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ec28a64d | 1 | /* Call a Lisp function interactively. |
acaf905b | 2 | Copyright (C) 1985-1986, 1993-1995, 1997, 2000-2012 |
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" |
e6c3da20 | 30 | #include "character.h" |
ec28a64d | 31 | |
29208e82 | 32 | Lisp_Object Qminus, Qplus; |
ec28a64d | 33 | Lisp_Object Qcall_interactively; |
955cbe7b PE |
34 | static Lisp_Object Qcommand_debug_status; |
35 | static Lisp_Object Qenable_recursive_minibuffers; | |
ec28a64d | 36 | |
955cbe7b | 37 | static Lisp_Object Qhandle_shift_selection; |
9bdb1538 | 38 | |
29208e82 | 39 | Lisp_Object Qmouse_leave_buffer_hook; |
ef2515c0 | 40 | |
955cbe7b PE |
41 | static Lisp_Object Qlist, Qlet, Qletx, Qsave_excursion, Qprogn, Qif; |
42 | Lisp_Object Qwhen; | |
824977b6 RS |
43 | static Lisp_Object preserved_fns; |
44 | ||
45 | /* Marker used within call-interactively to refer to point. */ | |
46 | static Lisp_Object point_marker; | |
03e130d5 | 47 | |
55b41ef5 CY |
48 | /* String for the prompt text used in Fcall_interactively. */ |
49 | static Lisp_Object callint_message; | |
425b457e | 50 | \f |
ec28a64d MB |
51 | /* ARGSUSED */ |
52 | DEFUN ("interactive", Finteractive, Sinteractive, 0, UNEVALLED, 0, | |
fdb82f93 PJ |
53 | doc: /* Specify a way of parsing arguments for interactive use of a function. |
54 | For example, write | |
f9257eed AM |
55 | (defun foo (arg buf) "Doc string" (interactive "P\\nbbuffer: ") .... ) |
56 | to make ARG be the raw prefix argument, and set BUF to an existing buffer, | |
57 | when `foo' is called as a command. | |
fdb82f93 PJ |
58 | The "call" to `interactive' is actually a declaration rather than a function; |
59 | it tells `call-interactively' how to read arguments | |
60 | to pass to the function. | |
61 | When actually called, `interactive' just returns nil. | |
62 | ||
f9257eed AM |
63 | Usually the argument of `interactive' is a string containing a code letter |
64 | followed optionally by a prompt. (Some code letters do not use I/O to get | |
65 | the argument and do not use prompts.) To get several arguments, concatenate | |
66 | the individual strings, separating them by newline characters. | |
67 | Prompts are passed to format, and may use % escapes to print the | |
fdb82f93 PJ |
68 | arguments that have already been read. |
69 | If the argument is not a string, it is evaluated to get a list of | |
70 | arguments to pass to the function. | |
71 | Just `(interactive)' means pass no args when calling interactively. | |
72 | ||
73 | Code letters available are: | |
74 | a -- Function name: symbol with a function definition. | |
75 | b -- Name of existing buffer. | |
76 | B -- Name of buffer, possibly nonexistent. | |
77 | c -- Character (no input method is used). | |
78 | C -- Command name: symbol with interactive function definition. | |
79 | d -- Value of point as number. Does not do I/O. | |
80 | D -- Directory name. | |
e4920bc9 | 81 | e -- Parameterized event (i.e., one that's a list) that invoked this command. |
fdb82f93 PJ |
82 | If used more than once, the Nth `e' returns the Nth parameterized event. |
83 | This skips events that are integers or symbols. | |
84 | f -- Existing file name. | |
85 | F -- Possibly nonexistent file name. | |
75f9fbe8 | 86 | G -- Possibly nonexistent file name, defaulting to just directory name. |
fdb82f93 PJ |
87 | i -- Ignored, i.e. always nil. Does not do I/O. |
88 | k -- Key sequence (downcase the last event if needed to get a definition). | |
89 | K -- Key sequence to be redefined (do not downcase the last event). | |
90 | m -- Value of mark as number. Does not do I/O. | |
91 | M -- Any string. Inherits the current input method. | |
92 | n -- Number read using minibuffer. | |
425b457e | 93 | N -- Numeric prefix arg, or if none, do like code `n'. |
fdb82f93 PJ |
94 | p -- Prefix arg converted to number. Does not do I/O. |
95 | P -- Prefix arg in raw form. Does not do I/O. | |
96 | r -- Region: point and mark as 2 numeric args, smallest first. Does no I/O. | |
97 | s -- Any string. Does not inherit the current input method. | |
98 | S -- Any symbol. | |
39900c4e | 99 | U -- Mouse up event discarded by a previous k or K argument. |
b4d3bc10 | 100 | v -- Variable name: symbol that is `custom-variable-p'. |
fdb82f93 PJ |
101 | x -- Lisp expression read but not evaluated. |
102 | X -- Lisp expression read and evaluated. | |
103 | z -- Coding system. | |
104 | Z -- Coding system, nil if no prefix arg. | |
9bdb1538 CY |
105 | |
106 | In addition, if the string begins with `*', an error is signaled if | |
107 | the buffer is read-only. | |
1e49bfab LMI |
108 | If `@' appears at the beginning of the string, and if the key sequence |
109 | used to invoke the command includes any mouse events, then the window | |
110 | associated with the first of those events is selected before the | |
111 | command is run. | |
9bdb1538 | 112 | If the string begins with `^' and `shift-select-mode' is non-nil, |
2a4f8d3d | 113 | Emacs first calls the function `handle-shift-selection'. |
9bdb1538 CY |
114 | You may use `@', `*', and `^' together. They are processed in the |
115 | order that they appear, before reading any arguments. | |
d88bee5a | 116 | usage: (interactive &optional ARGS) */) |
5842a27b | 117 | (Lisp_Object args) |
ec28a64d MB |
118 | { |
119 | return Qnil; | |
120 | } | |
121 | ||
122 | /* Quotify EXP: if EXP is constant, return it. | |
123 | If EXP is not constant, return (quote EXP). */ | |
b1349114 | 124 | static Lisp_Object |
971de7fb | 125 | quotify_arg (register Lisp_Object exp) |
ec28a64d | 126 | { |
d032d5e7 SM |
127 | if (CONSP (exp) |
128 | || (SYMBOLP (exp) | |
129 | && !NILP (exp) && !EQ (exp, Qt))) | |
ec28a64d MB |
130 | return Fcons (Qquote, Fcons (exp, Qnil)); |
131 | ||
132 | return exp; | |
133 | } | |
134 | ||
135 | /* Modify EXP by quotifying each element (except the first). */ | |
b1349114 | 136 | static Lisp_Object |
971de7fb | 137 | quotify_args (Lisp_Object exp) |
ec28a64d MB |
138 | { |
139 | register Lisp_Object tail; | |
7539e11f KR |
140 | Lisp_Object next; |
141 | for (tail = exp; CONSP (tail); tail = next) | |
ec28a64d | 142 | { |
7539e11f | 143 | next = XCDR (tail); |
f3fbd155 | 144 | XSETCAR (tail, quotify_arg (XCAR (tail))); |
ec28a64d MB |
145 | } |
146 | return exp; | |
147 | } | |
148 | ||
648801d1 | 149 | static const char *callint_argfuns[] |
ec28a64d MB |
150 | = {"", "point", "mark", "region-beginning", "region-end"}; |
151 | ||
152 | static void | |
971de7fb | 153 | check_mark (int for_region) |
ec28a64d | 154 | { |
86c1cf23 | 155 | Lisp_Object tem; |
4b4deea2 | 156 | tem = Fmarker_buffer (BVAR (current_buffer, mark)); |
265a9e55 | 157 | if (NILP (tem) || (XBUFFER (tem) != current_buffer)) |
f203cf07 RS |
158 | error (for_region ? "The mark is not set now, so there is no region" |
159 | : "The mark is not set now"); | |
6497d2d8 | 160 | if (!NILP (Vtransient_mark_mode) && NILP (Vmark_even_if_inactive) |
4b4deea2 | 161 | && NILP (BVAR (current_buffer, mark_active))) |
f439241f | 162 | xsignal0 (Qmark_inactive); |
ec28a64d MB |
163 | } |
164 | ||
64ea14d3 RS |
165 | /* If the list of args INPUT was produced with an explicit call to |
166 | `list', look for elements that were computed with | |
167 | (region-beginning) or (region-end), and put those expressions into | |
168 | VALUES instead of the present values. | |
169 | ||
170 | This function doesn't return a value because it modifies elements | |
171 | of VALUES to do its job. */ | |
172 | ||
d1135afc | 173 | static void |
971de7fb | 174 | fix_command (Lisp_Object input, Lisp_Object values) |
d1135afc | 175 | { |
d032d5e7 | 176 | /* FIXME: Instead of this ugly hack, we should provide a way for an |
7200d79c SM |
177 | interactive spec to return an expression/function that will re-build the |
178 | args without user intervention. */ | |
d1135afc JB |
179 | if (CONSP (input)) |
180 | { | |
181 | Lisp_Object car; | |
182 | ||
183 | car = XCAR (input); | |
184 | /* Skip through certain special forms. */ | |
185 | while (EQ (car, Qlet) || EQ (car, Qletx) | |
186 | || EQ (car, Qsave_excursion) | |
187 | || EQ (car, Qprogn)) | |
188 | { | |
189 | while (CONSP (XCDR (input))) | |
190 | input = XCDR (input); | |
191 | input = XCAR (input); | |
192 | if (!CONSP (input)) | |
193 | break; | |
194 | car = XCAR (input); | |
195 | } | |
196 | if (EQ (car, Qlist)) | |
197 | { | |
198 | Lisp_Object intail, valtail; | |
199 | for (intail = Fcdr (input), valtail = values; | |
200 | CONSP (valtail); | |
5dc05618 | 201 | intail = Fcdr (intail), valtail = XCDR (valtail)) |
d1135afc JB |
202 | { |
203 | Lisp_Object elt; | |
204 | elt = Fcar (intail); | |
205 | if (CONSP (elt)) | |
206 | { | |
207 | Lisp_Object presflag, carelt; | |
208 | carelt = Fcar (elt); | |
209 | /* If it is (if X Y), look at Y. */ | |
210 | if (EQ (carelt, Qif) | |
211 | && EQ (Fnthcdr (make_number (3), elt), Qnil)) | |
212 | elt = Fnth (make_number (2), elt); | |
213 | /* If it is (when ... Y), look at Y. */ | |
214 | else if (EQ (carelt, Qwhen)) | |
215 | { | |
216 | while (CONSP (XCDR (elt))) | |
217 | elt = XCDR (elt); | |
218 | elt = Fcar (elt); | |
219 | } | |
220 | ||
221 | /* If the function call we're looking at | |
222 | is a special preserved one, copy the | |
223 | whole expression for this argument. */ | |
224 | if (CONSP (elt)) | |
225 | { | |
226 | presflag = Fmemq (Fcar (elt), preserved_fns); | |
227 | if (!NILP (presflag)) | |
228 | Fsetcar (valtail, Fcar (intail)); | |
229 | } | |
230 | } | |
231 | } | |
232 | } | |
233 | } | |
234 | } | |
ec28a64d | 235 | |
d455db8e | 236 | DEFUN ("call-interactively", Fcall_interactively, Scall_interactively, 1, 3, 0, |
54e10184 | 237 | doc: /* Call FUNCTION, providing args according to its interactive calling specs. |
fdb82f93 PJ |
238 | Return the value FUNCTION returns. |
239 | The function contains a specification of how to do the argument reading. | |
240 | In the case of user-defined functions, this is specified by placing a call | |
241 | to the function `interactive' at the top level of the function body. | |
242 | See `interactive'. | |
243 | ||
244 | Optional second arg RECORD-FLAG non-nil | |
245 | means unconditionally put this command in the command-history. | |
246 | Otherwise, this is done only if an arg is read using the minibuffer. | |
2a95a27c | 247 | |
fdb82f93 | 248 | Optional third arg KEYS, if given, specifies the sequence of events to |
2a95a27c CY |
249 | supply, as a vector, if the command inquires which events were used to |
250 | invoke it. If KEYS is omitted or nil, the return value of | |
251 | `this-command-keys-vector' is used. */) | |
5842a27b | 252 | (Lisp_Object function, Lisp_Object record_flag, Lisp_Object keys) |
ec28a64d MB |
253 | { |
254 | Lisp_Object *args, *visargs; | |
ec28a64d | 255 | Lisp_Object specs; |
079e479f | 256 | Lisp_Object filter_specs; |
ec28a64d | 257 | Lisp_Object teml; |
39900c4e | 258 | Lisp_Object up_event; |
52614803 | 259 | Lisp_Object enable; |
d311d28c | 260 | ptrdiff_t speccount = SPECPDL_INDEX (); |
ec28a64d | 261 | |
bc78232c JB |
262 | /* The index of the next element of this_command_keys to examine for |
263 | the 'e' interactive code. */ | |
d311d28c | 264 | ptrdiff_t next_event; |
bc78232c | 265 | |
ec28a64d | 266 | Lisp_Object prefix_arg; |
a2db9982 | 267 | char *string; |
b0e80955 | 268 | const char *tem; |
63007de2 JB |
269 | |
270 | /* If varies[i] > 0, the i'th argument shouldn't just have its value | |
271 | in this call quoted in the command history. It should be | |
272 | recorded as a call to the function named callint_argfuns[varies[i]]. */ | |
f66c7cf8 | 273 | signed char *varies; |
63007de2 | 274 | |
f66c7cf8 | 275 | ptrdiff_t i, nargs; |
c5101a77 | 276 | int foo; |
ec28a64d | 277 | int arg_from_tty = 0; |
39900c4e | 278 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; |
d311d28c | 279 | ptrdiff_t key_count; |
09c886dc | 280 | int record_then_fail = 0; |
d455db8e | 281 | |
0605dd79 RS |
282 | Lisp_Object save_this_command, save_last_command; |
283 | Lisp_Object save_this_original_command, save_real_this_command; | |
284 | ||
285 | save_this_command = Vthis_command; | |
286 | save_this_original_command = Vthis_original_command; | |
f2d6a3df | 287 | save_real_this_command = Vreal_this_command; |
1344aad4 | 288 | save_last_command = KVAR (current_kboard, Vlast_command); |
0605dd79 | 289 | |
d455db8e RS |
290 | if (NILP (keys)) |
291 | keys = this_command_keys, key_count = this_command_key_count; | |
292 | else | |
293 | { | |
b7826503 | 294 | CHECK_VECTOR (keys); |
77b37c05 | 295 | key_count = ASIZE (keys); |
d455db8e | 296 | } |
ec28a64d | 297 | |
f2d6a3df | 298 | /* Save this now, since use of minibuffer will clobber it. */ |
8c917bf2 | 299 | prefix_arg = Vcurrent_prefix_arg; |
ec28a64d | 300 | |
6e54b3de | 301 | if (SYMBOLP (function)) |
afa4c0f3 | 302 | enable = Fget (function, Qenable_recursive_minibuffers); |
4f895918 GM |
303 | else |
304 | enable = Qnil; | |
52614803 | 305 | |
ec28a64d MB |
306 | specs = Qnil; |
307 | string = 0; | |
079e479f RS |
308 | /* The idea of FILTER_SPECS is to provide away to |
309 | specify how to represent the arguments in command history. | |
310 | The feature is not fully implemented. */ | |
311 | filter_specs = Qnil; | |
ec28a64d | 312 | |
f2d6a3df SM |
313 | /* If k or K discard an up-event, save it here so it can be retrieved with |
314 | U. */ | |
39900c4e KS |
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); |
3300e6fd | 341 | uintmax_t events = 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; |
a1759b76 | 349 | if (events != 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; | |
f2d6a3df | 374 | Vreal_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 | ||
f2d6a3df | 381 | /* Here if function specifies a string to control parsing the defaults. */ |
ec28a64d | 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 | |
f66c7cf8 PE |
467 | if (min (MOST_POSITIVE_FIXNUM, |
468 | min (PTRDIFF_MAX, SIZE_MAX) / sizeof (Lisp_Object)) | |
469 | < nargs) | |
470 | memory_full (SIZE_MAX); | |
471 | ||
becfa255 PE |
472 | args = (Lisp_Object *) alloca (nargs * sizeof (Lisp_Object)); |
473 | visargs = (Lisp_Object *) alloca (nargs * sizeof (Lisp_Object)); | |
f66c7cf8 | 474 | varies = (signed char *) alloca (nargs); |
ec28a64d | 475 | |
becfa255 | 476 | for (i = 0; i < nargs; i++) |
ec28a64d MB |
477 | { |
478 | args[i] = Qnil; | |
479 | visargs[i] = Qnil; | |
480 | varies[i] = 0; | |
481 | } | |
482 | ||
39900c4e | 483 | GCPRO5 (prefix_arg, function, *args, *visargs, up_event); |
becfa255 PE |
484 | gcpro3.nvars = nargs; |
485 | gcpro4.nvars = nargs; | |
ec28a64d | 486 | |
52614803 RS |
487 | if (!NILP (enable)) |
488 | specbind (Qenable_recursive_minibuffers, Qt); | |
489 | ||
ec28a64d | 490 | tem = string; |
6bc1abf2 | 491 | for (i = 1; *tem; i++) |
ec28a64d | 492 | { |
ca22b785 AS |
493 | visargs[0] = make_string (tem + 1, strcspn (tem + 1, "\n")); |
494 | if (strchr (SSDATA (visargs[0]), '%')) | |
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]; | |
c8fd3bd0 GM |
532 | /* See bug#8479. */ |
533 | if (! CHARACTERP (teml)) error ("Non-character input-event"); | |
ec28a64d MB |
534 | visargs[i] = Fchar_to_string (teml); |
535 | break; | |
536 | ||
537 | case 'C': /* Command: symbol with interactive function */ | |
55b41ef5 | 538 | visargs[i] = Fcompleting_read (callint_message, |
ff9cd111 | 539 | Vobarray, Qcommandp, |
93fb51ae | 540 | Qt, Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
541 | /* Passing args[i] directly stimulates compiler bug */ |
542 | teml = visargs[i]; | |
543 | args[i] = Fintern (teml, Qnil); | |
544 | break; | |
545 | ||
546 | case 'd': /* Value of point. Does not do I/O. */ | |
dc330139 | 547 | set_marker_both (point_marker, Qnil, PT, PT_BYTE); |
824977b6 | 548 | args[i] = point_marker; |
ec28a64d MB |
549 | /* visargs[i] = Qnil; */ |
550 | varies[i] = 1; | |
551 | break; | |
552 | ||
ec28a64d | 553 | case 'D': /* Directory name. */ |
55b41ef5 | 554 | args[i] = Fread_file_name (callint_message, Qnil, |
4b4deea2 | 555 | BVAR (current_buffer, directory), Qlambda, Qnil, |
93ed5f9d | 556 | Qfile_directory_p); |
ec28a64d MB |
557 | break; |
558 | ||
559 | case 'f': /* Existing file name. */ | |
55b41ef5 | 560 | args[i] = Fread_file_name (callint_message, |
93ed5f9d | 561 | Qnil, Qnil, Qlambda, Qnil, Qnil); |
ec28a64d MB |
562 | break; |
563 | ||
564 | case 'F': /* Possibly nonexistent file name. */ | |
55b41ef5 | 565 | args[i] = Fread_file_name (callint_message, |
93ed5f9d | 566 | Qnil, Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
567 | break; |
568 | ||
75f9fbe8 RS |
569 | case 'G': /* Possibly nonexistent file name, |
570 | default to directory alone. */ | |
55b41ef5 | 571 | args[i] = Fread_file_name (callint_message, |
977f6cfb | 572 | Qnil, Qnil, Qnil, empty_unibyte_string, Qnil); |
75f9fbe8 RS |
573 | break; |
574 | ||
40b2421c KH |
575 | case 'i': /* Ignore an argument -- Does not do I/O */ |
576 | varies[i] = -1; | |
577 | break; | |
578 | ||
1989e7bc | 579 | case 'k': /* Key sequence. */ |
c631c234 | 580 | { |
d311d28c | 581 | ptrdiff_t speccount1 = SPECPDL_INDEX (); |
c631c234 | 582 | specbind (Qcursor_in_echo_area, Qt); |
54b33868 MR |
583 | /* Prompt in `minibuffer-prompt' face. */ |
584 | Fput_text_property (make_number (0), | |
585 | make_number (SCHARS (callint_message)), | |
586 | Qface, Qminibuffer_prompt, callint_message); | |
55b41ef5 | 587 | args[i] = Fread_key_sequence (callint_message, |
ad4ac475 | 588 | Qnil, Qnil, Qnil, Qnil); |
c631c234 RS |
589 | unbind_to (speccount1, Qnil); |
590 | teml = args[i]; | |
a1bfe073 | 591 | visargs[i] = Fkey_description (teml, Qnil); |
cdfac812 RS |
592 | |
593 | /* If the key sequence ends with a down-event, | |
594 | discard the following up-event. */ | |
595 | teml = Faref (args[i], make_number (XINT (Flength (args[i])) - 1)); | |
596 | if (CONSP (teml)) | |
70949dac | 597 | teml = XCAR (teml); |
cdfac812 RS |
598 | if (SYMBOLP (teml)) |
599 | { | |
600 | Lisp_Object tem2; | |
601 | ||
602 | teml = Fget (teml, intern ("event-symbol-elements")); | |
4b27f17c AS |
603 | /* Ignore first element, which is the base key. */ |
604 | tem2 = Fmemq (intern ("down"), Fcdr (teml)); | |
cdfac812 | 605 | if (! NILP (tem2)) |
43811b4e | 606 | up_event = Fread_event (Qnil, Qnil, Qnil); |
cdfac812 | 607 | } |
c631c234 | 608 | } |
1989e7bc RS |
609 | break; |
610 | ||
611 | case 'K': /* Key sequence to be defined. */ | |
c631c234 | 612 | { |
d311d28c | 613 | ptrdiff_t speccount1 = SPECPDL_INDEX (); |
c631c234 | 614 | specbind (Qcursor_in_echo_area, Qt); |
54b33868 MR |
615 | /* Prompt in `minibuffer-prompt' face. */ |
616 | Fput_text_property (make_number (0), | |
617 | make_number (SCHARS (callint_message)), | |
618 | Qface, Qminibuffer_prompt, callint_message); | |
55b41ef5 | 619 | args[i] = Fread_key_sequence (callint_message, |
ad4ac475 | 620 | Qnil, Qt, Qnil, Qnil); |
c631c234 | 621 | teml = args[i]; |
a1bfe073 | 622 | visargs[i] = Fkey_description (teml, Qnil); |
c631c234 | 623 | unbind_to (speccount1, Qnil); |
cdfac812 RS |
624 | |
625 | /* If the key sequence ends with a down-event, | |
626 | discard the following up-event. */ | |
627 | teml = Faref (args[i], make_number (XINT (Flength (args[i])) - 1)); | |
628 | if (CONSP (teml)) | |
70949dac | 629 | teml = XCAR (teml); |
cdfac812 RS |
630 | if (SYMBOLP (teml)) |
631 | { | |
632 | Lisp_Object tem2; | |
633 | ||
634 | teml = Fget (teml, intern ("event-symbol-elements")); | |
4b27f17c AS |
635 | /* Ignore first element, which is the base key. */ |
636 | tem2 = Fmemq (intern ("down"), Fcdr (teml)); | |
cdfac812 | 637 | if (! NILP (tem2)) |
43811b4e | 638 | up_event = Fread_event (Qnil, Qnil, Qnil); |
cdfac812 | 639 | } |
c631c234 | 640 | } |
ec28a64d MB |
641 | break; |
642 | ||
39900c4e KS |
643 | case 'U': /* Up event from last k or K */ |
644 | if (!NILP (up_event)) | |
645 | { | |
646 | args[i] = Fmake_vector (make_number (1), up_event); | |
647 | up_event = Qnil; | |
648 | teml = args[i]; | |
649 | visargs[i] = Fkey_description (teml, Qnil); | |
650 | } | |
651 | break; | |
652 | ||
bc78232c | 653 | case 'e': /* The invoking event. */ |
d455db8e | 654 | if (next_event >= key_count) |
bc78232c | 655 | error ("%s must be bound to an event with parameters", |
6e54b3de | 656 | (SYMBOLP (function) |
51b59d79 | 657 | ? SSDATA (SYMBOL_NAME (function)) |
bc78232c | 658 | : "command")); |
1b511542 SM |
659 | args[i] = AREF (keys, next_event); |
660 | next_event++; | |
e5d77022 | 661 | varies[i] = -1; |
dbc4e1c1 JB |
662 | |
663 | /* Find the next parameterized event. */ | |
d455db8e | 664 | while (next_event < key_count |
1b511542 | 665 | && !(EVENT_HAS_PARAMETERS (AREF (keys, next_event)))) |
dbc4e1c1 JB |
666 | next_event++; |
667 | ||
63007de2 JB |
668 | break; |
669 | ||
ec28a64d | 670 | case 'm': /* Value of mark. Does not do I/O. */ |
f203cf07 | 671 | check_mark (0); |
ec28a64d | 672 | /* visargs[i] = Qnil; */ |
4b4deea2 | 673 | args[i] = BVAR (current_buffer, mark); |
ec28a64d MB |
674 | varies[i] = 2; |
675 | break; | |
676 | ||
93fb51ae KH |
677 | case 'M': /* String read via minibuffer with |
678 | inheriting the current input method. */ | |
55b41ef5 | 679 | args[i] = Fread_string (callint_message, |
93fb51ae KH |
680 | Qnil, Qnil, Qnil, Qt); |
681 | break; | |
682 | ||
425b457e | 683 | case 'N': /* Prefix arg as number, else number from minibuffer */ |
265a9e55 | 684 | if (!NILP (prefix_arg)) |
ec28a64d MB |
685 | goto have_prefix_arg; |
686 | case 'n': /* Read number from minibuffer. */ | |
f0490a0b RS |
687 | { |
688 | int first = 1; | |
689 | do | |
690 | { | |
a3e8cbda | 691 | Lisp_Object str; |
e7c4e229 | 692 | if (! first) |
f0490a0b RS |
693 | { |
694 | message ("Please enter a number."); | |
e7c4e229 | 695 | sit_for (make_number (1), 0, 0); |
f0490a0b RS |
696 | } |
697 | first = 0; | |
698 | ||
a3e8cbda | 699 | str = Fread_from_minibuffer (callint_message, |
93fb51ae | 700 | Qnil, Qnil, Qnil, Qnil, Qnil, |
ae4c2a3b | 701 | Qnil); |
a3e8cbda | 702 | if (! STRINGP (str) || SCHARS (str) == 0) |
f0490a0b RS |
703 | args[i] = Qnil; |
704 | else | |
a3e8cbda | 705 | args[i] = Fread (str); |
f0490a0b RS |
706 | } |
707 | while (! NUMBERP (args[i])); | |
708 | } | |
55b41ef5 | 709 | visargs[i] = args[i]; |
ec28a64d MB |
710 | break; |
711 | ||
712 | case 'P': /* Prefix arg in raw form. Does no I/O. */ | |
ec28a64d MB |
713 | args[i] = prefix_arg; |
714 | /* visargs[i] = Qnil; */ | |
715 | varies[i] = -1; | |
716 | break; | |
717 | ||
718 | case 'p': /* Prefix arg converted to number. No I/O. */ | |
71eda2d5 | 719 | have_prefix_arg: |
ec28a64d MB |
720 | args[i] = Fprefix_numeric_value (prefix_arg); |
721 | /* visargs[i] = Qnil; */ | |
722 | varies[i] = -1; | |
723 | break; | |
724 | ||
725 | case 'r': /* Region, point and mark as 2 args. */ | |
f203cf07 | 726 | check_mark (1); |
dc330139 | 727 | set_marker_both (point_marker, Qnil, PT, PT_BYTE); |
ec28a64d | 728 | /* visargs[i+1] = Qnil; */ |
4b4deea2 | 729 | foo = marker_position (BVAR (current_buffer, mark)); |
ec28a64d | 730 | /* visargs[i] = Qnil; */ |
4b4deea2 | 731 | args[i] = PT < foo ? point_marker : BVAR (current_buffer, mark); |
ec28a64d | 732 | varies[i] = 3; |
4b4deea2 | 733 | args[++i] = PT > foo ? point_marker : BVAR (current_buffer, mark); |
ec28a64d MB |
734 | varies[i] = 4; |
735 | break; | |
736 | ||
93fb51ae KH |
737 | case 's': /* String read via minibuffer without |
738 | inheriting the current input method. */ | |
55b41ef5 | 739 | args[i] = Fread_string (callint_message, |
93fb51ae | 740 | Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
741 | break; |
742 | ||
743 | case 'S': /* Any symbol. */ | |
55b41ef5 | 744 | visargs[i] = Fread_string (callint_message, |
93fb51ae | 745 | Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
746 | /* Passing args[i] directly stimulates compiler bug */ |
747 | teml = visargs[i]; | |
748 | args[i] = Fintern (teml, Qnil); | |
749 | break; | |
750 | ||
751 | case 'v': /* Variable name: symbol that is | |
b4d3bc10 | 752 | custom-variable-p. */ |
55b41ef5 | 753 | args[i] = Fread_variable (callint_message, Qnil); |
ec28a64d MB |
754 | visargs[i] = last_minibuf_string; |
755 | break; | |
756 | ||
757 | case 'x': /* Lisp expression read but not evaluated */ | |
55b41ef5 | 758 | args[i] = Fread_minibuffer (callint_message, Qnil); |
ec28a64d MB |
759 | visargs[i] = last_minibuf_string; |
760 | break; | |
761 | ||
762 | case 'X': /* Lisp expression read and evaluated */ | |
55b41ef5 | 763 | args[i] = Feval_minibuffer (callint_message, Qnil); |
ec28a64d MB |
764 | visargs[i] = last_minibuf_string; |
765 | break; | |
766 | ||
40b2421c KH |
767 | case 'Z': /* Coding-system symbol, or ignore the |
768 | argument if no prefix */ | |
769 | if (NILP (prefix_arg)) | |
770 | { | |
771 | args[i] = Qnil; | |
772 | varies[i] = -1; | |
773 | } | |
177c0ea7 | 774 | else |
40b2421c KH |
775 | { |
776 | args[i] | |
55b41ef5 | 777 | = Fread_non_nil_coding_system (callint_message); |
40b2421c KH |
778 | visargs[i] = last_minibuf_string; |
779 | } | |
780 | break; | |
781 | ||
782 | case 'z': /* Coding-system symbol or nil */ | |
55b41ef5 | 783 | args[i] = Fread_coding_system (callint_message, Qnil); |
40b2421c KH |
784 | visargs[i] = last_minibuf_string; |
785 | break; | |
786 | ||
e92d107b RS |
787 | /* We have a case for `+' so we get an error |
788 | if anyone tries to define one here. */ | |
789 | case '+': | |
ec28a64d | 790 | default: |
e6c3da20 EZ |
791 | error ("Invalid control letter `%c' (#o%03o, #x%04x) in interactive calling string", |
792 | STRING_CHAR ((unsigned char *) tem), | |
793 | (unsigned) STRING_CHAR ((unsigned char *) tem), | |
794 | (unsigned) STRING_CHAR ((unsigned char *) tem)); | |
ec28a64d MB |
795 | } |
796 | ||
797 | if (varies[i] == 0) | |
798 | arg_from_tty = 1; | |
799 | ||
6e54b3de | 800 | if (NILP (visargs[i]) && STRINGP (args[i])) |
ec28a64d MB |
801 | visargs[i] = args[i]; |
802 | ||
a2db9982 | 803 | tem = strchr (tem, '\n'); |
ec28a64d | 804 | if (tem) tem++; |
a2db9982 | 805 | else tem = ""; |
ec28a64d | 806 | } |
52614803 | 807 | unbind_to (speccount, Qnil); |
ec28a64d MB |
808 | |
809 | QUIT; | |
810 | ||
811 | args[0] = function; | |
812 | ||
7868a977 | 813 | if (arg_from_tty || !NILP (record_flag)) |
ec28a64d MB |
814 | { |
815 | visargs[0] = function; | |
becfa255 | 816 | for (i = 1; i < nargs; i++) |
824977b6 RS |
817 | { |
818 | if (varies[i] > 0) | |
819 | visargs[i] = Fcons (intern (callint_argfuns[varies[i]]), Qnil); | |
820 | else | |
821 | visargs[i] = quotify_arg (args[i]); | |
822 | } | |
becfa255 | 823 | Vcommand_history = Fcons (Flist (nargs, visargs), |
ec28a64d | 824 | Vcommand_history); |
225c2157 | 825 | /* Don't keep command history around forever. */ |
b9f0b172 | 826 | if (INTEGERP (Vhistory_length) && XINT (Vhistory_length) > 0) |
225c2157 RS |
827 | { |
828 | teml = Fnthcdr (Vhistory_length, Vcommand_history); | |
829 | if (CONSP (teml)) | |
f3fbd155 | 830 | XSETCDR (teml, Qnil); |
225c2157 | 831 | } |
ec28a64d MB |
832 | } |
833 | ||
824977b6 RS |
834 | /* If we used a marker to hold point, mark, or an end of the region, |
835 | temporarily, convert it to an integer now. */ | |
becfa255 | 836 | for (i = 1; i < nargs; i++) |
824977b6 RS |
837 | if (varies[i] >= 1 && varies[i] <= 4) |
838 | XSETINT (args[i], marker_position (args[i])); | |
839 | ||
09c886dc RS |
840 | if (record_then_fail) |
841 | Fbarf_if_buffer_read_only (); | |
842 | ||
0605dd79 RS |
843 | Vthis_command = save_this_command; |
844 | Vthis_original_command = save_this_original_command; | |
f2d6a3df | 845 | Vreal_this_command = save_real_this_command; |
1344aad4 | 846 | KVAR (current_kboard, Vlast_command) = save_last_command; |
0605dd79 | 847 | |
ec28a64d MB |
848 | { |
849 | Lisp_Object val; | |
ec28a64d MB |
850 | specbind (Qcommand_debug_status, Qnil); |
851 | ||
b3e6f69c | 852 | temporarily_switch_to_single_kboard (NULL); |
becfa255 | 853 | val = Ffuncall (nargs, args); |
ec28a64d MB |
854 | UNGCPRO; |
855 | return unbind_to (speccount, val); | |
856 | } | |
177c0ea7 | 857 | } |
ec28a64d | 858 | |
a7ca3326 | 859 | DEFUN ("prefix-numeric-value", Fprefix_numeric_value, Sprefix_numeric_value, |
fdb82f93 PJ |
860 | 1, 1, 0, |
861 | doc: /* Return numeric meaning of raw prefix argument RAW. | |
862 | A raw prefix argument is what you get from `(interactive "P")'. | |
863 | Its numeric meaning is what you would get from `(interactive "p")'. */) | |
5842a27b | 864 | (Lisp_Object raw) |
ec28a64d MB |
865 | { |
866 | Lisp_Object val; | |
177c0ea7 | 867 | |
265a9e55 | 868 | if (NILP (raw)) |
acab6442 | 869 | XSETFASTINT (val, 1); |
fd5285f3 | 870 | else if (EQ (raw, Qminus)) |
ec28a64d | 871 | XSETINT (val, -1); |
70949dac KR |
872 | else if (CONSP (raw) && INTEGERP (XCAR (raw))) |
873 | XSETINT (val, XINT (XCAR (raw))); | |
6e54b3de | 874 | else if (INTEGERP (raw)) |
ec28a64d MB |
875 | val = raw; |
876 | else | |
acab6442 | 877 | XSETFASTINT (val, 1); |
ec28a64d MB |
878 | |
879 | return val; | |
880 | } | |
881 | ||
dfcf069d | 882 | void |
971de7fb | 883 | syms_of_callint (void) |
ec28a64d | 884 | { |
824977b6 RS |
885 | point_marker = Fmake_marker (); |
886 | staticpro (&point_marker); | |
887 | ||
55b41ef5 CY |
888 | callint_message = Qnil; |
889 | staticpro (&callint_message); | |
890 | ||
d67b4f80 DN |
891 | preserved_fns = pure_cons (intern_c_string ("region-beginning"), |
892 | pure_cons (intern_c_string ("region-end"), | |
893 | pure_cons (intern_c_string ("point"), | |
894 | pure_cons (intern_c_string ("mark"), Qnil)))); | |
03e130d5 | 895 | |
cd3520a4 JB |
896 | DEFSYM (Qlist, "list"); |
897 | DEFSYM (Qlet, "let"); | |
898 | DEFSYM (Qif, "if"); | |
899 | DEFSYM (Qwhen, "when"); | |
900 | DEFSYM (Qletx, "let*"); | |
901 | DEFSYM (Qsave_excursion, "save-excursion"); | |
902 | DEFSYM (Qprogn, "progn"); | |
903 | DEFSYM (Qminus, "-"); | |
904 | DEFSYM (Qplus, "+"); | |
905 | DEFSYM (Qhandle_shift_selection, "handle-shift-selection"); | |
906 | DEFSYM (Qcall_interactively, "call-interactively"); | |
907 | DEFSYM (Qcommand_debug_status, "command-debug-status"); | |
908 | DEFSYM (Qenable_recursive_minibuffers, "enable-recursive-minibuffers"); | |
909 | DEFSYM (Qmouse_leave_buffer_hook, "mouse-leave-buffer-hook"); | |
ef2515c0 | 910 | |
1e0c5826 | 911 | DEFVAR_KBOARD ("prefix-arg", Vprefix_arg, |
fdb82f93 PJ |
912 | doc: /* The value of the prefix argument for the next editing command. |
913 | It may be a number, or the symbol `-' for just a minus sign as arg, | |
914 | or a list whose car is a number for just one or more C-u's | |
915 | or nil if no argument has been specified. | |
916 | ||
917 | You cannot examine this variable to find the argument for this command | |
918 | since it has been set to nil by the time you can look. | |
919 | Instead, you should use the variable `current-prefix-arg', although | |
920 | normally commands can get this prefix argument with (interactive "P"). */); | |
8c917bf2 | 921 | |
fe3fbdcc | 922 | DEFVAR_KBOARD ("last-prefix-arg", Vlast_prefix_arg, |
fdb82f93 PJ |
923 | doc: /* The value of the prefix argument for the previous editing command. |
924 | See `prefix-arg' for the meaning of the value. */); | |
fe3fbdcc | 925 | |
29208e82 | 926 | DEFVAR_LISP ("current-prefix-arg", Vcurrent_prefix_arg, |
fdb82f93 PJ |
927 | doc: /* The value of the prefix argument for this editing command. |
928 | It may be a number, or the symbol `-' for just a minus sign as arg, | |
929 | or a list whose car is a number for just one or more C-u's | |
930 | or nil if no argument has been specified. | |
931 | This is what `(interactive \"P\")' returns. */); | |
8c917bf2 KH |
932 | Vcurrent_prefix_arg = Qnil; |
933 | ||
29208e82 | 934 | DEFVAR_LISP ("command-history", Vcommand_history, |
fdb82f93 | 935 | doc: /* List of recent commands that read arguments from terminal. |
b014713c EZ |
936 | Each command is represented as a form to evaluate. |
937 | ||
938 | Maximum length of the history list is determined by the value | |
939 | of `history-length', which see. */); | |
ec28a64d MB |
940 | Vcommand_history = Qnil; |
941 | ||
29208e82 | 942 | DEFVAR_LISP ("command-debug-status", Vcommand_debug_status, |
fdb82f93 PJ |
943 | doc: /* Debugging status of current interactive command. |
944 | Bound each time `call-interactively' is called; | |
945 | may be set by the debugger as a reminder for itself. */); | |
ec28a64d MB |
946 | Vcommand_debug_status = Qnil; |
947 | ||
29208e82 | 948 | DEFVAR_LISP ("mark-even-if-inactive", Vmark_even_if_inactive, |
fb7ada5f | 949 | doc: /* Non-nil means you can use the mark even when inactive. |
fdb82f93 PJ |
950 | This option makes a difference in Transient Mark mode. |
951 | When the option is non-nil, deactivation of the mark | |
952 | turns off region highlighting, but commands that use the mark | |
953 | behave as if the mark were still active. */); | |
a2b84f35 | 954 | Vmark_even_if_inactive = Qt; |
9f315aeb | 955 | |
29208e82 | 956 | DEFVAR_LISP ("mouse-leave-buffer-hook", Vmouse_leave_buffer_hook, |
fdb82f93 PJ |
957 | doc: /* Hook to run when about to switch windows with a mouse command. |
958 | Its purpose is to give temporary modes such as Isearch mode | |
959 | a way to turn themselves off when a mouse command switches windows. */); | |
ef2515c0 RS |
960 | Vmouse_leave_buffer_hook = Qnil; |
961 | ||
ec28a64d MB |
962 | defsubr (&Sinteractive); |
963 | defsubr (&Scall_interactively); | |
964 | defsubr (&Sprefix_numeric_value); | |
965 | } |