public function propertyValue(&$value, $keyName = null)
{
$values = array();
if ($keyName !== null) {
$this->env->currentProperty = $keyName;
}
$s = null;
while ($this->expressionList($v)) {
$values[] = $v;
$s = $this->seek();
if (!$this->literal(',')) {
break;
}
}
if ($s) {
$this->seek($s);
}
if ($keyName !== null) {
unset($this->env->currentProperty);
}
if (count($values) == 0) {
return false;
}
$value = n2lessc::compressList($values, ', ');
return true;
}
