/** * In CSS content, prepend a path to relative URIs * * @param string $css * * @param string $path The path to prepend. * * @return string */ public static function prepend($css, $path) { self::$_prependPath = $path; $css = self::_trimUrls($css); // append $css = preg_replace_callback('/@import\\s+([\'"])(.*?)[\'"]/', array(self::$className, '_processUriCB'), $css); $css = preg_replace_callback('/url\\(\\s*([^\\)\\s]+)\\s*\\)/', array(self::$className, '_processUriCB'), $css); self::$_prependPath = null; return $css; }
/** * Minify a CSS string * * @param string $css * * @param array $options available options: * * 'preserveComments': (default true) multi-line comments that begin * with "/*!" will be preserved with newlines before and after to * enhance readability. * * 'removeCharsets': (default true) remove all @charset at-rules * * 'prependRelativePath': (default null) if given, this string will be * prepended to all relative URIs in import/url declarations * * 'currentDir': (default null) if given, this is assumed to be the * directory of the current CSS file. Using this, minify will rewrite * all relative URIs in import/url declarations to correctly point to * the desired files. For this to work, the files *must* exist and be * visible by the PHP process. * * 'symlinks': (default = array()) If the CSS file is stored in * a symlink-ed directory, provide an array of link paths to * target paths, where the link paths are within the document root. Because * paths need to be normalized for this to work, use "//" to substitute * the doc root in the link paths (the array keys). E.g.: * <code> * array('//symlink' => '/real/target/path') // unix * array('//static' => 'D:\\staticStorage') // Windows * </code> * * 'docRoot': (default = $_SERVER['DOCUMENT_ROOT']) * see CssUriRewriter::rewrite * * @return string */ public static function minify($css, $options = array()) { $options = array_merge(array('removeCharsets' => true, 'preserveComments' => true, 'currentDir' => null, 'docRoot' => $_SERVER['DOCUMENT_ROOT'], 'prependRelativePath' => null, 'symlinks' => array()), $options); if ($options['removeCharsets']) { $css = preg_replace('/@charset[^;]+;\\s*/', '', $css); } if (!$options['preserveComments']) { $css = CssCompressor::process($css, $options); } else { $css = CommentPreserver::process($css, array('CssCompressor', 'process'), array($options)); } if (!$options['currentDir'] && !$options['prependRelativePath']) { return $css; } if ($options['currentDir']) { return CssUriRewriter::rewrite($css, $options['currentDir'], $options['docRoot'], $options['symlinks']); } else { return CssUriRewriter::prepend($css, $options['prependRelativePath']); } }