* Arabic shaping
@ 2009-04-04 16:20 Khaled Hosny
2009-04-05 9:16 ` Hans Hagen
0 siblings, 1 reply; 3+ messages in thread
From: Khaled Hosny @ 2009-04-04 16:20 UTC (permalink / raw)
To: mailing list for ConTeXt users
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Currently 'font-ota.lua' hard codes the Arabic shaping properties,and it
doesn't seem to be complete (e.g. the ڤ as in أڤاست is not joined), I
think such information belong to 'char-def.lua' and should be derived
from UCD, which provide 'ArabicShaping.txt[1]', covering Arabic, Syriac
and N'Ko scripts which all need the same shaping as Arabic.
[1]http://unicode.org/Public/5.1.0/ucd/ArabicShaping.txt
Regards,
Khaled
--
Khaled Hosny
Arabic localiser and member of Arabeyes.org team
Free font developer
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___________________________________________________________________________________
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Arabic shaping
2009-04-04 16:20 Arabic shaping Khaled Hosny
@ 2009-04-05 9:16 ` Hans Hagen
2009-04-05 14:48 ` Khaled Hosny
0 siblings, 1 reply; 3+ messages in thread
From: Hans Hagen @ 2009-04-05 9:16 UTC (permalink / raw)
To: mailing list for ConTeXt users
Khaled Hosny wrote:
> Currently 'font-ota.lua' hard codes the Arabic shaping properties,and it
> doesn't seem to be complete (e.g. the ڤ as in أڤاست is not joined), I
> think such information belong to 'char-def.lua' and should be derived
> from UCD, which provide 'ArabicShaping.txt[1]', covering Arabic, Syriac
> and N'Ko scripts which all need the same shaping as Arabic.
indeed this info will be moved to char def at some point (same for some
cjk properties) but for the moment this is easier to hack; if you have
patches, just let us know (remider for idris: you also had some, these
symbols showing up in black in tre tracer ..)
Hans
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Arabic shaping
2009-04-05 9:16 ` Hans Hagen
@ 2009-04-05 14:48 ` Khaled Hosny
0 siblings, 0 replies; 3+ messages in thread
From: Khaled Hosny @ 2009-04-05 14:48 UTC (permalink / raw)
To: mailing list for ConTeXt users
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On Sun, Apr 05, 2009 at 11:16:55AM +0200, Hans Hagen wrote:
> Khaled Hosny wrote:
>> Currently 'font-ota.lua' hard codes the Arabic shaping properties,and it
>> doesn't seem to be complete (e.g. the ڤ as in أڤاست is not joined), I
>> think such information belong to 'char-def.lua' and should be derived
>> from UCD, which provide 'ArabicShaping.txt[1]', covering Arabic, Syriac
>> and N'Ko scripts which all need the same shaping as Arabic.
>
> indeed this info will be moved to char def at some point (same for some
> cjk properties) but for the moment this is easier to hack; if you have
> patches, just let us know (remider for idris: you also had some, these
> symbols showing up in black in tre tracer ..)
OK, the attached patch should added all Arabic entries from
ArabicShaping.txt, I tested some Arabic, Persian and Urdu samples and
all seem to be OK. This also fixes a small bug, 0629 (TEH MARBUTA) were
marked as dual joining while is is right joining only.
Regards,
Khaled
--
Khaled Hosny
Arabic localiser and member of Arabeyes.org team
Free font developer
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--- font-ota.lua.old 2009-04-05 16:37:45.000000000 +0200
+++ font-ota.lua 2009-04-05 16:41:07.000000000 +0200
@@ -111,23 +111,65 @@
local zwj = 0x200D
local isol = {
- [0x0621] = true, [zwnj] = true,
+ [0x0600] = true, [0x0601] = true, [0x0602] = true, [0x0603] = true,
+ [0x0608] = true, [0x060B] = true, [0x0621] = true, [0x0674] = true,
+ [0x06DD] = true, [zwnj] = true,
}
local isol_fina = {
- [0x0622] = true, [0x0623] = true, [0x0624] = true, [0x0625] = true, [0x0627] = true, [0x062F] = true,
- [0x0630] = true, [0x0631] = true, [0x0632] = true,
- [0x0648] = true, [0x0671] = true, [0x0698] = true,
- [0xFEF5] = true, [0xFEF7] = true, [0xFEF9] = true, [0xFEFB] = true,
+ [0x0622] = true, [0x0623] = true, [0x0624] = true, [0x0625] = true,
+ [0x0627] = true, [0x0629] = true, [0x062F] = true, [0x0630] = true,
+ [0x0631] = true, [0x0632] = true, [0x0648] = true, [0x0671] = true,
+ [0x0672] = true, [0x0673] = true, [0x0675] = true, [0x0676] = true,
+ [0x0677] = true, [0x0688] = true, [0x0689] = true, [0x068A] = true,
+ [0x068B] = true, [0x068C] = true, [0x068D] = true, [0x068E] = true,
+ [0x068F] = true, [0x0690] = true, [0x0691] = true, [0x0692] = true,
+ [0x0693] = true, [0x0694] = true, [0x0695] = true, [0x0696] = true,
+ [0x0697] = true, [0x0698] = true, [0x0699] = true, [0x06C0] = true,
+ [0x06C3] = true, [0x06C4] = true, [0x06C5] = true, [0x06C6] = true,
+ [0x06C7] = true, [0x06C8] = true, [0x06C9] = true, [0x06CA] = true,
+ [0x06CB] = true, [0x06CD] = true, [0x06CF] = true, [0x06D2] = true,
+ [0x06D3] = true, [0x06D5] = true, [0x06EE] = true, [0x06EF] = true,
+ [0x0759] = true, [0x075A] = true, [0x075B] = true, [0x076B] = true,
+ [0x076C] = true, [0x0771] = true, [0x0773] = true, [0x0774] = true,
+ [0x0778] = true, [0x0779] = true,
}
local isol_fina_medi_init = {
- [0x0626] = true, [0x0628] = true, [0x0629] = true, [0x062A] = true, [0x062B] = true, [0x062C] = true, [0x062D] = true, [0x062E] = true,
- [0x0633] = true, [0x0634] = true, [0x0635] = true, [0x0636] = true, [0x0637] = true, [0x0638] = true, [0x0639] = true, [0x063A] = true,
- [0x0640] = true, -- tadwil
- [0x0641] = true, [0x0642] = true, [0x0643] = true, [0x0644] = true, [0x0645] = true, [0x0646] = true, [0x0647] = true, [0x0649] = true, [0x064A] = true,
- [0x067E] = true, [0x0686] = true, [0x06AF] = true, [0x06A9] = true, [0x06CC] = true,
- [zwj] = true,
+ [0x0626] = true, [0x0628] = true, [0x062A] = true, [0x062B] = true,
+ [0x062C] = true, [0x062D] = true, [0x062E] = true, [0x0633] = true,
+ [0x0634] = true, [0x0635] = true, [0x0636] = true, [0x0637] = true,
+ [0x0638] = true, [0x0639] = true, [0x063A] = true, [0x063B] = true,
+ [0x063C] = true, [0x063D] = true, [0x063E] = true, [0x063F] = true,
+ [0x0640] = true, [0x0641] = true, [0x0642] = true, [0x0643] = true,
+ [0x0644] = true, [0x0645] = true, [0x0646] = true, [0x0647] = true,
+ [0x0649] = true, [0x064A] = true, [0x066E] = true, [0x066F] = true,
+ [0x0678] = true, [0x0679] = true, [0x067A] = true, [0x067B] = true,
+ [0x067C] = true, [0x067D] = true, [0x067E] = true, [0x067F] = true,
+ [0x0680] = true, [0x0681] = true, [0x0682] = true, [0x0683] = true,
+ [0x0684] = true, [0x0685] = true, [0x0686] = true, [0x0687] = true,
+ [0x069A] = true, [0x069B] = true, [0x069C] = true, [0x069D] = true,
+ [0x069E] = true, [0x069F] = true, [0x06A0] = true, [0x06A1] = true,
+ [0x06A2] = true, [0x06A3] = true, [0x06A4] = true, [0x06A5] = true,
+ [0x06A6] = true, [0x06A7] = true, [0x06A8] = true, [0x06A9] = true,
+ [0x06AA] = true, [0x06AB] = true, [0x06AC] = true, [0x06AD] = true,
+ [0x06AE] = true, [0x06AF] = true, [0x06B0] = true, [0x06B1] = true,
+ [0x06B2] = true, [0x06B3] = true, [0x06B4] = true, [0x06B5] = true,
+ [0x06B6] = true, [0x06B7] = true, [0x06B8] = true, [0x06B9] = true,
+ [0x06BA] = true, [0x06BB] = true, [0x06BC] = true, [0x06BD] = true,
+ [0x06BE] = true, [0x06BF] = true, [0x06C1] = true, [0x06C2] = true,
+ [0x06CC] = true, [0x06CE] = true, [0x06D0] = true, [0x06D1] = true,
+ [0x06FA] = true, [0x06FB] = true, [0x06FC] = true, [0x06FF] = true,
+ [0x0750] = true, [0x0751] = true, [0x0752] = true, [0x0753] = true,
+ [0x0754] = true, [0x0755] = true, [0x0756] = true, [0x0757] = true,
+ [0x0758] = true, [0x075C] = true, [0x075D] = true, [0x075E] = true,
+ [0x075F] = true, [0x0760] = true, [0x0761] = true, [0x0762] = true,
+ [0x0763] = true, [0x0764] = true, [0x0765] = true, [0x0766] = true,
+ [0x0767] = true, [0x0768] = true, [0x0769] = true, [0x076A] = true,
+ [0x076D] = true, [0x076E] = true, [0x076F] = true, [0x0770] = true,
+ [0x0772] = true, [0x0775] = true, [0x0776] = true, [0x0777] = true,
+ [0x077A] = true, [0x077B] = true, [0x077C] = true, [0x077D] = true,
+ [0x077E] = true, [0x077F] = true, [zwj] = true,
}
local arab_warned = { }
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___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
archive : https://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___________________________________________________________________________________
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