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rendering of german umlauts ü and ß #3408

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opened 2026-01-30 23:20:38 +00:00 by claunia · 4 comments
claunia commented 2026-01-30 23:20:38 +00:00
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Originally created by @jeffrson on GitHub (Aug 14, 2019).

Environment

Windows build number: 10.0.18362.0
Windows Terminal version (if applicable): 0.3.2171.0

Steps to reproduce

ping www.github.com with german localization

Expected behavior

just like in old cmd:
image

Actual behavior

image

As it seems, you could also just type the (small) 'ü' and the 'ß' or copy it from editor and get the same margins. It looks like those letters are composed from two chars: moving the cursor through the line shows this. When I edit such line (backspace) or press escape (in powershell), some chars remain at the (former) right side of the text.

For capital 'Ü', ä, Ä, ö, Ö the behaviour appears to be correct.

Originally created by @jeffrson on GitHub (Aug 14, 2019). # Environment ```none Windows build number: 10.0.18362.0 Windows Terminal version (if applicable): 0.3.2171.0 ``` # Steps to reproduce `ping www.github.com` with german localization # Expected behavior just like in old cmd: ![image](https://user-images.githubusercontent.com/9551280/63011096-e8f8e980-be87-11e9-8a11-a9e09f59777f.png) # Actual behavior ![image](https://user-images.githubusercontent.com/9551280/63011185-16de2e00-be88-11e9-9c72-c6031e83468e.png) As it seems, you could also just type the (small) 'ü' and the 'ß' or copy it from editor and get the same margins. It looks like those letters are composed from two chars: moving the cursor through the line shows this. When I edit such line (backspace) or press escape (in powershell), some chars remain at the (former) right side of the text. For capital 'Ü', ä, Ä, ö, Ö the behaviour appears to be correct.
claunia added the Needs-TriageResolution-Duplicate labels 2026-01-30 23:20:38 +00:00
claunia commented 2026-01-30 23:20:39 +00:00
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@j4james commented on GitHub (Aug 14, 2019):

I think you're right about this being two characters. If I use a precomposed u-with-diaeresis character then I don't get this problem. You have to be using a combining character for the diaeresis to get the weird spacing.

In a WT PowerShell window, compare this:

"uu$([char]0x0308)uu"

with this:

"u$([char]0xFC)uu"

image

I think this is a known problem - @DHowett-MSFT talks about it in issue #2003 - although I'm not sure that particular issue is reporting the same thing.

As for the ß character, I don't see anything wrong with that, but whatever you're seeing could be a font specific problem. In that case, it might be related to issue #2066.

@j4james commented on GitHub (Aug 14, 2019): I think you're right about this being two characters. If I use a precomposed u-with-diaeresis character then I don't get this problem. You have to be using a combining character for the diaeresis to get the weird spacing. In a WT PowerShell window, compare this: "uu$([char]0x0308)uu" with this: "u$([char]0xFC)uu" ![image](https://user-images.githubusercontent.com/4181424/63039244-cd5b0680-beba-11e9-84e2-343a39c1ef00.png) I think this is a known problem - @DHowett-MSFT talks about it in issue [#2003](https://github.com/microsoft/terminal/issues/2003#issuecomment-513420922) - although I'm not sure that particular issue is reporting the same thing. As for the ß character, I don't see anything wrong with that, but whatever you're seeing could be a font specific problem. In that case, it might be related to issue #2066.
claunia commented 2026-01-30 23:20:39 +00:00
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@jeffrson commented on GitHub (Aug 14, 2019):

Thanks so far!

Both, 'ü' and 'ß', behave alike for me.

I too was thinking about font issue (though it seems strange, that it should make to chars out of one). I tried to change the font (I ususally have "Input Mono"), but the margin did not disappear. However, when I start the terminal while the font is "Consolas", the problem seems to vanish?!
(at least at my home PC now)

@jeffrson commented on GitHub (Aug 14, 2019): Thanks so far! Both, 'ü' and 'ß', behave alike for me. I too was thinking about font issue (though it seems strange, that it should make to chars out of one). I tried to change the font (I ususally have "Input Mono"), but the margin did not disappear. However, when I start the terminal while the font is "Consolas", the problem seems to vanish?! (at least at my home PC now)
claunia commented 2026-01-30 23:20:39 +00:00
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@DHowett-MSFT commented on GitHub (Aug 14, 2019):

Yeah, if it changes based on what font is in use that'll be fixed when we think more about #2066.

@DHowett-MSFT commented on GitHub (Aug 14, 2019): Yeah, if it changes based on what font is in use that'll be fixed when we think more about #2066.
claunia commented 2026-01-30 23:20:40 +00:00
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@DHowett-MSFT commented on GitHub (Aug 16, 2019):

Closing in favor of those issues. If it's a combining character, 2003. If not, 2066.

@DHowett-MSFT commented on GitHub (Aug 16, 2019): Closing in favor of those issues. If it's a combining character, 2003. If not, 2066.
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