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Date: Sat, 7 Oct 2023 14:42:33 -0600
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Subject: Re: half- and full-width CJK characters
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From: Brian Inglis via Cygwin <cygwin AT cygwin DOT com>
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On 2023-10-07 08:27, Thomas Wolff via Cygwin wrote:
> 
> 
> Am 07/10/2023 um 14:47 schrieb Dr Bean via Cygwin:
>> On Sat, 07 Oct 2023, Thomas Wolff via Cygwin wrote:
>>
>>> Am 07/10/2023 um 10:23 schrieb Dr Bean via Cygwin:
>>>> I am memorializing this for my own benefit here.
>>>>
>>>> Benefitting fromhttps://eng-blog.iij.ad.jp/archives/12576
>>>> I see that I don't need to change any envars, but only fonts.
>>>>
>>>> The default Lucida Console font renders CJK as half-width chars, on
>>>> this PC with 3 Windows language packs.
>>>>
>>>> With MS ゴシック, Japanese かな and 漢字 look good.
>>>> Traditional Chinese ㄅㄛˋㄆㄛˋㄇㄛˋand 漢字 look good.
>>>> Korean 한글 doesn't look good. It looks like they're
>>>> half-width characters drawn with the space for one full-width
>>>> character.
>>>>
>>>> I wonder if this is a problem with the Korean language pack.
>>>>
>>> Please describe the context of your observations (preferably a test case);
>>> do you have an issue inside the Cygwin Terminal?
>>> Thomas
>> All mintty contexts. Viewing this email in an SSH session in screen
>> to a remote tmux session on freeshell.org, writing this reply in vim,
>> and changing the mintty font option from ,
>>
>> Font=Lucida Console
>> to
>> Font=ＭＳ ゴシック
>>
>> the above CJK characters change appearance from half-width to full-width,
>> except for the Korean 한글, which doesn't change appearance.
>>
>> Attaching to the tmux session on freeshell, sshing in from my
>> phone with Termius, the characters don't change, of course.
>>
>> I'm not suggesting there's anything wrong with the default mintty font
>> option of Lucida Console. It looks good.
>>
>> I am on the lookout for a good font for viewing korean 한글, so I
>> don't have to magnify the screen to read it.
>>
>> By the way, thanks for mintty. It is a joy to use.
>>
> Judging by the name (which has Katakana characters), ＭＳ ゴシック is a Japanese 
> font, so maybe it simply does not have any special Korean ideographs and the 
> Windows font fallback mechanism substitutes some unsuitable font.
> You should try to find a specific Korean font, I doubt ＭＳ ゴシック was 
> provided by the Korean language pack. I could try to reproduce the issue if you 
> tell me which font it is. As far as I know, the CJK names are only used with 
> respective language packs installed, otherwise the same font can be addresses by 
> an alternative name. You could also look up the font filename (in the Windows 
> Fonts folder) to identify it. Thomas

Package fontconfig utilities fc-list, fc-match, fc-query are your friends here 
to match by character set ranges or language codes and give you the file or font 
names: here I have installed all non-MS Windows fonts as symlinks under 
/usr/share/fonts/windows/ e.g.

$ fc-list :charset=ac00-d7a3 | sort -t: -k2 -u | sort
/usr/share/fonts/microsoft/malgun.ttf: Malgun Gothic,맑은 고딕:style=Regular
/usr/share/fonts/microsoft/malgunbd.ttf: Malgun Gothic,맑은 고딕:style=Bold
/usr/share/fonts/microsoft/malgunsl.ttf: Malgun Gothic,맑은 고딕,Malgun Gothic 
Semilight,맑은 고딕 Semilight:style=Semilight,Regular
/usr/share/fonts/opentype/unifont/unifont_jp.otf: Unifont\-JP:style=Regular
/usr/share/fonts/windows/code2000.ttf: 
Code2000:style=Regular,Normal,obyčejné,Standard,Κανονικά,Normaali,Normál,Normale,Standaard,Normalny,Обычный,Normalan,Normálne,Navadno,thường,Arrunta
/usr/share/fonts/windows/LastResort-Regular.ttf: Last Resort:style=Regular
/usr/share/fonts/windows/NanumGothic_Coding.ttf: 
NanumGothic_Coding,나눔고딕_코딩:style=Regular
/usr/share/fonts/windows/NanumGothic_Coding_Bold.ttf: 
NanumGothic_Coding,나눔고딕_코딩:style=Bold
/usr/share/fonts/windows/NanumGothicCoding-Bold.ttf: NanumGothicCoding:style=Bold
/usr/share/fonts/windows/NanumGothicCoding-Regular.ttf: 
NanumGothicCoding:style=Regular
/usr/share/fonts/windows/UnicodeBMPFallback.ttf: Unicode BMP Fallback 
SIL:style=Regular
/usr/share/fonts/windows/unifont.otf: Unifont:style=Regular
/usr/share/fonts/windows/unifont_sample-12.1.03.ttf: Unifont Sample:style=Medium
$ fc-list :lang=ko | sort -t: -k2 -u | sort
/usr/share/fonts/microsoft/malgun.ttf: Malgun Gothic,맑은 고딕:style=Regular
/usr/share/fonts/microsoft/malgunbd.ttf: Malgun Gothic,맑은 고딕:style=Bold
/usr/share/fonts/microsoft/malgunsl.ttf: Malgun Gothic,맑은 고딕,Malgun Gothic 
Semilight,맑은 고딕 Semilight:style=Semilight,Regular
/usr/share/fonts/opentype/unifont/unifont_jp.otf: Unifont\-JP:style=Regular
/usr/share/fonts/windows/code2000.ttf: 
Code2000:style=Regular,Normal,obyčejné,Standard,Κανονικά,Normaali,Normál,Normale,Standaard,Normalny,Обычный,Normalan,Normálne,Navadno,thường,Arrunta
/usr/share/fonts/windows/LastResort-Regular.ttf: Last Resort:style=Regular
/usr/share/fonts/windows/NanumGothic_Coding.ttf: 
NanumGothic_Coding,나눔고딕_코딩:style=Regular
/usr/share/fonts/windows/NanumGothic_Coding_Bold.ttf: 
NanumGothic_Coding,나눔고딕_코딩:style=Bold
/usr/share/fonts/windows/NanumGothicCoding-Bold.ttf: NanumGothicCoding:style=Bold
/usr/share/fonts/windows/NanumGothicCoding-Regular.ttf: 
NanumGothicCoding:style=Regular
/usr/share/fonts/windows/UnicodeBMPFallback.ttf: Unicode BMP Fallback 
SIL:style=Regular
/usr/share/fonts/windows/unifont.otf: Unifont:style=Regular
/usr/share/fonts/windows/unifont_sample-12.1.03.ttf: Unifont Sample:style=Medium

-- 
Take care. Thanks, Brian Inglis              Calgary, Alberta, Canada

La perfection est atteinte                   Perfection is achieved
non pas lorsqu'il n'y a plus rien à ajouter  not when there is no more to add
mais lorsqu'il n'y a plus rien à retirer     but when there is no more to cut
                                 -- Antoine de Saint-Exupéry

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