/i.test(cap[0])) {\n this.lexer.state.inLink = false;\n }\n if (!this.lexer.state.inRawBlock && /^<(pre|code|kbd|script)(\\s|>)/i.test(cap[0])) {\n this.lexer.state.inRawBlock = true;\n } else if (this.lexer.state.inRawBlock && /^<\\/(pre|code|kbd|script)(\\s|>)/i.test(cap[0])) {\n this.lexer.state.inRawBlock = false;\n }\n\n return {\n type: this.options.sanitize\n ? 'text'\n : 'html',\n raw: cap[0],\n inLink: this.lexer.state.inLink,\n inRawBlock: this.lexer.state.inRawBlock,\n block: false,\n text: this.options.sanitize\n ? (this.options.sanitizer\n ? this.options.sanitizer(cap[0])\n : escape(cap[0]))\n : cap[0]\n };\n }\n }\n\n link(src) {\n const cap = this.rules.inline.link.exec(src);\n if (cap) {\n const trimmedUrl = cap[2].trim();\n if (!this.options.pedantic && /^$/.test(trimmedUrl))) {\n return;\n }\n\n // ending angle bracket cannot be escaped\n const rtrimSlash = rtrim(trimmedUrl.slice(0, -1), '\\\\');\n if ((trimmedUrl.length - rtrimSlash.length) % 2 === 0) {\n return;\n }\n } else {\n // find closing parenthesis\n const lastParenIndex = findClosingBracket(cap[2], '()');\n if (lastParenIndex > -1) {\n const start = cap[0].indexOf('!') === 0 ? 5 : 4;\n const linkLen = start + cap[1].length + lastParenIndex;\n cap[2] = cap[2].substring(0, lastParenIndex);\n cap[0] = cap[0].substring(0, linkLen).trim();\n cap[3] = '';\n }\n }\n let href = cap[2];\n let title = '';\n if (this.options.pedantic) {\n // split pedantic href and title\n const link = /^([^'\"]*[^\\s])\\s+(['\"])(.*)\\2/.exec(href);\n\n if (link) {\n href = link[1];\n title = link[3];\n }\n } else {\n title = cap[3] ? cap[3].slice(1, -1) : '';\n }\n\n href = href.trim();\n if (/^$/.test(trimmedUrl))) {\n // pedantic allows starting angle bracket without ending angle bracket\n href = href.slice(1);\n } else {\n href = href.slice(1, -1);\n }\n }\n return outputLink(cap, {\n href: href ? href.replace(this.rules.inline._escapes, '$1') : href,\n title: title ? title.replace(this.rules.inline._escapes, '$1') : title\n }, cap[0], this.lexer);\n }\n }\n\n reflink(src, links) {\n let cap;\n if ((cap = this.rules.inline.reflink.exec(src))\n || (cap = this.rules.inline.nolink.exec(src))) {\n let link = (cap[2] || cap[1]).replace(/\\s+/g, ' ');\n link = links[link.toLowerCase()];\n if (!link) {\n const text = cap[0].charAt(0);\n return {\n type: 'text',\n raw: text,\n text\n };\n }\n return outputLink(cap, link, cap[0], this.lexer);\n }\n }\n\n emStrong(src, maskedSrc, prevChar = '') {\n let match = this.rules.inline.emStrong.lDelim.exec(src);\n if (!match) return;\n\n // _ can't be between two alphanumerics. \\p{L}\\p{N} includes non-english alphabet/numbers as well\n if (match[3] && prevChar.match(/[\\p{L}\\p{N}]/u)) return;\n\n const nextChar = match[1] || match[2] || '';\n\n if (!nextChar || !prevChar || this.rules.inline.punctuation.exec(prevChar)) {\n const lLength = match[0].length - 1;\n let rDelim, rLength, delimTotal = lLength, midDelimTotal = 0;\n\n const endReg = match[0][0] === '*' ? this.rules.inline.emStrong.rDelimAst : this.rules.inline.emStrong.rDelimUnd;\n endReg.lastIndex = 0;\n\n // Clip maskedSrc to same section of string as src (move to lexer?)\n maskedSrc = maskedSrc.slice(-1 * src.length + lLength);\n\n while ((match = endReg.exec(maskedSrc)) != null) {\n rDelim = match[1] || match[2] || match[3] || match[4] || match[5] || match[6];\n\n if (!rDelim) continue; // skip single * in __abc*abc__\n\n rLength = rDelim.length;\n\n if (match[3] || match[4]) { // found another Left Delim\n delimTotal += rLength;\n continue;\n } else if (match[5] || match[6]) { // either Left or Right Delim\n if (lLength % 3 && !((lLength + rLength) % 3)) {\n midDelimTotal += rLength;\n continue; // CommonMark Emphasis Rules 9-10\n }\n }\n\n delimTotal -= rLength;\n\n if (delimTotal > 0) continue; // Haven't found enough closing delimiters\n\n // Remove extra characters. *a*** -> *a*\n rLength = Math.min(rLength, rLength + delimTotal + midDelimTotal);\n\n const raw = src.slice(0, lLength + match.index + rLength + 1);\n\n // Create `em` if smallest delimiter has odd char count. *a***\n if (Math.min(lLength, rLength) % 2) {\n const text = raw.slice(1, -1);\n return {\n type: 'em',\n raw,\n text,\n tokens: this.lexer.inlineTokens(text)\n };\n }\n\n // Create 'strong' if smallest delimiter has even char count. **a***\n const text = raw.slice(2, -2);\n return {\n type: 'strong',\n raw,\n text,\n tokens: this.lexer.inlineTokens(text)\n };\n }\n }\n }\n\n codespan(src) {\n const cap = this.rules.inline.code.exec(src);\n if (cap) {\n let text = cap[2].replace(/\\n/g, ' ');\n const hasNonSpaceChars = /[^ ]/.test(text);\n const hasSpaceCharsOnBothEnds = /^ /.test(text) && / $/.test(text);\n if (hasNonSpaceChars && hasSpaceCharsOnBothEnds) {\n text = text.substring(1, text.length - 1);\n }\n text = escape(text, true);\n return {\n type: 'codespan',\n raw: cap[0],\n text\n };\n }\n }\n\n br(src) {\n const cap = this.rules.inline.br.exec(src);\n if (cap) {\n return {\n type: 'br',\n raw: cap[0]\n };\n }\n }\n\n del(src) {\n const cap = this.rules.inline.del.exec(src);\n if (cap) {\n return {\n type: 'del',\n raw: cap[0],\n text: cap[2],\n tokens: this.lexer.inlineTokens(cap[2])\n };\n }\n }\n\n autolink(src, mangle) {\n const cap = this.rules.inline.autolink.exec(src);\n if (cap) {\n let text, href;\n if (cap[2] === '@') {\n text = escape(this.options.mangle ? mangle(cap[1]) : cap[1]);\n href = 'mailto:' + text;\n } else {\n text = escape(cap[1]);\n href = text;\n }\n\n return {\n type: 'link',\n raw: cap[0],\n text,\n href,\n tokens: [\n {\n type: 'text',\n raw: text,\n text\n }\n ]\n };\n }\n }\n\n url(src, mangle) {\n let cap;\n if (cap = this.rules.inline.url.exec(src)) {\n let text, href;\n if (cap[2] === '@') {\n text = escape(this.options.mangle ? mangle(cap[0]) : cap[0]);\n href = 'mailto:' + text;\n } else {\n // do extended autolink path validation\n let prevCapZero;\n do {\n prevCapZero = cap[0];\n cap[0] = this.rules.inline._backpedal.exec(cap[0])[0];\n } while (prevCapZero !== cap[0]);\n text = escape(cap[0]);\n if (cap[1] === 'www.') {\n href = 'http://' + cap[0];\n } else {\n href = cap[0];\n }\n }\n return {\n type: 'link',\n raw: cap[0],\n text,\n href,\n tokens: [\n {\n type: 'text',\n raw: text,\n text\n }\n ]\n };\n }\n }\n\n inlineText(src, smartypants) {\n const cap = this.rules.inline.text.exec(src);\n if (cap) {\n let text;\n if (this.lexer.state.inRawBlock) {\n text = this.options.sanitize ? (this.options.sanitizer ? this.options.sanitizer(cap[0]) : escape(cap[0])) : cap[0];\n } else {\n text = escape(this.options.smartypants ? smartypants(cap[0]) : cap[0]);\n }\n return {\n type: 'text',\n raw: cap[0],\n text\n };\n }\n }\n}\n\n/**\n * Block-Level Grammar\n */\nconst block = {\n newline: /^(?: *(?:\\n|$))+/,\n code: /^( {4}[^\\n]+(?:\\n(?: *(?:\\n|$))*)?)+/,\n fences: /^ {0,3}(`{3,}(?=[^`\\n]*(?:\\n|$))|~{3,})([^\\n]*)(?:\\n|$)(?:|([\\s\\S]*?)(?:\\n|$))(?: {0,3}\\1[~`]* *(?=\\n|$)|$)/,\n hr: /^ {0,3}((?:-[\\t ]*){3,}|(?:_[ \\t]*){3,}|(?:\\*[ \\t]*){3,})(?:\\n+|$)/,\n heading: /^ {0,3}(#{1,6})(?=\\s|$)(.*)(?:\\n+|$)/,\n blockquote: /^( {0,3}> ?(paragraph|[^\\n]*)(?:\\n|$))+/,\n list: /^( {0,3}bull)([ \\t][^\\n]+?)?(?:\\n|$)/,\n html: '^ {0,3}(?:' // optional indentation\n + '<(script|pre|style|textarea)[\\\\s>][\\\\s\\\\S]*?(?:[^\\\\n]*\\\\n+|$)' // (1)\n + '|comment[^\\\\n]*(\\\\n+|$)' // (2)\n + '|<\\\\?[\\\\s\\\\S]*?(?:\\\\?>\\\\n*|$)' // (3)\n + '|\\\\n*|$)' // (4)\n + '|\\\\n*|$)' // (5)\n + '|)[\\\\s\\\\S]*?(?:(?:\\\\n *)+\\\\n|$)' // (6)\n + '|<(?!script|pre|style|textarea)([a-z][\\\\w-]*)(?:attribute)*? */?>(?=[ \\\\t]*(?:\\\\n|$))[\\\\s\\\\S]*?(?:(?:\\\\n *)+\\\\n|$)' // (7) open tag\n + '|(?=[ \\\\t]*(?:\\\\n|$))[\\\\s\\\\S]*?(?:(?:\\\\n *)+\\\\n|$)' // (7) closing tag\n + ')',\n def: /^ {0,3}\\[(label)\\]: *(?:\\n *)?([^<\\s][^\\s]*|<.*?>)(?:(?: +(?:\\n *)?| *\\n *)(title))? *(?:\\n+|$)/,\n table: noopTest,\n lheading: /^((?:(?!^bull ).|\\n(?!\\n|bull ))+?)\\n {0,3}(=+|-+) *(?:\\n+|$)/,\n // regex template, placeholders will be replaced according to different paragraph\n // interruption rules of commonmark and the original markdown spec:\n _paragraph: /^([^\\n]+(?:\\n(?!hr|heading|lheading|blockquote|fences|list|html|table| +\\n)[^\\n]+)*)/,\n text: /^[^\\n]+/\n};\n\nblock._label = /(?!\\s*\\])(?:\\\\.|[^\\[\\]\\\\])+/;\nblock._title = /(?:\"(?:\\\\\"?|[^\"\\\\])*\"|'[^'\\n]*(?:\\n[^'\\n]+)*\\n?'|\\([^()]*\\))/;\nblock.def = edit(block.def)\n .replace('label', block._label)\n .replace('title', block._title)\n .getRegex();\n\nblock.bullet = /(?:[*+-]|\\d{1,9}[.)])/;\nblock.listItemStart = edit(/^( *)(bull) */)\n .replace('bull', block.bullet)\n .getRegex();\n\nblock.list = edit(block.list)\n .replace(/bull/g, block.bullet)\n .replace('hr', '\\\\n+(?=\\\\1?(?:(?:- *){3,}|(?:_ *){3,}|(?:\\\\* *){3,})(?:\\\\n+|$))')\n .replace('def', '\\\\n+(?=' + block.def.source + ')')\n .getRegex();\n\nblock._tag = 'address|article|aside|base|basefont|blockquote|body|caption'\n + '|center|col|colgroup|dd|details|dialog|dir|div|dl|dt|fieldset|figcaption'\n + '|figure|footer|form|frame|frameset|h[1-6]|head|header|hr|html|iframe'\n + '|legend|li|link|main|menu|menuitem|meta|nav|noframes|ol|optgroup|option'\n + '|p|param|section|source|summary|table|tbody|td|tfoot|th|thead|title|tr'\n + '|track|ul';\nblock._comment = /|$)/;\nblock.html = edit(block.html, 'i')\n .replace('comment', block._comment)\n .replace('tag', block._tag)\n .replace('attribute', / +[a-zA-Z:_][\\w.:-]*(?: *= *\"[^\"\\n]*\"| *= *'[^'\\n]*'| *= *[^\\s\"'=<>`]+)?/)\n .getRegex();\n\nblock.lheading = edit(block.lheading)\n .replace(/bull/g, block.bullet) // lists can interrupt\n .getRegex();\n\nblock.paragraph = edit(block._paragraph)\n .replace('hr', block.hr)\n .replace('heading', ' {0,3}#{1,6} ')\n .replace('|lheading', '') // setex headings don't interrupt commonmark paragraphs\n .replace('|table', '')\n .replace('blockquote', ' {0,3}>')\n .replace('fences', ' {0,3}(?:`{3,}(?=[^`\\\\n]*\\\\n)|~{3,})[^\\\\n]*\\\\n')\n .replace('list', ' {0,3}(?:[*+-]|1[.)]) ') // only lists starting from 1 can interrupt\n .replace('html', ')|<(?:script|pre|style|textarea|!--)')\n .replace('tag', block._tag) // pars can be interrupted by type (6) html blocks\n .getRegex();\n\nblock.blockquote = edit(block.blockquote)\n .replace('paragraph', block.paragraph)\n .getRegex();\n\n/**\n * Normal Block Grammar\n */\n\nblock.normal = { ...block };\n\n/**\n * GFM Block Grammar\n */\n\nblock.gfm = {\n ...block.normal,\n table: '^ *([^\\\\n ].*\\\\|.*)\\\\n' // Header\n + ' {0,3}(?:\\\\| *)?(:?-+:? *(?:\\\\| *:?-+:? *)*)(?:\\\\| *)?' // Align\n + '(?:\\\\n((?:(?! *\\\\n|hr|heading|blockquote|code|fences|list|html).*(?:\\\\n|$))*)\\\\n*|$)' // Cells\n};\n\nblock.gfm.table = edit(block.gfm.table)\n .replace('hr', block.hr)\n .replace('heading', ' {0,3}#{1,6} ')\n .replace('blockquote', ' {0,3}>')\n .replace('code', ' {4}[^\\\\n]')\n .replace('fences', ' {0,3}(?:`{3,}(?=[^`\\\\n]*\\\\n)|~{3,})[^\\\\n]*\\\\n')\n .replace('list', ' {0,3}(?:[*+-]|1[.)]) ') // only lists starting from 1 can interrupt\n .replace('html', ')|<(?:script|pre|style|textarea|!--)')\n .replace('tag', block._tag) // tables can be interrupted by type (6) html blocks\n .getRegex();\n\nblock.gfm.paragraph = edit(block._paragraph)\n .replace('hr', block.hr)\n .replace('heading', ' {0,3}#{1,6} ')\n .replace('|lheading', '') // setex headings don't interrupt commonmark paragraphs\n .replace('table', block.gfm.table) // interrupt paragraphs with table\n .replace('blockquote', ' {0,3}>')\n .replace('fences', ' {0,3}(?:`{3,}(?=[^`\\\\n]*\\\\n)|~{3,})[^\\\\n]*\\\\n')\n .replace('list', ' {0,3}(?:[*+-]|1[.)]) ') // only lists starting from 1 can interrupt\n .replace('html', ')|<(?:script|pre|style|textarea|!--)')\n .replace('tag', block._tag) // pars can be interrupted by type (6) html blocks\n .getRegex();\n/**\n * Pedantic grammar (original John Gruber's loose markdown specification)\n */\n\nblock.pedantic = {\n ...block.normal,\n html: edit(\n '^ *(?:comment *(?:\\\\n|\\\\s*$)'\n + '|<(tag)[\\\\s\\\\S]+? *(?:\\\\n{2,}|\\\\s*$)' // closed tag\n + '|\\\\s]*)*?/?> *(?:\\\\n{2,}|\\\\s*$))')\n .replace('comment', block._comment)\n .replace(/tag/g, '(?!(?:'\n + 'a|em|strong|small|s|cite|q|dfn|abbr|data|time|code|var|samp|kbd|sub'\n + '|sup|i|b|u|mark|ruby|rt|rp|bdi|bdo|span|br|wbr|ins|del|img)'\n + '\\\\b)\\\\w+(?!:|[^\\\\w\\\\s@]*@)\\\\b')\n .getRegex(),\n def: /^ *\\[([^\\]]+)\\]: *]+)>?(?: +([\"(][^\\n]+[\")]))? *(?:\\n+|$)/,\n heading: /^(#{1,6})(.*)(?:\\n+|$)/,\n fences: noopTest, // fences not supported\n lheading: /^(.+?)\\n {0,3}(=+|-+) *(?:\\n+|$)/,\n paragraph: edit(block.normal._paragraph)\n .replace('hr', block.hr)\n .replace('heading', ' *#{1,6} *[^\\n]')\n .replace('lheading', block.lheading)\n .replace('blockquote', ' {0,3}>')\n .replace('|fences', '')\n .replace('|list', '')\n .replace('|html', '')\n .getRegex()\n};\n\n/**\n * Inline-Level Grammar\n */\nconst inline = {\n escape: /^\\\\([!\"#$%&'()*+,\\-./:;<=>?@\\[\\]\\\\^_`{|}~])/,\n autolink: /^<(scheme:[^\\s\\x00-\\x1f<>]*|email)>/,\n url: noopTest,\n tag: '^comment'\n + '|^' // self-closing tag\n + '|^<[a-zA-Z][\\\\w-]*(?:attribute)*?\\\\s*/?>' // open tag\n + '|^<\\\\?[\\\\s\\\\S]*?\\\\?>' // processing instruction, e.g. \n + '|^' // declaration, e.g. \n + '|^', // CDATA section\n link: /^!?\\[(label)\\]\\(\\s*(href)(?:\\s+(title))?\\s*\\)/,\n reflink: /^!?\\[(label)\\]\\[(ref)\\]/,\n nolink: /^!?\\[(ref)\\](?:\\[\\])?/,\n reflinkSearch: 'reflink|nolink(?!\\\\()',\n emStrong: {\n lDelim: /^(?:\\*+(?:((?!\\*)[punct])|[^\\s*]))|^_+(?:((?!_)[punct])|([^\\s_]))/,\n // (1) and (2) can only be a Right Delimiter. (3) and (4) can only be Left. (5) and (6) can be either Left or Right.\n // | Skip orphan inside strong | Consume to delim | (1) #*** | (2) a***#, a*** | (3) #***a, ***a | (4) ***# | (5) #***# | (6) a***a\n rDelimAst: /^[^_*]*?__[^_*]*?\\*[^_*]*?(?=__)|[^*]+(?=[^*])|(?!\\*)[punct](\\*+)(?=[\\s]|$)|[^punct\\s](\\*+)(?!\\*)(?=[punct\\s]|$)|(?!\\*)[punct\\s](\\*+)(?=[^punct\\s])|[\\s](\\*+)(?!\\*)(?=[punct])|(?!\\*)[punct](\\*+)(?!\\*)(?=[punct])|[^punct\\s](\\*+)(?=[^punct\\s])/,\n rDelimUnd: /^[^_*]*?\\*\\*[^_*]*?_[^_*]*?(?=\\*\\*)|[^_]+(?=[^_])|(?!_)[punct](_+)(?=[\\s]|$)|[^punct\\s](_+)(?!_)(?=[punct\\s]|$)|(?!_)[punct\\s](_+)(?=[^punct\\s])|[\\s](_+)(?!_)(?=[punct])|(?!_)[punct](_+)(?!_)(?=[punct])/ // ^- Not allowed for _\n },\n code: /^(`+)([^`]|[^`][\\s\\S]*?[^`])\\1(?!`)/,\n br: /^( {2,}|\\\\)\\n(?!\\s*$)/,\n del: noopTest,\n text: /^(`+|[^`])(?:(?= {2,}\\n)|[\\s\\S]*?(?:(?=[\\\\`^|~';\ninline.punctuation = edit(inline.punctuation, 'u').replace(/punctuation/g, inline._punctuation).getRegex();\n\n// sequences em should skip over [title](link), `code`, \ninline.blockSkip = /\\[[^[\\]]*?\\]\\([^\\(\\)]*?\\)|`[^`]*?`|<[^<>]*?>/g;\ninline.anyPunctuation = /\\\\[punct]/g;\ninline._escapes = /\\\\([punct])/g;\n\ninline._comment = edit(block._comment).replace('(?:-->|$)', '-->').getRegex();\n\ninline.emStrong.lDelim = edit(inline.emStrong.lDelim, 'u')\n .replace(/punct/g, inline._punctuation)\n .getRegex();\n\ninline.emStrong.rDelimAst = edit(inline.emStrong.rDelimAst, 'gu')\n .replace(/punct/g, inline._punctuation)\n .getRegex();\n\ninline.emStrong.rDelimUnd = edit(inline.emStrong.rDelimUnd, 'gu')\n .replace(/punct/g, inline._punctuation)\n .getRegex();\n\ninline.anyPunctuation = edit(inline.anyPunctuation, 'gu')\n .replace(/punct/g, inline._punctuation)\n .getRegex();\n\ninline._escapes = edit(inline._escapes, 'gu')\n .replace(/punct/g, inline._punctuation)\n .getRegex();\n\ninline._scheme = /[a-zA-Z][a-zA-Z0-9+.-]{1,31}/;\ninline._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])?)+(?![-_])/;\ninline.autolink = edit(inline.autolink)\n .replace('scheme', inline._scheme)\n .replace('email', inline._email)\n .getRegex();\n\ninline._attribute = /\\s+[a-zA-Z:_][\\w.:-]*(?:\\s*=\\s*\"[^\"]*\"|\\s*=\\s*'[^']*'|\\s*=\\s*[^\\s\"'=<>`]+)?/;\n\ninline.tag = edit(inline.tag)\n .replace('comment', inline._comment)\n .replace('attribute', inline._attribute)\n .getRegex();\n\ninline._label = /(?:\\[(?:\\\\.|[^\\[\\]\\\\])*\\]|\\\\.|`[^`]*`|[^\\[\\]\\\\`])*?/;\ninline._href = /<(?:\\\\.|[^\\n<>\\\\])+>|[^\\s\\x00-\\x1f]*/;\ninline._title = /\"(?:\\\\\"?|[^\"\\\\])*\"|'(?:\\\\'?|[^'\\\\])*'|\\((?:\\\\\\)?|[^)\\\\])*\\)/;\n\ninline.link = edit(inline.link)\n .replace('label', inline._label)\n .replace('href', inline._href)\n .replace('title', inline._title)\n .getRegex();\n\ninline.reflink = edit(inline.reflink)\n .replace('label', inline._label)\n .replace('ref', block._label)\n .getRegex();\n\ninline.nolink = edit(inline.nolink)\n .replace('ref', block._label)\n .getRegex();\n\ninline.reflinkSearch = edit(inline.reflinkSearch, 'g')\n .replace('reflink', inline.reflink)\n .replace('nolink', inline.nolink)\n .getRegex();\n\n/**\n * Normal Inline Grammar\n */\n\ninline.normal = { ...inline };\n\n/**\n * Pedantic Inline Grammar\n */\n\ninline.pedantic = {\n ...inline.normal,\n strong: {\n start: /^__|\\*\\*/,\n middle: /^__(?=\\S)([\\s\\S]*?\\S)__(?!_)|^\\*\\*(?=\\S)([\\s\\S]*?\\S)\\*\\*(?!\\*)/,\n endAst: /\\*\\*(?!\\*)/g,\n endUnd: /__(?!_)/g\n },\n em: {\n start: /^_|\\*/,\n middle: /^()\\*(?=\\S)([\\s\\S]*?\\S)\\*(?!\\*)|^_(?=\\S)([\\s\\S]*?\\S)_(?!_)/,\n endAst: /\\*(?!\\*)/g,\n endUnd: /_(?!_)/g\n },\n link: edit(/^!?\\[(label)\\]\\((.*?)\\)/)\n .replace('label', inline._label)\n .getRegex(),\n reflink: edit(/^!?\\[(label)\\]\\s*\\[([^\\]]*)\\]/)\n .replace('label', inline._label)\n .getRegex()\n};\n\n/**\n * GFM Inline Grammar\n */\n\ninline.gfm = {\n ...inline.normal,\n escape: edit(inline.escape).replace('])', '~|])').getRegex(),\n _extended_email: /[A-Za-z0-9._+-]+(@)[a-zA-Z0-9-_]+(?:\\.[a-zA-Z0-9-_]*[a-zA-Z0-9])+(?![-_])/,\n url: /^((?:ftp|https?):\\/\\/|www\\.)(?:[a-zA-Z0-9\\-]+\\.?)+[^\\s<]*|^email/,\n _backpedal: /(?:[^?!.,:;*_'\"~()&]+|\\([^)]*\\)|&(?![a-zA-Z0-9]+;$)|[?!.,:;*_'\"~)]+(?!$))+/,\n del: /^(~~?)(?=[^\\s~])([\\s\\S]*?[^\\s~])\\1(?=[^~]|$)/,\n text: /^([`~]+|[^`~])(?:(?= {2,}\\n)|(?=[a-zA-Z0-9.!#$%&'*+\\/=?_`{\\|}~-]+@)|[\\s\\S]*?(?:(?=[\\\\ 0.5) {\n ch = 'x' + ch.toString(16);\n }\n out += '&#' + ch + ';';\n }\n\n return out;\n}\n\n/**\n * Block Lexer\n */\nclass Lexer {\n constructor(options) {\n this.tokens = [];\n this.tokens.links = Object.create(null);\n this.options = options || defaults;\n this.options.tokenizer = this.options.tokenizer || new Tokenizer();\n this.tokenizer = this.options.tokenizer;\n this.tokenizer.options = this.options;\n this.tokenizer.lexer = this;\n this.inlineQueue = [];\n this.state = {\n inLink: false,\n inRawBlock: false,\n top: true\n };\n\n const rules = {\n block: block.normal,\n inline: inline.normal\n };\n\n if (this.options.pedantic) {\n rules.block = block.pedantic;\n rules.inline = inline.pedantic;\n } else if (this.options.gfm) {\n rules.block = block.gfm;\n if (this.options.breaks) {\n rules.inline = inline.breaks;\n } else {\n rules.inline = inline.gfm;\n }\n }\n this.tokenizer.rules = rules;\n }\n\n /**\n * Expose Rules\n */\n static get rules() {\n return {\n block,\n inline\n };\n }\n\n /**\n * Static Lex Method\n */\n static lex(src, options) {\n const lexer = new Lexer(options);\n return lexer.lex(src);\n }\n\n /**\n * Static Lex Inline Method\n */\n static lexInline(src, options) {\n const lexer = new Lexer(options);\n return lexer.inlineTokens(src);\n }\n\n /**\n * Preprocessing\n */\n lex(src) {\n src = src\n .replace(/\\r\\n|\\r/g, '\\n');\n\n this.blockTokens(src, this.tokens);\n\n let next;\n while (next = this.inlineQueue.shift()) {\n this.inlineTokens(next.src, next.tokens);\n }\n\n return this.tokens;\n }\n\n /**\n * Lexing\n */\n blockTokens(src, tokens = []) {\n if (this.options.pedantic) {\n src = src.replace(/\\t/g, ' ').replace(/^ +$/gm, '');\n } else {\n src = src.replace(/^( *)(\\t+)/gm, (_, leading, tabs) => {\n return leading + ' '.repeat(tabs.length);\n });\n }\n\n let token, lastToken, cutSrc, lastParagraphClipped;\n\n while (src) {\n if (this.options.extensions\n && this.options.extensions.block\n && this.options.extensions.block.some((extTokenizer) => {\n if (token = extTokenizer.call({ lexer: this }, src, tokens)) {\n src = src.substring(token.raw.length);\n tokens.push(token);\n return true;\n }\n return false;\n })) {\n continue;\n }\n\n // newline\n if (token = this.tokenizer.space(src)) {\n src = src.substring(token.raw.length);\n if (token.raw.length === 1 && tokens.length > 0) {\n // if there's a single \\n as a spacer, it's terminating the last line,\n // so move it there so that we don't get unecessary paragraph tags\n tokens[tokens.length - 1].raw += '\\n';\n } else {\n tokens.push(token);\n }\n continue;\n }\n\n // code\n if (token = this.tokenizer.code(src)) {\n src = src.substring(token.raw.length);\n lastToken = tokens[tokens.length - 1];\n // An indented code block cannot interrupt a paragraph.\n if (lastToken && (lastToken.type === 'paragraph' || lastToken.type === 'text')) {\n lastToken.raw += '\\n' + token.raw;\n lastToken.text += '\\n' + token.text;\n this.inlineQueue[this.inlineQueue.length - 1].src = lastToken.text;\n } else {\n tokens.push(token);\n }\n continue;\n }\n\n // fences\n if (token = this.tokenizer.fences(src)) {\n src = src.substring(token.raw.length);\n tokens.push(token);\n continue;\n }\n\n // heading\n if (token = this.tokenizer.heading(src)) {\n src = src.substring(token.raw.length);\n tokens.push(token);\n continue;\n }\n\n // hr\n if (token = this.tokenizer.hr(src)) {\n src = src.substring(token.raw.length);\n tokens.push(token);\n continue;\n }\n\n // blockquote\n if (token = this.tokenizer.blockquote(src)) {\n src = src.substring(token.raw.length);\n tokens.push(token);\n continue;\n }\n\n // list\n if (token = this.tokenizer.list(src)) {\n src = src.substring(token.raw.length);\n tokens.push(token);\n continue;\n }\n\n // html\n if (token = this.tokenizer.html(src)) {\n src = src.substring(token.raw.length);\n tokens.push(token);\n continue;\n }\n\n // def\n if (token = this.tokenizer.def(src)) {\n src = src.substring(token.raw.length);\n lastToken = tokens[tokens.length - 1];\n if (lastToken && (lastToken.type === 'paragraph' || lastToken.type === 'text')) {\n lastToken.raw += '\\n' + token.raw;\n lastToken.text += '\\n' + token.raw;\n this.inlineQueue[this.inlineQueue.length - 1].src = lastToken.text;\n } else if (!this.tokens.links[token.tag]) {\n this.tokens.links[token.tag] = {\n href: token.href,\n title: token.title\n };\n }\n continue;\n }\n\n // table (gfm)\n if (token = this.tokenizer.table(src)) {\n src = src.substring(token.raw.length);\n tokens.push(token);\n continue;\n }\n\n // lheading\n if (token = this.tokenizer.lheading(src)) {\n src = src.substring(token.raw.length);\n tokens.push(token);\n continue;\n }\n\n // top-level paragraph\n // prevent paragraph consuming extensions by clipping 'src' to extension start\n cutSrc = src;\n if (this.options.extensions && this.options.extensions.startBlock) {\n let startIndex = Infinity;\n const tempSrc = src.slice(1);\n let tempStart;\n this.options.extensions.startBlock.forEach(function(getStartIndex) {\n tempStart = getStartIndex.call({ lexer: this }, tempSrc);\n if (typeof tempStart === 'number' && tempStart >= 0) { startIndex = Math.min(startIndex, tempStart); }\n });\n if (startIndex < Infinity && startIndex >= 0) {\n cutSrc = src.substring(0, startIndex + 1);\n }\n }\n if (this.state.top && (token = this.tokenizer.paragraph(cutSrc))) {\n lastToken = tokens[tokens.length - 1];\n if (lastParagraphClipped && lastToken.type === 'paragraph') {\n lastToken.raw += '\\n' + token.raw;\n lastToken.text += '\\n' + token.text;\n this.inlineQueue.pop();\n this.inlineQueue[this.inlineQueue.length - 1].src = lastToken.text;\n } else {\n tokens.push(token);\n }\n lastParagraphClipped = (cutSrc.length !== src.length);\n src = src.substring(token.raw.length);\n continue;\n }\n\n // text\n if (token = this.tokenizer.text(src)) {\n src = src.substring(token.raw.length);\n lastToken = tokens[tokens.length - 1];\n if (lastToken && lastToken.type === 'text') {\n lastToken.raw += '\\n' + token.raw;\n lastToken.text += '\\n' + token.text;\n this.inlineQueue.pop();\n this.inlineQueue[this.inlineQueue.length - 1].src = lastToken.text;\n } else {\n tokens.push(token);\n }\n continue;\n }\n\n if (src) {\n const errMsg = 'Infinite loop on byte: ' + src.charCodeAt(0);\n if (this.options.silent) {\n console.error(errMsg);\n break;\n } else {\n throw new Error(errMsg);\n }\n }\n }\n\n this.state.top = true;\n return tokens;\n }\n\n inline(src, tokens = []) {\n this.inlineQueue.push({ src, tokens });\n return tokens;\n }\n\n /**\n * Lexing/Compiling\n */\n inlineTokens(src, tokens = []) {\n let token, lastToken, cutSrc;\n\n // String with links masked to avoid interference with em and strong\n let maskedSrc = src;\n let match;\n let keepPrevChar, prevChar;\n\n // Mask out reflinks\n if (this.tokens.links) {\n const links = Object.keys(this.tokens.links);\n if (links.length > 0) {\n while ((match = this.tokenizer.rules.inline.reflinkSearch.exec(maskedSrc)) != null) {\n if (links.includes(match[0].slice(match[0].lastIndexOf('[') + 1, -1))) {\n maskedSrc = maskedSrc.slice(0, match.index) + '[' + 'a'.repeat(match[0].length - 2) + ']' + maskedSrc.slice(this.tokenizer.rules.inline.reflinkSearch.lastIndex);\n }\n }\n }\n }\n // Mask out other blocks\n while ((match = this.tokenizer.rules.inline.blockSkip.exec(maskedSrc)) != null) {\n maskedSrc = maskedSrc.slice(0, match.index) + '[' + 'a'.repeat(match[0].length - 2) + ']' + maskedSrc.slice(this.tokenizer.rules.inline.blockSkip.lastIndex);\n }\n\n // Mask out escaped characters\n while ((match = this.tokenizer.rules.inline.anyPunctuation.exec(maskedSrc)) != null) {\n maskedSrc = maskedSrc.slice(0, match.index) + '++' + maskedSrc.slice(this.tokenizer.rules.inline.anyPunctuation.lastIndex);\n }\n\n while (src) {\n if (!keepPrevChar) {\n prevChar = '';\n }\n keepPrevChar = false;\n\n // extensions\n if (this.options.extensions\n && this.options.extensions.inline\n && this.options.extensions.inline.some((extTokenizer) => {\n if (token = extTokenizer.call({ lexer: this }, src, tokens)) {\n src = src.substring(token.raw.length);\n tokens.push(token);\n return true;\n }\n return false;\n })) {\n continue;\n }\n\n // escape\n if (token = this.tokenizer.escape(src)) {\n src = src.substring(token.raw.length);\n tokens.push(token);\n continue;\n }\n\n // tag\n if (token = this.tokenizer.tag(src)) {\n src = src.substring(token.raw.length);\n lastToken = tokens[tokens.length - 1];\n if (lastToken && token.type === 'text' && lastToken.type === 'text') {\n lastToken.raw += token.raw;\n lastToken.text += token.text;\n } else {\n tokens.push(token);\n }\n continue;\n }\n\n // link\n if (token = this.tokenizer.link(src)) {\n src = src.substring(token.raw.length);\n tokens.push(token);\n continue;\n }\n\n // reflink, nolink\n if (token = this.tokenizer.reflink(src, this.tokens.links)) {\n src = src.substring(token.raw.length);\n lastToken = tokens[tokens.length - 1];\n if (lastToken && token.type === 'text' && lastToken.type === 'text') {\n lastToken.raw += token.raw;\n lastToken.text += token.text;\n } else {\n tokens.push(token);\n }\n continue;\n }\n\n // em & strong\n if (token = this.tokenizer.emStrong(src, maskedSrc, prevChar)) {\n src = src.substring(token.raw.length);\n tokens.push(token);\n continue;\n }\n\n // code\n if (token = this.tokenizer.codespan(src)) {\n src = src.substring(token.raw.length);\n tokens.push(token);\n continue;\n }\n\n // br\n if (token = this.tokenizer.br(src)) {\n src = src.substring(token.raw.length);\n tokens.push(token);\n continue;\n }\n\n // del (gfm)\n if (token = this.tokenizer.del(src)) {\n src = src.substring(token.raw.length);\n tokens.push(token);\n continue;\n }\n\n // autolink\n if (token = this.tokenizer.autolink(src, mangle)) {\n src = src.substring(token.raw.length);\n tokens.push(token);\n continue;\n }\n\n // url (gfm)\n if (!this.state.inLink && (token = this.tokenizer.url(src, mangle))) {\n src = src.substring(token.raw.length);\n tokens.push(token);\n continue;\n }\n\n // text\n // prevent inlineText consuming extensions by clipping 'src' to extension start\n cutSrc = src;\n if (this.options.extensions && this.options.extensions.startInline) {\n let startIndex = Infinity;\n const tempSrc = src.slice(1);\n let tempStart;\n this.options.extensions.startInline.forEach(function(getStartIndex) {\n tempStart = getStartIndex.call({ lexer: this }, tempSrc);\n if (typeof tempStart === 'number' && tempStart >= 0) { startIndex = Math.min(startIndex, tempStart); }\n });\n if (startIndex < Infinity && startIndex >= 0) {\n cutSrc = src.substring(0, startIndex + 1);\n }\n }\n if (token = this.tokenizer.inlineText(cutSrc, smartypants)) {\n src = src.substring(token.raw.length);\n if (token.raw.slice(-1) !== '_') { // Track prevChar before string of ____ started\n prevChar = token.raw.slice(-1);\n }\n keepPrevChar = true;\n lastToken = tokens[tokens.length - 1];\n if (lastToken && lastToken.type === 'text') {\n lastToken.raw += token.raw;\n lastToken.text += token.text;\n } else {\n tokens.push(token);\n }\n continue;\n }\n\n if (src) {\n const errMsg = 'Infinite loop on byte: ' + src.charCodeAt(0);\n if (this.options.silent) {\n console.error(errMsg);\n break;\n } else {\n throw new Error(errMsg);\n }\n }\n }\n\n return tokens;\n }\n}\n\n/**\n * Renderer\n */\nclass Renderer {\n constructor(options) {\n this.options = options || defaults;\n }\n\n code(code, infostring, escaped) {\n const lang = (infostring || '').match(/\\S*/)[0];\n if (this.options.highlight) {\n const out = this.options.highlight(code, lang);\n if (out != null && out !== code) {\n escaped = true;\n code = out;\n }\n }\n\n code = code.replace(/\\n$/, '') + '\\n';\n\n if (!lang) {\n return ''\n + (escaped ? code : escape(code, true))\n + '
\\n';\n }\n\n return ''\n + (escaped ? code : escape(code, true))\n + '
\\n';\n }\n\n /**\n * @param {string} quote\n */\n blockquote(quote) {\n return `\\n${quote}
\\n`;\n }\n\n html(html, block) {\n return html;\n }\n\n /**\n * @param {string} text\n * @param {string} level\n * @param {string} raw\n * @param {any} slugger\n */\n heading(text, level, raw, slugger) {\n if (this.options.headerIds) {\n const id = this.options.headerPrefix + slugger.slug(raw);\n return `${text}\\n`;\n }\n\n // ignore IDs\n return `${text}\\n`;\n }\n\n hr() {\n return this.options.xhtml ? '
\\n' : '
\\n';\n }\n\n list(body, ordered, start) {\n const type = ordered ? 'ol' : 'ul',\n startatt = (ordered && start !== 1) ? (' start=\"' + start + '\"') : '';\n return '<' + type + startatt + '>\\n' + body + '\\n';\n }\n\n /**\n * @param {string} text\n */\n listitem(text) {\n return `${text}\\n`;\n }\n\n checkbox(checked) {\n return ' ';\n }\n\n /**\n * @param {string} text\n */\n paragraph(text) {\n return `${text}
\\n`;\n }\n\n /**\n * @param {string} header\n * @param {string} body\n */\n table(header, body) {\n if (body) body = `${body}`;\n\n return '