I think this should clear things up a bit (from perlsub):
A "local" just gives temporary values to global (meaning package) variables. It does not create a local variable.
I read that as meaning it works like this: 
print "$x, ", pos($x), "\n";
{ 
  $tmp_1 = $x;
  $x = undef;
  $x = $tmp_1;   # assign "old" value to $x, losing the pos() informat
+ion.
}
print "$x, ", pos($x), "\n";

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In reply to Re: search position is getting reset after 'local' by Joost
in thread search position is getting reset after 'local' by jesuashok

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