` tag we check the equality\n * of the VNodes corresponding to the `
` tags and, since they are the\n * same tag in the same position, we'd be able to avoid completely\n * re-rendering the subtree under them with a new DOM element and would just\n * call out to `patch` to handle reconciling their children and so on.\n *\n * 3. Check, for both windows, to see if the element at the beginning of the\n * window corresponds to the element at the end of the other window. This is\n * a heuristic which will let us identify _some_ situations in which\n * elements have changed position, for instance it _should_ detect that the\n * children nodes themselves have not changed but merely moved in the\n * following example:\n *\n * oldVNode: `
`\n * newVNode: `
`\n *\n * If we find cases like this then we also need to move the concrete DOM\n * elements corresponding to the moved children to write the re-order to the\n * DOM.\n *\n * 4. Finally, if VNodes have the `key` attribute set on them we check for any\n * nodes in the old children which have the same key as the first element in\n * our window on the new children. If we find such a node we handle calling\n * out to `patch`, moving relevant DOM nodes, and so on, in accordance with\n * what we find.\n *\n * Finally, once we've narrowed our 'windows' to the point that either of them\n * collapse (i.e. they have length 0) we then handle any remaining VNode\n * insertion or deletion that needs to happen to get a DOM state that correctly\n * reflects the new child VNodes. If, for instance, after our window on the old\n * children has collapsed we still have more nodes on the new children that\n * we haven't dealt with yet then we need to add them, or if the new children\n * collapse but we still have unhandled _old_ children then we need to make\n * sure the corresponding DOM nodes are removed.\n *\n * @param parentElm the node into which the parent VNode is rendered\n * @param oldCh the old children of the parent node\n * @param newVNode the new VNode which will replace the parent\n * @param newCh the new children of the parent node\n */\nconst updateChildren = (parentElm, oldCh, newVNode, newCh) => {\n let oldStartIdx = 0;\n let newStartIdx = 0;\n let idxInOld = 0;\n let i = 0;\n let oldEndIdx = oldCh.length - 1;\n let oldStartVnode = oldCh[0];\n let oldEndVnode = oldCh[oldEndIdx];\n let newEndIdx = newCh.length - 1;\n let newStartVnode = newCh[0];\n let newEndVnode = newCh[newEndIdx];\n let node;\n let elmToMove;\n while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {\n if (oldStartVnode == null) {\n // VNode might have been moved left\n oldStartVnode = oldCh[++oldStartIdx];\n }\n else if (oldEndVnode == null) {\n oldEndVnode = oldCh[--oldEndIdx];\n }\n else if (newStartVnode == null) {\n newStartVnode = newCh[++newStartIdx];\n }\n else if (newEndVnode == null) {\n newEndVnode = newCh[--newEndIdx];\n }\n else if (isSameVnode(oldStartVnode, newStartVnode)) {\n // if the start nodes are the same then we should patch the new VNode\n // onto the old one, and increment our `newStartIdx` and `oldStartIdx`\n // indices to reflect that. We don't need to move any DOM Nodes around\n // since things are matched up in order.\n patch(oldStartVnode, newStartVnode);\n oldStartVnode = oldCh[++oldStartIdx];\n newStartVnode = newCh[++newStartIdx];\n }\n else if (isSameVnode(oldEndVnode, newEndVnode)) {\n // likewise, if the end nodes are the same we patch new onto old and\n // decrement our end indices, and also likewise in this case we don't\n // need to move any DOM Nodes.\n patch(oldEndVnode, newEndVnode);\n oldEndVnode = oldCh[--oldEndIdx];\n newEndVnode = newCh[--newEndIdx];\n }\n else if (isSameVnode(oldStartVnode, newEndVnode)) {\n // case: \"Vnode moved right\"\n //\n // We've found that the last node in our window on the new children is\n // the same VNode as the _first_ node in our window on the old children\n // we're dealing with now. Visually, this is the layout of these two\n // nodes:\n //\n // newCh: [..., newStartVnode , ... , newEndVnode , ...]\n // ^^^^^^^^^^^\n // oldCh: [..., oldStartVnode , ... , oldEndVnode , ...]\n // ^^^^^^^^^^^^^\n //\n // In this situation we need to patch `newEndVnode` onto `oldStartVnode`\n // and move the DOM element for `oldStartVnode`.\n if ((oldStartVnode.$tag$ === 'slot' || newEndVnode.$tag$ === 'slot')) {\n putBackInOriginalLocation(oldStartVnode.$elm$.parentNode, false);\n }\n patch(oldStartVnode, newEndVnode);\n // We need to move the element for `oldStartVnode` into a position which\n // will be appropriate for `newEndVnode`. For this we can use\n // `.insertBefore` and `oldEndVnode.$elm$.nextSibling`. If there is a\n // sibling for `oldEndVnode.$elm$` then we want to move the DOM node for\n // `oldStartVnode` between `oldEndVnode` and it's sibling, like so:\n //\n //
\n //
\n //
\n // \n //
\n // \n // ```\n // In this case if we do not unshadow here and use the value of the shadowing property, attributeChangedCallback\n // will be called with `newValue = \"some-value\"` and will set the shadowed property (this.someAttribute = \"another-value\")\n // to the value that was set inline i.e. \"some-value\" from above example. When\n // the connectedCallback attempts to unshadow it will use \"some-value\" as the initial value rather than \"another-value\"\n //\n // The case where the attribute was NOT set inline but was not set programmatically shall be handled/unshadowed\n // by connectedCallback as this attributeChangedCallback will not fire.\n //\n // https://developers.google.com/web/fundamentals/web-components/best-practices#lazy-properties\n //\n // TODO(STENCIL-16) we should think about whether or not we actually want to be reflecting the attributes to\n // properties here given that this goes against best practices outlined here\n // https://developers.google.com/web/fundamentals/web-components/best-practices#avoid-reentrancy\n if (this.hasOwnProperty(propName)) {\n newValue = this[propName];\n delete this[propName];\n }\n else if (prototype.hasOwnProperty(propName) &&\n typeof this[propName] === 'number' &&\n this[propName] == newValue) {\n // if the propName exists on the prototype of `Cstr`, this update may be a result of Stencil using native\n // APIs to reflect props as attributes. Calls to `setAttribute(someElement, propName)` will result in\n // `propName` to be converted to a `DOMString`, which may not be what we want for other primitive props.\n return;\n }\n this[propName] = newValue === null && typeof this[propName] === 'boolean' ? false : newValue;\n });\n };\n // create an array of attributes to observe\n // and also create a map of html attribute name to js property name\n Cstr.observedAttributes = members\n .filter(([_, m]) => m[0] & 15 /* MEMBER_FLAGS.HasAttribute */) // filter to only keep props that should match attributes\n .map(([propName, m]) => {\n const attrName = m[1] || propName;\n attrNameToPropName.set(attrName, propName);\n if (m[0] & 512 /* MEMBER_FLAGS.ReflectAttr */) {\n cmpMeta.$attrsToReflect$.push([propName, attrName]);\n }\n return attrName;\n });\n }\n }\n return Cstr;\n};\nconst initializeComponent = async (elm, hostRef, cmpMeta, hmrVersionId, Cstr) => {\n // initializeComponent\n if ((hostRef.$flags$ & 32 /* HOST_FLAGS.hasInitializedComponent */) === 0) {\n {\n // we haven't initialized this element yet\n hostRef.$flags$ |= 32 /* HOST_FLAGS.hasInitializedComponent */;\n // lazy loaded components\n // request the component's implementation to be\n // wired up with the host element\n Cstr = loadModule(cmpMeta);\n if (Cstr.then) {\n // Await creates a micro-task avoid if possible\n const endLoad = uniqueTime();\n Cstr = await Cstr;\n endLoad();\n }\n if (!Cstr.isProxied) {\n // we've never proxied this Constructor before\n // let's add the getters/setters to its prototype before\n // the first time we create an instance of the implementation\n {\n cmpMeta.$watchers$ = Cstr.watchers;\n }\n proxyComponent(Cstr, cmpMeta, 2 /* PROXY_FLAGS.proxyState */);\n Cstr.isProxied = true;\n }\n const endNewInstance = createTime('createInstance', cmpMeta.$tagName$);\n // ok, time to construct the instance\n // but let's keep track of when we start and stop\n // so that the getters/setters don't incorrectly step on data\n {\n hostRef.$flags$ |= 8 /* HOST_FLAGS.isConstructingInstance */;\n }\n // construct the lazy-loaded component implementation\n // passing the hostRef is very important during\n // construction in order to directly wire together the\n // host element and the lazy-loaded instance\n try {\n new Cstr(hostRef);\n }\n catch (e) {\n consoleError(e);\n }\n {\n hostRef.$flags$ &= ~8 /* HOST_FLAGS.isConstructingInstance */;\n }\n {\n hostRef.$flags$ |= 128 /* HOST_FLAGS.isWatchReady */;\n }\n endNewInstance();\n fireConnectedCallback(hostRef.$lazyInstance$);\n }\n if (Cstr.style) {\n // this component has styles but we haven't registered them yet\n let style = Cstr.style;\n if (typeof style !== 'string') {\n style = style[(hostRef.$modeName$ = computeMode(elm))];\n }\n const scopeId = getScopeId(cmpMeta, hostRef.$modeName$);\n if (!styles.has(scopeId)) {\n const endRegisterStyles = createTime('registerStyles', cmpMeta.$tagName$);\n registerStyle(scopeId, style, !!(cmpMeta.$flags$ & 1 /* CMP_FLAGS.shadowDomEncapsulation */));\n endRegisterStyles();\n }\n }\n }\n // we've successfully created a lazy instance\n const ancestorComponent = hostRef.$ancestorComponent$;\n const schedule = () => scheduleUpdate(hostRef, true);\n if (ancestorComponent && ancestorComponent['s-rc']) {\n // this is the initial load and this component it has an ancestor component\n // but the ancestor component has NOT fired its will update lifecycle yet\n // so let's just cool our jets and wait for the ancestor to continue first\n // this will get fired off when the ancestor component\n // finally gets around to rendering its lazy self\n // fire off the initial update\n ancestorComponent['s-rc'].push(schedule);\n }\n else {\n schedule();\n }\n};\nconst fireConnectedCallback = (instance) => {\n {\n safeCall(instance, 'connectedCallback');\n }\n};\nconst connectedCallback = (elm) => {\n if ((plt.$flags$ & 1 /* PLATFORM_FLAGS.isTmpDisconnected */) === 0) {\n const hostRef = getHostRef(elm);\n const cmpMeta = hostRef.$cmpMeta$;\n const endConnected = createTime('connectedCallback', cmpMeta.$tagName$);\n if (!(hostRef.$flags$ & 1 /* HOST_FLAGS.hasConnected */)) {\n // first time this component has connected\n hostRef.$flags$ |= 1 /* HOST_FLAGS.hasConnected */;\n let hostId;\n {\n hostId = elm.getAttribute(HYDRATE_ID);\n if (hostId) {\n if (cmpMeta.$flags$ & 1 /* CMP_FLAGS.shadowDomEncapsulation */) {\n const scopeId = addStyle(elm.shadowRoot, cmpMeta, elm.getAttribute('s-mode'))\n ;\n elm.classList.remove(scopeId + '-h', scopeId + '-s');\n }\n initializeClientHydrate(elm, cmpMeta.$tagName$, hostId, hostRef);\n }\n }\n if (!hostId) {\n // initUpdate\n // if the slot polyfill is required we'll need to put some nodes\n // in here to act as original content anchors as we move nodes around\n // host element has been connected to the DOM\n if ((cmpMeta.$flags$ & (4 /* CMP_FLAGS.hasSlotRelocation */ | 8 /* CMP_FLAGS.needsShadowDomShim */))) {\n setContentReference(elm);\n }\n }\n {\n // find the first ancestor component (if there is one) and register\n // this component as one of the actively loading child components for its ancestor\n let ancestorComponent = elm;\n while ((ancestorComponent = ancestorComponent.parentNode || ancestorComponent.host)) {\n // climb up the ancestors looking for the first\n // component that hasn't finished its lifecycle update yet\n if ((ancestorComponent.nodeType === 1 /* NODE_TYPE.ElementNode */ &&\n ancestorComponent.hasAttribute('s-id') &&\n ancestorComponent['s-p']) ||\n ancestorComponent['s-p']) {\n // we found this components first ancestor component\n // keep a reference to this component's ancestor component\n attachToAncestor(hostRef, (hostRef.$ancestorComponent$ = ancestorComponent));\n break;\n }\n }\n }\n // Lazy properties\n // https://developers.google.com/web/fundamentals/web-components/best-practices#lazy-properties\n if (cmpMeta.$members$) {\n Object.entries(cmpMeta.$members$).map(([memberName, [memberFlags]]) => {\n if (memberFlags & 31 /* MEMBER_FLAGS.Prop */ && elm.hasOwnProperty(memberName)) {\n const value = elm[memberName];\n delete elm[memberName];\n elm[memberName] = value;\n }\n });\n }\n {\n // connectedCallback, taskQueue, initialLoad\n // angular sets attribute AFTER connectCallback\n // https://github.com/angular/angular/issues/18909\n // https://github.com/angular/angular/issues/19940\n nextTick(() => initializeComponent(elm, hostRef, cmpMeta));\n }\n }\n else {\n // not the first time this has connected\n // reattach any event listeners to the host\n // since they would have been removed when disconnected\n addHostEventListeners(elm, hostRef, cmpMeta.$listeners$);\n // fire off connectedCallback() on component instance\n fireConnectedCallback(hostRef.$lazyInstance$);\n }\n endConnected();\n }\n};\nconst setContentReference = (elm) => {\n // only required when we're NOT using native shadow dom (slot)\n // or this browser doesn't support native shadow dom\n // and this host element was NOT created with SSR\n // let's pick out the inner content for slot projection\n // create a node to represent where the original\n // content was first placed, which is useful later on\n const contentRefElm = (elm['s-cr'] = doc.createComment(''));\n contentRefElm['s-cn'] = true;\n elm.insertBefore(contentRefElm, elm.firstChild);\n};\nconst disconnectedCallback = (elm) => {\n if ((plt.$flags$ & 1 /* PLATFORM_FLAGS.isTmpDisconnected */) === 0) {\n const hostRef = getHostRef(elm);\n const instance = hostRef.$lazyInstance$ ;\n {\n if (hostRef.$rmListeners$) {\n hostRef.$rmListeners$.map((rmListener) => rmListener());\n hostRef.$rmListeners$ = undefined;\n }\n }\n {\n safeCall(instance, 'disconnectedCallback');\n }\n }\n};\nconst bootstrapLazy = (lazyBundles, options = {}) => {\n const endBootstrap = createTime();\n const cmpTags = [];\n const exclude = options.exclude || [];\n const customElements = win.customElements;\n const head = doc.head;\n const metaCharset = /*@__PURE__*/ head.querySelector('meta[charset]');\n const visibilityStyle = /*@__PURE__*/ doc.createElement('style');\n const deferredConnectedCallbacks = [];\n const styles = /*@__PURE__*/ doc.querySelectorAll(`[${HYDRATED_STYLE_ID}]`);\n let appLoadFallback;\n let isBootstrapping = true;\n let i = 0;\n Object.assign(plt, options);\n plt.$resourcesUrl$ = new URL(options.resourcesUrl || './', doc.baseURI).href;\n {\n // If the app is already hydrated there is not point to disable the\n // async queue. This will improve the first input delay\n plt.$flags$ |= 2 /* PLATFORM_FLAGS.appLoaded */;\n }\n {\n for (; i < styles.length; i++) {\n registerStyle(styles[i].getAttribute(HYDRATED_STYLE_ID), convertScopedToShadow(styles[i].innerHTML), true);\n }\n }\n lazyBundles.map((lazyBundle) => {\n lazyBundle[1].map((compactMeta) => {\n const cmpMeta = {\n $flags$: compactMeta[0],\n $tagName$: compactMeta[1],\n $members$: compactMeta[2],\n $listeners$: compactMeta[3],\n };\n {\n cmpMeta.$members$ = compactMeta[2];\n }\n {\n cmpMeta.$listeners$ = compactMeta[3];\n }\n {\n cmpMeta.$attrsToReflect$ = [];\n }\n {\n cmpMeta.$watchers$ = {};\n }\n const tagName = cmpMeta.$tagName$;\n const HostElement = class extends HTMLElement {\n // StencilLazyHost\n constructor(self) {\n // @ts-ignore\n super(self);\n self = this;\n registerHost(self, cmpMeta);\n if (cmpMeta.$flags$ & 1 /* CMP_FLAGS.shadowDomEncapsulation */) {\n // this component is using shadow dom\n // and this browser supports shadow dom\n // add the read-only property \"shadowRoot\" to the host element\n // adding the shadow root build conditionals to minimize runtime\n {\n {\n self.attachShadow({\n mode: 'open',\n delegatesFocus: !!(cmpMeta.$flags$ & 16 /* CMP_FLAGS.shadowDelegatesFocus */),\n });\n }\n }\n }\n }\n connectedCallback() {\n if (appLoadFallback) {\n clearTimeout(appLoadFallback);\n appLoadFallback = null;\n }\n if (isBootstrapping) {\n // connectedCallback will be processed once all components have been registered\n deferredConnectedCallbacks.push(this);\n }\n else {\n plt.jmp(() => connectedCallback(this));\n }\n }\n disconnectedCallback() {\n plt.jmp(() => disconnectedCallback(this));\n }\n componentOnReady() {\n return getHostRef(this).$onReadyPromise$;\n }\n };\n cmpMeta.$lazyBundleId$ = lazyBundle[0];\n if (!exclude.includes(tagName) && !customElements.get(tagName)) {\n cmpTags.push(tagName);\n customElements.define(tagName, proxyComponent(HostElement, cmpMeta, 1 /* PROXY_FLAGS.isElementConstructor */));\n }\n });\n });\n {\n visibilityStyle.innerHTML = cmpTags + HYDRATED_CSS;\n visibilityStyle.setAttribute('data-styles', '');\n head.insertBefore(visibilityStyle, metaCharset ? metaCharset.nextSibling : head.firstChild);\n }\n // Process deferred connectedCallbacks now all components have been registered\n isBootstrapping = false;\n if (deferredConnectedCallbacks.length) {\n deferredConnectedCallbacks.map((host) => host.connectedCallback());\n }\n else {\n {\n plt.jmp(() => (appLoadFallback = setTimeout(appDidLoad, 30)));\n }\n }\n // Fallback appLoad event\n endBootstrap();\n};\nconst getAssetPath = (path) => {\n const assetUrl = new URL(path, plt.$resourcesUrl$);\n return assetUrl.origin !== win.location.origin ? assetUrl.href : assetUrl.pathname;\n};\nconst hostRefs = /*@__PURE__*/ new WeakMap();\nconst getHostRef = (ref) => hostRefs.get(ref);\nconst registerInstance = (lazyInstance, hostRef) => hostRefs.set((hostRef.$lazyInstance$ = lazyInstance), hostRef);\nconst registerHost = (elm, cmpMeta) => {\n const hostRef = {\n $flags$: 0,\n $hostElement$: elm,\n $cmpMeta$: cmpMeta,\n $instanceValues$: new Map(),\n };\n {\n hostRef.$onInstancePromise$ = new Promise((r) => (hostRef.$onInstanceResolve$ = r));\n }\n {\n hostRef.$onReadyPromise$ = new Promise((r) => (hostRef.$onReadyResolve$ = r));\n elm['s-p'] = [];\n elm['s-rc'] = [];\n }\n addHostEventListeners(elm, hostRef, cmpMeta.$listeners$);\n return hostRefs.set(elm, hostRef);\n};\nconst isMemberInElement = (elm, memberName) => memberName in elm;\nconst consoleError = (e, el) => (0, console.error)(e, el);\nconst cmpModules = /*@__PURE__*/ new Map();\nconst loadModule = (cmpMeta, hostRef, hmrVersionId) => {\n // loadModuleImport\n const exportName = cmpMeta.$tagName$.replace(/-/g, '_');\n const bundleId = cmpMeta.$lazyBundleId$;\n const module = cmpModules.get(bundleId) ;\n if (module) {\n return module[exportName];\n }\n /*!__STENCIL_STATIC_IMPORT_SWITCH__*/\n return import(\n /* @vite-ignore */\n /* webpackInclude: /\\.entry\\.js$/ */\n /* webpackExclude: /\\.system\\.entry\\.js$/ */\n /* webpackMode: \"lazy\" */\n `./${bundleId}.entry.js${''}`).then((importedModule) => {\n {\n cmpModules.set(bundleId, importedModule);\n }\n return importedModule[exportName];\n }, consoleError);\n};\nconst styles = /*@__PURE__*/ new Map();\nconst modeResolutionChain = [];\nconst queueDomReads = [];\nconst queueDomWrites = [];\nconst queueTask = (queue, write) => (cb) => {\n queue.push(cb);\n if (!queuePending) {\n queuePending = true;\n if (write && plt.$flags$ & 4 /* PLATFORM_FLAGS.queueSync */) {\n nextTick(flush);\n }\n else {\n plt.raf(flush);\n }\n }\n};\nconst consume = (queue) => {\n for (let i = 0; i < queue.length; i++) {\n try {\n queue[i](performance.now());\n }\n catch (e) {\n consoleError(e);\n }\n }\n queue.length = 0;\n};\nconst flush = () => {\n // always force a bunch of medium callbacks to run, but still have\n // a throttle on how many can run in a certain time\n // DOM READS!!!\n consume(queueDomReads);\n // DOM WRITES!!!\n {\n consume(queueDomWrites);\n if ((queuePending = queueDomReads.length > 0)) {\n // still more to do yet, but we've run out of time\n // let's let this thing cool off and try again in the next tick\n plt.raf(flush);\n }\n }\n};\nconst nextTick = /*@__PURE__*/ (cb) => promiseResolve().then(cb);\nconst readTask = /*@__PURE__*/ queueTask(queueDomReads, false);\nconst writeTask = /*@__PURE__*/ queueTask(queueDomWrites, true);\nconst Build = {\n isDev: false,\n isBrowser: true,\n isServer: false,\n isTesting: false,\n};\n\nexport { Build as B, Host as H, NAMESPACE as N, setMode as a, bootstrapLazy as b, writeTask as c, doc as d, createEvent as e, readTask as f, getMode as g, h, getElement as i, forceUpdate as j, getAssetPath as k, promiseResolve as p, registerInstance as r, setPlatformHelpers as s, win as w };\n","/*!\n * (C) Ionic http://ionicframework.com - MIT License\n */\nexport { c as createAnimation } from './animation-4ff3f603.js';\nexport { iosTransitionAnimation } from './ios.transition-4a0deed6.js';\nexport { mdTransitionAnimation } from './md.transition-0d261204.js';\nexport { g as getTimeGivenProgression } from './cubic-bezier-e78d1307.js';\nexport { createGesture } from './index-422b6e83.js';\nexport { g as getPlatforms, i as initialize, a as isPlatform } from './ionic-global-c74e4951.js';\nimport { a as addEventListener, r as raf, b as removeEventListener } from './helpers-3b390e48.js';\nexport { c as componentOnReady } from './helpers-3b390e48.js';\nexport { I as IonicSafeString, g as getMode, s as setupConfig } from './config-d4f612d2.js';\nexport { a as LIFECYCLE_DID_ENTER, c as LIFECYCLE_DID_LEAVE, L as LIFECYCLE_WILL_ENTER, b as LIFECYCLE_WILL_LEAVE, d as LIFECYCLE_WILL_UNLOAD } from './index-27c7e5c4.js';\nexport { m as menuController } from './index-2b839939.js';\nexport { b as actionSheetController, a as alertController, l as loadingController, m as modalController, p as pickerController, c as popoverController, t as toastController } from './overlays-58fa8e4d.js';\nimport './index-33ffec25.js';\nimport './gesture-controller-17060b7c.js';\nimport './index-8e692445.js';\nimport './hardware-back-button-490df115.js';\n\n/**\n * This is a plugin for Swiper that allows it to work\n * with Ionic Framework and the routing integrations.\n * Without this plugin, Swiper would be incapable of correctly\n * determining the dimensions of the slides component as\n * each view is initially hidden before transitioning in.\n */\nconst setupSwiperInIonic = (swiper, watchForIonPageChanges = true) => {\n if (typeof window === 'undefined') {\n return;\n }\n const swiperEl = swiper.el;\n const ionPage = swiperEl.closest('.ion-page');\n if (!ionPage) {\n if (watchForIonPageChanges) {\n /**\n * If no ion page found, it is possible\n * that we are in the overlay setup step\n * where the inner component has been\n * created but not attached to the DOM yet.\n * If so, wait for the .ion-page class to\n * appear on the root div and re-run setup.\n */\n const rootNode = swiperEl.getRootNode();\n if (rootNode.tagName === 'DIV') {\n const mo = new MutationObserver((m) => {\n const mutation = m[0];\n const wasEmpty = mutation.oldValue === null;\n const hasIonPage = rootNode.classList.contains('ion-page');\n /**\n * Now that we have an .ion-page class\n * we can safely attempt setup again.\n */\n if (wasEmpty && hasIonPage) {\n mo.disconnect();\n /**\n * Set false here so we do not\n * get infinite loops\n */\n setupSwiperInIonic(swiper, false);\n }\n });\n mo.observe(rootNode, {\n attributeFilter: ['class'],\n attributeOldValue: true,\n });\n }\n }\n return;\n }\n /**\n * If using slides in a modal or\n * popover we need to wait for the\n * overlay to be shown as these components\n * are hidden when they are initially created.\n */\n const modalOrPopover = swiperEl.closest('ion-modal, ion-popover');\n if (modalOrPopover) {\n const eventName = modalOrPopover.tagName === 'ION-MODAL' ? 'ionModalWillPresent' : 'ionPopoverWillPresent';\n const overlayCallback = () => {\n /**\n * We need an raf here so the update\n * is fired one tick after the overlay is shown.\n */\n raf(() => {\n swiperEl.swiper.update();\n removeEventListener(modalOrPopover, eventName, overlayCallback);\n });\n };\n addEventListener(modalOrPopover, eventName, overlayCallback);\n }\n else {\n /**\n * If using slides in a page\n * we need to wait for the ion-page-invisible\n * class to be removed so Swiper can correctly\n * compute the dimensions of the slides.\n */\n const mo = new MutationObserver((m) => {\n var _a;\n const mutation = m[0];\n const wasPageHidden = (_a = mutation.oldValue) === null || _a === void 0 ? void 0 : _a.includes('ion-page-invisible');\n const isPageHidden = ionPage.classList.contains('ion-page-invisible');\n /**\n * Only update Swiper if the page was\n * hidden but is no longer hidden.\n */\n if (!isPageHidden && isPageHidden !== wasPageHidden) {\n swiperEl.swiper.update();\n }\n });\n mo.observe(ionPage, {\n attributeFilter: ['class'],\n attributeOldValue: true,\n });\n }\n /**\n * We also need to listen for the appload event\n * which is emitted by Stencil in the\n * event that Swiper is being used on the\n * view that is rendered initially.\n */\n const onAppLoad = () => {\n swiperEl.swiper.update();\n removeEventListener(window, 'appload', onAppLoad);\n };\n addEventListener(window, 'appload', onAppLoad);\n};\nconst IonicSwiper = {\n name: 'ionic',\n on: {\n afterInit(swiper) {\n console.warn('[Deprecation Warning]: The IonicSwiper module has been deprecated in favor of the IonSlides module. This change was made to better support the Swiper 7 release. The IonicSwiper module will be removed in Ionic 7.0. See https://ionicframework.com/docs/api/slides#migration for revised migration steps.');\n setupSwiperInIonic(swiper);\n },\n },\n};\n\nconst IonicSlides = (opts) => {\n const { swiper, extendParams } = opts;\n const slidesParams = {\n effect: undefined,\n direction: 'horizontal',\n initialSlide: 0,\n loop: false,\n parallax: false,\n slidesPerView: 1,\n spaceBetween: 0,\n speed: 300,\n slidesPerColumn: 1,\n slidesPerColumnFill: 'column',\n slidesPerGroup: 1,\n centeredSlides: false,\n slidesOffsetBefore: 0,\n slidesOffsetAfter: 0,\n touchEventsTarget: 'container',\n freeMode: false,\n freeModeMomentum: true,\n freeModeMomentumRatio: 1,\n freeModeMomentumBounce: true,\n freeModeMomentumBounceRatio: 1,\n freeModeMomentumVelocityRatio: 1,\n freeModeSticky: false,\n freeModeMinimumVelocity: 0.02,\n autoHeight: false,\n setWrapperSize: false,\n zoom: {\n maxRatio: 3,\n minRatio: 1,\n toggle: false,\n },\n touchRatio: 1,\n touchAngle: 45,\n simulateTouch: true,\n touchStartPreventDefault: false,\n shortSwipes: true,\n longSwipes: true,\n longSwipesRatio: 0.5,\n longSwipesMs: 300,\n followFinger: true,\n threshold: 0,\n touchMoveStopPropagation: true,\n touchReleaseOnEdges: false,\n iOSEdgeSwipeDetection: false,\n iOSEdgeSwipeThreshold: 20,\n resistance: true,\n resistanceRatio: 0.85,\n watchSlidesProgress: false,\n watchSlidesVisibility: false,\n preventClicks: true,\n preventClicksPropagation: true,\n slideToClickedSlide: false,\n loopAdditionalSlides: 0,\n noSwiping: true,\n runCallbacksOnInit: true,\n coverflowEffect: {\n rotate: 50,\n stretch: 0,\n depth: 100,\n modifier: 1,\n slideShadows: true,\n },\n flipEffect: {\n slideShadows: true,\n limitRotation: true,\n },\n cubeEffect: {\n slideShadows: true,\n shadow: true,\n shadowOffset: 20,\n shadowScale: 0.94,\n },\n fadeEffect: {\n crossFade: false,\n },\n a11y: {\n prevSlideMessage: 'Previous slide',\n nextSlideMessage: 'Next slide',\n firstSlideMessage: 'This is the first slide',\n lastSlideMessage: 'This is the last slide',\n },\n };\n if (swiper.pagination) {\n slidesParams.pagination = {\n type: 'bullets',\n clickable: false,\n hideOnClick: false,\n };\n }\n if (swiper.scrollbar) {\n slidesParams.scrollbar = {\n hide: true,\n };\n }\n extendParams(slidesParams);\n};\n\nexport { IonicSlides, IonicSwiper };\n","/*!\n * (C) Ionic http://ionicframework.com - MIT License\n */\nimport { s as setPlatformHelpers, g as getMode, a as setMode } from './index-8e692445.js';\n\n// TODO(FW-2832): types\nclass Config {\n constructor() {\n this.m = new Map();\n }\n reset(configObj) {\n this.m = new Map(Object.entries(configObj));\n }\n get(key, fallback) {\n const value = this.m.get(key);\n return value !== undefined ? value : fallback;\n }\n getBoolean(key, fallback = false) {\n const val = this.m.get(key);\n if (val === undefined) {\n return fallback;\n }\n if (typeof val === 'string') {\n return val === 'true';\n }\n return !!val;\n }\n getNumber(key, fallback) {\n const val = parseFloat(this.m.get(key));\n return isNaN(val) ? (fallback !== undefined ? fallback : NaN) : val;\n }\n set(key, value) {\n this.m.set(key, value);\n }\n}\nconst config = /*@__PURE__*/ new Config();\nconst configFromSession = (win) => {\n try {\n const configStr = win.sessionStorage.getItem(IONIC_SESSION_KEY);\n return configStr !== null ? JSON.parse(configStr) : {};\n }\n catch (e) {\n return {};\n }\n};\nconst saveConfig = (win, c) => {\n try {\n win.sessionStorage.setItem(IONIC_SESSION_KEY, JSON.stringify(c));\n }\n catch (e) {\n return;\n }\n};\nconst configFromURL = (win) => {\n const configObj = {};\n win.location.search\n .slice(1)\n .split('&')\n .map((entry) => entry.split('='))\n .map(([key, value]) => [decodeURIComponent(key), decodeURIComponent(value)])\n .filter(([key]) => startsWith(key, IONIC_PREFIX))\n .map(([key, value]) => [key.slice(IONIC_PREFIX.length), value])\n .forEach(([key, value]) => {\n configObj[key] = value;\n });\n return configObj;\n};\nconst startsWith = (input, search) => {\n return input.substr(0, search.length) === search;\n};\nconst IONIC_PREFIX = 'ionic:';\nconst IONIC_SESSION_KEY = 'ionic-persist-config';\n\nconst getPlatforms = (win) => setupPlatforms(win);\nconst isPlatform = (winOrPlatform, platform) => {\n if (typeof winOrPlatform === 'string') {\n platform = winOrPlatform;\n winOrPlatform = undefined;\n }\n return getPlatforms(winOrPlatform).includes(platform);\n};\nconst setupPlatforms = (win = window) => {\n if (typeof win === 'undefined') {\n return [];\n }\n win.Ionic = win.Ionic || {};\n let platforms = win.Ionic.platforms;\n if (platforms == null) {\n platforms = win.Ionic.platforms = detectPlatforms(win);\n platforms.forEach((p) => win.document.documentElement.classList.add(`plt-${p}`));\n }\n return platforms;\n};\nconst detectPlatforms = (win) => {\n const customPlatformMethods = config.get('platform');\n return Object.keys(PLATFORMS_MAP).filter((p) => {\n const customMethod = customPlatformMethods === null || customPlatformMethods === void 0 ? void 0 : customPlatformMethods[p];\n return typeof customMethod === 'function' ? customMethod(win) : PLATFORMS_MAP[p](win);\n });\n};\nconst isMobileWeb = (win) => isMobile(win) && !isHybrid(win);\nconst isIpad = (win) => {\n // iOS 12 and below\n if (testUserAgent(win, /iPad/i)) {\n return true;\n }\n // iOS 13+\n if (testUserAgent(win, /Macintosh/i) && isMobile(win)) {\n return true;\n }\n return false;\n};\nconst isIphone = (win) => testUserAgent(win, /iPhone/i);\nconst isIOS = (win) => testUserAgent(win, /iPhone|iPod/i) || isIpad(win);\nconst isAndroid = (win) => testUserAgent(win, /android|sink/i);\nconst isAndroidTablet = (win) => {\n return isAndroid(win) && !testUserAgent(win, /mobile/i);\n};\nconst isPhablet = (win) => {\n const width = win.innerWidth;\n const height = win.innerHeight;\n const smallest = Math.min(width, height);\n const largest = Math.max(width, height);\n return smallest > 390 && smallest < 520 && largest > 620 && largest < 800;\n};\nconst isTablet = (win) => {\n const width = win.innerWidth;\n const height = win.innerHeight;\n const smallest = Math.min(width, height);\n const largest = Math.max(width, height);\n return isIpad(win) || isAndroidTablet(win) || (smallest > 460 && smallest < 820 && largest > 780 && largest < 1400);\n};\nconst isMobile = (win) => matchMedia(win, '(any-pointer:coarse)');\nconst isDesktop = (win) => !isMobile(win);\nconst isHybrid = (win) => isCordova(win) || isCapacitorNative(win);\nconst isCordova = (win) => !!(win['cordova'] || win['phonegap'] || win['PhoneGap']);\nconst isCapacitorNative = (win) => {\n const capacitor = win['Capacitor'];\n return !!(capacitor === null || capacitor === void 0 ? void 0 : capacitor.isNative);\n};\nconst isElectron = (win) => testUserAgent(win, /electron/i);\nconst isPWA = (win) => { var _a; return !!(((_a = win.matchMedia) === null || _a === void 0 ? void 0 : _a.call(win, '(display-mode: standalone)').matches) || win.navigator.standalone); };\nconst testUserAgent = (win, expr) => expr.test(win.navigator.userAgent);\nconst matchMedia = (win, query) => { var _a; return (_a = win.matchMedia) === null || _a === void 0 ? void 0 : _a.call(win, query).matches; };\nconst PLATFORMS_MAP = {\n ipad: isIpad,\n iphone: isIphone,\n ios: isIOS,\n android: isAndroid,\n phablet: isPhablet,\n tablet: isTablet,\n cordova: isCordova,\n capacitor: isCapacitorNative,\n electron: isElectron,\n pwa: isPWA,\n mobile: isMobile,\n mobileweb: isMobileWeb,\n desktop: isDesktop,\n hybrid: isHybrid,\n};\n\nlet defaultMode;\nconst getIonMode = (ref) => {\n return (ref && getMode(ref)) || defaultMode;\n};\nconst initialize = (userConfig = {}) => {\n if (typeof window === 'undefined') {\n return;\n }\n const doc = window.document;\n const win = window;\n const Ionic = (win.Ionic = win.Ionic || {});\n const platformHelpers = {};\n if (userConfig._ael) {\n platformHelpers.ael = userConfig._ael;\n }\n if (userConfig._rel) {\n platformHelpers.rel = userConfig._rel;\n }\n if (userConfig._ce) {\n platformHelpers.ce = userConfig._ce;\n }\n setPlatformHelpers(platformHelpers);\n // create the Ionic.config from raw config object (if it exists)\n // and convert Ionic.config into a ConfigApi that has a get() fn\n const configObj = Object.assign(Object.assign(Object.assign(Object.assign(Object.assign({}, configFromSession(win)), { persistConfig: false }), Ionic.config), configFromURL(win)), userConfig);\n config.reset(configObj);\n if (config.getBoolean('persistConfig')) {\n saveConfig(win, configObj);\n }\n // Setup platforms\n setupPlatforms(win);\n // first see if the mode was set as an attribute on \n // which could have been set by the user, or by pre-rendering\n // otherwise get the mode via config settings, and fallback to md\n Ionic.config = config;\n Ionic.mode = defaultMode = config.get('mode', doc.documentElement.getAttribute('mode') || (isPlatform(win, 'ios') ? 'ios' : 'md'));\n config.set('mode', defaultMode);\n doc.documentElement.setAttribute('mode', defaultMode);\n doc.documentElement.classList.add(defaultMode);\n if (config.getBoolean('_testing')) {\n config.set('animated', false);\n }\n const isIonicElement = (elm) => { var _a; return (_a = elm.tagName) === null || _a === void 0 ? void 0 : _a.startsWith('ION-'); };\n const isAllowedIonicModeValue = (elmMode) => ['ios', 'md'].includes(elmMode);\n setMode((elm) => {\n while (elm) {\n const elmMode = elm.mode || elm.getAttribute('mode');\n if (elmMode) {\n if (isAllowedIonicModeValue(elmMode)) {\n return elmMode;\n }\n else if (isIonicElement(elm)) {\n console.warn('Invalid ionic mode: \"' + elmMode + '\", expected: \"ios\" or \"md\"');\n }\n }\n elm = elm.parentElement;\n }\n return defaultMode;\n });\n};\n\nexport { isPlatform as a, getIonMode as b, config as c, getPlatforms as g, initialize as i };\n","/*!\n * (C) Ionic http://ionicframework.com - MIT License\n */\nimport { c as createAnimation } from './animation-4ff3f603.js';\nimport { g as getIonPageElement } from './index-27c7e5c4.js';\nimport './helpers-3b390e48.js';\nimport './index-33ffec25.js';\nimport './index-8e692445.js';\n\nconst DURATION = 540;\n// TODO(FW-2832): types\nconst getClonedElement = (tagName) => {\n return document.querySelector(`${tagName}.ion-cloned-element`);\n};\nconst shadow = (el) => {\n return el.shadowRoot || el;\n};\nconst getLargeTitle = (refEl) => {\n const tabs = refEl.tagName === 'ION-TABS' ? refEl : refEl.querySelector('ion-tabs');\n const query = 'ion-content ion-header:not(.header-collapse-condense-inactive) ion-title.title-large';\n if (tabs != null) {\n const activeTab = tabs.querySelector('ion-tab:not(.tab-hidden), .ion-page:not(.ion-page-hidden)');\n return activeTab != null ? activeTab.querySelector(query) : null;\n }\n return refEl.querySelector(query);\n};\nconst getBackButton = (refEl, backDirection) => {\n const tabs = refEl.tagName === 'ION-TABS' ? refEl : refEl.querySelector('ion-tabs');\n let buttonsList = [];\n if (tabs != null) {\n const activeTab = tabs.querySelector('ion-tab:not(.tab-hidden), .ion-page:not(.ion-page-hidden)');\n if (activeTab != null) {\n buttonsList = activeTab.querySelectorAll('ion-buttons');\n }\n }\n else {\n buttonsList = refEl.querySelectorAll('ion-buttons');\n }\n for (const buttons of buttonsList) {\n const parentHeader = buttons.closest('ion-header');\n const activeHeader = parentHeader && !parentHeader.classList.contains('header-collapse-condense-inactive');\n const backButton = buttons.querySelector('ion-back-button');\n const buttonsCollapse = buttons.classList.contains('buttons-collapse');\n const startSlot = buttons.slot === 'start' || buttons.slot === '';\n if (backButton !== null && startSlot && ((buttonsCollapse && activeHeader && backDirection) || !buttonsCollapse)) {\n return backButton;\n }\n }\n return null;\n};\nconst createLargeTitleTransition = (rootAnimation, rtl, backDirection, enteringEl, leavingEl) => {\n const enteringBackButton = getBackButton(enteringEl, backDirection);\n const leavingLargeTitle = getLargeTitle(leavingEl);\n const enteringLargeTitle = getLargeTitle(enteringEl);\n const leavingBackButton = getBackButton(leavingEl, backDirection);\n const shouldAnimationForward = enteringBackButton !== null && leavingLargeTitle !== null && !backDirection;\n const shouldAnimationBackward = enteringLargeTitle !== null && leavingBackButton !== null && backDirection;\n if (shouldAnimationForward) {\n const leavingLargeTitleBox = leavingLargeTitle.getBoundingClientRect();\n const enteringBackButtonBox = enteringBackButton.getBoundingClientRect();\n animateLargeTitle(rootAnimation, rtl, backDirection, leavingLargeTitle, leavingLargeTitleBox, enteringBackButtonBox);\n animateBackButton(rootAnimation, rtl, backDirection, enteringBackButton, leavingLargeTitleBox, enteringBackButtonBox);\n }\n else if (shouldAnimationBackward) {\n const enteringLargeTitleBox = enteringLargeTitle.getBoundingClientRect();\n const leavingBackButtonBox = leavingBackButton.getBoundingClientRect();\n animateLargeTitle(rootAnimation, rtl, backDirection, enteringLargeTitle, enteringLargeTitleBox, leavingBackButtonBox);\n animateBackButton(rootAnimation, rtl, backDirection, leavingBackButton, enteringLargeTitleBox, leavingBackButtonBox);\n }\n return {\n forward: shouldAnimationForward,\n backward: shouldAnimationBackward,\n };\n};\nconst animateBackButton = (rootAnimation, rtl, backDirection, backButtonEl, largeTitleBox, backButtonBox) => {\n const BACK_BUTTON_START_OFFSET = rtl ? `calc(100% - ${backButtonBox.right + 4}px)` : `${backButtonBox.left - 4}px`;\n const START_TEXT_TRANSLATE = rtl ? '7px' : '-7px';\n const END_TEXT_TRANSLATE = rtl ? '-4px' : '4px';\n const ICON_TRANSLATE = rtl ? '-4px' : '4px';\n const TEXT_ORIGIN_X = rtl ? 'right' : 'left';\n const ICON_ORIGIN_X = rtl ? 'left' : 'right';\n const FORWARD_TEXT_KEYFRAMES = [\n {\n offset: 0,\n opacity: 0,\n transform: `translate3d(${START_TEXT_TRANSLATE}, ${largeTitleBox.top - 40}px, 0) scale(2.1)`,\n },\n { offset: 1, opacity: 1, transform: `translate3d(${END_TEXT_TRANSLATE}, ${backButtonBox.top - 46}px, 0) scale(1)` },\n ];\n const BACKWARD_TEXT_KEYFRAMES = [\n { offset: 0, opacity: 1, transform: `translate3d(${END_TEXT_TRANSLATE}, ${backButtonBox.top - 46}px, 0) scale(1)` },\n { offset: 0.6, opacity: 0 },\n {\n offset: 1,\n opacity: 0,\n transform: `translate3d(${START_TEXT_TRANSLATE}, ${largeTitleBox.top - 40}px, 0) scale(2.1)`,\n },\n ];\n const TEXT_KEYFRAMES = backDirection ? BACKWARD_TEXT_KEYFRAMES : FORWARD_TEXT_KEYFRAMES;\n const FORWARD_ICON_KEYFRAMES = [\n { offset: 0, opacity: 0, transform: `translate3d(${ICON_TRANSLATE}, ${backButtonBox.top - 41}px, 0) scale(0.6)` },\n { offset: 1, opacity: 1, transform: `translate3d(${ICON_TRANSLATE}, ${backButtonBox.top - 46}px, 0) scale(1)` },\n ];\n const BACKWARD_ICON_KEYFRAMES = [\n { offset: 0, opacity: 1, transform: `translate3d(${ICON_TRANSLATE}, ${backButtonBox.top - 46}px, 0) scale(1)` },\n { offset: 0.2, opacity: 0, transform: `translate3d(${ICON_TRANSLATE}, ${backButtonBox.top - 41}px, 0) scale(0.6)` },\n { offset: 1, opacity: 0, transform: `translate3d(${ICON_TRANSLATE}, ${backButtonBox.top - 41}px, 0) scale(0.6)` },\n ];\n const ICON_KEYFRAMES = backDirection ? BACKWARD_ICON_KEYFRAMES : FORWARD_ICON_KEYFRAMES;\n const enteringBackButtonTextAnimation = createAnimation();\n const enteringBackButtonIconAnimation = createAnimation();\n const clonedBackButtonEl = getClonedElement('ion-back-button');\n const backButtonTextEl = shadow(clonedBackButtonEl).querySelector('.button-text');\n const backButtonIconEl = shadow(clonedBackButtonEl).querySelector('ion-icon');\n clonedBackButtonEl.text = backButtonEl.text;\n clonedBackButtonEl.mode = backButtonEl.mode;\n clonedBackButtonEl.icon = backButtonEl.icon;\n clonedBackButtonEl.color = backButtonEl.color;\n clonedBackButtonEl.disabled = backButtonEl.disabled;\n clonedBackButtonEl.style.setProperty('display', 'block');\n clonedBackButtonEl.style.setProperty('position', 'fixed');\n enteringBackButtonIconAnimation.addElement(backButtonIconEl);\n enteringBackButtonTextAnimation.addElement(backButtonTextEl);\n enteringBackButtonTextAnimation\n .beforeStyles({\n 'transform-origin': `${TEXT_ORIGIN_X} center`,\n })\n .beforeAddWrite(() => {\n backButtonEl.style.setProperty('display', 'none');\n clonedBackButtonEl.style.setProperty(TEXT_ORIGIN_X, BACK_BUTTON_START_OFFSET);\n })\n .afterAddWrite(() => {\n backButtonEl.style.setProperty('display', '');\n clonedBackButtonEl.style.setProperty('display', 'none');\n clonedBackButtonEl.style.removeProperty(TEXT_ORIGIN_X);\n })\n .keyframes(TEXT_KEYFRAMES);\n enteringBackButtonIconAnimation\n .beforeStyles({\n 'transform-origin': `${ICON_ORIGIN_X} center`,\n })\n .keyframes(ICON_KEYFRAMES);\n rootAnimation.addAnimation([enteringBackButtonTextAnimation, enteringBackButtonIconAnimation]);\n};\nconst animateLargeTitle = (rootAnimation, rtl, backDirection, largeTitleEl, largeTitleBox, backButtonBox) => {\n const TITLE_START_OFFSET = rtl ? `calc(100% - ${largeTitleBox.right}px)` : `${largeTitleBox.left}px`;\n const START_TRANSLATE = rtl ? '-18px' : '18px';\n const ORIGIN_X = rtl ? 'right' : 'left';\n const BACKWARDS_KEYFRAMES = [\n { offset: 0, opacity: 0, transform: `translate3d(${START_TRANSLATE}, ${backButtonBox.top - 4}px, 0) scale(0.49)` },\n { offset: 0.1, opacity: 0 },\n { offset: 1, opacity: 1, transform: `translate3d(0, ${largeTitleBox.top - 2}px, 0) scale(1)` },\n ];\n const FORWARDS_KEYFRAMES = [\n { offset: 0, opacity: 0.99, transform: `translate3d(0, ${largeTitleBox.top - 2}px, 0) scale(1)` },\n { offset: 0.6, opacity: 0 },\n { offset: 1, opacity: 0, transform: `translate3d(${START_TRANSLATE}, ${backButtonBox.top - 4}px, 0) scale(0.5)` },\n ];\n const KEYFRAMES = backDirection ? BACKWARDS_KEYFRAMES : FORWARDS_KEYFRAMES;\n const clonedTitleEl = getClonedElement('ion-title');\n const clonedLargeTitleAnimation = createAnimation();\n clonedTitleEl.innerText = largeTitleEl.innerText;\n clonedTitleEl.size = largeTitleEl.size;\n clonedTitleEl.color = largeTitleEl.color;\n clonedLargeTitleAnimation.addElement(clonedTitleEl);\n clonedLargeTitleAnimation\n .beforeStyles({\n 'transform-origin': `${ORIGIN_X} center`,\n height: '46px',\n display: '',\n position: 'relative',\n [ORIGIN_X]: TITLE_START_OFFSET,\n })\n .beforeAddWrite(() => {\n largeTitleEl.style.setProperty('display', 'none');\n })\n .afterAddWrite(() => {\n largeTitleEl.style.setProperty('display', '');\n clonedTitleEl.style.setProperty('display', 'none');\n })\n .keyframes(KEYFRAMES);\n rootAnimation.addAnimation(clonedLargeTitleAnimation);\n};\nconst iosTransitionAnimation = (navEl, opts) => {\n var _a;\n try {\n const EASING = 'cubic-bezier(0.32,0.72,0,1)';\n const OPACITY = 'opacity';\n const TRANSFORM = 'transform';\n const CENTER = '0%';\n const OFF_OPACITY = 0.8;\n const isRTL = navEl.ownerDocument.dir === 'rtl';\n const OFF_RIGHT = isRTL ? '-99.5%' : '99.5%';\n const OFF_LEFT = isRTL ? '33%' : '-33%';\n const enteringEl = opts.enteringEl;\n const leavingEl = opts.leavingEl;\n const backDirection = opts.direction === 'back';\n const contentEl = enteringEl.querySelector(':scope > ion-content');\n const headerEls = enteringEl.querySelectorAll(':scope > ion-header > *:not(ion-toolbar), :scope > ion-footer > *');\n const enteringToolBarEls = enteringEl.querySelectorAll(':scope > ion-header > ion-toolbar');\n const rootAnimation = createAnimation();\n const enteringContentAnimation = createAnimation();\n rootAnimation\n .addElement(enteringEl)\n .duration(((_a = opts.duration) !== null && _a !== void 0 ? _a : 0) || DURATION)\n .easing(opts.easing || EASING)\n .fill('both')\n .beforeRemoveClass('ion-page-invisible');\n if (leavingEl && navEl !== null && navEl !== undefined) {\n const navDecorAnimation = createAnimation();\n navDecorAnimation.addElement(navEl);\n rootAnimation.addAnimation(navDecorAnimation);\n }\n if (!contentEl && enteringToolBarEls.length === 0 && headerEls.length === 0) {\n enteringContentAnimation.addElement(enteringEl.querySelector(':scope > .ion-page, :scope > ion-nav, :scope > ion-tabs')); // REVIEW\n }\n else {\n enteringContentAnimation.addElement(contentEl); // REVIEW\n enteringContentAnimation.addElement(headerEls);\n }\n rootAnimation.addAnimation(enteringContentAnimation);\n if (backDirection) {\n enteringContentAnimation\n .beforeClearStyles([OPACITY])\n .fromTo('transform', `translateX(${OFF_LEFT})`, `translateX(${CENTER})`)\n .fromTo(OPACITY, OFF_OPACITY, 1);\n }\n else {\n // entering content, forward direction\n enteringContentAnimation\n .beforeClearStyles([OPACITY])\n .fromTo('transform', `translateX(${OFF_RIGHT})`, `translateX(${CENTER})`);\n }\n if (contentEl) {\n const enteringTransitionEffectEl = shadow(contentEl).querySelector('.transition-effect');\n if (enteringTransitionEffectEl) {\n const enteringTransitionCoverEl = enteringTransitionEffectEl.querySelector('.transition-cover');\n const enteringTransitionShadowEl = enteringTransitionEffectEl.querySelector('.transition-shadow');\n const enteringTransitionEffect = createAnimation();\n const enteringTransitionCover = createAnimation();\n const enteringTransitionShadow = createAnimation();\n enteringTransitionEffect\n .addElement(enteringTransitionEffectEl)\n .beforeStyles({ opacity: '1', display: 'block' })\n .afterStyles({ opacity: '', display: '' });\n enteringTransitionCover\n .addElement(enteringTransitionCoverEl) // REVIEW\n .beforeClearStyles([OPACITY])\n .fromTo(OPACITY, 0, 0.1);\n enteringTransitionShadow\n .addElement(enteringTransitionShadowEl) // REVIEW\n .beforeClearStyles([OPACITY])\n .fromTo(OPACITY, 0.03, 0.7);\n enteringTransitionEffect.addAnimation([enteringTransitionCover, enteringTransitionShadow]);\n enteringContentAnimation.addAnimation([enteringTransitionEffect]);\n }\n }\n const enteringContentHasLargeTitle = enteringEl.querySelector('ion-header.header-collapse-condense');\n const { forward, backward } = createLargeTitleTransition(rootAnimation, isRTL, backDirection, enteringEl, leavingEl);\n enteringToolBarEls.forEach((enteringToolBarEl) => {\n const enteringToolBar = createAnimation();\n enteringToolBar.addElement(enteringToolBarEl);\n rootAnimation.addAnimation(enteringToolBar);\n const enteringTitle = createAnimation();\n enteringTitle.addElement(enteringToolBarEl.querySelector('ion-title')); // REVIEW\n const enteringToolBarButtons = createAnimation();\n const buttons = Array.from(enteringToolBarEl.querySelectorAll('ion-buttons,[menuToggle]'));\n const parentHeader = enteringToolBarEl.closest('ion-header');\n const inactiveHeader = parentHeader === null || parentHeader === void 0 ? void 0 : parentHeader.classList.contains('header-collapse-condense-inactive');\n let buttonsToAnimate;\n if (backDirection) {\n buttonsToAnimate = buttons.filter((button) => {\n const isCollapseButton = button.classList.contains('buttons-collapse');\n return (isCollapseButton && !inactiveHeader) || !isCollapseButton;\n });\n }\n else {\n buttonsToAnimate = buttons.filter((button) => !button.classList.contains('buttons-collapse'));\n }\n enteringToolBarButtons.addElement(buttonsToAnimate);\n const enteringToolBarItems = createAnimation();\n enteringToolBarItems.addElement(enteringToolBarEl.querySelectorAll(':scope > *:not(ion-title):not(ion-buttons):not([menuToggle])'));\n const enteringToolBarBg = createAnimation();\n enteringToolBarBg.addElement(shadow(enteringToolBarEl).querySelector('.toolbar-background')); // REVIEW\n const enteringBackButton = createAnimation();\n const backButtonEl = enteringToolBarEl.querySelector('ion-back-button');\n if (backButtonEl) {\n enteringBackButton.addElement(backButtonEl);\n }\n enteringToolBar.addAnimation([\n enteringTitle,\n enteringToolBarButtons,\n enteringToolBarItems,\n enteringToolBarBg,\n enteringBackButton,\n ]);\n enteringToolBarButtons.fromTo(OPACITY, 0.01, 1);\n enteringToolBarItems.fromTo(OPACITY, 0.01, 1);\n if (backDirection) {\n if (!inactiveHeader) {\n enteringTitle\n .fromTo('transform', `translateX(${OFF_LEFT})`, `translateX(${CENTER})`)\n .fromTo(OPACITY, 0.01, 1);\n }\n enteringToolBarItems.fromTo('transform', `translateX(${OFF_LEFT})`, `translateX(${CENTER})`);\n // back direction, entering page has a back button\n enteringBackButton.fromTo(OPACITY, 0.01, 1);\n }\n else {\n // entering toolbar, forward direction\n if (!enteringContentHasLargeTitle) {\n enteringTitle\n .fromTo('transform', `translateX(${OFF_RIGHT})`, `translateX(${CENTER})`)\n .fromTo(OPACITY, 0.01, 1);\n }\n enteringToolBarItems.fromTo('transform', `translateX(${OFF_RIGHT})`, `translateX(${CENTER})`);\n enteringToolBarBg.beforeClearStyles([OPACITY, 'transform']);\n const translucentHeader = parentHeader === null || parentHeader === void 0 ? void 0 : parentHeader.translucent;\n if (!translucentHeader) {\n enteringToolBarBg.fromTo(OPACITY, 0.01, 'var(--opacity)');\n }\n else {\n enteringToolBarBg.fromTo('transform', isRTL ? 'translateX(-100%)' : 'translateX(100%)', 'translateX(0px)');\n }\n // forward direction, entering page has a back button\n if (!forward) {\n enteringBackButton.fromTo(OPACITY, 0.01, 1);\n }\n if (backButtonEl && !forward) {\n const enteringBackBtnText = createAnimation();\n enteringBackBtnText\n .addElement(shadow(backButtonEl).querySelector('.button-text')) // REVIEW\n .fromTo(`transform`, isRTL ? 'translateX(-100px)' : 'translateX(100px)', 'translateX(0px)');\n enteringToolBar.addAnimation(enteringBackBtnText);\n }\n }\n });\n // setup leaving view\n if (leavingEl) {\n const leavingContent = createAnimation();\n const leavingContentEl = leavingEl.querySelector(':scope > ion-content');\n const leavingToolBarEls = leavingEl.querySelectorAll(':scope > ion-header > ion-toolbar');\n const leavingHeaderEls = leavingEl.querySelectorAll(':scope > ion-header > *:not(ion-toolbar), :scope > ion-footer > *');\n if (!leavingContentEl && leavingToolBarEls.length === 0 && leavingHeaderEls.length === 0) {\n leavingContent.addElement(leavingEl.querySelector(':scope > .ion-page, :scope > ion-nav, :scope > ion-tabs')); // REVIEW\n }\n else {\n leavingContent.addElement(leavingContentEl); // REVIEW\n leavingContent.addElement(leavingHeaderEls);\n }\n rootAnimation.addAnimation(leavingContent);\n if (backDirection) {\n // leaving content, back direction\n leavingContent\n .beforeClearStyles([OPACITY])\n .fromTo('transform', `translateX(${CENTER})`, isRTL ? 'translateX(-100%)' : 'translateX(100%)');\n const leavingPage = getIonPageElement(leavingEl);\n rootAnimation.afterAddWrite(() => {\n if (rootAnimation.getDirection() === 'normal') {\n leavingPage.style.setProperty('display', 'none');\n }\n });\n }\n else {\n // leaving content, forward direction\n leavingContent\n .fromTo('transform', `translateX(${CENTER})`, `translateX(${OFF_LEFT})`)\n .fromTo(OPACITY, 1, OFF_OPACITY);\n }\n if (leavingContentEl) {\n const leavingTransitionEffectEl = shadow(leavingContentEl).querySelector('.transition-effect');\n if (leavingTransitionEffectEl) {\n const leavingTransitionCoverEl = leavingTransitionEffectEl.querySelector('.transition-cover');\n const leavingTransitionShadowEl = leavingTransitionEffectEl.querySelector('.transition-shadow');\n const leavingTransitionEffect = createAnimation();\n const leavingTransitionCover = createAnimation();\n const leavingTransitionShadow = createAnimation();\n leavingTransitionEffect\n .addElement(leavingTransitionEffectEl)\n .beforeStyles({ opacity: '1', display: 'block' })\n .afterStyles({ opacity: '', display: '' });\n leavingTransitionCover\n .addElement(leavingTransitionCoverEl) // REVIEW\n .beforeClearStyles([OPACITY])\n .fromTo(OPACITY, 0.1, 0);\n leavingTransitionShadow\n .addElement(leavingTransitionShadowEl) // REVIEW\n .beforeClearStyles([OPACITY])\n .fromTo(OPACITY, 0.7, 0.03);\n leavingTransitionEffect.addAnimation([leavingTransitionCover, leavingTransitionShadow]);\n leavingContent.addAnimation([leavingTransitionEffect]);\n }\n }\n leavingToolBarEls.forEach((leavingToolBarEl) => {\n const leavingToolBar = createAnimation();\n leavingToolBar.addElement(leavingToolBarEl);\n const leavingTitle = createAnimation();\n leavingTitle.addElement(leavingToolBarEl.querySelector('ion-title')); // REVIEW\n const leavingToolBarButtons = createAnimation();\n const buttons = leavingToolBarEl.querySelectorAll('ion-buttons,[menuToggle]');\n const parentHeader = leavingToolBarEl.closest('ion-header');\n const inactiveHeader = parentHeader === null || parentHeader === void 0 ? void 0 : parentHeader.classList.contains('header-collapse-condense-inactive');\n const buttonsToAnimate = Array.from(buttons).filter((button) => {\n const isCollapseButton = button.classList.contains('buttons-collapse');\n return (isCollapseButton && !inactiveHeader) || !isCollapseButton;\n });\n leavingToolBarButtons.addElement(buttonsToAnimate);\n const leavingToolBarItems = createAnimation();\n const leavingToolBarItemEls = leavingToolBarEl.querySelectorAll(':scope > *:not(ion-title):not(ion-buttons):not([menuToggle])');\n if (leavingToolBarItemEls.length > 0) {\n leavingToolBarItems.addElement(leavingToolBarItemEls);\n }\n const leavingToolBarBg = createAnimation();\n leavingToolBarBg.addElement(shadow(leavingToolBarEl).querySelector('.toolbar-background')); // REVIEW\n const leavingBackButton = createAnimation();\n const backButtonEl = leavingToolBarEl.querySelector('ion-back-button');\n if (backButtonEl) {\n leavingBackButton.addElement(backButtonEl);\n }\n leavingToolBar.addAnimation([\n leavingTitle,\n leavingToolBarButtons,\n leavingToolBarItems,\n leavingBackButton,\n leavingToolBarBg,\n ]);\n rootAnimation.addAnimation(leavingToolBar);\n // fade out leaving toolbar items\n leavingBackButton.fromTo(OPACITY, 0.99, 0);\n leavingToolBarButtons.fromTo(OPACITY, 0.99, 0);\n leavingToolBarItems.fromTo(OPACITY, 0.99, 0);\n if (backDirection) {\n if (!inactiveHeader) {\n // leaving toolbar, back direction\n leavingTitle\n .fromTo('transform', `translateX(${CENTER})`, isRTL ? 'translateX(-100%)' : 'translateX(100%)')\n .fromTo(OPACITY, 0.99, 0);\n }\n leavingToolBarItems.fromTo('transform', `translateX(${CENTER})`, isRTL ? 'translateX(-100%)' : 'translateX(100%)');\n leavingToolBarBg.beforeClearStyles([OPACITY, 'transform']);\n // leaving toolbar, back direction, and there's no entering toolbar\n // should just slide out, no fading out\n const translucentHeader = parentHeader === null || parentHeader === void 0 ? void 0 : parentHeader.translucent;\n if (!translucentHeader) {\n leavingToolBarBg.fromTo(OPACITY, 'var(--opacity)', 0);\n }\n else {\n leavingToolBarBg.fromTo('transform', 'translateX(0px)', isRTL ? 'translateX(-100%)' : 'translateX(100%)');\n }\n if (backButtonEl && !backward) {\n const leavingBackBtnText = createAnimation();\n leavingBackBtnText\n .addElement(shadow(backButtonEl).querySelector('.button-text')) // REVIEW\n .fromTo('transform', `translateX(${CENTER})`, `translateX(${(isRTL ? -124 : 124) + 'px'})`);\n leavingToolBar.addAnimation(leavingBackBtnText);\n }\n }\n else {\n // leaving toolbar, forward direction\n if (!inactiveHeader) {\n leavingTitle\n .fromTo('transform', `translateX(${CENTER})`, `translateX(${OFF_LEFT})`)\n .fromTo(OPACITY, 0.99, 0)\n .afterClearStyles([TRANSFORM, OPACITY]);\n }\n leavingToolBarItems\n .fromTo('transform', `translateX(${CENTER})`, `translateX(${OFF_LEFT})`)\n .afterClearStyles([TRANSFORM, OPACITY]);\n leavingBackButton.afterClearStyles([OPACITY]);\n leavingTitle.afterClearStyles([OPACITY]);\n leavingToolBarButtons.afterClearStyles([OPACITY]);\n }\n });\n }\n return rootAnimation;\n }\n catch (err) {\n throw err;\n }\n};\n\nexport { iosTransitionAnimation, shadow };\n","/*!\n * (C) Ionic http://ionicframework.com - MIT License\n */\nimport { p as promiseResolve, b as bootstrapLazy } from './index-8e692445.js';\nimport { g as globalScripts } from './app-globals-a49ec076.js';\nimport './ionic-global-c74e4951.js';\n\n/*\n Stencil Client Patch Esm v2.18.0 | MIT Licensed | https://stenciljs.com\n */\nconst patchEsm = () => {\n return promiseResolve();\n};\n\nconst defineCustomElements = (win, options) => {\n if (typeof window === 'undefined') return Promise.resolve();\n return patchEsm().then(() => {\n globalScripts();\n return 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\"overlay-index\\\"],\\\"keyboardClose\\\":[4,\\\"keyboard-close\\\"],\\\"enterAnimation\\\":[16],\\\"leaveAnimation\\\":[16],\\\"buttons\\\":[16],\\\"cssClass\\\":[1,\\\"css-class\\\"],\\\"backdropDismiss\\\":[4,\\\"backdrop-dismiss\\\"],\\\"header\\\":[1],\\\"subHeader\\\":[1,\\\"sub-header\\\"],\\\"translucent\\\":[4],\\\"animated\\\":[4],\\\"htmlAttributes\\\":[16],\\\"present\\\":[64],\\\"dismiss\\\":[64],\\\"onDidDismiss\\\":[64],\\\"onWillDismiss\\\":[64]}]]],[\\\"ion-alert\\\",[[34,\\\"ion-alert\\\",{\\\"overlayIndex\\\":[2,\\\"overlay-index\\\"],\\\"keyboardClose\\\":[4,\\\"keyboard-close\\\"],\\\"enterAnimation\\\":[16],\\\"leaveAnimation\\\":[16],\\\"cssClass\\\":[1,\\\"css-class\\\"],\\\"header\\\":[1],\\\"subHeader\\\":[1,\\\"sub-header\\\"],\\\"message\\\":[1],\\\"buttons\\\":[16],\\\"inputs\\\":[1040],\\\"backdropDismiss\\\":[4,\\\"backdrop-dismiss\\\"],\\\"translucent\\\":[4],\\\"animated\\\":[4],\\\"htmlAttributes\\\":[16],\\\"present\\\":[64],\\\"dismiss\\\":[64],\\\"onDidDismiss\\\":[64],\\\"onWillDismiss\\\":[64]},[[4,\\\"keydown\\\",\\\"onKeydown\\\"]]]]],[\\\"ion-popover\\\",[[33,\\\"ion-popover\\\",{\\\"hasController\\\":[4,\\\"has-controller\\\"],\\\"delegate\\\":[16],\\\"overlayIndex\\\":[2,\\\"overlay-index\\\"],\\\"enterAnimation\\\":[16],\\\"leaveAnimation\\\":[16],\\\"component\\\":[1],\\\"componentProps\\\":[16],\\\"keyboardClose\\\":[4,\\\"keyboard-close\\\"],\\\"cssClass\\\":[1,\\\"css-class\\\"],\\\"backdropDismiss\\\":[4,\\\"backdrop-dismiss\\\"],\\\"event\\\":[8],\\\"showBackdrop\\\":[4,\\\"show-backdrop\\\"],\\\"translucent\\\":[4],\\\"animated\\\":[4],\\\"htmlAttributes\\\":[16],\\\"triggerAction\\\":[1,\\\"trigger-action\\\"],\\\"trigger\\\":[1],\\\"size\\\":[1],\\\"dismissOnSelect\\\":[4,\\\"dismiss-on-select\\\"],\\\"reference\\\":[1],\\\"side\\\":[1],\\\"alignment\\\":[1025],\\\"arrow\\\":[4],\\\"isOpen\\\":[4,\\\"is-open\\\"],\\\"keyboardEvents\\\":[4,\\\"keyboard-events\\\"],\\\"keepContentsMounted\\\":[4,\\\"keep-contents-mounted\\\"],\\\"presented\\\":[32],\\\"presentFromTrigger\\\":[64],\\\"present\\\":[64],\\\"dismiss\\\":[64],\\\"getParentPopover\\\":[64],\\\"onDidDismiss\\\":[64],\\\"onWillDismiss\\\":[64]}]]],[\\\"ion-checkbox\\\",[[33,\\\"ion-checkbox\\\",{\\\"color\\\":[513],\\\"name\\\":[1],\\\"checked\\\":[1028],\\\"indeterminate\\\":[1028],\\\"disabled\\\":[4],\\\"value\\\":[8]}]]],[\\\"ion-select_3\\\",[[33,\\\"ion-select\\\",{\\\"disabled\\\":[4],\\\"cancelText\\\":[1,\\\"cancel-text\\\"],\\\"okText\\\":[1,\\\"ok-text\\\"],\\\"placeholder\\\":[1],\\\"name\\\":[1],\\\"selectedText\\\":[1,\\\"selected-text\\\"],\\\"multiple\\\":[4],\\\"interface\\\":[1],\\\"interfaceOptions\\\":[8,\\\"interface-options\\\"],\\\"compareWith\\\":[1,\\\"compare-with\\\"],\\\"value\\\":[1032],\\\"isExpanded\\\":[32],\\\"open\\\":[64]}],[1,\\\"ion-select-option\\\",{\\\"disabled\\\":[4],\\\"value\\\":[8]}],[34,\\\"ion-select-popover\\\",{\\\"header\\\":[1],\\\"subHeader\\\":[1,\\\"sub-header\\\"],\\\"message\\\":[1],\\\"multiple\\\":[4],\\\"options\\\":[16]},[[0,\\\"ionChange\\\",\\\"onSelect\\\"]]]]],[\\\"ion-app_8\\\",[[0,\\\"ion-app\\\",{\\\"setFocus\\\":[64]}],[1,\\\"ion-content\\\",{\\\"color\\\":[513],\\\"fullscreen\\\":[4],\\\"forceOverscroll\\\":[1028,\\\"force-overscroll\\\"],\\\"scrollX\\\":[4,\\\"scroll-x\\\"],\\\"scrollY\\\":[4,\\\"scroll-y\\\"],\\\"scrollEvents\\\":[4,\\\"scroll-events\\\"],\\\"getScrollElement\\\":[64],\\\"getBackgroundElement\\\":[64],\\\"scrollToTop\\\":[64],\\\"scrollToBottom\\\":[64],\\\"scrollByPoint\\\":[64],\\\"scrollToPoint\\\":[64]},[[8,\\\"appload\\\",\\\"onAppLoad\\\"],[9,\\\"resize\\\",\\\"onResize\\\"]]],[36,\\\"ion-footer\\\",{\\\"collapse\\\":[1],\\\"translucent\\\":[4],\\\"keyboardVisible\\\":[32]}],[36,\\\"ion-header\\\",{\\\"collapse\\\":[1],\\\"translucent\\\":[4]}],[1,\\\"ion-router-outlet\\\",{\\\"mode\\\":[1025],\\\"delegate\\\":[16],\\\"animated\\\":[4],\\\"animation\\\":[16],\\\"swipeHandler\\\":[16],\\\"commit\\\":[64],\\\"setRouteId\\\":[64],\\\"getRouteId\\\":[64]}],[33,\\\"ion-title\\\",{\\\"color\\\":[513],\\\"size\\\":[1]}],[33,\\\"ion-toolbar\\\",{\\\"color\\\":[513]},[[0,\\\"ionStyle\\\",\\\"childrenStyle\\\"]]],[34,\\\"ion-buttons\\\",{\\\"collapse\\\":[4]}]]],[\\\"ion-spinner\\\",[[1,\\\"ion-spinner\\\",{\\\"color\\\":[513],\\\"duration\\\":[2],\\\"name\\\":[1],\\\"paused\\\":[4]}]]],[\\\"ion-item_8\\\",[[33,\\\"ion-item-divider\\\",{\\\"color\\\":[513],\\\"sticky\\\":[4]}],[32,\\\"ion-item-group\\\"],[1,\\\"ion-skeleton-text\\\",{\\\"animated\\\":[4]}],[32,\\\"ion-list\\\",{\\\"lines\\\":[1],\\\"inset\\\":[4],\\\"closeSlidingItems\\\":[64]}],[33,\\\"ion-list-header\\\",{\\\"color\\\":[513],\\\"lines\\\":[1]}],[49,\\\"ion-item\\\",{\\\"color\\\":[513],\\\"button\\\":[4],\\\"detail\\\":[4],\\\"detailIcon\\\":[1,\\\"detail-icon\\\"],\\\"disabled\\\":[4],\\\"download\\\":[1],\\\"fill\\\":[1],\\\"shape\\\":[1],\\\"href\\\":[1],\\\"rel\\\":[1],\\\"lines\\\":[1],\\\"counter\\\":[4],\\\"routerAnimation\\\":[16],\\\"routerDirection\\\":[1,\\\"router-direction\\\"],\\\"target\\\":[1],\\\"type\\\":[1],\\\"counterFormatter\\\":[16],\\\"multipleInputs\\\":[32],\\\"focusable\\\":[32],\\\"counterString\\\":[32]},[[0,\\\"ionChange\\\",\\\"handleIonChange\\\"],[0,\\\"ionColor\\\",\\\"labelColorChanged\\\"],[0,\\\"ionStyle\\\",\\\"itemStyle\\\"]]],[34,\\\"ion-label\\\",{\\\"color\\\":[513],\\\"position\\\":[1],\\\"noAnimate\\\":[32]}],[33,\\\"ion-note\\\",{\\\"color\\\":[513]}]]]]\"), options);\n });\n};\n\nexport { defineCustomElements };\n","/*!\n * (C) Ionic http://ionicframework.com - MIT License\n */\nimport { c as createAnimation } from './animation-4ff3f603.js';\nimport { g as getIonPageElement } from './index-27c7e5c4.js';\nimport './helpers-3b390e48.js';\nimport './index-33ffec25.js';\nimport './index-8e692445.js';\n\nconst mdTransitionAnimation = (_, opts) => {\n var _a, _b, _c;\n const OFF_BOTTOM = '40px';\n const CENTER = '0px';\n const backDirection = opts.direction === 'back';\n const enteringEl = opts.enteringEl;\n const leavingEl = opts.leavingEl;\n const ionPageElement = getIonPageElement(enteringEl);\n const enteringToolbarEle = ionPageElement.querySelector('ion-toolbar');\n const rootTransition = createAnimation();\n rootTransition.addElement(ionPageElement).fill('both').beforeRemoveClass('ion-page-invisible');\n // animate the component itself\n if (backDirection) {\n rootTransition.duration(((_a = opts.duration) !== null && _a !== void 0 ? _a : 0) || 200).easing('cubic-bezier(0.47,0,0.745,0.715)');\n }\n else {\n rootTransition\n .duration(((_b = opts.duration) !== null && _b !== void 0 ? _b : 0) || 280)\n .easing('cubic-bezier(0.36,0.66,0.04,1)')\n .fromTo('transform', `translateY(${OFF_BOTTOM})`, `translateY(${CENTER})`)\n .fromTo('opacity', 0.01, 1);\n }\n // Animate toolbar if it's there\n if (enteringToolbarEle) {\n const enteringToolBar = createAnimation();\n enteringToolBar.addElement(enteringToolbarEle);\n rootTransition.addAnimation(enteringToolBar);\n }\n // setup leaving view\n if (leavingEl && backDirection) {\n // leaving content\n rootTransition.duration(((_c = opts.duration) !== null && _c !== void 0 ? _c : 0) || 200).easing('cubic-bezier(0.47,0,0.745,0.715)');\n const leavingPage = createAnimation();\n leavingPage\n .addElement(getIonPageElement(leavingEl))\n .onFinish((currentStep) => {\n if (currentStep === 1 && leavingPage.elements.length > 0) {\n leavingPage.elements[0].style.setProperty('display', 'none');\n }\n })\n .fromTo('transform', `translateY(${CENTER})`, `translateY(${OFF_BOTTOM})`)\n .fromTo('opacity', 1, 0);\n rootTransition.addAnimation(leavingPage);\n }\n return rootTransition;\n};\n\nexport { mdTransitionAnimation };\n","/*!\n * (C) Ionic http://ionicframework.com - MIT License\n */\nimport { b as getIonMode, c as config } from './ionic-global-c74e4951.js';\nimport { OVERLAY_BACK_BUTTON_PRIORITY } from './hardware-back-button-490df115.js';\nimport { c as componentOnReady, f as focusElement, a as addEventListener, b as removeEventListener, g as getElementRoot } from './helpers-3b390e48.js';\n\nlet lastId = 0;\nconst activeAnimations = new WeakMap();\nconst createController = (tagName) => {\n return {\n create(options) {\n return createOverlay(tagName, options);\n },\n dismiss(data, role, id) {\n return dismissOverlay(document, data, role, tagName, id);\n },\n async getTop() {\n return getOverlay(document, tagName);\n },\n };\n};\nconst alertController = /*@__PURE__*/ createController('ion-alert');\nconst actionSheetController = /*@__PURE__*/ createController('ion-action-sheet');\nconst loadingController = /*@__PURE__*/ createController('ion-loading');\nconst modalController = /*@__PURE__*/ createController('ion-modal');\nconst pickerController = /*@__PURE__*/ createController('ion-picker');\nconst popoverController = /*@__PURE__*/ createController('ion-popover');\nconst toastController = /*@__PURE__*/ createController('ion-toast');\nconst prepareOverlay = (el) => {\n if (typeof document !== 'undefined') {\n connectListeners(document);\n }\n const overlayIndex = lastId++;\n el.overlayIndex = overlayIndex;\n if (!el.hasAttribute('id')) {\n el.id = `ion-overlay-${overlayIndex}`;\n }\n};\nconst createOverlay = (tagName, opts) => {\n if (typeof window !== 'undefined' && typeof window.customElements !== 'undefined') {\n return window.customElements.whenDefined(tagName).then(() => {\n const element = document.createElement(tagName);\n element.classList.add('overlay-hidden');\n /**\n * Convert the passed in overlay options into props\n * that get passed down into the new overlay.\n */\n Object.assign(element, Object.assign(Object.assign({}, opts), { hasController: true }));\n // append the overlay element to the document body\n getAppRoot(document).appendChild(element);\n return new Promise((resolve) => componentOnReady(element, resolve));\n });\n }\n return Promise.resolve();\n};\n/**\n * This query string selects elements that\n * are eligible to receive focus. We select\n * interactive elements that meet the following\n * criteria:\n * 1. Element does not have a negative tabindex\n * 2. Element does not have `hidden`\n * 3. Element does not have `disabled` for non-Ionic components.\n * 4. Element does not have `disabled` or `disabled=\"true\"` for Ionic components.\n * Note: We need this distinction because `disabled=\"false\"` is\n * valid usage for the disabled property on ion-button.\n */\nconst focusableQueryString = '[tabindex]:not([tabindex^=\"-\"]):not([hidden]):not([disabled]), input:not([type=hidden]):not([tabindex^=\"-\"]):not([hidden]):not([disabled]), textarea:not([tabindex^=\"-\"]):not([hidden]):not([disabled]), button:not([tabindex^=\"-\"]):not([hidden]):not([disabled]), select:not([tabindex^=\"-\"]):not([hidden]):not([disabled]), .ion-focusable:not([tabindex^=\"-\"]):not([hidden]):not([disabled]), .ion-focusable[disabled=\"false\"]:not([tabindex^=\"-\"]):not([hidden])';\nconst focusFirstDescendant = (ref, overlay) => {\n let firstInput = ref.querySelector(focusableQueryString);\n const shadowRoot = firstInput === null || firstInput === void 0 ? void 0 : firstInput.shadowRoot;\n if (shadowRoot) {\n // If there are no inner focusable elements, just focus the host element.\n firstInput = shadowRoot.querySelector(focusableQueryString) || firstInput;\n }\n if (firstInput) {\n focusElement(firstInput);\n }\n else {\n // Focus overlay instead of letting focus escape\n overlay.focus();\n }\n};\nconst isOverlayHidden = (overlay) => overlay.classList.contains('overlay-hidden');\nconst focusLastDescendant = (ref, overlay) => {\n const inputs = Array.from(ref.querySelectorAll(focusableQueryString));\n let lastInput = inputs.length > 0 ? inputs[inputs.length - 1] : null;\n const shadowRoot = lastInput === null || lastInput === void 0 ? void 0 : lastInput.shadowRoot;\n if (shadowRoot) {\n // If there are no inner focusable elements, just focus the host element.\n lastInput = shadowRoot.querySelector(focusableQueryString) || lastInput;\n }\n if (lastInput) {\n lastInput.focus();\n }\n else {\n // Focus overlay instead of letting focus escape\n overlay.focus();\n }\n};\n/**\n * Traps keyboard focus inside of overlay components.\n * Based on https://w3c.github.io/aria-practices/examples/dialog-modal/alertdialog.html\n * This includes the following components: Action Sheet, Alert, Loading, Modal,\n * Picker, and Popover.\n * Should NOT include: Toast\n */\nconst trapKeyboardFocus = (ev, doc) => {\n const lastOverlay = getOverlay(doc, 'ion-alert,ion-action-sheet,ion-loading,ion-modal,ion-picker,ion-popover');\n const target = ev.target;\n /**\n * If no active overlay, ignore this event.\n *\n * If this component uses the shadow dom,\n * this global listener is pointless\n * since it will not catch the focus\n * traps as they are inside the shadow root.\n * We need to add a listener to the shadow root\n * itself to ensure the focus trap works.\n */\n if (!lastOverlay || !target) {\n return;\n }\n /**\n * If the ion-disable-focus-trap class\n * is present on an overlay, then this component\n * instance has opted out of focus trapping.\n * An example of this is when the sheet modal\n * has a backdrop that is disabled. The content\n * behind the sheet should be focusable until\n * the backdrop is enabled.\n */\n if (lastOverlay.classList.contains('ion-disable-focus-trap')) {\n return;\n }\n const trapScopedFocus = () => {\n /**\n * If we are focusing the overlay, clear\n * the last focused element so that hitting\n * tab activates the first focusable element\n * in the overlay wrapper.\n */\n if (lastOverlay === target) {\n lastOverlay.lastFocus = undefined;\n /**\n * Otherwise, we must be focusing an element\n * inside of the overlay. The two possible options\n * here are an input/button/etc or the ion-focus-trap\n * element. The focus trap element is used to prevent\n * the keyboard focus from leaving the overlay when\n * using Tab or screen assistants.\n */\n }\n else {\n /**\n * We do not want to focus the traps, so get the overlay\n * wrapper element as the traps live outside of the wrapper.\n */\n const overlayRoot = getElementRoot(lastOverlay);\n if (!overlayRoot.contains(target)) {\n return;\n }\n const overlayWrapper = overlayRoot.querySelector('.ion-overlay-wrapper');\n if (!overlayWrapper) {\n return;\n }\n /**\n * If the target is inside the wrapper, let the browser\n * focus as normal and keep a log of the last focused element.\n */\n if (overlayWrapper.contains(target)) {\n lastOverlay.lastFocus = target;\n }\n else {\n /**\n * Otherwise, we must have focused one of the focus traps.\n * We need to wrap the focus to either the first element\n * or the last element.\n */\n /**\n * Once we call `focusFirstDescendant` and focus the first\n * descendant, another focus event will fire which will\n * cause `lastOverlay.lastFocus` to be updated before\n * we can run the code after that. We will cache the value\n * here to avoid that.\n */\n const lastFocus = lastOverlay.lastFocus;\n // Focus the first element in the overlay wrapper\n focusFirstDescendant(overlayWrapper, lastOverlay);\n /**\n * If the cached last focused element is the\n * same as the active element, then we need\n * to wrap focus to the last descendant. This happens\n * when the first descendant is focused, and the user\n * presses Shift + Tab. The previous line will focus\n * the same descendant again (the first one), causing\n * last focus to equal the active element.\n */\n if (lastFocus === doc.activeElement) {\n focusLastDescendant(overlayWrapper, lastOverlay);\n }\n lastOverlay.lastFocus = doc.activeElement;\n }\n }\n };\n const trapShadowFocus = () => {\n /**\n * If the target is inside the wrapper, let the browser\n * focus as normal and keep a log of the last focused element.\n */\n if (lastOverlay.contains(target)) {\n lastOverlay.lastFocus = target;\n }\n else {\n /**\n * Otherwise, we are about to have focus\n * go out of the overlay. We need to wrap\n * the focus to either the first element\n * or the last element.\n */\n /**\n * Once we call `focusFirstDescendant` and focus the first\n * descendant, another focus event will fire which will\n * cause `lastOverlay.lastFocus` to be updated before\n * we can run the code after that. We will cache the value\n * here to avoid that.\n */\n const lastFocus = lastOverlay.lastFocus;\n // Focus the first element in the overlay wrapper\n focusFirstDescendant(lastOverlay, lastOverlay);\n /**\n * If the cached last focused element is the\n * same as the active element, then we need\n * to wrap focus to the last descendant. This happens\n * when the first descendant is focused, and the user\n * presses Shift + Tab. The previous line will focus\n * the same descendant again (the first one), causing\n * last focus to equal the active element.\n */\n if (lastFocus === doc.activeElement) {\n focusLastDescendant(lastOverlay, lastOverlay);\n }\n lastOverlay.lastFocus = doc.activeElement;\n }\n };\n if (lastOverlay.shadowRoot) {\n trapShadowFocus();\n }\n else {\n trapScopedFocus();\n }\n};\nconst connectListeners = (doc) => {\n if (lastId === 0) {\n lastId = 1;\n doc.addEventListener('focus', (ev) => {\n trapKeyboardFocus(ev, doc);\n }, true);\n // handle back-button click\n doc.addEventListener('ionBackButton', (ev) => {\n const lastOverlay = getOverlay(doc);\n if (lastOverlay === null || lastOverlay === void 0 ? void 0 : lastOverlay.backdropDismiss) {\n ev.detail.register(OVERLAY_BACK_BUTTON_PRIORITY, () => {\n return lastOverlay.dismiss(undefined, BACKDROP);\n });\n }\n });\n // handle ESC to close overlay\n doc.addEventListener('keyup', (ev) => {\n if (ev.key === 'Escape') {\n const lastOverlay = getOverlay(doc);\n if (lastOverlay === null || lastOverlay === void 0 ? void 0 : lastOverlay.backdropDismiss) {\n lastOverlay.dismiss(undefined, BACKDROP);\n }\n }\n });\n }\n};\nconst dismissOverlay = (doc, data, role, overlayTag, id) => {\n const overlay = getOverlay(doc, overlayTag, id);\n if (!overlay) {\n return Promise.reject('overlay does not exist');\n }\n return overlay.dismiss(data, role);\n};\nconst getOverlays = (doc, selector) => {\n if (selector === undefined) {\n selector = 'ion-alert,ion-action-sheet,ion-loading,ion-modal,ion-picker,ion-popover,ion-toast';\n }\n return Array.from(doc.querySelectorAll(selector)).filter((c) => c.overlayIndex > 0);\n};\n/**\n * Returns an overlay element\n * @param doc The document to find the element within.\n * @param overlayTag The selector for the overlay, defaults to Ionic overlay components.\n * @param id The unique identifier for the overlay instance.\n * @returns The overlay element or `undefined` if no overlay element is found.\n */\nconst getOverlay = (doc, overlayTag, id) => {\n const overlays = getOverlays(doc, overlayTag).filter((o) => !isOverlayHidden(o));\n return id === undefined ? overlays[overlays.length - 1] : overlays.find((o) => o.id === id);\n};\n/**\n * When an overlay is presented, the main\n * focus is the overlay not the page content.\n * We need to remove the page content from the\n * accessibility tree otherwise when\n * users use \"read screen from top\" gestures with\n * TalkBack and VoiceOver, the screen reader will begin\n * to read the content underneath the overlay.\n *\n * We need a container where all page components\n * exist that is separate from where the overlays\n * are added in the DOM. For most apps, this element\n * is the top most ion-router-outlet. In the event\n * that devs are not using a router,\n * they will need to add the \"ion-view-container-root\"\n * id to the element that contains all of their views.\n *\n * TODO: If Framework supports having multiple top\n * level router outlets we would need to update this.\n * Example: One outlet for side menu and one outlet\n * for main content.\n */\nconst setRootAriaHidden = (hidden = false) => {\n const root = getAppRoot(document);\n const viewContainer = root.querySelector('ion-router-outlet, ion-nav, #ion-view-container-root');\n if (!viewContainer) {\n return;\n }\n if (hidden) {\n viewContainer.setAttribute('aria-hidden', 'true');\n }\n else {\n viewContainer.removeAttribute('aria-hidden');\n }\n};\nconst present = async (overlay, name, iosEnterAnimation, mdEnterAnimation, opts) => {\n var _a, _b;\n if (overlay.presented) {\n return;\n }\n setRootAriaHidden(true);\n overlay.presented = true;\n overlay.willPresent.emit();\n (_a = overlay.willPresentShorthand) === null || _a === void 0 ? void 0 : _a.emit();\n const mode = getIonMode(overlay);\n // get the user's animation fn if one was provided\n const animationBuilder = overlay.enterAnimation\n ? overlay.enterAnimation\n : config.get(name, mode === 'ios' ? iosEnterAnimation : mdEnterAnimation);\n const completed = await overlayAnimation(overlay, animationBuilder, overlay.el, opts);\n if (completed) {\n overlay.didPresent.emit();\n (_b = overlay.didPresentShorthand) === null || _b === void 0 ? void 0 : _b.emit();\n }\n /**\n * When an overlay that steals focus\n * is dismissed, focus should be returned\n * to the element that was focused\n * prior to the overlay opening. Toast\n * does not steal focus and is excluded\n * from returning focus as a result.\n */\n if (overlay.el.tagName !== 'ION-TOAST') {\n focusPreviousElementOnDismiss(overlay.el);\n }\n /**\n * If the focused element is already\n * inside the overlay component then\n * focus should not be moved from that\n * to the overlay container.\n */\n if (overlay.keyboardClose && (document.activeElement === null || !overlay.el.contains(document.activeElement))) {\n overlay.el.focus();\n }\n};\n/**\n * When an overlay component is dismissed,\n * focus should be returned to the element\n * that presented the overlay. Otherwise\n * focus will be set on the body which\n * means that people using screen readers\n * or tabbing will need to re-navigate\n * to where they were before they\n * opened the overlay.\n */\nconst focusPreviousElementOnDismiss = async (overlayEl) => {\n let previousElement = document.activeElement;\n if (!previousElement) {\n return;\n }\n const shadowRoot = previousElement === null || previousElement === void 0 ? void 0 : previousElement.shadowRoot;\n if (shadowRoot) {\n // If there are no inner focusable elements, just focus the host element.\n previousElement = shadowRoot.querySelector(focusableQueryString) || previousElement;\n }\n await overlayEl.onDidDismiss();\n previousElement.focus();\n};\nconst dismiss = async (overlay, data, role, name, iosLeaveAnimation, mdLeaveAnimation, opts) => {\n var _a, _b;\n if (!overlay.presented) {\n return false;\n }\n setRootAriaHidden(false);\n overlay.presented = false;\n try {\n // Overlay contents should not be clickable during dismiss\n overlay.el.style.setProperty('pointer-events', 'none');\n overlay.willDismiss.emit({ data, role });\n (_a = overlay.willDismissShorthand) === null || _a === void 0 ? void 0 : _a.emit({ data, role });\n const mode = getIonMode(overlay);\n const animationBuilder = overlay.leaveAnimation\n ? overlay.leaveAnimation\n : config.get(name, mode === 'ios' ? iosLeaveAnimation : mdLeaveAnimation);\n // If dismissed via gesture, no need to play leaving animation again\n if (role !== GESTURE) {\n await overlayAnimation(overlay, animationBuilder, overlay.el, opts);\n }\n overlay.didDismiss.emit({ data, role });\n (_b = overlay.didDismissShorthand) === null || _b === void 0 ? void 0 : _b.emit({ data, role });\n activeAnimations.delete(overlay);\n /**\n * Make overlay hidden again in case it is being reused.\n * We can safely remove pointer-events: none as\n * overlay-hidden will set display: none.\n */\n overlay.el.classList.add('overlay-hidden');\n overlay.el.style.removeProperty('pointer-events');\n /**\n * Clear any focus trapping references\n * when the overlay is dismissed.\n */\n if (overlay.el.lastFocus !== undefined) {\n overlay.el.lastFocus = undefined;\n }\n }\n catch (err) {\n console.error(err);\n }\n overlay.el.remove();\n return true;\n};\nconst getAppRoot = (doc) => {\n return doc.querySelector('ion-app') || doc.body;\n};\nconst overlayAnimation = async (overlay, animationBuilder, baseEl, opts) => {\n // Make overlay visible in case it's hidden\n baseEl.classList.remove('overlay-hidden');\n const aniRoot = overlay.el;\n const animation = animationBuilder(aniRoot, opts);\n if (!overlay.animated || !config.getBoolean('animated', true)) {\n animation.duration(0);\n }\n if (overlay.keyboardClose) {\n animation.beforeAddWrite(() => {\n const activeElement = baseEl.ownerDocument.activeElement;\n if (activeElement === null || activeElement === void 0 ? void 0 : activeElement.matches('input,ion-input, ion-textarea')) {\n activeElement.blur();\n }\n });\n }\n const activeAni = activeAnimations.get(overlay) || [];\n activeAnimations.set(overlay, [...activeAni, animation]);\n await animation.play();\n return true;\n};\nconst eventMethod = (element, eventName) => {\n let resolve;\n const promise = new Promise((r) => (resolve = r));\n onceEvent(element, eventName, (event) => {\n resolve(event.detail);\n });\n return promise;\n};\nconst onceEvent = (element, eventName, callback) => {\n const handler = (ev) => {\n removeEventListener(element, eventName, handler);\n callback(ev);\n };\n addEventListener(element, eventName, handler);\n};\nconst isCancel = (role) => {\n return role === 'cancel' || role === BACKDROP;\n};\nconst defaultGate = (h) => h();\n/**\n * Calls a developer provided method while avoiding\n * Angular Zones. Since the handler is provided by\n * the developer, we should throw any errors\n * received so that developer-provided bug\n * tracking software can log it.\n */\nconst safeCall = (handler, arg) => {\n if (typeof handler === 'function') {\n const jmp = config.get('_zoneGate', defaultGate);\n return jmp(() => {\n try {\n return handler(arg);\n }\n catch (e) {\n throw e;\n }\n });\n }\n return undefined;\n};\nconst BACKDROP = 'backdrop';\nconst GESTURE = 'gesture';\n\nexport { BACKDROP as B, GESTURE as G, alertController as a, actionSheetController as b, popoverController as c, present as d, prepareOverlay as e, dismiss as f, eventMethod as g, activeAnimations as h, isCancel as i, focusFirstDescendant as j, getOverlay as k, loadingController as l, modalController as m, pickerController as p, safeCall as s, toastController as t };\n","export function applyPolyfills() {\n var promises = [];\n if (typeof window !== 'undefined') {\n var win = window;\n\n if (!win.customElements ||\n (win.Element && (!win.Element.prototype.closest || !win.Element.prototype.matches || !win.Element.prototype.remove || !win.Element.prototype.getRootNode))) {\n promises.push(import(/* webpackChunkName: \"polyfills-dom\" */ './dom.js'));\n }\n\n var checkIfURLIsSupported = function() {\n try {\n var u = new URL('b', 'http://a');\n u.pathname = 'c%20d';\n return (u.href === 'http://a/c%20d') && u.searchParams;\n } catch (e) {\n return false;\n }\n };\n\n if (\n 'function' !== typeof Object.assign || !Object.entries ||\n !Array.prototype.find || !Array.prototype.includes ||\n !String.prototype.startsWith || !String.prototype.endsWith ||\n (win.NodeList && !win.NodeList.prototype.forEach) ||\n !win.fetch ||\n !checkIfURLIsSupported() ||\n typeof WeakMap == 'undefined'\n ) {\n promises.push(import(/* webpackChunkName: \"polyfills-core-js\" */ './core-js.js'));\n }\n }\n return Promise.all(promises);\n}\n","/*!\n * (C) Ionic http://ionicframework.com - MIT License\n */\nexport * from '../dist/esm/polyfills/index.js';\nexport * from '../dist/esm/loader.js';\n","import LocalForage from 'localforage';\n/** @hidden */\nexport const Drivers = {\n SecureStorage: 'ionicSecureStorage',\n IndexedDB: LocalForage.INDEXEDDB,\n LocalStorage: LocalForage.LOCALSTORAGE\n};\nconst defaultConfig = {\n name: '_ionicstorage',\n storeName: '_ionickv',\n dbKey: '_ionickey',\n driverOrder: [\n Drivers.SecureStorage,\n Drivers.IndexedDB,\n Drivers.LocalStorage\n ]\n};\nexport class Storage {\n /**\n * Create a new Storage instance using the order of drivers and any additional config\n * options to pass to LocalForage.\n *\n * Possible default driverOrder options are: ['indexeddb', 'localstorage'] and the\n * default is that exact ordering.\n *\n * When using Ionic Secure Storage (enterprise only), use ['ionicSecureStorage', 'indexeddb', 'localstorage'] to ensure\n * Secure Storage is used when available, or fall back to IndexedDB or LocalStorage on the web.\n */\n constructor(config = defaultConfig) {\n this._db = null;\n this._secureStorageDriver = null;\n const actualConfig = Object.assign({}, defaultConfig, config || {});\n this._config = actualConfig;\n }\n async create() {\n const db = LocalForage.createInstance(this._config);\n this._db = db;\n await db.setDriver(this._config.driverOrder || []);\n return this;\n }\n /**\n * Define a new Driver. Must be called before\n * initializing the database. Example:\n *\n * await storage.defineDriver(myDriver);\n * await storage.create();\n */\n async defineDriver(driver) {\n if (driver._driver === Drivers.SecureStorage) {\n this._secureStorageDriver = driver;\n }\n return LocalForage.defineDriver(driver);\n }\n /**\n * Get the name of the driver being used.\n * @returns Name of the driver\n */\n get driver() {\n var _a;\n return ((_a = this._db) === null || _a === void 0 ? void 0 : _a.driver()) || null;\n }\n assertDb() {\n if (!this._db) {\n throw new Error('Database not created. Must call create() first');\n }\n return this._db;\n }\n /**\n * Get the value associated with the given key.\n * @param key the key to identify this value\n * @returns Returns a promise with the value of the given key\n */\n get(key) {\n const db = this.assertDb();\n return db.getItem(key);\n }\n /**\n * Set the value for the given key.\n * @param key the key to identify this value\n * @param value the value for this key\n * @returns Returns a promise that resolves when the key and value are set\n */\n set(key, value) {\n const db = this.assertDb();\n return db.setItem(key, value);\n }\n /**\n * Remove any value associated with this key.\n * @param key the key to identify this value\n * @returns Returns a promise that resolves when the value is removed\n */\n remove(key) {\n const db = this.assertDb();\n return db.removeItem(key);\n }\n /**\n * Clear the entire key value store. WARNING: HOT!\n * @returns Returns a promise that resolves when the store is cleared\n */\n clear() {\n const db = this.assertDb();\n return db.clear();\n }\n /**\n * @returns Returns a promise that resolves with the number of keys stored.\n */\n length() {\n const db = this.assertDb();\n return db.length();\n }\n /**\n * @returns Returns a promise that resolves with the keys in the store.\n */\n keys() {\n const db = this.assertDb();\n return db.keys();\n }\n /**\n * Iterate through each key,value pair.\n * @param iteratorCallback a callback of the form (value, key, iterationNumber)\n * @returns Returns a promise that resolves when the iteration has finished.\n */\n forEach(iteratorCallback) {\n const db = this.assertDb();\n return db.iterate(iteratorCallback);\n }\n setEncryptionKey(key) {\n var _a;\n if (!this._secureStorageDriver) {\n throw new Error('@ionic-enterprise/secure-storage not installed. Encryption support not available');\n }\n else {\n (_a = this._secureStorageDriver) === null || _a === void 0 ? void 0 : _a.setEncryptionKey(key);\n }\n }\n}\n","module.exports = function atoa (a, n) { return Array.prototype.slice.call(a, n); }\n","/*!\n * Chart.js v2.9.4\n * https://www.chartjs.org\n * (c) 2020 Chart.js Contributors\n * Released under the MIT License\n */\n(function (global, factory) {\ntypeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory(function() { try { return require('moment'); } catch(e) { } }()) :\ntypeof define === 'function' && define.amd ? define(['require'], function(require) { return factory(function() { try { return require('moment'); } catch(e) { } }()); }) :\n(global = global || self, global.Chart = factory(global.moment));\n}(this, (function (moment) { 'use strict';\n\nmoment = moment && moment.hasOwnProperty('default') ? moment['default'] : moment;\n\nfunction createCommonjsModule(fn, module) {\n\treturn module = { exports: {} }, fn(module, module.exports), module.exports;\n}\n\nfunction getCjsExportFromNamespace (n) {\n\treturn n && n['default'] || n;\n}\n\nvar colorName = {\r\n\t\"aliceblue\": [240, 248, 255],\r\n\t\"antiquewhite\": [250, 235, 215],\r\n\t\"aqua\": [0, 255, 255],\r\n\t\"aquamarine\": [127, 255, 212],\r\n\t\"azure\": [240, 255, 255],\r\n\t\"beige\": [245, 245, 220],\r\n\t\"bisque\": [255, 228, 196],\r\n\t\"black\": [0, 0, 0],\r\n\t\"blanchedalmond\": [255, 235, 205],\r\n\t\"blue\": [0, 0, 255],\r\n\t\"blueviolet\": [138, 43, 226],\r\n\t\"brown\": [165, 42, 42],\r\n\t\"burlywood\": [222, 184, 135],\r\n\t\"cadetblue\": [95, 158, 160],\r\n\t\"chartreuse\": [127, 255, 0],\r\n\t\"chocolate\": [210, 105, 30],\r\n\t\"coral\": [255, 127, 80],\r\n\t\"cornflowerblue\": [100, 149, 237],\r\n\t\"cornsilk\": [255, 248, 220],\r\n\t\"crimson\": [220, 20, 60],\r\n\t\"cyan\": [0, 255, 255],\r\n\t\"darkblue\": [0, 0, 139],\r\n\t\"darkcyan\": [0, 139, 139],\r\n\t\"darkgoldenrod\": [184, 134, 11],\r\n\t\"darkgray\": [169, 169, 169],\r\n\t\"darkgreen\": [0, 100, 0],\r\n\t\"darkgrey\": [169, 169, 169],\r\n\t\"darkkhaki\": [189, 183, 107],\r\n\t\"darkmagenta\": [139, 0, 139],\r\n\t\"darkolivegreen\": [85, 107, 47],\r\n\t\"darkorange\": [255, 140, 0],\r\n\t\"darkorchid\": [153, 50, 204],\r\n\t\"darkred\": [139, 0, 0],\r\n\t\"darksalmon\": [233, 150, 122],\r\n\t\"darkseagreen\": [143, 188, 143],\r\n\t\"darkslateblue\": [72, 61, 139],\r\n\t\"darkslategray\": [47, 79, 79],\r\n\t\"darkslategrey\": [47, 79, 79],\r\n\t\"darkturquoise\": [0, 206, 209],\r\n\t\"darkviolet\": [148, 0, 211],\r\n\t\"deeppink\": [255, 20, 147],\r\n\t\"deepskyblue\": [0, 191, 255],\r\n\t\"dimgray\": [105, 105, 105],\r\n\t\"dimgrey\": [105, 105, 105],\r\n\t\"dodgerblue\": [30, 144, 255],\r\n\t\"firebrick\": [178, 34, 34],\r\n\t\"floralwhite\": [255, 250, 240],\r\n\t\"forestgreen\": [34, 139, 34],\r\n\t\"fuchsia\": [255, 0, 255],\r\n\t\"gainsboro\": [220, 220, 220],\r\n\t\"ghostwhite\": [248, 248, 255],\r\n\t\"gold\": [255, 215, 0],\r\n\t\"goldenrod\": [218, 165, 32],\r\n\t\"gray\": [128, 128, 128],\r\n\t\"green\": [0, 128, 0],\r\n\t\"greenyellow\": [173, 255, 47],\r\n\t\"grey\": [128, 128, 128],\r\n\t\"honeydew\": [240, 255, 240],\r\n\t\"hotpink\": [255, 105, 180],\r\n\t\"indianred\": [205, 92, 92],\r\n\t\"indigo\": [75, 0, 130],\r\n\t\"ivory\": [255, 255, 240],\r\n\t\"khaki\": [240, 230, 140],\r\n\t\"lavender\": [230, 230, 250],\r\n\t\"lavenderblush\": [255, 240, 245],\r\n\t\"lawngreen\": [124, 252, 0],\r\n\t\"lemonchiffon\": [255, 250, 205],\r\n\t\"lightblue\": [173, 216, 230],\r\n\t\"lightcoral\": [240, 128, 128],\r\n\t\"lightcyan\": [224, 255, 255],\r\n\t\"lightgoldenrodyellow\": [250, 250, 210],\r\n\t\"lightgray\": [211, 211, 211],\r\n\t\"lightgreen\": [144, 238, 144],\r\n\t\"lightgrey\": [211, 211, 211],\r\n\t\"lightpink\": [255, 182, 193],\r\n\t\"lightsalmon\": [255, 160, 122],\r\n\t\"lightseagreen\": [32, 178, 170],\r\n\t\"lightskyblue\": [135, 206, 250],\r\n\t\"lightslategray\": [119, 136, 153],\r\n\t\"lightslategrey\": [119, 136, 153],\r\n\t\"lightsteelblue\": [176, 196, 222],\r\n\t\"lightyellow\": [255, 255, 224],\r\n\t\"lime\": [0, 255, 0],\r\n\t\"limegreen\": [50, 205, 50],\r\n\t\"linen\": [250, 240, 230],\r\n\t\"magenta\": [255, 0, 255],\r\n\t\"maroon\": [128, 0, 0],\r\n\t\"mediumaquamarine\": [102, 205, 170],\r\n\t\"mediumblue\": [0, 0, 205],\r\n\t\"mediumorchid\": [186, 85, 211],\r\n\t\"mediumpurple\": [147, 112, 219],\r\n\t\"mediumseagreen\": [60, 179, 113],\r\n\t\"mediumslateblue\": [123, 104, 238],\r\n\t\"mediumspringgreen\": [0, 250, 154],\r\n\t\"mediumturquoise\": [72, 209, 204],\r\n\t\"mediumvioletred\": [199, 21, 133],\r\n\t\"midnightblue\": [25, 25, 112],\r\n\t\"mintcream\": [245, 255, 250],\r\n\t\"mistyrose\": [255, 228, 225],\r\n\t\"moccasin\": [255, 228, 181],\r\n\t\"navajowhite\": [255, 222, 173],\r\n\t\"navy\": [0, 0, 128],\r\n\t\"oldlace\": [253, 245, 230],\r\n\t\"olive\": [128, 128, 0],\r\n\t\"olivedrab\": [107, 142, 35],\r\n\t\"orange\": [255, 165, 0],\r\n\t\"orangered\": [255, 69, 0],\r\n\t\"orchid\": [218, 112, 214],\r\n\t\"palegoldenrod\": [238, 232, 170],\r\n\t\"palegreen\": [152, 251, 152],\r\n\t\"paleturquoise\": [175, 238, 238],\r\n\t\"palevioletred\": [219, 112, 147],\r\n\t\"papayawhip\": [255, 239, 213],\r\n\t\"peachpuff\": [255, 218, 185],\r\n\t\"peru\": [205, 133, 63],\r\n\t\"pink\": [255, 192, 203],\r\n\t\"plum\": [221, 160, 221],\r\n\t\"powderblue\": [176, 224, 230],\r\n\t\"purple\": [128, 0, 128],\r\n\t\"rebeccapurple\": [102, 51, 153],\r\n\t\"red\": [255, 0, 0],\r\n\t\"rosybrown\": [188, 143, 143],\r\n\t\"royalblue\": [65, 105, 225],\r\n\t\"saddlebrown\": [139, 69, 19],\r\n\t\"salmon\": [250, 128, 114],\r\n\t\"sandybrown\": [244, 164, 96],\r\n\t\"seagreen\": [46, 139, 87],\r\n\t\"seashell\": [255, 245, 238],\r\n\t\"sienna\": [160, 82, 45],\r\n\t\"silver\": [192, 192, 192],\r\n\t\"skyblue\": [135, 206, 235],\r\n\t\"slateblue\": [106, 90, 205],\r\n\t\"slategray\": [112, 128, 144],\r\n\t\"slategrey\": [112, 128, 144],\r\n\t\"snow\": [255, 250, 250],\r\n\t\"springgreen\": [0, 255, 127],\r\n\t\"steelblue\": [70, 130, 180],\r\n\t\"tan\": [210, 180, 140],\r\n\t\"teal\": [0, 128, 128],\r\n\t\"thistle\": [216, 191, 216],\r\n\t\"tomato\": [255, 99, 71],\r\n\t\"turquoise\": [64, 224, 208],\r\n\t\"violet\": [238, 130, 238],\r\n\t\"wheat\": [245, 222, 179],\r\n\t\"white\": [255, 255, 255],\r\n\t\"whitesmoke\": [245, 245, 245],\r\n\t\"yellow\": [255, 255, 0],\r\n\t\"yellowgreen\": [154, 205, 50]\r\n};\n\nvar conversions = createCommonjsModule(function (module) {\n/* MIT license */\n\n\n// NOTE: conversions should only return primitive values (i.e. arrays, or\n// values that give correct `typeof` results).\n// do not use box values types (i.e. Number(), String(), etc.)\n\nvar reverseKeywords = {};\nfor (var key in colorName) {\n\tif (colorName.hasOwnProperty(key)) {\n\t\treverseKeywords[colorName[key]] = key;\n\t}\n}\n\nvar convert = module.exports = {\n\trgb: {channels: 3, labels: 'rgb'},\n\thsl: {channels: 3, labels: 'hsl'},\n\thsv: {channels: 3, labels: 'hsv'},\n\thwb: {channels: 3, labels: 'hwb'},\n\tcmyk: {channels: 4, labels: 'cmyk'},\n\txyz: {channels: 3, labels: 'xyz'},\n\tlab: {channels: 3, labels: 'lab'},\n\tlch: {channels: 3, labels: 'lch'},\n\thex: {channels: 1, labels: ['hex']},\n\tkeyword: {channels: 1, labels: ['keyword']},\n\tansi16: {channels: 1, labels: ['ansi16']},\n\tansi256: {channels: 1, labels: ['ansi256']},\n\thcg: {channels: 3, labels: ['h', 'c', 'g']},\n\tapple: {channels: 3, labels: ['r16', 'g16', 'b16']},\n\tgray: {channels: 1, labels: ['gray']}\n};\n\n// hide .channels and .labels properties\nfor (var model in convert) {\n\tif (convert.hasOwnProperty(model)) {\n\t\tif (!('channels' in convert[model])) {\n\t\t\tthrow new Error('missing channels property: ' + model);\n\t\t}\n\n\t\tif (!('labels' in convert[model])) {\n\t\t\tthrow new Error('missing channel labels property: ' + model);\n\t\t}\n\n\t\tif (convert[model].labels.length !== convert[model].channels) {\n\t\t\tthrow new Error('channel and label counts mismatch: ' + model);\n\t\t}\n\n\t\tvar channels = convert[model].channels;\n\t\tvar labels = convert[model].labels;\n\t\tdelete convert[model].channels;\n\t\tdelete convert[model].labels;\n\t\tObject.defineProperty(convert[model], 'channels', {value: channels});\n\t\tObject.defineProperty(convert[model], 'labels', {value: labels});\n\t}\n}\n\nconvert.rgb.hsl = function (rgb) {\n\tvar r = rgb[0] / 255;\n\tvar g = rgb[1] / 255;\n\tvar b = rgb[2] / 255;\n\tvar min = Math.min(r, g, b);\n\tvar max = Math.max(r, g, b);\n\tvar delta = max - min;\n\tvar h;\n\tvar s;\n\tvar l;\n\n\tif (max === min) {\n\t\th = 0;\n\t} else if (r === max) {\n\t\th = (g - b) / delta;\n\t} else if (g === max) {\n\t\th = 2 + (b - r) / delta;\n\t} else if (b === max) {\n\t\th = 4 + (r - g) / delta;\n\t}\n\n\th = Math.min(h * 60, 360);\n\n\tif (h < 0) {\n\t\th += 360;\n\t}\n\n\tl = (min + max) / 2;\n\n\tif (max === min) {\n\t\ts = 0;\n\t} else if (l <= 0.5) {\n\t\ts = delta / (max + min);\n\t} else {\n\t\ts = delta / (2 - max - min);\n\t}\n\n\treturn [h, s * 100, l * 100];\n};\n\nconvert.rgb.hsv = function (rgb) {\n\tvar rdif;\n\tvar gdif;\n\tvar bdif;\n\tvar h;\n\tvar s;\n\n\tvar r = rgb[0] / 255;\n\tvar g = rgb[1] / 255;\n\tvar b = rgb[2] / 255;\n\tvar v = Math.max(r, g, b);\n\tvar diff = v - Math.min(r, g, b);\n\tvar diffc = function (c) {\n\t\treturn (v - c) / 6 / diff + 1 / 2;\n\t};\n\n\tif (diff === 0) {\n\t\th = s = 0;\n\t} else {\n\t\ts = diff / v;\n\t\trdif = diffc(r);\n\t\tgdif = diffc(g);\n\t\tbdif = diffc(b);\n\n\t\tif (r === v) {\n\t\t\th = bdif - gdif;\n\t\t} else if (g === v) {\n\t\t\th = (1 / 3) + rdif - bdif;\n\t\t} else if (b === v) {\n\t\t\th = (2 / 3) + gdif - rdif;\n\t\t}\n\t\tif (h < 0) {\n\t\t\th += 1;\n\t\t} else if (h > 1) {\n\t\t\th -= 1;\n\t\t}\n\t}\n\n\treturn [\n\t\th * 360,\n\t\ts * 100,\n\t\tv * 100\n\t];\n};\n\nconvert.rgb.hwb = function (rgb) {\n\tvar r = rgb[0];\n\tvar g = rgb[1];\n\tvar b = rgb[2];\n\tvar h = convert.rgb.hsl(rgb)[0];\n\tvar w = 1 / 255 * Math.min(r, Math.min(g, b));\n\n\tb = 1 - 1 / 255 * Math.max(r, Math.max(g, b));\n\n\treturn [h, w * 100, b * 100];\n};\n\nconvert.rgb.cmyk = function (rgb) {\n\tvar r = rgb[0] / 255;\n\tvar g = rgb[1] / 255;\n\tvar b = rgb[2] / 255;\n\tvar c;\n\tvar m;\n\tvar y;\n\tvar k;\n\n\tk = Math.min(1 - r, 1 - g, 1 - b);\n\tc = (1 - r - k) / (1 - k) || 0;\n\tm = (1 - g - k) / (1 - k) || 0;\n\ty = (1 - b - k) / (1 - k) || 0;\n\n\treturn [c * 100, m * 100, y * 100, k * 100];\n};\n\n/**\n * See https://en.m.wikipedia.org/wiki/Euclidean_distance#Squared_Euclidean_distance\n * */\nfunction comparativeDistance(x, y) {\n\treturn (\n\t\tMath.pow(x[0] - y[0], 2) +\n\t\tMath.pow(x[1] - y[1], 2) +\n\t\tMath.pow(x[2] - y[2], 2)\n\t);\n}\n\nconvert.rgb.keyword = function (rgb) {\n\tvar reversed = reverseKeywords[rgb];\n\tif (reversed) {\n\t\treturn reversed;\n\t}\n\n\tvar currentClosestDistance = Infinity;\n\tvar currentClosestKeyword;\n\n\tfor (var keyword in colorName) {\n\t\tif (colorName.hasOwnProperty(keyword)) {\n\t\t\tvar value = colorName[keyword];\n\n\t\t\t// Compute comparative distance\n\t\t\tvar distance = comparativeDistance(rgb, value);\n\n\t\t\t// Check if its less, if so set as closest\n\t\t\tif (distance < currentClosestDistance) {\n\t\t\t\tcurrentClosestDistance = distance;\n\t\t\t\tcurrentClosestKeyword = keyword;\n\t\t\t}\n\t\t}\n\t}\n\n\treturn currentClosestKeyword;\n};\n\nconvert.keyword.rgb = function (keyword) {\n\treturn colorName[keyword];\n};\n\nconvert.rgb.xyz = function (rgb) {\n\tvar r = rgb[0] / 255;\n\tvar g = rgb[1] / 255;\n\tvar b = rgb[2] / 255;\n\n\t// assume sRGB\n\tr = r > 0.04045 ? Math.pow(((r + 0.055) / 1.055), 2.4) : (r / 12.92);\n\tg = g > 0.04045 ? Math.pow(((g + 0.055) / 1.055), 2.4) : (g / 12.92);\n\tb = b > 0.04045 ? Math.pow(((b + 0.055) / 1.055), 2.4) : (b / 12.92);\n\n\tvar x = (r * 0.4124) + (g * 0.3576) + (b * 0.1805);\n\tvar y = (r * 0.2126) + (g * 0.7152) + (b * 0.0722);\n\tvar z = (r * 0.0193) + (g * 0.1192) + (b * 0.9505);\n\n\treturn [x * 100, y * 100, z * 100];\n};\n\nconvert.rgb.lab = function (rgb) {\n\tvar xyz = convert.rgb.xyz(rgb);\n\tvar x = xyz[0];\n\tvar y = xyz[1];\n\tvar z = xyz[2];\n\tvar l;\n\tvar a;\n\tvar b;\n\n\tx /= 95.047;\n\ty /= 100;\n\tz /= 108.883;\n\n\tx = x > 0.008856 ? Math.pow(x, 1 / 3) : (7.787 * x) + (16 / 116);\n\ty = y > 0.008856 ? Math.pow(y, 1 / 3) : (7.787 * y) + (16 / 116);\n\tz = z > 0.008856 ? Math.pow(z, 1 / 3) : (7.787 * z) + (16 / 116);\n\n\tl = (116 * y) - 16;\n\ta = 500 * (x - y);\n\tb = 200 * (y - z);\n\n\treturn [l, a, b];\n};\n\nconvert.hsl.rgb = function (hsl) {\n\tvar h = hsl[0] / 360;\n\tvar s = hsl[1] / 100;\n\tvar l = hsl[2] / 100;\n\tvar t1;\n\tvar t2;\n\tvar t3;\n\tvar rgb;\n\tvar val;\n\n\tif (s === 0) {\n\t\tval = l * 255;\n\t\treturn [val, val, val];\n\t}\n\n\tif (l < 0.5) {\n\t\tt2 = l * (1 + s);\n\t} else {\n\t\tt2 = l + s - l * s;\n\t}\n\n\tt1 = 2 * l - t2;\n\n\trgb = [0, 0, 0];\n\tfor (var i = 0; i < 3; i++) {\n\t\tt3 = h + 1 / 3 * -(i - 1);\n\t\tif (t3 < 0) {\n\t\t\tt3++;\n\t\t}\n\t\tif (t3 > 1) {\n\t\t\tt3--;\n\t\t}\n\n\t\tif (6 * t3 < 1) {\n\t\t\tval = t1 + (t2 - t1) * 6 * t3;\n\t\t} else if (2 * t3 < 1) {\n\t\t\tval = t2;\n\t\t} else if (3 * t3 < 2) {\n\t\t\tval = t1 + (t2 - t1) * (2 / 3 - t3) * 6;\n\t\t} else {\n\t\t\tval = t1;\n\t\t}\n\n\t\trgb[i] = val * 255;\n\t}\n\n\treturn rgb;\n};\n\nconvert.hsl.hsv = function (hsl) {\n\tvar h = hsl[0];\n\tvar s = hsl[1] / 100;\n\tvar l = hsl[2] / 100;\n\tvar smin = s;\n\tvar lmin = Math.max(l, 0.01);\n\tvar sv;\n\tvar v;\n\n\tl *= 2;\n\ts *= (l <= 1) ? l : 2 - l;\n\tsmin *= lmin <= 1 ? lmin : 2 - lmin;\n\tv = (l + s) / 2;\n\tsv = l === 0 ? (2 * smin) / (lmin + smin) : (2 * s) / (l + s);\n\n\treturn [h, sv * 100, v * 100];\n};\n\nconvert.hsv.rgb = function (hsv) {\n\tvar h = hsv[0] / 60;\n\tvar s = hsv[1] / 100;\n\tvar v = hsv[2] / 100;\n\tvar hi = Math.floor(h) % 6;\n\n\tvar f = h - Math.floor(h);\n\tvar p = 255 * v * (1 - s);\n\tvar q = 255 * v * (1 - (s * f));\n\tvar t = 255 * v * (1 - (s * (1 - f)));\n\tv *= 255;\n\n\tswitch (hi) {\n\t\tcase 0:\n\t\t\treturn [v, t, p];\n\t\tcase 1:\n\t\t\treturn [q, v, p];\n\t\tcase 2:\n\t\t\treturn [p, v, t];\n\t\tcase 3:\n\t\t\treturn [p, q, v];\n\t\tcase 4:\n\t\t\treturn [t, p, v];\n\t\tcase 5:\n\t\t\treturn [v, p, q];\n\t}\n};\n\nconvert.hsv.hsl = function (hsv) {\n\tvar h = hsv[0];\n\tvar s = hsv[1] / 100;\n\tvar v = hsv[2] / 100;\n\tvar vmin = Math.max(v, 0.01);\n\tvar lmin;\n\tvar sl;\n\tvar l;\n\n\tl = (2 - s) * v;\n\tlmin = (2 - s) * vmin;\n\tsl = s * vmin;\n\tsl /= (lmin <= 1) ? lmin : 2 - lmin;\n\tsl = sl || 0;\n\tl /= 2;\n\n\treturn [h, sl * 100, l * 100];\n};\n\n// http://dev.w3.org/csswg/css-color/#hwb-to-rgb\nconvert.hwb.rgb = function (hwb) {\n\tvar h = hwb[0] / 360;\n\tvar wh = hwb[1] / 100;\n\tvar bl = hwb[2] / 100;\n\tvar ratio = wh + bl;\n\tvar i;\n\tvar v;\n\tvar f;\n\tvar n;\n\n\t// wh + bl cant be > 1\n\tif (ratio > 1) {\n\t\twh /= ratio;\n\t\tbl /= ratio;\n\t}\n\n\ti = Math.floor(6 * h);\n\tv = 1 - bl;\n\tf = 6 * h - i;\n\n\tif ((i & 0x01) !== 0) {\n\t\tf = 1 - f;\n\t}\n\n\tn = wh + f * (v - wh); // linear interpolation\n\n\tvar r;\n\tvar g;\n\tvar b;\n\tswitch (i) {\n\t\tdefault:\n\t\tcase 6:\n\t\tcase 0: r = v; g = n; b = wh; break;\n\t\tcase 1: r = n; g = v; b = wh; break;\n\t\tcase 2: r = wh; g = v; b = n; break;\n\t\tcase 3: r = wh; g = n; b = v; break;\n\t\tcase 4: r = n; g = wh; b = v; break;\n\t\tcase 5: r = v; g = wh; b = n; break;\n\t}\n\n\treturn [r * 255, g * 255, b * 255];\n};\n\nconvert.cmyk.rgb = function (cmyk) {\n\tvar c = cmyk[0] / 100;\n\tvar m = cmyk[1] / 100;\n\tvar y = cmyk[2] / 100;\n\tvar k = cmyk[3] / 100;\n\tvar r;\n\tvar g;\n\tvar b;\n\n\tr = 1 - Math.min(1, c * (1 - k) + k);\n\tg = 1 - Math.min(1, m * (1 - k) + k);\n\tb = 1 - Math.min(1, y * (1 - k) + k);\n\n\treturn [r * 255, g * 255, b * 255];\n};\n\nconvert.xyz.rgb = function (xyz) {\n\tvar x = xyz[0] / 100;\n\tvar y = xyz[1] / 100;\n\tvar z = xyz[2] / 100;\n\tvar r;\n\tvar g;\n\tvar b;\n\n\tr = (x * 3.2406) + (y * -1.5372) + (z * -0.4986);\n\tg = (x * -0.9689) + (y * 1.8758) + (z * 0.0415);\n\tb = (x * 0.0557) + (y * -0.2040) + (z * 1.0570);\n\n\t// assume sRGB\n\tr = r > 0.0031308\n\t\t? ((1.055 * Math.pow(r, 1.0 / 2.4)) - 0.055)\n\t\t: r * 12.92;\n\n\tg = g > 0.0031308\n\t\t? ((1.055 * Math.pow(g, 1.0 / 2.4)) - 0.055)\n\t\t: g * 12.92;\n\n\tb = b > 0.0031308\n\t\t? ((1.055 * Math.pow(b, 1.0 / 2.4)) - 0.055)\n\t\t: b * 12.92;\n\n\tr = Math.min(Math.max(0, r), 1);\n\tg = Math.min(Math.max(0, g), 1);\n\tb = Math.min(Math.max(0, b), 1);\n\n\treturn [r * 255, g * 255, b * 255];\n};\n\nconvert.xyz.lab = function (xyz) {\n\tvar x = xyz[0];\n\tvar y = xyz[1];\n\tvar z = xyz[2];\n\tvar l;\n\tvar a;\n\tvar b;\n\n\tx /= 95.047;\n\ty /= 100;\n\tz /= 108.883;\n\n\tx = x > 0.008856 ? Math.pow(x, 1 / 3) : (7.787 * x) + (16 / 116);\n\ty = y > 0.008856 ? Math.pow(y, 1 / 3) : (7.787 * y) + (16 / 116);\n\tz = z > 0.008856 ? Math.pow(z, 1 / 3) : (7.787 * z) + (16 / 116);\n\n\tl = (116 * y) - 16;\n\ta = 500 * (x - y);\n\tb = 200 * (y - z);\n\n\treturn [l, a, b];\n};\n\nconvert.lab.xyz = function (lab) {\n\tvar l = lab[0];\n\tvar a = lab[1];\n\tvar b = lab[2];\n\tvar x;\n\tvar y;\n\tvar z;\n\n\ty = (l + 16) / 116;\n\tx = a / 500 + y;\n\tz = y - b / 200;\n\n\tvar y2 = Math.pow(y, 3);\n\tvar x2 = Math.pow(x, 3);\n\tvar z2 = Math.pow(z, 3);\n\ty = y2 > 0.008856 ? y2 : (y - 16 / 116) / 7.787;\n\tx = x2 > 0.008856 ? x2 : (x - 16 / 116) / 7.787;\n\tz = z2 > 0.008856 ? z2 : (z - 16 / 116) / 7.787;\n\n\tx *= 95.047;\n\ty *= 100;\n\tz *= 108.883;\n\n\treturn [x, y, z];\n};\n\nconvert.lab.lch = function (lab) {\n\tvar l = lab[0];\n\tvar a = lab[1];\n\tvar b = lab[2];\n\tvar hr;\n\tvar h;\n\tvar c;\n\n\thr = Math.atan2(b, a);\n\th = hr * 360 / 2 / Math.PI;\n\n\tif (h < 0) {\n\t\th += 360;\n\t}\n\n\tc = Math.sqrt(a * a + b * b);\n\n\treturn [l, c, h];\n};\n\nconvert.lch.lab = function (lch) {\n\tvar l = lch[0];\n\tvar c = lch[1];\n\tvar h = lch[2];\n\tvar a;\n\tvar b;\n\tvar hr;\n\n\thr = h / 360 * 2 * Math.PI;\n\ta = c * Math.cos(hr);\n\tb = c * Math.sin(hr);\n\n\treturn [l, a, b];\n};\n\nconvert.rgb.ansi16 = function (args) {\n\tvar r = args[0];\n\tvar g = args[1];\n\tvar b = args[2];\n\tvar value = 1 in arguments ? arguments[1] : convert.rgb.hsv(args)[2]; // hsv -> ansi16 optimization\n\n\tvalue = Math.round(value / 50);\n\n\tif (value === 0) {\n\t\treturn 30;\n\t}\n\n\tvar ansi = 30\n\t\t+ ((Math.round(b / 255) << 2)\n\t\t| (Math.round(g / 255) << 1)\n\t\t| Math.round(r / 255));\n\n\tif (value === 2) {\n\t\tansi += 60;\n\t}\n\n\treturn ansi;\n};\n\nconvert.hsv.ansi16 = function (args) {\n\t// optimization here; we already know the value and don't need to get\n\t// it converted for us.\n\treturn convert.rgb.ansi16(convert.hsv.rgb(args), args[2]);\n};\n\nconvert.rgb.ansi256 = function (args) {\n\tvar r = args[0];\n\tvar g = args[1];\n\tvar b = args[2];\n\n\t// we use the extended greyscale palette here, with the exception of\n\t// black and white. normal palette only has 4 greyscale shades.\n\tif (r === g && g === b) {\n\t\tif (r < 8) {\n\t\t\treturn 16;\n\t\t}\n\n\t\tif (r > 248) {\n\t\t\treturn 231;\n\t\t}\n\n\t\treturn Math.round(((r - 8) / 247) * 24) + 232;\n\t}\n\n\tvar ansi = 16\n\t\t+ (36 * Math.round(r / 255 * 5))\n\t\t+ (6 * Math.round(g / 255 * 5))\n\t\t+ Math.round(b / 255 * 5);\n\n\treturn ansi;\n};\n\nconvert.ansi16.rgb = function (args) {\n\tvar color = args % 10;\n\n\t// handle greyscale\n\tif (color === 0 || color === 7) {\n\t\tif (args > 50) {\n\t\t\tcolor += 3.5;\n\t\t}\n\n\t\tcolor = color / 10.5 * 255;\n\n\t\treturn [color, color, color];\n\t}\n\n\tvar mult = (~~(args > 50) + 1) * 0.5;\n\tvar r = ((color & 1) * mult) * 255;\n\tvar g = (((color >> 1) & 1) * mult) * 255;\n\tvar b = (((color >> 2) & 1) * mult) * 255;\n\n\treturn [r, g, b];\n};\n\nconvert.ansi256.rgb = function (args) {\n\t// handle greyscale\n\tif (args >= 232) {\n\t\tvar c = (args - 232) * 10 + 8;\n\t\treturn [c, c, c];\n\t}\n\n\targs -= 16;\n\n\tvar rem;\n\tvar r = Math.floor(args / 36) / 5 * 255;\n\tvar g = Math.floor((rem = args % 36) / 6) / 5 * 255;\n\tvar b = (rem % 6) / 5 * 255;\n\n\treturn [r, g, b];\n};\n\nconvert.rgb.hex = function (args) {\n\tvar integer = ((Math.round(args[0]) & 0xFF) << 16)\n\t\t+ ((Math.round(args[1]) & 0xFF) << 8)\n\t\t+ (Math.round(args[2]) & 0xFF);\n\n\tvar string = integer.toString(16).toUpperCase();\n\treturn '000000'.substring(string.length) + string;\n};\n\nconvert.hex.rgb = function (args) {\n\tvar match = args.toString(16).match(/[a-f0-9]{6}|[a-f0-9]{3}/i);\n\tif (!match) {\n\t\treturn [0, 0, 0];\n\t}\n\n\tvar colorString = match[0];\n\n\tif (match[0].length === 3) {\n\t\tcolorString = colorString.split('').map(function (char) {\n\t\t\treturn char + char;\n\t\t}).join('');\n\t}\n\n\tvar integer = parseInt(colorString, 16);\n\tvar r = (integer >> 16) & 0xFF;\n\tvar g = (integer >> 8) & 0xFF;\n\tvar b = integer & 0xFF;\n\n\treturn [r, g, b];\n};\n\nconvert.rgb.hcg = function (rgb) {\n\tvar r = rgb[0] / 255;\n\tvar g = rgb[1] / 255;\n\tvar b = rgb[2] / 255;\n\tvar max = Math.max(Math.max(r, g), b);\n\tvar min = Math.min(Math.min(r, g), b);\n\tvar chroma = (max - min);\n\tvar grayscale;\n\tvar hue;\n\n\tif (chroma < 1) {\n\t\tgrayscale = min / (1 - chroma);\n\t} else {\n\t\tgrayscale = 0;\n\t}\n\n\tif (chroma <= 0) {\n\t\thue = 0;\n\t} else\n\tif (max === r) {\n\t\thue = ((g - b) / chroma) % 6;\n\t} else\n\tif (max === g) {\n\t\thue = 2 + (b - r) / chroma;\n\t} else {\n\t\thue = 4 + (r - g) / chroma + 4;\n\t}\n\n\thue /= 6;\n\thue %= 1;\n\n\treturn [hue * 360, chroma * 100, grayscale * 100];\n};\n\nconvert.hsl.hcg = function (hsl) {\n\tvar s = hsl[1] / 100;\n\tvar l = hsl[2] / 100;\n\tvar c = 1;\n\tvar f = 0;\n\n\tif (l < 0.5) {\n\t\tc = 2.0 * s * l;\n\t} else {\n\t\tc = 2.0 * s * (1.0 - l);\n\t}\n\n\tif (c < 1.0) {\n\t\tf = (l - 0.5 * c) / (1.0 - c);\n\t}\n\n\treturn [hsl[0], c * 100, f * 100];\n};\n\nconvert.hsv.hcg = function (hsv) {\n\tvar s = hsv[1] / 100;\n\tvar v = hsv[2] / 100;\n\n\tvar c = s * v;\n\tvar f = 0;\n\n\tif (c < 1.0) {\n\t\tf = (v - c) / (1 - c);\n\t}\n\n\treturn [hsv[0], c * 100, f * 100];\n};\n\nconvert.hcg.rgb = function (hcg) {\n\tvar h = hcg[0] / 360;\n\tvar c = hcg[1] / 100;\n\tvar g = hcg[2] / 100;\n\n\tif (c === 0.0) {\n\t\treturn [g * 255, g * 255, g * 255];\n\t}\n\n\tvar pure = [0, 0, 0];\n\tvar hi = (h % 1) * 6;\n\tvar v = hi % 1;\n\tvar w = 1 - v;\n\tvar mg = 0;\n\n\tswitch (Math.floor(hi)) {\n\t\tcase 0:\n\t\t\tpure[0] = 1; pure[1] = v; pure[2] = 0; break;\n\t\tcase 1:\n\t\t\tpure[0] = w; pure[1] = 1; pure[2] = 0; break;\n\t\tcase 2:\n\t\t\tpure[0] = 0; pure[1] = 1; pure[2] = v; break;\n\t\tcase 3:\n\t\t\tpure[0] = 0; pure[1] = w; pure[2] = 1; break;\n\t\tcase 4:\n\t\t\tpure[0] = v; pure[1] = 0; pure[2] = 1; break;\n\t\tdefault:\n\t\t\tpure[0] = 1; pure[1] = 0; pure[2] = w;\n\t}\n\n\tmg = (1.0 - c) * g;\n\n\treturn [\n\t\t(c * pure[0] + mg) * 255,\n\t\t(c * pure[1] + mg) * 255,\n\t\t(c * pure[2] + mg) * 255\n\t];\n};\n\nconvert.hcg.hsv = function (hcg) {\n\tvar c = hcg[1] / 100;\n\tvar g = hcg[2] / 100;\n\n\tvar v = c + g * (1.0 - c);\n\tvar f = 0;\n\n\tif (v > 0.0) {\n\t\tf = c / v;\n\t}\n\n\treturn [hcg[0], f * 100, v * 100];\n};\n\nconvert.hcg.hsl = function (hcg) {\n\tvar c = hcg[1] / 100;\n\tvar g = hcg[2] / 100;\n\n\tvar l = g * (1.0 - c) + 0.5 * c;\n\tvar s = 0;\n\n\tif (l > 0.0 && l < 0.5) {\n\t\ts = c / (2 * l);\n\t} else\n\tif (l >= 0.5 && l < 1.0) {\n\t\ts = c / (2 * (1 - l));\n\t}\n\n\treturn [hcg[0], s * 100, l * 100];\n};\n\nconvert.hcg.hwb = function (hcg) {\n\tvar c = hcg[1] / 100;\n\tvar g = hcg[2] / 100;\n\tvar v = c + g * (1.0 - c);\n\treturn [hcg[0], (v - c) * 100, (1 - v) * 100];\n};\n\nconvert.hwb.hcg = function (hwb) {\n\tvar w = hwb[1] / 100;\n\tvar b = hwb[2] / 100;\n\tvar v = 1 - b;\n\tvar c = v - w;\n\tvar g = 0;\n\n\tif (c < 1) {\n\t\tg = (v - c) / (1 - c);\n\t}\n\n\treturn [hwb[0], c * 100, g * 100];\n};\n\nconvert.apple.rgb = function (apple) {\n\treturn [(apple[0] / 65535) * 255, (apple[1] / 65535) * 255, (apple[2] / 65535) * 255];\n};\n\nconvert.rgb.apple = function (rgb) {\n\treturn [(rgb[0] / 255) * 65535, (rgb[1] / 255) * 65535, (rgb[2] / 255) * 65535];\n};\n\nconvert.gray.rgb = function (args) {\n\treturn [args[0] / 100 * 255, args[0] / 100 * 255, args[0] / 100 * 255];\n};\n\nconvert.gray.hsl = convert.gray.hsv = function (args) {\n\treturn [0, 0, args[0]];\n};\n\nconvert.gray.hwb = function (gray) {\n\treturn [0, 100, gray[0]];\n};\n\nconvert.gray.cmyk = function (gray) {\n\treturn [0, 0, 0, gray[0]];\n};\n\nconvert.gray.lab = function (gray) {\n\treturn [gray[0], 0, 0];\n};\n\nconvert.gray.hex = function (gray) {\n\tvar val = Math.round(gray[0] / 100 * 255) & 0xFF;\n\tvar integer = (val << 16) + (val << 8) + val;\n\n\tvar string = integer.toString(16).toUpperCase();\n\treturn '000000'.substring(string.length) + string;\n};\n\nconvert.rgb.gray = function (rgb) {\n\tvar val = (rgb[0] + rgb[1] + rgb[2]) / 3;\n\treturn [val / 255 * 100];\n};\n});\nvar conversions_1 = conversions.rgb;\nvar conversions_2 = conversions.hsl;\nvar conversions_3 = conversions.hsv;\nvar conversions_4 = conversions.hwb;\nvar conversions_5 = conversions.cmyk;\nvar conversions_6 = conversions.xyz;\nvar conversions_7 = conversions.lab;\nvar conversions_8 = conversions.lch;\nvar conversions_9 = conversions.hex;\nvar conversions_10 = conversions.keyword;\nvar conversions_11 = conversions.ansi16;\nvar conversions_12 = conversions.ansi256;\nvar conversions_13 = conversions.hcg;\nvar conversions_14 = conversions.apple;\nvar conversions_15 = conversions.gray;\n\n/*\n\tthis function routes a model to all other models.\n\n\tall functions that are routed have a property `.conversion` attached\n\tto the returned synthetic function. This property is an array\n\tof strings, each with the steps in between the 'from' and 'to'\n\tcolor models (inclusive).\n\n\tconversions that are not possible simply are not included.\n*/\n\nfunction buildGraph() {\n\tvar graph = {};\n\t// https://jsperf.com/object-keys-vs-for-in-with-closure/3\n\tvar models = Object.keys(conversions);\n\n\tfor (var len = models.length, i = 0; i < len; i++) {\n\t\tgraph[models[i]] = {\n\t\t\t// http://jsperf.com/1-vs-infinity\n\t\t\t// micro-opt, but this is simple.\n\t\t\tdistance: -1,\n\t\t\tparent: null\n\t\t};\n\t}\n\n\treturn graph;\n}\n\n// https://en.wikipedia.org/wiki/Breadth-first_search\nfunction deriveBFS(fromModel) {\n\tvar graph = buildGraph();\n\tvar queue = [fromModel]; // unshift -> queue -> pop\n\n\tgraph[fromModel].distance = 0;\n\n\twhile (queue.length) {\n\t\tvar current = queue.pop();\n\t\tvar adjacents = Object.keys(conversions[current]);\n\n\t\tfor (var len = adjacents.length, i = 0; i < len; i++) {\n\t\t\tvar adjacent = adjacents[i];\n\t\t\tvar node = graph[adjacent];\n\n\t\t\tif (node.distance === -1) {\n\t\t\t\tnode.distance = graph[current].distance + 1;\n\t\t\t\tnode.parent = current;\n\t\t\t\tqueue.unshift(adjacent);\n\t\t\t}\n\t\t}\n\t}\n\n\treturn graph;\n}\n\nfunction link(from, to) {\n\treturn function (args) {\n\t\treturn to(from(args));\n\t};\n}\n\nfunction wrapConversion(toModel, graph) {\n\tvar path = [graph[toModel].parent, toModel];\n\tvar fn = conversions[graph[toModel].parent][toModel];\n\n\tvar cur = graph[toModel].parent;\n\twhile (graph[cur].parent) {\n\t\tpath.unshift(graph[cur].parent);\n\t\tfn = link(conversions[graph[cur].parent][cur], fn);\n\t\tcur = graph[cur].parent;\n\t}\n\n\tfn.conversion = path;\n\treturn fn;\n}\n\nvar route = function (fromModel) {\n\tvar graph = deriveBFS(fromModel);\n\tvar conversion = {};\n\n\tvar models = Object.keys(graph);\n\tfor (var len = models.length, i = 0; i < len; i++) {\n\t\tvar toModel = models[i];\n\t\tvar node = graph[toModel];\n\n\t\tif (node.parent === null) {\n\t\t\t// no possible conversion, or this node is the source model.\n\t\t\tcontinue;\n\t\t}\n\n\t\tconversion[toModel] = wrapConversion(toModel, graph);\n\t}\n\n\treturn conversion;\n};\n\nvar convert = {};\n\nvar models = Object.keys(conversions);\n\nfunction wrapRaw(fn) {\n\tvar wrappedFn = function (args) {\n\t\tif (args === undefined || args === null) {\n\t\t\treturn args;\n\t\t}\n\n\t\tif (arguments.length > 1) {\n\t\t\targs = Array.prototype.slice.call(arguments);\n\t\t}\n\n\t\treturn fn(args);\n\t};\n\n\t// preserve .conversion property if there is one\n\tif ('conversion' in fn) {\n\t\twrappedFn.conversion = fn.conversion;\n\t}\n\n\treturn wrappedFn;\n}\n\nfunction wrapRounded(fn) {\n\tvar wrappedFn = function (args) {\n\t\tif (args === undefined || args === null) {\n\t\t\treturn args;\n\t\t}\n\n\t\tif (arguments.length > 1) {\n\t\t\targs = Array.prototype.slice.call(arguments);\n\t\t}\n\n\t\tvar result = fn(args);\n\n\t\t// we're assuming the result is an array here.\n\t\t// see notice in conversions.js; don't use box types\n\t\t// in conversion functions.\n\t\tif (typeof result === 'object') {\n\t\t\tfor (var len = result.length, i = 0; i < len; i++) {\n\t\t\t\tresult[i] = Math.round(result[i]);\n\t\t\t}\n\t\t}\n\n\t\treturn result;\n\t};\n\n\t// preserve .conversion property if there is one\n\tif ('conversion' in fn) {\n\t\twrappedFn.conversion = fn.conversion;\n\t}\n\n\treturn wrappedFn;\n}\n\nmodels.forEach(function (fromModel) {\n\tconvert[fromModel] = {};\n\n\tObject.defineProperty(convert[fromModel], 'channels', {value: conversions[fromModel].channels});\n\tObject.defineProperty(convert[fromModel], 'labels', {value: conversions[fromModel].labels});\n\n\tvar routes = route(fromModel);\n\tvar routeModels = Object.keys(routes);\n\n\trouteModels.forEach(function (toModel) {\n\t\tvar fn = routes[toModel];\n\n\t\tconvert[fromModel][toModel] = wrapRounded(fn);\n\t\tconvert[fromModel][toModel].raw = wrapRaw(fn);\n\t});\n});\n\nvar colorConvert = convert;\n\nvar colorName$1 = {\r\n\t\"aliceblue\": [240, 248, 255],\r\n\t\"antiquewhite\": [250, 235, 215],\r\n\t\"aqua\": [0, 255, 255],\r\n\t\"aquamarine\": [127, 255, 212],\r\n\t\"azure\": [240, 255, 255],\r\n\t\"beige\": [245, 245, 220],\r\n\t\"bisque\": [255, 228, 196],\r\n\t\"black\": [0, 0, 0],\r\n\t\"blanchedalmond\": [255, 235, 205],\r\n\t\"blue\": [0, 0, 255],\r\n\t\"blueviolet\": [138, 43, 226],\r\n\t\"brown\": [165, 42, 42],\r\n\t\"burlywood\": [222, 184, 135],\r\n\t\"cadetblue\": [95, 158, 160],\r\n\t\"chartreuse\": [127, 255, 0],\r\n\t\"chocolate\": [210, 105, 30],\r\n\t\"coral\": [255, 127, 80],\r\n\t\"cornflowerblue\": [100, 149, 237],\r\n\t\"cornsilk\": [255, 248, 220],\r\n\t\"crimson\": [220, 20, 60],\r\n\t\"cyan\": [0, 255, 255],\r\n\t\"darkblue\": [0, 0, 139],\r\n\t\"darkcyan\": [0, 139, 139],\r\n\t\"darkgoldenrod\": [184, 134, 11],\r\n\t\"darkgray\": [169, 169, 169],\r\n\t\"darkgreen\": [0, 100, 0],\r\n\t\"darkgrey\": [169, 169, 169],\r\n\t\"darkkhaki\": [189, 183, 107],\r\n\t\"darkmagenta\": [139, 0, 139],\r\n\t\"darkolivegreen\": [85, 107, 47],\r\n\t\"darkorange\": [255, 140, 0],\r\n\t\"darkorchid\": [153, 50, 204],\r\n\t\"darkred\": [139, 0, 0],\r\n\t\"darksalmon\": [233, 150, 122],\r\n\t\"darkseagreen\": [143, 188, 143],\r\n\t\"darkslateblue\": [72, 61, 139],\r\n\t\"darkslategray\": [47, 79, 79],\r\n\t\"darkslategrey\": [47, 79, 79],\r\n\t\"darkturquoise\": [0, 206, 209],\r\n\t\"darkviolet\": [148, 0, 211],\r\n\t\"deeppink\": [255, 20, 147],\r\n\t\"deepskyblue\": [0, 191, 255],\r\n\t\"dimgray\": [105, 105, 105],\r\n\t\"dimgrey\": [105, 105, 105],\r\n\t\"dodgerblue\": [30, 144, 255],\r\n\t\"firebrick\": [178, 34, 34],\r\n\t\"floralwhite\": [255, 250, 240],\r\n\t\"forestgreen\": [34, 139, 34],\r\n\t\"fuchsia\": [255, 0, 255],\r\n\t\"gainsboro\": [220, 220, 220],\r\n\t\"ghostwhite\": [248, 248, 255],\r\n\t\"gold\": [255, 215, 0],\r\n\t\"goldenrod\": [218, 165, 32],\r\n\t\"gray\": [128, 128, 128],\r\n\t\"green\": [0, 128, 0],\r\n\t\"greenyellow\": [173, 255, 47],\r\n\t\"grey\": [128, 128, 128],\r\n\t\"honeydew\": [240, 255, 240],\r\n\t\"hotpink\": [255, 105, 180],\r\n\t\"indianred\": [205, 92, 92],\r\n\t\"indigo\": [75, 0, 130],\r\n\t\"ivory\": [255, 255, 240],\r\n\t\"khaki\": [240, 230, 140],\r\n\t\"lavender\": [230, 230, 250],\r\n\t\"lavenderblush\": [255, 240, 245],\r\n\t\"lawngreen\": [124, 252, 0],\r\n\t\"lemonchiffon\": [255, 250, 205],\r\n\t\"lightblue\": [173, 216, 230],\r\n\t\"lightcoral\": [240, 128, 128],\r\n\t\"lightcyan\": [224, 255, 255],\r\n\t\"lightgoldenrodyellow\": [250, 250, 210],\r\n\t\"lightgray\": [211, 211, 211],\r\n\t\"lightgreen\": [144, 238, 144],\r\n\t\"lightgrey\": [211, 211, 211],\r\n\t\"lightpink\": [255, 182, 193],\r\n\t\"lightsalmon\": [255, 160, 122],\r\n\t\"lightseagreen\": [32, 178, 170],\r\n\t\"lightskyblue\": [135, 206, 250],\r\n\t\"lightslategray\": [119, 136, 153],\r\n\t\"lightslategrey\": [119, 136, 153],\r\n\t\"lightsteelblue\": [176, 196, 222],\r\n\t\"lightyellow\": [255, 255, 224],\r\n\t\"lime\": [0, 255, 0],\r\n\t\"limegreen\": [50, 205, 50],\r\n\t\"linen\": [250, 240, 230],\r\n\t\"magenta\": [255, 0, 255],\r\n\t\"maroon\": [128, 0, 0],\r\n\t\"mediumaquamarine\": [102, 205, 170],\r\n\t\"mediumblue\": [0, 0, 205],\r\n\t\"mediumorchid\": [186, 85, 211],\r\n\t\"mediumpurple\": [147, 112, 219],\r\n\t\"mediumseagreen\": [60, 179, 113],\r\n\t\"mediumslateblue\": [123, 104, 238],\r\n\t\"mediumspringgreen\": [0, 250, 154],\r\n\t\"mediumturquoise\": [72, 209, 204],\r\n\t\"mediumvioletred\": [199, 21, 133],\r\n\t\"midnightblue\": [25, 25, 112],\r\n\t\"mintcream\": [245, 255, 250],\r\n\t\"mistyrose\": [255, 228, 225],\r\n\t\"moccasin\": [255, 228, 181],\r\n\t\"navajowhite\": [255, 222, 173],\r\n\t\"navy\": [0, 0, 128],\r\n\t\"oldlace\": [253, 245, 230],\r\n\t\"olive\": [128, 128, 0],\r\n\t\"olivedrab\": [107, 142, 35],\r\n\t\"orange\": [255, 165, 0],\r\n\t\"orangered\": [255, 69, 0],\r\n\t\"orchid\": [218, 112, 214],\r\n\t\"palegoldenrod\": [238, 232, 170],\r\n\t\"palegreen\": [152, 251, 152],\r\n\t\"paleturquoise\": [175, 238, 238],\r\n\t\"palevioletred\": [219, 112, 147],\r\n\t\"papayawhip\": [255, 239, 213],\r\n\t\"peachpuff\": [255, 218, 185],\r\n\t\"peru\": [205, 133, 63],\r\n\t\"pink\": [255, 192, 203],\r\n\t\"plum\": [221, 160, 221],\r\n\t\"powderblue\": [176, 224, 230],\r\n\t\"purple\": [128, 0, 128],\r\n\t\"rebeccapurple\": [102, 51, 153],\r\n\t\"red\": [255, 0, 0],\r\n\t\"rosybrown\": [188, 143, 143],\r\n\t\"royalblue\": [65, 105, 225],\r\n\t\"saddlebrown\": [139, 69, 19],\r\n\t\"salmon\": [250, 128, 114],\r\n\t\"sandybrown\": [244, 164, 96],\r\n\t\"seagreen\": [46, 139, 87],\r\n\t\"seashell\": [255, 245, 238],\r\n\t\"sienna\": [160, 82, 45],\r\n\t\"silver\": [192, 192, 192],\r\n\t\"skyblue\": [135, 206, 235],\r\n\t\"slateblue\": [106, 90, 205],\r\n\t\"slategray\": [112, 128, 144],\r\n\t\"slategrey\": [112, 128, 144],\r\n\t\"snow\": [255, 250, 250],\r\n\t\"springgreen\": [0, 255, 127],\r\n\t\"steelblue\": [70, 130, 180],\r\n\t\"tan\": [210, 180, 140],\r\n\t\"teal\": [0, 128, 128],\r\n\t\"thistle\": [216, 191, 216],\r\n\t\"tomato\": [255, 99, 71],\r\n\t\"turquoise\": [64, 224, 208],\r\n\t\"violet\": [238, 130, 238],\r\n\t\"wheat\": [245, 222, 179],\r\n\t\"white\": [255, 255, 255],\r\n\t\"whitesmoke\": [245, 245, 245],\r\n\t\"yellow\": [255, 255, 0],\r\n\t\"yellowgreen\": [154, 205, 50]\r\n};\n\n/* MIT license */\n\n\nvar colorString = {\n getRgba: getRgba,\n getHsla: getHsla,\n getRgb: getRgb,\n getHsl: getHsl,\n getHwb: getHwb,\n getAlpha: getAlpha,\n\n hexString: hexString,\n rgbString: rgbString,\n rgbaString: rgbaString,\n percentString: percentString,\n percentaString: percentaString,\n hslString: hslString,\n hslaString: hslaString,\n hwbString: hwbString,\n keyword: keyword\n};\n\nfunction getRgba(string) {\n if (!string) {\n return;\n }\n var abbr = /^#([a-fA-F0-9]{3,4})$/i,\n hex = /^#([a-fA-F0-9]{6}([a-fA-F0-9]{2})?)$/i,\n rgba = /^rgba?\\(\\s*([+-]?\\d+)\\s*,\\s*([+-]?\\d+)\\s*,\\s*([+-]?\\d+)\\s*(?:,\\s*([+-]?[\\d\\.]+)\\s*)?\\)$/i,\n per = /^rgba?\\(\\s*([+-]?[\\d\\.]+)\\%\\s*,\\s*([+-]?[\\d\\.]+)\\%\\s*,\\s*([+-]?[\\d\\.]+)\\%\\s*(?:,\\s*([+-]?[\\d\\.]+)\\s*)?\\)$/i,\n keyword = /(\\w+)/;\n\n var rgb = [0, 0, 0],\n a = 1,\n match = string.match(abbr),\n hexAlpha = \"\";\n if (match) {\n match = match[1];\n hexAlpha = match[3];\n for (var i = 0; i < rgb.length; i++) {\n rgb[i] = parseInt(match[i] + match[i], 16);\n }\n if (hexAlpha) {\n a = Math.round((parseInt(hexAlpha + hexAlpha, 16) / 255) * 100) / 100;\n }\n }\n else if (match = string.match(hex)) {\n hexAlpha = match[2];\n match = match[1];\n for (var i = 0; i < rgb.length; i++) {\n rgb[i] = parseInt(match.slice(i * 2, i * 2 + 2), 16);\n }\n if (hexAlpha) {\n a = Math.round((parseInt(hexAlpha, 16) / 255) * 100) / 100;\n }\n }\n else if (match = string.match(rgba)) {\n for (var i = 0; i < rgb.length; i++) {\n rgb[i] = parseInt(match[i + 1]);\n }\n a = parseFloat(match[4]);\n }\n else if (match = string.match(per)) {\n for (var i = 0; i < rgb.length; i++) {\n rgb[i] = Math.round(parseFloat(match[i + 1]) * 2.55);\n }\n a = parseFloat(match[4]);\n }\n else if (match = string.match(keyword)) {\n if (match[1] == \"transparent\") {\n return [0, 0, 0, 0];\n }\n rgb = colorName$1[match[1]];\n if (!rgb) {\n return;\n }\n }\n\n for (var i = 0; i < rgb.length; i++) {\n rgb[i] = scale(rgb[i], 0, 255);\n }\n if (!a && a != 0) {\n a = 1;\n }\n else {\n a = scale(a, 0, 1);\n }\n rgb[3] = a;\n return rgb;\n}\n\nfunction getHsla(string) {\n if (!string) {\n return;\n }\n var hsl = /^hsla?\\(\\s*([+-]?\\d+)(?:deg)?\\s*,\\s*([+-]?[\\d\\.]+)%\\s*,\\s*([+-]?[\\d\\.]+)%\\s*(?:,\\s*([+-]?[\\d\\.]+)\\s*)?\\)/;\n var match = string.match(hsl);\n if (match) {\n var alpha = parseFloat(match[4]);\n var h = scale(parseInt(match[1]), 0, 360),\n s = scale(parseFloat(match[2]), 0, 100),\n l = scale(parseFloat(match[3]), 0, 100),\n a = scale(isNaN(alpha) ? 1 : alpha, 0, 1);\n return [h, s, l, a];\n }\n}\n\nfunction getHwb(string) {\n if (!string) {\n return;\n }\n var hwb = /^hwb\\(\\s*([+-]?\\d+)(?:deg)?\\s*,\\s*([+-]?[\\d\\.]+)%\\s*,\\s*([+-]?[\\d\\.]+)%\\s*(?:,\\s*([+-]?[\\d\\.]+)\\s*)?\\)/;\n var match = string.match(hwb);\n if (match) {\n var alpha = parseFloat(match[4]);\n var h = scale(parseInt(match[1]), 0, 360),\n w = scale(parseFloat(match[2]), 0, 100),\n b = scale(parseFloat(match[3]), 0, 100),\n a = scale(isNaN(alpha) ? 1 : alpha, 0, 1);\n return [h, w, b, a];\n }\n}\n\nfunction getRgb(string) {\n var rgba = getRgba(string);\n return rgba && rgba.slice(0, 3);\n}\n\nfunction getHsl(string) {\n var hsla = getHsla(string);\n return hsla && hsla.slice(0, 3);\n}\n\nfunction getAlpha(string) {\n var vals = getRgba(string);\n if (vals) {\n return vals[3];\n }\n else if (vals = getHsla(string)) {\n return vals[3];\n }\n else if (vals = getHwb(string)) {\n return vals[3];\n }\n}\n\n// generators\nfunction hexString(rgba, a) {\n var a = (a !== undefined && rgba.length === 3) ? a : rgba[3];\n return \"#\" + hexDouble(rgba[0]) \n + hexDouble(rgba[1])\n + hexDouble(rgba[2])\n + (\n (a >= 0 && a < 1)\n ? hexDouble(Math.round(a * 255))\n : \"\"\n );\n}\n\nfunction rgbString(rgba, alpha) {\n if (alpha < 1 || (rgba[3] && rgba[3] < 1)) {\n return rgbaString(rgba, alpha);\n }\n return \"rgb(\" + rgba[0] + \", \" + rgba[1] + \", \" + rgba[2] + \")\";\n}\n\nfunction rgbaString(rgba, alpha) {\n if (alpha === undefined) {\n alpha = (rgba[3] !== undefined ? rgba[3] : 1);\n }\n return \"rgba(\" + rgba[0] + \", \" + rgba[1] + \", \" + rgba[2]\n + \", \" + alpha + \")\";\n}\n\nfunction percentString(rgba, alpha) {\n if (alpha < 1 || (rgba[3] && rgba[3] < 1)) {\n return percentaString(rgba, alpha);\n }\n var r = Math.round(rgba[0]/255 * 100),\n g = Math.round(rgba[1]/255 * 100),\n b = Math.round(rgba[2]/255 * 100);\n\n return \"rgb(\" + r + \"%, \" + g + \"%, \" + b + \"%)\";\n}\n\nfunction percentaString(rgba, alpha) {\n var r = Math.round(rgba[0]/255 * 100),\n g = Math.round(rgba[1]/255 * 100),\n b = Math.round(rgba[2]/255 * 100);\n return \"rgba(\" + r + \"%, \" + g + \"%, \" + b + \"%, \" + (alpha || rgba[3] || 1) + \")\";\n}\n\nfunction hslString(hsla, alpha) {\n if (alpha < 1 || (hsla[3] && hsla[3] < 1)) {\n return hslaString(hsla, alpha);\n }\n return \"hsl(\" + hsla[0] + \", \" + hsla[1] + \"%, \" + hsla[2] + \"%)\";\n}\n\nfunction hslaString(hsla, alpha) {\n if (alpha === undefined) {\n alpha = (hsla[3] !== undefined ? hsla[3] : 1);\n }\n return \"hsla(\" + hsla[0] + \", \" + hsla[1] + \"%, \" + hsla[2] + \"%, \"\n + alpha + \")\";\n}\n\n// hwb is a bit different than rgb(a) & hsl(a) since there is no alpha specific syntax\n// (hwb have alpha optional & 1 is default value)\nfunction hwbString(hwb, alpha) {\n if (alpha === undefined) {\n alpha = (hwb[3] !== undefined ? hwb[3] : 1);\n }\n return \"hwb(\" + hwb[0] + \", \" + hwb[1] + \"%, \" + hwb[2] + \"%\"\n + (alpha !== undefined && alpha !== 1 ? \", \" + alpha : \"\") + \")\";\n}\n\nfunction keyword(rgb) {\n return reverseNames[rgb.slice(0, 3)];\n}\n\n// helpers\nfunction scale(num, min, max) {\n return Math.min(Math.max(min, num), max);\n}\n\nfunction hexDouble(num) {\n var str = num.toString(16).toUpperCase();\n return (str.length < 2) ? \"0\" + str : str;\n}\n\n\n//create a list of reverse color names\nvar reverseNames = {};\nfor (var name in colorName$1) {\n reverseNames[colorName$1[name]] = name;\n}\n\n/* MIT license */\n\n\n\nvar Color = function (obj) {\n\tif (obj instanceof Color) {\n\t\treturn obj;\n\t}\n\tif (!(this instanceof Color)) {\n\t\treturn new Color(obj);\n\t}\n\n\tthis.valid = false;\n\tthis.values = {\n\t\trgb: [0, 0, 0],\n\t\thsl: [0, 0, 0],\n\t\thsv: [0, 0, 0],\n\t\thwb: [0, 0, 0],\n\t\tcmyk: [0, 0, 0, 0],\n\t\talpha: 1\n\t};\n\n\t// parse Color() argument\n\tvar vals;\n\tif (typeof obj === 'string') {\n\t\tvals = colorString.getRgba(obj);\n\t\tif (vals) {\n\t\t\tthis.setValues('rgb', vals);\n\t\t} else if (vals = colorString.getHsla(obj)) {\n\t\t\tthis.setValues('hsl', vals);\n\t\t} else if (vals = colorString.getHwb(obj)) {\n\t\t\tthis.setValues('hwb', vals);\n\t\t}\n\t} else if (typeof obj === 'object') {\n\t\tvals = obj;\n\t\tif (vals.r !== undefined || vals.red !== undefined) {\n\t\t\tthis.setValues('rgb', vals);\n\t\t} else if (vals.l !== undefined || vals.lightness !== undefined) {\n\t\t\tthis.setValues('hsl', vals);\n\t\t} else if (vals.v !== undefined || vals.value !== undefined) {\n\t\t\tthis.setValues('hsv', vals);\n\t\t} else if (vals.w !== undefined || vals.whiteness !== undefined) {\n\t\t\tthis.setValues('hwb', vals);\n\t\t} else if (vals.c !== undefined || vals.cyan !== undefined) {\n\t\t\tthis.setValues('cmyk', vals);\n\t\t}\n\t}\n};\n\nColor.prototype = {\n\tisValid: function () {\n\t\treturn this.valid;\n\t},\n\trgb: function () {\n\t\treturn this.setSpace('rgb', arguments);\n\t},\n\thsl: function () {\n\t\treturn this.setSpace('hsl', arguments);\n\t},\n\thsv: function () {\n\t\treturn this.setSpace('hsv', arguments);\n\t},\n\thwb: function () {\n\t\treturn this.setSpace('hwb', arguments);\n\t},\n\tcmyk: function () {\n\t\treturn this.setSpace('cmyk', arguments);\n\t},\n\n\trgbArray: function () {\n\t\treturn this.values.rgb;\n\t},\n\thslArray: function () {\n\t\treturn this.values.hsl;\n\t},\n\thsvArray: function () {\n\t\treturn this.values.hsv;\n\t},\n\thwbArray: function () {\n\t\tvar values = this.values;\n\t\tif (values.alpha !== 1) {\n\t\t\treturn values.hwb.concat([values.alpha]);\n\t\t}\n\t\treturn values.hwb;\n\t},\n\tcmykArray: function () {\n\t\treturn this.values.cmyk;\n\t},\n\trgbaArray: function () {\n\t\tvar values = this.values;\n\t\treturn values.rgb.concat([values.alpha]);\n\t},\n\thslaArray: function () {\n\t\tvar values = this.values;\n\t\treturn values.hsl.concat([values.alpha]);\n\t},\n\talpha: function (val) {\n\t\tif (val === undefined) {\n\t\t\treturn this.values.alpha;\n\t\t}\n\t\tthis.setValues('alpha', val);\n\t\treturn this;\n\t},\n\n\tred: function (val) {\n\t\treturn this.setChannel('rgb', 0, val);\n\t},\n\tgreen: function (val) {\n\t\treturn this.setChannel('rgb', 1, val);\n\t},\n\tblue: function (val) {\n\t\treturn this.setChannel('rgb', 2, val);\n\t},\n\thue: function (val) {\n\t\tif (val) {\n\t\t\tval %= 360;\n\t\t\tval = val < 0 ? 360 + val : val;\n\t\t}\n\t\treturn this.setChannel('hsl', 0, val);\n\t},\n\tsaturation: function (val) {\n\t\treturn this.setChannel('hsl', 1, val);\n\t},\n\tlightness: function (val) {\n\t\treturn this.setChannel('hsl', 2, val);\n\t},\n\tsaturationv: function (val) {\n\t\treturn this.setChannel('hsv', 1, val);\n\t},\n\twhiteness: function (val) {\n\t\treturn this.setChannel('hwb', 1, val);\n\t},\n\tblackness: function (val) {\n\t\treturn this.setChannel('hwb', 2, val);\n\t},\n\tvalue: function (val) {\n\t\treturn this.setChannel('hsv', 2, val);\n\t},\n\tcyan: function (val) {\n\t\treturn this.setChannel('cmyk', 0, val);\n\t},\n\tmagenta: function (val) {\n\t\treturn this.setChannel('cmyk', 1, val);\n\t},\n\tyellow: function (val) {\n\t\treturn this.setChannel('cmyk', 2, val);\n\t},\n\tblack: function (val) {\n\t\treturn this.setChannel('cmyk', 3, val);\n\t},\n\n\thexString: function () {\n\t\treturn colorString.hexString(this.values.rgb);\n\t},\n\trgbString: function () {\n\t\treturn colorString.rgbString(this.values.rgb, this.values.alpha);\n\t},\n\trgbaString: function () {\n\t\treturn colorString.rgbaString(this.values.rgb, this.values.alpha);\n\t},\n\tpercentString: function () {\n\t\treturn colorString.percentString(this.values.rgb, this.values.alpha);\n\t},\n\thslString: function () {\n\t\treturn colorString.hslString(this.values.hsl, this.values.alpha);\n\t},\n\thslaString: function () {\n\t\treturn colorString.hslaString(this.values.hsl, this.values.alpha);\n\t},\n\thwbString: function () {\n\t\treturn colorString.hwbString(this.values.hwb, this.values.alpha);\n\t},\n\tkeyword: function () {\n\t\treturn colorString.keyword(this.values.rgb, this.values.alpha);\n\t},\n\n\trgbNumber: function () {\n\t\tvar rgb = this.values.rgb;\n\t\treturn (rgb[0] << 16) | (rgb[1] << 8) | rgb[2];\n\t},\n\n\tluminosity: function () {\n\t\t// http://www.w3.org/TR/WCAG20/#relativeluminancedef\n\t\tvar rgb = this.values.rgb;\n\t\tvar lum = [];\n\t\tfor (var i = 0; i < rgb.length; i++) {\n\t\t\tvar chan = rgb[i] / 255;\n\t\t\tlum[i] = (chan <= 0.03928) ? chan / 12.92 : Math.pow(((chan + 0.055) / 1.055), 2.4);\n\t\t}\n\t\treturn 0.2126 * lum[0] + 0.7152 * lum[1] + 0.0722 * lum[2];\n\t},\n\n\tcontrast: function (color2) {\n\t\t// http://www.w3.org/TR/WCAG20/#contrast-ratiodef\n\t\tvar lum1 = this.luminosity();\n\t\tvar lum2 = color2.luminosity();\n\t\tif (lum1 > lum2) {\n\t\t\treturn (lum1 + 0.05) / (lum2 + 0.05);\n\t\t}\n\t\treturn (lum2 + 0.05) / (lum1 + 0.05);\n\t},\n\n\tlevel: function (color2) {\n\t\tvar contrastRatio = this.contrast(color2);\n\t\tif (contrastRatio >= 7.1) {\n\t\t\treturn 'AAA';\n\t\t}\n\n\t\treturn (contrastRatio >= 4.5) ? 'AA' : '';\n\t},\n\n\tdark: function () {\n\t\t// YIQ equation from http://24ways.org/2010/calculating-color-contrast\n\t\tvar rgb = this.values.rgb;\n\t\tvar yiq = (rgb[0] * 299 + rgb[1] * 587 + rgb[2] * 114) / 1000;\n\t\treturn yiq < 128;\n\t},\n\n\tlight: function () {\n\t\treturn !this.dark();\n\t},\n\n\tnegate: function () {\n\t\tvar rgb = [];\n\t\tfor (var i = 0; i < 3; i++) {\n\t\t\trgb[i] = 255 - this.values.rgb[i];\n\t\t}\n\t\tthis.setValues('rgb', rgb);\n\t\treturn this;\n\t},\n\n\tlighten: function (ratio) {\n\t\tvar hsl = this.values.hsl;\n\t\thsl[2] += hsl[2] * ratio;\n\t\tthis.setValues('hsl', hsl);\n\t\treturn this;\n\t},\n\n\tdarken: function (ratio) {\n\t\tvar hsl = this.values.hsl;\n\t\thsl[2] -= hsl[2] * ratio;\n\t\tthis.setValues('hsl', hsl);\n\t\treturn this;\n\t},\n\n\tsaturate: function (ratio) {\n\t\tvar hsl = this.values.hsl;\n\t\thsl[1] += hsl[1] * ratio;\n\t\tthis.setValues('hsl', hsl);\n\t\treturn this;\n\t},\n\n\tdesaturate: function (ratio) {\n\t\tvar hsl = this.values.hsl;\n\t\thsl[1] -= hsl[1] * ratio;\n\t\tthis.setValues('hsl', hsl);\n\t\treturn this;\n\t},\n\n\twhiten: function (ratio) {\n\t\tvar hwb = this.values.hwb;\n\t\thwb[1] += hwb[1] * ratio;\n\t\tthis.setValues('hwb', hwb);\n\t\treturn this;\n\t},\n\n\tblacken: function (ratio) {\n\t\tvar hwb = this.values.hwb;\n\t\thwb[2] += hwb[2] * ratio;\n\t\tthis.setValues('hwb', hwb);\n\t\treturn this;\n\t},\n\n\tgreyscale: function () {\n\t\tvar rgb = this.values.rgb;\n\t\t// http://en.wikipedia.org/wiki/Grayscale#Converting_color_to_grayscale\n\t\tvar val = rgb[0] * 0.3 + rgb[1] * 0.59 + rgb[2] * 0.11;\n\t\tthis.setValues('rgb', [val, val, val]);\n\t\treturn this;\n\t},\n\n\tclearer: function (ratio) {\n\t\tvar alpha = this.values.alpha;\n\t\tthis.setValues('alpha', alpha - (alpha * ratio));\n\t\treturn this;\n\t},\n\n\topaquer: function (ratio) {\n\t\tvar alpha = this.values.alpha;\n\t\tthis.setValues('alpha', alpha + (alpha * ratio));\n\t\treturn this;\n\t},\n\n\trotate: function (degrees) {\n\t\tvar hsl = this.values.hsl;\n\t\tvar hue = (hsl[0] + degrees) % 360;\n\t\thsl[0] = hue < 0 ? 360 + hue : hue;\n\t\tthis.setValues('hsl', hsl);\n\t\treturn this;\n\t},\n\n\t/**\n\t * Ported from sass implementation in C\n\t * https://github.com/sass/libsass/blob/0e6b4a2850092356aa3ece07c6b249f0221caced/functions.cpp#L209\n\t */\n\tmix: function (mixinColor, weight) {\n\t\tvar color1 = this;\n\t\tvar color2 = mixinColor;\n\t\tvar p = weight === undefined ? 0.5 : weight;\n\n\t\tvar w = 2 * p - 1;\n\t\tvar a = color1.alpha() - color2.alpha();\n\n\t\tvar w1 = (((w * a === -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0;\n\t\tvar w2 = 1 - w1;\n\n\t\treturn this\n\t\t\t.rgb(\n\t\t\t\tw1 * color1.red() + w2 * color2.red(),\n\t\t\t\tw1 * color1.green() + w2 * color2.green(),\n\t\t\t\tw1 * color1.blue() + w2 * color2.blue()\n\t\t\t)\n\t\t\t.alpha(color1.alpha() * p + color2.alpha() * (1 - p));\n\t},\n\n\ttoJSON: function () {\n\t\treturn this.rgb();\n\t},\n\n\tclone: function () {\n\t\t// NOTE(SB): using node-clone creates a dependency to Buffer when using browserify,\n\t\t// making the final build way to big to embed in Chart.js. So let's do it manually,\n\t\t// assuming that values to clone are 1 dimension arrays containing only numbers,\n\t\t// except 'alpha' which is a number.\n\t\tvar result = new Color();\n\t\tvar source = this.values;\n\t\tvar target = result.values;\n\t\tvar value, type;\n\n\t\tfor (var prop in source) {\n\t\t\tif (source.hasOwnProperty(prop)) {\n\t\t\t\tvalue = source[prop];\n\t\t\t\ttype = ({}).toString.call(value);\n\t\t\t\tif (type === '[object Array]') {\n\t\t\t\t\ttarget[prop] = value.slice(0);\n\t\t\t\t} else if (type === '[object Number]') {\n\t\t\t\t\ttarget[prop] = value;\n\t\t\t\t} else {\n\t\t\t\t\tconsole.error('unexpected color value:', value);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn result;\n\t}\n};\n\nColor.prototype.spaces = {\n\trgb: ['red', 'green', 'blue'],\n\thsl: ['hue', 'saturation', 'lightness'],\n\thsv: ['hue', 'saturation', 'value'],\n\thwb: ['hue', 'whiteness', 'blackness'],\n\tcmyk: ['cyan', 'magenta', 'yellow', 'black']\n};\n\nColor.prototype.maxes = {\n\trgb: [255, 255, 255],\n\thsl: [360, 100, 100],\n\thsv: [360, 100, 100],\n\thwb: [360, 100, 100],\n\tcmyk: [100, 100, 100, 100]\n};\n\nColor.prototype.getValues = function (space) {\n\tvar values = this.values;\n\tvar vals = {};\n\n\tfor (var i = 0; i < space.length; i++) {\n\t\tvals[space.charAt(i)] = values[space][i];\n\t}\n\n\tif (values.alpha !== 1) {\n\t\tvals.a = values.alpha;\n\t}\n\n\t// {r: 255, g: 255, b: 255, a: 0.4}\n\treturn vals;\n};\n\nColor.prototype.setValues = function (space, vals) {\n\tvar values = this.values;\n\tvar spaces = this.spaces;\n\tvar maxes = this.maxes;\n\tvar alpha = 1;\n\tvar i;\n\n\tthis.valid = true;\n\n\tif (space === 'alpha') {\n\t\talpha = vals;\n\t} else if (vals.length) {\n\t\t// [10, 10, 10]\n\t\tvalues[space] = vals.slice(0, space.length);\n\t\talpha = vals[space.length];\n\t} else if (vals[space.charAt(0)] !== undefined) {\n\t\t// {r: 10, g: 10, b: 10}\n\t\tfor (i = 0; i < space.length; i++) {\n\t\t\tvalues[space][i] = vals[space.charAt(i)];\n\t\t}\n\n\t\talpha = vals.a;\n\t} else if (vals[spaces[space][0]] !== undefined) {\n\t\t// {red: 10, green: 10, blue: 10}\n\t\tvar chans = spaces[space];\n\n\t\tfor (i = 0; i < space.length; i++) {\n\t\t\tvalues[space][i] = vals[chans[i]];\n\t\t}\n\n\t\talpha = vals.alpha;\n\t}\n\n\tvalues.alpha = Math.max(0, Math.min(1, (alpha === undefined ? values.alpha : alpha)));\n\n\tif (space === 'alpha') {\n\t\treturn false;\n\t}\n\n\tvar capped;\n\n\t// cap values of the space prior converting all values\n\tfor (i = 0; i < space.length; i++) {\n\t\tcapped = Math.max(0, Math.min(maxes[space][i], values[space][i]));\n\t\tvalues[space][i] = Math.round(capped);\n\t}\n\n\t// convert to all the other color spaces\n\tfor (var sname in spaces) {\n\t\tif (sname !== space) {\n\t\t\tvalues[sname] = colorConvert[space][sname](values[space]);\n\t\t}\n\t}\n\n\treturn true;\n};\n\nColor.prototype.setSpace = function (space, args) {\n\tvar vals = args[0];\n\n\tif (vals === undefined) {\n\t\t// color.rgb()\n\t\treturn this.getValues(space);\n\t}\n\n\t// color.rgb(10, 10, 10)\n\tif (typeof vals === 'number') {\n\t\tvals = Array.prototype.slice.call(args);\n\t}\n\n\tthis.setValues(space, vals);\n\treturn this;\n};\n\nColor.prototype.setChannel = function (space, index, val) {\n\tvar svalues = this.values[space];\n\tif (val === undefined) {\n\t\t// color.red()\n\t\treturn svalues[index];\n\t} else if (val === svalues[index]) {\n\t\t// color.red(color.red())\n\t\treturn this;\n\t}\n\n\t// color.red(100)\n\tsvalues[index] = val;\n\tthis.setValues(space, svalues);\n\n\treturn this;\n};\n\nif (typeof window !== 'undefined') {\n\twindow.Color = Color;\n}\n\nvar chartjsColor = Color;\n\nfunction isValidKey(key) {\r\n\treturn ['__proto__', 'prototype', 'constructor'].indexOf(key) === -1;\r\n}\r\n\r\n/**\r\n * @namespace Chart.helpers\r\n */\r\nvar helpers = {\r\n\t/**\r\n\t * An empty function that can be used, for example, for optional callback.\r\n\t */\r\n\tnoop: function() {},\r\n\r\n\t/**\r\n\t * Returns a unique id, sequentially generated from a global variable.\r\n\t * @returns {number}\r\n\t * @function\r\n\t */\r\n\tuid: (function() {\r\n\t\tvar id = 0;\r\n\t\treturn function() {\r\n\t\t\treturn id++;\r\n\t\t};\r\n\t}()),\r\n\r\n\t/**\r\n\t * Returns true if `value` is neither null nor undefined, else returns false.\r\n\t * @param {*} value - The value to test.\r\n\t * @returns {boolean}\r\n\t * @since 2.7.0\r\n\t */\r\n\tisNullOrUndef: function(value) {\r\n\t\treturn value === null || typeof value === 'undefined';\r\n\t},\r\n\r\n\t/**\r\n\t * Returns true if `value` is an array (including typed arrays), else returns false.\r\n\t * @param {*} value - The value to test.\r\n\t * @returns {boolean}\r\n\t * @function\r\n\t */\r\n\tisArray: function(value) {\r\n\t\tif (Array.isArray && Array.isArray(value)) {\r\n\t\t\treturn true;\r\n\t\t}\r\n\t\tvar type = Object.prototype.toString.call(value);\r\n\t\tif (type.substr(0, 7) === '[object' && type.substr(-6) === 'Array]') {\r\n\t\t\treturn true;\r\n\t\t}\r\n\t\treturn false;\r\n\t},\r\n\r\n\t/**\r\n\t * Returns true if `value` is an object (excluding null), else returns false.\r\n\t * @param {*} value - The value to test.\r\n\t * @returns {boolean}\r\n\t * @since 2.7.0\r\n\t */\r\n\tisObject: function(value) {\r\n\t\treturn value !== null && Object.prototype.toString.call(value) === '[object Object]';\r\n\t},\r\n\r\n\t/**\r\n\t * Returns true if `value` is a finite number, else returns false\r\n\t * @param {*} value - The value to test.\r\n\t * @returns {boolean}\r\n\t */\r\n\tisFinite: function(value) {\r\n\t\treturn (typeof value === 'number' || value instanceof Number) && isFinite(value);\r\n\t},\r\n\r\n\t/**\r\n\t * Returns `value` if defined, else returns `defaultValue`.\r\n\t * @param {*} value - The value to return if defined.\r\n\t * @param {*} defaultValue - The value to return if `value` is undefined.\r\n\t * @returns {*}\r\n\t */\r\n\tvalueOrDefault: function(value, defaultValue) {\r\n\t\treturn typeof value === 'undefined' ? defaultValue : value;\r\n\t},\r\n\r\n\t/**\r\n\t * Returns value at the given `index` in array if defined, else returns `defaultValue`.\r\n\t * @param {Array} value - The array to lookup for value at `index`.\r\n\t * @param {number} index - The index in `value` to lookup for value.\r\n\t * @param {*} defaultValue - The value to return if `value[index]` is undefined.\r\n\t * @returns {*}\r\n\t */\r\n\tvalueAtIndexOrDefault: function(value, index, defaultValue) {\r\n\t\treturn helpers.valueOrDefault(helpers.isArray(value) ? value[index] : value, defaultValue);\r\n\t},\r\n\r\n\t/**\r\n\t * Calls `fn` with the given `args` in the scope defined by `thisArg` and returns the\r\n\t * value returned by `fn`. If `fn` is not a function, this method returns undefined.\r\n\t * @param {function} fn - The function to call.\r\n\t * @param {Array|undefined|null} args - The arguments with which `fn` should be called.\r\n\t * @param {object} [thisArg] - The value of `this` provided for the call to `fn`.\r\n\t * @returns {*}\r\n\t */\r\n\tcallback: function(fn, args, thisArg) {\r\n\t\tif (fn && typeof fn.call === 'function') {\r\n\t\t\treturn fn.apply(thisArg, args);\r\n\t\t}\r\n\t},\r\n\r\n\t/**\r\n\t * Note(SB) for performance sake, this method should only be used when loopable type\r\n\t * is unknown or in none intensive code (not called often and small loopable). Else\r\n\t * it's preferable to use a regular for() loop and save extra function calls.\r\n\t * @param {object|Array} loopable - The object or array to be iterated.\r\n\t * @param {function} fn - The function to call for each item.\r\n\t * @param {object} [thisArg] - The value of `this` provided for the call to `fn`.\r\n\t * @param {boolean} [reverse] - If true, iterates backward on the loopable.\r\n\t */\r\n\teach: function(loopable, fn, thisArg, reverse) {\r\n\t\tvar i, len, keys;\r\n\t\tif (helpers.isArray(loopable)) {\r\n\t\t\tlen = loopable.length;\r\n\t\t\tif (reverse) {\r\n\t\t\t\tfor (i = len - 1; i >= 0; i--) {\r\n\t\t\t\t\tfn.call(thisArg, loopable[i], i);\r\n\t\t\t\t}\r\n\t\t\t} else {\r\n\t\t\t\tfor (i = 0; i < len; i++) {\r\n\t\t\t\t\tfn.call(thisArg, loopable[i], i);\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t} else if (helpers.isObject(loopable)) {\r\n\t\t\tkeys = Object.keys(loopable);\r\n\t\t\tlen = keys.length;\r\n\t\t\tfor (i = 0; i < len; i++) {\r\n\t\t\t\tfn.call(thisArg, loopable[keys[i]], keys[i]);\r\n\t\t\t}\r\n\t\t}\r\n\t},\r\n\r\n\t/**\r\n\t * Returns true if the `a0` and `a1` arrays have the same content, else returns false.\r\n\t * @see https://stackoverflow.com/a/14853974\r\n\t * @param {Array} a0 - The array to compare\r\n\t * @param {Array} a1 - The array to compare\r\n\t * @returns {boolean}\r\n\t */\r\n\tarrayEquals: function(a0, a1) {\r\n\t\tvar i, ilen, v0, v1;\r\n\r\n\t\tif (!a0 || !a1 || a0.length !== a1.length) {\r\n\t\t\treturn false;\r\n\t\t}\r\n\r\n\t\tfor (i = 0, ilen = a0.length; i < ilen; ++i) {\r\n\t\t\tv0 = a0[i];\r\n\t\t\tv1 = a1[i];\r\n\r\n\t\t\tif (v0 instanceof Array && v1 instanceof Array) {\r\n\t\t\t\tif (!helpers.arrayEquals(v0, v1)) {\r\n\t\t\t\t\treturn false;\r\n\t\t\t\t}\r\n\t\t\t} else if (v0 !== v1) {\r\n\t\t\t\t// NOTE: two different object instances will never be equal: {x:20} != {x:20}\r\n\t\t\t\treturn false;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\t},\r\n\r\n\t/**\r\n\t * Returns a deep copy of `source` without keeping references on objects and arrays.\r\n\t * @param {*} source - The value to clone.\r\n\t * @returns {*}\r\n\t */\r\n\tclone: function(source) {\r\n\t\tif (helpers.isArray(source)) {\r\n\t\t\treturn source.map(helpers.clone);\r\n\t\t}\r\n\r\n\t\tif (helpers.isObject(source)) {\r\n\t\t\tvar target = Object.create(source);\r\n\t\t\tvar keys = Object.keys(source);\r\n\t\t\tvar klen = keys.length;\r\n\t\t\tvar k = 0;\r\n\r\n\t\t\tfor (; k < klen; ++k) {\r\n\t\t\t\ttarget[keys[k]] = helpers.clone(source[keys[k]]);\r\n\t\t\t}\r\n\r\n\t\t\treturn target;\r\n\t\t}\r\n\r\n\t\treturn source;\r\n\t},\r\n\r\n\t/**\r\n\t * The default merger when Chart.helpers.merge is called without merger option.\r\n\t * Note(SB): also used by mergeConfig and mergeScaleConfig as fallback.\r\n\t * @private\r\n\t */\r\n\t_merger: function(key, target, source, options) {\r\n\t\tif (!isValidKey(key)) {\r\n\t\t\t// We want to ensure we do not copy prototypes over\r\n\t\t\t// as this can pollute global namespaces\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\tvar tval = target[key];\r\n\t\tvar sval = source[key];\r\n\r\n\t\tif (helpers.isObject(tval) && helpers.isObject(sval)) {\r\n\t\t\thelpers.merge(tval, sval, options);\r\n\t\t} else {\r\n\t\t\ttarget[key] = helpers.clone(sval);\r\n\t\t}\r\n\t},\r\n\r\n\t/**\r\n\t * Merges source[key] in target[key] only if target[key] is undefined.\r\n\t * @private\r\n\t */\r\n\t_mergerIf: function(key, target, source) {\r\n\t\tif (!isValidKey(key)) {\r\n\t\t\t// We want to ensure we do not copy prototypes over\r\n\t\t\t// as this can pollute global namespaces\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\tvar tval = target[key];\r\n\t\tvar sval = source[key];\r\n\r\n\t\tif (helpers.isObject(tval) && helpers.isObject(sval)) {\r\n\t\t\thelpers.mergeIf(tval, sval);\r\n\t\t} else if (!target.hasOwnProperty(key)) {\r\n\t\t\ttarget[key] = helpers.clone(sval);\r\n\t\t}\r\n\t},\r\n\r\n\t/**\r\n\t * Recursively deep copies `source` properties into `target` with the given `options`.\r\n\t * IMPORTANT: `target` is not cloned and will be updated with `source` properties.\r\n\t * @param {object} target - The target object in which all sources are merged into.\r\n\t * @param {object|object[]} source - Object(s) to merge into `target`.\r\n\t * @param {object} [options] - Merging options:\r\n\t * @param {function} [options.merger] - The merge method (key, target, source, options)\r\n\t * @returns {object} The `target` object.\r\n\t */\r\n\tmerge: function(target, source, options) {\r\n\t\tvar sources = helpers.isArray(source) ? source : [source];\r\n\t\tvar ilen = sources.length;\r\n\t\tvar merge, i, keys, klen, k;\r\n\r\n\t\tif (!helpers.isObject(target)) {\r\n\t\t\treturn target;\r\n\t\t}\r\n\r\n\t\toptions = options || {};\r\n\t\tmerge = options.merger || helpers._merger;\r\n\r\n\t\tfor (i = 0; i < ilen; ++i) {\r\n\t\t\tsource = sources[i];\r\n\t\t\tif (!helpers.isObject(source)) {\r\n\t\t\t\tcontinue;\r\n\t\t\t}\r\n\r\n\t\t\tkeys = Object.keys(source);\r\n\t\t\tfor (k = 0, klen = keys.length; k < klen; ++k) {\r\n\t\t\t\tmerge(keys[k], target, source, options);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn target;\r\n\t},\r\n\r\n\t/**\r\n\t * Recursively deep copies `source` properties into `target` *only* if not defined in target.\r\n\t * IMPORTANT: `target` is not cloned and will be updated with `source` properties.\r\n\t * @param {object} target - The target object in which all sources are merged into.\r\n\t * @param {object|object[]} source - Object(s) to merge into `target`.\r\n\t * @returns {object} The `target` object.\r\n\t */\r\n\tmergeIf: function(target, source) {\r\n\t\treturn helpers.merge(target, source, {merger: helpers._mergerIf});\r\n\t},\r\n\r\n\t/**\r\n\t * Applies the contents of two or more objects together into the first object.\r\n\t * @param {object} target - The target object in which all objects are merged into.\r\n\t * @param {object} arg1 - Object containing additional properties to merge in target.\r\n\t * @param {object} argN - Additional objects containing properties to merge in target.\r\n\t * @returns {object} The `target` object.\r\n\t */\r\n\textend: Object.assign || function(target) {\r\n\t\treturn helpers.merge(target, [].slice.call(arguments, 1), {\r\n\t\t\tmerger: function(key, dst, src) {\r\n\t\t\t\tdst[key] = src[key];\r\n\t\t\t}\r\n\t\t});\r\n\t},\r\n\r\n\t/**\r\n\t * Basic javascript inheritance based on the model created in Backbone.js\r\n\t */\r\n\tinherits: function(extensions) {\r\n\t\tvar me = this;\r\n\t\tvar ChartElement = (extensions && extensions.hasOwnProperty('constructor')) ? extensions.constructor : function() {\r\n\t\t\treturn me.apply(this, arguments);\r\n\t\t};\r\n\r\n\t\tvar Surrogate = function() {\r\n\t\t\tthis.constructor = ChartElement;\r\n\t\t};\r\n\r\n\t\tSurrogate.prototype = me.prototype;\r\n\t\tChartElement.prototype = new Surrogate();\r\n\t\tChartElement.extend = helpers.inherits;\r\n\r\n\t\tif (extensions) {\r\n\t\t\thelpers.extend(ChartElement.prototype, extensions);\r\n\t\t}\r\n\r\n\t\tChartElement.__super__ = me.prototype;\r\n\t\treturn ChartElement;\r\n\t},\r\n\r\n\t_deprecated: function(scope, value, previous, current) {\r\n\t\tif (value !== undefined) {\r\n\t\t\tconsole.warn(scope + ': \"' + previous +\r\n\t\t\t\t'\" is deprecated. Please use \"' + current + '\" instead');\r\n\t\t}\r\n\t}\r\n};\r\n\r\nvar helpers_core = helpers;\r\n\r\n// DEPRECATIONS\r\n\r\n/**\r\n * Provided for backward compatibility, use Chart.helpers.callback instead.\r\n * @function Chart.helpers.callCallback\r\n * @deprecated since version 2.6.0\r\n * @todo remove at version 3\r\n * @private\r\n */\r\nhelpers.callCallback = helpers.callback;\r\n\r\n/**\r\n * Provided for backward compatibility, use Array.prototype.indexOf instead.\r\n * Array.prototype.indexOf compatibility: Chrome, Opera, Safari, FF1.5+, IE9+\r\n * @function Chart.helpers.indexOf\r\n * @deprecated since version 2.7.0\r\n * @todo remove at version 3\r\n * @private\r\n */\r\nhelpers.indexOf = function(array, item, fromIndex) {\r\n\treturn Array.prototype.indexOf.call(array, item, fromIndex);\r\n};\r\n\r\n/**\r\n * Provided for backward compatibility, use Chart.helpers.valueOrDefault instead.\r\n * @function Chart.helpers.getValueOrDefault\r\n * @deprecated since version 2.7.0\r\n * @todo remove at version 3\r\n * @private\r\n */\r\nhelpers.getValueOrDefault = helpers.valueOrDefault;\r\n\r\n/**\r\n * Provided for backward compatibility, use Chart.helpers.valueAtIndexOrDefault instead.\r\n * @function Chart.helpers.getValueAtIndexOrDefault\r\n * @deprecated since version 2.7.0\r\n * @todo remove at version 3\r\n * @private\r\n */\r\nhelpers.getValueAtIndexOrDefault = helpers.valueAtIndexOrDefault;\n\n/**\r\n * Easing functions adapted from Robert Penner's easing equations.\r\n * @namespace Chart.helpers.easingEffects\r\n * @see http://www.robertpenner.com/easing/\r\n */\r\nvar effects = {\r\n\tlinear: function(t) {\r\n\t\treturn t;\r\n\t},\r\n\r\n\teaseInQuad: function(t) {\r\n\t\treturn t * t;\r\n\t},\r\n\r\n\teaseOutQuad: function(t) {\r\n\t\treturn -t * (t - 2);\r\n\t},\r\n\r\n\teaseInOutQuad: function(t) {\r\n\t\tif ((t /= 0.5) < 1) {\r\n\t\t\treturn 0.5 * t * t;\r\n\t\t}\r\n\t\treturn -0.5 * ((--t) * (t - 2) - 1);\r\n\t},\r\n\r\n\teaseInCubic: function(t) {\r\n\t\treturn t * t * t;\r\n\t},\r\n\r\n\teaseOutCubic: function(t) {\r\n\t\treturn (t = t - 1) * t * t + 1;\r\n\t},\r\n\r\n\teaseInOutCubic: function(t) {\r\n\t\tif ((t /= 0.5) < 1) {\r\n\t\t\treturn 0.5 * t * t * t;\r\n\t\t}\r\n\t\treturn 0.5 * ((t -= 2) * t * t + 2);\r\n\t},\r\n\r\n\teaseInQuart: function(t) {\r\n\t\treturn t * t * t * t;\r\n\t},\r\n\r\n\teaseOutQuart: function(t) {\r\n\t\treturn -((t = t - 1) * t * t * t - 1);\r\n\t},\r\n\r\n\teaseInOutQuart: function(t) {\r\n\t\tif ((t /= 0.5) < 1) {\r\n\t\t\treturn 0.5 * t * t * t * t;\r\n\t\t}\r\n\t\treturn -0.5 * ((t -= 2) * t * t * t - 2);\r\n\t},\r\n\r\n\teaseInQuint: function(t) {\r\n\t\treturn t * t * t * t * t;\r\n\t},\r\n\r\n\teaseOutQuint: function(t) {\r\n\t\treturn (t = t - 1) * t * t * t * t + 1;\r\n\t},\r\n\r\n\teaseInOutQuint: function(t) {\r\n\t\tif ((t /= 0.5) < 1) {\r\n\t\t\treturn 0.5 * t * t * t * t * t;\r\n\t\t}\r\n\t\treturn 0.5 * ((t -= 2) * t * t * t * t + 2);\r\n\t},\r\n\r\n\teaseInSine: function(t) {\r\n\t\treturn -Math.cos(t * (Math.PI / 2)) + 1;\r\n\t},\r\n\r\n\teaseOutSine: function(t) {\r\n\t\treturn Math.sin(t * (Math.PI / 2));\r\n\t},\r\n\r\n\teaseInOutSine: function(t) {\r\n\t\treturn -0.5 * (Math.cos(Math.PI * t) - 1);\r\n\t},\r\n\r\n\teaseInExpo: function(t) {\r\n\t\treturn (t === 0) ? 0 : Math.pow(2, 10 * (t - 1));\r\n\t},\r\n\r\n\teaseOutExpo: function(t) {\r\n\t\treturn (t === 1) ? 1 : -Math.pow(2, -10 * t) + 1;\r\n\t},\r\n\r\n\teaseInOutExpo: function(t) {\r\n\t\tif (t === 0) {\r\n\t\t\treturn 0;\r\n\t\t}\r\n\t\tif (t === 1) {\r\n\t\t\treturn 1;\r\n\t\t}\r\n\t\tif ((t /= 0.5) < 1) {\r\n\t\t\treturn 0.5 * Math.pow(2, 10 * (t - 1));\r\n\t\t}\r\n\t\treturn 0.5 * (-Math.pow(2, -10 * --t) + 2);\r\n\t},\r\n\r\n\teaseInCirc: function(t) {\r\n\t\tif (t >= 1) {\r\n\t\t\treturn t;\r\n\t\t}\r\n\t\treturn -(Math.sqrt(1 - t * t) - 1);\r\n\t},\r\n\r\n\teaseOutCirc: function(t) {\r\n\t\treturn Math.sqrt(1 - (t = t - 1) * t);\r\n\t},\r\n\r\n\teaseInOutCirc: function(t) {\r\n\t\tif ((t /= 0.5) < 1) {\r\n\t\t\treturn -0.5 * (Math.sqrt(1 - t * t) - 1);\r\n\t\t}\r\n\t\treturn 0.5 * (Math.sqrt(1 - (t -= 2) * t) + 1);\r\n\t},\r\n\r\n\teaseInElastic: function(t) {\r\n\t\tvar s = 1.70158;\r\n\t\tvar p = 0;\r\n\t\tvar a = 1;\r\n\t\tif (t === 0) {\r\n\t\t\treturn 0;\r\n\t\t}\r\n\t\tif (t === 1) {\r\n\t\t\treturn 1;\r\n\t\t}\r\n\t\tif (!p) {\r\n\t\t\tp = 0.3;\r\n\t\t}\r\n\t\tif (a < 1) {\r\n\t\t\ta = 1;\r\n\t\t\ts = p / 4;\r\n\t\t} else {\r\n\t\t\ts = p / (2 * Math.PI) * Math.asin(1 / a);\r\n\t\t}\r\n\t\treturn -(a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t - s) * (2 * Math.PI) / p));\r\n\t},\r\n\r\n\teaseOutElastic: function(t) {\r\n\t\tvar s = 1.70158;\r\n\t\tvar p = 0;\r\n\t\tvar a = 1;\r\n\t\tif (t === 0) {\r\n\t\t\treturn 0;\r\n\t\t}\r\n\t\tif (t === 1) {\r\n\t\t\treturn 1;\r\n\t\t}\r\n\t\tif (!p) {\r\n\t\t\tp = 0.3;\r\n\t\t}\r\n\t\tif (a < 1) {\r\n\t\t\ta = 1;\r\n\t\t\ts = p / 4;\r\n\t\t} else {\r\n\t\t\ts = p / (2 * Math.PI) * Math.asin(1 / a);\r\n\t\t}\r\n\t\treturn a * Math.pow(2, -10 * t) * Math.sin((t - s) * (2 * Math.PI) / p) + 1;\r\n\t},\r\n\r\n\teaseInOutElastic: function(t) {\r\n\t\tvar s = 1.70158;\r\n\t\tvar p = 0;\r\n\t\tvar a = 1;\r\n\t\tif (t === 0) {\r\n\t\t\treturn 0;\r\n\t\t}\r\n\t\tif ((t /= 0.5) === 2) {\r\n\t\t\treturn 1;\r\n\t\t}\r\n\t\tif (!p) {\r\n\t\t\tp = 0.45;\r\n\t\t}\r\n\t\tif (a < 1) {\r\n\t\t\ta = 1;\r\n\t\t\ts = p / 4;\r\n\t\t} else {\r\n\t\t\ts = p / (2 * Math.PI) * Math.asin(1 / a);\r\n\t\t}\r\n\t\tif (t < 1) {\r\n\t\t\treturn -0.5 * (a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t - s) * (2 * Math.PI) / p));\r\n\t\t}\r\n\t\treturn a * Math.pow(2, -10 * (t -= 1)) * Math.sin((t - s) * (2 * Math.PI) / p) * 0.5 + 1;\r\n\t},\r\n\teaseInBack: function(t) {\r\n\t\tvar s = 1.70158;\r\n\t\treturn t * t * ((s + 1) * t - s);\r\n\t},\r\n\r\n\teaseOutBack: function(t) {\r\n\t\tvar s = 1.70158;\r\n\t\treturn (t = t - 1) * t * ((s + 1) * t + s) + 1;\r\n\t},\r\n\r\n\teaseInOutBack: function(t) {\r\n\t\tvar s = 1.70158;\r\n\t\tif ((t /= 0.5) < 1) {\r\n\t\t\treturn 0.5 * (t * t * (((s *= (1.525)) + 1) * t - s));\r\n\t\t}\r\n\t\treturn 0.5 * ((t -= 2) * t * (((s *= (1.525)) + 1) * t + s) + 2);\r\n\t},\r\n\r\n\teaseInBounce: function(t) {\r\n\t\treturn 1 - effects.easeOutBounce(1 - t);\r\n\t},\r\n\r\n\teaseOutBounce: function(t) {\r\n\t\tif (t < (1 / 2.75)) {\r\n\t\t\treturn 7.5625 * t * t;\r\n\t\t}\r\n\t\tif (t < (2 / 2.75)) {\r\n\t\t\treturn 7.5625 * (t -= (1.5 / 2.75)) * t + 0.75;\r\n\t\t}\r\n\t\tif (t < (2.5 / 2.75)) {\r\n\t\t\treturn 7.5625 * (t -= (2.25 / 2.75)) * t + 0.9375;\r\n\t\t}\r\n\t\treturn 7.5625 * (t -= (2.625 / 2.75)) * t + 0.984375;\r\n\t},\r\n\r\n\teaseInOutBounce: function(t) {\r\n\t\tif (t < 0.5) {\r\n\t\t\treturn effects.easeInBounce(t * 2) * 0.5;\r\n\t\t}\r\n\t\treturn effects.easeOutBounce(t * 2 - 1) * 0.5 + 0.5;\r\n\t}\r\n};\r\n\r\nvar helpers_easing = {\r\n\teffects: effects\r\n};\r\n\r\n// DEPRECATIONS\r\n\r\n/**\r\n * Provided for backward compatibility, use Chart.helpers.easing.effects instead.\r\n * @function Chart.helpers.easingEffects\r\n * @deprecated since version 2.7.0\r\n * @todo remove at version 3\r\n * @private\r\n */\r\nhelpers_core.easingEffects = effects;\n\nvar PI = Math.PI;\r\nvar RAD_PER_DEG = PI / 180;\r\nvar DOUBLE_PI = PI * 2;\r\nvar HALF_PI = PI / 2;\r\nvar QUARTER_PI = PI / 4;\r\nvar TWO_THIRDS_PI = PI * 2 / 3;\r\n\r\n/**\r\n * @namespace Chart.helpers.canvas\r\n */\r\nvar exports$1 = {\r\n\t/**\r\n\t * Clears the entire canvas associated to the given `chart`.\r\n\t * @param {Chart} chart - The chart for which to clear the canvas.\r\n\t */\r\n\tclear: function(chart) {\r\n\t\tchart.ctx.clearRect(0, 0, chart.width, chart.height);\r\n\t},\r\n\r\n\t/**\r\n\t * Creates a \"path\" for a rectangle with rounded corners at position (x, y) with a\r\n\t * given size (width, height) and the same `radius` for all corners.\r\n\t * @param {CanvasRenderingContext2D} ctx - The canvas 2D Context.\r\n\t * @param {number} x - The x axis of the coordinate for the rectangle starting point.\r\n\t * @param {number} y - The y axis of the coordinate for the rectangle starting point.\r\n\t * @param {number} width - The rectangle's width.\r\n\t * @param {number} height - The rectangle's height.\r\n\t * @param {number} radius - The rounded amount (in pixels) for the four corners.\r\n\t * @todo handle `radius` as top-left, top-right, bottom-right, bottom-left array/object?\r\n\t */\r\n\troundedRect: function(ctx, x, y, width, height, radius) {\r\n\t\tif (radius) {\r\n\t\t\tvar r = Math.min(radius, height / 2, width / 2);\r\n\t\t\tvar left = x + r;\r\n\t\t\tvar top = y + r;\r\n\t\t\tvar right = x + width - r;\r\n\t\t\tvar bottom = y + height - r;\r\n\r\n\t\t\tctx.moveTo(x, top);\r\n\t\t\tif (left < right && top < bottom) {\r\n\t\t\t\tctx.arc(left, top, r, -PI, -HALF_PI);\r\n\t\t\t\tctx.arc(right, top, r, -HALF_PI, 0);\r\n\t\t\t\tctx.arc(right, bottom, r, 0, HALF_PI);\r\n\t\t\t\tctx.arc(left, bottom, r, HALF_PI, PI);\r\n\t\t\t} else if (left < right) {\r\n\t\t\t\tctx.moveTo(left, y);\r\n\t\t\t\tctx.arc(right, top, r, -HALF_PI, HALF_PI);\r\n\t\t\t\tctx.arc(left, top, r, HALF_PI, PI + HALF_PI);\r\n\t\t\t} else if (top < bottom) {\r\n\t\t\t\tctx.arc(left, top, r, -PI, 0);\r\n\t\t\t\tctx.arc(left, bottom, r, 0, PI);\r\n\t\t\t} else {\r\n\t\t\t\tctx.arc(left, top, r, -PI, PI);\r\n\t\t\t}\r\n\t\t\tctx.closePath();\r\n\t\t\tctx.moveTo(x, y);\r\n\t\t} else {\r\n\t\t\tctx.rect(x, y, width, height);\r\n\t\t}\r\n\t},\r\n\r\n\tdrawPoint: function(ctx, style, radius, x, y, rotation) {\r\n\t\tvar type, xOffset, yOffset, size, cornerRadius;\r\n\t\tvar rad = (rotation || 0) * RAD_PER_DEG;\r\n\r\n\t\tif (style && typeof style === 'object') {\r\n\t\t\ttype = style.toString();\r\n\t\t\tif (type === '[object HTMLImageElement]' || type === '[object HTMLCanvasElement]') {\r\n\t\t\t\tctx.save();\r\n\t\t\t\tctx.translate(x, y);\r\n\t\t\t\tctx.rotate(rad);\r\n\t\t\t\tctx.drawImage(style, -style.width / 2, -style.height / 2, style.width, style.height);\r\n\t\t\t\tctx.restore();\r\n\t\t\t\treturn;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tif (isNaN(radius) || radius <= 0) {\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\tctx.beginPath();\r\n\r\n\t\tswitch (style) {\r\n\t\t// Default includes circle\r\n\t\tdefault:\r\n\t\t\tctx.arc(x, y, radius, 0, DOUBLE_PI);\r\n\t\t\tctx.closePath();\r\n\t\t\tbreak;\r\n\t\tcase 'triangle':\r\n\t\t\tctx.moveTo(x + Math.sin(rad) * radius, y - Math.cos(rad) * radius);\r\n\t\t\trad += TWO_THIRDS_PI;\r\n\t\t\tctx.lineTo(x + Math.sin(rad) * radius, y - Math.cos(rad) * radius);\r\n\t\t\trad += TWO_THIRDS_PI;\r\n\t\t\tctx.lineTo(x + Math.sin(rad) * radius, y - Math.cos(rad) * radius);\r\n\t\t\tctx.closePath();\r\n\t\t\tbreak;\r\n\t\tcase 'rectRounded':\r\n\t\t\t// NOTE: the rounded rect implementation changed to use `arc` instead of\r\n\t\t\t// `quadraticCurveTo` since it generates better results when rect is\r\n\t\t\t// almost a circle. 0.516 (instead of 0.5) produces results with visually\r\n\t\t\t// closer proportion to the previous impl and it is inscribed in the\r\n\t\t\t// circle with `radius`. For more details, see the following PRs:\r\n\t\t\t// https://github.com/chartjs/Chart.js/issues/5597\r\n\t\t\t// https://github.com/chartjs/Chart.js/issues/5858\r\n\t\t\tcornerRadius = radius * 0.516;\r\n\t\t\tsize = radius - cornerRadius;\r\n\t\t\txOffset = Math.cos(rad + QUARTER_PI) * size;\r\n\t\t\tyOffset = Math.sin(rad + QUARTER_PI) * size;\r\n\t\t\tctx.arc(x - xOffset, y - yOffset, cornerRadius, rad - PI, rad - HALF_PI);\r\n\t\t\tctx.arc(x + yOffset, y - xOffset, cornerRadius, rad - HALF_PI, rad);\r\n\t\t\tctx.arc(x + xOffset, y + yOffset, cornerRadius, rad, rad + HALF_PI);\r\n\t\t\tctx.arc(x - yOffset, y + xOffset, cornerRadius, rad + HALF_PI, rad + PI);\r\n\t\t\tctx.closePath();\r\n\t\t\tbreak;\r\n\t\tcase 'rect':\r\n\t\t\tif (!rotation) {\r\n\t\t\t\tsize = Math.SQRT1_2 * radius;\r\n\t\t\t\tctx.rect(x - size, y - size, 2 * size, 2 * size);\r\n\t\t\t\tbreak;\r\n\t\t\t}\r\n\t\t\trad += QUARTER_PI;\r\n\t\t\t/* falls through */\r\n\t\tcase 'rectRot':\r\n\t\t\txOffset = Math.cos(rad) * radius;\r\n\t\t\tyOffset = Math.sin(rad) * radius;\r\n\t\t\tctx.moveTo(x - xOffset, y - yOffset);\r\n\t\t\tctx.lineTo(x + yOffset, y - xOffset);\r\n\t\t\tctx.lineTo(x + xOffset, y + yOffset);\r\n\t\t\tctx.lineTo(x - yOffset, y + xOffset);\r\n\t\t\tctx.closePath();\r\n\t\t\tbreak;\r\n\t\tcase 'crossRot':\r\n\t\t\trad += QUARTER_PI;\r\n\t\t\t/* falls through */\r\n\t\tcase 'cross':\r\n\t\t\txOffset = Math.cos(rad) * radius;\r\n\t\t\tyOffset = Math.sin(rad) * radius;\r\n\t\t\tctx.moveTo(x - xOffset, y - yOffset);\r\n\t\t\tctx.lineTo(x + xOffset, y + yOffset);\r\n\t\t\tctx.moveTo(x + yOffset, y - xOffset);\r\n\t\t\tctx.lineTo(x - yOffset, y + xOffset);\r\n\t\t\tbreak;\r\n\t\tcase 'star':\r\n\t\t\txOffset = Math.cos(rad) * radius;\r\n\t\t\tyOffset = Math.sin(rad) * radius;\r\n\t\t\tctx.moveTo(x - xOffset, y - yOffset);\r\n\t\t\tctx.lineTo(x + xOffset, y + yOffset);\r\n\t\t\tctx.moveTo(x + yOffset, y - xOffset);\r\n\t\t\tctx.lineTo(x - yOffset, y + xOffset);\r\n\t\t\trad += QUARTER_PI;\r\n\t\t\txOffset = Math.cos(rad) * radius;\r\n\t\t\tyOffset = Math.sin(rad) * radius;\r\n\t\t\tctx.moveTo(x - xOffset, y - yOffset);\r\n\t\t\tctx.lineTo(x + xOffset, y + yOffset);\r\n\t\t\tctx.moveTo(x + yOffset, y - xOffset);\r\n\t\t\tctx.lineTo(x - yOffset, y + xOffset);\r\n\t\t\tbreak;\r\n\t\tcase 'line':\r\n\t\t\txOffset = Math.cos(rad) * radius;\r\n\t\t\tyOffset = Math.sin(rad) * radius;\r\n\t\t\tctx.moveTo(x - xOffset, y - yOffset);\r\n\t\t\tctx.lineTo(x + xOffset, y + yOffset);\r\n\t\t\tbreak;\r\n\t\tcase 'dash':\r\n\t\t\tctx.moveTo(x, y);\r\n\t\t\tctx.lineTo(x + Math.cos(rad) * radius, y + Math.sin(rad) * radius);\r\n\t\t\tbreak;\r\n\t\t}\r\n\r\n\t\tctx.fill();\r\n\t\tctx.stroke();\r\n\t},\r\n\r\n\t/**\r\n\t * Returns true if the point is inside the rectangle\r\n\t * @param {object} point - The point to test\r\n\t * @param {object} area - The rectangle\r\n\t * @returns {boolean}\r\n\t * @private\r\n\t */\r\n\t_isPointInArea: function(point, area) {\r\n\t\tvar epsilon = 1e-6; // 1e-6 is margin in pixels for accumulated error.\r\n\r\n\t\treturn point.x > area.left - epsilon && point.x < area.right + epsilon &&\r\n\t\t\tpoint.y > area.top - epsilon && point.y < area.bottom + epsilon;\r\n\t},\r\n\r\n\tclipArea: function(ctx, area) {\r\n\t\tctx.save();\r\n\t\tctx.beginPath();\r\n\t\tctx.rect(area.left, area.top, area.right - area.left, area.bottom - area.top);\r\n\t\tctx.clip();\r\n\t},\r\n\r\n\tunclipArea: function(ctx) {\r\n\t\tctx.restore();\r\n\t},\r\n\r\n\tlineTo: function(ctx, previous, target, flip) {\r\n\t\tvar stepped = target.steppedLine;\r\n\t\tif (stepped) {\r\n\t\t\tif (stepped === 'middle') {\r\n\t\t\t\tvar midpoint = (previous.x + target.x) / 2.0;\r\n\t\t\t\tctx.lineTo(midpoint, flip ? target.y : previous.y);\r\n\t\t\t\tctx.lineTo(midpoint, flip ? previous.y : target.y);\r\n\t\t\t} else if ((stepped === 'after' && !flip) || (stepped !== 'after' && flip)) {\r\n\t\t\t\tctx.lineTo(previous.x, target.y);\r\n\t\t\t} else {\r\n\t\t\t\tctx.lineTo(target.x, previous.y);\r\n\t\t\t}\r\n\t\t\tctx.lineTo(target.x, target.y);\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\tif (!target.tension) {\r\n\t\t\tctx.lineTo(target.x, target.y);\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\tctx.bezierCurveTo(\r\n\t\t\tflip ? previous.controlPointPreviousX : previous.controlPointNextX,\r\n\t\t\tflip ? previous.controlPointPreviousY : previous.controlPointNextY,\r\n\t\t\tflip ? target.controlPointNextX : target.controlPointPreviousX,\r\n\t\t\tflip ? target.controlPointNextY : target.controlPointPreviousY,\r\n\t\t\ttarget.x,\r\n\t\t\ttarget.y);\r\n\t}\r\n};\r\n\r\nvar helpers_canvas = exports$1;\r\n\r\n// DEPRECATIONS\r\n\r\n/**\r\n * Provided for backward compatibility, use Chart.helpers.canvas.clear instead.\r\n * @namespace Chart.helpers.clear\r\n * @deprecated since version 2.7.0\r\n * @todo remove at version 3\r\n * @private\r\n */\r\nhelpers_core.clear = exports$1.clear;\r\n\r\n/**\r\n * Provided for backward compatibility, use Chart.helpers.canvas.roundedRect instead.\r\n * @namespace Chart.helpers.drawRoundedRectangle\r\n * @deprecated since version 2.7.0\r\n * @todo remove at version 3\r\n * @private\r\n */\r\nhelpers_core.drawRoundedRectangle = function(ctx) {\r\n\tctx.beginPath();\r\n\texports$1.roundedRect.apply(exports$1, arguments);\r\n};\n\nvar defaults = {\r\n\t/**\r\n\t * @private\r\n\t */\r\n\t_set: function(scope, values) {\r\n\t\treturn helpers_core.merge(this[scope] || (this[scope] = {}), values);\r\n\t}\r\n};\r\n\r\n// TODO(v3): remove 'global' from namespace. all default are global and\r\n// there's inconsistency around which options are under 'global'\r\ndefaults._set('global', {\r\n\tdefaultColor: 'rgba(0,0,0,0.1)',\r\n\tdefaultFontColor: '#666',\r\n\tdefaultFontFamily: \"'Helvetica Neue', 'Helvetica', 'Arial', sans-serif\",\r\n\tdefaultFontSize: 12,\r\n\tdefaultFontStyle: 'normal',\r\n\tdefaultLineHeight: 1.2,\r\n\tshowLines: true\r\n});\r\n\r\nvar core_defaults = defaults;\n\nvar valueOrDefault = helpers_core.valueOrDefault;\r\n\r\n/**\r\n * Converts the given font object into a CSS font string.\r\n * @param {object} font - A font object.\r\n * @return {string} The CSS font string. See https://developer.mozilla.org/en-US/docs/Web/CSS/font\r\n * @private\r\n */\r\nfunction toFontString(font) {\r\n\tif (!font || helpers_core.isNullOrUndef(font.size) || helpers_core.isNullOrUndef(font.family)) {\r\n\t\treturn null;\r\n\t}\r\n\r\n\treturn (font.style ? font.style + ' ' : '')\r\n\t\t+ (font.weight ? font.weight + ' ' : '')\r\n\t\t+ font.size + 'px '\r\n\t\t+ font.family;\r\n}\r\n\r\n/**\r\n * @alias Chart.helpers.options\r\n * @namespace\r\n */\r\nvar helpers_options = {\r\n\t/**\r\n\t * Converts the given line height `value` in pixels for a specific font `size`.\r\n\t * @param {number|string} value - The lineHeight to parse (eg. 1.6, '14px', '75%', '1.6em').\r\n\t * @param {number} size - The font size (in pixels) used to resolve relative `value`.\r\n\t * @returns {number} The effective line height in pixels (size * 1.2 if value is invalid).\r\n\t * @see https://developer.mozilla.org/en-US/docs/Web/CSS/line-height\r\n\t * @since 2.7.0\r\n\t */\r\n\ttoLineHeight: function(value, size) {\r\n\t\tvar matches = ('' + value).match(/^(normal|(\\d+(?:\\.\\d+)?)(px|em|%)?)$/);\r\n\t\tif (!matches || matches[1] === 'normal') {\r\n\t\t\treturn size * 1.2;\r\n\t\t}\r\n\r\n\t\tvalue = +matches[2];\r\n\r\n\t\tswitch (matches[3]) {\r\n\t\tcase 'px':\r\n\t\t\treturn value;\r\n\t\tcase '%':\r\n\t\t\tvalue /= 100;\r\n\t\t\tbreak;\r\n\t\t}\r\n\r\n\t\treturn size * value;\r\n\t},\r\n\r\n\t/**\r\n\t * Converts the given value into a padding object with pre-computed width/height.\r\n\t * @param {number|object} value - If a number, set the value to all TRBL component,\r\n\t * else, if and object, use defined properties and sets undefined ones to 0.\r\n\t * @returns {object} The padding values (top, right, bottom, left, width, height)\r\n\t * @since 2.7.0\r\n\t */\r\n\ttoPadding: function(value) {\r\n\t\tvar t, r, b, l;\r\n\r\n\t\tif (helpers_core.isObject(value)) {\r\n\t\t\tt = +value.top || 0;\r\n\t\t\tr = +value.right || 0;\r\n\t\t\tb = +value.bottom || 0;\r\n\t\t\tl = +value.left || 0;\r\n\t\t} else {\r\n\t\t\tt = r = b = l = +value || 0;\r\n\t\t}\r\n\r\n\t\treturn {\r\n\t\t\ttop: t,\r\n\t\t\tright: r,\r\n\t\t\tbottom: b,\r\n\t\t\tleft: l,\r\n\t\t\theight: t + b,\r\n\t\t\twidth: l + r\r\n\t\t};\r\n\t},\r\n\r\n\t/**\r\n\t * Parses font options and returns the font object.\r\n\t * @param {object} options - A object that contains font options to be parsed.\r\n\t * @return {object} The font object.\r\n\t * @todo Support font.* options and renamed to toFont().\r\n\t * @private\r\n\t */\r\n\t_parseFont: function(options) {\r\n\t\tvar globalDefaults = core_defaults.global;\r\n\t\tvar size = valueOrDefault(options.fontSize, globalDefaults.defaultFontSize);\r\n\t\tvar font = {\r\n\t\t\tfamily: valueOrDefault(options.fontFamily, globalDefaults.defaultFontFamily),\r\n\t\t\tlineHeight: helpers_core.options.toLineHeight(valueOrDefault(options.lineHeight, globalDefaults.defaultLineHeight), size),\r\n\t\t\tsize: size,\r\n\t\t\tstyle: valueOrDefault(options.fontStyle, globalDefaults.defaultFontStyle),\r\n\t\t\tweight: null,\r\n\t\t\tstring: ''\r\n\t\t};\r\n\r\n\t\tfont.string = toFontString(font);\r\n\t\treturn font;\r\n\t},\r\n\r\n\t/**\r\n\t * Evaluates the given `inputs` sequentially and returns the first defined value.\r\n\t * @param {Array} inputs - An array of values, falling back to the last value.\r\n\t * @param {object} [context] - If defined and the current value is a function, the value\r\n\t * is called with `context` as first argument and the result becomes the new input.\r\n\t * @param {number} [index] - If defined and the current value is an array, the value\r\n\t * at `index` become the new input.\r\n\t * @param {object} [info] - object to return information about resolution in\r\n\t * @param {boolean} [info.cacheable] - Will be set to `false` if option is not cacheable.\r\n\t * @since 2.7.0\r\n\t */\r\n\tresolve: function(inputs, context, index, info) {\r\n\t\tvar cacheable = true;\r\n\t\tvar i, ilen, value;\r\n\r\n\t\tfor (i = 0, ilen = inputs.length; i < ilen; ++i) {\r\n\t\t\tvalue = inputs[i];\r\n\t\t\tif (value === undefined) {\r\n\t\t\t\tcontinue;\r\n\t\t\t}\r\n\t\t\tif (context !== undefined && typeof value === 'function') {\r\n\t\t\t\tvalue = value(context);\r\n\t\t\t\tcacheable = false;\r\n\t\t\t}\r\n\t\t\tif (index !== undefined && helpers_core.isArray(value)) {\r\n\t\t\t\tvalue = value[index];\r\n\t\t\t\tcacheable = false;\r\n\t\t\t}\r\n\t\t\tif (value !== undefined) {\r\n\t\t\t\tif (info && !cacheable) {\r\n\t\t\t\t\tinfo.cacheable = false;\r\n\t\t\t\t}\r\n\t\t\t\treturn value;\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n};\n\n/**\r\n * @alias Chart.helpers.math\r\n * @namespace\r\n */\r\nvar exports$2 = {\r\n\t/**\r\n\t * Returns an array of factors sorted from 1 to sqrt(value)\r\n\t * @private\r\n\t */\r\n\t_factorize: function(value) {\r\n\t\tvar result = [];\r\n\t\tvar sqrt = Math.sqrt(value);\r\n\t\tvar i;\r\n\r\n\t\tfor (i = 1; i < sqrt; i++) {\r\n\t\t\tif (value % i === 0) {\r\n\t\t\t\tresult.push(i);\r\n\t\t\t\tresult.push(value / i);\r\n\t\t\t}\r\n\t\t}\r\n\t\tif (sqrt === (sqrt | 0)) { // if value is a square number\r\n\t\t\tresult.push(sqrt);\r\n\t\t}\r\n\r\n\t\tresult.sort(function(a, b) {\r\n\t\t\treturn a - b;\r\n\t\t}).pop();\r\n\t\treturn result;\r\n\t},\r\n\r\n\tlog10: Math.log10 || function(x) {\r\n\t\tvar exponent = Math.log(x) * Math.LOG10E; // Math.LOG10E = 1 / Math.LN10.\r\n\t\t// Check for whole powers of 10,\r\n\t\t// which due to floating point rounding error should be corrected.\r\n\t\tvar powerOf10 = Math.round(exponent);\r\n\t\tvar isPowerOf10 = x === Math.pow(10, powerOf10);\r\n\r\n\t\treturn isPowerOf10 ? powerOf10 : exponent;\r\n\t}\r\n};\r\n\r\nvar helpers_math = exports$2;\r\n\r\n// DEPRECATIONS\r\n\r\n/**\r\n * Provided for backward compatibility, use Chart.helpers.math.log10 instead.\r\n * @namespace Chart.helpers.log10\r\n * @deprecated since version 2.9.0\r\n * @todo remove at version 3\r\n * @private\r\n */\r\nhelpers_core.log10 = exports$2.log10;\n\nvar getRtlAdapter = function(rectX, width) {\r\n\treturn {\r\n\t\tx: function(x) {\r\n\t\t\treturn rectX + rectX + width - x;\r\n\t\t},\r\n\t\tsetWidth: function(w) {\r\n\t\t\twidth = w;\r\n\t\t},\r\n\t\ttextAlign: function(align) {\r\n\t\t\tif (align === 'center') {\r\n\t\t\t\treturn align;\r\n\t\t\t}\r\n\t\t\treturn align === 'right' ? 'left' : 'right';\r\n\t\t},\r\n\t\txPlus: function(x, value) {\r\n\t\t\treturn x - value;\r\n\t\t},\r\n\t\tleftForLtr: function(x, itemWidth) {\r\n\t\t\treturn x - itemWidth;\r\n\t\t},\r\n\t};\r\n};\r\n\r\nvar getLtrAdapter = function() {\r\n\treturn {\r\n\t\tx: function(x) {\r\n\t\t\treturn x;\r\n\t\t},\r\n\t\tsetWidth: function(w) { // eslint-disable-line no-unused-vars\r\n\t\t},\r\n\t\ttextAlign: function(align) {\r\n\t\t\treturn align;\r\n\t\t},\r\n\t\txPlus: function(x, value) {\r\n\t\t\treturn x + value;\r\n\t\t},\r\n\t\tleftForLtr: function(x, _itemWidth) { // eslint-disable-line no-unused-vars\r\n\t\t\treturn x;\r\n\t\t},\r\n\t};\r\n};\r\n\r\nvar getAdapter = function(rtl, rectX, width) {\r\n\treturn rtl ? getRtlAdapter(rectX, width) : getLtrAdapter();\r\n};\r\n\r\nvar overrideTextDirection = function(ctx, direction) {\r\n\tvar style, original;\r\n\tif (direction === 'ltr' || direction === 'rtl') {\r\n\t\tstyle = ctx.canvas.style;\r\n\t\toriginal = [\r\n\t\t\tstyle.getPropertyValue('direction'),\r\n\t\t\tstyle.getPropertyPriority('direction'),\r\n\t\t];\r\n\r\n\t\tstyle.setProperty('direction', direction, 'important');\r\n\t\tctx.prevTextDirection = original;\r\n\t}\r\n};\r\n\r\nvar restoreTextDirection = function(ctx) {\r\n\tvar original = ctx.prevTextDirection;\r\n\tif (original !== undefined) {\r\n\t\tdelete ctx.prevTextDirection;\r\n\t\tctx.canvas.style.setProperty('direction', original[0], original[1]);\r\n\t}\r\n};\r\n\r\nvar helpers_rtl = {\r\n\tgetRtlAdapter: getAdapter,\r\n\toverrideTextDirection: overrideTextDirection,\r\n\trestoreTextDirection: restoreTextDirection,\r\n};\n\nvar helpers$1 = helpers_core;\r\nvar easing = helpers_easing;\r\nvar canvas = helpers_canvas;\r\nvar options = helpers_options;\r\nvar math = helpers_math;\r\nvar rtl = helpers_rtl;\nhelpers$1.easing = easing;\nhelpers$1.canvas = canvas;\nhelpers$1.options = options;\nhelpers$1.math = math;\nhelpers$1.rtl = rtl;\n\nfunction interpolate(start, view, model, ease) {\r\n\tvar keys = Object.keys(model);\r\n\tvar i, ilen, key, actual, origin, target, type, c0, c1;\r\n\r\n\tfor (i = 0, ilen = keys.length; i < ilen; ++i) {\r\n\t\tkey = keys[i];\r\n\r\n\t\ttarget = model[key];\r\n\r\n\t\t// if a value is added to the model after pivot() has been called, the view\r\n\t\t// doesn't contain it, so let's initialize the view to the target value.\r\n\t\tif (!view.hasOwnProperty(key)) {\r\n\t\t\tview[key] = target;\r\n\t\t}\r\n\r\n\t\tactual = view[key];\r\n\r\n\t\tif (actual === target || key[0] === '_') {\r\n\t\t\tcontinue;\r\n\t\t}\r\n\r\n\t\tif (!start.hasOwnProperty(key)) {\r\n\t\t\tstart[key] = actual;\r\n\t\t}\r\n\r\n\t\torigin = start[key];\r\n\r\n\t\ttype = typeof target;\r\n\r\n\t\tif (type === typeof origin) {\r\n\t\t\tif (type === 'string') {\r\n\t\t\t\tc0 = chartjsColor(origin);\r\n\t\t\t\tif (c0.valid) {\r\n\t\t\t\t\tc1 = chartjsColor(target);\r\n\t\t\t\t\tif (c1.valid) {\r\n\t\t\t\t\t\tview[key] = c1.mix(c0, ease).rgbString();\r\n\t\t\t\t\t\tcontinue;\r\n\t\t\t\t\t}\r\n\t\t\t\t}\r\n\t\t\t} else if (helpers$1.isFinite(origin) && helpers$1.isFinite(target)) {\r\n\t\t\t\tview[key] = origin + (target - origin) * ease;\r\n\t\t\t\tcontinue;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tview[key] = target;\r\n\t}\r\n}\r\n\r\nvar Element = function(configuration) {\r\n\thelpers$1.extend(this, configuration);\r\n\tthis.initialize.apply(this, arguments);\r\n};\r\n\r\nhelpers$1.extend(Element.prototype, {\r\n\t_type: undefined,\r\n\r\n\tinitialize: function() {\r\n\t\tthis.hidden = false;\r\n\t},\r\n\r\n\tpivot: function() {\r\n\t\tvar me = this;\r\n\t\tif (!me._view) {\r\n\t\t\tme._view = helpers$1.extend({}, me._model);\r\n\t\t}\r\n\t\tme._start = {};\r\n\t\treturn me;\r\n\t},\r\n\r\n\ttransition: function(ease) {\r\n\t\tvar me = this;\r\n\t\tvar model = me._model;\r\n\t\tvar start = me._start;\r\n\t\tvar view = me._view;\r\n\r\n\t\t// No animation -> No Transition\r\n\t\tif (!model || ease === 1) {\r\n\t\t\tme._view = helpers$1.extend({}, model);\r\n\t\t\tme._start = null;\r\n\t\t\treturn me;\r\n\t\t}\r\n\r\n\t\tif (!view) {\r\n\t\t\tview = me._view = {};\r\n\t\t}\r\n\r\n\t\tif (!start) {\r\n\t\t\tstart = me._start = {};\r\n\t\t}\r\n\r\n\t\tinterpolate(start, view, model, ease);\r\n\r\n\t\treturn me;\r\n\t},\r\n\r\n\ttooltipPosition: function() {\r\n\t\treturn {\r\n\t\t\tx: this._model.x,\r\n\t\t\ty: this._model.y\r\n\t\t};\r\n\t},\r\n\r\n\thasValue: function() {\r\n\t\treturn helpers$1.isNumber(this._model.x) && helpers$1.isNumber(this._model.y);\r\n\t}\r\n});\r\n\r\nElement.extend = helpers$1.inherits;\r\n\r\nvar core_element = Element;\n\nvar exports$3 = core_element.extend({\r\n\tchart: null, // the animation associated chart instance\r\n\tcurrentStep: 0, // the current animation step\r\n\tnumSteps: 60, // default number of steps\r\n\teasing: '', // the easing to use for this animation\r\n\trender: null, // render function used by the animation service\r\n\r\n\tonAnimationProgress: null, // user specified callback to fire on each step of the animation\r\n\tonAnimationComplete: null, // user specified callback to fire when the animation finishes\r\n});\r\n\r\nvar core_animation = exports$3;\r\n\r\n// DEPRECATIONS\r\n\r\n/**\r\n * Provided for backward compatibility, use Chart.Animation instead\r\n * @prop Chart.Animation#animationObject\r\n * @deprecated since version 2.6.0\r\n * @todo remove at version 3\r\n */\r\nObject.defineProperty(exports$3.prototype, 'animationObject', {\r\n\tget: function() {\r\n\t\treturn this;\r\n\t}\r\n});\r\n\r\n/**\r\n * Provided for backward compatibility, use Chart.Animation#chart instead\r\n * @prop Chart.Animation#chartInstance\r\n * @deprecated since version 2.6.0\r\n * @todo remove at version 3\r\n */\r\nObject.defineProperty(exports$3.prototype, 'chartInstance', {\r\n\tget: function() {\r\n\t\treturn this.chart;\r\n\t},\r\n\tset: function(value) {\r\n\t\tthis.chart = value;\r\n\t}\r\n});\n\ncore_defaults._set('global', {\r\n\tanimation: {\r\n\t\tduration: 1000,\r\n\t\teasing: 'easeOutQuart',\r\n\t\tonProgress: helpers$1.noop,\r\n\t\tonComplete: helpers$1.noop\r\n\t}\r\n});\r\n\r\nvar core_animations = {\r\n\tanimations: [],\r\n\trequest: null,\r\n\r\n\t/**\r\n\t * @param {Chart} chart - The chart to animate.\r\n\t * @param {Chart.Animation} animation - The animation that we will animate.\r\n\t * @param {number} duration - The animation duration in ms.\r\n\t * @param {boolean} lazy - if true, the chart is not marked as animating to enable more responsive interactions\r\n\t */\r\n\taddAnimation: function(chart, animation, duration, lazy) {\r\n\t\tvar animations = this.animations;\r\n\t\tvar i, ilen;\r\n\r\n\t\tanimation.chart = chart;\r\n\t\tanimation.startTime = Date.now();\r\n\t\tanimation.duration = duration;\r\n\r\n\t\tif (!lazy) {\r\n\t\t\tchart.animating = true;\r\n\t\t}\r\n\r\n\t\tfor (i = 0, ilen = animations.length; i < ilen; ++i) {\r\n\t\t\tif (animations[i].chart === chart) {\r\n\t\t\t\tanimations[i] = animation;\r\n\t\t\t\treturn;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tanimations.push(animation);\r\n\r\n\t\t// If there are no animations queued, manually kickstart a digest, for lack of a better word\r\n\t\tif (animations.length === 1) {\r\n\t\t\tthis.requestAnimationFrame();\r\n\t\t}\r\n\t},\r\n\r\n\tcancelAnimation: function(chart) {\r\n\t\tvar index = helpers$1.findIndex(this.animations, function(animation) {\r\n\t\t\treturn animation.chart === chart;\r\n\t\t});\r\n\r\n\t\tif (index !== -1) {\r\n\t\t\tthis.animations.splice(index, 1);\r\n\t\t\tchart.animating = false;\r\n\t\t}\r\n\t},\r\n\r\n\trequestAnimationFrame: function() {\r\n\t\tvar me = this;\r\n\t\tif (me.request === null) {\r\n\t\t\t// Skip animation frame requests until the active one is executed.\r\n\t\t\t// This can happen when processing mouse events, e.g. 'mousemove'\r\n\t\t\t// and 'mouseout' events will trigger multiple renders.\r\n\t\t\tme.request = helpers$1.requestAnimFrame.call(window, function() {\r\n\t\t\t\tme.request = null;\r\n\t\t\t\tme.startDigest();\r\n\t\t\t});\r\n\t\t}\r\n\t},\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\tstartDigest: function() {\r\n\t\tvar me = this;\r\n\r\n\t\tme.advance();\r\n\r\n\t\t// Do we have more stuff to animate?\r\n\t\tif (me.animations.length > 0) {\r\n\t\t\tme.requestAnimationFrame();\r\n\t\t}\r\n\t},\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\tadvance: function() {\r\n\t\tvar animations = this.animations;\r\n\t\tvar animation, chart, numSteps, nextStep;\r\n\t\tvar i = 0;\r\n\r\n\t\t// 1 animation per chart, so we are looping charts here\r\n\t\twhile (i < animations.length) {\r\n\t\t\tanimation = animations[i];\r\n\t\t\tchart = animation.chart;\r\n\t\t\tnumSteps = animation.numSteps;\r\n\r\n\t\t\t// Make sure that currentStep starts at 1\r\n\t\t\t// https://github.com/chartjs/Chart.js/issues/6104\r\n\t\t\tnextStep = Math.floor((Date.now() - animation.startTime) / animation.duration * numSteps) + 1;\r\n\t\t\tanimation.currentStep = Math.min(nextStep, numSteps);\r\n\r\n\t\t\thelpers$1.callback(animation.render, [chart, animation], chart);\r\n\t\t\thelpers$1.callback(animation.onAnimationProgress, [animation], chart);\r\n\r\n\t\t\tif (animation.currentStep >= numSteps) {\r\n\t\t\t\thelpers$1.callback(animation.onAnimationComplete, [animation], chart);\r\n\t\t\t\tchart.animating = false;\r\n\t\t\t\tanimations.splice(i, 1);\r\n\t\t\t} else {\r\n\t\t\t\t++i;\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n};\n\nvar resolve = helpers$1.options.resolve;\r\n\r\nvar arrayEvents = ['push', 'pop', 'shift', 'splice', 'unshift'];\r\n\r\n/**\r\n * Hooks the array methods that add or remove values ('push', pop', 'shift', 'splice',\r\n * 'unshift') and notify the listener AFTER the array has been altered. Listeners are\r\n * called on the 'onData*' callbacks (e.g. onDataPush, etc.) with same arguments.\r\n */\r\nfunction listenArrayEvents(array, listener) {\r\n\tif (array._chartjs) {\r\n\t\tarray._chartjs.listeners.push(listener);\r\n\t\treturn;\r\n\t}\r\n\r\n\tObject.defineProperty(array, '_chartjs', {\r\n\t\tconfigurable: true,\r\n\t\tenumerable: false,\r\n\t\tvalue: {\r\n\t\t\tlisteners: [listener]\r\n\t\t}\r\n\t});\r\n\r\n\tarrayEvents.forEach(function(key) {\r\n\t\tvar method = 'onData' + key.charAt(0).toUpperCase() + key.slice(1);\r\n\t\tvar base = array[key];\r\n\r\n\t\tObject.defineProperty(array, key, {\r\n\t\t\tconfigurable: true,\r\n\t\t\tenumerable: false,\r\n\t\t\tvalue: function() {\r\n\t\t\t\tvar args = Array.prototype.slice.call(arguments);\r\n\t\t\t\tvar res = base.apply(this, args);\r\n\r\n\t\t\t\thelpers$1.each(array._chartjs.listeners, function(object) {\r\n\t\t\t\t\tif (typeof object[method] === 'function') {\r\n\t\t\t\t\t\tobject[method].apply(object, args);\r\n\t\t\t\t\t}\r\n\t\t\t\t});\r\n\r\n\t\t\t\treturn res;\r\n\t\t\t}\r\n\t\t});\r\n\t});\r\n}\r\n\r\n/**\r\n * Removes the given array event listener and cleanup extra attached properties (such as\r\n * the _chartjs stub and overridden methods) if array doesn't have any more listeners.\r\n */\r\nfunction unlistenArrayEvents(array, listener) {\r\n\tvar stub = array._chartjs;\r\n\tif (!stub) {\r\n\t\treturn;\r\n\t}\r\n\r\n\tvar listeners = stub.listeners;\r\n\tvar index = listeners.indexOf(listener);\r\n\tif (index !== -1) {\r\n\t\tlisteners.splice(index, 1);\r\n\t}\r\n\r\n\tif (listeners.length > 0) {\r\n\t\treturn;\r\n\t}\r\n\r\n\tarrayEvents.forEach(function(key) {\r\n\t\tdelete array[key];\r\n\t});\r\n\r\n\tdelete array._chartjs;\r\n}\r\n\r\n// Base class for all dataset controllers (line, bar, etc)\r\nvar DatasetController = function(chart, datasetIndex) {\r\n\tthis.initialize(chart, datasetIndex);\r\n};\r\n\r\nhelpers$1.extend(DatasetController.prototype, {\r\n\r\n\t/**\r\n\t * Element type used to generate a meta dataset (e.g. Chart.element.Line).\r\n\t * @type {Chart.core.element}\r\n\t */\r\n\tdatasetElementType: null,\r\n\r\n\t/**\r\n\t * Element type used to generate a meta data (e.g. Chart.element.Point).\r\n\t * @type {Chart.core.element}\r\n\t */\r\n\tdataElementType: null,\r\n\r\n\t/**\r\n\t * Dataset element option keys to be resolved in _resolveDatasetElementOptions.\r\n\t * A derived controller may override this to resolve controller-specific options.\r\n\t * The keys defined here are for backward compatibility for legend styles.\r\n\t * @private\r\n\t */\r\n\t_datasetElementOptions: [\r\n\t\t'backgroundColor',\r\n\t\t'borderCapStyle',\r\n\t\t'borderColor',\r\n\t\t'borderDash',\r\n\t\t'borderDashOffset',\r\n\t\t'borderJoinStyle',\r\n\t\t'borderWidth'\r\n\t],\r\n\r\n\t/**\r\n\t * Data element option keys to be resolved in _resolveDataElementOptions.\r\n\t * A derived controller may override this to resolve controller-specific options.\r\n\t * The keys defined here are for backward compatibility for legend styles.\r\n\t * @private\r\n\t */\r\n\t_dataElementOptions: [\r\n\t\t'backgroundColor',\r\n\t\t'borderColor',\r\n\t\t'borderWidth',\r\n\t\t'pointStyle'\r\n\t],\r\n\r\n\tinitialize: function(chart, datasetIndex) {\r\n\t\tvar me = this;\r\n\t\tme.chart = chart;\r\n\t\tme.index = datasetIndex;\r\n\t\tme.linkScales();\r\n\t\tme.addElements();\r\n\t\tme._type = me.getMeta().type;\r\n\t},\r\n\r\n\tupdateIndex: function(datasetIndex) {\r\n\t\tthis.index = datasetIndex;\r\n\t},\r\n\r\n\tlinkScales: function() {\r\n\t\tvar me = this;\r\n\t\tvar meta = me.getMeta();\r\n\t\tvar chart = me.chart;\r\n\t\tvar scales = chart.scales;\r\n\t\tvar dataset = me.getDataset();\r\n\t\tvar scalesOpts = chart.options.scales;\r\n\r\n\t\tif (meta.xAxisID === null || !(meta.xAxisID in scales) || dataset.xAxisID) {\r\n\t\t\tmeta.xAxisID = dataset.xAxisID || scalesOpts.xAxes[0].id;\r\n\t\t}\r\n\t\tif (meta.yAxisID === null || !(meta.yAxisID in scales) || dataset.yAxisID) {\r\n\t\t\tmeta.yAxisID = dataset.yAxisID || scalesOpts.yAxes[0].id;\r\n\t\t}\r\n\t},\r\n\r\n\tgetDataset: function() {\r\n\t\treturn this.chart.data.datasets[this.index];\r\n\t},\r\n\r\n\tgetMeta: function() {\r\n\t\treturn this.chart.getDatasetMeta(this.index);\r\n\t},\r\n\r\n\tgetScaleForId: function(scaleID) {\r\n\t\treturn this.chart.scales[scaleID];\r\n\t},\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\t_getValueScaleId: function() {\r\n\t\treturn this.getMeta().yAxisID;\r\n\t},\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\t_getIndexScaleId: function() {\r\n\t\treturn this.getMeta().xAxisID;\r\n\t},\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\t_getValueScale: function() {\r\n\t\treturn this.getScaleForId(this._getValueScaleId());\r\n\t},\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\t_getIndexScale: function() {\r\n\t\treturn this.getScaleForId(this._getIndexScaleId());\r\n\t},\r\n\r\n\treset: function() {\r\n\t\tthis._update(true);\r\n\t},\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\tdestroy: function() {\r\n\t\tif (this._data) {\r\n\t\t\tunlistenArrayEvents(this._data, this);\r\n\t\t}\r\n\t},\r\n\r\n\tcreateMetaDataset: function() {\r\n\t\tvar me = this;\r\n\t\tvar type = me.datasetElementType;\r\n\t\treturn type && new type({\r\n\t\t\t_chart: me.chart,\r\n\t\t\t_datasetIndex: me.index\r\n\t\t});\r\n\t},\r\n\r\n\tcreateMetaData: function(index) {\r\n\t\tvar me = this;\r\n\t\tvar type = me.dataElementType;\r\n\t\treturn type && new type({\r\n\t\t\t_chart: me.chart,\r\n\t\t\t_datasetIndex: me.index,\r\n\t\t\t_index: index\r\n\t\t});\r\n\t},\r\n\r\n\taddElements: function() {\r\n\t\tvar me = this;\r\n\t\tvar meta = me.getMeta();\r\n\t\tvar data = me.getDataset().data || [];\r\n\t\tvar metaData = meta.data;\r\n\t\tvar i, ilen;\r\n\r\n\t\tfor (i = 0, ilen = data.length; i < ilen; ++i) {\r\n\t\t\tmetaData[i] = metaData[i] || me.createMetaData(i);\r\n\t\t}\r\n\r\n\t\tmeta.dataset = meta.dataset || me.createMetaDataset();\r\n\t},\r\n\r\n\taddElementAndReset: function(index) {\r\n\t\tvar element = this.createMetaData(index);\r\n\t\tthis.getMeta().data.splice(index, 0, element);\r\n\t\tthis.updateElement(element, index, true);\r\n\t},\r\n\r\n\tbuildOrUpdateElements: function() {\r\n\t\tvar me = this;\r\n\t\tvar dataset = me.getDataset();\r\n\t\tvar data = dataset.data || (dataset.data = []);\r\n\r\n\t\t// In order to correctly handle data addition/deletion animation (an thus simulate\r\n\t\t// real-time charts), we need to monitor these data modifications and synchronize\r\n\t\t// the internal meta data accordingly.\r\n\t\tif (me._data !== data) {\r\n\t\t\tif (me._data) {\r\n\t\t\t\t// This case happens when the user replaced the data array instance.\r\n\t\t\t\tunlistenArrayEvents(me._data, me);\r\n\t\t\t}\r\n\r\n\t\t\tif (data && Object.isExtensible(data)) {\r\n\t\t\t\tlistenArrayEvents(data, me);\r\n\t\t\t}\r\n\t\t\tme._data = data;\r\n\t\t}\r\n\r\n\t\t// Re-sync meta data in case the user replaced the data array or if we missed\r\n\t\t// any updates and so make sure that we handle number of datapoints changing.\r\n\t\tme.resyncElements();\r\n\t},\r\n\r\n\t/**\r\n\t * Returns the merged user-supplied and default dataset-level options\r\n\t * @private\r\n\t */\r\n\t_configure: function() {\r\n\t\tvar me = this;\r\n\t\tme._config = helpers$1.merge(Object.create(null), [\r\n\t\t\tme.chart.options.datasets[me._type],\r\n\t\t\tme.getDataset(),\r\n\t\t], {\r\n\t\t\tmerger: function(key, target, source) {\r\n\t\t\t\tif (key !== '_meta' && key !== 'data') {\r\n\t\t\t\t\thelpers$1._merger(key, target, source);\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t});\r\n\t},\r\n\r\n\t_update: function(reset) {\r\n\t\tvar me = this;\r\n\t\tme._configure();\r\n\t\tme._cachedDataOpts = null;\r\n\t\tme.update(reset);\r\n\t},\r\n\r\n\tupdate: helpers$1.noop,\r\n\r\n\ttransition: function(easingValue) {\r\n\t\tvar meta = this.getMeta();\r\n\t\tvar elements = meta.data || [];\r\n\t\tvar ilen = elements.length;\r\n\t\tvar i = 0;\r\n\r\n\t\tfor (; i < ilen; ++i) {\r\n\t\t\telements[i].transition(easingValue);\r\n\t\t}\r\n\r\n\t\tif (meta.dataset) {\r\n\t\t\tmeta.dataset.transition(easingValue);\r\n\t\t}\r\n\t},\r\n\r\n\tdraw: function() {\r\n\t\tvar meta = this.getMeta();\r\n\t\tvar elements = meta.data || [];\r\n\t\tvar ilen = elements.length;\r\n\t\tvar i = 0;\r\n\r\n\t\tif (meta.dataset) {\r\n\t\t\tmeta.dataset.draw();\r\n\t\t}\r\n\r\n\t\tfor (; i < ilen; ++i) {\r\n\t\t\telements[i].draw();\r\n\t\t}\r\n\t},\r\n\r\n\t/**\r\n\t * Returns a set of predefined style properties that should be used to represent the dataset\r\n\t * or the data if the index is specified\r\n\t * @param {number} index - data index\r\n\t * @return {IStyleInterface} style object\r\n\t */\r\n\tgetStyle: function(index) {\r\n\t\tvar me = this;\r\n\t\tvar meta = me.getMeta();\r\n\t\tvar dataset = meta.dataset;\r\n\t\tvar style;\r\n\r\n\t\tme._configure();\r\n\t\tif (dataset && index === undefined) {\r\n\t\t\tstyle = me._resolveDatasetElementOptions(dataset || {});\r\n\t\t} else {\r\n\t\t\tindex = index || 0;\r\n\t\t\tstyle = me._resolveDataElementOptions(meta.data[index] || {}, index);\r\n\t\t}\r\n\r\n\t\tif (style.fill === false || style.fill === null) {\r\n\t\t\tstyle.backgroundColor = style.borderColor;\r\n\t\t}\r\n\r\n\t\treturn style;\r\n\t},\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\t_resolveDatasetElementOptions: function(element, hover) {\r\n\t\tvar me = this;\r\n\t\tvar chart = me.chart;\r\n\t\tvar datasetOpts = me._config;\r\n\t\tvar custom = element.custom || {};\r\n\t\tvar options = chart.options.elements[me.datasetElementType.prototype._type] || {};\r\n\t\tvar elementOptions = me._datasetElementOptions;\r\n\t\tvar values = {};\r\n\t\tvar i, ilen, key, readKey;\r\n\r\n\t\t// Scriptable options\r\n\t\tvar context = {\r\n\t\t\tchart: chart,\r\n\t\t\tdataset: me.getDataset(),\r\n\t\t\tdatasetIndex: me.index,\r\n\t\t\thover: hover\r\n\t\t};\r\n\r\n\t\tfor (i = 0, ilen = elementOptions.length; i < ilen; ++i) {\r\n\t\t\tkey = elementOptions[i];\r\n\t\t\treadKey = hover ? 'hover' + key.charAt(0).toUpperCase() + key.slice(1) : key;\r\n\t\t\tvalues[key] = resolve([\r\n\t\t\t\tcustom[readKey],\r\n\t\t\t\tdatasetOpts[readKey],\r\n\t\t\t\toptions[readKey]\r\n\t\t\t], context);\r\n\t\t}\r\n\r\n\t\treturn values;\r\n\t},\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\t_resolveDataElementOptions: function(element, index) {\r\n\t\tvar me = this;\r\n\t\tvar custom = element && element.custom;\r\n\t\tvar cached = me._cachedDataOpts;\r\n\t\tif (cached && !custom) {\r\n\t\t\treturn cached;\r\n\t\t}\r\n\t\tvar chart = me.chart;\r\n\t\tvar datasetOpts = me._config;\r\n\t\tvar options = chart.options.elements[me.dataElementType.prototype._type] || {};\r\n\t\tvar elementOptions = me._dataElementOptions;\r\n\t\tvar values = {};\r\n\r\n\t\t// Scriptable options\r\n\t\tvar context = {\r\n\t\t\tchart: chart,\r\n\t\t\tdataIndex: index,\r\n\t\t\tdataset: me.getDataset(),\r\n\t\t\tdatasetIndex: me.index\r\n\t\t};\r\n\r\n\t\t// `resolve` sets cacheable to `false` if any option is indexed or scripted\r\n\t\tvar info = {cacheable: !custom};\r\n\r\n\t\tvar keys, i, ilen, key;\r\n\r\n\t\tcustom = custom || {};\r\n\r\n\t\tif (helpers$1.isArray(elementOptions)) {\r\n\t\t\tfor (i = 0, ilen = elementOptions.length; i < ilen; ++i) {\r\n\t\t\t\tkey = elementOptions[i];\r\n\t\t\t\tvalues[key] = resolve([\r\n\t\t\t\t\tcustom[key],\r\n\t\t\t\t\tdatasetOpts[key],\r\n\t\t\t\t\toptions[key]\r\n\t\t\t\t], context, index, info);\r\n\t\t\t}\r\n\t\t} else {\r\n\t\t\tkeys = Object.keys(elementOptions);\r\n\t\t\tfor (i = 0, ilen = keys.length; i < ilen; ++i) {\r\n\t\t\t\tkey = keys[i];\r\n\t\t\t\tvalues[key] = resolve([\r\n\t\t\t\t\tcustom[key],\r\n\t\t\t\t\tdatasetOpts[elementOptions[key]],\r\n\t\t\t\t\tdatasetOpts[key],\r\n\t\t\t\t\toptions[key]\r\n\t\t\t\t], context, index, info);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tif (info.cacheable) {\r\n\t\t\tme._cachedDataOpts = Object.freeze(values);\r\n\t\t}\r\n\r\n\t\treturn values;\r\n\t},\r\n\r\n\tremoveHoverStyle: function(element) {\r\n\t\thelpers$1.merge(element._model, element.$previousStyle || {});\r\n\t\tdelete element.$previousStyle;\r\n\t},\r\n\r\n\tsetHoverStyle: function(element) {\r\n\t\tvar dataset = this.chart.data.datasets[element._datasetIndex];\r\n\t\tvar index = element._index;\r\n\t\tvar custom = element.custom || {};\r\n\t\tvar model = element._model;\r\n\t\tvar getHoverColor = helpers$1.getHoverColor;\r\n\r\n\t\telement.$previousStyle = {\r\n\t\t\tbackgroundColor: model.backgroundColor,\r\n\t\t\tborderColor: model.borderColor,\r\n\t\t\tborderWidth: model.borderWidth\r\n\t\t};\r\n\r\n\t\tmodel.backgroundColor = resolve([custom.hoverBackgroundColor, dataset.hoverBackgroundColor, getHoverColor(model.backgroundColor)], undefined, index);\r\n\t\tmodel.borderColor = resolve([custom.hoverBorderColor, dataset.hoverBorderColor, getHoverColor(model.borderColor)], undefined, index);\r\n\t\tmodel.borderWidth = resolve([custom.hoverBorderWidth, dataset.hoverBorderWidth, model.borderWidth], undefined, index);\r\n\t},\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\t_removeDatasetHoverStyle: function() {\r\n\t\tvar element = this.getMeta().dataset;\r\n\r\n\t\tif (element) {\r\n\t\t\tthis.removeHoverStyle(element);\r\n\t\t}\r\n\t},\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\t_setDatasetHoverStyle: function() {\r\n\t\tvar element = this.getMeta().dataset;\r\n\t\tvar prev = {};\r\n\t\tvar i, ilen, key, keys, hoverOptions, model;\r\n\r\n\t\tif (!element) {\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\tmodel = element._model;\r\n\t\thoverOptions = this._resolveDatasetElementOptions(element, true);\r\n\r\n\t\tkeys = Object.keys(hoverOptions);\r\n\t\tfor (i = 0, ilen = keys.length; i < ilen; ++i) {\r\n\t\t\tkey = keys[i];\r\n\t\t\tprev[key] = model[key];\r\n\t\t\tmodel[key] = hoverOptions[key];\r\n\t\t}\r\n\r\n\t\telement.$previousStyle = prev;\r\n\t},\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\tresyncElements: function() {\r\n\t\tvar me = this;\r\n\t\tvar meta = me.getMeta();\r\n\t\tvar data = me.getDataset().data;\r\n\t\tvar numMeta = meta.data.length;\r\n\t\tvar numData = data.length;\r\n\r\n\t\tif (numData < numMeta) {\r\n\t\t\tmeta.data.splice(numData, numMeta - numData);\r\n\t\t} else if (numData > numMeta) {\r\n\t\t\tme.insertElements(numMeta, numData - numMeta);\r\n\t\t}\r\n\t},\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\tinsertElements: function(start, count) {\r\n\t\tfor (var i = 0; i < count; ++i) {\r\n\t\t\tthis.addElementAndReset(start + i);\r\n\t\t}\r\n\t},\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\tonDataPush: function() {\r\n\t\tvar count = arguments.length;\r\n\t\tthis.insertElements(this.getDataset().data.length - count, count);\r\n\t},\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\tonDataPop: function() {\r\n\t\tthis.getMeta().data.pop();\r\n\t},\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\tonDataShift: function() {\r\n\t\tthis.getMeta().data.shift();\r\n\t},\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\tonDataSplice: function(start, count) {\r\n\t\tthis.getMeta().data.splice(start, count);\r\n\t\tthis.insertElements(start, arguments.length - 2);\r\n\t},\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\tonDataUnshift: function() {\r\n\t\tthis.insertElements(0, arguments.length);\r\n\t}\r\n});\r\n\r\nDatasetController.extend = helpers$1.inherits;\r\n\r\nvar core_datasetController = DatasetController;\n\nvar TAU = Math.PI * 2;\r\n\r\ncore_defaults._set('global', {\r\n\telements: {\r\n\t\tarc: {\r\n\t\t\tbackgroundColor: core_defaults.global.defaultColor,\r\n\t\t\tborderColor: '#fff',\r\n\t\t\tborderWidth: 2,\r\n\t\t\tborderAlign: 'center'\r\n\t\t}\r\n\t}\r\n});\r\n\r\nfunction clipArc(ctx, arc) {\r\n\tvar startAngle = arc.startAngle;\r\n\tvar endAngle = arc.endAngle;\r\n\tvar pixelMargin = arc.pixelMargin;\r\n\tvar angleMargin = pixelMargin / arc.outerRadius;\r\n\tvar x = arc.x;\r\n\tvar y = arc.y;\r\n\r\n\t// Draw an inner border by cliping the arc and drawing a double-width border\r\n\t// Enlarge the clipping arc by 0.33 pixels to eliminate glitches between borders\r\n\tctx.beginPath();\r\n\tctx.arc(x, y, arc.outerRadius, startAngle - angleMargin, endAngle + angleMargin);\r\n\tif (arc.innerRadius > pixelMargin) {\r\n\t\tangleMargin = pixelMargin / arc.innerRadius;\r\n\t\tctx.arc(x, y, arc.innerRadius - pixelMargin, endAngle + angleMargin, startAngle - angleMargin, true);\r\n\t} else {\r\n\t\tctx.arc(x, y, pixelMargin, endAngle + Math.PI / 2, startAngle - Math.PI / 2);\r\n\t}\r\n\tctx.closePath();\r\n\tctx.clip();\r\n}\r\n\r\nfunction drawFullCircleBorders(ctx, vm, arc, inner) {\r\n\tvar endAngle = arc.endAngle;\r\n\tvar i;\r\n\r\n\tif (inner) {\r\n\t\tarc.endAngle = arc.startAngle + TAU;\r\n\t\tclipArc(ctx, arc);\r\n\t\tarc.endAngle = endAngle;\r\n\t\tif (arc.endAngle === arc.startAngle && arc.fullCircles) {\r\n\t\t\tarc.endAngle += TAU;\r\n\t\t\tarc.fullCircles--;\r\n\t\t}\r\n\t}\r\n\r\n\tctx.beginPath();\r\n\tctx.arc(arc.x, arc.y, arc.innerRadius, arc.startAngle + TAU, arc.startAngle, true);\r\n\tfor (i = 0; i < arc.fullCircles; ++i) {\r\n\t\tctx.stroke();\r\n\t}\r\n\r\n\tctx.beginPath();\r\n\tctx.arc(arc.x, arc.y, vm.outerRadius, arc.startAngle, arc.startAngle + TAU);\r\n\tfor (i = 0; i < arc.fullCircles; ++i) {\r\n\t\tctx.stroke();\r\n\t}\r\n}\r\n\r\nfunction drawBorder(ctx, vm, arc) {\r\n\tvar inner = vm.borderAlign === 'inner';\r\n\r\n\tif (inner) {\r\n\t\tctx.lineWidth = vm.borderWidth * 2;\r\n\t\tctx.lineJoin = 'round';\r\n\t} else {\r\n\t\tctx.lineWidth = vm.borderWidth;\r\n\t\tctx.lineJoin = 'bevel';\r\n\t}\r\n\r\n\tif (arc.fullCircles) {\r\n\t\tdrawFullCircleBorders(ctx, vm, arc, inner);\r\n\t}\r\n\r\n\tif (inner) {\r\n\t\tclipArc(ctx, arc);\r\n\t}\r\n\r\n\tctx.beginPath();\r\n\tctx.arc(arc.x, arc.y, vm.outerRadius, arc.startAngle, arc.endAngle);\r\n\tctx.arc(arc.x, arc.y, arc.innerRadius, arc.endAngle, arc.startAngle, true);\r\n\tctx.closePath();\r\n\tctx.stroke();\r\n}\r\n\r\nvar element_arc = core_element.extend({\r\n\t_type: 'arc',\r\n\r\n\tinLabelRange: function(mouseX) {\r\n\t\tvar vm = this._view;\r\n\r\n\t\tif (vm) {\r\n\t\t\treturn (Math.pow(mouseX - vm.x, 2) < Math.pow(vm.radius + vm.hoverRadius, 2));\r\n\t\t}\r\n\t\treturn false;\r\n\t},\r\n\r\n\tinRange: function(chartX, chartY) {\r\n\t\tvar vm = this._view;\r\n\r\n\t\tif (vm) {\r\n\t\t\tvar pointRelativePosition = helpers$1.getAngleFromPoint(vm, {x: chartX, y: chartY});\r\n\t\t\tvar angle = pointRelativePosition.angle;\r\n\t\t\tvar distance = pointRelativePosition.distance;\r\n\r\n\t\t\t// Sanitise angle range\r\n\t\t\tvar startAngle = vm.startAngle;\r\n\t\t\tvar endAngle = vm.endAngle;\r\n\t\t\twhile (endAngle < startAngle) {\r\n\t\t\t\tendAngle += TAU;\r\n\t\t\t}\r\n\t\t\twhile (angle > endAngle) {\r\n\t\t\t\tangle -= TAU;\r\n\t\t\t}\r\n\t\t\twhile (angle < startAngle) {\r\n\t\t\t\tangle += TAU;\r\n\t\t\t}\r\n\r\n\t\t\t// Check if within the range of the open/close angle\r\n\t\t\tvar betweenAngles = (angle >= startAngle && angle <= endAngle);\r\n\t\t\tvar withinRadius = (distance >= vm.innerRadius && distance <= vm.outerRadius);\r\n\r\n\t\t\treturn (betweenAngles && withinRadius);\r\n\t\t}\r\n\t\treturn false;\r\n\t},\r\n\r\n\tgetCenterPoint: function() {\r\n\t\tvar vm = this._view;\r\n\t\tvar halfAngle = (vm.startAngle + vm.endAngle) / 2;\r\n\t\tvar halfRadius = (vm.innerRadius + vm.outerRadius) / 2;\r\n\t\treturn {\r\n\t\t\tx: vm.x + Math.cos(halfAngle) * halfRadius,\r\n\t\t\ty: vm.y + Math.sin(halfAngle) * halfRadius\r\n\t\t};\r\n\t},\r\n\r\n\tgetArea: function() {\r\n\t\tvar vm = this._view;\r\n\t\treturn Math.PI * ((vm.endAngle - vm.startAngle) / (2 * Math.PI)) * (Math.pow(vm.outerRadius, 2) - Math.pow(vm.innerRadius, 2));\r\n\t},\r\n\r\n\ttooltipPosition: function() {\r\n\t\tvar vm = this._view;\r\n\t\tvar centreAngle = vm.startAngle + ((vm.endAngle - vm.startAngle) / 2);\r\n\t\tvar rangeFromCentre = (vm.outerRadius - vm.innerRadius) / 2 + vm.innerRadius;\r\n\r\n\t\treturn {\r\n\t\t\tx: vm.x + (Math.cos(centreAngle) * rangeFromCentre),\r\n\t\t\ty: vm.y + (Math.sin(centreAngle) * rangeFromCentre)\r\n\t\t};\r\n\t},\r\n\r\n\tdraw: function() {\r\n\t\tvar ctx = this._chart.ctx;\r\n\t\tvar vm = this._view;\r\n\t\tvar pixelMargin = (vm.borderAlign === 'inner') ? 0.33 : 0;\r\n\t\tvar arc = {\r\n\t\t\tx: vm.x,\r\n\t\t\ty: vm.y,\r\n\t\t\tinnerRadius: vm.innerRadius,\r\n\t\t\touterRadius: Math.max(vm.outerRadius - pixelMargin, 0),\r\n\t\t\tpixelMargin: pixelMargin,\r\n\t\t\tstartAngle: vm.startAngle,\r\n\t\t\tendAngle: vm.endAngle,\r\n\t\t\tfullCircles: Math.floor(vm.circumference / TAU)\r\n\t\t};\r\n\t\tvar i;\r\n\r\n\t\tctx.save();\r\n\r\n\t\tctx.fillStyle = vm.backgroundColor;\r\n\t\tctx.strokeStyle = vm.borderColor;\r\n\r\n\t\tif (arc.fullCircles) {\r\n\t\t\tarc.endAngle = arc.startAngle + TAU;\r\n\t\t\tctx.beginPath();\r\n\t\t\tctx.arc(arc.x, arc.y, arc.outerRadius, arc.startAngle, arc.endAngle);\r\n\t\t\tctx.arc(arc.x, arc.y, arc.innerRadius, arc.endAngle, arc.startAngle, true);\r\n\t\t\tctx.closePath();\r\n\t\t\tfor (i = 0; i < arc.fullCircles; ++i) {\r\n\t\t\t\tctx.fill();\r\n\t\t\t}\r\n\t\t\tarc.endAngle = arc.startAngle + vm.circumference % TAU;\r\n\t\t}\r\n\r\n\t\tctx.beginPath();\r\n\t\tctx.arc(arc.x, arc.y, arc.outerRadius, arc.startAngle, arc.endAngle);\r\n\t\tctx.arc(arc.x, arc.y, arc.innerRadius, arc.endAngle, arc.startAngle, true);\r\n\t\tctx.closePath();\r\n\t\tctx.fill();\r\n\r\n\t\tif (vm.borderWidth) {\r\n\t\t\tdrawBorder(ctx, vm, arc);\r\n\t\t}\r\n\r\n\t\tctx.restore();\r\n\t}\r\n});\n\nvar valueOrDefault$1 = helpers$1.valueOrDefault;\r\n\r\nvar defaultColor = core_defaults.global.defaultColor;\r\n\r\ncore_defaults._set('global', {\r\n\telements: {\r\n\t\tline: {\r\n\t\t\ttension: 0.4,\r\n\t\t\tbackgroundColor: defaultColor,\r\n\t\t\tborderWidth: 3,\r\n\t\t\tborderColor: defaultColor,\r\n\t\t\tborderCapStyle: 'butt',\r\n\t\t\tborderDash: [],\r\n\t\t\tborderDashOffset: 0.0,\r\n\t\t\tborderJoinStyle: 'miter',\r\n\t\t\tcapBezierPoints: true,\r\n\t\t\tfill: true, // do we fill in the area between the line and its base axis\r\n\t\t}\r\n\t}\r\n});\r\n\r\nvar element_line = core_element.extend({\r\n\t_type: 'line',\r\n\r\n\tdraw: function() {\r\n\t\tvar me = this;\r\n\t\tvar vm = me._view;\r\n\t\tvar ctx = me._chart.ctx;\r\n\t\tvar spanGaps = vm.spanGaps;\r\n\t\tvar points = me._children.slice(); // clone array\r\n\t\tvar globalDefaults = core_defaults.global;\r\n\t\tvar globalOptionLineElements = globalDefaults.elements.line;\r\n\t\tvar lastDrawnIndex = -1;\r\n\t\tvar closePath = me._loop;\r\n\t\tvar index, previous, currentVM;\r\n\r\n\t\tif (!points.length) {\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\tif (me._loop) {\r\n\t\t\tfor (index = 0; index < points.length; ++index) {\r\n\t\t\t\tprevious = helpers$1.previousItem(points, index);\r\n\t\t\t\t// If the line has an open path, shift the point array\r\n\t\t\t\tif (!points[index]._view.skip && previous._view.skip) {\r\n\t\t\t\t\tpoints = points.slice(index).concat(points.slice(0, index));\r\n\t\t\t\t\tclosePath = spanGaps;\r\n\t\t\t\t\tbreak;\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t\t// If the line has a close path, add the first point again\r\n\t\t\tif (closePath) {\r\n\t\t\t\tpoints.push(points[0]);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tctx.save();\r\n\r\n\t\t// Stroke Line Options\r\n\t\tctx.lineCap = vm.borderCapStyle || globalOptionLineElements.borderCapStyle;\r\n\r\n\t\t// IE 9 and 10 do not support line dash\r\n\t\tif (ctx.setLineDash) {\r\n\t\t\tctx.setLineDash(vm.borderDash || globalOptionLineElements.borderDash);\r\n\t\t}\r\n\r\n\t\tctx.lineDashOffset = valueOrDefault$1(vm.borderDashOffset, globalOptionLineElements.borderDashOffset);\r\n\t\tctx.lineJoin = vm.borderJoinStyle || globalOptionLineElements.borderJoinStyle;\r\n\t\tctx.lineWidth = valueOrDefault$1(vm.borderWidth, globalOptionLineElements.borderWidth);\r\n\t\tctx.strokeStyle = vm.borderColor || globalDefaults.defaultColor;\r\n\r\n\t\t// Stroke Line\r\n\t\tctx.beginPath();\r\n\r\n\t\t// First point moves to it's starting position no matter what\r\n\t\tcurrentVM = points[0]._view;\r\n\t\tif (!currentVM.skip) {\r\n\t\t\tctx.moveTo(currentVM.x, currentVM.y);\r\n\t\t\tlastDrawnIndex = 0;\r\n\t\t}\r\n\r\n\t\tfor (index = 1; index < points.length; ++index) {\r\n\t\t\tcurrentVM = points[index]._view;\r\n\t\t\tprevious = lastDrawnIndex === -1 ? helpers$1.previousItem(points, index) : points[lastDrawnIndex];\r\n\r\n\t\t\tif (!currentVM.skip) {\r\n\t\t\t\tif ((lastDrawnIndex !== (index - 1) && !spanGaps) || lastDrawnIndex === -1) {\r\n\t\t\t\t\t// There was a gap and this is the first point after the gap\r\n\t\t\t\t\tctx.moveTo(currentVM.x, currentVM.y);\r\n\t\t\t\t} else {\r\n\t\t\t\t\t// Line to next point\r\n\t\t\t\t\thelpers$1.canvas.lineTo(ctx, previous._view, currentVM);\r\n\t\t\t\t}\r\n\t\t\t\tlastDrawnIndex = index;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tif (closePath) {\r\n\t\t\tctx.closePath();\r\n\t\t}\r\n\r\n\t\tctx.stroke();\r\n\t\tctx.restore();\r\n\t}\r\n});\n\nvar valueOrDefault$2 = helpers$1.valueOrDefault;\r\n\r\nvar defaultColor$1 = core_defaults.global.defaultColor;\r\n\r\ncore_defaults._set('global', {\r\n\telements: {\r\n\t\tpoint: {\r\n\t\t\tradius: 3,\r\n\t\t\tpointStyle: 'circle',\r\n\t\t\tbackgroundColor: defaultColor$1,\r\n\t\t\tborderColor: defaultColor$1,\r\n\t\t\tborderWidth: 1,\r\n\t\t\t// Hover\r\n\t\t\thitRadius: 1,\r\n\t\t\thoverRadius: 4,\r\n\t\t\thoverBorderWidth: 1\r\n\t\t}\r\n\t}\r\n});\r\n\r\nfunction xRange(mouseX) {\r\n\tvar vm = this._view;\r\n\treturn vm ? (Math.abs(mouseX - vm.x) < vm.radius + vm.hitRadius) : false;\r\n}\r\n\r\nfunction yRange(mouseY) {\r\n\tvar vm = this._view;\r\n\treturn vm ? (Math.abs(mouseY - vm.y) < vm.radius + vm.hitRadius) : false;\r\n}\r\n\r\nvar element_point = core_element.extend({\r\n\t_type: 'point',\r\n\r\n\tinRange: function(mouseX, mouseY) {\r\n\t\tvar vm = this._view;\r\n\t\treturn vm ? ((Math.pow(mouseX - vm.x, 2) + Math.pow(mouseY - vm.y, 2)) < Math.pow(vm.hitRadius + vm.radius, 2)) : false;\r\n\t},\r\n\r\n\tinLabelRange: xRange,\r\n\tinXRange: xRange,\r\n\tinYRange: yRange,\r\n\r\n\tgetCenterPoint: function() {\r\n\t\tvar vm = this._view;\r\n\t\treturn {\r\n\t\t\tx: vm.x,\r\n\t\t\ty: vm.y\r\n\t\t};\r\n\t},\r\n\r\n\tgetArea: function() {\r\n\t\treturn Math.PI * Math.pow(this._view.radius, 2);\r\n\t},\r\n\r\n\ttooltipPosition: function() {\r\n\t\tvar vm = this._view;\r\n\t\treturn {\r\n\t\t\tx: vm.x,\r\n\t\t\ty: vm.y,\r\n\t\t\tpadding: vm.radius + vm.borderWidth\r\n\t\t};\r\n\t},\r\n\r\n\tdraw: function(chartArea) {\r\n\t\tvar vm = this._view;\r\n\t\tvar ctx = this._chart.ctx;\r\n\t\tvar pointStyle = vm.pointStyle;\r\n\t\tvar rotation = vm.rotation;\r\n\t\tvar radius = vm.radius;\r\n\t\tvar x = vm.x;\r\n\t\tvar y = vm.y;\r\n\t\tvar globalDefaults = core_defaults.global;\r\n\t\tvar defaultColor = globalDefaults.defaultColor; // eslint-disable-line no-shadow\r\n\r\n\t\tif (vm.skip) {\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\t// Clipping for Points.\r\n\t\tif (chartArea === undefined || helpers$1.canvas._isPointInArea(vm, chartArea)) {\r\n\t\t\tctx.strokeStyle = vm.borderColor || defaultColor;\r\n\t\t\tctx.lineWidth = valueOrDefault$2(vm.borderWidth, globalDefaults.elements.point.borderWidth);\r\n\t\t\tctx.fillStyle = vm.backgroundColor || defaultColor;\r\n\t\t\thelpers$1.canvas.drawPoint(ctx, pointStyle, radius, x, y, rotation);\r\n\t\t}\r\n\t}\r\n});\n\nvar defaultColor$2 = core_defaults.global.defaultColor;\r\n\r\ncore_defaults._set('global', {\r\n\telements: {\r\n\t\trectangle: {\r\n\t\t\tbackgroundColor: defaultColor$2,\r\n\t\t\tborderColor: defaultColor$2,\r\n\t\t\tborderSkipped: 'bottom',\r\n\t\t\tborderWidth: 0\r\n\t\t}\r\n\t}\r\n});\r\n\r\nfunction isVertical(vm) {\r\n\treturn vm && vm.width !== undefined;\r\n}\r\n\r\n/**\r\n * Helper function to get the bounds of the bar regardless of the orientation\r\n * @param bar {Chart.Element.Rectangle} the bar\r\n * @return {Bounds} bounds of the bar\r\n * @private\r\n */\r\nfunction getBarBounds(vm) {\r\n\tvar x1, x2, y1, y2, half;\r\n\r\n\tif (isVertical(vm)) {\r\n\t\thalf = vm.width / 2;\r\n\t\tx1 = vm.x - half;\r\n\t\tx2 = vm.x + half;\r\n\t\ty1 = Math.min(vm.y, vm.base);\r\n\t\ty2 = Math.max(vm.y, vm.base);\r\n\t} else {\r\n\t\thalf = vm.height / 2;\r\n\t\tx1 = Math.min(vm.x, vm.base);\r\n\t\tx2 = Math.max(vm.x, vm.base);\r\n\t\ty1 = vm.y - half;\r\n\t\ty2 = vm.y + half;\r\n\t}\r\n\r\n\treturn {\r\n\t\tleft: x1,\r\n\t\ttop: y1,\r\n\t\tright: x2,\r\n\t\tbottom: y2\r\n\t};\r\n}\r\n\r\nfunction swap(orig, v1, v2) {\r\n\treturn orig === v1 ? v2 : orig === v2 ? v1 : orig;\r\n}\r\n\r\nfunction parseBorderSkipped(vm) {\r\n\tvar edge = vm.borderSkipped;\r\n\tvar res = {};\r\n\r\n\tif (!edge) {\r\n\t\treturn res;\r\n\t}\r\n\r\n\tif (vm.horizontal) {\r\n\t\tif (vm.base > vm.x) {\r\n\t\t\tedge = swap(edge, 'left', 'right');\r\n\t\t}\r\n\t} else if (vm.base < vm.y) {\r\n\t\tedge = swap(edge, 'bottom', 'top');\r\n\t}\r\n\r\n\tres[edge] = true;\r\n\treturn res;\r\n}\r\n\r\nfunction parseBorderWidth(vm, maxW, maxH) {\r\n\tvar value = vm.borderWidth;\r\n\tvar skip = parseBorderSkipped(vm);\r\n\tvar t, r, b, l;\r\n\r\n\tif (helpers$1.isObject(value)) {\r\n\t\tt = +value.top || 0;\r\n\t\tr = +value.right || 0;\r\n\t\tb = +value.bottom || 0;\r\n\t\tl = +value.left || 0;\r\n\t} else {\r\n\t\tt = r = b = l = +value || 0;\r\n\t}\r\n\r\n\treturn {\r\n\t\tt: skip.top || (t < 0) ? 0 : t > maxH ? maxH : t,\r\n\t\tr: skip.right || (r < 0) ? 0 : r > maxW ? maxW : r,\r\n\t\tb: skip.bottom || (b < 0) ? 0 : b > maxH ? maxH : b,\r\n\t\tl: skip.left || (l < 0) ? 0 : l > maxW ? maxW : l\r\n\t};\r\n}\r\n\r\nfunction boundingRects(vm) {\r\n\tvar bounds = getBarBounds(vm);\r\n\tvar width = bounds.right - bounds.left;\r\n\tvar height = bounds.bottom - bounds.top;\r\n\tvar border = parseBorderWidth(vm, width / 2, height / 2);\r\n\r\n\treturn {\r\n\t\touter: {\r\n\t\t\tx: bounds.left,\r\n\t\t\ty: bounds.top,\r\n\t\t\tw: width,\r\n\t\t\th: height\r\n\t\t},\r\n\t\tinner: {\r\n\t\t\tx: bounds.left + border.l,\r\n\t\t\ty: bounds.top + border.t,\r\n\t\t\tw: width - border.l - border.r,\r\n\t\t\th: height - border.t - border.b\r\n\t\t}\r\n\t};\r\n}\r\n\r\nfunction inRange(vm, x, y) {\r\n\tvar skipX = x === null;\r\n\tvar skipY = y === null;\r\n\tvar bounds = !vm || (skipX && skipY) ? false : getBarBounds(vm);\r\n\r\n\treturn bounds\r\n\t\t&& (skipX || x >= bounds.left && x <= bounds.right)\r\n\t\t&& (skipY || y >= bounds.top && y <= bounds.bottom);\r\n}\r\n\r\nvar element_rectangle = core_element.extend({\r\n\t_type: 'rectangle',\r\n\r\n\tdraw: function() {\r\n\t\tvar ctx = this._chart.ctx;\r\n\t\tvar vm = this._view;\r\n\t\tvar rects = boundingRects(vm);\r\n\t\tvar outer = rects.outer;\r\n\t\tvar inner = rects.inner;\r\n\r\n\t\tctx.fillStyle = vm.backgroundColor;\r\n\t\tctx.fillRect(outer.x, outer.y, outer.w, outer.h);\r\n\r\n\t\tif (outer.w === inner.w && outer.h === inner.h) {\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\tctx.save();\r\n\t\tctx.beginPath();\r\n\t\tctx.rect(outer.x, outer.y, outer.w, outer.h);\r\n\t\tctx.clip();\r\n\t\tctx.fillStyle = vm.borderColor;\r\n\t\tctx.rect(inner.x, inner.y, inner.w, inner.h);\r\n\t\tctx.fill('evenodd');\r\n\t\tctx.restore();\r\n\t},\r\n\r\n\theight: function() {\r\n\t\tvar vm = this._view;\r\n\t\treturn vm.base - vm.y;\r\n\t},\r\n\r\n\tinRange: function(mouseX, mouseY) {\r\n\t\treturn inRange(this._view, mouseX, mouseY);\r\n\t},\r\n\r\n\tinLabelRange: function(mouseX, mouseY) {\r\n\t\tvar vm = this._view;\r\n\t\treturn isVertical(vm)\r\n\t\t\t? inRange(vm, mouseX, null)\r\n\t\t\t: inRange(vm, null, mouseY);\r\n\t},\r\n\r\n\tinXRange: function(mouseX) {\r\n\t\treturn inRange(this._view, mouseX, null);\r\n\t},\r\n\r\n\tinYRange: function(mouseY) {\r\n\t\treturn inRange(this._view, null, mouseY);\r\n\t},\r\n\r\n\tgetCenterPoint: function() {\r\n\t\tvar vm = this._view;\r\n\t\tvar x, y;\r\n\t\tif (isVertical(vm)) {\r\n\t\t\tx = vm.x;\r\n\t\t\ty = (vm.y + vm.base) / 2;\r\n\t\t} else {\r\n\t\t\tx = (vm.x + vm.base) / 2;\r\n\t\t\ty = vm.y;\r\n\t\t}\r\n\r\n\t\treturn {x: x, y: y};\r\n\t},\r\n\r\n\tgetArea: function() {\r\n\t\tvar vm = this._view;\r\n\r\n\t\treturn isVertical(vm)\r\n\t\t\t? vm.width * Math.abs(vm.y - vm.base)\r\n\t\t\t: vm.height * Math.abs(vm.x - vm.base);\r\n\t},\r\n\r\n\ttooltipPosition: function() {\r\n\t\tvar vm = this._view;\r\n\t\treturn {\r\n\t\t\tx: vm.x,\r\n\t\t\ty: vm.y\r\n\t\t};\r\n\t}\r\n});\n\nvar elements = {};\r\nvar Arc = element_arc;\r\nvar Line = element_line;\r\nvar Point = element_point;\r\nvar Rectangle = element_rectangle;\nelements.Arc = Arc;\nelements.Line = Line;\nelements.Point = Point;\nelements.Rectangle = Rectangle;\n\nvar deprecated = helpers$1._deprecated;\r\nvar valueOrDefault$3 = helpers$1.valueOrDefault;\r\n\r\ncore_defaults._set('bar', {\r\n\thover: {\r\n\t\tmode: 'label'\r\n\t},\r\n\r\n\tscales: {\r\n\t\txAxes: [{\r\n\t\t\ttype: 'category',\r\n\t\t\toffset: true,\r\n\t\t\tgridLines: {\r\n\t\t\t\toffsetGridLines: true\r\n\t\t\t}\r\n\t\t}],\r\n\r\n\t\tyAxes: [{\r\n\t\t\ttype: 'linear'\r\n\t\t}]\r\n\t}\r\n});\r\n\r\ncore_defaults._set('global', {\r\n\tdatasets: {\r\n\t\tbar: {\r\n\t\t\tcategoryPercentage: 0.8,\r\n\t\t\tbarPercentage: 0.9\r\n\t\t}\r\n\t}\r\n});\r\n\r\n/**\r\n * Computes the \"optimal\" sample size to maintain bars equally sized while preventing overlap.\r\n * @private\r\n */\r\nfunction computeMinSampleSize(scale, pixels) {\r\n\tvar min = scale._length;\r\n\tvar prev, curr, i, ilen;\r\n\r\n\tfor (i = 1, ilen = pixels.length; i < ilen; ++i) {\r\n\t\tmin = Math.min(min, Math.abs(pixels[i] - pixels[i - 1]));\r\n\t}\r\n\r\n\tfor (i = 0, ilen = scale.getTicks().length; i < ilen; ++i) {\r\n\t\tcurr = scale.getPixelForTick(i);\r\n\t\tmin = i > 0 ? Math.min(min, Math.abs(curr - prev)) : min;\r\n\t\tprev = curr;\r\n\t}\r\n\r\n\treturn min;\r\n}\r\n\r\n/**\r\n * Computes an \"ideal\" category based on the absolute bar thickness or, if undefined or null,\r\n * uses the smallest interval (see computeMinSampleSize) that prevents bar overlapping. This\r\n * mode currently always generates bars equally sized (until we introduce scriptable options?).\r\n * @private\r\n */\r\nfunction computeFitCategoryTraits(index, ruler, options) {\r\n\tvar thickness = options.barThickness;\r\n\tvar count = ruler.stackCount;\r\n\tvar curr = ruler.pixels[index];\r\n\tvar min = helpers$1.isNullOrUndef(thickness)\r\n\t\t? computeMinSampleSize(ruler.scale, ruler.pixels)\r\n\t\t: -1;\r\n\tvar size, ratio;\r\n\r\n\tif (helpers$1.isNullOrUndef(thickness)) {\r\n\t\tsize = min * options.categoryPercentage;\r\n\t\tratio = options.barPercentage;\r\n\t} else {\r\n\t\t// When bar thickness is enforced, category and bar percentages are ignored.\r\n\t\t// Note(SB): we could add support for relative bar thickness (e.g. barThickness: '50%')\r\n\t\t// and deprecate barPercentage since this value is ignored when thickness is absolute.\r\n\t\tsize = thickness * count;\r\n\t\tratio = 1;\r\n\t}\r\n\r\n\treturn {\r\n\t\tchunk: size / count,\r\n\t\tratio: ratio,\r\n\t\tstart: curr - (size / 2)\r\n\t};\r\n}\r\n\r\n/**\r\n * Computes an \"optimal\" category that globally arranges bars side by side (no gap when\r\n * percentage options are 1), based on the previous and following categories. This mode\r\n * generates bars with different widths when data are not evenly spaced.\r\n * @private\r\n */\r\nfunction computeFlexCategoryTraits(index, ruler, options) {\r\n\tvar pixels = ruler.pixels;\r\n\tvar curr = pixels[index];\r\n\tvar prev = index > 0 ? pixels[index - 1] : null;\r\n\tvar next = index < pixels.length - 1 ? pixels[index + 1] : null;\r\n\tvar percent = options.categoryPercentage;\r\n\tvar start, size;\r\n\r\n\tif (prev === null) {\r\n\t\t// first data: its size is double based on the next point or,\r\n\t\t// if it's also the last data, we use the scale size.\r\n\t\tprev = curr - (next === null ? ruler.end - ruler.start : next - curr);\r\n\t}\r\n\r\n\tif (next === null) {\r\n\t\t// last data: its size is also double based on the previous point.\r\n\t\tnext = curr + curr - prev;\r\n\t}\r\n\r\n\tstart = curr - (curr - Math.min(prev, next)) / 2 * percent;\r\n\tsize = Math.abs(next - prev) / 2 * percent;\r\n\r\n\treturn {\r\n\t\tchunk: size / ruler.stackCount,\r\n\t\tratio: options.barPercentage,\r\n\t\tstart: start\r\n\t};\r\n}\r\n\r\nvar controller_bar = core_datasetController.extend({\r\n\r\n\tdataElementType: elements.Rectangle,\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\t_dataElementOptions: [\r\n\t\t'backgroundColor',\r\n\t\t'borderColor',\r\n\t\t'borderSkipped',\r\n\t\t'borderWidth',\r\n\t\t'barPercentage',\r\n\t\t'barThickness',\r\n\t\t'categoryPercentage',\r\n\t\t'maxBarThickness',\r\n\t\t'minBarLength'\r\n\t],\r\n\r\n\tinitialize: function() {\r\n\t\tvar me = this;\r\n\t\tvar meta, scaleOpts;\r\n\r\n\t\tcore_datasetController.prototype.initialize.apply(me, arguments);\r\n\r\n\t\tmeta = me.getMeta();\r\n\t\tmeta.stack = me.getDataset().stack;\r\n\t\tmeta.bar = true;\r\n\r\n\t\tscaleOpts = me._getIndexScale().options;\r\n\t\tdeprecated('bar chart', scaleOpts.barPercentage, 'scales.[x/y]Axes.barPercentage', 'dataset.barPercentage');\r\n\t\tdeprecated('bar chart', scaleOpts.barThickness, 'scales.[x/y]Axes.barThickness', 'dataset.barThickness');\r\n\t\tdeprecated('bar chart', scaleOpts.categoryPercentage, 'scales.[x/y]Axes.categoryPercentage', 'dataset.categoryPercentage');\r\n\t\tdeprecated('bar chart', me._getValueScale().options.minBarLength, 'scales.[x/y]Axes.minBarLength', 'dataset.minBarLength');\r\n\t\tdeprecated('bar chart', scaleOpts.maxBarThickness, 'scales.[x/y]Axes.maxBarThickness', 'dataset.maxBarThickness');\r\n\t},\r\n\r\n\tupdate: function(reset) {\r\n\t\tvar me = this;\r\n\t\tvar rects = me.getMeta().data;\r\n\t\tvar i, ilen;\r\n\r\n\t\tme._ruler = me.getRuler();\r\n\r\n\t\tfor (i = 0, ilen = rects.length; i < ilen; ++i) {\r\n\t\t\tme.updateElement(rects[i], i, reset);\r\n\t\t}\r\n\t},\r\n\r\n\tupdateElement: function(rectangle, index, reset) {\r\n\t\tvar me = this;\r\n\t\tvar meta = me.getMeta();\r\n\t\tvar dataset = me.getDataset();\r\n\t\tvar options = me._resolveDataElementOptions(rectangle, index);\r\n\r\n\t\trectangle._xScale = me.getScaleForId(meta.xAxisID);\r\n\t\trectangle._yScale = me.getScaleForId(meta.yAxisID);\r\n\t\trectangle._datasetIndex = me.index;\r\n\t\trectangle._index = index;\r\n\t\trectangle._model = {\r\n\t\t\tbackgroundColor: options.backgroundColor,\r\n\t\t\tborderColor: options.borderColor,\r\n\t\t\tborderSkipped: options.borderSkipped,\r\n\t\t\tborderWidth: options.borderWidth,\r\n\t\t\tdatasetLabel: dataset.label,\r\n\t\t\tlabel: me.chart.data.labels[index]\r\n\t\t};\r\n\r\n\t\tif (helpers$1.isArray(dataset.data[index])) {\r\n\t\t\trectangle._model.borderSkipped = null;\r\n\t\t}\r\n\r\n\t\tme._updateElementGeometry(rectangle, index, reset, options);\r\n\r\n\t\trectangle.pivot();\r\n\t},\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\t_updateElementGeometry: function(rectangle, index, reset, options) {\r\n\t\tvar me = this;\r\n\t\tvar model = rectangle._model;\r\n\t\tvar vscale = me._getValueScale();\r\n\t\tvar base = vscale.getBasePixel();\r\n\t\tvar horizontal = vscale.isHorizontal();\r\n\t\tvar ruler = me._ruler || me.getRuler();\r\n\t\tvar vpixels = me.calculateBarValuePixels(me.index, index, options);\r\n\t\tvar ipixels = me.calculateBarIndexPixels(me.index, index, ruler, options);\r\n\r\n\t\tmodel.horizontal = horizontal;\r\n\t\tmodel.base = reset ? base : vpixels.base;\r\n\t\tmodel.x = horizontal ? reset ? base : vpixels.head : ipixels.center;\r\n\t\tmodel.y = horizontal ? ipixels.center : reset ? base : vpixels.head;\r\n\t\tmodel.height = horizontal ? ipixels.size : undefined;\r\n\t\tmodel.width = horizontal ? undefined : ipixels.size;\r\n\t},\r\n\r\n\t/**\r\n\t * Returns the stacks based on groups and bar visibility.\r\n\t * @param {number} [last] - The dataset index\r\n\t * @returns {string[]} The list of stack IDs\r\n\t * @private\r\n\t */\r\n\t_getStacks: function(last) {\r\n\t\tvar me = this;\r\n\t\tvar scale = me._getIndexScale();\r\n\t\tvar metasets = scale._getMatchingVisibleMetas(me._type);\r\n\t\tvar stacked = scale.options.stacked;\r\n\t\tvar ilen = metasets.length;\r\n\t\tvar stacks = [];\r\n\t\tvar i, meta;\r\n\r\n\t\tfor (i = 0; i < ilen; ++i) {\r\n\t\t\tmeta = metasets[i];\r\n\t\t\t// stacked | meta.stack\r\n\t\t\t// | found | not found | undefined\r\n\t\t\t// false | x | x | x\r\n\t\t\t// true | | x |\r\n\t\t\t// undefined | | x | x\r\n\t\t\tif (stacked === false || stacks.indexOf(meta.stack) === -1 ||\r\n\t\t\t\t(stacked === undefined && meta.stack === undefined)) {\r\n\t\t\t\tstacks.push(meta.stack);\r\n\t\t\t}\r\n\t\t\tif (meta.index === last) {\r\n\t\t\t\tbreak;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn stacks;\r\n\t},\r\n\r\n\t/**\r\n\t * Returns the effective number of stacks based on groups and bar visibility.\r\n\t * @private\r\n\t */\r\n\tgetStackCount: function() {\r\n\t\treturn this._getStacks().length;\r\n\t},\r\n\r\n\t/**\r\n\t * Returns the stack index for the given dataset based on groups and bar visibility.\r\n\t * @param {number} [datasetIndex] - The dataset index\r\n\t * @param {string} [name] - The stack name to find\r\n\t * @returns {number} The stack index\r\n\t * @private\r\n\t */\r\n\tgetStackIndex: function(datasetIndex, name) {\r\n\t\tvar stacks = this._getStacks(datasetIndex);\r\n\t\tvar index = (name !== undefined)\r\n\t\t\t? stacks.indexOf(name)\r\n\t\t\t: -1; // indexOf returns -1 if element is not present\r\n\r\n\t\treturn (index === -1)\r\n\t\t\t? stacks.length - 1\r\n\t\t\t: index;\r\n\t},\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\tgetRuler: function() {\r\n\t\tvar me = this;\r\n\t\tvar scale = me._getIndexScale();\r\n\t\tvar pixels = [];\r\n\t\tvar i, ilen;\r\n\r\n\t\tfor (i = 0, ilen = me.getMeta().data.length; i < ilen; ++i) {\r\n\t\t\tpixels.push(scale.getPixelForValue(null, i, me.index));\r\n\t\t}\r\n\r\n\t\treturn {\r\n\t\t\tpixels: pixels,\r\n\t\t\tstart: scale._startPixel,\r\n\t\t\tend: scale._endPixel,\r\n\t\t\tstackCount: me.getStackCount(),\r\n\t\t\tscale: scale\r\n\t\t};\r\n\t},\r\n\r\n\t/**\r\n\t * Note: pixel values are not clamped to the scale area.\r\n\t * @private\r\n\t */\r\n\tcalculateBarValuePixels: function(datasetIndex, index, options) {\r\n\t\tvar me = this;\r\n\t\tvar chart = me.chart;\r\n\t\tvar scale = me._getValueScale();\r\n\t\tvar isHorizontal = scale.isHorizontal();\r\n\t\tvar datasets = chart.data.datasets;\r\n\t\tvar metasets = scale._getMatchingVisibleMetas(me._type);\r\n\t\tvar value = scale._parseValue(datasets[datasetIndex].data[index]);\r\n\t\tvar minBarLength = options.minBarLength;\r\n\t\tvar stacked = scale.options.stacked;\r\n\t\tvar stack = me.getMeta().stack;\r\n\t\tvar start = value.start === undefined ? 0 : value.max >= 0 && value.min >= 0 ? value.min : value.max;\r\n\t\tvar length = value.start === undefined ? value.end : value.max >= 0 && value.min >= 0 ? value.max - value.min : value.min - value.max;\r\n\t\tvar ilen = metasets.length;\r\n\t\tvar i, imeta, ivalue, base, head, size, stackLength;\r\n\r\n\t\tif (stacked || (stacked === undefined && stack !== undefined)) {\r\n\t\t\tfor (i = 0; i < ilen; ++i) {\r\n\t\t\t\timeta = metasets[i];\r\n\r\n\t\t\t\tif (imeta.index === datasetIndex) {\r\n\t\t\t\t\tbreak;\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif (imeta.stack === stack) {\r\n\t\t\t\t\tstackLength = scale._parseValue(datasets[imeta.index].data[index]);\r\n\t\t\t\t\tivalue = stackLength.start === undefined ? stackLength.end : stackLength.min >= 0 && stackLength.max >= 0 ? stackLength.max : stackLength.min;\r\n\r\n\t\t\t\t\tif ((value.min < 0 && ivalue < 0) || (value.max >= 0 && ivalue > 0)) {\r\n\t\t\t\t\t\tstart += ivalue;\r\n\t\t\t\t\t}\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tbase = scale.getPixelForValue(start);\r\n\t\thead = scale.getPixelForValue(start + length);\r\n\t\tsize = head - base;\r\n\r\n\t\tif (minBarLength !== undefined && Math.abs(size) < minBarLength) {\r\n\t\t\tsize = minBarLength;\r\n\t\t\tif (length >= 0 && !isHorizontal || length < 0 && isHorizontal) {\r\n\t\t\t\thead = base - minBarLength;\r\n\t\t\t} else {\r\n\t\t\t\thead = base + minBarLength;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn {\r\n\t\t\tsize: size,\r\n\t\t\tbase: base,\r\n\t\t\thead: head,\r\n\t\t\tcenter: head + size / 2\r\n\t\t};\r\n\t},\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\tcalculateBarIndexPixels: function(datasetIndex, index, ruler, options) {\r\n\t\tvar me = this;\r\n\t\tvar range = options.barThickness === 'flex'\r\n\t\t\t? computeFlexCategoryTraits(index, ruler, options)\r\n\t\t\t: computeFitCategoryTraits(index, ruler, options);\r\n\r\n\t\tvar stackIndex = me.getStackIndex(datasetIndex, me.getMeta().stack);\r\n\t\tvar center = range.start + (range.chunk * stackIndex) + (range.chunk / 2);\r\n\t\tvar size = Math.min(\r\n\t\t\tvalueOrDefault$3(options.maxBarThickness, Infinity),\r\n\t\t\trange.chunk * range.ratio);\r\n\r\n\t\treturn {\r\n\t\t\tbase: center - size / 2,\r\n\t\t\thead: center + size / 2,\r\n\t\t\tcenter: center,\r\n\t\t\tsize: size\r\n\t\t};\r\n\t},\r\n\r\n\tdraw: function() {\r\n\t\tvar me = this;\r\n\t\tvar chart = me.chart;\r\n\t\tvar scale = me._getValueScale();\r\n\t\tvar rects = me.getMeta().data;\r\n\t\tvar dataset = me.getDataset();\r\n\t\tvar ilen = rects.length;\r\n\t\tvar i = 0;\r\n\r\n\t\thelpers$1.canvas.clipArea(chart.ctx, chart.chartArea);\r\n\r\n\t\tfor (; i < ilen; ++i) {\r\n\t\t\tvar val = scale._parseValue(dataset.data[i]);\r\n\t\t\tif (!isNaN(val.min) && !isNaN(val.max)) {\r\n\t\t\t\trects[i].draw();\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\thelpers$1.canvas.unclipArea(chart.ctx);\r\n\t},\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\t_resolveDataElementOptions: function() {\r\n\t\tvar me = this;\r\n\t\tvar values = helpers$1.extend({}, core_datasetController.prototype._resolveDataElementOptions.apply(me, arguments));\r\n\t\tvar indexOpts = me._getIndexScale().options;\r\n\t\tvar valueOpts = me._getValueScale().options;\r\n\r\n\t\tvalues.barPercentage = valueOrDefault$3(indexOpts.barPercentage, values.barPercentage);\r\n\t\tvalues.barThickness = valueOrDefault$3(indexOpts.barThickness, values.barThickness);\r\n\t\tvalues.categoryPercentage = valueOrDefault$3(indexOpts.categoryPercentage, values.categoryPercentage);\r\n\t\tvalues.maxBarThickness = valueOrDefault$3(indexOpts.maxBarThickness, values.maxBarThickness);\r\n\t\tvalues.minBarLength = valueOrDefault$3(valueOpts.minBarLength, values.minBarLength);\r\n\r\n\t\treturn values;\r\n\t}\r\n\r\n});\n\nvar valueOrDefault$4 = helpers$1.valueOrDefault;\r\nvar resolve$1 = helpers$1.options.resolve;\r\n\r\ncore_defaults._set('bubble', {\r\n\thover: {\r\n\t\tmode: 'single'\r\n\t},\r\n\r\n\tscales: {\r\n\t\txAxes: [{\r\n\t\t\ttype: 'linear', // bubble should probably use a linear scale by default\r\n\t\t\tposition: 'bottom',\r\n\t\t\tid: 'x-axis-0' // need an ID so datasets can reference the scale\r\n\t\t}],\r\n\t\tyAxes: [{\r\n\t\t\ttype: 'linear',\r\n\t\t\tposition: 'left',\r\n\t\t\tid: 'y-axis-0'\r\n\t\t}]\r\n\t},\r\n\r\n\ttooltips: {\r\n\t\tcallbacks: {\r\n\t\t\ttitle: function() {\r\n\t\t\t\t// Title doesn't make sense for scatter since we format the data as a point\r\n\t\t\t\treturn '';\r\n\t\t\t},\r\n\t\t\tlabel: function(item, data) {\r\n\t\t\t\tvar datasetLabel = data.datasets[item.datasetIndex].label || '';\r\n\t\t\t\tvar dataPoint = data.datasets[item.datasetIndex].data[item.index];\r\n\t\t\t\treturn datasetLabel + ': (' + item.xLabel + ', ' + item.yLabel + ', ' + dataPoint.r + ')';\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n});\r\n\r\nvar controller_bubble = core_datasetController.extend({\r\n\t/**\r\n\t * @protected\r\n\t */\r\n\tdataElementType: elements.Point,\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\t_dataElementOptions: [\r\n\t\t'backgroundColor',\r\n\t\t'borderColor',\r\n\t\t'borderWidth',\r\n\t\t'hoverBackgroundColor',\r\n\t\t'hoverBorderColor',\r\n\t\t'hoverBorderWidth',\r\n\t\t'hoverRadius',\r\n\t\t'hitRadius',\r\n\t\t'pointStyle',\r\n\t\t'rotation'\r\n\t],\r\n\r\n\t/**\r\n\t * @protected\r\n\t */\r\n\tupdate: function(reset) {\r\n\t\tvar me = this;\r\n\t\tvar meta = me.getMeta();\r\n\t\tvar points = meta.data;\r\n\r\n\t\t// Update Points\r\n\t\thelpers$1.each(points, function(point, index) {\r\n\t\t\tme.updateElement(point, index, reset);\r\n\t\t});\r\n\t},\r\n\r\n\t/**\r\n\t * @protected\r\n\t */\r\n\tupdateElement: function(point, index, reset) {\r\n\t\tvar me = this;\r\n\t\tvar meta = me.getMeta();\r\n\t\tvar custom = point.custom || {};\r\n\t\tvar xScale = me.getScaleForId(meta.xAxisID);\r\n\t\tvar yScale = me.getScaleForId(meta.yAxisID);\r\n\t\tvar options = me._resolveDataElementOptions(point, index);\r\n\t\tvar data = me.getDataset().data[index];\r\n\t\tvar dsIndex = me.index;\r\n\r\n\t\tvar x = reset ? xScale.getPixelForDecimal(0.5) : xScale.getPixelForValue(typeof data === 'object' ? data : NaN, index, dsIndex);\r\n\t\tvar y = reset ? yScale.getBasePixel() : yScale.getPixelForValue(data, index, dsIndex);\r\n\r\n\t\tpoint._xScale = xScale;\r\n\t\tpoint._yScale = yScale;\r\n\t\tpoint._options = options;\r\n\t\tpoint._datasetIndex = dsIndex;\r\n\t\tpoint._index = index;\r\n\t\tpoint._model = {\r\n\t\t\tbackgroundColor: options.backgroundColor,\r\n\t\t\tborderColor: options.borderColor,\r\n\t\t\tborderWidth: options.borderWidth,\r\n\t\t\thitRadius: options.hitRadius,\r\n\t\t\tpointStyle: options.pointStyle,\r\n\t\t\trotation: options.rotation,\r\n\t\t\tradius: reset ? 0 : options.radius,\r\n\t\t\tskip: custom.skip || isNaN(x) || isNaN(y),\r\n\t\t\tx: x,\r\n\t\t\ty: y,\r\n\t\t};\r\n\r\n\t\tpoint.pivot();\r\n\t},\r\n\r\n\t/**\r\n\t * @protected\r\n\t */\r\n\tsetHoverStyle: function(point) {\r\n\t\tvar model = point._model;\r\n\t\tvar options = point._options;\r\n\t\tvar getHoverColor = helpers$1.getHoverColor;\r\n\r\n\t\tpoint.$previousStyle = {\r\n\t\t\tbackgroundColor: model.backgroundColor,\r\n\t\t\tborderColor: model.borderColor,\r\n\t\t\tborderWidth: model.borderWidth,\r\n\t\t\tradius: model.radius\r\n\t\t};\r\n\r\n\t\tmodel.backgroundColor = valueOrDefault$4(options.hoverBackgroundColor, getHoverColor(options.backgroundColor));\r\n\t\tmodel.borderColor = valueOrDefault$4(options.hoverBorderColor, getHoverColor(options.borderColor));\r\n\t\tmodel.borderWidth = valueOrDefault$4(options.hoverBorderWidth, options.borderWidth);\r\n\t\tmodel.radius = options.radius + options.hoverRadius;\r\n\t},\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\t_resolveDataElementOptions: function(point, index) {\r\n\t\tvar me = this;\r\n\t\tvar chart = me.chart;\r\n\t\tvar dataset = me.getDataset();\r\n\t\tvar custom = point.custom || {};\r\n\t\tvar data = dataset.data[index] || {};\r\n\t\tvar values = core_datasetController.prototype._resolveDataElementOptions.apply(me, arguments);\r\n\r\n\t\t// Scriptable options\r\n\t\tvar context = {\r\n\t\t\tchart: chart,\r\n\t\t\tdataIndex: index,\r\n\t\t\tdataset: dataset,\r\n\t\t\tdatasetIndex: me.index\r\n\t\t};\r\n\r\n\t\t// In case values were cached (and thus frozen), we need to clone the values\r\n\t\tif (me._cachedDataOpts === values) {\r\n\t\t\tvalues = helpers$1.extend({}, values);\r\n\t\t}\r\n\r\n\t\t// Custom radius resolution\r\n\t\tvalues.radius = resolve$1([\r\n\t\t\tcustom.radius,\r\n\t\t\tdata.r,\r\n\t\t\tme._config.radius,\r\n\t\t\tchart.options.elements.point.radius\r\n\t\t], context, index);\r\n\r\n\t\treturn values;\r\n\t}\r\n});\n\nvar valueOrDefault$5 = helpers$1.valueOrDefault;\r\n\r\nvar PI$1 = Math.PI;\r\nvar DOUBLE_PI$1 = PI$1 * 2;\r\nvar HALF_PI$1 = PI$1 / 2;\r\n\r\ncore_defaults._set('doughnut', {\r\n\tanimation: {\r\n\t\t// Boolean - Whether we animate the rotation of the Doughnut\r\n\t\tanimateRotate: true,\r\n\t\t// Boolean - Whether we animate scaling the Doughnut from the centre\r\n\t\tanimateScale: false\r\n\t},\r\n\thover: {\r\n\t\tmode: 'single'\r\n\t},\r\n\tlegendCallback: function(chart) {\r\n\t\tvar list = document.createElement('ul');\r\n\t\tvar data = chart.data;\r\n\t\tvar datasets = data.datasets;\r\n\t\tvar labels = data.labels;\r\n\t\tvar i, ilen, listItem, listItemSpan;\r\n\r\n\t\tlist.setAttribute('class', chart.id + '-legend');\r\n\t\tif (datasets.length) {\r\n\t\t\tfor (i = 0, ilen = datasets[0].data.length; i < ilen; ++i) {\r\n\t\t\t\tlistItem = list.appendChild(document.createElement('li'));\r\n\t\t\t\tlistItemSpan = listItem.appendChild(document.createElement('span'));\r\n\t\t\t\tlistItemSpan.style.backgroundColor = datasets[0].backgroundColor[i];\r\n\t\t\t\tif (labels[i]) {\r\n\t\t\t\t\tlistItem.appendChild(document.createTextNode(labels[i]));\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn list.outerHTML;\r\n\t},\r\n\tlegend: {\r\n\t\tlabels: {\r\n\t\t\tgenerateLabels: function(chart) {\r\n\t\t\t\tvar data = chart.data;\r\n\t\t\t\tif (data.labels.length && data.datasets.length) {\r\n\t\t\t\t\treturn data.labels.map(function(label, i) {\r\n\t\t\t\t\t\tvar meta = chart.getDatasetMeta(0);\r\n\t\t\t\t\t\tvar style = meta.controller.getStyle(i);\r\n\r\n\t\t\t\t\t\treturn {\r\n\t\t\t\t\t\t\ttext: label,\r\n\t\t\t\t\t\t\tfillStyle: style.backgroundColor,\r\n\t\t\t\t\t\t\tstrokeStyle: style.borderColor,\r\n\t\t\t\t\t\t\tlineWidth: style.borderWidth,\r\n\t\t\t\t\t\t\thidden: isNaN(data.datasets[0].data[i]) || meta.data[i].hidden,\r\n\r\n\t\t\t\t\t\t\t// Extra data used for toggling the correct item\r\n\t\t\t\t\t\t\tindex: i\r\n\t\t\t\t\t\t};\r\n\t\t\t\t\t});\r\n\t\t\t\t}\r\n\t\t\t\treturn [];\r\n\t\t\t}\r\n\t\t},\r\n\r\n\t\tonClick: function(e, legendItem) {\r\n\t\t\tvar index = legendItem.index;\r\n\t\t\tvar chart = this.chart;\r\n\t\t\tvar i, ilen, meta;\r\n\r\n\t\t\tfor (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) {\r\n\t\t\t\tmeta = chart.getDatasetMeta(i);\r\n\t\t\t\t// toggle visibility of index if exists\r\n\t\t\t\tif (meta.data[index]) {\r\n\t\t\t\t\tmeta.data[index].hidden = !meta.data[index].hidden;\r\n\t\t\t\t}\r\n\t\t\t}\r\n\r\n\t\t\tchart.update();\r\n\t\t}\r\n\t},\r\n\r\n\t// The percentage of the chart that we cut out of the middle.\r\n\tcutoutPercentage: 50,\r\n\r\n\t// The rotation of the chart, where the first data arc begins.\r\n\trotation: -HALF_PI$1,\r\n\r\n\t// The total circumference of the chart.\r\n\tcircumference: DOUBLE_PI$1,\r\n\r\n\t// Need to override these to give a nice default\r\n\ttooltips: {\r\n\t\tcallbacks: {\r\n\t\t\ttitle: function() {\r\n\t\t\t\treturn '';\r\n\t\t\t},\r\n\t\t\tlabel: function(tooltipItem, data) {\r\n\t\t\t\tvar dataLabel = data.labels[tooltipItem.index];\r\n\t\t\t\tvar value = ': ' + data.datasets[tooltipItem.datasetIndex].data[tooltipItem.index];\r\n\r\n\t\t\t\tif (helpers$1.isArray(dataLabel)) {\r\n\t\t\t\t\t// show value on first line of multiline label\r\n\t\t\t\t\t// need to clone because we are changing the value\r\n\t\t\t\t\tdataLabel = dataLabel.slice();\r\n\t\t\t\t\tdataLabel[0] += value;\r\n\t\t\t\t} else {\r\n\t\t\t\t\tdataLabel += value;\r\n\t\t\t\t}\r\n\r\n\t\t\t\treturn dataLabel;\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n});\r\n\r\nvar controller_doughnut = core_datasetController.extend({\r\n\r\n\tdataElementType: elements.Arc,\r\n\r\n\tlinkScales: helpers$1.noop,\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\t_dataElementOptions: [\r\n\t\t'backgroundColor',\r\n\t\t'borderColor',\r\n\t\t'borderWidth',\r\n\t\t'borderAlign',\r\n\t\t'hoverBackgroundColor',\r\n\t\t'hoverBorderColor',\r\n\t\t'hoverBorderWidth',\r\n\t],\r\n\r\n\t// Get index of the dataset in relation to the visible datasets. This allows determining the inner and outer radius correctly\r\n\tgetRingIndex: function(datasetIndex) {\r\n\t\tvar ringIndex = 0;\r\n\r\n\t\tfor (var j = 0; j < datasetIndex; ++j) {\r\n\t\t\tif (this.chart.isDatasetVisible(j)) {\r\n\t\t\t\t++ringIndex;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn ringIndex;\r\n\t},\r\n\r\n\tupdate: function(reset) {\r\n\t\tvar me = this;\r\n\t\tvar chart = me.chart;\r\n\t\tvar chartArea = chart.chartArea;\r\n\t\tvar opts = chart.options;\r\n\t\tvar ratioX = 1;\r\n\t\tvar ratioY = 1;\r\n\t\tvar offsetX = 0;\r\n\t\tvar offsetY = 0;\r\n\t\tvar meta = me.getMeta();\r\n\t\tvar arcs = meta.data;\r\n\t\tvar cutout = opts.cutoutPercentage / 100 || 0;\r\n\t\tvar circumference = opts.circumference;\r\n\t\tvar chartWeight = me._getRingWeight(me.index);\r\n\t\tvar maxWidth, maxHeight, i, ilen;\r\n\r\n\t\t// If the chart's circumference isn't a full circle, calculate size as a ratio of the width/height of the arc\r\n\t\tif (circumference < DOUBLE_PI$1) {\r\n\t\t\tvar startAngle = opts.rotation % DOUBLE_PI$1;\r\n\t\t\tstartAngle += startAngle >= PI$1 ? -DOUBLE_PI$1 : startAngle < -PI$1 ? DOUBLE_PI$1 : 0;\r\n\t\t\tvar endAngle = startAngle + circumference;\r\n\t\t\tvar startX = Math.cos(startAngle);\r\n\t\t\tvar startY = Math.sin(startAngle);\r\n\t\t\tvar endX = Math.cos(endAngle);\r\n\t\t\tvar endY = Math.sin(endAngle);\r\n\t\t\tvar contains0 = (startAngle <= 0 && endAngle >= 0) || endAngle >= DOUBLE_PI$1;\r\n\t\t\tvar contains90 = (startAngle <= HALF_PI$1 && endAngle >= HALF_PI$1) || endAngle >= DOUBLE_PI$1 + HALF_PI$1;\r\n\t\t\tvar contains180 = startAngle === -PI$1 || endAngle >= PI$1;\r\n\t\t\tvar contains270 = (startAngle <= -HALF_PI$1 && endAngle >= -HALF_PI$1) || endAngle >= PI$1 + HALF_PI$1;\r\n\t\t\tvar minX = contains180 ? -1 : Math.min(startX, startX * cutout, endX, endX * cutout);\r\n\t\t\tvar minY = contains270 ? -1 : Math.min(startY, startY * cutout, endY, endY * cutout);\r\n\t\t\tvar maxX = contains0 ? 1 : Math.max(startX, startX * cutout, endX, endX * cutout);\r\n\t\t\tvar maxY = contains90 ? 1 : Math.max(startY, startY * cutout, endY, endY * cutout);\r\n\t\t\tratioX = (maxX - minX) / 2;\r\n\t\t\tratioY = (maxY - minY) / 2;\r\n\t\t\toffsetX = -(maxX + minX) / 2;\r\n\t\t\toffsetY = -(maxY + minY) / 2;\r\n\t\t}\r\n\r\n\t\tfor (i = 0, ilen = arcs.length; i < ilen; ++i) {\r\n\t\t\tarcs[i]._options = me._resolveDataElementOptions(arcs[i], i);\r\n\t\t}\r\n\r\n\t\tchart.borderWidth = me.getMaxBorderWidth();\r\n\t\tmaxWidth = (chartArea.right - chartArea.left - chart.borderWidth) / ratioX;\r\n\t\tmaxHeight = (chartArea.bottom - chartArea.top - chart.borderWidth) / ratioY;\r\n\t\tchart.outerRadius = Math.max(Math.min(maxWidth, maxHeight) / 2, 0);\r\n\t\tchart.innerRadius = Math.max(chart.outerRadius * cutout, 0);\r\n\t\tchart.radiusLength = (chart.outerRadius - chart.innerRadius) / (me._getVisibleDatasetWeightTotal() || 1);\r\n\t\tchart.offsetX = offsetX * chart.outerRadius;\r\n\t\tchart.offsetY = offsetY * chart.outerRadius;\r\n\r\n\t\tmeta.total = me.calculateTotal();\r\n\r\n\t\tme.outerRadius = chart.outerRadius - chart.radiusLength * me._getRingWeightOffset(me.index);\r\n\t\tme.innerRadius = Math.max(me.outerRadius - chart.radiusLength * chartWeight, 0);\r\n\r\n\t\tfor (i = 0, ilen = arcs.length; i < ilen; ++i) {\r\n\t\t\tme.updateElement(arcs[i], i, reset);\r\n\t\t}\r\n\t},\r\n\r\n\tupdateElement: function(arc, index, reset) {\r\n\t\tvar me = this;\r\n\t\tvar chart = me.chart;\r\n\t\tvar chartArea = chart.chartArea;\r\n\t\tvar opts = chart.options;\r\n\t\tvar animationOpts = opts.animation;\r\n\t\tvar centerX = (chartArea.left + chartArea.right) / 2;\r\n\t\tvar centerY = (chartArea.top + chartArea.bottom) / 2;\r\n\t\tvar startAngle = opts.rotation; // non reset case handled later\r\n\t\tvar endAngle = opts.rotation; // non reset case handled later\r\n\t\tvar dataset = me.getDataset();\r\n\t\tvar circumference = reset && animationOpts.animateRotate ? 0 : arc.hidden ? 0 : me.calculateCircumference(dataset.data[index]) * (opts.circumference / DOUBLE_PI$1);\r\n\t\tvar innerRadius = reset && animationOpts.animateScale ? 0 : me.innerRadius;\r\n\t\tvar outerRadius = reset && animationOpts.animateScale ? 0 : me.outerRadius;\r\n\t\tvar options = arc._options || {};\r\n\r\n\t\thelpers$1.extend(arc, {\r\n\t\t\t// Utility\r\n\t\t\t_datasetIndex: me.index,\r\n\t\t\t_index: index,\r\n\r\n\t\t\t// Desired view properties\r\n\t\t\t_model: {\r\n\t\t\t\tbackgroundColor: options.backgroundColor,\r\n\t\t\t\tborderColor: options.borderColor,\r\n\t\t\t\tborderWidth: options.borderWidth,\r\n\t\t\t\tborderAlign: options.borderAlign,\r\n\t\t\t\tx: centerX + chart.offsetX,\r\n\t\t\t\ty: centerY + chart.offsetY,\r\n\t\t\t\tstartAngle: startAngle,\r\n\t\t\t\tendAngle: endAngle,\r\n\t\t\t\tcircumference: circumference,\r\n\t\t\t\touterRadius: outerRadius,\r\n\t\t\t\tinnerRadius: innerRadius,\r\n\t\t\t\tlabel: helpers$1.valueAtIndexOrDefault(dataset.label, index, chart.data.labels[index])\r\n\t\t\t}\r\n\t\t});\r\n\r\n\t\tvar model = arc._model;\r\n\r\n\t\t// Set correct angles if not resetting\r\n\t\tif (!reset || !animationOpts.animateRotate) {\r\n\t\t\tif (index === 0) {\r\n\t\t\t\tmodel.startAngle = opts.rotation;\r\n\t\t\t} else {\r\n\t\t\t\tmodel.startAngle = me.getMeta().data[index - 1]._model.endAngle;\r\n\t\t\t}\r\n\r\n\t\t\tmodel.endAngle = model.startAngle + model.circumference;\r\n\t\t}\r\n\r\n\t\tarc.pivot();\r\n\t},\r\n\r\n\tcalculateTotal: function() {\r\n\t\tvar dataset = this.getDataset();\r\n\t\tvar meta = this.getMeta();\r\n\t\tvar total = 0;\r\n\t\tvar value;\r\n\r\n\t\thelpers$1.each(meta.data, function(element, index) {\r\n\t\t\tvalue = dataset.data[index];\r\n\t\t\tif (!isNaN(value) && !element.hidden) {\r\n\t\t\t\ttotal += Math.abs(value);\r\n\t\t\t}\r\n\t\t});\r\n\r\n\t\t/* if (total === 0) {\r\n\t\t\ttotal = NaN;\r\n\t\t}*/\r\n\r\n\t\treturn total;\r\n\t},\r\n\r\n\tcalculateCircumference: function(value) {\r\n\t\tvar total = this.getMeta().total;\r\n\t\tif (total > 0 && !isNaN(value)) {\r\n\t\t\treturn DOUBLE_PI$1 * (Math.abs(value) / total);\r\n\t\t}\r\n\t\treturn 0;\r\n\t},\r\n\r\n\t// gets the max border or hover width to properly scale pie charts\r\n\tgetMaxBorderWidth: function(arcs) {\r\n\t\tvar me = this;\r\n\t\tvar max = 0;\r\n\t\tvar chart = me.chart;\r\n\t\tvar i, ilen, meta, arc, controller, options, borderWidth, hoverWidth;\r\n\r\n\t\tif (!arcs) {\r\n\t\t\t// Find the outmost visible dataset\r\n\t\t\tfor (i = 0, ilen = chart.data.datasets.length; i < ilen; ++i) {\r\n\t\t\t\tif (chart.isDatasetVisible(i)) {\r\n\t\t\t\t\tmeta = chart.getDatasetMeta(i);\r\n\t\t\t\t\tarcs = meta.data;\r\n\t\t\t\t\tif (i !== me.index) {\r\n\t\t\t\t\t\tcontroller = meta.controller;\r\n\t\t\t\t\t}\r\n\t\t\t\t\tbreak;\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tif (!arcs) {\r\n\t\t\treturn 0;\r\n\t\t}\r\n\r\n\t\tfor (i = 0, ilen = arcs.length; i < ilen; ++i) {\r\n\t\t\tarc = arcs[i];\r\n\t\t\tif (controller) {\r\n\t\t\t\tcontroller._configure();\r\n\t\t\t\toptions = controller._resolveDataElementOptions(arc, i);\r\n\t\t\t} else {\r\n\t\t\t\toptions = arc._options;\r\n\t\t\t}\r\n\t\t\tif (options.borderAlign !== 'inner') {\r\n\t\t\t\tborderWidth = options.borderWidth;\r\n\t\t\t\thoverWidth = options.hoverBorderWidth;\r\n\r\n\t\t\t\tmax = borderWidth > max ? borderWidth : max;\r\n\t\t\t\tmax = hoverWidth > max ? hoverWidth : max;\r\n\t\t\t}\r\n\t\t}\r\n\t\treturn max;\r\n\t},\r\n\r\n\t/**\r\n\t * @protected\r\n\t */\r\n\tsetHoverStyle: function(arc) {\r\n\t\tvar model = arc._model;\r\n\t\tvar options = arc._options;\r\n\t\tvar getHoverColor = helpers$1.getHoverColor;\r\n\r\n\t\tarc.$previousStyle = {\r\n\t\t\tbackgroundColor: model.backgroundColor,\r\n\t\t\tborderColor: model.borderColor,\r\n\t\t\tborderWidth: model.borderWidth,\r\n\t\t};\r\n\r\n\t\tmodel.backgroundColor = valueOrDefault$5(options.hoverBackgroundColor, getHoverColor(options.backgroundColor));\r\n\t\tmodel.borderColor = valueOrDefault$5(options.hoverBorderColor, getHoverColor(options.borderColor));\r\n\t\tmodel.borderWidth = valueOrDefault$5(options.hoverBorderWidth, options.borderWidth);\r\n\t},\r\n\r\n\t/**\r\n\t * Get radius length offset of the dataset in relation to the visible datasets weights. This allows determining the inner and outer radius correctly\r\n\t * @private\r\n\t */\r\n\t_getRingWeightOffset: function(datasetIndex) {\r\n\t\tvar ringWeightOffset = 0;\r\n\r\n\t\tfor (var i = 0; i < datasetIndex; ++i) {\r\n\t\t\tif (this.chart.isDatasetVisible(i)) {\r\n\t\t\t\tringWeightOffset += this._getRingWeight(i);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn ringWeightOffset;\r\n\t},\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\t_getRingWeight: function(dataSetIndex) {\r\n\t\treturn Math.max(valueOrDefault$5(this.chart.data.datasets[dataSetIndex].weight, 1), 0);\r\n\t},\r\n\r\n\t/**\r\n\t * Returns the sum of all visibile data set weights. This value can be 0.\r\n\t * @private\r\n\t */\r\n\t_getVisibleDatasetWeightTotal: function() {\r\n\t\treturn this._getRingWeightOffset(this.chart.data.datasets.length);\r\n\t}\r\n});\n\ncore_defaults._set('horizontalBar', {\r\n\thover: {\r\n\t\tmode: 'index',\r\n\t\taxis: 'y'\r\n\t},\r\n\r\n\tscales: {\r\n\t\txAxes: [{\r\n\t\t\ttype: 'linear',\r\n\t\t\tposition: 'bottom'\r\n\t\t}],\r\n\r\n\t\tyAxes: [{\r\n\t\t\ttype: 'category',\r\n\t\t\tposition: 'left',\r\n\t\t\toffset: true,\r\n\t\t\tgridLines: {\r\n\t\t\t\toffsetGridLines: true\r\n\t\t\t}\r\n\t\t}]\r\n\t},\r\n\r\n\telements: {\r\n\t\trectangle: {\r\n\t\t\tborderSkipped: 'left'\r\n\t\t}\r\n\t},\r\n\r\n\ttooltips: {\r\n\t\tmode: 'index',\r\n\t\taxis: 'y'\r\n\t}\r\n});\r\n\r\ncore_defaults._set('global', {\r\n\tdatasets: {\r\n\t\thorizontalBar: {\r\n\t\t\tcategoryPercentage: 0.8,\r\n\t\t\tbarPercentage: 0.9\r\n\t\t}\r\n\t}\r\n});\r\n\r\nvar controller_horizontalBar = controller_bar.extend({\r\n\t/**\r\n\t * @private\r\n\t */\r\n\t_getValueScaleId: function() {\r\n\t\treturn this.getMeta().xAxisID;\r\n\t},\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\t_getIndexScaleId: function() {\r\n\t\treturn this.getMeta().yAxisID;\r\n\t}\r\n});\n\nvar valueOrDefault$6 = helpers$1.valueOrDefault;\r\nvar resolve$2 = helpers$1.options.resolve;\r\nvar isPointInArea = helpers$1.canvas._isPointInArea;\r\n\r\ncore_defaults._set('line', {\r\n\tshowLines: true,\r\n\tspanGaps: false,\r\n\r\n\thover: {\r\n\t\tmode: 'label'\r\n\t},\r\n\r\n\tscales: {\r\n\t\txAxes: [{\r\n\t\t\ttype: 'category',\r\n\t\t\tid: 'x-axis-0'\r\n\t\t}],\r\n\t\tyAxes: [{\r\n\t\t\ttype: 'linear',\r\n\t\t\tid: 'y-axis-0'\r\n\t\t}]\r\n\t}\r\n});\r\n\r\nfunction scaleClip(scale, halfBorderWidth) {\r\n\tvar tickOpts = scale && scale.options.ticks || {};\r\n\tvar reverse = tickOpts.reverse;\r\n\tvar min = tickOpts.min === undefined ? halfBorderWidth : 0;\r\n\tvar max = tickOpts.max === undefined ? halfBorderWidth : 0;\r\n\treturn {\r\n\t\tstart: reverse ? max : min,\r\n\t\tend: reverse ? min : max\r\n\t};\r\n}\r\n\r\nfunction defaultClip(xScale, yScale, borderWidth) {\r\n\tvar halfBorderWidth = borderWidth / 2;\r\n\tvar x = scaleClip(xScale, halfBorderWidth);\r\n\tvar y = scaleClip(yScale, halfBorderWidth);\r\n\r\n\treturn {\r\n\t\ttop: y.end,\r\n\t\tright: x.end,\r\n\t\tbottom: y.start,\r\n\t\tleft: x.start\r\n\t};\r\n}\r\n\r\nfunction toClip(value) {\r\n\tvar t, r, b, l;\r\n\r\n\tif (helpers$1.isObject(value)) {\r\n\t\tt = value.top;\r\n\t\tr = value.right;\r\n\t\tb = value.bottom;\r\n\t\tl = value.left;\r\n\t} else {\r\n\t\tt = r = b = l = value;\r\n\t}\r\n\r\n\treturn {\r\n\t\ttop: t,\r\n\t\tright: r,\r\n\t\tbottom: b,\r\n\t\tleft: l\r\n\t};\r\n}\r\n\r\n\r\nvar controller_line = core_datasetController.extend({\r\n\r\n\tdatasetElementType: elements.Line,\r\n\r\n\tdataElementType: elements.Point,\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\t_datasetElementOptions: [\r\n\t\t'backgroundColor',\r\n\t\t'borderCapStyle',\r\n\t\t'borderColor',\r\n\t\t'borderDash',\r\n\t\t'borderDashOffset',\r\n\t\t'borderJoinStyle',\r\n\t\t'borderWidth',\r\n\t\t'cubicInterpolationMode',\r\n\t\t'fill'\r\n\t],\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\t_dataElementOptions: {\r\n\t\tbackgroundColor: 'pointBackgroundColor',\r\n\t\tborderColor: 'pointBorderColor',\r\n\t\tborderWidth: 'pointBorderWidth',\r\n\t\thitRadius: 'pointHitRadius',\r\n\t\thoverBackgroundColor: 'pointHoverBackgroundColor',\r\n\t\thoverBorderColor: 'pointHoverBorderColor',\r\n\t\thoverBorderWidth: 'pointHoverBorderWidth',\r\n\t\thoverRadius: 'pointHoverRadius',\r\n\t\tpointStyle: 'pointStyle',\r\n\t\tradius: 'pointRadius',\r\n\t\trotation: 'pointRotation'\r\n\t},\r\n\r\n\tupdate: function(reset) {\r\n\t\tvar me = this;\r\n\t\tvar meta = me.getMeta();\r\n\t\tvar line = meta.dataset;\r\n\t\tvar points = meta.data || [];\r\n\t\tvar options = me.chart.options;\r\n\t\tvar config = me._config;\r\n\t\tvar showLine = me._showLine = valueOrDefault$6(config.showLine, options.showLines);\r\n\t\tvar i, ilen;\r\n\r\n\t\tme._xScale = me.getScaleForId(meta.xAxisID);\r\n\t\tme._yScale = me.getScaleForId(meta.yAxisID);\r\n\r\n\t\t// Update Line\r\n\t\tif (showLine) {\r\n\t\t\t// Compatibility: If the properties are defined with only the old name, use those values\r\n\t\t\tif (config.tension !== undefined && config.lineTension === undefined) {\r\n\t\t\t\tconfig.lineTension = config.tension;\r\n\t\t\t}\r\n\r\n\t\t\t// Utility\r\n\t\t\tline._scale = me._yScale;\r\n\t\t\tline._datasetIndex = me.index;\r\n\t\t\t// Data\r\n\t\t\tline._children = points;\r\n\t\t\t// Model\r\n\t\t\tline._model = me._resolveDatasetElementOptions(line);\r\n\r\n\t\t\tline.pivot();\r\n\t\t}\r\n\r\n\t\t// Update Points\r\n\t\tfor (i = 0, ilen = points.length; i < ilen; ++i) {\r\n\t\t\tme.updateElement(points[i], i, reset);\r\n\t\t}\r\n\r\n\t\tif (showLine && line._model.tension !== 0) {\r\n\t\t\tme.updateBezierControlPoints();\r\n\t\t}\r\n\r\n\t\t// Now pivot the point for animation\r\n\t\tfor (i = 0, ilen = points.length; i < ilen; ++i) {\r\n\t\t\tpoints[i].pivot();\r\n\t\t}\r\n\t},\r\n\r\n\tupdateElement: function(point, index, reset) {\r\n\t\tvar me = this;\r\n\t\tvar meta = me.getMeta();\r\n\t\tvar custom = point.custom || {};\r\n\t\tvar dataset = me.getDataset();\r\n\t\tvar datasetIndex = me.index;\r\n\t\tvar value = dataset.data[index];\r\n\t\tvar xScale = me._xScale;\r\n\t\tvar yScale = me._yScale;\r\n\t\tvar lineModel = meta.dataset._model;\r\n\t\tvar x, y;\r\n\r\n\t\tvar options = me._resolveDataElementOptions(point, index);\r\n\r\n\t\tx = xScale.getPixelForValue(typeof value === 'object' ? value : NaN, index, datasetIndex);\r\n\t\ty = reset ? yScale.getBasePixel() : me.calculatePointY(value, index, datasetIndex);\r\n\r\n\t\t// Utility\r\n\t\tpoint._xScale = xScale;\r\n\t\tpoint._yScale = yScale;\r\n\t\tpoint._options = options;\r\n\t\tpoint._datasetIndex = datasetIndex;\r\n\t\tpoint._index = index;\r\n\r\n\t\t// Desired view properties\r\n\t\tpoint._model = {\r\n\t\t\tx: x,\r\n\t\t\ty: y,\r\n\t\t\tskip: custom.skip || isNaN(x) || isNaN(y),\r\n\t\t\t// Appearance\r\n\t\t\tradius: options.radius,\r\n\t\t\tpointStyle: options.pointStyle,\r\n\t\t\trotation: options.rotation,\r\n\t\t\tbackgroundColor: options.backgroundColor,\r\n\t\t\tborderColor: options.borderColor,\r\n\t\t\tborderWidth: options.borderWidth,\r\n\t\t\ttension: valueOrDefault$6(custom.tension, lineModel ? lineModel.tension : 0),\r\n\t\t\tsteppedLine: lineModel ? lineModel.steppedLine : false,\r\n\t\t\t// Tooltip\r\n\t\t\thitRadius: options.hitRadius\r\n\t\t};\r\n\t},\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\t_resolveDatasetElementOptions: function(element) {\r\n\t\tvar me = this;\r\n\t\tvar config = me._config;\r\n\t\tvar custom = element.custom || {};\r\n\t\tvar options = me.chart.options;\r\n\t\tvar lineOptions = options.elements.line;\r\n\t\tvar values = core_datasetController.prototype._resolveDatasetElementOptions.apply(me, arguments);\r\n\r\n\t\t// The default behavior of lines is to break at null values, according\r\n\t\t// to https://github.com/chartjs/Chart.js/issues/2435#issuecomment-216718158\r\n\t\t// This option gives lines the ability to span gaps\r\n\t\tvalues.spanGaps = valueOrDefault$6(config.spanGaps, options.spanGaps);\r\n\t\tvalues.tension = valueOrDefault$6(config.lineTension, lineOptions.tension);\r\n\t\tvalues.steppedLine = resolve$2([custom.steppedLine, config.steppedLine, lineOptions.stepped]);\r\n\t\tvalues.clip = toClip(valueOrDefault$6(config.clip, defaultClip(me._xScale, me._yScale, values.borderWidth)));\r\n\r\n\t\treturn values;\r\n\t},\r\n\r\n\tcalculatePointY: function(value, index, datasetIndex) {\r\n\t\tvar me = this;\r\n\t\tvar chart = me.chart;\r\n\t\tvar yScale = me._yScale;\r\n\t\tvar sumPos = 0;\r\n\t\tvar sumNeg = 0;\r\n\t\tvar i, ds, dsMeta, stackedRightValue, rightValue, metasets, ilen;\r\n\r\n\t\tif (yScale.options.stacked) {\r\n\t\t\trightValue = +yScale.getRightValue(value);\r\n\t\t\tmetasets = chart._getSortedVisibleDatasetMetas();\r\n\t\t\tilen = metasets.length;\r\n\r\n\t\t\tfor (i = 0; i < ilen; ++i) {\r\n\t\t\t\tdsMeta = metasets[i];\r\n\t\t\t\tif (dsMeta.index === datasetIndex) {\r\n\t\t\t\t\tbreak;\r\n\t\t\t\t}\r\n\r\n\t\t\t\tds = chart.data.datasets[dsMeta.index];\r\n\t\t\t\tif (dsMeta.type === 'line' && dsMeta.yAxisID === yScale.id) {\r\n\t\t\t\t\tstackedRightValue = +yScale.getRightValue(ds.data[index]);\r\n\t\t\t\t\tif (stackedRightValue < 0) {\r\n\t\t\t\t\t\tsumNeg += stackedRightValue || 0;\r\n\t\t\t\t\t} else {\r\n\t\t\t\t\t\tsumPos += stackedRightValue || 0;\r\n\t\t\t\t\t}\r\n\t\t\t\t}\r\n\t\t\t}\r\n\r\n\t\t\tif (rightValue < 0) {\r\n\t\t\t\treturn yScale.getPixelForValue(sumNeg + rightValue);\r\n\t\t\t}\r\n\t\t\treturn yScale.getPixelForValue(sumPos + rightValue);\r\n\t\t}\r\n\t\treturn yScale.getPixelForValue(value);\r\n\t},\r\n\r\n\tupdateBezierControlPoints: function() {\r\n\t\tvar me = this;\r\n\t\tvar chart = me.chart;\r\n\t\tvar meta = me.getMeta();\r\n\t\tvar lineModel = meta.dataset._model;\r\n\t\tvar area = chart.chartArea;\r\n\t\tvar points = meta.data || [];\r\n\t\tvar i, ilen, model, controlPoints;\r\n\r\n\t\t// Only consider points that are drawn in case the spanGaps option is used\r\n\t\tif (lineModel.spanGaps) {\r\n\t\t\tpoints = points.filter(function(pt) {\r\n\t\t\t\treturn !pt._model.skip;\r\n\t\t\t});\r\n\t\t}\r\n\r\n\t\tfunction capControlPoint(pt, min, max) {\r\n\t\t\treturn Math.max(Math.min(pt, max), min);\r\n\t\t}\r\n\r\n\t\tif (lineModel.cubicInterpolationMode === 'monotone') {\r\n\t\t\thelpers$1.splineCurveMonotone(points);\r\n\t\t} else {\r\n\t\t\tfor (i = 0, ilen = points.length; i < ilen; ++i) {\r\n\t\t\t\tmodel = points[i]._model;\r\n\t\t\t\tcontrolPoints = helpers$1.splineCurve(\r\n\t\t\t\t\thelpers$1.previousItem(points, i)._model,\r\n\t\t\t\t\tmodel,\r\n\t\t\t\t\thelpers$1.nextItem(points, i)._model,\r\n\t\t\t\t\tlineModel.tension\r\n\t\t\t\t);\r\n\t\t\t\tmodel.controlPointPreviousX = controlPoints.previous.x;\r\n\t\t\t\tmodel.controlPointPreviousY = controlPoints.previous.y;\r\n\t\t\t\tmodel.controlPointNextX = controlPoints.next.x;\r\n\t\t\t\tmodel.controlPointNextY = controlPoints.next.y;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tif (chart.options.elements.line.capBezierPoints) {\r\n\t\t\tfor (i = 0, ilen = points.length; i < ilen; ++i) {\r\n\t\t\t\tmodel = points[i]._model;\r\n\t\t\t\tif (isPointInArea(model, area)) {\r\n\t\t\t\t\tif (i > 0 && isPointInArea(points[i - 1]._model, area)) {\r\n\t\t\t\t\t\tmodel.controlPointPreviousX = capControlPoint(model.controlPointPreviousX, area.left, area.right);\r\n\t\t\t\t\t\tmodel.controlPointPreviousY = capControlPoint(model.controlPointPreviousY, area.top, area.bottom);\r\n\t\t\t\t\t}\r\n\t\t\t\t\tif (i < points.length - 1 && isPointInArea(points[i + 1]._model, area)) {\r\n\t\t\t\t\t\tmodel.controlPointNextX = capControlPoint(model.controlPointNextX, area.left, area.right);\r\n\t\t\t\t\t\tmodel.controlPointNextY = capControlPoint(model.controlPointNextY, area.top, area.bottom);\r\n\t\t\t\t\t}\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t}\r\n\t},\r\n\r\n\tdraw: function() {\r\n\t\tvar me = this;\r\n\t\tvar chart = me.chart;\r\n\t\tvar meta = me.getMeta();\r\n\t\tvar points = meta.data || [];\r\n\t\tvar area = chart.chartArea;\r\n\t\tvar canvas = chart.canvas;\r\n\t\tvar i = 0;\r\n\t\tvar ilen = points.length;\r\n\t\tvar clip;\r\n\r\n\t\tif (me._showLine) {\r\n\t\t\tclip = meta.dataset._model.clip;\r\n\r\n\t\t\thelpers$1.canvas.clipArea(chart.ctx, {\r\n\t\t\t\tleft: clip.left === false ? 0 : area.left - clip.left,\r\n\t\t\t\tright: clip.right === false ? canvas.width : area.right + clip.right,\r\n\t\t\t\ttop: clip.top === false ? 0 : area.top - clip.top,\r\n\t\t\t\tbottom: clip.bottom === false ? canvas.height : area.bottom + clip.bottom\r\n\t\t\t});\r\n\r\n\t\t\tmeta.dataset.draw();\r\n\r\n\t\t\thelpers$1.canvas.unclipArea(chart.ctx);\r\n\t\t}\r\n\r\n\t\t// Draw the points\r\n\t\tfor (; i < ilen; ++i) {\r\n\t\t\tpoints[i].draw(area);\r\n\t\t}\r\n\t},\r\n\r\n\t/**\r\n\t * @protected\r\n\t */\r\n\tsetHoverStyle: function(point) {\r\n\t\tvar model = point._model;\r\n\t\tvar options = point._options;\r\n\t\tvar getHoverColor = helpers$1.getHoverColor;\r\n\r\n\t\tpoint.$previousStyle = {\r\n\t\t\tbackgroundColor: model.backgroundColor,\r\n\t\t\tborderColor: model.borderColor,\r\n\t\t\tborderWidth: model.borderWidth,\r\n\t\t\tradius: model.radius\r\n\t\t};\r\n\r\n\t\tmodel.backgroundColor = valueOrDefault$6(options.hoverBackgroundColor, getHoverColor(options.backgroundColor));\r\n\t\tmodel.borderColor = valueOrDefault$6(options.hoverBorderColor, getHoverColor(options.borderColor));\r\n\t\tmodel.borderWidth = valueOrDefault$6(options.hoverBorderWidth, options.borderWidth);\r\n\t\tmodel.radius = valueOrDefault$6(options.hoverRadius, options.radius);\r\n\t},\r\n});\n\nvar resolve$3 = helpers$1.options.resolve;\r\n\r\ncore_defaults._set('polarArea', {\r\n\tscale: {\r\n\t\ttype: 'radialLinear',\r\n\t\tangleLines: {\r\n\t\t\tdisplay: false\r\n\t\t},\r\n\t\tgridLines: {\r\n\t\t\tcircular: true\r\n\t\t},\r\n\t\tpointLabels: {\r\n\t\t\tdisplay: false\r\n\t\t},\r\n\t\tticks: {\r\n\t\t\tbeginAtZero: true\r\n\t\t}\r\n\t},\r\n\r\n\t// Boolean - Whether to animate the rotation of the chart\r\n\tanimation: {\r\n\t\tanimateRotate: true,\r\n\t\tanimateScale: true\r\n\t},\r\n\r\n\tstartAngle: -0.5 * Math.PI,\r\n\tlegendCallback: function(chart) {\r\n\t\tvar list = document.createElement('ul');\r\n\t\tvar data = chart.data;\r\n\t\tvar datasets = data.datasets;\r\n\t\tvar labels = data.labels;\r\n\t\tvar i, ilen, listItem, listItemSpan;\r\n\r\n\t\tlist.setAttribute('class', chart.id + '-legend');\r\n\t\tif (datasets.length) {\r\n\t\t\tfor (i = 0, ilen = datasets[0].data.length; i < ilen; ++i) {\r\n\t\t\t\tlistItem = list.appendChild(document.createElement('li'));\r\n\t\t\t\tlistItemSpan = listItem.appendChild(document.createElement('span'));\r\n\t\t\t\tlistItemSpan.style.backgroundColor = datasets[0].backgroundColor[i];\r\n\t\t\t\tif (labels[i]) {\r\n\t\t\t\t\tlistItem.appendChild(document.createTextNode(labels[i]));\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn list.outerHTML;\r\n\t},\r\n\tlegend: {\r\n\t\tlabels: {\r\n\t\t\tgenerateLabels: function(chart) {\r\n\t\t\t\tvar data = chart.data;\r\n\t\t\t\tif (data.labels.length && data.datasets.length) {\r\n\t\t\t\t\treturn data.labels.map(function(label, i) {\r\n\t\t\t\t\t\tvar meta = chart.getDatasetMeta(0);\r\n\t\t\t\t\t\tvar style = meta.controller.getStyle(i);\r\n\r\n\t\t\t\t\t\treturn {\r\n\t\t\t\t\t\t\ttext: label,\r\n\t\t\t\t\t\t\tfillStyle: style.backgroundColor,\r\n\t\t\t\t\t\t\tstrokeStyle: style.borderColor,\r\n\t\t\t\t\t\t\tlineWidth: style.borderWidth,\r\n\t\t\t\t\t\t\thidden: isNaN(data.datasets[0].data[i]) || meta.data[i].hidden,\r\n\r\n\t\t\t\t\t\t\t// Extra data used for toggling the correct item\r\n\t\t\t\t\t\t\tindex: i\r\n\t\t\t\t\t\t};\r\n\t\t\t\t\t});\r\n\t\t\t\t}\r\n\t\t\t\treturn [];\r\n\t\t\t}\r\n\t\t},\r\n\r\n\t\tonClick: function(e, legendItem) {\r\n\t\t\tvar index = legendItem.index;\r\n\t\t\tvar chart = this.chart;\r\n\t\t\tvar i, ilen, meta;\r\n\r\n\t\t\tfor (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) {\r\n\t\t\t\tmeta = chart.getDatasetMeta(i);\r\n\t\t\t\tmeta.data[index].hidden = !meta.data[index].hidden;\r\n\t\t\t}\r\n\r\n\t\t\tchart.update();\r\n\t\t}\r\n\t},\r\n\r\n\t// Need to override these to give a nice default\r\n\ttooltips: {\r\n\t\tcallbacks: {\r\n\t\t\ttitle: function() {\r\n\t\t\t\treturn '';\r\n\t\t\t},\r\n\t\t\tlabel: function(item, data) {\r\n\t\t\t\treturn data.labels[item.index] + ': ' + item.yLabel;\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n});\r\n\r\nvar controller_polarArea = core_datasetController.extend({\r\n\r\n\tdataElementType: elements.Arc,\r\n\r\n\tlinkScales: helpers$1.noop,\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\t_dataElementOptions: [\r\n\t\t'backgroundColor',\r\n\t\t'borderColor',\r\n\t\t'borderWidth',\r\n\t\t'borderAlign',\r\n\t\t'hoverBackgroundColor',\r\n\t\t'hoverBorderColor',\r\n\t\t'hoverBorderWidth',\r\n\t],\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\t_getIndexScaleId: function() {\r\n\t\treturn this.chart.scale.id;\r\n\t},\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\t_getValueScaleId: function() {\r\n\t\treturn this.chart.scale.id;\r\n\t},\r\n\r\n\tupdate: function(reset) {\r\n\t\tvar me = this;\r\n\t\tvar dataset = me.getDataset();\r\n\t\tvar meta = me.getMeta();\r\n\t\tvar start = me.chart.options.startAngle || 0;\r\n\t\tvar starts = me._starts = [];\r\n\t\tvar angles = me._angles = [];\r\n\t\tvar arcs = meta.data;\r\n\t\tvar i, ilen, angle;\r\n\r\n\t\tme._updateRadius();\r\n\r\n\t\tmeta.count = me.countVisibleElements();\r\n\r\n\t\tfor (i = 0, ilen = dataset.data.length; i < ilen; i++) {\r\n\t\t\tstarts[i] = start;\r\n\t\t\tangle = me._computeAngle(i);\r\n\t\t\tangles[i] = angle;\r\n\t\t\tstart += angle;\r\n\t\t}\r\n\r\n\t\tfor (i = 0, ilen = arcs.length; i < ilen; ++i) {\r\n\t\t\tarcs[i]._options = me._resolveDataElementOptions(arcs[i], i);\r\n\t\t\tme.updateElement(arcs[i], i, reset);\r\n\t\t}\r\n\t},\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\t_updateRadius: function() {\r\n\t\tvar me = this;\r\n\t\tvar chart = me.chart;\r\n\t\tvar chartArea = chart.chartArea;\r\n\t\tvar opts = chart.options;\r\n\t\tvar minSize = Math.min(chartArea.right - chartArea.left, chartArea.bottom - chartArea.top);\r\n\r\n\t\tchart.outerRadius = Math.max(minSize / 2, 0);\r\n\t\tchart.innerRadius = Math.max(opts.cutoutPercentage ? (chart.outerRadius / 100) * (opts.cutoutPercentage) : 1, 0);\r\n\t\tchart.radiusLength = (chart.outerRadius - chart.innerRadius) / chart.getVisibleDatasetCount();\r\n\r\n\t\tme.outerRadius = chart.outerRadius - (chart.radiusLength * me.index);\r\n\t\tme.innerRadius = me.outerRadius - chart.radiusLength;\r\n\t},\r\n\r\n\tupdateElement: function(arc, index, reset) {\r\n\t\tvar me = this;\r\n\t\tvar chart = me.chart;\r\n\t\tvar dataset = me.getDataset();\r\n\t\tvar opts = chart.options;\r\n\t\tvar animationOpts = opts.animation;\r\n\t\tvar scale = chart.scale;\r\n\t\tvar labels = chart.data.labels;\r\n\r\n\t\tvar centerX = scale.xCenter;\r\n\t\tvar centerY = scale.yCenter;\r\n\r\n\t\t// var negHalfPI = -0.5 * Math.PI;\r\n\t\tvar datasetStartAngle = opts.startAngle;\r\n\t\tvar distance = arc.hidden ? 0 : scale.getDistanceFromCenterForValue(dataset.data[index]);\r\n\t\tvar startAngle = me._starts[index];\r\n\t\tvar endAngle = startAngle + (arc.hidden ? 0 : me._angles[index]);\r\n\r\n\t\tvar resetRadius = animationOpts.animateScale ? 0 : scale.getDistanceFromCenterForValue(dataset.data[index]);\r\n\t\tvar options = arc._options || {};\r\n\r\n\t\thelpers$1.extend(arc, {\r\n\t\t\t// Utility\r\n\t\t\t_datasetIndex: me.index,\r\n\t\t\t_index: index,\r\n\t\t\t_scale: scale,\r\n\r\n\t\t\t// Desired view properties\r\n\t\t\t_model: {\r\n\t\t\t\tbackgroundColor: options.backgroundColor,\r\n\t\t\t\tborderColor: options.borderColor,\r\n\t\t\t\tborderWidth: options.borderWidth,\r\n\t\t\t\tborderAlign: options.borderAlign,\r\n\t\t\t\tx: centerX,\r\n\t\t\t\ty: centerY,\r\n\t\t\t\tinnerRadius: 0,\r\n\t\t\t\touterRadius: reset ? resetRadius : distance,\r\n\t\t\t\tstartAngle: reset && animationOpts.animateRotate ? datasetStartAngle : startAngle,\r\n\t\t\t\tendAngle: reset && animationOpts.animateRotate ? datasetStartAngle : endAngle,\r\n\t\t\t\tlabel: helpers$1.valueAtIndexOrDefault(labels, index, labels[index])\r\n\t\t\t}\r\n\t\t});\r\n\r\n\t\tarc.pivot();\r\n\t},\r\n\r\n\tcountVisibleElements: function() {\r\n\t\tvar dataset = this.getDataset();\r\n\t\tvar meta = this.getMeta();\r\n\t\tvar count = 0;\r\n\r\n\t\thelpers$1.each(meta.data, function(element, index) {\r\n\t\t\tif (!isNaN(dataset.data[index]) && !element.hidden) {\r\n\t\t\t\tcount++;\r\n\t\t\t}\r\n\t\t});\r\n\r\n\t\treturn count;\r\n\t},\r\n\r\n\t/**\r\n\t * @protected\r\n\t */\r\n\tsetHoverStyle: function(arc) {\r\n\t\tvar model = arc._model;\r\n\t\tvar options = arc._options;\r\n\t\tvar getHoverColor = helpers$1.getHoverColor;\r\n\t\tvar valueOrDefault = helpers$1.valueOrDefault;\r\n\r\n\t\tarc.$previousStyle = {\r\n\t\t\tbackgroundColor: model.backgroundColor,\r\n\t\t\tborderColor: model.borderColor,\r\n\t\t\tborderWidth: model.borderWidth,\r\n\t\t};\r\n\r\n\t\tmodel.backgroundColor = valueOrDefault(options.hoverBackgroundColor, getHoverColor(options.backgroundColor));\r\n\t\tmodel.borderColor = valueOrDefault(options.hoverBorderColor, getHoverColor(options.borderColor));\r\n\t\tmodel.borderWidth = valueOrDefault(options.hoverBorderWidth, options.borderWidth);\r\n\t},\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\t_computeAngle: function(index) {\r\n\t\tvar me = this;\r\n\t\tvar count = this.getMeta().count;\r\n\t\tvar dataset = me.getDataset();\r\n\t\tvar meta = me.getMeta();\r\n\r\n\t\tif (isNaN(dataset.data[index]) || meta.data[index].hidden) {\r\n\t\t\treturn 0;\r\n\t\t}\r\n\r\n\t\t// Scriptable options\r\n\t\tvar context = {\r\n\t\t\tchart: me.chart,\r\n\t\t\tdataIndex: index,\r\n\t\t\tdataset: dataset,\r\n\t\t\tdatasetIndex: me.index\r\n\t\t};\r\n\r\n\t\treturn resolve$3([\r\n\t\t\tme.chart.options.elements.arc.angle,\r\n\t\t\t(2 * Math.PI) / count\r\n\t\t], context, index);\r\n\t}\r\n});\n\ncore_defaults._set('pie', helpers$1.clone(core_defaults.doughnut));\r\ncore_defaults._set('pie', {\r\n\tcutoutPercentage: 0\r\n});\r\n\r\n// Pie charts are Doughnut chart with different defaults\r\nvar controller_pie = controller_doughnut;\n\nvar valueOrDefault$7 = helpers$1.valueOrDefault;\r\n\r\ncore_defaults._set('radar', {\r\n\tspanGaps: false,\r\n\tscale: {\r\n\t\ttype: 'radialLinear'\r\n\t},\r\n\telements: {\r\n\t\tline: {\r\n\t\t\tfill: 'start',\r\n\t\t\ttension: 0 // no bezier in radar\r\n\t\t}\r\n\t}\r\n});\r\n\r\nvar controller_radar = core_datasetController.extend({\r\n\tdatasetElementType: elements.Line,\r\n\r\n\tdataElementType: elements.Point,\r\n\r\n\tlinkScales: helpers$1.noop,\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\t_datasetElementOptions: [\r\n\t\t'backgroundColor',\r\n\t\t'borderWidth',\r\n\t\t'borderColor',\r\n\t\t'borderCapStyle',\r\n\t\t'borderDash',\r\n\t\t'borderDashOffset',\r\n\t\t'borderJoinStyle',\r\n\t\t'fill'\r\n\t],\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\t_dataElementOptions: {\r\n\t\tbackgroundColor: 'pointBackgroundColor',\r\n\t\tborderColor: 'pointBorderColor',\r\n\t\tborderWidth: 'pointBorderWidth',\r\n\t\thitRadius: 'pointHitRadius',\r\n\t\thoverBackgroundColor: 'pointHoverBackgroundColor',\r\n\t\thoverBorderColor: 'pointHoverBorderColor',\r\n\t\thoverBorderWidth: 'pointHoverBorderWidth',\r\n\t\thoverRadius: 'pointHoverRadius',\r\n\t\tpointStyle: 'pointStyle',\r\n\t\tradius: 'pointRadius',\r\n\t\trotation: 'pointRotation'\r\n\t},\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\t_getIndexScaleId: function() {\r\n\t\treturn this.chart.scale.id;\r\n\t},\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\t_getValueScaleId: function() {\r\n\t\treturn this.chart.scale.id;\r\n\t},\r\n\r\n\tupdate: function(reset) {\r\n\t\tvar me = this;\r\n\t\tvar meta = me.getMeta();\r\n\t\tvar line = meta.dataset;\r\n\t\tvar points = meta.data || [];\r\n\t\tvar scale = me.chart.scale;\r\n\t\tvar config = me._config;\r\n\t\tvar i, ilen;\r\n\r\n\t\t// Compatibility: If the properties are defined with only the old name, use those values\r\n\t\tif (config.tension !== undefined && config.lineTension === undefined) {\r\n\t\t\tconfig.lineTension = config.tension;\r\n\t\t}\r\n\r\n\t\t// Utility\r\n\t\tline._scale = scale;\r\n\t\tline._datasetIndex = me.index;\r\n\t\t// Data\r\n\t\tline._children = points;\r\n\t\tline._loop = true;\r\n\t\t// Model\r\n\t\tline._model = me._resolveDatasetElementOptions(line);\r\n\r\n\t\tline.pivot();\r\n\r\n\t\t// Update Points\r\n\t\tfor (i = 0, ilen = points.length; i < ilen; ++i) {\r\n\t\t\tme.updateElement(points[i], i, reset);\r\n\t\t}\r\n\r\n\t\t// Update bezier control points\r\n\t\tme.updateBezierControlPoints();\r\n\r\n\t\t// Now pivot the point for animation\r\n\t\tfor (i = 0, ilen = points.length; i < ilen; ++i) {\r\n\t\t\tpoints[i].pivot();\r\n\t\t}\r\n\t},\r\n\r\n\tupdateElement: function(point, index, reset) {\r\n\t\tvar me = this;\r\n\t\tvar custom = point.custom || {};\r\n\t\tvar dataset = me.getDataset();\r\n\t\tvar scale = me.chart.scale;\r\n\t\tvar pointPosition = scale.getPointPositionForValue(index, dataset.data[index]);\r\n\t\tvar options = me._resolveDataElementOptions(point, index);\r\n\t\tvar lineModel = me.getMeta().dataset._model;\r\n\t\tvar x = reset ? scale.xCenter : pointPosition.x;\r\n\t\tvar y = reset ? scale.yCenter : pointPosition.y;\r\n\r\n\t\t// Utility\r\n\t\tpoint._scale = scale;\r\n\t\tpoint._options = options;\r\n\t\tpoint._datasetIndex = me.index;\r\n\t\tpoint._index = index;\r\n\r\n\t\t// Desired view properties\r\n\t\tpoint._model = {\r\n\t\t\tx: x, // value not used in dataset scale, but we want a consistent API between scales\r\n\t\t\ty: y,\r\n\t\t\tskip: custom.skip || isNaN(x) || isNaN(y),\r\n\t\t\t// Appearance\r\n\t\t\tradius: options.radius,\r\n\t\t\tpointStyle: options.pointStyle,\r\n\t\t\trotation: options.rotation,\r\n\t\t\tbackgroundColor: options.backgroundColor,\r\n\t\t\tborderColor: options.borderColor,\r\n\t\t\tborderWidth: options.borderWidth,\r\n\t\t\ttension: valueOrDefault$7(custom.tension, lineModel ? lineModel.tension : 0),\r\n\r\n\t\t\t// Tooltip\r\n\t\t\thitRadius: options.hitRadius\r\n\t\t};\r\n\t},\r\n\r\n\t/**\r\n\t * @private\r\n\t */\r\n\t_resolveDatasetElementOptions: function() {\r\n\t\tvar me = this;\r\n\t\tvar config = me._config;\r\n\t\tvar options = me.chart.options;\r\n\t\tvar values = core_datasetController.prototype._resolveDatasetElementOptions.apply(me, arguments);\r\n\r\n\t\tvalues.spanGaps = valueOrDefault$7(config.spanGaps, options.spanGaps);\r\n\t\tvalues.tension = valueOrDefault$7(config.lineTension, options.elements.line.tension);\r\n\r\n\t\treturn values;\r\n\t},\r\n\r\n\tupdateBezierControlPoints: function() {\r\n\t\tvar me = this;\r\n\t\tvar meta = me.getMeta();\r\n\t\tvar area = me.chart.chartArea;\r\n\t\tvar points = meta.data || [];\r\n\t\tvar i, ilen, model, controlPoints;\r\n\r\n\t\t// Only consider points that are drawn in case the spanGaps option is used\r\n\t\tif (meta.dataset._model.spanGaps) {\r\n\t\t\tpoints = points.filter(function(pt) {\r\n\t\t\t\treturn !pt._model.skip;\r\n\t\t\t});\r\n\t\t}\r\n\r\n\t\tfunction capControlPoint(pt, min, max) {\r\n\t\t\treturn Math.max(Math.min(pt, max), min);\r\n\t\t}\r\n\r\n\t\tfor (i = 0, ilen = points.length; i < ilen; ++i) {\r\n\t\t\tmodel = points[i]._model;\r\n\t\t\tcontrolPoints = helpers$1.splineCurve(\r\n\t\t\t\thelpers$1.previousItem(points, i, true)._model,\r\n\t\t\t\tmodel,\r\n\t\t\t\thelpers$1.nextItem(points, i, true)._model,\r\n\t\t\t\tmodel.tension\r\n\t\t\t);\r\n\r\n\t\t\t// Prevent the bezier going outside of the bounds of the graph\r\n\t\t\tmodel.controlPointPreviousX = capControlPoint(controlPoints.previous.x, area.left, area.right);\r\n\t\t\tmodel.controlPointPreviousY = capControlPoint(controlPoints.previous.y, area.top, area.bottom);\r\n\t\t\tmodel.controlPointNextX = capControlPoint(controlPoints.next.x, area.left, area.right);\r\n\t\t\tmodel.controlPointNextY = capControlPoint(controlPoints.next.y, area.top, area.bottom);\r\n\t\t}\r\n\t},\r\n\r\n\tsetHoverStyle: function(point) {\r\n\t\tvar model = point._model;\r\n\t\tvar options = point._options;\r\n\t\tvar getHoverColor = helpers$1.getHoverColor;\r\n\r\n\t\tpoint.$previousStyle = {\r\n\t\t\tbackgroundColor: model.backgroundColor,\r\n\t\t\tborderColor: model.borderColor,\r\n\t\t\tborderWidth: model.borderWidth,\r\n\t\t\tradius: model.radius\r\n\t\t};\r\n\r\n\t\tmodel.backgroundColor = valueOrDefault$7(options.hoverBackgroundColor, getHoverColor(options.backgroundColor));\r\n\t\tmodel.borderColor = valueOrDefault$7(options.hoverBorderColor, getHoverColor(options.borderColor));\r\n\t\tmodel.borderWidth = valueOrDefault$7(options.hoverBorderWidth, options.borderWidth);\r\n\t\tmodel.radius = valueOrDefault$7(options.hoverRadius, options.radius);\r\n\t}\r\n});\n\ncore_defaults._set('scatter', {\r\n\thover: {\r\n\t\tmode: 'single'\r\n\t},\r\n\r\n\tscales: {\r\n\t\txAxes: [{\r\n\t\t\tid: 'x-axis-1', // need an ID so datasets can reference the scale\r\n\t\t\ttype: 'linear', // scatter should not use a category axis\r\n\t\t\tposition: 'bottom'\r\n\t\t}],\r\n\t\tyAxes: [{\r\n\t\t\tid: 'y-axis-1',\r\n\t\t\ttype: 'linear',\r\n\t\t\tposition: 'left'\r\n\t\t}]\r\n\t},\r\n\r\n\ttooltips: {\r\n\t\tcallbacks: {\r\n\t\t\ttitle: function() {\r\n\t\t\t\treturn ''; // doesn't make sense for scatter since data are formatted as a point\r\n\t\t\t},\r\n\t\t\tlabel: function(item) {\r\n\t\t\t\treturn '(' + item.xLabel + ', ' + item.yLabel + ')';\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n});\r\n\r\ncore_defaults._set('global', {\r\n\tdatasets: {\r\n\t\tscatter: {\r\n\t\t\tshowLine: false\r\n\t\t}\r\n\t}\r\n});\r\n\r\n// Scatter charts use line controllers\r\nvar controller_scatter = controller_line;\n\n// NOTE export a map in which the key represents the controller type, not\r\n// the class, and so must be CamelCase in order to be correctly retrieved\r\n// by the controller in core.controller.js (`controllers[meta.type]`).\r\n\r\nvar controllers = {\r\n\tbar: controller_bar,\r\n\tbubble: controller_bubble,\r\n\tdoughnut: controller_doughnut,\r\n\thorizontalBar: controller_horizontalBar,\r\n\tline: controller_line,\r\n\tpolarArea: controller_polarArea,\r\n\tpie: controller_pie,\r\n\tradar: controller_radar,\r\n\tscatter: controller_scatter\r\n};\n\n/**\r\n * Helper function to get relative position for an event\r\n * @param {Event|IEvent} event - The event to get the position for\r\n * @param {Chart} chart - The chart\r\n * @returns {object} the event position\r\n */\r\nfunction getRelativePosition(e, chart) {\r\n\tif (e.native) {\r\n\t\treturn {\r\n\t\t\tx: e.x,\r\n\t\t\ty: e.y\r\n\t\t};\r\n\t}\r\n\r\n\treturn helpers$1.getRelativePosition(e, chart);\r\n}\r\n\r\n/**\r\n * Helper function to traverse all of the visible elements in the chart\r\n * @param {Chart} chart - the chart\r\n * @param {function} handler - the callback to execute for each visible item\r\n */\r\nfunction parseVisibleItems(chart, handler) {\r\n\tvar metasets = chart._getSortedVisibleDatasetMetas();\r\n\tvar metadata, i, j, ilen, jlen, element;\r\n\r\n\tfor (i = 0, ilen = metasets.length; i < ilen; ++i) {\r\n\t\tmetadata = metasets[i].data;\r\n\t\tfor (j = 0, jlen = metadata.length; j < jlen; ++j) {\r\n\t\t\telement = metadata[j];\r\n\t\t\tif (!element._view.skip) {\r\n\t\t\t\thandler(element);\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n}\r\n\r\n/**\r\n * Helper function to get the items that intersect the event position\r\n * @param {ChartElement[]} items - elements to filter\r\n * @param {object} position - the point to be nearest to\r\n * @return {ChartElement[]} the nearest items\r\n */\r\nfunction getIntersectItems(chart, position) {\r\n\tvar elements = [];\r\n\r\n\tparseVisibleItems(chart, function(element) {\r\n\t\tif (element.inRange(position.x, position.y)) {\r\n\t\t\telements.push(element);\r\n\t\t}\r\n\t});\r\n\r\n\treturn elements;\r\n}\r\n\r\n/**\r\n * Helper function to get the items nearest to the event position considering all visible items in teh chart\r\n * @param {Chart} chart - the chart to look at elements from\r\n * @param {object} position - the point to be nearest to\r\n * @param {boolean} intersect - if true, only consider items that intersect the position\r\n * @param {function} distanceMetric - function to provide the distance between points\r\n * @return {ChartElement[]} the nearest items\r\n */\r\nfunction getNearestItems(chart, position, intersect, distanceMetric) {\r\n\tvar minDistance = Number.POSITIVE_INFINITY;\r\n\tvar nearestItems = [];\r\n\r\n\tparseVisibleItems(chart, function(element) {\r\n\t\tif (intersect && !element.inRange(position.x, position.y)) {\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\tvar center = element.getCenterPoint();\r\n\t\tvar distance = distanceMetric(position, center);\r\n\t\tif (distance < minDistance) {\r\n\t\t\tnearestItems = [element];\r\n\t\t\tminDistance = distance;\r\n\t\t} else if (distance === minDistance) {\r\n\t\t\t// Can have multiple items at the same distance in which case we sort by size\r\n\t\t\tnearestItems.push(element);\r\n\t\t}\r\n\t});\r\n\r\n\treturn nearestItems;\r\n}\r\n\r\n/**\r\n * Get a distance metric function for two points based on the\r\n * axis mode setting\r\n * @param {string} axis - the axis mode. x|y|xy\r\n */\r\nfunction getDistanceMetricForAxis(axis) {\r\n\tvar useX = axis.indexOf('x') !== -1;\r\n\tvar useY = axis.indexOf('y') !== -1;\r\n\r\n\treturn function(pt1, pt2) {\r\n\t\tvar deltaX = useX ? Math.abs(pt1.x - pt2.x) : 0;\r\n\t\tvar deltaY = useY ? Math.abs(pt1.y - pt2.y) : 0;\r\n\t\treturn Math.sqrt(Math.pow(deltaX, 2) + Math.pow(deltaY, 2));\r\n\t};\r\n}\r\n\r\nfunction indexMode(chart, e, options) {\r\n\tvar position = getRelativePosition(e, chart);\r\n\t// Default axis for index mode is 'x' to match old behaviour\r\n\toptions.axis = options.axis || 'x';\r\n\tvar distanceMetric = getDistanceMetricForAxis(options.axis);\r\n\tvar items = options.intersect ? getIntersectItems(chart, position) : getNearestItems(chart, position, false, distanceMetric);\r\n\tvar elements = [];\r\n\r\n\tif (!items.length) {\r\n\t\treturn [];\r\n\t}\r\n\r\n\tchart._getSortedVisibleDatasetMetas().forEach(function(meta) {\r\n\t\tvar element = meta.data[items[0]._index];\r\n\r\n\t\t// don't count items that are skipped (null data)\r\n\t\tif (element && !element._view.skip) {\r\n\t\t\telements.push(element);\r\n\t\t}\r\n\t});\r\n\r\n\treturn elements;\r\n}\r\n\r\n/**\r\n * @interface IInteractionOptions\r\n */\r\n/**\r\n * If true, only consider items that intersect the point\r\n * @name IInterfaceOptions#boolean\r\n * @type Boolean\r\n */\r\n\r\n/**\r\n * Contains interaction related functions\r\n * @namespace Chart.Interaction\r\n */\r\nvar core_interaction = {\r\n\t// Helper function for different modes\r\n\tmodes: {\r\n\t\tsingle: function(chart, e) {\r\n\t\t\tvar position = getRelativePosition(e, chart);\r\n\t\t\tvar elements = [];\r\n\r\n\t\t\tparseVisibleItems(chart, function(element) {\r\n\t\t\t\tif (element.inRange(position.x, position.y)) {\r\n\t\t\t\t\telements.push(element);\r\n\t\t\t\t\treturn elements;\r\n\t\t\t\t}\r\n\t\t\t});\r\n\r\n\t\t\treturn elements.slice(0, 1);\r\n\t\t},\r\n\r\n\t\t/**\r\n\t\t * @function Chart.Interaction.modes.label\r\n\t\t * @deprecated since version 2.4.0\r\n\t\t * @todo remove at version 3\r\n\t\t * @private\r\n\t\t */\r\n\t\tlabel: indexMode,\r\n\r\n\t\t/**\r\n\t\t * Returns items at the same index. If the options.intersect parameter is true, we only return items if we intersect something\r\n\t\t * If the options.intersect mode is false, we find the nearest item and return the items at the same index as that item\r\n\t\t * @function Chart.Interaction.modes.index\r\n\t\t * @since v2.4.0\r\n\t\t * @param {Chart} chart - the chart we are returning items from\r\n\t\t * @param {Event} e - the event we are find things at\r\n\t\t * @param {IInteractionOptions} options - options to use during interaction\r\n\t\t * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned\r\n\t\t */\r\n\t\tindex: indexMode,\r\n\r\n\t\t/**\r\n\t\t * Returns items in the same dataset. If the options.intersect parameter is true, we only return items if we intersect something\r\n\t\t * If the options.intersect is false, we find the nearest item and return the items in that dataset\r\n\t\t * @function Chart.Interaction.modes.dataset\r\n\t\t * @param {Chart} chart - the chart we are returning items from\r\n\t\t * @param {Event} e - the event we are find things at\r\n\t\t * @param {IInteractionOptions} options - options to use during interaction\r\n\t\t * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned\r\n\t\t */\r\n\t\tdataset: function(chart, e, options) {\r\n\t\t\tvar position = getRelativePosition(e, chart);\r\n\t\t\toptions.axis = options.axis || 'xy';\r\n\t\t\tvar distanceMetric = getDistanceMetricForAxis(options.axis);\r\n\t\t\tvar items = options.intersect ? getIntersectItems(chart, position) : getNearestItems(chart, position, false, distanceMetric);\r\n\r\n\t\t\tif (items.length > 0) {\r\n\t\t\t\titems = chart.getDatasetMeta(items[0]._datasetIndex).data;\r\n\t\t\t}\r\n\r\n\t\t\treturn items;\r\n\t\t},\r\n\r\n\t\t/**\r\n\t\t * @function Chart.Interaction.modes.x-axis\r\n\t\t * @deprecated since version 2.4.0. Use index mode and intersect == true\r\n\t\t * @todo remove at version 3\r\n\t\t * @private\r\n\t\t */\r\n\t\t'x-axis': function(chart, e) {\r\n\t\t\treturn indexMode(chart, e, {intersect: false});\r\n\t\t},\r\n\r\n\t\t/**\r\n\t\t * Point mode returns all elements that hit test based on the event position\r\n\t\t * of the event\r\n\t\t * @function Chart.Interaction.modes.intersect\r\n\t\t * @param {Chart} chart - the chart we are returning items from\r\n\t\t * @param {Event} e - the event we are find things at\r\n\t\t * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned\r\n\t\t */\r\n\t\tpoint: function(chart, e) {\r\n\t\t\tvar position = getRelativePosition(e, chart);\r\n\t\t\treturn getIntersectItems(chart, position);\r\n\t\t},\r\n\r\n\t\t/**\r\n\t\t * nearest mode returns the element closest to the point\r\n\t\t * @function Chart.Interaction.modes.intersect\r\n\t\t * @param {Chart} chart - the chart we are returning items from\r\n\t\t * @param {Event} e - the event we are find things at\r\n\t\t * @param {IInteractionOptions} options - options to use\r\n\t\t * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned\r\n\t\t */\r\n\t\tnearest: function(chart, e, options) {\r\n\t\t\tvar position = getRelativePosition(e, chart);\r\n\t\t\toptions.axis = options.axis || 'xy';\r\n\t\t\tvar distanceMetric = getDistanceMetricForAxis(options.axis);\r\n\t\t\treturn getNearestItems(chart, position, options.intersect, distanceMetric);\r\n\t\t},\r\n\r\n\t\t/**\r\n\t\t * x mode returns the elements that hit-test at the current x coordinate\r\n\t\t * @function Chart.Interaction.modes.x\r\n\t\t * @param {Chart} chart - the chart we are returning items from\r\n\t\t * @param {Event} e - the event we are find things at\r\n\t\t * @param {IInteractionOptions} options - options to use\r\n\t\t * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned\r\n\t\t */\r\n\t\tx: function(chart, e, options) {\r\n\t\t\tvar position = getRelativePosition(e, chart);\r\n\t\t\tvar items = [];\r\n\t\t\tvar intersectsItem = false;\r\n\r\n\t\t\tparseVisibleItems(chart, function(element) {\r\n\t\t\t\tif (element.inXRange(position.x)) {\r\n\t\t\t\t\titems.push(element);\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif (element.inRange(position.x, position.y)) {\r\n\t\t\t\t\tintersectsItem = true;\r\n\t\t\t\t}\r\n\t\t\t});\r\n\r\n\t\t\t// If we want to trigger on an intersect and we don't have any items\r\n\t\t\t// that intersect the position, return nothing\r\n\t\t\tif (options.intersect && !intersectsItem) {\r\n\t\t\t\titems = [];\r\n\t\t\t}\r\n\t\t\treturn items;\r\n\t\t},\r\n\r\n\t\t/**\r\n\t\t * y mode returns the elements that hit-test at the current y coordinate\r\n\t\t * @function Chart.Interaction.modes.y\r\n\t\t * @param {Chart} chart - the chart we are returning items from\r\n\t\t * @param {Event} e - the event we are find things at\r\n\t\t * @param {IInteractionOptions} options - options to use\r\n\t\t * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned\r\n\t\t */\r\n\t\ty: function(chart, e, options) {\r\n\t\t\tvar position = getRelativePosition(e, chart);\r\n\t\t\tvar items = [];\r\n\t\t\tvar intersectsItem = false;\r\n\r\n\t\t\tparseVisibleItems(chart, function(element) {\r\n\t\t\t\tif (element.inYRange(position.y)) {\r\n\t\t\t\t\titems.push(element);\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif (element.inRange(position.x, position.y)) {\r\n\t\t\t\t\tintersectsItem = true;\r\n\t\t\t\t}\r\n\t\t\t});\r\n\r\n\t\t\t// If we want to trigger on an intersect and we don't have any items\r\n\t\t\t// that intersect the position, return nothing\r\n\t\t\tif (options.intersect && !intersectsItem) {\r\n\t\t\t\titems = [];\r\n\t\t\t}\r\n\t\t\treturn items;\r\n\t\t}\r\n\t}\r\n};\n\nvar extend = helpers$1.extend;\r\n\r\nfunction filterByPosition(array, position) {\r\n\treturn helpers$1.where(array, function(v) {\r\n\t\treturn v.pos === position;\r\n\t});\r\n}\r\n\r\nfunction sortByWeight(array, reverse) {\r\n\treturn array.sort(function(a, b) {\r\n\t\tvar v0 = reverse ? b : a;\r\n\t\tvar v1 = reverse ? a : b;\r\n\t\treturn v0.weight === v1.weight ?\r\n\t\t\tv0.index - v1.index :\r\n\t\t\tv0.weight - v1.weight;\r\n\t});\r\n}\r\n\r\nfunction wrapBoxes(boxes) {\r\n\tvar layoutBoxes = [];\r\n\tvar i, ilen, box;\r\n\r\n\tfor (i = 0, ilen = (boxes || []).length; i < ilen; ++i) {\r\n\t\tbox = boxes[i];\r\n\t\tlayoutBoxes.push({\r\n\t\t\tindex: i,\r\n\t\t\tbox: box,\r\n\t\t\tpos: box.position,\r\n\t\t\thorizontal: box.isHorizontal(),\r\n\t\t\tweight: box.weight\r\n\t\t});\r\n\t}\r\n\treturn layoutBoxes;\r\n}\r\n\r\nfunction setLayoutDims(layouts, params) {\r\n\tvar i, ilen, layout;\r\n\tfor (i = 0, ilen = layouts.length; i < ilen; ++i) {\r\n\t\tlayout = layouts[i];\r\n\t\t// store width used instead of chartArea.w in fitBoxes\r\n\t\tlayout.width = layout.horizontal\r\n\t\t\t? layout.box.fullWidth && params.availableWidth\r\n\t\t\t: params.vBoxMaxWidth;\r\n\t\t// store height used instead of chartArea.h in fitBoxes\r\n\t\tlayout.height = layout.horizontal && params.hBoxMaxHeight;\r\n\t}\r\n}\r\n\r\nfunction buildLayoutBoxes(boxes) {\r\n\tvar layoutBoxes = wrapBoxes(boxes);\r\n\tvar left = sortByWeight(filterByPosition(layoutBoxes, 'left'), true);\r\n\tvar right = sortByWeight(filterByPosition(layoutBoxes, 'right'));\r\n\tvar top = sortByWeight(filterByPosition(layoutBoxes, 'top'), true);\r\n\tvar bottom = sortByWeight(filterByPosition(layoutBoxes, 'bottom'));\r\n\r\n\treturn {\r\n\t\tleftAndTop: left.concat(top),\r\n\t\trightAndBottom: right.concat(bottom),\r\n\t\tchartArea: filterByPosition(layoutBoxes, 'chartArea'),\r\n\t\tvertical: left.concat(right),\r\n\t\thorizontal: top.concat(bottom)\r\n\t};\r\n}\r\n\r\nfunction getCombinedMax(maxPadding, chartArea, a, b) {\r\n\treturn Math.max(maxPadding[a], chartArea[a]) + Math.max(maxPadding[b], chartArea[b]);\r\n}\r\n\r\nfunction updateDims(chartArea, params, layout) {\r\n\tvar box = layout.box;\r\n\tvar maxPadding = chartArea.maxPadding;\r\n\tvar newWidth, newHeight;\r\n\r\n\tif (layout.size) {\r\n\t\t// this layout was already counted for, lets first reduce old size\r\n\t\tchartArea[layout.pos] -= layout.size;\r\n\t}\r\n\tlayout.size = layout.horizontal ? box.height : box.width;\r\n\tchartArea[layout.pos] += layout.size;\r\n\r\n\tif (box.getPadding) {\r\n\t\tvar boxPadding = box.getPadding();\r\n\t\tmaxPadding.top = Math.max(maxPadding.top, boxPadding.top);\r\n\t\tmaxPadding.left = Math.max(maxPadding.left, boxPadding.left);\r\n\t\tmaxPadding.bottom = Math.max(maxPadding.bottom, boxPadding.bottom);\r\n\t\tmaxPadding.right = Math.max(maxPadding.right, boxPadding.right);\r\n\t}\r\n\r\n\tnewWidth = params.outerWidth - getCombinedMax(maxPadding, chartArea, 'left', 'right');\r\n\tnewHeight = params.outerHeight - getCombinedMax(maxPadding, chartArea, 'top', 'bottom');\r\n\r\n\tif (newWidth !== chartArea.w || newHeight !== chartArea.h) {\r\n\t\tchartArea.w = newWidth;\r\n\t\tchartArea.h = newHeight;\r\n\r\n\t\t// return true if chart area changed in layout's direction\r\n\t\tvar sizes = layout.horizontal ? [newWidth, chartArea.w] : [newHeight, chartArea.h];\r\n\t\treturn sizes[0] !== sizes[1] && (!isNaN(sizes[0]) || !isNaN(sizes[1]));\r\n\t}\r\n}\r\n\r\nfunction handleMaxPadding(chartArea) {\r\n\tvar maxPadding = chartArea.maxPadding;\r\n\r\n\tfunction updatePos(pos) {\r\n\t\tvar change = Math.max(maxPadding[pos] - chartArea[pos], 0);\r\n\t\tchartArea[pos] += change;\r\n\t\treturn change;\r\n\t}\r\n\tchartArea.y += updatePos('top');\r\n\tchartArea.x += updatePos('left');\r\n\tupdatePos('right');\r\n\tupdatePos('bottom');\r\n}\r\n\r\nfunction getMargins(horizontal, chartArea) {\r\n\tvar maxPadding = chartArea.maxPadding;\r\n\r\n\tfunction marginForPositions(positions) {\r\n\t\tvar margin = {left: 0, top: 0, right: 0, bottom: 0};\r\n\t\tpositions.forEach(function(pos) {\r\n\t\t\tmargin[pos] = Math.max(chartArea[pos], maxPadding[pos]);\r\n\t\t});\r\n\t\treturn margin;\r\n\t}\r\n\r\n\treturn horizontal\r\n\t\t? marginForPositions(['left', 'right'])\r\n\t\t: marginForPositions(['top', 'bottom']);\r\n}\r\n\r\nfunction fitBoxes(boxes, chartArea, params) {\r\n\tvar refitBoxes = [];\r\n\tvar i, ilen, layout, box, refit, changed;\r\n\r\n\tfor (i = 0, ilen = boxes.length; i < ilen; ++i) {\r\n\t\tlayout = boxes[i];\r\n\t\tbox = layout.box;\r\n\r\n\t\tbox.update(\r\n\t\t\tlayout.width || chartArea.w,\r\n\t\t\tlayout.height || chartArea.h,\r\n\t\t\tgetMargins(layout.horizontal, chartArea)\r\n\t\t);\r\n\t\tif (updateDims(chartArea, params, layout)) {\r\n\t\t\tchanged = true;\r\n\t\t\tif (refitBoxes.length) {\r\n\t\t\t\t// Dimensions changed and there were non full width boxes before this\r\n\t\t\t\t// -> we have to refit those\r\n\t\t\t\trefit = true;\r\n\t\t\t}\r\n\t\t}\r\n\t\tif (!box.fullWidth) { // fullWidth boxes don't need to be re-fitted in any case\r\n\t\t\trefitBoxes.push(layout);\r\n\t\t}\r\n\t}\r\n\r\n\treturn refit ? fitBoxes(refitBoxes, chartArea, params) || changed : changed;\r\n}\r\n\r\nfunction placeBoxes(boxes, chartArea, params) {\r\n\tvar userPadding = params.padding;\r\n\tvar x = chartArea.x;\r\n\tvar y = chartArea.y;\r\n\tvar i, ilen, layout, box;\r\n\r\n\tfor (i = 0, ilen = boxes.length; i < ilen; ++i) {\r\n\t\tlayout = boxes[i];\r\n\t\tbox = layout.box;\r\n\t\tif (layout.horizontal) {\r\n\t\t\tbox.left = box.fullWidth ? userPadding.left : chartArea.left;\r\n\t\t\tbox.right = box.fullWidth ? params.outerWidth - userPadding.right : chartArea.left + chartArea.w;\r\n\t\t\tbox.top = y;\r\n\t\t\tbox.bottom = y + box.height;\r\n\t\t\tbox.width = box.right - box.left;\r\n\t\t\ty = box.bottom;\r\n\t\t} else {\r\n\t\t\tbox.left = x;\r\n\t\t\tbox.right = x + box.width;\r\n\t\t\tbox.top = chartArea.top;\r\n\t\t\tbox.bottom = chartArea.top + chartArea.h;\r\n\t\t\tbox.height = box.bottom - box.top;\r\n\t\t\tx = box.right;\r\n\t\t}\r\n\t}\r\n\r\n\tchartArea.x = x;\r\n\tchartArea.y = y;\r\n}\r\n\r\ncore_defaults._set('global', {\r\n\tlayout: {\r\n\t\tpadding: {\r\n\t\t\ttop: 0,\r\n\t\t\tright: 0,\r\n\t\t\tbottom: 0,\r\n\t\t\tleft: 0\r\n\t\t}\r\n\t}\r\n});\r\n\r\n/**\r\n * @interface ILayoutItem\r\n * @prop {string} position - The position of the item in the chart layout. Possible values are\r\n * 'left', 'top', 'right', 'bottom', and 'chartArea'\r\n * @prop {number} weight - The weight used to sort the item. Higher weights are further away from the chart area\r\n * @prop {boolean} fullWidth - if true, and the item is horizontal, then push vertical boxes down\r\n * @prop {function} isHorizontal - returns true if the layout item is horizontal (ie. top or bottom)\r\n * @prop {function} update - Takes two parameters: width and height. Returns size of item\r\n * @prop {function} getPadding - Returns an object with padding on the edges\r\n * @prop {number} width - Width of item. Must be valid after update()\r\n * @prop {number} height - Height of item. Must be valid after update()\r\n * @prop {number} left - Left edge of the item. Set by layout system and cannot be used in update\r\n * @prop {number} top - Top edge of the item. Set by layout system and cannot be used in update\r\n * @prop {number} right - Right edge of the item. Set by layout system and cannot be used in update\r\n * @prop {number} bottom - Bottom edge of the item. Set by layout system and cannot be used in update\r\n */\r\n\r\n// The layout service is very self explanatory. It's responsible for the layout within a chart.\r\n// Scales, Legends and Plugins all rely on the layout service and can easily register to be placed anywhere they need\r\n// It is this service's responsibility of carrying out that layout.\r\nvar core_layouts = {\r\n\tdefaults: {},\r\n\r\n\t/**\r\n\t * Register a box to a chart.\r\n\t * A box is simply a reference to an object that requires layout. eg. Scales, Legend, Title.\r\n\t * @param {Chart} chart - the chart to use\r\n\t * @param {ILayoutItem} item - the item to add to be layed out\r\n\t */\r\n\taddBox: function(chart, item) {\r\n\t\tif (!chart.boxes) {\r\n\t\t\tchart.boxes = [];\r\n\t\t}\r\n\r\n\t\t// initialize item with default values\r\n\t\titem.fullWidth = item.fullWidth || false;\r\n\t\titem.position = item.position || 'top';\r\n\t\titem.weight = item.weight || 0;\r\n\t\titem._layers = item._layers || function() {\r\n\t\t\treturn [{\r\n\t\t\t\tz: 0,\r\n\t\t\t\tdraw: function() {\r\n\t\t\t\t\titem.draw.apply(item, arguments);\r\n\t\t\t\t}\r\n\t\t\t}];\r\n\t\t};\r\n\r\n\t\tchart.boxes.push(item);\r\n\t},\r\n\r\n\t/**\r\n\t * Remove a layoutItem from a chart\r\n\t * @param {Chart} chart - the chart to remove the box from\r\n\t * @param {ILayoutItem} layoutItem - the item to remove from the layout\r\n\t */\r\n\tremoveBox: function(chart, layoutItem) {\r\n\t\tvar index = chart.boxes ? chart.boxes.indexOf(layoutItem) : -1;\r\n\t\tif (index !== -1) {\r\n\t\t\tchart.boxes.splice(index, 1);\r\n\t\t}\r\n\t},\r\n\r\n\t/**\r\n\t * Sets (or updates) options on the given `item`.\r\n\t * @param {Chart} chart - the chart in which the item lives (or will be added to)\r\n\t * @param {ILayoutItem} item - the item to configure with the given options\r\n\t * @param {object} options - the new item options.\r\n\t */\r\n\tconfigure: function(chart, item, options) {\r\n\t\tvar props = ['fullWidth', 'position', 'weight'];\r\n\t\tvar ilen = props.length;\r\n\t\tvar i = 0;\r\n\t\tvar prop;\r\n\r\n\t\tfor (; i < ilen; ++i) {\r\n\t\t\tprop = props[i];\r\n\t\t\tif (options.hasOwnProperty(prop)) {\r\n\t\t\t\titem[prop] = options[prop];\r\n\t\t\t}\r\n\t\t}\r\n\t},\r\n\r\n\t/**\r\n\t * Fits boxes of the given chart into the given size by having each box measure itself\r\n\t * then running a fitting algorithm\r\n\t * @param {Chart} chart - the chart\r\n\t * @param {number} width - the width to fit into\r\n\t * @param {number} height - the height to fit into\r\n\t */\r\n\tupdate: function(chart, width, height) {\r\n\t\tif (!chart) {\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\tvar layoutOptions = chart.options.layout || {};\r\n\t\tvar padding = helpers$1.options.toPadding(layoutOptions.padding);\r\n\r\n\t\tvar availableWidth = width - padding.width;\r\n\t\tvar availableHeight = height - padding.height;\r\n\t\tvar boxes = buildLayoutBoxes(chart.boxes);\r\n\t\tvar verticalBoxes = boxes.vertical;\r\n\t\tvar horizontalBoxes = boxes.horizontal;\r\n\r\n\t\t// Essentially we now have any number of boxes on each of the 4 sides.\r\n\t\t// Our canvas looks like the following.\r\n\t\t// The areas L1 and L2 are the left axes. R1 is the right axis, T1 is the top axis and\r\n\t\t// B1 is the bottom axis\r\n\t\t// There are also 4 quadrant-like locations (left to right instead of clockwise) reserved for chart overlays\r\n\t\t// These locations are single-box locations only, when trying to register a chartArea location that is already taken,\r\n\t\t// an error will be thrown.\r\n\t\t//\r\n\t\t// |----------------------------------------------------|\r\n\t\t// | T1 (Full Width) |\r\n\t\t// |----------------------------------------------------|\r\n\t\t// | | | T2 | |\r\n\t\t// | |----|-------------------------------------|----|\r\n\t\t// | | | C1 | | C2 | |\r\n\t\t// | | |----| |----| |\r\n\t\t// | | | | |\r\n\t\t// | L1 | L2 | ChartArea (C0) | R1 |\r\n\t\t// | | | | |\r\n\t\t// | | |----| |----| |\r\n\t\t// | | | C3 | | C4 | |\r\n\t\t// | |----|-------------------------------------|----|\r\n\t\t// | | | B1 | |\r\n\t\t// |----------------------------------------------------|\r\n\t\t// | B2 (Full Width) |\r\n\t\t// |----------------------------------------------------|\r\n\t\t//\r\n\r\n\t\tvar params = Object.freeze({\r\n\t\t\touterWidth: width,\r\n\t\t\touterHeight: height,\r\n\t\t\tpadding: padding,\r\n\t\t\tavailableWidth: availableWidth,\r\n\t\t\tvBoxMaxWidth: availableWidth / 2 / verticalBoxes.length,\r\n\t\t\thBoxMaxHeight: availableHeight / 2\r\n\t\t});\r\n\t\tvar chartArea = extend({\r\n\t\t\tmaxPadding: extend({}, padding),\r\n\t\t\tw: availableWidth,\r\n\t\t\th: availableHeight,\r\n\t\t\tx: padding.left,\r\n\t\t\ty: padding.top\r\n\t\t}, padding);\r\n\r\n\t\tsetLayoutDims(verticalBoxes.concat(horizontalBoxes), params);\r\n\r\n\t\t// First fit vertical boxes\r\n\t\tfitBoxes(verticalBoxes, chartArea, params);\r\n\r\n\t\t// Then fit horizontal boxes\r\n\t\tif (fitBoxes(horizontalBoxes, chartArea, params)) {\r\n\t\t\t// if the area changed, re-fit vertical boxes\r\n\t\t\tfitBoxes(verticalBoxes, chartArea, params);\r\n\t\t}\r\n\r\n\t\thandleMaxPadding(chartArea);\r\n\r\n\t\t// Finally place the boxes to correct coordinates\r\n\t\tplaceBoxes(boxes.leftAndTop, chartArea, params);\r\n\r\n\t\t// Move to opposite side of chart\r\n\t\tchartArea.x += chartArea.w;\r\n\t\tchartArea.y += chartArea.h;\r\n\r\n\t\tplaceBoxes(boxes.rightAndBottom, chartArea, params);\r\n\r\n\t\tchart.chartArea = {\r\n\t\t\tleft: chartArea.left,\r\n\t\t\ttop: chartArea.top,\r\n\t\t\tright: chartArea.left + chartArea.w,\r\n\t\t\tbottom: chartArea.top + chartArea.h\r\n\t\t};\r\n\r\n\t\t// Finally update boxes in chartArea (radial scale for example)\r\n\t\thelpers$1.each(boxes.chartArea, function(layout) {\r\n\t\t\tvar box = layout.box;\r\n\t\t\textend(box, chart.chartArea);\r\n\t\t\tbox.update(chartArea.w, chartArea.h);\r\n\t\t});\r\n\t}\r\n};\n\n/**\r\n * Platform fallback implementation (minimal).\r\n * @see https://github.com/chartjs/Chart.js/pull/4591#issuecomment-319575939\r\n */\r\n\r\nvar platform_basic = {\r\n\tacquireContext: function(item) {\r\n\t\tif (item && item.canvas) {\r\n\t\t\t// Support for any object associated to a canvas (including a context2d)\r\n\t\t\titem = item.canvas;\r\n\t\t}\r\n\r\n\t\treturn item && item.getContext('2d') || null;\r\n\t}\r\n};\n\nvar platform_dom = \"/*\\r\\n * DOM element rendering detection\\r\\n * https://davidwalsh.name/detect-node-insertion\\r\\n */\\r\\n@keyframes chartjs-render-animation {\\r\\n\\tfrom { opacity: 0.99; }\\r\\n\\tto { opacity: 1; }\\r\\n}\\r\\n\\r\\n.chartjs-render-monitor {\\r\\n\\tanimation: chartjs-render-animation 0.001s;\\r\\n}\\r\\n\\r\\n/*\\r\\n * DOM element resizing detection\\r\\n * https://github.com/marcj/css-element-queries\\r\\n */\\r\\n.chartjs-size-monitor,\\r\\n.chartjs-size-monitor-expand,\\r\\n.chartjs-size-monitor-shrink {\\r\\n\\tposition: absolute;\\r\\n\\tdirection: ltr;\\r\\n\\tleft: 0;\\r\\n\\ttop: 0;\\r\\n\\tright: 0;\\r\\n\\tbottom: 0;\\r\\n\\toverflow: hidden;\\r\\n\\tpointer-events: none;\\r\\n\\tvisibility: hidden;\\r\\n\\tz-index: -1;\\r\\n}\\r\\n\\r\\n.chartjs-size-monitor-expand > div {\\r\\n\\tposition: absolute;\\r\\n\\twidth: 1000000px;\\r\\n\\theight: 1000000px;\\r\\n\\tleft: 0;\\r\\n\\ttop: 0;\\r\\n}\\r\\n\\r\\n.chartjs-size-monitor-shrink > div {\\r\\n\\tposition: absolute;\\r\\n\\twidth: 200%;\\r\\n\\theight: 200%;\\r\\n\\tleft: 0;\\r\\n\\ttop: 0;\\r\\n}\\r\\n\";\n\nvar platform_dom$1 = /*#__PURE__*/Object.freeze({\n__proto__: null,\n'default': platform_dom\n});\n\nvar stylesheet = getCjsExportFromNamespace(platform_dom$1);\n\nvar EXPANDO_KEY = '$chartjs';\r\nvar CSS_PREFIX = 'chartjs-';\r\nvar CSS_SIZE_MONITOR = CSS_PREFIX + 'size-monitor';\r\nvar CSS_RENDER_MONITOR = CSS_PREFIX + 'render-monitor';\r\nvar CSS_RENDER_ANIMATION = CSS_PREFIX + 'render-animation';\r\nvar ANIMATION_START_EVENTS = ['animationstart', 'webkitAnimationStart'];\r\n\r\n/**\r\n * DOM event types -> Chart.js event types.\r\n * Note: only events with different types are mapped.\r\n * @see https://developer.mozilla.org/en-US/docs/Web/Events\r\n */\r\nvar EVENT_TYPES = {\r\n\ttouchstart: 'mousedown',\r\n\ttouchmove: 'mousemove',\r\n\ttouchend: 'mouseup',\r\n\tpointerenter: 'mouseenter',\r\n\tpointerdown: 'mousedown',\r\n\tpointermove: 'mousemove',\r\n\tpointerup: 'mouseup',\r\n\tpointerleave: 'mouseout',\r\n\tpointerout: 'mouseout'\r\n};\r\n\r\n/**\r\n * The \"used\" size is the final value of a dimension property after all calculations have\r\n * been performed. This method uses the computed style of `element` but returns undefined\r\n * if the computed style is not expressed in pixels. That can happen in some cases where\r\n * `element` has a size relative to its parent and this last one is not yet displayed,\r\n * for example because of `display: none` on a parent node.\r\n * @see https://developer.mozilla.org/en-US/docs/Web/CSS/used_value\r\n * @returns {number} Size in pixels or undefined if unknown.\r\n */\r\nfunction readUsedSize(element, property) {\r\n\tvar value = helpers$1.getStyle(element, property);\r\n\tvar matches = value && value.match(/^(\\d+)(\\.\\d+)?px$/);\r\n\treturn matches ? Number(matches[1]) : undefined;\r\n}\r\n\r\n/**\r\n * Initializes the canvas style and render size without modifying the canvas display size,\r\n * since responsiveness is handled by the controller.resize() method. The config is used\r\n * to determine the aspect ratio to apply in case no explicit height has been specified.\r\n */\r\nfunction initCanvas(canvas, config) {\r\n\tvar style = canvas.style;\r\n\r\n\t// NOTE(SB) canvas.getAttribute('width') !== canvas.width: in the first case it\r\n\t// returns null or '' if no explicit value has been set to the canvas attribute.\r\n\tvar renderHeight = canvas.getAttribute('height');\r\n\tvar renderWidth = canvas.getAttribute('width');\r\n\r\n\t// Chart.js modifies some canvas values that we want to restore on destroy\r\n\tcanvas[EXPANDO_KEY] = {\r\n\t\tinitial: {\r\n\t\t\theight: renderHeight,\r\n\t\t\twidth: renderWidth,\r\n\t\t\tstyle: {\r\n\t\t\t\tdisplay: style.display,\r\n\t\t\t\theight: style.height,\r\n\t\t\t\twidth: style.width\r\n\t\t\t}\r\n\t\t}\r\n\t};\r\n\r\n\t// Force canvas to display as block to avoid extra space caused by inline\r\n\t// elements, which would interfere with the responsive resize process.\r\n\t// https://github.com/chartjs/Chart.js/issues/2538\r\n\tstyle.display = style.display || 'block';\r\n\r\n\tif (renderWidth === null || renderWidth === '') {\r\n\t\tvar displayWidth = readUsedSize(canvas, 'width');\r\n\t\tif (displayWidth !== undefined) {\r\n\t\t\tcanvas.width = displayWidth;\r\n\t\t}\r\n\t}\r\n\r\n\tif (renderHeight === null || renderHeight === '') {\r\n\t\tif (canvas.style.height === '') {\r\n\t\t\t// If no explicit render height and style height, let's apply the aspect ratio,\r\n\t\t\t// which one can be specified by the user but also by charts as default option\r\n\t\t\t// (i.e. options.aspectRatio). If not specified, use canvas aspect ratio of 2.\r\n\t\t\tcanvas.height = canvas.width / (config.options.aspectRatio || 2);\r\n\t\t} else {\r\n\t\t\tvar displayHeight = readUsedSize(canvas, 'height');\r\n\t\t\tif (displayWidth !== undefined) {\r\n\t\t\t\tcanvas.height = displayHeight;\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n\r\n\treturn canvas;\r\n}\r\n\r\n/**\r\n * Detects support for options object argument in addEventListener.\r\n * https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#Safely_detecting_option_support\r\n * @private\r\n */\r\nvar supportsEventListenerOptions = (function() {\r\n\tvar supports = false;\r\n\ttry {\r\n\t\tvar options = Object.defineProperty({}, 'passive', {\r\n\t\t\t// eslint-disable-next-line getter-return\r\n\t\t\tget: function() {\r\n\t\t\t\tsupports = true;\r\n\t\t\t}\r\n\t\t});\r\n\t\twindow.addEventListener('e', null, options);\r\n\t} catch (e) {\r\n\t\t// continue regardless of error\r\n\t}\r\n\treturn supports;\r\n}());\r\n\r\n// Default passive to true as expected by Chrome for 'touchstart' and 'touchend' events.\r\n// https://github.com/chartjs/Chart.js/issues/4287\r\nvar eventListenerOptions = supportsEventListenerOptions ? {passive: true} : false;\r\n\r\nfunction addListener(node, type, listener) {\r\n\tnode.addEventListener(type, listener, eventListenerOptions);\r\n}\r\n\r\nfunction removeListener(node, type, listener) {\r\n\tnode.removeEventListener(type, listener, eventListenerOptions);\r\n}\r\n\r\nfunction createEvent(type, chart, x, y, nativeEvent) {\r\n\treturn {\r\n\t\ttype: type,\r\n\t\tchart: chart,\r\n\t\tnative: nativeEvent || null,\r\n\t\tx: x !== undefined ? x : null,\r\n\t\ty: y !== undefined ? y : null,\r\n\t};\r\n}\r\n\r\nfunction fromNativeEvent(event, chart) {\r\n\tvar type = EVENT_TYPES[event.type] || event.type;\r\n\tvar pos = helpers$1.getRelativePosition(event, chart);\r\n\treturn createEvent(type, chart, pos.x, pos.y, event);\r\n}\r\n\r\nfunction throttled(fn, thisArg) {\r\n\tvar ticking = false;\r\n\tvar args = [];\r\n\r\n\treturn function() {\r\n\t\targs = Array.prototype.slice.call(arguments);\r\n\t\tthisArg = thisArg || this;\r\n\r\n\t\tif (!ticking) {\r\n\t\t\tticking = true;\r\n\t\t\thelpers$1.requestAnimFrame.call(window, function() {\r\n\t\t\t\tticking = false;\r\n\t\t\t\tfn.apply(thisArg, args);\r\n\t\t\t});\r\n\t\t}\r\n\t};\r\n}\r\n\r\nfunction createDiv(cls) {\r\n\tvar el = document.createElement('div');\r\n\tel.className = cls || '';\r\n\treturn el;\r\n}\r\n\r\n// Implementation based on https://github.com/marcj/css-element-queries\r\nfunction createResizer(handler) {\r\n\tvar maxSize = 1000000;\r\n\r\n\t// NOTE(SB) Don't use innerHTML because it could be considered unsafe.\r\n\t// https://github.com/chartjs/Chart.js/issues/5902\r\n\tvar resizer = createDiv(CSS_SIZE_MONITOR);\r\n\tvar expand = createDiv(CSS_SIZE_MONITOR + '-expand');\r\n\tvar shrink = createDiv(CSS_SIZE_MONITOR + '-shrink');\r\n\r\n\texpand.appendChild(createDiv());\r\n\tshrink.appendChild(createDiv());\r\n\r\n\tresizer.appendChild(expand);\r\n\tresizer.appendChild(shrink);\r\n\tresizer._reset = function() {\r\n\t\texpand.scrollLeft = maxSize;\r\n\t\texpand.scrollTop = maxSize;\r\n\t\tshrink.scrollLeft = maxSize;\r\n\t\tshrink.scrollTop = maxSize;\r\n\t};\r\n\r\n\tvar onScroll = function() {\r\n\t\tresizer._reset();\r\n\t\thandler();\r\n\t};\r\n\r\n\taddListener(expand, 'scroll', onScroll.bind(expand, 'expand'));\r\n\taddListener(shrink, 'scroll', onScroll.bind(shrink, 'shrink'));\r\n\r\n\treturn resizer;\r\n}\r\n\r\n// https://davidwalsh.name/detect-node-insertion\r\nfunction watchForRender(node, handler) {\r\n\tvar expando = node[EXPANDO_KEY] || (node[EXPANDO_KEY] = {});\r\n\tvar proxy = expando.renderProxy = function(e) {\r\n\t\tif (e.animationName === CSS_RENDER_ANIMATION) {\r\n\t\t\thandler();\r\n\t\t}\r\n\t};\r\n\r\n\thelpers$1.each(ANIMATION_START_EVENTS, function(type) {\r\n\t\taddListener(node, type, proxy);\r\n\t});\r\n\r\n\t// #4737: Chrome might skip the CSS animation when the CSS_RENDER_MONITOR class\r\n\t// is removed then added back immediately (same animation frame?). Accessing the\r\n\t// `offsetParent` property will force a reflow and re-evaluate the CSS animation.\r\n\t// https://gist.github.com/paulirish/5d52fb081b3570c81e3a#box-metrics\r\n\t// https://github.com/chartjs/Chart.js/issues/4737\r\n\texpando.reflow = !!node.offsetParent;\r\n\r\n\tnode.classList.add(CSS_RENDER_MONITOR);\r\n}\r\n\r\nfunction unwatchForRender(node) {\r\n\tvar expando = node[EXPANDO_KEY] || {};\r\n\tvar proxy = expando.renderProxy;\r\n\r\n\tif (proxy) {\r\n\t\thelpers$1.each(ANIMATION_START_EVENTS, function(type) {\r\n\t\t\tremoveListener(node, type, proxy);\r\n\t\t});\r\n\r\n\t\tdelete expando.renderProxy;\r\n\t}\r\n\r\n\tnode.classList.remove(CSS_RENDER_MONITOR);\r\n}\r\n\r\nfunction addResizeListener(node, listener, chart) {\r\n\tvar expando = node[EXPANDO_KEY] || (node[EXPANDO_KEY] = {});\r\n\r\n\t// Let's keep track of this added resizer and thus avoid DOM query when removing it.\r\n\tvar resizer = expando.resizer = createResizer(throttled(function() {\r\n\t\tif (expando.resizer) {\r\n\t\t\tvar container = chart.options.maintainAspectRatio && node.parentNode;\r\n\t\t\tvar w = container ? container.clientWidth : 0;\r\n\t\t\tlistener(createEvent('resize', chart));\r\n\t\t\tif (container && container.clientWidth < w && chart.canvas) {\r\n\t\t\t\t// If the container size shrank during chart resize, let's assume\r\n\t\t\t\t// scrollbar appeared. So we resize again with the scrollbar visible -\r\n\t\t\t\t// effectively making chart smaller and the scrollbar hidden again.\r\n\t\t\t\t// Because we are inside `throttled`, and currently `ticking`, scroll\r\n\t\t\t\t// events are ignored during this whole 2 resize process.\r\n\t\t\t\t// If we assumed wrong and something else happened, we are resizing\r\n\t\t\t\t// twice in a frame (potential performance issue)\r\n\t\t\t\tlistener(createEvent('resize', chart));\r\n\t\t\t}\r\n\t\t}\r\n\t}));\r\n\r\n\t// The resizer needs to be attached to the node parent, so we first need to be\r\n\t// sure that `node` is attached to the DOM before injecting the resizer element.\r\n\twatchForRender(node, function() {\r\n\t\tif (expando.resizer) {\r\n\t\t\tvar container = node.parentNode;\r\n\t\t\tif (container && container !== resizer.parentNode) {\r\n\t\t\t\tcontainer.insertBefore(resizer, container.firstChild);\r\n\t\t\t}\r\n\r\n\t\t\t// The container size might have changed, let's reset the resizer state.\r\n\t\t\tresizer._reset();\r\n\t\t}\r\n\t});\r\n}\r\n\r\nfunction removeResizeListener(node) {\r\n\tvar expando = node[EXPANDO_KEY] || {};\r\n\tvar resizer = expando.resizer;\r\n\r\n\tdelete expando.resizer;\r\n\tunwatchForRender(node);\r\n\r\n\tif (resizer && resizer.parentNode) {\r\n\t\tresizer.parentNode.removeChild(resizer);\r\n\t}\r\n}\r\n\r\n/**\r\n * Injects CSS styles inline if the styles are not already present.\r\n * @param {HTMLDocument|ShadowRoot} rootNode - the node to contain the \n
\n\n could become:\n\n \n
\n \n
\n\n Note the use of @polyfill in the comment above a ShadowDOM specific style\n declaration. This is a directive to the styling shim to use the selector\n in comments in lieu of the next selector when running under polyfill.\n*/\nclass ShadowCss {\n constructor() {\n /**\n * Regular expression used to extrapolate the possible keyframes from an\n * animation declaration (with possibly multiple animation definitions)\n *\n * The regular expression can be divided in three parts\n * - (^|\\s+)\n * simply captures how many (if any) leading whitespaces are present\n * - (?:(?:(['\"])((?:\\\\\\\\|\\\\\\2|(?!\\2).)+)\\2)|(-?[A-Za-z][\\w\\-]*))\n * captures two different possible keyframes, ones which are quoted or ones which are valid css\n * idents (custom properties excluded)\n * - (?=[,\\s;]|$)\n * simply matches the end of the possible keyframe, valid endings are: a comma, a space, a\n * semicolon or the end of the string\n */\n this._animationDeclarationKeyframesRe = /(^|\\s+)(?:(?:(['\"])((?:\\\\\\\\|\\\\\\2|(?!\\2).)+)\\2)|(-?[A-Za-z][\\w\\-]*))(?=[,\\s]|$)/g;\n }\n /*\n * Shim some cssText with the given selector. Returns cssText that can be included in the document\n *\n * The selector is the attribute added to all elements inside the host,\n * The hostSelector is the attribute added to the host itself.\n */\n shimCssText(cssText, selector, hostSelector = '') {\n const commentsWithHash = extractCommentsWithHash(cssText);\n cssText = stripComments(cssText);\n cssText = this._insertDirectives(cssText);\n const scopedCssText = this._scopeCssText(cssText, selector, hostSelector);\n return [scopedCssText, ...commentsWithHash].join('\\n');\n }\n _insertDirectives(cssText) {\n cssText = this._insertPolyfillDirectivesInCssText(cssText);\n return this._insertPolyfillRulesInCssText(cssText);\n }\n /**\n * Process styles to add scope to keyframes.\n *\n * Modify both the names of the keyframes defined in the component styles and also the css\n * animation rules using them.\n *\n * Animation rules using keyframes defined elsewhere are not modified to allow for globally\n * defined keyframes.\n *\n * For example, we convert this css:\n *\n * ```\n * .box {\n * animation: box-animation 1s forwards;\n * }\n *\n * @keyframes box-animation {\n * to {\n * background-color: green;\n * }\n * }\n * ```\n *\n * to this:\n *\n * ```\n * .box {\n * animation: scopeName_box-animation 1s forwards;\n * }\n *\n * @keyframes scopeName_box-animation {\n * to {\n * background-color: green;\n * }\n * }\n * ```\n *\n * @param cssText the component's css text that needs to be scoped.\n * @param scopeSelector the component's scope selector.\n *\n * @returns the scoped css text.\n */\n _scopeKeyframesRelatedCss(cssText, scopeSelector) {\n const unscopedKeyframesSet = new Set();\n const scopedKeyframesCssText = processRules(cssText, rule => this._scopeLocalKeyframeDeclarations(rule, scopeSelector, unscopedKeyframesSet));\n return processRules(scopedKeyframesCssText, rule => this._scopeAnimationRule(rule, scopeSelector, unscopedKeyframesSet));\n }\n /**\n * Scopes local keyframes names, returning the updated css rule and it also\n * adds the original keyframe name to a provided set to collect all keyframes names\n * so that it can later be used to scope the animation rules.\n *\n * For example, it takes a rule such as:\n *\n * ```\n * @keyframes box-animation {\n * to {\n * background-color: green;\n * }\n * }\n * ```\n *\n * and returns:\n *\n * ```\n * @keyframes scopeName_box-animation {\n * to {\n * background-color: green;\n * }\n * }\n * ```\n * and as a side effect it adds \"box-animation\" to the `unscopedKeyframesSet` set\n *\n * @param cssRule the css rule to process.\n * @param scopeSelector the component's scope selector.\n * @param unscopedKeyframesSet the set of unscoped keyframes names (which can be\n * modified as a side effect)\n *\n * @returns the css rule modified with the scoped keyframes name.\n */\n _scopeLocalKeyframeDeclarations(rule, scopeSelector, unscopedKeyframesSet) {\n return {\n ...rule,\n selector: rule.selector.replace(/(^@(?:-webkit-)?keyframes(?:\\s+))(['\"]?)(.+)\\2(\\s*)$/, (_, start, quote, keyframeName, endSpaces) => {\n unscopedKeyframesSet.add(unescapeQuotes(keyframeName, quote));\n return `${start}${quote}${scopeSelector}_${keyframeName}${quote}${endSpaces}`;\n }),\n };\n }\n /**\n * Function used to scope a keyframes name (obtained from an animation declaration)\n * using an existing set of unscopedKeyframes names to discern if the scoping needs to be\n * performed (keyframes names of keyframes not defined in the component's css need not to be\n * scoped).\n *\n * @param keyframe the keyframes name to check.\n * @param scopeSelector the component's scope selector.\n * @param unscopedKeyframesSet the set of unscoped keyframes names.\n *\n * @returns the scoped name of the keyframe, or the original name is the name need not to be\n * scoped.\n */\n _scopeAnimationKeyframe(keyframe, scopeSelector, unscopedKeyframesSet) {\n return keyframe.replace(/^(\\s*)(['\"]?)(.+?)\\2(\\s*)$/, (_, spaces1, quote, name, spaces2) => {\n name = `${unscopedKeyframesSet.has(unescapeQuotes(name, quote)) ? scopeSelector + '_' : ''}${name}`;\n return `${spaces1}${quote}${name}${quote}${spaces2}`;\n });\n }\n /**\n * Scope an animation rule so that the keyframes mentioned in such rule\n * are scoped if defined in the component's css and left untouched otherwise.\n *\n * It can scope values of both the 'animation' and 'animation-name' properties.\n *\n * @param rule css rule to scope.\n * @param scopeSelector the component's scope selector.\n * @param unscopedKeyframesSet the set of unscoped keyframes names.\n *\n * @returns the updated css rule.\n **/\n _scopeAnimationRule(rule, scopeSelector, unscopedKeyframesSet) {\n let content = rule.content.replace(/((?:^|\\s+|;)(?:-webkit-)?animation(?:\\s*):(?:\\s*))([^;]+)/g, (_, start, animationDeclarations) => start +\n animationDeclarations.replace(this._animationDeclarationKeyframesRe, (original, leadingSpaces, quote = '', quotedName, nonQuotedName) => {\n if (quotedName) {\n return `${leadingSpaces}${this._scopeAnimationKeyframe(`${quote}${quotedName}${quote}`, scopeSelector, unscopedKeyframesSet)}`;\n }\n else {\n return animationKeywords.has(nonQuotedName) ?\n original :\n `${leadingSpaces}${this._scopeAnimationKeyframe(nonQuotedName, scopeSelector, unscopedKeyframesSet)}`;\n }\n }));\n content = content.replace(/((?:^|\\s+|;)(?:-webkit-)?animation-name(?:\\s*):(?:\\s*))([^;]+)/g, (_match, start, commaSeparatedKeyframes) => `${start}${commaSeparatedKeyframes.split(',')\n .map((keyframe) => this._scopeAnimationKeyframe(keyframe, scopeSelector, unscopedKeyframesSet))\n .join(',')}`);\n return { ...rule, content };\n }\n /*\n * Process styles to convert native ShadowDOM rules that will trip\n * up the css parser; we rely on decorating the stylesheet with inert rules.\n *\n * For example, we convert this rule:\n *\n * polyfill-next-selector { content: ':host menu-item'; }\n * ::content menu-item {\n *\n * to this:\n *\n * scopeName menu-item {\n *\n **/\n _insertPolyfillDirectivesInCssText(cssText) {\n return cssText.replace(_cssContentNextSelectorRe, function (...m) {\n return m[2] + '{';\n });\n }\n /*\n * Process styles to add rules which will only apply under the polyfill\n *\n * For example, we convert this rule:\n *\n * polyfill-rule {\n * content: ':host menu-item';\n * ...\n * }\n *\n * to this:\n *\n * scopeName menu-item {...}\n *\n **/\n _insertPolyfillRulesInCssText(cssText) {\n return cssText.replace(_cssContentRuleRe, (...m) => {\n const rule = m[0].replace(m[1], '').replace(m[2], '');\n return m[4] + rule;\n });\n }\n /* Ensure styles are scoped. Pseudo-scoping takes a rule like:\n *\n * .foo {... }\n *\n * and converts this to\n *\n * scopeName .foo { ... }\n */\n _scopeCssText(cssText, scopeSelector, hostSelector) {\n const unscopedRules = this._extractUnscopedRulesFromCssText(cssText);\n // replace :host and :host-context -shadowcsshost and -shadowcsshost respectively\n cssText = this._insertPolyfillHostInCssText(cssText);\n cssText = this._convertColonHost(cssText);\n cssText = this._convertColonHostContext(cssText);\n cssText = this._convertShadowDOMSelectors(cssText);\n if (scopeSelector) {\n cssText = this._scopeKeyframesRelatedCss(cssText, scopeSelector);\n cssText = this._scopeSelectors(cssText, scopeSelector, hostSelector);\n }\n cssText = cssText + '\\n' + unscopedRules;\n return cssText.trim();\n }\n /*\n * Process styles to add rules which will only apply under the polyfill\n * and do not process via CSSOM. (CSSOM is destructive to rules on rare\n * occasions, e.g. -webkit-calc on Safari.)\n * For example, we convert this rule:\n *\n * @polyfill-unscoped-rule {\n * content: 'menu-item';\n * ... }\n *\n * to this:\n *\n * menu-item {...}\n *\n **/\n _extractUnscopedRulesFromCssText(cssText) {\n let r = '';\n let m;\n _cssContentUnscopedRuleRe.lastIndex = 0;\n while ((m = _cssContentUnscopedRuleRe.exec(cssText)) !== null) {\n const rule = m[0].replace(m[2], '').replace(m[1], m[4]);\n r += rule + '\\n\\n';\n }\n return r;\n }\n /*\n * convert a rule like :host(.foo) > .bar { }\n *\n * to\n *\n * .foo
> .bar\n */\n _convertColonHost(cssText) {\n return cssText.replace(_cssColonHostRe, (_, hostSelectors, otherSelectors) => {\n if (hostSelectors) {\n const convertedSelectors = [];\n const hostSelectorArray = hostSelectors.split(',').map(p => p.trim());\n for (const hostSelector of hostSelectorArray) {\n if (!hostSelector)\n break;\n const convertedSelector = _polyfillHostNoCombinator + hostSelector.replace(_polyfillHost, '') + otherSelectors;\n convertedSelectors.push(convertedSelector);\n }\n return convertedSelectors.join(',');\n }\n else {\n return _polyfillHostNoCombinator + otherSelectors;\n }\n });\n }\n /*\n * convert a rule like :host-context(.foo) > .bar { }\n *\n * to\n *\n * .foo > .bar, .foo > .bar { }\n *\n * and\n *\n * :host-context(.foo:host) .bar { ... }\n *\n * to\n *\n * .foo .bar { ... }\n */\n _convertColonHostContext(cssText) {\n return cssText.replace(_cssColonHostContextReGlobal, selectorText => {\n // We have captured a selector that contains a `:host-context` rule.\n // For backward compatibility `:host-context` may contain a comma separated list of selectors.\n // Each context selector group will contain a list of host-context selectors that must match\n // an ancestor of the host.\n // (Normally `contextSelectorGroups` will only contain a single array of context selectors.)\n const contextSelectorGroups = [[]];\n // There may be more than `:host-context` in this selector so `selectorText` could look like:\n // `:host-context(.one):host-context(.two)`.\n // Execute `_cssColonHostContextRe` over and over until we have extracted all the\n // `:host-context` selectors from this selector.\n let match;\n while (match = _cssColonHostContextRe.exec(selectorText)) {\n // `match` = [':host-context()', , ]\n // The `` could actually be a comma separated list: `:host-context(.one, .two)`.\n const newContextSelectors = (match[1] ?? '').trim().split(',').map(m => m.trim()).filter(m => m !== '');\n // We must duplicate the current selector group for each of these new selectors.\n // For example if the current groups are:\n // ```\n // [\n // ['a', 'b', 'c'],\n // ['x', 'y', 'z'],\n // ]\n // ```\n // And we have a new set of comma separated selectors: `:host-context(m,n)` then the new\n // groups are:\n // ```\n // [\n // ['a', 'b', 'c', 'm'],\n // ['x', 'y', 'z', 'm'],\n // ['a', 'b', 'c', 'n'],\n // ['x', 'y', 'z', 'n'],\n // ]\n // ```\n const contextSelectorGroupsLength = contextSelectorGroups.length;\n repeatGroups(contextSelectorGroups, newContextSelectors.length);\n for (let i = 0; i < newContextSelectors.length; i++) {\n for (let j = 0; j < contextSelectorGroupsLength; j++) {\n contextSelectorGroups[j + (i * contextSelectorGroupsLength)].push(newContextSelectors[i]);\n }\n }\n // Update the `selectorText` and see repeat to see if there are more `:host-context`s.\n selectorText = match[2];\n }\n // The context selectors now must be combined with each other to capture all the possible\n // selectors that `:host-context` can match. See `combineHostContextSelectors()` for more\n // info about how this is done.\n return contextSelectorGroups\n .map(contextSelectors => combineHostContextSelectors(contextSelectors, selectorText))\n .join(', ');\n });\n }\n /*\n * Convert combinators like ::shadow and pseudo-elements like ::content\n * by replacing with space.\n */\n _convertShadowDOMSelectors(cssText) {\n return _shadowDOMSelectorsRe.reduce((result, pattern) => result.replace(pattern, ' '), cssText);\n }\n // change a selector like 'div' to 'name div'\n _scopeSelectors(cssText, scopeSelector, hostSelector) {\n return processRules(cssText, (rule) => {\n let selector = rule.selector;\n let content = rule.content;\n if (rule.selector[0] !== '@') {\n selector = this._scopeSelector(rule.selector, scopeSelector, hostSelector);\n }\n else if (rule.selector.startsWith('@media') || rule.selector.startsWith('@supports') ||\n rule.selector.startsWith('@document') || rule.selector.startsWith('@layer') ||\n rule.selector.startsWith('@container')) {\n content = this._scopeSelectors(rule.content, scopeSelector, hostSelector);\n }\n else if (rule.selector.startsWith('@font-face') || rule.selector.startsWith('@page')) {\n content = this._stripScopingSelectors(rule.content);\n }\n return new CssRule(selector, content);\n });\n }\n /**\n * Handle a css text that is within a rule that should not contain scope selectors by simply\n * removing them! An example of such a rule is `@font-face`.\n *\n * `@font-face` rules cannot contain nested selectors. Nor can they be nested under a selector.\n * Normally this would be a syntax error by the author of the styles. But in some rare cases, such\n * as importing styles from a library, and applying `:host ::ng-deep` to the imported styles, we\n * can end up with broken css if the imported styles happen to contain @font-face rules.\n *\n * For example:\n *\n * ```\n * :host ::ng-deep {\n * import 'some/lib/containing/font-face';\n * }\n *\n * Similar logic applies to `@page` rules which can contain a particular set of properties,\n * as well as some specific at-rules. Since they can't be encapsulated, we have to strip\n * any scoping selectors from them. For more information: https://www.w3.org/TR/css-page-3\n * ```\n */\n _stripScopingSelectors(cssText) {\n return processRules(cssText, rule => {\n const selector = rule.selector.replace(_shadowDeepSelectors, ' ')\n .replace(_polyfillHostNoCombinatorRe, ' ');\n return new CssRule(selector, rule.content);\n });\n }\n _scopeSelector(selector, scopeSelector, hostSelector) {\n return selector.split(',')\n .map(part => part.trim().split(_shadowDeepSelectors))\n .map((deepParts) => {\n const [shallowPart, ...otherParts] = deepParts;\n const applyScope = (shallowPart) => {\n if (this._selectorNeedsScoping(shallowPart, scopeSelector)) {\n return this._applySelectorScope(shallowPart, scopeSelector, hostSelector);\n }\n else {\n return shallowPart;\n }\n };\n return [applyScope(shallowPart), ...otherParts].join(' ');\n })\n .join(', ');\n }\n _selectorNeedsScoping(selector, scopeSelector) {\n const re = this._makeScopeMatcher(scopeSelector);\n return !re.test(selector);\n }\n _makeScopeMatcher(scopeSelector) {\n const lre = /\\[/g;\n const rre = /\\]/g;\n scopeSelector = scopeSelector.replace(lre, '\\\\[').replace(rre, '\\\\]');\n return new RegExp('^(' + scopeSelector + ')' + _selectorReSuffix, 'm');\n }\n // scope via name and [is=name]\n _applySimpleSelectorScope(selector, scopeSelector, hostSelector) {\n // In Android browser, the lastIndex is not reset when the regex is used in String.replace()\n _polyfillHostRe.lastIndex = 0;\n if (_polyfillHostRe.test(selector)) {\n const replaceBy = `[${hostSelector}]`;\n return selector\n .replace(_polyfillHostNoCombinatorRe, (hnc, selector) => {\n return selector.replace(/([^:]*)(:*)(.*)/, (_, before, colon, after) => {\n return before + replaceBy + colon + after;\n });\n })\n .replace(_polyfillHostRe, replaceBy + ' ');\n }\n return scopeSelector + ' ' + selector;\n }\n // return a selector with [name] suffix on each simple selector\n // e.g. .foo.bar > .zot becomes .foo[name].bar[name] > .zot[name] /** @internal */\n _applySelectorScope(selector, scopeSelector, hostSelector) {\n const isRe = /\\[is=([^\\]]*)\\]/g;\n scopeSelector = scopeSelector.replace(isRe, (_, ...parts) => parts[0]);\n const attrName = '[' + scopeSelector + ']';\n const _scopeSelectorPart = (p) => {\n let scopedP = p.trim();\n if (!scopedP) {\n return '';\n }\n if (p.indexOf(_polyfillHostNoCombinator) > -1) {\n scopedP = this._applySimpleSelectorScope(p, scopeSelector, hostSelector);\n }\n else {\n // remove :host since it should be unnecessary\n const t = p.replace(_polyfillHostRe, '');\n if (t.length > 0) {\n const matches = t.match(/([^:]*)(:*)(.*)/);\n if (matches) {\n scopedP = matches[1] + attrName + matches[2] + matches[3];\n }\n }\n }\n return scopedP;\n };\n const safeContent = new SafeSelector(selector);\n selector = safeContent.content();\n let scopedSelector = '';\n let startIndex = 0;\n let res;\n const sep = /( |>|\\+|~(?!=))\\s*/g;\n // If a selector appears before :host it should not be shimmed as it\n // matches on ancestor elements and not on elements in the host's shadow\n // `:host-context(div)` is transformed to\n // `-shadowcsshost-no-combinatordiv, div -shadowcsshost-no-combinator`\n // the `div` is not part of the component in the 2nd selectors and should not be scoped.\n // Historically `component-tag:host` was matching the component so we also want to preserve\n // this behavior to avoid breaking legacy apps (it should not match).\n // The behavior should be:\n // - `tag:host` -> `tag[h]` (this is to avoid breaking legacy apps, should not match anything)\n // - `tag :host` -> `tag [h]` (`tag` is not scoped because it's considered part of a\n // `:host-context(tag)`)\n const hasHost = selector.indexOf(_polyfillHostNoCombinator) > -1;\n // Only scope parts after the first `-shadowcsshost-no-combinator` when it is present\n let shouldScope = !hasHost;\n while ((res = sep.exec(selector)) !== null) {\n const separator = res[1];\n const part = selector.slice(startIndex, res.index).trim();\n // A space following an escaped hex value and followed by another hex character\n // (ie: \".\\fc ber\" for \".über\") is not a separator between 2 selectors\n // also keep in mind that backslashes are replaced by a placeholder by SafeSelector\n // These escaped selectors happen for example when esbuild runs with optimization.minify.\n if (part.match(_placeholderRe) && selector[res.index + 1]?.match(/[a-fA-F\\d]/)) {\n continue;\n }\n shouldScope = shouldScope || part.indexOf(_polyfillHostNoCombinator) > -1;\n const scopedPart = shouldScope ? _scopeSelectorPart(part) : part;\n scopedSelector += `${scopedPart} ${separator} `;\n startIndex = sep.lastIndex;\n }\n const part = selector.substring(startIndex);\n shouldScope = shouldScope || part.indexOf(_polyfillHostNoCombinator) > -1;\n scopedSelector += shouldScope ? _scopeSelectorPart(part) : part;\n // replace the placeholders with their original values\n return safeContent.restore(scopedSelector);\n }\n _insertPolyfillHostInCssText(selector) {\n return selector.replace(_colonHostContextRe, _polyfillHostContext)\n .replace(_colonHostRe, _polyfillHost);\n }\n}\nclass SafeSelector {\n constructor(selector) {\n this.placeholders = [];\n this.index = 0;\n // Replaces attribute selectors with placeholders.\n // The WS in [attr=\"va lue\"] would otherwise be interpreted as a selector separator.\n selector = this._escapeRegexMatches(selector, /(\\[[^\\]]*\\])/g);\n // CSS allows for certain special characters to be used in selectors if they're escaped.\n // E.g. `.foo:blue` won't match a class called `foo:blue`, because the colon denotes a\n // pseudo-class, but writing `.foo\\:blue` will match, because the colon was escaped.\n // Replace all escape sequences (`\\` followed by a character) with a placeholder so\n // that our handling of pseudo-selectors doesn't mess with them.\n selector = this._escapeRegexMatches(selector, /(\\\\.)/g);\n // Replaces the expression in `:nth-child(2n + 1)` with a placeholder.\n // WS and \"+\" would otherwise be interpreted as selector separators.\n this._content = selector.replace(/(:nth-[-\\w]+)(\\([^)]+\\))/g, (_, pseudo, exp) => {\n const replaceBy = `__ph-${this.index}__`;\n this.placeholders.push(exp);\n this.index++;\n return pseudo + replaceBy;\n });\n }\n restore(content) {\n return content.replace(_placeholderRe, (_ph, index) => this.placeholders[+index]);\n }\n content() {\n return this._content;\n }\n /**\n * Replaces all of the substrings that match a regex within a\n * special string (e.g. `__ph-0__`, `__ph-1__`, etc).\n */\n _escapeRegexMatches(content, pattern) {\n return content.replace(pattern, (_, keep) => {\n const replaceBy = `__ph-${this.index}__`;\n this.placeholders.push(keep);\n this.index++;\n return replaceBy;\n });\n }\n}\nconst _cssContentNextSelectorRe = /polyfill-next-selector[^}]*content:[\\s]*?(['\"])(.*?)\\1[;\\s]*}([^{]*?){/gim;\nconst _cssContentRuleRe = /(polyfill-rule)[^}]*(content:[\\s]*(['\"])(.*?)\\3)[;\\s]*[^}]*}/gim;\nconst _cssContentUnscopedRuleRe = /(polyfill-unscoped-rule)[^}]*(content:[\\s]*(['\"])(.*?)\\3)[;\\s]*[^}]*}/gim;\nconst _polyfillHost = '-shadowcsshost';\n// note: :host-context pre-processed to -shadowcsshostcontext.\nconst _polyfillHostContext = '-shadowcsscontext';\nconst _parenSuffix = '(?:\\\\((' +\n '(?:\\\\([^)(]*\\\\)|[^)(]*)+?' +\n ')\\\\))?([^,{]*)';\nconst _cssColonHostRe = new RegExp(_polyfillHost + _parenSuffix, 'gim');\nconst _cssColonHostContextReGlobal = new RegExp(_polyfillHostContext + _parenSuffix, 'gim');\nconst _cssColonHostContextRe = new RegExp(_polyfillHostContext + _parenSuffix, 'im');\nconst _polyfillHostNoCombinator = _polyfillHost + '-no-combinator';\nconst _polyfillHostNoCombinatorRe = /-shadowcsshost-no-combinator([^\\s]*)/;\nconst _shadowDOMSelectorsRe = [\n /::shadow/g,\n /::content/g,\n // Deprecated selectors\n /\\/shadow-deep\\//g,\n /\\/shadow\\//g,\n];\n// The deep combinator is deprecated in the CSS spec\n// Support for `>>>`, `deep`, `::ng-deep` is then also deprecated and will be removed in the future.\n// see https://github.com/angular/angular/pull/17677\nconst _shadowDeepSelectors = /(?:>>>)|(?:\\/deep\\/)|(?:::ng-deep)/g;\nconst _selectorReSuffix = '([>\\\\s~+[.,{:][\\\\s\\\\S]*)?$';\nconst _polyfillHostRe = /-shadowcsshost/gim;\nconst _colonHostRe = /:host/gim;\nconst _colonHostContextRe = /:host-context/gim;\nconst _commentRe = /\\/\\*[\\s\\S]*?\\*\\//g;\nconst _placeholderRe = /__ph-(\\d+)__/g;\nfunction stripComments(input) {\n return input.replace(_commentRe, '');\n}\nconst _commentWithHashRe = /\\/\\*\\s*#\\s*source(Mapping)?URL=[\\s\\S]+?\\*\\//g;\nfunction extractCommentsWithHash(input) {\n return input.match(_commentWithHashRe) || [];\n}\nconst BLOCK_PLACEHOLDER = '%BLOCK%';\nconst _ruleRe = /(\\s*)([^;\\{\\}]+?)(\\s*)((?:{%BLOCK%}?\\s*;?)|(?:\\s*;))/g;\nconst CONTENT_PAIRS = new Map([['{', '}']]);\nconst COMMA_IN_PLACEHOLDER = '%COMMA_IN_PLACEHOLDER%';\nconst SEMI_IN_PLACEHOLDER = '%SEMI_IN_PLACEHOLDER%';\nconst COLON_IN_PLACEHOLDER = '%COLON_IN_PLACEHOLDER%';\nconst _cssCommaInPlaceholderReGlobal = new RegExp(COMMA_IN_PLACEHOLDER, 'g');\nconst _cssSemiInPlaceholderReGlobal = new RegExp(SEMI_IN_PLACEHOLDER, 'g');\nconst _cssColonInPlaceholderReGlobal = new RegExp(COLON_IN_PLACEHOLDER, 'g');\nclass CssRule {\n constructor(selector, content) {\n this.selector = selector;\n this.content = content;\n }\n}\nfunction processRules(input, ruleCallback) {\n const escaped = escapeInStrings(input);\n const inputWithEscapedBlocks = escapeBlocks(escaped, CONTENT_PAIRS, BLOCK_PLACEHOLDER);\n let nextBlockIndex = 0;\n const escapedResult = inputWithEscapedBlocks.escapedString.replace(_ruleRe, (...m) => {\n const selector = m[2];\n let content = '';\n let suffix = m[4];\n let contentPrefix = '';\n if (suffix && suffix.startsWith('{' + BLOCK_PLACEHOLDER)) {\n content = inputWithEscapedBlocks.blocks[nextBlockIndex++];\n suffix = suffix.substring(BLOCK_PLACEHOLDER.length + 1);\n contentPrefix = '{';\n }\n const rule = ruleCallback(new CssRule(selector, content));\n return `${m[1]}${rule.selector}${m[3]}${contentPrefix}${rule.content}${suffix}`;\n });\n return unescapeInStrings(escapedResult);\n}\nclass StringWithEscapedBlocks {\n constructor(escapedString, blocks) {\n this.escapedString = escapedString;\n this.blocks = blocks;\n }\n}\nfunction escapeBlocks(input, charPairs, placeholder) {\n const resultParts = [];\n const escapedBlocks = [];\n let openCharCount = 0;\n let nonBlockStartIndex = 0;\n let blockStartIndex = -1;\n let openChar;\n let closeChar;\n for (let i = 0; i < input.length; i++) {\n const char = input[i];\n if (char === '\\\\') {\n i++;\n }\n else if (char === closeChar) {\n openCharCount--;\n if (openCharCount === 0) {\n escapedBlocks.push(input.substring(blockStartIndex, i));\n resultParts.push(placeholder);\n nonBlockStartIndex = i;\n blockStartIndex = -1;\n openChar = closeChar = undefined;\n }\n }\n else if (char === openChar) {\n openCharCount++;\n }\n else if (openCharCount === 0 && charPairs.has(char)) {\n openChar = char;\n closeChar = charPairs.get(char);\n openCharCount = 1;\n blockStartIndex = i + 1;\n resultParts.push(input.substring(nonBlockStartIndex, blockStartIndex));\n }\n }\n if (blockStartIndex !== -1) {\n escapedBlocks.push(input.substring(blockStartIndex));\n resultParts.push(placeholder);\n }\n else {\n resultParts.push(input.substring(nonBlockStartIndex));\n }\n return new StringWithEscapedBlocks(resultParts.join(''), escapedBlocks);\n}\n/**\n * Object containing as keys characters that should be substituted by placeholders\n * when found in strings during the css text parsing, and as values the respective\n * placeholders\n */\nconst ESCAPE_IN_STRING_MAP = {\n ';': SEMI_IN_PLACEHOLDER,\n ',': COMMA_IN_PLACEHOLDER,\n ':': COLON_IN_PLACEHOLDER\n};\n/**\n * Parse the provided css text and inside strings (meaning, inside pairs of unescaped single or\n * double quotes) replace specific characters with their respective placeholders as indicated\n * by the `ESCAPE_IN_STRING_MAP` map.\n *\n * For example convert the text\n * `animation: \"my-anim:at\\\"ion\" 1s;`\n * to\n * `animation: \"my-anim%COLON_IN_PLACEHOLDER%at\\\"ion\" 1s;`\n *\n * This is necessary in order to remove the meaning of some characters when found inside strings\n * (for example `;` indicates the end of a css declaration, `,` the sequence of values and `:` the\n * division between property and value during a declaration, none of these meanings apply when such\n * characters are within strings and so in order to prevent parsing issues they need to be replaced\n * with placeholder text for the duration of the css manipulation process).\n *\n * @param input the original css text.\n *\n * @returns the css text with specific characters in strings replaced by placeholders.\n **/\nfunction escapeInStrings(input) {\n let result = input;\n let currentQuoteChar = null;\n for (let i = 0; i < result.length; i++) {\n const char = result[i];\n if (char === '\\\\') {\n i++;\n }\n else {\n if (currentQuoteChar !== null) {\n // index i is inside a quoted sub-string\n if (char === currentQuoteChar) {\n currentQuoteChar = null;\n }\n else {\n const placeholder = ESCAPE_IN_STRING_MAP[char];\n if (placeholder) {\n result = `${result.substr(0, i)}${placeholder}${result.substr(i + 1)}`;\n i += placeholder.length - 1;\n }\n }\n }\n else if (char === '\\'' || char === '\"') {\n currentQuoteChar = char;\n }\n }\n }\n return result;\n}\n/**\n * Replace in a string all occurrences of keys in the `ESCAPE_IN_STRING_MAP` map with their\n * original representation, this is simply used to revert the changes applied by the\n * escapeInStrings function.\n *\n * For example it reverts the text:\n * `animation: \"my-anim%COLON_IN_PLACEHOLDER%at\\\"ion\" 1s;`\n * to it's original form of:\n * `animation: \"my-anim:at\\\"ion\" 1s;`\n *\n * Note: For the sake of simplicity this function does not check that the placeholders are\n * actually inside strings as it would anyway be extremely unlikely to find them outside of strings.\n *\n * @param input the css text containing the placeholders.\n *\n * @returns the css text without the placeholders.\n */\nfunction unescapeInStrings(input) {\n let result = input.replace(_cssCommaInPlaceholderReGlobal, ',');\n result = result.replace(_cssSemiInPlaceholderReGlobal, ';');\n result = result.replace(_cssColonInPlaceholderReGlobal, ':');\n return result;\n}\n/**\n * Unescape all quotes present in a string, but only if the string was actually already\n * quoted.\n *\n * This generates a \"canonical\" representation of strings which can be used to match strings\n * which would otherwise only differ because of differently escaped quotes.\n *\n * For example it converts the string (assumed to be quoted):\n * `this \\\\\"is\\\\\" a \\\\'\\\\\\\\'test`\n * to:\n * `this \"is\" a '\\\\\\\\'test`\n * (note that the latter backslashes are not removed as they are not actually escaping the single\n * quote)\n *\n *\n * @param input the string possibly containing escaped quotes.\n * @param isQuoted boolean indicating whether the string was quoted inside a bigger string (if not\n * then it means that it doesn't represent an inner string and thus no unescaping is required)\n *\n * @returns the string in the \"canonical\" representation without escaped quotes.\n */\nfunction unescapeQuotes(str, isQuoted) {\n return !isQuoted ? str : str.replace(/((?:^|[^\\\\])(?:\\\\\\\\)*)\\\\(?=['\"])/g, '$1');\n}\n/**\n * Combine the `contextSelectors` with the `hostMarker` and the `otherSelectors`\n * to create a selector that matches the same as `:host-context()`.\n *\n * Given a single context selector `A` we need to output selectors that match on the host and as an\n * ancestor of the host:\n *\n * ```\n * A , A {}\n * ```\n *\n * When there is more than one context selector we also have to create combinations of those\n * selectors with each other. For example if there are `A` and `B` selectors the output is:\n *\n * ```\n * AB, AB , A B,\n * B A, A B , B A {}\n * ```\n *\n * And so on...\n *\n * @param hostMarker the string that selects the host element.\n * @param contextSelectors an array of context selectors that will be combined.\n * @param otherSelectors the rest of the selectors that are not context selectors.\n */\nfunction combineHostContextSelectors(contextSelectors, otherSelectors) {\n const hostMarker = _polyfillHostNoCombinator;\n _polyfillHostRe.lastIndex = 0; // reset the regex to ensure we get an accurate test\n const otherSelectorsHasHost = _polyfillHostRe.test(otherSelectors);\n // If there are no context selectors then just output a host marker\n if (contextSelectors.length === 0) {\n return hostMarker + otherSelectors;\n }\n const combined = [contextSelectors.pop() || ''];\n while (contextSelectors.length > 0) {\n const length = combined.length;\n const contextSelector = contextSelectors.pop();\n for (let i = 0; i < length; i++) {\n const previousSelectors = combined[i];\n // Add the new selector as a descendant of the previous selectors\n combined[length * 2 + i] = previousSelectors + ' ' + contextSelector;\n // Add the new selector as an ancestor of the previous selectors\n combined[length + i] = contextSelector + ' ' + previousSelectors;\n // Add the new selector to act on the same element as the previous selectors\n combined[i] = contextSelector + previousSelectors;\n }\n }\n // Finally connect the selector to the `hostMarker`s: either acting directly on the host\n // (A) or as an ancestor (A ).\n return combined\n .map(s => otherSelectorsHasHost ?\n `${s}${otherSelectors}` :\n `${s}${hostMarker}${otherSelectors}, ${s} ${hostMarker}${otherSelectors}`)\n .join(',');\n}\n/**\n * Mutate the given `groups` array so that there are `multiples` clones of the original array\n * stored.\n *\n * For example `repeatGroups([a, b], 3)` will result in `[a, b, a, b, a, b]` - but importantly the\n * newly added groups will be clones of the original.\n *\n * @param groups An array of groups of strings that will be repeated. This array is mutated\n * in-place.\n * @param multiples The number of times the current groups should appear.\n */\nfunction repeatGroups(groups, multiples) {\n const length = groups.length;\n for (let i = 1; i < multiples; i++) {\n for (let j = 0; j < length; j++) {\n groups[j + (i * length)] = groups[j].slice(0);\n }\n }\n}\n\n/**\n * Parses string representation of a style and converts it into object literal.\n *\n * @param value string representation of style as used in the `style` attribute in HTML.\n * Example: `color: red; height: auto`.\n * @returns An array of style property name and value pairs, e.g. `['color', 'red', 'height',\n * 'auto']`\n */\nfunction parse(value) {\n // we use a string array here instead of a string map\n // because a string-map is not guaranteed to retain the\n // order of the entries whereas a string array can be\n // constructed in a [key, value, key, value] format.\n const styles = [];\n let i = 0;\n let parenDepth = 0;\n let quote = 0 /* Char.QuoteNone */;\n let valueStart = 0;\n let propStart = 0;\n let currentProp = null;\n while (i < value.length) {\n const token = value.charCodeAt(i++);\n switch (token) {\n case 40 /* Char.OpenParen */:\n parenDepth++;\n break;\n case 41 /* Char.CloseParen */:\n parenDepth--;\n break;\n case 39 /* Char.QuoteSingle */:\n // valueStart needs to be there since prop values don't\n // have quotes in CSS\n if (quote === 0 /* Char.QuoteNone */) {\n quote = 39 /* Char.QuoteSingle */;\n }\n else if (quote === 39 /* Char.QuoteSingle */ && value.charCodeAt(i - 1) !== 92 /* Char.BackSlash */) {\n quote = 0 /* Char.QuoteNone */;\n }\n break;\n case 34 /* Char.QuoteDouble */:\n // same logic as above\n if (quote === 0 /* Char.QuoteNone */) {\n quote = 34 /* Char.QuoteDouble */;\n }\n else if (quote === 34 /* Char.QuoteDouble */ && value.charCodeAt(i - 1) !== 92 /* Char.BackSlash */) {\n quote = 0 /* Char.QuoteNone */;\n }\n break;\n case 58 /* Char.Colon */:\n if (!currentProp && parenDepth === 0 && quote === 0 /* Char.QuoteNone */) {\n currentProp = hyphenate(value.substring(propStart, i - 1).trim());\n valueStart = i;\n }\n break;\n case 59 /* Char.Semicolon */:\n if (currentProp && valueStart > 0 && parenDepth === 0 && quote === 0 /* Char.QuoteNone */) {\n const styleVal = value.substring(valueStart, i - 1).trim();\n styles.push(currentProp, styleVal);\n propStart = i;\n valueStart = 0;\n currentProp = null;\n }\n break;\n }\n }\n if (currentProp && valueStart) {\n const styleVal = value.slice(valueStart).trim();\n styles.push(currentProp, styleVal);\n }\n return styles;\n}\nfunction hyphenate(value) {\n return value\n .replace(/[a-z][A-Z]/g, v => {\n return v.charAt(0) + '-' + v.charAt(1);\n })\n .toLowerCase();\n}\n\nconst IMPORTANT_FLAG = '!important';\n/**\n * Minimum amount of binding slots required in the runtime for style/class bindings.\n *\n * Styling in Angular uses up two slots in the runtime LView/TData data structures to\n * record binding data, property information and metadata.\n *\n * When a binding is registered it will place the following information in the `LView`:\n *\n * slot 1) binding value\n * slot 2) cached value (all other values collected before it in string form)\n *\n * When a binding is registered it will place the following information in the `TData`:\n *\n * slot 1) prop name\n * slot 2) binding index that points to the previous style/class binding (and some extra config\n * values)\n *\n * Let's imagine we have a binding that looks like so:\n *\n * ```\n * \n * ```\n *\n * Our `LView` and `TData` data-structures look like so:\n *\n * ```typescript\n * LView = [\n * // ...\n * x, // value of x\n * \"width: x\",\n *\n * y, // value of y\n * \"width: x; height: y\",\n * // ...\n * ];\n *\n * TData = [\n * // ...\n * \"width\", // binding slot 20\n * 0,\n *\n * \"height\",\n * 20,\n * // ...\n * ];\n * ```\n *\n * */\nconst MIN_STYLING_BINDING_SLOTS_REQUIRED = 2;\n/**\n * Produces creation/update instructions for all styling bindings (class and style)\n *\n * It also produces the creation instruction to register all initial styling values\n * (which are all the static class=\"...\" and style=\"...\" attribute values that exist\n * on an element within a template).\n *\n * The builder class below handles producing instructions for the following cases:\n *\n * - Static style/class attributes (style=\"...\" and class=\"...\")\n * - Dynamic style/class map bindings ([style]=\"map\" and [class]=\"map|string\")\n * - Dynamic style/class property bindings ([style.prop]=\"exp\" and [class.name]=\"exp\")\n *\n * Due to the complex relationship of all of these cases, the instructions generated\n * for these attributes/properties/bindings must be done so in the correct order. The\n * order which these must be generated is as follows:\n *\n * if (createMode) {\n * styling(...)\n * }\n * if (updateMode) {\n * styleMap(...)\n * classMap(...)\n * styleProp(...)\n * classProp(...)\n * }\n *\n * The creation/update methods within the builder class produce these instructions.\n */\nclass StylingBuilder {\n constructor(_directiveExpr) {\n this._directiveExpr = _directiveExpr;\n /** Whether or not there are any static styling values present */\n this._hasInitialValues = false;\n /**\n * Whether or not there are any styling bindings present\n * (i.e. `[style]`, `[class]`, `[style.prop]` or `[class.name]`)\n */\n this.hasBindings = false;\n this.hasBindingsWithPipes = false;\n /** the input for [class] (if it exists) */\n this._classMapInput = null;\n /** the input for [style] (if it exists) */\n this._styleMapInput = null;\n /** an array of each [style.prop] input */\n this._singleStyleInputs = null;\n /** an array of each [class.name] input */\n this._singleClassInputs = null;\n this._lastStylingInput = null;\n this._firstStylingInput = null;\n // maps are used instead of hash maps because a Map will\n // retain the ordering of the keys\n /**\n * Represents the location of each style binding in the template\n * (e.g. `
` implies\n * that `width=0` and `height=1`)\n */\n this._stylesIndex = new Map();\n /**\n * Represents the location of each class binding in the template\n * (e.g. `
` implies\n * that `big=0` and `hidden=1`)\n */\n this._classesIndex = new Map();\n this._initialStyleValues = [];\n this._initialClassValues = [];\n }\n /**\n * Registers a given input to the styling builder to be later used when producing AOT code.\n *\n * The code below will only accept the input if it is somehow tied to styling (whether it be\n * style/class bindings or static style/class attributes).\n */\n registerBoundInput(input) {\n // [attr.style] or [attr.class] are skipped in the code below,\n // they should not be treated as styling-based bindings since\n // they are intended to be written directly to the attr and\n // will therefore skip all style/class resolution that is present\n // with style=\"\", [style]=\"\" and [style.prop]=\"\", class=\"\",\n // [class.prop]=\"\". [class]=\"\" assignments\n let binding = null;\n let name = input.name;\n switch (input.type) {\n case 0 /* BindingType.Property */:\n binding = this.registerInputBasedOnName(name, input.value, input.sourceSpan);\n break;\n case 3 /* BindingType.Style */:\n binding = this.registerStyleInput(name, false, input.value, input.sourceSpan, input.unit);\n break;\n case 2 /* BindingType.Class */:\n binding = this.registerClassInput(name, false, input.value, input.sourceSpan);\n break;\n }\n return binding ? true : false;\n }\n registerInputBasedOnName(name, expression, sourceSpan) {\n let binding = null;\n const prefix = name.substring(0, 6);\n const isStyle = name === 'style' || prefix === 'style.' || prefix === 'style!';\n const isClass = !isStyle && (name === 'class' || prefix === 'class.' || prefix === 'class!');\n if (isStyle || isClass) {\n const isMapBased = name.charAt(5) !== '.'; // style.prop or class.prop makes this a no\n const property = name.slice(isMapBased ? 5 : 6); // the dot explains why there's a +1\n if (isStyle) {\n binding = this.registerStyleInput(property, isMapBased, expression, sourceSpan);\n }\n else {\n binding = this.registerClassInput(property, isMapBased, expression, sourceSpan);\n }\n }\n return binding;\n }\n registerStyleInput(name, isMapBased, value, sourceSpan, suffix) {\n if (isEmptyExpression(value)) {\n return null;\n }\n // CSS custom properties are case-sensitive so we shouldn't normalize them.\n // See: https://www.w3.org/TR/css-variables-1/#defining-variables\n if (!isCssCustomProperty(name)) {\n name = hyphenate(name);\n }\n const { property, hasOverrideFlag, suffix: bindingSuffix } = parseProperty(name);\n suffix = typeof suffix === 'string' && suffix.length !== 0 ? suffix : bindingSuffix;\n const entry = { name: property, suffix: suffix, value, sourceSpan, hasOverrideFlag };\n if (isMapBased) {\n this._styleMapInput = entry;\n }\n else {\n (this._singleStyleInputs = this._singleStyleInputs || []).push(entry);\n registerIntoMap(this._stylesIndex, property);\n }\n this._lastStylingInput = entry;\n this._firstStylingInput = this._firstStylingInput || entry;\n this._checkForPipes(value);\n this.hasBindings = true;\n return entry;\n }\n registerClassInput(name, isMapBased, value, sourceSpan) {\n if (isEmptyExpression(value)) {\n return null;\n }\n const { property, hasOverrideFlag } = parseProperty(name);\n const entry = { name: property, value, sourceSpan, hasOverrideFlag, suffix: null };\n if (isMapBased) {\n this._classMapInput = entry;\n }\n else {\n (this._singleClassInputs = this._singleClassInputs || []).push(entry);\n registerIntoMap(this._classesIndex, property);\n }\n this._lastStylingInput = entry;\n this._firstStylingInput = this._firstStylingInput || entry;\n this._checkForPipes(value);\n this.hasBindings = true;\n return entry;\n }\n _checkForPipes(value) {\n if ((value instanceof ASTWithSource) && (value.ast instanceof BindingPipe)) {\n this.hasBindingsWithPipes = true;\n }\n }\n /**\n * Registers the element's static style string value to the builder.\n *\n * @param value the style string (e.g. `width:100px; height:200px;`)\n */\n registerStyleAttr(value) {\n this._initialStyleValues = parse(value);\n this._hasInitialValues = true;\n }\n /**\n * Registers the element's static class string value to the builder.\n *\n * @param value the className string (e.g. `disabled gold zoom`)\n */\n registerClassAttr(value) {\n this._initialClassValues = value.trim().split(/\\s+/g);\n this._hasInitialValues = true;\n }\n /**\n * Appends all styling-related expressions to the provided attrs array.\n *\n * @param attrs an existing array where each of the styling expressions\n * will be inserted into.\n */\n populateInitialStylingAttrs(attrs) {\n // [CLASS_MARKER, 'foo', 'bar', 'baz' ...]\n if (this._initialClassValues.length) {\n attrs.push(literal(1 /* AttributeMarker.Classes */));\n for (let i = 0; i < this._initialClassValues.length; i++) {\n attrs.push(literal(this._initialClassValues[i]));\n }\n }\n // [STYLE_MARKER, 'width', '200px', 'height', '100px', ...]\n if (this._initialStyleValues.length) {\n attrs.push(literal(2 /* AttributeMarker.Styles */));\n for (let i = 0; i < this._initialStyleValues.length; i += 2) {\n attrs.push(literal(this._initialStyleValues[i]), literal(this._initialStyleValues[i + 1]));\n }\n }\n }\n /**\n * Builds an instruction with all the expressions and parameters for `elementHostAttrs`.\n *\n * The instruction generation code below is used for producing the AOT statement code which is\n * responsible for registering initial styles (within a directive hostBindings' creation block),\n * as well as any of the provided attribute values, to the directive host element.\n */\n assignHostAttrs(attrs, definitionMap) {\n if (this._directiveExpr && (attrs.length || this._hasInitialValues)) {\n this.populateInitialStylingAttrs(attrs);\n definitionMap.set('hostAttrs', literalArr(attrs));\n }\n }\n /**\n * Builds an instruction with all the expressions and parameters for `classMap`.\n *\n * The instruction data will contain all expressions for `classMap` to function\n * which includes the `[class]` expression params.\n */\n buildClassMapInstruction(valueConverter) {\n if (this._classMapInput) {\n return this._buildMapBasedInstruction(valueConverter, true, this._classMapInput);\n }\n return null;\n }\n /**\n * Builds an instruction with all the expressions and parameters for `styleMap`.\n *\n * The instruction data will contain all expressions for `styleMap` to function\n * which includes the `[style]` expression params.\n */\n buildStyleMapInstruction(valueConverter) {\n if (this._styleMapInput) {\n return this._buildMapBasedInstruction(valueConverter, false, this._styleMapInput);\n }\n return null;\n }\n _buildMapBasedInstruction(valueConverter, isClassBased, stylingInput) {\n // each styling binding value is stored in the LView\n // map-based bindings allocate two slots: one for the\n // previous binding value and another for the previous\n // className or style attribute value.\n let totalBindingSlotsRequired = MIN_STYLING_BINDING_SLOTS_REQUIRED;\n // these values must be outside of the update block so that they can\n // be evaluated (the AST visit call) during creation time so that any\n // pipes can be picked up in time before the template is built\n const mapValue = stylingInput.value.visit(valueConverter);\n let reference;\n if (mapValue instanceof Interpolation) {\n totalBindingSlotsRequired += mapValue.expressions.length;\n reference = isClassBased ? getClassMapInterpolationExpression(mapValue) :\n getStyleMapInterpolationExpression(mapValue);\n }\n else {\n reference = isClassBased ? Identifiers.classMap : Identifiers.styleMap;\n }\n return {\n reference,\n calls: [{\n supportsInterpolation: true,\n sourceSpan: stylingInput.sourceSpan,\n allocateBindingSlots: totalBindingSlotsRequired,\n params: (convertFn) => {\n const convertResult = convertFn(mapValue);\n const params = Array.isArray(convertResult) ? convertResult : [convertResult];\n return params;\n }\n }]\n };\n }\n _buildSingleInputs(reference, inputs, valueConverter, getInterpolationExpressionFn, isClassBased) {\n const instructions = [];\n inputs.forEach(input => {\n const previousInstruction = instructions[instructions.length - 1];\n const value = input.value.visit(valueConverter);\n let referenceForCall = reference;\n // each styling binding value is stored in the LView\n // but there are two values stored for each binding:\n // 1) the value itself\n // 2) an intermediate value (concatenation of style up to this point).\n // We need to store the intermediate value so that we don't allocate\n // the strings on each CD.\n let totalBindingSlotsRequired = MIN_STYLING_BINDING_SLOTS_REQUIRED;\n if (value instanceof Interpolation) {\n totalBindingSlotsRequired += value.expressions.length;\n if (getInterpolationExpressionFn) {\n referenceForCall = getInterpolationExpressionFn(value);\n }\n }\n const call = {\n sourceSpan: input.sourceSpan,\n allocateBindingSlots: totalBindingSlotsRequired,\n supportsInterpolation: !!getInterpolationExpressionFn,\n params: (convertFn) => {\n // params => stylingProp(propName, value, suffix)\n const params = [];\n params.push(literal(input.name));\n const convertResult = convertFn(value);\n if (Array.isArray(convertResult)) {\n params.push(...convertResult);\n }\n else {\n params.push(convertResult);\n }\n // [style.prop] bindings may use suffix values (e.g. px, em, etc...), therefore,\n // if that is detected then we need to pass that in as an optional param.\n if (!isClassBased && input.suffix !== null) {\n params.push(literal(input.suffix));\n }\n return params;\n }\n };\n // If we ended up generating a call to the same instruction as the previous styling property\n // we can chain the calls together safely to save some bytes, otherwise we have to generate\n // a separate instruction call. This is primarily a concern with interpolation instructions\n // where we may start off with one `reference`, but end up using another based on the\n // number of interpolations.\n if (previousInstruction && previousInstruction.reference === referenceForCall) {\n previousInstruction.calls.push(call);\n }\n else {\n instructions.push({ reference: referenceForCall, calls: [call] });\n }\n });\n return instructions;\n }\n _buildClassInputs(valueConverter) {\n if (this._singleClassInputs) {\n return this._buildSingleInputs(Identifiers.classProp, this._singleClassInputs, valueConverter, null, true);\n }\n return [];\n }\n _buildStyleInputs(valueConverter) {\n if (this._singleStyleInputs) {\n return this._buildSingleInputs(Identifiers.styleProp, this._singleStyleInputs, valueConverter, getStylePropInterpolationExpression, false);\n }\n return [];\n }\n /**\n * Constructs all instructions which contain the expressions that will be placed\n * into the update block of a template function or a directive hostBindings function.\n */\n buildUpdateLevelInstructions(valueConverter) {\n const instructions = [];\n if (this.hasBindings) {\n const styleMapInstruction = this.buildStyleMapInstruction(valueConverter);\n if (styleMapInstruction) {\n instructions.push(styleMapInstruction);\n }\n const classMapInstruction = this.buildClassMapInstruction(valueConverter);\n if (classMapInstruction) {\n instructions.push(classMapInstruction);\n }\n instructions.push(...this._buildStyleInputs(valueConverter));\n instructions.push(...this._buildClassInputs(valueConverter));\n }\n return instructions;\n }\n}\nfunction registerIntoMap(map, key) {\n if (!map.has(key)) {\n map.set(key, map.size);\n }\n}\nfunction parseProperty(name) {\n let hasOverrideFlag = false;\n const overrideIndex = name.indexOf(IMPORTANT_FLAG);\n if (overrideIndex !== -1) {\n name = overrideIndex > 0 ? name.substring(0, overrideIndex) : '';\n hasOverrideFlag = true;\n }\n let suffix = null;\n let property = name;\n const unitIndex = name.lastIndexOf('.');\n if (unitIndex > 0) {\n suffix = name.slice(unitIndex + 1);\n property = name.substring(0, unitIndex);\n }\n return { property, suffix, hasOverrideFlag };\n}\n/**\n * Gets the instruction to generate for an interpolated class map.\n * @param interpolation An Interpolation AST\n */\nfunction getClassMapInterpolationExpression(interpolation) {\n switch (getInterpolationArgsLength(interpolation)) {\n case 1:\n return Identifiers.classMap;\n case 3:\n return Identifiers.classMapInterpolate1;\n case 5:\n return Identifiers.classMapInterpolate2;\n case 7:\n return Identifiers.classMapInterpolate3;\n case 9:\n return Identifiers.classMapInterpolate4;\n case 11:\n return Identifiers.classMapInterpolate5;\n case 13:\n return Identifiers.classMapInterpolate6;\n case 15:\n return Identifiers.classMapInterpolate7;\n case 17:\n return Identifiers.classMapInterpolate8;\n default:\n return Identifiers.classMapInterpolateV;\n }\n}\n/**\n * Gets the instruction to generate for an interpolated style map.\n * @param interpolation An Interpolation AST\n */\nfunction getStyleMapInterpolationExpression(interpolation) {\n switch (getInterpolationArgsLength(interpolation)) {\n case 1:\n return Identifiers.styleMap;\n case 3:\n return Identifiers.styleMapInterpolate1;\n case 5:\n return Identifiers.styleMapInterpolate2;\n case 7:\n return Identifiers.styleMapInterpolate3;\n case 9:\n return Identifiers.styleMapInterpolate4;\n case 11:\n return Identifiers.styleMapInterpolate5;\n case 13:\n return Identifiers.styleMapInterpolate6;\n case 15:\n return Identifiers.styleMapInterpolate7;\n case 17:\n return Identifiers.styleMapInterpolate8;\n default:\n return Identifiers.styleMapInterpolateV;\n }\n}\n/**\n * Gets the instruction to generate for an interpolated style prop.\n * @param interpolation An Interpolation AST\n */\nfunction getStylePropInterpolationExpression(interpolation) {\n switch (getInterpolationArgsLength(interpolation)) {\n case 1:\n return Identifiers.styleProp;\n case 3:\n return Identifiers.stylePropInterpolate1;\n case 5:\n return Identifiers.stylePropInterpolate2;\n case 7:\n return Identifiers.stylePropInterpolate3;\n case 9:\n return Identifiers.stylePropInterpolate4;\n case 11:\n return Identifiers.stylePropInterpolate5;\n case 13:\n return Identifiers.stylePropInterpolate6;\n case 15:\n return Identifiers.stylePropInterpolate7;\n case 17:\n return Identifiers.stylePropInterpolate8;\n default:\n return Identifiers.stylePropInterpolateV;\n }\n}\n/**\n * Checks whether property name is a custom CSS property.\n * See: https://www.w3.org/TR/css-variables-1\n */\nfunction isCssCustomProperty(name) {\n return name.startsWith('--');\n}\nfunction isEmptyExpression(ast) {\n if (ast instanceof ASTWithSource) {\n ast = ast.ast;\n }\n return ast instanceof EmptyExpr;\n}\n\nvar TokenType;\n(function (TokenType) {\n TokenType[TokenType[\"Character\"] = 0] = \"Character\";\n TokenType[TokenType[\"Identifier\"] = 1] = \"Identifier\";\n TokenType[TokenType[\"PrivateIdentifier\"] = 2] = \"PrivateIdentifier\";\n TokenType[TokenType[\"Keyword\"] = 3] = \"Keyword\";\n TokenType[TokenType[\"String\"] = 4] = \"String\";\n TokenType[TokenType[\"Operator\"] = 5] = \"Operator\";\n TokenType[TokenType[\"Number\"] = 6] = \"Number\";\n TokenType[TokenType[\"Error\"] = 7] = \"Error\";\n})(TokenType || (TokenType = {}));\nconst KEYWORDS = ['var', 'let', 'as', 'null', 'undefined', 'true', 'false', 'if', 'else', 'this'];\nclass Lexer {\n tokenize(text) {\n const scanner = new _Scanner(text);\n const tokens = [];\n let token = scanner.scanToken();\n while (token != null) {\n tokens.push(token);\n token = scanner.scanToken();\n }\n return tokens;\n }\n}\nclass Token {\n constructor(index, end, type, numValue, strValue) {\n this.index = index;\n this.end = end;\n this.type = type;\n this.numValue = numValue;\n this.strValue = strValue;\n }\n isCharacter(code) {\n return this.type == TokenType.Character && this.numValue == code;\n }\n isNumber() {\n return this.type == TokenType.Number;\n }\n isString() {\n return this.type == TokenType.String;\n }\n isOperator(operator) {\n return this.type == TokenType.Operator && this.strValue == operator;\n }\n isIdentifier() {\n return this.type == TokenType.Identifier;\n }\n isPrivateIdentifier() {\n return this.type == TokenType.PrivateIdentifier;\n }\n isKeyword() {\n return this.type == TokenType.Keyword;\n }\n isKeywordLet() {\n return this.type == TokenType.Keyword && this.strValue == 'let';\n }\n isKeywordAs() {\n return this.type == TokenType.Keyword && this.strValue == 'as';\n }\n isKeywordNull() {\n return this.type == TokenType.Keyword && this.strValue == 'null';\n }\n isKeywordUndefined() {\n return this.type == TokenType.Keyword && this.strValue == 'undefined';\n }\n isKeywordTrue() {\n return this.type == TokenType.Keyword && this.strValue == 'true';\n }\n isKeywordFalse() {\n return this.type == TokenType.Keyword && this.strValue == 'false';\n }\n isKeywordThis() {\n return this.type == TokenType.Keyword && this.strValue == 'this';\n }\n isError() {\n return this.type == TokenType.Error;\n }\n toNumber() {\n return this.type == TokenType.Number ? this.numValue : -1;\n }\n toString() {\n switch (this.type) {\n case TokenType.Character:\n case TokenType.Identifier:\n case TokenType.Keyword:\n case TokenType.Operator:\n case TokenType.PrivateIdentifier:\n case TokenType.String:\n case TokenType.Error:\n return this.strValue;\n case TokenType.Number:\n return this.numValue.toString();\n default:\n return null;\n }\n }\n}\nfunction newCharacterToken(index, end, code) {\n return new Token(index, end, TokenType.Character, code, String.fromCharCode(code));\n}\nfunction newIdentifierToken(index, end, text) {\n return new Token(index, end, TokenType.Identifier, 0, text);\n}\nfunction newPrivateIdentifierToken(index, end, text) {\n return new Token(index, end, TokenType.PrivateIdentifier, 0, text);\n}\nfunction newKeywordToken(index, end, text) {\n return new Token(index, end, TokenType.Keyword, 0, text);\n}\nfunction newOperatorToken(index, end, text) {\n return new Token(index, end, TokenType.Operator, 0, text);\n}\nfunction newStringToken(index, end, text) {\n return new Token(index, end, TokenType.String, 0, text);\n}\nfunction newNumberToken(index, end, n) {\n return new Token(index, end, TokenType.Number, n, '');\n}\nfunction newErrorToken(index, end, message) {\n return new Token(index, end, TokenType.Error, 0, message);\n}\nconst EOF = new Token(-1, -1, TokenType.Character, 0, '');\nclass _Scanner {\n constructor(input) {\n this.input = input;\n this.peek = 0;\n this.index = -1;\n this.length = input.length;\n this.advance();\n }\n advance() {\n this.peek = ++this.index >= this.length ? $EOF : this.input.charCodeAt(this.index);\n }\n scanToken() {\n const input = this.input, length = this.length;\n let peek = this.peek, index = this.index;\n // Skip whitespace.\n while (peek <= $SPACE) {\n if (++index >= length) {\n peek = $EOF;\n break;\n }\n else {\n peek = input.charCodeAt(index);\n }\n }\n this.peek = peek;\n this.index = index;\n if (index >= length) {\n return null;\n }\n // Handle identifiers and numbers.\n if (isIdentifierStart(peek))\n return this.scanIdentifier();\n if (isDigit(peek))\n return this.scanNumber(index);\n const start = index;\n switch (peek) {\n case $PERIOD:\n this.advance();\n return isDigit(this.peek) ? this.scanNumber(start) :\n newCharacterToken(start, this.index, $PERIOD);\n case $LPAREN:\n case $RPAREN:\n case $LBRACE:\n case $RBRACE:\n case $LBRACKET:\n case $RBRACKET:\n case $COMMA:\n case $COLON:\n case $SEMICOLON:\n return this.scanCharacter(start, peek);\n case $SQ:\n case $DQ:\n return this.scanString();\n case $HASH:\n return this.scanPrivateIdentifier();\n case $PLUS:\n case $MINUS:\n case $STAR:\n case $SLASH:\n case $PERCENT:\n case $CARET:\n return this.scanOperator(start, String.fromCharCode(peek));\n case $QUESTION:\n return this.scanQuestion(start);\n case $LT:\n case $GT:\n return this.scanComplexOperator(start, String.fromCharCode(peek), $EQ, '=');\n case $BANG:\n case $EQ:\n return this.scanComplexOperator(start, String.fromCharCode(peek), $EQ, '=', $EQ, '=');\n case $AMPERSAND:\n return this.scanComplexOperator(start, '&', $AMPERSAND, '&');\n case $BAR:\n return this.scanComplexOperator(start, '|', $BAR, '|');\n case $NBSP:\n while (isWhitespace(this.peek))\n this.advance();\n return this.scanToken();\n }\n this.advance();\n return this.error(`Unexpected character [${String.fromCharCode(peek)}]`, 0);\n }\n scanCharacter(start, code) {\n this.advance();\n return newCharacterToken(start, this.index, code);\n }\n scanOperator(start, str) {\n this.advance();\n return newOperatorToken(start, this.index, str);\n }\n /**\n * Tokenize a 2/3 char long operator\n *\n * @param start start index in the expression\n * @param one first symbol (always part of the operator)\n * @param twoCode code point for the second symbol\n * @param two second symbol (part of the operator when the second code point matches)\n * @param threeCode code point for the third symbol\n * @param three third symbol (part of the operator when provided and matches source expression)\n */\n scanComplexOperator(start, one, twoCode, two, threeCode, three) {\n this.advance();\n let str = one;\n if (this.peek == twoCode) {\n this.advance();\n str += two;\n }\n if (threeCode != null && this.peek == threeCode) {\n this.advance();\n str += three;\n }\n return newOperatorToken(start, this.index, str);\n }\n scanIdentifier() {\n const start = this.index;\n this.advance();\n while (isIdentifierPart(this.peek))\n this.advance();\n const str = this.input.substring(start, this.index);\n return KEYWORDS.indexOf(str) > -1 ? newKeywordToken(start, this.index, str) :\n newIdentifierToken(start, this.index, str);\n }\n /** Scans an ECMAScript private identifier. */\n scanPrivateIdentifier() {\n const start = this.index;\n this.advance();\n if (!isIdentifierStart(this.peek)) {\n return this.error('Invalid character [#]', -1);\n }\n while (isIdentifierPart(this.peek))\n this.advance();\n const identifierName = this.input.substring(start, this.index);\n return newPrivateIdentifierToken(start, this.index, identifierName);\n }\n scanNumber(start) {\n let simple = (this.index === start);\n let hasSeparators = false;\n this.advance(); // Skip initial digit.\n while (true) {\n if (isDigit(this.peek)) {\n // Do nothing.\n }\n else if (this.peek === $_) {\n // Separators are only valid when they're surrounded by digits. E.g. `1_0_1` is\n // valid while `_101` and `101_` are not. The separator can't be next to the decimal\n // point or another separator either. Note that it's unlikely that we'll hit a case where\n // the underscore is at the start, because that's a valid identifier and it will be picked\n // up earlier in the parsing. We validate for it anyway just in case.\n if (!isDigit(this.input.charCodeAt(this.index - 1)) ||\n !isDigit(this.input.charCodeAt(this.index + 1))) {\n return this.error('Invalid numeric separator', 0);\n }\n hasSeparators = true;\n }\n else if (this.peek === $PERIOD) {\n simple = false;\n }\n else if (isExponentStart(this.peek)) {\n this.advance();\n if (isExponentSign(this.peek))\n this.advance();\n if (!isDigit(this.peek))\n return this.error('Invalid exponent', -1);\n simple = false;\n }\n else {\n break;\n }\n this.advance();\n }\n let str = this.input.substring(start, this.index);\n if (hasSeparators) {\n str = str.replace(/_/g, '');\n }\n const value = simple ? parseIntAutoRadix(str) : parseFloat(str);\n return newNumberToken(start, this.index, value);\n }\n scanString() {\n const start = this.index;\n const quote = this.peek;\n this.advance(); // Skip initial quote.\n let buffer = '';\n let marker = this.index;\n const input = this.input;\n while (this.peek != quote) {\n if (this.peek == $BACKSLASH) {\n buffer += input.substring(marker, this.index);\n let unescapedCode;\n this.advance(); // mutates this.peek\n // @ts-expect-error see microsoft/TypeScript#9998\n if (this.peek == $u) {\n // 4 character hex code for unicode character.\n const hex = input.substring(this.index + 1, this.index + 5);\n if (/^[0-9a-f]+$/i.test(hex)) {\n unescapedCode = parseInt(hex, 16);\n }\n else {\n return this.error(`Invalid unicode escape [\\\\u${hex}]`, 0);\n }\n for (let i = 0; i < 5; i++) {\n this.advance();\n }\n }\n else {\n unescapedCode = unescape(this.peek);\n this.advance();\n }\n buffer += String.fromCharCode(unescapedCode);\n marker = this.index;\n }\n else if (this.peek == $EOF) {\n return this.error('Unterminated quote', 0);\n }\n else {\n this.advance();\n }\n }\n const last = input.substring(marker, this.index);\n this.advance(); // Skip terminating quote.\n return newStringToken(start, this.index, buffer + last);\n }\n scanQuestion(start) {\n this.advance();\n let str = '?';\n // Either `a ?? b` or 'a?.b'.\n if (this.peek === $QUESTION || this.peek === $PERIOD) {\n str += this.peek === $PERIOD ? '.' : '?';\n this.advance();\n }\n return newOperatorToken(start, this.index, str);\n }\n error(message, offset) {\n const position = this.index + offset;\n return newErrorToken(position, this.index, `Lexer Error: ${message} at column ${position} in expression [${this.input}]`);\n }\n}\nfunction isIdentifierStart(code) {\n return ($a <= code && code <= $z) || ($A <= code && code <= $Z) ||\n (code == $_) || (code == $$);\n}\nfunction isIdentifier(input) {\n if (input.length == 0)\n return false;\n const scanner = new _Scanner(input);\n if (!isIdentifierStart(scanner.peek))\n return false;\n scanner.advance();\n while (scanner.peek !== $EOF) {\n if (!isIdentifierPart(scanner.peek))\n return false;\n scanner.advance();\n }\n return true;\n}\nfunction isIdentifierPart(code) {\n return isAsciiLetter(code) || isDigit(code) || (code == $_) ||\n (code == $$);\n}\nfunction isExponentStart(code) {\n return code == $e || code == $E;\n}\nfunction isExponentSign(code) {\n return code == $MINUS || code == $PLUS;\n}\nfunction unescape(code) {\n switch (code) {\n case $n:\n return $LF;\n case $f:\n return $FF;\n case $r:\n return $CR;\n case $t:\n return $TAB;\n case $v:\n return $VTAB;\n default:\n return code;\n }\n}\nfunction parseIntAutoRadix(text) {\n const result = parseInt(text);\n if (isNaN(result)) {\n throw new Error('Invalid integer literal when parsing ' + text);\n }\n return result;\n}\n\nclass SplitInterpolation {\n constructor(strings, expressions, offsets) {\n this.strings = strings;\n this.expressions = expressions;\n this.offsets = offsets;\n }\n}\nclass TemplateBindingParseResult {\n constructor(templateBindings, warnings, errors) {\n this.templateBindings = templateBindings;\n this.warnings = warnings;\n this.errors = errors;\n }\n}\nclass Parser$1 {\n constructor(_lexer) {\n this._lexer = _lexer;\n this.errors = [];\n }\n parseAction(input, isAssignmentEvent, location, absoluteOffset, interpolationConfig = DEFAULT_INTERPOLATION_CONFIG) {\n this._checkNoInterpolation(input, location, interpolationConfig);\n const sourceToLex = this._stripComments(input);\n const tokens = this._lexer.tokenize(sourceToLex);\n let flags = 1 /* ParseFlags.Action */;\n if (isAssignmentEvent) {\n flags |= 2 /* ParseFlags.AssignmentEvent */;\n }\n const ast = new _ParseAST(input, location, absoluteOffset, tokens, flags, this.errors, 0).parseChain();\n return new ASTWithSource(ast, input, location, absoluteOffset, this.errors);\n }\n parseBinding(input, location, absoluteOffset, interpolationConfig = DEFAULT_INTERPOLATION_CONFIG) {\n const ast = this._parseBindingAst(input, location, absoluteOffset, interpolationConfig);\n return new ASTWithSource(ast, input, location, absoluteOffset, this.errors);\n }\n checkSimpleExpression(ast) {\n const checker = new SimpleExpressionChecker();\n ast.visit(checker);\n return checker.errors;\n }\n parseSimpleBinding(input, location, absoluteOffset, interpolationConfig = DEFAULT_INTERPOLATION_CONFIG) {\n const ast = this._parseBindingAst(input, location, absoluteOffset, interpolationConfig);\n const errors = this.checkSimpleExpression(ast);\n if (errors.length > 0) {\n this._reportError(`Host binding expression cannot contain ${errors.join(' ')}`, input, location);\n }\n return new ASTWithSource(ast, input, location, absoluteOffset, this.errors);\n }\n _reportError(message, input, errLocation, ctxLocation) {\n this.errors.push(new ParserError(message, input, errLocation, ctxLocation));\n }\n _parseBindingAst(input, location, absoluteOffset, interpolationConfig) {\n this._checkNoInterpolation(input, location, interpolationConfig);\n const sourceToLex = this._stripComments(input);\n const tokens = this._lexer.tokenize(sourceToLex);\n return new _ParseAST(input, location, absoluteOffset, tokens, 0 /* ParseFlags.None */, this.errors, 0)\n .parseChain();\n }\n /**\n * Parse microsyntax template expression and return a list of bindings or\n * parsing errors in case the given expression is invalid.\n *\n * For example,\n * ```\n *
\n * ^ ^ absoluteValueOffset for `templateValue`\n * absoluteKeyOffset for `templateKey`\n * ```\n * contains three bindings:\n * 1. ngFor -> null\n * 2. item -> NgForOfContext.$implicit\n * 3. ngForOf -> items\n *\n * This is apparent from the de-sugared template:\n * ```\n *
\n * ```\n *\n * @param templateKey name of directive, without the * prefix. For example: ngIf, ngFor\n * @param templateValue RHS of the microsyntax attribute\n * @param templateUrl template filename if it's external, component filename if it's inline\n * @param absoluteKeyOffset start of the `templateKey`\n * @param absoluteValueOffset start of the `templateValue`\n */\n parseTemplateBindings(templateKey, templateValue, templateUrl, absoluteKeyOffset, absoluteValueOffset) {\n const tokens = this._lexer.tokenize(templateValue);\n const parser = new _ParseAST(templateValue, templateUrl, absoluteValueOffset, tokens, 0 /* ParseFlags.None */, this.errors, 0 /* relative offset */);\n return parser.parseTemplateBindings({\n source: templateKey,\n span: new AbsoluteSourceSpan(absoluteKeyOffset, absoluteKeyOffset + templateKey.length),\n });\n }\n parseInterpolation(input, location, absoluteOffset, interpolatedTokens, interpolationConfig = DEFAULT_INTERPOLATION_CONFIG) {\n const { strings, expressions, offsets } = this.splitInterpolation(input, location, interpolatedTokens, interpolationConfig);\n if (expressions.length === 0)\n return null;\n const expressionNodes = [];\n for (let i = 0; i < expressions.length; ++i) {\n const expressionText = expressions[i].text;\n const sourceToLex = this._stripComments(expressionText);\n const tokens = this._lexer.tokenize(sourceToLex);\n const ast = new _ParseAST(input, location, absoluteOffset, tokens, 0 /* ParseFlags.None */, this.errors, offsets[i])\n .parseChain();\n expressionNodes.push(ast);\n }\n return this.createInterpolationAst(strings.map(s => s.text), expressionNodes, input, location, absoluteOffset);\n }\n /**\n * Similar to `parseInterpolation`, but treats the provided string as a single expression\n * element that would normally appear within the interpolation prefix and suffix (`{{` and `}}`).\n * This is used for parsing the switch expression in ICUs.\n */\n parseInterpolationExpression(expression, location, absoluteOffset) {\n const sourceToLex = this._stripComments(expression);\n const tokens = this._lexer.tokenize(sourceToLex);\n const ast = new _ParseAST(expression, location, absoluteOffset, tokens, 0 /* ParseFlags.None */, this.errors, 0)\n .parseChain();\n const strings = ['', '']; // The prefix and suffix strings are both empty\n return this.createInterpolationAst(strings, [ast], expression, location, absoluteOffset);\n }\n createInterpolationAst(strings, expressions, input, location, absoluteOffset) {\n const span = new ParseSpan(0, input.length);\n const interpolation = new Interpolation(span, span.toAbsolute(absoluteOffset), strings, expressions);\n return new ASTWithSource(interpolation, input, location, absoluteOffset, this.errors);\n }\n /**\n * Splits a string of text into \"raw\" text segments and expressions present in interpolations in\n * the string.\n * Returns `null` if there are no interpolations, otherwise a\n * `SplitInterpolation` with splits that look like\n * ... \n */\n splitInterpolation(input, location, interpolatedTokens, interpolationConfig = DEFAULT_INTERPOLATION_CONFIG) {\n const strings = [];\n const expressions = [];\n const offsets = [];\n const inputToTemplateIndexMap = interpolatedTokens ? getIndexMapForOriginalTemplate(interpolatedTokens) : null;\n let i = 0;\n let atInterpolation = false;\n let extendLastString = false;\n let { start: interpStart, end: interpEnd } = interpolationConfig;\n while (i < input.length) {\n if (!atInterpolation) {\n // parse until starting {{\n const start = i;\n i = input.indexOf(interpStart, i);\n if (i === -1) {\n i = input.length;\n }\n const text = input.substring(start, i);\n strings.push({ text, start, end: i });\n atInterpolation = true;\n }\n else {\n // parse from starting {{ to ending }} while ignoring content inside quotes.\n const fullStart = i;\n const exprStart = fullStart + interpStart.length;\n const exprEnd = this._getInterpolationEndIndex(input, interpEnd, exprStart);\n if (exprEnd === -1) {\n // Could not find the end of the interpolation; do not parse an expression.\n // Instead we should extend the content on the last raw string.\n atInterpolation = false;\n extendLastString = true;\n break;\n }\n const fullEnd = exprEnd + interpEnd.length;\n const text = input.substring(exprStart, exprEnd);\n if (text.trim().length === 0) {\n this._reportError('Blank expressions are not allowed in interpolated strings', input, `at column ${i} in`, location);\n }\n expressions.push({ text, start: fullStart, end: fullEnd });\n const startInOriginalTemplate = inputToTemplateIndexMap?.get(fullStart) ?? fullStart;\n const offset = startInOriginalTemplate + interpStart.length;\n offsets.push(offset);\n i = fullEnd;\n atInterpolation = false;\n }\n }\n if (!atInterpolation) {\n // If we are now at a text section, add the remaining content as a raw string.\n if (extendLastString) {\n const piece = strings[strings.length - 1];\n piece.text += input.substring(i);\n piece.end = input.length;\n }\n else {\n strings.push({ text: input.substring(i), start: i, end: input.length });\n }\n }\n return new SplitInterpolation(strings, expressions, offsets);\n }\n wrapLiteralPrimitive(input, location, absoluteOffset) {\n const span = new ParseSpan(0, input == null ? 0 : input.length);\n return new ASTWithSource(new LiteralPrimitive(span, span.toAbsolute(absoluteOffset), input), input, location, absoluteOffset, this.errors);\n }\n _stripComments(input) {\n const i = this._commentStart(input);\n return i != null ? input.substring(0, i) : input;\n }\n _commentStart(input) {\n let outerQuote = null;\n for (let i = 0; i < input.length - 1; i++) {\n const char = input.charCodeAt(i);\n const nextChar = input.charCodeAt(i + 1);\n if (char === $SLASH && nextChar == $SLASH && outerQuote == null)\n return i;\n if (outerQuote === char) {\n outerQuote = null;\n }\n else if (outerQuote == null && isQuote(char)) {\n outerQuote = char;\n }\n }\n return null;\n }\n _checkNoInterpolation(input, location, { start, end }) {\n let startIndex = -1;\n let endIndex = -1;\n for (const charIndex of this._forEachUnquotedChar(input, 0)) {\n if (startIndex === -1) {\n if (input.startsWith(start)) {\n startIndex = charIndex;\n }\n }\n else {\n endIndex = this._getInterpolationEndIndex(input, end, charIndex);\n if (endIndex > -1) {\n break;\n }\n }\n }\n if (startIndex > -1 && endIndex > -1) {\n this._reportError(`Got interpolation (${start}${end}) where expression was expected`, input, `at column ${startIndex} in`, location);\n }\n }\n /**\n * Finds the index of the end of an interpolation expression\n * while ignoring comments and quoted content.\n */\n _getInterpolationEndIndex(input, expressionEnd, start) {\n for (const charIndex of this._forEachUnquotedChar(input, start)) {\n if (input.startsWith(expressionEnd, charIndex)) {\n return charIndex;\n }\n // Nothing else in the expression matters after we've\n // hit a comment so look directly for the end token.\n if (input.startsWith('//', charIndex)) {\n return input.indexOf(expressionEnd, charIndex);\n }\n }\n return -1;\n }\n /**\n * Generator used to iterate over the character indexes of a string that are outside of quotes.\n * @param input String to loop through.\n * @param start Index within the string at which to start.\n */\n *_forEachUnquotedChar(input, start) {\n let currentQuote = null;\n let escapeCount = 0;\n for (let i = start; i < input.length; i++) {\n const char = input[i];\n // Skip the characters inside quotes. Note that we only care about the outer-most\n // quotes matching up and we need to account for escape characters.\n if (isQuote(input.charCodeAt(i)) && (currentQuote === null || currentQuote === char) &&\n escapeCount % 2 === 0) {\n currentQuote = currentQuote === null ? char : null;\n }\n else if (currentQuote === null) {\n yield i;\n }\n escapeCount = char === '\\\\' ? escapeCount + 1 : 0;\n }\n }\n}\n/** Describes a stateful context an expression parser is in. */\nvar ParseContextFlags;\n(function (ParseContextFlags) {\n ParseContextFlags[ParseContextFlags[\"None\"] = 0] = \"None\";\n /**\n * A Writable context is one in which a value may be written to an lvalue.\n * For example, after we see a property access, we may expect a write to the\n * property via the \"=\" operator.\n * prop\n * ^ possible \"=\" after\n */\n ParseContextFlags[ParseContextFlags[\"Writable\"] = 1] = \"Writable\";\n})(ParseContextFlags || (ParseContextFlags = {}));\nclass _ParseAST {\n constructor(input, location, absoluteOffset, tokens, parseFlags, errors, offset) {\n this.input = input;\n this.location = location;\n this.absoluteOffset = absoluteOffset;\n this.tokens = tokens;\n this.parseFlags = parseFlags;\n this.errors = errors;\n this.offset = offset;\n this.rparensExpected = 0;\n this.rbracketsExpected = 0;\n this.rbracesExpected = 0;\n this.context = ParseContextFlags.None;\n // Cache of expression start and input indeces to the absolute source span they map to, used to\n // prevent creating superfluous source spans in `sourceSpan`.\n // A serial of the expression start and input index is used for mapping because both are stateful\n // and may change for subsequent expressions visited by the parser.\n this.sourceSpanCache = new Map();\n this.index = 0;\n }\n peek(offset) {\n const i = this.index + offset;\n return i < this.tokens.length ? this.tokens[i] : EOF;\n }\n get next() {\n return this.peek(0);\n }\n /** Whether all the parser input has been processed. */\n get atEOF() {\n return this.index >= this.tokens.length;\n }\n /**\n * Index of the next token to be processed, or the end of the last token if all have been\n * processed.\n */\n get inputIndex() {\n return this.atEOF ? this.currentEndIndex : this.next.index + this.offset;\n }\n /**\n * End index of the last processed token, or the start of the first token if none have been\n * processed.\n */\n get currentEndIndex() {\n if (this.index > 0) {\n const curToken = this.peek(-1);\n return curToken.end + this.offset;\n }\n // No tokens have been processed yet; return the next token's start or the length of the input\n // if there is no token.\n if (this.tokens.length === 0) {\n return this.input.length + this.offset;\n }\n return this.next.index + this.offset;\n }\n /**\n * Returns the absolute offset of the start of the current token.\n */\n get currentAbsoluteOffset() {\n return this.absoluteOffset + this.inputIndex;\n }\n /**\n * Retrieve a `ParseSpan` from `start` to the current position (or to `artificialEndIndex` if\n * provided).\n *\n * @param start Position from which the `ParseSpan` will start.\n * @param artificialEndIndex Optional ending index to be used if provided (and if greater than the\n * natural ending index)\n */\n span(start, artificialEndIndex) {\n let endIndex = this.currentEndIndex;\n if (artificialEndIndex !== undefined && artificialEndIndex > this.currentEndIndex) {\n endIndex = artificialEndIndex;\n }\n // In some unusual parsing scenarios (like when certain tokens are missing and an `EmptyExpr` is\n // being created), the current token may already be advanced beyond the `currentEndIndex`. This\n // appears to be a deep-seated parser bug.\n //\n // As a workaround for now, swap the start and end indices to ensure a valid `ParseSpan`.\n // TODO(alxhub): fix the bug upstream in the parser state, and remove this workaround.\n if (start > endIndex) {\n const tmp = endIndex;\n endIndex = start;\n start = tmp;\n }\n return new ParseSpan(start, endIndex);\n }\n sourceSpan(start, artificialEndIndex) {\n const serial = `${start}@${this.inputIndex}:${artificialEndIndex}`;\n if (!this.sourceSpanCache.has(serial)) {\n this.sourceSpanCache.set(serial, this.span(start, artificialEndIndex).toAbsolute(this.absoluteOffset));\n }\n return this.sourceSpanCache.get(serial);\n }\n advance() {\n this.index++;\n }\n /**\n * Executes a callback in the provided context.\n */\n withContext(context, cb) {\n this.context |= context;\n const ret = cb();\n this.context ^= context;\n return ret;\n }\n consumeOptionalCharacter(code) {\n if (this.next.isCharacter(code)) {\n this.advance();\n return true;\n }\n else {\n return false;\n }\n }\n peekKeywordLet() {\n return this.next.isKeywordLet();\n }\n peekKeywordAs() {\n return this.next.isKeywordAs();\n }\n /**\n * Consumes an expected character, otherwise emits an error about the missing expected character\n * and skips over the token stream until reaching a recoverable point.\n *\n * See `this.error` and `this.skip` for more details.\n */\n expectCharacter(code) {\n if (this.consumeOptionalCharacter(code))\n return;\n this.error(`Missing expected ${String.fromCharCode(code)}`);\n }\n consumeOptionalOperator(op) {\n if (this.next.isOperator(op)) {\n this.advance();\n return true;\n }\n else {\n return false;\n }\n }\n expectOperator(operator) {\n if (this.consumeOptionalOperator(operator))\n return;\n this.error(`Missing expected operator ${operator}`);\n }\n prettyPrintToken(tok) {\n return tok === EOF ? 'end of input' : `token ${tok}`;\n }\n expectIdentifierOrKeyword() {\n const n = this.next;\n if (!n.isIdentifier() && !n.isKeyword()) {\n if (n.isPrivateIdentifier()) {\n this._reportErrorForPrivateIdentifier(n, 'expected identifier or keyword');\n }\n else {\n this.error(`Unexpected ${this.prettyPrintToken(n)}, expected identifier or keyword`);\n }\n return null;\n }\n this.advance();\n return n.toString();\n }\n expectIdentifierOrKeywordOrString() {\n const n = this.next;\n if (!n.isIdentifier() && !n.isKeyword() && !n.isString()) {\n if (n.isPrivateIdentifier()) {\n this._reportErrorForPrivateIdentifier(n, 'expected identifier, keyword or string');\n }\n else {\n this.error(`Unexpected ${this.prettyPrintToken(n)}, expected identifier, keyword, or string`);\n }\n return '';\n }\n this.advance();\n return n.toString();\n }\n parseChain() {\n const exprs = [];\n const start = this.inputIndex;\n while (this.index < this.tokens.length) {\n const expr = this.parsePipe();\n exprs.push(expr);\n if (this.consumeOptionalCharacter($SEMICOLON)) {\n if (!(this.parseFlags & 1 /* ParseFlags.Action */)) {\n this.error('Binding expression cannot contain chained expression');\n }\n while (this.consumeOptionalCharacter($SEMICOLON)) {\n } // read all semicolons\n }\n else if (this.index < this.tokens.length) {\n const errorIndex = this.index;\n this.error(`Unexpected token '${this.next}'`);\n // The `error` call above will skip ahead to the next recovery point in an attempt to\n // recover part of the expression, but that might be the token we started from which will\n // lead to an infinite loop. If that's the case, break the loop assuming that we can't\n // parse further.\n if (this.index === errorIndex) {\n break;\n }\n }\n }\n if (exprs.length === 0) {\n // We have no expressions so create an empty expression that spans the entire input length\n const artificialStart = this.offset;\n const artificialEnd = this.offset + this.input.length;\n return new EmptyExpr(this.span(artificialStart, artificialEnd), this.sourceSpan(artificialStart, artificialEnd));\n }\n if (exprs.length == 1)\n return exprs[0];\n return new Chain(this.span(start), this.sourceSpan(start), exprs);\n }\n parsePipe() {\n const start = this.inputIndex;\n let result = this.parseExpression();\n if (this.consumeOptionalOperator('|')) {\n if (this.parseFlags & 1 /* ParseFlags.Action */) {\n this.error('Cannot have a pipe in an action expression');\n }\n do {\n const nameStart = this.inputIndex;\n let nameId = this.expectIdentifierOrKeyword();\n let nameSpan;\n let fullSpanEnd = undefined;\n if (nameId !== null) {\n nameSpan = this.sourceSpan(nameStart);\n }\n else {\n // No valid identifier was found, so we'll assume an empty pipe name ('').\n nameId = '';\n // However, there may have been whitespace present between the pipe character and the next\n // token in the sequence (or the end of input). We want to track this whitespace so that\n // the `BindingPipe` we produce covers not just the pipe character, but any trailing\n // whitespace beyond it. Another way of thinking about this is that the zero-length name\n // is assumed to be at the end of any whitespace beyond the pipe character.\n //\n // Therefore, we push the end of the `ParseSpan` for this pipe all the way up to the\n // beginning of the next token, or until the end of input if the next token is EOF.\n fullSpanEnd = this.next.index !== -1 ? this.next.index : this.input.length + this.offset;\n // The `nameSpan` for an empty pipe name is zero-length at the end of any whitespace\n // beyond the pipe character.\n nameSpan = new ParseSpan(fullSpanEnd, fullSpanEnd).toAbsolute(this.absoluteOffset);\n }\n const args = [];\n while (this.consumeOptionalCharacter($COLON)) {\n args.push(this.parseExpression());\n // If there are additional expressions beyond the name, then the artificial end for the\n // name is no longer relevant.\n }\n result = new BindingPipe(this.span(start), this.sourceSpan(start, fullSpanEnd), result, nameId, args, nameSpan);\n } while (this.consumeOptionalOperator('|'));\n }\n return result;\n }\n parseExpression() {\n return this.parseConditional();\n }\n parseConditional() {\n const start = this.inputIndex;\n const result = this.parseLogicalOr();\n if (this.consumeOptionalOperator('?')) {\n const yes = this.parsePipe();\n let no;\n if (!this.consumeOptionalCharacter($COLON)) {\n const end = this.inputIndex;\n const expression = this.input.substring(start, end);\n this.error(`Conditional expression ${expression} requires all 3 expressions`);\n no = new EmptyExpr(this.span(start), this.sourceSpan(start));\n }\n else {\n no = this.parsePipe();\n }\n return new Conditional(this.span(start), this.sourceSpan(start), result, yes, no);\n }\n else {\n return result;\n }\n }\n parseLogicalOr() {\n // '||'\n const start = this.inputIndex;\n let result = this.parseLogicalAnd();\n while (this.consumeOptionalOperator('||')) {\n const right = this.parseLogicalAnd();\n result = new Binary(this.span(start), this.sourceSpan(start), '||', result, right);\n }\n return result;\n }\n parseLogicalAnd() {\n // '&&'\n const start = this.inputIndex;\n let result = this.parseNullishCoalescing();\n while (this.consumeOptionalOperator('&&')) {\n const right = this.parseNullishCoalescing();\n result = new Binary(this.span(start), this.sourceSpan(start), '&&', result, right);\n }\n return result;\n }\n parseNullishCoalescing() {\n // '??'\n const start = this.inputIndex;\n let result = this.parseEquality();\n while (this.consumeOptionalOperator('??')) {\n const right = this.parseEquality();\n result = new Binary(this.span(start), this.sourceSpan(start), '??', result, right);\n }\n return result;\n }\n parseEquality() {\n // '==','!=','===','!=='\n const start = this.inputIndex;\n let result = this.parseRelational();\n while (this.next.type == TokenType.Operator) {\n const operator = this.next.strValue;\n switch (operator) {\n case '==':\n case '===':\n case '!=':\n case '!==':\n this.advance();\n const right = this.parseRelational();\n result = new Binary(this.span(start), this.sourceSpan(start), operator, result, right);\n continue;\n }\n break;\n }\n return result;\n }\n parseRelational() {\n // '<', '>', '<=', '>='\n const start = this.inputIndex;\n let result = this.parseAdditive();\n while (this.next.type == TokenType.Operator) {\n const operator = this.next.strValue;\n switch (operator) {\n case '<':\n case '>':\n case '<=':\n case '>=':\n this.advance();\n const right = this.parseAdditive();\n result = new Binary(this.span(start), this.sourceSpan(start), operator, result, right);\n continue;\n }\n break;\n }\n return result;\n }\n parseAdditive() {\n // '+', '-'\n const start = this.inputIndex;\n let result = this.parseMultiplicative();\n while (this.next.type == TokenType.Operator) {\n const operator = this.next.strValue;\n switch (operator) {\n case '+':\n case '-':\n this.advance();\n let right = this.parseMultiplicative();\n result = new Binary(this.span(start), this.sourceSpan(start), operator, result, right);\n continue;\n }\n break;\n }\n return result;\n }\n parseMultiplicative() {\n // '*', '%', '/'\n const start = this.inputIndex;\n let result = this.parsePrefix();\n while (this.next.type == TokenType.Operator) {\n const operator = this.next.strValue;\n switch (operator) {\n case '*':\n case '%':\n case '/':\n this.advance();\n let right = this.parsePrefix();\n result = new Binary(this.span(start), this.sourceSpan(start), operator, result, right);\n continue;\n }\n break;\n }\n return result;\n }\n parsePrefix() {\n if (this.next.type == TokenType.Operator) {\n const start = this.inputIndex;\n const operator = this.next.strValue;\n let result;\n switch (operator) {\n case '+':\n this.advance();\n result = this.parsePrefix();\n return Unary.createPlus(this.span(start), this.sourceSpan(start), result);\n case '-':\n this.advance();\n result = this.parsePrefix();\n return Unary.createMinus(this.span(start), this.sourceSpan(start), result);\n case '!':\n this.advance();\n result = this.parsePrefix();\n return new PrefixNot(this.span(start), this.sourceSpan(start), result);\n }\n }\n return this.parseCallChain();\n }\n parseCallChain() {\n const start = this.inputIndex;\n let result = this.parsePrimary();\n while (true) {\n if (this.consumeOptionalCharacter($PERIOD)) {\n result = this.parseAccessMember(result, start, false);\n }\n else if (this.consumeOptionalOperator('?.')) {\n if (this.consumeOptionalCharacter($LPAREN)) {\n result = this.parseCall(result, start, true);\n }\n else {\n result = this.consumeOptionalCharacter($LBRACKET) ?\n this.parseKeyedReadOrWrite(result, start, true) :\n this.parseAccessMember(result, start, true);\n }\n }\n else if (this.consumeOptionalCharacter($LBRACKET)) {\n result = this.parseKeyedReadOrWrite(result, start, false);\n }\n else if (this.consumeOptionalCharacter($LPAREN)) {\n result = this.parseCall(result, start, false);\n }\n else if (this.consumeOptionalOperator('!')) {\n result = new NonNullAssert(this.span(start), this.sourceSpan(start), result);\n }\n else {\n return result;\n }\n }\n }\n parsePrimary() {\n const start = this.inputIndex;\n if (this.consumeOptionalCharacter($LPAREN)) {\n this.rparensExpected++;\n const result = this.parsePipe();\n this.rparensExpected--;\n this.expectCharacter($RPAREN);\n return result;\n }\n else if (this.next.isKeywordNull()) {\n this.advance();\n return new LiteralPrimitive(this.span(start), this.sourceSpan(start), null);\n }\n else if (this.next.isKeywordUndefined()) {\n this.advance();\n return new LiteralPrimitive(this.span(start), this.sourceSpan(start), void 0);\n }\n else if (this.next.isKeywordTrue()) {\n this.advance();\n return new LiteralPrimitive(this.span(start), this.sourceSpan(start), true);\n }\n else if (this.next.isKeywordFalse()) {\n this.advance();\n return new LiteralPrimitive(this.span(start), this.sourceSpan(start), false);\n }\n else if (this.next.isKeywordThis()) {\n this.advance();\n return new ThisReceiver(this.span(start), this.sourceSpan(start));\n }\n else if (this.consumeOptionalCharacter($LBRACKET)) {\n this.rbracketsExpected++;\n const elements = this.parseExpressionList($RBRACKET);\n this.rbracketsExpected--;\n this.expectCharacter($RBRACKET);\n return new LiteralArray(this.span(start), this.sourceSpan(start), elements);\n }\n else if (this.next.isCharacter($LBRACE)) {\n return this.parseLiteralMap();\n }\n else if (this.next.isIdentifier()) {\n return this.parseAccessMember(new ImplicitReceiver(this.span(start), this.sourceSpan(start)), start, false);\n }\n else if (this.next.isNumber()) {\n const value = this.next.toNumber();\n this.advance();\n return new LiteralPrimitive(this.span(start), this.sourceSpan(start), value);\n }\n else if (this.next.isString()) {\n const literalValue = this.next.toString();\n this.advance();\n return new LiteralPrimitive(this.span(start), this.sourceSpan(start), literalValue);\n }\n else if (this.next.isPrivateIdentifier()) {\n this._reportErrorForPrivateIdentifier(this.next, null);\n return new EmptyExpr(this.span(start), this.sourceSpan(start));\n }\n else if (this.index >= this.tokens.length) {\n this.error(`Unexpected end of expression: ${this.input}`);\n return new EmptyExpr(this.span(start), this.sourceSpan(start));\n }\n else {\n this.error(`Unexpected token ${this.next}`);\n return new EmptyExpr(this.span(start), this.sourceSpan(start));\n }\n }\n parseExpressionList(terminator) {\n const result = [];\n do {\n if (!this.next.isCharacter(terminator)) {\n result.push(this.parsePipe());\n }\n else {\n break;\n }\n } while (this.consumeOptionalCharacter($COMMA));\n return result;\n }\n parseLiteralMap() {\n const keys = [];\n const values = [];\n const start = this.inputIndex;\n this.expectCharacter($LBRACE);\n if (!this.consumeOptionalCharacter($RBRACE)) {\n this.rbracesExpected++;\n do {\n const keyStart = this.inputIndex;\n const quoted = this.next.isString();\n const key = this.expectIdentifierOrKeywordOrString();\n keys.push({ key, quoted });\n // Properties with quoted keys can't use the shorthand syntax.\n if (quoted) {\n this.expectCharacter($COLON);\n values.push(this.parsePipe());\n }\n else if (this.consumeOptionalCharacter($COLON)) {\n values.push(this.parsePipe());\n }\n else {\n const span = this.span(keyStart);\n const sourceSpan = this.sourceSpan(keyStart);\n values.push(new PropertyRead(span, sourceSpan, sourceSpan, new ImplicitReceiver(span, sourceSpan), key));\n }\n } while (this.consumeOptionalCharacter($COMMA) &&\n !this.next.isCharacter($RBRACE));\n this.rbracesExpected--;\n this.expectCharacter($RBRACE);\n }\n return new LiteralMap(this.span(start), this.sourceSpan(start), keys, values);\n }\n parseAccessMember(readReceiver, start, isSafe) {\n const nameStart = this.inputIndex;\n const id = this.withContext(ParseContextFlags.Writable, () => {\n const id = this.expectIdentifierOrKeyword() ?? '';\n if (id.length === 0) {\n this.error(`Expected identifier for property access`, readReceiver.span.end);\n }\n return id;\n });\n const nameSpan = this.sourceSpan(nameStart);\n let receiver;\n if (isSafe) {\n if (this.consumeOptionalAssignment()) {\n this.error('The \\'?.\\' operator cannot be used in the assignment');\n receiver = new EmptyExpr(this.span(start), this.sourceSpan(start));\n }\n else {\n receiver = new SafePropertyRead(this.span(start), this.sourceSpan(start), nameSpan, readReceiver, id);\n }\n }\n else {\n if (this.consumeOptionalAssignment()) {\n if (!(this.parseFlags & 1 /* ParseFlags.Action */)) {\n this.error('Bindings cannot contain assignments');\n return new EmptyExpr(this.span(start), this.sourceSpan(start));\n }\n const value = this.parseConditional();\n receiver = new PropertyWrite(this.span(start), this.sourceSpan(start), nameSpan, readReceiver, id, value);\n }\n else {\n receiver =\n new PropertyRead(this.span(start), this.sourceSpan(start), nameSpan, readReceiver, id);\n }\n }\n return receiver;\n }\n parseCall(receiver, start, isSafe) {\n const argumentStart = this.inputIndex;\n this.rparensExpected++;\n const args = this.parseCallArguments();\n const argumentSpan = this.span(argumentStart, this.inputIndex).toAbsolute(this.absoluteOffset);\n this.expectCharacter($RPAREN);\n this.rparensExpected--;\n const span = this.span(start);\n const sourceSpan = this.sourceSpan(start);\n return isSafe ? new SafeCall(span, sourceSpan, receiver, args, argumentSpan) :\n new Call(span, sourceSpan, receiver, args, argumentSpan);\n }\n consumeOptionalAssignment() {\n // When parsing assignment events (originating from two-way-binding aka banana-in-a-box syntax),\n // it is valid for the primary expression to be terminated by the non-null operator. This\n // primary expression is substituted as LHS of the assignment operator to achieve\n // two-way-binding, such that the LHS could be the non-null operator. The grammar doesn't\n // naturally allow for this syntax, so assignment events are parsed specially.\n if ((this.parseFlags & 2 /* ParseFlags.AssignmentEvent */) && this.next.isOperator('!') &&\n this.peek(1).isOperator('=')) {\n // First skip over the ! operator.\n this.advance();\n // Then skip over the = operator, to fully consume the optional assignment operator.\n this.advance();\n return true;\n }\n return this.consumeOptionalOperator('=');\n }\n parseCallArguments() {\n if (this.next.isCharacter($RPAREN))\n return [];\n const positionals = [];\n do {\n positionals.push(this.parsePipe());\n } while (this.consumeOptionalCharacter($COMMA));\n return positionals;\n }\n /**\n * Parses an identifier, a keyword, a string with an optional `-` in between,\n * and returns the string along with its absolute source span.\n */\n expectTemplateBindingKey() {\n let result = '';\n let operatorFound = false;\n const start = this.currentAbsoluteOffset;\n do {\n result += this.expectIdentifierOrKeywordOrString();\n operatorFound = this.consumeOptionalOperator('-');\n if (operatorFound) {\n result += '-';\n }\n } while (operatorFound);\n return {\n source: result,\n span: new AbsoluteSourceSpan(start, start + result.length),\n };\n }\n /**\n * Parse microsyntax template expression and return a list of bindings or\n * parsing errors in case the given expression is invalid.\n *\n * For example,\n * ```\n * \n * ```\n * contains five bindings:\n * 1. ngFor -> null\n * 2. item -> NgForOfContext.$implicit\n * 3. ngForOf -> items\n * 4. i -> NgForOfContext.index\n * 5. ngForTrackBy -> func\n *\n * For a full description of the microsyntax grammar, see\n * https://gist.github.com/mhevery/d3530294cff2e4a1b3fe15ff75d08855\n *\n * @param templateKey name of the microsyntax directive, like ngIf, ngFor,\n * without the *, along with its absolute span.\n */\n parseTemplateBindings(templateKey) {\n const bindings = [];\n // The first binding is for the template key itself\n // In *ngFor=\"let item of items\", key = \"ngFor\", value = null\n // In *ngIf=\"cond | pipe\", key = \"ngIf\", value = \"cond | pipe\"\n bindings.push(...this.parseDirectiveKeywordBindings(templateKey));\n while (this.index < this.tokens.length) {\n // If it starts with 'let', then this must be variable declaration\n const letBinding = this.parseLetBinding();\n if (letBinding) {\n bindings.push(letBinding);\n }\n else {\n // Two possible cases here, either `value \"as\" key` or\n // \"directive-keyword expression\". We don't know which case, but both\n // \"value\" and \"directive-keyword\" are template binding key, so consume\n // the key first.\n const key = this.expectTemplateBindingKey();\n // Peek at the next token, if it is \"as\" then this must be variable\n // declaration.\n const binding = this.parseAsBinding(key);\n if (binding) {\n bindings.push(binding);\n }\n else {\n // Otherwise the key must be a directive keyword, like \"of\". Transform\n // the key to actual key. Eg. of -> ngForOf, trackBy -> ngForTrackBy\n key.source =\n templateKey.source + key.source.charAt(0).toUpperCase() + key.source.substring(1);\n bindings.push(...this.parseDirectiveKeywordBindings(key));\n }\n }\n this.consumeStatementTerminator();\n }\n return new TemplateBindingParseResult(bindings, [] /* warnings */, this.errors);\n }\n parseKeyedReadOrWrite(receiver, start, isSafe) {\n return this.withContext(ParseContextFlags.Writable, () => {\n this.rbracketsExpected++;\n const key = this.parsePipe();\n if (key instanceof EmptyExpr) {\n this.error(`Key access cannot be empty`);\n }\n this.rbracketsExpected--;\n this.expectCharacter($RBRACKET);\n if (this.consumeOptionalOperator('=')) {\n if (isSafe) {\n this.error('The \\'?.\\' operator cannot be used in the assignment');\n }\n else {\n const value = this.parseConditional();\n return new KeyedWrite(this.span(start), this.sourceSpan(start), receiver, key, value);\n }\n }\n else {\n return isSafe ? new SafeKeyedRead(this.span(start), this.sourceSpan(start), receiver, key) :\n new KeyedRead(this.span(start), this.sourceSpan(start), receiver, key);\n }\n return new EmptyExpr(this.span(start), this.sourceSpan(start));\n });\n }\n /**\n * Parse a directive keyword, followed by a mandatory expression.\n * For example, \"of items\", \"trackBy: func\".\n * The bindings are: ngForOf -> items, ngForTrackBy -> func\n * There could be an optional \"as\" binding that follows the expression.\n * For example,\n * ```\n * *ngFor=\"let item of items | slice:0:1 as collection\".\n * ^^ ^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^\n * keyword bound target optional 'as' binding\n * ```\n *\n * @param key binding key, for example, ngFor, ngIf, ngForOf, along with its\n * absolute span.\n */\n parseDirectiveKeywordBindings(key) {\n const bindings = [];\n this.consumeOptionalCharacter($COLON); // trackBy: trackByFunction\n const value = this.getDirectiveBoundTarget();\n let spanEnd = this.currentAbsoluteOffset;\n // The binding could optionally be followed by \"as\". For example,\n // *ngIf=\"cond | pipe as x\". In this case, the key in the \"as\" binding\n // is \"x\" and the value is the template key itself (\"ngIf\"). Note that the\n // 'key' in the current context now becomes the \"value\" in the next binding.\n const asBinding = this.parseAsBinding(key);\n if (!asBinding) {\n this.consumeStatementTerminator();\n spanEnd = this.currentAbsoluteOffset;\n }\n const sourceSpan = new AbsoluteSourceSpan(key.span.start, spanEnd);\n bindings.push(new ExpressionBinding(sourceSpan, key, value));\n if (asBinding) {\n bindings.push(asBinding);\n }\n return bindings;\n }\n /**\n * Return the expression AST for the bound target of a directive keyword\n * binding. For example,\n * ```\n * *ngIf=\"condition | pipe\"\n * ^^^^^^^^^^^^^^^^ bound target for \"ngIf\"\n * *ngFor=\"let item of items\"\n * ^^^^^ bound target for \"ngForOf\"\n * ```\n */\n getDirectiveBoundTarget() {\n if (this.next === EOF || this.peekKeywordAs() || this.peekKeywordLet()) {\n return null;\n }\n const ast = this.parsePipe(); // example: \"condition | async\"\n const { start, end } = ast.span;\n const value = this.input.substring(start, end);\n return new ASTWithSource(ast, value, this.location, this.absoluteOffset + start, this.errors);\n }\n /**\n * Return the binding for a variable declared using `as`. Note that the order\n * of the key-value pair in this declaration is reversed. For example,\n * ```\n * *ngFor=\"let item of items; index as i\"\n * ^^^^^ ^\n * value key\n * ```\n *\n * @param value name of the value in the declaration, \"ngIf\" in the example\n * above, along with its absolute span.\n */\n parseAsBinding(value) {\n if (!this.peekKeywordAs()) {\n return null;\n }\n this.advance(); // consume the 'as' keyword\n const key = this.expectTemplateBindingKey();\n this.consumeStatementTerminator();\n const sourceSpan = new AbsoluteSourceSpan(value.span.start, this.currentAbsoluteOffset);\n return new VariableBinding(sourceSpan, key, value);\n }\n /**\n * Return the binding for a variable declared using `let`. For example,\n * ```\n * *ngFor=\"let item of items; let i=index;\"\n * ^^^^^^^^ ^^^^^^^^^^^\n * ```\n * In the first binding, `item` is bound to `NgForOfContext.$implicit`.\n * In the second binding, `i` is bound to `NgForOfContext.index`.\n */\n parseLetBinding() {\n if (!this.peekKeywordLet()) {\n return null;\n }\n const spanStart = this.currentAbsoluteOffset;\n this.advance(); // consume the 'let' keyword\n const key = this.expectTemplateBindingKey();\n let value = null;\n if (this.consumeOptionalOperator('=')) {\n value = this.expectTemplateBindingKey();\n }\n this.consumeStatementTerminator();\n const sourceSpan = new AbsoluteSourceSpan(spanStart, this.currentAbsoluteOffset);\n return new VariableBinding(sourceSpan, key, value);\n }\n /**\n * Consume the optional statement terminator: semicolon or comma.\n */\n consumeStatementTerminator() {\n this.consumeOptionalCharacter($SEMICOLON) || this.consumeOptionalCharacter($COMMA);\n }\n /**\n * Records an error and skips over the token stream until reaching a recoverable point. See\n * `this.skip` for more details on token skipping.\n */\n error(message, index = null) {\n this.errors.push(new ParserError(message, this.input, this.locationText(index), this.location));\n this.skip();\n }\n locationText(index = null) {\n if (index == null)\n index = this.index;\n return (index < this.tokens.length) ? `at column ${this.tokens[index].index + 1} in` :\n `at the end of the expression`;\n }\n /**\n * Records an error for an unexpected private identifier being discovered.\n * @param token Token representing a private identifier.\n * @param extraMessage Optional additional message being appended to the error.\n */\n _reportErrorForPrivateIdentifier(token, extraMessage) {\n let errorMessage = `Private identifiers are not supported. Unexpected private identifier: ${token}`;\n if (extraMessage !== null) {\n errorMessage += `, ${extraMessage}`;\n }\n this.error(errorMessage);\n }\n /**\n * Error recovery should skip tokens until it encounters a recovery point.\n *\n * The following are treated as unconditional recovery points:\n * - end of input\n * - ';' (parseChain() is always the root production, and it expects a ';')\n * - '|' (since pipes may be chained and each pipe expression may be treated independently)\n *\n * The following are conditional recovery points:\n * - ')', '}', ']' if one of calling productions is expecting one of these symbols\n * - This allows skip() to recover from errors such as '(a.) + 1' allowing more of the AST to\n * be retained (it doesn't skip any tokens as the ')' is retained because of the '(' begins\n * an '('
')' production).\n * The recovery points of grouping symbols must be conditional as they must be skipped if\n * none of the calling productions are not expecting the closing token else we will never\n * make progress in the case of an extraneous group closing symbol (such as a stray ')').\n * That is, we skip a closing symbol if we are not in a grouping production.\n * - '=' in a `Writable` context\n * - In this context, we are able to recover after seeing the `=` operator, which\n * signals the presence of an independent rvalue expression following the `=` operator.\n *\n * If a production expects one of these token it increments the corresponding nesting count,\n * and then decrements it just prior to checking if the token is in the input.\n */\n skip() {\n let n = this.next;\n while (this.index < this.tokens.length && !n.isCharacter($SEMICOLON) &&\n !n.isOperator('|') && (this.rparensExpected <= 0 || !n.isCharacter($RPAREN)) &&\n (this.rbracesExpected <= 0 || !n.isCharacter($RBRACE)) &&\n (this.rbracketsExpected <= 0 || !n.isCharacter($RBRACKET)) &&\n (!(this.context & ParseContextFlags.Writable) || !n.isOperator('='))) {\n if (this.next.isError()) {\n this.errors.push(new ParserError(this.next.toString(), this.input, this.locationText(), this.location));\n }\n this.advance();\n n = this.next;\n }\n }\n}\nclass SimpleExpressionChecker extends RecursiveAstVisitor {\n constructor() {\n super(...arguments);\n this.errors = [];\n }\n visitPipe() {\n this.errors.push('pipes');\n }\n}\n/**\n * Computes the real offset in the original template for indexes in an interpolation.\n *\n * Because templates can have encoded HTML entities and the input passed to the parser at this stage\n * of the compiler is the _decoded_ value, we need to compute the real offset using the original\n * encoded values in the interpolated tokens. Note that this is only a special case handling for\n * `MlParserTokenType.ENCODED_ENTITY` token types. All other interpolated tokens are expected to\n * have parts which exactly match the input string for parsing the interpolation.\n *\n * @param interpolatedTokens The tokens for the interpolated value.\n *\n * @returns A map of index locations in the decoded template to indexes in the original template\n */\nfunction getIndexMapForOriginalTemplate(interpolatedTokens) {\n let offsetMap = new Map();\n let consumedInOriginalTemplate = 0;\n let consumedInInput = 0;\n let tokenIndex = 0;\n while (tokenIndex < interpolatedTokens.length) {\n const currentToken = interpolatedTokens[tokenIndex];\n if (currentToken.type === 9 /* MlParserTokenType.ENCODED_ENTITY */) {\n const [decoded, encoded] = currentToken.parts;\n consumedInOriginalTemplate += encoded.length;\n consumedInInput += decoded.length;\n }\n else {\n const lengthOfParts = currentToken.parts.reduce((sum, current) => sum + current.length, 0);\n consumedInInput += lengthOfParts;\n consumedInOriginalTemplate += lengthOfParts;\n }\n offsetMap.set(consumedInInput, consumedInOriginalTemplate);\n tokenIndex++;\n }\n return offsetMap;\n}\n\nclass NodeWithI18n {\n constructor(sourceSpan, i18n) {\n this.sourceSpan = sourceSpan;\n this.i18n = i18n;\n }\n}\nclass Text extends NodeWithI18n {\n constructor(value, sourceSpan, tokens, i18n) {\n super(sourceSpan, i18n);\n this.value = value;\n this.tokens = tokens;\n }\n visit(visitor, context) {\n return visitor.visitText(this, context);\n }\n}\nclass Expansion extends NodeWithI18n {\n constructor(switchValue, type, cases, sourceSpan, switchValueSourceSpan, i18n) {\n super(sourceSpan, i18n);\n this.switchValue = switchValue;\n this.type = type;\n this.cases = cases;\n this.switchValueSourceSpan = switchValueSourceSpan;\n }\n visit(visitor, context) {\n return visitor.visitExpansion(this, context);\n }\n}\nclass ExpansionCase {\n constructor(value, expression, sourceSpan, valueSourceSpan, expSourceSpan) {\n this.value = value;\n this.expression = expression;\n this.sourceSpan = sourceSpan;\n this.valueSourceSpan = valueSourceSpan;\n this.expSourceSpan = expSourceSpan;\n }\n visit(visitor, context) {\n return visitor.visitExpansionCase(this, context);\n }\n}\nclass Attribute extends NodeWithI18n {\n constructor(name, value, sourceSpan, keySpan, valueSpan, valueTokens, i18n) {\n super(sourceSpan, i18n);\n this.name = name;\n this.value = value;\n this.keySpan = keySpan;\n this.valueSpan = valueSpan;\n this.valueTokens = valueTokens;\n }\n visit(visitor, context) {\n return visitor.visitAttribute(this, context);\n }\n}\nclass Element extends NodeWithI18n {\n constructor(name, attrs, children, sourceSpan, startSourceSpan, endSourceSpan = null, i18n) {\n super(sourceSpan, i18n);\n this.name = name;\n this.attrs = attrs;\n this.children = children;\n this.startSourceSpan = startSourceSpan;\n this.endSourceSpan = endSourceSpan;\n }\n visit(visitor, context) {\n return visitor.visitElement(this, context);\n }\n}\nclass Comment {\n constructor(value, sourceSpan) {\n this.value = value;\n this.sourceSpan = sourceSpan;\n }\n visit(visitor, context) {\n return visitor.visitComment(this, context);\n }\n}\nfunction visitAll(visitor, nodes, context = null) {\n const result = [];\n const visit = visitor.visit ?\n (ast) => visitor.visit(ast, context) || ast.visit(visitor, context) :\n (ast) => ast.visit(visitor, context);\n nodes.forEach(ast => {\n const astResult = visit(ast);\n if (astResult) {\n result.push(astResult);\n }\n });\n return result;\n}\nclass RecursiveVisitor {\n constructor() { }\n visitElement(ast, context) {\n this.visitChildren(context, visit => {\n visit(ast.attrs);\n visit(ast.children);\n });\n }\n visitAttribute(ast, context) { }\n visitText(ast, context) { }\n visitComment(ast, context) { }\n visitExpansion(ast, context) {\n return this.visitChildren(context, visit => {\n visit(ast.cases);\n });\n }\n visitExpansionCase(ast, context) { }\n visitChildren(context, cb) {\n let results = [];\n let t = this;\n function visit(children) {\n if (children)\n results.push(visitAll(t, children, context));\n }\n cb(visit);\n return Array.prototype.concat.apply([], results);\n }\n}\n\nvar TagContentType;\n(function (TagContentType) {\n TagContentType[TagContentType[\"RAW_TEXT\"] = 0] = \"RAW_TEXT\";\n TagContentType[TagContentType[\"ESCAPABLE_RAW_TEXT\"] = 1] = \"ESCAPABLE_RAW_TEXT\";\n TagContentType[TagContentType[\"PARSABLE_DATA\"] = 2] = \"PARSABLE_DATA\";\n})(TagContentType || (TagContentType = {}));\nfunction splitNsName(elementName) {\n if (elementName[0] != ':') {\n return [null, elementName];\n }\n const colonIndex = elementName.indexOf(':', 1);\n if (colonIndex === -1) {\n throw new Error(`Unsupported format \"${elementName}\" expecting \":namespace:name\"`);\n }\n return [elementName.slice(1, colonIndex), elementName.slice(colonIndex + 1)];\n}\n// `` tags work the same regardless the namespace\nfunction isNgContainer(tagName) {\n return splitNsName(tagName)[1] === 'ng-container';\n}\n// `` tags work the same regardless the namespace\nfunction isNgContent(tagName) {\n return splitNsName(tagName)[1] === 'ng-content';\n}\n// `` tags work the same regardless the namespace\nfunction isNgTemplate(tagName) {\n return splitNsName(tagName)[1] === 'ng-template';\n}\nfunction getNsPrefix(fullName) {\n return fullName === null ? null : splitNsName(fullName)[0];\n}\nfunction mergeNsAndName(prefix, localName) {\n return prefix ? `:${prefix}:${localName}` : localName;\n}\n\nclass ElementSchemaRegistry {\n}\n\nconst BOOLEAN = 'boolean';\nconst NUMBER = 'number';\nconst STRING = 'string';\nconst OBJECT = 'object';\n/**\n * This array represents the DOM schema. It encodes inheritance, properties, and events.\n *\n * ## Overview\n *\n * Each line represents one kind of element. The `element_inheritance` and properties are joined\n * using `element_inheritance|properties` syntax.\n *\n * ## Element Inheritance\n *\n * The `element_inheritance` can be further subdivided as `element1,element2,...^parentElement`.\n * Here the individual elements are separated by `,` (commas). Every element in the list\n * has identical properties.\n *\n * An `element` may inherit additional properties from `parentElement` If no `^parentElement` is\n * specified then `\"\"` (blank) element is assumed.\n *\n * NOTE: The blank element inherits from root `[Element]` element, the super element of all\n * elements.\n *\n * NOTE an element prefix such as `:svg:` has no special meaning to the schema.\n *\n * ## Properties\n *\n * Each element has a set of properties separated by `,` (commas). Each property can be prefixed\n * by a special character designating its type:\n *\n * - (no prefix): property is a string.\n * - `*`: property represents an event.\n * - `!`: property is a boolean.\n * - `#`: property is a number.\n * - `%`: property is an object.\n *\n * ## Query\n *\n * The class creates an internal squas representation which allows to easily answer the query of\n * if a given property exist on a given element.\n *\n * NOTE: We don't yet support querying for types or events.\n * NOTE: This schema is auto extracted from `schema_extractor.ts` located in the test folder,\n * see dom_element_schema_registry_spec.ts\n */\n// =================================================================================================\n// =================================================================================================\n// =========== S T O P - S T O P - S T O P - S T O P - S T O P - S T O P ===========\n// =================================================================================================\n// =================================================================================================\n//\n// DO NOT EDIT THIS DOM SCHEMA WITHOUT A SECURITY REVIEW!\n//\n// Newly added properties must be security reviewed and assigned an appropriate SecurityContext in\n// dom_security_schema.ts. Reach out to mprobst & rjamet for details.\n//\n// =================================================================================================\nconst SCHEMA = [\n '[Element]|textContent,%ariaAtomic,%ariaAutoComplete,%ariaBusy,%ariaChecked,%ariaColCount,%ariaColIndex,%ariaColSpan,%ariaCurrent,%ariaDescription,%ariaDisabled,%ariaExpanded,%ariaHasPopup,%ariaHidden,%ariaKeyShortcuts,%ariaLabel,%ariaLevel,%ariaLive,%ariaModal,%ariaMultiLine,%ariaMultiSelectable,%ariaOrientation,%ariaPlaceholder,%ariaPosInSet,%ariaPressed,%ariaReadOnly,%ariaRelevant,%ariaRequired,%ariaRoleDescription,%ariaRowCount,%ariaRowIndex,%ariaRowSpan,%ariaSelected,%ariaSetSize,%ariaSort,%ariaValueMax,%ariaValueMin,%ariaValueNow,%ariaValueText,%classList,className,elementTiming,id,innerHTML,*beforecopy,*beforecut,*beforepaste,*fullscreenchange,*fullscreenerror,*search,*webkitfullscreenchange,*webkitfullscreenerror,outerHTML,%part,#scrollLeft,#scrollTop,slot' +\n /* added manually to avoid breaking changes */\n ',*message,*mozfullscreenchange,*mozfullscreenerror,*mozpointerlockchange,*mozpointerlockerror,*webglcontextcreationerror,*webglcontextlost,*webglcontextrestored',\n '[HTMLElement]^[Element]|accessKey,autocapitalize,!autofocus,contentEditable,dir,!draggable,enterKeyHint,!hidden,innerText,inputMode,lang,nonce,*abort,*animationend,*animationiteration,*animationstart,*auxclick,*beforexrselect,*blur,*cancel,*canplay,*canplaythrough,*change,*click,*close,*contextmenu,*copy,*cuechange,*cut,*dblclick,*drag,*dragend,*dragenter,*dragleave,*dragover,*dragstart,*drop,*durationchange,*emptied,*ended,*error,*focus,*formdata,*gotpointercapture,*input,*invalid,*keydown,*keypress,*keyup,*load,*loadeddata,*loadedmetadata,*loadstart,*lostpointercapture,*mousedown,*mouseenter,*mouseleave,*mousemove,*mouseout,*mouseover,*mouseup,*mousewheel,*paste,*pause,*play,*playing,*pointercancel,*pointerdown,*pointerenter,*pointerleave,*pointermove,*pointerout,*pointerover,*pointerrawupdate,*pointerup,*progress,*ratechange,*reset,*resize,*scroll,*securitypolicyviolation,*seeked,*seeking,*select,*selectionchange,*selectstart,*slotchange,*stalled,*submit,*suspend,*timeupdate,*toggle,*transitioncancel,*transitionend,*transitionrun,*transitionstart,*volumechange,*waiting,*webkitanimationend,*webkitanimationiteration,*webkitanimationstart,*webkittransitionend,*wheel,outerText,!spellcheck,%style,#tabIndex,title,!translate,virtualKeyboardPolicy',\n 'abbr,address,article,aside,b,bdi,bdo,cite,content,code,dd,dfn,dt,em,figcaption,figure,footer,header,hgroup,i,kbd,main,mark,nav,noscript,rb,rp,rt,rtc,ruby,s,samp,section,small,strong,sub,sup,u,var,wbr^[HTMLElement]|accessKey,autocapitalize,!autofocus,contentEditable,dir,!draggable,enterKeyHint,!hidden,innerText,inputMode,lang,nonce,*abort,*animationend,*animationiteration,*animationstart,*auxclick,*beforexrselect,*blur,*cancel,*canplay,*canplaythrough,*change,*click,*close,*contextmenu,*copy,*cuechange,*cut,*dblclick,*drag,*dragend,*dragenter,*dragleave,*dragover,*dragstart,*drop,*durationchange,*emptied,*ended,*error,*focus,*formdata,*gotpointercapture,*input,*invalid,*keydown,*keypress,*keyup,*load,*loadeddata,*loadedmetadata,*loadstart,*lostpointercapture,*mousedown,*mouseenter,*mouseleave,*mousemove,*mouseout,*mouseover,*mouseup,*mousewheel,*paste,*pause,*play,*playing,*pointercancel,*pointerdown,*pointerenter,*pointerleave,*pointermove,*pointerout,*pointerover,*pointerrawupdate,*pointerup,*progress,*ratechange,*reset,*resize,*scroll,*securitypolicyviolation,*seeked,*seeking,*select,*selectionchange,*selectstart,*slotchange,*stalled,*submit,*suspend,*timeupdate,*toggle,*transitioncancel,*transitionend,*transitionrun,*transitionstart,*volumechange,*waiting,*webkitanimationend,*webkitanimationiteration,*webkitanimationstart,*webkittransitionend,*wheel,outerText,!spellcheck,%style,#tabIndex,title,!translate,virtualKeyboardPolicy',\n 'media^[HTMLElement]|!autoplay,!controls,%controlsList,%crossOrigin,#currentTime,!defaultMuted,#defaultPlaybackRate,!disableRemotePlayback,!loop,!muted,*encrypted,*waitingforkey,#playbackRate,preload,!preservesPitch,src,%srcObject,#volume',\n ':svg:^[HTMLElement]|!autofocus,nonce,*abort,*animationend,*animationiteration,*animationstart,*auxclick,*beforexrselect,*blur,*cancel,*canplay,*canplaythrough,*change,*click,*close,*contextmenu,*copy,*cuechange,*cut,*dblclick,*drag,*dragend,*dragenter,*dragleave,*dragover,*dragstart,*drop,*durationchange,*emptied,*ended,*error,*focus,*formdata,*gotpointercapture,*input,*invalid,*keydown,*keypress,*keyup,*load,*loadeddata,*loadedmetadata,*loadstart,*lostpointercapture,*mousedown,*mouseenter,*mouseleave,*mousemove,*mouseout,*mouseover,*mouseup,*mousewheel,*paste,*pause,*play,*playing,*pointercancel,*pointerdown,*pointerenter,*pointerleave,*pointermove,*pointerout,*pointerover,*pointerrawupdate,*pointerup,*progress,*ratechange,*reset,*resize,*scroll,*securitypolicyviolation,*seeked,*seeking,*select,*selectionchange,*selectstart,*slotchange,*stalled,*submit,*suspend,*timeupdate,*toggle,*transitioncancel,*transitionend,*transitionrun,*transitionstart,*volumechange,*waiting,*webkitanimationend,*webkitanimationiteration,*webkitanimationstart,*webkittransitionend,*wheel,%style,#tabIndex',\n ':svg:graphics^:svg:|',\n ':svg:animation^:svg:|*begin,*end,*repeat',\n ':svg:geometry^:svg:|',\n ':svg:componentTransferFunction^:svg:|',\n ':svg:gradient^:svg:|',\n ':svg:textContent^:svg:graphics|',\n ':svg:textPositioning^:svg:textContent|',\n 'a^[HTMLElement]|charset,coords,download,hash,host,hostname,href,hreflang,name,password,pathname,ping,port,protocol,referrerPolicy,rel,%relList,rev,search,shape,target,text,type,username',\n 'area^[HTMLElement]|alt,coords,download,hash,host,hostname,href,!noHref,password,pathname,ping,port,protocol,referrerPolicy,rel,%relList,search,shape,target,username',\n 'audio^media|',\n 'br^[HTMLElement]|clear',\n 'base^[HTMLElement]|href,target',\n 'body^[HTMLElement]|aLink,background,bgColor,link,*afterprint,*beforeprint,*beforeunload,*blur,*error,*focus,*hashchange,*languagechange,*load,*message,*messageerror,*offline,*online,*pagehide,*pageshow,*popstate,*rejectionhandled,*resize,*scroll,*storage,*unhandledrejection,*unload,text,vLink',\n 'button^[HTMLElement]|!disabled,formAction,formEnctype,formMethod,!formNoValidate,formTarget,name,type,value',\n 'canvas^[HTMLElement]|#height,#width',\n 'content^[HTMLElement]|select',\n 'dl^[HTMLElement]|!compact',\n 'data^[HTMLElement]|value',\n 'datalist^[HTMLElement]|',\n 'details^[HTMLElement]|!open',\n 'dialog^[HTMLElement]|!open,returnValue',\n 'dir^[HTMLElement]|!compact',\n 'div^[HTMLElement]|align',\n 'embed^[HTMLElement]|align,height,name,src,type,width',\n 'fieldset^[HTMLElement]|!disabled,name',\n 'font^[HTMLElement]|color,face,size',\n 'form^[HTMLElement]|acceptCharset,action,autocomplete,encoding,enctype,method,name,!noValidate,target',\n 'frame^[HTMLElement]|frameBorder,longDesc,marginHeight,marginWidth,name,!noResize,scrolling,src',\n 'frameset^[HTMLElement]|cols,*afterprint,*beforeprint,*beforeunload,*blur,*error,*focus,*hashchange,*languagechange,*load,*message,*messageerror,*offline,*online,*pagehide,*pageshow,*popstate,*rejectionhandled,*resize,*scroll,*storage,*unhandledrejection,*unload,rows',\n 'hr^[HTMLElement]|align,color,!noShade,size,width',\n 'head^[HTMLElement]|',\n 'h1,h2,h3,h4,h5,h6^[HTMLElement]|align',\n 'html^[HTMLElement]|version',\n 'iframe^[HTMLElement]|align,allow,!allowFullscreen,!allowPaymentRequest,csp,frameBorder,height,loading,longDesc,marginHeight,marginWidth,name,referrerPolicy,%sandbox,scrolling,src,srcdoc,width',\n 'img^[HTMLElement]|align,alt,border,%crossOrigin,decoding,#height,#hspace,!isMap,loading,longDesc,lowsrc,name,referrerPolicy,sizes,src,srcset,useMap,#vspace,#width',\n 'input^[HTMLElement]|accept,align,alt,autocomplete,!checked,!defaultChecked,defaultValue,dirName,!disabled,%files,formAction,formEnctype,formMethod,!formNoValidate,formTarget,#height,!incremental,!indeterminate,max,#maxLength,min,#minLength,!multiple,name,pattern,placeholder,!readOnly,!required,selectionDirection,#selectionEnd,#selectionStart,#size,src,step,type,useMap,value,%valueAsDate,#valueAsNumber,#width',\n 'li^[HTMLElement]|type,#value',\n 'label^[HTMLElement]|htmlFor',\n 'legend^[HTMLElement]|align',\n 'link^[HTMLElement]|as,charset,%crossOrigin,!disabled,href,hreflang,imageSizes,imageSrcset,integrity,media,referrerPolicy,rel,%relList,rev,%sizes,target,type',\n 'map^[HTMLElement]|name',\n 'marquee^[HTMLElement]|behavior,bgColor,direction,height,#hspace,#loop,#scrollAmount,#scrollDelay,!trueSpeed,#vspace,width',\n 'menu^[HTMLElement]|!compact',\n 'meta^[HTMLElement]|content,httpEquiv,media,name,scheme',\n 'meter^[HTMLElement]|#high,#low,#max,#min,#optimum,#value',\n 'ins,del^[HTMLElement]|cite,dateTime',\n 'ol^[HTMLElement]|!compact,!reversed,#start,type',\n 'object^[HTMLElement]|align,archive,border,code,codeBase,codeType,data,!declare,height,#hspace,name,standby,type,useMap,#vspace,width',\n 'optgroup^[HTMLElement]|!disabled,label',\n 'option^[HTMLElement]|!defaultSelected,!disabled,label,!selected,text,value',\n 'output^[HTMLElement]|defaultValue,%htmlFor,name,value',\n 'p^[HTMLElement]|align',\n 'param^[HTMLElement]|name,type,value,valueType',\n 'picture^[HTMLElement]|',\n 'pre^[HTMLElement]|#width',\n 'progress^[HTMLElement]|#max,#value',\n 'q,blockquote,cite^[HTMLElement]|',\n 'script^[HTMLElement]|!async,charset,%crossOrigin,!defer,event,htmlFor,integrity,!noModule,%referrerPolicy,src,text,type',\n 'select^[HTMLElement]|autocomplete,!disabled,#length,!multiple,name,!required,#selectedIndex,#size,value',\n 'slot^[HTMLElement]|name',\n 'source^[HTMLElement]|#height,media,sizes,src,srcset,type,#width',\n 'span^[HTMLElement]|',\n 'style^[HTMLElement]|!disabled,media,type',\n 'caption^[HTMLElement]|align',\n 'th,td^[HTMLElement]|abbr,align,axis,bgColor,ch,chOff,#colSpan,headers,height,!noWrap,#rowSpan,scope,vAlign,width',\n 'col,colgroup^[HTMLElement]|align,ch,chOff,#span,vAlign,width',\n 'table^[HTMLElement]|align,bgColor,border,%caption,cellPadding,cellSpacing,frame,rules,summary,%tFoot,%tHead,width',\n 'tr^[HTMLElement]|align,bgColor,ch,chOff,vAlign',\n 'tfoot,thead,tbody^[HTMLElement]|align,ch,chOff,vAlign',\n 'template^[HTMLElement]|',\n 'textarea^[HTMLElement]|autocomplete,#cols,defaultValue,dirName,!disabled,#maxLength,#minLength,name,placeholder,!readOnly,!required,#rows,selectionDirection,#selectionEnd,#selectionStart,value,wrap',\n 'time^[HTMLElement]|dateTime',\n 'title^[HTMLElement]|text',\n 'track^[HTMLElement]|!default,kind,label,src,srclang',\n 'ul^[HTMLElement]|!compact,type',\n 'unknown^[HTMLElement]|',\n 'video^media|!disablePictureInPicture,#height,*enterpictureinpicture,*leavepictureinpicture,!playsInline,poster,#width',\n ':svg:a^:svg:graphics|',\n ':svg:animate^:svg:animation|',\n ':svg:animateMotion^:svg:animation|',\n ':svg:animateTransform^:svg:animation|',\n ':svg:circle^:svg:geometry|',\n ':svg:clipPath^:svg:graphics|',\n ':svg:defs^:svg:graphics|',\n ':svg:desc^:svg:|',\n ':svg:discard^:svg:|',\n ':svg:ellipse^:svg:geometry|',\n ':svg:feBlend^:svg:|',\n ':svg:feColorMatrix^:svg:|',\n ':svg:feComponentTransfer^:svg:|',\n ':svg:feComposite^:svg:|',\n ':svg:feConvolveMatrix^:svg:|',\n ':svg:feDiffuseLighting^:svg:|',\n ':svg:feDisplacementMap^:svg:|',\n ':svg:feDistantLight^:svg:|',\n ':svg:feDropShadow^:svg:|',\n ':svg:feFlood^:svg:|',\n ':svg:feFuncA^:svg:componentTransferFunction|',\n ':svg:feFuncB^:svg:componentTransferFunction|',\n ':svg:feFuncG^:svg:componentTransferFunction|',\n ':svg:feFuncR^:svg:componentTransferFunction|',\n ':svg:feGaussianBlur^:svg:|',\n ':svg:feImage^:svg:|',\n ':svg:feMerge^:svg:|',\n ':svg:feMergeNode^:svg:|',\n ':svg:feMorphology^:svg:|',\n ':svg:feOffset^:svg:|',\n ':svg:fePointLight^:svg:|',\n ':svg:feSpecularLighting^:svg:|',\n ':svg:feSpotLight^:svg:|',\n ':svg:feTile^:svg:|',\n ':svg:feTurbulence^:svg:|',\n ':svg:filter^:svg:|',\n ':svg:foreignObject^:svg:graphics|',\n ':svg:g^:svg:graphics|',\n ':svg:image^:svg:graphics|decoding',\n ':svg:line^:svg:geometry|',\n ':svg:linearGradient^:svg:gradient|',\n ':svg:mpath^:svg:|',\n ':svg:marker^:svg:|',\n ':svg:mask^:svg:|',\n ':svg:metadata^:svg:|',\n ':svg:path^:svg:geometry|',\n ':svg:pattern^:svg:|',\n ':svg:polygon^:svg:geometry|',\n ':svg:polyline^:svg:geometry|',\n ':svg:radialGradient^:svg:gradient|',\n ':svg:rect^:svg:geometry|',\n ':svg:svg^:svg:graphics|#currentScale,#zoomAndPan',\n ':svg:script^:svg:|type',\n ':svg:set^:svg:animation|',\n ':svg:stop^:svg:|',\n ':svg:style^:svg:|!disabled,media,title,type',\n ':svg:switch^:svg:graphics|',\n ':svg:symbol^:svg:|',\n ':svg:tspan^:svg:textPositioning|',\n ':svg:text^:svg:textPositioning|',\n ':svg:textPath^:svg:textContent|',\n ':svg:title^:svg:|',\n ':svg:use^:svg:graphics|',\n ':svg:view^:svg:|#zoomAndPan',\n 'data^[HTMLElement]|value',\n 'keygen^[HTMLElement]|!autofocus,challenge,!disabled,form,keytype,name',\n 'menuitem^[HTMLElement]|type,label,icon,!disabled,!checked,radiogroup,!default',\n 'summary^[HTMLElement]|',\n 'time^[HTMLElement]|dateTime',\n ':svg:cursor^:svg:|',\n];\nconst _ATTR_TO_PROP = new Map(Object.entries({\n 'class': 'className',\n 'for': 'htmlFor',\n 'formaction': 'formAction',\n 'innerHtml': 'innerHTML',\n 'readonly': 'readOnly',\n 'tabindex': 'tabIndex',\n}));\n// Invert _ATTR_TO_PROP.\nconst _PROP_TO_ATTR = Array.from(_ATTR_TO_PROP).reduce((inverted, [propertyName, attributeName]) => {\n inverted.set(propertyName, attributeName);\n return inverted;\n}, new Map());\nclass DomElementSchemaRegistry extends ElementSchemaRegistry {\n constructor() {\n super();\n this._schema = new Map();\n // We don't allow binding to events for security reasons. Allowing event bindings would almost\n // certainly introduce bad XSS vulnerabilities. Instead, we store events in a separate schema.\n this._eventSchema = new Map;\n SCHEMA.forEach(encodedType => {\n const type = new Map();\n const events = new Set();\n const [strType, strProperties] = encodedType.split('|');\n const properties = strProperties.split(',');\n const [typeNames, superName] = strType.split('^');\n typeNames.split(',').forEach(tag => {\n this._schema.set(tag.toLowerCase(), type);\n this._eventSchema.set(tag.toLowerCase(), events);\n });\n const superType = superName && this._schema.get(superName.toLowerCase());\n if (superType) {\n for (const [prop, value] of superType) {\n type.set(prop, value);\n }\n for (const superEvent of this._eventSchema.get(superName.toLowerCase())) {\n events.add(superEvent);\n }\n }\n properties.forEach((property) => {\n if (property.length > 0) {\n switch (property[0]) {\n case '*':\n events.add(property.substring(1));\n break;\n case '!':\n type.set(property.substring(1), BOOLEAN);\n break;\n case '#':\n type.set(property.substring(1), NUMBER);\n break;\n case '%':\n type.set(property.substring(1), OBJECT);\n break;\n default:\n type.set(property, STRING);\n }\n }\n });\n });\n }\n hasProperty(tagName, propName, schemaMetas) {\n if (schemaMetas.some((schema) => schema.name === NO_ERRORS_SCHEMA.name)) {\n return true;\n }\n if (tagName.indexOf('-') > -1) {\n if (isNgContainer(tagName) || isNgContent(tagName)) {\n return false;\n }\n if (schemaMetas.some((schema) => schema.name === CUSTOM_ELEMENTS_SCHEMA.name)) {\n // Can't tell now as we don't know which properties a custom element will get\n // once it is instantiated\n return true;\n }\n }\n const elementProperties = this._schema.get(tagName.toLowerCase()) || this._schema.get('unknown');\n return elementProperties.has(propName);\n }\n hasElement(tagName, schemaMetas) {\n if (schemaMetas.some((schema) => schema.name === NO_ERRORS_SCHEMA.name)) {\n return true;\n }\n if (tagName.indexOf('-') > -1) {\n if (isNgContainer(tagName) || isNgContent(tagName)) {\n return true;\n }\n if (schemaMetas.some((schema) => schema.name === CUSTOM_ELEMENTS_SCHEMA.name)) {\n // Allow any custom elements\n return true;\n }\n }\n return this._schema.has(tagName.toLowerCase());\n }\n /**\n * securityContext returns the security context for the given property on the given DOM tag.\n *\n * Tag and property name are statically known and cannot change at runtime, i.e. it is not\n * possible to bind a value into a changing attribute or tag name.\n *\n * The filtering is based on a list of allowed tags|attributes. All attributes in the schema\n * above are assumed to have the 'NONE' security context, i.e. that they are safe inert\n * string values. Only specific well known attack vectors are assigned their appropriate context.\n */\n securityContext(tagName, propName, isAttribute) {\n if (isAttribute) {\n // NB: For security purposes, use the mapped property name, not the attribute name.\n propName = this.getMappedPropName(propName);\n }\n // Make sure comparisons are case insensitive, so that case differences between attribute and\n // property names do not have a security impact.\n tagName = tagName.toLowerCase();\n propName = propName.toLowerCase();\n let ctx = SECURITY_SCHEMA()[tagName + '|' + propName];\n if (ctx) {\n return ctx;\n }\n ctx = SECURITY_SCHEMA()['*|' + propName];\n return ctx ? ctx : SecurityContext.NONE;\n }\n getMappedPropName(propName) {\n return _ATTR_TO_PROP.get(propName) ?? propName;\n }\n getDefaultComponentElementName() {\n return 'ng-component';\n }\n validateProperty(name) {\n if (name.toLowerCase().startsWith('on')) {\n const msg = `Binding to event property '${name}' is disallowed for security reasons, ` +\n `please use (${name.slice(2)})=...` +\n `\\nIf '${name}' is a directive input, make sure the directive is imported by the` +\n ` current module.`;\n return { error: true, msg: msg };\n }\n else {\n return { error: false };\n }\n }\n validateAttribute(name) {\n if (name.toLowerCase().startsWith('on')) {\n const msg = `Binding to event attribute '${name}' is disallowed for security reasons, ` +\n `please use (${name.slice(2)})=...`;\n return { error: true, msg: msg };\n }\n else {\n return { error: false };\n }\n }\n allKnownElementNames() {\n return Array.from(this._schema.keys());\n }\n allKnownAttributesOfElement(tagName) {\n const elementProperties = this._schema.get(tagName.toLowerCase()) || this._schema.get('unknown');\n // Convert properties to attributes.\n return Array.from(elementProperties.keys()).map(prop => _PROP_TO_ATTR.get(prop) ?? prop);\n }\n allKnownEventsOfElement(tagName) {\n return Array.from(this._eventSchema.get(tagName.toLowerCase()) ?? []);\n }\n normalizeAnimationStyleProperty(propName) {\n return dashCaseToCamelCase(propName);\n }\n normalizeAnimationStyleValue(camelCaseProp, userProvidedProp, val) {\n let unit = '';\n const strVal = val.toString().trim();\n let errorMsg = null;\n if (_isPixelDimensionStyle(camelCaseProp) && val !== 0 && val !== '0') {\n if (typeof val === 'number') {\n unit = 'px';\n }\n else {\n const valAndSuffixMatch = val.match(/^[+-]?[\\d\\.]+([a-z]*)$/);\n if (valAndSuffixMatch && valAndSuffixMatch[1].length == 0) {\n errorMsg = `Please provide a CSS unit value for ${userProvidedProp}:${val}`;\n }\n }\n }\n return { error: errorMsg, value: strVal + unit };\n }\n}\nfunction _isPixelDimensionStyle(prop) {\n switch (prop) {\n case 'width':\n case 'height':\n case 'minWidth':\n case 'minHeight':\n case 'maxWidth':\n case 'maxHeight':\n case 'left':\n case 'top':\n case 'bottom':\n case 'right':\n case 'fontSize':\n case 'outlineWidth':\n case 'outlineOffset':\n case 'paddingTop':\n case 'paddingLeft':\n case 'paddingBottom':\n case 'paddingRight':\n case 'marginTop':\n case 'marginLeft':\n case 'marginBottom':\n case 'marginRight':\n case 'borderRadius':\n case 'borderWidth':\n case 'borderTopWidth':\n case 'borderLeftWidth':\n case 'borderRightWidth':\n case 'borderBottomWidth':\n case 'textIndent':\n return true;\n default:\n return false;\n }\n}\n\nclass HtmlTagDefinition {\n constructor({ closedByChildren, implicitNamespacePrefix, contentType = TagContentType.PARSABLE_DATA, closedByParent = false, isVoid = false, ignoreFirstLf = false, preventNamespaceInheritance = false, canSelfClose = false, } = {}) {\n this.closedByChildren = {};\n this.closedByParent = false;\n if (closedByChildren && closedByChildren.length > 0) {\n closedByChildren.forEach(tagName => this.closedByChildren[tagName] = true);\n }\n this.isVoid = isVoid;\n this.closedByParent = closedByParent || isVoid;\n this.implicitNamespacePrefix = implicitNamespacePrefix || null;\n this.contentType = contentType;\n this.ignoreFirstLf = ignoreFirstLf;\n this.preventNamespaceInheritance = preventNamespaceInheritance;\n this.canSelfClose = canSelfClose ?? isVoid;\n }\n isClosedByChild(name) {\n return this.isVoid || name.toLowerCase() in this.closedByChildren;\n }\n getContentType(prefix) {\n if (typeof this.contentType === 'object') {\n const overrideType = prefix === undefined ? undefined : this.contentType[prefix];\n return overrideType ?? this.contentType.default;\n }\n return this.contentType;\n }\n}\nlet DEFAULT_TAG_DEFINITION;\n// see https://www.w3.org/TR/html51/syntax.html#optional-tags\n// This implementation does not fully conform to the HTML5 spec.\nlet TAG_DEFINITIONS;\nfunction getHtmlTagDefinition(tagName) {\n if (!TAG_DEFINITIONS) {\n DEFAULT_TAG_DEFINITION = new HtmlTagDefinition({ canSelfClose: true });\n TAG_DEFINITIONS = {\n 'base': new HtmlTagDefinition({ isVoid: true }),\n 'meta': new HtmlTagDefinition({ isVoid: true }),\n 'area': new HtmlTagDefinition({ isVoid: true }),\n 'embed': new HtmlTagDefinition({ isVoid: true }),\n 'link': new HtmlTagDefinition({ isVoid: true }),\n 'img': new HtmlTagDefinition({ isVoid: true }),\n 'input': new HtmlTagDefinition({ isVoid: true }),\n 'param': new HtmlTagDefinition({ isVoid: true }),\n 'hr': new HtmlTagDefinition({ isVoid: true }),\n 'br': new HtmlTagDefinition({ isVoid: true }),\n 'source': new HtmlTagDefinition({ isVoid: true }),\n 'track': new HtmlTagDefinition({ isVoid: true }),\n 'wbr': new HtmlTagDefinition({ isVoid: true }),\n 'p': new HtmlTagDefinition({\n closedByChildren: [\n 'address', 'article', 'aside', 'blockquote', 'div', 'dl', 'fieldset',\n 'footer', 'form', 'h1', 'h2', 'h3', 'h4', 'h5',\n 'h6', 'header', 'hgroup', 'hr', 'main', 'nav', 'ol',\n 'p', 'pre', 'section', 'table', 'ul'\n ],\n closedByParent: true\n }),\n 'thead': new HtmlTagDefinition({ closedByChildren: ['tbody', 'tfoot'] }),\n 'tbody': new HtmlTagDefinition({ closedByChildren: ['tbody', 'tfoot'], closedByParent: true }),\n 'tfoot': new HtmlTagDefinition({ closedByChildren: ['tbody'], closedByParent: true }),\n 'tr': new HtmlTagDefinition({ closedByChildren: ['tr'], closedByParent: true }),\n 'td': new HtmlTagDefinition({ closedByChildren: ['td', 'th'], closedByParent: true }),\n 'th': new HtmlTagDefinition({ closedByChildren: ['td', 'th'], closedByParent: true }),\n 'col': new HtmlTagDefinition({ isVoid: true }),\n 'svg': new HtmlTagDefinition({ implicitNamespacePrefix: 'svg' }),\n 'foreignObject': new HtmlTagDefinition({\n // Usually the implicit namespace here would be redundant since it will be inherited from\n // the parent `svg`, but we have to do it for `foreignObject`, because the way the parser\n // works is that the parent node of an end tag is its own start tag which means that\n // the `preventNamespaceInheritance` on `foreignObject` would have it default to the\n // implicit namespace which is `html`, unless specified otherwise.\n implicitNamespacePrefix: 'svg',\n // We want to prevent children of foreignObject from inheriting its namespace, because\n // the point of the element is to allow nodes from other namespaces to be inserted.\n preventNamespaceInheritance: true,\n }),\n 'math': new HtmlTagDefinition({ implicitNamespacePrefix: 'math' }),\n 'li': new HtmlTagDefinition({ closedByChildren: ['li'], closedByParent: true }),\n 'dt': new HtmlTagDefinition({ closedByChildren: ['dt', 'dd'] }),\n 'dd': new HtmlTagDefinition({ closedByChildren: ['dt', 'dd'], closedByParent: true }),\n 'rb': new HtmlTagDefinition({ closedByChildren: ['rb', 'rt', 'rtc', 'rp'], closedByParent: true }),\n 'rt': new HtmlTagDefinition({ closedByChildren: ['rb', 'rt', 'rtc', 'rp'], closedByParent: true }),\n 'rtc': new HtmlTagDefinition({ closedByChildren: ['rb', 'rtc', 'rp'], closedByParent: true }),\n 'rp': new HtmlTagDefinition({ closedByChildren: ['rb', 'rt', 'rtc', 'rp'], closedByParent: true }),\n 'optgroup': new HtmlTagDefinition({ closedByChildren: ['optgroup'], closedByParent: true }),\n 'option': new HtmlTagDefinition({ closedByChildren: ['option', 'optgroup'], closedByParent: true }),\n 'pre': new HtmlTagDefinition({ ignoreFirstLf: true }),\n 'listing': new HtmlTagDefinition({ ignoreFirstLf: true }),\n 'style': new HtmlTagDefinition({ contentType: TagContentType.RAW_TEXT }),\n 'script': new HtmlTagDefinition({ contentType: TagContentType.RAW_TEXT }),\n 'title': new HtmlTagDefinition({\n // The browser supports two separate `title` tags which have to use\n // a different content type: `HTMLTitleElement` and `SVGTitleElement`\n contentType: { default: TagContentType.ESCAPABLE_RAW_TEXT, svg: TagContentType.PARSABLE_DATA }\n }),\n 'textarea': new HtmlTagDefinition({ contentType: TagContentType.ESCAPABLE_RAW_TEXT, ignoreFirstLf: true }),\n };\n new DomElementSchemaRegistry().allKnownElementNames().forEach(knownTagName => {\n if (!TAG_DEFINITIONS.hasOwnProperty(knownTagName) && getNsPrefix(knownTagName) === null) {\n TAG_DEFINITIONS[knownTagName] = new HtmlTagDefinition({ canSelfClose: false });\n }\n });\n }\n // We have to make both a case-sensitive and a case-insensitive lookup, because\n // HTML tag names are case insensitive, whereas some SVG tags are case sensitive.\n return TAG_DEFINITIONS[tagName] ?? TAG_DEFINITIONS[tagName.toLowerCase()] ??\n DEFAULT_TAG_DEFINITION;\n}\n\n// Mapping between all HTML entity names and their unicode representation.\n// Generated from https://html.spec.whatwg.org/multipage/entities.json by stripping\n// the `&` and `;` from the keys and removing the duplicates.\n// see https://www.w3.org/TR/html51/syntax.html#named-character-references\nconst NAMED_ENTITIES = {\n 'AElig': '\\u00C6',\n 'AMP': '\\u0026',\n 'amp': '\\u0026',\n 'Aacute': '\\u00C1',\n 'Abreve': '\\u0102',\n 'Acirc': '\\u00C2',\n 'Acy': '\\u0410',\n 'Afr': '\\uD835\\uDD04',\n 'Agrave': '\\u00C0',\n 'Alpha': '\\u0391',\n 'Amacr': '\\u0100',\n 'And': '\\u2A53',\n 'Aogon': '\\u0104',\n 'Aopf': '\\uD835\\uDD38',\n 'ApplyFunction': '\\u2061',\n 'af': '\\u2061',\n 'Aring': '\\u00C5',\n 'angst': '\\u00C5',\n 'Ascr': '\\uD835\\uDC9C',\n 'Assign': '\\u2254',\n 'colone': '\\u2254',\n 'coloneq': '\\u2254',\n 'Atilde': '\\u00C3',\n 'Auml': '\\u00C4',\n 'Backslash': '\\u2216',\n 'setminus': '\\u2216',\n 'setmn': '\\u2216',\n 'smallsetminus': '\\u2216',\n 'ssetmn': '\\u2216',\n 'Barv': '\\u2AE7',\n 'Barwed': '\\u2306',\n 'doublebarwedge': '\\u2306',\n 'Bcy': '\\u0411',\n 'Because': '\\u2235',\n 'becaus': '\\u2235',\n 'because': '\\u2235',\n 'Bernoullis': '\\u212C',\n 'Bscr': '\\u212C',\n 'bernou': '\\u212C',\n 'Beta': '\\u0392',\n 'Bfr': '\\uD835\\uDD05',\n 'Bopf': '\\uD835\\uDD39',\n 'Breve': '\\u02D8',\n 'breve': '\\u02D8',\n 'Bumpeq': '\\u224E',\n 'HumpDownHump': '\\u224E',\n 'bump': '\\u224E',\n 'CHcy': '\\u0427',\n 'COPY': '\\u00A9',\n 'copy': '\\u00A9',\n 'Cacute': '\\u0106',\n 'Cap': '\\u22D2',\n 'CapitalDifferentialD': '\\u2145',\n 'DD': '\\u2145',\n 'Cayleys': '\\u212D',\n 'Cfr': '\\u212D',\n 'Ccaron': '\\u010C',\n 'Ccedil': '\\u00C7',\n 'Ccirc': '\\u0108',\n 'Cconint': '\\u2230',\n 'Cdot': '\\u010A',\n 'Cedilla': '\\u00B8',\n 'cedil': '\\u00B8',\n 'CenterDot': '\\u00B7',\n 'centerdot': '\\u00B7',\n 'middot': '\\u00B7',\n 'Chi': '\\u03A7',\n 'CircleDot': '\\u2299',\n 'odot': '\\u2299',\n 'CircleMinus': '\\u2296',\n 'ominus': '\\u2296',\n 'CirclePlus': '\\u2295',\n 'oplus': '\\u2295',\n 'CircleTimes': '\\u2297',\n 'otimes': '\\u2297',\n 'ClockwiseContourIntegral': '\\u2232',\n 'cwconint': '\\u2232',\n 'CloseCurlyDoubleQuote': '\\u201D',\n 'rdquo': '\\u201D',\n 'rdquor': '\\u201D',\n 'CloseCurlyQuote': '\\u2019',\n 'rsquo': '\\u2019',\n 'rsquor': '\\u2019',\n 'Colon': '\\u2237',\n 'Proportion': '\\u2237',\n 'Colone': '\\u2A74',\n 'Congruent': '\\u2261',\n 'equiv': '\\u2261',\n 'Conint': '\\u222F',\n 'DoubleContourIntegral': '\\u222F',\n 'ContourIntegral': '\\u222E',\n 'conint': '\\u222E',\n 'oint': '\\u222E',\n 'Copf': '\\u2102',\n 'complexes': '\\u2102',\n 'Coproduct': '\\u2210',\n 'coprod': '\\u2210',\n 'CounterClockwiseContourIntegral': '\\u2233',\n 'awconint': '\\u2233',\n 'Cross': '\\u2A2F',\n 'Cscr': '\\uD835\\uDC9E',\n 'Cup': '\\u22D3',\n 'CupCap': '\\u224D',\n 'asympeq': '\\u224D',\n 'DDotrahd': '\\u2911',\n 'DJcy': '\\u0402',\n 'DScy': '\\u0405',\n 'DZcy': '\\u040F',\n 'Dagger': '\\u2021',\n 'ddagger': '\\u2021',\n 'Darr': '\\u21A1',\n 'Dashv': '\\u2AE4',\n 'DoubleLeftTee': '\\u2AE4',\n 'Dcaron': '\\u010E',\n 'Dcy': '\\u0414',\n 'Del': '\\u2207',\n 'nabla': '\\u2207',\n 'Delta': '\\u0394',\n 'Dfr': '\\uD835\\uDD07',\n 'DiacriticalAcute': '\\u00B4',\n 'acute': '\\u00B4',\n 'DiacriticalDot': '\\u02D9',\n 'dot': '\\u02D9',\n 'DiacriticalDoubleAcute': '\\u02DD',\n 'dblac': '\\u02DD',\n 'DiacriticalGrave': '\\u0060',\n 'grave': '\\u0060',\n 'DiacriticalTilde': '\\u02DC',\n 'tilde': '\\u02DC',\n 'Diamond': '\\u22C4',\n 'diam': '\\u22C4',\n 'diamond': '\\u22C4',\n 'DifferentialD': '\\u2146',\n 'dd': '\\u2146',\n 'Dopf': '\\uD835\\uDD3B',\n 'Dot': '\\u00A8',\n 'DoubleDot': '\\u00A8',\n 'die': '\\u00A8',\n 'uml': '\\u00A8',\n 'DotDot': '\\u20DC',\n 'DotEqual': '\\u2250',\n 'doteq': '\\u2250',\n 'esdot': '\\u2250',\n 'DoubleDownArrow': '\\u21D3',\n 'Downarrow': '\\u21D3',\n 'dArr': '\\u21D3',\n 'DoubleLeftArrow': '\\u21D0',\n 'Leftarrow': '\\u21D0',\n 'lArr': '\\u21D0',\n 'DoubleLeftRightArrow': '\\u21D4',\n 'Leftrightarrow': '\\u21D4',\n 'hArr': '\\u21D4',\n 'iff': '\\u21D4',\n 'DoubleLongLeftArrow': '\\u27F8',\n 'Longleftarrow': '\\u27F8',\n 'xlArr': '\\u27F8',\n 'DoubleLongLeftRightArrow': '\\u27FA',\n 'Longleftrightarrow': '\\u27FA',\n 'xhArr': '\\u27FA',\n 'DoubleLongRightArrow': '\\u27F9',\n 'Longrightarrow': '\\u27F9',\n 'xrArr': '\\u27F9',\n 'DoubleRightArrow': '\\u21D2',\n 'Implies': '\\u21D2',\n 'Rightarrow': '\\u21D2',\n 'rArr': '\\u21D2',\n 'DoubleRightTee': '\\u22A8',\n 'vDash': '\\u22A8',\n 'DoubleUpArrow': '\\u21D1',\n 'Uparrow': '\\u21D1',\n 'uArr': '\\u21D1',\n 'DoubleUpDownArrow': '\\u21D5',\n 'Updownarrow': '\\u21D5',\n 'vArr': '\\u21D5',\n 'DoubleVerticalBar': '\\u2225',\n 'par': '\\u2225',\n 'parallel': '\\u2225',\n 'shortparallel': '\\u2225',\n 'spar': '\\u2225',\n 'DownArrow': '\\u2193',\n 'ShortDownArrow': '\\u2193',\n 'darr': '\\u2193',\n 'downarrow': '\\u2193',\n 'DownArrowBar': '\\u2913',\n 'DownArrowUpArrow': '\\u21F5',\n 'duarr': '\\u21F5',\n 'DownBreve': '\\u0311',\n 'DownLeftRightVector': '\\u2950',\n 'DownLeftTeeVector': '\\u295E',\n 'DownLeftVector': '\\u21BD',\n 'leftharpoondown': '\\u21BD',\n 'lhard': '\\u21BD',\n 'DownLeftVectorBar': '\\u2956',\n 'DownRightTeeVector': '\\u295F',\n 'DownRightVector': '\\u21C1',\n 'rhard': '\\u21C1',\n 'rightharpoondown': '\\u21C1',\n 'DownRightVectorBar': '\\u2957',\n 'DownTee': '\\u22A4',\n 'top': '\\u22A4',\n 'DownTeeArrow': '\\u21A7',\n 'mapstodown': '\\u21A7',\n 'Dscr': '\\uD835\\uDC9F',\n 'Dstrok': '\\u0110',\n 'ENG': '\\u014A',\n 'ETH': '\\u00D0',\n 'Eacute': '\\u00C9',\n 'Ecaron': '\\u011A',\n 'Ecirc': '\\u00CA',\n 'Ecy': '\\u042D',\n 'Edot': '\\u0116',\n 'Efr': '\\uD835\\uDD08',\n 'Egrave': '\\u00C8',\n 'Element': '\\u2208',\n 'in': '\\u2208',\n 'isin': '\\u2208',\n 'isinv': '\\u2208',\n 'Emacr': '\\u0112',\n 'EmptySmallSquare': '\\u25FB',\n 'EmptyVerySmallSquare': '\\u25AB',\n 'Eogon': '\\u0118',\n 'Eopf': '\\uD835\\uDD3C',\n 'Epsilon': '\\u0395',\n 'Equal': '\\u2A75',\n 'EqualTilde': '\\u2242',\n 'eqsim': '\\u2242',\n 'esim': '\\u2242',\n 'Equilibrium': '\\u21CC',\n 'rightleftharpoons': '\\u21CC',\n 'rlhar': '\\u21CC',\n 'Escr': '\\u2130',\n 'expectation': '\\u2130',\n 'Esim': '\\u2A73',\n 'Eta': '\\u0397',\n 'Euml': '\\u00CB',\n 'Exists': '\\u2203',\n 'exist': '\\u2203',\n 'ExponentialE': '\\u2147',\n 'ee': '\\u2147',\n 'exponentiale': '\\u2147',\n 'Fcy': '\\u0424',\n 'Ffr': '\\uD835\\uDD09',\n 'FilledSmallSquare': '\\u25FC',\n 'FilledVerySmallSquare': '\\u25AA',\n 'blacksquare': '\\u25AA',\n 'squarf': '\\u25AA',\n 'squf': '\\u25AA',\n 'Fopf': '\\uD835\\uDD3D',\n 'ForAll': '\\u2200',\n 'forall': '\\u2200',\n 'Fouriertrf': '\\u2131',\n 'Fscr': '\\u2131',\n 'GJcy': '\\u0403',\n 'GT': '\\u003E',\n 'gt': '\\u003E',\n 'Gamma': '\\u0393',\n 'Gammad': '\\u03DC',\n 'Gbreve': '\\u011E',\n 'Gcedil': '\\u0122',\n 'Gcirc': '\\u011C',\n 'Gcy': '\\u0413',\n 'Gdot': '\\u0120',\n 'Gfr': '\\uD835\\uDD0A',\n 'Gg': '\\u22D9',\n 'ggg': '\\u22D9',\n 'Gopf': '\\uD835\\uDD3E',\n 'GreaterEqual': '\\u2265',\n 'ge': '\\u2265',\n 'geq': '\\u2265',\n 'GreaterEqualLess': '\\u22DB',\n 'gel': '\\u22DB',\n 'gtreqless': '\\u22DB',\n 'GreaterFullEqual': '\\u2267',\n 'gE': '\\u2267',\n 'geqq': '\\u2267',\n 'GreaterGreater': '\\u2AA2',\n 'GreaterLess': '\\u2277',\n 'gl': '\\u2277',\n 'gtrless': '\\u2277',\n 'GreaterSlantEqual': '\\u2A7E',\n 'geqslant': '\\u2A7E',\n 'ges': '\\u2A7E',\n 'GreaterTilde': '\\u2273',\n 'gsim': '\\u2273',\n 'gtrsim': '\\u2273',\n 'Gscr': '\\uD835\\uDCA2',\n 'Gt': '\\u226B',\n 'NestedGreaterGreater': '\\u226B',\n 'gg': '\\u226B',\n 'HARDcy': '\\u042A',\n 'Hacek': '\\u02C7',\n 'caron': '\\u02C7',\n 'Hat': '\\u005E',\n 'Hcirc': '\\u0124',\n 'Hfr': '\\u210C',\n 'Poincareplane': '\\u210C',\n 'HilbertSpace': '\\u210B',\n 'Hscr': '\\u210B',\n 'hamilt': '\\u210B',\n 'Hopf': '\\u210D',\n 'quaternions': '\\u210D',\n 'HorizontalLine': '\\u2500',\n 'boxh': '\\u2500',\n 'Hstrok': '\\u0126',\n 'HumpEqual': '\\u224F',\n 'bumpe': '\\u224F',\n 'bumpeq': '\\u224F',\n 'IEcy': '\\u0415',\n 'IJlig': '\\u0132',\n 'IOcy': '\\u0401',\n 'Iacute': '\\u00CD',\n 'Icirc': '\\u00CE',\n 'Icy': '\\u0418',\n 'Idot': '\\u0130',\n 'Ifr': '\\u2111',\n 'Im': '\\u2111',\n 'image': '\\u2111',\n 'imagpart': '\\u2111',\n 'Igrave': '\\u00CC',\n 'Imacr': '\\u012A',\n 'ImaginaryI': '\\u2148',\n 'ii': '\\u2148',\n 'Int': '\\u222C',\n 'Integral': '\\u222B',\n 'int': '\\u222B',\n 'Intersection': '\\u22C2',\n 'bigcap': '\\u22C2',\n 'xcap': '\\u22C2',\n 'InvisibleComma': '\\u2063',\n 'ic': '\\u2063',\n 'InvisibleTimes': '\\u2062',\n 'it': '\\u2062',\n 'Iogon': '\\u012E',\n 'Iopf': '\\uD835\\uDD40',\n 'Iota': '\\u0399',\n 'Iscr': '\\u2110',\n 'imagline': '\\u2110',\n 'Itilde': '\\u0128',\n 'Iukcy': '\\u0406',\n 'Iuml': '\\u00CF',\n 'Jcirc': '\\u0134',\n 'Jcy': '\\u0419',\n 'Jfr': '\\uD835\\uDD0D',\n 'Jopf': '\\uD835\\uDD41',\n 'Jscr': '\\uD835\\uDCA5',\n 'Jsercy': '\\u0408',\n 'Jukcy': '\\u0404',\n 'KHcy': '\\u0425',\n 'KJcy': '\\u040C',\n 'Kappa': '\\u039A',\n 'Kcedil': '\\u0136',\n 'Kcy': '\\u041A',\n 'Kfr': '\\uD835\\uDD0E',\n 'Kopf': '\\uD835\\uDD42',\n 'Kscr': '\\uD835\\uDCA6',\n 'LJcy': '\\u0409',\n 'LT': '\\u003C',\n 'lt': '\\u003C',\n 'Lacute': '\\u0139',\n 'Lambda': '\\u039B',\n 'Lang': '\\u27EA',\n 'Laplacetrf': '\\u2112',\n 'Lscr': '\\u2112',\n 'lagran': '\\u2112',\n 'Larr': '\\u219E',\n 'twoheadleftarrow': '\\u219E',\n 'Lcaron': '\\u013D',\n 'Lcedil': '\\u013B',\n 'Lcy': '\\u041B',\n 'LeftAngleBracket': '\\u27E8',\n 'lang': '\\u27E8',\n 'langle': '\\u27E8',\n 'LeftArrow': '\\u2190',\n 'ShortLeftArrow': '\\u2190',\n 'larr': '\\u2190',\n 'leftarrow': '\\u2190',\n 'slarr': '\\u2190',\n 'LeftArrowBar': '\\u21E4',\n 'larrb': '\\u21E4',\n 'LeftArrowRightArrow': '\\u21C6',\n 'leftrightarrows': '\\u21C6',\n 'lrarr': '\\u21C6',\n 'LeftCeiling': '\\u2308',\n 'lceil': '\\u2308',\n 'LeftDoubleBracket': '\\u27E6',\n 'lobrk': '\\u27E6',\n 'LeftDownTeeVector': '\\u2961',\n 'LeftDownVector': '\\u21C3',\n 'dharl': '\\u21C3',\n 'downharpoonleft': '\\u21C3',\n 'LeftDownVectorBar': '\\u2959',\n 'LeftFloor': '\\u230A',\n 'lfloor': '\\u230A',\n 'LeftRightArrow': '\\u2194',\n 'harr': '\\u2194',\n 'leftrightarrow': '\\u2194',\n 'LeftRightVector': '\\u294E',\n 'LeftTee': '\\u22A3',\n 'dashv': '\\u22A3',\n 'LeftTeeArrow': '\\u21A4',\n 'mapstoleft': '\\u21A4',\n 'LeftTeeVector': '\\u295A',\n 'LeftTriangle': '\\u22B2',\n 'vartriangleleft': '\\u22B2',\n 'vltri': '\\u22B2',\n 'LeftTriangleBar': '\\u29CF',\n 'LeftTriangleEqual': '\\u22B4',\n 'ltrie': '\\u22B4',\n 'trianglelefteq': '\\u22B4',\n 'LeftUpDownVector': '\\u2951',\n 'LeftUpTeeVector': '\\u2960',\n 'LeftUpVector': '\\u21BF',\n 'uharl': '\\u21BF',\n 'upharpoonleft': '\\u21BF',\n 'LeftUpVectorBar': '\\u2958',\n 'LeftVector': '\\u21BC',\n 'leftharpoonup': '\\u21BC',\n 'lharu': '\\u21BC',\n 'LeftVectorBar': '\\u2952',\n 'LessEqualGreater': '\\u22DA',\n 'leg': '\\u22DA',\n 'lesseqgtr': '\\u22DA',\n 'LessFullEqual': '\\u2266',\n 'lE': '\\u2266',\n 'leqq': '\\u2266',\n 'LessGreater': '\\u2276',\n 'lessgtr': '\\u2276',\n 'lg': '\\u2276',\n 'LessLess': '\\u2AA1',\n 'LessSlantEqual': '\\u2A7D',\n 'leqslant': '\\u2A7D',\n 'les': '\\u2A7D',\n 'LessTilde': '\\u2272',\n 'lesssim': '\\u2272',\n 'lsim': '\\u2272',\n 'Lfr': '\\uD835\\uDD0F',\n 'Ll': '\\u22D8',\n 'Lleftarrow': '\\u21DA',\n 'lAarr': '\\u21DA',\n 'Lmidot': '\\u013F',\n 'LongLeftArrow': '\\u27F5',\n 'longleftarrow': '\\u27F5',\n 'xlarr': '\\u27F5',\n 'LongLeftRightArrow': '\\u27F7',\n 'longleftrightarrow': '\\u27F7',\n 'xharr': '\\u27F7',\n 'LongRightArrow': '\\u27F6',\n 'longrightarrow': '\\u27F6',\n 'xrarr': '\\u27F6',\n 'Lopf': '\\uD835\\uDD43',\n 'LowerLeftArrow': '\\u2199',\n 'swarr': '\\u2199',\n 'swarrow': '\\u2199',\n 'LowerRightArrow': '\\u2198',\n 'searr': '\\u2198',\n 'searrow': '\\u2198',\n 'Lsh': '\\u21B0',\n 'lsh': '\\u21B0',\n 'Lstrok': '\\u0141',\n 'Lt': '\\u226A',\n 'NestedLessLess': '\\u226A',\n 'll': '\\u226A',\n 'Map': '\\u2905',\n 'Mcy': '\\u041C',\n 'MediumSpace': '\\u205F',\n 'Mellintrf': '\\u2133',\n 'Mscr': '\\u2133',\n 'phmmat': '\\u2133',\n 'Mfr': '\\uD835\\uDD10',\n 'MinusPlus': '\\u2213',\n 'mnplus': '\\u2213',\n 'mp': '\\u2213',\n 'Mopf': '\\uD835\\uDD44',\n 'Mu': '\\u039C',\n 'NJcy': '\\u040A',\n 'Nacute': '\\u0143',\n 'Ncaron': '\\u0147',\n 'Ncedil': '\\u0145',\n 'Ncy': '\\u041D',\n 'NegativeMediumSpace': '\\u200B',\n 'NegativeThickSpace': '\\u200B',\n 'NegativeThinSpace': '\\u200B',\n 'NegativeVeryThinSpace': '\\u200B',\n 'ZeroWidthSpace': '\\u200B',\n 'NewLine': '\\u000A',\n 'Nfr': '\\uD835\\uDD11',\n 'NoBreak': '\\u2060',\n 'NonBreakingSpace': '\\u00A0',\n 'nbsp': '\\u00A0',\n 'Nopf': '\\u2115',\n 'naturals': '\\u2115',\n 'Not': '\\u2AEC',\n 'NotCongruent': '\\u2262',\n 'nequiv': '\\u2262',\n 'NotCupCap': '\\u226D',\n 'NotDoubleVerticalBar': '\\u2226',\n 'npar': '\\u2226',\n 'nparallel': '\\u2226',\n 'nshortparallel': '\\u2226',\n 'nspar': '\\u2226',\n 'NotElement': '\\u2209',\n 'notin': '\\u2209',\n 'notinva': '\\u2209',\n 'NotEqual': '\\u2260',\n 'ne': '\\u2260',\n 'NotEqualTilde': '\\u2242\\u0338',\n 'nesim': '\\u2242\\u0338',\n 'NotExists': '\\u2204',\n 'nexist': '\\u2204',\n 'nexists': '\\u2204',\n 'NotGreater': '\\u226F',\n 'ngt': '\\u226F',\n 'ngtr': '\\u226F',\n 'NotGreaterEqual': '\\u2271',\n 'nge': '\\u2271',\n 'ngeq': '\\u2271',\n 'NotGreaterFullEqual': '\\u2267\\u0338',\n 'ngE': '\\u2267\\u0338',\n 'ngeqq': '\\u2267\\u0338',\n 'NotGreaterGreater': '\\u226B\\u0338',\n 'nGtv': '\\u226B\\u0338',\n 'NotGreaterLess': '\\u2279',\n 'ntgl': '\\u2279',\n 'NotGreaterSlantEqual': '\\u2A7E\\u0338',\n 'ngeqslant': '\\u2A7E\\u0338',\n 'nges': '\\u2A7E\\u0338',\n 'NotGreaterTilde': '\\u2275',\n 'ngsim': '\\u2275',\n 'NotHumpDownHump': '\\u224E\\u0338',\n 'nbump': '\\u224E\\u0338',\n 'NotHumpEqual': '\\u224F\\u0338',\n 'nbumpe': '\\u224F\\u0338',\n 'NotLeftTriangle': '\\u22EA',\n 'nltri': '\\u22EA',\n 'ntriangleleft': '\\u22EA',\n 'NotLeftTriangleBar': '\\u29CF\\u0338',\n 'NotLeftTriangleEqual': '\\u22EC',\n 'nltrie': '\\u22EC',\n 'ntrianglelefteq': '\\u22EC',\n 'NotLess': '\\u226E',\n 'nless': '\\u226E',\n 'nlt': '\\u226E',\n 'NotLessEqual': '\\u2270',\n 'nle': '\\u2270',\n 'nleq': '\\u2270',\n 'NotLessGreater': '\\u2278',\n 'ntlg': '\\u2278',\n 'NotLessLess': '\\u226A\\u0338',\n 'nLtv': '\\u226A\\u0338',\n 'NotLessSlantEqual': '\\u2A7D\\u0338',\n 'nleqslant': '\\u2A7D\\u0338',\n 'nles': '\\u2A7D\\u0338',\n 'NotLessTilde': '\\u2274',\n 'nlsim': '\\u2274',\n 'NotNestedGreaterGreater': '\\u2AA2\\u0338',\n 'NotNestedLessLess': '\\u2AA1\\u0338',\n 'NotPrecedes': '\\u2280',\n 'npr': '\\u2280',\n 'nprec': '\\u2280',\n 'NotPrecedesEqual': '\\u2AAF\\u0338',\n 'npre': '\\u2AAF\\u0338',\n 'npreceq': '\\u2AAF\\u0338',\n 'NotPrecedesSlantEqual': '\\u22E0',\n 'nprcue': '\\u22E0',\n 'NotReverseElement': '\\u220C',\n 'notni': '\\u220C',\n 'notniva': '\\u220C',\n 'NotRightTriangle': '\\u22EB',\n 'nrtri': '\\u22EB',\n 'ntriangleright': '\\u22EB',\n 'NotRightTriangleBar': '\\u29D0\\u0338',\n 'NotRightTriangleEqual': '\\u22ED',\n 'nrtrie': '\\u22ED',\n 'ntrianglerighteq': '\\u22ED',\n 'NotSquareSubset': '\\u228F\\u0338',\n 'NotSquareSubsetEqual': '\\u22E2',\n 'nsqsube': '\\u22E2',\n 'NotSquareSuperset': '\\u2290\\u0338',\n 'NotSquareSupersetEqual': '\\u22E3',\n 'nsqsupe': '\\u22E3',\n 'NotSubset': '\\u2282\\u20D2',\n 'nsubset': '\\u2282\\u20D2',\n 'vnsub': '\\u2282\\u20D2',\n 'NotSubsetEqual': '\\u2288',\n 'nsube': '\\u2288',\n 'nsubseteq': '\\u2288',\n 'NotSucceeds': '\\u2281',\n 'nsc': '\\u2281',\n 'nsucc': '\\u2281',\n 'NotSucceedsEqual': '\\u2AB0\\u0338',\n 'nsce': '\\u2AB0\\u0338',\n 'nsucceq': '\\u2AB0\\u0338',\n 'NotSucceedsSlantEqual': '\\u22E1',\n 'nsccue': '\\u22E1',\n 'NotSucceedsTilde': '\\u227F\\u0338',\n 'NotSuperset': '\\u2283\\u20D2',\n 'nsupset': '\\u2283\\u20D2',\n 'vnsup': '\\u2283\\u20D2',\n 'NotSupersetEqual': '\\u2289',\n 'nsupe': '\\u2289',\n 'nsupseteq': '\\u2289',\n 'NotTilde': '\\u2241',\n 'nsim': '\\u2241',\n 'NotTildeEqual': '\\u2244',\n 'nsime': '\\u2244',\n 'nsimeq': '\\u2244',\n 'NotTildeFullEqual': '\\u2247',\n 'ncong': '\\u2247',\n 'NotTildeTilde': '\\u2249',\n 'nap': '\\u2249',\n 'napprox': '\\u2249',\n 'NotVerticalBar': '\\u2224',\n 'nmid': '\\u2224',\n 'nshortmid': '\\u2224',\n 'nsmid': '\\u2224',\n 'Nscr': '\\uD835\\uDCA9',\n 'Ntilde': '\\u00D1',\n 'Nu': '\\u039D',\n 'OElig': '\\u0152',\n 'Oacute': '\\u00D3',\n 'Ocirc': '\\u00D4',\n 'Ocy': '\\u041E',\n 'Odblac': '\\u0150',\n 'Ofr': '\\uD835\\uDD12',\n 'Ograve': '\\u00D2',\n 'Omacr': '\\u014C',\n 'Omega': '\\u03A9',\n 'ohm': '\\u03A9',\n 'Omicron': '\\u039F',\n 'Oopf': '\\uD835\\uDD46',\n 'OpenCurlyDoubleQuote': '\\u201C',\n 'ldquo': '\\u201C',\n 'OpenCurlyQuote': '\\u2018',\n 'lsquo': '\\u2018',\n 'Or': '\\u2A54',\n 'Oscr': '\\uD835\\uDCAA',\n 'Oslash': '\\u00D8',\n 'Otilde': '\\u00D5',\n 'Otimes': '\\u2A37',\n 'Ouml': '\\u00D6',\n 'OverBar': '\\u203E',\n 'oline': '\\u203E',\n 'OverBrace': '\\u23DE',\n 'OverBracket': '\\u23B4',\n 'tbrk': '\\u23B4',\n 'OverParenthesis': '\\u23DC',\n 'PartialD': '\\u2202',\n 'part': '\\u2202',\n 'Pcy': '\\u041F',\n 'Pfr': '\\uD835\\uDD13',\n 'Phi': '\\u03A6',\n 'Pi': '\\u03A0',\n 'PlusMinus': '\\u00B1',\n 'plusmn': '\\u00B1',\n 'pm': '\\u00B1',\n 'Popf': '\\u2119',\n 'primes': '\\u2119',\n 'Pr': '\\u2ABB',\n 'Precedes': '\\u227A',\n 'pr': '\\u227A',\n 'prec': '\\u227A',\n 'PrecedesEqual': '\\u2AAF',\n 'pre': '\\u2AAF',\n 'preceq': '\\u2AAF',\n 'PrecedesSlantEqual': '\\u227C',\n 'prcue': '\\u227C',\n 'preccurlyeq': '\\u227C',\n 'PrecedesTilde': '\\u227E',\n 'precsim': '\\u227E',\n 'prsim': '\\u227E',\n 'Prime': '\\u2033',\n 'Product': '\\u220F',\n 'prod': '\\u220F',\n 'Proportional': '\\u221D',\n 'prop': '\\u221D',\n 'propto': '\\u221D',\n 'varpropto': '\\u221D',\n 'vprop': '\\u221D',\n 'Pscr': '\\uD835\\uDCAB',\n 'Psi': '\\u03A8',\n 'QUOT': '\\u0022',\n 'quot': '\\u0022',\n 'Qfr': '\\uD835\\uDD14',\n 'Qopf': '\\u211A',\n 'rationals': '\\u211A',\n 'Qscr': '\\uD835\\uDCAC',\n 'RBarr': '\\u2910',\n 'drbkarow': '\\u2910',\n 'REG': '\\u00AE',\n 'circledR': '\\u00AE',\n 'reg': '\\u00AE',\n 'Racute': '\\u0154',\n 'Rang': '\\u27EB',\n 'Rarr': '\\u21A0',\n 'twoheadrightarrow': '\\u21A0',\n 'Rarrtl': '\\u2916',\n 'Rcaron': '\\u0158',\n 'Rcedil': '\\u0156',\n 'Rcy': '\\u0420',\n 'Re': '\\u211C',\n 'Rfr': '\\u211C',\n 'real': '\\u211C',\n 'realpart': '\\u211C',\n 'ReverseElement': '\\u220B',\n 'SuchThat': '\\u220B',\n 'ni': '\\u220B',\n 'niv': '\\u220B',\n 'ReverseEquilibrium': '\\u21CB',\n 'leftrightharpoons': '\\u21CB',\n 'lrhar': '\\u21CB',\n 'ReverseUpEquilibrium': '\\u296F',\n 'duhar': '\\u296F',\n 'Rho': '\\u03A1',\n 'RightAngleBracket': '\\u27E9',\n 'rang': '\\u27E9',\n 'rangle': '\\u27E9',\n 'RightArrow': '\\u2192',\n 'ShortRightArrow': '\\u2192',\n 'rarr': '\\u2192',\n 'rightarrow': '\\u2192',\n 'srarr': '\\u2192',\n 'RightArrowBar': '\\u21E5',\n 'rarrb': '\\u21E5',\n 'RightArrowLeftArrow': '\\u21C4',\n 'rightleftarrows': '\\u21C4',\n 'rlarr': '\\u21C4',\n 'RightCeiling': '\\u2309',\n 'rceil': '\\u2309',\n 'RightDoubleBracket': '\\u27E7',\n 'robrk': '\\u27E7',\n 'RightDownTeeVector': '\\u295D',\n 'RightDownVector': '\\u21C2',\n 'dharr': '\\u21C2',\n 'downharpoonright': '\\u21C2',\n 'RightDownVectorBar': '\\u2955',\n 'RightFloor': '\\u230B',\n 'rfloor': '\\u230B',\n 'RightTee': '\\u22A2',\n 'vdash': '\\u22A2',\n 'RightTeeArrow': '\\u21A6',\n 'map': '\\u21A6',\n 'mapsto': '\\u21A6',\n 'RightTeeVector': '\\u295B',\n 'RightTriangle': '\\u22B3',\n 'vartriangleright': '\\u22B3',\n 'vrtri': '\\u22B3',\n 'RightTriangleBar': '\\u29D0',\n 'RightTriangleEqual': '\\u22B5',\n 'rtrie': '\\u22B5',\n 'trianglerighteq': '\\u22B5',\n 'RightUpDownVector': '\\u294F',\n 'RightUpTeeVector': '\\u295C',\n 'RightUpVector': '\\u21BE',\n 'uharr': '\\u21BE',\n 'upharpoonright': '\\u21BE',\n 'RightUpVectorBar': '\\u2954',\n 'RightVector': '\\u21C0',\n 'rharu': '\\u21C0',\n 'rightharpoonup': '\\u21C0',\n 'RightVectorBar': '\\u2953',\n 'Ropf': '\\u211D',\n 'reals': '\\u211D',\n 'RoundImplies': '\\u2970',\n 'Rrightarrow': '\\u21DB',\n 'rAarr': '\\u21DB',\n 'Rscr': '\\u211B',\n 'realine': '\\u211B',\n 'Rsh': '\\u21B1',\n 'rsh': '\\u21B1',\n 'RuleDelayed': '\\u29F4',\n 'SHCHcy': '\\u0429',\n 'SHcy': '\\u0428',\n 'SOFTcy': '\\u042C',\n 'Sacute': '\\u015A',\n 'Sc': '\\u2ABC',\n 'Scaron': '\\u0160',\n 'Scedil': '\\u015E',\n 'Scirc': '\\u015C',\n 'Scy': '\\u0421',\n 'Sfr': '\\uD835\\uDD16',\n 'ShortUpArrow': '\\u2191',\n 'UpArrow': '\\u2191',\n 'uarr': '\\u2191',\n 'uparrow': '\\u2191',\n 'Sigma': '\\u03A3',\n 'SmallCircle': '\\u2218',\n 'compfn': '\\u2218',\n 'Sopf': '\\uD835\\uDD4A',\n 'Sqrt': '\\u221A',\n 'radic': '\\u221A',\n 'Square': '\\u25A1',\n 'squ': '\\u25A1',\n 'square': '\\u25A1',\n 'SquareIntersection': '\\u2293',\n 'sqcap': '\\u2293',\n 'SquareSubset': '\\u228F',\n 'sqsub': '\\u228F',\n 'sqsubset': '\\u228F',\n 'SquareSubsetEqual': '\\u2291',\n 'sqsube': '\\u2291',\n 'sqsubseteq': '\\u2291',\n 'SquareSuperset': '\\u2290',\n 'sqsup': '\\u2290',\n 'sqsupset': '\\u2290',\n 'SquareSupersetEqual': '\\u2292',\n 'sqsupe': '\\u2292',\n 'sqsupseteq': '\\u2292',\n 'SquareUnion': '\\u2294',\n 'sqcup': '\\u2294',\n 'Sscr': '\\uD835\\uDCAE',\n 'Star': '\\u22C6',\n 'sstarf': '\\u22C6',\n 'Sub': '\\u22D0',\n 'Subset': '\\u22D0',\n 'SubsetEqual': '\\u2286',\n 'sube': '\\u2286',\n 'subseteq': '\\u2286',\n 'Succeeds': '\\u227B',\n 'sc': '\\u227B',\n 'succ': '\\u227B',\n 'SucceedsEqual': '\\u2AB0',\n 'sce': '\\u2AB0',\n 'succeq': '\\u2AB0',\n 'SucceedsSlantEqual': '\\u227D',\n 'sccue': '\\u227D',\n 'succcurlyeq': '\\u227D',\n 'SucceedsTilde': '\\u227F',\n 'scsim': '\\u227F',\n 'succsim': '\\u227F',\n 'Sum': '\\u2211',\n 'sum': '\\u2211',\n 'Sup': '\\u22D1',\n 'Supset': '\\u22D1',\n 'Superset': '\\u2283',\n 'sup': '\\u2283',\n 'supset': '\\u2283',\n 'SupersetEqual': '\\u2287',\n 'supe': '\\u2287',\n 'supseteq': '\\u2287',\n 'THORN': '\\u00DE',\n 'TRADE': '\\u2122',\n 'trade': '\\u2122',\n 'TSHcy': '\\u040B',\n 'TScy': '\\u0426',\n 'Tab': '\\u0009',\n 'Tau': '\\u03A4',\n 'Tcaron': '\\u0164',\n 'Tcedil': '\\u0162',\n 'Tcy': '\\u0422',\n 'Tfr': '\\uD835\\uDD17',\n 'Therefore': '\\u2234',\n 'there4': '\\u2234',\n 'therefore': '\\u2234',\n 'Theta': '\\u0398',\n 'ThickSpace': '\\u205F\\u200A',\n 'ThinSpace': '\\u2009',\n 'thinsp': '\\u2009',\n 'Tilde': '\\u223C',\n 'sim': '\\u223C',\n 'thicksim': '\\u223C',\n 'thksim': '\\u223C',\n 'TildeEqual': '\\u2243',\n 'sime': '\\u2243',\n 'simeq': '\\u2243',\n 'TildeFullEqual': '\\u2245',\n 'cong': '\\u2245',\n 'TildeTilde': '\\u2248',\n 'ap': '\\u2248',\n 'approx': '\\u2248',\n 'asymp': '\\u2248',\n 'thickapprox': '\\u2248',\n 'thkap': '\\u2248',\n 'Topf': '\\uD835\\uDD4B',\n 'TripleDot': '\\u20DB',\n 'tdot': '\\u20DB',\n 'Tscr': '\\uD835\\uDCAF',\n 'Tstrok': '\\u0166',\n 'Uacute': '\\u00DA',\n 'Uarr': '\\u219F',\n 'Uarrocir': '\\u2949',\n 'Ubrcy': '\\u040E',\n 'Ubreve': '\\u016C',\n 'Ucirc': '\\u00DB',\n 'Ucy': '\\u0423',\n 'Udblac': '\\u0170',\n 'Ufr': '\\uD835\\uDD18',\n 'Ugrave': '\\u00D9',\n 'Umacr': '\\u016A',\n 'UnderBar': '\\u005F',\n 'lowbar': '\\u005F',\n 'UnderBrace': '\\u23DF',\n 'UnderBracket': '\\u23B5',\n 'bbrk': '\\u23B5',\n 'UnderParenthesis': '\\u23DD',\n 'Union': '\\u22C3',\n 'bigcup': '\\u22C3',\n 'xcup': '\\u22C3',\n 'UnionPlus': '\\u228E',\n 'uplus': '\\u228E',\n 'Uogon': '\\u0172',\n 'Uopf': '\\uD835\\uDD4C',\n 'UpArrowBar': '\\u2912',\n 'UpArrowDownArrow': '\\u21C5',\n 'udarr': '\\u21C5',\n 'UpDownArrow': '\\u2195',\n 'updownarrow': '\\u2195',\n 'varr': '\\u2195',\n 'UpEquilibrium': '\\u296E',\n 'udhar': '\\u296E',\n 'UpTee': '\\u22A5',\n 'bot': '\\u22A5',\n 'bottom': '\\u22A5',\n 'perp': '\\u22A5',\n 'UpTeeArrow': '\\u21A5',\n 'mapstoup': '\\u21A5',\n 'UpperLeftArrow': '\\u2196',\n 'nwarr': '\\u2196',\n 'nwarrow': '\\u2196',\n 'UpperRightArrow': '\\u2197',\n 'nearr': '\\u2197',\n 'nearrow': '\\u2197',\n 'Upsi': '\\u03D2',\n 'upsih': '\\u03D2',\n 'Upsilon': '\\u03A5',\n 'Uring': '\\u016E',\n 'Uscr': '\\uD835\\uDCB0',\n 'Utilde': '\\u0168',\n 'Uuml': '\\u00DC',\n 'VDash': '\\u22AB',\n 'Vbar': '\\u2AEB',\n 'Vcy': '\\u0412',\n 'Vdash': '\\u22A9',\n 'Vdashl': '\\u2AE6',\n 'Vee': '\\u22C1',\n 'bigvee': '\\u22C1',\n 'xvee': '\\u22C1',\n 'Verbar': '\\u2016',\n 'Vert': '\\u2016',\n 'VerticalBar': '\\u2223',\n 'mid': '\\u2223',\n 'shortmid': '\\u2223',\n 'smid': '\\u2223',\n 'VerticalLine': '\\u007C',\n 'verbar': '\\u007C',\n 'vert': '\\u007C',\n 'VerticalSeparator': '\\u2758',\n 'VerticalTilde': '\\u2240',\n 'wr': '\\u2240',\n 'wreath': '\\u2240',\n 'VeryThinSpace': '\\u200A',\n 'hairsp': '\\u200A',\n 'Vfr': '\\uD835\\uDD19',\n 'Vopf': '\\uD835\\uDD4D',\n 'Vscr': '\\uD835\\uDCB1',\n 'Vvdash': '\\u22AA',\n 'Wcirc': '\\u0174',\n 'Wedge': '\\u22C0',\n 'bigwedge': '\\u22C0',\n 'xwedge': '\\u22C0',\n 'Wfr': '\\uD835\\uDD1A',\n 'Wopf': '\\uD835\\uDD4E',\n 'Wscr': '\\uD835\\uDCB2',\n 'Xfr': '\\uD835\\uDD1B',\n 'Xi': '\\u039E',\n 'Xopf': '\\uD835\\uDD4F',\n 'Xscr': '\\uD835\\uDCB3',\n 'YAcy': '\\u042F',\n 'YIcy': '\\u0407',\n 'YUcy': '\\u042E',\n 'Yacute': '\\u00DD',\n 'Ycirc': '\\u0176',\n 'Ycy': '\\u042B',\n 'Yfr': '\\uD835\\uDD1C',\n 'Yopf': '\\uD835\\uDD50',\n 'Yscr': '\\uD835\\uDCB4',\n 'Yuml': '\\u0178',\n 'ZHcy': '\\u0416',\n 'Zacute': '\\u0179',\n 'Zcaron': '\\u017D',\n 'Zcy': '\\u0417',\n 'Zdot': '\\u017B',\n 'Zeta': '\\u0396',\n 'Zfr': '\\u2128',\n 'zeetrf': '\\u2128',\n 'Zopf': '\\u2124',\n 'integers': '\\u2124',\n 'Zscr': '\\uD835\\uDCB5',\n 'aacute': '\\u00E1',\n 'abreve': '\\u0103',\n 'ac': '\\u223E',\n 'mstpos': '\\u223E',\n 'acE': '\\u223E\\u0333',\n 'acd': '\\u223F',\n 'acirc': '\\u00E2',\n 'acy': '\\u0430',\n 'aelig': '\\u00E6',\n 'afr': '\\uD835\\uDD1E',\n 'agrave': '\\u00E0',\n 'alefsym': '\\u2135',\n 'aleph': '\\u2135',\n 'alpha': '\\u03B1',\n 'amacr': '\\u0101',\n 'amalg': '\\u2A3F',\n 'and': '\\u2227',\n 'wedge': '\\u2227',\n 'andand': '\\u2A55',\n 'andd': '\\u2A5C',\n 'andslope': '\\u2A58',\n 'andv': '\\u2A5A',\n 'ang': '\\u2220',\n 'angle': '\\u2220',\n 'ange': '\\u29A4',\n 'angmsd': '\\u2221',\n 'measuredangle': '\\u2221',\n 'angmsdaa': '\\u29A8',\n 'angmsdab': '\\u29A9',\n 'angmsdac': '\\u29AA',\n 'angmsdad': '\\u29AB',\n 'angmsdae': '\\u29AC',\n 'angmsdaf': '\\u29AD',\n 'angmsdag': '\\u29AE',\n 'angmsdah': '\\u29AF',\n 'angrt': '\\u221F',\n 'angrtvb': '\\u22BE',\n 'angrtvbd': '\\u299D',\n 'angsph': '\\u2222',\n 'angzarr': '\\u237C',\n 'aogon': '\\u0105',\n 'aopf': '\\uD835\\uDD52',\n 'apE': '\\u2A70',\n 'apacir': '\\u2A6F',\n 'ape': '\\u224A',\n 'approxeq': '\\u224A',\n 'apid': '\\u224B',\n 'apos': '\\u0027',\n 'aring': '\\u00E5',\n 'ascr': '\\uD835\\uDCB6',\n 'ast': '\\u002A',\n 'midast': '\\u002A',\n 'atilde': '\\u00E3',\n 'auml': '\\u00E4',\n 'awint': '\\u2A11',\n 'bNot': '\\u2AED',\n 'backcong': '\\u224C',\n 'bcong': '\\u224C',\n 'backepsilon': '\\u03F6',\n 'bepsi': '\\u03F6',\n 'backprime': '\\u2035',\n 'bprime': '\\u2035',\n 'backsim': '\\u223D',\n 'bsim': '\\u223D',\n 'backsimeq': '\\u22CD',\n 'bsime': '\\u22CD',\n 'barvee': '\\u22BD',\n 'barwed': '\\u2305',\n 'barwedge': '\\u2305',\n 'bbrktbrk': '\\u23B6',\n 'bcy': '\\u0431',\n 'bdquo': '\\u201E',\n 'ldquor': '\\u201E',\n 'bemptyv': '\\u29B0',\n 'beta': '\\u03B2',\n 'beth': '\\u2136',\n 'between': '\\u226C',\n 'twixt': '\\u226C',\n 'bfr': '\\uD835\\uDD1F',\n 'bigcirc': '\\u25EF',\n 'xcirc': '\\u25EF',\n 'bigodot': '\\u2A00',\n 'xodot': '\\u2A00',\n 'bigoplus': '\\u2A01',\n 'xoplus': '\\u2A01',\n 'bigotimes': '\\u2A02',\n 'xotime': '\\u2A02',\n 'bigsqcup': '\\u2A06',\n 'xsqcup': '\\u2A06',\n 'bigstar': '\\u2605',\n 'starf': '\\u2605',\n 'bigtriangledown': '\\u25BD',\n 'xdtri': '\\u25BD',\n 'bigtriangleup': '\\u25B3',\n 'xutri': '\\u25B3',\n 'biguplus': '\\u2A04',\n 'xuplus': '\\u2A04',\n 'bkarow': '\\u290D',\n 'rbarr': '\\u290D',\n 'blacklozenge': '\\u29EB',\n 'lozf': '\\u29EB',\n 'blacktriangle': '\\u25B4',\n 'utrif': '\\u25B4',\n 'blacktriangledown': '\\u25BE',\n 'dtrif': '\\u25BE',\n 'blacktriangleleft': '\\u25C2',\n 'ltrif': '\\u25C2',\n 'blacktriangleright': '\\u25B8',\n 'rtrif': '\\u25B8',\n 'blank': '\\u2423',\n 'blk12': '\\u2592',\n 'blk14': '\\u2591',\n 'blk34': '\\u2593',\n 'block': '\\u2588',\n 'bne': '\\u003D\\u20E5',\n 'bnequiv': '\\u2261\\u20E5',\n 'bnot': '\\u2310',\n 'bopf': '\\uD835\\uDD53',\n 'bowtie': '\\u22C8',\n 'boxDL': '\\u2557',\n 'boxDR': '\\u2554',\n 'boxDl': '\\u2556',\n 'boxDr': '\\u2553',\n 'boxH': '\\u2550',\n 'boxHD': '\\u2566',\n 'boxHU': '\\u2569',\n 'boxHd': '\\u2564',\n 'boxHu': '\\u2567',\n 'boxUL': '\\u255D',\n 'boxUR': '\\u255A',\n 'boxUl': '\\u255C',\n 'boxUr': '\\u2559',\n 'boxV': '\\u2551',\n 'boxVH': '\\u256C',\n 'boxVL': '\\u2563',\n 'boxVR': '\\u2560',\n 'boxVh': '\\u256B',\n 'boxVl': '\\u2562',\n 'boxVr': '\\u255F',\n 'boxbox': '\\u29C9',\n 'boxdL': '\\u2555',\n 'boxdR': '\\u2552',\n 'boxdl': '\\u2510',\n 'boxdr': '\\u250C',\n 'boxhD': '\\u2565',\n 'boxhU': '\\u2568',\n 'boxhd': '\\u252C',\n 'boxhu': '\\u2534',\n 'boxminus': '\\u229F',\n 'minusb': '\\u229F',\n 'boxplus': '\\u229E',\n 'plusb': '\\u229E',\n 'boxtimes': '\\u22A0',\n 'timesb': '\\u22A0',\n 'boxuL': '\\u255B',\n 'boxuR': '\\u2558',\n 'boxul': '\\u2518',\n 'boxur': '\\u2514',\n 'boxv': '\\u2502',\n 'boxvH': '\\u256A',\n 'boxvL': '\\u2561',\n 'boxvR': '\\u255E',\n 'boxvh': '\\u253C',\n 'boxvl': '\\u2524',\n 'boxvr': '\\u251C',\n 'brvbar': '\\u00A6',\n 'bscr': '\\uD835\\uDCB7',\n 'bsemi': '\\u204F',\n 'bsol': '\\u005C',\n 'bsolb': '\\u29C5',\n 'bsolhsub': '\\u27C8',\n 'bull': '\\u2022',\n 'bullet': '\\u2022',\n 'bumpE': '\\u2AAE',\n 'cacute': '\\u0107',\n 'cap': '\\u2229',\n 'capand': '\\u2A44',\n 'capbrcup': '\\u2A49',\n 'capcap': '\\u2A4B',\n 'capcup': '\\u2A47',\n 'capdot': '\\u2A40',\n 'caps': '\\u2229\\uFE00',\n 'caret': '\\u2041',\n 'ccaps': '\\u2A4D',\n 'ccaron': '\\u010D',\n 'ccedil': '\\u00E7',\n 'ccirc': '\\u0109',\n 'ccups': '\\u2A4C',\n 'ccupssm': '\\u2A50',\n 'cdot': '\\u010B',\n 'cemptyv': '\\u29B2',\n 'cent': '\\u00A2',\n 'cfr': '\\uD835\\uDD20',\n 'chcy': '\\u0447',\n 'check': '\\u2713',\n 'checkmark': '\\u2713',\n 'chi': '\\u03C7',\n 'cir': '\\u25CB',\n 'cirE': '\\u29C3',\n 'circ': '\\u02C6',\n 'circeq': '\\u2257',\n 'cire': '\\u2257',\n 'circlearrowleft': '\\u21BA',\n 'olarr': '\\u21BA',\n 'circlearrowright': '\\u21BB',\n 'orarr': '\\u21BB',\n 'circledS': '\\u24C8',\n 'oS': '\\u24C8',\n 'circledast': '\\u229B',\n 'oast': '\\u229B',\n 'circledcirc': '\\u229A',\n 'ocir': '\\u229A',\n 'circleddash': '\\u229D',\n 'odash': '\\u229D',\n 'cirfnint': '\\u2A10',\n 'cirmid': '\\u2AEF',\n 'cirscir': '\\u29C2',\n 'clubs': '\\u2663',\n 'clubsuit': '\\u2663',\n 'colon': '\\u003A',\n 'comma': '\\u002C',\n 'commat': '\\u0040',\n 'comp': '\\u2201',\n 'complement': '\\u2201',\n 'congdot': '\\u2A6D',\n 'copf': '\\uD835\\uDD54',\n 'copysr': '\\u2117',\n 'crarr': '\\u21B5',\n 'cross': '\\u2717',\n 'cscr': '\\uD835\\uDCB8',\n 'csub': '\\u2ACF',\n 'csube': '\\u2AD1',\n 'csup': '\\u2AD0',\n 'csupe': '\\u2AD2',\n 'ctdot': '\\u22EF',\n 'cudarrl': '\\u2938',\n 'cudarrr': '\\u2935',\n 'cuepr': '\\u22DE',\n 'curlyeqprec': '\\u22DE',\n 'cuesc': '\\u22DF',\n 'curlyeqsucc': '\\u22DF',\n 'cularr': '\\u21B6',\n 'curvearrowleft': '\\u21B6',\n 'cularrp': '\\u293D',\n 'cup': '\\u222A',\n 'cupbrcap': '\\u2A48',\n 'cupcap': '\\u2A46',\n 'cupcup': '\\u2A4A',\n 'cupdot': '\\u228D',\n 'cupor': '\\u2A45',\n 'cups': '\\u222A\\uFE00',\n 'curarr': '\\u21B7',\n 'curvearrowright': '\\u21B7',\n 'curarrm': '\\u293C',\n 'curlyvee': '\\u22CE',\n 'cuvee': '\\u22CE',\n 'curlywedge': '\\u22CF',\n 'cuwed': '\\u22CF',\n 'curren': '\\u00A4',\n 'cwint': '\\u2231',\n 'cylcty': '\\u232D',\n 'dHar': '\\u2965',\n 'dagger': '\\u2020',\n 'daleth': '\\u2138',\n 'dash': '\\u2010',\n 'hyphen': '\\u2010',\n 'dbkarow': '\\u290F',\n 'rBarr': '\\u290F',\n 'dcaron': '\\u010F',\n 'dcy': '\\u0434',\n 'ddarr': '\\u21CA',\n 'downdownarrows': '\\u21CA',\n 'ddotseq': '\\u2A77',\n 'eDDot': '\\u2A77',\n 'deg': '\\u00B0',\n 'delta': '\\u03B4',\n 'demptyv': '\\u29B1',\n 'dfisht': '\\u297F',\n 'dfr': '\\uD835\\uDD21',\n 'diamondsuit': '\\u2666',\n 'diams': '\\u2666',\n 'digamma': '\\u03DD',\n 'gammad': '\\u03DD',\n 'disin': '\\u22F2',\n 'div': '\\u00F7',\n 'divide': '\\u00F7',\n 'divideontimes': '\\u22C7',\n 'divonx': '\\u22C7',\n 'djcy': '\\u0452',\n 'dlcorn': '\\u231E',\n 'llcorner': '\\u231E',\n 'dlcrop': '\\u230D',\n 'dollar': '\\u0024',\n 'dopf': '\\uD835\\uDD55',\n 'doteqdot': '\\u2251',\n 'eDot': '\\u2251',\n 'dotminus': '\\u2238',\n 'minusd': '\\u2238',\n 'dotplus': '\\u2214',\n 'plusdo': '\\u2214',\n 'dotsquare': '\\u22A1',\n 'sdotb': '\\u22A1',\n 'drcorn': '\\u231F',\n 'lrcorner': '\\u231F',\n 'drcrop': '\\u230C',\n 'dscr': '\\uD835\\uDCB9',\n 'dscy': '\\u0455',\n 'dsol': '\\u29F6',\n 'dstrok': '\\u0111',\n 'dtdot': '\\u22F1',\n 'dtri': '\\u25BF',\n 'triangledown': '\\u25BF',\n 'dwangle': '\\u29A6',\n 'dzcy': '\\u045F',\n 'dzigrarr': '\\u27FF',\n 'eacute': '\\u00E9',\n 'easter': '\\u2A6E',\n 'ecaron': '\\u011B',\n 'ecir': '\\u2256',\n 'eqcirc': '\\u2256',\n 'ecirc': '\\u00EA',\n 'ecolon': '\\u2255',\n 'eqcolon': '\\u2255',\n 'ecy': '\\u044D',\n 'edot': '\\u0117',\n 'efDot': '\\u2252',\n 'fallingdotseq': '\\u2252',\n 'efr': '\\uD835\\uDD22',\n 'eg': '\\u2A9A',\n 'egrave': '\\u00E8',\n 'egs': '\\u2A96',\n 'eqslantgtr': '\\u2A96',\n 'egsdot': '\\u2A98',\n 'el': '\\u2A99',\n 'elinters': '\\u23E7',\n 'ell': '\\u2113',\n 'els': '\\u2A95',\n 'eqslantless': '\\u2A95',\n 'elsdot': '\\u2A97',\n 'emacr': '\\u0113',\n 'empty': '\\u2205',\n 'emptyset': '\\u2205',\n 'emptyv': '\\u2205',\n 'varnothing': '\\u2205',\n 'emsp13': '\\u2004',\n 'emsp14': '\\u2005',\n 'emsp': '\\u2003',\n 'eng': '\\u014B',\n 'ensp': '\\u2002',\n 'eogon': '\\u0119',\n 'eopf': '\\uD835\\uDD56',\n 'epar': '\\u22D5',\n 'eparsl': '\\u29E3',\n 'eplus': '\\u2A71',\n 'epsi': '\\u03B5',\n 'epsilon': '\\u03B5',\n 'epsiv': '\\u03F5',\n 'straightepsilon': '\\u03F5',\n 'varepsilon': '\\u03F5',\n 'equals': '\\u003D',\n 'equest': '\\u225F',\n 'questeq': '\\u225F',\n 'equivDD': '\\u2A78',\n 'eqvparsl': '\\u29E5',\n 'erDot': '\\u2253',\n 'risingdotseq': '\\u2253',\n 'erarr': '\\u2971',\n 'escr': '\\u212F',\n 'eta': '\\u03B7',\n 'eth': '\\u00F0',\n 'euml': '\\u00EB',\n 'euro': '\\u20AC',\n 'excl': '\\u0021',\n 'fcy': '\\u0444',\n 'female': '\\u2640',\n 'ffilig': '\\uFB03',\n 'fflig': '\\uFB00',\n 'ffllig': '\\uFB04',\n 'ffr': '\\uD835\\uDD23',\n 'filig': '\\uFB01',\n 'fjlig': '\\u0066\\u006A',\n 'flat': '\\u266D',\n 'fllig': '\\uFB02',\n 'fltns': '\\u25B1',\n 'fnof': '\\u0192',\n 'fopf': '\\uD835\\uDD57',\n 'fork': '\\u22D4',\n 'pitchfork': '\\u22D4',\n 'forkv': '\\u2AD9',\n 'fpartint': '\\u2A0D',\n 'frac12': '\\u00BD',\n 'half': '\\u00BD',\n 'frac13': '\\u2153',\n 'frac14': '\\u00BC',\n 'frac15': '\\u2155',\n 'frac16': '\\u2159',\n 'frac18': '\\u215B',\n 'frac23': '\\u2154',\n 'frac25': '\\u2156',\n 'frac34': '\\u00BE',\n 'frac35': '\\u2157',\n 'frac38': '\\u215C',\n 'frac45': '\\u2158',\n 'frac56': '\\u215A',\n 'frac58': '\\u215D',\n 'frac78': '\\u215E',\n 'frasl': '\\u2044',\n 'frown': '\\u2322',\n 'sfrown': '\\u2322',\n 'fscr': '\\uD835\\uDCBB',\n 'gEl': '\\u2A8C',\n 'gtreqqless': '\\u2A8C',\n 'gacute': '\\u01F5',\n 'gamma': '\\u03B3',\n 'gap': '\\u2A86',\n 'gtrapprox': '\\u2A86',\n 'gbreve': '\\u011F',\n 'gcirc': '\\u011D',\n 'gcy': '\\u0433',\n 'gdot': '\\u0121',\n 'gescc': '\\u2AA9',\n 'gesdot': '\\u2A80',\n 'gesdoto': '\\u2A82',\n 'gesdotol': '\\u2A84',\n 'gesl': '\\u22DB\\uFE00',\n 'gesles': '\\u2A94',\n 'gfr': '\\uD835\\uDD24',\n 'gimel': '\\u2137',\n 'gjcy': '\\u0453',\n 'glE': '\\u2A92',\n 'gla': '\\u2AA5',\n 'glj': '\\u2AA4',\n 'gnE': '\\u2269',\n 'gneqq': '\\u2269',\n 'gnap': '\\u2A8A',\n 'gnapprox': '\\u2A8A',\n 'gne': '\\u2A88',\n 'gneq': '\\u2A88',\n 'gnsim': '\\u22E7',\n 'gopf': '\\uD835\\uDD58',\n 'gscr': '\\u210A',\n 'gsime': '\\u2A8E',\n 'gsiml': '\\u2A90',\n 'gtcc': '\\u2AA7',\n 'gtcir': '\\u2A7A',\n 'gtdot': '\\u22D7',\n 'gtrdot': '\\u22D7',\n 'gtlPar': '\\u2995',\n 'gtquest': '\\u2A7C',\n 'gtrarr': '\\u2978',\n 'gvertneqq': '\\u2269\\uFE00',\n 'gvnE': '\\u2269\\uFE00',\n 'hardcy': '\\u044A',\n 'harrcir': '\\u2948',\n 'harrw': '\\u21AD',\n 'leftrightsquigarrow': '\\u21AD',\n 'hbar': '\\u210F',\n 'hslash': '\\u210F',\n 'planck': '\\u210F',\n 'plankv': '\\u210F',\n 'hcirc': '\\u0125',\n 'hearts': '\\u2665',\n 'heartsuit': '\\u2665',\n 'hellip': '\\u2026',\n 'mldr': '\\u2026',\n 'hercon': '\\u22B9',\n 'hfr': '\\uD835\\uDD25',\n 'hksearow': '\\u2925',\n 'searhk': '\\u2925',\n 'hkswarow': '\\u2926',\n 'swarhk': '\\u2926',\n 'hoarr': '\\u21FF',\n 'homtht': '\\u223B',\n 'hookleftarrow': '\\u21A9',\n 'larrhk': '\\u21A9',\n 'hookrightarrow': '\\u21AA',\n 'rarrhk': '\\u21AA',\n 'hopf': '\\uD835\\uDD59',\n 'horbar': '\\u2015',\n 'hscr': '\\uD835\\uDCBD',\n 'hstrok': '\\u0127',\n 'hybull': '\\u2043',\n 'iacute': '\\u00ED',\n 'icirc': '\\u00EE',\n 'icy': '\\u0438',\n 'iecy': '\\u0435',\n 'iexcl': '\\u00A1',\n 'ifr': '\\uD835\\uDD26',\n 'igrave': '\\u00EC',\n 'iiiint': '\\u2A0C',\n 'qint': '\\u2A0C',\n 'iiint': '\\u222D',\n 'tint': '\\u222D',\n 'iinfin': '\\u29DC',\n 'iiota': '\\u2129',\n 'ijlig': '\\u0133',\n 'imacr': '\\u012B',\n 'imath': '\\u0131',\n 'inodot': '\\u0131',\n 'imof': '\\u22B7',\n 'imped': '\\u01B5',\n 'incare': '\\u2105',\n 'infin': '\\u221E',\n 'infintie': '\\u29DD',\n 'intcal': '\\u22BA',\n 'intercal': '\\u22BA',\n 'intlarhk': '\\u2A17',\n 'intprod': '\\u2A3C',\n 'iprod': '\\u2A3C',\n 'iocy': '\\u0451',\n 'iogon': '\\u012F',\n 'iopf': '\\uD835\\uDD5A',\n 'iota': '\\u03B9',\n 'iquest': '\\u00BF',\n 'iscr': '\\uD835\\uDCBE',\n 'isinE': '\\u22F9',\n 'isindot': '\\u22F5',\n 'isins': '\\u22F4',\n 'isinsv': '\\u22F3',\n 'itilde': '\\u0129',\n 'iukcy': '\\u0456',\n 'iuml': '\\u00EF',\n 'jcirc': '\\u0135',\n 'jcy': '\\u0439',\n 'jfr': '\\uD835\\uDD27',\n 'jmath': '\\u0237',\n 'jopf': '\\uD835\\uDD5B',\n 'jscr': '\\uD835\\uDCBF',\n 'jsercy': '\\u0458',\n 'jukcy': '\\u0454',\n 'kappa': '\\u03BA',\n 'kappav': '\\u03F0',\n 'varkappa': '\\u03F0',\n 'kcedil': '\\u0137',\n 'kcy': '\\u043A',\n 'kfr': '\\uD835\\uDD28',\n 'kgreen': '\\u0138',\n 'khcy': '\\u0445',\n 'kjcy': '\\u045C',\n 'kopf': '\\uD835\\uDD5C',\n 'kscr': '\\uD835\\uDCC0',\n 'lAtail': '\\u291B',\n 'lBarr': '\\u290E',\n 'lEg': '\\u2A8B',\n 'lesseqqgtr': '\\u2A8B',\n 'lHar': '\\u2962',\n 'lacute': '\\u013A',\n 'laemptyv': '\\u29B4',\n 'lambda': '\\u03BB',\n 'langd': '\\u2991',\n 'lap': '\\u2A85',\n 'lessapprox': '\\u2A85',\n 'laquo': '\\u00AB',\n 'larrbfs': '\\u291F',\n 'larrfs': '\\u291D',\n 'larrlp': '\\u21AB',\n 'looparrowleft': '\\u21AB',\n 'larrpl': '\\u2939',\n 'larrsim': '\\u2973',\n 'larrtl': '\\u21A2',\n 'leftarrowtail': '\\u21A2',\n 'lat': '\\u2AAB',\n 'latail': '\\u2919',\n 'late': '\\u2AAD',\n 'lates': '\\u2AAD\\uFE00',\n 'lbarr': '\\u290C',\n 'lbbrk': '\\u2772',\n 'lbrace': '\\u007B',\n 'lcub': '\\u007B',\n 'lbrack': '\\u005B',\n 'lsqb': '\\u005B',\n 'lbrke': '\\u298B',\n 'lbrksld': '\\u298F',\n 'lbrkslu': '\\u298D',\n 'lcaron': '\\u013E',\n 'lcedil': '\\u013C',\n 'lcy': '\\u043B',\n 'ldca': '\\u2936',\n 'ldrdhar': '\\u2967',\n 'ldrushar': '\\u294B',\n 'ldsh': '\\u21B2',\n 'le': '\\u2264',\n 'leq': '\\u2264',\n 'leftleftarrows': '\\u21C7',\n 'llarr': '\\u21C7',\n 'leftthreetimes': '\\u22CB',\n 'lthree': '\\u22CB',\n 'lescc': '\\u2AA8',\n 'lesdot': '\\u2A7F',\n 'lesdoto': '\\u2A81',\n 'lesdotor': '\\u2A83',\n 'lesg': '\\u22DA\\uFE00',\n 'lesges': '\\u2A93',\n 'lessdot': '\\u22D6',\n 'ltdot': '\\u22D6',\n 'lfisht': '\\u297C',\n 'lfr': '\\uD835\\uDD29',\n 'lgE': '\\u2A91',\n 'lharul': '\\u296A',\n 'lhblk': '\\u2584',\n 'ljcy': '\\u0459',\n 'llhard': '\\u296B',\n 'lltri': '\\u25FA',\n 'lmidot': '\\u0140',\n 'lmoust': '\\u23B0',\n 'lmoustache': '\\u23B0',\n 'lnE': '\\u2268',\n 'lneqq': '\\u2268',\n 'lnap': '\\u2A89',\n 'lnapprox': '\\u2A89',\n 'lne': '\\u2A87',\n 'lneq': '\\u2A87',\n 'lnsim': '\\u22E6',\n 'loang': '\\u27EC',\n 'loarr': '\\u21FD',\n 'longmapsto': '\\u27FC',\n 'xmap': '\\u27FC',\n 'looparrowright': '\\u21AC',\n 'rarrlp': '\\u21AC',\n 'lopar': '\\u2985',\n 'lopf': '\\uD835\\uDD5D',\n 'loplus': '\\u2A2D',\n 'lotimes': '\\u2A34',\n 'lowast': '\\u2217',\n 'loz': '\\u25CA',\n 'lozenge': '\\u25CA',\n 'lpar': '\\u0028',\n 'lparlt': '\\u2993',\n 'lrhard': '\\u296D',\n 'lrm': '\\u200E',\n 'lrtri': '\\u22BF',\n 'lsaquo': '\\u2039',\n 'lscr': '\\uD835\\uDCC1',\n 'lsime': '\\u2A8D',\n 'lsimg': '\\u2A8F',\n 'lsquor': '\\u201A',\n 'sbquo': '\\u201A',\n 'lstrok': '\\u0142',\n 'ltcc': '\\u2AA6',\n 'ltcir': '\\u2A79',\n 'ltimes': '\\u22C9',\n 'ltlarr': '\\u2976',\n 'ltquest': '\\u2A7B',\n 'ltrPar': '\\u2996',\n 'ltri': '\\u25C3',\n 'triangleleft': '\\u25C3',\n 'lurdshar': '\\u294A',\n 'luruhar': '\\u2966',\n 'lvertneqq': '\\u2268\\uFE00',\n 'lvnE': '\\u2268\\uFE00',\n 'mDDot': '\\u223A',\n 'macr': '\\u00AF',\n 'strns': '\\u00AF',\n 'male': '\\u2642',\n 'malt': '\\u2720',\n 'maltese': '\\u2720',\n 'marker': '\\u25AE',\n 'mcomma': '\\u2A29',\n 'mcy': '\\u043C',\n 'mdash': '\\u2014',\n 'mfr': '\\uD835\\uDD2A',\n 'mho': '\\u2127',\n 'micro': '\\u00B5',\n 'midcir': '\\u2AF0',\n 'minus': '\\u2212',\n 'minusdu': '\\u2A2A',\n 'mlcp': '\\u2ADB',\n 'models': '\\u22A7',\n 'mopf': '\\uD835\\uDD5E',\n 'mscr': '\\uD835\\uDCC2',\n 'mu': '\\u03BC',\n 'multimap': '\\u22B8',\n 'mumap': '\\u22B8',\n 'nGg': '\\u22D9\\u0338',\n 'nGt': '\\u226B\\u20D2',\n 'nLeftarrow': '\\u21CD',\n 'nlArr': '\\u21CD',\n 'nLeftrightarrow': '\\u21CE',\n 'nhArr': '\\u21CE',\n 'nLl': '\\u22D8\\u0338',\n 'nLt': '\\u226A\\u20D2',\n 'nRightarrow': '\\u21CF',\n 'nrArr': '\\u21CF',\n 'nVDash': '\\u22AF',\n 'nVdash': '\\u22AE',\n 'nacute': '\\u0144',\n 'nang': '\\u2220\\u20D2',\n 'napE': '\\u2A70\\u0338',\n 'napid': '\\u224B\\u0338',\n 'napos': '\\u0149',\n 'natur': '\\u266E',\n 'natural': '\\u266E',\n 'ncap': '\\u2A43',\n 'ncaron': '\\u0148',\n 'ncedil': '\\u0146',\n 'ncongdot': '\\u2A6D\\u0338',\n 'ncup': '\\u2A42',\n 'ncy': '\\u043D',\n 'ndash': '\\u2013',\n 'neArr': '\\u21D7',\n 'nearhk': '\\u2924',\n 'nedot': '\\u2250\\u0338',\n 'nesear': '\\u2928',\n 'toea': '\\u2928',\n 'nfr': '\\uD835\\uDD2B',\n 'nharr': '\\u21AE',\n 'nleftrightarrow': '\\u21AE',\n 'nhpar': '\\u2AF2',\n 'nis': '\\u22FC',\n 'nisd': '\\u22FA',\n 'njcy': '\\u045A',\n 'nlE': '\\u2266\\u0338',\n 'nleqq': '\\u2266\\u0338',\n 'nlarr': '\\u219A',\n 'nleftarrow': '\\u219A',\n 'nldr': '\\u2025',\n 'nopf': '\\uD835\\uDD5F',\n 'not': '\\u00AC',\n 'notinE': '\\u22F9\\u0338',\n 'notindot': '\\u22F5\\u0338',\n 'notinvb': '\\u22F7',\n 'notinvc': '\\u22F6',\n 'notnivb': '\\u22FE',\n 'notnivc': '\\u22FD',\n 'nparsl': '\\u2AFD\\u20E5',\n 'npart': '\\u2202\\u0338',\n 'npolint': '\\u2A14',\n 'nrarr': '\\u219B',\n 'nrightarrow': '\\u219B',\n 'nrarrc': '\\u2933\\u0338',\n 'nrarrw': '\\u219D\\u0338',\n 'nscr': '\\uD835\\uDCC3',\n 'nsub': '\\u2284',\n 'nsubE': '\\u2AC5\\u0338',\n 'nsubseteqq': '\\u2AC5\\u0338',\n 'nsup': '\\u2285',\n 'nsupE': '\\u2AC6\\u0338',\n 'nsupseteqq': '\\u2AC6\\u0338',\n 'ntilde': '\\u00F1',\n 'nu': '\\u03BD',\n 'num': '\\u0023',\n 'numero': '\\u2116',\n 'numsp': '\\u2007',\n 'nvDash': '\\u22AD',\n 'nvHarr': '\\u2904',\n 'nvap': '\\u224D\\u20D2',\n 'nvdash': '\\u22AC',\n 'nvge': '\\u2265\\u20D2',\n 'nvgt': '\\u003E\\u20D2',\n 'nvinfin': '\\u29DE',\n 'nvlArr': '\\u2902',\n 'nvle': '\\u2264\\u20D2',\n 'nvlt': '\\u003C\\u20D2',\n 'nvltrie': '\\u22B4\\u20D2',\n 'nvrArr': '\\u2903',\n 'nvrtrie': '\\u22B5\\u20D2',\n 'nvsim': '\\u223C\\u20D2',\n 'nwArr': '\\u21D6',\n 'nwarhk': '\\u2923',\n 'nwnear': '\\u2927',\n 'oacute': '\\u00F3',\n 'ocirc': '\\u00F4',\n 'ocy': '\\u043E',\n 'odblac': '\\u0151',\n 'odiv': '\\u2A38',\n 'odsold': '\\u29BC',\n 'oelig': '\\u0153',\n 'ofcir': '\\u29BF',\n 'ofr': '\\uD835\\uDD2C',\n 'ogon': '\\u02DB',\n 'ograve': '\\u00F2',\n 'ogt': '\\u29C1',\n 'ohbar': '\\u29B5',\n 'olcir': '\\u29BE',\n 'olcross': '\\u29BB',\n 'olt': '\\u29C0',\n 'omacr': '\\u014D',\n 'omega': '\\u03C9',\n 'omicron': '\\u03BF',\n 'omid': '\\u29B6',\n 'oopf': '\\uD835\\uDD60',\n 'opar': '\\u29B7',\n 'operp': '\\u29B9',\n 'or': '\\u2228',\n 'vee': '\\u2228',\n 'ord': '\\u2A5D',\n 'order': '\\u2134',\n 'orderof': '\\u2134',\n 'oscr': '\\u2134',\n 'ordf': '\\u00AA',\n 'ordm': '\\u00BA',\n 'origof': '\\u22B6',\n 'oror': '\\u2A56',\n 'orslope': '\\u2A57',\n 'orv': '\\u2A5B',\n 'oslash': '\\u00F8',\n 'osol': '\\u2298',\n 'otilde': '\\u00F5',\n 'otimesas': '\\u2A36',\n 'ouml': '\\u00F6',\n 'ovbar': '\\u233D',\n 'para': '\\u00B6',\n 'parsim': '\\u2AF3',\n 'parsl': '\\u2AFD',\n 'pcy': '\\u043F',\n 'percnt': '\\u0025',\n 'period': '\\u002E',\n 'permil': '\\u2030',\n 'pertenk': '\\u2031',\n 'pfr': '\\uD835\\uDD2D',\n 'phi': '\\u03C6',\n 'phiv': '\\u03D5',\n 'straightphi': '\\u03D5',\n 'varphi': '\\u03D5',\n 'phone': '\\u260E',\n 'pi': '\\u03C0',\n 'piv': '\\u03D6',\n 'varpi': '\\u03D6',\n 'planckh': '\\u210E',\n 'plus': '\\u002B',\n 'plusacir': '\\u2A23',\n 'pluscir': '\\u2A22',\n 'plusdu': '\\u2A25',\n 'pluse': '\\u2A72',\n 'plussim': '\\u2A26',\n 'plustwo': '\\u2A27',\n 'pointint': '\\u2A15',\n 'popf': '\\uD835\\uDD61',\n 'pound': '\\u00A3',\n 'prE': '\\u2AB3',\n 'prap': '\\u2AB7',\n 'precapprox': '\\u2AB7',\n 'precnapprox': '\\u2AB9',\n 'prnap': '\\u2AB9',\n 'precneqq': '\\u2AB5',\n 'prnE': '\\u2AB5',\n 'precnsim': '\\u22E8',\n 'prnsim': '\\u22E8',\n 'prime': '\\u2032',\n 'profalar': '\\u232E',\n 'profline': '\\u2312',\n 'profsurf': '\\u2313',\n 'prurel': '\\u22B0',\n 'pscr': '\\uD835\\uDCC5',\n 'psi': '\\u03C8',\n 'puncsp': '\\u2008',\n 'qfr': '\\uD835\\uDD2E',\n 'qopf': '\\uD835\\uDD62',\n 'qprime': '\\u2057',\n 'qscr': '\\uD835\\uDCC6',\n 'quatint': '\\u2A16',\n 'quest': '\\u003F',\n 'rAtail': '\\u291C',\n 'rHar': '\\u2964',\n 'race': '\\u223D\\u0331',\n 'racute': '\\u0155',\n 'raemptyv': '\\u29B3',\n 'rangd': '\\u2992',\n 'range': '\\u29A5',\n 'raquo': '\\u00BB',\n 'rarrap': '\\u2975',\n 'rarrbfs': '\\u2920',\n 'rarrc': '\\u2933',\n 'rarrfs': '\\u291E',\n 'rarrpl': '\\u2945',\n 'rarrsim': '\\u2974',\n 'rarrtl': '\\u21A3',\n 'rightarrowtail': '\\u21A3',\n 'rarrw': '\\u219D',\n 'rightsquigarrow': '\\u219D',\n 'ratail': '\\u291A',\n 'ratio': '\\u2236',\n 'rbbrk': '\\u2773',\n 'rbrace': '\\u007D',\n 'rcub': '\\u007D',\n 'rbrack': '\\u005D',\n 'rsqb': '\\u005D',\n 'rbrke': '\\u298C',\n 'rbrksld': '\\u298E',\n 'rbrkslu': '\\u2990',\n 'rcaron': '\\u0159',\n 'rcedil': '\\u0157',\n 'rcy': '\\u0440',\n 'rdca': '\\u2937',\n 'rdldhar': '\\u2969',\n 'rdsh': '\\u21B3',\n 'rect': '\\u25AD',\n 'rfisht': '\\u297D',\n 'rfr': '\\uD835\\uDD2F',\n 'rharul': '\\u296C',\n 'rho': '\\u03C1',\n 'rhov': '\\u03F1',\n 'varrho': '\\u03F1',\n 'rightrightarrows': '\\u21C9',\n 'rrarr': '\\u21C9',\n 'rightthreetimes': '\\u22CC',\n 'rthree': '\\u22CC',\n 'ring': '\\u02DA',\n 'rlm': '\\u200F',\n 'rmoust': '\\u23B1',\n 'rmoustache': '\\u23B1',\n 'rnmid': '\\u2AEE',\n 'roang': '\\u27ED',\n 'roarr': '\\u21FE',\n 'ropar': '\\u2986',\n 'ropf': '\\uD835\\uDD63',\n 'roplus': '\\u2A2E',\n 'rotimes': '\\u2A35',\n 'rpar': '\\u0029',\n 'rpargt': '\\u2994',\n 'rppolint': '\\u2A12',\n 'rsaquo': '\\u203A',\n 'rscr': '\\uD835\\uDCC7',\n 'rtimes': '\\u22CA',\n 'rtri': '\\u25B9',\n 'triangleright': '\\u25B9',\n 'rtriltri': '\\u29CE',\n 'ruluhar': '\\u2968',\n 'rx': '\\u211E',\n 'sacute': '\\u015B',\n 'scE': '\\u2AB4',\n 'scap': '\\u2AB8',\n 'succapprox': '\\u2AB8',\n 'scaron': '\\u0161',\n 'scedil': '\\u015F',\n 'scirc': '\\u015D',\n 'scnE': '\\u2AB6',\n 'succneqq': '\\u2AB6',\n 'scnap': '\\u2ABA',\n 'succnapprox': '\\u2ABA',\n 'scnsim': '\\u22E9',\n 'succnsim': '\\u22E9',\n 'scpolint': '\\u2A13',\n 'scy': '\\u0441',\n 'sdot': '\\u22C5',\n 'sdote': '\\u2A66',\n 'seArr': '\\u21D8',\n 'sect': '\\u00A7',\n 'semi': '\\u003B',\n 'seswar': '\\u2929',\n 'tosa': '\\u2929',\n 'sext': '\\u2736',\n 'sfr': '\\uD835\\uDD30',\n 'sharp': '\\u266F',\n 'shchcy': '\\u0449',\n 'shcy': '\\u0448',\n 'shy': '\\u00AD',\n 'sigma': '\\u03C3',\n 'sigmaf': '\\u03C2',\n 'sigmav': '\\u03C2',\n 'varsigma': '\\u03C2',\n 'simdot': '\\u2A6A',\n 'simg': '\\u2A9E',\n 'simgE': '\\u2AA0',\n 'siml': '\\u2A9D',\n 'simlE': '\\u2A9F',\n 'simne': '\\u2246',\n 'simplus': '\\u2A24',\n 'simrarr': '\\u2972',\n 'smashp': '\\u2A33',\n 'smeparsl': '\\u29E4',\n 'smile': '\\u2323',\n 'ssmile': '\\u2323',\n 'smt': '\\u2AAA',\n 'smte': '\\u2AAC',\n 'smtes': '\\u2AAC\\uFE00',\n 'softcy': '\\u044C',\n 'sol': '\\u002F',\n 'solb': '\\u29C4',\n 'solbar': '\\u233F',\n 'sopf': '\\uD835\\uDD64',\n 'spades': '\\u2660',\n 'spadesuit': '\\u2660',\n 'sqcaps': '\\u2293\\uFE00',\n 'sqcups': '\\u2294\\uFE00',\n 'sscr': '\\uD835\\uDCC8',\n 'star': '\\u2606',\n 'sub': '\\u2282',\n 'subset': '\\u2282',\n 'subE': '\\u2AC5',\n 'subseteqq': '\\u2AC5',\n 'subdot': '\\u2ABD',\n 'subedot': '\\u2AC3',\n 'submult': '\\u2AC1',\n 'subnE': '\\u2ACB',\n 'subsetneqq': '\\u2ACB',\n 'subne': '\\u228A',\n 'subsetneq': '\\u228A',\n 'subplus': '\\u2ABF',\n 'subrarr': '\\u2979',\n 'subsim': '\\u2AC7',\n 'subsub': '\\u2AD5',\n 'subsup': '\\u2AD3',\n 'sung': '\\u266A',\n 'sup1': '\\u00B9',\n 'sup2': '\\u00B2',\n 'sup3': '\\u00B3',\n 'supE': '\\u2AC6',\n 'supseteqq': '\\u2AC6',\n 'supdot': '\\u2ABE',\n 'supdsub': '\\u2AD8',\n 'supedot': '\\u2AC4',\n 'suphsol': '\\u27C9',\n 'suphsub': '\\u2AD7',\n 'suplarr': '\\u297B',\n 'supmult': '\\u2AC2',\n 'supnE': '\\u2ACC',\n 'supsetneqq': '\\u2ACC',\n 'supne': '\\u228B',\n 'supsetneq': '\\u228B',\n 'supplus': '\\u2AC0',\n 'supsim': '\\u2AC8',\n 'supsub': '\\u2AD4',\n 'supsup': '\\u2AD6',\n 'swArr': '\\u21D9',\n 'swnwar': '\\u292A',\n 'szlig': '\\u00DF',\n 'target': '\\u2316',\n 'tau': '\\u03C4',\n 'tcaron': '\\u0165',\n 'tcedil': '\\u0163',\n 'tcy': '\\u0442',\n 'telrec': '\\u2315',\n 'tfr': '\\uD835\\uDD31',\n 'theta': '\\u03B8',\n 'thetasym': '\\u03D1',\n 'thetav': '\\u03D1',\n 'vartheta': '\\u03D1',\n 'thorn': '\\u00FE',\n 'times': '\\u00D7',\n 'timesbar': '\\u2A31',\n 'timesd': '\\u2A30',\n 'topbot': '\\u2336',\n 'topcir': '\\u2AF1',\n 'topf': '\\uD835\\uDD65',\n 'topfork': '\\u2ADA',\n 'tprime': '\\u2034',\n 'triangle': '\\u25B5',\n 'utri': '\\u25B5',\n 'triangleq': '\\u225C',\n 'trie': '\\u225C',\n 'tridot': '\\u25EC',\n 'triminus': '\\u2A3A',\n 'triplus': '\\u2A39',\n 'trisb': '\\u29CD',\n 'tritime': '\\u2A3B',\n 'trpezium': '\\u23E2',\n 'tscr': '\\uD835\\uDCC9',\n 'tscy': '\\u0446',\n 'tshcy': '\\u045B',\n 'tstrok': '\\u0167',\n 'uHar': '\\u2963',\n 'uacute': '\\u00FA',\n 'ubrcy': '\\u045E',\n 'ubreve': '\\u016D',\n 'ucirc': '\\u00FB',\n 'ucy': '\\u0443',\n 'udblac': '\\u0171',\n 'ufisht': '\\u297E',\n 'ufr': '\\uD835\\uDD32',\n 'ugrave': '\\u00F9',\n 'uhblk': '\\u2580',\n 'ulcorn': '\\u231C',\n 'ulcorner': '\\u231C',\n 'ulcrop': '\\u230F',\n 'ultri': '\\u25F8',\n 'umacr': '\\u016B',\n 'uogon': '\\u0173',\n 'uopf': '\\uD835\\uDD66',\n 'upsi': '\\u03C5',\n 'upsilon': '\\u03C5',\n 'upuparrows': '\\u21C8',\n 'uuarr': '\\u21C8',\n 'urcorn': '\\u231D',\n 'urcorner': '\\u231D',\n 'urcrop': '\\u230E',\n 'uring': '\\u016F',\n 'urtri': '\\u25F9',\n 'uscr': '\\uD835\\uDCCA',\n 'utdot': '\\u22F0',\n 'utilde': '\\u0169',\n 'uuml': '\\u00FC',\n 'uwangle': '\\u29A7',\n 'vBar': '\\u2AE8',\n 'vBarv': '\\u2AE9',\n 'vangrt': '\\u299C',\n 'varsubsetneq': '\\u228A\\uFE00',\n 'vsubne': '\\u228A\\uFE00',\n 'varsubsetneqq': '\\u2ACB\\uFE00',\n 'vsubnE': '\\u2ACB\\uFE00',\n 'varsupsetneq': '\\u228B\\uFE00',\n 'vsupne': '\\u228B\\uFE00',\n 'varsupsetneqq': '\\u2ACC\\uFE00',\n 'vsupnE': '\\u2ACC\\uFE00',\n 'vcy': '\\u0432',\n 'veebar': '\\u22BB',\n 'veeeq': '\\u225A',\n 'vellip': '\\u22EE',\n 'vfr': '\\uD835\\uDD33',\n 'vopf': '\\uD835\\uDD67',\n 'vscr': '\\uD835\\uDCCB',\n 'vzigzag': '\\u299A',\n 'wcirc': '\\u0175',\n 'wedbar': '\\u2A5F',\n 'wedgeq': '\\u2259',\n 'weierp': '\\u2118',\n 'wp': '\\u2118',\n 'wfr': '\\uD835\\uDD34',\n 'wopf': '\\uD835\\uDD68',\n 'wscr': '\\uD835\\uDCCC',\n 'xfr': '\\uD835\\uDD35',\n 'xi': '\\u03BE',\n 'xnis': '\\u22FB',\n 'xopf': '\\uD835\\uDD69',\n 'xscr': '\\uD835\\uDCCD',\n 'yacute': '\\u00FD',\n 'yacy': '\\u044F',\n 'ycirc': '\\u0177',\n 'ycy': '\\u044B',\n 'yen': '\\u00A5',\n 'yfr': '\\uD835\\uDD36',\n 'yicy': '\\u0457',\n 'yopf': '\\uD835\\uDD6A',\n 'yscr': '\\uD835\\uDCCE',\n 'yucy': '\\u044E',\n 'yuml': '\\u00FF',\n 'zacute': '\\u017A',\n 'zcaron': '\\u017E',\n 'zcy': '\\u0437',\n 'zdot': '\\u017C',\n 'zeta': '\\u03B6',\n 'zfr': '\\uD835\\uDD37',\n 'zhcy': '\\u0436',\n 'zigrarr': '\\u21DD',\n 'zopf': '\\uD835\\uDD6B',\n 'zscr': '\\uD835\\uDCCF',\n 'zwj': '\\u200D',\n 'zwnj': '\\u200C'\n};\n// The &ngsp; pseudo-entity is denoting a space. see:\n// https://github.com/dart-lang/angular/blob/0bb611387d29d65b5af7f9d2515ab571fd3fbee4/_tests/test/compiler/preserve_whitespace_test.dart\nconst NGSP_UNICODE = '\\uE500';\nNAMED_ENTITIES['ngsp'] = NGSP_UNICODE;\n\nclass TokenError extends ParseError {\n constructor(errorMsg, tokenType, span) {\n super(span, errorMsg);\n this.tokenType = tokenType;\n }\n}\nclass TokenizeResult {\n constructor(tokens, errors, nonNormalizedIcuExpressions) {\n this.tokens = tokens;\n this.errors = errors;\n this.nonNormalizedIcuExpressions = nonNormalizedIcuExpressions;\n }\n}\nfunction tokenize(source, url, getTagDefinition, options = {}) {\n const tokenizer = new _Tokenizer(new ParseSourceFile(source, url), getTagDefinition, options);\n tokenizer.tokenize();\n return new TokenizeResult(mergeTextTokens(tokenizer.tokens), tokenizer.errors, tokenizer.nonNormalizedIcuExpressions);\n}\nconst _CR_OR_CRLF_REGEXP = /\\r\\n?/g;\nfunction _unexpectedCharacterErrorMsg(charCode) {\n const char = charCode === $EOF ? 'EOF' : String.fromCharCode(charCode);\n return `Unexpected character \"${char}\"`;\n}\nfunction _unknownEntityErrorMsg(entitySrc) {\n return `Unknown entity \"${entitySrc}\" - use the \"&#;\" or \"&#x;\" syntax`;\n}\nfunction _unparsableEntityErrorMsg(type, entityStr) {\n return `Unable to parse entity \"${entityStr}\" - ${type} character reference entities must end with \";\"`;\n}\nvar CharacterReferenceType;\n(function (CharacterReferenceType) {\n CharacterReferenceType[\"HEX\"] = \"hexadecimal\";\n CharacterReferenceType[\"DEC\"] = \"decimal\";\n})(CharacterReferenceType || (CharacterReferenceType = {}));\nclass _ControlFlowError {\n constructor(error) {\n this.error = error;\n }\n}\n// See https://www.w3.org/TR/html51/syntax.html#writing-html-documents\nclass _Tokenizer {\n /**\n * @param _file The html source file being tokenized.\n * @param _getTagDefinition A function that will retrieve a tag definition for a given tag name.\n * @param options Configuration of the tokenization.\n */\n constructor(_file, _getTagDefinition, options) {\n this._getTagDefinition = _getTagDefinition;\n this._currentTokenStart = null;\n this._currentTokenType = null;\n this._expansionCaseStack = [];\n this._inInterpolation = false;\n this.tokens = [];\n this.errors = [];\n this.nonNormalizedIcuExpressions = [];\n this._tokenizeIcu = options.tokenizeExpansionForms || false;\n this._interpolationConfig = options.interpolationConfig || DEFAULT_INTERPOLATION_CONFIG;\n this._leadingTriviaCodePoints =\n options.leadingTriviaChars && options.leadingTriviaChars.map(c => c.codePointAt(0) || 0);\n const range = options.range || { endPos: _file.content.length, startPos: 0, startLine: 0, startCol: 0 };\n this._cursor = options.escapedString ? new EscapedCharacterCursor(_file, range) :\n new PlainCharacterCursor(_file, range);\n this._preserveLineEndings = options.preserveLineEndings || false;\n this._escapedString = options.escapedString || false;\n this._i18nNormalizeLineEndingsInICUs = options.i18nNormalizeLineEndingsInICUs || false;\n try {\n this._cursor.init();\n }\n catch (e) {\n this.handleError(e);\n }\n }\n _processCarriageReturns(content) {\n if (this._preserveLineEndings) {\n return content;\n }\n // https://www.w3.org/TR/html51/syntax.html#preprocessing-the-input-stream\n // In order to keep the original position in the source, we can not\n // pre-process it.\n // Instead CRs are processed right before instantiating the tokens.\n return content.replace(_CR_OR_CRLF_REGEXP, '\\n');\n }\n tokenize() {\n while (this._cursor.peek() !== $EOF) {\n const start = this._cursor.clone();\n try {\n if (this._attemptCharCode($LT)) {\n if (this._attemptCharCode($BANG)) {\n if (this._attemptCharCode($LBRACKET)) {\n this._consumeCdata(start);\n }\n else if (this._attemptCharCode($MINUS)) {\n this._consumeComment(start);\n }\n else {\n this._consumeDocType(start);\n }\n }\n else if (this._attemptCharCode($SLASH)) {\n this._consumeTagClose(start);\n }\n else {\n this._consumeTagOpen(start);\n }\n }\n else if (!(this._tokenizeIcu && this._tokenizeExpansionForm())) {\n // In (possibly interpolated) text the end of the text is given by `isTextEnd()`, while\n // the premature end of an interpolation is given by the start of a new HTML element.\n this._consumeWithInterpolation(5 /* TokenType.TEXT */, 8 /* TokenType.INTERPOLATION */, () => this._isTextEnd(), () => this._isTagStart());\n }\n }\n catch (e) {\n this.handleError(e);\n }\n }\n this._beginToken(24 /* TokenType.EOF */);\n this._endToken([]);\n }\n /**\n * @returns whether an ICU token has been created\n * @internal\n */\n _tokenizeExpansionForm() {\n if (this.isExpansionFormStart()) {\n this._consumeExpansionFormStart();\n return true;\n }\n if (isExpansionCaseStart(this._cursor.peek()) && this._isInExpansionForm()) {\n this._consumeExpansionCaseStart();\n return true;\n }\n if (this._cursor.peek() === $RBRACE) {\n if (this._isInExpansionCase()) {\n this._consumeExpansionCaseEnd();\n return true;\n }\n if (this._isInExpansionForm()) {\n this._consumeExpansionFormEnd();\n return true;\n }\n }\n return false;\n }\n _beginToken(type, start = this._cursor.clone()) {\n this._currentTokenStart = start;\n this._currentTokenType = type;\n }\n _endToken(parts, end) {\n if (this._currentTokenStart === null) {\n throw new TokenError('Programming error - attempted to end a token when there was no start to the token', this._currentTokenType, this._cursor.getSpan(end));\n }\n if (this._currentTokenType === null) {\n throw new TokenError('Programming error - attempted to end a token which has no token type', null, this._cursor.getSpan(this._currentTokenStart));\n }\n const token = {\n type: this._currentTokenType,\n parts,\n sourceSpan: (end ?? this._cursor).getSpan(this._currentTokenStart, this._leadingTriviaCodePoints),\n };\n this.tokens.push(token);\n this._currentTokenStart = null;\n this._currentTokenType = null;\n return token;\n }\n _createError(msg, span) {\n if (this._isInExpansionForm()) {\n msg += ` (Do you have an unescaped \"{\" in your template? Use \"{{ '{' }}\") to escape it.)`;\n }\n const error = new TokenError(msg, this._currentTokenType, span);\n this._currentTokenStart = null;\n this._currentTokenType = null;\n return new _ControlFlowError(error);\n }\n handleError(e) {\n if (e instanceof CursorError) {\n e = this._createError(e.msg, this._cursor.getSpan(e.cursor));\n }\n if (e instanceof _ControlFlowError) {\n this.errors.push(e.error);\n }\n else {\n throw e;\n }\n }\n _attemptCharCode(charCode) {\n if (this._cursor.peek() === charCode) {\n this._cursor.advance();\n return true;\n }\n return false;\n }\n _attemptCharCodeCaseInsensitive(charCode) {\n if (compareCharCodeCaseInsensitive(this._cursor.peek(), charCode)) {\n this._cursor.advance();\n return true;\n }\n return false;\n }\n _requireCharCode(charCode) {\n const location = this._cursor.clone();\n if (!this._attemptCharCode(charCode)) {\n throw this._createError(_unexpectedCharacterErrorMsg(this._cursor.peek()), this._cursor.getSpan(location));\n }\n }\n _attemptStr(chars) {\n const len = chars.length;\n if (this._cursor.charsLeft() < len) {\n return false;\n }\n const initialPosition = this._cursor.clone();\n for (let i = 0; i < len; i++) {\n if (!this._attemptCharCode(chars.charCodeAt(i))) {\n // If attempting to parse the string fails, we want to reset the parser\n // to where it was before the attempt\n this._cursor = initialPosition;\n return false;\n }\n }\n return true;\n }\n _attemptStrCaseInsensitive(chars) {\n for (let i = 0; i < chars.length; i++) {\n if (!this._attemptCharCodeCaseInsensitive(chars.charCodeAt(i))) {\n return false;\n }\n }\n return true;\n }\n _requireStr(chars) {\n const location = this._cursor.clone();\n if (!this._attemptStr(chars)) {\n throw this._createError(_unexpectedCharacterErrorMsg(this._cursor.peek()), this._cursor.getSpan(location));\n }\n }\n _attemptCharCodeUntilFn(predicate) {\n while (!predicate(this._cursor.peek())) {\n this._cursor.advance();\n }\n }\n _requireCharCodeUntilFn(predicate, len) {\n const start = this._cursor.clone();\n this._attemptCharCodeUntilFn(predicate);\n if (this._cursor.diff(start) < len) {\n throw this._createError(_unexpectedCharacterErrorMsg(this._cursor.peek()), this._cursor.getSpan(start));\n }\n }\n _attemptUntilChar(char) {\n while (this._cursor.peek() !== char) {\n this._cursor.advance();\n }\n }\n _readChar() {\n // Don't rely upon reading directly from `_input` as the actual char value\n // may have been generated from an escape sequence.\n const char = String.fromCodePoint(this._cursor.peek());\n this._cursor.advance();\n return char;\n }\n _consumeEntity(textTokenType) {\n this._beginToken(9 /* TokenType.ENCODED_ENTITY */);\n const start = this._cursor.clone();\n this._cursor.advance();\n if (this._attemptCharCode($HASH)) {\n const isHex = this._attemptCharCode($x) || this._attemptCharCode($X);\n const codeStart = this._cursor.clone();\n this._attemptCharCodeUntilFn(isDigitEntityEnd);\n if (this._cursor.peek() != $SEMICOLON) {\n // Advance cursor to include the peeked character in the string provided to the error\n // message.\n this._cursor.advance();\n const entityType = isHex ? CharacterReferenceType.HEX : CharacterReferenceType.DEC;\n throw this._createError(_unparsableEntityErrorMsg(entityType, this._cursor.getChars(start)), this._cursor.getSpan());\n }\n const strNum = this._cursor.getChars(codeStart);\n this._cursor.advance();\n try {\n const charCode = parseInt(strNum, isHex ? 16 : 10);\n this._endToken([String.fromCharCode(charCode), this._cursor.getChars(start)]);\n }\n catch {\n throw this._createError(_unknownEntityErrorMsg(this._cursor.getChars(start)), this._cursor.getSpan());\n }\n }\n else {\n const nameStart = this._cursor.clone();\n this._attemptCharCodeUntilFn(isNamedEntityEnd);\n if (this._cursor.peek() != $SEMICOLON) {\n // No semicolon was found so abort the encoded entity token that was in progress, and treat\n // this as a text token\n this._beginToken(textTokenType, start);\n this._cursor = nameStart;\n this._endToken(['&']);\n }\n else {\n const name = this._cursor.getChars(nameStart);\n this._cursor.advance();\n const char = NAMED_ENTITIES[name];\n if (!char) {\n throw this._createError(_unknownEntityErrorMsg(name), this._cursor.getSpan(start));\n }\n this._endToken([char, `&${name};`]);\n }\n }\n }\n _consumeRawText(consumeEntities, endMarkerPredicate) {\n this._beginToken(consumeEntities ? 6 /* TokenType.ESCAPABLE_RAW_TEXT */ : 7 /* TokenType.RAW_TEXT */);\n const parts = [];\n while (true) {\n const tagCloseStart = this._cursor.clone();\n const foundEndMarker = endMarkerPredicate();\n this._cursor = tagCloseStart;\n if (foundEndMarker) {\n break;\n }\n if (consumeEntities && this._cursor.peek() === $AMPERSAND) {\n this._endToken([this._processCarriageReturns(parts.join(''))]);\n parts.length = 0;\n this._consumeEntity(6 /* TokenType.ESCAPABLE_RAW_TEXT */);\n this._beginToken(6 /* TokenType.ESCAPABLE_RAW_TEXT */);\n }\n else {\n parts.push(this._readChar());\n }\n }\n this._endToken([this._processCarriageReturns(parts.join(''))]);\n }\n _consumeComment(start) {\n this._beginToken(10 /* TokenType.COMMENT_START */, start);\n this._requireCharCode($MINUS);\n this._endToken([]);\n this._consumeRawText(false, () => this._attemptStr('-->'));\n this._beginToken(11 /* TokenType.COMMENT_END */);\n this._requireStr('-->');\n this._endToken([]);\n }\n _consumeCdata(start) {\n this._beginToken(12 /* TokenType.CDATA_START */, start);\n this._requireStr('CDATA[');\n this._endToken([]);\n this._consumeRawText(false, () => this._attemptStr(']]>'));\n this._beginToken(13 /* TokenType.CDATA_END */);\n this._requireStr(']]>');\n this._endToken([]);\n }\n _consumeDocType(start) {\n this._beginToken(18 /* TokenType.DOC_TYPE */, start);\n const contentStart = this._cursor.clone();\n this._attemptUntilChar($GT);\n const content = this._cursor.getChars(contentStart);\n this._cursor.advance();\n this._endToken([content]);\n }\n _consumePrefixAndName() {\n const nameOrPrefixStart = this._cursor.clone();\n let prefix = '';\n while (this._cursor.peek() !== $COLON && !isPrefixEnd(this._cursor.peek())) {\n this._cursor.advance();\n }\n let nameStart;\n if (this._cursor.peek() === $COLON) {\n prefix = this._cursor.getChars(nameOrPrefixStart);\n this._cursor.advance();\n nameStart = this._cursor.clone();\n }\n else {\n nameStart = nameOrPrefixStart;\n }\n this._requireCharCodeUntilFn(isNameEnd, prefix === '' ? 0 : 1);\n const name = this._cursor.getChars(nameStart);\n return [prefix, name];\n }\n _consumeTagOpen(start) {\n let tagName;\n let prefix;\n let openTagToken;\n try {\n if (!isAsciiLetter(this._cursor.peek())) {\n throw this._createError(_unexpectedCharacterErrorMsg(this._cursor.peek()), this._cursor.getSpan(start));\n }\n openTagToken = this._consumeTagOpenStart(start);\n prefix = openTagToken.parts[0];\n tagName = openTagToken.parts[1];\n this._attemptCharCodeUntilFn(isNotWhitespace);\n while (this._cursor.peek() !== $SLASH && this._cursor.peek() !== $GT &&\n this._cursor.peek() !== $LT && this._cursor.peek() !== $EOF) {\n this._consumeAttributeName();\n this._attemptCharCodeUntilFn(isNotWhitespace);\n if (this._attemptCharCode($EQ)) {\n this._attemptCharCodeUntilFn(isNotWhitespace);\n this._consumeAttributeValue();\n }\n this._attemptCharCodeUntilFn(isNotWhitespace);\n }\n this._consumeTagOpenEnd();\n }\n catch (e) {\n if (e instanceof _ControlFlowError) {\n if (openTagToken) {\n // We errored before we could close the opening tag, so it is incomplete.\n openTagToken.type = 4 /* TokenType.INCOMPLETE_TAG_OPEN */;\n }\n else {\n // When the start tag is invalid, assume we want a \"<\" as text.\n // Back to back text tokens are merged at the end.\n this._beginToken(5 /* TokenType.TEXT */, start);\n this._endToken(['<']);\n }\n return;\n }\n throw e;\n }\n const contentTokenType = this._getTagDefinition(tagName).getContentType(prefix);\n if (contentTokenType === TagContentType.RAW_TEXT) {\n this._consumeRawTextWithTagClose(prefix, tagName, false);\n }\n else if (contentTokenType === TagContentType.ESCAPABLE_RAW_TEXT) {\n this._consumeRawTextWithTagClose(prefix, tagName, true);\n }\n }\n _consumeRawTextWithTagClose(prefix, tagName, consumeEntities) {\n this._consumeRawText(consumeEntities, () => {\n if (!this._attemptCharCode($LT))\n return false;\n if (!this._attemptCharCode($SLASH))\n return false;\n this._attemptCharCodeUntilFn(isNotWhitespace);\n if (!this._attemptStrCaseInsensitive(tagName))\n return false;\n this._attemptCharCodeUntilFn(isNotWhitespace);\n return this._attemptCharCode($GT);\n });\n this._beginToken(3 /* TokenType.TAG_CLOSE */);\n this._requireCharCodeUntilFn(code => code === $GT, 3);\n this._cursor.advance(); // Consume the `>`\n this._endToken([prefix, tagName]);\n }\n _consumeTagOpenStart(start) {\n this._beginToken(0 /* TokenType.TAG_OPEN_START */, start);\n const parts = this._consumePrefixAndName();\n return this._endToken(parts);\n }\n _consumeAttributeName() {\n const attrNameStart = this._cursor.peek();\n if (attrNameStart === $SQ || attrNameStart === $DQ) {\n throw this._createError(_unexpectedCharacterErrorMsg(attrNameStart), this._cursor.getSpan());\n }\n this._beginToken(14 /* TokenType.ATTR_NAME */);\n const prefixAndName = this._consumePrefixAndName();\n this._endToken(prefixAndName);\n }\n _consumeAttributeValue() {\n let value;\n if (this._cursor.peek() === $SQ || this._cursor.peek() === $DQ) {\n const quoteChar = this._cursor.peek();\n this._consumeQuote(quoteChar);\n // In an attribute then end of the attribute value and the premature end to an interpolation\n // are both triggered by the `quoteChar`.\n const endPredicate = () => this._cursor.peek() === quoteChar;\n this._consumeWithInterpolation(16 /* TokenType.ATTR_VALUE_TEXT */, 17 /* TokenType.ATTR_VALUE_INTERPOLATION */, endPredicate, endPredicate);\n this._consumeQuote(quoteChar);\n }\n else {\n const endPredicate = () => isNameEnd(this._cursor.peek());\n this._consumeWithInterpolation(16 /* TokenType.ATTR_VALUE_TEXT */, 17 /* TokenType.ATTR_VALUE_INTERPOLATION */, endPredicate, endPredicate);\n }\n }\n _consumeQuote(quoteChar) {\n this._beginToken(15 /* TokenType.ATTR_QUOTE */);\n this._requireCharCode(quoteChar);\n this._endToken([String.fromCodePoint(quoteChar)]);\n }\n _consumeTagOpenEnd() {\n const tokenType = this._attemptCharCode($SLASH) ? 2 /* TokenType.TAG_OPEN_END_VOID */ : 1 /* TokenType.TAG_OPEN_END */;\n this._beginToken(tokenType);\n this._requireCharCode($GT);\n this._endToken([]);\n }\n _consumeTagClose(start) {\n this._beginToken(3 /* TokenType.TAG_CLOSE */, start);\n this._attemptCharCodeUntilFn(isNotWhitespace);\n const prefixAndName = this._consumePrefixAndName();\n this._attemptCharCodeUntilFn(isNotWhitespace);\n this._requireCharCode($GT);\n this._endToken(prefixAndName);\n }\n _consumeExpansionFormStart() {\n this._beginToken(19 /* TokenType.EXPANSION_FORM_START */);\n this._requireCharCode($LBRACE);\n this._endToken([]);\n this._expansionCaseStack.push(19 /* TokenType.EXPANSION_FORM_START */);\n this._beginToken(7 /* TokenType.RAW_TEXT */);\n const condition = this._readUntil($COMMA);\n const normalizedCondition = this._processCarriageReturns(condition);\n if (this._i18nNormalizeLineEndingsInICUs) {\n // We explicitly want to normalize line endings for this text.\n this._endToken([normalizedCondition]);\n }\n else {\n // We are not normalizing line endings.\n const conditionToken = this._endToken([condition]);\n if (normalizedCondition !== condition) {\n this.nonNormalizedIcuExpressions.push(conditionToken);\n }\n }\n this._requireCharCode($COMMA);\n this._attemptCharCodeUntilFn(isNotWhitespace);\n this._beginToken(7 /* TokenType.RAW_TEXT */);\n const type = this._readUntil($COMMA);\n this._endToken([type]);\n this._requireCharCode($COMMA);\n this._attemptCharCodeUntilFn(isNotWhitespace);\n }\n _consumeExpansionCaseStart() {\n this._beginToken(20 /* TokenType.EXPANSION_CASE_VALUE */);\n const value = this._readUntil($LBRACE).trim();\n this._endToken([value]);\n this._attemptCharCodeUntilFn(isNotWhitespace);\n this._beginToken(21 /* TokenType.EXPANSION_CASE_EXP_START */);\n this._requireCharCode($LBRACE);\n this._endToken([]);\n this._attemptCharCodeUntilFn(isNotWhitespace);\n this._expansionCaseStack.push(21 /* TokenType.EXPANSION_CASE_EXP_START */);\n }\n _consumeExpansionCaseEnd() {\n this._beginToken(22 /* TokenType.EXPANSION_CASE_EXP_END */);\n this._requireCharCode($RBRACE);\n this._endToken([]);\n this._attemptCharCodeUntilFn(isNotWhitespace);\n this._expansionCaseStack.pop();\n }\n _consumeExpansionFormEnd() {\n this._beginToken(23 /* TokenType.EXPANSION_FORM_END */);\n this._requireCharCode($RBRACE);\n this._endToken([]);\n this._expansionCaseStack.pop();\n }\n /**\n * Consume a string that may contain interpolation expressions.\n *\n * The first token consumed will be of `tokenType` and then there will be alternating\n * `interpolationTokenType` and `tokenType` tokens until the `endPredicate()` returns true.\n *\n * If an interpolation token ends prematurely it will have no end marker in its `parts` array.\n *\n * @param textTokenType the kind of tokens to interleave around interpolation tokens.\n * @param interpolationTokenType the kind of tokens that contain interpolation.\n * @param endPredicate a function that should return true when we should stop consuming.\n * @param endInterpolation a function that should return true if there is a premature end to an\n * interpolation expression - i.e. before we get to the normal interpolation closing marker.\n */\n _consumeWithInterpolation(textTokenType, interpolationTokenType, endPredicate, endInterpolation) {\n this._beginToken(textTokenType);\n const parts = [];\n while (!endPredicate()) {\n const current = this._cursor.clone();\n if (this._interpolationConfig && this._attemptStr(this._interpolationConfig.start)) {\n this._endToken([this._processCarriageReturns(parts.join(''))], current);\n parts.length = 0;\n this._consumeInterpolation(interpolationTokenType, current, endInterpolation);\n this._beginToken(textTokenType);\n }\n else if (this._cursor.peek() === $AMPERSAND) {\n this._endToken([this._processCarriageReturns(parts.join(''))]);\n parts.length = 0;\n this._consumeEntity(textTokenType);\n this._beginToken(textTokenType);\n }\n else {\n parts.push(this._readChar());\n }\n }\n // It is possible that an interpolation was started but not ended inside this text token.\n // Make sure that we reset the state of the lexer correctly.\n this._inInterpolation = false;\n this._endToken([this._processCarriageReturns(parts.join(''))]);\n }\n /**\n * Consume a block of text that has been interpreted as an Angular interpolation.\n *\n * @param interpolationTokenType the type of the interpolation token to generate.\n * @param interpolationStart a cursor that points to the start of this interpolation.\n * @param prematureEndPredicate a function that should return true if the next characters indicate\n * an end to the interpolation before its normal closing marker.\n */\n _consumeInterpolation(interpolationTokenType, interpolationStart, prematureEndPredicate) {\n const parts = [];\n this._beginToken(interpolationTokenType, interpolationStart);\n parts.push(this._interpolationConfig.start);\n // Find the end of the interpolation, ignoring content inside quotes.\n const expressionStart = this._cursor.clone();\n let inQuote = null;\n let inComment = false;\n while (this._cursor.peek() !== $EOF &&\n (prematureEndPredicate === null || !prematureEndPredicate())) {\n const current = this._cursor.clone();\n if (this._isTagStart()) {\n // We are starting what looks like an HTML element in the middle of this interpolation.\n // Reset the cursor to before the `<` character and end the interpolation token.\n // (This is actually wrong but here for backward compatibility).\n this._cursor = current;\n parts.push(this._getProcessedChars(expressionStart, current));\n this._endToken(parts);\n return;\n }\n if (inQuote === null) {\n if (this._attemptStr(this._interpolationConfig.end)) {\n // We are not in a string, and we hit the end interpolation marker\n parts.push(this._getProcessedChars(expressionStart, current));\n parts.push(this._interpolationConfig.end);\n this._endToken(parts);\n return;\n }\n else if (this._attemptStr('//')) {\n // Once we are in a comment we ignore any quotes\n inComment = true;\n }\n }\n const char = this._cursor.peek();\n this._cursor.advance();\n if (char === $BACKSLASH) {\n // Skip the next character because it was escaped.\n this._cursor.advance();\n }\n else if (char === inQuote) {\n // Exiting the current quoted string\n inQuote = null;\n }\n else if (!inComment && inQuote === null && isQuote(char)) {\n // Entering a new quoted string\n inQuote = char;\n }\n }\n // We hit EOF without finding a closing interpolation marker\n parts.push(this._getProcessedChars(expressionStart, this._cursor));\n this._endToken(parts);\n }\n _getProcessedChars(start, end) {\n return this._processCarriageReturns(end.getChars(start));\n }\n _isTextEnd() {\n if (this._isTagStart() || this._cursor.peek() === $EOF) {\n return true;\n }\n if (this._tokenizeIcu && !this._inInterpolation) {\n if (this.isExpansionFormStart()) {\n // start of an expansion form\n return true;\n }\n if (this._cursor.peek() === $RBRACE && this._isInExpansionCase()) {\n // end of and expansion case\n return true;\n }\n }\n return false;\n }\n /**\n * Returns true if the current cursor is pointing to the start of a tag\n * (opening/closing/comments/cdata/etc).\n */\n _isTagStart() {\n if (this._cursor.peek() === $LT) {\n // We assume that `<` followed by whitespace is not the start of an HTML element.\n const tmp = this._cursor.clone();\n tmp.advance();\n // If the next character is alphabetic, ! nor / then it is a tag start\n const code = tmp.peek();\n if (($a <= code && code <= $z) || ($A <= code && code <= $Z) ||\n code === $SLASH || code === $BANG) {\n return true;\n }\n }\n return false;\n }\n _readUntil(char) {\n const start = this._cursor.clone();\n this._attemptUntilChar(char);\n return this._cursor.getChars(start);\n }\n _isInExpansionCase() {\n return this._expansionCaseStack.length > 0 &&\n this._expansionCaseStack[this._expansionCaseStack.length - 1] ===\n 21 /* TokenType.EXPANSION_CASE_EXP_START */;\n }\n _isInExpansionForm() {\n return this._expansionCaseStack.length > 0 &&\n this._expansionCaseStack[this._expansionCaseStack.length - 1] ===\n 19 /* TokenType.EXPANSION_FORM_START */;\n }\n isExpansionFormStart() {\n if (this._cursor.peek() !== $LBRACE) {\n return false;\n }\n if (this._interpolationConfig) {\n const start = this._cursor.clone();\n const isInterpolation = this._attemptStr(this._interpolationConfig.start);\n this._cursor = start;\n return !isInterpolation;\n }\n return true;\n }\n}\nfunction isNotWhitespace(code) {\n return !isWhitespace(code) || code === $EOF;\n}\nfunction isNameEnd(code) {\n return isWhitespace(code) || code === $GT || code === $LT ||\n code === $SLASH || code === $SQ || code === $DQ || code === $EQ ||\n code === $EOF;\n}\nfunction isPrefixEnd(code) {\n return (code < $a || $z < code) && (code < $A || $Z < code) &&\n (code < $0 || code > $9);\n}\nfunction isDigitEntityEnd(code) {\n return code === $SEMICOLON || code === $EOF || !isAsciiHexDigit(code);\n}\nfunction isNamedEntityEnd(code) {\n return code === $SEMICOLON || code === $EOF || !isAsciiLetter(code);\n}\nfunction isExpansionCaseStart(peek) {\n return peek !== $RBRACE;\n}\nfunction compareCharCodeCaseInsensitive(code1, code2) {\n return toUpperCaseCharCode(code1) === toUpperCaseCharCode(code2);\n}\nfunction toUpperCaseCharCode(code) {\n return code >= $a && code <= $z ? code - $a + $A : code;\n}\nfunction mergeTextTokens(srcTokens) {\n const dstTokens = [];\n let lastDstToken = undefined;\n for (let i = 0; i < srcTokens.length; i++) {\n const token = srcTokens[i];\n if ((lastDstToken && lastDstToken.type === 5 /* TokenType.TEXT */ && token.type === 5 /* TokenType.TEXT */) ||\n (lastDstToken && lastDstToken.type === 16 /* TokenType.ATTR_VALUE_TEXT */ &&\n token.type === 16 /* TokenType.ATTR_VALUE_TEXT */)) {\n lastDstToken.parts[0] += token.parts[0];\n lastDstToken.sourceSpan.end = token.sourceSpan.end;\n }\n else {\n lastDstToken = token;\n dstTokens.push(lastDstToken);\n }\n }\n return dstTokens;\n}\nclass PlainCharacterCursor {\n constructor(fileOrCursor, range) {\n if (fileOrCursor instanceof PlainCharacterCursor) {\n this.file = fileOrCursor.file;\n this.input = fileOrCursor.input;\n this.end = fileOrCursor.end;\n const state = fileOrCursor.state;\n // Note: avoid using `{...fileOrCursor.state}` here as that has a severe performance penalty.\n // In ES5 bundles the object spread operator is translated into the `__assign` helper, which\n // is not optimized by VMs as efficiently as a raw object literal. Since this constructor is\n // called in tight loops, this difference matters.\n this.state = {\n peek: state.peek,\n offset: state.offset,\n line: state.line,\n column: state.column,\n };\n }\n else {\n if (!range) {\n throw new Error('Programming error: the range argument must be provided with a file argument.');\n }\n this.file = fileOrCursor;\n this.input = fileOrCursor.content;\n this.end = range.endPos;\n this.state = {\n peek: -1,\n offset: range.startPos,\n line: range.startLine,\n column: range.startCol,\n };\n }\n }\n clone() {\n return new PlainCharacterCursor(this);\n }\n peek() {\n return this.state.peek;\n }\n charsLeft() {\n return this.end - this.state.offset;\n }\n diff(other) {\n return this.state.offset - other.state.offset;\n }\n advance() {\n this.advanceState(this.state);\n }\n init() {\n this.updatePeek(this.state);\n }\n getSpan(start, leadingTriviaCodePoints) {\n start = start || this;\n let fullStart = start;\n if (leadingTriviaCodePoints) {\n while (this.diff(start) > 0 && leadingTriviaCodePoints.indexOf(start.peek()) !== -1) {\n if (fullStart === start) {\n start = start.clone();\n }\n start.advance();\n }\n }\n const startLocation = this.locationFromCursor(start);\n const endLocation = this.locationFromCursor(this);\n const fullStartLocation = fullStart !== start ? this.locationFromCursor(fullStart) : startLocation;\n return new ParseSourceSpan(startLocation, endLocation, fullStartLocation);\n }\n getChars(start) {\n return this.input.substring(start.state.offset, this.state.offset);\n }\n charAt(pos) {\n return this.input.charCodeAt(pos);\n }\n advanceState(state) {\n if (state.offset >= this.end) {\n this.state = state;\n throw new CursorError('Unexpected character \"EOF\"', this);\n }\n const currentChar = this.charAt(state.offset);\n if (currentChar === $LF) {\n state.line++;\n state.column = 0;\n }\n else if (!isNewLine(currentChar)) {\n state.column++;\n }\n state.offset++;\n this.updatePeek(state);\n }\n updatePeek(state) {\n state.peek = state.offset >= this.end ? $EOF : this.charAt(state.offset);\n }\n locationFromCursor(cursor) {\n return new ParseLocation(cursor.file, cursor.state.offset, cursor.state.line, cursor.state.column);\n }\n}\nclass EscapedCharacterCursor extends PlainCharacterCursor {\n constructor(fileOrCursor, range) {\n if (fileOrCursor instanceof EscapedCharacterCursor) {\n super(fileOrCursor);\n this.internalState = { ...fileOrCursor.internalState };\n }\n else {\n super(fileOrCursor, range);\n this.internalState = this.state;\n }\n }\n advance() {\n this.state = this.internalState;\n super.advance();\n this.processEscapeSequence();\n }\n init() {\n super.init();\n this.processEscapeSequence();\n }\n clone() {\n return new EscapedCharacterCursor(this);\n }\n getChars(start) {\n const cursor = start.clone();\n let chars = '';\n while (cursor.internalState.offset < this.internalState.offset) {\n chars += String.fromCodePoint(cursor.peek());\n cursor.advance();\n }\n return chars;\n }\n /**\n * Process the escape sequence that starts at the current position in the text.\n *\n * This method is called to ensure that `peek` has the unescaped value of escape sequences.\n */\n processEscapeSequence() {\n const peek = () => this.internalState.peek;\n if (peek() === $BACKSLASH) {\n // We have hit an escape sequence so we need the internal state to become independent\n // of the external state.\n this.internalState = { ...this.state };\n // Move past the backslash\n this.advanceState(this.internalState);\n // First check for standard control char sequences\n if (peek() === $n) {\n this.state.peek = $LF;\n }\n else if (peek() === $r) {\n this.state.peek = $CR;\n }\n else if (peek() === $v) {\n this.state.peek = $VTAB;\n }\n else if (peek() === $t) {\n this.state.peek = $TAB;\n }\n else if (peek() === $b) {\n this.state.peek = $BSPACE;\n }\n else if (peek() === $f) {\n this.state.peek = $FF;\n }\n // Now consider more complex sequences\n else if (peek() === $u) {\n // Unicode code-point sequence\n this.advanceState(this.internalState); // advance past the `u` char\n if (peek() === $LBRACE) {\n // Variable length Unicode, e.g. `\\x{123}`\n this.advanceState(this.internalState); // advance past the `{` char\n // Advance past the variable number of hex digits until we hit a `}` char\n const digitStart = this.clone();\n let length = 0;\n while (peek() !== $RBRACE) {\n this.advanceState(this.internalState);\n length++;\n }\n this.state.peek = this.decodeHexDigits(digitStart, length);\n }\n else {\n // Fixed length Unicode, e.g. `\\u1234`\n const digitStart = this.clone();\n this.advanceState(this.internalState);\n this.advanceState(this.internalState);\n this.advanceState(this.internalState);\n this.state.peek = this.decodeHexDigits(digitStart, 4);\n }\n }\n else if (peek() === $x) {\n // Hex char code, e.g. `\\x2F`\n this.advanceState(this.internalState); // advance past the `x` char\n const digitStart = this.clone();\n this.advanceState(this.internalState);\n this.state.peek = this.decodeHexDigits(digitStart, 2);\n }\n else if (isOctalDigit(peek())) {\n // Octal char code, e.g. `\\012`,\n let octal = '';\n let length = 0;\n let previous = this.clone();\n while (isOctalDigit(peek()) && length < 3) {\n previous = this.clone();\n octal += String.fromCodePoint(peek());\n this.advanceState(this.internalState);\n length++;\n }\n this.state.peek = parseInt(octal, 8);\n // Backup one char\n this.internalState = previous.internalState;\n }\n else if (isNewLine(this.internalState.peek)) {\n // Line continuation `\\` followed by a new line\n this.advanceState(this.internalState); // advance over the newline\n this.state = this.internalState;\n }\n else {\n // If none of the `if` blocks were executed then we just have an escaped normal character.\n // In that case we just, effectively, skip the backslash from the character.\n this.state.peek = this.internalState.peek;\n }\n }\n }\n decodeHexDigits(start, length) {\n const hex = this.input.slice(start.internalState.offset, start.internalState.offset + length);\n const charCode = parseInt(hex, 16);\n if (!isNaN(charCode)) {\n return charCode;\n }\n else {\n start.state = start.internalState;\n throw new CursorError('Invalid hexadecimal escape sequence', start);\n }\n }\n}\nclass CursorError {\n constructor(msg, cursor) {\n this.msg = msg;\n this.cursor = cursor;\n }\n}\n\nclass TreeError extends ParseError {\n static create(elementName, span, msg) {\n return new TreeError(elementName, span, msg);\n }\n constructor(elementName, span, msg) {\n super(span, msg);\n this.elementName = elementName;\n }\n}\nclass ParseTreeResult {\n constructor(rootNodes, errors) {\n this.rootNodes = rootNodes;\n this.errors = errors;\n }\n}\nclass Parser {\n constructor(getTagDefinition) {\n this.getTagDefinition = getTagDefinition;\n }\n parse(source, url, options) {\n const tokenizeResult = tokenize(source, url, this.getTagDefinition, options);\n const parser = new _TreeBuilder(tokenizeResult.tokens, this.getTagDefinition);\n parser.build();\n return new ParseTreeResult(parser.rootNodes, tokenizeResult.errors.concat(parser.errors));\n }\n}\nclass _TreeBuilder {\n constructor(tokens, getTagDefinition) {\n this.tokens = tokens;\n this.getTagDefinition = getTagDefinition;\n this._index = -1;\n this._elementStack = [];\n this.rootNodes = [];\n this.errors = [];\n this._advance();\n }\n build() {\n while (this._peek.type !== 24 /* TokenType.EOF */) {\n if (this._peek.type === 0 /* TokenType.TAG_OPEN_START */ ||\n this._peek.type === 4 /* TokenType.INCOMPLETE_TAG_OPEN */) {\n this._consumeStartTag(this._advance());\n }\n else if (this._peek.type === 3 /* TokenType.TAG_CLOSE */) {\n this._consumeEndTag(this._advance());\n }\n else if (this._peek.type === 12 /* TokenType.CDATA_START */) {\n this._closeVoidElement();\n this._consumeCdata(this._advance());\n }\n else if (this._peek.type === 10 /* TokenType.COMMENT_START */) {\n this._closeVoidElement();\n this._consumeComment(this._advance());\n }\n else if (this._peek.type === 5 /* TokenType.TEXT */ || this._peek.type === 7 /* TokenType.RAW_TEXT */ ||\n this._peek.type === 6 /* TokenType.ESCAPABLE_RAW_TEXT */) {\n this._closeVoidElement();\n this._consumeText(this._advance());\n }\n else if (this._peek.type === 19 /* TokenType.EXPANSION_FORM_START */) {\n this._consumeExpansion(this._advance());\n }\n else {\n // Skip all other tokens...\n this._advance();\n }\n }\n }\n _advance() {\n const prev = this._peek;\n if (this._index < this.tokens.length - 1) {\n // Note: there is always an EOF token at the end\n this._index++;\n }\n this._peek = this.tokens[this._index];\n return prev;\n }\n _advanceIf(type) {\n if (this._peek.type === type) {\n return this._advance();\n }\n return null;\n }\n _consumeCdata(_startToken) {\n this._consumeText(this._advance());\n this._advanceIf(13 /* TokenType.CDATA_END */);\n }\n _consumeComment(token) {\n const text = this._advanceIf(7 /* TokenType.RAW_TEXT */);\n this._advanceIf(11 /* TokenType.COMMENT_END */);\n const value = text != null ? text.parts[0].trim() : null;\n this._addToParent(new Comment(value, token.sourceSpan));\n }\n _consumeExpansion(token) {\n const switchValue = this._advance();\n const type = this._advance();\n const cases = [];\n // read =\n while (this._peek.type === 20 /* TokenType.EXPANSION_CASE_VALUE */) {\n const expCase = this._parseExpansionCase();\n if (!expCase)\n return; // error\n cases.push(expCase);\n }\n // read the final }\n if (this._peek.type !== 23 /* TokenType.EXPANSION_FORM_END */) {\n this.errors.push(TreeError.create(null, this._peek.sourceSpan, `Invalid ICU message. Missing '}'.`));\n return;\n }\n const sourceSpan = new ParseSourceSpan(token.sourceSpan.start, this._peek.sourceSpan.end, token.sourceSpan.fullStart);\n this._addToParent(new Expansion(switchValue.parts[0], type.parts[0], cases, sourceSpan, switchValue.sourceSpan));\n this._advance();\n }\n _parseExpansionCase() {\n const value = this._advance();\n // read {\n if (this._peek.type !== 21 /* TokenType.EXPANSION_CASE_EXP_START */) {\n this.errors.push(TreeError.create(null, this._peek.sourceSpan, `Invalid ICU message. Missing '{'.`));\n return null;\n }\n // read until }\n const start = this._advance();\n const exp = this._collectExpansionExpTokens(start);\n if (!exp)\n return null;\n const end = this._advance();\n exp.push({ type: 24 /* TokenType.EOF */, parts: [], sourceSpan: end.sourceSpan });\n // parse everything in between { and }\n const expansionCaseParser = new _TreeBuilder(exp, this.getTagDefinition);\n expansionCaseParser.build();\n if (expansionCaseParser.errors.length > 0) {\n this.errors = this.errors.concat(expansionCaseParser.errors);\n return null;\n }\n const sourceSpan = new ParseSourceSpan(value.sourceSpan.start, end.sourceSpan.end, value.sourceSpan.fullStart);\n const expSourceSpan = new ParseSourceSpan(start.sourceSpan.start, end.sourceSpan.end, start.sourceSpan.fullStart);\n return new ExpansionCase(value.parts[0], expansionCaseParser.rootNodes, sourceSpan, value.sourceSpan, expSourceSpan);\n }\n _collectExpansionExpTokens(start) {\n const exp = [];\n const expansionFormStack = [21 /* TokenType.EXPANSION_CASE_EXP_START */];\n while (true) {\n if (this._peek.type === 19 /* TokenType.EXPANSION_FORM_START */ ||\n this._peek.type === 21 /* TokenType.EXPANSION_CASE_EXP_START */) {\n expansionFormStack.push(this._peek.type);\n }\n if (this._peek.type === 22 /* TokenType.EXPANSION_CASE_EXP_END */) {\n if (lastOnStack(expansionFormStack, 21 /* TokenType.EXPANSION_CASE_EXP_START */)) {\n expansionFormStack.pop();\n if (expansionFormStack.length === 0)\n return exp;\n }\n else {\n this.errors.push(TreeError.create(null, start.sourceSpan, `Invalid ICU message. Missing '}'.`));\n return null;\n }\n }\n if (this._peek.type === 23 /* TokenType.EXPANSION_FORM_END */) {\n if (lastOnStack(expansionFormStack, 19 /* TokenType.EXPANSION_FORM_START */)) {\n expansionFormStack.pop();\n }\n else {\n this.errors.push(TreeError.create(null, start.sourceSpan, `Invalid ICU message. Missing '}'.`));\n return null;\n }\n }\n if (this._peek.type === 24 /* TokenType.EOF */) {\n this.errors.push(TreeError.create(null, start.sourceSpan, `Invalid ICU message. Missing '}'.`));\n return null;\n }\n exp.push(this._advance());\n }\n }\n _consumeText(token) {\n const tokens = [token];\n const startSpan = token.sourceSpan;\n let text = token.parts[0];\n if (text.length > 0 && text[0] === '\\n') {\n const parent = this._getParentElement();\n if (parent != null && parent.children.length === 0 &&\n this.getTagDefinition(parent.name).ignoreFirstLf) {\n text = text.substring(1);\n tokens[0] = { type: token.type, sourceSpan: token.sourceSpan, parts: [text] };\n }\n }\n while (this._peek.type === 8 /* TokenType.INTERPOLATION */ || this._peek.type === 5 /* TokenType.TEXT */ ||\n this._peek.type === 9 /* TokenType.ENCODED_ENTITY */) {\n token = this._advance();\n tokens.push(token);\n if (token.type === 8 /* TokenType.INTERPOLATION */) {\n // For backward compatibility we decode HTML entities that appear in interpolation\n // expressions. This is arguably a bug, but it could be a considerable breaking change to\n // fix it. It should be addressed in a larger project to refactor the entire parser/lexer\n // chain after View Engine has been removed.\n text += token.parts.join('').replace(/&([^;]+);/g, decodeEntity);\n }\n else if (token.type === 9 /* TokenType.ENCODED_ENTITY */) {\n text += token.parts[0];\n }\n else {\n text += token.parts.join('');\n }\n }\n if (text.length > 0) {\n const endSpan = token.sourceSpan;\n this._addToParent(new Text(text, new ParseSourceSpan(startSpan.start, endSpan.end, startSpan.fullStart, startSpan.details), tokens));\n }\n }\n _closeVoidElement() {\n const el = this._getParentElement();\n if (el && this.getTagDefinition(el.name).isVoid) {\n this._elementStack.pop();\n }\n }\n _consumeStartTag(startTagToken) {\n const [prefix, name] = startTagToken.parts;\n const attrs = [];\n while (this._peek.type === 14 /* TokenType.ATTR_NAME */) {\n attrs.push(this._consumeAttr(this._advance()));\n }\n const fullName = this._getElementFullName(prefix, name, this._getParentElement());\n let selfClosing = false;\n // Note: There could have been a tokenizer error\n // so that we don't get a token for the end tag...\n if (this._peek.type === 2 /* TokenType.TAG_OPEN_END_VOID */) {\n this._advance();\n selfClosing = true;\n const tagDef = this.getTagDefinition(fullName);\n if (!(tagDef.canSelfClose || getNsPrefix(fullName) !== null || tagDef.isVoid)) {\n this.errors.push(TreeError.create(fullName, startTagToken.sourceSpan, `Only void, custom and foreign elements can be self closed \"${startTagToken.parts[1]}\"`));\n }\n }\n else if (this._peek.type === 1 /* TokenType.TAG_OPEN_END */) {\n this._advance();\n selfClosing = false;\n }\n const end = this._peek.sourceSpan.fullStart;\n const span = new ParseSourceSpan(startTagToken.sourceSpan.start, end, startTagToken.sourceSpan.fullStart);\n // Create a separate `startSpan` because `span` will be modified when there is an `end` span.\n const startSpan = new ParseSourceSpan(startTagToken.sourceSpan.start, end, startTagToken.sourceSpan.fullStart);\n const el = new Element(fullName, attrs, [], span, startSpan, undefined);\n this._pushElement(el);\n if (selfClosing) {\n // Elements that are self-closed have their `endSourceSpan` set to the full span, as the\n // element start tag also represents the end tag.\n this._popElement(fullName, span);\n }\n else if (startTagToken.type === 4 /* TokenType.INCOMPLETE_TAG_OPEN */) {\n // We already know the opening tag is not complete, so it is unlikely it has a corresponding\n // close tag. Let's optimistically parse it as a full element and emit an error.\n this._popElement(fullName, null);\n this.errors.push(TreeError.create(fullName, span, `Opening tag \"${fullName}\" not terminated.`));\n }\n }\n _pushElement(el) {\n const parentEl = this._getParentElement();\n if (parentEl && this.getTagDefinition(parentEl.name).isClosedByChild(el.name)) {\n this._elementStack.pop();\n }\n this._addToParent(el);\n this._elementStack.push(el);\n }\n _consumeEndTag(endTagToken) {\n const fullName = this._getElementFullName(endTagToken.parts[0], endTagToken.parts[1], this._getParentElement());\n if (this.getTagDefinition(fullName).isVoid) {\n this.errors.push(TreeError.create(fullName, endTagToken.sourceSpan, `Void elements do not have end tags \"${endTagToken.parts[1]}\"`));\n }\n else if (!this._popElement(fullName, endTagToken.sourceSpan)) {\n const errMsg = `Unexpected closing tag \"${fullName}\". It may happen when the tag has already been closed by another tag. For more info see https://www.w3.org/TR/html5/syntax.html#closing-elements-that-have-implied-end-tags`;\n this.errors.push(TreeError.create(fullName, endTagToken.sourceSpan, errMsg));\n }\n }\n /**\n * Closes the nearest element with the tag name `fullName` in the parse tree.\n * `endSourceSpan` is the span of the closing tag, or null if the element does\n * not have a closing tag (for example, this happens when an incomplete\n * opening tag is recovered).\n */\n _popElement(fullName, endSourceSpan) {\n let unexpectedCloseTagDetected = false;\n for (let stackIndex = this._elementStack.length - 1; stackIndex >= 0; stackIndex--) {\n const el = this._elementStack[stackIndex];\n if (el.name === fullName) {\n // Record the parse span with the element that is being closed. Any elements that are\n // removed from the element stack at this point are closed implicitly, so they won't get\n // an end source span (as there is no explicit closing element).\n el.endSourceSpan = endSourceSpan;\n el.sourceSpan.end = endSourceSpan !== null ? endSourceSpan.end : el.sourceSpan.end;\n this._elementStack.splice(stackIndex, this._elementStack.length - stackIndex);\n return !unexpectedCloseTagDetected;\n }\n if (!this.getTagDefinition(el.name).closedByParent) {\n // Note that we encountered an unexpected close tag but continue processing the element\n // stack so we can assign an `endSourceSpan` if there is a corresponding start tag for this\n // end tag in the stack.\n unexpectedCloseTagDetected = true;\n }\n }\n return false;\n }\n _consumeAttr(attrName) {\n const fullName = mergeNsAndName(attrName.parts[0], attrName.parts[1]);\n let attrEnd = attrName.sourceSpan.end;\n // Consume any quote\n if (this._peek.type === 15 /* TokenType.ATTR_QUOTE */) {\n this._advance();\n }\n // Consume the attribute value\n let value = '';\n const valueTokens = [];\n let valueStartSpan = undefined;\n let valueEnd = undefined;\n // NOTE: We need to use a new variable `nextTokenType` here to hide the actual type of\n // `_peek.type` from TS. Otherwise TS will narrow the type of `_peek.type` preventing it from\n // being able to consider `ATTR_VALUE_INTERPOLATION` as an option. This is because TS is not\n // able to see that `_advance()` will actually mutate `_peek`.\n const nextTokenType = this._peek.type;\n if (nextTokenType === 16 /* TokenType.ATTR_VALUE_TEXT */) {\n valueStartSpan = this._peek.sourceSpan;\n valueEnd = this._peek.sourceSpan.end;\n while (this._peek.type === 16 /* TokenType.ATTR_VALUE_TEXT */ ||\n this._peek.type === 17 /* TokenType.ATTR_VALUE_INTERPOLATION */ ||\n this._peek.type === 9 /* TokenType.ENCODED_ENTITY */) {\n const valueToken = this._advance();\n valueTokens.push(valueToken);\n if (valueToken.type === 17 /* TokenType.ATTR_VALUE_INTERPOLATION */) {\n // For backward compatibility we decode HTML entities that appear in interpolation\n // expressions. This is arguably a bug, but it could be a considerable breaking change to\n // fix it. It should be addressed in a larger project to refactor the entire parser/lexer\n // chain after View Engine has been removed.\n value += valueToken.parts.join('').replace(/&([^;]+);/g, decodeEntity);\n }\n else if (valueToken.type === 9 /* TokenType.ENCODED_ENTITY */) {\n value += valueToken.parts[0];\n }\n else {\n value += valueToken.parts.join('');\n }\n valueEnd = attrEnd = valueToken.sourceSpan.end;\n }\n }\n // Consume any quote\n if (this._peek.type === 15 /* TokenType.ATTR_QUOTE */) {\n const quoteToken = this._advance();\n attrEnd = quoteToken.sourceSpan.end;\n }\n const valueSpan = valueStartSpan && valueEnd &&\n new ParseSourceSpan(valueStartSpan.start, valueEnd, valueStartSpan.fullStart);\n return new Attribute(fullName, value, new ParseSourceSpan(attrName.sourceSpan.start, attrEnd, attrName.sourceSpan.fullStart), attrName.sourceSpan, valueSpan, valueTokens.length > 0 ? valueTokens : undefined, undefined);\n }\n _getParentElement() {\n return this._elementStack.length > 0 ? this._elementStack[this._elementStack.length - 1] : null;\n }\n _addToParent(node) {\n const parent = this._getParentElement();\n if (parent != null) {\n parent.children.push(node);\n }\n else {\n this.rootNodes.push(node);\n }\n }\n _getElementFullName(prefix, localName, parentElement) {\n if (prefix === '') {\n prefix = this.getTagDefinition(localName).implicitNamespacePrefix || '';\n if (prefix === '' && parentElement != null) {\n const parentTagName = splitNsName(parentElement.name)[1];\n const parentTagDefinition = this.getTagDefinition(parentTagName);\n if (!parentTagDefinition.preventNamespaceInheritance) {\n prefix = getNsPrefix(parentElement.name);\n }\n }\n }\n return mergeNsAndName(prefix, localName);\n }\n}\nfunction lastOnStack(stack, element) {\n return stack.length > 0 && stack[stack.length - 1] === element;\n}\n/**\n * Decode the `entity` string, which we believe is the contents of an HTML entity.\n *\n * If the string is not actually a valid/known entity then just return the original `match` string.\n */\nfunction decodeEntity(match, entity) {\n if (NAMED_ENTITIES[entity] !== undefined) {\n return NAMED_ENTITIES[entity] || match;\n }\n if (/^#x[a-f0-9]+$/i.test(entity)) {\n return String.fromCodePoint(parseInt(entity.slice(2), 16));\n }\n if (/^#\\d+$/.test(entity)) {\n return String.fromCodePoint(parseInt(entity.slice(1), 10));\n }\n return match;\n}\n\nclass HtmlParser extends Parser {\n constructor() {\n super(getHtmlTagDefinition);\n }\n parse(source, url, options) {\n return super.parse(source, url, options);\n }\n}\n\nconst PRESERVE_WS_ATTR_NAME = 'ngPreserveWhitespaces';\nconst SKIP_WS_TRIM_TAGS = new Set(['pre', 'template', 'textarea', 'script', 'style']);\n// Equivalent to \\s with \\u00a0 (non-breaking space) excluded.\n// Based on https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp\nconst WS_CHARS = ' \\f\\n\\r\\t\\v\\u1680\\u180e\\u2000-\\u200a\\u2028\\u2029\\u202f\\u205f\\u3000\\ufeff';\nconst NO_WS_REGEXP = new RegExp(`[^${WS_CHARS}]`);\nconst WS_REPLACE_REGEXP = new RegExp(`[${WS_CHARS}]{2,}`, 'g');\nfunction hasPreserveWhitespacesAttr(attrs) {\n return attrs.some((attr) => attr.name === PRESERVE_WS_ATTR_NAME);\n}\n/**\n * Angular Dart introduced &ngsp; as a placeholder for non-removable space, see:\n * https://github.com/dart-lang/angular/blob/0bb611387d29d65b5af7f9d2515ab571fd3fbee4/_tests/test/compiler/preserve_whitespace_test.dart#L25-L32\n * In Angular Dart &ngsp; is converted to the 0xE500 PUA (Private Use Areas) unicode character\n * and later on replaced by a space. We are re-implementing the same idea here.\n */\nfunction replaceNgsp(value) {\n // lexer is replacing the &ngsp; pseudo-entity with NGSP_UNICODE\n return value.replace(new RegExp(NGSP_UNICODE, 'g'), ' ');\n}\n/**\n * This visitor can walk HTML parse tree and remove / trim text nodes using the following rules:\n * - consider spaces, tabs and new lines as whitespace characters;\n * - drop text nodes consisting of whitespace characters only;\n * - for all other text nodes replace consecutive whitespace characters with one space;\n * - convert &ngsp; pseudo-entity to a single space;\n *\n * Removal and trimming of whitespaces have positive performance impact (less code to generate\n * while compiling templates, faster view creation). At the same time it can be \"destructive\"\n * in some cases (whitespaces can influence layout). Because of the potential of breaking layout\n * this visitor is not activated by default in Angular 5 and people need to explicitly opt-in for\n * whitespace removal. The default option for whitespace removal will be revisited in Angular 6\n * and might be changed to \"on\" by default.\n */\nclass WhitespaceVisitor {\n visitElement(element, context) {\n if (SKIP_WS_TRIM_TAGS.has(element.name) || hasPreserveWhitespacesAttr(element.attrs)) {\n // don't descent into elements where we need to preserve whitespaces\n // but still visit all attributes to eliminate one used as a market to preserve WS\n return new Element(element.name, visitAll(this, element.attrs), element.children, element.sourceSpan, element.startSourceSpan, element.endSourceSpan, element.i18n);\n }\n return new Element(element.name, element.attrs, visitAllWithSiblings(this, element.children), element.sourceSpan, element.startSourceSpan, element.endSourceSpan, element.i18n);\n }\n visitAttribute(attribute, context) {\n return attribute.name !== PRESERVE_WS_ATTR_NAME ? attribute : null;\n }\n visitText(text, context) {\n const isNotBlank = text.value.match(NO_WS_REGEXP);\n const hasExpansionSibling = context &&\n (context.prev instanceof Expansion || context.next instanceof Expansion);\n if (isNotBlank || hasExpansionSibling) {\n // Process the whitespace in the tokens of this Text node\n const tokens = text.tokens.map(token => token.type === 5 /* TokenType.TEXT */ ? createWhitespaceProcessedTextToken(token) : token);\n // Process the whitespace of the value of this Text node\n const value = processWhitespace(text.value);\n return new Text(value, text.sourceSpan, tokens, text.i18n);\n }\n return null;\n }\n visitComment(comment, context) {\n return comment;\n }\n visitExpansion(expansion, context) {\n return expansion;\n }\n visitExpansionCase(expansionCase, context) {\n return expansionCase;\n }\n}\nfunction createWhitespaceProcessedTextToken({ type, parts, sourceSpan }) {\n return { type, parts: [processWhitespace(parts[0])], sourceSpan };\n}\nfunction processWhitespace(text) {\n return replaceNgsp(text).replace(WS_REPLACE_REGEXP, ' ');\n}\nfunction removeWhitespaces(htmlAstWithErrors) {\n return new ParseTreeResult(visitAll(new WhitespaceVisitor(), htmlAstWithErrors.rootNodes), htmlAstWithErrors.errors);\n}\nfunction visitAllWithSiblings(visitor, nodes) {\n const result = [];\n nodes.forEach((ast, i) => {\n const context = { prev: nodes[i - 1], next: nodes[i + 1] };\n const astResult = ast.visit(visitor, context);\n if (astResult) {\n result.push(astResult);\n }\n });\n return result;\n}\n\nfunction mapEntry(key, value) {\n return { key, value, quoted: false };\n}\nfunction mapLiteral(obj, quoted = false) {\n return literalMap(Object.keys(obj).map(key => ({\n key,\n quoted,\n value: obj[key],\n })));\n}\n\n/**\n * Set of tagName|propertyName corresponding to Trusted Types sinks. Properties applying to all\n * tags use '*'.\n *\n * Extracted from, and should be kept in sync with\n * https://w3c.github.io/webappsec-trusted-types/dist/spec/#integrations\n */\nconst TRUSTED_TYPES_SINKS = new Set([\n // NOTE: All strings in this set *must* be lowercase!\n // TrustedHTML\n 'iframe|srcdoc',\n '*|innerhtml',\n '*|outerhtml',\n // NB: no TrustedScript here, as the corresponding tags are stripped by the compiler.\n // TrustedScriptURL\n 'embed|src',\n 'object|codebase',\n 'object|data',\n]);\n/**\n * isTrustedTypesSink returns true if the given property on the given DOM tag is a Trusted Types\n * sink. In that case, use `ElementSchemaRegistry.securityContext` to determine which particular\n * Trusted Type is required for values passed to the sink:\n * - SecurityContext.HTML corresponds to TrustedHTML\n * - SecurityContext.RESOURCE_URL corresponds to TrustedScriptURL\n */\nfunction isTrustedTypesSink(tagName, propName) {\n // Make sure comparisons are case insensitive, so that case differences between attribute and\n // property names do not have a security impact.\n tagName = tagName.toLowerCase();\n propName = propName.toLowerCase();\n return TRUSTED_TYPES_SINKS.has(tagName + '|' + propName) ||\n TRUSTED_TYPES_SINKS.has('*|' + propName);\n}\n\nconst PROPERTY_PARTS_SEPARATOR = '.';\nconst ATTRIBUTE_PREFIX = 'attr';\nconst CLASS_PREFIX = 'class';\nconst STYLE_PREFIX = 'style';\nconst TEMPLATE_ATTR_PREFIX$1 = '*';\nconst ANIMATE_PROP_PREFIX = 'animate-';\n/**\n * Parses bindings in templates and in the directive host area.\n */\nclass BindingParser {\n constructor(_exprParser, _interpolationConfig, _schemaRegistry, errors) {\n this._exprParser = _exprParser;\n this._interpolationConfig = _interpolationConfig;\n this._schemaRegistry = _schemaRegistry;\n this.errors = errors;\n }\n get interpolationConfig() {\n return this._interpolationConfig;\n }\n createBoundHostProperties(properties, sourceSpan) {\n const boundProps = [];\n for (const propName of Object.keys(properties)) {\n const expression = properties[propName];\n if (typeof expression === 'string') {\n this.parsePropertyBinding(propName, expression, true, sourceSpan, sourceSpan.start.offset, undefined, [], \n // Use the `sourceSpan` for `keySpan`. This isn't really accurate, but neither is the\n // sourceSpan, as it represents the sourceSpan of the host itself rather than the\n // source of the host binding (which doesn't exist in the template). Regardless,\n // neither of these values are used in Ivy but are only here to satisfy the function\n // signature. This should likely be refactored in the future so that `sourceSpan`\n // isn't being used inaccurately.\n boundProps, sourceSpan);\n }\n else {\n this._reportError(`Value of the host property binding \"${propName}\" needs to be a string representing an expression but got \"${expression}\" (${typeof expression})`, sourceSpan);\n }\n }\n return boundProps;\n }\n createDirectiveHostEventAsts(hostListeners, sourceSpan) {\n const targetEvents = [];\n for (const propName of Object.keys(hostListeners)) {\n const expression = hostListeners[propName];\n if (typeof expression === 'string') {\n // Use the `sourceSpan` for `keySpan` and `handlerSpan`. This isn't really accurate, but\n // neither is the `sourceSpan`, as it represents the `sourceSpan` of the host itself\n // rather than the source of the host binding (which doesn't exist in the template).\n // Regardless, neither of these values are used in Ivy but are only here to satisfy the\n // function signature. This should likely be refactored in the future so that `sourceSpan`\n // isn't being used inaccurately.\n this.parseEvent(propName, expression, /* isAssignmentEvent */ false, sourceSpan, sourceSpan, [], targetEvents, sourceSpan);\n }\n else {\n this._reportError(`Value of the host listener \"${propName}\" needs to be a string representing an expression but got \"${expression}\" (${typeof expression})`, sourceSpan);\n }\n }\n return targetEvents;\n }\n parseInterpolation(value, sourceSpan, interpolatedTokens) {\n const sourceInfo = sourceSpan.start.toString();\n const absoluteOffset = sourceSpan.fullStart.offset;\n try {\n const ast = this._exprParser.parseInterpolation(value, sourceInfo, absoluteOffset, interpolatedTokens, this._interpolationConfig);\n if (ast)\n this._reportExpressionParserErrors(ast.errors, sourceSpan);\n return ast;\n }\n catch (e) {\n this._reportError(`${e}`, sourceSpan);\n return this._exprParser.wrapLiteralPrimitive('ERROR', sourceInfo, absoluteOffset);\n }\n }\n /**\n * Similar to `parseInterpolation`, but treats the provided string as a single expression\n * element that would normally appear within the interpolation prefix and suffix (`{{` and `}}`).\n * This is used for parsing the switch expression in ICUs.\n */\n parseInterpolationExpression(expression, sourceSpan) {\n const sourceInfo = sourceSpan.start.toString();\n const absoluteOffset = sourceSpan.start.offset;\n try {\n const ast = this._exprParser.parseInterpolationExpression(expression, sourceInfo, absoluteOffset);\n if (ast)\n this._reportExpressionParserErrors(ast.errors, sourceSpan);\n return ast;\n }\n catch (e) {\n this._reportError(`${e}`, sourceSpan);\n return this._exprParser.wrapLiteralPrimitive('ERROR', sourceInfo, absoluteOffset);\n }\n }\n /**\n * Parses the bindings in a microsyntax expression, and converts them to\n * `ParsedProperty` or `ParsedVariable`.\n *\n * @param tplKey template binding name\n * @param tplValue template binding value\n * @param sourceSpan span of template binding relative to entire the template\n * @param absoluteValueOffset start of the tplValue relative to the entire template\n * @param targetMatchableAttrs potential attributes to match in the template\n * @param targetProps target property bindings in the template\n * @param targetVars target variables in the template\n */\n parseInlineTemplateBinding(tplKey, tplValue, sourceSpan, absoluteValueOffset, targetMatchableAttrs, targetProps, targetVars, isIvyAst) {\n const absoluteKeyOffset = sourceSpan.start.offset + TEMPLATE_ATTR_PREFIX$1.length;\n const bindings = this._parseTemplateBindings(tplKey, tplValue, sourceSpan, absoluteKeyOffset, absoluteValueOffset);\n for (const binding of bindings) {\n // sourceSpan is for the entire HTML attribute. bindingSpan is for a particular\n // binding within the microsyntax expression so it's more narrow than sourceSpan.\n const bindingSpan = moveParseSourceSpan(sourceSpan, binding.sourceSpan);\n const key = binding.key.source;\n const keySpan = moveParseSourceSpan(sourceSpan, binding.key.span);\n if (binding instanceof VariableBinding) {\n const value = binding.value ? binding.value.source : '$implicit';\n const valueSpan = binding.value ? moveParseSourceSpan(sourceSpan, binding.value.span) : undefined;\n targetVars.push(new ParsedVariable(key, value, bindingSpan, keySpan, valueSpan));\n }\n else if (binding.value) {\n const srcSpan = isIvyAst ? bindingSpan : sourceSpan;\n const valueSpan = moveParseSourceSpan(sourceSpan, binding.value.ast.sourceSpan);\n this._parsePropertyAst(key, binding.value, srcSpan, keySpan, valueSpan, targetMatchableAttrs, targetProps);\n }\n else {\n targetMatchableAttrs.push([key, '' /* value */]);\n // Since this is a literal attribute with no RHS, source span should be\n // just the key span.\n this.parseLiteralAttr(key, null /* value */, keySpan, absoluteValueOffset, undefined /* valueSpan */, targetMatchableAttrs, targetProps, keySpan);\n }\n }\n }\n /**\n * Parses the bindings in a microsyntax expression, e.g.\n * ```\n * \n * ```\n *\n * @param tplKey template binding name\n * @param tplValue template binding value\n * @param sourceSpan span of template binding relative to entire the template\n * @param absoluteKeyOffset start of the `tplKey`\n * @param absoluteValueOffset start of the `tplValue`\n */\n _parseTemplateBindings(tplKey, tplValue, sourceSpan, absoluteKeyOffset, absoluteValueOffset) {\n const sourceInfo = sourceSpan.start.toString();\n try {\n const bindingsResult = this._exprParser.parseTemplateBindings(tplKey, tplValue, sourceInfo, absoluteKeyOffset, absoluteValueOffset);\n this._reportExpressionParserErrors(bindingsResult.errors, sourceSpan);\n bindingsResult.warnings.forEach((warning) => {\n this._reportError(warning, sourceSpan, ParseErrorLevel.WARNING);\n });\n return bindingsResult.templateBindings;\n }\n catch (e) {\n this._reportError(`${e}`, sourceSpan);\n return [];\n }\n }\n parseLiteralAttr(name, value, sourceSpan, absoluteOffset, valueSpan, targetMatchableAttrs, targetProps, keySpan) {\n if (isAnimationLabel(name)) {\n name = name.substring(1);\n if (keySpan !== undefined) {\n keySpan = moveParseSourceSpan(keySpan, new AbsoluteSourceSpan(keySpan.start.offset + 1, keySpan.end.offset));\n }\n if (value) {\n this._reportError(`Assigning animation triggers via @prop=\"exp\" attributes with an expression is invalid.` +\n ` Use property bindings (e.g. [@prop]=\"exp\") or use an attribute without a value (e.g. @prop) instead.`, sourceSpan, ParseErrorLevel.ERROR);\n }\n this._parseAnimation(name, value, sourceSpan, absoluteOffset, keySpan, valueSpan, targetMatchableAttrs, targetProps);\n }\n else {\n targetProps.push(new ParsedProperty(name, this._exprParser.wrapLiteralPrimitive(value, '', absoluteOffset), ParsedPropertyType.LITERAL_ATTR, sourceSpan, keySpan, valueSpan));\n }\n }\n parsePropertyBinding(name, expression, isHost, sourceSpan, absoluteOffset, valueSpan, targetMatchableAttrs, targetProps, keySpan) {\n if (name.length === 0) {\n this._reportError(`Property name is missing in binding`, sourceSpan);\n }\n let isAnimationProp = false;\n if (name.startsWith(ANIMATE_PROP_PREFIX)) {\n isAnimationProp = true;\n name = name.substring(ANIMATE_PROP_PREFIX.length);\n if (keySpan !== undefined) {\n keySpan = moveParseSourceSpan(keySpan, new AbsoluteSourceSpan(keySpan.start.offset + ANIMATE_PROP_PREFIX.length, keySpan.end.offset));\n }\n }\n else if (isAnimationLabel(name)) {\n isAnimationProp = true;\n name = name.substring(1);\n if (keySpan !== undefined) {\n keySpan = moveParseSourceSpan(keySpan, new AbsoluteSourceSpan(keySpan.start.offset + 1, keySpan.end.offset));\n }\n }\n if (isAnimationProp) {\n this._parseAnimation(name, expression, sourceSpan, absoluteOffset, keySpan, valueSpan, targetMatchableAttrs, targetProps);\n }\n else {\n this._parsePropertyAst(name, this._parseBinding(expression, isHost, valueSpan || sourceSpan, absoluteOffset), sourceSpan, keySpan, valueSpan, targetMatchableAttrs, targetProps);\n }\n }\n parsePropertyInterpolation(name, value, sourceSpan, valueSpan, targetMatchableAttrs, targetProps, keySpan, interpolatedTokens) {\n const expr = this.parseInterpolation(value, valueSpan || sourceSpan, interpolatedTokens);\n if (expr) {\n this._parsePropertyAst(name, expr, sourceSpan, keySpan, valueSpan, targetMatchableAttrs, targetProps);\n return true;\n }\n return false;\n }\n _parsePropertyAst(name, ast, sourceSpan, keySpan, valueSpan, targetMatchableAttrs, targetProps) {\n targetMatchableAttrs.push([name, ast.source]);\n targetProps.push(new ParsedProperty(name, ast, ParsedPropertyType.DEFAULT, sourceSpan, keySpan, valueSpan));\n }\n _parseAnimation(name, expression, sourceSpan, absoluteOffset, keySpan, valueSpan, targetMatchableAttrs, targetProps) {\n if (name.length === 0) {\n this._reportError('Animation trigger is missing', sourceSpan);\n }\n // This will occur when a @trigger is not paired with an expression.\n // For animations it is valid to not have an expression since */void\n // states will be applied by angular when the element is attached/detached\n const ast = this._parseBinding(expression || 'undefined', false, valueSpan || sourceSpan, absoluteOffset);\n targetMatchableAttrs.push([name, ast.source]);\n targetProps.push(new ParsedProperty(name, ast, ParsedPropertyType.ANIMATION, sourceSpan, keySpan, valueSpan));\n }\n _parseBinding(value, isHostBinding, sourceSpan, absoluteOffset) {\n const sourceInfo = (sourceSpan && sourceSpan.start || '(unknown)').toString();\n try {\n const ast = isHostBinding ?\n this._exprParser.parseSimpleBinding(value, sourceInfo, absoluteOffset, this._interpolationConfig) :\n this._exprParser.parseBinding(value, sourceInfo, absoluteOffset, this._interpolationConfig);\n if (ast)\n this._reportExpressionParserErrors(ast.errors, sourceSpan);\n return ast;\n }\n catch (e) {\n this._reportError(`${e}`, sourceSpan);\n return this._exprParser.wrapLiteralPrimitive('ERROR', sourceInfo, absoluteOffset);\n }\n }\n createBoundElementProperty(elementSelector, boundProp, skipValidation = false, mapPropertyName = true) {\n if (boundProp.isAnimation) {\n return new BoundElementProperty(boundProp.name, 4 /* BindingType.Animation */, SecurityContext.NONE, boundProp.expression, null, boundProp.sourceSpan, boundProp.keySpan, boundProp.valueSpan);\n }\n let unit = null;\n let bindingType = undefined;\n let boundPropertyName = null;\n const parts = boundProp.name.split(PROPERTY_PARTS_SEPARATOR);\n let securityContexts = undefined;\n // Check for special cases (prefix style, attr, class)\n if (parts.length > 1) {\n if (parts[0] == ATTRIBUTE_PREFIX) {\n boundPropertyName = parts.slice(1).join(PROPERTY_PARTS_SEPARATOR);\n if (!skipValidation) {\n this._validatePropertyOrAttributeName(boundPropertyName, boundProp.sourceSpan, true);\n }\n securityContexts = calcPossibleSecurityContexts(this._schemaRegistry, elementSelector, boundPropertyName, true);\n const nsSeparatorIdx = boundPropertyName.indexOf(':');\n if (nsSeparatorIdx > -1) {\n const ns = boundPropertyName.substring(0, nsSeparatorIdx);\n const name = boundPropertyName.substring(nsSeparatorIdx + 1);\n boundPropertyName = mergeNsAndName(ns, name);\n }\n bindingType = 1 /* BindingType.Attribute */;\n }\n else if (parts[0] == CLASS_PREFIX) {\n boundPropertyName = parts[1];\n bindingType = 2 /* BindingType.Class */;\n securityContexts = [SecurityContext.NONE];\n }\n else if (parts[0] == STYLE_PREFIX) {\n unit = parts.length > 2 ? parts[2] : null;\n boundPropertyName = parts[1];\n bindingType = 3 /* BindingType.Style */;\n securityContexts = [SecurityContext.STYLE];\n }\n }\n // If not a special case, use the full property name\n if (boundPropertyName === null) {\n const mappedPropName = this._schemaRegistry.getMappedPropName(boundProp.name);\n boundPropertyName = mapPropertyName ? mappedPropName : boundProp.name;\n securityContexts = calcPossibleSecurityContexts(this._schemaRegistry, elementSelector, mappedPropName, false);\n bindingType = 0 /* BindingType.Property */;\n if (!skipValidation) {\n this._validatePropertyOrAttributeName(mappedPropName, boundProp.sourceSpan, false);\n }\n }\n return new BoundElementProperty(boundPropertyName, bindingType, securityContexts[0], boundProp.expression, unit, boundProp.sourceSpan, boundProp.keySpan, boundProp.valueSpan);\n }\n // TODO: keySpan should be required but was made optional to avoid changing VE parser.\n parseEvent(name, expression, isAssignmentEvent, sourceSpan, handlerSpan, targetMatchableAttrs, targetEvents, keySpan) {\n if (name.length === 0) {\n this._reportError(`Event name is missing in binding`, sourceSpan);\n }\n if (isAnimationLabel(name)) {\n name = name.slice(1);\n if (keySpan !== undefined) {\n keySpan = moveParseSourceSpan(keySpan, new AbsoluteSourceSpan(keySpan.start.offset + 1, keySpan.end.offset));\n }\n this._parseAnimationEvent(name, expression, isAssignmentEvent, sourceSpan, handlerSpan, targetEvents, keySpan);\n }\n else {\n this._parseRegularEvent(name, expression, isAssignmentEvent, sourceSpan, handlerSpan, targetMatchableAttrs, targetEvents, keySpan);\n }\n }\n calcPossibleSecurityContexts(selector, propName, isAttribute) {\n const prop = this._schemaRegistry.getMappedPropName(propName);\n return calcPossibleSecurityContexts(this._schemaRegistry, selector, prop, isAttribute);\n }\n _parseAnimationEvent(name, expression, isAssignmentEvent, sourceSpan, handlerSpan, targetEvents, keySpan) {\n const matches = splitAtPeriod(name, [name, '']);\n const eventName = matches[0];\n const phase = matches[1].toLowerCase();\n const ast = this._parseAction(expression, isAssignmentEvent, handlerSpan);\n targetEvents.push(new ParsedEvent(eventName, phase, 1 /* ParsedEventType.Animation */, ast, sourceSpan, handlerSpan, keySpan));\n if (eventName.length === 0) {\n this._reportError(`Animation event name is missing in binding`, sourceSpan);\n }\n if (phase) {\n if (phase !== 'start' && phase !== 'done') {\n this._reportError(`The provided animation output phase value \"${phase}\" for \"@${eventName}\" is not supported (use start or done)`, sourceSpan);\n }\n }\n else {\n this._reportError(`The animation trigger output event (@${eventName}) is missing its phase value name (start or done are currently supported)`, sourceSpan);\n }\n }\n _parseRegularEvent(name, expression, isAssignmentEvent, sourceSpan, handlerSpan, targetMatchableAttrs, targetEvents, keySpan) {\n // long format: 'target: eventName'\n const [target, eventName] = splitAtColon(name, [null, name]);\n const ast = this._parseAction(expression, isAssignmentEvent, handlerSpan);\n targetMatchableAttrs.push([name, ast.source]);\n targetEvents.push(new ParsedEvent(eventName, target, 0 /* ParsedEventType.Regular */, ast, sourceSpan, handlerSpan, keySpan));\n // Don't detect directives for event names for now,\n // so don't add the event name to the matchableAttrs\n }\n _parseAction(value, isAssignmentEvent, sourceSpan) {\n const sourceInfo = (sourceSpan && sourceSpan.start || '(unknown').toString();\n const absoluteOffset = (sourceSpan && sourceSpan.start) ? sourceSpan.start.offset : 0;\n try {\n const ast = this._exprParser.parseAction(value, isAssignmentEvent, sourceInfo, absoluteOffset, this._interpolationConfig);\n if (ast) {\n this._reportExpressionParserErrors(ast.errors, sourceSpan);\n }\n if (!ast || ast.ast instanceof EmptyExpr) {\n this._reportError(`Empty expressions are not allowed`, sourceSpan);\n return this._exprParser.wrapLiteralPrimitive('ERROR', sourceInfo, absoluteOffset);\n }\n return ast;\n }\n catch (e) {\n this._reportError(`${e}`, sourceSpan);\n return this._exprParser.wrapLiteralPrimitive('ERROR', sourceInfo, absoluteOffset);\n }\n }\n _reportError(message, sourceSpan, level = ParseErrorLevel.ERROR) {\n this.errors.push(new ParseError(sourceSpan, message, level));\n }\n _reportExpressionParserErrors(errors, sourceSpan) {\n for (const error of errors) {\n this._reportError(error.message, sourceSpan);\n }\n }\n /**\n * @param propName the name of the property / attribute\n * @param sourceSpan\n * @param isAttr true when binding to an attribute\n */\n _validatePropertyOrAttributeName(propName, sourceSpan, isAttr) {\n const report = isAttr ? this._schemaRegistry.validateAttribute(propName) :\n this._schemaRegistry.validateProperty(propName);\n if (report.error) {\n this._reportError(report.msg, sourceSpan, ParseErrorLevel.ERROR);\n }\n }\n}\nclass PipeCollector extends RecursiveAstVisitor {\n constructor() {\n super(...arguments);\n this.pipes = new Map();\n }\n visitPipe(ast, context) {\n this.pipes.set(ast.name, ast);\n ast.exp.visit(this);\n this.visitAll(ast.args, context);\n return null;\n }\n}\nfunction isAnimationLabel(name) {\n return name[0] == '@';\n}\nfunction calcPossibleSecurityContexts(registry, selector, propName, isAttribute) {\n const ctxs = [];\n CssSelector.parse(selector).forEach((selector) => {\n const elementNames = selector.element ? [selector.element] : registry.allKnownElementNames();\n const notElementNames = new Set(selector.notSelectors.filter(selector => selector.isElementSelector())\n .map((selector) => selector.element));\n const possibleElementNames = elementNames.filter(elementName => !notElementNames.has(elementName));\n ctxs.push(...possibleElementNames.map(elementName => registry.securityContext(elementName, propName, isAttribute)));\n });\n return ctxs.length === 0 ? [SecurityContext.NONE] : Array.from(new Set(ctxs)).sort();\n}\n/**\n * Compute a new ParseSourceSpan based off an original `sourceSpan` by using\n * absolute offsets from the specified `absoluteSpan`.\n *\n * @param sourceSpan original source span\n * @param absoluteSpan absolute source span to move to\n */\nfunction moveParseSourceSpan(sourceSpan, absoluteSpan) {\n // The difference of two absolute offsets provide the relative offset\n const startDiff = absoluteSpan.start - sourceSpan.start.offset;\n const endDiff = absoluteSpan.end - sourceSpan.end.offset;\n return new ParseSourceSpan(sourceSpan.start.moveBy(startDiff), sourceSpan.end.moveBy(endDiff), sourceSpan.fullStart.moveBy(startDiff), sourceSpan.details);\n}\n\n// Some of the code comes from WebComponents.JS\n// https://github.com/webcomponents/webcomponentsjs/blob/master/src/HTMLImports/path.js\nfunction isStyleUrlResolvable(url) {\n if (url == null || url.length === 0 || url[0] == '/')\n return false;\n const schemeMatch = url.match(URL_WITH_SCHEMA_REGEXP);\n return schemeMatch === null || schemeMatch[1] == 'package' || schemeMatch[1] == 'asset';\n}\nconst URL_WITH_SCHEMA_REGEXP = /^([^:/?#]+):/;\n\nconst NG_CONTENT_SELECT_ATTR$1 = 'select';\nconst LINK_ELEMENT = 'link';\nconst LINK_STYLE_REL_ATTR = 'rel';\nconst LINK_STYLE_HREF_ATTR = 'href';\nconst LINK_STYLE_REL_VALUE = 'stylesheet';\nconst STYLE_ELEMENT = 'style';\nconst SCRIPT_ELEMENT = 'script';\nconst NG_NON_BINDABLE_ATTR = 'ngNonBindable';\nconst NG_PROJECT_AS = 'ngProjectAs';\nfunction preparseElement(ast) {\n let selectAttr = null;\n let hrefAttr = null;\n let relAttr = null;\n let nonBindable = false;\n let projectAs = '';\n ast.attrs.forEach(attr => {\n const lcAttrName = attr.name.toLowerCase();\n if (lcAttrName == NG_CONTENT_SELECT_ATTR$1) {\n selectAttr = attr.value;\n }\n else if (lcAttrName == LINK_STYLE_HREF_ATTR) {\n hrefAttr = attr.value;\n }\n else if (lcAttrName == LINK_STYLE_REL_ATTR) {\n relAttr = attr.value;\n }\n else if (attr.name == NG_NON_BINDABLE_ATTR) {\n nonBindable = true;\n }\n else if (attr.name == NG_PROJECT_AS) {\n if (attr.value.length > 0) {\n projectAs = attr.value;\n }\n }\n });\n selectAttr = normalizeNgContentSelect(selectAttr);\n const nodeName = ast.name.toLowerCase();\n let type = PreparsedElementType.OTHER;\n if (isNgContent(nodeName)) {\n type = PreparsedElementType.NG_CONTENT;\n }\n else if (nodeName == STYLE_ELEMENT) {\n type = PreparsedElementType.STYLE;\n }\n else if (nodeName == SCRIPT_ELEMENT) {\n type = PreparsedElementType.SCRIPT;\n }\n else if (nodeName == LINK_ELEMENT && relAttr == LINK_STYLE_REL_VALUE) {\n type = PreparsedElementType.STYLESHEET;\n }\n return new PreparsedElement(type, selectAttr, hrefAttr, nonBindable, projectAs);\n}\nvar PreparsedElementType;\n(function (PreparsedElementType) {\n PreparsedElementType[PreparsedElementType[\"NG_CONTENT\"] = 0] = \"NG_CONTENT\";\n PreparsedElementType[PreparsedElementType[\"STYLE\"] = 1] = \"STYLE\";\n PreparsedElementType[PreparsedElementType[\"STYLESHEET\"] = 2] = \"STYLESHEET\";\n PreparsedElementType[PreparsedElementType[\"SCRIPT\"] = 3] = \"SCRIPT\";\n PreparsedElementType[PreparsedElementType[\"OTHER\"] = 4] = \"OTHER\";\n})(PreparsedElementType || (PreparsedElementType = {}));\nclass PreparsedElement {\n constructor(type, selectAttr, hrefAttr, nonBindable, projectAs) {\n this.type = type;\n this.selectAttr = selectAttr;\n this.hrefAttr = hrefAttr;\n this.nonBindable = nonBindable;\n this.projectAs = projectAs;\n }\n}\nfunction normalizeNgContentSelect(selectAttr) {\n if (selectAttr === null || selectAttr.length === 0) {\n return '*';\n }\n return selectAttr;\n}\n\nconst BIND_NAME_REGEXP = /^(?:(bind-)|(let-)|(ref-|#)|(on-)|(bindon-)|(@))(.*)$/;\n// Group 1 = \"bind-\"\nconst KW_BIND_IDX = 1;\n// Group 2 = \"let-\"\nconst KW_LET_IDX = 2;\n// Group 3 = \"ref-/#\"\nconst KW_REF_IDX = 3;\n// Group 4 = \"on-\"\nconst KW_ON_IDX = 4;\n// Group 5 = \"bindon-\"\nconst KW_BINDON_IDX = 5;\n// Group 6 = \"@\"\nconst KW_AT_IDX = 6;\n// Group 7 = the identifier after \"bind-\", \"let-\", \"ref-/#\", \"on-\", \"bindon-\" or \"@\"\nconst IDENT_KW_IDX = 7;\nconst BINDING_DELIMS = {\n BANANA_BOX: { start: '[(', end: ')]' },\n PROPERTY: { start: '[', end: ']' },\n EVENT: { start: '(', end: ')' },\n};\nconst TEMPLATE_ATTR_PREFIX = '*';\nfunction htmlAstToRender3Ast(htmlNodes, bindingParser, options) {\n const transformer = new HtmlAstToIvyAst(bindingParser, options);\n const ivyNodes = visitAll(transformer, htmlNodes);\n // Errors might originate in either the binding parser or the html to ivy transformer\n const allErrors = bindingParser.errors.concat(transformer.errors);\n const result = {\n nodes: ivyNodes,\n errors: allErrors,\n styleUrls: transformer.styleUrls,\n styles: transformer.styles,\n ngContentSelectors: transformer.ngContentSelectors\n };\n if (options.collectCommentNodes) {\n result.commentNodes = transformer.commentNodes;\n }\n return result;\n}\nclass HtmlAstToIvyAst {\n constructor(bindingParser, options) {\n this.bindingParser = bindingParser;\n this.options = options;\n this.errors = [];\n this.styles = [];\n this.styleUrls = [];\n this.ngContentSelectors = [];\n // This array will be populated if `Render3ParseOptions['collectCommentNodes']` is true\n this.commentNodes = [];\n this.inI18nBlock = false;\n }\n // HTML visitor\n visitElement(element) {\n const isI18nRootElement = isI18nRootNode(element.i18n);\n if (isI18nRootElement) {\n if (this.inI18nBlock) {\n this.reportError('Cannot mark an element as translatable inside of a translatable section. Please remove the nested i18n marker.', element.sourceSpan);\n }\n this.inI18nBlock = true;\n }\n const preparsedElement = preparseElement(element);\n if (preparsedElement.type === PreparsedElementType.SCRIPT) {\n return null;\n }\n else if (preparsedElement.type === PreparsedElementType.STYLE) {\n const contents = textContents(element);\n if (contents !== null) {\n this.styles.push(contents);\n }\n return null;\n }\n else if (preparsedElement.type === PreparsedElementType.STYLESHEET &&\n isStyleUrlResolvable(preparsedElement.hrefAttr)) {\n this.styleUrls.push(preparsedElement.hrefAttr);\n return null;\n }\n // Whether the element is a ``\n const isTemplateElement = isNgTemplate(element.name);\n const parsedProperties = [];\n const boundEvents = [];\n const variables = [];\n const references = [];\n const attributes = [];\n const i18nAttrsMeta = {};\n const templateParsedProperties = [];\n const templateVariables = [];\n // Whether the element has any *-attribute\n let elementHasInlineTemplate = false;\n for (const attribute of element.attrs) {\n let hasBinding = false;\n const normalizedName = normalizeAttributeName(attribute.name);\n // `*attr` defines template bindings\n let isTemplateBinding = false;\n if (attribute.i18n) {\n i18nAttrsMeta[attribute.name] = attribute.i18n;\n }\n if (normalizedName.startsWith(TEMPLATE_ATTR_PREFIX)) {\n // *-attributes\n if (elementHasInlineTemplate) {\n this.reportError(`Can't have multiple template bindings on one element. Use only one attribute prefixed with *`, attribute.sourceSpan);\n }\n isTemplateBinding = true;\n elementHasInlineTemplate = true;\n const templateValue = attribute.value;\n const templateKey = normalizedName.substring(TEMPLATE_ATTR_PREFIX.length);\n const parsedVariables = [];\n const absoluteValueOffset = attribute.valueSpan ?\n attribute.valueSpan.start.offset :\n // If there is no value span the attribute does not have a value, like `attr` in\n //``. In this case, point to one character beyond the last character of\n // the attribute name.\n attribute.sourceSpan.start.offset + attribute.name.length;\n this.bindingParser.parseInlineTemplateBinding(templateKey, templateValue, attribute.sourceSpan, absoluteValueOffset, [], templateParsedProperties, parsedVariables, true /* isIvyAst */);\n templateVariables.push(...parsedVariables.map(v => new Variable(v.name, v.value, v.sourceSpan, v.keySpan, v.valueSpan)));\n }\n else {\n // Check for variables, events, property bindings, interpolation\n hasBinding = this.parseAttribute(isTemplateElement, attribute, [], parsedProperties, boundEvents, variables, references);\n }\n if (!hasBinding && !isTemplateBinding) {\n // don't include the bindings as attributes as well in the AST\n attributes.push(this.visitAttribute(attribute));\n }\n }\n const children = visitAll(preparsedElement.nonBindable ? NON_BINDABLE_VISITOR : this, element.children);\n let parsedElement;\n if (preparsedElement.type === PreparsedElementType.NG_CONTENT) {\n // ``\n if (element.children &&\n !element.children.every((node) => isEmptyTextNode(node) || isCommentNode(node))) {\n this.reportError(` element cannot have content.`, element.sourceSpan);\n }\n const selector = preparsedElement.selectAttr;\n const attrs = element.attrs.map(attr => this.visitAttribute(attr));\n parsedElement = new Content(selector, attrs, element.sourceSpan, element.i18n);\n this.ngContentSelectors.push(selector);\n }\n else if (isTemplateElement) {\n // ``\n const attrs = this.extractAttributes(element.name, parsedProperties, i18nAttrsMeta);\n parsedElement = new Template(element.name, attributes, attrs.bound, boundEvents, [ /* no template attributes */], children, references, variables, element.sourceSpan, element.startSourceSpan, element.endSourceSpan, element.i18n);\n }\n else {\n const attrs = this.extractAttributes(element.name, parsedProperties, i18nAttrsMeta);\n parsedElement = new Element$1(element.name, attributes, attrs.bound, boundEvents, children, references, element.sourceSpan, element.startSourceSpan, element.endSourceSpan, element.i18n);\n }\n if (elementHasInlineTemplate) {\n // If this node is an inline-template (e.g. has *ngFor) then we need to create a template\n // node that contains this node.\n // Moreover, if the node is an element, then we need to hoist its attributes to the template\n // node for matching against content projection selectors.\n const attrs = this.extractAttributes('ng-template', templateParsedProperties, i18nAttrsMeta);\n const templateAttrs = [];\n attrs.literal.forEach(attr => templateAttrs.push(attr));\n attrs.bound.forEach(attr => templateAttrs.push(attr));\n const hoistedAttrs = parsedElement instanceof Element$1 ?\n {\n attributes: parsedElement.attributes,\n inputs: parsedElement.inputs,\n outputs: parsedElement.outputs,\n } :\n { attributes: [], inputs: [], outputs: [] };\n // For s with structural directives on them, avoid passing i18n information to\n // the wrapping template to prevent unnecessary i18n instructions from being generated. The\n // necessary i18n meta information will be extracted from child elements.\n const i18n = isTemplateElement && isI18nRootElement ? undefined : element.i18n;\n const name = parsedElement instanceof Template ? null : parsedElement.name;\n parsedElement = new Template(name, hoistedAttrs.attributes, hoistedAttrs.inputs, hoistedAttrs.outputs, templateAttrs, [parsedElement], [ /* no references */], templateVariables, element.sourceSpan, element.startSourceSpan, element.endSourceSpan, i18n);\n }\n if (isI18nRootElement) {\n this.inI18nBlock = false;\n }\n return parsedElement;\n }\n visitAttribute(attribute) {\n return new TextAttribute(attribute.name, attribute.value, attribute.sourceSpan, attribute.keySpan, attribute.valueSpan, attribute.i18n);\n }\n visitText(text) {\n return this._visitTextWithInterpolation(text.value, text.sourceSpan, text.tokens, text.i18n);\n }\n visitExpansion(expansion) {\n if (!expansion.i18n) {\n // do not generate Icu in case it was created\n // outside of i18n block in a template\n return null;\n }\n if (!isI18nRootNode(expansion.i18n)) {\n throw new Error(`Invalid type \"${expansion.i18n.constructor}\" for \"i18n\" property of ${expansion.sourceSpan.toString()}. Expected a \"Message\"`);\n }\n const message = expansion.i18n;\n const vars = {};\n const placeholders = {};\n // extract VARs from ICUs - we process them separately while\n // assembling resulting message via goog.getMsg function, since\n // we need to pass them to top-level goog.getMsg call\n Object.keys(message.placeholders).forEach(key => {\n const value = message.placeholders[key];\n if (key.startsWith(I18N_ICU_VAR_PREFIX)) {\n // Currently when the `plural` or `select` keywords in an ICU contain trailing spaces (e.g.\n // `{count, select , ...}`), these spaces are also included into the key names in ICU vars\n // (e.g. \"VAR_SELECT \"). These trailing spaces are not desirable, since they will later be\n // converted into `_` symbols while normalizing placeholder names, which might lead to\n // mismatches at runtime (i.e. placeholder will not be replaced with the correct value).\n const formattedKey = key.trim();\n const ast = this.bindingParser.parseInterpolationExpression(value.text, value.sourceSpan);\n vars[formattedKey] = new BoundText(ast, value.sourceSpan);\n }\n else {\n placeholders[key] = this._visitTextWithInterpolation(value.text, value.sourceSpan, null);\n }\n });\n return new Icu$1(vars, placeholders, expansion.sourceSpan, message);\n }\n visitExpansionCase(expansionCase) {\n return null;\n }\n visitComment(comment) {\n if (this.options.collectCommentNodes) {\n this.commentNodes.push(new Comment$1(comment.value || '', comment.sourceSpan));\n }\n return null;\n }\n // convert view engine `ParsedProperty` to a format suitable for IVY\n extractAttributes(elementName, properties, i18nPropsMeta) {\n const bound = [];\n const literal = [];\n properties.forEach(prop => {\n const i18n = i18nPropsMeta[prop.name];\n if (prop.isLiteral) {\n literal.push(new TextAttribute(prop.name, prop.expression.source || '', prop.sourceSpan, prop.keySpan, prop.valueSpan, i18n));\n }\n else {\n // Note that validation is skipped and property mapping is disabled\n // due to the fact that we need to make sure a given prop is not an\n // input of a directive and directive matching happens at runtime.\n const bep = this.bindingParser.createBoundElementProperty(elementName, prop, /* skipValidation */ true, /* mapPropertyName */ false);\n bound.push(BoundAttribute.fromBoundElementProperty(bep, i18n));\n }\n });\n return { bound, literal };\n }\n parseAttribute(isTemplateElement, attribute, matchableAttributes, parsedProperties, boundEvents, variables, references) {\n const name = normalizeAttributeName(attribute.name);\n const value = attribute.value;\n const srcSpan = attribute.sourceSpan;\n const absoluteOffset = attribute.valueSpan ? attribute.valueSpan.start.offset : srcSpan.start.offset;\n function createKeySpan(srcSpan, prefix, identifier) {\n // We need to adjust the start location for the keySpan to account for the removed 'data-'\n // prefix from `normalizeAttributeName`.\n const normalizationAdjustment = attribute.name.length - name.length;\n const keySpanStart = srcSpan.start.moveBy(prefix.length + normalizationAdjustment);\n const keySpanEnd = keySpanStart.moveBy(identifier.length);\n return new ParseSourceSpan(keySpanStart, keySpanEnd, keySpanStart, identifier);\n }\n const bindParts = name.match(BIND_NAME_REGEXP);\n if (bindParts) {\n if (bindParts[KW_BIND_IDX] != null) {\n const identifier = bindParts[IDENT_KW_IDX];\n const keySpan = createKeySpan(srcSpan, bindParts[KW_BIND_IDX], identifier);\n this.bindingParser.parsePropertyBinding(identifier, value, false, srcSpan, absoluteOffset, attribute.valueSpan, matchableAttributes, parsedProperties, keySpan);\n }\n else if (bindParts[KW_LET_IDX]) {\n if (isTemplateElement) {\n const identifier = bindParts[IDENT_KW_IDX];\n const keySpan = createKeySpan(srcSpan, bindParts[KW_LET_IDX], identifier);\n this.parseVariable(identifier, value, srcSpan, keySpan, attribute.valueSpan, variables);\n }\n else {\n this.reportError(`\"let-\" is only supported on ng-template elements.`, srcSpan);\n }\n }\n else if (bindParts[KW_REF_IDX]) {\n const identifier = bindParts[IDENT_KW_IDX];\n const keySpan = createKeySpan(srcSpan, bindParts[KW_REF_IDX], identifier);\n this.parseReference(identifier, value, srcSpan, keySpan, attribute.valueSpan, references);\n }\n else if (bindParts[KW_ON_IDX]) {\n const events = [];\n const identifier = bindParts[IDENT_KW_IDX];\n const keySpan = createKeySpan(srcSpan, bindParts[KW_ON_IDX], identifier);\n this.bindingParser.parseEvent(identifier, value, /* isAssignmentEvent */ false, srcSpan, attribute.valueSpan || srcSpan, matchableAttributes, events, keySpan);\n addEvents(events, boundEvents);\n }\n else if (bindParts[KW_BINDON_IDX]) {\n const identifier = bindParts[IDENT_KW_IDX];\n const keySpan = createKeySpan(srcSpan, bindParts[KW_BINDON_IDX], identifier);\n this.bindingParser.parsePropertyBinding(identifier, value, false, srcSpan, absoluteOffset, attribute.valueSpan, matchableAttributes, parsedProperties, keySpan);\n this.parseAssignmentEvent(identifier, value, srcSpan, attribute.valueSpan, matchableAttributes, boundEvents, keySpan);\n }\n else if (bindParts[KW_AT_IDX]) {\n const keySpan = createKeySpan(srcSpan, '', name);\n this.bindingParser.parseLiteralAttr(name, value, srcSpan, absoluteOffset, attribute.valueSpan, matchableAttributes, parsedProperties, keySpan);\n }\n return true;\n }\n // We didn't see a kw-prefixed property binding, but we have not yet checked\n // for the []/()/[()] syntax.\n let delims = null;\n if (name.startsWith(BINDING_DELIMS.BANANA_BOX.start)) {\n delims = BINDING_DELIMS.BANANA_BOX;\n }\n else if (name.startsWith(BINDING_DELIMS.PROPERTY.start)) {\n delims = BINDING_DELIMS.PROPERTY;\n }\n else if (name.startsWith(BINDING_DELIMS.EVENT.start)) {\n delims = BINDING_DELIMS.EVENT;\n }\n if (delims !== null &&\n // NOTE: older versions of the parser would match a start/end delimited\n // binding iff the property name was terminated by the ending delimiter\n // and the identifier in the binding was non-empty.\n // TODO(ayazhafiz): update this to handle malformed bindings.\n name.endsWith(delims.end) && name.length > delims.start.length + delims.end.length) {\n const identifier = name.substring(delims.start.length, name.length - delims.end.length);\n const keySpan = createKeySpan(srcSpan, delims.start, identifier);\n if (delims.start === BINDING_DELIMS.BANANA_BOX.start) {\n this.bindingParser.parsePropertyBinding(identifier, value, false, srcSpan, absoluteOffset, attribute.valueSpan, matchableAttributes, parsedProperties, keySpan);\n this.parseAssignmentEvent(identifier, value, srcSpan, attribute.valueSpan, matchableAttributes, boundEvents, keySpan);\n }\n else if (delims.start === BINDING_DELIMS.PROPERTY.start) {\n this.bindingParser.parsePropertyBinding(identifier, value, false, srcSpan, absoluteOffset, attribute.valueSpan, matchableAttributes, parsedProperties, keySpan);\n }\n else {\n const events = [];\n this.bindingParser.parseEvent(identifier, value, /* isAssignmentEvent */ false, srcSpan, attribute.valueSpan || srcSpan, matchableAttributes, events, keySpan);\n addEvents(events, boundEvents);\n }\n return true;\n }\n // No explicit binding found.\n const keySpan = createKeySpan(srcSpan, '' /* prefix */, name);\n const hasBinding = this.bindingParser.parsePropertyInterpolation(name, value, srcSpan, attribute.valueSpan, matchableAttributes, parsedProperties, keySpan, attribute.valueTokens ?? null);\n return hasBinding;\n }\n _visitTextWithInterpolation(value, sourceSpan, interpolatedTokens, i18n) {\n const valueNoNgsp = replaceNgsp(value);\n const expr = this.bindingParser.parseInterpolation(valueNoNgsp, sourceSpan, interpolatedTokens);\n return expr ? new BoundText(expr, sourceSpan, i18n) : new Text$3(valueNoNgsp, sourceSpan);\n }\n parseVariable(identifier, value, sourceSpan, keySpan, valueSpan, variables) {\n if (identifier.indexOf('-') > -1) {\n this.reportError(`\"-\" is not allowed in variable names`, sourceSpan);\n }\n else if (identifier.length === 0) {\n this.reportError(`Variable does not have a name`, sourceSpan);\n }\n variables.push(new Variable(identifier, value, sourceSpan, keySpan, valueSpan));\n }\n parseReference(identifier, value, sourceSpan, keySpan, valueSpan, references) {\n if (identifier.indexOf('-') > -1) {\n this.reportError(`\"-\" is not allowed in reference names`, sourceSpan);\n }\n else if (identifier.length === 0) {\n this.reportError(`Reference does not have a name`, sourceSpan);\n }\n else if (references.some(reference => reference.name === identifier)) {\n this.reportError(`Reference \"#${identifier}\" is defined more than once`, sourceSpan);\n }\n references.push(new Reference(identifier, value, sourceSpan, keySpan, valueSpan));\n }\n parseAssignmentEvent(name, expression, sourceSpan, valueSpan, targetMatchableAttrs, boundEvents, keySpan) {\n const events = [];\n this.bindingParser.parseEvent(`${name}Change`, `${expression} =$event`, /* isAssignmentEvent */ true, sourceSpan, valueSpan || sourceSpan, targetMatchableAttrs, events, keySpan);\n addEvents(events, boundEvents);\n }\n reportError(message, sourceSpan, level = ParseErrorLevel.ERROR) {\n this.errors.push(new ParseError(sourceSpan, message, level));\n }\n}\nclass NonBindableVisitor {\n visitElement(ast) {\n const preparsedElement = preparseElement(ast);\n if (preparsedElement.type === PreparsedElementType.SCRIPT ||\n preparsedElement.type === PreparsedElementType.STYLE ||\n preparsedElement.type === PreparsedElementType.STYLESHEET) {\n // Skipping