[Libreoffice-bugs] [Bug 134193] sm Formula editor does not support RTL-CTL localized presentation markup, just content markup of formulas

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=134193

--- Comment #7 from libre officer <smartazaiz at gmail.com> ---
(In reply to V Stuart Foote from comment #6)
> Due to poor direction handling of formula parsers, RTL formulas were
> specifically suppressed for OpenOffice.org i62413 in 2006.
> 
> https://opengrok.libreoffice.org/xref/core/starmath/source/edit.
> cxx?a=true&r=be53f326#87

2006 is considered antiquity era in 2020 !

However, I strongly disagree with Rüdiger Timm's `Even RTL languages don't use
RTL for math` !! That's completely wrong, many countries still uses Arabic
letters in math formula.

People forgot that Math formula could be written in other languages to teach
kids in school basic geometry rules. For example, how can somebody type this
5th grade formula without inducing kids in error:


مساحة شبه المنحرف = (القاعدة الكبرى + القاعدة الصغرى) × الارتفاع ÷ 2

(  Trapezoid Area = (smaller side + bigger side) × height ÷ 2  )


Making exercises or lessons for kids in school would be impractical in
LibreOffice :(


I hope in the future that at least the text direction control characters will
be supported in math formula output..

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