I played around with this a while ago, but not in any great depth. As far as I can tell, it's possible to declare a sub inside another sub block, but any named subs you declare are globally accessible symbols.

If you want a truly local sub, your best bet is probably to build a closure lexically-scoped anonymous sub (thanks revdiablo): 

sub foo {
  this;
  that;
  my $bar = sub {
    # ...
  }; # EDIT: this semi needs to be here

  if(cond) {
    $bar->();
  } else {
    for (a loop) {
      something based on $_;
      $bar->();
    }
  }
}

[download]

It's cruftier than a local named sub, but it should do the trick.

--
F o x t r o t U n i f o r m
Found a typo in this node? /msg me
% man 3 strfry

In reply to Re: Is it possible to create a sub exclusive to a sub? by FoxtrotUniform
in thread Is it possible to create a sub exclusive to a sub? by punkish

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