Re: Qtext

  Matitiahu Allouche <matial-7z/5BgaJwgfQT0dZR+AlfA@xxxxxxxxxxxxxxxx> [27/09/02 
13:29]:
> The main problem in a Bidi word processor is not how to transform logical 
> to visual format.  As Tzafrir Cohen mentioned, there are a number of 
> libraries available for this purpose, which all generally produce the same 
> results, the exceptions being for rather off-beat cases.
> 
> The main problem is with the *interface*, mainly what should Delete, 
> Backspace etc... perform, where the caret (or text cursor) should go after 
> given operations, how to handle selection, to name a few important issues.
> 
Well, if you have the additional information that your character is a
r2l character (even if it is a space or parentheses), this can help you
decide what to do. I actually saw how both Backspace and selection work
in QText, and it seems to work great.

> For anybody considering doing work on a Bidi text editor or word 
> processor, it is worth knowing that the SII ("Machon HaTekanim" in Hebrew) 
> has published for comments a draft standard for such an interface.  In 
> view of the very small number of comments received, it is likely to become 
> a standard very close to the present text, once all the formal procedure 
> is completed.  The SII web site being in shambles, for what I know, I 
> don't know where one can download this document.  Whoever is interested 
> can send me a private e-mail, and I will send her/him the document.
> 
> Shalom (Regards),  Mati
>            Bidi Architect
>            Globalization Center Of Competency - Bidirectional Scripts
>            IBM Israel
>            Phone: +972 2 5870999  ext. 1202    Fax: +972 2 5870333 Mobile: 
> +972 52 554160
> 
> 
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--
Moshe Kaminsky 
(Home) 08-9471073

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