You might want to capture only letters instead.

 
my $string = "It's a cat and mouse game.";
$string =~ s/(.)/$1 x (1 + rand(3))/ges;
print "$string\n";

$string = "It's a cat and mouse game.";
$string =~ s/([A-Za-z])/$1 x (1 + rand(3))/ges;
print "$string\n";

[download]
And the output is -
IIIt'''s  a  cccat annddd mmoooussee gaammeee...
IIItt'sss aa cccaaattt and mmoouusee ggaame.

[download]
Note that in the first case, spaces are multiplied too. But I thought the original question was to multiply letters only. ;-)

 Update: Crossed out my comment. I agree I was too fussy on the 'technical correctness'. What's more important is not the code, but the idea that's behind it. And yes I like tilly's code too.

In reply to Re: Re: Function over all letters in a string by Roger
in thread Function over all letters in a string by Jobby

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