Commit | Line | Data |
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7921925c | 1 | /* Primitive operations on Lisp data types for GNU Emacs Lisp interpreter. |
0b5538bd TTN |
2 | Copyright (C) 1985, 1986, 1988, 1993, 1994, 1995, 1997, 1998, 1999, 2000, |
3 | 2001, 2002, 2003, 2004, 2005 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 | |
4fc5845f LK |
19 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
20 | Boston, MA 02110-1301, 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 | { |
8a658a52 | 722 | CHECK_SYMBOL (symbol); |
894f6538 RS |
723 | if (CONSP (XSYMBOL (symbol)->function) |
724 | && EQ (XCAR (XSYMBOL (symbol)->function), Qautoload)) | |
725 | LOADHIST_ATTACH (Fcons (Qt, symbol)); | |
32f532b7 | 726 | definition = Ffset (symbol, definition); |
62a29071 | 727 | LOADHIST_ATTACH (Fcons (Qdefun, symbol)); |
d2fde41d SM |
728 | if (!NILP (docstring)) |
729 | Fput (symbol, Qfunction_documentation, docstring); | |
73e0d965 | 730 | return definition; |
fc08c367 RS |
731 | } |
732 | ||
7921925c | 733 | DEFUN ("setplist", Fsetplist, Ssetplist, 2, 2, 0, |
29802b85 | 734 | doc: /* Set SYMBOL's property list to NEWPLIST, and return NEWPLIST. */) |
8c1a1077 | 735 | (symbol, newplist) |
d9c2a0f2 | 736 | register Lisp_Object symbol, newplist; |
7921925c | 737 | { |
b7826503 | 738 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 739 | XSYMBOL (symbol)->plist = newplist; |
7921925c JB |
740 | return newplist; |
741 | } | |
ffd56f97 | 742 | |
6f0e897f | 743 | DEFUN ("subr-arity", Fsubr_arity, Ssubr_arity, 1, 1, 0, |
8c1a1077 PJ |
744 | doc: /* Return minimum and maximum number of args allowed for SUBR. |
745 | SUBR must be a built-in function. | |
746 | The returned value is a pair (MIN . MAX). MIN is the minimum number | |
747 | of args. MAX is the maximum number or the symbol `many', for a | |
748 | function with `&rest' args, or `unevalled' for a special form. */) | |
749 | (subr) | |
6f0e897f DL |
750 | Lisp_Object subr; |
751 | { | |
752 | short minargs, maxargs; | |
753 | if (!SUBRP (subr)) | |
754 | wrong_type_argument (Qsubrp, subr); | |
755 | minargs = XSUBR (subr)->min_args; | |
756 | maxargs = XSUBR (subr)->max_args; | |
757 | if (maxargs == MANY) | |
758 | return Fcons (make_number (minargs), Qmany); | |
759 | else if (maxargs == UNEVALLED) | |
760 | return Fcons (make_number (minargs), Qunevalled); | |
761 | else | |
762 | return Fcons (make_number (minargs), make_number (maxargs)); | |
763 | } | |
764 | ||
0fddae66 SM |
765 | DEFUN ("subr-name", Fsubr_name, Ssubr_name, 1, 1, 0, |
766 | doc: /* Return name of subroutine SUBR. | |
767 | SUBR must be a built-in function. */) | |
768 | (subr) | |
769 | Lisp_Object subr; | |
770 | { | |
771 | const char *name; | |
772 | if (!SUBRP (subr)) | |
773 | wrong_type_argument (Qsubrp, subr); | |
774 | name = XSUBR (subr)->symbol_name; | |
775 | return make_string (name, strlen (name)); | |
776 | } | |
777 | ||
f52a3ca3 SM |
778 | DEFUN ("interactive-form", Finteractive_form, Sinteractive_form, 1, 1, 0, |
779 | doc: /* Return the interactive form of CMD or nil if none. | |
df133612 LT |
780 | If CMD is not a command, the return value is nil. |
781 | Value, if non-nil, is a list \(interactive SPEC). */) | |
f52a3ca3 SM |
782 | (cmd) |
783 | Lisp_Object cmd; | |
cc515226 | 784 | { |
f52a3ca3 SM |
785 | Lisp_Object fun = indirect_function (cmd); |
786 | ||
787 | if (SUBRP (fun)) | |
788 | { | |
789 | if (XSUBR (fun)->prompt) | |
790 | return list2 (Qinteractive, build_string (XSUBR (fun)->prompt)); | |
791 | } | |
792 | else if (COMPILEDP (fun)) | |
793 | { | |
794 | if ((ASIZE (fun) & PSEUDOVECTOR_SIZE_MASK) > COMPILED_INTERACTIVE) | |
795 | return list2 (Qinteractive, AREF (fun, COMPILED_INTERACTIVE)); | |
796 | } | |
797 | else if (CONSP (fun)) | |
798 | { | |
799 | Lisp_Object funcar = XCAR (fun); | |
800 | if (EQ (funcar, Qlambda)) | |
801 | return Fassq (Qinteractive, Fcdr (XCDR (fun))); | |
802 | else if (EQ (funcar, Qautoload)) | |
803 | { | |
804 | struct gcpro gcpro1; | |
805 | GCPRO1 (cmd); | |
806 | do_autoload (fun, cmd); | |
807 | UNGCPRO; | |
808 | return Finteractive_form (cmd); | |
809 | } | |
810 | } | |
cc515226 GM |
811 | return Qnil; |
812 | } | |
813 | ||
7921925c | 814 | \f |
f35d5bad GM |
815 | /*********************************************************************** |
816 | Getting and Setting Values of Symbols | |
817 | ***********************************************************************/ | |
818 | ||
819 | /* Return the symbol holding SYMBOL's value. Signal | |
820 | `cyclic-variable-indirection' if SYMBOL's chain of variable | |
821 | indirections contains a loop. */ | |
822 | ||
823 | Lisp_Object | |
824 | indirect_variable (symbol) | |
825 | Lisp_Object symbol; | |
826 | { | |
827 | Lisp_Object tortoise, hare; | |
828 | ||
829 | hare = tortoise = symbol; | |
830 | ||
831 | while (XSYMBOL (hare)->indirect_variable) | |
832 | { | |
833 | hare = XSYMBOL (hare)->value; | |
834 | if (!XSYMBOL (hare)->indirect_variable) | |
835 | break; | |
bfb96cb7 | 836 | |
f35d5bad GM |
837 | hare = XSYMBOL (hare)->value; |
838 | tortoise = XSYMBOL (tortoise)->value; | |
839 | ||
840 | if (EQ (hare, tortoise)) | |
841 | Fsignal (Qcyclic_variable_indirection, Fcons (symbol, Qnil)); | |
842 | } | |
843 | ||
844 | return hare; | |
845 | } | |
846 | ||
847 | ||
848 | DEFUN ("indirect-variable", Findirect_variable, Sindirect_variable, 1, 1, 0, | |
8c1a1077 PJ |
849 | doc: /* Return the variable at the end of OBJECT's variable chain. |
850 | If OBJECT is a symbol, follow all variable indirections and return the final | |
851 | variable. If OBJECT is not a symbol, just return it. | |
852 | Signal a cyclic-variable-indirection error if there is a loop in the | |
853 | variable chain of symbols. */) | |
854 | (object) | |
f35d5bad GM |
855 | Lisp_Object object; |
856 | { | |
857 | if (SYMBOLP (object)) | |
858 | object = indirect_variable (object); | |
859 | return object; | |
860 | } | |
861 | ||
7921925c JB |
862 | |
863 | /* Given the raw contents of a symbol value cell, | |
864 | return the Lisp value of the symbol. | |
865 | This does not handle buffer-local variables; use | |
866 | swap_in_symval_forwarding for that. */ | |
867 | ||
868 | Lisp_Object | |
869 | do_symval_forwarding (valcontents) | |
870 | register Lisp_Object valcontents; | |
871 | { | |
872 | register Lisp_Object val; | |
46b2ac21 KH |
873 | int offset; |
874 | if (MISCP (valcontents)) | |
324a6eef | 875 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
876 | { |
877 | case Lisp_Misc_Intfwd: | |
878 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
879 | return val; | |
7921925c | 880 | |
46b2ac21 KH |
881 | case Lisp_Misc_Boolfwd: |
882 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
7921925c | 883 | |
46b2ac21 KH |
884 | case Lisp_Misc_Objfwd: |
885 | return *XOBJFWD (valcontents)->objvar; | |
7921925c | 886 | |
46b2ac21 KH |
887 | case Lisp_Misc_Buffer_Objfwd: |
888 | offset = XBUFFER_OBJFWD (valcontents)->offset; | |
f6cd0527 | 889 | return PER_BUFFER_VALUE (current_buffer, offset); |
7403b5c8 | 890 | |
e5f8af9e KH |
891 | case Lisp_Misc_Kboard_Objfwd: |
892 | offset = XKBOARD_OBJFWD (valcontents)->offset; | |
893 | return *(Lisp_Object *)(offset + (char *)current_kboard); | |
46b2ac21 | 894 | } |
7921925c JB |
895 | return valcontents; |
896 | } | |
897 | ||
d9c2a0f2 EN |
898 | /* Store NEWVAL into SYMBOL, where VALCONTENTS is found in the value cell |
899 | of SYMBOL. If SYMBOL is buffer-local, VALCONTENTS should be the | |
7921925c | 900 | buffer-independent contents of the value cell: forwarded just one |
7a283f36 GM |
901 | step past the buffer-localness. |
902 | ||
903 | BUF non-zero means set the value in buffer BUF instead of the | |
904 | current buffer. This only plays a role for per-buffer variables. */ | |
7921925c JB |
905 | |
906 | void | |
7a283f36 | 907 | store_symval_forwarding (symbol, valcontents, newval, buf) |
d9c2a0f2 | 908 | Lisp_Object symbol; |
7921925c | 909 | register Lisp_Object valcontents, newval; |
7a283f36 | 910 | struct buffer *buf; |
7921925c | 911 | { |
0220c518 | 912 | switch (SWITCH_ENUM_CAST (XTYPE (valcontents))) |
7921925c | 913 | { |
46b2ac21 | 914 | case Lisp_Misc: |
324a6eef | 915 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
916 | { |
917 | case Lisp_Misc_Intfwd: | |
b7826503 | 918 | CHECK_NUMBER (newval); |
46b2ac21 | 919 | *XINTFWD (valcontents)->intvar = XINT (newval); |
e6c82a8d RS |
920 | if (*XINTFWD (valcontents)->intvar != XINT (newval)) |
921 | error ("Value out of range for variable `%s'", | |
d5db4077 | 922 | SDATA (SYMBOL_NAME (symbol))); |
46b2ac21 KH |
923 | break; |
924 | ||
925 | case Lisp_Misc_Boolfwd: | |
926 | *XBOOLFWD (valcontents)->boolvar = NILP (newval) ? 0 : 1; | |
927 | break; | |
928 | ||
929 | case Lisp_Misc_Objfwd: | |
930 | *XOBJFWD (valcontents)->objvar = newval; | |
7abd90ea RS |
931 | |
932 | /* If this variable is a default for something stored | |
933 | in the buffer itself, such as default-fill-column, | |
934 | find the buffers that don't have local values for it | |
935 | and update them. */ | |
936 | if (XOBJFWD (valcontents)->objvar > (Lisp_Object *) &buffer_defaults | |
937 | && XOBJFWD (valcontents)->objvar < (Lisp_Object *) (&buffer_defaults + 1)) | |
938 | { | |
939 | int offset = ((char *) XOBJFWD (valcontents)->objvar | |
940 | - (char *) &buffer_defaults); | |
941 | int idx = PER_BUFFER_IDX (offset); | |
942 | ||
43e50e40 | 943 | Lisp_Object tail; |
7abd90ea RS |
944 | |
945 | if (idx <= 0) | |
946 | break; | |
947 | ||
948 | for (tail = Vbuffer_alist; CONSP (tail); tail = XCDR (tail)) | |
949 | { | |
950 | Lisp_Object buf; | |
951 | struct buffer *b; | |
952 | ||
953 | buf = Fcdr (XCAR (tail)); | |
954 | if (!BUFFERP (buf)) continue; | |
955 | b = XBUFFER (buf); | |
956 | ||
957 | if (! PER_BUFFER_VALUE_P (b, idx)) | |
958 | PER_BUFFER_VALUE (b, offset) = newval; | |
959 | } | |
960 | } | |
46b2ac21 KH |
961 | break; |
962 | ||
963 | case Lisp_Misc_Buffer_Objfwd: | |
964 | { | |
965 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
966 | Lisp_Object type; | |
967 | ||
d9b36d19 | 968 | type = PER_BUFFER_TYPE (offset); |
46b2ac21 KH |
969 | if (! NILP (type) && ! NILP (newval) |
970 | && XTYPE (newval) != XINT (type)) | |
971 | buffer_slot_type_mismatch (offset); | |
972 | ||
7a283f36 GM |
973 | if (buf == NULL) |
974 | buf = current_buffer; | |
975 | PER_BUFFER_VALUE (buf, offset) = newval; | |
46b2ac21 | 976 | } |
7403b5c8 KH |
977 | break; |
978 | ||
e5f8af9e | 979 | case Lisp_Misc_Kboard_Objfwd: |
7a283f36 GM |
980 | { |
981 | char *base = (char *) current_kboard; | |
982 | char *p = base + XKBOARD_OBJFWD (valcontents)->offset; | |
983 | *(Lisp_Object *) p = newval; | |
984 | } | |
7403b5c8 KH |
985 | break; |
986 | ||
46b2ac21 KH |
987 | default: |
988 | goto def; | |
989 | } | |
7921925c JB |
990 | break; |
991 | ||
7921925c | 992 | default: |
46b2ac21 | 993 | def: |
f35d5bad | 994 | valcontents = SYMBOL_VALUE (symbol); |
e9ebc175 KH |
995 | if (BUFFER_LOCAL_VALUEP (valcontents) |
996 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
b0c2d1c6 | 997 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue = newval; |
7921925c | 998 | else |
f35d5bad | 999 | SET_SYMBOL_VALUE (symbol, newval); |
7921925c JB |
1000 | } |
1001 | } | |
1002 | ||
b0d53add GM |
1003 | /* Set up SYMBOL to refer to its global binding. |
1004 | This makes it safe to alter the status of other bindings. */ | |
1005 | ||
1006 | void | |
1007 | swap_in_global_binding (symbol) | |
1008 | Lisp_Object symbol; | |
1009 | { | |
1010 | Lisp_Object valcontents, cdr; | |
bfb96cb7 | 1011 | |
f35d5bad | 1012 | valcontents = SYMBOL_VALUE (symbol); |
b0d53add GM |
1013 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1014 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
1015 | abort (); | |
1016 | cdr = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
1017 | ||
1018 | /* Unload the previously loaded binding. */ | |
1019 | Fsetcdr (XCAR (cdr), | |
1020 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); | |
bfb96cb7 | 1021 | |
b0d53add | 1022 | /* Select the global binding in the symbol. */ |
f3fbd155 | 1023 | XSETCAR (cdr, cdr); |
7a283f36 | 1024 | store_symval_forwarding (symbol, valcontents, XCDR (cdr), NULL); |
b0d53add GM |
1025 | |
1026 | /* Indicate that the global binding is set up now. */ | |
1027 | XBUFFER_LOCAL_VALUE (valcontents)->frame = Qnil; | |
1028 | XBUFFER_LOCAL_VALUE (valcontents)->buffer = Qnil; | |
1029 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; | |
1030 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
1031 | } | |
1032 | ||
2829d05f | 1033 | /* Set up the buffer-local symbol SYMBOL for validity in the current buffer. |
42e975f0 RS |
1034 | VALCONTENTS is the contents of its value cell, |
1035 | which points to a struct Lisp_Buffer_Local_Value. | |
1036 | ||
1037 | Return the value forwarded one step past the buffer-local stage. | |
1038 | This could be another forwarding pointer. */ | |
7921925c JB |
1039 | |
1040 | static Lisp_Object | |
d9c2a0f2 EN |
1041 | swap_in_symval_forwarding (symbol, valcontents) |
1042 | Lisp_Object symbol, valcontents; | |
7921925c | 1043 | { |
7921925c | 1044 | register Lisp_Object tem1; |
bfb96cb7 | 1045 | |
b0c2d1c6 | 1046 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
7921925c | 1047 | |
42e975f0 RS |
1048 | if (NILP (tem1) |
1049 | || current_buffer != XBUFFER (tem1) | |
1050 | || (XBUFFER_LOCAL_VALUE (valcontents)->check_frame | |
1051 | && ! EQ (selected_frame, XBUFFER_LOCAL_VALUE (valcontents)->frame))) | |
7921925c | 1052 | { |
f35d5bad GM |
1053 | if (XSYMBOL (symbol)->indirect_variable) |
1054 | symbol = indirect_variable (symbol); | |
bfb96cb7 | 1055 | |
42e975f0 | 1056 | /* Unload the previously loaded binding. */ |
7539e11f | 1057 | tem1 = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
8d4afcac | 1058 | Fsetcdr (tem1, |
b0c2d1c6 | 1059 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); |
42e975f0 | 1060 | /* Choose the new binding. */ |
d9c2a0f2 | 1061 | tem1 = assq_no_quit (symbol, current_buffer->local_var_alist); |
b0c2d1c6 RS |
1062 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; |
1063 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
a33ef3ab | 1064 | if (NILP (tem1)) |
b0c2d1c6 RS |
1065 | { |
1066 | if (XBUFFER_LOCAL_VALUE (valcontents)->check_frame) | |
1cc04aed | 1067 | tem1 = assq_no_quit (symbol, XFRAME (selected_frame)->param_alist); |
b0c2d1c6 RS |
1068 | if (! NILP (tem1)) |
1069 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 1; | |
1070 | else | |
1071 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
1072 | } | |
1073 | else | |
1074 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 1; | |
1075 | ||
42e975f0 | 1076 | /* Load the new binding. */ |
f3fbd155 | 1077 | XSETCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr, tem1); |
b0c2d1c6 | 1078 | XSETBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer, current_buffer); |
1cc04aed | 1079 | XBUFFER_LOCAL_VALUE (valcontents)->frame = selected_frame; |
b0c2d1c6 RS |
1080 | store_symval_forwarding (symbol, |
1081 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue, | |
7a283f36 | 1082 | Fcdr (tem1), NULL); |
7921925c | 1083 | } |
b0c2d1c6 | 1084 | return XBUFFER_LOCAL_VALUE (valcontents)->realvalue; |
7921925c JB |
1085 | } |
1086 | \f | |
14e76af9 JB |
1087 | /* Find the value of a symbol, returning Qunbound if it's not bound. |
1088 | This is helpful for code which just wants to get a variable's value | |
8e6208c5 | 1089 | if it has one, without signaling an error. |
14e76af9 JB |
1090 | Note that it must not be possible to quit |
1091 | within this function. Great care is required for this. */ | |
7921925c | 1092 | |
14e76af9 | 1093 | Lisp_Object |
d9c2a0f2 EN |
1094 | find_symbol_value (symbol) |
1095 | Lisp_Object symbol; | |
7921925c | 1096 | { |
dd8daec5 | 1097 | register Lisp_Object valcontents; |
7921925c | 1098 | register Lisp_Object val; |
bfb96cb7 | 1099 | |
b7826503 | 1100 | CHECK_SYMBOL (symbol); |
f35d5bad | 1101 | valcontents = SYMBOL_VALUE (symbol); |
7921925c | 1102 | |
aabf6bec KH |
1103 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1104 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
2a359158 | 1105 | valcontents = swap_in_symval_forwarding (symbol, valcontents); |
7921925c | 1106 | |
536b772a KH |
1107 | if (MISCP (valcontents)) |
1108 | { | |
324a6eef | 1109 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
1110 | { |
1111 | case Lisp_Misc_Intfwd: | |
1112 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
1113 | return val; | |
7921925c | 1114 | |
46b2ac21 KH |
1115 | case Lisp_Misc_Boolfwd: |
1116 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
7921925c | 1117 | |
46b2ac21 KH |
1118 | case Lisp_Misc_Objfwd: |
1119 | return *XOBJFWD (valcontents)->objvar; | |
7921925c | 1120 | |
46b2ac21 | 1121 | case Lisp_Misc_Buffer_Objfwd: |
f6cd0527 | 1122 | return PER_BUFFER_VALUE (current_buffer, |
999b32fd | 1123 | XBUFFER_OBJFWD (valcontents)->offset); |
7403b5c8 | 1124 | |
e5f8af9e KH |
1125 | case Lisp_Misc_Kboard_Objfwd: |
1126 | return *(Lisp_Object *)(XKBOARD_OBJFWD (valcontents)->offset | |
1127 | + (char *)current_kboard); | |
46b2ac21 | 1128 | } |
7921925c JB |
1129 | } |
1130 | ||
1131 | return valcontents; | |
1132 | } | |
1133 | ||
14e76af9 | 1134 | DEFUN ("symbol-value", Fsymbol_value, Ssymbol_value, 1, 1, 0, |
8c1a1077 PJ |
1135 | doc: /* Return SYMBOL's value. Error if that is void. */) |
1136 | (symbol) | |
d9c2a0f2 | 1137 | Lisp_Object symbol; |
14e76af9 | 1138 | { |
0671d7c0 | 1139 | Lisp_Object val; |
14e76af9 | 1140 | |
d9c2a0f2 | 1141 | val = find_symbol_value (symbol); |
14e76af9 | 1142 | if (EQ (val, Qunbound)) |
d9c2a0f2 | 1143 | return Fsignal (Qvoid_variable, Fcons (symbol, Qnil)); |
14e76af9 JB |
1144 | else |
1145 | return val; | |
1146 | } | |
1147 | ||
7921925c | 1148 | DEFUN ("set", Fset, Sset, 2, 2, 0, |
8c1a1077 PJ |
1149 | doc: /* Set SYMBOL's value to NEWVAL, and return NEWVAL. */) |
1150 | (symbol, newval) | |
d9c2a0f2 | 1151 | register Lisp_Object symbol, newval; |
05ef7169 | 1152 | { |
2829d05f | 1153 | return set_internal (symbol, newval, current_buffer, 0); |
05ef7169 RS |
1154 | } |
1155 | ||
1f35ce36 RS |
1156 | /* Return 1 if SYMBOL currently has a let-binding |
1157 | which was made in the buffer that is now current. */ | |
1158 | ||
1159 | static int | |
1160 | let_shadows_buffer_binding_p (symbol) | |
1161 | Lisp_Object symbol; | |
1162 | { | |
92426155 | 1163 | volatile struct specbinding *p; |
1f35ce36 RS |
1164 | |
1165 | for (p = specpdl_ptr - 1; p >= specpdl; p--) | |
f35d5bad GM |
1166 | if (p->func == NULL |
1167 | && CONSP (p->symbol)) | |
1168 | { | |
1169 | Lisp_Object let_bound_symbol = XCAR (p->symbol); | |
1170 | if ((EQ (symbol, let_bound_symbol) | |
1171 | || (XSYMBOL (let_bound_symbol)->indirect_variable | |
1172 | && EQ (symbol, indirect_variable (let_bound_symbol)))) | |
1173 | && XBUFFER (XCDR (XCDR (p->symbol))) == current_buffer) | |
1174 | break; | |
1175 | } | |
1f35ce36 | 1176 | |
f35d5bad | 1177 | return p >= specpdl; |
1f35ce36 RS |
1178 | } |
1179 | ||
25638b07 | 1180 | /* Store the value NEWVAL into SYMBOL. |
2829d05f RS |
1181 | If buffer-locality is an issue, BUF specifies which buffer to use. |
1182 | (0 stands for the current buffer.) | |
1183 | ||
05ef7169 RS |
1184 | If BINDFLAG is zero, then if this symbol is supposed to become |
1185 | local in every buffer where it is set, then we make it local. | |
1186 | If BINDFLAG is nonzero, we don't do that. */ | |
1187 | ||
1188 | Lisp_Object | |
2829d05f | 1189 | set_internal (symbol, newval, buf, bindflag) |
05ef7169 | 1190 | register Lisp_Object symbol, newval; |
2829d05f | 1191 | struct buffer *buf; |
05ef7169 | 1192 | int bindflag; |
7921925c | 1193 | { |
1bfcade3 | 1194 | int voide = EQ (newval, Qunbound); |
7921925c | 1195 | |
4c47c973 | 1196 | register Lisp_Object valcontents, innercontents, tem1, current_alist_element; |
7921925c | 1197 | |
2829d05f RS |
1198 | if (buf == 0) |
1199 | buf = current_buffer; | |
1200 | ||
1201 | /* If restoring in a dead buffer, do nothing. */ | |
1202 | if (NILP (buf->name)) | |
1203 | return newval; | |
1204 | ||
b7826503 | 1205 | CHECK_SYMBOL (symbol); |
f35d5bad GM |
1206 | if (SYMBOL_CONSTANT_P (symbol) |
1207 | && (NILP (Fkeywordp (symbol)) | |
1208 | || !EQ (newval, SYMBOL_VALUE (symbol)))) | |
d9c2a0f2 | 1209 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); |
4c47c973 | 1210 | |
f35d5bad | 1211 | innercontents = valcontents = SYMBOL_VALUE (symbol); |
bfb96cb7 | 1212 | |
e9ebc175 | 1213 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1214 | { |
999b32fd | 1215 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 | 1216 | int idx = PER_BUFFER_IDX (offset); |
999b32fd GM |
1217 | if (idx > 0 |
1218 | && !bindflag | |
1219 | && !let_shadows_buffer_binding_p (symbol)) | |
f6cd0527 | 1220 | SET_PER_BUFFER_VALUE_P (buf, idx, 1); |
7921925c | 1221 | } |
e9ebc175 KH |
1222 | else if (BUFFER_LOCAL_VALUEP (valcontents) |
1223 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c | 1224 | { |
42e975f0 | 1225 | /* valcontents is a struct Lisp_Buffer_Local_Value. */ |
f35d5bad GM |
1226 | if (XSYMBOL (symbol)->indirect_variable) |
1227 | symbol = indirect_variable (symbol); | |
42e975f0 RS |
1228 | |
1229 | /* What binding is loaded right now? */ | |
b0c2d1c6 | 1230 | current_alist_element |
7539e11f | 1231 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
d8cafeb5 JB |
1232 | |
1233 | /* If the current buffer is not the buffer whose binding is | |
42e975f0 RS |
1234 | loaded, or if there may be frame-local bindings and the frame |
1235 | isn't the right one, or if it's a Lisp_Buffer_Local_Value and | |
1236 | the default binding is loaded, the loaded binding may be the | |
1237 | wrong one. */ | |
8801a864 KR |
1238 | if (!BUFFERP (XBUFFER_LOCAL_VALUE (valcontents)->buffer) |
1239 | || buf != XBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer) | |
42e975f0 RS |
1240 | || (XBUFFER_LOCAL_VALUE (valcontents)->check_frame |
1241 | && !EQ (selected_frame, XBUFFER_LOCAL_VALUE (valcontents)->frame)) | |
1242 | || (BUFFER_LOCAL_VALUEP (valcontents) | |
1243 | && EQ (XCAR (current_alist_element), | |
1244 | current_alist_element))) | |
7921925c | 1245 | { |
42e975f0 RS |
1246 | /* The currently loaded binding is not necessarily valid. |
1247 | We need to unload it, and choose a new binding. */ | |
1248 | ||
1249 | /* Write out `realvalue' to the old loaded binding. */ | |
d8cafeb5 | 1250 | Fsetcdr (current_alist_element, |
b0c2d1c6 | 1251 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); |
7921925c | 1252 | |
42e975f0 | 1253 | /* Find the new binding. */ |
2829d05f | 1254 | tem1 = Fassq (symbol, buf->local_var_alist); |
b0c2d1c6 RS |
1255 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 1; |
1256 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; | |
1257 | ||
a33ef3ab | 1258 | if (NILP (tem1)) |
d8cafeb5 JB |
1259 | { |
1260 | /* This buffer still sees the default value. */ | |
1261 | ||
1262 | /* If the variable is a Lisp_Some_Buffer_Local_Value, | |
05ef7169 | 1263 | or if this is `let' rather than `set', |
d8cafeb5 | 1264 | make CURRENT-ALIST-ELEMENT point to itself, |
1f35ce36 RS |
1265 | indicating that we're seeing the default value. |
1266 | Likewise if the variable has been let-bound | |
1267 | in the current buffer. */ | |
1268 | if (bindflag || SOME_BUFFER_LOCAL_VALUEP (valcontents) | |
1269 | || let_shadows_buffer_binding_p (symbol)) | |
b0c2d1c6 RS |
1270 | { |
1271 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
1272 | ||
1273 | if (XBUFFER_LOCAL_VALUE (valcontents)->check_frame) | |
1cc04aed GM |
1274 | tem1 = Fassq (symbol, |
1275 | XFRAME (selected_frame)->param_alist); | |
d8cafeb5 | 1276 | |
b0c2d1c6 RS |
1277 | if (! NILP (tem1)) |
1278 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 1; | |
1279 | else | |
1280 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
1281 | } | |
05ef7169 | 1282 | /* If it's a Lisp_Buffer_Local_Value, being set not bound, |
1f35ce36 RS |
1283 | and we're not within a let that was made for this buffer, |
1284 | create a new buffer-local binding for the variable. | |
1285 | That means, give this buffer a new assoc for a local value | |
42e975f0 | 1286 | and load that binding. */ |
d8cafeb5 JB |
1287 | else |
1288 | { | |
d2fde41d | 1289 | tem1 = Fcons (symbol, XCDR (current_alist_element)); |
2829d05f RS |
1290 | buf->local_var_alist |
1291 | = Fcons (tem1, buf->local_var_alist); | |
d8cafeb5 JB |
1292 | } |
1293 | } | |
b0c2d1c6 | 1294 | |
42e975f0 | 1295 | /* Record which binding is now loaded. */ |
f3fbd155 KR |
1296 | XSETCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr, |
1297 | tem1); | |
d8cafeb5 | 1298 | |
42e975f0 | 1299 | /* Set `buffer' and `frame' slots for thebinding now loaded. */ |
2829d05f | 1300 | XSETBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer, buf); |
1cc04aed | 1301 | XBUFFER_LOCAL_VALUE (valcontents)->frame = selected_frame; |
7921925c | 1302 | } |
4c47c973 | 1303 | innercontents = XBUFFER_LOCAL_VALUE (valcontents)->realvalue; |
7921925c | 1304 | } |
d8cafeb5 | 1305 | |
7921925c JB |
1306 | /* If storing void (making the symbol void), forward only through |
1307 | buffer-local indicator, not through Lisp_Objfwd, etc. */ | |
1308 | if (voide) | |
7a283f36 | 1309 | store_symval_forwarding (symbol, Qnil, newval, buf); |
7921925c | 1310 | else |
7a283f36 | 1311 | store_symval_forwarding (symbol, innercontents, newval, buf); |
4c47c973 GM |
1312 | |
1313 | /* If we just set a variable whose current binding is frame-local, | |
1314 | store the new value in the frame parameter too. */ | |
1315 | ||
1316 | if (BUFFER_LOCAL_VALUEP (valcontents) | |
1317 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
1318 | { | |
1319 | /* What binding is loaded right now? */ | |
1320 | current_alist_element | |
1321 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); | |
1322 | ||
1323 | /* If the current buffer is not the buffer whose binding is | |
1324 | loaded, or if there may be frame-local bindings and the frame | |
1325 | isn't the right one, or if it's a Lisp_Buffer_Local_Value and | |
1326 | the default binding is loaded, the loaded binding may be the | |
1327 | wrong one. */ | |
1328 | if (XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame) | |
f3fbd155 | 1329 | XSETCDR (current_alist_element, newval); |
4c47c973 | 1330 | } |
d8cafeb5 | 1331 | |
7921925c JB |
1332 | return newval; |
1333 | } | |
1334 | \f | |
1335 | /* Access or set a buffer-local symbol's default value. */ | |
1336 | ||
d9c2a0f2 | 1337 | /* Return the default value of SYMBOL, but don't check for voidness. |
1bfcade3 | 1338 | Return Qunbound if it is void. */ |
7921925c JB |
1339 | |
1340 | Lisp_Object | |
d9c2a0f2 EN |
1341 | default_value (symbol) |
1342 | Lisp_Object symbol; | |
7921925c JB |
1343 | { |
1344 | register Lisp_Object valcontents; | |
1345 | ||
b7826503 | 1346 | CHECK_SYMBOL (symbol); |
f35d5bad | 1347 | valcontents = SYMBOL_VALUE (symbol); |
7921925c JB |
1348 | |
1349 | /* For a built-in buffer-local variable, get the default value | |
1350 | rather than letting do_symval_forwarding get the current value. */ | |
e9ebc175 | 1351 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1352 | { |
999b32fd | 1353 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 GM |
1354 | if (PER_BUFFER_IDX (offset) != 0) |
1355 | return PER_BUFFER_DEFAULT (offset); | |
7921925c JB |
1356 | } |
1357 | ||
1358 | /* Handle user-created local variables. */ | |
e9ebc175 KH |
1359 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1360 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c JB |
1361 | { |
1362 | /* If var is set up for a buffer that lacks a local value for it, | |
1363 | the current value is nominally the default value. | |
42e975f0 | 1364 | But the `realvalue' slot may be more up to date, since |
7921925c JB |
1365 | ordinary setq stores just that slot. So use that. */ |
1366 | Lisp_Object current_alist_element, alist_element_car; | |
1367 | current_alist_element | |
7539e11f KR |
1368 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
1369 | alist_element_car = XCAR (current_alist_element); | |
7921925c | 1370 | if (EQ (alist_element_car, current_alist_element)) |
b0c2d1c6 | 1371 | return do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue); |
7921925c | 1372 | else |
7539e11f | 1373 | return XCDR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
7921925c JB |
1374 | } |
1375 | /* For other variables, get the current value. */ | |
1376 | return do_symval_forwarding (valcontents); | |
1377 | } | |
1378 | ||
1379 | DEFUN ("default-boundp", Fdefault_boundp, Sdefault_boundp, 1, 1, 0, | |
8c1a1077 PJ |
1380 | doc: /* Return t if SYMBOL has a non-void default value. |
1381 | This is the value that is seen in buffers that do not have their own values | |
1382 | for this variable. */) | |
1383 | (symbol) | |
d9c2a0f2 | 1384 | Lisp_Object symbol; |
7921925c JB |
1385 | { |
1386 | register Lisp_Object value; | |
1387 | ||
d9c2a0f2 | 1388 | value = default_value (symbol); |
1bfcade3 | 1389 | return (EQ (value, Qunbound) ? Qnil : Qt); |
7921925c JB |
1390 | } |
1391 | ||
1392 | DEFUN ("default-value", Fdefault_value, Sdefault_value, 1, 1, 0, | |
8c1a1077 PJ |
1393 | doc: /* Return SYMBOL's default value. |
1394 | This is the value that is seen in buffers that do not have their own values | |
1395 | for this variable. The default value is meaningful for variables with | |
1396 | local bindings in certain buffers. */) | |
1397 | (symbol) | |
d9c2a0f2 | 1398 | Lisp_Object symbol; |
7921925c JB |
1399 | { |
1400 | register Lisp_Object value; | |
1401 | ||
d9c2a0f2 | 1402 | value = default_value (symbol); |
1bfcade3 | 1403 | if (EQ (value, Qunbound)) |
d9c2a0f2 | 1404 | return Fsignal (Qvoid_variable, Fcons (symbol, Qnil)); |
7921925c JB |
1405 | return value; |
1406 | } | |
1407 | ||
1408 | DEFUN ("set-default", Fset_default, Sset_default, 2, 2, 0, | |
6e86a75d | 1409 | doc: /* Set SYMBOL's default value to VALUE. SYMBOL and VALUE are evaluated. |
8c1a1077 PJ |
1410 | The default value is seen in buffers that do not have their own values |
1411 | for this variable. */) | |
1412 | (symbol, value) | |
d9c2a0f2 | 1413 | Lisp_Object symbol, value; |
7921925c JB |
1414 | { |
1415 | register Lisp_Object valcontents, current_alist_element, alist_element_buffer; | |
1416 | ||
b7826503 | 1417 | CHECK_SYMBOL (symbol); |
f35d5bad | 1418 | valcontents = SYMBOL_VALUE (symbol); |
7921925c JB |
1419 | |
1420 | /* Handle variables like case-fold-search that have special slots | |
1421 | in the buffer. Make them work apparently like Lisp_Buffer_Local_Value | |
1422 | variables. */ | |
e9ebc175 | 1423 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1424 | { |
999b32fd | 1425 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 | 1426 | int idx = PER_BUFFER_IDX (offset); |
7921925c | 1427 | |
f6cd0527 | 1428 | PER_BUFFER_DEFAULT (offset) = value; |
984ef137 KH |
1429 | |
1430 | /* If this variable is not always local in all buffers, | |
1431 | set it in the buffers that don't nominally have a local value. */ | |
999b32fd | 1432 | if (idx > 0) |
7921925c | 1433 | { |
999b32fd | 1434 | struct buffer *b; |
bfb96cb7 | 1435 | |
7921925c | 1436 | for (b = all_buffers; b; b = b->next) |
f6cd0527 GM |
1437 | if (!PER_BUFFER_VALUE_P (b, idx)) |
1438 | PER_BUFFER_VALUE (b, offset) = value; | |
7921925c JB |
1439 | } |
1440 | return value; | |
1441 | } | |
1442 | ||
e9ebc175 KH |
1443 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1444 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 1445 | return Fset (symbol, value); |
7921925c | 1446 | |
42e975f0 | 1447 | /* Store new value into the DEFAULT-VALUE slot. */ |
f3fbd155 | 1448 | XSETCDR (XBUFFER_LOCAL_VALUE (valcontents)->cdr, value); |
7921925c | 1449 | |
42e975f0 | 1450 | /* If the default binding is now loaded, set the REALVALUE slot too. */ |
8d4afcac | 1451 | current_alist_element |
7539e11f | 1452 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
7921925c JB |
1453 | alist_element_buffer = Fcar (current_alist_element); |
1454 | if (EQ (alist_element_buffer, current_alist_element)) | |
7a283f36 GM |
1455 | store_symval_forwarding (symbol, |
1456 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue, | |
1457 | value, NULL); | |
7921925c JB |
1458 | |
1459 | return value; | |
1460 | } | |
1461 | ||
7a7df7ac | 1462 | DEFUN ("setq-default", Fsetq_default, Ssetq_default, 0, UNEVALLED, 0, |
8c1a1077 PJ |
1463 | doc: /* Set the default value of variable VAR to VALUE. |
1464 | VAR, the variable name, is literal (not evaluated); | |
bfb96cb7 | 1465 | VALUE is an expression: it is evaluated and its value returned. |
8c1a1077 PJ |
1466 | The default value of a variable is seen in buffers |
1467 | that do not have their own values for the variable. | |
1468 | ||
1469 | More generally, you can use multiple variables and values, as in | |
948d2995 JB |
1470 | (setq-default VAR VALUE VAR VALUE...) |
1471 | This sets each VAR's default value to the corresponding VALUE. | |
1472 | The VALUE for the Nth VAR can refer to the new default values | |
1473 | of previous VARs. | |
7a7df7ac | 1474 | usage: (setq-default [VAR VALUE...]) */) |
8c1a1077 | 1475 | (args) |
7921925c JB |
1476 | Lisp_Object args; |
1477 | { | |
1478 | register Lisp_Object args_left; | |
d9c2a0f2 | 1479 | register Lisp_Object val, symbol; |
7921925c JB |
1480 | struct gcpro gcpro1; |
1481 | ||
a33ef3ab | 1482 | if (NILP (args)) |
7921925c JB |
1483 | return Qnil; |
1484 | ||
1485 | args_left = args; | |
1486 | GCPRO1 (args); | |
1487 | ||
1488 | do | |
1489 | { | |
1490 | val = Feval (Fcar (Fcdr (args_left))); | |
d2fde41d | 1491 | symbol = XCAR (args_left); |
d9c2a0f2 | 1492 | Fset_default (symbol, val); |
d2fde41d | 1493 | args_left = Fcdr (XCDR (args_left)); |
7921925c | 1494 | } |
a33ef3ab | 1495 | while (!NILP (args_left)); |
7921925c JB |
1496 | |
1497 | UNGCPRO; | |
1498 | return val; | |
1499 | } | |
1500 | \f | |
a5ca2b75 JB |
1501 | /* Lisp functions for creating and removing buffer-local variables. */ |
1502 | ||
7921925c | 1503 | DEFUN ("make-variable-buffer-local", Fmake_variable_buffer_local, Smake_variable_buffer_local, |
8c1a1077 PJ |
1504 | 1, 1, "vMake Variable Buffer Local: ", |
1505 | doc: /* Make VARIABLE become buffer-local whenever it is set. | |
1506 | At any time, the value for the current buffer is in effect, | |
1507 | unless the variable has never been set in this buffer, | |
1508 | in which case the default value is in effect. | |
1509 | Note that binding the variable with `let', or setting it while | |
1510 | a `let'-style binding made in this buffer is in effect, | |
bfb96cb7 | 1511 | does not make the variable buffer-local. Return VARIABLE. |
8c1a1077 | 1512 | |
a9908653 RS |
1513 | In most cases it is better to use `make-local-variable', |
1514 | which makes a variable local in just one buffer. | |
1515 | ||
8c1a1077 PJ |
1516 | The function `default-value' gets the default value and `set-default' sets it. */) |
1517 | (variable) | |
d9c2a0f2 | 1518 | register Lisp_Object variable; |
7921925c | 1519 | { |
8d4afcac | 1520 | register Lisp_Object tem, valcontents, newval; |
7921925c | 1521 | |
b7826503 | 1522 | CHECK_SYMBOL (variable); |
14970b45 | 1523 | variable = indirect_variable (variable); |
7921925c | 1524 | |
f35d5bad | 1525 | valcontents = SYMBOL_VALUE (variable); |
d9c2a0f2 | 1526 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents)) |
d5db4077 | 1527 | error ("Symbol %s may not be buffer-local", SDATA (SYMBOL_NAME (variable))); |
7921925c | 1528 | |
e9ebc175 | 1529 | if (BUFFER_LOCAL_VALUEP (valcontents) || BUFFER_OBJFWDP (valcontents)) |
d9c2a0f2 | 1530 | return variable; |
e9ebc175 | 1531 | if (SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c | 1532 | { |
f35d5bad | 1533 | XMISCTYPE (SYMBOL_VALUE (variable)) = Lisp_Misc_Buffer_Local_Value; |
d9c2a0f2 | 1534 | return variable; |
7921925c JB |
1535 | } |
1536 | if (EQ (valcontents, Qunbound)) | |
f35d5bad | 1537 | SET_SYMBOL_VALUE (variable, Qnil); |
d9c2a0f2 | 1538 | tem = Fcons (Qnil, Fsymbol_value (variable)); |
f3fbd155 | 1539 | XSETCAR (tem, tem); |
8d4afcac | 1540 | newval = allocate_misc (); |
324a6eef | 1541 | XMISCTYPE (newval) = Lisp_Misc_Buffer_Local_Value; |
f35d5bad | 1542 | XBUFFER_LOCAL_VALUE (newval)->realvalue = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1543 | XBUFFER_LOCAL_VALUE (newval)->buffer = Fcurrent_buffer (); |
1544 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
42e975f0 | 1545 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; |
b0c2d1c6 RS |
1546 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; |
1547 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 0; | |
1548 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
f35d5bad | 1549 | SET_SYMBOL_VALUE (variable, newval); |
d9c2a0f2 | 1550 | return variable; |
7921925c JB |
1551 | } |
1552 | ||
1553 | DEFUN ("make-local-variable", Fmake_local_variable, Smake_local_variable, | |
8c1a1077 PJ |
1554 | 1, 1, "vMake Local Variable: ", |
1555 | doc: /* Make VARIABLE have a separate value in the current buffer. | |
1556 | Other buffers will continue to share a common default value. | |
1557 | \(The buffer-local value of VARIABLE starts out as the same value | |
1558 | VARIABLE previously had. If VARIABLE was void, it remains void.\) | |
a9908653 | 1559 | Return VARIABLE. |
8c1a1077 PJ |
1560 | |
1561 | If the variable is already arranged to become local when set, | |
1562 | this function causes a local value to exist for this buffer, | |
1563 | just as setting the variable would do. | |
1564 | ||
1565 | This function returns VARIABLE, and therefore | |
1566 | (set (make-local-variable 'VARIABLE) VALUE-EXP) | |
1567 | works. | |
1568 | ||
a9908653 RS |
1569 | See also `make-variable-buffer-local'. |
1570 | ||
8c1a1077 | 1571 | Do not use `make-local-variable' to make a hook variable buffer-local. |
515f3f25 | 1572 | Instead, use `add-hook' and specify t for the LOCAL argument. */) |
8c1a1077 | 1573 | (variable) |
d9c2a0f2 | 1574 | register Lisp_Object variable; |
7921925c JB |
1575 | { |
1576 | register Lisp_Object tem, valcontents; | |
1577 | ||
b7826503 | 1578 | CHECK_SYMBOL (variable); |
14970b45 | 1579 | variable = indirect_variable (variable); |
7921925c | 1580 | |
f35d5bad | 1581 | valcontents = SYMBOL_VALUE (variable); |
d9c2a0f2 | 1582 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents)) |
d5db4077 | 1583 | error ("Symbol %s may not be buffer-local", SDATA (SYMBOL_NAME (variable))); |
7921925c | 1584 | |
e9ebc175 | 1585 | if (BUFFER_LOCAL_VALUEP (valcontents) || BUFFER_OBJFWDP (valcontents)) |
7921925c | 1586 | { |
d9c2a0f2 | 1587 | tem = Fboundp (variable); |
7403b5c8 | 1588 | |
7921925c JB |
1589 | /* Make sure the symbol has a local value in this particular buffer, |
1590 | by setting it to the same value it already has. */ | |
d9c2a0f2 EN |
1591 | Fset (variable, (EQ (tem, Qt) ? Fsymbol_value (variable) : Qunbound)); |
1592 | return variable; | |
7921925c | 1593 | } |
42e975f0 | 1594 | /* Make sure symbol is set up to hold per-buffer values. */ |
e9ebc175 | 1595 | if (!SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c | 1596 | { |
8d4afcac | 1597 | Lisp_Object newval; |
7921925c | 1598 | tem = Fcons (Qnil, do_symval_forwarding (valcontents)); |
f3fbd155 | 1599 | XSETCAR (tem, tem); |
8d4afcac | 1600 | newval = allocate_misc (); |
324a6eef | 1601 | XMISCTYPE (newval) = Lisp_Misc_Some_Buffer_Local_Value; |
f35d5bad | 1602 | XBUFFER_LOCAL_VALUE (newval)->realvalue = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1603 | XBUFFER_LOCAL_VALUE (newval)->buffer = Qnil; |
1604 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
1605 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; | |
1606 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; | |
1607 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 0; | |
1608 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
f35d5bad | 1609 | SET_SYMBOL_VALUE (variable, newval);; |
7921925c | 1610 | } |
42e975f0 | 1611 | /* Make sure this buffer has its own value of symbol. */ |
d9c2a0f2 | 1612 | tem = Fassq (variable, current_buffer->local_var_alist); |
a33ef3ab | 1613 | if (NILP (tem)) |
7921925c | 1614 | { |
a5d004a1 RS |
1615 | /* Swap out any local binding for some other buffer, and make |
1616 | sure the current value is permanently recorded, if it's the | |
1617 | default value. */ | |
d9c2a0f2 | 1618 | find_symbol_value (variable); |
a5d004a1 | 1619 | |
7921925c | 1620 | current_buffer->local_var_alist |
f35d5bad | 1621 | = Fcons (Fcons (variable, XCDR (XBUFFER_LOCAL_VALUE (SYMBOL_VALUE (variable))->cdr)), |
7921925c JB |
1622 | current_buffer->local_var_alist); |
1623 | ||
1624 | /* Make sure symbol does not think it is set up for this buffer; | |
42e975f0 | 1625 | force it to look once again for this buffer's value. */ |
7921925c | 1626 | { |
8d4afcac | 1627 | Lisp_Object *pvalbuf; |
a5d004a1 | 1628 | |
f35d5bad | 1629 | valcontents = SYMBOL_VALUE (variable); |
a5d004a1 | 1630 | |
b0c2d1c6 | 1631 | pvalbuf = &XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
8d4afcac KH |
1632 | if (current_buffer == XBUFFER (*pvalbuf)) |
1633 | *pvalbuf = Qnil; | |
b0c2d1c6 | 1634 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; |
7921925c | 1635 | } |
7921925c | 1636 | } |
a5ca2b75 | 1637 | |
42e975f0 RS |
1638 | /* If the symbol forwards into a C variable, then load the binding |
1639 | for this buffer now. If C code modifies the variable before we | |
1640 | load the binding in, then that new value will clobber the default | |
1641 | binding the next time we unload it. */ | |
f35d5bad | 1642 | valcontents = XBUFFER_LOCAL_VALUE (SYMBOL_VALUE (variable))->realvalue; |
e9ebc175 | 1643 | if (INTFWDP (valcontents) || BOOLFWDP (valcontents) || OBJFWDP (valcontents)) |
f35d5bad | 1644 | swap_in_symval_forwarding (variable, SYMBOL_VALUE (variable)); |
a5ca2b75 | 1645 | |
d9c2a0f2 | 1646 | return variable; |
7921925c JB |
1647 | } |
1648 | ||
1649 | DEFUN ("kill-local-variable", Fkill_local_variable, Skill_local_variable, | |
8c1a1077 PJ |
1650 | 1, 1, "vKill Local Variable: ", |
1651 | doc: /* Make VARIABLE no longer have a separate value in the current buffer. | |
bfb96cb7 | 1652 | From now on the default value will apply in this buffer. Return VARIABLE. */) |
8c1a1077 | 1653 | (variable) |
d9c2a0f2 | 1654 | register Lisp_Object variable; |
7921925c JB |
1655 | { |
1656 | register Lisp_Object tem, valcontents; | |
1657 | ||
b7826503 | 1658 | CHECK_SYMBOL (variable); |
14970b45 | 1659 | variable = indirect_variable (variable); |
7921925c | 1660 | |
f35d5bad | 1661 | valcontents = SYMBOL_VALUE (variable); |
7921925c | 1662 | |
e9ebc175 | 1663 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1664 | { |
999b32fd | 1665 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 | 1666 | int idx = PER_BUFFER_IDX (offset); |
7921925c | 1667 | |
999b32fd | 1668 | if (idx > 0) |
7921925c | 1669 | { |
f6cd0527 GM |
1670 | SET_PER_BUFFER_VALUE_P (current_buffer, idx, 0); |
1671 | PER_BUFFER_VALUE (current_buffer, offset) | |
1672 | = PER_BUFFER_DEFAULT (offset); | |
7921925c | 1673 | } |
d9c2a0f2 | 1674 | return variable; |
7921925c JB |
1675 | } |
1676 | ||
e9ebc175 KH |
1677 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1678 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 1679 | return variable; |
7921925c | 1680 | |
42e975f0 | 1681 | /* Get rid of this buffer's alist element, if any. */ |
7921925c | 1682 | |
d9c2a0f2 | 1683 | tem = Fassq (variable, current_buffer->local_var_alist); |
a33ef3ab | 1684 | if (!NILP (tem)) |
8d4afcac KH |
1685 | current_buffer->local_var_alist |
1686 | = Fdelq (tem, current_buffer->local_var_alist); | |
7921925c | 1687 | |
42e975f0 RS |
1688 | /* If the symbol is set up with the current buffer's binding |
1689 | loaded, recompute its value. We have to do it now, or else | |
1690 | forwarded objects won't work right. */ | |
7921925c | 1691 | { |
999e6484 | 1692 | Lisp_Object *pvalbuf, buf; |
f35d5bad | 1693 | valcontents = SYMBOL_VALUE (variable); |
b0c2d1c6 | 1694 | pvalbuf = &XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
999e6484 SM |
1695 | XSETBUFFER (buf, current_buffer); |
1696 | if (EQ (buf, *pvalbuf)) | |
79c83e03 KH |
1697 | { |
1698 | *pvalbuf = Qnil; | |
b0c2d1c6 | 1699 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; |
978dd578 | 1700 | find_symbol_value (variable); |
79c83e03 | 1701 | } |
7921925c JB |
1702 | } |
1703 | ||
d9c2a0f2 | 1704 | return variable; |
7921925c | 1705 | } |
62476adc | 1706 | |
b0c2d1c6 RS |
1707 | /* Lisp functions for creating and removing buffer-local variables. */ |
1708 | ||
1709 | DEFUN ("make-variable-frame-local", Fmake_variable_frame_local, Smake_variable_frame_local, | |
8c1a1077 PJ |
1710 | 1, 1, "vMake Variable Frame Local: ", |
1711 | doc: /* Enable VARIABLE to have frame-local bindings. | |
4d4d36b1 RS |
1712 | This does not create any frame-local bindings for VARIABLE, |
1713 | it just makes them possible. | |
1714 | ||
1715 | A frame-local binding is actually a frame parameter value. | |
1716 | If a frame F has a value for the frame parameter named VARIABLE, | |
1717 | that also acts as a frame-local binding for VARIABLE in F-- | |
1718 | provided this function has been called to enable VARIABLE | |
1719 | to have frame-local bindings at all. | |
1720 | ||
1721 | The only way to create a frame-local binding for VARIABLE in a frame | |
1722 | is to set the VARIABLE frame parameter of that frame. See | |
1723 | `modify-frame-parameters' for how to set frame parameters. | |
1724 | ||
1725 | Buffer-local bindings take precedence over frame-local bindings. */) | |
8c1a1077 | 1726 | (variable) |
b0c2d1c6 RS |
1727 | register Lisp_Object variable; |
1728 | { | |
1729 | register Lisp_Object tem, valcontents, newval; | |
1730 | ||
b7826503 | 1731 | CHECK_SYMBOL (variable); |
14970b45 | 1732 | variable = indirect_variable (variable); |
b0c2d1c6 | 1733 | |
f35d5bad | 1734 | valcontents = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1735 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents) |
1736 | || BUFFER_OBJFWDP (valcontents)) | |
d5db4077 | 1737 | error ("Symbol %s may not be frame-local", SDATA (SYMBOL_NAME (variable))); |
b0c2d1c6 RS |
1738 | |
1739 | if (BUFFER_LOCAL_VALUEP (valcontents) | |
1740 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
42e975f0 RS |
1741 | { |
1742 | XBUFFER_LOCAL_VALUE (valcontents)->check_frame = 1; | |
1743 | return variable; | |
1744 | } | |
b0c2d1c6 RS |
1745 | |
1746 | if (EQ (valcontents, Qunbound)) | |
f35d5bad | 1747 | SET_SYMBOL_VALUE (variable, Qnil); |
b0c2d1c6 | 1748 | tem = Fcons (Qnil, Fsymbol_value (variable)); |
f3fbd155 | 1749 | XSETCAR (tem, tem); |
b0c2d1c6 RS |
1750 | newval = allocate_misc (); |
1751 | XMISCTYPE (newval) = Lisp_Misc_Some_Buffer_Local_Value; | |
f35d5bad | 1752 | XBUFFER_LOCAL_VALUE (newval)->realvalue = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1753 | XBUFFER_LOCAL_VALUE (newval)->buffer = Qnil; |
1754 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
1755 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; | |
1756 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; | |
1757 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 1; | |
1758 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
f35d5bad | 1759 | SET_SYMBOL_VALUE (variable, newval); |
b0c2d1c6 RS |
1760 | return variable; |
1761 | } | |
1762 | ||
62476adc | 1763 | DEFUN ("local-variable-p", Flocal_variable_p, Slocal_variable_p, |
8c1a1077 PJ |
1764 | 1, 2, 0, |
1765 | doc: /* Non-nil if VARIABLE has a local binding in buffer BUFFER. | |
1766 | BUFFER defaults to the current buffer. */) | |
1767 | (variable, buffer) | |
d9c2a0f2 | 1768 | register Lisp_Object variable, buffer; |
62476adc RS |
1769 | { |
1770 | Lisp_Object valcontents; | |
c48ead86 KH |
1771 | register struct buffer *buf; |
1772 | ||
1773 | if (NILP (buffer)) | |
1774 | buf = current_buffer; | |
1775 | else | |
1776 | { | |
b7826503 | 1777 | CHECK_BUFFER (buffer); |
c48ead86 KH |
1778 | buf = XBUFFER (buffer); |
1779 | } | |
62476adc | 1780 | |
b7826503 | 1781 | CHECK_SYMBOL (variable); |
14970b45 | 1782 | variable = indirect_variable (variable); |
62476adc | 1783 | |
f35d5bad | 1784 | valcontents = SYMBOL_VALUE (variable); |
c48ead86 | 1785 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1e5f16fa | 1786 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
c48ead86 KH |
1787 | { |
1788 | Lisp_Object tail, elt; | |
f35d5bad | 1789 | |
7539e11f | 1790 | for (tail = buf->local_var_alist; CONSP (tail); tail = XCDR (tail)) |
c48ead86 | 1791 | { |
7539e11f KR |
1792 | elt = XCAR (tail); |
1793 | if (EQ (variable, XCAR (elt))) | |
c48ead86 KH |
1794 | return Qt; |
1795 | } | |
1796 | } | |
1797 | if (BUFFER_OBJFWDP (valcontents)) | |
1798 | { | |
1799 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
f6cd0527 GM |
1800 | int idx = PER_BUFFER_IDX (offset); |
1801 | if (idx == -1 || PER_BUFFER_VALUE_P (buf, idx)) | |
c48ead86 KH |
1802 | return Qt; |
1803 | } | |
1804 | return Qnil; | |
62476adc | 1805 | } |
f4f04cee RS |
1806 | |
1807 | DEFUN ("local-variable-if-set-p", Flocal_variable_if_set_p, Slocal_variable_if_set_p, | |
8c1a1077 | 1808 | 1, 2, 0, |
1dc5ba01 LT |
1809 | doc: /* Non-nil if VARIABLE will be local in buffer BUFFER when set there. |
1810 | More precisely, this means that setting the variable \(with `set' or`setq'), | |
1811 | while it does not have a `let'-style binding that was made in BUFFER, | |
1812 | will produce a buffer local binding. See Info node | |
1813 | `(elisp)Creating Buffer-Local'. | |
8c1a1077 PJ |
1814 | BUFFER defaults to the current buffer. */) |
1815 | (variable, buffer) | |
d9c2a0f2 | 1816 | register Lisp_Object variable, buffer; |
f4f04cee RS |
1817 | { |
1818 | Lisp_Object valcontents; | |
1819 | register struct buffer *buf; | |
1820 | ||
1821 | if (NILP (buffer)) | |
1822 | buf = current_buffer; | |
1823 | else | |
1824 | { | |
b7826503 | 1825 | CHECK_BUFFER (buffer); |
f4f04cee RS |
1826 | buf = XBUFFER (buffer); |
1827 | } | |
1828 | ||
b7826503 | 1829 | CHECK_SYMBOL (variable); |
14970b45 | 1830 | variable = indirect_variable (variable); |
f4f04cee | 1831 | |
f35d5bad | 1832 | valcontents = SYMBOL_VALUE (variable); |
f4f04cee RS |
1833 | |
1834 | /* This means that make-variable-buffer-local was done. */ | |
1835 | if (BUFFER_LOCAL_VALUEP (valcontents)) | |
1836 | return Qt; | |
1837 | /* All these slots become local if they are set. */ | |
1838 | if (BUFFER_OBJFWDP (valcontents)) | |
1839 | return Qt; | |
1840 | if (SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
1841 | { | |
1842 | Lisp_Object tail, elt; | |
7539e11f | 1843 | for (tail = buf->local_var_alist; CONSP (tail); tail = XCDR (tail)) |
f4f04cee | 1844 | { |
7539e11f KR |
1845 | elt = XCAR (tail); |
1846 | if (EQ (variable, XCAR (elt))) | |
f4f04cee RS |
1847 | return Qt; |
1848 | } | |
1849 | } | |
1850 | return Qnil; | |
1851 | } | |
0a2546d4 RS |
1852 | |
1853 | DEFUN ("variable-binding-locus", Fvariable_binding_locus, Svariable_binding_locus, | |
1854 | 1, 1, 0, | |
1855 | doc: /* Return a value indicating where VARIABLE's current binding comes from. | |
1856 | If the current binding is buffer-local, the value is the current buffer. | |
1857 | If the current binding is frame-local, the value is the selected frame. | |
1858 | If the current binding is global (the default), the value is nil. */) | |
1859 | (variable) | |
1860 | register Lisp_Object variable; | |
1861 | { | |
1862 | Lisp_Object valcontents; | |
1863 | ||
1864 | CHECK_SYMBOL (variable); | |
1865 | variable = indirect_variable (variable); | |
1866 | ||
1867 | /* Make sure the current binding is actually swapped in. */ | |
1868 | find_symbol_value (variable); | |
1869 | ||
1870 | valcontents = XSYMBOL (variable)->value; | |
1871 | ||
1872 | if (BUFFER_LOCAL_VALUEP (valcontents) | |
1873 | || SOME_BUFFER_LOCAL_VALUEP (valcontents) | |
1874 | || BUFFER_OBJFWDP (valcontents)) | |
1875 | { | |
1876 | /* For a local variable, record both the symbol and which | |
1877 | buffer's or frame's value we are saving. */ | |
1878 | if (!NILP (Flocal_variable_p (variable, Qnil))) | |
1879 | return Fcurrent_buffer (); | |
1880 | else if (!BUFFER_OBJFWDP (valcontents) | |
1881 | && XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame) | |
1882 | return XBUFFER_LOCAL_VALUE (valcontents)->frame; | |
1883 | } | |
1884 | ||
1885 | return Qnil; | |
1886 | } | |
7921925c | 1887 | \f |
ffd56f97 JB |
1888 | /* Find the function at the end of a chain of symbol function indirections. */ |
1889 | ||
1890 | /* If OBJECT is a symbol, find the end of its function chain and | |
1891 | return the value found there. If OBJECT is not a symbol, just | |
1892 | return it. If there is a cycle in the function chain, signal a | |
1893 | cyclic-function-indirection error. | |
1894 | ||
1895 | This is like Findirect_function, except that it doesn't signal an | |
1896 | error if the chain ends up unbound. */ | |
1897 | Lisp_Object | |
a2932990 | 1898 | indirect_function (object) |
62476adc | 1899 | register Lisp_Object object; |
ffd56f97 | 1900 | { |
eb8c3be9 | 1901 | Lisp_Object tortoise, hare; |
ffd56f97 | 1902 | |
eb8c3be9 | 1903 | hare = tortoise = object; |
ffd56f97 JB |
1904 | |
1905 | for (;;) | |
1906 | { | |
e9ebc175 | 1907 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
1908 | break; |
1909 | hare = XSYMBOL (hare)->function; | |
e9ebc175 | 1910 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
1911 | break; |
1912 | hare = XSYMBOL (hare)->function; | |
1913 | ||
eb8c3be9 | 1914 | tortoise = XSYMBOL (tortoise)->function; |
ffd56f97 | 1915 | |
eb8c3be9 | 1916 | if (EQ (hare, tortoise)) |
ffd56f97 JB |
1917 | Fsignal (Qcyclic_function_indirection, Fcons (object, Qnil)); |
1918 | } | |
1919 | ||
1920 | return hare; | |
1921 | } | |
1922 | ||
1923 | DEFUN ("indirect-function", Findirect_function, Sindirect_function, 1, 1, 0, | |
8c1a1077 PJ |
1924 | doc: /* Return the function at the end of OBJECT's function chain. |
1925 | If OBJECT is a symbol, follow all function indirections and return the final | |
1926 | function binding. | |
1927 | If OBJECT is not a symbol, just return it. | |
1928 | Signal a void-function error if the final symbol is unbound. | |
1929 | Signal a cyclic-function-indirection error if there is a loop in the | |
1930 | function chain of symbols. */) | |
1931 | (object) | |
1932 | register Lisp_Object object; | |
ffd56f97 JB |
1933 | { |
1934 | Lisp_Object result; | |
1935 | ||
1936 | result = indirect_function (object); | |
1937 | ||
1938 | if (EQ (result, Qunbound)) | |
1939 | return Fsignal (Qvoid_function, Fcons (object, Qnil)); | |
1940 | return result; | |
1941 | } | |
1942 | \f | |
7921925c JB |
1943 | /* Extract and set vector and string elements */ |
1944 | ||
1945 | DEFUN ("aref", Faref, Saref, 2, 2, 0, | |
8c1a1077 PJ |
1946 | doc: /* Return the element of ARRAY at index IDX. |
1947 | ARRAY may be a vector, a string, a char-table, a bool-vector, | |
1948 | or a byte-code object. IDX starts at 0. */) | |
1949 | (array, idx) | |
7921925c JB |
1950 | register Lisp_Object array; |
1951 | Lisp_Object idx; | |
1952 | { | |
1953 | register int idxval; | |
1954 | ||
b7826503 | 1955 | CHECK_NUMBER (idx); |
7921925c | 1956 | idxval = XINT (idx); |
e9ebc175 | 1957 | if (STRINGP (array)) |
7921925c | 1958 | { |
25638b07 RS |
1959 | int c, idxval_byte; |
1960 | ||
d5db4077 | 1961 | if (idxval < 0 || idxval >= SCHARS (array)) |
c24e4efe | 1962 | args_out_of_range (array, idx); |
25638b07 | 1963 | if (! STRING_MULTIBYTE (array)) |
d5db4077 | 1964 | return make_number ((unsigned char) SREF (array, idxval)); |
25638b07 RS |
1965 | idxval_byte = string_char_to_byte (array, idxval); |
1966 | ||
29f44a37 | 1967 | c = STRING_CHAR (SDATA (array) + idxval_byte, |
d5db4077 | 1968 | SBYTES (array) - idxval_byte); |
25638b07 | 1969 | return make_number (c); |
7921925c | 1970 | } |
4d276982 RS |
1971 | else if (BOOL_VECTOR_P (array)) |
1972 | { | |
1973 | int val; | |
4d276982 RS |
1974 | |
1975 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
1976 | args_out_of_range (array, idx); | |
1977 | ||
b9ed2177 AS |
1978 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR]; |
1979 | return (val & (1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR)) ? Qt : Qnil); | |
4d276982 RS |
1980 | } |
1981 | else if (CHAR_TABLE_P (array)) | |
1982 | { | |
1983 | Lisp_Object val; | |
1984 | ||
6bbd7a29 GM |
1985 | val = Qnil; |
1986 | ||
4d276982 RS |
1987 | if (idxval < 0) |
1988 | args_out_of_range (array, idx); | |
ab5c3f93 | 1989 | if (idxval < CHAR_TABLE_ORDINARY_SLOTS) |
8313c4e7 | 1990 | { |
256d566c KH |
1991 | if (! SINGLE_BYTE_CHAR_P (idxval)) |
1992 | args_out_of_range (array, idx); | |
39e16e51 | 1993 | /* For ASCII and 8-bit European characters, the element is |
3a6cf6bd | 1994 | stored in the top table. */ |
8313c4e7 | 1995 | val = XCHAR_TABLE (array)->contents[idxval]; |
256d566c KH |
1996 | if (NILP (val)) |
1997 | { | |
1998 | int default_slot | |
1999 | = (idxval < 0x80 ? CHAR_TABLE_DEFAULT_SLOT_ASCII | |
2000 | : idxval < 0xA0 ? CHAR_TABLE_DEFAULT_SLOT_8_BIT_CONTROL | |
2001 | : CHAR_TABLE_DEFAULT_SLOT_8_BIT_GRAPHIC); | |
2002 | val = XCHAR_TABLE (array)->contents[default_slot]; | |
2003 | } | |
8313c4e7 KH |
2004 | if (NILP (val)) |
2005 | val = XCHAR_TABLE (array)->defalt; | |
2006 | while (NILP (val)) /* Follow parents until we find some value. */ | |
2007 | { | |
2008 | array = XCHAR_TABLE (array)->parent; | |
2009 | if (NILP (array)) | |
2010 | return Qnil; | |
2011 | val = XCHAR_TABLE (array)->contents[idxval]; | |
2012 | if (NILP (val)) | |
2013 | val = XCHAR_TABLE (array)->defalt; | |
2014 | } | |
2015 | return val; | |
2016 | } | |
4d276982 RS |
2017 | else |
2018 | { | |
39e16e51 KH |
2019 | int code[4], i; |
2020 | Lisp_Object sub_table; | |
256d566c | 2021 | Lisp_Object current_default; |
8313c4e7 | 2022 | |
37309c9d | 2023 | SPLIT_CHAR (idxval, code[0], code[1], code[2]); |
e19c1eb4 KH |
2024 | if (code[1] < 32) code[1] = -1; |
2025 | else if (code[2] < 32) code[2] = -1; | |
2026 | ||
39e16e51 KH |
2027 | /* Here, the possible range of CODE[0] (== charset ID) is |
2028 | 128..MAX_CHARSET. Since the top level char table contains | |
2029 | data for multibyte characters after 256th element, we must | |
2030 | increment CODE[0] by 128 to get a correct index. */ | |
2031 | code[0] += 128; | |
2032 | code[3] = -1; /* anchor */ | |
4d276982 RS |
2033 | |
2034 | try_parent_char_table: | |
256d566c | 2035 | current_default = XCHAR_TABLE (array)->defalt; |
39e16e51 KH |
2036 | sub_table = array; |
2037 | for (i = 0; code[i] >= 0; i++) | |
4d276982 | 2038 | { |
39e16e51 KH |
2039 | val = XCHAR_TABLE (sub_table)->contents[code[i]]; |
2040 | if (SUB_CHAR_TABLE_P (val)) | |
256d566c KH |
2041 | { |
2042 | sub_table = val; | |
2043 | if (! NILP (XCHAR_TABLE (sub_table)->defalt)) | |
2044 | current_default = XCHAR_TABLE (sub_table)->defalt; | |
2045 | } | |
39e16e51 | 2046 | else |
8313c4e7 | 2047 | { |
39e16e51 | 2048 | if (NILP (val)) |
256d566c | 2049 | val = current_default; |
39e16e51 KH |
2050 | if (NILP (val)) |
2051 | { | |
2052 | array = XCHAR_TABLE (array)->parent; | |
2053 | if (!NILP (array)) | |
2054 | goto try_parent_char_table; | |
2055 | } | |
2056 | return val; | |
8313c4e7 | 2057 | } |
4d276982 | 2058 | } |
256d566c KH |
2059 | /* Reaching here means IDXVAL is a generic character in |
2060 | which each character or a group has independent value. | |
2061 | Essentially it's nonsense to get a value for such a | |
2062 | generic character, but for backward compatibility, we try | |
2063 | the default value and parent. */ | |
2064 | val = current_default; | |
8313c4e7 | 2065 | if (NILP (val)) |
4d276982 RS |
2066 | { |
2067 | array = XCHAR_TABLE (array)->parent; | |
39e16e51 KH |
2068 | if (!NILP (array)) |
2069 | goto try_parent_char_table; | |
4d276982 | 2070 | } |
4d276982 RS |
2071 | return val; |
2072 | } | |
4d276982 | 2073 | } |
7921925c | 2074 | else |
c24e4efe | 2075 | { |
6bbd7a29 | 2076 | int size = 0; |
7f358972 RS |
2077 | if (VECTORP (array)) |
2078 | size = XVECTOR (array)->size; | |
2079 | else if (COMPILEDP (array)) | |
2080 | size = XVECTOR (array)->size & PSEUDOVECTOR_SIZE_MASK; | |
2081 | else | |
2082 | wrong_type_argument (Qarrayp, array); | |
2083 | ||
2084 | if (idxval < 0 || idxval >= size) | |
c24e4efe KH |
2085 | args_out_of_range (array, idx); |
2086 | return XVECTOR (array)->contents[idxval]; | |
2087 | } | |
7921925c JB |
2088 | } |
2089 | ||
2090 | DEFUN ("aset", Faset, Saset, 3, 3, 0, | |
8c1a1077 | 2091 | doc: /* Store into the element of ARRAY at index IDX the value NEWELT. |
bfb96cb7 FP |
2092 | Return NEWELT. ARRAY may be a vector, a string, a char-table or a |
2093 | bool-vector. IDX starts at 0. */) | |
8c1a1077 | 2094 | (array, idx, newelt) |
7921925c JB |
2095 | register Lisp_Object array; |
2096 | Lisp_Object idx, newelt; | |
2097 | { | |
2098 | register int idxval; | |
2099 | ||
b7826503 | 2100 | CHECK_NUMBER (idx); |
7921925c | 2101 | idxval = XINT (idx); |
4d276982 RS |
2102 | if (!VECTORP (array) && !STRINGP (array) && !BOOL_VECTOR_P (array) |
2103 | && ! CHAR_TABLE_P (array)) | |
7921925c | 2104 | array = wrong_type_argument (Qarrayp, array); |
7921925c JB |
2105 | CHECK_IMPURE (array); |
2106 | ||
e9ebc175 | 2107 | if (VECTORP (array)) |
c24e4efe KH |
2108 | { |
2109 | if (idxval < 0 || idxval >= XVECTOR (array)->size) | |
2110 | args_out_of_range (array, idx); | |
2111 | XVECTOR (array)->contents[idxval] = newelt; | |
2112 | } | |
4d276982 RS |
2113 | else if (BOOL_VECTOR_P (array)) |
2114 | { | |
2115 | int val; | |
4d276982 RS |
2116 | |
2117 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
2118 | args_out_of_range (array, idx); | |
2119 | ||
b9ed2177 | 2120 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR]; |
4d276982 RS |
2121 | |
2122 | if (! NILP (newelt)) | |
b9ed2177 | 2123 | val |= 1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR); |
4d276982 | 2124 | else |
b9ed2177 AS |
2125 | val &= ~(1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR)); |
2126 | XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR] = val; | |
4d276982 RS |
2127 | } |
2128 | else if (CHAR_TABLE_P (array)) | |
2129 | { | |
4d276982 RS |
2130 | if (idxval < 0) |
2131 | args_out_of_range (array, idx); | |
ab5c3f93 | 2132 | if (idxval < CHAR_TABLE_ORDINARY_SLOTS) |
256d566c KH |
2133 | { |
2134 | if (! SINGLE_BYTE_CHAR_P (idxval)) | |
2135 | args_out_of_range (array, idx); | |
2136 | XCHAR_TABLE (array)->contents[idxval] = newelt; | |
2137 | } | |
4d276982 RS |
2138 | else |
2139 | { | |
39e16e51 | 2140 | int code[4], i; |
8313c4e7 | 2141 | Lisp_Object val; |
4d276982 | 2142 | |
37309c9d | 2143 | SPLIT_CHAR (idxval, code[0], code[1], code[2]); |
e19c1eb4 KH |
2144 | if (code[1] < 32) code[1] = -1; |
2145 | else if (code[2] < 32) code[2] = -1; | |
2146 | ||
39e16e51 KH |
2147 | /* See the comment of the corresponding part in Faref. */ |
2148 | code[0] += 128; | |
2149 | code[3] = -1; /* anchor */ | |
2150 | for (i = 0; code[i + 1] >= 0; i++) | |
8313c4e7 | 2151 | { |
39e16e51 KH |
2152 | val = XCHAR_TABLE (array)->contents[code[i]]; |
2153 | if (SUB_CHAR_TABLE_P (val)) | |
8313c4e7 KH |
2154 | array = val; |
2155 | else | |
3c8fccc3 RS |
2156 | { |
2157 | Lisp_Object temp; | |
2158 | ||
2159 | /* VAL is a leaf. Create a sub char table with the | |
256d566c | 2160 | initial value VAL and look into it. */ |
3c8fccc3 | 2161 | |
256d566c | 2162 | temp = make_sub_char_table (val); |
3c8fccc3 RS |
2163 | XCHAR_TABLE (array)->contents[code[i]] = temp; |
2164 | array = temp; | |
2165 | } | |
8313c4e7 | 2166 | } |
39e16e51 | 2167 | XCHAR_TABLE (array)->contents[code[i]] = newelt; |
4d276982 | 2168 | } |
4d276982 | 2169 | } |
25638b07 RS |
2170 | else if (STRING_MULTIBYTE (array)) |
2171 | { | |
c6464167 | 2172 | int idxval_byte, prev_bytes, new_bytes, nbytes; |
3c9de1af | 2173 | unsigned char workbuf[MAX_MULTIBYTE_LENGTH], *p0 = workbuf, *p1; |
25638b07 | 2174 | |
d5db4077 | 2175 | if (idxval < 0 || idxval >= SCHARS (array)) |
25638b07 | 2176 | args_out_of_range (array, idx); |
b7826503 | 2177 | CHECK_NUMBER (newelt); |
25638b07 | 2178 | |
c6464167 MB |
2179 | nbytes = SBYTES (array); |
2180 | ||
25638b07 | 2181 | idxval_byte = string_char_to_byte (array, idxval); |
29f44a37 | 2182 | p1 = SDATA (array) + idxval_byte; |
3c9de1af KH |
2183 | PARSE_MULTIBYTE_SEQ (p1, nbytes - idxval_byte, prev_bytes); |
2184 | new_bytes = CHAR_STRING (XINT (newelt), p0); | |
2185 | if (prev_bytes != new_bytes) | |
2186 | { | |
2187 | /* We must relocate the string data. */ | |
d5db4077 | 2188 | int nchars = SCHARS (array); |
3c9de1af | 2189 | unsigned char *str; |
f1a87317 | 2190 | USE_SAFE_ALLOCA; |
3c9de1af | 2191 | |
f1a87317 | 2192 | SAFE_ALLOCA (str, unsigned char *, nbytes); |
d5db4077 | 2193 | bcopy (SDATA (array), str, nbytes); |
3c9de1af KH |
2194 | allocate_string_data (XSTRING (array), nchars, |
2195 | nbytes + new_bytes - prev_bytes); | |
d5db4077 KR |
2196 | bcopy (str, SDATA (array), idxval_byte); |
2197 | p1 = SDATA (array) + idxval_byte; | |
3c9de1af KH |
2198 | bcopy (str + idxval_byte + prev_bytes, p1 + new_bytes, |
2199 | nbytes - (idxval_byte + prev_bytes)); | |
233f3db6 | 2200 | SAFE_FREE (); |
3c9de1af KH |
2201 | clear_string_char_byte_cache (); |
2202 | } | |
2203 | while (new_bytes--) | |
2204 | *p1++ = *p0++; | |
25638b07 | 2205 | } |
7921925c JB |
2206 | else |
2207 | { | |
d5db4077 | 2208 | if (idxval < 0 || idxval >= SCHARS (array)) |
c24e4efe | 2209 | args_out_of_range (array, idx); |
b7826503 | 2210 | CHECK_NUMBER (newelt); |
3c9de1af KH |
2211 | |
2212 | if (XINT (newelt) < 0 || SINGLE_BYTE_CHAR_P (XINT (newelt))) | |
29f44a37 | 2213 | SSET (array, idxval, XINT (newelt)); |
3c9de1af KH |
2214 | else |
2215 | { | |
2216 | /* We must relocate the string data while converting it to | |
2217 | multibyte. */ | |
2218 | int idxval_byte, prev_bytes, new_bytes; | |
2219 | unsigned char workbuf[MAX_MULTIBYTE_LENGTH], *p0 = workbuf, *p1; | |
d5db4077 | 2220 | unsigned char *origstr = SDATA (array), *str; |
3c9de1af | 2221 | int nchars, nbytes; |
f1a87317 | 2222 | USE_SAFE_ALLOCA; |
3c9de1af | 2223 | |
d5db4077 | 2224 | nchars = SCHARS (array); |
3c9de1af KH |
2225 | nbytes = idxval_byte = count_size_as_multibyte (origstr, idxval); |
2226 | nbytes += count_size_as_multibyte (origstr + idxval, | |
2227 | nchars - idxval); | |
f1a87317 | 2228 | SAFE_ALLOCA (str, unsigned char *, nbytes); |
d5db4077 | 2229 | copy_text (SDATA (array), str, nchars, 0, 1); |
3c9de1af KH |
2230 | PARSE_MULTIBYTE_SEQ (str + idxval_byte, nbytes - idxval_byte, |
2231 | prev_bytes); | |
2232 | new_bytes = CHAR_STRING (XINT (newelt), p0); | |
2233 | allocate_string_data (XSTRING (array), nchars, | |
2234 | nbytes + new_bytes - prev_bytes); | |
d5db4077 KR |
2235 | bcopy (str, SDATA (array), idxval_byte); |
2236 | p1 = SDATA (array) + idxval_byte; | |
3c9de1af KH |
2237 | while (new_bytes--) |
2238 | *p1++ = *p0++; | |
2239 | bcopy (str + idxval_byte + prev_bytes, p1, | |
2240 | nbytes - (idxval_byte + prev_bytes)); | |
233f3db6 | 2241 | SAFE_FREE (); |
3c9de1af KH |
2242 | clear_string_char_byte_cache (); |
2243 | } | |
7921925c JB |
2244 | } |
2245 | ||
2246 | return newelt; | |
2247 | } | |
7921925c JB |
2248 | \f |
2249 | /* Arithmetic functions */ | |
2250 | ||
2251 | enum comparison { equal, notequal, less, grtr, less_or_equal, grtr_or_equal }; | |
2252 | ||
2253 | Lisp_Object | |
2254 | arithcompare (num1, num2, comparison) | |
2255 | Lisp_Object num1, num2; | |
2256 | enum comparison comparison; | |
2257 | { | |
6bbd7a29 | 2258 | double f1 = 0, f2 = 0; |
7921925c JB |
2259 | int floatp = 0; |
2260 | ||
b7826503 PJ |
2261 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1); |
2262 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2); | |
7921925c | 2263 | |
e9ebc175 | 2264 | if (FLOATP (num1) || FLOATP (num2)) |
7921925c JB |
2265 | { |
2266 | floatp = 1; | |
7539e11f KR |
2267 | f1 = (FLOATP (num1)) ? XFLOAT_DATA (num1) : XINT (num1); |
2268 | f2 = (FLOATP (num2)) ? XFLOAT_DATA (num2) : XINT (num2); | |
7921925c | 2269 | } |
7921925c JB |
2270 | |
2271 | switch (comparison) | |
2272 | { | |
2273 | case equal: | |
2274 | if (floatp ? f1 == f2 : XINT (num1) == XINT (num2)) | |
2275 | return Qt; | |
2276 | return Qnil; | |
2277 | ||
2278 | case notequal: | |
2279 | if (floatp ? f1 != f2 : XINT (num1) != XINT (num2)) | |
2280 | return Qt; | |
2281 | return Qnil; | |
2282 | ||
2283 | case less: | |
2284 | if (floatp ? f1 < f2 : XINT (num1) < XINT (num2)) | |
2285 | return Qt; | |
2286 | return Qnil; | |
2287 | ||
2288 | case less_or_equal: | |
2289 | if (floatp ? f1 <= f2 : XINT (num1) <= XINT (num2)) | |
2290 | return Qt; | |
2291 | return Qnil; | |
2292 | ||
2293 | case grtr: | |
2294 | if (floatp ? f1 > f2 : XINT (num1) > XINT (num2)) | |
2295 | return Qt; | |
2296 | return Qnil; | |
2297 | ||
2298 | case grtr_or_equal: | |
2299 | if (floatp ? f1 >= f2 : XINT (num1) >= XINT (num2)) | |
2300 | return Qt; | |
2301 | return Qnil; | |
25e40a4b JB |
2302 | |
2303 | default: | |
2304 | abort (); | |
7921925c JB |
2305 | } |
2306 | } | |
2307 | ||
2308 | DEFUN ("=", Feqlsign, Seqlsign, 2, 2, 0, | |
8c1a1077 PJ |
2309 | doc: /* Return t if two args, both numbers or markers, are equal. */) |
2310 | (num1, num2) | |
7921925c JB |
2311 | register Lisp_Object num1, num2; |
2312 | { | |
2313 | return arithcompare (num1, num2, equal); | |
2314 | } | |
2315 | ||
2316 | DEFUN ("<", Flss, Slss, 2, 2, 0, | |
8c1a1077 PJ |
2317 | doc: /* Return t if first arg is less than second arg. Both must be numbers or markers. */) |
2318 | (num1, num2) | |
7921925c JB |
2319 | register Lisp_Object num1, num2; |
2320 | { | |
2321 | return arithcompare (num1, num2, less); | |
2322 | } | |
2323 | ||
2324 | DEFUN (">", Fgtr, Sgtr, 2, 2, 0, | |
8c1a1077 PJ |
2325 | doc: /* Return t if first arg is greater than second arg. Both must be numbers or markers. */) |
2326 | (num1, num2) | |
7921925c JB |
2327 | register Lisp_Object num1, num2; |
2328 | { | |
2329 | return arithcompare (num1, num2, grtr); | |
2330 | } | |
2331 | ||
2332 | DEFUN ("<=", Fleq, Sleq, 2, 2, 0, | |
8c1a1077 PJ |
2333 | doc: /* Return t if first arg is less than or equal to second arg. |
2334 | Both must be numbers or markers. */) | |
2335 | (num1, num2) | |
7921925c JB |
2336 | register Lisp_Object num1, num2; |
2337 | { | |
2338 | return arithcompare (num1, num2, less_or_equal); | |
2339 | } | |
2340 | ||
2341 | DEFUN (">=", Fgeq, Sgeq, 2, 2, 0, | |
8c1a1077 PJ |
2342 | doc: /* Return t if first arg is greater than or equal to second arg. |
2343 | Both must be numbers or markers. */) | |
2344 | (num1, num2) | |
7921925c JB |
2345 | register Lisp_Object num1, num2; |
2346 | { | |
2347 | return arithcompare (num1, num2, grtr_or_equal); | |
2348 | } | |
2349 | ||
2350 | DEFUN ("/=", Fneq, Sneq, 2, 2, 0, | |
8c1a1077 PJ |
2351 | doc: /* Return t if first arg is not equal to second arg. Both must be numbers or markers. */) |
2352 | (num1, num2) | |
7921925c JB |
2353 | register Lisp_Object num1, num2; |
2354 | { | |
2355 | return arithcompare (num1, num2, notequal); | |
2356 | } | |
2357 | ||
8c1a1077 PJ |
2358 | DEFUN ("zerop", Fzerop, Szerop, 1, 1, 0, |
2359 | doc: /* Return t if NUMBER is zero. */) | |
2360 | (number) | |
d9c2a0f2 | 2361 | register Lisp_Object number; |
7921925c | 2362 | { |
b7826503 | 2363 | CHECK_NUMBER_OR_FLOAT (number); |
7921925c | 2364 | |
d9c2a0f2 | 2365 | if (FLOATP (number)) |
7921925c | 2366 | { |
7539e11f | 2367 | if (XFLOAT_DATA (number) == 0.0) |
7921925c JB |
2368 | return Qt; |
2369 | return Qnil; | |
2370 | } | |
7921925c | 2371 | |
d9c2a0f2 | 2372 | if (!XINT (number)) |
7921925c JB |
2373 | return Qt; |
2374 | return Qnil; | |
2375 | } | |
2376 | \f | |
34f4f6c6 | 2377 | /* Convert between long values and pairs of Lisp integers. */ |
51cf3e31 JB |
2378 | |
2379 | Lisp_Object | |
2380 | long_to_cons (i) | |
2381 | unsigned long i; | |
2382 | { | |
9bc7166b | 2383 | unsigned long top = i >> 16; |
51cf3e31 JB |
2384 | unsigned int bot = i & 0xFFFF; |
2385 | if (top == 0) | |
2386 | return make_number (bot); | |
b42cfa11 | 2387 | if (top == (unsigned long)-1 >> 16) |
51cf3e31 JB |
2388 | return Fcons (make_number (-1), make_number (bot)); |
2389 | return Fcons (make_number (top), make_number (bot)); | |
2390 | } | |
2391 | ||
2392 | unsigned long | |
2393 | cons_to_long (c) | |
2394 | Lisp_Object c; | |
2395 | { | |
878a80cc | 2396 | Lisp_Object top, bot; |
51cf3e31 JB |
2397 | if (INTEGERP (c)) |
2398 | return XINT (c); | |
7539e11f KR |
2399 | top = XCAR (c); |
2400 | bot = XCDR (c); | |
51cf3e31 | 2401 | if (CONSP (bot)) |
7539e11f | 2402 | bot = XCAR (bot); |
51cf3e31 JB |
2403 | return ((XINT (top) << 16) | XINT (bot)); |
2404 | } | |
2405 | \f | |
f2980264 | 2406 | DEFUN ("number-to-string", Fnumber_to_string, Snumber_to_string, 1, 1, 0, |
bfb96cb7 | 2407 | doc: /* Return the decimal representation of NUMBER as a string. |
8c1a1077 PJ |
2408 | Uses a minus sign if negative. |
2409 | NUMBER may be an integer or a floating point number. */) | |
2410 | (number) | |
d9c2a0f2 | 2411 | Lisp_Object number; |
7921925c | 2412 | { |
6030ce64 | 2413 | char buffer[VALBITS]; |
7921925c | 2414 | |
b7826503 | 2415 | CHECK_NUMBER_OR_FLOAT (number); |
7921925c | 2416 | |
d9c2a0f2 | 2417 | if (FLOATP (number)) |
7921925c JB |
2418 | { |
2419 | char pigbuf[350]; /* see comments in float_to_string */ | |
2420 | ||
7539e11f | 2421 | float_to_string (pigbuf, XFLOAT_DATA (number)); |
7403b5c8 | 2422 | return build_string (pigbuf); |
7921925c | 2423 | } |
7921925c | 2424 | |
e6c82a8d | 2425 | if (sizeof (int) == sizeof (EMACS_INT)) |
d9c2a0f2 | 2426 | sprintf (buffer, "%d", XINT (number)); |
e6c82a8d | 2427 | else if (sizeof (long) == sizeof (EMACS_INT)) |
dd8daec5 | 2428 | sprintf (buffer, "%ld", (long) XINT (number)); |
e6c82a8d RS |
2429 | else |
2430 | abort (); | |
7921925c JB |
2431 | return build_string (buffer); |
2432 | } | |
2433 | ||
3883fbeb RS |
2434 | INLINE static int |
2435 | digit_to_number (character, base) | |
2436 | int character, base; | |
2437 | { | |
2438 | int digit; | |
2439 | ||
2440 | if (character >= '0' && character <= '9') | |
2441 | digit = character - '0'; | |
2442 | else if (character >= 'a' && character <= 'z') | |
2443 | digit = character - 'a' + 10; | |
2444 | else if (character >= 'A' && character <= 'Z') | |
2445 | digit = character - 'A' + 10; | |
2446 | else | |
2447 | return -1; | |
2448 | ||
2449 | if (digit >= base) | |
2450 | return -1; | |
2451 | else | |
2452 | return digit; | |
bfb96cb7 | 2453 | } |
3883fbeb RS |
2454 | |
2455 | DEFUN ("string-to-number", Fstring_to_number, Sstring_to_number, 1, 2, 0, | |
558ee900 | 2456 | doc: /* Parse STRING as a decimal number and return the number. |
8c1a1077 PJ |
2457 | This parses both integers and floating point numbers. |
2458 | It ignores leading spaces and tabs. | |
2459 | ||
2460 | If BASE, interpret STRING as a number in that base. If BASE isn't | |
2461 | present, base 10 is used. BASE must be between 2 and 16 (inclusive). | |
2462 | If the base used is not 10, floating point is not recognized. */) | |
2463 | (string, base) | |
3883fbeb | 2464 | register Lisp_Object string, base; |
7921925c | 2465 | { |
3883fbeb | 2466 | register unsigned char *p; |
342858a5 GM |
2467 | register int b; |
2468 | int sign = 1; | |
2469 | Lisp_Object val; | |
25e40a4b | 2470 | |
b7826503 | 2471 | CHECK_STRING (string); |
7921925c | 2472 | |
3883fbeb RS |
2473 | if (NILP (base)) |
2474 | b = 10; | |
2475 | else | |
2476 | { | |
b7826503 | 2477 | CHECK_NUMBER (base); |
3883fbeb RS |
2478 | b = XINT (base); |
2479 | if (b < 2 || b > 16) | |
2480 | Fsignal (Qargs_out_of_range, Fcons (base, Qnil)); | |
2481 | } | |
2482 | ||
25e40a4b JB |
2483 | /* Skip any whitespace at the front of the number. Some versions of |
2484 | atoi do this anyway, so we might as well make Emacs lisp consistent. */ | |
d5db4077 | 2485 | p = SDATA (string); |
0a3e4d65 | 2486 | while (*p == ' ' || *p == '\t') |
25e40a4b JB |
2487 | p++; |
2488 | ||
3883fbeb RS |
2489 | if (*p == '-') |
2490 | { | |
342858a5 | 2491 | sign = -1; |
3883fbeb RS |
2492 | p++; |
2493 | } | |
2494 | else if (*p == '+') | |
2495 | p++; | |
bfb96cb7 | 2496 | |
8e36ae7f | 2497 | if (isfloat_string (p) && b == 10) |
342858a5 GM |
2498 | val = make_float (sign * atof (p)); |
2499 | else | |
3883fbeb | 2500 | { |
342858a5 GM |
2501 | double v = 0; |
2502 | ||
2503 | while (1) | |
2504 | { | |
2505 | int digit = digit_to_number (*p++, b); | |
2506 | if (digit < 0) | |
2507 | break; | |
2508 | v = v * b + digit; | |
2509 | } | |
2510 | ||
cb938d46 | 2511 | val = make_fixnum_or_float (sign * v); |
3883fbeb | 2512 | } |
342858a5 GM |
2513 | |
2514 | return val; | |
7921925c | 2515 | } |
3883fbeb | 2516 | |
7403b5c8 | 2517 | \f |
7921925c | 2518 | enum arithop |
7a283f36 GM |
2519 | { |
2520 | Aadd, | |
2521 | Asub, | |
2522 | Amult, | |
2523 | Adiv, | |
2524 | Alogand, | |
2525 | Alogior, | |
2526 | Alogxor, | |
2527 | Amax, | |
2528 | Amin | |
2529 | }; | |
2530 | ||
2531 | static Lisp_Object float_arith_driver P_ ((double, int, enum arithop, | |
2532 | int, Lisp_Object *)); | |
ad8d56b9 | 2533 | extern Lisp_Object fmod_float (); |
b06faa91 | 2534 | |
7921925c | 2535 | Lisp_Object |
87fbf902 | 2536 | arith_driver (code, nargs, args) |
7921925c JB |
2537 | enum arithop code; |
2538 | int nargs; | |
2539 | register Lisp_Object *args; | |
2540 | { | |
2541 | register Lisp_Object val; | |
2542 | register int argnum; | |
7a283f36 | 2543 | register EMACS_INT accum = 0; |
5260234d | 2544 | register EMACS_INT next; |
7921925c | 2545 | |
0220c518 | 2546 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2547 | { |
2548 | case Alogior: | |
2549 | case Alogxor: | |
2550 | case Aadd: | |
2551 | case Asub: | |
7a283f36 GM |
2552 | accum = 0; |
2553 | break; | |
7921925c | 2554 | case Amult: |
7a283f36 GM |
2555 | accum = 1; |
2556 | break; | |
7921925c | 2557 | case Alogand: |
7a283f36 GM |
2558 | accum = -1; |
2559 | break; | |
2560 | default: | |
2561 | break; | |
7921925c JB |
2562 | } |
2563 | ||
2564 | for (argnum = 0; argnum < nargs; argnum++) | |
2565 | { | |
7a283f36 GM |
2566 | /* Using args[argnum] as argument to CHECK_NUMBER_... */ |
2567 | val = args[argnum]; | |
b7826503 | 2568 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val); |
7921925c | 2569 | |
7a283f36 GM |
2570 | if (FLOATP (val)) |
2571 | return float_arith_driver ((double) accum, argnum, code, | |
2572 | nargs, args); | |
2573 | args[argnum] = val; | |
7921925c | 2574 | next = XINT (args[argnum]); |
0220c518 | 2575 | switch (SWITCH_ENUM_CAST (code)) |
7921925c | 2576 | { |
7a283f36 GM |
2577 | case Aadd: |
2578 | accum += next; | |
2579 | break; | |
7921925c | 2580 | case Asub: |
e64981da | 2581 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c | 2582 | break; |
7a283f36 GM |
2583 | case Amult: |
2584 | accum *= next; | |
2585 | break; | |
7921925c | 2586 | case Adiv: |
7a283f36 GM |
2587 | if (!argnum) |
2588 | accum = next; | |
87fbf902 RS |
2589 | else |
2590 | { | |
2591 | if (next == 0) | |
2592 | Fsignal (Qarith_error, Qnil); | |
2593 | accum /= next; | |
2594 | } | |
7921925c | 2595 | break; |
7a283f36 GM |
2596 | case Alogand: |
2597 | accum &= next; | |
2598 | break; | |
2599 | case Alogior: | |
2600 | accum |= next; | |
2601 | break; | |
2602 | case Alogxor: | |
2603 | accum ^= next; | |
2604 | break; | |
2605 | case Amax: | |
2606 | if (!argnum || next > accum) | |
2607 | accum = next; | |
2608 | break; | |
2609 | case Amin: | |
2610 | if (!argnum || next < accum) | |
2611 | accum = next; | |
2612 | break; | |
7921925c JB |
2613 | } |
2614 | } | |
2615 | ||
f187f1f7 | 2616 | XSETINT (val, accum); |
7921925c JB |
2617 | return val; |
2618 | } | |
2619 | ||
1a2f2d33 KH |
2620 | #undef isnan |
2621 | #define isnan(x) ((x) != (x)) | |
2622 | ||
7a283f36 | 2623 | static Lisp_Object |
7921925c JB |
2624 | float_arith_driver (accum, argnum, code, nargs, args) |
2625 | double accum; | |
2626 | register int argnum; | |
2627 | enum arithop code; | |
2628 | int nargs; | |
2629 | register Lisp_Object *args; | |
2630 | { | |
2631 | register Lisp_Object val; | |
2632 | double next; | |
7403b5c8 | 2633 | |
7921925c JB |
2634 | for (; argnum < nargs; argnum++) |
2635 | { | |
2636 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ | |
b7826503 | 2637 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val); |
7921925c | 2638 | |
e9ebc175 | 2639 | if (FLOATP (val)) |
7921925c | 2640 | { |
7539e11f | 2641 | next = XFLOAT_DATA (val); |
7921925c JB |
2642 | } |
2643 | else | |
2644 | { | |
2645 | args[argnum] = val; /* runs into a compiler bug. */ | |
2646 | next = XINT (args[argnum]); | |
2647 | } | |
0220c518 | 2648 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2649 | { |
2650 | case Aadd: | |
2651 | accum += next; | |
2652 | break; | |
2653 | case Asub: | |
e64981da | 2654 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c JB |
2655 | break; |
2656 | case Amult: | |
2657 | accum *= next; | |
2658 | break; | |
2659 | case Adiv: | |
2660 | if (!argnum) | |
2661 | accum = next; | |
2662 | else | |
87fbf902 | 2663 | { |
ad8d56b9 | 2664 | if (! IEEE_FLOATING_POINT && next == 0) |
87fbf902 RS |
2665 | Fsignal (Qarith_error, Qnil); |
2666 | accum /= next; | |
2667 | } | |
7921925c JB |
2668 | break; |
2669 | case Alogand: | |
2670 | case Alogior: | |
2671 | case Alogxor: | |
2672 | return wrong_type_argument (Qinteger_or_marker_p, val); | |
2673 | case Amax: | |
1a2f2d33 | 2674 | if (!argnum || isnan (next) || next > accum) |
7921925c JB |
2675 | accum = next; |
2676 | break; | |
2677 | case Amin: | |
1a2f2d33 | 2678 | if (!argnum || isnan (next) || next < accum) |
7921925c JB |
2679 | accum = next; |
2680 | break; | |
2681 | } | |
2682 | } | |
2683 | ||
2684 | return make_float (accum); | |
2685 | } | |
cc94f3b2 | 2686 | |
7921925c JB |
2687 | |
2688 | DEFUN ("+", Fplus, Splus, 0, MANY, 0, | |
8c1a1077 PJ |
2689 | doc: /* Return sum of any number of arguments, which are numbers or markers. |
2690 | usage: (+ &rest NUMBERS-OR-MARKERS) */) | |
2691 | (nargs, args) | |
7921925c JB |
2692 | int nargs; |
2693 | Lisp_Object *args; | |
2694 | { | |
2695 | return arith_driver (Aadd, nargs, args); | |
2696 | } | |
2697 | ||
2698 | DEFUN ("-", Fminus, Sminus, 0, MANY, 0, | |
558ee900 | 2699 | doc: /* Negate number or subtract numbers or markers and return the result. |
8c1a1077 | 2700 | With one arg, negates it. With more than one arg, |
f44fba9e | 2701 | subtracts all but the first from the first. |
8c1a1077 PJ |
2702 | usage: (- &optional NUMBER-OR-MARKER &rest MORE-NUMBERS-OR-MARKERS) */) |
2703 | (nargs, args) | |
7921925c JB |
2704 | int nargs; |
2705 | Lisp_Object *args; | |
2706 | { | |
2707 | return arith_driver (Asub, nargs, args); | |
2708 | } | |
2709 | ||
2710 | DEFUN ("*", Ftimes, Stimes, 0, MANY, 0, | |
be24eadf | 2711 | doc: /* Return product of any number of arguments, which are numbers or markers. |
8c1a1077 PJ |
2712 | usage: (* &rest NUMBERS-OR-MARKERS) */) |
2713 | (nargs, args) | |
7921925c JB |
2714 | int nargs; |
2715 | Lisp_Object *args; | |
2716 | { | |
2717 | return arith_driver (Amult, nargs, args); | |
2718 | } | |
2719 | ||
2720 | DEFUN ("/", Fquo, Squo, 2, MANY, 0, | |
be24eadf | 2721 | doc: /* Return first argument divided by all the remaining arguments. |
f44fba9e | 2722 | The arguments must be numbers or markers. |
8c1a1077 PJ |
2723 | usage: (/ DIVIDEND DIVISOR &rest DIVISORS) */) |
2724 | (nargs, args) | |
7921925c JB |
2725 | int nargs; |
2726 | Lisp_Object *args; | |
2727 | { | |
28712a21 | 2728 | int argnum; |
7ef98053 | 2729 | for (argnum = 2; argnum < nargs; argnum++) |
28712a21 JB |
2730 | if (FLOATP (args[argnum])) |
2731 | return float_arith_driver (0, 0, Adiv, nargs, args); | |
7921925c JB |
2732 | return arith_driver (Adiv, nargs, args); |
2733 | } | |
2734 | ||
2735 | DEFUN ("%", Frem, Srem, 2, 2, 0, | |
be24eadf | 2736 | doc: /* Return remainder of X divided by Y. |
8c1a1077 PJ |
2737 | Both must be integers or markers. */) |
2738 | (x, y) | |
d9c2a0f2 | 2739 | register Lisp_Object x, y; |
7921925c JB |
2740 | { |
2741 | Lisp_Object val; | |
2742 | ||
b7826503 PJ |
2743 | CHECK_NUMBER_COERCE_MARKER (x); |
2744 | CHECK_NUMBER_COERCE_MARKER (y); | |
7921925c | 2745 | |
d9c2a0f2 | 2746 | if (XFASTINT (y) == 0) |
87fbf902 RS |
2747 | Fsignal (Qarith_error, Qnil); |
2748 | ||
d9c2a0f2 | 2749 | XSETINT (val, XINT (x) % XINT (y)); |
7921925c JB |
2750 | return val; |
2751 | } | |
2752 | ||
1d66a5fa KH |
2753 | #ifndef HAVE_FMOD |
2754 | double | |
2755 | fmod (f1, f2) | |
2756 | double f1, f2; | |
2757 | { | |
bc1c9d7e PE |
2758 | double r = f1; |
2759 | ||
fa43b1e8 KH |
2760 | if (f2 < 0.0) |
2761 | f2 = -f2; | |
bc1c9d7e PE |
2762 | |
2763 | /* If the magnitude of the result exceeds that of the divisor, or | |
2764 | the sign of the result does not agree with that of the dividend, | |
2765 | iterate with the reduced value. This does not yield a | |
2766 | particularly accurate result, but at least it will be in the | |
2767 | range promised by fmod. */ | |
2768 | do | |
2769 | r -= f2 * floor (r / f2); | |
2770 | while (f2 <= (r < 0 ? -r : r) || ((r < 0) != (f1 < 0) && ! isnan (r))); | |
2771 | ||
2772 | return r; | |
1d66a5fa KH |
2773 | } |
2774 | #endif /* ! HAVE_FMOD */ | |
2775 | ||
44fa9da5 | 2776 | DEFUN ("mod", Fmod, Smod, 2, 2, 0, |
be24eadf | 2777 | doc: /* Return X modulo Y. |
8c1a1077 PJ |
2778 | The result falls between zero (inclusive) and Y (exclusive). |
2779 | Both X and Y must be numbers or markers. */) | |
2780 | (x, y) | |
d9c2a0f2 | 2781 | register Lisp_Object x, y; |
44fa9da5 PE |
2782 | { |
2783 | Lisp_Object val; | |
5260234d | 2784 | EMACS_INT i1, i2; |
44fa9da5 | 2785 | |
b7826503 PJ |
2786 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (x); |
2787 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (y); | |
44fa9da5 | 2788 | |
d9c2a0f2 | 2789 | if (FLOATP (x) || FLOATP (y)) |
ad8d56b9 PE |
2790 | return fmod_float (x, y); |
2791 | ||
d9c2a0f2 EN |
2792 | i1 = XINT (x); |
2793 | i2 = XINT (y); | |
44fa9da5 PE |
2794 | |
2795 | if (i2 == 0) | |
2796 | Fsignal (Qarith_error, Qnil); | |
7403b5c8 | 2797 | |
44fa9da5 PE |
2798 | i1 %= i2; |
2799 | ||
2800 | /* If the "remainder" comes out with the wrong sign, fix it. */ | |
04f7ec69 | 2801 | if (i2 < 0 ? i1 > 0 : i1 < 0) |
44fa9da5 PE |
2802 | i1 += i2; |
2803 | ||
f187f1f7 | 2804 | XSETINT (val, i1); |
44fa9da5 PE |
2805 | return val; |
2806 | } | |
2807 | ||
7921925c | 2808 | DEFUN ("max", Fmax, Smax, 1, MANY, 0, |
8c1a1077 | 2809 | doc: /* Return largest of all the arguments (which must be numbers or markers). |
f44fba9e | 2810 | The value is always a number; markers are converted to numbers. |
8c1a1077 PJ |
2811 | usage: (max NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
2812 | (nargs, args) | |
7921925c JB |
2813 | int nargs; |
2814 | Lisp_Object *args; | |
2815 | { | |
2816 | return arith_driver (Amax, nargs, args); | |
2817 | } | |
2818 | ||
2819 | DEFUN ("min", Fmin, Smin, 1, MANY, 0, | |
8c1a1077 | 2820 | doc: /* Return smallest of all the arguments (which must be numbers or markers). |
f44fba9e | 2821 | The value is always a number; markers are converted to numbers. |
8c1a1077 PJ |
2822 | usage: (min NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
2823 | (nargs, args) | |
7921925c JB |
2824 | int nargs; |
2825 | Lisp_Object *args; | |
2826 | { | |
2827 | return arith_driver (Amin, nargs, args); | |
2828 | } | |
2829 | ||
2830 | DEFUN ("logand", Flogand, Slogand, 0, MANY, 0, | |
8c1a1077 | 2831 | doc: /* Return bitwise-and of all the arguments. |
f44fba9e | 2832 | Arguments may be integers, or markers converted to integers. |
8c1a1077 PJ |
2833 | usage: (logand &rest INTS-OR-MARKERS) */) |
2834 | (nargs, args) | |
7921925c JB |
2835 | int nargs; |
2836 | Lisp_Object *args; | |
2837 | { | |
2838 | return arith_driver (Alogand, nargs, args); | |
2839 | } | |
2840 | ||
2841 | DEFUN ("logior", Flogior, Slogior, 0, MANY, 0, | |
8c1a1077 | 2842 | doc: /* Return bitwise-or of all the arguments. |
f44fba9e | 2843 | Arguments may be integers, or markers converted to integers. |
8c1a1077 PJ |
2844 | usage: (logior &rest INTS-OR-MARKERS) */) |
2845 | (nargs, args) | |
7921925c JB |
2846 | int nargs; |
2847 | Lisp_Object *args; | |
2848 | { | |
2849 | return arith_driver (Alogior, nargs, args); | |
2850 | } | |
2851 | ||
2852 | DEFUN ("logxor", Flogxor, Slogxor, 0, MANY, 0, | |
8c1a1077 | 2853 | doc: /* Return bitwise-exclusive-or of all the arguments. |
f44fba9e | 2854 | Arguments may be integers, or markers converted to integers. |
8c1a1077 PJ |
2855 | usage: (logxor &rest INTS-OR-MARKERS) */) |
2856 | (nargs, args) | |
7921925c JB |
2857 | int nargs; |
2858 | Lisp_Object *args; | |
2859 | { | |
2860 | return arith_driver (Alogxor, nargs, args); | |
2861 | } | |
2862 | ||
2863 | DEFUN ("ash", Fash, Sash, 2, 2, 0, | |
8c1a1077 PJ |
2864 | doc: /* Return VALUE with its bits shifted left by COUNT. |
2865 | If COUNT is negative, shifting is actually to the right. | |
2866 | In this case, the sign bit is duplicated. */) | |
2867 | (value, count) | |
3b9f7964 | 2868 | register Lisp_Object value, count; |
7921925c JB |
2869 | { |
2870 | register Lisp_Object val; | |
2871 | ||
b7826503 PJ |
2872 | CHECK_NUMBER (value); |
2873 | CHECK_NUMBER (count); | |
7921925c | 2874 | |
81d70626 RS |
2875 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2876 | XSETINT (val, 0); | |
2877 | else if (XINT (count) > 0) | |
3d9652eb | 2878 | XSETINT (val, XINT (value) << XFASTINT (count)); |
81d70626 RS |
2879 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2880 | XSETINT (val, XINT (value) < 0 ? -1 : 0); | |
7921925c | 2881 | else |
3d9652eb | 2882 | XSETINT (val, XINT (value) >> -XINT (count)); |
7921925c JB |
2883 | return val; |
2884 | } | |
2885 | ||
2886 | DEFUN ("lsh", Flsh, Slsh, 2, 2, 0, | |
8c1a1077 PJ |
2887 | doc: /* Return VALUE with its bits shifted left by COUNT. |
2888 | If COUNT is negative, shifting is actually to the right. | |
3a9b1297 | 2889 | In this case, zeros are shifted in on the left. */) |
8c1a1077 | 2890 | (value, count) |
3d9652eb | 2891 | register Lisp_Object value, count; |
7921925c JB |
2892 | { |
2893 | register Lisp_Object val; | |
2894 | ||
b7826503 PJ |
2895 | CHECK_NUMBER (value); |
2896 | CHECK_NUMBER (count); | |
7921925c | 2897 | |
81d70626 RS |
2898 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2899 | XSETINT (val, 0); | |
2900 | else if (XINT (count) > 0) | |
3d9652eb | 2901 | XSETINT (val, (EMACS_UINT) XUINT (value) << XFASTINT (count)); |
81d70626 RS |
2902 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2903 | XSETINT (val, 0); | |
7921925c | 2904 | else |
3d9652eb | 2905 | XSETINT (val, (EMACS_UINT) XUINT (value) >> -XINT (count)); |
7921925c JB |
2906 | return val; |
2907 | } | |
2908 | ||
2909 | DEFUN ("1+", Fadd1, Sadd1, 1, 1, 0, | |
8c1a1077 PJ |
2910 | doc: /* Return NUMBER plus one. NUMBER may be a number or a marker. |
2911 | Markers are converted to integers. */) | |
2912 | (number) | |
d9c2a0f2 | 2913 | register Lisp_Object number; |
7921925c | 2914 | { |
b7826503 | 2915 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number); |
7921925c | 2916 | |
d9c2a0f2 | 2917 | if (FLOATP (number)) |
7539e11f | 2918 | return (make_float (1.0 + XFLOAT_DATA (number))); |
7921925c | 2919 | |
d9c2a0f2 EN |
2920 | XSETINT (number, XINT (number) + 1); |
2921 | return number; | |
7921925c JB |
2922 | } |
2923 | ||
2924 | DEFUN ("1-", Fsub1, Ssub1, 1, 1, 0, | |
8c1a1077 PJ |
2925 | doc: /* Return NUMBER minus one. NUMBER may be a number or a marker. |
2926 | Markers are converted to integers. */) | |
2927 | (number) | |
d9c2a0f2 | 2928 | register Lisp_Object number; |
7921925c | 2929 | { |
b7826503 | 2930 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number); |
7921925c | 2931 | |
d9c2a0f2 | 2932 | if (FLOATP (number)) |
7539e11f | 2933 | return (make_float (-1.0 + XFLOAT_DATA (number))); |
7921925c | 2934 | |
d9c2a0f2 EN |
2935 | XSETINT (number, XINT (number) - 1); |
2936 | return number; | |
7921925c JB |
2937 | } |
2938 | ||
2939 | DEFUN ("lognot", Flognot, Slognot, 1, 1, 0, | |
8c1a1077 PJ |
2940 | doc: /* Return the bitwise complement of NUMBER. NUMBER must be an integer. */) |
2941 | (number) | |
d9c2a0f2 | 2942 | register Lisp_Object number; |
7921925c | 2943 | { |
b7826503 | 2944 | CHECK_NUMBER (number); |
53924017 | 2945 | XSETINT (number, ~XINT (number)); |
d9c2a0f2 | 2946 | return number; |
7921925c | 2947 | } |
d4be0d31 JD |
2948 | |
2949 | DEFUN ("byteorder", Fbyteorder, Sbyteorder, 0, 0, 0, | |
2950 | doc: /* Return the byteorder for the machine. | |
2951 | Returns 66 (ASCII uppercase B) for big endian machines or 108 (ASCII | |
2952 | lowercase l) for small endian machines. */) | |
2953 | () | |
2954 | { | |
2955 | unsigned i = 0x04030201; | |
7a8560d7 | 2956 | int order = *(char *)&i == 1 ? 108 : 66; |
d4be0d31 | 2957 | |
d2f14999 | 2958 | return make_number (order); |
d4be0d31 JD |
2959 | } |
2960 | ||
2961 | ||
7921925c JB |
2962 | \f |
2963 | void | |
2964 | syms_of_data () | |
2965 | { | |
6315e761 RS |
2966 | Lisp_Object error_tail, arith_tail; |
2967 | ||
7921925c JB |
2968 | Qquote = intern ("quote"); |
2969 | Qlambda = intern ("lambda"); | |
2970 | Qsubr = intern ("subr"); | |
2971 | Qerror_conditions = intern ("error-conditions"); | |
2972 | Qerror_message = intern ("error-message"); | |
2973 | Qtop_level = intern ("top-level"); | |
2974 | ||
2975 | Qerror = intern ("error"); | |
2976 | Qquit = intern ("quit"); | |
2977 | Qwrong_type_argument = intern ("wrong-type-argument"); | |
2978 | Qargs_out_of_range = intern ("args-out-of-range"); | |
2979 | Qvoid_function = intern ("void-function"); | |
ffd56f97 | 2980 | Qcyclic_function_indirection = intern ("cyclic-function-indirection"); |
f35d5bad | 2981 | Qcyclic_variable_indirection = intern ("cyclic-variable-indirection"); |
7921925c JB |
2982 | Qvoid_variable = intern ("void-variable"); |
2983 | Qsetting_constant = intern ("setting-constant"); | |
2984 | Qinvalid_read_syntax = intern ("invalid-read-syntax"); | |
2985 | ||
2986 | Qinvalid_function = intern ("invalid-function"); | |
2987 | Qwrong_number_of_arguments = intern ("wrong-number-of-arguments"); | |
2988 | Qno_catch = intern ("no-catch"); | |
2989 | Qend_of_file = intern ("end-of-file"); | |
2990 | Qarith_error = intern ("arith-error"); | |
2991 | Qbeginning_of_buffer = intern ("beginning-of-buffer"); | |
2992 | Qend_of_buffer = intern ("end-of-buffer"); | |
2993 | Qbuffer_read_only = intern ("buffer-read-only"); | |
8f9f49d7 | 2994 | Qtext_read_only = intern ("text-read-only"); |
3b8819d6 | 2995 | Qmark_inactive = intern ("mark-inactive"); |
7921925c JB |
2996 | |
2997 | Qlistp = intern ("listp"); | |
2998 | Qconsp = intern ("consp"); | |
2999 | Qsymbolp = intern ("symbolp"); | |
cda9b832 | 3000 | Qkeywordp = intern ("keywordp"); |
7921925c JB |
3001 | Qintegerp = intern ("integerp"); |
3002 | Qnatnump = intern ("natnump"); | |
8e86942b | 3003 | Qwholenump = intern ("wholenump"); |
7921925c JB |
3004 | Qstringp = intern ("stringp"); |
3005 | Qarrayp = intern ("arrayp"); | |
3006 | Qsequencep = intern ("sequencep"); | |
3007 | Qbufferp = intern ("bufferp"); | |
3008 | Qvectorp = intern ("vectorp"); | |
3009 | Qchar_or_string_p = intern ("char-or-string-p"); | |
3010 | Qmarkerp = intern ("markerp"); | |
07bd8472 | 3011 | Qbuffer_or_string_p = intern ("buffer-or-string-p"); |
7921925c JB |
3012 | Qinteger_or_marker_p = intern ("integer-or-marker-p"); |
3013 | Qboundp = intern ("boundp"); | |
3014 | Qfboundp = intern ("fboundp"); | |
3015 | ||
7921925c JB |
3016 | Qfloatp = intern ("floatp"); |
3017 | Qnumberp = intern ("numberp"); | |
3018 | Qnumber_or_marker_p = intern ("number-or-marker-p"); | |
7921925c | 3019 | |
4d276982 | 3020 | Qchar_table_p = intern ("char-table-p"); |
7f0edce7 | 3021 | Qvector_or_char_table_p = intern ("vector-or-char-table-p"); |
4d276982 | 3022 | |
6f0e897f DL |
3023 | Qsubrp = intern ("subrp"); |
3024 | Qunevalled = intern ("unevalled"); | |
3025 | Qmany = intern ("many"); | |
3026 | ||
7921925c JB |
3027 | Qcdr = intern ("cdr"); |
3028 | ||
f845f2c9 | 3029 | /* Handle automatic advice activation */ |
ab297811 | 3030 | Qad_advice_info = intern ("ad-advice-info"); |
c1307a23 | 3031 | Qad_activate_internal = intern ("ad-activate-internal"); |
f845f2c9 | 3032 | |
6315e761 RS |
3033 | error_tail = Fcons (Qerror, Qnil); |
3034 | ||
7921925c JB |
3035 | /* ERROR is used as a signaler for random errors for which nothing else is right */ |
3036 | ||
3037 | Fput (Qerror, Qerror_conditions, | |
6315e761 | 3038 | error_tail); |
7921925c JB |
3039 | Fput (Qerror, Qerror_message, |
3040 | build_string ("error")); | |
3041 | ||
3042 | Fput (Qquit, Qerror_conditions, | |
3043 | Fcons (Qquit, Qnil)); | |
3044 | Fput (Qquit, Qerror_message, | |
3045 | build_string ("Quit")); | |
3046 | ||
3047 | Fput (Qwrong_type_argument, Qerror_conditions, | |
6315e761 | 3048 | Fcons (Qwrong_type_argument, error_tail)); |
7921925c JB |
3049 | Fput (Qwrong_type_argument, Qerror_message, |
3050 | build_string ("Wrong type argument")); | |
3051 | ||
3052 | Fput (Qargs_out_of_range, Qerror_conditions, | |
6315e761 | 3053 | Fcons (Qargs_out_of_range, error_tail)); |
7921925c JB |
3054 | Fput (Qargs_out_of_range, Qerror_message, |
3055 | build_string ("Args out of range")); | |
3056 | ||
3057 | Fput (Qvoid_function, Qerror_conditions, | |
6315e761 | 3058 | Fcons (Qvoid_function, error_tail)); |
7921925c JB |
3059 | Fput (Qvoid_function, Qerror_message, |
3060 | build_string ("Symbol's function definition is void")); | |
3061 | ||
ffd56f97 | 3062 | Fput (Qcyclic_function_indirection, Qerror_conditions, |
6315e761 | 3063 | Fcons (Qcyclic_function_indirection, error_tail)); |
ffd56f97 JB |
3064 | Fput (Qcyclic_function_indirection, Qerror_message, |
3065 | build_string ("Symbol's chain of function indirections contains a loop")); | |
3066 | ||
f35d5bad GM |
3067 | Fput (Qcyclic_variable_indirection, Qerror_conditions, |
3068 | Fcons (Qcyclic_variable_indirection, error_tail)); | |
3069 | Fput (Qcyclic_variable_indirection, Qerror_message, | |
3070 | build_string ("Symbol's chain of variable indirections contains a loop")); | |
3071 | ||
13d95cc0 GM |
3072 | Qcircular_list = intern ("circular-list"); |
3073 | staticpro (&Qcircular_list); | |
3074 | Fput (Qcircular_list, Qerror_conditions, | |
3075 | Fcons (Qcircular_list, error_tail)); | |
3076 | Fput (Qcircular_list, Qerror_message, | |
3077 | build_string ("List contains a loop")); | |
3078 | ||
7921925c | 3079 | Fput (Qvoid_variable, Qerror_conditions, |
6315e761 | 3080 | Fcons (Qvoid_variable, error_tail)); |
7921925c JB |
3081 | Fput (Qvoid_variable, Qerror_message, |
3082 | build_string ("Symbol's value as variable is void")); | |
3083 | ||
3084 | Fput (Qsetting_constant, Qerror_conditions, | |
6315e761 | 3085 | Fcons (Qsetting_constant, error_tail)); |
7921925c JB |
3086 | Fput (Qsetting_constant, Qerror_message, |
3087 | build_string ("Attempt to set a constant symbol")); | |
3088 | ||
3089 | Fput (Qinvalid_read_syntax, Qerror_conditions, | |
6315e761 | 3090 | Fcons (Qinvalid_read_syntax, error_tail)); |
7921925c JB |
3091 | Fput (Qinvalid_read_syntax, Qerror_message, |
3092 | build_string ("Invalid read syntax")); | |
3093 | ||
3094 | Fput (Qinvalid_function, Qerror_conditions, | |
6315e761 | 3095 | Fcons (Qinvalid_function, error_tail)); |
7921925c JB |
3096 | Fput (Qinvalid_function, Qerror_message, |
3097 | build_string ("Invalid function")); | |
3098 | ||
3099 | Fput (Qwrong_number_of_arguments, Qerror_conditions, | |
6315e761 | 3100 | Fcons (Qwrong_number_of_arguments, error_tail)); |
7921925c JB |
3101 | Fput (Qwrong_number_of_arguments, Qerror_message, |
3102 | build_string ("Wrong number of arguments")); | |
3103 | ||
3104 | Fput (Qno_catch, Qerror_conditions, | |
6315e761 | 3105 | Fcons (Qno_catch, error_tail)); |
7921925c JB |
3106 | Fput (Qno_catch, Qerror_message, |
3107 | build_string ("No catch for tag")); | |
3108 | ||
3109 | Fput (Qend_of_file, Qerror_conditions, | |
6315e761 | 3110 | Fcons (Qend_of_file, error_tail)); |
7921925c JB |
3111 | Fput (Qend_of_file, Qerror_message, |
3112 | build_string ("End of file during parsing")); | |
3113 | ||
6315e761 | 3114 | arith_tail = Fcons (Qarith_error, error_tail); |
7921925c | 3115 | Fput (Qarith_error, Qerror_conditions, |
6315e761 | 3116 | arith_tail); |
7921925c JB |
3117 | Fput (Qarith_error, Qerror_message, |
3118 | build_string ("Arithmetic error")); | |
3119 | ||
3120 | Fput (Qbeginning_of_buffer, Qerror_conditions, | |
6315e761 | 3121 | Fcons (Qbeginning_of_buffer, error_tail)); |
7921925c JB |
3122 | Fput (Qbeginning_of_buffer, Qerror_message, |
3123 | build_string ("Beginning of buffer")); | |
3124 | ||
3125 | Fput (Qend_of_buffer, Qerror_conditions, | |
6315e761 | 3126 | Fcons (Qend_of_buffer, error_tail)); |
7921925c JB |
3127 | Fput (Qend_of_buffer, Qerror_message, |
3128 | build_string ("End of buffer")); | |
3129 | ||
3130 | Fput (Qbuffer_read_only, Qerror_conditions, | |
6315e761 | 3131 | Fcons (Qbuffer_read_only, error_tail)); |
7921925c JB |
3132 | Fput (Qbuffer_read_only, Qerror_message, |
3133 | build_string ("Buffer is read-only")); | |
3134 | ||
8f9f49d7 GM |
3135 | Fput (Qtext_read_only, Qerror_conditions, |
3136 | Fcons (Qtext_read_only, error_tail)); | |
3137 | Fput (Qtext_read_only, Qerror_message, | |
3138 | build_string ("Text is read-only")); | |
3139 | ||
6315e761 RS |
3140 | Qrange_error = intern ("range-error"); |
3141 | Qdomain_error = intern ("domain-error"); | |
3142 | Qsingularity_error = intern ("singularity-error"); | |
3143 | Qoverflow_error = intern ("overflow-error"); | |
3144 | Qunderflow_error = intern ("underflow-error"); | |
3145 | ||
3146 | Fput (Qdomain_error, Qerror_conditions, | |
3147 | Fcons (Qdomain_error, arith_tail)); | |
3148 | Fput (Qdomain_error, Qerror_message, | |
3149 | build_string ("Arithmetic domain error")); | |
3150 | ||
3151 | Fput (Qrange_error, Qerror_conditions, | |
3152 | Fcons (Qrange_error, arith_tail)); | |
3153 | Fput (Qrange_error, Qerror_message, | |
3154 | build_string ("Arithmetic range error")); | |
3155 | ||
3156 | Fput (Qsingularity_error, Qerror_conditions, | |
3157 | Fcons (Qsingularity_error, Fcons (Qdomain_error, arith_tail))); | |
3158 | Fput (Qsingularity_error, Qerror_message, | |
3159 | build_string ("Arithmetic singularity error")); | |
3160 | ||
3161 | Fput (Qoverflow_error, Qerror_conditions, | |
3162 | Fcons (Qoverflow_error, Fcons (Qdomain_error, arith_tail))); | |
3163 | Fput (Qoverflow_error, Qerror_message, | |
3164 | build_string ("Arithmetic overflow error")); | |
3165 | ||
3166 | Fput (Qunderflow_error, Qerror_conditions, | |
3167 | Fcons (Qunderflow_error, Fcons (Qdomain_error, arith_tail))); | |
3168 | Fput (Qunderflow_error, Qerror_message, | |
3169 | build_string ("Arithmetic underflow error")); | |
3170 | ||
3171 | staticpro (&Qrange_error); | |
3172 | staticpro (&Qdomain_error); | |
3173 | staticpro (&Qsingularity_error); | |
3174 | staticpro (&Qoverflow_error); | |
3175 | staticpro (&Qunderflow_error); | |
6315e761 | 3176 | |
7921925c JB |
3177 | staticpro (&Qnil); |
3178 | staticpro (&Qt); | |
3179 | staticpro (&Qquote); | |
3180 | staticpro (&Qlambda); | |
3181 | staticpro (&Qsubr); | |
3182 | staticpro (&Qunbound); | |
3183 | staticpro (&Qerror_conditions); | |
3184 | staticpro (&Qerror_message); | |
3185 | staticpro (&Qtop_level); | |
3186 | ||
3187 | staticpro (&Qerror); | |
3188 | staticpro (&Qquit); | |
3189 | staticpro (&Qwrong_type_argument); | |
3190 | staticpro (&Qargs_out_of_range); | |
3191 | staticpro (&Qvoid_function); | |
ffd56f97 | 3192 | staticpro (&Qcyclic_function_indirection); |
dfad0b34 | 3193 | staticpro (&Qcyclic_variable_indirection); |
7921925c JB |
3194 | staticpro (&Qvoid_variable); |
3195 | staticpro (&Qsetting_constant); | |
3196 | staticpro (&Qinvalid_read_syntax); | |
3197 | staticpro (&Qwrong_number_of_arguments); | |
3198 | staticpro (&Qinvalid_function); | |
3199 | staticpro (&Qno_catch); | |
3200 | staticpro (&Qend_of_file); | |
3201 | staticpro (&Qarith_error); | |
3202 | staticpro (&Qbeginning_of_buffer); | |
3203 | staticpro (&Qend_of_buffer); | |
3204 | staticpro (&Qbuffer_read_only); | |
8f9f49d7 | 3205 | staticpro (&Qtext_read_only); |
638b77e6 | 3206 | staticpro (&Qmark_inactive); |
7921925c JB |
3207 | |
3208 | staticpro (&Qlistp); | |
3209 | staticpro (&Qconsp); | |
3210 | staticpro (&Qsymbolp); | |
cda9b832 | 3211 | staticpro (&Qkeywordp); |
7921925c JB |
3212 | staticpro (&Qintegerp); |
3213 | staticpro (&Qnatnump); | |
8e86942b | 3214 | staticpro (&Qwholenump); |
7921925c JB |
3215 | staticpro (&Qstringp); |
3216 | staticpro (&Qarrayp); | |
3217 | staticpro (&Qsequencep); | |
3218 | staticpro (&Qbufferp); | |
3219 | staticpro (&Qvectorp); | |
3220 | staticpro (&Qchar_or_string_p); | |
3221 | staticpro (&Qmarkerp); | |
07bd8472 | 3222 | staticpro (&Qbuffer_or_string_p); |
7921925c | 3223 | staticpro (&Qinteger_or_marker_p); |
7921925c | 3224 | staticpro (&Qfloatp); |
464f8898 RS |
3225 | staticpro (&Qnumberp); |
3226 | staticpro (&Qnumber_or_marker_p); | |
4d276982 | 3227 | staticpro (&Qchar_table_p); |
7f0edce7 | 3228 | staticpro (&Qvector_or_char_table_p); |
6f0e897f DL |
3229 | staticpro (&Qsubrp); |
3230 | staticpro (&Qmany); | |
3231 | staticpro (&Qunevalled); | |
7921925c JB |
3232 | |
3233 | staticpro (&Qboundp); | |
3234 | staticpro (&Qfboundp); | |
3235 | staticpro (&Qcdr); | |
ab297811 | 3236 | staticpro (&Qad_advice_info); |
c1307a23 | 3237 | staticpro (&Qad_activate_internal); |
7921925c | 3238 | |
39bcc759 RS |
3239 | /* Types that type-of returns. */ |
3240 | Qinteger = intern ("integer"); | |
3241 | Qsymbol = intern ("symbol"); | |
3242 | Qstring = intern ("string"); | |
3243 | Qcons = intern ("cons"); | |
3244 | Qmarker = intern ("marker"); | |
3245 | Qoverlay = intern ("overlay"); | |
3246 | Qfloat = intern ("float"); | |
3247 | Qwindow_configuration = intern ("window-configuration"); | |
3248 | Qprocess = intern ("process"); | |
3249 | Qwindow = intern ("window"); | |
3250 | /* Qsubr = intern ("subr"); */ | |
3251 | Qcompiled_function = intern ("compiled-function"); | |
3252 | Qbuffer = intern ("buffer"); | |
3253 | Qframe = intern ("frame"); | |
3254 | Qvector = intern ("vector"); | |
fc67d5be KH |
3255 | Qchar_table = intern ("char-table"); |
3256 | Qbool_vector = intern ("bool-vector"); | |
81dc5de5 | 3257 | Qhash_table = intern ("hash-table"); |
39bcc759 RS |
3258 | |
3259 | staticpro (&Qinteger); | |
3260 | staticpro (&Qsymbol); | |
3261 | staticpro (&Qstring); | |
3262 | staticpro (&Qcons); | |
3263 | staticpro (&Qmarker); | |
3264 | staticpro (&Qoverlay); | |
3265 | staticpro (&Qfloat); | |
3266 | staticpro (&Qwindow_configuration); | |
3267 | staticpro (&Qprocess); | |
3268 | staticpro (&Qwindow); | |
3269 | /* staticpro (&Qsubr); */ | |
3270 | staticpro (&Qcompiled_function); | |
3271 | staticpro (&Qbuffer); | |
3272 | staticpro (&Qframe); | |
3273 | staticpro (&Qvector); | |
fc67d5be KH |
3274 | staticpro (&Qchar_table); |
3275 | staticpro (&Qbool_vector); | |
81dc5de5 | 3276 | staticpro (&Qhash_table); |
39bcc759 | 3277 | |
f35d5bad | 3278 | defsubr (&Sindirect_variable); |
f52a3ca3 | 3279 | defsubr (&Sinteractive_form); |
7921925c JB |
3280 | defsubr (&Seq); |
3281 | defsubr (&Snull); | |
39bcc759 | 3282 | defsubr (&Stype_of); |
7921925c JB |
3283 | defsubr (&Slistp); |
3284 | defsubr (&Snlistp); | |
3285 | defsubr (&Sconsp); | |
3286 | defsubr (&Satom); | |
3287 | defsubr (&Sintegerp); | |
464f8898 | 3288 | defsubr (&Sinteger_or_marker_p); |
7921925c JB |
3289 | defsubr (&Snumberp); |
3290 | defsubr (&Snumber_or_marker_p); | |
464f8898 | 3291 | defsubr (&Sfloatp); |
7921925c JB |
3292 | defsubr (&Snatnump); |
3293 | defsubr (&Ssymbolp); | |
cda9b832 | 3294 | defsubr (&Skeywordp); |
7921925c | 3295 | defsubr (&Sstringp); |
0f56470d | 3296 | defsubr (&Smultibyte_string_p); |
7921925c | 3297 | defsubr (&Svectorp); |
4d276982 | 3298 | defsubr (&Schar_table_p); |
7f0edce7 | 3299 | defsubr (&Svector_or_char_table_p); |
4d276982 | 3300 | defsubr (&Sbool_vector_p); |
7921925c JB |
3301 | defsubr (&Sarrayp); |
3302 | defsubr (&Ssequencep); | |
3303 | defsubr (&Sbufferp); | |
3304 | defsubr (&Smarkerp); | |
7921925c | 3305 | defsubr (&Ssubrp); |
dbc4e1c1 | 3306 | defsubr (&Sbyte_code_function_p); |
7921925c JB |
3307 | defsubr (&Schar_or_string_p); |
3308 | defsubr (&Scar); | |
3309 | defsubr (&Scdr); | |
3310 | defsubr (&Scar_safe); | |
3311 | defsubr (&Scdr_safe); | |
3312 | defsubr (&Ssetcar); | |
3313 | defsubr (&Ssetcdr); | |
3314 | defsubr (&Ssymbol_function); | |
ffd56f97 | 3315 | defsubr (&Sindirect_function); |
7921925c JB |
3316 | defsubr (&Ssymbol_plist); |
3317 | defsubr (&Ssymbol_name); | |
3318 | defsubr (&Smakunbound); | |
3319 | defsubr (&Sfmakunbound); | |
3320 | defsubr (&Sboundp); | |
3321 | defsubr (&Sfboundp); | |
3322 | defsubr (&Sfset); | |
80df38a2 | 3323 | defsubr (&Sdefalias); |
7921925c JB |
3324 | defsubr (&Ssetplist); |
3325 | defsubr (&Ssymbol_value); | |
3326 | defsubr (&Sset); | |
3327 | defsubr (&Sdefault_boundp); | |
3328 | defsubr (&Sdefault_value); | |
3329 | defsubr (&Sset_default); | |
3330 | defsubr (&Ssetq_default); | |
3331 | defsubr (&Smake_variable_buffer_local); | |
3332 | defsubr (&Smake_local_variable); | |
3333 | defsubr (&Skill_local_variable); | |
b0c2d1c6 | 3334 | defsubr (&Smake_variable_frame_local); |
62476adc | 3335 | defsubr (&Slocal_variable_p); |
f4f04cee | 3336 | defsubr (&Slocal_variable_if_set_p); |
0a2546d4 | 3337 | defsubr (&Svariable_binding_locus); |
7921925c JB |
3338 | defsubr (&Saref); |
3339 | defsubr (&Saset); | |
f2980264 | 3340 | defsubr (&Snumber_to_string); |
25e40a4b | 3341 | defsubr (&Sstring_to_number); |
7921925c JB |
3342 | defsubr (&Seqlsign); |
3343 | defsubr (&Slss); | |
3344 | defsubr (&Sgtr); | |
3345 | defsubr (&Sleq); | |
3346 | defsubr (&Sgeq); | |
3347 | defsubr (&Sneq); | |
3348 | defsubr (&Szerop); | |
3349 | defsubr (&Splus); | |
3350 | defsubr (&Sminus); | |
3351 | defsubr (&Stimes); | |
3352 | defsubr (&Squo); | |
3353 | defsubr (&Srem); | |
44fa9da5 | 3354 | defsubr (&Smod); |
7921925c JB |
3355 | defsubr (&Smax); |
3356 | defsubr (&Smin); | |
3357 | defsubr (&Slogand); | |
3358 | defsubr (&Slogior); | |
3359 | defsubr (&Slogxor); | |
3360 | defsubr (&Slsh); | |
3361 | defsubr (&Sash); | |
3362 | defsubr (&Sadd1); | |
3363 | defsubr (&Ssub1); | |
3364 | defsubr (&Slognot); | |
d4be0d31 | 3365 | defsubr (&Sbyteorder); |
6f0e897f | 3366 | defsubr (&Ssubr_arity); |
0fddae66 | 3367 | defsubr (&Ssubr_name); |
8e86942b | 3368 | |
c80bd143 | 3369 | XSYMBOL (Qwholenump)->function = XSYMBOL (Qnatnump)->function; |
e6190b11 | 3370 | |
9d113d9d AS |
3371 | DEFVAR_LISP ("most-positive-fixnum", &Vmost_positive_fixnum, |
3372 | doc: /* The largest value that is representable in a Lisp integer. */); | |
3373 | Vmost_positive_fixnum = make_number (MOST_POSITIVE_FIXNUM); | |
bfb96cb7 | 3374 | |
9d113d9d AS |
3375 | DEFVAR_LISP ("most-negative-fixnum", &Vmost_negative_fixnum, |
3376 | doc: /* The smallest value that is representable in a Lisp integer. */); | |
3377 | Vmost_negative_fixnum = make_number (MOST_NEGATIVE_FIXNUM); | |
7921925c JB |
3378 | } |
3379 | ||
a33ef3ab | 3380 | SIGTYPE |
7921925c JB |
3381 | arith_error (signo) |
3382 | int signo; | |
3383 | { | |
fe42a920 | 3384 | #if defined(USG) && !defined(POSIX_SIGNALS) |
7921925c JB |
3385 | /* USG systems forget handlers when they are used; |
3386 | must reestablish each time */ | |
3387 | signal (signo, arith_error); | |
3388 | #endif /* USG */ | |
3389 | #ifdef VMS | |
3390 | /* VMS systems are like USG. */ | |
3391 | signal (signo, arith_error); | |
3392 | #endif /* VMS */ | |
3393 | #ifdef BSD4_1 | |
3394 | sigrelse (SIGFPE); | |
3395 | #else /* not BSD4_1 */ | |
e065a56e | 3396 | sigsetmask (SIGEMPTYMASK); |
7921925c JB |
3397 | #endif /* not BSD4_1 */ |
3398 | ||
333f1b6f | 3399 | SIGNAL_THREAD_CHECK (signo); |
7921925c JB |
3400 | Fsignal (Qarith_error, Qnil); |
3401 | } | |
3402 | ||
dfcf069d | 3403 | void |
7921925c JB |
3404 | init_data () |
3405 | { | |
3406 | /* Don't do this if just dumping out. | |
3407 | We don't want to call `signal' in this case | |
3408 | so that we don't have trouble with dumping | |
3409 | signal-delivering routines in an inconsistent state. */ | |
3410 | #ifndef CANNOT_DUMP | |
3411 | if (!initialized) | |
3412 | return; | |
3413 | #endif /* CANNOT_DUMP */ | |
3414 | signal (SIGFPE, arith_error); | |
7403b5c8 | 3415 | |
7921925c JB |
3416 | #ifdef uts |
3417 | signal (SIGEMT, arith_error); | |
3418 | #endif /* uts */ | |
3419 | } | |
ab5796a9 MB |
3420 | |
3421 | /* arch-tag: 25879798-b84d-479a-9c89-7d148e2109f7 | |
3422 | (do not change this comment) */ |