annotate src/cmdloop.c @ 1204:e22b0213b713

[xemacs-hg @ 2003-01-12 11:07:58 by michaels] modules/ChangeLog: 2002-12-16 Ben Wing <ben@xemacs.org> * postgresql/postgresql.c: remove ifdef USE_KKCC. src/ChangeLog: 2003-01-08 Mike Sperber <mike@xemacs.org> * console.h (CDFW_CONSOLE): Don't lead to a crash if we're dealing with a dead window/frame/device/console. 2002-12-20 Mike Sperber <mike@xemacs.org> * ui-gtk.c: Fix typo from Ben's patch: emacs_ffi_data is a typedef, not a struct. emacs_gtk_object_data is a typedef, not a struct. * gtk-glue.c (gdk_event_to_emacs_event): Fix typos from Ben's patch: le -> emacs_event + rearrange the code. * event-gtk.c (gtk_event_to_emacs_event): Fix typos from Ben's patch: ..._UNDERLYING_GDK_EVENT -> ..._GDK_EVENT, ev -> key_event. * device-gtk.c: Fix typo from Ben's patch: x_keysym_map_hash_table -> x_keysym_map_hashtable. 2002-12-19 Mike Sperber <mike@xemacs.org> * menubar-x.c (set_frame_menubar): Initialize protect_me field of popup_data. 2002-12-16 Ben Wing <ben@xemacs.org> Major cleanup of KKCC, etc. KKCC, pdump-related: -- descriptions are written for all objects. this required some changes in the format of some objects, e.g. extents, popup-data, coding system, lstream, lcrecord-list. -- KKCC now handles weakness in markers, hash tables, elsewhere correctly (formerly, you'd eventually get a stack overflow due to endlessly expanding markers). -- textual changes: lrecord_description -> memory_description, struct_description -> sized_memory_description. -- extensive comment describing descriptions and pdump. -- redo XD_UNION so it works inline and change its format to provide sufficient info for pdump. implement XD_UNION in pdump. also add XD_UNION_DYNAMIC_SIZE, which works like XD_UNION except for when auto-computing structure sizes. -- add support for XD_INDIRECT in description offsets (used by extents). -- add support for "description maps", allowing for indirect descriptions that are retrieved from an object at run-time. this generalizes XD_CODING_SYSTEM_END, XD_SPECIFIER_END, etc., which have now been eliminated. -- add a fifth field "flags" to memory_description, to support flags that can be specified for this particular line. Currently defined flags are XD_FLAG_NO_KKCC (KKCC should ignore this entry; useful for the weakness above in markers, etc.), XD_FLAG_NO_PDUMP (pdump should ignore this entry), XD_FLAG_UNION_DEFAULT_ENTRY (in union maps, this specifies a "default" entry for all remaining values), and XD_FLAG_FREE_LISP_OBJECT (for use with lcrecord-lists). -- clean up the kkcc-itis in events, so that the differences between event data as separate objects and as a union are now minimized to a small number of places. with the new XD_UNION, we no longer need event data as separate objects, so this code is no longer ifdef USE_KKCC, but instead ifdef EVENT_DATA_AS_OBJECTS, not used by default. make sure that we explicitly free the separate event data objects when no longer in use, to maintain the invariant the event processing causes no consing. -- also remove other USE_KKCC ifdefs when not necessary. -- allow for KKCC compilation under MS Windows. -- fix README.kkcc. -- dump_add_root_object -> dump_add_root_lisp_object. -- implement dump_add_root_block and use this to handle dump_add_opaque. -- factor out some code duplicated in kkcc and pdump. Other allocation/object-related: -- change various *slots.h so MARKED_SLOT() call no longer includes semicolon. -- free_marker() takes a Lisp_Object not a direct pointer. -- make bit vectors lcrecords, like vectors, and eliminate code that essentially duplicated the lcrecord handling. -- additional asserts in FREE_FIXED_TYPE, formerly duplicated in the various callers of this. -- all lcrecord allocation functions now zero out the returned lcrecords. unnecessary calls to zero_lcrecord removed. add long comment describing these functions. -- extract out process and coding system slots, like for buffers, frames, etc. -- lcrecords now set the type of items sitting on the free list to lcrecord_type_free. -- changes to the way that gap arrays are allocated, for kkcc's benefit -- now, one single memory block with a stretchy array on the end, instead of a separate block holding the array. Error-checking-related: -- now can compile with C++ under MS Windows. clean up compile errors discovered that way. (a few were real problems) -- add C++ error-checking code to verify problems with mismatched GCPRO/UNGCPRO. (there were a few in the kkcc code.) add long comment about how to catch insufficient GCPRO (yes, it's possible using C++). -- add debug_p4(), a simple object printer, when debug_print() doesn't work. -- add dp() and db() as short synonyms of debug_print(), debug_backtrace(). -- `print' tries EXTREMELY hard to avoid core dumping when printing when crashing or from debug_print(), and tries as hard as it reasonably can in other situations. -- Correct the message output upon crashing to be more up-to-date. Event-related: -- document event-matches-key-specifier-p better. -- generalize the dispatch queues formerly duplicated in the various event implementations. add event methods to drain pending events. generalize and clean up QUIT handling, removing event-specific quit processing. allow arbitrary keystrokes, not just ASCII, to be the QUIT char. among other things, this should fix some longstanding bugs in X quit handling. long comment describing the various event queues. -- implement delaying of XFlush() if there are pending expose events. SOMEONE PLEASE TRY THIS OUT. -- Fix `xemacs -batch -l dunnet' under Cygwin. Try to fix under MS Windows but not quite there yet. Other: -- class -> class_ and no more C++ games with this item. new -> new_ in the lwlib code, so far not elsewhere. -- use `struct htentry' not `struct hentry' in elhash.c to avoid debugger confusion with hash.c. -- new macros ALIST_LOOP_3, ALIST_LOOP_4. * README.kkcc: * alloc.c: * alloc.c (deadbeef_memory): * alloc.c (allocate_lisp_storage): * alloc.c (copy_lisp_object): * alloc.c (ALLOCATE_FIXED_TYPE_1): * alloc.c (FREE_FIXED_TYPE): * alloc.c (make_vector_internal): * alloc.c (make_bit_vector_internal): * alloc.c (make_key_data): * alloc.c (make_button_data): * alloc.c (make_motion_data): * alloc.c (make_process_data): * alloc.c (make_timeout_data): * alloc.c (make_magic_data): * alloc.c (make_magic_eval_data): * alloc.c (make_eval_data): * alloc.c (make_misc_user_data): * alloc.c (struct string_chars_block): * alloc.c (mark_lcrecord_list): * alloc.c (make_lcrecord_list): * alloc.c (alloc_managed_lcrecord): * alloc.c (free_managed_lcrecord): * alloc.c (alloc_automanaged_lcrecord): * alloc.c (staticpro_1): * alloc.c (staticpro): * alloc.c (lispdesc_indirect_count_1): * alloc.c (lispdesc_indirect_description_1): * alloc.c (lispdesc_one_description_line_size): * alloc.c (lispdesc_structure_size): * alloc.c (mark_object_maybe_checking_free): * alloc.c (mark_with_description): * alloc.c (mark_struct_contents): * alloc.c (mark_object): * alloc.c (tick_lcrecord_stats): * alloc.c (free_cons): * alloc.c (free_key_data): * alloc.c (free_button_data): * alloc.c (free_motion_data): * alloc.c (free_process_data): * alloc.c (free_timeout_data): * alloc.c (free_magic_data): * alloc.c (free_magic_eval_data): * alloc.c (free_eval_data): * alloc.c (free_misc_user_data): * alloc.c (free_marker): * alloc.c (compact_string_chars): * alloc.c (gc_sweep): * alloc.c (garbage_collect_1): * alloc.c (Fgarbage_collect): * alloc.c (common_init_alloc_early): * alloc.c (init_alloc_early): * alloc.c (init_alloc_once_early): * buffer.c: * buffer.c (mark_buffer): * buffer.c (MARKED_SLOT): * buffer.c (cleanup_buffer_undo_lists): * buffer.c (Fget_file_buffer): * buffer.h (MARKED_SLOT): * bufslots.h: * bytecode.c: * callint.c: * casetab.c: * chartab.c: * chartab.c (symbol_to_char_table_type): * cmdloop.c: * cmdloop.c (Fcommand_loop_1): * config.h.in (new): * conslots.h: * console-gtk-impl.h (struct gtk_frame): * console-impl.h: * console-impl.h (struct console): * console-impl.h (MARKED_SLOT): * console-impl.h (CONSOLE_QUIT_EVENT): * console-msw-impl.h (XM_BUMPQUEUE): * console-msw.c (write_string_to_mswindows_debugging_output): * console-msw.h: * console-stream-impl.h: * console-stream-impl.h (struct stream_console): * console-stream.c: * console-stream.c (stream_init_console): * console-stream.h: * console-tty.c: * console-tty.h: * console-x.h: * console.c: * console.c (mark_console): * console.c (MARKED_SLOT): * console.c (allocate_console): * console.c (get_console_variant): * console.c (create_console): * console.c (delete_console_internal): * console.c (Fset_input_mode): * console.c (Fcurrent_input_mode): * console.c (common_init_complex_vars_of_console): * console.h: * console.h (console_variant): * console.h (device_metrics): * data.c: * data.c (Faref): * data.c (Faset): * data.c (decode_weak_list_type): * database.c: * debug.c (xemacs_debug_loop): * debug.c (FROB): * debug.c (Fadd_debug_class_to_check): * debug.c (Fdelete_debug_class_to_check): * debug.c (Fset_debug_classes_to_check): * debug.c (Fset_debug_class_types_to_check): * debug.c (Fdebug_types_being_checked): * debug.h (DASSERT): * device-gtk.c: * device-impl.h (struct device): * device-impl.h (MARKED_SLOT): * device-msw.c: * device-x.c: * device-x.c (x_init_device_class): * device-x.c (x_comp_visual_info): * device-x.c (x_try_best_visual_class): * device-x.c (x_init_device): * device-x.c (construct_name_list): * device-x.c (x_get_resource_prefix): * device-x.c (Fx_get_resource): * device-x.c (Fx_display_visual_class): * device.c: * device.c (MARKED_SLOT): * device.c (allocate_device): * device.c (Fmake_device): * device.c (delete_device_internal): * device.c (Fset_device_class): * device.h: * devslots.h: * devslots.h (MARKED_SLOT): * dialog-msw.c: * dired-msw.c (mswindows_ls_sort_fcn): * dired-msw.c (mswindows_get_files): * dired-msw.c (mswindows_format_file): * doprnt.c (parse_doprnt_spec): * dumper.c: * dumper.c (struct): * dumper.c (dump_add_root_block): * dumper.c (dump_add_root_struct_ptr): * dumper.c (dump_add_root_lisp_object): * dumper.c (pdump_struct_list_elt): * dumper.c (pdump_get_entry_list): * dumper.c (pdump_backtrace): * dumper.c (pdump_bump_depth): * dumper.c (pdump_register_sub): * dumper.c (pdump_register_object): * dumper.c (pdump_register_struct_contents): * dumper.c (pdump_register_struct): * dumper.c (pdump_store_new_pointer_offsets): * dumper.c (pdump_dump_data): * dumper.c (pdump_reloc_one): * dumper.c (pdump_allocate_offset): * dumper.c (pdump_scan_by_alignment): * dumper.c (pdump_dump_root_blocks): * dumper.c (pdump_dump_rtables): * dumper.c (pdump_dump_root_lisp_objects): * dumper.c (pdump): * dumper.c (pdump_load_finish): * dumper.c (pdump_file_get): * dumper.c (pdump_resource_get): * dumper.c (pdump_load): * editfns.c (save_excursion_restore): * editfns.c (user_login_name): * editfns.c (save_restriction_restore): * elhash.c: * elhash.c (htentry): * elhash.c (struct Lisp_Hash_Table): * elhash.c (HTENTRY_CLEAR_P): * elhash.c (LINEAR_PROBING_LOOP): * elhash.c (check_hash_table_invariants): * elhash.c (mark_hash_table): * elhash.c (hash_table_equal): * elhash.c (print_hash_table_data): * elhash.c (free_hentries): * elhash.c (make_general_lisp_hash_table): * elhash.c (decode_hash_table_weakness): * elhash.c (decode_hash_table_test): * elhash.c (Fcopy_hash_table): * elhash.c (resize_hash_table): * elhash.c (pdump_reorganize_hash_table): * elhash.c (find_htentry): * elhash.c (Fgethash): * elhash.c (Fputhash): * elhash.c (remhash_1): * elhash.c (Fremhash): * elhash.c (Fclrhash): * elhash.c (copy_compress_hentries): * elhash.c (elisp_maphash_unsafe): * elhash.c (finish_marking_weak_hash_tables): * elhash.c (prune_weak_hash_tables): * elhash.h: * emacs.c: * emacs.c (main_1): * emacs.c (main): * emacs.c (shut_down_emacs): * emodules.h (dump_add_root_lisp_object): * eval.c: * eval.c (unwind_to_catch): * eval.c (maybe_signal_error_1): * eval.c (maybe_signal_continuable_error_1): * eval.c (maybe_signal_error): * eval.c (maybe_signal_continuable_error): * eval.c (maybe_signal_error_2): * eval.c (maybe_signal_continuable_error_2): * eval.c (maybe_signal_ferror): * eval.c (maybe_signal_continuable_ferror): * eval.c (maybe_signal_ferror_with_frob): * eval.c (maybe_signal_continuable_ferror_with_frob): * eval.c (maybe_syntax_error): * eval.c (maybe_sferror): * eval.c (maybe_invalid_argument): * eval.c (maybe_invalid_constant): * eval.c (maybe_invalid_operation): * eval.c (maybe_invalid_change): * eval.c (maybe_invalid_state): * eval.c (Feval): * eval.c (call_trapping_problems): * eval.c (call_with_suspended_errors): * eval.c (warn_when_safe_lispobj): * eval.c (warn_when_safe): * eval.c (vars_of_eval): * event-Xt.c: * event-Xt.c (maybe_define_x_key_as_self_inserting_character): * event-Xt.c (x_to_emacs_keysym): * event-Xt.c (x_event_to_emacs_event): * event-Xt.c (emacs_Xt_enqueue_focus_event): * event-Xt.c (emacs_Xt_format_magic_event): * event-Xt.c (emacs_Xt_compare_magic_event): * event-Xt.c (emacs_Xt_hash_magic_event): * event-Xt.c (emacs_Xt_handle_magic_event): * event-Xt.c (Xt_timeout_to_emacs_event): * event-Xt.c (Xt_process_to_emacs_event): * event-Xt.c (signal_special_Xt_user_event): * event-Xt.c (emacs_Xt_next_event): * event-Xt.c (emacs_Xt_event_handler): * event-Xt.c (emacs_Xt_drain_queue): * event-Xt.c (emacs_Xt_event_pending_p): * event-Xt.c (check_if_pending_expose_event): * event-Xt.c (reinit_vars_of_event_Xt): * event-Xt.c (vars_of_event_Xt): * event-gtk.c: * event-gtk.c (IS_MODIFIER_KEY): * event-gtk.c (emacs_gtk_format_magic_event): * event-gtk.c (emacs_gtk_compare_magic_event): * event-gtk.c (emacs_gtk_hash_magic_event): * event-gtk.c (emacs_gtk_handle_magic_event): * event-gtk.c (gtk_to_emacs_keysym): * event-gtk.c (gtk_timeout_to_emacs_event): * event-gtk.c (gtk_process_to_emacs_event): * event-gtk.c (dragndrop_data_received): * event-gtk.c (signal_special_gtk_user_event): * event-gtk.c (emacs_gtk_next_event): * event-gtk.c (gtk_event_to_emacs_event): * event-gtk.c (generic_event_handler): * event-gtk.c (emacs_shell_event_handler): * event-gtk.c (emacs_gtk_drain_queue): * event-gtk.c (emacs_gtk_event_pending_p): * event-gtk.c (reinit_vars_of_event_gtk): * event-gtk.c (vars_of_event_gtk): * event-msw.c: * event-msw.c (struct winsock_stream): * event-msw.c (winsock_reader): * event-msw.c (winsock_writer): * event-msw.c (mswindows_enqueue_dispatch_event): * event-msw.c (mswindows_enqueue_misc_user_event): * event-msw.c (mswindows_enqueue_magic_event): * event-msw.c (mswindows_enqueue_process_event): * event-msw.c (mswindows_enqueue_mouse_button_event): * event-msw.c (mswindows_enqueue_keypress_event): * event-msw.c (mswindows_dequeue_dispatch_event): * event-msw.c (emacs_mswindows_drain_queue): * event-msw.c (mswindows_need_event_in_modal_loop): * event-msw.c (mswindows_need_event): * event-msw.c (mswindows_wm_timer_callback): * event-msw.c (dde_eval_string): * event-msw.c (Fdde_alloc_advise_item): * event-msw.c (mswindows_dde_callback): * event-msw.c (mswindows_wnd_proc): * event-msw.c (remove_timeout_mapper): * event-msw.c (emacs_mswindows_remove_timeout): * event-msw.c (emacs_mswindows_event_pending_p): * event-msw.c (emacs_mswindows_format_magic_event): * event-msw.c (emacs_mswindows_compare_magic_event): * event-msw.c (emacs_mswindows_hash_magic_event): * event-msw.c (emacs_mswindows_handle_magic_event): * event-msw.c (emacs_mswindows_select_console): * event-msw.c (emacs_mswindows_unselect_console): * event-msw.c (reinit_vars_of_event_mswindows): * event-msw.c (vars_of_event_mswindows): * event-stream.c: * event-stream.c (mark_command_builder): * event-stream.c (reset_command_builder_event_chain): * event-stream.c (allocate_command_builder): * event-stream.c (copy_command_builder): * event-stream.c (command_builder_append_event): * event-stream.c (event_stream_event_pending_p): * event-stream.c (event_stream_force_event_pending): * event-stream.c (maybe_read_quit_event): * event-stream.c (event_stream_drain_queue): * event-stream.c (remove_quit_p_event): * event-stream.c (event_stream_quit_p): * event-stream.c (echo_key_event): * event-stream.c (maybe_kbd_translate): * event-stream.c (execute_help_form): * event-stream.c (event_stream_generate_wakeup): * event-stream.c (enqueue_dispatch_event): * event-stream.c (enqueue_magic_eval_event): * event-stream.c (Fenqueue_eval_event): * event-stream.c (enqueue_misc_user_event): * event-stream.c (enqueue_misc_user_event_pos): * event-stream.c (next_event_internal): * event-stream.c (Fnext_event): * event-stream.c (Faccept_process_output): * event-stream.c (execute_internal_event): * event-stream.c (munge_keymap_translate): * event-stream.c (command_builder_find_leaf_no_mule_processing): * event-stream.c (command_builder_find_leaf): * event-stream.c (lookup_command_event): * event-stream.c (is_scrollbar_event): * event-stream.c (execute_command_event): * event-stream.c (Fdispatch_event): * event-stream.c (Fread_key_sequence): * event-stream.c (dribble_out_event): * event-stream.c (vars_of_event_stream): * event-tty.c (tty_timeout_to_emacs_event): * event-tty.c (emacs_tty_next_event): * event-tty.c (emacs_tty_drain_queue): * event-tty.c (reinit_vars_of_event_tty): * event-unixoid.c: * event-unixoid.c (find_tty_or_stream_console_from_fd): * event-unixoid.c (read_event_from_tty_or_stream_desc): * event-unixoid.c (drain_tty_devices): * event-unixoid.c (poll_fds_for_input): * events.c: * events.c (deinitialize_event): * events.c (zero_event): * events.c (mark_event): * events.c (print_event_1): * events.c (print_event): * events.c (event_equal): * events.c (event_hash): * events.c (Fmake_event): * events.c (Fdeallocate_event): * events.c (Fcopy_event): * events.c (map_event_chain_remove): * events.c (character_to_event): * events.c (event_to_character): * events.c (Fevent_to_character): * events.c (format_event_object): * events.c (upshift_event): * events.c (downshift_event): * events.c (event_upshifted_p): * events.c (Fevent_live_p): * events.c (Fevent_type): * events.c (Fevent_timestamp): * events.c (CHECK_EVENT_TYPE): * events.c (CHECK_EVENT_TYPE2): * events.c (CHECK_EVENT_TYPE3): * events.c (Fevent_key): * events.c (Fevent_button): * events.c (Fevent_modifier_bits): * events.c (event_x_y_pixel_internal): * events.c (event_pixel_translation): * events.c (Fevent_process): * events.c (Fevent_function): * events.c (Fevent_object): * events.c (Fevent_properties): * events.c (syms_of_events): * events.c (vars_of_events): * events.h: * events.h (struct event_stream): * events.h (struct Lisp_Key_Data): * events.h (KEY_DATA_KEYSYM): * events.h (EVENT_KEY_KEYSYM): * events.h (struct Lisp_Button_Data): * events.h (EVENT_BUTTON_BUTTON): * events.h (struct Lisp_Motion_Data): * events.h (EVENT_MOTION_X): * events.h (struct Lisp_Process_Data): * events.h (EVENT_PROCESS_PROCESS): * events.h (struct Lisp_Timeout_Data): * events.h (EVENT_TIMEOUT_INTERVAL_ID): * events.h (struct Lisp_Eval_Data): * events.h (EVENT_EVAL_FUNCTION): * events.h (struct Lisp_Misc_User_Data): * events.h (EVENT_MISC_USER_FUNCTION): * events.h (struct Lisp_Magic_Eval_Data): * events.h (EVENT_MAGIC_EVAL_INTERNAL_FUNCTION): * events.h (struct Lisp_Magic_Data): * events.h (EVENT_MAGIC_UNDERLYING): * events.h (EVENT_MAGIC_GDK_EVENT): * events.h (struct Lisp_Event): * events.h (XEVENT_CHANNEL): * events.h (SET_EVENT_TIMESTAMP_ZERO): * events.h (SET_EVENT_CHANNEL): * events.h (SET_EVENT_NEXT): * events.h (XSET_EVENT_TYPE): * events.h (struct command_builder): * extents.c: * extents.c (gap_array_adjust_markers): * extents.c (gap_array_recompute_derived_values): * extents.c (gap_array_move_gap): * extents.c (gap_array_make_gap): * extents.c (gap_array_insert_els): * extents.c (gap_array_delete_els): * extents.c (gap_array_make_marker): * extents.c (gap_array_delete_marker): * extents.c (gap_array_move_marker): * extents.c (make_gap_array): * extents.c (free_gap_array): * extents.c (extent_list_num_els): * extents.c (extent_list_insert): * extents.c (mark_extent_auxiliary): * extents.c (allocate_extent_auxiliary): * extents.c (decode_extent_at_flag): * extents.c (verify_extent_mapper): * extents.c (symbol_to_glyph_layout): * extents.c (syms_of_extents): * faces.c: * file-coding.c: * file-coding.c (struct_detector_category_description =): * file-coding.c (detector_category_dynarr_description_1): * file-coding.c (struct_detector_description =): * file-coding.c (detector_dynarr_description_1): * file-coding.c (MARKED_SLOT): * file-coding.c (mark_coding_system): * file-coding.c (coding_system_extra_description_map): * file-coding.c (coding_system_description): * file-coding.c (allocate_coding_system): * file-coding.c (symbol_to_eol_type): * file-coding.c (Fcoding_system_aliasee): * file-coding.c (set_coding_stream_coding_system): * file-coding.c (struct convert_eol_coding_system): * file-coding.c (struct undecided_coding_system): * file-coding.c (undecided_mark_coding_stream): * file-coding.c (coding_category_symbol_to_id): * file-coding.c (struct gzip_coding_system): * file-coding.c (coding_system_type_create): * file-coding.h: * file-coding.h (struct Lisp_Coding_System): * file-coding.h (CODING_SYSTEM_SLOT_DECLARATION): * file-coding.h (coding_system_variant): * file-coding.h (struct coding_system_methods): * file-coding.h (DEFINE_CODING_SYSTEM_TYPE_WITH_DATA): * file-coding.h (INITIALIZE_CODING_SYSTEM_TYPE_WITH_DATA): * file-coding.h (struct coding_stream): * fileio.c (Fsubstitute_in_file_name): * floatfns.c: * fns.c: * fns.c (base64_encode_1): * frame-gtk.c: * frame-gtk.c (Fgtk_start_drag_internal): * frame-impl.h (struct frame): * frame-impl.h (MARKED_SLOT): * frame-msw.c: * frame-x.c: * frame-x.c (Fcde_start_drag_internal): * frame-x.c (Foffix_start_drag_internal): * frame.c: * frame.c (MARKED_SLOT): * frame.c (allocate_frame_core): * frame.c (delete_frame_internal): * frame.c (Fmouse_position_as_motion_event): * frameslots.h: * frameslots.h (MARKED_SLOT_ARRAY): * free-hook.c: * glyphs-msw.c (mswindows_widget_instantiate): * glyphs-x.c: * glyphs-x.c (convert_EImage_to_XImage): * glyphs.c: * glyphs.c (process_image_string_instantiator): * glyphs.c (mark_image_instance): * glyphs.c (allocate_image_instance): * glyphs.c (unmap_subwindow): * glyphs.c (map_subwindow): * glyphs.c (syms_of_glyphs): * glyphs.c (specifier_type_create_image): * glyphs.h: * glyphs.h (struct text_image_instance): * glyphs.h (struct Lisp_Image_Instance): * gmalloc.c: * gmalloc.c ("C"): * gpmevent.c (Freceive_gpm_event): * gpmevent.c (gpm_next_event_cb): * gpmevent.c (vars_of_gpmevent): * gtk-glue.c (gdk_event_to_emacs_event): * gtk-xemacs.c (gtk_xemacs_class_init): * gui-msw.c: * gui-msw.c (mswindows_handle_gui_wm_command): * gui-msw.c (mswindows_translate_menu_or_dialog_item): * gui-x.c: * gui-x.c (mark_popup_data): * gui-x.c (snarf_widget_value_mapper): * gui-x.c (gcpro_popup_callbacks): * gui-x.c (ungcpro_popup_callbacks): * gui-x.c (free_popup_widget_value_tree): * gui-x.c (popup_selection_callback): * gui-x.h: * gui-x.h (struct popup_data): * gui.c: * gui.c (allocate_gui_item): * gutter.c (decode_gutter_position): * hash.c (NULL_ENTRY): * indent.c (vmotion_1): * indent.c (vmotion_pixels): * input-method-motif.c (res): * input-method-xlib.c (IMInstantiateCallback): * input-method-xlib.c (XIM_init_device): * input-method-xlib.c (res): * intl-encap-win32.c: * intl-encap-win32.c (qxeSHGetDataFromIDList): * intl-win32.c: * intl-win32.c (mswindows_multibyte_cp_type): * intl-win32.c (struct mswindows_multibyte_coding_system): * keymap.c: * keymap.c (make_key_description): * keymap.c (keymap_store): * keymap.c (get_keyelt): * keymap.c (keymap_lookup_1): * keymap.c (define_key_parser): * keymap.c (key_desc_list_to_event): * keymap.c (event_matches_key_specifier_p): * keymap.c (meta_prefix_char_p): * keymap.c (ensure_meta_prefix_char_keymapp): * keymap.c (Fdefine_key): * keymap.c (struct raw_lookup_key_mapper_closure): * keymap.c (raw_lookup_key): * keymap.c (raw_lookup_key_mapper): * keymap.c (lookup_keys): * keymap.c (lookup_events): * keymap.c (Flookup_key): * keymap.c (struct map_keymap_unsorted_closure): * keymap.c (map_keymap_unsorted_mapper): * keymap.c (map_keymap_sorted): * keymap.c (map_keymap_mapper): * keymap.c (map_keymap): * keymap.c (accessible_keymaps_mapper_1): * keymap.c (Faccessible_keymaps): * keymap.c (Fsingle_key_description): * keymap.c (raw_keys_to_keys): * keymap.c (format_raw_keys): * keymap.c (where_is_recursive_mapper): * keymap.c (where_is_internal): * keymap.c (describe_map_mapper_shadow_search): * keymap.c (keymap_lookup_inherited_mapper): * keymap.c (describe_map_mapper): * keymap.h (event_matches_key_specifier_p): * lisp.h: * lisp.h (this): * lisp.h (RETURN_NOT_REACHED): * lisp.h (struct Lisp_Vector): * lisp.h (struct Lisp_Bit_Vector): * lisp.h (UNGCPRO_1): * lisp.h (NUNGCPRO): * lisp.h (NNUNGCPRO): * lisp.h (DECLARE_INLINE_HEADER): * lrecord.h: * lrecord.h (struct lrecord_header): * lrecord.h (struct lcrecord_header): * lrecord.h (lrecord_type): * lrecord.h (struct lrecord_implementation): * lrecord.h (RECORD_DUMPABLE): * lrecord.h (memory_description_type): * lrecord.h (data_description_entry_flags): * lrecord.h (struct memory_description): * lrecord.h (struct sized_memory_description): * lrecord.h (XD_INDIRECT): * lrecord.h (XD_IS_INDIRECT): * lrecord.h (XD_DYNARR_DESC): * lrecord.h (DEFINE_BASIC_LRECORD_IMPLEMENTATION): * lrecord.h (MAKE_LRECORD_IMPLEMENTATION): * lrecord.h (MAKE_EXTERNAL_LRECORD_IMPLEMENTATION): * lrecord.h (alloc_lcrecord_type): * lstream.c: * lstream.c (Lstream_new): * lstream.c (lisp_buffer_marker): * lstream.h: * lstream.h (lstream_implementation): * lstream.h (DEFINE_LSTREAM_IMPLEMENTATION): * lstream.h (DEFINE_LSTREAM_IMPLEMENTATION_WITH_DATA): * marker.c: * marker.c (copy_marker_1): * mem-limits.h: * menubar-gtk.c: * menubar-gtk.c (gtk_popup_menu): * menubar-msw.c: * menubar-msw.c (mswindows_popup_menu): * menubar-x.c (make_dummy_xbutton_event): * menubar-x.c (command_builder_operate_menu_accelerator): * menubar-x.c (menu_accelerator_safe_compare): * menubar-x.c (menu_accelerator_safe_mod_compare): * mule-charset.c: * mule-charset.c (make_charset): * mule-charset.c (Fcharset_property): * mule-coding.c: * mule-coding.c (ccs_description_1): * mule-coding.c (ccs_description =): * mule-coding.c (ccsd_description_1): * mule-coding.c (ccsd_description =): * nt.c (getpwnam): * nt.c (init_mswindows_environment): * nt.c (get_cached_volume_information): * nt.c (mswindows_is_executable): * nt.c (read_unc_volume): * nt.c (mswindows_access): * nt.c (mswindows_link): * nt.c (mswindows_fstat): * nt.c (mswindows_stat): * nt.c (mswindows_executable_type): * nt.c (Fmswindows_short_file_name): * nt.c (Fmswindows_long_file_name): * objects-impl.h (struct Lisp_Color_Instance): * objects-impl.h (struct Lisp_Font_Instance): * objects-tty.c: * objects-x.c (allocate_nearest_color): * objects.c: * objects.c (Fmake_color_instance): * objects.c (Fmake_font_instance): * objects.c (font_instantiate): * opaque.c: * opaque.c (make_opaque): * opaque.c (make_opaque_ptr): * opaque.c (reinit_opaque_early): * opaque.c (init_opaque_once_early): * print.c: * print.c (printing_badness): * print.c (printing_major_badness): * print.c (print_internal): * print.c (debug_p4): * print.c (dp): * print.c (debug_backtrace): * process-nt.c (nt_create_process): * process-nt.c (get_internet_address): * process-unix.c: * process-unix.c (struct unix_process_data): * process-unix.c (get_internet_address): * process-unix.c (unix_alloc_process_data): * process-unix.c (unix_create_process): * process-unix.c (try_to_initialize_subtty): * process-unix.c (unix_kill_child_process): * process-unix.c (process_type_create_unix): * process.c: * process.c (mark_process): * process.c (MARKED_SLOT): * process.c (make_process_internal): * process.c (Fprocess_tty_name): * process.c (decode_signal): * process.h: * procimpl.h: * procimpl.h (struct process_methods): * procimpl.h (struct Lisp_Process): * rangetab.c: * realpath.c (readlink_and_correct_case): * redisplay-x.c (x_window_output_end): * redisplay-x.c (x_redraw_exposed_area): * redisplay-x.c (x_clear_frame): * redisplay.c: * redisplay.h: * redisplay.h (struct rune_dglyph): * redisplay.h (struct rune): * scrollbar.c: * scrollbar.c (create_scrollbar_instance): * specifier.c: * specifier.c (specifier_empty_extra_description_1): * specifier.c (make_specifier_internal): * specifier.c (decode_locale_type): * specifier.c (decode_how_to_add_specification): * specifier.h: * specifier.h (struct specifier_methods): * specifier.h (DEFINE_SPECIFIER_TYPE_WITH_DATA): * specifier.h (INITIALIZE_SPECIFIER_TYPE_WITH_DATA): * symbols.c: * symbols.c (Fsetplist): * symbols.c (default_value): * symbols.c (decode_magic_handler_type): * symbols.c (handler_type_from_function_symbol): * symbols.c (Fdefvaralias): * symbols.c (init_symbols_once_early): * symbols.c (reinit_symbols_early): * symsinit.h: * sysdep.c (sys_subshell): * sysdep.c (tty_init_sys_modes_on_device): * syswindows.h: * text.c (dfc_convert_to_external_format): * text.c (dfc_convert_to_internal_format): * text.c (reinit_eistring_early): * text.c (init_eistring_once_early): * text.c (reinit_vars_of_text): * text.h: * text.h (INC_IBYTEPTR_FMT): * text.h (DEC_IBYTEPTR_FMT): * toolbar.c: * toolbar.c (decode_toolbar_position): * tooltalk.c: * ui-gtk.c: * unexnt.c: * unexnt.c (_start): * unexnt.c (unexec): * unexnt.c (get_section_info): * unicode.c: * unicode.c (vars_of_unicode): * window.c: * window.c (allocate_window): * window.c (new_window_mirror): * window.c (update_mirror_internal): * winslots.h:
author michaels
date Sun, 12 Jan 2003 11:08:22 +0000
parents 79c6ff3eef26
children fffe735e63ee
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rev   line source
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1 /* Editor command loop.
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2 Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc.
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3 Copyright (C) 1995, 1996, 2001, 2002 Ben Wing.
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4
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5 This file is part of XEmacs.
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6
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7 XEmacs is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 2, or (at your option) any
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10 later version.
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11
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12 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with XEmacs; see the file COPYING. If not, write to
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19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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20 Boston, MA 02111-1307, USA. */
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21
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22 /* Synched up with: Mule 2.0. Not synched with FSF.
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23 This was renamed from keyboard.c. However, it only contains the
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24 command-loop stuff from FSF's keyboard.c; all the rest is in
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25 event*.c, console.c, or signal.c. */
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26
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27 /* #### This module purports to separate out the command-loop stuff
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28 from event-stream.c, but it doesn't really. Perhaps this file
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29 should just be merged into event-stream.c, given its shortness. */
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30
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31 #include <config.h>
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32 #include "lisp.h"
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33
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34 #include "buffer.h"
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35 #include "console-impl.h"
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36 #include "device.h"
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37 #include "commands.h"
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38 #include "frame.h"
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39 #include "events.h"
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40 #include "window.h"
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41
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42 #ifdef HAVE_MS_WINDOWS
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43 #include "console-msw.h"
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44 #endif
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45
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46 /* Current depth in recursive edits. */
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47 Fixnum command_loop_level;
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48
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49 #ifndef LISP_COMMAND_LOOP
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50 /* Form to evaluate (if non-nil) when Emacs is started. */
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51 Lisp_Object Vtop_level;
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52 #else
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53 /* Function to call to evaluate to read and process events. */
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54 Lisp_Object Vcommand_loop;
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55 #endif /* LISP_COMMAND_LOOP */
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56
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57 Lisp_Object Venter_window_hook, Vleave_window_hook;
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58
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59 Lisp_Object Qdisabled_command_hook, Vdisabled_command_hook;
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60
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61 /* The error handler. */
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62 Lisp_Object Qcommand_error;
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63
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64 /* The emergency error handler, before we're ready. */
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65 Lisp_Object Qreally_early_error_handler;
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66
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67 /* Variable defined in Lisp. */
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68 Lisp_Object Qerrors_deactivate_region;
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69
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70 Lisp_Object Qtop_level;
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71
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72 static Lisp_Object command_loop_1 (Lisp_Object dummy);
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73 EXFUN (Fcommand_loop_1, 0);
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74
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75 /* There are two possible command loops -- one written entirely in
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76 C and one written mostly in Lisp, except stuff written in C for
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77 speed. The advantage of the Lisp command loop is that the user
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78 can specify their own command loop to use by changing the variable
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79 `command-loop'. Its disadvantage is that it's slow. */
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80
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81 static Lisp_Object
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82 default_error_handler (Lisp_Object data)
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83 {
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84 int speccount = specpdl_depth ();
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85
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86 /* None of this is invoked, normally. This code is almost identical
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87 to the `command-error' function, except `command-error' does cool
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88 tricks with sounds. This function is a fallback, invoked if
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89 command-error is unavailable. */
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90
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91 Fding (Qnil, Qnil, Qnil);
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92
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93 if (!NILP (Fboundp (Qerrors_deactivate_region))
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94 && !NILP (Fsymbol_value (Qerrors_deactivate_region)))
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95 zmacs_deactivate_region ();
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96 Fdiscard_input ();
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97 specbind (Qinhibit_quit, Qt);
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98 Vstandard_output = Qt;
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99 Vstandard_input = Qt;
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100 Vexecuting_macro = Qnil;
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101 Fset (intern ("last-error"), data);
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102 clear_echo_area (selected_frame (), Qnil, 0);
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103 Fdisplay_error (data, Qt);
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104 check_quit (); /* make Vquit_flag accurate */
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105 Vquit_flag = Qnil;
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106 return (unbind_to_1 (speccount, Qt));
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107 }
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108
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109 DEFUN ("really-early-error-handler", Freally_early_error_handler, 1, 1, 0, /*
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110 You should almost certainly not be using this.
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111 */
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112 (x))
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113 {
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114 /* This is an error handler used when we're running temacs and when
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115 we're in the early stages of XEmacs. No errors ought to be
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116 occurring in those cases (or they ought to be trapped and
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117 dealt with elsewhere), but if an error slips through, we need
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118 to deal with it. We could write this function in Lisp (and it
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119 used to be this way, at the beginning of loadup.el), but we do
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120 it this way in case an error occurs before we get to loading
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121 loadup.el. Note that there is also an `early-error-handler',
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122 used in startup.el to catch more reasonable errors that
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123 might occur during startup if the sysadmin or whoever fucked
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124 up. This function is more conservative in what it does
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125 and is used only as a last resort, indicating that the
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126 programmer himself fucked up somewhere. */
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127 stderr_out ("*** Error in XEmacs initialization");
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128 Fprint (x, Qexternal_debugging_output);
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129 stderr_out ("*** Backtrace\n");
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130 Fbacktrace (Qexternal_debugging_output, Qt);
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131 stderr_out ("*** Killing XEmacs\n");
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132 #ifdef HAVE_MS_WINDOWS
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133 Fmswindows_message_box (build_msg_string ("Initialization error"),
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134 Qnil, Qnil);
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135 #endif
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136 return Fkill_emacs (make_int (-1));
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137 }
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138
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139
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140 /**********************************************************************/
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141 /* Command-loop (in C) */
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142 /**********************************************************************/
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143
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144 #ifndef LISP_COMMAND_LOOP
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145
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146 /* The guts of the command loop are in command_loop_1(). This function
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147 doesn't catch errors, though -- that's the job of command_loop_2(),
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148 which is a condition-case wrapper around command_loop_1().
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149 command_loop_1() never returns, but may get thrown out of.
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150
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151 When an error occurs, cmd_error() is called, which usually
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152 invokes the Lisp error handler in `command-error'; however,
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153 a default error handler is provided if `command-error' is nil
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154 (e.g. during startup). The purpose of the error handler is
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155 simply to display the error message and do associated cleanup;
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156 it does not need to throw anywhere. When the error handler
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157 finishes, the condition-case in command_loop_2() will finish and
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158 command_loop_2() will reinvoke command_loop_1().
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159
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160 command_loop_2() is invoked from three places: from
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161 initial_command_loop() (called from main() at the end of
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162 internal initialization), from the Lisp function `recursive-edit',
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163 and from call_command_loop().
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164
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165 call_command_loop() is called when a macro is started and when the
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166 minibuffer is entered; normal termination of the macro or
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167 minibuffer causes a throw out of the recursive command loop. (To
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168 'execute-kbd-macro for macros and 'exit for minibuffers. Note also
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169 that the low-level minibuffer-entering function,
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170 `read-minibuffer-internal', provides its own error handling and
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171 does not need command_loop_2()'s error encapsulation; so it tells
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172 call_command_loop() to invoke command_loop_1() directly.)
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173
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174 Note that both read-minibuffer-internal and recursive-edit set
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175 up a catch for 'exit; this is why `abort-recursive-edit', which
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176 throws to this catch, exits out of either one.
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177
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178 initial_command_loop(), called from main(), sets up a catch
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179 for 'top-level when invoking command_loop_2(), allowing functions
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180 to throw all the way to the top level if they really need to.
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181 Before invoking command_loop_2(), initial_command_loop() calls
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182 top_level_1(), which handles all of the startup stuff (creating
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183 the initial frame, handling the command-line options, loading
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184 the user's .emacs file, etc.). The function that actually does this
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185 is in Lisp and is pointed to by the variable `top-level';
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186 normally this function is `normal-top-level'. top_level_1() is
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187 just an error-handling wrapper similar to command_loop_2().
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188 Note also that initial_command_loop() sets up a catch for 'top-level
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189 when invoking top_level_1(), just like when it invokes
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190 command_loop_2(). */
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191
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192
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193 static Lisp_Object
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194 cmd_error (Lisp_Object data, Lisp_Object dummy)
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195 {
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196 /* This function can GC */
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197 check_quit (); /* make Vquit_flag accurate */
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198 Vquit_flag = Qnil;
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199
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200 any_console_state ();
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201
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202 if (!NILP (Ffboundp (Qcommand_error)))
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203 return call1 (Qcommand_error, data);
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204
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205 return default_error_handler (data);
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206 }
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207
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208 static Lisp_Object
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209 top_level_1 (Lisp_Object dummy)
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210 {
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211 /* This function can GC */
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212 /* On entry to the outer level, run the startup file */
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213 if (!NILP (Vtop_level))
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214 condition_case_1 (Qerror, Feval, Vtop_level, cmd_error, Qnil);
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215 #if 1
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216 else
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217 {
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218 message ("\ntemacs can only be run in -batch mode.");
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219 noninteractive = 1; /* prevent things under kill-emacs from blowing up */
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220 Fkill_emacs (make_int (-1));
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221 }
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222 #else
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223 else if (purify_flag)
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224 message ("Bare impure Emacs (standard Lisp code not loaded)");
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225 else
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226 message ("Bare Emacs (standard Lisp code not loaded)");
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227 #endif
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228
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229 return Qnil;
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230 }
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231
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232 /* Here we catch errors in execution of commands within the
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233 editing loop, and reenter the editing loop.
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234 When there is an error, cmd_error runs and the call
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235 to condition_case_1() returns. */
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236
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237 /* Avoid confusing the compiler. A helper function for command_loop_2 */
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238 static DOESNT_RETURN
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239 command_loop_3 (void)
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240 {
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241 #ifdef LWLIB_MENUBARS_LUCID
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242 extern int in_menu_callback; /* defined in menubar-x.c */
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243 #endif /* LWLIB_MENUBARS_LUCID */
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244
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245 #ifdef LWLIB_MENUBARS_LUCID
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246 /*
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247 * #### Fix the menu code so this isn't necessary.
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248 *
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249 * We cannot allow the lwmenu code to be reentered, because the
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250 * code is not written to be reentrant and will crash. Therefore
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251 * paths from the menu callbacks back into the menu code have to
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252 * be blocked. Fnext_event is the normal path into the menu code,
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253 * but waiting to signal an error there is too late in case where
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254 * a new command loop has been started. The error will be caught
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255 * and Fnext_event will be called again, looping forever. So we
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256 * signal an error here to avoid the loop.
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257 */
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258 if (in_menu_callback)
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259 invalid_operation ("Attempt to enter command_loop_3 inside menu callback", Qunbound);
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260 #endif /* LWLIB_MENUBARS_LUCID */
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261 /* This function can GC */
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262 for (;;)
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263 {
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264 condition_case_1 (Qerror, command_loop_1, Qnil, cmd_error, Qnil);
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265 /* #### wrong with selected-console? */
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266 /* See command in initial_command_loop about why this value
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267 is 0. */
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268 reset_this_command_keys (Vselected_console, 0);
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269 }
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270 }
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parents:
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271
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cvs
parents:
diff changeset
272 static Lisp_Object
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
273 command_loop_2 (Lisp_Object dummy)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
274 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
275 command_loop_3(); /* doesn't return */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
276 return Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
277 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
278
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
279 /* This is called from emacs.c when it's done with initialization. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
280
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
281 DOESNT_RETURN
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
282 initial_command_loop (Lisp_Object load_me)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
283 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
284 /* This function can GC */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
285 if (!NILP (load_me))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
286 Vtop_level = list2 (Qload, load_me);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
287
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
288 /* First deal with startup and command-line arguments. A throw
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
289 to 'top-level gets us back here directly (does this ever happen?).
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
290 Otherwise, this function will return normally when all command-
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
291 line arguments have been processed, the user's initialization
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
292 file has been read in, and the first frame has been created. */
853
2b6fa2618f76 [xemacs-hg @ 2002-05-28 08:44:22 by ben]
ben
parents: 800
diff changeset
293 internal_catch (Qtop_level, top_level_1, Qnil, 0, 0);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
294
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
295 /* If an error occurred during startup and the initial console
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
296 wasn't created, then die now (the error was already printed out
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
297 on the terminal device). */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
298 if (!noninteractive &&
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
299 (!CONSOLEP (Vselected_console) ||
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
300 CONSOLE_STREAM_P (XCONSOLE (Vselected_console))))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
301 Fkill_emacs (make_int (-1));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
302
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
303 /* End of -batch run causes exit here. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
304 if (noninteractive)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
305 Fkill_emacs (Qt);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
306
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
307 for (;;)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
308 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
309 command_loop_level = 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
310 MARK_MODELINE_CHANGED;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
311 /* Now invoke the command loop. It never returns; however, a
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
312 throw to 'top-level will place us at the end of this loop. */
853
2b6fa2618f76 [xemacs-hg @ 2002-05-28 08:44:22 by ben]
ben
parents: 800
diff changeset
313 internal_catch (Qtop_level, command_loop_2, Qnil, 0, 0);
428
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cvs
parents:
diff changeset
314 /* #### wrong with selected-console? */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
315 /* We don't actually call clear_echo_area() here, partially
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
316 at least because that runs Lisp code and it may be unsafe
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
317 to do so -- we are outside of the normal catches for
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
318 errors and such. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
319 reset_this_command_keys (Vselected_console, 0);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
320 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
321 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
322
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
323 /* This function is invoked when a macro or minibuffer starts up.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
324 Normal termination of the macro or minibuffer causes a throw past us.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
325 See the comment above.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
326
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
327 Note that this function never returns (but may be thrown out of). */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
328
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
329 Lisp_Object
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
330 call_command_loop (Lisp_Object catch_errors)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
331 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
332 /* This function can GC */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
333 if (NILP (catch_errors))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
334 return (command_loop_1 (Qnil));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
335 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
336 return (command_loop_2 (Qnil));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
337 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
338
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
339 static Lisp_Object
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
340 recursive_edit_unwind (Lisp_Object buffer)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
341 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
342 if (!NILP (buffer))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
343 Fset_buffer (buffer);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
344
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
345 command_loop_level--;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
346 MARK_MODELINE_CHANGED;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
347
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
348 return Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
349 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
350
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
351 DEFUN ("recursive-edit", Frecursive_edit, 0, 0, "", /*
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
352 Invoke the editor command loop recursively.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
353 To get out of the recursive edit, a command can do `(throw 'exit nil)';
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
354 that tells this function to return.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
355 Alternately, `(throw 'exit t)' makes this function signal an error.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
356 */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
357 ())
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
358 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
359 /* This function can GC */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
360 Lisp_Object val;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
361 int speccount = specpdl_depth ();
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
362
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
363 command_loop_level++;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
364 MARK_MODELINE_CHANGED;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
365
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
366 record_unwind_protect (recursive_edit_unwind,
872
79c6ff3eef26 [xemacs-hg @ 2002-06-20 21:18:01 by ben]
ben
parents: 853
diff changeset
367 current_buffer
79c6ff3eef26 [xemacs-hg @ 2002-06-20 21:18:01 by ben]
ben
parents: 853
diff changeset
368 != XWINDOW_XBUFFER (Fselected_window (Qnil))
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
369 ? Fcurrent_buffer ()
872
79c6ff3eef26 [xemacs-hg @ 2002-06-20 21:18:01 by ben]
ben
parents: 853
diff changeset
370 : Qnil);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
371
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
372 specbind (Qstandard_output, Qt);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
373 specbind (Qstandard_input, Qt);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
374
853
2b6fa2618f76 [xemacs-hg @ 2002-05-28 08:44:22 by ben]
ben
parents: 800
diff changeset
375 val = internal_catch (Qexit, command_loop_2, Qnil, 0, 0);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
376
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
377 if (EQ (val, Qt))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
378 /* Turn abort-recursive-edit into a quit. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
379 Fsignal (Qquit, Qnil);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
380
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 733
diff changeset
381 return unbind_to (speccount);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
382 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
383
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
384 #endif /* !LISP_COMMAND_LOOP */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
385
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
386
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
387 /**********************************************************************/
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
388 /* Alternate command-loop (largely in Lisp) */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
389 /**********************************************************************/
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
390
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
391 #ifdef LISP_COMMAND_LOOP
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
392
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
393 static Lisp_Object
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
394 load1 (Lisp_Object name)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
395 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
396 /* This function can GC */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
397 call4 (Qload, name, Qnil, Qt, Qnil);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
398 return (Qnil);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
399 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
400
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
401 /* emergency backups for cold-load-stream use */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
402 static Lisp_Object
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
403 cold_load_command_error (Lisp_Object datum, Lisp_Object ignored)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
404 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
405 /* This function can GC */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
406 check_quit (); /* make Vquit_flag accurate */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
407 Vquit_flag = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
408
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
409 return default_error_handler (datum);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
410 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
411
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
412 static Lisp_Object
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
413 cold_load_command_loop (Lisp_Object dummy)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
414 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
415 /* This function can GC */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
416 return (condition_case_1 (Qt,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
417 command_loop_1, Qnil,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
418 cold_load_command_error, Qnil));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
419 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
420
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
421 Lisp_Object
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
422 call_command_loop (Lisp_Object catch_errors)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
423 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
424 /* This function can GC */
479
52626a2f02ef [xemacs-hg @ 2001-04-20 11:31:53 by ben]
ben
parents: 458
diff changeset
425 reset_this_command_keys (Vselected_console, 0); /* #### bleagh */
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
426
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
427 loop:
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
428 for (;;)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
429 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
430 if (NILP (Vcommand_loop))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
431 break;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
432 call1 (Vcommand_loop, catch_errors);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
433 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
434
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
435 /* This isn't a "correct" definition, but you're pretty hosed if
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
436 you broke "command-loop" anyway */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
437 /* #### not correct with Vselected_console */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
438 XCONSOLE (Vselected_console)->prefix_arg = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
439 if (NILP (catch_errors))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
440 Fcommand_loop_1 ();
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
441 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
442 internal_catch (Qtop_level,
853
2b6fa2618f76 [xemacs-hg @ 2002-05-28 08:44:22 by ben]
ben
parents: 800
diff changeset
443 cold_load_command_loop, Qnil, 0, 0);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
444 goto loop;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
445 return Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
446 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
447
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
448 static Lisp_Object
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
449 initial_error_handler (Lisp_Object datum, Lisp_Object ignored)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
450 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
451 /* This function can GC */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
452 Vcommand_loop = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
453 Fding (Qnil, Qnil, Qnil);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
454
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
455 if (CONSP (datum) && EQ (XCAR (datum), Qquit))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
456 /* Don't bother with the message */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
457 return (Qt);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
458
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
459 message ("Error in command-loop!!");
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
460 Fset (intern ("last-error"), datum); /* #### Better/different name? */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
461 Fsit_for (make_int (2), Qnil);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
462 cold_load_command_error (datum, Qnil);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
463 return (Qt);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
464 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
465
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
466 DOESNT_RETURN
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
467 initial_command_loop (Lisp_Object load_me)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
468 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
469 /* This function can GC */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
470 if (!NILP (load_me))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
471 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
472 if (!NILP (condition_case_1 (Qt, load1, load_me,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
473 initial_error_handler, Qnil)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
474 Fkill_emacs (make_int (-1));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
475 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
476
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
477 for (;;)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
478 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
479 command_loop_level = 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
480 MARK_MODELINE_CHANGED;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
481
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
482 condition_case_1 (Qt,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
483 call_command_loop, Qtop_level,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
484 initial_error_handler, Qnil);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
485 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
486 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
487
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
488 #endif /* LISP_COMMAND_LOOP */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
489
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
490
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
491 /**********************************************************************/
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
492 /* Guts of command loop */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
493 /**********************************************************************/
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
494
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
495 static Lisp_Object
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
496 command_loop_1 (Lisp_Object dummy)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
497 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
498 /* This function can GC */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
499 /* #### not correct with Vselected_console */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
500 XCONSOLE (Vselected_console)->prefix_arg = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
501 return (Fcommand_loop_1 ());
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
502 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
503
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
504 /* This is the actual command reading loop, sans error-handling
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
505 encapsulation. This is used for both the C and Lisp command
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
506 loops. Originally this function was written in Lisp when
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
507 the Lisp command loop was used, but it was too slow that way.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
508
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
509 Under the C command loop, this function will never return
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
510 (although someone might throw past it). Under the Lisp
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
511 command loop, this will return only when the user specifies
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
512 a new command loop by changing the command-loop variable. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
513
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
514 DEFUN ("command-loop-1", Fcommand_loop_1, 0, 0, 0, /*
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
515 Invoke the internals of the canonical editor command loop.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
516 Don't call this unless you know what you're doing.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
517 */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
518 ())
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
519 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
520 /* This function can GC */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
521 Lisp_Object event = Fmake_event (Qnil, Qnil);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
522 Lisp_Object old_loop = Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
523 struct gcpro gcpro1, gcpro2;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
524 int was_locked = in_single_console_state ();
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
525 GCPRO2 (event, old_loop);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
526
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
527 /* cancel_echoing (); */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
528 /* This magically makes single character keyboard macros work just
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
529 like the real thing. This is slightly bogus, but it's in here for
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
530 compatibility with Emacs 18. It's not even clear what the "right
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
531 thing" is. */
434
9d177e8d4150 Import from CVS: tag r21-2-25
cvs
parents: 428
diff changeset
532 if (!((STRINGP (Vexecuting_macro) || VECTORP (Vexecuting_macro))
9d177e8d4150 Import from CVS: tag r21-2-25
cvs
parents: 428
diff changeset
533 && XINT (Flength (Vexecuting_macro)) == 1))
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
534 Vlast_command = Qt;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
535
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
536 #ifndef LISP_COMMAND_LOOP
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
537 while (1)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
538 #else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
539 old_loop = Vcommand_loop;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
540 while (EQ (Vcommand_loop, old_loop))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
541 #endif /* LISP_COMMAND_LOOP */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
542 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
543 /* If focus_follows_mouse, make sure the frame with window manager
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
544 focus is selected. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
545 if (focus_follows_mouse)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
546 investigate_frame_change ();
434
9d177e8d4150 Import from CVS: tag r21-2-25
cvs
parents: 428
diff changeset
547
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
548 /* Make sure the current window's buffer is selected. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
549 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
550 Lisp_Object selected_window = Fselected_window (Qnil);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
551
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
552 if (!NILP (selected_window) &&
872
79c6ff3eef26 [xemacs-hg @ 2002-06-20 21:18:01 by ben]
ben
parents: 853
diff changeset
553 XWINDOW_XBUFFER (selected_window) != current_buffer)
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
554 {
872
79c6ff3eef26 [xemacs-hg @ 2002-06-20 21:18:01 by ben]
ben
parents: 853
diff changeset
555 set_buffer_internal (XWINDOW_XBUFFER (selected_window));
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
556 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
557 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
558
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
559 #if 0 /* What's wrong with going through ordinary procedure of quit?
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
560 quitting here leaves overriding-terminal-local-map
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
561 when you type C-u C-u C-g. */
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
562 /* If ^G was typed before we got here (that is, before emacs was
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
563 idle and waiting for input) then we treat that as an interrupt. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
564 QUIT;
444
576fb035e263 Import from CVS: tag r21-2-37
cvs
parents: 442
diff changeset
565 #endif
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
566
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
567 /* If minibuffer on and echo area in use, wait 2 sec and redraw
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
568 minibuffer. Treat a ^G here as a command, not an interrupt.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
569 */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
570 if (minibuf_level > 0 && echo_area_active (selected_frame ()))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
571 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
572 /* Bind dont_check_for_quit to 1 so that C-g gets read in
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
573 rather than quitting back to the minibuffer. */
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 733
diff changeset
574 int count = begin_dont_check_for_quit ();
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
575 Fsit_for (make_int (2), Qnil);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
576 clear_echo_area (selected_frame (), Qnil, 0);
853
2b6fa2618f76 [xemacs-hg @ 2002-05-28 08:44:22 by ben]
ben
parents: 800
diff changeset
577 Vquit_flag = Qnil; /* see begin_dont_check_for_quit() */
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 733
diff changeset
578 unbind_to (count);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
579 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
580
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
581 Fnext_event (event, Qnil);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
582 Fdispatch_event (event);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
583
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
584 if (!was_locked)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
585 any_console_state ();
1204
e22b0213b713 [xemacs-hg @ 2003-01-12 11:07:58 by michaels]
michaels
parents: 872
diff changeset
586
e22b0213b713 [xemacs-hg @ 2003-01-12 11:07:58 by michaels]
michaels
parents: 872
diff changeset
587 DO_NOTHING_DISABLING_NO_RETURN_WARNINGS;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
588 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
589 #ifdef LISP_COMMAND_LOOP
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
590 UNGCPRO;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
591 return Qnil;
1204
e22b0213b713 [xemacs-hg @ 2003-01-12 11:07:58 by michaels]
michaels
parents: 872
diff changeset
592 #else
e22b0213b713 [xemacs-hg @ 2003-01-12 11:07:58 by michaels]
michaels
parents: 872
diff changeset
593 RETURN_NOT_REACHED (Qnil);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
594 #endif
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
595 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
596
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
597
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
598 /**********************************************************************/
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
599 /* Initialization */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
600 /**********************************************************************/
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
601
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
602 void
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
603 syms_of_cmdloop (void)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
604 {
733
b1f74adcc1ff [xemacs-hg @ 2002-01-22 20:40:00 by janv]
janv
parents: 563
diff changeset
605 DEFSYMBOL (Qdisabled_command_hook);
563
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 479
diff changeset
606 DEFSYMBOL (Qcommand_error);
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 479
diff changeset
607 DEFSYMBOL (Qreally_early_error_handler);
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 479
diff changeset
608 DEFSYMBOL (Qtop_level);
183866b06e0b [xemacs-hg @ 2001-05-24 07:50:48 by ben]
ben
parents: 479
diff changeset
609 DEFSYMBOL (Qerrors_deactivate_region);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
610
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
611 #ifndef LISP_COMMAND_LOOP
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
612 DEFSUBR (Frecursive_edit);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
613 #endif
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
614 DEFSUBR (Freally_early_error_handler);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
615 DEFSUBR (Fcommand_loop_1);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
616 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
617
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
618 void
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
619 vars_of_cmdloop (void)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
620 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
621 DEFVAR_INT ("command-loop-level", &command_loop_level /*
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
622 Number of recursive edits in progress.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
623 */ );
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
624 command_loop_level = 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
625
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
626 DEFVAR_LISP ("disabled-command-hook", &Vdisabled_command_hook /*
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
627 Value is called instead of any command that is disabled,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
628 i.e. has a non-nil `disabled' property.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
629 */ );
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
630 Vdisabled_command_hook = intern ("disabled-command-hook");
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631
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632 DEFVAR_LISP ("leave-window-hook", &Vleave_window_hook /*
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633 Not yet implemented.
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634 */ );
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635 Vleave_window_hook = Qnil;
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636
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637 DEFVAR_LISP ("enter-window-hook", &Venter_window_hook /*
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638 Not yet implemented.
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639 */ );
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640 Venter_window_hook = Qnil;
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641
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642 #ifndef LISP_COMMAND_LOOP
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643 DEFVAR_LISP ("top-level", &Vtop_level /*
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644 Form to evaluate when Emacs starts up.
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645 Useful to set before you dump a modified Emacs.
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646 */ );
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647 Vtop_level = Qnil;
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648 #else
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649 DEFVAR_LISP ("command-loop", &Vcommand_loop /*
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650 Function or one argument to call to read and process keyboard commands.
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651 The passed argument specifies whether or not to handle errors.
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652 */ );
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653 Vcommand_loop = Qnil;
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654 #endif /* LISP_COMMAND_LOOP */
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655 }