hostile17,
I mentioned the /s modifier due to this, from the perlre page:

s   Treat string as single line.  That is, change "." to
    match any character whatsoever, even a newline, which
    it normally would not match.
[download]

But in re-reading that and your code, I found I was mistaken and you do need it incase your tags span multiple lines.. Doh! Ahh well, glad you caught the problem otherwise =]

-marius

Edit: chipmunk 2001-03-30