[Libreoffice-bugs] [Bug 107204] Writer treats Hungarian Rovas (aka Old Hungarian) text as left-to-right script instead of right-to-left

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=107204

V Stuart Foote <vstuart.foote at utsa.edu> changed:

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                 CC|                            |rovasfoundation at gmail.com,
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--- Comment #13 from V Stuart Foote <vstuart.foote at utsa.edu> ---
(In reply to Khaled Hosny from comment #12)

Sorry, don't mean to be thick. 

At 5.3 we are claiming support for Hungarian (magyar) using the Rovás script,
wherein the Hungarian is encoded RTL departing from "modern" Hungarian which is
encoded LTR with Latin derived glyphs.

Seems the challenge is getting the assigned 10c80-10cff Unicode to render RTL
when the language is set to Hungarian. Where is that breaking down?

If we are depending on the ICU libraries to handle identification of the script
from its Unicode point range, and pass it for rendering as RTL rather than LTR
it is not.

The UAX#31 suggested to me that it would not be, as the ICU project recommended
against it. And that seemed to be the case.

Hungarian (default with Latin glyphs) are handled as Western language,
Hungarian (Szekely-Hungaraian Rovas) as a CTL font, and I'm having trouble
toggling between them, I keep getting dumped to Western and its LTR direction.

I don't see how I can force the UI to adjust, and the "automatic" detection
seems to not work (if it was actually implemented for this SMP Unicode block).

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