I know this is a really simple PERL question, but I can't find the answer at google or here. How can I take a string of text, look for instances of www and convert that text into a clickable link?

For example, The quick brown fox jumps to www.cnn.com each day at noon.

I'd like to see

For example, The quick brown fox jumps to <a href=www.cnn.com>www.cnn.com</a> each day at noon.

Here's the kicker... if the link has already been made into a clickable link, the routine should not do anything... so if a user enters a field into the database with the A HREF tag, it should remain the same way as the user entered it....

For example, The quick brown fox <a href=www.cnn.com>jumps to cnn</a> each day at noon.... should remain the same.

Thanks guys (esp the girls who always seem to bail me out)

Wes