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Postings from July 2020
On Tue, 30 Jun 2020 at 13:37, Paul "LeoNerd" Evans <leonerd@leonerd.org.uk> wrote: > > On Tue, 30 Jun 2020 12:02:10 +0200 > Salvador Fandiño <sfandino@gmail.com> wrote: > > > It you want to avoid the "use v7;" line, then you should be able to > > tell perl explicitly in some way you want the 7 semantics. The only > > sane way I can see for that, is using different file terminations. > > I.e. p7, pl7, pm7, t7. > > > > And when perl 8 comes out, you can switch to p8, pl8, etc. > > This would be an odd suggestion. > > I believe the main motivation for people saying they don't want to > "use v7" is precisely to avoid having to update to "use v8" and so on > in the future; having to chase the latest-and-greatest by making a > single character change to their code every decade or so. Personally I do not see that or pleasing those people as the reason for doing it. I see it as simply providing a new answer to what version perl is expecting when it starts parsing. Eg, all the stuff "above" the use statement. As long as the rule is "perl 5" variant, we have a problem that anyone create a document that is a mix of a 5 and something else. We want to eventually ditch the perl 5 variant, and move to a saner perl 7 or 8 variant, which means that ast some point we want the parser to not know about 5 AT ALL, except when it throws exceptions. Making the rule be "the parser starts out expecting perl 5" simply does not make sense, for *any* version. Making the rule be "the parser starts out expecting perl $Latest" does. The people that use this to get the latest version are just making their lives difficult. Nobody sane should do it on purpose. cheers, Yves -- perl -Mre=debug -e "/just|another|perl|hacker/"Thread Previous | Thread Next