Commit | Line | Data |
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284f4730 | 1 | /* Keyboard and mouse input; editor command loop. |
0d882d52 | 2 | Copyright (C) 1985,86,87,88,89,93,94,95 Free Software Foundation, Inc. |
284f4730 JB |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
7b4aedb9 | 8 | the Free Software Foundation; either version 2, or (at your option) |
284f4730 JB |
9 | any later version. |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
284f4730 JB |
20 | |
21 | /* Allow config.h to undefine symbols found here. */ | |
22 | #include <signal.h> | |
23 | ||
18160b98 | 24 | #include <config.h> |
284f4730 | 25 | #include <stdio.h> |
284f4730 JB |
26 | #include "termchar.h" |
27 | #include "termopts.h" | |
28 | #include "lisp.h" | |
29 | #include "termhooks.h" | |
30 | #include "macros.h" | |
ff11dfa1 | 31 | #include "frame.h" |
284f4730 JB |
32 | #include "window.h" |
33 | #include "commands.h" | |
34 | #include "buffer.h" | |
35 | #include "disptab.h" | |
f4255cd1 | 36 | #include "dispextern.h" |
284f4730 | 37 | #include "keyboard.h" |
497ba7a1 | 38 | #include "intervals.h" |
9ac0d9e0 | 39 | #include "blockinput.h" |
284f4730 JB |
40 | #include <setjmp.h> |
41 | #include <errno.h> | |
42 | ||
80e4aa30 RS |
43 | #ifdef MSDOS |
44 | #include "msdos.h" | |
45 | #include <time.h> | |
46 | #else /* not MSDOS */ | |
284f4730 JB |
47 | #ifndef VMS |
48 | #include <sys/ioctl.h> | |
284f4730 | 49 | #endif |
80e4aa30 | 50 | #endif /* not MSDOS */ |
284f4730 | 51 | |
52baf19e | 52 | #include "syssignal.h" |
6ef5b54f | 53 | #include "systty.h" |
52baf19e | 54 | |
c5e3b6c5 RS |
55 | /* This is to get the definitions of the XK_ symbols. */ |
56 | #ifdef HAVE_X_WINDOWS | |
57 | #include "xterm.h" | |
58 | #endif | |
59 | ||
e98a93eb GV |
60 | #ifdef HAVE_NTGUI |
61 | #include "w32term.h" | |
62 | #endif /* HAVE_NTGUI */ | |
63 | ||
0c2611c5 RS |
64 | /* Include systime.h after xterm.h to avoid double inclusion of time.h. */ |
65 | #include "systime.h" | |
66 | ||
52baf19e JB |
67 | extern int errno; |
68 | ||
9ac0d9e0 JB |
69 | /* Variables for blockinput.h: */ |
70 | ||
71 | /* Non-zero if interrupt input is blocked right now. */ | |
63927c41 | 72 | int interrupt_input_blocked; |
9ac0d9e0 JB |
73 | |
74 | /* Nonzero means an input interrupt has arrived | |
75 | during the current critical section. */ | |
63927c41 | 76 | int interrupt_input_pending; |
9ac0d9e0 JB |
77 | |
78 | ||
437f6112 RS |
79 | /* File descriptor to use for input. */ |
80 | extern int input_fd; | |
284f4730 | 81 | |
e98a93eb | 82 | #ifdef HAVE_WINDOW_SYSTEM |
284f4730 JB |
83 | /* Make all keyboard buffers much bigger when using X windows. */ |
84 | #define KBD_BUFFER_SIZE 4096 | |
85 | #else /* No X-windows, character input */ | |
86 | #define KBD_BUFFER_SIZE 256 | |
87 | #endif /* No X-windows */ | |
88 | ||
89 | /* Following definition copied from eval.c */ | |
90 | ||
91 | struct backtrace | |
92 | { | |
93 | struct backtrace *next; | |
94 | Lisp_Object *function; | |
95 | Lisp_Object *args; /* Points to vector of args. */ | |
96 | int nargs; /* length of vector. If nargs is UNEVALLED, | |
97 | args points to slot holding list of | |
98 | unevalled args */ | |
99 | char evalargs; | |
100 | }; | |
101 | ||
c5fdd383 KH |
102 | #ifdef MULTI_KBOARD |
103 | KBOARD *initial_kboard; | |
104 | KBOARD *current_kboard; | |
105 | KBOARD *all_kboards; | |
1e8bd3da | 106 | int single_kboard; |
6c6083a9 | 107 | #else |
c5fdd383 | 108 | KBOARD the_only_kboard; |
6c6083a9 | 109 | #endif |
612b78ef | 110 | |
284f4730 JB |
111 | /* Non-nil disable property on a command means |
112 | do not execute it; call disabled-command-hook's value instead. */ | |
2e894dab | 113 | Lisp_Object Qdisabled, Qdisabled_command_hook; |
284f4730 JB |
114 | |
115 | #define NUM_RECENT_KEYS (100) | |
116 | int recent_keys_index; /* Index for storing next element into recent_keys */ | |
117 | int total_keys; /* Total number of elements stored into recent_keys */ | |
5160df46 | 118 | Lisp_Object recent_keys; /* A vector, holding the last 100 keystrokes */ |
284f4730 | 119 | |
6569cc8d JB |
120 | /* Vector holding the key sequence that invoked the current command. |
121 | It is reused for each command, and it may be longer than the current | |
122 | sequence; this_command_key_count indicates how many elements | |
123 | actually mean something. | |
124 | It's easier to staticpro a single Lisp_Object than an array. */ | |
125 | Lisp_Object this_command_keys; | |
126 | int this_command_key_count; | |
284f4730 | 127 | |
71918b75 RS |
128 | /* Record values of this_command_key_count and echo_length () |
129 | before this command was read. */ | |
130 | static int before_command_key_count; | |
131 | static int before_command_echo_length; | |
132 | /* Values of before_command_key_count and before_command_echo_length | |
133 | saved by reset-this-command-lengths. */ | |
134 | static int before_command_key_count_1; | |
135 | static int before_command_echo_length_1; | |
136 | /* Flag set by reset-this-command-lengths, | |
137 | saying to reset the lengths when add_command_key is called. */ | |
138 | static int before_command_restore_flag; | |
139 | ||
284f4730 JB |
140 | extern int minbuf_level; |
141 | ||
142 | extern struct backtrace *backtrace_list; | |
143 | ||
144 | /* Nonzero means do menu prompting. */ | |
145 | static int menu_prompting; | |
146 | ||
147 | /* Character to see next line of menu prompt. */ | |
148 | static Lisp_Object menu_prompt_more_char; | |
149 | ||
150 | /* For longjmp to where kbd input is being done. */ | |
151 | static jmp_buf getcjmp; | |
152 | ||
153 | /* True while doing kbd input. */ | |
154 | int waiting_for_input; | |
155 | ||
156 | /* True while displaying for echoing. Delays C-g throwing. */ | |
157 | static int echoing; | |
158 | ||
1fc93d49 RS |
159 | /* True means we can start echoing at the next input pause |
160 | even though there is something in the echo area. */ | |
0c04a67e | 161 | static char *ok_to_echo_at_next_pause; |
1fc93d49 | 162 | |
03361bcc RS |
163 | /* Nonzero means disregard local maps for the menu bar. */ |
164 | static int inhibit_local_menu_bar_menus; | |
165 | ||
80e4aa30 | 166 | /* Nonzero means C-g should cause immediate error-signal. */ |
284f4730 JB |
167 | int immediate_quit; |
168 | ||
169 | /* Character to recognize as the help char. */ | |
7e85b935 | 170 | Lisp_Object Vhelp_char; |
284f4730 | 171 | |
ecb7cb34 KH |
172 | /* List of other event types to recognize as meaning "help". */ |
173 | Lisp_Object Vhelp_event_list; | |
174 | ||
284f4730 JB |
175 | /* Form to execute when help char is typed. */ |
176 | Lisp_Object Vhelp_form; | |
177 | ||
7e85b935 RS |
178 | /* Command to run when the help character follows a prefix key. */ |
179 | Lisp_Object Vprefix_help_command; | |
180 | ||
9f9c0e27 RS |
181 | /* List of items that should move to the end of the menu bar. */ |
182 | Lisp_Object Vmenu_bar_final_items; | |
a73c5e29 | 183 | |
6526ab49 RS |
184 | /* Non-nil means show the equivalent key-binding for |
185 | any M-x command that has one. | |
186 | The value can be a length of time to show the message for. | |
187 | If the value is non-nil and not a number, we wait 2 seconds. */ | |
188 | Lisp_Object Vsuggest_key_bindings; | |
189 | ||
284f4730 JB |
190 | /* Character that causes a quit. Normally C-g. |
191 | ||
192 | If we are running on an ordinary terminal, this must be an ordinary | |
193 | ASCII char, since we want to make it our interrupt character. | |
194 | ||
195 | If we are not running on an ordinary terminal, it still needs to be | |
196 | an ordinary ASCII char. This character needs to be recognized in | |
197 | the input interrupt handler. At this point, the keystroke is | |
198 | represented as a struct input_event, while the desired quit | |
199 | character is specified as a lispy event. The mapping from struct | |
200 | input_events to lispy events cannot run in an interrupt handler, | |
201 | and the reverse mapping is difficult for anything but ASCII | |
202 | keystrokes. | |
203 | ||
204 | FOR THESE ELABORATE AND UNSATISFYING REASONS, quit_char must be an | |
205 | ASCII character. */ | |
206 | int quit_char; | |
207 | ||
208 | extern Lisp_Object current_global_map; | |
209 | extern int minibuf_level; | |
210 | ||
9dd3131c RS |
211 | /* If non-nil, this is a map that overrides all other local maps. */ |
212 | Lisp_Object Voverriding_local_map; | |
213 | ||
d0a49716 RS |
214 | /* If non-nil, Voverriding_local_map applies to the menu bar. */ |
215 | Lisp_Object Voverriding_local_map_menu_flag; | |
216 | ||
7f07d5ca RS |
217 | /* Keymap that defines special misc events that should |
218 | be processed immediately at a low level. */ | |
219 | Lisp_Object Vspecial_event_map; | |
220 | ||
284f4730 JB |
221 | /* Current depth in recursive edits. */ |
222 | int command_loop_level; | |
223 | ||
224 | /* Total number of times command_loop has read a key sequence. */ | |
225 | int num_input_keys; | |
226 | ||
227 | /* Last input character read as a command. */ | |
228 | Lisp_Object last_command_char; | |
229 | ||
7d6de002 RS |
230 | /* Last input character read as a command, not counting menus |
231 | reached by the mouse. */ | |
232 | Lisp_Object last_nonmenu_event; | |
233 | ||
284f4730 JB |
234 | /* Last input character read for any purpose. */ |
235 | Lisp_Object last_input_char; | |
236 | ||
dbc4e1c1 | 237 | /* If not Qnil, a list of objects to be read as subsequent command input. */ |
24597608 | 238 | Lisp_Object Vunread_command_events; |
284f4730 | 239 | |
86e5706b RS |
240 | /* If not -1, an event to be read as subsequent command input. */ |
241 | int unread_command_char; | |
242 | ||
cd21b839 JB |
243 | /* If not Qnil, this is a switch-frame event which we decided to put |
244 | off until the end of a key sequence. This should be read as the | |
dbc4e1c1 | 245 | next command input, after any unread_command_events. |
8f805655 JB |
246 | |
247 | read_key_sequence uses this to delay switch-frame events until the | |
248 | end of the key sequence; Fread_char uses it to put off switch-frame | |
249 | events until a non-ASCII event is acceptable as input. */ | |
250 | Lisp_Object unread_switch_frame; | |
cd21b839 | 251 | |
9fa4395d RS |
252 | /* A mask of extra modifier bits to put into every keyboard char. */ |
253 | int extra_keyboard_modifiers; | |
254 | ||
284f4730 JB |
255 | /* Char to use as prefix when a meta character is typed in. |
256 | This is bound on entry to minibuffer in case ESC is changed there. */ | |
257 | ||
258 | Lisp_Object meta_prefix_char; | |
259 | ||
260 | /* Last size recorded for a current buffer which is not a minibuffer. */ | |
261 | static int last_non_minibuf_size; | |
262 | ||
06ef7355 | 263 | /* Number of idle seconds before an auto-save and garbage collection. */ |
284f4730 JB |
264 | static Lisp_Object Vauto_save_timeout; |
265 | ||
266 | /* Total number of times read_char has returned. */ | |
267 | int num_input_chars; | |
268 | ||
51172b6d RS |
269 | /* Total number of times read_char has returned, outside of macros. */ |
270 | int num_nonmacro_input_chars; | |
271 | ||
284f4730 JB |
272 | /* Auto-save automatically when this many characters have been typed |
273 | since the last time. */ | |
274 | ||
275 | static int auto_save_interval; | |
276 | ||
51172b6d | 277 | /* Value of num_nonmacro_input_chars as of last auto save. */ |
284f4730 JB |
278 | |
279 | int last_auto_save; | |
280 | ||
284f4730 | 281 | /* The command being executed by the command loop. |
6c7178b9 KH |
282 | Commands may set this, and the value set will be copied into |
283 | current_kboard->Vlast_command instead of the actual command. */ | |
284f4730 JB |
284 | Lisp_Object this_command; |
285 | ||
b453f72e KH |
286 | /* The value of point when the last command was executed. */ |
287 | int last_point_position; | |
288 | ||
047688cb RS |
289 | /* The buffer that was current when the last command was started. */ |
290 | Lisp_Object last_point_position_buffer; | |
291 | ||
4c52b668 KH |
292 | #ifdef MULTI_FRAME |
293 | /* The frame in which the last input event occurred, or Qmacro if the | |
294 | last event came from a macro. We use this to determine when to | |
295 | generate switch-frame events. This may be cleared by functions | |
296 | like Fselect_frame, to make sure that a switch-frame event is | |
297 | generated by the next character. */ | |
298 | Lisp_Object internal_last_event_frame; | |
299 | #endif | |
300 | ||
301 | /* A user-visible version of the above, intended to allow users to | |
302 | figure out where the last event came from, if the event doesn't | |
303 | carry that information itself (i.e. if it was a character). */ | |
304 | Lisp_Object Vlast_event_frame; | |
305 | ||
1113d9db JB |
306 | /* The timestamp of the last input event we received from the X server. |
307 | X Windows wants this for selection ownership. */ | |
284f4730 JB |
308 | unsigned long last_event_timestamp; |
309 | ||
310 | Lisp_Object Qself_insert_command; | |
311 | Lisp_Object Qforward_char; | |
312 | Lisp_Object Qbackward_char; | |
e58aa385 | 313 | Lisp_Object Qundefined; |
284f4730 JB |
314 | |
315 | /* read_key_sequence stores here the command definition of the | |
316 | key sequence that it reads. */ | |
317 | Lisp_Object read_key_sequence_cmd; | |
318 | ||
319 | /* Form to evaluate (if non-nil) when Emacs is started. */ | |
320 | Lisp_Object Vtop_level; | |
321 | ||
322 | /* User-supplied string to translate input characters through. */ | |
323 | Lisp_Object Vkeyboard_translate_table; | |
324 | ||
325 | /* Keymap mapping ASCII function key sequences onto their preferred forms. */ | |
326 | extern Lisp_Object Vfunction_key_map; | |
327 | ||
e0301c07 RS |
328 | /* Another keymap that maps key sequences into key sequences. |
329 | This one takes precedence over ordinary definitions. */ | |
330 | extern Lisp_Object Vkey_translation_map; | |
a612e298 | 331 | |
86e5706b RS |
332 | /* Non-nil means deactivate the mark at end of this command. */ |
333 | Lisp_Object Vdeactivate_mark; | |
334 | ||
48e416d4 RS |
335 | /* Menu bar specified in Lucid Emacs fashion. */ |
336 | ||
337 | Lisp_Object Vlucid_menu_bar_dirty_flag; | |
338 | Lisp_Object Qrecompute_lucid_menubar, Qactivate_menubar_hook; | |
339 | ||
86e5706b | 340 | /* Hooks to run before and after each command. */ |
59aadc81 RS |
341 | Lisp_Object Qpre_command_hook, Vpre_command_hook; |
342 | Lisp_Object Qpost_command_hook, Vpost_command_hook; | |
40932d1a | 343 | Lisp_Object Qcommand_hook_internal, Vcommand_hook_internal; |
59aadc81 RS |
344 | /* Hook run after a command if there's no more input soon. */ |
345 | Lisp_Object Qpost_command_idle_hook, Vpost_command_idle_hook; | |
346 | ||
347 | /* Delay time in microseconds before running post-command-idle-hook. */ | |
348 | int post_command_idle_delay; | |
86e5706b | 349 | |
8a792f3a RS |
350 | /* List of deferred actions to be performed at a later time. |
351 | The precise format isn't relevant here; we just check whether it is nil. */ | |
352 | Lisp_Object Vdeferred_action_list; | |
353 | ||
354 | /* Function to call to handle deferred actions, when there are any. */ | |
355 | Lisp_Object Vdeferred_action_function; | |
3ef14e46 | 356 | Lisp_Object Qdeferred_action_function; |
8a792f3a | 357 | |
284f4730 JB |
358 | /* File in which we write all commands we read. */ |
359 | FILE *dribble; | |
360 | ||
361 | /* Nonzero if input is available. */ | |
362 | int input_pending; | |
363 | ||
b04904fb RS |
364 | /* 1 if should obey 0200 bit in input chars as "Meta", 2 if should |
365 | keep 0200 bit in input chars. 0 to ignore the 0200 bit. */ | |
366 | ||
284f4730 JB |
367 | int meta_key; |
368 | ||
369 | extern char *pending_malloc_warning; | |
370 | ||
beecf6a1 KH |
371 | /* Circular buffer for pre-read keyboard input. */ |
372 | static struct input_event kbd_buffer[KBD_BUFFER_SIZE]; | |
373 | ||
374 | /* Vector to GCPRO the frames and windows mentioned in kbd_buffer. | |
375 | ||
376 | The interrupt-level event handlers will never enqueue an event on a | |
377 | frame which is not in Vframe_list, and once an event is dequeued, | |
378 | internal_last_event_frame or the event itself points to the frame. | |
379 | So that's all fine. | |
380 | ||
381 | But while the event is sitting in the queue, it's completely | |
382 | unprotected. Suppose the user types one command which will run for | |
383 | a while and then delete a frame, and then types another event at | |
384 | the frame that will be deleted, before the command gets around to | |
385 | it. Suppose there are no references to this frame elsewhere in | |
386 | Emacs, and a GC occurs before the second event is dequeued. Now we | |
387 | have an event referring to a freed frame, which will crash Emacs | |
388 | when it is dequeued. | |
389 | ||
390 | Similar things happen when an event on a scroll bar is enqueued; the | |
391 | window may be deleted while the event is in the queue. | |
392 | ||
393 | So, we use this vector to protect the frame_or_window field in the | |
394 | event queue. That way, they'll be dequeued as dead frames or | |
395 | windows, but still valid lisp objects. | |
396 | ||
397 | If kbd_buffer[i].kind != no_event, then | |
398 | (XVECTOR (kbd_buffer_frame_or_window)->contents[i] | |
399 | == kbd_buffer[i].frame_or_window. */ | |
400 | static Lisp_Object kbd_buffer_frame_or_window; | |
401 | ||
402 | /* Pointer to next available character in kbd_buffer. | |
403 | If kbd_fetch_ptr == kbd_store_ptr, the buffer is empty. | |
404 | This may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the the | |
405 | next available char is in kbd_buffer[0]. */ | |
406 | static struct input_event *kbd_fetch_ptr; | |
407 | ||
408 | /* Pointer to next place to store character in kbd_buffer. This | |
409 | may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the next | |
410 | character should go in kbd_buffer[0]. */ | |
411 | static volatile struct input_event *kbd_store_ptr; | |
412 | ||
413 | /* The above pair of variables forms a "queue empty" flag. When we | |
414 | enqueue a non-hook event, we increment kbd_store_ptr. When we | |
415 | dequeue a non-hook event, we increment kbd_fetch_ptr. We say that | |
416 | there is input available iff the two pointers are not equal. | |
417 | ||
418 | Why not just have a flag set and cleared by the enqueuing and | |
419 | dequeuing functions? Such a flag could be screwed up by interrupts | |
420 | at inopportune times. */ | |
421 | ||
f3253854 | 422 | /* If this flag is non-nil, we check mouse_moved to see when the |
a9d77f1f RS |
423 | mouse moves, and motion events will appear in the input stream. |
424 | Otherwise, mouse motion is ignored. */ | |
425 | static Lisp_Object do_mouse_tracking; | |
284f4730 | 426 | |
284f4730 JB |
427 | /* Symbols to head events. */ |
428 | Lisp_Object Qmouse_movement; | |
3c370943 | 429 | Lisp_Object Qscroll_bar_movement; |
cd21b839 | 430 | Lisp_Object Qswitch_frame; |
bbdc2092 | 431 | Lisp_Object Qdelete_frame; |
af17bd2b KH |
432 | Lisp_Object Qiconify_frame; |
433 | Lisp_Object Qmake_frame_visible; | |
cd21b839 | 434 | |
284f4730 JB |
435 | /* Symbols to denote kinds of events. */ |
436 | Lisp_Object Qfunction_key; | |
437 | Lisp_Object Qmouse_click; | |
438 | /* Lisp_Object Qmouse_movement; - also an event header */ | |
284f4730 JB |
439 | |
440 | /* Properties of event headers. */ | |
441 | Lisp_Object Qevent_kind; | |
88cb0656 | 442 | Lisp_Object Qevent_symbol_elements; |
284f4730 | 443 | |
598a9fa7 JB |
444 | Lisp_Object Qmenu_enable; |
445 | ||
0a7f1fc0 JB |
446 | /* An event header symbol HEAD may have a property named |
447 | Qevent_symbol_element_mask, which is of the form (BASE MODIFIERS); | |
448 | BASE is the base, unmodified version of HEAD, and MODIFIERS is the | |
449 | mask of modifiers applied to it. If present, this is used to help | |
450 | speed up parse_modifiers. */ | |
451 | Lisp_Object Qevent_symbol_element_mask; | |
452 | ||
453 | /* An unmodified event header BASE may have a property named | |
454 | Qmodifier_cache, which is an alist mapping modifier masks onto | |
455 | modified versions of BASE. If present, this helps speed up | |
456 | apply_modifiers. */ | |
457 | Lisp_Object Qmodifier_cache; | |
458 | ||
5ec75a55 | 459 | /* Symbols to use for parts of windows. */ |
284f4730 | 460 | Lisp_Object Qmode_line; |
e5d77022 | 461 | Lisp_Object Qvertical_line; |
3c370943 | 462 | Lisp_Object Qvertical_scroll_bar; |
5ec75a55 RS |
463 | Lisp_Object Qmenu_bar; |
464 | ||
465 | extern Lisp_Object Qmenu_enable; | |
284f4730 | 466 | |
f4255cd1 JB |
467 | Lisp_Object recursive_edit_unwind (), command_loop (); |
468 | Lisp_Object Fthis_command_keys (); | |
03b4122a | 469 | Lisp_Object Qextended_command_history; |
284f4730 | 470 | |
2c834fb3 KH |
471 | extern char *x_get_keysym_name (); |
472 | ||
f4eef8b4 RS |
473 | Lisp_Object Qpolling_period; |
474 | ||
a9f16aa9 KH |
475 | extern Lisp_Object Vprint_level, Vprint_length; |
476 | ||
ffd56f97 JB |
477 | /* Address (if not 0) of EMACS_TIME to zero out if a SIGIO interrupt |
478 | happens. */ | |
479 | EMACS_TIME *input_available_clear_time; | |
284f4730 JB |
480 | |
481 | /* Nonzero means use SIGIO interrupts; zero means use CBREAK mode. | |
482 | Default is 1 if INTERRUPT_INPUT is defined. */ | |
483 | int interrupt_input; | |
484 | ||
485 | /* Nonzero while interrupts are temporarily deferred during redisplay. */ | |
486 | int interrupts_deferred; | |
487 | ||
488 | /* nonzero means use ^S/^Q for flow control. */ | |
489 | int flow_control; | |
490 | ||
284f4730 JB |
491 | /* Allow m- file to inhibit use of FIONREAD. */ |
492 | #ifdef BROKEN_FIONREAD | |
493 | #undef FIONREAD | |
494 | #endif | |
495 | ||
496 | /* We are unable to use interrupts if FIONREAD is not available, | |
497 | so flush SIGIO so we won't try. */ | |
498 | #ifndef FIONREAD | |
499 | #ifdef SIGIO | |
500 | #undef SIGIO | |
501 | #endif | |
502 | #endif | |
503 | ||
e98a93eb | 504 | /* If we support a window system, turn on the code to poll periodically |
34f04431 | 505 | to detect C-g. It isn't actually used when doing interrupt input. */ |
e98a93eb | 506 | #ifdef HAVE_WINDOW_SYSTEM |
284f4730 JB |
507 | #define POLL_FOR_INPUT |
508 | #endif | |
8bb1c042 RS |
509 | |
510 | /* Non-nil enables Column Number mode. */ | |
511 | Lisp_Object Vcolumn_number_mode; | |
284f4730 JB |
512 | \f |
513 | /* Global variable declarations. */ | |
514 | ||
515 | /* Function for init_keyboard to call with no args (if nonzero). */ | |
516 | void (*keyboard_init_hook) (); | |
517 | ||
518 | static int read_avail_input (); | |
519 | static void get_input_pending (); | |
9fd7d808 | 520 | static int readable_events (); |
8150596a RS |
521 | static Lisp_Object read_char_x_menu_prompt (); |
522 | static Lisp_Object read_char_minibuf_menu_prompt (); | |
a612e298 | 523 | static Lisp_Object make_lispy_event (); |
514354e9 | 524 | #ifdef HAVE_MOUSE |
a612e298 | 525 | static Lisp_Object make_lispy_movement (); |
514354e9 | 526 | #endif |
a612e298 RS |
527 | static Lisp_Object modify_event_symbol (); |
528 | static Lisp_Object make_lispy_switch_frame (); | |
3d31316f | 529 | static int parse_solitary_modifier (); |
284f4730 JB |
530 | |
531 | /* > 0 if we are to echo keystrokes. */ | |
532 | static int echo_keystrokes; | |
533 | ||
8026024c KH |
534 | /* Nonzero means don't try to suspend even if the operating system seems |
535 | to support it. */ | |
536 | static int cannot_suspend; | |
537 | ||
284f4730 JB |
538 | #define min(a,b) ((a)<(b)?(a):(b)) |
539 | #define max(a,b) ((a)>(b)?(a):(b)) | |
540 | ||
541 | /* Install the string STR as the beginning of the string of echoing, | |
542 | so that it serves as a prompt for the next character. | |
543 | Also start echoing. */ | |
544 | ||
545 | echo_prompt (str) | |
546 | char *str; | |
547 | { | |
548 | int len = strlen (str); | |
7a80a6f6 | 549 | |
ba72822c KH |
550 | if (len > ECHOBUFSIZE - 4) |
551 | len = ECHOBUFSIZE - 4; | |
c5fdd383 KH |
552 | bcopy (str, current_kboard->echobuf, len); |
553 | current_kboard->echoptr = current_kboard->echobuf + len; | |
554 | *current_kboard->echoptr = '\0'; | |
284f4730 | 555 | |
c5fdd383 | 556 | current_kboard->echo_after_prompt = len; |
7a80a6f6 | 557 | |
284f4730 JB |
558 | echo (); |
559 | } | |
560 | ||
df0f2ba1 | 561 | /* Add C to the echo string, if echoing is going on. |
284f4730 JB |
562 | C can be a character, which is printed prettily ("M-C-x" and all that |
563 | jazz), or a symbol, whose name is printed. */ | |
564 | ||
565 | echo_char (c) | |
566 | Lisp_Object c; | |
567 | { | |
568 | extern char *push_key_description (); | |
569 | ||
c5fdd383 | 570 | if (current_kboard->immediate_echo) |
284f4730 | 571 | { |
c5fdd383 | 572 | char *ptr = current_kboard->echoptr; |
df0f2ba1 | 573 | |
c5fdd383 | 574 | if (ptr != current_kboard->echobuf) |
284f4730 JB |
575 | *ptr++ = ' '; |
576 | ||
577 | /* If someone has passed us a composite event, use its head symbol. */ | |
88cb0656 | 578 | c = EVENT_HEAD (c); |
284f4730 | 579 | |
8c18cbfb | 580 | if (INTEGERP (c)) |
284f4730 | 581 | { |
c5fdd383 | 582 | if (ptr - current_kboard->echobuf > ECHOBUFSIZE - 6) |
284f4730 JB |
583 | return; |
584 | ||
cb5df6ae | 585 | ptr = push_key_description (XINT (c), ptr); |
284f4730 | 586 | } |
8c18cbfb | 587 | else if (SYMBOLP (c)) |
284f4730 JB |
588 | { |
589 | struct Lisp_String *name = XSYMBOL (c)->name; | |
c5fdd383 | 590 | if ((ptr - current_kboard->echobuf) + name->size + 4 > ECHOBUFSIZE) |
284f4730 JB |
591 | return; |
592 | bcopy (name->data, ptr, name->size); | |
593 | ptr += name->size; | |
594 | } | |
595 | ||
c5fdd383 | 596 | if (current_kboard->echoptr == current_kboard->echobuf |
ecb7cb34 | 597 | && help_char_p (c)) |
284f4730 JB |
598 | { |
599 | strcpy (ptr, " (Type ? for further options)"); | |
600 | ptr += strlen (ptr); | |
601 | } | |
602 | ||
603 | *ptr = 0; | |
c5fdd383 | 604 | current_kboard->echoptr = ptr; |
284f4730 JB |
605 | |
606 | echo (); | |
607 | } | |
608 | } | |
609 | ||
610 | /* Temporarily add a dash to the end of the echo string if it's not | |
611 | empty, so that it serves as a mini-prompt for the very next character. */ | |
612 | ||
613 | echo_dash () | |
614 | { | |
c5fdd383 KH |
615 | if (!current_kboard->immediate_echo |
616 | && current_kboard->echoptr == current_kboard->echobuf) | |
284f4730 | 617 | return; |
7a80a6f6 | 618 | /* Do nothing if we just printed a prompt. */ |
c5fdd383 KH |
619 | if (current_kboard->echo_after_prompt |
620 | == current_kboard->echoptr - current_kboard->echobuf) | |
7a80a6f6 | 621 | return; |
4bafa972 | 622 | /* Do nothing if not echoing at all. */ |
c5fdd383 | 623 | if (current_kboard->echoptr == 0) |
4bafa972 | 624 | return; |
284f4730 JB |
625 | |
626 | /* Put a dash at the end of the buffer temporarily, | |
627 | but make it go away when the next character is added. */ | |
c5fdd383 KH |
628 | current_kboard->echoptr[0] = '-'; |
629 | current_kboard->echoptr[1] = 0; | |
284f4730 JB |
630 | |
631 | echo (); | |
632 | } | |
633 | ||
634 | /* Display the current echo string, and begin echoing if not already | |
635 | doing so. */ | |
636 | ||
637 | echo () | |
638 | { | |
c5fdd383 | 639 | if (!current_kboard->immediate_echo) |
284f4730 JB |
640 | { |
641 | int i; | |
c5fdd383 | 642 | current_kboard->immediate_echo = 1; |
284f4730 JB |
643 | |
644 | for (i = 0; i < this_command_key_count; i++) | |
d0a57728 RS |
645 | { |
646 | Lisp_Object c; | |
647 | c = XVECTOR (this_command_keys)->contents[i]; | |
648 | if (! (EVENT_HAS_PARAMETERS (c) | |
649 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
650 | echo_char (c); | |
651 | } | |
284f4730 JB |
652 | echo_dash (); |
653 | } | |
654 | ||
655 | echoing = 1; | |
c5fdd383 | 656 | message1_nolog (current_kboard->echobuf); |
284f4730 JB |
657 | echoing = 0; |
658 | ||
659 | if (waiting_for_input && !NILP (Vquit_flag)) | |
660 | quit_throw_to_read_char (); | |
661 | } | |
662 | ||
663 | /* Turn off echoing, for the start of a new command. */ | |
664 | ||
665 | cancel_echoing () | |
666 | { | |
c5fdd383 KH |
667 | current_kboard->immediate_echo = 0; |
668 | current_kboard->echoptr = current_kboard->echobuf; | |
669 | current_kboard->echo_after_prompt = -1; | |
1fc93d49 | 670 | ok_to_echo_at_next_pause = 0; |
284f4730 JB |
671 | } |
672 | ||
673 | /* Return the length of the current echo string. */ | |
674 | ||
675 | static int | |
676 | echo_length () | |
677 | { | |
c5fdd383 | 678 | return current_kboard->echoptr - current_kboard->echobuf; |
284f4730 JB |
679 | } |
680 | ||
681 | /* Truncate the current echo message to its first LEN chars. | |
682 | This and echo_char get used by read_key_sequence when the user | |
ff11dfa1 | 683 | switches frames while entering a key sequence. */ |
284f4730 JB |
684 | |
685 | static void | |
686 | echo_truncate (len) | |
687 | int len; | |
688 | { | |
c5fdd383 KH |
689 | current_kboard->echobuf[len] = '\0'; |
690 | current_kboard->echoptr = current_kboard->echobuf + len; | |
40932d1a | 691 | truncate_echo_area (len); |
284f4730 JB |
692 | } |
693 | ||
694 | \f | |
695 | /* Functions for manipulating this_command_keys. */ | |
696 | static void | |
697 | add_command_key (key) | |
698 | Lisp_Object key; | |
699 | { | |
6569cc8d JB |
700 | int size = XVECTOR (this_command_keys)->size; |
701 | ||
71918b75 RS |
702 | /* If reset-this-command-length was called recently, obey it now. |
703 | See the doc string of that function for an explanation of why. */ | |
704 | if (before_command_restore_flag) | |
705 | { | |
706 | this_command_key_count = before_command_key_count_1; | |
707 | echo_truncate (before_command_echo_length_1); | |
708 | before_command_restore_flag = 0; | |
709 | } | |
710 | ||
6569cc8d | 711 | if (this_command_key_count >= size) |
284f4730 | 712 | { |
9b8eb840 | 713 | Lisp_Object new_keys; |
6569cc8d | 714 | |
9b8eb840 | 715 | new_keys = Fmake_vector (make_number (size * 2), Qnil); |
6569cc8d JB |
716 | bcopy (XVECTOR (this_command_keys)->contents, |
717 | XVECTOR (new_keys)->contents, | |
8f805655 | 718 | size * sizeof (Lisp_Object)); |
6569cc8d JB |
719 | |
720 | this_command_keys = new_keys; | |
284f4730 | 721 | } |
6569cc8d JB |
722 | |
723 | XVECTOR (this_command_keys)->contents[this_command_key_count++] = key; | |
284f4730 JB |
724 | } |
725 | \f | |
726 | Lisp_Object | |
727 | recursive_edit_1 () | |
728 | { | |
729 | int count = specpdl_ptr - specpdl; | |
730 | Lisp_Object val; | |
731 | ||
732 | if (command_loop_level > 0) | |
733 | { | |
734 | specbind (Qstandard_output, Qt); | |
735 | specbind (Qstandard_input, Qt); | |
736 | } | |
737 | ||
738 | val = command_loop (); | |
739 | if (EQ (val, Qt)) | |
740 | Fsignal (Qquit, Qnil); | |
741 | ||
cb5df6ae | 742 | return unbind_to (count, Qnil); |
284f4730 JB |
743 | } |
744 | ||
745 | /* When an auto-save happens, record the "time", and don't do again soon. */ | |
5846638c | 746 | |
284f4730 JB |
747 | record_auto_save () |
748 | { | |
51172b6d | 749 | last_auto_save = num_nonmacro_input_chars; |
284f4730 | 750 | } |
5846638c RS |
751 | |
752 | /* Make an auto save happen as soon as possible at command level. */ | |
753 | ||
754 | force_auto_save_soon () | |
755 | { | |
756 | last_auto_save = - auto_save_interval - 1; | |
241ceaf7 RS |
757 | |
758 | record_asynch_buffer_change (); | |
5846638c | 759 | } |
284f4730 | 760 | \f |
284f4730 JB |
761 | DEFUN ("recursive-edit", Frecursive_edit, Srecursive_edit, 0, 0, "", |
762 | "Invoke the editor command loop recursively.\n\ | |
763 | To get out of the recursive edit, a command can do `(throw 'exit nil)';\n\ | |
764 | that tells this function to return.\n\ | |
765 | Alternately, `(throw 'exit t)' makes this function signal an error.\n\ | |
766 | This function is called by the editor initialization to begin editing.") | |
767 | () | |
768 | { | |
769 | int count = specpdl_ptr - specpdl; | |
770 | Lisp_Object val; | |
771 | ||
772 | command_loop_level++; | |
773 | update_mode_lines = 1; | |
774 | ||
775 | record_unwind_protect (recursive_edit_unwind, | |
776 | (command_loop_level | |
777 | && current_buffer != XBUFFER (XWINDOW (selected_window)->buffer)) | |
778 | ? Fcurrent_buffer () | |
779 | : Qnil); | |
780 | recursive_edit_1 (); | |
781 | return unbind_to (count, Qnil); | |
782 | } | |
783 | ||
784 | Lisp_Object | |
785 | recursive_edit_unwind (buffer) | |
786 | Lisp_Object buffer; | |
787 | { | |
788 | if (!NILP (buffer)) | |
789 | Fset_buffer (buffer); | |
790 | ||
791 | command_loop_level--; | |
792 | update_mode_lines = 1; | |
793 | return Qnil; | |
794 | } | |
795 | \f | |
604ccd1d | 796 | static void |
1e8bd3da | 797 | any_kboard_state () |
604ccd1d | 798 | { |
1e8bd3da RS |
799 | #ifdef MULTI_KBOARD |
800 | #if 0 /* Theory: if there's anything in Vunread_command_events, | |
801 | it will right away be read by read_key_sequence, | |
802 | and then if we do switch KBOARDS, it will go into the side | |
803 | queue then. So we don't need to do anything special here -- rms. */ | |
604ccd1d | 804 | if (CONSP (Vunread_command_events)) |
4524b161 | 805 | { |
c5fdd383 KH |
806 | current_kboard->kbd_queue |
807 | = nconc2 (Vunread_command_events, current_kboard->kbd_queue); | |
808 | current_kboard->kbd_queue_has_data = 1; | |
4524b161 | 809 | } |
604ccd1d | 810 | Vunread_command_events = Qnil; |
1e8bd3da RS |
811 | #endif |
812 | single_kboard = 0; | |
813 | #endif | |
604ccd1d | 814 | } |
1e8bd3da RS |
815 | |
816 | /* Switch to the single-kboard state, making current_kboard | |
817 | the only KBOARD from which further input is accepted. */ | |
818 | ||
819 | void | |
820 | single_kboard_state () | |
821 | { | |
822 | #ifdef MULTI_KBOARD | |
823 | single_kboard = 1; | |
604ccd1d | 824 | #endif |
1e8bd3da RS |
825 | } |
826 | ||
827 | /* Maintain a stack of kboards, so other parts of Emacs | |
828 | can switch temporarily to the kboard of a given frame | |
829 | and then revert to the previous status. */ | |
830 | ||
831 | struct kboard_stack | |
832 | { | |
833 | KBOARD *kboard; | |
834 | struct kboard_stack *next; | |
835 | }; | |
836 | ||
837 | static struct kboard_stack *kboard_stack; | |
838 | ||
839 | void | |
840 | push_frame_kboard (f) | |
841 | FRAME_PTR f; | |
842 | { | |
ab48365b | 843 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
844 | struct kboard_stack *p |
845 | = (struct kboard_stack *) xmalloc (sizeof (struct kboard_stack)); | |
846 | ||
847 | p->next = kboard_stack; | |
848 | p->kboard = current_kboard; | |
849 | kboard_stack = p; | |
850 | ||
851 | current_kboard = FRAME_KBOARD (f); | |
ab48365b | 852 | #endif |
1e8bd3da RS |
853 | } |
854 | ||
855 | void | |
856 | pop_frame_kboard () | |
857 | { | |
ab48365b | 858 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
859 | struct kboard_stack *p = kboard_stack; |
860 | current_kboard = p->kboard; | |
861 | kboard_stack = p->next; | |
862 | xfree (p); | |
ab48365b | 863 | #endif |
1e8bd3da RS |
864 | } |
865 | \f | |
866 | /* Handle errors that are not handled at inner levels | |
867 | by printing an error message and returning to the editor command loop. */ | |
604ccd1d | 868 | |
284f4730 JB |
869 | Lisp_Object |
870 | cmd_error (data) | |
871 | Lisp_Object data; | |
a1341f75 | 872 | { |
a9f16aa9 KH |
873 | Lisp_Object old_level, old_length; |
874 | ||
a1341f75 RS |
875 | Vstandard_output = Qt; |
876 | Vstandard_input = Qt; | |
877 | Vexecuting_macro = Qnil; | |
d8bcf58e | 878 | current_kboard->Vprefix_arg = Qnil; |
df0f2ba1 | 879 | cancel_echoing (); |
a9f16aa9 KH |
880 | |
881 | /* Avoid unquittable loop if data contains a circular list. */ | |
882 | old_level = Vprint_level; | |
883 | old_length = Vprint_length; | |
0c04a67e RS |
884 | XSETFASTINT (Vprint_level, 10); |
885 | XSETFASTINT (Vprint_length, 10); | |
6de34814 | 886 | cmd_error_internal (data, NULL); |
a9f16aa9 KH |
887 | Vprint_level = old_level; |
888 | Vprint_length = old_length; | |
a1341f75 RS |
889 | |
890 | Vquit_flag = Qnil; | |
891 | ||
892 | Vinhibit_quit = Qnil; | |
c5fdd383 | 893 | #ifdef MULTI_KBOARD |
1e8bd3da | 894 | any_kboard_state (); |
ff4b06d3 | 895 | #endif |
a1341f75 RS |
896 | |
897 | return make_number (0); | |
898 | } | |
899 | ||
900 | cmd_error_internal (data, context) | |
901 | Lisp_Object data; | |
902 | char *context; | |
284f4730 | 903 | { |
284f4730 | 904 | Lisp_Object stream; |
284f4730 JB |
905 | |
906 | Vquit_flag = Qnil; | |
907 | Vinhibit_quit = Qt; | |
284f4730 JB |
908 | echo_area_glyphs = 0; |
909 | ||
ff11dfa1 | 910 | /* If the window system or terminal frame hasn't been initialized |
284f4730 JB |
911 | yet, or we're not interactive, it's best to dump this message out |
912 | to stderr and exit. */ | |
ff11dfa1 | 913 | if (! FRAME_MESSAGE_BUF (selected_frame) |
284f4730 JB |
914 | || noninteractive) |
915 | stream = Qexternal_debugging_output; | |
916 | else | |
917 | { | |
918 | Fdiscard_input (); | |
919 | bitch_at_user (); | |
920 | stream = Qt; | |
921 | } | |
922 | ||
a1341f75 RS |
923 | if (context != 0) |
924 | write_string_1 (context, -1, stream); | |
925 | ||
22a51344 | 926 | print_error_message (data, stream); |
284f4730 | 927 | |
ff11dfa1 | 928 | /* If the window system or terminal frame hasn't been initialized |
284f4730 | 929 | yet, or we're in -batch mode, this error should cause Emacs to exit. */ |
ff11dfa1 | 930 | if (! FRAME_MESSAGE_BUF (selected_frame) |
284f4730 JB |
931 | || noninteractive) |
932 | { | |
933 | Fterpri (stream); | |
934 | Fkill_emacs (make_number (-1)); | |
935 | } | |
284f4730 JB |
936 | } |
937 | \f | |
938 | Lisp_Object command_loop_1 (); | |
939 | Lisp_Object command_loop_2 (); | |
940 | Lisp_Object top_level_1 (); | |
941 | ||
942 | /* Entry to editor-command-loop. | |
943 | This level has the catches for exiting/returning to editor command loop. | |
944 | It returns nil to exit recursive edit, t to abort it. */ | |
945 | ||
946 | Lisp_Object | |
947 | command_loop () | |
948 | { | |
949 | if (command_loop_level > 0 || minibuf_level > 0) | |
950 | { | |
951 | return internal_catch (Qexit, command_loop_2, Qnil); | |
952 | } | |
953 | else | |
954 | while (1) | |
955 | { | |
956 | internal_catch (Qtop_level, top_level_1, Qnil); | |
957 | internal_catch (Qtop_level, command_loop_2, Qnil); | |
df0f2ba1 | 958 | |
284f4730 JB |
959 | /* End of file in -batch run causes exit here. */ |
960 | if (noninteractive) | |
961 | Fkill_emacs (Qt); | |
962 | } | |
963 | } | |
964 | ||
965 | /* Here we catch errors in execution of commands within the | |
966 | editing loop, and reenter the editing loop. | |
967 | When there is an error, cmd_error runs and returns a non-nil | |
968 | value to us. A value of nil means that cmd_loop_1 itself | |
969 | returned due to end of file (or end of kbd macro). */ | |
970 | ||
971 | Lisp_Object | |
972 | command_loop_2 () | |
973 | { | |
974 | register Lisp_Object val; | |
975 | ||
976 | do | |
977 | val = internal_condition_case (command_loop_1, Qerror, cmd_error); | |
978 | while (!NILP (val)); | |
979 | ||
980 | return Qnil; | |
981 | } | |
982 | ||
983 | Lisp_Object | |
984 | top_level_2 () | |
985 | { | |
986 | return Feval (Vtop_level); | |
987 | } | |
988 | ||
989 | Lisp_Object | |
990 | top_level_1 () | |
991 | { | |
992 | /* On entry to the outer level, run the startup file */ | |
993 | if (!NILP (Vtop_level)) | |
994 | internal_condition_case (top_level_2, Qerror, cmd_error); | |
995 | else if (!NILP (Vpurify_flag)) | |
996 | message ("Bare impure Emacs (standard Lisp code not loaded)"); | |
997 | else | |
998 | message ("Bare Emacs (standard Lisp code not loaded)"); | |
999 | return Qnil; | |
1000 | } | |
1001 | ||
1002 | DEFUN ("top-level", Ftop_level, Stop_level, 0, 0, "", | |
1003 | "Exit all recursive editing levels.") | |
1004 | () | |
1005 | { | |
1006 | Fthrow (Qtop_level, Qnil); | |
1007 | } | |
1008 | ||
1009 | DEFUN ("exit-recursive-edit", Fexit_recursive_edit, Sexit_recursive_edit, 0, 0, "", | |
1010 | "Exit from the innermost recursive edit or minibuffer.") | |
1011 | () | |
1012 | { | |
1013 | if (command_loop_level > 0 || minibuf_level > 0) | |
1014 | Fthrow (Qexit, Qnil); | |
1015 | ||
1016 | error ("No recursive edit is in progress"); | |
1017 | } | |
1018 | ||
1019 | DEFUN ("abort-recursive-edit", Fabort_recursive_edit, Sabort_recursive_edit, 0, 0, "", | |
1020 | "Abort the command that requested this recursive edit or minibuffer input.") | |
1021 | () | |
1022 | { | |
1023 | if (command_loop_level > 0 || minibuf_level > 0) | |
1024 | Fthrow (Qexit, Qt); | |
1025 | ||
1026 | error ("No recursive edit is in progress"); | |
1027 | } | |
1028 | \f | |
1029 | /* This is the actual command reading loop, | |
1030 | sans error-handling encapsulation. */ | |
1031 | ||
1032 | Lisp_Object Fcommand_execute (); | |
1033 | static int read_key_sequence (); | |
68f297c5 | 1034 | void safe_run_hooks (); |
284f4730 JB |
1035 | |
1036 | Lisp_Object | |
1037 | command_loop_1 () | |
1038 | { | |
48e416d4 | 1039 | Lisp_Object cmd, tem; |
284f4730 JB |
1040 | int lose; |
1041 | int nonundocount; | |
1042 | Lisp_Object keybuf[30]; | |
1043 | int i; | |
1044 | int no_redisplay; | |
1045 | int no_direct; | |
86e5706b RS |
1046 | int prev_modiff; |
1047 | struct buffer *prev_buffer; | |
c5fdd383 | 1048 | #ifdef MULTI_KBOARD |
1e8bd3da | 1049 | int was_locked = single_kboard; |
bded54dd | 1050 | #endif |
284f4730 | 1051 | |
d9b641bb | 1052 | current_kboard->Vprefix_arg = Qnil; |
86e5706b | 1053 | Vdeactivate_mark = Qnil; |
284f4730 | 1054 | waiting_for_input = 0; |
df0f2ba1 | 1055 | cancel_echoing (); |
284f4730 | 1056 | |
284f4730 JB |
1057 | nonundocount = 0; |
1058 | no_redisplay = 0; | |
1059 | this_command_key_count = 0; | |
1060 | ||
a612e298 RS |
1061 | /* Make sure this hook runs after commands that get errors and |
1062 | throw to top level. */ | |
a98ea3f9 RS |
1063 | /* Note that the value cell will never directly contain nil |
1064 | if the symbol is a local variable. */ | |
e98a93eb | 1065 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) |
a98ea3f9 | 1066 | safe_run_hooks (Qpost_command_hook); |
a612e298 | 1067 | |
8a792f3a RS |
1068 | if (!NILP (Vdeferred_action_list)) |
1069 | call0 (Vdeferred_action_function); | |
1070 | ||
e98a93eb | 1071 | if (!NILP (Vpost_command_idle_hook) && !NILP (Vrun_hooks)) |
59aadc81 RS |
1072 | { |
1073 | if (NILP (Vunread_command_events) | |
1074 | && NILP (Vexecuting_macro) | |
1075 | && !NILP (sit_for (0, post_command_idle_delay, 0, 1))) | |
1076 | safe_run_hooks (Qpost_command_idle_hook); | |
1077 | } | |
1078 | ||
51d5a2c9 | 1079 | /* Do this after running Vpost_command_hook, for consistency. */ |
6c7178b9 | 1080 | current_kboard->Vlast_command = this_command; |
51d5a2c9 | 1081 | |
284f4730 JB |
1082 | while (1) |
1083 | { | |
284f4730 JB |
1084 | /* Make sure the current window's buffer is selected. */ |
1085 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
1086 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1087 | ||
1088 | /* Display any malloc warning that just came out. Use while because | |
1089 | displaying one warning can cause another. */ | |
1090 | ||
1091 | while (pending_malloc_warning) | |
1092 | display_malloc_warning (); | |
1093 | ||
1094 | no_direct = 0; | |
1095 | ||
86e5706b RS |
1096 | Vdeactivate_mark = Qnil; |
1097 | ||
284f4730 | 1098 | /* If minibuffer on and echo area in use, |
eb8c3be9 | 1099 | wait 2 sec and redraw minibuffer. */ |
284f4730 | 1100 | |
93127526 RS |
1101 | if (minibuf_level && echo_area_glyphs |
1102 | && EQ (minibuf_window, echo_area_window)) | |
284f4730 | 1103 | { |
f1bed6d8 RS |
1104 | /* Bind inhibit-quit to t so that C-g gets read in |
1105 | rather than quitting back to the minibuffer. */ | |
1106 | int count = specpdl_ptr - specpdl; | |
1107 | specbind (Qinhibit_quit, Qt); | |
284f4730 | 1108 | Fsit_for (make_number (2), Qnil, Qnil); |
cb5df6ae | 1109 | unbind_to (count, Qnil); |
f1bed6d8 | 1110 | |
284f4730 JB |
1111 | echo_area_glyphs = 0; |
1112 | no_direct = 1; | |
1113 | if (!NILP (Vquit_flag)) | |
1114 | { | |
1115 | Vquit_flag = Qnil; | |
24597608 | 1116 | Vunread_command_events = Fcons (make_number (quit_char), Qnil); |
284f4730 JB |
1117 | } |
1118 | } | |
1119 | ||
1120 | #ifdef C_ALLOCA | |
ff4b06d3 | 1121 | alloca (0); /* Cause a garbage collection now */ |
284f4730 JB |
1122 | /* Since we can free the most stuff here. */ |
1123 | #endif /* C_ALLOCA */ | |
1124 | ||
8f805655 | 1125 | #if 0 |
ff11dfa1 | 1126 | #ifdef MULTI_FRAME |
8f805655 JB |
1127 | /* Select the frame that the last event came from. Usually, |
1128 | switch-frame events will take care of this, but if some lisp | |
1129 | code swallows a switch-frame event, we'll fix things up here. | |
1130 | Is this a good idea? */ | |
8c18cbfb | 1131 | if (FRAMEP (internal_last_event_frame) |
3c370943 JB |
1132 | && XFRAME (internal_last_event_frame) != selected_frame) |
1133 | Fselect_frame (internal_last_event_frame, Qnil); | |
cd21b839 | 1134 | #endif |
284f4730 | 1135 | #endif |
48e416d4 RS |
1136 | /* If it has changed current-menubar from previous value, |
1137 | really recompute the menubar from the value. */ | |
a646e520 RS |
1138 | if (! NILP (Vlucid_menu_bar_dirty_flag) |
1139 | && !NILP (Ffboundp (Qrecompute_lucid_menubar))) | |
48e416d4 RS |
1140 | call0 (Qrecompute_lucid_menubar); |
1141 | ||
71918b75 RS |
1142 | before_command_key_count = this_command_key_count; |
1143 | before_command_echo_length = echo_length (); | |
1144 | ||
d7437ef6 RS |
1145 | this_command = Qnil; |
1146 | ||
8f805655 | 1147 | /* Read next key sequence; i gets its length. */ |
ce98e608 KH |
1148 | i = read_key_sequence (keybuf, sizeof keybuf / sizeof keybuf[0], |
1149 | Qnil, 0, 1); | |
8f805655 JB |
1150 | |
1151 | ++num_input_keys; | |
1152 | ||
284f4730 JB |
1153 | /* Now we have read a key sequence of length I, |
1154 | or else I is 0 and we found end of file. */ | |
1155 | ||
1156 | if (i == 0) /* End of file -- happens only in */ | |
1157 | return Qnil; /* a kbd macro, at the end. */ | |
dcc408a0 RS |
1158 | /* -1 means read_key_sequence got a menu that was rejected. |
1159 | Just loop around and read another command. */ | |
1160 | if (i == -1) | |
1161 | { | |
1162 | cancel_echoing (); | |
1163 | this_command_key_count = 0; | |
ff4b06d3 | 1164 | goto finalize; |
dcc408a0 | 1165 | } |
284f4730 | 1166 | |
284f4730 JB |
1167 | last_command_char = keybuf[i - 1]; |
1168 | ||
75c0b143 RS |
1169 | /* If the previous command tried to force a specific window-start, |
1170 | forget about that, in case this command moves point far away | |
c422836d KH |
1171 | from that position. But also throw away beg_unchanged and |
1172 | end_unchanged information in that case, so that redisplay will | |
1173 | update the whole window properly. */ | |
1174 | if (!NILP (XWINDOW (selected_window)->force_start)) | |
1175 | { | |
1176 | XWINDOW (selected_window)->force_start = Qnil; | |
1177 | beg_unchanged = end_unchanged = 0; | |
1178 | } | |
75c0b143 | 1179 | |
284f4730 JB |
1180 | cmd = read_key_sequence_cmd; |
1181 | if (!NILP (Vexecuting_macro)) | |
1182 | { | |
1183 | if (!NILP (Vquit_flag)) | |
1184 | { | |
1185 | Vexecuting_macro = Qt; | |
1186 | QUIT; /* Make some noise. */ | |
1187 | /* Will return since macro now empty. */ | |
1188 | } | |
1189 | } | |
1190 | ||
1191 | /* Do redisplay processing after this command except in special | |
40932d1a RS |
1192 | cases identified below that set no_redisplay to 1. |
1193 | (actually, there's currently no way to prevent the redisplay, | |
1194 | and no_redisplay is ignored. | |
beecf6a1 | 1195 | Perhaps someday we will really implement it.) */ |
284f4730 JB |
1196 | no_redisplay = 0; |
1197 | ||
86e5706b RS |
1198 | prev_buffer = current_buffer; |
1199 | prev_modiff = MODIFF; | |
8746da95 | 1200 | last_point_position = PT; |
18cd2eeb | 1201 | XSETBUFFER (last_point_position_buffer, prev_buffer); |
86e5706b | 1202 | |
284f4730 JB |
1203 | /* Execute the command. */ |
1204 | ||
86e5706b | 1205 | this_command = cmd; |
a98ea3f9 RS |
1206 | /* Note that the value cell will never directly contain nil |
1207 | if the symbol is a local variable. */ | |
e98a93eb | 1208 | if (!NILP (Vpre_command_hook) && !NILP (Vrun_hooks)) |
a98ea3f9 | 1209 | safe_run_hooks (Qpre_command_hook); |
86e5706b | 1210 | |
258bf746 | 1211 | if (NILP (this_command)) |
284f4730 JB |
1212 | { |
1213 | /* nil means key is undefined. */ | |
1214 | bitch_at_user (); | |
c5fdd383 | 1215 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 | 1216 | update_mode_lines = 1; |
d8bcf58e | 1217 | current_kboard->Vprefix_arg = Qnil; |
284f4730 JB |
1218 | } |
1219 | else | |
1220 | { | |
d8bcf58e | 1221 | if (NILP (current_kboard->Vprefix_arg) && ! no_direct) |
284f4730 JB |
1222 | { |
1223 | /* Recognize some common commands in common situations and | |
1224 | do them directly. */ | |
8001d352 | 1225 | if (EQ (this_command, Qforward_char) && PT < ZV) |
284f4730 | 1226 | { |
51ad8a68 | 1227 | struct Lisp_Char_Table *dp |
284f4730 | 1228 | = window_display_table (XWINDOW (selected_window)); |
8001d352 KH |
1229 | lose = FETCH_CHAR (PT); |
1230 | SET_PT (PT + 1); | |
0f7a8fee | 1231 | if ((dp |
82ba47d7 | 1232 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) |
9a5540db RS |
1233 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 |
1234 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1235 | && (lose >= 0x20 && lose < 0x7f))) | |
0f7a8fee | 1236 | : (lose >= 0x20 && lose < 0x7f)) |
284f4730 JB |
1237 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1238 | >= MODIFF) | |
1239 | && (XFASTINT (XWINDOW (selected_window)->last_point) | |
8001d352 | 1240 | == PT - 1) |
284f4730 JB |
1241 | && !windows_or_buffers_changed |
1242 | && EQ (current_buffer->selective_display, Qnil) | |
1243 | && !detect_input_pending () | |
8bb1c042 | 1244 | && NILP (Vcolumn_number_mode) |
284f4730 JB |
1245 | && NILP (Vexecuting_macro)) |
1246 | no_redisplay = direct_output_forward_char (1); | |
1247 | goto directly_done; | |
1248 | } | |
8001d352 | 1249 | else if (EQ (this_command, Qbackward_char) && PT > BEGV) |
284f4730 | 1250 | { |
51ad8a68 | 1251 | struct Lisp_Char_Table *dp |
284f4730 | 1252 | = window_display_table (XWINDOW (selected_window)); |
8001d352 KH |
1253 | SET_PT (PT - 1); |
1254 | lose = FETCH_CHAR (PT); | |
0f7a8fee | 1255 | if ((dp |
ca873d73 | 1256 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) |
9a5540db RS |
1257 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 |
1258 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1259 | && (lose >= 0x20 && lose < 0x7f))) | |
0f7a8fee | 1260 | : (lose >= 0x20 && lose < 0x7f)) |
284f4730 JB |
1261 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1262 | >= MODIFF) | |
1263 | && (XFASTINT (XWINDOW (selected_window)->last_point) | |
8001d352 | 1264 | == PT + 1) |
284f4730 JB |
1265 | && !windows_or_buffers_changed |
1266 | && EQ (current_buffer->selective_display, Qnil) | |
1267 | && !detect_input_pending () | |
8bb1c042 | 1268 | && NILP (Vcolumn_number_mode) |
284f4730 JB |
1269 | && NILP (Vexecuting_macro)) |
1270 | no_redisplay = direct_output_forward_char (-1); | |
1271 | goto directly_done; | |
1272 | } | |
258bf746 | 1273 | else if (EQ (this_command, Qself_insert_command) |
284f4730 | 1274 | /* Try this optimization only on ascii keystrokes. */ |
8c18cbfb | 1275 | && INTEGERP (last_command_char)) |
284f4730 JB |
1276 | { |
1277 | unsigned char c = XINT (last_command_char); | |
fc9cce4e | 1278 | int value; |
284f4730 | 1279 | |
fc9cce4e RS |
1280 | if (NILP (Vexecuting_macro) |
1281 | && !EQ (minibuf_window, selected_window)) | |
284f4730 JB |
1282 | { |
1283 | if (!nonundocount || nonundocount >= 20) | |
1284 | { | |
1285 | Fundo_boundary (); | |
1286 | nonundocount = 0; | |
1287 | } | |
1288 | nonundocount++; | |
1289 | } | |
fc9cce4e RS |
1290 | lose = ((XFASTINT (XWINDOW (selected_window)->last_modified) |
1291 | < MODIFF) | |
1292 | || (XFASTINT (XWINDOW (selected_window)->last_point) | |
1293 | != PT) | |
4c61f38e | 1294 | || MODIFF <= SAVE_MODIFF |
fc9cce4e RS |
1295 | || windows_or_buffers_changed |
1296 | || !EQ (current_buffer->selective_display, Qnil) | |
1297 | || detect_input_pending () | |
8bb1c042 | 1298 | || !NILP (Vcolumn_number_mode) |
fc9cce4e RS |
1299 | || !NILP (Vexecuting_macro)); |
1300 | value = internal_self_insert (c, 0); | |
1301 | if (value) | |
1302 | lose = 1; | |
1303 | if (value == 2) | |
1304 | nonundocount = 0; | |
1305 | ||
1306 | if (!lose | |
1307 | && (PT == ZV || FETCH_CHAR (PT) == '\n')) | |
284f4730 | 1308 | { |
51ad8a68 | 1309 | struct Lisp_Char_Table *dp |
284f4730 | 1310 | = window_display_table (XWINDOW (selected_window)); |
b8d9050d | 1311 | int lose = c; |
284f4730 | 1312 | |
0f7a8fee JB |
1313 | if (dp) |
1314 | { | |
9b8eb840 | 1315 | Lisp_Object obj; |
0f7a8fee | 1316 | |
9b8eb840 | 1317 | obj = DISP_CHAR_VECTOR (dp, lose); |
054c8675 | 1318 | if (NILP (obj)) |
8e91f441 RS |
1319 | { |
1320 | /* Do it only for char codes | |
1321 | that by default display as themselves. */ | |
1322 | if (lose >= 0x20 && lose <= 0x7e) | |
1323 | no_redisplay = direct_output_for_insert (lose); | |
1324 | } | |
8c18cbfb | 1325 | else if (VECTORP (obj) |
054c8675 | 1326 | && XVECTOR (obj)->size == 1 |
8c18cbfb KH |
1327 | && (obj = XVECTOR (obj)->contents[0], |
1328 | INTEGERP (obj)) | |
054c8675 RS |
1329 | /* Insist face not specified in glyph. */ |
1330 | && (XINT (obj) & ((-1) << 8)) == 0) | |
bd48a052 RS |
1331 | no_redisplay |
1332 | = direct_output_for_insert (XINT (obj)); | |
0f7a8fee JB |
1333 | } |
1334 | else | |
1335 | { | |
1336 | if (lose >= 0x20 && lose <= 0x7e) | |
1337 | no_redisplay = direct_output_for_insert (lose); | |
1338 | } | |
284f4730 JB |
1339 | } |
1340 | goto directly_done; | |
1341 | } | |
1342 | } | |
1343 | ||
1344 | /* Here for a command that isn't executed directly */ | |
1345 | ||
1346 | nonundocount = 0; | |
d8bcf58e | 1347 | if (NILP (current_kboard->Vprefix_arg)) |
284f4730 | 1348 | Fundo_boundary (); |
aaf2ead7 | 1349 | Fcommand_execute (this_command, Qnil, Qnil); |
284f4730 | 1350 | |
284f4730 | 1351 | } |
a764a753 | 1352 | directly_done: ; |
284f4730 | 1353 | |
a98ea3f9 RS |
1354 | /* Note that the value cell will never directly contain nil |
1355 | if the symbol is a local variable. */ | |
e98a93eb | 1356 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) |
a98ea3f9 | 1357 | safe_run_hooks (Qpost_command_hook); |
86e5706b | 1358 | |
8a792f3a | 1359 | if (!NILP (Vdeferred_action_list)) |
3ef14e46 | 1360 | safe_run_hooks (Qdeferred_action_function); |
8a792f3a | 1361 | |
e98a93eb | 1362 | if (!NILP (Vpost_command_idle_hook) && !NILP (Vrun_hooks)) |
59aadc81 RS |
1363 | { |
1364 | if (NILP (Vunread_command_events) | |
1365 | && NILP (Vexecuting_macro) | |
1366 | && !NILP (sit_for (0, post_command_idle_delay, 0, 1))) | |
1367 | safe_run_hooks (Qpost_command_idle_hook); | |
1368 | } | |
1369 | ||
284f4730 | 1370 | /* If there is a prefix argument, |
6c7178b9 KH |
1371 | 1) We don't want Vlast_command to be ``universal-argument'' |
1372 | (that would be dumb), so don't set Vlast_command, | |
284f4730 JB |
1373 | 2) we want to leave echoing on so that the prefix will be |
1374 | echoed as part of this key sequence, so don't call | |
1375 | cancel_echoing, and | |
1376 | 3) we want to leave this_command_key_count non-zero, so that | |
1377 | read_char will realize that it is re-reading a character, and | |
217258d5 KH |
1378 | not echo it a second time. |
1379 | ||
1380 | If the command didn't actually create a prefix arg, | |
1381 | but is merely a frame event that is transparent to prefix args, | |
1382 | then the above doesn't apply. */ | |
1383 | if (NILP (current_kboard->Vprefix_arg) || CONSP (last_command_char)) | |
284f4730 | 1384 | { |
6c7178b9 | 1385 | current_kboard->Vlast_command = this_command; |
284f4730 JB |
1386 | cancel_echoing (); |
1387 | this_command_key_count = 0; | |
1388 | } | |
86e5706b | 1389 | |
88ce066e | 1390 | if (!NILP (current_buffer->mark_active) && !NILP (Vrun_hooks)) |
86e5706b RS |
1391 | { |
1392 | if (!NILP (Vdeactivate_mark) && !NILP (Vtransient_mark_mode)) | |
1393 | { | |
1394 | current_buffer->mark_active = Qnil; | |
1395 | call1 (Vrun_hooks, intern ("deactivate-mark-hook")); | |
1396 | } | |
1397 | else if (current_buffer != prev_buffer || MODIFF != prev_modiff) | |
1398 | call1 (Vrun_hooks, intern ("activate-mark-hook")); | |
1399 | } | |
ff4b06d3 KH |
1400 | |
1401 | finalize: | |
1402 | /* Install chars successfully executed in kbd macro. */ | |
1403 | ||
d8bcf58e KH |
1404 | if (!NILP (current_kboard->defining_kbd_macro) |
1405 | && NILP (current_kboard->Vprefix_arg)) | |
ff4b06d3 KH |
1406 | finalize_kbd_macro_chars (); |
1407 | ||
c5fdd383 | 1408 | #ifdef MULTI_KBOARD |
604ccd1d | 1409 | if (!was_locked) |
1e8bd3da | 1410 | any_kboard_state (); |
ff4b06d3 | 1411 | #endif |
284f4730 JB |
1412 | } |
1413 | } | |
1c9784c9 | 1414 | |
0bc3db2b RS |
1415 | /* Subroutine for safe_run_hooks: run the hook HOOK. */ |
1416 | ||
1417 | static Lisp_Object | |
1418 | safe_run_hooks_1 (hook) | |
1419 | Lisp_Object hook; | |
1420 | { | |
1421 | return call1 (Vrun_hooks, Vinhibit_quit); | |
1422 | } | |
1423 | ||
1424 | /* Subroutine for safe_run_hooks: handle an error by clearing out the hook. */ | |
1425 | ||
1426 | static Lisp_Object | |
1427 | safe_run_hooks_error (data) | |
1428 | Lisp_Object data; | |
1429 | { | |
1430 | Fset (Vinhibit_quit, Qnil); | |
1431 | } | |
1432 | ||
1c9784c9 KH |
1433 | /* If we get an error while running the hook, cause the hook variable |
1434 | to be nil. Also inhibit quits, so that C-g won't cause the hook | |
1435 | to mysteriously evaporate. */ | |
0bc3db2b | 1436 | |
68f297c5 | 1437 | void |
1c9784c9 | 1438 | safe_run_hooks (hook) |
a98ea3f9 | 1439 | Lisp_Object hook; |
1c9784c9 | 1440 | { |
68553292 | 1441 | Lisp_Object value; |
1c9784c9 | 1442 | int count = specpdl_ptr - specpdl; |
0bc3db2b RS |
1443 | specbind (Qinhibit_quit, hook); |
1444 | ||
e702932d | 1445 | internal_condition_case (safe_run_hooks_1, Qt, safe_run_hooks_error); |
1c9784c9 KH |
1446 | |
1447 | unbind_to (count, Qnil); | |
1448 | } | |
284f4730 JB |
1449 | \f |
1450 | /* Number of seconds between polling for input. */ | |
1451 | int polling_period; | |
1452 | ||
eb8c3be9 | 1453 | /* Nonzero means polling for input is temporarily suppressed. */ |
284f4730 JB |
1454 | int poll_suppress_count; |
1455 | ||
36922b18 | 1456 | /* Nonzero if polling_for_input is actually being used. */ |
284f4730 JB |
1457 | int polling_for_input; |
1458 | ||
36922b18 RS |
1459 | #ifdef POLL_FOR_INPUT |
1460 | ||
284f4730 JB |
1461 | /* Handle an alarm once each second and read pending input |
1462 | so as to handle a C-g if it comces in. */ | |
1463 | ||
1464 | SIGTYPE | |
91c049d4 RS |
1465 | input_poll_signal (signalnum) /* If we don't have an argument, */ |
1466 | int signalnum; /* some compilers complain in signal calls. */ | |
284f4730 | 1467 | { |
9ac0d9e0 JB |
1468 | if (interrupt_input_blocked == 0 |
1469 | && !waiting_for_input) | |
1470 | read_avail_input (0); | |
284f4730 JB |
1471 | signal (SIGALRM, input_poll_signal); |
1472 | alarm (polling_period); | |
1473 | } | |
1474 | ||
1475 | #endif | |
1476 | ||
1477 | /* Begin signals to poll for input, if they are appropriate. | |
1478 | This function is called unconditionally from various places. */ | |
1479 | ||
1480 | start_polling () | |
1481 | { | |
1482 | #ifdef POLL_FOR_INPUT | |
34f04431 | 1483 | if (read_socket_hook && !interrupt_input) |
284f4730 JB |
1484 | { |
1485 | poll_suppress_count--; | |
1486 | if (poll_suppress_count == 0) | |
1487 | { | |
1488 | signal (SIGALRM, input_poll_signal); | |
1489 | polling_for_input = 1; | |
1490 | alarm (polling_period); | |
1491 | } | |
1492 | } | |
1493 | #endif | |
1494 | } | |
1495 | ||
1d3195db RS |
1496 | /* Nonzero if we are using polling to handle input asynchronously. */ |
1497 | ||
1498 | int | |
1499 | input_polling_used () | |
1500 | { | |
1501 | #ifdef POLL_FOR_INPUT | |
1502 | return read_socket_hook && !interrupt_input; | |
1503 | #else | |
1504 | return 0; | |
1505 | #endif | |
1506 | } | |
1507 | ||
284f4730 JB |
1508 | /* Turn off polling. */ |
1509 | ||
1510 | stop_polling () | |
1511 | { | |
1512 | #ifdef POLL_FOR_INPUT | |
34f04431 | 1513 | if (read_socket_hook && !interrupt_input) |
284f4730 JB |
1514 | { |
1515 | if (poll_suppress_count == 0) | |
1516 | { | |
1517 | polling_for_input = 0; | |
1518 | alarm (0); | |
1519 | } | |
1520 | poll_suppress_count++; | |
1521 | } | |
1522 | #endif | |
1523 | } | |
fe8aeef3 RS |
1524 | |
1525 | /* Set the value of poll_suppress_count to COUNT | |
1526 | and start or stop polling accordingly. */ | |
1527 | ||
1528 | void | |
1529 | set_poll_suppress_count (count) | |
1530 | int count; | |
1531 | { | |
1532 | #ifdef POLL_FOR_INPUT | |
1533 | if (count == 0 && poll_suppress_count != 0) | |
1534 | { | |
1535 | poll_suppress_count = 1; | |
1536 | start_polling (); | |
1537 | } | |
1538 | else if (count != 0 && poll_suppress_count == 0) | |
1539 | { | |
1540 | stop_polling (); | |
1541 | } | |
1542 | poll_suppress_count = count; | |
1543 | #endif | |
1544 | } | |
f4eef8b4 | 1545 | |
d0a57728 RS |
1546 | /* Bind polling_period to a value at least N. |
1547 | But don't decrease it. */ | |
1548 | ||
f4eef8b4 RS |
1549 | bind_polling_period (n) |
1550 | int n; | |
1551 | { | |
1552 | #ifdef POLL_FOR_INPUT | |
d0a57728 RS |
1553 | int new = polling_period; |
1554 | ||
1555 | if (n > new) | |
1556 | new = n; | |
1557 | ||
f4eef8b4 | 1558 | stop_polling (); |
d0a57728 RS |
1559 | specbind (Qpolling_period, make_number (new)); |
1560 | /* Start a new alarm with the new period. */ | |
f4eef8b4 RS |
1561 | start_polling (); |
1562 | #endif | |
1563 | } | |
284f4730 | 1564 | \f |
6da3dd3a RS |
1565 | /* Apply the control modifier to CHARACTER. */ |
1566 | ||
faf5e407 JB |
1567 | int |
1568 | make_ctrl_char (c) | |
1569 | int c; | |
1570 | { | |
d205953b JB |
1571 | /* Save the upper bits here. */ |
1572 | int upper = c & ~0177; | |
1573 | ||
1574 | c &= 0177; | |
1575 | ||
1576 | /* Everything in the columns containing the upper-case letters | |
1577 | denotes a control character. */ | |
1578 | if (c >= 0100 && c < 0140) | |
1579 | { | |
1580 | int oc = c; | |
1581 | c &= ~0140; | |
1582 | /* Set the shift modifier for a control char | |
1583 | made from a shifted letter. But only for letters! */ | |
1584 | if (oc >= 'A' && oc <= 'Z') | |
1585 | c |= shift_modifier; | |
1586 | } | |
1587 | ||
1588 | /* The lower-case letters denote control characters too. */ | |
1589 | else if (c >= 'a' && c <= 'z') | |
1590 | c &= ~0140; | |
1591 | ||
1592 | /* Include the bits for control and shift | |
1593 | only if the basic ASCII code can't indicate them. */ | |
1594 | else if (c >= ' ') | |
1595 | c |= ctrl_modifier; | |
1596 | ||
1597 | /* Replace the high bits. */ | |
1598 | c |= (upper & ~ctrl_modifier); | |
faf5e407 JB |
1599 | |
1600 | return c; | |
1601 | } | |
1602 | ||
1603 | ||
1604 | \f | |
284f4730 JB |
1605 | /* Input of single characters from keyboard */ |
1606 | ||
1607 | Lisp_Object print_help (); | |
1608 | static Lisp_Object kbd_buffer_get_event (); | |
e4fe371d | 1609 | static void record_char (); |
284f4730 | 1610 | |
c5fdd383 KH |
1611 | #ifdef MULTI_KBOARD |
1612 | static jmp_buf wrong_kboard_jmpbuf; | |
bded54dd | 1613 | #endif |
beecf6a1 | 1614 | |
284f4730 JB |
1615 | /* read a character from the keyboard; call the redisplay if needed */ |
1616 | /* commandflag 0 means do not do auto-saving, but do do redisplay. | |
1617 | -1 means do not do redisplay, but do do autosaving. | |
1618 | 1 means do both. */ | |
1619 | ||
7d6de002 RS |
1620 | /* The arguments MAPS and NMAPS are for menu prompting. |
1621 | MAPS is an array of keymaps; NMAPS is the length of MAPS. | |
1622 | ||
1623 | PREV_EVENT is the previous input event, or nil if we are reading | |
1624 | the first event of a key sequence. | |
1625 | ||
83d68044 | 1626 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 1627 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 1628 | USED_MOUSE_MENU is null, we don't dereference it. |
dcc408a0 RS |
1629 | |
1630 | Value is t if we showed a menu and the user rejected it. */ | |
7d6de002 | 1631 | |
284f4730 | 1632 | Lisp_Object |
7d6de002 | 1633 | read_char (commandflag, nmaps, maps, prev_event, used_mouse_menu) |
284f4730 | 1634 | int commandflag; |
7d6de002 RS |
1635 | int nmaps; |
1636 | Lisp_Object *maps; | |
1637 | Lisp_Object prev_event; | |
1638 | int *used_mouse_menu; | |
284f4730 JB |
1639 | { |
1640 | register Lisp_Object c; | |
1641 | int count; | |
410d4de9 | 1642 | jmp_buf local_getcjmp; |
284f4730 | 1643 | jmp_buf save_jump; |
a1341f75 | 1644 | int key_already_recorded = 0; |
017c7cb6 | 1645 | Lisp_Object tem, save; |
e4fe371d RS |
1646 | Lisp_Object also_record; |
1647 | also_record = Qnil; | |
284f4730 | 1648 | |
71918b75 RS |
1649 | before_command_key_count = this_command_key_count; |
1650 | before_command_echo_length = echo_length (); | |
1651 | ||
7f07d5ca RS |
1652 | retry: |
1653 | ||
24597608 | 1654 | if (CONSP (Vunread_command_events)) |
284f4730 | 1655 | { |
24597608 RS |
1656 | c = XCONS (Vunread_command_events)->car; |
1657 | Vunread_command_events = XCONS (Vunread_command_events)->cdr; | |
284f4730 | 1658 | |
2479e91e RS |
1659 | /* Undo what read_char_x_menu_prompt did when it unread |
1660 | additional keys returned by Fx_popup_menu. */ | |
1661 | if (CONSP (c) | |
1662 | && (SYMBOLP (XCONS (c)->car) || INTEGERP (XCONS (c)->car)) | |
1663 | && NILP (XCONS (c)->cdr)) | |
1664 | c = XCONS (c)->car; | |
1665 | ||
284f4730 JB |
1666 | if (this_command_key_count == 0) |
1667 | goto reread_first; | |
1668 | else | |
1669 | goto reread; | |
1670 | } | |
1671 | ||
86e5706b RS |
1672 | if (unread_command_char != -1) |
1673 | { | |
18cd2eeb | 1674 | XSETINT (c, unread_command_char); |
86e5706b RS |
1675 | unread_command_char = -1; |
1676 | ||
1677 | if (this_command_key_count == 0) | |
1678 | goto reread_first; | |
1679 | else | |
1680 | goto reread; | |
1681 | } | |
1682 | ||
71918b75 RS |
1683 | /* If there is no function key translated before |
1684 | reset-this-command-lengths takes effect, forget about it. */ | |
1685 | before_command_restore_flag = 0; | |
1686 | ||
284f4730 JB |
1687 | if (!NILP (Vexecuting_macro)) |
1688 | { | |
07d2b8de | 1689 | #ifdef MULTI_FRAME |
fce33686 JB |
1690 | /* We set this to Qmacro; since that's not a frame, nobody will |
1691 | try to switch frames on us, and the selected window will | |
1692 | remain unchanged. | |
1693 | ||
1694 | Since this event came from a macro, it would be misleading to | |
eb8c3be9 | 1695 | leave internal_last_event_frame set to wherever the last |
3c370943 JB |
1696 | real event came from. Normally, a switch-frame event selects |
1697 | internal_last_event_frame after each command is read, but | |
1698 | events read from a macro should never cause a new frame to be | |
1699 | selected. */ | |
4c52b668 | 1700 | Vlast_event_frame = internal_last_event_frame = Qmacro; |
07d2b8de | 1701 | #endif |
fce33686 | 1702 | |
663258f2 JB |
1703 | /* Exit the macro if we are at the end. |
1704 | Also, some things replace the macro with t | |
1705 | to force an early exit. */ | |
1706 | if (EQ (Vexecuting_macro, Qt) | |
1707 | || executing_macro_index >= XFASTINT (Flength (Vexecuting_macro))) | |
284f4730 | 1708 | { |
18cd2eeb | 1709 | XSETINT (c, -1); |
284f4730 JB |
1710 | return c; |
1711 | } | |
df0f2ba1 | 1712 | |
284f4730 | 1713 | c = Faref (Vexecuting_macro, make_number (executing_macro_index)); |
8c18cbfb | 1714 | if (STRINGP (Vexecuting_macro) |
86e5706b | 1715 | && (XINT (c) & 0x80)) |
bb9e9bed | 1716 | XSETFASTINT (c, CHAR_META | (XINT (c) & ~0x80)); |
86e5706b | 1717 | |
284f4730 JB |
1718 | executing_macro_index++; |
1719 | ||
1720 | goto from_macro; | |
1721 | } | |
1722 | ||
cd21b839 JB |
1723 | if (!NILP (unread_switch_frame)) |
1724 | { | |
1725 | c = unread_switch_frame; | |
1726 | unread_switch_frame = Qnil; | |
1727 | ||
1728 | /* This event should make it into this_command_keys, and get echoed | |
f4255cd1 JB |
1729 | again, so we go to reread_first, rather than reread. */ |
1730 | goto reread_first; | |
cd21b839 JB |
1731 | } |
1732 | ||
410d4de9 RS |
1733 | if (commandflag >= 0 && !input_pending && !detect_input_pending ()) |
1734 | redisplay (); | |
e9bf89a0 | 1735 | |
410d4de9 RS |
1736 | /* Message turns off echoing unless more keystrokes turn it on again. */ |
1737 | if (echo_area_glyphs && *echo_area_glyphs | |
1fc93d49 | 1738 | && echo_area_glyphs != current_kboard->echobuf |
0c04a67e | 1739 | && ok_to_echo_at_next_pause != echo_area_glyphs) |
410d4de9 RS |
1740 | cancel_echoing (); |
1741 | else | |
1742 | /* If already echoing, continue. */ | |
1743 | echo_dash (); | |
284f4730 | 1744 | |
410d4de9 RS |
1745 | /* Try reading a character via menu prompting in the minibuf. |
1746 | Try this before the sit-for, because the sit-for | |
1747 | would do the wrong thing if we are supposed to do | |
1748 | menu prompting. If EVENT_HAS_PARAMETERS then we are reading | |
1749 | after a mouse event so don't try a minibuf menu. */ | |
1750 | c = Qnil; | |
1751 | if (nmaps > 0 && INTERACTIVE | |
1752 | && !NILP (prev_event) && ! EVENT_HAS_PARAMETERS (prev_event) | |
1753 | /* Don't bring up a menu if we already have another event. */ | |
1754 | && NILP (Vunread_command_events) | |
1755 | && unread_command_char < 0 | |
1756 | && !detect_input_pending ()) | |
1757 | { | |
1758 | c = read_char_minibuf_menu_prompt (commandflag, nmaps, maps); | |
1759 | if (! NILP (c)) | |
1760 | { | |
1761 | key_already_recorded = 1; | |
1762 | goto non_reread_1; | |
1763 | } | |
1764 | } | |
284f4730 | 1765 | |
410d4de9 RS |
1766 | /* Make a longjmp point for quits to use, but don't alter getcjmp just yet. |
1767 | We will do that below, temporarily for short sections of code, | |
1768 | when appropriate. local_getcjmp must be in effect | |
1769 | around any call to sit_for or kbd_buffer_get_event; | |
1770 | it *must not* be in effect when we call redisplay. */ | |
284f4730 | 1771 | |
410d4de9 | 1772 | if (_setjmp (local_getcjmp)) |
284f4730 | 1773 | { |
18cd2eeb | 1774 | XSETINT (c, quit_char); |
07d2b8de | 1775 | #ifdef MULTI_FRAME |
4c52b668 KH |
1776 | XSETFRAME (internal_last_event_frame, selected_frame); |
1777 | Vlast_event_frame = internal_last_event_frame; | |
07d2b8de | 1778 | #endif |
04904c29 RS |
1779 | /* If we report the quit char as an event, |
1780 | don't do so more than once. */ | |
1781 | if (!NILP (Vinhibit_quit)) | |
1782 | Vquit_flag = Qnil; | |
284f4730 | 1783 | |
c5fdd383 | 1784 | #ifdef MULTI_KBOARD |
df0f2ba1 | 1785 | { |
c5fdd383 KH |
1786 | KBOARD *kb = FRAME_KBOARD (selected_frame); |
1787 | if (kb != current_kboard) | |
df0f2ba1 | 1788 | { |
c5fdd383 | 1789 | Lisp_Object *tailp = &kb->kbd_queue; |
1e8bd3da RS |
1790 | /* We shouldn't get here if we were in single-kboard mode! */ |
1791 | if (single_kboard) | |
df0f2ba1 KH |
1792 | abort (); |
1793 | while (CONSP (*tailp)) | |
1794 | tailp = &XCONS (*tailp)->cdr; | |
1795 | if (!NILP (*tailp)) | |
1796 | abort (); | |
1797 | *tailp = Fcons (c, Qnil); | |
c5fdd383 KH |
1798 | kb->kbd_queue_has_data = 1; |
1799 | current_kboard = kb; | |
1800 | longjmp (wrong_kboard_jmpbuf, 1); | |
df0f2ba1 KH |
1801 | } |
1802 | } | |
1803 | #endif | |
284f4730 JB |
1804 | goto non_reread; |
1805 | } | |
1806 | ||
284f4730 JB |
1807 | /* If in middle of key sequence and minibuffer not active, |
1808 | start echoing if enough time elapses. */ | |
410d4de9 | 1809 | |
c5fdd383 | 1810 | if (minibuf_level == 0 && !current_kboard->immediate_echo |
6c6083a9 | 1811 | && this_command_key_count > 0 |
27203ead | 1812 | && ! noninteractive |
284f4730 | 1813 | && echo_keystrokes > 0 |
1fc93d49 | 1814 | && (echo_area_glyphs == 0 || *echo_area_glyphs == 0 |
0c04a67e | 1815 | || ok_to_echo_at_next_pause == echo_area_glyphs)) |
284f4730 JB |
1816 | { |
1817 | Lisp_Object tem0; | |
1818 | ||
7d6de002 RS |
1819 | /* After a mouse event, start echoing right away. |
1820 | This is because we are probably about to display a menu, | |
1821 | and we don't want to delay before doing so. */ | |
dbc4e1c1 | 1822 | if (EVENT_HAS_PARAMETERS (prev_event)) |
284f4730 | 1823 | echo (); |
7d6de002 RS |
1824 | else |
1825 | { | |
410d4de9 RS |
1826 | save_getcjmp (save_jump); |
1827 | restore_getcjmp (local_getcjmp); | |
7d6de002 | 1828 | tem0 = sit_for (echo_keystrokes, 0, 1, 1); |
410d4de9 | 1829 | restore_getcjmp (save_jump); |
7d6de002 RS |
1830 | if (EQ (tem0, Qt)) |
1831 | echo (); | |
1832 | } | |
284f4730 JB |
1833 | } |
1834 | ||
410d4de9 | 1835 | /* Maybe auto save due to number of keystrokes. */ |
284f4730 JB |
1836 | |
1837 | if (commandflag != 0 | |
1838 | && auto_save_interval > 0 | |
51172b6d | 1839 | && num_nonmacro_input_chars - last_auto_save > max (auto_save_interval, 20) |
284f4730 JB |
1840 | && !detect_input_pending ()) |
1841 | { | |
284f4730 | 1842 | Fdo_auto_save (Qnil, Qnil); |
ef8fd672 RS |
1843 | /* Hooks can actually change some buffers in auto save. */ |
1844 | redisplay (); | |
284f4730 JB |
1845 | } |
1846 | ||
8150596a | 1847 | /* Try reading using an X menu. |
24597608 RS |
1848 | This is never confused with reading using the minibuf |
1849 | because the recursive call of read_char in read_char_minibuf_menu_prompt | |
1850 | does not pass on any keymaps. */ | |
410d4de9 | 1851 | |
24597608 | 1852 | if (nmaps > 0 && INTERACTIVE |
5a8d99e0 KH |
1853 | && !NILP (prev_event) |
1854 | && EVENT_HAS_PARAMETERS (prev_event) | |
1855 | && !EQ (XCONS (prev_event)->car, Qmenu_bar) | |
24597608 RS |
1856 | /* Don't bring up a menu if we already have another event. */ |
1857 | && NILP (Vunread_command_events) | |
b8556aee | 1858 | && unread_command_char < 0) |
8150596a | 1859 | c = read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu); |
7d6de002 | 1860 | |
410d4de9 RS |
1861 | /* Maybe autosave and/or garbage collect due to idleness. */ |
1862 | ||
26c1639e | 1863 | if (INTERACTIVE && NILP (c)) |
7d6de002 RS |
1864 | { |
1865 | int delay_level, buffer_size; | |
1866 | ||
410d4de9 RS |
1867 | /* Slow down auto saves logarithmically in size of current buffer, |
1868 | and garbage collect while we're at it. */ | |
7d6de002 RS |
1869 | if (! MINI_WINDOW_P (XWINDOW (selected_window))) |
1870 | last_non_minibuf_size = Z - BEG; | |
1871 | buffer_size = (last_non_minibuf_size >> 8) + 1; | |
1872 | delay_level = 0; | |
1873 | while (buffer_size > 64) | |
1874 | delay_level++, buffer_size -= buffer_size >> 2; | |
1875 | if (delay_level < 4) delay_level = 4; | |
1876 | /* delay_level is 4 for files under around 50k, 7 at 100k, | |
1877 | 9 at 200k, 11 at 300k, and 12 at 500k. It is 15 at 1 meg. */ | |
1878 | ||
1879 | /* Auto save if enough time goes by without input. */ | |
1880 | if (commandflag != 0 | |
51172b6d | 1881 | && num_nonmacro_input_chars > last_auto_save |
8c18cbfb | 1882 | && INTEGERP (Vauto_save_timeout) |
7d6de002 RS |
1883 | && XINT (Vauto_save_timeout) > 0) |
1884 | { | |
1885 | Lisp_Object tem0; | |
1886 | int delay = delay_level * XFASTINT (Vauto_save_timeout) / 4; | |
410d4de9 RS |
1887 | |
1888 | save_getcjmp (save_jump); | |
1889 | restore_getcjmp (local_getcjmp); | |
7d6de002 | 1890 | tem0 = sit_for (delay, 0, 1, 1); |
410d4de9 RS |
1891 | restore_getcjmp (save_jump); |
1892 | ||
7d6de002 RS |
1893 | if (EQ (tem0, Qt)) |
1894 | { | |
7d6de002 | 1895 | Fdo_auto_save (Qnil, Qnil); |
7d6de002 RS |
1896 | |
1897 | /* If we have auto-saved and there is still no input | |
1898 | available, garbage collect if there has been enough | |
1899 | consing going on to make it worthwhile. */ | |
1900 | if (!detect_input_pending () | |
1901 | && consing_since_gc > gc_cons_threshold / 2) | |
ef8fd672 | 1902 | Fgarbage_collect (); |
410d4de9 | 1903 | |
ef8fd672 | 1904 | redisplay (); |
7d6de002 RS |
1905 | } |
1906 | } | |
1907 | } | |
284f4730 | 1908 | |
410d4de9 RS |
1909 | /* Read something from current KBOARD's side queue, if possible. */ |
1910 | ||
beecf6a1 | 1911 | if (NILP (c)) |
1e12dd87 | 1912 | { |
c5fdd383 | 1913 | if (current_kboard->kbd_queue_has_data) |
beecf6a1 | 1914 | { |
c5fdd383 | 1915 | if (!CONSP (current_kboard->kbd_queue)) |
4524b161 | 1916 | abort (); |
c5fdd383 KH |
1917 | c = XCONS (current_kboard->kbd_queue)->car; |
1918 | current_kboard->kbd_queue | |
1919 | = XCONS (current_kboard->kbd_queue)->cdr; | |
1920 | if (NILP (current_kboard->kbd_queue)) | |
1921 | current_kboard->kbd_queue_has_data = 0; | |
4c52b668 KH |
1922 | input_pending = readable_events (); |
1923 | #ifdef MULTI_FRAME | |
1924 | if (EVENT_HAS_PARAMETERS (c) | |
1925 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qswitch_frame)) | |
1926 | internal_last_event_frame = XCONS (XCONS (c)->cdr)->car; | |
1927 | Vlast_event_frame = internal_last_event_frame; | |
1928 | #endif | |
beecf6a1 | 1929 | } |
1e8bd3da RS |
1930 | } |
1931 | ||
c5fdd383 | 1932 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
1933 | /* If current_kboard's side queue is empty check the other kboards. |
1934 | If one of them has data that we have not yet seen here, | |
1935 | switch to it and process the data waiting for it. | |
1936 | ||
1937 | Note: if the events queued up for another kboard | |
1938 | have already been seen here, and therefore are not a complete command, | |
1939 | the kbd_queue_has_data field is 0, so we skip that kboard here. | |
1940 | That's to avoid an infinite loop switching between kboards here. */ | |
1941 | if (NILP (c) && !single_kboard) | |
1942 | { | |
1943 | KBOARD *kb; | |
1944 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
1945 | if (kb->kbd_queue_has_data) | |
1946 | { | |
1947 | current_kboard = kb; | |
1948 | longjmp (wrong_kboard_jmpbuf, 1); | |
1949 | } | |
1950 | } | |
df0f2ba1 KH |
1951 | #endif |
1952 | ||
410d4de9 RS |
1953 | wrong_kboard: |
1954 | ||
1955 | stop_polling (); | |
1956 | ||
1e8bd3da RS |
1957 | /* Finally, we read from the main queue, |
1958 | and if that gives us something we can't use yet, we put it on the | |
1959 | appropriate side queue and try again. */ | |
410d4de9 | 1960 | |
1e8bd3da RS |
1961 | if (NILP (c)) |
1962 | { | |
1963 | KBOARD *kb; | |
1964 | ||
1e8bd3da | 1965 | /* Actually read a character, waiting if necessary. */ |
410d4de9 RS |
1966 | save_getcjmp (save_jump); |
1967 | restore_getcjmp (local_getcjmp); | |
83d68044 | 1968 | c = kbd_buffer_get_event (&kb, used_mouse_menu); |
410d4de9 RS |
1969 | restore_getcjmp (save_jump); |
1970 | ||
c5fdd383 | 1971 | #ifdef MULTI_KBOARD |
410d4de9 | 1972 | if (! NILP (c) && (kb != current_kboard)) |
1e8bd3da RS |
1973 | { |
1974 | Lisp_Object *tailp = &kb->kbd_queue; | |
1975 | while (CONSP (*tailp)) | |
1976 | tailp = &XCONS (*tailp)->cdr; | |
1977 | if (!NILP (*tailp)) | |
1978 | abort (); | |
1979 | *tailp = Fcons (c, Qnil); | |
1980 | kb->kbd_queue_has_data = 1; | |
46b84797 | 1981 | c = Qnil; |
1e8bd3da RS |
1982 | if (single_kboard) |
1983 | goto wrong_kboard; | |
1984 | current_kboard = kb; | |
1985 | longjmp (wrong_kboard_jmpbuf, 1); | |
df0f2ba1 | 1986 | } |
1e8bd3da | 1987 | #endif |
beecf6a1 | 1988 | } |
1e8bd3da | 1989 | |
284f4730 | 1990 | /* Terminate Emacs in batch mode if at eof. */ |
8c18cbfb | 1991 | if (noninteractive && INTEGERP (c) && XINT (c) < 0) |
284f4730 JB |
1992 | Fkill_emacs (make_number (1)); |
1993 | ||
8c18cbfb | 1994 | if (INTEGERP (c)) |
80645119 JB |
1995 | { |
1996 | /* Add in any extra modifiers, where appropriate. */ | |
1997 | if ((extra_keyboard_modifiers & CHAR_CTL) | |
1998 | || ((extra_keyboard_modifiers & 0177) < ' ' | |
1999 | && (extra_keyboard_modifiers & 0177) != 0)) | |
faf5e407 | 2000 | XSETINT (c, make_ctrl_char (XINT (c))); |
80645119 JB |
2001 | |
2002 | /* Transfer any other modifier bits directly from | |
2003 | extra_keyboard_modifiers to c. Ignore the actual character code | |
2004 | in the low 16 bits of extra_keyboard_modifiers. */ | |
b8d9050d | 2005 | XSETINT (c, XINT (c) | (extra_keyboard_modifiers & ~0xff7f & ~CHAR_CTL)); |
80645119 | 2006 | } |
9fa4395d | 2007 | |
284f4730 JB |
2008 | non_reread: |
2009 | ||
284f4730 JB |
2010 | start_polling (); |
2011 | ||
410d4de9 RS |
2012 | if (NILP (c)) |
2013 | { | |
2014 | if (commandflag >= 0 | |
2015 | && !input_pending && !detect_input_pending ()) | |
2016 | redisplay (); | |
2017 | ||
2018 | goto wrong_kboard; | |
2019 | } | |
2020 | ||
2021 | non_reread_1: | |
2022 | ||
dfd11da7 RS |
2023 | /* Buffer switch events are only for internal wakeups |
2024 | so don't show them to the user. */ | |
8c18cbfb | 2025 | if (BUFFERP (c)) |
dfd11da7 RS |
2026 | return c; |
2027 | ||
a1341f75 RS |
2028 | if (key_already_recorded) |
2029 | return c; | |
2030 | ||
7f07d5ca RS |
2031 | /* Process special events within read_char |
2032 | and loop around to read another event. */ | |
017c7cb6 RS |
2033 | save = Vquit_flag; |
2034 | Vquit_flag = Qnil; | |
7f07d5ca RS |
2035 | tem = get_keyelt (access_keymap (get_keymap_1 (Vspecial_event_map, 0, 0), |
2036 | c, 0, 0), 1); | |
017c7cb6 | 2037 | Vquit_flag = save; |
7f07d5ca RS |
2038 | |
2039 | if (!NILP (tem)) | |
2040 | { | |
2041 | last_input_char = c; | |
aaf2ead7 | 2042 | Fcommand_execute (tem, Qnil, Fvector (1, &last_input_char)); |
7f07d5ca RS |
2043 | goto retry; |
2044 | } | |
2045 | ||
dfd11da7 RS |
2046 | /* Wipe the echo area. */ |
2047 | echo_area_glyphs = 0; | |
284f4730 JB |
2048 | |
2049 | /* Handle things that only apply to characters. */ | |
8c18cbfb | 2050 | if (INTEGERP (c)) |
284f4730 JB |
2051 | { |
2052 | /* If kbd_buffer_get_event gave us an EOF, return that. */ | |
86e5706b | 2053 | if (XINT (c) == -1) |
284f4730 JB |
2054 | return c; |
2055 | ||
8c18cbfb | 2056 | if (STRINGP (Vkeyboard_translate_table) |
f4255cd1 JB |
2057 | && XSTRING (Vkeyboard_translate_table)->size > XFASTINT (c)) |
2058 | XSETINT (c, XSTRING (Vkeyboard_translate_table)->data[XFASTINT (c)]); | |
f9414d62 RS |
2059 | else if ((VECTORP (Vkeyboard_translate_table) |
2060 | && XVECTOR (Vkeyboard_translate_table)->size > XFASTINT (c)) | |
2061 | || CHAR_TABLE_P (Vkeyboard_translate_table)) | |
2062 | { | |
2063 | Lisp_Object d; | |
2064 | d = Faref (Vkeyboard_translate_table, c); | |
2065 | /* nil in keyboard-translate-table means no translation. */ | |
2066 | if (!NILP (d)) | |
2067 | c = d; | |
2068 | } | |
284f4730 JB |
2069 | } |
2070 | ||
e4fe371d RS |
2071 | /* If this event is a mouse click in the menu bar, |
2072 | return just menu-bar for now. Modify the mouse click event | |
2073 | so we won't do this twice, then queue it up. */ | |
2074 | if (EVENT_HAS_PARAMETERS (c) | |
2075 | && CONSP (XCONS (c)->cdr) | |
2076 | && CONSP (EVENT_START (c)) | |
2077 | && CONSP (XCONS (EVENT_START (c))->cdr)) | |
284f4730 | 2078 | { |
e4fe371d | 2079 | Lisp_Object posn; |
284f4730 | 2080 | |
e4fe371d RS |
2081 | posn = POSN_BUFFER_POSN (EVENT_START (c)); |
2082 | /* Handle menu-bar events: | |
2083 | insert the dummy prefix event `menu-bar'. */ | |
2084 | if (EQ (posn, Qmenu_bar)) | |
2085 | { | |
2086 | /* Change menu-bar to (menu-bar) as the event "position". */ | |
2087 | POSN_BUFFER_POSN (EVENT_START (c)) = Fcons (posn, Qnil); | |
284f4730 | 2088 | |
e4fe371d RS |
2089 | also_record = c; |
2090 | Vunread_command_events = Fcons (c, Vunread_command_events); | |
2091 | c = posn; | |
284f4730 | 2092 | } |
284f4730 JB |
2093 | } |
2094 | ||
e4fe371d RS |
2095 | record_char (c); |
2096 | if (! NILP (also_record)) | |
2097 | record_char (also_record); | |
51172b6d | 2098 | |
284f4730 JB |
2099 | from_macro: |
2100 | reread_first: | |
71918b75 RS |
2101 | before_command_key_count = this_command_key_count; |
2102 | before_command_echo_length = echo_length (); | |
284f4730 | 2103 | |
b8556aee | 2104 | /* Don't echo mouse motion events. */ |
8ea231fc RS |
2105 | if (echo_keystrokes |
2106 | && ! (EVENT_HAS_PARAMETERS (c) | |
2107 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
e4fe371d RS |
2108 | { |
2109 | echo_char (c); | |
2110 | if (! NILP (also_record)) | |
2111 | echo_char (also_record); | |
1fc93d49 RS |
2112 | /* Once we reread a character, echoing can happen |
2113 | the next time we pause to read a new one. */ | |
0c04a67e | 2114 | ok_to_echo_at_next_pause = echo_area_glyphs; |
e4fe371d | 2115 | } |
b8556aee | 2116 | |
db8c1663 | 2117 | /* Record this character as part of the current key. */ |
b8556aee | 2118 | add_command_key (c); |
e4fe371d RS |
2119 | if (! NILP (also_record)) |
2120 | add_command_key (also_record); | |
284f4730 JB |
2121 | |
2122 | /* Re-reading in the middle of a command */ | |
2123 | reread: | |
2124 | last_input_char = c; | |
2125 | num_input_chars++; | |
2126 | ||
2127 | /* Process the help character specially if enabled */ | |
ecb7cb34 | 2128 | if (!NILP (Vhelp_form) && help_char_p (c)) |
284f4730 JB |
2129 | { |
2130 | Lisp_Object tem0; | |
2131 | count = specpdl_ptr - specpdl; | |
2132 | ||
2133 | record_unwind_protect (Fset_window_configuration, | |
2134 | Fcurrent_window_configuration (Qnil)); | |
2135 | ||
2136 | tem0 = Feval (Vhelp_form); | |
8c18cbfb | 2137 | if (STRINGP (tem0)) |
284f4730 JB |
2138 | internal_with_output_to_temp_buffer ("*Help*", print_help, tem0); |
2139 | ||
2140 | cancel_echoing (); | |
3cb81011 KH |
2141 | do |
2142 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 2143 | while (BUFFERP (c)); |
ff11dfa1 | 2144 | /* Remove the help from the frame */ |
284f4730 | 2145 | unbind_to (count, Qnil); |
410d4de9 | 2146 | |
284f4730 JB |
2147 | redisplay (); |
2148 | if (EQ (c, make_number (040))) | |
2149 | { | |
2150 | cancel_echoing (); | |
3cb81011 KH |
2151 | do |
2152 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 2153 | while (BUFFERP (c)); |
284f4730 JB |
2154 | } |
2155 | } | |
2156 | ||
2157 | return c; | |
2158 | } | |
2159 | ||
ecb7cb34 KH |
2160 | /* Return 1 if should recognize C as "the help character". */ |
2161 | ||
2162 | int | |
2163 | help_char_p (c) | |
2164 | Lisp_Object c; | |
2165 | { | |
2166 | Lisp_Object tail; | |
2167 | ||
2168 | if (EQ (c, Vhelp_char)) | |
2169 | return 1; | |
2170 | for (tail = Vhelp_event_list; CONSP (tail); tail = XCONS (tail)->cdr) | |
2171 | if (EQ (c, XCONS (tail)->car)) | |
2172 | return 1; | |
2173 | return 0; | |
2174 | } | |
2175 | ||
e4fe371d RS |
2176 | /* Record the input event C in various ways. */ |
2177 | ||
2178 | static void | |
2179 | record_char (c) | |
2180 | Lisp_Object c; | |
2181 | { | |
2182 | total_keys++; | |
2183 | XVECTOR (recent_keys)->contents[recent_keys_index] = c; | |
2184 | if (++recent_keys_index >= NUM_RECENT_KEYS) | |
2185 | recent_keys_index = 0; | |
2186 | ||
2187 | /* Write c to the dribble file. If c is a lispy event, write | |
2188 | the event's symbol to the dribble file, in <brackets>. Bleaugh. | |
2189 | If you, dear reader, have a better idea, you've got the source. :-) */ | |
2190 | if (dribble) | |
2191 | { | |
2192 | if (INTEGERP (c)) | |
2193 | { | |
2194 | if (XUINT (c) < 0x100) | |
2195 | putc (XINT (c), dribble); | |
2196 | else | |
6de34814 | 2197 | fprintf (dribble, " 0x%x", (int) XUINT (c)); |
e4fe371d RS |
2198 | } |
2199 | else | |
2200 | { | |
2201 | Lisp_Object dribblee; | |
2202 | ||
2203 | /* If it's a structured event, take the event header. */ | |
2204 | dribblee = EVENT_HEAD (c); | |
2205 | ||
2206 | if (SYMBOLP (dribblee)) | |
2207 | { | |
2208 | putc ('<', dribble); | |
2209 | fwrite (XSYMBOL (dribblee)->name->data, sizeof (char), | |
2210 | XSYMBOL (dribblee)->name->size, | |
2211 | dribble); | |
2212 | putc ('>', dribble); | |
2213 | } | |
2214 | } | |
2215 | ||
2216 | fflush (dribble); | |
2217 | } | |
2218 | ||
2219 | store_kbd_macro_char (c); | |
2220 | ||
2221 | num_nonmacro_input_chars++; | |
2222 | } | |
2223 | ||
284f4730 JB |
2224 | Lisp_Object |
2225 | print_help (object) | |
2226 | Lisp_Object object; | |
2227 | { | |
622de3e9 | 2228 | struct buffer *old = current_buffer; |
284f4730 | 2229 | Fprinc (object, Qnil); |
622de3e9 KH |
2230 | set_buffer_internal (XBUFFER (Vstandard_output)); |
2231 | call0 (intern ("help-mode")); | |
2232 | set_buffer_internal (old); | |
284f4730 JB |
2233 | return Qnil; |
2234 | } | |
2235 | ||
2236 | /* Copy out or in the info on where C-g should throw to. | |
2237 | This is used when running Lisp code from within get_char, | |
2238 | in case get_char is called recursively. | |
2239 | See read_process_output. */ | |
2240 | ||
2241 | save_getcjmp (temp) | |
2242 | jmp_buf temp; | |
2243 | { | |
2244 | bcopy (getcjmp, temp, sizeof getcjmp); | |
2245 | } | |
2246 | ||
2247 | restore_getcjmp (temp) | |
2248 | jmp_buf temp; | |
2249 | { | |
2250 | bcopy (temp, getcjmp, sizeof getcjmp); | |
2251 | } | |
284f4730 | 2252 | \f |
2eb6bfbe RM |
2253 | #ifdef HAVE_MOUSE |
2254 | ||
284f4730 JB |
2255 | /* Restore mouse tracking enablement. See Ftrack_mouse for the only use |
2256 | of this function. */ | |
a9d77f1f | 2257 | |
284f4730 JB |
2258 | static Lisp_Object |
2259 | tracking_off (old_value) | |
2260 | Lisp_Object old_value; | |
2261 | { | |
71edead1 RS |
2262 | do_mouse_tracking = old_value; |
2263 | if (NILP (old_value)) | |
284f4730 | 2264 | { |
284f4730 JB |
2265 | /* Redisplay may have been preempted because there was input |
2266 | available, and it assumes it will be called again after the | |
2267 | input has been processed. If the only input available was | |
2268 | the sort that we have just disabled, then we need to call | |
2269 | redisplay. */ | |
2270 | if (!readable_events ()) | |
2271 | { | |
2272 | redisplay_preserve_echo_area (); | |
2273 | get_input_pending (&input_pending); | |
2274 | } | |
2275 | } | |
2276 | } | |
2277 | ||
2278 | DEFUN ("track-mouse", Ftrack_mouse, Strack_mouse, 0, UNEVALLED, 0, | |
4bb994d1 JB |
2279 | "Evaluate BODY with mouse movement events enabled.\n\ |
2280 | Within a `track-mouse' form, mouse motion generates input events that\n\ | |
2281 | you can read with `read-event'.\n\ | |
2282 | Normally, mouse motion is ignored.") | |
284f4730 JB |
2283 | (args) |
2284 | Lisp_Object args; | |
2285 | { | |
2286 | int count = specpdl_ptr - specpdl; | |
2287 | Lisp_Object val; | |
2288 | ||
a9d77f1f | 2289 | record_unwind_protect (tracking_off, do_mouse_tracking); |
284f4730 | 2290 | |
f3253854 | 2291 | do_mouse_tracking = Qt; |
df0f2ba1 | 2292 | |
284f4730 JB |
2293 | val = Fprogn (args); |
2294 | return unbind_to (count, val); | |
2295 | } | |
2eb6bfbe | 2296 | |
f3253854 KH |
2297 | /* If mouse has moved on some frame, return one of those frames. |
2298 | Return 0 otherwise. */ | |
2299 | ||
2300 | static FRAME_PTR | |
2301 | some_mouse_moved () | |
2302 | { | |
2303 | Lisp_Object tail, frame; | |
2304 | ||
2305 | FOR_EACH_FRAME (tail, frame) | |
2306 | { | |
2307 | if (XFRAME (frame)->mouse_moved) | |
2308 | return XFRAME (frame); | |
2309 | } | |
2310 | ||
2311 | return 0; | |
2312 | } | |
2313 | ||
2eb6bfbe | 2314 | #endif /* HAVE_MOUSE */ |
a612e298 RS |
2315 | \f |
2316 | /* Low level keyboard/mouse input. | |
2317 | kbd_buffer_store_event places events in kbd_buffer, and | |
0646c0dd | 2318 | kbd_buffer_get_event retrieves them. */ |
a612e298 RS |
2319 | |
2320 | /* Return true iff there are any events in the queue that read-char | |
2321 | would return. If this returns false, a read-char would block. */ | |
2322 | static int | |
2323 | readable_events () | |
2324 | { | |
beecf6a1 KH |
2325 | if (kbd_fetch_ptr != kbd_store_ptr) |
2326 | return 1; | |
2327 | #ifdef HAVE_MOUSE | |
f3253854 | 2328 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
2329 | return 1; |
2330 | #endif | |
1e8bd3da | 2331 | if (single_kboard) |
4c52b668 | 2332 | { |
c5fdd383 | 2333 | if (current_kboard->kbd_queue_has_data) |
4c52b668 KH |
2334 | return 1; |
2335 | } | |
2336 | else | |
2337 | { | |
c5fdd383 KH |
2338 | KBOARD *kb; |
2339 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
2340 | if (kb->kbd_queue_has_data) | |
4c52b668 KH |
2341 | return 1; |
2342 | } | |
beecf6a1 | 2343 | return 0; |
a612e298 RS |
2344 | } |
2345 | ||
2346 | /* Set this for debugging, to have a way to get out */ | |
2347 | int stop_character; | |
284f4730 | 2348 | |
c5fdd383 KH |
2349 | #ifdef MULTI_KBOARD |
2350 | static KBOARD * | |
2351 | event_to_kboard (event) | |
5798cf15 KH |
2352 | struct input_event *event; |
2353 | { | |
2354 | Lisp_Object frame; | |
2355 | frame = event->frame_or_window; | |
2356 | if (CONSP (frame)) | |
2357 | frame = XCONS (frame)->car; | |
2358 | else if (WINDOWP (frame)) | |
2359 | frame = WINDOW_FRAME (XWINDOW (frame)); | |
2360 | ||
2361 | /* There are still some events that don't set this field. | |
f5b56972 KH |
2362 | For now, just ignore the problem. |
2363 | Also ignore dead frames here. */ | |
2364 | if (!FRAMEP (frame) || !FRAME_LIVE_P (XFRAME (frame))) | |
5798cf15 KH |
2365 | return 0; |
2366 | else | |
c5fdd383 | 2367 | return FRAME_KBOARD (XFRAME (frame)); |
5798cf15 KH |
2368 | } |
2369 | #endif | |
2370 | ||
284f4730 JB |
2371 | /* Store an event obtained at interrupt level into kbd_buffer, fifo */ |
2372 | ||
2373 | void | |
2374 | kbd_buffer_store_event (event) | |
2375 | register struct input_event *event; | |
2376 | { | |
2377 | if (event->kind == no_event) | |
2378 | abort (); | |
2379 | ||
2380 | if (event->kind == ascii_keystroke) | |
2381 | { | |
e9bf89a0 | 2382 | register int c = event->code & 0377; |
284f4730 | 2383 | |
faf5e407 JB |
2384 | if (event->modifiers & ctrl_modifier) |
2385 | c = make_ctrl_char (c); | |
2386 | ||
9fd7d808 RS |
2387 | c |= (event->modifiers |
2388 | & (meta_modifier | alt_modifier | |
2389 | | hyper_modifier | super_modifier)); | |
2390 | ||
86e5706b | 2391 | if (c == quit_char) |
284f4730 | 2392 | { |
3e51c7b7 | 2393 | extern SIGTYPE interrupt_signal (); |
c5fdd383 KH |
2394 | #ifdef MULTI_KBOARD |
2395 | KBOARD *kb; | |
5798cf15 KH |
2396 | struct input_event *sp; |
2397 | ||
1e8bd3da | 2398 | if (single_kboard |
c5fdd383 KH |
2399 | && (kb = FRAME_KBOARD (XFRAME (event->frame_or_window)), |
2400 | kb != current_kboard)) | |
5798cf15 | 2401 | { |
c5fdd383 | 2402 | kb->kbd_queue |
5798cf15 KH |
2403 | = Fcons (make_lispy_switch_frame (event->frame_or_window), |
2404 | Fcons (make_number (c), Qnil)); | |
c5fdd383 | 2405 | kb->kbd_queue_has_data = 1; |
5798cf15 KH |
2406 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) |
2407 | { | |
2408 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
2409 | sp = kbd_buffer; | |
2410 | ||
c5fdd383 | 2411 | if (event_to_kboard (sp) == kb) |
5798cf15 KH |
2412 | { |
2413 | sp->kind = no_event; | |
2414 | sp->frame_or_window = Qnil; | |
2415 | } | |
2416 | } | |
2417 | return; | |
2418 | } | |
2419 | #endif | |
3e51c7b7 | 2420 | |
07d2b8de | 2421 | #ifdef MULTI_FRAME |
284f4730 | 2422 | /* If this results in a quit_char being returned to Emacs as |
3c370943 | 2423 | input, set Vlast_event_frame properly. If this doesn't |
284f4730 | 2424 | get returned to Emacs as an event, the next event read |
ff11dfa1 | 2425 | will set Vlast_event_frame again, so this is safe to do. */ |
4bb994d1 | 2426 | { |
9b8eb840 | 2427 | Lisp_Object focus; |
4bb994d1 | 2428 | |
9b8eb840 | 2429 | focus = FRAME_FOCUS_FRAME (XFRAME (event->frame_or_window)); |
4bb994d1 | 2430 | if (NILP (focus)) |
beecf6a1 | 2431 | focus = event->frame_or_window; |
4c52b668 KH |
2432 | internal_last_event_frame = focus; |
2433 | Vlast_event_frame = focus; | |
4bb994d1 | 2434 | } |
07d2b8de | 2435 | #endif |
3e51c7b7 | 2436 | |
ffd56f97 | 2437 | last_event_timestamp = event->timestamp; |
284f4730 JB |
2438 | interrupt_signal (); |
2439 | return; | |
2440 | } | |
2441 | ||
2442 | if (c && c == stop_character) | |
2443 | { | |
2444 | sys_suspend (); | |
2445 | return; | |
2446 | } | |
284f4730 | 2447 | } |
3fe8e9a2 RS |
2448 | /* Don't insert two buffer_switch_event's in a row. |
2449 | Just ignore the second one. */ | |
2450 | else if (event->kind == buffer_switch_event | |
2451 | && kbd_fetch_ptr != kbd_store_ptr | |
2452 | && kbd_store_ptr->kind == buffer_switch_event) | |
2453 | return; | |
284f4730 | 2454 | |
beecf6a1 KH |
2455 | if (kbd_store_ptr - kbd_buffer == KBD_BUFFER_SIZE) |
2456 | kbd_store_ptr = kbd_buffer; | |
284f4730 JB |
2457 | |
2458 | /* Don't let the very last slot in the buffer become full, | |
2459 | since that would make the two pointers equal, | |
2460 | and that is indistinguishable from an empty buffer. | |
2461 | Discard the event if it would fill the last slot. */ | |
beecf6a1 | 2462 | if (kbd_fetch_ptr - 1 != kbd_store_ptr) |
284f4730 | 2463 | { |
beecf6a1 | 2464 | volatile struct input_event *sp = kbd_store_ptr; |
612b78ef | 2465 | sp->kind = event->kind; |
27203ead RS |
2466 | if (event->kind == selection_request_event) |
2467 | { | |
2468 | /* We must not use the ordinary copying code for this case, | |
2469 | since `part' is an enum and copying it might not copy enough | |
2470 | in this case. */ | |
612b78ef | 2471 | bcopy (event, (char *) sp, sizeof (*event)); |
27203ead RS |
2472 | } |
2473 | else | |
2474 | { | |
612b78ef KH |
2475 | sp->code = event->code; |
2476 | sp->part = event->part; | |
2477 | sp->frame_or_window = event->frame_or_window; | |
2478 | sp->modifiers = event->modifiers; | |
2479 | sp->x = event->x; | |
2480 | sp->y = event->y; | |
2481 | sp->timestamp = event->timestamp; | |
27203ead | 2482 | } |
beecf6a1 KH |
2483 | (XVECTOR (kbd_buffer_frame_or_window)->contents[kbd_store_ptr |
2484 | - kbd_buffer] | |
7b4aedb9 | 2485 | = event->frame_or_window); |
284f4730 | 2486 | |
beecf6a1 | 2487 | kbd_store_ptr++; |
284f4730 JB |
2488 | } |
2489 | } | |
a612e298 RS |
2490 | \f |
2491 | /* Read one event from the event buffer, waiting if necessary. | |
2492 | The value is a Lisp object representing the event. | |
2493 | The value is nil for an event that should be ignored, | |
2494 | or that was handled here. | |
2495 | We always read and discard one event. */ | |
284f4730 JB |
2496 | |
2497 | static Lisp_Object | |
83d68044 | 2498 | kbd_buffer_get_event (kbp, used_mouse_menu) |
410d4de9 | 2499 | KBOARD **kbp; |
83d68044 | 2500 | int *used_mouse_menu; |
284f4730 JB |
2501 | { |
2502 | register int c; | |
2503 | Lisp_Object obj; | |
2504 | ||
2505 | if (noninteractive) | |
2506 | { | |
2507 | c = getchar (); | |
18cd2eeb | 2508 | XSETINT (obj, c); |
f5b56972 | 2509 | *kbp = current_kboard; |
284f4730 JB |
2510 | return obj; |
2511 | } | |
2512 | ||
2513 | /* Wait until there is input available. */ | |
2514 | for (;;) | |
2515 | { | |
beecf6a1 KH |
2516 | if (kbd_fetch_ptr != kbd_store_ptr) |
2517 | break; | |
2518 | #ifdef HAVE_MOUSE | |
f3253854 | 2519 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 2520 | break; |
beecf6a1 | 2521 | #endif |
284f4730 JB |
2522 | |
2523 | /* If the quit flag is set, then read_char will return | |
2524 | quit_char, so that counts as "available input." */ | |
2525 | if (!NILP (Vquit_flag)) | |
2526 | quit_throw_to_read_char (); | |
2527 | ||
2528 | /* One way or another, wait until input is available; then, if | |
2529 | interrupt handlers have not read it, read it now. */ | |
2530 | ||
2531 | #ifdef OLDVMS | |
2532 | wait_for_kbd_input (); | |
2533 | #else | |
2534 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
2535 | #ifdef SIGIO | |
2536 | gobble_input (0); | |
2537 | #endif /* SIGIO */ | |
beecf6a1 KH |
2538 | if (kbd_fetch_ptr != kbd_store_ptr) |
2539 | break; | |
2540 | #ifdef HAVE_MOUSE | |
f3253854 | 2541 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
2542 | break; |
2543 | #endif | |
2544 | { | |
2545 | Lisp_Object minus_one; | |
f76475ad | 2546 | |
beecf6a1 KH |
2547 | XSETINT (minus_one, -1); |
2548 | wait_reading_process_input (0, 0, minus_one, 1); | |
284f4730 | 2549 | |
beecf6a1 KH |
2550 | if (!interrupt_input && kbd_fetch_ptr == kbd_store_ptr) |
2551 | /* Pass 1 for EXPECT since we just waited to have input. */ | |
2552 | read_avail_input (1); | |
2553 | } | |
284f4730 JB |
2554 | #endif /* not VMS */ |
2555 | } | |
2556 | ||
2557 | /* At this point, we know that there is a readable event available | |
2558 | somewhere. If the event queue is empty, then there must be a | |
2559 | mouse movement enabled and available. */ | |
beecf6a1 | 2560 | if (kbd_fetch_ptr != kbd_store_ptr) |
284f4730 | 2561 | { |
cd21b839 | 2562 | struct input_event *event; |
3e51c7b7 | 2563 | |
beecf6a1 KH |
2564 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
2565 | ? kbd_fetch_ptr | |
2566 | : kbd_buffer); | |
3e51c7b7 | 2567 | |
cd21b839 | 2568 | last_event_timestamp = event->timestamp; |
cd21b839 | 2569 | |
c5fdd383 KH |
2570 | #ifdef MULTI_KBOARD |
2571 | *kbp = event_to_kboard (event); | |
2572 | if (*kbp == 0) | |
2573 | *kbp = current_kboard; /* Better than returning null ptr? */ | |
5798cf15 | 2574 | #else |
c5fdd383 | 2575 | *kbp = &the_only_kboard; |
5798cf15 | 2576 | #endif |
beecf6a1 | 2577 | |
4bb994d1 JB |
2578 | obj = Qnil; |
2579 | ||
48e416d4 | 2580 | /* These two kinds of events get special handling |
a612e298 RS |
2581 | and don't actually appear to the command loop. |
2582 | We return nil for them. */ | |
48e416d4 RS |
2583 | if (event->kind == selection_request_event) |
2584 | { | |
598a9fa7 | 2585 | #ifdef HAVE_X11 |
1e8bd3da RS |
2586 | struct input_event copy; |
2587 | ||
4581e928 RS |
2588 | /* Remove it from the buffer before processing it, |
2589 | since otherwise swallow_events will see it | |
2590 | and process it again. */ | |
1e8bd3da | 2591 | copy = *event; |
beecf6a1 | 2592 | kbd_fetch_ptr = event + 1; |
e0301c07 | 2593 | input_pending = readable_events (); |
4581e928 | 2594 | x_handle_selection_request (©); |
598a9fa7 JB |
2595 | #else |
2596 | /* We're getting selection request events, but we don't have | |
2597 | a window system. */ | |
2598 | abort (); | |
2599 | #endif | |
48e416d4 RS |
2600 | } |
2601 | ||
1e12dd87 | 2602 | else if (event->kind == selection_clear_event) |
48e416d4 | 2603 | { |
598a9fa7 | 2604 | #ifdef HAVE_X11 |
e0301c07 RS |
2605 | struct input_event copy; |
2606 | ||
2607 | /* Remove it from the buffer before processing it. */ | |
2608 | copy = *event; | |
beecf6a1 | 2609 | kbd_fetch_ptr = event + 1; |
e0301c07 | 2610 | input_pending = readable_events (); |
90c2bb0c | 2611 | x_handle_selection_clear (©); |
598a9fa7 JB |
2612 | #else |
2613 | /* We're getting selection request events, but we don't have | |
2614 | a window system. */ | |
2615 | abort (); | |
2616 | #endif | |
48e416d4 | 2617 | } |
e98a93eb | 2618 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) |
990acea3 RS |
2619 | else if (event->kind == delete_window_event) |
2620 | { | |
bbdc2092 RS |
2621 | /* Make an event (delete-frame (FRAME)). */ |
2622 | obj = Fcons (event->frame_or_window, Qnil); | |
af17bd2b | 2623 | obj = Fcons (Qdelete_frame, Fcons (obj, Qnil)); |
beecf6a1 | 2624 | kbd_fetch_ptr = event + 1; |
af17bd2b KH |
2625 | } |
2626 | else if (event->kind == iconify_event) | |
2627 | { | |
2628 | /* Make an event (iconify-frame (FRAME)). */ | |
2629 | obj = Fcons (event->frame_or_window, Qnil); | |
2630 | obj = Fcons (Qiconify_frame, Fcons (obj, Qnil)); | |
beecf6a1 | 2631 | kbd_fetch_ptr = event + 1; |
af17bd2b KH |
2632 | } |
2633 | else if (event->kind == deiconify_event) | |
2634 | { | |
2635 | /* Make an event (make-frame-visible (FRAME)). */ | |
2636 | obj = Fcons (event->frame_or_window, Qnil); | |
2637 | obj = Fcons (Qmake_frame_visible, Fcons (obj, Qnil)); | |
beecf6a1 | 2638 | kbd_fetch_ptr = event + 1; |
990acea3 RS |
2639 | } |
2640 | #endif | |
a8015ab5 KH |
2641 | else if (event->kind == buffer_switch_event) |
2642 | { | |
2643 | /* The value doesn't matter here; only the type is tested. */ | |
18cd2eeb | 2644 | XSETBUFFER (obj, current_buffer); |
beecf6a1 | 2645 | kbd_fetch_ptr = event + 1; |
a8015ab5 | 2646 | } |
099787c1 RS |
2647 | #ifdef USE_X_TOOLKIT |
2648 | else if (event->kind == menu_bar_activate_event) | |
2649 | { | |
2650 | kbd_fetch_ptr = event + 1; | |
e0301c07 | 2651 | input_pending = readable_events (); |
099787c1 RS |
2652 | x_activate_menubar (XFRAME (event->frame_or_window)); |
2653 | } | |
2654 | #endif | |
a612e298 | 2655 | /* Just discard these, by returning nil. |
c5fdd383 | 2656 | With MULTI_KBOARD, these events are used as placeholders |
5798cf15 KH |
2657 | when we need to randomly delete events from the queue. |
2658 | (They shouldn't otherwise be found in the buffer, | |
2659 | but on some machines it appears they do show up | |
c5fdd383 | 2660 | even without MULTI_KBOARD.) */ |
a612e298 | 2661 | else if (event->kind == no_event) |
beecf6a1 | 2662 | kbd_fetch_ptr = event + 1; |
48e416d4 | 2663 | |
4bb994d1 JB |
2664 | /* If this event is on a different frame, return a switch-frame this |
2665 | time, and leave the event in the queue for next time. */ | |
1e12dd87 RS |
2666 | else |
2667 | { | |
a6d53864 | 2668 | #ifdef MULTI_FRAME |
9b8eb840 | 2669 | Lisp_Object frame; |
1e12dd87 | 2670 | Lisp_Object focus; |
7b4aedb9 | 2671 | |
9b8eb840 | 2672 | frame = event->frame_or_window; |
2470a66f KH |
2673 | if (CONSP (frame)) |
2674 | frame = XCONS (frame)->car; | |
2675 | else if (WINDOWP (frame)) | |
1e12dd87 | 2676 | frame = WINDOW_FRAME (XWINDOW (frame)); |
4bb994d1 | 2677 | |
1e12dd87 RS |
2678 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); |
2679 | if (! NILP (focus)) | |
2680 | frame = focus; | |
07d2b8de | 2681 | |
4c52b668 | 2682 | if (! EQ (frame, internal_last_event_frame) |
1e12dd87 RS |
2683 | && XFRAME (frame) != selected_frame) |
2684 | obj = make_lispy_switch_frame (frame); | |
4c52b668 | 2685 | internal_last_event_frame = frame; |
a6d53864 | 2686 | #endif /* MULTI_FRAME */ |
4bb994d1 | 2687 | |
1e12dd87 RS |
2688 | /* If we didn't decide to make a switch-frame event, go ahead |
2689 | and build a real event from the queue entry. */ | |
cd21b839 | 2690 | |
1e12dd87 RS |
2691 | if (NILP (obj)) |
2692 | { | |
2693 | obj = make_lispy_event (event); | |
e98a93eb | 2694 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) |
83d68044 KH |
2695 | /* If this was a menu selection, then set the flag to inhibit |
2696 | writing to last_nonmenu_event. Don't do this if the event | |
2697 | we're returning is (menu-bar), though; that indicates the | |
2698 | beginning of the menu sequence, and we might as well leave | |
2699 | that as the `event with parameters' for this selection. */ | |
2700 | if (event->kind == menu_bar_event | |
2701 | && !(CONSP (obj) && EQ (XCONS (obj)->car, Qmenu_bar)) | |
2702 | && used_mouse_menu) | |
2703 | *used_mouse_menu = 1; | |
2704 | #endif | |
1e12dd87 RS |
2705 | |
2706 | /* Wipe out this event, to catch bugs. */ | |
2707 | event->kind = no_event; | |
beecf6a1 | 2708 | XVECTOR (kbd_buffer_frame_or_window)->contents[event - kbd_buffer] = Qnil; |
1e12dd87 | 2709 | |
beecf6a1 | 2710 | kbd_fetch_ptr = event + 1; |
1e12dd87 | 2711 | } |
4bb994d1 | 2712 | } |
284f4730 | 2713 | } |
2eb6bfbe | 2714 | #ifdef HAVE_MOUSE |
a612e298 | 2715 | /* Try generating a mouse motion event. */ |
f3253854 | 2716 | else if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 2717 | { |
f3253854 | 2718 | FRAME_PTR f = some_mouse_moved (); |
7b4aedb9 | 2719 | Lisp_Object bar_window; |
3c370943 | 2720 | enum scroll_bar_part part; |
e5d77022 JB |
2721 | Lisp_Object x, y; |
2722 | unsigned long time; | |
284f4730 | 2723 | |
c5fdd383 | 2724 | *kbp = current_kboard; |
e177ac3a RS |
2725 | /* Note that this uses F to determine which display to look at. |
2726 | If there is no valid info, it does not store anything | |
2727 | so x remains nil. */ | |
2728 | x = Qnil; | |
dd26ab75 | 2729 | (*mouse_position_hook) (&f, 0, &bar_window, &part, &x, &y, &time); |
4bb994d1 JB |
2730 | |
2731 | obj = Qnil; | |
284f4730 | 2732 | |
07d2b8de | 2733 | #ifdef MULTI_FRAME |
4bb994d1 JB |
2734 | /* Decide if we should generate a switch-frame event. Don't |
2735 | generate switch-frame events for motion outside of all Emacs | |
2736 | frames. */ | |
e177ac3a | 2737 | if (!NILP (x) && f) |
cd21b839 | 2738 | { |
9b8eb840 | 2739 | Lisp_Object frame; |
4bb994d1 | 2740 | |
9b8eb840 | 2741 | frame = FRAME_FOCUS_FRAME (f); |
4bb994d1 | 2742 | if (NILP (frame)) |
18cd2eeb | 2743 | XSETFRAME (frame, f); |
4bb994d1 | 2744 | |
4c52b668 | 2745 | if (! EQ (frame, internal_last_event_frame) |
80645119 | 2746 | && XFRAME (frame) != selected_frame) |
764cb3f9 | 2747 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 2748 | internal_last_event_frame = frame; |
cd21b839 | 2749 | } |
68553292 | 2750 | #endif |
4bb994d1 | 2751 | |
df0f2ba1 | 2752 | /* If we didn't decide to make a switch-frame event, go ahead and |
4bb994d1 | 2753 | return a mouse-motion event. */ |
e177ac3a | 2754 | if (!NILP (x) && NILP (obj)) |
7b4aedb9 | 2755 | obj = make_lispy_movement (f, bar_window, part, x, y, time); |
6cbff1cb | 2756 | } |
2eb6bfbe | 2757 | #endif /* HAVE_MOUSE */ |
284f4730 JB |
2758 | else |
2759 | /* We were promised by the above while loop that there was | |
2760 | something for us to read! */ | |
2761 | abort (); | |
2762 | ||
2763 | input_pending = readable_events (); | |
2764 | ||
3c370943 | 2765 | #ifdef MULTI_FRAME |
4c52b668 | 2766 | Vlast_event_frame = internal_last_event_frame; |
3c370943 JB |
2767 | #endif |
2768 | ||
284f4730 JB |
2769 | return (obj); |
2770 | } | |
a612e298 RS |
2771 | \f |
2772 | /* Process any events that are not user-visible, | |
2773 | then return, without reading any user-visible events. */ | |
3a3b9632 RS |
2774 | |
2775 | void | |
2776 | swallow_events () | |
2777 | { | |
beecf6a1 | 2778 | while (kbd_fetch_ptr != kbd_store_ptr) |
3a3b9632 RS |
2779 | { |
2780 | struct input_event *event; | |
2781 | ||
beecf6a1 KH |
2782 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
2783 | ? kbd_fetch_ptr | |
2784 | : kbd_buffer); | |
3a3b9632 RS |
2785 | |
2786 | last_event_timestamp = event->timestamp; | |
2787 | ||
2788 | /* These two kinds of events get special handling | |
2789 | and don't actually appear to the command loop. */ | |
2790 | if (event->kind == selection_request_event) | |
2791 | { | |
2792 | #ifdef HAVE_X11 | |
4581e928 | 2793 | struct input_event copy; |
e0301c07 RS |
2794 | |
2795 | /* Remove it from the buffer before processing it, | |
2796 | since otherwise swallow_events called recursively could see it | |
2797 | and process it again. */ | |
4581e928 | 2798 | copy = *event; |
beecf6a1 | 2799 | kbd_fetch_ptr = event + 1; |
e0301c07 | 2800 | input_pending = readable_events (); |
4581e928 | 2801 | x_handle_selection_request (©); |
3a3b9632 RS |
2802 | #else |
2803 | /* We're getting selection request events, but we don't have | |
2804 | a window system. */ | |
2805 | abort (); | |
2806 | #endif | |
2807 | } | |
2808 | ||
2809 | else if (event->kind == selection_clear_event) | |
2810 | { | |
2811 | #ifdef HAVE_X11 | |
e0301c07 RS |
2812 | struct input_event copy; |
2813 | ||
2814 | /* Remove it from the buffer before processing it, */ | |
2815 | copy = *event; | |
2816 | ||
beecf6a1 | 2817 | kbd_fetch_ptr = event + 1; |
e0301c07 | 2818 | input_pending = readable_events (); |
90c2bb0c | 2819 | x_handle_selection_clear (©); |
3a3b9632 RS |
2820 | #else |
2821 | /* We're getting selection request events, but we don't have | |
2822 | a window system. */ | |
2823 | abort (); | |
2824 | #endif | |
2825 | } | |
2826 | else | |
2827 | break; | |
2828 | } | |
2829 | ||
2830 | get_input_pending (&input_pending); | |
2831 | } | |
a612e298 | 2832 | \f |
284f4730 | 2833 | /* Caches for modify_event_symbol. */ |
e9bf89a0 | 2834 | static Lisp_Object accent_key_syms; |
284f4730 JB |
2835 | static Lisp_Object func_key_syms; |
2836 | static Lisp_Object mouse_syms; | |
2837 | ||
e9bf89a0 RS |
2838 | /* This is a list of keysym codes for special "accent" characters. |
2839 | It parallels lispy_accent_keys. */ | |
2840 | ||
2841 | static int lispy_accent_codes[] = | |
2842 | { | |
79a7046c | 2843 | #ifdef XK_dead_circumflex |
e9bf89a0 | 2844 | XK_dead_circumflex, |
79a7046c RS |
2845 | #else |
2846 | 0, | |
2847 | #endif | |
2848 | #ifdef XK_dead_grave | |
e9bf89a0 | 2849 | XK_dead_grave, |
79a7046c RS |
2850 | #else |
2851 | 0, | |
2852 | #endif | |
2853 | #ifdef XK_dead_tilde | |
e9bf89a0 | 2854 | XK_dead_tilde, |
79a7046c RS |
2855 | #else |
2856 | 0, | |
2857 | #endif | |
2858 | #ifdef XK_dead_diaeresis | |
e9bf89a0 | 2859 | XK_dead_diaeresis, |
79a7046c RS |
2860 | #else |
2861 | 0, | |
2862 | #endif | |
2863 | #ifdef XK_dead_macron | |
e9bf89a0 | 2864 | XK_dead_macron, |
79a7046c RS |
2865 | #else |
2866 | 0, | |
2867 | #endif | |
2868 | #ifdef XK_dead_degree | |
e9bf89a0 | 2869 | XK_dead_degree, |
79a7046c RS |
2870 | #else |
2871 | 0, | |
2872 | #endif | |
2873 | #ifdef XK_dead_acute | |
e9bf89a0 | 2874 | XK_dead_acute, |
79a7046c RS |
2875 | #else |
2876 | 0, | |
2877 | #endif | |
2878 | #ifdef XK_dead_cedilla | |
e9bf89a0 | 2879 | XK_dead_cedilla, |
79a7046c RS |
2880 | #else |
2881 | 0, | |
2882 | #endif | |
2883 | #ifdef XK_dead_breve | |
e9bf89a0 | 2884 | XK_dead_breve, |
79a7046c RS |
2885 | #else |
2886 | 0, | |
2887 | #endif | |
2888 | #ifdef XK_dead_ogonek | |
e9bf89a0 | 2889 | XK_dead_ogonek, |
79a7046c RS |
2890 | #else |
2891 | 0, | |
2892 | #endif | |
2893 | #ifdef XK_dead_caron | |
e9bf89a0 | 2894 | XK_dead_caron, |
79a7046c RS |
2895 | #else |
2896 | 0, | |
2897 | #endif | |
2898 | #ifdef XK_dead_doubleacute | |
e9bf89a0 | 2899 | XK_dead_doubleacute, |
79a7046c RS |
2900 | #else |
2901 | 0, | |
2902 | #endif | |
2903 | #ifdef XK_dead_abovedot | |
e9bf89a0 | 2904 | XK_dead_abovedot, |
79a7046c RS |
2905 | #else |
2906 | 0, | |
2907 | #endif | |
e9bf89a0 RS |
2908 | }; |
2909 | ||
2910 | /* This is a list of Lisp names for special "accent" characters. | |
2911 | It parallels lispy_accent_codes. */ | |
2912 | ||
2913 | static char *lispy_accent_keys[] = | |
2914 | { | |
2915 | "dead-circumflex", | |
2916 | "dead-grave", | |
2917 | "dead-tilde", | |
2918 | "dead-diaeresis", | |
2919 | "dead-macron", | |
2920 | "dead-degree", | |
2921 | "dead-acute", | |
2922 | "dead-cedilla", | |
2923 | "dead-breve", | |
2924 | "dead-ogonek", | |
2925 | "dead-caron", | |
2926 | "dead-doubleacute", | |
2927 | "dead-abovedot", | |
2928 | }; | |
2929 | ||
e98a93eb GV |
2930 | #ifdef HAVE_NTGUI |
2931 | #define FUNCTION_KEY_OFFSET 0x0 | |
2932 | ||
2933 | char *lispy_function_keys[] = | |
2934 | { | |
2935 | 0, /* 0 */ | |
2936 | ||
2937 | 0, /* VK_LBUTTON 0x01 */ | |
2938 | 0, /* VK_RBUTTON 0x02 */ | |
2939 | "cancel", /* VK_CANCEL 0x03 */ | |
2940 | 0, /* VK_MBUTTON 0x04 */ | |
2941 | ||
2942 | 0, 0, 0, /* 0x05 .. 0x07 */ | |
2943 | ||
2944 | "backspace", /* VK_BACK 0x08 */ | |
2945 | "tab", /* VK_TAB 0x09 */ | |
2946 | ||
2947 | 0, 0, /* 0x0A .. 0x0B */ | |
2948 | ||
2949 | "clear", /* VK_CLEAR 0x0C */ | |
2950 | "return", /* VK_RETURN 0x0D */ | |
2951 | ||
2952 | 0, 0, /* 0x0E .. 0x0F */ | |
2953 | ||
2954 | "shift", /* VK_SHIFT 0x10 */ | |
2955 | "control", /* VK_CONTROL 0x11 */ | |
2956 | "menu", /* VK_MENU 0x12 */ | |
2957 | "pause", /* VK_PAUSE 0x13 */ | |
2958 | "capital", /* VK_CAPITAL 0x14 */ | |
2959 | ||
2960 | 0, 0, 0, 0, 0, 0, /* 0x15 .. 0x1A */ | |
2961 | ||
2962 | 0, /* VK_ESCAPE 0x1B */ | |
2963 | ||
2964 | 0, 0, 0, 0, /* 0x1C .. 0x1F */ | |
2965 | ||
2966 | 0, /* VK_SPACE 0x20 */ | |
2967 | "prior", /* VK_PRIOR 0x21 */ | |
2968 | "next", /* VK_NEXT 0x22 */ | |
2969 | "end", /* VK_END 0x23 */ | |
2970 | "home", /* VK_HOME 0x24 */ | |
2971 | "left", /* VK_LEFT 0x25 */ | |
2972 | "up", /* VK_UP 0x26 */ | |
2973 | "right", /* VK_RIGHT 0x27 */ | |
2974 | "down", /* VK_DOWN 0x28 */ | |
2975 | "select", /* VK_SELECT 0x29 */ | |
2976 | "print", /* VK_PRINT 0x2A */ | |
2977 | "execute", /* VK_EXECUTE 0x2B */ | |
2978 | "snapshot", /* VK_SNAPSHOT 0x2C */ | |
2979 | "insert", /* VK_INSERT 0x2D */ | |
2980 | "delete", /* VK_DELETE 0x2E */ | |
2981 | "help", /* VK_HELP 0x2F */ | |
2982 | ||
2983 | /* VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39) */ | |
2984 | ||
2985 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
2986 | ||
2987 | 0, 0, 0, 0, 0, 0, 0, /* 0x3A .. 0x40 */ | |
2988 | ||
2989 | /* VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A) */ | |
2990 | ||
2991 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
2992 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
2993 | 0, 0, 0, 0, 0, 0, 0, 0, | |
2994 | ||
2995 | 0, /* VK_LWIN 0x5B */ | |
2996 | 0, /* VK_RWIN 0x5C */ | |
2997 | 0, /* VK_APPS 0x5D */ | |
2998 | ||
2999 | 0, 0, /* 0x5E .. 0x5F */ | |
3000 | ||
3001 | "kp-0", /* VK_NUMPAD0 0x60 */ | |
3002 | "kp-1", /* VK_NUMPAD1 0x61 */ | |
3003 | "kp-2", /* VK_NUMPAD2 0x62 */ | |
3004 | "kp-3", /* VK_NUMPAD3 0x63 */ | |
3005 | "kp-4", /* VK_NUMPAD4 0x64 */ | |
3006 | "kp-5", /* VK_NUMPAD5 0x65 */ | |
3007 | "kp-6", /* VK_NUMPAD6 0x66 */ | |
3008 | "kp-7", /* VK_NUMPAD7 0x67 */ | |
3009 | "kp-8", /* VK_NUMPAD8 0x68 */ | |
3010 | "kp-9", /* VK_NUMPAD9 0x69 */ | |
3011 | "kp-multiply", /* VK_MULTIPLY 0x6A */ | |
3012 | "kp-add", /* VK_ADD 0x6B */ | |
3013 | "kp-separator", /* VK_SEPARATOR 0x6C */ | |
3014 | "kp-subtract", /* VK_SUBTRACT 0x6D */ | |
3015 | "kp-decimal", /* VK_DECIMAL 0x6E */ | |
3016 | "kp-divide", /* VK_DIVIDE 0x6F */ | |
3017 | "f1", /* VK_F1 0x70 */ | |
3018 | "f2", /* VK_F2 0x71 */ | |
3019 | "f3", /* VK_F3 0x72 */ | |
3020 | "f4", /* VK_F4 0x73 */ | |
3021 | "f5", /* VK_F5 0x74 */ | |
3022 | "f6", /* VK_F6 0x75 */ | |
3023 | "f7", /* VK_F7 0x76 */ | |
3024 | "f8", /* VK_F8 0x77 */ | |
3025 | "f9", /* VK_F9 0x78 */ | |
3026 | "f10", /* VK_F10 0x79 */ | |
3027 | "f11", /* VK_F11 0x7A */ | |
3028 | "f12", /* VK_F12 0x7B */ | |
3029 | "f13", /* VK_F13 0x7C */ | |
3030 | "f14", /* VK_F14 0x7D */ | |
3031 | "f15", /* VK_F15 0x7E */ | |
3032 | "f16", /* VK_F16 0x7F */ | |
3033 | "f17", /* VK_F17 0x80 */ | |
3034 | "f18", /* VK_F18 0x81 */ | |
3035 | "f19", /* VK_F19 0x82 */ | |
3036 | "f20", /* VK_F20 0x83 */ | |
3037 | "f21", /* VK_F21 0x84 */ | |
3038 | "f22", /* VK_F22 0x85 */ | |
3039 | "f23", /* VK_F23 0x86 */ | |
3040 | "f24", /* VK_F24 0x87 */ | |
3041 | ||
3042 | 0, 0, 0, 0, /* 0x88 .. 0x8B */ | |
3043 | 0, 0, 0, 0, /* 0x8C .. 0x8F */ | |
3044 | ||
3045 | "kp-numlock", /* VK_NUMLOCK 0x90 */ | |
3046 | "scroll", /* VK_SCROLL 0x91 */ | |
3047 | ||
3048 | 0, 0, 0, 0, 0, /* 0x92 .. 0x96 */ | |
3049 | 0, 0, 0, 0, 0, /* 0x97 .. 0x9B */ | |
3050 | 0, 0, 0, 0, /* 0x9C .. 0x9F */ | |
3051 | ||
3052 | /* | |
3053 | * VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys. | |
3054 | * Used only as parameters to GetAsyncKeyState() and GetKeyState(). | |
3055 | * No other API or message will distinguish left and right keys this way. | |
3056 | */ | |
3057 | /* 0xA0 .. 0xEF */ | |
3058 | ||
3059 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3060 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3061 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3062 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3063 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3064 | ||
3065 | /* 0xF0 .. 0xF5 */ | |
3066 | ||
3067 | 0, 0, 0, 0, 0, 0, | |
3068 | ||
3069 | "attn", /* VK_ATTN 0xF6 */ | |
3070 | "crsel", /* VK_CRSEL 0xF7 */ | |
3071 | "exsel", /* VK_EXSEL 0xF8 */ | |
3072 | "ereof", /* VK_EREOF 0xF9 */ | |
3073 | "play", /* VK_PLAY 0xFA */ | |
3074 | "zoom", /* VK_ZOOM 0xFB */ | |
3075 | "noname", /* VK_NONAME 0xFC */ | |
3076 | "pa1", /* VK_PA1 0xFD */ | |
3077 | "oem_clear", /* VK_OEM_CLEAR 0xFE */ | |
3078 | }; | |
3079 | ||
3080 | #else | |
3081 | ||
3082 | #define FUNCTION_KEY_OFFSET 0xff00 | |
3083 | ||
284f4730 JB |
3084 | /* You'll notice that this table is arranged to be conveniently |
3085 | indexed by X Windows keysym values. */ | |
3086 | static char *lispy_function_keys[] = | |
3087 | { | |
3088 | /* X Keysym value */ | |
3089 | ||
80e4aa30 | 3090 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff00 */ |
86e5706b RS |
3091 | "backspace", |
3092 | "tab", | |
3093 | "linefeed", | |
3094 | "clear", | |
3095 | 0, | |
3096 | "return", | |
3097 | 0, 0, | |
3098 | 0, 0, 0, /* 0xff10 */ | |
3099 | "pause", | |
3100 | 0, 0, 0, 0, 0, 0, 0, | |
3101 | "escape", | |
3102 | 0, 0, 0, 0, | |
3103 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff20...2f */ | |
3104 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff30...3f */ | |
3105 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff40...4f */ | |
3106 | ||
284f4730 JB |
3107 | "home", /* 0xff50 */ /* IsCursorKey */ |
3108 | "left", | |
3109 | "up", | |
3110 | "right", | |
3111 | "down", | |
3112 | "prior", | |
3113 | "next", | |
3114 | "end", | |
3115 | "begin", | |
3116 | 0, /* 0xff59 */ | |
3117 | 0, 0, 0, 0, 0, 0, | |
3118 | "select", /* 0xff60 */ /* IsMiscFunctionKey */ | |
3119 | "print", | |
3120 | "execute", | |
3121 | "insert", | |
3122 | 0, /* 0xff64 */ | |
3123 | "undo", | |
3124 | "redo", | |
3125 | "menu", | |
3126 | "find", | |
3127 | "cancel", | |
3128 | "help", | |
3129 | "break", /* 0xff6b */ | |
3130 | ||
9fdbfdf8 | 3131 | 0, 0, 0, 0, 0, 0, 0, 0, "backtab", 0, |
284f4730 | 3132 | 0, /* 0xff76 */ |
36ae397e | 3133 | 0, 0, 0, 0, 0, 0, 0, 0, "kp-numlock", /* 0xff7f */ |
284f4730 JB |
3134 | "kp-space", /* 0xff80 */ /* IsKeypadKey */ |
3135 | 0, 0, 0, 0, 0, 0, 0, 0, | |
3136 | "kp-tab", /* 0xff89 */ | |
3137 | 0, 0, 0, | |
3138 | "kp-enter", /* 0xff8d */ | |
3139 | 0, 0, 0, | |
3140 | "kp-f1", /* 0xff91 */ | |
3141 | "kp-f2", | |
3142 | "kp-f3", | |
3143 | "kp-f4", | |
872157e7 RS |
3144 | "kp-home", /* 0xff95 */ |
3145 | "kp-left", | |
3146 | "kp-up", | |
3147 | "kp-right", | |
3148 | "kp-down", | |
3149 | "kp-prior", /* kp-page-up */ | |
3150 | "kp-next", /* kp-page-down */ | |
3151 | "kp-end", | |
3152 | "kp-begin", | |
3153 | "kp-insert", | |
3154 | "kp-delete", | |
3155 | 0, /* 0xffa0 */ | |
3156 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
3157 | "kp-multiply", /* 0xffaa */ |
3158 | "kp-add", | |
3159 | "kp-separator", | |
3160 | "kp-subtract", | |
3161 | "kp-decimal", | |
3162 | "kp-divide", /* 0xffaf */ | |
3163 | "kp-0", /* 0xffb0 */ | |
3164 | "kp-1", "kp-2", "kp-3", "kp-4", "kp-5", "kp-6", "kp-7", "kp-8", "kp-9", | |
3165 | 0, /* 0xffba */ | |
3166 | 0, 0, | |
3167 | "kp-equal", /* 0xffbd */ | |
3168 | "f1", /* 0xffbe */ /* IsFunctionKey */ | |
86e5706b RS |
3169 | "f2", |
3170 | "f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10", /* 0xffc0 */ | |
3171 | "f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18", | |
3172 | "f19", "f20", "f21", "f22", "f23", "f24", "f25", "f26", /* 0xffd0 */ | |
3173 | "f27", "f28", "f29", "f30", "f31", "f32", "f33", "f34", | |
3174 | "f35", 0, 0, 0, 0, 0, 0, 0, /* 0xffe0 */ | |
3175 | 0, 0, 0, 0, 0, 0, 0, 0, | |
3176 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfff0 */ | |
3177 | 0, 0, 0, 0, 0, 0, 0, "delete" | |
284f4730 JB |
3178 | }; |
3179 | ||
e98a93eb GV |
3180 | #endif /* HAVE_NTGUI */ |
3181 | ||
df0f2ba1 | 3182 | static char *lispy_mouse_names[] = |
284f4730 JB |
3183 | { |
3184 | "mouse-1", "mouse-2", "mouse-3", "mouse-4", "mouse-5" | |
3185 | }; | |
3186 | ||
3c370943 | 3187 | /* Scroll bar parts. */ |
4bb994d1 JB |
3188 | Lisp_Object Qabove_handle, Qhandle, Qbelow_handle; |
3189 | ||
3c370943 JB |
3190 | /* An array of scroll bar parts, indexed by an enum scroll_bar_part value. */ |
3191 | Lisp_Object *scroll_bar_parts[] = { | |
4bb994d1 JB |
3192 | &Qabove_handle, &Qhandle, &Qbelow_handle |
3193 | }; | |
3194 | ||
3195 | ||
7b4aedb9 | 3196 | /* A vector, indexed by button number, giving the down-going location |
3c370943 | 3197 | of currently depressed buttons, both scroll bar and non-scroll bar. |
7b4aedb9 JB |
3198 | |
3199 | The elements have the form | |
3200 | (BUTTON-NUMBER MODIFIER-MASK . REST) | |
3201 | where REST is the cdr of a position as it would be reported in the event. | |
3202 | ||
3203 | The make_lispy_event function stores positions here to tell the | |
3204 | difference between click and drag events, and to store the starting | |
3205 | location to be included in drag events. */ | |
3206 | ||
3207 | static Lisp_Object button_down_location; | |
88cb0656 | 3208 | |
fbcd35bd JB |
3209 | /* Information about the most recent up-going button event: Which |
3210 | button, what location, and what time. */ | |
3211 | ||
559f9d04 RS |
3212 | static int last_mouse_button; |
3213 | static int last_mouse_x; | |
3214 | static int last_mouse_y; | |
3215 | static unsigned long button_down_time; | |
fbcd35bd | 3216 | |
564dc952 JB |
3217 | /* The maximum time between clicks to make a double-click, |
3218 | or Qnil to disable double-click detection, | |
3219 | or Qt for no time limit. */ | |
3220 | Lisp_Object Vdouble_click_time; | |
fbcd35bd JB |
3221 | |
3222 | /* The number of clicks in this multiple-click. */ | |
3223 | ||
3224 | int double_click_count; | |
3225 | ||
284f4730 JB |
3226 | /* Given a struct input_event, build the lisp event which represents |
3227 | it. If EVENT is 0, build a mouse movement event from the mouse | |
88cb0656 JB |
3228 | movement buffer, which should have a movement event in it. |
3229 | ||
3230 | Note that events must be passed to this function in the order they | |
3231 | are received; this function stores the location of button presses | |
3232 | in order to build drag events when the button is released. */ | |
284f4730 JB |
3233 | |
3234 | static Lisp_Object | |
3235 | make_lispy_event (event) | |
3236 | struct input_event *event; | |
3237 | { | |
79a7046c RS |
3238 | int i; |
3239 | ||
0220c518 | 3240 | switch (SWITCH_ENUM_CAST (event->kind)) |
284f4730 | 3241 | { |
284f4730 JB |
3242 | /* A simple keystroke. */ |
3243 | case ascii_keystroke: | |
86e5706b | 3244 | { |
9343ab07 | 3245 | Lisp_Object lispy_c; |
e9bf89a0 | 3246 | int c = event->code & 0377; |
5a1c6df8 JB |
3247 | /* Turn ASCII characters into control characters |
3248 | when proper. */ | |
3249 | if (event->modifiers & ctrl_modifier) | |
d205953b JB |
3250 | c = make_ctrl_char (c); |
3251 | ||
3252 | /* Add in the other modifier bits. We took care of ctrl_modifier | |
3253 | just above, and the shift key was taken care of by the X code, | |
3254 | and applied to control characters by make_ctrl_char. */ | |
86e5706b RS |
3255 | c |= (event->modifiers |
3256 | & (meta_modifier | alt_modifier | |
3257 | | hyper_modifier | super_modifier)); | |
559f9d04 | 3258 | button_down_time = 0; |
bb9e9bed | 3259 | XSETFASTINT (lispy_c, c); |
9343ab07 | 3260 | return lispy_c; |
86e5706b | 3261 | } |
284f4730 JB |
3262 | |
3263 | /* A function key. The symbol may need to have modifier prefixes | |
3264 | tacked onto it. */ | |
3265 | case non_ascii_keystroke: | |
559f9d04 | 3266 | button_down_time = 0; |
e9bf89a0 RS |
3267 | |
3268 | for (i = 0; i < sizeof (lispy_accent_codes) / sizeof (int); i++) | |
3269 | if (event->code == lispy_accent_codes[i]) | |
3270 | return modify_event_symbol (i, | |
3271 | event->modifiers, | |
80e4aa30 | 3272 | Qfunction_key, Qnil, |
e9bf89a0 RS |
3273 | lispy_accent_keys, &accent_key_syms, |
3274 | (sizeof (lispy_accent_keys) | |
3275 | / sizeof (lispy_accent_keys[0]))); | |
3276 | ||
270a208f | 3277 | /* Handle system-specific keysyms. */ |
80e4aa30 RS |
3278 | if (event->code & (1 << 28)) |
3279 | { | |
3280 | /* We need to use an alist rather than a vector as the cache | |
3281 | since we can't make a vector long enuf. */ | |
142e6c73 KH |
3282 | if (NILP (current_kboard->system_key_syms)) |
3283 | current_kboard->system_key_syms = Fcons (Qnil, Qnil); | |
2c834fb3 | 3284 | return modify_event_symbol (event->code, |
80e4aa30 | 3285 | event->modifiers, |
7c97ffdc KH |
3286 | Qfunction_key, |
3287 | current_kboard->Vsystem_key_alist, | |
142e6c73 KH |
3288 | 0, ¤t_kboard->system_key_syms, |
3289 | (unsigned)-1); | |
80e4aa30 RS |
3290 | } |
3291 | ||
e98a93eb | 3292 | return modify_event_symbol (event->code - FUNCTION_KEY_OFFSET, |
e9bf89a0 | 3293 | event->modifiers, |
80e4aa30 | 3294 | Qfunction_key, Qnil, |
284f4730 JB |
3295 | lispy_function_keys, &func_key_syms, |
3296 | (sizeof (lispy_function_keys) | |
3297 | / sizeof (lispy_function_keys[0]))); | |
3298 | break; | |
3299 | ||
514354e9 | 3300 | #ifdef HAVE_MOUSE |
df0f2ba1 | 3301 | /* A mouse click. Figure out where it is, decide whether it's |
88cb0656 | 3302 | a press, click or drag, and build the appropriate structure. */ |
284f4730 | 3303 | case mouse_click: |
3c370943 | 3304 | case scroll_bar_click: |
284f4730 | 3305 | { |
e9bf89a0 | 3306 | int button = event->code; |
559f9d04 | 3307 | int is_double; |
7b4aedb9 | 3308 | Lisp_Object position; |
dbc4e1c1 JB |
3309 | Lisp_Object *start_pos_ptr; |
3310 | Lisp_Object start_pos; | |
284f4730 | 3311 | |
7b4aedb9 | 3312 | if (button < 0 || button >= NUM_MOUSE_BUTTONS) |
88cb0656 JB |
3313 | abort (); |
3314 | ||
7b4aedb9 JB |
3315 | /* Build the position as appropriate for this mouse click. */ |
3316 | if (event->kind == mouse_click) | |
284f4730 | 3317 | { |
7b4aedb9 | 3318 | int part; |
598a9fa7 | 3319 | FRAME_PTR f = XFRAME (event->frame_or_window); |
0aafc975 | 3320 | Lisp_Object window; |
7b4aedb9 | 3321 | Lisp_Object posn; |
9e20143a RS |
3322 | int row, column; |
3323 | ||
5da3133a RS |
3324 | /* Ignore mouse events that were made on frame that |
3325 | have been deleted. */ | |
3326 | if (! FRAME_LIVE_P (f)) | |
3327 | return Qnil; | |
3328 | ||
9e20143a | 3329 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), |
6c6a9be8 | 3330 | &column, &row, NULL, 1); |
7b4aedb9 | 3331 | |
eef045bf RS |
3332 | #ifndef USE_X_TOOLKIT |
3333 | /* In the non-toolkit version, clicks on the menu bar | |
3334 | are ordinary button events in the event buffer. | |
3335 | Distinguish them, and invoke the menu. | |
3336 | ||
3337 | (In the toolkit version, the toolkit handles the menu bar | |
3338 | and Emacs doesn't know about it until after the user | |
3339 | makes a selection.) */ | |
2ee250ec RS |
3340 | if (row >= 0 && row < FRAME_MENU_BAR_LINES (f) |
3341 | && (event->modifiers & down_modifier)) | |
bb936752 | 3342 | { |
b7c49376 | 3343 | Lisp_Object items, item; |
0a0e8fe6 RS |
3344 | int hpos; |
3345 | int i; | |
3346 | ||
2ee250ec | 3347 | #if 0 |
0a0e8fe6 RS |
3348 | /* Activate the menu bar on the down event. If the |
3349 | up event comes in before the menu code can deal with it, | |
3350 | just ignore it. */ | |
3351 | if (! (event->modifiers & down_modifier)) | |
3352 | return Qnil; | |
2ee250ec | 3353 | #endif |
0aafc975 | 3354 | |
f2ae6b3f | 3355 | item = Qnil; |
5ec75a55 | 3356 | items = FRAME_MENU_BAR_ITEMS (f); |
b7c49376 | 3357 | for (i = 0; i < XVECTOR (items)->size; i += 3) |
5ec75a55 RS |
3358 | { |
3359 | Lisp_Object pos, string; | |
b7c49376 RS |
3360 | string = XVECTOR (items)->contents[i + 1]; |
3361 | pos = XVECTOR (items)->contents[i + 2]; | |
3362 | if (NILP (string)) | |
3363 | break; | |
9e20143a RS |
3364 | if (column >= XINT (pos) |
3365 | && column < XINT (pos) + XSTRING (string)->size) | |
b7c49376 RS |
3366 | { |
3367 | item = XVECTOR (items)->contents[i]; | |
3368 | break; | |
3369 | } | |
5ec75a55 | 3370 | } |
9e20143a | 3371 | |
5ec75a55 RS |
3372 | position |
3373 | = Fcons (event->frame_or_window, | |
3374 | Fcons (Qmenu_bar, | |
3375 | Fcons (Fcons (event->x, event->y), | |
3376 | Fcons (make_number (event->timestamp), | |
3377 | Qnil)))); | |
3378 | ||
b7c49376 | 3379 | return Fcons (item, Fcons (position, Qnil)); |
5ec75a55 | 3380 | } |
eef045bf | 3381 | #endif /* not USE_X_TOOLKIT */ |
0aafc975 | 3382 | |
9e20143a | 3383 | window = window_from_coordinates (f, column, row, &part); |
0aafc975 | 3384 | |
8c18cbfb | 3385 | if (!WINDOWP (window)) |
78ced549 RS |
3386 | { |
3387 | window = event->frame_or_window; | |
3388 | posn = Qnil; | |
3389 | } | |
284f4730 | 3390 | else |
7b4aedb9 | 3391 | { |
9e20143a RS |
3392 | int pixcolumn, pixrow; |
3393 | column -= XINT (XWINDOW (window)->left); | |
3394 | row -= XINT (XWINDOW (window)->top); | |
3395 | glyph_to_pixel_coords (f, column, row, &pixcolumn, &pixrow); | |
3396 | XSETINT (event->x, pixcolumn); | |
3397 | XSETINT (event->y, pixrow); | |
dbc4e1c1 | 3398 | |
7b4aedb9 JB |
3399 | if (part == 1) |
3400 | posn = Qmode_line; | |
3401 | else if (part == 2) | |
3402 | posn = Qvertical_line; | |
3403 | else | |
18cd2eeb KH |
3404 | XSETINT (posn, |
3405 | buffer_posn_from_coords (XWINDOW (window), | |
3406 | column, row)); | |
7b4aedb9 JB |
3407 | } |
3408 | ||
5ec75a55 RS |
3409 | position |
3410 | = Fcons (window, | |
3411 | Fcons (posn, | |
3412 | Fcons (Fcons (event->x, event->y), | |
3413 | Fcons (make_number (event->timestamp), | |
3414 | Qnil)))); | |
284f4730 | 3415 | } |
7b4aedb9 | 3416 | else |
88cb0656 | 3417 | { |
9e20143a RS |
3418 | Lisp_Object window; |
3419 | Lisp_Object portion_whole; | |
3420 | Lisp_Object part; | |
3421 | ||
3422 | window = event->frame_or_window; | |
3423 | portion_whole = Fcons (event->x, event->y); | |
3424 | part = *scroll_bar_parts[(int) event->part]; | |
7b4aedb9 JB |
3425 | |
3426 | position = | |
3427 | Fcons (window, | |
3c370943 | 3428 | Fcons (Qvertical_scroll_bar, |
7b4aedb9 JB |
3429 | Fcons (portion_whole, |
3430 | Fcons (make_number (event->timestamp), | |
9e20143a | 3431 | Fcons (part, Qnil))))); |
88cb0656 JB |
3432 | } |
3433 | ||
dbc4e1c1 JB |
3434 | start_pos_ptr = &XVECTOR (button_down_location)->contents[button]; |
3435 | ||
3436 | start_pos = *start_pos_ptr; | |
3437 | *start_pos_ptr = Qnil; | |
7b4aedb9 | 3438 | |
559f9d04 RS |
3439 | is_double = (button == last_mouse_button |
3440 | && XINT (event->x) == last_mouse_x | |
3441 | && XINT (event->y) == last_mouse_y | |
3442 | && button_down_time != 0 | |
3443 | && (EQ (Vdouble_click_time, Qt) | |
3444 | || (INTEGERP (Vdouble_click_time) | |
3445 | && ((int)(event->timestamp - button_down_time) | |
3446 | < XINT (Vdouble_click_time))))); | |
3447 | last_mouse_button = button; | |
3448 | last_mouse_x = XINT (event->x); | |
3449 | last_mouse_y = XINT (event->y); | |
3450 | ||
7b4aedb9 JB |
3451 | /* If this is a button press, squirrel away the location, so |
3452 | we can decide later whether it was a click or a drag. */ | |
3453 | if (event->modifiers & down_modifier) | |
559f9d04 RS |
3454 | { |
3455 | if (is_double) | |
3456 | { | |
3457 | double_click_count++; | |
3458 | event->modifiers |= ((double_click_count > 2) | |
3459 | ? triple_modifier | |
3460 | : double_modifier); | |
3461 | } | |
3462 | else | |
3463 | double_click_count = 1; | |
3464 | button_down_time = event->timestamp; | |
3465 | *start_pos_ptr = Fcopy_alist (position); | |
3466 | } | |
7b4aedb9 | 3467 | |
88cb0656 | 3468 | /* Now we're releasing a button - check the co-ordinates to |
7b4aedb9 | 3469 | see if this was a click or a drag. */ |
88cb0656 JB |
3470 | else if (event->modifiers & up_modifier) |
3471 | { | |
48e416d4 RS |
3472 | /* If we did not see a down before this up, |
3473 | ignore the up. Probably this happened because | |
3474 | the down event chose a menu item. | |
3475 | It would be an annoyance to treat the release | |
3476 | of the button that chose the menu item | |
3477 | as a separate event. */ | |
3478 | ||
8c18cbfb | 3479 | if (!CONSP (start_pos)) |
48e416d4 RS |
3480 | return Qnil; |
3481 | ||
88cb0656 | 3482 | event->modifiers &= ~up_modifier; |
48e416d4 | 3483 | #if 0 /* Formerly we treated an up with no down as a click event. */ |
8c18cbfb | 3484 | if (!CONSP (start_pos)) |
dbc4e1c1 JB |
3485 | event->modifiers |= click_modifier; |
3486 | else | |
48e416d4 | 3487 | #endif |
dbc4e1c1 JB |
3488 | { |
3489 | /* The third element of every position should be the (x,y) | |
3490 | pair. */ | |
9b8eb840 | 3491 | Lisp_Object down; |
dbc4e1c1 | 3492 | |
9b8eb840 | 3493 | down = Fnth (make_number (2), start_pos); |
fbcd35bd JB |
3494 | if (EQ (event->x, XCONS (down)->car) |
3495 | && EQ (event->y, XCONS (down)->cdr)) | |
3496 | { | |
bc536d84 | 3497 | event->modifiers |= click_modifier; |
fbcd35bd JB |
3498 | } |
3499 | else | |
3500 | { | |
559f9d04 | 3501 | button_down_time = 0; |
fbcd35bd JB |
3502 | event->modifiers |= drag_modifier; |
3503 | } | |
bc536d84 RS |
3504 | /* Don't check is_double; treat this as multiple |
3505 | if the down-event was multiple. */ | |
3506 | if (double_click_count > 1) | |
3507 | event->modifiers |= ((double_click_count > 2) | |
3508 | ? triple_modifier | |
3509 | : double_modifier); | |
dbc4e1c1 | 3510 | } |
88cb0656 JB |
3511 | } |
3512 | else | |
3513 | /* Every mouse event should either have the down_modifier or | |
7b4aedb9 | 3514 | the up_modifier set. */ |
88cb0656 JB |
3515 | abort (); |
3516 | ||
88cb0656 | 3517 | { |
7b4aedb9 | 3518 | /* Get the symbol we should use for the mouse click. */ |
9b8eb840 KH |
3519 | Lisp_Object head; |
3520 | ||
3521 | head = modify_event_symbol (button, | |
3522 | event->modifiers, | |
3523 | Qmouse_click, Qnil, | |
3524 | lispy_mouse_names, &mouse_syms, | |
3525 | (sizeof (lispy_mouse_names) | |
3526 | / sizeof (lispy_mouse_names[0]))); | |
88cb0656 | 3527 | if (event->modifiers & drag_modifier) |
dbc4e1c1 JB |
3528 | return Fcons (head, |
3529 | Fcons (start_pos, | |
3530 | Fcons (position, | |
3531 | Qnil))); | |
fbcd35bd JB |
3532 | else if (event->modifiers & (double_modifier | triple_modifier)) |
3533 | return Fcons (head, | |
3534 | Fcons (position, | |
3535 | Fcons (make_number (double_click_count), | |
3536 | Qnil))); | |
88cb0656 JB |
3537 | else |
3538 | return Fcons (head, | |
7b4aedb9 | 3539 | Fcons (position, |
88cb0656 JB |
3540 | Qnil)); |
3541 | } | |
284f4730 | 3542 | } |
514354e9 | 3543 | #endif /* HAVE_MOUSE */ |
284f4730 | 3544 | |
e98a93eb | 3545 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) |
2470a66f KH |
3546 | case menu_bar_event: |
3547 | /* The event value is in the cdr of the frame_or_window slot. */ | |
3548 | if (!CONSP (event->frame_or_window)) | |
3549 | abort (); | |
3550 | return XCONS (event->frame_or_window)->cdr; | |
3551 | #endif | |
3552 | ||
284f4730 JB |
3553 | /* The 'kind' field of the event is something we don't recognize. */ |
3554 | default: | |
48e416d4 | 3555 | abort (); |
284f4730 JB |
3556 | } |
3557 | } | |
3558 | ||
514354e9 | 3559 | #ifdef HAVE_MOUSE |
6cbff1cb | 3560 | |
284f4730 | 3561 | static Lisp_Object |
7b4aedb9 | 3562 | make_lispy_movement (frame, bar_window, part, x, y, time) |
ff11dfa1 | 3563 | FRAME_PTR frame; |
7b4aedb9 | 3564 | Lisp_Object bar_window; |
3c370943 | 3565 | enum scroll_bar_part part; |
284f4730 | 3566 | Lisp_Object x, y; |
e5d77022 | 3567 | unsigned long time; |
284f4730 | 3568 | { |
68553292 | 3569 | #ifdef MULTI_FRAME |
3c370943 | 3570 | /* Is it a scroll bar movement? */ |
7b4aedb9 | 3571 | if (frame && ! NILP (bar_window)) |
4bb994d1 | 3572 | { |
9b8eb840 | 3573 | Lisp_Object part_sym; |
4bb994d1 | 3574 | |
9b8eb840 | 3575 | part_sym = *scroll_bar_parts[(int) part]; |
3c370943 | 3576 | return Fcons (Qscroll_bar_movement, |
7b4aedb9 | 3577 | (Fcons (Fcons (bar_window, |
3c370943 | 3578 | Fcons (Qvertical_scroll_bar, |
4bb994d1 JB |
3579 | Fcons (Fcons (x, y), |
3580 | Fcons (make_number (time), | |
cb5df6ae | 3581 | Fcons (part_sym, |
4bb994d1 JB |
3582 | Qnil))))), |
3583 | Qnil))); | |
3584 | } | |
3585 | ||
3586 | /* Or is it an ordinary mouse movement? */ | |
284f4730 | 3587 | else |
68553292 | 3588 | #endif /* MULTI_FRAME */ |
284f4730 | 3589 | { |
4bb994d1 | 3590 | int area; |
9e20143a | 3591 | Lisp_Object window; |
4bb994d1 | 3592 | Lisp_Object posn; |
9e20143a RS |
3593 | int column, row; |
3594 | ||
68553292 | 3595 | #ifdef MULTI_FRAME |
9e20143a | 3596 | if (frame) |
68553292 RS |
3597 | #else |
3598 | if (1) | |
3599 | #endif | |
047688cb RS |
3600 | { |
3601 | /* It's in a frame; which window on that frame? */ | |
6c6a9be8 KH |
3602 | pixel_to_glyph_coords (frame, XINT (x), XINT (y), &column, &row, |
3603 | NULL, 1); | |
047688cb RS |
3604 | window = window_from_coordinates (frame, column, row, &area); |
3605 | } | |
9e20143a RS |
3606 | else |
3607 | window = Qnil; | |
4bb994d1 | 3608 | |
8c18cbfb | 3609 | if (WINDOWP (window)) |
4bb994d1 | 3610 | { |
9e20143a RS |
3611 | int pixcolumn, pixrow; |
3612 | column -= XINT (XWINDOW (window)->left); | |
3613 | row -= XINT (XWINDOW (window)->top); | |
3614 | glyph_to_pixel_coords (frame, column, row, &pixcolumn, &pixrow); | |
3615 | XSETINT (x, pixcolumn); | |
3616 | XSETINT (y, pixrow); | |
4bb994d1 JB |
3617 | |
3618 | if (area == 1) | |
3619 | posn = Qmode_line; | |
3620 | else if (area == 2) | |
3621 | posn = Qvertical_line; | |
3622 | else | |
18cd2eeb KH |
3623 | XSETINT (posn, |
3624 | buffer_posn_from_coords (XWINDOW (window), column, row)); | |
4bb994d1 | 3625 | } |
68553292 | 3626 | #ifdef MULTI_FRAME |
e9bf89a0 RS |
3627 | else if (frame != 0) |
3628 | { | |
18cd2eeb | 3629 | XSETFRAME (window, frame); |
e9bf89a0 RS |
3630 | posn = Qnil; |
3631 | } | |
68553292 | 3632 | #endif |
284f4730 | 3633 | else |
4bb994d1 JB |
3634 | { |
3635 | window = Qnil; | |
3636 | posn = Qnil; | |
bb9e9bed KH |
3637 | XSETFASTINT (x, 0); |
3638 | XSETFASTINT (y, 0); | |
4bb994d1 | 3639 | } |
284f4730 | 3640 | |
4bb994d1 JB |
3641 | return Fcons (Qmouse_movement, |
3642 | Fcons (Fcons (window, | |
3643 | Fcons (posn, | |
3644 | Fcons (Fcons (x, y), | |
3645 | Fcons (make_number (time), | |
3646 | Qnil)))), | |
3647 | Qnil)); | |
3648 | } | |
284f4730 JB |
3649 | } |
3650 | ||
514354e9 | 3651 | #endif /* HAVE_MOUSE */ |
6cbff1cb | 3652 | |
cd21b839 JB |
3653 | /* Construct a switch frame event. */ |
3654 | static Lisp_Object | |
3655 | make_lispy_switch_frame (frame) | |
3656 | Lisp_Object frame; | |
3657 | { | |
3658 | return Fcons (Qswitch_frame, Fcons (frame, Qnil)); | |
3659 | } | |
0a7f1fc0 JB |
3660 | \f |
3661 | /* Manipulating modifiers. */ | |
284f4730 | 3662 | |
0a7f1fc0 | 3663 | /* Parse the name of SYMBOL, and return the set of modifiers it contains. |
284f4730 | 3664 | |
0a7f1fc0 JB |
3665 | If MODIFIER_END is non-zero, set *MODIFIER_END to the position in |
3666 | SYMBOL's name of the end of the modifiers; the string from this | |
3667 | position is the unmodified symbol name. | |
284f4730 | 3668 | |
0a7f1fc0 | 3669 | This doesn't use any caches. */ |
6da3dd3a | 3670 | |
0a7f1fc0 JB |
3671 | static int |
3672 | parse_modifiers_uncached (symbol, modifier_end) | |
284f4730 | 3673 | Lisp_Object symbol; |
0a7f1fc0 | 3674 | int *modifier_end; |
284f4730 JB |
3675 | { |
3676 | struct Lisp_String *name; | |
3677 | int i; | |
3678 | int modifiers; | |
284f4730 JB |
3679 | |
3680 | CHECK_SYMBOL (symbol, 1); | |
df0f2ba1 | 3681 | |
284f4730 JB |
3682 | modifiers = 0; |
3683 | name = XSYMBOL (symbol)->name; | |
3684 | ||
0a7f1fc0 | 3685 | for (i = 0; i+2 <= name->size; ) |
6da3dd3a RS |
3686 | { |
3687 | int this_mod_end = 0; | |
3688 | int this_mod = 0; | |
284f4730 | 3689 | |
6da3dd3a RS |
3690 | /* See if the name continues with a modifier word. |
3691 | Check that the word appears, but don't check what follows it. | |
3692 | Set this_mod and this_mod_end to record what we find. */ | |
fce33686 | 3693 | |
6da3dd3a RS |
3694 | switch (name->data[i]) |
3695 | { | |
3696 | #define SINGLE_LETTER_MOD(BIT) \ | |
3697 | (this_mod_end = i + 1, this_mod = BIT) | |
3698 | ||
6da3dd3a RS |
3699 | case 'A': |
3700 | SINGLE_LETTER_MOD (alt_modifier); | |
3701 | break; | |
284f4730 | 3702 | |
6da3dd3a RS |
3703 | case 'C': |
3704 | SINGLE_LETTER_MOD (ctrl_modifier); | |
3705 | break; | |
284f4730 | 3706 | |
6da3dd3a RS |
3707 | case 'H': |
3708 | SINGLE_LETTER_MOD (hyper_modifier); | |
3709 | break; | |
3710 | ||
6da3dd3a RS |
3711 | case 'M': |
3712 | SINGLE_LETTER_MOD (meta_modifier); | |
3713 | break; | |
3714 | ||
6da3dd3a RS |
3715 | case 'S': |
3716 | SINGLE_LETTER_MOD (shift_modifier); | |
3717 | break; | |
3718 | ||
3719 | case 's': | |
6da3dd3a RS |
3720 | SINGLE_LETTER_MOD (super_modifier); |
3721 | break; | |
3722 | ||
0a7f1fc0 | 3723 | #undef SINGLE_LETTER_MOD |
6da3dd3a RS |
3724 | } |
3725 | ||
3726 | /* If we found no modifier, stop looking for them. */ | |
3727 | if (this_mod_end == 0) | |
3728 | break; | |
3729 | ||
3730 | /* Check there is a dash after the modifier, so that it | |
3731 | really is a modifier. */ | |
3732 | if (this_mod_end >= name->size || name->data[this_mod_end] != '-') | |
3733 | break; | |
3734 | ||
3735 | /* This modifier is real; look for another. */ | |
3736 | modifiers |= this_mod; | |
3737 | i = this_mod_end + 1; | |
3738 | } | |
284f4730 | 3739 | |
0a7f1fc0 | 3740 | /* Should we include the `click' modifier? */ |
fbcd35bd JB |
3741 | if (! (modifiers & (down_modifier | drag_modifier |
3742 | | double_modifier | triple_modifier)) | |
0a7f1fc0 | 3743 | && i + 7 == name->size |
4bb994d1 | 3744 | && strncmp (name->data + i, "mouse-", 6) == 0 |
6569cc8d | 3745 | && ('0' <= name->data[i + 6] && name->data[i + 6] <= '9')) |
0a7f1fc0 JB |
3746 | modifiers |= click_modifier; |
3747 | ||
3748 | if (modifier_end) | |
3749 | *modifier_end = i; | |
3750 | ||
3751 | return modifiers; | |
3752 | } | |
3753 | ||
0a7f1fc0 JB |
3754 | /* Return a symbol whose name is the modifier prefixes for MODIFIERS |
3755 | prepended to the string BASE[0..BASE_LEN-1]. | |
3756 | This doesn't use any caches. */ | |
3757 | static Lisp_Object | |
3758 | apply_modifiers_uncached (modifiers, base, base_len) | |
3759 | int modifiers; | |
3760 | char *base; | |
3761 | int base_len; | |
3762 | { | |
3763 | /* Since BASE could contain nulls, we can't use intern here; we have | |
3764 | to use Fintern, which expects a genuine Lisp_String, and keeps a | |
3765 | reference to it. */ | |
3766 | char *new_mods = | |
fbcd35bd | 3767 | (char *) alloca (sizeof ("A-C-H-M-S-s-down-drag-double-triple-")); |
0a7f1fc0 | 3768 | int mod_len; |
284f4730 | 3769 | |
284f4730 | 3770 | { |
0a7f1fc0 JB |
3771 | char *p = new_mods; |
3772 | ||
3773 | /* Only the event queue may use the `up' modifier; it should always | |
3774 | be turned into a click or drag event before presented to lisp code. */ | |
3775 | if (modifiers & up_modifier) | |
3776 | abort (); | |
3777 | ||
3778 | if (modifiers & alt_modifier) { *p++ = 'A'; *p++ = '-'; } | |
3779 | if (modifiers & ctrl_modifier) { *p++ = 'C'; *p++ = '-'; } | |
3780 | if (modifiers & hyper_modifier) { *p++ = 'H'; *p++ = '-'; } | |
3781 | if (modifiers & meta_modifier) { *p++ = 'M'; *p++ = '-'; } | |
3782 | if (modifiers & shift_modifier) { *p++ = 'S'; *p++ = '-'; } | |
86e5706b | 3783 | if (modifiers & super_modifier) { *p++ = 's'; *p++ = '-'; } |
fbcd35bd JB |
3784 | if (modifiers & double_modifier) { strcpy (p, "double-"); p += 7; } |
3785 | if (modifiers & triple_modifier) { strcpy (p, "triple-"); p += 7; } | |
559f9d04 RS |
3786 | if (modifiers & down_modifier) { strcpy (p, "down-"); p += 5; } |
3787 | if (modifiers & drag_modifier) { strcpy (p, "drag-"); p += 5; } | |
0a7f1fc0 JB |
3788 | /* The click modifier is denoted by the absence of other modifiers. */ |
3789 | ||
3790 | *p = '\0'; | |
3791 | ||
3792 | mod_len = p - new_mods; | |
3793 | } | |
284f4730 | 3794 | |
0a7f1fc0 | 3795 | { |
9b8eb840 | 3796 | Lisp_Object new_name; |
df0f2ba1 | 3797 | |
9b8eb840 | 3798 | new_name = make_uninit_string (mod_len + base_len); |
0a7f1fc0 JB |
3799 | bcopy (new_mods, XSTRING (new_name)->data, mod_len); |
3800 | bcopy (base, XSTRING (new_name)->data + mod_len, base_len); | |
284f4730 JB |
3801 | |
3802 | return Fintern (new_name, Qnil); | |
3803 | } | |
3804 | } | |
3805 | ||
3806 | ||
0a7f1fc0 JB |
3807 | static char *modifier_names[] = |
3808 | { | |
fbcd35bd | 3809 | "up", "down", "drag", "click", "double", "triple", 0, 0, |
f335fabe | 3810 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
86e5706b | 3811 | 0, 0, "alt", "super", "hyper", "shift", "control", "meta" |
0a7f1fc0 | 3812 | }; |
80645119 | 3813 | #define NUM_MOD_NAMES (sizeof (modifier_names) / sizeof (modifier_names[0])) |
0a7f1fc0 JB |
3814 | |
3815 | static Lisp_Object modifier_symbols; | |
3816 | ||
3817 | /* Return the list of modifier symbols corresponding to the mask MODIFIERS. */ | |
3818 | static Lisp_Object | |
3819 | lispy_modifier_list (modifiers) | |
3820 | int modifiers; | |
3821 | { | |
3822 | Lisp_Object modifier_list; | |
3823 | int i; | |
3824 | ||
3825 | modifier_list = Qnil; | |
80645119 | 3826 | for (i = 0; (1<<i) <= modifiers && i < NUM_MOD_NAMES; i++) |
0a7f1fc0 | 3827 | if (modifiers & (1<<i)) |
80645119 JB |
3828 | modifier_list = Fcons (XVECTOR (modifier_symbols)->contents[i], |
3829 | modifier_list); | |
0a7f1fc0 JB |
3830 | |
3831 | return modifier_list; | |
3832 | } | |
3833 | ||
3834 | ||
3835 | /* Parse the modifiers on SYMBOL, and return a list like (UNMODIFIED MASK), | |
3836 | where UNMODIFIED is the unmodified form of SYMBOL, | |
3837 | MASK is the set of modifiers present in SYMBOL's name. | |
3838 | This is similar to parse_modifiers_uncached, but uses the cache in | |
3839 | SYMBOL's Qevent_symbol_element_mask property, and maintains the | |
3840 | Qevent_symbol_elements property. */ | |
3d31316f | 3841 | |
0a7f1fc0 JB |
3842 | static Lisp_Object |
3843 | parse_modifiers (symbol) | |
3844 | Lisp_Object symbol; | |
3845 | { | |
9b8eb840 | 3846 | Lisp_Object elements; |
0a7f1fc0 | 3847 | |
9b8eb840 | 3848 | elements = Fget (symbol, Qevent_symbol_element_mask); |
0a7f1fc0 JB |
3849 | if (CONSP (elements)) |
3850 | return elements; | |
3851 | else | |
3852 | { | |
3853 | int end; | |
ec0faad2 | 3854 | int modifiers = parse_modifiers_uncached (symbol, &end); |
9b8eb840 | 3855 | Lisp_Object unmodified; |
0a7f1fc0 JB |
3856 | Lisp_Object mask; |
3857 | ||
9b8eb840 KH |
3858 | unmodified = Fintern (make_string (XSYMBOL (symbol)->name->data + end, |
3859 | XSYMBOL (symbol)->name->size - end), | |
3860 | Qnil); | |
3861 | ||
ec0faad2 | 3862 | if (modifiers & ~(((EMACS_INT)1 << VALBITS) - 1)) |
734fef94 | 3863 | abort (); |
bb9e9bed | 3864 | XSETFASTINT (mask, modifiers); |
0a7f1fc0 JB |
3865 | elements = Fcons (unmodified, Fcons (mask, Qnil)); |
3866 | ||
3867 | /* Cache the parsing results on SYMBOL. */ | |
3868 | Fput (symbol, Qevent_symbol_element_mask, | |
3869 | elements); | |
3870 | Fput (symbol, Qevent_symbol_elements, | |
3871 | Fcons (unmodified, lispy_modifier_list (modifiers))); | |
3872 | ||
3873 | /* Since we know that SYMBOL is modifiers applied to unmodified, | |
3874 | it would be nice to put that in unmodified's cache. | |
3875 | But we can't, since we're not sure that parse_modifiers is | |
3876 | canonical. */ | |
3877 | ||
3878 | return elements; | |
3879 | } | |
3880 | } | |
3881 | ||
3882 | /* Apply the modifiers MODIFIERS to the symbol BASE. | |
3883 | BASE must be unmodified. | |
3884 | ||
3885 | This is like apply_modifiers_uncached, but uses BASE's | |
3886 | Qmodifier_cache property, if present. It also builds | |
cd21b839 JB |
3887 | Qevent_symbol_elements properties, since it has that info anyway. |
3888 | ||
3889 | apply_modifiers copies the value of BASE's Qevent_kind property to | |
3890 | the modified symbol. */ | |
0a7f1fc0 JB |
3891 | static Lisp_Object |
3892 | apply_modifiers (modifiers, base) | |
3893 | int modifiers; | |
3894 | Lisp_Object base; | |
3895 | { | |
7b4aedb9 | 3896 | Lisp_Object cache, index, entry, new_symbol; |
0a7f1fc0 | 3897 | |
80645119 | 3898 | /* Mask out upper bits. We don't know where this value's been. */ |
ec0faad2 | 3899 | modifiers &= ((EMACS_INT)1 << VALBITS) - 1; |
80645119 | 3900 | |
0a7f1fc0 | 3901 | /* The click modifier never figures into cache indices. */ |
0a7f1fc0 | 3902 | cache = Fget (base, Qmodifier_cache); |
bb9e9bed | 3903 | XSETFASTINT (index, (modifiers & ~click_modifier)); |
697e4895 | 3904 | entry = assq_no_quit (index, cache); |
0a7f1fc0 JB |
3905 | |
3906 | if (CONSP (entry)) | |
7b4aedb9 JB |
3907 | new_symbol = XCONS (entry)->cdr; |
3908 | else | |
3909 | { | |
df0f2ba1 | 3910 | /* We have to create the symbol ourselves. */ |
7b4aedb9 JB |
3911 | new_symbol = apply_modifiers_uncached (modifiers, |
3912 | XSYMBOL (base)->name->data, | |
3913 | XSYMBOL (base)->name->size); | |
3914 | ||
3915 | /* Add the new symbol to the base's cache. */ | |
3916 | entry = Fcons (index, new_symbol); | |
3917 | Fput (base, Qmodifier_cache, Fcons (entry, cache)); | |
3918 | ||
3919 | /* We have the parsing info now for free, so add it to the caches. */ | |
bb9e9bed | 3920 | XSETFASTINT (index, modifiers); |
7b4aedb9 JB |
3921 | Fput (new_symbol, Qevent_symbol_element_mask, |
3922 | Fcons (base, Fcons (index, Qnil))); | |
3923 | Fput (new_symbol, Qevent_symbol_elements, | |
3924 | Fcons (base, lispy_modifier_list (modifiers))); | |
3925 | } | |
0a7f1fc0 | 3926 | |
df0f2ba1 | 3927 | /* Make sure this symbol is of the same kind as BASE. |
7b4aedb9 JB |
3928 | |
3929 | You'd think we could just set this once and for all when we | |
3930 | intern the symbol above, but reorder_modifiers may call us when | |
3931 | BASE's property isn't set right; we can't assume that just | |
80645119 JB |
3932 | because it has a Qmodifier_cache property it must have its |
3933 | Qevent_kind set right as well. */ | |
7b4aedb9 JB |
3934 | if (NILP (Fget (new_symbol, Qevent_kind))) |
3935 | { | |
9b8eb840 | 3936 | Lisp_Object kind; |
7b4aedb9 | 3937 | |
9b8eb840 | 3938 | kind = Fget (base, Qevent_kind); |
7b4aedb9 JB |
3939 | if (! NILP (kind)) |
3940 | Fput (new_symbol, Qevent_kind, kind); | |
3941 | } | |
3942 | ||
3943 | return new_symbol; | |
0a7f1fc0 JB |
3944 | } |
3945 | ||
3946 | ||
3947 | /* Given a symbol whose name begins with modifiers ("C-", "M-", etc), | |
3948 | return a symbol with the modifiers placed in the canonical order. | |
3949 | Canonical order is alphabetical, except for down and drag, which | |
3950 | always come last. The 'click' modifier is never written out. | |
3951 | ||
3952 | Fdefine_key calls this to make sure that (for example) C-M-foo | |
3953 | and M-C-foo end up being equivalent in the keymap. */ | |
3954 | ||
3955 | Lisp_Object | |
3956 | reorder_modifiers (symbol) | |
3957 | Lisp_Object symbol; | |
3958 | { | |
3959 | /* It's hopefully okay to write the code this way, since everything | |
3960 | will soon be in caches, and no consing will be done at all. */ | |
9b8eb840 | 3961 | Lisp_Object parsed; |
0a7f1fc0 | 3962 | |
9b8eb840 | 3963 | parsed = parse_modifiers (symbol); |
54593ed9 | 3964 | return apply_modifiers ((int) XINT (XCONS (XCONS (parsed)->cdr)->car), |
0a7f1fc0 JB |
3965 | XCONS (parsed)->car); |
3966 | } | |
3967 | ||
3968 | ||
284f4730 JB |
3969 | /* For handling events, we often want to produce a symbol whose name |
3970 | is a series of modifier key prefixes ("M-", "C-", etcetera) attached | |
3971 | to some base, like the name of a function key or mouse button. | |
3972 | modify_event_symbol produces symbols of this sort. | |
3973 | ||
3974 | NAME_TABLE should point to an array of strings, such that NAME_TABLE[i] | |
3975 | is the name of the i'th symbol. TABLE_SIZE is the number of elements | |
3976 | in the table. | |
3977 | ||
80e4aa30 RS |
3978 | Alternatively, NAME_ALIST is an alist mapping codes into symbol names. |
3979 | NAME_ALIST is used if it is non-nil; otherwise NAME_TABLE is used. | |
3980 | ||
284f4730 JB |
3981 | SYMBOL_TABLE should be a pointer to a Lisp_Object whose value will |
3982 | persist between calls to modify_event_symbol that it can use to | |
3983 | store a cache of the symbols it's generated for this NAME_TABLE | |
80e4aa30 | 3984 | before. The object stored there may be a vector or an alist. |
284f4730 JB |
3985 | |
3986 | SYMBOL_NUM is the number of the base name we want from NAME_TABLE. | |
df0f2ba1 | 3987 | |
284f4730 JB |
3988 | MODIFIERS is a set of modifier bits (as given in struct input_events) |
3989 | whose prefixes should be applied to the symbol name. | |
3990 | ||
3991 | SYMBOL_KIND is the value to be placed in the event_kind property of | |
df0f2ba1 | 3992 | the returned symbol. |
88cb0656 JB |
3993 | |
3994 | The symbols we create are supposed to have an | |
eb8c3be9 | 3995 | `event-symbol-elements' property, which lists the modifiers present |
88cb0656 JB |
3996 | in the symbol's name. */ |
3997 | ||
284f4730 | 3998 | static Lisp_Object |
80e4aa30 RS |
3999 | modify_event_symbol (symbol_num, modifiers, symbol_kind, name_alist, |
4000 | name_table, symbol_table, table_size) | |
284f4730 JB |
4001 | int symbol_num; |
4002 | unsigned modifiers; | |
4003 | Lisp_Object symbol_kind; | |
80e4aa30 | 4004 | Lisp_Object name_alist; |
284f4730 JB |
4005 | char **name_table; |
4006 | Lisp_Object *symbol_table; | |
2c834fb3 | 4007 | unsigned int table_size; |
284f4730 | 4008 | { |
80e4aa30 RS |
4009 | Lisp_Object value; |
4010 | Lisp_Object symbol_int; | |
4011 | ||
2c834fb3 KH |
4012 | /* Get rid of the "vendor-specific" bit here. */ |
4013 | XSETINT (symbol_int, symbol_num & 0xffffff); | |
284f4730 JB |
4014 | |
4015 | /* Is this a request for a valid symbol? */ | |
88cb0656 | 4016 | if (symbol_num < 0 || symbol_num >= table_size) |
0c2611c5 | 4017 | return Qnil; |
284f4730 | 4018 | |
80e4aa30 RS |
4019 | if (CONSP (*symbol_table)) |
4020 | value = Fcdr (assq_no_quit (symbol_int, *symbol_table)); | |
4021 | ||
0a7f1fc0 | 4022 | /* If *symbol_table doesn't seem to be initialized properly, fix that. |
88cb0656 | 4023 | *symbol_table should be a lisp vector TABLE_SIZE elements long, |
4bb994d1 JB |
4024 | where the Nth element is the symbol for NAME_TABLE[N], or nil if |
4025 | we've never used that symbol before. */ | |
80e4aa30 | 4026 | else |
88cb0656 | 4027 | { |
80e4aa30 RS |
4028 | if (! VECTORP (*symbol_table) |
4029 | || XVECTOR (*symbol_table)->size != table_size) | |
4030 | { | |
4031 | Lisp_Object size; | |
0a7f1fc0 | 4032 | |
bb9e9bed | 4033 | XSETFASTINT (size, table_size); |
80e4aa30 RS |
4034 | *symbol_table = Fmake_vector (size, Qnil); |
4035 | } | |
284f4730 | 4036 | |
80e4aa30 RS |
4037 | value = XVECTOR (*symbol_table)->contents[symbol_num]; |
4038 | } | |
284f4730 | 4039 | |
0a7f1fc0 | 4040 | /* Have we already used this symbol before? */ |
80e4aa30 | 4041 | if (NILP (value)) |
284f4730 | 4042 | { |
0a7f1fc0 | 4043 | /* No; let's create it. */ |
80e4aa30 | 4044 | if (!NILP (name_alist)) |
b64b4075 | 4045 | value = Fcdr_safe (Fassq (symbol_int, name_alist)); |
80e4aa30 RS |
4046 | else if (name_table[symbol_num]) |
4047 | value = intern (name_table[symbol_num]); | |
b64b4075 | 4048 | |
e98a93eb | 4049 | #ifdef HAVE_WINDOW_SYSTEM |
2c834fb3 KH |
4050 | if (NILP (value)) |
4051 | { | |
4052 | char *name = x_get_keysym_name (symbol_num); | |
4053 | if (name) | |
4054 | value = intern (name); | |
4055 | } | |
4056 | #endif | |
4057 | ||
b64b4075 | 4058 | if (NILP (value)) |
d1f50460 RS |
4059 | { |
4060 | char buf[20]; | |
4061 | sprintf (buf, "key-%d", symbol_num); | |
80e4aa30 | 4062 | value = intern (buf); |
d1f50460 | 4063 | } |
0a7f1fc0 | 4064 | |
80e4aa30 RS |
4065 | if (CONSP (*symbol_table)) |
4066 | *symbol_table = Fcons (value, *symbol_table); | |
4067 | else | |
4068 | XVECTOR (*symbol_table)->contents[symbol_num] = value; | |
4069 | ||
df0f2ba1 | 4070 | /* Fill in the cache entries for this symbol; this also |
0a7f1fc0 JB |
4071 | builds the Qevent_symbol_elements property, which the user |
4072 | cares about. */ | |
80e4aa30 RS |
4073 | apply_modifiers (modifiers & click_modifier, value); |
4074 | Fput (value, Qevent_kind, symbol_kind); | |
284f4730 | 4075 | } |
88cb0656 | 4076 | |
0a7f1fc0 | 4077 | /* Apply modifiers to that symbol. */ |
80e4aa30 | 4078 | return apply_modifiers (modifiers, value); |
284f4730 | 4079 | } |
6da3dd3a RS |
4080 | \f |
4081 | /* Convert a list that represents an event type, | |
4082 | such as (ctrl meta backspace), into the usual representation of that | |
4083 | event type as a number or a symbol. */ | |
4084 | ||
a1706c30 | 4085 | DEFUN ("event-convert-list", Fevent_convert_list, Sevent_convert_list, 1, 1, 0, |
e57d8fd8 EN |
4086 | "Convert the event description list EVENT-DESC to an event type.\n\ |
4087 | EVENT-DESC should contain one base event type (a character or symbol)\n\ | |
a1706c30 KH |
4088 | and zero or more modifier names (control, meta, hyper, super, shift, alt,\n\ |
4089 | drag, down, double or triple).\n\ | |
4090 | The return value is an event type (a character or symbol) which\n\ | |
4091 | has the same base event type and all the specified modifiers.") | |
e57d8fd8 EN |
4092 | (event_desc) |
4093 | Lisp_Object event_desc; | |
6da3dd3a RS |
4094 | { |
4095 | Lisp_Object base; | |
4096 | int modifiers = 0; | |
4097 | Lisp_Object rest; | |
4098 | ||
4099 | base = Qnil; | |
e57d8fd8 | 4100 | rest = event_desc; |
6da3dd3a RS |
4101 | while (CONSP (rest)) |
4102 | { | |
4103 | Lisp_Object elt; | |
4104 | int this = 0; | |
4105 | ||
4106 | elt = XCONS (rest)->car; | |
4107 | ||
3d31316f | 4108 | /* Given a symbol, see if it is a modifier name. */ |
6da3dd3a | 4109 | if (SYMBOLP (elt)) |
3d31316f | 4110 | this = parse_solitary_modifier (elt); |
6da3dd3a RS |
4111 | |
4112 | if (this != 0) | |
4113 | modifiers |= this; | |
4114 | else if (!NILP (base)) | |
4115 | error ("Two bases given in one event"); | |
4116 | else | |
4117 | base = elt; | |
4118 | ||
4119 | rest = XCONS (rest)->cdr; | |
4120 | } | |
4121 | ||
3d31316f RS |
4122 | /* Let the symbol A refer to the character A. */ |
4123 | if (SYMBOLP (base) && XSYMBOL (base)->name->size == 1) | |
4124 | XSETINT (base, XSYMBOL (base)->name->data[0]); | |
4125 | ||
6da3dd3a RS |
4126 | if (INTEGERP (base)) |
4127 | { | |
3d31316f RS |
4128 | /* Turn (shift a) into A. */ |
4129 | if ((modifiers & shift_modifier) != 0 | |
4130 | && (XINT (base) >= 'a' && XINT (base) <= 'z')) | |
4131 | { | |
4132 | XSETINT (base, XINT (base) - ('a' - 'A')); | |
4133 | modifiers &= ~shift_modifier; | |
4134 | } | |
4135 | ||
4136 | /* Turn (control a) into C-a. */ | |
6da3dd3a | 4137 | if (modifiers & ctrl_modifier) |
3d31316f | 4138 | return make_number ((modifiers & ~ctrl_modifier) |
6da3dd3a RS |
4139 | | make_ctrl_char (XINT (base))); |
4140 | else | |
4141 | return make_number (modifiers | XINT (base)); | |
4142 | } | |
4143 | else if (SYMBOLP (base)) | |
4144 | return apply_modifiers (modifiers, base); | |
4145 | else | |
4146 | error ("Invalid base event"); | |
4147 | } | |
4148 | ||
3d31316f RS |
4149 | /* Try to recognize SYMBOL as a modifier name. |
4150 | Return the modifier flag bit, or 0 if not recognized. */ | |
4151 | ||
4152 | static int | |
4153 | parse_solitary_modifier (symbol) | |
4154 | Lisp_Object symbol; | |
4155 | { | |
4156 | struct Lisp_String *name = XSYMBOL (symbol)->name; | |
4157 | ||
4158 | switch (name->data[0]) | |
4159 | { | |
4160 | #define SINGLE_LETTER_MOD(BIT) \ | |
4161 | if (name->size == 1) \ | |
4162 | return BIT; | |
4163 | ||
4164 | #define MULTI_LETTER_MOD(BIT, NAME, LEN) \ | |
4165 | if (LEN == name->size \ | |
4166 | && ! strncmp (name->data, NAME, LEN)) \ | |
4167 | return BIT; | |
4168 | ||
4169 | case 'A': | |
4170 | SINGLE_LETTER_MOD (alt_modifier); | |
4171 | break; | |
4172 | ||
4173 | case 'a': | |
4174 | MULTI_LETTER_MOD (alt_modifier, "alt", 3); | |
4175 | break; | |
4176 | ||
4177 | case 'C': | |
4178 | SINGLE_LETTER_MOD (ctrl_modifier); | |
4179 | break; | |
4180 | ||
4181 | case 'c': | |
4182 | MULTI_LETTER_MOD (ctrl_modifier, "ctrl", 4); | |
4183 | MULTI_LETTER_MOD (ctrl_modifier, "control", 7); | |
4184 | break; | |
4185 | ||
4186 | case 'H': | |
4187 | SINGLE_LETTER_MOD (hyper_modifier); | |
4188 | break; | |
4189 | ||
4190 | case 'h': | |
4191 | MULTI_LETTER_MOD (hyper_modifier, "hyper", 5); | |
4192 | break; | |
4193 | ||
4194 | case 'M': | |
4195 | SINGLE_LETTER_MOD (meta_modifier); | |
4196 | break; | |
4197 | ||
4198 | case 'm': | |
4199 | MULTI_LETTER_MOD (meta_modifier, "meta", 4); | |
4200 | break; | |
4201 | ||
4202 | case 'S': | |
4203 | SINGLE_LETTER_MOD (shift_modifier); | |
4204 | break; | |
4205 | ||
4206 | case 's': | |
4207 | MULTI_LETTER_MOD (shift_modifier, "shift", 5); | |
4208 | MULTI_LETTER_MOD (super_modifier, "super", 5); | |
4209 | SINGLE_LETTER_MOD (super_modifier); | |
4210 | break; | |
4211 | ||
4212 | case 'd': | |
4213 | MULTI_LETTER_MOD (drag_modifier, "drag", 4); | |
4214 | MULTI_LETTER_MOD (down_modifier, "down", 4); | |
4215 | MULTI_LETTER_MOD (double_modifier, "double", 6); | |
4216 | break; | |
4217 | ||
4218 | case 't': | |
4219 | MULTI_LETTER_MOD (triple_modifier, "triple", 6); | |
4220 | break; | |
4221 | ||
4222 | #undef SINGLE_LETTER_MOD | |
4223 | #undef MULTI_LETTER_MOD | |
4224 | } | |
4225 | ||
4226 | return 0; | |
4227 | } | |
4228 | ||
6da3dd3a RS |
4229 | /* Return 1 if EVENT is a list whose elements are all integers or symbols. |
4230 | Such a list is not valid as an event, | |
4231 | but it can be a Lucid-style event type list. */ | |
4232 | ||
4233 | int | |
4234 | lucid_event_type_list_p (object) | |
4235 | Lisp_Object object; | |
4236 | { | |
4237 | Lisp_Object tail; | |
4238 | ||
4239 | if (! CONSP (object)) | |
4240 | return 0; | |
4241 | ||
4242 | for (tail = object; CONSP (tail); tail = XCONS (tail)->cdr) | |
4243 | { | |
4244 | Lisp_Object elt; | |
4245 | elt = XCONS (tail)->car; | |
4246 | if (! (INTEGERP (elt) || SYMBOLP (elt))) | |
4247 | return 0; | |
4248 | } | |
4249 | ||
4250 | return NILP (tail); | |
4251 | } | |
284f4730 | 4252 | \f |
284f4730 JB |
4253 | /* Store into *addr a value nonzero if terminal input chars are available. |
4254 | Serves the purpose of ioctl (0, FIONREAD, addr) | |
4255 | but works even if FIONREAD does not exist. | |
4256 | (In fact, this may actually read some input.) */ | |
4257 | ||
4258 | static void | |
4259 | get_input_pending (addr) | |
4260 | int *addr; | |
4261 | { | |
4262 | /* First of all, have we already counted some input? */ | |
4263 | *addr = !NILP (Vquit_flag) || readable_events (); | |
4264 | ||
4265 | /* If input is being read as it arrives, and we have none, there is none. */ | |
4266 | if (*addr > 0 || (interrupt_input && ! interrupts_deferred)) | |
4267 | return; | |
4268 | ||
4269 | /* Try to read some input and see how much we get. */ | |
4270 | gobble_input (0); | |
4271 | *addr = !NILP (Vquit_flag) || readable_events (); | |
4272 | } | |
4273 | ||
81931ba1 | 4274 | /* Interface to read_avail_input, blocking SIGIO or SIGALRM if necessary. */ |
284f4730 JB |
4275 | |
4276 | int | |
4277 | gobble_input (expected) | |
4278 | int expected; | |
4279 | { | |
4280 | #ifndef VMS | |
4281 | #ifdef SIGIO | |
4282 | if (interrupt_input) | |
4283 | { | |
32676c08 | 4284 | SIGMASKTYPE mask; |
e065a56e | 4285 | mask = sigblockx (SIGIO); |
284f4730 | 4286 | read_avail_input (expected); |
e065a56e | 4287 | sigsetmask (mask); |
284f4730 JB |
4288 | } |
4289 | else | |
81931ba1 RS |
4290 | #ifdef POLL_FOR_INPUT |
4291 | if (read_socket_hook && !interrupt_input && poll_suppress_count == 0) | |
4292 | { | |
4293 | SIGMASKTYPE mask; | |
4294 | mask = sigblockx (SIGALRM); | |
4295 | read_avail_input (expected); | |
4296 | sigsetmask (mask); | |
4297 | } | |
4298 | else | |
87485d6f | 4299 | #endif |
284f4730 JB |
4300 | #endif |
4301 | read_avail_input (expected); | |
4302 | #endif | |
4303 | } | |
a8015ab5 | 4304 | |
241ceaf7 RS |
4305 | /* Put a buffer_switch_event in the buffer |
4306 | so that read_key_sequence will notice the new current buffer. */ | |
4307 | ||
a8015ab5 KH |
4308 | record_asynch_buffer_change () |
4309 | { | |
4310 | struct input_event event; | |
a30f0615 RS |
4311 | Lisp_Object tem; |
4312 | ||
a8015ab5 KH |
4313 | event.kind = buffer_switch_event; |
4314 | event.frame_or_window = Qnil; | |
241ceaf7 | 4315 | |
f65e6f7d | 4316 | #ifdef subprocesses |
a30f0615 RS |
4317 | /* We don't need a buffer-switch event unless Emacs is waiting for input. |
4318 | The purpose of the event is to make read_key_sequence look up the | |
4319 | keymaps again. If we aren't in read_key_sequence, we don't need one, | |
4320 | and the event could cause trouble by messing up (input-pending-p). */ | |
4321 | tem = Fwaiting_for_user_input_p (); | |
4322 | if (NILP (tem)) | |
4323 | return; | |
f65e6f7d RS |
4324 | #else |
4325 | /* We never need these events if we have no asynchronous subprocesses. */ | |
4326 | return; | |
4327 | #endif | |
a30f0615 | 4328 | |
241ceaf7 RS |
4329 | /* Make sure no interrupt happens while storing the event. */ |
4330 | #ifdef SIGIO | |
4331 | if (interrupt_input) | |
4332 | { | |
4333 | SIGMASKTYPE mask; | |
4334 | mask = sigblockx (SIGIO); | |
4335 | kbd_buffer_store_event (&event); | |
4336 | sigsetmask (mask); | |
4337 | } | |
4338 | else | |
4339 | #endif | |
4340 | { | |
4341 | stop_polling (); | |
4342 | kbd_buffer_store_event (&event); | |
4343 | start_polling (); | |
4344 | } | |
a8015ab5 | 4345 | } |
284f4730 JB |
4346 | \f |
4347 | #ifndef VMS | |
4348 | ||
4349 | /* Read any terminal input already buffered up by the system | |
4350 | into the kbd_buffer, but do not wait. | |
4351 | ||
4352 | EXPECTED should be nonzero if the caller knows there is some input. | |
4353 | ||
4354 | Except on VMS, all input is read by this function. | |
4355 | If interrupt_input is nonzero, this function MUST be called | |
4356 | only when SIGIO is blocked. | |
4357 | ||
4358 | Returns the number of keyboard chars read, or -1 meaning | |
4359 | this is a bad time to try to read input. */ | |
4360 | ||
4361 | static int | |
4362 | read_avail_input (expected) | |
4363 | int expected; | |
4364 | { | |
4365 | struct input_event buf[KBD_BUFFER_SIZE]; | |
4366 | register int i; | |
4367 | int nread; | |
4368 | ||
4369 | if (read_socket_hook) | |
4370 | /* No need for FIONREAD or fcntl; just say don't wait. */ | |
437f6112 RS |
4371 | nread = (*read_socket_hook) (input_fd, buf, KBD_BUFFER_SIZE, |
4372 | expected, expected); | |
284f4730 JB |
4373 | else |
4374 | { | |
17270835 RS |
4375 | /* Using KBD_BUFFER_SIZE - 1 here avoids reading more than |
4376 | the kbd_buffer can really hold. That may prevent loss | |
4377 | of characters on some systems when input is stuffed at us. */ | |
4378 | unsigned char cbuf[KBD_BUFFER_SIZE - 1]; | |
58788063 | 4379 | int n_to_read; |
284f4730 | 4380 | |
58788063 | 4381 | /* Determine how many characters we should *try* to read. */ |
bc536d84 RS |
4382 | #ifdef WINDOWSNT |
4383 | return 0; | |
4384 | #else /* not WINDOWSNT */ | |
80e4aa30 | 4385 | #ifdef MSDOS |
58788063 RS |
4386 | n_to_read = dos_keysns (); |
4387 | if (n_to_read == 0) | |
4388 | return 0; | |
c3a2738c | 4389 | #else /* not MSDOS */ |
284f4730 JB |
4390 | #ifdef FIONREAD |
4391 | /* Find out how much input is available. */ | |
437f6112 | 4392 | if (ioctl (input_fd, FIONREAD, &n_to_read) < 0) |
284f4730 JB |
4393 | /* Formerly simply reported no input, but that sometimes led to |
4394 | a failure of Emacs to terminate. | |
4395 | SIGHUP seems appropriate if we can't reach the terminal. */ | |
e4535288 RS |
4396 | /* ??? Is it really right to send the signal just to this process |
4397 | rather than to the whole process group? | |
4398 | Perhaps on systems with FIONREAD Emacs is alone in its group. */ | |
284f4730 | 4399 | kill (getpid (), SIGHUP); |
58788063 | 4400 | if (n_to_read == 0) |
284f4730 | 4401 | return 0; |
58788063 RS |
4402 | if (n_to_read > sizeof cbuf) |
4403 | n_to_read = sizeof cbuf; | |
284f4730 | 4404 | #else /* no FIONREAD */ |
0c04a67e | 4405 | #if defined (USG) || defined (DGUX) |
284f4730 | 4406 | /* Read some input if available, but don't wait. */ |
58788063 | 4407 | n_to_read = sizeof cbuf; |
437f6112 | 4408 | fcntl (input_fd, F_SETFL, O_NDELAY); |
284f4730 JB |
4409 | #else |
4410 | you lose; | |
4411 | #endif | |
4412 | #endif | |
80e4aa30 | 4413 | #endif /* not MSDOS */ |
bc536d84 | 4414 | #endif /* not WINDOWSNT */ |
284f4730 | 4415 | |
58788063 RS |
4416 | /* Now read; for one reason or another, this will not block. |
4417 | NREAD is set to the number of chars read. */ | |
9134775b | 4418 | do |
284f4730 | 4419 | { |
80e4aa30 | 4420 | #ifdef MSDOS |
0c04a67e | 4421 | cbuf[0] = dos_keyread (); |
80e4aa30 RS |
4422 | nread = 1; |
4423 | #else | |
437f6112 | 4424 | nread = read (input_fd, cbuf, n_to_read); |
80e4aa30 | 4425 | #endif |
762f2b92 | 4426 | #if defined (AIX) && (! defined (aix386) && defined (_BSD)) |
284f4730 JB |
4427 | /* The kernel sometimes fails to deliver SIGHUP for ptys. |
4428 | This looks incorrect, but it isn't, because _BSD causes | |
4429 | O_NDELAY to be defined in fcntl.h as O_NONBLOCK, | |
4430 | and that causes a value other than 0 when there is no input. */ | |
854f3a54 | 4431 | if (nread == 0) |
80e4aa30 | 4432 | kill (0, SIGHUP); |
284f4730 | 4433 | #endif |
9134775b | 4434 | } |
791587ee KH |
4435 | while ( |
4436 | /* We used to retry the read if it was interrupted. | |
4437 | But this does the wrong thing when O_NDELAY causes | |
4438 | an EAGAIN error. Does anybody know of a situation | |
4439 | where a retry is actually needed? */ | |
4440 | #if 0 | |
4441 | nread < 0 && (errno == EAGAIN | |
6aec06f5 | 4442 | #ifdef EFAULT |
9134775b | 4443 | || errno == EFAULT |
80e4aa30 | 4444 | #endif |
284f4730 | 4445 | #ifdef EBADSLT |
9134775b | 4446 | || errno == EBADSLT |
284f4730 | 4447 | #endif |
791587ee KH |
4448 | ) |
4449 | #else | |
4450 | 0 | |
4451 | #endif | |
4452 | ); | |
284f4730 JB |
4453 | |
4454 | #ifndef FIONREAD | |
02c2c53f | 4455 | #if defined (USG) || defined (DGUX) |
437f6112 | 4456 | fcntl (input_fd, F_SETFL, 0); |
02c2c53f | 4457 | #endif /* USG or DGUX */ |
284f4730 JB |
4458 | #endif /* no FIONREAD */ |
4459 | for (i = 0; i < nread; i++) | |
4460 | { | |
4461 | buf[i].kind = ascii_keystroke; | |
86e5706b | 4462 | buf[i].modifiers = 0; |
b04904fb | 4463 | if (meta_key == 1 && (cbuf[i] & 0x80)) |
86e5706b | 4464 | buf[i].modifiers = meta_modifier; |
b04904fb RS |
4465 | if (meta_key != 2) |
4466 | cbuf[i] &= ~0x80; | |
f3e59d5e KH |
4467 | |
4468 | buf[i].code = cbuf[i]; | |
7b4aedb9 | 4469 | #ifdef MULTI_FRAME |
18cd2eeb | 4470 | XSETFRAME (buf[i].frame_or_window, selected_frame); |
7b4aedb9 JB |
4471 | #else |
4472 | buf[i].frame_or_window = Qnil; | |
4473 | #endif | |
284f4730 JB |
4474 | } |
4475 | } | |
4476 | ||
4477 | /* Scan the chars for C-g and store them in kbd_buffer. */ | |
4478 | for (i = 0; i < nread; i++) | |
4479 | { | |
4480 | kbd_buffer_store_event (&buf[i]); | |
4481 | /* Don't look at input that follows a C-g too closely. | |
4482 | This reduces lossage due to autorepeat on C-g. */ | |
4483 | if (buf[i].kind == ascii_keystroke | |
9343ab07 | 4484 | && buf[i].code == quit_char) |
284f4730 JB |
4485 | break; |
4486 | } | |
4487 | ||
4488 | return nread; | |
4489 | } | |
4490 | #endif /* not VMS */ | |
4491 | \f | |
4492 | #ifdef SIGIO /* for entire page */ | |
4493 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
4494 | ||
2ce30ea2 | 4495 | SIGTYPE |
284f4730 JB |
4496 | input_available_signal (signo) |
4497 | int signo; | |
4498 | { | |
4499 | /* Must preserve main program's value of errno. */ | |
4500 | int old_errno = errno; | |
4501 | #ifdef BSD4_1 | |
4502 | extern int select_alarmed; | |
4503 | #endif | |
4504 | ||
4505 | #ifdef USG | |
4506 | /* USG systems forget handlers when they are used; | |
4507 | must reestablish each time */ | |
4508 | signal (signo, input_available_signal); | |
4509 | #endif /* USG */ | |
4510 | ||
4511 | #ifdef BSD4_1 | |
4512 | sigisheld (SIGIO); | |
4513 | #endif | |
4514 | ||
ffd56f97 JB |
4515 | if (input_available_clear_time) |
4516 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
284f4730 JB |
4517 | |
4518 | while (1) | |
4519 | { | |
4520 | int nread; | |
4521 | nread = read_avail_input (1); | |
4522 | /* -1 means it's not ok to read the input now. | |
4523 | UNBLOCK_INPUT will read it later; now, avoid infinite loop. | |
4524 | 0 means there was no keyboard input available. */ | |
4525 | if (nread <= 0) | |
4526 | break; | |
4527 | ||
4528 | #ifdef BSD4_1 | |
4529 | select_alarmed = 1; /* Force the select emulator back to life */ | |
4530 | #endif | |
4531 | } | |
4532 | ||
4533 | #ifdef BSD4_1 | |
4534 | sigfree (); | |
4535 | #endif | |
4536 | errno = old_errno; | |
4537 | } | |
4538 | #endif /* SIGIO */ | |
ad163903 JB |
4539 | |
4540 | /* Send ourselves a SIGIO. | |
4541 | ||
4542 | This function exists so that the UNBLOCK_INPUT macro in | |
4543 | blockinput.h can have some way to take care of input we put off | |
4544 | dealing with, without assuming that every file which uses | |
4545 | UNBLOCK_INPUT also has #included the files necessary to get SIGIO. */ | |
4546 | void | |
4547 | reinvoke_input_signal () | |
4548 | { | |
df0f2ba1 | 4549 | #ifdef SIGIO |
ad163903 JB |
4550 | kill (0, SIGIO); |
4551 | #endif | |
4552 | } | |
4553 | ||
4554 | ||
284f4730 JB |
4555 | \f |
4556 | /* Return the prompt-string of a sparse keymap. | |
4557 | This is the first element which is a string. | |
4558 | Return nil if there is none. */ | |
4559 | ||
4560 | Lisp_Object | |
4561 | map_prompt (map) | |
4562 | Lisp_Object map; | |
4563 | { | |
4564 | while (CONSP (map)) | |
4565 | { | |
4566 | register Lisp_Object tem; | |
4567 | tem = Fcar (map); | |
8c18cbfb | 4568 | if (STRINGP (tem)) |
284f4730 JB |
4569 | return tem; |
4570 | map = Fcdr (map); | |
4571 | } | |
4572 | return Qnil; | |
4573 | } | |
4574 | ||
b7c49376 RS |
4575 | static void menu_bar_item (); |
4576 | static void menu_bar_one_keymap (); | |
4577 | ||
4578 | /* These variables hold the vector under construction within | |
4579 | menu_bar_items and its subroutines, and the current index | |
4580 | for storing into that vector. */ | |
4581 | static Lisp_Object menu_bar_items_vector; | |
9343ab07 | 4582 | static int menu_bar_items_index; |
5ec75a55 | 4583 | |
b7c49376 RS |
4584 | /* Return a vector of menu items for a menu bar, appropriate |
4585 | to the current buffer. Each item has three elements in the vector: | |
f5e09c8b | 4586 | KEY STRING MAPLIST. |
b7c49376 RS |
4587 | |
4588 | OLD is an old vector we can optionally reuse, or nil. */ | |
5ec75a55 RS |
4589 | |
4590 | Lisp_Object | |
b7c49376 RS |
4591 | menu_bar_items (old) |
4592 | Lisp_Object old; | |
5ec75a55 RS |
4593 | { |
4594 | /* The number of keymaps we're scanning right now, and the number of | |
4595 | keymaps we have allocated space for. */ | |
4596 | int nmaps; | |
4597 | ||
4598 | /* maps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] | |
4599 | in the current keymaps, or nil where it is not a prefix. */ | |
4600 | Lisp_Object *maps; | |
4601 | ||
9f9c0e27 | 4602 | Lisp_Object def, tem, tail; |
5ec75a55 RS |
4603 | |
4604 | Lisp_Object result; | |
4605 | ||
4606 | int mapno; | |
47d319aa | 4607 | Lisp_Object oquit; |
5ec75a55 | 4608 | |
b7c49376 RS |
4609 | int i; |
4610 | ||
4611 | struct gcpro gcpro1; | |
4612 | ||
db60d856 JB |
4613 | /* In order to build the menus, we need to call the keymap |
4614 | accessors. They all call QUIT. But this function is called | |
4615 | during redisplay, during which a quit is fatal. So inhibit | |
47d319aa RS |
4616 | quitting while building the menus. |
4617 | We do this instead of specbind because (1) errors will clear it anyway | |
4618 | and (2) this avoids risk of specpdl overflow. */ | |
4619 | oquit = Vinhibit_quit; | |
df0f2ba1 | 4620 | Vinhibit_quit = Qt; |
db60d856 | 4621 | |
b7c49376 RS |
4622 | if (!NILP (old)) |
4623 | menu_bar_items_vector = old; | |
4624 | else | |
4625 | menu_bar_items_vector = Fmake_vector (make_number (24), Qnil); | |
4626 | menu_bar_items_index = 0; | |
4627 | ||
4628 | GCPRO1 (menu_bar_items_vector); | |
4629 | ||
5ec75a55 RS |
4630 | /* Build our list of keymaps. |
4631 | If we recognize a function key and replace its escape sequence in | |
4632 | keybuf with its symbol, or if the sequence starts with a mouse | |
4633 | click and we need to switch buffers, we jump back here to rebuild | |
4634 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 4635 | { |
5ec75a55 RS |
4636 | Lisp_Object *tmaps; |
4637 | ||
217258d5 | 4638 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ |
d0a49716 | 4639 | if (!NILP (Voverriding_local_map_menu_flag)) |
9dd3131c | 4640 | { |
217258d5 KH |
4641 | /* Yes, use them (if non-nil) as well as the global map. */ |
4642 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
4643 | nmaps = 0; | |
4644 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
4645 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
4646 | if (!NILP (Voverriding_local_map)) | |
4647 | maps[nmaps++] = Voverriding_local_map; | |
9dd3131c RS |
4648 | } |
4649 | else | |
4650 | { | |
d0a49716 | 4651 | /* No, so use major and minor mode keymaps. */ |
217258d5 KH |
4652 | nmaps = current_minor_maps (NULL, &tmaps); |
4653 | maps = (Lisp_Object *) alloca ((nmaps + 2) * sizeof (maps[0])); | |
4654 | bcopy (tmaps, maps, nmaps * sizeof (maps[0])); | |
5ec75a55 | 4655 | #ifdef USE_TEXT_PROPERTIES |
217258d5 | 4656 | maps[nmaps++] = get_local_map (PT, current_buffer); |
5ec75a55 | 4657 | #else |
217258d5 | 4658 | maps[nmaps++] = current_buffer->keymap; |
5ec75a55 | 4659 | #endif |
9dd3131c | 4660 | } |
217258d5 | 4661 | maps[nmaps++] = current_global_map; |
5ec75a55 RS |
4662 | } |
4663 | ||
4664 | /* Look up in each map the dummy prefix key `menu-bar'. */ | |
4665 | ||
4666 | result = Qnil; | |
4667 | ||
e58aa385 | 4668 | for (mapno = nmaps - 1; mapno >= 0; mapno--) |
5ec75a55 RS |
4669 | { |
4670 | if (! NILP (maps[mapno])) | |
e74fbc70 | 4671 | def = get_keyelt (access_keymap (maps[mapno], Qmenu_bar, 1, 0)); |
5ec75a55 RS |
4672 | else |
4673 | def = Qnil; | |
4674 | ||
4675 | tem = Fkeymapp (def); | |
4676 | if (!NILP (tem)) | |
b7c49376 | 4677 | menu_bar_one_keymap (def); |
5ec75a55 RS |
4678 | } |
4679 | ||
b7c49376 RS |
4680 | /* Move to the end those items that should be at the end. */ |
4681 | ||
9f9c0e27 RS |
4682 | for (tail = Vmenu_bar_final_items; CONSP (tail); tail = XCONS (tail)->cdr) |
4683 | { | |
b7c49376 RS |
4684 | int i; |
4685 | int end = menu_bar_items_index; | |
4686 | ||
4687 | for (i = 0; i < end; i += 3) | |
4688 | if (EQ (XCONS (tail)->car, XVECTOR (menu_bar_items_vector)->contents[i])) | |
4689 | { | |
0301268e RS |
4690 | Lisp_Object tem0, tem1, tem2; |
4691 | /* Move the item at index I to the end, | |
4692 | shifting all the others forward. */ | |
4693 | tem0 = XVECTOR (menu_bar_items_vector)->contents[i + 0]; | |
4694 | tem1 = XVECTOR (menu_bar_items_vector)->contents[i + 1]; | |
4695 | tem2 = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
4696 | if (end > i + 3) | |
4697 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 3], | |
4698 | &XVECTOR (menu_bar_items_vector)->contents[i], | |
4699 | (end - i - 3) * sizeof (Lisp_Object)); | |
4700 | XVECTOR (menu_bar_items_vector)->contents[end - 3] = tem0; | |
4701 | XVECTOR (menu_bar_items_vector)->contents[end - 2] = tem1; | |
4702 | XVECTOR (menu_bar_items_vector)->contents[end - 1] = tem2; | |
4703 | break; | |
b7c49376 RS |
4704 | } |
4705 | } | |
9f9c0e27 | 4706 | |
b7c49376 RS |
4707 | /* Add nil, nil, nil at the end. */ |
4708 | i = menu_bar_items_index; | |
4709 | if (i + 3 > XVECTOR (menu_bar_items_vector)->size) | |
4710 | { | |
4711 | Lisp_Object tem; | |
4712 | int newsize = 2 * i; | |
4713 | tem = Fmake_vector (make_number (2 * i), Qnil); | |
4714 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
4715 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
4716 | menu_bar_items_vector = tem; | |
9f9c0e27 | 4717 | } |
b7c49376 RS |
4718 | /* Add this item. */ |
4719 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
4720 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
4721 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
4722 | menu_bar_items_index = i; | |
a73c5e29 | 4723 | |
47d319aa | 4724 | Vinhibit_quit = oquit; |
b7c49376 RS |
4725 | UNGCPRO; |
4726 | return menu_bar_items_vector; | |
5ec75a55 RS |
4727 | } |
4728 | \f | |
4729 | /* Scan one map KEYMAP, accumulating any menu items it defines | |
f5e09c8b | 4730 | in menu_bar_items_vector. */ |
5ec75a55 | 4731 | |
b7c49376 RS |
4732 | static void |
4733 | menu_bar_one_keymap (keymap) | |
4734 | Lisp_Object keymap; | |
5ec75a55 RS |
4735 | { |
4736 | Lisp_Object tail, item, key, binding, item_string, table; | |
4737 | ||
4738 | /* Loop over all keymap entries that have menu strings. */ | |
8c18cbfb | 4739 | for (tail = keymap; CONSP (tail); tail = XCONS (tail)->cdr) |
5ec75a55 RS |
4740 | { |
4741 | item = XCONS (tail)->car; | |
8c18cbfb | 4742 | if (CONSP (item)) |
5ec75a55 RS |
4743 | { |
4744 | key = XCONS (item)->car; | |
4745 | binding = XCONS (item)->cdr; | |
8c18cbfb | 4746 | if (CONSP (binding)) |
5ec75a55 RS |
4747 | { |
4748 | item_string = XCONS (binding)->car; | |
8c18cbfb | 4749 | if (STRINGP (item_string)) |
b7c49376 | 4750 | menu_bar_item (key, item_string, Fcdr (binding)); |
5ec75a55 | 4751 | } |
e58aa385 | 4752 | else if (EQ (binding, Qundefined)) |
8aa034e1 | 4753 | menu_bar_item (key, Qnil, binding); |
5ec75a55 | 4754 | } |
8c18cbfb | 4755 | else if (VECTORP (item)) |
5ec75a55 RS |
4756 | { |
4757 | /* Loop over the char values represented in the vector. */ | |
4758 | int len = XVECTOR (item)->size; | |
4759 | int c; | |
4760 | for (c = 0; c < len; c++) | |
4761 | { | |
4762 | Lisp_Object character; | |
bb9e9bed | 4763 | XSETFASTINT (character, c); |
5ec75a55 | 4764 | binding = XVECTOR (item)->contents[c]; |
8c18cbfb | 4765 | if (CONSP (binding)) |
5ec75a55 RS |
4766 | { |
4767 | item_string = XCONS (binding)->car; | |
8c18cbfb | 4768 | if (STRINGP (item_string)) |
b7c49376 | 4769 | menu_bar_item (key, item_string, Fcdr (binding)); |
5ec75a55 | 4770 | } |
e58aa385 | 4771 | else if (EQ (binding, Qundefined)) |
8aa034e1 | 4772 | menu_bar_item (key, Qnil, binding); |
5ec75a55 RS |
4773 | } |
4774 | } | |
4775 | } | |
5ec75a55 RS |
4776 | } |
4777 | ||
047a8ea7 RS |
4778 | /* This is used as the handler when calling internal_condition_case_1. */ |
4779 | ||
4780 | static Lisp_Object | |
4781 | menu_bar_item_1 (arg) | |
4782 | Lisp_Object arg; | |
4783 | { | |
4784 | return Qnil; | |
4785 | } | |
4786 | ||
f5e09c8b RS |
4787 | /* Add one item to menu_bar_items_vector, for KEY, ITEM_STRING and DEF. |
4788 | If there's already an item for KEY, add this DEF to it. */ | |
4789 | ||
b7c49376 RS |
4790 | static void |
4791 | menu_bar_item (key, item_string, def) | |
4792 | Lisp_Object key, item_string, def; | |
5ec75a55 | 4793 | { |
e58aa385 | 4794 | Lisp_Object tem; |
5ec75a55 | 4795 | Lisp_Object enabled; |
b7c49376 | 4796 | int i; |
5ec75a55 | 4797 | |
e58aa385 RS |
4798 | if (EQ (def, Qundefined)) |
4799 | { | |
f5e09c8b | 4800 | /* If a map has an explicit `undefined' as definition, |
e58aa385 | 4801 | discard any previously made menu bar item. */ |
b7c49376 RS |
4802 | |
4803 | for (i = 0; i < menu_bar_items_index; i += 3) | |
4804 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) | |
4805 | { | |
4806 | if (menu_bar_items_index > i + 3) | |
4807 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 3], | |
4808 | &XVECTOR (menu_bar_items_vector)->contents[i], | |
4809 | (menu_bar_items_index - i - 3) * sizeof (Lisp_Object)); | |
4810 | menu_bar_items_index -= 3; | |
4811 | return; | |
4812 | } | |
8aa034e1 RS |
4813 | |
4814 | /* If there's no definition for this key yet, | |
4815 | just ignore `undefined'. */ | |
4816 | return; | |
e58aa385 RS |
4817 | } |
4818 | ||
5ec75a55 RS |
4819 | /* See if this entry is enabled. */ |
4820 | enabled = Qt; | |
4821 | ||
8c18cbfb | 4822 | if (SYMBOLP (def)) |
5ec75a55 RS |
4823 | { |
4824 | /* No property, or nil, means enable. | |
4825 | Otherwise, enable if value is not nil. */ | |
4826 | tem = Fget (def, Qmenu_enable); | |
4827 | if (!NILP (tem)) | |
047a8ea7 RS |
4828 | /* (condition-case nil (eval tem) |
4829 | (error nil)) */ | |
4830 | enabled = internal_condition_case_1 (Feval, tem, Qerror, | |
4831 | menu_bar_item_1); | |
5ec75a55 RS |
4832 | } |
4833 | ||
b7c49376 RS |
4834 | /* Ignore this item if it's not enabled. */ |
4835 | if (NILP (enabled)) | |
4836 | return; | |
5ec75a55 | 4837 | |
f5e09c8b | 4838 | /* Find any existing item for this KEY. */ |
b7c49376 RS |
4839 | for (i = 0; i < menu_bar_items_index; i += 3) |
4840 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) | |
4841 | break; | |
4842 | ||
f5e09c8b | 4843 | /* If we did not find this KEY, add it at the end. */ |
b7c49376 RS |
4844 | if (i == menu_bar_items_index) |
4845 | { | |
4846 | /* If vector is too small, get a bigger one. */ | |
4847 | if (i + 3 > XVECTOR (menu_bar_items_vector)->size) | |
4848 | { | |
4849 | Lisp_Object tem; | |
4850 | int newsize = 2 * i; | |
4851 | tem = Fmake_vector (make_number (2 * i), Qnil); | |
4852 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
4853 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
4854 | menu_bar_items_vector = tem; | |
4855 | } | |
4856 | /* Add this item. */ | |
4857 | XVECTOR (menu_bar_items_vector)->contents[i++] = key; | |
4858 | XVECTOR (menu_bar_items_vector)->contents[i++] = item_string; | |
f5e09c8b | 4859 | XVECTOR (menu_bar_items_vector)->contents[i++] = Fcons (def, Qnil); |
b7c49376 RS |
4860 | menu_bar_items_index = i; |
4861 | } | |
f5e09c8b RS |
4862 | /* We did find an item for this KEY. Add DEF to its list of maps. */ |
4863 | else | |
4864 | { | |
4865 | Lisp_Object old; | |
4866 | old = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
4867 | XVECTOR (menu_bar_items_vector)->contents[i + 2] = Fcons (def, old); | |
4868 | } | |
5ec75a55 RS |
4869 | } |
4870 | \f | |
dcc408a0 RS |
4871 | /* Read a character using menus based on maps in the array MAPS. |
4872 | NMAPS is the length of MAPS. Return nil if there are no menus in the maps. | |
4873 | Return t if we displayed a menu but the user rejected it. | |
7d6de002 RS |
4874 | |
4875 | PREV_EVENT is the previous input event, or nil if we are reading | |
4876 | the first event of a key sequence. | |
4877 | ||
83d68044 | 4878 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 4879 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 4880 | USED_MOUSE_MENU is null, we don't dereference it. |
284f4730 JB |
4881 | |
4882 | The prompting is done based on the prompt-string of the map | |
df0f2ba1 | 4883 | and the strings associated with various map elements. |
8150596a RS |
4884 | |
4885 | This can be done with X menus or with menus put in the minibuf. | |
4886 | These are done in different ways, depending on how the input will be read. | |
4887 | Menus using X are done after auto-saving in read-char, getting the input | |
4888 | event from Fx_popup_menu; menus using the minibuf use read_char recursively | |
4889 | and do auto-saving in the inner call of read_char. */ | |
284f4730 | 4890 | |
7617111f | 4891 | static Lisp_Object |
8150596a | 4892 | read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu) |
7d6de002 RS |
4893 | int nmaps; |
4894 | Lisp_Object *maps; | |
4895 | Lisp_Object prev_event; | |
4896 | int *used_mouse_menu; | |
284f4730 | 4897 | { |
7d6de002 RS |
4898 | int mapno; |
4899 | register Lisp_Object name; | |
7d6de002 RS |
4900 | Lisp_Object rest, vector; |
4901 | ||
6569cc8d JB |
4902 | if (used_mouse_menu) |
4903 | *used_mouse_menu = 0; | |
284f4730 JB |
4904 | |
4905 | /* Use local over global Menu maps */ | |
4906 | ||
7d6de002 RS |
4907 | if (! menu_prompting) |
4908 | return Qnil; | |
4909 | ||
03361bcc RS |
4910 | /* Optionally disregard all but the global map. */ |
4911 | if (inhibit_local_menu_bar_menus) | |
4912 | { | |
4913 | maps += (nmaps - 1); | |
4914 | nmaps = 1; | |
4915 | } | |
4916 | ||
7d6de002 RS |
4917 | /* Get the menu name from the first map that has one (a prompt string). */ |
4918 | for (mapno = 0; mapno < nmaps; mapno++) | |
4919 | { | |
4920 | name = map_prompt (maps[mapno]); | |
4921 | if (!NILP (name)) | |
4922 | break; | |
4923 | } | |
284f4730 | 4924 | |
7d6de002 | 4925 | /* If we don't have any menus, just read a character normally. */ |
dbc4e1c1 | 4926 | if (mapno >= nmaps) |
7d6de002 RS |
4927 | return Qnil; |
4928 | ||
1f5b1641 | 4929 | #ifdef HAVE_MENUS |
7d6de002 RS |
4930 | /* If we got to this point via a mouse click, |
4931 | use a real menu for mouse selection. */ | |
5a8d99e0 KH |
4932 | if (EVENT_HAS_PARAMETERS (prev_event) |
4933 | && !EQ (XCONS (prev_event)->car, Qmenu_bar)) | |
7d6de002 RS |
4934 | { |
4935 | /* Display the menu and get the selection. */ | |
4936 | Lisp_Object *realmaps | |
4937 | = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object)); | |
4938 | Lisp_Object value; | |
4939 | int nmaps1 = 0; | |
4940 | ||
4941 | /* Use the maps that are not nil. */ | |
4942 | for (mapno = 0; mapno < nmaps; mapno++) | |
4943 | if (!NILP (maps[mapno])) | |
4944 | realmaps[nmaps1++] = maps[mapno]; | |
4945 | ||
4946 | value = Fx_popup_menu (prev_event, Flist (nmaps1, realmaps)); | |
663258f2 JB |
4947 | if (CONSP (value)) |
4948 | { | |
68f297c5 RS |
4949 | Lisp_Object tem; |
4950 | ||
4951 | /* If we got multiple events, unread all but | |
4952 | the first. | |
4953 | There is no way to prevent those unread events | |
4954 | from showing up later in last_nonmenu_event. | |
4955 | So turn symbol and integer events into lists, | |
4956 | to indicate that they came from a mouse menu, | |
4957 | so that when present in last_nonmenu_event | |
4958 | they won't confuse things. */ | |
4959 | for (tem = XCONS (value)->cdr; !NILP (tem); | |
4960 | tem = XCONS (tem)->cdr) | |
4961 | if (SYMBOLP (XCONS (tem)->car) | |
4962 | || INTEGERP (XCONS (tem)->car)) | |
4963 | XCONS (tem)->car | |
4964 | = Fcons (XCONS (tem)->car, Qnil); | |
4965 | ||
663258f2 JB |
4966 | /* If we got more than one event, put all but the first |
4967 | onto this list to be read later. | |
4968 | Return just the first event now. */ | |
24597608 RS |
4969 | Vunread_command_events |
4970 | = nconc2 (XCONS (value)->cdr, Vunread_command_events); | |
663258f2 JB |
4971 | value = XCONS (value)->car; |
4972 | } | |
1c90c381 | 4973 | else if (NILP (value)) |
dcc408a0 | 4974 | value = Qt; |
6569cc8d JB |
4975 | if (used_mouse_menu) |
4976 | *used_mouse_menu = 1; | |
7d6de002 RS |
4977 | return value; |
4978 | } | |
1f5b1641 | 4979 | #endif /* HAVE_MENUS */ |
8150596a RS |
4980 | return Qnil ; |
4981 | } | |
4982 | ||
4983 | static Lisp_Object | |
24597608 | 4984 | read_char_minibuf_menu_prompt (commandflag, nmaps, maps) |
8150596a RS |
4985 | int commandflag ; |
4986 | int nmaps; | |
4987 | Lisp_Object *maps; | |
4988 | { | |
4989 | int mapno; | |
4990 | register Lisp_Object name; | |
4991 | int nlength; | |
4992 | int width = FRAME_WIDTH (selected_frame) - 4; | |
4993 | char *menu = (char *) alloca (width + 4); | |
4994 | int idx = -1; | |
9fdbfdf8 | 4995 | int nobindings = 1; |
8150596a RS |
4996 | Lisp_Object rest, vector; |
4997 | ||
4998 | if (! menu_prompting) | |
4999 | return Qnil; | |
5000 | ||
5001 | /* Get the menu name from the first map that has one (a prompt string). */ | |
5002 | for (mapno = 0; mapno < nmaps; mapno++) | |
5003 | { | |
5004 | name = map_prompt (maps[mapno]); | |
5005 | if (!NILP (name)) | |
5006 | break; | |
5007 | } | |
5008 | ||
5009 | /* If we don't have any menus, just read a character normally. */ | |
5010 | if (mapno >= nmaps) | |
5011 | return Qnil; | |
284f4730 JB |
5012 | |
5013 | /* Prompt string always starts with map's prompt, and a space. */ | |
5014 | strcpy (menu, XSTRING (name)->data); | |
5015 | nlength = XSTRING (name)->size; | |
7d6de002 | 5016 | menu[nlength++] = ':'; |
284f4730 JB |
5017 | menu[nlength++] = ' '; |
5018 | menu[nlength] = 0; | |
5019 | ||
7d6de002 RS |
5020 | /* Start prompting at start of first map. */ |
5021 | mapno = 0; | |
5022 | rest = maps[mapno]; | |
284f4730 JB |
5023 | |
5024 | /* Present the documented bindings, a line at a time. */ | |
5025 | while (1) | |
5026 | { | |
5027 | int notfirst = 0; | |
5028 | int i = nlength; | |
5029 | Lisp_Object obj; | |
5030 | int ch; | |
8066f1a1 | 5031 | Lisp_Object orig_defn_macro; |
284f4730 | 5032 | |
284f4730 | 5033 | /* Loop over elements of map. */ |
7d6de002 | 5034 | while (i < width) |
284f4730 | 5035 | { |
7d6de002 | 5036 | Lisp_Object s, elt; |
284f4730 | 5037 | |
7d6de002 RS |
5038 | /* If reached end of map, start at beginning of next map. */ |
5039 | if (NILP (rest)) | |
5040 | { | |
5041 | mapno++; | |
5042 | /* At end of last map, wrap around to first map if just starting, | |
5043 | or end this line if already have something on it. */ | |
5044 | if (mapno == nmaps) | |
284f4730 | 5045 | { |
8150596a | 5046 | mapno = 0; |
40932d1a | 5047 | if (notfirst || nobindings) break; |
284f4730 | 5048 | } |
7d6de002 | 5049 | rest = maps[mapno]; |
284f4730 | 5050 | } |
7d6de002 RS |
5051 | |
5052 | /* Look at the next element of the map. */ | |
5053 | if (idx >= 0) | |
5054 | elt = XVECTOR (vector)->contents[idx]; | |
284f4730 | 5055 | else |
7d6de002 RS |
5056 | elt = Fcar_safe (rest); |
5057 | ||
8c18cbfb | 5058 | if (idx < 0 && VECTORP (elt)) |
284f4730 | 5059 | { |
7d6de002 RS |
5060 | /* If we found a dense table in the keymap, |
5061 | advanced past it, but start scanning its contents. */ | |
5062 | rest = Fcdr_safe (rest); | |
5063 | vector = elt; | |
5064 | idx = 0; | |
284f4730 | 5065 | } |
7d6de002 RS |
5066 | else |
5067 | { | |
5068 | /* An ordinary element. */ | |
0a2ea221 KH |
5069 | Lisp_Object event; |
5070 | ||
5071 | if (idx < 0) | |
5072 | { | |
5073 | s = Fcar_safe (Fcdr_safe (elt)); /* alist */ | |
5074 | event = Fcar_safe (elt); | |
5075 | } | |
8150596a | 5076 | else |
7d6de002 | 5077 | { |
0a2ea221 KH |
5078 | s = Fcar_safe (elt); /* vector */ |
5079 | XSETINT (event, idx); | |
5080 | } | |
5081 | ||
5082 | /* Ignore the element if it has no prompt string. */ | |
5083 | if (STRINGP (s) && INTEGERP (event)) | |
5084 | { | |
5085 | /* 1 if the char to type matches the string. */ | |
5086 | int char_matches; | |
5087 | Lisp_Object upcased_event, downcased_event; | |
5088 | Lisp_Object desc; | |
5089 | ||
5090 | upcased_event = Fupcase (event); | |
5091 | downcased_event = Fdowncase (event); | |
5092 | char_matches = (XINT (upcased_event) == XSTRING (s)->data[0] | |
5093 | || XINT (downcased_event) == XSTRING (s)->data[0]); | |
5094 | if (! char_matches) | |
5095 | desc = Fsingle_key_description (event); | |
5096 | ||
5097 | /* If we have room for the prompt string, add it to this line. | |
5098 | If this is the first on the line, always add it. */ | |
5099 | if ((XSTRING (s)->size + i + 2 | |
5100 | + (char_matches ? 0 : XSTRING (desc)->size + 3)) | |
5101 | < width | |
5102 | || !notfirst) | |
5103 | { | |
5104 | int thiswidth; | |
5105 | ||
5106 | /* Punctuate between strings. */ | |
5107 | if (notfirst) | |
5108 | { | |
5109 | strcpy (menu + i, ", "); | |
5110 | i += 2; | |
5111 | } | |
5112 | notfirst = 1; | |
5113 | nobindings = 0 ; | |
284f4730 | 5114 | |
0a2ea221 KH |
5115 | /* If the char to type doesn't match the string's |
5116 | first char, explicitly show what char to type. */ | |
5117 | if (! char_matches) | |
5118 | { | |
5119 | /* Add as much of string as fits. */ | |
5120 | thiswidth = XSTRING (desc)->size; | |
5121 | if (thiswidth + i > width) | |
5122 | thiswidth = width - i; | |
5123 | bcopy (XSTRING (desc)->data, menu + i, thiswidth); | |
5124 | i += thiswidth; | |
5125 | strcpy (menu + i, " = "); | |
5126 | i += 3; | |
5127 | } | |
5128 | ||
5129 | /* Add as much of string as fits. */ | |
5130 | thiswidth = XSTRING (s)->size; | |
5131 | if (thiswidth + i > width) | |
5132 | thiswidth = width - i; | |
5133 | bcopy (XSTRING (s)->data, menu + i, thiswidth); | |
5134 | i += thiswidth; | |
5135 | menu[i] = 0; | |
5136 | } | |
5137 | else | |
7d6de002 | 5138 | { |
0a2ea221 KH |
5139 | /* If this element does not fit, end the line now, |
5140 | and save the element for the next line. */ | |
5141 | strcpy (menu + i, "..."); | |
5142 | break; | |
7d6de002 | 5143 | } |
7d6de002 RS |
5144 | } |
5145 | ||
5146 | /* Move past this element. */ | |
8150596a | 5147 | if (idx >= 0 && idx + 1 >= XVECTOR (vector)->size) |
7d6de002 RS |
5148 | /* Handle reaching end of dense table. */ |
5149 | idx = -1; | |
5150 | if (idx >= 0) | |
5151 | idx++; | |
5152 | else | |
5153 | rest = Fcdr_safe (rest); | |
5154 | } | |
284f4730 JB |
5155 | } |
5156 | ||
5157 | /* Prompt with that and read response. */ | |
5158 | message1 (menu); | |
8150596a | 5159 | |
df0f2ba1 | 5160 | /* Make believe its not a keyboard macro in case the help char |
8150596a RS |
5161 | is pressed. Help characters are not recorded because menu prompting |
5162 | is not used on replay. | |
5163 | */ | |
c5fdd383 KH |
5164 | orig_defn_macro = current_kboard->defining_kbd_macro; |
5165 | current_kboard->defining_kbd_macro = Qnil; | |
3cb81011 KH |
5166 | do |
5167 | obj = read_char (commandflag, 0, 0, Qnil, 0); | |
8c18cbfb | 5168 | while (BUFFERP (obj)); |
c5fdd383 | 5169 | current_kboard->defining_kbd_macro = orig_defn_macro; |
284f4730 | 5170 | |
8c18cbfb | 5171 | if (!INTEGERP (obj)) |
284f4730 JB |
5172 | return obj; |
5173 | else | |
5174 | ch = XINT (obj); | |
5175 | ||
f4255cd1 | 5176 | if (! EQ (obj, menu_prompt_more_char) |
8c18cbfb | 5177 | && (!INTEGERP (menu_prompt_more_char) |
f4255cd1 | 5178 | || ! EQ (obj, make_number (Ctl (XINT (menu_prompt_more_char)))))) |
8150596a | 5179 | { |
c5fdd383 | 5180 | if (!NILP (current_kboard->defining_kbd_macro)) |
8066f1a1 | 5181 | store_kbd_macro_char (obj); |
8150596a RS |
5182 | return obj; |
5183 | } | |
5184 | /* Help char - go round again */ | |
284f4730 JB |
5185 | } |
5186 | } | |
284f4730 JB |
5187 | \f |
5188 | /* Reading key sequences. */ | |
5189 | ||
5190 | /* Follow KEY in the maps in CURRENT[0..NMAPS-1], placing its bindings | |
5191 | in DEFS[0..NMAPS-1]. Set NEXT[i] to DEFS[i] if DEFS[i] is a | |
5192 | keymap, or nil otherwise. Return the index of the first keymap in | |
5193 | which KEY has any binding, or NMAPS if no map has a binding. | |
5194 | ||
5195 | If KEY is a meta ASCII character, treat it like meta-prefix-char | |
5196 | followed by the corresponding non-meta character. Keymaps in | |
5197 | CURRENT with non-prefix bindings for meta-prefix-char become nil in | |
5198 | NEXT. | |
5199 | ||
88cb0656 JB |
5200 | If KEY has no bindings in any of the CURRENT maps, NEXT is left |
5201 | unmodified. | |
5202 | ||
569871d2 | 5203 | NEXT may be the same array as CURRENT. */ |
284f4730 JB |
5204 | |
5205 | static int | |
4e50f26a | 5206 | follow_key (key, nmaps, current, defs, next) |
284f4730 JB |
5207 | Lisp_Object key; |
5208 | Lisp_Object *current, *defs, *next; | |
5209 | int nmaps; | |
5210 | { | |
5211 | int i, first_binding; | |
569871d2 | 5212 | int did_meta = 0; |
284f4730 JB |
5213 | |
5214 | /* If KEY is a meta ASCII character, treat it like meta-prefix-char | |
569871d2 RS |
5215 | followed by the corresponding non-meta character. |
5216 | Put the results into DEFS, since we are going to alter that anyway. | |
5217 | Do not alter CURRENT or NEXT. */ | |
8c18cbfb | 5218 | if (INTEGERP (key) && (XINT (key) & CHAR_META)) |
284f4730 JB |
5219 | { |
5220 | for (i = 0; i < nmaps; i++) | |
5221 | if (! NILP (current[i])) | |
5222 | { | |
569871d2 RS |
5223 | Lisp_Object def; |
5224 | def = get_keyelt (access_keymap (current[i], | |
5225 | meta_prefix_char, 1, 0)); | |
284f4730 JB |
5226 | |
5227 | /* Note that since we pass the resulting bindings through | |
5228 | get_keymap_1, non-prefix bindings for meta-prefix-char | |
5229 | disappear. */ | |
569871d2 | 5230 | defs[i] = get_keymap_1 (def, 0, 1); |
284f4730 JB |
5231 | } |
5232 | else | |
569871d2 | 5233 | defs[i] = Qnil; |
284f4730 | 5234 | |
569871d2 | 5235 | did_meta = 1; |
18cd2eeb | 5236 | XSETINT (key, XFASTINT (key) & ~CHAR_META); |
284f4730 JB |
5237 | } |
5238 | ||
5239 | first_binding = nmaps; | |
5240 | for (i = nmaps - 1; i >= 0; i--) | |
5241 | { | |
5242 | if (! NILP (current[i])) | |
5243 | { | |
569871d2 RS |
5244 | Lisp_Object map; |
5245 | if (did_meta) | |
5246 | map = defs[i]; | |
5247 | else | |
5248 | map = current[i]; | |
5249 | ||
5250 | defs[i] = get_keyelt (access_keymap (map, key, 1, 0)); | |
284f4730 JB |
5251 | if (! NILP (defs[i])) |
5252 | first_binding = i; | |
5253 | } | |
5254 | else | |
5255 | defs[i] = Qnil; | |
5256 | } | |
5257 | ||
284f4730 | 5258 | /* Given the set of bindings we've found, produce the next set of maps. */ |
0a7f1fc0 JB |
5259 | if (first_binding < nmaps) |
5260 | for (i = 0; i < nmaps; i++) | |
f4255cd1 | 5261 | next[i] = NILP (defs[i]) ? Qnil : get_keymap_1 (defs[i], 0, 1); |
284f4730 JB |
5262 | |
5263 | return first_binding; | |
5264 | } | |
5265 | ||
df0f2ba1 | 5266 | /* Read a sequence of keys that ends with a non prefix character, |
f4255cd1 JB |
5267 | storing it in KEYBUF, a buffer of size BUFSIZE. |
5268 | Prompt with PROMPT. | |
284f4730 | 5269 | Return the length of the key sequence stored. |
dcc408a0 | 5270 | Return -1 if the user rejected a command menu. |
284f4730 | 5271 | |
f4255cd1 JB |
5272 | Echo starting immediately unless `prompt' is 0. |
5273 | ||
5274 | Where a key sequence ends depends on the currently active keymaps. | |
5275 | These include any minor mode keymaps active in the current buffer, | |
5276 | the current buffer's local map, and the global map. | |
5277 | ||
5278 | If a key sequence has no other bindings, we check Vfunction_key_map | |
5279 | to see if some trailing subsequence might be the beginning of a | |
5280 | function key's sequence. If so, we try to read the whole function | |
5281 | key, and substitute its symbolic name into the key sequence. | |
5282 | ||
fbcd35bd JB |
5283 | We ignore unbound `down-' mouse clicks. We turn unbound `drag-' and |
5284 | `double-' events into similar click events, if that would make them | |
5285 | bound. We try to turn `triple-' events first into `double-' events, | |
5286 | then into clicks. | |
f4255cd1 JB |
5287 | |
5288 | If we get a mouse click in a mode line, vertical divider, or other | |
5289 | non-text area, we treat the click as if it were prefixed by the | |
5290 | symbol denoting that area - `mode-line', `vertical-line', or | |
5291 | whatever. | |
5292 | ||
5293 | If the sequence starts with a mouse click, we read the key sequence | |
5294 | with respect to the buffer clicked on, not the current buffer. | |
284f4730 | 5295 | |
f4255cd1 JB |
5296 | If the user switches frames in the midst of a key sequence, we put |
5297 | off the switch-frame event until later; the next call to | |
5298 | read_char will return it. */ | |
48e416d4 | 5299 | |
284f4730 | 5300 | static int |
ce98e608 KH |
5301 | read_key_sequence (keybuf, bufsize, prompt, dont_downcase_last, |
5302 | can_return_switch_frame) | |
284f4730 JB |
5303 | Lisp_Object *keybuf; |
5304 | int bufsize; | |
84d91fda | 5305 | Lisp_Object prompt; |
309b0fc8 | 5306 | int dont_downcase_last; |
ce98e608 | 5307 | int can_return_switch_frame; |
284f4730 | 5308 | { |
f4255cd1 JB |
5309 | int count = specpdl_ptr - specpdl; |
5310 | ||
284f4730 JB |
5311 | /* How many keys there are in the current key sequence. */ |
5312 | int t; | |
5313 | ||
284f4730 JB |
5314 | /* The length of the echo buffer when we started reading, and |
5315 | the length of this_command_keys when we started reading. */ | |
5316 | int echo_start; | |
f4255cd1 | 5317 | int keys_start; |
284f4730 JB |
5318 | |
5319 | /* The number of keymaps we're scanning right now, and the number of | |
5320 | keymaps we have allocated space for. */ | |
5321 | int nmaps; | |
5322 | int nmaps_allocated = 0; | |
5323 | ||
284f4730 JB |
5324 | /* defs[0..nmaps-1] are the definitions of KEYBUF[0..t-1] in |
5325 | the current keymaps. */ | |
5326 | Lisp_Object *defs; | |
5327 | ||
f4255cd1 JB |
5328 | /* submaps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] |
5329 | in the current keymaps, or nil where it is not a prefix. */ | |
5330 | Lisp_Object *submaps; | |
5331 | ||
e0dff5f6 RS |
5332 | /* The local map to start out with at start of key sequence. */ |
5333 | Lisp_Object orig_local_map; | |
5334 | ||
5335 | /* 1 if we have already considered switching to the local-map property | |
5336 | of the place where a mouse click occurred. */ | |
5337 | int localized_local_map = 0; | |
5338 | ||
f4255cd1 JB |
5339 | /* The index in defs[] of the first keymap that has a binding for |
5340 | this key sequence. In other words, the lowest i such that | |
5341 | defs[i] is non-nil. */ | |
284f4730 JB |
5342 | int first_binding; |
5343 | ||
f4255cd1 | 5344 | /* If t < mock_input, then KEYBUF[t] should be read as the next |
253598e4 JB |
5345 | input key. |
5346 | ||
5347 | We use this to recover after recognizing a function key. Once we | |
5348 | realize that a suffix of the current key sequence is actually a | |
5349 | function key's escape sequence, we replace the suffix with the | |
5350 | function key's binding from Vfunction_key_map. Now keybuf | |
f4255cd1 JB |
5351 | contains a new and different key sequence, so the echo area, |
5352 | this_command_keys, and the submaps and defs arrays are wrong. In | |
5353 | this situation, we set mock_input to t, set t to 0, and jump to | |
5354 | restart_sequence; the loop will read keys from keybuf up until | |
5355 | mock_input, thus rebuilding the state; and then it will resume | |
5356 | reading characters from the keyboard. */ | |
284f4730 JB |
5357 | int mock_input = 0; |
5358 | ||
253598e4 | 5359 | /* If the sequence is unbound in submaps[], then |
f4255cd1 JB |
5360 | keybuf[fkey_start..fkey_end-1] is a prefix in Vfunction_key_map, |
5361 | and fkey_map is its binding. | |
253598e4 | 5362 | |
f4255cd1 JB |
5363 | These might be > t, indicating that all function key scanning |
5364 | should hold off until t reaches them. We do this when we've just | |
5365 | recognized a function key, to avoid searching for the function | |
5366 | key's again in Vfunction_key_map. */ | |
284f4730 | 5367 | int fkey_start = 0, fkey_end = 0; |
4efda7dd | 5368 | Lisp_Object fkey_map; |
284f4730 | 5369 | |
a612e298 RS |
5370 | /* Likewise, for key_translation_map. */ |
5371 | int keytran_start = 0, keytran_end = 0; | |
5372 | Lisp_Object keytran_map; | |
5373 | ||
cd21b839 JB |
5374 | /* If we receive a ``switch-frame'' event in the middle of a key sequence, |
5375 | we put it off for later. While we're reading, we keep the event here. */ | |
4efda7dd | 5376 | Lisp_Object delayed_switch_frame; |
cd21b839 | 5377 | |
51763820 BF |
5378 | /* See the comment below... */ |
5379 | #if defined (GOBBLE_FIRST_EVENT) | |
4efda7dd | 5380 | Lisp_Object first_event; |
51763820 | 5381 | #endif |
4efda7dd | 5382 | |
309b0fc8 RS |
5383 | Lisp_Object original_uppercase; |
5384 | int original_uppercase_position = -1; | |
5385 | ||
bc536d84 | 5386 | /* Gets around Microsoft compiler limitations. */ |
309b0fc8 | 5387 | int dummyflag = 0; |
bc536d84 | 5388 | |
3b9189f8 RS |
5389 | struct buffer *starting_buffer; |
5390 | ||
e9bf89a0 RS |
5391 | /* Nonzero if we seem to have got the beginning of a binding |
5392 | in function_key_map. */ | |
5393 | int function_key_possible = 0; | |
00a78037 | 5394 | int key_translation_possible = 0; |
e9bf89a0 | 5395 | |
3fe8e9a2 RS |
5396 | /* Save the status of key translation before each step, |
5397 | so that we can restore this after downcasing. */ | |
5398 | Lisp_Object prev_fkey_map; | |
5399 | Lisp_Object prev_fkey_start; | |
5400 | Lisp_Object prev_fkey_end; | |
5401 | ||
5402 | Lisp_Object prev_keytran_map; | |
5403 | Lisp_Object prev_keytran_start; | |
5404 | Lisp_Object prev_keytran_end; | |
5405 | ||
4efda7dd RS |
5406 | int junk; |
5407 | ||
5408 | last_nonmenu_event = Qnil; | |
5409 | ||
5410 | delayed_switch_frame = Qnil; | |
5411 | fkey_map = Vfunction_key_map; | |
a612e298 | 5412 | keytran_map = Vkey_translation_map; |
f4255cd1 | 5413 | |
a612e298 | 5414 | /* If there is no function-key-map, turn off function key scanning. */ |
f4255cd1 JB |
5415 | if (NILP (Fkeymapp (Vfunction_key_map))) |
5416 | fkey_start = fkey_end = bufsize + 1; | |
5417 | ||
a612e298 RS |
5418 | /* If there is no key-translation-map, turn off scanning. */ |
5419 | if (NILP (Fkeymapp (Vkey_translation_map))) | |
5420 | keytran_start = keytran_end = bufsize + 1; | |
5421 | ||
284f4730 JB |
5422 | if (INTERACTIVE) |
5423 | { | |
84d91fda RS |
5424 | if (!NILP (prompt)) |
5425 | echo_prompt (XSTRING (prompt)->data); | |
a98ea3f9 | 5426 | else if (cursor_in_echo_area && echo_keystrokes) |
284f4730 JB |
5427 | /* This doesn't put in a dash if the echo buffer is empty, so |
5428 | you don't always see a dash hanging out in the minibuffer. */ | |
5429 | echo_dash (); | |
284f4730 JB |
5430 | } |
5431 | ||
f4255cd1 JB |
5432 | /* Record the initial state of the echo area and this_command_keys; |
5433 | we will need to restore them if we replay a key sequence. */ | |
0a7f1fc0 | 5434 | if (INTERACTIVE) |
df0f2ba1 | 5435 | echo_start = echo_length (); |
f4255cd1 | 5436 | keys_start = this_command_key_count; |
0a7f1fc0 | 5437 | |
51763820 BF |
5438 | #if defined (GOBBLE_FIRST_EVENT) |
5439 | /* This doesn't quite work, because some of the things that read_char | |
5440 | does cannot safely be bypassed. It seems too risky to try to make | |
df0f2ba1 | 5441 | this work right. */ |
51763820 | 5442 | |
4efda7dd RS |
5443 | /* Read the first char of the sequence specially, before setting |
5444 | up any keymaps, in case a filter runs and switches buffers on us. */ | |
84d91fda | 5445 | first_event = read_char (NILP (prompt), 0, submaps, last_nonmenu_event, |
4efda7dd | 5446 | &junk); |
51763820 | 5447 | #endif /* GOBBLE_FIRST_EVENT */ |
4efda7dd | 5448 | |
e0dff5f6 RS |
5449 | orig_local_map = get_local_map (PT, current_buffer); |
5450 | ||
7b4aedb9 JB |
5451 | /* We jump here when the key sequence has been thoroughly changed, and |
5452 | we need to rescan it starting from the beginning. When we jump here, | |
5453 | keybuf[0..mock_input] holds the sequence we should reread. */ | |
07d2b8de | 5454 | replay_sequence: |
7b4aedb9 | 5455 | |
3b9189f8 | 5456 | starting_buffer = current_buffer; |
e9bf89a0 | 5457 | function_key_possible = 0; |
00a78037 | 5458 | key_translation_possible = 0; |
3b9189f8 | 5459 | |
f4255cd1 | 5460 | /* Build our list of keymaps. |
07d2b8de JB |
5461 | If we recognize a function key and replace its escape sequence in |
5462 | keybuf with its symbol, or if the sequence starts with a mouse | |
5463 | click and we need to switch buffers, we jump back here to rebuild | |
5464 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 5465 | { |
284f4730 JB |
5466 | Lisp_Object *maps; |
5467 | ||
217258d5 KH |
5468 | if (!NILP (current_kboard->Voverriding_terminal_local_map) |
5469 | || !NILP (Voverriding_local_map)) | |
284f4730 | 5470 | { |
217258d5 | 5471 | if (3 > nmaps_allocated) |
9dd3131c | 5472 | { |
217258d5 KH |
5473 | submaps = (Lisp_Object *) alloca (3 * sizeof (submaps[0])); |
5474 | defs = (Lisp_Object *) alloca (3 * sizeof (defs[0])); | |
5475 | nmaps_allocated = 3; | |
9dd3131c | 5476 | } |
217258d5 KH |
5477 | nmaps = 0; |
5478 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
5479 | submaps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
5480 | if (!NILP (Voverriding_local_map)) | |
5481 | submaps[nmaps++] = Voverriding_local_map; | |
284f4730 | 5482 | } |
9dd3131c RS |
5483 | else |
5484 | { | |
217258d5 KH |
5485 | nmaps = current_minor_maps (0, &maps); |
5486 | if (nmaps + 2 > nmaps_allocated) | |
9dd3131c | 5487 | { |
217258d5 KH |
5488 | submaps = (Lisp_Object *) alloca ((nmaps+2) * sizeof (submaps[0])); |
5489 | defs = (Lisp_Object *) alloca ((nmaps+2) * sizeof (defs[0])); | |
5490 | nmaps_allocated = nmaps + 2; | |
9dd3131c | 5491 | } |
217258d5 | 5492 | bcopy (maps, submaps, nmaps * sizeof (submaps[0])); |
497ba7a1 | 5493 | #ifdef USE_TEXT_PROPERTIES |
217258d5 | 5494 | submaps[nmaps++] = orig_local_map; |
497ba7a1 | 5495 | #else |
217258d5 | 5496 | submaps[nmaps++] = current_buffer->keymap; |
497ba7a1 | 5497 | #endif |
9dd3131c | 5498 | } |
217258d5 | 5499 | submaps[nmaps++] = current_global_map; |
284f4730 JB |
5500 | } |
5501 | ||
5502 | /* Find an accurate initial value for first_binding. */ | |
5503 | for (first_binding = 0; first_binding < nmaps; first_binding++) | |
253598e4 | 5504 | if (! NILP (submaps[first_binding])) |
284f4730 JB |
5505 | break; |
5506 | ||
3b9189f8 | 5507 | /* Start from the beginning in keybuf. */ |
f4255cd1 JB |
5508 | t = 0; |
5509 | ||
5510 | /* These are no-ops the first time through, but if we restart, they | |
5511 | revert the echo area and this_command_keys to their original state. */ | |
5512 | this_command_key_count = keys_start; | |
df0f2ba1 | 5513 | if (INTERACTIVE && t < mock_input) |
f4255cd1 JB |
5514 | echo_truncate (echo_start); |
5515 | ||
cca310da JB |
5516 | /* If the best binding for the current key sequence is a keymap, or |
5517 | we may be looking at a function key's escape sequence, keep on | |
5518 | reading. */ | |
253598e4 | 5519 | while ((first_binding < nmaps && ! NILP (submaps[first_binding])) |
cca310da JB |
5520 | || (first_binding >= nmaps |
5521 | && fkey_start < t | |
5522 | /* mock input is never part of a function key's sequence. */ | |
a612e298 | 5523 | && mock_input <= fkey_start) |
0d882d52 KH |
5524 | || (first_binding >= nmaps |
5525 | && keytran_start < t && key_translation_possible) | |
e9bf89a0 RS |
5526 | /* Don't return in the middle of a possible function key sequence, |
5527 | if the only bindings we found were via case conversion. | |
5528 | Thus, if ESC O a has a function-key-map translation | |
5529 | and ESC o has a binding, don't return after ESC O, | |
5530 | so that we can translate ESC O plus the next character. */ | |
4e50f26a | 5531 | ) |
284f4730 JB |
5532 | { |
5533 | Lisp_Object key; | |
7d6de002 | 5534 | int used_mouse_menu = 0; |
284f4730 | 5535 | |
7b4aedb9 JB |
5536 | /* Where the last real key started. If we need to throw away a |
5537 | key that has expanded into more than one element of keybuf | |
5538 | (say, a mouse click on the mode line which is being treated | |
5539 | as [mode-line (mouse-...)], then we backtrack to this point | |
5540 | of keybuf. */ | |
5541 | int last_real_key_start; | |
5542 | ||
0a7f1fc0 JB |
5543 | /* These variables are analogous to echo_start and keys_start; |
5544 | while those allow us to restart the entire key sequence, | |
5545 | echo_local_start and keys_local_start allow us to throw away | |
5546 | just one key. */ | |
f4255cd1 JB |
5547 | int echo_local_start, keys_local_start, local_first_binding; |
5548 | ||
284f4730 | 5549 | if (t >= bufsize) |
3fe8e9a2 | 5550 | error ("Key sequence too long"); |
284f4730 | 5551 | |
f4255cd1 JB |
5552 | if (INTERACTIVE) |
5553 | echo_local_start = echo_length (); | |
5554 | keys_local_start = this_command_key_count; | |
5555 | local_first_binding = first_binding; | |
df0f2ba1 | 5556 | |
f4255cd1 | 5557 | replay_key: |
0a7f1fc0 | 5558 | /* These are no-ops, unless we throw away a keystroke below and |
f4255cd1 JB |
5559 | jumped back up to replay_key; in that case, these restore the |
5560 | variables to their original state, allowing us to replay the | |
0a7f1fc0 | 5561 | loop. */ |
40932d1a | 5562 | if (INTERACTIVE && t < mock_input) |
f4255cd1 | 5563 | echo_truncate (echo_local_start); |
0a7f1fc0 JB |
5564 | this_command_key_count = keys_local_start; |
5565 | first_binding = local_first_binding; | |
5566 | ||
7e85b935 RS |
5567 | /* By default, assume each event is "real". */ |
5568 | last_real_key_start = t; | |
5569 | ||
f4255cd1 | 5570 | /* Does mock_input indicate that we are re-reading a key sequence? */ |
284f4730 JB |
5571 | if (t < mock_input) |
5572 | { | |
5573 | key = keybuf[t]; | |
5574 | add_command_key (key); | |
a98ea3f9 RS |
5575 | if (echo_keystrokes) |
5576 | echo_char (key); | |
284f4730 | 5577 | } |
253598e4 JB |
5578 | |
5579 | /* If not, we should actually read a character. */ | |
284f4730 JB |
5580 | else |
5581 | { | |
a6d53864 RS |
5582 | struct buffer *buf = current_buffer; |
5583 | ||
beecf6a1 | 5584 | { |
c5fdd383 KH |
5585 | #ifdef MULTI_KBOARD |
5586 | KBOARD *interrupted_kboard = current_kboard; | |
df0f2ba1 | 5587 | struct frame *interrupted_frame = selected_frame; |
c5fdd383 | 5588 | if (setjmp (wrong_kboard_jmpbuf)) |
beecf6a1 | 5589 | { |
5798cf15 KH |
5590 | if (!NILP (delayed_switch_frame)) |
5591 | { | |
c5fdd383 | 5592 | interrupted_kboard->kbd_queue |
5798cf15 | 5593 | = Fcons (delayed_switch_frame, |
c5fdd383 | 5594 | interrupted_kboard->kbd_queue); |
5798cf15 KH |
5595 | delayed_switch_frame = Qnil; |
5596 | } | |
beecf6a1 | 5597 | while (t > 0) |
c5fdd383 KH |
5598 | interrupted_kboard->kbd_queue |
5599 | = Fcons (keybuf[--t], interrupted_kboard->kbd_queue); | |
5798cf15 KH |
5600 | |
5601 | /* If the side queue is non-empty, ensure it begins with a | |
5602 | switch-frame, so we'll replay it in the right context. */ | |
c5fdd383 KH |
5603 | if (CONSP (interrupted_kboard->kbd_queue) |
5604 | && (key = XCONS (interrupted_kboard->kbd_queue)->car, | |
5798cf15 KH |
5605 | !(EVENT_HAS_PARAMETERS (key) |
5606 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), | |
5607 | Qswitch_frame)))) | |
df0f2ba1 KH |
5608 | { |
5609 | Lisp_Object frame; | |
5610 | XSETFRAME (frame, interrupted_frame); | |
c5fdd383 | 5611 | interrupted_kboard->kbd_queue |
df0f2ba1 | 5612 | = Fcons (make_lispy_switch_frame (frame), |
c5fdd383 | 5613 | interrupted_kboard->kbd_queue); |
df0f2ba1 | 5614 | } |
beecf6a1 | 5615 | mock_input = 0; |
a6e0153c | 5616 | orig_local_map = get_local_map (PT, current_buffer); |
beecf6a1 KH |
5617 | goto replay_sequence; |
5618 | } | |
bded54dd | 5619 | #endif |
beecf6a1 KH |
5620 | key = read_char (NILP (prompt), nmaps, submaps, last_nonmenu_event, |
5621 | &used_mouse_menu); | |
5622 | } | |
284f4730 | 5623 | |
dcc408a0 RS |
5624 | /* read_char returns t when it shows a menu and the user rejects it. |
5625 | Just return -1. */ | |
5626 | if (EQ (key, Qt)) | |
5627 | return -1; | |
5628 | ||
f4255cd1 | 5629 | /* read_char returns -1 at the end of a macro. |
284f4730 JB |
5630 | Emacs 18 handles this by returning immediately with a |
5631 | zero, so that's what we'll do. */ | |
8c18cbfb | 5632 | if (INTEGERP (key) && XINT (key) == -1) |
cd21b839 | 5633 | { |
f4255cd1 | 5634 | t = 0; |
bc536d84 RS |
5635 | /* The Microsoft C compiler can't handle the goto that |
5636 | would go here. */ | |
309b0fc8 | 5637 | dummyflag = 1; |
bc536d84 | 5638 | break; |
cd21b839 | 5639 | } |
df0f2ba1 | 5640 | |
3cb81011 KH |
5641 | /* If the current buffer has been changed from under us, the |
5642 | keymap may have changed, so replay the sequence. */ | |
8c18cbfb | 5643 | if (BUFFERP (key)) |
3cb81011 KH |
5644 | { |
5645 | mock_input = t; | |
a6e0153c | 5646 | orig_local_map = get_local_map (PT, current_buffer); |
3cb81011 KH |
5647 | goto replay_sequence; |
5648 | } | |
5649 | ||
3b9189f8 RS |
5650 | /* If we have a quit that was typed in another frame, and |
5651 | quit_throw_to_read_char switched buffers, | |
5652 | replay to get the right keymap. */ | |
9343ab07 | 5653 | if (XINT (key) == quit_char && current_buffer != starting_buffer) |
3b9189f8 RS |
5654 | { |
5655 | keybuf[t++] = key; | |
5656 | mock_input = t; | |
5657 | Vquit_flag = Qnil; | |
a6e0153c | 5658 | orig_local_map = get_local_map (PT, current_buffer); |
3b9189f8 RS |
5659 | goto replay_sequence; |
5660 | } | |
3cb81011 | 5661 | |
284f4730 | 5662 | Vquit_flag = Qnil; |
7e85b935 | 5663 | } |
284f4730 | 5664 | |
df0f2ba1 | 5665 | /* Clicks in non-text areas get prefixed by the symbol |
7e85b935 RS |
5666 | in their CHAR-ADDRESS field. For example, a click on |
5667 | the mode line is prefixed by the symbol `mode-line'. | |
5668 | ||
5669 | Furthermore, key sequences beginning with mouse clicks | |
5670 | are read using the keymaps of the buffer clicked on, not | |
5671 | the current buffer. So we may have to switch the buffer | |
5672 | here. | |
5673 | ||
5674 | When we turn one event into two events, we must make sure | |
5675 | that neither of the two looks like the original--so that, | |
5676 | if we replay the events, they won't be expanded again. | |
5677 | If not for this, such reexpansion could happen either here | |
5678 | or when user programs play with this-command-keys. */ | |
5679 | if (EVENT_HAS_PARAMETERS (key)) | |
5680 | { | |
9b8eb840 | 5681 | Lisp_Object kind; |
cca310da | 5682 | |
9b8eb840 | 5683 | kind = EVENT_HEAD_KIND (EVENT_HEAD (key)); |
7e85b935 | 5684 | if (EQ (kind, Qmouse_click)) |
0a7f1fc0 | 5685 | { |
9b8eb840 | 5686 | Lisp_Object window, posn; |
f4255cd1 | 5687 | |
9b8eb840 KH |
5688 | window = POSN_WINDOW (EVENT_START (key)); |
5689 | posn = POSN_BUFFER_POSN (EVENT_START (key)); | |
8c18cbfb | 5690 | if (CONSP (posn)) |
0a7f1fc0 | 5691 | { |
7e85b935 RS |
5692 | /* We're looking at the second event of a |
5693 | sequence which we expanded before. Set | |
5694 | last_real_key_start appropriately. */ | |
5695 | if (t > 0) | |
5696 | last_real_key_start = t - 1; | |
cd21b839 | 5697 | } |
7e85b935 RS |
5698 | |
5699 | /* Key sequences beginning with mouse clicks are | |
5700 | read using the keymaps in the buffer clicked on, | |
5701 | not the current buffer. If we're at the | |
5702 | beginning of a key sequence, switch buffers. */ | |
5703 | if (last_real_key_start == 0 | |
8c18cbfb KH |
5704 | && WINDOWP (window) |
5705 | && BUFFERP (XWINDOW (window)->buffer) | |
7e85b935 | 5706 | && XBUFFER (XWINDOW (window)->buffer) != current_buffer) |
cd21b839 | 5707 | { |
7e85b935 RS |
5708 | keybuf[t] = key; |
5709 | mock_input = t + 1; | |
5710 | ||
5711 | /* Arrange to go back to the original buffer once we're | |
5712 | done reading the key sequence. Note that we can't | |
5713 | use save_excursion_{save,restore} here, because they | |
5714 | save point as well as the current buffer; we don't | |
5715 | want to save point, because redisplay may change it, | |
5716 | to accommodate a Fset_window_start or something. We | |
5717 | don't want to do this at the top of the function, | |
5718 | because we may get input from a subprocess which | |
5719 | wants to change the selected window and stuff (say, | |
5720 | emacsclient). */ | |
5721 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); | |
5722 | ||
5723 | set_buffer_internal (XBUFFER (XWINDOW (window)->buffer)); | |
e0dff5f6 | 5724 | orig_local_map = get_local_map (PT, current_buffer); |
7e85b935 | 5725 | goto replay_sequence; |
0a7f1fc0 | 5726 | } |
e0dff5f6 RS |
5727 | /* For a mouse click, get the local text-property keymap |
5728 | of the place clicked on, rather than point. */ | |
5729 | if (last_real_key_start == 0 && CONSP (XCONS (key)->cdr) | |
5730 | && ! localized_local_map) | |
5ec75a55 | 5731 | { |
e0dff5f6 RS |
5732 | Lisp_Object map_here, start, pos; |
5733 | ||
5734 | localized_local_map = 1; | |
5735 | start = EVENT_START (key); | |
5736 | if (CONSP (start) && CONSP (XCONS (start)->cdr)) | |
5737 | { | |
5738 | pos = POSN_BUFFER_POSN (start); | |
b78ce8fb RS |
5739 | if (INTEGERP (pos) |
5740 | && XINT (pos) >= BEG && XINT (pos) <= Z) | |
e0dff5f6 RS |
5741 | { |
5742 | map_here = get_local_map (XINT (pos), current_buffer); | |
5743 | if (!EQ (map_here, orig_local_map)) | |
5744 | { | |
5745 | orig_local_map = map_here; | |
5746 | keybuf[t] = key; | |
5747 | mock_input = t + 1; | |
5ec75a55 | 5748 | |
e0dff5f6 RS |
5749 | goto replay_sequence; |
5750 | } | |
5751 | } | |
5752 | } | |
5753 | } | |
5754 | ||
5755 | /* Expand mode-line and scroll-bar events into two events: | |
5756 | use posn as a fake prefix key. */ | |
5757 | if (SYMBOLP (posn)) | |
5758 | { | |
7e85b935 | 5759 | if (t + 1 >= bufsize) |
3fe8e9a2 | 5760 | error ("Key sequence too long"); |
7e85b935 RS |
5761 | keybuf[t] = posn; |
5762 | keybuf[t+1] = key; | |
5763 | mock_input = t + 2; | |
5764 | ||
5765 | /* Zap the position in key, so we know that we've | |
5766 | expanded it, and don't try to do so again. */ | |
5767 | POSN_BUFFER_POSN (EVENT_START (key)) | |
5768 | = Fcons (posn, Qnil); | |
5769 | goto replay_key; | |
5ec75a55 | 5770 | } |
0a7f1fc0 | 5771 | } |
7e85b935 | 5772 | else if (EQ (kind, Qswitch_frame)) |
a6d53864 | 5773 | { |
ce98e608 KH |
5774 | /* If we're at the beginning of a key sequence, and the caller |
5775 | says it's okay, go ahead and return this event. If we're | |
5776 | in the midst of a key sequence, delay it until the end. */ | |
5777 | if (t > 0 || !can_return_switch_frame) | |
7e85b935 RS |
5778 | { |
5779 | delayed_switch_frame = key; | |
5780 | goto replay_key; | |
5781 | } | |
5782 | } | |
7a80a6f6 RS |
5783 | else if (CONSP (XCONS (key)->cdr) |
5784 | && CONSP (EVENT_START (key)) | |
5785 | && CONSP (XCONS (EVENT_START (key))->cdr)) | |
7e85b935 | 5786 | { |
9b8eb840 | 5787 | Lisp_Object posn; |
7e85b935 | 5788 | |
9b8eb840 | 5789 | posn = POSN_BUFFER_POSN (EVENT_START (key)); |
7e85b935 RS |
5790 | /* Handle menu-bar events: |
5791 | insert the dummy prefix event `menu-bar'. */ | |
5792 | if (EQ (posn, Qmenu_bar)) | |
5793 | { | |
5794 | if (t + 1 >= bufsize) | |
3fe8e9a2 | 5795 | error ("Key sequence too long"); |
7e85b935 RS |
5796 | keybuf[t] = posn; |
5797 | keybuf[t+1] = key; | |
5798 | ||
5799 | /* Zap the position in key, so we know that we've | |
5800 | expanded it, and don't try to do so again. */ | |
5801 | POSN_BUFFER_POSN (EVENT_START (key)) | |
5802 | = Fcons (posn, Qnil); | |
5803 | ||
5804 | mock_input = t + 2; | |
5805 | goto replay_sequence; | |
5806 | } | |
8c18cbfb | 5807 | else if (CONSP (posn)) |
7e85b935 RS |
5808 | { |
5809 | /* We're looking at the second event of a | |
5810 | sequence which we expanded before. Set | |
5811 | last_real_key_start appropriately. */ | |
5812 | if (last_real_key_start == t && t > 0) | |
5813 | last_real_key_start = t - 1; | |
5814 | } | |
a6d53864 | 5815 | } |
284f4730 | 5816 | } |
f4255cd1 JB |
5817 | |
5818 | /* We have finally decided that KEY is something we might want | |
5819 | to look up. */ | |
284f4730 JB |
5820 | first_binding = (follow_key (key, |
5821 | nmaps - first_binding, | |
253598e4 | 5822 | submaps + first_binding, |
284f4730 | 5823 | defs + first_binding, |
4e50f26a | 5824 | submaps + first_binding) |
284f4730 | 5825 | + first_binding); |
0a7f1fc0 | 5826 | |
f4255cd1 | 5827 | /* If KEY wasn't bound, we'll try some fallbacks. */ |
0a7f1fc0 JB |
5828 | if (first_binding >= nmaps) |
5829 | { | |
9b8eb840 | 5830 | Lisp_Object head; |
0a7f1fc0 | 5831 | |
9b8eb840 | 5832 | head = EVENT_HEAD (key); |
24736fbc | 5833 | if (help_char_p (head) && t > 0) |
7e85b935 RS |
5834 | { |
5835 | read_key_sequence_cmd = Vprefix_help_command; | |
5836 | keybuf[t++] = key; | |
5837 | last_nonmenu_event = key; | |
bc536d84 RS |
5838 | /* The Microsoft C compiler can't handle the goto that |
5839 | would go here. */ | |
309b0fc8 | 5840 | dummyflag = 1; |
0d882d52 | 5841 | break; |
7e85b935 RS |
5842 | } |
5843 | ||
8c18cbfb | 5844 | if (SYMBOLP (head)) |
0a7f1fc0 | 5845 | { |
9b8eb840 KH |
5846 | Lisp_Object breakdown; |
5847 | int modifiers; | |
0a7f1fc0 | 5848 | |
9b8eb840 KH |
5849 | breakdown = parse_modifiers (head); |
5850 | modifiers = XINT (XCONS (XCONS (breakdown)->cdr)->car); | |
559f9d04 RS |
5851 | /* Attempt to reduce an unbound mouse event to a simpler |
5852 | event that is bound: | |
5853 | Drags reduce to clicks. | |
5854 | Double-clicks reduce to clicks. | |
5855 | Triple-clicks reduce to double-clicks, then to clicks. | |
5856 | Down-clicks are eliminated. | |
5857 | Double-downs reduce to downs, then are eliminated. | |
5858 | Triple-downs reduce to double-downs, then to downs, | |
5859 | then are eliminated. */ | |
5860 | if (modifiers & (down_modifier | drag_modifier | |
5861 | | double_modifier | triple_modifier)) | |
0a7f1fc0 | 5862 | { |
559f9d04 RS |
5863 | while (modifiers & (down_modifier | drag_modifier |
5864 | | double_modifier | triple_modifier)) | |
fbcd35bd JB |
5865 | { |
5866 | Lisp_Object new_head, new_click; | |
5867 | if (modifiers & triple_modifier) | |
5868 | modifiers ^= (double_modifier | triple_modifier); | |
bc536d84 RS |
5869 | else if (modifiers & double_modifier) |
5870 | modifiers &= ~double_modifier; | |
5871 | else if (modifiers & drag_modifier) | |
5872 | modifiers &= ~drag_modifier; | |
559f9d04 RS |
5873 | else |
5874 | { | |
5875 | /* Dispose of this `down' event by simply jumping | |
5876 | back to replay_key, to get another event. | |
5877 | ||
5878 | Note that if this event came from mock input, | |
5879 | then just jumping back to replay_key will just | |
5880 | hand it to us again. So we have to wipe out any | |
5881 | mock input. | |
5882 | ||
5883 | We could delete keybuf[t] and shift everything | |
5884 | after that to the left by one spot, but we'd also | |
5885 | have to fix up any variable that points into | |
5886 | keybuf, and shifting isn't really necessary | |
5887 | anyway. | |
5888 | ||
5889 | Adding prefixes for non-textual mouse clicks | |
5890 | creates two characters of mock input, and both | |
5891 | must be thrown away. If we're only looking at | |
5892 | the prefix now, we can just jump back to | |
5893 | replay_key. On the other hand, if we've already | |
5894 | processed the prefix, and now the actual click | |
5895 | itself is giving us trouble, then we've lost the | |
5896 | state of the keymaps we want to backtrack to, and | |
5897 | we need to replay the whole sequence to rebuild | |
5898 | it. | |
5899 | ||
5900 | Beyond that, only function key expansion could | |
5901 | create more than two keys, but that should never | |
5902 | generate mouse events, so it's okay to zero | |
5903 | mock_input in that case too. | |
5904 | ||
5905 | Isn't this just the most wonderful code ever? */ | |
5906 | if (t == last_real_key_start) | |
5907 | { | |
5908 | mock_input = 0; | |
5909 | goto replay_key; | |
5910 | } | |
5911 | else | |
5912 | { | |
5913 | mock_input = last_real_key_start; | |
5914 | goto replay_sequence; | |
5915 | } | |
5916 | } | |
5917 | ||
27203ead RS |
5918 | new_head |
5919 | = apply_modifiers (modifiers, XCONS (breakdown)->car); | |
5920 | new_click | |
5921 | = Fcons (new_head, Fcons (EVENT_START (key), Qnil)); | |
fbcd35bd JB |
5922 | |
5923 | /* Look for a binding for this new key. follow_key | |
5924 | promises that it didn't munge submaps the | |
5925 | last time we called it, since key was unbound. */ | |
27203ead RS |
5926 | first_binding |
5927 | = (follow_key (new_click, | |
5928 | nmaps - local_first_binding, | |
5929 | submaps + local_first_binding, | |
5930 | defs + local_first_binding, | |
4e50f26a | 5931 | submaps + local_first_binding) |
27203ead | 5932 | + local_first_binding); |
fbcd35bd JB |
5933 | |
5934 | /* If that click is bound, go for it. */ | |
5935 | if (first_binding < nmaps) | |
5936 | { | |
5937 | key = new_click; | |
5938 | break; | |
5939 | } | |
5940 | /* Otherwise, we'll leave key set to the drag event. */ | |
5941 | } | |
0a7f1fc0 JB |
5942 | } |
5943 | } | |
5944 | } | |
5945 | ||
284f4730 | 5946 | keybuf[t++] = key; |
7d6de002 RS |
5947 | /* Normally, last_nonmenu_event gets the previous key we read. |
5948 | But when a mouse popup menu is being used, | |
5949 | we don't update last_nonmenu_event; it continues to hold the mouse | |
5950 | event that preceded the first level of menu. */ | |
5951 | if (!used_mouse_menu) | |
5952 | last_nonmenu_event = key; | |
284f4730 | 5953 | |
3fe8e9a2 RS |
5954 | prev_fkey_map = fkey_map; |
5955 | prev_fkey_start = fkey_start; | |
5956 | prev_fkey_end = fkey_end; | |
5957 | ||
5958 | prev_keytran_map = keytran_map; | |
5959 | prev_keytran_start = keytran_start; | |
5960 | prev_keytran_end = keytran_end; | |
5961 | ||
284f4730 | 5962 | /* If the sequence is unbound, see if we can hang a function key |
253598e4 JB |
5963 | off the end of it. We only want to scan real keyboard input |
5964 | for function key sequences, so if mock_input says that we're | |
f4255cd1 | 5965 | re-reading old events, don't examine it. */ |
4e50f26a | 5966 | if (first_binding >= nmaps |
253598e4 | 5967 | && t >= mock_input) |
284f4730 JB |
5968 | { |
5969 | Lisp_Object fkey_next; | |
5970 | ||
e9bf89a0 RS |
5971 | /* Continue scan from fkey_end until we find a bound suffix. |
5972 | If we fail, increment fkey_start | |
5973 | and start fkey_end from there. */ | |
284f4730 JB |
5974 | while (fkey_end < t) |
5975 | { | |
f4255cd1 JB |
5976 | Lisp_Object key; |
5977 | ||
5978 | key = keybuf[fkey_end++]; | |
067ffa38 JB |
5979 | /* Look up meta-characters by prefixing them |
5980 | with meta_prefix_char. I hate this. */ | |
8c18cbfb | 5981 | if (INTEGERP (key) && XINT (key) & meta_modifier) |
f4255cd1 | 5982 | { |
e74fbc70 RS |
5983 | fkey_next |
5984 | = get_keymap_1 | |
f4255cd1 | 5985 | (get_keyelt |
e74fbc70 | 5986 | (access_keymap (fkey_map, meta_prefix_char, 1, 0)), |
f4255cd1 | 5987 | 0, 1); |
bb9e9bed | 5988 | XSETFASTINT (key, XFASTINT (key) & ~meta_modifier); |
f4255cd1 | 5989 | } |
067ffa38 JB |
5990 | else |
5991 | fkey_next = fkey_map; | |
5992 | ||
e74fbc70 RS |
5993 | fkey_next |
5994 | = get_keyelt (access_keymap (fkey_next, key, 1, 0)); | |
067ffa38 | 5995 | |
7a80a6f6 RS |
5996 | #if 0 /* I didn't turn this on, because it might cause trouble |
5997 | for the mapping of return into C-m and tab into C-i. */ | |
5998 | /* Optionally don't map function keys into other things. | |
5999 | This enables the user to redefine kp- keys easily. */ | |
6000 | if (SYMBOLP (key) && !NILP (Vinhibit_function_key_mapping)) | |
6001 | fkey_next = Qnil; | |
6002 | #endif | |
6003 | ||
1abe6abe RS |
6004 | /* If the function key map gives a function, not an |
6005 | array, then call the function with no args and use | |
6006 | its value instead. */ | |
6007 | if (SYMBOLP (fkey_next) && ! NILP (Ffboundp (fkey_next)) | |
6008 | && fkey_end == t) | |
6009 | { | |
6010 | struct gcpro gcpro1, gcpro2, gcpro3; | |
6011 | Lisp_Object tem; | |
6012 | tem = fkey_next; | |
6013 | ||
6014 | GCPRO3 (fkey_map, keytran_map, delayed_switch_frame); | |
84d91fda | 6015 | fkey_next = call1 (fkey_next, prompt); |
1abe6abe RS |
6016 | UNGCPRO; |
6017 | /* If the function returned something invalid, | |
6018 | barf--don't ignore it. | |
df0f2ba1 | 6019 | (To ignore it safely, we would need to gcpro a bunch of |
1abe6abe RS |
6020 | other variables.) */ |
6021 | if (! (VECTORP (fkey_next) || STRINGP (fkey_next))) | |
6022 | error ("Function in function-key-map returns invalid key sequence"); | |
6023 | } | |
6024 | ||
e9bf89a0 RS |
6025 | function_key_possible = ! NILP (fkey_next); |
6026 | ||
85bc5181 | 6027 | /* If keybuf[fkey_start..fkey_end] is bound in the |
a764a753 | 6028 | function key map and it's a suffix of the current |
85bc5181 | 6029 | sequence (i.e. fkey_end == t), replace it with |
a764a753 | 6030 | the binding and restart with fkey_start at the end. */ |
f5ea6163 | 6031 | if ((VECTORP (fkey_next) || STRINGP (fkey_next)) |
284f4730 JB |
6032 | && fkey_end == t) |
6033 | { | |
2e864a76 | 6034 | int len = XFASTINT (Flength (fkey_next)); |
f5ea6163 JB |
6035 | |
6036 | t = fkey_start + len; | |
284f4730 | 6037 | if (t >= bufsize) |
3fe8e9a2 | 6038 | error ("Key sequence too long"); |
284f4730 | 6039 | |
f5ea6163 JB |
6040 | if (VECTORP (fkey_next)) |
6041 | bcopy (XVECTOR (fkey_next)->contents, | |
6042 | keybuf + fkey_start, | |
6043 | (t - fkey_start) * sizeof (keybuf[0])); | |
6044 | else if (STRINGP (fkey_next)) | |
6045 | { | |
6046 | int i; | |
6047 | ||
6048 | for (i = 0; i < len; i++) | |
bb9e9bed KH |
6049 | XSETFASTINT (keybuf[fkey_start + i], |
6050 | XSTRING (fkey_next)->data[i]); | |
f5ea6163 | 6051 | } |
df0f2ba1 | 6052 | |
284f4730 JB |
6053 | mock_input = t; |
6054 | fkey_start = fkey_end = t; | |
32e6d806 | 6055 | fkey_map = Vfunction_key_map; |
284f4730 | 6056 | |
00a78037 RS |
6057 | /* Do pass the results through key-translation-map. */ |
6058 | keytran_start = keytran_end = 0; | |
6059 | keytran_map = Vkey_translation_map; | |
6060 | ||
f4255cd1 | 6061 | goto replay_sequence; |
284f4730 | 6062 | } |
df0f2ba1 | 6063 | |
f4255cd1 | 6064 | fkey_map = get_keymap_1 (fkey_next, 0, 1); |
284f4730 | 6065 | |
df0f2ba1 | 6066 | /* If we no longer have a bound suffix, try a new positions for |
a764a753 | 6067 | fkey_start. */ |
284f4730 JB |
6068 | if (NILP (fkey_map)) |
6069 | { | |
6070 | fkey_end = ++fkey_start; | |
6071 | fkey_map = Vfunction_key_map; | |
e9bf89a0 | 6072 | function_key_possible = 0; |
284f4730 JB |
6073 | } |
6074 | } | |
6075 | } | |
a612e298 RS |
6076 | |
6077 | /* Look for this sequence in key-translation-map. */ | |
6078 | { | |
6079 | Lisp_Object keytran_next; | |
6080 | ||
6081 | /* Scan from keytran_end until we find a bound suffix. */ | |
6082 | while (keytran_end < t) | |
6083 | { | |
6084 | Lisp_Object key; | |
6085 | ||
6086 | key = keybuf[keytran_end++]; | |
6087 | /* Look up meta-characters by prefixing them | |
6088 | with meta_prefix_char. I hate this. */ | |
8c18cbfb | 6089 | if (INTEGERP (key) && XINT (key) & meta_modifier) |
a612e298 RS |
6090 | { |
6091 | keytran_next | |
6092 | = get_keymap_1 | |
6093 | (get_keyelt | |
6094 | (access_keymap (keytran_map, meta_prefix_char, 1, 0)), | |
6095 | 0, 1); | |
bb9e9bed | 6096 | XSETFASTINT (key, XFASTINT (key) & ~meta_modifier); |
a612e298 RS |
6097 | } |
6098 | else | |
6099 | keytran_next = keytran_map; | |
6100 | ||
6101 | keytran_next | |
6102 | = get_keyelt (access_keymap (keytran_next, key, 1, 0)); | |
6103 | ||
1abe6abe RS |
6104 | /* If the key translation map gives a function, not an |
6105 | array, then call the function with no args and use | |
6106 | its value instead. */ | |
6107 | if (SYMBOLP (keytran_next) && ! NILP (Ffboundp (keytran_next)) | |
6108 | && keytran_end == t) | |
6109 | { | |
6110 | struct gcpro gcpro1, gcpro2, gcpro3; | |
6111 | Lisp_Object tem; | |
6112 | tem = keytran_next; | |
6113 | ||
40932d1a | 6114 | GCPRO3 (fkey_map, keytran_map, delayed_switch_frame); |
84d91fda | 6115 | keytran_next = call1 (keytran_next, prompt); |
1abe6abe RS |
6116 | UNGCPRO; |
6117 | /* If the function returned something invalid, | |
6118 | barf--don't ignore it. | |
df0f2ba1 | 6119 | (To ignore it safely, we would need to gcpro a bunch of |
1abe6abe RS |
6120 | other variables.) */ |
6121 | if (! (VECTORP (keytran_next) || STRINGP (keytran_next))) | |
40932d1a | 6122 | error ("Function in key-translation-map returns invalid key sequence"); |
1abe6abe RS |
6123 | } |
6124 | ||
00a78037 RS |
6125 | key_translation_possible = ! NILP (keytran_next); |
6126 | ||
a612e298 | 6127 | /* If keybuf[keytran_start..keytran_end] is bound in the |
1abe6abe | 6128 | key translation map and it's a suffix of the current |
a612e298 RS |
6129 | sequence (i.e. keytran_end == t), replace it with |
6130 | the binding and restart with keytran_start at the end. */ | |
6131 | if ((VECTORP (keytran_next) || STRINGP (keytran_next)) | |
6132 | && keytran_end == t) | |
6133 | { | |
2e864a76 | 6134 | int len = XFASTINT (Flength (keytran_next)); |
a612e298 RS |
6135 | |
6136 | t = keytran_start + len; | |
6137 | if (t >= bufsize) | |
3fe8e9a2 | 6138 | error ("Key sequence too long"); |
a612e298 RS |
6139 | |
6140 | if (VECTORP (keytran_next)) | |
6141 | bcopy (XVECTOR (keytran_next)->contents, | |
6142 | keybuf + keytran_start, | |
6143 | (t - keytran_start) * sizeof (keybuf[0])); | |
6144 | else if (STRINGP (keytran_next)) | |
6145 | { | |
6146 | int i; | |
6147 | ||
6148 | for (i = 0; i < len; i++) | |
bb9e9bed KH |
6149 | XSETFASTINT (keybuf[keytran_start + i], |
6150 | XSTRING (keytran_next)->data[i]); | |
a612e298 RS |
6151 | } |
6152 | ||
6153 | mock_input = t; | |
6154 | keytran_start = keytran_end = t; | |
6155 | keytran_map = Vkey_translation_map; | |
6156 | ||
00a78037 RS |
6157 | /* Don't pass the results of key-translation-map |
6158 | through function-key-map. */ | |
6159 | fkey_start = fkey_end = t; | |
6160 | fkey_map = Vkey_translation_map; | |
6161 | ||
a612e298 RS |
6162 | goto replay_sequence; |
6163 | } | |
6164 | ||
6165 | keytran_map = get_keymap_1 (keytran_next, 0, 1); | |
6166 | ||
df0f2ba1 | 6167 | /* If we no longer have a bound suffix, try a new positions for |
a612e298 RS |
6168 | keytran_start. */ |
6169 | if (NILP (keytran_map)) | |
6170 | { | |
6171 | keytran_end = ++keytran_start; | |
6172 | keytran_map = Vkey_translation_map; | |
00a78037 | 6173 | key_translation_possible = 0; |
a612e298 RS |
6174 | } |
6175 | } | |
6176 | } | |
4e50f26a RS |
6177 | |
6178 | /* If KEY is not defined in any of the keymaps, | |
6179 | and cannot be part of a function key or translation, | |
6180 | and is an upper case letter | |
6181 | use the corresponding lower-case letter instead. */ | |
6182 | if (first_binding == nmaps && ! function_key_possible | |
00a78037 | 6183 | && ! key_translation_possible |
8c18cbfb | 6184 | && INTEGERP (key) |
4e50f26a RS |
6185 | && ((((XINT (key) & 0x3ffff) |
6186 | < XSTRING (current_buffer->downcase_table)->size) | |
6187 | && UPPERCASEP (XINT (key) & 0x3ffff)) | |
6188 | || (XINT (key) & shift_modifier))) | |
6189 | { | |
569871d2 | 6190 | Lisp_Object new_key; |
569871d2 | 6191 | |
309b0fc8 RS |
6192 | original_uppercase = key; |
6193 | original_uppercase_position = t - 1; | |
6194 | ||
569871d2 RS |
6195 | if (XINT (new_key) & shift_modifier) |
6196 | XSETINT (new_key, XINT (key) & ~shift_modifier); | |
4e50f26a | 6197 | else |
569871d2 RS |
6198 | XSETINT (new_key, (DOWNCASE (XINT (key) & 0x3ffff) |
6199 | | (XINT (key) & ~0x3ffff))); | |
6200 | ||
3fe8e9a2 RS |
6201 | /* We have to do this unconditionally, regardless of whether |
6202 | the lower-case char is defined in the keymaps, because they | |
6203 | might get translated through function-key-map. */ | |
6204 | keybuf[t - 1] = new_key; | |
6205 | mock_input = t; | |
6206 | ||
6207 | fkey_map = prev_fkey_map; | |
6208 | fkey_start = prev_fkey_start; | |
6209 | fkey_end = prev_fkey_end; | |
6210 | ||
6211 | keytran_map = prev_keytran_map; | |
6212 | keytran_start = prev_keytran_start; | |
6213 | keytran_end = prev_keytran_end; | |
6214 | ||
6215 | goto replay_sequence; | |
4e50f26a | 6216 | } |
ef8fd672 RS |
6217 | /* If KEY is not defined in any of the keymaps, |
6218 | and cannot be part of a function key or translation, | |
6219 | and is a shifted function key, | |
6220 | use the corresponding unshifted function key instead. */ | |
6221 | if (first_binding == nmaps && ! function_key_possible | |
6222 | && ! key_translation_possible | |
6223 | && SYMBOLP (key)) | |
6224 | { | |
6225 | Lisp_Object breakdown; | |
6226 | int modifiers; | |
6227 | ||
6228 | breakdown = parse_modifiers (key); | |
6229 | modifiers = XINT (XCONS (XCONS (breakdown)->cdr)->car); | |
6230 | if (modifiers & shift_modifier) | |
6231 | { | |
569871d2 | 6232 | Lisp_Object new_key; |
3fe8e9a2 RS |
6233 | |
6234 | original_uppercase = key; | |
6235 | original_uppercase_position = t - 1; | |
ef8fd672 | 6236 | |
569871d2 RS |
6237 | modifiers &= ~shift_modifier; |
6238 | new_key = apply_modifiers (modifiers, | |
6239 | XCONS (breakdown)->car); | |
6240 | ||
3fe8e9a2 RS |
6241 | keybuf[t - 1] = new_key; |
6242 | mock_input = t; | |
6243 | ||
6244 | fkey_map = prev_fkey_map; | |
6245 | fkey_start = prev_fkey_start; | |
6246 | fkey_end = prev_fkey_end; | |
6247 | ||
6248 | keytran_map = prev_keytran_map; | |
6249 | keytran_start = prev_keytran_start; | |
6250 | keytran_end = prev_keytran_end; | |
6251 | ||
6252 | goto replay_sequence; | |
ef8fd672 RS |
6253 | } |
6254 | } | |
284f4730 JB |
6255 | } |
6256 | ||
309b0fc8 | 6257 | if (!dummyflag) |
bc536d84 RS |
6258 | read_key_sequence_cmd = (first_binding < nmaps |
6259 | ? defs[first_binding] | |
6260 | : Qnil); | |
284f4730 | 6261 | |
cd21b839 | 6262 | unread_switch_frame = delayed_switch_frame; |
f4255cd1 | 6263 | unbind_to (count, Qnil); |
07f76a14 | 6264 | |
3fe8e9a2 RS |
6265 | /* Don't downcase the last character if the caller says don't. |
6266 | Don't downcase it if the result is undefined, either. */ | |
6267 | if ((dont_downcase_last || first_binding >= nmaps) | |
6268 | && t - 1 == original_uppercase_position) | |
309b0fc8 RS |
6269 | keybuf[t - 1] = original_uppercase; |
6270 | ||
07f76a14 JB |
6271 | /* Occasionally we fabricate events, perhaps by expanding something |
6272 | according to function-key-map, or by adding a prefix symbol to a | |
6273 | mouse click in the scroll bar or modeline. In this cases, return | |
6274 | the entire generated key sequence, even if we hit an unbound | |
6275 | prefix or a definition before the end. This means that you will | |
6276 | be able to push back the event properly, and also means that | |
6277 | read-key-sequence will always return a logical unit. | |
6278 | ||
6279 | Better ideas? */ | |
cca310da JB |
6280 | for (; t < mock_input; t++) |
6281 | { | |
a98ea3f9 RS |
6282 | if (echo_keystrokes) |
6283 | echo_char (keybuf[t]); | |
cca310da JB |
6284 | add_command_key (keybuf[t]); |
6285 | } | |
07f76a14 | 6286 | |
284f4730 JB |
6287 | return t; |
6288 | } | |
6289 | ||
a612e298 RS |
6290 | #if 0 /* This doc string is too long for some compilers. |
6291 | This commented-out definition serves for DOC. */ | |
ce98e608 | 6292 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 4, 0, |
284f4730 JB |
6293 | "Read a sequence of keystrokes and return as a string or vector.\n\ |
6294 | The sequence is sufficient to specify a non-prefix command in the\n\ | |
6295 | current local and global maps.\n\ | |
6296 | \n\ | |
c0a58692 RS |
6297 | First arg PROMPT is a prompt string. If nil, do not prompt specially.\n\ |
6298 | Second (optional) arg CONTINUE-ECHO, if non-nil, means this key echos\n\ | |
6299 | as a continuation of the previous key.\n\ | |
284f4730 | 6300 | \n\ |
309b0fc8 RS |
6301 | The third (optional) arg DONT-DOWNCASE-LAST, if non-nil, means do not\n\ |
6302 | convert the last event to lower case. (Normally any upper case event\n\ | |
6303 | is converted to lower case if the original event is undefined and the lower\n\ | |
6304 | case equivalent is defined.) A non-nil value is appropriate for reading\n\ | |
6305 | a key sequence to be defined.\n\ | |
6306 | \n\ | |
cb5df6ae JB |
6307 | A C-g typed while in this function is treated like any other character,\n\ |
6308 | and `quit-flag' is not set.\n\ | |
6309 | \n\ | |
6310 | If the key sequence starts with a mouse click, then the sequence is read\n\ | |
6311 | using the keymaps of the buffer of the window clicked in, not the buffer\n\ | |
6312 | of the selected window as normal.\n\ | |
ede41463 | 6313 | ""\n\ |
cb5df6ae JB |
6314 | `read-key-sequence' drops unbound button-down events, since you normally\n\ |
6315 | only care about the click or drag events which follow them. If a drag\n\ | |
fbcd35bd JB |
6316 | or multi-click event is unbound, but the corresponding click event would\n\ |
6317 | be bound, `read-key-sequence' turns the event into a click event at the\n\ | |
cb5df6ae | 6318 | drag's starting position. This means that you don't have to distinguish\n\ |
fbcd35bd | 6319 | between click and drag, double, or triple events unless you want to.\n\ |
cb5df6ae JB |
6320 | \n\ |
6321 | `read-key-sequence' prefixes mouse events on mode lines, the vertical\n\ | |
3c370943 JB |
6322 | lines separating windows, and scroll bars with imaginary keys\n\ |
6323 | `mode-line', `vertical-line', and `vertical-scroll-bar'.\n\ | |
cb5df6ae | 6324 | \n\ |
ce98e608 KH |
6325 | Optional fourth argument CAN-RETURN-SWITCH-FRAME non-nil means that this\n\ |
6326 | function will process a switch-frame event if the user switches frames\n\ | |
6327 | before typing anything. If the user switches frames in the middle of a\n\ | |
6328 | key sequence, or at the start of the sequence but CAN-RETURN-SWITCH-FRAME\n\ | |
6329 | is nil, then the event will be put off until after the current key sequence.\n\ | |
cb5df6ae JB |
6330 | \n\ |
6331 | `read-key-sequence' checks `function-key-map' for function key\n\ | |
6332 | sequences, where they wouldn't conflict with ordinary bindings. See\n\ | |
4bb994d1 | 6333 | `function-key-map' for more details.") |
11e08aab | 6334 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame) |
a612e298 RS |
6335 | #endif |
6336 | ||
ce98e608 | 6337 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 4, 0, |
a612e298 | 6338 | 0) |
ce98e608 | 6339 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame) |
309b0fc8 | 6340 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
ce98e608 | 6341 | Lisp_Object can_return_switch_frame; |
284f4730 JB |
6342 | { |
6343 | Lisp_Object keybuf[30]; | |
6344 | register int i; | |
6345 | struct gcpro gcpro1, gcpro2; | |
6346 | ||
6347 | if (!NILP (prompt)) | |
6348 | CHECK_STRING (prompt, 0); | |
6349 | QUIT; | |
6350 | ||
6351 | bzero (keybuf, sizeof keybuf); | |
6352 | GCPRO1 (keybuf[0]); | |
6353 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
6354 | ||
daa37602 | 6355 | if (NILP (continue_echo)) |
c0a58692 RS |
6356 | this_command_key_count = 0; |
6357 | ||
309b0fc8 | 6358 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
ce98e608 KH |
6359 | prompt, ! NILP (dont_downcase_last), |
6360 | ! NILP (can_return_switch_frame)); | |
284f4730 | 6361 | |
dcc408a0 RS |
6362 | if (i == -1) |
6363 | { | |
6364 | Vquit_flag = Qt; | |
6365 | QUIT; | |
6366 | } | |
284f4730 | 6367 | UNGCPRO; |
86e5706b | 6368 | return make_event_array (i, keybuf); |
284f4730 JB |
6369 | } |
6370 | \f | |
aaf2ead7 | 6371 | DEFUN ("command-execute", Fcommand_execute, Scommand_execute, 1, 3, 0, |
284f4730 JB |
6372 | "Execute CMD as an editor command.\n\ |
6373 | CMD must be a symbol that satisfies the `commandp' predicate.\n\ | |
6374 | Optional second arg RECORD-FLAG non-nil\n\ | |
6375 | means unconditionally put this command in `command-history'.\n\ | |
aaf2ead7 RS |
6376 | Otherwise, that is done only if an arg is read using the minibuffer.\n\ |
6377 | The argument KEYS specifies the value to use instead of (this-command-keys)\n\ | |
6378 | when reading the arguments; if it is nil, (this_command_key_count) is used.") | |
e57d8fd8 EN |
6379 | (cmd, record_flag, keys) |
6380 | Lisp_Object cmd, record_flag, keys; | |
284f4730 JB |
6381 | { |
6382 | register Lisp_Object final; | |
6383 | register Lisp_Object tem; | |
6384 | Lisp_Object prefixarg; | |
6385 | struct backtrace backtrace; | |
6386 | extern int debug_on_next_call; | |
6387 | ||
d8bcf58e KH |
6388 | prefixarg = current_kboard->Vprefix_arg; |
6389 | current_kboard->Vprefix_arg = Qnil; | |
4c52b668 | 6390 | Vcurrent_prefix_arg = prefixarg; |
284f4730 JB |
6391 | debug_on_next_call = 0; |
6392 | ||
8c18cbfb | 6393 | if (SYMBOLP (cmd)) |
284f4730 JB |
6394 | { |
6395 | tem = Fget (cmd, Qdisabled); | |
88ce066e | 6396 | if (!NILP (tem) && !NILP (Vrun_hooks)) |
b78ce8fb RS |
6397 | { |
6398 | tem = Fsymbol_value (Qdisabled_command_hook); | |
6399 | if (!NILP (tem)) | |
6400 | return call1 (Vrun_hooks, Qdisabled_command_hook); | |
6401 | } | |
284f4730 JB |
6402 | } |
6403 | ||
01e26217 | 6404 | while (1) |
284f4730 | 6405 | { |
ffd56f97 | 6406 | final = Findirect_function (cmd); |
284f4730 JB |
6407 | |
6408 | if (CONSP (final) && (tem = Fcar (final), EQ (tem, Qautoload))) | |
6409 | do_autoload (final, cmd); | |
6410 | else | |
6411 | break; | |
6412 | } | |
6413 | ||
8c18cbfb | 6414 | if (STRINGP (final) || VECTORP (final)) |
284f4730 JB |
6415 | { |
6416 | /* If requested, place the macro in the command history. For | |
6417 | other sorts of commands, call-interactively takes care of | |
6418 | this. */ | |
e57d8fd8 | 6419 | if (!NILP (record_flag)) |
284f4730 JB |
6420 | Vcommand_history |
6421 | = Fcons (Fcons (Qexecute_kbd_macro, | |
6422 | Fcons (final, Fcons (prefixarg, Qnil))), | |
6423 | Vcommand_history); | |
6424 | ||
6425 | return Fexecute_kbd_macro (final, prefixarg); | |
6426 | } | |
8c18cbfb | 6427 | if (CONSP (final) || SUBRP (final) || COMPILEDP (final)) |
284f4730 JB |
6428 | { |
6429 | backtrace.next = backtrace_list; | |
6430 | backtrace_list = &backtrace; | |
6431 | backtrace.function = &Qcall_interactively; | |
6432 | backtrace.args = &cmd; | |
6433 | backtrace.nargs = 1; | |
6434 | backtrace.evalargs = 0; | |
6435 | ||
e57d8fd8 | 6436 | tem = Fcall_interactively (cmd, record_flag, keys); |
284f4730 JB |
6437 | |
6438 | backtrace_list = backtrace.next; | |
6439 | return tem; | |
6440 | } | |
6441 | return Qnil; | |
6442 | } | |
6443 | \f | |
284f4730 JB |
6444 | DEFUN ("execute-extended-command", Fexecute_extended_command, Sexecute_extended_command, |
6445 | 1, 1, "P", | |
6446 | "Read function name, then read its arguments and call it.") | |
6447 | (prefixarg) | |
6448 | Lisp_Object prefixarg; | |
6449 | { | |
6450 | Lisp_Object function; | |
6451 | char buf[40]; | |
6452 | Lisp_Object saved_keys; | |
6453 | struct gcpro gcpro1; | |
6454 | ||
b0f2a7bf KH |
6455 | saved_keys = Fvector (this_command_key_count, |
6456 | XVECTOR (this_command_keys)->contents); | |
284f4730 JB |
6457 | buf[0] = 0; |
6458 | GCPRO1 (saved_keys); | |
6459 | ||
6460 | if (EQ (prefixarg, Qminus)) | |
6461 | strcpy (buf, "- "); | |
6462 | else if (CONSP (prefixarg) && XINT (XCONS (prefixarg)->car) == 4) | |
6463 | strcpy (buf, "C-u "); | |
8c18cbfb | 6464 | else if (CONSP (prefixarg) && INTEGERP (XCONS (prefixarg)->car)) |
5d5b907f RS |
6465 | { |
6466 | if (sizeof (int) == sizeof (EMACS_INT)) | |
6467 | sprintf (buf, "%d ", XINT (XCONS (prefixarg)->car)); | |
6468 | else if (sizeof (long) == sizeof (EMACS_INT)) | |
6469 | sprintf (buf, "%ld ", XINT (XCONS (prefixarg)->car)); | |
6470 | else | |
6471 | abort (); | |
6472 | } | |
8c18cbfb | 6473 | else if (INTEGERP (prefixarg)) |
5d5b907f RS |
6474 | { |
6475 | if (sizeof (int) == sizeof (EMACS_INT)) | |
6476 | sprintf (buf, "%d ", XINT (prefixarg)); | |
6477 | else if (sizeof (long) == sizeof (EMACS_INT)) | |
6478 | sprintf (buf, "%ld ", XINT (prefixarg)); | |
6479 | else | |
6480 | abort (); | |
6481 | } | |
284f4730 JB |
6482 | |
6483 | /* This isn't strictly correct if execute-extended-command | |
6484 | is bound to anything else. Perhaps it should use | |
6485 | this_command_keys? */ | |
6486 | strcat (buf, "M-x "); | |
6487 | ||
6488 | /* Prompt with buf, and then read a string, completing from and | |
6489 | restricting to the set of all defined commands. Don't provide | |
51763820 | 6490 | any initial input. Save the command read on the extended-command |
03b4122a | 6491 | history list. */ |
284f4730 JB |
6492 | function = Fcompleting_read (build_string (buf), |
6493 | Vobarray, Qcommandp, | |
03b4122a | 6494 | Qt, Qnil, Qextended_command_history); |
284f4730 | 6495 | |
1f5b1641 RS |
6496 | if (STRINGP (function) && XSTRING (function)->size == 0) |
6497 | error ("No command name given"); | |
6498 | ||
1113d9db JB |
6499 | /* Set this_command_keys to the concatenation of saved_keys and |
6500 | function, followed by a RET. */ | |
284f4730 | 6501 | { |
1113d9db | 6502 | struct Lisp_String *str; |
b0f2a7bf | 6503 | Lisp_Object *keys; |
284f4730 JB |
6504 | int i; |
6505 | Lisp_Object tem; | |
6506 | ||
1113d9db JB |
6507 | this_command_key_count = 0; |
6508 | ||
b0f2a7bf KH |
6509 | keys = XVECTOR (saved_keys)->contents; |
6510 | for (i = 0; i < XVECTOR (saved_keys)->size; i++) | |
6511 | add_command_key (keys[i]); | |
1113d9db JB |
6512 | |
6513 | str = XSTRING (function); | |
6514 | for (i = 0; i < str->size; i++) | |
6515 | { | |
bb9e9bed | 6516 | XSETFASTINT (tem, str->data[i]); |
1113d9db JB |
6517 | add_command_key (tem); |
6518 | } | |
6519 | ||
bb9e9bed | 6520 | XSETFASTINT (tem, '\015'); |
1113d9db | 6521 | add_command_key (tem); |
284f4730 JB |
6522 | } |
6523 | ||
6524 | UNGCPRO; | |
6525 | ||
0a7f1fc0 | 6526 | function = Fintern (function, Qnil); |
d8bcf58e | 6527 | current_kboard->Vprefix_arg = prefixarg; |
284f4730 JB |
6528 | this_command = function; |
6529 | ||
6526ab49 RS |
6530 | /* If enabled, show which key runs this command. */ |
6531 | if (!NILP (Vsuggest_key_bindings) | |
6532 | && SYMBOLP (function)) | |
6533 | { | |
beea50e4 | 6534 | Lisp_Object bindings; |
6526ab49 | 6535 | |
beea50e4 RS |
6536 | bindings = Fwhere_is_internal (function, Voverriding_local_map, |
6537 | Qt, Qnil); | |
6526ab49 RS |
6538 | |
6539 | if (!NILP (bindings)) | |
6540 | { | |
6541 | message ("You can run the command `%s' by typing %s", | |
6542 | XSYMBOL (function)->name->data, | |
6543 | XSTRING (Fkey_description (bindings))->data); | |
6544 | Fsit_for ((NUMBERP (Vsuggest_key_bindings) | |
6545 | ? Vsuggest_key_bindings : make_number (2)), | |
6546 | Qnil, Qnil); | |
6547 | } | |
6548 | } | |
6549 | ||
aaf2ead7 | 6550 | return Fcommand_execute (function, Qt, Qnil); |
284f4730 | 6551 | } |
6526ab49 RS |
6552 | |
6553 | /* Find the set of keymaps now active. | |
6554 | Store into *MAPS_P a vector holding the various maps | |
6555 | and return the number of them. The vector was malloc'd | |
6556 | and the caller should free it. */ | |
6557 | ||
6558 | int | |
6559 | current_active_maps (maps_p) | |
6560 | Lisp_Object **maps_p; | |
6561 | { | |
6562 | Lisp_Object *tmaps, *maps; | |
6563 | int nmaps; | |
6564 | ||
6565 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ | |
6566 | if (!NILP (Voverriding_local_map_menu_flag)) | |
6567 | { | |
6568 | /* Yes, use them (if non-nil) as well as the global map. */ | |
6569 | maps = (Lisp_Object *) xmalloc (3 * sizeof (maps[0])); | |
6570 | nmaps = 0; | |
6571 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
6572 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
6573 | if (!NILP (Voverriding_local_map)) | |
6574 | maps[nmaps++] = Voverriding_local_map; | |
6575 | } | |
6576 | else | |
6577 | { | |
6578 | /* No, so use major and minor mode keymaps. */ | |
6579 | nmaps = current_minor_maps (NULL, &tmaps); | |
6580 | maps = (Lisp_Object *) xmalloc ((nmaps + 2) * sizeof (maps[0])); | |
6581 | bcopy (tmaps, maps, nmaps * sizeof (maps[0])); | |
6582 | #ifdef USE_TEXT_PROPERTIES | |
6583 | maps[nmaps++] = get_local_map (PT, current_buffer); | |
6584 | #else | |
6585 | maps[nmaps++] = current_buffer->keymap; | |
6586 | #endif | |
6587 | } | |
6588 | maps[nmaps++] = current_global_map; | |
6589 | ||
6590 | *maps_p = maps; | |
6591 | return nmaps; | |
6592 | } | |
284f4730 JB |
6593 | \f |
6594 | ||
6595 | detect_input_pending () | |
6596 | { | |
6597 | if (!input_pending) | |
6598 | get_input_pending (&input_pending); | |
6599 | ||
6600 | return input_pending; | |
6601 | } | |
6602 | ||
ffd56f97 JB |
6603 | /* This is called in some cases before a possible quit. |
6604 | It cases the next call to detect_input_pending to recompute input_pending. | |
6605 | So calling this function unnecessarily can't do any harm. */ | |
6606 | clear_input_pending () | |
6607 | { | |
6608 | input_pending = 0; | |
6609 | } | |
6610 | ||
284f4730 JB |
6611 | DEFUN ("input-pending-p", Finput_pending_p, Sinput_pending_p, 0, 0, 0, |
6612 | "T if command input is currently available with no waiting.\n\ | |
6613 | Actually, the value is nil only if we can be sure that no input is available.") | |
6614 | () | |
6615 | { | |
24597608 | 6616 | if (!NILP (Vunread_command_events) || unread_command_char != -1) |
284f4730 JB |
6617 | return (Qt); |
6618 | ||
6619 | return detect_input_pending () ? Qt : Qnil; | |
6620 | } | |
6621 | ||
6622 | DEFUN ("recent-keys", Frecent_keys, Srecent_keys, 0, 0, 0, | |
22d7cb89 | 6623 | "Return vector of last 100 events, not counting those from keyboard macros.") |
284f4730 JB |
6624 | () |
6625 | { | |
5160df46 | 6626 | Lisp_Object *keys = XVECTOR (recent_keys)->contents; |
284f4730 JB |
6627 | Lisp_Object val; |
6628 | ||
6629 | if (total_keys < NUM_RECENT_KEYS) | |
5160df46 | 6630 | return Fvector (total_keys, keys); |
284f4730 JB |
6631 | else |
6632 | { | |
5160df46 JB |
6633 | val = Fvector (NUM_RECENT_KEYS, keys); |
6634 | bcopy (keys + recent_keys_index, | |
284f4730 JB |
6635 | XVECTOR (val)->contents, |
6636 | (NUM_RECENT_KEYS - recent_keys_index) * sizeof (Lisp_Object)); | |
5160df46 | 6637 | bcopy (keys, |
284f4730 JB |
6638 | XVECTOR (val)->contents + NUM_RECENT_KEYS - recent_keys_index, |
6639 | recent_keys_index * sizeof (Lisp_Object)); | |
6640 | return val; | |
6641 | } | |
6642 | } | |
6643 | ||
6644 | DEFUN ("this-command-keys", Fthis_command_keys, Sthis_command_keys, 0, 0, 0, | |
e5f920d7 RS |
6645 | "Return the key sequence that invoked this command.\n\ |
6646 | The value is a string or a vector.") | |
284f4730 JB |
6647 | () |
6648 | { | |
86e5706b RS |
6649 | return make_event_array (this_command_key_count, |
6650 | XVECTOR (this_command_keys)->contents); | |
284f4730 JB |
6651 | } |
6652 | ||
71918b75 RS |
6653 | DEFUN ("reset-this-command-lengths", Freset_this_command_lengths, |
6654 | Sreset_this_command_lengths, 0, 0, 0, | |
6655 | "Used for complicated reasons in `universal-argument-other-key'.\n\ | |
6656 | \n\ | |
6657 | `universal-argument-other-key' rereads the event just typed.\n\ | |
6658 | It then gets translated through `function-key-map'.\n\ | |
6659 | The translated event gets included in the echo area and in\n\ | |
6660 | the value of `this-command-keys' in addition to the raw original event.\n\ | |
6661 | That is not right.\n\ | |
6662 | \n\ | |
6663 | Calling this function directs the translated event to replace\n\ | |
6664 | the original event, so that only one version of the event actually\n\ | |
6665 | appears in the echo area and in the value of `this-command-keys.'.") | |
6666 | () | |
6667 | { | |
6668 | before_command_restore_flag = 1; | |
6669 | before_command_key_count_1 = before_command_key_count; | |
6670 | before_command_echo_length_1 = before_command_echo_length; | |
6671 | } | |
6672 | ||
284f4730 JB |
6673 | DEFUN ("recursion-depth", Frecursion_depth, Srecursion_depth, 0, 0, 0, |
6674 | "Return the current depth in recursive edits.") | |
6675 | () | |
6676 | { | |
6677 | Lisp_Object temp; | |
bb9e9bed | 6678 | XSETFASTINT (temp, command_loop_level + minibuf_level); |
284f4730 JB |
6679 | return temp; |
6680 | } | |
6681 | ||
6682 | DEFUN ("open-dribble-file", Fopen_dribble_file, Sopen_dribble_file, 1, 1, | |
6683 | "FOpen dribble file: ", | |
9b2471df RS |
6684 | "Start writing all keyboard characters to a dribble file called FILE.\n\ |
6685 | If FILE is nil, close any open dribble file.") | |
284f4730 JB |
6686 | (file) |
6687 | Lisp_Object file; | |
6688 | { | |
6689 | if (NILP (file)) | |
6690 | { | |
d0011c11 RS |
6691 | if (dribble) |
6692 | { | |
6693 | fclose (dribble); | |
6694 | dribble = 0; | |
6695 | } | |
284f4730 JB |
6696 | } |
6697 | else | |
6698 | { | |
6699 | file = Fexpand_file_name (file, Qnil); | |
6700 | dribble = fopen (XSTRING (file)->data, "w"); | |
6701 | } | |
6702 | return Qnil; | |
6703 | } | |
6704 | ||
6705 | DEFUN ("discard-input", Fdiscard_input, Sdiscard_input, 0, 0, 0, | |
6706 | "Discard the contents of the terminal input buffer.\n\ | |
6707 | Also cancel any kbd macro being defined.") | |
6708 | () | |
6709 | { | |
c5fdd383 | 6710 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 JB |
6711 | update_mode_lines++; |
6712 | ||
24597608 | 6713 | Vunread_command_events = Qnil; |
86e5706b | 6714 | unread_command_char = -1; |
284f4730 JB |
6715 | |
6716 | discard_tty_input (); | |
6717 | ||
ff0b5f4c JB |
6718 | /* Without the cast, GCC complains that this assignment loses the |
6719 | volatile qualifier of kbd_store_ptr. Is there anything wrong | |
6720 | with that? */ | |
beecf6a1 KH |
6721 | kbd_fetch_ptr = (struct input_event *) kbd_store_ptr; |
6722 | Ffillarray (kbd_buffer_frame_or_window, Qnil); | |
284f4730 JB |
6723 | input_pending = 0; |
6724 | ||
6725 | return Qnil; | |
6726 | } | |
6727 | \f | |
6728 | DEFUN ("suspend-emacs", Fsuspend_emacs, Ssuspend_emacs, 0, 1, "", | |
6729 | "Stop Emacs and return to superior process. You can resume later.\n\ | |
8026024c KH |
6730 | If `cannot-suspend' is non-nil, or if the system doesn't support job\n\ |
6731 | control, run a subshell instead.\n\n\ | |
284f4730 | 6732 | If optional arg STUFFSTRING is non-nil, its characters are stuffed\n\ |
b7d2ebbf RS |
6733 | to be read as terminal input by Emacs's parent, after suspension.\n\ |
6734 | \n\ | |
bbdc2092 RS |
6735 | Before suspending, run the normal hook `suspend-hook'.\n\ |
6736 | After resumption run the normal hook `suspend-resume-hook'.\n\ | |
284f4730 JB |
6737 | \n\ |
6738 | Some operating systems cannot stop the Emacs process and resume it later.\n\ | |
b7d2ebbf | 6739 | On such systems, Emacs starts a subshell instead of suspending.") |
284f4730 JB |
6740 | (stuffstring) |
6741 | Lisp_Object stuffstring; | |
6742 | { | |
3a69360c | 6743 | Lisp_Object tem; |
284f4730 JB |
6744 | int count = specpdl_ptr - specpdl; |
6745 | int old_height, old_width; | |
6746 | int width, height; | |
b7d2ebbf | 6747 | struct gcpro gcpro1, gcpro2; |
284f4730 JB |
6748 | extern init_sys_modes (); |
6749 | ||
6750 | if (!NILP (stuffstring)) | |
6751 | CHECK_STRING (stuffstring, 0); | |
284f4730 | 6752 | |
1e95ed28 JB |
6753 | /* Run the functions in suspend-hook. */ |
6754 | if (!NILP (Vrun_hooks)) | |
6755 | call1 (Vrun_hooks, intern ("suspend-hook")); | |
284f4730 | 6756 | |
b7d2ebbf | 6757 | GCPRO1 (stuffstring); |
ff11dfa1 | 6758 | get_frame_size (&old_width, &old_height); |
284f4730 JB |
6759 | reset_sys_modes (); |
6760 | /* sys_suspend can get an error if it tries to fork a subshell | |
6761 | and the system resources aren't available for that. */ | |
6762 | record_unwind_protect (init_sys_modes, 0); | |
6763 | stuff_buffered_input (stuffstring); | |
8026024c KH |
6764 | if (cannot_suspend) |
6765 | sys_subshell (); | |
6766 | else | |
6767 | sys_suspend (); | |
284f4730 JB |
6768 | unbind_to (count, Qnil); |
6769 | ||
6770 | /* Check if terminal/window size has changed. | |
6771 | Note that this is not useful when we are running directly | |
6772 | with a window system; but suspend should be disabled in that case. */ | |
ff11dfa1 | 6773 | get_frame_size (&width, &height); |
284f4730 | 6774 | if (width != old_width || height != old_height) |
f5ea6163 | 6775 | change_frame_size (selected_frame, height, width, 0, 0); |
284f4730 | 6776 | |
1e95ed28 | 6777 | /* Run suspend-resume-hook. */ |
284f4730 JB |
6778 | if (!NILP (Vrun_hooks)) |
6779 | call1 (Vrun_hooks, intern ("suspend-resume-hook")); | |
df0f2ba1 | 6780 | |
284f4730 JB |
6781 | UNGCPRO; |
6782 | return Qnil; | |
6783 | } | |
6784 | ||
6785 | /* If STUFFSTRING is a string, stuff its contents as pending terminal input. | |
eb8c3be9 | 6786 | Then in any case stuff anything Emacs has read ahead and not used. */ |
284f4730 JB |
6787 | |
6788 | stuff_buffered_input (stuffstring) | |
6789 | Lisp_Object stuffstring; | |
6790 | { | |
284f4730 JB |
6791 | /* stuff_char works only in BSD, versions 4.2 and up. */ |
6792 | #ifdef BSD | |
6793 | #ifndef BSD4_1 | |
612b78ef | 6794 | register unsigned char *p; |
612b78ef | 6795 | |
8c18cbfb | 6796 | if (STRINGP (stuffstring)) |
284f4730 JB |
6797 | { |
6798 | register int count; | |
6799 | ||
6800 | p = XSTRING (stuffstring)->data; | |
6801 | count = XSTRING (stuffstring)->size; | |
6802 | while (count-- > 0) | |
6803 | stuff_char (*p++); | |
6804 | stuff_char ('\n'); | |
6805 | } | |
6806 | /* Anything we have read ahead, put back for the shell to read. */ | |
beecf6a1 | 6807 | /* ?? What should this do when we have multiple keyboards?? |
c5fdd383 | 6808 | Should we ignore anything that was typed in at the "wrong" kboard? */ |
beecf6a1 | 6809 | for (; kbd_fetch_ptr != kbd_store_ptr; kbd_fetch_ptr++) |
284f4730 | 6810 | { |
beecf6a1 KH |
6811 | if (kbd_fetch_ptr == kbd_buffer + KBD_BUFFER_SIZE) |
6812 | kbd_fetch_ptr = kbd_buffer; | |
6813 | if (kbd_fetch_ptr->kind == ascii_keystroke) | |
6814 | stuff_char (kbd_fetch_ptr->code); | |
6815 | kbd_fetch_ptr->kind = no_event; | |
6816 | (XVECTOR (kbd_buffer_frame_or_window)->contents[kbd_fetch_ptr | |
6817 | - kbd_buffer] | |
7b4aedb9 | 6818 | = Qnil); |
284f4730 JB |
6819 | } |
6820 | input_pending = 0; | |
6821 | #endif | |
6822 | #endif /* BSD and not BSD4_1 */ | |
6823 | } | |
6824 | \f | |
ffd56f97 JB |
6825 | set_waiting_for_input (time_to_clear) |
6826 | EMACS_TIME *time_to_clear; | |
284f4730 | 6827 | { |
ffd56f97 | 6828 | input_available_clear_time = time_to_clear; |
284f4730 JB |
6829 | |
6830 | /* Tell interrupt_signal to throw back to read_char, */ | |
6831 | waiting_for_input = 1; | |
6832 | ||
6833 | /* If interrupt_signal was called before and buffered a C-g, | |
6834 | make it run again now, to avoid timing error. */ | |
6835 | if (!NILP (Vquit_flag)) | |
6836 | quit_throw_to_read_char (); | |
284f4730 JB |
6837 | } |
6838 | ||
6839 | clear_waiting_for_input () | |
6840 | { | |
6841 | /* Tell interrupt_signal not to throw back to read_char, */ | |
6842 | waiting_for_input = 0; | |
ffd56f97 | 6843 | input_available_clear_time = 0; |
284f4730 JB |
6844 | } |
6845 | ||
6846 | /* This routine is called at interrupt level in response to C-G. | |
6847 | If interrupt_input, this is the handler for SIGINT. | |
6848 | Otherwise, it is called from kbd_buffer_store_event, | |
6849 | in handling SIGIO or SIGTINT. | |
6850 | ||
6851 | If `waiting_for_input' is non zero, then unless `echoing' is nonzero, | |
6852 | immediately throw back to read_char. | |
6853 | ||
6854 | Otherwise it sets the Lisp variable quit-flag not-nil. | |
6855 | This causes eval to throw, when it gets a chance. | |
6856 | If quit-flag is already non-nil, it stops the job right away. */ | |
6857 | ||
6858 | SIGTYPE | |
91c049d4 RS |
6859 | interrupt_signal (signalnum) /* If we don't have an argument, */ |
6860 | int signalnum; /* some compilers complain in signal calls. */ | |
284f4730 JB |
6861 | { |
6862 | char c; | |
6863 | /* Must preserve main program's value of errno. */ | |
6864 | int old_errno = errno; | |
284f4730 JB |
6865 | |
6866 | #ifdef USG | |
7a80a6f6 RS |
6867 | if (!read_socket_hook && NILP (Vwindow_system)) |
6868 | { | |
6869 | /* USG systems forget handlers when they are used; | |
6870 | must reestablish each time */ | |
6871 | signal (SIGINT, interrupt_signal); | |
6872 | signal (SIGQUIT, interrupt_signal); | |
6873 | } | |
284f4730 JB |
6874 | #endif /* USG */ |
6875 | ||
6876 | cancel_echoing (); | |
6877 | ||
d5045cf9 | 6878 | if (!NILP (Vquit_flag) && FRAME_TERMCAP_P (selected_frame)) |
284f4730 JB |
6879 | { |
6880 | fflush (stdout); | |
6881 | reset_sys_modes (); | |
6882 | sigfree (); | |
6883 | #ifdef SIGTSTP /* Support possible in later USG versions */ | |
6884 | /* | |
6885 | * On systems which can suspend the current process and return to the original | |
6886 | * shell, this command causes the user to end up back at the shell. | |
6887 | * The "Auto-save" and "Abort" questions are not asked until | |
6888 | * the user elects to return to emacs, at which point he can save the current | |
6889 | * job and either dump core or continue. | |
6890 | */ | |
6891 | sys_suspend (); | |
6892 | #else | |
6893 | #ifdef VMS | |
6894 | if (sys_suspend () == -1) | |
6895 | { | |
6896 | printf ("Not running as a subprocess;\n"); | |
6897 | printf ("you can continue or abort.\n"); | |
6898 | } | |
6899 | #else /* not VMS */ | |
6900 | /* Perhaps should really fork an inferior shell? | |
6901 | But that would not provide any way to get back | |
6902 | to the original shell, ever. */ | |
6903 | printf ("No support for stopping a process on this operating system;\n"); | |
6904 | printf ("you can continue or abort.\n"); | |
6905 | #endif /* not VMS */ | |
6906 | #endif /* not SIGTSTP */ | |
80e4aa30 RS |
6907 | #ifdef MSDOS |
6908 | /* We must remain inside the screen area when the internal terminal | |
6909 | is used. Note that [Enter] is not echoed by dos. */ | |
6910 | cursor_to (0, 0); | |
6911 | #endif | |
118d6ca9 RS |
6912 | /* It doesn't work to autosave while GC is in progress; |
6913 | the code used for auto-saving doesn't cope with the mark bit. */ | |
6914 | if (!gc_in_progress) | |
9fd7d808 | 6915 | { |
118d6ca9 RS |
6916 | printf ("Auto-save? (y or n) "); |
6917 | fflush (stdout); | |
6918 | if (((c = getchar ()) & ~040) == 'Y') | |
6919 | { | |
6920 | Fdo_auto_save (Qt, Qnil); | |
80e4aa30 | 6921 | #ifdef MSDOS |
118d6ca9 | 6922 | printf ("\r\nAuto-save done"); |
80e4aa30 | 6923 | #else /* not MSDOS */ |
118d6ca9 | 6924 | printf ("Auto-save done\n"); |
80e4aa30 | 6925 | #endif /* not MSDOS */ |
118d6ca9 RS |
6926 | } |
6927 | while (c != '\n') c = getchar (); | |
9fd7d808 | 6928 | } |
118d6ca9 RS |
6929 | else |
6930 | { | |
6931 | /* During GC, it must be safe to reenable quitting again. */ | |
6932 | Vinhibit_quit = Qnil; | |
6933 | #ifdef MSDOS | |
6934 | printf ("\r\n"); | |
6935 | #endif /* not MSDOS */ | |
6936 | printf ("Garbage collection in progress; cannot auto-save now\r\n"); | |
6937 | printf ("but will instead do a real quit after garbage collection ends\r\n"); | |
6938 | fflush (stdout); | |
6939 | } | |
6940 | ||
80e4aa30 RS |
6941 | #ifdef MSDOS |
6942 | printf ("\r\nAbort? (y or n) "); | |
6943 | #else /* not MSDOS */ | |
284f4730 JB |
6944 | #ifdef VMS |
6945 | printf ("Abort (and enter debugger)? (y or n) "); | |
6946 | #else /* not VMS */ | |
6947 | printf ("Abort (and dump core)? (y or n) "); | |
6948 | #endif /* not VMS */ | |
80e4aa30 | 6949 | #endif /* not MSDOS */ |
284f4730 JB |
6950 | fflush (stdout); |
6951 | if (((c = getchar ()) & ~040) == 'Y') | |
6952 | abort (); | |
6953 | while (c != '\n') c = getchar (); | |
80e4aa30 RS |
6954 | #ifdef MSDOS |
6955 | printf ("\r\nContinuing...\r\n"); | |
6956 | #else /* not MSDOS */ | |
284f4730 | 6957 | printf ("Continuing...\n"); |
80e4aa30 | 6958 | #endif /* not MSDOS */ |
284f4730 JB |
6959 | fflush (stdout); |
6960 | init_sys_modes (); | |
6961 | } | |
6962 | else | |
6963 | { | |
6964 | /* If executing a function that wants to be interrupted out of | |
6965 | and the user has not deferred quitting by binding `inhibit-quit' | |
6966 | then quit right away. */ | |
6967 | if (immediate_quit && NILP (Vinhibit_quit)) | |
6968 | { | |
6969 | immediate_quit = 0; | |
6970 | sigfree (); | |
6971 | Fsignal (Qquit, Qnil); | |
6972 | } | |
6973 | else | |
6974 | /* Else request quit when it's safe */ | |
6975 | Vquit_flag = Qt; | |
6976 | } | |
6977 | ||
6978 | if (waiting_for_input && !echoing) | |
6979 | quit_throw_to_read_char (); | |
6980 | ||
6981 | errno = old_errno; | |
6982 | } | |
6983 | ||
6984 | /* Handle a C-g by making read_char return C-g. */ | |
6985 | ||
6986 | quit_throw_to_read_char () | |
6987 | { | |
6988 | quit_error_check (); | |
6989 | sigfree (); | |
6990 | /* Prevent another signal from doing this before we finish. */ | |
f76475ad | 6991 | clear_waiting_for_input (); |
284f4730 JB |
6992 | input_pending = 0; |
6993 | ||
24597608 | 6994 | Vunread_command_events = Qnil; |
86e5706b | 6995 | unread_command_char = -1; |
284f4730 | 6996 | |
087feab3 RS |
6997 | #if 0 /* Currently, sit_for is called from read_char without turning |
6998 | off polling. And that can call set_waiting_for_input. | |
6999 | It seems to be harmless. */ | |
e6b01c14 JB |
7000 | #ifdef POLL_FOR_INPUT |
7001 | /* May be > 1 if in recursive minibuffer. */ | |
7002 | if (poll_suppress_count == 0) | |
7003 | abort (); | |
7004 | #endif | |
087feab3 | 7005 | #endif |
0dfcc832 | 7006 | #ifdef MULTI_FRAME |
4c52b668 KH |
7007 | if (FRAMEP (internal_last_event_frame) |
7008 | && XFRAME (internal_last_event_frame) != selected_frame) | |
719191cf RS |
7009 | do_switch_frame (make_lispy_switch_frame (internal_last_event_frame), |
7010 | Qnil, 0); | |
0dfcc832 | 7011 | #endif |
e6b01c14 | 7012 | |
284f4730 JB |
7013 | _longjmp (getcjmp, 1); |
7014 | } | |
7015 | \f | |
7016 | DEFUN ("set-input-mode", Fset_input_mode, Sset_input_mode, 3, 4, 0, | |
7017 | "Set mode of reading keyboard input.\n\ | |
464f8898 RS |
7018 | First arg INTERRUPT non-nil means use input interrupts;\n\ |
7019 | nil means use CBREAK mode.\n\ | |
7020 | Second arg FLOW non-nil means use ^S/^Q flow control for output to terminal\n\ | |
284f4730 | 7021 | (no effect except in CBREAK mode).\n\ |
b04904fb RS |
7022 | Third arg META t means accept 8-bit input (for a Meta key).\n\ |
7023 | META nil means ignore the top bit, on the assumption it is parity.\n\ | |
7024 | Otherwise, accept 8-bit input and don't use the top bit for Meta.\n\ | |
a8ee7ef9 RS |
7025 | Optional fourth arg QUIT if non-nil specifies character to use for quitting.\n\ |
7026 | See also `current-input-mode'.") | |
284f4730 JB |
7027 | (interrupt, flow, meta, quit) |
7028 | Lisp_Object interrupt, flow, meta, quit; | |
7029 | { | |
7030 | if (!NILP (quit) | |
8c18cbfb | 7031 | && (!INTEGERP (quit) || XINT (quit) < 0 || XINT (quit) > 0400)) |
34f04431 RS |
7032 | error ("set-input-mode: QUIT must be an ASCII character"); |
7033 | ||
7034 | #ifdef POLL_FOR_INPUT | |
7035 | stop_polling (); | |
7036 | #endif | |
284f4730 | 7037 | |
2ee250ec RS |
7038 | #ifndef MSDOS |
7039 | /* this causes startup screen to be restored and messes with the mouse */ | |
284f4730 | 7040 | reset_sys_modes (); |
2ee250ec RS |
7041 | #endif |
7042 | ||
284f4730 JB |
7043 | #ifdef SIGIO |
7044 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
284f4730 | 7045 | if (read_socket_hook) |
9a0f60bb KH |
7046 | { |
7047 | /* When using X, don't give the user a real choice, | |
7048 | because we haven't implemented the mechanisms to support it. */ | |
7049 | #ifdef NO_SOCK_SIGIO | |
7050 | interrupt_input = 0; | |
7051 | #else /* not NO_SOCK_SIGIO */ | |
7052 | interrupt_input = 1; | |
284f4730 | 7053 | #endif /* NO_SOCK_SIGIO */ |
9a0f60bb KH |
7054 | } |
7055 | else | |
284f4730 JB |
7056 | interrupt_input = !NILP (interrupt); |
7057 | #else /* not SIGIO */ | |
7058 | interrupt_input = 0; | |
7059 | #endif /* not SIGIO */ | |
9a0f60bb | 7060 | |
284f4730 JB |
7061 | /* Our VMS input only works by interrupts, as of now. */ |
7062 | #ifdef VMS | |
7063 | interrupt_input = 1; | |
7064 | #endif | |
9a0f60bb | 7065 | |
284f4730 | 7066 | flow_control = !NILP (flow); |
b04904fb RS |
7067 | if (NILP (meta)) |
7068 | meta_key = 0; | |
7069 | else if (EQ (meta, Qt)) | |
7070 | meta_key = 1; | |
7071 | else | |
7072 | meta_key = 2; | |
284f4730 JB |
7073 | if (!NILP (quit)) |
7074 | /* Don't let this value be out of range. */ | |
7075 | quit_char = XINT (quit) & (meta_key ? 0377 : 0177); | |
7076 | ||
2ee250ec | 7077 | #ifndef MSDOS |
284f4730 | 7078 | init_sys_modes (); |
2ee250ec | 7079 | #endif |
34f04431 RS |
7080 | |
7081 | #ifdef POLL_FOR_INPUT | |
7082 | poll_suppress_count = 1; | |
7083 | start_polling (); | |
7084 | #endif | |
284f4730 JB |
7085 | return Qnil; |
7086 | } | |
80645119 JB |
7087 | |
7088 | DEFUN ("current-input-mode", Fcurrent_input_mode, Scurrent_input_mode, 0, 0, 0, | |
7089 | "Return information about the way Emacs currently reads keyboard input.\n\ | |
7090 | The value is a list of the form (INTERRUPT FLOW META QUIT), where\n\ | |
7091 | INTERRUPT is non-nil if Emacs is using interrupt-driven input; if\n\ | |
7092 | nil, Emacs is using CBREAK mode.\n\ | |
7093 | FLOW is non-nil if Emacs uses ^S/^Q flow control for output to the\n\ | |
7094 | terminal; this does not apply if Emacs uses interrupt-driven input.\n\ | |
a8ee7ef9 RS |
7095 | META is t if accepting 8-bit input with 8th bit as Meta flag.\n\ |
7096 | META nil means ignoring the top bit, on the assumption it is parity.\n\ | |
7097 | META is neither t nor nil if accepting 8-bit input and using\n\ | |
7098 | all 8 bits as the character code.\n\ | |
80645119 JB |
7099 | QUIT is the character Emacs currently uses to quit.\n\ |
7100 | The elements of this list correspond to the arguments of\n\ | |
a8ee7ef9 | 7101 | `set-input-mode'.") |
80645119 JB |
7102 | () |
7103 | { | |
7104 | Lisp_Object val[4]; | |
7105 | ||
7106 | val[0] = interrupt_input ? Qt : Qnil; | |
7107 | val[1] = flow_control ? Qt : Qnil; | |
a8ee7ef9 | 7108 | val[2] = meta_key == 2 ? make_number (0) : meta_key == 1 ? Qt : Qnil; |
bb9e9bed | 7109 | XSETFASTINT (val[3], quit_char); |
80645119 | 7110 | |
bf673a7a | 7111 | return Flist (sizeof (val) / sizeof (val[0]), val); |
80645119 JB |
7112 | } |
7113 | ||
284f4730 | 7114 | \f |
6c6083a9 | 7115 | /* |
c5fdd383 | 7116 | * Set up a new kboard object with reasonable initial values. |
6c6083a9 KH |
7117 | */ |
7118 | void | |
c5fdd383 KH |
7119 | init_kboard (kb) |
7120 | KBOARD *kb; | |
6c6083a9 | 7121 | { |
217258d5 | 7122 | kb->Voverriding_terminal_local_map = Qnil; |
6c7178b9 | 7123 | kb->Vlast_command = Qnil; |
d8bcf58e | 7124 | kb->Vprefix_arg = Qnil; |
c5fdd383 KH |
7125 | kb->kbd_queue = Qnil; |
7126 | kb->kbd_queue_has_data = 0; | |
7127 | kb->immediate_echo = 0; | |
7128 | kb->echoptr = kb->echobuf; | |
7129 | kb->echo_after_prompt = -1; | |
7130 | kb->kbd_macro_buffer = 0; | |
7131 | kb->kbd_macro_bufsize = 0; | |
7132 | kb->defining_kbd_macro = Qnil; | |
7133 | kb->Vlast_kbd_macro = Qnil; | |
7134 | kb->reference_count = 0; | |
7c97ffdc | 7135 | kb->Vsystem_key_alist = Qnil; |
142e6c73 | 7136 | kb->system_key_syms = Qnil; |
9ba47203 | 7137 | kb->Vdefault_minibuffer_frame = Qnil; |
6c6083a9 KH |
7138 | } |
7139 | ||
7140 | /* | |
c5fdd383 | 7141 | * Destroy the contents of a kboard object, but not the object itself. |
8e6208c5 | 7142 | * We use this just before deleting it, or if we're going to initialize |
6c6083a9 KH |
7143 | * it a second time. |
7144 | */ | |
e50b8090 | 7145 | static void |
c5fdd383 KH |
7146 | wipe_kboard (kb) |
7147 | KBOARD *kb; | |
6c6083a9 | 7148 | { |
c5fdd383 KH |
7149 | if (kb->kbd_macro_buffer) |
7150 | xfree (kb->kbd_macro_buffer); | |
6c6083a9 KH |
7151 | } |
7152 | ||
e50b8090 KH |
7153 | #ifdef MULTI_KBOARD |
7154 | void | |
7155 | delete_kboard (kb) | |
7156 | KBOARD *kb; | |
7157 | { | |
7158 | KBOARD **kbp; | |
7159 | for (kbp = &all_kboards; *kbp != kb; kbp = &(*kbp)->next_kboard) | |
7160 | if (*kbp == NULL) | |
7161 | abort (); | |
7162 | *kbp = kb->next_kboard; | |
7163 | wipe_kboard (kb); | |
7164 | xfree (kb); | |
7165 | } | |
7166 | #endif | |
7167 | ||
284f4730 JB |
7168 | init_keyboard () |
7169 | { | |
284f4730 JB |
7170 | /* This is correct before outermost invocation of the editor loop */ |
7171 | command_loop_level = -1; | |
7172 | immediate_quit = 0; | |
7173 | quit_char = Ctl ('g'); | |
24597608 | 7174 | Vunread_command_events = Qnil; |
86e5706b | 7175 | unread_command_char = -1; |
284f4730 | 7176 | total_keys = 0; |
9deb415a | 7177 | recent_keys_index = 0; |
beecf6a1 KH |
7178 | kbd_fetch_ptr = kbd_buffer; |
7179 | kbd_store_ptr = kbd_buffer; | |
7180 | kbd_buffer_frame_or_window | |
7181 | = Fmake_vector (make_number (KBD_BUFFER_SIZE), Qnil); | |
2eb6bfbe | 7182 | #ifdef HAVE_MOUSE |
a9d77f1f | 7183 | do_mouse_tracking = Qnil; |
2eb6bfbe | 7184 | #endif |
284f4730 JB |
7185 | input_pending = 0; |
7186 | ||
4c52b668 KH |
7187 | #ifdef MULTI_FRAME |
7188 | /* This means that command_loop_1 won't try to select anything the first | |
7189 | time through. */ | |
7190 | internal_last_event_frame = Qnil; | |
7191 | Vlast_event_frame = internal_last_event_frame; | |
7192 | #endif | |
7193 | ||
c5fdd383 | 7194 | #ifdef MULTI_KBOARD |
aaca43a1 | 7195 | current_kboard = initial_kboard; |
6c6083a9 | 7196 | #endif |
aaca43a1 | 7197 | wipe_kboard (current_kboard); |
c5fdd383 | 7198 | init_kboard (current_kboard); |
07d2b8de | 7199 | |
beecf6a1 KH |
7200 | if (initialized) |
7201 | Ffillarray (kbd_buffer_frame_or_window, Qnil); | |
7202 | ||
7203 | kbd_buffer_frame_or_window | |
7204 | = Fmake_vector (make_number (KBD_BUFFER_SIZE), Qnil); | |
7a80a6f6 | 7205 | if (!noninteractive && !read_socket_hook && NILP (Vwindow_system)) |
284f4730 JB |
7206 | { |
7207 | signal (SIGINT, interrupt_signal); | |
cb5df6ae | 7208 | #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS) |
284f4730 JB |
7209 | /* For systems with SysV TERMIO, C-g is set up for both SIGINT and |
7210 | SIGQUIT and we can't tell which one it will give us. */ | |
7211 | signal (SIGQUIT, interrupt_signal); | |
7212 | #endif /* HAVE_TERMIO */ | |
7a80a6f6 | 7213 | } |
284f4730 JB |
7214 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ |
7215 | #ifdef SIGIO | |
7a80a6f6 RS |
7216 | if (!noninteractive) |
7217 | signal (SIGIO, input_available_signal); | |
8ea0a720 | 7218 | #endif /* SIGIO */ |
284f4730 JB |
7219 | |
7220 | /* Use interrupt input by default, if it works and noninterrupt input | |
7221 | has deficiencies. */ | |
7222 | ||
7223 | #ifdef INTERRUPT_INPUT | |
7224 | interrupt_input = 1; | |
7225 | #else | |
7226 | interrupt_input = 0; | |
7227 | #endif | |
7228 | ||
7229 | /* Our VMS input only works by interrupts, as of now. */ | |
7230 | #ifdef VMS | |
7231 | interrupt_input = 1; | |
7232 | #endif | |
7233 | ||
7234 | sigfree (); | |
7235 | dribble = 0; | |
7236 | ||
7237 | if (keyboard_init_hook) | |
7238 | (*keyboard_init_hook) (); | |
7239 | ||
7240 | #ifdef POLL_FOR_INPUT | |
7241 | poll_suppress_count = 1; | |
7242 | start_polling (); | |
7243 | #endif | |
7244 | } | |
7245 | ||
df0f2ba1 | 7246 | /* This type's only use is in syms_of_keyboard, to initialize the |
284f4730 JB |
7247 | event header symbols and put properties on them. */ |
7248 | struct event_head { | |
7249 | Lisp_Object *var; | |
7250 | char *name; | |
7251 | Lisp_Object *kind; | |
7252 | }; | |
7253 | ||
7254 | struct event_head head_table[] = { | |
7b4aedb9 | 7255 | &Qmouse_movement, "mouse-movement", &Qmouse_movement, |
3c370943 | 7256 | &Qscroll_bar_movement, "scroll-bar-movement", &Qmouse_movement, |
7b4aedb9 | 7257 | &Qswitch_frame, "switch-frame", &Qswitch_frame, |
bbdc2092 | 7258 | &Qdelete_frame, "delete-frame", &Qdelete_frame, |
af17bd2b KH |
7259 | &Qiconify_frame, "iconify-frame", &Qiconify_frame, |
7260 | &Qmake_frame_visible, "make-frame-visible", &Qmake_frame_visible, | |
284f4730 JB |
7261 | }; |
7262 | ||
7263 | syms_of_keyboard () | |
7264 | { | |
2e894dab RS |
7265 | Qdisabled_command_hook = intern ("disabled-command-hook"); |
7266 | staticpro (&Qdisabled_command_hook); | |
7267 | ||
284f4730 JB |
7268 | Qself_insert_command = intern ("self-insert-command"); |
7269 | staticpro (&Qself_insert_command); | |
7270 | ||
7271 | Qforward_char = intern ("forward-char"); | |
7272 | staticpro (&Qforward_char); | |
7273 | ||
7274 | Qbackward_char = intern ("backward-char"); | |
7275 | staticpro (&Qbackward_char); | |
7276 | ||
7277 | Qdisabled = intern ("disabled"); | |
7278 | staticpro (&Qdisabled); | |
7279 | ||
e58aa385 RS |
7280 | Qundefined = intern ("undefined"); |
7281 | staticpro (&Qundefined); | |
7282 | ||
86e5706b RS |
7283 | Qpre_command_hook = intern ("pre-command-hook"); |
7284 | staticpro (&Qpre_command_hook); | |
7285 | ||
7286 | Qpost_command_hook = intern ("post-command-hook"); | |
7287 | staticpro (&Qpost_command_hook); | |
7288 | ||
59aadc81 RS |
7289 | Qpost_command_idle_hook = intern ("post-command-idle-hook"); |
7290 | staticpro (&Qpost_command_idle_hook); | |
7291 | ||
3ef14e46 RS |
7292 | Qdeferred_action_function = intern ("deferred-action-function"); |
7293 | staticpro (&Qdeferred_action_function); | |
7294 | ||
40932d1a RS |
7295 | Qcommand_hook_internal = intern ("command-hook-internal"); |
7296 | staticpro (&Qcommand_hook_internal); | |
7297 | ||
284f4730 JB |
7298 | Qfunction_key = intern ("function-key"); |
7299 | staticpro (&Qfunction_key); | |
13b5e56c | 7300 | Qmouse_click = intern ("mouse-click"); |
284f4730 | 7301 | staticpro (&Qmouse_click); |
284f4730 | 7302 | |
598a9fa7 JB |
7303 | Qmenu_enable = intern ("menu-enable"); |
7304 | staticpro (&Qmenu_enable); | |
7305 | ||
284f4730 JB |
7306 | Qmode_line = intern ("mode-line"); |
7307 | staticpro (&Qmode_line); | |
e5d77022 JB |
7308 | Qvertical_line = intern ("vertical-line"); |
7309 | staticpro (&Qvertical_line); | |
3c370943 JB |
7310 | Qvertical_scroll_bar = intern ("vertical-scroll-bar"); |
7311 | staticpro (&Qvertical_scroll_bar); | |
5ec75a55 RS |
7312 | Qmenu_bar = intern ("menu-bar"); |
7313 | staticpro (&Qmenu_bar); | |
4bb994d1 JB |
7314 | |
7315 | Qabove_handle = intern ("above-handle"); | |
7316 | staticpro (&Qabove_handle); | |
7317 | Qhandle = intern ("handle"); | |
7318 | staticpro (&Qhandle); | |
7319 | Qbelow_handle = intern ("below-handle"); | |
7320 | staticpro (&Qbelow_handle); | |
284f4730 | 7321 | |
cd21b839 | 7322 | Qevent_kind = intern ("event-kind"); |
284f4730 | 7323 | staticpro (&Qevent_kind); |
88cb0656 JB |
7324 | Qevent_symbol_elements = intern ("event-symbol-elements"); |
7325 | staticpro (&Qevent_symbol_elements); | |
0a7f1fc0 JB |
7326 | Qevent_symbol_element_mask = intern ("event-symbol-element-mask"); |
7327 | staticpro (&Qevent_symbol_element_mask); | |
7328 | Qmodifier_cache = intern ("modifier-cache"); | |
7329 | staticpro (&Qmodifier_cache); | |
284f4730 | 7330 | |
48e416d4 RS |
7331 | Qrecompute_lucid_menubar = intern ("recompute-lucid-menubar"); |
7332 | staticpro (&Qrecompute_lucid_menubar); | |
7333 | Qactivate_menubar_hook = intern ("activate-menubar-hook"); | |
7334 | staticpro (&Qactivate_menubar_hook); | |
7335 | ||
f4eef8b4 RS |
7336 | Qpolling_period = intern ("polling-period"); |
7337 | staticpro (&Qpolling_period); | |
7338 | ||
284f4730 JB |
7339 | { |
7340 | struct event_head *p; | |
7341 | ||
7342 | for (p = head_table; | |
7343 | p < head_table + (sizeof (head_table) / sizeof (head_table[0])); | |
7344 | p++) | |
7345 | { | |
7346 | *p->var = intern (p->name); | |
7347 | staticpro (p->var); | |
7348 | Fput (*p->var, Qevent_kind, *p->kind); | |
88cb0656 | 7349 | Fput (*p->var, Qevent_symbol_elements, Fcons (*p->var, Qnil)); |
284f4730 JB |
7350 | } |
7351 | } | |
7352 | ||
7b4aedb9 JB |
7353 | button_down_location = Fmake_vector (make_number (NUM_MOUSE_BUTTONS), Qnil); |
7354 | staticpro (&button_down_location); | |
88cb0656 JB |
7355 | |
7356 | { | |
7357 | int i; | |
7358 | int len = sizeof (modifier_names) / sizeof (modifier_names[0]); | |
7359 | ||
7360 | modifier_symbols = Fmake_vector (make_number (len), Qnil); | |
7361 | for (i = 0; i < len; i++) | |
86e5706b RS |
7362 | if (modifier_names[i]) |
7363 | XVECTOR (modifier_symbols)->contents[i] = intern (modifier_names[i]); | |
88cb0656 JB |
7364 | staticpro (&modifier_symbols); |
7365 | } | |
7366 | ||
9deb415a JB |
7367 | recent_keys = Fmake_vector (make_number (NUM_RECENT_KEYS), Qnil); |
7368 | staticpro (&recent_keys); | |
7369 | ||
6569cc8d | 7370 | this_command_keys = Fmake_vector (make_number (40), Qnil); |
715d9345 | 7371 | staticpro (&this_command_keys); |
6569cc8d | 7372 | |
03b4122a BF |
7373 | Qextended_command_history = intern ("extended-command-history"); |
7374 | Fset (Qextended_command_history, Qnil); | |
7375 | staticpro (&Qextended_command_history); | |
7376 | ||
beecf6a1 KH |
7377 | kbd_buffer_frame_or_window |
7378 | = Fmake_vector (make_number (KBD_BUFFER_SIZE), Qnil); | |
7379 | staticpro (&kbd_buffer_frame_or_window); | |
7380 | ||
24597608 RS |
7381 | accent_key_syms = Qnil; |
7382 | staticpro (&accent_key_syms); | |
7383 | ||
284f4730 JB |
7384 | func_key_syms = Qnil; |
7385 | staticpro (&func_key_syms); | |
7386 | ||
7387 | mouse_syms = Qnil; | |
7388 | staticpro (&mouse_syms); | |
7389 | ||
cd21b839 JB |
7390 | unread_switch_frame = Qnil; |
7391 | staticpro (&unread_switch_frame); | |
7392 | ||
a1706c30 | 7393 | defsubr (&Sevent_convert_list); |
284f4730 JB |
7394 | defsubr (&Sread_key_sequence); |
7395 | defsubr (&Srecursive_edit); | |
2eb6bfbe | 7396 | #ifdef HAVE_MOUSE |
284f4730 | 7397 | defsubr (&Strack_mouse); |
2eb6bfbe | 7398 | #endif |
284f4730 JB |
7399 | defsubr (&Sinput_pending_p); |
7400 | defsubr (&Scommand_execute); | |
7401 | defsubr (&Srecent_keys); | |
7402 | defsubr (&Sthis_command_keys); | |
71918b75 | 7403 | defsubr (&Sreset_this_command_lengths); |
284f4730 JB |
7404 | defsubr (&Ssuspend_emacs); |
7405 | defsubr (&Sabort_recursive_edit); | |
7406 | defsubr (&Sexit_recursive_edit); | |
7407 | defsubr (&Srecursion_depth); | |
7408 | defsubr (&Stop_level); | |
7409 | defsubr (&Sdiscard_input); | |
7410 | defsubr (&Sopen_dribble_file); | |
7411 | defsubr (&Sset_input_mode); | |
80645119 | 7412 | defsubr (&Scurrent_input_mode); |
284f4730 JB |
7413 | defsubr (&Sexecute_extended_command); |
7414 | ||
284f4730 | 7415 | DEFVAR_LISP ("last-command-char", &last_command_char, |
86e5706b RS |
7416 | "Last input event that was part of a command."); |
7417 | ||
186cf719 | 7418 | DEFVAR_LISP_NOPRO ("last-command-event", &last_command_char, |
86e5706b | 7419 | "Last input event that was part of a command."); |
284f4730 | 7420 | |
7d6de002 | 7421 | DEFVAR_LISP ("last-nonmenu-event", &last_nonmenu_event, |
86e5706b | 7422 | "Last input event in a command, except for mouse menu events.\n\ |
7d6de002 RS |
7423 | Mouse menus give back keys that don't look like mouse events;\n\ |
7424 | this variable holds the actual mouse event that led to the menu,\n\ | |
7425 | so that you can determine whether the command was run by mouse or not."); | |
7426 | ||
284f4730 | 7427 | DEFVAR_LISP ("last-input-char", &last_input_char, |
86e5706b RS |
7428 | "Last input event."); |
7429 | ||
186cf719 | 7430 | DEFVAR_LISP_NOPRO ("last-input-event", &last_input_char, |
86e5706b | 7431 | "Last input event."); |
284f4730 | 7432 | |
24597608 | 7433 | DEFVAR_LISP ("unread-command-events", &Vunread_command_events, |
1c07d0a6 | 7434 | "List of objects to be read as next command input events."); |
284f4730 | 7435 | |
86e5706b RS |
7436 | DEFVAR_INT ("unread-command-char", &unread_command_char, |
7437 | "If not -1, an object to be read as next command input event."); | |
7438 | ||
284f4730 JB |
7439 | DEFVAR_LISP ("meta-prefix-char", &meta_prefix_char, |
7440 | "Meta-prefix character code. Meta-foo as command input\n\ | |
7441 | turns into this character followed by foo."); | |
18cd2eeb | 7442 | XSETINT (meta_prefix_char, 033); |
284f4730 | 7443 | |
6c7178b9 | 7444 | DEFVAR_KBOARD ("last-command", Vlast_command, |
284f4730 JB |
7445 | "The last command executed. Normally a symbol with a function definition,\n\ |
7446 | but can be whatever was found in the keymap, or whatever the variable\n\ | |
18f29056 RS |
7447 | `this-command' was set to by that command.\n\ |
7448 | \n\ | |
7449 | The value `mode-exit' is special; it means that the previous command\n\ | |
7450 | read an event that told it to exit, and it did so and unread that event.\n\ | |
7451 | In other words, the present command is the event that made the previous\n\ | |
7452 | command exit.\n\ | |
7453 | \n\ | |
7454 | The value `kill-region' is special; it means that the previous command\n\ | |
7455 | was a kill command."); | |
284f4730 JB |
7456 | |
7457 | DEFVAR_LISP ("this-command", &this_command, | |
7458 | "The command now being executed.\n\ | |
7459 | The command can set this variable; whatever is put here\n\ | |
7460 | will be in `last-command' during the following command."); | |
7461 | this_command = Qnil; | |
7462 | ||
7463 | DEFVAR_INT ("auto-save-interval", &auto_save_interval, | |
7464 | "*Number of keyboard input characters between auto-saves.\n\ | |
7465 | Zero means disable autosaving due to number of characters typed."); | |
7466 | auto_save_interval = 300; | |
7467 | ||
7468 | DEFVAR_LISP ("auto-save-timeout", &Vauto_save_timeout, | |
7469 | "*Number of seconds idle time before auto-save.\n\ | |
06ef7355 RS |
7470 | Zero or nil means disable auto-saving due to idleness.\n\ |
7471 | After auto-saving due to this many seconds of idle time,\n\ | |
84447c71 | 7472 | Emacs also does a garbage collection if that seems to be warranted."); |
bb9e9bed | 7473 | XSETFASTINT (Vauto_save_timeout, 30); |
284f4730 JB |
7474 | |
7475 | DEFVAR_INT ("echo-keystrokes", &echo_keystrokes, | |
7476 | "*Nonzero means echo unfinished commands after this many seconds of pause."); | |
7477 | echo_keystrokes = 1; | |
7478 | ||
7479 | DEFVAR_INT ("polling-period", &polling_period, | |
7480 | "*Interval between polling for input during Lisp execution.\n\ | |
7481 | The reason for polling is to make C-g work to stop a running program.\n\ | |
7482 | Polling is needed only when using X windows and SIGIO does not work.\n\ | |
7483 | Polling is automatically disabled in all other cases."); | |
7484 | polling_period = 2; | |
df0f2ba1 | 7485 | |
564dc952 | 7486 | DEFVAR_LISP ("double-click-time", &Vdouble_click_time, |
fbcd35bd | 7487 | "*Maximum time between mouse clicks to make a double-click.\n\ |
564dc952 JB |
7488 | Measured in milliseconds. nil means disable double-click recognition;\n\ |
7489 | t means double-clicks have no time limit and are detected\n\ | |
fbcd35bd | 7490 | by position only."); |
aab06933 | 7491 | Vdouble_click_time = make_number (500); |
fbcd35bd | 7492 | |
03361bcc RS |
7493 | DEFVAR_BOOL ("inhibit-local-menu-bar-menus", &inhibit_local_menu_bar_menus, |
7494 | "*Non-nil means inhibit local map menu bar menus."); | |
7495 | inhibit_local_menu_bar_menus = 0; | |
7496 | ||
284f4730 | 7497 | DEFVAR_INT ("num-input-keys", &num_input_keys, |
e0dff5f6 | 7498 | "Number of complete keys read from the keyboard so far."); |
284f4730 JB |
7499 | num_input_keys = 0; |
7500 | ||
4c52b668 KH |
7501 | DEFVAR_LISP ("last-event-frame", &Vlast_event_frame, |
7502 | "The frame in which the most recently read event occurred.\n\ | |
7503 | If the last event came from a keyboard macro, this is set to `macro'."); | |
7504 | Vlast_event_frame = Qnil; | |
7505 | ||
7e85b935 | 7506 | DEFVAR_LISP ("help-char", &Vhelp_char, |
284f4730 JB |
7507 | "Character to recognize as meaning Help.\n\ |
7508 | When it is read, do `(eval help-form)', and display result if it's a string.\n\ | |
7509 | If the value of `help-form' is nil, this char can be read normally."); | |
18cd2eeb | 7510 | XSETINT (Vhelp_char, Ctl ('H')); |
284f4730 | 7511 | |
ecb7cb34 KH |
7512 | DEFVAR_LISP ("help-event-list", &Vhelp_event_list, |
7513 | "List of input events to recognize as meaning Help.\n\ | |
7514 | These work just like the value of `help-char' (see that)."); | |
7515 | Vhelp_event_list = Qnil; | |
7516 | ||
284f4730 | 7517 | DEFVAR_LISP ("help-form", &Vhelp_form, |
7e85b935 | 7518 | "Form to execute when character `help-char' is read.\n\ |
284f4730 JB |
7519 | If the form returns a string, that string is displayed.\n\ |
7520 | If `help-form' is nil, the help char is not recognized."); | |
7521 | Vhelp_form = Qnil; | |
7522 | ||
7e85b935 RS |
7523 | DEFVAR_LISP ("prefix-help-command", &Vprefix_help_command, |
7524 | "Command to run when `help-char' character follows a prefix key.\n\ | |
7525 | This command is used only when there is no actual binding\n\ | |
7526 | for that character after that prefix key."); | |
7527 | Vprefix_help_command = Qnil; | |
7528 | ||
284f4730 JB |
7529 | DEFVAR_LISP ("top-level", &Vtop_level, |
7530 | "Form to evaluate when Emacs starts up.\n\ | |
7531 | Useful to set before you dump a modified Emacs."); | |
7532 | Vtop_level = Qnil; | |
7533 | ||
7534 | DEFVAR_LISP ("keyboard-translate-table", &Vkeyboard_translate_table, | |
f9414d62 | 7535 | "Translate table for keyboard input, or nil.\n\ |
284f4730 | 7536 | Each character is looked up in this string and the contents used instead.\n\ |
f9414d62 RS |
7537 | The value may be a string, a vector, or a char-table.\n\ |
7538 | If it is a string or vector of length N,\n\ | |
7539 | character codes N and up are untranslated.\n\ | |
7540 | In a vector or a char-table, an element which is nil means \"no translation\"."); | |
284f4730 JB |
7541 | Vkeyboard_translate_table = Qnil; |
7542 | ||
8026024c KH |
7543 | DEFVAR_BOOL ("cannot-suspend", &cannot_suspend, |
7544 | "Non-nil means to always spawn a subshell instead of suspending,\n\ | |
7545 | even if the operating system has support for stopping a process."); | |
7546 | cannot_suspend = 0; | |
7547 | ||
284f4730 | 7548 | DEFVAR_BOOL ("menu-prompting", &menu_prompting, |
7d6de002 | 7549 | "Non-nil means prompt with menus when appropriate.\n\ |
284f4730 | 7550 | This is done when reading from a keymap that has a prompt string,\n\ |
7d6de002 RS |
7551 | for elements that have prompt strings.\n\ |
7552 | The menu is displayed on the screen\n\ | |
7553 | if X menus were enabled at configuration\n\ | |
7554 | time and the previous event was a mouse click prefix key.\n\ | |
7555 | Otherwise, menu prompting uses the echo area."); | |
284f4730 JB |
7556 | menu_prompting = 1; |
7557 | ||
7558 | DEFVAR_LISP ("menu-prompt-more-char", &menu_prompt_more_char, | |
7559 | "Character to see next line of menu prompt.\n\ | |
7560 | Type this character while in a menu prompt to rotate around the lines of it."); | |
18cd2eeb | 7561 | XSETINT (menu_prompt_more_char, ' '); |
9fa4395d RS |
7562 | |
7563 | DEFVAR_INT ("extra-keyboard-modifiers", &extra_keyboard_modifiers, | |
7564 | "A mask of additional modifier keys to use with every keyboard character.\n\ | |
ad163903 JB |
7565 | Emacs applies the modifiers of the character stored here to each keyboard\n\ |
7566 | character it reads. For example, after evaluating the expression\n\ | |
9d9f56dd | 7567 | (setq extra-keyboard-modifiers ?\\C-x)\n\ |
80645119 JB |
7568 | all input characters will have the control modifier applied to them.\n\ |
7569 | \n\ | |
9d9f56dd | 7570 | Note that the character ?\\C-@, equivalent to the integer zero, does\n\ |
80645119 | 7571 | not count as a control character; rather, it counts as a character\n\ |
27203ead | 7572 | with no modifiers; thus, setting `extra-keyboard-modifiers' to zero\n\ |
80645119 | 7573 | cancels any modification."); |
9fa4395d | 7574 | extra_keyboard_modifiers = 0; |
86e5706b RS |
7575 | |
7576 | DEFVAR_LISP ("deactivate-mark", &Vdeactivate_mark, | |
7577 | "If an editing command sets this to t, deactivate the mark afterward.\n\ | |
7578 | The command loop sets this to nil before each command,\n\ | |
7579 | and tests the value when the command returns.\n\ | |
7580 | Buffer modification stores t in this variable."); | |
7581 | Vdeactivate_mark = Qnil; | |
7582 | ||
b0f2a7bf KH |
7583 | DEFVAR_LISP ("command-hook-internal", &Vcommand_hook_internal, |
7584 | "Temporary storage of pre-command-hook or post-command-hook."); | |
7585 | Vcommand_hook_internal = Qnil; | |
7586 | ||
86e5706b | 7587 | DEFVAR_LISP ("pre-command-hook", &Vpre_command_hook, |
a1fd42c0 | 7588 | "Normal hook run before each command is executed.\n\ |
59aadc81 | 7589 | Errors running the hook are caught and ignored."); |
86e5706b RS |
7590 | Vpre_command_hook = Qnil; |
7591 | ||
7592 | DEFVAR_LISP ("post-command-hook", &Vpost_command_hook, | |
a1fd42c0 | 7593 | "Normal hook run after each command is executed.\n\ |
59aadc81 | 7594 | Errors running the hook are caught and ignored."); |
86e5706b | 7595 | Vpost_command_hook = Qnil; |
48e416d4 | 7596 | |
59aadc81 RS |
7597 | DEFVAR_LISP ("post-command-idle-hook", &Vpost_command_idle_hook, |
7598 | "Normal hook run after each command is executed, if idle.\n\ | |
7599 | Errors running the hook are caught and ignored."); | |
7600 | Vpost_command_idle_hook = Qnil; | |
7601 | ||
7602 | DEFVAR_INT ("post-command-idle-delay", &post_command_idle_delay, | |
7603 | "Delay time before running `post-command-idle-delay'.\n\ | |
7604 | This is measured in microseconds."); | |
7605 | post_command_idle_delay = 100000; | |
7606 | ||
48e416d4 RS |
7607 | DEFVAR_LISP ("lucid-menu-bar-dirty-flag", &Vlucid_menu_bar_dirty_flag, |
7608 | "t means menu bar, specified Lucid style, needs to be recomputed."); | |
7609 | Vlucid_menu_bar_dirty_flag = Qnil; | |
a73c5e29 | 7610 | |
9f9c0e27 RS |
7611 | DEFVAR_LISP ("menu-bar-final-items", &Vmenu_bar_final_items, |
7612 | "List of menu bar items to move to the end of the menu bar.\n\ | |
a612e298 | 7613 | The elements of the list are event types that may have menu bar bindings."); |
9f9c0e27 | 7614 | Vmenu_bar_final_items = Qnil; |
e9bf89a0 | 7615 | |
217258d5 KH |
7616 | DEFVAR_KBOARD ("overriding-terminal-local-map", |
7617 | Voverriding_terminal_local_map, | |
7618 | "Keymap that overrides all other local keymaps.\n\ | |
7619 | If this variable is non-nil, it is used as a keymap instead of the\n\ | |
7620 | buffer's local map, and the minor mode keymaps and text property keymaps."); | |
7621 | ||
9dd3131c RS |
7622 | DEFVAR_LISP ("overriding-local-map", &Voverriding_local_map, |
7623 | "Keymap that overrides all other local keymaps.\n\ | |
7624 | If this variable is non-nil, it is used as a keymap instead of the\n\ | |
7625 | buffer's local map, and the minor mode keymaps and text property keymaps."); | |
7626 | Voverriding_local_map = Qnil; | |
7627 | ||
d0a49716 RS |
7628 | DEFVAR_LISP ("overriding-local-map-menu-flag", &Voverriding_local_map_menu_flag, |
7629 | "Non-nil means `overriding-local-map' applies to the menu bar.\n\ | |
7630 | Otherwise, the menu bar continues to reflect the buffer's local map\n\ | |
7631 | and the minor mode maps regardless of `overriding-local-map'."); | |
7632 | Voverriding_local_map_menu_flag = Qnil; | |
7633 | ||
7f07d5ca RS |
7634 | DEFVAR_LISP ("special-event-map", &Vspecial_event_map, |
7635 | "Keymap defining bindings for special events to execute at low level."); | |
7636 | Vspecial_event_map = Fcons (intern ("keymap"), Qnil); | |
7637 | ||
71edead1 | 7638 | DEFVAR_LISP ("track-mouse", &do_mouse_tracking, |
a53c7666 | 7639 | "*Non-nil means generate motion events for mouse motion."); |
80e4aa30 | 7640 | |
7c97ffdc | 7641 | DEFVAR_KBOARD ("system-key-alist", Vsystem_key_alist, |
270a208f | 7642 | "Alist of system-specific X windows key symbols.\n\ |
80e4aa30 | 7643 | Each element should have the form (N . SYMBOL) where N is the\n\ |
270a208f | 7644 | numeric keysym code (sans the \"system-specific\" bit 1<<28)\n\ |
80e4aa30 | 7645 | and SYMBOL is its name."); |
8a792f3a RS |
7646 | |
7647 | DEFVAR_LISP ("deferred-action-list", &Vdeferred_action_list, | |
7648 | "List of deferred actions to be performed at a later time.\n\ | |
7649 | The precise format isn't relevant here; we just check whether it is nil."); | |
7650 | Vdeferred_action_list = Qnil; | |
7651 | ||
7652 | DEFVAR_LISP ("deferred-action-function", &Vdeferred_action_function, | |
7653 | "Function to call to handle deferred actions, after each command.\n\ | |
7654 | This function is called with no arguments after each command\n\ | |
7655 | whenever `deferred-action-list' is non-nil."); | |
7656 | Vdeferred_action_function = Qnil; | |
6526ab49 RS |
7657 | |
7658 | DEFVAR_LISP ("suggest-key-bindings", &Vsuggest_key_bindings, | |
7659 | "Non-nil means show the equivalent key-binding when M-x command has one.\n\ | |
7660 | The value can be a length of time to show the message for.\n\ | |
7661 | If the value is non-nil and not a number, we wait 2 seconds."); | |
7662 | Vsuggest_key_bindings = Qt; | |
8bb1c042 RS |
7663 | |
7664 | DEFVAR_LISP ("column-number-mode", &Vcolumn_number_mode, | |
7665 | "Non-nil enables display of the current column number in the mode line."); | |
7666 | Vcolumn_number_mode = Qnil; | |
284f4730 JB |
7667 | } |
7668 | ||
7669 | keys_of_keyboard () | |
7670 | { | |
7671 | initial_define_key (global_map, Ctl ('Z'), "suspend-emacs"); | |
7672 | initial_define_key (control_x_map, Ctl ('Z'), "suspend-emacs"); | |
7673 | initial_define_key (meta_map, Ctl ('C'), "exit-recursive-edit"); | |
7674 | initial_define_key (global_map, Ctl (']'), "abort-recursive-edit"); | |
7675 | initial_define_key (meta_map, 'x', "execute-extended-command"); | |
7f07d5ca RS |
7676 | |
7677 | initial_define_lispy_key (Vspecial_event_map, "delete-frame", | |
7678 | "handle-delete-frame"); | |
7679 | initial_define_lispy_key (Vspecial_event_map, "iconify-frame", | |
7680 | "ignore-event"); | |
7681 | initial_define_lispy_key (Vspecial_event_map, "make-frame-visible", | |
7682 | "ignore-event"); | |
284f4730 | 7683 | } |