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Postings from January 2014
Hi Johan,
On Tue, 14 Jan 2014 21:12:57 +0100
Johan Vromans <jvromans@squirrel.nl> wrote:
> "Paul \"LeoNerd\" Evans" <leonerd@leonerd.org.uk> writes:
>
> > Personally I'd be in favour of prototyping a brand new pack-alike
> > thing on CPAN, to fix these and some other issues.
>
> Personally, I'd like to carry this even a step further.
>
> The Perl programming language has a couple of features that are
> basically programming languages within the programming language. These
> features are pattern matching, pack/unpack and formats. While
> historically this may have been a good approach, these features have
> seen a lot of evolution in the last 25 years and one may wonder whether
> keeping them as a language within a language is still a good thing.
>
> For most common purposes it's okay to have these features as they are
> right now, but when it comes to substantial extensions and improvements
> it may be worth to consider a new and totally different approach.
>
> For pack/unpack I'd love to see a CPAN module that uses a well defined,
> user friendly and less cryptic method to describe the data packing and
> unpacking.
There are some CPAN modules like that, including
https://metacpan.org/release/Data-ParseBinary , which was inspired by
PyConstruct - http://construct.readthedocs.org/en/latest/ .
For formats, there is Perl6-Form (see
http://perl-begin.org/tutorials/bad-elements/#perlform ).
I think we should not break backward-compatibility, but it may be a good idea
to keep some features frozen and recommend looking at better "user-land"
alternatives on CPAN.
>
> I know that it is a deadly sin to make a suggestion like this without
> offering a completely worked out design -- so be it. Nevertheless I do
> hope that it may free some minds from the dead end track of even more
> super-cryptic pack/unpack templates.
>
Yes, I agree.
> -- Johan
Regards,
Shlomi Fish
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