Front page | perl.perl5.porters |
Postings from August 2011
On 28 August 2011 21:49, Father Chrysostomos <perlbug-followup@perl.org> wrote:
> $ perl5.14.0 -Xle 'for(1,2) { print "a" =~ ?a? }'
> 1
>
> $ perl5.14.0 -Xle 'for(1,2) { print "a" =~ ?a?; reset "" }'
> 1
> 1
>
> The documentation for reset() says that it resets ?? matches if there is no
> argument. It says nothing about an empty string. If anyone is using
> reset($string), and if $string is computer-generated, this could cause nasty
> surprises.
>
> Even though it’s generally better to make docs conform to longstanding
> behaviour, too strict a stand would prevent any bugs from being fixed. And
> this one really does look like a bug to me.
My understanding of the docs is that reset *always* resets the ?? matches,
and also any package variable beginning with the given list of characters.
So the current behaviour matches the docs.
On a related note, maybe it's time to deprecate arguments to reset ?
--
It is always possible to aglutenate multiple separate problems into a single
complex interdependent solution. In most cases this is a bad idea.
-- RFC 1925
Thread Previous