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Date: Wed, 13 Aug 2025 23:23:18 +0200
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Subject: Re: mintty in Cygwin 3.6.4 cannot display the moon
To: cygwin AT cygwin DOT com
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From: Thomas Wolff via Cygwin <cygwin AT cygwin DOT com>
Reply-To: Thomas Wolff <towo AT towo DOT net>
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Am 13.08.2025 um 21:20 schrieb Dan Shelton via Cygwin:
> On Wed, 13 Aug 2025 at 21:06, Kevin Schnitzius via Cygwin
> <cygwin AT cygwin DOT com> wrote:
>> On Wed, Aug 13, 2025 at 11:15 AM Dan Shelton via Cygwin
>> <cygwin AT cygwin DOT com> wrote:
>>> Hello!
>>>
>>> mintty in Cygwin 3.6.4 cannot display the Unicode moon character:
It's a problem in cygwin 3.6.4 but mintty 3.7.9, released a few days 
ago, has a workaround for it, as long as you're running a UTF-8 locale.
Thomas

>>> my testcase:
>>> bash -c 'm="$(printf "\U0001f313")" ; echo "moon2" >"$m$m$m$m$m$m$m"'
>>> ls -l
>>>
>>> That should display a filename with los of Unicode moon characters,
>>> but instead some grey checkerbox is rendered. Windows Explorer shows
>>> this correctly.
>> eos:~/cygtest >ls
>> eos:~/cygtest >m="$(printf "\U0001f313")"
>> eos:~/cygtest >echo $m
>> \U0001F313
>> eos:~/cygtest >echo asdf > $m.txt
>> bash: \U0001F313.txt: Permission denied
>> eos:~/cygtest >echo asdf > $m$m
>> bash: \U0001F313\U0001F313: No such file or directory
>> eos:~/cygtest >echo asdf > "$m$m"
>> bash: \U0001F313\U0001F313: No such file or directory
>>
>> What are your locale and language environment set to?   (LC_CTYPE, LC_ALL, LANG)
> Windows 10 with UTF-8 locale
>
> Dan


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