Re: [emacs-bidi] status? news?

[Roozbeh Pournader]

On Sun, 21 Jan 2001, Eli Zaretskii wrote:

> You are assuming that the display swaps between the two quote 
> characters.  This might not be so, depending on how the display works.

I was assuming the UTR9 behaviour.

> There are several implementations of the Unicode algorithm, and they all 
> differ in some hard cases.  So the goal of gettin the text displayed the 
> same everywhere seems to be impossible to achieve anyway.  Given this, I 
> don't see any disaster in having another slightly different implementation,
> provided that we think it is a better one.  (And it really isn't so hard
> to come up with a better implementation, believe me.)

It's possible to achieve. I believe that the implementations will converge
to Unicode compliance. We really need the portablity of text, and I'm sure
the bidi writers will start pushing the implementors to support exact
display of bidi texts.

I know that better algorithms exist, my whole point is that I need
something portable. We can't push our variant. We can only push something
standard.

> Not necessarily.  I was talking about cutting and pasting within Emacs, 
> where the OS isn't involved at all.

In that case, it can find the directionality. It has the string in the
other buffer, and can tell it from the resolved level (in Unicode bidi
terms) of the character.

--roozbeh