I find myself doing this a fair bit (though with significantly longer lists - anywhere from 2 to 20 entries, depending): 

do_something($_) for qw(
  foo
  bar
  baz
  );

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It allows me to trivially add something or remove something. Well, removing isn't quite as nice as with regular lists - I can't just comment it out, I have to delete the whole line. However, what I can't do with this is do something like: 
do_something($_) for qw(
  foo
  bar  # introduced November, 2005
  baz  # deprecated - remove by December, 2006
  );

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(This does actually tell me it can't do it with a warning message: Possible attempt to put comments in qw() list at ./x.pl line 10.) The closest I can come up with is something like this: 
#!/usr/bin/perl

use strict;
use warnings;

do_something($_) for qw(
  foo
  bar  # introduced November, 2005
  baz  # deprecated - remove by December, 2006
  );

print "-----------------\n";

do_something($_) for words( <<WORDS );
  foo
  bar  # introduced November, 2005
  baz  # deprecated - remove by December, 2006
WORDS


sub do_something
{
    print " [$_[0]]\n";
}

sub words
{
    my @lines = split /\n/, shift;
    s/#.*$// for @lines;
    map { split ' ', $_ } @lines;
}

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However, I'm pretty sure that it's way slower than any solution that allows the perl parser to do it. And, for some reason, it just doesn't feel elegant. And, for that reason, I haven't actually gone there - I'm not currently inserting comments into my lists.

Has anyone ever had a similar desire? What solution did you use?

In reply to comments and qw by Tanktalus

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