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bower_components/prism/components/prism-php.js 3.23 KB
73bcce88   luigser   COMPONENTS
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  /**
   * Original by Aaron Harun: http://aahacreative.com/2012/07/31/php-syntax-highlighting-prism/
   * Modified by Miles Johnson: http://milesj.me
   *
   * Supports the following:
   * 		- Extends clike syntax
   * 		- Support for PHP 5.3+ (namespaces, traits, generators, etc)
   * 		- Smarter constant and function matching
   *
   * Adds the following new token classes:
   * 		constant, delimiter, variable, function, package
   */
  
  Prism.languages.php = Prism.languages.extend('clike', {
  	'keyword': /\b(and|or|xor|array|as|break|case|cfunction|class|const|continue|declare|default|die|do|else|elseif|enddeclare|endfor|endforeach|endif|endswitch|endwhile|extends|for|foreach|function|include|include_once|global|if|new|return|static|switch|use|require|require_once|var|while|abstract|interface|public|implements|private|protected|parent|throw|null|echo|print|trait|namespace|final|yield|goto|instanceof|finally|try|catch)\b/i,
  	'constant': /\b[A-Z0-9_]{2,}\b/,
  	'comment': {
  		pattern: /(^|[^\\])(\/\*[\w\W]*?\*\/|(^|[^:])(\/\/).*?(\r?\n|$))/,
  		lookbehind: true
  	}
  });
  
  // Shell-like comments are matched after strings, because they are less
  // common than strings containing hashes...
  Prism.languages.insertBefore('php', 'class-name', {
  	'shell-comment': {
  		pattern: /(^|[^\\])#.*?(\r?\n|$)/,
  		lookbehind: true,
  		alias: 'comment'
  	}
  });
  
  Prism.languages.insertBefore('php', 'keyword', {
  	'delimiter': /(\?>|<\?php|<\?)/i,
  	'variable': /(\$\w+)\b/i,
  	'package': {
  		pattern: /(\\|namespace\s+|use\s+)[\w\\]+/,
  		lookbehind: true,
  		inside: {
  			punctuation: /\\/
  		}
  	}
  });
  
  // Must be defined after the function pattern
  Prism.languages.insertBefore('php', 'operator', {
  	'property': {
  		pattern: /(->)[\w]+/,
  		lookbehind: true
  	}
  });
  
  // Add HTML support of the markup language exists
  if (Prism.languages.markup) {
  
  	// Tokenize all inline PHP blocks that are wrapped in <?php ?>
  	// This allows for easy PHP + markup highlighting
  	Prism.hooks.add('before-highlight', function(env) {
  		if (env.language !== 'php') {
  			return;
  		}
  
  		env.tokenStack = [];
  
  		env.backupCode = env.code;
  		env.code = env.code.replace(/(?:<\?php|<\?)[\w\W]*?(?:\?>)/ig, function(match) {
  			env.tokenStack.push(match);
  
  			return '{{{PHP' + env.tokenStack.length + '}}}';
  		});
  	});
  
  	// Restore env.code for other plugins (e.g. line-numbers)
  	Prism.hooks.add('before-insert', function(env) {
  		if (env.language === 'php') {
  			env.code = env.backupCode;
  			delete env.backupCode;
  		}
  	});
  
  	// Re-insert the tokens after highlighting
  	Prism.hooks.add('after-highlight', function(env) {
  		if (env.language !== 'php') {
  			return;
  		}
  
  		for (var i = 0, t; t = env.tokenStack[i]; i++) {
  			env.highlightedCode = env.highlightedCode.replace('{{{PHP' + (i + 1) + '}}}', Prism.highlight(t, env.grammar, 'php'));
  		}
  
  		env.element.innerHTML = env.highlightedCode;
  	});
  
  	// Wrap tokens in classes that are missing them
  	Prism.hooks.add('wrap', function(env) {
  		if (env.language === 'php' && env.type === 'markup') {
  			env.content = env.content.replace(/(\{\{\{PHP[0-9]+\}\}\})/g, "<span class=\"token php\">$1</span>");
  		}
  	});
  
  	// Add the rules before all others
  	Prism.languages.insertBefore('php', 'comment', {
  		'markup': {
  			pattern: /<[^?]\/?(.*?)>/,
  			inside: Prism.languages.markup
  		},
  		'php': /\{\{\{PHP[0-9]+\}\}\}/
  	});
  }