1 |
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2 |
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3 |
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4 |
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5 |
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6 |
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7 | ;(function(root) {
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8 | 'use strict';
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9 |
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10 |
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11 |
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12 |
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13 |
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14 | var block = {
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15 | newline: /^\n+/,
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16 | code: /^( {4}[^\n]+\n*)+/,
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17 | fences: noop,
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18 | hr: /^ {0,3}((?:- *){3,}|(?:_ *){3,}|(?:\* *){3,})(?:\n+|$)/,
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19 | heading: /^ *(#{1,6}) *([^\n]+?) *#* *(?:\n+|$)/,
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20 | nptable: noop,
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21 | blockquote: /^( {0,3}> ?(paragraph|[^\n]*)(?:\n|$))+/,
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22 | list: /^( *)(bull) [\s\S]+?(?:hr|def|\n{2,}(?! )(?!\1bull )\n*|\s*$)/,
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23 | html: /^ *(?:comment *(?:\n|\s*$)|closed *(?:\n{2,}|\s*$)|closing *(?:\n{2,}|\s*$))/,
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24 | def: /^ {0,3}\[(label)\]: *\n? *<?([^\s>]+)>?(?:(?: +\n? *| *\n *)(title))? *(?:\n+|$)/,
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25 | table: noop,
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26 | lheading: /^([^\n]+)\n *(=|-){2,} *(?:\n+|$)/,
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27 | paragraph: /^([^\n]+(?:\n?(?!hr|heading|lheading| {0,3}>|tag)[^\n]+)+)/,
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28 | text: /^[^\n]+/
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29 | };
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30 |
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31 | block._label = /(?:\\[\[\]]|[^\[\]])+/;
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32 | block._title = /(?:"(?:\\"|[^"]|"[^"\n]*")*"|'\n?(?:[^'\n]+\n?)*'|\([^()]*\))/;
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33 | block.def = edit(block.def)
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34 | .replace('label', block._label)
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35 | .replace('title', block._title)
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36 | .getRegex();
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37 |
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38 | block.bullet = /(?:[*+-]|\d+\.)/;
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39 | block.item = /^( *)(bull) [^\n]*(?:\n(?!\1bull )[^\n]*)*/;
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40 | block.item = edit(block.item, 'gm')
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41 | .replace(/bull/g, block.bullet)
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42 | .getRegex();
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43 |
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44 | block.list = edit(block.list)
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45 | .replace(/bull/g, block.bullet)
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46 | .replace('hr', '\\n+(?=\\1?(?:(?:- *){3,}|(?:_ *){3,}|(?:\\* *){3,})(?:\\n+|$))')
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47 | .replace('def', '\\n+(?=' + block.def.source + ')')
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48 | .getRegex();
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49 |
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50 | block._tag = '(?!(?:'
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51 | + 'a|em|strong|small|s|cite|q|dfn|abbr|data|time|code'
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52 | + '|var|samp|kbd|sub|sup|i|b|u|mark|ruby|rt|rp|bdi|bdo'
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53 | + '|span|br|wbr|ins|del|img)\\b)\\w+(?!:|[^\\w\\s@]*@)\\b';
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54 |
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55 | block.html = edit(block.html)
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56 | .replace('comment', //)
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57 | .replace('closed', /<(tag)[\s\S]+?<\/\1>/)
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58 | .replace('closing', /<tag(?:"[^"]*"|'[^']*'|\s[^'"\/>\s]*)*?\/?>/)
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59 | .replace(/tag/g, block._tag)
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60 | .getRegex();
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61 |
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62 | block.paragraph = edit(block.paragraph)
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63 | .replace('hr', block.hr)
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64 | .replace('heading', block.heading)
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65 | .replace('lheading', block.lheading)
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66 | .replace('tag', '<' + block._tag)
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67 | .getRegex();
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68 |
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69 | block.blockquote = edit(block.blockquote)
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70 | .replace('paragraph', block.paragraph)
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71 | .getRegex();
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72 |
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73 | /**
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74 | * Normal Block Grammar
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75 | */
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76 |
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77 | block.normal = merge({}, block);
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78 |
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79 | /**
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80 | * GFM Block Grammar
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81 | */
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82 |
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83 | block.gfm = merge({}, block.normal, {
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84 | fences: /^ *(`{3,}|~{3,})[ \.]*(\S+)? *\n([\s\S]*?)\n? *\1 *(?:\n+|$)/,
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85 | paragraph: /^/,
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86 | heading: /^ *(#{1,6}) +([^\n]+?) *#* *(?:\n+|$)/
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87 | });
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88 |
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89 | block.gfm.paragraph = edit(block.paragraph)
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90 | .replace('(?!', '(?!'
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91 | + block.gfm.fences.source.replace('\\1', '\\2') + '|'
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92 | + block.list.source.replace('\\1', '\\3') + '|')
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93 | .getRegex();
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94 |
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95 | /**
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96 | * GFM + Tables Block Grammar
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97 | */
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98 |
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99 | block.tables = merge({}, block.gfm, {
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100 | nptable: /^ *(\S.*\|.*)\n *([-:]+ *\|[-| :]*)\n((?:.*\|.*(?:\n|$))*)\n*/,
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101 | table: /^ *\|(.+)\n *\|( *[-:]+[-| :]*)\n((?: *\|.*(?:\n|$))*)\n*/
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102 | });
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103 |
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104 | /**
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105 | * Block Lexer
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106 | */
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107 |
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108 | function Lexer(options) {
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109 | this.tokens = [];
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110 | this.tokens.links = {};
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111 | this.options = options || marked.defaults;
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112 | this.rules = block.normal;
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113 |
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114 | if (this.options.gfm) {
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115 | if (this.options.tables) {
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116 | this.rules = block.tables;
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117 | } else {
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118 | this.rules = block.gfm;
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119 | }
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120 | }
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121 | }
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122 |
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123 | /**
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124 | * Expose Block Rules
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125 | */
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126 |
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127 | Lexer.rules = block;
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128 |
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129 | /**
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130 | * Static Lex Method
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131 | */
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132 |
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133 | Lexer.lex = function(src, options) {
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134 | var lexer = new Lexer(options);
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135 | return lexer.lex(src);
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136 | };
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137 |
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138 | /**
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139 | * Preprocessing
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140 | */
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141 |
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142 | Lexer.prototype.lex = function(src) {
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143 | src = src
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144 | .replace(/\r\n|\r/g, '\n')
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145 | .replace(/\t/g, ' ')
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146 | .replace(/\u00a0/g, ' ')
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147 | .replace(/\u2424/g, '\n');
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148 |
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149 | return this.token(src, true);
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150 | };
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151 |
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152 | /**
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153 | * Lexing
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154 | */
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155 |
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156 | Lexer.prototype.token = function(src, top) {
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157 | src = src.replace(/^ +$/gm, '');
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158 | var next,
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159 | loose,
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160 | cap,
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161 | bull,
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162 | b,
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163 | item,
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164 | space,
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165 | i,
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166 | tag,
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167 | l,
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168 | isordered;
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169 |
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170 | while (src) {
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171 | // newline
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172 | if (cap = this.rules.newline.exec(src)) {
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173 | src = src.substring(cap[0].length);
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174 | if (cap[0].length > 1) {
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175 | this.tokens.push({
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176 | type: 'space'
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177 | });
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178 | }
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179 | }
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180 |
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181 | // code
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182 | if (cap = this.rules.code.exec(src)) {
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183 | src = src.substring(cap[0].length);
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184 | cap = cap[0].replace(/^ {4}/gm, '');
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185 | this.tokens.push({
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186 | type: 'code',
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187 | text: !this.options.pedantic
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188 | ? cap.replace(/\n+$/, '')
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189 | : cap
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190 | });
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191 | continue;
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192 | }
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193 |
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194 | // fences (gfm)
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195 | if (cap = this.rules.fences.exec(src)) {
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196 | src = src.substring(cap[0].length);
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197 | this.tokens.push({
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198 | type: 'code',
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199 | lang: cap[2],
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200 | text: cap[3] || ''
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201 | });
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202 | continue;
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203 | }
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204 |
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205 | // heading
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206 | if (cap = this.rules.heading.exec(src)) {
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207 | src = src.substring(cap[0].length);
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208 | this.tokens.push({
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209 | type: 'heading',
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210 | depth: cap[1].length,
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211 | text: cap[2]
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212 | });
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213 | continue;
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214 | }
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215 |
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216 | // table no leading pipe (gfm)
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217 | if (top && (cap = this.rules.nptable.exec(src))) {
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218 | src = src.substring(cap[0].length);
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219 |
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220 | item = {
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221 | type: 'table',
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222 | header: cap[1].replace(/^ *| *\| *$/g, '').split(/ *\| */),
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223 | align: cap[2].replace(/^ *|\| *$/g, '').split(/ *\| */),
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224 | cells: cap[3].replace(/\n$/, '').split('\n')
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225 | };
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226 |
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227 | for (i = 0; i < item.align.length; i++) {
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228 | if (/^ *-+: *$/.test(item.align[i])) {
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229 | item.align[i] = 'right';
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230 | } else if (/^ *:-+: *$/.test(item.align[i])) {
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231 | item.align[i] = 'center';
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232 | } else if (/^ *:-+ *$/.test(item.align[i])) {
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233 | item.align[i] = 'left';
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234 | } else {
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235 | item.align[i] = null;
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236 | }
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237 | }
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238 |
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239 | for (i = 0; i < item.cells.length; i++) {
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240 | item.cells[i] = item.cells[i].split(/ *\| */);
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241 | }
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242 |
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243 | this.tokens.push(item);
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244 |
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245 | continue;
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246 | }
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247 |
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248 | // hr
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249 | if (cap = this.rules.hr.exec(src)) {
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250 | src = src.substring(cap[0].length);
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251 | this.tokens.push({
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252 | type: 'hr'
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253 | });
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254 | continue;
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255 | }
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256 |
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257 | // blockquote
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258 | if (cap = this.rules.blockquote.exec(src)) {
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259 | src = src.substring(cap[0].length);
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260 |
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261 | this.tokens.push({
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262 | type: 'blockquote_start'
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263 | });
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264 |
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265 | cap = cap[0].replace(/^ *> ?/gm, '');
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266 |
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267 | // Pass `top` to keep the current
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268 | // "toplevel" state. This is exactly
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269 | // how markdown.pl works.
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270 | this.token(cap, top);
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271 |
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272 | this.tokens.push({
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273 | type: 'blockquote_end'
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274 | });
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275 |
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276 | continue;
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277 | }
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278 |
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279 | // list
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280 | if (cap = this.rules.list.exec(src)) {
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281 | src = src.substring(cap[0].length);
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282 | bull = cap[2];
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283 | isordered = bull.length > 1;
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284 |
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285 | this.tokens.push({
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286 | type: 'list_start',
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287 | ordered: isordered,
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288 | start: isordered ? +bull : ''
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289 | });
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290 |
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291 | // Get each top-level item.
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292 | cap = cap[0].match(this.rules.item);
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293 |
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294 | next = false;
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295 | l = cap.length;
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296 | i = 0;
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297 |
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298 | for (; i < l; i++) {
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299 | item = cap[i];
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300 |
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301 | // Remove the list item's bullet
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302 | // so it is seen as the next token.
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303 | space = item.length;
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304 | item = item.replace(/^ *([*+-]|\d+\.) +/, '');
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305 |
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306 | // Outdent whatever the
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307 | // list item contains. Hacky.
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308 | if (~item.indexOf('\n ')) {
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309 | space -= item.length;
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310 | item = !this.options.pedantic
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311 | ? item.replace(new RegExp('^ {1,' + space + '}', 'gm'), '')
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312 | : item.replace(/^ {1,4}/gm, '');
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313 | }
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314 |
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315 | // Determine whether the next list item belongs here.
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316 | // Backpedal if it does not belong in this list.
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317 | if (this.options.smartLists && i !== l - 1) {
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318 | b = block.bullet.exec(cap[i + 1])[0];
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319 | if (bull !== b && !(bull.length > 1 && b.length > 1)) {
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320 | src = cap.slice(i + 1).join('\n') + src;
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321 | i = l - 1;
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322 | }
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323 | }
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324 |
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325 | // Determine whether item is loose or not.
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326 | // Use: /(^|\n)(?! )[^\n]+\n\n(?!\s*$)/
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327 | // for discount behavior.
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328 | loose = next || /\n\n(?!\s*$)/.test(item);
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329 | if (i !== l - 1) {
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330 | next = item.charAt(item.length - 1) === '\n';
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331 | if (!loose) loose = next;
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332 | }
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333 |
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334 | this.tokens.push({
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335 | type: loose
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336 | ? 'loose_item_start'
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337 | : 'list_item_start'
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338 | });
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339 |
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340 | // Recurse.
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341 | this.token(item, false);
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342 |
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343 | this.tokens.push({
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344 | type: 'list_item_end'
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345 | });
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346 | }
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347 |
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348 | this.tokens.push({
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349 | type: 'list_end'
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350 | });
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351 |
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352 | continue;
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353 | }
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354 |
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355 | // html
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356 | if (cap = this.rules.html.exec(src)) {
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357 | src = src.substring(cap[0].length);
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358 | this.tokens.push({
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359 | type: this.options.sanitize
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360 | ? 'paragraph'
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361 | : 'html',
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362 | pre: !this.options.sanitizer
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363 | && (cap[1] === 'pre' || cap[1] === 'script' || cap[1] === 'style'),
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364 | text: cap[0]
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365 | });
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366 | continue;
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367 | }
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368 |
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369 | // def
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370 | if (top && (cap = this.rules.def.exec(src))) {
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371 | src = src.substring(cap[0].length);
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372 | if (cap[3]) cap[3] = cap[3].substring(1, cap[3].length - 1);
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373 | tag = cap[1].toLowerCase();
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374 | if (!this.tokens.links[tag]) {
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375 | this.tokens.links[tag] = {
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376 | href: cap[2],
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377 | title: cap[3]
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378 | };
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379 | }
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380 | continue;
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381 | }
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382 |
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383 | // table (gfm)
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384 | if (top && (cap = this.rules.table.exec(src))) {
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385 | src = src.substring(cap[0].length);
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386 |
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387 | item = {
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388 | type: 'table',
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389 | header: cap[1].replace(/^ *| *\| *$/g, '').split(/ *\| */),
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390 | align: cap[2].replace(/^ *|\| *$/g, '').split(/ *\| */),
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391 | cells: cap[3].replace(/(?: *\| *)?\n$/, '').split('\n')
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392 | };
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393 |
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394 | for (i = 0; i < item.align.length; i++) {
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395 | if (/^ *-+: *$/.test(item.align[i])) {
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396 | item.align[i] = 'right';
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397 | } else if (/^ *:-+: *$/.test(item.align[i])) {
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398 | item.align[i] = 'center';
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399 | } else if (/^ *:-+ *$/.test(item.align[i])) {
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400 | item.align[i] = 'left';
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401 | } else {
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402 | item.align[i] = null;
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403 | }
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404 | }
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405 |
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406 | for (i = 0; i < item.cells.length; i++) {
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407 | item.cells[i] = item.cells[i]
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408 | .replace(/^ *\| *| *\| *$/g, '')
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409 | .split(/ *\| */);
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410 | }
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411 |
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412 | this.tokens.push(item);
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413 |
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414 | continue;
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415 | }
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416 |
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417 | // lheading
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418 | if (cap = this.rules.lheading.exec(src)) {
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419 | src = src.substring(cap[0].length);
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420 | this.tokens.push({
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421 | type: 'heading',
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422 | depth: cap[2] === '=' ? 1 : 2,
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423 | text: cap[1]
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424 | });
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425 | continue;
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426 | }
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427 |
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428 | // top-level paragraph
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429 | if (top && (cap = this.rules.paragraph.exec(src))) {
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430 | src = src.substring(cap[0].length);
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431 | this.tokens.push({
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432 | type: 'paragraph',
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433 | text: cap[1].charAt(cap[1].length - 1) === '\n'
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434 | ? cap[1].slice(0, -1)
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435 | : cap[1]
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436 | });
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437 | continue;
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438 | }
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439 |
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440 | // text
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441 | if (cap = this.rules.text.exec(src)) {
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442 | // Top-level should never reach here.
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443 | src = src.substring(cap[0].length);
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444 | this.tokens.push({
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445 | type: 'text',
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446 | text: cap[0]
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447 | });
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448 | continue;
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449 | }
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450 |
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451 | if (src) {
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452 | throw new Error('Infinite loop on byte: ' + src.charCodeAt(0));
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453 | }
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454 | }
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455 |
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456 | return this.tokens;
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457 | };
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458 |
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459 | /**
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460 | * Inline-Level Grammar
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461 | */
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462 |
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463 | var inline = {
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464 | escape: /^\\([\\`*{}\[\]()#+\-.!_>])/,
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465 | autolink: /^<(scheme:[^\s\x00-\x1f<>]*|email)>/,
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466 | url: noop,
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467 | tag: /^<!--[\s\S]*?-->|^<\/?[a-zA-Z0-9\-]+(?:"[^"]*"|'[^']*'|\s[^<'">\/\s]*)*?\/?>/,
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468 | link: /^!?\[(inside)\]\(href\)/,
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469 | reflink: /^!?\[(inside)\]\s*\[([^\]]*)\]/,
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470 | nolink: /^!?\[((?:\[[^\[\]]*\]|\\[\[\]]|[^\[\]])*)\]/,
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471 | strong: /^__([\s\S]+?)__(?!_)|^\*\*([\s\S]+?)\*\*(?!\*)/,
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472 | em: /^_([^\s_](?:[^_]|__)+?[^\s_])_\b|^\*((?:\*\*|[^*])+?)\*(?!\*)/,
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473 | code: /^(`+)\s*([\s\S]*?[^`]?)\s*\1(?!`)/,
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474 | br: /^ {2,}\n(?!\s*$)/,
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475 | del: noop,
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476 | text: /^[\s\S]+?(?=[\\<!\[`*]|\b_| {2,}\n|$)/
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477 | };
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478 |
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479 | inline._scheme = /[a-zA-Z][a-zA-Z0-9+.-]{1,31}/;
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480 | inline._email = /[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+(@)[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])?)+(?![-_])/;
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481 |
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482 | inline.autolink = edit(inline.autolink)
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483 | .replace('scheme', inline._scheme)
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484 | .replace('email', inline._email)
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485 | .getRegex()
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486 |
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487 | inline._inside = /(?:\[[^\[\]]*\]|\\[\[\]]|[^\[\]]|\](?=[^\[]*\]))*/;
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488 | inline._href = /\s*<?([\s\S]*?)>?(?:\s+['"]([\s\S]*?)['"])?\s*/;
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489 |
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490 | inline.link = edit(inline.link)
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491 | .replace('inside', inline._inside)
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492 | .replace('href', inline._href)
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493 | .getRegex();
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494 |
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495 | inline.reflink = edit(inline.reflink)
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496 | .replace('inside', inline._inside)
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497 | .getRegex();
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498 |
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499 | /**
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500 | * Normal Inline Grammar
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501 | */
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502 |
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503 | inline.normal = merge({}, inline);
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504 |
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505 | /**
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506 | * Pedantic Inline Grammar
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507 | */
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508 |
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509 | inline.pedantic = merge({}, inline.normal, {
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510 | strong: /^__(?=\S)([\s\S]*?\S)__(?!_)|^\*\*(?=\S)([\s\S]*?\S)\*\*(?!\*)/,
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511 | em: /^_(?=\S)([\s\S]*?\S)_(?!_)|^\*(?=\S)([\s\S]*?\S)\*(?!\*)/
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512 | });
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513 |
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514 | /**
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515 | * GFM Inline Grammar
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516 | */
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517 |
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518 | inline.gfm = merge({}, inline.normal, {
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519 | escape: edit(inline.escape).replace('])', '~|])').getRegex(),
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520 | url: edit(/^((?:ftp|https?):\/\/|www\.)(?:[a-zA-Z0-9\-]+\.?)+[^\s<]*|^email/)
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521 | .replace('email', inline._email)
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522 | .getRegex(),
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523 | _backpedal: /(?:[^?!.,:;*_~()&]+|\([^)]*\)|&(?![a-zA-Z0-9]+;$)|[?!.,:;*_~)]+(?!$))+/,
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524 | del: /^~~(?=\S)([\s\S]*?\S)~~/,
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525 | text: edit(inline.text)
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526 | .replace(']|', '~]|')
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527 | .replace('|', '|https?://|ftp://|www\\.|[a-zA-Z0-9.!#$%&\'*+/=?^_`{\\|}~-]+@|')
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528 | .getRegex()
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529 | });
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530 |
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531 | /**
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532 | * GFM + Line Breaks Inline Grammar
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533 | */
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534 |
|
535 | inline.breaks = merge({}, inline.gfm, {
|
536 | br: edit(inline.br).replace('{2,}', '*').getRegex(),
|
537 | text: edit(inline.gfm.text).replace('{2,}', '*').getRegex()
|
538 | });
|
539 |
|
540 | /**
|
541 | * Inline Lexer & Compiler
|
542 | */
|
543 |
|
544 | function InlineLexer(links, options) {
|
545 | this.options = options || marked.defaults;
|
546 | this.links = links;
|
547 | this.rules = inline.normal;
|
548 | this.renderer = this.options.renderer || new Renderer();
|
549 | this.renderer.options = this.options;
|
550 |
|
551 | if (!this.links) {
|
552 | throw new Error('Tokens array requires a `links` property.');
|
553 | }
|
554 |
|
555 | if (this.options.gfm) {
|
556 | if (this.options.breaks) {
|
557 | this.rules = inline.breaks;
|
558 | } else {
|
559 | this.rules = inline.gfm;
|
560 | }
|
561 | } else if (this.options.pedantic) {
|
562 | this.rules = inline.pedantic;
|
563 | }
|
564 | }
|
565 |
|
566 | /**
|
567 | * Expose Inline Rules
|
568 | */
|
569 |
|
570 | InlineLexer.rules = inline;
|
571 |
|
572 | /**
|
573 | * Static Lexing/Compiling Method
|
574 | */
|
575 |
|
576 | InlineLexer.output = function(src, links, options) {
|
577 | var inline = new InlineLexer(links, options);
|
578 | return inline.output(src);
|
579 | };
|
580 |
|
581 | /**
|
582 | * Lexing/Compiling
|
583 | */
|
584 |
|
585 | InlineLexer.prototype.output = function(src) {
|
586 | var out = '',
|
587 | link,
|
588 | text,
|
589 | href,
|
590 | cap;
|
591 |
|
592 | while (src) {
|
593 | // escape
|
594 | if (cap = this.rules.escape.exec(src)) {
|
595 | src = src.substring(cap[0].length);
|
596 | out += cap[1];
|
597 | continue;
|
598 | }
|
599 |
|
600 | // autolink
|
601 | if (cap = this.rules.autolink.exec(src)) {
|
602 | src = src.substring(cap[0].length);
|
603 | if (cap[2] === '@') {
|
604 | text = escape(this.mangle(cap[1]));
|
605 | href = 'mailto:' + text;
|
606 | } else {
|
607 | text = escape(cap[1]);
|
608 | href = text;
|
609 | }
|
610 | out += this.renderer.link(href, null, text);
|
611 | continue;
|
612 | }
|
613 |
|
614 | // url (gfm)
|
615 | if (!this.inLink && (cap = this.rules.url.exec(src))) {
|
616 | cap[0] = this.rules._backpedal.exec(cap[0])[0];
|
617 | src = src.substring(cap[0].length);
|
618 | if (cap[2] === '@') {
|
619 | text = escape(cap[0]);
|
620 | href = 'mailto:' + text;
|
621 | } else {
|
622 | text = escape(cap[0]);
|
623 | if (cap[1] === 'www.') {
|
624 | href = 'http://' + text;
|
625 | } else {
|
626 | href = text;
|
627 | }
|
628 | }
|
629 | out += this.renderer.link(href, null, text);
|
630 | continue;
|
631 | }
|
632 |
|
633 | // tag
|
634 | if (cap = this.rules.tag.exec(src)) {
|
635 | if (!this.inLink && /^<a /i.test(cap[0])) {
|
636 | this.inLink = true;
|
637 | } else if (this.inLink && /^<\/a>/i.test(cap[0])) {
|
638 | this.inLink = false;
|
639 | }
|
640 | src = src.substring(cap[0].length);
|
641 | out += this.options.sanitize
|
642 | ? this.options.sanitizer
|
643 | ? this.options.sanitizer(cap[0])
|
644 | : escape(cap[0])
|
645 | : cap[0]
|
646 | continue;
|
647 | }
|
648 |
|
649 | // link
|
650 | if (cap = this.rules.link.exec(src)) {
|
651 | src = src.substring(cap[0].length);
|
652 | this.inLink = true;
|
653 | out += this.outputLink(cap, {
|
654 | href: cap[2],
|
655 | title: cap[3]
|
656 | });
|
657 | this.inLink = false;
|
658 | continue;
|
659 | }
|
660 |
|
661 | // reflink, nolink
|
662 | if ((cap = this.rules.reflink.exec(src))
|
663 | || (cap = this.rules.nolink.exec(src))) {
|
664 | src = src.substring(cap[0].length);
|
665 | link = (cap[2] || cap[1]).replace(/\s+/g, ' ');
|
666 | link = this.links[link.toLowerCase()];
|
667 | if (!link || !link.href) {
|
668 | out += cap[0].charAt(0);
|
669 | src = cap[0].substring(1) + src;
|
670 | continue;
|
671 | }
|
672 | this.inLink = true;
|
673 | out += this.outputLink(cap, link);
|
674 | this.inLink = false;
|
675 | continue;
|
676 | }
|
677 |
|
678 | // strong
|
679 | if (cap = this.rules.strong.exec(src)) {
|
680 | src = src.substring(cap[0].length);
|
681 | out += this.renderer.strong(this.output(cap[2] || cap[1]));
|
682 | continue;
|
683 | }
|
684 |
|
685 | // em
|
686 | if (cap = this.rules.em.exec(src)) {
|
687 | src = src.substring(cap[0].length);
|
688 | out += this.renderer.em(this.output(cap[2] || cap[1]));
|
689 | continue;
|
690 | }
|
691 |
|
692 | // code
|
693 | if (cap = this.rules.code.exec(src)) {
|
694 | src = src.substring(cap[0].length);
|
695 | out += this.renderer.codespan(escape(cap[2].trim(), true));
|
696 | continue;
|
697 | }
|
698 |
|
699 | // br
|
700 | if (cap = this.rules.br.exec(src)) {
|
701 | src = src.substring(cap[0].length);
|
702 | out += this.renderer.br();
|
703 | continue;
|
704 | }
|
705 |
|
706 | // del (gfm)
|
707 | if (cap = this.rules.del.exec(src)) {
|
708 | src = src.substring(cap[0].length);
|
709 | out += this.renderer.del(this.output(cap[1]));
|
710 | continue;
|
711 | }
|
712 |
|
713 | // text
|
714 | if (cap = this.rules.text.exec(src)) {
|
715 | src = src.substring(cap[0].length);
|
716 | out += this.renderer.text(escape(this.smartypants(cap[0])));
|
717 | continue;
|
718 | }
|
719 |
|
720 | if (src) {
|
721 | throw new Error('Infinite loop on byte: ' + src.charCodeAt(0));
|
722 | }
|
723 | }
|
724 |
|
725 | return out;
|
726 | };
|
727 |
|
728 | /**
|
729 | * Compile Link
|
730 | */
|
731 |
|
732 | InlineLexer.prototype.outputLink = function(cap, link) {
|
733 | var href = escape(link.href),
|
734 | title = link.title ? escape(link.title) : null;
|
735 |
|
736 | return cap[0].charAt(0) !== '!'
|
737 | ? this.renderer.link(href, title, this.output(cap[1]))
|
738 | : this.renderer.image(href, title, escape(cap[1]));
|
739 | };
|
740 |
|
741 | /**
|
742 | * Smartypants Transformations
|
743 | */
|
744 |
|
745 | InlineLexer.prototype.smartypants = function(text) {
|
746 | if (!this.options.smartypants) return text;
|
747 | return text
|
748 | // em-dashes
|
749 | .replace(/---/g, '\u2014')
|
750 | // en-dashes
|
751 | .replace(/--/g, '\u2013')
|
752 | // opening singles
|
753 | .replace(/(^|[-\u2014/(\[{"\s])'/g, '$1\u2018')
|
754 | // closing singles & apostrophes
|
755 | .replace(/'/g, '\u2019')
|
756 | // opening doubles
|
757 | .replace(/(^|[-\u2014/(\[{\u2018\s])"/g, '$1\u201c')
|
758 | // closing doubles
|
759 | .replace(/"/g, '\u201d')
|
760 | // ellipses
|
761 | .replace(/\.{3}/g, '\u2026');
|
762 | };
|
763 |
|
764 | /**
|
765 | * Mangle Links
|
766 | */
|
767 |
|
768 | InlineLexer.prototype.mangle = function(text) {
|
769 | if (!this.options.mangle) return text;
|
770 | var out = '',
|
771 | l = text.length,
|
772 | i = 0,
|
773 | ch;
|
774 |
|
775 | for (; i < l; i++) {
|
776 | ch = text.charCodeAt(i);
|
777 | if (Math.random() > 0.5) {
|
778 | ch = 'x' + ch.toString(16);
|
779 | }
|
780 | out += '&#' + ch + ';';
|
781 | }
|
782 |
|
783 | return out;
|
784 | };
|
785 |
|
786 | /**
|
787 | * Renderer
|
788 | */
|
789 |
|
790 | function Renderer(options) {
|
791 | this.options = options || {};
|
792 | }
|
793 |
|
794 | Renderer.prototype.code = function(code, lang, escaped) {
|
795 | if (this.options.highlight) {
|
796 | var out = this.options.highlight(code, lang);
|
797 | if (out != null && out !== code) {
|
798 | escaped = true;
|
799 | code = out;
|
800 | }
|
801 | }
|
802 |
|
803 | if (!lang) {
|
804 | return '<pre><code>'
|
805 | + (escaped ? code : escape(code, true))
|
806 | + '\n</code></pre>';
|
807 | }
|
808 |
|
809 | return '<pre><code class="'
|
810 | + this.options.langPrefix
|
811 | + escape(lang, true)
|
812 | + '">'
|
813 | + (escaped ? code : escape(code, true))
|
814 | + '\n</code></pre>\n';
|
815 | };
|
816 |
|
817 | Renderer.prototype.blockquote = function(quote) {
|
818 | return '<blockquote>\n' + quote + '</blockquote>\n';
|
819 | };
|
820 |
|
821 | Renderer.prototype.html = function(html) {
|
822 | return html;
|
823 | };
|
824 |
|
825 | Renderer.prototype.heading = function(text, level, raw) {
|
826 | return '<h'
|
827 | + level
|
828 | + ' id="'
|
829 | + this.options.headerPrefix
|
830 | + raw.toLowerCase().replace(/[^\w]+/g, '-')
|
831 | + '">'
|
832 | + text
|
833 | + '</h'
|
834 | + level
|
835 | + '>\n';
|
836 | };
|
837 |
|
838 | Renderer.prototype.hr = function() {
|
839 | return this.options.xhtml ? '<hr/>\n' : '<hr>\n';
|
840 | };
|
841 |
|
842 | Renderer.prototype.list = function(body, ordered, start) {
|
843 | var type = ordered ? 'ol' : 'ul',
|
844 | startatt = (ordered && start !== 1) ? (' start="' + start + '"') : '';
|
845 | return '<' + type + startatt + '>\n' + body + '</' + type + '>\n';
|
846 | };
|
847 |
|
848 | Renderer.prototype.listitem = function(text) {
|
849 | return '<li>' + text + '</li>\n';
|
850 | };
|
851 |
|
852 | Renderer.prototype.paragraph = function(text) {
|
853 | return '<p>' + text + '</p>\n';
|
854 | };
|
855 |
|
856 | Renderer.prototype.table = function(header, body) {
|
857 | return '<table>\n'
|
858 | + '<thead>\n'
|
859 | + header
|
860 | + '</thead>\n'
|
861 | + '<tbody>\n'
|
862 | + body
|
863 | + '</tbody>\n'
|
864 | + '</table>\n';
|
865 | };
|
866 |
|
867 | Renderer.prototype.tablerow = function(content) {
|
868 | return '<tr>\n' + content + '</tr>\n';
|
869 | };
|
870 |
|
871 | Renderer.prototype.tablecell = function(content, flags) {
|
872 | var type = flags.header ? 'th' : 'td';
|
873 | var tag = flags.align
|
874 | ? '<' + type + ' style="text-align:' + flags.align + '">'
|
875 | : '<' + type + '>';
|
876 | return tag + content + '</' + type + '>\n';
|
877 | };
|
878 |
|
879 | // span level renderer
|
880 | Renderer.prototype.strong = function(text) {
|
881 | return '<strong>' + text + '</strong>';
|
882 | };
|
883 |
|
884 | Renderer.prototype.em = function(text) {
|
885 | return '<em>' + text + '</em>';
|
886 | };
|
887 |
|
888 | Renderer.prototype.codespan = function(text) {
|
889 | return '<code>' + text + '</code>';
|
890 | };
|
891 |
|
892 | Renderer.prototype.br = function() {
|
893 | return this.options.xhtml ? '<br/>' : '<br>';
|
894 | };
|
895 |
|
896 | Renderer.prototype.del = function(text) {
|
897 | return '<del>' + text + '</del>';
|
898 | };
|
899 |
|
900 | Renderer.prototype.link = function(href, title, text) {
|
901 | if (this.options.sanitize) {
|
902 | try {
|
903 | var prot = decodeURIComponent(unescape(href))
|
904 | .replace(/[^\w:]/g, '')
|
905 | .toLowerCase();
|
906 | } catch (e) {
|
907 | return text;
|
908 | }
|
909 | if (prot.indexOf('javascript:') === 0 || prot.indexOf('vbscript:') === 0 || prot.indexOf('data:') === 0) {
|
910 | return text;
|
911 | }
|
912 | }
|
913 | if (this.options.baseUrl && !originIndependentUrl.test(href)) {
|
914 | href = resolveUrl(this.options.baseUrl, href);
|
915 | }
|
916 | var out = '<a href="' + href + '"';
|
917 | if (title) {
|
918 | out += ' title="' + title + '"';
|
919 | }
|
920 | out += '>' + text + '</a>';
|
921 | return out;
|
922 | };
|
923 |
|
924 | Renderer.prototype.image = function(href, title, text) {
|
925 | if (this.options.baseUrl && !originIndependentUrl.test(href)) {
|
926 | href = resolveUrl(this.options.baseUrl, href);
|
927 | }
|
928 | var out = '<img src="' + href + '" alt="' + text + '"';
|
929 | if (title) {
|
930 | out += ' title="' + title + '"';
|
931 | }
|
932 | out += this.options.xhtml ? '/>' : '>';
|
933 | return out;
|
934 | };
|
935 |
|
936 | Renderer.prototype.text = function(text) {
|
937 | return text;
|
938 | };
|
939 |
|
940 | /**
|
941 | * TextRenderer
|
942 | * returns only the textual part of the token
|
943 | */
|
944 |
|
945 | function TextRenderer() {}
|
946 |
|
947 | // no need for block level renderers
|
948 |
|
949 | TextRenderer.prototype.strong =
|
950 | TextRenderer.prototype.em =
|
951 | TextRenderer.prototype.codespan =
|
952 | TextRenderer.prototype.del =
|
953 | TextRenderer.prototype.text = function (text) {
|
954 | return text;
|
955 | }
|
956 |
|
957 | TextRenderer.prototype.link =
|
958 | TextRenderer.prototype.image = function(href, title, text) {
|
959 | return '' + text;
|
960 | }
|
961 |
|
962 | TextRenderer.prototype.br = function() {
|
963 | return '';
|
964 | }
|
965 |
|
966 | /**
|
967 | * Parsing & Compiling
|
968 | */
|
969 |
|
970 | function Parser(options) {
|
971 | this.tokens = [];
|
972 | this.token = null;
|
973 | this.options = options || marked.defaults;
|
974 | this.options.renderer = this.options.renderer || new Renderer();
|
975 | this.renderer = this.options.renderer;
|
976 | this.renderer.options = this.options;
|
977 | }
|
978 |
|
979 | /**
|
980 | * Static Parse Method
|
981 | */
|
982 |
|
983 | Parser.parse = function(src, options) {
|
984 | var parser = new Parser(options);
|
985 | return parser.parse(src);
|
986 | };
|
987 |
|
988 | /**
|
989 | * Parse Loop
|
990 | */
|
991 |
|
992 | Parser.prototype.parse = function(src) {
|
993 | this.inline = new InlineLexer(src.links, this.options);
|
994 | // use an InlineLexer with a TextRenderer to extract pure text
|
995 | this.inlineText = new InlineLexer(
|
996 | src.links,
|
997 | merge({}, this.options, {renderer: new TextRenderer()})
|
998 | );
|
999 | this.tokens = src.reverse();
|
1000 |
|
1001 | var out = '';
|
1002 | while (this.next()) {
|
1003 | out += this.tok();
|
1004 | }
|
1005 |
|
1006 | return out;
|
1007 | };
|
1008 |
|
1009 | /**
|
1010 | * Next Token
|
1011 | */
|
1012 |
|
1013 | Parser.prototype.next = function() {
|
1014 | return this.token = this.tokens.pop();
|
1015 | };
|
1016 |
|
1017 | /**
|
1018 | * Preview Next Token
|
1019 | */
|
1020 |
|
1021 | Parser.prototype.peek = function() {
|
1022 | return this.tokens[this.tokens.length - 1] || 0;
|
1023 | };
|
1024 |
|
1025 | /**
|
1026 | * Parse Text Tokens
|
1027 | */
|
1028 |
|
1029 | Parser.prototype.parseText = function() {
|
1030 | var body = this.token.text;
|
1031 |
|
1032 | while (this.peek().type === 'text') {
|
1033 | body += '\n' + this.next().text;
|
1034 | }
|
1035 |
|
1036 | return this.inline.output(body);
|
1037 | };
|
1038 |
|
1039 | /**
|
1040 | * Parse Current Token
|
1041 | */
|
1042 |
|
1043 | Parser.prototype.tok = function() {
|
1044 | switch (this.token.type) {
|
1045 | case 'space': {
|
1046 | return '';
|
1047 | }
|
1048 | case 'hr': {
|
1049 | return this.renderer.hr();
|
1050 | }
|
1051 | case 'heading': {
|
1052 | return this.renderer.heading(
|
1053 | this.inline.output(this.token.text),
|
1054 | this.token.depth,
|
1055 | unescape(this.inlineText.output(this.token.text)));
|
1056 | }
|
1057 | case 'code': {
|
1058 | return this.renderer.code(this.token.text,
|
1059 | this.token.lang,
|
1060 | this.token.escaped);
|
1061 | }
|
1062 | case 'table': {
|
1063 | var header = '',
|
1064 | body = '',
|
1065 | i,
|
1066 | row,
|
1067 | cell,
|
1068 | j;
|
1069 |
|
1070 | // header
|
1071 | cell = '';
|
1072 | for (i = 0; i < this.token.header.length; i++) {
|
1073 | cell += this.renderer.tablecell(
|
1074 | this.inline.output(this.token.header[i]),
|
1075 | { header: true, align: this.token.align[i] }
|
1076 | );
|
1077 | }
|
1078 | header += this.renderer.tablerow(cell);
|
1079 |
|
1080 | for (i = 0; i < this.token.cells.length; i++) {
|
1081 | row = this.token.cells[i];
|
1082 |
|
1083 | cell = '';
|
1084 | for (j = 0; j < row.length; j++) {
|
1085 | cell += this.renderer.tablecell(
|
1086 | this.inline.output(row[j]),
|
1087 | { header: false, align: this.token.align[j] }
|
1088 | );
|
1089 | }
|
1090 |
|
1091 | body += this.renderer.tablerow(cell);
|
1092 | }
|
1093 | return this.renderer.table(header, body);
|
1094 | }
|
1095 | case 'blockquote_start': {
|
1096 | body = '';
|
1097 |
|
1098 | while (this.next().type !== 'blockquote_end') {
|
1099 | body += this.tok();
|
1100 | }
|
1101 |
|
1102 | return this.renderer.blockquote(body);
|
1103 | }
|
1104 | case 'list_start': {
|
1105 | body = '';
|
1106 | var ordered = this.token.ordered,
|
1107 | start = this.token.start;
|
1108 |
|
1109 | while (this.next().type !== 'list_end') {
|
1110 | body += this.tok();
|
1111 | }
|
1112 |
|
1113 | return this.renderer.list(body, ordered, start);
|
1114 | }
|
1115 | case 'list_item_start': {
|
1116 | body = '';
|
1117 |
|
1118 | while (this.next().type !== 'list_item_end') {
|
1119 | body += this.token.type === 'text'
|
1120 | ? this.parseText()
|
1121 | : this.tok();
|
1122 | }
|
1123 |
|
1124 | return this.renderer.listitem(body);
|
1125 | }
|
1126 | case 'loose_item_start': {
|
1127 | body = '';
|
1128 |
|
1129 | while (this.next().type !== 'list_item_end') {
|
1130 | body += this.tok();
|
1131 | }
|
1132 |
|
1133 | return this.renderer.listitem(body);
|
1134 | }
|
1135 | case 'html': {
|
1136 | var html = !this.token.pre && !this.options.pedantic
|
1137 | ? this.inline.output(this.token.text)
|
1138 | : this.token.text;
|
1139 | return this.renderer.html(html);
|
1140 | }
|
1141 | case 'paragraph': {
|
1142 | return this.renderer.paragraph(this.inline.output(this.token.text));
|
1143 | }
|
1144 | case 'text': {
|
1145 | return this.renderer.paragraph(this.parseText());
|
1146 | }
|
1147 | }
|
1148 | };
|
1149 |
|
1150 | /**
|
1151 | * Helpers
|
1152 | */
|
1153 |
|
1154 | function escape(html, encode) {
|
1155 | return html
|
1156 | .replace(!encode ? /&(?!#?\w+;)/g : /&/g, '&')
|
1157 | .replace(/</g, '<')
|
1158 | .replace(/>/g, '>')
|
1159 | .replace(/"/g, '"')
|
1160 | .replace(/'/g, ''');
|
1161 | }
|
1162 |
|
1163 | function unescape(html) {
|
1164 | // explicitly match decimal, hex, and named HTML entities
|
1165 | return html.replace(/&(#(?:\d+)|(?:#x[0-9A-Fa-f]+)|(?:\w+));?/ig, function(_, n) {
|
1166 | n = n.toLowerCase();
|
1167 | if (n === 'colon') return ':';
|
1168 | if (n.charAt(0) === '#') {
|
1169 | return n.charAt(1) === 'x'
|
1170 | ? String.fromCharCode(parseInt(n.substring(2), 16))
|
1171 | : String.fromCharCode(+n.substring(1));
|
1172 | }
|
1173 | return '';
|
1174 | });
|
1175 | }
|
1176 |
|
1177 | function edit(regex, opt) {
|
1178 | regex = regex.source;
|
1179 | opt = opt || '';
|
1180 | return {
|
1181 | replace: function(name, val) {
|
1182 | val = val.source || val;
|
1183 | val = val.replace(/(^|[^\[])\^/g, '$1');
|
1184 | regex = regex.replace(name, val);
|
1185 | return this;
|
1186 | },
|
1187 | getRegex: function() {
|
1188 | return new RegExp(regex, opt);
|
1189 | }
|
1190 | };
|
1191 | }
|
1192 |
|
1193 | function resolveUrl(base, href) {
|
1194 | if (!baseUrls[' ' + base]) {
|
1195 | // we can ignore everything in base after the last slash of its path component,
|
1196 | // but we might need to add _that_
|
1197 | // https://tools.ietf.org/html/rfc3986#section-3
|
1198 | if (/^[^:]+:\/*[^/]*$/.test(base)) {
|
1199 | baseUrls[' ' + base] = base + '/';
|
1200 | } else {
|
1201 | baseUrls[' ' + base] = base.replace(/[^/]*$/, '');
|
1202 | }
|
1203 | }
|
1204 | base = baseUrls[' ' + base];
|
1205 |
|
1206 | if (href.slice(0, 2) === '//') {
|
1207 | return base.replace(/:[\s\S]*/, ':') + href;
|
1208 | } else if (href.charAt(0) === '/') {
|
1209 | return base.replace(/(:\/*[^/]*)[\s\S]*/, '$1') + href;
|
1210 | } else {
|
1211 | return base + href;
|
1212 | }
|
1213 | }
|
1214 | var baseUrls = {};
|
1215 | var originIndependentUrl = /^$|^[a-z][a-z0-9+.-]*:|^[?#]/i;
|
1216 |
|
1217 | function noop() {}
|
1218 | noop.exec = noop;
|
1219 |
|
1220 | function merge(obj) {
|
1221 | var i = 1,
|
1222 | target,
|
1223 | key;
|
1224 |
|
1225 | for (; i < arguments.length; i++) {
|
1226 | target = arguments[i];
|
1227 | for (key in target) {
|
1228 | if (Object.prototype.hasOwnProperty.call(target, key)) {
|
1229 | obj[key] = target[key];
|
1230 | }
|
1231 | }
|
1232 | }
|
1233 |
|
1234 | return obj;
|
1235 | }
|
1236 |
|
1237 | /**
|
1238 | * Marked
|
1239 | */
|
1240 |
|
1241 | function marked(src, opt, callback) {
|
1242 | // throw error in case of non string input
|
1243 | if (typeof src === 'undefined' || src === null) {
|
1244 | throw new Error('marked(): input parameter is undefined or null');
|
1245 | }
|
1246 | if (typeof src !== 'string') {
|
1247 | throw new Error('marked(): input parameter is of type '
|
1248 | + Object.prototype.toString.call(src) + ', string expected');
|
1249 | }
|
1250 |
|
1251 | if (callback || typeof opt === 'function') {
|
1252 | if (!callback) {
|
1253 | callback = opt;
|
1254 | opt = null;
|
1255 | }
|
1256 |
|
1257 | opt = merge({}, marked.defaults, opt || {});
|
1258 |
|
1259 | var highlight = opt.highlight,
|
1260 | tokens,
|
1261 | pending,
|
1262 | i = 0;
|
1263 |
|
1264 | try {
|
1265 | tokens = Lexer.lex(src, opt)
|
1266 | } catch (e) {
|
1267 | return callback(e);
|
1268 | }
|
1269 |
|
1270 | pending = tokens.length;
|
1271 |
|
1272 | var done = function(err) {
|
1273 | if (err) {
|
1274 | opt.highlight = highlight;
|
1275 | return callback(err);
|
1276 | }
|
1277 |
|
1278 | var out;
|
1279 |
|
1280 | try {
|
1281 | out = Parser.parse(tokens, opt);
|
1282 | } catch (e) {
|
1283 | err = e;
|
1284 | }
|
1285 |
|
1286 | opt.highlight = highlight;
|
1287 |
|
1288 | return err
|
1289 | ? callback(err)
|
1290 | : callback(null, out);
|
1291 | };
|
1292 |
|
1293 | if (!highlight || highlight.length < 3) {
|
1294 | return done();
|
1295 | }
|
1296 |
|
1297 | delete opt.highlight;
|
1298 |
|
1299 | if (!pending) return done();
|
1300 |
|
1301 | for (; i < tokens.length; i++) {
|
1302 | (function(token) {
|
1303 | if (token.type !== 'code') {
|
1304 | return --pending || done();
|
1305 | }
|
1306 | return highlight(token.text, token.lang, function(err, code) {
|
1307 | if (err) return done(err);
|
1308 | if (code == null || code === token.text) {
|
1309 | return --pending || done();
|
1310 | }
|
1311 | token.text = code;
|
1312 | token.escaped = true;
|
1313 | --pending || done();
|
1314 | });
|
1315 | })(tokens[i]);
|
1316 | }
|
1317 |
|
1318 | return;
|
1319 | }
|
1320 | try {
|
1321 | if (opt) opt = merge({}, marked.defaults, opt);
|
1322 | return Parser.parse(Lexer.lex(src, opt), opt);
|
1323 | } catch (e) {
|
1324 | e.message += '\nPlease report this to https://github.com/markedjs/marked.';
|
1325 | if ((opt || marked.defaults).silent) {
|
1326 | return '<p>An error occurred:</p><pre>'
|
1327 | + escape(e.message + '', true)
|
1328 | + '</pre>';
|
1329 | }
|
1330 | throw e;
|
1331 | }
|
1332 | }
|
1333 |
|
1334 | /**
|
1335 | * Options
|
1336 | */
|
1337 |
|
1338 | marked.options =
|
1339 | marked.setOptions = function(opt) {
|
1340 | merge(marked.defaults, opt);
|
1341 | return marked;
|
1342 | };
|
1343 |
|
1344 | marked.defaults = {
|
1345 | gfm: true,
|
1346 | tables: true,
|
1347 | breaks: false,
|
1348 | pedantic: false,
|
1349 | sanitize: false,
|
1350 | sanitizer: null,
|
1351 | mangle: true,
|
1352 | smartLists: false,
|
1353 | silent: false,
|
1354 | highlight: null,
|
1355 | langPrefix: 'lang-',
|
1356 | smartypants: false,
|
1357 | headerPrefix: '',
|
1358 | renderer: new Renderer(),
|
1359 | xhtml: false,
|
1360 | baseUrl: null
|
1361 | };
|
1362 |
|
1363 | /**
|
1364 | * Expose
|
1365 | */
|
1366 |
|
1367 | marked.Parser = Parser;
|
1368 | marked.parser = Parser.parse;
|
1369 |
|
1370 | marked.Renderer = Renderer;
|
1371 | marked.TextRenderer = TextRenderer;
|
1372 |
|
1373 | marked.Lexer = Lexer;
|
1374 | marked.lexer = Lexer.lex;
|
1375 |
|
1376 | marked.InlineLexer = InlineLexer;
|
1377 | marked.inlineLexer = InlineLexer.output;
|
1378 |
|
1379 | marked.parse = marked;
|
1380 |
|
1381 | if (typeof module !== 'undefined' && typeof exports === 'object') {
|
1382 | module.exports = marked;
|
1383 | } else if (typeof define === 'function' && define.amd) {
|
1384 | define(function() { return marked; });
|
1385 | } else {
|
1386 | root.marked = marked;
|
1387 | }
|
1388 | })(this || (typeof window !== 'undefined' ? window : global));
|