public function generate()
{
foreach ($this->files as $file) {
mark('解析CSS文件：' . $file);
$this->file = $file;
$content = file_get_contents($file);
$cssDoc = JCssParser::parse($content);
foreach ($cssDoc['stylesheet']['rules'] as $rule) {
if ($rule['type'] === 'rule') {
$bgDecls = array();
$merge = null;
foreach ($rule['declarations'] as $declaration) {
if (strpos($declaration['property'], 'background') !== false) {
array_push($bgDecls, $declaration);
} elseif ($declaration['property'] === 'merge') {
$merge = $declaration['value'];
}
}
if ($merge) {
$this->setConfigByRule($merge, $bgDecls);
}
}
}
}
return $this;
}
/**
* 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);
}
private static function comment()
{
if (self::$css[0] !== '/' || self::$css[1] !== '*') {
return null;
}
$i = 2;
while (isset(self::$css[$i]) && (self::$css[$i] !== '*' || isset(self::$css[$i + 1]) && self::$css[$i + 1] !== '/')) {
++$i;
}
$i += 2;
if (!isset(self::$css[$i - 1])) {
throw new Exception('End of comment missing');
}
$str = substr(self::$css, 2, $i - 2 - 2);
self::$css = substr(self::$css, $i);
self::whitespace();
return array('type' => 'comment', 'comment' => $str);
}
