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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 | |
8892f40b | 32 | #ifdef HAVE_INDEX |
f57e2426 | 33 | extern char *index (const char *, int); |
a847af86 | 34 | #endif |
ec28a64d | 35 | |
c631c234 | 36 | extern Lisp_Object Qcursor_in_echo_area; |
93ed5f9d | 37 | extern Lisp_Object Qfile_directory_p; |
e5a31bbb | 38 | extern Lisp_Object Qonly; |
c631c234 | 39 | |
1e0c5826 | 40 | Lisp_Object Vcurrent_prefix_arg, Qminus, Qplus; |
ec28a64d MB |
41 | Lisp_Object Qcall_interactively; |
42 | Lisp_Object Vcommand_history; | |
43 | ||
225c2157 | 44 | extern Lisp_Object Vhistory_length; |
0605dd79 | 45 | extern Lisp_Object Vthis_original_command, real_this_command; |
d65859c3 | 46 | extern int history_delete_duplicates; |
225c2157 | 47 | |
ec28a64d | 48 | Lisp_Object Vcommand_debug_status, Qcommand_debug_status; |
52614803 | 49 | Lisp_Object Qenable_recursive_minibuffers; |
54b33868 | 50 | extern Lisp_Object Qface, Qminibuffer_prompt; |
ec28a64d | 51 | |
9f315aeb RS |
52 | /* Non-nil means treat the mark as active |
53 | even if mark_active is 0. */ | |
54 | Lisp_Object Vmark_even_if_inactive; | |
55 | ||
84db11d6 | 56 | Lisp_Object Qhandle_shift_selection; |
9bdb1538 | 57 | |
ef2515c0 RS |
58 | Lisp_Object Vmouse_leave_buffer_hook, Qmouse_leave_buffer_hook; |
59 | ||
120d0a23 | 60 | Lisp_Object Qlist, Qlet, Qletx, Qsave_excursion, Qprogn, Qif, Qwhen; |
824977b6 RS |
61 | static Lisp_Object preserved_fns; |
62 | ||
63 | /* Marker used within call-interactively to refer to point. */ | |
64 | static Lisp_Object point_marker; | |
03e130d5 | 65 | |
55b41ef5 CY |
66 | /* String for the prompt text used in Fcall_interactively. */ |
67 | static Lisp_Object callint_message; | |
425b457e | 68 | \f |
ec28a64d MB |
69 | /* ARGSUSED */ |
70 | DEFUN ("interactive", Finteractive, Sinteractive, 0, UNEVALLED, 0, | |
fdb82f93 PJ |
71 | doc: /* Specify a way of parsing arguments for interactive use of a function. |
72 | For example, write | |
f9257eed AM |
73 | (defun foo (arg buf) "Doc string" (interactive "P\\nbbuffer: ") .... ) |
74 | to make ARG be the raw prefix argument, and set BUF to an existing buffer, | |
75 | when `foo' is called as a command. | |
fdb82f93 PJ |
76 | The "call" to `interactive' is actually a declaration rather than a function; |
77 | it tells `call-interactively' how to read arguments | |
78 | to pass to the function. | |
79 | When actually called, `interactive' just returns nil. | |
80 | ||
f9257eed AM |
81 | Usually the argument of `interactive' is a string containing a code letter |
82 | followed optionally by a prompt. (Some code letters do not use I/O to get | |
83 | the argument and do not use prompts.) To get several arguments, concatenate | |
84 | the individual strings, separating them by newline characters. | |
85 | Prompts are passed to format, and may use % escapes to print the | |
fdb82f93 PJ |
86 | arguments that have already been read. |
87 | If the argument is not a string, it is evaluated to get a list of | |
88 | arguments to pass to the function. | |
89 | Just `(interactive)' means pass no args when calling interactively. | |
90 | ||
91 | Code letters available are: | |
92 | a -- Function name: symbol with a function definition. | |
93 | b -- Name of existing buffer. | |
94 | B -- Name of buffer, possibly nonexistent. | |
95 | c -- Character (no input method is used). | |
96 | C -- Command name: symbol with interactive function definition. | |
97 | d -- Value of point as number. Does not do I/O. | |
98 | D -- Directory name. | |
99 | e -- Parametrized event (i.e., one that's a list) that invoked this command. | |
100 | If used more than once, the Nth `e' returns the Nth parameterized event. | |
101 | This skips events that are integers or symbols. | |
102 | f -- Existing file name. | |
103 | F -- Possibly nonexistent file name. | |
75f9fbe8 | 104 | G -- Possibly nonexistent file name, defaulting to just directory name. |
fdb82f93 PJ |
105 | i -- Ignored, i.e. always nil. Does not do I/O. |
106 | k -- Key sequence (downcase the last event if needed to get a definition). | |
107 | K -- Key sequence to be redefined (do not downcase the last event). | |
108 | m -- Value of mark as number. Does not do I/O. | |
109 | M -- Any string. Inherits the current input method. | |
110 | n -- Number read using minibuffer. | |
425b457e | 111 | N -- Numeric prefix arg, or if none, do like code `n'. |
fdb82f93 PJ |
112 | p -- Prefix arg converted to number. Does not do I/O. |
113 | P -- Prefix arg in raw form. Does not do I/O. | |
114 | r -- Region: point and mark as 2 numeric args, smallest first. Does no I/O. | |
115 | s -- Any string. Does not inherit the current input method. | |
116 | S -- Any symbol. | |
39900c4e | 117 | U -- Mouse up event discarded by a previous k or K argument. |
fdb82f93 PJ |
118 | v -- Variable name: symbol that is user-variable-p. |
119 | x -- Lisp expression read but not evaluated. | |
120 | X -- Lisp expression read and evaluated. | |
121 | z -- Coding system. | |
122 | Z -- Coding system, nil if no prefix arg. | |
9bdb1538 CY |
123 | |
124 | In addition, if the string begins with `*', an error is signaled if | |
125 | the buffer is read-only. | |
126 | If the string begins with `@', Emacs searches the key sequence which | |
127 | invoked the command for its first mouse click (or any other event | |
128 | which specifies a window). | |
129 | If the string begins with `^' and `shift-select-mode' is non-nil, | |
2a4f8d3d | 130 | Emacs first calls the function `handle-shift-selection'. |
9bdb1538 CY |
131 | You may use `@', `*', and `^' together. They are processed in the |
132 | order that they appear, before reading any arguments. | |
d88bee5a | 133 | usage: (interactive &optional ARGS) */) |
5842a27b | 134 | (Lisp_Object args) |
ec28a64d MB |
135 | { |
136 | return Qnil; | |
137 | } | |
138 | ||
139 | /* Quotify EXP: if EXP is constant, return it. | |
140 | If EXP is not constant, return (quote EXP). */ | |
141 | Lisp_Object | |
971de7fb | 142 | quotify_arg (register Lisp_Object exp) |
ec28a64d | 143 | { |
6e54b3de | 144 | if (!INTEGERP (exp) && !STRINGP (exp) |
265a9e55 | 145 | && !NILP (exp) && !EQ (exp, Qt)) |
ec28a64d MB |
146 | return Fcons (Qquote, Fcons (exp, Qnil)); |
147 | ||
148 | return exp; | |
149 | } | |
150 | ||
151 | /* Modify EXP by quotifying each element (except the first). */ | |
152 | Lisp_Object | |
971de7fb | 153 | quotify_args (Lisp_Object exp) |
ec28a64d MB |
154 | { |
155 | register Lisp_Object tail; | |
7539e11f KR |
156 | Lisp_Object next; |
157 | for (tail = exp; CONSP (tail); tail = next) | |
ec28a64d | 158 | { |
7539e11f | 159 | next = XCDR (tail); |
f3fbd155 | 160 | XSETCAR (tail, quotify_arg (XCAR (tail))); |
ec28a64d MB |
161 | } |
162 | return exp; | |
163 | } | |
164 | ||
165 | char *callint_argfuns[] | |
166 | = {"", "point", "mark", "region-beginning", "region-end"}; | |
167 | ||
168 | static void | |
971de7fb | 169 | check_mark (int for_region) |
ec28a64d | 170 | { |
86c1cf23 KH |
171 | Lisp_Object tem; |
172 | tem = Fmarker_buffer (current_buffer->mark); | |
265a9e55 | 173 | if (NILP (tem) || (XBUFFER (tem) != current_buffer)) |
f203cf07 RS |
174 | error (for_region ? "The mark is not set now, so there is no region" |
175 | : "The mark is not set now"); | |
6497d2d8 RM |
176 | if (!NILP (Vtransient_mark_mode) && NILP (Vmark_even_if_inactive) |
177 | && NILP (current_buffer->mark_active)) | |
f439241f | 178 | xsignal0 (Qmark_inactive); |
ec28a64d MB |
179 | } |
180 | ||
64ea14d3 RS |
181 | /* If the list of args INPUT was produced with an explicit call to |
182 | `list', look for elements that were computed with | |
183 | (region-beginning) or (region-end), and put those expressions into | |
184 | VALUES instead of the present values. | |
185 | ||
186 | This function doesn't return a value because it modifies elements | |
187 | of VALUES to do its job. */ | |
188 | ||
d1135afc | 189 | static void |
971de7fb | 190 | fix_command (Lisp_Object input, Lisp_Object values) |
d1135afc | 191 | { |
d1135afc JB |
192 | if (CONSP (input)) |
193 | { | |
194 | Lisp_Object car; | |
195 | ||
196 | car = XCAR (input); | |
197 | /* Skip through certain special forms. */ | |
198 | while (EQ (car, Qlet) || EQ (car, Qletx) | |
199 | || EQ (car, Qsave_excursion) | |
200 | || EQ (car, Qprogn)) | |
201 | { | |
202 | while (CONSP (XCDR (input))) | |
203 | input = XCDR (input); | |
204 | input = XCAR (input); | |
205 | if (!CONSP (input)) | |
206 | break; | |
207 | car = XCAR (input); | |
208 | } | |
209 | if (EQ (car, Qlist)) | |
210 | { | |
211 | Lisp_Object intail, valtail; | |
212 | for (intail = Fcdr (input), valtail = values; | |
213 | CONSP (valtail); | |
5dc05618 | 214 | intail = Fcdr (intail), valtail = XCDR (valtail)) |
d1135afc JB |
215 | { |
216 | Lisp_Object elt; | |
217 | elt = Fcar (intail); | |
218 | if (CONSP (elt)) | |
219 | { | |
220 | Lisp_Object presflag, carelt; | |
221 | carelt = Fcar (elt); | |
222 | /* If it is (if X Y), look at Y. */ | |
223 | if (EQ (carelt, Qif) | |
224 | && EQ (Fnthcdr (make_number (3), elt), Qnil)) | |
225 | elt = Fnth (make_number (2), elt); | |
226 | /* If it is (when ... Y), look at Y. */ | |
227 | else if (EQ (carelt, Qwhen)) | |
228 | { | |
229 | while (CONSP (XCDR (elt))) | |
230 | elt = XCDR (elt); | |
231 | elt = Fcar (elt); | |
232 | } | |
233 | ||
234 | /* If the function call we're looking at | |
235 | is a special preserved one, copy the | |
236 | whole expression for this argument. */ | |
237 | if (CONSP (elt)) | |
238 | { | |
239 | presflag = Fmemq (Fcar (elt), preserved_fns); | |
240 | if (!NILP (presflag)) | |
241 | Fsetcar (valtail, Fcar (intail)); | |
242 | } | |
243 | } | |
244 | } | |
245 | } | |
246 | } | |
247 | } | |
ec28a64d | 248 | |
d455db8e | 249 | DEFUN ("call-interactively", Fcall_interactively, Scall_interactively, 1, 3, 0, |
fdb82f93 PJ |
250 | doc: /* Call FUNCTION, reading args according to its interactive calling specs. |
251 | Return the value FUNCTION returns. | |
252 | The function contains a specification of how to do the argument reading. | |
253 | In the case of user-defined functions, this is specified by placing a call | |
254 | to the function `interactive' at the top level of the function body. | |
255 | See `interactive'. | |
256 | ||
257 | Optional second arg RECORD-FLAG non-nil | |
258 | means unconditionally put this command in the command-history. | |
259 | Otherwise, this is done only if an arg is read using the minibuffer. | |
2a95a27c | 260 | |
fdb82f93 | 261 | Optional third arg KEYS, if given, specifies the sequence of events to |
2a95a27c CY |
262 | supply, as a vector, if the command inquires which events were used to |
263 | invoke it. If KEYS is omitted or nil, the return value of | |
264 | `this-command-keys-vector' is used. */) | |
5842a27b | 265 | (Lisp_Object function, Lisp_Object record_flag, Lisp_Object keys) |
ec28a64d MB |
266 | { |
267 | Lisp_Object *args, *visargs; | |
ec28a64d | 268 | Lisp_Object specs; |
079e479f | 269 | Lisp_Object filter_specs; |
ec28a64d | 270 | Lisp_Object teml; |
39900c4e | 271 | Lisp_Object up_event; |
52614803 | 272 | Lisp_Object enable; |
aed13378 | 273 | int speccount = SPECPDL_INDEX (); |
ec28a64d | 274 | |
bc78232c JB |
275 | /* The index of the next element of this_command_keys to examine for |
276 | the 'e' interactive code. */ | |
dbc4e1c1 | 277 | int next_event; |
bc78232c | 278 | |
ec28a64d MB |
279 | Lisp_Object prefix_arg; |
280 | unsigned char *string; | |
281 | unsigned char *tem; | |
63007de2 JB |
282 | |
283 | /* If varies[i] > 0, the i'th argument shouldn't just have its value | |
284 | in this call quoted in the command history. It should be | |
285 | recorded as a call to the function named callint_argfuns[varies[i]]. */ | |
ec28a64d | 286 | int *varies; |
63007de2 | 287 | |
ec28a64d MB |
288 | register int i, j; |
289 | int count, foo; | |
ec28a64d MB |
290 | char prompt1[100]; |
291 | char *tem1; | |
292 | int arg_from_tty = 0; | |
39900c4e | 293 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; |
d455db8e | 294 | int key_count; |
09c886dc | 295 | int record_then_fail = 0; |
d455db8e | 296 | |
0605dd79 RS |
297 | Lisp_Object save_this_command, save_last_command; |
298 | Lisp_Object save_this_original_command, save_real_this_command; | |
299 | ||
300 | save_this_command = Vthis_command; | |
301 | save_this_original_command = Vthis_original_command; | |
302 | save_real_this_command = real_this_command; | |
303 | save_last_command = current_kboard->Vlast_command; | |
304 | ||
d455db8e RS |
305 | if (NILP (keys)) |
306 | keys = this_command_keys, key_count = this_command_key_count; | |
307 | else | |
308 | { | |
b7826503 | 309 | CHECK_VECTOR (keys); |
d455db8e RS |
310 | key_count = XVECTOR (keys)->size; |
311 | } | |
ec28a64d | 312 | |
e5d77022 | 313 | /* Save this now, since use of minibuffer will clobber it. */ |
8c917bf2 | 314 | prefix_arg = Vcurrent_prefix_arg; |
ec28a64d | 315 | |
6e54b3de | 316 | if (SYMBOLP (function)) |
afa4c0f3 | 317 | enable = Fget (function, Qenable_recursive_minibuffers); |
4f895918 GM |
318 | else |
319 | enable = Qnil; | |
52614803 | 320 | |
ec28a64d MB |
321 | specs = Qnil; |
322 | string = 0; | |
079e479f RS |
323 | /* The idea of FILTER_SPECS is to provide away to |
324 | specify how to represent the arguments in command history. | |
325 | The feature is not fully implemented. */ | |
326 | filter_specs = Qnil; | |
ec28a64d | 327 | |
39900c4e KS |
328 | /* If k or K discard an up-event, save it here so it can be retrieved with U */ |
329 | up_event = Qnil; | |
330 | ||
ccb5c14f | 331 | /* Set SPECS to the interactive form, or barf if not interactive. */ |
023accd6 SM |
332 | { |
333 | Lisp_Object form; | |
334 | GCPRO2 (function, prefix_arg); | |
335 | form = Finteractive_form (function); | |
336 | UNGCPRO; | |
337 | if (CONSP (form)) | |
338 | specs = filter_specs = Fcar (XCDR (form)); | |
339 | else | |
340 | wrong_type_argument (Qcommandp, function); | |
341 | } | |
ec28a64d | 342 | |
ccb5c14f | 343 | /* If SPECS is set to a string, use it as an interactive prompt. */ |
6e54b3de | 344 | if (STRINGP (specs)) |
46947372 JB |
345 | { |
346 | /* Make a copy of string so that if a GC relocates specs, | |
347 | `string' will still be valid. */ | |
d5db4077 | 348 | string = (unsigned char *) alloca (SBYTES (specs) + 1); |
72af86bd | 349 | memcpy (string, SDATA (specs), SBYTES (specs) + 1); |
46947372 | 350 | } |
023accd6 | 351 | else |
ec28a64d | 352 | { |
03e130d5 | 353 | Lisp_Object input; |
91a6ba78 | 354 | i = num_input_events; |
03e130d5 RS |
355 | input = specs; |
356 | /* Compute the arg values using the user's expression. */ | |
079e479f | 357 | GCPRO2 (input, filter_specs); |
6bc1abf2 | 358 | specs = Feval (specs); |
079e479f | 359 | UNGCPRO; |
91a6ba78 | 360 | if (i != num_input_events || !NILP (record_flag)) |
03e130d5 RS |
361 | { |
362 | /* We should record this command on the command history. */ | |
f1321dc3 | 363 | Lisp_Object values; |
d65859c3 | 364 | Lisp_Object this_cmd; |
03e130d5 RS |
365 | /* Make a copy of the list of values, for the command history, |
366 | and turn them into things we can eval. */ | |
367 | values = quotify_args (Fcopy_sequence (specs)); | |
120d0a23 | 368 | fix_command (input, values); |
d65859c3 DN |
369 | this_cmd = Fcons (function, values); |
370 | if (history_delete_duplicates) | |
371 | Vcommand_history = Fdelete (this_cmd, Vcommand_history); | |
372 | Vcommand_history = Fcons (this_cmd, Vcommand_history); | |
225c2157 RS |
373 | |
374 | /* Don't keep command history around forever. */ | |
b9f0b172 | 375 | if (INTEGERP (Vhistory_length) && XINT (Vhistory_length) > 0) |
225c2157 RS |
376 | { |
377 | teml = Fnthcdr (Vhistory_length, Vcommand_history); | |
378 | if (CONSP (teml)) | |
f3fbd155 | 379 | XSETCDR (teml, Qnil); |
225c2157 | 380 | } |
03e130d5 | 381 | } |
0605dd79 RS |
382 | |
383 | Vthis_command = save_this_command; | |
384 | Vthis_original_command = save_this_original_command; | |
385 | real_this_command= save_real_this_command; | |
386 | current_kboard->Vlast_command = save_last_command; | |
387 | ||
256c9c3a KL |
388 | temporarily_switch_to_single_kboard (NULL); |
389 | return unbind_to (speccount, apply1 (function, specs)); | |
ec28a64d MB |
390 | } |
391 | ||
392 | /* Here if function specifies a string to control parsing the defaults */ | |
393 | ||
dbc4e1c1 | 394 | /* Set next_event to point to the first event with parameters. */ |
d455db8e | 395 | for (next_event = 0; next_event < key_count; next_event++) |
1b511542 | 396 | if (EVENT_HAS_PARAMETERS (AREF (keys, next_event))) |
dbc4e1c1 | 397 | break; |
09c886dc | 398 | |
42bb2790 | 399 | /* Handle special starting chars `*' and `@'. Also `-'. */ |
e92d107b | 400 | /* Note that `+' is reserved for user extensions. */ |
ec28a64d MB |
401 | while (1) |
402 | { | |
fb775602 | 403 | if (*string == '+') |
e92d107b RS |
404 | error ("`+' is not used in `interactive' for ordinary commands"); |
405 | else if (*string == '*') | |
ec28a64d MB |
406 | { |
407 | string++; | |
265a9e55 | 408 | if (!NILP (current_buffer->read_only)) |
09c886dc RS |
409 | { |
410 | if (!NILP (record_flag)) | |
411 | { | |
412 | unsigned char *p = string; | |
413 | while (*p) | |
414 | { | |
415 | if (! (*p == 'r' || *p == 'p' || *p == 'P' | |
416 | || *p == '\n')) | |
417 | Fbarf_if_buffer_read_only (); | |
418 | p++; | |
419 | } | |
420 | record_then_fail = 1; | |
421 | } | |
422 | else | |
423 | Fbarf_if_buffer_read_only (); | |
424 | } | |
ec28a64d | 425 | } |
42bb2790 RS |
426 | /* Ignore this for semi-compatibility with Lucid. */ |
427 | else if (*string == '-') | |
428 | string++; | |
ec28a64d MB |
429 | else if (*string == '@') |
430 | { | |
c9aa6a41 | 431 | Lisp_Object event, tem; |
dbc4e1c1 | 432 | |
170d3006 | 433 | event = (next_event < key_count |
1b511542 | 434 | ? AREF (keys, next_event) |
170d3006 | 435 | : Qnil); |
dbc4e1c1 | 436 | if (EVENT_HAS_PARAMETERS (event) |
c9aa6a41 RS |
437 | && (tem = XCDR (event), CONSP (tem)) |
438 | && (tem = XCAR (tem), CONSP (tem)) | |
439 | && (tem = XCAR (tem), WINDOWP (tem))) | |
d1fa2e8a | 440 | { |
c9aa6a41 RS |
441 | if (MINI_WINDOW_P (XWINDOW (tem)) |
442 | && ! (minibuf_level > 0 && EQ (tem, minibuf_window))) | |
d1fa2e8a | 443 | error ("Attempt to select inactive minibuffer window"); |
ef2515c0 RS |
444 | |
445 | /* If the current buffer wants to clean up, let it. */ | |
446 | if (!NILP (Vmouse_leave_buffer_hook)) | |
447 | call1 (Vrun_hooks, Qmouse_leave_buffer_hook); | |
448 | ||
c9aa6a41 | 449 | Fselect_window (tem, Qnil); |
d1fa2e8a | 450 | } |
ec28a64d | 451 | string++; |
ec28a64d | 452 | } |
9bdb1538 CY |
453 | else if (*string == '^') |
454 | { | |
84db11d6 | 455 | call0 (Qhandle_shift_selection); |
9bdb1538 CY |
456 | string++; |
457 | } | |
ec28a64d MB |
458 | else break; |
459 | } | |
460 | ||
461 | /* Count the number of arguments the interactive spec would have | |
462 | us give to the function. */ | |
463 | tem = string; | |
e4305426 | 464 | for (j = 0; *tem;) |
ec28a64d MB |
465 | { |
466 | /* 'r' specifications ("point and mark as 2 numeric args") | |
467 | produce *two* arguments. */ | |
e4305426 DK |
468 | if (*tem == 'r') |
469 | j += 2; | |
470 | else | |
471 | j++; | |
ec28a64d MB |
472 | tem = (unsigned char *) index (tem, '\n'); |
473 | if (tem) | |
e4305426 | 474 | ++tem; |
ec28a64d | 475 | else |
e4305426 | 476 | break; |
ec28a64d | 477 | } |
6bc1abf2 | 478 | count = j; |
ec28a64d MB |
479 | |
480 | args = (Lisp_Object *) alloca ((count + 1) * sizeof (Lisp_Object)); | |
481 | visargs = (Lisp_Object *) alloca ((count + 1) * sizeof (Lisp_Object)); | |
ec28a64d MB |
482 | varies = (int *) alloca ((count + 1) * sizeof (int)); |
483 | ||
484 | for (i = 0; i < (count + 1); i++) | |
485 | { | |
486 | args[i] = Qnil; | |
487 | visargs[i] = Qnil; | |
488 | varies[i] = 0; | |
489 | } | |
490 | ||
39900c4e | 491 | GCPRO5 (prefix_arg, function, *args, *visargs, up_event); |
ec28a64d MB |
492 | gcpro3.nvars = (count + 1); |
493 | gcpro4.nvars = (count + 1); | |
494 | ||
52614803 RS |
495 | if (!NILP (enable)) |
496 | specbind (Qenable_recursive_minibuffers, Qt); | |
497 | ||
ec28a64d | 498 | tem = string; |
6bc1abf2 | 499 | for (i = 1; *tem; i++) |
ec28a64d MB |
500 | { |
501 | strncpy (prompt1, tem + 1, sizeof prompt1 - 1); | |
502 | prompt1[sizeof prompt1 - 1] = 0; | |
a847af86 | 503 | tem1 = (char *) index (prompt1, '\n'); |
ec28a64d | 504 | if (tem1) *tem1 = 0; |
55b41ef5 CY |
505 | |
506 | visargs[0] = build_string (prompt1); | |
507 | if (index (prompt1, '%')) | |
508 | callint_message = Fformat (i, visargs); | |
509 | else | |
510 | callint_message = visargs[0]; | |
ec28a64d MB |
511 | |
512 | switch (*tem) | |
513 | { | |
514 | case 'a': /* Symbol defined as a function */ | |
55b41ef5 | 515 | visargs[i] = Fcompleting_read (callint_message, |
ff9cd111 | 516 | Vobarray, Qfboundp, Qt, |
93fb51ae | 517 | Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
518 | /* Passing args[i] directly stimulates compiler bug */ |
519 | teml = visargs[i]; | |
520 | args[i] = Fintern (teml, Qnil); | |
521 | break; | |
522 | ||
523 | case 'b': /* Name of existing buffer */ | |
f03f8f2c JL |
524 | args[i] = Fcurrent_buffer (); |
525 | if (EQ (selected_window, minibuf_window)) | |
526 | args[i] = Fother_buffer (args[i], Qnil, Qnil); | |
527 | args[i] = Fread_buffer (callint_message, args[i], Qt); | |
528 | break; | |
529 | ||
ec28a64d | 530 | case 'B': /* Name of buffer, possibly nonexistent */ |
f03f8f2c JL |
531 | args[i] = Fread_buffer (callint_message, |
532 | Fother_buffer (Fcurrent_buffer (), Qnil, Qnil), | |
533 | Qnil); | |
ec28a64d MB |
534 | break; |
535 | ||
536 | case 'c': /* Character */ | |
54b33868 MR |
537 | /* Prompt in `minibuffer-prompt' face. */ |
538 | Fput_text_property (make_number (0), | |
539 | make_number (SCHARS (callint_message)), | |
540 | Qface, Qminibuffer_prompt, callint_message); | |
55b41ef5 | 541 | args[i] = Fread_char (callint_message, Qnil, Qnil); |
453ed650 | 542 | message1_nolog ((char *) 0); |
ec28a64d MB |
543 | /* Passing args[i] directly stimulates compiler bug */ |
544 | teml = args[i]; | |
545 | visargs[i] = Fchar_to_string (teml); | |
546 | break; | |
547 | ||
548 | case 'C': /* Command: symbol with interactive function */ | |
55b41ef5 | 549 | visargs[i] = Fcompleting_read (callint_message, |
ff9cd111 | 550 | Vobarray, Qcommandp, |
93fb51ae | 551 | Qt, Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
552 | /* Passing args[i] directly stimulates compiler bug */ |
553 | teml = visargs[i]; | |
554 | args[i] = Fintern (teml, Qnil); | |
555 | break; | |
556 | ||
557 | case 'd': /* Value of point. Does not do I/O. */ | |
dc330139 | 558 | set_marker_both (point_marker, Qnil, PT, PT_BYTE); |
824977b6 | 559 | args[i] = point_marker; |
ec28a64d MB |
560 | /* visargs[i] = Qnil; */ |
561 | varies[i] = 1; | |
562 | break; | |
563 | ||
ec28a64d | 564 | case 'D': /* Directory name. */ |
55b41ef5 | 565 | args[i] = Fread_file_name (callint_message, Qnil, |
93ed5f9d KS |
566 | current_buffer->directory, Qlambda, Qnil, |
567 | Qfile_directory_p); | |
ec28a64d MB |
568 | break; |
569 | ||
570 | case 'f': /* Existing file name. */ | |
55b41ef5 | 571 | args[i] = Fread_file_name (callint_message, |
93ed5f9d | 572 | Qnil, Qnil, Qlambda, Qnil, Qnil); |
ec28a64d MB |
573 | break; |
574 | ||
575 | case 'F': /* Possibly nonexistent file name. */ | |
55b41ef5 | 576 | args[i] = Fread_file_name (callint_message, |
93ed5f9d | 577 | Qnil, Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
578 | break; |
579 | ||
75f9fbe8 RS |
580 | case 'G': /* Possibly nonexistent file name, |
581 | default to directory alone. */ | |
55b41ef5 | 582 | args[i] = Fread_file_name (callint_message, |
977f6cfb | 583 | Qnil, Qnil, Qnil, empty_unibyte_string, Qnil); |
75f9fbe8 RS |
584 | break; |
585 | ||
40b2421c KH |
586 | case 'i': /* Ignore an argument -- Does not do I/O */ |
587 | varies[i] = -1; | |
588 | break; | |
589 | ||
1989e7bc | 590 | case 'k': /* Key sequence. */ |
c631c234 | 591 | { |
aed13378 | 592 | int speccount1 = SPECPDL_INDEX (); |
c631c234 | 593 | specbind (Qcursor_in_echo_area, Qt); |
54b33868 MR |
594 | /* Prompt in `minibuffer-prompt' face. */ |
595 | Fput_text_property (make_number (0), | |
596 | make_number (SCHARS (callint_message)), | |
597 | Qface, Qminibuffer_prompt, callint_message); | |
55b41ef5 | 598 | args[i] = Fread_key_sequence (callint_message, |
ad4ac475 | 599 | Qnil, Qnil, Qnil, Qnil); |
c631c234 RS |
600 | unbind_to (speccount1, Qnil); |
601 | teml = args[i]; | |
a1bfe073 | 602 | visargs[i] = Fkey_description (teml, Qnil); |
cdfac812 RS |
603 | |
604 | /* If the key sequence ends with a down-event, | |
605 | discard the following up-event. */ | |
606 | teml = Faref (args[i], make_number (XINT (Flength (args[i])) - 1)); | |
607 | if (CONSP (teml)) | |
70949dac | 608 | teml = XCAR (teml); |
cdfac812 RS |
609 | if (SYMBOLP (teml)) |
610 | { | |
611 | Lisp_Object tem2; | |
612 | ||
613 | teml = Fget (teml, intern ("event-symbol-elements")); | |
4b27f17c AS |
614 | /* Ignore first element, which is the base key. */ |
615 | tem2 = Fmemq (intern ("down"), Fcdr (teml)); | |
cdfac812 | 616 | if (! NILP (tem2)) |
43811b4e | 617 | up_event = Fread_event (Qnil, Qnil, Qnil); |
cdfac812 | 618 | } |
c631c234 | 619 | } |
1989e7bc RS |
620 | break; |
621 | ||
622 | case 'K': /* Key sequence to be defined. */ | |
c631c234 | 623 | { |
aed13378 | 624 | int speccount1 = SPECPDL_INDEX (); |
c631c234 | 625 | specbind (Qcursor_in_echo_area, Qt); |
54b33868 MR |
626 | /* Prompt in `minibuffer-prompt' face. */ |
627 | Fput_text_property (make_number (0), | |
628 | make_number (SCHARS (callint_message)), | |
629 | Qface, Qminibuffer_prompt, callint_message); | |
55b41ef5 | 630 | args[i] = Fread_key_sequence (callint_message, |
ad4ac475 | 631 | Qnil, Qt, Qnil, Qnil); |
c631c234 | 632 | teml = args[i]; |
a1bfe073 | 633 | visargs[i] = Fkey_description (teml, Qnil); |
c631c234 | 634 | unbind_to (speccount1, Qnil); |
cdfac812 RS |
635 | |
636 | /* If the key sequence ends with a down-event, | |
637 | discard the following up-event. */ | |
638 | teml = Faref (args[i], make_number (XINT (Flength (args[i])) - 1)); | |
639 | if (CONSP (teml)) | |
70949dac | 640 | teml = XCAR (teml); |
cdfac812 RS |
641 | if (SYMBOLP (teml)) |
642 | { | |
643 | Lisp_Object tem2; | |
644 | ||
645 | teml = Fget (teml, intern ("event-symbol-elements")); | |
4b27f17c AS |
646 | /* Ignore first element, which is the base key. */ |
647 | tem2 = Fmemq (intern ("down"), Fcdr (teml)); | |
cdfac812 | 648 | if (! NILP (tem2)) |
43811b4e | 649 | up_event = Fread_event (Qnil, Qnil, Qnil); |
cdfac812 | 650 | } |
c631c234 | 651 | } |
ec28a64d MB |
652 | break; |
653 | ||
39900c4e KS |
654 | case 'U': /* Up event from last k or K */ |
655 | if (!NILP (up_event)) | |
656 | { | |
657 | args[i] = Fmake_vector (make_number (1), up_event); | |
658 | up_event = Qnil; | |
659 | teml = args[i]; | |
660 | visargs[i] = Fkey_description (teml, Qnil); | |
661 | } | |
662 | break; | |
663 | ||
bc78232c | 664 | case 'e': /* The invoking event. */ |
d455db8e | 665 | if (next_event >= key_count) |
bc78232c | 666 | error ("%s must be bound to an event with parameters", |
6e54b3de | 667 | (SYMBOLP (function) |
d5db4077 | 668 | ? (char *) SDATA (SYMBOL_NAME (function)) |
bc78232c | 669 | : "command")); |
1b511542 SM |
670 | args[i] = AREF (keys, next_event); |
671 | next_event++; | |
e5d77022 | 672 | varies[i] = -1; |
dbc4e1c1 JB |
673 | |
674 | /* Find the next parameterized event. */ | |
d455db8e | 675 | while (next_event < key_count |
1b511542 | 676 | && !(EVENT_HAS_PARAMETERS (AREF (keys, next_event)))) |
dbc4e1c1 JB |
677 | next_event++; |
678 | ||
63007de2 JB |
679 | break; |
680 | ||
ec28a64d | 681 | case 'm': /* Value of mark. Does not do I/O. */ |
f203cf07 | 682 | check_mark (0); |
ec28a64d | 683 | /* visargs[i] = Qnil; */ |
824977b6 | 684 | args[i] = current_buffer->mark; |
ec28a64d MB |
685 | varies[i] = 2; |
686 | break; | |
687 | ||
93fb51ae KH |
688 | case 'M': /* String read via minibuffer with |
689 | inheriting the current input method. */ | |
55b41ef5 | 690 | args[i] = Fread_string (callint_message, |
93fb51ae KH |
691 | Qnil, Qnil, Qnil, Qt); |
692 | break; | |
693 | ||
425b457e | 694 | case 'N': /* Prefix arg as number, else number from minibuffer */ |
265a9e55 | 695 | if (!NILP (prefix_arg)) |
ec28a64d MB |
696 | goto have_prefix_arg; |
697 | case 'n': /* Read number from minibuffer. */ | |
f0490a0b RS |
698 | { |
699 | int first = 1; | |
700 | do | |
701 | { | |
702 | Lisp_Object tem; | |
e7c4e229 | 703 | if (! first) |
f0490a0b RS |
704 | { |
705 | message ("Please enter a number."); | |
e7c4e229 | 706 | sit_for (make_number (1), 0, 0); |
f0490a0b RS |
707 | } |
708 | first = 0; | |
709 | ||
55b41ef5 | 710 | tem = Fread_from_minibuffer (callint_message, |
93fb51ae | 711 | Qnil, Qnil, Qnil, Qnil, Qnil, |
ae4c2a3b | 712 | Qnil); |
d5db4077 | 713 | if (! STRINGP (tem) || SCHARS (tem) == 0) |
f0490a0b RS |
714 | args[i] = Qnil; |
715 | else | |
716 | args[i] = Fread (tem); | |
717 | } | |
718 | while (! NUMBERP (args[i])); | |
719 | } | |
55b41ef5 | 720 | visargs[i] = args[i]; |
ec28a64d MB |
721 | break; |
722 | ||
723 | case 'P': /* Prefix arg in raw form. Does no I/O. */ | |
ec28a64d MB |
724 | args[i] = prefix_arg; |
725 | /* visargs[i] = Qnil; */ | |
726 | varies[i] = -1; | |
727 | break; | |
728 | ||
729 | case 'p': /* Prefix arg converted to number. No I/O. */ | |
71eda2d5 | 730 | have_prefix_arg: |
ec28a64d MB |
731 | args[i] = Fprefix_numeric_value (prefix_arg); |
732 | /* visargs[i] = Qnil; */ | |
733 | varies[i] = -1; | |
734 | break; | |
735 | ||
736 | case 'r': /* Region, point and mark as 2 args. */ | |
f203cf07 | 737 | check_mark (1); |
dc330139 | 738 | set_marker_both (point_marker, Qnil, PT, PT_BYTE); |
ec28a64d MB |
739 | /* visargs[i+1] = Qnil; */ |
740 | foo = marker_position (current_buffer->mark); | |
741 | /* visargs[i] = Qnil; */ | |
6ec8bbd2 | 742 | args[i] = PT < foo ? point_marker : current_buffer->mark; |
ec28a64d | 743 | varies[i] = 3; |
6ec8bbd2 | 744 | args[++i] = PT > foo ? point_marker : current_buffer->mark; |
ec28a64d MB |
745 | varies[i] = 4; |
746 | break; | |
747 | ||
93fb51ae KH |
748 | case 's': /* String read via minibuffer without |
749 | inheriting the current input method. */ | |
55b41ef5 | 750 | args[i] = Fread_string (callint_message, |
93fb51ae | 751 | Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
752 | break; |
753 | ||
754 | case 'S': /* Any symbol. */ | |
55b41ef5 | 755 | visargs[i] = Fread_string (callint_message, |
93fb51ae | 756 | Qnil, Qnil, Qnil, Qnil); |
ec28a64d MB |
757 | /* Passing args[i] directly stimulates compiler bug */ |
758 | teml = visargs[i]; | |
759 | args[i] = Fintern (teml, Qnil); | |
760 | break; | |
761 | ||
762 | case 'v': /* Variable name: symbol that is | |
763 | user-variable-p. */ | |
55b41ef5 | 764 | args[i] = Fread_variable (callint_message, Qnil); |
ec28a64d MB |
765 | visargs[i] = last_minibuf_string; |
766 | break; | |
767 | ||
768 | case 'x': /* Lisp expression read but not evaluated */ | |
55b41ef5 | 769 | args[i] = Fread_minibuffer (callint_message, Qnil); |
ec28a64d MB |
770 | visargs[i] = last_minibuf_string; |
771 | break; | |
772 | ||
773 | case 'X': /* Lisp expression read and evaluated */ | |
55b41ef5 | 774 | args[i] = Feval_minibuffer (callint_message, Qnil); |
ec28a64d MB |
775 | visargs[i] = last_minibuf_string; |
776 | break; | |
777 | ||
40b2421c KH |
778 | case 'Z': /* Coding-system symbol, or ignore the |
779 | argument if no prefix */ | |
780 | if (NILP (prefix_arg)) | |
781 | { | |
782 | args[i] = Qnil; | |
783 | varies[i] = -1; | |
784 | } | |
177c0ea7 | 785 | else |
40b2421c KH |
786 | { |
787 | args[i] | |
55b41ef5 | 788 | = Fread_non_nil_coding_system (callint_message); |
40b2421c KH |
789 | visargs[i] = last_minibuf_string; |
790 | } | |
791 | break; | |
792 | ||
793 | case 'z': /* Coding-system symbol or nil */ | |
55b41ef5 | 794 | args[i] = Fread_coding_system (callint_message, Qnil); |
40b2421c KH |
795 | visargs[i] = last_minibuf_string; |
796 | break; | |
797 | ||
e92d107b RS |
798 | /* We have a case for `+' so we get an error |
799 | if anyone tries to define one here. */ | |
800 | case '+': | |
ec28a64d | 801 | default: |
e92d107b | 802 | error ("Invalid control letter `%c' (%03o) in interactive calling string", |
ec28a64d MB |
803 | *tem, *tem); |
804 | } | |
805 | ||
806 | if (varies[i] == 0) | |
807 | arg_from_tty = 1; | |
808 | ||
6e54b3de | 809 | if (NILP (visargs[i]) && STRINGP (args[i])) |
ec28a64d MB |
810 | visargs[i] = args[i]; |
811 | ||
812 | tem = (unsigned char *) index (tem, '\n'); | |
813 | if (tem) tem++; | |
814 | else tem = (unsigned char *) ""; | |
815 | } | |
52614803 | 816 | unbind_to (speccount, Qnil); |
ec28a64d MB |
817 | |
818 | QUIT; | |
819 | ||
820 | args[0] = function; | |
821 | ||
7868a977 | 822 | if (arg_from_tty || !NILP (record_flag)) |
ec28a64d MB |
823 | { |
824 | visargs[0] = function; | |
63007de2 | 825 | for (i = 1; i < count + 1; i++) |
824977b6 RS |
826 | { |
827 | if (varies[i] > 0) | |
828 | visargs[i] = Fcons (intern (callint_argfuns[varies[i]]), Qnil); | |
829 | else | |
830 | visargs[i] = quotify_arg (args[i]); | |
831 | } | |
ec28a64d MB |
832 | Vcommand_history = Fcons (Flist (count + 1, visargs), |
833 | Vcommand_history); | |
225c2157 | 834 | /* Don't keep command history around forever. */ |
b9f0b172 | 835 | if (INTEGERP (Vhistory_length) && XINT (Vhistory_length) > 0) |
225c2157 RS |
836 | { |
837 | teml = Fnthcdr (Vhistory_length, Vcommand_history); | |
838 | if (CONSP (teml)) | |
f3fbd155 | 839 | XSETCDR (teml, Qnil); |
225c2157 | 840 | } |
ec28a64d MB |
841 | } |
842 | ||
824977b6 RS |
843 | /* If we used a marker to hold point, mark, or an end of the region, |
844 | temporarily, convert it to an integer now. */ | |
f4c8ded2 | 845 | for (i = 1; i <= count; i++) |
824977b6 RS |
846 | if (varies[i] >= 1 && varies[i] <= 4) |
847 | XSETINT (args[i], marker_position (args[i])); | |
848 | ||
09c886dc RS |
849 | if (record_then_fail) |
850 | Fbarf_if_buffer_read_only (); | |
851 | ||
0605dd79 RS |
852 | Vthis_command = save_this_command; |
853 | Vthis_original_command = save_this_original_command; | |
854 | real_this_command= save_real_this_command; | |
855 | current_kboard->Vlast_command = save_last_command; | |
856 | ||
ec28a64d MB |
857 | { |
858 | Lisp_Object val; | |
ec28a64d MB |
859 | specbind (Qcommand_debug_status, Qnil); |
860 | ||
b3e6f69c | 861 | temporarily_switch_to_single_kboard (NULL); |
ec28a64d MB |
862 | val = Ffuncall (count + 1, args); |
863 | UNGCPRO; | |
864 | return unbind_to (speccount, val); | |
865 | } | |
177c0ea7 | 866 | } |
ec28a64d MB |
867 | |
868 | DEFUN ("prefix-numeric-value", Fprefix_numeric_value, Sprefix_numeric_value, | |
fdb82f93 PJ |
869 | 1, 1, 0, |
870 | doc: /* Return numeric meaning of raw prefix argument RAW. | |
871 | A raw prefix argument is what you get from `(interactive "P")'. | |
872 | Its numeric meaning is what you would get from `(interactive "p")'. */) | |
5842a27b | 873 | (Lisp_Object raw) |
ec28a64d MB |
874 | { |
875 | Lisp_Object val; | |
177c0ea7 | 876 | |
265a9e55 | 877 | if (NILP (raw)) |
acab6442 | 878 | XSETFASTINT (val, 1); |
fd5285f3 | 879 | else if (EQ (raw, Qminus)) |
ec28a64d | 880 | XSETINT (val, -1); |
70949dac KR |
881 | else if (CONSP (raw) && INTEGERP (XCAR (raw))) |
882 | XSETINT (val, XINT (XCAR (raw))); | |
6e54b3de | 883 | else if (INTEGERP (raw)) |
ec28a64d MB |
884 | val = raw; |
885 | else | |
acab6442 | 886 | XSETFASTINT (val, 1); |
ec28a64d MB |
887 | |
888 | return val; | |
889 | } | |
890 | ||
dfcf069d | 891 | void |
971de7fb | 892 | syms_of_callint (void) |
ec28a64d | 893 | { |
824977b6 RS |
894 | point_marker = Fmake_marker (); |
895 | staticpro (&point_marker); | |
896 | ||
55b41ef5 CY |
897 | callint_message = Qnil; |
898 | staticpro (&callint_message); | |
899 | ||
d67b4f80 DN |
900 | preserved_fns = pure_cons (intern_c_string ("region-beginning"), |
901 | pure_cons (intern_c_string ("region-end"), | |
902 | pure_cons (intern_c_string ("point"), | |
903 | pure_cons (intern_c_string ("mark"), Qnil)))); | |
03e130d5 | 904 | |
d67b4f80 | 905 | Qlist = intern_c_string ("list"); |
03e130d5 | 906 | staticpro (&Qlist); |
d67b4f80 | 907 | Qlet = intern_c_string ("let"); |
8450690a | 908 | staticpro (&Qlet); |
d67b4f80 | 909 | Qif = intern_c_string ("if"); |
120d0a23 | 910 | staticpro (&Qif); |
d67b4f80 | 911 | Qwhen = intern_c_string ("when"); |
120d0a23 | 912 | staticpro (&Qwhen); |
d67b4f80 | 913 | Qletx = intern_c_string ("let*"); |
8450690a | 914 | staticpro (&Qletx); |
d67b4f80 | 915 | Qsave_excursion = intern_c_string ("save-excursion"); |
8450690a | 916 | staticpro (&Qsave_excursion); |
d67b4f80 | 917 | Qprogn = intern_c_string ("progn"); |
079e479f | 918 | staticpro (&Qprogn); |
03e130d5 | 919 | |
d67b4f80 | 920 | Qminus = intern_c_string ("-"); |
ec28a64d MB |
921 | staticpro (&Qminus); |
922 | ||
d67b4f80 | 923 | Qplus = intern_c_string ("+"); |
fdb4a38c RS |
924 | staticpro (&Qplus); |
925 | ||
d67b4f80 | 926 | Qhandle_shift_selection = intern_c_string ("handle-shift-selection"); |
9bdb1538 CY |
927 | staticpro (&Qhandle_shift_selection); |
928 | ||
d67b4f80 | 929 | Qcall_interactively = intern_c_string ("call-interactively"); |
ec28a64d MB |
930 | staticpro (&Qcall_interactively); |
931 | ||
d67b4f80 | 932 | Qcommand_debug_status = intern_c_string ("command-debug-status"); |
ec28a64d MB |
933 | staticpro (&Qcommand_debug_status); |
934 | ||
d67b4f80 | 935 | Qenable_recursive_minibuffers = intern_c_string ("enable-recursive-minibuffers"); |
52614803 RS |
936 | staticpro (&Qenable_recursive_minibuffers); |
937 | ||
d67b4f80 | 938 | Qmouse_leave_buffer_hook = intern_c_string ("mouse-leave-buffer-hook"); |
ef2515c0 RS |
939 | staticpro (&Qmouse_leave_buffer_hook); |
940 | ||
1e0c5826 | 941 | DEFVAR_KBOARD ("prefix-arg", Vprefix_arg, |
fdb82f93 PJ |
942 | doc: /* The value of the prefix argument for the next editing command. |
943 | It may be a number, or the symbol `-' for just a minus sign as arg, | |
944 | or a list whose car is a number for just one or more C-u's | |
945 | or nil if no argument has been specified. | |
946 | ||
947 | You cannot examine this variable to find the argument for this command | |
948 | since it has been set to nil by the time you can look. | |
949 | Instead, you should use the variable `current-prefix-arg', although | |
950 | normally commands can get this prefix argument with (interactive "P"). */); | |
8c917bf2 | 951 | |
fe3fbdcc | 952 | DEFVAR_KBOARD ("last-prefix-arg", Vlast_prefix_arg, |
fdb82f93 PJ |
953 | doc: /* The value of the prefix argument for the previous editing command. |
954 | See `prefix-arg' for the meaning of the value. */); | |
fe3fbdcc | 955 | |
8c917bf2 | 956 | DEFVAR_LISP ("current-prefix-arg", &Vcurrent_prefix_arg, |
fdb82f93 PJ |
957 | doc: /* The value of the prefix argument for this editing command. |
958 | It may be a number, or the symbol `-' for just a minus sign as arg, | |
959 | or a list whose car is a number for just one or more C-u's | |
960 | or nil if no argument has been specified. | |
961 | This is what `(interactive \"P\")' returns. */); | |
8c917bf2 KH |
962 | Vcurrent_prefix_arg = Qnil; |
963 | ||
ec28a64d | 964 | DEFVAR_LISP ("command-history", &Vcommand_history, |
fdb82f93 | 965 | doc: /* List of recent commands that read arguments from terminal. |
b014713c EZ |
966 | Each command is represented as a form to evaluate. |
967 | ||
968 | Maximum length of the history list is determined by the value | |
969 | of `history-length', which see. */); | |
ec28a64d MB |
970 | Vcommand_history = Qnil; |
971 | ||
972 | DEFVAR_LISP ("command-debug-status", &Vcommand_debug_status, | |
fdb82f93 PJ |
973 | doc: /* Debugging status of current interactive command. |
974 | Bound each time `call-interactively' is called; | |
975 | may be set by the debugger as a reminder for itself. */); | |
ec28a64d MB |
976 | Vcommand_debug_status = Qnil; |
977 | ||
2ad6c959 | 978 | DEFVAR_LISP ("mark-even-if-inactive", &Vmark_even_if_inactive, |
fdb82f93 PJ |
979 | doc: /* *Non-nil means you can use the mark even when inactive. |
980 | This option makes a difference in Transient Mark mode. | |
981 | When the option is non-nil, deactivation of the mark | |
982 | turns off region highlighting, but commands that use the mark | |
983 | behave as if the mark were still active. */); | |
a2b84f35 | 984 | Vmark_even_if_inactive = Qt; |
9f315aeb | 985 | |
ef2515c0 | 986 | DEFVAR_LISP ("mouse-leave-buffer-hook", &Vmouse_leave_buffer_hook, |
fdb82f93 PJ |
987 | doc: /* Hook to run when about to switch windows with a mouse command. |
988 | Its purpose is to give temporary modes such as Isearch mode | |
989 | a way to turn themselves off when a mouse command switches windows. */); | |
ef2515c0 RS |
990 | Vmouse_leave_buffer_hook = Qnil; |
991 | ||
ec28a64d MB |
992 | defsubr (&Sinteractive); |
993 | defsubr (&Scall_interactively); | |
994 | defsubr (&Sprefix_numeric_value); | |
995 | } | |
ab5796a9 MB |
996 | |
997 | /* arch-tag: a3a7cad7-bcac-42ce-916e-1bd2546ebf37 | |
998 | (do not change this comment) */ |