Dean Snyder asked: > Archaic Greek exhibits variable glyph stance, that is, glyphs can be > flipped horizontally or even vertically, usually dependent upon the > direction of the writing stream. > > How should variable glyph stance for the same characters in the same > script be dealt with in Unicode and in a Unicode proposal?
TUS 4.0, p. 340 (available online): "If the default directionality of the [Old Italic] script is overridden to produce a right-to-left presentation, the glyphs in Old Italic fonts should also be mirrored from the representative glyphs shown in the code charts. This kind of behavior is not uncommon in archaic scripts; for example, archaic Greek letters may be mirrored when written right to left in boustrophedon." That is how it should be dealt with in Unicode. And there is no point in making a Unicode proposal to do otherwise, as the UTC has shown no interest in treating glyph mirroring in multiple directionality layouts as anything other than concerns for higher-level protocols. --Ken
