public int Position = 0;
String Token = null;
string CurrentString;

bool R(string RegEx) {
	SkipSpacesComments();
	Match M = Regex.Match(CurrentString, "^" + RegEx
	                      , RegexOptions.IgnoreCase);
	if (M.Success) {
		Token = CurrentString.Substring(0, M.Length);
		Position += M.Length + SpaceLength;
	}
	return M.Success;
}

bool W(string C) {
   return R(C + "\\b"); // whole words only
}
bool C(string C) {
   return R(Regex.Escape(C)); 
}