How to Use Tailored Regular Expressions
To allow RWURegularExpression to use the tailored regular expression features, you may pass RWURegularExpression::Tailored as the second argument of the constructor as follows:
 
RWURegularExpression re(SomeRWUString,RWURegularExpression::Tailored);
or you may construct first, then set the level:
 
re.setLevel(RWURegularExpression::Tailored);
For more information on creating a regular expression, see How to Create an RWURegularExpression.