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bug#15273: 24.3.50; Combining character sequences are displayed weirdly


From: Jan Djärv
Subject: bug#15273: 24.3.50; Combining character sequences are displayed weirdly
Date: Sat, 7 Sep 2013 10:47:05 +0200

7 sep 2013 kl. 10:27 skrev Jan Djärv <address@hidden>:

> Hello.
> 
> 7 sep 2013 kl. 10:10 skrev Eli Zaretskii <address@hidden>:
> 
>> To test this
>> hypothesis Someone(TM) should show the character metrics using some
>> external tool, and compare that with what nsfont.m calculates.  Or,
>> alternatively, show that exactly the same font does produce a correct
>> display on another platform; then we could compare the two font
>> back-ends we have for these platforms.
> 
> nsfont.m has problems with composition, there is even comments about this in 
> the code.
> But from what I see on X11 and what you reported from W32, no other platform 
> does produce the correct result (i.e. the ! and the triangle in the same 
> place), so comparing to those backends doesn't help.

FWIW, I tested the mac port that has another font driver, and it doesn't work 
correctly either.  It does not find a good font for the triangle and only 
displays an empty square.  No composition happens.

        Jan D.







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