Location regex issue.

[Athan Dimoy]

I have a problem with regex in a location used to deny access to some Drupal 
directories and files.

location ~ 
\.(engine|inc|info|install|module|profile|po|sh|.*sql|theme|tpl(\.php)?|xtmpl)$|^(code-style\.pl|Entries.*|Repository|Root|Tag|Template)$ 
{
    return 404;
}

First part up to OR operator (|) works fine but seems to ignore the ^ 
operator (right next to |).

Trying to isolate the problem I used the following

location ~ ^code-style\.pl$ {
    return 404;
}

Unfortunately code-style.pl was still accessible. Is ^ (begin of) operatior 
supported in location context?

Thanks,
Athan