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

[Steve Clarke]

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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>> MacRuby-devel at lists.macosforge.org
>> http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
>> 
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