2012-11-24 8:12, Masatoshi Kimura wrote:
According to TUS v6.2 clause 16.4,
http://www.unicode.org/versions/Unicode6.2.0/ch16.pdf#page=15
The base character in a variation sequence is never a
combining character or a decomposable character.
However, the following base characters appearing in
http://unicode.org/Public/6.2.0/ucd/StandardizedVariants.txt
have a decomposition mapping.
There seems to be a contradiction here. “Decomposable character” is
defined in clause 3.7 as follows:
“A character that is equivalent to a sequence of one or more other
characters, according to the decomposition mappings found in the Unicode
Character Database, and those described in Section 3.12, Conjoining Jamo
Behavior.”
I suppose the intended meaning in clause 16.4, given its context, is to
say that the base character is neither a combining character nor a
character with a decomposition that contains a combining character.
Yucca
