From: Eli Zaretskii <eliz@gnu.org>
To: Kenichi Handa <handa@m17n.org>
Cc: emacs-bidi@gnu.org, emacs-devel@gnu.org, jasonr@gnu.org
Subject: Re: Arabic support
Date: Wed, 01 Sep 2010 02:11:24 -0400 [thread overview]
Message-ID: <E1OqgXc-0001rS-49@fencepost.gnu.org> (raw)
In-Reply-To: <tl7pqwy1a3k.fsf@m17n.org> (message from Kenichi Handa on Wed, 01 Sep 2010 11:17:03 +0900)
> From: Kenichi Handa <handa@m17n.org>
> Cc: jasonr@gnu.org, emacs-bidi@gnu.org, emacs-devel@gnu.org
> Date: Wed, 01 Sep 2010 11:17:03 +0900
>
> I read the function uniscribe_shape roughly. It has this
> code:
>
> for (i = 0; i < nitems; i++)
> {
> int nglyphs, nchars_in_run, rtl = items[i].a.fRTL ? -1 : 1;
> [...]
> if (SUCCEEDED (result))
> {
> int j, nclusters, from, to;
>
> from = rtl > 0 ? 0 : nchars_in_run - 1;
>
> Doesn't it mean uniscribe_shape reorders glyphs?
This reorders a single LGSTRING, according to my reading. Isn't an
LGSTRING a single grapheme cluster, rather than several distinct
characters?
Btw, where's the documentation of LGSTRING? The commentary to
uniscribe_shape says to look in font-make-gstring, but I cannot find
that, neither as function nor as variable. In general, everything
about compositions and lgstrings needs a lot more of documentation.
next prev parent reply other threads:[~2010-09-01 6:11 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-26 1:10 Arabic support Kenichi Handa
2010-08-27 9:56 ` Eli Zaretskii
2010-08-28 10:15 ` Amit Aronovitch
2010-08-29 5:07 ` James Cloos
2010-08-29 5:13 ` James Cloos
2010-08-30 2:07 ` Kenichi Handa
2010-08-30 13:42 ` Amit Aronovitch
2010-08-30 14:11 ` [emacs-bidi] " Amit Aronovitch
2010-09-03 7:35 ` Kenichi Handa
2010-09-03 7:54 ` [emacs-bidi] " Amit Aronovitch
2010-09-01 2:55 ` Kenichi Handa
2010-09-01 4:58 ` Eli Zaretskii
2010-09-01 5:06 ` Kenichi Handa
2010-09-01 7:12 ` [emacs-bidi] " Stefan Monnier
2010-09-03 7:17 ` Kenichi Handa
2010-08-30 7:47 ` Kenichi Handa
2010-08-30 14:06 ` Eli Zaretskii
2010-09-01 2:17 ` Kenichi Handa
2010-09-01 3:47 ` "Martin J. Dürst"
2010-09-02 7:45 ` 大嶋 俊祐
2010-09-02 9:31 ` Eli Zaretskii
2010-09-02 12:58 ` "Martin J. Dürst"
2010-09-02 14:13 ` [emacs-bidi] " Eli Zaretskii
2010-09-01 6:11 ` Eli Zaretskii [this message]
2010-09-01 7:08 ` Kenichi Handa
2010-09-01 17:55 ` Eli Zaretskii
2010-09-02 2:13 ` Jason Rumney
2010-09-02 11:53 ` Eli Zaretskii
2010-09-02 12:00 ` Eli Zaretskii
2010-09-02 13:09 ` [emacs-bidi] " Jason Rumney
2010-09-02 14:29 ` Eli Zaretskii
2010-09-02 14:37 ` [emacs-bidi] " Jason Rumney
2010-09-02 13:01 ` Kenichi Handa
2010-09-02 14:04 ` Eli Zaretskii
2010-09-03 1:00 ` Kenichi Handa
2010-09-03 9:16 ` Eli Zaretskii
2010-09-03 10:18 ` David Kastrup
2010-09-03 11:08 ` Kenichi Handa
2010-09-03 14:54 ` Eli Zaretskii
2010-09-03 13:25 ` Eli Zaretskii
2010-09-03 14:32 ` Amit Aronovitch
2010-09-03 14:43 ` Eli Zaretskii
2010-09-04 7:13 ` Eli Zaretskii
2010-09-06 6:04 ` Kenichi Handa
2010-09-04 15:29 ` Eli Zaretskii
2010-09-02 13:48 ` Jason Rumney
2010-09-02 14:49 ` Eli Zaretskii
2010-09-06 13:45 ` Thamer Mahmoud
2010-09-07 4:22 ` TAKAHASHI Naoto
-- strict thread matches above, loose matches on Subject: below --
2010-09-07 15:08 mhibti
2010-09-13 6:40 ` Eli Zaretskii
2010-09-16 2:07 ` Kenichi Handa
2010-09-22 3:54 ` Kenichi Handa
2010-09-22 12:27 ` Thamer Mahmoud
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