Commit | Line | Data |
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ec28a64d | 1 | /* Call a Lisp function interactively. |
3a22ee35 | 2 | Copyright (C) 1985, 1986, 1993, 1994 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 | ||
31 | Lisp_Object Vprefix_arg, Vcurrent_prefix_arg, Qminus; | |
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 | ||
03e130d5 RS |
42 | Lisp_Object Qlist; |
43 | Lisp_Object preserved_fns; | |
44 | ||
ec28a64d MB |
45 | /* This comment supplies the doc string for interactive, |
46 | for make-docfile to see. We cannot put this in the real DEFUN | |
47 | due to limits in the Unix cpp. | |
48 | ||
49 | DEFUN ("interactive", Ffoo, Sfoo, 0, 0, 0, | |
50 | "Specify a way of parsing arguments for interactive use of a function.\n\ | |
51 | For example, write\n\ | |
52 | (defun foo (arg) \"Doc string\" (interactive \"p\") ...use arg...)\n\ | |
53 | to make ARG be the prefix argument when `foo' is called as a command.\n\ | |
54 | The \"call\" to `interactive' is actually a declaration rather than a function;\n\ | |
55 | it tells `call-interactively' how to read arguments\n\ | |
56 | to pass to the function.\n\ | |
57 | When actually called, `interactive' just returns nil.\n\ | |
58 | \n\ | |
59 | The argument of `interactive' is usually a string containing a code letter\n\ | |
60 | followed by a prompt. (Some code letters do not use I/O to get\n\ | |
61 | the argument and do not need prompts.) To prompt for multiple arguments,\n\ | |
62 | give a code letter, its prompt, a newline, and another code letter, etc.\n\ | |
63 | Prompts are passed to format, and may use % escapes to print the\n\ | |
64 | arguments that have already been read.\n\ | |
65 | If the argument is not a string, it is evaluated to get a list of\n\ | |
66 | arguments to pass to the function.\n\ | |
67 | Just `(interactive)' means pass no args when calling interactively.\n\ | |
68 | \nCode letters available are:\n\ | |
69 | a -- Function name: symbol with a function definition.\n\ | |
70 | b -- Name of existing buffer.\n\ | |
71 | B -- Name of buffer, possibly nonexistent.\n\ | |
72 | c -- Character.\n\ | |
73 | C -- Command name: symbol with interactive function definition.\n\ | |
74 | d -- Value of point as number. Does not do I/O.\n\ | |
75 | D -- Directory name.\n\ | |
4d1f43c0 RS |
76 | e -- Parametrized event (i.e., one that's a list) that invoked this command.\n\ |
77 | If used more than once, the Nth `e' returns the Nth parameterized event.\n\ | |
78 | This skips events that are integers or symbols.\n\ | |
ec28a64d MB |
79 | f -- Existing file name.\n\ |
80 | F -- Possibly nonexistent file name.\n\ | |
81 | k -- Key sequence (string).\n\ | |
82 | m -- Value of mark as number. Does not do I/O.\n\ | |
83 | n -- Number read using minibuffer.\n\ | |
84 | N -- Prefix arg converted to number, or if none, do like code `n'.\n\ | |
85 | p -- Prefix arg converted to number. Does not do I/O.\n\ | |
86 | P -- Prefix arg in raw form. Does not do I/O.\n\ | |
87 | r -- Region: point and mark as 2 numeric args, smallest first. Does no I/O.\n\ | |
88 | s -- Any string.\n\ | |
89 | S -- Any symbol.\n\ | |
90 | v -- Variable name: symbol that is user-variable-p.\n\ | |
91 | x -- Lisp expression read but not evaluated.\n\ | |
92 | X -- Lisp expression read and evaluated.\n\ | |
93 | In addition, if the string begins with `*'\n\ | |
94 | then an error is signaled if the buffer is read-only.\n\ | |
95 | This happens before reading any arguments.\n\ | |
dbc4e1c1 JB |
96 | If the string begins with `@', then Emacs searches the key sequence\n\ |
97 | which invoked the command for its first mouse click (or any other\n\ | |
98 | event which specifies a window), and selects that window before\n\ | |
99 | reading any arguments. You may use both `@' and `*'; they are\n\ | |
100 | processed in the order that they appear." */ | |
ec28a64d MB |
101 | |
102 | /* ARGSUSED */ | |
103 | DEFUN ("interactive", Finteractive, Sinteractive, 0, UNEVALLED, 0, | |
104 | 0 /* See immediately above */) | |
105 | (args) | |
106 | Lisp_Object args; | |
107 | { | |
108 | return Qnil; | |
109 | } | |
110 | ||
111 | /* Quotify EXP: if EXP is constant, return it. | |
112 | If EXP is not constant, return (quote EXP). */ | |
113 | Lisp_Object | |
114 | quotify_arg (exp) | |
115 | register Lisp_Object exp; | |
116 | { | |
117 | if (XTYPE (exp) != Lisp_Int && XTYPE (exp) != Lisp_String | |
265a9e55 | 118 | && !NILP (exp) && !EQ (exp, Qt)) |
ec28a64d MB |
119 | return Fcons (Qquote, Fcons (exp, Qnil)); |
120 | ||
121 | return exp; | |
122 | } | |
123 | ||
124 | /* Modify EXP by quotifying each element (except the first). */ | |
125 | Lisp_Object | |
126 | quotify_args (exp) | |
127 | Lisp_Object exp; | |
128 | { | |
129 | register Lisp_Object tail; | |
130 | register struct Lisp_Cons *ptr; | |
131 | for (tail = exp; CONSP (tail); tail = ptr->cdr) | |
132 | { | |
133 | ptr = XCONS (tail); | |
134 | ptr->car = quotify_arg (ptr->car); | |
135 | } | |
136 | return exp; | |
137 | } | |
138 | ||
139 | char *callint_argfuns[] | |
140 | = {"", "point", "mark", "region-beginning", "region-end"}; | |
141 | ||
142 | static void | |
143 | check_mark () | |
144 | { | |
86c1cf23 KH |
145 | Lisp_Object tem; |
146 | tem = Fmarker_buffer (current_buffer->mark); | |
265a9e55 | 147 | if (NILP (tem) || (XBUFFER (tem) != current_buffer)) |
ec28a64d | 148 | error ("The mark is not set now"); |
6497d2d8 RM |
149 | if (!NILP (Vtransient_mark_mode) && NILP (Vmark_even_if_inactive) |
150 | && NILP (current_buffer->mark_active)) | |
151 | Fsignal (Qmark_inactive, Qnil); | |
ec28a64d MB |
152 | } |
153 | ||
154 | ||
155 | DEFUN ("call-interactively", Fcall_interactively, Scall_interactively, 1, 2, 0, | |
156 | "Call FUNCTION, reading args according to its interactive calling specs.\n\ | |
157 | The function contains a specification of how to do the argument reading.\n\ | |
158 | In the case of user-defined functions, this is specified by placing a call\n\ | |
159 | to the function `interactive' at the top level of the function body.\n\ | |
160 | See `interactive'.\n\ | |
161 | \n\ | |
162 | Optional second arg RECORD-FLAG non-nil\n\ | |
163 | means unconditionally put this command in the command-history.\n\ | |
164 | Otherwise, this is done only if an arg is read using the minibuffer.") | |
165 | (function, record) | |
166 | Lisp_Object function, record; | |
167 | { | |
168 | Lisp_Object *args, *visargs; | |
169 | unsigned char **argstrings; | |
170 | Lisp_Object fun; | |
171 | Lisp_Object funcar; | |
172 | Lisp_Object specs; | |
173 | Lisp_Object teml; | |
52614803 RS |
174 | Lisp_Object enable; |
175 | int speccount = specpdl_ptr - specpdl; | |
ec28a64d | 176 | |
bc78232c JB |
177 | /* The index of the next element of this_command_keys to examine for |
178 | the 'e' interactive code. */ | |
dbc4e1c1 | 179 | int next_event; |
bc78232c | 180 | |
ec28a64d MB |
181 | Lisp_Object prefix_arg; |
182 | unsigned char *string; | |
183 | unsigned char *tem; | |
63007de2 JB |
184 | |
185 | /* If varies[i] > 0, the i'th argument shouldn't just have its value | |
186 | in this call quoted in the command history. It should be | |
187 | recorded as a call to the function named callint_argfuns[varies[i]]. */ | |
ec28a64d | 188 | int *varies; |
63007de2 | 189 | |
ec28a64d MB |
190 | register int i, j; |
191 | int count, foo; | |
192 | char prompt[100]; | |
193 | char prompt1[100]; | |
194 | char *tem1; | |
195 | int arg_from_tty = 0; | |
196 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
197 | ||
e5d77022 | 198 | /* Save this now, since use of minibuffer will clobber it. */ |
ec28a64d MB |
199 | prefix_arg = Vcurrent_prefix_arg; |
200 | ||
46947372 | 201 | retry: |
ec28a64d | 202 | |
afa4c0f3 JB |
203 | if (XTYPE (function) == Lisp_Symbol) |
204 | enable = Fget (function, Qenable_recursive_minibuffers); | |
52614803 | 205 | |
ffd56f97 | 206 | fun = indirect_function (function); |
ec28a64d MB |
207 | |
208 | specs = Qnil; | |
209 | string = 0; | |
210 | ||
211 | /* Decode the kind of function. Either handle it and return, | |
212 | or go to `lose' if not interactive, or go to `retry' | |
213 | to specify a different function, or set either STRING or SPECS. */ | |
214 | ||
215 | if (XTYPE (fun) == Lisp_Subr) | |
216 | { | |
217 | string = (unsigned char *) XSUBR (fun)->prompt; | |
218 | if (!string) | |
219 | { | |
220 | lose: | |
b37902c8 | 221 | function = wrong_type_argument (Qcommandp, function); |
ec28a64d MB |
222 | goto retry; |
223 | } | |
224 | if ((int) string == 1) | |
225 | /* Let SPECS (which is nil) be used as the args. */ | |
226 | string = 0; | |
227 | } | |
228 | else if (XTYPE (fun) == Lisp_Compiled) | |
229 | { | |
230 | if (XVECTOR (fun)->size <= COMPILED_INTERACTIVE) | |
231 | goto lose; | |
232 | specs = XVECTOR (fun)->contents[COMPILED_INTERACTIVE]; | |
233 | } | |
234 | else if (!CONSP (fun)) | |
235 | goto lose; | |
236 | else if (funcar = Fcar (fun), EQ (funcar, Qautoload)) | |
237 | { | |
238 | GCPRO2 (function, prefix_arg); | |
239 | do_autoload (fun, function); | |
240 | UNGCPRO; | |
241 | goto retry; | |
242 | } | |
243 | else if (EQ (funcar, Qlambda)) | |
244 | { | |
245 | specs = Fassq (Qinteractive, Fcdr (Fcdr (fun))); | |
265a9e55 | 246 | if (NILP (specs)) |
ec28a64d MB |
247 | goto lose; |
248 | specs = Fcar (Fcdr (specs)); | |
249 | } | |
250 | else if (EQ (funcar, Qmocklisp)) | |
251 | return ml_apply (fun, Qinteractive); | |
252 | else | |
253 | goto lose; | |
254 | ||
46947372 | 255 | /* If either specs or string is set to a string, use it. */ |
ec28a64d | 256 | if (XTYPE (specs) == Lisp_String) |
46947372 JB |
257 | { |
258 | /* Make a copy of string so that if a GC relocates specs, | |
259 | `string' will still be valid. */ | |
e5d77022 | 260 | string = (unsigned char *) alloca (XSTRING (specs)->size + 1); |
46947372 JB |
261 | bcopy (XSTRING (specs)->data, string, XSTRING (specs)->size + 1); |
262 | } | |
ec28a64d MB |
263 | else if (string == 0) |
264 | { | |
03e130d5 | 265 | Lisp_Object input; |
ec28a64d | 266 | i = num_input_chars; |
03e130d5 RS |
267 | input = specs; |
268 | /* Compute the arg values using the user's expression. */ | |
ec28a64d | 269 | specs = Feval (specs); |
265a9e55 | 270 | if (i != num_input_chars || !NILP (record)) |
03e130d5 RS |
271 | { |
272 | /* We should record this command on the command history. */ | |
273 | Lisp_Object values, car; | |
274 | /* Make a copy of the list of values, for the command history, | |
275 | and turn them into things we can eval. */ | |
276 | values = quotify_args (Fcopy_sequence (specs)); | |
277 | /* If the list of args was produced with an explicit call to `list', | |
278 | look for elements that were computed with (region-beginning) | |
279 | or (region-end), and put those expressions into VALUES | |
280 | instead of the present values. */ | |
281 | car = Fcar (input); | |
282 | if (EQ (car, Qlist)) | |
283 | { | |
284 | Lisp_Object intail, valtail; | |
285 | for (intail = Fcdr (input), valtail = values; | |
286 | CONSP (valtail); | |
287 | intail = Fcdr (intail), valtail = Fcdr (valtail)) | |
288 | { | |
289 | Lisp_Object elt; | |
290 | elt = Fcar (intail); | |
291 | if (CONSP (elt)) | |
292 | { | |
293 | Lisp_Object presflag; | |
294 | presflag = Fmemq (Fcar (elt), preserved_fns); | |
295 | if (!NILP (presflag)) | |
296 | Fsetcar (valtail, Fcar (intail)); | |
297 | } | |
298 | } | |
299 | } | |
300 | Vcommand_history | |
301 | = Fcons (Fcons (function, values), Vcommand_history); | |
302 | } | |
ec28a64d MB |
303 | return apply1 (function, specs); |
304 | } | |
305 | ||
306 | /* Here if function specifies a string to control parsing the defaults */ | |
307 | ||
dbc4e1c1 JB |
308 | /* Set next_event to point to the first event with parameters. */ |
309 | for (next_event = 0; next_event < this_command_key_count; next_event++) | |
310 | if (EVENT_HAS_PARAMETERS | |
311 | (XVECTOR (this_command_keys)->contents[next_event])) | |
312 | break; | |
313 | ||
ec28a64d MB |
314 | /* Handle special starting chars `*' and `@'. */ |
315 | while (1) | |
316 | { | |
317 | if (*string == '*') | |
318 | { | |
319 | string++; | |
265a9e55 | 320 | if (!NILP (current_buffer->read_only)) |
ec28a64d MB |
321 | Fbarf_if_buffer_read_only (); |
322 | } | |
323 | else if (*string == '@') | |
324 | { | |
86c1cf23 | 325 | Lisp_Object event; |
dbc4e1c1 | 326 | |
86c1cf23 | 327 | event = XVECTOR (this_command_keys)->contents[next_event]; |
dbc4e1c1 JB |
328 | if (EVENT_HAS_PARAMETERS (event) |
329 | && XTYPE (event = XCONS (event)->cdr) == Lisp_Cons | |
330 | && XTYPE (event = XCONS (event)->car) == Lisp_Cons | |
331 | && XTYPE (event = XCONS (event)->car) == Lisp_Window) | |
d1fa2e8a | 332 | { |
d68807fc | 333 | if (MINI_WINDOW_P (XWINDOW (event)) |
d1fa2e8a | 334 | && NILP (call1 (intern ("minibuffer-window-active-p"), |
d68807fc | 335 | event))) |
d1fa2e8a KH |
336 | error ("Attempt to select inactive minibuffer window"); |
337 | Fselect_window (event); | |
338 | } | |
ec28a64d | 339 | string++; |
ec28a64d MB |
340 | } |
341 | else break; | |
342 | } | |
343 | ||
344 | /* Count the number of arguments the interactive spec would have | |
345 | us give to the function. */ | |
346 | tem = string; | |
347 | for (j = 0; *tem; j++) | |
348 | { | |
349 | /* 'r' specifications ("point and mark as 2 numeric args") | |
350 | produce *two* arguments. */ | |
351 | if (*tem == 'r') j++; | |
352 | tem = (unsigned char *) index (tem, '\n'); | |
353 | if (tem) | |
354 | tem++; | |
355 | else | |
356 | tem = (unsigned char *) ""; | |
357 | } | |
358 | count = j; | |
359 | ||
360 | args = (Lisp_Object *) alloca ((count + 1) * sizeof (Lisp_Object)); | |
361 | visargs = (Lisp_Object *) alloca ((count + 1) * sizeof (Lisp_Object)); | |
362 | argstrings = (unsigned char **) alloca ((count + 1) * sizeof (char *)); | |
363 | varies = (int *) alloca ((count + 1) * sizeof (int)); | |
364 | ||
365 | for (i = 0; i < (count + 1); i++) | |
366 | { | |
367 | args[i] = Qnil; | |
368 | visargs[i] = Qnil; | |
369 | varies[i] = 0; | |
370 | } | |
371 | ||
372 | GCPRO4 (prefix_arg, function, *args, *visargs); | |
373 | gcpro3.nvars = (count + 1); | |
374 | gcpro4.nvars = (count + 1); | |
375 | ||
52614803 RS |
376 | if (!NILP (enable)) |
377 | specbind (Qenable_recursive_minibuffers, Qt); | |
378 | ||
ec28a64d | 379 | tem = string; |
46947372 | 380 | for (i = 1; *tem; i++) |
ec28a64d MB |
381 | { |
382 | strncpy (prompt1, tem + 1, sizeof prompt1 - 1); | |
383 | prompt1[sizeof prompt1 - 1] = 0; | |
384 | tem1 = index (prompt1, '\n'); | |
385 | if (tem1) *tem1 = 0; | |
386 | /* Fill argstrings with a vector of C strings | |
387 | corresponding to the Lisp strings in visargs. */ | |
388 | for (j = 1; j < i; j++) | |
389 | argstrings[j] | |
390 | = EQ (visargs[j], Qnil) | |
391 | ? (unsigned char *) "" | |
46947372 | 392 | : XSTRING (visargs[j])->data; |
ec28a64d MB |
393 | |
394 | doprnt (prompt, sizeof prompt, prompt1, 0, j - 1, argstrings + 1); | |
395 | ||
396 | switch (*tem) | |
397 | { | |
398 | case 'a': /* Symbol defined as a function */ | |
399 | visargs[i] = Fcompleting_read (build_string (prompt), | |
400 | Vobarray, Qfboundp, Qt, Qnil, Qnil); | |
401 | /* Passing args[i] directly stimulates compiler bug */ | |
402 | teml = visargs[i]; | |
403 | args[i] = Fintern (teml, Qnil); | |
404 | break; | |
405 | ||
406 | case 'b': /* Name of existing buffer */ | |
407 | args[i] = Fcurrent_buffer (); | |
408 | if (EQ (selected_window, minibuf_window)) | |
9262fcb6 | 409 | args[i] = Fother_buffer (args[i], Qnil); |
ec28a64d MB |
410 | args[i] = Fread_buffer (build_string (prompt), args[i], Qt); |
411 | break; | |
412 | ||
413 | case 'B': /* Name of buffer, possibly nonexistent */ | |
414 | args[i] = Fread_buffer (build_string (prompt), | |
9262fcb6 RS |
415 | Fother_buffer (Fcurrent_buffer (), Qnil), |
416 | Qnil); | |
ec28a64d MB |
417 | break; |
418 | ||
419 | case 'c': /* Character */ | |
420 | message1 (prompt); | |
421 | args[i] = Fread_char (); | |
422 | /* Passing args[i] directly stimulates compiler bug */ | |
423 | teml = args[i]; | |
424 | visargs[i] = Fchar_to_string (teml); | |
425 | break; | |
426 | ||
427 | case 'C': /* Command: symbol with interactive function */ | |
428 | visargs[i] = Fcompleting_read (build_string (prompt), | |
429 | Vobarray, Qcommandp, Qt, Qnil, Qnil); | |
430 | /* Passing args[i] directly stimulates compiler bug */ | |
431 | teml = visargs[i]; | |
432 | args[i] = Fintern (teml, Qnil); | |
433 | break; | |
434 | ||
435 | case 'd': /* Value of point. Does not do I/O. */ | |
436 | XFASTINT (args[i]) = point; | |
437 | /* visargs[i] = Qnil; */ | |
438 | varies[i] = 1; | |
439 | break; | |
440 | ||
ec28a64d MB |
441 | case 'D': /* Directory name. */ |
442 | args[i] = Fread_file_name (build_string (prompt), Qnil, | |
443 | current_buffer->directory, Qlambda, Qnil); | |
444 | break; | |
445 | ||
446 | case 'f': /* Existing file name. */ | |
447 | args[i] = Fread_file_name (build_string (prompt), | |
448 | Qnil, Qnil, Qlambda, Qnil); | |
449 | break; | |
450 | ||
451 | case 'F': /* Possibly nonexistent file name. */ | |
452 | args[i] = Fread_file_name (build_string (prompt), | |
453 | Qnil, Qnil, Qnil, Qnil); | |
454 | break; | |
455 | ||
456 | case 'k': /* Key sequence (string) */ | |
63007de2 | 457 | args[i] = Fread_key_sequence (build_string (prompt), Qnil); |
ec28a64d MB |
458 | teml = args[i]; |
459 | visargs[i] = Fkey_description (teml); | |
460 | break; | |
461 | ||
bc78232c | 462 | case 'e': /* The invoking event. */ |
bc78232c JB |
463 | if (next_event >= this_command_key_count) |
464 | error ("%s must be bound to an event with parameters", | |
63007de2 JB |
465 | (XTYPE (function) == Lisp_Symbol |
466 | ? (char *) XSYMBOL (function)->name->data | |
bc78232c | 467 | : "command")); |
7e6491d3 | 468 | args[i] = XVECTOR (this_command_keys)->contents[next_event++]; |
e5d77022 | 469 | varies[i] = -1; |
dbc4e1c1 JB |
470 | |
471 | /* Find the next parameterized event. */ | |
472 | while (next_event < this_command_key_count | |
473 | && ! (EVENT_HAS_PARAMETERS | |
474 | (XVECTOR (this_command_keys)->contents[next_event]))) | |
475 | next_event++; | |
476 | ||
63007de2 JB |
477 | break; |
478 | ||
ec28a64d MB |
479 | case 'm': /* Value of mark. Does not do I/O. */ |
480 | check_mark (); | |
481 | /* visargs[i] = Qnil; */ | |
482 | XFASTINT (args[i]) = marker_position (current_buffer->mark); | |
483 | varies[i] = 2; | |
484 | break; | |
485 | ||
486 | case 'N': /* Prefix arg, else number from minibuffer */ | |
265a9e55 | 487 | if (!NILP (prefix_arg)) |
ec28a64d MB |
488 | goto have_prefix_arg; |
489 | case 'n': /* Read number from minibuffer. */ | |
490 | do | |
491 | args[i] = Fread_minibuffer (build_string (prompt), Qnil); | |
4746118a | 492 | while (! NUMBERP (args[i])); |
ec28a64d MB |
493 | visargs[i] = last_minibuf_string; |
494 | break; | |
495 | ||
496 | case 'P': /* Prefix arg in raw form. Does no I/O. */ | |
497 | have_prefix_arg: | |
498 | args[i] = prefix_arg; | |
499 | /* visargs[i] = Qnil; */ | |
500 | varies[i] = -1; | |
501 | break; | |
502 | ||
503 | case 'p': /* Prefix arg converted to number. No I/O. */ | |
504 | args[i] = Fprefix_numeric_value (prefix_arg); | |
505 | /* visargs[i] = Qnil; */ | |
506 | varies[i] = -1; | |
507 | break; | |
508 | ||
509 | case 'r': /* Region, point and mark as 2 args. */ | |
510 | check_mark (); | |
511 | /* visargs[i+1] = Qnil; */ | |
512 | foo = marker_position (current_buffer->mark); | |
513 | /* visargs[i] = Qnil; */ | |
514 | XFASTINT (args[i]) = point < foo ? point : foo; | |
515 | varies[i] = 3; | |
516 | XFASTINT (args[++i]) = point > foo ? point : foo; | |
517 | varies[i] = 4; | |
518 | break; | |
519 | ||
520 | case 's': /* String read via minibuffer. */ | |
521 | args[i] = Fread_string (build_string (prompt), Qnil); | |
522 | break; | |
523 | ||
524 | case 'S': /* Any symbol. */ | |
be58fa58 | 525 | visargs[i] = Fread_string (build_string (prompt), Qnil); |
ec28a64d MB |
526 | /* Passing args[i] directly stimulates compiler bug */ |
527 | teml = visargs[i]; | |
528 | args[i] = Fintern (teml, Qnil); | |
529 | break; | |
530 | ||
531 | case 'v': /* Variable name: symbol that is | |
532 | user-variable-p. */ | |
533 | args[i] = Fread_variable (build_string (prompt)); | |
534 | visargs[i] = last_minibuf_string; | |
535 | break; | |
536 | ||
537 | case 'x': /* Lisp expression read but not evaluated */ | |
538 | args[i] = Fread_minibuffer (build_string (prompt), Qnil); | |
539 | visargs[i] = last_minibuf_string; | |
540 | break; | |
541 | ||
542 | case 'X': /* Lisp expression read and evaluated */ | |
543 | args[i] = Feval_minibuffer (build_string (prompt), Qnil); | |
544 | visargs[i] = last_minibuf_string; | |
545 | break; | |
546 | ||
547 | default: | |
548 | error ("Invalid control letter \"%c\" (%03o) in interactive calling string", | |
549 | *tem, *tem); | |
550 | } | |
551 | ||
552 | if (varies[i] == 0) | |
553 | arg_from_tty = 1; | |
554 | ||
265a9e55 | 555 | if (NILP (visargs[i]) && XTYPE (args[i]) == Lisp_String) |
ec28a64d MB |
556 | visargs[i] = args[i]; |
557 | ||
558 | tem = (unsigned char *) index (tem, '\n'); | |
559 | if (tem) tem++; | |
560 | else tem = (unsigned char *) ""; | |
561 | } | |
52614803 | 562 | unbind_to (speccount, Qnil); |
ec28a64d MB |
563 | |
564 | QUIT; | |
565 | ||
566 | args[0] = function; | |
567 | ||
265a9e55 | 568 | if (arg_from_tty || !NILP (record)) |
ec28a64d MB |
569 | { |
570 | visargs[0] = function; | |
63007de2 JB |
571 | for (i = 1; i < count + 1; i++) |
572 | if (varies[i] > 0) | |
ec28a64d MB |
573 | visargs[i] = Fcons (intern (callint_argfuns[varies[i]]), Qnil); |
574 | else | |
575 | visargs[i] = quotify_arg (args[i]); | |
576 | Vcommand_history = Fcons (Flist (count + 1, visargs), | |
577 | Vcommand_history); | |
578 | } | |
579 | ||
580 | { | |
581 | Lisp_Object val; | |
ec28a64d MB |
582 | specbind (Qcommand_debug_status, Qnil); |
583 | ||
584 | val = Ffuncall (count + 1, args); | |
585 | UNGCPRO; | |
586 | return unbind_to (speccount, val); | |
587 | } | |
588 | } | |
589 | ||
590 | DEFUN ("prefix-numeric-value", Fprefix_numeric_value, Sprefix_numeric_value, | |
591 | 1, 1, 0, | |
592 | "Return numeric meaning of raw prefix argument ARG.\n\ | |
593 | A raw prefix argument is what you get from `(interactive \"P\")'.\n\ | |
594 | Its numeric meaning is what you would get from `(interactive \"p\")'.") | |
595 | (raw) | |
596 | Lisp_Object raw; | |
597 | { | |
598 | Lisp_Object val; | |
599 | ||
600 | /* Tag val as an integer, so the rest of the assignments | |
601 | may use XSETINT. */ | |
602 | XFASTINT (val) = 0; | |
603 | ||
265a9e55 | 604 | if (NILP (raw)) |
ec28a64d | 605 | XFASTINT (val) = 1; |
fd5285f3 | 606 | else if (EQ (raw, Qminus)) |
ec28a64d MB |
607 | XSETINT (val, -1); |
608 | else if (CONSP (raw)) | |
609 | XSETINT (val, XINT (XCONS (raw)->car)); | |
610 | else if (XTYPE (raw) == Lisp_Int) | |
611 | val = raw; | |
612 | else | |
613 | XFASTINT (val) = 1; | |
614 | ||
615 | return val; | |
616 | } | |
617 | ||
618 | syms_of_callint () | |
619 | { | |
03e130d5 RS |
620 | preserved_fns = Fcons (intern ("region-beginning"), |
621 | Fcons (intern ("region-end"), | |
622 | Fcons (intern ("point"), | |
623 | Fcons (intern ("mark"), Qnil)))); | |
624 | staticpro (&preserved_fns); | |
625 | ||
626 | Qlist = intern ("list"); | |
627 | staticpro (&Qlist); | |
628 | ||
ec28a64d MB |
629 | Qminus = intern ("-"); |
630 | staticpro (&Qminus); | |
631 | ||
632 | Qcall_interactively = intern ("call-interactively"); | |
633 | staticpro (&Qcall_interactively); | |
634 | ||
635 | Qcommand_debug_status = intern ("command-debug-status"); | |
636 | staticpro (&Qcommand_debug_status); | |
637 | ||
52614803 RS |
638 | Qenable_recursive_minibuffers = intern ("enable-recursive-minibuffers"); |
639 | staticpro (&Qenable_recursive_minibuffers); | |
640 | ||
ec28a64d MB |
641 | DEFVAR_LISP ("prefix-arg", &Vprefix_arg, |
642 | "The value of the prefix argument for the next editing command.\n\ | |
643 | It may be a number, or the symbol `-' for just a minus sign as arg,\n\ | |
644 | or a list whose car is a number for just one or more C-U's\n\ | |
645 | or nil if no argument has been specified.\n\ | |
646 | \n\ | |
647 | You cannot examine this variable to find the argument for this command\n\ | |
648 | since it has been set to nil by the time you can look.\n\ | |
649 | Instead, you should use the variable `current-prefix-arg', although\n\ | |
650 | normally commands can get this prefix argument with (interactive \"P\")."); | |
651 | Vprefix_arg = Qnil; | |
652 | ||
653 | DEFVAR_LISP ("current-prefix-arg", &Vcurrent_prefix_arg, | |
654 | "The value of the prefix argument for this editing command.\n\ | |
655 | It may be a number, or the symbol `-' for just a minus sign as arg,\n\ | |
656 | or a list whose car is a number for just one or more C-U's\n\ | |
657 | or nil if no argument has been specified.\n\ | |
658 | This is what `(interactive \"P\")' returns."); | |
659 | Vcurrent_prefix_arg = Qnil; | |
660 | ||
661 | DEFVAR_LISP ("command-history", &Vcommand_history, | |
662 | "List of recent commands that read arguments from terminal.\n\ | |
663 | Each command is represented as a form to evaluate."); | |
664 | Vcommand_history = Qnil; | |
665 | ||
666 | DEFVAR_LISP ("command-debug-status", &Vcommand_debug_status, | |
667 | "Debugging status of current interactive command.\n\ | |
668 | Bound each time `call-interactively' is called;\n\ | |
669 | may be set by the debugger as a reminder for itself."); | |
670 | Vcommand_debug_status = Qnil; | |
671 | ||
2ad6c959 | 672 | DEFVAR_LISP ("mark-even-if-inactive", &Vmark_even_if_inactive, |
9f315aeb RS |
673 | "*Non-nil means you can use the mark even when inactive.\n\ |
674 | This option makes a difference in Transient Mark mode.\n\ | |
675 | When the option is non-nil, deactivation of the mark\n\ | |
676 | turns off region highlighting, but commands that use the mark\n\ | |
677 | behave as if the mark were still active."); | |
678 | Vmark_even_if_inactive = Qnil; | |
679 | ||
ec28a64d MB |
680 | defsubr (&Sinteractive); |
681 | defsubr (&Scall_interactively); | |
682 | defsubr (&Sprefix_numeric_value); | |
683 | } |