From: Kenichi Handa <handa@gnu.org>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 11860@debbugs.gnu.org, smias@yandex.ru
Subject: bug#11860: 24.1; Arabic - Harakat (diacritics, short vowels) don't appear
Date: Fri, 14 Sep 2012 08:26:29 +0900 [thread overview]
Message-ID: <87obl9ec7u.fsf@gnu.org> (raw)
In-Reply-To: <83vcfhvowu.fsf@gnu.org> (message from Eli Zaretskii on Thu, 13 Sep 2012 20:00:17 +0300)
In article <83vcfhvowu.fsf@gnu.org>, Eli Zaretskii <eliz@gnu.org> writes:
> OK, but in this case we are talking about diacriticals, which are
> always drawn in the same character cell as the base character. IOW,
> the pen does not advance until the entire gstring is drawn. In that
> case, whatever Ffont_shape_gstring does will not affect the result on
> the screen, would it?
If a font driver decided to adjust the drawing poistion of a
base character, Ffont_shape_gstring wrongly combines that
character with the previous cluster, which results in wrong
display position of that base character.
For instance, provided upcases are base characters and
downcases are diacriticals, an RTL text "AaBbCc" should be
displayed as "CcBbAa", but if Ffont_shape_gstring wrongly
segment it as "AaBb" and "Cc", it is displayed as "CcAaBb.
---
Kenichi Handa
handa@gnu.org
next prev parent reply other threads:[~2012-09-13 23:26 UTC|newest]
Thread overview: 71+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-04 9:17 bug#11860: 24.1; Arabic - Harakat (diacritics, short vowels) don't appear Steffan
2012-07-04 20:22 ` Eli Zaretskii
2012-07-05 17:53 ` Steffan
2012-08-05 5:27 ` Steffan
2012-08-05 15:49 ` Eli Zaretskii
2012-08-13 0:02 ` Kenichi Handa
2012-08-18 2:45 ` Kenichi Handa
2012-08-18 7:14 ` Eli Zaretskii
2012-08-18 9:19 ` Kenichi Handa
2012-08-18 15:33 ` Eli Zaretskii
2012-08-19 7:32 ` YAMAMOTO Mitsuharu
2012-08-19 12:51 ` Kenichi Handa
2012-08-19 13:20 ` Kenichi Handa
2012-08-19 18:44 ` Eli Zaretskii
2012-08-19 18:53 ` Werner LEMBERG
2012-08-20 17:24 ` Eli Zaretskii
2012-08-19 3:02 ` Jason Rumney
2012-08-19 13:37 ` Kenichi Handa
2012-08-19 16:16 ` Jason Rumney
2012-08-19 18:54 ` Eli Zaretskii
2012-08-20 14:57 ` Kenichi Handa
2012-08-20 17:16 ` Eli Zaretskii
2012-08-21 9:20 ` Kenichi Handa
2012-08-19 18:52 ` Eli Zaretskii
2012-08-19 17:56 ` Eli Zaretskii
2012-08-19 4:34 ` YAMAMOTO Mitsuharu
2012-09-09 4:06 ` YAMAMOTO Mitsuharu
2012-09-11 14:49 ` Kenichi Handa
2012-09-11 17:48 ` Eli Zaretskii
2012-09-12 13:14 ` Kenichi Handa
2012-09-12 16:34 ` Eli Zaretskii
2012-09-13 6:07 ` Kenichi Handa
2012-09-13 17:00 ` Eli Zaretskii
2012-09-13 23:26 ` Kenichi Handa [this message]
2012-09-16 12:03 ` Kenichi Handa
2012-09-16 12:41 ` Eli Zaretskii
2012-09-16 15:43 ` Stefan Monnier
2012-09-16 15:50 ` Eli Zaretskii
2012-09-17 14:08 ` Kenichi Handa
2012-09-17 16:58 ` Stefan Monnier
2012-08-19 18:22 ` Eli Zaretskii
2012-08-21 13:16 ` Kenichi Handa
2012-08-21 17:32 ` Eli Zaretskii
2012-08-22 9:15 ` Kenichi Handa
2012-08-22 19:52 ` Steffan
2012-08-23 2:50 ` Eli Zaretskii
2012-08-22 21:40 ` Steffan
2012-08-23 2:49 ` Eli Zaretskii
2012-08-27 21:10 ` Steffan
2012-08-29 8:09 ` Kenichi Handa
2012-09-01 13:59 ` Eli Zaretskii
2012-09-03 13:55 ` Kenichi Handa
2012-09-03 15:53 ` Eli Zaretskii
2012-09-04 9:03 ` Kenichi Handa
2012-08-29 8:57 ` Steffan
2012-09-01 14:06 ` Eli Zaretskii
2012-09-03 15:31 ` Steffan
2012-09-03 16:28 ` Eli Zaretskii
2012-09-04 17:18 ` Eli Zaretskii
2012-09-03 16:24 ` Steffan
2012-09-03 17:49 ` Steffan
2012-09-06 2:09 ` YAMAMOTO Mitsuharu
2012-09-06 8:52 ` Steffan
2012-09-06 9:56 ` YAMAMOTO Mitsuharu
2012-09-06 10:47 ` Eli Zaretskii
2012-09-06 14:52 ` Steffan
2012-09-10 16:13 ` Steffan
2020-08-17 22:45 ` Stefan Kangas
2020-08-18 4:40 ` Eli Zaretskii
2020-08-18 9:47 ` Stefan Kangas
[not found] <14231341502795@web11e.yandex.ru>
2012-07-05 17:16 ` Eli Zaretskii
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