public function __construct($lessc, $sourceName = null)
{
$this->eatWhiteDefault = true;
// reference to less needed for vPrefix, mPrefix, and parentSelector
$this->lessc = $lessc;
$this->sourceName = $sourceName;
// name used for error messages
$this->writeComments = false;
if (!self::$operatorString) {
self::$operatorString = '(' . implode('|', array_map(array('HTML_CSS_Less', 'preg_quote'), array_keys(self::$precedence))) . ')';
$commentSingle = HTML_CSS_Less::preg_quote(self::$commentSingle);
$commentMultiLeft = HTML_CSS_Less::preg_quote(self::$commentMultiLeft);
$commentMultiRight = HTML_CSS_Less::preg_quote(self::$commentMultiRight);
self::$commentMulti = $commentMultiLeft . '.*?' . $commentMultiRight;
self::$whitePattern = '/' . $commentSingle . '[^\\n]*\\s*|(' . self::$commentMulti . ')\\s*|\\s+/Ais';
}
}
