";
$content = preg_replace('{
(?<=\*/)([^/\*]+/\*)([^\*/]+\*/) # Add a backslash also at the end hack comment, so the next pass will not touch it
}x', '\1\\\\\2', $content);
$content = preg_replace('<
\s*([@{}:;,]|\)\s|\s\()\s* | # Remove whitespace around separators, but keep space around parentheses.
/\*[^*\\\\]*\*+([^/*][^*]*\*+)*/ | # Remove comments that are not CSS hacks.
[\n\r] # Remove line breaks.
>x', '\1', $content);
echo ''.$content.'
';
}
$time_end = microtime(true);
$time = $time_end - $time_start;
printf("
Done in %.3f sec.", $time);