Support bidi reordering of unibyte strings. Fix crash displaying "All" in mode line of an empty buffer.

 src/dispextern.h (struct bidi_string_data): New member `unibyte'.
 src/xdisp.c (handle_single_display_spec, next_overlay_string)
 (get_overlay_strings_1, reseat_1, reseat_to_string)
 (push_display_prop): Set up the `unibyte' member of bidi_it.string
 correctly.  Don't assume unibyte strings are not bidi-reordered.
 (compute_display_string_pos)
 (compute_display_string_end): Fix handling the case of C string.
 src/bidi.c (bidi_count_bytes, bidi_char_at_pos): Accept an
 additional argument UNIBYTE, and support unibyte strings.  All
 callers changed.
 (bidi_fetch_char): Support unibyte strings.

1 files changed, 16 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 8d5275f9702..8cb94b3ff22 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,19 @@
+2011-07-01  Eli Zaretskii  <eliz@gnu.org>
+
+        * dispextern.h (struct bidi_string_data): New member `unibyte'.
+
+        * xdisp.c (handle_single_display_spec, next_overlay_string)
+        (get_overlay_strings_1, reseat_1, reseat_to_string)
+        (push_display_prop): Set up the `unibyte' member of bidi_it.string
+        correctly.  Don't assume unibyte strings are not bidi-reordered.
+        (compute_display_string_pos)
+        (compute_display_string_end): Fix handling the case of C string.
+
+        * bidi.c (bidi_count_bytes, bidi_char_at_pos): Accept an
+        additional argument UNIBYTE, and support unibyte strings.  All
+        callers changed.
+        (bidi_fetch_char): Support unibyte strings.
+
 2011-06-25  Eli Zaretskii  <eliz@gnu.org>
 
         * xdisp.c (set_iterator_to_next, get_visually_first_element): Use