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ec28a64d | 1 | /* Call a Lisp function interactively. |
429ab54e | 2 | Copyright (C) 1985, 1986, 1993, 1994, 1995, 1997, 2000, 2001, 2002, |
114f9c96 | 3 | 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 |
8cabe764 | 4 | Free Software Foundation, Inc. |
ec28a64d MB |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
9ec0b715 | 8 | GNU Emacs is free software: you can redistribute it and/or modify |
ec28a64d | 9 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
10 | the Free Software Foundation, either version 3 of the License, or |
11 | (at your option) any later version. | |
ec28a64d MB |
12 | |
13 | GNU Emacs is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 19 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
ec28a64d MB |
20 | |
21 | ||
18160b98 | 22 | #include <config.h> |
d7306fe6 | 23 | #include <setjmp.h> |
fdb82f93 | 24 | |
ec28a64d MB |
25 | #include "lisp.h" |
26 | #include "buffer.h" | |
27 | #include "commands.h" | |
760cbdd3 | 28 | #include "keyboard.h" |
ec28a64d | 29 | #include "window.h" |
8feddab4 | 30 | #include "keymap.h" |
ec28a64d | 31 | |
c631c234 | 32 | extern Lisp_Object Qcursor_in_echo_area; |
93ed5f9d | 33 | extern Lisp_Object Qfile_directory_p; |
e5a31bbb | 34 | extern Lisp_Object Qonly; |
c631c234 | 35 | |
1e0c5826 | 36 | Lisp_Object Vcurrent_prefix_arg, Qminus, Qplus; |
ec28a64d MB |
37 | Lisp_Object Qcall_interactively; |
38 | Lisp_Object Vcommand_history; | |
39 | ||
225c2157 | 40 | extern Lisp_Object Vhistory_length; |
0605dd79 | 41 | extern Lisp_Object Vthis_original_command, real_this_command; |
d65859c3 | 42 | extern int history_delete_duplicates; |
225c2157 | 43 | |
ec28a64d | 44 | Lisp_Object Vcommand_debug_status, Qcommand_debug_status; |
52614803 | 45 | Lisp_Object Qenable_recursive_minibuffers; |
54b33868 | 46 | extern Lisp_Object Qface, Qminibuffer_prompt; |
ec28a64d | 47 | |
9f315aeb RS |
48 | /* Non-nil means treat the mark as active |
49 | even if mark_active is 0. */ | |
50 | Lisp_Object Vmark_even_if_inactive; | |
51 | ||
84db11d6 | 52 | Lisp_Object Qhandle_shift_selection; |
9bdb1538 | 53 | |
ef2515c0 RS |
54 | Lisp_Object Vmouse_leave_buffer_hook, Qmouse_leave_buffer_hook; |
55 | ||
120d0a23 | 56 | Lisp_Object Qlist, Qlet, Qletx, Qsave_excursion, Qprogn, Qif, Qwhen; |
824977b6 RS |
57 | static Lisp_Object preserved_fns; |
58 | ||
59 | /* Marker used within call-interactively to refer to point. */ | |
60 | static Lisp_Object point_marker; | |
03e130d5 | 61 | |
55b41ef5 CY |
62 | /* String for the prompt text used in Fcall_interactively. */ |
63 | static Lisp_Object callint_message; | |
425b457e | 64 | \f |
ec28a64d MB |
65 | /* ARGSUSED */ |
66 | DEFUN ("interactive", Finteractive, Sinteractive, 0, UNEVALLED, 0, | |
fdb82f93 PJ |
67 | doc: /* Specify a way of parsing arguments for interactive use of a function. |
68 | For example, write | |
f9257eed AM |
69 | (defun foo (arg buf) "Doc string" (interactive "P\\nbbuffer: ") .... ) |
70 | to make ARG be the raw prefix argument, and set BUF to an existing buffer, | |
71 | when `foo' is called as a command. | |
fdb82f93 PJ |
72 | The "call" to `interactive' is actually a declaration rather than a function; |
73 | it tells `call-interactively' how to read arguments | |
74 | to pass to the function. | |
75 | When actually called, `interactive' just returns nil. | |
76 | ||
f9257eed AM |
77 | Usually the argument of `interactive' is a string containing a code letter |
78 | followed optionally by a prompt. (Some code letters do not use I/O to get | |
79 | the argument and do not use prompts.) To get several arguments, concatenate | |
80 | the individual strings, separating them by newline characters. | |
81 | Prompts are passed to format, and may use % escapes to print the | |
fdb82f93 PJ |
82 | arguments that have already been read. |
83 | If the argument is not a string, it is evaluated to get a list of | |
84 | arguments to pass to the function. | |
85 | Just `(interactive)' means pass no args when calling interactively. | |
86 | ||
87 | Code letters available are: | |
88 | a -- Function name: symbol with a function definition. | |
89 | b -- Name of existing buffer. | |
90 | B -- Name of buffer, possibly nonexistent. | |
91 | c -- Character (no input method is used). | |
92 | C -- Command name: symbol with interactive function definition. | |
93 | d -- Value of point as number. Does not do I/O. | |
94 | D -- Directory name. | |
95 | e -- Parametrized event (i.e., one that's a list) that invoked this command. | |
96 | If used more than once, the Nth `e' returns the Nth parameterized event. | |
97 | This skips events that are integers or symbols. | |
98 | f -- Existing file name. | |
99 | F -- Possibly nonexistent file name. | |
75f9fbe8 | 100 | G -- Possibly nonexistent file name, defaulting to just directory name. |
fdb82f93 PJ |
101 | i -- Ignored, i.e. always nil. Does not do I/O. |
102 | k -- Key sequence (downcase the last event if needed to get a definition). | |
103 | K -- Key sequence to be redefined (do not downcase the last event). | |
104 | m -- Value of mark as number. Does not do I/O. | |
105 | M -- Any string. Inherits the current input method. | |
106 | n -- Number read using minibuffer. | |
425b457e | 107 | N -- Numeric prefix arg, or if none, do like code `n'. |
fdb82f93 PJ |
108 | p -- Prefix arg converted to number. Does not do I/O. |
109 | P -- Prefix arg in raw form. Does not do I/O. | |
110 | r -- Region: point and mark as 2 numeric args, smallest first. Does no I/O. | |
111 | s -- Any string. Does not inherit the current input method. | |
112 | S -- Any symbol. | |
39900c4e | 113 | U -- Mouse up event discarded by a previous k or K argument. |
fdb82f93 PJ |
114 | v -- Variable name: symbol that is user-variable-p. |
115 | x -- Lisp expression read but not evaluated. | |
116 | X -- Lisp expression read and evaluated. | |
117 | z -- Coding system. | |
118 | Z -- Coding system, nil if no prefix arg. | |
9bdb1538 CY |
119 | |
120 | In addition, if the string begins with `*', an error is signaled if | |
121 | the buffer is read-only. | |
122 | If the string begins with `@', Emacs searches the key sequence which | |
123 | invoked the command for its first mouse click (or any other event | |
124 | which specifies a window). | |
125 | If the string begins with `^' and `shift-select-mode' is non-nil, | |
2a4f8d3d | 126 | Emacs first calls the function `handle-shift-selection'. |
9bdb1538 CY |
127 | You may use `@', `*', and `^' together. They are processed in the |
128 | order that they appear, before reading any arguments. | |
d88bee5a | 129 | usage: (interactive &optional ARGS) */) |
5842a27b | 130 | (Lisp_Object args) |
ec28a64d MB |
131 | { |
132 | return Qnil; | |
133 | } | |
134 | ||
135 | /* Quotify EXP: if EXP is constant, return it. | |
136 | If EXP is not constant, return (quote EXP). */ | |
137 | Lisp_Object | |
971de7fb | 138 | quotify_arg (register Lisp_Object exp) |
ec28a64d | 139 | { |
6e54b3de | 140 | if (!INTEGERP (exp) && !STRINGP (exp) |
265a9e55 | 141 | && !NILP (exp) && !EQ (exp, Qt)) |
ec28a64d MB |
142 | return Fcons (Qquote, Fcons (exp, Qnil)); |
143 | ||
144 | return exp; | |
145 | } | |
146 | ||
147 | /* Modify EXP by quotifying each element (except the first). */ | |
148 | Lisp_Object | |
971de7fb | 149 | quotify_args (Lisp_Object exp) |
ec28a64d MB |
150 | { |
151 | register Lisp_Object tail; | |
7539e11f KR |
152 | Lisp_Object next; |
153 | for (tail = exp; CONSP (tail); tail = next) | |
ec28a64d | 154 | { |
7539e11f | 155 | next = XCDR (tail); |
f3fbd155 | 156 | XSETCAR (tail, quotify_arg (XCAR (tail))); |
ec28a64d MB |
157 | } |
158 | return exp; | |
159 | } | |
160 | ||
161 | char *callint_argfuns[] | |
162 | = {"", "point", "mark", "region-beginning", "region-end"}; | |
163 | ||
164 | static void | |
971de7fb | 165 | check_mark (int for_region) |
ec28a64d | 166 | { |
86c1cf23 KH |
167 | Lisp_Object tem; |
168 | tem = Fmarker_buffer (current_buffer->mark); | |
265a9e55 | 169 | if (NILP (tem) || (XBUFFER (tem) != current_buffer)) |
f203cf07 RS |
170 | error (for_region ? "The mark is not set now, so there is no region" |
171 | : "The mark is not set now"); | |
6497d2d8 RM |
172 | if (!NILP (Vtransient_mark_mode) && NILP (Vmark_even_if_inactive) |
173 | && NILP (current_buffer->mark_active)) | |
f439241f | 174 | xsignal0 (Qmark_inactive); |
ec28a64d MB |
175 | } |
176 | ||
64ea14d3 RS |
177 | /* If the list of args INPUT was produced with an explicit call to |
178 | `list', look for elements that were computed with | |
179 | (region-beginning) or (region-end), and put those expressions into | |
180 | VALUES instead of the present values. | |
181 | ||
182 | This function doesn't return a value because it modifies elements | |
183 | of VALUES to do its job. */ | |
184 | ||
d1135afc | 185 | static void |
971de7fb | 186 | fix_command (Lisp_Object input, Lisp_Object values) |
d1135afc | 187 | { |
d1135afc JB |
188 | if (CONSP (input)) |
189 | { | |
190 | Lisp_Object car; | |
191 | ||
192 | car = XCAR (input); | |
193 | /* Skip through certain special forms. */ | |
194 | while (EQ (car, Qlet) || EQ (car, Qletx) | |
195 | || EQ (car, Qsave_excursion) | |
196 | || EQ (car, Qprogn)) | |
197 | { | |
198 | while (CONSP (XCDR (input))) | |
199 | input = XCDR (input); | |
200 | input = XCAR (input); | |
201 | if (!CONSP (input)) | |
202 | break; | |
203 | car = XCAR (input); | |
204 | } | |
205 | if (EQ (car, Qlist)) | |
206 | { | |
207 | Lisp_Object intail, valtail; | |
208 | for (intail = Fcdr (input), valtail = values; | |
209 | CONSP (valtail); | |
5dc05618 | 210 | intail = Fcdr (intail), valtail = XCDR (valtail)) |
d1135afc JB |
211 | { |
212 | Lisp_Object elt; | |
213 | elt = Fcar (intail); | |
214 | if (CONSP (elt)) | |
215 | { | |
216 | Lisp_Object presflag, carelt; | |
217 | carelt = Fcar (elt); | |
218 | /* If it is (if X Y), look at Y. */ | |
219 | if (EQ (carelt, Qif) | |
220 | && EQ (Fnthcdr (make_number (3), elt), Qnil)) | |
221 | elt = Fnth (make_number (2), elt); | |
222 | /* If it is (when ... Y), look at Y. */ | |
223 | else if (EQ (carelt, Qwhen)) | |
224 | { | |
225 | while (CONSP (XCDR (elt))) | |
226 | elt = XCDR (elt); | |
227 | elt = Fcar (elt); | |
228 | } | |
229 | ||
230 | /* If the function call we're looking at | |
231 | is a special preserved one, copy the | |
232 | whole expression for this argument. */ | |
233 | if (CONSP (elt)) | |
234 | { | |
235 | presflag = Fmemq (Fcar (elt), preserved_fns); | |
236 | if (!NILP (presflag)) | |
237 | Fsetcar (valtail, Fcar (intail)); | |
238 | } | |
239 | } | |
240 | } | |
241 | } | |
242 | } | |
243 | } | |
ec28a64d | 244 | |
d455db8e | 245 | DEFUN ("call-interactively", Fcall_interactively, Scall_interactively, 1, 3, 0, |
fdb82f93 PJ |
246 | doc: /* Call FUNCTION, reading args according to its interactive calling specs. |
247 | Return the value FUNCTION returns. | |
248 | The function contains a specification of how to do the argument reading. | |
249 | In the case of user-defined functions, this is specified by placing a call | |
250 | to the function `interactive' at the top level of the function body. | |
251 | See `interactive'. | |
252 | ||
253 | Optional second arg RECORD-FLAG non-nil | |
254 | means unconditionally put this command in the command-history. | |
255 | Otherwise, this is done only if an arg is read using the minibuffer. | |
2a95a27c | 256 | |
fdb82f93 | 257 | Optional third arg KEYS, if given, specifies the sequence of events to |
2a95a27c CY |
258 | supply, as a vector, if the command inquires which events were used to |
259 | invoke it. If KEYS is omitted or nil, the return value of | |
260 | `this-command-keys-vector' is used. */) | |
5842a27b | 261 | (Lisp_Object function, Lisp_Object record_flag, Lisp_Object keys) |
ec28a64d MB |
262 | { |
263 | Lisp_Object *args, *visargs; | |
ec28a64d | 264 | Lisp_Object specs; |
079e479f | 265 | Lisp_Object filter_specs; |
ec28a64d | 266 | Lisp_Object teml; |
39900c4e | 267 | Lisp_Object up_event; |
52614803 | 268 | Lisp_Object enable; |
aed13378 | 269 | int speccount = SPECPDL_INDEX (); |
ec28a64d | 270 | |
bc78232c JB |
271 | /* The index of the next element of this_command_keys to examine for |
272 | the 'e' interactive code. */ | |
dbc4e1c1 | 273 | int next_event; |
bc78232c | 274 | |
ec28a64d MB |
275 | Lisp_Object prefix_arg; |
276 | unsigned char *string; | |
277 | unsigned char *tem; | |
63007de2 JB |
278 | |
279 | /* If varies[i] > 0, the i'th argument shouldn't just have its value | |
280 | in this call quoted in the command history. It should be | |
281 | recorded as a call to the function named callint_argfuns[varies[i]]. */ | |
ec28a64d | 282 | int *varies; |
63007de2 | 283 | |
ec28a64d MB |
284 | register int i, j; |
285 | int count, foo; | |
ec28a64d MB |
286 | char prompt1[100]; |
287 | char *tem1; | |
288 | int arg_from_tty = 0; | |
39900c4e | 289 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; |
d455db8e | 290 | int key_count; |
09c886dc | 291 | int record_then_fail = 0; |
d455db8e | 292 | |
0605dd79 RS |
293 | Lisp_Object save_this_command, save_last_command; |
294 | Lisp_Object save_this_original_command, save_real_this_command; | |
295 | ||
296 | save_this_command = Vthis_command; | |
297 | save_this_original_command = Vthis_original_command; | |
298 | save_real_this_command = real_this_command; | |
299 | save_last_command = current_kboard->Vlast_command; | |
300 | ||
d455db8e RS |
301 | if (NILP (keys)) |
302 | keys = this_command_keys, key_count = this_command_key_count; | |
303 | else | |
304 | { | |
b7826503 | 305 | CHECK_VECTOR (keys); |
d455db8e RS |
306 | key_count = XVECTOR (keys)->size; |
307 | } | |
ec28a64d | 308 | |
e5d77022 | 309 | /* Save this now, since use of minibuffer will clobber it. */ |
8c917bf2 | 310 | prefix_arg = Vcurrent_prefix_arg; |
ec28a64d | 311 | |
6e54b3de | 312 | if (SYMBOLP (function)) |
afa4c0f3 | 313 | enable = Fget (function, Qenable_recursive_minibuffers); |
4f895918 GM |
314 | else |
315 | enable = Qnil; | |
52614803 | 316 | |
ec28a64d MB |
317 | specs = Qnil; |
318 | string = 0; | |
079e479f RS |
319 | /* The idea of FILTER_SPECS is to provide away to |
320 | specify how to represent the arguments in command history. | |
321 | The feature is not fully implemented. */ | |
322 | filter_specs = Qnil; | |
ec28a64d | 323 | |
39900c4e KS |
324 | /* If k or K discard an up-event, save it here so it can be retrieved with U */ |
325 | up_event = Qnil; | |
326 | ||
ccb5c14f | 327 | /* Set SPECS to the interactive form, or barf if not interactive. */ |
023accd6 SM |
328 | { |
329 | Lisp_Object form; | |
330 | GCPRO2 (function, prefix_arg); | |
331 | form = Finteractive_form (function); | |
332 | UNGCPRO; | |
333 | if (CONSP (form)) | |
334 | specs = filter_specs = Fcar (XCDR (form)); | |
335 | else | |
336 | wrong_type_argument (Qcommandp, function); | |
337 | } | |
ec28a64d | 338 | |
ccb5c14f | 339 | /* If SPECS is set to a string, use it as an interactive prompt. */ |
6e54b3de | 340 | if (STRINGP (specs)) |
46947372 JB |
341 | { |
342 | /* Make a copy of string so that if a GC relocates specs, | |
343 | `string' will still be valid. */ | |
d5db4077 | 344 | string = (unsigned char *) alloca (SBYTES (specs) + 1); |
72af86bd | 345 | memcpy (string, SDATA (specs), SBYTES (specs) + 1); |
46947372 | 346 | } |
023accd6 | 347 | else |
ec28a64d | 348 | { |
03e130d5 | 349 | Lisp_Object input; |
91a6ba78 | 350 | i = num_input_events; |
03e130d5 RS |
351 | input = specs; |
352 | /* Compute the arg values using the user's expression. */ | |
079e479f | 353 | GCPRO2 (input, filter_specs); |
6bc1abf2 | 354 | specs = Feval (specs); |
079e479f | 355 | UNGCPRO; |
91a6ba78 | 356 | if (i != num_input_events || !NILP (record_flag)) |
03e130d5 RS |
357 | { |
358 | /* We should record this command on the command history. */ | |
f1321dc3 | 359 | Lisp_Object values; |
d65859c3 | 360 | Lisp_Object this_cmd; |
03e130d5 RS |
361 | /* Make a copy of the list of values, for the command history, |
362 | and turn them into things we can eval. */ | |
363 | values = quotify_args (Fcopy_sequence (specs)); | |
120d0a23 | 364 | fix_command (input, values); |
d65859c3 DN |
365 | this_cmd = Fcons (function, values); |
366 | if (history_delete_duplicates) | |
367 | Vcommand_history = Fdelete (this_cmd, Vcommand_history); | |
368 | Vcommand_history = Fcons (this_cmd, Vcommand_history); | |
225c2157 RS |
369 | |
370 | /* Don't keep command history around forever. */ | |
b9f0b172 | 371 | if (INTEGERP (Vhistory_length) && XINT (Vhistory_length) > 0) |
225c2157 RS |
372 | { |
373 | teml = Fnthcdr (Vhistory_length, Vcommand_history); | |
374 | if (CONSP (teml)) | |
f3fbd155 | 375 | XSETCDR (teml, Qnil); |
225c2157 | 376 | } |
03e130d5 | 377 | } |
0605dd79 RS |
378 | |
379 | Vthis_command = save_this_command; | |
380 | Vthis_original_command = save_this_original_command; | |
381 | real_this_command= save_real_this_command; | |
382 | current_kboard->Vlast_command = save_last_command; | |
383 | ||
256c9c3a KL |
384 | temporarily_switch_to_single_kboard (NULL); |
385 | return unbind_to (speccount, apply1 (function, specs)); | |
ec28a64d MB |
386 | } |
387 | ||
388 | /* Here if function specifies a string to control parsing the defaults */ | |
389 | ||
dbc4e1c1 | 390 | /* Set next_event to point to the first event with parameters. */ |
d455db8e | 391 | for (next_event = 0; next_event < key_count; next_event++) |
1b511542 | 392 | if (EVENT_HAS_PARAMETERS (AREF (keys, next_event))) |
dbc4e1c1 | 393 | break; |
09c886dc | 394 | |
42bb2790 | 395 | /* Handle special starting chars `*' and `@'. Also `-'. */ |
e92d107b | 396 | /* Note that `+' is reserved for user extensions. */ |
ec28a64d MB |
397 | while (1) |
398 | { | |
fb775602 | 399 | if (*string == '+') |
e92d107b RS |
400 | error ("`+' is not used in `interactive' for ordinary commands"); |
401 | else if (*string == '*') | |
ec28a64d MB |
402 | { |
403 | string++; | |
265a9e55 | 404 | if (!NILP (current_buffer->read_only)) |
09c886dc RS |
405 | { |
406 | if (!NILP (record_flag)) | |
407 | { | |
408 | unsigned char *p = string; | |
409 | while (*p) | |
410 | { | |
411 | if (! (*p == 'r' || *p == 'p' || *p == 'P' | |
412 | || *p == '\n')) | |
413 | Fbarf_if_buffer_read_only (); | |
414 | p++; | |
415 | } | |
416 | record_then_fail = 1; | |
417 | } | |
418 | else | |
419 | Fbarf_if_buffer_read_only (); | |
420 | } | |
ec28a64d | 421 | } |
42bb2790 RS |
422 | /* Ignore this for semi-compatibility with Lucid. */ |
423 | else if (*string == '-') | |
424 | string++; | |
ec28a64d MB |
425 | else if (*string == '@') |
426 | { | |
c9aa6a41 | 427 | Lisp_Object event, tem; |
dbc4e1c1 | 428 | |
170d3006 | 429 | event = (next_event < key_count |
1b511542 | 430 | ? AREF (keys, next_event) |
170d3006 | 431 | : Qnil); |
dbc4e1c1 | 432 | if (EVENT_HAS_PARAMETERS (event) |
c9aa6a41 RS |
433 | && (tem = XCDR (event), CONSP (tem)) |
434 | && (tem = XCAR (tem), CONSP (tem)) | |
435 | && (tem = XCAR (tem), WINDOWP (tem))) | |
d1fa2e8a | 436 | { |
c9aa6a41 RS |
437 | if (MINI_WINDOW_P (XWINDOW (tem)) |
438 | && ! (minibuf_level > 0 && EQ (tem, minibuf_window))) | |
d1fa2e8a | 439 | error ("Attempt to select inactive minibuffer window"); |
ef2515c0 RS |
440 | |
441 | /* If the current buffer wants to clean up, let it. */ | |
442 | if (!NILP (Vmouse_leave_buffer_hook)) | |
443 | call1 (Vrun_hooks, Qmouse_leave_buffer_hook); | |
444 | ||
c9aa6a41 | 445 | Fselect_window (tem, Qnil); |
d1fa2e8a | 446 | } |
ec28a64d | 447 | string++; |
ec28a64d | 448 | } |
9bdb1538 CY |
449 | else if (*string == '^') |
450 | { | |
84db11d6 | 451 | call0 (Qhandle_shift_selection); |
9bdb1538 CY |
452 | string++; |
453 | } | |
ec28a64d MB |
454 | else break; |
455 | } | |
456 | ||
457 | /* Count the number of arguments the interactive spec would have | |
458 | us give to the function. */ | |
459 | tem = string; | |
e4305426 | 460 | for (j = 0; *tem;) |
ec28a64d MB |
461 | { |
462 | /* 'r' specifications ("point and mark as 2 numeric args") | |
463 | produce *two* arguments. */ | |
e4305426 DK |
464 | if (*tem == 'r') |
465 | j += 2; | |
466 | else | |
467 | j++; | |
8966b757 | 468 | tem = (unsigned char *) strchr (tem, '\n'); |
ec28a64d | 469 | if (tem) |
e4305426 | 470 | ++tem; |
ec28a64d | 471 | else |
e4305426 | 472 | break; |
ec28a64d | 473 | } |
6bc1abf2 | 474 | count = j; |
ec28a64d MB |
475 | |
476 | args = (Lisp_Object *) alloca ((count + 1) * sizeof (Lisp_Object)); | |
477 | visargs = (Lisp_Object *) alloca ((count + 1) * sizeof (Lisp_Object)); | |
ec28a64d MB |
478 | varies = (int *) alloca ((count + 1) * sizeof (int)); |
479 | ||
480 | for (i = 0; i < (count + 1); i++) | |
481 | { | |
482 | args[i] = Qnil; | |
483 | visargs[i] = Qnil; | |
484 | varies[i] = 0; | |
485 | } | |
486 | ||
39900c4e | 487 | GCPRO5 (prefix_arg, function, *args, *visargs, up_event); |
ec28a64d MB |
488 | gcpro3.nvars = (count + 1); |
489 | gcpro4.nvars = (count + 1); | |
490 | ||
52614803 RS |
491 | if (!NILP (enable)) |
492 | specbind (Qenable_recursive_minibuffers, Qt); | |
493 | ||
ec28a64d | 494 | tem = string; |
6bc1abf2 | 495 | for (i = 1; *tem; i++) |
ec28a64d MB |
496 | { |
497 | strncpy (prompt1, tem + 1, sizeof prompt1 - 1); | |
498 | prompt1[sizeof prompt1 - 1] = 0; | |
8966b757 | 499 | tem1 = strchr (prompt1, '\n'); |
ec28a64d | 500 | if (tem1) *tem1 = 0; |
55b41ef5 CY |
501 | |
502 | visargs[0] = build_string (prompt1); | |
8966b757 | 503 | if (strchr (prompt1, '%')) |
55b41ef5 CY |
504 | callint_message = Fformat (i, visargs); |
505 | else | |
506 | callint_message = visargs[0]; | |
ec28a64d MB |
507 | |
508 | switch (*tem) | |
509 | { | |
510 | case 'a': /* Symbol defined as a function */ | |
55b41ef5 | 511 | visargs[i] = Fcompleting_read (callint_message, |
ff9cd111 | 512 | Vobarray, Qfboundp, Qt, |
93fb51ae | 513 | Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
514 | /* Passing args[i] directly stimulates compiler bug */ |
515 | teml = visargs[i]; | |
516 | args[i] = Fintern (teml, Qnil); | |
517 | break; | |
518 | ||
519 | case 'b': /* Name of existing buffer */ | |
f03f8f2c JL |
520 | args[i] = Fcurrent_buffer (); |
521 | if (EQ (selected_window, minibuf_window)) | |
522 | args[i] = Fother_buffer (args[i], Qnil, Qnil); | |
523 | args[i] = Fread_buffer (callint_message, args[i], Qt); | |
524 | break; | |
525 | ||
ec28a64d | 526 | case 'B': /* Name of buffer, possibly nonexistent */ |
f03f8f2c JL |
527 | args[i] = Fread_buffer (callint_message, |
528 | Fother_buffer (Fcurrent_buffer (), Qnil, Qnil), | |
529 | Qnil); | |
ec28a64d MB |
530 | break; |
531 | ||
532 | case 'c': /* Character */ | |
54b33868 MR |
533 | /* Prompt in `minibuffer-prompt' face. */ |
534 | Fput_text_property (make_number (0), | |
535 | make_number (SCHARS (callint_message)), | |
536 | Qface, Qminibuffer_prompt, callint_message); | |
55b41ef5 | 537 | args[i] = Fread_char (callint_message, Qnil, Qnil); |
453ed650 | 538 | message1_nolog ((char *) 0); |
ec28a64d MB |
539 | /* Passing args[i] directly stimulates compiler bug */ |
540 | teml = args[i]; | |
541 | visargs[i] = Fchar_to_string (teml); | |
542 | break; | |
543 | ||
544 | case 'C': /* Command: symbol with interactive function */ | |
55b41ef5 | 545 | visargs[i] = Fcompleting_read (callint_message, |
ff9cd111 | 546 | Vobarray, Qcommandp, |
93fb51ae | 547 | Qt, Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
548 | /* Passing args[i] directly stimulates compiler bug */ |
549 | teml = visargs[i]; | |
550 | args[i] = Fintern (teml, Qnil); | |
551 | break; | |
552 | ||
553 | case 'd': /* Value of point. Does not do I/O. */ | |
dc330139 | 554 | set_marker_both (point_marker, Qnil, PT, PT_BYTE); |
824977b6 | 555 | args[i] = point_marker; |
ec28a64d MB |
556 | /* visargs[i] = Qnil; */ |
557 | varies[i] = 1; | |
558 | break; | |
559 | ||
ec28a64d | 560 | case 'D': /* Directory name. */ |
55b41ef5 | 561 | args[i] = Fread_file_name (callint_message, Qnil, |
93ed5f9d KS |
562 | current_buffer->directory, Qlambda, Qnil, |
563 | Qfile_directory_p); | |
ec28a64d MB |
564 | break; |
565 | ||
566 | case 'f': /* Existing file name. */ | |
55b41ef5 | 567 | args[i] = Fread_file_name (callint_message, |
93ed5f9d | 568 | Qnil, Qnil, Qlambda, Qnil, Qnil); |
ec28a64d MB |
569 | break; |
570 | ||
571 | case 'F': /* Possibly nonexistent file name. */ | |
55b41ef5 | 572 | args[i] = Fread_file_name (callint_message, |
93ed5f9d | 573 | Qnil, Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
574 | break; |
575 | ||
75f9fbe8 RS |
576 | case 'G': /* Possibly nonexistent file name, |
577 | default to directory alone. */ | |
55b41ef5 | 578 | args[i] = Fread_file_name (callint_message, |
977f6cfb | 579 | Qnil, Qnil, Qnil, empty_unibyte_string, Qnil); |
75f9fbe8 RS |
580 | break; |
581 | ||
40b2421c KH |
582 | case 'i': /* Ignore an argument -- Does not do I/O */ |
583 | varies[i] = -1; | |
584 | break; | |
585 | ||
1989e7bc | 586 | case 'k': /* Key sequence. */ |
c631c234 | 587 | { |
aed13378 | 588 | int speccount1 = SPECPDL_INDEX (); |
c631c234 | 589 | specbind (Qcursor_in_echo_area, Qt); |
54b33868 MR |
590 | /* Prompt in `minibuffer-prompt' face. */ |
591 | Fput_text_property (make_number (0), | |
592 | make_number (SCHARS (callint_message)), | |
593 | Qface, Qminibuffer_prompt, callint_message); | |
55b41ef5 | 594 | args[i] = Fread_key_sequence (callint_message, |
ad4ac475 | 595 | Qnil, Qnil, Qnil, Qnil); |
c631c234 RS |
596 | unbind_to (speccount1, Qnil); |
597 | teml = args[i]; | |
a1bfe073 | 598 | visargs[i] = Fkey_description (teml, Qnil); |
cdfac812 RS |
599 | |
600 | /* If the key sequence ends with a down-event, | |
601 | discard the following up-event. */ | |
602 | teml = Faref (args[i], make_number (XINT (Flength (args[i])) - 1)); | |
603 | if (CONSP (teml)) | |
70949dac | 604 | teml = XCAR (teml); |
cdfac812 RS |
605 | if (SYMBOLP (teml)) |
606 | { | |
607 | Lisp_Object tem2; | |
608 | ||
609 | teml = Fget (teml, intern ("event-symbol-elements")); | |
4b27f17c AS |
610 | /* Ignore first element, which is the base key. */ |
611 | tem2 = Fmemq (intern ("down"), Fcdr (teml)); | |
cdfac812 | 612 | if (! NILP (tem2)) |
43811b4e | 613 | up_event = Fread_event (Qnil, Qnil, Qnil); |
cdfac812 | 614 | } |
c631c234 | 615 | } |
1989e7bc RS |
616 | break; |
617 | ||
618 | case 'K': /* Key sequence to be defined. */ | |
c631c234 | 619 | { |
aed13378 | 620 | int speccount1 = SPECPDL_INDEX (); |
c631c234 | 621 | specbind (Qcursor_in_echo_area, Qt); |
54b33868 MR |
622 | /* Prompt in `minibuffer-prompt' face. */ |
623 | Fput_text_property (make_number (0), | |
624 | make_number (SCHARS (callint_message)), | |
625 | Qface, Qminibuffer_prompt, callint_message); | |
55b41ef5 | 626 | args[i] = Fread_key_sequence (callint_message, |
ad4ac475 | 627 | Qnil, Qt, Qnil, Qnil); |
c631c234 | 628 | teml = args[i]; |
a1bfe073 | 629 | visargs[i] = Fkey_description (teml, Qnil); |
c631c234 | 630 | unbind_to (speccount1, Qnil); |
cdfac812 RS |
631 | |
632 | /* If the key sequence ends with a down-event, | |
633 | discard the following up-event. */ | |
634 | teml = Faref (args[i], make_number (XINT (Flength (args[i])) - 1)); | |
635 | if (CONSP (teml)) | |
70949dac | 636 | teml = XCAR (teml); |
cdfac812 RS |
637 | if (SYMBOLP (teml)) |
638 | { | |
639 | Lisp_Object tem2; | |
640 | ||
641 | teml = Fget (teml, intern ("event-symbol-elements")); | |
4b27f17c AS |
642 | /* Ignore first element, which is the base key. */ |
643 | tem2 = Fmemq (intern ("down"), Fcdr (teml)); | |
cdfac812 | 644 | if (! NILP (tem2)) |
43811b4e | 645 | up_event = Fread_event (Qnil, Qnil, Qnil); |
cdfac812 | 646 | } |
c631c234 | 647 | } |
ec28a64d MB |
648 | break; |
649 | ||
39900c4e KS |
650 | case 'U': /* Up event from last k or K */ |
651 | if (!NILP (up_event)) | |
652 | { | |
653 | args[i] = Fmake_vector (make_number (1), up_event); | |
654 | up_event = Qnil; | |
655 | teml = args[i]; | |
656 | visargs[i] = Fkey_description (teml, Qnil); | |
657 | } | |
658 | break; | |
659 | ||
bc78232c | 660 | case 'e': /* The invoking event. */ |
d455db8e | 661 | if (next_event >= key_count) |
bc78232c | 662 | error ("%s must be bound to an event with parameters", |
6e54b3de | 663 | (SYMBOLP (function) |
d5db4077 | 664 | ? (char *) SDATA (SYMBOL_NAME (function)) |
bc78232c | 665 | : "command")); |
1b511542 SM |
666 | args[i] = AREF (keys, next_event); |
667 | next_event++; | |
e5d77022 | 668 | varies[i] = -1; |
dbc4e1c1 JB |
669 | |
670 | /* Find the next parameterized event. */ | |
d455db8e | 671 | while (next_event < key_count |
1b511542 | 672 | && !(EVENT_HAS_PARAMETERS (AREF (keys, next_event)))) |
dbc4e1c1 JB |
673 | next_event++; |
674 | ||
63007de2 JB |
675 | break; |
676 | ||
ec28a64d | 677 | case 'm': /* Value of mark. Does not do I/O. */ |
f203cf07 | 678 | check_mark (0); |
ec28a64d | 679 | /* visargs[i] = Qnil; */ |
824977b6 | 680 | args[i] = current_buffer->mark; |
ec28a64d MB |
681 | varies[i] = 2; |
682 | break; | |
683 | ||
93fb51ae KH |
684 | case 'M': /* String read via minibuffer with |
685 | inheriting the current input method. */ | |
55b41ef5 | 686 | args[i] = Fread_string (callint_message, |
93fb51ae KH |
687 | Qnil, Qnil, Qnil, Qt); |
688 | break; | |
689 | ||
425b457e | 690 | case 'N': /* Prefix arg as number, else number from minibuffer */ |
265a9e55 | 691 | if (!NILP (prefix_arg)) |
ec28a64d MB |
692 | goto have_prefix_arg; |
693 | case 'n': /* Read number from minibuffer. */ | |
f0490a0b RS |
694 | { |
695 | int first = 1; | |
696 | do | |
697 | { | |
698 | Lisp_Object tem; | |
e7c4e229 | 699 | if (! first) |
f0490a0b RS |
700 | { |
701 | message ("Please enter a number."); | |
e7c4e229 | 702 | sit_for (make_number (1), 0, 0); |
f0490a0b RS |
703 | } |
704 | first = 0; | |
705 | ||
55b41ef5 | 706 | tem = Fread_from_minibuffer (callint_message, |
93fb51ae | 707 | Qnil, Qnil, Qnil, Qnil, Qnil, |
ae4c2a3b | 708 | Qnil); |
d5db4077 | 709 | if (! STRINGP (tem) || SCHARS (tem) == 0) |
f0490a0b RS |
710 | args[i] = Qnil; |
711 | else | |
712 | args[i] = Fread (tem); | |
713 | } | |
714 | while (! NUMBERP (args[i])); | |
715 | } | |
55b41ef5 | 716 | visargs[i] = args[i]; |
ec28a64d MB |
717 | break; |
718 | ||
719 | case 'P': /* Prefix arg in raw form. Does no I/O. */ | |
ec28a64d MB |
720 | args[i] = prefix_arg; |
721 | /* visargs[i] = Qnil; */ | |
722 | varies[i] = -1; | |
723 | break; | |
724 | ||
725 | case 'p': /* Prefix arg converted to number. No I/O. */ | |
71eda2d5 | 726 | have_prefix_arg: |
ec28a64d MB |
727 | args[i] = Fprefix_numeric_value (prefix_arg); |
728 | /* visargs[i] = Qnil; */ | |
729 | varies[i] = -1; | |
730 | break; | |
731 | ||
732 | case 'r': /* Region, point and mark as 2 args. */ | |
f203cf07 | 733 | check_mark (1); |
dc330139 | 734 | set_marker_both (point_marker, Qnil, PT, PT_BYTE); |
ec28a64d MB |
735 | /* visargs[i+1] = Qnil; */ |
736 | foo = marker_position (current_buffer->mark); | |
737 | /* visargs[i] = Qnil; */ | |
6ec8bbd2 | 738 | args[i] = PT < foo ? point_marker : current_buffer->mark; |
ec28a64d | 739 | varies[i] = 3; |
6ec8bbd2 | 740 | args[++i] = PT > foo ? point_marker : current_buffer->mark; |
ec28a64d MB |
741 | varies[i] = 4; |
742 | break; | |
743 | ||
93fb51ae KH |
744 | case 's': /* String read via minibuffer without |
745 | inheriting the current input method. */ | |
55b41ef5 | 746 | args[i] = Fread_string (callint_message, |
93fb51ae | 747 | Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
748 | break; |
749 | ||
750 | case 'S': /* Any symbol. */ | |
55b41ef5 | 751 | visargs[i] = Fread_string (callint_message, |
93fb51ae | 752 | Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
753 | /* Passing args[i] directly stimulates compiler bug */ |
754 | teml = visargs[i]; | |
755 | args[i] = Fintern (teml, Qnil); | |
756 | break; | |
757 | ||
758 | case 'v': /* Variable name: symbol that is | |
759 | user-variable-p. */ | |
55b41ef5 | 760 | args[i] = Fread_variable (callint_message, Qnil); |
ec28a64d MB |
761 | visargs[i] = last_minibuf_string; |
762 | break; | |
763 | ||
764 | case 'x': /* Lisp expression read but not evaluated */ | |
55b41ef5 | 765 | args[i] = Fread_minibuffer (callint_message, Qnil); |
ec28a64d MB |
766 | visargs[i] = last_minibuf_string; |
767 | break; | |
768 | ||
769 | case 'X': /* Lisp expression read and evaluated */ | |
55b41ef5 | 770 | args[i] = Feval_minibuffer (callint_message, Qnil); |
ec28a64d MB |
771 | visargs[i] = last_minibuf_string; |
772 | break; | |
773 | ||
40b2421c KH |
774 | case 'Z': /* Coding-system symbol, or ignore the |
775 | argument if no prefix */ | |
776 | if (NILP (prefix_arg)) | |
777 | { | |
778 | args[i] = Qnil; | |
779 | varies[i] = -1; | |
780 | } | |
177c0ea7 | 781 | else |
40b2421c KH |
782 | { |
783 | args[i] | |
55b41ef5 | 784 | = Fread_non_nil_coding_system (callint_message); |
40b2421c KH |
785 | visargs[i] = last_minibuf_string; |
786 | } | |
787 | break; | |
788 | ||
789 | case 'z': /* Coding-system symbol or nil */ | |
55b41ef5 | 790 | args[i] = Fread_coding_system (callint_message, Qnil); |
40b2421c KH |
791 | visargs[i] = last_minibuf_string; |
792 | break; | |
793 | ||
e92d107b RS |
794 | /* We have a case for `+' so we get an error |
795 | if anyone tries to define one here. */ | |
796 | case '+': | |
ec28a64d | 797 | default: |
e92d107b | 798 | error ("Invalid control letter `%c' (%03o) in interactive calling string", |
ec28a64d MB |
799 | *tem, *tem); |
800 | } | |
801 | ||
802 | if (varies[i] == 0) | |
803 | arg_from_tty = 1; | |
804 | ||
6e54b3de | 805 | if (NILP (visargs[i]) && STRINGP (args[i])) |
ec28a64d MB |
806 | visargs[i] = args[i]; |
807 | ||
8966b757 | 808 | tem = (unsigned char *) strchr (tem, '\n'); |
ec28a64d MB |
809 | if (tem) tem++; |
810 | else tem = (unsigned char *) ""; | |
811 | } | |
52614803 | 812 | unbind_to (speccount, Qnil); |
ec28a64d MB |
813 | |
814 | QUIT; | |
815 | ||
816 | args[0] = function; | |
817 | ||
7868a977 | 818 | if (arg_from_tty || !NILP (record_flag)) |
ec28a64d MB |
819 | { |
820 | visargs[0] = function; | |
63007de2 | 821 | for (i = 1; i < count + 1; i++) |
824977b6 RS |
822 | { |
823 | if (varies[i] > 0) | |
824 | visargs[i] = Fcons (intern (callint_argfuns[varies[i]]), Qnil); | |
825 | else | |
826 | visargs[i] = quotify_arg (args[i]); | |
827 | } | |
ec28a64d MB |
828 | Vcommand_history = Fcons (Flist (count + 1, visargs), |
829 | Vcommand_history); | |
225c2157 | 830 | /* Don't keep command history around forever. */ |
b9f0b172 | 831 | if (INTEGERP (Vhistory_length) && XINT (Vhistory_length) > 0) |
225c2157 RS |
832 | { |
833 | teml = Fnthcdr (Vhistory_length, Vcommand_history); | |
834 | if (CONSP (teml)) | |
f3fbd155 | 835 | XSETCDR (teml, Qnil); |
225c2157 | 836 | } |
ec28a64d MB |
837 | } |
838 | ||
824977b6 RS |
839 | /* If we used a marker to hold point, mark, or an end of the region, |
840 | temporarily, convert it to an integer now. */ | |
f4c8ded2 | 841 | for (i = 1; i <= count; i++) |
824977b6 RS |
842 | if (varies[i] >= 1 && varies[i] <= 4) |
843 | XSETINT (args[i], marker_position (args[i])); | |
844 | ||
09c886dc RS |
845 | if (record_then_fail) |
846 | Fbarf_if_buffer_read_only (); | |
847 | ||
0605dd79 RS |
848 | Vthis_command = save_this_command; |
849 | Vthis_original_command = save_this_original_command; | |
850 | real_this_command= save_real_this_command; | |
851 | current_kboard->Vlast_command = save_last_command; | |
852 | ||
ec28a64d MB |
853 | { |
854 | Lisp_Object val; | |
ec28a64d MB |
855 | specbind (Qcommand_debug_status, Qnil); |
856 | ||
b3e6f69c | 857 | temporarily_switch_to_single_kboard (NULL); |
ec28a64d MB |
858 | val = Ffuncall (count + 1, args); |
859 | UNGCPRO; | |
860 | return unbind_to (speccount, val); | |
861 | } | |
177c0ea7 | 862 | } |
ec28a64d MB |
863 | |
864 | DEFUN ("prefix-numeric-value", Fprefix_numeric_value, Sprefix_numeric_value, | |
fdb82f93 PJ |
865 | 1, 1, 0, |
866 | doc: /* Return numeric meaning of raw prefix argument RAW. | |
867 | A raw prefix argument is what you get from `(interactive "P")'. | |
868 | Its numeric meaning is what you would get from `(interactive "p")'. */) | |
5842a27b | 869 | (Lisp_Object raw) |
ec28a64d MB |
870 | { |
871 | Lisp_Object val; | |
177c0ea7 | 872 | |
265a9e55 | 873 | if (NILP (raw)) |
acab6442 | 874 | XSETFASTINT (val, 1); |
fd5285f3 | 875 | else if (EQ (raw, Qminus)) |
ec28a64d | 876 | XSETINT (val, -1); |
70949dac KR |
877 | else if (CONSP (raw) && INTEGERP (XCAR (raw))) |
878 | XSETINT (val, XINT (XCAR (raw))); | |
6e54b3de | 879 | else if (INTEGERP (raw)) |
ec28a64d MB |
880 | val = raw; |
881 | else | |
acab6442 | 882 | XSETFASTINT (val, 1); |
ec28a64d MB |
883 | |
884 | return val; | |
885 | } | |
886 | ||
dfcf069d | 887 | void |
971de7fb | 888 | syms_of_callint (void) |
ec28a64d | 889 | { |
824977b6 RS |
890 | point_marker = Fmake_marker (); |
891 | staticpro (&point_marker); | |
892 | ||
55b41ef5 CY |
893 | callint_message = Qnil; |
894 | staticpro (&callint_message); | |
895 | ||
d67b4f80 DN |
896 | preserved_fns = pure_cons (intern_c_string ("region-beginning"), |
897 | pure_cons (intern_c_string ("region-end"), | |
898 | pure_cons (intern_c_string ("point"), | |
899 | pure_cons (intern_c_string ("mark"), Qnil)))); | |
03e130d5 | 900 | |
d67b4f80 | 901 | Qlist = intern_c_string ("list"); |
03e130d5 | 902 | staticpro (&Qlist); |
d67b4f80 | 903 | Qlet = intern_c_string ("let"); |
8450690a | 904 | staticpro (&Qlet); |
d67b4f80 | 905 | Qif = intern_c_string ("if"); |
120d0a23 | 906 | staticpro (&Qif); |
d67b4f80 | 907 | Qwhen = intern_c_string ("when"); |
120d0a23 | 908 | staticpro (&Qwhen); |
d67b4f80 | 909 | Qletx = intern_c_string ("let*"); |
8450690a | 910 | staticpro (&Qletx); |
d67b4f80 | 911 | Qsave_excursion = intern_c_string ("save-excursion"); |
8450690a | 912 | staticpro (&Qsave_excursion); |
d67b4f80 | 913 | Qprogn = intern_c_string ("progn"); |
079e479f | 914 | staticpro (&Qprogn); |
03e130d5 | 915 | |
d67b4f80 | 916 | Qminus = intern_c_string ("-"); |
ec28a64d MB |
917 | staticpro (&Qminus); |
918 | ||
d67b4f80 | 919 | Qplus = intern_c_string ("+"); |
fdb4a38c RS |
920 | staticpro (&Qplus); |
921 | ||
d67b4f80 | 922 | Qhandle_shift_selection = intern_c_string ("handle-shift-selection"); |
9bdb1538 CY |
923 | staticpro (&Qhandle_shift_selection); |
924 | ||
d67b4f80 | 925 | Qcall_interactively = intern_c_string ("call-interactively"); |
ec28a64d MB |
926 | staticpro (&Qcall_interactively); |
927 | ||
d67b4f80 | 928 | Qcommand_debug_status = intern_c_string ("command-debug-status"); |
ec28a64d MB |
929 | staticpro (&Qcommand_debug_status); |
930 | ||
d67b4f80 | 931 | Qenable_recursive_minibuffers = intern_c_string ("enable-recursive-minibuffers"); |
52614803 RS |
932 | staticpro (&Qenable_recursive_minibuffers); |
933 | ||
d67b4f80 | 934 | Qmouse_leave_buffer_hook = intern_c_string ("mouse-leave-buffer-hook"); |
ef2515c0 RS |
935 | staticpro (&Qmouse_leave_buffer_hook); |
936 | ||
1e0c5826 | 937 | DEFVAR_KBOARD ("prefix-arg", Vprefix_arg, |
fdb82f93 PJ |
938 | doc: /* The value of the prefix argument for the next editing command. |
939 | It may be a number, or the symbol `-' for just a minus sign as arg, | |
940 | or a list whose car is a number for just one or more C-u's | |
941 | or nil if no argument has been specified. | |
942 | ||
943 | You cannot examine this variable to find the argument for this command | |
944 | since it has been set to nil by the time you can look. | |
945 | Instead, you should use the variable `current-prefix-arg', although | |
946 | normally commands can get this prefix argument with (interactive "P"). */); | |
8c917bf2 | 947 | |
fe3fbdcc | 948 | DEFVAR_KBOARD ("last-prefix-arg", Vlast_prefix_arg, |
fdb82f93 PJ |
949 | doc: /* The value of the prefix argument for the previous editing command. |
950 | See `prefix-arg' for the meaning of the value. */); | |
fe3fbdcc | 951 | |
8c917bf2 | 952 | DEFVAR_LISP ("current-prefix-arg", &Vcurrent_prefix_arg, |
fdb82f93 PJ |
953 | doc: /* The value of the prefix argument for this editing command. |
954 | It may be a number, or the symbol `-' for just a minus sign as arg, | |
955 | or a list whose car is a number for just one or more C-u's | |
956 | or nil if no argument has been specified. | |
957 | This is what `(interactive \"P\")' returns. */); | |
8c917bf2 KH |
958 | Vcurrent_prefix_arg = Qnil; |
959 | ||
ec28a64d | 960 | DEFVAR_LISP ("command-history", &Vcommand_history, |
fdb82f93 | 961 | doc: /* List of recent commands that read arguments from terminal. |
b014713c EZ |
962 | Each command is represented as a form to evaluate. |
963 | ||
964 | Maximum length of the history list is determined by the value | |
965 | of `history-length', which see. */); | |
ec28a64d MB |
966 | Vcommand_history = Qnil; |
967 | ||
968 | DEFVAR_LISP ("command-debug-status", &Vcommand_debug_status, | |
fdb82f93 PJ |
969 | doc: /* Debugging status of current interactive command. |
970 | Bound each time `call-interactively' is called; | |
971 | may be set by the debugger as a reminder for itself. */); | |
ec28a64d MB |
972 | Vcommand_debug_status = Qnil; |
973 | ||
2ad6c959 | 974 | DEFVAR_LISP ("mark-even-if-inactive", &Vmark_even_if_inactive, |
fdb82f93 PJ |
975 | doc: /* *Non-nil means you can use the mark even when inactive. |
976 | This option makes a difference in Transient Mark mode. | |
977 | When the option is non-nil, deactivation of the mark | |
978 | turns off region highlighting, but commands that use the mark | |
979 | behave as if the mark were still active. */); | |
a2b84f35 | 980 | Vmark_even_if_inactive = Qt; |
9f315aeb | 981 | |
ef2515c0 | 982 | DEFVAR_LISP ("mouse-leave-buffer-hook", &Vmouse_leave_buffer_hook, |
fdb82f93 PJ |
983 | doc: /* Hook to run when about to switch windows with a mouse command. |
984 | Its purpose is to give temporary modes such as Isearch mode | |
985 | a way to turn themselves off when a mouse command switches windows. */); | |
ef2515c0 RS |
986 | Vmouse_leave_buffer_hook = Qnil; |
987 | ||
ec28a64d MB |
988 | defsubr (&Sinteractive); |
989 | defsubr (&Scall_interactively); | |
990 | defsubr (&Sprefix_numeric_value); | |
991 | } | |
ab5796a9 MB |
992 | |
993 | /* arch-tag: a3a7cad7-bcac-42ce-916e-1bd2546ebf37 | |
994 | (do not change this comment) */ |