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bug#20984: 25.0.50; Combining accents don't display properly in certain
From: |
Artur Malabarba |
Subject: |
bug#20984: 25.0.50; Combining accents don't display properly in certain fonts |
Date: |
Sun, 5 Jul 2015 17:42:45 +0100 |
2015-07-05 17:33 GMT+01:00 Eli Zaretskii <eliz@gnu.org>:
>> Date: Sun, 5 Jul 2015 17:24:32 +0100
>> From: Artur Malabarba <bruce.connor.am@gmail.com>
>>
>> Start emacs -Q then evaluate the following in the *scratch* (assuming
>> you have this font installed)
>>
>> (set-face-attribute 'default nil :font "SourceCodePro Medium")
>> (insert (format "a%c" 768))
>>
>> The result should look like "à", but instead, it looks like "a`" where
>> the letter "a" is actually distorted and shifted up (image attached).
>> The same happens with other combining symbols.
>
> Do both glyphs come from the same font, according to "C-u C-x ="? (I
> don't have that font installed to try that myself.)
>
> Emacs can only compose characters if their glyphs are covered by the
> same font.
Yes. Investigating the weird combination yields this on the description buffer:
Composed with the following character(s) "̀" using this font:
xft:-adobe-Source Code Pro-normal-normal-normal-*-13-*-*-*-m-0-iso10646-1
by these glyphs:
[0 1 0 626 8 1 6 8 -3 nil]
[0 1 0 734 0 1 5 11 -9 [0 0 0]]
And investigating the characters individually yields the same font for both
xft:-adobe-Source Code
Pro-normal-normal-normal-*-13-*-*-*-m-0-iso10646-1 (#x1C)
xft:-adobe-Source Code
Pro-normal-normal-normal-*-13-*-*-*-m-0-iso10646-1 (#x2DD)
Should I paste the full *help* buffer here?
- bug#20984: 25.0.50; Combining accents don't display properly in certain fonts, Artur Malabarba, 2015/07/05
- bug#20984: 25.0.50; Combining accents don't display properly in certain fonts, Eli Zaretskii, 2015/07/05
- bug#20984: 25.0.50; Combining accents don't display properly in certain fonts,
Artur Malabarba <=
- bug#20984: 25.0.50; Combining accents don't display properly in certain fonts, Eli Zaretskii, 2015/07/06
- bug#20984: 25.0.50; Combining accents don't display properly in certain fonts, handa, 2015/07/09
- bug#20984: 25.0.50; Combining accents don't display properly in certain fonts, Eli Zaretskii, 2015/07/09
- bug#20984: 25.0.50; Combining accents don't display properly in certain fonts, Artur Malabarba, 2015/07/09
- bug#20984: 25.0.50; Combining accents don't display properly in certain fonts, Eli Zaretskii, 2015/07/10
- bug#20984: 25.0.50; Combining accents don't display properly in certain fonts, Artur Malabarba, 2015/07/10