[xep-support] Re: RTL script, Arabic-Indic figures and hyphen

From: Benoit Maisonny <bm.lists@synclude.com>
Date: Thu Aug 09 2012 - 06:31:57 PDT

FYI, XEP 4.20 doesn't fix this issue.
Any chance someone at RenderX looks into this?


On 1 July 2012 19:01, Benoit Maisonny <bm.lists@synclude.com> wrote:

> Hi,
> I have some trouble with Arabic text containing 2 Arabic-Indic figures
> separated by an hyphen:
> <fo:block-container writing-mode="rl-tb" font-family="FreeSerif">
> <fo:block xml:lang="ar-EG"><fo:inline>عام ٠-١</fo:inline>
> المقدمة</fo:block>
> </fo:block-container>
> The block-container is in a table-cell
> The text inside the fo:inline element is not displayed correctly in a PDF
> rendered by XEP 4.19.
> - I expect, reading right to left: "Arabic-word space Arabic-0 hyphen
> Arabic-1"
> - but I see in the PDF: "Arabic-word space Arabic-1 hyphen Arabic-0"
> So, 0 and 1 are switched. Other Unicode-compliant softwares display the
> text on screen as I expect it.
> If I understand the "bidi" system well, it is not correct to switch them
> because, with this hyphen, my text gives a list of 2 figures, and not a
> single number. So, the text RTL direction should be used, not the figures
> "weak" LTR direction.
> Looking at my FO file in a non-Unicode-compliant text editor, the
> characters are stored in the file in the right order: Arabic-word space
> Arabic-0 hyphen Arabic-1.
> If I replace the hyphen by an Arabic letter, then the figures are in the
> expected order, but a space or comma also give an incorrect order.
> I have the feeling this is an error in XEP, but maybe I misunderstand
> something here.
> Regards,
> Benoit


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Received on Thu Aug 9 06:21:49 2012

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