Commit | Line | Data |
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ec28a64d | 1 | /* Call a Lisp function interactively. |
dc330139 | 2 | Copyright (C) 1985, 86, 93, 94, 95, 1997 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 | ||
225c2157 RS |
38 | extern Lisp_Object Vhistory_length; |
39 | ||
ec28a64d | 40 | Lisp_Object Vcommand_debug_status, Qcommand_debug_status; |
52614803 | 41 | Lisp_Object Qenable_recursive_minibuffers; |
ec28a64d | 42 | |
9f315aeb RS |
43 | /* Non-nil means treat the mark as active |
44 | even if mark_active is 0. */ | |
45 | Lisp_Object Vmark_even_if_inactive; | |
46 | ||
ef2515c0 RS |
47 | Lisp_Object Vmouse_leave_buffer_hook, Qmouse_leave_buffer_hook; |
48 | ||
8450690a | 49 | Lisp_Object Qlist, Qlet, Qletx, Qsave_excursion; |
824977b6 RS |
50 | static Lisp_Object preserved_fns; |
51 | ||
52 | /* Marker used within call-interactively to refer to point. */ | |
53 | static Lisp_Object point_marker; | |
03e130d5 | 54 | |
df31bc64 RS |
55 | /* Buffer for the prompt text used in Fcall_interactively. */ |
56 | static char *callint_message; | |
57 | ||
58 | /* Allocated length of that buffer. */ | |
59 | static int callint_message_size; | |
1cf9cfc6 | 60 | |
ec28a64d MB |
61 | /* This comment supplies the doc string for interactive, |
62 | for make-docfile to see. We cannot put this in the real DEFUN | |
63 | due to limits in the Unix cpp. | |
64 | ||
65 | DEFUN ("interactive", Ffoo, Sfoo, 0, 0, 0, | |
66 | "Specify a way of parsing arguments for interactive use of a function.\n\ | |
67 | For example, write\n\ | |
68 | (defun foo (arg) \"Doc string\" (interactive \"p\") ...use arg...)\n\ | |
69 | to make ARG be the prefix argument when `foo' is called as a command.\n\ | |
70 | The \"call\" to `interactive' is actually a declaration rather than a function;\n\ | |
71 | it tells `call-interactively' how to read arguments\n\ | |
72 | to pass to the function.\n\ | |
73 | When actually called, `interactive' just returns nil.\n\ | |
74 | \n\ | |
75 | The argument of `interactive' is usually a string containing a code letter\n\ | |
76 | followed by a prompt. (Some code letters do not use I/O to get\n\ | |
77 | the argument and do not need prompts.) To prompt for multiple arguments,\n\ | |
78 | give a code letter, its prompt, a newline, and another code letter, etc.\n\ | |
79 | Prompts are passed to format, and may use % escapes to print the\n\ | |
80 | arguments that have already been read.\n\ | |
81 | If the argument is not a string, it is evaluated to get a list of\n\ | |
82 | arguments to pass to the function.\n\ | |
83 | Just `(interactive)' means pass no args when calling interactively.\n\ | |
84 | \nCode letters available are:\n\ | |
85 | a -- Function name: symbol with a function definition.\n\ | |
86 | b -- Name of existing buffer.\n\ | |
87 | B -- Name of buffer, possibly nonexistent.\n\ | |
24819c43 | 88 | c -- Character (no input method is used).\n\ |
ec28a64d MB |
89 | C -- Command name: symbol with interactive function definition.\n\ |
90 | d -- Value of point as number. Does not do I/O.\n\ | |
91 | D -- Directory name.\n\ | |
4d1f43c0 RS |
92 | e -- Parametrized event (i.e., one that's a list) that invoked this command.\n\ |
93 | If used more than once, the Nth `e' returns the Nth parameterized event.\n\ | |
94 | This skips events that are integers or symbols.\n\ | |
ec28a64d MB |
95 | f -- Existing file name.\n\ |
96 | F -- Possibly nonexistent file name.\n\ | |
40b2421c | 97 | i -- Ignored, i.e. always nil. Does not do I/O.\n\ |
b631003b RS |
98 | k -- Key sequence (downcase the last event if needed to get a definition).\n\ |
99 | K -- Key sequence to be redefined (do not downcase the last event).\n\ | |
ec28a64d | 100 | m -- Value of mark as number. Does not do I/O.\n\ |
93fb51ae | 101 | M -- Any string. Inherits the current input method.\n\ |
ec28a64d | 102 | n -- Number read using minibuffer.\n\ |
701ca6c0 | 103 | N -- Raw prefix arg, or if none, do like code `n'.\n\ |
ec28a64d MB |
104 | p -- Prefix arg converted to number. Does not do I/O.\n\ |
105 | P -- Prefix arg in raw form. Does not do I/O.\n\ | |
106 | r -- Region: point and mark as 2 numeric args, smallest first. Does no I/O.\n\ | |
93fb51ae | 107 | s -- Any string. Does not inherit the current input method.\n\ |
ec28a64d MB |
108 | S -- Any symbol.\n\ |
109 | v -- Variable name: symbol that is user-variable-p.\n\ | |
110 | x -- Lisp expression read but not evaluated.\n\ | |
111 | X -- Lisp expression read and evaluated.\n\ | |
40b2421c KH |
112 | z -- Coding system.\n\ |
113 | Z -- Coding system, nil if no prefix arg.\n\ | |
ec28a64d MB |
114 | In addition, if the string begins with `*'\n\ |
115 | then an error is signaled if the buffer is read-only.\n\ | |
116 | This happens before reading any arguments.\n\ | |
dbc4e1c1 JB |
117 | If the string begins with `@', then Emacs searches the key sequence\n\ |
118 | which invoked the command for its first mouse click (or any other\n\ | |
119 | event which specifies a window), and selects that window before\n\ | |
120 | reading any arguments. You may use both `@' and `*'; they are\n\ | |
121 | processed in the order that they appear." */ | |
ec28a64d MB |
122 | |
123 | /* ARGSUSED */ | |
124 | DEFUN ("interactive", Finteractive, Sinteractive, 0, UNEVALLED, 0, | |
125 | 0 /* See immediately above */) | |
126 | (args) | |
127 | Lisp_Object args; | |
128 | { | |
129 | return Qnil; | |
130 | } | |
131 | ||
132 | /* Quotify EXP: if EXP is constant, return it. | |
133 | If EXP is not constant, return (quote EXP). */ | |
134 | Lisp_Object | |
135 | quotify_arg (exp) | |
136 | register Lisp_Object exp; | |
137 | { | |
6e54b3de | 138 | if (!INTEGERP (exp) && !STRINGP (exp) |
265a9e55 | 139 | && !NILP (exp) && !EQ (exp, Qt)) |
ec28a64d MB |
140 | return Fcons (Qquote, Fcons (exp, Qnil)); |
141 | ||
142 | return exp; | |
143 | } | |
144 | ||
145 | /* Modify EXP by quotifying each element (except the first). */ | |
146 | Lisp_Object | |
147 | quotify_args (exp) | |
148 | Lisp_Object exp; | |
149 | { | |
150 | register Lisp_Object tail; | |
151 | register struct Lisp_Cons *ptr; | |
152 | for (tail = exp; CONSP (tail); tail = ptr->cdr) | |
153 | { | |
154 | ptr = XCONS (tail); | |
155 | ptr->car = quotify_arg (ptr->car); | |
156 | } | |
157 | return exp; | |
158 | } | |
159 | ||
160 | char *callint_argfuns[] | |
161 | = {"", "point", "mark", "region-beginning", "region-end"}; | |
162 | ||
163 | static void | |
164 | check_mark () | |
165 | { | |
86c1cf23 KH |
166 | Lisp_Object tem; |
167 | tem = Fmarker_buffer (current_buffer->mark); | |
265a9e55 | 168 | if (NILP (tem) || (XBUFFER (tem) != current_buffer)) |
ec28a64d | 169 | error ("The mark is not set now"); |
6497d2d8 RM |
170 | if (!NILP (Vtransient_mark_mode) && NILP (Vmark_even_if_inactive) |
171 | && NILP (current_buffer->mark_active)) | |
172 | Fsignal (Qmark_inactive, Qnil); | |
ec28a64d MB |
173 | } |
174 | ||
175 | ||
d455db8e | 176 | DEFUN ("call-interactively", Fcall_interactively, Scall_interactively, 1, 3, 0, |
ec28a64d | 177 | "Call FUNCTION, reading args according to its interactive calling specs.\n\ |
994662ce | 178 | Return the value FUNCTION returns.\n\ |
ec28a64d MB |
179 | The function contains a specification of how to do the argument reading.\n\ |
180 | In the case of user-defined functions, this is specified by placing a call\n\ | |
181 | to the function `interactive' at the top level of the function body.\n\ | |
182 | See `interactive'.\n\ | |
183 | \n\ | |
184 | Optional second arg RECORD-FLAG non-nil\n\ | |
185 | means unconditionally put this command in the command-history.\n\ | |
6bc1abf2 | 186 | Otherwise, this is done only if an arg is read using the minibuffer.") |
7868a977 EN |
187 | (function, record_flag, keys) |
188 | Lisp_Object function, record_flag, keys; | |
ec28a64d MB |
189 | { |
190 | Lisp_Object *args, *visargs; | |
191 | unsigned char **argstrings; | |
192 | Lisp_Object fun; | |
193 | Lisp_Object funcar; | |
194 | Lisp_Object specs; | |
195 | Lisp_Object teml; | |
52614803 RS |
196 | Lisp_Object enable; |
197 | int speccount = specpdl_ptr - specpdl; | |
ec28a64d | 198 | |
bc78232c JB |
199 | /* The index of the next element of this_command_keys to examine for |
200 | the 'e' interactive code. */ | |
dbc4e1c1 | 201 | int next_event; |
bc78232c | 202 | |
ec28a64d MB |
203 | Lisp_Object prefix_arg; |
204 | unsigned char *string; | |
205 | unsigned char *tem; | |
63007de2 JB |
206 | |
207 | /* If varies[i] > 0, the i'th argument shouldn't just have its value | |
208 | in this call quoted in the command history. It should be | |
209 | recorded as a call to the function named callint_argfuns[varies[i]]. */ | |
ec28a64d | 210 | int *varies; |
63007de2 | 211 | |
ec28a64d MB |
212 | register int i, j; |
213 | int count, foo; | |
ec28a64d MB |
214 | char prompt1[100]; |
215 | char *tem1; | |
216 | int arg_from_tty = 0; | |
217 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
d455db8e RS |
218 | int key_count; |
219 | ||
220 | if (NILP (keys)) | |
221 | keys = this_command_keys, key_count = this_command_key_count; | |
222 | else | |
223 | { | |
224 | CHECK_VECTOR (keys, 3); | |
225 | key_count = XVECTOR (keys)->size; | |
226 | } | |
ec28a64d | 227 | |
e5d77022 | 228 | /* Save this now, since use of minibuffer will clobber it. */ |
8c917bf2 | 229 | prefix_arg = Vcurrent_prefix_arg; |
ec28a64d | 230 | |
46947372 | 231 | retry: |
ec28a64d | 232 | |
6e54b3de | 233 | if (SYMBOLP (function)) |
afa4c0f3 | 234 | enable = Fget (function, Qenable_recursive_minibuffers); |
52614803 | 235 | |
ffd56f97 | 236 | fun = indirect_function (function); |
ec28a64d MB |
237 | |
238 | specs = Qnil; | |
239 | string = 0; | |
240 | ||
241 | /* Decode the kind of function. Either handle it and return, | |
242 | or go to `lose' if not interactive, or go to `retry' | |
243 | to specify a different function, or set either STRING or SPECS. */ | |
244 | ||
6e54b3de | 245 | if (SUBRP (fun)) |
ec28a64d MB |
246 | { |
247 | string = (unsigned char *) XSUBR (fun)->prompt; | |
248 | if (!string) | |
249 | { | |
250 | lose: | |
b37902c8 | 251 | function = wrong_type_argument (Qcommandp, function); |
ec28a64d MB |
252 | goto retry; |
253 | } | |
132b9337 | 254 | if ((EMACS_INT) string == 1) |
ec28a64d MB |
255 | /* Let SPECS (which is nil) be used as the args. */ |
256 | string = 0; | |
257 | } | |
6e54b3de | 258 | else if (COMPILEDP (fun)) |
ec28a64d | 259 | { |
f9b4aacf | 260 | if ((XVECTOR (fun)->size & PSEUDOVECTOR_SIZE_MASK) <= COMPILED_INTERACTIVE) |
ec28a64d MB |
261 | goto lose; |
262 | specs = XVECTOR (fun)->contents[COMPILED_INTERACTIVE]; | |
263 | } | |
264 | else if (!CONSP (fun)) | |
265 | goto lose; | |
266 | else if (funcar = Fcar (fun), EQ (funcar, Qautoload)) | |
267 | { | |
268 | GCPRO2 (function, prefix_arg); | |
269 | do_autoload (fun, function); | |
270 | UNGCPRO; | |
271 | goto retry; | |
272 | } | |
273 | else if (EQ (funcar, Qlambda)) | |
274 | { | |
275 | specs = Fassq (Qinteractive, Fcdr (Fcdr (fun))); | |
265a9e55 | 276 | if (NILP (specs)) |
ec28a64d MB |
277 | goto lose; |
278 | specs = Fcar (Fcdr (specs)); | |
279 | } | |
280 | else if (EQ (funcar, Qmocklisp)) | |
887e0cba | 281 | { |
652e2240 | 282 | single_kboard_state (); |
887e0cba KH |
283 | return ml_apply (fun, Qinteractive); |
284 | } | |
ec28a64d MB |
285 | else |
286 | goto lose; | |
287 | ||
46947372 | 288 | /* If either specs or string is set to a string, use it. */ |
6e54b3de | 289 | if (STRINGP (specs)) |
46947372 JB |
290 | { |
291 | /* Make a copy of string so that if a GC relocates specs, | |
292 | `string' will still be valid. */ | |
fc932ac6 RS |
293 | string = (unsigned char *) alloca (STRING_BYTES (XSTRING (specs)) + 1); |
294 | bcopy (XSTRING (specs)->data, string, | |
295 | STRING_BYTES (XSTRING (specs)) + 1); | |
46947372 | 296 | } |
ec28a64d MB |
297 | else if (string == 0) |
298 | { | |
03e130d5 | 299 | Lisp_Object input; |
91a6ba78 | 300 | i = num_input_events; |
03e130d5 RS |
301 | input = specs; |
302 | /* Compute the arg values using the user's expression. */ | |
6bc1abf2 | 303 | specs = Feval (specs); |
91a6ba78 | 304 | if (i != num_input_events || !NILP (record_flag)) |
03e130d5 RS |
305 | { |
306 | /* We should record this command on the command history. */ | |
307 | Lisp_Object values, car; | |
308 | /* Make a copy of the list of values, for the command history, | |
309 | and turn them into things we can eval. */ | |
310 | values = quotify_args (Fcopy_sequence (specs)); | |
311 | /* If the list of args was produced with an explicit call to `list', | |
312 | look for elements that were computed with (region-beginning) | |
313 | or (region-end), and put those expressions into VALUES | |
314 | instead of the present values. */ | |
8450690a | 315 | if (CONSP (input)) |
03e130d5 | 316 | { |
8450690a RS |
317 | car = XCONS (input)->car; |
318 | /* Skip through certain special forms. */ | |
319 | while (EQ (car, Qlet) || EQ (car, Qletx) | |
320 | || EQ (car, Qsave_excursion)) | |
03e130d5 | 321 | { |
8450690a RS |
322 | while (CONSP (XCONS (input)->cdr)) |
323 | input = XCONS (input)->cdr; | |
324 | input = XCONS (input)->car; | |
325 | if (!CONSP (input)) | |
326 | break; | |
327 | car = XCONS (input)->car; | |
328 | } | |
329 | if (EQ (car, Qlist)) | |
330 | { | |
331 | Lisp_Object intail, valtail; | |
332 | for (intail = Fcdr (input), valtail = values; | |
333 | CONSP (valtail); | |
334 | intail = Fcdr (intail), valtail = Fcdr (valtail)) | |
03e130d5 | 335 | { |
8450690a RS |
336 | Lisp_Object elt; |
337 | elt = Fcar (intail); | |
338 | if (CONSP (elt)) | |
339 | { | |
340 | Lisp_Object presflag; | |
341 | presflag = Fmemq (Fcar (elt), preserved_fns); | |
342 | if (!NILP (presflag)) | |
343 | Fsetcar (valtail, Fcar (intail)); | |
344 | } | |
03e130d5 RS |
345 | } |
346 | } | |
347 | } | |
348 | Vcommand_history | |
349 | = Fcons (Fcons (function, values), Vcommand_history); | |
225c2157 RS |
350 | |
351 | /* Don't keep command history around forever. */ | |
352 | if (NUMBERP (Vhistory_length) && XINT (Vhistory_length) > 0) | |
353 | { | |
354 | teml = Fnthcdr (Vhistory_length, Vcommand_history); | |
355 | if (CONSP (teml)) | |
356 | XCONS (teml)->cdr = Qnil; | |
357 | } | |
03e130d5 | 358 | } |
652e2240 | 359 | single_kboard_state (); |
ec28a64d MB |
360 | return apply1 (function, specs); |
361 | } | |
362 | ||
363 | /* Here if function specifies a string to control parsing the defaults */ | |
364 | ||
dbc4e1c1 | 365 | /* Set next_event to point to the first event with parameters. */ |
d455db8e RS |
366 | for (next_event = 0; next_event < key_count; next_event++) |
367 | if (EVENT_HAS_PARAMETERS (XVECTOR (keys)->contents[next_event])) | |
dbc4e1c1 JB |
368 | break; |
369 | ||
42bb2790 | 370 | /* Handle special starting chars `*' and `@'. Also `-'. */ |
e92d107b | 371 | /* Note that `+' is reserved for user extensions. */ |
ec28a64d MB |
372 | while (1) |
373 | { | |
fb775602 | 374 | if (*string == '+') |
e92d107b RS |
375 | error ("`+' is not used in `interactive' for ordinary commands"); |
376 | else if (*string == '*') | |
ec28a64d MB |
377 | { |
378 | string++; | |
265a9e55 | 379 | if (!NILP (current_buffer->read_only)) |
ec28a64d MB |
380 | Fbarf_if_buffer_read_only (); |
381 | } | |
42bb2790 RS |
382 | /* Ignore this for semi-compatibility with Lucid. */ |
383 | else if (*string == '-') | |
384 | string++; | |
ec28a64d MB |
385 | else if (*string == '@') |
386 | { | |
86c1cf23 | 387 | Lisp_Object event; |
dbc4e1c1 | 388 | |
d455db8e | 389 | event = XVECTOR (keys)->contents[next_event]; |
dbc4e1c1 | 390 | if (EVENT_HAS_PARAMETERS (event) |
21ba0e68 | 391 | && (event = XCONS (event)->cdr, CONSP (event)) |
6e54b3de | 392 | && (event = XCONS (event)->car, CONSP (event)) |
a6d1245e | 393 | && (event = XCONS (event)->car, WINDOWP (event))) |
d1fa2e8a | 394 | { |
d68807fc | 395 | if (MINI_WINDOW_P (XWINDOW (event)) |
42bb2790 | 396 | && ! (minibuf_level > 0 && EQ (event, minibuf_window))) |
d1fa2e8a | 397 | error ("Attempt to select inactive minibuffer window"); |
ef2515c0 RS |
398 | |
399 | /* If the current buffer wants to clean up, let it. */ | |
400 | if (!NILP (Vmouse_leave_buffer_hook)) | |
401 | call1 (Vrun_hooks, Qmouse_leave_buffer_hook); | |
402 | ||
d1fa2e8a KH |
403 | Fselect_window (event); |
404 | } | |
ec28a64d | 405 | string++; |
ec28a64d MB |
406 | } |
407 | else break; | |
408 | } | |
409 | ||
410 | /* Count the number of arguments the interactive spec would have | |
411 | us give to the function. */ | |
412 | tem = string; | |
413 | for (j = 0; *tem; j++) | |
414 | { | |
415 | /* 'r' specifications ("point and mark as 2 numeric args") | |
416 | produce *two* arguments. */ | |
417 | if (*tem == 'r') j++; | |
418 | tem = (unsigned char *) index (tem, '\n'); | |
419 | if (tem) | |
420 | tem++; | |
421 | else | |
422 | tem = (unsigned char *) ""; | |
423 | } | |
6bc1abf2 | 424 | count = j; |
ec28a64d MB |
425 | |
426 | args = (Lisp_Object *) alloca ((count + 1) * sizeof (Lisp_Object)); | |
427 | visargs = (Lisp_Object *) alloca ((count + 1) * sizeof (Lisp_Object)); | |
428 | argstrings = (unsigned char **) alloca ((count + 1) * sizeof (char *)); | |
429 | varies = (int *) alloca ((count + 1) * sizeof (int)); | |
430 | ||
431 | for (i = 0; i < (count + 1); i++) | |
432 | { | |
433 | args[i] = Qnil; | |
434 | visargs[i] = Qnil; | |
435 | varies[i] = 0; | |
436 | } | |
437 | ||
438 | GCPRO4 (prefix_arg, function, *args, *visargs); | |
439 | gcpro3.nvars = (count + 1); | |
440 | gcpro4.nvars = (count + 1); | |
441 | ||
52614803 RS |
442 | if (!NILP (enable)) |
443 | specbind (Qenable_recursive_minibuffers, Qt); | |
444 | ||
ec28a64d | 445 | tem = string; |
6bc1abf2 | 446 | for (i = 1; *tem; i++) |
ec28a64d MB |
447 | { |
448 | strncpy (prompt1, tem + 1, sizeof prompt1 - 1); | |
449 | prompt1[sizeof prompt1 - 1] = 0; | |
450 | tem1 = index (prompt1, '\n'); | |
451 | if (tem1) *tem1 = 0; | |
452 | /* Fill argstrings with a vector of C strings | |
453 | corresponding to the Lisp strings in visargs. */ | |
454 | for (j = 1; j < i; j++) | |
455 | argstrings[j] | |
dc330139 RS |
456 | = (EQ (visargs[j], Qnil) |
457 | ? (unsigned char *) "" | |
458 | : XSTRING (visargs[j])->data); | |
ec28a64d | 459 | |
df31bc64 RS |
460 | /* Process the format-string in prompt1, putting the output |
461 | into callint_message. Make callint_message bigger if necessary. | |
462 | We don't use a buffer on the stack, because the contents | |
463 | need to stay stable for a while. */ | |
464 | while (1) | |
465 | { | |
466 | int nchars = doprnt (callint_message, callint_message_size, | |
467 | prompt1, (char *)0, | |
dc330139 | 468 | j - 1, (char **) argstrings + 1); |
df31bc64 RS |
469 | if (nchars < callint_message_size) |
470 | break; | |
471 | callint_message_size *= 2; | |
472 | callint_message | |
473 | = (char *) xrealloc (callint_message, callint_message_size); | |
474 | } | |
ec28a64d MB |
475 | |
476 | switch (*tem) | |
477 | { | |
478 | case 'a': /* Symbol defined as a function */ | |
df31bc64 | 479 | visargs[i] = Fcompleting_read (build_string (callint_message), |
ff9cd111 | 480 | Vobarray, Qfboundp, Qt, |
93fb51ae | 481 | Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
482 | /* Passing args[i] directly stimulates compiler bug */ |
483 | teml = visargs[i]; | |
484 | args[i] = Fintern (teml, Qnil); | |
485 | break; | |
486 | ||
487 | case 'b': /* Name of existing buffer */ | |
488 | args[i] = Fcurrent_buffer (); | |
489 | if (EQ (selected_window, minibuf_window)) | |
34c5d0ed | 490 | args[i] = Fother_buffer (args[i], Qnil, Qnil); |
df31bc64 | 491 | args[i] = Fread_buffer (build_string (callint_message), args[i], Qt); |
ec28a64d MB |
492 | break; |
493 | ||
494 | case 'B': /* Name of buffer, possibly nonexistent */ | |
df31bc64 | 495 | args[i] = Fread_buffer (build_string (callint_message), |
34c5d0ed | 496 | Fother_buffer (Fcurrent_buffer (), Qnil, Qnil), |
9262fcb6 | 497 | Qnil); |
ec28a64d MB |
498 | break; |
499 | ||
500 | case 'c': /* Character */ | |
24819c43 | 501 | args[i] = Fread_char (build_string (callint_message), Qt); |
453ed650 | 502 | message1_nolog ((char *) 0); |
ec28a64d MB |
503 | /* Passing args[i] directly stimulates compiler bug */ |
504 | teml = args[i]; | |
505 | visargs[i] = Fchar_to_string (teml); | |
506 | break; | |
507 | ||
508 | case 'C': /* Command: symbol with interactive function */ | |
df31bc64 | 509 | visargs[i] = Fcompleting_read (build_string (callint_message), |
ff9cd111 | 510 | Vobarray, Qcommandp, |
93fb51ae | 511 | Qt, Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
512 | /* Passing args[i] directly stimulates compiler bug */ |
513 | teml = visargs[i]; | |
514 | args[i] = Fintern (teml, Qnil); | |
515 | break; | |
516 | ||
517 | case 'd': /* Value of point. Does not do I/O. */ | |
dc330139 | 518 | set_marker_both (point_marker, Qnil, PT, PT_BYTE); |
824977b6 | 519 | args[i] = point_marker; |
ec28a64d MB |
520 | /* visargs[i] = Qnil; */ |
521 | varies[i] = 1; | |
522 | break; | |
523 | ||
ec28a64d | 524 | case 'D': /* Directory name. */ |
df31bc64 | 525 | args[i] = Fread_file_name (build_string (callint_message), Qnil, |
ec28a64d MB |
526 | current_buffer->directory, Qlambda, Qnil); |
527 | break; | |
528 | ||
529 | case 'f': /* Existing file name. */ | |
df31bc64 | 530 | args[i] = Fread_file_name (build_string (callint_message), |
ec28a64d MB |
531 | Qnil, Qnil, Qlambda, Qnil); |
532 | break; | |
533 | ||
534 | case 'F': /* Possibly nonexistent file name. */ | |
df31bc64 | 535 | args[i] = Fread_file_name (build_string (callint_message), |
ec28a64d MB |
536 | Qnil, Qnil, Qnil, Qnil); |
537 | break; | |
538 | ||
40b2421c KH |
539 | case 'i': /* Ignore an argument -- Does not do I/O */ |
540 | varies[i] = -1; | |
541 | break; | |
542 | ||
1989e7bc | 543 | case 'k': /* Key sequence. */ |
c631c234 RS |
544 | { |
545 | int speccount1 = specpdl_ptr - specpdl; | |
546 | specbind (Qcursor_in_echo_area, Qt); | |
547 | args[i] = Fread_key_sequence (build_string (callint_message), | |
ad4ac475 | 548 | Qnil, Qnil, Qnil, Qnil); |
c631c234 RS |
549 | unbind_to (speccount1, Qnil); |
550 | teml = args[i]; | |
551 | visargs[i] = Fkey_description (teml); | |
cdfac812 RS |
552 | |
553 | /* If the key sequence ends with a down-event, | |
554 | discard the following up-event. */ | |
555 | teml = Faref (args[i], make_number (XINT (Flength (args[i])) - 1)); | |
556 | if (CONSP (teml)) | |
557 | teml = XCONS (teml)->car; | |
558 | if (SYMBOLP (teml)) | |
559 | { | |
560 | Lisp_Object tem2; | |
561 | ||
562 | teml = Fget (teml, intern ("event-symbol-elements")); | |
563 | tem2 = Fmemq (intern ("down"), teml); | |
564 | if (! NILP (tem2)) | |
7a983715 | 565 | Fread_event (Qnil, Qnil); |
cdfac812 | 566 | } |
c631c234 | 567 | } |
1989e7bc RS |
568 | break; |
569 | ||
570 | case 'K': /* Key sequence to be defined. */ | |
c631c234 RS |
571 | { |
572 | int speccount1 = specpdl_ptr - specpdl; | |
573 | specbind (Qcursor_in_echo_area, Qt); | |
574 | args[i] = Fread_key_sequence (build_string (callint_message), | |
ad4ac475 | 575 | Qnil, Qt, Qnil, Qnil); |
c631c234 RS |
576 | teml = args[i]; |
577 | visargs[i] = Fkey_description (teml); | |
578 | unbind_to (speccount1, Qnil); | |
cdfac812 RS |
579 | |
580 | /* If the key sequence ends with a down-event, | |
581 | discard the following up-event. */ | |
582 | teml = Faref (args[i], make_number (XINT (Flength (args[i])) - 1)); | |
583 | if (CONSP (teml)) | |
584 | teml = XCONS (teml)->car; | |
585 | if (SYMBOLP (teml)) | |
586 | { | |
587 | Lisp_Object tem2; | |
588 | ||
589 | teml = Fget (teml, intern ("event-symbol-elements")); | |
590 | tem2 = Fmemq (intern ("down"), teml); | |
591 | if (! NILP (tem2)) | |
7a983715 | 592 | Fread_event (Qnil, Qnil); |
cdfac812 | 593 | } |
c631c234 | 594 | } |
ec28a64d MB |
595 | break; |
596 | ||
bc78232c | 597 | case 'e': /* The invoking event. */ |
d455db8e | 598 | if (next_event >= key_count) |
bc78232c | 599 | error ("%s must be bound to an event with parameters", |
6e54b3de | 600 | (SYMBOLP (function) |
63007de2 | 601 | ? (char *) XSYMBOL (function)->name->data |
bc78232c | 602 | : "command")); |
d455db8e | 603 | args[i] = XVECTOR (keys)->contents[next_event++]; |
e5d77022 | 604 | varies[i] = -1; |
dbc4e1c1 JB |
605 | |
606 | /* Find the next parameterized event. */ | |
d455db8e | 607 | while (next_event < key_count |
dbc4e1c1 | 608 | && ! (EVENT_HAS_PARAMETERS |
d455db8e | 609 | (XVECTOR (keys)->contents[next_event]))) |
dbc4e1c1 JB |
610 | next_event++; |
611 | ||
63007de2 JB |
612 | break; |
613 | ||
ec28a64d MB |
614 | case 'm': /* Value of mark. Does not do I/O. */ |
615 | check_mark (); | |
616 | /* visargs[i] = Qnil; */ | |
824977b6 | 617 | args[i] = current_buffer->mark; |
ec28a64d MB |
618 | varies[i] = 2; |
619 | break; | |
620 | ||
93fb51ae KH |
621 | case 'M': /* String read via minibuffer with |
622 | inheriting the current input method. */ | |
623 | args[i] = Fread_string (build_string (callint_message), | |
624 | Qnil, Qnil, Qnil, Qt); | |
625 | break; | |
626 | ||
ec28a64d | 627 | case 'N': /* Prefix arg, else number from minibuffer */ |
265a9e55 | 628 | if (!NILP (prefix_arg)) |
ec28a64d MB |
629 | goto have_prefix_arg; |
630 | case 'n': /* Read number from minibuffer. */ | |
f0490a0b RS |
631 | { |
632 | int first = 1; | |
633 | do | |
634 | { | |
635 | Lisp_Object tem; | |
636 | if (! first) | |
637 | { | |
638 | message ("Please enter a number."); | |
56fe6fc0 | 639 | sit_for (1, 0, 0, 0, 0); |
f0490a0b RS |
640 | } |
641 | first = 0; | |
642 | ||
643 | tem = Fread_from_minibuffer (build_string (callint_message), | |
93fb51ae KH |
644 | Qnil, Qnil, Qnil, Qnil, Qnil, |
645 | Qnil); | |
f0490a0b RS |
646 | if (! STRINGP (tem) || XSTRING (tem)->size == 0) |
647 | args[i] = Qnil; | |
648 | else | |
649 | args[i] = Fread (tem); | |
650 | } | |
651 | while (! NUMBERP (args[i])); | |
652 | } | |
ec28a64d MB |
653 | visargs[i] = last_minibuf_string; |
654 | break; | |
655 | ||
656 | case 'P': /* Prefix arg in raw form. Does no I/O. */ | |
ec28a64d MB |
657 | args[i] = prefix_arg; |
658 | /* visargs[i] = Qnil; */ | |
659 | varies[i] = -1; | |
660 | break; | |
661 | ||
662 | case 'p': /* Prefix arg converted to number. No I/O. */ | |
71eda2d5 | 663 | have_prefix_arg: |
ec28a64d MB |
664 | args[i] = Fprefix_numeric_value (prefix_arg); |
665 | /* visargs[i] = Qnil; */ | |
666 | varies[i] = -1; | |
667 | break; | |
668 | ||
669 | case 'r': /* Region, point and mark as 2 args. */ | |
670 | check_mark (); | |
dc330139 | 671 | set_marker_both (point_marker, Qnil, PT, PT_BYTE); |
ec28a64d MB |
672 | /* visargs[i+1] = Qnil; */ |
673 | foo = marker_position (current_buffer->mark); | |
674 | /* visargs[i] = Qnil; */ | |
6ec8bbd2 | 675 | args[i] = PT < foo ? point_marker : current_buffer->mark; |
ec28a64d | 676 | varies[i] = 3; |
6ec8bbd2 | 677 | args[++i] = PT > foo ? point_marker : current_buffer->mark; |
ec28a64d MB |
678 | varies[i] = 4; |
679 | break; | |
680 | ||
93fb51ae KH |
681 | case 's': /* String read via minibuffer without |
682 | inheriting the current input method. */ | |
55c4d99f | 683 | args[i] = Fread_string (build_string (callint_message), |
93fb51ae | 684 | Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
685 | break; |
686 | ||
687 | case 'S': /* Any symbol. */ | |
df31bc64 | 688 | visargs[i] = Fread_string (build_string (callint_message), |
93fb51ae | 689 | Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
690 | /* Passing args[i] directly stimulates compiler bug */ |
691 | teml = visargs[i]; | |
692 | args[i] = Fintern (teml, Qnil); | |
693 | break; | |
694 | ||
695 | case 'v': /* Variable name: symbol that is | |
696 | user-variable-p. */ | |
ff9cd111 | 697 | args[i] = Fread_variable (build_string (callint_message), Qnil); |
ec28a64d MB |
698 | visargs[i] = last_minibuf_string; |
699 | break; | |
700 | ||
701 | case 'x': /* Lisp expression read but not evaluated */ | |
df31bc64 | 702 | args[i] = Fread_minibuffer (build_string (callint_message), Qnil); |
ec28a64d MB |
703 | visargs[i] = last_minibuf_string; |
704 | break; | |
705 | ||
706 | case 'X': /* Lisp expression read and evaluated */ | |
df31bc64 | 707 | args[i] = Feval_minibuffer (build_string (callint_message), Qnil); |
ec28a64d MB |
708 | visargs[i] = last_minibuf_string; |
709 | break; | |
710 | ||
40b2421c KH |
711 | case 'Z': /* Coding-system symbol, or ignore the |
712 | argument if no prefix */ | |
713 | if (NILP (prefix_arg)) | |
714 | { | |
715 | args[i] = Qnil; | |
716 | varies[i] = -1; | |
717 | } | |
718 | else | |
719 | { | |
720 | args[i] | |
721 | = Fread_non_nil_coding_system (build_string (callint_message)); | |
722 | visargs[i] = last_minibuf_string; | |
723 | } | |
724 | break; | |
725 | ||
726 | case 'z': /* Coding-system symbol or nil */ | |
024d8713 | 727 | args[i] = Fread_coding_system (build_string (callint_message), Qnil); |
40b2421c KH |
728 | visargs[i] = last_minibuf_string; |
729 | break; | |
730 | ||
e92d107b RS |
731 | /* We have a case for `+' so we get an error |
732 | if anyone tries to define one here. */ | |
733 | case '+': | |
ec28a64d | 734 | default: |
e92d107b | 735 | error ("Invalid control letter `%c' (%03o) in interactive calling string", |
ec28a64d MB |
736 | *tem, *tem); |
737 | } | |
738 | ||
739 | if (varies[i] == 0) | |
740 | arg_from_tty = 1; | |
741 | ||
6e54b3de | 742 | if (NILP (visargs[i]) && STRINGP (args[i])) |
ec28a64d MB |
743 | visargs[i] = args[i]; |
744 | ||
745 | tem = (unsigned char *) index (tem, '\n'); | |
746 | if (tem) tem++; | |
747 | else tem = (unsigned char *) ""; | |
748 | } | |
52614803 | 749 | unbind_to (speccount, Qnil); |
ec28a64d MB |
750 | |
751 | QUIT; | |
752 | ||
753 | args[0] = function; | |
754 | ||
7868a977 | 755 | if (arg_from_tty || !NILP (record_flag)) |
ec28a64d MB |
756 | { |
757 | visargs[0] = function; | |
63007de2 | 758 | for (i = 1; i < count + 1; i++) |
824977b6 RS |
759 | { |
760 | if (varies[i] > 0) | |
761 | visargs[i] = Fcons (intern (callint_argfuns[varies[i]]), Qnil); | |
762 | else | |
763 | visargs[i] = quotify_arg (args[i]); | |
764 | } | |
ec28a64d MB |
765 | Vcommand_history = Fcons (Flist (count + 1, visargs), |
766 | Vcommand_history); | |
225c2157 RS |
767 | /* Don't keep command history around forever. */ |
768 | if (NUMBERP (Vhistory_length) && XINT (Vhistory_length) > 0) | |
769 | { | |
770 | teml = Fnthcdr (Vhistory_length, Vcommand_history); | |
771 | if (CONSP (teml)) | |
772 | XCONS (teml)->cdr = Qnil; | |
773 | } | |
ec28a64d MB |
774 | } |
775 | ||
824977b6 RS |
776 | /* If we used a marker to hold point, mark, or an end of the region, |
777 | temporarily, convert it to an integer now. */ | |
f4c8ded2 | 778 | for (i = 1; i <= count; i++) |
824977b6 RS |
779 | if (varies[i] >= 1 && varies[i] <= 4) |
780 | XSETINT (args[i], marker_position (args[i])); | |
781 | ||
652e2240 | 782 | single_kboard_state (); |
ebfbe249 | 783 | |
ec28a64d MB |
784 | { |
785 | Lisp_Object val; | |
ec28a64d MB |
786 | specbind (Qcommand_debug_status, Qnil); |
787 | ||
788 | val = Ffuncall (count + 1, args); | |
789 | UNGCPRO; | |
790 | return unbind_to (speccount, val); | |
791 | } | |
792 | } | |
793 | ||
794 | DEFUN ("prefix-numeric-value", Fprefix_numeric_value, Sprefix_numeric_value, | |
795 | 1, 1, 0, | |
7868a977 | 796 | "Return numeric meaning of raw prefix argument RAW.\n\ |
ec28a64d MB |
797 | A raw prefix argument is what you get from `(interactive \"P\")'.\n\ |
798 | Its numeric meaning is what you would get from `(interactive \"p\")'.") | |
799 | (raw) | |
800 | Lisp_Object raw; | |
801 | { | |
802 | Lisp_Object val; | |
803 | ||
265a9e55 | 804 | if (NILP (raw)) |
acab6442 | 805 | XSETFASTINT (val, 1); |
fd5285f3 | 806 | else if (EQ (raw, Qminus)) |
ec28a64d | 807 | XSETINT (val, -1); |
3399a477 | 808 | else if (CONSP (raw) && INTEGERP (XCONS (raw)->car)) |
ec28a64d | 809 | XSETINT (val, XINT (XCONS (raw)->car)); |
6e54b3de | 810 | else if (INTEGERP (raw)) |
ec28a64d MB |
811 | val = raw; |
812 | else | |
acab6442 | 813 | XSETFASTINT (val, 1); |
ec28a64d MB |
814 | |
815 | return val; | |
816 | } | |
817 | ||
dfcf069d | 818 | void |
ec28a64d MB |
819 | syms_of_callint () |
820 | { | |
824977b6 RS |
821 | point_marker = Fmake_marker (); |
822 | staticpro (&point_marker); | |
823 | ||
03e130d5 RS |
824 | preserved_fns = Fcons (intern ("region-beginning"), |
825 | Fcons (intern ("region-end"), | |
826 | Fcons (intern ("point"), | |
827 | Fcons (intern ("mark"), Qnil)))); | |
828 | staticpro (&preserved_fns); | |
829 | ||
830 | Qlist = intern ("list"); | |
831 | staticpro (&Qlist); | |
8450690a RS |
832 | Qlet = intern ("let"); |
833 | staticpro (&Qlet); | |
834 | Qletx = intern ("let*"); | |
835 | staticpro (&Qletx); | |
836 | Qsave_excursion = intern ("save-excursion"); | |
837 | staticpro (&Qsave_excursion); | |
03e130d5 | 838 | |
ec28a64d MB |
839 | Qminus = intern ("-"); |
840 | staticpro (&Qminus); | |
841 | ||
fdb4a38c RS |
842 | Qplus = intern ("+"); |
843 | staticpro (&Qplus); | |
844 | ||
ec28a64d MB |
845 | Qcall_interactively = intern ("call-interactively"); |
846 | staticpro (&Qcall_interactively); | |
847 | ||
848 | Qcommand_debug_status = intern ("command-debug-status"); | |
849 | staticpro (&Qcommand_debug_status); | |
850 | ||
52614803 RS |
851 | Qenable_recursive_minibuffers = intern ("enable-recursive-minibuffers"); |
852 | staticpro (&Qenable_recursive_minibuffers); | |
853 | ||
ef2515c0 RS |
854 | Qmouse_leave_buffer_hook = intern ("mouse-leave-buffer-hook"); |
855 | staticpro (&Qmouse_leave_buffer_hook); | |
856 | ||
df31bc64 RS |
857 | callint_message_size = 100; |
858 | callint_message = (char *) xmalloc (callint_message_size); | |
859 | ||
860 | ||
1e0c5826 | 861 | DEFVAR_KBOARD ("prefix-arg", Vprefix_arg, |
8c917bf2 KH |
862 | "The value of the prefix argument for the next editing command.\n\ |
863 | It may be a number, or the symbol `-' for just a minus sign as arg,\n\ | |
864 | or a list whose car is a number for just one or more C-U's\n\ | |
865 | or nil if no argument has been specified.\n\ | |
866 | \n\ | |
867 | You cannot examine this variable to find the argument for this command\n\ | |
868 | since it has been set to nil by the time you can look.\n\ | |
869 | Instead, you should use the variable `current-prefix-arg', although\n\ | |
870 | normally commands can get this prefix argument with (interactive \"P\")."); | |
8c917bf2 | 871 | |
fe3fbdcc RS |
872 | DEFVAR_KBOARD ("last-prefix-arg", Vlast_prefix_arg, |
873 | "The value of the prefix argument for the previous editing command.\n\ | |
874 | See `prefix-arg' for the meaning of the value."); | |
875 | ||
8c917bf2 KH |
876 | DEFVAR_LISP ("current-prefix-arg", &Vcurrent_prefix_arg, |
877 | "The value of the prefix argument for this editing command.\n\ | |
878 | It may be a number, or the symbol `-' for just a minus sign as arg,\n\ | |
879 | or a list whose car is a number for just one or more C-U's\n\ | |
880 | or nil if no argument has been specified.\n\ | |
881 | This is what `(interactive \"P\")' returns."); | |
882 | Vcurrent_prefix_arg = Qnil; | |
883 | ||
ec28a64d MB |
884 | DEFVAR_LISP ("command-history", &Vcommand_history, |
885 | "List of recent commands that read arguments from terminal.\n\ | |
886 | Each command is represented as a form to evaluate."); | |
887 | Vcommand_history = Qnil; | |
888 | ||
889 | DEFVAR_LISP ("command-debug-status", &Vcommand_debug_status, | |
890 | "Debugging status of current interactive command.\n\ | |
891 | Bound each time `call-interactively' is called;\n\ | |
892 | may be set by the debugger as a reminder for itself."); | |
893 | Vcommand_debug_status = Qnil; | |
894 | ||
2ad6c959 | 895 | DEFVAR_LISP ("mark-even-if-inactive", &Vmark_even_if_inactive, |
9f315aeb RS |
896 | "*Non-nil means you can use the mark even when inactive.\n\ |
897 | This option makes a difference in Transient Mark mode.\n\ | |
898 | When the option is non-nil, deactivation of the mark\n\ | |
899 | turns off region highlighting, but commands that use the mark\n\ | |
900 | behave as if the mark were still active."); | |
901 | Vmark_even_if_inactive = Qnil; | |
902 | ||
ef2515c0 RS |
903 | DEFVAR_LISP ("mouse-leave-buffer-hook", &Vmouse_leave_buffer_hook, |
904 | "Hook to run when about to switch windows with a mouse command.\n\ | |
905 | Its purpose is to give temporary modes such as Isearch mode\n\ | |
906 | a way to turn themselves off when a mouse command switches windows."); | |
907 | Vmouse_leave_buffer_hook = Qnil; | |
908 | ||
ec28a64d MB |
909 | defsubr (&Sinteractive); |
910 | defsubr (&Scall_interactively); | |
911 | defsubr (&Sprefix_numeric_value); | |
912 | } |