[MacRuby-devel] macruby produces strings with encodings that differ from MRI

[Laurent Sansonetti]

Hi Steve,

It would be nice to know what exactly in ruby-mysql causes the
problem. If you can reduce the problem to a simple code snippet or
point us to the ruby-mysql source code it would be great.

Thanks
Laurent

On Sun, Sep 18, 2011 at 8:38 AM, Steve Clarke <steve at sclarkes.me.uk> wrote:
> Yes, looks like the same issue as ticket 742.  I did  look at tickets but failed to spot that.
>
> The comment on the ticket re only UTF-8 being required may be true - it certainly is for me.  Sadly the ruby-mysql gem works in such a way that the difference between MRI and macruby breaks it.
>
> Steve
>
> On 18 Sep 2011, at 06:07, Watson wrote:
>
>> Hi,
>>
>> Maybe related to http://www.macruby.org/trac/ticket/742.
>> MacRuby ignore magic-comment, and uses default encoding UTF8.
>>
>> Thanks.
>>
>> 2011/9/18 Steve Clarke <steve at sclarkes.me.uk>:
>>> Code
>>> ========
>>>
>>> ABC='ABC'
>>> puts "ABC[0] encoding is #{ABC[0].encoding}"
>>> puts "?\\xff encoding is #{?\xff.encoding}"
>>>
>>>
>>> Output
>>> ========
>>>
>>>
>>> MRI output
>>>
>>> ABC[0] encoding is US-ASCII
>>> ?\xff encoding is ASCII-8BIT
>>>
>>>
>>>
>>> macruby output
>>>
>>> ABC[0] encoding is UTF-8
>>> ?\xff encoding is UTF-8
>>>
>>>
>>> The encodings reported above did not seem to be effected by the encoding of the source file.  I tried both ASCII and UTF-8.
>>>
>>> When the same code is executed in (mac)irb the results are the same for macirb as they are for macruby.
>>> irb for MRI however produces UTF-8 strings in both cases! This seemed very odd but I'm fairly sure it's because I have an environment variable:
>>> LANG=GB.UTF-8
>>> When I changed to LANG=GB.US_ASCII irb for MRI rendered 'abc'[0] with US_ASCII encoding. macirb still used UTF-8.
>>>
>>> (I discovered this when trying to get ruby-mysql to work with macruby.  It doesn't work as-is but seems to work with a few mods that use force_encoding to make MRI and macruby produce the same outputs).
>>> I abandoned my earlier attempts to use postgres with macruby via the pg gem.  It failed regularly but in unpredictable ways associated, as far as I could tell, with memory management problems.
>>>
>>>
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>>>
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