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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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class Go extends GreedyLanguage |
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{ |
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/** |
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* Tokenization rules setup |
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*/ |
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public function setupRules() |
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{ |
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$identifier = '[\p{L}\p{Nl}$_][\p{L}\p{Nl}$\p{Mn}\p{Mc}\p{Nd}\p{Pc}]*'; |
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$this->rules->addMany([ |
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'comment' => new Rule(new CommentMatcher(['//'], [['/*', '*/']])), |
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'keyword' => new Rule(new WordMatcher([ |
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'break', 'default', 'func', 'interface', 'select', 'case', 'defer', 'go', 'map', 'struct', 'chan', |
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'else', 'goto', 'package', 'switch', 'const', 'fallthrough', 'if', 'range', 'type', 'continue', 'for', |
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'import', 'return', 'var', |
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])), |
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'number' => [ |
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'integer' => new Rule(new RegexMatcher('/\b([1-9]\d*|0x\x+|[0-7]+)\b/si')), |
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'float' => new Rule(new RegexMatcher('/\v((?:\d+\.\d*(?P<exponent>e[+-]?\d+)?|\.\d+(?&exponent)?|\d+(?&exponent))i?)\b/si')), |
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], |
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'string' => [ |
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'rune' => new Rule(new RegexMatcher('/(\'(?:\\\(?:[abfnrtv\\\'"]|[0-7]{3}|x\x{2})|u\x{4}|U\x{8})\')/si')), |
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CommonFeatures::strings(['single' => '`', 'double' => '"']), |
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], |
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'constant.special' => new Rule(new WordMatcher(['true', 'false', 'iota'])), |
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'type' => new Rule(new RegexMatcher('/((?:\*\s*)?(?:u?int(?:8|16|32|64|ptr)?|float(?:32|64)|complex(?:64|128)|byte|rune|string|error))/')), |
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'symbol' => [ |
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'function' => new Rule(new RegexMatcher("/func\\s*($identifier)/")), |
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'struct' => new Rule(new RegexMatcher("/type\\s*($identifier)\\s*struct/")), |
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'interface' => new Rule(new RegexMatcher("/type\\s*($identifier)\\s*interface/")), |
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], |
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'call' => new Rule(new RegexMatcher("/($identifier)\\s*\\(/i"), ['priority' => -1]), |
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'operator' => [ |
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new Rule(new RegexMatcher('~((?>&{2}|<-|[+-]{2}|\|\||[+&=!/:%*^-|]?=|<{1,2}=?|>{1,2}=?|&^=?))~si')), |
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'punctuation' => new Rule(new RegexMatcher('/([;,]|\.\.\.)/')), |
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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 'go'; |
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} |
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public static function getMetadata() |
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{ |
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return [ |
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'name' => ['go', 'golang'], |
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'mime' => ['text/x-go', 'application/x-go', 'text/x-golang', 'application/x-golang'], |
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'extension' => ['*.go'] |
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]; |
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} |
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} |
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