Save and restore bidi cache when saving and restoring the iterator.

Not tested, just compiled.

 src/bidi.c (bidi_shelve_cache, bidi_unshelve_cache): New functions.
 src/dispextern.h (bidi_shelve_cache, bidi_unshelve_cache): Declare
 prototypes.
 src/xdisp.c (SAVE_IT, RESTORE_IT): New macros.
 (pos_visible_p, face_before_or_after_it_pos)
 (back_to_previous_visible_line_start)
 (move_it_in_display_line_to, move_it_in_display_line)
 (move_it_to, move_it_vertically_backward, move_it_by_lines)
 (try_scrolling, redisplay_window, display_line): Use them when
 saving a temporary copy of the iterator and restoring it back.

1 files changed, 15 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 1a443e848a7..fdb6657e135 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,18 @@
+2011-07-03  Eli Zaretskii  <eliz@gnu.org>
+
+        * bidi.c (bidi_shelve_cache, bidi_unshelve_cache): New functions.
+
+        * dispextern.h (bidi_shelve_cache, bidi_unshelve_cache): Declare
+        prototypes.
+
+        * xdisp.c (SAVE_IT, RESTORE_IT): New macros.
+        (pos_visible_p, face_before_or_after_it_pos)
+        (back_to_previous_visible_line_start)
+        (move_it_in_display_line_to, move_it_in_display_line)
+        (move_it_to, move_it_vertically_backward, move_it_by_lines)
+        (try_scrolling, redisplay_window, display_line): Use them when
+        saving a temporary copy of the iterator and restoring it back.
+
 2011-07-02  Eli Zaretskii  <eliz@gnu.org>
 
         * xdisp.c (reseat_1): Call bidi_init_it to resync the bidi