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Re: [perl #128420] Changes in regex recursion in 5.24

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Jan Goyvaerts
April 11, 2017 10:37
Re: [perl #128420] Changes in regex recursion in 5.24
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demerphq wrote:

>> On 04/10/2017 02:27 AM, Jan Goyvaerts wrote:
>>> yves orton via RT wrote:
>>>> Yeah, this is a regression  in 5.24 that should be fixed in 5.24.1
>>> I get the exact same behavior in 5.24.1 as in 5.24.0.  Is this still
>>> scheduled to be fixed in 5.24 or will the fix have to wait for 5.26?
> You want me to backport the patch?

You can do whatever you think is best for the Perl community.  I just 
want to know what the plan is.

I'm the developer of RegexBuddy which emulates the regex features in 
many applications and programming languages, including Perl 5.8 through 
5.22.  Basically, I need to decide whether to spend the time to make 
RegexBuddy emulate the buggy behavior in Perl 5.24 (or determine the 
situations in which the bug occurs and flag those as errors).   I've 
delayed supporting Perl 5.24 because I was under the impression that it 
was going to be fixed in Perl 5.24.1 which would render the effort of 
emulating it unnecessary.

Another change I've noticed in Perl 5.24.0 and 5.24.1 compared with 
previous versions is that [[:AlPhA:]] and [[:w:]] (and seemingly every 
other single letter class) are no longer errors, but also doesn't seem 
to match anything (or at least nothing obvious that I could figure out).

Kind regards,
Jan Goyvaerts


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