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Re^3: Replacment for Data::Diver due missing license

by MidLifeXis (Monsignor)
on Aug 08, 2013 at 12:43 UTC ( #1048563=note: print w/replies, xml ) Need Help??


in reply to Re^2: Replacment for Data::Diver due missing license
in thread Replacment for Data::Diver due missing license

I have included this comment on your pull request as well, but it would probably be a good thing to check out the meta-spec as well and update the META.yml file.

--MidLifeXis

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Re^4: Replacment for Data::Diver due missing license
by werner (Acolyte) on Aug 09, 2013 at 09:26 UTC

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[Corion]: hippo: If you have a Unicode-wise Perl then likely some zero-width characters in $x would work. Maybe $x = "\x{200b}" works.
[Corion]: Hmm - no, that outputs 1 for me on 5.14 - perl -wle "my $x = qq(\x{200b}); warn $x; warn length $x"
[hippo]: Smart - I'll give that a go. Thanks.
[hippo]: Ah
[Corion]: But maybe there is some other Unicode string that will be true but have a zero width
[hippo]: For explanation, I've seen this construct in someone else's code (no names, no pack drill) and couldn't think of a situation to trigger it.
[Corion]: You'll have to look somewhere esoteric for that. Maybe some tied variable or special dualvar can also trigger that. But it's certainly not a common occurrence
[Corion]: And on 5.20, the following also outputs no find:perl -wle 'for my $x ("\x{2000}".."\ x{1fffff}") { if( $x && ! length $x ) { warn qq(<$x>); warn length $x; die } }'
[Corion]: (this time on Unix)
[hippo]: Understood. I'll have to go through the code and see if it's doing anything fancy with ties, dual-vars or non-scalars. In the end, it's probably a bug though.

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