On Sat, 4 Jun 2005 12:05:06 -0700, you wrote:
>Hopefully quick syntax/philosophy question:
>
>I have a array grep like this:
> my @newArray = grep ($something, $maybeBiggerOriginalArray);
>
>but would much prefer to take greps list and use it as the keys of a hash. Now
>the keylist of a hash cannot be modified, i.e.
> (keys $newHash) = grep (...)
>is rightly forbidden nonsense.
>
>obviously you can do this in a 2-step by e.g. do the first grep, and then
> foreach (@newArray) { $newHash{$_} -> {thing} = $_; } # or assign
>whatever
>
>but thats hideous. any tips on how to dump a list to the keys of a hash
>directly? once again i'm sure i'm missing something.
Without knowing precisely what values you wish to assign to the hash
elements, I believe you should be able to use a hash slice:
@newHash{grep $something, $MaybeBiggerOriginalArray} = @ValuesArray;
--
Eric Amick
Columbia, MD
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