From: Paul Lutus <nospam@...>
Date: 2006-09-02T11:40:26+09:00
Subject: Re: RegExp issues....

Ben V. wrote:

> I am trying to validate user input so it contains only letters, numbers,
> underscores and dashes. I am using this regexp:/[A-Z0-9_-]/. However,
> when I type in 'hello' in the field, it says that it doesn't match the
> regexp, yet I'm sure that reg exp works for letters, numbers, and
> underscores only. What am I doing wrong? Thanks for your help and time.

You are not accepting lowercase characters.

For convenience, try this:

/\w-/

The special token \w translates into "A-Za-z0-9_", IOW uppercase and
lowercase letters, numbers, and underscore, leaving only the dash to be
included explicitly.

-- 
Paul Lutus
http://www.arachnoid.com