Re: Change meaning of v, V, and add h, H to match Perl6, add R to match PCRE and u

> C<w> matches a single I<word> character:
an alphanumeric character
> (that is, an alphabetic character, or a digit), or the
underscore (C<_>).
> What is considered a word character depends on the
internal encoding
> of the string. If it's in UTF-8 format, C<w>
matches those characters
> that considered word characters in the Unicode
database. That is, it
> not only matches ASCII letters, but also Thai letters,
Greek letters, etc.

I think you something out. 

--tom