Transcoder library

[Mike Gran]

Hi-

R6RS describes a transcoder library that converts locale strings to
codepoints and back.  I put together something that is like the
library described in R6RS.

Basically, one would create a transcoder like this...

(define TC (make-transcoder "UTF-8"))

... and then use it either to read codepoints from encoded files ...

(read-codepoint PORT TC)
(write-codepoint CODEPOINT PORT TC)

... or convert to/from vectors of codepoints ...

(locale-string->u32vector STRING TC)
(u32vector->locale-string U32VECTOR TC)

Not very useful on its own, but, perhaps will have more utility in the
future if someone implements R6RS ports and Unicode-enable
Guile.  ;-)

There's more info about it at http://lonelycactus.com/transcoder.html

-Mike Gran