prev simply isn't Perl. next and last are though.

You can always rewrite a for-loop from: 

  foreach my $item (@list) {
    something($item);
  }

[download]
to 
  for (my $i = 0; $i < @list; $i++) {
    something($list[$i]);
  }

[download]
By modifying $i you can get to the "previous" iteration (something like $i--. However, be careful not to create an infinite loop.

Hope this helps, -gjb-

In reply to Re: 'prev' in for loop by gjb
in thread 'prev' in for loop by kulls

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