bug-gnu-emacs
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

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: Thu, 5 Sep 2013 19:29:24 +0200

Hi.

5 sep 2013 kl. 19:12 skrev Eli Zaretskii <address@hidden>:

>> From: Jan Djärv <address@hidden>
>> Date: Thu, 5 Sep 2013 18:48:43 +0200
>> Cc: address@hidden
>> 
>> 
>>> emacs -Q
>>> !                      ;; input an exclamation mark (#x21)
>>> C-x 8 RET 2 0 E 4 RET  ;; COMBINING ENCLOSING UPWARD POINTING TRIANGLE
>>> RET                    ;; Newline
>>> C-x 8 2 6 A 0 RET      ;; WARNING SIGN
>>> 
>> 
>> I assume you mean C-x 8 RET 2 6 A 0 RET.
>> 
>>> I tried many fonts, but all results look weird (the first line is
>>> incomplete and too large).
>>> 
>>> (I haven't tried it on other platforms yet, so I'm not sure whether it's
>>> NS-port specific.)
>> 
>> On Fedora 19, the first does not combine, I just get ! followed by an upward 
>> pointing triangle.
>> The second is very small, see screen shot.
>> 
>> The NS one looks better, but when moving the cursor over the first row, it 
>> redraws funny.  And metrics are off, the distance between the first triangle 
>> and the aaa to the right is actually only one space.  The aaa to the left is 
>> also followed by a space, but there the distance is too short, and the 
>> source of the redraw error.
>> 
>> W32 anyone?
> 
> On w32, the Uniscribe font driver does not compose these two
> characters.  So I guess this composition is done by the driver used by
> NS, and perhaps the composition information Emacs gets is incorrect.
> 
> Once again, please show the full output of "C-u C-x =" on the composed
> character, the pixel-level data of the composition shown there will
> probably tell us what is wrong.


I don't know if it says anything.  In Emacs the square is actually a triangle, 
displayed too far to the left, i.e. covering half the letter to the left.  The 
mailer I use can't display it.

             position: 4 of 4 (75%), column: 3
            character: ⃤ (displayed as ⃤) (codepoint 8420, #o20344, #x20e4)
    preferred charset: unicode (Unicode (ISO10646))
code point in charset: 0x20E4
               script: symbol
               syntax: w        which means: word
             to input: type "C-x 8 RET HEX-CODEPOINT" or "C-x 8 RET NAME"
          buffer code: #xE2 #x83 #xA4
            file code: #xE2 #x83 #xA4 (encoded by coding system utf-8-unix)
              display: by this font (glyph code)
    nil:-apple-STIXGeneral-medium-normal-normal-*-12-*-*-*-p-0-iso10646-1 
(#x359)

Character code properties: customize what to show
  name: COMBINING ENCLOSING UPWARD POINTING TRIANGLE
  general-category: Me (Mark, Enclosing)
  decomposition: (8420) ('⃤')

There are text properties here:
  fontified            t

        Jan D.






reply via email to

[Prev in Thread] Current Thread [Next in Thread]