ErikWould it be possible to do a Latin right to left with current font technology?
Claus Eggers Sørensen@letterror I can’t see how that would be possible. Latin is set L-t-R in Unicode, and this is external to the font. Only thing I can think of is some hack use of `rtla`, but it would require the corporation of the application.
Khaled Hosny@clauseggers @letterror It is not something fonts can control, but it is something fonts can support. Unicode has control characters to force text to be RTL or LTR despite its default direction. Fonts can include ltrm/ltra or rtlm/rtla features to substitute glyphs when text direction is LTR or RTL. The input text will need to use these characters (or an equivalent solution, like HTML’s <bdo> element).
Tiro Typeworks@khaled @clauseggers @letterror I’ve implemented this for Greek, and the Latin approach should be the same. See image alt text for more details.
@khaled @clauseggers @letterror The distinction between the rtlm/ltrm and rtla/ltra feature pairs is a bit obscure if one isn’t used to dealing with bidi text.
The ***m features are for mirroring pairs not directly supported by the Unicode mirroring property, and the ***a features are for directional variants, as in my boustrophedon example.