Damian Conway wrote:
> Austin Hastings wrote:
>
>> All of these have the same solution:
>>
>> @list = ...
>> for [undef, @list[0...]] ¥ @list ¥ [EMAIL PROTECTED], undef] -> $last, $curr,
>> $next {
>> ...
>> }
>>
>> Which is all but illegible.
>
>
> Oh, no! You mean I might have to write a...subroutine!??
>
Austin Hastings wrote:
>>1. Requirement to repeat the possibly complex expression for the list.
>>2. Possible high cost of generating the list.
>>3. Possible unique nature of the list.
>>
The subroutine addresses #1, but not 2 or 3.
Also, there's a #4: modified state, which is hinted at but not really
covered by #3.
=Austin
