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Postings from August 2013
On 1 August 2013 13:08, demerphq <demerphq@gmail.com> wrote:
> On 1 August 2013 13:03, demerphq <demerphq@gmail.com> wrote:
>> On 1 August 2013 12:38, Ed Avis <eda@waniasset.com> wrote:
>>> Out of interest is there a performance boost from reapplying the last
>>> successfully matched regexp using // or is it just a golfing shortcut?
>>
>> Hypothetically a tiny boost.
>
> I should add that its a feature that has extremely limit utility.
>
> As far as I can tell it is only useful in a case like this:
>
> if (/pat1/ || /pat2/ || /pat3/) {
> s//$something/; # change whatever we matched
> }
>
> Or similar constructs. It actually makes no sense that it applies to
> m//, to the extent it should exist at all it should apply only to
> s///.
IMO we should nuke it and replace it with a (*LASTMATCH) metapattern.
Yves
--
perl -Mre=debug -e "/just|another|perl|hacker/"
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