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This queue is for tickets about the IO-Prompt CPAN distribution.

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The Basics
Id: 36221
Status: new
Priority: 0/
Queue: IO-Prompt

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Owner: Nobody in particular
Requestors: Rafael.Barros [...] locaweb.com.br
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Bug Information
Severity: (no value)
Broken in: (no value)
Fixed in: (no value)



Subject: Possible Bug
Date: Tue, 27 May 2008 16:07:09 -0300
To: <bug-IO-Prompt [...] rt.cpan.org>
From: "Rafael Barros" <Rafael.Barros [...] locaweb.com.br>
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Hello, I don't know if this is really a bug, but I have installed IO::Prompt on a Fedora 8 machine, and every call to prompt() with the -r option specified would trigger a warning: Use of uninitialized value in pattern match (m//) at /usr/lib/perl5/site_perl/5.8.8/IO/Prompt.pm line 91. the problem is shown when I try to execute the following code: prompt( "Some message: ", -r => { "put something here>" => qr/\w+/ }); I looked into the code to see what was happenning, and found out that the problem was in this segment of code, in the file mentioned above: @data = map { $flags_alias{$_} || $_ } @data; for (my $i = 0 ; $i < @data ; $i++) { local *_ = \($data[$i]); if (ref eq 'HASH') { splice @data, $i + 1, 0, %$_; } the problem is that, when splice is called in -r, two arguments of @data are removed from the array. If this is the last argument, the array becomes empty and $_ gets the value undef in the next iteration. When the code does ref eq 'HASH' again, the warning is sent. I think that only changing the if clause to be defined $_ and ref eq 'HASH' would resolve the problem. Ah, my version of IO::Prompt is 0.99.4. My Fedora has the kernel 2.6.24.7-92.fc8 and my perl is 5.8.8. Thanks, Rafael Adson Barbosa Barros


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