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alias FontDirection

(alias) FontDirection = (0|1|2|3|4|5|6|7|8|9...)
    | 0 -- LT
    | 1 -- LL
    | 2 -- LB
    | 3 -- LR
    | 4 -- RT
    | 5 -- RL
    | 6 -- RB
    | 7 -- RR
    | 8 -- TT
    | 9 -- TL
    | 10 -- TB
    | 11 -- TR
    | 12 -- BT
    | 13 -- BL
    | 14 -- BB
    | 15 -- BR

The direction is a number signalling the “normal” direction for this font. There are sixteen possibilities.

These are Omega-style direction abbreviations: the first character indicates the “first” edge of the character glyphs (the edge that is seen first in the writing direction), the second the “top” side. Keep in mind that LuaTeX has a bit different directional model so these values are not used for anything.

😱 Types incomplete or incorrect? 🙏 Please contribute!