[Rd] Setting LC_CTYPE=en_US.UTF-8 failed

[Tomas Kalibera]

On 6/6/19 3:24 PM, Duncan Murdoch wrote:
> On 06/06/2019 7:28 a.m., Duncan Murdoch wrote:
>> On 06/06/2019 6:22 a.m., Tomas Kalibera wrote:
>>> On 6/5/19 3:49 AM, Steven Penny wrote:
>>>> Using this in my "~/.profile":
>>>>
>>>>      export LC_ALL=en_US.UTF-8
>>>>
>>>> Yields this:
>>>>
>>>>      $ Rscript -e 'print(9)'
>>>>      During startup - Warning message:
>>>>      Setting LC_CTYPE=en_US.UTF-8 failed
>>>>      [1] 9
>>>>
>>>> This is confusing as the exact same environment works fine with other
>>>> languages:
>>>>
>>>>      $ python3 -c 'print(9)'
>>>>      9
>>>>
>>>>      $ ruby -e 'puts 9'
>>>>      9
>>>
>>> The locale is probably not available on your system, please
>>> install/generate it.
>>
>> I think Steven is running the Windows build, not a POSIX build, so
>> that's not a legal value.  He could try the Cygwin build, but I think it
>> has other problems, and isn't supported by R Core.  As far as I know
>> there is no Windows locale that fully supports UTF-8.
>>
>
> The Windows name for a UTF-8 locale is supposed to be en_US.65001 (see
> <https://docs.microsoft.com/en-us/cpp/c-runtime-library/locale-names-languages-and-country-region-strings?view=vs-2019> 
> if it hasn't disappeared by the time you read this).  However, when I 
> tried that a few years ago, it didn't work.  Maybe it does now.

Yes, it is 65001 but it still cannot be used as setlocale() Windows 
locale (in LC_CTYPE), and hence R on Windows cannot use UTF-8 as native 
encoding.

Tomas

>
> Duncan Murdoch