Commit | Line | Data |
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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 | ||
fdb4a38c | 31 | Lisp_Object Vprefix_arg, 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 RS |
44 | Lisp_Object Qlist; |
45 | Lisp_Object preserved_fns; | |
46 | ||
ec28a64d MB |
47 | /* This comment supplies the doc string for interactive, |
48 | for make-docfile to see. We cannot put this in the real DEFUN | |
49 | due to limits in the Unix cpp. | |
50 | ||
51 | DEFUN ("interactive", Ffoo, Sfoo, 0, 0, 0, | |
52 | "Specify a way of parsing arguments for interactive use of a function.\n\ | |
53 | For example, write\n\ | |
54 | (defun foo (arg) \"Doc string\" (interactive \"p\") ...use arg...)\n\ | |
55 | to make ARG be the prefix argument when `foo' is called as a command.\n\ | |
56 | The \"call\" to `interactive' is actually a declaration rather than a function;\n\ | |
57 | it tells `call-interactively' how to read arguments\n\ | |
58 | to pass to the function.\n\ | |
59 | When actually called, `interactive' just returns nil.\n\ | |
60 | \n\ | |
61 | The argument of `interactive' is usually a string containing a code letter\n\ | |
62 | followed by a prompt. (Some code letters do not use I/O to get\n\ | |
63 | the argument and do not need prompts.) To prompt for multiple arguments,\n\ | |
64 | give a code letter, its prompt, a newline, and another code letter, etc.\n\ | |
65 | Prompts are passed to format, and may use % escapes to print the\n\ | |
66 | arguments that have already been read.\n\ | |
67 | If the argument is not a string, it is evaluated to get a list of\n\ | |
68 | arguments to pass to the function.\n\ | |
69 | Just `(interactive)' means pass no args when calling interactively.\n\ | |
70 | \nCode letters available are:\n\ | |
71 | a -- Function name: symbol with a function definition.\n\ | |
72 | b -- Name of existing buffer.\n\ | |
73 | B -- Name of buffer, possibly nonexistent.\n\ | |
74 | c -- Character.\n\ | |
75 | C -- Command name: symbol with interactive function definition.\n\ | |
76 | d -- Value of point as number. Does not do I/O.\n\ | |
77 | D -- Directory name.\n\ | |
4d1f43c0 RS |
78 | e -- Parametrized event (i.e., one that's a list) that invoked this command.\n\ |
79 | If used more than once, the Nth `e' returns the Nth parameterized event.\n\ | |
80 | This skips events that are integers or symbols.\n\ | |
ec28a64d MB |
81 | f -- Existing file name.\n\ |
82 | F -- Possibly nonexistent file name.\n\ | |
83 | k -- Key sequence (string).\n\ | |
84 | m -- Value of mark as number. Does not do I/O.\n\ | |
85 | n -- Number read using minibuffer.\n\ | |
701ca6c0 | 86 | N -- Raw prefix arg, or if none, do like code `n'.\n\ |
ec28a64d MB |
87 | p -- Prefix arg converted to number. Does not do I/O.\n\ |
88 | P -- Prefix arg in raw form. Does not do I/O.\n\ | |
89 | r -- Region: point and mark as 2 numeric args, smallest first. Does no I/O.\n\ | |
90 | s -- Any string.\n\ | |
91 | S -- Any symbol.\n\ | |
92 | v -- Variable name: symbol that is user-variable-p.\n\ | |
93 | x -- Lisp expression read but not evaluated.\n\ | |
94 | X -- Lisp expression read and evaluated.\n\ | |
95 | In addition, if the string begins with `*'\n\ | |
96 | then an error is signaled if the buffer is read-only.\n\ | |
97 | This happens before reading any arguments.\n\ | |
dbc4e1c1 JB |
98 | If the string begins with `@', then Emacs searches the key sequence\n\ |
99 | which invoked the command for its first mouse click (or any other\n\ | |
100 | event which specifies a window), and selects that window before\n\ | |
101 | reading any arguments. You may use both `@' and `*'; they are\n\ | |
102 | processed in the order that they appear." */ | |
ec28a64d MB |
103 | |
104 | /* ARGSUSED */ | |
105 | DEFUN ("interactive", Finteractive, Sinteractive, 0, UNEVALLED, 0, | |
106 | 0 /* See immediately above */) | |
107 | (args) | |
108 | Lisp_Object args; | |
109 | { | |
110 | return Qnil; | |
111 | } | |
112 | ||
113 | /* Quotify EXP: if EXP is constant, return it. | |
114 | If EXP is not constant, return (quote EXP). */ | |
115 | Lisp_Object | |
116 | quotify_arg (exp) | |
117 | register Lisp_Object exp; | |
118 | { | |
6e54b3de | 119 | if (!INTEGERP (exp) && !STRINGP (exp) |
265a9e55 | 120 | && !NILP (exp) && !EQ (exp, Qt)) |
ec28a64d MB |
121 | return Fcons (Qquote, Fcons (exp, Qnil)); |
122 | ||
123 | return exp; | |
124 | } | |
125 | ||
126 | /* Modify EXP by quotifying each element (except the first). */ | |
127 | Lisp_Object | |
128 | quotify_args (exp) | |
129 | Lisp_Object exp; | |
130 | { | |
131 | register Lisp_Object tail; | |
132 | register struct Lisp_Cons *ptr; | |
133 | for (tail = exp; CONSP (tail); tail = ptr->cdr) | |
134 | { | |
135 | ptr = XCONS (tail); | |
136 | ptr->car = quotify_arg (ptr->car); | |
137 | } | |
138 | return exp; | |
139 | } | |
140 | ||
141 | char *callint_argfuns[] | |
142 | = {"", "point", "mark", "region-beginning", "region-end"}; | |
143 | ||
144 | static void | |
145 | check_mark () | |
146 | { | |
86c1cf23 KH |
147 | Lisp_Object tem; |
148 | tem = Fmarker_buffer (current_buffer->mark); | |
265a9e55 | 149 | if (NILP (tem) || (XBUFFER (tem) != current_buffer)) |
ec28a64d | 150 | error ("The mark is not set now"); |
6497d2d8 RM |
151 | if (!NILP (Vtransient_mark_mode) && NILP (Vmark_even_if_inactive) |
152 | && NILP (current_buffer->mark_active)) | |
153 | Fsignal (Qmark_inactive, Qnil); | |
ec28a64d MB |
154 | } |
155 | ||
156 | ||
157 | DEFUN ("call-interactively", Fcall_interactively, Scall_interactively, 1, 2, 0, | |
158 | "Call FUNCTION, reading args according to its interactive calling specs.\n\ | |
159 | The function contains a specification of how to do the argument reading.\n\ | |
160 | In the case of user-defined functions, this is specified by placing a call\n\ | |
161 | to the function `interactive' at the top level of the function body.\n\ | |
162 | See `interactive'.\n\ | |
163 | \n\ | |
164 | Optional second arg RECORD-FLAG non-nil\n\ | |
165 | means unconditionally put this command in the command-history.\n\ | |
166 | Otherwise, this is done only if an arg is read using the minibuffer.") | |
167 | (function, record) | |
168 | Lisp_Object function, record; | |
169 | { | |
170 | Lisp_Object *args, *visargs; | |
171 | unsigned char **argstrings; | |
172 | Lisp_Object fun; | |
173 | Lisp_Object funcar; | |
174 | Lisp_Object specs; | |
175 | Lisp_Object teml; | |
52614803 RS |
176 | Lisp_Object enable; |
177 | int speccount = specpdl_ptr - specpdl; | |
ec28a64d | 178 | |
bc78232c JB |
179 | /* The index of the next element of this_command_keys to examine for |
180 | the 'e' interactive code. */ | |
dbc4e1c1 | 181 | int next_event; |
bc78232c | 182 | |
ec28a64d MB |
183 | Lisp_Object prefix_arg; |
184 | unsigned char *string; | |
185 | unsigned char *tem; | |
63007de2 JB |
186 | |
187 | /* If varies[i] > 0, the i'th argument shouldn't just have its value | |
188 | in this call quoted in the command history. It should be | |
189 | recorded as a call to the function named callint_argfuns[varies[i]]. */ | |
ec28a64d | 190 | int *varies; |
63007de2 | 191 | |
ec28a64d MB |
192 | register int i, j; |
193 | int count, foo; | |
194 | char prompt[100]; | |
195 | char prompt1[100]; | |
196 | char *tem1; | |
197 | int arg_from_tty = 0; | |
198 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
199 | ||
e5d77022 | 200 | /* Save this now, since use of minibuffer will clobber it. */ |
ec28a64d MB |
201 | prefix_arg = Vcurrent_prefix_arg; |
202 | ||
46947372 | 203 | retry: |
ec28a64d | 204 | |
6e54b3de | 205 | if (SYMBOLP (function)) |
afa4c0f3 | 206 | enable = Fget (function, Qenable_recursive_minibuffers); |
52614803 | 207 | |
ffd56f97 | 208 | fun = indirect_function (function); |
ec28a64d MB |
209 | |
210 | specs = Qnil; | |
211 | string = 0; | |
212 | ||
213 | /* Decode the kind of function. Either handle it and return, | |
214 | or go to `lose' if not interactive, or go to `retry' | |
215 | to specify a different function, or set either STRING or SPECS. */ | |
216 | ||
6e54b3de | 217 | if (SUBRP (fun)) |
ec28a64d MB |
218 | { |
219 | string = (unsigned char *) XSUBR (fun)->prompt; | |
220 | if (!string) | |
221 | { | |
222 | lose: | |
b37902c8 | 223 | function = wrong_type_argument (Qcommandp, function); |
ec28a64d MB |
224 | goto retry; |
225 | } | |
132b9337 | 226 | if ((EMACS_INT) string == 1) |
ec28a64d MB |
227 | /* Let SPECS (which is nil) be used as the args. */ |
228 | string = 0; | |
229 | } | |
6e54b3de | 230 | else if (COMPILEDP (fun)) |
ec28a64d | 231 | { |
f9b4aacf | 232 | if ((XVECTOR (fun)->size & PSEUDOVECTOR_SIZE_MASK) <= COMPILED_INTERACTIVE) |
ec28a64d MB |
233 | goto lose; |
234 | specs = XVECTOR (fun)->contents[COMPILED_INTERACTIVE]; | |
235 | } | |
236 | else if (!CONSP (fun)) | |
237 | goto lose; | |
238 | else if (funcar = Fcar (fun), EQ (funcar, Qautoload)) | |
239 | { | |
240 | GCPRO2 (function, prefix_arg); | |
241 | do_autoload (fun, function); | |
242 | UNGCPRO; | |
243 | goto retry; | |
244 | } | |
245 | else if (EQ (funcar, Qlambda)) | |
246 | { | |
247 | specs = Fassq (Qinteractive, Fcdr (Fcdr (fun))); | |
265a9e55 | 248 | if (NILP (specs)) |
ec28a64d MB |
249 | goto lose; |
250 | specs = Fcar (Fcdr (specs)); | |
251 | } | |
252 | else if (EQ (funcar, Qmocklisp)) | |
253 | return ml_apply (fun, Qinteractive); | |
254 | else | |
255 | goto lose; | |
256 | ||
46947372 | 257 | /* If either specs or string is set to a string, use it. */ |
6e54b3de | 258 | if (STRINGP (specs)) |
46947372 JB |
259 | { |
260 | /* Make a copy of string so that if a GC relocates specs, | |
261 | `string' will still be valid. */ | |
e5d77022 | 262 | string = (unsigned char *) alloca (XSTRING (specs)->size + 1); |
46947372 JB |
263 | bcopy (XSTRING (specs)->data, string, XSTRING (specs)->size + 1); |
264 | } | |
ec28a64d MB |
265 | else if (string == 0) |
266 | { | |
03e130d5 | 267 | Lisp_Object input; |
ec28a64d | 268 | i = num_input_chars; |
03e130d5 RS |
269 | input = specs; |
270 | /* Compute the arg values using the user's expression. */ | |
ec28a64d | 271 | specs = Feval (specs); |
265a9e55 | 272 | if (i != num_input_chars || !NILP (record)) |
03e130d5 RS |
273 | { |
274 | /* We should record this command on the command history. */ | |
275 | Lisp_Object values, car; | |
276 | /* Make a copy of the list of values, for the command history, | |
277 | and turn them into things we can eval. */ | |
278 | values = quotify_args (Fcopy_sequence (specs)); | |
279 | /* If the list of args was produced with an explicit call to `list', | |
280 | look for elements that were computed with (region-beginning) | |
281 | or (region-end), and put those expressions into VALUES | |
282 | instead of the present values. */ | |
283 | car = Fcar (input); | |
284 | if (EQ (car, Qlist)) | |
285 | { | |
286 | Lisp_Object intail, valtail; | |
287 | for (intail = Fcdr (input), valtail = values; | |
288 | CONSP (valtail); | |
289 | intail = Fcdr (intail), valtail = Fcdr (valtail)) | |
290 | { | |
291 | Lisp_Object elt; | |
292 | elt = Fcar (intail); | |
293 | if (CONSP (elt)) | |
294 | { | |
295 | Lisp_Object presflag; | |
296 | presflag = Fmemq (Fcar (elt), preserved_fns); | |
297 | if (!NILP (presflag)) | |
298 | Fsetcar (valtail, Fcar (intail)); | |
299 | } | |
300 | } | |
301 | } | |
302 | Vcommand_history | |
303 | = Fcons (Fcons (function, values), Vcommand_history); | |
304 | } | |
ec28a64d MB |
305 | return apply1 (function, specs); |
306 | } | |
307 | ||
308 | /* Here if function specifies a string to control parsing the defaults */ | |
309 | ||
dbc4e1c1 JB |
310 | /* Set next_event to point to the first event with parameters. */ |
311 | for (next_event = 0; next_event < this_command_key_count; next_event++) | |
312 | if (EVENT_HAS_PARAMETERS | |
313 | (XVECTOR (this_command_keys)->contents[next_event])) | |
314 | break; | |
315 | ||
42bb2790 | 316 | /* Handle special starting chars `*' and `@'. Also `-'. */ |
ec28a64d MB |
317 | while (1) |
318 | { | |
319 | if (*string == '*') | |
320 | { | |
321 | string++; | |
265a9e55 | 322 | if (!NILP (current_buffer->read_only)) |
ec28a64d MB |
323 | Fbarf_if_buffer_read_only (); |
324 | } | |
42bb2790 RS |
325 | /* Ignore this for semi-compatibility with Lucid. */ |
326 | else if (*string == '-') | |
327 | string++; | |
ec28a64d MB |
328 | else if (*string == '@') |
329 | { | |
86c1cf23 | 330 | Lisp_Object event; |
dbc4e1c1 | 331 | |
86c1cf23 | 332 | event = XVECTOR (this_command_keys)->contents[next_event]; |
dbc4e1c1 | 333 | if (EVENT_HAS_PARAMETERS (event) |
6e54b3de KH |
334 | && (event = XCONS (event)->car, CONSP (event)) |
335 | && (event = XCONS (event)->car, CONSP (event)) | |
336 | && (event = XCONS (event)->car), WINDOWP (event)) | |
d1fa2e8a | 337 | { |
d68807fc | 338 | if (MINI_WINDOW_P (XWINDOW (event)) |
42bb2790 | 339 | && ! (minibuf_level > 0 && EQ (event, minibuf_window))) |
d1fa2e8a | 340 | error ("Attempt to select inactive minibuffer window"); |
ef2515c0 RS |
341 | |
342 | /* If the current buffer wants to clean up, let it. */ | |
343 | if (!NILP (Vmouse_leave_buffer_hook)) | |
344 | call1 (Vrun_hooks, Qmouse_leave_buffer_hook); | |
345 | ||
d1fa2e8a KH |
346 | Fselect_window (event); |
347 | } | |
ec28a64d | 348 | string++; |
ec28a64d MB |
349 | } |
350 | else break; | |
351 | } | |
352 | ||
353 | /* Count the number of arguments the interactive spec would have | |
354 | us give to the function. */ | |
355 | tem = string; | |
356 | for (j = 0; *tem; j++) | |
357 | { | |
358 | /* 'r' specifications ("point and mark as 2 numeric args") | |
359 | produce *two* arguments. */ | |
360 | if (*tem == 'r') j++; | |
361 | tem = (unsigned char *) index (tem, '\n'); | |
362 | if (tem) | |
363 | tem++; | |
364 | else | |
365 | tem = (unsigned char *) ""; | |
366 | } | |
367 | count = j; | |
368 | ||
369 | args = (Lisp_Object *) alloca ((count + 1) * sizeof (Lisp_Object)); | |
370 | visargs = (Lisp_Object *) alloca ((count + 1) * sizeof (Lisp_Object)); | |
371 | argstrings = (unsigned char **) alloca ((count + 1) * sizeof (char *)); | |
372 | varies = (int *) alloca ((count + 1) * sizeof (int)); | |
373 | ||
374 | for (i = 0; i < (count + 1); i++) | |
375 | { | |
376 | args[i] = Qnil; | |
377 | visargs[i] = Qnil; | |
378 | varies[i] = 0; | |
379 | } | |
380 | ||
381 | GCPRO4 (prefix_arg, function, *args, *visargs); | |
382 | gcpro3.nvars = (count + 1); | |
383 | gcpro4.nvars = (count + 1); | |
384 | ||
52614803 RS |
385 | if (!NILP (enable)) |
386 | specbind (Qenable_recursive_minibuffers, Qt); | |
387 | ||
ec28a64d | 388 | tem = string; |
46947372 | 389 | for (i = 1; *tem; i++) |
ec28a64d MB |
390 | { |
391 | strncpy (prompt1, tem + 1, sizeof prompt1 - 1); | |
392 | prompt1[sizeof prompt1 - 1] = 0; | |
393 | tem1 = index (prompt1, '\n'); | |
394 | if (tem1) *tem1 = 0; | |
395 | /* Fill argstrings with a vector of C strings | |
396 | corresponding to the Lisp strings in visargs. */ | |
397 | for (j = 1; j < i; j++) | |
398 | argstrings[j] | |
399 | = EQ (visargs[j], Qnil) | |
400 | ? (unsigned char *) "" | |
46947372 | 401 | : XSTRING (visargs[j])->data; |
ec28a64d MB |
402 | |
403 | doprnt (prompt, sizeof prompt, prompt1, 0, j - 1, argstrings + 1); | |
404 | ||
405 | switch (*tem) | |
406 | { | |
407 | case 'a': /* Symbol defined as a function */ | |
408 | visargs[i] = Fcompleting_read (build_string (prompt), | |
409 | Vobarray, Qfboundp, Qt, Qnil, Qnil); | |
410 | /* Passing args[i] directly stimulates compiler bug */ | |
411 | teml = visargs[i]; | |
412 | args[i] = Fintern (teml, Qnil); | |
413 | break; | |
414 | ||
415 | case 'b': /* Name of existing buffer */ | |
416 | args[i] = Fcurrent_buffer (); | |
417 | if (EQ (selected_window, minibuf_window)) | |
9262fcb6 | 418 | args[i] = Fother_buffer (args[i], Qnil); |
ec28a64d MB |
419 | args[i] = Fread_buffer (build_string (prompt), args[i], Qt); |
420 | break; | |
421 | ||
422 | case 'B': /* Name of buffer, possibly nonexistent */ | |
423 | args[i] = Fread_buffer (build_string (prompt), | |
9262fcb6 RS |
424 | Fother_buffer (Fcurrent_buffer (), Qnil), |
425 | Qnil); | |
ec28a64d MB |
426 | break; |
427 | ||
428 | case 'c': /* Character */ | |
429 | message1 (prompt); | |
430 | args[i] = Fread_char (); | |
431 | /* Passing args[i] directly stimulates compiler bug */ | |
432 | teml = args[i]; | |
433 | visargs[i] = Fchar_to_string (teml); | |
434 | break; | |
435 | ||
436 | case 'C': /* Command: symbol with interactive function */ | |
437 | visargs[i] = Fcompleting_read (build_string (prompt), | |
438 | Vobarray, Qcommandp, Qt, Qnil, Qnil); | |
439 | /* Passing args[i] directly stimulates compiler bug */ | |
440 | teml = visargs[i]; | |
441 | args[i] = Fintern (teml, Qnil); | |
442 | break; | |
443 | ||
444 | case 'd': /* Value of point. Does not do I/O. */ | |
acab6442 | 445 | XSETFASTINT (args[i], point); |
ec28a64d MB |
446 | /* visargs[i] = Qnil; */ |
447 | varies[i] = 1; | |
448 | break; | |
449 | ||
ec28a64d MB |
450 | case 'D': /* Directory name. */ |
451 | args[i] = Fread_file_name (build_string (prompt), Qnil, | |
452 | current_buffer->directory, Qlambda, Qnil); | |
453 | break; | |
454 | ||
455 | case 'f': /* Existing file name. */ | |
456 | args[i] = Fread_file_name (build_string (prompt), | |
457 | Qnil, Qnil, Qlambda, Qnil); | |
458 | break; | |
459 | ||
460 | case 'F': /* Possibly nonexistent file name. */ | |
461 | args[i] = Fread_file_name (build_string (prompt), | |
462 | Qnil, Qnil, Qnil, Qnil); | |
463 | break; | |
464 | ||
1989e7bc RS |
465 | case 'k': /* Key sequence. */ |
466 | args[i] = Fread_key_sequence (build_string (prompt), Qnil, Qnil); | |
467 | teml = args[i]; | |
468 | visargs[i] = Fkey_description (teml); | |
469 | break; | |
470 | ||
471 | case 'K': /* Key sequence to be defined. */ | |
472 | args[i] = Fread_key_sequence (build_string (prompt), Qnil, Qt); | |
ec28a64d MB |
473 | teml = args[i]; |
474 | visargs[i] = Fkey_description (teml); | |
475 | break; | |
476 | ||
bc78232c | 477 | case 'e': /* The invoking event. */ |
bc78232c JB |
478 | if (next_event >= this_command_key_count) |
479 | error ("%s must be bound to an event with parameters", | |
6e54b3de | 480 | (SYMBOLP (function) |
63007de2 | 481 | ? (char *) XSYMBOL (function)->name->data |
bc78232c | 482 | : "command")); |
7e6491d3 | 483 | args[i] = XVECTOR (this_command_keys)->contents[next_event++]; |
e5d77022 | 484 | varies[i] = -1; |
dbc4e1c1 JB |
485 | |
486 | /* Find the next parameterized event. */ | |
487 | while (next_event < this_command_key_count | |
488 | && ! (EVENT_HAS_PARAMETERS | |
489 | (XVECTOR (this_command_keys)->contents[next_event]))) | |
490 | next_event++; | |
491 | ||
63007de2 JB |
492 | break; |
493 | ||
ec28a64d MB |
494 | case 'm': /* Value of mark. Does not do I/O. */ |
495 | check_mark (); | |
496 | /* visargs[i] = Qnil; */ | |
acab6442 | 497 | XSETFASTINT (args[i], marker_position (current_buffer->mark)); |
ec28a64d MB |
498 | varies[i] = 2; |
499 | break; | |
500 | ||
501 | case 'N': /* Prefix arg, else number from minibuffer */ | |
265a9e55 | 502 | if (!NILP (prefix_arg)) |
ec28a64d MB |
503 | goto have_prefix_arg; |
504 | case 'n': /* Read number from minibuffer. */ | |
505 | do | |
506 | args[i] = Fread_minibuffer (build_string (prompt), Qnil); | |
4746118a | 507 | while (! NUMBERP (args[i])); |
ec28a64d MB |
508 | visargs[i] = last_minibuf_string; |
509 | break; | |
510 | ||
511 | case 'P': /* Prefix arg in raw form. Does no I/O. */ | |
512 | have_prefix_arg: | |
513 | args[i] = prefix_arg; | |
514 | /* visargs[i] = Qnil; */ | |
515 | varies[i] = -1; | |
516 | break; | |
517 | ||
518 | case 'p': /* Prefix arg converted to number. No I/O. */ | |
519 | args[i] = Fprefix_numeric_value (prefix_arg); | |
520 | /* visargs[i] = Qnil; */ | |
521 | varies[i] = -1; | |
522 | break; | |
523 | ||
524 | case 'r': /* Region, point and mark as 2 args. */ | |
525 | check_mark (); | |
526 | /* visargs[i+1] = Qnil; */ | |
527 | foo = marker_position (current_buffer->mark); | |
528 | /* visargs[i] = Qnil; */ | |
acab6442 | 529 | XSETFASTINT (args[i], point < foo ? point : foo); |
ec28a64d | 530 | varies[i] = 3; |
acab6442 | 531 | XSETFASTINT (args[++i], point > foo ? point : foo); |
ec28a64d MB |
532 | varies[i] = 4; |
533 | break; | |
534 | ||
535 | case 's': /* String read via minibuffer. */ | |
536 | args[i] = Fread_string (build_string (prompt), Qnil); | |
537 | break; | |
538 | ||
539 | case 'S': /* Any symbol. */ | |
be58fa58 | 540 | visargs[i] = Fread_string (build_string (prompt), Qnil); |
ec28a64d MB |
541 | /* Passing args[i] directly stimulates compiler bug */ |
542 | teml = visargs[i]; | |
543 | args[i] = Fintern (teml, Qnil); | |
544 | break; | |
545 | ||
546 | case 'v': /* Variable name: symbol that is | |
547 | user-variable-p. */ | |
548 | args[i] = Fread_variable (build_string (prompt)); | |
549 | visargs[i] = last_minibuf_string; | |
550 | break; | |
551 | ||
552 | case 'x': /* Lisp expression read but not evaluated */ | |
553 | args[i] = Fread_minibuffer (build_string (prompt), Qnil); | |
554 | visargs[i] = last_minibuf_string; | |
555 | break; | |
556 | ||
557 | case 'X': /* Lisp expression read and evaluated */ | |
558 | args[i] = Feval_minibuffer (build_string (prompt), Qnil); | |
559 | visargs[i] = last_minibuf_string; | |
560 | break; | |
561 | ||
562 | default: | |
563 | error ("Invalid control letter \"%c\" (%03o) in interactive calling string", | |
564 | *tem, *tem); | |
565 | } | |
566 | ||
567 | if (varies[i] == 0) | |
568 | arg_from_tty = 1; | |
569 | ||
6e54b3de | 570 | if (NILP (visargs[i]) && STRINGP (args[i])) |
ec28a64d MB |
571 | visargs[i] = args[i]; |
572 | ||
573 | tem = (unsigned char *) index (tem, '\n'); | |
574 | if (tem) tem++; | |
575 | else tem = (unsigned char *) ""; | |
576 | } | |
52614803 | 577 | unbind_to (speccount, Qnil); |
ec28a64d MB |
578 | |
579 | QUIT; | |
580 | ||
581 | args[0] = function; | |
582 | ||
265a9e55 | 583 | if (arg_from_tty || !NILP (record)) |
ec28a64d MB |
584 | { |
585 | visargs[0] = function; | |
63007de2 JB |
586 | for (i = 1; i < count + 1; i++) |
587 | if (varies[i] > 0) | |
ec28a64d MB |
588 | visargs[i] = Fcons (intern (callint_argfuns[varies[i]]), Qnil); |
589 | else | |
590 | visargs[i] = quotify_arg (args[i]); | |
591 | Vcommand_history = Fcons (Flist (count + 1, visargs), | |
592 | Vcommand_history); | |
593 | } | |
594 | ||
595 | { | |
596 | Lisp_Object val; | |
ec28a64d MB |
597 | specbind (Qcommand_debug_status, Qnil); |
598 | ||
599 | val = Ffuncall (count + 1, args); | |
600 | UNGCPRO; | |
601 | return unbind_to (speccount, val); | |
602 | } | |
603 | } | |
604 | ||
605 | DEFUN ("prefix-numeric-value", Fprefix_numeric_value, Sprefix_numeric_value, | |
606 | 1, 1, 0, | |
607 | "Return numeric meaning of raw prefix argument ARG.\n\ | |
608 | A raw prefix argument is what you get from `(interactive \"P\")'.\n\ | |
609 | Its numeric meaning is what you would get from `(interactive \"p\")'.") | |
610 | (raw) | |
611 | Lisp_Object raw; | |
612 | { | |
613 | Lisp_Object val; | |
614 | ||
265a9e55 | 615 | if (NILP (raw)) |
acab6442 | 616 | XSETFASTINT (val, 1); |
fd5285f3 | 617 | else if (EQ (raw, Qminus)) |
ec28a64d MB |
618 | XSETINT (val, -1); |
619 | else if (CONSP (raw)) | |
620 | XSETINT (val, XINT (XCONS (raw)->car)); | |
6e54b3de | 621 | else if (INTEGERP (raw)) |
ec28a64d MB |
622 | val = raw; |
623 | else | |
acab6442 | 624 | XSETFASTINT (val, 1); |
ec28a64d MB |
625 | |
626 | return val; | |
627 | } | |
628 | ||
629 | syms_of_callint () | |
630 | { | |
03e130d5 RS |
631 | preserved_fns = Fcons (intern ("region-beginning"), |
632 | Fcons (intern ("region-end"), | |
633 | Fcons (intern ("point"), | |
634 | Fcons (intern ("mark"), Qnil)))); | |
635 | staticpro (&preserved_fns); | |
636 | ||
637 | Qlist = intern ("list"); | |
638 | staticpro (&Qlist); | |
639 | ||
ec28a64d MB |
640 | Qminus = intern ("-"); |
641 | staticpro (&Qminus); | |
642 | ||
fdb4a38c RS |
643 | Qplus = intern ("+"); |
644 | staticpro (&Qplus); | |
645 | ||
ec28a64d MB |
646 | Qcall_interactively = intern ("call-interactively"); |
647 | staticpro (&Qcall_interactively); | |
648 | ||
649 | Qcommand_debug_status = intern ("command-debug-status"); | |
650 | staticpro (&Qcommand_debug_status); | |
651 | ||
52614803 RS |
652 | Qenable_recursive_minibuffers = intern ("enable-recursive-minibuffers"); |
653 | staticpro (&Qenable_recursive_minibuffers); | |
654 | ||
ef2515c0 RS |
655 | Qmouse_leave_buffer_hook = intern ("mouse-leave-buffer-hook"); |
656 | staticpro (&Qmouse_leave_buffer_hook); | |
657 | ||
ec28a64d MB |
658 | DEFVAR_LISP ("prefix-arg", &Vprefix_arg, |
659 | "The value of the prefix argument for the next editing command.\n\ | |
660 | It may be a number, or the symbol `-' for just a minus sign as arg,\n\ | |
661 | or a list whose car is a number for just one or more C-U's\n\ | |
662 | or nil if no argument has been specified.\n\ | |
663 | \n\ | |
664 | You cannot examine this variable to find the argument for this command\n\ | |
665 | since it has been set to nil by the time you can look.\n\ | |
666 | Instead, you should use the variable `current-prefix-arg', although\n\ | |
667 | normally commands can get this prefix argument with (interactive \"P\")."); | |
668 | Vprefix_arg = Qnil; | |
669 | ||
670 | DEFVAR_LISP ("current-prefix-arg", &Vcurrent_prefix_arg, | |
671 | "The value of the prefix argument for this editing command.\n\ | |
672 | It may be a number, or the symbol `-' for just a minus sign as arg,\n\ | |
673 | or a list whose car is a number for just one or more C-U's\n\ | |
674 | or nil if no argument has been specified.\n\ | |
675 | This is what `(interactive \"P\")' returns."); | |
676 | Vcurrent_prefix_arg = Qnil; | |
677 | ||
678 | DEFVAR_LISP ("command-history", &Vcommand_history, | |
679 | "List of recent commands that read arguments from terminal.\n\ | |
680 | Each command is represented as a form to evaluate."); | |
681 | Vcommand_history = Qnil; | |
682 | ||
683 | DEFVAR_LISP ("command-debug-status", &Vcommand_debug_status, | |
684 | "Debugging status of current interactive command.\n\ | |
685 | Bound each time `call-interactively' is called;\n\ | |
686 | may be set by the debugger as a reminder for itself."); | |
687 | Vcommand_debug_status = Qnil; | |
688 | ||
2ad6c959 | 689 | DEFVAR_LISP ("mark-even-if-inactive", &Vmark_even_if_inactive, |
9f315aeb RS |
690 | "*Non-nil means you can use the mark even when inactive.\n\ |
691 | This option makes a difference in Transient Mark mode.\n\ | |
692 | When the option is non-nil, deactivation of the mark\n\ | |
693 | turns off region highlighting, but commands that use the mark\n\ | |
694 | behave as if the mark were still active."); | |
695 | Vmark_even_if_inactive = Qnil; | |
696 | ||
ef2515c0 RS |
697 | DEFVAR_LISP ("mouse-leave-buffer-hook", &Vmouse_leave_buffer_hook, |
698 | "Hook to run when about to switch windows with a mouse command.\n\ | |
699 | Its purpose is to give temporary modes such as Isearch mode\n\ | |
700 | a way to turn themselves off when a mouse command switches windows."); | |
701 | Vmouse_leave_buffer_hook = Qnil; | |
702 | ||
ec28a64d MB |
703 | defsubr (&Sinteractive); |
704 | defsubr (&Scall_interactively); | |
705 | defsubr (&Sprefix_numeric_value); | |
706 | } |