';\n * }\n * });\n * ```\n *\n **/\nfunction MarkdownIt(presetName, options) {\n if (!(this instanceof MarkdownIt)) {\n return new MarkdownIt(presetName, options);\n }\n\n if (!options) {\n if (!utils.isString(presetName)) {\n options = presetName || {};\n presetName = 'default';\n }\n }\n\n /**\n * MarkdownIt#inline -> ParserInline\n *\n * Instance of [[ParserInline]]. You may need it to add new rules when\n * writing plugins. For simple rules control use [[MarkdownIt.disable]] and\n * [[MarkdownIt.enable]].\n **/\n this.inline = new ParserInline();\n\n /**\n * MarkdownIt#block -> ParserBlock\n *\n * Instance of [[ParserBlock]]. You may need it to add new rules when\n * writing plugins. For simple rules control use [[MarkdownIt.disable]] and\n * [[MarkdownIt.enable]].\n **/\n this.block = new ParserBlock();\n\n /**\n * MarkdownIt#core -> Core\n *\n * Instance of [[Core]] chain executor. You may need it to add new rules when\n * writing plugins. For simple rules control use [[MarkdownIt.disable]] and\n * [[MarkdownIt.enable]].\n **/\n this.core = new ParserCore();\n\n /**\n * MarkdownIt#renderer -> Renderer\n *\n * Instance of [[Renderer]]. Use it to modify output look. Or to add rendering\n * rules for new token types, generated by plugins.\n *\n * ##### Example\n *\n * ```javascript\n * var md = require('markdown-it')();\n *\n * function myToken(tokens, idx, options, env, self) {\n * //...\n * return result;\n * };\n *\n * md.renderer.rules['my_token'] = myToken\n * ```\n *\n * See [[Renderer]] docs and [source code](https://github.com/markdown-it/markdown-it/blob/master/lib/renderer.js).\n **/\n this.renderer = new Renderer();\n\n /**\n * MarkdownIt#linkify -> LinkifyIt\n *\n * [linkify-it](https://github.com/markdown-it/linkify-it) instance.\n * Used by [linkify](https://github.com/markdown-it/markdown-it/blob/master/lib/rules_core/linkify.js)\n * rule.\n **/\n this.linkify = new LinkifyIt();\n\n /**\n * MarkdownIt#validateLink(url) -> Boolean\n *\n * Link validation function. CommonMark allows too much in links. By default\n * we disable `javascript:`, `vbscript:`, `file:` schemas, and almost all `data:...` schemas\n * except some embedded image types.\n *\n * You can change this behaviour:\n *\n * ```javascript\n * var md = require('markdown-it')();\n * // enable everything\n * md.validateLink = function () { return true; }\n * ```\n **/\n this.validateLink = validateLink;\n\n /**\n * MarkdownIt#normalizeLink(url) -> String\n *\n * Function used to encode link url to a machine-readable format,\n * which includes url-encoding, punycode, etc.\n **/\n this.normalizeLink = normalizeLink;\n\n /**\n * MarkdownIt#normalizeLinkText(url) -> String\n *\n * Function used to decode link url to a human-readable format`\n **/\n this.normalizeLinkText = normalizeLinkText;\n\n\n // Expose utils & helpers for easy acces from plugins\n\n /**\n * MarkdownIt#utils -> utils\n *\n * Assorted utility functions, useful to write plugins. See details\n * [here](https://github.com/markdown-it/markdown-it/blob/master/lib/common/utils.js).\n **/\n this.utils = utils;\n\n /**\n * MarkdownIt#helpers -> helpers\n *\n * Link components parser functions, useful to write plugins. See details\n * [here](https://github.com/markdown-it/markdown-it/blob/master/lib/helpers).\n **/\n this.helpers = helpers;\n\n\n this.options = {};\n this.configure(presetName);\n\n if (options) { this.set(options); }\n}\n\n\n/** chainable\n * MarkdownIt.set(options)\n *\n * Set parser options (in the same format as in constructor). Probably, you\n * will never need it, but you can change options after constructor call.\n *\n * ##### Example\n *\n * ```javascript\n * var md = require('markdown-it')()\n * .set({ html: true, breaks: true })\n * .set({ typographer, true });\n * ```\n *\n * __Note:__ To achieve the best possible performance, don't modify a\n * `markdown-it` instance options on the fly. If you need multiple configurations\n * it's best to create multiple instances and initialize each with separate\n * config.\n **/\nMarkdownIt.prototype.set = function (options) {\n utils.assign(this.options, options);\n return this;\n};\n\n\n/** chainable, internal\n * MarkdownIt.configure(presets)\n *\n * Batch load of all options and compenent settings. This is internal method,\n * and you probably will not need it. But if you with - see available presets\n * and data structure [here](https://github.com/markdown-it/markdown-it/tree/master/lib/presets)\n *\n * We strongly recommend to use presets instead of direct config loads. That\n * will give better compatibility with next versions.\n **/\nMarkdownIt.prototype.configure = function (presets) {\n var self = this, presetName;\n\n if (utils.isString(presets)) {\n presetName = presets;\n presets = config[presetName];\n if (!presets) { throw new Error('Wrong `markdown-it` preset \"' + presetName + '\", check name'); }\n }\n\n if (!presets) { throw new Error('Wrong `markdown-it` preset, can\\'t be empty'); }\n\n if (presets.options) { self.set(presets.options); }\n\n if (presets.components) {\n Object.keys(presets.components).forEach(function (name) {\n if (presets.components[name].rules) {\n self[name].ruler.enableOnly(presets.components[name].rules);\n }\n if (presets.components[name].rules2) {\n self[name].ruler2.enableOnly(presets.components[name].rules2);\n }\n });\n }\n return this;\n};\n\n\n/** chainable\n * MarkdownIt.enable(list, ignoreInvalid)\n * - list (String|Array): rule name or list of rule names to enable\n * - ignoreInvalid (Boolean): set `true` to ignore errors when rule not found.\n *\n * Enable list or rules. It will automatically find appropriate components,\n * containing rules with given names. If rule not found, and `ignoreInvalid`\n * not set - throws exception.\n *\n * ##### Example\n *\n * ```javascript\n * var md = require('markdown-it')()\n * .enable(['sub', 'sup'])\n * .disable('smartquotes');\n * ```\n **/\nMarkdownIt.prototype.enable = function (list, ignoreInvalid) {\n var result = [];\n\n if (!Array.isArray(list)) { list = [ list ]; }\n\n [ 'core', 'block', 'inline' ].forEach(function (chain) {\n result = result.concat(this[chain].ruler.enable(list, true));\n }, this);\n\n result = result.concat(this.inline.ruler2.enable(list, true));\n\n var missed = list.filter(function (name) { return result.indexOf(name) < 0; });\n\n if (missed.length && !ignoreInvalid) {\n throw new Error('MarkdownIt. Failed to enable unknown rule(s): ' + missed);\n }\n\n return this;\n};\n\n\n/** chainable\n * MarkdownIt.disable(list, ignoreInvalid)\n * - list (String|Array): rule name or list of rule names to disable.\n * - ignoreInvalid (Boolean): set `true` to ignore errors when rule not found.\n *\n * The same as [[MarkdownIt.enable]], but turn specified rules off.\n **/\nMarkdownIt.prototype.disable = function (list, ignoreInvalid) {\n var result = [];\n\n if (!Array.isArray(list)) { list = [ list ]; }\n\n [ 'core', 'block', 'inline' ].forEach(function (chain) {\n result = result.concat(this[chain].ruler.disable(list, true));\n }, this);\n\n result = result.concat(this.inline.ruler2.disable(list, true));\n\n var missed = list.filter(function (name) { return result.indexOf(name) < 0; });\n\n if (missed.length && !ignoreInvalid) {\n throw new Error('MarkdownIt. Failed to disable unknown rule(s): ' + missed);\n }\n return this;\n};\n\n\n/** chainable\n * MarkdownIt.use(plugin, params)\n *\n * Load specified plugin with given params into current parser instance.\n * It's just a sugar to call `plugin(md, params)` with curring.\n *\n * ##### Example\n *\n * ```javascript\n * var iterator = require('markdown-it-for-inline');\n * var md = require('markdown-it')()\n * .use(iterator, 'foo_replace', 'text', function (tokens, idx) {\n * tokens[idx].content = tokens[idx].content.replace(/foo/g, 'bar');\n * });\n * ```\n **/\nMarkdownIt.prototype.use = function (plugin /*, params, ... */) {\n var args = [ this ].concat(Array.prototype.slice.call(arguments, 1));\n plugin.apply(plugin, args);\n return this;\n};\n\n\n/** internal\n * MarkdownIt.parse(src, env) -> Array\n * - src (String): source string\n * - env (Object): environment sandbox\n *\n * Parse input string and returns list of block tokens (special token type\n * \"inline\" will contain list of inline tokens). You should not call this\n * method directly, until you write custom renderer (for example, to produce\n * AST).\n *\n * `env` is used to pass data between \"distributed\" rules and return additional\n * metadata like reference info, needed for the renderer. It also can be used to\n * inject data in specific cases. Usually, you will be ok to pass `{}`,\n * and then pass updated object to renderer.\n **/\nMarkdownIt.prototype.parse = function (src, env) {\n var state = new this.core.State(src, this, env);\n\n this.core.process(state);\n\n return state.tokens;\n};\n\n\n/**\n * MarkdownIt.render(src [, env]) -> String\n * - src (String): source string\n * - env (Object): environment sandbox\n *\n * Render markdown string into html. It does all magic for you :).\n *\n * `env` can be used to inject additional metadata (`{}` by default).\n * But you will not need it with high probability. See also comment\n * in [[MarkdownIt.parse]].\n **/\nMarkdownIt.prototype.render = function (src, env) {\n env = env || {};\n\n return this.renderer.render(this.parse(src, env), this.options, env);\n};\n\n\n/** internal\n * MarkdownIt.parseInline(src, env) -> Array\n * - src (String): source string\n * - env (Object): environment sandbox\n *\n * The same as [[MarkdownIt.parse]] but skip all block rules. It returns the\n * block tokens list with the single `inline` element, containing parsed inline\n * tokens in `children` property. Also updates `env` object.\n **/\nMarkdownIt.prototype.parseInline = function (src, env) {\n var state = new this.core.State(src, this, env);\n\n state.inlineMode = true;\n this.core.process(state);\n\n return state.tokens;\n};\n\n\n/**\n * MarkdownIt.renderInline(src [, env]) -> String\n * - src (String): source string\n * - env (Object): environment sandbox\n *\n * Similar to [[MarkdownIt.render]] but for single paragraph content. Result\n * will NOT be wrapped into `
` tags.\n **/\nMarkdownIt.prototype.renderInline = function (src, env) {\n env = env || {};\n\n return this.renderer.render(this.parseInline(src, env), this.options, env);\n};\n\n\nmodule.exports = MarkdownIt;\n","// Token class\n\n'use strict';\n\n\n/**\n * class Token\n **/\n\n/**\n * new Token(type, tag, nesting)\n *\n * Create new token and fill passed properties.\n **/\nfunction Token(type, tag, nesting) {\n /**\n * Token#type -> String\n *\n * Type of the token (string, e.g. \"paragraph_open\")\n **/\n this.type = type;\n\n /**\n * Token#tag -> String\n *\n * html tag name, e.g. \"p\"\n **/\n this.tag = tag;\n\n /**\n * Token#attrs -> Array\n *\n * Html attributes. Format: `[ [ name1, value1 ], [ name2, value2 ] ]`\n **/\n this.attrs = null;\n\n /**\n * Token#map -> Array\n *\n * Source map info. Format: `[ line_begin, line_end ]`\n **/\n this.map = null;\n\n /**\n * Token#nesting -> Number\n *\n * Level change (number in {-1, 0, 1} set), where:\n *\n * - `1` means the tag is opening\n * - `0` means the tag is self-closing\n * - `-1` means the tag is closing\n **/\n this.nesting = nesting;\n\n /**\n * Token#level -> Number\n *\n * nesting level, the same as `state.level`\n **/\n this.level = 0;\n\n /**\n * Token#children -> Array\n *\n * An array of child nodes (inline and img tokens)\n **/\n this.children = null;\n\n /**\n * Token#content -> String\n *\n * In a case of self-closing tag (code, html, fence, etc.),\n * it has contents of this tag.\n **/\n this.content = '';\n\n /**\n * Token#markup -> String\n *\n * '*' or '_' for emphasis, fence string for fence, etc.\n **/\n this.markup = '';\n\n /**\n * Token#info -> String\n *\n * fence infostring\n **/\n this.info = '';\n\n /**\n * Token#meta -> Object\n *\n * A place for plugins to store an arbitrary data\n **/\n this.meta = null;\n\n /**\n * Token#block -> Boolean\n *\n * True for block-level tokens, false for inline tokens.\n * Used in renderer to calculate line breaks\n **/\n this.block = false;\n\n /**\n * Token#hidden -> Boolean\n *\n * If it's true, ignore this element when rendering. Used for tight lists\n * to hide paragraphs.\n **/\n this.hidden = false;\n}\n\n\n/**\n * Token.attrIndex(name) -> Number\n *\n * Search attribute index by name.\n **/\nToken.prototype.attrIndex = function attrIndex(name) {\n var attrs, i, len;\n\n if (!this.attrs) { return -1; }\n\n attrs = this.attrs;\n\n for (i = 0, len = attrs.length; i < len; i++) {\n if (attrs[i][0] === name) { return i; }\n }\n return -1;\n};\n\n\n/**\n * Token.attrPush(attrData)\n *\n * Add `[ name, value ]` attribute to list. Init attrs if necessary\n **/\nToken.prototype.attrPush = function attrPush(attrData) {\n if (this.attrs) {\n this.attrs.push(attrData);\n } else {\n this.attrs = [ attrData ];\n }\n};\n\n\n/**\n * Token.attrSet(name, value)\n *\n * Set `name` attribute to `value`. Override old value if exists.\n **/\nToken.prototype.attrSet = function attrSet(name, value) {\n var idx = this.attrIndex(name),\n attrData = [ name, value ];\n\n if (idx < 0) {\n this.attrPush(attrData);\n } else {\n this.attrs[idx] = attrData;\n }\n};\n\n\n/**\n * Token.attrGet(name)\n *\n * Get the value of attribute `name`, or null if it does not exist.\n **/\nToken.prototype.attrGet = function attrGet(name) {\n var idx = this.attrIndex(name), value = null;\n if (idx >= 0) {\n value = this.attrs[idx][1];\n }\n return value;\n};\n\n\n/**\n * Token.attrJoin(name, value)\n *\n * Join value to existing attribute via space. Or create new attribute if not\n * exists. Useful to operate with token classes.\n **/\nToken.prototype.attrJoin = function attrJoin(name, value) {\n var idx = this.attrIndex(name);\n\n if (idx < 0) {\n this.attrPush([ name, value ]);\n } else {\n this.attrs[idx][1] = this.attrs[idx][1] + ' ' + value;\n }\n};\n\n\nmodule.exports = Token;\n","// Inline parser state\n\n'use strict';\n\n\nvar Token = require('../token');\nvar isWhiteSpace = require('../common/utils').isWhiteSpace;\nvar isPunctChar = require('../common/utils').isPunctChar;\nvar isMdAsciiPunct = require('../common/utils').isMdAsciiPunct;\n\n\nfunction StateInline(src, md, env, outTokens) {\n this.src = src;\n this.env = env;\n this.md = md;\n this.tokens = outTokens;\n\n this.pos = 0;\n this.posMax = this.src.length;\n this.level = 0;\n this.pending = '';\n this.pendingLevel = 0;\n\n this.cache = {}; // Stores { start: end } pairs. Useful for backtrack\n // optimization of pairs parse (emphasis, strikes).\n\n this.delimiters = []; // Emphasis-like delimiters\n}\n\n\n// Flush pending text\n//\nStateInline.prototype.pushPending = function () {\n var token = new Token('text', '', 0);\n token.content = this.pending;\n token.level = this.pendingLevel;\n this.tokens.push(token);\n this.pending = '';\n return token;\n};\n\n\n// Push new token to \"stream\".\n// If pending text exists - flush it as text token\n//\nStateInline.prototype.push = function (type, tag, nesting) {\n if (this.pending) {\n this.pushPending();\n }\n\n var token = new Token(type, tag, nesting);\n\n if (nesting < 0) { this.level--; }\n token.level = this.level;\n if (nesting > 0) { this.level++; }\n\n this.pendingLevel = this.level;\n this.tokens.push(token);\n return token;\n};\n\n\n// Scan a sequence of emphasis-like markers, and determine whether\n// it can start an emphasis sequence or end an emphasis sequence.\n//\n// - start - position to scan from (it should point at a valid marker);\n// - canSplitWord - determine if these markers can be found inside a word\n//\nStateInline.prototype.scanDelims = function (start, canSplitWord) {\n var pos = start, lastChar, nextChar, count, can_open, can_close,\n isLastWhiteSpace, isLastPunctChar,\n isNextWhiteSpace, isNextPunctChar,\n left_flanking = true,\n right_flanking = true,\n max = this.posMax,\n marker = this.src.charCodeAt(start);\n\n // treat beginning of the line as a whitespace\n lastChar = start > 0 ? this.src.charCodeAt(start - 1) : 0x20;\n\n while (pos < max && this.src.charCodeAt(pos) === marker) { pos++; }\n\n count = pos - start;\n\n // treat end of the line as a whitespace\n nextChar = pos < max ? this.src.charCodeAt(pos) : 0x20;\n\n isLastPunctChar = isMdAsciiPunct(lastChar) || isPunctChar(String.fromCharCode(lastChar));\n isNextPunctChar = isMdAsciiPunct(nextChar) || isPunctChar(String.fromCharCode(nextChar));\n\n isLastWhiteSpace = isWhiteSpace(lastChar);\n isNextWhiteSpace = isWhiteSpace(nextChar);\n\n if (isNextWhiteSpace) {\n left_flanking = false;\n } else if (isNextPunctChar) {\n if (!(isLastWhiteSpace || isLastPunctChar)) {\n left_flanking = false;\n }\n }\n\n if (isLastWhiteSpace) {\n right_flanking = false;\n } else if (isLastPunctChar) {\n if (!(isNextWhiteSpace || isNextPunctChar)) {\n right_flanking = false;\n }\n }\n\n if (!canSplitWord) {\n can_open = left_flanking && (!right_flanking || isLastPunctChar);\n can_close = right_flanking && (!left_flanking || isNextPunctChar);\n } else {\n can_open = left_flanking;\n can_close = right_flanking;\n }\n\n return {\n can_open: can_open,\n can_close: can_close,\n length: count\n };\n};\n\n\n// re-export Token class to use in block rules\nStateInline.prototype.Token = Token;\n\n\nmodule.exports = StateInline;\n","// https://github.com/tc39/proposal-promise-finally\n'use strict';\nvar $export = require('./_export');\nvar core = require('./_core');\nvar global = require('./_global');\nvar speciesConstructor = require('./_species-constructor');\nvar promiseResolve = require('./_promise-resolve');\n\n$export($export.P + $export.R, 'Promise', { 'finally': function (onFinally) {\n var C = speciesConstructor(this, core.Promise || global.Promise);\n var isFunction = typeof onFinally == 'function';\n return this.then(\n isFunction ? function (x) {\n return promiseResolve(C, onFinally()).then(function () { return x; });\n } : onFinally,\n isFunction ? function (e) {\n return promiseResolve(C, onFinally()).then(function () { throw e; });\n } : onFinally\n );\n} });\n","// 19.1.2.14 / 15.2.3.14 Object.keys(O)\nvar $keys = require('./_object-keys-internal');\nvar enumBugKeys = require('./_enum-bug-keys');\n\nmodule.exports = Object.keys || function keys(O) {\n return $keys(O, enumBugKeys);\n};\n","/**\n * These objects store the data about the DOM nodes we create, as well as some\n * extra data. They can then be transformed into real DOM nodes with the\n * `toNode` function or HTML markup using `toMarkup`. They are useful for both\n * storing extra properties on the nodes, as well as providing a way to easily\n * work with the DOM.\n *\n * Similar functions for working with MathML nodes exist in mathMLTree.js.\n */\n\nvar utils = require(\"./utils\");\n\n/**\n * Create an HTML className based on a list of classes. In addition to joining\n * with spaces, we also remove null or empty classes.\n */\nvar createClass = function(classes) {\n classes = classes.slice();\n for (var i = classes.length - 1; i >= 0; i--) {\n if (!classes[i]) {\n classes.splice(i, 1);\n }\n }\n\n return classes.join(\" \");\n};\n\n/**\n * This node represents a span node, with a className, a list of children, and\n * an inline style. It also contains information about its height, depth, and\n * maxFontSize.\n */\nfunction span(classes, children, height, depth, maxFontSize, style) {\n this.classes = classes || [];\n this.children = children || [];\n this.height = height || 0;\n this.depth = depth || 0;\n this.maxFontSize = maxFontSize || 0;\n this.style = style || {};\n this.attributes = {};\n}\n\n/**\n * Sets an arbitrary attribute on the span. Warning: use this wisely. Not all\n * browsers support attributes the same, and having too many custom attributes\n * is probably bad.\n */\nspan.prototype.setAttribute = function(attribute, value) {\n this.attributes[attribute] = value;\n};\n\n/**\n * Convert the span into an HTML node\n */\nspan.prototype.toNode = function() {\n var span = document.createElement(\"span\");\n\n // Apply the class\n span.className = createClass(this.classes);\n\n // Apply inline styles\n for (var style in this.style) {\n if (Object.prototype.hasOwnProperty.call(this.style, style)) {\n span.style[style] = this.style[style];\n }\n }\n\n // Apply attributes\n for (var attr in this.attributes) {\n if (Object.prototype.hasOwnProperty.call(this.attributes, attr)) {\n span.setAttribute(attr, this.attributes[attr]);\n }\n }\n\n // Append the children, also as HTML nodes\n for (var i = 0; i < this.children.length; i++) {\n span.appendChild(this.children[i].toNode());\n }\n\n return span;\n};\n\n/**\n * Convert the span into an HTML markup string\n */\nspan.prototype.toMarkup = function() {\n var markup = \"\";\n\n // Add the markup of the children, also as markup\n for (var i = 0; i < this.children.length; i++) {\n markup += this.children[i].toMarkup();\n }\n\n markup += \"\";\n\n return markup;\n};\n\n/**\n * This node represents a document fragment, which contains elements, but when\n * placed into the DOM doesn't have any representation itself. Thus, it only\n * contains children and doesn't have any HTML properties. It also keeps track\n * of a height, depth, and maxFontSize.\n */\nfunction documentFragment(children, height, depth, maxFontSize) {\n this.children = children || [];\n this.height = height || 0;\n this.depth = depth || 0;\n this.maxFontSize = maxFontSize || 0;\n}\n\n/**\n * Convert the fragment into a node\n */\ndocumentFragment.prototype.toNode = function() {\n // Create a fragment\n var frag = document.createDocumentFragment();\n\n // Append the children\n for (var i = 0; i < this.children.length; i++) {\n frag.appendChild(this.children[i].toNode());\n }\n\n return frag;\n};\n\n/**\n * Convert the fragment into HTML markup\n */\ndocumentFragment.prototype.toMarkup = function() {\n var markup = \"\";\n\n // Simply concatenate the markup for the children together\n for (var i = 0; i < this.children.length; i++) {\n markup += this.children[i].toMarkup();\n }\n\n return markup;\n};\n\n/**\n * A symbol node contains information about a single symbol. It either renders\n * to a single text node, or a span with a single text node in it, depending on\n * whether it has CSS classes, styles, or needs italic correction.\n */\nfunction symbolNode(value, height, depth, italic, skew, classes, style) {\n this.value = value || \"\";\n this.height = height || 0;\n this.depth = depth || 0;\n this.italic = italic || 0;\n this.skew = skew || 0;\n this.classes = classes || [];\n this.style = style || {};\n this.maxFontSize = 0;\n}\n\n/**\n * Creates a text node or span from a symbol node. Note that a span is only\n * created if it is needed.\n */\nsymbolNode.prototype.toNode = function() {\n var node = document.createTextNode(this.value);\n var span = null;\n\n if (this.italic > 0) {\n span = document.createElement(\"span\");\n span.style.marginRight = this.italic + \"em\";\n }\n\n if (this.classes.length > 0) {\n span = span || document.createElement(\"span\");\n span.className = createClass(this.classes);\n }\n\n for (var style in this.style) {\n if (this.style.hasOwnProperty(style)) {\n span = span || document.createElement(\"span\");\n span.style[style] = this.style[style];\n }\n }\n\n if (span) {\n span.appendChild(node);\n return span;\n } else {\n return node;\n }\n};\n\n/**\n * Creates markup for a symbol node.\n */\nsymbolNode.prototype.toMarkup = function() {\n // TODO(alpert): More duplication than I'd like from\n // span.prototype.toMarkup and symbolNode.prototype.toNode...\n var needsSpan = false;\n\n var markup = \" 0) {\n styles += \"margin-right:\" + this.italic + \"em;\";\n }\n for (var style in this.style) {\n if (this.style.hasOwnProperty(style)) {\n styles += utils.hyphenate(style) + \":\" + this.style[style] + \";\";\n }\n }\n\n if (styles) {\n needsSpan = true;\n markup += \" style=\\\"\" + utils.escape(styles) + \"\\\"\";\n }\n\n var escaped = utils.escape(this.value);\n if (needsSpan) {\n markup += \">\";\n markup += escaped;\n markup += \"\";\n return markup;\n } else {\n return escaped;\n }\n};\n\nmodule.exports = {\n span: span,\n documentFragment: documentFragment,\n symbolNode: symbolNode,\n};\n","var toInteger = require('./_to-integer');\nvar max = Math.max;\nvar min = Math.min;\nmodule.exports = function (index, length) {\n index = toInteger(index);\n return index < 0 ? max(index + length, 0) : min(index, length);\n};\n","export default function _getPrototypeOf(o) {\n _getPrototypeOf = Object.getPrototypeOf || function _getPrototypeOf(o) {\n return o.__proto__;\n };\n\n return _getPrototypeOf(o);\n}","/**\n * This is the ParseError class, which is the main error thrown by KaTeX\n * functions when something has gone wrong. This is used to distinguish internal\n * errors from errors in the expression that the user provided.\n */\nfunction ParseError(message, lexer, position) {\n var error = \"KaTeX parse error: \" + message;\n\n if (lexer !== undefined && position !== undefined) {\n // If we have the input and a position, make the error a bit fancier\n\n // Prepend some information\n error += \" at position \" + position + \": \";\n\n // Get the input\n var input = lexer._input;\n // Insert a combining underscore at the correct position\n input = input.slice(0, position) + \"\\u0332\" +\n input.slice(position);\n\n // Extract some context from the input and add it to the error\n var begin = Math.max(0, position - 15);\n var end = position + 15;\n error += input.slice(begin, end);\n }\n\n // Some hackery to make ParseError a prototype of Error\n // See http://stackoverflow.com/a/8460753\n var self = new Error(error);\n self.name = \"ParseError\";\n self.__proto__ = ParseError.prototype;\n\n self.position = position;\n return self;\n}\n\n// More hackery\nParseError.prototype.__proto__ = Error.prototype;\n\nmodule.exports = ParseError;\n","var dP = require('./_object-dp');\nvar anObject = require('./_an-object');\nvar getKeys = require('./_object-keys');\n\nmodule.exports = require('./_descriptors') ? Object.defineProperties : function defineProperties(O, Properties) {\n anObject(O);\n var keys = getKeys(Properties);\n var length = keys.length;\n var i = 0;\n var P;\n while (length > i) dP.f(O, P = keys[i++], Properties[P]);\n return O;\n};\n","/**\n * This file holds a list of all no-argument functions and single-character\n * symbols (like 'a' or ';').\n *\n * For each of the symbols, there are three properties they can have:\n * - font (required): the font to be used for this symbol. Either \"main\" (the\n normal font), or \"ams\" (the ams fonts).\n * - group (required): the ParseNode group type the symbol should have (i.e.\n \"textord\", \"mathord\", etc).\n See https://github.com/Khan/KaTeX/wiki/Examining-TeX#group-types\n * - replace: the character that this symbol or function should be\n * replaced with (i.e. \"\\phi\" has a replace value of \"\\u03d5\", the phi\n * character in the main font).\n *\n * The outermost map in the table indicates what mode the symbols should be\n * accepted in (e.g. \"math\" or \"text\").\n */\n\nmodule.exports = {\n math: {},\n text: {},\n};\n\nfunction defineSymbol(mode, font, group, replace, name) {\n module.exports[mode][name] = {\n font: font,\n group: group,\n replace: replace,\n };\n}\n\n// Some abbreviations for commonly used strings.\n// This helps minify the code, and also spotting typos using jshint.\n\n// modes:\nvar math = \"math\";\nvar text = \"text\";\n\n// fonts:\nvar main = \"main\";\nvar ams = \"ams\";\n\n// groups:\nvar accent = \"accent\";\nvar bin = \"bin\";\nvar close = \"close\";\nvar inner = \"inner\";\nvar mathord = \"mathord\";\nvar op = \"op\";\nvar open = \"open\";\nvar punct = \"punct\";\nvar rel = \"rel\";\nvar spacing = \"spacing\";\nvar textord = \"textord\";\n\n// Now comes the symbol table\n\n// Relation Symbols\ndefineSymbol(math, main, rel, \"\\u2261\", \"\\\\equiv\");\ndefineSymbol(math, main, rel, \"\\u227a\", \"\\\\prec\");\ndefineSymbol(math, main, rel, \"\\u227b\", \"\\\\succ\");\ndefineSymbol(math, main, rel, \"\\u223c\", \"\\\\sim\");\ndefineSymbol(math, main, rel, \"\\u22a5\", \"\\\\perp\");\ndefineSymbol(math, main, rel, \"\\u2aaf\", \"\\\\preceq\");\ndefineSymbol(math, main, rel, \"\\u2ab0\", \"\\\\succeq\");\ndefineSymbol(math, main, rel, \"\\u2243\", \"\\\\simeq\");\ndefineSymbol(math, main, rel, \"\\u2223\", \"\\\\mid\");\ndefineSymbol(math, main, rel, \"\\u226a\", \"\\\\ll\");\ndefineSymbol(math, main, rel, \"\\u226b\", \"\\\\gg\");\ndefineSymbol(math, main, rel, \"\\u224d\", \"\\\\asymp\");\ndefineSymbol(math, main, rel, \"\\u2225\", \"\\\\parallel\");\ndefineSymbol(math, main, rel, \"\\u22c8\", \"\\\\bowtie\");\ndefineSymbol(math, main, rel, \"\\u2323\", \"\\\\smile\");\ndefineSymbol(math, main, rel, \"\\u2291\", \"\\\\sqsubseteq\");\ndefineSymbol(math, main, rel, \"\\u2292\", \"\\\\sqsupseteq\");\ndefineSymbol(math, main, rel, \"\\u2250\", \"\\\\doteq\");\ndefineSymbol(math, main, rel, \"\\u2322\", \"\\\\frown\");\ndefineSymbol(math, main, rel, \"\\u220b\", \"\\\\ni\");\ndefineSymbol(math, main, rel, \"\\u221d\", \"\\\\propto\");\ndefineSymbol(math, main, rel, \"\\u22a2\", \"\\\\vdash\");\ndefineSymbol(math, main, rel, \"\\u22a3\", \"\\\\dashv\");\ndefineSymbol(math, main, rel, \"\\u220b\", \"\\\\owns\");\n\n// Punctuation\ndefineSymbol(math, main, punct, \"\\u002e\", \"\\\\ldotp\");\ndefineSymbol(math, main, punct, \"\\u22c5\", \"\\\\cdotp\");\n\n// Misc Symbols\ndefineSymbol(math, main, textord, \"\\u0023\", \"\\\\#\");\ndefineSymbol(math, main, textord, \"\\u0026\", \"\\\\&\");\ndefineSymbol(math, main, textord, \"\\u2135\", \"\\\\aleph\");\ndefineSymbol(math, main, textord, \"\\u2200\", \"\\\\forall\");\ndefineSymbol(math, main, textord, \"\\u210f\", \"\\\\hbar\");\ndefineSymbol(math, main, textord, \"\\u2203\", \"\\\\exists\");\ndefineSymbol(math, main, textord, \"\\u2207\", \"\\\\nabla\");\ndefineSymbol(math, main, textord, \"\\u266d\", \"\\\\flat\");\ndefineSymbol(math, main, textord, \"\\u2113\", \"\\\\ell\");\ndefineSymbol(math, main, textord, \"\\u266e\", \"\\\\natural\");\ndefineSymbol(math, main, textord, \"\\u2663\", \"\\\\clubsuit\");\ndefineSymbol(math, main, textord, \"\\u2118\", \"\\\\wp\");\ndefineSymbol(math, main, textord, \"\\u266f\", \"\\\\sharp\");\ndefineSymbol(math, main, textord, \"\\u2662\", \"\\\\diamondsuit\");\ndefineSymbol(math, main, textord, \"\\u211c\", \"\\\\Re\");\ndefineSymbol(math, main, textord, \"\\u2661\", \"\\\\heartsuit\");\ndefineSymbol(math, main, textord, \"\\u2111\", \"\\\\Im\");\ndefineSymbol(math, main, textord, \"\\u2660\", \"\\\\spadesuit\");\n\n// Math and Text\ndefineSymbol(math, main, textord, \"\\u2020\", \"\\\\dag\");\ndefineSymbol(math, main, textord, \"\\u2021\", \"\\\\ddag\");\n\n// Large Delimiters\ndefineSymbol(math, main, close, \"\\u23b1\", \"\\\\rmoustache\");\ndefineSymbol(math, main, open, \"\\u23b0\", \"\\\\lmoustache\");\ndefineSymbol(math, main, close, \"\\u27ef\", \"\\\\rgroup\");\ndefineSymbol(math, main, open, \"\\u27ee\", \"\\\\lgroup\");\n\n// Binary Operators\ndefineSymbol(math, main, bin, \"\\u2213\", \"\\\\mp\");\ndefineSymbol(math, main, bin, \"\\u2296\", \"\\\\ominus\");\ndefineSymbol(math, main, bin, \"\\u228e\", \"\\\\uplus\");\ndefineSymbol(math, main, bin, \"\\u2293\", \"\\\\sqcap\");\ndefineSymbol(math, main, bin, \"\\u2217\", \"\\\\ast\");\ndefineSymbol(math, main, bin, \"\\u2294\", \"\\\\sqcup\");\ndefineSymbol(math, main, bin, \"\\u25ef\", \"\\\\bigcirc\");\ndefineSymbol(math, main, bin, \"\\u2219\", \"\\\\bullet\");\ndefineSymbol(math, main, bin, \"\\u2021\", \"\\\\ddagger\");\ndefineSymbol(math, main, bin, \"\\u2240\", \"\\\\wr\");\ndefineSymbol(math, main, bin, \"\\u2a3f\", \"\\\\amalg\");\n\n// Arrow Symbols\ndefineSymbol(math, main, rel, \"\\u27f5\", \"\\\\longleftarrow\");\ndefineSymbol(math, main, rel, \"\\u21d0\", \"\\\\Leftarrow\");\ndefineSymbol(math, main, rel, \"\\u27f8\", \"\\\\Longleftarrow\");\ndefineSymbol(math, main, rel, \"\\u27f6\", \"\\\\longrightarrow\");\ndefineSymbol(math, main, rel, \"\\u21d2\", \"\\\\Rightarrow\");\ndefineSymbol(math, main, rel, \"\\u27f9\", \"\\\\Longrightarrow\");\ndefineSymbol(math, main, rel, \"\\u2194\", \"\\\\leftrightarrow\");\ndefineSymbol(math, main, rel, \"\\u27f7\", \"\\\\longleftrightarrow\");\ndefineSymbol(math, main, rel, \"\\u21d4\", \"\\\\Leftrightarrow\");\ndefineSymbol(math, main, rel, \"\\u27fa\", \"\\\\Longleftrightarrow\");\ndefineSymbol(math, main, rel, \"\\u21a6\", \"\\\\mapsto\");\ndefineSymbol(math, main, rel, \"\\u27fc\", \"\\\\longmapsto\");\ndefineSymbol(math, main, rel, \"\\u2197\", \"\\\\nearrow\");\ndefineSymbol(math, main, rel, \"\\u21a9\", \"\\\\hookleftarrow\");\ndefineSymbol(math, main, rel, \"\\u21aa\", \"\\\\hookrightarrow\");\ndefineSymbol(math, main, rel, \"\\u2198\", \"\\\\searrow\");\ndefineSymbol(math, main, rel, \"\\u21bc\", \"\\\\leftharpoonup\");\ndefineSymbol(math, main, rel, \"\\u21c0\", \"\\\\rightharpoonup\");\ndefineSymbol(math, main, rel, \"\\u2199\", \"\\\\swarrow\");\ndefineSymbol(math, main, rel, \"\\u21bd\", \"\\\\leftharpoondown\");\ndefineSymbol(math, main, rel, \"\\u21c1\", \"\\\\rightharpoondown\");\ndefineSymbol(math, main, rel, \"\\u2196\", \"\\\\nwarrow\");\ndefineSymbol(math, main, rel, \"\\u21cc\", \"\\\\rightleftharpoons\");\n\n// AMS Negated Binary Relations\ndefineSymbol(math, ams, rel, \"\\u226e\", \"\\\\nless\");\ndefineSymbol(math, ams, rel, \"\\ue010\", \"\\\\nleqslant\");\ndefineSymbol(math, ams, rel, \"\\ue011\", \"\\\\nleqq\");\ndefineSymbol(math, ams, rel, \"\\u2a87\", \"\\\\lneq\");\ndefineSymbol(math, ams, rel, \"\\u2268\", \"\\\\lneqq\");\ndefineSymbol(math, ams, rel, \"\\ue00c\", \"\\\\lvertneqq\");\ndefineSymbol(math, ams, rel, \"\\u22e6\", \"\\\\lnsim\");\ndefineSymbol(math, ams, rel, \"\\u2a89\", \"\\\\lnapprox\");\ndefineSymbol(math, ams, rel, \"\\u2280\", \"\\\\nprec\");\ndefineSymbol(math, ams, rel, \"\\u22e0\", \"\\\\npreceq\");\ndefineSymbol(math, ams, rel, \"\\u22e8\", \"\\\\precnsim\");\ndefineSymbol(math, ams, rel, \"\\u2ab9\", \"\\\\precnapprox\");\ndefineSymbol(math, ams, rel, \"\\u2241\", \"\\\\nsim\");\ndefineSymbol(math, ams, rel, \"\\ue006\", \"\\\\nshortmid\");\ndefineSymbol(math, ams, rel, \"\\u2224\", \"\\\\nmid\");\ndefineSymbol(math, ams, rel, \"\\u22ac\", \"\\\\nvdash\");\ndefineSymbol(math, ams, rel, \"\\u22ad\", \"\\\\nvDash\");\ndefineSymbol(math, ams, rel, \"\\u22ea\", \"\\\\ntriangleleft\");\ndefineSymbol(math, ams, rel, \"\\u22ec\", \"\\\\ntrianglelefteq\");\ndefineSymbol(math, ams, rel, \"\\u228a\", \"\\\\subsetneq\");\ndefineSymbol(math, ams, rel, \"\\ue01a\", \"\\\\varsubsetneq\");\ndefineSymbol(math, ams, rel, \"\\u2acb\", \"\\\\subsetneqq\");\ndefineSymbol(math, ams, rel, \"\\ue017\", \"\\\\varsubsetneqq\");\ndefineSymbol(math, ams, rel, \"\\u226f\", \"\\\\ngtr\");\ndefineSymbol(math, ams, rel, \"\\ue00f\", \"\\\\ngeqslant\");\ndefineSymbol(math, ams, rel, \"\\ue00e\", \"\\\\ngeqq\");\ndefineSymbol(math, ams, rel, \"\\u2a88\", \"\\\\gneq\");\ndefineSymbol(math, ams, rel, \"\\u2269\", \"\\\\gneqq\");\ndefineSymbol(math, ams, rel, \"\\ue00d\", \"\\\\gvertneqq\");\ndefineSymbol(math, ams, rel, \"\\u22e7\", \"\\\\gnsim\");\ndefineSymbol(math, ams, rel, \"\\u2a8a\", \"\\\\gnapprox\");\ndefineSymbol(math, ams, rel, \"\\u2281\", \"\\\\nsucc\");\ndefineSymbol(math, ams, rel, \"\\u22e1\", \"\\\\nsucceq\");\ndefineSymbol(math, ams, rel, \"\\u22e9\", \"\\\\succnsim\");\ndefineSymbol(math, ams, rel, \"\\u2aba\", \"\\\\succnapprox\");\ndefineSymbol(math, ams, rel, \"\\u2246\", \"\\\\ncong\");\ndefineSymbol(math, ams, rel, \"\\ue007\", \"\\\\nshortparallel\");\ndefineSymbol(math, ams, rel, \"\\u2226\", \"\\\\nparallel\");\ndefineSymbol(math, ams, rel, \"\\u22af\", \"\\\\nVDash\");\ndefineSymbol(math, ams, rel, \"\\u22eb\", \"\\\\ntriangleright\");\ndefineSymbol(math, ams, rel, \"\\u22ed\", \"\\\\ntrianglerighteq\");\ndefineSymbol(math, ams, rel, \"\\ue018\", \"\\\\nsupseteqq\");\ndefineSymbol(math, ams, rel, \"\\u228b\", \"\\\\supsetneq\");\ndefineSymbol(math, ams, rel, \"\\ue01b\", \"\\\\varsupsetneq\");\ndefineSymbol(math, ams, rel, \"\\u2acc\", \"\\\\supsetneqq\");\ndefineSymbol(math, ams, rel, \"\\ue019\", \"\\\\varsupsetneqq\");\ndefineSymbol(math, ams, rel, \"\\u22ae\", \"\\\\nVdash\");\ndefineSymbol(math, ams, rel, \"\\u2ab5\", \"\\\\precneqq\");\ndefineSymbol(math, ams, rel, \"\\u2ab6\", \"\\\\succneqq\");\ndefineSymbol(math, ams, rel, \"\\ue016\", \"\\\\nsubseteqq\");\ndefineSymbol(math, ams, bin, \"\\u22b4\", \"\\\\unlhd\");\ndefineSymbol(math, ams, bin, \"\\u22b5\", \"\\\\unrhd\");\n\n// AMS Negated Arrows\ndefineSymbol(math, ams, rel, \"\\u219a\", \"\\\\nleftarrow\");\ndefineSymbol(math, ams, rel, \"\\u219b\", \"\\\\nrightarrow\");\ndefineSymbol(math, ams, rel, \"\\u21cd\", \"\\\\nLeftarrow\");\ndefineSymbol(math, ams, rel, \"\\u21cf\", \"\\\\nRightarrow\");\ndefineSymbol(math, ams, rel, \"\\u21ae\", \"\\\\nleftrightarrow\");\ndefineSymbol(math, ams, rel, \"\\u21ce\", \"\\\\nLeftrightarrow\");\n\n// AMS Misc\ndefineSymbol(math, ams, rel, \"\\u25b3\", \"\\\\vartriangle\");\ndefineSymbol(math, ams, textord, \"\\u210f\", \"\\\\hslash\");\ndefineSymbol(math, ams, textord, \"\\u25bd\", \"\\\\triangledown\");\ndefineSymbol(math, ams, textord, \"\\u25ca\", \"\\\\lozenge\");\ndefineSymbol(math, ams, textord, \"\\u24c8\", \"\\\\circledS\");\ndefineSymbol(math, ams, textord, \"\\u00ae\", \"\\\\circledR\");\ndefineSymbol(math, ams, textord, \"\\u2221\", \"\\\\measuredangle\");\ndefineSymbol(math, ams, textord, \"\\u2204\", \"\\\\nexists\");\ndefineSymbol(math, ams, textord, \"\\u2127\", \"\\\\mho\");\ndefineSymbol(math, ams, textord, \"\\u2132\", \"\\\\Finv\");\ndefineSymbol(math, ams, textord, \"\\u2141\", \"\\\\Game\");\ndefineSymbol(math, ams, textord, \"\\u006b\", \"\\\\Bbbk\");\ndefineSymbol(math, ams, textord, \"\\u2035\", \"\\\\backprime\");\ndefineSymbol(math, ams, textord, \"\\u25b2\", \"\\\\blacktriangle\");\ndefineSymbol(math, ams, textord, \"\\u25bc\", \"\\\\blacktriangledown\");\ndefineSymbol(math, ams, textord, \"\\u25a0\", \"\\\\blacksquare\");\ndefineSymbol(math, ams, textord, \"\\u29eb\", \"\\\\blacklozenge\");\ndefineSymbol(math, ams, textord, \"\\u2605\", \"\\\\bigstar\");\ndefineSymbol(math, ams, textord, \"\\u2222\", \"\\\\sphericalangle\");\ndefineSymbol(math, ams, textord, \"\\u2201\", \"\\\\complement\");\ndefineSymbol(math, ams, textord, \"\\u00f0\", \"\\\\eth\");\ndefineSymbol(math, ams, textord, \"\\u2571\", \"\\\\diagup\");\ndefineSymbol(math, ams, textord, \"\\u2572\", \"\\\\diagdown\");\ndefineSymbol(math, ams, textord, \"\\u25a1\", \"\\\\square\");\ndefineSymbol(math, ams, textord, \"\\u25a1\", \"\\\\Box\");\ndefineSymbol(math, ams, textord, \"\\u25ca\", \"\\\\Diamond\");\ndefineSymbol(math, ams, textord, \"\\u00a5\", \"\\\\yen\");\ndefineSymbol(math, ams, textord, \"\\u2713\", \"\\\\checkmark\");\n\n// AMS Hebrew\ndefineSymbol(math, ams, textord, \"\\u2136\", \"\\\\beth\");\ndefineSymbol(math, ams, textord, \"\\u2138\", \"\\\\daleth\");\ndefineSymbol(math, ams, textord, \"\\u2137\", \"\\\\gimel\");\n\n// AMS Greek\ndefineSymbol(math, ams, textord, \"\\u03dd\", \"\\\\digamma\");\ndefineSymbol(math, ams, textord, \"\\u03f0\", \"\\\\varkappa\");\n\n// AMS Delimiters\ndefineSymbol(math, ams, open, \"\\u250c\", \"\\\\ulcorner\");\ndefineSymbol(math, ams, close, \"\\u2510\", \"\\\\urcorner\");\ndefineSymbol(math, ams, open, \"\\u2514\", \"\\\\llcorner\");\ndefineSymbol(math, ams, close, \"\\u2518\", \"\\\\lrcorner\");\n\n// AMS Binary Relations\ndefineSymbol(math, ams, rel, \"\\u2266\", \"\\\\leqq\");\ndefineSymbol(math, ams, rel, \"\\u2a7d\", \"\\\\leqslant\");\ndefineSymbol(math, ams, rel, \"\\u2a95\", \"\\\\eqslantless\");\ndefineSymbol(math, ams, rel, \"\\u2272\", \"\\\\lesssim\");\ndefineSymbol(math, ams, rel, \"\\u2a85\", \"\\\\lessapprox\");\ndefineSymbol(math, ams, rel, \"\\u224a\", \"\\\\approxeq\");\ndefineSymbol(math, ams, bin, \"\\u22d6\", \"\\\\lessdot\");\ndefineSymbol(math, ams, rel, \"\\u22d8\", \"\\\\lll\");\ndefineSymbol(math, ams, rel, \"\\u2276\", \"\\\\lessgtr\");\ndefineSymbol(math, ams, rel, \"\\u22da\", \"\\\\lesseqgtr\");\ndefineSymbol(math, ams, rel, \"\\u2a8b\", \"\\\\lesseqqgtr\");\ndefineSymbol(math, ams, rel, \"\\u2251\", \"\\\\doteqdot\");\ndefineSymbol(math, ams, rel, \"\\u2253\", \"\\\\risingdotseq\");\ndefineSymbol(math, ams, rel, \"\\u2252\", \"\\\\fallingdotseq\");\ndefineSymbol(math, ams, rel, \"\\u223d\", \"\\\\backsim\");\ndefineSymbol(math, ams, rel, \"\\u22cd\", \"\\\\backsimeq\");\ndefineSymbol(math, ams, rel, \"\\u2ac5\", \"\\\\subseteqq\");\ndefineSymbol(math, ams, rel, \"\\u22d0\", \"\\\\Subset\");\ndefineSymbol(math, ams, rel, \"\\u228f\", \"\\\\sqsubset\");\ndefineSymbol(math, ams, rel, \"\\u227c\", \"\\\\preccurlyeq\");\ndefineSymbol(math, ams, rel, \"\\u22de\", \"\\\\curlyeqprec\");\ndefineSymbol(math, ams, rel, \"\\u227e\", \"\\\\precsim\");\ndefineSymbol(math, ams, rel, \"\\u2ab7\", \"\\\\precapprox\");\ndefineSymbol(math, ams, rel, \"\\u22b2\", \"\\\\vartriangleleft\");\ndefineSymbol(math, ams, rel, \"\\u22b4\", \"\\\\trianglelefteq\");\ndefineSymbol(math, ams, rel, \"\\u22a8\", \"\\\\vDash\");\ndefineSymbol(math, ams, rel, \"\\u22aa\", \"\\\\Vvdash\");\ndefineSymbol(math, ams, rel, \"\\u2323\", \"\\\\smallsmile\");\ndefineSymbol(math, ams, rel, \"\\u2322\", \"\\\\smallfrown\");\ndefineSymbol(math, ams, rel, \"\\u224f\", \"\\\\bumpeq\");\ndefineSymbol(math, ams, rel, \"\\u224e\", \"\\\\Bumpeq\");\ndefineSymbol(math, ams, rel, \"\\u2267\", \"\\\\geqq\");\ndefineSymbol(math, ams, rel, \"\\u2a7e\", \"\\\\geqslant\");\ndefineSymbol(math, ams, rel, \"\\u2a96\", \"\\\\eqslantgtr\");\ndefineSymbol(math, ams, rel, \"\\u2273\", \"\\\\gtrsim\");\ndefineSymbol(math, ams, rel, \"\\u2a86\", \"\\\\gtrapprox\");\ndefineSymbol(math, ams, bin, \"\\u22d7\", \"\\\\gtrdot\");\ndefineSymbol(math, ams, rel, \"\\u22d9\", \"\\\\ggg\");\ndefineSymbol(math, ams, rel, \"\\u2277\", \"\\\\gtrless\");\ndefineSymbol(math, ams, rel, \"\\u22db\", \"\\\\gtreqless\");\ndefineSymbol(math, ams, rel, \"\\u2a8c\", \"\\\\gtreqqless\");\ndefineSymbol(math, ams, rel, \"\\u2256\", \"\\\\eqcirc\");\ndefineSymbol(math, ams, rel, \"\\u2257\", \"\\\\circeq\");\ndefineSymbol(math, ams, rel, \"\\u225c\", \"\\\\triangleq\");\ndefineSymbol(math, ams, rel, \"\\u223c\", \"\\\\thicksim\");\ndefineSymbol(math, ams, rel, \"\\u2248\", \"\\\\thickapprox\");\ndefineSymbol(math, ams, rel, \"\\u2ac6\", \"\\\\supseteqq\");\ndefineSymbol(math, ams, rel, \"\\u22d1\", \"\\\\Supset\");\ndefineSymbol(math, ams, rel, \"\\u2290\", \"\\\\sqsupset\");\ndefineSymbol(math, ams, rel, \"\\u227d\", \"\\\\succcurlyeq\");\ndefineSymbol(math, ams, rel, \"\\u22df\", \"\\\\curlyeqsucc\");\ndefineSymbol(math, ams, rel, \"\\u227f\", \"\\\\succsim\");\ndefineSymbol(math, ams, rel, \"\\u2ab8\", \"\\\\succapprox\");\ndefineSymbol(math, ams, rel, \"\\u22b3\", \"\\\\vartriangleright\");\ndefineSymbol(math, ams, rel, \"\\u22b5\", \"\\\\trianglerighteq\");\ndefineSymbol(math, ams, rel, \"\\u22a9\", \"\\\\Vdash\");\ndefineSymbol(math, ams, rel, \"\\u2223\", \"\\\\shortmid\");\ndefineSymbol(math, ams, rel, \"\\u2225\", \"\\\\shortparallel\");\ndefineSymbol(math, ams, rel, \"\\u226c\", \"\\\\between\");\ndefineSymbol(math, ams, rel, \"\\u22d4\", \"\\\\pitchfork\");\ndefineSymbol(math, ams, rel, \"\\u221d\", \"\\\\varpropto\");\ndefineSymbol(math, ams, rel, \"\\u25c0\", \"\\\\blacktriangleleft\");\ndefineSymbol(math, ams, rel, \"\\u2234\", \"\\\\therefore\");\ndefineSymbol(math, ams, rel, \"\\u220d\", \"\\\\backepsilon\");\ndefineSymbol(math, ams, rel, \"\\u25b6\", \"\\\\blacktriangleright\");\ndefineSymbol(math, ams, rel, \"\\u2235\", \"\\\\because\");\ndefineSymbol(math, ams, rel, \"\\u22d8\", \"\\\\llless\");\ndefineSymbol(math, ams, rel, \"\\u22d9\", \"\\\\gggtr\");\ndefineSymbol(math, ams, bin, \"\\u22b2\", \"\\\\lhd\");\ndefineSymbol(math, ams, bin, \"\\u22b3\", \"\\\\rhd\");\ndefineSymbol(math, ams, rel, \"\\u2242\", \"\\\\eqsim\");\ndefineSymbol(math, main, rel, \"\\u22c8\", \"\\\\Join\");\ndefineSymbol(math, ams, rel, \"\\u2251\", \"\\\\Doteq\");\n\n// AMS Binary Operators\ndefineSymbol(math, ams, bin, \"\\u2214\", \"\\\\dotplus\");\ndefineSymbol(math, ams, bin, \"\\u2216\", \"\\\\smallsetminus\");\ndefineSymbol(math, ams, bin, \"\\u22d2\", \"\\\\Cap\");\ndefineSymbol(math, ams, bin, \"\\u22d3\", \"\\\\Cup\");\ndefineSymbol(math, ams, bin, \"\\u2a5e\", \"\\\\doublebarwedge\");\ndefineSymbol(math, ams, bin, \"\\u229f\", \"\\\\boxminus\");\ndefineSymbol(math, ams, bin, \"\\u229e\", \"\\\\boxplus\");\ndefineSymbol(math, ams, bin, \"\\u22c7\", \"\\\\divideontimes\");\ndefineSymbol(math, ams, bin, \"\\u22c9\", \"\\\\ltimes\");\ndefineSymbol(math, ams, bin, \"\\u22ca\", \"\\\\rtimes\");\ndefineSymbol(math, ams, bin, \"\\u22cb\", \"\\\\leftthreetimes\");\ndefineSymbol(math, ams, bin, \"\\u22cc\", \"\\\\rightthreetimes\");\ndefineSymbol(math, ams, bin, \"\\u22cf\", \"\\\\curlywedge\");\ndefineSymbol(math, ams, bin, \"\\u22ce\", \"\\\\curlyvee\");\ndefineSymbol(math, ams, bin, \"\\u229d\", \"\\\\circleddash\");\ndefineSymbol(math, ams, bin, \"\\u229b\", \"\\\\circledast\");\ndefineSymbol(math, ams, bin, \"\\u22c5\", \"\\\\centerdot\");\ndefineSymbol(math, ams, bin, \"\\u22ba\", \"\\\\intercal\");\ndefineSymbol(math, ams, bin, \"\\u22d2\", \"\\\\doublecap\");\ndefineSymbol(math, ams, bin, \"\\u22d3\", \"\\\\doublecup\");\ndefineSymbol(math, ams, bin, \"\\u22a0\", \"\\\\boxtimes\");\n\n// AMS Arrows\ndefineSymbol(math, ams, rel, \"\\u21e2\", \"\\\\dashrightarrow\");\ndefineSymbol(math, ams, rel, \"\\u21e0\", \"\\\\dashleftarrow\");\ndefineSymbol(math, ams, rel, \"\\u21c7\", \"\\\\leftleftarrows\");\ndefineSymbol(math, ams, rel, \"\\u21c6\", \"\\\\leftrightarrows\");\ndefineSymbol(math, ams, rel, \"\\u21da\", \"\\\\Lleftarrow\");\ndefineSymbol(math, ams, rel, \"\\u219e\", \"\\\\twoheadleftarrow\");\ndefineSymbol(math, ams, rel, \"\\u21a2\", \"\\\\leftarrowtail\");\ndefineSymbol(math, ams, rel, \"\\u21ab\", \"\\\\looparrowleft\");\ndefineSymbol(math, ams, rel, \"\\u21cb\", \"\\\\leftrightharpoons\");\ndefineSymbol(math, ams, rel, \"\\u21b6\", \"\\\\curvearrowleft\");\ndefineSymbol(math, ams, rel, \"\\u21ba\", \"\\\\circlearrowleft\");\ndefineSymbol(math, ams, rel, \"\\u21b0\", \"\\\\Lsh\");\ndefineSymbol(math, ams, rel, \"\\u21c8\", \"\\\\upuparrows\");\ndefineSymbol(math, ams, rel, \"\\u21bf\", \"\\\\upharpoonleft\");\ndefineSymbol(math, ams, rel, \"\\u21c3\", \"\\\\downharpoonleft\");\ndefineSymbol(math, ams, rel, \"\\u22b8\", \"\\\\multimap\");\ndefineSymbol(math, ams, rel, \"\\u21ad\", \"\\\\leftrightsquigarrow\");\ndefineSymbol(math, ams, rel, \"\\u21c9\", \"\\\\rightrightarrows\");\ndefineSymbol(math, ams, rel, \"\\u21c4\", \"\\\\rightleftarrows\");\ndefineSymbol(math, ams, rel, \"\\u21a0\", \"\\\\twoheadrightarrow\");\ndefineSymbol(math, ams, rel, \"\\u21a3\", \"\\\\rightarrowtail\");\ndefineSymbol(math, ams, rel, \"\\u21ac\", \"\\\\looparrowright\");\ndefineSymbol(math, ams, rel, \"\\u21b7\", \"\\\\curvearrowright\");\ndefineSymbol(math, ams, rel, \"\\u21bb\", \"\\\\circlearrowright\");\ndefineSymbol(math, ams, rel, \"\\u21b1\", \"\\\\Rsh\");\ndefineSymbol(math, ams, rel, \"\\u21ca\", \"\\\\downdownarrows\");\ndefineSymbol(math, ams, rel, \"\\u21be\", \"\\\\upharpoonright\");\ndefineSymbol(math, ams, rel, \"\\u21c2\", \"\\\\downharpoonright\");\ndefineSymbol(math, ams, rel, \"\\u21dd\", \"\\\\rightsquigarrow\");\ndefineSymbol(math, ams, rel, \"\\u21dd\", \"\\\\leadsto\");\ndefineSymbol(math, ams, rel, \"\\u21db\", \"\\\\Rrightarrow\");\ndefineSymbol(math, ams, rel, \"\\u21be\", \"\\\\restriction\");\n\ndefineSymbol(math, main, textord, \"\\u2018\", \"`\");\ndefineSymbol(math, main, textord, \"$\", \"\\\\$\");\ndefineSymbol(math, main, textord, \"%\", \"\\\\%\");\ndefineSymbol(math, main, textord, \"_\", \"\\\\_\");\ndefineSymbol(math, main, textord, \"\\u2220\", \"\\\\angle\");\ndefineSymbol(math, main, textord, \"\\u221e\", \"\\\\infty\");\ndefineSymbol(math, main, textord, \"\\u2032\", \"\\\\prime\");\ndefineSymbol(math, main, textord, \"\\u25b3\", \"\\\\triangle\");\ndefineSymbol(math, main, textord, \"\\u0393\", \"\\\\Gamma\");\ndefineSymbol(math, main, textord, \"\\u0394\", \"\\\\Delta\");\ndefineSymbol(math, main, textord, \"\\u0398\", \"\\\\Theta\");\ndefineSymbol(math, main, textord, \"\\u039b\", \"\\\\Lambda\");\ndefineSymbol(math, main, textord, \"\\u039e\", \"\\\\Xi\");\ndefineSymbol(math, main, textord, \"\\u03a0\", \"\\\\Pi\");\ndefineSymbol(math, main, textord, \"\\u03a3\", \"\\\\Sigma\");\ndefineSymbol(math, main, textord, \"\\u03a5\", \"\\\\Upsilon\");\ndefineSymbol(math, main, textord, \"\\u03a6\", \"\\\\Phi\");\ndefineSymbol(math, main, textord, \"\\u03a8\", \"\\\\Psi\");\ndefineSymbol(math, main, textord, \"\\u03a9\", \"\\\\Omega\");\ndefineSymbol(math, main, textord, \"\\u00ac\", \"\\\\neg\");\ndefineSymbol(math, main, textord, \"\\u00ac\", \"\\\\lnot\");\ndefineSymbol(math, main, textord, \"\\u22a4\", \"\\\\top\");\ndefineSymbol(math, main, textord, \"\\u22a5\", \"\\\\bot\");\ndefineSymbol(math, main, textord, \"\\u2205\", \"\\\\emptyset\");\ndefineSymbol(math, ams, textord, \"\\u2205\", \"\\\\varnothing\");\ndefineSymbol(math, main, mathord, \"\\u03b1\", \"\\\\alpha\");\ndefineSymbol(math, main, mathord, \"\\u03b2\", \"\\\\beta\");\ndefineSymbol(math, main, mathord, \"\\u03b3\", \"\\\\gamma\");\ndefineSymbol(math, main, mathord, \"\\u03b4\", \"\\\\delta\");\ndefineSymbol(math, main, mathord, \"\\u03f5\", \"\\\\epsilon\");\ndefineSymbol(math, main, mathord, \"\\u03b6\", \"\\\\zeta\");\ndefineSymbol(math, main, mathord, \"\\u03b7\", \"\\\\eta\");\ndefineSymbol(math, main, mathord, \"\\u03b8\", \"\\\\theta\");\ndefineSymbol(math, main, mathord, \"\\u03b9\", \"\\\\iota\");\ndefineSymbol(math, main, mathord, \"\\u03ba\", \"\\\\kappa\");\ndefineSymbol(math, main, mathord, \"\\u03bb\", \"\\\\lambda\");\ndefineSymbol(math, main, mathord, \"\\u03bc\", \"\\\\mu\");\ndefineSymbol(math, main, mathord, \"\\u03bd\", \"\\\\nu\");\ndefineSymbol(math, main, mathord, \"\\u03be\", \"\\\\xi\");\ndefineSymbol(math, main, mathord, \"o\", \"\\\\omicron\");\ndefineSymbol(math, main, mathord, \"\\u03c0\", \"\\\\pi\");\ndefineSymbol(math, main, mathord, \"\\u03c1\", \"\\\\rho\");\ndefineSymbol(math, main, mathord, \"\\u03c3\", \"\\\\sigma\");\ndefineSymbol(math, main, mathord, \"\\u03c4\", \"\\\\tau\");\ndefineSymbol(math, main, mathord, \"\\u03c5\", \"\\\\upsilon\");\ndefineSymbol(math, main, mathord, \"\\u03d5\", \"\\\\phi\");\ndefineSymbol(math, main, mathord, \"\\u03c7\", \"\\\\chi\");\ndefineSymbol(math, main, mathord, \"\\u03c8\", \"\\\\psi\");\ndefineSymbol(math, main, mathord, \"\\u03c9\", \"\\\\omega\");\ndefineSymbol(math, main, mathord, \"\\u03b5\", \"\\\\varepsilon\");\ndefineSymbol(math, main, mathord, \"\\u03d1\", \"\\\\vartheta\");\ndefineSymbol(math, main, mathord, \"\\u03d6\", \"\\\\varpi\");\ndefineSymbol(math, main, mathord, \"\\u03f1\", \"\\\\varrho\");\ndefineSymbol(math, main, mathord, \"\\u03c2\", \"\\\\varsigma\");\ndefineSymbol(math, main, mathord, \"\\u03c6\", \"\\\\varphi\");\ndefineSymbol(math, main, bin, \"\\u2217\", \"*\");\ndefineSymbol(math, main, bin, \"+\", \"+\");\ndefineSymbol(math, main, bin, \"\\u2212\", \"-\");\ndefineSymbol(math, main, bin, \"\\u22c5\", \"\\\\cdot\");\ndefineSymbol(math, main, bin, \"\\u2218\", \"\\\\circ\");\ndefineSymbol(math, main, bin, \"\\u00f7\", \"\\\\div\");\ndefineSymbol(math, main, bin, \"\\u00b1\", \"\\\\pm\");\ndefineSymbol(math, main, bin, \"\\u00d7\", \"\\\\times\");\ndefineSymbol(math, main, bin, \"\\u2229\", \"\\\\cap\");\ndefineSymbol(math, main, bin, \"\\u222a\", \"\\\\cup\");\ndefineSymbol(math, main, bin, \"\\u2216\", \"\\\\setminus\");\ndefineSymbol(math, main, bin, \"\\u2227\", \"\\\\land\");\ndefineSymbol(math, main, bin, \"\\u2228\", \"\\\\lor\");\ndefineSymbol(math, main, bin, \"\\u2227\", \"\\\\wedge\");\ndefineSymbol(math, main, bin, \"\\u2228\", \"\\\\vee\");\ndefineSymbol(math, main, textord, \"\\u221a\", \"\\\\surd\");\ndefineSymbol(math, main, open, \"(\", \"(\");\ndefineSymbol(math, main, open, \"[\", \"[\");\ndefineSymbol(math, main, open, \"\\u27e8\", \"\\\\langle\");\ndefineSymbol(math, main, open, \"\\u2223\", \"\\\\lvert\");\ndefineSymbol(math, main, open, \"\\u2225\", \"\\\\lVert\");\ndefineSymbol(math, main, close, \")\", \")\");\ndefineSymbol(math, main, close, \"]\", \"]\");\ndefineSymbol(math, main, close, \"?\", \"?\");\ndefineSymbol(math, main, close, \"!\", \"!\");\ndefineSymbol(math, main, close, \"\\u27e9\", \"\\\\rangle\");\ndefineSymbol(math, main, close, \"\\u2223\", \"\\\\rvert\");\ndefineSymbol(math, main, close, \"\\u2225\", \"\\\\rVert\");\ndefineSymbol(math, main, rel, \"=\", \"=\");\ndefineSymbol(math, main, rel, \"<\", \"<\");\ndefineSymbol(math, main, rel, \">\", \">\");\ndefineSymbol(math, main, rel, \":\", \":\");\ndefineSymbol(math, main, rel, \"\\u2248\", \"\\\\approx\");\ndefineSymbol(math, main, rel, \"\\u2245\", \"\\\\cong\");\ndefineSymbol(math, main, rel, \"\\u2265\", \"\\\\ge\");\ndefineSymbol(math, main, rel, \"\\u2265\", \"\\\\geq\");\ndefineSymbol(math, main, rel, \"\\u2190\", \"\\\\gets\");\ndefineSymbol(math, main, rel, \">\", \"\\\\gt\");\ndefineSymbol(math, main, rel, \"\\u2208\", \"\\\\in\");\ndefineSymbol(math, main, rel, \"\\u2209\", \"\\\\notin\");\ndefineSymbol(math, main, rel, \"\\u2282\", \"\\\\subset\");\ndefineSymbol(math, main, rel, \"\\u2283\", \"\\\\supset\");\ndefineSymbol(math, main, rel, \"\\u2286\", \"\\\\subseteq\");\ndefineSymbol(math, main, rel, \"\\u2287\", \"\\\\supseteq\");\ndefineSymbol(math, ams, rel, \"\\u2288\", \"\\\\nsubseteq\");\ndefineSymbol(math, ams, rel, \"\\u2289\", \"\\\\nsupseteq\");\ndefineSymbol(math, main, rel, \"\\u22a8\", \"\\\\models\");\ndefineSymbol(math, main, rel, \"\\u2190\", \"\\\\leftarrow\");\ndefineSymbol(math, main, rel, \"\\u2264\", \"\\\\le\");\ndefineSymbol(math, main, rel, \"\\u2264\", \"\\\\leq\");\ndefineSymbol(math, main, rel, \"<\", \"\\\\lt\");\ndefineSymbol(math, main, rel, \"\\u2260\", \"\\\\ne\");\ndefineSymbol(math, main, rel, \"\\u2260\", \"\\\\neq\");\ndefineSymbol(math, main, rel, \"\\u2192\", \"\\\\rightarrow\");\ndefineSymbol(math, main, rel, \"\\u2192\", \"\\\\to\");\ndefineSymbol(math, ams, rel, \"\\u2271\", \"\\\\ngeq\");\ndefineSymbol(math, ams, rel, \"\\u2270\", \"\\\\nleq\");\ndefineSymbol(math, main, spacing, null, \"\\\\!\");\ndefineSymbol(math, main, spacing, \"\\u00a0\", \"\\\\ \");\ndefineSymbol(math, main, spacing, \"\\u00a0\", \"~\");\ndefineSymbol(math, main, spacing, null, \"\\\\,\");\ndefineSymbol(math, main, spacing, null, \"\\\\:\");\ndefineSymbol(math, main, spacing, null, \"\\\\;\");\ndefineSymbol(math, main, spacing, null, \"\\\\enspace\");\ndefineSymbol(math, main, spacing, null, \"\\\\qquad\");\ndefineSymbol(math, main, spacing, null, \"\\\\quad\");\ndefineSymbol(math, main, spacing, \"\\u00a0\", \"\\\\space\");\ndefineSymbol(math, main, punct, \",\", \",\");\ndefineSymbol(math, main, punct, \";\", \";\");\ndefineSymbol(math, main, punct, \":\", \"\\\\colon\");\ndefineSymbol(math, ams, bin, \"\\u22bc\", \"\\\\barwedge\");\ndefineSymbol(math, ams, bin, \"\\u22bb\", \"\\\\veebar\");\ndefineSymbol(math, main, bin, \"\\u2299\", \"\\\\odot\");\ndefineSymbol(math, main, bin, \"\\u2295\", \"\\\\oplus\");\ndefineSymbol(math, main, bin, \"\\u2297\", \"\\\\otimes\");\ndefineSymbol(math, main, textord, \"\\u2202\", \"\\\\partial\");\ndefineSymbol(math, main, bin, \"\\u2298\", \"\\\\oslash\");\ndefineSymbol(math, ams, bin, \"\\u229a\", \"\\\\circledcirc\");\ndefineSymbol(math, ams, bin, \"\\u22a1\", \"\\\\boxdot\");\ndefineSymbol(math, main, bin, \"\\u25b3\", \"\\\\bigtriangleup\");\ndefineSymbol(math, main, bin, \"\\u25bd\", \"\\\\bigtriangledown\");\ndefineSymbol(math, main, bin, \"\\u2020\", \"\\\\dagger\");\ndefineSymbol(math, main, bin, \"\\u22c4\", \"\\\\diamond\");\ndefineSymbol(math, main, bin, \"\\u22c6\", \"\\\\star\");\ndefineSymbol(math, main, bin, \"\\u25c3\", \"\\\\triangleleft\");\ndefineSymbol(math, main, bin, \"\\u25b9\", \"\\\\triangleright\");\ndefineSymbol(math, main, open, \"{\", \"\\\\{\");\ndefineSymbol(math, main, close, \"}\", \"\\\\}\");\ndefineSymbol(math, main, open, \"{\", \"\\\\lbrace\");\ndefineSymbol(math, main, close, \"}\", \"\\\\rbrace\");\ndefineSymbol(math, main, open, \"[\", \"\\\\lbrack\");\ndefineSymbol(math, main, close, \"]\", \"\\\\rbrack\");\ndefineSymbol(math, main, open, \"\\u230a\", \"\\\\lfloor\");\ndefineSymbol(math, main, close, \"\\u230b\", \"\\\\rfloor\");\ndefineSymbol(math, main, open, \"\\u2308\", \"\\\\lceil\");\ndefineSymbol(math, main, close, \"\\u2309\", \"\\\\rceil\");\ndefineSymbol(math, main, textord, \"\\\\\", \"\\\\backslash\");\ndefineSymbol(math, main, textord, \"\\u2223\", \"|\");\ndefineSymbol(math, main, textord, \"\\u2223\", \"\\\\vert\");\ndefineSymbol(math, main, textord, \"\\u2225\", \"\\\\|\");\ndefineSymbol(math, main, textord, \"\\u2225\", \"\\\\Vert\");\ndefineSymbol(math, main, rel, \"\\u2191\", \"\\\\uparrow\");\ndefineSymbol(math, main, rel, \"\\u21d1\", \"\\\\Uparrow\");\ndefineSymbol(math, main, rel, \"\\u2193\", \"\\\\downarrow\");\ndefineSymbol(math, main, rel, \"\\u21d3\", \"\\\\Downarrow\");\ndefineSymbol(math, main, rel, \"\\u2195\", \"\\\\updownarrow\");\ndefineSymbol(math, main, rel, \"\\u21d5\", \"\\\\Updownarrow\");\ndefineSymbol(math, math, op, \"\\u2210\", \"\\\\coprod\");\ndefineSymbol(math, math, op, \"\\u22c1\", \"\\\\bigvee\");\ndefineSymbol(math, math, op, \"\\u22c0\", \"\\\\bigwedge\");\ndefineSymbol(math, math, op, \"\\u2a04\", \"\\\\biguplus\");\ndefineSymbol(math, math, op, \"\\u22c2\", \"\\\\bigcap\");\ndefineSymbol(math, math, op, \"\\u22c3\", \"\\\\bigcup\");\ndefineSymbol(math, math, op, \"\\u222b\", \"\\\\int\");\ndefineSymbol(math, math, op, \"\\u222b\", \"\\\\intop\");\ndefineSymbol(math, math, op, \"\\u222c\", \"\\\\iint\");\ndefineSymbol(math, math, op, \"\\u222d\", \"\\\\iiint\");\ndefineSymbol(math, math, op, \"\\u220f\", \"\\\\prod\");\ndefineSymbol(math, math, op, \"\\u2211\", \"\\\\sum\");\ndefineSymbol(math, math, op, \"\\u2a02\", \"\\\\bigotimes\");\ndefineSymbol(math, math, op, \"\\u2a01\", \"\\\\bigoplus\");\ndefineSymbol(math, math, op, \"\\u2a00\", \"\\\\bigodot\");\ndefineSymbol(math, math, op, \"\\u222e\", \"\\\\oint\");\ndefineSymbol(math, math, op, \"\\u2a06\", \"\\\\bigsqcup\");\ndefineSymbol(math, math, op, \"\\u222b\", \"\\\\smallint\");\ndefineSymbol(math, main, inner, \"\\u2026\", \"\\\\ldots\");\ndefineSymbol(math, main, inner, \"\\u22ef\", \"\\\\cdots\");\ndefineSymbol(math, main, inner, \"\\u22f1\", \"\\\\ddots\");\ndefineSymbol(math, main, textord, \"\\u22ee\", \"\\\\vdots\");\ndefineSymbol(math, main, accent, \"\\u00b4\", \"\\\\acute\");\ndefineSymbol(math, main, accent, \"\\u0060\", \"\\\\grave\");\ndefineSymbol(math, main, accent, \"\\u00a8\", \"\\\\ddot\");\ndefineSymbol(math, main, accent, \"\\u007e\", \"\\\\tilde\");\ndefineSymbol(math, main, accent, \"\\u00af\", \"\\\\bar\");\ndefineSymbol(math, main, accent, \"\\u02d8\", \"\\\\breve\");\ndefineSymbol(math, main, accent, \"\\u02c7\", \"\\\\check\");\ndefineSymbol(math, main, accent, \"\\u005e\", \"\\\\hat\");\ndefineSymbol(math, main, accent, \"\\u20d7\", \"\\\\vec\");\ndefineSymbol(math, main, accent, \"\\u02d9\", \"\\\\dot\");\ndefineSymbol(math, main, mathord, \"\\u0131\", \"\\\\imath\");\ndefineSymbol(math, main, mathord, \"\\u0237\", \"\\\\jmath\");\n\ndefineSymbol(text, main, spacing, \"\\u00a0\", \"\\\\ \");\ndefineSymbol(text, main, spacing, \"\\u00a0\", \" \");\ndefineSymbol(text, main, spacing, \"\\u00a0\", \"~\");\n\n// There are lots of symbols which are the same, so we add them in afterwards.\nvar i;\nvar ch;\n\n// All of these are textords in math mode\nvar mathTextSymbols = \"0123456789/@.\\\"\";\nfor (i = 0; i < mathTextSymbols.length; i++) {\n ch = mathTextSymbols.charAt(i);\n defineSymbol(math, main, textord, ch, ch);\n}\n\n// All of these are textords in text mode\nvar textSymbols = \"0123456789`!@*()-=+[]'\\\";:?/.,\";\nfor (i = 0; i < textSymbols.length; i++) {\n ch = textSymbols.charAt(i);\n defineSymbol(text, main, textord, ch, ch);\n}\n\n// All of these are textords in text mode, and mathords in math mode\nvar letters = \"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ\";\nfor (i = 0; i < letters.length; i++) {\n ch = letters.charAt(i);\n defineSymbol(math, main, mathord, ch, ch);\n defineSymbol(text, main, textord, ch, ch);\n}\n","'use strict';\nvar $at = require('./_string-at')(true);\n\n// 21.1.3.27 String.prototype[@@iterator]()\nrequire('./_iter-define')(String, 'String', function (iterated) {\n this._t = String(iterated); // target\n this._i = 0; // next index\n// 21.1.5.2.1 %StringIteratorPrototype%.next()\n}, function () {\n var O = this._t;\n var index = this._i;\n var point;\n if (index >= O.length) return { value: undefined, done: true };\n point = $at(O, index);\n this._i += point.length;\n return { value: point, done: false };\n});\n","// IE 8- don't enum bug keys\nmodule.exports = (\n 'constructor,hasOwnProperty,isPrototypeOf,propertyIsEnumerable,toLocaleString,toString,valueOf'\n).split(',');\n","module.exports = { \"default\": require(\"core-js/library/fn/get-iterator\"), __esModule: true };","module.exports = { \"default\": require(\"core-js/library/fn/object/keys\"), __esModule: true };","var ctx = require('./_ctx');\nvar invoke = require('./_invoke');\nvar html = require('./_html');\nvar cel = require('./_dom-create');\nvar global = require('./_global');\nvar process = global.process;\nvar setTask = global.setImmediate;\nvar clearTask = global.clearImmediate;\nvar MessageChannel = global.MessageChannel;\nvar Dispatch = global.Dispatch;\nvar counter = 0;\nvar queue = {};\nvar ONREADYSTATECHANGE = 'onreadystatechange';\nvar defer, channel, port;\nvar run = function () {\n var id = +this;\n // eslint-disable-next-line no-prototype-builtins\n if (queue.hasOwnProperty(id)) {\n var fn = queue[id];\n delete queue[id];\n fn();\n }\n};\nvar listener = function (event) {\n run.call(event.data);\n};\n// Node.js 0.9+ & IE10+ has setImmediate, otherwise:\nif (!setTask || !clearTask) {\n setTask = function setImmediate(fn) {\n var args = [];\n var i = 1;\n while (arguments.length > i) args.push(arguments[i++]);\n queue[++counter] = function () {\n // eslint-disable-next-line no-new-func\n invoke(typeof fn == 'function' ? fn : Function(fn), args);\n };\n defer(counter);\n return counter;\n };\n clearTask = function clearImmediate(id) {\n delete queue[id];\n };\n // Node.js 0.8-\n if (require('./_cof')(process) == 'process') {\n defer = function (id) {\n process.nextTick(ctx(run, id, 1));\n };\n // Sphere (JS game engine) Dispatch API\n } else if (Dispatch && Dispatch.now) {\n defer = function (id) {\n Dispatch.now(ctx(run, id, 1));\n };\n // Browsers with MessageChannel, includes WebWorkers\n } else if (MessageChannel) {\n channel = new MessageChannel();\n port = channel.port2;\n channel.port1.onmessage = listener;\n defer = ctx(port.postMessage, port, 1);\n // Browsers with postMessage, skip WebWorkers\n // IE8 has postMessage, but it's sync & typeof its postMessage is 'object'\n } else if (global.addEventListener && typeof postMessage == 'function' && !global.importScripts) {\n defer = function (id) {\n global.postMessage(id + '', '*');\n };\n global.addEventListener('message', listener, false);\n // IE8-\n } else if (ONREADYSTATECHANGE in cel('script')) {\n defer = function (id) {\n html.appendChild(cel('script'))[ONREADYSTATECHANGE] = function () {\n html.removeChild(this);\n run.call(id);\n };\n };\n // Rest old browsers\n } else {\n defer = function (id) {\n setTimeout(ctx(run, id, 1), 0);\n };\n }\n}\nmodule.exports = {\n set: setTask,\n clear: clearTask\n};\n","// lheading (---, ===)\n\n'use strict';\n\n\nmodule.exports = function lheading(state, startLine, endLine/*, silent*/) {\n var content, terminate, i, l, token, pos, max, level, marker,\n nextLine = startLine + 1,\n terminatorRules = state.md.block.ruler.getRules('paragraph');\n\n // jump line-by-line until empty one or EOF\n for (; nextLine < endLine && !state.isEmpty(nextLine); nextLine++) {\n // this would be a code block normally, but after paragraph\n // it's considered a lazy continuation regardless of what's there\n if (state.sCount[nextLine] - state.blkIndent > 3) { continue; }\n\n //\n // Check for underline in setext header\n //\n if (state.sCount[nextLine] >= state.blkIndent) {\n pos = state.bMarks[nextLine] + state.tShift[nextLine];\n max = state.eMarks[nextLine];\n\n if (pos < max) {\n marker = state.src.charCodeAt(pos);\n\n if (marker === 0x2D/* - */ || marker === 0x3D/* = */) {\n pos = state.skipChars(pos, marker);\n pos = state.skipSpaces(pos);\n\n if (pos >= max) {\n level = (marker === 0x3D/* = */ ? 1 : 2);\n break;\n }\n }\n }\n }\n\n // quirk for blockquotes, this line should already be checked by that rule\n if (state.sCount[nextLine] < 0) { continue; }\n\n // Some tags can terminate paragraph without empty line.\n terminate = false;\n for (i = 0, l = terminatorRules.length; i < l; i++) {\n if (terminatorRules[i](state, nextLine, endLine, true)) {\n terminate = true;\n break;\n }\n }\n if (terminate) { break; }\n }\n\n if (!level) {\n // Didn't find valid underline\n return false;\n }\n\n content = state.getLines(startLine, nextLine, state.blkIndent, false).trim();\n\n state.line = nextLine + 1;\n\n token = state.push('heading_open', 'h' + String(level), 1);\n token.markup = String.fromCharCode(marker);\n token.map = [ startLine, state.line ];\n\n token = state.push('inline', '', 0);\n token.content = content;\n token.map = [ startLine, state.line - 1 ];\n token.children = [];\n\n token = state.push('heading_close', 'h' + String(level), -1);\n token.markup = String.fromCharCode(marker);\n\n return true;\n};\n","module.exports = require('./lib/uslug');","// 7.1.1 ToPrimitive(input [, PreferredType])\nvar isObject = require('./_is-object');\n// instead of the ES6 spec version, we didn't implement @@toPrimitive case\n// and the second argument - flag - preferred type is a string\nmodule.exports = function (it, S) {\n if (!isObject(it)) return it;\n var fn, val;\n if (S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;\n if (typeof (fn = it.valueOf) == 'function' && !isObject(val = fn.call(it))) return val;\n if (!S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;\n throw TypeError(\"Can't convert object to primitive value\");\n};\n","// \"Zero\" preset, with nothing enabled. Useful for manual configuring of simple\n// modes. For example, to parse bold/italic only.\n\n'use strict';\n\n\nmodule.exports = {\n options: {\n html: false, // Enable HTML tags in source\n xhtmlOut: false, // Use '/' to close single tags ( )\n breaks: false, // Convert '\\n' in paragraphs into \n langPrefix: 'language-', // CSS language prefix for fenced blocks\n linkify: false, // autoconvert URL-like texts to links\n\n // Enable some language-neutral replacements + quotes beautification\n typographer: false,\n\n // Double + single quotes replacement pairs, when typographer enabled,\n // and smartquotes on. Could be either a String or an Array.\n //\n // For example, you can use '«»„“' for Russian, '„“‚‘' for German,\n // and ['«\\xA0', '\\xA0»', '‹\\xA0', '\\xA0›'] for French (including nbsp).\n quotes: '\\u201c\\u201d\\u2018\\u2019', /* “”‘’ */\n\n // Highlighter function. Should return escaped HTML,\n // or '' if the source string is not changed and should be escaped externaly.\n // If result starts with 0) {\n throw new Error('Invalid string. Length must be a multiple of 4')\n }\n\n // Trim off extra bytes after placeholder bytes are found\n // See: https://github.com/beatgammit/base64-js/issues/42\n var validLen = b64.indexOf('=')\n if (validLen === -1) validLen = len\n\n var placeHoldersLen = validLen === len\n ? 0\n : 4 - (validLen % 4)\n\n return [validLen, placeHoldersLen]\n}\n\n// base64 is 4/3 + up to two characters of the original data\nfunction byteLength (b64) {\n var lens = getLens(b64)\n var validLen = lens[0]\n var placeHoldersLen = lens[1]\n return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen\n}\n\nfunction _byteLength (b64, validLen, placeHoldersLen) {\n return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen\n}\n\nfunction toByteArray (b64) {\n var tmp\n var lens = getLens(b64)\n var validLen = lens[0]\n var placeHoldersLen = lens[1]\n\n var arr = new Arr(_byteLength(b64, validLen, placeHoldersLen))\n\n var curByte = 0\n\n // if there are placeholders, only get up to the last complete 4 chars\n var len = placeHoldersLen > 0\n ? validLen - 4\n : validLen\n\n for (var i = 0; i < len; i += 4) {\n tmp =\n (revLookup[b64.charCodeAt(i)] << 18) |\n (revLookup[b64.charCodeAt(i + 1)] << 12) |\n (revLookup[b64.charCodeAt(i + 2)] << 6) |\n revLookup[b64.charCodeAt(i + 3)]\n arr[curByte++] = (tmp >> 16) & 0xFF\n arr[curByte++] = (tmp >> 8) & 0xFF\n arr[curByte++] = tmp & 0xFF\n }\n\n if (placeHoldersLen === 2) {\n tmp =\n (revLookup[b64.charCodeAt(i)] << 2) |\n (revLookup[b64.charCodeAt(i + 1)] >> 4)\n arr[curByte++] = tmp & 0xFF\n }\n\n if (placeHoldersLen === 1) {\n tmp =\n (revLookup[b64.charCodeAt(i)] << 10) |\n (revLookup[b64.charCodeAt(i + 1)] << 4) |\n (revLookup[b64.charCodeAt(i + 2)] >> 2)\n arr[curByte++] = (tmp >> 8) & 0xFF\n arr[curByte++] = tmp & 0xFF\n }\n\n return arr\n}\n\nfunction tripletToBase64 (num) {\n return lookup[num >> 18 & 0x3F] +\n lookup[num >> 12 & 0x3F] +\n lookup[num >> 6 & 0x3F] +\n lookup[num & 0x3F]\n}\n\nfunction encodeChunk (uint8, start, end) {\n var tmp\n var output = []\n for (var i = start; i < end; i += 3) {\n tmp =\n ((uint8[i] << 16) & 0xFF0000) +\n ((uint8[i + 1] << 8) & 0xFF00) +\n (uint8[i + 2] & 0xFF)\n output.push(tripletToBase64(tmp))\n }\n return output.join('')\n}\n\nfunction fromByteArray (uint8) {\n var tmp\n var len = uint8.length\n var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes\n var parts = []\n var maxChunkLength = 16383 // must be multiple of 3\n\n // go through the array every three bytes, we'll deal with trailing stuff later\n for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {\n parts.push(encodeChunk(\n uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)\n ))\n }\n\n // pad the end with zeros, but make sure to not forget the extra bytes\n if (extraBytes === 1) {\n tmp = uint8[len - 1]\n parts.push(\n lookup[tmp >> 2] +\n lookup[(tmp << 4) & 0x3F] +\n '=='\n )\n } else if (extraBytes === 2) {\n tmp = (uint8[len - 2] << 8) + uint8[len - 1]\n parts.push(\n lookup[tmp >> 10] +\n lookup[(tmp >> 4) & 0x3F] +\n lookup[(tmp << 2) & 0x3F] +\n '='\n )\n }\n\n return parts.join('')\n}\n","// Merge adjacent text nodes into one, and re-calculate all token levels\n//\n'use strict';\n\n\nmodule.exports = function text_collapse(state) {\n var curr, last,\n level = 0,\n tokens = state.tokens,\n max = state.tokens.length;\n\n for (curr = last = 0; curr < max; curr++) {\n // re-calculate levels\n level += tokens[curr].nesting;\n tokens[curr].level = level;\n\n if (tokens[curr].type === 'text' &&\n curr + 1 < max &&\n tokens[curr + 1].type === 'text') {\n\n // collapse two adjacent text nodes\n tokens[curr + 1].content = tokens[curr].content + tokens[curr + 1].content;\n } else {\n if (curr !== last) { tokens[last] = tokens[curr]; }\n\n last++;\n }\n }\n\n if (curr !== last) {\n tokens.length = last;\n }\n};\n","var isObject = require('./_is-object');\nvar document = require('./_global').document;\n// typeof document.createElement is 'object' in old IE\nvar is = isObject(document) && isObject(document.createElement);\nmodule.exports = function (it) {\n return is ? document.createElement(it) : {};\n};\n","// getting tag from 19.1.3.6 Object.prototype.toString()\nvar cof = require('./_cof');\nvar TAG = require('./_wks')('toStringTag');\n// ES3 wrong here\nvar ARG = cof(function () { return arguments; }()) == 'Arguments';\n\n// fallback for IE11 Script Access Denied error\nvar tryGet = function (it, key) {\n try {\n return it[key];\n } catch (e) { /* empty */ }\n};\n\nmodule.exports = function (it) {\n var O, T, B;\n return it === undefined ? 'Undefined' : it === null ? 'Null'\n // @@toStringTag case\n : typeof (T = tryGet(O = Object(it), TAG)) == 'string' ? T\n // builtinTag case\n : ARG ? cof(O)\n // ES3 arguments fallback\n : (B = cof(O)) == 'Object' && typeof O.callee == 'function' ? 'Arguments' : B;\n};\n","var clone = (function() {\n'use strict';\n\nfunction _instanceof(obj, type) {\n return type != null && obj instanceof type;\n}\n\nvar nativeMap;\ntry {\n nativeMap = Map;\n} catch(_) {\n // maybe a reference error because no `Map`. Give it a dummy value that no\n // value will ever be an instanceof.\n nativeMap = function() {};\n}\n\nvar nativeSet;\ntry {\n nativeSet = Set;\n} catch(_) {\n nativeSet = function() {};\n}\n\nvar nativePromise;\ntry {\n nativePromise = Promise;\n} catch(_) {\n nativePromise = function() {};\n}\n\n/**\n * Clones (copies) an Object using deep copying.\n *\n * This function supports circular references by default, but if you are certain\n * there are no circular references in your object, you can save some CPU time\n * by calling clone(obj, false).\n *\n * Caution: if `circular` is false and `parent` contains circular references,\n * your program may enter an infinite loop and crash.\n *\n * @param `parent` - the object to be cloned\n * @param `circular` - set to true if the object to be cloned may contain\n * circular references. (optional - true by default)\n * @param `depth` - set to a number if the object is only to be cloned to\n * a particular depth. (optional - defaults to Infinity)\n * @param `prototype` - sets the prototype to be used when cloning an object.\n * (optional - defaults to parent prototype).\n * @param `includeNonEnumerable` - set to true if the non-enumerable properties\n * should be cloned as well. Non-enumerable properties on the prototype\n * chain will be ignored. (optional - false by default)\n*/\nfunction clone(parent, circular, depth, prototype, includeNonEnumerable) {\n if (typeof circular === 'object') {\n depth = circular.depth;\n prototype = circular.prototype;\n includeNonEnumerable = circular.includeNonEnumerable;\n circular = circular.circular;\n }\n // maintain two arrays for circular references, where corresponding parents\n // and children have the same index\n var allParents = [];\n var allChildren = [];\n\n var useBuffer = typeof Buffer != 'undefined';\n\n if (typeof circular == 'undefined')\n circular = true;\n\n if (typeof depth == 'undefined')\n depth = Infinity;\n\n // recurse this function so we don't reset allParents and allChildren\n function _clone(parent, depth) {\n // cloning null always returns null\n if (parent === null)\n return null;\n\n if (depth === 0)\n return parent;\n\n var child;\n var proto;\n if (typeof parent != 'object') {\n return parent;\n }\n\n if (_instanceof(parent, nativeMap)) {\n child = new nativeMap();\n } else if (_instanceof(parent, nativeSet)) {\n child = new nativeSet();\n } else if (_instanceof(parent, nativePromise)) {\n child = new nativePromise(function (resolve, reject) {\n parent.then(function(value) {\n resolve(_clone(value, depth - 1));\n }, function(err) {\n reject(_clone(err, depth - 1));\n });\n });\n } else if (clone.__isArray(parent)) {\n child = [];\n } else if (clone.__isRegExp(parent)) {\n child = new RegExp(parent.source, __getRegExpFlags(parent));\n if (parent.lastIndex) child.lastIndex = parent.lastIndex;\n } else if (clone.__isDate(parent)) {\n child = new Date(parent.getTime());\n } else if (useBuffer && Buffer.isBuffer(parent)) {\n if (Buffer.allocUnsafe) {\n // Node.js >= 4.5.0\n child = Buffer.allocUnsafe(parent.length);\n } else {\n // Older Node.js versions\n child = new Buffer(parent.length);\n }\n parent.copy(child);\n return child;\n } else if (_instanceof(parent, Error)) {\n child = Object.create(parent);\n } else {\n if (typeof prototype == 'undefined') {\n proto = Object.getPrototypeOf(parent);\n child = Object.create(proto);\n }\n else {\n child = Object.create(prototype);\n proto = prototype;\n }\n }\n\n if (circular) {\n var index = allParents.indexOf(parent);\n\n if (index != -1) {\n return allChildren[index];\n }\n allParents.push(parent);\n allChildren.push(child);\n }\n\n if (_instanceof(parent, nativeMap)) {\n parent.forEach(function(value, key) {\n var keyChild = _clone(key, depth - 1);\n var valueChild = _clone(value, depth - 1);\n child.set(keyChild, valueChild);\n });\n }\n if (_instanceof(parent, nativeSet)) {\n parent.forEach(function(value) {\n var entryChild = _clone(value, depth - 1);\n child.add(entryChild);\n });\n }\n\n for (var i in parent) {\n var attrs;\n if (proto) {\n attrs = Object.getOwnPropertyDescriptor(proto, i);\n }\n\n if (attrs && attrs.set == null) {\n continue;\n }\n child[i] = _clone(parent[i], depth - 1);\n }\n\n if (Object.getOwnPropertySymbols) {\n var symbols = Object.getOwnPropertySymbols(parent);\n for (var i = 0; i < symbols.length; i++) {\n // Don't need to worry about cloning a symbol because it is a primitive,\n // like a number or string.\n var symbol = symbols[i];\n var descriptor = Object.getOwnPropertyDescriptor(parent, symbol);\n if (descriptor && !descriptor.enumerable && !includeNonEnumerable) {\n continue;\n }\n child[symbol] = _clone(parent[symbol], depth - 1);\n if (!descriptor.enumerable) {\n Object.defineProperty(child, symbol, {\n enumerable: false\n });\n }\n }\n }\n\n if (includeNonEnumerable) {\n var allPropertyNames = Object.getOwnPropertyNames(parent);\n for (var i = 0; i < allPropertyNames.length; i++) {\n var propertyName = allPropertyNames[i];\n var descriptor = Object.getOwnPropertyDescriptor(parent, propertyName);\n if (descriptor && descriptor.enumerable) {\n continue;\n }\n child[propertyName] = _clone(parent[propertyName], depth - 1);\n Object.defineProperty(child, propertyName, {\n enumerable: false\n });\n }\n }\n\n return child;\n }\n\n return _clone(parent, depth);\n}\n\n/**\n * Simple flat clone using prototype, accepts only objects, usefull for property\n * override on FLAT configuration object (no nested props).\n *\n * USE WITH CAUTION! This may not behave as you wish if you do not know how this\n * works.\n */\nclone.clonePrototype = function clonePrototype(parent) {\n if (parent === null)\n return null;\n\n var c = function () {};\n c.prototype = parent;\n return new c();\n};\n\n// private utility functions\n\nfunction __objToStr(o) {\n return Object.prototype.toString.call(o);\n}\nclone.__objToStr = __objToStr;\n\nfunction __isDate(o) {\n return typeof o === 'object' && __objToStr(o) === '[object Date]';\n}\nclone.__isDate = __isDate;\n\nfunction __isArray(o) {\n return typeof o === 'object' && __objToStr(o) === '[object Array]';\n}\nclone.__isArray = __isArray;\n\nfunction __isRegExp(o) {\n return typeof o === 'object' && __objToStr(o) === '[object RegExp]';\n}\nclone.__isRegExp = __isRegExp;\n\nfunction __getRegExpFlags(re) {\n var flags = '';\n if (re.global) flags += 'g';\n if (re.ignoreCase) flags += 'i';\n if (re.multiline) flags += 'm';\n return flags;\n}\nclone.__getRegExpFlags = __getRegExpFlags;\n\nreturn clone;\n})();\n\nif (typeof module === 'object' && module.exports) {\n module.exports = clone;\n}\n","// 7.1.13 ToObject(argument)\nvar defined = require('./_defined');\nmodule.exports = function (it) {\n return Object(defined(it));\n};\n","// 7.2.1 RequireObjectCoercible(argument)\nmodule.exports = function (it) {\n if (it == undefined) throw TypeError(\"Can't call method on \" + it);\n return it;\n};\n","var classof = require('./_classof');\nvar ITERATOR = require('./_wks')('iterator');\nvar Iterators = require('./_iterators');\nmodule.exports = require('./_core').getIteratorMethod = function (it) {\n if (it != undefined) return it[ITERATOR]\n || it['@@iterator']\n || Iterators[classof(it)];\n};\n","/* globals __VUE_SSR_CONTEXT__ */\n\n// IMPORTANT: Do NOT use ES2015 features in this file (except for modules).\n// This module is a runtime utility for cleaner component module output and will\n// be included in the final webpack user bundle.\n\nexport default function normalizeComponent (\n scriptExports,\n render,\n staticRenderFns,\n functionalTemplate,\n injectStyles,\n scopeId,\n moduleIdentifier, /* server only */\n shadowMode /* vue-cli only */\n) {\n // Vue.extend constructor export interop\n var options = typeof scriptExports === 'function'\n ? scriptExports.options\n : scriptExports\n\n // render functions\n if (render) {\n options.render = render\n options.staticRenderFns = staticRenderFns\n options._compiled = true\n }\n\n // functional template\n if (functionalTemplate) {\n options.functional = true\n }\n\n // scopedId\n if (scopeId) {\n options._scopeId = 'data-v-' + scopeId\n }\n\n var hook\n if (moduleIdentifier) { // server build\n hook = function (context) {\n // 2.3 injection\n context =\n context || // cached call\n (this.$vnode && this.$vnode.ssrContext) || // stateful\n (this.parent && this.parent.$vnode && this.parent.$vnode.ssrContext) // functional\n // 2.2 with runInNewContext: true\n if (!context && typeof __VUE_SSR_CONTEXT__ !== 'undefined') {\n context = __VUE_SSR_CONTEXT__\n }\n // inject component styles\n if (injectStyles) {\n injectStyles.call(this, context)\n }\n // register component module identifier for async chunk inferrence\n if (context && context._registeredComponents) {\n context._registeredComponents.add(moduleIdentifier)\n }\n }\n // used by ssr in case component is cached and beforeCreate\n // never gets called\n options._ssrRegister = hook\n } else if (injectStyles) {\n hook = shadowMode\n ? function () { injectStyles.call(this, this.$root.$options.shadowRoot) }\n : injectStyles\n }\n\n if (hook) {\n if (options.functional) {\n // for template-only hot-reload because in that case the render fn doesn't\n // go through the normalizer\n options._injectStyles = hook\n // register for functioal component in vue file\n var originalRender = options.render\n options.render = function renderWithStyleInjection (h, context) {\n hook.call(context)\n return originalRender(h, context)\n }\n } else {\n // inject component registration as beforeCreate hook\n var existing = options.beforeCreate\n options.beforeCreate = existing\n ? [].concat(existing, hook)\n : [hook]\n }\n }\n\n return {\n exports: scriptExports,\n options: options\n }\n}\n","// Process autolinks ''\n\n'use strict';\n\n\n/*eslint max-len:0*/\nvar EMAIL_RE = /^<([a-zA-Z0-9.!#$%&'*+\\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*)>/;\nvar AUTOLINK_RE = /^<([a-zA-Z][a-zA-Z0-9+.\\-]{1,31}):([^<>\\x00-\\x20]*)>/;\n\n\nmodule.exports = function autolink(state, silent) {\n var tail, linkMatch, emailMatch, url, fullUrl, token,\n pos = state.pos;\n\n if (state.src.charCodeAt(pos) !== 0x3C/* < */) { return false; }\n\n tail = state.src.slice(pos);\n\n if (tail.indexOf('>') < 0) { return false; }\n\n if (AUTOLINK_RE.test(tail)) {\n linkMatch = tail.match(AUTOLINK_RE);\n\n url = linkMatch[0].slice(1, -1);\n fullUrl = state.md.normalizeLink(url);\n if (!state.md.validateLink(fullUrl)) { return false; }\n\n if (!silent) {\n token = state.push('link_open', 'a', 1);\n token.attrs = [ [ 'href', fullUrl ] ];\n token.markup = 'autolink';\n token.info = 'auto';\n\n token = state.push('text', '', 0);\n token.content = state.md.normalizeLinkText(url);\n\n token = state.push('link_close', 'a', -1);\n token.markup = 'autolink';\n token.info = 'auto';\n }\n\n state.pos += linkMatch[0].length;\n return true;\n }\n\n if (EMAIL_RE.test(tail)) {\n emailMatch = tail.match(EMAIL_RE);\n\n url = emailMatch[0].slice(1, -1);\n fullUrl = state.md.normalizeLink('mailto:' + url);\n if (!state.md.validateLink(fullUrl)) { return false; }\n\n if (!silent) {\n token = state.push('link_open', 'a', 1);\n token.attrs = [ [ 'href', fullUrl ] ];\n token.markup = 'autolink';\n token.info = 'auto';\n\n token = state.push('text', '', 0);\n token.content = state.md.normalizeLinkText(url);\n\n token = state.push('link_close', 'a', -1);\n token.markup = 'autolink';\n token.info = 'auto';\n }\n\n state.pos += emailMatch[0].length;\n return true;\n }\n\n return false;\n};\n","module.exports = function (exec) {\n try {\n return !!exec();\n } catch (e) {\n return true;\n }\n};\n","var global = require('./_global');\nvar hide = require('./_hide');\nvar has = require('./_has');\nvar SRC = require('./_uid')('src');\nvar TO_STRING = 'toString';\nvar $toString = Function[TO_STRING];\nvar TPL = ('' + $toString).split(TO_STRING);\n\nrequire('./_core').inspectSource = function (it) {\n return $toString.call(it);\n};\n\n(module.exports = function (O, key, val, safe) {\n var isFunction = typeof val == 'function';\n if (isFunction) has(val, 'name') || hide(val, 'name', key);\n if (O[key] === val) return;\n if (isFunction) has(val, SRC) || hide(val, SRC, O[key] ? '' + O[key] : TPL.join(String(key)));\n if (O === global) {\n O[key] = val;\n } else if (!safe) {\n delete O[key];\n hide(O, key, val);\n } else if (O[key]) {\n O[key] = val;\n } else {\n hide(O, key, val);\n }\n// add fake Function#toString for correct work wrapped methods / constructors with methods like LoDash isNative\n})(Function.prototype, TO_STRING, function toString() {\n return typeof this == 'function' && this[SRC] || $toString.call(this);\n});\n","// 19.1.2.2 / 15.2.3.5 Object.create(O [, Properties])\nvar anObject = require('./_an-object');\nvar dPs = require('./_object-dps');\nvar enumBugKeys = require('./_enum-bug-keys');\nvar IE_PROTO = require('./_shared-key')('IE_PROTO');\nvar Empty = function () { /* empty */ };\nvar PROTOTYPE = 'prototype';\n\n// Create object with fake `null` prototype: use iframe Object with cleared prototype\nvar createDict = function () {\n // Thrash, waste and sodomy: IE GC bug\n var iframe = require('./_dom-create')('iframe');\n var i = enumBugKeys.length;\n var lt = '<';\n var gt = '>';\n var iframeDocument;\n iframe.style.display = 'none';\n require('./_html').appendChild(iframe);\n iframe.src = 'javascript:'; // eslint-disable-line no-script-url\n // createDict = iframe.contentWindow.Object;\n // html.removeChild(iframe);\n iframeDocument = iframe.contentWindow.document;\n iframeDocument.open();\n iframeDocument.write(lt + 'script' + gt + 'document.F=Object' + lt + '/script' + gt);\n iframeDocument.close();\n createDict = iframeDocument.F;\n while (i--) delete createDict[PROTOTYPE][enumBugKeys[i]];\n return createDict();\n};\n\nmodule.exports = Object.create || function create(O, Properties) {\n var result;\n if (O !== null) {\n Empty[PROTOTYPE] = anObject(O);\n result = new Empty();\n Empty[PROTOTYPE] = null;\n // add \"__proto__\" for Object.getPrototypeOf polyfill\n result[IE_PROTO] = O;\n } else result = createDict();\n return Properties === undefined ? result : dPs(result, Properties);\n};\n","/*!\n * Vue.js v2.5.17\n * (c) 2014-2018 Evan You\n * Released under the MIT License.\n */\n/* */\n\nvar emptyObject = Object.freeze({});\n\n// these helpers produces better vm code in JS engines due to their\n// explicitness and function inlining\nfunction isUndef (v) {\n return v === undefined || v === null\n}\n\nfunction isDef (v) {\n return v !== undefined && v !== null\n}\n\nfunction isTrue (v) {\n return v === true\n}\n\nfunction isFalse (v) {\n return v === false\n}\n\n/**\n * Check if value is primitive\n */\nfunction isPrimitive (value) {\n return (\n typeof value === 'string' ||\n typeof value === 'number' ||\n // $flow-disable-line\n typeof value === 'symbol' ||\n typeof value === 'boolean'\n )\n}\n\n/**\n * Quick object check - this is primarily used to tell\n * Objects from primitive values when we know the value\n * is a JSON-compliant type.\n */\nfunction isObject (obj) {\n return obj !== null && typeof obj === 'object'\n}\n\n/**\n * Get the raw type string of a value e.g. [object Object]\n */\nvar _toString = Object.prototype.toString;\n\nfunction toRawType (value) {\n return _toString.call(value).slice(8, -1)\n}\n\n/**\n * Strict object type check. Only returns true\n * for plain JavaScript objects.\n */\nfunction isPlainObject (obj) {\n return _toString.call(obj) === '[object Object]'\n}\n\nfunction isRegExp (v) {\n return _toString.call(v) === '[object RegExp]'\n}\n\n/**\n * Check if val is a valid array index.\n */\nfunction isValidArrayIndex (val) {\n var n = parseFloat(String(val));\n return n >= 0 && Math.floor(n) === n && isFinite(val)\n}\n\n/**\n * Convert a value to a string that is actually rendered.\n */\nfunction toString (val) {\n return val == null\n ? ''\n : typeof val === 'object'\n ? JSON.stringify(val, null, 2)\n : String(val)\n}\n\n/**\n * Convert a input value to a number for persistence.\n * If the conversion fails, return original string.\n */\nfunction toNumber (val) {\n var n = parseFloat(val);\n return isNaN(n) ? val : n\n}\n\n/**\n * Make a map and return a function for checking if a key\n * is in that map.\n */\nfunction makeMap (\n str,\n expectsLowerCase\n) {\n var map = Object.create(null);\n var list = str.split(',');\n for (var i = 0; i < list.length; i++) {\n map[list[i]] = true;\n }\n return expectsLowerCase\n ? function (val) { return map[val.toLowerCase()]; }\n : function (val) { return map[val]; }\n}\n\n/**\n * Check if a tag is a built-in tag.\n */\nvar isBuiltInTag = makeMap('slot,component', true);\n\n/**\n * Check if a attribute is a reserved attribute.\n */\nvar isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');\n\n/**\n * Remove an item from an array\n */\nfunction remove (arr, item) {\n if (arr.length) {\n var index = arr.indexOf(item);\n if (index > -1) {\n return arr.splice(index, 1)\n }\n }\n}\n\n/**\n * Check whether the object has the property.\n */\nvar hasOwnProperty = Object.prototype.hasOwnProperty;\nfunction hasOwn (obj, key) {\n return hasOwnProperty.call(obj, key)\n}\n\n/**\n * Create a cached version of a pure function.\n */\nfunction cached (fn) {\n var cache = Object.create(null);\n return (function cachedFn (str) {\n var hit = cache[str];\n return hit || (cache[str] = fn(str))\n })\n}\n\n/**\n * Camelize a hyphen-delimited string.\n */\nvar camelizeRE = /-(\\w)/g;\nvar camelize = cached(function (str) {\n return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })\n});\n\n/**\n * Capitalize a string.\n */\nvar capitalize = cached(function (str) {\n return str.charAt(0).toUpperCase() + str.slice(1)\n});\n\n/**\n * Hyphenate a camelCase string.\n */\nvar hyphenateRE = /\\B([A-Z])/g;\nvar hyphenate = cached(function (str) {\n return str.replace(hyphenateRE, '-$1').toLowerCase()\n});\n\n/**\n * Simple bind polyfill for environments that do not support it... e.g.\n * PhantomJS 1.x. Technically we don't need this anymore since native bind is\n * now more performant in most browsers, but removing it would be breaking for\n * code that was able to run in PhantomJS 1.x, so this must be kept for\n * backwards compatibility.\n */\n\n/* istanbul ignore next */\nfunction polyfillBind (fn, ctx) {\n function boundFn (a) {\n var l = arguments.length;\n return l\n ? l > 1\n ? fn.apply(ctx, arguments)\n : fn.call(ctx, a)\n : fn.call(ctx)\n }\n\n boundFn._length = fn.length;\n return boundFn\n}\n\nfunction nativeBind (fn, ctx) {\n return fn.bind(ctx)\n}\n\nvar bind = Function.prototype.bind\n ? nativeBind\n : polyfillBind;\n\n/**\n * Convert an Array-like object to a real Array.\n */\nfunction toArray (list, start) {\n start = start || 0;\n var i = list.length - start;\n var ret = new Array(i);\n while (i--) {\n ret[i] = list[i + start];\n }\n return ret\n}\n\n/**\n * Mix properties into target object.\n */\nfunction extend (to, _from) {\n for (var key in _from) {\n to[key] = _from[key];\n }\n return to\n}\n\n/**\n * Merge an Array of Objects into a single Object.\n */\nfunction toObject (arr) {\n var res = {};\n for (var i = 0; i < arr.length; i++) {\n if (arr[i]) {\n extend(res, arr[i]);\n }\n }\n return res\n}\n\n/**\n * Perform no operation.\n * Stubbing args to make Flow happy without leaving useless transpiled code\n * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/)\n */\nfunction noop (a, b, c) {}\n\n/**\n * Always return false.\n */\nvar no = function (a, b, c) { return false; };\n\n/**\n * Return same value\n */\nvar identity = function (_) { return _; };\n\n/**\n * Generate a static keys string from compiler modules.\n */\n\n\n/**\n * Check if two values are loosely equal - that is,\n * if they are plain objects, do they have the same shape?\n */\nfunction looseEqual (a, b) {\n if (a === b) { return true }\n var isObjectA = isObject(a);\n var isObjectB = isObject(b);\n if (isObjectA && isObjectB) {\n try {\n var isArrayA = Array.isArray(a);\n var isArrayB = Array.isArray(b);\n if (isArrayA && isArrayB) {\n return a.length === b.length && a.every(function (e, i) {\n return looseEqual(e, b[i])\n })\n } else if (!isArrayA && !isArrayB) {\n var keysA = Object.keys(a);\n var keysB = Object.keys(b);\n return keysA.length === keysB.length && keysA.every(function (key) {\n return looseEqual(a[key], b[key])\n })\n } else {\n /* istanbul ignore next */\n return false\n }\n } catch (e) {\n /* istanbul ignore next */\n return false\n }\n } else if (!isObjectA && !isObjectB) {\n return String(a) === String(b)\n } else {\n return false\n }\n}\n\nfunction looseIndexOf (arr, val) {\n for (var i = 0; i < arr.length; i++) {\n if (looseEqual(arr[i], val)) { return i }\n }\n return -1\n}\n\n/**\n * Ensure a function is called only once.\n */\nfunction once (fn) {\n var called = false;\n return function () {\n if (!called) {\n called = true;\n fn.apply(this, arguments);\n }\n }\n}\n\nvar SSR_ATTR = 'data-server-rendered';\n\nvar ASSET_TYPES = [\n 'component',\n 'directive',\n 'filter'\n];\n\nvar LIFECYCLE_HOOKS = [\n 'beforeCreate',\n 'created',\n 'beforeMount',\n 'mounted',\n 'beforeUpdate',\n 'updated',\n 'beforeDestroy',\n 'destroyed',\n 'activated',\n 'deactivated',\n 'errorCaptured'\n];\n\n/* */\n\nvar config = ({\n /**\n * Option merge strategies (used in core/util/options)\n */\n // $flow-disable-line\n optionMergeStrategies: Object.create(null),\n\n /**\n * Whether to suppress warnings.\n */\n silent: false,\n\n /**\n * Show production mode tip message on boot?\n */\n productionTip: process.env.NODE_ENV !== 'production',\n\n /**\n * Whether to enable devtools\n */\n devtools: process.env.NODE_ENV !== 'production',\n\n /**\n * Whether to record perf\n */\n performance: false,\n\n /**\n * Error handler for watcher errors\n */\n errorHandler: null,\n\n /**\n * Warn handler for watcher warns\n */\n warnHandler: null,\n\n /**\n * Ignore certain custom elements\n */\n ignoredElements: [],\n\n /**\n * Custom user key aliases for v-on\n */\n // $flow-disable-line\n keyCodes: Object.create(null),\n\n /**\n * Check if a tag is reserved so that it cannot be registered as a\n * component. This is platform-dependent and may be overwritten.\n */\n isReservedTag: no,\n\n /**\n * Check if an attribute is reserved so that it cannot be used as a component\n * prop. This is platform-dependent and may be overwritten.\n */\n isReservedAttr: no,\n\n /**\n * Check if a tag is an unknown element.\n * Platform-dependent.\n */\n isUnknownElement: no,\n\n /**\n * Get the namespace of an element\n */\n getTagNamespace: noop,\n\n /**\n * Parse the real tag name for the specific platform.\n */\n parsePlatformTagName: identity,\n\n /**\n * Check if an attribute must be bound using property, e.g. value\n * Platform-dependent.\n */\n mustUseProp: no,\n\n /**\n * Exposed for legacy reasons\n */\n _lifecycleHooks: LIFECYCLE_HOOKS\n})\n\n/* */\n\n/**\n * Check if a string starts with $ or _\n */\nfunction isReserved (str) {\n var c = (str + '').charCodeAt(0);\n return c === 0x24 || c === 0x5F\n}\n\n/**\n * Define a property.\n */\nfunction def (obj, key, val, enumerable) {\n Object.defineProperty(obj, key, {\n value: val,\n enumerable: !!enumerable,\n writable: true,\n configurable: true\n });\n}\n\n/**\n * Parse simple path.\n */\nvar bailRE = /[^\\w.$]/;\nfunction parsePath (path) {\n if (bailRE.test(path)) {\n return\n }\n var segments = path.split('.');\n return function (obj) {\n for (var i = 0; i < segments.length; i++) {\n if (!obj) { return }\n obj = obj[segments[i]];\n }\n return obj\n }\n}\n\n/* */\n\n// can we use __proto__?\nvar hasProto = '__proto__' in {};\n\n// Browser environment sniffing\nvar inBrowser = typeof window !== 'undefined';\nvar inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;\nvar weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();\nvar UA = inBrowser && window.navigator.userAgent.toLowerCase();\nvar isIE = UA && /msie|trident/.test(UA);\nvar isIE9 = UA && UA.indexOf('msie 9.0') > 0;\nvar isEdge = UA && UA.indexOf('edge/') > 0;\nvar isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');\nvar isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');\nvar isChrome = UA && /chrome\\/\\d+/.test(UA) && !isEdge;\n\n// Firefox has a \"watch\" function on Object.prototype...\nvar nativeWatch = ({}).watch;\n\nvar supportsPassive = false;\nif (inBrowser) {\n try {\n var opts = {};\n Object.defineProperty(opts, 'passive', ({\n get: function get () {\n /* istanbul ignore next */\n supportsPassive = true;\n }\n })); // https://github.com/facebook/flow/issues/285\n window.addEventListener('test-passive', null, opts);\n } catch (e) {}\n}\n\n// this needs to be lazy-evaled because vue may be required before\n// vue-server-renderer can set VUE_ENV\nvar _isServer;\nvar isServerRendering = function () {\n if (_isServer === undefined) {\n /* istanbul ignore if */\n if (!inBrowser && !inWeex && typeof global !== 'undefined') {\n // detect presence of vue-server-renderer and avoid\n // Webpack shimming the process\n _isServer = global['process'].env.VUE_ENV === 'server';\n } else {\n _isServer = false;\n }\n }\n return _isServer\n};\n\n// detect devtools\nvar devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;\n\n/* istanbul ignore next */\nfunction isNative (Ctor) {\n return typeof Ctor === 'function' && /native code/.test(Ctor.toString())\n}\n\nvar hasSymbol =\n typeof Symbol !== 'undefined' && isNative(Symbol) &&\n typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);\n\nvar _Set;\n/* istanbul ignore if */ // $flow-disable-line\nif (typeof Set !== 'undefined' && isNative(Set)) {\n // use native Set when available.\n _Set = Set;\n} else {\n // a non-standard Set polyfill that only works with primitive keys.\n _Set = (function () {\n function Set () {\n this.set = Object.create(null);\n }\n Set.prototype.has = function has (key) {\n return this.set[key] === true\n };\n Set.prototype.add = function add (key) {\n this.set[key] = true;\n };\n Set.prototype.clear = function clear () {\n this.set = Object.create(null);\n };\n\n return Set;\n }());\n}\n\n/* */\n\nvar warn = noop;\nvar tip = noop;\nvar generateComponentTrace = (noop); // work around flow check\nvar formatComponentName = (noop);\n\nif (process.env.NODE_ENV !== 'production') {\n var hasConsole = typeof console !== 'undefined';\n var classifyRE = /(?:^|[-_])(\\w)/g;\n var classify = function (str) { return str\n .replace(classifyRE, function (c) { return c.toUpperCase(); })\n .replace(/[-_]/g, ''); };\n\n warn = function (msg, vm) {\n var trace = vm ? generateComponentTrace(vm) : '';\n\n if (config.warnHandler) {\n config.warnHandler.call(null, msg, vm, trace);\n } else if (hasConsole && (!config.silent)) {\n console.error((\"[Vue warn]: \" + msg + trace));\n }\n };\n\n tip = function (msg, vm) {\n if (hasConsole && (!config.silent)) {\n console.warn(\"[Vue tip]: \" + msg + (\n vm ? generateComponentTrace(vm) : ''\n ));\n }\n };\n\n formatComponentName = function (vm, includeFile) {\n if (vm.$root === vm) {\n return ''\n }\n var options = typeof vm === 'function' && vm.cid != null\n ? vm.options\n : vm._isVue\n ? vm.$options || vm.constructor.options\n : vm || {};\n var name = options.name || options._componentTag;\n var file = options.__file;\n if (!name && file) {\n var match = file.match(/([^/\\\\]+)\\.vue$/);\n name = match && match[1];\n }\n\n return (\n (name ? (\"<\" + (classify(name)) + \">\") : \"\") +\n (file && includeFile !== false ? (\" at \" + file) : '')\n )\n };\n\n var repeat = function (str, n) {\n var res = '';\n while (n) {\n if (n % 2 === 1) { res += str; }\n if (n > 1) { str += str; }\n n >>= 1;\n }\n return res\n };\n\n generateComponentTrace = function (vm) {\n if (vm._isVue && vm.$parent) {\n var tree = [];\n var currentRecursiveSequence = 0;\n while (vm) {\n if (tree.length > 0) {\n var last = tree[tree.length - 1];\n if (last.constructor === vm.constructor) {\n currentRecursiveSequence++;\n vm = vm.$parent;\n continue\n } else if (currentRecursiveSequence > 0) {\n tree[tree.length - 1] = [last, currentRecursiveSequence];\n currentRecursiveSequence = 0;\n }\n }\n tree.push(vm);\n vm = vm.$parent;\n }\n return '\\n\\nfound in\\n\\n' + tree\n .map(function (vm, i) { return (\"\" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm)\n ? ((formatComponentName(vm[0])) + \"... (\" + (vm[1]) + \" recursive calls)\")\n : formatComponentName(vm))); })\n .join('\\n')\n } else {\n return (\"\\n\\n(found in \" + (formatComponentName(vm)) + \")\")\n }\n };\n}\n\n/* */\n\n\nvar uid = 0;\n\n/**\n * A dep is an observable that can have multiple\n * directives subscribing to it.\n */\nvar Dep = function Dep () {\n this.id = uid++;\n this.subs = [];\n};\n\nDep.prototype.addSub = function addSub (sub) {\n this.subs.push(sub);\n};\n\nDep.prototype.removeSub = function removeSub (sub) {\n remove(this.subs, sub);\n};\n\nDep.prototype.depend = function depend () {\n if (Dep.target) {\n Dep.target.addDep(this);\n }\n};\n\nDep.prototype.notify = function notify () {\n // stabilize the subscriber list first\n var subs = this.subs.slice();\n for (var i = 0, l = subs.length; i < l; i++) {\n subs[i].update();\n }\n};\n\n// the current target watcher being evaluated.\n// this is globally unique because there could be only one\n// watcher being evaluated at any time.\nDep.target = null;\nvar targetStack = [];\n\nfunction pushTarget (_target) {\n if (Dep.target) { targetStack.push(Dep.target); }\n Dep.target = _target;\n}\n\nfunction popTarget () {\n Dep.target = targetStack.pop();\n}\n\n/* */\n\nvar VNode = function VNode (\n tag,\n data,\n children,\n text,\n elm,\n context,\n componentOptions,\n asyncFactory\n) {\n this.tag = tag;\n this.data = data;\n this.children = children;\n this.text = text;\n this.elm = elm;\n this.ns = undefined;\n this.context = context;\n this.fnContext = undefined;\n this.fnOptions = undefined;\n this.fnScopeId = undefined;\n this.key = data && data.key;\n this.componentOptions = componentOptions;\n this.componentInstance = undefined;\n this.parent = undefined;\n this.raw = false;\n this.isStatic = false;\n this.isRootInsert = true;\n this.isComment = false;\n this.isCloned = false;\n this.isOnce = false;\n this.asyncFactory = asyncFactory;\n this.asyncMeta = undefined;\n this.isAsyncPlaceholder = false;\n};\n\nvar prototypeAccessors = { child: { configurable: true } };\n\n// DEPRECATED: alias for componentInstance for backwards compat.\n/* istanbul ignore next */\nprototypeAccessors.child.get = function () {\n return this.componentInstance\n};\n\nObject.defineProperties( VNode.prototype, prototypeAccessors );\n\nvar createEmptyVNode = function (text) {\n if ( text === void 0 ) text = '';\n\n var node = new VNode();\n node.text = text;\n node.isComment = true;\n return node\n};\n\nfunction createTextVNode (val) {\n return new VNode(undefined, undefined, undefined, String(val))\n}\n\n// optimized shallow clone\n// used for static nodes and slot nodes because they may be reused across\n// multiple renders, cloning them avoids errors when DOM manipulations rely\n// on their elm reference.\nfunction cloneVNode (vnode) {\n var cloned = new VNode(\n vnode.tag,\n vnode.data,\n vnode.children,\n vnode.text,\n vnode.elm,\n vnode.context,\n vnode.componentOptions,\n vnode.asyncFactory\n );\n cloned.ns = vnode.ns;\n cloned.isStatic = vnode.isStatic;\n cloned.key = vnode.key;\n cloned.isComment = vnode.isComment;\n cloned.fnContext = vnode.fnContext;\n cloned.fnOptions = vnode.fnOptions;\n cloned.fnScopeId = vnode.fnScopeId;\n cloned.isCloned = true;\n return cloned\n}\n\n/*\n * not type checking this file because flow doesn't play well with\n * dynamically accessing methods on Array prototype\n */\n\nvar arrayProto = Array.prototype;\nvar arrayMethods = Object.create(arrayProto);\n\nvar methodsToPatch = [\n 'push',\n 'pop',\n 'shift',\n 'unshift',\n 'splice',\n 'sort',\n 'reverse'\n];\n\n/**\n * Intercept mutating methods and emit events\n */\nmethodsToPatch.forEach(function (method) {\n // cache original method\n var original = arrayProto[method];\n def(arrayMethods, method, function mutator () {\n var args = [], len = arguments.length;\n while ( len-- ) args[ len ] = arguments[ len ];\n\n var result = original.apply(this, args);\n var ob = this.__ob__;\n var inserted;\n switch (method) {\n case 'push':\n case 'unshift':\n inserted = args;\n break\n case 'splice':\n inserted = args.slice(2);\n break\n }\n if (inserted) { ob.observeArray(inserted); }\n // notify change\n ob.dep.notify();\n return result\n });\n});\n\n/* */\n\nvar arrayKeys = Object.getOwnPropertyNames(arrayMethods);\n\n/**\n * In some cases we may want to disable observation inside a component's\n * update computation.\n */\nvar shouldObserve = true;\n\nfunction toggleObserving (value) {\n shouldObserve = value;\n}\n\n/**\n * Observer class that is attached to each observed\n * object. Once attached, the observer converts the target\n * object's property keys into getter/setters that\n * collect dependencies and dispatch updates.\n */\nvar Observer = function Observer (value) {\n this.value = value;\n this.dep = new Dep();\n this.vmCount = 0;\n def(value, '__ob__', this);\n if (Array.isArray(value)) {\n var augment = hasProto\n ? protoAugment\n : copyAugment;\n augment(value, arrayMethods, arrayKeys);\n this.observeArray(value);\n } else {\n this.walk(value);\n }\n};\n\n/**\n * Walk through each property and convert them into\n * getter/setters. This method should only be called when\n * value type is Object.\n */\nObserver.prototype.walk = function walk (obj) {\n var keys = Object.keys(obj);\n for (var i = 0; i < keys.length; i++) {\n defineReactive(obj, keys[i]);\n }\n};\n\n/**\n * Observe a list of Array items.\n */\nObserver.prototype.observeArray = function observeArray (items) {\n for (var i = 0, l = items.length; i < l; i++) {\n observe(items[i]);\n }\n};\n\n// helpers\n\n/**\n * Augment an target Object or Array by intercepting\n * the prototype chain using __proto__\n */\nfunction protoAugment (target, src, keys) {\n /* eslint-disable no-proto */\n target.__proto__ = src;\n /* eslint-enable no-proto */\n}\n\n/**\n * Augment an target Object or Array by defining\n * hidden properties.\n */\n/* istanbul ignore next */\nfunction copyAugment (target, src, keys) {\n for (var i = 0, l = keys.length; i < l; i++) {\n var key = keys[i];\n def(target, key, src[key]);\n }\n}\n\n/**\n * Attempt to create an observer instance for a value,\n * returns the new observer if successfully observed,\n * or the existing observer if the value already has one.\n */\nfunction observe (value, asRootData) {\n if (!isObject(value) || value instanceof VNode) {\n return\n }\n var ob;\n if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {\n ob = value.__ob__;\n } else if (\n shouldObserve &&\n !isServerRendering() &&\n (Array.isArray(value) || isPlainObject(value)) &&\n Object.isExtensible(value) &&\n !value._isVue\n ) {\n ob = new Observer(value);\n }\n if (asRootData && ob) {\n ob.vmCount++;\n }\n return ob\n}\n\n/**\n * Define a reactive property on an Object.\n */\nfunction defineReactive (\n obj,\n key,\n val,\n customSetter,\n shallow\n) {\n var dep = new Dep();\n\n var property = Object.getOwnPropertyDescriptor(obj, key);\n if (property && property.configurable === false) {\n return\n }\n\n // cater for pre-defined getter/setters\n var getter = property && property.get;\n if (!getter && arguments.length === 2) {\n val = obj[key];\n }\n var setter = property && property.set;\n\n var childOb = !shallow && observe(val);\n Object.defineProperty(obj, key, {\n enumerable: true,\n configurable: true,\n get: function reactiveGetter () {\n var value = getter ? getter.call(obj) : val;\n if (Dep.target) {\n dep.depend();\n if (childOb) {\n childOb.dep.depend();\n if (Array.isArray(value)) {\n dependArray(value);\n }\n }\n }\n return value\n },\n set: function reactiveSetter (newVal) {\n var value = getter ? getter.call(obj) : val;\n /* eslint-disable no-self-compare */\n if (newVal === value || (newVal !== newVal && value !== value)) {\n return\n }\n /* eslint-enable no-self-compare */\n if (process.env.NODE_ENV !== 'production' && customSetter) {\n customSetter();\n }\n if (setter) {\n setter.call(obj, newVal);\n } else {\n val = newVal;\n }\n childOb = !shallow && observe(newVal);\n dep.notify();\n }\n });\n}\n\n/**\n * Set a property on an object. Adds the new property and\n * triggers change notification if the property doesn't\n * already exist.\n */\nfunction set (target, key, val) {\n if (process.env.NODE_ENV !== 'production' &&\n (isUndef(target) || isPrimitive(target))\n ) {\n warn((\"Cannot set reactive property on undefined, null, or primitive value: \" + ((target))));\n }\n if (Array.isArray(target) && isValidArrayIndex(key)) {\n target.length = Math.max(target.length, key);\n target.splice(key, 1, val);\n return val\n }\n if (key in target && !(key in Object.prototype)) {\n target[key] = val;\n return val\n }\n var ob = (target).__ob__;\n if (target._isVue || (ob && ob.vmCount)) {\n process.env.NODE_ENV !== 'production' && warn(\n 'Avoid adding reactive properties to a Vue instance or its root $data ' +\n 'at runtime - declare it upfront in the data option.'\n );\n return val\n }\n if (!ob) {\n target[key] = val;\n return val\n }\n defineReactive(ob.value, key, val);\n ob.dep.notify();\n return val\n}\n\n/**\n * Delete a property and trigger change if necessary.\n */\nfunction del (target, key) {\n if (process.env.NODE_ENV !== 'production' &&\n (isUndef(target) || isPrimitive(target))\n ) {\n warn((\"Cannot delete reactive property on undefined, null, or primitive value: \" + ((target))));\n }\n if (Array.isArray(target) && isValidArrayIndex(key)) {\n target.splice(key, 1);\n return\n }\n var ob = (target).__ob__;\n if (target._isVue || (ob && ob.vmCount)) {\n process.env.NODE_ENV !== 'production' && warn(\n 'Avoid deleting properties on a Vue instance or its root $data ' +\n '- just set it to null.'\n );\n return\n }\n if (!hasOwn(target, key)) {\n return\n }\n delete target[key];\n if (!ob) {\n return\n }\n ob.dep.notify();\n}\n\n/**\n * Collect dependencies on array elements when the array is touched, since\n * we cannot intercept array element access like property getters.\n */\nfunction dependArray (value) {\n for (var e = (void 0), i = 0, l = value.length; i < l; i++) {\n e = value[i];\n e && e.__ob__ && e.__ob__.dep.depend();\n if (Array.isArray(e)) {\n dependArray(e);\n }\n }\n}\n\n/* */\n\n/**\n * Option overwriting strategies are functions that handle\n * how to merge a parent option value and a child option\n * value into the final value.\n */\nvar strats = config.optionMergeStrategies;\n\n/**\n * Options with restrictions\n */\nif (process.env.NODE_ENV !== 'production') {\n strats.el = strats.propsData = function (parent, child, vm, key) {\n if (!vm) {\n warn(\n \"option \\\"\" + key + \"\\\" can only be used during instance \" +\n 'creation with the `new` keyword.'\n );\n }\n return defaultStrat(parent, child)\n };\n}\n\n/**\n * Helper that recursively merges two data objects together.\n */\nfunction mergeData (to, from) {\n if (!from) { return to }\n var key, toVal, fromVal;\n var keys = Object.keys(from);\n for (var i = 0; i < keys.length; i++) {\n key = keys[i];\n toVal = to[key];\n fromVal = from[key];\n if (!hasOwn(to, key)) {\n set(to, key, fromVal);\n } else if (isPlainObject(toVal) && isPlainObject(fromVal)) {\n mergeData(toVal, fromVal);\n }\n }\n return to\n}\n\n/**\n * Data\n */\nfunction mergeDataOrFn (\n parentVal,\n childVal,\n vm\n) {\n if (!vm) {\n // in a Vue.extend merge, both should be functions\n if (!childVal) {\n return parentVal\n }\n if (!parentVal) {\n return childVal\n }\n // when parentVal & childVal are both present,\n // we need to return a function that returns the\n // merged result of both functions... no need to\n // check if parentVal is a function here because\n // it has to be a function to pass previous merges.\n return function mergedDataFn () {\n return mergeData(\n typeof childVal === 'function' ? childVal.call(this, this) : childVal,\n typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal\n )\n }\n } else {\n return function mergedInstanceDataFn () {\n // instance merge\n var instanceData = typeof childVal === 'function'\n ? childVal.call(vm, vm)\n : childVal;\n var defaultData = typeof parentVal === 'function'\n ? parentVal.call(vm, vm)\n : parentVal;\n if (instanceData) {\n return mergeData(instanceData, defaultData)\n } else {\n return defaultData\n }\n }\n }\n}\n\nstrats.data = function (\n parentVal,\n childVal,\n vm\n) {\n if (!vm) {\n if (childVal && typeof childVal !== 'function') {\n process.env.NODE_ENV !== 'production' && warn(\n 'The \"data\" option should be a function ' +\n 'that returns a per-instance value in component ' +\n 'definitions.',\n vm\n );\n\n return parentVal\n }\n return mergeDataOrFn(parentVal, childVal)\n }\n\n return mergeDataOrFn(parentVal, childVal, vm)\n};\n\n/**\n * Hooks and props are merged as arrays.\n */\nfunction mergeHook (\n parentVal,\n childVal\n) {\n return childVal\n ? parentVal\n ? parentVal.concat(childVal)\n : Array.isArray(childVal)\n ? childVal\n : [childVal]\n : parentVal\n}\n\nLIFECYCLE_HOOKS.forEach(function (hook) {\n strats[hook] = mergeHook;\n});\n\n/**\n * Assets\n *\n * When a vm is present (instance creation), we need to do\n * a three-way merge between constructor options, instance\n * options and parent options.\n */\nfunction mergeAssets (\n parentVal,\n childVal,\n vm,\n key\n) {\n var res = Object.create(parentVal || null);\n if (childVal) {\n process.env.NODE_ENV !== 'production' && assertObjectType(key, childVal, vm);\n return extend(res, childVal)\n } else {\n return res\n }\n}\n\nASSET_TYPES.forEach(function (type) {\n strats[type + 's'] = mergeAssets;\n});\n\n/**\n * Watchers.\n *\n * Watchers hashes should not overwrite one\n * another, so we merge them as arrays.\n */\nstrats.watch = function (\n parentVal,\n childVal,\n vm,\n key\n) {\n // work around Firefox's Object.prototype.watch...\n if (parentVal === nativeWatch) { parentVal = undefined; }\n if (childVal === nativeWatch) { childVal = undefined; }\n /* istanbul ignore if */\n if (!childVal) { return Object.create(parentVal || null) }\n if (process.env.NODE_ENV !== 'production') {\n assertObjectType(key, childVal, vm);\n }\n if (!parentVal) { return childVal }\n var ret = {};\n extend(ret, parentVal);\n for (var key$1 in childVal) {\n var parent = ret[key$1];\n var child = childVal[key$1];\n if (parent && !Array.isArray(parent)) {\n parent = [parent];\n }\n ret[key$1] = parent\n ? parent.concat(child)\n : Array.isArray(child) ? child : [child];\n }\n return ret\n};\n\n/**\n * Other object hashes.\n */\nstrats.props =\nstrats.methods =\nstrats.inject =\nstrats.computed = function (\n parentVal,\n childVal,\n vm,\n key\n) {\n if (childVal && process.env.NODE_ENV !== 'production') {\n assertObjectType(key, childVal, vm);\n }\n if (!parentVal) { return childVal }\n var ret = Object.create(null);\n extend(ret, parentVal);\n if (childVal) { extend(ret, childVal); }\n return ret\n};\nstrats.provide = mergeDataOrFn;\n\n/**\n * Default strategy.\n */\nvar defaultStrat = function (parentVal, childVal) {\n return childVal === undefined\n ? parentVal\n : childVal\n};\n\n/**\n * Validate component names\n */\nfunction checkComponents (options) {\n for (var key in options.components) {\n validateComponentName(key);\n }\n}\n\nfunction validateComponentName (name) {\n if (!/^[a-zA-Z][\\w-]*$/.test(name)) {\n warn(\n 'Invalid component name: \"' + name + '\". Component names ' +\n 'can only contain alphanumeric characters and the hyphen, ' +\n 'and must start with a letter.'\n );\n }\n if (isBuiltInTag(name) || config.isReservedTag(name)) {\n warn(\n 'Do not use built-in or reserved HTML elements as component ' +\n 'id: ' + name\n );\n }\n}\n\n/**\n * Ensure all props option syntax are normalized into the\n * Object-based format.\n */\nfunction normalizeProps (options, vm) {\n var props = options.props;\n if (!props) { return }\n var res = {};\n var i, val, name;\n if (Array.isArray(props)) {\n i = props.length;\n while (i--) {\n val = props[i];\n if (typeof val === 'string') {\n name = camelize(val);\n res[name] = { type: null };\n } else if (process.env.NODE_ENV !== 'production') {\n warn('props must be strings when using array syntax.');\n }\n }\n } else if (isPlainObject(props)) {\n for (var key in props) {\n val = props[key];\n name = camelize(key);\n res[name] = isPlainObject(val)\n ? val\n : { type: val };\n }\n } else if (process.env.NODE_ENV !== 'production') {\n warn(\n \"Invalid value for option \\\"props\\\": expected an Array or an Object, \" +\n \"but got \" + (toRawType(props)) + \".\",\n vm\n );\n }\n options.props = res;\n}\n\n/**\n * Normalize all injections into Object-based format\n */\nfunction normalizeInject (options, vm) {\n var inject = options.inject;\n if (!inject) { return }\n var normalized = options.inject = {};\n if (Array.isArray(inject)) {\n for (var i = 0; i < inject.length; i++) {\n normalized[inject[i]] = { from: inject[i] };\n }\n } else if (isPlainObject(inject)) {\n for (var key in inject) {\n var val = inject[key];\n normalized[key] = isPlainObject(val)\n ? extend({ from: key }, val)\n : { from: val };\n }\n } else if (process.env.NODE_ENV !== 'production') {\n warn(\n \"Invalid value for option \\\"inject\\\": expected an Array or an Object, \" +\n \"but got \" + (toRawType(inject)) + \".\",\n vm\n );\n }\n}\n\n/**\n * Normalize raw function directives into object format.\n */\nfunction normalizeDirectives (options) {\n var dirs = options.directives;\n if (dirs) {\n for (var key in dirs) {\n var def = dirs[key];\n if (typeof def === 'function') {\n dirs[key] = { bind: def, update: def };\n }\n }\n }\n}\n\nfunction assertObjectType (name, value, vm) {\n if (!isPlainObject(value)) {\n warn(\n \"Invalid value for option \\\"\" + name + \"\\\": expected an Object, \" +\n \"but got \" + (toRawType(value)) + \".\",\n vm\n );\n }\n}\n\n/**\n * Merge two option objects into a new one.\n * Core utility used in both instantiation and inheritance.\n */\nfunction mergeOptions (\n parent,\n child,\n vm\n) {\n if (process.env.NODE_ENV !== 'production') {\n checkComponents(child);\n }\n\n if (typeof child === 'function') {\n child = child.options;\n }\n\n normalizeProps(child, vm);\n normalizeInject(child, vm);\n normalizeDirectives(child);\n var extendsFrom = child.extends;\n if (extendsFrom) {\n parent = mergeOptions(parent, extendsFrom, vm);\n }\n if (child.mixins) {\n for (var i = 0, l = child.mixins.length; i < l; i++) {\n parent = mergeOptions(parent, child.mixins[i], vm);\n }\n }\n var options = {};\n var key;\n for (key in parent) {\n mergeField(key);\n }\n for (key in child) {\n if (!hasOwn(parent, key)) {\n mergeField(key);\n }\n }\n function mergeField (key) {\n var strat = strats[key] || defaultStrat;\n options[key] = strat(parent[key], child[key], vm, key);\n }\n return options\n}\n\n/**\n * Resolve an asset.\n * This function is used because child instances need access\n * to assets defined in its ancestor chain.\n */\nfunction resolveAsset (\n options,\n type,\n id,\n warnMissing\n) {\n /* istanbul ignore if */\n if (typeof id !== 'string') {\n return\n }\n var assets = options[type];\n // check local registration variations first\n if (hasOwn(assets, id)) { return assets[id] }\n var camelizedId = camelize(id);\n if (hasOwn(assets, camelizedId)) { return assets[camelizedId] }\n var PascalCaseId = capitalize(camelizedId);\n if (hasOwn(assets, PascalCaseId)) { return assets[PascalCaseId] }\n // fallback to prototype chain\n var res = assets[id] || assets[camelizedId] || assets[PascalCaseId];\n if (process.env.NODE_ENV !== 'production' && warnMissing && !res) {\n warn(\n 'Failed to resolve ' + type.slice(0, -1) + ': ' + id,\n options\n );\n }\n return res\n}\n\n/* */\n\nfunction validateProp (\n key,\n propOptions,\n propsData,\n vm\n) {\n var prop = propOptions[key];\n var absent = !hasOwn(propsData, key);\n var value = propsData[key];\n // boolean casting\n var booleanIndex = getTypeIndex(Boolean, prop.type);\n if (booleanIndex > -1) {\n if (absent && !hasOwn(prop, 'default')) {\n value = false;\n } else if (value === '' || value === hyphenate(key)) {\n // only cast empty string / same name to boolean if\n // boolean has higher priority\n var stringIndex = getTypeIndex(String, prop.type);\n if (stringIndex < 0 || booleanIndex < stringIndex) {\n value = true;\n }\n }\n }\n // check default value\n if (value === undefined) {\n value = getPropDefaultValue(vm, prop, key);\n // since the default value is a fresh copy,\n // make sure to observe it.\n var prevShouldObserve = shouldObserve;\n toggleObserving(true);\n observe(value);\n toggleObserving(prevShouldObserve);\n }\n if (\n process.env.NODE_ENV !== 'production' &&\n // skip validation for weex recycle-list child component props\n !(false && isObject(value) && ('@binding' in value))\n ) {\n assertProp(prop, key, value, vm, absent);\n }\n return value\n}\n\n/**\n * Get the default value of a prop.\n */\nfunction getPropDefaultValue (vm, prop, key) {\n // no default, return undefined\n if (!hasOwn(prop, 'default')) {\n return undefined\n }\n var def = prop.default;\n // warn against non-factory defaults for Object & Array\n if (process.env.NODE_ENV !== 'production' && isObject(def)) {\n warn(\n 'Invalid default value for prop \"' + key + '\": ' +\n 'Props with type Object/Array must use a factory function ' +\n 'to return the default value.',\n vm\n );\n }\n // the raw prop value was also undefined from previous render,\n // return previous default value to avoid unnecessary watcher trigger\n if (vm && vm.$options.propsData &&\n vm.$options.propsData[key] === undefined &&\n vm._props[key] !== undefined\n ) {\n return vm._props[key]\n }\n // call factory function for non-Function types\n // a value is Function if its prototype is function even across different execution context\n return typeof def === 'function' && getType(prop.type) !== 'Function'\n ? def.call(vm)\n : def\n}\n\n/**\n * Assert whether a prop is valid.\n */\nfunction assertProp (\n prop,\n name,\n value,\n vm,\n absent\n) {\n if (prop.required && absent) {\n warn(\n 'Missing required prop: \"' + name + '\"',\n vm\n );\n return\n }\n if (value == null && !prop.required) {\n return\n }\n var type = prop.type;\n var valid = !type || type === true;\n var expectedTypes = [];\n if (type) {\n if (!Array.isArray(type)) {\n type = [type];\n }\n for (var i = 0; i < type.length && !valid; i++) {\n var assertedType = assertType(value, type[i]);\n expectedTypes.push(assertedType.expectedType || '');\n valid = assertedType.valid;\n }\n }\n if (!valid) {\n warn(\n \"Invalid prop: type check failed for prop \\\"\" + name + \"\\\".\" +\n \" Expected \" + (expectedTypes.map(capitalize).join(', ')) +\n \", got \" + (toRawType(value)) + \".\",\n vm\n );\n return\n }\n var validator = prop.validator;\n if (validator) {\n if (!validator(value)) {\n warn(\n 'Invalid prop: custom validator check failed for prop \"' + name + '\".',\n vm\n );\n }\n }\n}\n\nvar simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/;\n\nfunction assertType (value, type) {\n var valid;\n var expectedType = getType(type);\n if (simpleCheckRE.test(expectedType)) {\n var t = typeof value;\n valid = t === expectedType.toLowerCase();\n // for primitive wrapper objects\n if (!valid && t === 'object') {\n valid = value instanceof type;\n }\n } else if (expectedType === 'Object') {\n valid = isPlainObject(value);\n } else if (expectedType === 'Array') {\n valid = Array.isArray(value);\n } else {\n valid = value instanceof type;\n }\n return {\n valid: valid,\n expectedType: expectedType\n }\n}\n\n/**\n * Use function string name to check built-in types,\n * because a simple equality check will fail when running\n * across different vms / iframes.\n */\nfunction getType (fn) {\n var match = fn && fn.toString().match(/^\\s*function (\\w+)/);\n return match ? match[1] : ''\n}\n\nfunction isSameType (a, b) {\n return getType(a) === getType(b)\n}\n\nfunction getTypeIndex (type, expectedTypes) {\n if (!Array.isArray(expectedTypes)) {\n return isSameType(expectedTypes, type) ? 0 : -1\n }\n for (var i = 0, len = expectedTypes.length; i < len; i++) {\n if (isSameType(expectedTypes[i], type)) {\n return i\n }\n }\n return -1\n}\n\n/* */\n\nfunction handleError (err, vm, info) {\n if (vm) {\n var cur = vm;\n while ((cur = cur.$parent)) {\n var hooks = cur.$options.errorCaptured;\n if (hooks) {\n for (var i = 0; i < hooks.length; i++) {\n try {\n var capture = hooks[i].call(cur, err, vm, info) === false;\n if (capture) { return }\n } catch (e) {\n globalHandleError(e, cur, 'errorCaptured hook');\n }\n }\n }\n }\n }\n globalHandleError(err, vm, info);\n}\n\nfunction globalHandleError (err, vm, info) {\n if (config.errorHandler) {\n try {\n return config.errorHandler.call(null, err, vm, info)\n } catch (e) {\n logError(e, null, 'config.errorHandler');\n }\n }\n logError(err, vm, info);\n}\n\nfunction logError (err, vm, info) {\n if (process.env.NODE_ENV !== 'production') {\n warn((\"Error in \" + info + \": \\\"\" + (err.toString()) + \"\\\"\"), vm);\n }\n /* istanbul ignore else */\n if ((inBrowser || inWeex) && typeof console !== 'undefined') {\n console.error(err);\n } else {\n throw err\n }\n}\n\n/* */\n/* globals MessageChannel */\n\nvar callbacks = [];\nvar pending = false;\n\nfunction flushCallbacks () {\n pending = false;\n var copies = callbacks.slice(0);\n callbacks.length = 0;\n for (var i = 0; i < copies.length; i++) {\n copies[i]();\n }\n}\n\n// Here we have async deferring wrappers using both microtasks and (macro) tasks.\n// In < 2.4 we used microtasks everywhere, but there are some scenarios where\n// microtasks have too high a priority and fire in between supposedly\n// sequential events (e.g. #4521, #6690) or even between bubbling of the same\n// event (#6566). However, using (macro) tasks everywhere also has subtle problems\n// when state is changed right before repaint (e.g. #6813, out-in transitions).\n// Here we use microtask by default, but expose a way to force (macro) task when\n// needed (e.g. in event handlers attached by v-on).\nvar microTimerFunc;\nvar macroTimerFunc;\nvar useMacroTask = false;\n\n// Determine (macro) task defer implementation.\n// Technically setImmediate should be the ideal choice, but it's only available\n// in IE. The only polyfill that consistently queues the callback after all DOM\n// events triggered in the same loop is by using MessageChannel.\n/* istanbul ignore if */\nif (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {\n macroTimerFunc = function () {\n setImmediate(flushCallbacks);\n };\n} else if (typeof MessageChannel !== 'undefined' && (\n isNative(MessageChannel) ||\n // PhantomJS\n MessageChannel.toString() === '[object MessageChannelConstructor]'\n)) {\n var channel = new MessageChannel();\n var port = channel.port2;\n channel.port1.onmessage = flushCallbacks;\n macroTimerFunc = function () {\n port.postMessage(1);\n };\n} else {\n /* istanbul ignore next */\n macroTimerFunc = function () {\n setTimeout(flushCallbacks, 0);\n };\n}\n\n// Determine microtask defer implementation.\n/* istanbul ignore next, $flow-disable-line */\nif (typeof Promise !== 'undefined' && isNative(Promise)) {\n var p = Promise.resolve();\n microTimerFunc = function () {\n p.then(flushCallbacks);\n // in problematic UIWebViews, Promise.then doesn't completely break, but\n // it can get stuck in a weird state where callbacks are pushed into the\n // microtask queue but the queue isn't being flushed, until the browser\n // needs to do some other work, e.g. handle a timer. Therefore we can\n // \"force\" the microtask queue to be flushed by adding an empty timer.\n if (isIOS) { setTimeout(noop); }\n };\n} else {\n // fallback to macro\n microTimerFunc = macroTimerFunc;\n}\n\n/**\n * Wrap a function so that if any code inside triggers state change,\n * the changes are queued using a (macro) task instead of a microtask.\n */\nfunction withMacroTask (fn) {\n return fn._withTask || (fn._withTask = function () {\n useMacroTask = true;\n var res = fn.apply(null, arguments);\n useMacroTask = false;\n return res\n })\n}\n\nfunction nextTick (cb, ctx) {\n var _resolve;\n callbacks.push(function () {\n if (cb) {\n try {\n cb.call(ctx);\n } catch (e) {\n handleError(e, ctx, 'nextTick');\n }\n } else if (_resolve) {\n _resolve(ctx);\n }\n });\n if (!pending) {\n pending = true;\n if (useMacroTask) {\n macroTimerFunc();\n } else {\n microTimerFunc();\n }\n }\n // $flow-disable-line\n if (!cb && typeof Promise !== 'undefined') {\n return new Promise(function (resolve) {\n _resolve = resolve;\n })\n }\n}\n\n/* */\n\n/* not type checking this file because flow doesn't play well with Proxy */\n\nvar initProxy;\n\nif (process.env.NODE_ENV !== 'production') {\n var allowedGlobals = makeMap(\n 'Infinity,undefined,NaN,isFinite,isNaN,' +\n 'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +\n 'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' +\n 'require' // for Webpack/Browserify\n );\n\n var warnNonPresent = function (target, key) {\n warn(\n \"Property or method \\\"\" + key + \"\\\" is not defined on the instance but \" +\n 'referenced during render. Make sure that this property is reactive, ' +\n 'either in the data option, or for class-based components, by ' +\n 'initializing the property. ' +\n 'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',\n target\n );\n };\n\n var hasProxy =\n typeof Proxy !== 'undefined' && isNative(Proxy);\n\n if (hasProxy) {\n var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');\n config.keyCodes = new Proxy(config.keyCodes, {\n set: function set (target, key, value) {\n if (isBuiltInModifier(key)) {\n warn((\"Avoid overwriting built-in modifier in config.keyCodes: .\" + key));\n return false\n } else {\n target[key] = value;\n return true\n }\n }\n });\n }\n\n var hasHandler = {\n has: function has (target, key) {\n var has = key in target;\n var isAllowed = allowedGlobals(key) || key.charAt(0) === '_';\n if (!has && !isAllowed) {\n warnNonPresent(target, key);\n }\n return has || !isAllowed\n }\n };\n\n var getHandler = {\n get: function get (target, key) {\n if (typeof key === 'string' && !(key in target)) {\n warnNonPresent(target, key);\n }\n return target[key]\n }\n };\n\n initProxy = function initProxy (vm) {\n if (hasProxy) {\n // determine which proxy handler to use\n var options = vm.$options;\n var handlers = options.render && options.render._withStripped\n ? getHandler\n : hasHandler;\n vm._renderProxy = new Proxy(vm, handlers);\n } else {\n vm._renderProxy = vm;\n }\n };\n}\n\n/* */\n\nvar seenObjects = new _Set();\n\n/**\n * Recursively traverse an object to evoke all converted\n * getters, so that every nested property inside the object\n * is collected as a \"deep\" dependency.\n */\nfunction traverse (val) {\n _traverse(val, seenObjects);\n seenObjects.clear();\n}\n\nfunction _traverse (val, seen) {\n var i, keys;\n var isA = Array.isArray(val);\n if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {\n return\n }\n if (val.__ob__) {\n var depId = val.__ob__.dep.id;\n if (seen.has(depId)) {\n return\n }\n seen.add(depId);\n }\n if (isA) {\n i = val.length;\n while (i--) { _traverse(val[i], seen); }\n } else {\n keys = Object.keys(val);\n i = keys.length;\n while (i--) { _traverse(val[keys[i]], seen); }\n }\n}\n\nvar mark;\nvar measure;\n\nif (process.env.NODE_ENV !== 'production') {\n var perf = inBrowser && window.performance;\n /* istanbul ignore if */\n if (\n perf &&\n perf.mark &&\n perf.measure &&\n perf.clearMarks &&\n perf.clearMeasures\n ) {\n mark = function (tag) { return perf.mark(tag); };\n measure = function (name, startTag, endTag) {\n perf.measure(name, startTag, endTag);\n perf.clearMarks(startTag);\n perf.clearMarks(endTag);\n perf.clearMeasures(name);\n };\n }\n}\n\n/* */\n\nvar normalizeEvent = cached(function (name) {\n var passive = name.charAt(0) === '&';\n name = passive ? name.slice(1) : name;\n var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first\n name = once$$1 ? name.slice(1) : name;\n var capture = name.charAt(0) === '!';\n name = capture ? name.slice(1) : name;\n return {\n name: name,\n once: once$$1,\n capture: capture,\n passive: passive\n }\n});\n\nfunction createFnInvoker (fns) {\n function invoker () {\n var arguments$1 = arguments;\n\n var fns = invoker.fns;\n if (Array.isArray(fns)) {\n var cloned = fns.slice();\n for (var i = 0; i < cloned.length; i++) {\n cloned[i].apply(null, arguments$1);\n }\n } else {\n // return handler return value for single handlers\n return fns.apply(null, arguments)\n }\n }\n invoker.fns = fns;\n return invoker\n}\n\nfunction updateListeners (\n on,\n oldOn,\n add,\n remove$$1,\n vm\n) {\n var name, def, cur, old, event;\n for (name in on) {\n def = cur = on[name];\n old = oldOn[name];\n event = normalizeEvent(name);\n /* istanbul ignore if */\n if (isUndef(cur)) {\n process.env.NODE_ENV !== 'production' && warn(\n \"Invalid handler for event \\\"\" + (event.name) + \"\\\": got \" + String(cur),\n vm\n );\n } else if (isUndef(old)) {\n if (isUndef(cur.fns)) {\n cur = on[name] = createFnInvoker(cur);\n }\n add(event.name, cur, event.once, event.capture, event.passive, event.params);\n } else if (cur !== old) {\n old.fns = cur;\n on[name] = old;\n }\n }\n for (name in oldOn) {\n if (isUndef(on[name])) {\n event = normalizeEvent(name);\n remove$$1(event.name, oldOn[name], event.capture);\n }\n }\n}\n\n/* */\n\nfunction mergeVNodeHook (def, hookKey, hook) {\n if (def instanceof VNode) {\n def = def.data.hook || (def.data.hook = {});\n }\n var invoker;\n var oldHook = def[hookKey];\n\n function wrappedHook () {\n hook.apply(this, arguments);\n // important: remove merged hook to ensure it's called only once\n // and prevent memory leak\n remove(invoker.fns, wrappedHook);\n }\n\n if (isUndef(oldHook)) {\n // no existing hook\n invoker = createFnInvoker([wrappedHook]);\n } else {\n /* istanbul ignore if */\n if (isDef(oldHook.fns) && isTrue(oldHook.merged)) {\n // already a merged invoker\n invoker = oldHook;\n invoker.fns.push(wrappedHook);\n } else {\n // existing plain hook\n invoker = createFnInvoker([oldHook, wrappedHook]);\n }\n }\n\n invoker.merged = true;\n def[hookKey] = invoker;\n}\n\n/* */\n\nfunction extractPropsFromVNodeData (\n data,\n Ctor,\n tag\n) {\n // we are only extracting raw values here.\n // validation and default values are handled in the child\n // component itself.\n var propOptions = Ctor.options.props;\n if (isUndef(propOptions)) {\n return\n }\n var res = {};\n var attrs = data.attrs;\n var props = data.props;\n if (isDef(attrs) || isDef(props)) {\n for (var key in propOptions) {\n var altKey = hyphenate(key);\n if (process.env.NODE_ENV !== 'production') {\n var keyInLowerCase = key.toLowerCase();\n if (\n key !== keyInLowerCase &&\n attrs && hasOwn(attrs, keyInLowerCase)\n ) {\n tip(\n \"Prop \\\"\" + keyInLowerCase + \"\\\" is passed to component \" +\n (formatComponentName(tag || Ctor)) + \", but the declared prop name is\" +\n \" \\\"\" + key + \"\\\". \" +\n \"Note that HTML attributes are case-insensitive and camelCased \" +\n \"props need to use their kebab-case equivalents when using in-DOM \" +\n \"templates. You should probably use \\\"\" + altKey + \"\\\" instead of \\\"\" + key + \"\\\".\"\n );\n }\n }\n checkProp(res, props, key, altKey, true) ||\n checkProp(res, attrs, key, altKey, false);\n }\n }\n return res\n}\n\nfunction checkProp (\n res,\n hash,\n key,\n altKey,\n preserve\n) {\n if (isDef(hash)) {\n if (hasOwn(hash, key)) {\n res[key] = hash[key];\n if (!preserve) {\n delete hash[key];\n }\n return true\n } else if (hasOwn(hash, altKey)) {\n res[key] = hash[altKey];\n if (!preserve) {\n delete hash[altKey];\n }\n return true\n }\n }\n return false\n}\n\n/* */\n\n// The template compiler attempts to minimize the need for normalization by\n// statically analyzing the template at compile time.\n//\n// For plain HTML markup, normalization can be completely skipped because the\n// generated render function is guaranteed to return Array. There are\n// two cases where extra normalization is needed:\n\n// 1. When the children contains components - because a functional component\n// may return an Array instead of a single root. In this case, just a simple\n// normalization is needed - if any child is an Array, we flatten the whole\n// thing with Array.prototype.concat. It is guaranteed to be only 1-level deep\n// because functional components already normalize their own children.\nfunction simpleNormalizeChildren (children) {\n for (var i = 0; i < children.length; i++) {\n if (Array.isArray(children[i])) {\n return Array.prototype.concat.apply([], children)\n }\n }\n return children\n}\n\n// 2. When the children contains constructs that always generated nested Arrays,\n// e.g. , , v-for, or when the children is provided by user\n// with hand-written render functions / JSX. In such cases a full normalization\n// is needed to cater to all possible types of children values.\nfunction normalizeChildren (children) {\n return isPrimitive(children)\n ? [createTextVNode(children)]\n : Array.isArray(children)\n ? normalizeArrayChildren(children)\n : undefined\n}\n\nfunction isTextNode (node) {\n return isDef(node) && isDef(node.text) && isFalse(node.isComment)\n}\n\nfunction normalizeArrayChildren (children, nestedIndex) {\n var res = [];\n var i, c, lastIndex, last;\n for (i = 0; i < children.length; i++) {\n c = children[i];\n if (isUndef(c) || typeof c === 'boolean') { continue }\n lastIndex = res.length - 1;\n last = res[lastIndex];\n // nested\n if (Array.isArray(c)) {\n if (c.length > 0) {\n c = normalizeArrayChildren(c, ((nestedIndex || '') + \"_\" + i));\n // merge adjacent text nodes\n if (isTextNode(c[0]) && isTextNode(last)) {\n res[lastIndex] = createTextVNode(last.text + (c[0]).text);\n c.shift();\n }\n res.push.apply(res, c);\n }\n } else if (isPrimitive(c)) {\n if (isTextNode(last)) {\n // merge adjacent text nodes\n // this is necessary for SSR hydration because text nodes are\n // essentially merged when rendered to HTML strings\n res[lastIndex] = createTextVNode(last.text + c);\n } else if (c !== '') {\n // convert primitive to vnode\n res.push(createTextVNode(c));\n }\n } else {\n if (isTextNode(c) && isTextNode(last)) {\n // merge adjacent text nodes\n res[lastIndex] = createTextVNode(last.text + c.text);\n } else {\n // default key for nested array children (likely generated by v-for)\n if (isTrue(children._isVList) &&\n isDef(c.tag) &&\n isUndef(c.key) &&\n isDef(nestedIndex)) {\n c.key = \"__vlist\" + nestedIndex + \"_\" + i + \"__\";\n }\n res.push(c);\n }\n }\n }\n return res\n}\n\n/* */\n\nfunction ensureCtor (comp, base) {\n if (\n comp.__esModule ||\n (hasSymbol && comp[Symbol.toStringTag] === 'Module')\n ) {\n comp = comp.default;\n }\n return isObject(comp)\n ? base.extend(comp)\n : comp\n}\n\nfunction createAsyncPlaceholder (\n factory,\n data,\n context,\n children,\n tag\n) {\n var node = createEmptyVNode();\n node.asyncFactory = factory;\n node.asyncMeta = { data: data, context: context, children: children, tag: tag };\n return node\n}\n\nfunction resolveAsyncComponent (\n factory,\n baseCtor,\n context\n) {\n if (isTrue(factory.error) && isDef(factory.errorComp)) {\n return factory.errorComp\n }\n\n if (isDef(factory.resolved)) {\n return factory.resolved\n }\n\n if (isTrue(factory.loading) && isDef(factory.loadingComp)) {\n return factory.loadingComp\n }\n\n if (isDef(factory.contexts)) {\n // already pending\n factory.contexts.push(context);\n } else {\n var contexts = factory.contexts = [context];\n var sync = true;\n\n var forceRender = function () {\n for (var i = 0, l = contexts.length; i < l; i++) {\n contexts[i].$forceUpdate();\n }\n };\n\n var resolve = once(function (res) {\n // cache resolved\n factory.resolved = ensureCtor(res, baseCtor);\n // invoke callbacks only if this is not a synchronous resolve\n // (async resolves are shimmed as synchronous during SSR)\n if (!sync) {\n forceRender();\n }\n });\n\n var reject = once(function (reason) {\n process.env.NODE_ENV !== 'production' && warn(\n \"Failed to resolve async component: \" + (String(factory)) +\n (reason ? (\"\\nReason: \" + reason) : '')\n );\n if (isDef(factory.errorComp)) {\n factory.error = true;\n forceRender();\n }\n });\n\n var res = factory(resolve, reject);\n\n if (isObject(res)) {\n if (typeof res.then === 'function') {\n // () => Promise\n if (isUndef(factory.resolved)) {\n res.then(resolve, reject);\n }\n } else if (isDef(res.component) && typeof res.component.then === 'function') {\n res.component.then(resolve, reject);\n\n if (isDef(res.error)) {\n factory.errorComp = ensureCtor(res.error, baseCtor);\n }\n\n if (isDef(res.loading)) {\n factory.loadingComp = ensureCtor(res.loading, baseCtor);\n if (res.delay === 0) {\n factory.loading = true;\n } else {\n setTimeout(function () {\n if (isUndef(factory.resolved) && isUndef(factory.error)) {\n factory.loading = true;\n forceRender();\n }\n }, res.delay || 200);\n }\n }\n\n if (isDef(res.timeout)) {\n setTimeout(function () {\n if (isUndef(factory.resolved)) {\n reject(\n process.env.NODE_ENV !== 'production'\n ? (\"timeout (\" + (res.timeout) + \"ms)\")\n : null\n );\n }\n }, res.timeout);\n }\n }\n }\n\n sync = false;\n // return in case resolved synchronously\n return factory.loading\n ? factory.loadingComp\n : factory.resolved\n }\n}\n\n/* */\n\nfunction isAsyncPlaceholder (node) {\n return node.isComment && node.asyncFactory\n}\n\n/* */\n\nfunction getFirstComponentChild (children) {\n if (Array.isArray(children)) {\n for (var i = 0; i < children.length; i++) {\n var c = children[i];\n if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {\n return c\n }\n }\n }\n}\n\n/* */\n\n/* */\n\nfunction initEvents (vm) {\n vm._events = Object.create(null);\n vm._hasHookEvent = false;\n // init parent attached events\n var listeners = vm.$options._parentListeners;\n if (listeners) {\n updateComponentListeners(vm, listeners);\n }\n}\n\nvar target;\n\nfunction add (event, fn, once) {\n if (once) {\n target.$once(event, fn);\n } else {\n target.$on(event, fn);\n }\n}\n\nfunction remove$1 (event, fn) {\n target.$off(event, fn);\n}\n\nfunction updateComponentListeners (\n vm,\n listeners,\n oldListeners\n) {\n target = vm;\n updateListeners(listeners, oldListeners || {}, add, remove$1, vm);\n target = undefined;\n}\n\nfunction eventsMixin (Vue) {\n var hookRE = /^hook:/;\n Vue.prototype.$on = function (event, fn) {\n var this$1 = this;\n\n var vm = this;\n if (Array.isArray(event)) {\n for (var i = 0, l = event.length; i < l; i++) {\n this$1.$on(event[i], fn);\n }\n } else {\n (vm._events[event] || (vm._events[event] = [])).push(fn);\n // optimize hook:event cost by using a boolean flag marked at registration\n // instead of a hash lookup\n if (hookRE.test(event)) {\n vm._hasHookEvent = true;\n }\n }\n return vm\n };\n\n Vue.prototype.$once = function (event, fn) {\n var vm = this;\n function on () {\n vm.$off(event, on);\n fn.apply(vm, arguments);\n }\n on.fn = fn;\n vm.$on(event, on);\n return vm\n };\n\n Vue.prototype.$off = function (event, fn) {\n var this$1 = this;\n\n var vm = this;\n // all\n if (!arguments.length) {\n vm._events = Object.create(null);\n return vm\n }\n // array of events\n if (Array.isArray(event)) {\n for (var i = 0, l = event.length; i < l; i++) {\n this$1.$off(event[i], fn);\n }\n return vm\n }\n // specific event\n var cbs = vm._events[event];\n if (!cbs) {\n return vm\n }\n if (!fn) {\n vm._events[event] = null;\n return vm\n }\n if (fn) {\n // specific handler\n var cb;\n var i$1 = cbs.length;\n while (i$1--) {\n cb = cbs[i$1];\n if (cb === fn || cb.fn === fn) {\n cbs.splice(i$1, 1);\n break\n }\n }\n }\n return vm\n };\n\n Vue.prototype.$emit = function (event) {\n var vm = this;\n if (process.env.NODE_ENV !== 'production') {\n var lowerCaseEvent = event.toLowerCase();\n if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {\n tip(\n \"Event \\\"\" + lowerCaseEvent + \"\\\" is emitted in component \" +\n (formatComponentName(vm)) + \" but the handler is registered for \\\"\" + event + \"\\\". \" +\n \"Note that HTML attributes are case-insensitive and you cannot use \" +\n \"v-on to listen to camelCase events when using in-DOM templates. \" +\n \"You should probably use \\\"\" + (hyphenate(event)) + \"\\\" instead of \\\"\" + event + \"\\\".\"\n );\n }\n }\n var cbs = vm._events[event];\n if (cbs) {\n cbs = cbs.length > 1 ? toArray(cbs) : cbs;\n var args = toArray(arguments, 1);\n for (var i = 0, l = cbs.length; i < l; i++) {\n try {\n cbs[i].apply(vm, args);\n } catch (e) {\n handleError(e, vm, (\"event handler for \\\"\" + event + \"\\\"\"));\n }\n }\n }\n return vm\n };\n}\n\n/* */\n\n\n\n/**\n * Runtime helper for resolving raw children VNodes into a slot object.\n */\nfunction resolveSlots (\n children,\n context\n) {\n var slots = {};\n if (!children) {\n return slots\n }\n for (var i = 0, l = children.length; i < l; i++) {\n var child = children[i];\n var data = child.data;\n // remove slot attribute if the node is resolved as a Vue slot node\n if (data && data.attrs && data.attrs.slot) {\n delete data.attrs.slot;\n }\n // named slots should only be respected if the vnode was rendered in the\n // same context.\n if ((child.context === context || child.fnContext === context) &&\n data && data.slot != null\n ) {\n var name = data.slot;\n var slot = (slots[name] || (slots[name] = []));\n if (child.tag === 'template') {\n slot.push.apply(slot, child.children || []);\n } else {\n slot.push(child);\n }\n } else {\n (slots.default || (slots.default = [])).push(child);\n }\n }\n // ignore slots that contains only whitespace\n for (var name$1 in slots) {\n if (slots[name$1].every(isWhitespace)) {\n delete slots[name$1];\n }\n }\n return slots\n}\n\nfunction isWhitespace (node) {\n return (node.isComment && !node.asyncFactory) || node.text === ' '\n}\n\nfunction resolveScopedSlots (\n fns, // see flow/vnode\n res\n) {\n res = res || {};\n for (var i = 0; i < fns.length; i++) {\n if (Array.isArray(fns[i])) {\n resolveScopedSlots(fns[i], res);\n } else {\n res[fns[i].key] = fns[i].fn;\n }\n }\n return res\n}\n\n/* */\n\nvar activeInstance = null;\nvar isUpdatingChildComponent = false;\n\nfunction initLifecycle (vm) {\n var options = vm.$options;\n\n // locate first non-abstract parent\n var parent = options.parent;\n if (parent && !options.abstract) {\n while (parent.$options.abstract && parent.$parent) {\n parent = parent.$parent;\n }\n parent.$children.push(vm);\n }\n\n vm.$parent = parent;\n vm.$root = parent ? parent.$root : vm;\n\n vm.$children = [];\n vm.$refs = {};\n\n vm._watcher = null;\n vm._inactive = null;\n vm._directInactive = false;\n vm._isMounted = false;\n vm._isDestroyed = false;\n vm._isBeingDestroyed = false;\n}\n\nfunction lifecycleMixin (Vue) {\n Vue.prototype._update = function (vnode, hydrating) {\n var vm = this;\n if (vm._isMounted) {\n callHook(vm, 'beforeUpdate');\n }\n var prevEl = vm.$el;\n var prevVnode = vm._vnode;\n var prevActiveInstance = activeInstance;\n activeInstance = vm;\n vm._vnode = vnode;\n // Vue.prototype.__patch__ is injected in entry points\n // based on the rendering backend used.\n if (!prevVnode) {\n // initial render\n vm.$el = vm.__patch__(\n vm.$el, vnode, hydrating, false /* removeOnly */,\n vm.$options._parentElm,\n vm.$options._refElm\n );\n // no need for the ref nodes after initial patch\n // this prevents keeping a detached DOM tree in memory (#5851)\n vm.$options._parentElm = vm.$options._refElm = null;\n } else {\n // updates\n vm.$el = vm.__patch__(prevVnode, vnode);\n }\n activeInstance = prevActiveInstance;\n // update __vue__ reference\n if (prevEl) {\n prevEl.__vue__ = null;\n }\n if (vm.$el) {\n vm.$el.__vue__ = vm;\n }\n // if parent is an HOC, update its $el as well\n if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {\n vm.$parent.$el = vm.$el;\n }\n // updated hook is called by the scheduler to ensure that children are\n // updated in a parent's updated hook.\n };\n\n Vue.prototype.$forceUpdate = function () {\n var vm = this;\n if (vm._watcher) {\n vm._watcher.update();\n }\n };\n\n Vue.prototype.$destroy = function () {\n var vm = this;\n if (vm._isBeingDestroyed) {\n return\n }\n callHook(vm, 'beforeDestroy');\n vm._isBeingDestroyed = true;\n // remove self from parent\n var parent = vm.$parent;\n if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {\n remove(parent.$children, vm);\n }\n // teardown watchers\n if (vm._watcher) {\n vm._watcher.teardown();\n }\n var i = vm._watchers.length;\n while (i--) {\n vm._watchers[i].teardown();\n }\n // remove reference from data ob\n // frozen object may not have observer.\n if (vm._data.__ob__) {\n vm._data.__ob__.vmCount--;\n }\n // call the last hook...\n vm._isDestroyed = true;\n // invoke destroy hooks on current rendered tree\n vm.__patch__(vm._vnode, null);\n // fire destroyed hook\n callHook(vm, 'destroyed');\n // turn off all instance listeners.\n vm.$off();\n // remove __vue__ reference\n if (vm.$el) {\n vm.$el.__vue__ = null;\n }\n // release circular reference (#6759)\n if (vm.$vnode) {\n vm.$vnode.parent = null;\n }\n };\n}\n\nfunction mountComponent (\n vm,\n el,\n hydrating\n) {\n vm.$el = el;\n if (!vm.$options.render) {\n vm.$options.render = createEmptyVNode;\n if (process.env.NODE_ENV !== 'production') {\n /* istanbul ignore if */\n if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||\n vm.$options.el || el) {\n warn(\n 'You are using the runtime-only build of Vue where the template ' +\n 'compiler is not available. Either pre-compile the templates into ' +\n 'render functions, or use the compiler-included build.',\n vm\n );\n } else {\n warn(\n 'Failed to mount component: template or render function not defined.',\n vm\n );\n }\n }\n }\n callHook(vm, 'beforeMount');\n\n var updateComponent;\n /* istanbul ignore if */\n if (process.env.NODE_ENV !== 'production' && config.performance && mark) {\n updateComponent = function () {\n var name = vm._name;\n var id = vm._uid;\n var startTag = \"vue-perf-start:\" + id;\n var endTag = \"vue-perf-end:\" + id;\n\n mark(startTag);\n var vnode = vm._render();\n mark(endTag);\n measure((\"vue \" + name + \" render\"), startTag, endTag);\n\n mark(startTag);\n vm._update(vnode, hydrating);\n mark(endTag);\n measure((\"vue \" + name + \" patch\"), startTag, endTag);\n };\n } else {\n updateComponent = function () {\n vm._update(vm._render(), hydrating);\n };\n }\n\n // we set this to vm._watcher inside the watcher's constructor\n // since the watcher's initial patch may call $forceUpdate (e.g. inside child\n // component's mounted hook), which relies on vm._watcher being already defined\n new Watcher(vm, updateComponent, noop, null, true /* isRenderWatcher */);\n hydrating = false;\n\n // manually mounted instance, call mounted on self\n // mounted is called for render-created child components in its inserted hook\n if (vm.$vnode == null) {\n vm._isMounted = true;\n callHook(vm, 'mounted');\n }\n return vm\n}\n\nfunction updateChildComponent (\n vm,\n propsData,\n listeners,\n parentVnode,\n renderChildren\n) {\n if (process.env.NODE_ENV !== 'production') {\n isUpdatingChildComponent = true;\n }\n\n // determine whether component has slot children\n // we need to do this before overwriting $options._renderChildren\n var hasChildren = !!(\n renderChildren || // has new static slots\n vm.$options._renderChildren || // has old static slots\n parentVnode.data.scopedSlots || // has new scoped slots\n vm.$scopedSlots !== emptyObject // has old scoped slots\n );\n\n vm.$options._parentVnode = parentVnode;\n vm.$vnode = parentVnode; // update vm's placeholder node without re-render\n\n if (vm._vnode) { // update child tree's parent\n vm._vnode.parent = parentVnode;\n }\n vm.$options._renderChildren = renderChildren;\n\n // update $attrs and $listeners hash\n // these are also reactive so they may trigger child update if the child\n // used them during render\n vm.$attrs = parentVnode.data.attrs || emptyObject;\n vm.$listeners = listeners || emptyObject;\n\n // update props\n if (propsData && vm.$options.props) {\n toggleObserving(false);\n var props = vm._props;\n var propKeys = vm.$options._propKeys || [];\n for (var i = 0; i < propKeys.length; i++) {\n var key = propKeys[i];\n var propOptions = vm.$options.props; // wtf flow?\n props[key] = validateProp(key, propOptions, propsData, vm);\n }\n toggleObserving(true);\n // keep a copy of raw propsData\n vm.$options.propsData = propsData;\n }\n\n // update listeners\n listeners = listeners || emptyObject;\n var oldListeners = vm.$options._parentListeners;\n vm.$options._parentListeners = listeners;\n updateComponentListeners(vm, listeners, oldListeners);\n\n // resolve slots + force update if has children\n if (hasChildren) {\n vm.$slots = resolveSlots(renderChildren, parentVnode.context);\n vm.$forceUpdate();\n }\n\n if (process.env.NODE_ENV !== 'production') {\n isUpdatingChildComponent = false;\n }\n}\n\nfunction isInInactiveTree (vm) {\n while (vm && (vm = vm.$parent)) {\n if (vm._inactive) { return true }\n }\n return false\n}\n\nfunction activateChildComponent (vm, direct) {\n if (direct) {\n vm._directInactive = false;\n if (isInInactiveTree(vm)) {\n return\n }\n } else if (vm._directInactive) {\n return\n }\n if (vm._inactive || vm._inactive === null) {\n vm._inactive = false;\n for (var i = 0; i < vm.$children.length; i++) {\n activateChildComponent(vm.$children[i]);\n }\n callHook(vm, 'activated');\n }\n}\n\nfunction deactivateChildComponent (vm, direct) {\n if (direct) {\n vm._directInactive = true;\n if (isInInactiveTree(vm)) {\n return\n }\n }\n if (!vm._inactive) {\n vm._inactive = true;\n for (var i = 0; i < vm.$children.length; i++) {\n deactivateChildComponent(vm.$children[i]);\n }\n callHook(vm, 'deactivated');\n }\n}\n\nfunction callHook (vm, hook) {\n // #7573 disable dep collection when invoking lifecycle hooks\n pushTarget();\n var handlers = vm.$options[hook];\n if (handlers) {\n for (var i = 0, j = handlers.length; i < j; i++) {\n try {\n handlers[i].call(vm);\n } catch (e) {\n handleError(e, vm, (hook + \" hook\"));\n }\n }\n }\n if (vm._hasHookEvent) {\n vm.$emit('hook:' + hook);\n }\n popTarget();\n}\n\n/* */\n\n\nvar MAX_UPDATE_COUNT = 100;\n\nvar queue = [];\nvar activatedChildren = [];\nvar has = {};\nvar circular = {};\nvar waiting = false;\nvar flushing = false;\nvar index = 0;\n\n/**\n * Reset the scheduler's state.\n */\nfunction resetSchedulerState () {\n index = queue.length = activatedChildren.length = 0;\n has = {};\n if (process.env.NODE_ENV !== 'production') {\n circular = {};\n }\n waiting = flushing = false;\n}\n\n/**\n * Flush both queues and run the watchers.\n */\nfunction flushSchedulerQueue () {\n flushing = true;\n var watcher, id;\n\n // Sort queue before flush.\n // This ensures that:\n // 1. Components are updated from parent to child. (because parent is always\n // created before the child)\n // 2. A component's user watchers are run before its render watcher (because\n // user watchers are created before the render watcher)\n // 3. If a component is destroyed during a parent component's watcher run,\n // its watchers can be skipped.\n queue.sort(function (a, b) { return a.id - b.id; });\n\n // do not cache length because more watchers might be pushed\n // as we run existing watchers\n for (index = 0; index < queue.length; index++) {\n watcher = queue[index];\n id = watcher.id;\n has[id] = null;\n watcher.run();\n // in dev build, check and stop circular updates.\n if (process.env.NODE_ENV !== 'production' && has[id] != null) {\n circular[id] = (circular[id] || 0) + 1;\n if (circular[id] > MAX_UPDATE_COUNT) {\n warn(\n 'You may have an infinite update loop ' + (\n watcher.user\n ? (\"in watcher with expression \\\"\" + (watcher.expression) + \"\\\"\")\n : \"in a component render function.\"\n ),\n watcher.vm\n );\n break\n }\n }\n }\n\n // keep copies of post queues before resetting state\n var activatedQueue = activatedChildren.slice();\n var updatedQueue = queue.slice();\n\n resetSchedulerState();\n\n // call component updated and activated hooks\n callActivatedHooks(activatedQueue);\n callUpdatedHooks(updatedQueue);\n\n // devtool hook\n /* istanbul ignore if */\n if (devtools && config.devtools) {\n devtools.emit('flush');\n }\n}\n\nfunction callUpdatedHooks (queue) {\n var i = queue.length;\n while (i--) {\n var watcher = queue[i];\n var vm = watcher.vm;\n if (vm._watcher === watcher && vm._isMounted) {\n callHook(vm, 'updated');\n }\n }\n}\n\n/**\n * Queue a kept-alive component that was activated during patch.\n * The queue will be processed after the entire tree has been patched.\n */\nfunction queueActivatedComponent (vm) {\n // setting _inactive to false here so that a render function can\n // rely on checking whether it's in an inactive tree (e.g. router-view)\n vm._inactive = false;\n activatedChildren.push(vm);\n}\n\nfunction callActivatedHooks (queue) {\n for (var i = 0; i < queue.length; i++) {\n queue[i]._inactive = true;\n activateChildComponent(queue[i], true /* true */);\n }\n}\n\n/**\n * Push a watcher into the watcher queue.\n * Jobs with duplicate IDs will be skipped unless it's\n * pushed when the queue is being flushed.\n */\nfunction queueWatcher (watcher) {\n var id = watcher.id;\n if (has[id] == null) {\n has[id] = true;\n if (!flushing) {\n queue.push(watcher);\n } else {\n // if already flushing, splice the watcher based on its id\n // if already past its id, it will be run next immediately.\n var i = queue.length - 1;\n while (i > index && queue[i].id > watcher.id) {\n i--;\n }\n queue.splice(i + 1, 0, watcher);\n }\n // queue the flush\n if (!waiting) {\n waiting = true;\n nextTick(flushSchedulerQueue);\n }\n }\n}\n\n/* */\n\nvar uid$1 = 0;\n\n/**\n * A watcher parses an expression, collects dependencies,\n * and fires callback when the expression value changes.\n * This is used for both the $watch() api and directives.\n */\nvar Watcher = function Watcher (\n vm,\n expOrFn,\n cb,\n options,\n isRenderWatcher\n) {\n this.vm = vm;\n if (isRenderWatcher) {\n vm._watcher = this;\n }\n vm._watchers.push(this);\n // options\n if (options) {\n this.deep = !!options.deep;\n this.user = !!options.user;\n this.lazy = !!options.lazy;\n this.sync = !!options.sync;\n } else {\n this.deep = this.user = this.lazy = this.sync = false;\n }\n this.cb = cb;\n this.id = ++uid$1; // uid for batching\n this.active = true;\n this.dirty = this.lazy; // for lazy watchers\n this.deps = [];\n this.newDeps = [];\n this.depIds = new _Set();\n this.newDepIds = new _Set();\n this.expression = process.env.NODE_ENV !== 'production'\n ? expOrFn.toString()\n : '';\n // parse expression for getter\n if (typeof expOrFn === 'function') {\n this.getter = expOrFn;\n } else {\n this.getter = parsePath(expOrFn);\n if (!this.getter) {\n this.getter = function () {};\n process.env.NODE_ENV !== 'production' && warn(\n \"Failed watching path: \\\"\" + expOrFn + \"\\\" \" +\n 'Watcher only accepts simple dot-delimited paths. ' +\n 'For full control, use a function instead.',\n vm\n );\n }\n }\n this.value = this.lazy\n ? undefined\n : this.get();\n};\n\n/**\n * Evaluate the getter, and re-collect dependencies.\n */\nWatcher.prototype.get = function get () {\n pushTarget(this);\n var value;\n var vm = this.vm;\n try {\n value = this.getter.call(vm, vm);\n } catch (e) {\n if (this.user) {\n handleError(e, vm, (\"getter for watcher \\\"\" + (this.expression) + \"\\\"\"));\n } else {\n throw e\n }\n } finally {\n // \"touch\" every property so they are all tracked as\n // dependencies for deep watching\n if (this.deep) {\n traverse(value);\n }\n popTarget();\n this.cleanupDeps();\n }\n return value\n};\n\n/**\n * Add a dependency to this directive.\n */\nWatcher.prototype.addDep = function addDep (dep) {\n var id = dep.id;\n if (!this.newDepIds.has(id)) {\n this.newDepIds.add(id);\n this.newDeps.push(dep);\n if (!this.depIds.has(id)) {\n dep.addSub(this);\n }\n }\n};\n\n/**\n * Clean up for dependency collection.\n */\nWatcher.prototype.cleanupDeps = function cleanupDeps () {\n var this$1 = this;\n\n var i = this.deps.length;\n while (i--) {\n var dep = this$1.deps[i];\n if (!this$1.newDepIds.has(dep.id)) {\n dep.removeSub(this$1);\n }\n }\n var tmp = this.depIds;\n this.depIds = this.newDepIds;\n this.newDepIds = tmp;\n this.newDepIds.clear();\n tmp = this.deps;\n this.deps = this.newDeps;\n this.newDeps = tmp;\n this.newDeps.length = 0;\n};\n\n/**\n * Subscriber interface.\n * Will be called when a dependency changes.\n */\nWatcher.prototype.update = function update () {\n /* istanbul ignore else */\n if (this.lazy) {\n this.dirty = true;\n } else if (this.sync) {\n this.run();\n } else {\n queueWatcher(this);\n }\n};\n\n/**\n * Scheduler job interface.\n * Will be called by the scheduler.\n */\nWatcher.prototype.run = function run () {\n if (this.active) {\n var value = this.get();\n if (\n value !== this.value ||\n // Deep watchers and watchers on Object/Arrays should fire even\n // when the value is the same, because the value may\n // have mutated.\n isObject(value) ||\n this.deep\n ) {\n // set new value\n var oldValue = this.value;\n this.value = value;\n if (this.user) {\n try {\n this.cb.call(this.vm, value, oldValue);\n } catch (e) {\n handleError(e, this.vm, (\"callback for watcher \\\"\" + (this.expression) + \"\\\"\"));\n }\n } else {\n this.cb.call(this.vm, value, oldValue);\n }\n }\n }\n};\n\n/**\n * Evaluate the value of the watcher.\n * This only gets called for lazy watchers.\n */\nWatcher.prototype.evaluate = function evaluate () {\n this.value = this.get();\n this.dirty = false;\n};\n\n/**\n * Depend on all deps collected by this watcher.\n */\nWatcher.prototype.depend = function depend () {\n var this$1 = this;\n\n var i = this.deps.length;\n while (i--) {\n this$1.deps[i].depend();\n }\n};\n\n/**\n * Remove self from all dependencies' subscriber list.\n */\nWatcher.prototype.teardown = function teardown () {\n var this$1 = this;\n\n if (this.active) {\n // remove self from vm's watcher list\n // this is a somewhat expensive operation so we skip it\n // if the vm is being destroyed.\n if (!this.vm._isBeingDestroyed) {\n remove(this.vm._watchers, this);\n }\n var i = this.deps.length;\n while (i--) {\n this$1.deps[i].removeSub(this$1);\n }\n this.active = false;\n }\n};\n\n/* */\n\nvar sharedPropertyDefinition = {\n enumerable: true,\n configurable: true,\n get: noop,\n set: noop\n};\n\nfunction proxy (target, sourceKey, key) {\n sharedPropertyDefinition.get = function proxyGetter () {\n return this[sourceKey][key]\n };\n sharedPropertyDefinition.set = function proxySetter (val) {\n this[sourceKey][key] = val;\n };\n Object.defineProperty(target, key, sharedPropertyDefinition);\n}\n\nfunction initState (vm) {\n vm._watchers = [];\n var opts = vm.$options;\n if (opts.props) { initProps(vm, opts.props); }\n if (opts.methods) { initMethods(vm, opts.methods); }\n if (opts.data) {\n initData(vm);\n } else {\n observe(vm._data = {}, true /* asRootData */);\n }\n if (opts.computed) { initComputed(vm, opts.computed); }\n if (opts.watch && opts.watch !== nativeWatch) {\n initWatch(vm, opts.watch);\n }\n}\n\nfunction initProps (vm, propsOptions) {\n var propsData = vm.$options.propsData || {};\n var props = vm._props = {};\n // cache prop keys so that future props updates can iterate using Array\n // instead of dynamic object key enumeration.\n var keys = vm.$options._propKeys = [];\n var isRoot = !vm.$parent;\n // root instance props should be converted\n if (!isRoot) {\n toggleObserving(false);\n }\n var loop = function ( key ) {\n keys.push(key);\n var value = validateProp(key, propsOptions, propsData, vm);\n /* istanbul ignore else */\n if (process.env.NODE_ENV !== 'production') {\n var hyphenatedKey = hyphenate(key);\n if (isReservedAttribute(hyphenatedKey) ||\n config.isReservedAttr(hyphenatedKey)) {\n warn(\n (\"\\\"\" + hyphenatedKey + \"\\\" is a reserved attribute and cannot be used as component prop.\"),\n vm\n );\n }\n defineReactive(props, key, value, function () {\n if (vm.$parent && !isUpdatingChildComponent) {\n warn(\n \"Avoid mutating a prop directly since the value will be \" +\n \"overwritten whenever the parent component re-renders. \" +\n \"Instead, use a data or computed property based on the prop's \" +\n \"value. Prop being mutated: \\\"\" + key + \"\\\"\",\n vm\n );\n }\n });\n } else {\n defineReactive(props, key, value);\n }\n // static props are already proxied on the component's prototype\n // during Vue.extend(). We only need to proxy props defined at\n // instantiation here.\n if (!(key in vm)) {\n proxy(vm, \"_props\", key);\n }\n };\n\n for (var key in propsOptions) loop( key );\n toggleObserving(true);\n}\n\nfunction initData (vm) {\n var data = vm.$options.data;\n data = vm._data = typeof data === 'function'\n ? getData(data, vm)\n : data || {};\n if (!isPlainObject(data)) {\n data = {};\n process.env.NODE_ENV !== 'production' && warn(\n 'data functions should return an object:\\n' +\n 'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',\n vm\n );\n }\n // proxy data on instance\n var keys = Object.keys(data);\n var props = vm.$options.props;\n var methods = vm.$options.methods;\n var i = keys.length;\n while (i--) {\n var key = keys[i];\n if (process.env.NODE_ENV !== 'production') {\n if (methods && hasOwn(methods, key)) {\n warn(\n (\"Method \\\"\" + key + \"\\\" has already been defined as a data property.\"),\n vm\n );\n }\n }\n if (props && hasOwn(props, key)) {\n process.env.NODE_ENV !== 'production' && warn(\n \"The data property \\\"\" + key + \"\\\" is already declared as a prop. \" +\n \"Use prop default value instead.\",\n vm\n );\n } else if (!isReserved(key)) {\n proxy(vm, \"_data\", key);\n }\n }\n // observe data\n observe(data, true /* asRootData */);\n}\n\nfunction getData (data, vm) {\n // #7573 disable dep collection when invoking data getters\n pushTarget();\n try {\n return data.call(vm, vm)\n } catch (e) {\n handleError(e, vm, \"data()\");\n return {}\n } finally {\n popTarget();\n }\n}\n\nvar computedWatcherOptions = { lazy: true };\n\nfunction initComputed (vm, computed) {\n // $flow-disable-line\n var watchers = vm._computedWatchers = Object.create(null);\n // computed properties are just getters during SSR\n var isSSR = isServerRendering();\n\n for (var key in computed) {\n var userDef = computed[key];\n var getter = typeof userDef === 'function' ? userDef : userDef.get;\n if (process.env.NODE_ENV !== 'production' && getter == null) {\n warn(\n (\"Getter is missing for computed property \\\"\" + key + \"\\\".\"),\n vm\n );\n }\n\n if (!isSSR) {\n // create internal watcher for the computed property.\n watchers[key] = new Watcher(\n vm,\n getter || noop,\n noop,\n computedWatcherOptions\n );\n }\n\n // component-defined computed properties are already defined on the\n // component prototype. We only need to define computed properties defined\n // at instantiation here.\n if (!(key in vm)) {\n defineComputed(vm, key, userDef);\n } else if (process.env.NODE_ENV !== 'production') {\n if (key in vm.$data) {\n warn((\"The computed property \\\"\" + key + \"\\\" is already defined in data.\"), vm);\n } else if (vm.$options.props && key in vm.$options.props) {\n warn((\"The computed property \\\"\" + key + \"\\\" is already defined as a prop.\"), vm);\n }\n }\n }\n}\n\nfunction defineComputed (\n target,\n key,\n userDef\n) {\n var shouldCache = !isServerRendering();\n if (typeof userDef === 'function') {\n sharedPropertyDefinition.get = shouldCache\n ? createComputedGetter(key)\n : userDef;\n sharedPropertyDefinition.set = noop;\n } else {\n sharedPropertyDefinition.get = userDef.get\n ? shouldCache && userDef.cache !== false\n ? createComputedGetter(key)\n : userDef.get\n : noop;\n sharedPropertyDefinition.set = userDef.set\n ? userDef.set\n : noop;\n }\n if (process.env.NODE_ENV !== 'production' &&\n sharedPropertyDefinition.set === noop) {\n sharedPropertyDefinition.set = function () {\n warn(\n (\"Computed property \\\"\" + key + \"\\\" was assigned to but it has no setter.\"),\n this\n );\n };\n }\n Object.defineProperty(target, key, sharedPropertyDefinition);\n}\n\nfunction createComputedGetter (key) {\n return function computedGetter () {\n var watcher = this._computedWatchers && this._computedWatchers[key];\n if (watcher) {\n if (watcher.dirty) {\n watcher.evaluate();\n }\n if (Dep.target) {\n watcher.depend();\n }\n return watcher.value\n }\n }\n}\n\nfunction initMethods (vm, methods) {\n var props = vm.$options.props;\n for (var key in methods) {\n if (process.env.NODE_ENV !== 'production') {\n if (methods[key] == null) {\n warn(\n \"Method \\\"\" + key + \"\\\" has an undefined value in the component definition. \" +\n \"Did you reference the function correctly?\",\n vm\n );\n }\n if (props && hasOwn(props, key)) {\n warn(\n (\"Method \\\"\" + key + \"\\\" has already been defined as a prop.\"),\n vm\n );\n }\n if ((key in vm) && isReserved(key)) {\n warn(\n \"Method \\\"\" + key + \"\\\" conflicts with an existing Vue instance method. \" +\n \"Avoid defining component methods that start with _ or $.\"\n );\n }\n }\n vm[key] = methods[key] == null ? noop : bind(methods[key], vm);\n }\n}\n\nfunction initWatch (vm, watch) {\n for (var key in watch) {\n var handler = watch[key];\n if (Array.isArray(handler)) {\n for (var i = 0; i < handler.length; i++) {\n createWatcher(vm, key, handler[i]);\n }\n } else {\n createWatcher(vm, key, handler);\n }\n }\n}\n\nfunction createWatcher (\n vm,\n expOrFn,\n handler,\n options\n) {\n if (isPlainObject(handler)) {\n options = handler;\n handler = handler.handler;\n }\n if (typeof handler === 'string') {\n handler = vm[handler];\n }\n return vm.$watch(expOrFn, handler, options)\n}\n\nfunction stateMixin (Vue) {\n // flow somehow has problems with directly declared definition object\n // when using Object.defineProperty, so we have to procedurally build up\n // the object here.\n var dataDef = {};\n dataDef.get = function () { return this._data };\n var propsDef = {};\n propsDef.get = function () { return this._props };\n if (process.env.NODE_ENV !== 'production') {\n dataDef.set = function (newData) {\n warn(\n 'Avoid replacing instance root $data. ' +\n 'Use nested data properties instead.',\n this\n );\n };\n propsDef.set = function () {\n warn(\"$props is readonly.\", this);\n };\n }\n Object.defineProperty(Vue.prototype, '$data', dataDef);\n Object.defineProperty(Vue.prototype, '$props', propsDef);\n\n Vue.prototype.$set = set;\n Vue.prototype.$delete = del;\n\n Vue.prototype.$watch = function (\n expOrFn,\n cb,\n options\n ) {\n var vm = this;\n if (isPlainObject(cb)) {\n return createWatcher(vm, expOrFn, cb, options)\n }\n options = options || {};\n options.user = true;\n var watcher = new Watcher(vm, expOrFn, cb, options);\n if (options.immediate) {\n cb.call(vm, watcher.value);\n }\n return function unwatchFn () {\n watcher.teardown();\n }\n };\n}\n\n/* */\n\nfunction initProvide (vm) {\n var provide = vm.$options.provide;\n if (provide) {\n vm._provided = typeof provide === 'function'\n ? provide.call(vm)\n : provide;\n }\n}\n\nfunction initInjections (vm) {\n var result = resolveInject(vm.$options.inject, vm);\n if (result) {\n toggleObserving(false);\n Object.keys(result).forEach(function (key) {\n /* istanbul ignore else */\n if (process.env.NODE_ENV !== 'production') {\n defineReactive(vm, key, result[key], function () {\n warn(\n \"Avoid mutating an injected value directly since the changes will be \" +\n \"overwritten whenever the provided component re-renders. \" +\n \"injection being mutated: \\\"\" + key + \"\\\"\",\n vm\n );\n });\n } else {\n defineReactive(vm, key, result[key]);\n }\n });\n toggleObserving(true);\n }\n}\n\nfunction resolveInject (inject, vm) {\n if (inject) {\n // inject is :any because flow is not smart enough to figure out cached\n var result = Object.create(null);\n var keys = hasSymbol\n ? Reflect.ownKeys(inject).filter(function (key) {\n /* istanbul ignore next */\n return Object.getOwnPropertyDescriptor(inject, key).enumerable\n })\n : Object.keys(inject);\n\n for (var i = 0; i < keys.length; i++) {\n var key = keys[i];\n var provideKey = inject[key].from;\n var source = vm;\n while (source) {\n if (source._provided && hasOwn(source._provided, provideKey)) {\n result[key] = source._provided[provideKey];\n break\n }\n source = source.$parent;\n }\n if (!source) {\n if ('default' in inject[key]) {\n var provideDefault = inject[key].default;\n result[key] = typeof provideDefault === 'function'\n ? provideDefault.call(vm)\n : provideDefault;\n } else if (process.env.NODE_ENV !== 'production') {\n warn((\"Injection \\\"\" + key + \"\\\" not found\"), vm);\n }\n }\n }\n return result\n }\n}\n\n/* */\n\n/**\n * Runtime helper for rendering v-for lists.\n */\nfunction renderList (\n val,\n render\n) {\n var ret, i, l, keys, key;\n if (Array.isArray(val) || typeof val === 'string') {\n ret = new Array(val.length);\n for (i = 0, l = val.length; i < l; i++) {\n ret[i] = render(val[i], i);\n }\n } else if (typeof val === 'number') {\n ret = new Array(val);\n for (i = 0; i < val; i++) {\n ret[i] = render(i + 1, i);\n }\n } else if (isObject(val)) {\n keys = Object.keys(val);\n ret = new Array(keys.length);\n for (i = 0, l = keys.length; i < l; i++) {\n key = keys[i];\n ret[i] = render(val[key], key, i);\n }\n }\n if (isDef(ret)) {\n (ret)._isVList = true;\n }\n return ret\n}\n\n/* */\n\n/**\n * Runtime helper for rendering \n */\nfunction renderSlot (\n name,\n fallback,\n props,\n bindObject\n) {\n var scopedSlotFn = this.$scopedSlots[name];\n var nodes;\n if (scopedSlotFn) { // scoped slot\n props = props || {};\n if (bindObject) {\n if (process.env.NODE_ENV !== 'production' && !isObject(bindObject)) {\n warn(\n 'slot v-bind without argument expects an Object',\n this\n );\n }\n props = extend(extend({}, bindObject), props);\n }\n nodes = scopedSlotFn(props) || fallback;\n } else {\n var slotNodes = this.$slots[name];\n // warn duplicate slot usage\n if (slotNodes) {\n if (process.env.NODE_ENV !== 'production' && slotNodes._rendered) {\n warn(\n \"Duplicate presence of slot \\\"\" + name + \"\\\" found in the same render tree \" +\n \"- this will likely cause render errors.\",\n this\n );\n }\n slotNodes._rendered = true;\n }\n nodes = slotNodes || fallback;\n }\n\n var target = props && props.slot;\n if (target) {\n return this.$createElement('template', { slot: target }, nodes)\n } else {\n return nodes\n }\n}\n\n/* */\n\n/**\n * Runtime helper for resolving filters\n */\nfunction resolveFilter (id) {\n return resolveAsset(this.$options, 'filters', id, true) || identity\n}\n\n/* */\n\nfunction isKeyNotMatch (expect, actual) {\n if (Array.isArray(expect)) {\n return expect.indexOf(actual) === -1\n } else {\n return expect !== actual\n }\n}\n\n/**\n * Runtime helper for checking keyCodes from config.\n * exposed as Vue.prototype._k\n * passing in eventKeyName as last argument separately for backwards compat\n */\nfunction checkKeyCodes (\n eventKeyCode,\n key,\n builtInKeyCode,\n eventKeyName,\n builtInKeyName\n) {\n var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;\n if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {\n return isKeyNotMatch(builtInKeyName, eventKeyName)\n } else if (mappedKeyCode) {\n return isKeyNotMatch(mappedKeyCode, eventKeyCode)\n } else if (eventKeyName) {\n return hyphenate(eventKeyName) !== key\n }\n}\n\n/* */\n\n/**\n * Runtime helper for merging v-bind=\"object\" into a VNode's data.\n */\nfunction bindObjectProps (\n data,\n tag,\n value,\n asProp,\n isSync\n) {\n if (value) {\n if (!isObject(value)) {\n process.env.NODE_ENV !== 'production' && warn(\n 'v-bind without argument expects an Object or Array value',\n this\n );\n } else {\n if (Array.isArray(value)) {\n value = toObject(value);\n }\n var hash;\n var loop = function ( key ) {\n if (\n key === 'class' ||\n key === 'style' ||\n isReservedAttribute(key)\n ) {\n hash = data;\n } else {\n var type = data.attrs && data.attrs.type;\n hash = asProp || config.mustUseProp(tag, type, key)\n ? data.domProps || (data.domProps = {})\n : data.attrs || (data.attrs = {});\n }\n if (!(key in hash)) {\n hash[key] = value[key];\n\n if (isSync) {\n var on = data.on || (data.on = {});\n on[(\"update:\" + key)] = function ($event) {\n value[key] = $event;\n };\n }\n }\n };\n\n for (var key in value) loop( key );\n }\n }\n return data\n}\n\n/* */\n\n/**\n * Runtime helper for rendering static trees.\n */\nfunction renderStatic (\n index,\n isInFor\n) {\n var cached = this._staticTrees || (this._staticTrees = []);\n var tree = cached[index];\n // if has already-rendered static tree and not inside v-for,\n // we can reuse the same tree.\n if (tree && !isInFor) {\n return tree\n }\n // otherwise, render a fresh tree.\n tree = cached[index] = this.$options.staticRenderFns[index].call(\n this._renderProxy,\n null,\n this // for render fns generated for functional component templates\n );\n markStatic(tree, (\"__static__\" + index), false);\n return tree\n}\n\n/**\n * Runtime helper for v-once.\n * Effectively it means marking the node as static with a unique key.\n */\nfunction markOnce (\n tree,\n index,\n key\n) {\n markStatic(tree, (\"__once__\" + index + (key ? (\"_\" + key) : \"\")), true);\n return tree\n}\n\nfunction markStatic (\n tree,\n key,\n isOnce\n) {\n if (Array.isArray(tree)) {\n for (var i = 0; i < tree.length; i++) {\n if (tree[i] && typeof tree[i] !== 'string') {\n markStaticNode(tree[i], (key + \"_\" + i), isOnce);\n }\n }\n } else {\n markStaticNode(tree, key, isOnce);\n }\n}\n\nfunction markStaticNode (node, key, isOnce) {\n node.isStatic = true;\n node.key = key;\n node.isOnce = isOnce;\n}\n\n/* */\n\nfunction bindObjectListeners (data, value) {\n if (value) {\n if (!isPlainObject(value)) {\n process.env.NODE_ENV !== 'production' && warn(\n 'v-on without argument expects an Object value',\n this\n );\n } else {\n var on = data.on = data.on ? extend({}, data.on) : {};\n for (var key in value) {\n var existing = on[key];\n var ours = value[key];\n on[key] = existing ? [].concat(existing, ours) : ours;\n }\n }\n }\n return data\n}\n\n/* */\n\nfunction installRenderHelpers (target) {\n target._o = markOnce;\n target._n = toNumber;\n target._s = toString;\n target._l = renderList;\n target._t = renderSlot;\n target._q = looseEqual;\n target._i = looseIndexOf;\n target._m = renderStatic;\n target._f = resolveFilter;\n target._k = checkKeyCodes;\n target._b = bindObjectProps;\n target._v = createTextVNode;\n target._e = createEmptyVNode;\n target._u = resolveScopedSlots;\n target._g = bindObjectListeners;\n}\n\n/* */\n\nfunction FunctionalRenderContext (\n data,\n props,\n children,\n parent,\n Ctor\n) {\n var options = Ctor.options;\n // ensure the createElement function in functional components\n // gets a unique context - this is necessary for correct named slot check\n var contextVm;\n if (hasOwn(parent, '_uid')) {\n contextVm = Object.create(parent);\n // $flow-disable-line\n contextVm._original = parent;\n } else {\n // the context vm passed in is a functional context as well.\n // in this case we want to make sure we are able to get a hold to the\n // real context instance.\n contextVm = parent;\n // $flow-disable-line\n parent = parent._original;\n }\n var isCompiled = isTrue(options._compiled);\n var needNormalization = !isCompiled;\n\n this.data = data;\n this.props = props;\n this.children = children;\n this.parent = parent;\n this.listeners = data.on || emptyObject;\n this.injections = resolveInject(options.inject, parent);\n this.slots = function () { return resolveSlots(children, parent); };\n\n // support for compiled functional template\n if (isCompiled) {\n // exposing $options for renderStatic()\n this.$options = options;\n // pre-resolve slots for renderSlot()\n this.$slots = this.slots();\n this.$scopedSlots = data.scopedSlots || emptyObject;\n }\n\n if (options._scopeId) {\n this._c = function (a, b, c, d) {\n var vnode = createElement(contextVm, a, b, c, d, needNormalization);\n if (vnode && !Array.isArray(vnode)) {\n vnode.fnScopeId = options._scopeId;\n vnode.fnContext = parent;\n }\n return vnode\n };\n } else {\n this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };\n }\n}\n\ninstallRenderHelpers(FunctionalRenderContext.prototype);\n\nfunction createFunctionalComponent (\n Ctor,\n propsData,\n data,\n contextVm,\n children\n) {\n var options = Ctor.options;\n var props = {};\n var propOptions = options.props;\n if (isDef(propOptions)) {\n for (var key in propOptions) {\n props[key] = validateProp(key, propOptions, propsData || emptyObject);\n }\n } else {\n if (isDef(data.attrs)) { mergeProps(props, data.attrs); }\n if (isDef(data.props)) { mergeProps(props, data.props); }\n }\n\n var renderContext = new FunctionalRenderContext(\n data,\n props,\n children,\n contextVm,\n Ctor\n );\n\n var vnode = options.render.call(null, renderContext._c, renderContext);\n\n if (vnode instanceof VNode) {\n return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options)\n } else if (Array.isArray(vnode)) {\n var vnodes = normalizeChildren(vnode) || [];\n var res = new Array(vnodes.length);\n for (var i = 0; i < vnodes.length; i++) {\n res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options);\n }\n return res\n }\n}\n\nfunction cloneAndMarkFunctionalResult (vnode, data, contextVm, options) {\n // #7817 clone node before setting fnContext, otherwise if the node is reused\n // (e.g. it was from a cached normal slot) the fnContext causes named slots\n // that should not be matched to match.\n var clone = cloneVNode(vnode);\n clone.fnContext = contextVm;\n clone.fnOptions = options;\n if (data.slot) {\n (clone.data || (clone.data = {})).slot = data.slot;\n }\n return clone\n}\n\nfunction mergeProps (to, from) {\n for (var key in from) {\n to[camelize(key)] = from[key];\n }\n}\n\n/* */\n\n\n\n\n// Register the component hook to weex native render engine.\n// The hook will be triggered by native, not javascript.\n\n\n// Updates the state of the component to weex native render engine.\n\n/* */\n\n// https://github.com/Hanks10100/weex-native-directive/tree/master/component\n\n// listening on native callback\n\n/* */\n\n/* */\n\n// inline hooks to be invoked on component VNodes during patch\nvar componentVNodeHooks = {\n init: function init (\n vnode,\n hydrating,\n parentElm,\n refElm\n ) {\n if (\n vnode.componentInstance &&\n !vnode.componentInstance._isDestroyed &&\n vnode.data.keepAlive\n ) {\n // kept-alive components, treat as a patch\n var mountedNode = vnode; // work around flow\n componentVNodeHooks.prepatch(mountedNode, mountedNode);\n } else {\n var child = vnode.componentInstance = createComponentInstanceForVnode(\n vnode,\n activeInstance,\n parentElm,\n refElm\n );\n child.$mount(hydrating ? vnode.elm : undefined, hydrating);\n }\n },\n\n prepatch: function prepatch (oldVnode, vnode) {\n var options = vnode.componentOptions;\n var child = vnode.componentInstance = oldVnode.componentInstance;\n updateChildComponent(\n child,\n options.propsData, // updated props\n options.listeners, // updated listeners\n vnode, // new parent vnode\n options.children // new children\n );\n },\n\n insert: function insert (vnode) {\n var context = vnode.context;\n var componentInstance = vnode.componentInstance;\n if (!componentInstance._isMounted) {\n componentInstance._isMounted = true;\n callHook(componentInstance, 'mounted');\n }\n if (vnode.data.keepAlive) {\n if (context._isMounted) {\n // vue-router#1212\n // During updates, a kept-alive component's child components may\n // change, so directly walking the tree here may call activated hooks\n // on incorrect children. Instead we push them into a queue which will\n // be processed after the whole patch process ended.\n queueActivatedComponent(componentInstance);\n } else {\n activateChildComponent(componentInstance, true /* direct */);\n }\n }\n },\n\n destroy: function destroy (vnode) {\n var componentInstance = vnode.componentInstance;\n if (!componentInstance._isDestroyed) {\n if (!vnode.data.keepAlive) {\n componentInstance.$destroy();\n } else {\n deactivateChildComponent(componentInstance, true /* direct */);\n }\n }\n }\n};\n\nvar hooksToMerge = Object.keys(componentVNodeHooks);\n\nfunction createComponent (\n Ctor,\n data,\n context,\n children,\n tag\n) {\n if (isUndef(Ctor)) {\n return\n }\n\n var baseCtor = context.$options._base;\n\n // plain options object: turn it into a constructor\n if (isObject(Ctor)) {\n Ctor = baseCtor.extend(Ctor);\n }\n\n // if at this stage it's not a constructor or an async component factory,\n // reject.\n if (typeof Ctor !== 'function') {\n if (process.env.NODE_ENV !== 'production') {\n warn((\"Invalid Component definition: \" + (String(Ctor))), context);\n }\n return\n }\n\n // async component\n var asyncFactory;\n if (isUndef(Ctor.cid)) {\n asyncFactory = Ctor;\n Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);\n if (Ctor === undefined) {\n // return a placeholder node for async component, which is rendered\n // as a comment node but preserves all the raw information for the node.\n // the information will be used for async server-rendering and hydration.\n return createAsyncPlaceholder(\n asyncFactory,\n data,\n context,\n children,\n tag\n )\n }\n }\n\n data = data || {};\n\n // resolve constructor options in case global mixins are applied after\n // component constructor creation\n resolveConstructorOptions(Ctor);\n\n // transform component v-model data into props & events\n if (isDef(data.model)) {\n transformModel(Ctor.options, data);\n }\n\n // extract props\n var propsData = extractPropsFromVNodeData(data, Ctor, tag);\n\n // functional component\n if (isTrue(Ctor.options.functional)) {\n return createFunctionalComponent(Ctor, propsData, data, context, children)\n }\n\n // extract listeners, since these needs to be treated as\n // child component listeners instead of DOM listeners\n var listeners = data.on;\n // replace with listeners with .native modifier\n // so it gets processed during parent component patch.\n data.on = data.nativeOn;\n\n if (isTrue(Ctor.options.abstract)) {\n // abstract components do not keep anything\n // other than props & listeners & slot\n\n // work around flow\n var slot = data.slot;\n data = {};\n if (slot) {\n data.slot = slot;\n }\n }\n\n // install component management hooks onto the placeholder node\n installComponentHooks(data);\n\n // return a placeholder vnode\n var name = Ctor.options.name || tag;\n var vnode = new VNode(\n (\"vue-component-\" + (Ctor.cid) + (name ? (\"-\" + name) : '')),\n data, undefined, undefined, undefined, context,\n { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },\n asyncFactory\n );\n\n // Weex specific: invoke recycle-list optimized @render function for\n // extracting cell-slot template.\n // https://github.com/Hanks10100/weex-native-directive/tree/master/component\n /* istanbul ignore if */\n return vnode\n}\n\nfunction createComponentInstanceForVnode (\n vnode, // we know it's MountedComponentVNode but flow doesn't\n parent, // activeInstance in lifecycle state\n parentElm,\n refElm\n) {\n var options = {\n _isComponent: true,\n parent: parent,\n _parentVnode: vnode,\n _parentElm: parentElm || null,\n _refElm: refElm || null\n };\n // check inline-template render functions\n var inlineTemplate = vnode.data.inlineTemplate;\n if (isDef(inlineTemplate)) {\n options.render = inlineTemplate.render;\n options.staticRenderFns = inlineTemplate.staticRenderFns;\n }\n return new vnode.componentOptions.Ctor(options)\n}\n\nfunction installComponentHooks (data) {\n var hooks = data.hook || (data.hook = {});\n for (var i = 0; i < hooksToMerge.length; i++) {\n var key = hooksToMerge[i];\n hooks[key] = componentVNodeHooks[key];\n }\n}\n\n// transform component v-model info (value and callback) into\n// prop and event handler respectively.\nfunction transformModel (options, data) {\n var prop = (options.model && options.model.prop) || 'value';\n var event = (options.model && options.model.event) || 'input';(data.props || (data.props = {}))[prop] = data.model.value;\n var on = data.on || (data.on = {});\n if (isDef(on[event])) {\n on[event] = [data.model.callback].concat(on[event]);\n } else {\n on[event] = data.model.callback;\n }\n}\n\n/* */\n\nvar SIMPLE_NORMALIZE = 1;\nvar ALWAYS_NORMALIZE = 2;\n\n// wrapper function for providing a more flexible interface\n// without getting yelled at by flow\nfunction createElement (\n context,\n tag,\n data,\n children,\n normalizationType,\n alwaysNormalize\n) {\n if (Array.isArray(data) || isPrimitive(data)) {\n normalizationType = children;\n children = data;\n data = undefined;\n }\n if (isTrue(alwaysNormalize)) {\n normalizationType = ALWAYS_NORMALIZE;\n }\n return _createElement(context, tag, data, children, normalizationType)\n}\n\nfunction _createElement (\n context,\n tag,\n data,\n children,\n normalizationType\n) {\n if (isDef(data) && isDef((data).__ob__)) {\n process.env.NODE_ENV !== 'production' && warn(\n \"Avoid using observed data object as vnode data: \" + (JSON.stringify(data)) + \"\\n\" +\n 'Always create fresh vnode data objects in each render!',\n context\n );\n return createEmptyVNode()\n }\n // object syntax in v-bind\n if (isDef(data) && isDef(data.is)) {\n tag = data.is;\n }\n if (!tag) {\n // in case of component :is set to falsy value\n return createEmptyVNode()\n }\n // warn against non-primitive key\n if (process.env.NODE_ENV !== 'production' &&\n isDef(data) && isDef(data.key) && !isPrimitive(data.key)\n ) {\n {\n warn(\n 'Avoid using non-primitive value as key, ' +\n 'use string/number value instead.',\n context\n );\n }\n }\n // support single function children as default scoped slot\n if (Array.isArray(children) &&\n typeof children[0] === 'function'\n ) {\n data = data || {};\n data.scopedSlots = { default: children[0] };\n children.length = 0;\n }\n if (normalizationType === ALWAYS_NORMALIZE) {\n children = normalizeChildren(children);\n } else if (normalizationType === SIMPLE_NORMALIZE) {\n children = simpleNormalizeChildren(children);\n }\n var vnode, ns;\n if (typeof tag === 'string') {\n var Ctor;\n ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);\n if (config.isReservedTag(tag)) {\n // platform built-in elements\n vnode = new VNode(\n config.parsePlatformTagName(tag), data, children,\n undefined, undefined, context\n );\n } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {\n // component\n vnode = createComponent(Ctor, data, context, children, tag);\n } else {\n // unknown or unlisted namespaced elements\n // check at runtime because it may get assigned a namespace when its\n // parent normalizes children\n vnode = new VNode(\n tag, data, children,\n undefined, undefined, context\n );\n }\n } else {\n // direct component options / constructor\n vnode = createComponent(tag, data, context, children);\n }\n if (Array.isArray(vnode)) {\n return vnode\n } else if (isDef(vnode)) {\n if (isDef(ns)) { applyNS(vnode, ns); }\n if (isDef(data)) { registerDeepBindings(data); }\n return vnode\n } else {\n return createEmptyVNode()\n }\n}\n\nfunction applyNS (vnode, ns, force) {\n vnode.ns = ns;\n if (vnode.tag === 'foreignObject') {\n // use default namespace inside foreignObject\n ns = undefined;\n force = true;\n }\n if (isDef(vnode.children)) {\n for (var i = 0, l = vnode.children.length; i < l; i++) {\n var child = vnode.children[i];\n if (isDef(child.tag) && (\n isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {\n applyNS(child, ns, force);\n }\n }\n }\n}\n\n// ref #5318\n// necessary to ensure parent re-render when deep bindings like :style and\n// :class are used on slot nodes\nfunction registerDeepBindings (data) {\n if (isObject(data.style)) {\n traverse(data.style);\n }\n if (isObject(data.class)) {\n traverse(data.class);\n }\n}\n\n/* */\n\nfunction initRender (vm) {\n vm._vnode = null; // the root of the child tree\n vm._staticTrees = null; // v-once cached trees\n var options = vm.$options;\n var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree\n var renderContext = parentVnode && parentVnode.context;\n vm.$slots = resolveSlots(options._renderChildren, renderContext);\n vm.$scopedSlots = emptyObject;\n // bind the createElement fn to this instance\n // so that we get proper render context inside it.\n // args order: tag, data, children, normalizationType, alwaysNormalize\n // internal version is used by render functions compiled from templates\n vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };\n // normalization is always applied for the public version, used in\n // user-written render functions.\n vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };\n\n // $attrs & $listeners are exposed for easier HOC creation.\n // they need to be reactive so that HOCs using them are always updated\n var parentData = parentVnode && parentVnode.data;\n\n /* istanbul ignore else */\n if (process.env.NODE_ENV !== 'production') {\n defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {\n !isUpdatingChildComponent && warn(\"$attrs is readonly.\", vm);\n }, true);\n defineReactive(vm, '$listeners', options._parentListeners || emptyObject, function () {\n !isUpdatingChildComponent && warn(\"$listeners is readonly.\", vm);\n }, true);\n } else {\n defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);\n defineReactive(vm, '$listeners', options._parentListeners || emptyObject, null, true);\n }\n}\n\nfunction renderMixin (Vue) {\n // install runtime convenience helpers\n installRenderHelpers(Vue.prototype);\n\n Vue.prototype.$nextTick = function (fn) {\n return nextTick(fn, this)\n };\n\n Vue.prototype._render = function () {\n var vm = this;\n var ref = vm.$options;\n var render = ref.render;\n var _parentVnode = ref._parentVnode;\n\n // reset _rendered flag on slots for duplicate slot check\n if (process.env.NODE_ENV !== 'production') {\n for (var key in vm.$slots) {\n // $flow-disable-line\n vm.$slots[key]._rendered = false;\n }\n }\n\n if (_parentVnode) {\n vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;\n }\n\n // set parent vnode. this allows render functions to have access\n // to the data on the placeholder node.\n vm.$vnode = _parentVnode;\n // render self\n var vnode;\n try {\n vnode = render.call(vm._renderProxy, vm.$createElement);\n } catch (e) {\n handleError(e, vm, \"render\");\n // return error render result,\n // or previous vnode to prevent render error causing blank component\n /* istanbul ignore else */\n if (process.env.NODE_ENV !== 'production') {\n if (vm.$options.renderError) {\n try {\n vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);\n } catch (e) {\n handleError(e, vm, \"renderError\");\n vnode = vm._vnode;\n }\n } else {\n vnode = vm._vnode;\n }\n } else {\n vnode = vm._vnode;\n }\n }\n // return empty vnode in case the render function errored out\n if (!(vnode instanceof VNode)) {\n if (process.env.NODE_ENV !== 'production' && Array.isArray(vnode)) {\n warn(\n 'Multiple root nodes returned from render function. Render function ' +\n 'should return a single root node.',\n vm\n );\n }\n vnode = createEmptyVNode();\n }\n // set parent\n vnode.parent = _parentVnode;\n return vnode\n };\n}\n\n/* */\n\nvar uid$3 = 0;\n\nfunction initMixin (Vue) {\n Vue.prototype._init = function (options) {\n var vm = this;\n // a uid\n vm._uid = uid$3++;\n\n var startTag, endTag;\n /* istanbul ignore if */\n if (process.env.NODE_ENV !== 'production' && config.performance && mark) {\n startTag = \"vue-perf-start:\" + (vm._uid);\n endTag = \"vue-perf-end:\" + (vm._uid);\n mark(startTag);\n }\n\n // a flag to avoid this being observed\n vm._isVue = true;\n // merge options\n if (options && options._isComponent) {\n // optimize internal component instantiation\n // since dynamic options merging is pretty slow, and none of the\n // internal component options needs special treatment.\n initInternalComponent(vm, options);\n } else {\n vm.$options = mergeOptions(\n resolveConstructorOptions(vm.constructor),\n options || {},\n vm\n );\n }\n /* istanbul ignore else */\n if (process.env.NODE_ENV !== 'production') {\n initProxy(vm);\n } else {\n vm._renderProxy = vm;\n }\n // expose real self\n vm._self = vm;\n initLifecycle(vm);\n initEvents(vm);\n initRender(vm);\n callHook(vm, 'beforeCreate');\n initInjections(vm); // resolve injections before data/props\n initState(vm);\n initProvide(vm); // resolve provide after data/props\n callHook(vm, 'created');\n\n /* istanbul ignore if */\n if (process.env.NODE_ENV !== 'production' && config.performance && mark) {\n vm._name = formatComponentName(vm, false);\n mark(endTag);\n measure((\"vue \" + (vm._name) + \" init\"), startTag, endTag);\n }\n\n if (vm.$options.el) {\n vm.$mount(vm.$options.el);\n }\n };\n}\n\nfunction initInternalComponent (vm, options) {\n var opts = vm.$options = Object.create(vm.constructor.options);\n // doing this because it's faster than dynamic enumeration.\n var parentVnode = options._parentVnode;\n opts.parent = options.parent;\n opts._parentVnode = parentVnode;\n opts._parentElm = options._parentElm;\n opts._refElm = options._refElm;\n\n var vnodeComponentOptions = parentVnode.componentOptions;\n opts.propsData = vnodeComponentOptions.propsData;\n opts._parentListeners = vnodeComponentOptions.listeners;\n opts._renderChildren = vnodeComponentOptions.children;\n opts._componentTag = vnodeComponentOptions.tag;\n\n if (options.render) {\n opts.render = options.render;\n opts.staticRenderFns = options.staticRenderFns;\n }\n}\n\nfunction resolveConstructorOptions (Ctor) {\n var options = Ctor.options;\n if (Ctor.super) {\n var superOptions = resolveConstructorOptions(Ctor.super);\n var cachedSuperOptions = Ctor.superOptions;\n if (superOptions !== cachedSuperOptions) {\n // super option changed,\n // need to resolve new options.\n Ctor.superOptions = superOptions;\n // check if there are any late-modified/attached options (#4976)\n var modifiedOptions = resolveModifiedOptions(Ctor);\n // update base extend options\n if (modifiedOptions) {\n extend(Ctor.extendOptions, modifiedOptions);\n }\n options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);\n if (options.name) {\n options.components[options.name] = Ctor;\n }\n }\n }\n return options\n}\n\nfunction resolveModifiedOptions (Ctor) {\n var modified;\n var latest = Ctor.options;\n var extended = Ctor.extendOptions;\n var sealed = Ctor.sealedOptions;\n for (var key in latest) {\n if (latest[key] !== sealed[key]) {\n if (!modified) { modified = {}; }\n modified[key] = dedupe(latest[key], extended[key], sealed[key]);\n }\n }\n return modified\n}\n\nfunction dedupe (latest, extended, sealed) {\n // compare latest and sealed to ensure lifecycle hooks won't be duplicated\n // between merges\n if (Array.isArray(latest)) {\n var res = [];\n sealed = Array.isArray(sealed) ? sealed : [sealed];\n extended = Array.isArray(extended) ? extended : [extended];\n for (var i = 0; i < latest.length; i++) {\n // push original options and not sealed options to exclude duplicated options\n if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) {\n res.push(latest[i]);\n }\n }\n return res\n } else {\n return latest\n }\n}\n\nfunction Vue (options) {\n if (process.env.NODE_ENV !== 'production' &&\n !(this instanceof Vue)\n ) {\n warn('Vue is a constructor and should be called with the `new` keyword');\n }\n this._init(options);\n}\n\ninitMixin(Vue);\nstateMixin(Vue);\neventsMixin(Vue);\nlifecycleMixin(Vue);\nrenderMixin(Vue);\n\n/* */\n\nfunction initUse (Vue) {\n Vue.use = function (plugin) {\n var installedPlugins = (this._installedPlugins || (this._installedPlugins = []));\n if (installedPlugins.indexOf(plugin) > -1) {\n return this\n }\n\n // additional parameters\n var args = toArray(arguments, 1);\n args.unshift(this);\n if (typeof plugin.install === 'function') {\n plugin.install.apply(plugin, args);\n } else if (typeof plugin === 'function') {\n plugin.apply(null, args);\n }\n installedPlugins.push(plugin);\n return this\n };\n}\n\n/* */\n\nfunction initMixin$1 (Vue) {\n Vue.mixin = function (mixin) {\n this.options = mergeOptions(this.options, mixin);\n return this\n };\n}\n\n/* */\n\nfunction initExtend (Vue) {\n /**\n * Each instance constructor, including Vue, has a unique\n * cid. This enables us to create wrapped \"child\n * constructors\" for prototypal inheritance and cache them.\n */\n Vue.cid = 0;\n var cid = 1;\n\n /**\n * Class inheritance\n */\n Vue.extend = function (extendOptions) {\n extendOptions = extendOptions || {};\n var Super = this;\n var SuperId = Super.cid;\n var cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {});\n if (cachedCtors[SuperId]) {\n return cachedCtors[SuperId]\n }\n\n var name = extendOptions.name || Super.options.name;\n if (process.env.NODE_ENV !== 'production' && name) {\n validateComponentName(name);\n }\n\n var Sub = function VueComponent (options) {\n this._init(options);\n };\n Sub.prototype = Object.create(Super.prototype);\n Sub.prototype.constructor = Sub;\n Sub.cid = cid++;\n Sub.options = mergeOptions(\n Super.options,\n extendOptions\n );\n Sub['super'] = Super;\n\n // For props and computed properties, we define the proxy getters on\n // the Vue instances at extension time, on the extended prototype. This\n // avoids Object.defineProperty calls for each instance created.\n if (Sub.options.props) {\n initProps$1(Sub);\n }\n if (Sub.options.computed) {\n initComputed$1(Sub);\n }\n\n // allow further extension/mixin/plugin usage\n Sub.extend = Super.extend;\n Sub.mixin = Super.mixin;\n Sub.use = Super.use;\n\n // create asset registers, so extended classes\n // can have their private assets too.\n ASSET_TYPES.forEach(function (type) {\n Sub[type] = Super[type];\n });\n // enable recursive self-lookup\n if (name) {\n Sub.options.components[name] = Sub;\n }\n\n // keep a reference to the super options at extension time.\n // later at instantiation we can check if Super's options have\n // been updated.\n Sub.superOptions = Super.options;\n Sub.extendOptions = extendOptions;\n Sub.sealedOptions = extend({}, Sub.options);\n\n // cache constructor\n cachedCtors[SuperId] = Sub;\n return Sub\n };\n}\n\nfunction initProps$1 (Comp) {\n var props = Comp.options.props;\n for (var key in props) {\n proxy(Comp.prototype, \"_props\", key);\n }\n}\n\nfunction initComputed$1 (Comp) {\n var computed = Comp.options.computed;\n for (var key in computed) {\n defineComputed(Comp.prototype, key, computed[key]);\n }\n}\n\n/* */\n\nfunction initAssetRegisters (Vue) {\n /**\n * Create asset registration methods.\n */\n ASSET_TYPES.forEach(function (type) {\n Vue[type] = function (\n id,\n definition\n ) {\n if (!definition) {\n return this.options[type + 's'][id]\n } else {\n /* istanbul ignore if */\n if (process.env.NODE_ENV !== 'production' && type === 'component') {\n validateComponentName(id);\n }\n if (type === 'component' && isPlainObject(definition)) {\n definition.name = definition.name || id;\n definition = this.options._base.extend(definition);\n }\n if (type === 'directive' && typeof definition === 'function') {\n definition = { bind: definition, update: definition };\n }\n this.options[type + 's'][id] = definition;\n return definition\n }\n };\n });\n}\n\n/* */\n\nfunction getComponentName (opts) {\n return opts && (opts.Ctor.options.name || opts.tag)\n}\n\nfunction matches (pattern, name) {\n if (Array.isArray(pattern)) {\n return pattern.indexOf(name) > -1\n } else if (typeof pattern === 'string') {\n return pattern.split(',').indexOf(name) > -1\n } else if (isRegExp(pattern)) {\n return pattern.test(name)\n }\n /* istanbul ignore next */\n return false\n}\n\nfunction pruneCache (keepAliveInstance, filter) {\n var cache = keepAliveInstance.cache;\n var keys = keepAliveInstance.keys;\n var _vnode = keepAliveInstance._vnode;\n for (var key in cache) {\n var cachedNode = cache[key];\n if (cachedNode) {\n var name = getComponentName(cachedNode.componentOptions);\n if (name && !filter(name)) {\n pruneCacheEntry(cache, key, keys, _vnode);\n }\n }\n }\n}\n\nfunction pruneCacheEntry (\n cache,\n key,\n keys,\n current\n) {\n var cached$$1 = cache[key];\n if (cached$$1 && (!current || cached$$1.tag !== current.tag)) {\n cached$$1.componentInstance.$destroy();\n }\n cache[key] = null;\n remove(keys, key);\n}\n\nvar patternTypes = [String, RegExp, Array];\n\nvar KeepAlive = {\n name: 'keep-alive',\n abstract: true,\n\n props: {\n include: patternTypes,\n exclude: patternTypes,\n max: [String, Number]\n },\n\n created: function created () {\n this.cache = Object.create(null);\n this.keys = [];\n },\n\n destroyed: function destroyed () {\n var this$1 = this;\n\n for (var key in this$1.cache) {\n pruneCacheEntry(this$1.cache, key, this$1.keys);\n }\n },\n\n mounted: function mounted () {\n var this$1 = this;\n\n this.$watch('include', function (val) {\n pruneCache(this$1, function (name) { return matches(val, name); });\n });\n this.$watch('exclude', function (val) {\n pruneCache(this$1, function (name) { return !matches(val, name); });\n });\n },\n\n render: function render () {\n var slot = this.$slots.default;\n var vnode = getFirstComponentChild(slot);\n var componentOptions = vnode && vnode.componentOptions;\n if (componentOptions) {\n // check pattern\n var name = getComponentName(componentOptions);\n var ref = this;\n var include = ref.include;\n var exclude = ref.exclude;\n if (\n // not included\n (include && (!name || !matches(include, name))) ||\n // excluded\n (exclude && name && matches(exclude, name))\n ) {\n return vnode\n }\n\n var ref$1 = this;\n var cache = ref$1.cache;\n var keys = ref$1.keys;\n var key = vnode.key == null\n // same constructor may get registered as different local components\n // so cid alone is not enough (#3269)\n ? componentOptions.Ctor.cid + (componentOptions.tag ? (\"::\" + (componentOptions.tag)) : '')\n : vnode.key;\n if (cache[key]) {\n vnode.componentInstance = cache[key].componentInstance;\n // make current key freshest\n remove(keys, key);\n keys.push(key);\n } else {\n cache[key] = vnode;\n keys.push(key);\n // prune oldest entry\n if (this.max && keys.length > parseInt(this.max)) {\n pruneCacheEntry(cache, keys[0], keys, this._vnode);\n }\n }\n\n vnode.data.keepAlive = true;\n }\n return vnode || (slot && slot[0])\n }\n}\n\nvar builtInComponents = {\n KeepAlive: KeepAlive\n}\n\n/* */\n\nfunction initGlobalAPI (Vue) {\n // config\n var configDef = {};\n configDef.get = function () { return config; };\n if (process.env.NODE_ENV !== 'production') {\n configDef.set = function () {\n warn(\n 'Do not replace the Vue.config object, set individual fields instead.'\n );\n };\n }\n Object.defineProperty(Vue, 'config', configDef);\n\n // exposed util methods.\n // NOTE: these are not considered part of the public API - avoid relying on\n // them unless you are aware of the risk.\n Vue.util = {\n warn: warn,\n extend: extend,\n mergeOptions: mergeOptions,\n defineReactive: defineReactive\n };\n\n Vue.set = set;\n Vue.delete = del;\n Vue.nextTick = nextTick;\n\n Vue.options = Object.create(null);\n ASSET_TYPES.forEach(function (type) {\n Vue.options[type + 's'] = Object.create(null);\n });\n\n // this is used to identify the \"base\" constructor to extend all plain-object\n // components with in Weex's multi-instance scenarios.\n Vue.options._base = Vue;\n\n extend(Vue.options.components, builtInComponents);\n\n initUse(Vue);\n initMixin$1(Vue);\n initExtend(Vue);\n initAssetRegisters(Vue);\n}\n\ninitGlobalAPI(Vue);\n\nObject.defineProperty(Vue.prototype, '$isServer', {\n get: isServerRendering\n});\n\nObject.defineProperty(Vue.prototype, '$ssrContext', {\n get: function get () {\n /* istanbul ignore next */\n return this.$vnode && this.$vnode.ssrContext\n }\n});\n\n// expose FunctionalRenderContext for ssr runtime helper installation\nObject.defineProperty(Vue, 'FunctionalRenderContext', {\n value: FunctionalRenderContext\n});\n\nVue.version = '2.5.17';\n\n/* */\n\n// these are reserved for web because they are directly compiled away\n// during template compilation\nvar isReservedAttr = makeMap('style,class');\n\n// attributes that should be using props for binding\nvar acceptValue = makeMap('input,textarea,option,select,progress');\nvar mustUseProp = function (tag, type, attr) {\n return (\n (attr === 'value' && acceptValue(tag)) && type !== 'button' ||\n (attr === 'selected' && tag === 'option') ||\n (attr === 'checked' && tag === 'input') ||\n (attr === 'muted' && tag === 'video')\n )\n};\n\nvar isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');\n\nvar isBooleanAttr = makeMap(\n 'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +\n 'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +\n 'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +\n 'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +\n 'required,reversed,scoped,seamless,selected,sortable,translate,' +\n 'truespeed,typemustmatch,visible'\n);\n\nvar xlinkNS = 'http://www.w3.org/1999/xlink';\n\nvar isXlink = function (name) {\n return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink'\n};\n\nvar getXlinkProp = function (name) {\n return isXlink(name) ? name.slice(6, name.length) : ''\n};\n\nvar isFalsyAttrValue = function (val) {\n return val == null || val === false\n};\n\n/* */\n\nfunction genClassForVnode (vnode) {\n var data = vnode.data;\n var parentNode = vnode;\n var childNode = vnode;\n while (isDef(childNode.componentInstance)) {\n childNode = childNode.componentInstance._vnode;\n if (childNode && childNode.data) {\n data = mergeClassData(childNode.data, data);\n }\n }\n while (isDef(parentNode = parentNode.parent)) {\n if (parentNode && parentNode.data) {\n data = mergeClassData(data, parentNode.data);\n }\n }\n return renderClass(data.staticClass, data.class)\n}\n\nfunction mergeClassData (child, parent) {\n return {\n staticClass: concat(child.staticClass, parent.staticClass),\n class: isDef(child.class)\n ? [child.class, parent.class]\n : parent.class\n }\n}\n\nfunction renderClass (\n staticClass,\n dynamicClass\n) {\n if (isDef(staticClass) || isDef(dynamicClass)) {\n return concat(staticClass, stringifyClass(dynamicClass))\n }\n /* istanbul ignore next */\n return ''\n}\n\nfunction concat (a, b) {\n return a ? b ? (a + ' ' + b) : a : (b || '')\n}\n\nfunction stringifyClass (value) {\n if (Array.isArray(value)) {\n return stringifyArray(value)\n }\n if (isObject(value)) {\n return stringifyObject(value)\n }\n if (typeof value === 'string') {\n return value\n }\n /* istanbul ignore next */\n return ''\n}\n\nfunction stringifyArray (value) {\n var res = '';\n var stringified;\n for (var i = 0, l = value.length; i < l; i++) {\n if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') {\n if (res) { res += ' '; }\n res += stringified;\n }\n }\n return res\n}\n\nfunction stringifyObject (value) {\n var res = '';\n for (var key in value) {\n if (value[key]) {\n if (res) { res += ' '; }\n res += key;\n }\n }\n return res\n}\n\n/* */\n\nvar namespaceMap = {\n svg: 'http://www.w3.org/2000/svg',\n math: 'http://www.w3.org/1998/Math/MathML'\n};\n\nvar isHTMLTag = makeMap(\n 'html,body,base,head,link,meta,style,title,' +\n 'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +\n 'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +\n 'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +\n 's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +\n 'embed,object,param,source,canvas,script,noscript,del,ins,' +\n 'caption,col,colgroup,table,thead,tbody,td,th,tr,' +\n 'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +\n 'output,progress,select,textarea,' +\n 'details,dialog,menu,menuitem,summary,' +\n 'content,element,shadow,template,blockquote,iframe,tfoot'\n);\n\n// this map is intentionally selective, only covering SVG elements that may\n// contain child elements.\nvar isSVG = makeMap(\n 'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +\n 'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +\n 'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',\n true\n);\n\n\n\nvar isReservedTag = function (tag) {\n return isHTMLTag(tag) || isSVG(tag)\n};\n\nfunction getTagNamespace (tag) {\n if (isSVG(tag)) {\n return 'svg'\n }\n // basic support for MathML\n // note it doesn't support other MathML elements being component roots\n if (tag === 'math') {\n return 'math'\n }\n}\n\nvar unknownElementCache = Object.create(null);\nfunction isUnknownElement (tag) {\n /* istanbul ignore if */\n if (!inBrowser) {\n return true\n }\n if (isReservedTag(tag)) {\n return false\n }\n tag = tag.toLowerCase();\n /* istanbul ignore if */\n if (unknownElementCache[tag] != null) {\n return unknownElementCache[tag]\n }\n var el = document.createElement(tag);\n if (tag.indexOf('-') > -1) {\n // http://stackoverflow.com/a/28210364/1070244\n return (unknownElementCache[tag] = (\n el.constructor === window.HTMLUnknownElement ||\n el.constructor === window.HTMLElement\n ))\n } else {\n return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString()))\n }\n}\n\nvar isTextInputType = makeMap('text,number,password,search,email,tel,url');\n\n/* */\n\n/**\n * Query an element selector if it's not an element already.\n */\nfunction query (el) {\n if (typeof el === 'string') {\n var selected = document.querySelector(el);\n if (!selected) {\n process.env.NODE_ENV !== 'production' && warn(\n 'Cannot find element: ' + el\n );\n return document.createElement('div')\n }\n return selected\n } else {\n return el\n }\n}\n\n/* */\n\nfunction createElement$1 (tagName, vnode) {\n var elm = document.createElement(tagName);\n if (tagName !== 'select') {\n return elm\n }\n // false or null will remove the attribute but undefined will not\n if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) {\n elm.setAttribute('multiple', 'multiple');\n }\n return elm\n}\n\nfunction createElementNS (namespace, tagName) {\n return document.createElementNS(namespaceMap[namespace], tagName)\n}\n\nfunction createTextNode (text) {\n return document.createTextNode(text)\n}\n\nfunction createComment (text) {\n return document.createComment(text)\n}\n\nfunction insertBefore (parentNode, newNode, referenceNode) {\n parentNode.insertBefore(newNode, referenceNode);\n}\n\nfunction removeChild (node, child) {\n node.removeChild(child);\n}\n\nfunction appendChild (node, child) {\n node.appendChild(child);\n}\n\nfunction parentNode (node) {\n return node.parentNode\n}\n\nfunction nextSibling (node) {\n return node.nextSibling\n}\n\nfunction tagName (node) {\n return node.tagName\n}\n\nfunction setTextContent (node, text) {\n node.textContent = text;\n}\n\nfunction setStyleScope (node, scopeId) {\n node.setAttribute(scopeId, '');\n}\n\n\nvar nodeOps = Object.freeze({\n\tcreateElement: createElement$1,\n\tcreateElementNS: createElementNS,\n\tcreateTextNode: createTextNode,\n\tcreateComment: createComment,\n\tinsertBefore: insertBefore,\n\tremoveChild: removeChild,\n\tappendChild: appendChild,\n\tparentNode: parentNode,\n\tnextSibling: nextSibling,\n\ttagName: tagName,\n\tsetTextContent: setTextContent,\n\tsetStyleScope: setStyleScope\n});\n\n/* */\n\nvar ref = {\n create: function create (_, vnode) {\n registerRef(vnode);\n },\n update: function update (oldVnode, vnode) {\n if (oldVnode.data.ref !== vnode.data.ref) {\n registerRef(oldVnode, true);\n registerRef(vnode);\n }\n },\n destroy: function destroy (vnode) {\n registerRef(vnode, true);\n }\n}\n\nfunction registerRef (vnode, isRemoval) {\n var key = vnode.data.ref;\n if (!isDef(key)) { return }\n\n var vm = vnode.context;\n var ref = vnode.componentInstance || vnode.elm;\n var refs = vm.$refs;\n if (isRemoval) {\n if (Array.isArray(refs[key])) {\n remove(refs[key], ref);\n } else if (refs[key] === ref) {\n refs[key] = undefined;\n }\n } else {\n if (vnode.data.refInFor) {\n if (!Array.isArray(refs[key])) {\n refs[key] = [ref];\n } else if (refs[key].indexOf(ref) < 0) {\n // $flow-disable-line\n refs[key].push(ref);\n }\n } else {\n refs[key] = ref;\n }\n }\n}\n\n/**\n * Virtual DOM patching algorithm based on Snabbdom by\n * Simon Friis Vindum (@paldepind)\n * Licensed under the MIT License\n * https://github.com/paldepind/snabbdom/blob/master/LICENSE\n *\n * modified by Evan You (@yyx990803)\n *\n * Not type-checking this because this file is perf-critical and the cost\n * of making flow understand it is not worth it.\n */\n\nvar emptyNode = new VNode('', {}, []);\n\nvar hooks = ['create', 'activate', 'update', 'remove', 'destroy'];\n\nfunction sameVnode (a, b) {\n return (\n a.key === b.key && (\n (\n a.tag === b.tag &&\n a.isComment === b.isComment &&\n isDef(a.data) === isDef(b.data) &&\n sameInputType(a, b)\n ) || (\n isTrue(a.isAsyncPlaceholder) &&\n a.asyncFactory === b.asyncFactory &&\n isUndef(b.asyncFactory.error)\n )\n )\n )\n}\n\nfunction sameInputType (a, b) {\n if (a.tag !== 'input') { return true }\n var i;\n var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;\n var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;\n return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)\n}\n\nfunction createKeyToOldIdx (children, beginIdx, endIdx) {\n var i, key;\n var map = {};\n for (i = beginIdx; i <= endIdx; ++i) {\n key = children[i].key;\n if (isDef(key)) { map[key] = i; }\n }\n return map\n}\n\nfunction createPatchFunction (backend) {\n var i, j;\n var cbs = {};\n\n var modules = backend.modules;\n var nodeOps = backend.nodeOps;\n\n for (i = 0; i < hooks.length; ++i) {\n cbs[hooks[i]] = [];\n for (j = 0; j < modules.length; ++j) {\n if (isDef(modules[j][hooks[i]])) {\n cbs[hooks[i]].push(modules[j][hooks[i]]);\n }\n }\n }\n\n function emptyNodeAt (elm) {\n return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm)\n }\n\n function createRmCb (childElm, listeners) {\n function remove () {\n if (--remove.listeners === 0) {\n removeNode(childElm);\n }\n }\n remove.listeners = listeners;\n return remove\n }\n\n function removeNode (el) {\n var parent = nodeOps.parentNode(el);\n // element may have already been removed due to v-html / v-text\n if (isDef(parent)) {\n nodeOps.removeChild(parent, el);\n }\n }\n\n function isUnknownElement$$1 (vnode, inVPre) {\n return (\n !inVPre &&\n !vnode.ns &&\n !(\n config.ignoredElements.length &&\n config.ignoredElements.some(function (ignore) {\n return isRegExp(ignore)\n ? ignore.test(vnode.tag)\n : ignore === vnode.tag\n })\n ) &&\n config.isUnknownElement(vnode.tag)\n )\n }\n\n var creatingElmInVPre = 0;\n\n function createElm (\n vnode,\n insertedVnodeQueue,\n parentElm,\n refElm,\n nested,\n ownerArray,\n index\n ) {\n if (isDef(vnode.elm) && isDef(ownerArray)) {\n // This vnode was used in a previous render!\n // now it's used as a new node, overwriting its elm would cause\n // potential patch errors down the road when it's used as an insertion\n // reference node. Instead, we clone the node on-demand before creating\n // associated DOM element for it.\n vnode = ownerArray[index] = cloneVNode(vnode);\n }\n\n vnode.isRootInsert = !nested; // for transition enter check\n if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {\n return\n }\n\n var data = vnode.data;\n var children = vnode.children;\n var tag = vnode.tag;\n if (isDef(tag)) {\n if (process.env.NODE_ENV !== 'production') {\n if (data && data.pre) {\n creatingElmInVPre++;\n }\n if (isUnknownElement$$1(vnode, creatingElmInVPre)) {\n warn(\n 'Unknown custom element: <' + tag + '> - did you ' +\n 'register the component correctly? For recursive components, ' +\n 'make sure to provide the \"name\" option.',\n vnode.context\n );\n }\n }\n\n vnode.elm = vnode.ns\n ? nodeOps.createElementNS(vnode.ns, tag)\n : nodeOps.createElement(tag, vnode);\n setScope(vnode);\n\n /* istanbul ignore if */\n {\n createChildren(vnode, children, insertedVnodeQueue);\n if (isDef(data)) {\n invokeCreateHooks(vnode, insertedVnodeQueue);\n }\n insert(parentElm, vnode.elm, refElm);\n }\n\n if (process.env.NODE_ENV !== 'production' && data && data.pre) {\n creatingElmInVPre--;\n }\n } else if (isTrue(vnode.isComment)) {\n vnode.elm = nodeOps.createComment(vnode.text);\n insert(parentElm, vnode.elm, refElm);\n } else {\n vnode.elm = nodeOps.createTextNode(vnode.text);\n insert(parentElm, vnode.elm, refElm);\n }\n }\n\n function createComponent (vnode, insertedVnodeQueue, parentElm, refElm) {\n var i = vnode.data;\n if (isDef(i)) {\n var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;\n if (isDef(i = i.hook) && isDef(i = i.init)) {\n i(vnode, false /* hydrating */, parentElm, refElm);\n }\n // after calling the init hook, if the vnode is a child component\n // it should've created a child instance and mounted it. the child\n // component also has set the placeholder vnode's elm.\n // in that case we can just return the element and be done.\n if (isDef(vnode.componentInstance)) {\n initComponent(vnode, insertedVnodeQueue);\n if (isTrue(isReactivated)) {\n reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);\n }\n return true\n }\n }\n }\n\n function initComponent (vnode, insertedVnodeQueue) {\n if (isDef(vnode.data.pendingInsert)) {\n insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert);\n vnode.data.pendingInsert = null;\n }\n vnode.elm = vnode.componentInstance.$el;\n if (isPatchable(vnode)) {\n invokeCreateHooks(vnode, insertedVnodeQueue);\n setScope(vnode);\n } else {\n // empty component root.\n // skip all element-related modules except for ref (#3455)\n registerRef(vnode);\n // make sure to invoke the insert hook\n insertedVnodeQueue.push(vnode);\n }\n }\n\n function reactivateComponent (vnode, insertedVnodeQueue, parentElm, refElm) {\n var i;\n // hack for #4339: a reactivated component with inner transition\n // does not trigger because the inner node's created hooks are not called\n // again. It's not ideal to involve module-specific logic in here but\n // there doesn't seem to be a better way to do it.\n var innerNode = vnode;\n while (innerNode.componentInstance) {\n innerNode = innerNode.componentInstance._vnode;\n if (isDef(i = innerNode.data) && isDef(i = i.transition)) {\n for (i = 0; i < cbs.activate.length; ++i) {\n cbs.activate[i](emptyNode, innerNode);\n }\n insertedVnodeQueue.push(innerNode);\n break\n }\n }\n // unlike a newly created component,\n // a reactivated keep-alive component doesn't insert itself\n insert(parentElm, vnode.elm, refElm);\n }\n\n function insert (parent, elm, ref$$1) {\n if (isDef(parent)) {\n if (isDef(ref$$1)) {\n if (ref$$1.parentNode === parent) {\n nodeOps.insertBefore(parent, elm, ref$$1);\n }\n } else {\n nodeOps.appendChild(parent, elm);\n }\n }\n }\n\n function createChildren (vnode, children, insertedVnodeQueue) {\n if (Array.isArray(children)) {\n if (process.env.NODE_ENV !== 'production') {\n checkDuplicateKeys(children);\n }\n for (var i = 0; i < children.length; ++i) {\n createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i);\n }\n } else if (isPrimitive(vnode.text)) {\n nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));\n }\n }\n\n function isPatchable (vnode) {\n while (vnode.componentInstance) {\n vnode = vnode.componentInstance._vnode;\n }\n return isDef(vnode.tag)\n }\n\n function invokeCreateHooks (vnode, insertedVnodeQueue) {\n for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {\n cbs.create[i$1](emptyNode, vnode);\n }\n i = vnode.data.hook; // Reuse variable\n if (isDef(i)) {\n if (isDef(i.create)) { i.create(emptyNode, vnode); }\n if (isDef(i.insert)) { insertedVnodeQueue.push(vnode); }\n }\n }\n\n // set scope id attribute for scoped CSS.\n // this is implemented as a special case to avoid the overhead\n // of going through the normal attribute patching process.\n function setScope (vnode) {\n var i;\n if (isDef(i = vnode.fnScopeId)) {\n nodeOps.setStyleScope(vnode.elm, i);\n } else {\n var ancestor = vnode;\n while (ancestor) {\n if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {\n nodeOps.setStyleScope(vnode.elm, i);\n }\n ancestor = ancestor.parent;\n }\n }\n // for slot content they should also get the scopeId from the host instance.\n if (isDef(i = activeInstance) &&\n i !== vnode.context &&\n i !== vnode.fnContext &&\n isDef(i = i.$options._scopeId)\n ) {\n nodeOps.setStyleScope(vnode.elm, i);\n }\n }\n\n function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {\n for (; startIdx <= endIdx; ++startIdx) {\n createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx);\n }\n }\n\n function invokeDestroyHook (vnode) {\n var i, j;\n var data = vnode.data;\n if (isDef(data)) {\n if (isDef(i = data.hook) && isDef(i = i.destroy)) { i(vnode); }\n for (i = 0; i < cbs.destroy.length; ++i) { cbs.destroy[i](vnode); }\n }\n if (isDef(i = vnode.children)) {\n for (j = 0; j < vnode.children.length; ++j) {\n invokeDestroyHook(vnode.children[j]);\n }\n }\n }\n\n function removeVnodes (parentElm, vnodes, startIdx, endIdx) {\n for (; startIdx <= endIdx; ++startIdx) {\n var ch = vnodes[startIdx];\n if (isDef(ch)) {\n if (isDef(ch.tag)) {\n removeAndInvokeRemoveHook(ch);\n invokeDestroyHook(ch);\n } else { // Text node\n removeNode(ch.elm);\n }\n }\n }\n }\n\n function removeAndInvokeRemoveHook (vnode, rm) {\n if (isDef(rm) || isDef(vnode.data)) {\n var i;\n var listeners = cbs.remove.length + 1;\n if (isDef(rm)) {\n // we have a recursively passed down rm callback\n // increase the listeners count\n rm.listeners += listeners;\n } else {\n // directly removing\n rm = createRmCb(vnode.elm, listeners);\n }\n // recursively invoke hooks on child component root node\n if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) {\n removeAndInvokeRemoveHook(i, rm);\n }\n for (i = 0; i < cbs.remove.length; ++i) {\n cbs.remove[i](vnode, rm);\n }\n if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) {\n i(vnode, rm);\n } else {\n rm();\n }\n } else {\n removeNode(vnode.elm);\n }\n }\n\n function updateChildren (parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) {\n var oldStartIdx = 0;\n var newStartIdx = 0;\n var oldEndIdx = oldCh.length - 1;\n var oldStartVnode = oldCh[0];\n var oldEndVnode = oldCh[oldEndIdx];\n var newEndIdx = newCh.length - 1;\n var newStartVnode = newCh[0];\n var newEndVnode = newCh[newEndIdx];\n var oldKeyToIdx, idxInOld, vnodeToMove, refElm;\n\n // removeOnly is a special flag used only by \n // to ensure removed elements stay in correct relative positions\n // during leaving transitions\n var canMove = !removeOnly;\n\n if (process.env.NODE_ENV !== 'production') {\n checkDuplicateKeys(newCh);\n }\n\n while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {\n if (isUndef(oldStartVnode)) {\n oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left\n } else if (isUndef(oldEndVnode)) {\n oldEndVnode = oldCh[--oldEndIdx];\n } else if (sameVnode(oldStartVnode, newStartVnode)) {\n patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue);\n oldStartVnode = oldCh[++oldStartIdx];\n newStartVnode = newCh[++newStartIdx];\n } else if (sameVnode(oldEndVnode, newEndVnode)) {\n patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue);\n oldEndVnode = oldCh[--oldEndIdx];\n newEndVnode = newCh[--newEndIdx];\n } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right\n patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue);\n canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));\n oldStartVnode = oldCh[++oldStartIdx];\n newEndVnode = newCh[--newEndIdx];\n } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left\n patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue);\n canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);\n oldEndVnode = oldCh[--oldEndIdx];\n newStartVnode = newCh[++newStartIdx];\n } else {\n if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); }\n idxInOld = isDef(newStartVnode.key)\n ? oldKeyToIdx[newStartVnode.key]\n : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);\n if (isUndef(idxInOld)) { // New element\n createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);\n } else {\n vnodeToMove = oldCh[idxInOld];\n if (sameVnode(vnodeToMove, newStartVnode)) {\n patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);\n oldCh[idxInOld] = undefined;\n canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);\n } else {\n // same key but different element. treat as new element\n createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);\n }\n }\n newStartVnode = newCh[++newStartIdx];\n }\n }\n if (oldStartIdx > oldEndIdx) {\n refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;\n addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);\n } else if (newStartIdx > newEndIdx) {\n removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);\n }\n }\n\n function checkDuplicateKeys (children) {\n var seenKeys = {};\n for (var i = 0; i < children.length; i++) {\n var vnode = children[i];\n var key = vnode.key;\n if (isDef(key)) {\n if (seenKeys[key]) {\n warn(\n (\"Duplicate keys detected: '\" + key + \"'. This may cause an update error.\"),\n vnode.context\n );\n } else {\n seenKeys[key] = true;\n }\n }\n }\n }\n\n function findIdxInOld (node, oldCh, start, end) {\n for (var i = start; i < end; i++) {\n var c = oldCh[i];\n if (isDef(c) && sameVnode(node, c)) { return i }\n }\n }\n\n function patchVnode (oldVnode, vnode, insertedVnodeQueue, removeOnly) {\n if (oldVnode === vnode) {\n return\n }\n\n var elm = vnode.elm = oldVnode.elm;\n\n if (isTrue(oldVnode.isAsyncPlaceholder)) {\n if (isDef(vnode.asyncFactory.resolved)) {\n hydrate(oldVnode.elm, vnode, insertedVnodeQueue);\n } else {\n vnode.isAsyncPlaceholder = true;\n }\n return\n }\n\n // reuse element for static trees.\n // note we only do this if the vnode is cloned -\n // if the new node is not cloned it means the render functions have been\n // reset by the hot-reload-api and we need to do a proper re-render.\n if (isTrue(vnode.isStatic) &&\n isTrue(oldVnode.isStatic) &&\n vnode.key === oldVnode.key &&\n (isTrue(vnode.isCloned) || isTrue(vnode.isOnce))\n ) {\n vnode.componentInstance = oldVnode.componentInstance;\n return\n }\n\n var i;\n var data = vnode.data;\n if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) {\n i(oldVnode, vnode);\n }\n\n var oldCh = oldVnode.children;\n var ch = vnode.children;\n if (isDef(data) && isPatchable(vnode)) {\n for (i = 0; i < cbs.update.length; ++i) { cbs.update[i](oldVnode, vnode); }\n if (isDef(i = data.hook) && isDef(i = i.update)) { i(oldVnode, vnode); }\n }\n if (isUndef(vnode.text)) {\n if (isDef(oldCh) && isDef(ch)) {\n if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }\n } else if (isDef(ch)) {\n if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }\n addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);\n } else if (isDef(oldCh)) {\n removeVnodes(elm, oldCh, 0, oldCh.length - 1);\n } else if (isDef(oldVnode.text)) {\n nodeOps.setTextContent(elm, '');\n }\n } else if (oldVnode.text !== vnode.text) {\n nodeOps.setTextContent(elm, vnode.text);\n }\n if (isDef(data)) {\n if (isDef(i = data.hook) && isDef(i = i.postpatch)) { i(oldVnode, vnode); }\n }\n }\n\n function invokeInsertHook (vnode, queue, initial) {\n // delay insert hooks for component root nodes, invoke them after the\n // element is really inserted\n if (isTrue(initial) && isDef(vnode.parent)) {\n vnode.parent.data.pendingInsert = queue;\n } else {\n for (var i = 0; i < queue.length; ++i) {\n queue[i].data.hook.insert(queue[i]);\n }\n }\n }\n\n var hydrationBailed = false;\n // list of modules that can skip create hook during hydration because they\n // are already rendered on the client or has no need for initialization\n // Note: style is excluded because it relies on initial clone for future\n // deep updates (#7063).\n var isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');\n\n // Note: this is a browser-only function so we can assume elms are DOM nodes.\n function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {\n var i;\n var tag = vnode.tag;\n var data = vnode.data;\n var children = vnode.children;\n inVPre = inVPre || (data && data.pre);\n vnode.elm = elm;\n\n if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {\n vnode.isAsyncPlaceholder = true;\n return true\n }\n // assert node match\n if (process.env.NODE_ENV !== 'production') {\n if (!assertNodeMatch(elm, vnode, inVPre)) {\n return false\n }\n }\n if (isDef(data)) {\n if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); }\n if (isDef(i = vnode.componentInstance)) {\n // child component. it should have hydrated its own tree.\n initComponent(vnode, insertedVnodeQueue);\n return true\n }\n }\n if (isDef(tag)) {\n if (isDef(children)) {\n // empty element, allow client to pick up and populate children\n if (!elm.hasChildNodes()) {\n createChildren(vnode, children, insertedVnodeQueue);\n } else {\n // v-html and domProps: innerHTML\n if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {\n if (i !== elm.innerHTML) {\n /* istanbul ignore if */\n if (process.env.NODE_ENV !== 'production' &&\n typeof console !== 'undefined' &&\n !hydrationBailed\n ) {\n hydrationBailed = true;\n console.warn('Parent: ', elm);\n console.warn('server innerHTML: ', i);\n console.warn('client innerHTML: ', elm.innerHTML);\n }\n return false\n }\n } else {\n // iterate and compare children lists\n var childrenMatch = true;\n var childNode = elm.firstChild;\n for (var i$1 = 0; i$1 < children.length; i$1++) {\n if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue, inVPre)) {\n childrenMatch = false;\n break\n }\n childNode = childNode.nextSibling;\n }\n // if childNode is not null, it means the actual childNodes list is\n // longer than the virtual children list.\n if (!childrenMatch || childNode) {\n /* istanbul ignore if */\n if (process.env.NODE_ENV !== 'production' &&\n typeof console !== 'undefined' &&\n !hydrationBailed\n ) {\n hydrationBailed = true;\n console.warn('Parent: ', elm);\n console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);\n }\n return false\n }\n }\n }\n }\n if (isDef(data)) {\n var fullInvoke = false;\n for (var key in data) {\n if (!isRenderedModule(key)) {\n fullInvoke = true;\n invokeCreateHooks(vnode, insertedVnodeQueue);\n break\n }\n }\n if (!fullInvoke && data['class']) {\n // ensure collecting deps for deep class bindings for future updates\n traverse(data['class']);\n }\n }\n } else if (elm.data !== vnode.text) {\n elm.data = vnode.text;\n }\n return true\n }\n\n function assertNodeMatch (node, vnode, inVPre) {\n if (isDef(vnode.tag)) {\n return vnode.tag.indexOf('vue-component') === 0 || (\n !isUnknownElement$$1(vnode, inVPre) &&\n vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())\n )\n } else {\n return node.nodeType === (vnode.isComment ? 8 : 3)\n }\n }\n\n return function patch (oldVnode, vnode, hydrating, removeOnly, parentElm, refElm) {\n if (isUndef(vnode)) {\n if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }\n return\n }\n\n var isInitialPatch = false;\n var insertedVnodeQueue = [];\n\n if (isUndef(oldVnode)) {\n // empty mount (likely as component), create new root element\n isInitialPatch = true;\n createElm(vnode, insertedVnodeQueue, parentElm, refElm);\n } else {\n var isRealElement = isDef(oldVnode.nodeType);\n if (!isRealElement && sameVnode(oldVnode, vnode)) {\n // patch existing root node\n patchVnode(oldVnode, vnode, insertedVnodeQueue, removeOnly);\n } else {\n if (isRealElement) {\n // mounting to a real element\n // check if this is server-rendered content and if we can perform\n // a successful hydration.\n if (oldVnode.nodeType === 1 && oldVnode.hasAttribute(SSR_ATTR)) {\n oldVnode.removeAttribute(SSR_ATTR);\n hydrating = true;\n }\n if (isTrue(hydrating)) {\n if (hydrate(oldVnode, vnode, insertedVnodeQueue)) {\n invokeInsertHook(vnode, insertedVnodeQueue, true);\n return oldVnode\n } else if (process.env.NODE_ENV !== 'production') {\n warn(\n 'The client-side rendered virtual DOM tree is not matching ' +\n 'server-rendered content. This is likely caused by incorrect ' +\n 'HTML markup, for example nesting block-level elements inside ' +\n '
, or missing
. Bailing hydration and performing ' +\n 'full client-side render.'\n );\n }\n }\n // either not server-rendered, or hydration failed.\n // create an empty node and replace it\n oldVnode = emptyNodeAt(oldVnode);\n }\n\n // replacing existing element\n var oldElm = oldVnode.elm;\n var parentElm$1 = nodeOps.parentNode(oldElm);\n\n // create new node\n createElm(\n vnode,\n insertedVnodeQueue,\n // extremely rare edge case: do not insert if old element is in a\n // leaving transition. Only happens when combining transition +\n // keep-alive + HOCs. (#4590)\n oldElm._leaveCb ? null : parentElm$1,\n nodeOps.nextSibling(oldElm)\n );\n\n // update parent placeholder node element, recursively\n if (isDef(vnode.parent)) {\n var ancestor = vnode.parent;\n var patchable = isPatchable(vnode);\n while (ancestor) {\n for (var i = 0; i < cbs.destroy.length; ++i) {\n cbs.destroy[i](ancestor);\n }\n ancestor.elm = vnode.elm;\n if (patchable) {\n for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {\n cbs.create[i$1](emptyNode, ancestor);\n }\n // #6513\n // invoke insert hooks that may have been merged by create hooks.\n // e.g. for directives that uses the \"inserted\" hook.\n var insert = ancestor.data.hook.insert;\n if (insert.merged) {\n // start at index 1 to avoid re-invoking component mounted hook\n for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {\n insert.fns[i$2]();\n }\n }\n } else {\n registerRef(ancestor);\n }\n ancestor = ancestor.parent;\n }\n }\n\n // destroy old node\n if (isDef(parentElm$1)) {\n removeVnodes(parentElm$1, [oldVnode], 0, 0);\n } else if (isDef(oldVnode.tag)) {\n invokeDestroyHook(oldVnode);\n }\n }\n }\n\n invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch);\n return vnode.elm\n }\n}\n\n/* */\n\nvar directives = {\n create: updateDirectives,\n update: updateDirectives,\n destroy: function unbindDirectives (vnode) {\n updateDirectives(vnode, emptyNode);\n }\n}\n\nfunction updateDirectives (oldVnode, vnode) {\n if (oldVnode.data.directives || vnode.data.directives) {\n _update(oldVnode, vnode);\n }\n}\n\nfunction _update (oldVnode, vnode) {\n var isCreate = oldVnode === emptyNode;\n var isDestroy = vnode === emptyNode;\n var oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context);\n var newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context);\n\n var dirsWithInsert = [];\n var dirsWithPostpatch = [];\n\n var key, oldDir, dir;\n for (key in newDirs) {\n oldDir = oldDirs[key];\n dir = newDirs[key];\n if (!oldDir) {\n // new directive, bind\n callHook$1(dir, 'bind', vnode, oldVnode);\n if (dir.def && dir.def.inserted) {\n dirsWithInsert.push(dir);\n }\n } else {\n // existing directive, update\n dir.oldValue = oldDir.value;\n callHook$1(dir, 'update', vnode, oldVnode);\n if (dir.def && dir.def.componentUpdated) {\n dirsWithPostpatch.push(dir);\n }\n }\n }\n\n if (dirsWithInsert.length) {\n var callInsert = function () {\n for (var i = 0; i < dirsWithInsert.length; i++) {\n callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode);\n }\n };\n if (isCreate) {\n mergeVNodeHook(vnode, 'insert', callInsert);\n } else {\n callInsert();\n }\n }\n\n if (dirsWithPostpatch.length) {\n mergeVNodeHook(vnode, 'postpatch', function () {\n for (var i = 0; i < dirsWithPostpatch.length; i++) {\n callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);\n }\n });\n }\n\n if (!isCreate) {\n for (key in oldDirs) {\n if (!newDirs[key]) {\n // no longer present, unbind\n callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy);\n }\n }\n }\n}\n\nvar emptyModifiers = Object.create(null);\n\nfunction normalizeDirectives$1 (\n dirs,\n vm\n) {\n var res = Object.create(null);\n if (!dirs) {\n // $flow-disable-line\n return res\n }\n var i, dir;\n for (i = 0; i < dirs.length; i++) {\n dir = dirs[i];\n if (!dir.modifiers) {\n // $flow-disable-line\n dir.modifiers = emptyModifiers;\n }\n res[getRawDirName(dir)] = dir;\n dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);\n }\n // $flow-disable-line\n return res\n}\n\nfunction getRawDirName (dir) {\n return dir.rawName || ((dir.name) + \".\" + (Object.keys(dir.modifiers || {}).join('.')))\n}\n\nfunction callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {\n var fn = dir.def && dir.def[hook];\n if (fn) {\n try {\n fn(vnode.elm, dir, vnode, oldVnode, isDestroy);\n } catch (e) {\n handleError(e, vnode.context, (\"directive \" + (dir.name) + \" \" + hook + \" hook\"));\n }\n }\n}\n\nvar baseModules = [\n ref,\n directives\n]\n\n/* */\n\nfunction updateAttrs (oldVnode, vnode) {\n var opts = vnode.componentOptions;\n if (isDef(opts) && opts.Ctor.options.inheritAttrs === false) {\n return\n }\n if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) {\n return\n }\n var key, cur, old;\n var elm = vnode.elm;\n var oldAttrs = oldVnode.data.attrs || {};\n var attrs = vnode.data.attrs || {};\n // clone observed objects, as the user probably wants to mutate it\n if (isDef(attrs.__ob__)) {\n attrs = vnode.data.attrs = extend({}, attrs);\n }\n\n for (key in attrs) {\n cur = attrs[key];\n old = oldAttrs[key];\n if (old !== cur) {\n setAttr(elm, key, cur);\n }\n }\n // #4391: in IE9, setting type can reset value for input[type=radio]\n // #6666: IE/Edge forces progress value down to 1 before setting a max\n /* istanbul ignore if */\n if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {\n setAttr(elm, 'value', attrs.value);\n }\n for (key in oldAttrs) {\n if (isUndef(attrs[key])) {\n if (isXlink(key)) {\n elm.removeAttributeNS(xlinkNS, getXlinkProp(key));\n } else if (!isEnumeratedAttr(key)) {\n elm.removeAttribute(key);\n }\n }\n }\n}\n\nfunction setAttr (el, key, value) {\n if (el.tagName.indexOf('-') > -1) {\n baseSetAttr(el, key, value);\n } else if (isBooleanAttr(key)) {\n // set attribute for blank value\n // e.g. \n if (isFalsyAttrValue(value)) {\n el.removeAttribute(key);\n } else {\n // technically allowfullscreen is a boolean attribute for