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2009-09-12 Eli Zaretskii <eliz@gnu.org>
* dispnew.c (direct_output_for_insert): Give up if we are
reordering bidirectional text.
* dispextern.h (IT_STACK_SIZE): Enlarge to 5.
* xdisp.c (display_line): Set row->end and it->start for the next
row to the next character in logical order. If we are reordering
bidi text, push and pop the iterator before and after momentarily
iterating in logical order.
2009-09-11 Eli Zaretskii <eliz@gnu.org>
Note: The following changes were undone on 2009-09-12.
* xdisp.c (set_iterator_to_next, reseat, reseat_1)
(reseat_at_next_visible_line_start): Accept additional argument
force_logical_p; all callers changed. If force_logical_p is
non-zero, force iteration in buffer's logical order even in bidi
buffers.
* dispnew.c (direct_output_for_insert): Call set_iterator_to_next
with additional argument zero.
* dispextern.h (set_iterator_to_next): Now accepts an additional
argument.
2009-08-29 Eli Zaretskii <eliz@gnu.org>
* xdisp.c (set_cursor_from_row): Don't assume glyph->charpos
increments linearly.
(try_window_reusing_current_matrix): Don't assume glyph->charpos
increments linearly.
2009-08-28 Eli Zaretskii <eliz@gnu.org>
* bidi.c <bidi_overriding_paragraph_direction>: Default to L2R,
for now.
2009-08-22 Eli Zaretskii <eliz@gnu.org>
* bidi.c (bidi_initialize): staticpro bidi_char_table.
(bidi_check_type): New function.
(bidi_cache_iterator_state, bidi_remember_char)
(bidi_resolve_explicit_1, bidi_resolve_explicit)
(bidi_resolve_weak, bidi_resolve_neutral)
(bidi_level_of_next_char): Use it to validate the bidi type
assigned to the iterator.
2009-08-15 Eli Zaretskii <eliz@gnu.org>
* bidi.c (bidi_initialize): Fix initialization of bidi_type_table.
* xdisp.c (set_iterator_to_next): Fix position setting after call
to bidi_get_next_char_visually.
2005-12-03 Eli Zaretskii <eliz@gnu.org>
* bidi.c: Include stdio.h unconditionally. Fix and elaborate
commentary. Add Copyright blurb.
2004-03-08 Kenichi Handa <handa@m17n.org>
* xdisp.c (reseat_1): Call bidi_init_it with a previous position.
* bidi.c (bidi_init_it): Set bidi_it->ch_len even if POS > 0.
2004-03-04 Kenichi Handa <handa@m17n.org>
The following changes are to support for bi-directional text
display.
* Makefile.in (obj): Include bidi.o.
(bidi.o): New target.
* bidi.c: New file.
* buffer.h (struct buffer): New member bidi_display_reordering.
* buffer.c (init_buffer_once): Initialize bidi_display_reordering.
(syms_of_buffer): Declarations of Lisp variables
default-bidi-display-reordering and bidi-display-reordering.
* dispextern.h (BIDI_MAXLEVEL): New macro.
(bidi_type_t, bidi_dir_t): New types.
(bidi_saved_info, bidi_stack, bidi_it): New structs.
(struct it): New members bidi_p and bidi_it.
(bidi_init_it): Extern it.
(bidi_get_next_char_visually): Extern it.
* dispnew.c (direct_output_forward_char): Give up if we need bidi
processing or buffer's direction is right-to-left.
* xdisp.c (init_iterator): Initialize it->bidi_p.
(reseat_1): Cal bidi_init_it and bidi_get_next_char_visually if
necessary.
(set_iterator_to_next): Cal bidi_get_next_char_visually if
necessary.
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