(get_next_display_element): Decode it->c by charset_unibyte.

(x_produce_glyphs): Likewise.

diff --git a/src/xdisp.c b/src/xdisp.c
index ffe1e9e..a0ac755 100644 (file)
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -5674,6 +5674,7 @@ get_next_display_element (it)
       if (success_p && it->dpvec == NULL)
        {
          Lisp_Object dv;
+         struct charset *unibyte = CHARSET_FROM_ID (charset_unibyte);
 
          if (it->dp
              && (dv = DISP_CHAR_VECTOR (it->dp, it->c),
@@ -5728,7 +5729,7 @@ get_next_display_element (it)
                                  || it->c == 0xAD /* SOFT HYPHEN */)))
                       : (it->c >= 127
                          && (! unibyte_display_via_language_environment
-                             || (UNIBYTE_CHAR_HAS_MULTIBYTE_P (it->c)))))))
+                             || (DECODE_CHAR (unibyte, it->c) <= 0xA0))))))
            {
              /* IT->c is a control character which must be displayed
                 either as '\003' or as `^C' where the '\\' and '^'
@@ -21094,9 +21095,12 @@ x_produce_glyphs (it)
        {
          if (SINGLE_BYTE_CHAR_P (it->c)
              && unibyte_display_via_language_environment)
-           it->char_to_display = unibyte_char_to_multibyte (it->c);
-         if (! SINGLE_BYTE_CHAR_P (it->char_to_display))
            {
+             struct charset *unibyte = CHARSET_FROM_ID (charset_unibyte);
+
+             /* get_next_display_element assures that this decoding
+                never fails.  */
+             it->char_to_display = DECODE_CHAR (unibyte, it->c);
              it->multibyte_p = 1;
              it->face_id = FACE_FOR_CHAR (it->f, face, it->char_to_display,
                                           -1, Qnil);