/**
* css解析入口
* @param $contents {String} css文本内容
* @return string {String} 处理后的文件
*/
protected function cssParse($contents)
{
// 处理逻辑
$doc = JCssParser::parse($contents);
$ret = new stdClass();
$ret->return = null;
trigger('css_parse_start', $this, $doc, $ret);
if ($ret->return) {
$doc = $ret->return;
}
$importContents = $this->handleImport($doc['stylesheet']['rules']);
if ($this->isReplaceUri) {
$this->handleBackground($doc['stylesheet']['rules']);
}
return $importContents . JCssParser::stringify($doc);
}
