It occurred to me that the snippet I posted, even if it does what you want, it probably it doesn't tell you much about why yours is not working, so here are just a couple of comments on your regexps. The /m modifier is useful only if you are matching a string that contains multiple lines; it tells perl to match ^ and $ to the beginnings and ends of lines. Study this example and you will see what I mean: 

use strict;
use warnings;
my $string = "foo\nbar\nbaz\n";
print "1st match ", $string =~ /^bar/  ? "succeeded\n" : "failed\n";
print "2nd match ", $string =~ /^bar/m ? "succeeded\n" : "failed\n";
print "3rd match ", $string =~ /bar$/  ? "succeeded\n" : "failed\n";
print "4th match ", $string =~ /bar$/m ? "succeeded\n" : "failed\n";
__END__
1st match failed
2nd match succeeded
3rd match failed
4th match succeeded

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Next, the /g modifier makes sense only if you are matching the same string multiple times want to match the same regexp multiple times in the same string. For example, using the same string as for the example above: 
while ( $string =~ /(a\w+)/g ) {
  print "$1\n";
}
__END__
ar
az

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Lastly, the expression $i =~ s/.//gm simply sets $i to the empty string (in this case the /m modifier does nothing; you'd get the same result without it). I don't think this gets you anything, but if that's what you wanted to do, it is simpler to just assign the empty string: $i = ''.

Update: Corrected sloppy wording. Thanks to Roy Johnson.

the lowliest monk

In reply to Re: regex man they are tough by tlm
in thread regex man they are tough by tgolf4fun

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