Non-WWW to WWW in specific directory

I have the rewrite for visitors who go to mysite.com to be redirected to www.mysite.com and it works fine.

The problem is that I cannot get this to work for a specific directory.

I want users who navigate to mysite.com/directory to be redirected to www.mysite.com/directory.

This is what I have in that specific directory's .htaccess (not my root's .htaccess):

Code:

# Non-www to WWW
RewriteCond %{HTTP_HOST} !^www\.mysite\.com\.directory[NC]
RewriteRule (.*) http://www.mysite.com/directory/$1 [R=301,L]

And for some reason, this results in a browser error telling me it is resulting in an infinite loop that will never end.

Why is that and how do I fix it?

Thanks

 

I think your format is a little off. Check out apaches guide to rewriting urls.
http://httpd.apache.org/docs/2.0/misc/rewriteguide.html

also a good cheat sheet
http://www.addedbytes.com/apache/mod_rewrite-cheat-sheet/

 

I am currently using this

Code:

# WWW-ONLY #
RewriteCond %{HTTP_HOST} !^www\.
RewriteRule (.*) http://www.%{HTTP_HOST}/$1 [R=301,L]

site.com is easily redirected to www.site.com

The problem is that other directories aren't redirected. Exp. site.com/forum/ to www.site.com/forum/. How can this be done? I tried %{REQUEST_URI}, but to no avail...