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Re: the variable-length lookbehind experiment

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From:
Karl Williamson
Date:
June 20, 2021 13:36
Subject:
Re: the variable-length lookbehind experiment
Message ID:
4055fdee-e0d7-1845-2c9e-0237b5b500fc@khwilliamson.com
On 6/20/21 6:32 AM, Ricardo Signes wrote:
> On Sun, Jun 20, 2021, at 7:28 AM, hv@crypt.org <mailto:hv%40crypt.org> 
> wrote:
>> In the ticket you call it an "experimental feature", but I think 
>> "experiment"
>> is more accurate - there's nothing in feature.pm for it.
> 
> Regular expression are a feature of perl, but are not in feature.pm.  
> perlexperiment.pod calls the listed things "experimental features".  I 
> think "feature" is a pretty tough word to circumscribe so tightly when 
> describing a programming language.
> 
>> I think it is worth asking whether anyone has been using it: I don't 
>> recall
>> any mention here of positive or negative experiences with it. I see that a
>> handful of simple tests were added in 2abbd513b87 (below, in 
>> t/re/re_tests),
>> but I don't know if more comprehensive tests were added later.
> 
> I agree that it would be good to hear from people using this.
> 
> -- 
> rjbs

Anybody matching /i with things like the SHARP S and a lookbehind is 
automatically using it.

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