Using .htaccess to forward lower-case directories?

[Mooseman]

I would like to use my .htaccess to redirect users from lower-case directory names to the upper-case directory names when they exist. (e.g. example.com/directory to example.com/DIRECTORY when the directory "DIRECTORY" exists)

Is this possible? Thanks!

[schleppel]

You would need a RewriteMap which requires access to the server configuration.

You could use a custom 404 error handler and a server-side script.

ErrorDocument 404 /custom404handler.php