Commit | Line | Data |
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ec28a64d | 1 | /* Call a Lisp function interactively. |
b9f0b172 | 2 | Copyright (C) 1985, 86, 93, 94, 95, 1997, 2000, 2002 |
4f895918 | 3 | Free Software Foundation, Inc. |
ec28a64d MB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
dbc4e1c1 | 9 | the Free Software Foundation; either version 2, or (at your option) |
ec28a64d MB |
10 | any later version. |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
ec28a64d MB |
21 | |
22 | ||
18160b98 | 23 | #include <config.h> |
fdb82f93 | 24 | |
ec28a64d MB |
25 | #include "lisp.h" |
26 | #include "buffer.h" | |
27 | #include "commands.h" | |
760cbdd3 | 28 | #include "keyboard.h" |
ec28a64d | 29 | #include "window.h" |
8feddab4 | 30 | #include "keymap.h" |
ec28a64d | 31 | |
8892f40b GM |
32 | #ifdef HAVE_INDEX |
33 | extern char *index P_ ((const char *, int)); | |
a847af86 | 34 | #endif |
ec28a64d | 35 | |
c631c234 | 36 | extern Lisp_Object Qcursor_in_echo_area; |
93ed5f9d | 37 | extern Lisp_Object Qfile_directory_p; |
c631c234 | 38 | |
1e0c5826 | 39 | Lisp_Object Vcurrent_prefix_arg, Qminus, Qplus; |
ec28a64d MB |
40 | Lisp_Object Qcall_interactively; |
41 | Lisp_Object Vcommand_history; | |
42 | ||
225c2157 RS |
43 | extern Lisp_Object Vhistory_length; |
44 | ||
ec28a64d | 45 | Lisp_Object Vcommand_debug_status, Qcommand_debug_status; |
52614803 | 46 | Lisp_Object Qenable_recursive_minibuffers; |
ec28a64d | 47 | |
9f315aeb RS |
48 | /* Non-nil means treat the mark as active |
49 | even if mark_active is 0. */ | |
50 | Lisp_Object Vmark_even_if_inactive; | |
51 | ||
ef2515c0 RS |
52 | Lisp_Object Vmouse_leave_buffer_hook, Qmouse_leave_buffer_hook; |
53 | ||
079e479f | 54 | Lisp_Object Qlist, Qlet, Qletx, Qsave_excursion, Qprogn; |
824977b6 RS |
55 | static Lisp_Object preserved_fns; |
56 | ||
57 | /* Marker used within call-interactively to refer to point. */ | |
58 | static Lisp_Object point_marker; | |
03e130d5 | 59 | |
df31bc64 RS |
60 | /* Buffer for the prompt text used in Fcall_interactively. */ |
61 | static char *callint_message; | |
62 | ||
63 | /* Allocated length of that buffer. */ | |
64 | static int callint_message_size; | |
1cf9cfc6 | 65 | |
ec28a64d MB |
66 | /* ARGSUSED */ |
67 | DEFUN ("interactive", Finteractive, Sinteractive, 0, UNEVALLED, 0, | |
fdb82f93 PJ |
68 | doc: /* Specify a way of parsing arguments for interactive use of a function. |
69 | For example, write | |
70 | (defun foo (arg) "Doc string" (interactive "p") ...use arg...) | |
71 | to make ARG be the prefix argument when `foo' is called as a command. | |
72 | The "call" to `interactive' is actually a declaration rather than a function; | |
73 | it tells `call-interactively' how to read arguments | |
74 | to pass to the function. | |
75 | When actually called, `interactive' just returns nil. | |
76 | ||
77 | The argument of `interactive' is usually a string containing a code letter | |
78 | followed by a prompt. (Some code letters do not use I/O to get | |
79 | the argument and do not need prompts.) To prompt for multiple arguments, | |
80 | give a code letter, its prompt, a newline, and another code letter, etc. | |
81 | Prompts are passed to format, and may use % escapes to print the | |
82 | arguments that have already been read. | |
83 | If the argument is not a string, it is evaluated to get a list of | |
84 | arguments to pass to the function. | |
85 | Just `(interactive)' means pass no args when calling interactively. | |
86 | ||
87 | Code letters available are: | |
88 | a -- Function name: symbol with a function definition. | |
89 | b -- Name of existing buffer. | |
90 | B -- Name of buffer, possibly nonexistent. | |
91 | c -- Character (no input method is used). | |
92 | C -- Command name: symbol with interactive function definition. | |
93 | d -- Value of point as number. Does not do I/O. | |
94 | D -- Directory name. | |
95 | e -- Parametrized event (i.e., one that's a list) that invoked this command. | |
96 | If used more than once, the Nth `e' returns the Nth parameterized event. | |
97 | This skips events that are integers or symbols. | |
98 | f -- Existing file name. | |
99 | F -- Possibly nonexistent file name. | |
100 | i -- Ignored, i.e. always nil. Does not do I/O. | |
101 | k -- Key sequence (downcase the last event if needed to get a definition). | |
102 | K -- Key sequence to be redefined (do not downcase the last event). | |
103 | m -- Value of mark as number. Does not do I/O. | |
104 | M -- Any string. Inherits the current input method. | |
105 | n -- Number read using minibuffer. | |
106 | N -- Raw prefix arg, or if none, do like code `n'. | |
107 | p -- Prefix arg converted to number. Does not do I/O. | |
108 | P -- Prefix arg in raw form. Does not do I/O. | |
109 | r -- Region: point and mark as 2 numeric args, smallest first. Does no I/O. | |
110 | s -- Any string. Does not inherit the current input method. | |
111 | S -- Any symbol. | |
112 | v -- Variable name: symbol that is user-variable-p. | |
113 | x -- Lisp expression read but not evaluated. | |
114 | X -- Lisp expression read and evaluated. | |
115 | z -- Coding system. | |
116 | Z -- Coding system, nil if no prefix arg. | |
117 | In addition, if the string begins with `*' | |
118 | then an error is signaled if the buffer is read-only. | |
119 | This happens before reading any arguments. | |
120 | If the string begins with `@', then Emacs searches the key sequence | |
121 | which invoked the command for its first mouse click (or any other | |
122 | event which specifies a window), and selects that window before | |
123 | reading any arguments. You may use both `@' and `*'; they are | |
84cc45a7 PJ |
124 | processed in the order that they appear. |
125 | usage: (interactive ARGS) */) | |
fdb82f93 | 126 | (args) |
ec28a64d MB |
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 | 154 | next = XCDR (tail); |
f3fbd155 | 155 | XSETCAR (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 | |
f203cf07 RS |
164 | check_mark (for_region) |
165 | int for_region; | |
ec28a64d | 166 | { |
86c1cf23 KH |
167 | Lisp_Object tem; |
168 | tem = Fmarker_buffer (current_buffer->mark); | |
265a9e55 | 169 | if (NILP (tem) || (XBUFFER (tem) != current_buffer)) |
f203cf07 RS |
170 | error (for_region ? "The mark is not set now, so there is no region" |
171 | : "The mark is not set now"); | |
6497d2d8 RM |
172 | if (!NILP (Vtransient_mark_mode) && NILP (Vmark_even_if_inactive) |
173 | && NILP (current_buffer->mark_active)) | |
174 | Fsignal (Qmark_inactive, Qnil); | |
ec28a64d MB |
175 | } |
176 | ||
177 | ||
d455db8e | 178 | DEFUN ("call-interactively", Fcall_interactively, Scall_interactively, 1, 3, 0, |
fdb82f93 PJ |
179 | doc: /* Call FUNCTION, reading args according to its interactive calling specs. |
180 | Return the value FUNCTION returns. | |
181 | The function contains a specification of how to do the argument reading. | |
182 | In the case of user-defined functions, this is specified by placing a call | |
183 | to the function `interactive' at the top level of the function body. | |
184 | See `interactive'. | |
185 | ||
186 | Optional second arg RECORD-FLAG non-nil | |
187 | means unconditionally put this command in the command-history. | |
188 | Otherwise, this is done only if an arg is read using the minibuffer. | |
189 | Optional third arg KEYS, if given, specifies the sequence of events to | |
190 | supply if the command inquires which events were used to invoke it. */) | |
191 | (function, record_flag, keys) | |
7868a977 | 192 | Lisp_Object function, record_flag, keys; |
ec28a64d MB |
193 | { |
194 | Lisp_Object *args, *visargs; | |
195 | unsigned char **argstrings; | |
196 | Lisp_Object fun; | |
197 | Lisp_Object funcar; | |
198 | Lisp_Object specs; | |
079e479f | 199 | Lisp_Object filter_specs; |
ec28a64d | 200 | Lisp_Object teml; |
52614803 | 201 | Lisp_Object enable; |
aed13378 | 202 | int speccount = SPECPDL_INDEX (); |
ec28a64d | 203 | |
bc78232c JB |
204 | /* The index of the next element of this_command_keys to examine for |
205 | the 'e' interactive code. */ | |
dbc4e1c1 | 206 | int next_event; |
bc78232c | 207 | |
ec28a64d MB |
208 | Lisp_Object prefix_arg; |
209 | unsigned char *string; | |
210 | unsigned char *tem; | |
63007de2 JB |
211 | |
212 | /* If varies[i] > 0, the i'th argument shouldn't just have its value | |
213 | in this call quoted in the command history. It should be | |
214 | recorded as a call to the function named callint_argfuns[varies[i]]. */ | |
ec28a64d | 215 | int *varies; |
63007de2 | 216 | |
ec28a64d MB |
217 | register int i, j; |
218 | int count, foo; | |
ec28a64d MB |
219 | char prompt1[100]; |
220 | char *tem1; | |
221 | int arg_from_tty = 0; | |
222 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
d455db8e | 223 | int key_count; |
09c886dc | 224 | int record_then_fail = 0; |
d455db8e RS |
225 | |
226 | if (NILP (keys)) | |
227 | keys = this_command_keys, key_count = this_command_key_count; | |
228 | else | |
229 | { | |
b7826503 | 230 | CHECK_VECTOR (keys); |
d455db8e RS |
231 | key_count = XVECTOR (keys)->size; |
232 | } | |
ec28a64d | 233 | |
e5d77022 | 234 | /* Save this now, since use of minibuffer will clobber it. */ |
8c917bf2 | 235 | prefix_arg = Vcurrent_prefix_arg; |
ec28a64d | 236 | |
46947372 | 237 | retry: |
ec28a64d | 238 | |
6e54b3de | 239 | if (SYMBOLP (function)) |
afa4c0f3 | 240 | enable = Fget (function, Qenable_recursive_minibuffers); |
4f895918 GM |
241 | else |
242 | enable = Qnil; | |
52614803 | 243 | |
ffd56f97 | 244 | fun = indirect_function (function); |
ec28a64d MB |
245 | |
246 | specs = Qnil; | |
247 | string = 0; | |
079e479f RS |
248 | /* The idea of FILTER_SPECS is to provide away to |
249 | specify how to represent the arguments in command history. | |
250 | The feature is not fully implemented. */ | |
251 | filter_specs = Qnil; | |
ec28a64d MB |
252 | |
253 | /* Decode the kind of function. Either handle it and return, | |
254 | or go to `lose' if not interactive, or go to `retry' | |
255 | to specify a different function, or set either STRING or SPECS. */ | |
256 | ||
6e54b3de | 257 | if (SUBRP (fun)) |
ec28a64d MB |
258 | { |
259 | string = (unsigned char *) XSUBR (fun)->prompt; | |
260 | if (!string) | |
261 | { | |
262 | lose: | |
b37902c8 | 263 | function = wrong_type_argument (Qcommandp, function); |
ec28a64d MB |
264 | goto retry; |
265 | } | |
ec28a64d | 266 | } |
6e54b3de | 267 | else if (COMPILEDP (fun)) |
ec28a64d | 268 | { |
f9b4aacf | 269 | if ((XVECTOR (fun)->size & PSEUDOVECTOR_SIZE_MASK) <= COMPILED_INTERACTIVE) |
ec28a64d MB |
270 | goto lose; |
271 | specs = XVECTOR (fun)->contents[COMPILED_INTERACTIVE]; | |
272 | } | |
273 | else if (!CONSP (fun)) | |
274 | goto lose; | |
01e85d61 | 275 | else if (funcar = XCAR (fun), EQ (funcar, Qautoload)) |
ec28a64d MB |
276 | { |
277 | GCPRO2 (function, prefix_arg); | |
278 | do_autoload (fun, function); | |
279 | UNGCPRO; | |
280 | goto retry; | |
281 | } | |
282 | else if (EQ (funcar, Qlambda)) | |
283 | { | |
01e85d61 | 284 | specs = Fassq (Qinteractive, Fcdr (XCDR (fun))); |
265a9e55 | 285 | if (NILP (specs)) |
ec28a64d | 286 | goto lose; |
079e479f | 287 | filter_specs = Fnth (make_number (1), specs); |
ec28a64d MB |
288 | specs = Fcar (Fcdr (specs)); |
289 | } | |
ec28a64d MB |
290 | else |
291 | goto lose; | |
292 | ||
09c886dc | 293 | /* If either SPECS or STRING is set to a string, use it. */ |
6e54b3de | 294 | if (STRINGP (specs)) |
46947372 JB |
295 | { |
296 | /* Make a copy of string so that if a GC relocates specs, | |
297 | `string' will still be valid. */ | |
d5db4077 KR |
298 | string = (unsigned char *) alloca (SBYTES (specs) + 1); |
299 | bcopy (SDATA (specs), string, | |
300 | SBYTES (specs) + 1); | |
46947372 | 301 | } |
ec28a64d MB |
302 | else if (string == 0) |
303 | { | |
03e130d5 | 304 | Lisp_Object input; |
91a6ba78 | 305 | i = num_input_events; |
03e130d5 RS |
306 | input = specs; |
307 | /* Compute the arg values using the user's expression. */ | |
079e479f | 308 | GCPRO2 (input, filter_specs); |
6bc1abf2 | 309 | specs = Feval (specs); |
079e479f | 310 | UNGCPRO; |
91a6ba78 | 311 | if (i != num_input_events || !NILP (record_flag)) |
03e130d5 RS |
312 | { |
313 | /* We should record this command on the command history. */ | |
314 | Lisp_Object values, car; | |
315 | /* Make a copy of the list of values, for the command history, | |
316 | and turn them into things we can eval. */ | |
317 | values = quotify_args (Fcopy_sequence (specs)); | |
318 | /* If the list of args was produced with an explicit call to `list', | |
319 | look for elements that were computed with (region-beginning) | |
320 | or (region-end), and put those expressions into VALUES | |
321 | instead of the present values. */ | |
8450690a | 322 | if (CONSP (input)) |
03e130d5 | 323 | { |
70949dac | 324 | car = XCAR (input); |
8450690a RS |
325 | /* Skip through certain special forms. */ |
326 | while (EQ (car, Qlet) || EQ (car, Qletx) | |
079e479f RS |
327 | || EQ (car, Qsave_excursion) |
328 | || EQ (car, Qprogn)) | |
03e130d5 | 329 | { |
70949dac KR |
330 | while (CONSP (XCDR (input))) |
331 | input = XCDR (input); | |
332 | input = XCAR (input); | |
8450690a RS |
333 | if (!CONSP (input)) |
334 | break; | |
70949dac | 335 | car = XCAR (input); |
8450690a RS |
336 | } |
337 | if (EQ (car, Qlist)) | |
338 | { | |
339 | Lisp_Object intail, valtail; | |
340 | for (intail = Fcdr (input), valtail = values; | |
341 | CONSP (valtail); | |
342 | intail = Fcdr (intail), valtail = Fcdr (valtail)) | |
03e130d5 | 343 | { |
8450690a RS |
344 | Lisp_Object elt; |
345 | elt = Fcar (intail); | |
346 | if (CONSP (elt)) | |
347 | { | |
348 | Lisp_Object presflag; | |
349 | presflag = Fmemq (Fcar (elt), preserved_fns); | |
350 | if (!NILP (presflag)) | |
351 | Fsetcar (valtail, Fcar (intail)); | |
352 | } | |
03e130d5 RS |
353 | } |
354 | } | |
355 | } | |
356 | Vcommand_history | |
357 | = Fcons (Fcons (function, values), Vcommand_history); | |
225c2157 RS |
358 | |
359 | /* Don't keep command history around forever. */ | |
b9f0b172 | 360 | if (INTEGERP (Vhistory_length) && XINT (Vhistory_length) > 0) |
225c2157 RS |
361 | { |
362 | teml = Fnthcdr (Vhistory_length, Vcommand_history); | |
363 | if (CONSP (teml)) | |
f3fbd155 | 364 | XSETCDR (teml, Qnil); |
225c2157 | 365 | } |
03e130d5 | 366 | } |
652e2240 | 367 | single_kboard_state (); |
ec28a64d MB |
368 | return apply1 (function, specs); |
369 | } | |
370 | ||
371 | /* Here if function specifies a string to control parsing the defaults */ | |
372 | ||
dbc4e1c1 | 373 | /* Set next_event to point to the first event with parameters. */ |
d455db8e RS |
374 | for (next_event = 0; next_event < key_count; next_event++) |
375 | if (EVENT_HAS_PARAMETERS (XVECTOR (keys)->contents[next_event])) | |
dbc4e1c1 | 376 | break; |
09c886dc | 377 | |
42bb2790 | 378 | /* Handle special starting chars `*' and `@'. Also `-'. */ |
e92d107b | 379 | /* Note that `+' is reserved for user extensions. */ |
ec28a64d MB |
380 | while (1) |
381 | { | |
fb775602 | 382 | if (*string == '+') |
e92d107b RS |
383 | error ("`+' is not used in `interactive' for ordinary commands"); |
384 | else if (*string == '*') | |
ec28a64d MB |
385 | { |
386 | string++; | |
265a9e55 | 387 | if (!NILP (current_buffer->read_only)) |
09c886dc RS |
388 | { |
389 | if (!NILP (record_flag)) | |
390 | { | |
391 | unsigned char *p = string; | |
392 | while (*p) | |
393 | { | |
394 | if (! (*p == 'r' || *p == 'p' || *p == 'P' | |
395 | || *p == '\n')) | |
396 | Fbarf_if_buffer_read_only (); | |
397 | p++; | |
398 | } | |
399 | record_then_fail = 1; | |
400 | } | |
401 | else | |
402 | Fbarf_if_buffer_read_only (); | |
403 | } | |
ec28a64d | 404 | } |
42bb2790 RS |
405 | /* Ignore this for semi-compatibility with Lucid. */ |
406 | else if (*string == '-') | |
407 | string++; | |
ec28a64d MB |
408 | else if (*string == '@') |
409 | { | |
86c1cf23 | 410 | Lisp_Object event; |
dbc4e1c1 | 411 | |
d455db8e | 412 | event = XVECTOR (keys)->contents[next_event]; |
dbc4e1c1 | 413 | if (EVENT_HAS_PARAMETERS (event) |
70949dac KR |
414 | && (event = XCDR (event), CONSP (event)) |
415 | && (event = XCAR (event), CONSP (event)) | |
416 | && (event = XCAR (event), WINDOWP (event))) | |
d1fa2e8a | 417 | { |
d68807fc | 418 | if (MINI_WINDOW_P (XWINDOW (event)) |
42bb2790 | 419 | && ! (minibuf_level > 0 && EQ (event, minibuf_window))) |
d1fa2e8a | 420 | error ("Attempt to select inactive minibuffer window"); |
ef2515c0 RS |
421 | |
422 | /* If the current buffer wants to clean up, let it. */ | |
423 | if (!NILP (Vmouse_leave_buffer_hook)) | |
424 | call1 (Vrun_hooks, Qmouse_leave_buffer_hook); | |
425 | ||
d1fa2e8a KH |
426 | Fselect_window (event); |
427 | } | |
ec28a64d | 428 | string++; |
ec28a64d MB |
429 | } |
430 | else break; | |
431 | } | |
432 | ||
433 | /* Count the number of arguments the interactive spec would have | |
434 | us give to the function. */ | |
435 | tem = string; | |
436 | for (j = 0; *tem; j++) | |
437 | { | |
438 | /* 'r' specifications ("point and mark as 2 numeric args") | |
439 | produce *two* arguments. */ | |
440 | if (*tem == 'r') j++; | |
441 | tem = (unsigned char *) index (tem, '\n'); | |
442 | if (tem) | |
443 | tem++; | |
444 | else | |
445 | tem = (unsigned char *) ""; | |
446 | } | |
6bc1abf2 | 447 | count = j; |
ec28a64d MB |
448 | |
449 | args = (Lisp_Object *) alloca ((count + 1) * sizeof (Lisp_Object)); | |
450 | visargs = (Lisp_Object *) alloca ((count + 1) * sizeof (Lisp_Object)); | |
451 | argstrings = (unsigned char **) alloca ((count + 1) * sizeof (char *)); | |
452 | varies = (int *) alloca ((count + 1) * sizeof (int)); | |
453 | ||
454 | for (i = 0; i < (count + 1); i++) | |
455 | { | |
456 | args[i] = Qnil; | |
457 | visargs[i] = Qnil; | |
458 | varies[i] = 0; | |
459 | } | |
460 | ||
461 | GCPRO4 (prefix_arg, function, *args, *visargs); | |
462 | gcpro3.nvars = (count + 1); | |
463 | gcpro4.nvars = (count + 1); | |
464 | ||
52614803 RS |
465 | if (!NILP (enable)) |
466 | specbind (Qenable_recursive_minibuffers, Qt); | |
467 | ||
ec28a64d | 468 | tem = string; |
6bc1abf2 | 469 | for (i = 1; *tem; i++) |
ec28a64d MB |
470 | { |
471 | strncpy (prompt1, tem + 1, sizeof prompt1 - 1); | |
472 | prompt1[sizeof prompt1 - 1] = 0; | |
a847af86 | 473 | tem1 = (char *) index (prompt1, '\n'); |
ec28a64d MB |
474 | if (tem1) *tem1 = 0; |
475 | /* Fill argstrings with a vector of C strings | |
476 | corresponding to the Lisp strings in visargs. */ | |
477 | for (j = 1; j < i; j++) | |
478 | argstrings[j] | |
dc330139 RS |
479 | = (EQ (visargs[j], Qnil) |
480 | ? (unsigned char *) "" | |
d5db4077 | 481 | : SDATA (visargs[j])); |
ec28a64d | 482 | |
df31bc64 RS |
483 | /* Process the format-string in prompt1, putting the output |
484 | into callint_message. Make callint_message bigger if necessary. | |
485 | We don't use a buffer on the stack, because the contents | |
486 | need to stay stable for a while. */ | |
487 | while (1) | |
488 | { | |
489 | int nchars = doprnt (callint_message, callint_message_size, | |
490 | prompt1, (char *)0, | |
dc330139 | 491 | j - 1, (char **) argstrings + 1); |
c2b736ca | 492 | if (nchars < callint_message_size - 1) |
df31bc64 RS |
493 | break; |
494 | callint_message_size *= 2; | |
495 | callint_message | |
496 | = (char *) xrealloc (callint_message, callint_message_size); | |
497 | } | |
ec28a64d MB |
498 | |
499 | switch (*tem) | |
500 | { | |
501 | case 'a': /* Symbol defined as a function */ | |
df31bc64 | 502 | visargs[i] = Fcompleting_read (build_string (callint_message), |
ff9cd111 | 503 | Vobarray, Qfboundp, Qt, |
93fb51ae | 504 | Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
505 | /* Passing args[i] directly stimulates compiler bug */ |
506 | teml = visargs[i]; | |
507 | args[i] = Fintern (teml, Qnil); | |
508 | break; | |
509 | ||
510 | case 'b': /* Name of existing buffer */ | |
511 | args[i] = Fcurrent_buffer (); | |
512 | if (EQ (selected_window, minibuf_window)) | |
34c5d0ed | 513 | args[i] = Fother_buffer (args[i], Qnil, Qnil); |
df31bc64 | 514 | args[i] = Fread_buffer (build_string (callint_message), args[i], Qt); |
ec28a64d MB |
515 | break; |
516 | ||
517 | case 'B': /* Name of buffer, possibly nonexistent */ | |
df31bc64 | 518 | args[i] = Fread_buffer (build_string (callint_message), |
34c5d0ed | 519 | Fother_buffer (Fcurrent_buffer (), Qnil, Qnil), |
9262fcb6 | 520 | Qnil); |
ec28a64d MB |
521 | break; |
522 | ||
523 | case 'c': /* Character */ | |
562e4a4f | 524 | args[i] = Fread_char (build_string (callint_message), Qnil); |
453ed650 | 525 | message1_nolog ((char *) 0); |
ec28a64d MB |
526 | /* Passing args[i] directly stimulates compiler bug */ |
527 | teml = args[i]; | |
528 | visargs[i] = Fchar_to_string (teml); | |
529 | break; | |
530 | ||
531 | case 'C': /* Command: symbol with interactive function */ | |
df31bc64 | 532 | visargs[i] = Fcompleting_read (build_string (callint_message), |
ff9cd111 | 533 | Vobarray, Qcommandp, |
93fb51ae | 534 | Qt, Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
535 | /* Passing args[i] directly stimulates compiler bug */ |
536 | teml = visargs[i]; | |
537 | args[i] = Fintern (teml, Qnil); | |
538 | break; | |
539 | ||
540 | case 'd': /* Value of point. Does not do I/O. */ | |
dc330139 | 541 | set_marker_both (point_marker, Qnil, PT, PT_BYTE); |
824977b6 | 542 | args[i] = point_marker; |
ec28a64d MB |
543 | /* visargs[i] = Qnil; */ |
544 | varies[i] = 1; | |
545 | break; | |
546 | ||
ec28a64d | 547 | case 'D': /* Directory name. */ |
df31bc64 | 548 | args[i] = Fread_file_name (build_string (callint_message), Qnil, |
93ed5f9d KS |
549 | current_buffer->directory, Qlambda, Qnil, |
550 | Qfile_directory_p); | |
ec28a64d MB |
551 | break; |
552 | ||
553 | case 'f': /* Existing file name. */ | |
df31bc64 | 554 | args[i] = Fread_file_name (build_string (callint_message), |
93ed5f9d | 555 | Qnil, Qnil, Qlambda, Qnil, Qnil); |
ec28a64d MB |
556 | break; |
557 | ||
558 | case 'F': /* Possibly nonexistent file name. */ | |
df31bc64 | 559 | args[i] = Fread_file_name (build_string (callint_message), |
93ed5f9d | 560 | Qnil, Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
561 | break; |
562 | ||
40b2421c KH |
563 | case 'i': /* Ignore an argument -- Does not do I/O */ |
564 | varies[i] = -1; | |
565 | break; | |
566 | ||
1989e7bc | 567 | case 'k': /* Key sequence. */ |
c631c234 | 568 | { |
aed13378 | 569 | int speccount1 = SPECPDL_INDEX (); |
c631c234 RS |
570 | specbind (Qcursor_in_echo_area, Qt); |
571 | args[i] = Fread_key_sequence (build_string (callint_message), | |
ad4ac475 | 572 | Qnil, Qnil, Qnil, Qnil); |
c631c234 RS |
573 | unbind_to (speccount1, Qnil); |
574 | teml = args[i]; | |
575 | visargs[i] = Fkey_description (teml); | |
cdfac812 RS |
576 | |
577 | /* If the key sequence ends with a down-event, | |
578 | discard the following up-event. */ | |
579 | teml = Faref (args[i], make_number (XINT (Flength (args[i])) - 1)); | |
580 | if (CONSP (teml)) | |
70949dac | 581 | teml = XCAR (teml); |
cdfac812 RS |
582 | if (SYMBOLP (teml)) |
583 | { | |
584 | Lisp_Object tem2; | |
585 | ||
586 | teml = Fget (teml, intern ("event-symbol-elements")); | |
4b27f17c AS |
587 | /* Ignore first element, which is the base key. */ |
588 | tem2 = Fmemq (intern ("down"), Fcdr (teml)); | |
cdfac812 | 589 | if (! NILP (tem2)) |
7a983715 | 590 | Fread_event (Qnil, Qnil); |
cdfac812 | 591 | } |
c631c234 | 592 | } |
1989e7bc RS |
593 | break; |
594 | ||
595 | case 'K': /* Key sequence to be defined. */ | |
c631c234 | 596 | { |
aed13378 | 597 | int speccount1 = SPECPDL_INDEX (); |
c631c234 RS |
598 | specbind (Qcursor_in_echo_area, Qt); |
599 | args[i] = Fread_key_sequence (build_string (callint_message), | |
ad4ac475 | 600 | Qnil, Qt, Qnil, Qnil); |
c631c234 RS |
601 | teml = args[i]; |
602 | visargs[i] = Fkey_description (teml); | |
603 | unbind_to (speccount1, Qnil); | |
cdfac812 RS |
604 | |
605 | /* If the key sequence ends with a down-event, | |
606 | discard the following up-event. */ | |
607 | teml = Faref (args[i], make_number (XINT (Flength (args[i])) - 1)); | |
608 | if (CONSP (teml)) | |
70949dac | 609 | teml = XCAR (teml); |
cdfac812 RS |
610 | if (SYMBOLP (teml)) |
611 | { | |
612 | Lisp_Object tem2; | |
613 | ||
614 | teml = Fget (teml, intern ("event-symbol-elements")); | |
4b27f17c AS |
615 | /* Ignore first element, which is the base key. */ |
616 | tem2 = Fmemq (intern ("down"), Fcdr (teml)); | |
cdfac812 | 617 | if (! NILP (tem2)) |
7a983715 | 618 | Fread_event (Qnil, Qnil); |
cdfac812 | 619 | } |
c631c234 | 620 | } |
ec28a64d MB |
621 | break; |
622 | ||
bc78232c | 623 | case 'e': /* The invoking event. */ |
d455db8e | 624 | if (next_event >= key_count) |
bc78232c | 625 | error ("%s must be bound to an event with parameters", |
6e54b3de | 626 | (SYMBOLP (function) |
d5db4077 | 627 | ? (char *) SDATA (SYMBOL_NAME (function)) |
bc78232c | 628 | : "command")); |
d455db8e | 629 | args[i] = XVECTOR (keys)->contents[next_event++]; |
e5d77022 | 630 | varies[i] = -1; |
dbc4e1c1 JB |
631 | |
632 | /* Find the next parameterized event. */ | |
d455db8e | 633 | while (next_event < key_count |
dbc4e1c1 | 634 | && ! (EVENT_HAS_PARAMETERS |
d455db8e | 635 | (XVECTOR (keys)->contents[next_event]))) |
dbc4e1c1 JB |
636 | next_event++; |
637 | ||
63007de2 JB |
638 | break; |
639 | ||
ec28a64d | 640 | case 'm': /* Value of mark. Does not do I/O. */ |
f203cf07 | 641 | check_mark (0); |
ec28a64d | 642 | /* visargs[i] = Qnil; */ |
824977b6 | 643 | args[i] = current_buffer->mark; |
ec28a64d MB |
644 | varies[i] = 2; |
645 | break; | |
646 | ||
93fb51ae KH |
647 | case 'M': /* String read via minibuffer with |
648 | inheriting the current input method. */ | |
649 | args[i] = Fread_string (build_string (callint_message), | |
650 | Qnil, Qnil, Qnil, Qt); | |
651 | break; | |
652 | ||
ec28a64d | 653 | case 'N': /* Prefix arg, else number from minibuffer */ |
265a9e55 | 654 | if (!NILP (prefix_arg)) |
ec28a64d MB |
655 | goto have_prefix_arg; |
656 | case 'n': /* Read number from minibuffer. */ | |
f0490a0b RS |
657 | { |
658 | int first = 1; | |
659 | do | |
660 | { | |
661 | Lisp_Object tem; | |
662 | if (! first) | |
663 | { | |
664 | message ("Please enter a number."); | |
56fe6fc0 | 665 | sit_for (1, 0, 0, 0, 0); |
f0490a0b RS |
666 | } |
667 | first = 0; | |
668 | ||
669 | tem = Fread_from_minibuffer (build_string (callint_message), | |
93fb51ae KH |
670 | Qnil, Qnil, Qnil, Qnil, Qnil, |
671 | Qnil); | |
d5db4077 | 672 | if (! STRINGP (tem) || SCHARS (tem) == 0) |
f0490a0b RS |
673 | args[i] = Qnil; |
674 | else | |
675 | args[i] = Fread (tem); | |
676 | } | |
677 | while (! NUMBERP (args[i])); | |
678 | } | |
ec28a64d MB |
679 | visargs[i] = last_minibuf_string; |
680 | break; | |
681 | ||
682 | case 'P': /* Prefix arg in raw form. Does no I/O. */ | |
ec28a64d MB |
683 | args[i] = prefix_arg; |
684 | /* visargs[i] = Qnil; */ | |
685 | varies[i] = -1; | |
686 | break; | |
687 | ||
688 | case 'p': /* Prefix arg converted to number. No I/O. */ | |
71eda2d5 | 689 | have_prefix_arg: |
ec28a64d MB |
690 | args[i] = Fprefix_numeric_value (prefix_arg); |
691 | /* visargs[i] = Qnil; */ | |
692 | varies[i] = -1; | |
693 | break; | |
694 | ||
695 | case 'r': /* Region, point and mark as 2 args. */ | |
f203cf07 | 696 | check_mark (1); |
dc330139 | 697 | set_marker_both (point_marker, Qnil, PT, PT_BYTE); |
ec28a64d MB |
698 | /* visargs[i+1] = Qnil; */ |
699 | foo = marker_position (current_buffer->mark); | |
700 | /* visargs[i] = Qnil; */ | |
6ec8bbd2 | 701 | args[i] = PT < foo ? point_marker : current_buffer->mark; |
ec28a64d | 702 | varies[i] = 3; |
6ec8bbd2 | 703 | args[++i] = PT > foo ? point_marker : current_buffer->mark; |
ec28a64d MB |
704 | varies[i] = 4; |
705 | break; | |
706 | ||
93fb51ae KH |
707 | case 's': /* String read via minibuffer without |
708 | inheriting the current input method. */ | |
55c4d99f | 709 | args[i] = Fread_string (build_string (callint_message), |
93fb51ae | 710 | Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
711 | break; |
712 | ||
713 | case 'S': /* Any symbol. */ | |
df31bc64 | 714 | visargs[i] = Fread_string (build_string (callint_message), |
93fb51ae | 715 | Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
716 | /* Passing args[i] directly stimulates compiler bug */ |
717 | teml = visargs[i]; | |
718 | args[i] = Fintern (teml, Qnil); | |
719 | break; | |
720 | ||
721 | case 'v': /* Variable name: symbol that is | |
722 | user-variable-p. */ | |
ff9cd111 | 723 | args[i] = Fread_variable (build_string (callint_message), Qnil); |
ec28a64d MB |
724 | visargs[i] = last_minibuf_string; |
725 | break; | |
726 | ||
727 | case 'x': /* Lisp expression read but not evaluated */ | |
df31bc64 | 728 | args[i] = Fread_minibuffer (build_string (callint_message), Qnil); |
ec28a64d MB |
729 | visargs[i] = last_minibuf_string; |
730 | break; | |
731 | ||
732 | case 'X': /* Lisp expression read and evaluated */ | |
df31bc64 | 733 | args[i] = Feval_minibuffer (build_string (callint_message), Qnil); |
ec28a64d MB |
734 | visargs[i] = last_minibuf_string; |
735 | break; | |
736 | ||
40b2421c KH |
737 | case 'Z': /* Coding-system symbol, or ignore the |
738 | argument if no prefix */ | |
739 | if (NILP (prefix_arg)) | |
740 | { | |
741 | args[i] = Qnil; | |
742 | varies[i] = -1; | |
743 | } | |
744 | else | |
745 | { | |
746 | args[i] | |
747 | = Fread_non_nil_coding_system (build_string (callint_message)); | |
748 | visargs[i] = last_minibuf_string; | |
749 | } | |
750 | break; | |
751 | ||
752 | case 'z': /* Coding-system symbol or nil */ | |
024d8713 | 753 | args[i] = Fread_coding_system (build_string (callint_message), Qnil); |
40b2421c KH |
754 | visargs[i] = last_minibuf_string; |
755 | break; | |
756 | ||
e92d107b RS |
757 | /* We have a case for `+' so we get an error |
758 | if anyone tries to define one here. */ | |
759 | case '+': | |
ec28a64d | 760 | default: |
e92d107b | 761 | error ("Invalid control letter `%c' (%03o) in interactive calling string", |
ec28a64d MB |
762 | *tem, *tem); |
763 | } | |
764 | ||
765 | if (varies[i] == 0) | |
766 | arg_from_tty = 1; | |
767 | ||
6e54b3de | 768 | if (NILP (visargs[i]) && STRINGP (args[i])) |
ec28a64d MB |
769 | visargs[i] = args[i]; |
770 | ||
771 | tem = (unsigned char *) index (tem, '\n'); | |
772 | if (tem) tem++; | |
773 | else tem = (unsigned char *) ""; | |
774 | } | |
52614803 | 775 | unbind_to (speccount, Qnil); |
ec28a64d MB |
776 | |
777 | QUIT; | |
778 | ||
779 | args[0] = function; | |
780 | ||
7868a977 | 781 | if (arg_from_tty || !NILP (record_flag)) |
ec28a64d MB |
782 | { |
783 | visargs[0] = function; | |
63007de2 | 784 | for (i = 1; i < count + 1; i++) |
824977b6 RS |
785 | { |
786 | if (varies[i] > 0) | |
787 | visargs[i] = Fcons (intern (callint_argfuns[varies[i]]), Qnil); | |
788 | else | |
789 | visargs[i] = quotify_arg (args[i]); | |
790 | } | |
ec28a64d MB |
791 | Vcommand_history = Fcons (Flist (count + 1, visargs), |
792 | Vcommand_history); | |
225c2157 | 793 | /* Don't keep command history around forever. */ |
b9f0b172 | 794 | if (INTEGERP (Vhistory_length) && XINT (Vhistory_length) > 0) |
225c2157 RS |
795 | { |
796 | teml = Fnthcdr (Vhistory_length, Vcommand_history); | |
797 | if (CONSP (teml)) | |
f3fbd155 | 798 | XSETCDR (teml, Qnil); |
225c2157 | 799 | } |
ec28a64d MB |
800 | } |
801 | ||
824977b6 RS |
802 | /* If we used a marker to hold point, mark, or an end of the region, |
803 | temporarily, convert it to an integer now. */ | |
f4c8ded2 | 804 | for (i = 1; i <= count; i++) |
824977b6 RS |
805 | if (varies[i] >= 1 && varies[i] <= 4) |
806 | XSETINT (args[i], marker_position (args[i])); | |
807 | ||
09c886dc RS |
808 | if (record_then_fail) |
809 | Fbarf_if_buffer_read_only (); | |
810 | ||
652e2240 | 811 | single_kboard_state (); |
ebfbe249 | 812 | |
ec28a64d MB |
813 | { |
814 | Lisp_Object val; | |
ec28a64d MB |
815 | specbind (Qcommand_debug_status, Qnil); |
816 | ||
817 | val = Ffuncall (count + 1, args); | |
818 | UNGCPRO; | |
819 | return unbind_to (speccount, val); | |
820 | } | |
821 | } | |
822 | ||
823 | DEFUN ("prefix-numeric-value", Fprefix_numeric_value, Sprefix_numeric_value, | |
fdb82f93 PJ |
824 | 1, 1, 0, |
825 | doc: /* Return numeric meaning of raw prefix argument RAW. | |
826 | A raw prefix argument is what you get from `(interactive "P")'. | |
827 | Its numeric meaning is what you would get from `(interactive "p")'. */) | |
828 | (raw) | |
ec28a64d MB |
829 | Lisp_Object raw; |
830 | { | |
831 | Lisp_Object val; | |
832 | ||
265a9e55 | 833 | if (NILP (raw)) |
acab6442 | 834 | XSETFASTINT (val, 1); |
fd5285f3 | 835 | else if (EQ (raw, Qminus)) |
ec28a64d | 836 | XSETINT (val, -1); |
70949dac KR |
837 | else if (CONSP (raw) && INTEGERP (XCAR (raw))) |
838 | XSETINT (val, XINT (XCAR (raw))); | |
6e54b3de | 839 | else if (INTEGERP (raw)) |
ec28a64d MB |
840 | val = raw; |
841 | else | |
acab6442 | 842 | XSETFASTINT (val, 1); |
ec28a64d MB |
843 | |
844 | return val; | |
845 | } | |
846 | ||
dfcf069d | 847 | void |
ec28a64d MB |
848 | syms_of_callint () |
849 | { | |
824977b6 RS |
850 | point_marker = Fmake_marker (); |
851 | staticpro (&point_marker); | |
852 | ||
03e130d5 RS |
853 | preserved_fns = Fcons (intern ("region-beginning"), |
854 | Fcons (intern ("region-end"), | |
855 | Fcons (intern ("point"), | |
856 | Fcons (intern ("mark"), Qnil)))); | |
857 | staticpro (&preserved_fns); | |
858 | ||
859 | Qlist = intern ("list"); | |
860 | staticpro (&Qlist); | |
8450690a RS |
861 | Qlet = intern ("let"); |
862 | staticpro (&Qlet); | |
863 | Qletx = intern ("let*"); | |
864 | staticpro (&Qletx); | |
865 | Qsave_excursion = intern ("save-excursion"); | |
866 | staticpro (&Qsave_excursion); | |
079e479f RS |
867 | Qprogn = intern ("progn"); |
868 | staticpro (&Qprogn); | |
03e130d5 | 869 | |
ec28a64d MB |
870 | Qminus = intern ("-"); |
871 | staticpro (&Qminus); | |
872 | ||
fdb4a38c RS |
873 | Qplus = intern ("+"); |
874 | staticpro (&Qplus); | |
875 | ||
ec28a64d MB |
876 | Qcall_interactively = intern ("call-interactively"); |
877 | staticpro (&Qcall_interactively); | |
878 | ||
879 | Qcommand_debug_status = intern ("command-debug-status"); | |
880 | staticpro (&Qcommand_debug_status); | |
881 | ||
52614803 RS |
882 | Qenable_recursive_minibuffers = intern ("enable-recursive-minibuffers"); |
883 | staticpro (&Qenable_recursive_minibuffers); | |
884 | ||
ef2515c0 RS |
885 | Qmouse_leave_buffer_hook = intern ("mouse-leave-buffer-hook"); |
886 | staticpro (&Qmouse_leave_buffer_hook); | |
887 | ||
df31bc64 RS |
888 | callint_message_size = 100; |
889 | callint_message = (char *) xmalloc (callint_message_size); | |
890 | ||
891 | ||
1e0c5826 | 892 | DEFVAR_KBOARD ("prefix-arg", Vprefix_arg, |
fdb82f93 PJ |
893 | doc: /* The value of the prefix argument for the next editing command. |
894 | It may be a number, or the symbol `-' for just a minus sign as arg, | |
895 | or a list whose car is a number for just one or more C-u's | |
896 | or nil if no argument has been specified. | |
897 | ||
898 | You cannot examine this variable to find the argument for this command | |
899 | since it has been set to nil by the time you can look. | |
900 | Instead, you should use the variable `current-prefix-arg', although | |
901 | normally commands can get this prefix argument with (interactive "P"). */); | |
8c917bf2 | 902 | |
fe3fbdcc | 903 | DEFVAR_KBOARD ("last-prefix-arg", Vlast_prefix_arg, |
fdb82f93 PJ |
904 | doc: /* The value of the prefix argument for the previous editing command. |
905 | See `prefix-arg' for the meaning of the value. */); | |
fe3fbdcc | 906 | |
8c917bf2 | 907 | DEFVAR_LISP ("current-prefix-arg", &Vcurrent_prefix_arg, |
fdb82f93 PJ |
908 | doc: /* The value of the prefix argument for this editing command. |
909 | It may be a number, or the symbol `-' for just a minus sign as arg, | |
910 | or a list whose car is a number for just one or more C-u's | |
911 | or nil if no argument has been specified. | |
912 | This is what `(interactive \"P\")' returns. */); | |
8c917bf2 KH |
913 | Vcurrent_prefix_arg = Qnil; |
914 | ||
ec28a64d | 915 | DEFVAR_LISP ("command-history", &Vcommand_history, |
fdb82f93 PJ |
916 | doc: /* List of recent commands that read arguments from terminal. |
917 | Each command is represented as a form to evaluate. */); | |
ec28a64d MB |
918 | Vcommand_history = Qnil; |
919 | ||
920 | DEFVAR_LISP ("command-debug-status", &Vcommand_debug_status, | |
fdb82f93 PJ |
921 | doc: /* Debugging status of current interactive command. |
922 | Bound each time `call-interactively' is called; | |
923 | may be set by the debugger as a reminder for itself. */); | |
ec28a64d MB |
924 | Vcommand_debug_status = Qnil; |
925 | ||
2ad6c959 | 926 | DEFVAR_LISP ("mark-even-if-inactive", &Vmark_even_if_inactive, |
fdb82f93 PJ |
927 | doc: /* *Non-nil means you can use the mark even when inactive. |
928 | This option makes a difference in Transient Mark mode. | |
929 | When the option is non-nil, deactivation of the mark | |
930 | turns off region highlighting, but commands that use the mark | |
931 | behave as if the mark were still active. */); | |
9f315aeb RS |
932 | Vmark_even_if_inactive = Qnil; |
933 | ||
ef2515c0 | 934 | DEFVAR_LISP ("mouse-leave-buffer-hook", &Vmouse_leave_buffer_hook, |
fdb82f93 PJ |
935 | doc: /* Hook to run when about to switch windows with a mouse command. |
936 | Its purpose is to give temporary modes such as Isearch mode | |
937 | a way to turn themselves off when a mouse command switches windows. */); | |
ef2515c0 RS |
938 | Vmouse_leave_buffer_hook = Qnil; |
939 | ||
ec28a64d MB |
940 | defsubr (&Sinteractive); |
941 | defsubr (&Scall_interactively); | |
942 | defsubr (&Sprefix_numeric_value); | |
943 | } |