GitLab

(composition_compute_stop_pos): Fix handling of static composition.
(Fcomposition_get_gstring): Check FROM and TO at first.

not associated with a window, ignore the automatic composition.
(find_automatic_composition): Likewise.

at most 500 characters ahead.  If we reach the limit or find a
newline, set cmp_it->ch to -2 and return 0.
(composition_reseat_it): Handle the case that cmp_it->ch is -2.

(composition_compute_stop_pos): Set cmp_it->lookback.
(composition_reseat_it): Check lookback count.
(struct position_record): New struct.
(FORWARD_CHAR, BACKWARD_CHAR, CHAR_COMPOSABLE_P): New macros.
(find_automatic_composition): New function.
(composition_adjust_point): Use find_automatic_composition.

* fileio.c (report_file_error):
* composite.c (composition_update_it): Yet another int/Lisp_Oject mixup.

(Vcomposition_function_table)
(get_composition_id): Don't handle COMPOSITION_WITH_GLYPH_STRING.
(gstring_hash_table, gstring_work, gstring_work_headers): New
variables.
(gstring_lookup_cache, composition_gstring_put_cache)
(composition_gstring_from_id, composition_gstring_p)
(composition_gstring_width, fill_gstring_header)
(fill_gstring_body, autocmp_chars, composition_compute_stop_pos)
(composition_reseat_it, composition_update_it)
(composition_adjust_point, Fcomposition_get_gstring): New
functions.
(syms_of_composite): Initialize gstring_hash_table, gstrint_work,
and gstring_work_headers.  DEFVAR_LISP composition-function-table.
Defsubr compostion_get_gstring.

conditionals.  Don't check enable_font_backend.  Delete all codes
used only when USE_FONT_BACKEND is not defined.

auto-composition-function.

composition specially.

compositions.

component.

enable_font_backend is nonzero, accept the composition method
COMPOSITION_WITH_GLYPH_STRING.

Unconditionally reload `ptr' and `pend' after eval.

Improve argument/docstring consistency.

* eval.c (do_autoload):
* macmenu.c (set_frame_menubar):
* process.c (read_process_output, exec_sentinel):
* xmenu.c (set_frame_menubar):
* xdisp.c (prepare_menu_bars, update_menu_bar, update_tool_bar):
* w32menu.c (set_frame_menubar):
Use record_unwind_save_match_data.
Rename restore_match_data to restore_search_regs.