From: Robert Klemme <shortcutter@...>
Date: 2009-04-08T19:00:13+09:00
Subject: Re: Concatenating Regex Smartly

On 08.04.2009 11:47, Shak Shak wrote:
> Is there a way of quickly concatenating two full string patterns in a
> way that takes into account the boundaries? So for example:
> 
> \A\d+\Z  and \A[a-z]+\Z

IIRC the "Z" must be lower case.

> would give:
> 
> \A\d+[a-z]+\Z
> 
> ?
> 
> Or is this a context sensitive situation where I'd have to parse and
> join it myself? If so, what is the best way to "tokenise" a pattern?

Why do you have to parse them?  There is a bit of context missing but 
without further facts I would recommend to keep individual patterns 
without the start and end anchors and only apply those after 
constructing the full regexp that you want to use.  My 0.02 EUR...

Kind regards

	robert