/**
* Transforms CSS into XML
*
* @return string $css
*/
public static function to_xml($css)
{
# Convert comments
self::$comments = array();
$xml = preg_replace_callback('/\\/\\*(.*?)\\*\\//sx', array('NestedSelectors', 'encode_comment'), $css);
# Convert imports
$xml = preg_replace('/
@import\\s+
(?:url\\(\\s*)? # maybe url(
[\'"]? # maybe quote
(.*?) # 1 = URI
[\'"]? # maybe end quote
(?:\\s*\\))? # maybe )
([a-zA-Z,\\s]*)? # 2 = media list
; # end token
/x', "<import url=\"\$1\" media=\"\$2\" />", $xml);
# Add semi-colons to the ends of property lists which don't have them
$xml = preg_replace('/((\\:|\\+)[^;])*?\\}/', "\$1;}", $xml);
# Transform properties
$xml = preg_replace('/([-_A-Za-z*]+)\\s*:\\s*([^;}{]+)(?:;)/ie', "'<property name=\"'.trim('\$1').'\" value=\"'.trim('\$2').'\" />\n'", $xml);
# Transform selectors
$xml = preg_replace('/(\\s*)([_@#.0-9A-Za-z\\/\\+~*\\|\\(\\)\\[\\]^\\"\'=\\$:,\\s-]*?)\\{/me', "'\$1\n<rule selector=\"'.preg_replace('/\\s+/', ' ', trim('\$2')).'\">\n'", $xml);
# Close rules
$xml = preg_replace('/\\;?\\s*\\}/', "\n</rule>", $xml);
# Indent everything one tab
$xml = preg_replace('/\\n/', "\r\t", $xml);
# Tie it up with a bow
$xml = '<?xml version="1.0" ?' . ">\r<css>\r\t{$xml}\r</css>\r";
return simplexml_load_string($xml);
}
