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bug#23934: 25.1.50; Incorrect rendering of cyrillic text on OS X
From: |
Alan Third |
Subject: |
bug#23934: 25.1.50; Incorrect rendering of cyrillic text on OS X |
Date: |
Sun, 10 Jul 2016 18:09:02 +0100 |
User-agent: |
Mutt/1.5.24 (2015-08-30) |
On Sun, Jul 10, 2016 at 07:52:57PM +0300, Eli Zaretskii wrote:
> > Date: Sun, 10 Jul 2016 17:28:02 +0100
> > From: Alan Third <alan@idiocy.org>
> > Cc: 23934@debbugs.gnu.org
> >
> > Yes, Emacs seems to think that the composed character takes up no
> > space. This may be no help whatsoever, but I've attached another image
> > showing a cyrillic a with acute alongside the latin version. The latin
> > one is not, afaik, composed, because I don't know how to do that.
>
> The Latin character is composed, because Emacs knows how to do that.
> You can verify with "C-u C-x =".
>
> Can you tell what does window-text-pixel-size return for the а́ part of
> the text, both with Menlo and with Monaco?
Using (window-text-pixel-size nil 3 5):
Menlo: (0 . 14)
Monaco: (7 . 16)
> > I don't know how to check whether the font supports it.
> > Here's what describe-char says:
> >
> > position: 148 of 234 (63%), column: 2
> > character: а (displayed as а) (codepoint 1072, #o2060, #x430)
> > preferred charset: cyrillic-iso8859-5 (Right-Hand Part of ISO/IEC
> > 8859/5 (Latin/Cyrillic): ISO-IR-144)
> > code point in charset: 0x50
> > script: cyrillic
> > syntax: w which means: word
> > category: .:Base, L:Left-to-right (strong), Y:2-byte Cyrillic,
> > c:Chinese, h:Korean, j:Japanese, y:Cyrillic
> > to input: type "C-x 8 RET 430" or "C-x 8 RET CYRILLIC SMALL
> > LETTER A"
> > buffer code: #xD0 #xB0
> > file code: #xD0 #xB0 (encoded by coding system utf-8-unix)
> > display: composed to form "а́" (see below)
> >
> > Composed with the following character(s) "́" using this font:
> > mac-ct:-*-Menlo-normal-normal-normal-*-12-*-*-*-m-0-iso10646-1
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> The above line says that Menlo does have the glyph for the accent.
> Emacs will not compose characters from different fonts.
>
> > by these glyphs:
> > [0 1 1072 870 7 0 7 7 1 nil]
> > [0 1 769 646 7 2 6 10 -7 [-8 -1 -8]]
>
> Can you show the corresponding data when you use the Monaco font?
position: 3 of 7 (29%), column: 2
character: а (displayed as а) (codepoint 1072, #o2060, #x430)
preferred charset: unicode (Unicode (ISO10646))
code point in charset: 0x0430
script: cyrillic
syntax: w which means: word
category: .:Base, L:Left-to-right (strong), Y:2-byte Cyrillic,
c:Chinese, h:Korean, j:Japanese, y:Cyrillic
to input: type "C-x 8 RET 430" or "C-x 8 RET CYRILLIC SMALL LETTER
A"
buffer code: #xD0 #xB0
file code: #xD0 #xB0 (encoded by coding system utf-8-unix)
display: composed to form "а́" (see below)
Composed with the following character(s) "́" using this font:
mac-ct:-*-Monaco-normal-normal-normal-*-12-*-*-*-m-0-iso10646-1
by these glyphs:
[0 1 1072 449 7 0 7 7 1 nil]
[0 1 769 375 0 -6 -1 10 -7 nil]
Character code properties: customize what to show
name: CYRILLIC SMALL LETTER A
general-category: Ll (Letter, Lowercase)
decomposition: (1072) ('а')
--
Alan Third
bug#23934: 25.1.50; Incorrect rendering of cyrillic text on OS X, YAMAMOTO Mitsuharu, 2016/07/11