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Postings from December 2008
2008/12/6 Abigail <abigail@abigail.be>:
> On Sat, Dec 06, 2008 at 12:55:58AM +0000, Ben Morrow wrote:
>>
>>
>> If these changes were made 'feature's instead, all people wanting new
>> behaviour would have to do is insert
>>
>> use 5.012;
>
>
> We went over this some time ago as well. Then it was agreed upon
> that 'use 5.XXX' should not mean anything more than "hey, compiler,
> my code doesn't use any identifiers that may clash with new keywords,
> so feel free to consider them keywords". It most definitely shouldn't
> change the meaning of constructs.
I agree. See feature's manpage:
=head1 NAME
feature - Perl pragma to enable new syntactic features
=head1 DESCRIPTION
It is usually impossible to add new syntax to Perl without breaking
some existing programs. This pragma provides a way to minimize that
risk. New syntactic constructs can be enabled by C<use feature 'foo'>,
and will be parsed only when the appropriate feature pragma is in
scope.
=cut
So it's explicitly stated that feature.pm is for new syntax.
That means that we could use it to enable \o{...} (although I don't
see a necessity), but not for changing existing syntax.
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