* lisp/subr.el (make-composed-keymap): Move from C. Change calling
convention, and improve docstring to bring attention to a subtle point.
* lisp/minibuffer.el (completing-read-default): Adjust accordingly.
src/dispextern.h (struct bidi_it): New member disp_prop_p.
src/xdisp.c: Remove one-slot cache of display string positions.
(compute_display_string_pos): Accept an additional argument
DISP_PROP_P; callers changed. Scan at most 5K characters forward
for a display string or property. If found, set DISP_PROP_P
non-zero.
src/bidi.c (bidi_fetch_char): Accept an additional argument
DISP_PROP_P, and pass it to compute_display_string_pos. Only
handle text covered by a display string if DISP_PROP_P is returned
non-zero. All callers of bidi_fetch_char changed.
src/xdisp.c (forward_to_next_line_start): Accept additional argument
BIDI_IT_PREV, and store into it the state of the bidi iterator had
on the newline.
(reseat_at_next_visible_line_start): Use the bidi iterator state
returned by forward_to_next_line_start to restore the state of
it->bidi_it after backing up to previous newline. (Bug#9212)
* src/nsfont.m (nsfont_open): Remove assignment to voffset and
unnecessary vars hshink, expand, hd, full_height, min_height.
(nsfont_draw): Use s->ybase as baseline for glyph drawing.
* src/nsterm.h (nsfont_info): Remove voffset field.
* src/nsfont.m (nsfont_open): Use underline position provided by font,
instead of hard-coded value of 2.
(nsfont_draw): Call ns_draw_text_decoration instead.
* src/nsterm.h: Add declaration for ns_draw_text_decoration.
* src/nsterm.m (ns_draw_text_decoration): New function for drawing
underline, overline, and strike-through.
(ns_dumpglyphs_image, ns_dumpglyphs_stretch): Add call to
ns_draw_text_decoration. Change treatment of cursor drawing to
accomodate underlining, etc.
src/buffer.c (init_buffer_once, syms_of_buffer): Set
bidi-display-reordering to t by default.
doc/emacs/mule.texi (Bidirectional Editing): Document the fact that
bidi-display-reordering is t by default.
lispref/display.texi (Bidirectional Display): Document the fact that
bidi-display-reordering is t by default.
src/xdisp.c (compute_display_string_pos): Fix logic of caching
previous display string position. Initialize cached_prev_pos to -1.
Fixes slow-down at the beginning of a buffer.
src/xdisp.c (move_it_in_display_line_to): Record the best matching
position for TO_CHARPOS while scanning the line, and restore it on
exit if none of the characters scanned was an exact match. Fixes
vertical-motion and pos-visible-in-window-p under bidi redisplay
when exact match is impossible due to invisible text, and the
lines are truncated.
src/xdisp.c (move_it_in_display_line_to): Record the best matching
position for TO_CHARPOS while scanning the line, and restore it on
exit if none of the characters scanned was an exact match. Fixes
vertical-motion and pos-visible-in-window-p when exact match is
impossible due to invisible text, and the lines are truncated.
src/xdisp.c (compute_stop_pos_backwards): New function.
(next_element_from_buffer): Call compute_stop_pos_backwards to
find a suitable prev_stop when we find ourselves before
base_level_stop.
(reseat): Don't look for prev_stop, as that could mean a very long
run.
<cached_disp_pos, cached_disp_buffer, cached_disp_modiff>
<cached_disp_overlay_modiff>: Cache for last found display string
position.
(compute_display_string_pos): Return the cached position if asked
about the same buffer in the same area of character positions, and
the buffer wasn't changed since the time the display string
position was cached.
src/xdisp.c (compute_stop_pos_backwards): New function.
(handle_stop_backwards): Revert last change.
(next_element_from_buffer): Call compute_stop_pos_backwards to
find a suitable prev_stop when we find ourselves before
base_level_stop. Remove the funky search for 1000 character
positions back.
