Commit | Line | Data |
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7921925c | 1 | /* Primitive operations on Lisp data types for GNU Emacs Lisp interpreter. |
f52a3ca3 | 2 | Copyright (C) 1985,86,88,93,94,95,97,98,99, 2000, 2001, 03, 2004 |
7a283f36 | 3 | Free Software Foundation, Inc. |
7921925c JB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
7c938215 | 9 | the Free Software Foundation; either version 2, or (at your option) |
7921925c JB |
10 | any later version. |
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 | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
7921925c JB |
21 | |
22 | ||
18160b98 | 23 | #include <config.h> |
68c45bf0 | 24 | #include <signal.h> |
dd8daec5 | 25 | #include <stdio.h> |
7921925c | 26 | #include "lisp.h" |
29eab336 | 27 | #include "puresize.h" |
8313c4e7 | 28 | #include "charset.h" |
7921925c | 29 | #include "buffer.h" |
077d751f | 30 | #include "keyboard.h" |
b0c2d1c6 | 31 | #include "frame.h" |
a44804c2 | 32 | #include "syssignal.h" |
fb8e9847 | 33 | |
93b91208 | 34 | #ifdef STDC_HEADERS |
2f261542 | 35 | #include <float.h> |
93b91208 | 36 | #endif |
defa77b5 | 37 | |
ad8d56b9 PE |
38 | /* If IEEE_FLOATING_POINT isn't defined, default it from FLT_*. */ |
39 | #ifndef IEEE_FLOATING_POINT | |
40 | #if (FLT_RADIX == 2 && FLT_MANT_DIG == 24 \ | |
41 | && FLT_MIN_EXP == -125 && FLT_MAX_EXP == 128) | |
42 | #define IEEE_FLOATING_POINT 1 | |
43 | #else | |
44 | #define IEEE_FLOATING_POINT 0 | |
45 | #endif | |
46 | #endif | |
47 | ||
defa77b5 RS |
48 | /* Work around a problem that happens because math.h on hpux 7 |
49 | defines two static variables--which, in Emacs, are not really static, | |
50 | because `static' is defined as nothing. The problem is that they are | |
51 | here, in floatfns.c, and in lread.c. | |
52 | These macros prevent the name conflict. */ | |
53 | #if defined (HPUX) && !defined (HPUX8) | |
54 | #define _MAXLDBL data_c_maxldbl | |
55 | #define _NMAXLDBL data_c_nmaxldbl | |
56 | #endif | |
57 | ||
7921925c | 58 | #include <math.h> |
7921925c | 59 | |
024ec58f BF |
60 | #if !defined (atof) |
61 | extern double atof (); | |
62 | #endif /* !atof */ | |
63 | ||
7921925c JB |
64 | Lisp_Object Qnil, Qt, Qquote, Qlambda, Qsubr, Qunbound; |
65 | Lisp_Object Qerror_conditions, Qerror_message, Qtop_level; | |
66 | Lisp_Object Qerror, Qquit, Qwrong_type_argument, Qargs_out_of_range; | |
ffd56f97 | 67 | Lisp_Object Qvoid_variable, Qvoid_function, Qcyclic_function_indirection; |
13d95cc0 | 68 | Lisp_Object Qcyclic_variable_indirection, Qcircular_list; |
7921925c JB |
69 | Lisp_Object Qsetting_constant, Qinvalid_read_syntax; |
70 | Lisp_Object Qinvalid_function, Qwrong_number_of_arguments, Qno_catch; | |
3b8819d6 | 71 | Lisp_Object Qend_of_file, Qarith_error, Qmark_inactive; |
7921925c | 72 | Lisp_Object Qbeginning_of_buffer, Qend_of_buffer, Qbuffer_read_only; |
8f9f49d7 | 73 | Lisp_Object Qtext_read_only; |
aae13d36 | 74 | |
8e86942b | 75 | Lisp_Object Qintegerp, Qnatnump, Qwholenump, Qsymbolp, Qlistp, Qconsp; |
7921925c JB |
76 | Lisp_Object Qstringp, Qarrayp, Qsequencep, Qbufferp; |
77 | Lisp_Object Qchar_or_string_p, Qmarkerp, Qinteger_or_marker_p, Qvectorp; | |
cda9b832 | 78 | Lisp_Object Qbuffer_or_string_p, Qkeywordp; |
7921925c | 79 | Lisp_Object Qboundp, Qfboundp; |
7f0edce7 | 80 | Lisp_Object Qchar_table_p, Qvector_or_char_table_p; |
39bcc759 | 81 | |
7921925c | 82 | Lisp_Object Qcdr; |
c1307a23 | 83 | Lisp_Object Qad_advice_info, Qad_activate_internal; |
7921925c | 84 | |
6315e761 RS |
85 | Lisp_Object Qrange_error, Qdomain_error, Qsingularity_error; |
86 | Lisp_Object Qoverflow_error, Qunderflow_error; | |
87 | ||
464f8898 | 88 | Lisp_Object Qfloatp; |
7921925c | 89 | Lisp_Object Qnumberp, Qnumber_or_marker_p; |
7921925c | 90 | |
aae13d36 LH |
91 | Lisp_Object Qinteger; |
92 | static Lisp_Object Qsymbol, Qstring, Qcons, Qmarker, Qoverlay; | |
8313c4e7 KH |
93 | static Lisp_Object Qfloat, Qwindow_configuration, Qwindow; |
94 | Lisp_Object Qprocess; | |
39bcc759 | 95 | static Lisp_Object Qcompiled_function, Qbuffer, Qframe, Qvector; |
81dc5de5 | 96 | static Lisp_Object Qchar_table, Qbool_vector, Qhash_table; |
6f0e897f | 97 | static Lisp_Object Qsubrp, Qmany, Qunevalled; |
39bcc759 | 98 | |
7a283f36 | 99 | static Lisp_Object swap_in_symval_forwarding P_ ((Lisp_Object, Lisp_Object)); |
d02eeab3 | 100 | |
9d113d9d | 101 | Lisp_Object Vmost_positive_fixnum, Vmost_negative_fixnum; |
e6190b11 | 102 | |
13d95cc0 GM |
103 | |
104 | void | |
105 | circular_list_error (list) | |
106 | Lisp_Object list; | |
107 | { | |
108 | Fsignal (Qcircular_list, list); | |
109 | } | |
110 | ||
111 | ||
7921925c JB |
112 | Lisp_Object |
113 | wrong_type_argument (predicate, value) | |
114 | register Lisp_Object predicate, value; | |
115 | { | |
116 | register Lisp_Object tem; | |
117 | do | |
118 | { | |
e1351ff7 RS |
119 | /* If VALUE is not even a valid Lisp object, abort here |
120 | where we can get a backtrace showing where it came from. */ | |
04be3993 | 121 | if ((unsigned int) XGCTYPE (value) >= Lisp_Type_Limit) |
e1351ff7 RS |
122 | abort (); |
123 | ||
7921925c JB |
124 | value = Fsignal (Qwrong_type_argument, Fcons (predicate, Fcons (value, Qnil))); |
125 | tem = call1 (predicate, value); | |
126 | } | |
a33ef3ab | 127 | while (NILP (tem)); |
7921925c JB |
128 | return value; |
129 | } | |
130 | ||
dfcf069d | 131 | void |
7921925c JB |
132 | pure_write_error () |
133 | { | |
134 | error ("Attempt to modify read-only object"); | |
135 | } | |
136 | ||
137 | void | |
138 | args_out_of_range (a1, a2) | |
139 | Lisp_Object a1, a2; | |
140 | { | |
141 | while (1) | |
142 | Fsignal (Qargs_out_of_range, Fcons (a1, Fcons (a2, Qnil))); | |
143 | } | |
144 | ||
145 | void | |
146 | args_out_of_range_3 (a1, a2, a3) | |
147 | Lisp_Object a1, a2, a3; | |
148 | { | |
149 | while (1) | |
150 | Fsignal (Qargs_out_of_range, Fcons (a1, Fcons (a2, Fcons (a3, Qnil)))); | |
151 | } | |
152 | ||
7921925c JB |
153 | /* On some machines, XINT needs a temporary location. |
154 | Here it is, in case it is needed. */ | |
155 | ||
156 | int sign_extend_temp; | |
157 | ||
158 | /* On a few machines, XINT can only be done by calling this. */ | |
159 | ||
160 | int | |
161 | sign_extend_lisp_int (num) | |
a0ed95ea | 162 | EMACS_INT num; |
7921925c | 163 | { |
a0ed95ea RS |
164 | if (num & (((EMACS_INT) 1) << (VALBITS - 1))) |
165 | return num | (((EMACS_INT) (-1)) << VALBITS); | |
7921925c | 166 | else |
a0ed95ea | 167 | return num & ((((EMACS_INT) 1) << VALBITS) - 1); |
7921925c JB |
168 | } |
169 | \f | |
170 | /* Data type predicates */ | |
171 | ||
172 | DEFUN ("eq", Feq, Seq, 2, 2, 0, | |
8c1a1077 PJ |
173 | doc: /* Return t if the two args are the same Lisp object. */) |
174 | (obj1, obj2) | |
7921925c JB |
175 | Lisp_Object obj1, obj2; |
176 | { | |
177 | if (EQ (obj1, obj2)) | |
178 | return Qt; | |
179 | return Qnil; | |
180 | } | |
181 | ||
8c1a1077 PJ |
182 | DEFUN ("null", Fnull, Snull, 1, 1, 0, |
183 | doc: /* Return t if OBJECT is nil. */) | |
184 | (object) | |
39bcc759 | 185 | Lisp_Object object; |
7921925c | 186 | { |
39bcc759 | 187 | if (NILP (object)) |
7921925c JB |
188 | return Qt; |
189 | return Qnil; | |
190 | } | |
191 | ||
39bcc759 | 192 | DEFUN ("type-of", Ftype_of, Stype_of, 1, 1, 0, |
8c1a1077 PJ |
193 | doc: /* Return a symbol representing the type of OBJECT. |
194 | The symbol returned names the object's basic type; | |
195 | for example, (type-of 1) returns `integer'. */) | |
196 | (object) | |
39bcc759 RS |
197 | Lisp_Object object; |
198 | { | |
199 | switch (XGCTYPE (object)) | |
200 | { | |
201 | case Lisp_Int: | |
202 | return Qinteger; | |
203 | ||
204 | case Lisp_Symbol: | |
205 | return Qsymbol; | |
206 | ||
207 | case Lisp_String: | |
208 | return Qstring; | |
209 | ||
210 | case Lisp_Cons: | |
211 | return Qcons; | |
212 | ||
213 | case Lisp_Misc: | |
324a6eef | 214 | switch (XMISCTYPE (object)) |
39bcc759 RS |
215 | { |
216 | case Lisp_Misc_Marker: | |
217 | return Qmarker; | |
218 | case Lisp_Misc_Overlay: | |
219 | return Qoverlay; | |
220 | case Lisp_Misc_Float: | |
221 | return Qfloat; | |
222 | } | |
223 | abort (); | |
224 | ||
225 | case Lisp_Vectorlike: | |
226 | if (GC_WINDOW_CONFIGURATIONP (object)) | |
227 | return Qwindow_configuration; | |
228 | if (GC_PROCESSP (object)) | |
229 | return Qprocess; | |
230 | if (GC_WINDOWP (object)) | |
231 | return Qwindow; | |
232 | if (GC_SUBRP (object)) | |
233 | return Qsubr; | |
234 | if (GC_COMPILEDP (object)) | |
235 | return Qcompiled_function; | |
236 | if (GC_BUFFERP (object)) | |
237 | return Qbuffer; | |
fc67d5be KH |
238 | if (GC_CHAR_TABLE_P (object)) |
239 | return Qchar_table; | |
240 | if (GC_BOOL_VECTOR_P (object)) | |
241 | return Qbool_vector; | |
39bcc759 RS |
242 | if (GC_FRAMEP (object)) |
243 | return Qframe; | |
81dc5de5 GM |
244 | if (GC_HASH_TABLE_P (object)) |
245 | return Qhash_table; | |
39bcc759 RS |
246 | return Qvector; |
247 | ||
39bcc759 RS |
248 | case Lisp_Float: |
249 | return Qfloat; | |
39bcc759 RS |
250 | |
251 | default: | |
252 | abort (); | |
253 | } | |
254 | } | |
255 | ||
8c1a1077 PJ |
256 | DEFUN ("consp", Fconsp, Sconsp, 1, 1, 0, |
257 | doc: /* Return t if OBJECT is a cons cell. */) | |
258 | (object) | |
39bcc759 | 259 | Lisp_Object object; |
7921925c | 260 | { |
39bcc759 | 261 | if (CONSP (object)) |
7921925c JB |
262 | return Qt; |
263 | return Qnil; | |
264 | } | |
265 | ||
25638b07 | 266 | DEFUN ("atom", Fatom, Satom, 1, 1, 0, |
8c1a1077 PJ |
267 | doc: /* Return t if OBJECT is not a cons cell. This includes nil. */) |
268 | (object) | |
39bcc759 | 269 | Lisp_Object object; |
7921925c | 270 | { |
39bcc759 | 271 | if (CONSP (object)) |
7921925c JB |
272 | return Qnil; |
273 | return Qt; | |
274 | } | |
275 | ||
25638b07 | 276 | DEFUN ("listp", Flistp, Slistp, 1, 1, 0, |
8c1a1077 PJ |
277 | doc: /* Return t if OBJECT is a list. This includes nil. */) |
278 | (object) | |
39bcc759 | 279 | Lisp_Object object; |
7921925c | 280 | { |
39bcc759 | 281 | if (CONSP (object) || NILP (object)) |
7921925c JB |
282 | return Qt; |
283 | return Qnil; | |
284 | } | |
285 | ||
25638b07 | 286 | DEFUN ("nlistp", Fnlistp, Snlistp, 1, 1, 0, |
8c1a1077 PJ |
287 | doc: /* Return t if OBJECT is not a list. Lists include nil. */) |
288 | (object) | |
39bcc759 | 289 | Lisp_Object object; |
7921925c | 290 | { |
39bcc759 | 291 | if (CONSP (object) || NILP (object)) |
7921925c JB |
292 | return Qnil; |
293 | return Qt; | |
294 | } | |
295 | \f | |
25638b07 | 296 | DEFUN ("symbolp", Fsymbolp, Ssymbolp, 1, 1, 0, |
8c1a1077 PJ |
297 | doc: /* Return t if OBJECT is a symbol. */) |
298 | (object) | |
39bcc759 | 299 | Lisp_Object object; |
7921925c | 300 | { |
39bcc759 | 301 | if (SYMBOLP (object)) |
7921925c JB |
302 | return Qt; |
303 | return Qnil; | |
304 | } | |
305 | ||
cda9b832 DL |
306 | /* Define this in C to avoid unnecessarily consing up the symbol |
307 | name. */ | |
308 | DEFUN ("keywordp", Fkeywordp, Skeywordp, 1, 1, 0, | |
8c1a1077 PJ |
309 | doc: /* Return t if OBJECT is a keyword. |
310 | This means that it is a symbol with a print name beginning with `:' | |
311 | interned in the initial obarray. */) | |
312 | (object) | |
cda9b832 DL |
313 | Lisp_Object object; |
314 | { | |
315 | if (SYMBOLP (object) | |
d5db4077 | 316 | && SREF (SYMBOL_NAME (object), 0) == ':' |
f35d5bad | 317 | && SYMBOL_INTERNED_IN_INITIAL_OBARRAY_P (object)) |
cda9b832 DL |
318 | return Qt; |
319 | return Qnil; | |
320 | } | |
321 | ||
25638b07 | 322 | DEFUN ("vectorp", Fvectorp, Svectorp, 1, 1, 0, |
8c1a1077 PJ |
323 | doc: /* Return t if OBJECT is a vector. */) |
324 | (object) | |
39bcc759 | 325 | Lisp_Object object; |
7921925c | 326 | { |
39bcc759 | 327 | if (VECTORP (object)) |
7921925c JB |
328 | return Qt; |
329 | return Qnil; | |
330 | } | |
331 | ||
25638b07 | 332 | DEFUN ("stringp", Fstringp, Sstringp, 1, 1, 0, |
8c1a1077 PJ |
333 | doc: /* Return t if OBJECT is a string. */) |
334 | (object) | |
39bcc759 | 335 | Lisp_Object object; |
7921925c | 336 | { |
39bcc759 | 337 | if (STRINGP (object)) |
7921925c JB |
338 | return Qt; |
339 | return Qnil; | |
340 | } | |
341 | ||
25638b07 | 342 | DEFUN ("multibyte-string-p", Fmultibyte_string_p, Smultibyte_string_p, |
8c1a1077 PJ |
343 | 1, 1, 0, |
344 | doc: /* Return t if OBJECT is a multibyte string. */) | |
345 | (object) | |
25638b07 RS |
346 | Lisp_Object object; |
347 | { | |
348 | if (STRINGP (object) && STRING_MULTIBYTE (object)) | |
349 | return Qt; | |
350 | return Qnil; | |
351 | } | |
352 | ||
353 | DEFUN ("char-table-p", Fchar_table_p, Schar_table_p, 1, 1, 0, | |
8c1a1077 PJ |
354 | doc: /* Return t if OBJECT is a char-table. */) |
355 | (object) | |
4d276982 RS |
356 | Lisp_Object object; |
357 | { | |
358 | if (CHAR_TABLE_P (object)) | |
359 | return Qt; | |
360 | return Qnil; | |
361 | } | |
362 | ||
7f0edce7 RS |
363 | DEFUN ("vector-or-char-table-p", Fvector_or_char_table_p, |
364 | Svector_or_char_table_p, 1, 1, 0, | |
8c1a1077 PJ |
365 | doc: /* Return t if OBJECT is a char-table or vector. */) |
366 | (object) | |
7f0edce7 RS |
367 | Lisp_Object object; |
368 | { | |
369 | if (VECTORP (object) || CHAR_TABLE_P (object)) | |
370 | return Qt; | |
371 | return Qnil; | |
372 | } | |
373 | ||
8c1a1077 PJ |
374 | DEFUN ("bool-vector-p", Fbool_vector_p, Sbool_vector_p, 1, 1, 0, |
375 | doc: /* Return t if OBJECT is a bool-vector. */) | |
376 | (object) | |
4d276982 RS |
377 | Lisp_Object object; |
378 | { | |
379 | if (BOOL_VECTOR_P (object)) | |
380 | return Qt; | |
381 | return Qnil; | |
382 | } | |
383 | ||
8c1a1077 PJ |
384 | DEFUN ("arrayp", Farrayp, Sarrayp, 1, 1, 0, |
385 | doc: /* Return t if OBJECT is an array (string or vector). */) | |
386 | (object) | |
39bcc759 | 387 | Lisp_Object object; |
7921925c | 388 | { |
a9729926 RS |
389 | if (VECTORP (object) || STRINGP (object) |
390 | || CHAR_TABLE_P (object) || BOOL_VECTOR_P (object)) | |
7921925c JB |
391 | return Qt; |
392 | return Qnil; | |
393 | } | |
394 | ||
395 | DEFUN ("sequencep", Fsequencep, Ssequencep, 1, 1, 0, | |
8c1a1077 PJ |
396 | doc: /* Return t if OBJECT is a sequence (list or array). */) |
397 | (object) | |
39bcc759 | 398 | register Lisp_Object object; |
7921925c | 399 | { |
4d276982 RS |
400 | if (CONSP (object) || NILP (object) || VECTORP (object) || STRINGP (object) |
401 | || CHAR_TABLE_P (object) || BOOL_VECTOR_P (object)) | |
7921925c JB |
402 | return Qt; |
403 | return Qnil; | |
404 | } | |
405 | ||
8c1a1077 PJ |
406 | DEFUN ("bufferp", Fbufferp, Sbufferp, 1, 1, 0, |
407 | doc: /* Return t if OBJECT is an editor buffer. */) | |
408 | (object) | |
39bcc759 | 409 | Lisp_Object object; |
7921925c | 410 | { |
39bcc759 | 411 | if (BUFFERP (object)) |
7921925c JB |
412 | return Qt; |
413 | return Qnil; | |
414 | } | |
415 | ||
8c1a1077 PJ |
416 | DEFUN ("markerp", Fmarkerp, Smarkerp, 1, 1, 0, |
417 | doc: /* Return t if OBJECT is a marker (editor pointer). */) | |
418 | (object) | |
39bcc759 | 419 | Lisp_Object object; |
7921925c | 420 | { |
39bcc759 | 421 | if (MARKERP (object)) |
7921925c JB |
422 | return Qt; |
423 | return Qnil; | |
424 | } | |
425 | ||
8c1a1077 PJ |
426 | DEFUN ("subrp", Fsubrp, Ssubrp, 1, 1, 0, |
427 | doc: /* Return t if OBJECT is a built-in function. */) | |
428 | (object) | |
39bcc759 | 429 | Lisp_Object object; |
7921925c | 430 | { |
39bcc759 | 431 | if (SUBRP (object)) |
7921925c JB |
432 | return Qt; |
433 | return Qnil; | |
434 | } | |
435 | ||
dbc4e1c1 | 436 | DEFUN ("byte-code-function-p", Fbyte_code_function_p, Sbyte_code_function_p, |
8c1a1077 PJ |
437 | 1, 1, 0, |
438 | doc: /* Return t if OBJECT is a byte-compiled function object. */) | |
439 | (object) | |
39bcc759 | 440 | Lisp_Object object; |
7921925c | 441 | { |
39bcc759 | 442 | if (COMPILEDP (object)) |
7921925c JB |
443 | return Qt; |
444 | return Qnil; | |
445 | } | |
446 | ||
0321d75c | 447 | DEFUN ("char-or-string-p", Fchar_or_string_p, Schar_or_string_p, 1, 1, 0, |
8c1a1077 PJ |
448 | doc: /* Return t if OBJECT is a character (an integer) or a string. */) |
449 | (object) | |
39bcc759 | 450 | register Lisp_Object object; |
7921925c | 451 | { |
39bcc759 | 452 | if (INTEGERP (object) || STRINGP (object)) |
7921925c JB |
453 | return Qt; |
454 | return Qnil; | |
455 | } | |
456 | \f | |
8c1a1077 PJ |
457 | DEFUN ("integerp", Fintegerp, Sintegerp, 1, 1, 0, |
458 | doc: /* Return t if OBJECT is an integer. */) | |
459 | (object) | |
39bcc759 | 460 | Lisp_Object object; |
7921925c | 461 | { |
39bcc759 | 462 | if (INTEGERP (object)) |
7921925c JB |
463 | return Qt; |
464 | return Qnil; | |
465 | } | |
466 | ||
464f8898 | 467 | DEFUN ("integer-or-marker-p", Finteger_or_marker_p, Sinteger_or_marker_p, 1, 1, 0, |
8c1a1077 PJ |
468 | doc: /* Return t if OBJECT is an integer or a marker (editor pointer). */) |
469 | (object) | |
39bcc759 | 470 | register Lisp_Object object; |
7921925c | 471 | { |
39bcc759 | 472 | if (MARKERP (object) || INTEGERP (object)) |
7921925c JB |
473 | return Qt; |
474 | return Qnil; | |
475 | } | |
476 | ||
0321d75c | 477 | DEFUN ("natnump", Fnatnump, Snatnump, 1, 1, 0, |
8c1a1077 PJ |
478 | doc: /* Return t if OBJECT is a nonnegative integer. */) |
479 | (object) | |
39bcc759 | 480 | Lisp_Object object; |
7921925c | 481 | { |
39bcc759 | 482 | if (NATNUMP (object)) |
7921925c JB |
483 | return Qt; |
484 | return Qnil; | |
485 | } | |
486 | ||
487 | DEFUN ("numberp", Fnumberp, Snumberp, 1, 1, 0, | |
8c1a1077 PJ |
488 | doc: /* Return t if OBJECT is a number (floating point or integer). */) |
489 | (object) | |
39bcc759 | 490 | Lisp_Object object; |
7921925c | 491 | { |
39bcc759 | 492 | if (NUMBERP (object)) |
7921925c | 493 | return Qt; |
dbc4e1c1 JB |
494 | else |
495 | return Qnil; | |
7921925c JB |
496 | } |
497 | ||
498 | DEFUN ("number-or-marker-p", Fnumber_or_marker_p, | |
499 | Snumber_or_marker_p, 1, 1, 0, | |
8c1a1077 PJ |
500 | doc: /* Return t if OBJECT is a number or a marker. */) |
501 | (object) | |
39bcc759 | 502 | Lisp_Object object; |
7921925c | 503 | { |
39bcc759 | 504 | if (NUMBERP (object) || MARKERP (object)) |
7921925c JB |
505 | return Qt; |
506 | return Qnil; | |
507 | } | |
464f8898 | 508 | |
464f8898 | 509 | DEFUN ("floatp", Ffloatp, Sfloatp, 1, 1, 0, |
8c1a1077 PJ |
510 | doc: /* Return t if OBJECT is a floating point number. */) |
511 | (object) | |
39bcc759 | 512 | Lisp_Object object; |
464f8898 | 513 | { |
39bcc759 | 514 | if (FLOATP (object)) |
464f8898 RS |
515 | return Qt; |
516 | return Qnil; | |
517 | } | |
cc94f3b2 | 518 | |
7921925c JB |
519 | \f |
520 | /* Extract and set components of lists */ | |
521 | ||
522 | DEFUN ("car", Fcar, Scar, 1, 1, 0, | |
8c1a1077 PJ |
523 | doc: /* Return the car of LIST. If arg is nil, return nil. |
524 | Error if arg is not nil and not a cons cell. See also `car-safe'. */) | |
525 | (list) | |
7921925c JB |
526 | register Lisp_Object list; |
527 | { | |
528 | while (1) | |
529 | { | |
e9ebc175 | 530 | if (CONSP (list)) |
7539e11f | 531 | return XCAR (list); |
7921925c JB |
532 | else if (EQ (list, Qnil)) |
533 | return Qnil; | |
534 | else | |
535 | list = wrong_type_argument (Qlistp, list); | |
536 | } | |
537 | } | |
538 | ||
539 | DEFUN ("car-safe", Fcar_safe, Scar_safe, 1, 1, 0, | |
8c1a1077 PJ |
540 | doc: /* Return the car of OBJECT if it is a cons cell, or else nil. */) |
541 | (object) | |
7921925c JB |
542 | Lisp_Object object; |
543 | { | |
e9ebc175 | 544 | if (CONSP (object)) |
7539e11f | 545 | return XCAR (object); |
7921925c JB |
546 | else |
547 | return Qnil; | |
548 | } | |
549 | ||
550 | DEFUN ("cdr", Fcdr, Scdr, 1, 1, 0, | |
8c1a1077 PJ |
551 | doc: /* Return the cdr of LIST. If arg is nil, return nil. |
552 | Error if arg is not nil and not a cons cell. See also `cdr-safe'. */) | |
553 | (list) | |
7921925c JB |
554 | register Lisp_Object list; |
555 | { | |
556 | while (1) | |
557 | { | |
e9ebc175 | 558 | if (CONSP (list)) |
7539e11f | 559 | return XCDR (list); |
7921925c JB |
560 | else if (EQ (list, Qnil)) |
561 | return Qnil; | |
562 | else | |
563 | list = wrong_type_argument (Qlistp, list); | |
564 | } | |
565 | } | |
566 | ||
567 | DEFUN ("cdr-safe", Fcdr_safe, Scdr_safe, 1, 1, 0, | |
8c1a1077 PJ |
568 | doc: /* Return the cdr of OBJECT if it is a cons cell, or else nil. */) |
569 | (object) | |
7921925c JB |
570 | Lisp_Object object; |
571 | { | |
e9ebc175 | 572 | if (CONSP (object)) |
7539e11f | 573 | return XCDR (object); |
7921925c JB |
574 | else |
575 | return Qnil; | |
576 | } | |
577 | ||
578 | DEFUN ("setcar", Fsetcar, Ssetcar, 2, 2, 0, | |
8c1a1077 PJ |
579 | doc: /* Set the car of CELL to be NEWCAR. Returns NEWCAR. */) |
580 | (cell, newcar) | |
7921925c JB |
581 | register Lisp_Object cell, newcar; |
582 | { | |
e9ebc175 | 583 | if (!CONSP (cell)) |
7921925c JB |
584 | cell = wrong_type_argument (Qconsp, cell); |
585 | ||
586 | CHECK_IMPURE (cell); | |
f3fbd155 | 587 | XSETCAR (cell, newcar); |
7921925c JB |
588 | return newcar; |
589 | } | |
590 | ||
591 | DEFUN ("setcdr", Fsetcdr, Ssetcdr, 2, 2, 0, | |
8c1a1077 PJ |
592 | doc: /* Set the cdr of CELL to be NEWCDR. Returns NEWCDR. */) |
593 | (cell, newcdr) | |
7921925c JB |
594 | register Lisp_Object cell, newcdr; |
595 | { | |
e9ebc175 | 596 | if (!CONSP (cell)) |
7921925c JB |
597 | cell = wrong_type_argument (Qconsp, cell); |
598 | ||
599 | CHECK_IMPURE (cell); | |
f3fbd155 | 600 | XSETCDR (cell, newcdr); |
7921925c JB |
601 | return newcdr; |
602 | } | |
603 | \f | |
604 | /* Extract and set components of symbols */ | |
605 | ||
8c1a1077 PJ |
606 | DEFUN ("boundp", Fboundp, Sboundp, 1, 1, 0, |
607 | doc: /* Return t if SYMBOL's value is not void. */) | |
608 | (symbol) | |
d9c2a0f2 | 609 | register Lisp_Object symbol; |
7921925c JB |
610 | { |
611 | Lisp_Object valcontents; | |
b7826503 | 612 | CHECK_SYMBOL (symbol); |
7921925c | 613 | |
f35d5bad | 614 | valcontents = SYMBOL_VALUE (symbol); |
7921925c | 615 | |
aabf6bec KH |
616 | if (BUFFER_LOCAL_VALUEP (valcontents) |
617 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 618 | valcontents = swap_in_symval_forwarding (symbol, valcontents); |
7921925c | 619 | |
1bfcade3 | 620 | return (EQ (valcontents, Qunbound) ? Qnil : Qt); |
7921925c JB |
621 | } |
622 | ||
8c1a1077 PJ |
623 | DEFUN ("fboundp", Ffboundp, Sfboundp, 1, 1, 0, |
624 | doc: /* Return t if SYMBOL's function definition is not void. */) | |
625 | (symbol) | |
d9c2a0f2 | 626 | register Lisp_Object symbol; |
7921925c | 627 | { |
b7826503 | 628 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 629 | return (EQ (XSYMBOL (symbol)->function, Qunbound) ? Qnil : Qt); |
7921925c JB |
630 | } |
631 | ||
8c1a1077 | 632 | DEFUN ("makunbound", Fmakunbound, Smakunbound, 1, 1, 0, |
bfb96cb7 FP |
633 | doc: /* Make SYMBOL's value be void. |
634 | Return SYMBOL. */) | |
8c1a1077 | 635 | (symbol) |
d9c2a0f2 | 636 | register Lisp_Object symbol; |
7921925c | 637 | { |
b7826503 | 638 | CHECK_SYMBOL (symbol); |
f35d5bad | 639 | if (XSYMBOL (symbol)->constant) |
d9c2a0f2 EN |
640 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); |
641 | Fset (symbol, Qunbound); | |
642 | return symbol; | |
7921925c JB |
643 | } |
644 | ||
8c1a1077 | 645 | DEFUN ("fmakunbound", Ffmakunbound, Sfmakunbound, 1, 1, 0, |
bfb96cb7 FP |
646 | doc: /* Make SYMBOL's function definition be void. |
647 | Return SYMBOL. */) | |
8c1a1077 | 648 | (symbol) |
d9c2a0f2 | 649 | register Lisp_Object symbol; |
7921925c | 650 | { |
b7826503 | 651 | CHECK_SYMBOL (symbol); |
d9c2a0f2 EN |
652 | if (NILP (symbol) || EQ (symbol, Qt)) |
653 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); | |
654 | XSYMBOL (symbol)->function = Qunbound; | |
655 | return symbol; | |
7921925c JB |
656 | } |
657 | ||
658 | DEFUN ("symbol-function", Fsymbol_function, Ssymbol_function, 1, 1, 0, | |
8c1a1077 PJ |
659 | doc: /* Return SYMBOL's function definition. Error if that is void. */) |
660 | (symbol) | |
ffd56f97 | 661 | register Lisp_Object symbol; |
7921925c | 662 | { |
b7826503 | 663 | CHECK_SYMBOL (symbol); |
ffd56f97 JB |
664 | if (EQ (XSYMBOL (symbol)->function, Qunbound)) |
665 | return Fsignal (Qvoid_function, Fcons (symbol, Qnil)); | |
666 | return XSYMBOL (symbol)->function; | |
7921925c JB |
667 | } |
668 | ||
8c1a1077 PJ |
669 | DEFUN ("symbol-plist", Fsymbol_plist, Ssymbol_plist, 1, 1, 0, |
670 | doc: /* Return SYMBOL's property list. */) | |
671 | (symbol) | |
d9c2a0f2 | 672 | register Lisp_Object symbol; |
7921925c | 673 | { |
b7826503 | 674 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 675 | return XSYMBOL (symbol)->plist; |
7921925c JB |
676 | } |
677 | ||
8c1a1077 PJ |
678 | DEFUN ("symbol-name", Fsymbol_name, Ssymbol_name, 1, 1, 0, |
679 | doc: /* Return SYMBOL's name, a string. */) | |
680 | (symbol) | |
d9c2a0f2 | 681 | register Lisp_Object symbol; |
7921925c JB |
682 | { |
683 | register Lisp_Object name; | |
684 | ||
b7826503 | 685 | CHECK_SYMBOL (symbol); |
84023177 | 686 | name = SYMBOL_NAME (symbol); |
7921925c JB |
687 | return name; |
688 | } | |
689 | ||
690 | DEFUN ("fset", Ffset, Sfset, 2, 2, 0, | |
8c1a1077 PJ |
691 | doc: /* Set SYMBOL's function definition to DEFINITION, and return DEFINITION. */) |
692 | (symbol, definition) | |
8c0b5540 | 693 | register Lisp_Object symbol, definition; |
d9c2a0f2 | 694 | { |
b7826503 | 695 | CHECK_SYMBOL (symbol); |
d9c2a0f2 EN |
696 | if (NILP (symbol) || EQ (symbol, Qt)) |
697 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); | |
698 | if (!NILP (Vautoload_queue) && !EQ (XSYMBOL (symbol)->function, Qunbound)) | |
699 | Vautoload_queue = Fcons (Fcons (symbol, XSYMBOL (symbol)->function), | |
7921925c | 700 | Vautoload_queue); |
8c0b5540 | 701 | XSYMBOL (symbol)->function = definition; |
f845f2c9 | 702 | /* Handle automatic advice activation */ |
d9c2a0f2 | 703 | if (CONSP (XSYMBOL (symbol)->plist) && !NILP (Fget (symbol, Qad_advice_info))) |
f845f2c9 | 704 | { |
c1307a23 | 705 | call2 (Qad_activate_internal, symbol, Qnil); |
8c0b5540 | 706 | definition = XSYMBOL (symbol)->function; |
f845f2c9 | 707 | } |
8c0b5540 | 708 | return definition; |
7921925c JB |
709 | } |
710 | ||
d2fde41d SM |
711 | extern Lisp_Object Qfunction_documentation; |
712 | ||
713 | DEFUN ("defalias", Fdefalias, Sdefalias, 2, 3, 0, | |
8c1a1077 | 714 | doc: /* Set SYMBOL's function definition to DEFINITION, and return DEFINITION. |
96143227 RS |
715 | Associates the function with the current load file, if any. |
716 | The optional third argument DOCSTRING specifies the documentation string | |
717 | for SYMBOL; if it is omitted or nil, SYMBOL uses the documentation string | |
718 | determined by DEFINITION. */) | |
d2fde41d SM |
719 | (symbol, definition, docstring) |
720 | register Lisp_Object symbol, definition, docstring; | |
fc08c367 | 721 | { |
894f6538 RS |
722 | if (CONSP (XSYMBOL (symbol)->function) |
723 | && EQ (XCAR (XSYMBOL (symbol)->function), Qautoload)) | |
724 | LOADHIST_ATTACH (Fcons (Qt, symbol)); | |
32f532b7 | 725 | definition = Ffset (symbol, definition); |
d9c2a0f2 | 726 | LOADHIST_ATTACH (symbol); |
d2fde41d SM |
727 | if (!NILP (docstring)) |
728 | Fput (symbol, Qfunction_documentation, docstring); | |
73e0d965 | 729 | return definition; |
fc08c367 RS |
730 | } |
731 | ||
7921925c | 732 | DEFUN ("setplist", Fsetplist, Ssetplist, 2, 2, 0, |
29802b85 | 733 | doc: /* Set SYMBOL's property list to NEWPLIST, and return NEWPLIST. */) |
8c1a1077 | 734 | (symbol, newplist) |
d9c2a0f2 | 735 | register Lisp_Object symbol, newplist; |
7921925c | 736 | { |
b7826503 | 737 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 738 | XSYMBOL (symbol)->plist = newplist; |
7921925c JB |
739 | return newplist; |
740 | } | |
ffd56f97 | 741 | |
6f0e897f | 742 | DEFUN ("subr-arity", Fsubr_arity, Ssubr_arity, 1, 1, 0, |
8c1a1077 PJ |
743 | doc: /* Return minimum and maximum number of args allowed for SUBR. |
744 | SUBR must be a built-in function. | |
745 | The returned value is a pair (MIN . MAX). MIN is the minimum number | |
746 | of args. MAX is the maximum number or the symbol `many', for a | |
747 | function with `&rest' args, or `unevalled' for a special form. */) | |
748 | (subr) | |
6f0e897f DL |
749 | Lisp_Object subr; |
750 | { | |
751 | short minargs, maxargs; | |
752 | if (!SUBRP (subr)) | |
753 | wrong_type_argument (Qsubrp, subr); | |
754 | minargs = XSUBR (subr)->min_args; | |
755 | maxargs = XSUBR (subr)->max_args; | |
756 | if (maxargs == MANY) | |
757 | return Fcons (make_number (minargs), Qmany); | |
758 | else if (maxargs == UNEVALLED) | |
759 | return Fcons (make_number (minargs), Qunevalled); | |
760 | else | |
761 | return Fcons (make_number (minargs), make_number (maxargs)); | |
762 | } | |
763 | ||
0fddae66 SM |
764 | DEFUN ("subr-name", Fsubr_name, Ssubr_name, 1, 1, 0, |
765 | doc: /* Return name of subroutine SUBR. | |
766 | SUBR must be a built-in function. */) | |
767 | (subr) | |
768 | Lisp_Object subr; | |
769 | { | |
770 | const char *name; | |
771 | if (!SUBRP (subr)) | |
772 | wrong_type_argument (Qsubrp, subr); | |
773 | name = XSUBR (subr)->symbol_name; | |
774 | return make_string (name, strlen (name)); | |
775 | } | |
776 | ||
f52a3ca3 SM |
777 | DEFUN ("interactive-form", Finteractive_form, Sinteractive_form, 1, 1, 0, |
778 | doc: /* Return the interactive form of CMD or nil if none. | |
779 | CMD must be a command. Value, if non-nil, is a list | |
8c1a1077 | 780 | \(interactive SPEC). */) |
f52a3ca3 SM |
781 | (cmd) |
782 | Lisp_Object cmd; | |
cc515226 | 783 | { |
f52a3ca3 SM |
784 | Lisp_Object fun = indirect_function (cmd); |
785 | ||
786 | if (SUBRP (fun)) | |
787 | { | |
788 | if (XSUBR (fun)->prompt) | |
789 | return list2 (Qinteractive, build_string (XSUBR (fun)->prompt)); | |
790 | } | |
791 | else if (COMPILEDP (fun)) | |
792 | { | |
793 | if ((ASIZE (fun) & PSEUDOVECTOR_SIZE_MASK) > COMPILED_INTERACTIVE) | |
794 | return list2 (Qinteractive, AREF (fun, COMPILED_INTERACTIVE)); | |
795 | } | |
796 | else if (CONSP (fun)) | |
797 | { | |
798 | Lisp_Object funcar = XCAR (fun); | |
799 | if (EQ (funcar, Qlambda)) | |
800 | return Fassq (Qinteractive, Fcdr (XCDR (fun))); | |
801 | else if (EQ (funcar, Qautoload)) | |
802 | { | |
803 | struct gcpro gcpro1; | |
804 | GCPRO1 (cmd); | |
805 | do_autoload (fun, cmd); | |
806 | UNGCPRO; | |
807 | return Finteractive_form (cmd); | |
808 | } | |
809 | } | |
cc515226 GM |
810 | return Qnil; |
811 | } | |
812 | ||
7921925c | 813 | \f |
f35d5bad GM |
814 | /*********************************************************************** |
815 | Getting and Setting Values of Symbols | |
816 | ***********************************************************************/ | |
817 | ||
818 | /* Return the symbol holding SYMBOL's value. Signal | |
819 | `cyclic-variable-indirection' if SYMBOL's chain of variable | |
820 | indirections contains a loop. */ | |
821 | ||
822 | Lisp_Object | |
823 | indirect_variable (symbol) | |
824 | Lisp_Object symbol; | |
825 | { | |
826 | Lisp_Object tortoise, hare; | |
827 | ||
828 | hare = tortoise = symbol; | |
829 | ||
830 | while (XSYMBOL (hare)->indirect_variable) | |
831 | { | |
832 | hare = XSYMBOL (hare)->value; | |
833 | if (!XSYMBOL (hare)->indirect_variable) | |
834 | break; | |
bfb96cb7 | 835 | |
f35d5bad GM |
836 | hare = XSYMBOL (hare)->value; |
837 | tortoise = XSYMBOL (tortoise)->value; | |
838 | ||
839 | if (EQ (hare, tortoise)) | |
840 | Fsignal (Qcyclic_variable_indirection, Fcons (symbol, Qnil)); | |
841 | } | |
842 | ||
843 | return hare; | |
844 | } | |
845 | ||
846 | ||
847 | DEFUN ("indirect-variable", Findirect_variable, Sindirect_variable, 1, 1, 0, | |
8c1a1077 PJ |
848 | doc: /* Return the variable at the end of OBJECT's variable chain. |
849 | If OBJECT is a symbol, follow all variable indirections and return the final | |
850 | variable. If OBJECT is not a symbol, just return it. | |
851 | Signal a cyclic-variable-indirection error if there is a loop in the | |
852 | variable chain of symbols. */) | |
853 | (object) | |
f35d5bad GM |
854 | Lisp_Object object; |
855 | { | |
856 | if (SYMBOLP (object)) | |
857 | object = indirect_variable (object); | |
858 | return object; | |
859 | } | |
860 | ||
7921925c JB |
861 | |
862 | /* Given the raw contents of a symbol value cell, | |
863 | return the Lisp value of the symbol. | |
864 | This does not handle buffer-local variables; use | |
865 | swap_in_symval_forwarding for that. */ | |
866 | ||
867 | Lisp_Object | |
868 | do_symval_forwarding (valcontents) | |
869 | register Lisp_Object valcontents; | |
870 | { | |
871 | register Lisp_Object val; | |
46b2ac21 KH |
872 | int offset; |
873 | if (MISCP (valcontents)) | |
324a6eef | 874 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
875 | { |
876 | case Lisp_Misc_Intfwd: | |
877 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
878 | return val; | |
7921925c | 879 | |
46b2ac21 KH |
880 | case Lisp_Misc_Boolfwd: |
881 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
7921925c | 882 | |
46b2ac21 KH |
883 | case Lisp_Misc_Objfwd: |
884 | return *XOBJFWD (valcontents)->objvar; | |
7921925c | 885 | |
46b2ac21 KH |
886 | case Lisp_Misc_Buffer_Objfwd: |
887 | offset = XBUFFER_OBJFWD (valcontents)->offset; | |
f6cd0527 | 888 | return PER_BUFFER_VALUE (current_buffer, offset); |
7403b5c8 | 889 | |
e5f8af9e KH |
890 | case Lisp_Misc_Kboard_Objfwd: |
891 | offset = XKBOARD_OBJFWD (valcontents)->offset; | |
892 | return *(Lisp_Object *)(offset + (char *)current_kboard); | |
46b2ac21 | 893 | } |
7921925c JB |
894 | return valcontents; |
895 | } | |
896 | ||
d9c2a0f2 EN |
897 | /* Store NEWVAL into SYMBOL, where VALCONTENTS is found in the value cell |
898 | of SYMBOL. If SYMBOL is buffer-local, VALCONTENTS should be the | |
7921925c | 899 | buffer-independent contents of the value cell: forwarded just one |
7a283f36 GM |
900 | step past the buffer-localness. |
901 | ||
902 | BUF non-zero means set the value in buffer BUF instead of the | |
903 | current buffer. This only plays a role for per-buffer variables. */ | |
7921925c JB |
904 | |
905 | void | |
7a283f36 | 906 | store_symval_forwarding (symbol, valcontents, newval, buf) |
d9c2a0f2 | 907 | Lisp_Object symbol; |
7921925c | 908 | register Lisp_Object valcontents, newval; |
7a283f36 | 909 | struct buffer *buf; |
7921925c | 910 | { |
7abd90ea RS |
911 | int offset; |
912 | ||
0220c518 | 913 | switch (SWITCH_ENUM_CAST (XTYPE (valcontents))) |
7921925c | 914 | { |
46b2ac21 | 915 | case Lisp_Misc: |
324a6eef | 916 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
917 | { |
918 | case Lisp_Misc_Intfwd: | |
b7826503 | 919 | CHECK_NUMBER (newval); |
46b2ac21 | 920 | *XINTFWD (valcontents)->intvar = XINT (newval); |
e6c82a8d RS |
921 | if (*XINTFWD (valcontents)->intvar != XINT (newval)) |
922 | error ("Value out of range for variable `%s'", | |
d5db4077 | 923 | SDATA (SYMBOL_NAME (symbol))); |
46b2ac21 KH |
924 | break; |
925 | ||
926 | case Lisp_Misc_Boolfwd: | |
927 | *XBOOLFWD (valcontents)->boolvar = NILP (newval) ? 0 : 1; | |
928 | break; | |
929 | ||
930 | case Lisp_Misc_Objfwd: | |
931 | *XOBJFWD (valcontents)->objvar = newval; | |
7abd90ea RS |
932 | |
933 | /* If this variable is a default for something stored | |
934 | in the buffer itself, such as default-fill-column, | |
935 | find the buffers that don't have local values for it | |
936 | and update them. */ | |
937 | if (XOBJFWD (valcontents)->objvar > (Lisp_Object *) &buffer_defaults | |
938 | && XOBJFWD (valcontents)->objvar < (Lisp_Object *) (&buffer_defaults + 1)) | |
939 | { | |
940 | int offset = ((char *) XOBJFWD (valcontents)->objvar | |
941 | - (char *) &buffer_defaults); | |
942 | int idx = PER_BUFFER_IDX (offset); | |
943 | ||
944 | Lisp_Object tail, buf; | |
945 | ||
946 | if (idx <= 0) | |
947 | break; | |
948 | ||
949 | for (tail = Vbuffer_alist; CONSP (tail); tail = XCDR (tail)) | |
950 | { | |
951 | Lisp_Object buf; | |
952 | struct buffer *b; | |
953 | ||
954 | buf = Fcdr (XCAR (tail)); | |
955 | if (!BUFFERP (buf)) continue; | |
956 | b = XBUFFER (buf); | |
957 | ||
958 | if (! PER_BUFFER_VALUE_P (b, idx)) | |
959 | PER_BUFFER_VALUE (b, offset) = newval; | |
960 | } | |
961 | } | |
46b2ac21 KH |
962 | break; |
963 | ||
964 | case Lisp_Misc_Buffer_Objfwd: | |
965 | { | |
966 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
967 | Lisp_Object type; | |
968 | ||
d9b36d19 | 969 | type = PER_BUFFER_TYPE (offset); |
46b2ac21 KH |
970 | if (! NILP (type) && ! NILP (newval) |
971 | && XTYPE (newval) != XINT (type)) | |
972 | buffer_slot_type_mismatch (offset); | |
973 | ||
7a283f36 GM |
974 | if (buf == NULL) |
975 | buf = current_buffer; | |
976 | PER_BUFFER_VALUE (buf, offset) = newval; | |
46b2ac21 | 977 | } |
7403b5c8 KH |
978 | break; |
979 | ||
e5f8af9e | 980 | case Lisp_Misc_Kboard_Objfwd: |
7a283f36 GM |
981 | { |
982 | char *base = (char *) current_kboard; | |
983 | char *p = base + XKBOARD_OBJFWD (valcontents)->offset; | |
984 | *(Lisp_Object *) p = newval; | |
985 | } | |
7403b5c8 KH |
986 | break; |
987 | ||
46b2ac21 KH |
988 | default: |
989 | goto def; | |
990 | } | |
7921925c JB |
991 | break; |
992 | ||
7921925c | 993 | default: |
46b2ac21 | 994 | def: |
f35d5bad | 995 | valcontents = SYMBOL_VALUE (symbol); |
e9ebc175 KH |
996 | if (BUFFER_LOCAL_VALUEP (valcontents) |
997 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
b0c2d1c6 | 998 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue = newval; |
7921925c | 999 | else |
f35d5bad | 1000 | SET_SYMBOL_VALUE (symbol, newval); |
7921925c JB |
1001 | } |
1002 | } | |
1003 | ||
b0d53add GM |
1004 | /* Set up SYMBOL to refer to its global binding. |
1005 | This makes it safe to alter the status of other bindings. */ | |
1006 | ||
1007 | void | |
1008 | swap_in_global_binding (symbol) | |
1009 | Lisp_Object symbol; | |
1010 | { | |
1011 | Lisp_Object valcontents, cdr; | |
bfb96cb7 | 1012 | |
f35d5bad | 1013 | valcontents = SYMBOL_VALUE (symbol); |
b0d53add GM |
1014 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1015 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
1016 | abort (); | |
1017 | cdr = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
1018 | ||
1019 | /* Unload the previously loaded binding. */ | |
1020 | Fsetcdr (XCAR (cdr), | |
1021 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); | |
bfb96cb7 | 1022 | |
b0d53add | 1023 | /* Select the global binding in the symbol. */ |
f3fbd155 | 1024 | XSETCAR (cdr, cdr); |
7a283f36 | 1025 | store_symval_forwarding (symbol, valcontents, XCDR (cdr), NULL); |
b0d53add GM |
1026 | |
1027 | /* Indicate that the global binding is set up now. */ | |
1028 | XBUFFER_LOCAL_VALUE (valcontents)->frame = Qnil; | |
1029 | XBUFFER_LOCAL_VALUE (valcontents)->buffer = Qnil; | |
1030 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; | |
1031 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
1032 | } | |
1033 | ||
2829d05f | 1034 | /* Set up the buffer-local symbol SYMBOL for validity in the current buffer. |
42e975f0 RS |
1035 | VALCONTENTS is the contents of its value cell, |
1036 | which points to a struct Lisp_Buffer_Local_Value. | |
1037 | ||
1038 | Return the value forwarded one step past the buffer-local stage. | |
1039 | This could be another forwarding pointer. */ | |
7921925c JB |
1040 | |
1041 | static Lisp_Object | |
d9c2a0f2 EN |
1042 | swap_in_symval_forwarding (symbol, valcontents) |
1043 | Lisp_Object symbol, valcontents; | |
7921925c | 1044 | { |
7921925c | 1045 | register Lisp_Object tem1; |
bfb96cb7 | 1046 | |
b0c2d1c6 | 1047 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
7921925c | 1048 | |
42e975f0 RS |
1049 | if (NILP (tem1) |
1050 | || current_buffer != XBUFFER (tem1) | |
1051 | || (XBUFFER_LOCAL_VALUE (valcontents)->check_frame | |
1052 | && ! EQ (selected_frame, XBUFFER_LOCAL_VALUE (valcontents)->frame))) | |
7921925c | 1053 | { |
f35d5bad GM |
1054 | if (XSYMBOL (symbol)->indirect_variable) |
1055 | symbol = indirect_variable (symbol); | |
bfb96cb7 | 1056 | |
42e975f0 | 1057 | /* Unload the previously loaded binding. */ |
7539e11f | 1058 | tem1 = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
8d4afcac | 1059 | Fsetcdr (tem1, |
b0c2d1c6 | 1060 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); |
42e975f0 | 1061 | /* Choose the new binding. */ |
d9c2a0f2 | 1062 | tem1 = assq_no_quit (symbol, current_buffer->local_var_alist); |
b0c2d1c6 RS |
1063 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; |
1064 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
a33ef3ab | 1065 | if (NILP (tem1)) |
b0c2d1c6 RS |
1066 | { |
1067 | if (XBUFFER_LOCAL_VALUE (valcontents)->check_frame) | |
1cc04aed | 1068 | tem1 = assq_no_quit (symbol, XFRAME (selected_frame)->param_alist); |
b0c2d1c6 RS |
1069 | if (! NILP (tem1)) |
1070 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 1; | |
1071 | else | |
1072 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
1073 | } | |
1074 | else | |
1075 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 1; | |
1076 | ||
42e975f0 | 1077 | /* Load the new binding. */ |
f3fbd155 | 1078 | XSETCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr, tem1); |
b0c2d1c6 | 1079 | XSETBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer, current_buffer); |
1cc04aed | 1080 | XBUFFER_LOCAL_VALUE (valcontents)->frame = selected_frame; |
b0c2d1c6 RS |
1081 | store_symval_forwarding (symbol, |
1082 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue, | |
7a283f36 | 1083 | Fcdr (tem1), NULL); |
7921925c | 1084 | } |
b0c2d1c6 | 1085 | return XBUFFER_LOCAL_VALUE (valcontents)->realvalue; |
7921925c JB |
1086 | } |
1087 | \f | |
14e76af9 JB |
1088 | /* Find the value of a symbol, returning Qunbound if it's not bound. |
1089 | This is helpful for code which just wants to get a variable's value | |
8e6208c5 | 1090 | if it has one, without signaling an error. |
14e76af9 JB |
1091 | Note that it must not be possible to quit |
1092 | within this function. Great care is required for this. */ | |
7921925c | 1093 | |
14e76af9 | 1094 | Lisp_Object |
d9c2a0f2 EN |
1095 | find_symbol_value (symbol) |
1096 | Lisp_Object symbol; | |
7921925c | 1097 | { |
dd8daec5 | 1098 | register Lisp_Object valcontents; |
7921925c | 1099 | register Lisp_Object val; |
bfb96cb7 | 1100 | |
b7826503 | 1101 | CHECK_SYMBOL (symbol); |
f35d5bad | 1102 | valcontents = SYMBOL_VALUE (symbol); |
7921925c | 1103 | |
aabf6bec KH |
1104 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1105 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
2a359158 | 1106 | valcontents = swap_in_symval_forwarding (symbol, valcontents); |
7921925c | 1107 | |
536b772a KH |
1108 | if (MISCP (valcontents)) |
1109 | { | |
324a6eef | 1110 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
1111 | { |
1112 | case Lisp_Misc_Intfwd: | |
1113 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
1114 | return val; | |
7921925c | 1115 | |
46b2ac21 KH |
1116 | case Lisp_Misc_Boolfwd: |
1117 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
7921925c | 1118 | |
46b2ac21 KH |
1119 | case Lisp_Misc_Objfwd: |
1120 | return *XOBJFWD (valcontents)->objvar; | |
7921925c | 1121 | |
46b2ac21 | 1122 | case Lisp_Misc_Buffer_Objfwd: |
f6cd0527 | 1123 | return PER_BUFFER_VALUE (current_buffer, |
999b32fd | 1124 | XBUFFER_OBJFWD (valcontents)->offset); |
7403b5c8 | 1125 | |
e5f8af9e KH |
1126 | case Lisp_Misc_Kboard_Objfwd: |
1127 | return *(Lisp_Object *)(XKBOARD_OBJFWD (valcontents)->offset | |
1128 | + (char *)current_kboard); | |
46b2ac21 | 1129 | } |
7921925c JB |
1130 | } |
1131 | ||
1132 | return valcontents; | |
1133 | } | |
1134 | ||
14e76af9 | 1135 | DEFUN ("symbol-value", Fsymbol_value, Ssymbol_value, 1, 1, 0, |
8c1a1077 PJ |
1136 | doc: /* Return SYMBOL's value. Error if that is void. */) |
1137 | (symbol) | |
d9c2a0f2 | 1138 | Lisp_Object symbol; |
14e76af9 | 1139 | { |
0671d7c0 | 1140 | Lisp_Object val; |
14e76af9 | 1141 | |
d9c2a0f2 | 1142 | val = find_symbol_value (symbol); |
14e76af9 | 1143 | if (EQ (val, Qunbound)) |
d9c2a0f2 | 1144 | return Fsignal (Qvoid_variable, Fcons (symbol, Qnil)); |
14e76af9 JB |
1145 | else |
1146 | return val; | |
1147 | } | |
1148 | ||
7921925c | 1149 | DEFUN ("set", Fset, Sset, 2, 2, 0, |
8c1a1077 PJ |
1150 | doc: /* Set SYMBOL's value to NEWVAL, and return NEWVAL. */) |
1151 | (symbol, newval) | |
d9c2a0f2 | 1152 | register Lisp_Object symbol, newval; |
05ef7169 | 1153 | { |
2829d05f | 1154 | return set_internal (symbol, newval, current_buffer, 0); |
05ef7169 RS |
1155 | } |
1156 | ||
1f35ce36 RS |
1157 | /* Return 1 if SYMBOL currently has a let-binding |
1158 | which was made in the buffer that is now current. */ | |
1159 | ||
1160 | static int | |
1161 | let_shadows_buffer_binding_p (symbol) | |
1162 | Lisp_Object symbol; | |
1163 | { | |
92426155 | 1164 | volatile struct specbinding *p; |
1f35ce36 RS |
1165 | |
1166 | for (p = specpdl_ptr - 1; p >= specpdl; p--) | |
f35d5bad GM |
1167 | if (p->func == NULL |
1168 | && CONSP (p->symbol)) | |
1169 | { | |
1170 | Lisp_Object let_bound_symbol = XCAR (p->symbol); | |
1171 | if ((EQ (symbol, let_bound_symbol) | |
1172 | || (XSYMBOL (let_bound_symbol)->indirect_variable | |
1173 | && EQ (symbol, indirect_variable (let_bound_symbol)))) | |
1174 | && XBUFFER (XCDR (XCDR (p->symbol))) == current_buffer) | |
1175 | break; | |
1176 | } | |
1f35ce36 | 1177 | |
f35d5bad | 1178 | return p >= specpdl; |
1f35ce36 RS |
1179 | } |
1180 | ||
25638b07 | 1181 | /* Store the value NEWVAL into SYMBOL. |
2829d05f RS |
1182 | If buffer-locality is an issue, BUF specifies which buffer to use. |
1183 | (0 stands for the current buffer.) | |
1184 | ||
05ef7169 RS |
1185 | If BINDFLAG is zero, then if this symbol is supposed to become |
1186 | local in every buffer where it is set, then we make it local. | |
1187 | If BINDFLAG is nonzero, we don't do that. */ | |
1188 | ||
1189 | Lisp_Object | |
2829d05f | 1190 | set_internal (symbol, newval, buf, bindflag) |
05ef7169 | 1191 | register Lisp_Object symbol, newval; |
2829d05f | 1192 | struct buffer *buf; |
05ef7169 | 1193 | int bindflag; |
7921925c | 1194 | { |
1bfcade3 | 1195 | int voide = EQ (newval, Qunbound); |
7921925c | 1196 | |
4c47c973 | 1197 | register Lisp_Object valcontents, innercontents, tem1, current_alist_element; |
7921925c | 1198 | |
2829d05f RS |
1199 | if (buf == 0) |
1200 | buf = current_buffer; | |
1201 | ||
1202 | /* If restoring in a dead buffer, do nothing. */ | |
1203 | if (NILP (buf->name)) | |
1204 | return newval; | |
1205 | ||
b7826503 | 1206 | CHECK_SYMBOL (symbol); |
f35d5bad GM |
1207 | if (SYMBOL_CONSTANT_P (symbol) |
1208 | && (NILP (Fkeywordp (symbol)) | |
1209 | || !EQ (newval, SYMBOL_VALUE (symbol)))) | |
d9c2a0f2 | 1210 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); |
4c47c973 | 1211 | |
f35d5bad | 1212 | innercontents = valcontents = SYMBOL_VALUE (symbol); |
bfb96cb7 | 1213 | |
e9ebc175 | 1214 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1215 | { |
999b32fd | 1216 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 | 1217 | int idx = PER_BUFFER_IDX (offset); |
999b32fd GM |
1218 | if (idx > 0 |
1219 | && !bindflag | |
1220 | && !let_shadows_buffer_binding_p (symbol)) | |
f6cd0527 | 1221 | SET_PER_BUFFER_VALUE_P (buf, idx, 1); |
7921925c | 1222 | } |
e9ebc175 KH |
1223 | else if (BUFFER_LOCAL_VALUEP (valcontents) |
1224 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c | 1225 | { |
42e975f0 | 1226 | /* valcontents is a struct Lisp_Buffer_Local_Value. */ |
f35d5bad GM |
1227 | if (XSYMBOL (symbol)->indirect_variable) |
1228 | symbol = indirect_variable (symbol); | |
42e975f0 RS |
1229 | |
1230 | /* What binding is loaded right now? */ | |
b0c2d1c6 | 1231 | current_alist_element |
7539e11f | 1232 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
d8cafeb5 JB |
1233 | |
1234 | /* If the current buffer is not the buffer whose binding is | |
42e975f0 RS |
1235 | loaded, or if there may be frame-local bindings and the frame |
1236 | isn't the right one, or if it's a Lisp_Buffer_Local_Value and | |
1237 | the default binding is loaded, the loaded binding may be the | |
1238 | wrong one. */ | |
8801a864 KR |
1239 | if (!BUFFERP (XBUFFER_LOCAL_VALUE (valcontents)->buffer) |
1240 | || buf != XBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer) | |
42e975f0 RS |
1241 | || (XBUFFER_LOCAL_VALUE (valcontents)->check_frame |
1242 | && !EQ (selected_frame, XBUFFER_LOCAL_VALUE (valcontents)->frame)) | |
1243 | || (BUFFER_LOCAL_VALUEP (valcontents) | |
1244 | && EQ (XCAR (current_alist_element), | |
1245 | current_alist_element))) | |
7921925c | 1246 | { |
42e975f0 RS |
1247 | /* The currently loaded binding is not necessarily valid. |
1248 | We need to unload it, and choose a new binding. */ | |
1249 | ||
1250 | /* Write out `realvalue' to the old loaded binding. */ | |
d8cafeb5 | 1251 | Fsetcdr (current_alist_element, |
b0c2d1c6 | 1252 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); |
7921925c | 1253 | |
42e975f0 | 1254 | /* Find the new binding. */ |
2829d05f | 1255 | tem1 = Fassq (symbol, buf->local_var_alist); |
b0c2d1c6 RS |
1256 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 1; |
1257 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; | |
1258 | ||
a33ef3ab | 1259 | if (NILP (tem1)) |
d8cafeb5 JB |
1260 | { |
1261 | /* This buffer still sees the default value. */ | |
1262 | ||
1263 | /* If the variable is a Lisp_Some_Buffer_Local_Value, | |
05ef7169 | 1264 | or if this is `let' rather than `set', |
d8cafeb5 | 1265 | make CURRENT-ALIST-ELEMENT point to itself, |
1f35ce36 RS |
1266 | indicating that we're seeing the default value. |
1267 | Likewise if the variable has been let-bound | |
1268 | in the current buffer. */ | |
1269 | if (bindflag || SOME_BUFFER_LOCAL_VALUEP (valcontents) | |
1270 | || let_shadows_buffer_binding_p (symbol)) | |
b0c2d1c6 RS |
1271 | { |
1272 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
1273 | ||
1274 | if (XBUFFER_LOCAL_VALUE (valcontents)->check_frame) | |
1cc04aed GM |
1275 | tem1 = Fassq (symbol, |
1276 | XFRAME (selected_frame)->param_alist); | |
d8cafeb5 | 1277 | |
b0c2d1c6 RS |
1278 | if (! NILP (tem1)) |
1279 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 1; | |
1280 | else | |
1281 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
1282 | } | |
05ef7169 | 1283 | /* If it's a Lisp_Buffer_Local_Value, being set not bound, |
1f35ce36 RS |
1284 | and we're not within a let that was made for this buffer, |
1285 | create a new buffer-local binding for the variable. | |
1286 | That means, give this buffer a new assoc for a local value | |
42e975f0 | 1287 | and load that binding. */ |
d8cafeb5 JB |
1288 | else |
1289 | { | |
d2fde41d | 1290 | tem1 = Fcons (symbol, XCDR (current_alist_element)); |
2829d05f RS |
1291 | buf->local_var_alist |
1292 | = Fcons (tem1, buf->local_var_alist); | |
d8cafeb5 JB |
1293 | } |
1294 | } | |
b0c2d1c6 | 1295 | |
42e975f0 | 1296 | /* Record which binding is now loaded. */ |
f3fbd155 KR |
1297 | XSETCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr, |
1298 | tem1); | |
d8cafeb5 | 1299 | |
42e975f0 | 1300 | /* Set `buffer' and `frame' slots for thebinding now loaded. */ |
2829d05f | 1301 | XSETBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer, buf); |
1cc04aed | 1302 | XBUFFER_LOCAL_VALUE (valcontents)->frame = selected_frame; |
7921925c | 1303 | } |
4c47c973 | 1304 | innercontents = XBUFFER_LOCAL_VALUE (valcontents)->realvalue; |
7921925c | 1305 | } |
d8cafeb5 | 1306 | |
7921925c JB |
1307 | /* If storing void (making the symbol void), forward only through |
1308 | buffer-local indicator, not through Lisp_Objfwd, etc. */ | |
1309 | if (voide) | |
7a283f36 | 1310 | store_symval_forwarding (symbol, Qnil, newval, buf); |
7921925c | 1311 | else |
7a283f36 | 1312 | store_symval_forwarding (symbol, innercontents, newval, buf); |
4c47c973 GM |
1313 | |
1314 | /* If we just set a variable whose current binding is frame-local, | |
1315 | store the new value in the frame parameter too. */ | |
1316 | ||
1317 | if (BUFFER_LOCAL_VALUEP (valcontents) | |
1318 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
1319 | { | |
1320 | /* What binding is loaded right now? */ | |
1321 | current_alist_element | |
1322 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); | |
1323 | ||
1324 | /* If the current buffer is not the buffer whose binding is | |
1325 | loaded, or if there may be frame-local bindings and the frame | |
1326 | isn't the right one, or if it's a Lisp_Buffer_Local_Value and | |
1327 | the default binding is loaded, the loaded binding may be the | |
1328 | wrong one. */ | |
1329 | if (XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame) | |
f3fbd155 | 1330 | XSETCDR (current_alist_element, newval); |
4c47c973 | 1331 | } |
d8cafeb5 | 1332 | |
7921925c JB |
1333 | return newval; |
1334 | } | |
1335 | \f | |
1336 | /* Access or set a buffer-local symbol's default value. */ | |
1337 | ||
d9c2a0f2 | 1338 | /* Return the default value of SYMBOL, but don't check for voidness. |
1bfcade3 | 1339 | Return Qunbound if it is void. */ |
7921925c JB |
1340 | |
1341 | Lisp_Object | |
d9c2a0f2 EN |
1342 | default_value (symbol) |
1343 | Lisp_Object symbol; | |
7921925c JB |
1344 | { |
1345 | register Lisp_Object valcontents; | |
1346 | ||
b7826503 | 1347 | CHECK_SYMBOL (symbol); |
f35d5bad | 1348 | valcontents = SYMBOL_VALUE (symbol); |
7921925c JB |
1349 | |
1350 | /* For a built-in buffer-local variable, get the default value | |
1351 | rather than letting do_symval_forwarding get the current value. */ | |
e9ebc175 | 1352 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1353 | { |
999b32fd | 1354 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 GM |
1355 | if (PER_BUFFER_IDX (offset) != 0) |
1356 | return PER_BUFFER_DEFAULT (offset); | |
7921925c JB |
1357 | } |
1358 | ||
1359 | /* Handle user-created local variables. */ | |
e9ebc175 KH |
1360 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1361 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c JB |
1362 | { |
1363 | /* If var is set up for a buffer that lacks a local value for it, | |
1364 | the current value is nominally the default value. | |
42e975f0 | 1365 | But the `realvalue' slot may be more up to date, since |
7921925c JB |
1366 | ordinary setq stores just that slot. So use that. */ |
1367 | Lisp_Object current_alist_element, alist_element_car; | |
1368 | current_alist_element | |
7539e11f KR |
1369 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
1370 | alist_element_car = XCAR (current_alist_element); | |
7921925c | 1371 | if (EQ (alist_element_car, current_alist_element)) |
b0c2d1c6 | 1372 | return do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue); |
7921925c | 1373 | else |
7539e11f | 1374 | return XCDR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
7921925c JB |
1375 | } |
1376 | /* For other variables, get the current value. */ | |
1377 | return do_symval_forwarding (valcontents); | |
1378 | } | |
1379 | ||
1380 | DEFUN ("default-boundp", Fdefault_boundp, Sdefault_boundp, 1, 1, 0, | |
8c1a1077 PJ |
1381 | doc: /* Return t if SYMBOL has a non-void default value. |
1382 | This is the value that is seen in buffers that do not have their own values | |
1383 | for this variable. */) | |
1384 | (symbol) | |
d9c2a0f2 | 1385 | Lisp_Object symbol; |
7921925c JB |
1386 | { |
1387 | register Lisp_Object value; | |
1388 | ||
d9c2a0f2 | 1389 | value = default_value (symbol); |
1bfcade3 | 1390 | return (EQ (value, Qunbound) ? Qnil : Qt); |
7921925c JB |
1391 | } |
1392 | ||
1393 | DEFUN ("default-value", Fdefault_value, Sdefault_value, 1, 1, 0, | |
8c1a1077 PJ |
1394 | doc: /* Return SYMBOL's default value. |
1395 | This is the value that is seen in buffers that do not have their own values | |
1396 | for this variable. The default value is meaningful for variables with | |
1397 | local bindings in certain buffers. */) | |
1398 | (symbol) | |
d9c2a0f2 | 1399 | Lisp_Object symbol; |
7921925c JB |
1400 | { |
1401 | register Lisp_Object value; | |
1402 | ||
d9c2a0f2 | 1403 | value = default_value (symbol); |
1bfcade3 | 1404 | if (EQ (value, Qunbound)) |
d9c2a0f2 | 1405 | return Fsignal (Qvoid_variable, Fcons (symbol, Qnil)); |
7921925c JB |
1406 | return value; |
1407 | } | |
1408 | ||
1409 | DEFUN ("set-default", Fset_default, Sset_default, 2, 2, 0, | |
6e86a75d | 1410 | doc: /* Set SYMBOL's default value to VALUE. SYMBOL and VALUE are evaluated. |
8c1a1077 PJ |
1411 | The default value is seen in buffers that do not have their own values |
1412 | for this variable. */) | |
1413 | (symbol, value) | |
d9c2a0f2 | 1414 | Lisp_Object symbol, value; |
7921925c JB |
1415 | { |
1416 | register Lisp_Object valcontents, current_alist_element, alist_element_buffer; | |
1417 | ||
b7826503 | 1418 | CHECK_SYMBOL (symbol); |
f35d5bad | 1419 | valcontents = SYMBOL_VALUE (symbol); |
7921925c JB |
1420 | |
1421 | /* Handle variables like case-fold-search that have special slots | |
1422 | in the buffer. Make them work apparently like Lisp_Buffer_Local_Value | |
1423 | variables. */ | |
e9ebc175 | 1424 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1425 | { |
999b32fd | 1426 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 | 1427 | int idx = PER_BUFFER_IDX (offset); |
7921925c | 1428 | |
f6cd0527 | 1429 | PER_BUFFER_DEFAULT (offset) = value; |
984ef137 KH |
1430 | |
1431 | /* If this variable is not always local in all buffers, | |
1432 | set it in the buffers that don't nominally have a local value. */ | |
999b32fd | 1433 | if (idx > 0) |
7921925c | 1434 | { |
999b32fd | 1435 | struct buffer *b; |
bfb96cb7 | 1436 | |
7921925c | 1437 | for (b = all_buffers; b; b = b->next) |
f6cd0527 GM |
1438 | if (!PER_BUFFER_VALUE_P (b, idx)) |
1439 | PER_BUFFER_VALUE (b, offset) = value; | |
7921925c JB |
1440 | } |
1441 | return value; | |
1442 | } | |
1443 | ||
e9ebc175 KH |
1444 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1445 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 1446 | return Fset (symbol, value); |
7921925c | 1447 | |
42e975f0 | 1448 | /* Store new value into the DEFAULT-VALUE slot. */ |
f3fbd155 | 1449 | XSETCDR (XBUFFER_LOCAL_VALUE (valcontents)->cdr, value); |
7921925c | 1450 | |
42e975f0 | 1451 | /* If the default binding is now loaded, set the REALVALUE slot too. */ |
8d4afcac | 1452 | current_alist_element |
7539e11f | 1453 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
7921925c JB |
1454 | alist_element_buffer = Fcar (current_alist_element); |
1455 | if (EQ (alist_element_buffer, current_alist_element)) | |
7a283f36 GM |
1456 | store_symval_forwarding (symbol, |
1457 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue, | |
1458 | value, NULL); | |
7921925c JB |
1459 | |
1460 | return value; | |
1461 | } | |
1462 | ||
1463 | DEFUN ("setq-default", Fsetq_default, Ssetq_default, 2, UNEVALLED, 0, | |
8c1a1077 PJ |
1464 | doc: /* Set the default value of variable VAR to VALUE. |
1465 | VAR, the variable name, is literal (not evaluated); | |
bfb96cb7 | 1466 | VALUE is an expression: it is evaluated and its value returned. |
8c1a1077 PJ |
1467 | The default value of a variable is seen in buffers |
1468 | that do not have their own values for the variable. | |
1469 | ||
1470 | More generally, you can use multiple variables and values, as in | |
948d2995 JB |
1471 | (setq-default VAR VALUE VAR VALUE...) |
1472 | This sets each VAR's default value to the corresponding VALUE. | |
1473 | The VALUE for the Nth VAR can refer to the new default values | |
1474 | of previous VARs. | |
1475 | usage: (setq-default VAR VALUE [VAR VALUE...]) */) | |
8c1a1077 | 1476 | (args) |
7921925c JB |
1477 | Lisp_Object args; |
1478 | { | |
1479 | register Lisp_Object args_left; | |
d9c2a0f2 | 1480 | register Lisp_Object val, symbol; |
7921925c JB |
1481 | struct gcpro gcpro1; |
1482 | ||
a33ef3ab | 1483 | if (NILP (args)) |
7921925c JB |
1484 | return Qnil; |
1485 | ||
1486 | args_left = args; | |
1487 | GCPRO1 (args); | |
1488 | ||
1489 | do | |
1490 | { | |
1491 | val = Feval (Fcar (Fcdr (args_left))); | |
d2fde41d | 1492 | symbol = XCAR (args_left); |
d9c2a0f2 | 1493 | Fset_default (symbol, val); |
d2fde41d | 1494 | args_left = Fcdr (XCDR (args_left)); |
7921925c | 1495 | } |
a33ef3ab | 1496 | while (!NILP (args_left)); |
7921925c JB |
1497 | |
1498 | UNGCPRO; | |
1499 | return val; | |
1500 | } | |
1501 | \f | |
a5ca2b75 JB |
1502 | /* Lisp functions for creating and removing buffer-local variables. */ |
1503 | ||
7921925c | 1504 | DEFUN ("make-variable-buffer-local", Fmake_variable_buffer_local, Smake_variable_buffer_local, |
8c1a1077 PJ |
1505 | 1, 1, "vMake Variable Buffer Local: ", |
1506 | doc: /* Make VARIABLE become buffer-local whenever it is set. | |
1507 | At any time, the value for the current buffer is in effect, | |
1508 | unless the variable has never been set in this buffer, | |
1509 | in which case the default value is in effect. | |
1510 | Note that binding the variable with `let', or setting it while | |
1511 | a `let'-style binding made in this buffer is in effect, | |
bfb96cb7 | 1512 | does not make the variable buffer-local. Return VARIABLE. |
8c1a1077 PJ |
1513 | |
1514 | The function `default-value' gets the default value and `set-default' sets it. */) | |
1515 | (variable) | |
d9c2a0f2 | 1516 | register Lisp_Object variable; |
7921925c | 1517 | { |
8d4afcac | 1518 | register Lisp_Object tem, valcontents, newval; |
7921925c | 1519 | |
b7826503 | 1520 | CHECK_SYMBOL (variable); |
14970b45 | 1521 | variable = indirect_variable (variable); |
7921925c | 1522 | |
f35d5bad | 1523 | valcontents = SYMBOL_VALUE (variable); |
d9c2a0f2 | 1524 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents)) |
d5db4077 | 1525 | error ("Symbol %s may not be buffer-local", SDATA (SYMBOL_NAME (variable))); |
7921925c | 1526 | |
e9ebc175 | 1527 | if (BUFFER_LOCAL_VALUEP (valcontents) || BUFFER_OBJFWDP (valcontents)) |
d9c2a0f2 | 1528 | return variable; |
e9ebc175 | 1529 | if (SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c | 1530 | { |
f35d5bad | 1531 | XMISCTYPE (SYMBOL_VALUE (variable)) = Lisp_Misc_Buffer_Local_Value; |
d9c2a0f2 | 1532 | return variable; |
7921925c JB |
1533 | } |
1534 | if (EQ (valcontents, Qunbound)) | |
f35d5bad | 1535 | SET_SYMBOL_VALUE (variable, Qnil); |
d9c2a0f2 | 1536 | tem = Fcons (Qnil, Fsymbol_value (variable)); |
f3fbd155 | 1537 | XSETCAR (tem, tem); |
8d4afcac | 1538 | newval = allocate_misc (); |
324a6eef | 1539 | XMISCTYPE (newval) = Lisp_Misc_Buffer_Local_Value; |
f35d5bad | 1540 | XBUFFER_LOCAL_VALUE (newval)->realvalue = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1541 | XBUFFER_LOCAL_VALUE (newval)->buffer = Fcurrent_buffer (); |
1542 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
42e975f0 | 1543 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; |
b0c2d1c6 RS |
1544 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; |
1545 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 0; | |
1546 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
f35d5bad | 1547 | SET_SYMBOL_VALUE (variable, newval); |
d9c2a0f2 | 1548 | return variable; |
7921925c JB |
1549 | } |
1550 | ||
1551 | DEFUN ("make-local-variable", Fmake_local_variable, Smake_local_variable, | |
8c1a1077 PJ |
1552 | 1, 1, "vMake Local Variable: ", |
1553 | doc: /* Make VARIABLE have a separate value in the current buffer. | |
1554 | Other buffers will continue to share a common default value. | |
1555 | \(The buffer-local value of VARIABLE starts out as the same value | |
1556 | VARIABLE previously had. If VARIABLE was void, it remains void.\) | |
bfb96cb7 | 1557 | See also `make-variable-buffer-local'. Return VARIABLE. |
8c1a1077 PJ |
1558 | |
1559 | If the variable is already arranged to become local when set, | |
1560 | this function causes a local value to exist for this buffer, | |
1561 | just as setting the variable would do. | |
1562 | ||
1563 | This function returns VARIABLE, and therefore | |
1564 | (set (make-local-variable 'VARIABLE) VALUE-EXP) | |
1565 | works. | |
1566 | ||
1567 | Do not use `make-local-variable' to make a hook variable buffer-local. | |
515f3f25 | 1568 | Instead, use `add-hook' and specify t for the LOCAL argument. */) |
8c1a1077 | 1569 | (variable) |
d9c2a0f2 | 1570 | register Lisp_Object variable; |
7921925c JB |
1571 | { |
1572 | register Lisp_Object tem, valcontents; | |
1573 | ||
b7826503 | 1574 | CHECK_SYMBOL (variable); |
14970b45 | 1575 | variable = indirect_variable (variable); |
7921925c | 1576 | |
f35d5bad | 1577 | valcontents = SYMBOL_VALUE (variable); |
d9c2a0f2 | 1578 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents)) |
d5db4077 | 1579 | error ("Symbol %s may not be buffer-local", SDATA (SYMBOL_NAME (variable))); |
7921925c | 1580 | |
e9ebc175 | 1581 | if (BUFFER_LOCAL_VALUEP (valcontents) || BUFFER_OBJFWDP (valcontents)) |
7921925c | 1582 | { |
d9c2a0f2 | 1583 | tem = Fboundp (variable); |
7403b5c8 | 1584 | |
7921925c JB |
1585 | /* Make sure the symbol has a local value in this particular buffer, |
1586 | by setting it to the same value it already has. */ | |
d9c2a0f2 EN |
1587 | Fset (variable, (EQ (tem, Qt) ? Fsymbol_value (variable) : Qunbound)); |
1588 | return variable; | |
7921925c | 1589 | } |
42e975f0 | 1590 | /* Make sure symbol is set up to hold per-buffer values. */ |
e9ebc175 | 1591 | if (!SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c | 1592 | { |
8d4afcac | 1593 | Lisp_Object newval; |
7921925c | 1594 | tem = Fcons (Qnil, do_symval_forwarding (valcontents)); |
f3fbd155 | 1595 | XSETCAR (tem, tem); |
8d4afcac | 1596 | newval = allocate_misc (); |
324a6eef | 1597 | XMISCTYPE (newval) = Lisp_Misc_Some_Buffer_Local_Value; |
f35d5bad | 1598 | XBUFFER_LOCAL_VALUE (newval)->realvalue = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1599 | XBUFFER_LOCAL_VALUE (newval)->buffer = Qnil; |
1600 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
1601 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; | |
1602 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; | |
1603 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 0; | |
1604 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
f35d5bad | 1605 | SET_SYMBOL_VALUE (variable, newval);; |
7921925c | 1606 | } |
42e975f0 | 1607 | /* Make sure this buffer has its own value of symbol. */ |
d9c2a0f2 | 1608 | tem = Fassq (variable, current_buffer->local_var_alist); |
a33ef3ab | 1609 | if (NILP (tem)) |
7921925c | 1610 | { |
a5d004a1 RS |
1611 | /* Swap out any local binding for some other buffer, and make |
1612 | sure the current value is permanently recorded, if it's the | |
1613 | default value. */ | |
d9c2a0f2 | 1614 | find_symbol_value (variable); |
a5d004a1 | 1615 | |
7921925c | 1616 | current_buffer->local_var_alist |
f35d5bad | 1617 | = Fcons (Fcons (variable, XCDR (XBUFFER_LOCAL_VALUE (SYMBOL_VALUE (variable))->cdr)), |
7921925c JB |
1618 | current_buffer->local_var_alist); |
1619 | ||
1620 | /* Make sure symbol does not think it is set up for this buffer; | |
42e975f0 | 1621 | force it to look once again for this buffer's value. */ |
7921925c | 1622 | { |
8d4afcac | 1623 | Lisp_Object *pvalbuf; |
a5d004a1 | 1624 | |
f35d5bad | 1625 | valcontents = SYMBOL_VALUE (variable); |
a5d004a1 | 1626 | |
b0c2d1c6 | 1627 | pvalbuf = &XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
8d4afcac KH |
1628 | if (current_buffer == XBUFFER (*pvalbuf)) |
1629 | *pvalbuf = Qnil; | |
b0c2d1c6 | 1630 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; |
7921925c | 1631 | } |
7921925c | 1632 | } |
a5ca2b75 | 1633 | |
42e975f0 RS |
1634 | /* If the symbol forwards into a C variable, then load the binding |
1635 | for this buffer now. If C code modifies the variable before we | |
1636 | load the binding in, then that new value will clobber the default | |
1637 | binding the next time we unload it. */ | |
f35d5bad | 1638 | valcontents = XBUFFER_LOCAL_VALUE (SYMBOL_VALUE (variable))->realvalue; |
e9ebc175 | 1639 | if (INTFWDP (valcontents) || BOOLFWDP (valcontents) || OBJFWDP (valcontents)) |
f35d5bad | 1640 | swap_in_symval_forwarding (variable, SYMBOL_VALUE (variable)); |
a5ca2b75 | 1641 | |
d9c2a0f2 | 1642 | return variable; |
7921925c JB |
1643 | } |
1644 | ||
1645 | DEFUN ("kill-local-variable", Fkill_local_variable, Skill_local_variable, | |
8c1a1077 PJ |
1646 | 1, 1, "vKill Local Variable: ", |
1647 | doc: /* Make VARIABLE no longer have a separate value in the current buffer. | |
bfb96cb7 | 1648 | From now on the default value will apply in this buffer. Return VARIABLE. */) |
8c1a1077 | 1649 | (variable) |
d9c2a0f2 | 1650 | register Lisp_Object variable; |
7921925c JB |
1651 | { |
1652 | register Lisp_Object tem, valcontents; | |
1653 | ||
b7826503 | 1654 | CHECK_SYMBOL (variable); |
14970b45 | 1655 | variable = indirect_variable (variable); |
7921925c | 1656 | |
f35d5bad | 1657 | valcontents = SYMBOL_VALUE (variable); |
7921925c | 1658 | |
e9ebc175 | 1659 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1660 | { |
999b32fd | 1661 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 | 1662 | int idx = PER_BUFFER_IDX (offset); |
7921925c | 1663 | |
999b32fd | 1664 | if (idx > 0) |
7921925c | 1665 | { |
f6cd0527 GM |
1666 | SET_PER_BUFFER_VALUE_P (current_buffer, idx, 0); |
1667 | PER_BUFFER_VALUE (current_buffer, offset) | |
1668 | = PER_BUFFER_DEFAULT (offset); | |
7921925c | 1669 | } |
d9c2a0f2 | 1670 | return variable; |
7921925c JB |
1671 | } |
1672 | ||
e9ebc175 KH |
1673 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1674 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 1675 | return variable; |
7921925c | 1676 | |
42e975f0 | 1677 | /* Get rid of this buffer's alist element, if any. */ |
7921925c | 1678 | |
d9c2a0f2 | 1679 | tem = Fassq (variable, current_buffer->local_var_alist); |
a33ef3ab | 1680 | if (!NILP (tem)) |
8d4afcac KH |
1681 | current_buffer->local_var_alist |
1682 | = Fdelq (tem, current_buffer->local_var_alist); | |
7921925c | 1683 | |
42e975f0 RS |
1684 | /* If the symbol is set up with the current buffer's binding |
1685 | loaded, recompute its value. We have to do it now, or else | |
1686 | forwarded objects won't work right. */ | |
7921925c | 1687 | { |
999e6484 | 1688 | Lisp_Object *pvalbuf, buf; |
f35d5bad | 1689 | valcontents = SYMBOL_VALUE (variable); |
b0c2d1c6 | 1690 | pvalbuf = &XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
999e6484 SM |
1691 | XSETBUFFER (buf, current_buffer); |
1692 | if (EQ (buf, *pvalbuf)) | |
79c83e03 KH |
1693 | { |
1694 | *pvalbuf = Qnil; | |
b0c2d1c6 | 1695 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; |
978dd578 | 1696 | find_symbol_value (variable); |
79c83e03 | 1697 | } |
7921925c JB |
1698 | } |
1699 | ||
d9c2a0f2 | 1700 | return variable; |
7921925c | 1701 | } |
62476adc | 1702 | |
b0c2d1c6 RS |
1703 | /* Lisp functions for creating and removing buffer-local variables. */ |
1704 | ||
1705 | DEFUN ("make-variable-frame-local", Fmake_variable_frame_local, Smake_variable_frame_local, | |
8c1a1077 PJ |
1706 | 1, 1, "vMake Variable Frame Local: ", |
1707 | doc: /* Enable VARIABLE to have frame-local bindings. | |
1708 | When a frame-local binding exists in the current frame, | |
1709 | it is in effect whenever the current buffer has no buffer-local binding. | |
76b3cecf | 1710 | A frame-local binding is actually a frame parameter value; |
bfb96cb7 FP |
1711 | thus, any given frame has a local binding for VARIABLE if it has |
1712 | a value for the frame parameter named VARIABLE. Return VARIABLE. | |
76b3cecf | 1713 | See `modify-frame-parameters' for how to set frame parameters. */) |
8c1a1077 | 1714 | (variable) |
b0c2d1c6 RS |
1715 | register Lisp_Object variable; |
1716 | { | |
1717 | register Lisp_Object tem, valcontents, newval; | |
1718 | ||
b7826503 | 1719 | CHECK_SYMBOL (variable); |
14970b45 | 1720 | variable = indirect_variable (variable); |
b0c2d1c6 | 1721 | |
f35d5bad | 1722 | valcontents = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1723 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents) |
1724 | || BUFFER_OBJFWDP (valcontents)) | |
d5db4077 | 1725 | error ("Symbol %s may not be frame-local", SDATA (SYMBOL_NAME (variable))); |
b0c2d1c6 RS |
1726 | |
1727 | if (BUFFER_LOCAL_VALUEP (valcontents) | |
1728 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
42e975f0 RS |
1729 | { |
1730 | XBUFFER_LOCAL_VALUE (valcontents)->check_frame = 1; | |
1731 | return variable; | |
1732 | } | |
b0c2d1c6 RS |
1733 | |
1734 | if (EQ (valcontents, Qunbound)) | |
f35d5bad | 1735 | SET_SYMBOL_VALUE (variable, Qnil); |
b0c2d1c6 | 1736 | tem = Fcons (Qnil, Fsymbol_value (variable)); |
f3fbd155 | 1737 | XSETCAR (tem, tem); |
b0c2d1c6 RS |
1738 | newval = allocate_misc (); |
1739 | XMISCTYPE (newval) = Lisp_Misc_Some_Buffer_Local_Value; | |
f35d5bad | 1740 | XBUFFER_LOCAL_VALUE (newval)->realvalue = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1741 | XBUFFER_LOCAL_VALUE (newval)->buffer = Qnil; |
1742 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
1743 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; | |
1744 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; | |
1745 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 1; | |
1746 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
f35d5bad | 1747 | SET_SYMBOL_VALUE (variable, newval); |
b0c2d1c6 RS |
1748 | return variable; |
1749 | } | |
1750 | ||
62476adc | 1751 | DEFUN ("local-variable-p", Flocal_variable_p, Slocal_variable_p, |
8c1a1077 PJ |
1752 | 1, 2, 0, |
1753 | doc: /* Non-nil if VARIABLE has a local binding in buffer BUFFER. | |
1754 | BUFFER defaults to the current buffer. */) | |
1755 | (variable, buffer) | |
d9c2a0f2 | 1756 | register Lisp_Object variable, buffer; |
62476adc RS |
1757 | { |
1758 | Lisp_Object valcontents; | |
c48ead86 KH |
1759 | register struct buffer *buf; |
1760 | ||
1761 | if (NILP (buffer)) | |
1762 | buf = current_buffer; | |
1763 | else | |
1764 | { | |
b7826503 | 1765 | CHECK_BUFFER (buffer); |
c48ead86 KH |
1766 | buf = XBUFFER (buffer); |
1767 | } | |
62476adc | 1768 | |
b7826503 | 1769 | CHECK_SYMBOL (variable); |
14970b45 | 1770 | variable = indirect_variable (variable); |
62476adc | 1771 | |
f35d5bad | 1772 | valcontents = SYMBOL_VALUE (variable); |
c48ead86 | 1773 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1e5f16fa | 1774 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
c48ead86 KH |
1775 | { |
1776 | Lisp_Object tail, elt; | |
f35d5bad | 1777 | |
7539e11f | 1778 | for (tail = buf->local_var_alist; CONSP (tail); tail = XCDR (tail)) |
c48ead86 | 1779 | { |
7539e11f KR |
1780 | elt = XCAR (tail); |
1781 | if (EQ (variable, XCAR (elt))) | |
c48ead86 KH |
1782 | return Qt; |
1783 | } | |
1784 | } | |
1785 | if (BUFFER_OBJFWDP (valcontents)) | |
1786 | { | |
1787 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
f6cd0527 GM |
1788 | int idx = PER_BUFFER_IDX (offset); |
1789 | if (idx == -1 || PER_BUFFER_VALUE_P (buf, idx)) | |
c48ead86 KH |
1790 | return Qt; |
1791 | } | |
1792 | return Qnil; | |
62476adc | 1793 | } |
f4f04cee RS |
1794 | |
1795 | DEFUN ("local-variable-if-set-p", Flocal_variable_if_set_p, Slocal_variable_if_set_p, | |
8c1a1077 PJ |
1796 | 1, 2, 0, |
1797 | doc: /* Non-nil if VARIABLE will be local in buffer BUFFER if it is set there. | |
1798 | BUFFER defaults to the current buffer. */) | |
1799 | (variable, buffer) | |
d9c2a0f2 | 1800 | register Lisp_Object variable, buffer; |
f4f04cee RS |
1801 | { |
1802 | Lisp_Object valcontents; | |
1803 | register struct buffer *buf; | |
1804 | ||
1805 | if (NILP (buffer)) | |
1806 | buf = current_buffer; | |
1807 | else | |
1808 | { | |
b7826503 | 1809 | CHECK_BUFFER (buffer); |
f4f04cee RS |
1810 | buf = XBUFFER (buffer); |
1811 | } | |
1812 | ||
b7826503 | 1813 | CHECK_SYMBOL (variable); |
14970b45 | 1814 | variable = indirect_variable (variable); |
f4f04cee | 1815 | |
f35d5bad | 1816 | valcontents = SYMBOL_VALUE (variable); |
f4f04cee RS |
1817 | |
1818 | /* This means that make-variable-buffer-local was done. */ | |
1819 | if (BUFFER_LOCAL_VALUEP (valcontents)) | |
1820 | return Qt; | |
1821 | /* All these slots become local if they are set. */ | |
1822 | if (BUFFER_OBJFWDP (valcontents)) | |
1823 | return Qt; | |
1824 | if (SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
1825 | { | |
1826 | Lisp_Object tail, elt; | |
7539e11f | 1827 | for (tail = buf->local_var_alist; CONSP (tail); tail = XCDR (tail)) |
f4f04cee | 1828 | { |
7539e11f KR |
1829 | elt = XCAR (tail); |
1830 | if (EQ (variable, XCAR (elt))) | |
f4f04cee RS |
1831 | return Qt; |
1832 | } | |
1833 | } | |
1834 | return Qnil; | |
1835 | } | |
0a2546d4 RS |
1836 | |
1837 | DEFUN ("variable-binding-locus", Fvariable_binding_locus, Svariable_binding_locus, | |
1838 | 1, 1, 0, | |
1839 | doc: /* Return a value indicating where VARIABLE's current binding comes from. | |
1840 | If the current binding is buffer-local, the value is the current buffer. | |
1841 | If the current binding is frame-local, the value is the selected frame. | |
1842 | If the current binding is global (the default), the value is nil. */) | |
1843 | (variable) | |
1844 | register Lisp_Object variable; | |
1845 | { | |
1846 | Lisp_Object valcontents; | |
1847 | ||
1848 | CHECK_SYMBOL (variable); | |
1849 | variable = indirect_variable (variable); | |
1850 | ||
1851 | /* Make sure the current binding is actually swapped in. */ | |
1852 | find_symbol_value (variable); | |
1853 | ||
1854 | valcontents = XSYMBOL (variable)->value; | |
1855 | ||
1856 | if (BUFFER_LOCAL_VALUEP (valcontents) | |
1857 | || SOME_BUFFER_LOCAL_VALUEP (valcontents) | |
1858 | || BUFFER_OBJFWDP (valcontents)) | |
1859 | { | |
1860 | /* For a local variable, record both the symbol and which | |
1861 | buffer's or frame's value we are saving. */ | |
1862 | if (!NILP (Flocal_variable_p (variable, Qnil))) | |
1863 | return Fcurrent_buffer (); | |
1864 | else if (!BUFFER_OBJFWDP (valcontents) | |
1865 | && XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame) | |
1866 | return XBUFFER_LOCAL_VALUE (valcontents)->frame; | |
1867 | } | |
1868 | ||
1869 | return Qnil; | |
1870 | } | |
7921925c | 1871 | \f |
ffd56f97 JB |
1872 | /* Find the function at the end of a chain of symbol function indirections. */ |
1873 | ||
1874 | /* If OBJECT is a symbol, find the end of its function chain and | |
1875 | return the value found there. If OBJECT is not a symbol, just | |
1876 | return it. If there is a cycle in the function chain, signal a | |
1877 | cyclic-function-indirection error. | |
1878 | ||
1879 | This is like Findirect_function, except that it doesn't signal an | |
1880 | error if the chain ends up unbound. */ | |
1881 | Lisp_Object | |
a2932990 | 1882 | indirect_function (object) |
62476adc | 1883 | register Lisp_Object object; |
ffd56f97 | 1884 | { |
eb8c3be9 | 1885 | Lisp_Object tortoise, hare; |
ffd56f97 | 1886 | |
eb8c3be9 | 1887 | hare = tortoise = object; |
ffd56f97 JB |
1888 | |
1889 | for (;;) | |
1890 | { | |
e9ebc175 | 1891 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
1892 | break; |
1893 | hare = XSYMBOL (hare)->function; | |
e9ebc175 | 1894 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
1895 | break; |
1896 | hare = XSYMBOL (hare)->function; | |
1897 | ||
eb8c3be9 | 1898 | tortoise = XSYMBOL (tortoise)->function; |
ffd56f97 | 1899 | |
eb8c3be9 | 1900 | if (EQ (hare, tortoise)) |
ffd56f97 JB |
1901 | Fsignal (Qcyclic_function_indirection, Fcons (object, Qnil)); |
1902 | } | |
1903 | ||
1904 | return hare; | |
1905 | } | |
1906 | ||
1907 | DEFUN ("indirect-function", Findirect_function, Sindirect_function, 1, 1, 0, | |
8c1a1077 PJ |
1908 | doc: /* Return the function at the end of OBJECT's function chain. |
1909 | If OBJECT is a symbol, follow all function indirections and return the final | |
1910 | function binding. | |
1911 | If OBJECT is not a symbol, just return it. | |
1912 | Signal a void-function error if the final symbol is unbound. | |
1913 | Signal a cyclic-function-indirection error if there is a loop in the | |
1914 | function chain of symbols. */) | |
1915 | (object) | |
1916 | register Lisp_Object object; | |
ffd56f97 JB |
1917 | { |
1918 | Lisp_Object result; | |
1919 | ||
1920 | result = indirect_function (object); | |
1921 | ||
1922 | if (EQ (result, Qunbound)) | |
1923 | return Fsignal (Qvoid_function, Fcons (object, Qnil)); | |
1924 | return result; | |
1925 | } | |
1926 | \f | |
7921925c JB |
1927 | /* Extract and set vector and string elements */ |
1928 | ||
1929 | DEFUN ("aref", Faref, Saref, 2, 2, 0, | |
8c1a1077 PJ |
1930 | doc: /* Return the element of ARRAY at index IDX. |
1931 | ARRAY may be a vector, a string, a char-table, a bool-vector, | |
1932 | or a byte-code object. IDX starts at 0. */) | |
1933 | (array, idx) | |
7921925c JB |
1934 | register Lisp_Object array; |
1935 | Lisp_Object idx; | |
1936 | { | |
1937 | register int idxval; | |
1938 | ||
b7826503 | 1939 | CHECK_NUMBER (idx); |
7921925c | 1940 | idxval = XINT (idx); |
e9ebc175 | 1941 | if (STRINGP (array)) |
7921925c | 1942 | { |
25638b07 RS |
1943 | int c, idxval_byte; |
1944 | ||
d5db4077 | 1945 | if (idxval < 0 || idxval >= SCHARS (array)) |
c24e4efe | 1946 | args_out_of_range (array, idx); |
25638b07 | 1947 | if (! STRING_MULTIBYTE (array)) |
d5db4077 | 1948 | return make_number ((unsigned char) SREF (array, idxval)); |
25638b07 RS |
1949 | idxval_byte = string_char_to_byte (array, idxval); |
1950 | ||
29f44a37 | 1951 | c = STRING_CHAR (SDATA (array) + idxval_byte, |
d5db4077 | 1952 | SBYTES (array) - idxval_byte); |
25638b07 | 1953 | return make_number (c); |
7921925c | 1954 | } |
4d276982 RS |
1955 | else if (BOOL_VECTOR_P (array)) |
1956 | { | |
1957 | int val; | |
4d276982 RS |
1958 | |
1959 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
1960 | args_out_of_range (array, idx); | |
1961 | ||
b9ed2177 AS |
1962 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR]; |
1963 | return (val & (1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR)) ? Qt : Qnil); | |
4d276982 RS |
1964 | } |
1965 | else if (CHAR_TABLE_P (array)) | |
1966 | { | |
1967 | Lisp_Object val; | |
1968 | ||
6bbd7a29 GM |
1969 | val = Qnil; |
1970 | ||
4d276982 RS |
1971 | if (idxval < 0) |
1972 | args_out_of_range (array, idx); | |
ab5c3f93 | 1973 | if (idxval < CHAR_TABLE_ORDINARY_SLOTS) |
8313c4e7 | 1974 | { |
39e16e51 | 1975 | /* For ASCII and 8-bit European characters, the element is |
3a6cf6bd | 1976 | stored in the top table. */ |
8313c4e7 KH |
1977 | val = XCHAR_TABLE (array)->contents[idxval]; |
1978 | if (NILP (val)) | |
1979 | val = XCHAR_TABLE (array)->defalt; | |
1980 | while (NILP (val)) /* Follow parents until we find some value. */ | |
1981 | { | |
1982 | array = XCHAR_TABLE (array)->parent; | |
1983 | if (NILP (array)) | |
1984 | return Qnil; | |
1985 | val = XCHAR_TABLE (array)->contents[idxval]; | |
1986 | if (NILP (val)) | |
1987 | val = XCHAR_TABLE (array)->defalt; | |
1988 | } | |
1989 | return val; | |
1990 | } | |
4d276982 RS |
1991 | else |
1992 | { | |
39e16e51 KH |
1993 | int code[4], i; |
1994 | Lisp_Object sub_table; | |
8313c4e7 | 1995 | |
37309c9d | 1996 | SPLIT_CHAR (idxval, code[0], code[1], code[2]); |
e19c1eb4 KH |
1997 | if (code[1] < 32) code[1] = -1; |
1998 | else if (code[2] < 32) code[2] = -1; | |
1999 | ||
39e16e51 KH |
2000 | /* Here, the possible range of CODE[0] (== charset ID) is |
2001 | 128..MAX_CHARSET. Since the top level char table contains | |
2002 | data for multibyte characters after 256th element, we must | |
2003 | increment CODE[0] by 128 to get a correct index. */ | |
2004 | code[0] += 128; | |
2005 | code[3] = -1; /* anchor */ | |
4d276982 RS |
2006 | |
2007 | try_parent_char_table: | |
39e16e51 KH |
2008 | sub_table = array; |
2009 | for (i = 0; code[i] >= 0; i++) | |
4d276982 | 2010 | { |
39e16e51 KH |
2011 | val = XCHAR_TABLE (sub_table)->contents[code[i]]; |
2012 | if (SUB_CHAR_TABLE_P (val)) | |
2013 | sub_table = val; | |
2014 | else | |
8313c4e7 | 2015 | { |
39e16e51 KH |
2016 | if (NILP (val)) |
2017 | val = XCHAR_TABLE (sub_table)->defalt; | |
2018 | if (NILP (val)) | |
2019 | { | |
2020 | array = XCHAR_TABLE (array)->parent; | |
2021 | if (!NILP (array)) | |
2022 | goto try_parent_char_table; | |
2023 | } | |
2024 | return val; | |
8313c4e7 | 2025 | } |
4d276982 | 2026 | } |
39e16e51 KH |
2027 | /* Here, VAL is a sub char table. We try the default value |
2028 | and parent. */ | |
2029 | val = XCHAR_TABLE (val)->defalt; | |
8313c4e7 | 2030 | if (NILP (val)) |
4d276982 RS |
2031 | { |
2032 | array = XCHAR_TABLE (array)->parent; | |
39e16e51 KH |
2033 | if (!NILP (array)) |
2034 | goto try_parent_char_table; | |
4d276982 | 2035 | } |
4d276982 RS |
2036 | return val; |
2037 | } | |
4d276982 | 2038 | } |
7921925c | 2039 | else |
c24e4efe | 2040 | { |
6bbd7a29 | 2041 | int size = 0; |
7f358972 RS |
2042 | if (VECTORP (array)) |
2043 | size = XVECTOR (array)->size; | |
2044 | else if (COMPILEDP (array)) | |
2045 | size = XVECTOR (array)->size & PSEUDOVECTOR_SIZE_MASK; | |
2046 | else | |
2047 | wrong_type_argument (Qarrayp, array); | |
2048 | ||
2049 | if (idxval < 0 || idxval >= size) | |
c24e4efe KH |
2050 | args_out_of_range (array, idx); |
2051 | return XVECTOR (array)->contents[idxval]; | |
2052 | } | |
7921925c JB |
2053 | } |
2054 | ||
2055 | DEFUN ("aset", Faset, Saset, 3, 3, 0, | |
8c1a1077 | 2056 | doc: /* Store into the element of ARRAY at index IDX the value NEWELT. |
bfb96cb7 FP |
2057 | Return NEWELT. ARRAY may be a vector, a string, a char-table or a |
2058 | bool-vector. IDX starts at 0. */) | |
8c1a1077 | 2059 | (array, idx, newelt) |
7921925c JB |
2060 | register Lisp_Object array; |
2061 | Lisp_Object idx, newelt; | |
2062 | { | |
2063 | register int idxval; | |
2064 | ||
b7826503 | 2065 | CHECK_NUMBER (idx); |
7921925c | 2066 | idxval = XINT (idx); |
4d276982 RS |
2067 | if (!VECTORP (array) && !STRINGP (array) && !BOOL_VECTOR_P (array) |
2068 | && ! CHAR_TABLE_P (array)) | |
7921925c | 2069 | array = wrong_type_argument (Qarrayp, array); |
7921925c JB |
2070 | CHECK_IMPURE (array); |
2071 | ||
e9ebc175 | 2072 | if (VECTORP (array)) |
c24e4efe KH |
2073 | { |
2074 | if (idxval < 0 || idxval >= XVECTOR (array)->size) | |
2075 | args_out_of_range (array, idx); | |
2076 | XVECTOR (array)->contents[idxval] = newelt; | |
2077 | } | |
4d276982 RS |
2078 | else if (BOOL_VECTOR_P (array)) |
2079 | { | |
2080 | int val; | |
4d276982 RS |
2081 | |
2082 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
2083 | args_out_of_range (array, idx); | |
2084 | ||
b9ed2177 | 2085 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR]; |
4d276982 RS |
2086 | |
2087 | if (! NILP (newelt)) | |
b9ed2177 | 2088 | val |= 1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR); |
4d276982 | 2089 | else |
b9ed2177 AS |
2090 | val &= ~(1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR)); |
2091 | XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR] = val; | |
4d276982 RS |
2092 | } |
2093 | else if (CHAR_TABLE_P (array)) | |
2094 | { | |
4d276982 RS |
2095 | if (idxval < 0) |
2096 | args_out_of_range (array, idx); | |
ab5c3f93 | 2097 | if (idxval < CHAR_TABLE_ORDINARY_SLOTS) |
8313c4e7 | 2098 | XCHAR_TABLE (array)->contents[idxval] = newelt; |
4d276982 RS |
2099 | else |
2100 | { | |
39e16e51 | 2101 | int code[4], i; |
8313c4e7 | 2102 | Lisp_Object val; |
4d276982 | 2103 | |
37309c9d | 2104 | SPLIT_CHAR (idxval, code[0], code[1], code[2]); |
e19c1eb4 KH |
2105 | if (code[1] < 32) code[1] = -1; |
2106 | else if (code[2] < 32) code[2] = -1; | |
2107 | ||
39e16e51 KH |
2108 | /* See the comment of the corresponding part in Faref. */ |
2109 | code[0] += 128; | |
2110 | code[3] = -1; /* anchor */ | |
2111 | for (i = 0; code[i + 1] >= 0; i++) | |
8313c4e7 | 2112 | { |
39e16e51 KH |
2113 | val = XCHAR_TABLE (array)->contents[code[i]]; |
2114 | if (SUB_CHAR_TABLE_P (val)) | |
8313c4e7 KH |
2115 | array = val; |
2116 | else | |
3c8fccc3 RS |
2117 | { |
2118 | Lisp_Object temp; | |
2119 | ||
2120 | /* VAL is a leaf. Create a sub char table with the | |
2121 | default value VAL or XCHAR_TABLE (array)->defalt | |
2122 | and look into it. */ | |
2123 | ||
2124 | temp = make_sub_char_table (NILP (val) | |
2125 | ? XCHAR_TABLE (array)->defalt | |
2126 | : val); | |
2127 | XCHAR_TABLE (array)->contents[code[i]] = temp; | |
2128 | array = temp; | |
2129 | } | |
8313c4e7 | 2130 | } |
39e16e51 | 2131 | XCHAR_TABLE (array)->contents[code[i]] = newelt; |
4d276982 | 2132 | } |
4d276982 | 2133 | } |
25638b07 RS |
2134 | else if (STRING_MULTIBYTE (array)) |
2135 | { | |
c6464167 | 2136 | int idxval_byte, prev_bytes, new_bytes, nbytes; |
3c9de1af | 2137 | unsigned char workbuf[MAX_MULTIBYTE_LENGTH], *p0 = workbuf, *p1; |
25638b07 | 2138 | |
d5db4077 | 2139 | if (idxval < 0 || idxval >= SCHARS (array)) |
25638b07 | 2140 | args_out_of_range (array, idx); |
b7826503 | 2141 | CHECK_NUMBER (newelt); |
25638b07 | 2142 | |
c6464167 MB |
2143 | nbytes = SBYTES (array); |
2144 | ||
25638b07 | 2145 | idxval_byte = string_char_to_byte (array, idxval); |
29f44a37 | 2146 | p1 = SDATA (array) + idxval_byte; |
3c9de1af KH |
2147 | PARSE_MULTIBYTE_SEQ (p1, nbytes - idxval_byte, prev_bytes); |
2148 | new_bytes = CHAR_STRING (XINT (newelt), p0); | |
2149 | if (prev_bytes != new_bytes) | |
2150 | { | |
2151 | /* We must relocate the string data. */ | |
d5db4077 | 2152 | int nchars = SCHARS (array); |
3c9de1af | 2153 | unsigned char *str; |
f1a87317 | 2154 | USE_SAFE_ALLOCA; |
3c9de1af | 2155 | |
f1a87317 | 2156 | SAFE_ALLOCA (str, unsigned char *, nbytes); |
d5db4077 | 2157 | bcopy (SDATA (array), str, nbytes); |
3c9de1af KH |
2158 | allocate_string_data (XSTRING (array), nchars, |
2159 | nbytes + new_bytes - prev_bytes); | |
d5db4077 KR |
2160 | bcopy (str, SDATA (array), idxval_byte); |
2161 | p1 = SDATA (array) + idxval_byte; | |
3c9de1af KH |
2162 | bcopy (str + idxval_byte + prev_bytes, p1 + new_bytes, |
2163 | nbytes - (idxval_byte + prev_bytes)); | |
f1a87317 | 2164 | SAFE_FREE (nbytes); |
3c9de1af KH |
2165 | clear_string_char_byte_cache (); |
2166 | } | |
2167 | while (new_bytes--) | |
2168 | *p1++ = *p0++; | |
25638b07 | 2169 | } |
7921925c JB |
2170 | else |
2171 | { | |
d5db4077 | 2172 | if (idxval < 0 || idxval >= SCHARS (array)) |
c24e4efe | 2173 | args_out_of_range (array, idx); |
b7826503 | 2174 | CHECK_NUMBER (newelt); |
3c9de1af KH |
2175 | |
2176 | if (XINT (newelt) < 0 || SINGLE_BYTE_CHAR_P (XINT (newelt))) | |
29f44a37 | 2177 | SSET (array, idxval, XINT (newelt)); |
3c9de1af KH |
2178 | else |
2179 | { | |
2180 | /* We must relocate the string data while converting it to | |
2181 | multibyte. */ | |
2182 | int idxval_byte, prev_bytes, new_bytes; | |
2183 | unsigned char workbuf[MAX_MULTIBYTE_LENGTH], *p0 = workbuf, *p1; | |
d5db4077 | 2184 | unsigned char *origstr = SDATA (array), *str; |
3c9de1af | 2185 | int nchars, nbytes; |
f1a87317 | 2186 | USE_SAFE_ALLOCA; |
3c9de1af | 2187 | |
d5db4077 | 2188 | nchars = SCHARS (array); |
3c9de1af KH |
2189 | nbytes = idxval_byte = count_size_as_multibyte (origstr, idxval); |
2190 | nbytes += count_size_as_multibyte (origstr + idxval, | |
2191 | nchars - idxval); | |
f1a87317 | 2192 | SAFE_ALLOCA (str, unsigned char *, nbytes); |
d5db4077 | 2193 | copy_text (SDATA (array), str, nchars, 0, 1); |
3c9de1af KH |
2194 | PARSE_MULTIBYTE_SEQ (str + idxval_byte, nbytes - idxval_byte, |
2195 | prev_bytes); | |
2196 | new_bytes = CHAR_STRING (XINT (newelt), p0); | |
2197 | allocate_string_data (XSTRING (array), nchars, | |
2198 | nbytes + new_bytes - prev_bytes); | |
d5db4077 KR |
2199 | bcopy (str, SDATA (array), idxval_byte); |
2200 | p1 = SDATA (array) + idxval_byte; | |
3c9de1af KH |
2201 | while (new_bytes--) |
2202 | *p1++ = *p0++; | |
2203 | bcopy (str + idxval_byte + prev_bytes, p1, | |
2204 | nbytes - (idxval_byte + prev_bytes)); | |
f1a87317 | 2205 | SAFE_FREE (nbytes); |
3c9de1af KH |
2206 | clear_string_char_byte_cache (); |
2207 | } | |
7921925c JB |
2208 | } |
2209 | ||
2210 | return newelt; | |
2211 | } | |
7921925c JB |
2212 | \f |
2213 | /* Arithmetic functions */ | |
2214 | ||
2215 | enum comparison { equal, notequal, less, grtr, less_or_equal, grtr_or_equal }; | |
2216 | ||
2217 | Lisp_Object | |
2218 | arithcompare (num1, num2, comparison) | |
2219 | Lisp_Object num1, num2; | |
2220 | enum comparison comparison; | |
2221 | { | |
6bbd7a29 | 2222 | double f1 = 0, f2 = 0; |
7921925c JB |
2223 | int floatp = 0; |
2224 | ||
b7826503 PJ |
2225 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1); |
2226 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2); | |
7921925c | 2227 | |
e9ebc175 | 2228 | if (FLOATP (num1) || FLOATP (num2)) |
7921925c JB |
2229 | { |
2230 | floatp = 1; | |
7539e11f KR |
2231 | f1 = (FLOATP (num1)) ? XFLOAT_DATA (num1) : XINT (num1); |
2232 | f2 = (FLOATP (num2)) ? XFLOAT_DATA (num2) : XINT (num2); | |
7921925c | 2233 | } |
7921925c JB |
2234 | |
2235 | switch (comparison) | |
2236 | { | |
2237 | case equal: | |
2238 | if (floatp ? f1 == f2 : XINT (num1) == XINT (num2)) | |
2239 | return Qt; | |
2240 | return Qnil; | |
2241 | ||
2242 | case notequal: | |
2243 | if (floatp ? f1 != f2 : XINT (num1) != XINT (num2)) | |
2244 | return Qt; | |
2245 | return Qnil; | |
2246 | ||
2247 | case less: | |
2248 | if (floatp ? f1 < f2 : XINT (num1) < XINT (num2)) | |
2249 | return Qt; | |
2250 | return Qnil; | |
2251 | ||
2252 | case less_or_equal: | |
2253 | if (floatp ? f1 <= f2 : XINT (num1) <= XINT (num2)) | |
2254 | return Qt; | |
2255 | return Qnil; | |
2256 | ||
2257 | case grtr: | |
2258 | if (floatp ? f1 > f2 : XINT (num1) > XINT (num2)) | |
2259 | return Qt; | |
2260 | return Qnil; | |
2261 | ||
2262 | case grtr_or_equal: | |
2263 | if (floatp ? f1 >= f2 : XINT (num1) >= XINT (num2)) | |
2264 | return Qt; | |
2265 | return Qnil; | |
25e40a4b JB |
2266 | |
2267 | default: | |
2268 | abort (); | |
7921925c JB |
2269 | } |
2270 | } | |
2271 | ||
2272 | DEFUN ("=", Feqlsign, Seqlsign, 2, 2, 0, | |
8c1a1077 PJ |
2273 | doc: /* Return t if two args, both numbers or markers, are equal. */) |
2274 | (num1, num2) | |
7921925c JB |
2275 | register Lisp_Object num1, num2; |
2276 | { | |
2277 | return arithcompare (num1, num2, equal); | |
2278 | } | |
2279 | ||
2280 | DEFUN ("<", Flss, Slss, 2, 2, 0, | |
8c1a1077 PJ |
2281 | doc: /* Return t if first arg is less than second arg. Both must be numbers or markers. */) |
2282 | (num1, num2) | |
7921925c JB |
2283 | register Lisp_Object num1, num2; |
2284 | { | |
2285 | return arithcompare (num1, num2, less); | |
2286 | } | |
2287 | ||
2288 | DEFUN (">", Fgtr, Sgtr, 2, 2, 0, | |
8c1a1077 PJ |
2289 | doc: /* Return t if first arg is greater than second arg. Both must be numbers or markers. */) |
2290 | (num1, num2) | |
7921925c JB |
2291 | register Lisp_Object num1, num2; |
2292 | { | |
2293 | return arithcompare (num1, num2, grtr); | |
2294 | } | |
2295 | ||
2296 | DEFUN ("<=", Fleq, Sleq, 2, 2, 0, | |
8c1a1077 PJ |
2297 | doc: /* Return t if first arg is less than or equal to second arg. |
2298 | Both must be numbers or markers. */) | |
2299 | (num1, num2) | |
7921925c JB |
2300 | register Lisp_Object num1, num2; |
2301 | { | |
2302 | return arithcompare (num1, num2, less_or_equal); | |
2303 | } | |
2304 | ||
2305 | DEFUN (">=", Fgeq, Sgeq, 2, 2, 0, | |
8c1a1077 PJ |
2306 | doc: /* Return t if first arg is greater than or equal to second arg. |
2307 | Both must be numbers or markers. */) | |
2308 | (num1, num2) | |
7921925c JB |
2309 | register Lisp_Object num1, num2; |
2310 | { | |
2311 | return arithcompare (num1, num2, grtr_or_equal); | |
2312 | } | |
2313 | ||
2314 | DEFUN ("/=", Fneq, Sneq, 2, 2, 0, | |
8c1a1077 PJ |
2315 | doc: /* Return t if first arg is not equal to second arg. Both must be numbers or markers. */) |
2316 | (num1, num2) | |
7921925c JB |
2317 | register Lisp_Object num1, num2; |
2318 | { | |
2319 | return arithcompare (num1, num2, notequal); | |
2320 | } | |
2321 | ||
8c1a1077 PJ |
2322 | DEFUN ("zerop", Fzerop, Szerop, 1, 1, 0, |
2323 | doc: /* Return t if NUMBER is zero. */) | |
2324 | (number) | |
d9c2a0f2 | 2325 | register Lisp_Object number; |
7921925c | 2326 | { |
b7826503 | 2327 | CHECK_NUMBER_OR_FLOAT (number); |
7921925c | 2328 | |
d9c2a0f2 | 2329 | if (FLOATP (number)) |
7921925c | 2330 | { |
7539e11f | 2331 | if (XFLOAT_DATA (number) == 0.0) |
7921925c JB |
2332 | return Qt; |
2333 | return Qnil; | |
2334 | } | |
7921925c | 2335 | |
d9c2a0f2 | 2336 | if (!XINT (number)) |
7921925c JB |
2337 | return Qt; |
2338 | return Qnil; | |
2339 | } | |
2340 | \f | |
34f4f6c6 | 2341 | /* Convert between long values and pairs of Lisp integers. */ |
51cf3e31 JB |
2342 | |
2343 | Lisp_Object | |
2344 | long_to_cons (i) | |
2345 | unsigned long i; | |
2346 | { | |
9bc7166b | 2347 | unsigned long top = i >> 16; |
51cf3e31 JB |
2348 | unsigned int bot = i & 0xFFFF; |
2349 | if (top == 0) | |
2350 | return make_number (bot); | |
b42cfa11 | 2351 | if (top == (unsigned long)-1 >> 16) |
51cf3e31 JB |
2352 | return Fcons (make_number (-1), make_number (bot)); |
2353 | return Fcons (make_number (top), make_number (bot)); | |
2354 | } | |
2355 | ||
2356 | unsigned long | |
2357 | cons_to_long (c) | |
2358 | Lisp_Object c; | |
2359 | { | |
878a80cc | 2360 | Lisp_Object top, bot; |
51cf3e31 JB |
2361 | if (INTEGERP (c)) |
2362 | return XINT (c); | |
7539e11f KR |
2363 | top = XCAR (c); |
2364 | bot = XCDR (c); | |
51cf3e31 | 2365 | if (CONSP (bot)) |
7539e11f | 2366 | bot = XCAR (bot); |
51cf3e31 JB |
2367 | return ((XINT (top) << 16) | XINT (bot)); |
2368 | } | |
2369 | \f | |
f2980264 | 2370 | DEFUN ("number-to-string", Fnumber_to_string, Snumber_to_string, 1, 1, 0, |
bfb96cb7 | 2371 | doc: /* Return the decimal representation of NUMBER as a string. |
8c1a1077 PJ |
2372 | Uses a minus sign if negative. |
2373 | NUMBER may be an integer or a floating point number. */) | |
2374 | (number) | |
d9c2a0f2 | 2375 | Lisp_Object number; |
7921925c | 2376 | { |
6030ce64 | 2377 | char buffer[VALBITS]; |
7921925c | 2378 | |
b7826503 | 2379 | CHECK_NUMBER_OR_FLOAT (number); |
7921925c | 2380 | |
d9c2a0f2 | 2381 | if (FLOATP (number)) |
7921925c JB |
2382 | { |
2383 | char pigbuf[350]; /* see comments in float_to_string */ | |
2384 | ||
7539e11f | 2385 | float_to_string (pigbuf, XFLOAT_DATA (number)); |
7403b5c8 | 2386 | return build_string (pigbuf); |
7921925c | 2387 | } |
7921925c | 2388 | |
e6c82a8d | 2389 | if (sizeof (int) == sizeof (EMACS_INT)) |
d9c2a0f2 | 2390 | sprintf (buffer, "%d", XINT (number)); |
e6c82a8d | 2391 | else if (sizeof (long) == sizeof (EMACS_INT)) |
dd8daec5 | 2392 | sprintf (buffer, "%ld", (long) XINT (number)); |
e6c82a8d RS |
2393 | else |
2394 | abort (); | |
7921925c JB |
2395 | return build_string (buffer); |
2396 | } | |
2397 | ||
3883fbeb RS |
2398 | INLINE static int |
2399 | digit_to_number (character, base) | |
2400 | int character, base; | |
2401 | { | |
2402 | int digit; | |
2403 | ||
2404 | if (character >= '0' && character <= '9') | |
2405 | digit = character - '0'; | |
2406 | else if (character >= 'a' && character <= 'z') | |
2407 | digit = character - 'a' + 10; | |
2408 | else if (character >= 'A' && character <= 'Z') | |
2409 | digit = character - 'A' + 10; | |
2410 | else | |
2411 | return -1; | |
2412 | ||
2413 | if (digit >= base) | |
2414 | return -1; | |
2415 | else | |
2416 | return digit; | |
bfb96cb7 | 2417 | } |
3883fbeb RS |
2418 | |
2419 | DEFUN ("string-to-number", Fstring_to_number, Sstring_to_number, 1, 2, 0, | |
558ee900 | 2420 | doc: /* Parse STRING as a decimal number and return the number. |
8c1a1077 PJ |
2421 | This parses both integers and floating point numbers. |
2422 | It ignores leading spaces and tabs. | |
2423 | ||
2424 | If BASE, interpret STRING as a number in that base. If BASE isn't | |
2425 | present, base 10 is used. BASE must be between 2 and 16 (inclusive). | |
2426 | If the base used is not 10, floating point is not recognized. */) | |
2427 | (string, base) | |
3883fbeb | 2428 | register Lisp_Object string, base; |
7921925c | 2429 | { |
3883fbeb | 2430 | register unsigned char *p; |
342858a5 GM |
2431 | register int b; |
2432 | int sign = 1; | |
2433 | Lisp_Object val; | |
25e40a4b | 2434 | |
b7826503 | 2435 | CHECK_STRING (string); |
7921925c | 2436 | |
3883fbeb RS |
2437 | if (NILP (base)) |
2438 | b = 10; | |
2439 | else | |
2440 | { | |
b7826503 | 2441 | CHECK_NUMBER (base); |
3883fbeb RS |
2442 | b = XINT (base); |
2443 | if (b < 2 || b > 16) | |
2444 | Fsignal (Qargs_out_of_range, Fcons (base, Qnil)); | |
2445 | } | |
2446 | ||
25e40a4b JB |
2447 | /* Skip any whitespace at the front of the number. Some versions of |
2448 | atoi do this anyway, so we might as well make Emacs lisp consistent. */ | |
d5db4077 | 2449 | p = SDATA (string); |
0a3e4d65 | 2450 | while (*p == ' ' || *p == '\t') |
25e40a4b JB |
2451 | p++; |
2452 | ||
3883fbeb RS |
2453 | if (*p == '-') |
2454 | { | |
342858a5 | 2455 | sign = -1; |
3883fbeb RS |
2456 | p++; |
2457 | } | |
2458 | else if (*p == '+') | |
2459 | p++; | |
bfb96cb7 | 2460 | |
8e36ae7f | 2461 | if (isfloat_string (p) && b == 10) |
342858a5 GM |
2462 | val = make_float (sign * atof (p)); |
2463 | else | |
3883fbeb | 2464 | { |
342858a5 GM |
2465 | double v = 0; |
2466 | ||
2467 | while (1) | |
2468 | { | |
2469 | int digit = digit_to_number (*p++, b); | |
2470 | if (digit < 0) | |
2471 | break; | |
2472 | v = v * b + digit; | |
2473 | } | |
2474 | ||
cb938d46 | 2475 | val = make_fixnum_or_float (sign * v); |
3883fbeb | 2476 | } |
342858a5 GM |
2477 | |
2478 | return val; | |
7921925c | 2479 | } |
3883fbeb | 2480 | |
7403b5c8 | 2481 | \f |
7921925c | 2482 | enum arithop |
7a283f36 GM |
2483 | { |
2484 | Aadd, | |
2485 | Asub, | |
2486 | Amult, | |
2487 | Adiv, | |
2488 | Alogand, | |
2489 | Alogior, | |
2490 | Alogxor, | |
2491 | Amax, | |
2492 | Amin | |
2493 | }; | |
2494 | ||
2495 | static Lisp_Object float_arith_driver P_ ((double, int, enum arithop, | |
2496 | int, Lisp_Object *)); | |
ad8d56b9 | 2497 | extern Lisp_Object fmod_float (); |
b06faa91 | 2498 | |
7921925c | 2499 | Lisp_Object |
87fbf902 | 2500 | arith_driver (code, nargs, args) |
7921925c JB |
2501 | enum arithop code; |
2502 | int nargs; | |
2503 | register Lisp_Object *args; | |
2504 | { | |
2505 | register Lisp_Object val; | |
2506 | register int argnum; | |
7a283f36 | 2507 | register EMACS_INT accum = 0; |
5260234d | 2508 | register EMACS_INT next; |
7921925c | 2509 | |
0220c518 | 2510 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2511 | { |
2512 | case Alogior: | |
2513 | case Alogxor: | |
2514 | case Aadd: | |
2515 | case Asub: | |
7a283f36 GM |
2516 | accum = 0; |
2517 | break; | |
7921925c | 2518 | case Amult: |
7a283f36 GM |
2519 | accum = 1; |
2520 | break; | |
7921925c | 2521 | case Alogand: |
7a283f36 GM |
2522 | accum = -1; |
2523 | break; | |
2524 | default: | |
2525 | break; | |
7921925c JB |
2526 | } |
2527 | ||
2528 | for (argnum = 0; argnum < nargs; argnum++) | |
2529 | { | |
7a283f36 GM |
2530 | /* Using args[argnum] as argument to CHECK_NUMBER_... */ |
2531 | val = args[argnum]; | |
b7826503 | 2532 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val); |
7921925c | 2533 | |
7a283f36 GM |
2534 | if (FLOATP (val)) |
2535 | return float_arith_driver ((double) accum, argnum, code, | |
2536 | nargs, args); | |
2537 | args[argnum] = val; | |
7921925c | 2538 | next = XINT (args[argnum]); |
0220c518 | 2539 | switch (SWITCH_ENUM_CAST (code)) |
7921925c | 2540 | { |
7a283f36 GM |
2541 | case Aadd: |
2542 | accum += next; | |
2543 | break; | |
7921925c | 2544 | case Asub: |
e64981da | 2545 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c | 2546 | break; |
7a283f36 GM |
2547 | case Amult: |
2548 | accum *= next; | |
2549 | break; | |
7921925c | 2550 | case Adiv: |
7a283f36 GM |
2551 | if (!argnum) |
2552 | accum = next; | |
87fbf902 RS |
2553 | else |
2554 | { | |
2555 | if (next == 0) | |
2556 | Fsignal (Qarith_error, Qnil); | |
2557 | accum /= next; | |
2558 | } | |
7921925c | 2559 | break; |
7a283f36 GM |
2560 | case Alogand: |
2561 | accum &= next; | |
2562 | break; | |
2563 | case Alogior: | |
2564 | accum |= next; | |
2565 | break; | |
2566 | case Alogxor: | |
2567 | accum ^= next; | |
2568 | break; | |
2569 | case Amax: | |
2570 | if (!argnum || next > accum) | |
2571 | accum = next; | |
2572 | break; | |
2573 | case Amin: | |
2574 | if (!argnum || next < accum) | |
2575 | accum = next; | |
2576 | break; | |
7921925c JB |
2577 | } |
2578 | } | |
2579 | ||
f187f1f7 | 2580 | XSETINT (val, accum); |
7921925c JB |
2581 | return val; |
2582 | } | |
2583 | ||
1a2f2d33 KH |
2584 | #undef isnan |
2585 | #define isnan(x) ((x) != (x)) | |
2586 | ||
7a283f36 | 2587 | static Lisp_Object |
7921925c JB |
2588 | float_arith_driver (accum, argnum, code, nargs, args) |
2589 | double accum; | |
2590 | register int argnum; | |
2591 | enum arithop code; | |
2592 | int nargs; | |
2593 | register Lisp_Object *args; | |
2594 | { | |
2595 | register Lisp_Object val; | |
2596 | double next; | |
7403b5c8 | 2597 | |
7921925c JB |
2598 | for (; argnum < nargs; argnum++) |
2599 | { | |
2600 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ | |
b7826503 | 2601 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val); |
7921925c | 2602 | |
e9ebc175 | 2603 | if (FLOATP (val)) |
7921925c | 2604 | { |
7539e11f | 2605 | next = XFLOAT_DATA (val); |
7921925c JB |
2606 | } |
2607 | else | |
2608 | { | |
2609 | args[argnum] = val; /* runs into a compiler bug. */ | |
2610 | next = XINT (args[argnum]); | |
2611 | } | |
0220c518 | 2612 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2613 | { |
2614 | case Aadd: | |
2615 | accum += next; | |
2616 | break; | |
2617 | case Asub: | |
e64981da | 2618 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c JB |
2619 | break; |
2620 | case Amult: | |
2621 | accum *= next; | |
2622 | break; | |
2623 | case Adiv: | |
2624 | if (!argnum) | |
2625 | accum = next; | |
2626 | else | |
87fbf902 | 2627 | { |
ad8d56b9 | 2628 | if (! IEEE_FLOATING_POINT && next == 0) |
87fbf902 RS |
2629 | Fsignal (Qarith_error, Qnil); |
2630 | accum /= next; | |
2631 | } | |
7921925c JB |
2632 | break; |
2633 | case Alogand: | |
2634 | case Alogior: | |
2635 | case Alogxor: | |
2636 | return wrong_type_argument (Qinteger_or_marker_p, val); | |
2637 | case Amax: | |
1a2f2d33 | 2638 | if (!argnum || isnan (next) || next > accum) |
7921925c JB |
2639 | accum = next; |
2640 | break; | |
2641 | case Amin: | |
1a2f2d33 | 2642 | if (!argnum || isnan (next) || next < accum) |
7921925c JB |
2643 | accum = next; |
2644 | break; | |
2645 | } | |
2646 | } | |
2647 | ||
2648 | return make_float (accum); | |
2649 | } | |
cc94f3b2 | 2650 | |
7921925c JB |
2651 | |
2652 | DEFUN ("+", Fplus, Splus, 0, MANY, 0, | |
8c1a1077 PJ |
2653 | doc: /* Return sum of any number of arguments, which are numbers or markers. |
2654 | usage: (+ &rest NUMBERS-OR-MARKERS) */) | |
2655 | (nargs, args) | |
7921925c JB |
2656 | int nargs; |
2657 | Lisp_Object *args; | |
2658 | { | |
2659 | return arith_driver (Aadd, nargs, args); | |
2660 | } | |
2661 | ||
2662 | DEFUN ("-", Fminus, Sminus, 0, MANY, 0, | |
558ee900 | 2663 | doc: /* Negate number or subtract numbers or markers and return the result. |
8c1a1077 | 2664 | With one arg, negates it. With more than one arg, |
f44fba9e | 2665 | subtracts all but the first from the first. |
8c1a1077 PJ |
2666 | usage: (- &optional NUMBER-OR-MARKER &rest MORE-NUMBERS-OR-MARKERS) */) |
2667 | (nargs, args) | |
7921925c JB |
2668 | int nargs; |
2669 | Lisp_Object *args; | |
2670 | { | |
2671 | return arith_driver (Asub, nargs, args); | |
2672 | } | |
2673 | ||
2674 | DEFUN ("*", Ftimes, Stimes, 0, MANY, 0, | |
be24eadf | 2675 | doc: /* Return product of any number of arguments, which are numbers or markers. |
8c1a1077 PJ |
2676 | usage: (* &rest NUMBERS-OR-MARKERS) */) |
2677 | (nargs, args) | |
7921925c JB |
2678 | int nargs; |
2679 | Lisp_Object *args; | |
2680 | { | |
2681 | return arith_driver (Amult, nargs, args); | |
2682 | } | |
2683 | ||
2684 | DEFUN ("/", Fquo, Squo, 2, MANY, 0, | |
be24eadf | 2685 | doc: /* Return first argument divided by all the remaining arguments. |
f44fba9e | 2686 | The arguments must be numbers or markers. |
8c1a1077 PJ |
2687 | usage: (/ DIVIDEND DIVISOR &rest DIVISORS) */) |
2688 | (nargs, args) | |
7921925c JB |
2689 | int nargs; |
2690 | Lisp_Object *args; | |
2691 | { | |
28712a21 | 2692 | int argnum; |
7ef98053 | 2693 | for (argnum = 2; argnum < nargs; argnum++) |
28712a21 JB |
2694 | if (FLOATP (args[argnum])) |
2695 | return float_arith_driver (0, 0, Adiv, nargs, args); | |
7921925c JB |
2696 | return arith_driver (Adiv, nargs, args); |
2697 | } | |
2698 | ||
2699 | DEFUN ("%", Frem, Srem, 2, 2, 0, | |
be24eadf | 2700 | doc: /* Return remainder of X divided by Y. |
8c1a1077 PJ |
2701 | Both must be integers or markers. */) |
2702 | (x, y) | |
d9c2a0f2 | 2703 | register Lisp_Object x, y; |
7921925c JB |
2704 | { |
2705 | Lisp_Object val; | |
2706 | ||
b7826503 PJ |
2707 | CHECK_NUMBER_COERCE_MARKER (x); |
2708 | CHECK_NUMBER_COERCE_MARKER (y); | |
7921925c | 2709 | |
d9c2a0f2 | 2710 | if (XFASTINT (y) == 0) |
87fbf902 RS |
2711 | Fsignal (Qarith_error, Qnil); |
2712 | ||
d9c2a0f2 | 2713 | XSETINT (val, XINT (x) % XINT (y)); |
7921925c JB |
2714 | return val; |
2715 | } | |
2716 | ||
1d66a5fa KH |
2717 | #ifndef HAVE_FMOD |
2718 | double | |
2719 | fmod (f1, f2) | |
2720 | double f1, f2; | |
2721 | { | |
bc1c9d7e PE |
2722 | double r = f1; |
2723 | ||
fa43b1e8 KH |
2724 | if (f2 < 0.0) |
2725 | f2 = -f2; | |
bc1c9d7e PE |
2726 | |
2727 | /* If the magnitude of the result exceeds that of the divisor, or | |
2728 | the sign of the result does not agree with that of the dividend, | |
2729 | iterate with the reduced value. This does not yield a | |
2730 | particularly accurate result, but at least it will be in the | |
2731 | range promised by fmod. */ | |
2732 | do | |
2733 | r -= f2 * floor (r / f2); | |
2734 | while (f2 <= (r < 0 ? -r : r) || ((r < 0) != (f1 < 0) && ! isnan (r))); | |
2735 | ||
2736 | return r; | |
1d66a5fa KH |
2737 | } |
2738 | #endif /* ! HAVE_FMOD */ | |
2739 | ||
44fa9da5 | 2740 | DEFUN ("mod", Fmod, Smod, 2, 2, 0, |
be24eadf | 2741 | doc: /* Return X modulo Y. |
8c1a1077 PJ |
2742 | The result falls between zero (inclusive) and Y (exclusive). |
2743 | Both X and Y must be numbers or markers. */) | |
2744 | (x, y) | |
d9c2a0f2 | 2745 | register Lisp_Object x, y; |
44fa9da5 PE |
2746 | { |
2747 | Lisp_Object val; | |
5260234d | 2748 | EMACS_INT i1, i2; |
44fa9da5 | 2749 | |
b7826503 PJ |
2750 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (x); |
2751 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (y); | |
44fa9da5 | 2752 | |
d9c2a0f2 | 2753 | if (FLOATP (x) || FLOATP (y)) |
ad8d56b9 PE |
2754 | return fmod_float (x, y); |
2755 | ||
d9c2a0f2 EN |
2756 | i1 = XINT (x); |
2757 | i2 = XINT (y); | |
44fa9da5 PE |
2758 | |
2759 | if (i2 == 0) | |
2760 | Fsignal (Qarith_error, Qnil); | |
7403b5c8 | 2761 | |
44fa9da5 PE |
2762 | i1 %= i2; |
2763 | ||
2764 | /* If the "remainder" comes out with the wrong sign, fix it. */ | |
04f7ec69 | 2765 | if (i2 < 0 ? i1 > 0 : i1 < 0) |
44fa9da5 PE |
2766 | i1 += i2; |
2767 | ||
f187f1f7 | 2768 | XSETINT (val, i1); |
44fa9da5 PE |
2769 | return val; |
2770 | } | |
2771 | ||
7921925c | 2772 | DEFUN ("max", Fmax, Smax, 1, MANY, 0, |
8c1a1077 | 2773 | doc: /* Return largest of all the arguments (which must be numbers or markers). |
f44fba9e | 2774 | The value is always a number; markers are converted to numbers. |
8c1a1077 PJ |
2775 | usage: (max NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
2776 | (nargs, args) | |
7921925c JB |
2777 | int nargs; |
2778 | Lisp_Object *args; | |
2779 | { | |
2780 | return arith_driver (Amax, nargs, args); | |
2781 | } | |
2782 | ||
2783 | DEFUN ("min", Fmin, Smin, 1, MANY, 0, | |
8c1a1077 | 2784 | doc: /* Return smallest of all the arguments (which must be numbers or markers). |
f44fba9e | 2785 | The value is always a number; markers are converted to numbers. |
8c1a1077 PJ |
2786 | usage: (min NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
2787 | (nargs, args) | |
7921925c JB |
2788 | int nargs; |
2789 | Lisp_Object *args; | |
2790 | { | |
2791 | return arith_driver (Amin, nargs, args); | |
2792 | } | |
2793 | ||
2794 | DEFUN ("logand", Flogand, Slogand, 0, MANY, 0, | |
8c1a1077 | 2795 | doc: /* Return bitwise-and of all the arguments. |
f44fba9e | 2796 | Arguments may be integers, or markers converted to integers. |
8c1a1077 PJ |
2797 | usage: (logand &rest INTS-OR-MARKERS) */) |
2798 | (nargs, args) | |
7921925c JB |
2799 | int nargs; |
2800 | Lisp_Object *args; | |
2801 | { | |
2802 | return arith_driver (Alogand, nargs, args); | |
2803 | } | |
2804 | ||
2805 | DEFUN ("logior", Flogior, Slogior, 0, MANY, 0, | |
8c1a1077 | 2806 | doc: /* Return bitwise-or of all the arguments. |
f44fba9e | 2807 | Arguments may be integers, or markers converted to integers. |
8c1a1077 PJ |
2808 | usage: (logior &rest INTS-OR-MARKERS) */) |
2809 | (nargs, args) | |
7921925c JB |
2810 | int nargs; |
2811 | Lisp_Object *args; | |
2812 | { | |
2813 | return arith_driver (Alogior, nargs, args); | |
2814 | } | |
2815 | ||
2816 | DEFUN ("logxor", Flogxor, Slogxor, 0, MANY, 0, | |
8c1a1077 | 2817 | doc: /* Return bitwise-exclusive-or of all the arguments. |
f44fba9e | 2818 | Arguments may be integers, or markers converted to integers. |
8c1a1077 PJ |
2819 | usage: (logxor &rest INTS-OR-MARKERS) */) |
2820 | (nargs, args) | |
7921925c JB |
2821 | int nargs; |
2822 | Lisp_Object *args; | |
2823 | { | |
2824 | return arith_driver (Alogxor, nargs, args); | |
2825 | } | |
2826 | ||
2827 | DEFUN ("ash", Fash, Sash, 2, 2, 0, | |
8c1a1077 PJ |
2828 | doc: /* Return VALUE with its bits shifted left by COUNT. |
2829 | If COUNT is negative, shifting is actually to the right. | |
2830 | In this case, the sign bit is duplicated. */) | |
2831 | (value, count) | |
3b9f7964 | 2832 | register Lisp_Object value, count; |
7921925c JB |
2833 | { |
2834 | register Lisp_Object val; | |
2835 | ||
b7826503 PJ |
2836 | CHECK_NUMBER (value); |
2837 | CHECK_NUMBER (count); | |
7921925c | 2838 | |
81d70626 RS |
2839 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2840 | XSETINT (val, 0); | |
2841 | else if (XINT (count) > 0) | |
3d9652eb | 2842 | XSETINT (val, XINT (value) << XFASTINT (count)); |
81d70626 RS |
2843 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2844 | XSETINT (val, XINT (value) < 0 ? -1 : 0); | |
7921925c | 2845 | else |
3d9652eb | 2846 | XSETINT (val, XINT (value) >> -XINT (count)); |
7921925c JB |
2847 | return val; |
2848 | } | |
2849 | ||
2850 | DEFUN ("lsh", Flsh, Slsh, 2, 2, 0, | |
8c1a1077 PJ |
2851 | doc: /* Return VALUE with its bits shifted left by COUNT. |
2852 | If COUNT is negative, shifting is actually to the right. | |
3a9b1297 | 2853 | In this case, zeros are shifted in on the left. */) |
8c1a1077 | 2854 | (value, count) |
3d9652eb | 2855 | register Lisp_Object value, count; |
7921925c JB |
2856 | { |
2857 | register Lisp_Object val; | |
2858 | ||
b7826503 PJ |
2859 | CHECK_NUMBER (value); |
2860 | CHECK_NUMBER (count); | |
7921925c | 2861 | |
81d70626 RS |
2862 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2863 | XSETINT (val, 0); | |
2864 | else if (XINT (count) > 0) | |
3d9652eb | 2865 | XSETINT (val, (EMACS_UINT) XUINT (value) << XFASTINT (count)); |
81d70626 RS |
2866 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2867 | XSETINT (val, 0); | |
7921925c | 2868 | else |
3d9652eb | 2869 | XSETINT (val, (EMACS_UINT) XUINT (value) >> -XINT (count)); |
7921925c JB |
2870 | return val; |
2871 | } | |
2872 | ||
2873 | DEFUN ("1+", Fadd1, Sadd1, 1, 1, 0, | |
8c1a1077 PJ |
2874 | doc: /* Return NUMBER plus one. NUMBER may be a number or a marker. |
2875 | Markers are converted to integers. */) | |
2876 | (number) | |
d9c2a0f2 | 2877 | register Lisp_Object number; |
7921925c | 2878 | { |
b7826503 | 2879 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number); |
7921925c | 2880 | |
d9c2a0f2 | 2881 | if (FLOATP (number)) |
7539e11f | 2882 | return (make_float (1.0 + XFLOAT_DATA (number))); |
7921925c | 2883 | |
d9c2a0f2 EN |
2884 | XSETINT (number, XINT (number) + 1); |
2885 | return number; | |
7921925c JB |
2886 | } |
2887 | ||
2888 | DEFUN ("1-", Fsub1, Ssub1, 1, 1, 0, | |
8c1a1077 PJ |
2889 | doc: /* Return NUMBER minus one. NUMBER may be a number or a marker. |
2890 | Markers are converted to integers. */) | |
2891 | (number) | |
d9c2a0f2 | 2892 | register Lisp_Object number; |
7921925c | 2893 | { |
b7826503 | 2894 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number); |
7921925c | 2895 | |
d9c2a0f2 | 2896 | if (FLOATP (number)) |
7539e11f | 2897 | return (make_float (-1.0 + XFLOAT_DATA (number))); |
7921925c | 2898 | |
d9c2a0f2 EN |
2899 | XSETINT (number, XINT (number) - 1); |
2900 | return number; | |
7921925c JB |
2901 | } |
2902 | ||
2903 | DEFUN ("lognot", Flognot, Slognot, 1, 1, 0, | |
8c1a1077 PJ |
2904 | doc: /* Return the bitwise complement of NUMBER. NUMBER must be an integer. */) |
2905 | (number) | |
d9c2a0f2 | 2906 | register Lisp_Object number; |
7921925c | 2907 | { |
b7826503 | 2908 | CHECK_NUMBER (number); |
53924017 | 2909 | XSETINT (number, ~XINT (number)); |
d9c2a0f2 | 2910 | return number; |
7921925c | 2911 | } |
d4be0d31 JD |
2912 | |
2913 | DEFUN ("byteorder", Fbyteorder, Sbyteorder, 0, 0, 0, | |
2914 | doc: /* Return the byteorder for the machine. | |
2915 | Returns 66 (ASCII uppercase B) for big endian machines or 108 (ASCII | |
2916 | lowercase l) for small endian machines. */) | |
2917 | () | |
2918 | { | |
2919 | unsigned i = 0x04030201; | |
7a8560d7 | 2920 | int order = *(char *)&i == 1 ? 108 : 66; |
d4be0d31 | 2921 | |
d2f14999 | 2922 | return make_number (order); |
d4be0d31 JD |
2923 | } |
2924 | ||
2925 | ||
7921925c JB |
2926 | \f |
2927 | void | |
2928 | syms_of_data () | |
2929 | { | |
6315e761 RS |
2930 | Lisp_Object error_tail, arith_tail; |
2931 | ||
7921925c JB |
2932 | Qquote = intern ("quote"); |
2933 | Qlambda = intern ("lambda"); | |
2934 | Qsubr = intern ("subr"); | |
2935 | Qerror_conditions = intern ("error-conditions"); | |
2936 | Qerror_message = intern ("error-message"); | |
2937 | Qtop_level = intern ("top-level"); | |
2938 | ||
2939 | Qerror = intern ("error"); | |
2940 | Qquit = intern ("quit"); | |
2941 | Qwrong_type_argument = intern ("wrong-type-argument"); | |
2942 | Qargs_out_of_range = intern ("args-out-of-range"); | |
2943 | Qvoid_function = intern ("void-function"); | |
ffd56f97 | 2944 | Qcyclic_function_indirection = intern ("cyclic-function-indirection"); |
f35d5bad | 2945 | Qcyclic_variable_indirection = intern ("cyclic-variable-indirection"); |
7921925c JB |
2946 | Qvoid_variable = intern ("void-variable"); |
2947 | Qsetting_constant = intern ("setting-constant"); | |
2948 | Qinvalid_read_syntax = intern ("invalid-read-syntax"); | |
2949 | ||
2950 | Qinvalid_function = intern ("invalid-function"); | |
2951 | Qwrong_number_of_arguments = intern ("wrong-number-of-arguments"); | |
2952 | Qno_catch = intern ("no-catch"); | |
2953 | Qend_of_file = intern ("end-of-file"); | |
2954 | Qarith_error = intern ("arith-error"); | |
2955 | Qbeginning_of_buffer = intern ("beginning-of-buffer"); | |
2956 | Qend_of_buffer = intern ("end-of-buffer"); | |
2957 | Qbuffer_read_only = intern ("buffer-read-only"); | |
8f9f49d7 | 2958 | Qtext_read_only = intern ("text-read-only"); |
3b8819d6 | 2959 | Qmark_inactive = intern ("mark-inactive"); |
7921925c JB |
2960 | |
2961 | Qlistp = intern ("listp"); | |
2962 | Qconsp = intern ("consp"); | |
2963 | Qsymbolp = intern ("symbolp"); | |
cda9b832 | 2964 | Qkeywordp = intern ("keywordp"); |
7921925c JB |
2965 | Qintegerp = intern ("integerp"); |
2966 | Qnatnump = intern ("natnump"); | |
8e86942b | 2967 | Qwholenump = intern ("wholenump"); |
7921925c JB |
2968 | Qstringp = intern ("stringp"); |
2969 | Qarrayp = intern ("arrayp"); | |
2970 | Qsequencep = intern ("sequencep"); | |
2971 | Qbufferp = intern ("bufferp"); | |
2972 | Qvectorp = intern ("vectorp"); | |
2973 | Qchar_or_string_p = intern ("char-or-string-p"); | |
2974 | Qmarkerp = intern ("markerp"); | |
07bd8472 | 2975 | Qbuffer_or_string_p = intern ("buffer-or-string-p"); |
7921925c JB |
2976 | Qinteger_or_marker_p = intern ("integer-or-marker-p"); |
2977 | Qboundp = intern ("boundp"); | |
2978 | Qfboundp = intern ("fboundp"); | |
2979 | ||
7921925c JB |
2980 | Qfloatp = intern ("floatp"); |
2981 | Qnumberp = intern ("numberp"); | |
2982 | Qnumber_or_marker_p = intern ("number-or-marker-p"); | |
7921925c | 2983 | |
4d276982 | 2984 | Qchar_table_p = intern ("char-table-p"); |
7f0edce7 | 2985 | Qvector_or_char_table_p = intern ("vector-or-char-table-p"); |
4d276982 | 2986 | |
6f0e897f DL |
2987 | Qsubrp = intern ("subrp"); |
2988 | Qunevalled = intern ("unevalled"); | |
2989 | Qmany = intern ("many"); | |
2990 | ||
7921925c JB |
2991 | Qcdr = intern ("cdr"); |
2992 | ||
f845f2c9 | 2993 | /* Handle automatic advice activation */ |
ab297811 | 2994 | Qad_advice_info = intern ("ad-advice-info"); |
c1307a23 | 2995 | Qad_activate_internal = intern ("ad-activate-internal"); |
f845f2c9 | 2996 | |
6315e761 RS |
2997 | error_tail = Fcons (Qerror, Qnil); |
2998 | ||
7921925c JB |
2999 | /* ERROR is used as a signaler for random errors for which nothing else is right */ |
3000 | ||
3001 | Fput (Qerror, Qerror_conditions, | |
6315e761 | 3002 | error_tail); |
7921925c JB |
3003 | Fput (Qerror, Qerror_message, |
3004 | build_string ("error")); | |
3005 | ||
3006 | Fput (Qquit, Qerror_conditions, | |
3007 | Fcons (Qquit, Qnil)); | |
3008 | Fput (Qquit, Qerror_message, | |
3009 | build_string ("Quit")); | |
3010 | ||
3011 | Fput (Qwrong_type_argument, Qerror_conditions, | |
6315e761 | 3012 | Fcons (Qwrong_type_argument, error_tail)); |
7921925c JB |
3013 | Fput (Qwrong_type_argument, Qerror_message, |
3014 | build_string ("Wrong type argument")); | |
3015 | ||
3016 | Fput (Qargs_out_of_range, Qerror_conditions, | |
6315e761 | 3017 | Fcons (Qargs_out_of_range, error_tail)); |
7921925c JB |
3018 | Fput (Qargs_out_of_range, Qerror_message, |
3019 | build_string ("Args out of range")); | |
3020 | ||
3021 | Fput (Qvoid_function, Qerror_conditions, | |
6315e761 | 3022 | Fcons (Qvoid_function, error_tail)); |
7921925c JB |
3023 | Fput (Qvoid_function, Qerror_message, |
3024 | build_string ("Symbol's function definition is void")); | |
3025 | ||
ffd56f97 | 3026 | Fput (Qcyclic_function_indirection, Qerror_conditions, |
6315e761 | 3027 | Fcons (Qcyclic_function_indirection, error_tail)); |
ffd56f97 JB |
3028 | Fput (Qcyclic_function_indirection, Qerror_message, |
3029 | build_string ("Symbol's chain of function indirections contains a loop")); | |
3030 | ||
f35d5bad GM |
3031 | Fput (Qcyclic_variable_indirection, Qerror_conditions, |
3032 | Fcons (Qcyclic_variable_indirection, error_tail)); | |
3033 | Fput (Qcyclic_variable_indirection, Qerror_message, | |
3034 | build_string ("Symbol's chain of variable indirections contains a loop")); | |
3035 | ||
13d95cc0 GM |
3036 | Qcircular_list = intern ("circular-list"); |
3037 | staticpro (&Qcircular_list); | |
3038 | Fput (Qcircular_list, Qerror_conditions, | |
3039 | Fcons (Qcircular_list, error_tail)); | |
3040 | Fput (Qcircular_list, Qerror_message, | |
3041 | build_string ("List contains a loop")); | |
3042 | ||
7921925c | 3043 | Fput (Qvoid_variable, Qerror_conditions, |
6315e761 | 3044 | Fcons (Qvoid_variable, error_tail)); |
7921925c JB |
3045 | Fput (Qvoid_variable, Qerror_message, |
3046 | build_string ("Symbol's value as variable is void")); | |
3047 | ||
3048 | Fput (Qsetting_constant, Qerror_conditions, | |
6315e761 | 3049 | Fcons (Qsetting_constant, error_tail)); |
7921925c JB |
3050 | Fput (Qsetting_constant, Qerror_message, |
3051 | build_string ("Attempt to set a constant symbol")); | |
3052 | ||
3053 | Fput (Qinvalid_read_syntax, Qerror_conditions, | |
6315e761 | 3054 | Fcons (Qinvalid_read_syntax, error_tail)); |
7921925c JB |
3055 | Fput (Qinvalid_read_syntax, Qerror_message, |
3056 | build_string ("Invalid read syntax")); | |
3057 | ||
3058 | Fput (Qinvalid_function, Qerror_conditions, | |
6315e761 | 3059 | Fcons (Qinvalid_function, error_tail)); |
7921925c JB |
3060 | Fput (Qinvalid_function, Qerror_message, |
3061 | build_string ("Invalid function")); | |
3062 | ||
3063 | Fput (Qwrong_number_of_arguments, Qerror_conditions, | |
6315e761 | 3064 | Fcons (Qwrong_number_of_arguments, error_tail)); |
7921925c JB |
3065 | Fput (Qwrong_number_of_arguments, Qerror_message, |
3066 | build_string ("Wrong number of arguments")); | |
3067 | ||
3068 | Fput (Qno_catch, Qerror_conditions, | |
6315e761 | 3069 | Fcons (Qno_catch, error_tail)); |
7921925c JB |
3070 | Fput (Qno_catch, Qerror_message, |
3071 | build_string ("No catch for tag")); | |
3072 | ||
3073 | Fput (Qend_of_file, Qerror_conditions, | |
6315e761 | 3074 | Fcons (Qend_of_file, error_tail)); |
7921925c JB |
3075 | Fput (Qend_of_file, Qerror_message, |
3076 | build_string ("End of file during parsing")); | |
3077 | ||
6315e761 | 3078 | arith_tail = Fcons (Qarith_error, error_tail); |
7921925c | 3079 | Fput (Qarith_error, Qerror_conditions, |
6315e761 | 3080 | arith_tail); |
7921925c JB |
3081 | Fput (Qarith_error, Qerror_message, |
3082 | build_string ("Arithmetic error")); | |
3083 | ||
3084 | Fput (Qbeginning_of_buffer, Qerror_conditions, | |
6315e761 | 3085 | Fcons (Qbeginning_of_buffer, error_tail)); |
7921925c JB |
3086 | Fput (Qbeginning_of_buffer, Qerror_message, |
3087 | build_string ("Beginning of buffer")); | |
3088 | ||
3089 | Fput (Qend_of_buffer, Qerror_conditions, | |
6315e761 | 3090 | Fcons (Qend_of_buffer, error_tail)); |
7921925c JB |
3091 | Fput (Qend_of_buffer, Qerror_message, |
3092 | build_string ("End of buffer")); | |
3093 | ||
3094 | Fput (Qbuffer_read_only, Qerror_conditions, | |
6315e761 | 3095 | Fcons (Qbuffer_read_only, error_tail)); |
7921925c JB |
3096 | Fput (Qbuffer_read_only, Qerror_message, |
3097 | build_string ("Buffer is read-only")); | |
3098 | ||
8f9f49d7 GM |
3099 | Fput (Qtext_read_only, Qerror_conditions, |
3100 | Fcons (Qtext_read_only, error_tail)); | |
3101 | Fput (Qtext_read_only, Qerror_message, | |
3102 | build_string ("Text is read-only")); | |
3103 | ||
6315e761 RS |
3104 | Qrange_error = intern ("range-error"); |
3105 | Qdomain_error = intern ("domain-error"); | |
3106 | Qsingularity_error = intern ("singularity-error"); | |
3107 | Qoverflow_error = intern ("overflow-error"); | |
3108 | Qunderflow_error = intern ("underflow-error"); | |
3109 | ||
3110 | Fput (Qdomain_error, Qerror_conditions, | |
3111 | Fcons (Qdomain_error, arith_tail)); | |
3112 | Fput (Qdomain_error, Qerror_message, | |
3113 | build_string ("Arithmetic domain error")); | |
3114 | ||
3115 | Fput (Qrange_error, Qerror_conditions, | |
3116 | Fcons (Qrange_error, arith_tail)); | |
3117 | Fput (Qrange_error, Qerror_message, | |
3118 | build_string ("Arithmetic range error")); | |
3119 | ||
3120 | Fput (Qsingularity_error, Qerror_conditions, | |
3121 | Fcons (Qsingularity_error, Fcons (Qdomain_error, arith_tail))); | |
3122 | Fput (Qsingularity_error, Qerror_message, | |
3123 | build_string ("Arithmetic singularity error")); | |
3124 | ||
3125 | Fput (Qoverflow_error, Qerror_conditions, | |
3126 | Fcons (Qoverflow_error, Fcons (Qdomain_error, arith_tail))); | |
3127 | Fput (Qoverflow_error, Qerror_message, | |
3128 | build_string ("Arithmetic overflow error")); | |
3129 | ||
3130 | Fput (Qunderflow_error, Qerror_conditions, | |
3131 | Fcons (Qunderflow_error, Fcons (Qdomain_error, arith_tail))); | |
3132 | Fput (Qunderflow_error, Qerror_message, | |
3133 | build_string ("Arithmetic underflow error")); | |
3134 | ||
3135 | staticpro (&Qrange_error); | |
3136 | staticpro (&Qdomain_error); | |
3137 | staticpro (&Qsingularity_error); | |
3138 | staticpro (&Qoverflow_error); | |
3139 | staticpro (&Qunderflow_error); | |
6315e761 | 3140 | |
7921925c JB |
3141 | staticpro (&Qnil); |
3142 | staticpro (&Qt); | |
3143 | staticpro (&Qquote); | |
3144 | staticpro (&Qlambda); | |
3145 | staticpro (&Qsubr); | |
3146 | staticpro (&Qunbound); | |
3147 | staticpro (&Qerror_conditions); | |
3148 | staticpro (&Qerror_message); | |
3149 | staticpro (&Qtop_level); | |
3150 | ||
3151 | staticpro (&Qerror); | |
3152 | staticpro (&Qquit); | |
3153 | staticpro (&Qwrong_type_argument); | |
3154 | staticpro (&Qargs_out_of_range); | |
3155 | staticpro (&Qvoid_function); | |
ffd56f97 | 3156 | staticpro (&Qcyclic_function_indirection); |
7921925c JB |
3157 | staticpro (&Qvoid_variable); |
3158 | staticpro (&Qsetting_constant); | |
3159 | staticpro (&Qinvalid_read_syntax); | |
3160 | staticpro (&Qwrong_number_of_arguments); | |
3161 | staticpro (&Qinvalid_function); | |
3162 | staticpro (&Qno_catch); | |
3163 | staticpro (&Qend_of_file); | |
3164 | staticpro (&Qarith_error); | |
3165 | staticpro (&Qbeginning_of_buffer); | |
3166 | staticpro (&Qend_of_buffer); | |
3167 | staticpro (&Qbuffer_read_only); | |
8f9f49d7 | 3168 | staticpro (&Qtext_read_only); |
638b77e6 | 3169 | staticpro (&Qmark_inactive); |
7921925c JB |
3170 | |
3171 | staticpro (&Qlistp); | |
3172 | staticpro (&Qconsp); | |
3173 | staticpro (&Qsymbolp); | |
cda9b832 | 3174 | staticpro (&Qkeywordp); |
7921925c JB |
3175 | staticpro (&Qintegerp); |
3176 | staticpro (&Qnatnump); | |
8e86942b | 3177 | staticpro (&Qwholenump); |
7921925c JB |
3178 | staticpro (&Qstringp); |
3179 | staticpro (&Qarrayp); | |
3180 | staticpro (&Qsequencep); | |
3181 | staticpro (&Qbufferp); | |
3182 | staticpro (&Qvectorp); | |
3183 | staticpro (&Qchar_or_string_p); | |
3184 | staticpro (&Qmarkerp); | |
07bd8472 | 3185 | staticpro (&Qbuffer_or_string_p); |
7921925c | 3186 | staticpro (&Qinteger_or_marker_p); |
7921925c | 3187 | staticpro (&Qfloatp); |
464f8898 RS |
3188 | staticpro (&Qnumberp); |
3189 | staticpro (&Qnumber_or_marker_p); | |
4d276982 | 3190 | staticpro (&Qchar_table_p); |
7f0edce7 | 3191 | staticpro (&Qvector_or_char_table_p); |
6f0e897f DL |
3192 | staticpro (&Qsubrp); |
3193 | staticpro (&Qmany); | |
3194 | staticpro (&Qunevalled); | |
7921925c JB |
3195 | |
3196 | staticpro (&Qboundp); | |
3197 | staticpro (&Qfboundp); | |
3198 | staticpro (&Qcdr); | |
ab297811 | 3199 | staticpro (&Qad_advice_info); |
c1307a23 | 3200 | staticpro (&Qad_activate_internal); |
7921925c | 3201 | |
39bcc759 RS |
3202 | /* Types that type-of returns. */ |
3203 | Qinteger = intern ("integer"); | |
3204 | Qsymbol = intern ("symbol"); | |
3205 | Qstring = intern ("string"); | |
3206 | Qcons = intern ("cons"); | |
3207 | Qmarker = intern ("marker"); | |
3208 | Qoverlay = intern ("overlay"); | |
3209 | Qfloat = intern ("float"); | |
3210 | Qwindow_configuration = intern ("window-configuration"); | |
3211 | Qprocess = intern ("process"); | |
3212 | Qwindow = intern ("window"); | |
3213 | /* Qsubr = intern ("subr"); */ | |
3214 | Qcompiled_function = intern ("compiled-function"); | |
3215 | Qbuffer = intern ("buffer"); | |
3216 | Qframe = intern ("frame"); | |
3217 | Qvector = intern ("vector"); | |
fc67d5be KH |
3218 | Qchar_table = intern ("char-table"); |
3219 | Qbool_vector = intern ("bool-vector"); | |
81dc5de5 | 3220 | Qhash_table = intern ("hash-table"); |
39bcc759 RS |
3221 | |
3222 | staticpro (&Qinteger); | |
3223 | staticpro (&Qsymbol); | |
3224 | staticpro (&Qstring); | |
3225 | staticpro (&Qcons); | |
3226 | staticpro (&Qmarker); | |
3227 | staticpro (&Qoverlay); | |
3228 | staticpro (&Qfloat); | |
3229 | staticpro (&Qwindow_configuration); | |
3230 | staticpro (&Qprocess); | |
3231 | staticpro (&Qwindow); | |
3232 | /* staticpro (&Qsubr); */ | |
3233 | staticpro (&Qcompiled_function); | |
3234 | staticpro (&Qbuffer); | |
3235 | staticpro (&Qframe); | |
3236 | staticpro (&Qvector); | |
fc67d5be KH |
3237 | staticpro (&Qchar_table); |
3238 | staticpro (&Qbool_vector); | |
81dc5de5 | 3239 | staticpro (&Qhash_table); |
39bcc759 | 3240 | |
f35d5bad | 3241 | defsubr (&Sindirect_variable); |
f52a3ca3 | 3242 | defsubr (&Sinteractive_form); |
7921925c JB |
3243 | defsubr (&Seq); |
3244 | defsubr (&Snull); | |
39bcc759 | 3245 | defsubr (&Stype_of); |
7921925c JB |
3246 | defsubr (&Slistp); |
3247 | defsubr (&Snlistp); | |
3248 | defsubr (&Sconsp); | |
3249 | defsubr (&Satom); | |
3250 | defsubr (&Sintegerp); | |
464f8898 | 3251 | defsubr (&Sinteger_or_marker_p); |
7921925c JB |
3252 | defsubr (&Snumberp); |
3253 | defsubr (&Snumber_or_marker_p); | |
464f8898 | 3254 | defsubr (&Sfloatp); |
7921925c JB |
3255 | defsubr (&Snatnump); |
3256 | defsubr (&Ssymbolp); | |
cda9b832 | 3257 | defsubr (&Skeywordp); |
7921925c | 3258 | defsubr (&Sstringp); |
0f56470d | 3259 | defsubr (&Smultibyte_string_p); |
7921925c | 3260 | defsubr (&Svectorp); |
4d276982 | 3261 | defsubr (&Schar_table_p); |
7f0edce7 | 3262 | defsubr (&Svector_or_char_table_p); |
4d276982 | 3263 | defsubr (&Sbool_vector_p); |
7921925c JB |
3264 | defsubr (&Sarrayp); |
3265 | defsubr (&Ssequencep); | |
3266 | defsubr (&Sbufferp); | |
3267 | defsubr (&Smarkerp); | |
7921925c | 3268 | defsubr (&Ssubrp); |
dbc4e1c1 | 3269 | defsubr (&Sbyte_code_function_p); |
7921925c JB |
3270 | defsubr (&Schar_or_string_p); |
3271 | defsubr (&Scar); | |
3272 | defsubr (&Scdr); | |
3273 | defsubr (&Scar_safe); | |
3274 | defsubr (&Scdr_safe); | |
3275 | defsubr (&Ssetcar); | |
3276 | defsubr (&Ssetcdr); | |
3277 | defsubr (&Ssymbol_function); | |
ffd56f97 | 3278 | defsubr (&Sindirect_function); |
7921925c JB |
3279 | defsubr (&Ssymbol_plist); |
3280 | defsubr (&Ssymbol_name); | |
3281 | defsubr (&Smakunbound); | |
3282 | defsubr (&Sfmakunbound); | |
3283 | defsubr (&Sboundp); | |
3284 | defsubr (&Sfboundp); | |
3285 | defsubr (&Sfset); | |
80df38a2 | 3286 | defsubr (&Sdefalias); |
7921925c JB |
3287 | defsubr (&Ssetplist); |
3288 | defsubr (&Ssymbol_value); | |
3289 | defsubr (&Sset); | |
3290 | defsubr (&Sdefault_boundp); | |
3291 | defsubr (&Sdefault_value); | |
3292 | defsubr (&Sset_default); | |
3293 | defsubr (&Ssetq_default); | |
3294 | defsubr (&Smake_variable_buffer_local); | |
3295 | defsubr (&Smake_local_variable); | |
3296 | defsubr (&Skill_local_variable); | |
b0c2d1c6 | 3297 | defsubr (&Smake_variable_frame_local); |
62476adc | 3298 | defsubr (&Slocal_variable_p); |
f4f04cee | 3299 | defsubr (&Slocal_variable_if_set_p); |
0a2546d4 | 3300 | defsubr (&Svariable_binding_locus); |
7921925c JB |
3301 | defsubr (&Saref); |
3302 | defsubr (&Saset); | |
f2980264 | 3303 | defsubr (&Snumber_to_string); |
25e40a4b | 3304 | defsubr (&Sstring_to_number); |
7921925c JB |
3305 | defsubr (&Seqlsign); |
3306 | defsubr (&Slss); | |
3307 | defsubr (&Sgtr); | |
3308 | defsubr (&Sleq); | |
3309 | defsubr (&Sgeq); | |
3310 | defsubr (&Sneq); | |
3311 | defsubr (&Szerop); | |
3312 | defsubr (&Splus); | |
3313 | defsubr (&Sminus); | |
3314 | defsubr (&Stimes); | |
3315 | defsubr (&Squo); | |
3316 | defsubr (&Srem); | |
44fa9da5 | 3317 | defsubr (&Smod); |
7921925c JB |
3318 | defsubr (&Smax); |
3319 | defsubr (&Smin); | |
3320 | defsubr (&Slogand); | |
3321 | defsubr (&Slogior); | |
3322 | defsubr (&Slogxor); | |
3323 | defsubr (&Slsh); | |
3324 | defsubr (&Sash); | |
3325 | defsubr (&Sadd1); | |
3326 | defsubr (&Ssub1); | |
3327 | defsubr (&Slognot); | |
d4be0d31 | 3328 | defsubr (&Sbyteorder); |
6f0e897f | 3329 | defsubr (&Ssubr_arity); |
0fddae66 | 3330 | defsubr (&Ssubr_name); |
8e86942b | 3331 | |
c80bd143 | 3332 | XSYMBOL (Qwholenump)->function = XSYMBOL (Qnatnump)->function; |
e6190b11 | 3333 | |
9d113d9d AS |
3334 | DEFVAR_LISP ("most-positive-fixnum", &Vmost_positive_fixnum, |
3335 | doc: /* The largest value that is representable in a Lisp integer. */); | |
3336 | Vmost_positive_fixnum = make_number (MOST_POSITIVE_FIXNUM); | |
bfb96cb7 | 3337 | |
9d113d9d AS |
3338 | DEFVAR_LISP ("most-negative-fixnum", &Vmost_negative_fixnum, |
3339 | doc: /* The smallest value that is representable in a Lisp integer. */); | |
3340 | Vmost_negative_fixnum = make_number (MOST_NEGATIVE_FIXNUM); | |
7921925c JB |
3341 | } |
3342 | ||
a33ef3ab | 3343 | SIGTYPE |
7921925c JB |
3344 | arith_error (signo) |
3345 | int signo; | |
3346 | { | |
fe42a920 | 3347 | #if defined(USG) && !defined(POSIX_SIGNALS) |
7921925c JB |
3348 | /* USG systems forget handlers when they are used; |
3349 | must reestablish each time */ | |
3350 | signal (signo, arith_error); | |
3351 | #endif /* USG */ | |
3352 | #ifdef VMS | |
3353 | /* VMS systems are like USG. */ | |
3354 | signal (signo, arith_error); | |
3355 | #endif /* VMS */ | |
3356 | #ifdef BSD4_1 | |
3357 | sigrelse (SIGFPE); | |
3358 | #else /* not BSD4_1 */ | |
e065a56e | 3359 | sigsetmask (SIGEMPTYMASK); |
7921925c JB |
3360 | #endif /* not BSD4_1 */ |
3361 | ||
3362 | Fsignal (Qarith_error, Qnil); | |
3363 | } | |
3364 | ||
dfcf069d | 3365 | void |
7921925c JB |
3366 | init_data () |
3367 | { | |
3368 | /* Don't do this if just dumping out. | |
3369 | We don't want to call `signal' in this case | |
3370 | so that we don't have trouble with dumping | |
3371 | signal-delivering routines in an inconsistent state. */ | |
3372 | #ifndef CANNOT_DUMP | |
3373 | if (!initialized) | |
3374 | return; | |
3375 | #endif /* CANNOT_DUMP */ | |
3376 | signal (SIGFPE, arith_error); | |
7403b5c8 | 3377 | |
7921925c JB |
3378 | #ifdef uts |
3379 | signal (SIGEMT, arith_error); | |
3380 | #endif /* uts */ | |
3381 | } | |
ab5796a9 MB |
3382 | |
3383 | /* arch-tag: 25879798-b84d-479a-9c89-7d148e2109f7 | |
3384 | (do not change this comment) */ |