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Postings from June 2013
On Sun Feb 03 05:45:38 2013, jkeenan wrote: > On Sun Jan 27 17:42:43 2013, jkeenan wrote: > > On Tue Jan 10 13:42:33 2012, sprout wrote: > > > On Sun Nov 16 09:10:38 2003, rafael wrote: > > > > James Jurach (via RT) wrote: > > > > > > > > > > $ perl -we '%a=(a=>"b"); print((sort CORE::keys(%a)),"\n")' > > > > > Undefined subroutine in sort at -e line 1. > > > > > > > > > > $ perl -we '%a=(a=>"b"); print((sort keys(%a)),"\n")' > > > > > a > > > > > > > > This is due to two facts : > > > > > > > > - perl will parse "sort foo(...)" and "sort(foo ...)" as "sort foo > ..." > > > > In other words, it doesn't take the parens into account > > > > - perl parses CORE::keyword as a subroutine, not as the corresponding > > > > keyword. > > > > > > > > Fixing this would probably break backward incompatibility in > > > > undesirable ways. > > > > > > How would that break compatibility? Who is currently putting custom > > > subroutines in the CORE:: namespace? > > > > > > > There's been no correspondence in this ticket for a year. Reviewing > > this older ticket tonight, I don't see a strong case that there's a bug > > in the source code which needs fixing. > > > > Anyone disagree? If not, I will close the ticket in seven days and am > > taking it for that purpose. > > > > No one spoke up to argue for the existence of a real bug. Hence, I am > closing this ticket as per schedule. Marking ticket Rejected. Actually, I think this *is* a bug, as CORE:: is supposed to disambiguate and indicate a built-in keyword. sort CORE::lc($_) should therefore do the same thing as sort lc($_), and treat ‘CORE::lc’ as a keyword, rather than a sort sub name. require happens to do the same thing as sort. I consider this a bug, too (the second one-liner should behave the same as the first): $ ./perl -Ilib -e 'require lc "FOO.pl"' Can't locate foo.pl in @INC (@INC contains: lib /usr/local/lib/perl5/site_perl/5.19.1/darwin-2level /usr/local/lib/perl5/site_perl/5.19.1 /usr/local/lib/perl5/5.19.1/darwin-2level /usr/local/lib/perl5/5.19.1 .) at -e line 1. $ ./perl -Ilib -e 'require CORE::lc "FOO.pl"' String found where operator expected at -e line 1, near "require CORE::lc "FOO.pl"" (Do you need to predeclare require?) syntax error at -e line 1, near "require CORE::lc "FOO.pl"" Execution of -e aborted due to compilation errors. Fixing this is trivial. Are there any objectors? -- Father Chrysostomos --- via perlbug: queue: perl5 status: rejected https://rt.perl.org:443/rt3/Ticket/Display.html?id=24482Thread Previous | Thread Next