Patrick Andries scripsit: > Small question again. > > Why is U+17C1 KHMER VOWEL SIGN E of General category Mc (Mark, Spacing > Combining) while similar signs in Lao and Thai, related scripts, are of > General category Lo (Letter, Other) ? > > See U+0E40 THAI CHARACTER SARA E and U+0EC0 LAO VOWEL SIGN E, I believe > these signs are also placed on the left of the consonant affected.
Thai (and Lao, whose encoding closely parallels that of Thai) are encoded in Unicode on unique principles: by a straight left-to-right typewriter-style encoding. This was done for compatibility with the pervasive Thai 8-bit standard. It also means that for collation purposes what are historically left-side vowels must be moved after the following consonant. Note that the Thai characters are not labeled LETTER or VOWEL SIGN or what have you, but simply CHARACTER. -- Only do what only you can do. John Cowan <[EMAIL PROTECTED]> --Edsger W. Dijkstra's advice http://www.reutershealth.com to a student in search of a thesis http://www.ccil.org/~cowan
