G'day there Niek,

In that English page, look at the list of functions in MOREFUNC; there are several REGEX.... functions.
Pick any of these and click the link to Regular expressions in the text, to get an explanation

You're quite right. Perhaps I should have looked a bit closer the
first time =).

I can even understand some of the explanations, so I may just be
off to the world of regexes. Not at the moment though. It's past my bed
time so I'm off to sleep. Regexes can wait until tomorrow.

Thanks for taking the time to let me know where to look. It's very
kind of you. Thanks.

--
See ya,
Ken McLennan
Qld, Australia