bug#6471: Arabic display by emacs -Q on HELLO

[David De La Harpe Golden]

On 19/06/10 23:16, David De La Harpe Golden wrote:

> Aside: HELLO looks distinctly odd around the arabic lines in emacs -Q
> but not with my normal config. Probably independent from the immediate
> scrolling issue and possibly font-dependent, I'll file a separate bug.


Yes, emacs -Q is picking this font:

xft:-unknown-Metal-normal-normal-normal-*-13-*-*-*-*-0-iso10646-1

from debian package ttf-arabeyes:

/usr/share/fonts/truetype/ttf-arabeyes/ae_Metal.ttf

and "emacs" this font (in accord with my default font customisation):

xft:-unknown-DejaVu Sans Mono-normal-normal-normal-*-15-*-*-*-m-0-iso10646-1


Actually, I suspect (not that I know arabic) both cases are displaying 
it incorrectly (not composed), but it looks particularly off with the 
former, with the character cell for the character taking up half the 
screen.  This might be partially a problem with the font in question.


[1]
character: ّ (1617, #o3121, #x651)
preferred charset: arabic-iso8859-6 (Right-Hand Part of ISO/IEC 8859/6 
(Latin/Arabic): ISO-IR-127)
       code point: 0x71
           syntax: w    which means: word
         category: b:Arabic
      buffer code: #xD9 #x91
        file code: ESC #x2C #x47 #x71 (encoded by coding system 
iso-2022-7bit-unix)
          display: by this font (glyph code)
    xft:-unknown-Metal-normal-normal-normal-*-13-*-*-*-*-0-iso10646-1 
(#x21C)

Character code properties: customize what to show
  name: ARABIC SHADDA
  old-name: ARABIC SHADDAH
  general-category: Mn (Mark, Nonspacing)

There are text properties here:
  charset              arabic-iso8859-6

emacs_q_hello_arabic.png
Description: PNG image

emacs_hello_arabic.png
Description: PNG image