Query on UTF-32 encodings for letters

[Paul Koning]

>>>>> "Robert" == Robert Dewar <dewar@adacore.com> writes:

 Robert> Ada 2005 requires full support for all planes of UTF-32
 Robert> encoding, including the use of letters in identifiers,
 Robert> including also proper upper lower case equivalence.

 Robert> All this information is obtainable from the 10646 standard,
 Robert> but it is non-trivial to generate the predicates Is_Letter,
 Robert> and the function To_Lower.

 Robert> I wondered if anyone knew of GPL'ed code that did either of
 Robert> these two functions before I reinvent the wheel :-)

Libiconv and libidn are relevant -- both GNU projects
(http://www.gnu.org/software/libiconv/ and
http://www.gnu.org/software/libidn/).  There's also the Stringprep
spec, RFC 3454.

      paul