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Vim-6.0 & Arabic
- To: vim-multibyte at vim dot org
- Subject: Vim-6.0 & Arabic
- From: Nadim Shaikli <shaikli at yahoo dot com>
- Date: Tue, 20 Nov 2001 18:54:08 -0800 (PST)
- Cc: developer at arabeyes dot org
A couple of us are trying to add Arabic (8859-6) support to VIM-6 and we
have the following questions,
1. Why is it that whenever we type an Arabic character - "KeyTyped" is set
to FALSE (in getchar.c) - we've had to comment lines 2033-2038 out ?
Why is "typebuf.tb_maplen" resulting in > 0 ? And how to fix it ?
2. With our current .vim and keymap files we can see all Arabic 8859-6
characters without a problem, but we need to add the shaping code.
The shaped letters, for those unfamiliar with Arabic, are not supposed
to be stored to file/memory (unicode dictation :-) and so we need to
intercept the call to the actual display function and replace the 8859-6
encodings with ISO-10646 Form-B ones. Here's the question -- where is
the best place to make that intercept (file, function, etc) ?
In other words, we want to keep the buffer content as it is now, we
merely want to modify what the display engine shows on screen (and not
touch anything else) -- our encoding is in the 0600 - 06FF & FE70 - FEFF
With our current code, we can shape a few letters - but we end up modifying
the contents of the buffer (in memory and/or on disk if we were to save).
The source code is in,
The font file used is,
Note that you'd need the following settings,
$ vim -g
In 'Insert' Mode try using the following characters to see what I'm talking
about - "s", "u", ";" - try various different positions within a word to
see them mutate.
BTW: Characters get shaped in accordance to their location within a word -
what has to remain in memory (for searches) and on disk (for saves/restores
as well as interoperability with other programs) is the ISO-8859-6 encoding.
So how to fix-up "KeyTyped" and what is the best interception point for the
display (hopefully there is ONE common call for all the display functions) ?
Many thanks for your help in advance.
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