Fix display of R2L text

* src/xdisp.c (extend_face_to_end_of_line): Fix padding of R2L
screen lines with stretch glyph on the left.  (Bug#38233)

1 files changed, 10 insertions, 6 deletions

diff --git a/src/xdisp.c b/src/xdisp.c
index 8aefab964a8..c5676b3e174 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -21719,13 +21719,17 @@ extend_face_to_end_of_line (struct it *it)
                 }
             }
 
-          /* Fill space until window edge with the merged face.  */
-          const int stretch_width = it->last_visible_x - it->current_x;
+          /* Fill space until window edge with the merged face.  Do that
+             only for L2R rows, as R2L rows are handled specially below.  */
+          if (!it->glyph_row->reversed_p)
+            {
+              const int stretch_width = it->last_visible_x - it->current_x;
 
-          if (stretch_width > 0)
-              append_stretch_glyph (it, Qnil, stretch_width,
-                                    it->ascent + it->descent,
-                                    stretch_ascent);
+              if (stretch_width > 0)
+                append_stretch_glyph (it, Qnil, stretch_width,
+                                      it->ascent + it->descent,
+                                      stretch_ascent);
+            }
 
           it->char_to_display = saved_char;
           it->position = saved_pos;