2009-09-27 Eli Zaretskii * xdisp.c (next_element_from_buffer): If called not at line beginning, start bidi iteration from line beginning. * bidi.c (bidi_paragraph_init): Use bidi_overriding_paragraph_direction instead of a literal zero. (bidi_initialize): Fix some character types, per Unicode 5.x. (bidi_get_type): Abort if called with invalid character code. * dispextern.h: Add prototype of bidi_mirror_char. * xdisp.c (get_next_display_element): Mirror characters whose resolved type is STRONG_R. 2009-09-26 Eli Zaretskii * bidi.c (bidi_paragraph_init): Don't set bidi_it->ch_len. Abort if called not at beginning of a new paragraph. (bidi_get_next_char_visually): Prepare and use a sentinel iterator state when first_elt flag is set. * dispextern.h (struct bidi_it): New struct member first_elt. * bidi.c (bidi_init_it): Initialize bidi_it->first_elt. (bidi_copy_it): Don't copy the first_elt flag. * xdisp.c (reseat_1): Initialize bidi_it.first_elt. Move bidi scan start code from here... (next_element_from_buffer): ...to here. Use bidi_it.first_elt flag. 2009-09-20 Eli Zaretskii * xdisp.c (reseat_1): Handle position < BEGV. * bidi.c (bidi_paragraph_init): Set bidi_it->ch_len. Handle ZV. (bidi_init_it): Don't initialize bidi_it->ch_len. (bidi_resolve_explicit_1): Abort if bidi_it->ch_len was not initialized. (bidi_at_paragraph_end, bidi_resolve_explicit_1) (bidi_resolve_weak, bidi_level_of_next_char): Handle bytepos at ZV_BYTE. (bidi_resolve_explicit_1): Handle position < BEGV. 2009-09-19 Eli Zaretskii * xdisp.c (init_iterator): Call bidi_init_it. Set bidi_it->bytepos if buffer position specified. (reseat_1): Don't call bidi_init_it. Call bidi_paragraph_init instead. Move back to preceding character before the call to bidi_get_next_char_visually. * bidi.c: Remove all STANDALONE parts. (bidi_init_it): Init bidi_it->charpos and bidi_it->bytepos to -1. Don't call bidi_paragraph_init. Change arguments. (bidi_paragraph_init): Remove code for negative pos. * dispextern.h : Rename orig_type to type_after_w1 and pristine_type to orig_type. 2009-09-12 Eli Zaretskii * 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 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 * 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 * bidi.c : Default to L2R, for now. 2009-08-22 Eli Zaretskii * 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 * 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 * bidi.c: Include stdio.h unconditionally. Fix and elaborate commentary. Add Copyright blurb. 2004-03-08 Kenichi Handa * 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 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. ;; Local Variables: ;; coding: utf-8 ;; add-log-time-zone-rule: t ;; End: Copyright (C) 2007, 2008, 2009 Free Software Foundation, Inc. This file is part of GNU Emacs. 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