On 2/9/12 05:07, Khaled Hosny wrote:
On Sat, Sep 01, 2012 at 06:40:40PM -0400, Behdad Esfahbod wrote:
On 08/26/2012 07:15 PM, Khaled Hosny wrote:
Hi Behdad,
I just noticed that hamza above and below marks (U+0654, U+0655), are
reordered after Arabic vowel marks because they have much higher
combining classes, 230 and 222 (the "generic" combining class above and
below, respectively), which breaks mkmk positioning.
I tried to make a patch to handle them like the shadda, but I'm not sure
how safe it is with such generic combining classes.
Khaled,
Given that there's a few handfuls of Arabic marks with 220/230 ccc, can you
help me figure out what the expected behavior is, in respect to the main marks
and shadda? I can try to implement that after.
Ideally, I think hamza and madda should come first, then shadda, then
the vowel marks then everything else:
* hamzat and maddat: U+0653-U+0655, U+065F, U+0674, U+06E4
* shadda: U+0651
* vowel marks: U+064B-U+0650, U+0652, U+0656-U+065E, U+08F0-U+08F2
The ordering of madda and vowel marks was raised on the Unicode list in
July 2011, and at that point the responses indicated that madda should
*follow* vowel marks; see
http://www.unicode.org/mail-arch/unicode-ml/y2011-m07/0143.html and its
replies.
JK
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