Extracting Tokens
RWUTokenizer provides two variations on the tokenizing interface:
*the function call operator, operator()()
*the nextToken() method
Each interface has overloads that allow you to tokenize using the default delimiters, a set of delimiters specified as an RWUString, a set of delimiters specified as the first N code units of an RWUString, or a set of delimiters specified as an RWURegularExpression (see Specifying Delimiters).