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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; |
29208e82 | 33 | Lisp_Object Qcommand_debug_status; |
52614803 | 34 | Lisp_Object Qenable_recursive_minibuffers; |
ec28a64d | 35 | |
84db11d6 | 36 | Lisp_Object Qhandle_shift_selection; |
9bdb1538 | 37 | |
29208e82 | 38 | Lisp_Object Qmouse_leave_buffer_hook; |
ef2515c0 | 39 | |
120d0a23 | 40 | Lisp_Object Qlist, Qlet, Qletx, Qsave_excursion, Qprogn, Qif, Qwhen; |
824977b6 RS |
41 | static Lisp_Object preserved_fns; |
42 | ||
43 | /* Marker used within call-interactively to refer to point. */ | |
44 | static Lisp_Object point_marker; | |
03e130d5 | 45 | |
55b41ef5 CY |
46 | /* String for the prompt text used in Fcall_interactively. */ |
47 | static Lisp_Object callint_message; | |
425b457e | 48 | \f |
ec28a64d MB |
49 | /* ARGSUSED */ |
50 | DEFUN ("interactive", Finteractive, Sinteractive, 0, UNEVALLED, 0, | |
fdb82f93 PJ |
51 | doc: /* Specify a way of parsing arguments for interactive use of a function. |
52 | For example, write | |
f9257eed AM |
53 | (defun foo (arg buf) "Doc string" (interactive "P\\nbbuffer: ") .... ) |
54 | to make ARG be the raw prefix argument, and set BUF to an existing buffer, | |
55 | when `foo' is called as a command. | |
fdb82f93 PJ |
56 | The "call" to `interactive' is actually a declaration rather than a function; |
57 | it tells `call-interactively' how to read arguments | |
58 | to pass to the function. | |
59 | When actually called, `interactive' just returns nil. | |
60 | ||
f9257eed AM |
61 | Usually the argument of `interactive' is a string containing a code letter |
62 | followed optionally by a prompt. (Some code letters do not use I/O to get | |
63 | the argument and do not use prompts.) To get several arguments, concatenate | |
64 | the individual strings, separating them by newline characters. | |
65 | Prompts are passed to format, and may use % escapes to print the | |
fdb82f93 PJ |
66 | arguments that have already been read. |
67 | If the argument is not a string, it is evaluated to get a list of | |
68 | arguments to pass to the function. | |
69 | Just `(interactive)' means pass no args when calling interactively. | |
70 | ||
71 | Code letters available are: | |
72 | a -- Function name: symbol with a function definition. | |
73 | b -- Name of existing buffer. | |
74 | B -- Name of buffer, possibly nonexistent. | |
75 | c -- Character (no input method is used). | |
76 | C -- Command name: symbol with interactive function definition. | |
77 | d -- Value of point as number. Does not do I/O. | |
78 | D -- Directory name. | |
79 | e -- Parametrized event (i.e., one that's a list) that invoked this command. | |
80 | If used more than once, the Nth `e' returns the Nth parameterized event. | |
81 | This skips events that are integers or symbols. | |
82 | f -- Existing file name. | |
83 | F -- Possibly nonexistent file name. | |
75f9fbe8 | 84 | G -- Possibly nonexistent file name, defaulting to just directory name. |
fdb82f93 PJ |
85 | i -- Ignored, i.e. always nil. Does not do I/O. |
86 | k -- Key sequence (downcase the last event if needed to get a definition). | |
87 | K -- Key sequence to be redefined (do not downcase the last event). | |
88 | m -- Value of mark as number. Does not do I/O. | |
89 | M -- Any string. Inherits the current input method. | |
90 | n -- Number read using minibuffer. | |
425b457e | 91 | N -- Numeric prefix arg, or if none, do like code `n'. |
fdb82f93 PJ |
92 | p -- Prefix arg converted to number. Does not do I/O. |
93 | P -- Prefix arg in raw form. Does not do I/O. | |
94 | r -- Region: point and mark as 2 numeric args, smallest first. Does no I/O. | |
95 | s -- Any string. Does not inherit the current input method. | |
96 | S -- Any symbol. | |
39900c4e | 97 | U -- Mouse up event discarded by a previous k or K argument. |
fdb82f93 PJ |
98 | v -- Variable name: symbol that is user-variable-p. |
99 | x -- Lisp expression read but not evaluated. | |
100 | X -- Lisp expression read and evaluated. | |
101 | z -- Coding system. | |
102 | Z -- Coding system, nil if no prefix arg. | |
9bdb1538 CY |
103 | |
104 | In addition, if the string begins with `*', an error is signaled if | |
105 | the buffer is read-only. | |
106 | If the string begins with `@', Emacs searches the key sequence which | |
107 | invoked the command for its first mouse click (or any other event | |
108 | which specifies a window). | |
109 | If the string begins with `^' and `shift-select-mode' is non-nil, | |
2a4f8d3d | 110 | Emacs first calls the function `handle-shift-selection'. |
9bdb1538 CY |
111 | You may use `@', `*', and `^' together. They are processed in the |
112 | order that they appear, before reading any arguments. | |
d88bee5a | 113 | usage: (interactive &optional ARGS) */) |
5842a27b | 114 | (Lisp_Object args) |
ec28a64d MB |
115 | { |
116 | return Qnil; | |
117 | } | |
118 | ||
119 | /* Quotify EXP: if EXP is constant, return it. | |
120 | If EXP is not constant, return (quote EXP). */ | |
b1349114 | 121 | static Lisp_Object |
971de7fb | 122 | quotify_arg (register Lisp_Object exp) |
ec28a64d | 123 | { |
d032d5e7 SM |
124 | if (CONSP (exp) |
125 | || (SYMBOLP (exp) | |
126 | && !NILP (exp) && !EQ (exp, Qt))) | |
ec28a64d MB |
127 | return Fcons (Qquote, Fcons (exp, Qnil)); |
128 | ||
129 | return exp; | |
130 | } | |
131 | ||
132 | /* Modify EXP by quotifying each element (except the first). */ | |
b1349114 | 133 | static Lisp_Object |
971de7fb | 134 | quotify_args (Lisp_Object exp) |
ec28a64d MB |
135 | { |
136 | register Lisp_Object tail; | |
7539e11f KR |
137 | Lisp_Object next; |
138 | for (tail = exp; CONSP (tail); tail = next) | |
ec28a64d | 139 | { |
7539e11f | 140 | next = XCDR (tail); |
f3fbd155 | 141 | XSETCAR (tail, quotify_arg (XCAR (tail))); |
ec28a64d MB |
142 | } |
143 | return exp; | |
144 | } | |
145 | ||
648801d1 | 146 | static const char *callint_argfuns[] |
ec28a64d MB |
147 | = {"", "point", "mark", "region-beginning", "region-end"}; |
148 | ||
149 | static void | |
971de7fb | 150 | check_mark (int for_region) |
ec28a64d | 151 | { |
86c1cf23 | 152 | Lisp_Object tem; |
4b4deea2 | 153 | tem = Fmarker_buffer (BVAR (current_buffer, mark)); |
265a9e55 | 154 | if (NILP (tem) || (XBUFFER (tem) != current_buffer)) |
f203cf07 RS |
155 | error (for_region ? "The mark is not set now, so there is no region" |
156 | : "The mark is not set now"); | |
6497d2d8 | 157 | if (!NILP (Vtransient_mark_mode) && NILP (Vmark_even_if_inactive) |
4b4deea2 | 158 | && NILP (BVAR (current_buffer, mark_active))) |
f439241f | 159 | xsignal0 (Qmark_inactive); |
ec28a64d MB |
160 | } |
161 | ||
64ea14d3 RS |
162 | /* If the list of args INPUT was produced with an explicit call to |
163 | `list', look for elements that were computed with | |
164 | (region-beginning) or (region-end), and put those expressions into | |
165 | VALUES instead of the present values. | |
166 | ||
167 | This function doesn't return a value because it modifies elements | |
168 | of VALUES to do its job. */ | |
169 | ||
d1135afc | 170 | static void |
971de7fb | 171 | fix_command (Lisp_Object input, Lisp_Object values) |
d1135afc | 172 | { |
d032d5e7 | 173 | /* FIXME: Instead of this ugly hack, we should provide a way for an |
7200d79c SM |
174 | interactive spec to return an expression/function that will re-build the |
175 | args without user intervention. */ | |
d1135afc JB |
176 | if (CONSP (input)) |
177 | { | |
178 | Lisp_Object car; | |
179 | ||
180 | car = XCAR (input); | |
181 | /* Skip through certain special forms. */ | |
182 | while (EQ (car, Qlet) || EQ (car, Qletx) | |
183 | || EQ (car, Qsave_excursion) | |
184 | || EQ (car, Qprogn)) | |
185 | { | |
186 | while (CONSP (XCDR (input))) | |
187 | input = XCDR (input); | |
188 | input = XCAR (input); | |
189 | if (!CONSP (input)) | |
190 | break; | |
191 | car = XCAR (input); | |
192 | } | |
193 | if (EQ (car, Qlist)) | |
194 | { | |
195 | Lisp_Object intail, valtail; | |
196 | for (intail = Fcdr (input), valtail = values; | |
197 | CONSP (valtail); | |
5dc05618 | 198 | intail = Fcdr (intail), valtail = XCDR (valtail)) |
d1135afc JB |
199 | { |
200 | Lisp_Object elt; | |
201 | elt = Fcar (intail); | |
202 | if (CONSP (elt)) | |
203 | { | |
204 | Lisp_Object presflag, carelt; | |
205 | carelt = Fcar (elt); | |
206 | /* If it is (if X Y), look at Y. */ | |
207 | if (EQ (carelt, Qif) | |
208 | && EQ (Fnthcdr (make_number (3), elt), Qnil)) | |
209 | elt = Fnth (make_number (2), elt); | |
210 | /* If it is (when ... Y), look at Y. */ | |
211 | else if (EQ (carelt, Qwhen)) | |
212 | { | |
213 | while (CONSP (XCDR (elt))) | |
214 | elt = XCDR (elt); | |
215 | elt = Fcar (elt); | |
216 | } | |
217 | ||
218 | /* If the function call we're looking at | |
219 | is a special preserved one, copy the | |
220 | whole expression for this argument. */ | |
221 | if (CONSP (elt)) | |
222 | { | |
223 | presflag = Fmemq (Fcar (elt), preserved_fns); | |
224 | if (!NILP (presflag)) | |
225 | Fsetcar (valtail, Fcar (intail)); | |
226 | } | |
227 | } | |
228 | } | |
229 | } | |
230 | } | |
231 | } | |
ec28a64d | 232 | |
d455db8e | 233 | DEFUN ("call-interactively", Fcall_interactively, Scall_interactively, 1, 3, 0, |
fdb82f93 PJ |
234 | doc: /* Call FUNCTION, reading args according to its interactive calling specs. |
235 | Return the value FUNCTION returns. | |
236 | The function contains a specification of how to do the argument reading. | |
237 | In the case of user-defined functions, this is specified by placing a call | |
238 | to the function `interactive' at the top level of the function body. | |
239 | See `interactive'. | |
240 | ||
241 | Optional second arg RECORD-FLAG non-nil | |
242 | means unconditionally put this command in the command-history. | |
243 | Otherwise, this is done only if an arg is read using the minibuffer. | |
2a95a27c | 244 | |
fdb82f93 | 245 | Optional third arg KEYS, if given, specifies the sequence of events to |
2a95a27c CY |
246 | supply, as a vector, if the command inquires which events were used to |
247 | invoke it. If KEYS is omitted or nil, the return value of | |
248 | `this-command-keys-vector' is used. */) | |
5842a27b | 249 | (Lisp_Object function, Lisp_Object record_flag, Lisp_Object keys) |
ec28a64d MB |
250 | { |
251 | Lisp_Object *args, *visargs; | |
ec28a64d | 252 | Lisp_Object specs; |
079e479f | 253 | Lisp_Object filter_specs; |
ec28a64d | 254 | Lisp_Object teml; |
39900c4e | 255 | Lisp_Object up_event; |
52614803 | 256 | Lisp_Object enable; |
aed13378 | 257 | int speccount = SPECPDL_INDEX (); |
ec28a64d | 258 | |
bc78232c JB |
259 | /* The index of the next element of this_command_keys to examine for |
260 | the 'e' interactive code. */ | |
dbc4e1c1 | 261 | int next_event; |
bc78232c | 262 | |
ec28a64d | 263 | Lisp_Object prefix_arg; |
a2db9982 | 264 | char *string; |
b0e80955 | 265 | const char *tem; |
63007de2 JB |
266 | |
267 | /* If varies[i] > 0, the i'th argument shouldn't just have its value | |
268 | in this call quoted in the command history. It should be | |
269 | recorded as a call to the function named callint_argfuns[varies[i]]. */ | |
ec28a64d | 270 | int *varies; |
63007de2 | 271 | |
becfa255 PE |
272 | register size_t i; |
273 | size_t nargs; | |
c5101a77 | 274 | int foo; |
ec28a64d MB |
275 | char prompt1[100]; |
276 | char *tem1; | |
277 | int arg_from_tty = 0; | |
39900c4e | 278 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; |
d455db8e | 279 | int 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; | |
287 | save_real_this_command = real_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); |
d455db8e RS |
295 | key_count = XVECTOR (keys)->size; |
296 | } | |
ec28a64d | 297 | |
e5d77022 | 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 | |
39900c4e KS |
313 | /* If k or K discard an up-event, save it here so it can be retrieved with U */ |
314 | up_event = Qnil; | |
315 | ||
ccb5c14f | 316 | /* Set SPECS to the interactive form, or barf if not interactive. */ |
023accd6 SM |
317 | { |
318 | Lisp_Object form; | |
319 | GCPRO2 (function, prefix_arg); | |
320 | form = Finteractive_form (function); | |
321 | UNGCPRO; | |
322 | if (CONSP (form)) | |
323 | specs = filter_specs = Fcar (XCDR (form)); | |
324 | else | |
325 | wrong_type_argument (Qcommandp, function); | |
326 | } | |
ec28a64d | 327 | |
ccb5c14f | 328 | /* If SPECS is set to a string, use it as an interactive prompt. */ |
6e54b3de | 329 | if (STRINGP (specs)) |
46947372 JB |
330 | { |
331 | /* Make a copy of string so that if a GC relocates specs, | |
332 | `string' will still be valid. */ | |
a2db9982 PE |
333 | string = (char *) alloca (SBYTES (specs) + 1); |
334 | memcpy (string, SSDATA (specs), SBYTES (specs) + 1); | |
46947372 | 335 | } |
023accd6 | 336 | else |
ec28a64d | 337 | { |
03e130d5 | 338 | Lisp_Object input; |
d032d5e7 | 339 | Lisp_Object funval = Findirect_function (function, Qt); |
91a6ba78 | 340 | i = num_input_events; |
03e130d5 RS |
341 | input = specs; |
342 | /* Compute the arg values using the user's expression. */ | |
079e479f | 343 | GCPRO2 (input, filter_specs); |
d032d5e7 SM |
344 | specs = Feval (specs, |
345 | CONSP (funval) && EQ (Qclosure, XCAR (funval)) | |
346 | ? Qt : Qnil); | |
079e479f | 347 | UNGCPRO; |
91a6ba78 | 348 | if (i != num_input_events || !NILP (record_flag)) |
03e130d5 RS |
349 | { |
350 | /* We should record this command on the command history. */ | |
f1321dc3 | 351 | Lisp_Object values; |
d65859c3 | 352 | Lisp_Object this_cmd; |
03e130d5 RS |
353 | /* Make a copy of the list of values, for the command history, |
354 | and turn them into things we can eval. */ | |
355 | values = quotify_args (Fcopy_sequence (specs)); | |
120d0a23 | 356 | fix_command (input, values); |
d65859c3 DN |
357 | this_cmd = Fcons (function, values); |
358 | if (history_delete_duplicates) | |
359 | Vcommand_history = Fdelete (this_cmd, Vcommand_history); | |
360 | Vcommand_history = Fcons (this_cmd, Vcommand_history); | |
225c2157 RS |
361 | |
362 | /* Don't keep command history around forever. */ | |
b9f0b172 | 363 | if (INTEGERP (Vhistory_length) && XINT (Vhistory_length) > 0) |
225c2157 RS |
364 | { |
365 | teml = Fnthcdr (Vhistory_length, Vcommand_history); | |
366 | if (CONSP (teml)) | |
f3fbd155 | 367 | XSETCDR (teml, Qnil); |
225c2157 | 368 | } |
03e130d5 | 369 | } |
0605dd79 RS |
370 | |
371 | Vthis_command = save_this_command; | |
372 | Vthis_original_command = save_this_original_command; | |
373 | real_this_command= save_real_this_command; | |
1344aad4 | 374 | KVAR (current_kboard, Vlast_command) = save_last_command; |
0605dd79 | 375 | |
256c9c3a KL |
376 | temporarily_switch_to_single_kboard (NULL); |
377 | return unbind_to (speccount, apply1 (function, specs)); | |
ec28a64d MB |
378 | } |
379 | ||
380 | /* Here if function specifies a string to control parsing the defaults */ | |
381 | ||
dbc4e1c1 | 382 | /* Set next_event to point to the first event with parameters. */ |
d455db8e | 383 | for (next_event = 0; next_event < key_count; next_event++) |
1b511542 | 384 | if (EVENT_HAS_PARAMETERS (AREF (keys, next_event))) |
dbc4e1c1 | 385 | break; |
09c886dc | 386 | |
42bb2790 | 387 | /* Handle special starting chars `*' and `@'. Also `-'. */ |
e92d107b | 388 | /* Note that `+' is reserved for user extensions. */ |
ec28a64d MB |
389 | while (1) |
390 | { | |
fb775602 | 391 | if (*string == '+') |
e92d107b RS |
392 | error ("`+' is not used in `interactive' for ordinary commands"); |
393 | else if (*string == '*') | |
ec28a64d MB |
394 | { |
395 | string++; | |
4b4deea2 | 396 | if (!NILP (BVAR (current_buffer, read_only))) |
09c886dc RS |
397 | { |
398 | if (!NILP (record_flag)) | |
399 | { | |
a2db9982 | 400 | char *p = string; |
09c886dc RS |
401 | while (*p) |
402 | { | |
403 | if (! (*p == 'r' || *p == 'p' || *p == 'P' | |
404 | || *p == '\n')) | |
405 | Fbarf_if_buffer_read_only (); | |
406 | p++; | |
407 | } | |
408 | record_then_fail = 1; | |
409 | } | |
410 | else | |
411 | Fbarf_if_buffer_read_only (); | |
412 | } | |
ec28a64d | 413 | } |
42bb2790 RS |
414 | /* Ignore this for semi-compatibility with Lucid. */ |
415 | else if (*string == '-') | |
416 | string++; | |
ec28a64d MB |
417 | else if (*string == '@') |
418 | { | |
a3e8cbda | 419 | Lisp_Object event, w; |
dbc4e1c1 | 420 | |
170d3006 | 421 | event = (next_event < key_count |
1b511542 | 422 | ? AREF (keys, next_event) |
170d3006 | 423 | : Qnil); |
dbc4e1c1 | 424 | if (EVENT_HAS_PARAMETERS (event) |
a3e8cbda PE |
425 | && (w = XCDR (event), CONSP (w)) |
426 | && (w = XCAR (w), CONSP (w)) | |
427 | && (w = XCAR (w), WINDOWP (w))) | |
d1fa2e8a | 428 | { |
a3e8cbda PE |
429 | if (MINI_WINDOW_P (XWINDOW (w)) |
430 | && ! (minibuf_level > 0 && EQ (w, minibuf_window))) | |
d1fa2e8a | 431 | error ("Attempt to select inactive minibuffer window"); |
ef2515c0 RS |
432 | |
433 | /* If the current buffer wants to clean up, let it. */ | |
dee091a3 | 434 | Frun_hooks (1, &Qmouse_leave_buffer_hook); |
ef2515c0 | 435 | |
a3e8cbda | 436 | Fselect_window (w, Qnil); |
d1fa2e8a | 437 | } |
ec28a64d | 438 | string++; |
ec28a64d | 439 | } |
9bdb1538 CY |
440 | else if (*string == '^') |
441 | { | |
84db11d6 | 442 | call0 (Qhandle_shift_selection); |
9bdb1538 CY |
443 | string++; |
444 | } | |
ec28a64d MB |
445 | else break; |
446 | } | |
447 | ||
becfa255 PE |
448 | /* Count the number of arguments, which is one plus the number of arguments |
449 | the interactive spec would have us give to the function. */ | |
ec28a64d | 450 | tem = string; |
becfa255 | 451 | for (nargs = 1; *tem; ) |
ec28a64d MB |
452 | { |
453 | /* 'r' specifications ("point and mark as 2 numeric args") | |
454 | produce *two* arguments. */ | |
e4305426 | 455 | if (*tem == 'r') |
becfa255 | 456 | nargs += 2; |
e4305426 | 457 | else |
becfa255 | 458 | nargs++; |
a2db9982 | 459 | tem = strchr (tem, '\n'); |
ec28a64d | 460 | if (tem) |
e4305426 | 461 | ++tem; |
ec28a64d | 462 | else |
e4305426 | 463 | break; |
ec28a64d | 464 | } |
ec28a64d | 465 | |
becfa255 PE |
466 | args = (Lisp_Object *) alloca (nargs * sizeof (Lisp_Object)); |
467 | visargs = (Lisp_Object *) alloca (nargs * sizeof (Lisp_Object)); | |
468 | varies = (int *) alloca (nargs * sizeof (int)); | |
ec28a64d | 469 | |
becfa255 | 470 | for (i = 0; i < nargs; i++) |
ec28a64d MB |
471 | { |
472 | args[i] = Qnil; | |
473 | visargs[i] = Qnil; | |
474 | varies[i] = 0; | |
475 | } | |
476 | ||
39900c4e | 477 | GCPRO5 (prefix_arg, function, *args, *visargs, up_event); |
becfa255 PE |
478 | gcpro3.nvars = nargs; |
479 | gcpro4.nvars = nargs; | |
ec28a64d | 480 | |
52614803 RS |
481 | if (!NILP (enable)) |
482 | specbind (Qenable_recursive_minibuffers, Qt); | |
483 | ||
ec28a64d | 484 | tem = string; |
6bc1abf2 | 485 | for (i = 1; *tem; i++) |
ec28a64d MB |
486 | { |
487 | strncpy (prompt1, tem + 1, sizeof prompt1 - 1); | |
488 | prompt1[sizeof prompt1 - 1] = 0; | |
8966b757 | 489 | tem1 = strchr (prompt1, '\n'); |
ec28a64d | 490 | if (tem1) *tem1 = 0; |
55b41ef5 CY |
491 | |
492 | visargs[0] = build_string (prompt1); | |
8966b757 | 493 | if (strchr (prompt1, '%')) |
55b41ef5 CY |
494 | callint_message = Fformat (i, visargs); |
495 | else | |
496 | callint_message = visargs[0]; | |
ec28a64d MB |
497 | |
498 | switch (*tem) | |
499 | { | |
500 | case 'a': /* Symbol defined as a function */ | |
55b41ef5 | 501 | visargs[i] = Fcompleting_read (callint_message, |
ff9cd111 | 502 | Vobarray, Qfboundp, Qt, |
93fb51ae | 503 | Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
504 | /* Passing args[i] directly stimulates compiler bug */ |
505 | teml = visargs[i]; | |
506 | args[i] = Fintern (teml, Qnil); | |
507 | break; | |
508 | ||
509 | case 'b': /* Name of existing buffer */ | |
f03f8f2c JL |
510 | args[i] = Fcurrent_buffer (); |
511 | if (EQ (selected_window, minibuf_window)) | |
512 | args[i] = Fother_buffer (args[i], Qnil, Qnil); | |
513 | args[i] = Fread_buffer (callint_message, args[i], Qt); | |
514 | break; | |
515 | ||
ec28a64d | 516 | case 'B': /* Name of buffer, possibly nonexistent */ |
f03f8f2c JL |
517 | args[i] = Fread_buffer (callint_message, |
518 | Fother_buffer (Fcurrent_buffer (), Qnil, Qnil), | |
519 | Qnil); | |
ec28a64d MB |
520 | break; |
521 | ||
522 | case 'c': /* Character */ | |
54b33868 MR |
523 | /* Prompt in `minibuffer-prompt' face. */ |
524 | Fput_text_property (make_number (0), | |
525 | make_number (SCHARS (callint_message)), | |
526 | Qface, Qminibuffer_prompt, callint_message); | |
55b41ef5 | 527 | args[i] = Fread_char (callint_message, Qnil, Qnil); |
453ed650 | 528 | message1_nolog ((char *) 0); |
ec28a64d MB |
529 | /* Passing args[i] directly stimulates compiler bug */ |
530 | teml = args[i]; | |
531 | visargs[i] = Fchar_to_string (teml); | |
532 | break; | |
533 | ||
534 | case 'C': /* Command: symbol with interactive function */ | |
55b41ef5 | 535 | visargs[i] = Fcompleting_read (callint_message, |
ff9cd111 | 536 | Vobarray, Qcommandp, |
93fb51ae | 537 | Qt, Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
538 | /* Passing args[i] directly stimulates compiler bug */ |
539 | teml = visargs[i]; | |
540 | args[i] = Fintern (teml, Qnil); | |
541 | break; | |
542 | ||
543 | case 'd': /* Value of point. Does not do I/O. */ | |
dc330139 | 544 | set_marker_both (point_marker, Qnil, PT, PT_BYTE); |
824977b6 | 545 | args[i] = point_marker; |
ec28a64d MB |
546 | /* visargs[i] = Qnil; */ |
547 | varies[i] = 1; | |
548 | break; | |
549 | ||
ec28a64d | 550 | case 'D': /* Directory name. */ |
55b41ef5 | 551 | args[i] = Fread_file_name (callint_message, Qnil, |
4b4deea2 | 552 | BVAR (current_buffer, directory), Qlambda, Qnil, |
93ed5f9d | 553 | Qfile_directory_p); |
ec28a64d MB |
554 | break; |
555 | ||
556 | case 'f': /* Existing file name. */ | |
55b41ef5 | 557 | args[i] = Fread_file_name (callint_message, |
93ed5f9d | 558 | Qnil, Qnil, Qlambda, Qnil, Qnil); |
ec28a64d MB |
559 | break; |
560 | ||
561 | case 'F': /* Possibly nonexistent file name. */ | |
55b41ef5 | 562 | args[i] = Fread_file_name (callint_message, |
93ed5f9d | 563 | Qnil, Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
564 | break; |
565 | ||
75f9fbe8 RS |
566 | case 'G': /* Possibly nonexistent file name, |
567 | default to directory alone. */ | |
55b41ef5 | 568 | args[i] = Fread_file_name (callint_message, |
977f6cfb | 569 | Qnil, Qnil, Qnil, empty_unibyte_string, Qnil); |
75f9fbe8 RS |
570 | break; |
571 | ||
40b2421c KH |
572 | case 'i': /* Ignore an argument -- Does not do I/O */ |
573 | varies[i] = -1; | |
574 | break; | |
575 | ||
1989e7bc | 576 | case 'k': /* Key sequence. */ |
c631c234 | 577 | { |
aed13378 | 578 | int speccount1 = SPECPDL_INDEX (); |
c631c234 | 579 | specbind (Qcursor_in_echo_area, Qt); |
54b33868 MR |
580 | /* Prompt in `minibuffer-prompt' face. */ |
581 | Fput_text_property (make_number (0), | |
582 | make_number (SCHARS (callint_message)), | |
583 | Qface, Qminibuffer_prompt, callint_message); | |
55b41ef5 | 584 | args[i] = Fread_key_sequence (callint_message, |
ad4ac475 | 585 | Qnil, Qnil, Qnil, Qnil); |
c631c234 RS |
586 | unbind_to (speccount1, Qnil); |
587 | teml = args[i]; | |
a1bfe073 | 588 | visargs[i] = Fkey_description (teml, Qnil); |
cdfac812 RS |
589 | |
590 | /* If the key sequence ends with a down-event, | |
591 | discard the following up-event. */ | |
592 | teml = Faref (args[i], make_number (XINT (Flength (args[i])) - 1)); | |
593 | if (CONSP (teml)) | |
70949dac | 594 | teml = XCAR (teml); |
cdfac812 RS |
595 | if (SYMBOLP (teml)) |
596 | { | |
597 | Lisp_Object tem2; | |
598 | ||
599 | teml = Fget (teml, intern ("event-symbol-elements")); | |
4b27f17c AS |
600 | /* Ignore first element, which is the base key. */ |
601 | tem2 = Fmemq (intern ("down"), Fcdr (teml)); | |
cdfac812 | 602 | if (! NILP (tem2)) |
43811b4e | 603 | up_event = Fread_event (Qnil, Qnil, Qnil); |
cdfac812 | 604 | } |
c631c234 | 605 | } |
1989e7bc RS |
606 | break; |
607 | ||
608 | case 'K': /* Key sequence to be defined. */ | |
c631c234 | 609 | { |
aed13378 | 610 | int speccount1 = SPECPDL_INDEX (); |
c631c234 | 611 | specbind (Qcursor_in_echo_area, Qt); |
54b33868 MR |
612 | /* Prompt in `minibuffer-prompt' face. */ |
613 | Fput_text_property (make_number (0), | |
614 | make_number (SCHARS (callint_message)), | |
615 | Qface, Qminibuffer_prompt, callint_message); | |
55b41ef5 | 616 | args[i] = Fread_key_sequence (callint_message, |
ad4ac475 | 617 | Qnil, Qt, Qnil, Qnil); |
c631c234 | 618 | teml = args[i]; |
a1bfe073 | 619 | visargs[i] = Fkey_description (teml, Qnil); |
c631c234 | 620 | unbind_to (speccount1, Qnil); |
cdfac812 RS |
621 | |
622 | /* If the key sequence ends with a down-event, | |
623 | discard the following up-event. */ | |
624 | teml = Faref (args[i], make_number (XINT (Flength (args[i])) - 1)); | |
625 | if (CONSP (teml)) | |
70949dac | 626 | teml = XCAR (teml); |
cdfac812 RS |
627 | if (SYMBOLP (teml)) |
628 | { | |
629 | Lisp_Object tem2; | |
630 | ||
631 | teml = Fget (teml, intern ("event-symbol-elements")); | |
4b27f17c AS |
632 | /* Ignore first element, which is the base key. */ |
633 | tem2 = Fmemq (intern ("down"), Fcdr (teml)); | |
cdfac812 | 634 | if (! NILP (tem2)) |
43811b4e | 635 | up_event = Fread_event (Qnil, Qnil, Qnil); |
cdfac812 | 636 | } |
c631c234 | 637 | } |
ec28a64d MB |
638 | break; |
639 | ||
39900c4e KS |
640 | case 'U': /* Up event from last k or K */ |
641 | if (!NILP (up_event)) | |
642 | { | |
643 | args[i] = Fmake_vector (make_number (1), up_event); | |
644 | up_event = Qnil; | |
645 | teml = args[i]; | |
646 | visargs[i] = Fkey_description (teml, Qnil); | |
647 | } | |
648 | break; | |
649 | ||
bc78232c | 650 | case 'e': /* The invoking event. */ |
d455db8e | 651 | if (next_event >= key_count) |
bc78232c | 652 | error ("%s must be bound to an event with parameters", |
6e54b3de | 653 | (SYMBOLP (function) |
51b59d79 | 654 | ? SSDATA (SYMBOL_NAME (function)) |
bc78232c | 655 | : "command")); |
1b511542 SM |
656 | args[i] = AREF (keys, next_event); |
657 | next_event++; | |
e5d77022 | 658 | varies[i] = -1; |
dbc4e1c1 JB |
659 | |
660 | /* Find the next parameterized event. */ | |
d455db8e | 661 | while (next_event < key_count |
1b511542 | 662 | && !(EVENT_HAS_PARAMETERS (AREF (keys, next_event)))) |
dbc4e1c1 JB |
663 | next_event++; |
664 | ||
63007de2 JB |
665 | break; |
666 | ||
ec28a64d | 667 | case 'm': /* Value of mark. Does not do I/O. */ |
f203cf07 | 668 | check_mark (0); |
ec28a64d | 669 | /* visargs[i] = Qnil; */ |
4b4deea2 | 670 | args[i] = BVAR (current_buffer, mark); |
ec28a64d MB |
671 | varies[i] = 2; |
672 | break; | |
673 | ||
93fb51ae KH |
674 | case 'M': /* String read via minibuffer with |
675 | inheriting the current input method. */ | |
55b41ef5 | 676 | args[i] = Fread_string (callint_message, |
93fb51ae KH |
677 | Qnil, Qnil, Qnil, Qt); |
678 | break; | |
679 | ||
425b457e | 680 | case 'N': /* Prefix arg as number, else number from minibuffer */ |
265a9e55 | 681 | if (!NILP (prefix_arg)) |
ec28a64d MB |
682 | goto have_prefix_arg; |
683 | case 'n': /* Read number from minibuffer. */ | |
f0490a0b RS |
684 | { |
685 | int first = 1; | |
686 | do | |
687 | { | |
a3e8cbda | 688 | Lisp_Object str; |
e7c4e229 | 689 | if (! first) |
f0490a0b RS |
690 | { |
691 | message ("Please enter a number."); | |
e7c4e229 | 692 | sit_for (make_number (1), 0, 0); |
f0490a0b RS |
693 | } |
694 | first = 0; | |
695 | ||
a3e8cbda | 696 | str = Fread_from_minibuffer (callint_message, |
93fb51ae | 697 | Qnil, Qnil, Qnil, Qnil, Qnil, |
ae4c2a3b | 698 | Qnil); |
a3e8cbda | 699 | if (! STRINGP (str) || SCHARS (str) == 0) |
f0490a0b RS |
700 | args[i] = Qnil; |
701 | else | |
a3e8cbda | 702 | args[i] = Fread (str); |
f0490a0b RS |
703 | } |
704 | while (! NUMBERP (args[i])); | |
705 | } | |
55b41ef5 | 706 | visargs[i] = args[i]; |
ec28a64d MB |
707 | break; |
708 | ||
709 | case 'P': /* Prefix arg in raw form. Does no I/O. */ | |
ec28a64d MB |
710 | args[i] = prefix_arg; |
711 | /* visargs[i] = Qnil; */ | |
712 | varies[i] = -1; | |
713 | break; | |
714 | ||
715 | case 'p': /* Prefix arg converted to number. No I/O. */ | |
71eda2d5 | 716 | have_prefix_arg: |
ec28a64d MB |
717 | args[i] = Fprefix_numeric_value (prefix_arg); |
718 | /* visargs[i] = Qnil; */ | |
719 | varies[i] = -1; | |
720 | break; | |
721 | ||
722 | case 'r': /* Region, point and mark as 2 args. */ | |
f203cf07 | 723 | check_mark (1); |
dc330139 | 724 | set_marker_both (point_marker, Qnil, PT, PT_BYTE); |
ec28a64d | 725 | /* visargs[i+1] = Qnil; */ |
4b4deea2 | 726 | foo = marker_position (BVAR (current_buffer, mark)); |
ec28a64d | 727 | /* visargs[i] = Qnil; */ |
4b4deea2 | 728 | args[i] = PT < foo ? point_marker : BVAR (current_buffer, mark); |
ec28a64d | 729 | varies[i] = 3; |
4b4deea2 | 730 | args[++i] = PT > foo ? point_marker : BVAR (current_buffer, mark); |
ec28a64d MB |
731 | varies[i] = 4; |
732 | break; | |
733 | ||
93fb51ae KH |
734 | case 's': /* String read via minibuffer without |
735 | inheriting the current input method. */ | |
55b41ef5 | 736 | args[i] = Fread_string (callint_message, |
93fb51ae | 737 | Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
738 | break; |
739 | ||
740 | case 'S': /* Any symbol. */ | |
55b41ef5 | 741 | visargs[i] = Fread_string (callint_message, |
93fb51ae | 742 | Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
743 | /* Passing args[i] directly stimulates compiler bug */ |
744 | teml = visargs[i]; | |
745 | args[i] = Fintern (teml, Qnil); | |
746 | break; | |
747 | ||
748 | case 'v': /* Variable name: symbol that is | |
749 | user-variable-p. */ | |
55b41ef5 | 750 | args[i] = Fread_variable (callint_message, Qnil); |
ec28a64d MB |
751 | visargs[i] = last_minibuf_string; |
752 | break; | |
753 | ||
754 | case 'x': /* Lisp expression read but not evaluated */ | |
55b41ef5 | 755 | args[i] = Fread_minibuffer (callint_message, Qnil); |
ec28a64d MB |
756 | visargs[i] = last_minibuf_string; |
757 | break; | |
758 | ||
759 | case 'X': /* Lisp expression read and evaluated */ | |
55b41ef5 | 760 | args[i] = Feval_minibuffer (callint_message, Qnil); |
ec28a64d MB |
761 | visargs[i] = last_minibuf_string; |
762 | break; | |
763 | ||
40b2421c KH |
764 | case 'Z': /* Coding-system symbol, or ignore the |
765 | argument if no prefix */ | |
766 | if (NILP (prefix_arg)) | |
767 | { | |
768 | args[i] = Qnil; | |
769 | varies[i] = -1; | |
770 | } | |
177c0ea7 | 771 | else |
40b2421c KH |
772 | { |
773 | args[i] | |
55b41ef5 | 774 | = Fread_non_nil_coding_system (callint_message); |
40b2421c KH |
775 | visargs[i] = last_minibuf_string; |
776 | } | |
777 | break; | |
778 | ||
779 | case 'z': /* Coding-system symbol or nil */ | |
55b41ef5 | 780 | args[i] = Fread_coding_system (callint_message, Qnil); |
40b2421c KH |
781 | visargs[i] = last_minibuf_string; |
782 | break; | |
783 | ||
e92d107b RS |
784 | /* We have a case for `+' so we get an error |
785 | if anyone tries to define one here. */ | |
786 | case '+': | |
ec28a64d | 787 | default: |
e92d107b | 788 | error ("Invalid control letter `%c' (%03o) in interactive calling string", |
a2db9982 | 789 | *tem, (unsigned char) *tem); |
ec28a64d MB |
790 | } |
791 | ||
792 | if (varies[i] == 0) | |
793 | arg_from_tty = 1; | |
794 | ||
6e54b3de | 795 | if (NILP (visargs[i]) && STRINGP (args[i])) |
ec28a64d MB |
796 | visargs[i] = args[i]; |
797 | ||
a2db9982 | 798 | tem = strchr (tem, '\n'); |
ec28a64d | 799 | if (tem) tem++; |
a2db9982 | 800 | else tem = ""; |
ec28a64d | 801 | } |
52614803 | 802 | unbind_to (speccount, Qnil); |
ec28a64d MB |
803 | |
804 | QUIT; | |
805 | ||
806 | args[0] = function; | |
807 | ||
7868a977 | 808 | if (arg_from_tty || !NILP (record_flag)) |
ec28a64d MB |
809 | { |
810 | visargs[0] = function; | |
becfa255 | 811 | for (i = 1; i < nargs; i++) |
824977b6 RS |
812 | { |
813 | if (varies[i] > 0) | |
814 | visargs[i] = Fcons (intern (callint_argfuns[varies[i]]), Qnil); | |
815 | else | |
816 | visargs[i] = quotify_arg (args[i]); | |
817 | } | |
becfa255 | 818 | Vcommand_history = Fcons (Flist (nargs, visargs), |
ec28a64d | 819 | Vcommand_history); |
225c2157 | 820 | /* Don't keep command history around forever. */ |
b9f0b172 | 821 | if (INTEGERP (Vhistory_length) && XINT (Vhistory_length) > 0) |
225c2157 RS |
822 | { |
823 | teml = Fnthcdr (Vhistory_length, Vcommand_history); | |
824 | if (CONSP (teml)) | |
f3fbd155 | 825 | XSETCDR (teml, Qnil); |
225c2157 | 826 | } |
ec28a64d MB |
827 | } |
828 | ||
824977b6 RS |
829 | /* If we used a marker to hold point, mark, or an end of the region, |
830 | temporarily, convert it to an integer now. */ | |
becfa255 | 831 | for (i = 1; i < nargs; i++) |
824977b6 RS |
832 | if (varies[i] >= 1 && varies[i] <= 4) |
833 | XSETINT (args[i], marker_position (args[i])); | |
834 | ||
09c886dc RS |
835 | if (record_then_fail) |
836 | Fbarf_if_buffer_read_only (); | |
837 | ||
0605dd79 RS |
838 | Vthis_command = save_this_command; |
839 | Vthis_original_command = save_this_original_command; | |
840 | real_this_command= save_real_this_command; | |
1344aad4 | 841 | KVAR (current_kboard, Vlast_command) = save_last_command; |
0605dd79 | 842 | |
ec28a64d MB |
843 | { |
844 | Lisp_Object val; | |
ec28a64d MB |
845 | specbind (Qcommand_debug_status, Qnil); |
846 | ||
b3e6f69c | 847 | temporarily_switch_to_single_kboard (NULL); |
becfa255 | 848 | val = Ffuncall (nargs, args); |
ec28a64d MB |
849 | UNGCPRO; |
850 | return unbind_to (speccount, val); | |
851 | } | |
177c0ea7 | 852 | } |
ec28a64d | 853 | |
16a97296 | 854 | DEFUE ("prefix-numeric-value", Fprefix_numeric_value, Sprefix_numeric_value, |
fdb82f93 PJ |
855 | 1, 1, 0, |
856 | doc: /* Return numeric meaning of raw prefix argument RAW. | |
857 | A raw prefix argument is what you get from `(interactive "P")'. | |
858 | Its numeric meaning is what you would get from `(interactive "p")'. */) | |
5842a27b | 859 | (Lisp_Object raw) |
ec28a64d MB |
860 | { |
861 | Lisp_Object val; | |
177c0ea7 | 862 | |
265a9e55 | 863 | if (NILP (raw)) |
acab6442 | 864 | XSETFASTINT (val, 1); |
fd5285f3 | 865 | else if (EQ (raw, Qminus)) |
ec28a64d | 866 | XSETINT (val, -1); |
70949dac KR |
867 | else if (CONSP (raw) && INTEGERP (XCAR (raw))) |
868 | XSETINT (val, XINT (XCAR (raw))); | |
6e54b3de | 869 | else if (INTEGERP (raw)) |
ec28a64d MB |
870 | val = raw; |
871 | else | |
acab6442 | 872 | XSETFASTINT (val, 1); |
ec28a64d MB |
873 | |
874 | return val; | |
875 | } | |
876 | ||
dfcf069d | 877 | void |
971de7fb | 878 | syms_of_callint (void) |
ec28a64d | 879 | { |
824977b6 RS |
880 | point_marker = Fmake_marker (); |
881 | staticpro (&point_marker); | |
882 | ||
55b41ef5 CY |
883 | callint_message = Qnil; |
884 | staticpro (&callint_message); | |
885 | ||
d67b4f80 DN |
886 | preserved_fns = pure_cons (intern_c_string ("region-beginning"), |
887 | pure_cons (intern_c_string ("region-end"), | |
888 | pure_cons (intern_c_string ("point"), | |
889 | pure_cons (intern_c_string ("mark"), Qnil)))); | |
03e130d5 | 890 | |
d67b4f80 | 891 | Qlist = intern_c_string ("list"); |
03e130d5 | 892 | staticpro (&Qlist); |
d67b4f80 | 893 | Qlet = intern_c_string ("let"); |
8450690a | 894 | staticpro (&Qlet); |
d67b4f80 | 895 | Qif = intern_c_string ("if"); |
120d0a23 | 896 | staticpro (&Qif); |
d67b4f80 | 897 | Qwhen = intern_c_string ("when"); |
120d0a23 | 898 | staticpro (&Qwhen); |
d67b4f80 | 899 | Qletx = intern_c_string ("let*"); |
8450690a | 900 | staticpro (&Qletx); |
d67b4f80 | 901 | Qsave_excursion = intern_c_string ("save-excursion"); |
8450690a | 902 | staticpro (&Qsave_excursion); |
d67b4f80 | 903 | Qprogn = intern_c_string ("progn"); |
079e479f | 904 | staticpro (&Qprogn); |
03e130d5 | 905 | |
d67b4f80 | 906 | Qminus = intern_c_string ("-"); |
ec28a64d MB |
907 | staticpro (&Qminus); |
908 | ||
d67b4f80 | 909 | Qplus = intern_c_string ("+"); |
fdb4a38c RS |
910 | staticpro (&Qplus); |
911 | ||
d67b4f80 | 912 | Qhandle_shift_selection = intern_c_string ("handle-shift-selection"); |
9bdb1538 CY |
913 | staticpro (&Qhandle_shift_selection); |
914 | ||
d67b4f80 | 915 | Qcall_interactively = intern_c_string ("call-interactively"); |
ec28a64d MB |
916 | staticpro (&Qcall_interactively); |
917 | ||
d67b4f80 | 918 | Qcommand_debug_status = intern_c_string ("command-debug-status"); |
ec28a64d MB |
919 | staticpro (&Qcommand_debug_status); |
920 | ||
d67b4f80 | 921 | Qenable_recursive_minibuffers = intern_c_string ("enable-recursive-minibuffers"); |
52614803 RS |
922 | staticpro (&Qenable_recursive_minibuffers); |
923 | ||
d67b4f80 | 924 | Qmouse_leave_buffer_hook = intern_c_string ("mouse-leave-buffer-hook"); |
ef2515c0 RS |
925 | staticpro (&Qmouse_leave_buffer_hook); |
926 | ||
1e0c5826 | 927 | DEFVAR_KBOARD ("prefix-arg", Vprefix_arg, |
fdb82f93 PJ |
928 | doc: /* The value of the prefix argument for the next editing command. |
929 | It may be a number, or the symbol `-' for just a minus sign as arg, | |
930 | or a list whose car is a number for just one or more C-u's | |
931 | or nil if no argument has been specified. | |
932 | ||
933 | You cannot examine this variable to find the argument for this command | |
934 | since it has been set to nil by the time you can look. | |
935 | Instead, you should use the variable `current-prefix-arg', although | |
936 | normally commands can get this prefix argument with (interactive "P"). */); | |
8c917bf2 | 937 | |
fe3fbdcc | 938 | DEFVAR_KBOARD ("last-prefix-arg", Vlast_prefix_arg, |
fdb82f93 PJ |
939 | doc: /* The value of the prefix argument for the previous editing command. |
940 | See `prefix-arg' for the meaning of the value. */); | |
fe3fbdcc | 941 | |
29208e82 | 942 | DEFVAR_LISP ("current-prefix-arg", Vcurrent_prefix_arg, |
fdb82f93 PJ |
943 | doc: /* The value of the prefix argument for this editing command. |
944 | It may be a number, or the symbol `-' for just a minus sign as arg, | |
945 | or a list whose car is a number for just one or more C-u's | |
946 | or nil if no argument has been specified. | |
947 | This is what `(interactive \"P\")' returns. */); | |
8c917bf2 KH |
948 | Vcurrent_prefix_arg = Qnil; |
949 | ||
29208e82 | 950 | DEFVAR_LISP ("command-history", Vcommand_history, |
fdb82f93 | 951 | doc: /* List of recent commands that read arguments from terminal. |
b014713c EZ |
952 | Each command is represented as a form to evaluate. |
953 | ||
954 | Maximum length of the history list is determined by the value | |
955 | of `history-length', which see. */); | |
ec28a64d MB |
956 | Vcommand_history = Qnil; |
957 | ||
29208e82 | 958 | DEFVAR_LISP ("command-debug-status", Vcommand_debug_status, |
fdb82f93 PJ |
959 | doc: /* Debugging status of current interactive command. |
960 | Bound each time `call-interactively' is called; | |
961 | may be set by the debugger as a reminder for itself. */); | |
ec28a64d MB |
962 | Vcommand_debug_status = Qnil; |
963 | ||
29208e82 | 964 | DEFVAR_LISP ("mark-even-if-inactive", Vmark_even_if_inactive, |
fdb82f93 PJ |
965 | doc: /* *Non-nil means you can use the mark even when inactive. |
966 | This option makes a difference in Transient Mark mode. | |
967 | When the option is non-nil, deactivation of the mark | |
968 | turns off region highlighting, but commands that use the mark | |
969 | behave as if the mark were still active. */); | |
a2b84f35 | 970 | Vmark_even_if_inactive = Qt; |
9f315aeb | 971 | |
29208e82 | 972 | DEFVAR_LISP ("mouse-leave-buffer-hook", Vmouse_leave_buffer_hook, |
fdb82f93 PJ |
973 | doc: /* Hook to run when about to switch windows with a mouse command. |
974 | Its purpose is to give temporary modes such as Isearch mode | |
975 | a way to turn themselves off when a mouse command switches windows. */); | |
ef2515c0 RS |
976 | Vmouse_leave_buffer_hook = Qnil; |
977 | ||
ec28a64d MB |
978 | defsubr (&Sinteractive); |
979 | defsubr (&Scall_interactively); | |
980 | defsubr (&Sprefix_numeric_value); | |
981 | } |