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\ | |
164 | The function contains a specification of how to do the argument reading.\n\ | |
165 | In the case of user-defined functions, this is specified by placing a call\n\ | |
166 | to the function `interactive' at the top level of the function body.\n\ | |
167 | See `interactive'.\n\ | |
168 | \n\ | |
169 | Optional second arg RECORD-FLAG non-nil\n\ | |
170 | means unconditionally put this command in the command-history.\n\ | |
171 | Otherwise, this is done only if an arg is read using the minibuffer.") | |
172 | (function, record) | |
173 | Lisp_Object function, record; | |
174 | { | |
175 | Lisp_Object *args, *visargs; | |
176 | unsigned char **argstrings; | |
177 | Lisp_Object fun; | |
178 | Lisp_Object funcar; | |
179 | Lisp_Object specs; | |
180 | Lisp_Object teml; | |
52614803 RS |
181 | Lisp_Object enable; |
182 | int speccount = specpdl_ptr - specpdl; | |
ec28a64d | 183 | |
bc78232c JB |
184 | /* The index of the next element of this_command_keys to examine for |
185 | the 'e' interactive code. */ | |
dbc4e1c1 | 186 | int next_event; |
bc78232c | 187 | |
ec28a64d MB |
188 | Lisp_Object prefix_arg; |
189 | unsigned char *string; | |
190 | unsigned char *tem; | |
63007de2 JB |
191 | |
192 | /* If varies[i] > 0, the i'th argument shouldn't just have its value | |
193 | in this call quoted in the command history. It should be | |
194 | recorded as a call to the function named callint_argfuns[varies[i]]. */ | |
ec28a64d | 195 | int *varies; |
63007de2 | 196 | |
ec28a64d MB |
197 | register int i, j; |
198 | int count, foo; | |
199 | char prompt[100]; | |
200 | char prompt1[100]; | |
201 | char *tem1; | |
202 | int arg_from_tty = 0; | |
203 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
204 | ||
e5d77022 | 205 | /* Save this now, since use of minibuffer will clobber it. */ |
8c917bf2 | 206 | prefix_arg = Vcurrent_prefix_arg; |
ec28a64d | 207 | |
46947372 | 208 | retry: |
ec28a64d | 209 | |
6e54b3de | 210 | if (SYMBOLP (function)) |
afa4c0f3 | 211 | enable = Fget (function, Qenable_recursive_minibuffers); |
52614803 | 212 | |
ffd56f97 | 213 | fun = indirect_function (function); |
ec28a64d MB |
214 | |
215 | specs = Qnil; | |
216 | string = 0; | |
217 | ||
218 | /* Decode the kind of function. Either handle it and return, | |
219 | or go to `lose' if not interactive, or go to `retry' | |
220 | to specify a different function, or set either STRING or SPECS. */ | |
221 | ||
6e54b3de | 222 | if (SUBRP (fun)) |
ec28a64d MB |
223 | { |
224 | string = (unsigned char *) XSUBR (fun)->prompt; | |
225 | if (!string) | |
226 | { | |
227 | lose: | |
b37902c8 | 228 | function = wrong_type_argument (Qcommandp, function); |
ec28a64d MB |
229 | goto retry; |
230 | } | |
132b9337 | 231 | if ((EMACS_INT) string == 1) |
ec28a64d MB |
232 | /* Let SPECS (which is nil) be used as the args. */ |
233 | string = 0; | |
234 | } | |
6e54b3de | 235 | else if (COMPILEDP (fun)) |
ec28a64d | 236 | { |
f9b4aacf | 237 | if ((XVECTOR (fun)->size & PSEUDOVECTOR_SIZE_MASK) <= COMPILED_INTERACTIVE) |
ec28a64d MB |
238 | goto lose; |
239 | specs = XVECTOR (fun)->contents[COMPILED_INTERACTIVE]; | |
240 | } | |
241 | else if (!CONSP (fun)) | |
242 | goto lose; | |
243 | else if (funcar = Fcar (fun), EQ (funcar, Qautoload)) | |
244 | { | |
245 | GCPRO2 (function, prefix_arg); | |
246 | do_autoload (fun, function); | |
247 | UNGCPRO; | |
248 | goto retry; | |
249 | } | |
250 | else if (EQ (funcar, Qlambda)) | |
251 | { | |
252 | specs = Fassq (Qinteractive, Fcdr (Fcdr (fun))); | |
265a9e55 | 253 | if (NILP (specs)) |
ec28a64d MB |
254 | goto lose; |
255 | specs = Fcar (Fcdr (specs)); | |
256 | } | |
257 | else if (EQ (funcar, Qmocklisp)) | |
887e0cba | 258 | { |
652e2240 | 259 | single_kboard_state (); |
887e0cba KH |
260 | return ml_apply (fun, Qinteractive); |
261 | } | |
ec28a64d MB |
262 | else |
263 | goto lose; | |
264 | ||
46947372 | 265 | /* If either specs or string is set to a string, use it. */ |
6e54b3de | 266 | if (STRINGP (specs)) |
46947372 JB |
267 | { |
268 | /* Make a copy of string so that if a GC relocates specs, | |
269 | `string' will still be valid. */ | |
e5d77022 | 270 | string = (unsigned char *) alloca (XSTRING (specs)->size + 1); |
46947372 JB |
271 | bcopy (XSTRING (specs)->data, string, XSTRING (specs)->size + 1); |
272 | } | |
ec28a64d MB |
273 | else if (string == 0) |
274 | { | |
03e130d5 | 275 | Lisp_Object input; |
ec28a64d | 276 | i = num_input_chars; |
03e130d5 RS |
277 | input = specs; |
278 | /* Compute the arg values using the user's expression. */ | |
ec28a64d | 279 | specs = Feval (specs); |
265a9e55 | 280 | if (i != num_input_chars || !NILP (record)) |
03e130d5 RS |
281 | { |
282 | /* We should record this command on the command history. */ | |
283 | Lisp_Object values, car; | |
284 | /* Make a copy of the list of values, for the command history, | |
285 | and turn them into things we can eval. */ | |
286 | values = quotify_args (Fcopy_sequence (specs)); | |
287 | /* If the list of args was produced with an explicit call to `list', | |
288 | look for elements that were computed with (region-beginning) | |
289 | or (region-end), and put those expressions into VALUES | |
290 | instead of the present values. */ | |
291 | car = Fcar (input); | |
292 | if (EQ (car, Qlist)) | |
293 | { | |
294 | Lisp_Object intail, valtail; | |
295 | for (intail = Fcdr (input), valtail = values; | |
296 | CONSP (valtail); | |
297 | intail = Fcdr (intail), valtail = Fcdr (valtail)) | |
298 | { | |
299 | Lisp_Object elt; | |
300 | elt = Fcar (intail); | |
301 | if (CONSP (elt)) | |
302 | { | |
303 | Lisp_Object presflag; | |
304 | presflag = Fmemq (Fcar (elt), preserved_fns); | |
305 | if (!NILP (presflag)) | |
306 | Fsetcar (valtail, Fcar (intail)); | |
307 | } | |
308 | } | |
309 | } | |
310 | Vcommand_history | |
311 | = Fcons (Fcons (function, values), Vcommand_history); | |
312 | } | |
652e2240 | 313 | single_kboard_state (); |
ec28a64d MB |
314 | return apply1 (function, specs); |
315 | } | |
316 | ||
317 | /* Here if function specifies a string to control parsing the defaults */ | |
318 | ||
dbc4e1c1 JB |
319 | /* Set next_event to point to the first event with parameters. */ |
320 | for (next_event = 0; next_event < this_command_key_count; next_event++) | |
321 | if (EVENT_HAS_PARAMETERS | |
322 | (XVECTOR (this_command_keys)->contents[next_event])) | |
323 | break; | |
324 | ||
42bb2790 | 325 | /* Handle special starting chars `*' and `@'. Also `-'. */ |
e92d107b | 326 | /* Note that `+' is reserved for user extensions. */ |
ec28a64d MB |
327 | while (1) |
328 | { | |
fb775602 | 329 | if (*string == '+') |
e92d107b RS |
330 | error ("`+' is not used in `interactive' for ordinary commands"); |
331 | else if (*string == '*') | |
ec28a64d MB |
332 | { |
333 | string++; | |
265a9e55 | 334 | if (!NILP (current_buffer->read_only)) |
ec28a64d MB |
335 | Fbarf_if_buffer_read_only (); |
336 | } | |
42bb2790 RS |
337 | /* Ignore this for semi-compatibility with Lucid. */ |
338 | else if (*string == '-') | |
339 | string++; | |
ec28a64d MB |
340 | else if (*string == '@') |
341 | { | |
86c1cf23 | 342 | Lisp_Object event; |
dbc4e1c1 | 343 | |
86c1cf23 | 344 | event = XVECTOR (this_command_keys)->contents[next_event]; |
dbc4e1c1 | 345 | if (EVENT_HAS_PARAMETERS (event) |
21ba0e68 | 346 | && (event = XCONS (event)->cdr, CONSP (event)) |
6e54b3de | 347 | && (event = XCONS (event)->car, CONSP (event)) |
a6d1245e | 348 | && (event = XCONS (event)->car, WINDOWP (event))) |
d1fa2e8a | 349 | { |
d68807fc | 350 | if (MINI_WINDOW_P (XWINDOW (event)) |
42bb2790 | 351 | && ! (minibuf_level > 0 && EQ (event, minibuf_window))) |
d1fa2e8a | 352 | error ("Attempt to select inactive minibuffer window"); |
ef2515c0 RS |
353 | |
354 | /* If the current buffer wants to clean up, let it. */ | |
355 | if (!NILP (Vmouse_leave_buffer_hook)) | |
356 | call1 (Vrun_hooks, Qmouse_leave_buffer_hook); | |
357 | ||
d1fa2e8a KH |
358 | Fselect_window (event); |
359 | } | |
ec28a64d | 360 | string++; |
ec28a64d MB |
361 | } |
362 | else break; | |
363 | } | |
364 | ||
365 | /* Count the number of arguments the interactive spec would have | |
366 | us give to the function. */ | |
367 | tem = string; | |
368 | for (j = 0; *tem; j++) | |
369 | { | |
370 | /* 'r' specifications ("point and mark as 2 numeric args") | |
371 | produce *two* arguments. */ | |
372 | if (*tem == 'r') j++; | |
373 | tem = (unsigned char *) index (tem, '\n'); | |
374 | if (tem) | |
375 | tem++; | |
376 | else | |
377 | tem = (unsigned char *) ""; | |
378 | } | |
379 | count = j; | |
380 | ||
381 | args = (Lisp_Object *) alloca ((count + 1) * sizeof (Lisp_Object)); | |
382 | visargs = (Lisp_Object *) alloca ((count + 1) * sizeof (Lisp_Object)); | |
383 | argstrings = (unsigned char **) alloca ((count + 1) * sizeof (char *)); | |
384 | varies = (int *) alloca ((count + 1) * sizeof (int)); | |
385 | ||
386 | for (i = 0; i < (count + 1); i++) | |
387 | { | |
388 | args[i] = Qnil; | |
389 | visargs[i] = Qnil; | |
390 | varies[i] = 0; | |
391 | } | |
392 | ||
393 | GCPRO4 (prefix_arg, function, *args, *visargs); | |
394 | gcpro3.nvars = (count + 1); | |
395 | gcpro4.nvars = (count + 1); | |
396 | ||
52614803 RS |
397 | if (!NILP (enable)) |
398 | specbind (Qenable_recursive_minibuffers, Qt); | |
399 | ||
ec28a64d | 400 | tem = string; |
46947372 | 401 | for (i = 1; *tem; i++) |
ec28a64d MB |
402 | { |
403 | strncpy (prompt1, tem + 1, sizeof prompt1 - 1); | |
404 | prompt1[sizeof prompt1 - 1] = 0; | |
405 | tem1 = index (prompt1, '\n'); | |
406 | if (tem1) *tem1 = 0; | |
407 | /* Fill argstrings with a vector of C strings | |
408 | corresponding to the Lisp strings in visargs. */ | |
409 | for (j = 1; j < i; j++) | |
410 | argstrings[j] | |
411 | = EQ (visargs[j], Qnil) | |
412 | ? (unsigned char *) "" | |
46947372 | 413 | : XSTRING (visargs[j])->data; |
ec28a64d | 414 | |
cc04c679 KH |
415 | doprnt (prompt, sizeof prompt, prompt1, (char *)0, |
416 | j - 1, argstrings + 1); | |
ec28a64d MB |
417 | |
418 | switch (*tem) | |
419 | { | |
420 | case 'a': /* Symbol defined as a function */ | |
421 | visargs[i] = Fcompleting_read (build_string (prompt), | |
422 | Vobarray, Qfboundp, Qt, Qnil, Qnil); | |
423 | /* Passing args[i] directly stimulates compiler bug */ | |
424 | teml = visargs[i]; | |
425 | args[i] = Fintern (teml, Qnil); | |
426 | break; | |
427 | ||
428 | case 'b': /* Name of existing buffer */ | |
429 | args[i] = Fcurrent_buffer (); | |
430 | if (EQ (selected_window, minibuf_window)) | |
9262fcb6 | 431 | args[i] = Fother_buffer (args[i], Qnil); |
ec28a64d MB |
432 | args[i] = Fread_buffer (build_string (prompt), args[i], Qt); |
433 | break; | |
434 | ||
435 | case 'B': /* Name of buffer, possibly nonexistent */ | |
436 | args[i] = Fread_buffer (build_string (prompt), | |
9262fcb6 RS |
437 | Fother_buffer (Fcurrent_buffer (), Qnil), |
438 | Qnil); | |
ec28a64d MB |
439 | break; |
440 | ||
441 | case 'c': /* Character */ | |
442 | message1 (prompt); | |
443 | args[i] = Fread_char (); | |
444 | /* Passing args[i] directly stimulates compiler bug */ | |
445 | teml = args[i]; | |
446 | visargs[i] = Fchar_to_string (teml); | |
447 | break; | |
448 | ||
449 | case 'C': /* Command: symbol with interactive function */ | |
450 | visargs[i] = Fcompleting_read (build_string (prompt), | |
451 | Vobarray, Qcommandp, Qt, Qnil, Qnil); | |
452 | /* Passing args[i] directly stimulates compiler bug */ | |
453 | teml = visargs[i]; | |
454 | args[i] = Fintern (teml, Qnil); | |
455 | break; | |
456 | ||
457 | case 'd': /* Value of point. Does not do I/O. */ | |
824977b6 RS |
458 | Fset_marker (point_marker, make_number (PT), Qnil); |
459 | args[i] = point_marker; | |
ec28a64d MB |
460 | /* visargs[i] = Qnil; */ |
461 | varies[i] = 1; | |
462 | break; | |
463 | ||
ec28a64d MB |
464 | case 'D': /* Directory name. */ |
465 | args[i] = Fread_file_name (build_string (prompt), Qnil, | |
466 | current_buffer->directory, Qlambda, Qnil); | |
467 | break; | |
468 | ||
469 | case 'f': /* Existing file name. */ | |
470 | args[i] = Fread_file_name (build_string (prompt), | |
471 | Qnil, Qnil, Qlambda, Qnil); | |
472 | break; | |
473 | ||
474 | case 'F': /* Possibly nonexistent file name. */ | |
475 | args[i] = Fread_file_name (build_string (prompt), | |
476 | Qnil, Qnil, Qnil, Qnil); | |
477 | break; | |
478 | ||
1989e7bc | 479 | case 'k': /* Key sequence. */ |
44820cc3 | 480 | args[i] = Fread_key_sequence (build_string (prompt), Qnil, Qnil, Qnil); |
1989e7bc RS |
481 | teml = args[i]; |
482 | visargs[i] = Fkey_description (teml); | |
483 | break; | |
484 | ||
485 | case 'K': /* Key sequence to be defined. */ | |
44820cc3 | 486 | args[i] = Fread_key_sequence (build_string (prompt), Qnil, Qt, Qnil); |
ec28a64d MB |
487 | teml = args[i]; |
488 | visargs[i] = Fkey_description (teml); | |
489 | break; | |
490 | ||
bc78232c | 491 | case 'e': /* The invoking event. */ |
bc78232c JB |
492 | if (next_event >= this_command_key_count) |
493 | error ("%s must be bound to an event with parameters", | |
6e54b3de | 494 | (SYMBOLP (function) |
63007de2 | 495 | ? (char *) XSYMBOL (function)->name->data |
bc78232c | 496 | : "command")); |
7e6491d3 | 497 | args[i] = XVECTOR (this_command_keys)->contents[next_event++]; |
e5d77022 | 498 | varies[i] = -1; |
dbc4e1c1 JB |
499 | |
500 | /* Find the next parameterized event. */ | |
501 | while (next_event < this_command_key_count | |
502 | && ! (EVENT_HAS_PARAMETERS | |
503 | (XVECTOR (this_command_keys)->contents[next_event]))) | |
504 | next_event++; | |
505 | ||
63007de2 JB |
506 | break; |
507 | ||
ec28a64d MB |
508 | case 'm': /* Value of mark. Does not do I/O. */ |
509 | check_mark (); | |
510 | /* visargs[i] = Qnil; */ | |
824977b6 | 511 | args[i] = current_buffer->mark; |
ec28a64d MB |
512 | varies[i] = 2; |
513 | break; | |
514 | ||
515 | case 'N': /* Prefix arg, else number from minibuffer */ | |
265a9e55 | 516 | if (!NILP (prefix_arg)) |
ec28a64d MB |
517 | goto have_prefix_arg; |
518 | case 'n': /* Read number from minibuffer. */ | |
519 | do | |
520 | args[i] = Fread_minibuffer (build_string (prompt), Qnil); | |
4746118a | 521 | while (! NUMBERP (args[i])); |
ec28a64d MB |
522 | visargs[i] = last_minibuf_string; |
523 | break; | |
524 | ||
525 | case 'P': /* Prefix arg in raw form. Does no I/O. */ | |
526 | have_prefix_arg: | |
527 | args[i] = prefix_arg; | |
528 | /* visargs[i] = Qnil; */ | |
529 | varies[i] = -1; | |
530 | break; | |
531 | ||
532 | case 'p': /* Prefix arg converted to number. No I/O. */ | |
533 | args[i] = Fprefix_numeric_value (prefix_arg); | |
534 | /* visargs[i] = Qnil; */ | |
535 | varies[i] = -1; | |
536 | break; | |
537 | ||
538 | case 'r': /* Region, point and mark as 2 args. */ | |
539 | check_mark (); | |
824977b6 | 540 | Fset_marker (point_marker, make_number (PT), Qnil); |
ec28a64d MB |
541 | /* visargs[i+1] = Qnil; */ |
542 | foo = marker_position (current_buffer->mark); | |
543 | /* visargs[i] = Qnil; */ | |
824977b6 | 544 | args[i] = point < foo ? point_marker : current_buffer->mark; |
ec28a64d | 545 | varies[i] = 3; |
824977b6 | 546 | args[++i] = point > foo ? point_marker : current_buffer->mark; |
ec28a64d MB |
547 | varies[i] = 4; |
548 | break; | |
549 | ||
550 | case 's': /* String read via minibuffer. */ | |
80896ab4 | 551 | args[i] = Fread_string (build_string (prompt), Qnil, Qnil); |
ec28a64d MB |
552 | break; |
553 | ||
554 | case 'S': /* Any symbol. */ | |
80896ab4 | 555 | visargs[i] = Fread_string (build_string (prompt), Qnil, Qnil); |
ec28a64d MB |
556 | /* Passing args[i] directly stimulates compiler bug */ |
557 | teml = visargs[i]; | |
558 | args[i] = Fintern (teml, Qnil); | |
559 | break; | |
560 | ||
561 | case 'v': /* Variable name: symbol that is | |
562 | user-variable-p. */ | |
563 | args[i] = Fread_variable (build_string (prompt)); | |
564 | visargs[i] = last_minibuf_string; | |
565 | break; | |
566 | ||
567 | case 'x': /* Lisp expression read but not evaluated */ | |
568 | args[i] = Fread_minibuffer (build_string (prompt), Qnil); | |
569 | visargs[i] = last_minibuf_string; | |
570 | break; | |
571 | ||
572 | case 'X': /* Lisp expression read and evaluated */ | |
573 | args[i] = Feval_minibuffer (build_string (prompt), Qnil); | |
574 | visargs[i] = last_minibuf_string; | |
575 | break; | |
576 | ||
e92d107b RS |
577 | /* We have a case for `+' so we get an error |
578 | if anyone tries to define one here. */ | |
579 | case '+': | |
ec28a64d | 580 | default: |
e92d107b | 581 | error ("Invalid control letter `%c' (%03o) in interactive calling string", |
ec28a64d MB |
582 | *tem, *tem); |
583 | } | |
584 | ||
585 | if (varies[i] == 0) | |
586 | arg_from_tty = 1; | |
587 | ||
6e54b3de | 588 | if (NILP (visargs[i]) && STRINGP (args[i])) |
ec28a64d MB |
589 | visargs[i] = args[i]; |
590 | ||
591 | tem = (unsigned char *) index (tem, '\n'); | |
592 | if (tem) tem++; | |
593 | else tem = (unsigned char *) ""; | |
594 | } | |
52614803 | 595 | unbind_to (speccount, Qnil); |
ec28a64d MB |
596 | |
597 | QUIT; | |
598 | ||
599 | args[0] = function; | |
600 | ||
265a9e55 | 601 | if (arg_from_tty || !NILP (record)) |
ec28a64d MB |
602 | { |
603 | visargs[0] = function; | |
63007de2 | 604 | for (i = 1; i < count + 1; i++) |
824977b6 RS |
605 | { |
606 | if (varies[i] > 0) | |
607 | visargs[i] = Fcons (intern (callint_argfuns[varies[i]]), Qnil); | |
608 | else | |
609 | visargs[i] = quotify_arg (args[i]); | |
610 | } | |
ec28a64d MB |
611 | Vcommand_history = Fcons (Flist (count + 1, visargs), |
612 | Vcommand_history); | |
613 | } | |
614 | ||
824977b6 RS |
615 | /* If we used a marker to hold point, mark, or an end of the region, |
616 | temporarily, convert it to an integer now. */ | |
f4c8ded2 | 617 | for (i = 1; i <= count; i++) |
824977b6 RS |
618 | if (varies[i] >= 1 && varies[i] <= 4) |
619 | XSETINT (args[i], marker_position (args[i])); | |
620 | ||
652e2240 | 621 | single_kboard_state (); |
ebfbe249 | 622 | |
ec28a64d MB |
623 | { |
624 | Lisp_Object val; | |
ec28a64d MB |
625 | specbind (Qcommand_debug_status, Qnil); |
626 | ||
627 | val = Ffuncall (count + 1, args); | |
628 | UNGCPRO; | |
629 | return unbind_to (speccount, val); | |
630 | } | |
631 | } | |
632 | ||
633 | DEFUN ("prefix-numeric-value", Fprefix_numeric_value, Sprefix_numeric_value, | |
634 | 1, 1, 0, | |
635 | "Return numeric meaning of raw prefix argument ARG.\n\ | |
636 | A raw prefix argument is what you get from `(interactive \"P\")'.\n\ | |
637 | Its numeric meaning is what you would get from `(interactive \"p\")'.") | |
638 | (raw) | |
639 | Lisp_Object raw; | |
640 | { | |
641 | Lisp_Object val; | |
642 | ||
265a9e55 | 643 | if (NILP (raw)) |
acab6442 | 644 | XSETFASTINT (val, 1); |
fd5285f3 | 645 | else if (EQ (raw, Qminus)) |
ec28a64d MB |
646 | XSETINT (val, -1); |
647 | else if (CONSP (raw)) | |
648 | XSETINT (val, XINT (XCONS (raw)->car)); | |
6e54b3de | 649 | else if (INTEGERP (raw)) |
ec28a64d MB |
650 | val = raw; |
651 | else | |
acab6442 | 652 | XSETFASTINT (val, 1); |
ec28a64d MB |
653 | |
654 | return val; | |
655 | } | |
656 | ||
657 | syms_of_callint () | |
658 | { | |
824977b6 RS |
659 | point_marker = Fmake_marker (); |
660 | staticpro (&point_marker); | |
661 | ||
03e130d5 RS |
662 | preserved_fns = Fcons (intern ("region-beginning"), |
663 | Fcons (intern ("region-end"), | |
664 | Fcons (intern ("point"), | |
665 | Fcons (intern ("mark"), Qnil)))); | |
666 | staticpro (&preserved_fns); | |
667 | ||
668 | Qlist = intern ("list"); | |
669 | staticpro (&Qlist); | |
670 | ||
ec28a64d MB |
671 | Qminus = intern ("-"); |
672 | staticpro (&Qminus); | |
673 | ||
fdb4a38c RS |
674 | Qplus = intern ("+"); |
675 | staticpro (&Qplus); | |
676 | ||
ec28a64d MB |
677 | Qcall_interactively = intern ("call-interactively"); |
678 | staticpro (&Qcall_interactively); | |
679 | ||
680 | Qcommand_debug_status = intern ("command-debug-status"); | |
681 | staticpro (&Qcommand_debug_status); | |
682 | ||
52614803 RS |
683 | Qenable_recursive_minibuffers = intern ("enable-recursive-minibuffers"); |
684 | staticpro (&Qenable_recursive_minibuffers); | |
685 | ||
ef2515c0 RS |
686 | Qmouse_leave_buffer_hook = intern ("mouse-leave-buffer-hook"); |
687 | staticpro (&Qmouse_leave_buffer_hook); | |
688 | ||
1e0c5826 | 689 | DEFVAR_KBOARD ("prefix-arg", Vprefix_arg, |
8c917bf2 KH |
690 | "The value of the prefix argument for the next editing command.\n\ |
691 | It may be a number, or the symbol `-' for just a minus sign as arg,\n\ | |
692 | or a list whose car is a number for just one or more C-U's\n\ | |
693 | or nil if no argument has been specified.\n\ | |
694 | \n\ | |
695 | You cannot examine this variable to find the argument for this command\n\ | |
696 | since it has been set to nil by the time you can look.\n\ | |
697 | Instead, you should use the variable `current-prefix-arg', although\n\ | |
698 | normally commands can get this prefix argument with (interactive \"P\")."); | |
8c917bf2 KH |
699 | |
700 | DEFVAR_LISP ("current-prefix-arg", &Vcurrent_prefix_arg, | |
701 | "The value of the prefix argument for this editing command.\n\ | |
702 | It may be a number, or the symbol `-' for just a minus sign as arg,\n\ | |
703 | or a list whose car is a number for just one or more C-U's\n\ | |
704 | or nil if no argument has been specified.\n\ | |
705 | This is what `(interactive \"P\")' returns."); | |
706 | Vcurrent_prefix_arg = Qnil; | |
707 | ||
ec28a64d MB |
708 | DEFVAR_LISP ("command-history", &Vcommand_history, |
709 | "List of recent commands that read arguments from terminal.\n\ | |
710 | Each command is represented as a form to evaluate."); | |
711 | Vcommand_history = Qnil; | |
712 | ||
713 | DEFVAR_LISP ("command-debug-status", &Vcommand_debug_status, | |
714 | "Debugging status of current interactive command.\n\ | |
715 | Bound each time `call-interactively' is called;\n\ | |
716 | may be set by the debugger as a reminder for itself."); | |
717 | Vcommand_debug_status = Qnil; | |
718 | ||
2ad6c959 | 719 | DEFVAR_LISP ("mark-even-if-inactive", &Vmark_even_if_inactive, |
9f315aeb RS |
720 | "*Non-nil means you can use the mark even when inactive.\n\ |
721 | This option makes a difference in Transient Mark mode.\n\ | |
722 | When the option is non-nil, deactivation of the mark\n\ | |
723 | turns off region highlighting, but commands that use the mark\n\ | |
724 | behave as if the mark were still active."); | |
725 | Vmark_even_if_inactive = Qnil; | |
726 | ||
ef2515c0 RS |
727 | DEFVAR_LISP ("mouse-leave-buffer-hook", &Vmouse_leave_buffer_hook, |
728 | "Hook to run when about to switch windows with a mouse command.\n\ | |
729 | Its purpose is to give temporary modes such as Isearch mode\n\ | |
730 | a way to turn themselves off when a mouse command switches windows."); | |
731 | Vmouse_leave_buffer_hook = Qnil; | |
732 | ||
ec28a64d MB |
733 | defsubr (&Sinteractive); |
734 | defsubr (&Scall_interactively); | |
735 | defsubr (&Sprefix_numeric_value); | |
736 | } |