BBEdit Lite GREP Problem

[sharingsunshine]

Hello,

I have several thousand relative links with or without slashes in the
front and already corrected absolute links.

I used this pattern with a slash:

<a href=""/([^>""]*)"">([^<]*) and this was the replace pattern

<a href=""http://www.theherbsplace.com/\1"">

This works fine if the link has no http://mydomain.com/ in front of it
already.

So, I was wondering how I could incorporate a test for

1. not changing the link if the http://mydomain.com/ prefix is present
already
2. no slashes in front of the relative file link and if it is present
perform the update with a slash being added to http://mydomain.com
prefix.

What I found doing the research was the ?! code but my GREP engine
converts it to ?+* and says it is not valid.

Thanks,

Randal