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Postings from March 2016
On Thu, Mar 10, 2016 at 04:10:02AM -0800, Ulrich Windl wrote:
> # New Ticket Created by "Ulrich Windl"
> # Please include the string: [perl #127684]
> # in the subject line of all future correspondence about this issue.
> # <URL: https://rt.perl.org/Ticket/Display.html?id=127684 >
>
>
> Hi!
>
> While writing a program for perl-5.10, I wondered whether the is an AND-equivalent for '//' for a closure like
> sub {
> my $hi = $header_i{(shift)} ??? return $hi;
> die;
> };
>
> Where '???' is the operator that doesn't exist.
> Thus I wondered why the perl gurus didn't choose '|||' instead of '//'; then '&&&' would be just the natural thing for the AND-variant.
> Did I overlook something that would have prevented use of those operators?
Perl has wasted years [1] of bike-shedding over the spelling of the defined-or
operator [2], before actually implementing it -- let's not redo that.
[1] '|||' was floating around on IRC at least as early as 1997. '//' came
to live in 5.10, which was released near the end of 2007.
[2] I think the name was settled by Larry invoking rule 1, but I may be
mistaken.
Abigail
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