Commit | Line | Data |
---|---|---|
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; | |
7539e11f KR |
151 | Lisp_Object next; |
152 | for (tail = exp; CONSP (tail); tail = next) | |
ec28a64d | 153 | { |
7539e11f KR |
154 | next = XCDR (tail); |
155 | XCAR (tail) = quotify_arg (XCAR (tail)); | |
ec28a64d MB |
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\ | |
824b5cfc DL |
186 | Otherwise, this is done only if an arg is read using the minibuffer.\n\ |
187 | Optional third arg KEYS, if given, specifies the sequence of events to\n\ | |
188 | supply if the command inquires which events were used to invoke it.") | |
7868a977 EN |
189 | (function, record_flag, keys) |
190 | Lisp_Object function, record_flag, keys; | |
ec28a64d MB |
191 | { |
192 | Lisp_Object *args, *visargs; | |
193 | unsigned char **argstrings; | |
194 | Lisp_Object fun; | |
195 | Lisp_Object funcar; | |
196 | Lisp_Object specs; | |
197 | Lisp_Object teml; | |
52614803 RS |
198 | Lisp_Object enable; |
199 | int speccount = specpdl_ptr - specpdl; | |
ec28a64d | 200 | |
bc78232c JB |
201 | /* The index of the next element of this_command_keys to examine for |
202 | the 'e' interactive code. */ | |
dbc4e1c1 | 203 | int next_event; |
bc78232c | 204 | |
ec28a64d MB |
205 | Lisp_Object prefix_arg; |
206 | unsigned char *string; | |
207 | unsigned char *tem; | |
63007de2 JB |
208 | |
209 | /* If varies[i] > 0, the i'th argument shouldn't just have its value | |
210 | in this call quoted in the command history. It should be | |
211 | recorded as a call to the function named callint_argfuns[varies[i]]. */ | |
ec28a64d | 212 | int *varies; |
63007de2 | 213 | |
ec28a64d MB |
214 | register int i, j; |
215 | int count, foo; | |
ec28a64d MB |
216 | char prompt1[100]; |
217 | char *tem1; | |
218 | int arg_from_tty = 0; | |
219 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
d455db8e RS |
220 | int key_count; |
221 | ||
222 | if (NILP (keys)) | |
223 | keys = this_command_keys, key_count = this_command_key_count; | |
224 | else | |
225 | { | |
226 | CHECK_VECTOR (keys, 3); | |
227 | key_count = XVECTOR (keys)->size; | |
228 | } | |
ec28a64d | 229 | |
e5d77022 | 230 | /* Save this now, since use of minibuffer will clobber it. */ |
8c917bf2 | 231 | prefix_arg = Vcurrent_prefix_arg; |
ec28a64d | 232 | |
46947372 | 233 | retry: |
ec28a64d | 234 | |
6e54b3de | 235 | if (SYMBOLP (function)) |
afa4c0f3 | 236 | enable = Fget (function, Qenable_recursive_minibuffers); |
52614803 | 237 | |
ffd56f97 | 238 | fun = indirect_function (function); |
ec28a64d MB |
239 | |
240 | specs = Qnil; | |
241 | string = 0; | |
242 | ||
243 | /* Decode the kind of function. Either handle it and return, | |
244 | or go to `lose' if not interactive, or go to `retry' | |
245 | to specify a different function, or set either STRING or SPECS. */ | |
246 | ||
6e54b3de | 247 | if (SUBRP (fun)) |
ec28a64d MB |
248 | { |
249 | string = (unsigned char *) XSUBR (fun)->prompt; | |
250 | if (!string) | |
251 | { | |
252 | lose: | |
b37902c8 | 253 | function = wrong_type_argument (Qcommandp, function); |
ec28a64d MB |
254 | goto retry; |
255 | } | |
132b9337 | 256 | if ((EMACS_INT) string == 1) |
ec28a64d MB |
257 | /* Let SPECS (which is nil) be used as the args. */ |
258 | string = 0; | |
259 | } | |
6e54b3de | 260 | else if (COMPILEDP (fun)) |
ec28a64d | 261 | { |
f9b4aacf | 262 | if ((XVECTOR (fun)->size & PSEUDOVECTOR_SIZE_MASK) <= COMPILED_INTERACTIVE) |
ec28a64d MB |
263 | goto lose; |
264 | specs = XVECTOR (fun)->contents[COMPILED_INTERACTIVE]; | |
265 | } | |
266 | else if (!CONSP (fun)) | |
267 | goto lose; | |
268 | else if (funcar = Fcar (fun), EQ (funcar, Qautoload)) | |
269 | { | |
270 | GCPRO2 (function, prefix_arg); | |
271 | do_autoload (fun, function); | |
272 | UNGCPRO; | |
273 | goto retry; | |
274 | } | |
275 | else if (EQ (funcar, Qlambda)) | |
276 | { | |
277 | specs = Fassq (Qinteractive, Fcdr (Fcdr (fun))); | |
265a9e55 | 278 | if (NILP (specs)) |
ec28a64d MB |
279 | goto lose; |
280 | specs = Fcar (Fcdr (specs)); | |
281 | } | |
282 | else if (EQ (funcar, Qmocklisp)) | |
887e0cba | 283 | { |
652e2240 | 284 | single_kboard_state (); |
887e0cba KH |
285 | return ml_apply (fun, Qinteractive); |
286 | } | |
ec28a64d MB |
287 | else |
288 | goto lose; | |
289 | ||
46947372 | 290 | /* If either specs or string is set to a string, use it. */ |
6e54b3de | 291 | if (STRINGP (specs)) |
46947372 JB |
292 | { |
293 | /* Make a copy of string so that if a GC relocates specs, | |
294 | `string' will still be valid. */ | |
fc932ac6 RS |
295 | string = (unsigned char *) alloca (STRING_BYTES (XSTRING (specs)) + 1); |
296 | bcopy (XSTRING (specs)->data, string, | |
297 | STRING_BYTES (XSTRING (specs)) + 1); | |
46947372 | 298 | } |
ec28a64d MB |
299 | else if (string == 0) |
300 | { | |
03e130d5 | 301 | Lisp_Object input; |
91a6ba78 | 302 | i = num_input_events; |
03e130d5 RS |
303 | input = specs; |
304 | /* Compute the arg values using the user's expression. */ | |
6bc1abf2 | 305 | specs = Feval (specs); |
91a6ba78 | 306 | if (i != num_input_events || !NILP (record_flag)) |
03e130d5 RS |
307 | { |
308 | /* We should record this command on the command history. */ | |
309 | Lisp_Object values, car; | |
310 | /* Make a copy of the list of values, for the command history, | |
311 | and turn them into things we can eval. */ | |
312 | values = quotify_args (Fcopy_sequence (specs)); | |
313 | /* If the list of args was produced with an explicit call to `list', | |
314 | look for elements that were computed with (region-beginning) | |
315 | or (region-end), and put those expressions into VALUES | |
316 | instead of the present values. */ | |
8450690a | 317 | if (CONSP (input)) |
03e130d5 | 318 | { |
70949dac | 319 | car = XCAR (input); |
8450690a RS |
320 | /* Skip through certain special forms. */ |
321 | while (EQ (car, Qlet) || EQ (car, Qletx) | |
322 | || EQ (car, Qsave_excursion)) | |
03e130d5 | 323 | { |
70949dac KR |
324 | while (CONSP (XCDR (input))) |
325 | input = XCDR (input); | |
326 | input = XCAR (input); | |
8450690a RS |
327 | if (!CONSP (input)) |
328 | break; | |
70949dac | 329 | car = XCAR (input); |
8450690a RS |
330 | } |
331 | if (EQ (car, Qlist)) | |
332 | { | |
333 | Lisp_Object intail, valtail; | |
334 | for (intail = Fcdr (input), valtail = values; | |
335 | CONSP (valtail); | |
336 | intail = Fcdr (intail), valtail = Fcdr (valtail)) | |
03e130d5 | 337 | { |
8450690a RS |
338 | Lisp_Object elt; |
339 | elt = Fcar (intail); | |
340 | if (CONSP (elt)) | |
341 | { | |
342 | Lisp_Object presflag; | |
343 | presflag = Fmemq (Fcar (elt), preserved_fns); | |
344 | if (!NILP (presflag)) | |
345 | Fsetcar (valtail, Fcar (intail)); | |
346 | } | |
03e130d5 RS |
347 | } |
348 | } | |
349 | } | |
350 | Vcommand_history | |
351 | = Fcons (Fcons (function, values), Vcommand_history); | |
225c2157 RS |
352 | |
353 | /* Don't keep command history around forever. */ | |
354 | if (NUMBERP (Vhistory_length) && XINT (Vhistory_length) > 0) | |
355 | { | |
356 | teml = Fnthcdr (Vhistory_length, Vcommand_history); | |
357 | if (CONSP (teml)) | |
70949dac | 358 | XCDR (teml) = Qnil; |
225c2157 | 359 | } |
03e130d5 | 360 | } |
652e2240 | 361 | single_kboard_state (); |
ec28a64d MB |
362 | return apply1 (function, specs); |
363 | } | |
364 | ||
365 | /* Here if function specifies a string to control parsing the defaults */ | |
366 | ||
dbc4e1c1 | 367 | /* Set next_event to point to the first event with parameters. */ |
d455db8e RS |
368 | for (next_event = 0; next_event < key_count; next_event++) |
369 | if (EVENT_HAS_PARAMETERS (XVECTOR (keys)->contents[next_event])) | |
dbc4e1c1 JB |
370 | break; |
371 | ||
42bb2790 | 372 | /* Handle special starting chars `*' and `@'. Also `-'. */ |
e92d107b | 373 | /* Note that `+' is reserved for user extensions. */ |
ec28a64d MB |
374 | while (1) |
375 | { | |
fb775602 | 376 | if (*string == '+') |
e92d107b RS |
377 | error ("`+' is not used in `interactive' for ordinary commands"); |
378 | else if (*string == '*') | |
ec28a64d MB |
379 | { |
380 | string++; | |
265a9e55 | 381 | if (!NILP (current_buffer->read_only)) |
ec28a64d MB |
382 | Fbarf_if_buffer_read_only (); |
383 | } | |
42bb2790 RS |
384 | /* Ignore this for semi-compatibility with Lucid. */ |
385 | else if (*string == '-') | |
386 | string++; | |
ec28a64d MB |
387 | else if (*string == '@') |
388 | { | |
86c1cf23 | 389 | Lisp_Object event; |
dbc4e1c1 | 390 | |
d455db8e | 391 | event = XVECTOR (keys)->contents[next_event]; |
dbc4e1c1 | 392 | if (EVENT_HAS_PARAMETERS (event) |
70949dac KR |
393 | && (event = XCDR (event), CONSP (event)) |
394 | && (event = XCAR (event), CONSP (event)) | |
395 | && (event = XCAR (event), WINDOWP (event))) | |
d1fa2e8a | 396 | { |
d68807fc | 397 | if (MINI_WINDOW_P (XWINDOW (event)) |
42bb2790 | 398 | && ! (minibuf_level > 0 && EQ (event, minibuf_window))) |
d1fa2e8a | 399 | error ("Attempt to select inactive minibuffer window"); |
ef2515c0 RS |
400 | |
401 | /* If the current buffer wants to clean up, let it. */ | |
402 | if (!NILP (Vmouse_leave_buffer_hook)) | |
403 | call1 (Vrun_hooks, Qmouse_leave_buffer_hook); | |
404 | ||
d1fa2e8a KH |
405 | Fselect_window (event); |
406 | } | |
ec28a64d | 407 | string++; |
ec28a64d MB |
408 | } |
409 | else break; | |
410 | } | |
411 | ||
412 | /* Count the number of arguments the interactive spec would have | |
413 | us give to the function. */ | |
414 | tem = string; | |
415 | for (j = 0; *tem; j++) | |
416 | { | |
417 | /* 'r' specifications ("point and mark as 2 numeric args") | |
418 | produce *two* arguments. */ | |
419 | if (*tem == 'r') j++; | |
420 | tem = (unsigned char *) index (tem, '\n'); | |
421 | if (tem) | |
422 | tem++; | |
423 | else | |
424 | tem = (unsigned char *) ""; | |
425 | } | |
6bc1abf2 | 426 | count = j; |
ec28a64d MB |
427 | |
428 | args = (Lisp_Object *) alloca ((count + 1) * sizeof (Lisp_Object)); | |
429 | visargs = (Lisp_Object *) alloca ((count + 1) * sizeof (Lisp_Object)); | |
430 | argstrings = (unsigned char **) alloca ((count + 1) * sizeof (char *)); | |
431 | varies = (int *) alloca ((count + 1) * sizeof (int)); | |
432 | ||
433 | for (i = 0; i < (count + 1); i++) | |
434 | { | |
435 | args[i] = Qnil; | |
436 | visargs[i] = Qnil; | |
437 | varies[i] = 0; | |
438 | } | |
439 | ||
440 | GCPRO4 (prefix_arg, function, *args, *visargs); | |
441 | gcpro3.nvars = (count + 1); | |
442 | gcpro4.nvars = (count + 1); | |
443 | ||
52614803 RS |
444 | if (!NILP (enable)) |
445 | specbind (Qenable_recursive_minibuffers, Qt); | |
446 | ||
ec28a64d | 447 | tem = string; |
6bc1abf2 | 448 | for (i = 1; *tem; i++) |
ec28a64d MB |
449 | { |
450 | strncpy (prompt1, tem + 1, sizeof prompt1 - 1); | |
451 | prompt1[sizeof prompt1 - 1] = 0; | |
452 | tem1 = index (prompt1, '\n'); | |
453 | if (tem1) *tem1 = 0; | |
454 | /* Fill argstrings with a vector of C strings | |
455 | corresponding to the Lisp strings in visargs. */ | |
456 | for (j = 1; j < i; j++) | |
457 | argstrings[j] | |
dc330139 RS |
458 | = (EQ (visargs[j], Qnil) |
459 | ? (unsigned char *) "" | |
460 | : XSTRING (visargs[j])->data); | |
ec28a64d | 461 | |
df31bc64 RS |
462 | /* Process the format-string in prompt1, putting the output |
463 | into callint_message. Make callint_message bigger if necessary. | |
464 | We don't use a buffer on the stack, because the contents | |
465 | need to stay stable for a while. */ | |
466 | while (1) | |
467 | { | |
468 | int nchars = doprnt (callint_message, callint_message_size, | |
469 | prompt1, (char *)0, | |
dc330139 | 470 | j - 1, (char **) argstrings + 1); |
df31bc64 RS |
471 | if (nchars < callint_message_size) |
472 | break; | |
473 | callint_message_size *= 2; | |
474 | callint_message | |
475 | = (char *) xrealloc (callint_message, callint_message_size); | |
476 | } | |
ec28a64d MB |
477 | |
478 | switch (*tem) | |
479 | { | |
480 | case 'a': /* Symbol defined as a function */ | |
df31bc64 | 481 | visargs[i] = Fcompleting_read (build_string (callint_message), |
ff9cd111 | 482 | Vobarray, Qfboundp, Qt, |
93fb51ae | 483 | Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
484 | /* Passing args[i] directly stimulates compiler bug */ |
485 | teml = visargs[i]; | |
486 | args[i] = Fintern (teml, Qnil); | |
487 | break; | |
488 | ||
489 | case 'b': /* Name of existing buffer */ | |
490 | args[i] = Fcurrent_buffer (); | |
491 | if (EQ (selected_window, minibuf_window)) | |
34c5d0ed | 492 | args[i] = Fother_buffer (args[i], Qnil, Qnil); |
df31bc64 | 493 | args[i] = Fread_buffer (build_string (callint_message), args[i], Qt); |
ec28a64d MB |
494 | break; |
495 | ||
496 | case 'B': /* Name of buffer, possibly nonexistent */ | |
df31bc64 | 497 | args[i] = Fread_buffer (build_string (callint_message), |
34c5d0ed | 498 | Fother_buffer (Fcurrent_buffer (), Qnil, Qnil), |
9262fcb6 | 499 | Qnil); |
ec28a64d MB |
500 | break; |
501 | ||
502 | case 'c': /* Character */ | |
562e4a4f | 503 | args[i] = Fread_char (build_string (callint_message), Qnil); |
453ed650 | 504 | message1_nolog ((char *) 0); |
ec28a64d MB |
505 | /* Passing args[i] directly stimulates compiler bug */ |
506 | teml = args[i]; | |
507 | visargs[i] = Fchar_to_string (teml); | |
508 | break; | |
509 | ||
510 | case 'C': /* Command: symbol with interactive function */ | |
df31bc64 | 511 | visargs[i] = Fcompleting_read (build_string (callint_message), |
ff9cd111 | 512 | Vobarray, Qcommandp, |
93fb51ae | 513 | Qt, Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
514 | /* Passing args[i] directly stimulates compiler bug */ |
515 | teml = visargs[i]; | |
516 | args[i] = Fintern (teml, Qnil); | |
517 | break; | |
518 | ||
519 | case 'd': /* Value of point. Does not do I/O. */ | |
dc330139 | 520 | set_marker_both (point_marker, Qnil, PT, PT_BYTE); |
824977b6 | 521 | args[i] = point_marker; |
ec28a64d MB |
522 | /* visargs[i] = Qnil; */ |
523 | varies[i] = 1; | |
524 | break; | |
525 | ||
ec28a64d | 526 | case 'D': /* Directory name. */ |
df31bc64 | 527 | args[i] = Fread_file_name (build_string (callint_message), Qnil, |
ec28a64d MB |
528 | current_buffer->directory, Qlambda, Qnil); |
529 | break; | |
530 | ||
531 | case 'f': /* Existing file name. */ | |
df31bc64 | 532 | args[i] = Fread_file_name (build_string (callint_message), |
ec28a64d MB |
533 | Qnil, Qnil, Qlambda, Qnil); |
534 | break; | |
535 | ||
536 | case 'F': /* Possibly nonexistent file name. */ | |
df31bc64 | 537 | args[i] = Fread_file_name (build_string (callint_message), |
ec28a64d MB |
538 | Qnil, Qnil, Qnil, Qnil); |
539 | break; | |
540 | ||
40b2421c KH |
541 | case 'i': /* Ignore an argument -- Does not do I/O */ |
542 | varies[i] = -1; | |
543 | break; | |
544 | ||
1989e7bc | 545 | case 'k': /* Key sequence. */ |
c631c234 RS |
546 | { |
547 | int speccount1 = specpdl_ptr - specpdl; | |
548 | specbind (Qcursor_in_echo_area, Qt); | |
549 | args[i] = Fread_key_sequence (build_string (callint_message), | |
ad4ac475 | 550 | Qnil, Qnil, Qnil, Qnil); |
c631c234 RS |
551 | unbind_to (speccount1, Qnil); |
552 | teml = args[i]; | |
553 | visargs[i] = Fkey_description (teml); | |
cdfac812 RS |
554 | |
555 | /* If the key sequence ends with a down-event, | |
556 | discard the following up-event. */ | |
557 | teml = Faref (args[i], make_number (XINT (Flength (args[i])) - 1)); | |
558 | if (CONSP (teml)) | |
70949dac | 559 | teml = XCAR (teml); |
cdfac812 RS |
560 | if (SYMBOLP (teml)) |
561 | { | |
562 | Lisp_Object tem2; | |
563 | ||
564 | teml = Fget (teml, intern ("event-symbol-elements")); | |
4b27f17c AS |
565 | /* Ignore first element, which is the base key. */ |
566 | tem2 = Fmemq (intern ("down"), Fcdr (teml)); | |
cdfac812 | 567 | if (! NILP (tem2)) |
7a983715 | 568 | Fread_event (Qnil, Qnil); |
cdfac812 | 569 | } |
c631c234 | 570 | } |
1989e7bc RS |
571 | break; |
572 | ||
573 | case 'K': /* Key sequence to be defined. */ | |
c631c234 RS |
574 | { |
575 | int speccount1 = specpdl_ptr - specpdl; | |
576 | specbind (Qcursor_in_echo_area, Qt); | |
577 | args[i] = Fread_key_sequence (build_string (callint_message), | |
ad4ac475 | 578 | Qnil, Qt, Qnil, Qnil); |
c631c234 RS |
579 | teml = args[i]; |
580 | visargs[i] = Fkey_description (teml); | |
581 | unbind_to (speccount1, Qnil); | |
cdfac812 RS |
582 | |
583 | /* If the key sequence ends with a down-event, | |
584 | discard the following up-event. */ | |
585 | teml = Faref (args[i], make_number (XINT (Flength (args[i])) - 1)); | |
586 | if (CONSP (teml)) | |
70949dac | 587 | teml = XCAR (teml); |
cdfac812 RS |
588 | if (SYMBOLP (teml)) |
589 | { | |
590 | Lisp_Object tem2; | |
591 | ||
592 | teml = Fget (teml, intern ("event-symbol-elements")); | |
4b27f17c AS |
593 | /* Ignore first element, which is the base key. */ |
594 | tem2 = Fmemq (intern ("down"), Fcdr (teml)); | |
cdfac812 | 595 | if (! NILP (tem2)) |
7a983715 | 596 | Fread_event (Qnil, Qnil); |
cdfac812 | 597 | } |
c631c234 | 598 | } |
ec28a64d MB |
599 | break; |
600 | ||
bc78232c | 601 | case 'e': /* The invoking event. */ |
d455db8e | 602 | if (next_event >= key_count) |
bc78232c | 603 | error ("%s must be bound to an event with parameters", |
6e54b3de | 604 | (SYMBOLP (function) |
63007de2 | 605 | ? (char *) XSYMBOL (function)->name->data |
bc78232c | 606 | : "command")); |
d455db8e | 607 | args[i] = XVECTOR (keys)->contents[next_event++]; |
e5d77022 | 608 | varies[i] = -1; |
dbc4e1c1 JB |
609 | |
610 | /* Find the next parameterized event. */ | |
d455db8e | 611 | while (next_event < key_count |
dbc4e1c1 | 612 | && ! (EVENT_HAS_PARAMETERS |
d455db8e | 613 | (XVECTOR (keys)->contents[next_event]))) |
dbc4e1c1 JB |
614 | next_event++; |
615 | ||
63007de2 JB |
616 | break; |
617 | ||
ec28a64d MB |
618 | case 'm': /* Value of mark. Does not do I/O. */ |
619 | check_mark (); | |
620 | /* visargs[i] = Qnil; */ | |
824977b6 | 621 | args[i] = current_buffer->mark; |
ec28a64d MB |
622 | varies[i] = 2; |
623 | break; | |
624 | ||
93fb51ae KH |
625 | case 'M': /* String read via minibuffer with |
626 | inheriting the current input method. */ | |
627 | args[i] = Fread_string (build_string (callint_message), | |
628 | Qnil, Qnil, Qnil, Qt); | |
629 | break; | |
630 | ||
ec28a64d | 631 | case 'N': /* Prefix arg, else number from minibuffer */ |
265a9e55 | 632 | if (!NILP (prefix_arg)) |
ec28a64d MB |
633 | goto have_prefix_arg; |
634 | case 'n': /* Read number from minibuffer. */ | |
f0490a0b RS |
635 | { |
636 | int first = 1; | |
637 | do | |
638 | { | |
639 | Lisp_Object tem; | |
640 | if (! first) | |
641 | { | |
642 | message ("Please enter a number."); | |
56fe6fc0 | 643 | sit_for (1, 0, 0, 0, 0); |
f0490a0b RS |
644 | } |
645 | first = 0; | |
646 | ||
647 | tem = Fread_from_minibuffer (build_string (callint_message), | |
93fb51ae KH |
648 | Qnil, Qnil, Qnil, Qnil, Qnil, |
649 | Qnil); | |
f0490a0b RS |
650 | if (! STRINGP (tem) || XSTRING (tem)->size == 0) |
651 | args[i] = Qnil; | |
652 | else | |
653 | args[i] = Fread (tem); | |
654 | } | |
655 | while (! NUMBERP (args[i])); | |
656 | } | |
ec28a64d MB |
657 | visargs[i] = last_minibuf_string; |
658 | break; | |
659 | ||
660 | case 'P': /* Prefix arg in raw form. Does no I/O. */ | |
ec28a64d MB |
661 | args[i] = prefix_arg; |
662 | /* visargs[i] = Qnil; */ | |
663 | varies[i] = -1; | |
664 | break; | |
665 | ||
666 | case 'p': /* Prefix arg converted to number. No I/O. */ | |
71eda2d5 | 667 | have_prefix_arg: |
ec28a64d MB |
668 | args[i] = Fprefix_numeric_value (prefix_arg); |
669 | /* visargs[i] = Qnil; */ | |
670 | varies[i] = -1; | |
671 | break; | |
672 | ||
673 | case 'r': /* Region, point and mark as 2 args. */ | |
674 | check_mark (); | |
dc330139 | 675 | set_marker_both (point_marker, Qnil, PT, PT_BYTE); |
ec28a64d MB |
676 | /* visargs[i+1] = Qnil; */ |
677 | foo = marker_position (current_buffer->mark); | |
678 | /* visargs[i] = Qnil; */ | |
6ec8bbd2 | 679 | args[i] = PT < foo ? point_marker : current_buffer->mark; |
ec28a64d | 680 | varies[i] = 3; |
6ec8bbd2 | 681 | args[++i] = PT > foo ? point_marker : current_buffer->mark; |
ec28a64d MB |
682 | varies[i] = 4; |
683 | break; | |
684 | ||
93fb51ae KH |
685 | case 's': /* String read via minibuffer without |
686 | inheriting the current input method. */ | |
55c4d99f | 687 | args[i] = Fread_string (build_string (callint_message), |
93fb51ae | 688 | Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
689 | break; |
690 | ||
691 | case 'S': /* Any symbol. */ | |
df31bc64 | 692 | visargs[i] = Fread_string (build_string (callint_message), |
93fb51ae | 693 | Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
694 | /* Passing args[i] directly stimulates compiler bug */ |
695 | teml = visargs[i]; | |
696 | args[i] = Fintern (teml, Qnil); | |
697 | break; | |
698 | ||
699 | case 'v': /* Variable name: symbol that is | |
700 | user-variable-p. */ | |
ff9cd111 | 701 | args[i] = Fread_variable (build_string (callint_message), Qnil); |
ec28a64d MB |
702 | visargs[i] = last_minibuf_string; |
703 | break; | |
704 | ||
705 | case 'x': /* Lisp expression read but not evaluated */ | |
df31bc64 | 706 | args[i] = Fread_minibuffer (build_string (callint_message), Qnil); |
ec28a64d MB |
707 | visargs[i] = last_minibuf_string; |
708 | break; | |
709 | ||
710 | case 'X': /* Lisp expression read and evaluated */ | |
df31bc64 | 711 | args[i] = Feval_minibuffer (build_string (callint_message), Qnil); |
ec28a64d MB |
712 | visargs[i] = last_minibuf_string; |
713 | break; | |
714 | ||
40b2421c KH |
715 | case 'Z': /* Coding-system symbol, or ignore the |
716 | argument if no prefix */ | |
717 | if (NILP (prefix_arg)) | |
718 | { | |
719 | args[i] = Qnil; | |
720 | varies[i] = -1; | |
721 | } | |
722 | else | |
723 | { | |
724 | args[i] | |
725 | = Fread_non_nil_coding_system (build_string (callint_message)); | |
726 | visargs[i] = last_minibuf_string; | |
727 | } | |
728 | break; | |
729 | ||
730 | case 'z': /* Coding-system symbol or nil */ | |
024d8713 | 731 | args[i] = Fread_coding_system (build_string (callint_message), Qnil); |
40b2421c KH |
732 | visargs[i] = last_minibuf_string; |
733 | break; | |
734 | ||
e92d107b RS |
735 | /* We have a case for `+' so we get an error |
736 | if anyone tries to define one here. */ | |
737 | case '+': | |
ec28a64d | 738 | default: |
e92d107b | 739 | error ("Invalid control letter `%c' (%03o) in interactive calling string", |
ec28a64d MB |
740 | *tem, *tem); |
741 | } | |
742 | ||
743 | if (varies[i] == 0) | |
744 | arg_from_tty = 1; | |
745 | ||
6e54b3de | 746 | if (NILP (visargs[i]) && STRINGP (args[i])) |
ec28a64d MB |
747 | visargs[i] = args[i]; |
748 | ||
749 | tem = (unsigned char *) index (tem, '\n'); | |
750 | if (tem) tem++; | |
751 | else tem = (unsigned char *) ""; | |
752 | } | |
52614803 | 753 | unbind_to (speccount, Qnil); |
ec28a64d MB |
754 | |
755 | QUIT; | |
756 | ||
757 | args[0] = function; | |
758 | ||
7868a977 | 759 | if (arg_from_tty || !NILP (record_flag)) |
ec28a64d MB |
760 | { |
761 | visargs[0] = function; | |
63007de2 | 762 | for (i = 1; i < count + 1; i++) |
824977b6 RS |
763 | { |
764 | if (varies[i] > 0) | |
765 | visargs[i] = Fcons (intern (callint_argfuns[varies[i]]), Qnil); | |
766 | else | |
767 | visargs[i] = quotify_arg (args[i]); | |
768 | } | |
ec28a64d MB |
769 | Vcommand_history = Fcons (Flist (count + 1, visargs), |
770 | Vcommand_history); | |
225c2157 RS |
771 | /* Don't keep command history around forever. */ |
772 | if (NUMBERP (Vhistory_length) && XINT (Vhistory_length) > 0) | |
773 | { | |
774 | teml = Fnthcdr (Vhistory_length, Vcommand_history); | |
775 | if (CONSP (teml)) | |
70949dac | 776 | XCDR (teml) = Qnil; |
225c2157 | 777 | } |
ec28a64d MB |
778 | } |
779 | ||
824977b6 RS |
780 | /* If we used a marker to hold point, mark, or an end of the region, |
781 | temporarily, convert it to an integer now. */ | |
f4c8ded2 | 782 | for (i = 1; i <= count; i++) |
824977b6 RS |
783 | if (varies[i] >= 1 && varies[i] <= 4) |
784 | XSETINT (args[i], marker_position (args[i])); | |
785 | ||
652e2240 | 786 | single_kboard_state (); |
ebfbe249 | 787 | |
ec28a64d MB |
788 | { |
789 | Lisp_Object val; | |
ec28a64d MB |
790 | specbind (Qcommand_debug_status, Qnil); |
791 | ||
792 | val = Ffuncall (count + 1, args); | |
793 | UNGCPRO; | |
794 | return unbind_to (speccount, val); | |
795 | } | |
796 | } | |
797 | ||
798 | DEFUN ("prefix-numeric-value", Fprefix_numeric_value, Sprefix_numeric_value, | |
799 | 1, 1, 0, | |
7868a977 | 800 | "Return numeric meaning of raw prefix argument RAW.\n\ |
ec28a64d MB |
801 | A raw prefix argument is what you get from `(interactive \"P\")'.\n\ |
802 | Its numeric meaning is what you would get from `(interactive \"p\")'.") | |
803 | (raw) | |
804 | Lisp_Object raw; | |
805 | { | |
806 | Lisp_Object val; | |
807 | ||
265a9e55 | 808 | if (NILP (raw)) |
acab6442 | 809 | XSETFASTINT (val, 1); |
fd5285f3 | 810 | else if (EQ (raw, Qminus)) |
ec28a64d | 811 | XSETINT (val, -1); |
70949dac KR |
812 | else if (CONSP (raw) && INTEGERP (XCAR (raw))) |
813 | XSETINT (val, XINT (XCAR (raw))); | |
6e54b3de | 814 | else if (INTEGERP (raw)) |
ec28a64d MB |
815 | val = raw; |
816 | else | |
acab6442 | 817 | XSETFASTINT (val, 1); |
ec28a64d MB |
818 | |
819 | return val; | |
820 | } | |
821 | ||
dfcf069d | 822 | void |
ec28a64d MB |
823 | syms_of_callint () |
824 | { | |
824977b6 RS |
825 | point_marker = Fmake_marker (); |
826 | staticpro (&point_marker); | |
827 | ||
03e130d5 RS |
828 | preserved_fns = Fcons (intern ("region-beginning"), |
829 | Fcons (intern ("region-end"), | |
830 | Fcons (intern ("point"), | |
831 | Fcons (intern ("mark"), Qnil)))); | |
832 | staticpro (&preserved_fns); | |
833 | ||
834 | Qlist = intern ("list"); | |
835 | staticpro (&Qlist); | |
8450690a RS |
836 | Qlet = intern ("let"); |
837 | staticpro (&Qlet); | |
838 | Qletx = intern ("let*"); | |
839 | staticpro (&Qletx); | |
840 | Qsave_excursion = intern ("save-excursion"); | |
841 | staticpro (&Qsave_excursion); | |
03e130d5 | 842 | |
ec28a64d MB |
843 | Qminus = intern ("-"); |
844 | staticpro (&Qminus); | |
845 | ||
fdb4a38c RS |
846 | Qplus = intern ("+"); |
847 | staticpro (&Qplus); | |
848 | ||
ec28a64d MB |
849 | Qcall_interactively = intern ("call-interactively"); |
850 | staticpro (&Qcall_interactively); | |
851 | ||
852 | Qcommand_debug_status = intern ("command-debug-status"); | |
853 | staticpro (&Qcommand_debug_status); | |
854 | ||
52614803 RS |
855 | Qenable_recursive_minibuffers = intern ("enable-recursive-minibuffers"); |
856 | staticpro (&Qenable_recursive_minibuffers); | |
857 | ||
ef2515c0 RS |
858 | Qmouse_leave_buffer_hook = intern ("mouse-leave-buffer-hook"); |
859 | staticpro (&Qmouse_leave_buffer_hook); | |
860 | ||
df31bc64 RS |
861 | callint_message_size = 100; |
862 | callint_message = (char *) xmalloc (callint_message_size); | |
863 | ||
864 | ||
1e0c5826 | 865 | DEFVAR_KBOARD ("prefix-arg", Vprefix_arg, |
8c917bf2 KH |
866 | "The value of the prefix argument for the next editing command.\n\ |
867 | It may be a number, or the symbol `-' for just a minus sign as arg,\n\ | |
868 | or a list whose car is a number for just one or more C-U's\n\ | |
869 | or nil if no argument has been specified.\n\ | |
870 | \n\ | |
871 | You cannot examine this variable to find the argument for this command\n\ | |
872 | since it has been set to nil by the time you can look.\n\ | |
873 | Instead, you should use the variable `current-prefix-arg', although\n\ | |
874 | normally commands can get this prefix argument with (interactive \"P\")."); | |
8c917bf2 | 875 | |
fe3fbdcc RS |
876 | DEFVAR_KBOARD ("last-prefix-arg", Vlast_prefix_arg, |
877 | "The value of the prefix argument for the previous editing command.\n\ | |
878 | See `prefix-arg' for the meaning of the value."); | |
879 | ||
8c917bf2 KH |
880 | DEFVAR_LISP ("current-prefix-arg", &Vcurrent_prefix_arg, |
881 | "The value of the prefix argument for this editing command.\n\ | |
882 | It may be a number, or the symbol `-' for just a minus sign as arg,\n\ | |
883 | or a list whose car is a number for just one or more C-U's\n\ | |
884 | or nil if no argument has been specified.\n\ | |
885 | This is what `(interactive \"P\")' returns."); | |
886 | Vcurrent_prefix_arg = Qnil; | |
887 | ||
ec28a64d MB |
888 | DEFVAR_LISP ("command-history", &Vcommand_history, |
889 | "List of recent commands that read arguments from terminal.\n\ | |
890 | Each command is represented as a form to evaluate."); | |
891 | Vcommand_history = Qnil; | |
892 | ||
893 | DEFVAR_LISP ("command-debug-status", &Vcommand_debug_status, | |
894 | "Debugging status of current interactive command.\n\ | |
895 | Bound each time `call-interactively' is called;\n\ | |
896 | may be set by the debugger as a reminder for itself."); | |
897 | Vcommand_debug_status = Qnil; | |
898 | ||
2ad6c959 | 899 | DEFVAR_LISP ("mark-even-if-inactive", &Vmark_even_if_inactive, |
9f315aeb RS |
900 | "*Non-nil means you can use the mark even when inactive.\n\ |
901 | This option makes a difference in Transient Mark mode.\n\ | |
902 | When the option is non-nil, deactivation of the mark\n\ | |
903 | turns off region highlighting, but commands that use the mark\n\ | |
904 | behave as if the mark were still active."); | |
905 | Vmark_even_if_inactive = Qnil; | |
906 | ||
ef2515c0 RS |
907 | DEFVAR_LISP ("mouse-leave-buffer-hook", &Vmouse_leave_buffer_hook, |
908 | "Hook to run when about to switch windows with a mouse command.\n\ | |
909 | Its purpose is to give temporary modes such as Isearch mode\n\ | |
910 | a way to turn themselves off when a mouse command switches windows."); | |
911 | Vmouse_leave_buffer_hook = Qnil; | |
912 | ||
ec28a64d MB |
913 | defsubr (&Sinteractive); |
914 | defsubr (&Scall_interactively); | |
915 | defsubr (&Sprefix_numeric_value); | |
916 | } |