Startling the terminal into handling wide, two-column characters properly.

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4879 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

+2014-05-14  Benno Schulenberg  <bensberg@justemail.net>
+	* src/winio.c (edit_draw): Poke a non-breaking space into the last
+	column of every line, to startle the terminal into handling wide,
+	two-column characters properly.  This fixes Savannah bug #31743.
+
 2014-05-13  Benno Schulenberg  <bensberg@justemail.net>
 	* src/text.c (do_linter): Make an error message somewhat clearer.
 	* src/rcfile.c (parse_binding): Improve another error message.

src/winio.c

@@ -2495,6 +2495,11 @@ void edit_draw(filestruct *fileptr, const char *converted, int
     /* Just paint the string in any case (we'll add color or reverse on
      * just the text that needs it). */
     mvwaddstr(edit, line, 0, converted);
+#ifdef ENABLE_UTF8
+    if (using_utf8())
+	/* Tickle the terminal into displaying two-column characters properly. */
+	mvwaddstr(edit, line, COLS - 1, "\xC2\xA0\x00");
+#endif
 
 #ifndef DISABLE_COLOR
     /* If color syntaxes are available and turned on, we need to display