Hi Monkees,

I like using global vars when they are genuinely global, but I often end up with unintended global vars, and they bug me.

I was wondering what tricks you use to avoid them or, alternatively, how I might cure my anal retentiveness...

For example, how would I avoid the global $vrx in the following simplified example(yet still allow a persistent value)?

use strict;

my $vrx;
while(<DATA>){
  $vrx = $1 if /^10*(\d*)/;
  print $vrx . $1 . "\n" if /^20*(.*)/;
}
__DATA__
1000100
2001foo
2002bar
300badline
2003hello
1000200
2001bish
2002bash

[download]
map{$a=1-$_/10;map{$d=$a;$e=$b=$_/20-2;map{($d,$e)=(2*$d*$e+$a,$e**2
-$d**2+$b);$c=$d**2+$e**2>4?$d=8:_}1..50;print$c}0..59;print$/}0..20

[download]
Tom Melly, pm (at) cursingmaggot (stop) co (stop) uk

In reply to Avoiding Global Vars by Melly

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