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 | |
170d3006 AS |
412 | event = (next_event < key_count |
413 | ? XVECTOR (keys)->contents[next_event] | |
414 | : Qnil); | |
dbc4e1c1 | 415 | if (EVENT_HAS_PARAMETERS (event) |
70949dac KR |
416 | && (event = XCDR (event), CONSP (event)) |
417 | && (event = XCAR (event), CONSP (event)) | |
418 | && (event = XCAR (event), WINDOWP (event))) | |
d1fa2e8a | 419 | { |
d68807fc | 420 | if (MINI_WINDOW_P (XWINDOW (event)) |
42bb2790 | 421 | && ! (minibuf_level > 0 && EQ (event, minibuf_window))) |
d1fa2e8a | 422 | error ("Attempt to select inactive minibuffer window"); |
ef2515c0 RS |
423 | |
424 | /* If the current buffer wants to clean up, let it. */ | |
425 | if (!NILP (Vmouse_leave_buffer_hook)) | |
426 | call1 (Vrun_hooks, Qmouse_leave_buffer_hook); | |
427 | ||
d1fa2e8a KH |
428 | Fselect_window (event); |
429 | } | |
ec28a64d | 430 | string++; |
ec28a64d MB |
431 | } |
432 | else break; | |
433 | } | |
434 | ||
435 | /* Count the number of arguments the interactive spec would have | |
436 | us give to the function. */ | |
437 | tem = string; | |
438 | for (j = 0; *tem; j++) | |
439 | { | |
440 | /* 'r' specifications ("point and mark as 2 numeric args") | |
441 | produce *two* arguments. */ | |
442 | if (*tem == 'r') j++; | |
443 | tem = (unsigned char *) index (tem, '\n'); | |
444 | if (tem) | |
445 | tem++; | |
446 | else | |
447 | tem = (unsigned char *) ""; | |
448 | } | |
6bc1abf2 | 449 | count = j; |
ec28a64d MB |
450 | |
451 | args = (Lisp_Object *) alloca ((count + 1) * sizeof (Lisp_Object)); | |
452 | visargs = (Lisp_Object *) alloca ((count + 1) * sizeof (Lisp_Object)); | |
453 | argstrings = (unsigned char **) alloca ((count + 1) * sizeof (char *)); | |
454 | varies = (int *) alloca ((count + 1) * sizeof (int)); | |
455 | ||
456 | for (i = 0; i < (count + 1); i++) | |
457 | { | |
458 | args[i] = Qnil; | |
459 | visargs[i] = Qnil; | |
460 | varies[i] = 0; | |
461 | } | |
462 | ||
463 | GCPRO4 (prefix_arg, function, *args, *visargs); | |
464 | gcpro3.nvars = (count + 1); | |
465 | gcpro4.nvars = (count + 1); | |
466 | ||
52614803 RS |
467 | if (!NILP (enable)) |
468 | specbind (Qenable_recursive_minibuffers, Qt); | |
469 | ||
ec28a64d | 470 | tem = string; |
6bc1abf2 | 471 | for (i = 1; *tem; i++) |
ec28a64d MB |
472 | { |
473 | strncpy (prompt1, tem + 1, sizeof prompt1 - 1); | |
474 | prompt1[sizeof prompt1 - 1] = 0; | |
a847af86 | 475 | tem1 = (char *) index (prompt1, '\n'); |
ec28a64d MB |
476 | if (tem1) *tem1 = 0; |
477 | /* Fill argstrings with a vector of C strings | |
478 | corresponding to the Lisp strings in visargs. */ | |
479 | for (j = 1; j < i; j++) | |
480 | argstrings[j] | |
dc330139 RS |
481 | = (EQ (visargs[j], Qnil) |
482 | ? (unsigned char *) "" | |
d5db4077 | 483 | : SDATA (visargs[j])); |
ec28a64d | 484 | |
df31bc64 RS |
485 | /* Process the format-string in prompt1, putting the output |
486 | into callint_message. Make callint_message bigger if necessary. | |
487 | We don't use a buffer on the stack, because the contents | |
488 | need to stay stable for a while. */ | |
489 | while (1) | |
490 | { | |
491 | int nchars = doprnt (callint_message, callint_message_size, | |
492 | prompt1, (char *)0, | |
dc330139 | 493 | j - 1, (char **) argstrings + 1); |
c2b736ca | 494 | if (nchars < callint_message_size - 1) |
df31bc64 RS |
495 | break; |
496 | callint_message_size *= 2; | |
497 | callint_message | |
498 | = (char *) xrealloc (callint_message, callint_message_size); | |
499 | } | |
ec28a64d MB |
500 | |
501 | switch (*tem) | |
502 | { | |
503 | case 'a': /* Symbol defined as a function */ | |
df31bc64 | 504 | visargs[i] = Fcompleting_read (build_string (callint_message), |
ff9cd111 | 505 | Vobarray, Qfboundp, Qt, |
93fb51ae | 506 | Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
507 | /* Passing args[i] directly stimulates compiler bug */ |
508 | teml = visargs[i]; | |
509 | args[i] = Fintern (teml, Qnil); | |
510 | break; | |
511 | ||
512 | case 'b': /* Name of existing buffer */ | |
513 | args[i] = Fcurrent_buffer (); | |
514 | if (EQ (selected_window, minibuf_window)) | |
34c5d0ed | 515 | args[i] = Fother_buffer (args[i], Qnil, Qnil); |
df31bc64 | 516 | args[i] = Fread_buffer (build_string (callint_message), args[i], Qt); |
ec28a64d MB |
517 | break; |
518 | ||
519 | case 'B': /* Name of buffer, possibly nonexistent */ | |
df31bc64 | 520 | args[i] = Fread_buffer (build_string (callint_message), |
34c5d0ed | 521 | Fother_buffer (Fcurrent_buffer (), Qnil, Qnil), |
9262fcb6 | 522 | Qnil); |
ec28a64d MB |
523 | break; |
524 | ||
525 | case 'c': /* Character */ | |
562e4a4f | 526 | args[i] = Fread_char (build_string (callint_message), Qnil); |
453ed650 | 527 | message1_nolog ((char *) 0); |
ec28a64d MB |
528 | /* Passing args[i] directly stimulates compiler bug */ |
529 | teml = args[i]; | |
530 | visargs[i] = Fchar_to_string (teml); | |
531 | break; | |
532 | ||
533 | case 'C': /* Command: symbol with interactive function */ | |
df31bc64 | 534 | visargs[i] = Fcompleting_read (build_string (callint_message), |
ff9cd111 | 535 | Vobarray, Qcommandp, |
93fb51ae | 536 | Qt, Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
537 | /* Passing args[i] directly stimulates compiler bug */ |
538 | teml = visargs[i]; | |
539 | args[i] = Fintern (teml, Qnil); | |
540 | break; | |
541 | ||
542 | case 'd': /* Value of point. Does not do I/O. */ | |
dc330139 | 543 | set_marker_both (point_marker, Qnil, PT, PT_BYTE); |
824977b6 | 544 | args[i] = point_marker; |
ec28a64d MB |
545 | /* visargs[i] = Qnil; */ |
546 | varies[i] = 1; | |
547 | break; | |
548 | ||
ec28a64d | 549 | case 'D': /* Directory name. */ |
df31bc64 | 550 | args[i] = Fread_file_name (build_string (callint_message), Qnil, |
93ed5f9d KS |
551 | current_buffer->directory, Qlambda, Qnil, |
552 | Qfile_directory_p); | |
ec28a64d MB |
553 | break; |
554 | ||
555 | case 'f': /* Existing file name. */ | |
df31bc64 | 556 | args[i] = Fread_file_name (build_string (callint_message), |
93ed5f9d | 557 | Qnil, Qnil, Qlambda, Qnil, Qnil); |
ec28a64d MB |
558 | break; |
559 | ||
560 | case 'F': /* Possibly nonexistent file name. */ | |
df31bc64 | 561 | args[i] = Fread_file_name (build_string (callint_message), |
93ed5f9d | 562 | Qnil, Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
563 | break; |
564 | ||
40b2421c KH |
565 | case 'i': /* Ignore an argument -- Does not do I/O */ |
566 | varies[i] = -1; | |
567 | break; | |
568 | ||
1989e7bc | 569 | case 'k': /* Key sequence. */ |
c631c234 | 570 | { |
aed13378 | 571 | int speccount1 = SPECPDL_INDEX (); |
c631c234 RS |
572 | specbind (Qcursor_in_echo_area, Qt); |
573 | args[i] = Fread_key_sequence (build_string (callint_message), | |
ad4ac475 | 574 | Qnil, Qnil, Qnil, Qnil); |
c631c234 RS |
575 | unbind_to (speccount1, Qnil); |
576 | teml = args[i]; | |
577 | visargs[i] = Fkey_description (teml); | |
cdfac812 RS |
578 | |
579 | /* If the key sequence ends with a down-event, | |
580 | discard the following up-event. */ | |
581 | teml = Faref (args[i], make_number (XINT (Flength (args[i])) - 1)); | |
582 | if (CONSP (teml)) | |
70949dac | 583 | teml = XCAR (teml); |
cdfac812 RS |
584 | if (SYMBOLP (teml)) |
585 | { | |
586 | Lisp_Object tem2; | |
587 | ||
588 | teml = Fget (teml, intern ("event-symbol-elements")); | |
4b27f17c AS |
589 | /* Ignore first element, which is the base key. */ |
590 | tem2 = Fmemq (intern ("down"), Fcdr (teml)); | |
cdfac812 | 591 | if (! NILP (tem2)) |
7a983715 | 592 | Fread_event (Qnil, Qnil); |
cdfac812 | 593 | } |
c631c234 | 594 | } |
1989e7bc RS |
595 | break; |
596 | ||
597 | case 'K': /* Key sequence to be defined. */ | |
c631c234 | 598 | { |
aed13378 | 599 | int speccount1 = SPECPDL_INDEX (); |
c631c234 RS |
600 | specbind (Qcursor_in_echo_area, Qt); |
601 | args[i] = Fread_key_sequence (build_string (callint_message), | |
ad4ac475 | 602 | Qnil, Qt, Qnil, Qnil); |
c631c234 RS |
603 | teml = args[i]; |
604 | visargs[i] = Fkey_description (teml); | |
605 | unbind_to (speccount1, Qnil); | |
cdfac812 RS |
606 | |
607 | /* If the key sequence ends with a down-event, | |
608 | discard the following up-event. */ | |
609 | teml = Faref (args[i], make_number (XINT (Flength (args[i])) - 1)); | |
610 | if (CONSP (teml)) | |
70949dac | 611 | teml = XCAR (teml); |
cdfac812 RS |
612 | if (SYMBOLP (teml)) |
613 | { | |
614 | Lisp_Object tem2; | |
615 | ||
616 | teml = Fget (teml, intern ("event-symbol-elements")); | |
4b27f17c AS |
617 | /* Ignore first element, which is the base key. */ |
618 | tem2 = Fmemq (intern ("down"), Fcdr (teml)); | |
cdfac812 | 619 | if (! NILP (tem2)) |
7a983715 | 620 | Fread_event (Qnil, Qnil); |
cdfac812 | 621 | } |
c631c234 | 622 | } |
ec28a64d MB |
623 | break; |
624 | ||
bc78232c | 625 | case 'e': /* The invoking event. */ |
d455db8e | 626 | if (next_event >= key_count) |
bc78232c | 627 | error ("%s must be bound to an event with parameters", |
6e54b3de | 628 | (SYMBOLP (function) |
d5db4077 | 629 | ? (char *) SDATA (SYMBOL_NAME (function)) |
bc78232c | 630 | : "command")); |
d455db8e | 631 | args[i] = XVECTOR (keys)->contents[next_event++]; |
e5d77022 | 632 | varies[i] = -1; |
dbc4e1c1 JB |
633 | |
634 | /* Find the next parameterized event. */ | |
d455db8e | 635 | while (next_event < key_count |
dbc4e1c1 | 636 | && ! (EVENT_HAS_PARAMETERS |
d455db8e | 637 | (XVECTOR (keys)->contents[next_event]))) |
dbc4e1c1 JB |
638 | next_event++; |
639 | ||
63007de2 JB |
640 | break; |
641 | ||
ec28a64d | 642 | case 'm': /* Value of mark. Does not do I/O. */ |
f203cf07 | 643 | check_mark (0); |
ec28a64d | 644 | /* visargs[i] = Qnil; */ |
824977b6 | 645 | args[i] = current_buffer->mark; |
ec28a64d MB |
646 | varies[i] = 2; |
647 | break; | |
648 | ||
93fb51ae KH |
649 | case 'M': /* String read via minibuffer with |
650 | inheriting the current input method. */ | |
651 | args[i] = Fread_string (build_string (callint_message), | |
652 | Qnil, Qnil, Qnil, Qt); | |
653 | break; | |
654 | ||
ec28a64d | 655 | case 'N': /* Prefix arg, else number from minibuffer */ |
265a9e55 | 656 | if (!NILP (prefix_arg)) |
ec28a64d MB |
657 | goto have_prefix_arg; |
658 | case 'n': /* Read number from minibuffer. */ | |
f0490a0b RS |
659 | { |
660 | int first = 1; | |
661 | do | |
662 | { | |
663 | Lisp_Object tem; | |
664 | if (! first) | |
665 | { | |
666 | message ("Please enter a number."); | |
56fe6fc0 | 667 | sit_for (1, 0, 0, 0, 0); |
f0490a0b RS |
668 | } |
669 | first = 0; | |
670 | ||
671 | tem = Fread_from_minibuffer (build_string (callint_message), | |
93fb51ae KH |
672 | Qnil, Qnil, Qnil, Qnil, Qnil, |
673 | Qnil); | |
d5db4077 | 674 | if (! STRINGP (tem) || SCHARS (tem) == 0) |
f0490a0b RS |
675 | args[i] = Qnil; |
676 | else | |
677 | args[i] = Fread (tem); | |
678 | } | |
679 | while (! NUMBERP (args[i])); | |
680 | } | |
ec28a64d MB |
681 | visargs[i] = last_minibuf_string; |
682 | break; | |
683 | ||
684 | case 'P': /* Prefix arg in raw form. Does no I/O. */ | |
ec28a64d MB |
685 | args[i] = prefix_arg; |
686 | /* visargs[i] = Qnil; */ | |
687 | varies[i] = -1; | |
688 | break; | |
689 | ||
690 | case 'p': /* Prefix arg converted to number. No I/O. */ | |
71eda2d5 | 691 | have_prefix_arg: |
ec28a64d MB |
692 | args[i] = Fprefix_numeric_value (prefix_arg); |
693 | /* visargs[i] = Qnil; */ | |
694 | varies[i] = -1; | |
695 | break; | |
696 | ||
697 | case 'r': /* Region, point and mark as 2 args. */ | |
f203cf07 | 698 | check_mark (1); |
dc330139 | 699 | set_marker_both (point_marker, Qnil, PT, PT_BYTE); |
ec28a64d MB |
700 | /* visargs[i+1] = Qnil; */ |
701 | foo = marker_position (current_buffer->mark); | |
702 | /* visargs[i] = Qnil; */ | |
6ec8bbd2 | 703 | args[i] = PT < foo ? point_marker : current_buffer->mark; |
ec28a64d | 704 | varies[i] = 3; |
6ec8bbd2 | 705 | args[++i] = PT > foo ? point_marker : current_buffer->mark; |
ec28a64d MB |
706 | varies[i] = 4; |
707 | break; | |
708 | ||
93fb51ae KH |
709 | case 's': /* String read via minibuffer without |
710 | inheriting the current input method. */ | |
55c4d99f | 711 | args[i] = Fread_string (build_string (callint_message), |
93fb51ae | 712 | Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
713 | break; |
714 | ||
715 | case 'S': /* Any symbol. */ | |
df31bc64 | 716 | visargs[i] = Fread_string (build_string (callint_message), |
93fb51ae | 717 | Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
718 | /* Passing args[i] directly stimulates compiler bug */ |
719 | teml = visargs[i]; | |
720 | args[i] = Fintern (teml, Qnil); | |
721 | break; | |
722 | ||
723 | case 'v': /* Variable name: symbol that is | |
724 | user-variable-p. */ | |
ff9cd111 | 725 | args[i] = Fread_variable (build_string (callint_message), Qnil); |
ec28a64d MB |
726 | visargs[i] = last_minibuf_string; |
727 | break; | |
728 | ||
729 | case 'x': /* Lisp expression read but not evaluated */ | |
df31bc64 | 730 | args[i] = Fread_minibuffer (build_string (callint_message), Qnil); |
ec28a64d MB |
731 | visargs[i] = last_minibuf_string; |
732 | break; | |
733 | ||
734 | case 'X': /* Lisp expression read and evaluated */ | |
df31bc64 | 735 | args[i] = Feval_minibuffer (build_string (callint_message), Qnil); |
ec28a64d MB |
736 | visargs[i] = last_minibuf_string; |
737 | break; | |
738 | ||
40b2421c KH |
739 | case 'Z': /* Coding-system symbol, or ignore the |
740 | argument if no prefix */ | |
741 | if (NILP (prefix_arg)) | |
742 | { | |
743 | args[i] = Qnil; | |
744 | varies[i] = -1; | |
745 | } | |
177c0ea7 | 746 | else |
40b2421c KH |
747 | { |
748 | args[i] | |
749 | = Fread_non_nil_coding_system (build_string (callint_message)); | |
750 | visargs[i] = last_minibuf_string; | |
751 | } | |
752 | break; | |
753 | ||
754 | case 'z': /* Coding-system symbol or nil */ | |
024d8713 | 755 | args[i] = Fread_coding_system (build_string (callint_message), Qnil); |
40b2421c KH |
756 | visargs[i] = last_minibuf_string; |
757 | break; | |
758 | ||
e92d107b RS |
759 | /* We have a case for `+' so we get an error |
760 | if anyone tries to define one here. */ | |
761 | case '+': | |
ec28a64d | 762 | default: |
e92d107b | 763 | error ("Invalid control letter `%c' (%03o) in interactive calling string", |
ec28a64d MB |
764 | *tem, *tem); |
765 | } | |
766 | ||
767 | if (varies[i] == 0) | |
768 | arg_from_tty = 1; | |
769 | ||
6e54b3de | 770 | if (NILP (visargs[i]) && STRINGP (args[i])) |
ec28a64d MB |
771 | visargs[i] = args[i]; |
772 | ||
773 | tem = (unsigned char *) index (tem, '\n'); | |
774 | if (tem) tem++; | |
775 | else tem = (unsigned char *) ""; | |
776 | } | |
52614803 | 777 | unbind_to (speccount, Qnil); |
ec28a64d MB |
778 | |
779 | QUIT; | |
780 | ||
781 | args[0] = function; | |
782 | ||
7868a977 | 783 | if (arg_from_tty || !NILP (record_flag)) |
ec28a64d MB |
784 | { |
785 | visargs[0] = function; | |
63007de2 | 786 | for (i = 1; i < count + 1; i++) |
824977b6 RS |
787 | { |
788 | if (varies[i] > 0) | |
789 | visargs[i] = Fcons (intern (callint_argfuns[varies[i]]), Qnil); | |
790 | else | |
791 | visargs[i] = quotify_arg (args[i]); | |
792 | } | |
ec28a64d MB |
793 | Vcommand_history = Fcons (Flist (count + 1, visargs), |
794 | Vcommand_history); | |
225c2157 | 795 | /* Don't keep command history around forever. */ |
b9f0b172 | 796 | if (INTEGERP (Vhistory_length) && XINT (Vhistory_length) > 0) |
225c2157 RS |
797 | { |
798 | teml = Fnthcdr (Vhistory_length, Vcommand_history); | |
799 | if (CONSP (teml)) | |
f3fbd155 | 800 | XSETCDR (teml, Qnil); |
225c2157 | 801 | } |
ec28a64d MB |
802 | } |
803 | ||
824977b6 RS |
804 | /* If we used a marker to hold point, mark, or an end of the region, |
805 | temporarily, convert it to an integer now. */ | |
f4c8ded2 | 806 | for (i = 1; i <= count; i++) |
824977b6 RS |
807 | if (varies[i] >= 1 && varies[i] <= 4) |
808 | XSETINT (args[i], marker_position (args[i])); | |
809 | ||
09c886dc RS |
810 | if (record_then_fail) |
811 | Fbarf_if_buffer_read_only (); | |
812 | ||
652e2240 | 813 | single_kboard_state (); |
ebfbe249 | 814 | |
ec28a64d MB |
815 | { |
816 | Lisp_Object val; | |
ec28a64d MB |
817 | specbind (Qcommand_debug_status, Qnil); |
818 | ||
819 | val = Ffuncall (count + 1, args); | |
820 | UNGCPRO; | |
821 | return unbind_to (speccount, val); | |
822 | } | |
177c0ea7 | 823 | } |
ec28a64d MB |
824 | |
825 | DEFUN ("prefix-numeric-value", Fprefix_numeric_value, Sprefix_numeric_value, | |
fdb82f93 PJ |
826 | 1, 1, 0, |
827 | doc: /* Return numeric meaning of raw prefix argument RAW. | |
828 | A raw prefix argument is what you get from `(interactive "P")'. | |
829 | Its numeric meaning is what you would get from `(interactive "p")'. */) | |
830 | (raw) | |
ec28a64d MB |
831 | Lisp_Object raw; |
832 | { | |
833 | Lisp_Object val; | |
177c0ea7 | 834 | |
265a9e55 | 835 | if (NILP (raw)) |
acab6442 | 836 | XSETFASTINT (val, 1); |
fd5285f3 | 837 | else if (EQ (raw, Qminus)) |
ec28a64d | 838 | XSETINT (val, -1); |
70949dac KR |
839 | else if (CONSP (raw) && INTEGERP (XCAR (raw))) |
840 | XSETINT (val, XINT (XCAR (raw))); | |
6e54b3de | 841 | else if (INTEGERP (raw)) |
ec28a64d MB |
842 | val = raw; |
843 | else | |
acab6442 | 844 | XSETFASTINT (val, 1); |
ec28a64d MB |
845 | |
846 | return val; | |
847 | } | |
848 | ||
dfcf069d | 849 | void |
ec28a64d MB |
850 | syms_of_callint () |
851 | { | |
824977b6 RS |
852 | point_marker = Fmake_marker (); |
853 | staticpro (&point_marker); | |
854 | ||
03e130d5 RS |
855 | preserved_fns = Fcons (intern ("region-beginning"), |
856 | Fcons (intern ("region-end"), | |
857 | Fcons (intern ("point"), | |
858 | Fcons (intern ("mark"), Qnil)))); | |
859 | staticpro (&preserved_fns); | |
860 | ||
861 | Qlist = intern ("list"); | |
862 | staticpro (&Qlist); | |
8450690a RS |
863 | Qlet = intern ("let"); |
864 | staticpro (&Qlet); | |
865 | Qletx = intern ("let*"); | |
866 | staticpro (&Qletx); | |
867 | Qsave_excursion = intern ("save-excursion"); | |
868 | staticpro (&Qsave_excursion); | |
079e479f RS |
869 | Qprogn = intern ("progn"); |
870 | staticpro (&Qprogn); | |
03e130d5 | 871 | |
ec28a64d MB |
872 | Qminus = intern ("-"); |
873 | staticpro (&Qminus); | |
874 | ||
fdb4a38c RS |
875 | Qplus = intern ("+"); |
876 | staticpro (&Qplus); | |
877 | ||
ec28a64d MB |
878 | Qcall_interactively = intern ("call-interactively"); |
879 | staticpro (&Qcall_interactively); | |
880 | ||
881 | Qcommand_debug_status = intern ("command-debug-status"); | |
882 | staticpro (&Qcommand_debug_status); | |
883 | ||
52614803 RS |
884 | Qenable_recursive_minibuffers = intern ("enable-recursive-minibuffers"); |
885 | staticpro (&Qenable_recursive_minibuffers); | |
886 | ||
ef2515c0 RS |
887 | Qmouse_leave_buffer_hook = intern ("mouse-leave-buffer-hook"); |
888 | staticpro (&Qmouse_leave_buffer_hook); | |
889 | ||
df31bc64 RS |
890 | callint_message_size = 100; |
891 | callint_message = (char *) xmalloc (callint_message_size); | |
892 | ||
893 | ||
1e0c5826 | 894 | DEFVAR_KBOARD ("prefix-arg", Vprefix_arg, |
fdb82f93 PJ |
895 | doc: /* The value of the prefix argument for the next editing command. |
896 | It may be a number, or the symbol `-' for just a minus sign as arg, | |
897 | or a list whose car is a number for just one or more C-u's | |
898 | or nil if no argument has been specified. | |
899 | ||
900 | You cannot examine this variable to find the argument for this command | |
901 | since it has been set to nil by the time you can look. | |
902 | Instead, you should use the variable `current-prefix-arg', although | |
903 | normally commands can get this prefix argument with (interactive "P"). */); | |
8c917bf2 | 904 | |
fe3fbdcc | 905 | DEFVAR_KBOARD ("last-prefix-arg", Vlast_prefix_arg, |
fdb82f93 PJ |
906 | doc: /* The value of the prefix argument for the previous editing command. |
907 | See `prefix-arg' for the meaning of the value. */); | |
fe3fbdcc | 908 | |
8c917bf2 | 909 | DEFVAR_LISP ("current-prefix-arg", &Vcurrent_prefix_arg, |
fdb82f93 PJ |
910 | doc: /* The value of the prefix argument for this editing command. |
911 | It may be a number, or the symbol `-' for just a minus sign as arg, | |
912 | or a list whose car is a number for just one or more C-u's | |
913 | or nil if no argument has been specified. | |
914 | This is what `(interactive \"P\")' returns. */); | |
8c917bf2 KH |
915 | Vcurrent_prefix_arg = Qnil; |
916 | ||
ec28a64d | 917 | DEFVAR_LISP ("command-history", &Vcommand_history, |
fdb82f93 PJ |
918 | doc: /* List of recent commands that read arguments from terminal. |
919 | Each command is represented as a form to evaluate. */); | |
ec28a64d MB |
920 | Vcommand_history = Qnil; |
921 | ||
922 | DEFVAR_LISP ("command-debug-status", &Vcommand_debug_status, | |
fdb82f93 PJ |
923 | doc: /* Debugging status of current interactive command. |
924 | Bound each time `call-interactively' is called; | |
925 | may be set by the debugger as a reminder for itself. */); | |
ec28a64d MB |
926 | Vcommand_debug_status = Qnil; |
927 | ||
2ad6c959 | 928 | DEFVAR_LISP ("mark-even-if-inactive", &Vmark_even_if_inactive, |
fdb82f93 PJ |
929 | doc: /* *Non-nil means you can use the mark even when inactive. |
930 | This option makes a difference in Transient Mark mode. | |
931 | When the option is non-nil, deactivation of the mark | |
932 | turns off region highlighting, but commands that use the mark | |
933 | behave as if the mark were still active. */); | |
9f315aeb RS |
934 | Vmark_even_if_inactive = Qnil; |
935 | ||
ef2515c0 | 936 | DEFVAR_LISP ("mouse-leave-buffer-hook", &Vmouse_leave_buffer_hook, |
fdb82f93 PJ |
937 | doc: /* Hook to run when about to switch windows with a mouse command. |
938 | Its purpose is to give temporary modes such as Isearch mode | |
939 | a way to turn themselves off when a mouse command switches windows. */); | |
ef2515c0 RS |
940 | Vmouse_leave_buffer_hook = Qnil; |
941 | ||
ec28a64d MB |
942 | defsubr (&Sinteractive); |
943 | defsubr (&Scall_interactively); | |
944 | defsubr (&Sprefix_numeric_value); | |
945 | } |