text: /*!
   * HTML Parser By John Resig (ejohn.org)
   * Modified by Juriy "kangax" Zaytsev
   * Original code by Erik Arvidsson, Mozilla Public License
   * http://erik.eae.net/simplehtmlparser/simplehtmlparser.js
   */
  
  /*
   * // Use like so:
   * HTMLParser(htmlString, {
   *     start: function(tag, attrs, unary) {},
   *     end: function(tag) {},
   *     chars: function(text) {},
   *     comment: function(text) {}
   * });
   *
   * // or to get an XML string:
   * HTMLtoXML(htmlString);
   *
   * // or to get an XML DOM Document
   * HTMLtoDOM(htmlString);
   *
   * // or to inject into an existing document/DOM node
   * HTMLtoDOM(htmlString, document);
   * HTMLtoDOM(htmlString, document.body);
   *
   */
  
  /* global ActiveXObject, DOMDocument */
  
  import { createMapFromString, replaceAsync } from './utils.js';
  
  function makeMap(values) {
    return createMapFromString(values, true);
  }
  
  // Regular Expressions for parsing tags and attributes
  const singleAttrIdentifier = /([^\s"'<>/=]+)/;
  const singleAttrAssigns = [/=/];
  const singleAttrValues = [
    // attr value double quotes
    /"([^"]*)"+/.source,
    // attr value, single quotes
    /'([^']*)'+/.source,
    // attr value, no quotes
    /([^ \t\n\f\r"'`=<>]+)/.source
  ];
  // https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
  const qnameCapture = (function () {
    // based on https://www.npmjs.com/package/ncname
    const combiningChar = '\\u0300-\\u0345\\u0360\\u0361\\u0483-\\u0486\\u0591-\\u05A1\\u05A3-\\u05B9\\u05BB-\\u05BD\\u05BF\\u05C1\\u05C2\\u05C4\\u064B-\\u0652\\u0670\\u06D6-\\u06E4\\u06E7\\u06E8\\u06EA-\\u06ED\\u0901-\\u0903\\u093C\\u093E-\\u094D\\u0951-\\u0954\\u0962\\u0963\\u0981-\\u0983\\u09BC\\u09BE-\\u09C4\\u09C7\\u09C8\\u09CB-\\u09CD\\u09D7\\u09E2\\u09E3\\u0A02\\u0A3C\\u0A3E-\\u0A42\\u0A47\\u0A48\\u0A4B-\\u0A4D\\u0A70\\u0A71\\u0A81-\\u0A83\\u0ABC\\u0ABE-\\u0AC5\\u0AC7-\\u0AC9\\u0ACB-\\u0ACD\\u0B01-\\u0B03\\u0B3C\\u0B3E-\\u0B43\\u0B47\\u0B48\\u0B4B-\\u0B4D\\u0B56\\u0B57\\u0B82\\u0B83\\u0BBE-\\u0BC2\\u0BC6-\\u0BC8\\u0BCA-\\u0BCD\\u0BD7\\u0C01-\\u0C03\\u0C3E-\\u0C44\\u0C46-\\u0C48\\u0C4A-\\u0C4D\\u0C55\\u0C56\\u0C82\\u0C83\\u0CBE-\\u0CC4\\u0CC6-\\u0CC8\\u0CCA-\\u0CCD\\u0CD5\\u0CD6\\u0D02\\u0D03\\u0D3E-\\u0D43\\u0D46-\\u0D48\\u0D4A-\\u0D4D\\u0D57\\u0E31\\u0E34-\\u0E3A\\u0E47-\\u0E4E\\u0EB1\\u0EB4-\\u0EB9\\u0EBB\\u0EBC\\u0EC8-\\u0ECD\\u0F18\\u0F19\\u0F35\\u0F37\\u0F39\\u0F3E\\u0F3F\\u0F71-\\u0F84\\u0F86-\\u0F8B\\u0F90-\\u0F95\\u0F97\\u0F99-\\u0FAD\\u0FB1-\\u0FB7\\u0FB9\\u20D0-\\u20DC\\u20E1\\u302A-\\u302F\\u3099\\u309A';
    const digit = '0-9\\u0660-\\u0669\\u06F0-\\u06F9\\u0966-\\u096F\\u09E6-\\u09EF\\u0A66-\\u0A6F\\u0AE6-\\u0AEF\\u0B66-\\u0B6F\\u0BE7-\\u0BEF\\u0C66-\\u0C6F\\u0CE6-\\u0CEF\\u0D66-\\u0D6F\\u0E50-\\u0E59\\u0ED0-\\u0ED9\\u0F20-\\u0F29';
    const extender = '\\xB7\\u02D0\\u02D1\\u0387\\u0640\\u0E46\\u0EC6\\u3005\\u3031-\\u3035\\u309D\\u309E\\u30FC-\\u30FE';
    const letter = 'A-Za-z\\xC0-\\xD6\\xD8-\\xF6\\xF8-\\u0131\\u0134-\\u013E\\u0141-\\u0148\\u014A-\\u017E\\u0180-\\u01C3\\u01CD-\\u01F0\\u01F4\\u01F5\\u01FA-\\u0217\\u0250-\\u02A8\\u02BB-\\u02C1\\u0386\\u0388-\\u038A\\u038C\\u038E-\\u03A1\\u03A3-\\u03CE\\u03D0-\\u03D6\\u03DA\\u03DC\\u03DE\\u03E0\\u03E2-\\u03F3\\u0401-\\u040C\\u040E-\\u044F\\u0451-\\u045C\\u045E-\\u0481\\u0490-\\u04C4\\u04C7\\u04C8\\u04CB\\u04CC\\u04D0-\\u04EB\\u04EE-\\u04F5\\u04F8\\u04F9\\u0531-\\u0556\\u0559\\u0561-\\u0586\\u05D0-\\u05EA\\u05F0-\\u05F2\\u0621-\\u063A\\u0641-\\u064A\\u0671-\\u06B7\\u06BA-\\u06BE\\u06C0-\\u06CE\\u06D0-\\u06D3\\u06D5\\u06E5\\u06E6\\u0905-\\u0939\\u093D\\u0958-\\u0961\\u0985-\\u098C\\u098F\\u0990\\u0993-\\u09A8\\u09AA-\\u09B0\\u09B2\\u09B6-\\u09B9\\u09DC\\u09DD\\u09DF-\\u09E1\\u09F0\\u09F1\\u0A05-\\u0A0A\\u0A0F\\u0A10\\u0A13-\\u0A28\\u0A2A-\\u0A30\\u0A32\\u0A33\\u0A35\\u0A36\\u0A38\\u0A39\\u0A59-\\u0A5C\\u0A5E\\u0A72-\\u0A74\\u0A85-\\u0A8B\\u0A8D\\u0A8F-\\u0A91\\u0A93-\\u0AA8\\u0AAA-\\u0AB0\\u0AB2\\u0AB3\\u0AB5-\\u0AB9\\u0ABD\\u0AE0\\u0B05-\\u0B0C\\u0B0F\\u0B10\\u0B13-\\u0B28\\u0B2A-\\u0B30\\u0B32\\u0B33\\u0B36-\\u0B39\\u0B3D\\u0B5C\\u0B5D\\u0B5F-\\u0B61\\u0B85-\\u0B8A\\u0B8E-\\u0B90\\u0B92-\\u0B95\\u0B99\\u0B9A\\u0B9C\\u0B9E\\u0B9F\\u0BA3\\u0BA4\\u0BA8-\\u0BAA\\u0BAE-\\u0BB5\\u0BB7-\\u0BB9\\u0C05-\\u0C0C\\u0C0E-\\u0C10\\u0C12-\\u0C28\\u0C2A-\\u0C33\\u0C35-\\u0C39\\u0C60\\u0C61\\u0C85-\\u0C8C\\u0C8E-\\u0C90\\u0C92-\\u0CA8\\u0CAA-\\u0CB3\\u0CB5-\\u0CB9\\u0CDE\\u0CE0\\u0CE1\\u0D05-\\u0D0C\\u0D0E-\\u0D10\\u0D12-\\u0D28\\u0D2A-\\u0D39\\u0D60\\u0D61\\u0E01-\\u0E2E\\u0E30\\u0E32\\u0E33\\u0E40-\\u0E45\\u0E81\\u0E82\\u0E84\\u0E87\\u0E88\\u0E8A\\u0E8D\\u0E94-\\u0E97\\u0E99-\\u0E9F\\u0EA1-\\u0EA3\\u0EA5\\u0EA7\\u0EAA\\u0EAB\\u0EAD\\u0EAE\\u0EB0\\u0EB2\\u0EB3\\u0EBD\\u0EC0-\\u0EC4\\u0F40-\\u0F47\\u0F49-\\u0F69\\u10A0-\\u10C5\\u10D0-\\u10F6\\u1100\\u1102\\u1103\\u1105-\\u1107\\u1109\\u110B\\u110C\\u110E-\\u1112\\u113C\\u113E\\u1140\\u114C\\u114E\\u1150\\u1154\\u1155\\u1159\\u115F-\\u1161\\u1163\\u1165\\u1167\\u1169\\u116D\\u116E\\u1172\\u1173\\u1175\\u119E\\u11A8\\u11AB\\u11AE\\u11AF\\u11B7\\u11B8\\u11BA\\u11BC-\\u11C2\\u11EB\\u11F0\\u11F9\\u1E00-\\u1E9B\\u1EA0-\\u1EF9\\u1F00-\\u1F15\\u1F18-\\u1F1D\\u1F20-\\u1F45\\u1F48-\\u1F4D\\u1F50-\\u1F57\\u1F59\\u1F5B\\u1F5D\\u1F5F-\\u1F7D\\u1F80-\\u1FB4\\u1FB6-\\u1FBC\\u1FBE\\u1FC2-\\u1FC4\\u1FC6-\\u1FCC\\u1FD0-\\u1FD3\\u1FD6-\\u1FDB\\u1FE0-\\u1FEC\\u1FF2-\\u1FF4\\u1FF6-\\u1FFC\\u2126\\u212A\\u212B\\u212E\\u2180-\\u2182\\u3007\\u3021-\\u3029\\u3041-\\u3094\\u30A1-\\u30FA\\u3105-\\u312C\\u4E00-\\u9FA5\\uAC00-\\uD7A3';
    const ncname = '[' + letter + '_][' + letter + digit + '\\.\\-_' + combiningChar + extender + ']*';
    return '((?:' + ncname + '\\:)?' + ncname + ')';
  })();
  const startTagOpen = new RegExp('^<' + qnameCapture);
  const startTagClose = /^\s*(\/?)>/;
  export const endTag = new RegExp('^<\\/' + qnameCapture + '[^>]*>');
  const doctype = /^<!DOCTYPE\s?[^>]+>/i;
  
  let IS_REGEX_CAPTURING_BROKEN = false;
  'x'.replace(/x(.)?/g, function (m, g) {
    IS_REGEX_CAPTURING_BROKEN = g === '';
  });
  
  // Empty Elements
  const empty = makeMap('area,base,basefont,br,col,embed,frame,hr,img,input,isindex,keygen,link,meta,param,source,track,wbr');
  
  // Inline Elements
  const inline = makeMap('a,abbr,acronym,applet,b,basefont,bdo,big,br,button,cite,code,del,dfn,em,font,i,iframe,img,input,ins,kbd,label,map,noscript,object,q,s,samp,script,select,small,span,strike,strong,sub,sup,svg,textarea,tt,u,var');
  
  // Elements that you can, intentionally, leave open
  // (and which close themselves)
  const closeSelf = makeMap('colgroup,dd,dt,li,option,p,td,tfoot,th,thead,tr,source');
  
  // Attributes that have their values filled in disabled='disabled'
  const fillAttrs = makeMap('checked,compact,declare,defer,disabled,ismap,multiple,nohref,noresize,noshade,nowrap,readonly,selected');
  
  // Special Elements (can contain anything)
  const special = makeMap('script,style');
  
  // HTML5 tags https://html.spec.whatwg.org/multipage/indices.html#elements-3
  // Phrasing Content https://html.spec.whatwg.org/multipage/dom.html#phrasing-content
  const nonPhrasing = makeMap('address,article,aside,base,blockquote,body,caption,col,colgroup,dd,details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,ol,optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,title,tr,track,ul');
  
  const reCache = {};
  
  function attrForHandler(handler) {
    let pattern = singleAttrIdentifier.source +
      '(?:\\s*(' + joinSingleAttrAssigns(handler) + ')' +
      '[ \\t\\n\\f\\r]*(?:' + singleAttrValues.join('|') + '))?';
    if (handler.customAttrSurround) {
      const attrClauses = [];
      for (let i = handler.customAttrSurround.length - 1; i >= 0; i--) {
        attrClauses[i] = '(?:' +
          '(' + handler.customAttrSurround[i][0].source + ')\\s*' +
          pattern +
          '\\s*(' + handler.customAttrSurround[i][1].source + ')' +
          ')';
      }
      attrClauses.push('(?:' + pattern + ')');
      pattern = '(?:' + attrClauses.join('|') + ')';
    }
    return new RegExp('^\\s*' + pattern);
  }
  
  function joinSingleAttrAssigns(handler) {
    return singleAttrAssigns.concat(
      handler.customAttrAssign || []
    ).map(function (assign) {
      return '(?:' + assign.source + ')';
    }).join('|');
  }
  
  export class HTMLParser {
    constructor(html, handler) {
      this.html = html;
      this.handler = handler;
    }
  
    async parse() {
      let html = this.html;
      const handler = this.handler;
  
      const stack = []; let lastTag;
      const attribute = attrForHandler(handler);
      let last, prevTag, nextTag;
      while (html) {
        last = html;
        // Make sure we're not in a script or style element
        if (!lastTag || !special(lastTag)) {
          let textEnd = html.indexOf('<');
          if (textEnd === 0) {
            // Comment:
            if (/^<!--/.test(html)) {
              const commentEnd = html.indexOf('-->');
  
              if (commentEnd >= 0) {
                if (handler.comment) {
                  await handler.comment(html.substring(4, commentEnd));
                }
                html = html.substring(commentEnd + 3);
                prevTag = '';
                continue;
              }
            }
  
            // https://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment
            if (/^<!\[/.test(html)) {
              const conditionalEnd = html.indexOf(']>');
  
              if (conditionalEnd >= 0) {
                if (handler.comment) {
                  await handler.comment(html.substring(2, conditionalEnd + 1), true /* non-standard */);
                }
                html = html.substring(conditionalEnd + 2);
                prevTag = '';
                continue;
              }
            }
  
            // Doctype:
            const doctypeMatch = html.match(doctype);
            if (doctypeMatch) {
              if (handler.doctype) {
                handler.doctype(doctypeMatch[0]);
              }
              html = html.substring(doctypeMatch[0].length);
              prevTag = '';
              continue;
            }
  
            // End tag:
            const endTagMatch = html.match(endTag);
            if (endTagMatch) {
              html = html.substring(endTagMatch[0].length);
              await replaceAsync(endTagMatch[0], endTag, parseEndTag);
              prevTag = '/' + endTagMatch[1].toLowerCase();
              continue;
            }
  
            // Start tag:
            const startTagMatch = parseStartTag(html);
            if (startTagMatch) {
              html = startTagMatch.rest;
              await handleStartTag(startTagMatch);
              prevTag = startTagMatch.tagName.toLowerCase();
              continue;
            }
  
            // Treat `<` as text
            if (handler.continueOnParseError) {
              textEnd = html.indexOf('<', 1);
            }
          }
  
          let text;
          if (textEnd >= 0) {
            text = html.substring(0, textEnd);
            html = html.substring(textEnd);
          } else {
            text = html;
            html = '';
          }
  
          // next tag
          let nextTagMatch = parseStartTag(html);
          if (nextTagMatch) {
            nextTag = nextTagMatch.tagName;
          } else {
            nextTagMatch = html.match(endTag);
            if (nextTagMatch) {
              nextTag = '/' + nextTagMatch[1];
            } else {
              nextTag = '';
            }
          }
  
          if (handler.chars) {
            await handler.chars(text, prevTag, nextTag);
          }
          prevTag = '';
        } else {
          const stackedTag = lastTag.toLowerCase();
          const reStackedTag = reCache[stackedTag] || (reCache[stackedTag] = new RegExp('([\\s\\S]*?)</' + stackedTag + '[^>]*>', 'i'));
  
          html = await replaceAsync(html, reStackedTag, async (_, text) => {
            if (stackedTag !== 'script' && stackedTag !== 'style' && stackedTag !== 'noscript') {
              text = text
                .replace(/<!--([\s\S]*?)-->/g, '$1')
                .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
            }
  
            if (handler.chars) {
              await handler.chars(text);
            }
  
            return '';
          });
  
          await parseEndTag('</' + stackedTag + '>', stackedTag);
        }
  
        if (html === last) {
          throw new Error('Parse Error: ' + html);
        }
      }
  
      if (!handler.partialMarkup) {
        // Clean up any remaining tags
        await parseEndTag();
      }
  
      function parseStartTag(input) {
        const start = input.match(startTagOpen);
        if (start) {
          const match = {
            tagName: start[1],
            attrs: []
          };
          input = input.slice(start[0].length);
          let end, attr;
          while (!(end = input.match(startTagClose)) && (attr = input.match(attribute))) {
            input = input.slice(attr[0].length);
            match.attrs.push(attr);
          }
          if (end) {
            match.unarySlash = end[1];
            match.rest = input.slice(end[0].length);
            return match;
          }
        }
      }
  
      async function closeIfFound(tagName) {
        if (findTag(tagName) >= 0) {
          await parseEndTag('', tagName);
          return true;
        }
      }
  
      async function handleStartTag(match) {
        const tagName = match.tagName;
        let unarySlash = match.unarySlash;
  
        if (handler.html5) {
          if (lastTag === 'p' && nonPhrasing(tagName)) {
            await parseEndTag('', lastTag);
          } else if (tagName === 'tbody') {
            await closeIfFound('thead');
          } else if (tagName === 'tfoot') {
            if (!await closeIfFound('tbody')) {
              await closeIfFound('thead');
            }
          }
          if (tagName === 'col' && findTag('colgroup') < 0) {
            lastTag = 'colgroup';
            stack.push({ tag: lastTag, attrs: [] });
            if (handler.start) {
              await handler.start(lastTag, [], false, '');
            }
          }
        }
  
        if (!handler.html5 && !inline(tagName)) {
          while (lastTag && inline(lastTag)) {
            await parseEndTag('', lastTag);
          }
        }
  
        if (closeSelf(tagName) && lastTag === tagName) {
          await parseEndTag('', tagName);
        }
  
        const unary = empty(tagName) || (tagName === 'html' && lastTag === 'head') || !!unarySlash;
  
        const attrs = match.attrs.map(function (args) {
          let name, value, customOpen, customClose, customAssign, quote;
          const ncp = 7; // number of captured parts, scalar
  
          // hackish work around FF bug https://bugzilla.mozilla.org/show_bug.cgi?id=369778
          if (IS_REGEX_CAPTURING_BROKEN && args[0].indexOf('""') === -1) {
            if (args[3] === '') { delete args[3]; }
            if (args[4] === '') { delete args[4]; }
            if (args[5] === '') { delete args[5]; }
          }
  
          function populate(index) {
            customAssign = args[index];
            value = args[index + 1];
            if (typeof value !== 'undefined') {
              return '"';
            }
            value = args[index + 2];
            if (typeof value !== 'undefined') {
              return '\'';
            }
            value = args[index + 3];
            if (typeof value === 'undefined' && fillAttrs(name)) {
              value = name;
            }
            return '';
          }
  
          let j = 1;
          if (handler.customAttrSurround) {
            for (let i = 0, l = handler.customAttrSurround.length; i < l; i++, j += ncp) {
              name = args[j + 1];
              if (name) {
                quote = populate(j + 2);
                customOpen = args[j];
                customClose = args[j + 6];
                break;
              }
            }
          }
  
          if (!name && (name = args[j])) {
            quote = populate(j + 1);
          }
  
          return {
            name: name,
            value: value,
            customAssign: customAssign || '=',
            customOpen: customOpen || '',
            customClose: customClose || '',
            quote: quote || ''
          };
        });
  
        if (!unary) {
          stack.push({ tag: tagName, attrs: attrs });
          lastTag = tagName;
          unarySlash = '';
        }
  
        if (handler.start) {
          await handler.start(tagName, attrs, unary, unarySlash);
        }
      }
  
      function findTag(tagName) {
        let pos;
        const needle = tagName.toLowerCase();
        for (pos = stack.length - 1; pos >= 0; pos--) {
          if (stack[pos].tag.toLowerCase() === needle) {
            break;
          }
        }
        return pos;
      }
  
      async function parseEndTag(tag, tagName) {
        let pos;
  
        // Find the closest opened tag of the same type
        if (tagName) {
          pos = findTag(tagName);
        } else { // If no tag name is provided, clean shop
          pos = 0;
        }
  
        if (pos >= 0) {
          // Close all the open elements, up the stack
          for (let i = stack.length - 1; i >= pos; i--) {
            if (handler.end) {
              handler.end(stack[i].tag, stack[i].attrs, i > pos || !tag);
            }
          }
  
          // Remove the open elements from the stack
          stack.length = pos;
          lastTag = pos && stack[pos - 1].tag;
        } else if (tagName.toLowerCase() === 'br') {
          if (handler.start) {
            await handler.start(tagName, [], true, '');
          }
        } else if (tagName.toLowerCase() === 'p') {
          if (handler.start) {
            await handler.start(tagName, [], false, '', true);
          }
          if (handler.end) {
            handler.end(tagName, []);
          }
        }
      }
    }
  }
  
  export const HTMLtoXML = (html) => {
    let results = '';
  
    const parser = new HTMLParser(html, {
      start: function (tag, attrs, unary) {
        results += '<' + tag;
  
        for (let i = 0, len = attrs.length; i < len; i++) {
          results += ' ' + attrs[i].name + '="' + (attrs[i].value || '').replace(/"/g, '&#34;') + '"';
        }
  
        results += (unary ? '/' : '') + '>';
      },
      end: function (tag) {
        results += '</' + tag + '>';
      },
      chars: function (text) {
        results += text;
      },
      comment: function (text) {
        results += '<!--' + text + '-->';
      },
      ignore: function (text) {
        results += text;
      }
    });
  
    parser.parse();
  
    return results;
  };
  
  export const HTMLtoDOM = (html, doc) => {
    // There can be only one of these elements
    const one = {
      html: true,
      head: true,
      body: true,
      title: true
    };
  
    // Enforce a structure for the document
    const structure = {
      link: 'head',
      base: 'head'
    };
  
    if (doc) {
      doc = doc.ownerDocument || (doc.getOwnerDocument && doc.getOwnerDocument()) || doc;
    } else if (typeof DOMDocument !== 'undefined') {
      doc = new DOMDocument();
    } else if (typeof document !== 'undefined' && document.implementation && document.implementation.createDocument) {
      doc = document.implementation.createDocument('', '', null);
    } else if (typeof ActiveX !== 'undefined') {
      doc = new ActiveXObject('Msxml.DOMDocument');
    }
  
    const elems = [];
    const documentElement = doc.documentElement || (doc.getDocumentElement && doc.getDocumentElement());
  
    // If we're dealing with an empty document then we
    // need to pre-populate it with the HTML document structure
    if (!documentElement && doc.createElement) {
      (function () {
        const html = doc.createElement('html');
        const head = doc.createElement('head');
        head.appendChild(doc.createElement('title'));
        html.appendChild(head);
        html.appendChild(doc.createElement('body'));
        doc.appendChild(html);
      })();
    }
  
    // Find all the unique elements
    if (doc.getElementsByTagName) {
      for (const i in one) {
        one[i] = doc.getElementsByTagName(i)[0];
      }
    }
  
    // If we're working with a document, inject contents into
    // the body element
    let curParentNode = one.body;
  
    const parser = new HTMLParser(html, {
      start: function (tagName, attrs, unary) {
        // If it's a pre-built element, then we can ignore
        // its construction
        if (one[tagName]) {
          curParentNode = one[tagName];
          return;
        }
  
        const elem = doc.createElement(tagName);
  
        for (const attr in attrs) {
          elem.setAttribute(attrs[attr].name, attrs[attr].value);
        }
  
        if (structure[tagName] && typeof one[structure[tagName]] !== 'boolean') {
          one[structure[tagName]].appendChild(elem);
        } else if (curParentNode && curParentNode.appendChild) {
          curParentNode.appendChild(elem);
        }
  
        if (!unary) {
          elems.push(elem);
          curParentNode = elem;
        }
      },
      end: function (/* tag */) {
        elems.length -= 1;
  
        // Init the new parentNode
        curParentNode = elems[elems.length - 1];
      },
      chars: function (text) {
        curParentNode.appendChild(doc.createTextNode(text));
      },
      comment: function (/* text */) {
        // create comment node
      },
      ignore: function (/* text */) {
        // What to do here?
      }
    });
  
    parser.parse();
  
    return doc;
  };
  