source: trunk/www.guidonia.net/wp/wp-content/plugins/feedwordpress/feedwordpresshtml.class.php@ 44

<?php 
class FeedWordPressHTML {
        function attributeRegex ($tag, $attr) {
                return ":(
                (<($tag)\s+[^>]*)
                ($attr)=
                )
                (
                        \s*(\"|')
                        (((?!\\6).)*)
                        \\6([^>]*>)
                |
                        \s*(((?!/>)[^\s>])*)
                        ([^>]*>)
                )
                :ix";
        } /* function FeedWordPressHTML::attributeRegex () */

        function attributeMatch ($matches) {
                $suffix = (isset($matches[12]) ? $matches[12] : $matches[9]);
                $value = (isset($matches[10]) ? $matches[10] : $matches[7]);

                return array(
                "tag" => $matches[3],
                "attribute" => $matches[4],
                "value" => $value,
                "quote" => $matches[6],
                "prefix" => $matches[1].$matches[6],
                "suffix" => $matches[6].$suffix,
                "before_attribute" => $matches[2],
                "after_attribute" => $suffix,
                );
        } /* function FeedWordPressHTML::attributeMatch () */
} /* class FeedWordPressHTML */