From: Phrogz <phrogz@...>
Date: 2010-01-11T22:45:09+09:00
Subject: Re: Regex help

On Jan 11, 5:57 am, Robert Klemme <shortcut...@googlemail.com> wrote:
> > On Monday 11 January 2010, Chris Lervag wrote:
> >> |I want to test a string for three properties:
> >> |1) It is exactly 9 characters long.
> >> |2) Character number 5 is a comma (',').
> >> |3) The other characters are either numbers 0-9 or letters a-f.
> /\A[a-f\d]{4},[a-f\d]{4}\z/

Slightly more terse:
/\A\h{4},\h{4}\z/
...where \h is a hexadecimal character [0-9a-fA-F] (assuming upper-
case a-f is fine).