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Date: Thu, 19 Mar 2009 11:48:06 -0700
From: David Rothenberger <daveroth AT acm DOT org>
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Subject: Re: Q: Is anybody here using the CYGWIN=codepage:oem setting?
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On 3/19/2009 11:13 AM, Corinna Vinschen wrote:
> On Mar 19 10:33, David Rothenberger wrote:
>> On 3/19/2009 6:09 AM, Corinna Vinschen wrote:
>>> If you've set $LANG to, say, "en_US.UTF-8", Cygwin would use the UTF-8
>>> charset *iff* the application switched the codepage by calling something
>>> along the lines of `setlocale(LC_ALL, "");'.
>>> An application which does not call setlocale (which means, it's not
>>> native language aware anyway) would still use the default ANSI codepage.
>>
>> I ran into an issue yesterday where I was trying to "du -sh" a directory
>> that contained files whose names included UTF characters, I think.
>> Without CYGWIN=codepage:utf8, this failed. It worked fine when I added
>> CYGWIN=codepage:utf8.
> 
> Yes, sure.  As described in the User's Guide.  That's exactly what bugs
> me right now.  To get UTF-8 support you have to set LANG or LC_ALL or
> whatever, *and* CYGWIN=codepage:utf8.

In my specific case, I didn't need to set LANG or LC_ALL, just 
CYGWIN=codepage:utf8.

>> So my question is, will this work if codepage is dropped and I set LANG
>> to en_US.UTF-8? Is there anything in the Cygwin DLL itself that uses
>> codepage that might be valuable to enable even for applications that
>> aren't native language aware and don't call setlocale()?
> 
> Not exactly.  However, assuming you have a file using characters which
> are not in your current ANSI codeset, then you could only manipulate
> that file when setting LANG="xx_YY.UTF-8", and only in applications
> which call setlocale().

I have no idea whether du calls setlocale() or not. I think you're 
saying that today, with codepage:utf8, it is able to get sizes for files 
using non-ANSI characters, but if codepage is removed, it would not be 
able to do so unless it called setlocale(). Is that right?

-- 
David Rothenberger  ----  daveroth AT acm DOT org

The Abrams' Principle:
         The shortest distance between two points is off the wall.


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