63 lines
1.6 KiB
PHP
63 lines
1.6 KiB
PHP
<?php
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namespace W3TCL\Minify;
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class Minify_IgnoredCommentPreserver {
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protected $_replacementHash = '';
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protected $_ignoredComments = array();
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protected $_placeholders = array();
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public function __construct() {
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$this->_replacementHash = 'IgnoredCommentPreserver_' . md5(time());
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}
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public function setIgnoredComments($ignoredComments = array()) {
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$this->_ignoredComments = $ignoredComments;
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}
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public function search($html) {
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$html = preg_replace_callback('/<!--[\\s\\S]*?-->/',
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array($this, '_callback'),
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$html);
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return $html;
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}
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public function replace($html) {
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$html = str_replace(array_keys($this->_placeholders),
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array_values($this->_placeholders),
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$html);
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return $html;
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}
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protected function _callback($match) {
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list($comment) = $match;
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if ($this->_isIgnoredComment($comment)) {
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return $this->_reservePlace($comment);
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}
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return $comment;
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}
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protected function _isIgnoredComment(&$comment) {
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foreach ($this->_ignoredComments as $ignoredComment) {
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if ( ! empty( $ignoredComment ) && stristr($comment, $ignoredComment ) !== false) {
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return true;
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}
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}
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return false;
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}
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protected function _getPlaceholder() {
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return '%%' . $this->_replacementHash . '_' . count($this->_placeholders) . '%%';
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}
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protected function _reservePlace(&$content) {
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$placeholder = $this->_getPlaceholder();
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$this->_placeholders[$placeholder] = &$content;
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return $placeholder;
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}
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}
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