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 | |
3b7ad313 EN |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
ec28a64d MB |
20 | |
21 | ||
18160b98 | 22 | #include <config.h> |
ec28a64d MB |
23 | #include "lisp.h" |
24 | #include "buffer.h" | |
25 | #include "commands.h" | |
760cbdd3 | 26 | #include "keyboard.h" |
ec28a64d MB |
27 | #include "window.h" |
28 | #include "mocklisp.h" | |
29 | ||
30 | extern char *index (); | |
31 | ||
c631c234 RS |
32 | extern Lisp_Object Qcursor_in_echo_area; |
33 | ||
1e0c5826 | 34 | Lisp_Object Vcurrent_prefix_arg, Qminus, Qplus; |
ec28a64d MB |
35 | Lisp_Object Qcall_interactively; |
36 | Lisp_Object Vcommand_history; | |
37 | ||
38 | Lisp_Object Vcommand_debug_status, Qcommand_debug_status; | |
52614803 | 39 | Lisp_Object Qenable_recursive_minibuffers; |
ec28a64d | 40 | |
9f315aeb RS |
41 | /* Non-nil means treat the mark as active |
42 | even if mark_active is 0. */ | |
43 | Lisp_Object Vmark_even_if_inactive; | |
44 | ||
ef2515c0 RS |
45 | Lisp_Object Vmouse_leave_buffer_hook, Qmouse_leave_buffer_hook; |
46 | ||
8450690a | 47 | Lisp_Object Qlist, Qlet, Qletx, Qsave_excursion; |
824977b6 RS |
48 | static Lisp_Object preserved_fns; |
49 | ||
50 | /* Marker used within call-interactively to refer to point. */ | |
51 | static Lisp_Object point_marker; | |
03e130d5 | 52 | |
df31bc64 RS |
53 | /* Buffer for the prompt text used in Fcall_interactively. */ |
54 | static char *callint_message; | |
55 | ||
56 | /* Allocated length of that buffer. */ | |
57 | static int callint_message_size; | |
1cf9cfc6 | 58 | |
ec28a64d MB |
59 | /* This comment supplies the doc string for interactive, |
60 | for make-docfile to see. We cannot put this in the real DEFUN | |
61 | due to limits in the Unix cpp. | |
62 | ||
63 | DEFUN ("interactive", Ffoo, Sfoo, 0, 0, 0, | |
64 | "Specify a way of parsing arguments for interactive use of a function.\n\ | |
65 | For example, write\n\ | |
66 | (defun foo (arg) \"Doc string\" (interactive \"p\") ...use arg...)\n\ | |
67 | to make ARG be the prefix argument when `foo' is called as a command.\n\ | |
68 | The \"call\" to `interactive' is actually a declaration rather than a function;\n\ | |
69 | it tells `call-interactively' how to read arguments\n\ | |
70 | to pass to the function.\n\ | |
71 | When actually called, `interactive' just returns nil.\n\ | |
72 | \n\ | |
73 | The argument of `interactive' is usually a string containing a code letter\n\ | |
74 | followed by a prompt. (Some code letters do not use I/O to get\n\ | |
75 | the argument and do not need prompts.) To prompt for multiple arguments,\n\ | |
76 | give a code letter, its prompt, a newline, and another code letter, etc.\n\ | |
77 | Prompts are passed to format, and may use % escapes to print the\n\ | |
78 | arguments that have already been read.\n\ | |
79 | If the argument is not a string, it is evaluated to get a list of\n\ | |
80 | arguments to pass to the function.\n\ | |
81 | Just `(interactive)' means pass no args when calling interactively.\n\ | |
82 | \nCode letters available are:\n\ | |
83 | a -- Function name: symbol with a function definition.\n\ | |
84 | b -- Name of existing buffer.\n\ | |
85 | B -- Name of buffer, possibly nonexistent.\n\ | |
86 | c -- Character.\n\ | |
87 | C -- Command name: symbol with interactive function definition.\n\ | |
88 | d -- Value of point as number. Does not do I/O.\n\ | |
89 | D -- Directory name.\n\ | |
4d1f43c0 RS |
90 | e -- Parametrized event (i.e., one that's a list) that invoked this command.\n\ |
91 | If used more than once, the Nth `e' returns the Nth parameterized event.\n\ | |
92 | This skips events that are integers or symbols.\n\ | |
ec28a64d MB |
93 | f -- Existing file name.\n\ |
94 | F -- Possibly nonexistent file name.\n\ | |
40b2421c | 95 | i -- Ignored, i.e. always nil. Does not do I/O.\n\ |
b631003b RS |
96 | k -- Key sequence (downcase the last event if needed to get a definition).\n\ |
97 | K -- Key sequence to be redefined (do not downcase the last event).\n\ | |
ec28a64d MB |
98 | m -- Value of mark as number. Does not do I/O.\n\ |
99 | n -- Number read using minibuffer.\n\ | |
701ca6c0 | 100 | N -- Raw prefix arg, or if none, do like code `n'.\n\ |
ec28a64d MB |
101 | p -- Prefix arg converted to number. Does not do I/O.\n\ |
102 | P -- Prefix arg in raw form. Does not do I/O.\n\ | |
103 | r -- Region: point and mark as 2 numeric args, smallest first. Does no I/O.\n\ | |
104 | s -- Any string.\n\ | |
105 | S -- Any symbol.\n\ | |
106 | v -- Variable name: symbol that is user-variable-p.\n\ | |
107 | x -- Lisp expression read but not evaluated.\n\ | |
108 | X -- Lisp expression read and evaluated.\n\ | |
40b2421c KH |
109 | z -- Coding system.\n\ |
110 | Z -- Coding system, nil if no prefix arg.\n\ | |
ec28a64d MB |
111 | In addition, if the string begins with `*'\n\ |
112 | then an error is signaled if the buffer is read-only.\n\ | |
113 | This happens before reading any arguments.\n\ | |
dbc4e1c1 JB |
114 | If the string begins with `@', then Emacs searches the key sequence\n\ |
115 | which invoked the command for its first mouse click (or any other\n\ | |
116 | event which specifies a window), and selects that window before\n\ | |
117 | reading any arguments. You may use both `@' and `*'; they are\n\ | |
118 | processed in the order that they appear." */ | |
ec28a64d MB |
119 | |
120 | /* ARGSUSED */ | |
121 | DEFUN ("interactive", Finteractive, Sinteractive, 0, UNEVALLED, 0, | |
122 | 0 /* See immediately above */) | |
123 | (args) | |
124 | Lisp_Object args; | |
125 | { | |
126 | return Qnil; | |
127 | } | |
128 | ||
129 | /* Quotify EXP: if EXP is constant, return it. | |
130 | If EXP is not constant, return (quote EXP). */ | |
131 | Lisp_Object | |
132 | quotify_arg (exp) | |
133 | register Lisp_Object exp; | |
134 | { | |
6e54b3de | 135 | if (!INTEGERP (exp) && !STRINGP (exp) |
265a9e55 | 136 | && !NILP (exp) && !EQ (exp, Qt)) |
ec28a64d MB |
137 | return Fcons (Qquote, Fcons (exp, Qnil)); |
138 | ||
139 | return exp; | |
140 | } | |
141 | ||
142 | /* Modify EXP by quotifying each element (except the first). */ | |
143 | Lisp_Object | |
144 | quotify_args (exp) | |
145 | Lisp_Object exp; | |
146 | { | |
147 | register Lisp_Object tail; | |
148 | register struct Lisp_Cons *ptr; | |
149 | for (tail = exp; CONSP (tail); tail = ptr->cdr) | |
150 | { | |
151 | ptr = XCONS (tail); | |
152 | ptr->car = quotify_arg (ptr->car); | |
153 | } | |
154 | return exp; | |
155 | } | |
156 | ||
157 | char *callint_argfuns[] | |
158 | = {"", "point", "mark", "region-beginning", "region-end"}; | |
159 | ||
160 | static void | |
161 | check_mark () | |
162 | { | |
86c1cf23 KH |
163 | Lisp_Object tem; |
164 | tem = Fmarker_buffer (current_buffer->mark); | |
265a9e55 | 165 | if (NILP (tem) || (XBUFFER (tem) != current_buffer)) |
ec28a64d | 166 | error ("The mark is not set now"); |
6497d2d8 RM |
167 | if (!NILP (Vtransient_mark_mode) && NILP (Vmark_even_if_inactive) |
168 | && NILP (current_buffer->mark_active)) | |
169 | Fsignal (Qmark_inactive, Qnil); | |
ec28a64d MB |
170 | } |
171 | ||
172 | ||
d455db8e | 173 | DEFUN ("call-interactively", Fcall_interactively, Scall_interactively, 1, 3, 0, |
ec28a64d | 174 | "Call FUNCTION, reading args according to its interactive calling specs.\n\ |
994662ce | 175 | Return the value FUNCTION returns.\n\ |
ec28a64d MB |
176 | The function contains a specification of how to do the argument reading.\n\ |
177 | In the case of user-defined functions, this is specified by placing a call\n\ | |
178 | to the function `interactive' at the top level of the function body.\n\ | |
179 | See `interactive'.\n\ | |
180 | \n\ | |
181 | Optional second arg RECORD-FLAG non-nil\n\ | |
182 | means unconditionally put this command in the command-history.\n\ | |
6bc1abf2 | 183 | Otherwise, this is done only if an arg is read using the minibuffer.") |
7868a977 EN |
184 | (function, record_flag, keys) |
185 | Lisp_Object function, record_flag, keys; | |
ec28a64d MB |
186 | { |
187 | Lisp_Object *args, *visargs; | |
188 | unsigned char **argstrings; | |
189 | Lisp_Object fun; | |
190 | Lisp_Object funcar; | |
191 | Lisp_Object specs; | |
192 | Lisp_Object teml; | |
52614803 RS |
193 | Lisp_Object enable; |
194 | int speccount = specpdl_ptr - specpdl; | |
ec28a64d | 195 | |
bc78232c JB |
196 | /* The index of the next element of this_command_keys to examine for |
197 | the 'e' interactive code. */ | |
dbc4e1c1 | 198 | int next_event; |
bc78232c | 199 | |
ec28a64d MB |
200 | Lisp_Object prefix_arg; |
201 | unsigned char *string; | |
202 | unsigned char *tem; | |
63007de2 JB |
203 | |
204 | /* If varies[i] > 0, the i'th argument shouldn't just have its value | |
205 | in this call quoted in the command history. It should be | |
206 | recorded as a call to the function named callint_argfuns[varies[i]]. */ | |
ec28a64d | 207 | int *varies; |
63007de2 | 208 | |
ec28a64d MB |
209 | register int i, j; |
210 | int count, foo; | |
ec28a64d MB |
211 | char prompt1[100]; |
212 | char *tem1; | |
213 | int arg_from_tty = 0; | |
214 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
d455db8e RS |
215 | int key_count; |
216 | ||
217 | if (NILP (keys)) | |
218 | keys = this_command_keys, key_count = this_command_key_count; | |
219 | else | |
220 | { | |
221 | CHECK_VECTOR (keys, 3); | |
222 | key_count = XVECTOR (keys)->size; | |
223 | } | |
ec28a64d | 224 | |
e5d77022 | 225 | /* Save this now, since use of minibuffer will clobber it. */ |
8c917bf2 | 226 | prefix_arg = Vcurrent_prefix_arg; |
ec28a64d | 227 | |
46947372 | 228 | retry: |
ec28a64d | 229 | |
6e54b3de | 230 | if (SYMBOLP (function)) |
afa4c0f3 | 231 | enable = Fget (function, Qenable_recursive_minibuffers); |
52614803 | 232 | |
ffd56f97 | 233 | fun = indirect_function (function); |
ec28a64d MB |
234 | |
235 | specs = Qnil; | |
236 | string = 0; | |
237 | ||
238 | /* Decode the kind of function. Either handle it and return, | |
239 | or go to `lose' if not interactive, or go to `retry' | |
240 | to specify a different function, or set either STRING or SPECS. */ | |
241 | ||
6e54b3de | 242 | if (SUBRP (fun)) |
ec28a64d MB |
243 | { |
244 | string = (unsigned char *) XSUBR (fun)->prompt; | |
245 | if (!string) | |
246 | { | |
247 | lose: | |
b37902c8 | 248 | function = wrong_type_argument (Qcommandp, function); |
ec28a64d MB |
249 | goto retry; |
250 | } | |
132b9337 | 251 | if ((EMACS_INT) string == 1) |
ec28a64d MB |
252 | /* Let SPECS (which is nil) be used as the args. */ |
253 | string = 0; | |
254 | } | |
6e54b3de | 255 | else if (COMPILEDP (fun)) |
ec28a64d | 256 | { |
f9b4aacf | 257 | if ((XVECTOR (fun)->size & PSEUDOVECTOR_SIZE_MASK) <= COMPILED_INTERACTIVE) |
ec28a64d MB |
258 | goto lose; |
259 | specs = XVECTOR (fun)->contents[COMPILED_INTERACTIVE]; | |
260 | } | |
261 | else if (!CONSP (fun)) | |
262 | goto lose; | |
263 | else if (funcar = Fcar (fun), EQ (funcar, Qautoload)) | |
264 | { | |
265 | GCPRO2 (function, prefix_arg); | |
266 | do_autoload (fun, function); | |
267 | UNGCPRO; | |
268 | goto retry; | |
269 | } | |
270 | else if (EQ (funcar, Qlambda)) | |
271 | { | |
272 | specs = Fassq (Qinteractive, Fcdr (Fcdr (fun))); | |
265a9e55 | 273 | if (NILP (specs)) |
ec28a64d MB |
274 | goto lose; |
275 | specs = Fcar (Fcdr (specs)); | |
276 | } | |
277 | else if (EQ (funcar, Qmocklisp)) | |
887e0cba | 278 | { |
652e2240 | 279 | single_kboard_state (); |
887e0cba KH |
280 | return ml_apply (fun, Qinteractive); |
281 | } | |
ec28a64d MB |
282 | else |
283 | goto lose; | |
284 | ||
46947372 | 285 | /* If either specs or string is set to a string, use it. */ |
6e54b3de | 286 | if (STRINGP (specs)) |
46947372 JB |
287 | { |
288 | /* Make a copy of string so that if a GC relocates specs, | |
289 | `string' will still be valid. */ | |
e5d77022 | 290 | string = (unsigned char *) alloca (XSTRING (specs)->size + 1); |
46947372 JB |
291 | bcopy (XSTRING (specs)->data, string, XSTRING (specs)->size + 1); |
292 | } | |
ec28a64d MB |
293 | else if (string == 0) |
294 | { | |
03e130d5 | 295 | Lisp_Object input; |
91a6ba78 | 296 | i = num_input_events; |
03e130d5 RS |
297 | input = specs; |
298 | /* Compute the arg values using the user's expression. */ | |
6bc1abf2 | 299 | specs = Feval (specs); |
91a6ba78 | 300 | if (i != num_input_events || !NILP (record_flag)) |
03e130d5 RS |
301 | { |
302 | /* We should record this command on the command history. */ | |
303 | Lisp_Object values, car; | |
304 | /* Make a copy of the list of values, for the command history, | |
305 | and turn them into things we can eval. */ | |
306 | values = quotify_args (Fcopy_sequence (specs)); | |
307 | /* If the list of args was produced with an explicit call to `list', | |
308 | look for elements that were computed with (region-beginning) | |
309 | or (region-end), and put those expressions into VALUES | |
310 | instead of the present values. */ | |
8450690a | 311 | if (CONSP (input)) |
03e130d5 | 312 | { |
8450690a RS |
313 | car = XCONS (input)->car; |
314 | /* Skip through certain special forms. */ | |
315 | while (EQ (car, Qlet) || EQ (car, Qletx) | |
316 | || EQ (car, Qsave_excursion)) | |
03e130d5 | 317 | { |
8450690a RS |
318 | while (CONSP (XCONS (input)->cdr)) |
319 | input = XCONS (input)->cdr; | |
320 | input = XCONS (input)->car; | |
321 | if (!CONSP (input)) | |
322 | break; | |
323 | car = XCONS (input)->car; | |
324 | } | |
325 | if (EQ (car, Qlist)) | |
326 | { | |
327 | Lisp_Object intail, valtail; | |
328 | for (intail = Fcdr (input), valtail = values; | |
329 | CONSP (valtail); | |
330 | intail = Fcdr (intail), valtail = Fcdr (valtail)) | |
03e130d5 | 331 | { |
8450690a RS |
332 | Lisp_Object elt; |
333 | elt = Fcar (intail); | |
334 | if (CONSP (elt)) | |
335 | { | |
336 | Lisp_Object presflag; | |
337 | presflag = Fmemq (Fcar (elt), preserved_fns); | |
338 | if (!NILP (presflag)) | |
339 | Fsetcar (valtail, Fcar (intail)); | |
340 | } | |
03e130d5 RS |
341 | } |
342 | } | |
343 | } | |
344 | Vcommand_history | |
345 | = Fcons (Fcons (function, values), Vcommand_history); | |
346 | } | |
652e2240 | 347 | single_kboard_state (); |
ec28a64d MB |
348 | return apply1 (function, specs); |
349 | } | |
350 | ||
351 | /* Here if function specifies a string to control parsing the defaults */ | |
352 | ||
dbc4e1c1 | 353 | /* Set next_event to point to the first event with parameters. */ |
d455db8e RS |
354 | for (next_event = 0; next_event < key_count; next_event++) |
355 | if (EVENT_HAS_PARAMETERS (XVECTOR (keys)->contents[next_event])) | |
dbc4e1c1 JB |
356 | break; |
357 | ||
42bb2790 | 358 | /* Handle special starting chars `*' and `@'. Also `-'. */ |
e92d107b | 359 | /* Note that `+' is reserved for user extensions. */ |
ec28a64d MB |
360 | while (1) |
361 | { | |
fb775602 | 362 | if (*string == '+') |
e92d107b RS |
363 | error ("`+' is not used in `interactive' for ordinary commands"); |
364 | else if (*string == '*') | |
ec28a64d MB |
365 | { |
366 | string++; | |
265a9e55 | 367 | if (!NILP (current_buffer->read_only)) |
ec28a64d MB |
368 | Fbarf_if_buffer_read_only (); |
369 | } | |
42bb2790 RS |
370 | /* Ignore this for semi-compatibility with Lucid. */ |
371 | else if (*string == '-') | |
372 | string++; | |
ec28a64d MB |
373 | else if (*string == '@') |
374 | { | |
86c1cf23 | 375 | Lisp_Object event; |
dbc4e1c1 | 376 | |
d455db8e | 377 | event = XVECTOR (keys)->contents[next_event]; |
dbc4e1c1 | 378 | if (EVENT_HAS_PARAMETERS (event) |
21ba0e68 | 379 | && (event = XCONS (event)->cdr, CONSP (event)) |
6e54b3de | 380 | && (event = XCONS (event)->car, CONSP (event)) |
a6d1245e | 381 | && (event = XCONS (event)->car, WINDOWP (event))) |
d1fa2e8a | 382 | { |
d68807fc | 383 | if (MINI_WINDOW_P (XWINDOW (event)) |
42bb2790 | 384 | && ! (minibuf_level > 0 && EQ (event, minibuf_window))) |
d1fa2e8a | 385 | error ("Attempt to select inactive minibuffer window"); |
ef2515c0 RS |
386 | |
387 | /* If the current buffer wants to clean up, let it. */ | |
388 | if (!NILP (Vmouse_leave_buffer_hook)) | |
389 | call1 (Vrun_hooks, Qmouse_leave_buffer_hook); | |
390 | ||
d1fa2e8a KH |
391 | Fselect_window (event); |
392 | } | |
ec28a64d | 393 | string++; |
ec28a64d MB |
394 | } |
395 | else break; | |
396 | } | |
397 | ||
398 | /* Count the number of arguments the interactive spec would have | |
399 | us give to the function. */ | |
400 | tem = string; | |
401 | for (j = 0; *tem; j++) | |
402 | { | |
403 | /* 'r' specifications ("point and mark as 2 numeric args") | |
404 | produce *two* arguments. */ | |
405 | if (*tem == 'r') j++; | |
406 | tem = (unsigned char *) index (tem, '\n'); | |
407 | if (tem) | |
408 | tem++; | |
409 | else | |
410 | tem = (unsigned char *) ""; | |
411 | } | |
6bc1abf2 | 412 | count = j; |
ec28a64d MB |
413 | |
414 | args = (Lisp_Object *) alloca ((count + 1) * sizeof (Lisp_Object)); | |
415 | visargs = (Lisp_Object *) alloca ((count + 1) * sizeof (Lisp_Object)); | |
416 | argstrings = (unsigned char **) alloca ((count + 1) * sizeof (char *)); | |
417 | varies = (int *) alloca ((count + 1) * sizeof (int)); | |
418 | ||
419 | for (i = 0; i < (count + 1); i++) | |
420 | { | |
421 | args[i] = Qnil; | |
422 | visargs[i] = Qnil; | |
423 | varies[i] = 0; | |
424 | } | |
425 | ||
426 | GCPRO4 (prefix_arg, function, *args, *visargs); | |
427 | gcpro3.nvars = (count + 1); | |
428 | gcpro4.nvars = (count + 1); | |
429 | ||
52614803 RS |
430 | if (!NILP (enable)) |
431 | specbind (Qenable_recursive_minibuffers, Qt); | |
432 | ||
ec28a64d | 433 | tem = string; |
6bc1abf2 | 434 | for (i = 1; *tem; i++) |
ec28a64d MB |
435 | { |
436 | strncpy (prompt1, tem + 1, sizeof prompt1 - 1); | |
437 | prompt1[sizeof prompt1 - 1] = 0; | |
438 | tem1 = index (prompt1, '\n'); | |
439 | if (tem1) *tem1 = 0; | |
440 | /* Fill argstrings with a vector of C strings | |
441 | corresponding to the Lisp strings in visargs. */ | |
442 | for (j = 1; j < i; j++) | |
443 | argstrings[j] | |
444 | = EQ (visargs[j], Qnil) | |
445 | ? (unsigned char *) "" | |
46947372 | 446 | : XSTRING (visargs[j])->data; |
ec28a64d | 447 | |
df31bc64 RS |
448 | /* Process the format-string in prompt1, putting the output |
449 | into callint_message. Make callint_message bigger if necessary. | |
450 | We don't use a buffer on the stack, because the contents | |
451 | need to stay stable for a while. */ | |
452 | while (1) | |
453 | { | |
454 | int nchars = doprnt (callint_message, callint_message_size, | |
455 | prompt1, (char *)0, | |
456 | j - 1, argstrings + 1); | |
457 | if (nchars < callint_message_size) | |
458 | break; | |
459 | callint_message_size *= 2; | |
460 | callint_message | |
461 | = (char *) xrealloc (callint_message, callint_message_size); | |
462 | } | |
ec28a64d MB |
463 | |
464 | switch (*tem) | |
465 | { | |
466 | case 'a': /* Symbol defined as a function */ | |
df31bc64 | 467 | visargs[i] = Fcompleting_read (build_string (callint_message), |
ff9cd111 RS |
468 | Vobarray, Qfboundp, Qt, |
469 | Qnil, Qnil, Qnil); | |
ec28a64d MB |
470 | /* Passing args[i] directly stimulates compiler bug */ |
471 | teml = visargs[i]; | |
472 | args[i] = Fintern (teml, Qnil); | |
473 | break; | |
474 | ||
475 | case 'b': /* Name of existing buffer */ | |
476 | args[i] = Fcurrent_buffer (); | |
477 | if (EQ (selected_window, minibuf_window)) | |
9262fcb6 | 478 | args[i] = Fother_buffer (args[i], Qnil); |
df31bc64 | 479 | args[i] = Fread_buffer (build_string (callint_message), args[i], Qt); |
ec28a64d MB |
480 | break; |
481 | ||
482 | case 'B': /* Name of buffer, possibly nonexistent */ | |
df31bc64 | 483 | args[i] = Fread_buffer (build_string (callint_message), |
9262fcb6 RS |
484 | Fother_buffer (Fcurrent_buffer (), Qnil), |
485 | Qnil); | |
ec28a64d MB |
486 | break; |
487 | ||
488 | case 'c': /* Character */ | |
491ee841 RS |
489 | /* Use message_nolog rather than message1_nolog here, |
490 | so that nothing bad happens if callint_message is changed | |
491 | within Fread_char (by a timer, for example). */ | |
492 | message_nolog ("%s", callint_message); | |
ec28a64d | 493 | args[i] = Fread_char (); |
453ed650 | 494 | message1_nolog ((char *) 0); |
ec28a64d MB |
495 | /* Passing args[i] directly stimulates compiler bug */ |
496 | teml = args[i]; | |
497 | visargs[i] = Fchar_to_string (teml); | |
498 | break; | |
499 | ||
500 | case 'C': /* Command: symbol with interactive function */ | |
df31bc64 | 501 | visargs[i] = Fcompleting_read (build_string (callint_message), |
ff9cd111 RS |
502 | Vobarray, Qcommandp, |
503 | Qt, Qnil, Qnil, Qnil); | |
ec28a64d MB |
504 | /* Passing args[i] directly stimulates compiler bug */ |
505 | teml = visargs[i]; | |
506 | args[i] = Fintern (teml, Qnil); | |
507 | break; | |
508 | ||
509 | case 'd': /* Value of point. Does not do I/O. */ | |
824977b6 RS |
510 | Fset_marker (point_marker, make_number (PT), Qnil); |
511 | args[i] = point_marker; | |
ec28a64d MB |
512 | /* visargs[i] = Qnil; */ |
513 | varies[i] = 1; | |
514 | break; | |
515 | ||
ec28a64d | 516 | case 'D': /* Directory name. */ |
df31bc64 | 517 | args[i] = Fread_file_name (build_string (callint_message), Qnil, |
ec28a64d MB |
518 | current_buffer->directory, Qlambda, Qnil); |
519 | break; | |
520 | ||
521 | case 'f': /* Existing file name. */ | |
df31bc64 | 522 | args[i] = Fread_file_name (build_string (callint_message), |
ec28a64d MB |
523 | Qnil, Qnil, Qlambda, Qnil); |
524 | break; | |
525 | ||
526 | case 'F': /* Possibly nonexistent file name. */ | |
df31bc64 | 527 | args[i] = Fread_file_name (build_string (callint_message), |
ec28a64d MB |
528 | Qnil, Qnil, Qnil, Qnil); |
529 | break; | |
530 | ||
40b2421c KH |
531 | case 'i': /* Ignore an argument -- Does not do I/O */ |
532 | varies[i] = -1; | |
533 | break; | |
534 | ||
1989e7bc | 535 | case 'k': /* Key sequence. */ |
c631c234 RS |
536 | { |
537 | int speccount1 = specpdl_ptr - specpdl; | |
538 | specbind (Qcursor_in_echo_area, Qt); | |
539 | args[i] = Fread_key_sequence (build_string (callint_message), | |
540 | Qnil, Qnil, Qnil); | |
541 | unbind_to (speccount1, Qnil); | |
542 | teml = args[i]; | |
543 | visargs[i] = Fkey_description (teml); | |
544 | } | |
1989e7bc RS |
545 | break; |
546 | ||
547 | case 'K': /* Key sequence to be defined. */ | |
c631c234 RS |
548 | { |
549 | int speccount1 = specpdl_ptr - specpdl; | |
550 | specbind (Qcursor_in_echo_area, Qt); | |
551 | args[i] = Fread_key_sequence (build_string (callint_message), | |
552 | Qnil, Qt, Qnil); | |
553 | teml = args[i]; | |
554 | visargs[i] = Fkey_description (teml); | |
555 | unbind_to (speccount1, Qnil); | |
556 | } | |
ec28a64d MB |
557 | break; |
558 | ||
bc78232c | 559 | case 'e': /* The invoking event. */ |
d455db8e | 560 | if (next_event >= key_count) |
bc78232c | 561 | error ("%s must be bound to an event with parameters", |
6e54b3de | 562 | (SYMBOLP (function) |
63007de2 | 563 | ? (char *) XSYMBOL (function)->name->data |
bc78232c | 564 | : "command")); |
d455db8e | 565 | args[i] = XVECTOR (keys)->contents[next_event++]; |
e5d77022 | 566 | varies[i] = -1; |
dbc4e1c1 JB |
567 | |
568 | /* Find the next parameterized event. */ | |
d455db8e | 569 | while (next_event < key_count |
dbc4e1c1 | 570 | && ! (EVENT_HAS_PARAMETERS |
d455db8e | 571 | (XVECTOR (keys)->contents[next_event]))) |
dbc4e1c1 JB |
572 | next_event++; |
573 | ||
63007de2 JB |
574 | break; |
575 | ||
ec28a64d MB |
576 | case 'm': /* Value of mark. Does not do I/O. */ |
577 | check_mark (); | |
578 | /* visargs[i] = Qnil; */ | |
824977b6 | 579 | args[i] = current_buffer->mark; |
ec28a64d MB |
580 | varies[i] = 2; |
581 | break; | |
582 | ||
583 | case 'N': /* Prefix arg, else number from minibuffer */ | |
265a9e55 | 584 | if (!NILP (prefix_arg)) |
ec28a64d MB |
585 | goto have_prefix_arg; |
586 | case 'n': /* Read number from minibuffer. */ | |
f0490a0b RS |
587 | { |
588 | int first = 1; | |
589 | do | |
590 | { | |
591 | Lisp_Object tem; | |
592 | if (! first) | |
593 | { | |
594 | message ("Please enter a number."); | |
56fe6fc0 | 595 | sit_for (1, 0, 0, 0, 0); |
f0490a0b RS |
596 | } |
597 | first = 0; | |
598 | ||
599 | tem = Fread_from_minibuffer (build_string (callint_message), | |
ff9cd111 | 600 | Qnil, Qnil, Qnil, Qnil, Qnil); |
f0490a0b RS |
601 | if (! STRINGP (tem) || XSTRING (tem)->size == 0) |
602 | args[i] = Qnil; | |
603 | else | |
604 | args[i] = Fread (tem); | |
605 | } | |
606 | while (! NUMBERP (args[i])); | |
607 | } | |
ec28a64d MB |
608 | visargs[i] = last_minibuf_string; |
609 | break; | |
610 | ||
611 | case 'P': /* Prefix arg in raw form. Does no I/O. */ | |
ec28a64d MB |
612 | args[i] = prefix_arg; |
613 | /* visargs[i] = Qnil; */ | |
614 | varies[i] = -1; | |
615 | break; | |
616 | ||
617 | case 'p': /* Prefix arg converted to number. No I/O. */ | |
71eda2d5 | 618 | have_prefix_arg: |
ec28a64d MB |
619 | args[i] = Fprefix_numeric_value (prefix_arg); |
620 | /* visargs[i] = Qnil; */ | |
621 | varies[i] = -1; | |
622 | break; | |
623 | ||
624 | case 'r': /* Region, point and mark as 2 args. */ | |
625 | check_mark (); | |
824977b6 | 626 | Fset_marker (point_marker, make_number (PT), Qnil); |
ec28a64d MB |
627 | /* visargs[i+1] = Qnil; */ |
628 | foo = marker_position (current_buffer->mark); | |
629 | /* visargs[i] = Qnil; */ | |
6ec8bbd2 | 630 | args[i] = PT < foo ? point_marker : current_buffer->mark; |
ec28a64d | 631 | varies[i] = 3; |
6ec8bbd2 | 632 | args[++i] = PT > foo ? point_marker : current_buffer->mark; |
ec28a64d MB |
633 | varies[i] = 4; |
634 | break; | |
635 | ||
636 | case 's': /* String read via minibuffer. */ | |
55c4d99f RS |
637 | args[i] = Fread_string (build_string (callint_message), |
638 | Qnil, Qnil, Qnil); | |
ec28a64d MB |
639 | break; |
640 | ||
641 | case 'S': /* Any symbol. */ | |
df31bc64 | 642 | visargs[i] = Fread_string (build_string (callint_message), |
55c4d99f | 643 | Qnil, Qnil, Qnil); |
ec28a64d MB |
644 | /* Passing args[i] directly stimulates compiler bug */ |
645 | teml = visargs[i]; | |
646 | args[i] = Fintern (teml, Qnil); | |
647 | break; | |
648 | ||
649 | case 'v': /* Variable name: symbol that is | |
650 | user-variable-p. */ | |
ff9cd111 | 651 | args[i] = Fread_variable (build_string (callint_message), Qnil); |
ec28a64d MB |
652 | visargs[i] = last_minibuf_string; |
653 | break; | |
654 | ||
655 | case 'x': /* Lisp expression read but not evaluated */ | |
df31bc64 | 656 | args[i] = Fread_minibuffer (build_string (callint_message), Qnil); |
ec28a64d MB |
657 | visargs[i] = last_minibuf_string; |
658 | break; | |
659 | ||
660 | case 'X': /* Lisp expression read and evaluated */ | |
df31bc64 | 661 | args[i] = Feval_minibuffer (build_string (callint_message), Qnil); |
ec28a64d MB |
662 | visargs[i] = last_minibuf_string; |
663 | break; | |
664 | ||
40b2421c KH |
665 | case 'Z': /* Coding-system symbol, or ignore the |
666 | argument if no prefix */ | |
667 | if (NILP (prefix_arg)) | |
668 | { | |
669 | args[i] = Qnil; | |
670 | varies[i] = -1; | |
671 | } | |
672 | else | |
673 | { | |
674 | args[i] | |
675 | = Fread_non_nil_coding_system (build_string (callint_message)); | |
676 | visargs[i] = last_minibuf_string; | |
677 | } | |
678 | break; | |
679 | ||
680 | case 'z': /* Coding-system symbol or nil */ | |
681 | args[i] = Fread_coding_system (build_string (callint_message)); | |
682 | visargs[i] = last_minibuf_string; | |
683 | break; | |
684 | ||
e92d107b RS |
685 | /* We have a case for `+' so we get an error |
686 | if anyone tries to define one here. */ | |
687 | case '+': | |
ec28a64d | 688 | default: |
e92d107b | 689 | error ("Invalid control letter `%c' (%03o) in interactive calling string", |
ec28a64d MB |
690 | *tem, *tem); |
691 | } | |
692 | ||
693 | if (varies[i] == 0) | |
694 | arg_from_tty = 1; | |
695 | ||
6e54b3de | 696 | if (NILP (visargs[i]) && STRINGP (args[i])) |
ec28a64d MB |
697 | visargs[i] = args[i]; |
698 | ||
699 | tem = (unsigned char *) index (tem, '\n'); | |
700 | if (tem) tem++; | |
701 | else tem = (unsigned char *) ""; | |
702 | } | |
52614803 | 703 | unbind_to (speccount, Qnil); |
ec28a64d MB |
704 | |
705 | QUIT; | |
706 | ||
707 | args[0] = function; | |
708 | ||
7868a977 | 709 | if (arg_from_tty || !NILP (record_flag)) |
ec28a64d MB |
710 | { |
711 | visargs[0] = function; | |
63007de2 | 712 | for (i = 1; i < count + 1; i++) |
824977b6 RS |
713 | { |
714 | if (varies[i] > 0) | |
715 | visargs[i] = Fcons (intern (callint_argfuns[varies[i]]), Qnil); | |
716 | else | |
717 | visargs[i] = quotify_arg (args[i]); | |
718 | } | |
ec28a64d MB |
719 | Vcommand_history = Fcons (Flist (count + 1, visargs), |
720 | Vcommand_history); | |
721 | } | |
722 | ||
824977b6 RS |
723 | /* If we used a marker to hold point, mark, or an end of the region, |
724 | temporarily, convert it to an integer now. */ | |
f4c8ded2 | 725 | for (i = 1; i <= count; i++) |
824977b6 RS |
726 | if (varies[i] >= 1 && varies[i] <= 4) |
727 | XSETINT (args[i], marker_position (args[i])); | |
728 | ||
652e2240 | 729 | single_kboard_state (); |
ebfbe249 | 730 | |
ec28a64d MB |
731 | { |
732 | Lisp_Object val; | |
ec28a64d MB |
733 | specbind (Qcommand_debug_status, Qnil); |
734 | ||
735 | val = Ffuncall (count + 1, args); | |
736 | UNGCPRO; | |
737 | return unbind_to (speccount, val); | |
738 | } | |
739 | } | |
740 | ||
741 | DEFUN ("prefix-numeric-value", Fprefix_numeric_value, Sprefix_numeric_value, | |
742 | 1, 1, 0, | |
7868a977 | 743 | "Return numeric meaning of raw prefix argument RAW.\n\ |
ec28a64d MB |
744 | A raw prefix argument is what you get from `(interactive \"P\")'.\n\ |
745 | Its numeric meaning is what you would get from `(interactive \"p\")'.") | |
746 | (raw) | |
747 | Lisp_Object raw; | |
748 | { | |
749 | Lisp_Object val; | |
750 | ||
265a9e55 | 751 | if (NILP (raw)) |
acab6442 | 752 | XSETFASTINT (val, 1); |
fd5285f3 | 753 | else if (EQ (raw, Qminus)) |
ec28a64d | 754 | XSETINT (val, -1); |
3399a477 | 755 | else if (CONSP (raw) && INTEGERP (XCONS (raw)->car)) |
ec28a64d | 756 | XSETINT (val, XINT (XCONS (raw)->car)); |
6e54b3de | 757 | else if (INTEGERP (raw)) |
ec28a64d MB |
758 | val = raw; |
759 | else | |
acab6442 | 760 | XSETFASTINT (val, 1); |
ec28a64d MB |
761 | |
762 | return val; | |
763 | } | |
764 | ||
765 | syms_of_callint () | |
766 | { | |
824977b6 RS |
767 | point_marker = Fmake_marker (); |
768 | staticpro (&point_marker); | |
769 | ||
03e130d5 RS |
770 | preserved_fns = Fcons (intern ("region-beginning"), |
771 | Fcons (intern ("region-end"), | |
772 | Fcons (intern ("point"), | |
773 | Fcons (intern ("mark"), Qnil)))); | |
774 | staticpro (&preserved_fns); | |
775 | ||
776 | Qlist = intern ("list"); | |
777 | staticpro (&Qlist); | |
8450690a RS |
778 | Qlet = intern ("let"); |
779 | staticpro (&Qlet); | |
780 | Qletx = intern ("let*"); | |
781 | staticpro (&Qletx); | |
782 | Qsave_excursion = intern ("save-excursion"); | |
783 | staticpro (&Qsave_excursion); | |
03e130d5 | 784 | |
ec28a64d MB |
785 | Qminus = intern ("-"); |
786 | staticpro (&Qminus); | |
787 | ||
fdb4a38c RS |
788 | Qplus = intern ("+"); |
789 | staticpro (&Qplus); | |
790 | ||
ec28a64d MB |
791 | Qcall_interactively = intern ("call-interactively"); |
792 | staticpro (&Qcall_interactively); | |
793 | ||
794 | Qcommand_debug_status = intern ("command-debug-status"); | |
795 | staticpro (&Qcommand_debug_status); | |
796 | ||
52614803 RS |
797 | Qenable_recursive_minibuffers = intern ("enable-recursive-minibuffers"); |
798 | staticpro (&Qenable_recursive_minibuffers); | |
799 | ||
ef2515c0 RS |
800 | Qmouse_leave_buffer_hook = intern ("mouse-leave-buffer-hook"); |
801 | staticpro (&Qmouse_leave_buffer_hook); | |
802 | ||
df31bc64 RS |
803 | callint_message_size = 100; |
804 | callint_message = (char *) xmalloc (callint_message_size); | |
805 | ||
806 | ||
1e0c5826 | 807 | DEFVAR_KBOARD ("prefix-arg", Vprefix_arg, |
8c917bf2 KH |
808 | "The value of the prefix argument for the next editing command.\n\ |
809 | It may be a number, or the symbol `-' for just a minus sign as arg,\n\ | |
810 | or a list whose car is a number for just one or more C-U's\n\ | |
811 | or nil if no argument has been specified.\n\ | |
812 | \n\ | |
813 | You cannot examine this variable to find the argument for this command\n\ | |
814 | since it has been set to nil by the time you can look.\n\ | |
815 | Instead, you should use the variable `current-prefix-arg', although\n\ | |
816 | normally commands can get this prefix argument with (interactive \"P\")."); | |
8c917bf2 KH |
817 | |
818 | DEFVAR_LISP ("current-prefix-arg", &Vcurrent_prefix_arg, | |
819 | "The value of the prefix argument for this editing command.\n\ | |
820 | It may be a number, or the symbol `-' for just a minus sign as arg,\n\ | |
821 | or a list whose car is a number for just one or more C-U's\n\ | |
822 | or nil if no argument has been specified.\n\ | |
823 | This is what `(interactive \"P\")' returns."); | |
824 | Vcurrent_prefix_arg = Qnil; | |
825 | ||
ec28a64d MB |
826 | DEFVAR_LISP ("command-history", &Vcommand_history, |
827 | "List of recent commands that read arguments from terminal.\n\ | |
828 | Each command is represented as a form to evaluate."); | |
829 | Vcommand_history = Qnil; | |
830 | ||
831 | DEFVAR_LISP ("command-debug-status", &Vcommand_debug_status, | |
832 | "Debugging status of current interactive command.\n\ | |
833 | Bound each time `call-interactively' is called;\n\ | |
834 | may be set by the debugger as a reminder for itself."); | |
835 | Vcommand_debug_status = Qnil; | |
836 | ||
2ad6c959 | 837 | DEFVAR_LISP ("mark-even-if-inactive", &Vmark_even_if_inactive, |
9f315aeb RS |
838 | "*Non-nil means you can use the mark even when inactive.\n\ |
839 | This option makes a difference in Transient Mark mode.\n\ | |
840 | When the option is non-nil, deactivation of the mark\n\ | |
841 | turns off region highlighting, but commands that use the mark\n\ | |
842 | behave as if the mark were still active."); | |
843 | Vmark_even_if_inactive = Qnil; | |
844 | ||
ef2515c0 RS |
845 | DEFVAR_LISP ("mouse-leave-buffer-hook", &Vmouse_leave_buffer_hook, |
846 | "Hook to run when about to switch windows with a mouse command.\n\ | |
847 | Its purpose is to give temporary modes such as Isearch mode\n\ | |
848 | a way to turn themselves off when a mouse command switches windows."); | |
849 | Vmouse_leave_buffer_hook = Qnil; | |
850 | ||
ec28a64d MB |
851 | defsubr (&Sinteractive); |
852 | defsubr (&Scall_interactively); | |
853 | defsubr (&Sprefix_numeric_value); | |
854 | } |