Re^8: Modernizing the Postmodern Language?

> have lots of old code which suddenly needs to be rewritten to be portable to both existing and new perls

Hmm ... shouldn't including something like use 5.10.0 imply use compat::perl5 when run under Perl 7 or later and how would this brake old code?

Cheers Rolf
_{(addicted to the Perl Programming Language :)

Wikisyntax for the Monastery}

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Re^9: Modernizing the Postmodern Language? by dsheroh (Monsignor) on Jul 04, 2020 at 11:01 UTC
Having `use 5.whatever` imply `use compat::perl5` would be a start, at least. But it wouldn't be a 100% solution because a lot of code doesn't bother to specify a Perl version. IMO, the most straightforward solution seems to be to add an empty `compat::perl5` module to the core Perl 5 distribution (and on CPAN), so that Perl 5 will recognize `use compat::perl5` as a valid statement, but one which doesn't actually do anything.	[reply] [d/l] [select]
Re^10: Modernizing the Postmodern Language? by LanX (Saint) on Jul 04, 2020 at 11:30 UTC
This was about upgrading code which runs equally well on P5 and P7. So manually adding a simple `use 5...` would solve this. `use compat::Perl5` is IMHO thought to be an automated flag introduced by P7 at compile time when downloading modules from CPAN without P7 meta tag. I don't think using it explicitly is a good idea, this would only add to more confusion. `use 5...` is far easier to understand and works out of the box on all older P5 installations. It would be nice to see a formal RFC and a test suite covering all disputed edge cases. Cheers Rolf _{(addicted to the Perl Programming Language :) Wikisyntax for the Monastery}	[reply] [d/l] [select]
Re^9: Modernizing the Postmodern Language? by hippo (Archbishop) on Jul 03, 2020 at 15:27 UTC
Indeed it should but it remains to be seen if it will.	[reply]
Re^10: Modernizing the Postmodern Language? by LanX (Saint) on Jul 03, 2020 at 15:40 UTC
Is there any formal RFC where we could comment or just this fuzzy mailing list? I was told thats how other, now more successful, Language projects manage new features. Cheers Rolf _{(addicted to the Perl Programming Language :) Wikisyntax for the Monastery}	[reply]