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9 | function latex(hljs) {
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10 | const regex = hljs.regex;
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11 | const KNOWN_CONTROL_WORDS = regex.either(...[
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12 | '(?:NeedsTeXFormat|RequirePackage|GetIdInfo)',
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13 | 'Provides(?:Expl)?(?:Package|Class|File)',
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14 | '(?:DeclareOption|ProcessOptions)',
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15 | '(?:documentclass|usepackage|input|include)',
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16 | 'makeat(?:letter|other)',
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17 | 'ExplSyntax(?:On|Off)',
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18 | '(?:new|renew|provide)?command',
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19 | '(?:re)newenvironment',
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20 | '(?:New|Renew|Provide|Declare)(?:Expandable)?DocumentCommand',
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21 | '(?:New|Renew|Provide|Declare)DocumentEnvironment',
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22 | '(?:(?:e|g|x)?def|let)',
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23 | '(?:begin|end)',
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24 | '(?:part|chapter|(?:sub){0,2}section|(?:sub)?paragraph)',
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25 | 'caption',
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26 | '(?:label|(?:eq|page|name)?ref|(?:paren|foot|super)?cite)',
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27 | '(?:alpha|beta|[Gg]amma|[Dd]elta|(?:var)?epsilon|zeta|eta|[Tt]heta|vartheta)',
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28 | '(?:iota|(?:var)?kappa|[Ll]ambda|mu|nu|[Xx]i|[Pp]i|varpi|(?:var)rho)',
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29 | '(?:[Ss]igma|varsigma|tau|[Uu]psilon|[Pp]hi|varphi|chi|[Pp]si|[Oo]mega)',
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30 | '(?:frac|sum|prod|lim|infty|times|sqrt|leq|geq|left|right|middle|[bB]igg?)',
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31 | '(?:[lr]angle|q?quad|[lcvdi]?dots|d?dot|hat|tilde|bar)'
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32 | ].map(word => word + '(?![a-zA-Z@:_])'));
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33 | const L3_REGEX = new RegExp([
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34 |
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35 |
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36 |
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37 | '(?:__)?[a-zA-Z]{2,}_[a-zA-Z](?:_?[a-zA-Z])+:[a-zA-Z]*',
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38 |
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39 |
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40 |
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41 | '[lgc]__?[a-zA-Z](?:_?[a-zA-Z])*_[a-zA-Z]{2,}',
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42 |
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43 |
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44 |
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45 |
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46 | '[qs]__?[a-zA-Z](?:_?[a-zA-Z])+',
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47 |
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48 | 'use(?:_i)?:[a-zA-Z]*',
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49 | '(?:else|fi|or):',
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50 | '(?:if|cs|exp):w',
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51 | '(?:hbox|vbox):n',
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52 | '::[a-zA-Z]_unbraced',
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53 | '::[a-zA-Z:]'
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54 | ].map(pattern => pattern + '(?![a-zA-Z:_])').join('|'));
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55 | const L2_VARIANTS = [
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56 | {begin: /[a-zA-Z@]+/},
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57 | {begin: /[^a-zA-Z@]?/}
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58 | ];
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59 | const DOUBLE_CARET_VARIANTS = [
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60 | {begin: /\^{6}[0-9a-f]{6}/},
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61 | {begin: /\^{5}[0-9a-f]{5}/},
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62 | {begin: /\^{4}[0-9a-f]{4}/},
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63 | {begin: /\^{3}[0-9a-f]{3}/},
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64 | {begin: /\^{2}[0-9a-f]{2}/},
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65 | {begin: /\^{2}[\u0000-\u007f]/}
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66 | ];
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67 | const CONTROL_SEQUENCE = {
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68 | className: 'keyword',
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69 | begin: /\\/,
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70 | relevance: 0,
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71 | contains: [
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72 | {
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73 | endsParent: true,
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74 | begin: KNOWN_CONTROL_WORDS
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75 | },
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76 | {
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77 | endsParent: true,
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78 | begin: L3_REGEX
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79 | },
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80 | {
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81 | endsParent: true,
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82 | variants: DOUBLE_CARET_VARIANTS
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83 | },
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84 | {
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85 | endsParent: true,
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86 | relevance: 0,
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87 | variants: L2_VARIANTS
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88 | }
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89 | ]
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90 | };
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91 | const MACRO_PARAM = {
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92 | className: 'params',
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93 | relevance: 0,
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94 | begin: /#+\d?/
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95 | };
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96 | const DOUBLE_CARET_CHAR = {
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97 |
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98 | variants: DOUBLE_CARET_VARIANTS
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99 | };
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100 | const SPECIAL_CATCODE = {
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101 | className: 'built_in',
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102 | relevance: 0,
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103 | begin: /[$&^_]/
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104 | };
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105 | const MAGIC_COMMENT = {
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106 | className: 'meta',
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107 | begin: /% ?!(T[eE]X|tex|BIB|bib)/,
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108 | end: '$',
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109 | relevance: 10
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110 | };
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111 | const COMMENT = hljs.COMMENT(
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112 | '%',
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113 | '$',
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114 | {
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115 | relevance: 0
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116 | }
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117 | );
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118 | const EVERYTHING_BUT_VERBATIM = [
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119 | CONTROL_SEQUENCE,
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120 | MACRO_PARAM,
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121 | DOUBLE_CARET_CHAR,
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122 | SPECIAL_CATCODE,
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123 | MAGIC_COMMENT,
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124 | COMMENT
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125 | ];
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126 | const BRACE_GROUP_NO_VERBATIM = {
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127 | begin: /\{/, end: /\}/,
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128 | relevance: 0,
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129 | contains: ['self', ...EVERYTHING_BUT_VERBATIM]
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130 | };
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131 | const ARGUMENT_BRACES = hljs.inherit(
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132 | BRACE_GROUP_NO_VERBATIM,
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133 | {
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134 | relevance: 0,
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135 | endsParent: true,
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136 | contains: [BRACE_GROUP_NO_VERBATIM, ...EVERYTHING_BUT_VERBATIM]
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137 | }
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138 | );
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139 | const ARGUMENT_BRACKETS = {
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140 | begin: /\[/,
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141 | end: /\]/,
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142 | endsParent: true,
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143 | relevance: 0,
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144 | contains: [BRACE_GROUP_NO_VERBATIM, ...EVERYTHING_BUT_VERBATIM]
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145 | };
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146 | const SPACE_GOBBLER = {
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147 | begin: /\s+/,
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148 | relevance: 0
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149 | };
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150 | const ARGUMENT_M = [ARGUMENT_BRACES];
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151 | const ARGUMENT_O = [ARGUMENT_BRACKETS];
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152 | const ARGUMENT_AND_THEN = function(arg, starts_mode) {
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153 | return {
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154 | contains: [SPACE_GOBBLER],
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155 | starts: {
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156 | relevance: 0,
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157 | contains: arg,
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158 | starts: starts_mode
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159 | }
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160 | };
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161 | };
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162 | const CSNAME = function(csname, starts_mode) {
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163 | return {
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164 | begin: '\\\\' + csname + '(?![a-zA-Z@:_])',
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165 | keywords: {$pattern: /\\[a-zA-Z]+/, keyword: '\\' + csname},
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166 | relevance: 0,
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167 | contains: [SPACE_GOBBLER],
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168 | starts: starts_mode
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169 | };
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170 | };
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171 | const BEGIN_ENV = function(envname, starts_mode) {
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172 | return hljs.inherit(
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173 | {
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174 | begin: '\\\\begin(?=[ \t]*(\\r?\\n[ \t]*)?\\{' + envname + '\\})',
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175 | keywords: {$pattern: /\\[a-zA-Z]+/, keyword: '\\begin'},
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176 | relevance: 0,
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177 | },
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178 | ARGUMENT_AND_THEN(ARGUMENT_M, starts_mode)
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179 | );
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180 | };
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181 | const VERBATIM_DELIMITED_EQUAL = (innerName = "string") => {
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182 | return hljs.END_SAME_AS_BEGIN({
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183 | className: innerName,
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184 | begin: /(.|\r?\n)/,
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185 | end: /(.|\r?\n)/,
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186 | excludeBegin: true,
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187 | excludeEnd: true,
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188 | endsParent: true
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189 | });
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190 | };
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191 | const VERBATIM_DELIMITED_ENV = function(envname) {
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192 | return {
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193 | className: 'string',
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194 | end: '(?=\\\\end\\{' + envname + '\\})'
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195 | };
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196 | };
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197 |
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198 | const VERBATIM_DELIMITED_BRACES = (innerName = "string") => {
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199 | return {
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200 | relevance: 0,
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201 | begin: /\{/,
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202 | starts: {
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203 | endsParent: true,
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204 | contains: [
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205 | {
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206 | className: innerName,
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207 | end: /(?=\})/,
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208 | endsParent:true,
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209 | contains: [
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210 | {
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211 | begin: /\{/,
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212 | end: /\}/,
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213 | relevance: 0,
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214 | contains: ["self"]
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215 | }
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216 | ],
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217 | }
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218 | ]
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219 | }
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220 | };
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221 | };
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222 | const VERBATIM = [
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223 | ...['verb', 'lstinline'].map(csname => CSNAME(csname, {contains: [VERBATIM_DELIMITED_EQUAL()]})),
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224 | CSNAME('mint', ARGUMENT_AND_THEN(ARGUMENT_M, {contains: [VERBATIM_DELIMITED_EQUAL()]})),
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225 | CSNAME('mintinline', ARGUMENT_AND_THEN(ARGUMENT_M, {contains: [VERBATIM_DELIMITED_BRACES(), VERBATIM_DELIMITED_EQUAL()]})),
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226 | CSNAME('url', {contains: [VERBATIM_DELIMITED_BRACES("link"), VERBATIM_DELIMITED_BRACES("link")]}),
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227 | CSNAME('hyperref', {contains: [VERBATIM_DELIMITED_BRACES("link")]}),
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228 | CSNAME('href', ARGUMENT_AND_THEN(ARGUMENT_O, {contains: [VERBATIM_DELIMITED_BRACES("link")]})),
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229 | ...[].concat(...['', '\\*'].map(suffix => [
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230 | BEGIN_ENV('verbatim' + suffix, VERBATIM_DELIMITED_ENV('verbatim' + suffix)),
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231 | BEGIN_ENV('filecontents' + suffix, ARGUMENT_AND_THEN(ARGUMENT_M, VERBATIM_DELIMITED_ENV('filecontents' + suffix))),
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232 | ...['', 'B', 'L'].map(prefix =>
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233 | BEGIN_ENV(prefix + 'Verbatim' + suffix, ARGUMENT_AND_THEN(ARGUMENT_O, VERBATIM_DELIMITED_ENV(prefix + 'Verbatim' + suffix)))
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234 | )
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235 | ])),
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236 | BEGIN_ENV('minted', ARGUMENT_AND_THEN(ARGUMENT_O, ARGUMENT_AND_THEN(ARGUMENT_M, VERBATIM_DELIMITED_ENV('minted')))),
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237 | ];
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238 |
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239 | return {
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240 | name: 'LaTeX',
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241 | aliases: ['tex'],
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242 | contains: [
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243 | ...VERBATIM,
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244 | ...EVERYTHING_BUT_VERBATIM
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245 | ]
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246 | };
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247 | }
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248 |
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249 | export { latex as default };
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