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ec28a64d | 1 | /* Call a Lisp function interactively. |
73b0cd50 | 2 | Copyright (C) 1985-1986, 1993-1995, 1997, 2000-2011 |
8cabe764 | 3 | Free Software Foundation, Inc. |
ec28a64d MB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
9ec0b715 | 7 | GNU Emacs is free software: you can redistribute it and/or modify |
ec28a64d | 8 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
9 | the Free Software Foundation, either version 3 of the License, or |
10 | (at your option) any later version. | |
ec28a64d MB |
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 | |
9ec0b715 | 18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
ec28a64d MB |
19 | |
20 | ||
18160b98 | 21 | #include <config.h> |
d7306fe6 | 22 | #include <setjmp.h> |
fdb82f93 | 23 | |
ec28a64d MB |
24 | #include "lisp.h" |
25 | #include "buffer.h" | |
26 | #include "commands.h" | |
760cbdd3 | 27 | #include "keyboard.h" |
ec28a64d | 28 | #include "window.h" |
8feddab4 | 29 | #include "keymap.h" |
ec28a64d | 30 | |
29208e82 | 31 | Lisp_Object Qminus, Qplus; |
ec28a64d | 32 | Lisp_Object Qcall_interactively; |
955cbe7b PE |
33 | static Lisp_Object Qcommand_debug_status; |
34 | static Lisp_Object Qenable_recursive_minibuffers; | |
ec28a64d | 35 | |
955cbe7b | 36 | static Lisp_Object Qhandle_shift_selection; |
9bdb1538 | 37 | |
29208e82 | 38 | Lisp_Object Qmouse_leave_buffer_hook; |
ef2515c0 | 39 | |
955cbe7b PE |
40 | static Lisp_Object Qlist, Qlet, Qletx, Qsave_excursion, Qprogn, Qif; |
41 | Lisp_Object Qwhen; | |
824977b6 RS |
42 | static Lisp_Object preserved_fns; |
43 | ||
44 | /* Marker used within call-interactively to refer to point. */ | |
45 | static Lisp_Object point_marker; | |
03e130d5 | 46 | |
55b41ef5 CY |
47 | /* String for the prompt text used in Fcall_interactively. */ |
48 | static Lisp_Object callint_message; | |
425b457e | 49 | \f |
ec28a64d MB |
50 | /* ARGSUSED */ |
51 | DEFUN ("interactive", Finteractive, Sinteractive, 0, UNEVALLED, 0, | |
fdb82f93 PJ |
52 | doc: /* Specify a way of parsing arguments for interactive use of a function. |
53 | For example, write | |
f9257eed AM |
54 | (defun foo (arg buf) "Doc string" (interactive "P\\nbbuffer: ") .... ) |
55 | to make ARG be the raw prefix argument, and set BUF to an existing buffer, | |
56 | when `foo' is called as a command. | |
fdb82f93 PJ |
57 | The "call" to `interactive' is actually a declaration rather than a function; |
58 | it tells `call-interactively' how to read arguments | |
59 | to pass to the function. | |
60 | When actually called, `interactive' just returns nil. | |
61 | ||
f9257eed AM |
62 | Usually the argument of `interactive' is a string containing a code letter |
63 | followed optionally by a prompt. (Some code letters do not use I/O to get | |
64 | the argument and do not use prompts.) To get several arguments, concatenate | |
65 | the individual strings, separating them by newline characters. | |
66 | Prompts are passed to format, and may use % escapes to print the | |
fdb82f93 PJ |
67 | arguments that have already been read. |
68 | If the argument is not a string, it is evaluated to get a list of | |
69 | arguments to pass to the function. | |
70 | Just `(interactive)' means pass no args when calling interactively. | |
71 | ||
72 | Code letters available are: | |
73 | a -- Function name: symbol with a function definition. | |
74 | b -- Name of existing buffer. | |
75 | B -- Name of buffer, possibly nonexistent. | |
76 | c -- Character (no input method is used). | |
77 | C -- Command name: symbol with interactive function definition. | |
78 | d -- Value of point as number. Does not do I/O. | |
79 | D -- Directory name. | |
80 | e -- Parametrized event (i.e., one that's a list) that invoked this command. | |
81 | If used more than once, the Nth `e' returns the Nth parameterized event. | |
82 | This skips events that are integers or symbols. | |
83 | f -- Existing file name. | |
84 | F -- Possibly nonexistent file name. | |
75f9fbe8 | 85 | G -- Possibly nonexistent file name, defaulting to just directory name. |
fdb82f93 PJ |
86 | i -- Ignored, i.e. always nil. Does not do I/O. |
87 | k -- Key sequence (downcase the last event if needed to get a definition). | |
88 | K -- Key sequence to be redefined (do not downcase the last event). | |
89 | m -- Value of mark as number. Does not do I/O. | |
90 | M -- Any string. Inherits the current input method. | |
91 | n -- Number read using minibuffer. | |
425b457e | 92 | N -- Numeric prefix arg, or if none, do like code `n'. |
fdb82f93 PJ |
93 | p -- Prefix arg converted to number. Does not do I/O. |
94 | P -- Prefix arg in raw form. Does not do I/O. | |
95 | r -- Region: point and mark as 2 numeric args, smallest first. Does no I/O. | |
96 | s -- Any string. Does not inherit the current input method. | |
97 | S -- Any symbol. | |
39900c4e | 98 | U -- Mouse up event discarded by a previous k or K argument. |
fdb82f93 PJ |
99 | v -- Variable name: symbol that is user-variable-p. |
100 | x -- Lisp expression read but not evaluated. | |
101 | X -- Lisp expression read and evaluated. | |
102 | z -- Coding system. | |
103 | Z -- Coding system, nil if no prefix arg. | |
9bdb1538 CY |
104 | |
105 | In addition, if the string begins with `*', an error is signaled if | |
106 | the buffer is read-only. | |
107 | If the string begins with `@', Emacs searches the key sequence which | |
108 | invoked the command for its first mouse click (or any other event | |
109 | which specifies a window). | |
110 | If the string begins with `^' and `shift-select-mode' is non-nil, | |
2a4f8d3d | 111 | Emacs first calls the function `handle-shift-selection'. |
9bdb1538 CY |
112 | You may use `@', `*', and `^' together. They are processed in the |
113 | order that they appear, before reading any arguments. | |
d88bee5a | 114 | usage: (interactive &optional ARGS) */) |
5842a27b | 115 | (Lisp_Object args) |
ec28a64d MB |
116 | { |
117 | return Qnil; | |
118 | } | |
119 | ||
120 | /* Quotify EXP: if EXP is constant, return it. | |
121 | If EXP is not constant, return (quote EXP). */ | |
b1349114 | 122 | static Lisp_Object |
971de7fb | 123 | quotify_arg (register Lisp_Object exp) |
ec28a64d | 124 | { |
d032d5e7 SM |
125 | if (CONSP (exp) |
126 | || (SYMBOLP (exp) | |
127 | && !NILP (exp) && !EQ (exp, Qt))) | |
ec28a64d MB |
128 | return Fcons (Qquote, Fcons (exp, Qnil)); |
129 | ||
130 | return exp; | |
131 | } | |
132 | ||
133 | /* Modify EXP by quotifying each element (except the first). */ | |
b1349114 | 134 | static Lisp_Object |
971de7fb | 135 | quotify_args (Lisp_Object exp) |
ec28a64d MB |
136 | { |
137 | register Lisp_Object tail; | |
7539e11f KR |
138 | Lisp_Object next; |
139 | for (tail = exp; CONSP (tail); tail = next) | |
ec28a64d | 140 | { |
7539e11f | 141 | next = XCDR (tail); |
f3fbd155 | 142 | XSETCAR (tail, quotify_arg (XCAR (tail))); |
ec28a64d MB |
143 | } |
144 | return exp; | |
145 | } | |
146 | ||
648801d1 | 147 | static const char *callint_argfuns[] |
ec28a64d MB |
148 | = {"", "point", "mark", "region-beginning", "region-end"}; |
149 | ||
150 | static void | |
971de7fb | 151 | check_mark (int for_region) |
ec28a64d | 152 | { |
86c1cf23 | 153 | Lisp_Object tem; |
4b4deea2 | 154 | tem = Fmarker_buffer (BVAR (current_buffer, mark)); |
265a9e55 | 155 | if (NILP (tem) || (XBUFFER (tem) != current_buffer)) |
f203cf07 RS |
156 | error (for_region ? "The mark is not set now, so there is no region" |
157 | : "The mark is not set now"); | |
6497d2d8 | 158 | if (!NILP (Vtransient_mark_mode) && NILP (Vmark_even_if_inactive) |
4b4deea2 | 159 | && NILP (BVAR (current_buffer, mark_active))) |
f439241f | 160 | xsignal0 (Qmark_inactive); |
ec28a64d MB |
161 | } |
162 | ||
64ea14d3 RS |
163 | /* If the list of args INPUT was produced with an explicit call to |
164 | `list', look for elements that were computed with | |
165 | (region-beginning) or (region-end), and put those expressions into | |
166 | VALUES instead of the present values. | |
167 | ||
168 | This function doesn't return a value because it modifies elements | |
169 | of VALUES to do its job. */ | |
170 | ||
d1135afc | 171 | static void |
971de7fb | 172 | fix_command (Lisp_Object input, Lisp_Object values) |
d1135afc | 173 | { |
d032d5e7 | 174 | /* FIXME: Instead of this ugly hack, we should provide a way for an |
7200d79c SM |
175 | interactive spec to return an expression/function that will re-build the |
176 | args without user intervention. */ | |
d1135afc JB |
177 | if (CONSP (input)) |
178 | { | |
179 | Lisp_Object car; | |
180 | ||
181 | car = XCAR (input); | |
182 | /* Skip through certain special forms. */ | |
183 | while (EQ (car, Qlet) || EQ (car, Qletx) | |
184 | || EQ (car, Qsave_excursion) | |
185 | || EQ (car, Qprogn)) | |
186 | { | |
187 | while (CONSP (XCDR (input))) | |
188 | input = XCDR (input); | |
189 | input = XCAR (input); | |
190 | if (!CONSP (input)) | |
191 | break; | |
192 | car = XCAR (input); | |
193 | } | |
194 | if (EQ (car, Qlist)) | |
195 | { | |
196 | Lisp_Object intail, valtail; | |
197 | for (intail = Fcdr (input), valtail = values; | |
198 | CONSP (valtail); | |
5dc05618 | 199 | intail = Fcdr (intail), valtail = XCDR (valtail)) |
d1135afc JB |
200 | { |
201 | Lisp_Object elt; | |
202 | elt = Fcar (intail); | |
203 | if (CONSP (elt)) | |
204 | { | |
205 | Lisp_Object presflag, carelt; | |
206 | carelt = Fcar (elt); | |
207 | /* If it is (if X Y), look at Y. */ | |
208 | if (EQ (carelt, Qif) | |
209 | && EQ (Fnthcdr (make_number (3), elt), Qnil)) | |
210 | elt = Fnth (make_number (2), elt); | |
211 | /* If it is (when ... Y), look at Y. */ | |
212 | else if (EQ (carelt, Qwhen)) | |
213 | { | |
214 | while (CONSP (XCDR (elt))) | |
215 | elt = XCDR (elt); | |
216 | elt = Fcar (elt); | |
217 | } | |
218 | ||
219 | /* If the function call we're looking at | |
220 | is a special preserved one, copy the | |
221 | whole expression for this argument. */ | |
222 | if (CONSP (elt)) | |
223 | { | |
224 | presflag = Fmemq (Fcar (elt), preserved_fns); | |
225 | if (!NILP (presflag)) | |
226 | Fsetcar (valtail, Fcar (intail)); | |
227 | } | |
228 | } | |
229 | } | |
230 | } | |
231 | } | |
232 | } | |
ec28a64d | 233 | |
d455db8e | 234 | DEFUN ("call-interactively", Fcall_interactively, Scall_interactively, 1, 3, 0, |
fdb82f93 PJ |
235 | doc: /* Call FUNCTION, reading args according to its interactive calling specs. |
236 | Return the value FUNCTION returns. | |
237 | The function contains a specification of how to do the argument reading. | |
238 | In the case of user-defined functions, this is specified by placing a call | |
239 | to the function `interactive' at the top level of the function body. | |
240 | See `interactive'. | |
241 | ||
242 | Optional second arg RECORD-FLAG non-nil | |
243 | means unconditionally put this command in the command-history. | |
244 | Otherwise, this is done only if an arg is read using the minibuffer. | |
2a95a27c | 245 | |
fdb82f93 | 246 | Optional third arg KEYS, if given, specifies the sequence of events to |
2a95a27c CY |
247 | supply, as a vector, if the command inquires which events were used to |
248 | invoke it. If KEYS is omitted or nil, the return value of | |
249 | `this-command-keys-vector' is used. */) | |
5842a27b | 250 | (Lisp_Object function, Lisp_Object record_flag, Lisp_Object keys) |
ec28a64d MB |
251 | { |
252 | Lisp_Object *args, *visargs; | |
ec28a64d | 253 | Lisp_Object specs; |
079e479f | 254 | Lisp_Object filter_specs; |
ec28a64d | 255 | Lisp_Object teml; |
39900c4e | 256 | Lisp_Object up_event; |
52614803 | 257 | Lisp_Object enable; |
aed13378 | 258 | int speccount = SPECPDL_INDEX (); |
ec28a64d | 259 | |
bc78232c JB |
260 | /* The index of the next element of this_command_keys to examine for |
261 | the 'e' interactive code. */ | |
dbc4e1c1 | 262 | int next_event; |
bc78232c | 263 | |
ec28a64d | 264 | Lisp_Object prefix_arg; |
a2db9982 | 265 | char *string; |
b0e80955 | 266 | const char *tem; |
63007de2 JB |
267 | |
268 | /* If varies[i] > 0, the i'th argument shouldn't just have its value | |
269 | in this call quoted in the command history. It should be | |
270 | recorded as a call to the function named callint_argfuns[varies[i]]. */ | |
ec28a64d | 271 | int *varies; |
63007de2 | 272 | |
becfa255 PE |
273 | register size_t i; |
274 | size_t nargs; | |
c5101a77 | 275 | int foo; |
ec28a64d MB |
276 | char prompt1[100]; |
277 | char *tem1; | |
278 | int arg_from_tty = 0; | |
39900c4e | 279 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; |
d455db8e | 280 | int key_count; |
09c886dc | 281 | int record_then_fail = 0; |
d455db8e | 282 | |
0605dd79 RS |
283 | Lisp_Object save_this_command, save_last_command; |
284 | Lisp_Object save_this_original_command, save_real_this_command; | |
285 | ||
286 | save_this_command = Vthis_command; | |
287 | save_this_original_command = Vthis_original_command; | |
288 | save_real_this_command = real_this_command; | |
1344aad4 | 289 | save_last_command = KVAR (current_kboard, Vlast_command); |
0605dd79 | 290 | |
d455db8e RS |
291 | if (NILP (keys)) |
292 | keys = this_command_keys, key_count = this_command_key_count; | |
293 | else | |
294 | { | |
b7826503 | 295 | CHECK_VECTOR (keys); |
d455db8e RS |
296 | key_count = XVECTOR (keys)->size; |
297 | } | |
ec28a64d | 298 | |
e5d77022 | 299 | /* Save this now, since use of minibuffer will clobber it. */ |
8c917bf2 | 300 | prefix_arg = Vcurrent_prefix_arg; |
ec28a64d | 301 | |
6e54b3de | 302 | if (SYMBOLP (function)) |
afa4c0f3 | 303 | enable = Fget (function, Qenable_recursive_minibuffers); |
4f895918 GM |
304 | else |
305 | enable = Qnil; | |
52614803 | 306 | |
ec28a64d MB |
307 | specs = Qnil; |
308 | string = 0; | |
079e479f RS |
309 | /* The idea of FILTER_SPECS is to provide away to |
310 | specify how to represent the arguments in command history. | |
311 | The feature is not fully implemented. */ | |
312 | filter_specs = Qnil; | |
ec28a64d | 313 | |
39900c4e KS |
314 | /* If k or K discard an up-event, save it here so it can be retrieved with U */ |
315 | up_event = Qnil; | |
316 | ||
ccb5c14f | 317 | /* Set SPECS to the interactive form, or barf if not interactive. */ |
023accd6 SM |
318 | { |
319 | Lisp_Object form; | |
320 | GCPRO2 (function, prefix_arg); | |
321 | form = Finteractive_form (function); | |
322 | UNGCPRO; | |
323 | if (CONSP (form)) | |
324 | specs = filter_specs = Fcar (XCDR (form)); | |
325 | else | |
326 | wrong_type_argument (Qcommandp, function); | |
327 | } | |
ec28a64d | 328 | |
ccb5c14f | 329 | /* If SPECS is set to a string, use it as an interactive prompt. */ |
6e54b3de | 330 | if (STRINGP (specs)) |
46947372 JB |
331 | { |
332 | /* Make a copy of string so that if a GC relocates specs, | |
333 | `string' will still be valid. */ | |
a2db9982 PE |
334 | string = (char *) alloca (SBYTES (specs) + 1); |
335 | memcpy (string, SSDATA (specs), SBYTES (specs) + 1); | |
46947372 | 336 | } |
023accd6 | 337 | else |
ec28a64d | 338 | { |
03e130d5 | 339 | Lisp_Object input; |
d032d5e7 | 340 | Lisp_Object funval = Findirect_function (function, Qt); |
91a6ba78 | 341 | i = num_input_events; |
03e130d5 RS |
342 | input = specs; |
343 | /* Compute the arg values using the user's expression. */ | |
079e479f | 344 | GCPRO2 (input, filter_specs); |
d032d5e7 SM |
345 | specs = Feval (specs, |
346 | CONSP (funval) && EQ (Qclosure, XCAR (funval)) | |
347 | ? Qt : Qnil); | |
079e479f | 348 | UNGCPRO; |
91a6ba78 | 349 | if (i != num_input_events || !NILP (record_flag)) |
03e130d5 RS |
350 | { |
351 | /* We should record this command on the command history. */ | |
f1321dc3 | 352 | Lisp_Object values; |
d65859c3 | 353 | Lisp_Object this_cmd; |
03e130d5 RS |
354 | /* Make a copy of the list of values, for the command history, |
355 | and turn them into things we can eval. */ | |
356 | values = quotify_args (Fcopy_sequence (specs)); | |
120d0a23 | 357 | fix_command (input, values); |
d65859c3 DN |
358 | this_cmd = Fcons (function, values); |
359 | if (history_delete_duplicates) | |
360 | Vcommand_history = Fdelete (this_cmd, Vcommand_history); | |
361 | Vcommand_history = Fcons (this_cmd, Vcommand_history); | |
225c2157 RS |
362 | |
363 | /* Don't keep command history around forever. */ | |
b9f0b172 | 364 | if (INTEGERP (Vhistory_length) && XINT (Vhistory_length) > 0) |
225c2157 RS |
365 | { |
366 | teml = Fnthcdr (Vhistory_length, Vcommand_history); | |
367 | if (CONSP (teml)) | |
f3fbd155 | 368 | XSETCDR (teml, Qnil); |
225c2157 | 369 | } |
03e130d5 | 370 | } |
0605dd79 RS |
371 | |
372 | Vthis_command = save_this_command; | |
373 | Vthis_original_command = save_this_original_command; | |
374 | real_this_command= save_real_this_command; | |
1344aad4 | 375 | KVAR (current_kboard, Vlast_command) = save_last_command; |
0605dd79 | 376 | |
256c9c3a KL |
377 | temporarily_switch_to_single_kboard (NULL); |
378 | return unbind_to (speccount, apply1 (function, specs)); | |
ec28a64d MB |
379 | } |
380 | ||
381 | /* Here if function specifies a string to control parsing the defaults */ | |
382 | ||
dbc4e1c1 | 383 | /* Set next_event to point to the first event with parameters. */ |
d455db8e | 384 | for (next_event = 0; next_event < key_count; next_event++) |
1b511542 | 385 | if (EVENT_HAS_PARAMETERS (AREF (keys, next_event))) |
dbc4e1c1 | 386 | break; |
09c886dc | 387 | |
42bb2790 | 388 | /* Handle special starting chars `*' and `@'. Also `-'. */ |
e92d107b | 389 | /* Note that `+' is reserved for user extensions. */ |
ec28a64d MB |
390 | while (1) |
391 | { | |
fb775602 | 392 | if (*string == '+') |
e92d107b RS |
393 | error ("`+' is not used in `interactive' for ordinary commands"); |
394 | else if (*string == '*') | |
ec28a64d MB |
395 | { |
396 | string++; | |
4b4deea2 | 397 | if (!NILP (BVAR (current_buffer, read_only))) |
09c886dc RS |
398 | { |
399 | if (!NILP (record_flag)) | |
400 | { | |
a2db9982 | 401 | char *p = string; |
09c886dc RS |
402 | while (*p) |
403 | { | |
404 | if (! (*p == 'r' || *p == 'p' || *p == 'P' | |
405 | || *p == '\n')) | |
406 | Fbarf_if_buffer_read_only (); | |
407 | p++; | |
408 | } | |
409 | record_then_fail = 1; | |
410 | } | |
411 | else | |
412 | Fbarf_if_buffer_read_only (); | |
413 | } | |
ec28a64d | 414 | } |
42bb2790 RS |
415 | /* Ignore this for semi-compatibility with Lucid. */ |
416 | else if (*string == '-') | |
417 | string++; | |
ec28a64d MB |
418 | else if (*string == '@') |
419 | { | |
a3e8cbda | 420 | Lisp_Object event, w; |
dbc4e1c1 | 421 | |
170d3006 | 422 | event = (next_event < key_count |
1b511542 | 423 | ? AREF (keys, next_event) |
170d3006 | 424 | : Qnil); |
dbc4e1c1 | 425 | if (EVENT_HAS_PARAMETERS (event) |
a3e8cbda PE |
426 | && (w = XCDR (event), CONSP (w)) |
427 | && (w = XCAR (w), CONSP (w)) | |
428 | && (w = XCAR (w), WINDOWP (w))) | |
d1fa2e8a | 429 | { |
a3e8cbda PE |
430 | if (MINI_WINDOW_P (XWINDOW (w)) |
431 | && ! (minibuf_level > 0 && EQ (w, minibuf_window))) | |
d1fa2e8a | 432 | error ("Attempt to select inactive minibuffer window"); |
ef2515c0 RS |
433 | |
434 | /* If the current buffer wants to clean up, let it. */ | |
dee091a3 | 435 | Frun_hooks (1, &Qmouse_leave_buffer_hook); |
ef2515c0 | 436 | |
a3e8cbda | 437 | Fselect_window (w, Qnil); |
d1fa2e8a | 438 | } |
ec28a64d | 439 | string++; |
ec28a64d | 440 | } |
9bdb1538 CY |
441 | else if (*string == '^') |
442 | { | |
84db11d6 | 443 | call0 (Qhandle_shift_selection); |
9bdb1538 CY |
444 | string++; |
445 | } | |
ec28a64d MB |
446 | else break; |
447 | } | |
448 | ||
becfa255 PE |
449 | /* Count the number of arguments, which is one plus the number of arguments |
450 | the interactive spec would have us give to the function. */ | |
ec28a64d | 451 | tem = string; |
becfa255 | 452 | for (nargs = 1; *tem; ) |
ec28a64d MB |
453 | { |
454 | /* 'r' specifications ("point and mark as 2 numeric args") | |
455 | produce *two* arguments. */ | |
e4305426 | 456 | if (*tem == 'r') |
becfa255 | 457 | nargs += 2; |
e4305426 | 458 | else |
becfa255 | 459 | nargs++; |
a2db9982 | 460 | tem = strchr (tem, '\n'); |
ec28a64d | 461 | if (tem) |
e4305426 | 462 | ++tem; |
ec28a64d | 463 | else |
e4305426 | 464 | break; |
ec28a64d | 465 | } |
ec28a64d | 466 | |
becfa255 PE |
467 | args = (Lisp_Object *) alloca (nargs * sizeof (Lisp_Object)); |
468 | visargs = (Lisp_Object *) alloca (nargs * sizeof (Lisp_Object)); | |
469 | varies = (int *) alloca (nargs * sizeof (int)); | |
ec28a64d | 470 | |
becfa255 | 471 | for (i = 0; i < nargs; i++) |
ec28a64d MB |
472 | { |
473 | args[i] = Qnil; | |
474 | visargs[i] = Qnil; | |
475 | varies[i] = 0; | |
476 | } | |
477 | ||
39900c4e | 478 | GCPRO5 (prefix_arg, function, *args, *visargs, up_event); |
becfa255 PE |
479 | gcpro3.nvars = nargs; |
480 | gcpro4.nvars = nargs; | |
ec28a64d | 481 | |
52614803 RS |
482 | if (!NILP (enable)) |
483 | specbind (Qenable_recursive_minibuffers, Qt); | |
484 | ||
ec28a64d | 485 | tem = string; |
6bc1abf2 | 486 | for (i = 1; *tem; i++) |
ec28a64d MB |
487 | { |
488 | strncpy (prompt1, tem + 1, sizeof prompt1 - 1); | |
489 | prompt1[sizeof prompt1 - 1] = 0; | |
8966b757 | 490 | tem1 = strchr (prompt1, '\n'); |
ec28a64d | 491 | if (tem1) *tem1 = 0; |
55b41ef5 CY |
492 | |
493 | visargs[0] = build_string (prompt1); | |
8966b757 | 494 | if (strchr (prompt1, '%')) |
55b41ef5 CY |
495 | callint_message = Fformat (i, visargs); |
496 | else | |
497 | callint_message = visargs[0]; | |
ec28a64d MB |
498 | |
499 | switch (*tem) | |
500 | { | |
501 | case 'a': /* Symbol defined as a function */ | |
55b41ef5 | 502 | visargs[i] = Fcompleting_read (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 */ | |
f03f8f2c JL |
511 | args[i] = Fcurrent_buffer (); |
512 | if (EQ (selected_window, minibuf_window)) | |
513 | args[i] = Fother_buffer (args[i], Qnil, Qnil); | |
514 | args[i] = Fread_buffer (callint_message, args[i], Qt); | |
515 | break; | |
516 | ||
ec28a64d | 517 | case 'B': /* Name of buffer, possibly nonexistent */ |
f03f8f2c JL |
518 | args[i] = Fread_buffer (callint_message, |
519 | Fother_buffer (Fcurrent_buffer (), Qnil, Qnil), | |
520 | Qnil); | |
ec28a64d MB |
521 | break; |
522 | ||
523 | case 'c': /* Character */ | |
54b33868 MR |
524 | /* Prompt in `minibuffer-prompt' face. */ |
525 | Fput_text_property (make_number (0), | |
526 | make_number (SCHARS (callint_message)), | |
527 | Qface, Qminibuffer_prompt, callint_message); | |
55b41ef5 | 528 | args[i] = Fread_char (callint_message, Qnil, Qnil); |
453ed650 | 529 | message1_nolog ((char *) 0); |
ec28a64d MB |
530 | /* Passing args[i] directly stimulates compiler bug */ |
531 | teml = args[i]; | |
532 | visargs[i] = Fchar_to_string (teml); | |
533 | break; | |
534 | ||
535 | case 'C': /* Command: symbol with interactive function */ | |
55b41ef5 | 536 | visargs[i] = Fcompleting_read (callint_message, |
ff9cd111 | 537 | Vobarray, Qcommandp, |
93fb51ae | 538 | Qt, Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
539 | /* Passing args[i] directly stimulates compiler bug */ |
540 | teml = visargs[i]; | |
541 | args[i] = Fintern (teml, Qnil); | |
542 | break; | |
543 | ||
544 | case 'd': /* Value of point. Does not do I/O. */ | |
dc330139 | 545 | set_marker_both (point_marker, Qnil, PT, PT_BYTE); |
824977b6 | 546 | args[i] = point_marker; |
ec28a64d MB |
547 | /* visargs[i] = Qnil; */ |
548 | varies[i] = 1; | |
549 | break; | |
550 | ||
ec28a64d | 551 | case 'D': /* Directory name. */ |
55b41ef5 | 552 | args[i] = Fread_file_name (callint_message, Qnil, |
4b4deea2 | 553 | BVAR (current_buffer, directory), Qlambda, Qnil, |
93ed5f9d | 554 | Qfile_directory_p); |
ec28a64d MB |
555 | break; |
556 | ||
557 | case 'f': /* Existing file name. */ | |
55b41ef5 | 558 | args[i] = Fread_file_name (callint_message, |
93ed5f9d | 559 | Qnil, Qnil, Qlambda, Qnil, Qnil); |
ec28a64d MB |
560 | break; |
561 | ||
562 | case 'F': /* Possibly nonexistent file name. */ | |
55b41ef5 | 563 | args[i] = Fread_file_name (callint_message, |
93ed5f9d | 564 | Qnil, Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
565 | break; |
566 | ||
75f9fbe8 RS |
567 | case 'G': /* Possibly nonexistent file name, |
568 | default to directory alone. */ | |
55b41ef5 | 569 | args[i] = Fread_file_name (callint_message, |
977f6cfb | 570 | Qnil, Qnil, Qnil, empty_unibyte_string, Qnil); |
75f9fbe8 RS |
571 | break; |
572 | ||
40b2421c KH |
573 | case 'i': /* Ignore an argument -- Does not do I/O */ |
574 | varies[i] = -1; | |
575 | break; | |
576 | ||
1989e7bc | 577 | case 'k': /* Key sequence. */ |
c631c234 | 578 | { |
aed13378 | 579 | int speccount1 = SPECPDL_INDEX (); |
c631c234 | 580 | specbind (Qcursor_in_echo_area, Qt); |
54b33868 MR |
581 | /* Prompt in `minibuffer-prompt' face. */ |
582 | Fput_text_property (make_number (0), | |
583 | make_number (SCHARS (callint_message)), | |
584 | Qface, Qminibuffer_prompt, callint_message); | |
55b41ef5 | 585 | args[i] = Fread_key_sequence (callint_message, |
ad4ac475 | 586 | Qnil, Qnil, Qnil, Qnil); |
c631c234 RS |
587 | unbind_to (speccount1, Qnil); |
588 | teml = args[i]; | |
a1bfe073 | 589 | visargs[i] = Fkey_description (teml, Qnil); |
cdfac812 RS |
590 | |
591 | /* If the key sequence ends with a down-event, | |
592 | discard the following up-event. */ | |
593 | teml = Faref (args[i], make_number (XINT (Flength (args[i])) - 1)); | |
594 | if (CONSP (teml)) | |
70949dac | 595 | teml = XCAR (teml); |
cdfac812 RS |
596 | if (SYMBOLP (teml)) |
597 | { | |
598 | Lisp_Object tem2; | |
599 | ||
600 | teml = Fget (teml, intern ("event-symbol-elements")); | |
4b27f17c AS |
601 | /* Ignore first element, which is the base key. */ |
602 | tem2 = Fmemq (intern ("down"), Fcdr (teml)); | |
cdfac812 | 603 | if (! NILP (tem2)) |
43811b4e | 604 | up_event = Fread_event (Qnil, Qnil, Qnil); |
cdfac812 | 605 | } |
c631c234 | 606 | } |
1989e7bc RS |
607 | break; |
608 | ||
609 | case 'K': /* Key sequence to be defined. */ | |
c631c234 | 610 | { |
aed13378 | 611 | int speccount1 = SPECPDL_INDEX (); |
c631c234 | 612 | specbind (Qcursor_in_echo_area, Qt); |
54b33868 MR |
613 | /* Prompt in `minibuffer-prompt' face. */ |
614 | Fput_text_property (make_number (0), | |
615 | make_number (SCHARS (callint_message)), | |
616 | Qface, Qminibuffer_prompt, callint_message); | |
55b41ef5 | 617 | args[i] = Fread_key_sequence (callint_message, |
ad4ac475 | 618 | Qnil, Qt, Qnil, Qnil); |
c631c234 | 619 | teml = args[i]; |
a1bfe073 | 620 | visargs[i] = Fkey_description (teml, Qnil); |
c631c234 | 621 | unbind_to (speccount1, Qnil); |
cdfac812 RS |
622 | |
623 | /* If the key sequence ends with a down-event, | |
624 | discard the following up-event. */ | |
625 | teml = Faref (args[i], make_number (XINT (Flength (args[i])) - 1)); | |
626 | if (CONSP (teml)) | |
70949dac | 627 | teml = XCAR (teml); |
cdfac812 RS |
628 | if (SYMBOLP (teml)) |
629 | { | |
630 | Lisp_Object tem2; | |
631 | ||
632 | teml = Fget (teml, intern ("event-symbol-elements")); | |
4b27f17c AS |
633 | /* Ignore first element, which is the base key. */ |
634 | tem2 = Fmemq (intern ("down"), Fcdr (teml)); | |
cdfac812 | 635 | if (! NILP (tem2)) |
43811b4e | 636 | up_event = Fread_event (Qnil, Qnil, Qnil); |
cdfac812 | 637 | } |
c631c234 | 638 | } |
ec28a64d MB |
639 | break; |
640 | ||
39900c4e KS |
641 | case 'U': /* Up event from last k or K */ |
642 | if (!NILP (up_event)) | |
643 | { | |
644 | args[i] = Fmake_vector (make_number (1), up_event); | |
645 | up_event = Qnil; | |
646 | teml = args[i]; | |
647 | visargs[i] = Fkey_description (teml, Qnil); | |
648 | } | |
649 | break; | |
650 | ||
bc78232c | 651 | case 'e': /* The invoking event. */ |
d455db8e | 652 | if (next_event >= key_count) |
bc78232c | 653 | error ("%s must be bound to an event with parameters", |
6e54b3de | 654 | (SYMBOLP (function) |
51b59d79 | 655 | ? SSDATA (SYMBOL_NAME (function)) |
bc78232c | 656 | : "command")); |
1b511542 SM |
657 | args[i] = AREF (keys, next_event); |
658 | next_event++; | |
e5d77022 | 659 | varies[i] = -1; |
dbc4e1c1 JB |
660 | |
661 | /* Find the next parameterized event. */ | |
d455db8e | 662 | while (next_event < key_count |
1b511542 | 663 | && !(EVENT_HAS_PARAMETERS (AREF (keys, next_event)))) |
dbc4e1c1 JB |
664 | next_event++; |
665 | ||
63007de2 JB |
666 | break; |
667 | ||
ec28a64d | 668 | case 'm': /* Value of mark. Does not do I/O. */ |
f203cf07 | 669 | check_mark (0); |
ec28a64d | 670 | /* visargs[i] = Qnil; */ |
4b4deea2 | 671 | args[i] = BVAR (current_buffer, mark); |
ec28a64d MB |
672 | varies[i] = 2; |
673 | break; | |
674 | ||
93fb51ae KH |
675 | case 'M': /* String read via minibuffer with |
676 | inheriting the current input method. */ | |
55b41ef5 | 677 | args[i] = Fread_string (callint_message, |
93fb51ae KH |
678 | Qnil, Qnil, Qnil, Qt); |
679 | break; | |
680 | ||
425b457e | 681 | case 'N': /* Prefix arg as number, else number from minibuffer */ |
265a9e55 | 682 | if (!NILP (prefix_arg)) |
ec28a64d MB |
683 | goto have_prefix_arg; |
684 | case 'n': /* Read number from minibuffer. */ | |
f0490a0b RS |
685 | { |
686 | int first = 1; | |
687 | do | |
688 | { | |
a3e8cbda | 689 | Lisp_Object str; |
e7c4e229 | 690 | if (! first) |
f0490a0b RS |
691 | { |
692 | message ("Please enter a number."); | |
e7c4e229 | 693 | sit_for (make_number (1), 0, 0); |
f0490a0b RS |
694 | } |
695 | first = 0; | |
696 | ||
a3e8cbda | 697 | str = Fread_from_minibuffer (callint_message, |
93fb51ae | 698 | Qnil, Qnil, Qnil, Qnil, Qnil, |
ae4c2a3b | 699 | Qnil); |
a3e8cbda | 700 | if (! STRINGP (str) || SCHARS (str) == 0) |
f0490a0b RS |
701 | args[i] = Qnil; |
702 | else | |
a3e8cbda | 703 | args[i] = Fread (str); |
f0490a0b RS |
704 | } |
705 | while (! NUMBERP (args[i])); | |
706 | } | |
55b41ef5 | 707 | visargs[i] = args[i]; |
ec28a64d MB |
708 | break; |
709 | ||
710 | case 'P': /* Prefix arg in raw form. Does no I/O. */ | |
ec28a64d MB |
711 | args[i] = prefix_arg; |
712 | /* visargs[i] = Qnil; */ | |
713 | varies[i] = -1; | |
714 | break; | |
715 | ||
716 | case 'p': /* Prefix arg converted to number. No I/O. */ | |
71eda2d5 | 717 | have_prefix_arg: |
ec28a64d MB |
718 | args[i] = Fprefix_numeric_value (prefix_arg); |
719 | /* visargs[i] = Qnil; */ | |
720 | varies[i] = -1; | |
721 | break; | |
722 | ||
723 | case 'r': /* Region, point and mark as 2 args. */ | |
f203cf07 | 724 | check_mark (1); |
dc330139 | 725 | set_marker_both (point_marker, Qnil, PT, PT_BYTE); |
ec28a64d | 726 | /* visargs[i+1] = Qnil; */ |
4b4deea2 | 727 | foo = marker_position (BVAR (current_buffer, mark)); |
ec28a64d | 728 | /* visargs[i] = Qnil; */ |
4b4deea2 | 729 | args[i] = PT < foo ? point_marker : BVAR (current_buffer, mark); |
ec28a64d | 730 | varies[i] = 3; |
4b4deea2 | 731 | args[++i] = PT > foo ? point_marker : BVAR (current_buffer, mark); |
ec28a64d MB |
732 | varies[i] = 4; |
733 | break; | |
734 | ||
93fb51ae KH |
735 | case 's': /* String read via minibuffer without |
736 | inheriting the current input method. */ | |
55b41ef5 | 737 | args[i] = Fread_string (callint_message, |
93fb51ae | 738 | Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
739 | break; |
740 | ||
741 | case 'S': /* Any symbol. */ | |
55b41ef5 | 742 | visargs[i] = Fread_string (callint_message, |
93fb51ae | 743 | Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
744 | /* Passing args[i] directly stimulates compiler bug */ |
745 | teml = visargs[i]; | |
746 | args[i] = Fintern (teml, Qnil); | |
747 | break; | |
748 | ||
749 | case 'v': /* Variable name: symbol that is | |
750 | user-variable-p. */ | |
55b41ef5 | 751 | args[i] = Fread_variable (callint_message, Qnil); |
ec28a64d MB |
752 | visargs[i] = last_minibuf_string; |
753 | break; | |
754 | ||
755 | case 'x': /* Lisp expression read but not evaluated */ | |
55b41ef5 | 756 | args[i] = Fread_minibuffer (callint_message, Qnil); |
ec28a64d MB |
757 | visargs[i] = last_minibuf_string; |
758 | break; | |
759 | ||
760 | case 'X': /* Lisp expression read and evaluated */ | |
55b41ef5 | 761 | args[i] = Feval_minibuffer (callint_message, Qnil); |
ec28a64d MB |
762 | visargs[i] = last_minibuf_string; |
763 | break; | |
764 | ||
40b2421c KH |
765 | case 'Z': /* Coding-system symbol, or ignore the |
766 | argument if no prefix */ | |
767 | if (NILP (prefix_arg)) | |
768 | { | |
769 | args[i] = Qnil; | |
770 | varies[i] = -1; | |
771 | } | |
177c0ea7 | 772 | else |
40b2421c KH |
773 | { |
774 | args[i] | |
55b41ef5 | 775 | = Fread_non_nil_coding_system (callint_message); |
40b2421c KH |
776 | visargs[i] = last_minibuf_string; |
777 | } | |
778 | break; | |
779 | ||
780 | case 'z': /* Coding-system symbol or nil */ | |
55b41ef5 | 781 | args[i] = Fread_coding_system (callint_message, Qnil); |
40b2421c KH |
782 | visargs[i] = last_minibuf_string; |
783 | break; | |
784 | ||
e92d107b RS |
785 | /* We have a case for `+' so we get an error |
786 | if anyone tries to define one here. */ | |
787 | case '+': | |
ec28a64d | 788 | default: |
e92d107b | 789 | error ("Invalid control letter `%c' (%03o) in interactive calling string", |
a2db9982 | 790 | *tem, (unsigned char) *tem); |
ec28a64d MB |
791 | } |
792 | ||
793 | if (varies[i] == 0) | |
794 | arg_from_tty = 1; | |
795 | ||
6e54b3de | 796 | if (NILP (visargs[i]) && STRINGP (args[i])) |
ec28a64d MB |
797 | visargs[i] = args[i]; |
798 | ||
a2db9982 | 799 | tem = strchr (tem, '\n'); |
ec28a64d | 800 | if (tem) tem++; |
a2db9982 | 801 | else tem = ""; |
ec28a64d | 802 | } |
52614803 | 803 | unbind_to (speccount, Qnil); |
ec28a64d MB |
804 | |
805 | QUIT; | |
806 | ||
807 | args[0] = function; | |
808 | ||
7868a977 | 809 | if (arg_from_tty || !NILP (record_flag)) |
ec28a64d MB |
810 | { |
811 | visargs[0] = function; | |
becfa255 | 812 | for (i = 1; i < nargs; i++) |
824977b6 RS |
813 | { |
814 | if (varies[i] > 0) | |
815 | visargs[i] = Fcons (intern (callint_argfuns[varies[i]]), Qnil); | |
816 | else | |
817 | visargs[i] = quotify_arg (args[i]); | |
818 | } | |
becfa255 | 819 | Vcommand_history = Fcons (Flist (nargs, visargs), |
ec28a64d | 820 | Vcommand_history); |
225c2157 | 821 | /* Don't keep command history around forever. */ |
b9f0b172 | 822 | if (INTEGERP (Vhistory_length) && XINT (Vhistory_length) > 0) |
225c2157 RS |
823 | { |
824 | teml = Fnthcdr (Vhistory_length, Vcommand_history); | |
825 | if (CONSP (teml)) | |
f3fbd155 | 826 | XSETCDR (teml, Qnil); |
225c2157 | 827 | } |
ec28a64d MB |
828 | } |
829 | ||
824977b6 RS |
830 | /* If we used a marker to hold point, mark, or an end of the region, |
831 | temporarily, convert it to an integer now. */ | |
becfa255 | 832 | for (i = 1; i < nargs; i++) |
824977b6 RS |
833 | if (varies[i] >= 1 && varies[i] <= 4) |
834 | XSETINT (args[i], marker_position (args[i])); | |
835 | ||
09c886dc RS |
836 | if (record_then_fail) |
837 | Fbarf_if_buffer_read_only (); | |
838 | ||
0605dd79 RS |
839 | Vthis_command = save_this_command; |
840 | Vthis_original_command = save_this_original_command; | |
841 | real_this_command= save_real_this_command; | |
1344aad4 | 842 | KVAR (current_kboard, Vlast_command) = save_last_command; |
0605dd79 | 843 | |
ec28a64d MB |
844 | { |
845 | Lisp_Object val; | |
ec28a64d MB |
846 | specbind (Qcommand_debug_status, Qnil); |
847 | ||
b3e6f69c | 848 | temporarily_switch_to_single_kboard (NULL); |
becfa255 | 849 | val = Ffuncall (nargs, args); |
ec28a64d MB |
850 | UNGCPRO; |
851 | return unbind_to (speccount, val); | |
852 | } | |
177c0ea7 | 853 | } |
ec28a64d | 854 | |
16a97296 | 855 | DEFUE ("prefix-numeric-value", Fprefix_numeric_value, Sprefix_numeric_value, |
fdb82f93 PJ |
856 | 1, 1, 0, |
857 | doc: /* Return numeric meaning of raw prefix argument RAW. | |
858 | A raw prefix argument is what you get from `(interactive "P")'. | |
859 | Its numeric meaning is what you would get from `(interactive "p")'. */) | |
5842a27b | 860 | (Lisp_Object raw) |
ec28a64d MB |
861 | { |
862 | Lisp_Object val; | |
177c0ea7 | 863 | |
265a9e55 | 864 | if (NILP (raw)) |
acab6442 | 865 | XSETFASTINT (val, 1); |
fd5285f3 | 866 | else if (EQ (raw, Qminus)) |
ec28a64d | 867 | XSETINT (val, -1); |
70949dac KR |
868 | else if (CONSP (raw) && INTEGERP (XCAR (raw))) |
869 | XSETINT (val, XINT (XCAR (raw))); | |
6e54b3de | 870 | else if (INTEGERP (raw)) |
ec28a64d MB |
871 | val = raw; |
872 | else | |
acab6442 | 873 | XSETFASTINT (val, 1); |
ec28a64d MB |
874 | |
875 | return val; | |
876 | } | |
877 | ||
dfcf069d | 878 | void |
971de7fb | 879 | syms_of_callint (void) |
ec28a64d | 880 | { |
824977b6 RS |
881 | point_marker = Fmake_marker (); |
882 | staticpro (&point_marker); | |
883 | ||
55b41ef5 CY |
884 | callint_message = Qnil; |
885 | staticpro (&callint_message); | |
886 | ||
d67b4f80 DN |
887 | preserved_fns = pure_cons (intern_c_string ("region-beginning"), |
888 | pure_cons (intern_c_string ("region-end"), | |
889 | pure_cons (intern_c_string ("point"), | |
890 | pure_cons (intern_c_string ("mark"), Qnil)))); | |
03e130d5 | 891 | |
d67b4f80 | 892 | Qlist = intern_c_string ("list"); |
03e130d5 | 893 | staticpro (&Qlist); |
d67b4f80 | 894 | Qlet = intern_c_string ("let"); |
8450690a | 895 | staticpro (&Qlet); |
d67b4f80 | 896 | Qif = intern_c_string ("if"); |
120d0a23 | 897 | staticpro (&Qif); |
d67b4f80 | 898 | Qwhen = intern_c_string ("when"); |
120d0a23 | 899 | staticpro (&Qwhen); |
d67b4f80 | 900 | Qletx = intern_c_string ("let*"); |
8450690a | 901 | staticpro (&Qletx); |
d67b4f80 | 902 | Qsave_excursion = intern_c_string ("save-excursion"); |
8450690a | 903 | staticpro (&Qsave_excursion); |
d67b4f80 | 904 | Qprogn = intern_c_string ("progn"); |
079e479f | 905 | staticpro (&Qprogn); |
03e130d5 | 906 | |
d67b4f80 | 907 | Qminus = intern_c_string ("-"); |
ec28a64d MB |
908 | staticpro (&Qminus); |
909 | ||
d67b4f80 | 910 | Qplus = intern_c_string ("+"); |
fdb4a38c RS |
911 | staticpro (&Qplus); |
912 | ||
d67b4f80 | 913 | Qhandle_shift_selection = intern_c_string ("handle-shift-selection"); |
9bdb1538 CY |
914 | staticpro (&Qhandle_shift_selection); |
915 | ||
d67b4f80 | 916 | Qcall_interactively = intern_c_string ("call-interactively"); |
ec28a64d MB |
917 | staticpro (&Qcall_interactively); |
918 | ||
d67b4f80 | 919 | Qcommand_debug_status = intern_c_string ("command-debug-status"); |
ec28a64d MB |
920 | staticpro (&Qcommand_debug_status); |
921 | ||
d67b4f80 | 922 | Qenable_recursive_minibuffers = intern_c_string ("enable-recursive-minibuffers"); |
52614803 RS |
923 | staticpro (&Qenable_recursive_minibuffers); |
924 | ||
d67b4f80 | 925 | Qmouse_leave_buffer_hook = intern_c_string ("mouse-leave-buffer-hook"); |
ef2515c0 RS |
926 | staticpro (&Qmouse_leave_buffer_hook); |
927 | ||
1e0c5826 | 928 | DEFVAR_KBOARD ("prefix-arg", Vprefix_arg, |
fdb82f93 PJ |
929 | doc: /* The value of the prefix argument for the next editing command. |
930 | It may be a number, or the symbol `-' for just a minus sign as arg, | |
931 | or a list whose car is a number for just one or more C-u's | |
932 | or nil if no argument has been specified. | |
933 | ||
934 | You cannot examine this variable to find the argument for this command | |
935 | since it has been set to nil by the time you can look. | |
936 | Instead, you should use the variable `current-prefix-arg', although | |
937 | normally commands can get this prefix argument with (interactive "P"). */); | |
8c917bf2 | 938 | |
fe3fbdcc | 939 | DEFVAR_KBOARD ("last-prefix-arg", Vlast_prefix_arg, |
fdb82f93 PJ |
940 | doc: /* The value of the prefix argument for the previous editing command. |
941 | See `prefix-arg' for the meaning of the value. */); | |
fe3fbdcc | 942 | |
29208e82 | 943 | DEFVAR_LISP ("current-prefix-arg", Vcurrent_prefix_arg, |
fdb82f93 PJ |
944 | doc: /* The value of the prefix argument for this editing command. |
945 | It may be a number, or the symbol `-' for just a minus sign as arg, | |
946 | or a list whose car is a number for just one or more C-u's | |
947 | or nil if no argument has been specified. | |
948 | This is what `(interactive \"P\")' returns. */); | |
8c917bf2 KH |
949 | Vcurrent_prefix_arg = Qnil; |
950 | ||
29208e82 | 951 | DEFVAR_LISP ("command-history", Vcommand_history, |
fdb82f93 | 952 | doc: /* List of recent commands that read arguments from terminal. |
b014713c EZ |
953 | Each command is represented as a form to evaluate. |
954 | ||
955 | Maximum length of the history list is determined by the value | |
956 | of `history-length', which see. */); | |
ec28a64d MB |
957 | Vcommand_history = Qnil; |
958 | ||
29208e82 | 959 | DEFVAR_LISP ("command-debug-status", Vcommand_debug_status, |
fdb82f93 PJ |
960 | doc: /* Debugging status of current interactive command. |
961 | Bound each time `call-interactively' is called; | |
962 | may be set by the debugger as a reminder for itself. */); | |
ec28a64d MB |
963 | Vcommand_debug_status = Qnil; |
964 | ||
29208e82 | 965 | DEFVAR_LISP ("mark-even-if-inactive", Vmark_even_if_inactive, |
fdb82f93 PJ |
966 | doc: /* *Non-nil means you can use the mark even when inactive. |
967 | This option makes a difference in Transient Mark mode. | |
968 | When the option is non-nil, deactivation of the mark | |
969 | turns off region highlighting, but commands that use the mark | |
970 | behave as if the mark were still active. */); | |
a2b84f35 | 971 | Vmark_even_if_inactive = Qt; |
9f315aeb | 972 | |
29208e82 | 973 | DEFVAR_LISP ("mouse-leave-buffer-hook", Vmouse_leave_buffer_hook, |
fdb82f93 PJ |
974 | doc: /* Hook to run when about to switch windows with a mouse command. |
975 | Its purpose is to give temporary modes such as Isearch mode | |
976 | a way to turn themselves off when a mouse command switches windows. */); | |
ef2515c0 RS |
977 | Vmouse_leave_buffer_hook = Qnil; |
978 | ||
ec28a64d MB |
979 | defsubr (&Sinteractive); |
980 | defsubr (&Scall_interactively); | |
981 | defsubr (&Sprefix_numeric_value); | |
982 | } |