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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\SubStringMatcher; |
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use Kadet\Highlighter\Matcher\WordMatcher; |
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use Kadet\Highlighter\Parser\CloseRule; |
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use Kadet\Highlighter\Parser\OpenRule; |
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use Kadet\Highlighter\Parser\Rule; |
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use Kadet\Highlighter\Parser\Token\MetaToken; |
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use Kadet\Highlighter\Parser\Token\Token; |
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use Kadet\Highlighter\Parser\TokenFactory; |
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use Kadet\Highlighter\Parser\Validator\Validator; |
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class Css extends GreedyLanguage |
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{ |
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/** |
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* Tokenization rules |
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*/ |
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public function setupRules() |
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{ |
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$identifier = '-?[_a-zA-Z]+[_a-zA-Z0-9-]*'; |
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$at = [ |
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'charset', 'import', 'namespace', |
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'media', 'supports', 'document', 'page', 'font-face', 'keyframes', 'viewport', 'counter-style', |
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'font-feature-values', 'swash', 'ornaments', 'annotation', 'stylistic', 'styleset', 'character-variant' |
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]; |
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$this->rules->addMany([ |
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'string' => CommonFeatures::strings(['single' => '\'', 'double' => '"'], [ |
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'context' => $this->everywhere() |
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]), |
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'meta.declaration' => [ |
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new OpenRule(new SubStringMatcher('{'), [ |
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'context' => ['!meta.declaration.media', '!comment'], |
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'factory' => new TokenFactory(MetaToken::class) |
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]), |
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new CloseRule(new SubStringMatcher('}')), |
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], |
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'meta.declaration.media' => [ |
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new Rule(new RegexMatcher('/@media(.*?\{)/'), [ |
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'context' => Validator::everywhere(), |
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'factory' => new TokenFactory(MetaToken::class) |
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]), |
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], |
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'meta.declaration.rule' => [ |
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new OpenRule(new RegexMatcher('/@media.*(\()/'), [ |
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'context' => ['meta.declaration.media'], |
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'factory' => new TokenFactory(MetaToken::class) |
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]), |
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new CloseRule(new SubStringMatcher(')')), |
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], |
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'keyword.at-rule' => new Rule(new RegexMatcher('/(@(?:-[a-z]+-)?(?:'.implode('|', $at).'))/'), [ |
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'priority' => 2 |
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]), |
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'symbol.selector.id' => new Rule(new RegexMatcher("/(#$identifier)/i")), |
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'symbol.selector.tag' => new Rule(new RegexMatcher('/(?>[\s}]|^)(?=(\w+)[^;]*\{)/ms')), |
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'symbol.selector.class' => new Rule(new RegexMatcher("/(\\.$identifier)/i")), |
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'symbol.selector.class.pseudo' => new Rule(new RegexMatcher("/(:{1,2}$identifier)/")), |
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'number' => new Rule(new RegexMatcher("/([-+]?[0-9]*\\.?[0-9]+([\\w%]+)?)/"), [ |
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'context' => ['meta.declaration', '!constant.color', '!comment', '!symbol', '!comment', '!string'], |
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'priority' => 0 |
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]), |
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'symbol.property' => new Rule(new RegexMatcher("/($identifier:)/"), [ |
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'context' => ['meta.declaration', '!symbol', '!comment'], |
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'priority' => 2 |
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]), |
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'call' => new Rule(new RegexMatcher("/($identifier)\\s*\\((?:(?P<string>[a-z].*?)|.*?)\\)/", [ |
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1 => Token::NAME, |
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'string' => 'string.argument' |
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]), [ |
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'context' => ['meta.declaration', '!comment', '!string', '!keyword'] |
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]), |
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'constant.color' => [ |
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new Rule(new RegexMatcher("/(#[0-9a-f]{3,6})/i"), [ |
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'priority' => 2, |
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'context' => ['meta.declaration', '!comment'] |
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]), |
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new Rule(new WordMatcher([ |
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'white', 'silver', 'gray', 'black', 'red', 'maroon', 'yellow', 'olive', |
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'lime', 'green', 'aqua', 'teal', 'blue', 'navy', 'fuchsia', 'purple' |
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]), [ |
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'context' => ['meta.declaration', '!comment', '!symbol', '!variable'] |
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]), |
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], |
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'operator' => new Rule(new WordMatcher(['>', '+', '*', '!important'], ['separated' => false]), [ |
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'context' => $this->everywhere() |
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]), |
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'operator.punctuation' => new Rule(new SubStringMatcher(';'), [ |
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'context' => $this->everywhere() |
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]), |
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'comment' => new Rule(new CommentMatcher([], [['/*', '*/']]), ['context' => $this->everywhere()]) |
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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 'css'; |
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} |
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protected function everywhere() { |
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static $validator; |
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if (!$validator) { |
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$validator = new Validator(['!string', '!comment']); |
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} |
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return $validator; |
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} |
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View Code Duplication |
public static function getMetadata() |
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{ |
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return [ |
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'name' => ['css'], |
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'mime' => ['text/css'], |
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'extension' => ['*.css'] |
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]; |
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} |
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} |
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kadet1090 /
KeyLighter
