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Re: BIDI, LaTeX (auctex) and the «evil» backslash

From: Eli Zaretskii
Subject: Re: BIDI, LaTeX (auctex) and the «evil» backslash
Date: Sat, 21 May 2016 21:34:33 +0300

> From: Uwe Brauer <address@hidden>
> Cc: Uwe Brauer <address@hidden>, address@hidden
> Date: Sat, 21 May 2016 17:44:32 +0000
>    > The last one is possible, of course (this is Emacs), but that way lies
>    > madness: arbitrarily changing bidirectional properties of characters
>    > will bite you elsewhere, because the corresponding tables are global.
> So that cannot be restricted just to LaTeX mayor modes?

No, the tables are global (they are quite large).

> In any case how could I change the backslash on a lisp level, ie change
> (get-char-code-property ?\\ 'bidi-class)
> >From ON to whatever is necessary.

You want put-char-code-property, I think.  (Never tried this myself.)

>    > The other 3 alternatives are indeed the available solutions.
>    > Personally, I recommend the 1st one; I see no problem with typing
>    > RTL text in a left-to-right paragraph (and vice versa), and don't
>    > understand what unpleasant things you bump into when doing that.
>    > TeX files are fundamentally left-to-right, as any program text, so
>    > that would be my suggestion.
> Well I don't like the cursor movements in such a situation

Did you try setting visual-order-cursor-movement non-nil?  Maybe
that's all you need to solve your problems?

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