json-fortran 4.0.0
I just tagged the 4.0.0 release of json-fortran. This is the first release with Unicode support (thanks to Izaak Beekman). Who says there are no good open source Fortran projects on the internet?
The Unicode build of the library is optional (and only enabled using the preprocessor directive USE_UCS4). Currently, this only works with Gfortran. It doesn't yet work with the Intel Fortran Compiler, which is lagging behind on Unicode support. The Fortran standard supports Unicode via the selected_char_kind function, which can be used to specify the character set used for a character string, like so:
integer,parameter :: u = selected_char_kind('ISO_10646')
character(kind=u,len=11) :: string = u_'Hello World'