From: Eli Zaretskii <eliz@gnu.org>
To: ehud@unix.mvs.co.il
Cc: emacs-bidi@gnu.org, emacs-devel@gnu.org
Subject: Re: Mixed L2R and R2L paragraphs and horizontal scroll
Date: Mon, 01 Feb 2010 22:18:31 +0200 [thread overview]
Message-ID: <83vdeghfqg.fsf@gnu.org> (raw)
In-Reply-To: <201002011400.o11E0jMQ007420@beta.mvs.co.il>
> Date: Mon, 1 Feb 2010 16:00:45 +0200
> From: "Ehud Karni" <ehud@unix.mvs.co.il>
> Cc: emacs-devel@gnu.org, emacs-bidi@gnu.org
>
> [sniped] Eli's final conclusion for scrolled text is:
>
> > +---------+---------+-------------------+
> > |$ijk |abcdefgh$|abcdefghijk |
> > | KJI$|$HGFEDCBA| KJIHGFEDCBA|
> > | | | |
> > +---------+---------+-------------------+
>
> I agree with Eli's decision, but it applies only to non-technical text.
What is a ``non-technical text'', and how is it different from the
other kind? Also, to what kind belong your examples in this message?
> Consider Example1: a list of items, each line has: name, quantity,
> catalog-id and description. Most of the names are in Latin but some
> are in Hebrew.
Where is Example1? I don't see it in the message you posted? Did you
talk in general about itemized lists with mixed L2R and R2L text?
> In this case there must be an external dictation of paragraph direction.
There is already a variable to force certain paragraph direction on
all the paragraphs in a buffer. Finer (per-paragraph) control can be
exercised by starting a paragraph with a suitable mark (RLM or LRM)
character.
But what does this have to do with the issue at hand?
> scrolled (23) in a smaller window:
> +-------------------------------+
> |$ong-description |
> |$NOITPIRCSED-GNO |
> +--------------------------------
Why like above and not like below:
+-------------------------------+
|$ong-description |
|$RCSED-GNOL-YREV |
+--------------------------------
?
> Example 3: text, mostly in Hebrew but some lines have no Hebrew,
> like arithmetic formulas (Latin + digits + neutrals only) or
> ls output (real recent email I got).
>
> Here we could use either external dictation of RTL direction or
> automatic paragraph direction. In RTL direction the formula may be
> displayed wrongly (if neutral characters are on the sides). When
> automatic paragraph direction is used, short lines may be too far
> apart.
A real example will help here.
> In this case, something like `right-margin-goal-column' as suggested
> by RMS is a good solution.
The problem with such a ``rigid scrolling'' is that it must affect L2R
lines as well, for consistency. In the current display engine, we
don't allow scrolling to the right (e.g., with C-x >) once column zero
is visible. With rigid scrolling, we will need to allow it.
Anyway, thanks for the feedback.
next prev parent reply other threads:[~2010-02-01 20:18 UTC|newest]
Thread overview: 98+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-30 13:44 Mixed L2R and R2L paragraphs and horizontal scroll Eli Zaretskii
2010-01-30 15:14 ` David De La Harpe Golden
2010-01-30 15:33 ` Eli Zaretskii
2010-01-30 16:36 ` martin rudalics
2010-01-30 17:01 ` Eli Zaretskii
2010-01-30 17:22 ` martin rudalics
2010-01-30 17:52 ` Eli Zaretskii
2010-01-30 18:31 ` martin rudalics
2010-01-30 19:12 ` Eli Zaretskii
2010-01-30 19:45 ` martin rudalics
2010-01-30 21:40 ` Eli Zaretskii
2010-01-31 9:36 ` martin rudalics
2010-01-31 18:02 ` Eli Zaretskii
2010-01-31 20:01 ` martin rudalics
2010-01-31 21:53 ` Miles Bader
2010-02-01 4:12 ` Eli Zaretskii
2010-02-01 8:34 ` martin rudalics
2010-02-01 4:11 ` Eli Zaretskii
2010-02-01 8:34 ` martin rudalics
2010-02-01 20:21 ` Eli Zaretskii
2010-02-02 8:08 ` martin rudalics
2010-02-02 19:30 ` Eli Zaretskii
2010-02-03 16:06 ` martin rudalics
2010-02-01 21:05 ` Richard Stallman
2010-02-02 8:08 ` martin rudalics
2010-02-02 13:23 ` tomas
2010-02-02 14:39 ` martin rudalics
2010-02-02 19:32 ` Eli Zaretskii
2010-02-06 6:29 ` tomas
2010-02-02 21:21 ` Richard Stallman
2010-02-06 6:35 ` tomas
2010-02-06 14:46 ` David De La Harpe Golden
2010-02-06 22:55 ` Richard Stallman
2010-02-02 21:21 ` Richard Stallman
2010-01-30 23:26 ` David De La Harpe Golden
2010-01-31 12:42 ` Richard Stallman
2010-01-31 15:02 ` David De La Harpe Golden
2010-01-31 18:20 ` Eli Zaretskii
2010-01-31 18:16 ` Eli Zaretskii
2010-02-01 21:05 ` Richard Stallman
2010-02-01 21:51 ` Eli Zaretskii
2010-02-02 21:21 ` Richard Stallman
2010-02-01 14:00 ` Ehud Karni
2010-02-01 20:18 ` Eli Zaretskii [this message]
2010-02-01 22:05 ` [emacs-bidi] " Ehud Karni
2010-02-02 20:04 ` Eli Zaretskii
2010-02-03 13:10 ` Ehud Karni
2010-02-03 18:59 ` Eli Zaretskii
2010-02-04 11:01 ` Richard Stallman
2010-02-04 15:14 ` [emacs-bidi] " Stefan Monnier
2010-02-04 15:57 ` David Kastrup
2010-02-04 17:21 ` Davis Herring
2010-02-04 19:33 ` Eli Zaretskii
2010-02-04 20:46 ` [emacs-bidi] " tomas
2010-02-04 22:23 ` Eli Zaretskii
2010-02-06 6:41 ` [emacs-bidi] " tomas
2010-02-04 22:05 ` Stefan Monnier
2010-02-04 19:12 ` Eli Zaretskii
2010-02-05 12:44 ` Richard Stallman
2010-02-05 13:30 ` Eli Zaretskii
2010-02-05 18:06 ` [emacs-bidi] " Stefan Monnier
2010-02-05 21:48 ` Eli Zaretskii
2010-02-06 22:55 ` Richard Stallman
2010-02-07 4:08 ` Eli Zaretskii
2010-02-07 8:35 ` David Kastrup
2010-02-07 15:05 ` Richard Stallman
2010-02-04 14:02 ` [emacs-bidi] " Ehud Karni
2010-02-04 19:30 ` Eli Zaretskii
2010-02-04 19:48 ` [emacs-bidi] " Eli Zaretskii
2010-02-06 6:52 ` tomas
2010-02-03 21:02 ` Davis Herring
2010-02-04 4:16 ` Bidirectional embeddings (was: Mixed L2R and R2L paragraphs and horizontal scroll) Eli Zaretskii
2010-02-04 16:21 ` [emacs-bidi] Mixed L2R and R2L paragraphs and horizontal scroll Ehud Karni
2010-02-04 19:40 ` Eli Zaretskii
2010-02-04 22:13 ` [emacs-bidi] " Stefan Monnier
2010-02-05 9:50 ` Eli Zaretskii
2010-02-05 10:47 ` Eli Zaretskii
2010-02-05 18:06 ` [emacs-bidi] " Stefan Monnier
2010-02-06 13:39 ` David De La Harpe Golden
2010-02-06 15:45 ` Ehud Karni
2010-02-06 19:38 ` Eli Zaretskii
2010-02-06 21:18 ` [emacs-bidi] " David De La Harpe Golden
2010-02-11 21:40 ` Beni Cherniavsky
2010-02-12 11:03 ` Eli Zaretskii
2010-02-12 12:36 ` Eli Zaretskii
2010-02-05 12:21 ` [emacs-bidi] " Ehud Karni
2010-02-05 13:47 ` Eli Zaretskii
2010-02-05 14:22 ` Miles Bader
2010-02-05 14:52 ` Eli Zaretskii
2010-02-06 1:07 ` Miles Bader
2010-02-06 9:03 ` Eli Zaretskii
2010-02-06 9:32 ` Miles Bader
2010-02-06 15:42 ` [emacs-bidi] " Ehud Karni
2010-02-06 19:14 ` Eli Zaretskii
2010-02-03 13:22 ` [emacs-bidi] " Ehud Karni
2010-02-03 19:01 ` Eli Zaretskii
2010-02-04 14:08 ` [emacs-bidi] " Ehud Karni
2010-02-01 15:36 ` Stefan Monnier
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