cpp => 'text/x-c++src',
cs => 'text/x-csharp', # Used by GNOME. Not in mime.types.
go => 'text/plain', # ?
+ gs => 'text/plain',
hs => 'text/x-haskell',
java => 'text/x-java',
pas => 'text/x-pascal',
CPP => 'cpp',
GCCGO => 'go',
GOLANG => 'go',
+ GOLFSCRIPT => 'gs',
HASKELL => 'hs',
MONO => 'cs',
JAVA => 'java',