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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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* @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\OpenRule; |
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use Kadet\Highlighter\Parser\Rule; |
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use Kadet\Highlighter\Parser\Token\ContextualToken; |
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use Kadet\Highlighter\Parser\Token\MetaToken; |
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use Kadet\Highlighter\Parser\TokenFactory; |
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use Kadet\Highlighter\Parser\Validator\Validator; |
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/** |
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* Class JavaScriptLanguage |
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* |
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* @package Kadet\Highlighter\Language |
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* |
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* @property bool $variables |
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*/ |
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class JavaScript extends GreedyLanguage |
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{ |
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protected $_options = [ |
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'variables' => false, |
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]; |
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private const IDENTIFIER = '[\p{L}\p{Nl}$_][\p{L}\p{Nl}$\p{Mn}\p{Mc}\p{Nd}\p{Pc}]*'; |
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/** |
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* Tokenization rules |
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*/ |
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2 |
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public function setupRules() |
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{ |
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// we need to allow all the tokens in json |
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$this->rules->validator = new Validator(['*none', '*meta.json', '!comment']); |
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$this->rules->addMany([ |
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'string' => CommonFeatures::strings(['single' => '\'', 'double' => '"'], [ |
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'context' => ['!operator.escape', '!comment', '!string'], |
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]), |
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'symbol.function' => new Rule(new RegexMatcher('/function\s+([a-z_]\w+)\s*\(/i')), |
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'operator.escape' => new Rule(new RegexMatcher('/(\\\(?:x[0-9a-fA-F]{1,2}|u\{[0-9a-fA-F]{1,6}\}|[0-7]{1,3}|.))/i'), [ |
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'context' => ['string'] |
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]), |
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'comment' => new Rule(new CommentMatcher(['//'], [['/*', '*/']]), ['priority' => 3]), |
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'call' => new Rule(new RegexMatcher('/(' . self::IDENTIFIER . ')\s*\(/iu'), ['priority' => -1]), |
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'keyword' => new Rule(new WordMatcher([ |
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'do', 'if', 'in', 'for', 'let', 'new', 'try', 'var', 'case', 'else', 'enum', 'eval', |
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'void', 'with', 'break', 'catch', 'class', 'const', 'super', 'throw', |
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'while', 'yield', 'delete', 'export', 'import', 'public', 'return', 'static', 'switch', |
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'typeof', 'default', 'extends', 'finally', 'package', 'private', 'continue', 'debugger', |
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'function', 'arguments', 'interface', 'protected', 'implements', 'instanceof', 'get', 'set', 'from' |
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]), ['context' => ['!string', '!comment', '!symbol', '!call']]), |
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'constant.special' => new Rule(new WordMatcher(['null', 'true', 'false'])), |
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'variable.special' => new Rule(new SubStringMatcher('this')), |
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'number' => new Rule(new RegexMatcher('/\b(-?(?:0[0-7]+|0[xX][0-9a-fA-F]+|0b[01]+|\d+))\b/')), |
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'operator.punctuation' => new Rule(new WordMatcher([',', ';'], ['separated' => false]), ['priority' => 0]), |
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'operator' => new Rule(new RegexMatcher('/(=>|\+{1,2}|-{1,2}|={1,3}|\|{1,2}|&{1,2})/'), ['priority' => 0]), |
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'string.regex' => [ |
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new OpenRule(new RegexMatcher('#(?>[\[=(?:+,!]|^|return|=>|&&|\|\|)\s*(/).*?/#m'), [ |
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'context' => ['!comment', '!string'] |
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]), |
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new Rule(new RegexMatcher('#\/.*(/[gimuy]{0,5})#m'), [ |
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'priority' => 1, |
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'factory' => new TokenFactory(ContextualToken::class), |
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'context' => ['!operator.escape', 'string.regex'] |
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]) |
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], |
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'variable' => new Rule(new RegexMatcher('/\b(?<!\.)(' . self::IDENTIFIER . ':?)/iu'), [ |
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'priority' => -1, |
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'enabled' => $this->variables |
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]), |
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'variable.property' => [ |
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new Rule(new RegexMatcher('/(?=[\w)\]]\s*\.([a-z_]\w*))/i'), [ |
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'priority' => -2 |
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]), |
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new Rule(new RegexMatcher('/(\w+)\s*:/si'), [ |
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'context' => ['meta.json', '!comment', '!string'] |
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]), |
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], |
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'meta.json' => new Rule(new RegexMatcher('/(?<=[=(,])\s*(\{(?>[^{}]|(?1))+\})/m'), [ |
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'factory' => new TokenFactory(MetaToken::class) |
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]) |
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]); |
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} |
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public function getIdentifier() |
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{ |
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return 'javascript'; |
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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' => ['js', 'jscript', 'javascript'], |
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'mime' => ['application/javascript', 'application/x-javascript', 'text/x-javascript', 'text/javascript', 'application/json'], |
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'extension' => ['*.js', '*.jsx'], |
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]; |
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} |
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} |
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kadet1090 /
KeyLighter
