Commit | Line | Data |
---|---|---|
ec28a64d | 1 | /* Call a Lisp function interactively. |
4e87700b | 2 | Copyright (C) 1985, 1986, 1993, 1994, 1995 Free Software Foundation, Inc. |
ec28a64d MB |
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 | |
dbc4e1c1 | 8 | the Free Software Foundation; either version 2, or (at your option) |
ec28a64d MB |
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 | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
20 | ||
18160b98 | 21 | #include <config.h> |
ec28a64d MB |
22 | #include "lisp.h" |
23 | #include "buffer.h" | |
24 | #include "commands.h" | |
760cbdd3 | 25 | #include "keyboard.h" |
ec28a64d MB |
26 | #include "window.h" |
27 | #include "mocklisp.h" | |
28 | ||
29 | extern char *index (); | |
30 | ||
1e0c5826 | 31 | Lisp_Object Vcurrent_prefix_arg, Qminus, Qplus; |
ec28a64d MB |
32 | Lisp_Object Qcall_interactively; |
33 | Lisp_Object Vcommand_history; | |
34 | ||
35 | Lisp_Object Vcommand_debug_status, Qcommand_debug_status; | |
52614803 | 36 | Lisp_Object Qenable_recursive_minibuffers; |
ec28a64d | 37 | |
9f315aeb RS |
38 | /* Non-nil means treat the mark as active |
39 | even if mark_active is 0. */ | |
40 | Lisp_Object Vmark_even_if_inactive; | |
41 | ||
ef2515c0 RS |
42 | Lisp_Object Vmouse_leave_buffer_hook, Qmouse_leave_buffer_hook; |
43 | ||
03e130d5 | 44 | Lisp_Object Qlist; |
824977b6 RS |
45 | static Lisp_Object preserved_fns; |
46 | ||
47 | /* Marker used within call-interactively to refer to point. */ | |
48 | static Lisp_Object point_marker; | |
03e130d5 | 49 | |
1cf9cfc6 | 50 | |
ec28a64d MB |
51 | /* This comment supplies the doc string for interactive, |
52 | for make-docfile to see. We cannot put this in the real DEFUN | |
53 | due to limits in the Unix cpp. | |
54 | ||
55 | DEFUN ("interactive", Ffoo, Sfoo, 0, 0, 0, | |
56 | "Specify a way of parsing arguments for interactive use of a function.\n\ | |
57 | For example, write\n\ | |
58 | (defun foo (arg) \"Doc string\" (interactive \"p\") ...use arg...)\n\ | |
59 | to make ARG be the prefix argument when `foo' is called as a command.\n\ | |
60 | The \"call\" to `interactive' is actually a declaration rather than a function;\n\ | |
61 | it tells `call-interactively' how to read arguments\n\ | |
62 | to pass to the function.\n\ | |
63 | When actually called, `interactive' just returns nil.\n\ | |
64 | \n\ | |
65 | The argument of `interactive' is usually a string containing a code letter\n\ | |
66 | followed by a prompt. (Some code letters do not use I/O to get\n\ | |
67 | the argument and do not need prompts.) To prompt for multiple arguments,\n\ | |
68 | give a code letter, its prompt, a newline, and another code letter, etc.\n\ | |
69 | Prompts are passed to format, and may use % escapes to print the\n\ | |
70 | arguments that have already been read.\n\ | |
71 | If the argument is not a string, it is evaluated to get a list of\n\ | |
72 | arguments to pass to the function.\n\ | |
73 | Just `(interactive)' means pass no args when calling interactively.\n\ | |
74 | \nCode letters available are:\n\ | |
75 | a -- Function name: symbol with a function definition.\n\ | |
76 | b -- Name of existing buffer.\n\ | |
77 | B -- Name of buffer, possibly nonexistent.\n\ | |
78 | c -- Character.\n\ | |
79 | C -- Command name: symbol with interactive function definition.\n\ | |
80 | d -- Value of point as number. Does not do I/O.\n\ | |
81 | D -- Directory name.\n\ | |
4d1f43c0 RS |
82 | e -- Parametrized event (i.e., one that's a list) that invoked this command.\n\ |
83 | If used more than once, the Nth `e' returns the Nth parameterized event.\n\ | |
84 | This skips events that are integers or symbols.\n\ | |
ec28a64d MB |
85 | f -- Existing file name.\n\ |
86 | F -- Possibly nonexistent file name.\n\ | |
b631003b RS |
87 | k -- Key sequence (downcase the last event if needed to get a definition).\n\ |
88 | K -- Key sequence to be redefined (do not downcase the last event).\n\ | |
ec28a64d MB |
89 | m -- Value of mark as number. Does not do I/O.\n\ |
90 | n -- Number read using minibuffer.\n\ | |
701ca6c0 | 91 | N -- Raw prefix arg, or if none, do like code `n'.\n\ |
ec28a64d MB |
92 | p -- Prefix arg converted to number. Does not do I/O.\n\ |
93 | P -- Prefix arg in raw form. Does not do I/O.\n\ | |
94 | r -- Region: point and mark as 2 numeric args, smallest first. Does no I/O.\n\ | |
95 | s -- Any string.\n\ | |
96 | S -- Any symbol.\n\ | |
97 | v -- Variable name: symbol that is user-variable-p.\n\ | |
98 | x -- Lisp expression read but not evaluated.\n\ | |
99 | X -- Lisp expression read and evaluated.\n\ | |
100 | In addition, if the string begins with `*'\n\ | |
101 | then an error is signaled if the buffer is read-only.\n\ | |
102 | This happens before reading any arguments.\n\ | |
dbc4e1c1 JB |
103 | If the string begins with `@', then Emacs searches the key sequence\n\ |
104 | which invoked the command for its first mouse click (or any other\n\ | |
105 | event which specifies a window), and selects that window before\n\ | |
106 | reading any arguments. You may use both `@' and `*'; they are\n\ | |
107 | processed in the order that they appear." */ | |
ec28a64d MB |
108 | |
109 | /* ARGSUSED */ | |
110 | DEFUN ("interactive", Finteractive, Sinteractive, 0, UNEVALLED, 0, | |
111 | 0 /* See immediately above */) | |
112 | (args) | |
113 | Lisp_Object args; | |
114 | { | |
115 | return Qnil; | |
116 | } | |
117 | ||
118 | /* Quotify EXP: if EXP is constant, return it. | |
119 | If EXP is not constant, return (quote EXP). */ | |
120 | Lisp_Object | |
121 | quotify_arg (exp) | |
122 | register Lisp_Object exp; | |
123 | { | |
6e54b3de | 124 | if (!INTEGERP (exp) && !STRINGP (exp) |
265a9e55 | 125 | && !NILP (exp) && !EQ (exp, Qt)) |
ec28a64d MB |
126 | return Fcons (Qquote, Fcons (exp, Qnil)); |
127 | ||
128 | return exp; | |
129 | } | |
130 | ||
131 | /* Modify EXP by quotifying each element (except the first). */ | |
132 | Lisp_Object | |
133 | quotify_args (exp) | |
134 | Lisp_Object exp; | |
135 | { | |
136 | register Lisp_Object tail; | |
137 | register struct Lisp_Cons *ptr; | |
138 | for (tail = exp; CONSP (tail); tail = ptr->cdr) | |
139 | { | |
140 | ptr = XCONS (tail); | |
141 | ptr->car = quotify_arg (ptr->car); | |
142 | } | |
143 | return exp; | |
144 | } | |
145 | ||
146 | char *callint_argfuns[] | |
147 | = {"", "point", "mark", "region-beginning", "region-end"}; | |
148 | ||
149 | static void | |
150 | check_mark () | |
151 | { | |
86c1cf23 KH |
152 | Lisp_Object tem; |
153 | tem = Fmarker_buffer (current_buffer->mark); | |
265a9e55 | 154 | if (NILP (tem) || (XBUFFER (tem) != current_buffer)) |
ec28a64d | 155 | error ("The mark is not set now"); |
6497d2d8 RM |
156 | if (!NILP (Vtransient_mark_mode) && NILP (Vmark_even_if_inactive) |
157 | && NILP (current_buffer->mark_active)) | |
158 | Fsignal (Qmark_inactive, Qnil); | |
ec28a64d MB |
159 | } |
160 | ||
161 | ||
162 | DEFUN ("call-interactively", Fcall_interactively, Scall_interactively, 1, 2, 0, | |
163 | "Call FUNCTION, reading args according to its interactive calling specs.\n\ | |
994662ce | 164 | Return the value FUNCTION returns.\n\ |
ec28a64d MB |
165 | The function contains a specification of how to do the argument reading.\n\ |
166 | In the case of user-defined functions, this is specified by placing a call\n\ | |
167 | to the function `interactive' at the top level of the function body.\n\ | |
168 | See `interactive'.\n\ | |
169 | \n\ | |
170 | Optional second arg RECORD-FLAG non-nil\n\ | |
171 | means unconditionally put this command in the command-history.\n\ | |
172 | Otherwise, this is done only if an arg is read using the minibuffer.") | |
173 | (function, record) | |
174 | Lisp_Object function, record; | |
175 | { | |
176 | Lisp_Object *args, *visargs; | |
177 | unsigned char **argstrings; | |
178 | Lisp_Object fun; | |
179 | Lisp_Object funcar; | |
180 | Lisp_Object specs; | |
181 | Lisp_Object teml; | |
52614803 RS |
182 | Lisp_Object enable; |
183 | int speccount = specpdl_ptr - specpdl; | |
ec28a64d | 184 | |
bc78232c JB |
185 | /* The index of the next element of this_command_keys to examine for |
186 | the 'e' interactive code. */ | |
dbc4e1c1 | 187 | int next_event; |
bc78232c | 188 | |
ec28a64d MB |
189 | Lisp_Object prefix_arg; |
190 | unsigned char *string; | |
191 | unsigned char *tem; | |
63007de2 JB |
192 | |
193 | /* If varies[i] > 0, the i'th argument shouldn't just have its value | |
194 | in this call quoted in the command history. It should be | |
195 | recorded as a call to the function named callint_argfuns[varies[i]]. */ | |
ec28a64d | 196 | int *varies; |
63007de2 | 197 | |
ec28a64d MB |
198 | register int i, j; |
199 | int count, foo; | |
200 | char prompt[100]; | |
201 | char prompt1[100]; | |
202 | char *tem1; | |
203 | int arg_from_tty = 0; | |
204 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
205 | ||
e5d77022 | 206 | /* Save this now, since use of minibuffer will clobber it. */ |
8c917bf2 | 207 | prefix_arg = Vcurrent_prefix_arg; |
ec28a64d | 208 | |
46947372 | 209 | retry: |
ec28a64d | 210 | |
6e54b3de | 211 | if (SYMBOLP (function)) |
afa4c0f3 | 212 | enable = Fget (function, Qenable_recursive_minibuffers); |
52614803 | 213 | |
ffd56f97 | 214 | fun = indirect_function (function); |
ec28a64d MB |
215 | |
216 | specs = Qnil; | |
217 | string = 0; | |
218 | ||
219 | /* Decode the kind of function. Either handle it and return, | |
220 | or go to `lose' if not interactive, or go to `retry' | |
221 | to specify a different function, or set either STRING or SPECS. */ | |
222 | ||
6e54b3de | 223 | if (SUBRP (fun)) |
ec28a64d MB |
224 | { |
225 | string = (unsigned char *) XSUBR (fun)->prompt; | |
226 | if (!string) | |
227 | { | |
228 | lose: | |
b37902c8 | 229 | function = wrong_type_argument (Qcommandp, function); |
ec28a64d MB |
230 | goto retry; |
231 | } | |
132b9337 | 232 | if ((EMACS_INT) string == 1) |
ec28a64d MB |
233 | /* Let SPECS (which is nil) be used as the args. */ |
234 | string = 0; | |
235 | } | |
6e54b3de | 236 | else if (COMPILEDP (fun)) |
ec28a64d | 237 | { |
f9b4aacf | 238 | if ((XVECTOR (fun)->size & PSEUDOVECTOR_SIZE_MASK) <= COMPILED_INTERACTIVE) |
ec28a64d MB |
239 | goto lose; |
240 | specs = XVECTOR (fun)->contents[COMPILED_INTERACTIVE]; | |
241 | } | |
242 | else if (!CONSP (fun)) | |
243 | goto lose; | |
244 | else if (funcar = Fcar (fun), EQ (funcar, Qautoload)) | |
245 | { | |
246 | GCPRO2 (function, prefix_arg); | |
247 | do_autoload (fun, function); | |
248 | UNGCPRO; | |
249 | goto retry; | |
250 | } | |
251 | else if (EQ (funcar, Qlambda)) | |
252 | { | |
253 | specs = Fassq (Qinteractive, Fcdr (Fcdr (fun))); | |
265a9e55 | 254 | if (NILP (specs)) |
ec28a64d MB |
255 | goto lose; |
256 | specs = Fcar (Fcdr (specs)); | |
257 | } | |
258 | else if (EQ (funcar, Qmocklisp)) | |
887e0cba | 259 | { |
652e2240 | 260 | single_kboard_state (); |
887e0cba KH |
261 | return ml_apply (fun, Qinteractive); |
262 | } | |
ec28a64d MB |
263 | else |
264 | goto lose; | |
265 | ||
46947372 | 266 | /* If either specs or string is set to a string, use it. */ |
6e54b3de | 267 | if (STRINGP (specs)) |
46947372 JB |
268 | { |
269 | /* Make a copy of string so that if a GC relocates specs, | |
270 | `string' will still be valid. */ | |
e5d77022 | 271 | string = (unsigned char *) alloca (XSTRING (specs)->size + 1); |
46947372 JB |
272 | bcopy (XSTRING (specs)->data, string, XSTRING (specs)->size + 1); |
273 | } | |
ec28a64d MB |
274 | else if (string == 0) |
275 | { | |
03e130d5 | 276 | Lisp_Object input; |
ec28a64d | 277 | i = num_input_chars; |
03e130d5 RS |
278 | input = specs; |
279 | /* Compute the arg values using the user's expression. */ | |
ec28a64d | 280 | specs = Feval (specs); |
265a9e55 | 281 | if (i != num_input_chars || !NILP (record)) |
03e130d5 RS |
282 | { |
283 | /* We should record this command on the command history. */ | |
284 | Lisp_Object values, car; | |
285 | /* Make a copy of the list of values, for the command history, | |
286 | and turn them into things we can eval. */ | |
287 | values = quotify_args (Fcopy_sequence (specs)); | |
288 | /* If the list of args was produced with an explicit call to `list', | |
289 | look for elements that were computed with (region-beginning) | |
290 | or (region-end), and put those expressions into VALUES | |
291 | instead of the present values. */ | |
292 | car = Fcar (input); | |
293 | if (EQ (car, Qlist)) | |
294 | { | |
295 | Lisp_Object intail, valtail; | |
296 | for (intail = Fcdr (input), valtail = values; | |
297 | CONSP (valtail); | |
298 | intail = Fcdr (intail), valtail = Fcdr (valtail)) | |
299 | { | |
300 | Lisp_Object elt; | |
301 | elt = Fcar (intail); | |
302 | if (CONSP (elt)) | |
303 | { | |
304 | Lisp_Object presflag; | |
305 | presflag = Fmemq (Fcar (elt), preserved_fns); | |
306 | if (!NILP (presflag)) | |
307 | Fsetcar (valtail, Fcar (intail)); | |
308 | } | |
309 | } | |
310 | } | |
311 | Vcommand_history | |
312 | = Fcons (Fcons (function, values), Vcommand_history); | |
313 | } | |
652e2240 | 314 | single_kboard_state (); |
ec28a64d MB |
315 | return apply1 (function, specs); |
316 | } | |
317 | ||
318 | /* Here if function specifies a string to control parsing the defaults */ | |
319 | ||
dbc4e1c1 JB |
320 | /* Set next_event to point to the first event with parameters. */ |
321 | for (next_event = 0; next_event < this_command_key_count; next_event++) | |
322 | if (EVENT_HAS_PARAMETERS | |
323 | (XVECTOR (this_command_keys)->contents[next_event])) | |
324 | break; | |
325 | ||
42bb2790 | 326 | /* Handle special starting chars `*' and `@'. Also `-'. */ |
e92d107b | 327 | /* Note that `+' is reserved for user extensions. */ |
ec28a64d MB |
328 | while (1) |
329 | { | |
fb775602 | 330 | if (*string == '+') |
e92d107b RS |
331 | error ("`+' is not used in `interactive' for ordinary commands"); |
332 | else if (*string == '*') | |
ec28a64d MB |
333 | { |
334 | string++; | |
265a9e55 | 335 | if (!NILP (current_buffer->read_only)) |
ec28a64d MB |
336 | Fbarf_if_buffer_read_only (); |
337 | } | |
42bb2790 RS |
338 | /* Ignore this for semi-compatibility with Lucid. */ |
339 | else if (*string == '-') | |
340 | string++; | |
ec28a64d MB |
341 | else if (*string == '@') |
342 | { | |
86c1cf23 | 343 | Lisp_Object event; |
dbc4e1c1 | 344 | |
86c1cf23 | 345 | event = XVECTOR (this_command_keys)->contents[next_event]; |
dbc4e1c1 | 346 | if (EVENT_HAS_PARAMETERS (event) |
21ba0e68 | 347 | && (event = XCONS (event)->cdr, CONSP (event)) |
6e54b3de | 348 | && (event = XCONS (event)->car, CONSP (event)) |
a6d1245e | 349 | && (event = XCONS (event)->car, WINDOWP (event))) |
d1fa2e8a | 350 | { |
d68807fc | 351 | if (MINI_WINDOW_P (XWINDOW (event)) |
42bb2790 | 352 | && ! (minibuf_level > 0 && EQ (event, minibuf_window))) |
d1fa2e8a | 353 | error ("Attempt to select inactive minibuffer window"); |
ef2515c0 RS |
354 | |
355 | /* If the current buffer wants to clean up, let it. */ | |
356 | if (!NILP (Vmouse_leave_buffer_hook)) | |
357 | call1 (Vrun_hooks, Qmouse_leave_buffer_hook); | |
358 | ||
d1fa2e8a KH |
359 | Fselect_window (event); |
360 | } | |
ec28a64d | 361 | string++; |
ec28a64d MB |
362 | } |
363 | else break; | |
364 | } | |
365 | ||
366 | /* Count the number of arguments the interactive spec would have | |
367 | us give to the function. */ | |
368 | tem = string; | |
369 | for (j = 0; *tem; j++) | |
370 | { | |
371 | /* 'r' specifications ("point and mark as 2 numeric args") | |
372 | produce *two* arguments. */ | |
373 | if (*tem == 'r') j++; | |
374 | tem = (unsigned char *) index (tem, '\n'); | |
375 | if (tem) | |
376 | tem++; | |
377 | else | |
378 | tem = (unsigned char *) ""; | |
379 | } | |
380 | count = j; | |
381 | ||
382 | args = (Lisp_Object *) alloca ((count + 1) * sizeof (Lisp_Object)); | |
383 | visargs = (Lisp_Object *) alloca ((count + 1) * sizeof (Lisp_Object)); | |
384 | argstrings = (unsigned char **) alloca ((count + 1) * sizeof (char *)); | |
385 | varies = (int *) alloca ((count + 1) * sizeof (int)); | |
386 | ||
387 | for (i = 0; i < (count + 1); i++) | |
388 | { | |
389 | args[i] = Qnil; | |
390 | visargs[i] = Qnil; | |
391 | varies[i] = 0; | |
392 | } | |
393 | ||
394 | GCPRO4 (prefix_arg, function, *args, *visargs); | |
395 | gcpro3.nvars = (count + 1); | |
396 | gcpro4.nvars = (count + 1); | |
397 | ||
52614803 RS |
398 | if (!NILP (enable)) |
399 | specbind (Qenable_recursive_minibuffers, Qt); | |
400 | ||
ec28a64d | 401 | tem = string; |
46947372 | 402 | for (i = 1; *tem; i++) |
ec28a64d MB |
403 | { |
404 | strncpy (prompt1, tem + 1, sizeof prompt1 - 1); | |
405 | prompt1[sizeof prompt1 - 1] = 0; | |
406 | tem1 = index (prompt1, '\n'); | |
407 | if (tem1) *tem1 = 0; | |
408 | /* Fill argstrings with a vector of C strings | |
409 | corresponding to the Lisp strings in visargs. */ | |
410 | for (j = 1; j < i; j++) | |
411 | argstrings[j] | |
412 | = EQ (visargs[j], Qnil) | |
413 | ? (unsigned char *) "" | |
46947372 | 414 | : XSTRING (visargs[j])->data; |
ec28a64d | 415 | |
cc04c679 KH |
416 | doprnt (prompt, sizeof prompt, prompt1, (char *)0, |
417 | j - 1, argstrings + 1); | |
ec28a64d MB |
418 | |
419 | switch (*tem) | |
420 | { | |
421 | case 'a': /* Symbol defined as a function */ | |
422 | visargs[i] = Fcompleting_read (build_string (prompt), | |
423 | Vobarray, Qfboundp, Qt, Qnil, Qnil); | |
424 | /* Passing args[i] directly stimulates compiler bug */ | |
425 | teml = visargs[i]; | |
426 | args[i] = Fintern (teml, Qnil); | |
427 | break; | |
428 | ||
429 | case 'b': /* Name of existing buffer */ | |
430 | args[i] = Fcurrent_buffer (); | |
431 | if (EQ (selected_window, minibuf_window)) | |
9262fcb6 | 432 | args[i] = Fother_buffer (args[i], Qnil); |
ec28a64d MB |
433 | args[i] = Fread_buffer (build_string (prompt), args[i], Qt); |
434 | break; | |
435 | ||
436 | case 'B': /* Name of buffer, possibly nonexistent */ | |
437 | args[i] = Fread_buffer (build_string (prompt), | |
9262fcb6 RS |
438 | Fother_buffer (Fcurrent_buffer (), Qnil), |
439 | Qnil); | |
ec28a64d MB |
440 | break; |
441 | ||
442 | case 'c': /* Character */ | |
443 | message1 (prompt); | |
444 | args[i] = Fread_char (); | |
445 | /* Passing args[i] directly stimulates compiler bug */ | |
446 | teml = args[i]; | |
447 | visargs[i] = Fchar_to_string (teml); | |
448 | break; | |
449 | ||
450 | case 'C': /* Command: symbol with interactive function */ | |
451 | visargs[i] = Fcompleting_read (build_string (prompt), | |
452 | Vobarray, Qcommandp, Qt, Qnil, Qnil); | |
453 | /* Passing args[i] directly stimulates compiler bug */ | |
454 | teml = visargs[i]; | |
455 | args[i] = Fintern (teml, Qnil); | |
456 | break; | |
457 | ||
458 | case 'd': /* Value of point. Does not do I/O. */ | |
824977b6 RS |
459 | Fset_marker (point_marker, make_number (PT), Qnil); |
460 | args[i] = point_marker; | |
ec28a64d MB |
461 | /* visargs[i] = Qnil; */ |
462 | varies[i] = 1; | |
463 | break; | |
464 | ||
ec28a64d MB |
465 | case 'D': /* Directory name. */ |
466 | args[i] = Fread_file_name (build_string (prompt), Qnil, | |
467 | current_buffer->directory, Qlambda, Qnil); | |
468 | break; | |
469 | ||
470 | case 'f': /* Existing file name. */ | |
471 | args[i] = Fread_file_name (build_string (prompt), | |
472 | Qnil, Qnil, Qlambda, Qnil); | |
473 | break; | |
474 | ||
475 | case 'F': /* Possibly nonexistent file name. */ | |
476 | args[i] = Fread_file_name (build_string (prompt), | |
477 | Qnil, Qnil, Qnil, Qnil); | |
478 | break; | |
479 | ||
1989e7bc | 480 | case 'k': /* Key sequence. */ |
44820cc3 | 481 | args[i] = Fread_key_sequence (build_string (prompt), Qnil, Qnil, Qnil); |
1989e7bc RS |
482 | teml = args[i]; |
483 | visargs[i] = Fkey_description (teml); | |
484 | break; | |
485 | ||
486 | case 'K': /* Key sequence to be defined. */ | |
44820cc3 | 487 | args[i] = Fread_key_sequence (build_string (prompt), Qnil, Qt, Qnil); |
ec28a64d MB |
488 | teml = args[i]; |
489 | visargs[i] = Fkey_description (teml); | |
490 | break; | |
491 | ||
bc78232c | 492 | case 'e': /* The invoking event. */ |
bc78232c JB |
493 | if (next_event >= this_command_key_count) |
494 | error ("%s must be bound to an event with parameters", | |
6e54b3de | 495 | (SYMBOLP (function) |
63007de2 | 496 | ? (char *) XSYMBOL (function)->name->data |
bc78232c | 497 | : "command")); |
7e6491d3 | 498 | args[i] = XVECTOR (this_command_keys)->contents[next_event++]; |
e5d77022 | 499 | varies[i] = -1; |
dbc4e1c1 JB |
500 | |
501 | /* Find the next parameterized event. */ | |
502 | while (next_event < this_command_key_count | |
503 | && ! (EVENT_HAS_PARAMETERS | |
504 | (XVECTOR (this_command_keys)->contents[next_event]))) | |
505 | next_event++; | |
506 | ||
63007de2 JB |
507 | break; |
508 | ||
ec28a64d MB |
509 | case 'm': /* Value of mark. Does not do I/O. */ |
510 | check_mark (); | |
511 | /* visargs[i] = Qnil; */ | |
824977b6 | 512 | args[i] = current_buffer->mark; |
ec28a64d MB |
513 | varies[i] = 2; |
514 | break; | |
515 | ||
516 | case 'N': /* Prefix arg, else number from minibuffer */ | |
265a9e55 | 517 | if (!NILP (prefix_arg)) |
ec28a64d MB |
518 | goto have_prefix_arg; |
519 | case 'n': /* Read number from minibuffer. */ | |
520 | do | |
521 | args[i] = Fread_minibuffer (build_string (prompt), Qnil); | |
4746118a | 522 | while (! NUMBERP (args[i])); |
ec28a64d MB |
523 | visargs[i] = last_minibuf_string; |
524 | break; | |
525 | ||
526 | case 'P': /* Prefix arg in raw form. Does no I/O. */ | |
527 | have_prefix_arg: | |
528 | args[i] = prefix_arg; | |
529 | /* visargs[i] = Qnil; */ | |
530 | varies[i] = -1; | |
531 | break; | |
532 | ||
533 | case 'p': /* Prefix arg converted to number. No I/O. */ | |
534 | args[i] = Fprefix_numeric_value (prefix_arg); | |
535 | /* visargs[i] = Qnil; */ | |
536 | varies[i] = -1; | |
537 | break; | |
538 | ||
539 | case 'r': /* Region, point and mark as 2 args. */ | |
540 | check_mark (); | |
824977b6 | 541 | Fset_marker (point_marker, make_number (PT), Qnil); |
ec28a64d MB |
542 | /* visargs[i+1] = Qnil; */ |
543 | foo = marker_position (current_buffer->mark); | |
544 | /* visargs[i] = Qnil; */ | |
824977b6 | 545 | args[i] = point < foo ? point_marker : current_buffer->mark; |
ec28a64d | 546 | varies[i] = 3; |
824977b6 | 547 | args[++i] = point > foo ? point_marker : current_buffer->mark; |
ec28a64d MB |
548 | varies[i] = 4; |
549 | break; | |
550 | ||
551 | case 's': /* String read via minibuffer. */ | |
80896ab4 | 552 | args[i] = Fread_string (build_string (prompt), Qnil, Qnil); |
ec28a64d MB |
553 | break; |
554 | ||
555 | case 'S': /* Any symbol. */ | |
80896ab4 | 556 | visargs[i] = Fread_string (build_string (prompt), Qnil, Qnil); |
ec28a64d MB |
557 | /* Passing args[i] directly stimulates compiler bug */ |
558 | teml = visargs[i]; | |
559 | args[i] = Fintern (teml, Qnil); | |
560 | break; | |
561 | ||
562 | case 'v': /* Variable name: symbol that is | |
563 | user-variable-p. */ | |
564 | args[i] = Fread_variable (build_string (prompt)); | |
565 | visargs[i] = last_minibuf_string; | |
566 | break; | |
567 | ||
568 | case 'x': /* Lisp expression read but not evaluated */ | |
569 | args[i] = Fread_minibuffer (build_string (prompt), Qnil); | |
570 | visargs[i] = last_minibuf_string; | |
571 | break; | |
572 | ||
573 | case 'X': /* Lisp expression read and evaluated */ | |
574 | args[i] = Feval_minibuffer (build_string (prompt), Qnil); | |
575 | visargs[i] = last_minibuf_string; | |
576 | break; | |
577 | ||
e92d107b RS |
578 | /* We have a case for `+' so we get an error |
579 | if anyone tries to define one here. */ | |
580 | case '+': | |
ec28a64d | 581 | default: |
e92d107b | 582 | error ("Invalid control letter `%c' (%03o) in interactive calling string", |
ec28a64d MB |
583 | *tem, *tem); |
584 | } | |
585 | ||
586 | if (varies[i] == 0) | |
587 | arg_from_tty = 1; | |
588 | ||
6e54b3de | 589 | if (NILP (visargs[i]) && STRINGP (args[i])) |
ec28a64d MB |
590 | visargs[i] = args[i]; |
591 | ||
592 | tem = (unsigned char *) index (tem, '\n'); | |
593 | if (tem) tem++; | |
594 | else tem = (unsigned char *) ""; | |
595 | } | |
52614803 | 596 | unbind_to (speccount, Qnil); |
ec28a64d MB |
597 | |
598 | QUIT; | |
599 | ||
600 | args[0] = function; | |
601 | ||
265a9e55 | 602 | if (arg_from_tty || !NILP (record)) |
ec28a64d MB |
603 | { |
604 | visargs[0] = function; | |
63007de2 | 605 | for (i = 1; i < count + 1; i++) |
824977b6 RS |
606 | { |
607 | if (varies[i] > 0) | |
608 | visargs[i] = Fcons (intern (callint_argfuns[varies[i]]), Qnil); | |
609 | else | |
610 | visargs[i] = quotify_arg (args[i]); | |
611 | } | |
ec28a64d MB |
612 | Vcommand_history = Fcons (Flist (count + 1, visargs), |
613 | Vcommand_history); | |
614 | } | |
615 | ||
824977b6 RS |
616 | /* If we used a marker to hold point, mark, or an end of the region, |
617 | temporarily, convert it to an integer now. */ | |
f4c8ded2 | 618 | for (i = 1; i <= count; i++) |
824977b6 RS |
619 | if (varies[i] >= 1 && varies[i] <= 4) |
620 | XSETINT (args[i], marker_position (args[i])); | |
621 | ||
652e2240 | 622 | single_kboard_state (); |
ebfbe249 | 623 | |
ec28a64d MB |
624 | { |
625 | Lisp_Object val; | |
ec28a64d MB |
626 | specbind (Qcommand_debug_status, Qnil); |
627 | ||
628 | val = Ffuncall (count + 1, args); | |
629 | UNGCPRO; | |
630 | return unbind_to (speccount, val); | |
631 | } | |
632 | } | |
633 | ||
634 | DEFUN ("prefix-numeric-value", Fprefix_numeric_value, Sprefix_numeric_value, | |
635 | 1, 1, 0, | |
636 | "Return numeric meaning of raw prefix argument ARG.\n\ | |
637 | A raw prefix argument is what you get from `(interactive \"P\")'.\n\ | |
638 | Its numeric meaning is what you would get from `(interactive \"p\")'.") | |
639 | (raw) | |
640 | Lisp_Object raw; | |
641 | { | |
642 | Lisp_Object val; | |
643 | ||
265a9e55 | 644 | if (NILP (raw)) |
acab6442 | 645 | XSETFASTINT (val, 1); |
fd5285f3 | 646 | else if (EQ (raw, Qminus)) |
ec28a64d | 647 | XSETINT (val, -1); |
3399a477 | 648 | else if (CONSP (raw) && INTEGERP (XCONS (raw)->car)) |
ec28a64d | 649 | XSETINT (val, XINT (XCONS (raw)->car)); |
6e54b3de | 650 | else if (INTEGERP (raw)) |
ec28a64d MB |
651 | val = raw; |
652 | else | |
acab6442 | 653 | XSETFASTINT (val, 1); |
ec28a64d MB |
654 | |
655 | return val; | |
656 | } | |
657 | ||
658 | syms_of_callint () | |
659 | { | |
824977b6 RS |
660 | point_marker = Fmake_marker (); |
661 | staticpro (&point_marker); | |
662 | ||
03e130d5 RS |
663 | preserved_fns = Fcons (intern ("region-beginning"), |
664 | Fcons (intern ("region-end"), | |
665 | Fcons (intern ("point"), | |
666 | Fcons (intern ("mark"), Qnil)))); | |
667 | staticpro (&preserved_fns); | |
668 | ||
669 | Qlist = intern ("list"); | |
670 | staticpro (&Qlist); | |
671 | ||
ec28a64d MB |
672 | Qminus = intern ("-"); |
673 | staticpro (&Qminus); | |
674 | ||
fdb4a38c RS |
675 | Qplus = intern ("+"); |
676 | staticpro (&Qplus); | |
677 | ||
ec28a64d MB |
678 | Qcall_interactively = intern ("call-interactively"); |
679 | staticpro (&Qcall_interactively); | |
680 | ||
681 | Qcommand_debug_status = intern ("command-debug-status"); | |
682 | staticpro (&Qcommand_debug_status); | |
683 | ||
52614803 RS |
684 | Qenable_recursive_minibuffers = intern ("enable-recursive-minibuffers"); |
685 | staticpro (&Qenable_recursive_minibuffers); | |
686 | ||
ef2515c0 RS |
687 | Qmouse_leave_buffer_hook = intern ("mouse-leave-buffer-hook"); |
688 | staticpro (&Qmouse_leave_buffer_hook); | |
689 | ||
1e0c5826 | 690 | DEFVAR_KBOARD ("prefix-arg", Vprefix_arg, |
8c917bf2 KH |
691 | "The value of the prefix argument for the next editing command.\n\ |
692 | It may be a number, or the symbol `-' for just a minus sign as arg,\n\ | |
693 | or a list whose car is a number for just one or more C-U's\n\ | |
694 | or nil if no argument has been specified.\n\ | |
695 | \n\ | |
696 | You cannot examine this variable to find the argument for this command\n\ | |
697 | since it has been set to nil by the time you can look.\n\ | |
698 | Instead, you should use the variable `current-prefix-arg', although\n\ | |
699 | normally commands can get this prefix argument with (interactive \"P\")."); | |
8c917bf2 KH |
700 | |
701 | DEFVAR_LISP ("current-prefix-arg", &Vcurrent_prefix_arg, | |
702 | "The value of the prefix argument for this editing command.\n\ | |
703 | It may be a number, or the symbol `-' for just a minus sign as arg,\n\ | |
704 | or a list whose car is a number for just one or more C-U's\n\ | |
705 | or nil if no argument has been specified.\n\ | |
706 | This is what `(interactive \"P\")' returns."); | |
707 | Vcurrent_prefix_arg = Qnil; | |
708 | ||
ec28a64d MB |
709 | DEFVAR_LISP ("command-history", &Vcommand_history, |
710 | "List of recent commands that read arguments from terminal.\n\ | |
711 | Each command is represented as a form to evaluate."); | |
712 | Vcommand_history = Qnil; | |
713 | ||
714 | DEFVAR_LISP ("command-debug-status", &Vcommand_debug_status, | |
715 | "Debugging status of current interactive command.\n\ | |
716 | Bound each time `call-interactively' is called;\n\ | |
717 | may be set by the debugger as a reminder for itself."); | |
718 | Vcommand_debug_status = Qnil; | |
719 | ||
2ad6c959 | 720 | DEFVAR_LISP ("mark-even-if-inactive", &Vmark_even_if_inactive, |
9f315aeb RS |
721 | "*Non-nil means you can use the mark even when inactive.\n\ |
722 | This option makes a difference in Transient Mark mode.\n\ | |
723 | When the option is non-nil, deactivation of the mark\n\ | |
724 | turns off region highlighting, but commands that use the mark\n\ | |
725 | behave as if the mark were still active."); | |
726 | Vmark_even_if_inactive = Qnil; | |
727 | ||
ef2515c0 RS |
728 | DEFVAR_LISP ("mouse-leave-buffer-hook", &Vmouse_leave_buffer_hook, |
729 | "Hook to run when about to switch windows with a mouse command.\n\ | |
730 | Its purpose is to give temporary modes such as Isearch mode\n\ | |
731 | a way to turn themselves off when a mouse command switches windows."); | |
732 | Vmouse_leave_buffer_hook = Qnil; | |
733 | ||
ec28a64d MB |
734 | defsubr (&Sinteractive); |
735 | defsubr (&Scall_interactively); | |
736 | defsubr (&Sprefix_numeric_value); | |
737 | } |