Excluding from regex match

[ntbgl]

I have a form that allows users to name pages.

It use to be that page names on my site could not include a forward slash (/) in them. I used the following regex to block matching titles:

.*\/.*

However, now, users are able to have a forward slash if the title starts with "Title:". How can I rewrite my regex to only block matching titles that don't have Title: in front?

[^Title:].*\/.* ?

Thanks

[jdMorgan]

It would have been helpful to see the code to give a more-specifically-formatted example, but hopefully, you can adapt this:

If string contains "/"
^[^/]*/
AND If string is NOT Title:<zero or more characters not matching a slash> followed by a slash
!^Title:[^/]*/
Then block

It is not necessary in mod_rewrite regex to escape slash characters.

Jim