I'm playing for regular expressions in TextPad and I'm loving it but it seems there's no support for shorthand character classes... For instance if I type some stuff with numbers and search for:
Look in TextPad's help under Reference Information | Regular Expressions and How to... | Find and Replace Text | Use Regular Expressions.
The regular expression recogniser used by TextPad is rather old and weak, and there is much that other healthy young recognisers can do that TextPad's can't. The recogniser that WildEdit (http://www.textpad.com/products/wildedit/) uses (Boost) is far more powerful.