public String consumeCssIdentifier(){
  int start=pos;
  while (!isEmpty() && (matchesWord() || matchesAny('-','_')))   pos++;
  return queue.substring(start,pos);
}

public String consumeCssIdentifier ( ) { int start = pos ; while ( ! isEmpty ( ) && ( matchesWord ( ) || matchesAny ( '-' , '_' ) ) ) pos ++ ; return queue . substring ( start , pos ) ; }
consume a css identifier ( id or class ) off the queue ( letter , digit , - , _ ) http : / / www . w3 . org / tr / css2 / syndata . html # value - def - identifier
