Braille is not bidi neutral! (was RE: Unicode Public Review Issue s update)

[Marco Cimarosti]

I don't remember whether Hebrew Braille is written RTL or LTR.

Braille is always LTR, even for Hebrew and Arabic.

Hwæt! I noticed only now that the Bidirectional Category of braille
characters is "ON - Other neutrals"!

AFAIK, that is completely broken!

A run of braille text *must* remain LTR in a bidi context, because braille
is never RTL. This "ON" bidi category makes it impossible to correctly
encode, e.g., a manual of Braille in Hebrew or Arabic, because the braille
runs would get swapped by the Bidirectional Algorithm.

_ Marco


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