Getting the text content of a HTML page

[H Baric]

(Re my last post), I guess what I want to know is, how to use the info in 
the FILTER and REGULAR EXPRESSIONS etc for Processing Text / Data, when 
there are other characters ***besides A-Z and 0-9***

I can't find any examples that use other characters, they all use letters 
and numbers! Everything I try doesn't work :( So I'm concluding it's not 
possible? Which can't be...

Halp?!

Can someone write a line for me using the filter:
filter container {with | without} wildcardExpression

but using another character(s) not just letters and numbers?

Thanks again,
Heather