Commit | Line | Data |
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ec28a64d | 1 | /* Call a Lisp function interactively. |
4e87700b | 2 | Copyright (C) 1985, 1986, 1993, 1994, 1995 Free Software Foundation, Inc. |
ec28a64d MB |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
dbc4e1c1 | 8 | the Free Software Foundation; either version 2, or (at your option) |
ec28a64d MB |
9 | any later version. |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
20 | ||
18160b98 | 21 | #include <config.h> |
ec28a64d MB |
22 | #include "lisp.h" |
23 | #include "buffer.h" | |
24 | #include "commands.h" | |
760cbdd3 | 25 | #include "keyboard.h" |
ec28a64d MB |
26 | #include "window.h" |
27 | #include "mocklisp.h" | |
28 | ||
29 | extern char *index (); | |
30 | ||
1cf9cfc6 | 31 | int current_prefix_partial; |
8c917bf2 | 32 | Lisp_Object Vprefix_arg, Vcurrent_prefix_arg, Qminus, Qplus; |
ec28a64d MB |
33 | Lisp_Object Qcall_interactively; |
34 | Lisp_Object Vcommand_history; | |
35 | ||
36 | Lisp_Object Vcommand_debug_status, Qcommand_debug_status; | |
52614803 | 37 | Lisp_Object Qenable_recursive_minibuffers; |
ec28a64d | 38 | |
9f315aeb RS |
39 | /* Non-nil means treat the mark as active |
40 | even if mark_active is 0. */ | |
41 | Lisp_Object Vmark_even_if_inactive; | |
42 | ||
ef2515c0 RS |
43 | Lisp_Object Vmouse_leave_buffer_hook, Qmouse_leave_buffer_hook; |
44 | ||
03e130d5 | 45 | Lisp_Object Qlist; |
824977b6 RS |
46 | static Lisp_Object preserved_fns; |
47 | ||
48 | /* Marker used within call-interactively to refer to point. */ | |
49 | static Lisp_Object point_marker; | |
03e130d5 | 50 | |
1cf9cfc6 KH |
51 | |
52 | void | |
53 | clear_prefix_arg () | |
54 | { | |
1cf9cfc6 KH |
55 | Vprefix_arg = Qnil; |
56 | if (!current_prefix_partial) | |
57 | { | |
cd8b5aa3 KH |
58 | current_kboard->prefix_factor = Qnil; |
59 | current_kboard->prefix_value = Qnil; | |
60 | current_kboard->prefix_sign = 1; | |
61 | current_kboard->prefix_partial = 0; | |
1cf9cfc6 KH |
62 | } |
63 | } | |
64 | ||
65 | void | |
66 | finalize_prefix_arg () | |
67 | { | |
cd8b5aa3 KH |
68 | if (!NILP (current_kboard->prefix_factor)) |
69 | Vprefix_arg = Fcons (current_kboard->prefix_factor, Qnil); | |
70 | else if (NILP (current_kboard->prefix_value)) | |
71 | Vprefix_arg = (current_kboard->prefix_sign > 0 ? Qnil : Qminus); | |
72 | else if (current_kboard->prefix_sign > 0) | |
73 | Vprefix_arg = current_kboard->prefix_value; | |
1cf9cfc6 | 74 | else |
cd8b5aa3 KH |
75 | XSETINT (Vprefix_arg, -XINT (current_kboard->prefix_value)); |
76 | current_kboard->prefix_partial = 0; | |
1cf9cfc6 KH |
77 | } |
78 | ||
79 | static void | |
80 | describe_prefix_arg () | |
81 | { | |
82 | if (INTEGERP (Vprefix_arg)) | |
83 | message ("Arg: %d", Vprefix_arg); | |
84 | else if (CONSP (Vprefix_arg)) | |
85 | message ("Arg: [%d]", XCONS (Vprefix_arg)->car); | |
86 | else if (EQ (Vprefix_arg, Qminus)) | |
87 | message ("Arg: -"); | |
88 | } | |
89 | ||
90 | ||
ec28a64d MB |
91 | /* This comment supplies the doc string for interactive, |
92 | for make-docfile to see. We cannot put this in the real DEFUN | |
93 | due to limits in the Unix cpp. | |
94 | ||
95 | DEFUN ("interactive", Ffoo, Sfoo, 0, 0, 0, | |
96 | "Specify a way of parsing arguments for interactive use of a function.\n\ | |
97 | For example, write\n\ | |
98 | (defun foo (arg) \"Doc string\" (interactive \"p\") ...use arg...)\n\ | |
99 | to make ARG be the prefix argument when `foo' is called as a command.\n\ | |
100 | The \"call\" to `interactive' is actually a declaration rather than a function;\n\ | |
101 | it tells `call-interactively' how to read arguments\n\ | |
102 | to pass to the function.\n\ | |
103 | When actually called, `interactive' just returns nil.\n\ | |
104 | \n\ | |
105 | The argument of `interactive' is usually a string containing a code letter\n\ | |
106 | followed by a prompt. (Some code letters do not use I/O to get\n\ | |
107 | the argument and do not need prompts.) To prompt for multiple arguments,\n\ | |
108 | give a code letter, its prompt, a newline, and another code letter, etc.\n\ | |
109 | Prompts are passed to format, and may use % escapes to print the\n\ | |
110 | arguments that have already been read.\n\ | |
111 | If the argument is not a string, it is evaluated to get a list of\n\ | |
112 | arguments to pass to the function.\n\ | |
113 | Just `(interactive)' means pass no args when calling interactively.\n\ | |
114 | \nCode letters available are:\n\ | |
115 | a -- Function name: symbol with a function definition.\n\ | |
116 | b -- Name of existing buffer.\n\ | |
117 | B -- Name of buffer, possibly nonexistent.\n\ | |
118 | c -- Character.\n\ | |
119 | C -- Command name: symbol with interactive function definition.\n\ | |
120 | d -- Value of point as number. Does not do I/O.\n\ | |
121 | D -- Directory name.\n\ | |
4d1f43c0 RS |
122 | e -- Parametrized event (i.e., one that's a list) that invoked this command.\n\ |
123 | If used more than once, the Nth `e' returns the Nth parameterized event.\n\ | |
124 | This skips events that are integers or symbols.\n\ | |
ec28a64d MB |
125 | f -- Existing file name.\n\ |
126 | F -- Possibly nonexistent file name.\n\ | |
b631003b RS |
127 | k -- Key sequence (downcase the last event if needed to get a definition).\n\ |
128 | K -- Key sequence to be redefined (do not downcase the last event).\n\ | |
ec28a64d MB |
129 | m -- Value of mark as number. Does not do I/O.\n\ |
130 | n -- Number read using minibuffer.\n\ | |
701ca6c0 | 131 | N -- Raw prefix arg, or if none, do like code `n'.\n\ |
ec28a64d MB |
132 | p -- Prefix arg converted to number. Does not do I/O.\n\ |
133 | P -- Prefix arg in raw form. Does not do I/O.\n\ | |
134 | r -- Region: point and mark as 2 numeric args, smallest first. Does no I/O.\n\ | |
135 | s -- Any string.\n\ | |
136 | S -- Any symbol.\n\ | |
137 | v -- Variable name: symbol that is user-variable-p.\n\ | |
138 | x -- Lisp expression read but not evaluated.\n\ | |
139 | X -- Lisp expression read and evaluated.\n\ | |
140 | In addition, if the string begins with `*'\n\ | |
141 | then an error is signaled if the buffer is read-only.\n\ | |
142 | This happens before reading any arguments.\n\ | |
dbc4e1c1 JB |
143 | If the string begins with `@', then Emacs searches the key sequence\n\ |
144 | which invoked the command for its first mouse click (or any other\n\ | |
145 | event which specifies a window), and selects that window before\n\ | |
146 | reading any arguments. You may use both `@' and `*'; they are\n\ | |
147 | processed in the order that they appear." */ | |
ec28a64d MB |
148 | |
149 | /* ARGSUSED */ | |
150 | DEFUN ("interactive", Finteractive, Sinteractive, 0, UNEVALLED, 0, | |
151 | 0 /* See immediately above */) | |
152 | (args) | |
153 | Lisp_Object args; | |
154 | { | |
155 | return Qnil; | |
156 | } | |
157 | ||
158 | /* Quotify EXP: if EXP is constant, return it. | |
159 | If EXP is not constant, return (quote EXP). */ | |
160 | Lisp_Object | |
161 | quotify_arg (exp) | |
162 | register Lisp_Object exp; | |
163 | { | |
6e54b3de | 164 | if (!INTEGERP (exp) && !STRINGP (exp) |
265a9e55 | 165 | && !NILP (exp) && !EQ (exp, Qt)) |
ec28a64d MB |
166 | return Fcons (Qquote, Fcons (exp, Qnil)); |
167 | ||
168 | return exp; | |
169 | } | |
170 | ||
171 | /* Modify EXP by quotifying each element (except the first). */ | |
172 | Lisp_Object | |
173 | quotify_args (exp) | |
174 | Lisp_Object exp; | |
175 | { | |
176 | register Lisp_Object tail; | |
177 | register struct Lisp_Cons *ptr; | |
178 | for (tail = exp; CONSP (tail); tail = ptr->cdr) | |
179 | { | |
180 | ptr = XCONS (tail); | |
181 | ptr->car = quotify_arg (ptr->car); | |
182 | } | |
183 | return exp; | |
184 | } | |
185 | ||
186 | char *callint_argfuns[] | |
187 | = {"", "point", "mark", "region-beginning", "region-end"}; | |
188 | ||
189 | static void | |
190 | check_mark () | |
191 | { | |
86c1cf23 KH |
192 | Lisp_Object tem; |
193 | tem = Fmarker_buffer (current_buffer->mark); | |
265a9e55 | 194 | if (NILP (tem) || (XBUFFER (tem) != current_buffer)) |
ec28a64d | 195 | error ("The mark is not set now"); |
6497d2d8 RM |
196 | if (!NILP (Vtransient_mark_mode) && NILP (Vmark_even_if_inactive) |
197 | && NILP (current_buffer->mark_active)) | |
198 | Fsignal (Qmark_inactive, Qnil); | |
ec28a64d MB |
199 | } |
200 | ||
201 | ||
202 | DEFUN ("call-interactively", Fcall_interactively, Scall_interactively, 1, 2, 0, | |
203 | "Call FUNCTION, reading args according to its interactive calling specs.\n\ | |
204 | The function contains a specification of how to do the argument reading.\n\ | |
205 | In the case of user-defined functions, this is specified by placing a call\n\ | |
206 | to the function `interactive' at the top level of the function body.\n\ | |
207 | See `interactive'.\n\ | |
208 | \n\ | |
209 | Optional second arg RECORD-FLAG non-nil\n\ | |
210 | means unconditionally put this command in the command-history.\n\ | |
211 | Otherwise, this is done only if an arg is read using the minibuffer.") | |
212 | (function, record) | |
213 | Lisp_Object function, record; | |
214 | { | |
215 | Lisp_Object *args, *visargs; | |
216 | unsigned char **argstrings; | |
217 | Lisp_Object fun; | |
218 | Lisp_Object funcar; | |
219 | Lisp_Object specs; | |
220 | Lisp_Object teml; | |
52614803 RS |
221 | Lisp_Object enable; |
222 | int speccount = specpdl_ptr - specpdl; | |
ec28a64d | 223 | |
bc78232c JB |
224 | /* The index of the next element of this_command_keys to examine for |
225 | the 'e' interactive code. */ | |
dbc4e1c1 | 226 | int next_event; |
bc78232c | 227 | |
ec28a64d MB |
228 | Lisp_Object prefix_arg; |
229 | unsigned char *string; | |
230 | unsigned char *tem; | |
63007de2 JB |
231 | |
232 | /* If varies[i] > 0, the i'th argument shouldn't just have its value | |
233 | in this call quoted in the command history. It should be | |
234 | recorded as a call to the function named callint_argfuns[varies[i]]. */ | |
ec28a64d | 235 | int *varies; |
63007de2 | 236 | |
ec28a64d MB |
237 | register int i, j; |
238 | int count, foo; | |
239 | char prompt[100]; | |
240 | char prompt1[100]; | |
241 | char *tem1; | |
242 | int arg_from_tty = 0; | |
243 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
244 | ||
e5d77022 | 245 | /* Save this now, since use of minibuffer will clobber it. */ |
8c917bf2 | 246 | prefix_arg = Vcurrent_prefix_arg; |
ec28a64d | 247 | |
46947372 | 248 | retry: |
ec28a64d | 249 | |
6e54b3de | 250 | if (SYMBOLP (function)) |
afa4c0f3 | 251 | enable = Fget (function, Qenable_recursive_minibuffers); |
52614803 | 252 | |
ffd56f97 | 253 | fun = indirect_function (function); |
ec28a64d MB |
254 | |
255 | specs = Qnil; | |
256 | string = 0; | |
257 | ||
258 | /* Decode the kind of function. Either handle it and return, | |
259 | or go to `lose' if not interactive, or go to `retry' | |
260 | to specify a different function, or set either STRING or SPECS. */ | |
261 | ||
6e54b3de | 262 | if (SUBRP (fun)) |
ec28a64d MB |
263 | { |
264 | string = (unsigned char *) XSUBR (fun)->prompt; | |
265 | if (!string) | |
266 | { | |
267 | lose: | |
b37902c8 | 268 | function = wrong_type_argument (Qcommandp, function); |
ec28a64d MB |
269 | goto retry; |
270 | } | |
132b9337 | 271 | if ((EMACS_INT) string == 1) |
ec28a64d MB |
272 | /* Let SPECS (which is nil) be used as the args. */ |
273 | string = 0; | |
274 | } | |
6e54b3de | 275 | else if (COMPILEDP (fun)) |
ec28a64d | 276 | { |
f9b4aacf | 277 | if ((XVECTOR (fun)->size & PSEUDOVECTOR_SIZE_MASK) <= COMPILED_INTERACTIVE) |
ec28a64d MB |
278 | goto lose; |
279 | specs = XVECTOR (fun)->contents[COMPILED_INTERACTIVE]; | |
280 | } | |
281 | else if (!CONSP (fun)) | |
282 | goto lose; | |
283 | else if (funcar = Fcar (fun), EQ (funcar, Qautoload)) | |
284 | { | |
285 | GCPRO2 (function, prefix_arg); | |
286 | do_autoload (fun, function); | |
287 | UNGCPRO; | |
288 | goto retry; | |
289 | } | |
290 | else if (EQ (funcar, Qlambda)) | |
291 | { | |
292 | specs = Fassq (Qinteractive, Fcdr (Fcdr (fun))); | |
265a9e55 | 293 | if (NILP (specs)) |
ec28a64d MB |
294 | goto lose; |
295 | specs = Fcar (Fcdr (specs)); | |
296 | } | |
297 | else if (EQ (funcar, Qmocklisp)) | |
887e0cba | 298 | { |
652e2240 | 299 | single_kboard_state (); |
887e0cba KH |
300 | return ml_apply (fun, Qinteractive); |
301 | } | |
ec28a64d MB |
302 | else |
303 | goto lose; | |
304 | ||
46947372 | 305 | /* If either specs or string is set to a string, use it. */ |
6e54b3de | 306 | if (STRINGP (specs)) |
46947372 JB |
307 | { |
308 | /* Make a copy of string so that if a GC relocates specs, | |
309 | `string' will still be valid. */ | |
e5d77022 | 310 | string = (unsigned char *) alloca (XSTRING (specs)->size + 1); |
46947372 JB |
311 | bcopy (XSTRING (specs)->data, string, XSTRING (specs)->size + 1); |
312 | } | |
ec28a64d MB |
313 | else if (string == 0) |
314 | { | |
03e130d5 | 315 | Lisp_Object input; |
ec28a64d | 316 | i = num_input_chars; |
03e130d5 RS |
317 | input = specs; |
318 | /* Compute the arg values using the user's expression. */ | |
ec28a64d | 319 | specs = Feval (specs); |
265a9e55 | 320 | if (i != num_input_chars || !NILP (record)) |
03e130d5 RS |
321 | { |
322 | /* We should record this command on the command history. */ | |
323 | Lisp_Object values, car; | |
324 | /* Make a copy of the list of values, for the command history, | |
325 | and turn them into things we can eval. */ | |
326 | values = quotify_args (Fcopy_sequence (specs)); | |
327 | /* If the list of args was produced with an explicit call to `list', | |
328 | look for elements that were computed with (region-beginning) | |
329 | or (region-end), and put those expressions into VALUES | |
330 | instead of the present values. */ | |
331 | car = Fcar (input); | |
332 | if (EQ (car, Qlist)) | |
333 | { | |
334 | Lisp_Object intail, valtail; | |
335 | for (intail = Fcdr (input), valtail = values; | |
336 | CONSP (valtail); | |
337 | intail = Fcdr (intail), valtail = Fcdr (valtail)) | |
338 | { | |
339 | Lisp_Object elt; | |
340 | elt = Fcar (intail); | |
341 | if (CONSP (elt)) | |
342 | { | |
343 | Lisp_Object presflag; | |
344 | presflag = Fmemq (Fcar (elt), preserved_fns); | |
345 | if (!NILP (presflag)) | |
346 | Fsetcar (valtail, Fcar (intail)); | |
347 | } | |
348 | } | |
349 | } | |
350 | Vcommand_history | |
351 | = Fcons (Fcons (function, values), Vcommand_history); | |
352 | } | |
652e2240 | 353 | single_kboard_state (); |
ec28a64d MB |
354 | return apply1 (function, specs); |
355 | } | |
356 | ||
357 | /* Here if function specifies a string to control parsing the defaults */ | |
358 | ||
dbc4e1c1 JB |
359 | /* Set next_event to point to the first event with parameters. */ |
360 | for (next_event = 0; next_event < this_command_key_count; next_event++) | |
361 | if (EVENT_HAS_PARAMETERS | |
362 | (XVECTOR (this_command_keys)->contents[next_event])) | |
363 | break; | |
364 | ||
42bb2790 | 365 | /* Handle special starting chars `*' and `@'. Also `-'. */ |
e92d107b | 366 | /* Note that `+' is reserved for user extensions. */ |
ec28a64d MB |
367 | while (1) |
368 | { | |
fb775602 | 369 | if (*string == '+') |
e92d107b RS |
370 | error ("`+' is not used in `interactive' for ordinary commands"); |
371 | else if (*string == '*') | |
ec28a64d MB |
372 | { |
373 | string++; | |
265a9e55 | 374 | if (!NILP (current_buffer->read_only)) |
ec28a64d MB |
375 | Fbarf_if_buffer_read_only (); |
376 | } | |
42bb2790 RS |
377 | /* Ignore this for semi-compatibility with Lucid. */ |
378 | else if (*string == '-') | |
379 | string++; | |
ec28a64d MB |
380 | else if (*string == '@') |
381 | { | |
86c1cf23 | 382 | Lisp_Object event; |
dbc4e1c1 | 383 | |
86c1cf23 | 384 | event = XVECTOR (this_command_keys)->contents[next_event]; |
dbc4e1c1 | 385 | if (EVENT_HAS_PARAMETERS (event) |
21ba0e68 | 386 | && (event = XCONS (event)->cdr, CONSP (event)) |
6e54b3de | 387 | && (event = XCONS (event)->car, CONSP (event)) |
63525228 | 388 | && (event = XCONS (event)->car, WINDOWP (event)) |
d1fa2e8a | 389 | { |
d68807fc | 390 | if (MINI_WINDOW_P (XWINDOW (event)) |
42bb2790 | 391 | && ! (minibuf_level > 0 && EQ (event, minibuf_window))) |
d1fa2e8a | 392 | error ("Attempt to select inactive minibuffer window"); |
ef2515c0 RS |
393 | |
394 | /* If the current buffer wants to clean up, let it. */ | |
395 | if (!NILP (Vmouse_leave_buffer_hook)) | |
396 | call1 (Vrun_hooks, Qmouse_leave_buffer_hook); | |
397 | ||
d1fa2e8a KH |
398 | Fselect_window (event); |
399 | } | |
ec28a64d | 400 | string++; |
ec28a64d MB |
401 | } |
402 | else break; | |
403 | } | |
404 | ||
405 | /* Count the number of arguments the interactive spec would have | |
406 | us give to the function. */ | |
407 | tem = string; | |
408 | for (j = 0; *tem; j++) | |
409 | { | |
410 | /* 'r' specifications ("point and mark as 2 numeric args") | |
411 | produce *two* arguments. */ | |
412 | if (*tem == 'r') j++; | |
413 | tem = (unsigned char *) index (tem, '\n'); | |
414 | if (tem) | |
415 | tem++; | |
416 | else | |
417 | tem = (unsigned char *) ""; | |
418 | } | |
419 | count = j; | |
420 | ||
421 | args = (Lisp_Object *) alloca ((count + 1) * sizeof (Lisp_Object)); | |
422 | visargs = (Lisp_Object *) alloca ((count + 1) * sizeof (Lisp_Object)); | |
423 | argstrings = (unsigned char **) alloca ((count + 1) * sizeof (char *)); | |
424 | varies = (int *) alloca ((count + 1) * sizeof (int)); | |
425 | ||
426 | for (i = 0; i < (count + 1); i++) | |
427 | { | |
428 | args[i] = Qnil; | |
429 | visargs[i] = Qnil; | |
430 | varies[i] = 0; | |
431 | } | |
432 | ||
433 | GCPRO4 (prefix_arg, function, *args, *visargs); | |
434 | gcpro3.nvars = (count + 1); | |
435 | gcpro4.nvars = (count + 1); | |
436 | ||
52614803 RS |
437 | if (!NILP (enable)) |
438 | specbind (Qenable_recursive_minibuffers, Qt); | |
439 | ||
ec28a64d | 440 | tem = string; |
46947372 | 441 | for (i = 1; *tem; i++) |
ec28a64d MB |
442 | { |
443 | strncpy (prompt1, tem + 1, sizeof prompt1 - 1); | |
444 | prompt1[sizeof prompt1 - 1] = 0; | |
445 | tem1 = index (prompt1, '\n'); | |
446 | if (tem1) *tem1 = 0; | |
447 | /* Fill argstrings with a vector of C strings | |
448 | corresponding to the Lisp strings in visargs. */ | |
449 | for (j = 1; j < i; j++) | |
450 | argstrings[j] | |
451 | = EQ (visargs[j], Qnil) | |
452 | ? (unsigned char *) "" | |
46947372 | 453 | : XSTRING (visargs[j])->data; |
ec28a64d MB |
454 | |
455 | doprnt (prompt, sizeof prompt, prompt1, 0, j - 1, argstrings + 1); | |
456 | ||
457 | switch (*tem) | |
458 | { | |
459 | case 'a': /* Symbol defined as a function */ | |
460 | visargs[i] = Fcompleting_read (build_string (prompt), | |
461 | Vobarray, Qfboundp, Qt, Qnil, Qnil); | |
462 | /* Passing args[i] directly stimulates compiler bug */ | |
463 | teml = visargs[i]; | |
464 | args[i] = Fintern (teml, Qnil); | |
465 | break; | |
466 | ||
467 | case 'b': /* Name of existing buffer */ | |
468 | args[i] = Fcurrent_buffer (); | |
469 | if (EQ (selected_window, minibuf_window)) | |
9262fcb6 | 470 | args[i] = Fother_buffer (args[i], Qnil); |
ec28a64d MB |
471 | args[i] = Fread_buffer (build_string (prompt), args[i], Qt); |
472 | break; | |
473 | ||
474 | case 'B': /* Name of buffer, possibly nonexistent */ | |
475 | args[i] = Fread_buffer (build_string (prompt), | |
9262fcb6 RS |
476 | Fother_buffer (Fcurrent_buffer (), Qnil), |
477 | Qnil); | |
ec28a64d MB |
478 | break; |
479 | ||
480 | case 'c': /* Character */ | |
481 | message1 (prompt); | |
482 | args[i] = Fread_char (); | |
483 | /* Passing args[i] directly stimulates compiler bug */ | |
484 | teml = args[i]; | |
485 | visargs[i] = Fchar_to_string (teml); | |
486 | break; | |
487 | ||
488 | case 'C': /* Command: symbol with interactive function */ | |
489 | visargs[i] = Fcompleting_read (build_string (prompt), | |
490 | Vobarray, Qcommandp, Qt, Qnil, Qnil); | |
491 | /* Passing args[i] directly stimulates compiler bug */ | |
492 | teml = visargs[i]; | |
493 | args[i] = Fintern (teml, Qnil); | |
494 | break; | |
495 | ||
496 | case 'd': /* Value of point. Does not do I/O. */ | |
824977b6 RS |
497 | Fset_marker (point_marker, make_number (PT), Qnil); |
498 | args[i] = point_marker; | |
ec28a64d MB |
499 | /* visargs[i] = Qnil; */ |
500 | varies[i] = 1; | |
501 | break; | |
502 | ||
ec28a64d MB |
503 | case 'D': /* Directory name. */ |
504 | args[i] = Fread_file_name (build_string (prompt), Qnil, | |
505 | current_buffer->directory, Qlambda, Qnil); | |
506 | break; | |
507 | ||
508 | case 'f': /* Existing file name. */ | |
509 | args[i] = Fread_file_name (build_string (prompt), | |
510 | Qnil, Qnil, Qlambda, Qnil); | |
511 | break; | |
512 | ||
513 | case 'F': /* Possibly nonexistent file name. */ | |
514 | args[i] = Fread_file_name (build_string (prompt), | |
515 | Qnil, Qnil, Qnil, Qnil); | |
516 | break; | |
517 | ||
1989e7bc | 518 | case 'k': /* Key sequence. */ |
44820cc3 | 519 | args[i] = Fread_key_sequence (build_string (prompt), Qnil, Qnil, Qnil); |
1989e7bc RS |
520 | teml = args[i]; |
521 | visargs[i] = Fkey_description (teml); | |
522 | break; | |
523 | ||
524 | case 'K': /* Key sequence to be defined. */ | |
44820cc3 | 525 | args[i] = Fread_key_sequence (build_string (prompt), Qnil, Qt, Qnil); |
ec28a64d MB |
526 | teml = args[i]; |
527 | visargs[i] = Fkey_description (teml); | |
528 | break; | |
529 | ||
bc78232c | 530 | case 'e': /* The invoking event. */ |
bc78232c JB |
531 | if (next_event >= this_command_key_count) |
532 | error ("%s must be bound to an event with parameters", | |
6e54b3de | 533 | (SYMBOLP (function) |
63007de2 | 534 | ? (char *) XSYMBOL (function)->name->data |
bc78232c | 535 | : "command")); |
7e6491d3 | 536 | args[i] = XVECTOR (this_command_keys)->contents[next_event++]; |
e5d77022 | 537 | varies[i] = -1; |
dbc4e1c1 JB |
538 | |
539 | /* Find the next parameterized event. */ | |
540 | while (next_event < this_command_key_count | |
541 | && ! (EVENT_HAS_PARAMETERS | |
542 | (XVECTOR (this_command_keys)->contents[next_event]))) | |
543 | next_event++; | |
544 | ||
63007de2 JB |
545 | break; |
546 | ||
ec28a64d MB |
547 | case 'm': /* Value of mark. Does not do I/O. */ |
548 | check_mark (); | |
549 | /* visargs[i] = Qnil; */ | |
824977b6 | 550 | args[i] = current_buffer->mark; |
ec28a64d MB |
551 | varies[i] = 2; |
552 | break; | |
553 | ||
554 | case 'N': /* Prefix arg, else number from minibuffer */ | |
265a9e55 | 555 | if (!NILP (prefix_arg)) |
ec28a64d MB |
556 | goto have_prefix_arg; |
557 | case 'n': /* Read number from minibuffer. */ | |
558 | do | |
559 | args[i] = Fread_minibuffer (build_string (prompt), Qnil); | |
4746118a | 560 | while (! NUMBERP (args[i])); |
ec28a64d MB |
561 | visargs[i] = last_minibuf_string; |
562 | break; | |
563 | ||
564 | case 'P': /* Prefix arg in raw form. Does no I/O. */ | |
565 | have_prefix_arg: | |
566 | args[i] = prefix_arg; | |
567 | /* visargs[i] = Qnil; */ | |
568 | varies[i] = -1; | |
569 | break; | |
570 | ||
571 | case 'p': /* Prefix arg converted to number. No I/O. */ | |
572 | args[i] = Fprefix_numeric_value (prefix_arg); | |
573 | /* visargs[i] = Qnil; */ | |
574 | varies[i] = -1; | |
575 | break; | |
576 | ||
577 | case 'r': /* Region, point and mark as 2 args. */ | |
578 | check_mark (); | |
824977b6 | 579 | Fset_marker (point_marker, make_number (PT), Qnil); |
ec28a64d MB |
580 | /* visargs[i+1] = Qnil; */ |
581 | foo = marker_position (current_buffer->mark); | |
582 | /* visargs[i] = Qnil; */ | |
824977b6 | 583 | args[i] = point < foo ? point_marker : current_buffer->mark; |
ec28a64d | 584 | varies[i] = 3; |
824977b6 | 585 | args[++i] = point > foo ? point_marker : current_buffer->mark; |
ec28a64d MB |
586 | varies[i] = 4; |
587 | break; | |
588 | ||
589 | case 's': /* String read via minibuffer. */ | |
80896ab4 | 590 | args[i] = Fread_string (build_string (prompt), Qnil, Qnil); |
ec28a64d MB |
591 | break; |
592 | ||
593 | case 'S': /* Any symbol. */ | |
80896ab4 | 594 | visargs[i] = Fread_string (build_string (prompt), Qnil, Qnil); |
ec28a64d MB |
595 | /* Passing args[i] directly stimulates compiler bug */ |
596 | teml = visargs[i]; | |
597 | args[i] = Fintern (teml, Qnil); | |
598 | break; | |
599 | ||
600 | case 'v': /* Variable name: symbol that is | |
601 | user-variable-p. */ | |
602 | args[i] = Fread_variable (build_string (prompt)); | |
603 | visargs[i] = last_minibuf_string; | |
604 | break; | |
605 | ||
606 | case 'x': /* Lisp expression read but not evaluated */ | |
607 | args[i] = Fread_minibuffer (build_string (prompt), Qnil); | |
608 | visargs[i] = last_minibuf_string; | |
609 | break; | |
610 | ||
611 | case 'X': /* Lisp expression read and evaluated */ | |
612 | args[i] = Feval_minibuffer (build_string (prompt), Qnil); | |
613 | visargs[i] = last_minibuf_string; | |
614 | break; | |
615 | ||
e92d107b RS |
616 | /* We have a case for `+' so we get an error |
617 | if anyone tries to define one here. */ | |
618 | case '+': | |
ec28a64d | 619 | default: |
e92d107b | 620 | error ("Invalid control letter `%c' (%03o) in interactive calling string", |
ec28a64d MB |
621 | *tem, *tem); |
622 | } | |
623 | ||
624 | if (varies[i] == 0) | |
625 | arg_from_tty = 1; | |
626 | ||
6e54b3de | 627 | if (NILP (visargs[i]) && STRINGP (args[i])) |
ec28a64d MB |
628 | visargs[i] = args[i]; |
629 | ||
630 | tem = (unsigned char *) index (tem, '\n'); | |
631 | if (tem) tem++; | |
632 | else tem = (unsigned char *) ""; | |
633 | } | |
52614803 | 634 | unbind_to (speccount, Qnil); |
ec28a64d MB |
635 | |
636 | QUIT; | |
637 | ||
638 | args[0] = function; | |
639 | ||
265a9e55 | 640 | if (arg_from_tty || !NILP (record)) |
ec28a64d MB |
641 | { |
642 | visargs[0] = function; | |
63007de2 | 643 | for (i = 1; i < count + 1; i++) |
824977b6 RS |
644 | { |
645 | if (varies[i] > 0) | |
646 | visargs[i] = Fcons (intern (callint_argfuns[varies[i]]), Qnil); | |
647 | else | |
648 | visargs[i] = quotify_arg (args[i]); | |
649 | } | |
ec28a64d MB |
650 | Vcommand_history = Fcons (Flist (count + 1, visargs), |
651 | Vcommand_history); | |
652 | } | |
653 | ||
824977b6 RS |
654 | /* If we used a marker to hold point, mark, or an end of the region, |
655 | temporarily, convert it to an integer now. */ | |
f4c8ded2 | 656 | for (i = 1; i <= count; i++) |
824977b6 RS |
657 | if (varies[i] >= 1 && varies[i] <= 4) |
658 | XSETINT (args[i], marker_position (args[i])); | |
659 | ||
652e2240 | 660 | single_kboard_state (); |
ebfbe249 | 661 | |
ec28a64d MB |
662 | { |
663 | Lisp_Object val; | |
ec28a64d MB |
664 | specbind (Qcommand_debug_status, Qnil); |
665 | ||
666 | val = Ffuncall (count + 1, args); | |
667 | UNGCPRO; | |
668 | return unbind_to (speccount, val); | |
669 | } | |
670 | } | |
671 | ||
672 | DEFUN ("prefix-numeric-value", Fprefix_numeric_value, Sprefix_numeric_value, | |
673 | 1, 1, 0, | |
674 | "Return numeric meaning of raw prefix argument ARG.\n\ | |
675 | A raw prefix argument is what you get from `(interactive \"P\")'.\n\ | |
676 | Its numeric meaning is what you would get from `(interactive \"p\")'.") | |
677 | (raw) | |
678 | Lisp_Object raw; | |
679 | { | |
680 | Lisp_Object val; | |
681 | ||
265a9e55 | 682 | if (NILP (raw)) |
acab6442 | 683 | XSETFASTINT (val, 1); |
fd5285f3 | 684 | else if (EQ (raw, Qminus)) |
ec28a64d MB |
685 | XSETINT (val, -1); |
686 | else if (CONSP (raw)) | |
687 | XSETINT (val, XINT (XCONS (raw)->car)); | |
6e54b3de | 688 | else if (INTEGERP (raw)) |
ec28a64d MB |
689 | val = raw; |
690 | else | |
acab6442 | 691 | XSETFASTINT (val, 1); |
ec28a64d MB |
692 | |
693 | return val; | |
694 | } | |
695 | ||
1cf9cfc6 KH |
696 | DEFUN ("universal-argument", Funiversal_argument, Suniversal_argument, 0, 0, "", |
697 | "Begin a numeric argument for the following command.\n\ | |
698 | Digits or minus sign following \\[universal-argument] make up the numeric argument.\n\ | |
699 | \\[universal-argument] following the digits or minus sign ends the argument.\n\ | |
700 | \\[universal-argument] without digits or minus sign provides 4 as argument.\n\ | |
701 | Repeating \\[universal-argument] without digits or minus sign\n\ | |
702 | multiplies the argument by 4 each time.") | |
703 | () | |
704 | { | |
705 | if (!current_prefix_partial) | |
706 | { | |
707 | /* First C-u */ | |
cd8b5aa3 KH |
708 | XSETFASTINT (current_kboard->prefix_factor, 4); |
709 | current_kboard->prefix_value = Qnil; | |
710 | current_kboard->prefix_sign = 1; | |
711 | current_kboard->prefix_partial = 1; | |
1cf9cfc6 | 712 | } |
cd8b5aa3 | 713 | else if (!NILP (current_kboard->prefix_factor)) |
1cf9cfc6 KH |
714 | { |
715 | /* Subsequent C-u */ | |
cd8b5aa3 KH |
716 | XSETINT (current_kboard->prefix_factor, |
717 | XINT (current_kboard->prefix_factor) * 4); | |
718 | current_kboard->prefix_partial = 1; | |
1cf9cfc6 KH |
719 | } |
720 | else | |
721 | { | |
722 | /* Terminating C-u */ | |
723 | finalize_prefix_arg (); | |
724 | describe_prefix_arg (); | |
725 | } | |
726 | } | |
727 | ||
728 | DEFUN ("negative-argument", Fnegative_argument, Snegative_argument, 0, 0, "", | |
729 | "Begin a negative numeric argument for the next command.\n\ | |
730 | \\[universal-argument] following digits or minus sign ends the argument.") | |
731 | () | |
732 | { | |
cd8b5aa3 KH |
733 | current_kboard->prefix_factor = Qnil; |
734 | current_kboard->prefix_sign *= -1; | |
735 | current_kboard->prefix_partial = 1; | |
1cf9cfc6 KH |
736 | } |
737 | ||
738 | DEFUN ("digit-argument", Fdigit_argument, Sdigit_argument, 0, 0, "", | |
739 | "Part of the numeric argument for the next command.\n\ | |
740 | \\[universal-argument] following digits or minus sign ends the argument.") | |
741 | () | |
742 | { | |
743 | int c; | |
744 | if (!(INTEGERP (last_command_char) | |
745 | && (c = (XINT (last_command_char) & 0177)) >= '0' && c <= '9')) | |
746 | error("digit-argument must be bound to a digit key"); | |
cd8b5aa3 KH |
747 | current_kboard->prefix_factor = Qnil; |
748 | if (NILP (current_kboard->prefix_value)) | |
749 | XSETFASTINT (current_kboard->prefix_value, 0); | |
750 | XSETINT (current_kboard->prefix_value, | |
751 | XINT (current_kboard->prefix_value) * 10 + (c - '0')); | |
752 | current_kboard->prefix_partial = 1; | |
1cf9cfc6 KH |
753 | } |
754 | ||
ec28a64d MB |
755 | syms_of_callint () |
756 | { | |
824977b6 RS |
757 | point_marker = Fmake_marker (); |
758 | staticpro (&point_marker); | |
759 | ||
03e130d5 RS |
760 | preserved_fns = Fcons (intern ("region-beginning"), |
761 | Fcons (intern ("region-end"), | |
762 | Fcons (intern ("point"), | |
763 | Fcons (intern ("mark"), Qnil)))); | |
764 | staticpro (&preserved_fns); | |
765 | ||
766 | Qlist = intern ("list"); | |
767 | staticpro (&Qlist); | |
768 | ||
ec28a64d MB |
769 | Qminus = intern ("-"); |
770 | staticpro (&Qminus); | |
771 | ||
fdb4a38c RS |
772 | Qplus = intern ("+"); |
773 | staticpro (&Qplus); | |
774 | ||
ec28a64d MB |
775 | Qcall_interactively = intern ("call-interactively"); |
776 | staticpro (&Qcall_interactively); | |
777 | ||
778 | Qcommand_debug_status = intern ("command-debug-status"); | |
779 | staticpro (&Qcommand_debug_status); | |
780 | ||
52614803 RS |
781 | Qenable_recursive_minibuffers = intern ("enable-recursive-minibuffers"); |
782 | staticpro (&Qenable_recursive_minibuffers); | |
783 | ||
ef2515c0 RS |
784 | Qmouse_leave_buffer_hook = intern ("mouse-leave-buffer-hook"); |
785 | staticpro (&Qmouse_leave_buffer_hook); | |
786 | ||
8c917bf2 KH |
787 | DEFVAR_LISP ("prefix-arg", &Vprefix_arg, |
788 | "The value of the prefix argument for the next editing command.\n\ | |
789 | It may be a number, or the symbol `-' for just a minus sign as arg,\n\ | |
790 | or a list whose car is a number for just one or more C-U's\n\ | |
791 | or nil if no argument has been specified.\n\ | |
792 | \n\ | |
793 | You cannot examine this variable to find the argument for this command\n\ | |
794 | since it has been set to nil by the time you can look.\n\ | |
795 | Instead, you should use the variable `current-prefix-arg', although\n\ | |
796 | normally commands can get this prefix argument with (interactive \"P\")."); | |
797 | Vprefix_arg = Qnil; | |
798 | ||
799 | DEFVAR_LISP ("current-prefix-arg", &Vcurrent_prefix_arg, | |
800 | "The value of the prefix argument for this editing command.\n\ | |
801 | It may be a number, or the symbol `-' for just a minus sign as arg,\n\ | |
802 | or a list whose car is a number for just one or more C-U's\n\ | |
803 | or nil if no argument has been specified.\n\ | |
804 | This is what `(interactive \"P\")' returns."); | |
805 | Vcurrent_prefix_arg = Qnil; | |
806 | ||
ec28a64d MB |
807 | DEFVAR_LISP ("command-history", &Vcommand_history, |
808 | "List of recent commands that read arguments from terminal.\n\ | |
809 | Each command is represented as a form to evaluate."); | |
810 | Vcommand_history = Qnil; | |
811 | ||
812 | DEFVAR_LISP ("command-debug-status", &Vcommand_debug_status, | |
813 | "Debugging status of current interactive command.\n\ | |
814 | Bound each time `call-interactively' is called;\n\ | |
815 | may be set by the debugger as a reminder for itself."); | |
816 | Vcommand_debug_status = Qnil; | |
817 | ||
2ad6c959 | 818 | DEFVAR_LISP ("mark-even-if-inactive", &Vmark_even_if_inactive, |
9f315aeb RS |
819 | "*Non-nil means you can use the mark even when inactive.\n\ |
820 | This option makes a difference in Transient Mark mode.\n\ | |
821 | When the option is non-nil, deactivation of the mark\n\ | |
822 | turns off region highlighting, but commands that use the mark\n\ | |
823 | behave as if the mark were still active."); | |
824 | Vmark_even_if_inactive = Qnil; | |
825 | ||
ef2515c0 RS |
826 | DEFVAR_LISP ("mouse-leave-buffer-hook", &Vmouse_leave_buffer_hook, |
827 | "Hook to run when about to switch windows with a mouse command.\n\ | |
828 | Its purpose is to give temporary modes such as Isearch mode\n\ | |
829 | a way to turn themselves off when a mouse command switches windows."); | |
830 | Vmouse_leave_buffer_hook = Qnil; | |
831 | ||
ec28a64d MB |
832 | defsubr (&Sinteractive); |
833 | defsubr (&Scall_interactively); | |
834 | defsubr (&Sprefix_numeric_value); | |
1cf9cfc6 KH |
835 | defsubr (&Suniversal_argument); |
836 | defsubr (&Snegative_argument); | |
837 | defsubr (&Sdigit_argument); | |
ec28a64d | 838 | } |