* Makefile.in (LIBX11_SYSTEM): Remove.
* s/msdos.h (LIBX11_SYSTEM): Do not define, define LIBS_SYSTEM
instead.
* configure.in: Remove all references to LIBX11_SYSTEM.
* Makefile.in (LIBTIFF, LIBJPEG, LIBPNG, LIBGIF, LIBXPM, XFT_LIBS):
Define as Makefile variables.
(LIBX): Use above variables rather than directly using autoconf.
* xterm.c:
* process.c:
* emacs.c: Use HAVE_SYS_IOCTL_H instead of BSD_SYSTEM as a guard
for including <sys/ioctl.h>.
* sysdep.c (wait_without_blocking): Remove BSD_SYSTEM case, this
code is only used for MSDOS.
http://lists.gnu.org/archive/html/emacs-devel/2010-03/msg01456.html
* image.c: Add `Qextension_data'.
(syms_of_image): Initialize and staticpro `Qextension_data'.
(Fimage_metadata): Rename from `Fimage_extension_data'.
(gif_load): Put GIF extension data to the property
`Qextension_data'.
* image.el (image-animated-p): Use `image-metadata' instead of
`image-extension-data'. Get GIF extenstion data from metadata
property `extension-data'.
Makefile.in (obj): Include bidi.o.
(bidi.o): New target.
makefile.w32-in (OBJ1): Add $(BLD)/bidi.$(O).
($(BLD)/bidi.$(O)): New target.
bidi.c: New file.
buffer.h (struct buffer): New members bidi_display_reordering
and bidi_paragraph_direction.
buffer.c (init_buffer_once): Initialize bidi_display_reordering
and bidi_paragraph_direction.
(syms_of_buffer): Declare Lisp variables bidi-display-reordering
and bidi-paragraph-direction.
(Fbuffer_swap_text): Swap the values of
bidi_display_reordering and bidi_paragraph_direction.
dispextern.h (BIDI_MAXLEVEL, BIDI_AT_BASE_LEVEL): New macros.
(bidi_type_t, bidi_dir_t): New types.
(bidi_saved_info, bidi_stack, bidi_it): New structures.
(struct it): New members bidi_p, bidi_it, paragraph_embedding,
prev_stop, base_level_stop, and eol_pos.
(bidi_init_it, bidi_get_next_char_visually): New prototypes.
(IT_STACK_SIZE): Enlarge to 5.
(struct glyph_row): New member reversed_p.
<string_buffer_position>: Update prototype.
(PRODUCE_GLYPHS): Set the reversed_p flag in the iterator's
glyph_row if bidi_it.paragraph_dir == R2L.
(struct glyph): New members resolved_level and bidi_type.
dispnew.c (direct_output_forward_char): Give up if we need bidi
processing or buffer's direction is right-to-left.
(prepare_desired_row): Preserve the reversed_p flag.
(row_equal_p): Compare the reversed_p attributes as well.
xdisp.c (init_iterator): Initialize it->bidi_p. Call
bidi_init_it and set it->paragraph_embedding from the current
buffer's value of bidi_paragraph_direction.
(reseat_1): Initialize bidi_it.first_elt.
(set_iterator_to_next, next_element_from_buffer): Use the value of
paragraph_embedding to determine the paragraph direction.
(set_iterator_to_next): Under bidi reordering, call
bidi_get_next_char_visually. Call bidi_paragraph_init if the
new_paragraph flag is set in the bidi iterator.
(next_element_from_buffer): If bidi_it.first_elt is set,
initialize paragraph direction and find the first character to
display in the visual order. If reseated to a middle of a line,
prime the bidi iterator starting at the line's beginning. Handle
the situation where we overstepped stop_charpos due to
non-linearity of the bidi iteration. Likewise for when we back up
beyond the previous stop_charpos. When moving across stop_charpos,
record it in prev_stop.
(display_line): Set row->end and it->start for the next row to the
next character in logical order. Always extend reversed_p rows to
the end of line, even if they end at ZV. Copy the reversed_p flag
to the next glyph row. Keep calling set_cursor_from_row for
bidi-reordered rows even if we already have a possible candidate
for cursor position. Set row_end after all the row's glyphs have
been produced, by looping over the glyphs. Record the position
after EOL in it->eol_pos, and use it to set end_pos of the last
row produced for a continued line.
<Qright_to_left, Qleft_to_right>: New variables.
(syms_of_xdisp): Initialize and staticpro them.
(string_buffer_position_lim): New function.
(string_buffer_position): Most of code moved to
string_buffer_position_lim. Last argument and return value are
now EMACS_INT; all callers changed.
(set_cursor_from_row): Rewritten to support bidirectional text and
reversed glyph rows.
(text_outside_line_unchanged_p, try_window_id): Disable
optimizations if we are reordering bidirectional text and the
paragraph direction can be affected by the change.
(append_glyph, append_composite_glyph)
(produce_image_glyph, append_stretch_glyph): Set the
resolved_level and bidi_type members of each glyph.
(append_glyph): If the glyph row is reversed, prepend the glyph
rather than appending it.
(handle_stop_backwards): New function.
(reseat_1, pop_it, push_it): Set prev_stop and base_level_stop.
(reseat): call handle_stop_backwards to recompute prev_stop and
base_level_stop for the new position.
(handle_invisible_prop): Under bidi iteration, skip invisible text
using bidi_get_next_char_visually. If we are `reseat'ed, init the
paragraph direction. Update IT->prev_stop after skipping
invisible text.
(move_it_in_display_line_to): New variables prev_method
and prev_pos. Compare for strict equality in
BUFFER_POS_REACHED_P.
(try_cursor_movement): Examine all the candidate rows that occlude
point, to return the best match. If rows are bidi-reordered
and point moved backwards, back up to the row that is not a
continuation line, and start looking for a suitable row from
there.
term.c (append_glyph): Reverse glyphs by pre-pending them,
rather than appending, if the glyph_row's reversed_p flag is set.
Set the resolved_level and bidi_type members of each glyph.
.gdbinit (pbiditype): New command.
(pgx): Use it to display bidi level and type of the glyph.
(pitx): Display some bidi information about the iterator.
(prowlims, pmtxrows): New commands.
files.el: Make bidi-display-reordering safe variable for boolean
values.
mule.texi (International): Mention support of bidirectional editing.
(Bidirectional Editing): New section.
HELLO: Reorder Arabic and Hebrew into logical order, and
insert RLM before the opening paren, to make the display more
reasonable. Add setting for bidi-display-reordering in the local
variables section.
NEWS: Mention initial support for bidirectional editing.
Patch from Adrian Robert, see
http://lists.gnu.org/archive/html/emacs-devel/2010-03/msg01391.html
* xdisp.c (x_consider_frame_title, update_window_cursor): Remove
HAVE_NS conditionals.
(prepare_menu_bars)[HAVE_NS]: Call ns_set_doc_edited.
* nsfns.m (x_implicitly_set_name): If frame-title-format is t, use
filename for the title.
(ns_set_doc_edited): Do nothing if the selected window is a
minibuffer window.
* nsterm.h: Add prototypes for ns_set_name_as_filename and
ns_set_doc_edited.
* nsterm.m: Remove unneeded prototype.
doc/emacs/mule.texi (International): Mention support of
bidirectional editing.
(Bidirectional Editing): New section.
etc/HELLO: Reorder Arabic and Hebrew into logical order, and
insert RLM before the opening paren, to make the display more
reasonable. Add setting for bidi-display-reordering in the local
variables section.
lisp/files.el: Make bidi-display-reordering safe variable for
boolean values.
src/xdisp (append_glyph): If the glyph row is reversed, prepend the
glyph rather than appending it.
src/makefile.w32-in (OBJ1): Add $(BLD)/bidi.$(O).
($(BLD)/bidi.$(O)): New target.
bidi.c (bidi_get_next_char_visually): Improve commentary.
dispextern.h (PRODUCE_GLYPHS): Set the reversed_p flag in the
iterator's glyph_row here.
xdisp.c (handle_invisible_prop, set_iterator_to_next)
(next_element_from_buffer): Don't set the reversed_p flag in the
iterator's glyph_row here.
* atimer.c (set_alarm): Remove dead code, all USG systems define
POSIX_SIGNALS.
* data.c (arith_error): Likewise.
* keyboard.c (input_available_signal, handle_user_signal)
(interrupt_signal): Likewise.
* process.c (sigchld_handler): Likewise.
(create_process): Remove if 0 code. Remove HPUX conditional when
!defined (POSIX_SIGNALS), it cannot be true.
* syssignal.h: Remove USG5_4 and USG conditionals when
!POSIX_SIGNALS, they cannot be true.
