Misplaced diacritics in Noto Serif Kannada: ಜಾ಼ಕಿರ್

[brawer]

Noto Serif Kannada seems to mis-place the diacritics when rendering ಜಾ಼ಕಿರ್ :

But with Noto Sans Kannada, the same string seems fine:

Both samples rendered with HarfBuzz 1.4.4. This was originally reported by @MayuraVerma as unicode-org/text-rendering-tests#21, but this smells more like a bug with Noto Serif Kannada. @marekjez86, can you also add a test case to https://github.com/googlei18n/noto-source/tree/master/test/Kannada ?

[sridatta1]

This is because in the text 'ಜಾ಼ಕಿರ್' nukta is after the vowel sign.The correct sequence/input is 'ಜ಼ಾಕಿರ್', where nukta should be after ja, this renders properly

[MayuraVerma]

@sridatta1
This may be the case.

I found a similar issue with typing word Rank in Kannada. harfbuzz/harfbuzz#341

But how do we stop the users from using the reverse sequence? I am asking for suggestion.

Btw, this reverse sequence is supported in Google Noto Sans Kannada and Tunga.
So, a user when using these above fonts, doesn't find issue typing it but a user reading it in a different font will find issues!

We need some concerted effort here wrt Kannada and Unicode.

Tunga font(doesn't have issue) and Nirmala UI(has same problem)

No issue in Chrome and Windows 7 (I am not sure what font it is using here).

[MayuraVerma]

font issue not shaping engine

harfbuzz/harfbuzz#439

[MayuraVerma]

This is resolved.
we can close this issue.