lessc_parser::removeComments PHP Метод

    protected function removeComments($text)
    {
        $look = array('url(', '//', '/*', '"', "'");
        $out = '';
        $min = null;
        while (true) {
            // find the next item
            foreach ($look as $token) {
                $pos = strpos($text, $token);
                if ($pos !== false) {
                    if (!isset($min) || $pos < $min[1]) {
                        $min = array($token, $pos);
                    }
                }
            }
            if (is_null($min)) {
                break;
            }
            $count = $min[1];
            $skip = 0;
            $newlines = 0;
            switch ($min[0]) {
                case 'url(':
                    if (preg_match('/url\\(.*?\\)/', $text, $m, 0, $count)) {
                        $count += strlen($m[0]) - strlen($min[0]);
                    }
                    break;
                case '"':
                case "'":
                    if (preg_match('/' . $min[0] . '.*?(?<!\\\\)' . $min[0] . '/', $text, $m, 0, $count)) {
                        $count += strlen($m[0]) - 1;
                    }
                    break;
                case '//':
                    $skip = strpos($text, "\n", $count);
                    if ($skip === false) {
                        $skip = strlen($text) - $count;
                    } else {
                        $skip -= $count;
                    }
                    break;
                case '/*':
                    if (preg_match('/\\/\\*.*?\\*\\//s', $text, $m, 0, $count)) {
                        $skip = strlen($m[0]);
                        $newlines = substr_count($m[0], "\n");
                    }
                    break;
            }
            if ($skip == 0) {
                $count += strlen($min[0]);
            }
            $out .= substr($text, 0, $count) . str_repeat("\n", $newlines);
            $text = substr($text, $count + $skip);
            $min = null;
        }
        return $out . $text;
    }