apache internal redirect/rewrite configuration question

[mshmsh]

Hi,
Clients may enter my apache server thro' /entrypoint/A or /entrypoint/B
I like to set the environment variable requestor to A or B accordingly
and then redirect (internally) to /entrypoint/file.php without sending a redirect to the client
How do I do this.
What can I fill in the CALL /entrypoint/file.php line to accomplish this?

<LocationMatch "/entrypoint/A">
SetEnv requestor A
===========CALL /entrypoint/file.php==============
</LocationMatch>

<LocationMatch "/entrypoint/B">
SetEnv requestor B
===========CALL /entrypoint/file.php==============
</LocationMatch>

Thanks,
Shyam

[justindossey]

If you haven't worked it out already:

There are several ways to do this. The one I find the easiest is to use mod_rewrite:

RewriteEngine On
RewriteRule .* /entrypoint/file.php [L]

The REQUEST_URI in the request env will contain /entrypoint/A or /entrypoint/B.