[sword-devel] reversed BHS

[David Burry]

The only stupid question is the one that's not asked ;o)

Another thing I forgot to mention, the BiDi conversion would be locked
to a given margin width if it were done in the file in disk (as well as
require fixed-width fonts to simulate right-justify), that's why it must
be done in a filter, to allow for varying margin widths in different end
user applications.

Dave


-----Original Message-----
From: sword-devel-admin@crosswire.org
[mailto:sword-devel-admin@crosswire.org] On Behalf Of Dave Washburn
Sent: Monday, April 07, 2003 2:59 PM
To: sword-devel@crosswire.org
Subject: Re: [sword-devel] reversed BHS


Makes sense.  Thanks to you and Christian for explaining, and to all for

tolerating my ignorance.

Now, can somebody tell me about that filter Chris mentioned...

On Monday 07 April 2003 16:31, David Burry wrote:
> I agree with this.  According to the Unicode standard the "original 
> direction" of the bytes in a given text is supposed to be from 
> beginning to end, regardless of the way it's presented to the end 
> user.  To display such a text ideally BiDi should be handled properly 
> by the rendering engine, and for rendering engines that cannot handle 
> it (yet) a BiDi converter filter should be applied (giving it the 
> current margin width, etc)....  Changing the order of the characters 
> in the module to be backwards within each line but still have the 
> lines in forward order is not the right way to do it, since it 
> wouldn't even be Unicode any longer.
>
> Dave
>
>
> -----Original Message-----
> From: sword-devel-admin@crosswire.org 
> [mailto:sword-devel-admin@crosswire.org] On Behalf Of Christian Renz
> Sent: Monday, April 07, 2003 2:53 PM
> To: sword-devel@crosswire.org
> Subject: Re: [sword-devel] reversed BHS
>
> >I'm not sure how creating a text that is written in its original 
> >direction violates the standard, but I don't know much about Unicode 
> >either so
>
> that
>
> >doesn't say much.
>
> I'm not a Unicode wise-guy, but here's my take on this: There is no 
> "left" or "right" in a file. There is just a first character, then a 
> second one, etc. until the last one.
>
> Displaying left-to-right or right-to-left is purely a presentation 
> issue. If you put a Unicode-encoded Hebrew text in a file, it is from 
> beginning to end -- just like English or Chinese texts. The renderer 
> then takes care (using the BiDi-functions) that the display is 
> correct.
>
> What you would be suggesting is to probably break up the text into the

> lines and store them "in its original direction". Chris is rightly 
> reacting somewhat allergic to that, since it is going to bring about 
> lots of problems. It is probably easier to just fix the software.
>
> Greetings,
>    Christian

-- 
Dave Washburn
http://www.nyx.net/~dwashbur
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