Re: "UTR#9: Bidirection" and "UTR#14: Line Breaking"

From: Chookij Vanatham (Chookij.Vanatham@sun.com)
Date: Mon Mar 25 2002 - 18:41:27 EST


Hi Markus,

> Chookij Vanatham wrote:
>
> > UTR#14:Line Breaking says that, "Interpretation of line breaking properties
> > in bidirectional text takes place before applying rule L1 of the Unicode
> > Bidirectional Algorithm....".
> >
> > UTR#9:Bidirectional says that, [at the Reordering Resolved Levels section],
> > "As opposed to resolution phases, this algorithm "Reordering Resolved
Levels",
> > acts on a per-line basis, and is applied after any line wrapping ...."
>
>
> You can work on the paragraph-level Bidi resolution in parallel with (i.e.,
> in any order relative to) figuring out line breaks.
>
> Then you run line-level Bidi resolution/reordering.
>
> For soft line breaks you will need to iterate through several line breaks
> and reorderings until your glyph vector fits.

Actually, what I'd like to know is the sample of text showing the reason
why "line-breaking alogirithm" is a must to apply after getting embedded
level of the text (before re-ordering resolved embedding levels of text),
otherwise, the result of direction of text after line breaking won't be
correct.

If those text has the meaning, that would be great too.

Thanks,

Chookij V.

>
>
> markus
>
>
>



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