in reply to Re: How to insert a "/" within a string?
in thread How to insert a "/" within a string?

To be in the same spirit as most of the other solutions proposed here, you should have written ($index = index($str, 'CO', $index)) > -1 as

lc($index = index($str, 'CO', $index)) =~ /^-/
;-)

-- 
Ronald Fischer <ynnor@mm.st>