Theodore,
> http://www.unicode.org/unicode/reports/tr15/ mentions both
> composites and combining sequences.
>
> But it doesn't tell us the difference. I know what a combining
> sequence is. If I didn't know what a composite was, I'd guess it
> was the same thing as a combining sequence.
See TUS 3.0, Chapter 3, pp. 43-44
D17 Combining character sequence: a character sequence consisting of
either a base character followed by a sequence of one or more
combining characters, or a sequence of one or more combining
characters.
[e.g. A + combining-grave <U+0041, U+0300>]
D18 Decomposable character: a character that is equivalent to a sequence
of one or more other characters, according to the decomposition
mappings found in the names list... It may also be known as a
precomposed character or composite character.
[e.g. A-grave, U+00C0]
--Ken
