How to check if a string as numbers in XSLT

Hi ,

Can you please let me know the function name and usage to find if a given string has numbers in it... like

"app3le" has 3 in it..

I have found one function in w3schools website:

contains(string1,string2)

which returns true if string1 contains string2, otherwise it returns false

Example: contains('XML','XM')
Result: true

but using this function and looping it 10 times (i.e., from 0-9) is bit tedious.

Can you suggest some other way...

Thanks in advance

XSLT 2.0 support regular expression.
Regard these links:
the good publication

the chapter from zvon.org tutorial

the official xslt 2.0 specification (very long html document)-chapter 15 is about regexps

The zvon.org can be usable as a xslt reference (elements, functions etc)
[ February 28, 2008: Message edited by: Pavel Cherkashin ]