It turns out that this is as simple as it sounds. s///g returns the number of matches found. The replacement in the substitution here is entirely irrelevant, as are the three /e modifiers.

The subroutine could be rewritten as: 

sub {
  $_ = pop;
  s/\d//g;
}

[download]
It took me a little while to figure it out, though. :)

In reply to Re: Can anyone figure this out? by chipmunk
in thread Can anyone figure this out? by Anonymous Monk

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