Commit | Line | Data |
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7921925c | 1 | /* Primitive operations on Lisp data types for GNU Emacs Lisp interpreter. |
0b5538bd | 2 | Copyright (C) 1985, 1986, 1988, 1993, 1994, 1995, 1997, 1998, 1999, 2000, |
4e6835db | 3 | 2001, 2002, 2003, 2004, 2005, 2006, 2007 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" |
256c9c3a | 33 | #include "termhooks.h" /* For FRAME_KBOARD reference in y-or-n-p. */ |
fb8e9847 | 34 | |
93b91208 | 35 | #ifdef STDC_HEADERS |
2f261542 | 36 | #include <float.h> |
93b91208 | 37 | #endif |
defa77b5 | 38 | |
ad8d56b9 PE |
39 | /* If IEEE_FLOATING_POINT isn't defined, default it from FLT_*. */ |
40 | #ifndef IEEE_FLOATING_POINT | |
41 | #if (FLT_RADIX == 2 && FLT_MANT_DIG == 24 \ | |
42 | && FLT_MIN_EXP == -125 && FLT_MAX_EXP == 128) | |
43 | #define IEEE_FLOATING_POINT 1 | |
44 | #else | |
45 | #define IEEE_FLOATING_POINT 0 | |
46 | #endif | |
47 | #endif | |
48 | ||
defa77b5 RS |
49 | /* Work around a problem that happens because math.h on hpux 7 |
50 | defines two static variables--which, in Emacs, are not really static, | |
51 | because `static' is defined as nothing. The problem is that they are | |
52 | here, in floatfns.c, and in lread.c. | |
53 | These macros prevent the name conflict. */ | |
54 | #if defined (HPUX) && !defined (HPUX8) | |
55 | #define _MAXLDBL data_c_maxldbl | |
56 | #define _NMAXLDBL data_c_nmaxldbl | |
57 | #endif | |
58 | ||
7921925c | 59 | #include <math.h> |
7921925c | 60 | |
024ec58f BF |
61 | #if !defined (atof) |
62 | extern double atof (); | |
63 | #endif /* !atof */ | |
64 | ||
7921925c JB |
65 | Lisp_Object Qnil, Qt, Qquote, Qlambda, Qsubr, Qunbound; |
66 | Lisp_Object Qerror_conditions, Qerror_message, Qtop_level; | |
67 | Lisp_Object Qerror, Qquit, Qwrong_type_argument, Qargs_out_of_range; | |
ffd56f97 | 68 | Lisp_Object Qvoid_variable, Qvoid_function, Qcyclic_function_indirection; |
13d95cc0 | 69 | Lisp_Object Qcyclic_variable_indirection, Qcircular_list; |
7921925c JB |
70 | Lisp_Object Qsetting_constant, Qinvalid_read_syntax; |
71 | Lisp_Object Qinvalid_function, Qwrong_number_of_arguments, Qno_catch; | |
3b8819d6 | 72 | Lisp_Object Qend_of_file, Qarith_error, Qmark_inactive; |
7921925c | 73 | Lisp_Object Qbeginning_of_buffer, Qend_of_buffer, Qbuffer_read_only; |
8f9f49d7 | 74 | Lisp_Object Qtext_read_only; |
aae13d36 | 75 | |
8e86942b | 76 | Lisp_Object Qintegerp, Qnatnump, Qwholenump, Qsymbolp, Qlistp, Qconsp; |
7921925c JB |
77 | Lisp_Object Qstringp, Qarrayp, Qsequencep, Qbufferp; |
78 | Lisp_Object Qchar_or_string_p, Qmarkerp, Qinteger_or_marker_p, Qvectorp; | |
cda9b832 | 79 | Lisp_Object Qbuffer_or_string_p, Qkeywordp; |
7921925c | 80 | Lisp_Object Qboundp, Qfboundp; |
7f0edce7 | 81 | Lisp_Object Qchar_table_p, Qvector_or_char_table_p; |
39bcc759 | 82 | |
7921925c | 83 | Lisp_Object Qcdr; |
c1307a23 | 84 | Lisp_Object Qad_advice_info, Qad_activate_internal; |
7921925c | 85 | |
6315e761 RS |
86 | Lisp_Object Qrange_error, Qdomain_error, Qsingularity_error; |
87 | Lisp_Object Qoverflow_error, Qunderflow_error; | |
88 | ||
464f8898 | 89 | Lisp_Object Qfloatp; |
7921925c | 90 | Lisp_Object Qnumberp, Qnumber_or_marker_p; |
7921925c | 91 | |
aae13d36 LH |
92 | Lisp_Object Qinteger; |
93 | static Lisp_Object Qsymbol, Qstring, Qcons, Qmarker, Qoverlay; | |
8313c4e7 KH |
94 | static Lisp_Object Qfloat, Qwindow_configuration, Qwindow; |
95 | Lisp_Object Qprocess; | |
39bcc759 | 96 | static Lisp_Object Qcompiled_function, Qbuffer, Qframe, Qvector; |
81dc5de5 | 97 | static Lisp_Object Qchar_table, Qbool_vector, Qhash_table; |
6f0e897f | 98 | static Lisp_Object Qsubrp, Qmany, Qunevalled; |
39bcc759 | 99 | |
7a283f36 | 100 | static Lisp_Object swap_in_symval_forwarding P_ ((Lisp_Object, Lisp_Object)); |
d02eeab3 | 101 | |
9d113d9d | 102 | Lisp_Object Vmost_positive_fixnum, Vmost_negative_fixnum; |
e6190b11 | 103 | |
13d95cc0 GM |
104 | |
105 | void | |
106 | circular_list_error (list) | |
107 | Lisp_Object list; | |
108 | { | |
740ef0b5 | 109 | xsignal (Qcircular_list, list); |
13d95cc0 GM |
110 | } |
111 | ||
112 | ||
7921925c JB |
113 | Lisp_Object |
114 | wrong_type_argument (predicate, value) | |
115 | register Lisp_Object predicate, value; | |
116 | { | |
0c64a8cd KS |
117 | /* If VALUE is not even a valid Lisp object, abort here |
118 | where we can get a backtrace showing where it came from. */ | |
119 | if ((unsigned int) XGCTYPE (value) >= Lisp_Type_Limit) | |
120 | abort (); | |
121 | ||
740ef0b5 | 122 | xsignal2 (Qwrong_type_argument, predicate, value); |
7921925c JB |
123 | } |
124 | ||
dfcf069d | 125 | void |
7921925c JB |
126 | pure_write_error () |
127 | { | |
128 | error ("Attempt to modify read-only object"); | |
129 | } | |
130 | ||
131 | void | |
132 | args_out_of_range (a1, a2) | |
133 | Lisp_Object a1, a2; | |
134 | { | |
740ef0b5 | 135 | xsignal2 (Qargs_out_of_range, a1, a2); |
7921925c JB |
136 | } |
137 | ||
138 | void | |
139 | args_out_of_range_3 (a1, a2, a3) | |
140 | Lisp_Object a1, a2, a3; | |
141 | { | |
740ef0b5 | 142 | xsignal3 (Qargs_out_of_range, a1, a2, a3); |
7921925c JB |
143 | } |
144 | ||
7921925c JB |
145 | /* On some machines, XINT needs a temporary location. |
146 | Here it is, in case it is needed. */ | |
147 | ||
148 | int sign_extend_temp; | |
149 | ||
150 | /* On a few machines, XINT can only be done by calling this. */ | |
151 | ||
152 | int | |
153 | sign_extend_lisp_int (num) | |
a0ed95ea | 154 | EMACS_INT num; |
7921925c | 155 | { |
a0ed95ea RS |
156 | if (num & (((EMACS_INT) 1) << (VALBITS - 1))) |
157 | return num | (((EMACS_INT) (-1)) << VALBITS); | |
7921925c | 158 | else |
a0ed95ea | 159 | return num & ((((EMACS_INT) 1) << VALBITS) - 1); |
7921925c JB |
160 | } |
161 | \f | |
162 | /* Data type predicates */ | |
163 | ||
164 | DEFUN ("eq", Feq, Seq, 2, 2, 0, | |
8c1a1077 PJ |
165 | doc: /* Return t if the two args are the same Lisp object. */) |
166 | (obj1, obj2) | |
7921925c JB |
167 | Lisp_Object obj1, obj2; |
168 | { | |
169 | if (EQ (obj1, obj2)) | |
170 | return Qt; | |
171 | return Qnil; | |
172 | } | |
173 | ||
8c1a1077 PJ |
174 | DEFUN ("null", Fnull, Snull, 1, 1, 0, |
175 | doc: /* Return t if OBJECT is nil. */) | |
176 | (object) | |
39bcc759 | 177 | Lisp_Object object; |
7921925c | 178 | { |
39bcc759 | 179 | if (NILP (object)) |
7921925c JB |
180 | return Qt; |
181 | return Qnil; | |
182 | } | |
183 | ||
39bcc759 | 184 | DEFUN ("type-of", Ftype_of, Stype_of, 1, 1, 0, |
8c1a1077 PJ |
185 | doc: /* Return a symbol representing the type of OBJECT. |
186 | The symbol returned names the object's basic type; | |
187 | for example, (type-of 1) returns `integer'. */) | |
188 | (object) | |
39bcc759 RS |
189 | Lisp_Object object; |
190 | { | |
191 | switch (XGCTYPE (object)) | |
192 | { | |
193 | case Lisp_Int: | |
194 | return Qinteger; | |
195 | ||
196 | case Lisp_Symbol: | |
197 | return Qsymbol; | |
198 | ||
199 | case Lisp_String: | |
200 | return Qstring; | |
201 | ||
202 | case Lisp_Cons: | |
203 | return Qcons; | |
204 | ||
205 | case Lisp_Misc: | |
324a6eef | 206 | switch (XMISCTYPE (object)) |
39bcc759 RS |
207 | { |
208 | case Lisp_Misc_Marker: | |
209 | return Qmarker; | |
210 | case Lisp_Misc_Overlay: | |
211 | return Qoverlay; | |
212 | case Lisp_Misc_Float: | |
213 | return Qfloat; | |
214 | } | |
215 | abort (); | |
216 | ||
217 | case Lisp_Vectorlike: | |
218 | if (GC_WINDOW_CONFIGURATIONP (object)) | |
219 | return Qwindow_configuration; | |
220 | if (GC_PROCESSP (object)) | |
221 | return Qprocess; | |
222 | if (GC_WINDOWP (object)) | |
223 | return Qwindow; | |
224 | if (GC_SUBRP (object)) | |
225 | return Qsubr; | |
226 | if (GC_COMPILEDP (object)) | |
227 | return Qcompiled_function; | |
228 | if (GC_BUFFERP (object)) | |
229 | return Qbuffer; | |
fc67d5be KH |
230 | if (GC_CHAR_TABLE_P (object)) |
231 | return Qchar_table; | |
232 | if (GC_BOOL_VECTOR_P (object)) | |
233 | return Qbool_vector; | |
39bcc759 RS |
234 | if (GC_FRAMEP (object)) |
235 | return Qframe; | |
81dc5de5 GM |
236 | if (GC_HASH_TABLE_P (object)) |
237 | return Qhash_table; | |
39bcc759 RS |
238 | return Qvector; |
239 | ||
39bcc759 RS |
240 | case Lisp_Float: |
241 | return Qfloat; | |
39bcc759 RS |
242 | |
243 | default: | |
244 | abort (); | |
245 | } | |
246 | } | |
247 | ||
8c1a1077 PJ |
248 | DEFUN ("consp", Fconsp, Sconsp, 1, 1, 0, |
249 | doc: /* Return t if OBJECT is a cons cell. */) | |
250 | (object) | |
39bcc759 | 251 | Lisp_Object object; |
7921925c | 252 | { |
39bcc759 | 253 | if (CONSP (object)) |
7921925c JB |
254 | return Qt; |
255 | return Qnil; | |
256 | } | |
257 | ||
25638b07 | 258 | DEFUN ("atom", Fatom, Satom, 1, 1, 0, |
8c1a1077 PJ |
259 | doc: /* Return t if OBJECT is not a cons cell. This includes nil. */) |
260 | (object) | |
39bcc759 | 261 | Lisp_Object object; |
7921925c | 262 | { |
39bcc759 | 263 | if (CONSP (object)) |
7921925c JB |
264 | return Qnil; |
265 | return Qt; | |
266 | } | |
267 | ||
25638b07 | 268 | DEFUN ("listp", Flistp, Slistp, 1, 1, 0, |
4cdcdcc9 LT |
269 | doc: /* Return t if OBJECT is a list, that is, a cons cell or nil. |
270 | Otherwise, return nil. */) | |
8c1a1077 | 271 | (object) |
39bcc759 | 272 | Lisp_Object object; |
7921925c | 273 | { |
39bcc759 | 274 | if (CONSP (object) || NILP (object)) |
7921925c JB |
275 | return Qt; |
276 | return Qnil; | |
277 | } | |
278 | ||
25638b07 | 279 | DEFUN ("nlistp", Fnlistp, Snlistp, 1, 1, 0, |
8c1a1077 PJ |
280 | doc: /* Return t if OBJECT is not a list. Lists include nil. */) |
281 | (object) | |
39bcc759 | 282 | Lisp_Object object; |
7921925c | 283 | { |
39bcc759 | 284 | if (CONSP (object) || NILP (object)) |
7921925c JB |
285 | return Qnil; |
286 | return Qt; | |
287 | } | |
288 | \f | |
25638b07 | 289 | DEFUN ("symbolp", Fsymbolp, Ssymbolp, 1, 1, 0, |
8c1a1077 PJ |
290 | doc: /* Return t if OBJECT is a symbol. */) |
291 | (object) | |
39bcc759 | 292 | Lisp_Object object; |
7921925c | 293 | { |
39bcc759 | 294 | if (SYMBOLP (object)) |
7921925c JB |
295 | return Qt; |
296 | return Qnil; | |
297 | } | |
298 | ||
cda9b832 DL |
299 | /* Define this in C to avoid unnecessarily consing up the symbol |
300 | name. */ | |
301 | DEFUN ("keywordp", Fkeywordp, Skeywordp, 1, 1, 0, | |
8c1a1077 PJ |
302 | doc: /* Return t if OBJECT is a keyword. |
303 | This means that it is a symbol with a print name beginning with `:' | |
304 | interned in the initial obarray. */) | |
305 | (object) | |
cda9b832 DL |
306 | Lisp_Object object; |
307 | { | |
308 | if (SYMBOLP (object) | |
d5db4077 | 309 | && SREF (SYMBOL_NAME (object), 0) == ':' |
f35d5bad | 310 | && SYMBOL_INTERNED_IN_INITIAL_OBARRAY_P (object)) |
cda9b832 DL |
311 | return Qt; |
312 | return Qnil; | |
313 | } | |
314 | ||
25638b07 | 315 | DEFUN ("vectorp", Fvectorp, Svectorp, 1, 1, 0, |
8c1a1077 PJ |
316 | doc: /* Return t if OBJECT is a vector. */) |
317 | (object) | |
39bcc759 | 318 | Lisp_Object object; |
7921925c | 319 | { |
39bcc759 | 320 | if (VECTORP (object)) |
7921925c JB |
321 | return Qt; |
322 | return Qnil; | |
323 | } | |
324 | ||
25638b07 | 325 | DEFUN ("stringp", Fstringp, Sstringp, 1, 1, 0, |
8c1a1077 PJ |
326 | doc: /* Return t if OBJECT is a string. */) |
327 | (object) | |
39bcc759 | 328 | Lisp_Object object; |
7921925c | 329 | { |
39bcc759 | 330 | if (STRINGP (object)) |
7921925c JB |
331 | return Qt; |
332 | return Qnil; | |
333 | } | |
334 | ||
25638b07 | 335 | DEFUN ("multibyte-string-p", Fmultibyte_string_p, Smultibyte_string_p, |
8c1a1077 PJ |
336 | 1, 1, 0, |
337 | doc: /* Return t if OBJECT is a multibyte string. */) | |
338 | (object) | |
25638b07 RS |
339 | Lisp_Object object; |
340 | { | |
341 | if (STRINGP (object) && STRING_MULTIBYTE (object)) | |
342 | return Qt; | |
343 | return Qnil; | |
344 | } | |
345 | ||
346 | DEFUN ("char-table-p", Fchar_table_p, Schar_table_p, 1, 1, 0, | |
8c1a1077 PJ |
347 | doc: /* Return t if OBJECT is a char-table. */) |
348 | (object) | |
4d276982 RS |
349 | Lisp_Object object; |
350 | { | |
351 | if (CHAR_TABLE_P (object)) | |
352 | return Qt; | |
353 | return Qnil; | |
354 | } | |
355 | ||
7f0edce7 RS |
356 | DEFUN ("vector-or-char-table-p", Fvector_or_char_table_p, |
357 | Svector_or_char_table_p, 1, 1, 0, | |
8c1a1077 PJ |
358 | doc: /* Return t if OBJECT is a char-table or vector. */) |
359 | (object) | |
7f0edce7 RS |
360 | Lisp_Object object; |
361 | { | |
362 | if (VECTORP (object) || CHAR_TABLE_P (object)) | |
363 | return Qt; | |
364 | return Qnil; | |
365 | } | |
366 | ||
8c1a1077 PJ |
367 | DEFUN ("bool-vector-p", Fbool_vector_p, Sbool_vector_p, 1, 1, 0, |
368 | doc: /* Return t if OBJECT is a bool-vector. */) | |
369 | (object) | |
4d276982 RS |
370 | Lisp_Object object; |
371 | { | |
372 | if (BOOL_VECTOR_P (object)) | |
373 | return Qt; | |
374 | return Qnil; | |
375 | } | |
376 | ||
8c1a1077 PJ |
377 | DEFUN ("arrayp", Farrayp, Sarrayp, 1, 1, 0, |
378 | doc: /* Return t if OBJECT is an array (string or vector). */) | |
379 | (object) | |
39bcc759 | 380 | Lisp_Object object; |
7921925c | 381 | { |
0c64a8cd | 382 | if (ARRAYP (object)) |
7921925c JB |
383 | return Qt; |
384 | return Qnil; | |
385 | } | |
386 | ||
387 | DEFUN ("sequencep", Fsequencep, Ssequencep, 1, 1, 0, | |
8c1a1077 PJ |
388 | doc: /* Return t if OBJECT is a sequence (list or array). */) |
389 | (object) | |
39bcc759 | 390 | register Lisp_Object object; |
7921925c | 391 | { |
0c64a8cd | 392 | if (CONSP (object) || NILP (object) || ARRAYP (object)) |
7921925c JB |
393 | return Qt; |
394 | return Qnil; | |
395 | } | |
396 | ||
8c1a1077 PJ |
397 | DEFUN ("bufferp", Fbufferp, Sbufferp, 1, 1, 0, |
398 | doc: /* Return t if OBJECT is an editor buffer. */) | |
399 | (object) | |
39bcc759 | 400 | Lisp_Object object; |
7921925c | 401 | { |
39bcc759 | 402 | if (BUFFERP (object)) |
7921925c JB |
403 | return Qt; |
404 | return Qnil; | |
405 | } | |
406 | ||
8c1a1077 PJ |
407 | DEFUN ("markerp", Fmarkerp, Smarkerp, 1, 1, 0, |
408 | doc: /* Return t if OBJECT is a marker (editor pointer). */) | |
409 | (object) | |
39bcc759 | 410 | Lisp_Object object; |
7921925c | 411 | { |
39bcc759 | 412 | if (MARKERP (object)) |
7921925c JB |
413 | return Qt; |
414 | return Qnil; | |
415 | } | |
416 | ||
8c1a1077 PJ |
417 | DEFUN ("subrp", Fsubrp, Ssubrp, 1, 1, 0, |
418 | doc: /* Return t if OBJECT is a built-in function. */) | |
419 | (object) | |
39bcc759 | 420 | Lisp_Object object; |
7921925c | 421 | { |
39bcc759 | 422 | if (SUBRP (object)) |
7921925c JB |
423 | return Qt; |
424 | return Qnil; | |
425 | } | |
426 | ||
dbc4e1c1 | 427 | DEFUN ("byte-code-function-p", Fbyte_code_function_p, Sbyte_code_function_p, |
8c1a1077 PJ |
428 | 1, 1, 0, |
429 | doc: /* Return t if OBJECT is a byte-compiled function object. */) | |
430 | (object) | |
39bcc759 | 431 | Lisp_Object object; |
7921925c | 432 | { |
39bcc759 | 433 | if (COMPILEDP (object)) |
7921925c JB |
434 | return Qt; |
435 | return Qnil; | |
436 | } | |
437 | ||
0321d75c | 438 | DEFUN ("char-or-string-p", Fchar_or_string_p, Schar_or_string_p, 1, 1, 0, |
8c1a1077 PJ |
439 | doc: /* Return t if OBJECT is a character (an integer) or a string. */) |
440 | (object) | |
39bcc759 | 441 | register Lisp_Object object; |
7921925c | 442 | { |
39bcc759 | 443 | if (INTEGERP (object) || STRINGP (object)) |
7921925c JB |
444 | return Qt; |
445 | return Qnil; | |
446 | } | |
447 | \f | |
8c1a1077 PJ |
448 | DEFUN ("integerp", Fintegerp, Sintegerp, 1, 1, 0, |
449 | doc: /* Return t if OBJECT is an integer. */) | |
450 | (object) | |
39bcc759 | 451 | Lisp_Object object; |
7921925c | 452 | { |
39bcc759 | 453 | if (INTEGERP (object)) |
7921925c JB |
454 | return Qt; |
455 | return Qnil; | |
456 | } | |
457 | ||
464f8898 | 458 | DEFUN ("integer-or-marker-p", Finteger_or_marker_p, Sinteger_or_marker_p, 1, 1, 0, |
8c1a1077 PJ |
459 | doc: /* Return t if OBJECT is an integer or a marker (editor pointer). */) |
460 | (object) | |
39bcc759 | 461 | register Lisp_Object object; |
7921925c | 462 | { |
39bcc759 | 463 | if (MARKERP (object) || INTEGERP (object)) |
7921925c JB |
464 | return Qt; |
465 | return Qnil; | |
466 | } | |
467 | ||
0321d75c | 468 | DEFUN ("natnump", Fnatnump, Snatnump, 1, 1, 0, |
8c1a1077 PJ |
469 | doc: /* Return t if OBJECT is a nonnegative integer. */) |
470 | (object) | |
39bcc759 | 471 | Lisp_Object object; |
7921925c | 472 | { |
39bcc759 | 473 | if (NATNUMP (object)) |
7921925c JB |
474 | return Qt; |
475 | return Qnil; | |
476 | } | |
477 | ||
478 | DEFUN ("numberp", Fnumberp, Snumberp, 1, 1, 0, | |
8c1a1077 PJ |
479 | doc: /* Return t if OBJECT is a number (floating point or integer). */) |
480 | (object) | |
39bcc759 | 481 | Lisp_Object object; |
7921925c | 482 | { |
39bcc759 | 483 | if (NUMBERP (object)) |
7921925c | 484 | return Qt; |
dbc4e1c1 JB |
485 | else |
486 | return Qnil; | |
7921925c JB |
487 | } |
488 | ||
489 | DEFUN ("number-or-marker-p", Fnumber_or_marker_p, | |
490 | Snumber_or_marker_p, 1, 1, 0, | |
8c1a1077 PJ |
491 | doc: /* Return t if OBJECT is a number or a marker. */) |
492 | (object) | |
39bcc759 | 493 | Lisp_Object object; |
7921925c | 494 | { |
39bcc759 | 495 | if (NUMBERP (object) || MARKERP (object)) |
7921925c JB |
496 | return Qt; |
497 | return Qnil; | |
498 | } | |
464f8898 | 499 | |
464f8898 | 500 | DEFUN ("floatp", Ffloatp, Sfloatp, 1, 1, 0, |
8c1a1077 PJ |
501 | doc: /* Return t if OBJECT is a floating point number. */) |
502 | (object) | |
39bcc759 | 503 | Lisp_Object object; |
464f8898 | 504 | { |
39bcc759 | 505 | if (FLOATP (object)) |
464f8898 RS |
506 | return Qt; |
507 | return Qnil; | |
508 | } | |
cc94f3b2 | 509 | |
7921925c JB |
510 | \f |
511 | /* Extract and set components of lists */ | |
512 | ||
513 | DEFUN ("car", Fcar, Scar, 1, 1, 0, | |
8c1a1077 | 514 | doc: /* Return the car of LIST. If arg is nil, return nil. |
9701c742 LT |
515 | Error if arg is not nil and not a cons cell. See also `car-safe'. |
516 | ||
da46c5be LT |
517 | See Info node `(elisp)Cons Cells' for a discussion of related basic |
518 | Lisp concepts such as car, cdr, cons cell and list. */) | |
8c1a1077 | 519 | (list) |
7921925c JB |
520 | register Lisp_Object list; |
521 | { | |
0c64a8cd | 522 | return CAR (list); |
7921925c JB |
523 | } |
524 | ||
525 | DEFUN ("car-safe", Fcar_safe, Scar_safe, 1, 1, 0, | |
8c1a1077 PJ |
526 | doc: /* Return the car of OBJECT if it is a cons cell, or else nil. */) |
527 | (object) | |
7921925c JB |
528 | Lisp_Object object; |
529 | { | |
0c64a8cd | 530 | return CAR_SAFE (object); |
7921925c JB |
531 | } |
532 | ||
533 | DEFUN ("cdr", Fcdr, Scdr, 1, 1, 0, | |
8c1a1077 | 534 | doc: /* Return the cdr of LIST. If arg is nil, return nil. |
9701c742 LT |
535 | Error if arg is not nil and not a cons cell. See also `cdr-safe'. |
536 | ||
da46c5be LT |
537 | See Info node `(elisp)Cons Cells' for a discussion of related basic |
538 | Lisp concepts such as cdr, car, cons cell and list. */) | |
8c1a1077 | 539 | (list) |
7921925c JB |
540 | register Lisp_Object list; |
541 | { | |
0c64a8cd | 542 | return CDR (list); |
7921925c JB |
543 | } |
544 | ||
545 | DEFUN ("cdr-safe", Fcdr_safe, Scdr_safe, 1, 1, 0, | |
8c1a1077 PJ |
546 | doc: /* Return the cdr of OBJECT if it is a cons cell, or else nil. */) |
547 | (object) | |
7921925c JB |
548 | Lisp_Object object; |
549 | { | |
0c64a8cd | 550 | return CDR_SAFE (object); |
7921925c JB |
551 | } |
552 | ||
553 | DEFUN ("setcar", Fsetcar, Ssetcar, 2, 2, 0, | |
8c1a1077 PJ |
554 | doc: /* Set the car of CELL to be NEWCAR. Returns NEWCAR. */) |
555 | (cell, newcar) | |
7921925c JB |
556 | register Lisp_Object cell, newcar; |
557 | { | |
0c64a8cd | 558 | CHECK_CONS (cell); |
7921925c | 559 | CHECK_IMPURE (cell); |
f3fbd155 | 560 | XSETCAR (cell, newcar); |
7921925c JB |
561 | return newcar; |
562 | } | |
563 | ||
564 | DEFUN ("setcdr", Fsetcdr, Ssetcdr, 2, 2, 0, | |
8c1a1077 PJ |
565 | doc: /* Set the cdr of CELL to be NEWCDR. Returns NEWCDR. */) |
566 | (cell, newcdr) | |
7921925c JB |
567 | register Lisp_Object cell, newcdr; |
568 | { | |
0c64a8cd | 569 | CHECK_CONS (cell); |
7921925c | 570 | CHECK_IMPURE (cell); |
f3fbd155 | 571 | XSETCDR (cell, newcdr); |
7921925c JB |
572 | return newcdr; |
573 | } | |
574 | \f | |
575 | /* Extract and set components of symbols */ | |
576 | ||
8c1a1077 PJ |
577 | DEFUN ("boundp", Fboundp, Sboundp, 1, 1, 0, |
578 | doc: /* Return t if SYMBOL's value is not void. */) | |
579 | (symbol) | |
d9c2a0f2 | 580 | register Lisp_Object symbol; |
7921925c JB |
581 | { |
582 | Lisp_Object valcontents; | |
b7826503 | 583 | CHECK_SYMBOL (symbol); |
7921925c | 584 | |
f35d5bad | 585 | valcontents = SYMBOL_VALUE (symbol); |
7921925c | 586 | |
aabf6bec KH |
587 | if (BUFFER_LOCAL_VALUEP (valcontents) |
588 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 589 | valcontents = swap_in_symval_forwarding (symbol, valcontents); |
7921925c | 590 | |
1bfcade3 | 591 | return (EQ (valcontents, Qunbound) ? Qnil : Qt); |
7921925c JB |
592 | } |
593 | ||
8c1a1077 PJ |
594 | DEFUN ("fboundp", Ffboundp, Sfboundp, 1, 1, 0, |
595 | doc: /* Return t if SYMBOL's function definition is not void. */) | |
596 | (symbol) | |
d9c2a0f2 | 597 | register Lisp_Object symbol; |
7921925c | 598 | { |
b7826503 | 599 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 600 | return (EQ (XSYMBOL (symbol)->function, Qunbound) ? Qnil : Qt); |
7921925c JB |
601 | } |
602 | ||
8c1a1077 | 603 | DEFUN ("makunbound", Fmakunbound, Smakunbound, 1, 1, 0, |
bfb96cb7 FP |
604 | doc: /* Make SYMBOL's value be void. |
605 | Return SYMBOL. */) | |
8c1a1077 | 606 | (symbol) |
d9c2a0f2 | 607 | register Lisp_Object symbol; |
7921925c | 608 | { |
b7826503 | 609 | CHECK_SYMBOL (symbol); |
64ec26d6 | 610 | if (SYMBOL_CONSTANT_P (symbol)) |
740ef0b5 | 611 | xsignal1 (Qsetting_constant, symbol); |
d9c2a0f2 EN |
612 | Fset (symbol, Qunbound); |
613 | return symbol; | |
7921925c JB |
614 | } |
615 | ||
8c1a1077 | 616 | DEFUN ("fmakunbound", Ffmakunbound, Sfmakunbound, 1, 1, 0, |
bfb96cb7 FP |
617 | doc: /* Make SYMBOL's function definition be void. |
618 | Return SYMBOL. */) | |
8c1a1077 | 619 | (symbol) |
d9c2a0f2 | 620 | register Lisp_Object symbol; |
7921925c | 621 | { |
b7826503 | 622 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 623 | if (NILP (symbol) || EQ (symbol, Qt)) |
740ef0b5 | 624 | xsignal1 (Qsetting_constant, symbol); |
d9c2a0f2 EN |
625 | XSYMBOL (symbol)->function = Qunbound; |
626 | return symbol; | |
7921925c JB |
627 | } |
628 | ||
629 | DEFUN ("symbol-function", Fsymbol_function, Ssymbol_function, 1, 1, 0, | |
8c1a1077 PJ |
630 | doc: /* Return SYMBOL's function definition. Error if that is void. */) |
631 | (symbol) | |
ffd56f97 | 632 | register Lisp_Object symbol; |
7921925c | 633 | { |
b7826503 | 634 | CHECK_SYMBOL (symbol); |
740ef0b5 KS |
635 | if (!EQ (XSYMBOL (symbol)->function, Qunbound)) |
636 | return XSYMBOL (symbol)->function; | |
637 | xsignal1 (Qvoid_function, symbol); | |
7921925c JB |
638 | } |
639 | ||
8c1a1077 PJ |
640 | DEFUN ("symbol-plist", Fsymbol_plist, Ssymbol_plist, 1, 1, 0, |
641 | doc: /* Return SYMBOL's property list. */) | |
642 | (symbol) | |
d9c2a0f2 | 643 | register Lisp_Object symbol; |
7921925c | 644 | { |
b7826503 | 645 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 646 | return XSYMBOL (symbol)->plist; |
7921925c JB |
647 | } |
648 | ||
8c1a1077 PJ |
649 | DEFUN ("symbol-name", Fsymbol_name, Ssymbol_name, 1, 1, 0, |
650 | doc: /* Return SYMBOL's name, a string. */) | |
651 | (symbol) | |
d9c2a0f2 | 652 | register Lisp_Object symbol; |
7921925c JB |
653 | { |
654 | register Lisp_Object name; | |
655 | ||
b7826503 | 656 | CHECK_SYMBOL (symbol); |
84023177 | 657 | name = SYMBOL_NAME (symbol); |
7921925c JB |
658 | return name; |
659 | } | |
660 | ||
661 | DEFUN ("fset", Ffset, Sfset, 2, 2, 0, | |
8c1a1077 PJ |
662 | doc: /* Set SYMBOL's function definition to DEFINITION, and return DEFINITION. */) |
663 | (symbol, definition) | |
8c0b5540 | 664 | register Lisp_Object symbol, definition; |
d9c2a0f2 | 665 | { |
b7826503 | 666 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 667 | if (NILP (symbol) || EQ (symbol, Qt)) |
740ef0b5 | 668 | xsignal1 (Qsetting_constant, symbol); |
d9c2a0f2 EN |
669 | if (!NILP (Vautoload_queue) && !EQ (XSYMBOL (symbol)->function, Qunbound)) |
670 | Vautoload_queue = Fcons (Fcons (symbol, XSYMBOL (symbol)->function), | |
7921925c | 671 | Vautoload_queue); |
8c0b5540 | 672 | XSYMBOL (symbol)->function = definition; |
f845f2c9 | 673 | /* Handle automatic advice activation */ |
d9c2a0f2 | 674 | if (CONSP (XSYMBOL (symbol)->plist) && !NILP (Fget (symbol, Qad_advice_info))) |
f845f2c9 | 675 | { |
c1307a23 | 676 | call2 (Qad_activate_internal, symbol, Qnil); |
8c0b5540 | 677 | definition = XSYMBOL (symbol)->function; |
f845f2c9 | 678 | } |
8c0b5540 | 679 | return definition; |
7921925c JB |
680 | } |
681 | ||
d2fde41d SM |
682 | extern Lisp_Object Qfunction_documentation; |
683 | ||
684 | DEFUN ("defalias", Fdefalias, Sdefalias, 2, 3, 0, | |
8c1a1077 | 685 | doc: /* Set SYMBOL's function definition to DEFINITION, and return DEFINITION. |
96143227 RS |
686 | Associates the function with the current load file, if any. |
687 | The optional third argument DOCSTRING specifies the documentation string | |
688 | for SYMBOL; if it is omitted or nil, SYMBOL uses the documentation string | |
689 | determined by DEFINITION. */) | |
d2fde41d SM |
690 | (symbol, definition, docstring) |
691 | register Lisp_Object symbol, definition, docstring; | |
fc08c367 | 692 | { |
8a658a52 | 693 | CHECK_SYMBOL (symbol); |
894f6538 RS |
694 | if (CONSP (XSYMBOL (symbol)->function) |
695 | && EQ (XCAR (XSYMBOL (symbol)->function), Qautoload)) | |
696 | LOADHIST_ATTACH (Fcons (Qt, symbol)); | |
32f532b7 | 697 | definition = Ffset (symbol, definition); |
62a29071 | 698 | LOADHIST_ATTACH (Fcons (Qdefun, symbol)); |
d2fde41d SM |
699 | if (!NILP (docstring)) |
700 | Fput (symbol, Qfunction_documentation, docstring); | |
73e0d965 | 701 | return definition; |
fc08c367 RS |
702 | } |
703 | ||
7921925c | 704 | DEFUN ("setplist", Fsetplist, Ssetplist, 2, 2, 0, |
29802b85 | 705 | doc: /* Set SYMBOL's property list to NEWPLIST, and return NEWPLIST. */) |
8c1a1077 | 706 | (symbol, newplist) |
d9c2a0f2 | 707 | register Lisp_Object symbol, newplist; |
7921925c | 708 | { |
b7826503 | 709 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 710 | XSYMBOL (symbol)->plist = newplist; |
7921925c JB |
711 | return newplist; |
712 | } | |
ffd56f97 | 713 | |
6f0e897f | 714 | DEFUN ("subr-arity", Fsubr_arity, Ssubr_arity, 1, 1, 0, |
8c1a1077 PJ |
715 | doc: /* Return minimum and maximum number of args allowed for SUBR. |
716 | SUBR must be a built-in function. | |
717 | The returned value is a pair (MIN . MAX). MIN is the minimum number | |
718 | of args. MAX is the maximum number or the symbol `many', for a | |
719 | function with `&rest' args, or `unevalled' for a special form. */) | |
720 | (subr) | |
6f0e897f DL |
721 | Lisp_Object subr; |
722 | { | |
723 | short minargs, maxargs; | |
0c64a8cd | 724 | CHECK_SUBR (subr); |
6f0e897f DL |
725 | minargs = XSUBR (subr)->min_args; |
726 | maxargs = XSUBR (subr)->max_args; | |
727 | if (maxargs == MANY) | |
728 | return Fcons (make_number (minargs), Qmany); | |
729 | else if (maxargs == UNEVALLED) | |
730 | return Fcons (make_number (minargs), Qunevalled); | |
731 | else | |
732 | return Fcons (make_number (minargs), make_number (maxargs)); | |
733 | } | |
734 | ||
0fddae66 SM |
735 | DEFUN ("subr-name", Fsubr_name, Ssubr_name, 1, 1, 0, |
736 | doc: /* Return name of subroutine SUBR. | |
737 | SUBR must be a built-in function. */) | |
738 | (subr) | |
739 | Lisp_Object subr; | |
740 | { | |
741 | const char *name; | |
0c64a8cd | 742 | CHECK_SUBR (subr); |
0fddae66 SM |
743 | name = XSUBR (subr)->symbol_name; |
744 | return make_string (name, strlen (name)); | |
745 | } | |
746 | ||
f52a3ca3 SM |
747 | DEFUN ("interactive-form", Finteractive_form, Sinteractive_form, 1, 1, 0, |
748 | doc: /* Return the interactive form of CMD or nil if none. | |
df133612 LT |
749 | If CMD is not a command, the return value is nil. |
750 | Value, if non-nil, is a list \(interactive SPEC). */) | |
f52a3ca3 SM |
751 | (cmd) |
752 | Lisp_Object cmd; | |
cc515226 | 753 | { |
f52a3ca3 SM |
754 | Lisp_Object fun = indirect_function (cmd); |
755 | ||
756 | if (SUBRP (fun)) | |
757 | { | |
758 | if (XSUBR (fun)->prompt) | |
759 | return list2 (Qinteractive, build_string (XSUBR (fun)->prompt)); | |
760 | } | |
761 | else if (COMPILEDP (fun)) | |
762 | { | |
763 | if ((ASIZE (fun) & PSEUDOVECTOR_SIZE_MASK) > COMPILED_INTERACTIVE) | |
764 | return list2 (Qinteractive, AREF (fun, COMPILED_INTERACTIVE)); | |
765 | } | |
766 | else if (CONSP (fun)) | |
767 | { | |
768 | Lisp_Object funcar = XCAR (fun); | |
769 | if (EQ (funcar, Qlambda)) | |
770 | return Fassq (Qinteractive, Fcdr (XCDR (fun))); | |
771 | else if (EQ (funcar, Qautoload)) | |
772 | { | |
773 | struct gcpro gcpro1; | |
774 | GCPRO1 (cmd); | |
775 | do_autoload (fun, cmd); | |
776 | UNGCPRO; | |
777 | return Finteractive_form (cmd); | |
778 | } | |
779 | } | |
cc515226 GM |
780 | return Qnil; |
781 | } | |
782 | ||
7921925c | 783 | \f |
f35d5bad GM |
784 | /*********************************************************************** |
785 | Getting and Setting Values of Symbols | |
786 | ***********************************************************************/ | |
787 | ||
788 | /* Return the symbol holding SYMBOL's value. Signal | |
789 | `cyclic-variable-indirection' if SYMBOL's chain of variable | |
790 | indirections contains a loop. */ | |
791 | ||
792 | Lisp_Object | |
793 | indirect_variable (symbol) | |
794 | Lisp_Object symbol; | |
795 | { | |
796 | Lisp_Object tortoise, hare; | |
797 | ||
798 | hare = tortoise = symbol; | |
799 | ||
800 | while (XSYMBOL (hare)->indirect_variable) | |
801 | { | |
802 | hare = XSYMBOL (hare)->value; | |
803 | if (!XSYMBOL (hare)->indirect_variable) | |
804 | break; | |
bfb96cb7 | 805 | |
f35d5bad GM |
806 | hare = XSYMBOL (hare)->value; |
807 | tortoise = XSYMBOL (tortoise)->value; | |
808 | ||
809 | if (EQ (hare, tortoise)) | |
740ef0b5 | 810 | xsignal1 (Qcyclic_variable_indirection, symbol); |
f35d5bad GM |
811 | } |
812 | ||
813 | return hare; | |
814 | } | |
815 | ||
816 | ||
817 | DEFUN ("indirect-variable", Findirect_variable, Sindirect_variable, 1, 1, 0, | |
8c1a1077 PJ |
818 | doc: /* Return the variable at the end of OBJECT's variable chain. |
819 | If OBJECT is a symbol, follow all variable indirections and return the final | |
820 | variable. If OBJECT is not a symbol, just return it. | |
821 | Signal a cyclic-variable-indirection error if there is a loop in the | |
822 | variable chain of symbols. */) | |
823 | (object) | |
f35d5bad GM |
824 | Lisp_Object object; |
825 | { | |
826 | if (SYMBOLP (object)) | |
827 | object = indirect_variable (object); | |
828 | return object; | |
829 | } | |
830 | ||
7921925c JB |
831 | |
832 | /* Given the raw contents of a symbol value cell, | |
833 | return the Lisp value of the symbol. | |
834 | This does not handle buffer-local variables; use | |
835 | swap_in_symval_forwarding for that. */ | |
836 | ||
837 | Lisp_Object | |
838 | do_symval_forwarding (valcontents) | |
839 | register Lisp_Object valcontents; | |
840 | { | |
841 | register Lisp_Object val; | |
46b2ac21 KH |
842 | int offset; |
843 | if (MISCP (valcontents)) | |
324a6eef | 844 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
845 | { |
846 | case Lisp_Misc_Intfwd: | |
847 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
848 | return val; | |
7921925c | 849 | |
46b2ac21 KH |
850 | case Lisp_Misc_Boolfwd: |
851 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
7921925c | 852 | |
46b2ac21 KH |
853 | case Lisp_Misc_Objfwd: |
854 | return *XOBJFWD (valcontents)->objvar; | |
7921925c | 855 | |
46b2ac21 KH |
856 | case Lisp_Misc_Buffer_Objfwd: |
857 | offset = XBUFFER_OBJFWD (valcontents)->offset; | |
f6cd0527 | 858 | return PER_BUFFER_VALUE (current_buffer, offset); |
7403b5c8 | 859 | |
e5f8af9e KH |
860 | case Lisp_Misc_Kboard_Objfwd: |
861 | offset = XKBOARD_OBJFWD (valcontents)->offset; | |
c40bb1ba KL |
862 | /* We used to simply use current_kboard here, but from Lisp |
863 | code, it's value is often unexpected. It seems nicer to | |
864 | allow constructions like this to work as intuitively expected: | |
865 | ||
866 | (with-selected-frame frame | |
867 | (define-key local-function-map "\eOP" [f1])) | |
868 | ||
869 | On the other hand, this affects the semantics of | |
870 | last-command and real-last-command, and people may rely on | |
871 | that. I took a quick look at the Lisp codebase, and I | |
872 | don't think anything will break. --lorentey */ | |
873 | return *(Lisp_Object *)(offset + (char *)FRAME_KBOARD (SELECTED_FRAME ())); | |
46b2ac21 | 874 | } |
7921925c JB |
875 | return valcontents; |
876 | } | |
877 | ||
d9c2a0f2 EN |
878 | /* Store NEWVAL into SYMBOL, where VALCONTENTS is found in the value cell |
879 | of SYMBOL. If SYMBOL is buffer-local, VALCONTENTS should be the | |
7921925c | 880 | buffer-independent contents of the value cell: forwarded just one |
7a283f36 GM |
881 | step past the buffer-localness. |
882 | ||
883 | BUF non-zero means set the value in buffer BUF instead of the | |
884 | current buffer. This only plays a role for per-buffer variables. */ | |
7921925c JB |
885 | |
886 | void | |
7a283f36 | 887 | store_symval_forwarding (symbol, valcontents, newval, buf) |
d9c2a0f2 | 888 | Lisp_Object symbol; |
7921925c | 889 | register Lisp_Object valcontents, newval; |
7a283f36 | 890 | struct buffer *buf; |
7921925c | 891 | { |
0220c518 | 892 | switch (SWITCH_ENUM_CAST (XTYPE (valcontents))) |
7921925c | 893 | { |
46b2ac21 | 894 | case Lisp_Misc: |
324a6eef | 895 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
896 | { |
897 | case Lisp_Misc_Intfwd: | |
b7826503 | 898 | CHECK_NUMBER (newval); |
46b2ac21 | 899 | *XINTFWD (valcontents)->intvar = XINT (newval); |
e6c82a8d RS |
900 | if (*XINTFWD (valcontents)->intvar != XINT (newval)) |
901 | error ("Value out of range for variable `%s'", | |
d5db4077 | 902 | SDATA (SYMBOL_NAME (symbol))); |
46b2ac21 KH |
903 | break; |
904 | ||
905 | case Lisp_Misc_Boolfwd: | |
906 | *XBOOLFWD (valcontents)->boolvar = NILP (newval) ? 0 : 1; | |
907 | break; | |
908 | ||
909 | case Lisp_Misc_Objfwd: | |
910 | *XOBJFWD (valcontents)->objvar = newval; | |
7abd90ea RS |
911 | |
912 | /* If this variable is a default for something stored | |
913 | in the buffer itself, such as default-fill-column, | |
914 | find the buffers that don't have local values for it | |
915 | and update them. */ | |
916 | if (XOBJFWD (valcontents)->objvar > (Lisp_Object *) &buffer_defaults | |
917 | && XOBJFWD (valcontents)->objvar < (Lisp_Object *) (&buffer_defaults + 1)) | |
918 | { | |
919 | int offset = ((char *) XOBJFWD (valcontents)->objvar | |
920 | - (char *) &buffer_defaults); | |
921 | int idx = PER_BUFFER_IDX (offset); | |
922 | ||
43e50e40 | 923 | Lisp_Object tail; |
7abd90ea RS |
924 | |
925 | if (idx <= 0) | |
926 | break; | |
927 | ||
928 | for (tail = Vbuffer_alist; CONSP (tail); tail = XCDR (tail)) | |
929 | { | |
930 | Lisp_Object buf; | |
931 | struct buffer *b; | |
932 | ||
933 | buf = Fcdr (XCAR (tail)); | |
934 | if (!BUFFERP (buf)) continue; | |
935 | b = XBUFFER (buf); | |
936 | ||
937 | if (! PER_BUFFER_VALUE_P (b, idx)) | |
938 | PER_BUFFER_VALUE (b, offset) = newval; | |
939 | } | |
940 | } | |
46b2ac21 KH |
941 | break; |
942 | ||
943 | case Lisp_Misc_Buffer_Objfwd: | |
944 | { | |
945 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
946 | Lisp_Object type; | |
947 | ||
d9b36d19 | 948 | type = PER_BUFFER_TYPE (offset); |
46b2ac21 KH |
949 | if (! NILP (type) && ! NILP (newval) |
950 | && XTYPE (newval) != XINT (type)) | |
951 | buffer_slot_type_mismatch (offset); | |
952 | ||
7a283f36 GM |
953 | if (buf == NULL) |
954 | buf = current_buffer; | |
955 | PER_BUFFER_VALUE (buf, offset) = newval; | |
46b2ac21 | 956 | } |
7403b5c8 KH |
957 | break; |
958 | ||
e5f8af9e | 959 | case Lisp_Misc_Kboard_Objfwd: |
7a283f36 | 960 | { |
c40bb1ba | 961 | char *base = (char *) FRAME_KBOARD (SELECTED_FRAME ()); |
7a283f36 GM |
962 | char *p = base + XKBOARD_OBJFWD (valcontents)->offset; |
963 | *(Lisp_Object *) p = newval; | |
964 | } | |
7403b5c8 KH |
965 | break; |
966 | ||
46b2ac21 KH |
967 | default: |
968 | goto def; | |
969 | } | |
7921925c JB |
970 | break; |
971 | ||
7921925c | 972 | default: |
46b2ac21 | 973 | def: |
f35d5bad | 974 | valcontents = SYMBOL_VALUE (symbol); |
e9ebc175 KH |
975 | if (BUFFER_LOCAL_VALUEP (valcontents) |
976 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
b0c2d1c6 | 977 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue = newval; |
7921925c | 978 | else |
f35d5bad | 979 | SET_SYMBOL_VALUE (symbol, newval); |
7921925c JB |
980 | } |
981 | } | |
982 | ||
b0d53add GM |
983 | /* Set up SYMBOL to refer to its global binding. |
984 | This makes it safe to alter the status of other bindings. */ | |
985 | ||
986 | void | |
987 | swap_in_global_binding (symbol) | |
988 | Lisp_Object symbol; | |
989 | { | |
990 | Lisp_Object valcontents, cdr; | |
bfb96cb7 | 991 | |
f35d5bad | 992 | valcontents = SYMBOL_VALUE (symbol); |
b0d53add GM |
993 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
994 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
995 | abort (); | |
996 | cdr = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
997 | ||
998 | /* Unload the previously loaded binding. */ | |
999 | Fsetcdr (XCAR (cdr), | |
1000 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); | |
bfb96cb7 | 1001 | |
b0d53add | 1002 | /* Select the global binding in the symbol. */ |
f3fbd155 | 1003 | XSETCAR (cdr, cdr); |
7a283f36 | 1004 | store_symval_forwarding (symbol, valcontents, XCDR (cdr), NULL); |
b0d53add GM |
1005 | |
1006 | /* Indicate that the global binding is set up now. */ | |
1007 | XBUFFER_LOCAL_VALUE (valcontents)->frame = Qnil; | |
1008 | XBUFFER_LOCAL_VALUE (valcontents)->buffer = Qnil; | |
1009 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; | |
1010 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
1011 | } | |
1012 | ||
2829d05f | 1013 | /* Set up the buffer-local symbol SYMBOL for validity in the current buffer. |
42e975f0 RS |
1014 | VALCONTENTS is the contents of its value cell, |
1015 | which points to a struct Lisp_Buffer_Local_Value. | |
1016 | ||
1017 | Return the value forwarded one step past the buffer-local stage. | |
1018 | This could be another forwarding pointer. */ | |
7921925c JB |
1019 | |
1020 | static Lisp_Object | |
d9c2a0f2 EN |
1021 | swap_in_symval_forwarding (symbol, valcontents) |
1022 | Lisp_Object symbol, valcontents; | |
7921925c | 1023 | { |
7921925c | 1024 | register Lisp_Object tem1; |
bfb96cb7 | 1025 | |
b0c2d1c6 | 1026 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
7921925c | 1027 | |
42e975f0 RS |
1028 | if (NILP (tem1) |
1029 | || current_buffer != XBUFFER (tem1) | |
1030 | || (XBUFFER_LOCAL_VALUE (valcontents)->check_frame | |
1031 | && ! EQ (selected_frame, XBUFFER_LOCAL_VALUE (valcontents)->frame))) | |
7921925c | 1032 | { |
f35d5bad GM |
1033 | if (XSYMBOL (symbol)->indirect_variable) |
1034 | symbol = indirect_variable (symbol); | |
bfb96cb7 | 1035 | |
42e975f0 | 1036 | /* Unload the previously loaded binding. */ |
7539e11f | 1037 | tem1 = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
8d4afcac | 1038 | Fsetcdr (tem1, |
b0c2d1c6 | 1039 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); |
42e975f0 | 1040 | /* Choose the new binding. */ |
d9c2a0f2 | 1041 | tem1 = assq_no_quit (symbol, current_buffer->local_var_alist); |
b0c2d1c6 RS |
1042 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; |
1043 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
a33ef3ab | 1044 | if (NILP (tem1)) |
b0c2d1c6 RS |
1045 | { |
1046 | if (XBUFFER_LOCAL_VALUE (valcontents)->check_frame) | |
1cc04aed | 1047 | tem1 = assq_no_quit (symbol, XFRAME (selected_frame)->param_alist); |
b0c2d1c6 RS |
1048 | if (! NILP (tem1)) |
1049 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 1; | |
1050 | else | |
1051 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
1052 | } | |
1053 | else | |
1054 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 1; | |
1055 | ||
42e975f0 | 1056 | /* Load the new binding. */ |
f3fbd155 | 1057 | XSETCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr, tem1); |
b0c2d1c6 | 1058 | XSETBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer, current_buffer); |
1cc04aed | 1059 | XBUFFER_LOCAL_VALUE (valcontents)->frame = selected_frame; |
b0c2d1c6 RS |
1060 | store_symval_forwarding (symbol, |
1061 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue, | |
7a283f36 | 1062 | Fcdr (tem1), NULL); |
7921925c | 1063 | } |
b0c2d1c6 | 1064 | return XBUFFER_LOCAL_VALUE (valcontents)->realvalue; |
7921925c JB |
1065 | } |
1066 | \f | |
14e76af9 JB |
1067 | /* Find the value of a symbol, returning Qunbound if it's not bound. |
1068 | This is helpful for code which just wants to get a variable's value | |
8e6208c5 | 1069 | if it has one, without signaling an error. |
14e76af9 JB |
1070 | Note that it must not be possible to quit |
1071 | within this function. Great care is required for this. */ | |
7921925c | 1072 | |
14e76af9 | 1073 | Lisp_Object |
d9c2a0f2 EN |
1074 | find_symbol_value (symbol) |
1075 | Lisp_Object symbol; | |
7921925c | 1076 | { |
dd8daec5 | 1077 | register Lisp_Object valcontents; |
7921925c | 1078 | register Lisp_Object val; |
bfb96cb7 | 1079 | |
b7826503 | 1080 | CHECK_SYMBOL (symbol); |
f35d5bad | 1081 | valcontents = SYMBOL_VALUE (symbol); |
7921925c | 1082 | |
aabf6bec KH |
1083 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1084 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
2a359158 | 1085 | valcontents = swap_in_symval_forwarding (symbol, valcontents); |
7921925c | 1086 | |
536b772a KH |
1087 | if (MISCP (valcontents)) |
1088 | { | |
324a6eef | 1089 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
1090 | { |
1091 | case Lisp_Misc_Intfwd: | |
1092 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
1093 | return val; | |
7921925c | 1094 | |
46b2ac21 KH |
1095 | case Lisp_Misc_Boolfwd: |
1096 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
7921925c | 1097 | |
46b2ac21 KH |
1098 | case Lisp_Misc_Objfwd: |
1099 | return *XOBJFWD (valcontents)->objvar; | |
7921925c | 1100 | |
46b2ac21 | 1101 | case Lisp_Misc_Buffer_Objfwd: |
f6cd0527 | 1102 | return PER_BUFFER_VALUE (current_buffer, |
999b32fd | 1103 | XBUFFER_OBJFWD (valcontents)->offset); |
7403b5c8 | 1104 | |
e5f8af9e KH |
1105 | case Lisp_Misc_Kboard_Objfwd: |
1106 | return *(Lisp_Object *)(XKBOARD_OBJFWD (valcontents)->offset | |
c40bb1ba | 1107 | + (char *)FRAME_KBOARD (SELECTED_FRAME ())); |
46b2ac21 | 1108 | } |
7921925c JB |
1109 | } |
1110 | ||
1111 | return valcontents; | |
1112 | } | |
1113 | ||
14e76af9 | 1114 | DEFUN ("symbol-value", Fsymbol_value, Ssymbol_value, 1, 1, 0, |
8c1a1077 PJ |
1115 | doc: /* Return SYMBOL's value. Error if that is void. */) |
1116 | (symbol) | |
d9c2a0f2 | 1117 | Lisp_Object symbol; |
14e76af9 | 1118 | { |
0671d7c0 | 1119 | Lisp_Object val; |
14e76af9 | 1120 | |
d9c2a0f2 | 1121 | val = find_symbol_value (symbol); |
740ef0b5 | 1122 | if (!EQ (val, Qunbound)) |
14e76af9 | 1123 | return val; |
740ef0b5 KS |
1124 | |
1125 | xsignal1 (Qvoid_variable, symbol); | |
14e76af9 JB |
1126 | } |
1127 | ||
7921925c | 1128 | DEFUN ("set", Fset, Sset, 2, 2, 0, |
8c1a1077 PJ |
1129 | doc: /* Set SYMBOL's value to NEWVAL, and return NEWVAL. */) |
1130 | (symbol, newval) | |
d9c2a0f2 | 1131 | register Lisp_Object symbol, newval; |
05ef7169 | 1132 | { |
2829d05f | 1133 | return set_internal (symbol, newval, current_buffer, 0); |
05ef7169 RS |
1134 | } |
1135 | ||
1f35ce36 RS |
1136 | /* Return 1 if SYMBOL currently has a let-binding |
1137 | which was made in the buffer that is now current. */ | |
1138 | ||
1139 | static int | |
1140 | let_shadows_buffer_binding_p (symbol) | |
1141 | Lisp_Object symbol; | |
1142 | { | |
92426155 | 1143 | volatile struct specbinding *p; |
1f35ce36 RS |
1144 | |
1145 | for (p = specpdl_ptr - 1; p >= specpdl; p--) | |
f35d5bad GM |
1146 | if (p->func == NULL |
1147 | && CONSP (p->symbol)) | |
1148 | { | |
1149 | Lisp_Object let_bound_symbol = XCAR (p->symbol); | |
1150 | if ((EQ (symbol, let_bound_symbol) | |
1151 | || (XSYMBOL (let_bound_symbol)->indirect_variable | |
1152 | && EQ (symbol, indirect_variable (let_bound_symbol)))) | |
1153 | && XBUFFER (XCDR (XCDR (p->symbol))) == current_buffer) | |
1154 | break; | |
1155 | } | |
1f35ce36 | 1156 | |
f35d5bad | 1157 | return p >= specpdl; |
1f35ce36 RS |
1158 | } |
1159 | ||
25638b07 | 1160 | /* Store the value NEWVAL into SYMBOL. |
2829d05f RS |
1161 | If buffer-locality is an issue, BUF specifies which buffer to use. |
1162 | (0 stands for the current buffer.) | |
1163 | ||
05ef7169 RS |
1164 | If BINDFLAG is zero, then if this symbol is supposed to become |
1165 | local in every buffer where it is set, then we make it local. | |
1166 | If BINDFLAG is nonzero, we don't do that. */ | |
1167 | ||
1168 | Lisp_Object | |
2829d05f | 1169 | set_internal (symbol, newval, buf, bindflag) |
05ef7169 | 1170 | register Lisp_Object symbol, newval; |
2829d05f | 1171 | struct buffer *buf; |
05ef7169 | 1172 | int bindflag; |
7921925c | 1173 | { |
1bfcade3 | 1174 | int voide = EQ (newval, Qunbound); |
7921925c | 1175 | |
4c47c973 | 1176 | register Lisp_Object valcontents, innercontents, tem1, current_alist_element; |
7921925c | 1177 | |
2829d05f RS |
1178 | if (buf == 0) |
1179 | buf = current_buffer; | |
1180 | ||
1181 | /* If restoring in a dead buffer, do nothing. */ | |
1182 | if (NILP (buf->name)) | |
1183 | return newval; | |
1184 | ||
b7826503 | 1185 | CHECK_SYMBOL (symbol); |
f35d5bad GM |
1186 | if (SYMBOL_CONSTANT_P (symbol) |
1187 | && (NILP (Fkeywordp (symbol)) | |
1188 | || !EQ (newval, SYMBOL_VALUE (symbol)))) | |
740ef0b5 | 1189 | xsignal1 (Qsetting_constant, symbol); |
4c47c973 | 1190 | |
f35d5bad | 1191 | innercontents = valcontents = SYMBOL_VALUE (symbol); |
bfb96cb7 | 1192 | |
e9ebc175 | 1193 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1194 | { |
999b32fd | 1195 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 | 1196 | int idx = PER_BUFFER_IDX (offset); |
999b32fd GM |
1197 | if (idx > 0 |
1198 | && !bindflag | |
1199 | && !let_shadows_buffer_binding_p (symbol)) | |
f6cd0527 | 1200 | SET_PER_BUFFER_VALUE_P (buf, idx, 1); |
7921925c | 1201 | } |
e9ebc175 KH |
1202 | else if (BUFFER_LOCAL_VALUEP (valcontents) |
1203 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c | 1204 | { |
42e975f0 | 1205 | /* valcontents is a struct Lisp_Buffer_Local_Value. */ |
f35d5bad GM |
1206 | if (XSYMBOL (symbol)->indirect_variable) |
1207 | symbol = indirect_variable (symbol); | |
42e975f0 RS |
1208 | |
1209 | /* What binding is loaded right now? */ | |
b0c2d1c6 | 1210 | current_alist_element |
7539e11f | 1211 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
d8cafeb5 JB |
1212 | |
1213 | /* If the current buffer is not the buffer whose binding is | |
42e975f0 RS |
1214 | loaded, or if there may be frame-local bindings and the frame |
1215 | isn't the right one, or if it's a Lisp_Buffer_Local_Value and | |
1216 | the default binding is loaded, the loaded binding may be the | |
1217 | wrong one. */ | |
8801a864 KR |
1218 | if (!BUFFERP (XBUFFER_LOCAL_VALUE (valcontents)->buffer) |
1219 | || buf != XBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer) | |
42e975f0 RS |
1220 | || (XBUFFER_LOCAL_VALUE (valcontents)->check_frame |
1221 | && !EQ (selected_frame, XBUFFER_LOCAL_VALUE (valcontents)->frame)) | |
1222 | || (BUFFER_LOCAL_VALUEP (valcontents) | |
1223 | && EQ (XCAR (current_alist_element), | |
1224 | current_alist_element))) | |
7921925c | 1225 | { |
42e975f0 RS |
1226 | /* The currently loaded binding is not necessarily valid. |
1227 | We need to unload it, and choose a new binding. */ | |
1228 | ||
1229 | /* Write out `realvalue' to the old loaded binding. */ | |
d8cafeb5 | 1230 | Fsetcdr (current_alist_element, |
b0c2d1c6 | 1231 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); |
7921925c | 1232 | |
42e975f0 | 1233 | /* Find the new binding. */ |
2829d05f | 1234 | tem1 = Fassq (symbol, buf->local_var_alist); |
b0c2d1c6 RS |
1235 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 1; |
1236 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; | |
1237 | ||
a33ef3ab | 1238 | if (NILP (tem1)) |
d8cafeb5 JB |
1239 | { |
1240 | /* This buffer still sees the default value. */ | |
1241 | ||
1242 | /* If the variable is a Lisp_Some_Buffer_Local_Value, | |
05ef7169 | 1243 | or if this is `let' rather than `set', |
d8cafeb5 | 1244 | make CURRENT-ALIST-ELEMENT point to itself, |
1f35ce36 RS |
1245 | indicating that we're seeing the default value. |
1246 | Likewise if the variable has been let-bound | |
1247 | in the current buffer. */ | |
1248 | if (bindflag || SOME_BUFFER_LOCAL_VALUEP (valcontents) | |
1249 | || let_shadows_buffer_binding_p (symbol)) | |
b0c2d1c6 RS |
1250 | { |
1251 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
1252 | ||
1253 | if (XBUFFER_LOCAL_VALUE (valcontents)->check_frame) | |
1cc04aed GM |
1254 | tem1 = Fassq (symbol, |
1255 | XFRAME (selected_frame)->param_alist); | |
d8cafeb5 | 1256 | |
b0c2d1c6 RS |
1257 | if (! NILP (tem1)) |
1258 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 1; | |
1259 | else | |
1260 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
1261 | } | |
05ef7169 | 1262 | /* If it's a Lisp_Buffer_Local_Value, being set not bound, |
1f35ce36 RS |
1263 | and we're not within a let that was made for this buffer, |
1264 | create a new buffer-local binding for the variable. | |
1265 | That means, give this buffer a new assoc for a local value | |
42e975f0 | 1266 | and load that binding. */ |
d8cafeb5 JB |
1267 | else |
1268 | { | |
d2fde41d | 1269 | tem1 = Fcons (symbol, XCDR (current_alist_element)); |
2829d05f RS |
1270 | buf->local_var_alist |
1271 | = Fcons (tem1, buf->local_var_alist); | |
d8cafeb5 JB |
1272 | } |
1273 | } | |
b0c2d1c6 | 1274 | |
42e975f0 | 1275 | /* Record which binding is now loaded. */ |
f3fbd155 KR |
1276 | XSETCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr, |
1277 | tem1); | |
d8cafeb5 | 1278 | |
8013296c | 1279 | /* Set `buffer' and `frame' slots for the binding now loaded. */ |
2829d05f | 1280 | XSETBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer, buf); |
1cc04aed | 1281 | XBUFFER_LOCAL_VALUE (valcontents)->frame = selected_frame; |
7921925c | 1282 | } |
4c47c973 | 1283 | innercontents = XBUFFER_LOCAL_VALUE (valcontents)->realvalue; |
7921925c | 1284 | } |
d8cafeb5 | 1285 | |
7921925c JB |
1286 | /* If storing void (making the symbol void), forward only through |
1287 | buffer-local indicator, not through Lisp_Objfwd, etc. */ | |
1288 | if (voide) | |
7a283f36 | 1289 | store_symval_forwarding (symbol, Qnil, newval, buf); |
7921925c | 1290 | else |
7a283f36 | 1291 | store_symval_forwarding (symbol, innercontents, newval, buf); |
4c47c973 GM |
1292 | |
1293 | /* If we just set a variable whose current binding is frame-local, | |
1294 | store the new value in the frame parameter too. */ | |
1295 | ||
1296 | if (BUFFER_LOCAL_VALUEP (valcontents) | |
1297 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
1298 | { | |
1299 | /* What binding is loaded right now? */ | |
1300 | current_alist_element | |
1301 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); | |
1302 | ||
1303 | /* If the current buffer is not the buffer whose binding is | |
1304 | loaded, or if there may be frame-local bindings and the frame | |
1305 | isn't the right one, or if it's a Lisp_Buffer_Local_Value and | |
1306 | the default binding is loaded, the loaded binding may be the | |
1307 | wrong one. */ | |
1308 | if (XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame) | |
f3fbd155 | 1309 | XSETCDR (current_alist_element, newval); |
4c47c973 | 1310 | } |
d8cafeb5 | 1311 | |
7921925c JB |
1312 | return newval; |
1313 | } | |
1314 | \f | |
1315 | /* Access or set a buffer-local symbol's default value. */ | |
1316 | ||
d9c2a0f2 | 1317 | /* Return the default value of SYMBOL, but don't check for voidness. |
1bfcade3 | 1318 | Return Qunbound if it is void. */ |
7921925c JB |
1319 | |
1320 | Lisp_Object | |
d9c2a0f2 EN |
1321 | default_value (symbol) |
1322 | Lisp_Object symbol; | |
7921925c JB |
1323 | { |
1324 | register Lisp_Object valcontents; | |
1325 | ||
b7826503 | 1326 | CHECK_SYMBOL (symbol); |
f35d5bad | 1327 | valcontents = SYMBOL_VALUE (symbol); |
7921925c JB |
1328 | |
1329 | /* For a built-in buffer-local variable, get the default value | |
1330 | rather than letting do_symval_forwarding get the current value. */ | |
e9ebc175 | 1331 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1332 | { |
999b32fd | 1333 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 GM |
1334 | if (PER_BUFFER_IDX (offset) != 0) |
1335 | return PER_BUFFER_DEFAULT (offset); | |
7921925c JB |
1336 | } |
1337 | ||
1338 | /* Handle user-created local variables. */ | |
e9ebc175 KH |
1339 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1340 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c JB |
1341 | { |
1342 | /* If var is set up for a buffer that lacks a local value for it, | |
1343 | the current value is nominally the default value. | |
42e975f0 | 1344 | But the `realvalue' slot may be more up to date, since |
7921925c JB |
1345 | ordinary setq stores just that slot. So use that. */ |
1346 | Lisp_Object current_alist_element, alist_element_car; | |
1347 | current_alist_element | |
7539e11f KR |
1348 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
1349 | alist_element_car = XCAR (current_alist_element); | |
7921925c | 1350 | if (EQ (alist_element_car, current_alist_element)) |
b0c2d1c6 | 1351 | return do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue); |
7921925c | 1352 | else |
7539e11f | 1353 | return XCDR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
7921925c JB |
1354 | } |
1355 | /* For other variables, get the current value. */ | |
1356 | return do_symval_forwarding (valcontents); | |
1357 | } | |
1358 | ||
1359 | DEFUN ("default-boundp", Fdefault_boundp, Sdefault_boundp, 1, 1, 0, | |
8c1a1077 PJ |
1360 | doc: /* Return t if SYMBOL has a non-void default value. |
1361 | This is the value that is seen in buffers that do not have their own values | |
1362 | for this variable. */) | |
1363 | (symbol) | |
d9c2a0f2 | 1364 | Lisp_Object symbol; |
7921925c JB |
1365 | { |
1366 | register Lisp_Object value; | |
1367 | ||
d9c2a0f2 | 1368 | value = default_value (symbol); |
1bfcade3 | 1369 | return (EQ (value, Qunbound) ? Qnil : Qt); |
7921925c JB |
1370 | } |
1371 | ||
1372 | DEFUN ("default-value", Fdefault_value, Sdefault_value, 1, 1, 0, | |
8c1a1077 PJ |
1373 | doc: /* Return SYMBOL's default value. |
1374 | This is the value that is seen in buffers that do not have their own values | |
1375 | for this variable. The default value is meaningful for variables with | |
1376 | local bindings in certain buffers. */) | |
1377 | (symbol) | |
d9c2a0f2 | 1378 | Lisp_Object symbol; |
7921925c JB |
1379 | { |
1380 | register Lisp_Object value; | |
1381 | ||
d9c2a0f2 | 1382 | value = default_value (symbol); |
740ef0b5 KS |
1383 | if (!EQ (value, Qunbound)) |
1384 | return value; | |
1385 | ||
1386 | xsignal1 (Qvoid_variable, symbol); | |
7921925c JB |
1387 | } |
1388 | ||
1389 | DEFUN ("set-default", Fset_default, Sset_default, 2, 2, 0, | |
6e86a75d | 1390 | doc: /* Set SYMBOL's default value to VALUE. SYMBOL and VALUE are evaluated. |
8c1a1077 PJ |
1391 | The default value is seen in buffers that do not have their own values |
1392 | for this variable. */) | |
1393 | (symbol, value) | |
d9c2a0f2 | 1394 | Lisp_Object symbol, value; |
7921925c JB |
1395 | { |
1396 | register Lisp_Object valcontents, current_alist_element, alist_element_buffer; | |
1397 | ||
b7826503 | 1398 | CHECK_SYMBOL (symbol); |
f35d5bad | 1399 | valcontents = SYMBOL_VALUE (symbol); |
7921925c JB |
1400 | |
1401 | /* Handle variables like case-fold-search that have special slots | |
1402 | in the buffer. Make them work apparently like Lisp_Buffer_Local_Value | |
1403 | variables. */ | |
e9ebc175 | 1404 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1405 | { |
999b32fd | 1406 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 | 1407 | int idx = PER_BUFFER_IDX (offset); |
7921925c | 1408 | |
f6cd0527 | 1409 | PER_BUFFER_DEFAULT (offset) = value; |
984ef137 KH |
1410 | |
1411 | /* If this variable is not always local in all buffers, | |
1412 | set it in the buffers that don't nominally have a local value. */ | |
999b32fd | 1413 | if (idx > 0) |
7921925c | 1414 | { |
999b32fd | 1415 | struct buffer *b; |
bfb96cb7 | 1416 | |
7921925c | 1417 | for (b = all_buffers; b; b = b->next) |
f6cd0527 GM |
1418 | if (!PER_BUFFER_VALUE_P (b, idx)) |
1419 | PER_BUFFER_VALUE (b, offset) = value; | |
7921925c JB |
1420 | } |
1421 | return value; | |
1422 | } | |
1423 | ||
e9ebc175 KH |
1424 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1425 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 1426 | return Fset (symbol, value); |
7921925c | 1427 | |
42e975f0 | 1428 | /* Store new value into the DEFAULT-VALUE slot. */ |
f3fbd155 | 1429 | XSETCDR (XBUFFER_LOCAL_VALUE (valcontents)->cdr, value); |
7921925c | 1430 | |
42e975f0 | 1431 | /* If the default binding is now loaded, set the REALVALUE slot too. */ |
8d4afcac | 1432 | current_alist_element |
7539e11f | 1433 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
7921925c JB |
1434 | alist_element_buffer = Fcar (current_alist_element); |
1435 | if (EQ (alist_element_buffer, current_alist_element)) | |
7a283f36 GM |
1436 | store_symval_forwarding (symbol, |
1437 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue, | |
1438 | value, NULL); | |
7921925c JB |
1439 | |
1440 | return value; | |
1441 | } | |
1442 | ||
7a7df7ac | 1443 | DEFUN ("setq-default", Fsetq_default, Ssetq_default, 0, UNEVALLED, 0, |
8c1a1077 PJ |
1444 | doc: /* Set the default value of variable VAR to VALUE. |
1445 | VAR, the variable name, is literal (not evaluated); | |
bfb96cb7 | 1446 | VALUE is an expression: it is evaluated and its value returned. |
8c1a1077 PJ |
1447 | The default value of a variable is seen in buffers |
1448 | that do not have their own values for the variable. | |
1449 | ||
1450 | More generally, you can use multiple variables and values, as in | |
948d2995 JB |
1451 | (setq-default VAR VALUE VAR VALUE...) |
1452 | This sets each VAR's default value to the corresponding VALUE. | |
1453 | The VALUE for the Nth VAR can refer to the new default values | |
1454 | of previous VARs. | |
7a7df7ac | 1455 | usage: (setq-default [VAR VALUE...]) */) |
8c1a1077 | 1456 | (args) |
7921925c JB |
1457 | Lisp_Object args; |
1458 | { | |
1459 | register Lisp_Object args_left; | |
d9c2a0f2 | 1460 | register Lisp_Object val, symbol; |
7921925c JB |
1461 | struct gcpro gcpro1; |
1462 | ||
a33ef3ab | 1463 | if (NILP (args)) |
7921925c JB |
1464 | return Qnil; |
1465 | ||
1466 | args_left = args; | |
1467 | GCPRO1 (args); | |
1468 | ||
1469 | do | |
1470 | { | |
1471 | val = Feval (Fcar (Fcdr (args_left))); | |
d2fde41d | 1472 | symbol = XCAR (args_left); |
d9c2a0f2 | 1473 | Fset_default (symbol, val); |
d2fde41d | 1474 | args_left = Fcdr (XCDR (args_left)); |
7921925c | 1475 | } |
a33ef3ab | 1476 | while (!NILP (args_left)); |
7921925c JB |
1477 | |
1478 | UNGCPRO; | |
1479 | return val; | |
1480 | } | |
1481 | \f | |
a5ca2b75 JB |
1482 | /* Lisp functions for creating and removing buffer-local variables. */ |
1483 | ||
7921925c | 1484 | DEFUN ("make-variable-buffer-local", Fmake_variable_buffer_local, Smake_variable_buffer_local, |
8c1a1077 PJ |
1485 | 1, 1, "vMake Variable Buffer Local: ", |
1486 | doc: /* Make VARIABLE become buffer-local whenever it is set. | |
1487 | At any time, the value for the current buffer is in effect, | |
1488 | unless the variable has never been set in this buffer, | |
1489 | in which case the default value is in effect. | |
1490 | Note that binding the variable with `let', or setting it while | |
1491 | a `let'-style binding made in this buffer is in effect, | |
bfb96cb7 | 1492 | does not make the variable buffer-local. Return VARIABLE. |
8c1a1077 | 1493 | |
a9908653 RS |
1494 | In most cases it is better to use `make-local-variable', |
1495 | which makes a variable local in just one buffer. | |
1496 | ||
8c1a1077 PJ |
1497 | The function `default-value' gets the default value and `set-default' sets it. */) |
1498 | (variable) | |
d9c2a0f2 | 1499 | register Lisp_Object variable; |
7921925c | 1500 | { |
8d4afcac | 1501 | register Lisp_Object tem, valcontents, newval; |
7921925c | 1502 | |
b7826503 | 1503 | CHECK_SYMBOL (variable); |
14970b45 | 1504 | variable = indirect_variable (variable); |
7921925c | 1505 | |
f35d5bad | 1506 | valcontents = SYMBOL_VALUE (variable); |
d9c2a0f2 | 1507 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents)) |
d5db4077 | 1508 | error ("Symbol %s may not be buffer-local", SDATA (SYMBOL_NAME (variable))); |
7921925c | 1509 | |
e9ebc175 | 1510 | if (BUFFER_LOCAL_VALUEP (valcontents) || BUFFER_OBJFWDP (valcontents)) |
d9c2a0f2 | 1511 | return variable; |
e9ebc175 | 1512 | if (SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c | 1513 | { |
f35d5bad | 1514 | XMISCTYPE (SYMBOL_VALUE (variable)) = Lisp_Misc_Buffer_Local_Value; |
d9c2a0f2 | 1515 | return variable; |
7921925c JB |
1516 | } |
1517 | if (EQ (valcontents, Qunbound)) | |
f35d5bad | 1518 | SET_SYMBOL_VALUE (variable, Qnil); |
d9c2a0f2 | 1519 | tem = Fcons (Qnil, Fsymbol_value (variable)); |
f3fbd155 | 1520 | XSETCAR (tem, tem); |
8d4afcac | 1521 | newval = allocate_misc (); |
324a6eef | 1522 | XMISCTYPE (newval) = Lisp_Misc_Buffer_Local_Value; |
f35d5bad | 1523 | XBUFFER_LOCAL_VALUE (newval)->realvalue = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1524 | XBUFFER_LOCAL_VALUE (newval)->buffer = Fcurrent_buffer (); |
1525 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
42e975f0 | 1526 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; |
b0c2d1c6 RS |
1527 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; |
1528 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 0; | |
1529 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
f35d5bad | 1530 | SET_SYMBOL_VALUE (variable, newval); |
d9c2a0f2 | 1531 | return variable; |
7921925c JB |
1532 | } |
1533 | ||
1534 | DEFUN ("make-local-variable", Fmake_local_variable, Smake_local_variable, | |
8c1a1077 PJ |
1535 | 1, 1, "vMake Local Variable: ", |
1536 | doc: /* Make VARIABLE have a separate value in the current buffer. | |
1537 | Other buffers will continue to share a common default value. | |
1538 | \(The buffer-local value of VARIABLE starts out as the same value | |
1539 | VARIABLE previously had. If VARIABLE was void, it remains void.\) | |
a9908653 | 1540 | Return VARIABLE. |
8c1a1077 PJ |
1541 | |
1542 | If the variable is already arranged to become local when set, | |
1543 | this function causes a local value to exist for this buffer, | |
1544 | just as setting the variable would do. | |
1545 | ||
1546 | This function returns VARIABLE, and therefore | |
1547 | (set (make-local-variable 'VARIABLE) VALUE-EXP) | |
1548 | works. | |
1549 | ||
a9908653 RS |
1550 | See also `make-variable-buffer-local'. |
1551 | ||
8c1a1077 | 1552 | Do not use `make-local-variable' to make a hook variable buffer-local. |
515f3f25 | 1553 | Instead, use `add-hook' and specify t for the LOCAL argument. */) |
8c1a1077 | 1554 | (variable) |
d9c2a0f2 | 1555 | register Lisp_Object variable; |
7921925c JB |
1556 | { |
1557 | register Lisp_Object tem, valcontents; | |
1558 | ||
b7826503 | 1559 | CHECK_SYMBOL (variable); |
14970b45 | 1560 | variable = indirect_variable (variable); |
7921925c | 1561 | |
f35d5bad | 1562 | valcontents = SYMBOL_VALUE (variable); |
d9c2a0f2 | 1563 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents)) |
d5db4077 | 1564 | error ("Symbol %s may not be buffer-local", SDATA (SYMBOL_NAME (variable))); |
7921925c | 1565 | |
e9ebc175 | 1566 | if (BUFFER_LOCAL_VALUEP (valcontents) || BUFFER_OBJFWDP (valcontents)) |
7921925c | 1567 | { |
d9c2a0f2 | 1568 | tem = Fboundp (variable); |
7403b5c8 | 1569 | |
7921925c JB |
1570 | /* Make sure the symbol has a local value in this particular buffer, |
1571 | by setting it to the same value it already has. */ | |
d9c2a0f2 EN |
1572 | Fset (variable, (EQ (tem, Qt) ? Fsymbol_value (variable) : Qunbound)); |
1573 | return variable; | |
7921925c | 1574 | } |
42e975f0 | 1575 | /* Make sure symbol is set up to hold per-buffer values. */ |
e9ebc175 | 1576 | if (!SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c | 1577 | { |
8d4afcac | 1578 | Lisp_Object newval; |
7921925c | 1579 | tem = Fcons (Qnil, do_symval_forwarding (valcontents)); |
f3fbd155 | 1580 | XSETCAR (tem, tem); |
8d4afcac | 1581 | newval = allocate_misc (); |
324a6eef | 1582 | XMISCTYPE (newval) = Lisp_Misc_Some_Buffer_Local_Value; |
f35d5bad | 1583 | XBUFFER_LOCAL_VALUE (newval)->realvalue = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1584 | XBUFFER_LOCAL_VALUE (newval)->buffer = Qnil; |
1585 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
1586 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; | |
1587 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; | |
1588 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 0; | |
1589 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
f35d5bad | 1590 | SET_SYMBOL_VALUE (variable, newval);; |
7921925c | 1591 | } |
42e975f0 | 1592 | /* Make sure this buffer has its own value of symbol. */ |
d9c2a0f2 | 1593 | tem = Fassq (variable, current_buffer->local_var_alist); |
a33ef3ab | 1594 | if (NILP (tem)) |
7921925c | 1595 | { |
a5d004a1 RS |
1596 | /* Swap out any local binding for some other buffer, and make |
1597 | sure the current value is permanently recorded, if it's the | |
1598 | default value. */ | |
d9c2a0f2 | 1599 | find_symbol_value (variable); |
a5d004a1 | 1600 | |
7921925c | 1601 | current_buffer->local_var_alist |
f35d5bad | 1602 | = Fcons (Fcons (variable, XCDR (XBUFFER_LOCAL_VALUE (SYMBOL_VALUE (variable))->cdr)), |
7921925c JB |
1603 | current_buffer->local_var_alist); |
1604 | ||
1605 | /* Make sure symbol does not think it is set up for this buffer; | |
42e975f0 | 1606 | force it to look once again for this buffer's value. */ |
7921925c | 1607 | { |
8d4afcac | 1608 | Lisp_Object *pvalbuf; |
a5d004a1 | 1609 | |
f35d5bad | 1610 | valcontents = SYMBOL_VALUE (variable); |
a5d004a1 | 1611 | |
b0c2d1c6 | 1612 | pvalbuf = &XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
8d4afcac KH |
1613 | if (current_buffer == XBUFFER (*pvalbuf)) |
1614 | *pvalbuf = Qnil; | |
b0c2d1c6 | 1615 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; |
7921925c | 1616 | } |
7921925c | 1617 | } |
a5ca2b75 | 1618 | |
42e975f0 RS |
1619 | /* If the symbol forwards into a C variable, then load the binding |
1620 | for this buffer now. If C code modifies the variable before we | |
1621 | load the binding in, then that new value will clobber the default | |
1622 | binding the next time we unload it. */ | |
f35d5bad | 1623 | valcontents = XBUFFER_LOCAL_VALUE (SYMBOL_VALUE (variable))->realvalue; |
e9ebc175 | 1624 | if (INTFWDP (valcontents) || BOOLFWDP (valcontents) || OBJFWDP (valcontents)) |
f35d5bad | 1625 | swap_in_symval_forwarding (variable, SYMBOL_VALUE (variable)); |
a5ca2b75 | 1626 | |
d9c2a0f2 | 1627 | return variable; |
7921925c JB |
1628 | } |
1629 | ||
1630 | DEFUN ("kill-local-variable", Fkill_local_variable, Skill_local_variable, | |
8c1a1077 PJ |
1631 | 1, 1, "vKill Local Variable: ", |
1632 | doc: /* Make VARIABLE no longer have a separate value in the current buffer. | |
bfb96cb7 | 1633 | From now on the default value will apply in this buffer. Return VARIABLE. */) |
8c1a1077 | 1634 | (variable) |
d9c2a0f2 | 1635 | register Lisp_Object variable; |
7921925c JB |
1636 | { |
1637 | register Lisp_Object tem, valcontents; | |
1638 | ||
b7826503 | 1639 | CHECK_SYMBOL (variable); |
14970b45 | 1640 | variable = indirect_variable (variable); |
7921925c | 1641 | |
f35d5bad | 1642 | valcontents = SYMBOL_VALUE (variable); |
7921925c | 1643 | |
e9ebc175 | 1644 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1645 | { |
999b32fd | 1646 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 | 1647 | int idx = PER_BUFFER_IDX (offset); |
7921925c | 1648 | |
999b32fd | 1649 | if (idx > 0) |
7921925c | 1650 | { |
f6cd0527 GM |
1651 | SET_PER_BUFFER_VALUE_P (current_buffer, idx, 0); |
1652 | PER_BUFFER_VALUE (current_buffer, offset) | |
1653 | = PER_BUFFER_DEFAULT (offset); | |
7921925c | 1654 | } |
d9c2a0f2 | 1655 | return variable; |
7921925c JB |
1656 | } |
1657 | ||
e9ebc175 KH |
1658 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1659 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 1660 | return variable; |
7921925c | 1661 | |
42e975f0 | 1662 | /* Get rid of this buffer's alist element, if any. */ |
7921925c | 1663 | |
d9c2a0f2 | 1664 | tem = Fassq (variable, current_buffer->local_var_alist); |
a33ef3ab | 1665 | if (!NILP (tem)) |
8d4afcac KH |
1666 | current_buffer->local_var_alist |
1667 | = Fdelq (tem, current_buffer->local_var_alist); | |
7921925c | 1668 | |
42e975f0 RS |
1669 | /* If the symbol is set up with the current buffer's binding |
1670 | loaded, recompute its value. We have to do it now, or else | |
1671 | forwarded objects won't work right. */ | |
7921925c | 1672 | { |
999e6484 | 1673 | Lisp_Object *pvalbuf, buf; |
f35d5bad | 1674 | valcontents = SYMBOL_VALUE (variable); |
b0c2d1c6 | 1675 | pvalbuf = &XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
999e6484 SM |
1676 | XSETBUFFER (buf, current_buffer); |
1677 | if (EQ (buf, *pvalbuf)) | |
79c83e03 KH |
1678 | { |
1679 | *pvalbuf = Qnil; | |
b0c2d1c6 | 1680 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; |
978dd578 | 1681 | find_symbol_value (variable); |
79c83e03 | 1682 | } |
7921925c JB |
1683 | } |
1684 | ||
d9c2a0f2 | 1685 | return variable; |
7921925c | 1686 | } |
62476adc | 1687 | |
b0c2d1c6 RS |
1688 | /* Lisp functions for creating and removing buffer-local variables. */ |
1689 | ||
1690 | DEFUN ("make-variable-frame-local", Fmake_variable_frame_local, Smake_variable_frame_local, | |
8c1a1077 PJ |
1691 | 1, 1, "vMake Variable Frame Local: ", |
1692 | doc: /* Enable VARIABLE to have frame-local bindings. | |
4d4d36b1 RS |
1693 | This does not create any frame-local bindings for VARIABLE, |
1694 | it just makes them possible. | |
1695 | ||
1696 | A frame-local binding is actually a frame parameter value. | |
1697 | If a frame F has a value for the frame parameter named VARIABLE, | |
1698 | that also acts as a frame-local binding for VARIABLE in F-- | |
1699 | provided this function has been called to enable VARIABLE | |
1700 | to have frame-local bindings at all. | |
1701 | ||
1702 | The only way to create a frame-local binding for VARIABLE in a frame | |
1703 | is to set the VARIABLE frame parameter of that frame. See | |
1704 | `modify-frame-parameters' for how to set frame parameters. | |
1705 | ||
1706 | Buffer-local bindings take precedence over frame-local bindings. */) | |
8c1a1077 | 1707 | (variable) |
b0c2d1c6 RS |
1708 | register Lisp_Object variable; |
1709 | { | |
1710 | register Lisp_Object tem, valcontents, newval; | |
1711 | ||
b7826503 | 1712 | CHECK_SYMBOL (variable); |
14970b45 | 1713 | variable = indirect_variable (variable); |
b0c2d1c6 | 1714 | |
f35d5bad | 1715 | valcontents = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1716 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents) |
1717 | || BUFFER_OBJFWDP (valcontents)) | |
d5db4077 | 1718 | error ("Symbol %s may not be frame-local", SDATA (SYMBOL_NAME (variable))); |
b0c2d1c6 RS |
1719 | |
1720 | if (BUFFER_LOCAL_VALUEP (valcontents) | |
1721 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
42e975f0 RS |
1722 | { |
1723 | XBUFFER_LOCAL_VALUE (valcontents)->check_frame = 1; | |
1724 | return variable; | |
1725 | } | |
b0c2d1c6 RS |
1726 | |
1727 | if (EQ (valcontents, Qunbound)) | |
f35d5bad | 1728 | SET_SYMBOL_VALUE (variable, Qnil); |
b0c2d1c6 | 1729 | tem = Fcons (Qnil, Fsymbol_value (variable)); |
f3fbd155 | 1730 | XSETCAR (tem, tem); |
b0c2d1c6 RS |
1731 | newval = allocate_misc (); |
1732 | XMISCTYPE (newval) = Lisp_Misc_Some_Buffer_Local_Value; | |
f35d5bad | 1733 | XBUFFER_LOCAL_VALUE (newval)->realvalue = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1734 | XBUFFER_LOCAL_VALUE (newval)->buffer = Qnil; |
1735 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
1736 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; | |
1737 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; | |
1738 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 1; | |
1739 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
f35d5bad | 1740 | SET_SYMBOL_VALUE (variable, newval); |
b0c2d1c6 RS |
1741 | return variable; |
1742 | } | |
1743 | ||
62476adc | 1744 | DEFUN ("local-variable-p", Flocal_variable_p, Slocal_variable_p, |
8c1a1077 PJ |
1745 | 1, 2, 0, |
1746 | doc: /* Non-nil if VARIABLE has a local binding in buffer BUFFER. | |
1747 | BUFFER defaults to the current buffer. */) | |
1748 | (variable, buffer) | |
d9c2a0f2 | 1749 | register Lisp_Object variable, buffer; |
62476adc RS |
1750 | { |
1751 | Lisp_Object valcontents; | |
c48ead86 KH |
1752 | register struct buffer *buf; |
1753 | ||
1754 | if (NILP (buffer)) | |
1755 | buf = current_buffer; | |
1756 | else | |
1757 | { | |
b7826503 | 1758 | CHECK_BUFFER (buffer); |
c48ead86 KH |
1759 | buf = XBUFFER (buffer); |
1760 | } | |
62476adc | 1761 | |
b7826503 | 1762 | CHECK_SYMBOL (variable); |
14970b45 | 1763 | variable = indirect_variable (variable); |
62476adc | 1764 | |
f35d5bad | 1765 | valcontents = SYMBOL_VALUE (variable); |
c48ead86 | 1766 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1e5f16fa | 1767 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
c48ead86 KH |
1768 | { |
1769 | Lisp_Object tail, elt; | |
f35d5bad | 1770 | |
7539e11f | 1771 | for (tail = buf->local_var_alist; CONSP (tail); tail = XCDR (tail)) |
c48ead86 | 1772 | { |
7539e11f KR |
1773 | elt = XCAR (tail); |
1774 | if (EQ (variable, XCAR (elt))) | |
c48ead86 KH |
1775 | return Qt; |
1776 | } | |
1777 | } | |
1778 | if (BUFFER_OBJFWDP (valcontents)) | |
1779 | { | |
1780 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
f6cd0527 GM |
1781 | int idx = PER_BUFFER_IDX (offset); |
1782 | if (idx == -1 || PER_BUFFER_VALUE_P (buf, idx)) | |
c48ead86 KH |
1783 | return Qt; |
1784 | } | |
1785 | return Qnil; | |
62476adc | 1786 | } |
f4f04cee RS |
1787 | |
1788 | DEFUN ("local-variable-if-set-p", Flocal_variable_if_set_p, Slocal_variable_if_set_p, | |
8c1a1077 | 1789 | 1, 2, 0, |
1dc5ba01 LT |
1790 | doc: /* Non-nil if VARIABLE will be local in buffer BUFFER when set there. |
1791 | More precisely, this means that setting the variable \(with `set' or`setq'), | |
1792 | while it does not have a `let'-style binding that was made in BUFFER, | |
1793 | will produce a buffer local binding. See Info node | |
1794 | `(elisp)Creating Buffer-Local'. | |
8c1a1077 PJ |
1795 | BUFFER defaults to the current buffer. */) |
1796 | (variable, buffer) | |
d9c2a0f2 | 1797 | register Lisp_Object variable, buffer; |
f4f04cee RS |
1798 | { |
1799 | Lisp_Object valcontents; | |
1800 | register struct buffer *buf; | |
1801 | ||
1802 | if (NILP (buffer)) | |
1803 | buf = current_buffer; | |
1804 | else | |
1805 | { | |
b7826503 | 1806 | CHECK_BUFFER (buffer); |
f4f04cee RS |
1807 | buf = XBUFFER (buffer); |
1808 | } | |
1809 | ||
b7826503 | 1810 | CHECK_SYMBOL (variable); |
14970b45 | 1811 | variable = indirect_variable (variable); |
f4f04cee | 1812 | |
f35d5bad | 1813 | valcontents = SYMBOL_VALUE (variable); |
f4f04cee RS |
1814 | |
1815 | /* This means that make-variable-buffer-local was done. */ | |
1816 | if (BUFFER_LOCAL_VALUEP (valcontents)) | |
1817 | return Qt; | |
1818 | /* All these slots become local if they are set. */ | |
1819 | if (BUFFER_OBJFWDP (valcontents)) | |
1820 | return Qt; | |
1821 | if (SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
1822 | { | |
1823 | Lisp_Object tail, elt; | |
7539e11f | 1824 | for (tail = buf->local_var_alist; CONSP (tail); tail = XCDR (tail)) |
f4f04cee | 1825 | { |
7539e11f KR |
1826 | elt = XCAR (tail); |
1827 | if (EQ (variable, XCAR (elt))) | |
f4f04cee RS |
1828 | return Qt; |
1829 | } | |
1830 | } | |
1831 | return Qnil; | |
1832 | } | |
0a2546d4 RS |
1833 | |
1834 | DEFUN ("variable-binding-locus", Fvariable_binding_locus, Svariable_binding_locus, | |
1835 | 1, 1, 0, | |
1836 | doc: /* Return a value indicating where VARIABLE's current binding comes from. | |
1837 | If the current binding is buffer-local, the value is the current buffer. | |
1838 | If the current binding is frame-local, the value is the selected frame. | |
1839 | If the current binding is global (the default), the value is nil. */) | |
1840 | (variable) | |
1841 | register Lisp_Object variable; | |
1842 | { | |
1843 | Lisp_Object valcontents; | |
1844 | ||
1845 | CHECK_SYMBOL (variable); | |
1846 | variable = indirect_variable (variable); | |
1847 | ||
1848 | /* Make sure the current binding is actually swapped in. */ | |
1849 | find_symbol_value (variable); | |
1850 | ||
1851 | valcontents = XSYMBOL (variable)->value; | |
1852 | ||
1853 | if (BUFFER_LOCAL_VALUEP (valcontents) | |
1854 | || SOME_BUFFER_LOCAL_VALUEP (valcontents) | |
1855 | || BUFFER_OBJFWDP (valcontents)) | |
1856 | { | |
1857 | /* For a local variable, record both the symbol and which | |
1858 | buffer's or frame's value we are saving. */ | |
1859 | if (!NILP (Flocal_variable_p (variable, Qnil))) | |
1860 | return Fcurrent_buffer (); | |
1861 | else if (!BUFFER_OBJFWDP (valcontents) | |
1862 | && XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame) | |
1863 | return XBUFFER_LOCAL_VALUE (valcontents)->frame; | |
1864 | } | |
1865 | ||
1866 | return Qnil; | |
1867 | } | |
2a42d440 | 1868 | |
c40bb1ba KL |
1869 | /* This code is disabled now that we use the selected frame to return |
1870 | keyboard-local-values. */ | |
1871 | #if 0 | |
6ed8eeff | 1872 | extern struct terminal *get_terminal P_ ((Lisp_Object display, int)); |
2a42d440 KL |
1873 | |
1874 | DEFUN ("terminal-local-value", Fterminal_local_value, Sterminal_local_value, 2, 2, 0, | |
6ed8eeff | 1875 | doc: /* Return the terminal-local value of SYMBOL on TERMINAL. |
2a42d440 KL |
1876 | If SYMBOL is not a terminal-local variable, then return its normal |
1877 | value, like `symbol-value'. | |
1878 | ||
6ed8eeff KL |
1879 | TERMINAL may be a terminal id, a frame, or nil (meaning the |
1880 | selected frame's terminal device). */) | |
1881 | (symbol, terminal) | |
2a42d440 | 1882 | Lisp_Object symbol; |
6ed8eeff | 1883 | Lisp_Object terminal; |
2a42d440 KL |
1884 | { |
1885 | Lisp_Object result; | |
6ed8eeff KL |
1886 | struct terminal *t = get_terminal (terminal, 1); |
1887 | push_kboard (t->kboard); | |
2a42d440 | 1888 | result = Fsymbol_value (symbol); |
256c9c3a | 1889 | pop_kboard (); |
2a42d440 KL |
1890 | return result; |
1891 | } | |
1892 | ||
1893 | DEFUN ("set-terminal-local-value", Fset_terminal_local_value, Sset_terminal_local_value, 3, 3, 0, | |
6ed8eeff | 1894 | doc: /* Set the terminal-local binding of SYMBOL on TERMINAL to VALUE. |
2a42d440 | 1895 | If VARIABLE is not a terminal-local variable, then set its normal |
7e59217d KL |
1896 | binding, like `set'. |
1897 | ||
6ed8eeff KL |
1898 | TERMINAL may be a terminal id, a frame, or nil (meaning the |
1899 | selected frame's terminal device). */) | |
1900 | (symbol, terminal, value) | |
2a42d440 | 1901 | Lisp_Object symbol; |
6ed8eeff | 1902 | Lisp_Object terminal; |
2a42d440 KL |
1903 | Lisp_Object value; |
1904 | { | |
1905 | Lisp_Object result; | |
6ed8eeff | 1906 | struct terminal *t = get_terminal (terminal, 1); |
256c9c3a | 1907 | push_kboard (d->kboard); |
2a42d440 | 1908 | result = Fset (symbol, value); |
256c9c3a | 1909 | pop_kboard (); |
2a42d440 KL |
1910 | return result; |
1911 | } | |
c40bb1ba | 1912 | #endif |
7921925c | 1913 | \f |
ffd56f97 JB |
1914 | /* Find the function at the end of a chain of symbol function indirections. */ |
1915 | ||
1916 | /* If OBJECT is a symbol, find the end of its function chain and | |
1917 | return the value found there. If OBJECT is not a symbol, just | |
1918 | return it. If there is a cycle in the function chain, signal a | |
1919 | cyclic-function-indirection error. | |
1920 | ||
1921 | This is like Findirect_function, except that it doesn't signal an | |
1922 | error if the chain ends up unbound. */ | |
1923 | Lisp_Object | |
a2932990 | 1924 | indirect_function (object) |
62476adc | 1925 | register Lisp_Object object; |
ffd56f97 | 1926 | { |
eb8c3be9 | 1927 | Lisp_Object tortoise, hare; |
ffd56f97 | 1928 | |
eb8c3be9 | 1929 | hare = tortoise = object; |
ffd56f97 JB |
1930 | |
1931 | for (;;) | |
1932 | { | |
e9ebc175 | 1933 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
1934 | break; |
1935 | hare = XSYMBOL (hare)->function; | |
e9ebc175 | 1936 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
1937 | break; |
1938 | hare = XSYMBOL (hare)->function; | |
1939 | ||
eb8c3be9 | 1940 | tortoise = XSYMBOL (tortoise)->function; |
ffd56f97 | 1941 | |
eb8c3be9 | 1942 | if (EQ (hare, tortoise)) |
740ef0b5 | 1943 | xsignal1 (Qcyclic_function_indirection, object); |
ffd56f97 JB |
1944 | } |
1945 | ||
1946 | return hare; | |
1947 | } | |
1948 | ||
a7f96a35 | 1949 | DEFUN ("indirect-function", Findirect_function, Sindirect_function, 1, 2, 0, |
8c1a1077 | 1950 | doc: /* Return the function at the end of OBJECT's function chain. |
0ddb0ae8 TTN |
1951 | If OBJECT is not a symbol, just return it. Otherwise, follow all |
1952 | function indirections to find the final function binding and return it. | |
1953 | If the final symbol in the chain is unbound, signal a void-function error. | |
1954 | Optional arg NOERROR non-nil means to return nil instead of signalling. | |
8c1a1077 PJ |
1955 | Signal a cyclic-function-indirection error if there is a loop in the |
1956 | function chain of symbols. */) | |
0ddb0ae8 | 1957 | (object, noerror) |
8c1a1077 | 1958 | register Lisp_Object object; |
0ddb0ae8 | 1959 | Lisp_Object noerror; |
ffd56f97 JB |
1960 | { |
1961 | Lisp_Object result; | |
1962 | ||
64de53d8 KS |
1963 | /* Optimize for no indirection. */ |
1964 | result = object; | |
1965 | if (SYMBOLP (result) && !EQ (result, Qunbound) | |
1966 | && (result = XSYMBOL (result)->function, SYMBOLP (result))) | |
1967 | result = indirect_function (result); | |
1968 | if (!EQ (result, Qunbound)) | |
1969 | return result; | |
ffd56f97 | 1970 | |
64de53d8 | 1971 | if (NILP (noerror)) |
740ef0b5 | 1972 | xsignal1 (Qvoid_function, object); |
64de53d8 KS |
1973 | |
1974 | return Qnil; | |
ffd56f97 JB |
1975 | } |
1976 | \f | |
7921925c JB |
1977 | /* Extract and set vector and string elements */ |
1978 | ||
1979 | DEFUN ("aref", Faref, Saref, 2, 2, 0, | |
8c1a1077 PJ |
1980 | doc: /* Return the element of ARRAY at index IDX. |
1981 | ARRAY may be a vector, a string, a char-table, a bool-vector, | |
1982 | or a byte-code object. IDX starts at 0. */) | |
1983 | (array, idx) | |
7921925c JB |
1984 | register Lisp_Object array; |
1985 | Lisp_Object idx; | |
1986 | { | |
1987 | register int idxval; | |
1988 | ||
b7826503 | 1989 | CHECK_NUMBER (idx); |
7921925c | 1990 | idxval = XINT (idx); |
e9ebc175 | 1991 | if (STRINGP (array)) |
7921925c | 1992 | { |
25638b07 RS |
1993 | int c, idxval_byte; |
1994 | ||
d5db4077 | 1995 | if (idxval < 0 || idxval >= SCHARS (array)) |
c24e4efe | 1996 | args_out_of_range (array, idx); |
25638b07 | 1997 | if (! STRING_MULTIBYTE (array)) |
d5db4077 | 1998 | return make_number ((unsigned char) SREF (array, idxval)); |
25638b07 RS |
1999 | idxval_byte = string_char_to_byte (array, idxval); |
2000 | ||
29f44a37 | 2001 | c = STRING_CHAR (SDATA (array) + idxval_byte, |
d5db4077 | 2002 | SBYTES (array) - idxval_byte); |
25638b07 | 2003 | return make_number (c); |
7921925c | 2004 | } |
4d276982 RS |
2005 | else if (BOOL_VECTOR_P (array)) |
2006 | { | |
2007 | int val; | |
4d276982 RS |
2008 | |
2009 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
2010 | args_out_of_range (array, idx); | |
2011 | ||
b9ed2177 AS |
2012 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR]; |
2013 | return (val & (1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR)) ? Qt : Qnil); | |
4d276982 RS |
2014 | } |
2015 | else if (CHAR_TABLE_P (array)) | |
2016 | { | |
2017 | Lisp_Object val; | |
2018 | ||
6bbd7a29 GM |
2019 | val = Qnil; |
2020 | ||
4d276982 RS |
2021 | if (idxval < 0) |
2022 | args_out_of_range (array, idx); | |
ab5c3f93 | 2023 | if (idxval < CHAR_TABLE_ORDINARY_SLOTS) |
8313c4e7 | 2024 | { |
256d566c KH |
2025 | if (! SINGLE_BYTE_CHAR_P (idxval)) |
2026 | args_out_of_range (array, idx); | |
39e16e51 | 2027 | /* For ASCII and 8-bit European characters, the element is |
3a6cf6bd | 2028 | stored in the top table. */ |
8313c4e7 | 2029 | val = XCHAR_TABLE (array)->contents[idxval]; |
256d566c KH |
2030 | if (NILP (val)) |
2031 | { | |
2032 | int default_slot | |
2033 | = (idxval < 0x80 ? CHAR_TABLE_DEFAULT_SLOT_ASCII | |
2034 | : idxval < 0xA0 ? CHAR_TABLE_DEFAULT_SLOT_8_BIT_CONTROL | |
2035 | : CHAR_TABLE_DEFAULT_SLOT_8_BIT_GRAPHIC); | |
2036 | val = XCHAR_TABLE (array)->contents[default_slot]; | |
2037 | } | |
8313c4e7 KH |
2038 | if (NILP (val)) |
2039 | val = XCHAR_TABLE (array)->defalt; | |
2040 | while (NILP (val)) /* Follow parents until we find some value. */ | |
2041 | { | |
2042 | array = XCHAR_TABLE (array)->parent; | |
2043 | if (NILP (array)) | |
2044 | return Qnil; | |
2045 | val = XCHAR_TABLE (array)->contents[idxval]; | |
2046 | if (NILP (val)) | |
2047 | val = XCHAR_TABLE (array)->defalt; | |
2048 | } | |
2049 | return val; | |
2050 | } | |
4d276982 RS |
2051 | else |
2052 | { | |
39e16e51 KH |
2053 | int code[4], i; |
2054 | Lisp_Object sub_table; | |
256d566c | 2055 | Lisp_Object current_default; |
8313c4e7 | 2056 | |
37309c9d | 2057 | SPLIT_CHAR (idxval, code[0], code[1], code[2]); |
e19c1eb4 KH |
2058 | if (code[1] < 32) code[1] = -1; |
2059 | else if (code[2] < 32) code[2] = -1; | |
2060 | ||
39e16e51 KH |
2061 | /* Here, the possible range of CODE[0] (== charset ID) is |
2062 | 128..MAX_CHARSET. Since the top level char table contains | |
2063 | data for multibyte characters after 256th element, we must | |
2064 | increment CODE[0] by 128 to get a correct index. */ | |
2065 | code[0] += 128; | |
2066 | code[3] = -1; /* anchor */ | |
4d276982 RS |
2067 | |
2068 | try_parent_char_table: | |
256d566c | 2069 | current_default = XCHAR_TABLE (array)->defalt; |
39e16e51 KH |
2070 | sub_table = array; |
2071 | for (i = 0; code[i] >= 0; i++) | |
4d276982 | 2072 | { |
39e16e51 KH |
2073 | val = XCHAR_TABLE (sub_table)->contents[code[i]]; |
2074 | if (SUB_CHAR_TABLE_P (val)) | |
256d566c KH |
2075 | { |
2076 | sub_table = val; | |
2077 | if (! NILP (XCHAR_TABLE (sub_table)->defalt)) | |
2078 | current_default = XCHAR_TABLE (sub_table)->defalt; | |
2079 | } | |
39e16e51 | 2080 | else |
8313c4e7 | 2081 | { |
39e16e51 | 2082 | if (NILP (val)) |
256d566c | 2083 | val = current_default; |
39e16e51 KH |
2084 | if (NILP (val)) |
2085 | { | |
2086 | array = XCHAR_TABLE (array)->parent; | |
2087 | if (!NILP (array)) | |
2088 | goto try_parent_char_table; | |
2089 | } | |
2090 | return val; | |
8313c4e7 | 2091 | } |
4d276982 | 2092 | } |
256d566c KH |
2093 | /* Reaching here means IDXVAL is a generic character in |
2094 | which each character or a group has independent value. | |
2095 | Essentially it's nonsense to get a value for such a | |
2096 | generic character, but for backward compatibility, we try | |
2097 | the default value and parent. */ | |
2098 | val = current_default; | |
8313c4e7 | 2099 | if (NILP (val)) |
4d276982 RS |
2100 | { |
2101 | array = XCHAR_TABLE (array)->parent; | |
39e16e51 KH |
2102 | if (!NILP (array)) |
2103 | goto try_parent_char_table; | |
4d276982 | 2104 | } |
4d276982 RS |
2105 | return val; |
2106 | } | |
4d276982 | 2107 | } |
7921925c | 2108 | else |
c24e4efe | 2109 | { |
6bbd7a29 | 2110 | int size = 0; |
7f358972 RS |
2111 | if (VECTORP (array)) |
2112 | size = XVECTOR (array)->size; | |
2113 | else if (COMPILEDP (array)) | |
2114 | size = XVECTOR (array)->size & PSEUDOVECTOR_SIZE_MASK; | |
2115 | else | |
2116 | wrong_type_argument (Qarrayp, array); | |
2117 | ||
2118 | if (idxval < 0 || idxval >= size) | |
c24e4efe KH |
2119 | args_out_of_range (array, idx); |
2120 | return XVECTOR (array)->contents[idxval]; | |
2121 | } | |
7921925c JB |
2122 | } |
2123 | ||
2124 | DEFUN ("aset", Faset, Saset, 3, 3, 0, | |
8c1a1077 | 2125 | doc: /* Store into the element of ARRAY at index IDX the value NEWELT. |
bfb96cb7 FP |
2126 | Return NEWELT. ARRAY may be a vector, a string, a char-table or a |
2127 | bool-vector. IDX starts at 0. */) | |
8c1a1077 | 2128 | (array, idx, newelt) |
7921925c JB |
2129 | register Lisp_Object array; |
2130 | Lisp_Object idx, newelt; | |
2131 | { | |
2132 | register int idxval; | |
2133 | ||
b7826503 | 2134 | CHECK_NUMBER (idx); |
7921925c | 2135 | idxval = XINT (idx); |
0c64a8cd | 2136 | CHECK_ARRAY (array, Qarrayp); |
7921925c JB |
2137 | CHECK_IMPURE (array); |
2138 | ||
e9ebc175 | 2139 | if (VECTORP (array)) |
c24e4efe KH |
2140 | { |
2141 | if (idxval < 0 || idxval >= XVECTOR (array)->size) | |
2142 | args_out_of_range (array, idx); | |
2143 | XVECTOR (array)->contents[idxval] = newelt; | |
2144 | } | |
4d276982 RS |
2145 | else if (BOOL_VECTOR_P (array)) |
2146 | { | |
2147 | int val; | |
4d276982 RS |
2148 | |
2149 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
2150 | args_out_of_range (array, idx); | |
2151 | ||
b9ed2177 | 2152 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR]; |
4d276982 RS |
2153 | |
2154 | if (! NILP (newelt)) | |
b9ed2177 | 2155 | val |= 1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR); |
4d276982 | 2156 | else |
b9ed2177 AS |
2157 | val &= ~(1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR)); |
2158 | XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR] = val; | |
4d276982 RS |
2159 | } |
2160 | else if (CHAR_TABLE_P (array)) | |
2161 | { | |
4d276982 RS |
2162 | if (idxval < 0) |
2163 | args_out_of_range (array, idx); | |
ab5c3f93 | 2164 | if (idxval < CHAR_TABLE_ORDINARY_SLOTS) |
256d566c KH |
2165 | { |
2166 | if (! SINGLE_BYTE_CHAR_P (idxval)) | |
2167 | args_out_of_range (array, idx); | |
2168 | XCHAR_TABLE (array)->contents[idxval] = newelt; | |
2169 | } | |
4d276982 RS |
2170 | else |
2171 | { | |
39e16e51 | 2172 | int code[4], i; |
8313c4e7 | 2173 | Lisp_Object val; |
4d276982 | 2174 | |
37309c9d | 2175 | SPLIT_CHAR (idxval, code[0], code[1], code[2]); |
e19c1eb4 KH |
2176 | if (code[1] < 32) code[1] = -1; |
2177 | else if (code[2] < 32) code[2] = -1; | |
2178 | ||
39e16e51 KH |
2179 | /* See the comment of the corresponding part in Faref. */ |
2180 | code[0] += 128; | |
2181 | code[3] = -1; /* anchor */ | |
2182 | for (i = 0; code[i + 1] >= 0; i++) | |
8313c4e7 | 2183 | { |
39e16e51 KH |
2184 | val = XCHAR_TABLE (array)->contents[code[i]]; |
2185 | if (SUB_CHAR_TABLE_P (val)) | |
8313c4e7 KH |
2186 | array = val; |
2187 | else | |
3c8fccc3 RS |
2188 | { |
2189 | Lisp_Object temp; | |
2190 | ||
2191 | /* VAL is a leaf. Create a sub char table with the | |
256d566c | 2192 | initial value VAL and look into it. */ |
3c8fccc3 | 2193 | |
256d566c | 2194 | temp = make_sub_char_table (val); |
3c8fccc3 RS |
2195 | XCHAR_TABLE (array)->contents[code[i]] = temp; |
2196 | array = temp; | |
2197 | } | |
8313c4e7 | 2198 | } |
39e16e51 | 2199 | XCHAR_TABLE (array)->contents[code[i]] = newelt; |
4d276982 | 2200 | } |
4d276982 | 2201 | } |
25638b07 RS |
2202 | else if (STRING_MULTIBYTE (array)) |
2203 | { | |
c6464167 | 2204 | int idxval_byte, prev_bytes, new_bytes, nbytes; |
3c9de1af | 2205 | unsigned char workbuf[MAX_MULTIBYTE_LENGTH], *p0 = workbuf, *p1; |
25638b07 | 2206 | |
d5db4077 | 2207 | if (idxval < 0 || idxval >= SCHARS (array)) |
25638b07 | 2208 | args_out_of_range (array, idx); |
b7826503 | 2209 | CHECK_NUMBER (newelt); |
25638b07 | 2210 | |
c6464167 MB |
2211 | nbytes = SBYTES (array); |
2212 | ||
25638b07 | 2213 | idxval_byte = string_char_to_byte (array, idxval); |
29f44a37 | 2214 | p1 = SDATA (array) + idxval_byte; |
3c9de1af KH |
2215 | PARSE_MULTIBYTE_SEQ (p1, nbytes - idxval_byte, prev_bytes); |
2216 | new_bytes = CHAR_STRING (XINT (newelt), p0); | |
2217 | if (prev_bytes != new_bytes) | |
2218 | { | |
2219 | /* We must relocate the string data. */ | |
d5db4077 | 2220 | int nchars = SCHARS (array); |
3c9de1af | 2221 | unsigned char *str; |
f1a87317 | 2222 | USE_SAFE_ALLOCA; |
3c9de1af | 2223 | |
f1a87317 | 2224 | SAFE_ALLOCA (str, unsigned char *, nbytes); |
d5db4077 | 2225 | bcopy (SDATA (array), str, nbytes); |
3c9de1af KH |
2226 | allocate_string_data (XSTRING (array), nchars, |
2227 | nbytes + new_bytes - prev_bytes); | |
d5db4077 KR |
2228 | bcopy (str, SDATA (array), idxval_byte); |
2229 | p1 = SDATA (array) + idxval_byte; | |
3c9de1af KH |
2230 | bcopy (str + idxval_byte + prev_bytes, p1 + new_bytes, |
2231 | nbytes - (idxval_byte + prev_bytes)); | |
233f3db6 | 2232 | SAFE_FREE (); |
3c9de1af KH |
2233 | clear_string_char_byte_cache (); |
2234 | } | |
2235 | while (new_bytes--) | |
2236 | *p1++ = *p0++; | |
25638b07 | 2237 | } |
7921925c JB |
2238 | else |
2239 | { | |
d5db4077 | 2240 | if (idxval < 0 || idxval >= SCHARS (array)) |
c24e4efe | 2241 | args_out_of_range (array, idx); |
b7826503 | 2242 | CHECK_NUMBER (newelt); |
3c9de1af KH |
2243 | |
2244 | if (XINT (newelt) < 0 || SINGLE_BYTE_CHAR_P (XINT (newelt))) | |
29f44a37 | 2245 | SSET (array, idxval, XINT (newelt)); |
3c9de1af KH |
2246 | else |
2247 | { | |
2248 | /* We must relocate the string data while converting it to | |
2249 | multibyte. */ | |
2250 | int idxval_byte, prev_bytes, new_bytes; | |
2251 | unsigned char workbuf[MAX_MULTIBYTE_LENGTH], *p0 = workbuf, *p1; | |
d5db4077 | 2252 | unsigned char *origstr = SDATA (array), *str; |
3c9de1af | 2253 | int nchars, nbytes; |
f1a87317 | 2254 | USE_SAFE_ALLOCA; |
3c9de1af | 2255 | |
d5db4077 | 2256 | nchars = SCHARS (array); |
3c9de1af KH |
2257 | nbytes = idxval_byte = count_size_as_multibyte (origstr, idxval); |
2258 | nbytes += count_size_as_multibyte (origstr + idxval, | |
2259 | nchars - idxval); | |
f1a87317 | 2260 | SAFE_ALLOCA (str, unsigned char *, nbytes); |
d5db4077 | 2261 | copy_text (SDATA (array), str, nchars, 0, 1); |
3c9de1af KH |
2262 | PARSE_MULTIBYTE_SEQ (str + idxval_byte, nbytes - idxval_byte, |
2263 | prev_bytes); | |
2264 | new_bytes = CHAR_STRING (XINT (newelt), p0); | |
2265 | allocate_string_data (XSTRING (array), nchars, | |
2266 | nbytes + new_bytes - prev_bytes); | |
d5db4077 KR |
2267 | bcopy (str, SDATA (array), idxval_byte); |
2268 | p1 = SDATA (array) + idxval_byte; | |
3c9de1af KH |
2269 | while (new_bytes--) |
2270 | *p1++ = *p0++; | |
2271 | bcopy (str + idxval_byte + prev_bytes, p1, | |
2272 | nbytes - (idxval_byte + prev_bytes)); | |
233f3db6 | 2273 | SAFE_FREE (); |
3c9de1af KH |
2274 | clear_string_char_byte_cache (); |
2275 | } | |
7921925c JB |
2276 | } |
2277 | ||
2278 | return newelt; | |
2279 | } | |
7921925c JB |
2280 | \f |
2281 | /* Arithmetic functions */ | |
2282 | ||
2283 | enum comparison { equal, notequal, less, grtr, less_or_equal, grtr_or_equal }; | |
2284 | ||
2285 | Lisp_Object | |
2286 | arithcompare (num1, num2, comparison) | |
2287 | Lisp_Object num1, num2; | |
2288 | enum comparison comparison; | |
2289 | { | |
6bbd7a29 | 2290 | double f1 = 0, f2 = 0; |
7921925c JB |
2291 | int floatp = 0; |
2292 | ||
b7826503 PJ |
2293 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1); |
2294 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2); | |
7921925c | 2295 | |
e9ebc175 | 2296 | if (FLOATP (num1) || FLOATP (num2)) |
7921925c JB |
2297 | { |
2298 | floatp = 1; | |
7539e11f KR |
2299 | f1 = (FLOATP (num1)) ? XFLOAT_DATA (num1) : XINT (num1); |
2300 | f2 = (FLOATP (num2)) ? XFLOAT_DATA (num2) : XINT (num2); | |
7921925c | 2301 | } |
7921925c JB |
2302 | |
2303 | switch (comparison) | |
2304 | { | |
2305 | case equal: | |
2306 | if (floatp ? f1 == f2 : XINT (num1) == XINT (num2)) | |
2307 | return Qt; | |
2308 | return Qnil; | |
2309 | ||
2310 | case notequal: | |
2311 | if (floatp ? f1 != f2 : XINT (num1) != XINT (num2)) | |
2312 | return Qt; | |
2313 | return Qnil; | |
2314 | ||
2315 | case less: | |
2316 | if (floatp ? f1 < f2 : XINT (num1) < XINT (num2)) | |
2317 | return Qt; | |
2318 | return Qnil; | |
2319 | ||
2320 | case less_or_equal: | |
2321 | if (floatp ? f1 <= f2 : XINT (num1) <= XINT (num2)) | |
2322 | return Qt; | |
2323 | return Qnil; | |
2324 | ||
2325 | case grtr: | |
2326 | if (floatp ? f1 > f2 : XINT (num1) > XINT (num2)) | |
2327 | return Qt; | |
2328 | return Qnil; | |
2329 | ||
2330 | case grtr_or_equal: | |
2331 | if (floatp ? f1 >= f2 : XINT (num1) >= XINT (num2)) | |
2332 | return Qt; | |
2333 | return Qnil; | |
25e40a4b JB |
2334 | |
2335 | default: | |
2336 | abort (); | |
7921925c JB |
2337 | } |
2338 | } | |
2339 | ||
2340 | DEFUN ("=", Feqlsign, Seqlsign, 2, 2, 0, | |
8c1a1077 PJ |
2341 | doc: /* Return t if two args, both numbers or markers, are equal. */) |
2342 | (num1, num2) | |
7921925c JB |
2343 | register Lisp_Object num1, num2; |
2344 | { | |
2345 | return arithcompare (num1, num2, equal); | |
2346 | } | |
2347 | ||
2348 | DEFUN ("<", Flss, Slss, 2, 2, 0, | |
8c1a1077 PJ |
2349 | doc: /* Return t if first arg is less than second arg. Both must be numbers or markers. */) |
2350 | (num1, num2) | |
7921925c JB |
2351 | register Lisp_Object num1, num2; |
2352 | { | |
2353 | return arithcompare (num1, num2, less); | |
2354 | } | |
2355 | ||
2356 | DEFUN (">", Fgtr, Sgtr, 2, 2, 0, | |
8c1a1077 PJ |
2357 | doc: /* Return t if first arg is greater than second arg. Both must be numbers or markers. */) |
2358 | (num1, num2) | |
7921925c JB |
2359 | register Lisp_Object num1, num2; |
2360 | { | |
2361 | return arithcompare (num1, num2, grtr); | |
2362 | } | |
2363 | ||
2364 | DEFUN ("<=", Fleq, Sleq, 2, 2, 0, | |
8c1a1077 PJ |
2365 | doc: /* Return t if first arg is less than or equal to second arg. |
2366 | Both must be numbers or markers. */) | |
2367 | (num1, num2) | |
7921925c JB |
2368 | register Lisp_Object num1, num2; |
2369 | { | |
2370 | return arithcompare (num1, num2, less_or_equal); | |
2371 | } | |
2372 | ||
2373 | DEFUN (">=", Fgeq, Sgeq, 2, 2, 0, | |
8c1a1077 PJ |
2374 | doc: /* Return t if first arg is greater than or equal to second arg. |
2375 | Both must be numbers or markers. */) | |
2376 | (num1, num2) | |
7921925c JB |
2377 | register Lisp_Object num1, num2; |
2378 | { | |
2379 | return arithcompare (num1, num2, grtr_or_equal); | |
2380 | } | |
2381 | ||
2382 | DEFUN ("/=", Fneq, Sneq, 2, 2, 0, | |
8c1a1077 PJ |
2383 | doc: /* Return t if first arg is not equal to second arg. Both must be numbers or markers. */) |
2384 | (num1, num2) | |
7921925c JB |
2385 | register Lisp_Object num1, num2; |
2386 | { | |
2387 | return arithcompare (num1, num2, notequal); | |
2388 | } | |
2389 | ||
8c1a1077 PJ |
2390 | DEFUN ("zerop", Fzerop, Szerop, 1, 1, 0, |
2391 | doc: /* Return t if NUMBER is zero. */) | |
2392 | (number) | |
d9c2a0f2 | 2393 | register Lisp_Object number; |
7921925c | 2394 | { |
b7826503 | 2395 | CHECK_NUMBER_OR_FLOAT (number); |
7921925c | 2396 | |
d9c2a0f2 | 2397 | if (FLOATP (number)) |
7921925c | 2398 | { |
7539e11f | 2399 | if (XFLOAT_DATA (number) == 0.0) |
7921925c JB |
2400 | return Qt; |
2401 | return Qnil; | |
2402 | } | |
7921925c | 2403 | |
d9c2a0f2 | 2404 | if (!XINT (number)) |
7921925c JB |
2405 | return Qt; |
2406 | return Qnil; | |
2407 | } | |
2408 | \f | |
34f4f6c6 | 2409 | /* Convert between long values and pairs of Lisp integers. */ |
51cf3e31 JB |
2410 | |
2411 | Lisp_Object | |
2412 | long_to_cons (i) | |
2413 | unsigned long i; | |
2414 | { | |
9bc7166b | 2415 | unsigned long top = i >> 16; |
51cf3e31 JB |
2416 | unsigned int bot = i & 0xFFFF; |
2417 | if (top == 0) | |
2418 | return make_number (bot); | |
b42cfa11 | 2419 | if (top == (unsigned long)-1 >> 16) |
51cf3e31 JB |
2420 | return Fcons (make_number (-1), make_number (bot)); |
2421 | return Fcons (make_number (top), make_number (bot)); | |
2422 | } | |
2423 | ||
2424 | unsigned long | |
2425 | cons_to_long (c) | |
2426 | Lisp_Object c; | |
2427 | { | |
878a80cc | 2428 | Lisp_Object top, bot; |
51cf3e31 JB |
2429 | if (INTEGERP (c)) |
2430 | return XINT (c); | |
7539e11f KR |
2431 | top = XCAR (c); |
2432 | bot = XCDR (c); | |
51cf3e31 | 2433 | if (CONSP (bot)) |
7539e11f | 2434 | bot = XCAR (bot); |
51cf3e31 JB |
2435 | return ((XINT (top) << 16) | XINT (bot)); |
2436 | } | |
2437 | \f | |
f2980264 | 2438 | DEFUN ("number-to-string", Fnumber_to_string, Snumber_to_string, 1, 1, 0, |
bfb96cb7 | 2439 | doc: /* Return the decimal representation of NUMBER as a string. |
8c1a1077 PJ |
2440 | Uses a minus sign if negative. |
2441 | NUMBER may be an integer or a floating point number. */) | |
2442 | (number) | |
d9c2a0f2 | 2443 | Lisp_Object number; |
7921925c | 2444 | { |
6030ce64 | 2445 | char buffer[VALBITS]; |
7921925c | 2446 | |
b7826503 | 2447 | CHECK_NUMBER_OR_FLOAT (number); |
7921925c | 2448 | |
d9c2a0f2 | 2449 | if (FLOATP (number)) |
7921925c JB |
2450 | { |
2451 | char pigbuf[350]; /* see comments in float_to_string */ | |
2452 | ||
7539e11f | 2453 | float_to_string (pigbuf, XFLOAT_DATA (number)); |
7403b5c8 | 2454 | return build_string (pigbuf); |
7921925c | 2455 | } |
7921925c | 2456 | |
e6c82a8d | 2457 | if (sizeof (int) == sizeof (EMACS_INT)) |
d9c2a0f2 | 2458 | sprintf (buffer, "%d", XINT (number)); |
e6c82a8d | 2459 | else if (sizeof (long) == sizeof (EMACS_INT)) |
dd8daec5 | 2460 | sprintf (buffer, "%ld", (long) XINT (number)); |
e6c82a8d RS |
2461 | else |
2462 | abort (); | |
7921925c JB |
2463 | return build_string (buffer); |
2464 | } | |
2465 | ||
3883fbeb RS |
2466 | INLINE static int |
2467 | digit_to_number (character, base) | |
2468 | int character, base; | |
2469 | { | |
2470 | int digit; | |
2471 | ||
2472 | if (character >= '0' && character <= '9') | |
2473 | digit = character - '0'; | |
2474 | else if (character >= 'a' && character <= 'z') | |
2475 | digit = character - 'a' + 10; | |
2476 | else if (character >= 'A' && character <= 'Z') | |
2477 | digit = character - 'A' + 10; | |
2478 | else | |
2479 | return -1; | |
2480 | ||
2481 | if (digit >= base) | |
2482 | return -1; | |
2483 | else | |
2484 | return digit; | |
bfb96cb7 | 2485 | } |
3883fbeb RS |
2486 | |
2487 | DEFUN ("string-to-number", Fstring_to_number, Sstring_to_number, 1, 2, 0, | |
558ee900 | 2488 | doc: /* Parse STRING as a decimal number and return the number. |
8c1a1077 PJ |
2489 | This parses both integers and floating point numbers. |
2490 | It ignores leading spaces and tabs. | |
2491 | ||
2492 | If BASE, interpret STRING as a number in that base. If BASE isn't | |
2493 | present, base 10 is used. BASE must be between 2 and 16 (inclusive). | |
2494 | If the base used is not 10, floating point is not recognized. */) | |
2495 | (string, base) | |
3883fbeb | 2496 | register Lisp_Object string, base; |
7921925c | 2497 | { |
3883fbeb | 2498 | register unsigned char *p; |
342858a5 GM |
2499 | register int b; |
2500 | int sign = 1; | |
2501 | Lisp_Object val; | |
25e40a4b | 2502 | |
b7826503 | 2503 | CHECK_STRING (string); |
7921925c | 2504 | |
3883fbeb RS |
2505 | if (NILP (base)) |
2506 | b = 10; | |
2507 | else | |
2508 | { | |
b7826503 | 2509 | CHECK_NUMBER (base); |
3883fbeb RS |
2510 | b = XINT (base); |
2511 | if (b < 2 || b > 16) | |
740ef0b5 | 2512 | xsignal1 (Qargs_out_of_range, base); |
3883fbeb RS |
2513 | } |
2514 | ||
25e40a4b JB |
2515 | /* Skip any whitespace at the front of the number. Some versions of |
2516 | atoi do this anyway, so we might as well make Emacs lisp consistent. */ | |
d5db4077 | 2517 | p = SDATA (string); |
0a3e4d65 | 2518 | while (*p == ' ' || *p == '\t') |
25e40a4b JB |
2519 | p++; |
2520 | ||
3883fbeb RS |
2521 | if (*p == '-') |
2522 | { | |
342858a5 | 2523 | sign = -1; |
3883fbeb RS |
2524 | p++; |
2525 | } | |
2526 | else if (*p == '+') | |
2527 | p++; | |
bfb96cb7 | 2528 | |
8e36ae7f | 2529 | if (isfloat_string (p) && b == 10) |
342858a5 GM |
2530 | val = make_float (sign * atof (p)); |
2531 | else | |
3883fbeb | 2532 | { |
342858a5 GM |
2533 | double v = 0; |
2534 | ||
2535 | while (1) | |
2536 | { | |
2537 | int digit = digit_to_number (*p++, b); | |
2538 | if (digit < 0) | |
2539 | break; | |
2540 | v = v * b + digit; | |
2541 | } | |
2542 | ||
cb938d46 | 2543 | val = make_fixnum_or_float (sign * v); |
3883fbeb | 2544 | } |
342858a5 GM |
2545 | |
2546 | return val; | |
7921925c | 2547 | } |
3883fbeb | 2548 | |
7403b5c8 | 2549 | \f |
7921925c | 2550 | enum arithop |
7a283f36 GM |
2551 | { |
2552 | Aadd, | |
2553 | Asub, | |
2554 | Amult, | |
2555 | Adiv, | |
2556 | Alogand, | |
2557 | Alogior, | |
2558 | Alogxor, | |
2559 | Amax, | |
2560 | Amin | |
2561 | }; | |
2562 | ||
2563 | static Lisp_Object float_arith_driver P_ ((double, int, enum arithop, | |
2564 | int, Lisp_Object *)); | |
ad8d56b9 | 2565 | extern Lisp_Object fmod_float (); |
b06faa91 | 2566 | |
7921925c | 2567 | Lisp_Object |
87fbf902 | 2568 | arith_driver (code, nargs, args) |
7921925c JB |
2569 | enum arithop code; |
2570 | int nargs; | |
2571 | register Lisp_Object *args; | |
2572 | { | |
2573 | register Lisp_Object val; | |
2574 | register int argnum; | |
7a283f36 | 2575 | register EMACS_INT accum = 0; |
5260234d | 2576 | register EMACS_INT next; |
7921925c | 2577 | |
0220c518 | 2578 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2579 | { |
2580 | case Alogior: | |
2581 | case Alogxor: | |
2582 | case Aadd: | |
2583 | case Asub: | |
7a283f36 GM |
2584 | accum = 0; |
2585 | break; | |
7921925c | 2586 | case Amult: |
7a283f36 GM |
2587 | accum = 1; |
2588 | break; | |
7921925c | 2589 | case Alogand: |
7a283f36 GM |
2590 | accum = -1; |
2591 | break; | |
2592 | default: | |
2593 | break; | |
7921925c JB |
2594 | } |
2595 | ||
2596 | for (argnum = 0; argnum < nargs; argnum++) | |
2597 | { | |
7a283f36 GM |
2598 | /* Using args[argnum] as argument to CHECK_NUMBER_... */ |
2599 | val = args[argnum]; | |
b7826503 | 2600 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val); |
7921925c | 2601 | |
7a283f36 GM |
2602 | if (FLOATP (val)) |
2603 | return float_arith_driver ((double) accum, argnum, code, | |
2604 | nargs, args); | |
2605 | args[argnum] = val; | |
7921925c | 2606 | next = XINT (args[argnum]); |
0220c518 | 2607 | switch (SWITCH_ENUM_CAST (code)) |
7921925c | 2608 | { |
7a283f36 GM |
2609 | case Aadd: |
2610 | accum += next; | |
2611 | break; | |
7921925c | 2612 | case Asub: |
e64981da | 2613 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c | 2614 | break; |
7a283f36 GM |
2615 | case Amult: |
2616 | accum *= next; | |
2617 | break; | |
7921925c | 2618 | case Adiv: |
7a283f36 GM |
2619 | if (!argnum) |
2620 | accum = next; | |
87fbf902 RS |
2621 | else |
2622 | { | |
2623 | if (next == 0) | |
740ef0b5 | 2624 | xsignal0 (Qarith_error); |
87fbf902 RS |
2625 | accum /= next; |
2626 | } | |
7921925c | 2627 | break; |
7a283f36 GM |
2628 | case Alogand: |
2629 | accum &= next; | |
2630 | break; | |
2631 | case Alogior: | |
2632 | accum |= next; | |
2633 | break; | |
2634 | case Alogxor: | |
2635 | accum ^= next; | |
2636 | break; | |
2637 | case Amax: | |
2638 | if (!argnum || next > accum) | |
2639 | accum = next; | |
2640 | break; | |
2641 | case Amin: | |
2642 | if (!argnum || next < accum) | |
2643 | accum = next; | |
2644 | break; | |
7921925c JB |
2645 | } |
2646 | } | |
2647 | ||
f187f1f7 | 2648 | XSETINT (val, accum); |
7921925c JB |
2649 | return val; |
2650 | } | |
2651 | ||
1a2f2d33 KH |
2652 | #undef isnan |
2653 | #define isnan(x) ((x) != (x)) | |
2654 | ||
7a283f36 | 2655 | static Lisp_Object |
7921925c JB |
2656 | float_arith_driver (accum, argnum, code, nargs, args) |
2657 | double accum; | |
2658 | register int argnum; | |
2659 | enum arithop code; | |
2660 | int nargs; | |
2661 | register Lisp_Object *args; | |
2662 | { | |
2663 | register Lisp_Object val; | |
2664 | double next; | |
7403b5c8 | 2665 | |
7921925c JB |
2666 | for (; argnum < nargs; argnum++) |
2667 | { | |
2668 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ | |
b7826503 | 2669 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val); |
7921925c | 2670 | |
e9ebc175 | 2671 | if (FLOATP (val)) |
7921925c | 2672 | { |
7539e11f | 2673 | next = XFLOAT_DATA (val); |
7921925c JB |
2674 | } |
2675 | else | |
2676 | { | |
2677 | args[argnum] = val; /* runs into a compiler bug. */ | |
2678 | next = XINT (args[argnum]); | |
2679 | } | |
0220c518 | 2680 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2681 | { |
2682 | case Aadd: | |
2683 | accum += next; | |
2684 | break; | |
2685 | case Asub: | |
e64981da | 2686 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c JB |
2687 | break; |
2688 | case Amult: | |
2689 | accum *= next; | |
2690 | break; | |
2691 | case Adiv: | |
2692 | if (!argnum) | |
2693 | accum = next; | |
2694 | else | |
87fbf902 | 2695 | { |
ad8d56b9 | 2696 | if (! IEEE_FLOATING_POINT && next == 0) |
740ef0b5 | 2697 | xsignal0 (Qarith_error); |
87fbf902 RS |
2698 | accum /= next; |
2699 | } | |
7921925c JB |
2700 | break; |
2701 | case Alogand: | |
2702 | case Alogior: | |
2703 | case Alogxor: | |
2704 | return wrong_type_argument (Qinteger_or_marker_p, val); | |
2705 | case Amax: | |
1a2f2d33 | 2706 | if (!argnum || isnan (next) || next > accum) |
7921925c JB |
2707 | accum = next; |
2708 | break; | |
2709 | case Amin: | |
1a2f2d33 | 2710 | if (!argnum || isnan (next) || next < accum) |
7921925c JB |
2711 | accum = next; |
2712 | break; | |
2713 | } | |
2714 | } | |
2715 | ||
2716 | return make_float (accum); | |
2717 | } | |
cc94f3b2 | 2718 | |
7921925c JB |
2719 | |
2720 | DEFUN ("+", Fplus, Splus, 0, MANY, 0, | |
8c1a1077 PJ |
2721 | doc: /* Return sum of any number of arguments, which are numbers or markers. |
2722 | usage: (+ &rest NUMBERS-OR-MARKERS) */) | |
2723 | (nargs, args) | |
7921925c JB |
2724 | int nargs; |
2725 | Lisp_Object *args; | |
2726 | { | |
2727 | return arith_driver (Aadd, nargs, args); | |
2728 | } | |
2729 | ||
2730 | DEFUN ("-", Fminus, Sminus, 0, MANY, 0, | |
558ee900 | 2731 | doc: /* Negate number or subtract numbers or markers and return the result. |
8c1a1077 | 2732 | With one arg, negates it. With more than one arg, |
f44fba9e | 2733 | subtracts all but the first from the first. |
8c1a1077 PJ |
2734 | usage: (- &optional NUMBER-OR-MARKER &rest MORE-NUMBERS-OR-MARKERS) */) |
2735 | (nargs, args) | |
7921925c JB |
2736 | int nargs; |
2737 | Lisp_Object *args; | |
2738 | { | |
2739 | return arith_driver (Asub, nargs, args); | |
2740 | } | |
2741 | ||
2742 | DEFUN ("*", Ftimes, Stimes, 0, MANY, 0, | |
be24eadf | 2743 | doc: /* Return product of any number of arguments, which are numbers or markers. |
8c1a1077 PJ |
2744 | usage: (* &rest NUMBERS-OR-MARKERS) */) |
2745 | (nargs, args) | |
7921925c JB |
2746 | int nargs; |
2747 | Lisp_Object *args; | |
2748 | { | |
2749 | return arith_driver (Amult, nargs, args); | |
2750 | } | |
2751 | ||
2752 | DEFUN ("/", Fquo, Squo, 2, MANY, 0, | |
be24eadf | 2753 | doc: /* Return first argument divided by all the remaining arguments. |
f44fba9e | 2754 | The arguments must be numbers or markers. |
8c1a1077 PJ |
2755 | usage: (/ DIVIDEND DIVISOR &rest DIVISORS) */) |
2756 | (nargs, args) | |
7921925c JB |
2757 | int nargs; |
2758 | Lisp_Object *args; | |
2759 | { | |
28712a21 | 2760 | int argnum; |
7ef98053 | 2761 | for (argnum = 2; argnum < nargs; argnum++) |
28712a21 JB |
2762 | if (FLOATP (args[argnum])) |
2763 | return float_arith_driver (0, 0, Adiv, nargs, args); | |
7921925c JB |
2764 | return arith_driver (Adiv, nargs, args); |
2765 | } | |
2766 | ||
2767 | DEFUN ("%", Frem, Srem, 2, 2, 0, | |
be24eadf | 2768 | doc: /* Return remainder of X divided by Y. |
8c1a1077 PJ |
2769 | Both must be integers or markers. */) |
2770 | (x, y) | |
d9c2a0f2 | 2771 | register Lisp_Object x, y; |
7921925c JB |
2772 | { |
2773 | Lisp_Object val; | |
2774 | ||
b7826503 PJ |
2775 | CHECK_NUMBER_COERCE_MARKER (x); |
2776 | CHECK_NUMBER_COERCE_MARKER (y); | |
7921925c | 2777 | |
d9c2a0f2 | 2778 | if (XFASTINT (y) == 0) |
740ef0b5 | 2779 | xsignal0 (Qarith_error); |
87fbf902 | 2780 | |
d9c2a0f2 | 2781 | XSETINT (val, XINT (x) % XINT (y)); |
7921925c JB |
2782 | return val; |
2783 | } | |
2784 | ||
1d66a5fa KH |
2785 | #ifndef HAVE_FMOD |
2786 | double | |
2787 | fmod (f1, f2) | |
2788 | double f1, f2; | |
2789 | { | |
bc1c9d7e PE |
2790 | double r = f1; |
2791 | ||
fa43b1e8 KH |
2792 | if (f2 < 0.0) |
2793 | f2 = -f2; | |
bc1c9d7e PE |
2794 | |
2795 | /* If the magnitude of the result exceeds that of the divisor, or | |
2796 | the sign of the result does not agree with that of the dividend, | |
2797 | iterate with the reduced value. This does not yield a | |
2798 | particularly accurate result, but at least it will be in the | |
2799 | range promised by fmod. */ | |
2800 | do | |
2801 | r -= f2 * floor (r / f2); | |
2802 | while (f2 <= (r < 0 ? -r : r) || ((r < 0) != (f1 < 0) && ! isnan (r))); | |
2803 | ||
2804 | return r; | |
1d66a5fa KH |
2805 | } |
2806 | #endif /* ! HAVE_FMOD */ | |
2807 | ||
44fa9da5 | 2808 | DEFUN ("mod", Fmod, Smod, 2, 2, 0, |
be24eadf | 2809 | doc: /* Return X modulo Y. |
8c1a1077 PJ |
2810 | The result falls between zero (inclusive) and Y (exclusive). |
2811 | Both X and Y must be numbers or markers. */) | |
2812 | (x, y) | |
d9c2a0f2 | 2813 | register Lisp_Object x, y; |
44fa9da5 PE |
2814 | { |
2815 | Lisp_Object val; | |
5260234d | 2816 | EMACS_INT i1, i2; |
44fa9da5 | 2817 | |
b7826503 PJ |
2818 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (x); |
2819 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (y); | |
44fa9da5 | 2820 | |
d9c2a0f2 | 2821 | if (FLOATP (x) || FLOATP (y)) |
ad8d56b9 PE |
2822 | return fmod_float (x, y); |
2823 | ||
d9c2a0f2 EN |
2824 | i1 = XINT (x); |
2825 | i2 = XINT (y); | |
44fa9da5 PE |
2826 | |
2827 | if (i2 == 0) | |
740ef0b5 | 2828 | xsignal0 (Qarith_error); |
7403b5c8 | 2829 | |
44fa9da5 PE |
2830 | i1 %= i2; |
2831 | ||
2832 | /* If the "remainder" comes out with the wrong sign, fix it. */ | |
04f7ec69 | 2833 | if (i2 < 0 ? i1 > 0 : i1 < 0) |
44fa9da5 PE |
2834 | i1 += i2; |
2835 | ||
f187f1f7 | 2836 | XSETINT (val, i1); |
44fa9da5 PE |
2837 | return val; |
2838 | } | |
2839 | ||
7921925c | 2840 | DEFUN ("max", Fmax, Smax, 1, MANY, 0, |
8c1a1077 | 2841 | doc: /* Return largest of all the arguments (which must be numbers or markers). |
f44fba9e | 2842 | The value is always a number; markers are converted to numbers. |
8c1a1077 PJ |
2843 | usage: (max NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
2844 | (nargs, args) | |
7921925c JB |
2845 | int nargs; |
2846 | Lisp_Object *args; | |
2847 | { | |
2848 | return arith_driver (Amax, nargs, args); | |
2849 | } | |
2850 | ||
2851 | DEFUN ("min", Fmin, Smin, 1, MANY, 0, | |
8c1a1077 | 2852 | doc: /* Return smallest of all the arguments (which must be numbers or markers). |
f44fba9e | 2853 | The value is always a number; markers are converted to numbers. |
8c1a1077 PJ |
2854 | usage: (min NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
2855 | (nargs, args) | |
7921925c JB |
2856 | int nargs; |
2857 | Lisp_Object *args; | |
2858 | { | |
2859 | return arith_driver (Amin, nargs, args); | |
2860 | } | |
2861 | ||
2862 | DEFUN ("logand", Flogand, Slogand, 0, MANY, 0, | |
8c1a1077 | 2863 | doc: /* Return bitwise-and of all the arguments. |
f44fba9e | 2864 | Arguments may be integers, or markers converted to integers. |
8c1a1077 PJ |
2865 | usage: (logand &rest INTS-OR-MARKERS) */) |
2866 | (nargs, args) | |
7921925c JB |
2867 | int nargs; |
2868 | Lisp_Object *args; | |
2869 | { | |
2870 | return arith_driver (Alogand, nargs, args); | |
2871 | } | |
2872 | ||
2873 | DEFUN ("logior", Flogior, Slogior, 0, MANY, 0, | |
8c1a1077 | 2874 | doc: /* Return bitwise-or of all the arguments. |
f44fba9e | 2875 | Arguments may be integers, or markers converted to integers. |
8c1a1077 PJ |
2876 | usage: (logior &rest INTS-OR-MARKERS) */) |
2877 | (nargs, args) | |
7921925c JB |
2878 | int nargs; |
2879 | Lisp_Object *args; | |
2880 | { | |
2881 | return arith_driver (Alogior, nargs, args); | |
2882 | } | |
2883 | ||
2884 | DEFUN ("logxor", Flogxor, Slogxor, 0, MANY, 0, | |
8c1a1077 | 2885 | doc: /* Return bitwise-exclusive-or of all the arguments. |
f44fba9e | 2886 | Arguments may be integers, or markers converted to integers. |
31fb1b2c | 2887 | usage: (logxor &rest INTS-OR-MARKERS) */) |
8c1a1077 | 2888 | (nargs, args) |
7921925c JB |
2889 | int nargs; |
2890 | Lisp_Object *args; | |
2891 | { | |
2892 | return arith_driver (Alogxor, nargs, args); | |
2893 | } | |
2894 | ||
2895 | DEFUN ("ash", Fash, Sash, 2, 2, 0, | |
8c1a1077 PJ |
2896 | doc: /* Return VALUE with its bits shifted left by COUNT. |
2897 | If COUNT is negative, shifting is actually to the right. | |
2898 | In this case, the sign bit is duplicated. */) | |
2899 | (value, count) | |
3b9f7964 | 2900 | register Lisp_Object value, count; |
7921925c JB |
2901 | { |
2902 | register Lisp_Object val; | |
2903 | ||
b7826503 PJ |
2904 | CHECK_NUMBER (value); |
2905 | CHECK_NUMBER (count); | |
7921925c | 2906 | |
81d70626 RS |
2907 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2908 | XSETINT (val, 0); | |
2909 | else if (XINT (count) > 0) | |
3d9652eb | 2910 | XSETINT (val, XINT (value) << XFASTINT (count)); |
81d70626 RS |
2911 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2912 | XSETINT (val, XINT (value) < 0 ? -1 : 0); | |
7921925c | 2913 | else |
3d9652eb | 2914 | XSETINT (val, XINT (value) >> -XINT (count)); |
7921925c JB |
2915 | return val; |
2916 | } | |
2917 | ||
2918 | DEFUN ("lsh", Flsh, Slsh, 2, 2, 0, | |
8c1a1077 PJ |
2919 | doc: /* Return VALUE with its bits shifted left by COUNT. |
2920 | If COUNT is negative, shifting is actually to the right. | |
3a9b1297 | 2921 | In this case, zeros are shifted in on the left. */) |
8c1a1077 | 2922 | (value, count) |
3d9652eb | 2923 | register Lisp_Object value, count; |
7921925c JB |
2924 | { |
2925 | register Lisp_Object val; | |
2926 | ||
b7826503 PJ |
2927 | CHECK_NUMBER (value); |
2928 | CHECK_NUMBER (count); | |
7921925c | 2929 | |
81d70626 RS |
2930 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2931 | XSETINT (val, 0); | |
2932 | else if (XINT (count) > 0) | |
3d9652eb | 2933 | XSETINT (val, (EMACS_UINT) XUINT (value) << XFASTINT (count)); |
81d70626 RS |
2934 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2935 | XSETINT (val, 0); | |
7921925c | 2936 | else |
3d9652eb | 2937 | XSETINT (val, (EMACS_UINT) XUINT (value) >> -XINT (count)); |
7921925c JB |
2938 | return val; |
2939 | } | |
2940 | ||
2941 | DEFUN ("1+", Fadd1, Sadd1, 1, 1, 0, | |
8c1a1077 PJ |
2942 | doc: /* Return NUMBER plus one. NUMBER may be a number or a marker. |
2943 | Markers are converted to integers. */) | |
2944 | (number) | |
d9c2a0f2 | 2945 | register Lisp_Object number; |
7921925c | 2946 | { |
b7826503 | 2947 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number); |
7921925c | 2948 | |
d9c2a0f2 | 2949 | if (FLOATP (number)) |
7539e11f | 2950 | return (make_float (1.0 + XFLOAT_DATA (number))); |
7921925c | 2951 | |
d9c2a0f2 EN |
2952 | XSETINT (number, XINT (number) + 1); |
2953 | return number; | |
7921925c JB |
2954 | } |
2955 | ||
2956 | DEFUN ("1-", Fsub1, Ssub1, 1, 1, 0, | |
8c1a1077 PJ |
2957 | doc: /* Return NUMBER minus one. NUMBER may be a number or a marker. |
2958 | Markers are converted to integers. */) | |
2959 | (number) | |
d9c2a0f2 | 2960 | register Lisp_Object number; |
7921925c | 2961 | { |
b7826503 | 2962 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number); |
7921925c | 2963 | |
d9c2a0f2 | 2964 | if (FLOATP (number)) |
7539e11f | 2965 | return (make_float (-1.0 + XFLOAT_DATA (number))); |
7921925c | 2966 | |
d9c2a0f2 EN |
2967 | XSETINT (number, XINT (number) - 1); |
2968 | return number; | |
7921925c JB |
2969 | } |
2970 | ||
2971 | DEFUN ("lognot", Flognot, Slognot, 1, 1, 0, | |
8c1a1077 PJ |
2972 | doc: /* Return the bitwise complement of NUMBER. NUMBER must be an integer. */) |
2973 | (number) | |
d9c2a0f2 | 2974 | register Lisp_Object number; |
7921925c | 2975 | { |
b7826503 | 2976 | CHECK_NUMBER (number); |
53924017 | 2977 | XSETINT (number, ~XINT (number)); |
d9c2a0f2 | 2978 | return number; |
7921925c | 2979 | } |
d4be0d31 JD |
2980 | |
2981 | DEFUN ("byteorder", Fbyteorder, Sbyteorder, 0, 0, 0, | |
2982 | doc: /* Return the byteorder for the machine. | |
2983 | Returns 66 (ASCII uppercase B) for big endian machines or 108 (ASCII | |
2984 | lowercase l) for small endian machines. */) | |
2985 | () | |
2986 | { | |
2987 | unsigned i = 0x04030201; | |
7a8560d7 | 2988 | int order = *(char *)&i == 1 ? 108 : 66; |
d4be0d31 | 2989 | |
d2f14999 | 2990 | return make_number (order); |
d4be0d31 JD |
2991 | } |
2992 | ||
2993 | ||
7921925c JB |
2994 | \f |
2995 | void | |
2996 | syms_of_data () | |
2997 | { | |
6315e761 RS |
2998 | Lisp_Object error_tail, arith_tail; |
2999 | ||
7921925c JB |
3000 | Qquote = intern ("quote"); |
3001 | Qlambda = intern ("lambda"); | |
3002 | Qsubr = intern ("subr"); | |
3003 | Qerror_conditions = intern ("error-conditions"); | |
3004 | Qerror_message = intern ("error-message"); | |
3005 | Qtop_level = intern ("top-level"); | |
3006 | ||
3007 | Qerror = intern ("error"); | |
3008 | Qquit = intern ("quit"); | |
3009 | Qwrong_type_argument = intern ("wrong-type-argument"); | |
3010 | Qargs_out_of_range = intern ("args-out-of-range"); | |
3011 | Qvoid_function = intern ("void-function"); | |
ffd56f97 | 3012 | Qcyclic_function_indirection = intern ("cyclic-function-indirection"); |
f35d5bad | 3013 | Qcyclic_variable_indirection = intern ("cyclic-variable-indirection"); |
7921925c JB |
3014 | Qvoid_variable = intern ("void-variable"); |
3015 | Qsetting_constant = intern ("setting-constant"); | |
3016 | Qinvalid_read_syntax = intern ("invalid-read-syntax"); | |
3017 | ||
3018 | Qinvalid_function = intern ("invalid-function"); | |
3019 | Qwrong_number_of_arguments = intern ("wrong-number-of-arguments"); | |
3020 | Qno_catch = intern ("no-catch"); | |
3021 | Qend_of_file = intern ("end-of-file"); | |
3022 | Qarith_error = intern ("arith-error"); | |
3023 | Qbeginning_of_buffer = intern ("beginning-of-buffer"); | |
3024 | Qend_of_buffer = intern ("end-of-buffer"); | |
3025 | Qbuffer_read_only = intern ("buffer-read-only"); | |
8f9f49d7 | 3026 | Qtext_read_only = intern ("text-read-only"); |
3b8819d6 | 3027 | Qmark_inactive = intern ("mark-inactive"); |
7921925c JB |
3028 | |
3029 | Qlistp = intern ("listp"); | |
3030 | Qconsp = intern ("consp"); | |
3031 | Qsymbolp = intern ("symbolp"); | |
cda9b832 | 3032 | Qkeywordp = intern ("keywordp"); |
7921925c JB |
3033 | Qintegerp = intern ("integerp"); |
3034 | Qnatnump = intern ("natnump"); | |
8e86942b | 3035 | Qwholenump = intern ("wholenump"); |
7921925c JB |
3036 | Qstringp = intern ("stringp"); |
3037 | Qarrayp = intern ("arrayp"); | |
3038 | Qsequencep = intern ("sequencep"); | |
3039 | Qbufferp = intern ("bufferp"); | |
3040 | Qvectorp = intern ("vectorp"); | |
3041 | Qchar_or_string_p = intern ("char-or-string-p"); | |
3042 | Qmarkerp = intern ("markerp"); | |
07bd8472 | 3043 | Qbuffer_or_string_p = intern ("buffer-or-string-p"); |
7921925c JB |
3044 | Qinteger_or_marker_p = intern ("integer-or-marker-p"); |
3045 | Qboundp = intern ("boundp"); | |
3046 | Qfboundp = intern ("fboundp"); | |
3047 | ||
7921925c JB |
3048 | Qfloatp = intern ("floatp"); |
3049 | Qnumberp = intern ("numberp"); | |
3050 | Qnumber_or_marker_p = intern ("number-or-marker-p"); | |
7921925c | 3051 | |
4d276982 | 3052 | Qchar_table_p = intern ("char-table-p"); |
7f0edce7 | 3053 | Qvector_or_char_table_p = intern ("vector-or-char-table-p"); |
4d276982 | 3054 | |
6f0e897f DL |
3055 | Qsubrp = intern ("subrp"); |
3056 | Qunevalled = intern ("unevalled"); | |
3057 | Qmany = intern ("many"); | |
3058 | ||
7921925c JB |
3059 | Qcdr = intern ("cdr"); |
3060 | ||
f845f2c9 | 3061 | /* Handle automatic advice activation */ |
ab297811 | 3062 | Qad_advice_info = intern ("ad-advice-info"); |
c1307a23 | 3063 | Qad_activate_internal = intern ("ad-activate-internal"); |
f845f2c9 | 3064 | |
6315e761 RS |
3065 | error_tail = Fcons (Qerror, Qnil); |
3066 | ||
7921925c JB |
3067 | /* ERROR is used as a signaler for random errors for which nothing else is right */ |
3068 | ||
3069 | Fput (Qerror, Qerror_conditions, | |
6315e761 | 3070 | error_tail); |
7921925c JB |
3071 | Fput (Qerror, Qerror_message, |
3072 | build_string ("error")); | |
3073 | ||
3074 | Fput (Qquit, Qerror_conditions, | |
3075 | Fcons (Qquit, Qnil)); | |
3076 | Fput (Qquit, Qerror_message, | |
3077 | build_string ("Quit")); | |
3078 | ||
3079 | Fput (Qwrong_type_argument, Qerror_conditions, | |
6315e761 | 3080 | Fcons (Qwrong_type_argument, error_tail)); |
7921925c JB |
3081 | Fput (Qwrong_type_argument, Qerror_message, |
3082 | build_string ("Wrong type argument")); | |
3083 | ||
3084 | Fput (Qargs_out_of_range, Qerror_conditions, | |
6315e761 | 3085 | Fcons (Qargs_out_of_range, error_tail)); |
7921925c JB |
3086 | Fput (Qargs_out_of_range, Qerror_message, |
3087 | build_string ("Args out of range")); | |
3088 | ||
3089 | Fput (Qvoid_function, Qerror_conditions, | |
6315e761 | 3090 | Fcons (Qvoid_function, error_tail)); |
7921925c JB |
3091 | Fput (Qvoid_function, Qerror_message, |
3092 | build_string ("Symbol's function definition is void")); | |
3093 | ||
ffd56f97 | 3094 | Fput (Qcyclic_function_indirection, Qerror_conditions, |
6315e761 | 3095 | Fcons (Qcyclic_function_indirection, error_tail)); |
ffd56f97 JB |
3096 | Fput (Qcyclic_function_indirection, Qerror_message, |
3097 | build_string ("Symbol's chain of function indirections contains a loop")); | |
3098 | ||
f35d5bad GM |
3099 | Fput (Qcyclic_variable_indirection, Qerror_conditions, |
3100 | Fcons (Qcyclic_variable_indirection, error_tail)); | |
3101 | Fput (Qcyclic_variable_indirection, Qerror_message, | |
3102 | build_string ("Symbol's chain of variable indirections contains a loop")); | |
3103 | ||
13d95cc0 GM |
3104 | Qcircular_list = intern ("circular-list"); |
3105 | staticpro (&Qcircular_list); | |
3106 | Fput (Qcircular_list, Qerror_conditions, | |
3107 | Fcons (Qcircular_list, error_tail)); | |
3108 | Fput (Qcircular_list, Qerror_message, | |
3109 | build_string ("List contains a loop")); | |
3110 | ||
7921925c | 3111 | Fput (Qvoid_variable, Qerror_conditions, |
6315e761 | 3112 | Fcons (Qvoid_variable, error_tail)); |
7921925c JB |
3113 | Fput (Qvoid_variable, Qerror_message, |
3114 | build_string ("Symbol's value as variable is void")); | |
3115 | ||
3116 | Fput (Qsetting_constant, Qerror_conditions, | |
6315e761 | 3117 | Fcons (Qsetting_constant, error_tail)); |
7921925c JB |
3118 | Fput (Qsetting_constant, Qerror_message, |
3119 | build_string ("Attempt to set a constant symbol")); | |
3120 | ||
3121 | Fput (Qinvalid_read_syntax, Qerror_conditions, | |
6315e761 | 3122 | Fcons (Qinvalid_read_syntax, error_tail)); |
7921925c JB |
3123 | Fput (Qinvalid_read_syntax, Qerror_message, |
3124 | build_string ("Invalid read syntax")); | |
3125 | ||
3126 | Fput (Qinvalid_function, Qerror_conditions, | |
6315e761 | 3127 | Fcons (Qinvalid_function, error_tail)); |
7921925c JB |
3128 | Fput (Qinvalid_function, Qerror_message, |
3129 | build_string ("Invalid function")); | |
3130 | ||
3131 | Fput (Qwrong_number_of_arguments, Qerror_conditions, | |
6315e761 | 3132 | Fcons (Qwrong_number_of_arguments, error_tail)); |
7921925c JB |
3133 | Fput (Qwrong_number_of_arguments, Qerror_message, |
3134 | build_string ("Wrong number of arguments")); | |
3135 | ||
3136 | Fput (Qno_catch, Qerror_conditions, | |
6315e761 | 3137 | Fcons (Qno_catch, error_tail)); |
7921925c JB |
3138 | Fput (Qno_catch, Qerror_message, |
3139 | build_string ("No catch for tag")); | |
3140 | ||
3141 | Fput (Qend_of_file, Qerror_conditions, | |
6315e761 | 3142 | Fcons (Qend_of_file, error_tail)); |
7921925c JB |
3143 | Fput (Qend_of_file, Qerror_message, |
3144 | build_string ("End of file during parsing")); | |
3145 | ||
6315e761 | 3146 | arith_tail = Fcons (Qarith_error, error_tail); |
7921925c | 3147 | Fput (Qarith_error, Qerror_conditions, |
6315e761 | 3148 | arith_tail); |
7921925c JB |
3149 | Fput (Qarith_error, Qerror_message, |
3150 | build_string ("Arithmetic error")); | |
3151 | ||
3152 | Fput (Qbeginning_of_buffer, Qerror_conditions, | |
6315e761 | 3153 | Fcons (Qbeginning_of_buffer, error_tail)); |
7921925c JB |
3154 | Fput (Qbeginning_of_buffer, Qerror_message, |
3155 | build_string ("Beginning of buffer")); | |
3156 | ||
3157 | Fput (Qend_of_buffer, Qerror_conditions, | |
6315e761 | 3158 | Fcons (Qend_of_buffer, error_tail)); |
7921925c JB |
3159 | Fput (Qend_of_buffer, Qerror_message, |
3160 | build_string ("End of buffer")); | |
3161 | ||
3162 | Fput (Qbuffer_read_only, Qerror_conditions, | |
6315e761 | 3163 | Fcons (Qbuffer_read_only, error_tail)); |
7921925c JB |
3164 | Fput (Qbuffer_read_only, Qerror_message, |
3165 | build_string ("Buffer is read-only")); | |
3166 | ||
8f9f49d7 GM |
3167 | Fput (Qtext_read_only, Qerror_conditions, |
3168 | Fcons (Qtext_read_only, error_tail)); | |
3169 | Fput (Qtext_read_only, Qerror_message, | |
3170 | build_string ("Text is read-only")); | |
3171 | ||
6315e761 RS |
3172 | Qrange_error = intern ("range-error"); |
3173 | Qdomain_error = intern ("domain-error"); | |
3174 | Qsingularity_error = intern ("singularity-error"); | |
3175 | Qoverflow_error = intern ("overflow-error"); | |
3176 | Qunderflow_error = intern ("underflow-error"); | |
3177 | ||
3178 | Fput (Qdomain_error, Qerror_conditions, | |
3179 | Fcons (Qdomain_error, arith_tail)); | |
3180 | Fput (Qdomain_error, Qerror_message, | |
3181 | build_string ("Arithmetic domain error")); | |
3182 | ||
3183 | Fput (Qrange_error, Qerror_conditions, | |
3184 | Fcons (Qrange_error, arith_tail)); | |
3185 | Fput (Qrange_error, Qerror_message, | |
3186 | build_string ("Arithmetic range error")); | |
3187 | ||
3188 | Fput (Qsingularity_error, Qerror_conditions, | |
3189 | Fcons (Qsingularity_error, Fcons (Qdomain_error, arith_tail))); | |
3190 | Fput (Qsingularity_error, Qerror_message, | |
3191 | build_string ("Arithmetic singularity error")); | |
3192 | ||
3193 | Fput (Qoverflow_error, Qerror_conditions, | |
3194 | Fcons (Qoverflow_error, Fcons (Qdomain_error, arith_tail))); | |
3195 | Fput (Qoverflow_error, Qerror_message, | |
3196 | build_string ("Arithmetic overflow error")); | |
3197 | ||
3198 | Fput (Qunderflow_error, Qerror_conditions, | |
3199 | Fcons (Qunderflow_error, Fcons (Qdomain_error, arith_tail))); | |
3200 | Fput (Qunderflow_error, Qerror_message, | |
3201 | build_string ("Arithmetic underflow error")); | |
3202 | ||
3203 | staticpro (&Qrange_error); | |
3204 | staticpro (&Qdomain_error); | |
3205 | staticpro (&Qsingularity_error); | |
3206 | staticpro (&Qoverflow_error); | |
3207 | staticpro (&Qunderflow_error); | |
6315e761 | 3208 | |
7921925c JB |
3209 | staticpro (&Qnil); |
3210 | staticpro (&Qt); | |
3211 | staticpro (&Qquote); | |
3212 | staticpro (&Qlambda); | |
3213 | staticpro (&Qsubr); | |
3214 | staticpro (&Qunbound); | |
3215 | staticpro (&Qerror_conditions); | |
3216 | staticpro (&Qerror_message); | |
3217 | staticpro (&Qtop_level); | |
3218 | ||
3219 | staticpro (&Qerror); | |
3220 | staticpro (&Qquit); | |
3221 | staticpro (&Qwrong_type_argument); | |
3222 | staticpro (&Qargs_out_of_range); | |
3223 | staticpro (&Qvoid_function); | |
ffd56f97 | 3224 | staticpro (&Qcyclic_function_indirection); |
dfad0b34 | 3225 | staticpro (&Qcyclic_variable_indirection); |
7921925c JB |
3226 | staticpro (&Qvoid_variable); |
3227 | staticpro (&Qsetting_constant); | |
3228 | staticpro (&Qinvalid_read_syntax); | |
3229 | staticpro (&Qwrong_number_of_arguments); | |
3230 | staticpro (&Qinvalid_function); | |
3231 | staticpro (&Qno_catch); | |
3232 | staticpro (&Qend_of_file); | |
3233 | staticpro (&Qarith_error); | |
3234 | staticpro (&Qbeginning_of_buffer); | |
3235 | staticpro (&Qend_of_buffer); | |
3236 | staticpro (&Qbuffer_read_only); | |
8f9f49d7 | 3237 | staticpro (&Qtext_read_only); |
638b77e6 | 3238 | staticpro (&Qmark_inactive); |
7921925c JB |
3239 | |
3240 | staticpro (&Qlistp); | |
3241 | staticpro (&Qconsp); | |
3242 | staticpro (&Qsymbolp); | |
cda9b832 | 3243 | staticpro (&Qkeywordp); |
7921925c JB |
3244 | staticpro (&Qintegerp); |
3245 | staticpro (&Qnatnump); | |
8e86942b | 3246 | staticpro (&Qwholenump); |
7921925c JB |
3247 | staticpro (&Qstringp); |
3248 | staticpro (&Qarrayp); | |
3249 | staticpro (&Qsequencep); | |
3250 | staticpro (&Qbufferp); | |
3251 | staticpro (&Qvectorp); | |
3252 | staticpro (&Qchar_or_string_p); | |
3253 | staticpro (&Qmarkerp); | |
07bd8472 | 3254 | staticpro (&Qbuffer_or_string_p); |
7921925c | 3255 | staticpro (&Qinteger_or_marker_p); |
7921925c | 3256 | staticpro (&Qfloatp); |
464f8898 RS |
3257 | staticpro (&Qnumberp); |
3258 | staticpro (&Qnumber_or_marker_p); | |
4d276982 | 3259 | staticpro (&Qchar_table_p); |
7f0edce7 | 3260 | staticpro (&Qvector_or_char_table_p); |
6f0e897f DL |
3261 | staticpro (&Qsubrp); |
3262 | staticpro (&Qmany); | |
3263 | staticpro (&Qunevalled); | |
7921925c JB |
3264 | |
3265 | staticpro (&Qboundp); | |
3266 | staticpro (&Qfboundp); | |
3267 | staticpro (&Qcdr); | |
ab297811 | 3268 | staticpro (&Qad_advice_info); |
c1307a23 | 3269 | staticpro (&Qad_activate_internal); |
7921925c | 3270 | |
39bcc759 RS |
3271 | /* Types that type-of returns. */ |
3272 | Qinteger = intern ("integer"); | |
3273 | Qsymbol = intern ("symbol"); | |
3274 | Qstring = intern ("string"); | |
3275 | Qcons = intern ("cons"); | |
3276 | Qmarker = intern ("marker"); | |
3277 | Qoverlay = intern ("overlay"); | |
3278 | Qfloat = intern ("float"); | |
3279 | Qwindow_configuration = intern ("window-configuration"); | |
3280 | Qprocess = intern ("process"); | |
3281 | Qwindow = intern ("window"); | |
3282 | /* Qsubr = intern ("subr"); */ | |
3283 | Qcompiled_function = intern ("compiled-function"); | |
3284 | Qbuffer = intern ("buffer"); | |
3285 | Qframe = intern ("frame"); | |
3286 | Qvector = intern ("vector"); | |
fc67d5be KH |
3287 | Qchar_table = intern ("char-table"); |
3288 | Qbool_vector = intern ("bool-vector"); | |
81dc5de5 | 3289 | Qhash_table = intern ("hash-table"); |
39bcc759 RS |
3290 | |
3291 | staticpro (&Qinteger); | |
3292 | staticpro (&Qsymbol); | |
3293 | staticpro (&Qstring); | |
3294 | staticpro (&Qcons); | |
3295 | staticpro (&Qmarker); | |
3296 | staticpro (&Qoverlay); | |
3297 | staticpro (&Qfloat); | |
3298 | staticpro (&Qwindow_configuration); | |
3299 | staticpro (&Qprocess); | |
3300 | staticpro (&Qwindow); | |
3301 | /* staticpro (&Qsubr); */ | |
3302 | staticpro (&Qcompiled_function); | |
3303 | staticpro (&Qbuffer); | |
3304 | staticpro (&Qframe); | |
3305 | staticpro (&Qvector); | |
fc67d5be KH |
3306 | staticpro (&Qchar_table); |
3307 | staticpro (&Qbool_vector); | |
81dc5de5 | 3308 | staticpro (&Qhash_table); |
39bcc759 | 3309 | |
f35d5bad | 3310 | defsubr (&Sindirect_variable); |
f52a3ca3 | 3311 | defsubr (&Sinteractive_form); |
7921925c JB |
3312 | defsubr (&Seq); |
3313 | defsubr (&Snull); | |
39bcc759 | 3314 | defsubr (&Stype_of); |
7921925c JB |
3315 | defsubr (&Slistp); |
3316 | defsubr (&Snlistp); | |
3317 | defsubr (&Sconsp); | |
3318 | defsubr (&Satom); | |
3319 | defsubr (&Sintegerp); | |
464f8898 | 3320 | defsubr (&Sinteger_or_marker_p); |
7921925c JB |
3321 | defsubr (&Snumberp); |
3322 | defsubr (&Snumber_or_marker_p); | |
464f8898 | 3323 | defsubr (&Sfloatp); |
7921925c JB |
3324 | defsubr (&Snatnump); |
3325 | defsubr (&Ssymbolp); | |
cda9b832 | 3326 | defsubr (&Skeywordp); |
7921925c | 3327 | defsubr (&Sstringp); |
0f56470d | 3328 | defsubr (&Smultibyte_string_p); |
7921925c | 3329 | defsubr (&Svectorp); |
4d276982 | 3330 | defsubr (&Schar_table_p); |
7f0edce7 | 3331 | defsubr (&Svector_or_char_table_p); |
4d276982 | 3332 | defsubr (&Sbool_vector_p); |
7921925c JB |
3333 | defsubr (&Sarrayp); |
3334 | defsubr (&Ssequencep); | |
3335 | defsubr (&Sbufferp); | |
3336 | defsubr (&Smarkerp); | |
7921925c | 3337 | defsubr (&Ssubrp); |
dbc4e1c1 | 3338 | defsubr (&Sbyte_code_function_p); |
7921925c JB |
3339 | defsubr (&Schar_or_string_p); |
3340 | defsubr (&Scar); | |
3341 | defsubr (&Scdr); | |
3342 | defsubr (&Scar_safe); | |
3343 | defsubr (&Scdr_safe); | |
3344 | defsubr (&Ssetcar); | |
3345 | defsubr (&Ssetcdr); | |
3346 | defsubr (&Ssymbol_function); | |
ffd56f97 | 3347 | defsubr (&Sindirect_function); |
7921925c JB |
3348 | defsubr (&Ssymbol_plist); |
3349 | defsubr (&Ssymbol_name); | |
3350 | defsubr (&Smakunbound); | |
3351 | defsubr (&Sfmakunbound); | |
3352 | defsubr (&Sboundp); | |
3353 | defsubr (&Sfboundp); | |
3354 | defsubr (&Sfset); | |
80df38a2 | 3355 | defsubr (&Sdefalias); |
7921925c JB |
3356 | defsubr (&Ssetplist); |
3357 | defsubr (&Ssymbol_value); | |
3358 | defsubr (&Sset); | |
3359 | defsubr (&Sdefault_boundp); | |
3360 | defsubr (&Sdefault_value); | |
3361 | defsubr (&Sset_default); | |
3362 | defsubr (&Ssetq_default); | |
3363 | defsubr (&Smake_variable_buffer_local); | |
3364 | defsubr (&Smake_local_variable); | |
3365 | defsubr (&Skill_local_variable); | |
b0c2d1c6 | 3366 | defsubr (&Smake_variable_frame_local); |
62476adc | 3367 | defsubr (&Slocal_variable_p); |
f4f04cee | 3368 | defsubr (&Slocal_variable_if_set_p); |
0a2546d4 | 3369 | defsubr (&Svariable_binding_locus); |
c40bb1ba | 3370 | #if 0 /* XXX Remove this. --lorentey */ |
2a42d440 KL |
3371 | defsubr (&Sterminal_local_value); |
3372 | defsubr (&Sset_terminal_local_value); | |
c40bb1ba | 3373 | #endif |
7921925c JB |
3374 | defsubr (&Saref); |
3375 | defsubr (&Saset); | |
f2980264 | 3376 | defsubr (&Snumber_to_string); |
25e40a4b | 3377 | defsubr (&Sstring_to_number); |
7921925c JB |
3378 | defsubr (&Seqlsign); |
3379 | defsubr (&Slss); | |
3380 | defsubr (&Sgtr); | |
3381 | defsubr (&Sleq); | |
3382 | defsubr (&Sgeq); | |
3383 | defsubr (&Sneq); | |
3384 | defsubr (&Szerop); | |
3385 | defsubr (&Splus); | |
3386 | defsubr (&Sminus); | |
3387 | defsubr (&Stimes); | |
3388 | defsubr (&Squo); | |
3389 | defsubr (&Srem); | |
44fa9da5 | 3390 | defsubr (&Smod); |
7921925c JB |
3391 | defsubr (&Smax); |
3392 | defsubr (&Smin); | |
3393 | defsubr (&Slogand); | |
3394 | defsubr (&Slogior); | |
3395 | defsubr (&Slogxor); | |
3396 | defsubr (&Slsh); | |
3397 | defsubr (&Sash); | |
3398 | defsubr (&Sadd1); | |
3399 | defsubr (&Ssub1); | |
3400 | defsubr (&Slognot); | |
d4be0d31 | 3401 | defsubr (&Sbyteorder); |
6f0e897f | 3402 | defsubr (&Ssubr_arity); |
0fddae66 | 3403 | defsubr (&Ssubr_name); |
8e86942b | 3404 | |
c80bd143 | 3405 | XSYMBOL (Qwholenump)->function = XSYMBOL (Qnatnump)->function; |
e6190b11 | 3406 | |
9d113d9d AS |
3407 | DEFVAR_LISP ("most-positive-fixnum", &Vmost_positive_fixnum, |
3408 | doc: /* The largest value that is representable in a Lisp integer. */); | |
3409 | Vmost_positive_fixnum = make_number (MOST_POSITIVE_FIXNUM); | |
bfb96cb7 | 3410 | |
9d113d9d AS |
3411 | DEFVAR_LISP ("most-negative-fixnum", &Vmost_negative_fixnum, |
3412 | doc: /* The smallest value that is representable in a Lisp integer. */); | |
3413 | Vmost_negative_fixnum = make_number (MOST_NEGATIVE_FIXNUM); | |
7921925c JB |
3414 | } |
3415 | ||
a33ef3ab | 3416 | SIGTYPE |
7921925c JB |
3417 | arith_error (signo) |
3418 | int signo; | |
3419 | { | |
fe42a920 | 3420 | #if defined(USG) && !defined(POSIX_SIGNALS) |
7921925c JB |
3421 | /* USG systems forget handlers when they are used; |
3422 | must reestablish each time */ | |
3423 | signal (signo, arith_error); | |
3424 | #endif /* USG */ | |
3425 | #ifdef VMS | |
3426 | /* VMS systems are like USG. */ | |
3427 | signal (signo, arith_error); | |
3428 | #endif /* VMS */ | |
3429 | #ifdef BSD4_1 | |
3430 | sigrelse (SIGFPE); | |
3431 | #else /* not BSD4_1 */ | |
e065a56e | 3432 | sigsetmask (SIGEMPTYMASK); |
7921925c JB |
3433 | #endif /* not BSD4_1 */ |
3434 | ||
333f1b6f | 3435 | SIGNAL_THREAD_CHECK (signo); |
740ef0b5 | 3436 | xsignal0 (Qarith_error); |
7921925c JB |
3437 | } |
3438 | ||
dfcf069d | 3439 | void |
7921925c JB |
3440 | init_data () |
3441 | { | |
3442 | /* Don't do this if just dumping out. | |
3443 | We don't want to call `signal' in this case | |
3444 | so that we don't have trouble with dumping | |
3445 | signal-delivering routines in an inconsistent state. */ | |
3446 | #ifndef CANNOT_DUMP | |
3447 | if (!initialized) | |
3448 | return; | |
3449 | #endif /* CANNOT_DUMP */ | |
3450 | signal (SIGFPE, arith_error); | |
7403b5c8 | 3451 | |
7921925c JB |
3452 | #ifdef uts |
3453 | signal (SIGEMT, arith_error); | |
3454 | #endif /* uts */ | |
3455 | } | |
ab5796a9 MB |
3456 | |
3457 | /* arch-tag: 25879798-b84d-479a-9c89-7d148e2109f7 | |
3458 | (do not change this comment) */ |