Kevin Old wrote:
> On 12/16/05, John W. Krahn <[EMAIL PROTECTED]> wrote:
>>Kevin Old wrote:
>>>On 12/16/05, John W. Krahn <[EMAIL PROTECTED]> wrote:
>>>>Kevin Old wrote:
>>>>
>>>>>I'm trying to define a constant hash and have the following:
>>>>>
>>>>>use constant STOPWORDS => map { lc $_ , 1 } qw(a about above across adj
>>>>>after);
>>>>>
>>>>>I do not get a hash from this.
>>>>You are defining STOPWORDS as a list.
>>>What is the correct way to define STOPWORDS as a hash?
>>You can't because perl implements constants using subroutines and subroutines
>>can only return a list.
>
> So to achieve an anonymous hash I'd have to do the following, correct?
>
> use constant STOPWORDS => {
> 'a' => 1,
> 'about' => 1,
> 'above' => 1,
> 'across' => 1,
> 'adj' => 1,
> 'after' => 1,
> };
Yes, that would store a reference to an anonymous hash in STOPWORDS. Note
that only the reference would be a constant, the hash itself could still be
modified.
John
--
use Perl;
program
fulfillment
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