Placement of HEBREW MAQAF (diacritical)

[Amit Ramon <amit.ramon@gmail.com>]

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Hello,

The version of Emacs that I pulled and built two days ago doesn't
place the HEBREW PUNCTUATION MAQAF (05BE) in the right place. The
maqaf is like a dash and it should be placed between letters, but it
seems that now Emacs places it above the letter that precedes it. It
was working fine with the version that I built ~2 weeks ago. I'm
running Emacs on Debian Linux and X. I checked this with both Lucida
Sans and DejaVu Sans fonts. What also seems strange to me is that it
is not counted in the columns - what I mean is that the cursor column
position is not taking the maqaf into account - like it is not there.

I'm attaching two images of the same text - one inside Emacs and the
other in mlterm (that's a RTL-aware terminal emulator), both using the
same fonts. mlterm displays the maqaf correctly, but not Emacs. Also
attached is the text file that contains the text (mot.txt).

I'm also attaching the output of what-cursor-position, which again
looks strange to me since it talks about 'composing', which as far as
I understand should not occur in this case.

This problem occurs whether or not the bidi reordering is
active. Revision is 100853.

Thanks,

Amit

[-- Attachment #2: mot-emacs-24.png --]
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[-- Attachment #4: mot.txt --]
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מוט־קטן

[-- Attachment #5: tet-maqaf --]
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        character: ט (1496, #o2730, #x5d8)
preferred charset: unicode (Unicode (ISO10646))
       code point: 0x05D8
           syntax: w 	which means: word
         category: .:Base
         to input: type "y" with hebrew-lyx
      buffer code: #xD7 #x98
        file code: #xD7 #x98 (encoded by coding system utf-8-unix)
          display: composed to form "ט־" (see below)

Composed with the following character(s) "־" using this font:
  xft:-unknown-DejaVu Sans-normal-normal-normal-*-13-*-*-*-*-0-iso10646-1
by these glyphs:
  [0 1 1496 1324 8 1 7 7 0 nil]
  [0 1 1470 1308 5 0 5 8 -6 [-7 0 0]]

Character code properties: customize what to show
  name: HEBREW LETTER TET
  general-category: Lo (Letter, Other)

There are text properties here:
  fontified            t

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