Commit | Line | Data |
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ec28a64d | 1 | /* Call a Lisp function interactively. |
4f895918 GM |
2 | Copyright (C) 1985, 86, 93, 94, 95, 1997, 2000 |
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> |
ec28a64d MB |
24 | #include "lisp.h" |
25 | #include "buffer.h" | |
26 | #include "commands.h" | |
760cbdd3 | 27 | #include "keyboard.h" |
ec28a64d MB |
28 | #include "window.h" |
29 | #include "mocklisp.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 RS |
36 | extern Lisp_Object Qcursor_in_echo_area; |
37 | ||
1e0c5826 | 38 | Lisp_Object Vcurrent_prefix_arg, Qminus, Qplus; |
ec28a64d MB |
39 | Lisp_Object Qcall_interactively; |
40 | Lisp_Object Vcommand_history; | |
41 | ||
225c2157 RS |
42 | extern Lisp_Object Vhistory_length; |
43 | ||
ec28a64d | 44 | Lisp_Object Vcommand_debug_status, Qcommand_debug_status; |
52614803 | 45 | Lisp_Object Qenable_recursive_minibuffers; |
ec28a64d | 46 | |
9f315aeb RS |
47 | /* Non-nil means treat the mark as active |
48 | even if mark_active is 0. */ | |
49 | Lisp_Object Vmark_even_if_inactive; | |
50 | ||
ef2515c0 RS |
51 | Lisp_Object Vmouse_leave_buffer_hook, Qmouse_leave_buffer_hook; |
52 | ||
8450690a | 53 | Lisp_Object Qlist, Qlet, Qletx, Qsave_excursion; |
824977b6 RS |
54 | static Lisp_Object preserved_fns; |
55 | ||
56 | /* Marker used within call-interactively to refer to point. */ | |
57 | static Lisp_Object point_marker; | |
03e130d5 | 58 | |
df31bc64 RS |
59 | /* Buffer for the prompt text used in Fcall_interactively. */ |
60 | static char *callint_message; | |
61 | ||
62 | /* Allocated length of that buffer. */ | |
63 | static int callint_message_size; | |
1cf9cfc6 | 64 | |
ec28a64d MB |
65 | /* This comment supplies the doc string for interactive, |
66 | for make-docfile to see. We cannot put this in the real DEFUN | |
67 | due to limits in the Unix cpp. | |
68 | ||
69 | DEFUN ("interactive", Ffoo, Sfoo, 0, 0, 0, | |
70 | "Specify a way of parsing arguments for interactive use of a function.\n\ | |
71 | For example, write\n\ | |
72 | (defun foo (arg) \"Doc string\" (interactive \"p\") ...use arg...)\n\ | |
73 | to make ARG be the prefix argument when `foo' is called as a command.\n\ | |
74 | The \"call\" to `interactive' is actually a declaration rather than a function;\n\ | |
75 | it tells `call-interactively' how to read arguments\n\ | |
76 | to pass to the function.\n\ | |
77 | When actually called, `interactive' just returns nil.\n\ | |
78 | \n\ | |
79 | The argument of `interactive' is usually a string containing a code letter\n\ | |
80 | followed by a prompt. (Some code letters do not use I/O to get\n\ | |
81 | the argument and do not need prompts.) To prompt for multiple arguments,\n\ | |
82 | give a code letter, its prompt, a newline, and another code letter, etc.\n\ | |
83 | Prompts are passed to format, and may use % escapes to print the\n\ | |
84 | arguments that have already been read.\n\ | |
85 | If the argument is not a string, it is evaluated to get a list of\n\ | |
86 | arguments to pass to the function.\n\ | |
87 | Just `(interactive)' means pass no args when calling interactively.\n\ | |
88 | \nCode letters available are:\n\ | |
89 | a -- Function name: symbol with a function definition.\n\ | |
90 | b -- Name of existing buffer.\n\ | |
91 | B -- Name of buffer, possibly nonexistent.\n\ | |
24819c43 | 92 | c -- Character (no input method is used).\n\ |
ec28a64d MB |
93 | C -- Command name: symbol with interactive function definition.\n\ |
94 | d -- Value of point as number. Does not do I/O.\n\ | |
95 | D -- Directory name.\n\ | |
4d1f43c0 RS |
96 | e -- Parametrized event (i.e., one that's a list) that invoked this command.\n\ |
97 | If used more than once, the Nth `e' returns the Nth parameterized event.\n\ | |
98 | This skips events that are integers or symbols.\n\ | |
ec28a64d MB |
99 | f -- Existing file name.\n\ |
100 | F -- Possibly nonexistent file name.\n\ | |
40b2421c | 101 | i -- Ignored, i.e. always nil. Does not do I/O.\n\ |
b631003b RS |
102 | k -- Key sequence (downcase the last event if needed to get a definition).\n\ |
103 | K -- Key sequence to be redefined (do not downcase the last event).\n\ | |
ec28a64d | 104 | m -- Value of mark as number. Does not do I/O.\n\ |
93fb51ae | 105 | M -- Any string. Inherits the current input method.\n\ |
ec28a64d | 106 | n -- Number read using minibuffer.\n\ |
701ca6c0 | 107 | N -- Raw prefix arg, or if none, do like code `n'.\n\ |
ec28a64d MB |
108 | p -- Prefix arg converted to number. Does not do I/O.\n\ |
109 | P -- Prefix arg in raw form. Does not do I/O.\n\ | |
110 | r -- Region: point and mark as 2 numeric args, smallest first. Does no I/O.\n\ | |
93fb51ae | 111 | s -- Any string. Does not inherit the current input method.\n\ |
ec28a64d MB |
112 | S -- Any symbol.\n\ |
113 | v -- Variable name: symbol that is user-variable-p.\n\ | |
114 | x -- Lisp expression read but not evaluated.\n\ | |
115 | X -- Lisp expression read and evaluated.\n\ | |
40b2421c KH |
116 | z -- Coding system.\n\ |
117 | Z -- Coding system, nil if no prefix arg.\n\ | |
ec28a64d MB |
118 | In addition, if the string begins with `*'\n\ |
119 | then an error is signaled if the buffer is read-only.\n\ | |
120 | This happens before reading any arguments.\n\ | |
dbc4e1c1 JB |
121 | If the string begins with `@', then Emacs searches the key sequence\n\ |
122 | which invoked the command for its first mouse click (or any other\n\ | |
123 | event which specifies a window), and selects that window before\n\ | |
124 | reading any arguments. You may use both `@' and `*'; they are\n\ | |
125 | processed in the order that they appear." */ | |
ec28a64d MB |
126 | |
127 | /* ARGSUSED */ | |
128 | DEFUN ("interactive", Finteractive, Sinteractive, 0, UNEVALLED, 0, | |
129 | 0 /* See immediately above */) | |
130 | (args) | |
131 | Lisp_Object args; | |
132 | { | |
133 | return Qnil; | |
134 | } | |
135 | ||
136 | /* Quotify EXP: if EXP is constant, return it. | |
137 | If EXP is not constant, return (quote EXP). */ | |
138 | Lisp_Object | |
139 | quotify_arg (exp) | |
140 | register Lisp_Object exp; | |
141 | { | |
6e54b3de | 142 | if (!INTEGERP (exp) && !STRINGP (exp) |
265a9e55 | 143 | && !NILP (exp) && !EQ (exp, Qt)) |
ec28a64d MB |
144 | return Fcons (Qquote, Fcons (exp, Qnil)); |
145 | ||
146 | return exp; | |
147 | } | |
148 | ||
149 | /* Modify EXP by quotifying each element (except the first). */ | |
150 | Lisp_Object | |
151 | quotify_args (exp) | |
152 | Lisp_Object exp; | |
153 | { | |
154 | register Lisp_Object tail; | |
7539e11f KR |
155 | Lisp_Object next; |
156 | for (tail = exp; CONSP (tail); tail = next) | |
ec28a64d | 157 | { |
7539e11f | 158 | next = XCDR (tail); |
f3fbd155 | 159 | XSETCAR (tail, quotify_arg (XCAR (tail))); |
ec28a64d MB |
160 | } |
161 | return exp; | |
162 | } | |
163 | ||
164 | char *callint_argfuns[] | |
165 | = {"", "point", "mark", "region-beginning", "region-end"}; | |
166 | ||
167 | static void | |
168 | check_mark () | |
169 | { | |
86c1cf23 KH |
170 | Lisp_Object tem; |
171 | tem = Fmarker_buffer (current_buffer->mark); | |
265a9e55 | 172 | if (NILP (tem) || (XBUFFER (tem) != current_buffer)) |
ec28a64d | 173 | error ("The mark is not set now"); |
6497d2d8 RM |
174 | if (!NILP (Vtransient_mark_mode) && NILP (Vmark_even_if_inactive) |
175 | && NILP (current_buffer->mark_active)) | |
176 | Fsignal (Qmark_inactive, Qnil); | |
ec28a64d MB |
177 | } |
178 | ||
179 | ||
d455db8e | 180 | DEFUN ("call-interactively", Fcall_interactively, Scall_interactively, 1, 3, 0, |
ec28a64d | 181 | "Call FUNCTION, reading args according to its interactive calling specs.\n\ |
994662ce | 182 | Return the value FUNCTION returns.\n\ |
ec28a64d MB |
183 | The function contains a specification of how to do the argument reading.\n\ |
184 | In the case of user-defined functions, this is specified by placing a call\n\ | |
185 | to the function `interactive' at the top level of the function body.\n\ | |
186 | See `interactive'.\n\ | |
187 | \n\ | |
188 | Optional second arg RECORD-FLAG non-nil\n\ | |
189 | means unconditionally put this command in the command-history.\n\ | |
824b5cfc DL |
190 | Otherwise, this is done only if an arg is read using the minibuffer.\n\ |
191 | Optional third arg KEYS, if given, specifies the sequence of events to\n\ | |
192 | supply if the command inquires which events were used to invoke it.") | |
7868a977 EN |
193 | (function, record_flag, keys) |
194 | Lisp_Object function, record_flag, keys; | |
ec28a64d MB |
195 | { |
196 | Lisp_Object *args, *visargs; | |
197 | unsigned char **argstrings; | |
198 | Lisp_Object fun; | |
199 | Lisp_Object funcar; | |
200 | Lisp_Object specs; | |
201 | Lisp_Object teml; | |
52614803 RS |
202 | Lisp_Object enable; |
203 | int speccount = specpdl_ptr - specpdl; | |
ec28a64d | 204 | |
bc78232c JB |
205 | /* The index of the next element of this_command_keys to examine for |
206 | the 'e' interactive code. */ | |
dbc4e1c1 | 207 | int next_event; |
bc78232c | 208 | |
ec28a64d MB |
209 | Lisp_Object prefix_arg; |
210 | unsigned char *string; | |
211 | unsigned char *tem; | |
63007de2 JB |
212 | |
213 | /* If varies[i] > 0, the i'th argument shouldn't just have its value | |
214 | in this call quoted in the command history. It should be | |
215 | recorded as a call to the function named callint_argfuns[varies[i]]. */ | |
ec28a64d | 216 | int *varies; |
63007de2 | 217 | |
ec28a64d MB |
218 | register int i, j; |
219 | int count, foo; | |
ec28a64d MB |
220 | char prompt1[100]; |
221 | char *tem1; | |
222 | int arg_from_tty = 0; | |
223 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
d455db8e RS |
224 | int key_count; |
225 | ||
226 | if (NILP (keys)) | |
227 | keys = this_command_keys, key_count = this_command_key_count; | |
228 | else | |
229 | { | |
230 | CHECK_VECTOR (keys, 3); | |
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; | |
248 | ||
249 | /* Decode the kind of function. Either handle it and return, | |
250 | or go to `lose' if not interactive, or go to `retry' | |
251 | to specify a different function, or set either STRING or SPECS. */ | |
252 | ||
6e54b3de | 253 | if (SUBRP (fun)) |
ec28a64d MB |
254 | { |
255 | string = (unsigned char *) XSUBR (fun)->prompt; | |
256 | if (!string) | |
257 | { | |
258 | lose: | |
b37902c8 | 259 | function = wrong_type_argument (Qcommandp, function); |
ec28a64d MB |
260 | goto retry; |
261 | } | |
ec28a64d | 262 | } |
6e54b3de | 263 | else if (COMPILEDP (fun)) |
ec28a64d | 264 | { |
f9b4aacf | 265 | if ((XVECTOR (fun)->size & PSEUDOVECTOR_SIZE_MASK) <= COMPILED_INTERACTIVE) |
ec28a64d MB |
266 | goto lose; |
267 | specs = XVECTOR (fun)->contents[COMPILED_INTERACTIVE]; | |
268 | } | |
269 | else if (!CONSP (fun)) | |
270 | goto lose; | |
01e85d61 | 271 | else if (funcar = XCAR (fun), EQ (funcar, Qautoload)) |
ec28a64d MB |
272 | { |
273 | GCPRO2 (function, prefix_arg); | |
274 | do_autoload (fun, function); | |
275 | UNGCPRO; | |
276 | goto retry; | |
277 | } | |
278 | else if (EQ (funcar, Qlambda)) | |
279 | { | |
01e85d61 | 280 | specs = Fassq (Qinteractive, Fcdr (XCDR (fun))); |
265a9e55 | 281 | if (NILP (specs)) |
ec28a64d MB |
282 | goto lose; |
283 | specs = Fcar (Fcdr (specs)); | |
284 | } | |
285 | else if (EQ (funcar, Qmocklisp)) | |
887e0cba | 286 | { |
652e2240 | 287 | single_kboard_state (); |
887e0cba KH |
288 | return ml_apply (fun, Qinteractive); |
289 | } | |
ec28a64d MB |
290 | else |
291 | goto lose; | |
292 | ||
46947372 | 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. */ | |
fc932ac6 RS |
298 | string = (unsigned char *) alloca (STRING_BYTES (XSTRING (specs)) + 1); |
299 | bcopy (XSTRING (specs)->data, string, | |
300 | STRING_BYTES (XSTRING (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. */ | |
6bc1abf2 | 308 | specs = Feval (specs); |
91a6ba78 | 309 | if (i != num_input_events || !NILP (record_flag)) |
03e130d5 RS |
310 | { |
311 | /* We should record this command on the command history. */ | |
312 | Lisp_Object values, car; | |
313 | /* Make a copy of the list of values, for the command history, | |
314 | and turn them into things we can eval. */ | |
315 | values = quotify_args (Fcopy_sequence (specs)); | |
316 | /* If the list of args was produced with an explicit call to `list', | |
317 | look for elements that were computed with (region-beginning) | |
318 | or (region-end), and put those expressions into VALUES | |
319 | instead of the present values. */ | |
8450690a | 320 | if (CONSP (input)) |
03e130d5 | 321 | { |
70949dac | 322 | car = XCAR (input); |
8450690a RS |
323 | /* Skip through certain special forms. */ |
324 | while (EQ (car, Qlet) || EQ (car, Qletx) | |
325 | || EQ (car, Qsave_excursion)) | |
03e130d5 | 326 | { |
70949dac KR |
327 | while (CONSP (XCDR (input))) |
328 | input = XCDR (input); | |
329 | input = XCAR (input); | |
8450690a RS |
330 | if (!CONSP (input)) |
331 | break; | |
70949dac | 332 | car = XCAR (input); |
8450690a RS |
333 | } |
334 | if (EQ (car, Qlist)) | |
335 | { | |
336 | Lisp_Object intail, valtail; | |
337 | for (intail = Fcdr (input), valtail = values; | |
338 | CONSP (valtail); | |
339 | intail = Fcdr (intail), valtail = Fcdr (valtail)) | |
03e130d5 | 340 | { |
8450690a RS |
341 | Lisp_Object elt; |
342 | elt = Fcar (intail); | |
343 | if (CONSP (elt)) | |
344 | { | |
345 | Lisp_Object presflag; | |
346 | presflag = Fmemq (Fcar (elt), preserved_fns); | |
347 | if (!NILP (presflag)) | |
348 | Fsetcar (valtail, Fcar (intail)); | |
349 | } | |
03e130d5 RS |
350 | } |
351 | } | |
352 | } | |
353 | Vcommand_history | |
354 | = Fcons (Fcons (function, values), Vcommand_history); | |
225c2157 RS |
355 | |
356 | /* Don't keep command history around forever. */ | |
357 | if (NUMBERP (Vhistory_length) && XINT (Vhistory_length) > 0) | |
358 | { | |
359 | teml = Fnthcdr (Vhistory_length, Vcommand_history); | |
360 | if (CONSP (teml)) | |
f3fbd155 | 361 | XSETCDR (teml, Qnil); |
225c2157 | 362 | } |
03e130d5 | 363 | } |
652e2240 | 364 | single_kboard_state (); |
ec28a64d MB |
365 | return apply1 (function, specs); |
366 | } | |
367 | ||
368 | /* Here if function specifies a string to control parsing the defaults */ | |
369 | ||
dbc4e1c1 | 370 | /* Set next_event to point to the first event with parameters. */ |
d455db8e RS |
371 | for (next_event = 0; next_event < key_count; next_event++) |
372 | if (EVENT_HAS_PARAMETERS (XVECTOR (keys)->contents[next_event])) | |
dbc4e1c1 JB |
373 | break; |
374 | ||
42bb2790 | 375 | /* Handle special starting chars `*' and `@'. Also `-'. */ |
e92d107b | 376 | /* Note that `+' is reserved for user extensions. */ |
ec28a64d MB |
377 | while (1) |
378 | { | |
fb775602 | 379 | if (*string == '+') |
e92d107b RS |
380 | error ("`+' is not used in `interactive' for ordinary commands"); |
381 | else if (*string == '*') | |
ec28a64d MB |
382 | { |
383 | string++; | |
265a9e55 | 384 | if (!NILP (current_buffer->read_only)) |
ec28a64d MB |
385 | Fbarf_if_buffer_read_only (); |
386 | } | |
42bb2790 RS |
387 | /* Ignore this for semi-compatibility with Lucid. */ |
388 | else if (*string == '-') | |
389 | string++; | |
ec28a64d MB |
390 | else if (*string == '@') |
391 | { | |
86c1cf23 | 392 | Lisp_Object event; |
dbc4e1c1 | 393 | |
d455db8e | 394 | event = XVECTOR (keys)->contents[next_event]; |
dbc4e1c1 | 395 | if (EVENT_HAS_PARAMETERS (event) |
70949dac KR |
396 | && (event = XCDR (event), CONSP (event)) |
397 | && (event = XCAR (event), CONSP (event)) | |
398 | && (event = XCAR (event), WINDOWP (event))) | |
d1fa2e8a | 399 | { |
d68807fc | 400 | if (MINI_WINDOW_P (XWINDOW (event)) |
42bb2790 | 401 | && ! (minibuf_level > 0 && EQ (event, minibuf_window))) |
d1fa2e8a | 402 | error ("Attempt to select inactive minibuffer window"); |
ef2515c0 RS |
403 | |
404 | /* If the current buffer wants to clean up, let it. */ | |
405 | if (!NILP (Vmouse_leave_buffer_hook)) | |
406 | call1 (Vrun_hooks, Qmouse_leave_buffer_hook); | |
407 | ||
d1fa2e8a KH |
408 | Fselect_window (event); |
409 | } | |
ec28a64d | 410 | string++; |
ec28a64d MB |
411 | } |
412 | else break; | |
413 | } | |
414 | ||
415 | /* Count the number of arguments the interactive spec would have | |
416 | us give to the function. */ | |
417 | tem = string; | |
418 | for (j = 0; *tem; j++) | |
419 | { | |
420 | /* 'r' specifications ("point and mark as 2 numeric args") | |
421 | produce *two* arguments. */ | |
422 | if (*tem == 'r') j++; | |
423 | tem = (unsigned char *) index (tem, '\n'); | |
424 | if (tem) | |
425 | tem++; | |
426 | else | |
427 | tem = (unsigned char *) ""; | |
428 | } | |
6bc1abf2 | 429 | count = j; |
ec28a64d MB |
430 | |
431 | args = (Lisp_Object *) alloca ((count + 1) * sizeof (Lisp_Object)); | |
432 | visargs = (Lisp_Object *) alloca ((count + 1) * sizeof (Lisp_Object)); | |
433 | argstrings = (unsigned char **) alloca ((count + 1) * sizeof (char *)); | |
434 | varies = (int *) alloca ((count + 1) * sizeof (int)); | |
435 | ||
436 | for (i = 0; i < (count + 1); i++) | |
437 | { | |
438 | args[i] = Qnil; | |
439 | visargs[i] = Qnil; | |
440 | varies[i] = 0; | |
441 | } | |
442 | ||
443 | GCPRO4 (prefix_arg, function, *args, *visargs); | |
444 | gcpro3.nvars = (count + 1); | |
445 | gcpro4.nvars = (count + 1); | |
446 | ||
52614803 RS |
447 | if (!NILP (enable)) |
448 | specbind (Qenable_recursive_minibuffers, Qt); | |
449 | ||
ec28a64d | 450 | tem = string; |
6bc1abf2 | 451 | for (i = 1; *tem; i++) |
ec28a64d MB |
452 | { |
453 | strncpy (prompt1, tem + 1, sizeof prompt1 - 1); | |
454 | prompt1[sizeof prompt1 - 1] = 0; | |
a847af86 | 455 | tem1 = (char *) index (prompt1, '\n'); |
ec28a64d MB |
456 | if (tem1) *tem1 = 0; |
457 | /* Fill argstrings with a vector of C strings | |
458 | corresponding to the Lisp strings in visargs. */ | |
459 | for (j = 1; j < i; j++) | |
460 | argstrings[j] | |
dc330139 RS |
461 | = (EQ (visargs[j], Qnil) |
462 | ? (unsigned char *) "" | |
463 | : XSTRING (visargs[j])->data); | |
ec28a64d | 464 | |
df31bc64 RS |
465 | /* Process the format-string in prompt1, putting the output |
466 | into callint_message. Make callint_message bigger if necessary. | |
467 | We don't use a buffer on the stack, because the contents | |
468 | need to stay stable for a while. */ | |
469 | while (1) | |
470 | { | |
471 | int nchars = doprnt (callint_message, callint_message_size, | |
472 | prompt1, (char *)0, | |
dc330139 | 473 | j - 1, (char **) argstrings + 1); |
df31bc64 RS |
474 | if (nchars < callint_message_size) |
475 | break; | |
476 | callint_message_size *= 2; | |
477 | callint_message | |
478 | = (char *) xrealloc (callint_message, callint_message_size); | |
479 | } | |
ec28a64d MB |
480 | |
481 | switch (*tem) | |
482 | { | |
483 | case 'a': /* Symbol defined as a function */ | |
df31bc64 | 484 | visargs[i] = Fcompleting_read (build_string (callint_message), |
ff9cd111 | 485 | Vobarray, Qfboundp, Qt, |
93fb51ae | 486 | Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
487 | /* Passing args[i] directly stimulates compiler bug */ |
488 | teml = visargs[i]; | |
489 | args[i] = Fintern (teml, Qnil); | |
490 | break; | |
491 | ||
492 | case 'b': /* Name of existing buffer */ | |
493 | args[i] = Fcurrent_buffer (); | |
494 | if (EQ (selected_window, minibuf_window)) | |
34c5d0ed | 495 | args[i] = Fother_buffer (args[i], Qnil, Qnil); |
df31bc64 | 496 | args[i] = Fread_buffer (build_string (callint_message), args[i], Qt); |
ec28a64d MB |
497 | break; |
498 | ||
499 | case 'B': /* Name of buffer, possibly nonexistent */ | |
df31bc64 | 500 | args[i] = Fread_buffer (build_string (callint_message), |
34c5d0ed | 501 | Fother_buffer (Fcurrent_buffer (), Qnil, Qnil), |
9262fcb6 | 502 | Qnil); |
ec28a64d MB |
503 | break; |
504 | ||
505 | case 'c': /* Character */ | |
562e4a4f | 506 | args[i] = Fread_char (build_string (callint_message), Qnil); |
453ed650 | 507 | message1_nolog ((char *) 0); |
ec28a64d MB |
508 | /* Passing args[i] directly stimulates compiler bug */ |
509 | teml = args[i]; | |
510 | visargs[i] = Fchar_to_string (teml); | |
511 | break; | |
512 | ||
513 | case 'C': /* Command: symbol with interactive function */ | |
df31bc64 | 514 | visargs[i] = Fcompleting_read (build_string (callint_message), |
ff9cd111 | 515 | Vobarray, Qcommandp, |
93fb51ae | 516 | Qt, Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
517 | /* Passing args[i] directly stimulates compiler bug */ |
518 | teml = visargs[i]; | |
519 | args[i] = Fintern (teml, Qnil); | |
520 | break; | |
521 | ||
522 | case 'd': /* Value of point. Does not do I/O. */ | |
dc330139 | 523 | set_marker_both (point_marker, Qnil, PT, PT_BYTE); |
824977b6 | 524 | args[i] = point_marker; |
ec28a64d MB |
525 | /* visargs[i] = Qnil; */ |
526 | varies[i] = 1; | |
527 | break; | |
528 | ||
ec28a64d | 529 | case 'D': /* Directory name. */ |
df31bc64 | 530 | args[i] = Fread_file_name (build_string (callint_message), Qnil, |
ec28a64d MB |
531 | current_buffer->directory, Qlambda, Qnil); |
532 | break; | |
533 | ||
534 | case 'f': /* Existing file name. */ | |
df31bc64 | 535 | args[i] = Fread_file_name (build_string (callint_message), |
ec28a64d MB |
536 | Qnil, Qnil, Qlambda, Qnil); |
537 | break; | |
538 | ||
539 | case 'F': /* Possibly nonexistent file name. */ | |
df31bc64 | 540 | args[i] = Fread_file_name (build_string (callint_message), |
ec28a64d MB |
541 | Qnil, Qnil, Qnil, Qnil); |
542 | break; | |
543 | ||
40b2421c KH |
544 | case 'i': /* Ignore an argument -- Does not do I/O */ |
545 | varies[i] = -1; | |
546 | break; | |
547 | ||
1989e7bc | 548 | case 'k': /* Key sequence. */ |
c631c234 RS |
549 | { |
550 | int speccount1 = specpdl_ptr - specpdl; | |
551 | specbind (Qcursor_in_echo_area, Qt); | |
552 | args[i] = Fread_key_sequence (build_string (callint_message), | |
ad4ac475 | 553 | Qnil, Qnil, Qnil, Qnil); |
c631c234 RS |
554 | unbind_to (speccount1, Qnil); |
555 | teml = args[i]; | |
556 | visargs[i] = Fkey_description (teml); | |
cdfac812 RS |
557 | |
558 | /* If the key sequence ends with a down-event, | |
559 | discard the following up-event. */ | |
560 | teml = Faref (args[i], make_number (XINT (Flength (args[i])) - 1)); | |
561 | if (CONSP (teml)) | |
70949dac | 562 | teml = XCAR (teml); |
cdfac812 RS |
563 | if (SYMBOLP (teml)) |
564 | { | |
565 | Lisp_Object tem2; | |
566 | ||
567 | teml = Fget (teml, intern ("event-symbol-elements")); | |
4b27f17c AS |
568 | /* Ignore first element, which is the base key. */ |
569 | tem2 = Fmemq (intern ("down"), Fcdr (teml)); | |
cdfac812 | 570 | if (! NILP (tem2)) |
7a983715 | 571 | Fread_event (Qnil, Qnil); |
cdfac812 | 572 | } |
c631c234 | 573 | } |
1989e7bc RS |
574 | break; |
575 | ||
576 | case 'K': /* Key sequence to be defined. */ | |
c631c234 RS |
577 | { |
578 | int speccount1 = specpdl_ptr - specpdl; | |
579 | specbind (Qcursor_in_echo_area, Qt); | |
580 | args[i] = Fread_key_sequence (build_string (callint_message), | |
ad4ac475 | 581 | Qnil, Qt, Qnil, Qnil); |
c631c234 RS |
582 | teml = args[i]; |
583 | visargs[i] = Fkey_description (teml); | |
584 | unbind_to (speccount1, Qnil); | |
cdfac812 RS |
585 | |
586 | /* If the key sequence ends with a down-event, | |
587 | discard the following up-event. */ | |
588 | teml = Faref (args[i], make_number (XINT (Flength (args[i])) - 1)); | |
589 | if (CONSP (teml)) | |
70949dac | 590 | teml = XCAR (teml); |
cdfac812 RS |
591 | if (SYMBOLP (teml)) |
592 | { | |
593 | Lisp_Object tem2; | |
594 | ||
595 | teml = Fget (teml, intern ("event-symbol-elements")); | |
4b27f17c AS |
596 | /* Ignore first element, which is the base key. */ |
597 | tem2 = Fmemq (intern ("down"), Fcdr (teml)); | |
cdfac812 | 598 | if (! NILP (tem2)) |
7a983715 | 599 | Fread_event (Qnil, Qnil); |
cdfac812 | 600 | } |
c631c234 | 601 | } |
ec28a64d MB |
602 | break; |
603 | ||
bc78232c | 604 | case 'e': /* The invoking event. */ |
d455db8e | 605 | if (next_event >= key_count) |
bc78232c | 606 | error ("%s must be bound to an event with parameters", |
6e54b3de | 607 | (SYMBOLP (function) |
63007de2 | 608 | ? (char *) XSYMBOL (function)->name->data |
bc78232c | 609 | : "command")); |
d455db8e | 610 | args[i] = XVECTOR (keys)->contents[next_event++]; |
e5d77022 | 611 | varies[i] = -1; |
dbc4e1c1 JB |
612 | |
613 | /* Find the next parameterized event. */ | |
d455db8e | 614 | while (next_event < key_count |
dbc4e1c1 | 615 | && ! (EVENT_HAS_PARAMETERS |
d455db8e | 616 | (XVECTOR (keys)->contents[next_event]))) |
dbc4e1c1 JB |
617 | next_event++; |
618 | ||
63007de2 JB |
619 | break; |
620 | ||
ec28a64d MB |
621 | case 'm': /* Value of mark. Does not do I/O. */ |
622 | check_mark (); | |
623 | /* visargs[i] = Qnil; */ | |
824977b6 | 624 | args[i] = current_buffer->mark; |
ec28a64d MB |
625 | varies[i] = 2; |
626 | break; | |
627 | ||
93fb51ae KH |
628 | case 'M': /* String read via minibuffer with |
629 | inheriting the current input method. */ | |
630 | args[i] = Fread_string (build_string (callint_message), | |
631 | Qnil, Qnil, Qnil, Qt); | |
632 | break; | |
633 | ||
ec28a64d | 634 | case 'N': /* Prefix arg, else number from minibuffer */ |
265a9e55 | 635 | if (!NILP (prefix_arg)) |
ec28a64d MB |
636 | goto have_prefix_arg; |
637 | case 'n': /* Read number from minibuffer. */ | |
f0490a0b RS |
638 | { |
639 | int first = 1; | |
640 | do | |
641 | { | |
642 | Lisp_Object tem; | |
643 | if (! first) | |
644 | { | |
645 | message ("Please enter a number."); | |
56fe6fc0 | 646 | sit_for (1, 0, 0, 0, 0); |
f0490a0b RS |
647 | } |
648 | first = 0; | |
649 | ||
650 | tem = Fread_from_minibuffer (build_string (callint_message), | |
93fb51ae KH |
651 | Qnil, Qnil, Qnil, Qnil, Qnil, |
652 | Qnil); | |
f0490a0b RS |
653 | if (! STRINGP (tem) || XSTRING (tem)->size == 0) |
654 | args[i] = Qnil; | |
655 | else | |
656 | args[i] = Fread (tem); | |
657 | } | |
658 | while (! NUMBERP (args[i])); | |
659 | } | |
ec28a64d MB |
660 | visargs[i] = last_minibuf_string; |
661 | break; | |
662 | ||
663 | case 'P': /* Prefix arg in raw form. Does no I/O. */ | |
ec28a64d MB |
664 | args[i] = prefix_arg; |
665 | /* visargs[i] = Qnil; */ | |
666 | varies[i] = -1; | |
667 | break; | |
668 | ||
669 | case 'p': /* Prefix arg converted to number. No I/O. */ | |
71eda2d5 | 670 | have_prefix_arg: |
ec28a64d MB |
671 | args[i] = Fprefix_numeric_value (prefix_arg); |
672 | /* visargs[i] = Qnil; */ | |
673 | varies[i] = -1; | |
674 | break; | |
675 | ||
676 | case 'r': /* Region, point and mark as 2 args. */ | |
677 | check_mark (); | |
dc330139 | 678 | set_marker_both (point_marker, Qnil, PT, PT_BYTE); |
ec28a64d MB |
679 | /* visargs[i+1] = Qnil; */ |
680 | foo = marker_position (current_buffer->mark); | |
681 | /* visargs[i] = Qnil; */ | |
6ec8bbd2 | 682 | args[i] = PT < foo ? point_marker : current_buffer->mark; |
ec28a64d | 683 | varies[i] = 3; |
6ec8bbd2 | 684 | args[++i] = PT > foo ? point_marker : current_buffer->mark; |
ec28a64d MB |
685 | varies[i] = 4; |
686 | break; | |
687 | ||
93fb51ae KH |
688 | case 's': /* String read via minibuffer without |
689 | inheriting the current input method. */ | |
55c4d99f | 690 | args[i] = Fread_string (build_string (callint_message), |
93fb51ae | 691 | Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
692 | break; |
693 | ||
694 | case 'S': /* Any symbol. */ | |
df31bc64 | 695 | visargs[i] = Fread_string (build_string (callint_message), |
93fb51ae | 696 | Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
697 | /* Passing args[i] directly stimulates compiler bug */ |
698 | teml = visargs[i]; | |
699 | args[i] = Fintern (teml, Qnil); | |
700 | break; | |
701 | ||
702 | case 'v': /* Variable name: symbol that is | |
703 | user-variable-p. */ | |
ff9cd111 | 704 | args[i] = Fread_variable (build_string (callint_message), Qnil); |
ec28a64d MB |
705 | visargs[i] = last_minibuf_string; |
706 | break; | |
707 | ||
708 | case 'x': /* Lisp expression read but not evaluated */ | |
df31bc64 | 709 | args[i] = Fread_minibuffer (build_string (callint_message), Qnil); |
ec28a64d MB |
710 | visargs[i] = last_minibuf_string; |
711 | break; | |
712 | ||
713 | case 'X': /* Lisp expression read and evaluated */ | |
df31bc64 | 714 | args[i] = Feval_minibuffer (build_string (callint_message), Qnil); |
ec28a64d MB |
715 | visargs[i] = last_minibuf_string; |
716 | break; | |
717 | ||
40b2421c KH |
718 | case 'Z': /* Coding-system symbol, or ignore the |
719 | argument if no prefix */ | |
720 | if (NILP (prefix_arg)) | |
721 | { | |
722 | args[i] = Qnil; | |
723 | varies[i] = -1; | |
724 | } | |
725 | else | |
726 | { | |
727 | args[i] | |
728 | = Fread_non_nil_coding_system (build_string (callint_message)); | |
729 | visargs[i] = last_minibuf_string; | |
730 | } | |
731 | break; | |
732 | ||
733 | case 'z': /* Coding-system symbol or nil */ | |
024d8713 | 734 | args[i] = Fread_coding_system (build_string (callint_message), Qnil); |
40b2421c KH |
735 | visargs[i] = last_minibuf_string; |
736 | break; | |
737 | ||
e92d107b RS |
738 | /* We have a case for `+' so we get an error |
739 | if anyone tries to define one here. */ | |
740 | case '+': | |
ec28a64d | 741 | default: |
e92d107b | 742 | error ("Invalid control letter `%c' (%03o) in interactive calling string", |
ec28a64d MB |
743 | *tem, *tem); |
744 | } | |
745 | ||
746 | if (varies[i] == 0) | |
747 | arg_from_tty = 1; | |
748 | ||
6e54b3de | 749 | if (NILP (visargs[i]) && STRINGP (args[i])) |
ec28a64d MB |
750 | visargs[i] = args[i]; |
751 | ||
752 | tem = (unsigned char *) index (tem, '\n'); | |
753 | if (tem) tem++; | |
754 | else tem = (unsigned char *) ""; | |
755 | } | |
52614803 | 756 | unbind_to (speccount, Qnil); |
ec28a64d MB |
757 | |
758 | QUIT; | |
759 | ||
760 | args[0] = function; | |
761 | ||
7868a977 | 762 | if (arg_from_tty || !NILP (record_flag)) |
ec28a64d MB |
763 | { |
764 | visargs[0] = function; | |
63007de2 | 765 | for (i = 1; i < count + 1; i++) |
824977b6 RS |
766 | { |
767 | if (varies[i] > 0) | |
768 | visargs[i] = Fcons (intern (callint_argfuns[varies[i]]), Qnil); | |
769 | else | |
770 | visargs[i] = quotify_arg (args[i]); | |
771 | } | |
ec28a64d MB |
772 | Vcommand_history = Fcons (Flist (count + 1, visargs), |
773 | Vcommand_history); | |
225c2157 RS |
774 | /* Don't keep command history around forever. */ |
775 | if (NUMBERP (Vhistory_length) && XINT (Vhistory_length) > 0) | |
776 | { | |
777 | teml = Fnthcdr (Vhistory_length, Vcommand_history); | |
778 | if (CONSP (teml)) | |
f3fbd155 | 779 | XSETCDR (teml, Qnil); |
225c2157 | 780 | } |
ec28a64d MB |
781 | } |
782 | ||
824977b6 RS |
783 | /* If we used a marker to hold point, mark, or an end of the region, |
784 | temporarily, convert it to an integer now. */ | |
f4c8ded2 | 785 | for (i = 1; i <= count; i++) |
824977b6 RS |
786 | if (varies[i] >= 1 && varies[i] <= 4) |
787 | XSETINT (args[i], marker_position (args[i])); | |
788 | ||
652e2240 | 789 | single_kboard_state (); |
ebfbe249 | 790 | |
ec28a64d MB |
791 | { |
792 | Lisp_Object val; | |
ec28a64d MB |
793 | specbind (Qcommand_debug_status, Qnil); |
794 | ||
795 | val = Ffuncall (count + 1, args); | |
796 | UNGCPRO; | |
797 | return unbind_to (speccount, val); | |
798 | } | |
799 | } | |
800 | ||
801 | DEFUN ("prefix-numeric-value", Fprefix_numeric_value, Sprefix_numeric_value, | |
802 | 1, 1, 0, | |
7868a977 | 803 | "Return numeric meaning of raw prefix argument RAW.\n\ |
ec28a64d MB |
804 | A raw prefix argument is what you get from `(interactive \"P\")'.\n\ |
805 | Its numeric meaning is what you would get from `(interactive \"p\")'.") | |
806 | (raw) | |
807 | Lisp_Object raw; | |
808 | { | |
809 | Lisp_Object val; | |
810 | ||
265a9e55 | 811 | if (NILP (raw)) |
acab6442 | 812 | XSETFASTINT (val, 1); |
fd5285f3 | 813 | else if (EQ (raw, Qminus)) |
ec28a64d | 814 | XSETINT (val, -1); |
70949dac KR |
815 | else if (CONSP (raw) && INTEGERP (XCAR (raw))) |
816 | XSETINT (val, XINT (XCAR (raw))); | |
6e54b3de | 817 | else if (INTEGERP (raw)) |
ec28a64d MB |
818 | val = raw; |
819 | else | |
acab6442 | 820 | XSETFASTINT (val, 1); |
ec28a64d MB |
821 | |
822 | return val; | |
823 | } | |
824 | ||
dfcf069d | 825 | void |
ec28a64d MB |
826 | syms_of_callint () |
827 | { | |
824977b6 RS |
828 | point_marker = Fmake_marker (); |
829 | staticpro (&point_marker); | |
830 | ||
03e130d5 RS |
831 | preserved_fns = Fcons (intern ("region-beginning"), |
832 | Fcons (intern ("region-end"), | |
833 | Fcons (intern ("point"), | |
834 | Fcons (intern ("mark"), Qnil)))); | |
835 | staticpro (&preserved_fns); | |
836 | ||
837 | Qlist = intern ("list"); | |
838 | staticpro (&Qlist); | |
8450690a RS |
839 | Qlet = intern ("let"); |
840 | staticpro (&Qlet); | |
841 | Qletx = intern ("let*"); | |
842 | staticpro (&Qletx); | |
843 | Qsave_excursion = intern ("save-excursion"); | |
844 | staticpro (&Qsave_excursion); | |
03e130d5 | 845 | |
ec28a64d MB |
846 | Qminus = intern ("-"); |
847 | staticpro (&Qminus); | |
848 | ||
fdb4a38c RS |
849 | Qplus = intern ("+"); |
850 | staticpro (&Qplus); | |
851 | ||
ec28a64d MB |
852 | Qcall_interactively = intern ("call-interactively"); |
853 | staticpro (&Qcall_interactively); | |
854 | ||
855 | Qcommand_debug_status = intern ("command-debug-status"); | |
856 | staticpro (&Qcommand_debug_status); | |
857 | ||
52614803 RS |
858 | Qenable_recursive_minibuffers = intern ("enable-recursive-minibuffers"); |
859 | staticpro (&Qenable_recursive_minibuffers); | |
860 | ||
ef2515c0 RS |
861 | Qmouse_leave_buffer_hook = intern ("mouse-leave-buffer-hook"); |
862 | staticpro (&Qmouse_leave_buffer_hook); | |
863 | ||
df31bc64 RS |
864 | callint_message_size = 100; |
865 | callint_message = (char *) xmalloc (callint_message_size); | |
866 | ||
867 | ||
1e0c5826 | 868 | DEFVAR_KBOARD ("prefix-arg", Vprefix_arg, |
8c917bf2 KH |
869 | "The value of the prefix argument for the next editing command.\n\ |
870 | It may be a number, or the symbol `-' for just a minus sign as arg,\n\ | |
dbae44c8 | 871 | or a list whose car is a number for just one or more C-u's\n\ |
8c917bf2 KH |
872 | or nil if no argument has been specified.\n\ |
873 | \n\ | |
874 | You cannot examine this variable to find the argument for this command\n\ | |
875 | since it has been set to nil by the time you can look.\n\ | |
876 | Instead, you should use the variable `current-prefix-arg', although\n\ | |
877 | normally commands can get this prefix argument with (interactive \"P\")."); | |
8c917bf2 | 878 | |
fe3fbdcc RS |
879 | DEFVAR_KBOARD ("last-prefix-arg", Vlast_prefix_arg, |
880 | "The value of the prefix argument for the previous editing command.\n\ | |
881 | See `prefix-arg' for the meaning of the value."); | |
882 | ||
8c917bf2 KH |
883 | DEFVAR_LISP ("current-prefix-arg", &Vcurrent_prefix_arg, |
884 | "The value of the prefix argument for this editing command.\n\ | |
885 | It may be a number, or the symbol `-' for just a minus sign as arg,\n\ | |
dbae44c8 | 886 | or a list whose car is a number for just one or more C-u's\n\ |
8c917bf2 KH |
887 | or nil if no argument has been specified.\n\ |
888 | This is what `(interactive \"P\")' returns."); | |
889 | Vcurrent_prefix_arg = Qnil; | |
890 | ||
ec28a64d MB |
891 | DEFVAR_LISP ("command-history", &Vcommand_history, |
892 | "List of recent commands that read arguments from terminal.\n\ | |
893 | Each command is represented as a form to evaluate."); | |
894 | Vcommand_history = Qnil; | |
895 | ||
896 | DEFVAR_LISP ("command-debug-status", &Vcommand_debug_status, | |
897 | "Debugging status of current interactive command.\n\ | |
898 | Bound each time `call-interactively' is called;\n\ | |
899 | may be set by the debugger as a reminder for itself."); | |
900 | Vcommand_debug_status = Qnil; | |
901 | ||
2ad6c959 | 902 | DEFVAR_LISP ("mark-even-if-inactive", &Vmark_even_if_inactive, |
9f315aeb RS |
903 | "*Non-nil means you can use the mark even when inactive.\n\ |
904 | This option makes a difference in Transient Mark mode.\n\ | |
905 | When the option is non-nil, deactivation of the mark\n\ | |
906 | turns off region highlighting, but commands that use the mark\n\ | |
907 | behave as if the mark were still active."); | |
908 | Vmark_even_if_inactive = Qnil; | |
909 | ||
ef2515c0 RS |
910 | DEFVAR_LISP ("mouse-leave-buffer-hook", &Vmouse_leave_buffer_hook, |
911 | "Hook to run when about to switch windows with a mouse command.\n\ | |
912 | Its purpose is to give temporary modes such as Isearch mode\n\ | |
913 | a way to turn themselves off when a mouse command switches windows."); | |
914 | Vmouse_leave_buffer_hook = Qnil; | |
915 | ||
ec28a64d MB |
916 | defsubr (&Sinteractive); |
917 | defsubr (&Scall_interactively); | |
918 | defsubr (&Sprefix_numeric_value); | |
919 | } |