docsify.js

(function () {
  /**
   * Create a cached version of a pure function.
   */
  function cached(fn) {
    var cache = Object.create(null);
    return function (str) {
      var key = isPrimitive(str) ? str : JSON.stringify(str);
      var hit = cache[key];
      return hit || (cache[key] = fn(str))
    }
  }
  
  /**
   * Hyphenate a camelCase string.
   */
  var hyphenate = cached(function (str) {
    return str.replace(/([A-Z])/g, function (m) { return '-' + m.toLowerCase(); })
  });
  
  var hasOwn = Object.prototype.hasOwnProperty;
  
  /**
   * Simple Object.assign polyfill
   */
  var merge =
    Object.assign ||
    function (to) {
      var arguments$1 = arguments;
  
      for (var i = 1; i < arguments.length; i++) {
        var from = Object(arguments$1[i]);
  
        for (var key in from) {
          if (hasOwn.call(from, key)) {
            to[key] = from[key];
          }
        }
      }
  
      return to
    };
  
  /**
   * Check if value is primitive
   */
  function isPrimitive(value) {
    return typeof value === 'string' || typeof value === 'number'
  }
  
  /**
   * Perform no operation.
   */
  function noop() {}
  
  /**
   * Check if value is function
   */
  function isFn(obj) {
    return typeof obj === 'function'
  }
  
  function config () {
    var config = merge(
      {
        el: '#app',
        repo: '',
        maxLevel: 6,
        subMaxLevel: 0,
        loadSidebar: null,
        loadNavbar: null,
        homepage: 'README.md',
        coverpage: '',
        basePath: '',
        auto2top: false,
        name: '',
        themeColor: '',
        nameLink: window.location.pathname,
        autoHeader: false,
        executeScript: null,
        noEmoji: false,
        ga: '',
        ext: '.md',
        mergeNavbar: false,
        formatUpdated: '',
        externalLinkTarget: '_blank',
        routerMode: 'hash',
        noCompileLinks: [],
        relativePath: false
      },
      window.$docsify
    );
  
    var script =
      document.currentScript ||
      [].slice
        .call(document.getElementsByTagName('script'))
        .filter(function (n) { return /docsify\./.test(n.src); })[0];
  
    if (script) {
      for (var prop in config) {
        if (hasOwn.call(config, prop)) {
          var val = script.getAttribute('data-' + hyphenate(prop));
  
          if (isPrimitive(val)) {
            config[prop] = val === '' ? true : val;
          }
        }
      }
  
      if (config.loadSidebar === true) {
        config.loadSidebar = '_sidebar' + config.ext;
      }
      if (config.loadNavbar === true) {
        config.loadNavbar = '_navbar' + config.ext;
      }
      if (config.coverpage === true) {
        config.coverpage = '_coverpage' + config.ext;
      }
      if (config.repo === true) {
        config.repo = '';
      }
      if (config.name === true) {
        config.name = '';
      }
    }
  
    window.$docsify = config;
  
    return config
  }
  
  function initLifecycle(vm) {
    var hooks = [
      'init',
      'mounted',
      'beforeEach',
      'afterEach',
      'doneEach',
      'ready'
    ];
  
    vm._hooks = {};
    vm._lifecycle = {};
    hooks.forEach(function (hook) {
      var arr = (vm._hooks[hook] = []);
      vm._lifecycle[hook] = function (fn) { return arr.push(fn); };
    });
  }
  
  function callHook(vm, hook, data, next) {
    if ( next === void 0 ) next = noop;
  
    var queue = vm._hooks[hook];
  
    var step = function (index) {
      var hook = queue[index];
      if (index >= queue.length) {
        next(data);
      } else if (typeof hook === 'function') {
        if (hook.length === 2) {
          hook(data, function (result) {
            data = result;
            step(index + 1);
          });
        } else {
          var result = hook(data);
          data = result === undefined ? data : result;
          step(index + 1);
        }
      } else {
        step(index + 1);
      }
    };
  
    step(0);
  }
  
  var inBrowser = !false;
  
  var isMobile = inBrowser && document.body.clientWidth <= 600;
  
  /**
   * @see https://github.com/MoOx/pjax/blob/master/lib/is-supported.js
   */
  var supportsPushState =
    inBrowser &&
    (function () {
      // Borrowed wholesale from https://github.com/defunkt/jquery-pjax
      return (
        window.history &&
        window.history.pushState &&
        window.history.replaceState &&
        // PushState isn’t reliable on iOS until 5.
        !navigator.userAgent.match(
          /((iPod|iPhone|iPad).+\bOS\s+[1-4]\D|WebApps\/.+CFNetwork)/
        )
      )
    })();
  
  var cacheNode = {};
  
  /**
   * Get Node
   * @param  {String|Element} el
   * @param  {Boolean} noCache
   * @return {Element}
   */
  function getNode(el, noCache) {
    if ( noCache === void 0 ) noCache = false;
  
    if (typeof el === 'string') {
      if (typeof window.Vue !== 'undefined') {
        return find(el)
      }
      el = noCache ? find(el) : cacheNode[el] || (cacheNode[el] = find(el));
    }
  
    return el
  }
  
  var $ = inBrowser && document;
  
  var body = inBrowser && $.body;
  
  var head = inBrowser && $.head;
  
  /**
   * Find element
   * @example
   * find('nav') => document.querySelector('nav')
   * find(nav, 'a') => nav.querySelector('a')
   */
  function find(el, node) {
    return node ? el.querySelector(node) : $.querySelector(el)
  }
  
  /**
   * Find all elements
   * @example
   * findAll('a') => [].slice.call(document.querySelectorAll('a'))
   * findAll(nav, 'a') => [].slice.call(nav.querySelectorAll('a'))
   */
  function findAll(el, node) {
    return [].slice.call(
      node ? el.querySelectorAll(node) : $.querySelectorAll(el)
    )
  }
  
  function create(node, tpl) {
    node = $.createElement(node);
    if (tpl) {
      node.innerHTML = tpl;
    }
    return node
  }
  
  function appendTo(target, el) {
    return target.appendChild(el)
  }
  
  function before(target, el) {
    return target.insertBefore(el, target.children[0])
  }
  
  function on(el, type, handler) {
    isFn(type) ?
      window.addEventListener(el, type) :
      el.addEventListener(type, handler);
  }
  
  function off(el, type, handler) {
    isFn(type) ?
      window.removeEventListener(el, type) :
      el.removeEventListener(type, handler);
  }
  
  /**
   * Toggle class
   *
   * @example
   * toggleClass(el, 'active') => el.classList.toggle('active')
   * toggleClass(el, 'add', 'active') => el.classList.add('active')
   */
  function toggleClass(el, type, val) {
    el && el.classList[val ? type : 'toggle'](val || type);
  }
  
  function style(content) {
    appendTo(head, create('style', content));
  }
  
  
  var dom = Object.freeze({
    getNode: getNode,
    $: $,
    body: body,
    head: head,
    find: find,
    findAll: findAll,
    create: create,
    appendTo: appendTo,
    before: before,
    on: on,
    off: off,
    toggleClass: toggleClass,
    style: style
  });
  
  /**
   * Render github corner
   * @param  {Object} data
   * @return {String}
   */
  function corner(data) {
    if (!data) {
      return ''
    }
    if (!/\/\//.test(data)) {
      data = 'https://github.com/' + data;
    }
    data = data.replace(/^git\+/, '');
  
    return (
      "<a href=\"" + data + "\" class=\"github-corner\" aria-label=\"View source on Github\">" +
      '<svg viewBox="0 0 250 250" aria-hidden="true">' +
      '<path d="M0,0 L115,115 L130,115 L142,142 L250,250 L250,0 Z"></path>' +
      '<path d="M128.3,109.0 C113.8,99.7 119.0,89.6 119.0,89.6 C122.0,82.7 120.5,78.6 120.5,78.6 C119.2,72.0 123.4,76.3 123.4,76.3 C127.3,80.9 125.5,87.3 125.5,87.3 C122.9,97.6 130.6,101.9 134.4,103.2" fill="currentColor" style="transform-origin: 130px 106px;" class="octo-arm"></path>' +
      '<path d="M115.0,115.0 C114.9,115.1 118.7,116.5 119.8,115.4 L133.7,101.6 C136.9,99.2 139.9,98.4 142.2,98.6 C133.8,88.0 127.5,74.4 143.8,58.0 C148.5,53.4 154.0,51.2 159.7,51.0 C160.3,49.4 163.2,43.6 171.4,40.1 C171.4,40.1 176.1,42.5 178.8,56.2 C183.1,58.6 187.2,61.8 190.9,65.4 C194.5,69.0 197.7,73.2 200.1,77.6 C213.8,80.2 216.3,84.9 216.3,84.9 C212.7,93.1 206.9,96.0 205.4,96.6 C205.1,102.4 203.0,107.8 198.3,112.5 C181.9,128.9 168.3,122.5 157.7,114.1 C157.9,116.9 156.7,120.9 152.7,124.9 L141.0,136.5 C139.8,137.7 141.6,141.9 141.8,141.8 Z" fill="currentColor" class="octo-body"></path>' +
      '</svg>' +
      '</a>'
    )
  }
  
  /**
   * Render main content
   */
  function main(config) {
    var aside =
      '<button class="sidebar-toggle">' +
      '<div class="sidebar-toggle-button">' +
      '<span></span><span></span><span></span>' +
      '</div>' +
      '</button>' +
      '<aside class="sidebar">' +
      (config.name ?
        ("<h1 class=\"app-name\"><a class=\"app-name-link\" data-nosearch>" + (config.logo ?
            ("<img alt=" + (config.name) + " src=" + (config.logo) + ">") :
            config.name) + "</a></h1>") :
        '') +
      '<div class="sidebar-nav"><!--sidebar--></div>' +
      '</aside>';
  
    return (
      (isMobile ? (aside + "<main>") : ("<main>" + aside)) +
      '<section class="content">' +
      '<article class="markdown-section" id="main"><!--main--></article>' +
      '</section>' +
      '</main>'
    )
  }
  
  /**
   * Cover Page
   */
  function cover() {
    var SL = ', 100%, 85%';
    var bgc =
      'linear-gradient(to left bottom, ' +
      "hsl(" + (Math.floor(Math.random() * 255) + SL) + ") 0%," +
      "hsl(" + (Math.floor(Math.random() * 255) + SL) + ") 100%)";
  
    return (
      "<section class=\"cover show\" style=\"background: " + bgc + "\">" +
      '<div class="cover-main"><!--cover--></div>' +
      '<div class="mask"></div>' +
      '</section>'
    )
  }
  
  /**
   * Render tree
   * @param  {Array} tree
   * @param  {String} tpl
   * @return {String}
   */
  function tree(toc, tpl) {
    if ( tpl === void 0 ) tpl = '<ul class="app-sub-sidebar">{inner}</ul>';
  
    if (!toc || !toc.length) {
      return ''
    }
    var innerHTML = '';
    toc.forEach(function (node) {
      innerHTML += "<li><a class=\"section-link\" href=\"" + (node.slug) + "\">" + (node.title) + "</a></li>";
      if (node.children) {
        innerHTML += tree(node.children, tpl);
      }
    });
    return tpl.replace('{inner}', innerHTML)
  }
  
  function helper(className, content) {
    return ("<p class=\"" + className + "\">" + (content.slice(5).trim()) + "</p>")
  }
  
  function theme(color) {
    return ("<style>:root{--theme-color: " + color + ";}</style>")
  }
  
  var barEl;
  var timeId;
  
  /**
   * Init progress component
   */
  function init() {
    var div = create('div');
  
    div.classList.add('progress');
    appendTo(body, div);
    barEl = div;
  }
  /**
   * Render progress bar
   */
  function progressbar (ref) {
    var loaded = ref.loaded;
    var total = ref.total;
    var step = ref.step;
  
    var num;
  
    !barEl && init();
  
    if (step) {
      num = parseInt(barEl.style.width || 0, 10) + step;
      num = num > 80 ? 80 : num;
    } else {
      num = Math.floor(loaded / total * 100);
    }
  
    barEl.style.opacity = 1;
    barEl.style.width = num >= 95 ? '100%' : num + '%';
  
    if (num >= 95) {
      clearTimeout(timeId);
      timeId = setTimeout(function (_) {
        barEl.style.opacity = 0;
        barEl.style.width = '0%';
      }, 200);
    }
  }
  
  var cache = {};
  
  /**
   * Simple ajax get
   * @param {string} url
   * @param {boolean} [hasBar=false] has progress bar
   * @return { then(resolve, reject), abort }
   */
  function get(url, hasBar, headers) {
    if ( hasBar === void 0 ) hasBar = false;
    if ( headers === void 0 ) headers = {};
  
    var xhr = new XMLHttpRequest();
    var on = function () {
      xhr.addEventListener.apply(xhr, arguments);
    };
    var cached$$1 = cache[url];
  
    if (cached$$1) {
      return {then: function (cb) { return cb(cached$$1.content, cached$$1.opt); }, abort: noop}
    }
  
    xhr.open('GET', url);
    for (var i in headers) {
      if (hasOwn.call(headers, i)) {
        xhr.setRequestHeader(i, headers[i]);
      }
    }
    xhr.send();
  
    return {
      then: function (success, error) {
        if ( error === void 0 ) error = noop;
  
        if (hasBar) {
          var id = setInterval(
            function (_) { return progressbar({
                step: Math.floor(Math.random() * 5 + 1)
              }); },
            500
          );
  
          on('progress', progressbar);
          on('loadend', function (evt) {
            progressbar(evt);
            clearInterval(id);
          });
        }
  
        on('error', error);
        on('load', function (ref) {
          var target = ref.target;
  
          if (target.status >= 400) {
            error(target);
          } else {
            var result = (cache[url] = {
              content: target.response,
              opt: {
                updatedAt: xhr.getResponseHeader('last-modified')
              }
            });
  
            success(result.content, result.opt);
          }
        });
      },
      abort: function (_) { return xhr.readyState !== 4 && xhr.abort(); }
    }
  }
  
  function replaceVar(block, color) {
    block.innerHTML = block.innerHTML.replace(
      /var\(\s*--theme-color.*?\)/g,
      color
    );
  }
  
  function cssVars (color) {
    // Variable support
    if (window.CSS && window.CSS.supports && window.CSS.supports('(--v:red)')) {
      return
    }
  
    var styleBlocks = findAll('style:not(.inserted),link');
    [].forEach.call(styleBlocks, function (block) {
      if (block.nodeName === 'STYLE') {
        replaceVar(block, color);
      } else if (block.nodeName === 'LINK') {
        var href = block.getAttribute('href');
  
        if (!/\.css$/.test(href)) {
          return
        }
  
        get(href).then(function (res) {
          var style$$1 = create('style', res);
  
          head.appendChild(style$$1);
          replaceVar(style$$1, color);
        });
      }
    });
  }
  
  var RGX = /([^{]*?)\w(?=\})/g;
  
  var dict = {
    YYYY: 'getFullYear',
    YY: 'getYear',
    MM: function (d) {
      return d.getMonth() + 1;
    },
    DD: 'getDate',
    HH: 'getHours',
    mm: 'getMinutes',
    ss: 'getSeconds'
  };
  
  function tinydate (str) {
    var parts=[], offset=0;
    str.replace(RGX, function (key, _, idx) {
      // save preceding string
      parts.push(str.substring(offset, idx - 1));
      offset = idx += key.length + 1;
      // save function
      parts.push(function(d){
        return ('00' + (typeof dict[key]==='string' ? d[dict[key]]() : dict[key](d))).slice(-key.length);
      });
    });
  
    if (offset !== str.length) {
      parts.push(str.substring(offset));
    }
  
    return function (arg) {
      var out='', i=0, d=arg||new Date();
      for (; i<parts.length; i++) {
        out += (typeof parts[i]==='string') ? parts[i] : parts[i](d);
      }
      return out;
    };
  }
  
  var commonjsGlobal = typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
  
  
  
  
  
  function createCommonjsModule(fn, module) {
    return module = { exports: {} }, fn(module, module.exports), module.exports;
  }
  
  var marked = createCommonjsModule(function (module, exports) {
  /**
   * marked - a markdown parser
   * Copyright (c) 2011-2018, Christopher Jeffrey. (MIT Licensed)
   * https://github.com/markedjs/marked
   */
  
  (function(root) {
  var block = {
    newline: /^\n+/,
    code: /^( {4}[^\n]+\n*)+/,
    fences: noop,
    hr: /^ {0,3}((?:- *){3,}|(?:_ *){3,}|(?:\* *){3,})(?:\n+|$)/,
    heading: /^ *(#{1,6}) *([^\n]+?) *(?:#+ *)?(?:\n+|$)/,
    nptable: noop,
    blockquote: /^( {0,3}> ?(paragraph|[^\n]*)(?:\n|$))+/,
    list: /^( *)(bull) [\s\S]+?(?:hr|def|\n{2,}(?! )(?!\1bull )\n*|\s*$)/,
    html: '^ {0,3}(?:' // optional indentation
      + '<(script|pre|style)[\\s>][\\s\\S]*?(?:</\\1>[^\\n]*\\n+|$)' // (1)
      + '|comment[^\\n]*(\\n+|$)' // (2)
      + '|<\\?[\\s\\S]*?\\?>\\n*' // (3)
      + '|<![A-Z][\\s\\S]*?>\\n*' // (4)
      + '|<!\\[CDATA\\[[\\s\\S]*?\\]\\]>\\n*' // (5)
      + '|</?(tag)(?: +|\\n|/?>)[\\s\\S]*?(?:\\n{2,}|$)' // (6)
      + '|<(?!script|pre|style)([a-z][\\w-]*)(?:attribute)*? */?>(?=\\h*\\n)[\\s\\S]*?(?:\\n{2,}|$)' // (7) open tag
      + '|</(?!script|pre|style)[a-z][\\w-]*\\s*>(?=\\h*\\n)[\\s\\S]*?(?:\\n{2,}|$)' // (7) closing tag
      + ')',
    def: /^ {0,3}\[(label)\]: *\n? *<?([^\s>]+)>?(?:(?: +\n? *| *\n *)(title))? *(?:\n+|$)/,
    table: noop,
    lheading: /^([^\n]+)\n *(=|-){2,} *(?:\n+|$)/,
    paragraph: /^([^\n]+(?:\n(?!hr|heading|lheading| {0,3}>|<\/?(?:tag)(?: +|\n|\/?>)|<(?:script|pre|style|!--))[^\n]+)*)/,
    text: /^[^\n]+/
  };
  
  block._label = /(?!\s*\])(?:\\[\[\]]|[^\[\]])+/;
  block._title = /(?:"(?:\\"?|[^"\\])*"|'[^'\n]*(?:\n[^'\n]+)*\n?'|\([^()]*\))/;
  block.def = edit(block.def)
    .replace('label', block._label)
    .replace('title', block._title)
    .getRegex();
  
  block.bullet = /(?:[*+-]|\d+\.)/;
  block.item = /^( *)(bull) [^\n]*(?:\n(?!\1bull )[^\n]*)*/;
  block.item = edit(block.item, 'gm')
    .replace(/bull/g, block.bullet)
    .getRegex();
  
  block.list = edit(block.list)
    .replace(/bull/g, block.bullet)
    .replace('hr', '\\n+(?=\\1?(?:(?:- *){3,}|(?:_ *){3,}|(?:\\* *){3,})(?:\\n+|$))')
    .replace('def', '\\n+(?=' + block.def.source + ')')
    .getRegex();
  
  block._tag = 'address|article|aside|base|basefont|blockquote|body|caption'
    + '|center|col|colgroup|dd|details|dialog|dir|div|dl|dt|fieldset|figcaption'
    + '|figure|footer|form|frame|frameset|h[1-6]|head|header|hr|html|iframe'
    + '|legend|li|link|main|menu|menuitem|meta|nav|noframes|ol|optgroup|option'
    + '|p|param|section|source|summary|table|tbody|td|tfoot|th|thead|title|tr'
    + '|track|ul';
  block._comment = /<!--(?!-?>)[\s\S]*?-->/;
  block.html = edit(block.html, 'i')
    .replace('comment', block._comment)
    .replace('tag', block._tag)
    .replace('attribute', / +[a-zA-Z:_][\w.:-]*(?: *= *"[^"\n]*"| *= *'[^'\n]*'| *= *[^\s"'=<>`]+)?/)
    .getRegex();
  
  block.paragraph = edit(block.paragraph)
    .replace('hr', block.hr)
    .replace('heading', block.heading)
    .replace('lheading', block.lheading)
    .replace('tag', block._tag) // pars can be interrupted by type (6) html blocks
    .getRegex();
  
  block.blockquote = edit(block.blockquote)
    .replace('paragraph', block.paragraph)
    .getRegex();
  
  /**
   * Normal Block Grammar
   */
  
  block.normal = merge({}, block);
  
  /**
   * GFM Block Grammar
   */
  
  block.gfm = merge({}, block.normal, {
    fences: /^ *(`{3,}|~{3,})[ \.]*(\S+)? *\n([\s\S]*?)\n? *\1 *(?:\n+|$)/,
    paragraph: /^/,
    heading: /^ *(#{1,6}) +([^\n]+?) *#* *(?:\n+|$)/
  });
  
  block.gfm.paragraph = edit(block.paragraph)
    .replace('(?!', '(?!'
      + block.gfm.fences.source.replace('\\1', '\\2') + '|'
      + block.list.source.replace('\\1', '\\3') + '|')
    .getRegex();
  
  /**
   * GFM + Tables Block Grammar
   */
  
  block.tables = merge({}, block.gfm, {
    nptable: /^ *([^|\n ].*\|.*)\n *([-:]+ *\|[-| :]*)(?:\n((?:.*[^>\n ].*(?:\n|$))*)\n*|$)/,
    table: /^ *\|(.+)\n *\|?( *[-:]+[-| :]*)(?:\n((?: *[^>\n ].*(?:\n|$))*)\n*|$)/
  });
  
  /**
   * Pedantic grammar
   */
  
  block.pedantic = merge({}, block.normal, {
    html: edit(
      '^ *(?:comment *(?:\\n|\\s*$)'
      + '|<(tag)[\\s\\S]+?</\\1> *(?:\\n{2,}|\\s*$)' // closed tag
      + '|<tag(?:"[^"]*"|\'[^\']*\'|\\s[^\'"/>\\s]*)*?/?> *(?:\\n{2,}|\\s*$))')
      .replace('comment', block._comment)
      .replace(/tag/g, '(?!(?:'
        + 'a|em|strong|small|s|cite|q|dfn|abbr|data|time|code|var|samp|kbd|sub'
        + '|sup|i|b|u|mark|ruby|rt|rp|bdi|bdo|span|br|wbr|ins|del|img)'
        + '\\b)\\w+(?!:|[^\\w\\s@]*@)\\b')
      .getRegex(),
    def: /^ *\[([^\]]+)\]: *<?([^\s>]+)>?(?: +(["(][^\n]+[")]))? *(?:\n+|$)/
  });
  
  /**
   * Block Lexer
   */
  
  function Lexer(options) {
    this.tokens = [];
    this.tokens.links = Object.create(null);
    this.options = options || marked.defaults;
    this.rules = block.normal;
  
    if (this.options.pedantic) {
      this.rules = block.pedantic;
    } else if (this.options.gfm) {
      if (this.options.tables) {
        this.rules = block.tables;
      } else {
        this.rules = block.gfm;
      }
    }
  }
  
  /**
   * Expose Block Rules
   */
  
  Lexer.rules = block;
  
  /**
   * Static Lex Method
   */
  
  Lexer.lex = function(src, options) {
    var lexer = new Lexer(options);
    return lexer.lex(src);
  };
  
  /**
   * Preprocessing
   */
  
  Lexer.prototype.lex = function(src) {
    src = src
      .replace(/\r\n|\r/g, '\n')
      .replace(/\t/g, '    ')
      .replace(/\u00a0/g, ' ')
      .replace(/\u2424/g, '\n');
  
    return this.token(src, true);
  };
  
  /**
   * Lexing
   */
  
  Lexer.prototype.token = function(src, top) {
    var this$1 = this;
  
    src = src.replace(/^ +$/gm, '');
    var next,
        loose,
        cap,
        bull,
        b,
        item,
        listStart,
        listItems,
        t,
        space,
        i,
        tag,
        l,
        isordered,
        istask,
        ischecked;
  
    while (src) {
      // newline
      if (cap = this$1.rules.newline.exec(src)) {
        src = src.substring(cap[0].length);
        if (cap[0].length > 1) {
          this$1.tokens.push({
            type: 'space'
          });
        }
      }
  
      // code
      if (cap = this$1.rules.code.exec(src)) {
        src = src.substring(cap[0].length);
        cap = cap[0].replace(/^ {4}/gm, '');
        this$1.tokens.push({
          type: 'code',
          text: !this$1.options.pedantic
            ? rtrim(cap, '\n')
            : cap
        });
        continue;
      }
  
      // fences (gfm)
      if (cap = this$1.rules.fences.exec(src)) {
        src = src.substring(cap[0].length);
        this$1.tokens.push({
          type: 'code',
          lang: cap[2],
          text: cap[3] || ''
        });
        continue;
      }
  
      // heading
      if (cap = this$1.rules.heading.exec(src)) {
        src = src.substring(cap[0].length);
        this$1.tokens.push({
          type: 'heading',
          depth: cap[1].length,
          text: cap[2]
        });
        continue;
      }
  
      // table no leading pipe (gfm)
      if (top && (cap = this$1.rules.nptable.exec(src))) {
        item = {
          type: 'table',
          header: splitCells(cap[1].replace(/^ *| *\| *$/g, '')),
          align: cap[2].replace(/^ *|\| *$/g, '').split(/ *\| */),
          cells: cap[3] ? cap[3].replace(/\n$/, '').split('\n') : []
        };
  
        if (item.header.length === item.align.length) {
          src = src.substring(cap[0].length);
  
          for (i = 0; i < item.align.length; i++) {
            if (/^ *-+: *$/.test(item.align[i])) {
              item.align[i] = 'right';
            } else if (/^ *:-+: *$/.test(item.align[i])) {
              item.align[i] = 'center';
            } else if (/^ *:-+ *$/.test(item.align[i])) {
              item.align[i] = 'left';
            } else {
              item.align[i] = null;
            }
          }
  
          for (i = 0; i < item.cells.length; i++) {
            item.cells[i] = splitCells(item.cells[i], item.header.length);
          }
  
          this$1.tokens.push(item);
  
          continue;
        }
      }
  
      // hr
      if (cap = this$1.rules.hr.exec(src)) {
        src = src.substring(cap[0].length);
        this$1.tokens.push({
          type: 'hr'
        });
        continue;
      }
  
      // blockquote
      if (cap = this$1.rules.blockquote.exec(src)) {
        src = src.substring(cap[0].length);
  
        this$1.tokens.push({
          type: 'blockquote_start'
        });
  
        cap = cap[0].replace(/^ *> ?/gm, '');
  
        // Pass `top` to keep the current
        // "toplevel" state. This is exactly
        // how markdown.pl works.
        this$1.token(cap, top);
  
        this$1.tokens.push({
          type: 'blockquote_end'
        });
  
        continue;
      }
  
      // list
      if (cap = this$1.rules.list.exec(src)) {
        src = src.substring(cap[0].length);
        bull = cap[2];
        isordered = bull.length > 1;
  
        listStart = {
          type: 'list_start',
          ordered: isordered,
          start: isordered ? +bull : '',
          loose: false
        };
  
        this$1.tokens.push(listStart);
  
        // Get each top-level item.
        cap = cap[0].match(this$1.rules.item);
  
        listItems = [];
        next = false;
        l = cap.length;
        i = 0;
  
        for (; i < l; i++) {
          item = cap[i];
  
          // Remove the list item's bullet
          // so it is seen as the next token.
          space = item.length;
          item = item.replace(/^ *([*+-]|\d+\.) +/, '');
  
          // Outdent whatever the
          // list item contains. Hacky.
          if (~item.indexOf('\n ')) {
            space -= item.length;
            item = !this$1.options.pedantic
              ? item.replace(new RegExp('^ {1,' + space + '}', 'gm'), '')
              : item.replace(/^ {1,4}/gm, '');
          }
  
          // Determine whether the next list item belongs here.
          // Backpedal if it does not belong in this list.
          if (this$1.options.smartLists && i !== l - 1) {
            b = block.bullet.exec(cap[i + 1])[0];
            if (bull !== b && !(bull.length > 1 && b.length > 1)) {
              src = cap.slice(i + 1).join('\n') + src;
              i = l - 1;
            }
          }
  
          // Determine whether item is loose or not.
          // Use: /(^|\n)(?! )[^\n]+\n\n(?!\s*$)/
          // for discount behavior.
          loose = next || /\n\n(?!\s*$)/.test(item);
          if (i !== l - 1) {
            next = item.charAt(item.length - 1) === '\n';
            if (!loose) { loose = next; }
          }
  
          if (loose) {
            listStart.loose = true;
          }
  
          // Check for task list items
          istask = /^\[[ xX]\] /.test(item);
          ischecked = undefined;
          if (istask) {
            ischecked = item[1] !== ' ';
            item = item.replace(/^\[[ xX]\] +/, '');
          }
  
          t = {
            type: 'list_item_start',
            task: istask,
            checked: ischecked,
            loose: loose
          };
  
          listItems.push(t);
          this$1.tokens.push(t);
  
          // Recurse.
          this$1.token(item, false);
  
          this$1.tokens.push({
            type: 'list_item_end'
          });
        }
  
        if (listStart.loose) {
          l = listItems.length;
          i = 0;
          for (; i < l; i++) {
            listItems[i].loose = true;
          }
        }
  
        this$1.tokens.push({
          type: 'list_end'
        });
  
        continue;
      }
  
      // html
      if (cap = this$1.rules.html.exec(src)) {
        src = src.substring(cap[0].length);
        this$1.tokens.push({
          type: this$1.options.sanitize
            ? 'paragraph'
            : 'html',
          pre: !this$1.options.sanitizer
            && (cap[1] === 'pre' || cap[1] === 'script' || cap[1] === 'style'),
          text: cap[0]
        });
        continue;
      }
  
      // def
      if (top && (cap = this$1.rules.def.exec(src))) {
        src = src.substring(cap[0].length);
        if (cap[3]) { cap[3] = cap[3].substring(1, cap[3].length - 1); }
        tag = cap[1].toLowerCase().replace(/\s+/g, ' ');
        if (!this$1.tokens.links[tag]) {
          this$1.tokens.links[tag] = {
            href: cap[2],
            title: cap[3]
          };
        }
        continue;
      }
  
      // table (gfm)
      if (top && (cap = this$1.rules.table.exec(src))) {
        item = {
          type: 'table',
          header: splitCells(cap[1].replace(/^ *| *\| *$/g, '')),
          align: cap[2].replace(/^ *|\| *$/g, '').split(/ *\| */),
          cells: cap[3] ? cap[3].replace(/(?: *\| *)?\n$/, '').split('\n') : []
        };
  
        if (item.header.length === item.align.length) {
          src = src.substring(cap[0].length);
  
          for (i = 0; i < item.align.length; i++) {
            if (/^ *-+: *$/.test(item.align[i])) {
              item.align[i] = 'right';
            } else if (/^ *:-+: *$/.test(item.align[i])) {
              item.align[i] = 'center';
            } else if (/^ *:-+ *$/.test(item.align[i])) {
              item.align[i] = 'left';
            } else {
              item.align[i] = null;
            }
          }
  
          for (i = 0; i < item.cells.length; i++) {
            item.cells[i] = splitCells(
              item.cells[i].replace(/^ *\| *| *\| *$/g, ''),
              item.header.length);
          }
  
          this$1.tokens.push(item);
  
          continue;
        }
      }
  
      // lheading
      if (cap = this$1.rules.lheading.exec(src)) {
        src = src.substring(cap[0].length);
        this$1.tokens.push({
          type: 'heading',
          depth: cap[2] === '=' ? 1 : 2,
          text: cap[1]
        });
        continue;
      }
  
      // top-level paragraph
      if (top && (cap = this$1.rules.paragraph.exec(src))) {
        src = src.substring(cap[0].length);
        this$1.tokens.push({
          type: 'paragraph',
          text: cap[1].charAt(cap[1].length - 1) === '\n'
            ? cap[1].slice(0, -1)
            : cap[1]
        });
        continue;
      }
  
      // text
      if (cap = this$1.rules.text.exec(src)) {
        // Top-level should never reach here.
        src = src.substring(cap[0].length);
        this$1.tokens.push({
          type: 'text',
          text: cap[0]
        });
        continue;
      }
  
      if (src) {
        throw new Error('Infinite loop on byte: ' + src.charCodeAt(0));
      }
    }
  
    return this.tokens;
  };
  
  /**
   * Inline-Level Grammar
   */
  
  var inline = {
    escape: /^\\([!"#$%&'()*+,\-./:;<=>?@\[\]\\^_`{|}~])/,
    autolink: /^<(scheme:[^\s\x00-\x1f<>]*|email)>/,
    url: noop,
    tag: '^comment'
      + '|^</[a-zA-Z][\\w:-]*\\s*>' // self-closing tag
      + '|^<[a-zA-Z][\\w-]*(?:attribute)*?\\s*/?>' // open tag
      + '|^<\\?[\\s\\S]*?\\?>' // processing instruction, e.g. <?php ?>
      + '|^<![a-zA-Z]+\\s[\\s\\S]*?>' // declaration, e.g. <!DOCTYPE html>
      + '|^<!\\[CDATA\\[[\\s\\S]*?\\]\\]>', // CDATA section
    link: /^!?\[(label)\]\(href(?:\s+(title))?\s*\)/,
    reflink: /^!?\[(label)\]\[(?!\s*\])((?:\\[\[\]]?|[^\[\]\\])+)\]/,
    nolink: /^!?\[(?!\s*\])((?:\[[^\[\]]*\]|\\[\[\]]|[^\[\]])*)\](?:\[\])?/,
    strong: /^__([^\s])__(?!_)|^\*\*([^\s])\*\*(?!\*)|^__([^\s][\s\S]*?[^\s])__(?!_)|^\*\*([^\s][\s\S]*?[^\s])\*\*(?!\*)/,
    em: /^_([^\s_])_(?!_)|^\*([^\s*"<\[])\*(?!\*)|^_([^\s][\s\S]*?[^\s_])_(?!_)|^_([^\s_][\s\S]*?[^\s])_(?!_)|^\*([^\s"<\[][\s\S]*?[^\s*])\*(?!\*)|^\*([^\s*"<\[][\s\S]*?[^\s])\*(?!\*)/,
    code: /^(`+)([^`]|[^`][\s\S]*?[^`])\1(?!`)/,
    br: /^( {2,}|\\)\n(?!\s*$)/,
    del: noop,
    text: /^(`+|[^`])[\s\S]*?(?=[\\<!\[`*]|\b_| {2,}\n|$)/
  };
  
  inline._escapes = /\\([!"#$%&'()*+,\-./:;<=>?@\[\]\\^_`{|}~])/g;
  
  inline._scheme = /[a-zA-Z][a-zA-Z0-9+.-]{1,31}/;
  inline._email = /[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])?)+(?![-_])/;
  inline.autolink = edit(inline.autolink)
    .replace('scheme', inline._scheme)
    .replace('email', inline._email)
    .getRegex();
  
  inline._attribute = /\s+[a-zA-Z:_][\w.:-]*(?:\s*=\s*"[^"]*"|\s*=\s*'[^']*'|\s*=\s*[^\s"'=<>`]+)?/;
  
  inline.tag = edit(inline.tag)
    .replace('comment', block._comment)
    .replace('attribute', inline._attribute)
    .getRegex();
  
  inline._label = /(?:\[[^\[\]]*\]|\\[\[\]]?|`[^`]*`|[^\[\]\\])*?/;
  inline._href = /\s*(<(?:\\[<>]?|[^\s<>\\])*>|(?:\\[()]?|\([^\s\x00-\x1f\\]*\)|[^\s\x00-\x1f()\\])*?)/;
  inline._title = /"(?:\\"?|[^"\\])*"|'(?:\\'?|[^'\\])*'|\((?:\\\)?|[^)\\])*\)/;
  
  inline.link = edit(inline.link)
    .replace('label', inline._label)
    .replace('href', inline._href)
    .replace('title', inline._title)
    .getRegex();
  
  inline.reflink = edit(inline.reflink)
    .replace('label', inline._label)
    .getRegex();
  
  /**
   * Normal Inline Grammar
   */
  
  inline.normal = merge({}, inline);
  
  /**
   * Pedantic Inline Grammar
   */
  
  inline.pedantic = merge({}, inline.normal, {
    strong: /^__(?=\S)([\s\S]*?\S)__(?!_)|^\*\*(?=\S)([\s\S]*?\S)\*\*(?!\*)/,
    em: /^_(?=\S)([\s\S]*?\S)_(?!_)|^\*(?=\S)([\s\S]*?\S)\*(?!\*)/,
    link: edit(/^!?\[(label)\]\((.*?)\)/)
      .replace('label', inline._label)
      .getRegex(),
    reflink: edit(/^!?\[(label)\]\s*\[([^\]]*)\]/)
      .replace('label', inline._label)
      .getRegex()
  });
  
  /**
   * GFM Inline Grammar
   */
  
  inline.gfm = merge({}, inline.normal, {
    escape: edit(inline.escape).replace('])', '~|])').getRegex(),
    _extended_email: /[A-Za-z0-9._+-]+(@)[a-zA-Z0-9-_]+(?:\.[a-zA-Z0-9-_]*[a-zA-Z0-9])+(?![-_])/,
    url: /^((?:ftp|https?):\/\/|www\.)(?:[a-zA-Z0-9\-]+\.?)+[^\s<]*|^email/,
    _backpedal: /(?:[^?!.,:;*_~()&]+|\([^)]*\)|&(?![a-zA-Z0-9]+;$)|[?!.,:;*_~)]+(?!$))+/,
    del: /^~+(?=\S)([\s\S]*?\S)~+/,
    text: edit(inline.text)
      .replace(']|', '~]|')
      .replace('|$', '|https?://|ftp://|www\\.|[a-zA-Z0-9.!#$%&\'*+/=?^_`{\\|}~-]+@|$')
      .getRegex()
  });
  
  inline.gfm.url = edit(inline.gfm.url)
    .replace('email', inline.gfm._extended_email)
    .getRegex();
  /**
   * GFM + Line Breaks Inline Grammar
   */
  
  inline.breaks = merge({}, inline.gfm, {
    br: edit(inline.br).replace('{2,}', '*').getRegex(),
    text: edit(inline.gfm.text).replace('{2,}', '*').getRegex()
  });
  
  /**
   * Inline Lexer & Compiler
   */
  
  function InlineLexer(links, options) {
    this.options = options || marked.defaults;
    this.links = links;
    this.rules = inline.normal;
    this.renderer = this.options.renderer || new Renderer();
    this.renderer.options = this.options;
  
    if (!this.links) {
      throw new Error('Tokens array requires a `links` property.');
    }
  
    if (this.options.pedantic) {
      this.rules = inline.pedantic;
    } else if (this.options.gfm) {
      if (this.options.breaks) {
        this.rules = inline.breaks;
      } else {
        this.rules = inline.gfm;
      }
    }
  }
  
  /**
   * Expose Inline Rules
   */
  
  InlineLexer.rules = inline;
  
  /**
   * Static Lexing/Compiling Method
   */
  
  InlineLexer.output = function(src, links, options) {
    var inline = new InlineLexer(links, options);
    return inline.output(src);
  };
  
  /**
   * Lexing/Compiling
   */
  
  InlineLexer.prototype.output = function(src) {
    var this$1 = this;
  
    var out = '',
        link,
        text,
        href,
        title,
        cap,
        prevCapZero;
  
    while (src) {
      // escape
      if (cap = this$1.rules.escape.exec(src)) {
        src = src.substring(cap[0].length);
        out += cap[1];
        continue;
      }
  
      // autolink
      if (cap = this$1.rules.autolink.exec(src)) {
        src = src.substring(cap[0].length);
        if (cap[2] === '@') {
          text = escape(this$1.mangle(cap[1]));
          href = 'mailto:' + text;
        } else {
          text = escape(cap[1]);
          href = text;
        }
        out += this$1.renderer.link(href, null, text);
        continue;
      }
  
      // url (gfm)
      if (!this$1.inLink && (cap = this$1.rules.url.exec(src))) {
        if (cap[2] === '@') {
          text = escape(cap[0]);
          href = 'mailto:' + text;
        } else {
          // do extended autolink path validation
          do {
            prevCapZero = cap[0];
            cap[0] = this$1.rules._backpedal.exec(cap[0])[0];
          } while (prevCapZero !== cap[0]);
          text = escape(cap[0]);
          if (cap[1] === 'www.') {
            href = 'http://' + text;
          } else {
            href = text;
          }
        }
        src = src.substring(cap[0].length);
        out += this$1.renderer.link(href, null, text);
        continue;
      }
  
      // tag
      if (cap = this$1.rules.tag.exec(src)) {
        if (!this$1.inLink && /^<a /i.test(cap[0])) {
          this$1.inLink = true;
        } else if (this$1.inLink && /^<\/a>/i.test(cap[0])) {
          this$1.inLink = false;
        }
        if (!this$1.inRawBlock && /^<(pre|code|kbd|script)(\s|>)/i.test(cap[0])) {
          this$1.inRawBlock = true;
        } else if (this$1.inRawBlock && /^<\/(pre|code|kbd|script)(\s|>)/i.test(cap[0])) {
          this$1.inRawBlock = false;
        }
  
        src = src.substring(cap[0].length);
        out += this$1.options.sanitize
          ? this$1.options.sanitizer
            ? this$1.options.sanitizer(cap[0])
            : escape(cap[0])
          : cap[0];
        continue;
      }
  
      // link
      if (cap = this$1.rules.link.exec(src)) {
        src = src.substring(cap[0].length);
        this$1.inLink = true;
        href = cap[2];
        if (this$1.options.pedantic) {
          link = /^([^'"]*[^\s])\s+(['"])(.*)\2/.exec(href);
  
          if (link) {
            href = link[1];
            title = link[3];
          } else {
            title = '';
          }
        } else {
          title = cap[3] ? cap[3].slice(1, -1) : '';
        }
        href = href.trim().replace(/^<([\s\S]*)>$/, '$1');
        out += this$1.outputLink(cap, {
          href: InlineLexer.escapes(href),
          title: InlineLexer.escapes(title)
        });
        this$1.inLink = false;
        continue;
      }
  
      // reflink, nolink
      if ((cap = this$1.rules.reflink.exec(src))
          || (cap = this$1.rules.nolink.exec(src))) {
        src = src.substring(cap[0].length);
        link = (cap[2] || cap[1]).replace(/\s+/g, ' ');
        link = this$1.links[link.toLowerCase()];
        if (!link || !link.href) {
          out += cap[0].charAt(0);
          src = cap[0].substring(1) + src;
          continue;
        }
        this$1.inLink = true;
        out += this$1.outputLink(cap, link);
        this$1.inLink = false;
        continue;
      }
  
      // strong
      if (cap = this$1.rules.strong.exec(src)) {
        src = src.substring(cap[0].length);
        out += this$1.renderer.strong(this$1.output(cap[4] || cap[3] || cap[2] || cap[1]));
        continue;
      }
  
      // em
      if (cap = this$1.rules.em.exec(src)) {
        src = src.substring(cap[0].length);
        out += this$1.renderer.em(this$1.output(cap[6] || cap[5] || cap[4] || cap[3] || cap[2] || cap[1]));
        continue;
      }
  
      // code
      if (cap = this$1.rules.code.exec(src)) {
        src = src.substring(cap[0].length);
        out += this$1.renderer.codespan(escape(cap[2].trim(), true));
        continue;
      }
  
      // br
      if (cap = this$1.rules.br.exec(src)) {
        src = src.substring(cap[0].length);
        out += this$1.renderer.br();
        continue;
      }
  
      // del (gfm)
      if (cap = this$1.rules.del.exec(src)) {
        src = src.substring(cap[0].length);
        out += this$1.renderer.del(this$1.output(cap[1]));
        continue;
      }
  
      // text
      if (cap = this$1.rules.text.exec(src)) {
        src = src.substring(cap[0].length);
        if (this$1.inRawBlock) {
          out += this$1.renderer.text(cap[0]);
        } else {
          out += this$1.renderer.text(escape(this$1.smartypants(cap[0])));
        }
        continue;
      }
  
      if (src) {
        throw new Error('Infinite loop on byte: ' + src.charCodeAt(0));
      }
    }
  
    return out;
  };
  
  InlineLexer.escapes = function(text) {
    return text ? text.replace(InlineLexer.rules._escapes, '$1') : text;
  };
  
  /**
   * Compile Link
   */
  
  InlineLexer.prototype.outputLink = function(cap, link) {
    var href = link.href,
        title = link.title ? escape(link.title) : null;
  
    return cap[0].charAt(0) !== '!'
      ? this.renderer.link(href, title, this.output(cap[1]))
      : this.renderer.image(href, title, escape(cap[1]));
  };
  
  /**
   * Smartypants Transformations
   */
  
  InlineLexer.prototype.smartypants = function(text) {
    if (!this.options.smartypants) { return text; }
    return text
      // em-dashes
      .replace(/---/g, '\u2014')
      // en-dashes
      .replace(/--/g, '\u2013')
      // opening singles
      .replace(/(^|[-\u2014/(\[{"\s])'/g, '$1\u2018')
      // closing singles & apostrophes
      .replace(/'/g, '\u2019')
      // opening doubles
      .replace(/(^|[-\u2014/(\[{\u2018\s])"/g, '$1\u201c')
      // closing doubles
      .replace(/"/g, '\u201d')
      // ellipses
      .replace(/\.{3}/g, '\u2026');
  };
  
  /**
   * Mangle Links
   */
  
  InlineLexer.prototype.mangle = function(text) {
    if (!this.options.mangle) { return text; }
    var out = '',
        l = text.length,
        i = 0,
        ch;
  
    for (; i < l; i++) {
      ch = text.charCodeAt(i);
      if (Math.random() > 0.5) {
        ch = 'x' + ch.toString(16);
      }
      out += '&#' + ch + ';';
    }
  
    return out;
  };
  
  /**
   * Renderer
   */
  
  function Renderer(options) {
    this.options = options || marked.defaults;
  }
  
  Renderer.prototype.code = function(code, lang, escaped) {
    if (this.options.highlight) {
      var out = this.options.highlight(code, lang);
      if (out != null && out !== code) {
        escaped = true;
        code = out;
      }
    }
  
    if (!lang) {
      return '<pre><code>'
        + (escaped ? code : escape(code, true))
        + '</code></pre>';
    }
  
    return '<pre><code class="'
      + this.options.langPrefix
      + escape(lang, true)
      + '">'
      + (escaped ? code : escape(code, true))
      + '</code></pre>\n';
  };
  
  Renderer.prototype.blockquote = function(quote) {
    return '<blockquote>\n' + quote + '</blockquote>\n';
  };
  
  Renderer.prototype.html = function(html) {
    return html;
  };
  
  Renderer.prototype.heading = function(text, level, raw) {
    if (this.options.headerIds) {
      return '<h'
        + level
        + ' id="'
        + this.options.headerPrefix
        + raw.toLowerCase().replace(/[^\w]+/g, '-')
        + '">'
        + text
        + '</h'
        + level
        + '>\n';
    }
    // ignore IDs
    return '<h' + level + '>' + text + '</h' + level + '>\n';
  };
  
  Renderer.prototype.hr = function() {
    return this.options.xhtml ? '<hr/>\n' : '<hr>\n';
  };
  
  Renderer.prototype.list = function(body, ordered, start) {
    var type = ordered ? 'ol' : 'ul',
        startatt = (ordered && start !== 1) ? (' start="' + start + '"') : '';
    return '<' + type + startatt + '>\n' + body + '</' + type + '>\n';
  };
  
  Renderer.prototype.listitem = function(text) {
    return '<li>' + text + '</li>\n';
  };
  
  Renderer.prototype.checkbox = function(checked) {
    return '<input '
      + (checked ? 'checked="" ' : '')
      + 'disabled="" type="checkbox"'
      + (this.options.xhtml ? ' /' : '')
      + '> ';
  };
  
  Renderer.prototype.paragraph = function(text) {
    return '<p>' + text + '</p>\n';
  };
  
  Renderer.prototype.table = function(header, body) {
    if (body) { body = '<tbody>' + body + '</tbody>'; }
  
    return '<table>\n'
      + '<thead>\n'
      + header
      + '</thead>\n'
      + body
      + '</table>\n';
  };
  
  Renderer.prototype.tablerow = function(content) {
    return '<tr>\n' + content + '</tr>\n';
  };
  
  Renderer.prototype.tablecell = function(content, flags) {
    var type = flags.header ? 'th' : 'td';
    var tag = flags.align
      ? '<' + type + ' align="' + flags.align + '">'
      : '<' + type + '>';
    return tag + content + '</' + type + '>\n';
  };
  
  // span level renderer
  Renderer.prototype.strong = function(text) {
    return '<strong>' + text + '</strong>';
  };
  
  Renderer.prototype.em = function(text) {
    return '<em>' + text + '</em>';
  };
  
  Renderer.prototype.codespan = function(text) {
    return '<code>' + text + '</code>';
  };
  
  Renderer.prototype.br = function() {
    return this.options.xhtml ? '<br/>' : '<br>';
  };
  
  Renderer.prototype.del = function(text) {
    return '<del>' + text + '</del>';
  };
  
  Renderer.prototype.link = function(href, title, text) {
    if (this.options.sanitize) {
      try {
        var prot = decodeURIComponent(unescape(href))
          .replace(/[^\w:]/g, '')
          .toLowerCase();
      } catch (e) {
        return text;
      }
      if (prot.indexOf('javascript:') === 0 || prot.indexOf('vbscript:') === 0 || prot.indexOf('data:') === 0) {
        return text;
      }
    }
    if (this.options.baseUrl && !originIndependentUrl.test(href)) {
      href = resolveUrl(this.options.baseUrl, href);
    }
    try {
      href = encodeURI(href).replace(/%25/g, '%');
    } catch (e) {
      return text;
    }
    var out = '<a href="' + escape(href) + '"';
    if (title) {
      out += ' title="' + title + '"';
    }
    out += '>' + text + '</a>';
    return out;
  };
  
  Renderer.prototype.image = function(href, title, text) {
    if (this.options.baseUrl && !originIndependentUrl.test(href)) {
      href = resolveUrl(this.options.baseUrl, href);
    }
    var out = '<img src="' + href + '" alt="' + text + '"';
    if (title) {
      out += ' title="' + title + '"';
    }
    out += this.options.xhtml ? '/>' : '>';
    return out;
  };
  
  Renderer.prototype.text = function(text) {
    return text;
  };
  
  /**
   * TextRenderer
   * returns only the textual part of the token
   */
  
  function TextRenderer() {}
  
  // no need for block level renderers
  
  TextRenderer.prototype.strong =
  TextRenderer.prototype.em =
  TextRenderer.prototype.codespan =
  TextRenderer.prototype.del =
  TextRenderer.prototype.text = function (text) {
    return text;
  };
  
  TextRenderer.prototype.link =
  TextRenderer.prototype.image = function(href, title, text) {
    return '' + text;
  };
  
  TextRenderer.prototype.br = function() {
    return '';
  };
  
  /**
   * Parsing & Compiling
   */
  
  function Parser(options) {
    this.tokens = [];
    this.token = null;
    this.options = options || marked.defaults;
    this.options.renderer = this.options.renderer || new Renderer();
    this.renderer = this.options.renderer;
    this.renderer.options = this.options;
  }
  
  /**
   * Static Parse Method
   */
  
  Parser.parse = function(src, options) {
    var parser = new Parser(options);
    return parser.parse(src);
  };
  
  /**
   * Parse Loop
   */
  
  Parser.prototype.parse = function(src) {
    var this$1 = this;
  
    this.inline = new InlineLexer(src.links, this.options);
    // use an InlineLexer with a TextRenderer to extract pure text
    this.inlineText = new InlineLexer(
      src.links,
      merge({}, this.options, {renderer: new TextRenderer()})
    );
    this.tokens = src.reverse();
  
    var out = '';
    while (this.next()) {
      out += this$1.tok();
    }
  
    return out;
  };
  
  /**
   * Next Token
   */
  
  Parser.prototype.next = function() {
    return this.token = this.tokens.pop();
  };
  
  /**
   * Preview Next Token
   */
  
  Parser.prototype.peek = function() {
    return this.tokens[this.tokens.length - 1] || 0;
  };
  
  /**
   * Parse Text Tokens
   */
  
  Parser.prototype.parseText = function() {
    var this$1 = this;
  
    var body = this.token.text;
  
    while (this.peek().type === 'text') {
      body += '\n' + this$1.next().text;
    }
  
    return this.inline.output(body);
  };
  
  /**
   * Parse Current Token
   */
  
  Parser.prototype.tok = function() {
    var this$1 = this;
  
    switch (this.token.type) {
      case 'space': {
        return '';
      }
      case 'hr': {
        return this.renderer.hr();
      }
      case 'heading': {
        return this.renderer.heading(
          this.inline.output(this.token.text),
          this.token.depth,
          unescape(this.inlineText.output(this.token.text)));
      }
      case 'code': {
        return this.renderer.code(this.token.text,
          this.token.lang,
          this.token.escaped);
      }
      case 'table': {
        var header = '',
            body = '',
            i,
            row,
            cell,
            j;
  
        // header
        cell = '';
        for (i = 0; i < this.token.header.length; i++) {
          cell += this$1.renderer.tablecell(
            this$1.inline.output(this$1.token.header[i]),
            { header: true, align: this$1.token.align[i] }
          );
        }
        header += this.renderer.tablerow(cell);
  
        for (i = 0; i < this.token.cells.length; i++) {
          row = this$1.token.cells[i];
  
          cell = '';
          for (j = 0; j < row.length; j++) {
            cell += this$1.renderer.tablecell(
              this$1.inline.output(row[j]),
              { header: false, align: this$1.token.align[j] }
            );
          }
  
          body += this$1.renderer.tablerow(cell);
        }
        return this.renderer.table(header, body);
      }
      case 'blockquote_start': {
        body = '';
  
        while (this.next().type !== 'blockquote_end') {
          body += this$1.tok();
        }
  
        return this.renderer.blockquote(body);
      }
      case 'list_start': {
        body = '';
        var ordered = this.token.ordered,
            start = this.token.start;
  
        while (this.next().type !== 'list_end') {
          body += this$1.tok();
        }
  
        return this.renderer.list(body, ordered, start);
      }
      case 'list_item_start': {
        body = '';
        var loose = this.token.loose;
  
        if (this.token.task) {
          body += this.renderer.checkbox(this.token.checked);
        }
  
        while (this.next().type !== 'list_item_end') {
          body += !loose && this$1.token.type === 'text'
            ? this$1.parseText()
            : this$1.tok();
        }
  
        return this.renderer.listitem(body);
      }
      case 'html': {
        // TODO parse inline content if parameter markdown=1
        return this.renderer.html(this.token.text);
      }
      case 'paragraph': {
        return this.renderer.paragraph(this.inline.output(this.token.text));
      }
      case 'text': {
        return this.renderer.paragraph(this.parseText());
      }
    }
  };
  
  /**
   * Helpers
   */
  
  function escape(html, encode) {
    if (encode) {
      if (escape.escapeTest.test(html)) {
        return html.replace(escape.escapeReplace, function (ch) { return escape.replacements[ch] });
      }
    } else {
      if (escape.escapeTestNoEncode.test(html)) {
        return html.replace(escape.escapeReplaceNoEncode, function (ch) { return escape.replacements[ch] });
      }
    }
  
    return html;
  }
  
  escape.escapeTest = /[&<>"']/;
  escape.escapeReplace = /[&<>"']/g;
  escape.replacements = {
    '&': '&amp;',
    '<': '&lt;',
    '>': '&gt;',
    '"': '&quot;',
    "'": '&#39;'
  };
  
  escape.escapeTestNoEncode = /[<>"']|&(?!#?\w+;)/;
  escape.escapeReplaceNoEncode = /[<>"']|&(?!#?\w+;)/g;
  
  function unescape(html) {
    // explicitly match decimal, hex, and named HTML entities
    return html.replace(/&(#(?:\d+)|(?:#x[0-9A-Fa-f]+)|(?:\w+));?/ig, function(_, n) {
      n = n.toLowerCase();
      if (n === 'colon') { return ':'; }
      if (n.charAt(0) === '#') {
        return n.charAt(1) === 'x'
          ? String.fromCharCode(parseInt(n.substring(2), 16))
          : String.fromCharCode(+n.substring(1));
      }
      return '';
    });
  }
  
  function edit(regex, opt) {
    regex = regex.source || regex;
    opt = opt || '';
    return {
      replace: function(name, val) {
        val = val.source || val;
        val = val.replace(/(^|[^\[])\^/g, '$1');
        regex = regex.replace(name, val);
        return this;
      },
      getRegex: function() {
        return new RegExp(regex, opt);
      }
    };
  }
  
  function resolveUrl(base, href) {
    if (!baseUrls[' ' + base]) {
      // we can ignore everything in base after the last slash of its path component,
      // but we might need to add _that_
      // https://tools.ietf.org/html/rfc3986#section-3
      if (/^[^:]+:\/*[^/]*$/.test(base)) {
        baseUrls[' ' + base] = base + '/';
      } else {
        baseUrls[' ' + base] = rtrim(base, '/', true);
      }
    }
    base = baseUrls[' ' + base];
  
    if (href.slice(0, 2) === '//') {
      return base.replace(/:[\s\S]*/, ':') + href;
    } else if (href.charAt(0) === '/') {
      return base.replace(/(:\/*[^/]*)[\s\S]*/, '$1') + href;
    } else {
      return base + href;
    }
  }
  var baseUrls = {};
  var originIndependentUrl = /^$|^[a-z][a-z0-9+.-]*:|^[?#]/i;
  
  function noop() {}
  noop.exec = noop;
  
  function merge(obj) {
    var arguments$1 = arguments;
  
    var i = 1,
        target,
        key;
  
    for (; i < arguments.length; i++) {
      target = arguments$1[i];
      for (key in target) {
        if (Object.prototype.hasOwnProperty.call(target, key)) {
          obj[key] = target[key];
        }
      }
    }
  
    return obj;
  }
  
  function splitCells(tableRow, count) {
    // ensure that every cell-delimiting pipe has a space
    // before it to distinguish it from an escaped pipe
    var row = tableRow.replace(/\|/g, function (match, offset, str) {
          var escaped = false,
              curr = offset;
          while (--curr >= 0 && str[curr] === '\\') { escaped = !escaped; }
          if (escaped) {
            // odd number of slashes means | is escaped
            // so we leave it alone
            return '|';
          } else {
            // add space before unescaped |
            return ' |';
          }
        }),
        cells = row.split(/ \|/),
        i = 0;
  
    if (cells.length > count) {
      cells.splice(count);
    } else {
      while (cells.length < count) { cells.push(''); }
    }
  
    for (; i < cells.length; i++) {
      // leading or trailing whitespace is ignored per the gfm spec
      cells[i] = cells[i].trim().replace(/\\\|/g, '|');
    }
    return cells;
  }
  
  // Remove trailing 'c's. Equivalent to str.replace(/c*$/, '').
  // /c*$/ is vulnerable to REDOS.
  // invert: Remove suffix of non-c chars instead. Default falsey.
  function rtrim(str, c, invert) {
    if (str.length === 0) {
      return '';
    }
  
    // Length of suffix matching the invert condition.
    var suffLen = 0;
  
    // Step left until we fail to match the invert condition.
    while (suffLen < str.length) {
      var currChar = str.charAt(str.length - suffLen - 1);
      if (currChar === c && !invert) {
        suffLen++;
      } else if (currChar !== c && invert) {
        suffLen++;
      } else {
        break;
      }
    }
  
    return str.substr(0, str.length - suffLen);
  }
  
  /**
   * Marked
   */
  
  function marked(src, opt, callback) {
    // throw error in case of non string input
    if (typeof src === 'undefined' || src === null) {
      throw new Error('marked(): input parameter is undefined or null');
    }
    if (typeof src !== 'string') {
      throw new Error('marked(): input parameter is of type '
        + Object.prototype.toString.call(src) + ', string expected');
    }
  
    if (callback || typeof opt === 'function') {
      if (!callback) {
        callback = opt;
        opt = null;
      }
  
      opt = merge({}, marked.defaults, opt || {});
  
      var highlight = opt.highlight,
          tokens,
          pending,
          i = 0;
  
      try {
        tokens = Lexer.lex(src, opt);
      } catch (e) {
        return callback(e);
      }
  
      pending = tokens.length;
  
      var done = function(err) {
        if (err) {
          opt.highlight = highlight;
          return callback(err);
        }
  
        var out;
  
        try {
          out = Parser.parse(tokens, opt);
        } catch (e) {
          err = e;
        }
  
        opt.highlight = highlight;
  
        return err
          ? callback(err)
          : callback(null, out);
      };
  
      if (!highlight || highlight.length < 3) {
        return done();
      }
  
      delete opt.highlight;
  
      if (!pending) { return done(); }
  
      for (; i < tokens.length; i++) {
        (function(token) {
          if (token.type !== 'code') {
            return --pending || done();
          }
          return highlight(token.text, token.lang, function(err, code) {
            if (err) { return done(err); }
            if (code == null || code === token.text) {
              return --pending || done();
            }
            token.text = code;
            token.escaped = true;
            --pending || done();
          });
        })(tokens[i]);
      }
  
      return;
    }
    try {
      if (opt) { opt = merge({}, marked.defaults, opt); }
      return Parser.parse(Lexer.lex(src, opt), opt);
    } catch (e) {
      e.message += '\nPlease report this to https://github.com/markedjs/marked.';
      if ((opt || marked.defaults).silent) {
        return '<p>An error occurred:</p><pre>'
          + escape(e.message + '', true)
          + '</pre>';
      }
      throw e;
    }
  }
  
  /**
   * Options
   */
  
  marked.options =
  marked.setOptions = function(opt) {
    merge(marked.defaults, opt);
    return marked;
  };
  
  marked.getDefaults = function () {
    return {
      baseUrl: null,
      breaks: false,
      gfm: true,
      headerIds: true,
      headerPrefix: '',
      highlight: null,
      langPrefix: 'language-',
      mangle: true,
      pedantic: false,
      renderer: new Renderer(),
      sanitize: false,
      sanitizer: null,
      silent: false,
      smartLists: false,
      smartypants: false,
      tables: true,
      xhtml: false
    };
  };
  
  marked.defaults = marked.getDefaults();
  
  /**
   * Expose
   */
  
  marked.Parser = Parser;
  marked.parser = Parser.parse;
  
  marked.Renderer = Renderer;
  marked.TextRenderer = TextRenderer;
  
  marked.Lexer = Lexer;
  marked.lexer = Lexer.lex;
  
  marked.InlineLexer = InlineLexer;
  marked.inlineLexer = InlineLexer.output;
  
  marked.parse = marked;
  
  {
    module.exports = marked;
  }
  })(commonjsGlobal || (typeof window !== 'undefined' ? window : commonjsGlobal));
  });
  
  var prism = createCommonjsModule(function (module) {
  /* **********************************************
       Begin prism-core.js
  ********************************************** */
  
  var _self = (typeof window !== 'undefined')
    ? window   // if in browser
    : (
      (typeof WorkerGlobalScope !== 'undefined' && self instanceof WorkerGlobalScope)
      ? self // if in worker
      : {}   // if in node js
    );
  
  /**
   * Prism: Lightweight, robust, elegant syntax highlighting
   * MIT license http://www.opensource.org/licenses/mit-license.php/
   * @author Lea Verou http://lea.verou.me
   */
  
  var Prism = (function(){
  
  // Private helper vars
  var lang = /\blang(?:uage)?-([\w-]+)\b/i;
  var uniqueId = 0;
  
  var _ = _self.Prism = {
    manual: _self.Prism && _self.Prism.manual,
    disableWorkerMessageHandler: _self.Prism && _self.Prism.disableWorkerMessageHandler,
    util: {
      encode: function (tokens) {
        if (tokens instanceof Token) {
          return new Token(tokens.type, _.util.encode(tokens.content), tokens.alias);
        } else if (_.util.type(tokens) === 'Array') {
          return tokens.map(_.util.encode);
        } else {
          return tokens.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/\u00a0/g, ' ');
        }
      },
  
      type: function (o) {
        return Object.prototype.toString.call(o).match(/\[object (\w+)\]/)[1];
      },
  
      objId: function (obj) {
        if (!obj['__id']) {
          Object.defineProperty(obj, '__id', { value: ++uniqueId });
        }
        return obj['__id'];
      },
  
      // Deep clone a language definition (e.g. to extend it)
      clone: function (o, visited) {
        var type = _.util.type(o);
        visited = visited || {};
  
        switch (type) {
          case 'Object':
            if (visited[_.util.objId(o)]) {
              return visited[_.util.objId(o)];
            }
            var clone = {};
            visited[_.util.objId(o)] = clone;
  
            for (var key in o) {
              if (o.hasOwnProperty(key)) {
                clone[key] = _.util.clone(o[key], visited);
              }
            }
  
            return clone;
  
          case 'Array':
            if (visited[_.util.objId(o)]) {
              return visited[_.util.objId(o)];
            }
            var clone = [];
            visited[_.util.objId(o)] = clone;
  
            o.forEach(function (v, i) {
              clone[i] = _.util.clone(v, visited);
            });
  
            return clone;
        }
  
        return o;
      }
    },
  
    languages: {
      extend: function (id, redef) {
        var lang = _.util.clone(_.languages[id]);
  
        for (var key in redef) {
          lang[key] = redef[key];
        }
  
        return lang;
      },
  
      /**
       * Insert a token before another token in a language literal
       * As this needs to recreate the object (we cannot actually insert before keys in object literals),
       * we cannot just provide an object, we need anobject and a key.
       * @param inside The key (or language id) of the parent
       * @param before The key to insert before. If not provided, the function appends instead.
       * @param insert Object with the key/value pairs to insert
       * @param root The object that contains `inside`. If equal to Prism.languages, it can be omitted.
       */
      insertBefore: function (inside, before, insert, root) {
        root = root || _.languages;
        var grammar = root[inside];
  
        if (arguments.length == 2) {
          insert = arguments[1];
  
          for (var newToken in insert) {
            if (insert.hasOwnProperty(newToken)) {
              grammar[newToken] = insert[newToken];
            }
          }
  
          return grammar;
        }
  
        var ret = {};
  
        for (var token in grammar) {
  
          if (grammar.hasOwnProperty(token)) {
  
            if (token == before) {
  
              for (var newToken in insert) {
  
                if (insert.hasOwnProperty(newToken)) {
                  ret[newToken] = insert[newToken];
                }
              }
            }
  
            ret[token] = grammar[token];
          }
        }
  
        // Update references in other language definitions
        _.languages.DFS(_.languages, function(key, value) {
          if (value === root[inside] && key != inside) {
            this[key] = ret;
          }
        });
  
        return root[inside] = ret;
      },
  
      // Traverse a language definition with Depth First Search
      DFS: function(o, callback, type, visited) {
        visited = visited || {};
        for (var i in o) {
          if (o.hasOwnProperty(i)) {
            callback.call(o, i, o[i], type || i);
  
            if (_.util.type(o[i]) === 'Object' && !visited[_.util.objId(o[i])]) {
              visited[_.util.objId(o[i])] = true;
              _.languages.DFS(o[i], callback, null, visited);
            }
            else if (_.util.type(o[i]) === 'Array' && !visited[_.util.objId(o[i])]) {
              visited[_.util.objId(o[i])] = true;
              _.languages.DFS(o[i], callback, i, visited);
            }
          }
        }
      }
    },
    plugins: {},
  
    highlightAll: function(async, callback) {
      _.highlightAllUnder(document, async, callback);
    },
  
    highlightAllUnder: function(container, async, callback) {
      var env = {
        callback: callback,
        selector: 'code[class*="language-"], [class*="language-"] code, code[class*="lang-"], [class*="lang-"] code'
      };
  
      _.hooks.run("before-highlightall", env);
  
      var elements = env.elements || container.querySelectorAll(env.selector);
  
      for (var i=0, element; element = elements[i++];) {
        _.highlightElement(element, async === true, env.callback);
      }
    },
  
    highlightElement: function(element, async, callback) {
      // Find language
      var language, grammar, parent = element;
  
      while (parent && !lang.test(parent.className)) {
        parent = parent.parentNode;
      }
  
      if (parent) {
        language = (parent.className.match(lang) || [,''])[1].toLowerCase();
        grammar = _.languages[language];
      }
  
      // Set language on the element, if not present
      element.className = element.className.replace(lang, '').replace(/\s+/g, ' ') + ' language-' + language;
  
      if (element.parentNode) {
        // Set language on the parent, for styling
        parent = element.parentNode;
  
        if (/pre/i.test(parent.nodeName)) {
          parent.className = parent.className.replace(lang, '').replace(/\s+/g, ' ') + ' language-' + language;
        }
      }
  
      var code = element.textContent;
  
      var env = {
        element: element,
        language: language,
        grammar: grammar,
        code: code
      };
  
      _.hooks.run('before-sanity-check', env);
  
      if (!env.code || !env.grammar) {
        if (env.code) {
          _.hooks.run('before-highlight', env);
          env.element.textContent = env.code;
          _.hooks.run('after-highlight', env);
        }
        _.hooks.run('complete', env);
        return;
      }
  
      _.hooks.run('before-highlight', env);
  
      if (async && _self.Worker) {
        var worker = new Worker(_.filename);
  
        worker.onmessage = function(evt) {
          env.highlightedCode = evt.data;
  
          _.hooks.run('before-insert', env);
  
          env.element.innerHTML = env.highlightedCode;
  
          callback && callback.call(env.element);
          _.hooks.run('after-highlight', env);
          _.hooks.run('complete', env);
        };
  
        worker.postMessage(JSON.stringify({
          language: env.language,
          code: env.code,
          immediateClose: true
        }));
      }
      else {
        env.highlightedCode = _.highlight(env.code, env.grammar, env.language);
  
        _.hooks.run('before-insert', env);
  
        env.element.innerHTML = env.highlightedCode;
  
        callback && callback.call(element);
  
        _.hooks.run('after-highlight', env);
        _.hooks.run('complete', env);
      }
    },
  
    highlight: function (text, grammar, language) {
      var env = {
        code: text,
        grammar: grammar,
        language: language
      };
      _.hooks.run('before-tokenize', env);
      env.tokens = _.tokenize(env.code, env.grammar);
      _.hooks.run('after-tokenize', env);
      return Token.stringify(_.util.encode(env.tokens), env.language);
    },
  
    matchGrammar: function (text, strarr, grammar, index, startPos, oneshot, target) {
      var Token = _.Token;
  
      for (var token in grammar) {
        if(!grammar.hasOwnProperty(token) || !grammar[token]) {
          continue;
        }
  
        if (token == target) {
          return;
        }
  
        var patterns = grammar[token];
        patterns = (_.util.type(patterns) === "Array") ? patterns : [patterns];
  
        for (var j = 0; j < patterns.length; ++j) {
          var pattern = patterns[j],
            inside = pattern.inside,
            lookbehind = !!pattern.lookbehind,
            greedy = !!pattern.greedy,
            lookbehindLength = 0,
            alias = pattern.alias;
  
          if (greedy && !pattern.pattern.global) {
            // Without the global flag, lastIndex won't work
            var flags = pattern.pattern.toString().match(/[imuy]*$/)[0];
            pattern.pattern = RegExp(pattern.pattern.source, flags + "g");
          }
  
          pattern = pattern.pattern || pattern;
  
          // Don’t cache length as it changes during the loop
          for (var i = index, pos = startPos; i < strarr.length; pos += strarr[i].length, ++i) {
  
            var str = strarr[i];
  
            if (strarr.length > text.length) {
              // Something went terribly wrong, ABORT, ABORT!
              return;
            }
  
            if (str instanceof Token) {
              continue;
            }
  
            if (greedy && i != strarr.length - 1) {
              pattern.lastIndex = pos;
              var match = pattern.exec(text);
              if (!match) {
                break;
              }
  
              var from = match.index + (lookbehind ? match[1].length : 0),
                  to = match.index + match[0].length,
                  k = i,
                  p = pos;
  
              for (var len = strarr.length; k < len && (p < to || (!strarr[k].type && !strarr[k - 1].greedy)); ++k) {
                p += strarr[k].length;
                // Move the index i to the element in strarr that is closest to from
                if (from >= p) {
                  ++i;
                  pos = p;
                }
              }
  
              // If strarr[i] is a Token, then the match starts inside another Token, which is invalid
              if (strarr[i] instanceof Token) {
                continue;
              }
  
              // Number of tokens to delete and replace with the new match
              delNum = k - i;
              str = text.slice(pos, p);
              match.index -= pos;
            } else {
              pattern.lastIndex = 0;
  
              var match = pattern.exec(str),
                delNum = 1;
            }
  
            if (!match) {
              if (oneshot) {
                break;
              }
  
              continue;
            }
  
            if(lookbehind) {
              lookbehindLength = match[1] ? match[1].length : 0;
            }
  
            var from = match.index + lookbehindLength,
                match = match[0].slice(lookbehindLength),
                to = from + match.length,
                before = str.slice(0, from),
                after = str.slice(to);
  
            var args = [i, delNum];
  
            if (before) {
              ++i;
              pos += before.length;
              args.push(before);
            }
  
            var wrapped = new Token(token, inside? _.tokenize(match, inside) : match, alias, match, greedy);
  
            args.push(wrapped);
  
            if (after) {
              args.push(after);
            }
  
            Array.prototype.splice.apply(strarr, args);
  
            if (delNum != 1)
              { _.matchGrammar(text, strarr, grammar, i, pos, true, token); }
  
            if (oneshot)
              { break; }
          }
        }
      }
    },
  
    tokenize: function(text, grammar, language) {
      var strarr = [text];
  
      var rest = grammar.rest;
  
      if (rest) {
        for (var token in rest) {
          grammar[token] = rest[token];
        }
  
        delete grammar.rest;
      }
  
      _.matchGrammar(text, strarr, grammar, 0, 0, false);
  
      return strarr;
    },
  
    hooks: {
      all: {},
  
      add: function (name, callback) {
        var hooks = _.hooks.all;
  
        hooks[name] = hooks[name] || [];
  
        hooks[name].push(callback);
      },
  
      run: function (name, env) {
        var callbacks = _.hooks.all[name];
  
        if (!callbacks || !callbacks.length) {
          return;
        }
  
        for (var i=0, callback; callback = callbacks[i++];) {
          callback(env);
        }
      }
    }
  };
  
  var Token = _.Token = function(type, content, alias, matchedStr, greedy) {
    this.type = type;
    this.content = content;
    this.alias = alias;
    // Copy of the full string this token was created from
    this.length = (matchedStr || "").length|0;
    this.greedy = !!greedy;
  };
  
  Token.stringify = function(o, language, parent) {
    if (typeof o == 'string') {
      return o;
    }
  
    if (_.util.type(o) === 'Array') {
      return o.map(function(element) {
        return Token.stringify(element, language, o);
      }).join('');
    }
  
    var env = {
      type: o.type,
      content: Token.stringify(o.content, language, parent),
      tag: 'span',
      classes: ['token', o.type],
      attributes: {},
      language: language,
      parent: parent
    };
  
    if (o.alias) {
      var aliases = _.util.type(o.alias) === 'Array' ? o.alias : [o.alias];
      Array.prototype.push.apply(env.classes, aliases);
    }
  
    _.hooks.run('wrap', env);
  
    var attributes = Object.keys(env.attributes).map(function(name) {
      return name + '="' + (env.attributes[name] || '').replace(/"/g, '&quot;') + '"';
    }).join(' ');
  
    return '<' + env.tag + ' class="' + env.classes.join(' ') + '"' + (attributes ? ' ' + attributes : '') + '>' + env.content + '</' + env.tag + '>';
  
  };
  
  if (!_self.document) {
    if (!_self.addEventListener) {
      // in Node.js
      return _self.Prism;
    }
  
    if (!_.disableWorkerMessageHandler) {
      // In worker
      _self.addEventListener('message', function (evt) {
        var message = JSON.parse(evt.data),
          lang = message.language,
          code = message.code,
          immediateClose = message.immediateClose;
  
        _self.postMessage(_.highlight(code, _.languages[lang], lang));
        if (immediateClose) {
          _self.close();
        }
      }, false);
    }
  
    return _self.Prism;
  }
  
  //Get current script and highlight
  var script = document.currentScript || [].slice.call(document.getElementsByTagName("script")).pop();
  
  if (script) {
    _.filename = script.src;
  
    if (!_.manual && !script.hasAttribute('data-manual')) {
      if(document.readyState !== "loading") {
        if (window.requestAnimationFrame) {
          window.requestAnimationFrame(_.highlightAll);
        } else {
          window.setTimeout(_.highlightAll, 16);
        }
      }
      else {
        document.addEventListener('DOMContentLoaded', _.highlightAll);
      }
    }
  }
  
  return _self.Prism;
  
  })();
  
  if ('object' !== 'undefined' && module.exports) {
    module.exports = Prism;
  }
  
  // hack for components to work correctly in node.js
  if (typeof commonjsGlobal !== 'undefined') {
    commonjsGlobal.Prism = Prism;
  }
  
  
  /* **********************************************
       Begin prism-markup.js
  ********************************************** */
  
  Prism.languages.markup = {
    'comment': /<!--[\s\S]*?-->/,
    'prolog': /<\?[\s\S]+?\?>/,
    'doctype': /<!DOCTYPE[\s\S]+?>/i,
    'cdata': /<!\[CDATA\[[\s\S]*?]]>/i,
    'tag': {
      pattern: /<\/?(?!\d)[^\s>\/=$<%]+(?:\s+[^\s>\/=]+(?:=(?:("|')(?:\\[\s\S]|(?!\1)[^\\])*\1|[^\s'">=]+))?)*\s*\/?>/i,
      greedy: true,
      inside: {
        'tag': {
          pattern: /^<\/?[^\s>\/]+/i,
          inside: {
            'punctuation': /^<\/?/,
            'namespace': /^[^\s>\/:]+:/
          }
        },
        'attr-value': {
          pattern: /=(?:("|')(?:\\[\s\S]|(?!\1)[^\\])*\1|[^\s'">=]+)/i,
          inside: {
            'punctuation': [
              /^=/,
              {
                pattern: /(^|[^\\])["']/,
                lookbehind: true
              }
            ]
          }
        },
        'punctuation': /\/?>/,
        'attr-name': {
          pattern: /[^\s>\/]+/,
          inside: {
            'namespace': /^[^\s>\/:]+:/
          }
        }
  
      }
    },
    'entity': /&#?[\da-z]{1,8};/i
  };
  
  Prism.languages.markup['tag'].inside['attr-value'].inside['entity'] =
    Prism.languages.markup['entity'];
  
  // Plugin to make entity title show the real entity, idea by Roman Komarov
  Prism.hooks.add('wrap', function(env) {
  
    if (env.type === 'entity') {
      env.attributes['title'] = env.content.replace(/&amp;/, '&');
    }
  });
  
  Prism.languages.xml = Prism.languages.markup;
  Prism.languages.html = Prism.languages.markup;
  Prism.languages.mathml = Prism.languages.markup;
  Prism.languages.svg = Prism.languages.markup;
  
  
  /* **********************************************
       Begin prism-css.js
  ********************************************** */
  
  Prism.languages.css = {
    'comment': /\/\*[\s\S]*?\*\//,
    'atrule': {
      pattern: /@[\w-]+?.*?(?:;|(?=\s*\{))/i,
      inside: {
        'rule': /@[\w-]+/
        // See rest below
      }
    },
    'url': /url\((?:(["'])(?:\\(?:\r\n|[\s\S])|(?!\1)[^\\\r\n])*\1|.*?)\)/i,
    'selector': /[^{}\s][^{};]*?(?=\s*\{)/,
    'string': {
      pattern: /("|')(?:\\(?:\r\n|[\s\S])|(?!\1)[^\\\r\n])*\1/,
      greedy: true
    },
    'property': /[-_a-z\xA0-\uFFFF][-\w\xA0-\uFFFF]*(?=\s*:)/i,
    'important': /\B!important\b/i,
    'function': /[-a-z0-9]+(?=\()/i,
    'punctuation': /[(){};:]/
  };
  
  Prism.languages.css['atrule'].inside.rest = Prism.languages.css;
  
  if (Prism.languages.markup) {
    Prism.languages.insertBefore('markup', 'tag', {
      'style': {
        pattern: /(<style[\s\S]*?>)[\s\S]*?(?=<\/style>)/i,
        lookbehind: true,
        inside: Prism.languages.css,
        alias: 'language-css',
        greedy: true
      }
    });
  
    Prism.languages.insertBefore('inside', 'attr-value', {
      'style-attr': {
        pattern: /\s*style=("|')(?:\\[\s\S]|(?!\1)[^\\])*\1/i,
        inside: {
          'attr-name': {
            pattern: /^\s*style/i,
            inside: Prism.languages.markup.tag.inside
          },
          'punctuation': /^\s*=\s*['"]|['"]\s*$/,
          'attr-value': {
            pattern: /.+/i,
            inside: Prism.languages.css
          }
        },
        alias: 'language-css'
      }
    }, Prism.languages.markup.tag);
  }
  
  /* **********************************************
       Begin prism-clike.js
  ********************************************** */
  
  Prism.languages.clike = {
    'comment': [
      {
        pattern: /(^|[^\\])\/\*[\s\S]*?(?:\*\/|$)/,
        lookbehind: true
      },
      {
        pattern: /(^|[^\\:])\/\/.*/,
        lookbehind: true,
        greedy: true
      }
    ],
    'string': {
      pattern: /(["'])(?:\\(?:\r\n|[\s\S])|(?!\1)[^\\\r\n])*\1/,
      greedy: true
    },
    'class-name': {
      pattern: /((?:\b(?:class|interface|extends|implements|trait|instanceof|new)\s+)|(?:catch\s+\())[\w.\\]+/i,
      lookbehind: true,
      inside: {
        punctuation: /[.\\]/
      }
    },
    'keyword': /\b(?:if|else|while|do|for|return|in|instanceof|function|new|try|throw|catch|finally|null|break|continue)\b/,
    'boolean': /\b(?:true|false)\b/,
    'function': /[a-z0-9_]+(?=\()/i,
    'number': /\b0x[\da-f]+\b|(?:\b\d+\.?\d*|\B\.\d+)(?:e[+-]?\d+)?/i,
    'operator': /--?|\+\+?|!=?=?|<=?|>=?|==?=?|&&?|\|\|?|\?|\*|\/|~|\^|%/,
    'punctuation': /[{}[\];(),.:]/
  };
  
  
  /* **********************************************
       Begin prism-javascript.js
  ********************************************** */
  
  Prism.languages.javascript = Prism.languages.extend('clike', {
    'keyword': /\b(?:as|async|await|break|case|catch|class|const|continue|debugger|default|delete|do|else|enum|export|extends|finally|for|from|function|get|if|implements|import|in|instanceof|interface|let|new|null|of|package|private|protected|public|return|set|static|super|switch|this|throw|try|typeof|var|void|while|with|yield)\b/,
    'number': /\b(?:0[xX][\dA-Fa-f]+|0[bB][01]+|0[oO][0-7]+|NaN|Infinity)\b|(?:\b\d+\.?\d*|\B\.\d+)(?:[Ee][+-]?\d+)?/,
    // Allow for all non-ASCII characters (See http://stackoverflow.com/a/2008444)
    'function': /[_$a-z\xA0-\uFFFF][$\w\xA0-\uFFFF]*(?=\s*\()/i,
    'operator': /-[-=]?|\+[+=]?|!=?=?|<<?=?|>>?>?=?|=(?:==?|>)?|&[&=]?|\|[|=]?|\*\*?=?|\/=?|~|\^=?|%=?|\?|\.{3}/
  });
  
  Prism.languages.insertBefore('javascript', 'keyword', {
    'regex': {
      pattern: /((?:^|[^$\w\xA0-\uFFFF."'\])\s])\s*)\/(\[[^\]\r\n]+]|\\.|[^/\\\[\r\n])+\/[gimyu]{0,5}(?=\s*($|[\r\n,.;})\]]))/,
      lookbehind: true,
      greedy: true
    },
    // This must be declared before keyword because we use "function" inside the look-forward
    'function-variable': {
      pattern: /[_$a-z\xA0-\uFFFF][$\w\xA0-\uFFFF]*(?=\s*=\s*(?:function\b|(?:\([^()]*\)|[_$a-z\xA0-\uFFFF][$\w\xA0-\uFFFF]*)\s*=>))/i,
      alias: 'function'
    },
    'constant': /\b[A-Z][A-Z\d_]*\b/
  });
  
  Prism.languages.insertBefore('javascript', 'string', {
    'template-string': {
      pattern: /`(?:\\[\s\S]|\${[^}]+}|[^\\`])*`/,
      greedy: true,
      inside: {
        'interpolation': {
          pattern: /\${[^}]+}/,
          inside: {
            'interpolation-punctuation': {
              pattern: /^\${|}$/,
              alias: 'punctuation'
            },
            rest: null // See below
          }
        },
        'string': /[\s\S]+/
      }
    }
  });
  Prism.languages.javascript['template-string'].inside['interpolation'].inside.rest = Prism.languages.javascript;
  
  if (Prism.languages.markup) {
    Prism.languages.insertBefore('markup', 'tag', {
      'script': {
        pattern: /(<script[\s\S]*?>)[\s\S]*?(?=<\/script>)/i,
        lookbehind: true,
        inside: Prism.languages.javascript,
        alias: 'language-javascript',
        greedy: true
      }
    });
  }
  
  Prism.languages.js = Prism.languages.javascript;
  
  
  /* **********************************************
       Begin prism-file-highlight.js
  ********************************************** */
  
  (function () {
    if (typeof self === 'undefined' || !self.Prism || !self.document || !document.querySelector) {
      return;
    }
  
    self.Prism.fileHighlight = function() {
  
      var Extensions = {
        'js': 'javascript',
        'py': 'python',
        'rb': 'ruby',
        'ps1': 'powershell',
        'psm1': 'powershell',
        'sh': 'bash',
        'bat': 'batch',
        'h': 'c',
        'tex': 'latex'
      };
  
      Array.prototype.slice.call(document.querySelectorAll('pre[data-src]')).forEach(function (pre) {
        var src = pre.getAttribute('data-src');
  
        var language, parent = pre;
        var lang = /\blang(?:uage)?-([\w-]+)\b/i;
        while (parent && !lang.test(parent.className)) {
          parent = parent.parentNode;
        }
  
        if (parent) {
          language = (pre.className.match(lang) || [, ''])[1];
        }
  
        if (!language) {
          var extension = (src.match(/\.(\w+)$/) || [, ''])[1];
          language = Extensions[extension] || extension;
        }
  
        var code = document.createElement('code');
        code.className = 'language-' + language;
  
        pre.textContent = '';
  
        code.textContent = 'Loading…';
  
        pre.appendChild(code);
  
        var xhr = new XMLHttpRequest();
  
        xhr.open('GET', src, true);
  
        xhr.onreadystatechange = function () {
          if (xhr.readyState == 4) {
  
            if (xhr.status < 400 && xhr.responseText) {
              code.textContent = xhr.responseText;
  
              Prism.highlightElement(code);
            }
            else if (xhr.status >= 400) {
              code.textContent = '✖ Error ' + xhr.status + ' while fetching file: ' + xhr.statusText;
            }
            else {
              code.textContent = '✖ Error: File does not exist or is empty';
            }
          }
        };
  
        xhr.send(null);
      });
  
      if (Prism.plugins.toolbar) {
        Prism.plugins.toolbar.registerButton('download-file', function (env) {
          var pre = env.element.parentNode;
          if (!pre || !/pre/i.test(pre.nodeName) || !pre.hasAttribute('data-src') || !pre.hasAttribute('data-download-link')) {
            return;
          }
          var src = pre.getAttribute('data-src');
          var a = document.createElement('a');
          a.textContent = pre.getAttribute('data-download-link-label') || 'Download';
          a.setAttribute('download', '');
          a.href = src;
          return a;
        });
      }
  
    };
  
    document.addEventListener('DOMContentLoaded', self.Prism.fileHighlight);
  
  })();
  });
  
  /**
   * Gen toc tree
   * @link https://github.com/killercup/grock/blob/5280ae63e16c5739e9233d9009bc235ed7d79a50/styles/solarized/assets/js/behavior.coffee#L54-L81
   * @param  {Array} toc
   * @param  {Number} maxLevel
   * @return {Array}
   */
  function genTree(toc, maxLevel) {
    var headlines = [];
    var last = {};
  
    toc.forEach(function (headline) {
      var level = headline.level || 1;
      var len = level - 1;
  
      if (level > maxLevel) {
        return
      }
      if (last[len]) {
        last[len].children = (last[len].children || []).concat(headline);
      } else {
        headlines.push(headline);
      }
      last[level] = headline;
    });
  
    return headlines
  }
  
  var cache$1 = {};
  var re = /[\u2000-\u206F\u2E00-\u2E7F\\'!"#$%&()*+,./:;<=>?@[\]^`{|}~]/g;
  
  function lower(string) {
    return string.toLowerCase()
  }
  
  function slugify(str) {
    if (typeof str !== 'string') {
      return ''
    }
  
    var slug = str
      .trim()
      .replace(/[A-Z]+/g, lower)
      .replace(/<[^>\d]+>/g, '')
      .replace(re, '')
      .replace(/\s/g, '-')
      .replace(/-+/g, '-')
      .replace(/^(\d)/, '_$1');
    var count = cache$1[slug];
  
    count = hasOwn.call(cache$1, slug) ? count + 1 : 0;
    cache$1[slug] = count;
  
    if (count) {
      slug = slug + '-' + count;
    }
  
    return slug
  }
  
  slugify.clear = function () {
    cache$1 = {};
  };
  
  function replace(m, $1) {
    return '<img class="emoji" src="https://github.githubassets.com/images/icons/emoji/' + $1 + '.png" alt="' + $1 + '" />'
  }
  
  function emojify(text) {
    return text
      .replace(/<(pre|template|code)[^>]*?>[\s\S]+?<\/(pre|template|code)>/g, function (m) { return m.replace(/:/g, '__colon__'); })
      .replace(/:(\w+?):/ig, (inBrowser && window.emojify) || replace)
      .replace(/__colon__/g, ':')
  }
  
  var decode = decodeURIComponent;
  var encode = encodeURIComponent;
  
  function parseQuery(query) {
    var res = {};
  
    query = query.trim().replace(/^(\?|#|&)/, '');
  
    if (!query) {
      return res
    }
  
    // Simple parse
    query.split('&').forEach(function (param) {
      var parts = param.replace(/\+/g, ' ').split('=');
  
      res[parts[0]] = parts[1] && decode(parts[1]);
    });
  
    return res
  }
  
  function stringifyQuery(obj, ignores) {
    if ( ignores === void 0 ) ignores = [];
  
    var qs = [];
  
    for (var key in obj) {
      if (ignores.indexOf(key) > -1) {
        continue
      }
      qs.push(
        obj[key] ?
          ((encode(key)) + "=" + (encode(obj[key]))).toLowerCase() :
          encode(key)
      );
    }
  
    return qs.length ? ("?" + (qs.join('&'))) : ''
  }
  
  var isAbsolutePath = cached(function (path) {
    return /(:|(\/{2}))/g.test(path)
  });
  
  var getParentPath = cached(function (path) {
    return /\/$/g.test(path) ?
      path :
      (path = path.match(/(\S*\/)[^/]+$/)) ? path[1] : ''
  });
  
  var cleanPath = cached(function (path) {
    return path.replace(/^\/+/, '/').replace(/([^:])\/{2,}/g, '$1/')
  });
  
  var resolvePath = cached(function (path) {
    var segments = path.replace(/^\//, '').split('/');
    var resolved = [];
    for (var i = 0, len = segments.length; i < len; i++) {
      var segment = segments[i];
      if (segment === '..') {
        resolved.pop();
      } else if (segment !== '.') {
        resolved.push(segment);
      }
    }
    return '/' + resolved.join('/')
  });
  
  function getPath() {
    var args = [], len = arguments.length;
    while ( len-- ) args[ len ] = arguments[ len ];
  
    return cleanPath(args.join('/'))
  }
  
  var replaceSlug = cached(function (path) {
    return path.replace('#', '?id=')
  });
  
  Prism.languages['markup-templating'] = {};
  
  Object.defineProperties(Prism.languages['markup-templating'], {
    buildPlaceholders: {
      // Tokenize all inline templating expressions matching placeholderPattern
      // If the replaceFilter function is provided, it will be called with every match.
      // If it returns false, the match will not be replaced.
      value: function (env, language, placeholderPattern, replaceFilter) {
        if (env.language !== language) {
          return;
        }
  
        env.tokenStack = [];
  
        env.code = env.code.replace(placeholderPattern, function(match) {
          if (typeof replaceFilter === 'function' && !replaceFilter(match)) {
            return match;
          }
          var i = env.tokenStack.length;
          // Check for existing strings
          while (env.code.indexOf('___' + language.toUpperCase() + i + '___') !== -1)
            { ++i; }
  
          // Create a sparse array
          env.tokenStack[i] = match;
  
          return '___' + language.toUpperCase() + i + '___';
        });
  
        // Switch the grammar to markup
        env.grammar = Prism.languages.markup;
      }
    },
    tokenizePlaceholders: {
      // Replace placeholders with proper tokens after tokenizing
      value: function (env, language) {
        if (env.language !== language || !env.tokenStack) {
          return;
        }
  
        // Switch the grammar back
        env.grammar = Prism.languages[language];
  
        var j = 0;
        var keys = Object.keys(env.tokenStack);
        var walkTokens = function (tokens) {
          if (j >= keys.length) {
            return;
          }
          for (var i = 0; i < tokens.length; i++) {
            var token = tokens[i];
            if (typeof token === 'string' || (token.content && typeof token.content === 'string')) {
              var k = keys[j];
              var t = env.tokenStack[k];
              var s = typeof token === 'string' ? token : token.content;
  
              var index = s.indexOf('___' + language.toUpperCase() + k + '___');
              if (index > -1) {
                ++j;
                var before = s.substring(0, index);
                var middle = new Prism.Token(language, Prism.tokenize(t, env.grammar, language), 'language-' + language, t);
                var after = s.substring(index + ('___' + language.toUpperCase() + k + '___').length);
                var replacement;
                if (before || after) {
                  replacement = [before, middle, after].filter(function (v) { return !!v; });
                  walkTokens(replacement);
                } else {
                  replacement = middle;
                }
                if (typeof token === 'string') {
                  Array.prototype.splice.apply(tokens, [i, 1].concat(replacement));
                } else {
                  token.content = replacement;
                }
  
                if (j >= keys.length) {
                  break;
                }
              }
            } else if (token.content && typeof token.content !== 'string') {
              walkTokens(token.content);
            }
          }
        };
  
        walkTokens(env.tokens);
      }
    }
  });
  
  // See https://github.com/PrismJS/prism/pull/1367
  var cachedLinks = {};
  
  function getAndRemoveConfig(str) {
    if ( str === void 0 ) str = '';
  
    var config = {};
  
    if (str) {
      str = str
        .replace(/^'/, '')
        .replace(/'$/, '')
        .replace(/(?:^|\s):([\w-]+)=?([\w-]+)?/g, function (m, key, value) {
          config[key] = (value && value.replace(/&quot;/g, '')) || true;
          return ''
        })
        .trim();
    }
  
    return {str: str, config: config}
  }
  
  var compileMedia = {
    markdown: function markdown(url) {
      return {
        url: url
      }
    },
    mermaid: function mermaid(url) {
      return {
        url: url
      }
    },
    iframe: function iframe(url, title) {
      return {
        html: ("<iframe src=\"" + url + "\" " + (title || 'width=100% height=400') + "></iframe>")
      }
    },
    video: function video(url, title) {
      return {
        html: ("<video src=\"" + url + "\" " + (title || 'controls') + ">Not Support</video>")
      }
    },
    audio: function audio(url, title) {
      return {
        html: ("<audio src=\"" + url + "\" " + (title || 'controls') + ">Not Support</audio>")
      }
    },
    code: function code(url, title) {
      var lang = url.match(/\.(\w+)$/);
  
      lang = title || (lang && lang[1]);
      if (lang === 'md') {
        lang = 'markdown';
      }
  
      return {
        url: url,
        lang: lang
      }
    }
  };
  
  var Compiler = function Compiler(config, router) {
    var this$1 = this;
  
    this.config = config;
    this.router = router;
    this.cacheTree = {};
    this.toc = [];
    this.cacheTOC = {};
    this.linkTarget = config.externalLinkTarget || '_blank';
    this.contentBase = router.getBasePath();
  
    var renderer = this._initRenderer();
    var compile;
    var mdConf = config.markdown || {};
  
    if (isFn(mdConf)) {
      compile = mdConf(marked, renderer);
    } else {
      marked.setOptions(
        merge(mdConf, {
          renderer: merge(renderer, mdConf.renderer)
        })
      );
      compile = marked;
    }
  
    this._marked = compile;
    this.compile = function (text) {
      var isCached = true;
      var result = cached(function (_) {
        isCached = false;
        var html = '';
  
        if (!text) {
          return text
        }
  
        if (isPrimitive(text)) {
          html = compile(text);
        } else {
          html = compile.parser(text);
        }
  
        html = config.noEmoji ? html : emojify(html);
        slugify.clear();
  
        return html
      })(text);
  
      var curFileName = this$1.router.parse().file;
  
      if (isCached) {
        this$1.toc = this$1.cacheTOC[curFileName];
      } else {
        this$1.cacheTOC[curFileName] = [].concat( this$1.toc );
      }
  
      return result
    };
  };
  
  Compiler.prototype.compileEmbed = function compileEmbed (href, title) {
    var ref = getAndRemoveConfig(title);
      var str = ref.str;
      var config = ref.config;
    var embed;
    title = str;
  
    if (config.include) {
      if (!isAbsolutePath(href)) {
        href = getPath(
          this.contentBase,
          getParentPath(this.router.getCurrentPath()),
          href
        );
      }
  
      var media;
      if (config.type && (media = compileMedia[config.type])) {
        embed = media.call(this, href, title);
        embed.type = config.type;
      } else {
        var type = 'code';
        if (/\.(md|markdown)/.test(href)) {
          type = 'markdown';
        } else if (/\.mmd/.test(href)) {
          type = 'mermaid';
        } else if (/\.html?/.test(href)) {
          type = 'iframe';
        } else if (/\.(mp4|ogg)/.test(href)) {
          type = 'video';
        } else if (/\.mp3/.test(href)) {
          type = 'audio';
        }
        embed = compileMedia[type].call(this, href, title);
        embed.type = type;
      }
      embed.fragment = config.fragment;
  
      return embed
    }
  };
  
  Compiler.prototype._matchNotCompileLink = function _matchNotCompileLink (link) {
    var links = this.config.noCompileLinks || [];
  
    for (var i = 0; i < links.length; i++) {
      var n = links[i];
      var re = cachedLinks[n] || (cachedLinks[n] = new RegExp(("^" + n + "$")));
  
      if (re.test(link)) {
        return link
      }
    }
  };
  
  Compiler.prototype._initRenderer = function _initRenderer () {
    var renderer = new marked.Renderer();
    var ref = this;
      var linkTarget = ref.linkTarget;
      var router = ref.router;
      var contentBase = ref.contentBase;
    var _self = this;
    var origin = {};
  
    /**
     * Render anchor tag
     * @link https://github.com/markedjs/marked#overriding-renderer-methods
     */
    origin.heading = renderer.heading = function (text, level) {
      var ref = getAndRemoveConfig(text);
        var str = ref.str;
        var config = ref.config;
      var nextToc = {level: level, title: str};
  
      if (/{docsify-ignore}/g.test(str)) {
        str = str.replace('{docsify-ignore}', '');
        nextToc.title = str;
        nextToc.ignoreSubHeading = true;
      }
  
      if (/{docsify-ignore-all}/g.test(str)) {
        str = str.replace('{docsify-ignore-all}', '');
        nextToc.title = str;
        nextToc.ignoreAllSubs = true;
      }
  
      var slug = slugify(config.id || str);
      var url = router.toURL(router.getCurrentPath(), {id: slug});
      nextToc.slug = url;
      _self.toc.push(nextToc);
  
      return ("<h" + level + " id=\"" + slug + "\"><a href=\"" + url + "\" data-id=\"" + slug + "\" class=\"anchor\"><span>" + str + "</span></a></h" + level + ">")
    };
    // Highlight code
    origin.code = renderer.code = function (code, lang) {
        if ( lang === void 0 ) lang = '';
  
      code = code.replace(/@DOCSIFY_QM@/g, '`');
      var hl = prism.highlight(
        code,
        prism.languages[lang] || prism.languages.markup
      );
  
      return ("<pre v-pre data-lang=\"" + lang + "\"><code class=\"lang-" + lang + "\">" + hl + "</code></pre>")
    };
    origin.link = renderer.link = function (href, title, text) {
        if ( title === void 0 ) title = '';
  
      var attrs = '';
  
      var ref = getAndRemoveConfig(title);
        var str = ref.str;
        var config = ref.config;
      title = str;
  
      if (
        !isAbsolutePath(href) &&
        !_self._matchNotCompileLink(href) &&
        !config.ignore
      ) {
        if (href === _self.config.homepage) {
          href = 'README';
        }
        href = router.toURL(href, null, router.getCurrentPath());
      } else {
        attrs += href.indexOf('mailto:') === 0 ? '' : (" target=\"" + linkTarget + "\"");
      }
  
      if (config.target) {
        attrs += ' target=' + config.target;
      }
  
      if (config.disabled) {
        attrs += ' disabled';
        href = 'javascript:void(0)';
      }
  
      if (title) {
        attrs += " title=\"" + title + "\"";
      }
  
      return ("<a href=\"" + href + "\"" + attrs + ">" + text + "</a>")
    };
    origin.paragraph = renderer.paragraph = function (text) {
      var result;
      if (/^!&gt;/.test(text)) {
        result = helper('tip', text);
      } else if (/^\?&gt;/.test(text)) {
        result = helper('warn', text);
      } else {
        result = "<p>" + text + "</p>";
      }
      return result
    };
    origin.image = renderer.image = function (href, title, text) {
      var url = href;
      var attrs = '';
  
      var ref = getAndRemoveConfig(title);
        var str = ref.str;
        var config = ref.config;
      title = str;
  
      if (config['no-zoom']) {
        attrs += ' data-no-zoom';
      }
  
      if (title) {
        attrs += " title=\"" + title + "\"";
      }
  
      var size = config.size;
      if (size) {
        var sizes = size.split('x');
        if (sizes[1]) {
          attrs += 'width=' + sizes[0] + ' height=' + sizes[1];
        } else {
          attrs += 'width=' + sizes[0];
        }
      }
  
      if (!isAbsolutePath(href)) {
        url = getPath(contentBase, getParentPath(router.getCurrentPath()), href);
      }
  
      return ("<img src=\"" + url + "\"data-origin=\"" + href + "\" alt=\"" + text + "\"" + attrs + ">")
    };
    origin.list = renderer.list = function (body, ordered, start) {
      var isTaskList = /<li class="task-list-item">/.test(body.split('class="task-list"')[0]);
      var isStartReq = start && start > 1;
      var tag = ordered ? 'ol' : 'ul';
      var tagAttrs = [
        (isTaskList ? 'class="task-list"' : ''),
        (isStartReq ? ("start=\"" + start + "\"") : '')
      ].join(' ').trim();
  
      return ("<" + tag + " " + tagAttrs + ">" + body + "</" + tag + ">")
    };
    origin.listitem = renderer.listitem = function (text) {
      var isTaskItem = /^(<input.*type="checkbox"[^>]*>)/.test(text);
      var html = isTaskItem ? ("<li class=\"task-list-item\"><label>" + text + "</label></li>") : ("<li>" + text + "</li>");
  
      return html
    };
  
    renderer.origin = origin;
  
    return renderer
  };
  
  /**
   * Compile sidebar
   */
  Compiler.prototype.sidebar = function sidebar (text, level) {
    var ref = this;
      var toc = ref.toc;
    var currentPath = this.router.getCurrentPath();
    var html = '';
  
    if (text) {
      html = this.compile(text);
    } else {
      for (var i = 0; i < toc.length; i++) {
        if (toc[i].ignoreSubHeading) {
          var deletedHeaderLevel = toc[i].level;
          toc.splice(i, 1);
          // Remove headers who are under current header
          for (var j = i; deletedHeaderLevel < toc[j].level && j < toc.length; j++) {
            toc.splice(j, 1) && j-- && i++;
          }
          i--;
        }
      }
      var tree$$1 = this.cacheTree[currentPath] || genTree(toc, level);
      html = tree(tree$$1, '<ul>{inner}</ul>');
      this.cacheTree[currentPath] = tree$$1;
    }
  
    return html
  };
  
  /**
   * Compile sub sidebar
   */
  Compiler.prototype.subSidebar = function subSidebar (level) {
    if (!level) {
      this.toc = [];
      return
    }
    var currentPath = this.router.getCurrentPath();
    var ref = this;
      var cacheTree = ref.cacheTree;
      var toc = ref.toc;
  
    toc[0] && toc[0].ignoreAllSubs && toc.splice(0);
    toc[0] && toc[0].level === 1 && toc.shift();
  
    for (var i = 0; i < toc.length; i++) {
      toc[i].ignoreSubHeading && toc.splice(i, 1) && i--;
    }
    var tree$$1 = cacheTree[currentPath] || genTree(toc, level);
  
    cacheTree[currentPath] = tree$$1;
    this.toc = [];
    return tree(tree$$1)
  };
  
  Compiler.prototype.article = function article (text) {
    return this.compile(text)
  };
  
  /**
   * Compile cover page
   */
  Compiler.prototype.cover = function cover$$1 (text) {
    var cacheToc = this.toc.slice();
    var html = this.compile(text);
  
    this.toc = cacheToc.slice();
  
    return html
  };
  
  var title = $.title;
  /**
   * Toggle button
   */
  function btn(el) {
    var toggle = function (_) { return body.classList.toggle('close'); };
  
    el = getNode(el);
    if (el == null) {
      return
    }
    on(el, 'click', function (e) {
      e.stopPropagation();
      toggle();
    });
  
    isMobile &&
      on(
        body,
        'click',
        function (_) { return body.classList.contains('close') && toggle(); }
      );
  }
  
  function collapse(el) {
    el = getNode(el);
    if (el == null) {
      return
    }
    on(el, 'click', function (ref) {
      var target = ref.target;
  
      if (
        target.nodeName === 'A' &&
        target.nextSibling &&
        target.nextSibling.classList.contains('app-sub-sidebar')
      ) {
        toggleClass(target.parentNode, 'collapse');
      }
    });
  }
  
  function sticky() {
    var cover = getNode('section.cover');
    if (!cover) {
      return
    }
    var coverHeight = cover.getBoundingClientRect().height;
  
    if (window.pageYOffset >= coverHeight || cover.classList.contains('hidden')) {
      toggleClass(body, 'add', 'sticky');
    } else {
      toggleClass(body, 'remove', 'sticky');
    }
  }
  
  /**
   * Get and active link
   * @param  {object} router
   * @param  {string|element}  el
   * @param  {Boolean} isParent   acitve parent
   * @param  {Boolean} autoTitle  auto set title
   * @return {element}
   */
  function getAndActive(router, el, isParent, autoTitle) {
    el = getNode(el);
    var links = [];
    if (el != null) {
      links = findAll(el, 'a');
    }
    var hash = decodeURI(router.toURL(router.getCurrentPath()));
    var target;
  
    links.sort(function (a, b) { return b.href.length - a.href.length; }).forEach(function (a) {
      var href = a.getAttribute('href');
      var node = isParent ? a.parentNode : a;
  
      if (hash.indexOf(href) === 0 && !target) {
        target = a;
        toggleClass(node, 'add', 'active');
      } else {
        toggleClass(node, 'remove', 'active');
      }
    });
  
    if (autoTitle) {
      $.title = target ? (target.title || ((target.innerText) + " - " + title)) : title;
    }
  
    return target
  }
  
  var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) { descriptor.writable = true; } Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) { defineProperties(Constructor.prototype, protoProps); } if (staticProps) { defineProperties(Constructor, staticProps); } return Constructor; }; }();
  
  function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
  
  var Tweezer = function () {
    function Tweezer() {
      var opts = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
  
      _classCallCheck(this, Tweezer);
  
      this.duration = opts.duration || 1000;
      this.ease = opts.easing || this._defaultEase;
      this.start = opts.start;
      this.end = opts.end;
  
      this.frame = null;
      this.next = null;
      this.isRunning = false;
      this.events = {};
      this.direction = this.start < this.end ? 'up' : 'down';
    }
  
    _createClass(Tweezer, [{
      key: 'begin',
      value: function begin() {
        if (!this.isRunning && this.next !== this.end) {
          this.frame = window.requestAnimationFrame(this._tick.bind(this));
        }
        return this;
      }
    }, {
      key: 'stop',
      value: function stop() {
        window.cancelAnimationFrame(this.frame);
        this.isRunning = false;
        this.frame = null;
        this.timeStart = null;
        this.next = null;
        return this;
      }
    }, {
      key: 'on',
      value: function on(name, handler) {
        this.events[name] = this.events[name] || [];
        this.events[name].push(handler);
        return this;
      }
    }, {
      key: 'emit',
      value: function emit(name, val) {
        var _this = this;
  
        var e = this.events[name];
        e && e.forEach(function (handler) {
          return handler.call(_this, val);
        });
      }
    }, {
      key: '_tick',
      value: function _tick(currentTime) {
        this.isRunning = true;
  
        var lastTick = this.next || this.start;
  
        if (!this.timeStart) { this.timeStart = currentTime; }
        this.timeElapsed = currentTime - this.timeStart;
        this.next = Math.round(this.ease(this.timeElapsed, this.start, this.end - this.start, this.duration));
  
        if (this._shouldTick(lastTick)) {
          this.emit('tick', this.next);
          this.frame = window.requestAnimationFrame(this._tick.bind(this));
        } else {
          this.emit('tick', this.end);
          this.emit('done', null);
        }
      }
    }, {
      key: '_shouldTick',
      value: function _shouldTick(lastTick) {
        return {
          up: this.next < this.end && lastTick <= this.next,
          down: this.next > this.end && lastTick >= this.next
        }[this.direction];
      }
    }, {
      key: '_defaultEase',
      value: function _defaultEase(t, b, c, d) {
        if ((t /= d / 2) < 1) { return c / 2 * t * t + b; }
        return -c / 2 * (--t * (t - 2) - 1) + b;
      }
    }]);
  
    return Tweezer;
  }();
  
  var nav = {};
  var hoverOver = false;
  var scroller = null;
  var enableScrollEvent = true;
  var coverHeight = 0;
  
  function scrollTo(el) {
    if (scroller) {
      scroller.stop();
    }
    enableScrollEvent = false;
    scroller = new Tweezer({
      start: window.pageYOffset,
      end: el.getBoundingClientRect().top + window.pageYOffset,
      duration: 500
    })
      .on('tick', function (v) { return window.scrollTo(0, v); })
      .on('done', function () {
        enableScrollEvent = true;
        scroller = null;
      })
      .begin();
  }
  
  function highlight(path) {
    if (!enableScrollEvent) {
      return
    }
    var sidebar = getNode('.sidebar');
    var anchors = findAll('.anchor');
    var wrap = find(sidebar, '.sidebar-nav');
    var active = find(sidebar, 'li.active');
    var doc = document.documentElement;
    var top = ((doc && doc.scrollTop) || document.body.scrollTop) - coverHeight;
    var last;
  
    for (var i = 0, len = anchors.length; i < len; i += 1) {
      var node = anchors[i];
  
      if (node.offsetTop > top) {
        if (!last) {
          last = node;
        }
        break
      } else {
        last = node;
      }
    }
    if (!last) {
      return
    }
    var li = nav[getNavKey(decodeURIComponent(path), last.getAttribute('data-id'))];
  
    if (!li || li === active) {
      return
    }
  
    active && active.classList.remove('active');
    li.classList.add('active');
    active = li;
  
    // Scroll into view
    // https://github.com/vuejs/vuejs.org/blob/master/themes/vue/source/js/common.js#L282-L297
    if (!hoverOver && body.classList.contains('sticky')) {
      var height = sidebar.clientHeight;
      var curOffset = 0;
      var cur = active.offsetTop + active.clientHeight + 40;
      var isInView =
        active.offsetTop >= wrap.scrollTop && cur <= wrap.scrollTop + height;
      var notThan = cur - curOffset < height;
      var top$1 = isInView ? wrap.scrollTop : notThan ? curOffset : cur - height;
  
      sidebar.scrollTop = top$1;
    }
  }
  
  function getNavKey(path, id) {
    return (path + "?id=" + id)
  }
  
  function scrollActiveSidebar(router) {
    var cover = find('.cover.show');
    coverHeight = cover ? cover.offsetHeight : 0;
  
    var sidebar = getNode('.sidebar');
    var lis = [];
    if (sidebar != null) {
      lis = findAll(sidebar, 'li');
    }
  
    for (var i = 0, len = lis.length; i < len; i += 1) {
      var li = lis[i];
      var a = li.querySelector('a');
      if (!a) {
        continue
      }
      var href = a.getAttribute('href');
  
      if (href !== '/') {
        var ref = router.parse(href);
        var id = ref.query.id;
        var path$1 = ref.path;
        if (id) {
          href = getNavKey(path$1, id);
        }
      }
  
      if (href) {
        nav[decodeURIComponent(href)] = li;
      }
    }
  
    if (isMobile) {
      return
    }
    var path = router.getCurrentPath();
    off('scroll', function () { return highlight(path); });
    on('scroll', function () { return highlight(path); });
    on(sidebar, 'mouseover', function () {
      hoverOver = true;
    });
    on(sidebar, 'mouseleave', function () {
      hoverOver = false;
    });
  }
  
  function scrollIntoView(path, id) {
    if (!id) {
      return
    }
  
    var section = find('#' + id);
    section && scrollTo(section);
  
    var li = nav[getNavKey(path, id)];
    var sidebar = getNode('.sidebar');
    var active = find(sidebar, 'li.active');
    active && active.classList.remove('active');
    li && li.classList.add('active');
  }
  
  var scrollEl = $.scrollingElement || $.documentElement;
  
  function scroll2Top(offset) {
    if ( offset === void 0 ) offset = 0;
  
    scrollEl.scrollTop = offset === true ? 0 : Number(offset);
  }
  
  var cached$1 = {};
  
  function walkFetchEmbed(ref, cb) {
    var embedTokens = ref.embedTokens;
    var compile = ref.compile;
    var fetch = ref.fetch;
  
    var token;
    var step = 0;
    var count = 1;
  
    if (!embedTokens.length) {
      return cb({})
    }
  
    while ((token = embedTokens[step++])) {
      var next = (function (token) {
        return function (text) {
          var embedToken;
          if (text) {
            if (token.embed.type === 'markdown') {
              embedToken = compile.lexer(text);
            } else if (token.embed.type === 'code') {
              if (token.embed.fragment) {
                var fragment = token.embed.fragment;
                var pattern = new RegExp(("(?:###|\\/\\/\\/)\\s*\\[" + fragment + "\\]([\\s\\S]*)(?:###|\\/\\/\\/)\\s*\\[" + fragment + "\\]"));
                text = ((text.match(pattern) || [])[1] || '').trim();
              }
              embedToken = compile.lexer(
                '```' +
                  token.embed.lang +
                  '\n' +
                  text.replace(/`/g, '@DOCSIFY_QM@') +
                  '\n```\n'
              );
            } else if (token.embed.type === 'mermaid') {
              embedToken = [
                {type: 'html', text: ("<div class=\"mermaid\">\n" + text + "\n</div>")}
              ];
              embedToken.links = {};
            } else {
              embedToken = [{type: 'html', text: text}];
              embedToken.links = {};
            }
          }
          cb({token: token, embedToken: embedToken});
          if (++count >= step) {
            cb({});
          }
        }
      })(token);
  
      if (token.embed.url) {
        {
          get(token.embed.url).then(next);
        }
      } else {
        next(token.embed.html);
      }
    }
  }
  
  function prerenderEmbed(ref, done) {
    var compiler = ref.compiler;
    var raw = ref.raw; if ( raw === void 0 ) raw = '';
    var fetch = ref.fetch;
  
    var hit = cached$1[raw];
    if (hit) {
      var copy = hit.slice();
      copy.links = hit.links;
      return done(copy)
    }
  
    var compile = compiler._marked;
    var tokens = compile.lexer(raw);
    var embedTokens = [];
    var linkRE = compile.InlineLexer.rules.link;
    var links = tokens.links;
  
    tokens.forEach(function (token, index) {
      if (token.type === 'paragraph') {
        token.text = token.text.replace(
          new RegExp(linkRE.source, 'g'),
          function (src, filename, href, title) {
            var embed = compiler.compileEmbed(href, title);
  
            if (embed) {
              embedTokens.push({
                index: index,
                embed: embed
              });
            }
  
            return src
          }
        );
      }
    });
  
    var moveIndex = 0;
    walkFetchEmbed({compile: compile, embedTokens: embedTokens, fetch: fetch}, function (ref) {
      var embedToken = ref.embedToken;
      var token = ref.token;
  
      if (token) {
        var index = token.index + moveIndex;
  
        merge(links, embedToken.links);
  
        tokens = tokens
          .slice(0, index)
          .concat(embedToken, tokens.slice(index + 1));
        moveIndex += embedToken.length - 1;
      } else {
        cached$1[raw] = tokens.concat();
        tokens.links = cached$1[raw].links = links;
        done(tokens);
      }
    });
  }
  
  function executeScript() {
    var script = findAll('.markdown-section>script')
      .filter(function (s) { return !/template/.test(s.type); })[0];
    if (!script) {
      return false
    }
    var code = script.innerText.trim();
    if (!code) {
      return false
    }
  
    setTimeout(function (_) {
      window.__EXECUTE_RESULT__ = new Function(code)();
    }, 0);
  }
  
  function formatUpdated(html, updated, fn) {
    updated =
      typeof fn === 'function' ?
        fn(updated) :
        typeof fn === 'string' ?
          tinydate(fn)(new Date(updated)) :
          updated;
  
    return html.replace(/{docsify-updated}/g, updated)
  }
  
  function renderMain(html) {
    if (!html) {
      html = '<h1>404 - Not found</h1>';
    }
  
    this._renderTo('.markdown-section', html);
    // Render sidebar with the TOC
    !this.config.loadSidebar && this._renderSidebar();
  
    // Execute script
    if (
      this.config.executeScript !== false &&
      typeof window.Vue !== 'undefined' &&
      !executeScript()
    ) {
      setTimeout(function (_) {
        var vueVM = window.__EXECUTE_RESULT__;
        vueVM && vueVM.$destroy && vueVM.$destroy();
        window.__EXECUTE_RESULT__ = new window.Vue().$mount('#main');
      }, 0);
    } else {
      this.config.executeScript && executeScript();
    }
  }
  
  function renderNameLink(vm) {
    var el = getNode('.app-name-link');
    var nameLink = vm.config.nameLink;
    var path = vm.route.path;
  
    if (!el) {
      return
    }
  
    if (isPrimitive(vm.config.nameLink)) {
      el.setAttribute('href', nameLink);
    } else if (typeof nameLink === 'object') {
      var match = Object.keys(nameLink).filter(function (key) { return path.indexOf(key) > -1; })[0];
  
      el.setAttribute('href', nameLink[match]);
    }
  }
  
  function renderMixin(proto) {
    proto._renderTo = function (el, content, replace) {
      var node = getNode(el);
      if (node) {
        node[replace ? 'outerHTML' : 'innerHTML'] = content;
      }
    };
  
    proto._renderSidebar = function (text) {
      var ref = this.config;
      var maxLevel = ref.maxLevel;
      var subMaxLevel = ref.subMaxLevel;
      var loadSidebar = ref.loadSidebar;
  
      this._renderTo('.sidebar-nav', this.compiler.sidebar(text, maxLevel));
      var activeEl = getAndActive(this.router, '.sidebar-nav', true, true);
      if (loadSidebar && activeEl) {
        activeEl.parentNode.innerHTML +=
          this.compiler.subSidebar(subMaxLevel) || '';
      } else {
        // Reset toc
        this.compiler.subSidebar();
      }
      // Bind event
      this._bindEventOnRendered(activeEl);
    };
  
    proto._bindEventOnRendered = function (activeEl) {
      var ref = this.config;
      var autoHeader = ref.autoHeader;
      var auto2top = ref.auto2top;
  
      scrollActiveSidebar(this.router);
  
      if (autoHeader && activeEl) {
        var main$$1 = getNode('#main');
        var firstNode = main$$1.children[0];
        if (firstNode && firstNode.tagName !== 'H1') {
          var h1 = create('h1');
          h1.innerText = activeEl.innerText;
          before(main$$1, h1);
        }
      }
  
      auto2top && scroll2Top(auto2top);
    };
  
    proto._renderNav = function (text) {
      text && this._renderTo('nav', this.compiler.compile(text));
      if (this.config.loadNavbar) {
        getAndActive(this.router, 'nav');
      }
    };
  
    proto._renderMain = function (text, opt, next) {
      var this$1 = this;
      if ( opt === void 0 ) opt = {};
  
      if (!text) {
        return renderMain.call(this, text)
      }
  
      callHook(this, 'beforeEach', text, function (result) {
        var html;
        var callback = function () {
          if (opt.updatedAt) {
            html = formatUpdated(html, opt.updatedAt, this$1.config.formatUpdated);
          }
  
          callHook(this$1, 'afterEach', html, function (text) { return renderMain.call(this$1, text); });
        };
        if (this$1.isHTML) {
          html = this$1.result = text;
          callback();
          next();
        } else {
          prerenderEmbed(
            {
              compiler: this$1.compiler,
              raw: result
            },
            function (tokens) {
              html = this$1.compiler.compile(tokens);
              callback();
              next();
            }
          );
        }
      });
    };
  
    proto._renderCover = function (text, coverOnly) {
      var el = getNode('.cover');
  
      toggleClass(getNode('main'), coverOnly ? 'add' : 'remove', 'hidden');
      if (!text) {
        toggleClass(el, 'remove', 'show');
        return
      }
      toggleClass(el, 'add', 'show');
  
      var html = this.coverIsHTML ? text : this.compiler.cover(text);
  
      var m = html
        .trim()
        .match('<p><img.*?data-origin="(.*?)"[^a]+alt="(.*?)">([^<]*?)</p>$');
  
      if (m) {
        if (m[2] === 'color') {
          el.style.background = m[1] + (m[3] || '');
        } else {
          var path = m[1];
  
          toggleClass(el, 'add', 'has-mask');
          if (!isAbsolutePath(m[1])) {
            path = getPath(this.router.getBasePath(), m[1]);
          }
          el.style.backgroundImage = "url(" + path + ")";
          el.style.backgroundSize = 'cover';
          el.style.backgroundPosition = 'center center';
        }
        html = html.replace(m[0], '');
      }
  
      this._renderTo('.cover-main', html);
      sticky();
    };
  
    proto._updateRender = function () {
      // Render name link
      renderNameLink(this);
    };
  }
  
  function initRender(vm) {
    var config = vm.config;
  
    // Init markdown compiler
    vm.compiler = new Compiler(config, vm.router);
    if (inBrowser) {
      window.__current_docsify_compiler__ = vm.compiler;
    }
  
    var id = config.el || '#app';
    var navEl = find('nav') || create('nav');
  
    var el = find(id);
    var html = '';
    var navAppendToTarget = body;
  
    if (el) {
      if (config.repo) {
        html += corner(config.repo);
      }
      if (config.coverpage) {
        html += cover();
      }
  
      if (config.logo) {
        var isBase64 = /^data:image/.test(config.logo);
        var isExternal = /(?:http[s]?:)?\/\//.test(config.logo);
        var isRelative = /^\./.test(config.logo);
  
        if (!isBase64 && !isExternal && !isRelative) {
          config.logo = getPath(vm.router.getBasePath(), config.logo);
        }
      }
  
      html += main(config);
      // Render main app
      vm._renderTo(el, html, true);
    } else {
      vm.rendered = true;
    }
  
    if (config.mergeNavbar && isMobile) {
      navAppendToTarget = find('.sidebar');
    } else {
      navEl.classList.add('app-nav');
  
      if (!config.repo) {
        navEl.classList.add('no-badge');
      }
    }
  
    // Add nav
    if (config.loadNavbar) {
      before(navAppendToTarget, navEl);
    }
  
    if (config.themeColor) {
      $.head.appendChild(
        create('div', theme(config.themeColor)).firstElementChild
      );
      // Polyfll
      cssVars(config.themeColor);
    }
    vm._updateRender();
    toggleClass(body, 'ready');
  }
  
  var cached$2 = {};
  
  function getAlias(path, alias, last) {
    var match = Object.keys(alias).filter(function (key) {
      var re = cached$2[key] || (cached$2[key] = new RegExp(("^" + key + "$")));
      return re.test(path) && path !== last
    })[0];
  
    return match ?
      getAlias(path.replace(cached$2[match], alias[match]), alias, path) :
      path
  }
  
  function getFileName(path, ext) {
    return new RegExp(("\\.(" + (ext.replace(/^\./, '')) + "|html)$"), 'g').test(path) ?
      path :
      /\/$/g.test(path) ? (path + "README" + ext) : ("" + path + ext)
  }
  
  var History = function History(config) {
    this.config = config;
  };
  
  History.prototype.getBasePath = function getBasePath () {
    return this.config.basePath
  };
  
  History.prototype.getFile = function getFile (path, isRelative) {
      if ( path === void 0 ) path = this.getCurrentPath();
  
    var ref = this;
      var config = ref.config;
    var base = this.getBasePath();
    var ext = typeof config.ext === 'string' ? config.ext : '.md';
  
    path = config.alias ? getAlias(path, config.alias) : path;
    path = getFileName(path, ext);
    path = path === ("/README" + ext) ? config.homepage || path : path;
    path = isAbsolutePath(path) ? path : getPath(base, path);
  
    if (isRelative) {
      path = path.replace(new RegExp(("^" + base)), '');
    }
  
    return path
  };
  
  History.prototype.onchange = function onchange (cb) {
      if ( cb === void 0 ) cb = noop;
  
    cb();
  };
  
  History.prototype.getCurrentPath = function getCurrentPath () {};
  
  History.prototype.normalize = function normalize () {};
  
  History.prototype.parse = function parse () {};
  
  History.prototype.toURL = function toURL (path, params, currentRoute) {
    var local = currentRoute && path[0] === '#';
    var route = this.parse(replaceSlug(path));
  
    route.query = merge({}, route.query, params);
    path = route.path + stringifyQuery(route.query);
    path = path.replace(/\.md(\?)|\.md$/, '$1');
  
    if (local) {
      var idIndex = currentRoute.indexOf('?');
      path =
        (idIndex > 0 ? currentRoute.substring(0, idIndex) : currentRoute) + path;
    }
  
    if (this.config.relativePath && path.indexOf('/') !== 0) {
      var currentDir = currentRoute.substring(0, currentRoute.lastIndexOf('/') + 1);
      return cleanPath(resolvePath(currentDir + path))
    }
    return cleanPath('/' + path)
  };
  
  function replaceHash(path) {
    var i = location.href.indexOf('#');
    location.replace(location.href.slice(0, i >= 0 ? i : 0) + '#' + path);
  }
  
  var HashHistory = (function (History$$1) {
    function HashHistory(config) {
      History$$1.call(this, config);
      this.mode = 'hash';
    }
  
    if ( History$$1 ) HashHistory.__proto__ = History$$1;
    HashHistory.prototype = Object.create( History$$1 && History$$1.prototype );
    HashHistory.prototype.constructor = HashHistory;
  
    HashHistory.prototype.getBasePath = function getBasePath () {
      var path = window.location.pathname || '';
      var base = this.config.basePath;
  
      return /^(\/|https?:)/g.test(base) ? base : cleanPath(path + '/' + base)
    };
  
    HashHistory.prototype.getCurrentPath = function getCurrentPath () {
      // We can't use location.hash here because it's not
      // consistent across browsers - Firefox will pre-decode it!
      var href = location.href;
      var index = href.indexOf('#');
      return index === -1 ? '' : href.slice(index + 1)
    };
  
    HashHistory.prototype.onchange = function onchange (cb) {
      if ( cb === void 0 ) cb = noop;
  
      on('hashchange', cb);
    };
  
    HashHistory.prototype.normalize = function normalize () {
      var path = this.getCurrentPath();
  
      path = replaceSlug(path);
  
      if (path.charAt(0) === '/') {
        return replaceHash(path)
      }
      replaceHash('/' + path);
    };
  
    /**
     * Parse the url
     * @param {string} [path=location.herf]
     * @return {object} { path, query }
     */
    HashHistory.prototype.parse = function parse (path) {
      if ( path === void 0 ) path = location.href;
  
      var query = '';
  
      var hashIndex = path.indexOf('#');
      if (hashIndex >= 0) {
        path = path.slice(hashIndex + 1);
      }
  
      var queryIndex = path.indexOf('?');
      if (queryIndex >= 0) {
        query = path.slice(queryIndex + 1);
        path = path.slice(0, queryIndex);
      }
  
      return {
        path: path,
        file: this.getFile(path, true),
        query: parseQuery(query)
      }
    };
  
    HashHistory.prototype.toURL = function toURL (path, params, currentRoute) {
      return '#' + History$$1.prototype.toURL.call(this, path, params, currentRoute)
    };
  
    return HashHistory;
  }(History));
  
  var HTML5History = (function (History$$1) {
    function HTML5History(config) {
      History$$1.call(this, config);
      this.mode = 'history';
    }
  
    if ( History$$1 ) HTML5History.__proto__ = History$$1;
    HTML5History.prototype = Object.create( History$$1 && History$$1.prototype );
    HTML5History.prototype.constructor = HTML5History;
  
    HTML5History.prototype.getCurrentPath = function getCurrentPath () {
      var base = this.getBasePath();
      var path = window.location.pathname;
  
      if (base && path.indexOf(base) === 0) {
        path = path.slice(base.length);
      }
  
      return (path || '/') + window.location.search + window.location.hash
    };
  
    HTML5History.prototype.onchange = function onchange (cb) {
      if ( cb === void 0 ) cb = noop;
  
      on('click', function (e) {
        var el = e.target.tagName === 'A' ? e.target : e.target.parentNode;
  
        if (el.tagName === 'A' && !/_blank/.test(el.target)) {
          e.preventDefault();
          var url = el.href;
          window.history.pushState({key: url}, '', url);
          cb();
        }
      });
  
      on('popstate', cb);
    };
  
    /**
     * Parse the url
     * @param {string} [path=location.href]
     * @return {object} { path, query }
     */
    HTML5History.prototype.parse = function parse (path) {
      if ( path === void 0 ) path = location.href;
  
      var query = '';
  
      var queryIndex = path.indexOf('?');
      if (queryIndex >= 0) {
        query = path.slice(queryIndex + 1);
        path = path.slice(0, queryIndex);
      }
  
      var base = getPath(location.origin);
      var baseIndex = path.indexOf(base);
  
      if (baseIndex > -1) {
        path = path.slice(baseIndex + base.length);
      }
  
      return {
        path: path,
        file: this.getFile(path),
        query: parseQuery(query)
      }
    };
  
    return HTML5History;
  }(History));
  
  function routerMixin(proto) {
    proto.route = {};
  }
  
  var lastRoute = {};
  
  function updateRender(vm) {
    vm.router.normalize();
    vm.route = vm.router.parse();
    body.setAttribute('data-page', vm.route.file);
  }
  
  function initRouter(vm) {
    var config = vm.config;
    var mode = config.routerMode || 'hash';
    var router;
  
    if (mode === 'history' && supportsPushState) {
      router = new HTML5History(config);
    } else {
      router = new HashHistory(config);
    }
  
    vm.router = router;
    updateRender(vm);
    lastRoute = vm.route;
  
    router.onchange(function (_) {
      updateRender(vm);
      vm._updateRender();
  
      if (lastRoute.path === vm.route.path) {
        vm.$resetEvents();
        return
      }
  
      vm.$fetch();
      lastRoute = vm.route;
    });
  }
  
  function eventMixin(proto) {
    proto.$resetEvents = function () {
      scrollIntoView(this.route.path, this.route.query.id);
  
      if (this.config.loadNavbar) {
        getAndActive(this.router, 'nav');
      }
    };
  }
  
  function initEvent(vm) {
    // Bind toggle button
    btn('button.sidebar-toggle', vm.router);
    collapse('.sidebar', vm.router);
    // Bind sticky effect
    if (vm.config.coverpage) {
      !isMobile && on('scroll', sticky);
    } else {
      body.classList.add('sticky');
    }
  }
  
  function loadNested(path, qs, file, next, vm, first) {
    path = first ? path : path.replace(/\/$/, '');
    path = getParentPath(path);
  
    if (!path) {
      return
    }
  
    get(
      vm.router.getFile(path + file) + qs,
      false,
      vm.config.requestHeaders
    ).then(next, function (_) { return loadNested(path, qs, file, next, vm); });
  }
  
  function fetchMixin(proto) {
    var last;
  
    var abort = function () { return last && last.abort && last.abort(); };
    var request = function (url, hasbar, requestHeaders) {
      abort();
      last = get(url, true, requestHeaders);
      return last
    };
  
    var get404Path = function (path, config) {
      var notFoundPage = config.notFoundPage;
      var ext = config.ext;
      var defaultPath = '_404' + (ext || '.md');
      var key;
      var path404;
  
      switch (typeof notFoundPage) {
        case 'boolean':
          path404 = defaultPath;
          break
        case 'string':
          path404 = notFoundPage;
          break
  
        case 'object':
          key = Object.keys(notFoundPage)
            .sort(function (a, b) { return b.length - a.length; })
            .find(function (key) { return path.match(new RegExp('^' + key)); });
  
          path404 = (key && notFoundPage[key]) || defaultPath;
          break
  
        default:
          break
      }
  
      return path404
    };
  
    proto._loadSideAndNav = function (path, qs, loadSidebar, cb) {
      var this$1 = this;
  
      return function () {
        if (!loadSidebar) {
          return cb()
        }
  
        var fn = function (result) {
          this$1._renderSidebar(result);
          cb();
        };
  
        // Load sidebar
        loadNested(path, qs, loadSidebar, fn, this$1, true);
      }
    };
  
    proto._fetch = function (cb) {
      var this$1 = this;
      if ( cb === void 0 ) cb = noop;
  
      var ref = this.route;
      var path = ref.path;
      var query = ref.query;
      var qs = stringifyQuery(query, ['id']);
      var ref$1 = this.config;
      var loadNavbar = ref$1.loadNavbar;
      var requestHeaders = ref$1.requestHeaders;
      var loadSidebar = ref$1.loadSidebar;
      // Abort last request
  
      var file = this.router.getFile(path);
      var req = request(file + qs, true, requestHeaders);
  
      // Current page is html
      this.isHTML = /\.html$/g.test(file);
  
      // Load main content
      req.then(
        function (text, opt) { return this$1._renderMain(
            text,
            opt,
            this$1._loadSideAndNav(path, qs, loadSidebar, cb)
          ); },
        function (_) {
          this$1._fetchFallbackPage(file, qs, cb) || this$1._fetch404(file, qs, cb);
        }
      );
  
      // Load nav
      loadNavbar &&
        loadNested(
          path,
          qs,
          loadNavbar,
          function (text) { return this$1._renderNav(text); },
          this,
          true
        );
    };
  
    proto._fetchCover = function () {
      var this$1 = this;
  
      var ref = this.config;
      var coverpage = ref.coverpage;
      var requestHeaders = ref.requestHeaders;
      var query = this.route.query;
      var root = getParentPath(this.route.path);
  
      if (coverpage) {
        var path = null;
        var routePath = this.route.path;
        if (typeof coverpage === 'string') {
          if (routePath === '/') {
            path = coverpage;
          }
        } else if (Array.isArray(coverpage)) {
          path = coverpage.indexOf(routePath) > -1 && '_coverpage';
        } else {
          var cover = coverpage[routePath];
          path = cover === true ? '_coverpage' : cover;
        }
  
        var coverOnly = Boolean(path) && this.config.onlyCover;
        if (path) {
          path = this.router.getFile(root + path);
          this.coverIsHTML = /\.html$/g.test(path);
          get(path + stringifyQuery(query, ['id']), false, requestHeaders).then(
            function (text) { return this$1._renderCover(text, coverOnly); }
          );
        } else {
          this._renderCover(null, coverOnly);
        }
        return coverOnly
      }
    };
  
    proto.$fetch = function (cb) {
      var this$1 = this;
      if ( cb === void 0 ) cb = noop;
  
      var done = function () {
        callHook(this$1, 'doneEach');
        cb();
      };
  
      var onlyCover = this._fetchCover();
  
      if (onlyCover) {
        done();
      } else {
        this._fetch(function () {
          this$1.$resetEvents();
          done();
        });
      }
    };
  
    proto._fetchFallbackPage = function (path, qs, cb) {
      var this$1 = this;
      if ( cb === void 0 ) cb = noop;
  
      var ref = this.config;
      var requestHeaders = ref.requestHeaders;
      var fallbackLanguages = ref.fallbackLanguages;
      var loadSidebar = ref.loadSidebar;
  
      if (!fallbackLanguages) {
        return false
      }
  
      var local = path.split('/')[1];
  
      if (fallbackLanguages.indexOf(local) === -1) {
        return false
      }
      var newPath = path.replace(new RegExp(("^/" + local)), '');
      var req = request(newPath + qs, true, requestHeaders);
  
      req.then(
        function (text, opt) { return this$1._renderMain(
            text,
            opt,
            this$1._loadSideAndNav(path, qs, loadSidebar, cb)
          ); },
        function () { return this$1._fetch404(path, qs, cb); }
      );
  
      return true
    };
    /**
     * Load the 404 page
     * @param path
     * @param qs
     * @param cb
     * @returns {*}
     * @private
     */
    proto._fetch404 = function (path, qs, cb) {
      var this$1 = this;
      if ( cb === void 0 ) cb = noop;
  
      var ref = this.config;
      var loadSidebar = ref.loadSidebar;
      var requestHeaders = ref.requestHeaders;
      var notFoundPage = ref.notFoundPage;
  
      var fnLoadSideAndNav = this._loadSideAndNav(path, qs, loadSidebar, cb);
      if (notFoundPage) {
        var path404 = get404Path(path, this.config);
  
        request(this.router.getFile(path404), true, requestHeaders).then(
          function (text, opt) { return this$1._renderMain(text, opt, fnLoadSideAndNav); },
          function () { return this$1._renderMain(null, {}, fnLoadSideAndNav); }
        );
        return true
      }
  
      this._renderMain(null, {}, fnLoadSideAndNav);
      return false
    };
  }
  
  function initFetch(vm) {
    var ref = vm.config;
    var loadSidebar = ref.loadSidebar;
  
    // Server-Side Rendering
    if (vm.rendered) {
      var activeEl = getAndActive(vm.router, '.sidebar-nav', true, true);
      if (loadSidebar && activeEl) {
        activeEl.parentNode.innerHTML += window.__SUB_SIDEBAR__;
      }
      vm._bindEventOnRendered(activeEl);
      vm.$resetEvents();
      callHook(vm, 'doneEach');
      callHook(vm, 'ready');
    } else {
      vm.$fetch(function (_) { return callHook(vm, 'ready'); });
    }
  }
  
  function initMixin(proto) {
    proto._init = function () {
      var vm = this;
      vm.config = config();
  
      initLifecycle(vm); // Init hooks
      initPlugin(vm); // Install plugins
      callHook(vm, 'init');
      initRouter(vm); // Add router
      initRender(vm); // Render base DOM
      initEvent(vm); // Bind events
      initFetch(vm); // Fetch data
      callHook(vm, 'mounted');
    };
  }
  
  function initPlugin(vm) {
    [].concat(vm.config.plugins).forEach(function (fn) { return isFn(fn) && fn(vm._lifecycle, vm); });
  }
  
  
  
  var util = Object.freeze({
    cached: cached,
    hyphenate: hyphenate,
    hasOwn: hasOwn,
    merge: merge,
    isPrimitive: isPrimitive,
    noop: noop,
    isFn: isFn,
    inBrowser: inBrowser,
    isMobile: isMobile,
    supportsPushState: supportsPushState,
    parseQuery: parseQuery,
    stringifyQuery: stringifyQuery,
    isAbsolutePath: isAbsolutePath,
    getParentPath: getParentPath,
    cleanPath: cleanPath,
    resolvePath: resolvePath,
    getPath: getPath,
    replaceSlug: replaceSlug
  });
  
  function initGlobalAPI () {
    window.Docsify = {
      util: util,
      dom: dom,
      get: get,
      slugify: slugify,
      version: '4.9.4'
    };
    window.DocsifyCompiler = Compiler;
    window.marked = marked;
    window.Prism = prism;
  }
  
  /**
   * Fork https://github.com/bendrucker/document-ready/blob/master/index.js
   */
  function ready(callback) {
    var state = document.readyState;
  
    if (state === 'complete' || state === 'interactive') {
      return setTimeout(callback, 0)
    }
  
    document.addEventListener('DOMContentLoaded', callback);
  }
  
  function Docsify() {
    this._init();
  }
  
  var proto = Docsify.prototype;
  
  initMixin(proto);
  routerMixin(proto);
  renderMixin(proto);
  fetchMixin(proto);
  eventMixin(proto);
  
  /**
   * Global API
   */
  initGlobalAPI();
  
  /**
   * Run Docsify
   */
  ready(function (_) { return new Docsify(); });
  
  }());