(0x0C48 ?t) ; VOWEL SIGN AI (two-part)
(0x0C4A 0x0C4C ?u) ; VOWEL SIGN O, OO, AU (above)
(0x0C4D ?H) ; SIGN VIRAMA (HALANT)
- (0x0C55 ?u) ; LENGTH SIGN (above)
- (0x0C56 ?b) ; AI LENGTH SIGN (below)
+ (0x0C55 ?u) ; LENGTH MARK (above)
+ (0x0C56 ?b) ; AI LENGTH MARK (below)
(0x0C60 0x0C61 ?V) ; LETTER VOCALIC RR, LL
(0x0C7E ?Y) ; internal use
(0x0C7F ?X) ; internal use