Just for fun, here's an alternative version without /e ;-) 
$i = 0;
@no = qw(one two three four five);
foreach ( @no ){
  s/e/foo.$i/ && $i++ while /e/;
}
print "@no\n";
__END__
onfoo.0 two thrfoo.1foo.2 four fivfoo.3

[download]

--
perl -pe "s/\b;([st])/'\1/mg"

In reply to Re: Increase number per regex replacement by belg4mit
in thread Increase number per regex replacement by bittondb

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