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This queue is for tickets about the CHI CPAN distribution.

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The Basics
Id: 50359
Status: resolved
Priority: 0/
Queue: CHI

Owner: Nobody in particular
Requestors: alexandrfedorov [...]

Bug Information
Severity: Important
Broken in: 0.28
Fixed in: (no value)

Subject: Problem with unicode
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In example below, there is a error: error during cache set for namespace='Default', key='aa', size=1, expires='1d', cache='File': Wide character in syswrite at /usr/lib/perl5/site_perl/5.10.0/CHI/Driver/ line 105. perl -v: perl, v5.10.0 built for x86_64-linux-thread-multi Cache::Cache with such data works good. use 5.010; use CHI; my $cont = chr(400); my $cache = CHI->new( driver => 'File',root_dir=>'/tmp',on_set_error => 'die'); $cache->clear; my $key = 'aa'; say "cache of $key = ",$cache->get($key) // 'undefined'; $cache->set($key,$cont,'1 day'); say "cache of $key = ",$cache->get($key);
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I found a workaround, but i don't sure, how good it is. diff: 71c71,72 < --- Show quoted text
> use Encode; > Encode::_utf8_on($buf);
101a103,104 Show quoted text
> use Encode; > Encode::_utf8_off($data);
Subject: Re: [ #50359] Problem with unicode
Date: Mon, 12 Oct 2009 06:51:16 -0700
To: bug-CHI [...]
From: Jonathan Swartz <swartz [...]>
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Thanks for reporting this bug, Alexandr. You'll see in the test suite (lib/CHI/t/ line 99) that I punted on unicode keys and values because I wasn't sure how to handle them: # Several problems with trying to handle unicode keys and values. # * They generate 'Wide character in print' warnings when logging about the gets/sets # * Causes metadata packing to break # * Storable won't touch them # not sure how to handle these. Maybe there's no way. Even if we automatically # encoded all keys and values, what to do about complex values where wide strings # might be lurking? # 'utf8_partial' => "abc\x{263A}def", # 'utf8_all' => "\x{263A}\x{263B}\x{263C}", Unfortunately I'm fuzzier about unicode issues than I ought to be. If you can come up with a patch that allows the above tests to work, please submit it! Thanks Jon On Oct 9, 2009, at 6:31 AM, Alexandr Fedorov via RT wrote: Show quoted text
> Queue: CHI > Ticket <URL: > > > I found a workaround, but i don't sure, how good it is. > diff: > > 71c71,72 > < > ---
>> use Encode; >> Encode::_utf8_on($buf);
> 101a103,104
>> use Encode; >> Encode::_utf8_off($data);
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I has strenuously studied how Perl unicode works, and has come to a conclusion than perlunifaq explains all =) <i>When should I decode or encode? Whenever you're communicating text with anything that is external to your perl process, like a database, a text file, a socket, or another program. Even if the thing you're communicating with is also written in Perl.</i> I.e. you need add layer :utf8 to opening files within file-driver All tests that i tried works good with that.
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I've resolved issues with utf8 in keys and values in CHI 0.36. Let me know if this solution still does not solve your problem. Thx Jon

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