Set up the bidi iterator for iterating display strings and overlay strings.

Not tested yet, just compiled.

 src/xdisp.c (handle_single_display_spec, next_overlay_string)
 (get_overlay_strings_1, push_display_prop): Set up the bidi
 iterator for displaying display or overlay strings.
 (forward_to_next_line_start): Don't use the shortcut if
 bidi-iterating.
 (back_to_previous_visible_line_start): If handle_display_prop
 pushed the iterator stack, restore the internal state of the bidi
 iterator by calling bidi_pop_it same number of times.
 (reseat_at_next_visible_line_start): If ON_NEWLINE_P is non-zero,
 and we are bidi-iterating, don't decrement the iterator position;
 instead, set the first_elt flag in the bidi iterator, to produce
 the same effect.
 (reseat_1): Remove redundant setting of string_from_display_prop_p.
 (push_display_prop): xassert that we are iterating a buffer.
 (push_it, pop_it): Save and restore the state of the
 bidi iterator.  Save and restore the bidi_p flag.
 (pop_it): Iterate out of display property for string iteration as
 well.
 (iterate_out_of_display_property): Support iteration over strings.
 (handle_single_display_spec): Set up it->bidi_it for iteration
 over a display string, and call bidi_init_it.
 src/bidi.c (bidi_cache_start_stack, bidi_push_it): Use IT_STACK_SIZE.
 src/dispextern.h (struct iterator_stack_entry): New member bidi_p.
 (struct it): Member bidi_p is now a bit field 1 bit wide.

1 files changed, 32 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 40576554636..083aaaaa4bd 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,35 @@
+2011-06-25  Eli Zaretskii  <eliz@gnu.org>
+
+        * xdisp.c (handle_single_display_spec, next_overlay_string)
+        (get_overlay_strings_1, push_display_prop): Set up the bidi
+        iterator for displaying display or overlay strings.
+        (forward_to_next_line_start): Don't use the shortcut if
+        bidi-iterating.
+        (back_to_previous_visible_line_start): If handle_display_prop
+        pushed the iterator stack, restore the internal state of the bidi
+        iterator by calling bidi_pop_it same number of times.
+        (reseat_at_next_visible_line_start): If ON_NEWLINE_P is non-zero,
+        and we are bidi-iterating, don't decrement the iterator position;
+        instead, set the first_elt flag in the bidi iterator, to produce
+        the same effect.
+        (reseat_1): Remove redundant setting of string_from_display_prop_p.
+        (push_display_prop): xassert that we are iterating a buffer.
+
+        * bidi.c (bidi_cache_start_stack, bidi_push_it): Use IT_STACK_SIZE.
+
+2011-06-24  Eli Zaretskii  <eliz@gnu.org>
+
+        * xdisp.c (push_it, pop_it): Save and restore the state of the
+        bidi iterator.  Save and restore the bidi_p flag.
+        (pop_it): Iterate out of display property for string iteration as
+        well.
+        (iterate_out_of_display_property): Support iteration over strings.
+        (handle_single_display_spec): Set up it->bidi_it for iteration
+        over a display string, and call bidi_init_it.
+
+        * dispextern.h (struct iterator_stack_entry): New member bidi_p.
+        (struct it): Member bidi_p is now a bit field 1 bit wide.
+
 2011-06-23  Eli Zaretskii  <eliz@gnu.org>
 
         * dispextern.h (bidi_push_it, bidi_pop_it): Add prototypes.