Reg. Expression & Mod_Rewrite

[Mr.Domains]

Hi,
I am having a basic problem with Regular Expressions and the Mod_Rewrite rule. I need to pattern match the space (" ") character ???

I am trying to rewrite a URL which contains a username variable:

RewriteRule ^([a-zA-Z0-9_.]*)/index.html /index.php?username=$1 [L,NC]

This works fine with usernames like "Dave_439" or "Emma.C", but unfortuantely the site I'm working on also alows users to have spaces in their username, so I also need to match "Dave 439" or "Emma C".

Does anyone know how to include spaces in my Regular Expression?
(Obviously I have tried [a-zA-Z0-9_. ]* which generates errors...)

[DavidAusman]

Probably you should use PHP to replace 'spaces' with something else that can be found within their username.

[Mr.Domains]

Thanks, but I figured it out, you have to escape the space with a backslash:

[a-zA-Z0-9_\.\ ]*

[Dale Hubbard]

Try:

\x20

That represents dec 32 for 'space' in hex.

OK - crossed posts - both should work

[DavidAusman]

If you escape 'space' with backslash, what did the url looks like? I mean will it looks like this?
1) http://yourdomain.com/dave%20439
or this?
2)http://yourdomain.com/dave_439