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<?php |
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/** |
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* Highlighter |
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* |
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* Copyright (C) 2016, Some right reserved. |
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* |
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* @author Kacper "Kadet" Donat <[email protected]> |
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* |
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* Contact with author: |
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* Xmpp: [email protected] |
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* E-mail: [email protected] |
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* |
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* From Kadet with love. |
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*/ |
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namespace Kadet\Highlighter\Language; |
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use Kadet\Highlighter\Matcher\CommentMatcher; |
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use Kadet\Highlighter\Matcher\RegexMatcher; |
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use Kadet\Highlighter\Matcher\WordMatcher; |
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use Kadet\Highlighter\Parser\Rule; |
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use Kadet\Highlighter\Parser\Token; |
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class Latex extends Language |
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{ |
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protected static $mathEnvironments = ['align', 'equation', 'math']; |
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/** |
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* Tokenization rules definition |
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* |
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* @return array |
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*/ |
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public function getRules() |
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{ |
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return [ |
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'call.symbol' => new Rule(new RegexMatcher('/(\\\[a-z]+)/si'), ['context' => ['!!'], 'priority' => -1]), |
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'string.math' => [ |
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new Rule(new RegexMatcher('/((\${1,2}).*?\2)/s')), |
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new Rule(new RegexMatcher('/(\\\\\(.*?\\\\\))/s')), |
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new Rule(new RegexMatcher('/(\\\\\[.*?\\\\\])/s')), |
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new Rule( |
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new RegexMatcher( |
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'/\\\begin{((?:' . implode('|', self::$mathEnvironments) . ')\*?)}(.*?)\\\end{\1}/s', |
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[2 => Token::NAME] |
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) |
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), |
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], |
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'symbol.argument' => new Rule(new RegexMatcher('/\[(.*?)\]/')), |
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'symbol.environment' => new Rule(new RegexMatcher('/\\\(?:begin|end){(.*?)}/')), |
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'symbol.label' => new Rule(new RegexMatcher('/\\\(?:label|ref){(.*?)}/')), |
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'operator' => [ |
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new Rule(new WordMatcher(['*', '&', '\\\\'], ['separated' => false]), ['context' => ['!!']]), |
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new Rule(new WordMatcher(['=', '-', '+', '/', '^', '_'], ['separated' => false]), [ |
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'context' => ['string.math'], |
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'priority' => -1 |
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]), |
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], |
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'comment' => new Rule(new CommentMatcher(['%'], [])), |
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'format.bold' => new Rule(new RegexMatcher('/\\\textbf({((?>[^{}]+|(?1))+)})/si', [ |
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2 => Token::NAME |
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])), |
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'format.italics' => new Rule(new RegexMatcher('/\\\textit({((?>[^{}]+|(?1))+)})/si', [ |
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2 => Token::NAME |
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])), |
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# math mode |
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'number' => new Rule(new RegexMatcher('/(-?(?:0[0-7]+|0[xX][0-9a-fA-F]+|0b[01]+|[\d,]+))/'), [ |
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'context' => ['string.math'], |
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'priority' => -2 |
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]), |
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]; |
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} |
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/** |
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* Unique language identifier, for example 'php' |
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* |
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* @return string |
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*/ |
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public function getIdentifier() |
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{ |
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return 'latex'; |
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} |
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} |
kadet1090 /
KeyLighter
