gistfile1.txt

enum KeywordValue {
  NotKeyword,
  ValidKeyword,
  InvalidKeyword
}

static inline KeywordValue parseValidPrimitive(CSSPropertyID id, int value)
{
   switch(id) {
   case CSSPropertyEmptyCells:          // show | hide | inherit
       if (id == CSSValueShow
           || id == CSSValueHide)
           return ValidKeyword
       return InvalidKeyword;
   case:
      foobar;
   }
   return NotKeyword;
}