[xsl] Tokenize question: tokenize on words, spaces and punctuation

[Martin Holmes <mholmes@xxxxxxx>]

Hi there,

This is really a question for XPath regex gurus:

I need to tokenize a string of text such that words, punctuation and 
spaces are split. So from this:

Oh, what a great day!

I need to get:

('Oh', ',', ' ', 'what', ' ', 'a', ' ', 'great', ' ', 'day', '!')

I've been hacking away at this for a while, but regexps aren't my strong 
suit. Can anyone help?

Cheers,
Martin