Per Jessen wrote:
> I have a bit of SA code where I strip leading and trailing whitespace -
>
> foreach (@addrs) { s/^\s*([^\s]+)\s*$/\1/; }
>
> Whenever I run this I get the warning "\1 better written as $1" which I
> understand to be perl telling me that the right side of s/// should use
> $digit, not \digit. I tried changing it to $1, but that didn't produce
> the expected result. What would be the correct way to write this?
I don't see any problems with changing /1 to $1 in that regex. It gives
the same results either way when I try it. Of course, it fails
completely if there is whitespace in the middle of the string.
What I always do to strip leading and trailing whitespace is this:
s/^\s+|\s+$//g
--
Bowie
