Big conversion to wide characters and UTF-8 support.

This is incomplete. There are too many dependencies on
wide character support from the C stream I/O library,
and implicit use of some encoding which may not be UTF-8.
The regex code does not handle wide characters properly.
Character type is still int in some places, rather than wchar_t.
Test suite passes though.

1 files changed, 3 insertions, 3 deletions

diff --git a/stream.h b/stream.h
index ba483b27..78f83f93 100644
--- a/stream.h
+++ b/stream.h
@@ -35,13 +35,13 @@ obj_t *make_dir_stream(DIR *);
 obj_t *close_stream(obj_t *stream, obj_t *throw_on_error);
 obj_t *get_line(obj_t *);
 obj_t *get_char(obj_t *);
-obj_t *vformat(obj_t *stream, const char *string, va_list); /* nao-terminated */
+obj_t *vformat(obj_t *stream, const wchar_t *string, va_list); /* nao-term */
 obj_t *vcformat(obj_t *stream, const char *string, va_list); /* printf-style */
-obj_t *format(obj_t *stream, const char *string, ...);
+obj_t *format(obj_t *stream, const wchar_t *string, ...);
 obj_t *cformat(obj_t *stream, const char *string, ...);
 obj_t *put_string(obj_t *stream, obj_t *string);
 obj_t *put_line(obj_t *stream, obj_t *string);
-obj_t *put_cstring(obj_t *stream, const char *);
+obj_t *put_cstring(obj_t *stream, const wchar_t *);
 obj_t *put_char(obj_t *stream, obj_t *ch);
 obj_t *put_cchar(obj_t *stream, int ch);