tom arnall wrote:
> On Sunday 28 May 2006 12:20 am, John W. Krahn wrote:
>>tom arnall wrote:
>>>the following code:
>>>
>>>     $_='abcd';
>>>     @f = /(x)(y)|(a)(b)/;
>>>
>>>makes the first two cells of '@f' to be undefined, then puts 'a' and 'b'
>>>in the third and fourth cells. how do i get the system to put 'a' and 'b'
>>>in the first two cells and to produce no undefined cells?
>> 
>>      @f = grep defined, /(x)(y)|(a)(b)/;
> 
> yes. solves my problem. how did you find out about this?

By programming in Perl for many years.  :-)


John
-- 
use Perl;
program
fulfillment

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