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Postings from July 2009
Reply-To: p5p
In-Reply-To: <E1MTjFB-0000ZY-1y@camel.booking.com>
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On Wed, Jul 22, 2009 at 11:20:57PM +0200, David Golden wrote:
> In perl.git, the branch blead has been updated
>
> <http://perl5.git.perl.org/perl.git/commitdiff/95266a888819065bd20ca221321a246ac2a8bb30?hp=76856ab86113673b1659606f0ae6c0525f6374b1>
>
> - Log -----------------------------------------------------------------
> commit 95266a888819065bd20ca221321a246ac2a8bb30
> Author: David Golden <dagolden@cpan.org>
> Date: Wed Jul 22 17:20:56 2009 -0400
>
> v-strings are not deprecated
>
> With version objects, we need them for use MODULE VERSION syntax. This
> patch removes the deprecation note.
> =head3 Version Strings
> X<version string> X<vstring> X<v-string>
>
> -B<Note:> Version Strings (v-strings) have been deprecated. They will
> -be removed in some future release after Perl 5.8.1. The marginal
> -benefits of v-strings were greatly outweighed by the potential for
> -Surprise and Confusion.
> -
> A literal of the form C<v1.20.300.4000> is parsed as a string composed
> of characters with the specified ordinals. This form, known as
> v-strings, provides an alternative, more readable way to construct
and the rest of that paragraph is key:
strings, rather than use the somewhat less readable interpolation form
C<"\x{1}\x{14}\x{12c}\x{fa0}">. This is useful for representing
Unicode strings, and for comparing version "numbers" using the string
comparison operators, C<cmp>, C<gt>, C<lt> etc. If there are two or
more dots in the literal, the leading C<v> may be omitted.
I think that we *should* still be deprecating the form without the leading v.
That's the ambiguous form, the silent change.
What's a good wording to make that clear?
Does anyone want to figure out a patch for blead that makes the omitted-v
form issue a deprecation warning?
Nicholas Clark
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