Add wide character support to the Hurd console

* hurd/console.h (CONS_WCHAR_MASK, CONS_WCHAR_CONTINUED): New macros.
* console/console.c: Include <locale.h>
(main): Call setlocale.
* console/display.c (display_output_one): Call wcwidth() to know the
width of the character to be displayed. Iterate over this with to insert
characters with the additional CONS_WCHAR_CONTINUED flag. Update
screen_shift_right and display_record_filechange calls accordingly.
* console-client/vga-dynafont.c (WCHAR_BOLD, WCHAR_ITALIC, WCHAR_MASK):
Change macro values.
(dynafont_new): Use glyph->bbox.{width,height} instead of
df->font->bbox.{width,height}.
(dynafont_change_font): Likewise.
(dynafont_lookup_internal): Likewise.
Mask out CONS_WCHAR_CONTINUED before calling bdf_find_glyph, but test it
for the second position of a double-width glyph.
(dynafont_activate): Enable 9-bit width only when font width is not
dividable by 8.

1 files changed, 3 insertions, 0 deletions

diff --git a/console/console.c b/console/console.c
index 6225d71d..eb2f1f44 100644
--- a/console/console.c
+++ b/console/console.c
@@ -23,6 +23,7 @@
 #include <stdlib.h>
 #include <stddef.h>
 #include <unistd.h>
+#include <locale.h>
 
 #include <argp.h>
 #include <argz.h>
@@ -2018,6 +2019,8 @@ main (int argc, char **argv)
   /* Parse our command line arguments.  */
   argp_parse (&netfs_std_runtime_argp, argc, argv, 0, 0, cons);
 
+  setlocale (LC_CTYPE, "C.UTF-8");
+
   task_get_bootstrap_port (mach_task_self (), &bootstrap);
 
   netfs_init ();