Edit file File name : CommentPreserver.php Content :<?php /** * Class Minify_CommentPreserver * @package Minify */ /** * Process a string in pieces preserving C-style comments that begin with "/*!" * * @package Minify * @author Stephen Clay <steve@mrclay.org> */ class Minify_CommentPreserver { /** * String to be prepended to each preserved comment * * @var string */ public static $prepend = "\n"; /** * String to be appended to each preserved comment * * @var string */ public static $append = "\n"; /** * Process a string outside of C-style comments that begin with "/*!" * * On each non-empty string outside these comments, the given processor * function will be called. The comments will be surrounded by * Minify_CommentPreserver::$preprend and Minify_CommentPreserver::$append. * * @param string $content * @param callback $processor function * @param array $args array of extra arguments to pass to the processor * function (default = array()) * @return string */ public static function process($content, $processor, $args = array()) { $ret = ''; while (true) { list($beforeComment, $comment, $afterComment) = self::_nextComment($content); if ('' !== $beforeComment) { $callArgs = $args; array_unshift($callArgs, $beforeComment); $ret .= call_user_func_array($processor, $callArgs); } if (false === $comment) { break; } $ret .= $comment; $content = $afterComment; } return $ret; } /** * Extract comments that YUI Compressor preserves. * * @param string $in input * * @return array 3 elements are returned. If a YUI comment is found, the * 2nd element is the comment and the 1st and 3rd are the surrounding * strings. If no comment is found, the entire string is returned as the * 1st element and the other two are false. */ private static function _nextComment($in) { if (false === ($start = strpos($in, '/*!')) || false === ($end = strpos($in, '*/', $start + 3))) { return array($in, false, false); } $beforeComment = substr($in, 0, $start); $comment = self::$prepend . '/*!' . substr($in, $start + 3, $end - $start - 1) . self::$append; $endChars = (strlen($in) - $end - 2); $afterComment = (0 === $endChars) ? '' : substr($in, -$endChars); return array($beforeComment, $comment, $afterComment); } } Save