in reply to = for lists and hashes?

Is there anything that keeps you from saying 
%myHash = ( key1 => 'common Value1',
            key2 => 'common Value2'
)
     unless keys %myHash;

[download]
? Since you're eval'ing the file anyways, there's nothing to keep you from using any perl construct you want, is there?

You could even hit it key by key, doing 

$myHash{key1} ||= 'common Value1';
$myHash{key2} ||= 'common Value2';

[download]

--
Mike

Replies are listed 'Best First'.
Re: Re: = for lists and hashes?
by hossman (Prior) on Mar 20, 2002 at 21:29 UTC
    just for completeness: you can also say... 
    @myArray = ('common Value1',
            'common Value2',
)
     unless scalar @myArray;

    [download]

    NOTE: This type of solution breaks down if the user sets @myArray (or %myHash) to an empty array in their conf file (but your existing system of setting scalars breaks down the same way if they have $foo = 0; in their conf file)

[reply]
[d/l]
[select]

      and this will work great for arrays!

      Right now, I can't think of a reason we'd be creating empty arrays... yet ;)

      Thanks!

       

      -justin simoni
      !skazat!

[reply]
Re: Re: = for lists and hashes?
by skazat (Chaplain) on Mar 20, 2002 at 22:57 UTC

    This will work great for hashes: 

     
 unless keys %myHash;

    [download]

    I'd hate to hit it key by key, since I have hashes that are almost 100 keys long :)

    uggh.

    Thanks

     

    -justin simoni
    !skazat!

[reply]
[d/l]

In Section Seekers of Perl Wisdom