On Fri, 25 Jan 2019 17:02:25 -0500 James Tauber via Unicode <unicode@unicode.org> wrote:
> I guess U+02BC is category Lm not Mn, but doesn't that still mean it > modifies the previous character (i.e. is really part of the same > grapheme cluster) and so isn't appropriate as either a vowel or an > indication of an omitted vowel? To quote TUS: "A few may modify the following letter, and some may serve as a independent letters". Bear in mind that one of the uses of U+02BC is the scholarly representation of a glottal stop, especially in Arabic names. Richard.