Bug report: U+3000 IDEOGRAPHIC SPACE isn't treated as whitespace

[Marnen Laibow-Koser]

Hi folks!

Attached are two small files that demonstrate what I think is a bug in
Lilypond's lexing/parsing of lyrics (2.19.69 on Mac OS X 10.13).
Basically, when entering data in \lyricmode, U+0020 SPACE correctly breaks
syllables, but U+3000 IDEOGRAPHIC SPACE (which is the default space on
Japanese keyboard layouts) does not: the syllables separated with that
character all wind up on one note.  Shouldn't we break syllables on *any*
Unicode whitespace character (except for the nonbreaking spaces, which I
believe have different Unicode character properties)?

Best,
-- 
Marnen Laibow-Koser
address@hidden
http://www.marnen.org

example.ly
Description: Binary data

example.pdf
Description: Adobe PDF document