Commit | Line | Data |
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7921925c | 1 | /* Primitive operations on Lisp data types for GNU Emacs Lisp interpreter. |
7a283f36 GM |
2 | Copyright (C) 1985,86,88,93,94,95,97,98,99, 2000, 2001 |
3 | Free Software Foundation, Inc. | |
7921925c JB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
7c938215 | 9 | the Free Software Foundation; either version 2, or (at your option) |
7921925c JB |
10 | any later version. |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
7921925c JB |
21 | |
22 | ||
18160b98 | 23 | #include <config.h> |
68c45bf0 | 24 | #include <signal.h> |
dd8daec5 | 25 | #include <stdio.h> |
7921925c | 26 | #include "lisp.h" |
29eab336 | 27 | #include "puresize.h" |
e6e1f521 | 28 | #include "character.h" |
7921925c | 29 | #include "buffer.h" |
077d751f | 30 | #include "keyboard.h" |
b0c2d1c6 | 31 | #include "frame.h" |
a44804c2 | 32 | #include "syssignal.h" |
fb8e9847 | 33 | |
93b91208 | 34 | #ifdef STDC_HEADERS |
2f261542 | 35 | #include <float.h> |
93b91208 | 36 | #endif |
defa77b5 | 37 | |
ad8d56b9 PE |
38 | /* If IEEE_FLOATING_POINT isn't defined, default it from FLT_*. */ |
39 | #ifndef IEEE_FLOATING_POINT | |
40 | #if (FLT_RADIX == 2 && FLT_MANT_DIG == 24 \ | |
41 | && FLT_MIN_EXP == -125 && FLT_MAX_EXP == 128) | |
42 | #define IEEE_FLOATING_POINT 1 | |
43 | #else | |
44 | #define IEEE_FLOATING_POINT 0 | |
45 | #endif | |
46 | #endif | |
47 | ||
defa77b5 RS |
48 | /* Work around a problem that happens because math.h on hpux 7 |
49 | defines two static variables--which, in Emacs, are not really static, | |
50 | because `static' is defined as nothing. The problem is that they are | |
51 | here, in floatfns.c, and in lread.c. | |
52 | These macros prevent the name conflict. */ | |
53 | #if defined (HPUX) && !defined (HPUX8) | |
54 | #define _MAXLDBL data_c_maxldbl | |
55 | #define _NMAXLDBL data_c_nmaxldbl | |
56 | #endif | |
57 | ||
7921925c | 58 | #include <math.h> |
7921925c | 59 | |
024ec58f BF |
60 | #if !defined (atof) |
61 | extern double atof (); | |
62 | #endif /* !atof */ | |
63 | ||
7921925c JB |
64 | Lisp_Object Qnil, Qt, Qquote, Qlambda, Qsubr, Qunbound; |
65 | Lisp_Object Qerror_conditions, Qerror_message, Qtop_level; | |
66 | Lisp_Object Qerror, Qquit, Qwrong_type_argument, Qargs_out_of_range; | |
ffd56f97 | 67 | Lisp_Object Qvoid_variable, Qvoid_function, Qcyclic_function_indirection; |
13d95cc0 | 68 | Lisp_Object Qcyclic_variable_indirection, Qcircular_list; |
7921925c JB |
69 | Lisp_Object Qsetting_constant, Qinvalid_read_syntax; |
70 | Lisp_Object Qinvalid_function, Qwrong_number_of_arguments, Qno_catch; | |
3b8819d6 | 71 | Lisp_Object Qend_of_file, Qarith_error, Qmark_inactive; |
7921925c | 72 | Lisp_Object Qbeginning_of_buffer, Qend_of_buffer, Qbuffer_read_only; |
8f9f49d7 | 73 | Lisp_Object Qtext_read_only; |
8e86942b | 74 | Lisp_Object Qintegerp, Qnatnump, Qwholenump, Qsymbolp, Qlistp, Qconsp; |
7921925c JB |
75 | Lisp_Object Qstringp, Qarrayp, Qsequencep, Qbufferp; |
76 | Lisp_Object Qchar_or_string_p, Qmarkerp, Qinteger_or_marker_p, Qvectorp; | |
cda9b832 | 77 | Lisp_Object Qbuffer_or_string_p, Qkeywordp; |
7921925c | 78 | Lisp_Object Qboundp, Qfboundp; |
7f0edce7 | 79 | Lisp_Object Qchar_table_p, Qvector_or_char_table_p; |
39bcc759 | 80 | |
7921925c | 81 | Lisp_Object Qcdr; |
c1307a23 | 82 | Lisp_Object Qad_advice_info, Qad_activate_internal; |
7921925c | 83 | |
6315e761 RS |
84 | Lisp_Object Qrange_error, Qdomain_error, Qsingularity_error; |
85 | Lisp_Object Qoverflow_error, Qunderflow_error; | |
86 | ||
464f8898 | 87 | Lisp_Object Qfloatp; |
7921925c | 88 | Lisp_Object Qnumberp, Qnumber_or_marker_p; |
7921925c | 89 | |
39bcc759 | 90 | static Lisp_Object Qinteger, Qsymbol, Qstring, Qcons, Qmarker, Qoverlay; |
8313c4e7 KH |
91 | static Lisp_Object Qfloat, Qwindow_configuration, Qwindow; |
92 | Lisp_Object Qprocess; | |
39bcc759 | 93 | static Lisp_Object Qcompiled_function, Qbuffer, Qframe, Qvector; |
81dc5de5 | 94 | static Lisp_Object Qchar_table, Qbool_vector, Qhash_table; |
6f0e897f | 95 | static Lisp_Object Qsubrp, Qmany, Qunevalled; |
39bcc759 | 96 | |
7a283f36 | 97 | static Lisp_Object swap_in_symval_forwarding P_ ((Lisp_Object, Lisp_Object)); |
d02eeab3 | 98 | |
9d113d9d | 99 | Lisp_Object Vmost_positive_fixnum, Vmost_negative_fixnum; |
e6190b11 | 100 | |
13d95cc0 GM |
101 | |
102 | void | |
103 | circular_list_error (list) | |
104 | Lisp_Object list; | |
105 | { | |
106 | Fsignal (Qcircular_list, list); | |
107 | } | |
108 | ||
109 | ||
7921925c JB |
110 | Lisp_Object |
111 | wrong_type_argument (predicate, value) | |
112 | register Lisp_Object predicate, value; | |
113 | { | |
114 | register Lisp_Object tem; | |
115 | do | |
116 | { | |
e1351ff7 RS |
117 | /* If VALUE is not even a valid Lisp object, abort here |
118 | where we can get a backtrace showing where it came from. */ | |
04be3993 | 119 | if ((unsigned int) XGCTYPE (value) >= Lisp_Type_Limit) |
e1351ff7 RS |
120 | abort (); |
121 | ||
7921925c JB |
122 | value = Fsignal (Qwrong_type_argument, Fcons (predicate, Fcons (value, Qnil))); |
123 | tem = call1 (predicate, value); | |
124 | } | |
a33ef3ab | 125 | while (NILP (tem)); |
7921925c JB |
126 | return value; |
127 | } | |
128 | ||
dfcf069d | 129 | void |
7921925c JB |
130 | pure_write_error () |
131 | { | |
132 | error ("Attempt to modify read-only object"); | |
133 | } | |
134 | ||
135 | void | |
136 | args_out_of_range (a1, a2) | |
137 | Lisp_Object a1, a2; | |
138 | { | |
139 | while (1) | |
140 | Fsignal (Qargs_out_of_range, Fcons (a1, Fcons (a2, Qnil))); | |
141 | } | |
142 | ||
143 | void | |
144 | args_out_of_range_3 (a1, a2, a3) | |
145 | Lisp_Object a1, a2, a3; | |
146 | { | |
147 | while (1) | |
148 | Fsignal (Qargs_out_of_range, Fcons (a1, Fcons (a2, Fcons (a3, Qnil)))); | |
149 | } | |
150 | ||
7921925c JB |
151 | /* On some machines, XINT needs a temporary location. |
152 | Here it is, in case it is needed. */ | |
153 | ||
154 | int sign_extend_temp; | |
155 | ||
156 | /* On a few machines, XINT can only be done by calling this. */ | |
157 | ||
158 | int | |
159 | sign_extend_lisp_int (num) | |
a0ed95ea | 160 | EMACS_INT num; |
7921925c | 161 | { |
a0ed95ea RS |
162 | if (num & (((EMACS_INT) 1) << (VALBITS - 1))) |
163 | return num | (((EMACS_INT) (-1)) << VALBITS); | |
7921925c | 164 | else |
a0ed95ea | 165 | return num & ((((EMACS_INT) 1) << VALBITS) - 1); |
7921925c JB |
166 | } |
167 | \f | |
168 | /* Data type predicates */ | |
169 | ||
170 | DEFUN ("eq", Feq, Seq, 2, 2, 0, | |
8c1a1077 PJ |
171 | doc: /* Return t if the two args are the same Lisp object. */) |
172 | (obj1, obj2) | |
7921925c JB |
173 | Lisp_Object obj1, obj2; |
174 | { | |
175 | if (EQ (obj1, obj2)) | |
176 | return Qt; | |
177 | return Qnil; | |
178 | } | |
179 | ||
8c1a1077 PJ |
180 | DEFUN ("null", Fnull, Snull, 1, 1, 0, |
181 | doc: /* Return t if OBJECT is nil. */) | |
182 | (object) | |
39bcc759 | 183 | Lisp_Object object; |
7921925c | 184 | { |
39bcc759 | 185 | if (NILP (object)) |
7921925c JB |
186 | return Qt; |
187 | return Qnil; | |
188 | } | |
189 | ||
39bcc759 | 190 | DEFUN ("type-of", Ftype_of, Stype_of, 1, 1, 0, |
8c1a1077 PJ |
191 | doc: /* Return a symbol representing the type of OBJECT. |
192 | The symbol returned names the object's basic type; | |
193 | for example, (type-of 1) returns `integer'. */) | |
194 | (object) | |
39bcc759 RS |
195 | Lisp_Object object; |
196 | { | |
197 | switch (XGCTYPE (object)) | |
198 | { | |
199 | case Lisp_Int: | |
200 | return Qinteger; | |
201 | ||
202 | case Lisp_Symbol: | |
203 | return Qsymbol; | |
204 | ||
205 | case Lisp_String: | |
206 | return Qstring; | |
207 | ||
208 | case Lisp_Cons: | |
209 | return Qcons; | |
210 | ||
211 | case Lisp_Misc: | |
324a6eef | 212 | switch (XMISCTYPE (object)) |
39bcc759 RS |
213 | { |
214 | case Lisp_Misc_Marker: | |
215 | return Qmarker; | |
216 | case Lisp_Misc_Overlay: | |
217 | return Qoverlay; | |
218 | case Lisp_Misc_Float: | |
219 | return Qfloat; | |
220 | } | |
221 | abort (); | |
222 | ||
223 | case Lisp_Vectorlike: | |
224 | if (GC_WINDOW_CONFIGURATIONP (object)) | |
225 | return Qwindow_configuration; | |
226 | if (GC_PROCESSP (object)) | |
227 | return Qprocess; | |
228 | if (GC_WINDOWP (object)) | |
229 | return Qwindow; | |
230 | if (GC_SUBRP (object)) | |
231 | return Qsubr; | |
232 | if (GC_COMPILEDP (object)) | |
233 | return Qcompiled_function; | |
234 | if (GC_BUFFERP (object)) | |
235 | return Qbuffer; | |
fc67d5be KH |
236 | if (GC_CHAR_TABLE_P (object)) |
237 | return Qchar_table; | |
238 | if (GC_BOOL_VECTOR_P (object)) | |
239 | return Qbool_vector; | |
39bcc759 RS |
240 | if (GC_FRAMEP (object)) |
241 | return Qframe; | |
81dc5de5 GM |
242 | if (GC_HASH_TABLE_P (object)) |
243 | return Qhash_table; | |
39bcc759 RS |
244 | return Qvector; |
245 | ||
39bcc759 RS |
246 | case Lisp_Float: |
247 | return Qfloat; | |
39bcc759 RS |
248 | |
249 | default: | |
250 | abort (); | |
251 | } | |
252 | } | |
253 | ||
8c1a1077 PJ |
254 | DEFUN ("consp", Fconsp, Sconsp, 1, 1, 0, |
255 | doc: /* Return t if OBJECT is a cons cell. */) | |
256 | (object) | |
39bcc759 | 257 | Lisp_Object object; |
7921925c | 258 | { |
39bcc759 | 259 | if (CONSP (object)) |
7921925c JB |
260 | return Qt; |
261 | return Qnil; | |
262 | } | |
263 | ||
25638b07 | 264 | DEFUN ("atom", Fatom, Satom, 1, 1, 0, |
8c1a1077 PJ |
265 | doc: /* Return t if OBJECT is not a cons cell. This includes nil. */) |
266 | (object) | |
39bcc759 | 267 | Lisp_Object object; |
7921925c | 268 | { |
39bcc759 | 269 | if (CONSP (object)) |
7921925c JB |
270 | return Qnil; |
271 | return Qt; | |
272 | } | |
273 | ||
25638b07 | 274 | DEFUN ("listp", Flistp, Slistp, 1, 1, 0, |
8c1a1077 PJ |
275 | doc: /* Return t if OBJECT is a list. This includes nil. */) |
276 | (object) | |
39bcc759 | 277 | Lisp_Object object; |
7921925c | 278 | { |
39bcc759 | 279 | if (CONSP (object) || NILP (object)) |
7921925c JB |
280 | return Qt; |
281 | return Qnil; | |
282 | } | |
283 | ||
25638b07 | 284 | DEFUN ("nlistp", Fnlistp, Snlistp, 1, 1, 0, |
8c1a1077 PJ |
285 | doc: /* Return t if OBJECT is not a list. Lists include nil. */) |
286 | (object) | |
39bcc759 | 287 | Lisp_Object object; |
7921925c | 288 | { |
39bcc759 | 289 | if (CONSP (object) || NILP (object)) |
7921925c JB |
290 | return Qnil; |
291 | return Qt; | |
292 | } | |
293 | \f | |
25638b07 | 294 | DEFUN ("symbolp", Fsymbolp, Ssymbolp, 1, 1, 0, |
8c1a1077 PJ |
295 | doc: /* Return t if OBJECT is a symbol. */) |
296 | (object) | |
39bcc759 | 297 | Lisp_Object object; |
7921925c | 298 | { |
39bcc759 | 299 | if (SYMBOLP (object)) |
7921925c JB |
300 | return Qt; |
301 | return Qnil; | |
302 | } | |
303 | ||
cda9b832 DL |
304 | /* Define this in C to avoid unnecessarily consing up the symbol |
305 | name. */ | |
306 | DEFUN ("keywordp", Fkeywordp, Skeywordp, 1, 1, 0, | |
8c1a1077 PJ |
307 | doc: /* Return t if OBJECT is a keyword. |
308 | This means that it is a symbol with a print name beginning with `:' | |
309 | interned in the initial obarray. */) | |
310 | (object) | |
cda9b832 DL |
311 | Lisp_Object object; |
312 | { | |
313 | if (SYMBOLP (object) | |
314 | && XSYMBOL (object)->name->data[0] == ':' | |
f35d5bad | 315 | && SYMBOL_INTERNED_IN_INITIAL_OBARRAY_P (object)) |
cda9b832 DL |
316 | return Qt; |
317 | return Qnil; | |
318 | } | |
319 | ||
25638b07 | 320 | DEFUN ("vectorp", Fvectorp, Svectorp, 1, 1, 0, |
8c1a1077 PJ |
321 | doc: /* Return t if OBJECT is a vector. */) |
322 | (object) | |
39bcc759 | 323 | Lisp_Object object; |
7921925c | 324 | { |
39bcc759 | 325 | if (VECTORP (object)) |
7921925c JB |
326 | return Qt; |
327 | return Qnil; | |
328 | } | |
329 | ||
25638b07 | 330 | DEFUN ("stringp", Fstringp, Sstringp, 1, 1, 0, |
8c1a1077 PJ |
331 | doc: /* Return t if OBJECT is a string. */) |
332 | (object) | |
39bcc759 | 333 | Lisp_Object object; |
7921925c | 334 | { |
39bcc759 | 335 | if (STRINGP (object)) |
7921925c JB |
336 | return Qt; |
337 | return Qnil; | |
338 | } | |
339 | ||
25638b07 | 340 | DEFUN ("multibyte-string-p", Fmultibyte_string_p, Smultibyte_string_p, |
8c1a1077 PJ |
341 | 1, 1, 0, |
342 | doc: /* Return t if OBJECT is a multibyte string. */) | |
343 | (object) | |
25638b07 RS |
344 | Lisp_Object object; |
345 | { | |
346 | if (STRINGP (object) && STRING_MULTIBYTE (object)) | |
347 | return Qt; | |
348 | return Qnil; | |
349 | } | |
350 | ||
351 | DEFUN ("char-table-p", Fchar_table_p, Schar_table_p, 1, 1, 0, | |
8c1a1077 PJ |
352 | doc: /* Return t if OBJECT is a char-table. */) |
353 | (object) | |
4d276982 RS |
354 | Lisp_Object object; |
355 | { | |
356 | if (CHAR_TABLE_P (object)) | |
357 | return Qt; | |
358 | return Qnil; | |
359 | } | |
360 | ||
7f0edce7 RS |
361 | DEFUN ("vector-or-char-table-p", Fvector_or_char_table_p, |
362 | Svector_or_char_table_p, 1, 1, 0, | |
8c1a1077 PJ |
363 | doc: /* Return t if OBJECT is a char-table or vector. */) |
364 | (object) | |
7f0edce7 RS |
365 | Lisp_Object object; |
366 | { | |
367 | if (VECTORP (object) || CHAR_TABLE_P (object)) | |
368 | return Qt; | |
369 | return Qnil; | |
370 | } | |
371 | ||
8c1a1077 PJ |
372 | DEFUN ("bool-vector-p", Fbool_vector_p, Sbool_vector_p, 1, 1, 0, |
373 | doc: /* Return t if OBJECT is a bool-vector. */) | |
374 | (object) | |
4d276982 RS |
375 | Lisp_Object object; |
376 | { | |
377 | if (BOOL_VECTOR_P (object)) | |
378 | return Qt; | |
379 | return Qnil; | |
380 | } | |
381 | ||
8c1a1077 PJ |
382 | DEFUN ("arrayp", Farrayp, Sarrayp, 1, 1, 0, |
383 | doc: /* Return t if OBJECT is an array (string or vector). */) | |
384 | (object) | |
39bcc759 | 385 | Lisp_Object object; |
7921925c | 386 | { |
a9729926 RS |
387 | if (VECTORP (object) || STRINGP (object) |
388 | || CHAR_TABLE_P (object) || BOOL_VECTOR_P (object)) | |
7921925c JB |
389 | return Qt; |
390 | return Qnil; | |
391 | } | |
392 | ||
393 | DEFUN ("sequencep", Fsequencep, Ssequencep, 1, 1, 0, | |
8c1a1077 PJ |
394 | doc: /* Return t if OBJECT is a sequence (list or array). */) |
395 | (object) | |
39bcc759 | 396 | register Lisp_Object object; |
7921925c | 397 | { |
4d276982 RS |
398 | if (CONSP (object) || NILP (object) || VECTORP (object) || STRINGP (object) |
399 | || CHAR_TABLE_P (object) || BOOL_VECTOR_P (object)) | |
7921925c JB |
400 | return Qt; |
401 | return Qnil; | |
402 | } | |
403 | ||
8c1a1077 PJ |
404 | DEFUN ("bufferp", Fbufferp, Sbufferp, 1, 1, 0, |
405 | doc: /* Return t if OBJECT is an editor buffer. */) | |
406 | (object) | |
39bcc759 | 407 | Lisp_Object object; |
7921925c | 408 | { |
39bcc759 | 409 | if (BUFFERP (object)) |
7921925c JB |
410 | return Qt; |
411 | return Qnil; | |
412 | } | |
413 | ||
8c1a1077 PJ |
414 | DEFUN ("markerp", Fmarkerp, Smarkerp, 1, 1, 0, |
415 | doc: /* Return t if OBJECT is a marker (editor pointer). */) | |
416 | (object) | |
39bcc759 | 417 | Lisp_Object object; |
7921925c | 418 | { |
39bcc759 | 419 | if (MARKERP (object)) |
7921925c JB |
420 | return Qt; |
421 | return Qnil; | |
422 | } | |
423 | ||
8c1a1077 PJ |
424 | DEFUN ("subrp", Fsubrp, Ssubrp, 1, 1, 0, |
425 | doc: /* Return t if OBJECT is a built-in function. */) | |
426 | (object) | |
39bcc759 | 427 | Lisp_Object object; |
7921925c | 428 | { |
39bcc759 | 429 | if (SUBRP (object)) |
7921925c JB |
430 | return Qt; |
431 | return Qnil; | |
432 | } | |
433 | ||
dbc4e1c1 | 434 | DEFUN ("byte-code-function-p", Fbyte_code_function_p, Sbyte_code_function_p, |
8c1a1077 PJ |
435 | 1, 1, 0, |
436 | doc: /* Return t if OBJECT is a byte-compiled function object. */) | |
437 | (object) | |
39bcc759 | 438 | Lisp_Object object; |
7921925c | 439 | { |
39bcc759 | 440 | if (COMPILEDP (object)) |
7921925c JB |
441 | return Qt; |
442 | return Qnil; | |
443 | } | |
444 | ||
0321d75c | 445 | DEFUN ("char-or-string-p", Fchar_or_string_p, Schar_or_string_p, 1, 1, 0, |
cfd70f33 | 446 | doc: /* Return t if OBJECT is a character or a string. */) |
8c1a1077 | 447 | (object) |
39bcc759 | 448 | register Lisp_Object object; |
7921925c | 449 | { |
cfd70f33 | 450 | if (CHARACTERP (object) || STRINGP (object)) |
7921925c JB |
451 | return Qt; |
452 | return Qnil; | |
453 | } | |
454 | \f | |
8c1a1077 PJ |
455 | DEFUN ("integerp", Fintegerp, Sintegerp, 1, 1, 0, |
456 | doc: /* Return t if OBJECT is an integer. */) | |
457 | (object) | |
39bcc759 | 458 | Lisp_Object object; |
7921925c | 459 | { |
39bcc759 | 460 | if (INTEGERP (object)) |
7921925c JB |
461 | return Qt; |
462 | return Qnil; | |
463 | } | |
464 | ||
464f8898 | 465 | DEFUN ("integer-or-marker-p", Finteger_or_marker_p, Sinteger_or_marker_p, 1, 1, 0, |
8c1a1077 PJ |
466 | doc: /* Return t if OBJECT is an integer or a marker (editor pointer). */) |
467 | (object) | |
39bcc759 | 468 | register Lisp_Object object; |
7921925c | 469 | { |
39bcc759 | 470 | if (MARKERP (object) || INTEGERP (object)) |
7921925c JB |
471 | return Qt; |
472 | return Qnil; | |
473 | } | |
474 | ||
0321d75c | 475 | DEFUN ("natnump", Fnatnump, Snatnump, 1, 1, 0, |
8c1a1077 PJ |
476 | doc: /* Return t if OBJECT is a nonnegative integer. */) |
477 | (object) | |
39bcc759 | 478 | Lisp_Object object; |
7921925c | 479 | { |
39bcc759 | 480 | if (NATNUMP (object)) |
7921925c JB |
481 | return Qt; |
482 | return Qnil; | |
483 | } | |
484 | ||
485 | DEFUN ("numberp", Fnumberp, Snumberp, 1, 1, 0, | |
8c1a1077 PJ |
486 | doc: /* Return t if OBJECT is a number (floating point or integer). */) |
487 | (object) | |
39bcc759 | 488 | Lisp_Object object; |
7921925c | 489 | { |
39bcc759 | 490 | if (NUMBERP (object)) |
7921925c | 491 | return Qt; |
dbc4e1c1 JB |
492 | else |
493 | return Qnil; | |
7921925c JB |
494 | } |
495 | ||
496 | DEFUN ("number-or-marker-p", Fnumber_or_marker_p, | |
497 | Snumber_or_marker_p, 1, 1, 0, | |
8c1a1077 PJ |
498 | doc: /* Return t if OBJECT is a number or a marker. */) |
499 | (object) | |
39bcc759 | 500 | Lisp_Object object; |
7921925c | 501 | { |
39bcc759 | 502 | if (NUMBERP (object) || MARKERP (object)) |
7921925c JB |
503 | return Qt; |
504 | return Qnil; | |
505 | } | |
464f8898 | 506 | |
464f8898 | 507 | DEFUN ("floatp", Ffloatp, Sfloatp, 1, 1, 0, |
8c1a1077 PJ |
508 | doc: /* Return t if OBJECT is a floating point number. */) |
509 | (object) | |
39bcc759 | 510 | Lisp_Object object; |
464f8898 | 511 | { |
39bcc759 | 512 | if (FLOATP (object)) |
464f8898 RS |
513 | return Qt; |
514 | return Qnil; | |
515 | } | |
cc94f3b2 | 516 | |
7921925c JB |
517 | \f |
518 | /* Extract and set components of lists */ | |
519 | ||
520 | DEFUN ("car", Fcar, Scar, 1, 1, 0, | |
8c1a1077 PJ |
521 | doc: /* Return the car of LIST. If arg is nil, return nil. |
522 | Error if arg is not nil and not a cons cell. See also `car-safe'. */) | |
523 | (list) | |
7921925c JB |
524 | register Lisp_Object list; |
525 | { | |
526 | while (1) | |
527 | { | |
e9ebc175 | 528 | if (CONSP (list)) |
7539e11f | 529 | return XCAR (list); |
7921925c JB |
530 | else if (EQ (list, Qnil)) |
531 | return Qnil; | |
532 | else | |
533 | list = wrong_type_argument (Qlistp, list); | |
534 | } | |
535 | } | |
536 | ||
537 | DEFUN ("car-safe", Fcar_safe, Scar_safe, 1, 1, 0, | |
8c1a1077 PJ |
538 | doc: /* Return the car of OBJECT if it is a cons cell, or else nil. */) |
539 | (object) | |
7921925c JB |
540 | Lisp_Object object; |
541 | { | |
e9ebc175 | 542 | if (CONSP (object)) |
7539e11f | 543 | return XCAR (object); |
7921925c JB |
544 | else |
545 | return Qnil; | |
546 | } | |
547 | ||
548 | DEFUN ("cdr", Fcdr, Scdr, 1, 1, 0, | |
8c1a1077 PJ |
549 | doc: /* Return the cdr of LIST. If arg is nil, return nil. |
550 | Error if arg is not nil and not a cons cell. See also `cdr-safe'. */) | |
551 | (list) | |
7921925c JB |
552 | register Lisp_Object list; |
553 | { | |
554 | while (1) | |
555 | { | |
e9ebc175 | 556 | if (CONSP (list)) |
7539e11f | 557 | return XCDR (list); |
7921925c JB |
558 | else if (EQ (list, Qnil)) |
559 | return Qnil; | |
560 | else | |
561 | list = wrong_type_argument (Qlistp, list); | |
562 | } | |
563 | } | |
564 | ||
565 | DEFUN ("cdr-safe", Fcdr_safe, Scdr_safe, 1, 1, 0, | |
8c1a1077 PJ |
566 | doc: /* Return the cdr of OBJECT if it is a cons cell, or else nil. */) |
567 | (object) | |
7921925c JB |
568 | Lisp_Object object; |
569 | { | |
e9ebc175 | 570 | if (CONSP (object)) |
7539e11f | 571 | return XCDR (object); |
7921925c JB |
572 | else |
573 | return Qnil; | |
574 | } | |
575 | ||
576 | DEFUN ("setcar", Fsetcar, Ssetcar, 2, 2, 0, | |
8c1a1077 PJ |
577 | doc: /* Set the car of CELL to be NEWCAR. Returns NEWCAR. */) |
578 | (cell, newcar) | |
7921925c JB |
579 | register Lisp_Object cell, newcar; |
580 | { | |
e9ebc175 | 581 | if (!CONSP (cell)) |
7921925c JB |
582 | cell = wrong_type_argument (Qconsp, cell); |
583 | ||
584 | CHECK_IMPURE (cell); | |
f3fbd155 | 585 | XSETCAR (cell, newcar); |
7921925c JB |
586 | return newcar; |
587 | } | |
588 | ||
589 | DEFUN ("setcdr", Fsetcdr, Ssetcdr, 2, 2, 0, | |
8c1a1077 PJ |
590 | doc: /* Set the cdr of CELL to be NEWCDR. Returns NEWCDR. */) |
591 | (cell, newcdr) | |
7921925c JB |
592 | register Lisp_Object cell, newcdr; |
593 | { | |
e9ebc175 | 594 | if (!CONSP (cell)) |
7921925c JB |
595 | cell = wrong_type_argument (Qconsp, cell); |
596 | ||
597 | CHECK_IMPURE (cell); | |
f3fbd155 | 598 | XSETCDR (cell, newcdr); |
7921925c JB |
599 | return newcdr; |
600 | } | |
601 | \f | |
602 | /* Extract and set components of symbols */ | |
603 | ||
8c1a1077 PJ |
604 | DEFUN ("boundp", Fboundp, Sboundp, 1, 1, 0, |
605 | doc: /* Return t if SYMBOL's value is not void. */) | |
606 | (symbol) | |
d9c2a0f2 | 607 | register Lisp_Object symbol; |
7921925c JB |
608 | { |
609 | Lisp_Object valcontents; | |
b7826503 | 610 | CHECK_SYMBOL (symbol); |
7921925c | 611 | |
f35d5bad | 612 | valcontents = SYMBOL_VALUE (symbol); |
7921925c | 613 | |
aabf6bec KH |
614 | if (BUFFER_LOCAL_VALUEP (valcontents) |
615 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 616 | valcontents = swap_in_symval_forwarding (symbol, valcontents); |
7921925c | 617 | |
1bfcade3 | 618 | return (EQ (valcontents, Qunbound) ? Qnil : Qt); |
7921925c JB |
619 | } |
620 | ||
8c1a1077 PJ |
621 | DEFUN ("fboundp", Ffboundp, Sfboundp, 1, 1, 0, |
622 | doc: /* Return t if SYMBOL's function definition is not void. */) | |
623 | (symbol) | |
d9c2a0f2 | 624 | register Lisp_Object symbol; |
7921925c | 625 | { |
b7826503 | 626 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 627 | return (EQ (XSYMBOL (symbol)->function, Qunbound) ? Qnil : Qt); |
7921925c JB |
628 | } |
629 | ||
8c1a1077 PJ |
630 | DEFUN ("makunbound", Fmakunbound, Smakunbound, 1, 1, 0, |
631 | doc: /* Make SYMBOL's value be void. */) | |
632 | (symbol) | |
d9c2a0f2 | 633 | register Lisp_Object symbol; |
7921925c | 634 | { |
b7826503 | 635 | CHECK_SYMBOL (symbol); |
f35d5bad | 636 | if (XSYMBOL (symbol)->constant) |
d9c2a0f2 EN |
637 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); |
638 | Fset (symbol, Qunbound); | |
639 | return symbol; | |
7921925c JB |
640 | } |
641 | ||
8c1a1077 PJ |
642 | DEFUN ("fmakunbound", Ffmakunbound, Sfmakunbound, 1, 1, 0, |
643 | doc: /* Make SYMBOL's function definition be void. */) | |
644 | (symbol) | |
d9c2a0f2 | 645 | register Lisp_Object symbol; |
7921925c | 646 | { |
b7826503 | 647 | CHECK_SYMBOL (symbol); |
d9c2a0f2 EN |
648 | if (NILP (symbol) || EQ (symbol, Qt)) |
649 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); | |
650 | XSYMBOL (symbol)->function = Qunbound; | |
651 | return symbol; | |
7921925c JB |
652 | } |
653 | ||
654 | DEFUN ("symbol-function", Fsymbol_function, Ssymbol_function, 1, 1, 0, | |
8c1a1077 PJ |
655 | doc: /* Return SYMBOL's function definition. Error if that is void. */) |
656 | (symbol) | |
ffd56f97 | 657 | register Lisp_Object symbol; |
7921925c | 658 | { |
b7826503 | 659 | CHECK_SYMBOL (symbol); |
ffd56f97 JB |
660 | if (EQ (XSYMBOL (symbol)->function, Qunbound)) |
661 | return Fsignal (Qvoid_function, Fcons (symbol, Qnil)); | |
662 | return XSYMBOL (symbol)->function; | |
7921925c JB |
663 | } |
664 | ||
8c1a1077 PJ |
665 | DEFUN ("symbol-plist", Fsymbol_plist, Ssymbol_plist, 1, 1, 0, |
666 | doc: /* Return SYMBOL's property list. */) | |
667 | (symbol) | |
d9c2a0f2 | 668 | register Lisp_Object symbol; |
7921925c | 669 | { |
b7826503 | 670 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 671 | return XSYMBOL (symbol)->plist; |
7921925c JB |
672 | } |
673 | ||
8c1a1077 PJ |
674 | DEFUN ("symbol-name", Fsymbol_name, Ssymbol_name, 1, 1, 0, |
675 | doc: /* Return SYMBOL's name, a string. */) | |
676 | (symbol) | |
d9c2a0f2 | 677 | register Lisp_Object symbol; |
7921925c JB |
678 | { |
679 | register Lisp_Object name; | |
680 | ||
b7826503 | 681 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 682 | XSETSTRING (name, XSYMBOL (symbol)->name); |
7921925c JB |
683 | return name; |
684 | } | |
685 | ||
686 | DEFUN ("fset", Ffset, Sfset, 2, 2, 0, | |
8c1a1077 PJ |
687 | doc: /* Set SYMBOL's function definition to DEFINITION, and return DEFINITION. */) |
688 | (symbol, definition) | |
8c0b5540 | 689 | register Lisp_Object symbol, definition; |
d9c2a0f2 | 690 | { |
b7826503 | 691 | CHECK_SYMBOL (symbol); |
d9c2a0f2 EN |
692 | if (NILP (symbol) || EQ (symbol, Qt)) |
693 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); | |
694 | if (!NILP (Vautoload_queue) && !EQ (XSYMBOL (symbol)->function, Qunbound)) | |
695 | Vautoload_queue = Fcons (Fcons (symbol, XSYMBOL (symbol)->function), | |
7921925c | 696 | Vautoload_queue); |
8c0b5540 | 697 | XSYMBOL (symbol)->function = definition; |
f845f2c9 | 698 | /* Handle automatic advice activation */ |
d9c2a0f2 | 699 | if (CONSP (XSYMBOL (symbol)->plist) && !NILP (Fget (symbol, Qad_advice_info))) |
f845f2c9 | 700 | { |
c1307a23 | 701 | call2 (Qad_activate_internal, symbol, Qnil); |
8c0b5540 | 702 | definition = XSYMBOL (symbol)->function; |
f845f2c9 | 703 | } |
8c0b5540 | 704 | return definition; |
7921925c JB |
705 | } |
706 | ||
80df38a2 | 707 | DEFUN ("defalias", Fdefalias, Sdefalias, 2, 2, 0, |
8c1a1077 PJ |
708 | doc: /* Set SYMBOL's function definition to DEFINITION, and return DEFINITION. |
709 | Associates the function with the current load file, if any. */) | |
710 | (symbol, definition) | |
73e0d965 | 711 | register Lisp_Object symbol, definition; |
fc08c367 | 712 | { |
32f532b7 | 713 | definition = Ffset (symbol, definition); |
d9c2a0f2 | 714 | LOADHIST_ATTACH (symbol); |
73e0d965 | 715 | return definition; |
fc08c367 RS |
716 | } |
717 | ||
7921925c | 718 | DEFUN ("setplist", Fsetplist, Ssetplist, 2, 2, 0, |
8c1a1077 PJ |
719 | doc: /* Set SYMBOL's property list to NEWVAL, and return NEWVAL. */) |
720 | (symbol, newplist) | |
d9c2a0f2 | 721 | register Lisp_Object symbol, newplist; |
7921925c | 722 | { |
b7826503 | 723 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 724 | XSYMBOL (symbol)->plist = newplist; |
7921925c JB |
725 | return newplist; |
726 | } | |
ffd56f97 | 727 | |
6f0e897f | 728 | DEFUN ("subr-arity", Fsubr_arity, Ssubr_arity, 1, 1, 0, |
8c1a1077 PJ |
729 | doc: /* Return minimum and maximum number of args allowed for SUBR. |
730 | SUBR must be a built-in function. | |
731 | The returned value is a pair (MIN . MAX). MIN is the minimum number | |
732 | of args. MAX is the maximum number or the symbol `many', for a | |
733 | function with `&rest' args, or `unevalled' for a special form. */) | |
734 | (subr) | |
6f0e897f DL |
735 | Lisp_Object subr; |
736 | { | |
737 | short minargs, maxargs; | |
738 | if (!SUBRP (subr)) | |
739 | wrong_type_argument (Qsubrp, subr); | |
740 | minargs = XSUBR (subr)->min_args; | |
741 | maxargs = XSUBR (subr)->max_args; | |
742 | if (maxargs == MANY) | |
743 | return Fcons (make_number (minargs), Qmany); | |
744 | else if (maxargs == UNEVALLED) | |
745 | return Fcons (make_number (minargs), Qunevalled); | |
746 | else | |
747 | return Fcons (make_number (minargs), make_number (maxargs)); | |
748 | } | |
749 | ||
cc515226 | 750 | DEFUN ("subr-interactive-form", Fsubr_interactive_form, Ssubr_interactive_form, 1, 1, 0, |
8c1a1077 PJ |
751 | doc: /* Return the interactive form of SUBR or nil if none. |
752 | SUBR must be a built-in function. Value, if non-nil, is a list | |
753 | \(interactive SPEC). */) | |
754 | (subr) | |
cc515226 GM |
755 | Lisp_Object subr; |
756 | { | |
757 | if (!SUBRP (subr)) | |
758 | wrong_type_argument (Qsubrp, subr); | |
759 | if (XSUBR (subr)->prompt) | |
760 | return list2 (Qinteractive, build_string (XSUBR (subr)->prompt)); | |
761 | return Qnil; | |
762 | } | |
763 | ||
7921925c | 764 | \f |
f35d5bad GM |
765 | /*********************************************************************** |
766 | Getting and Setting Values of Symbols | |
767 | ***********************************************************************/ | |
768 | ||
769 | /* Return the symbol holding SYMBOL's value. Signal | |
770 | `cyclic-variable-indirection' if SYMBOL's chain of variable | |
771 | indirections contains a loop. */ | |
772 | ||
773 | Lisp_Object | |
774 | indirect_variable (symbol) | |
775 | Lisp_Object symbol; | |
776 | { | |
777 | Lisp_Object tortoise, hare; | |
778 | ||
779 | hare = tortoise = symbol; | |
780 | ||
781 | while (XSYMBOL (hare)->indirect_variable) | |
782 | { | |
783 | hare = XSYMBOL (hare)->value; | |
784 | if (!XSYMBOL (hare)->indirect_variable) | |
785 | break; | |
786 | ||
787 | hare = XSYMBOL (hare)->value; | |
788 | tortoise = XSYMBOL (tortoise)->value; | |
789 | ||
790 | if (EQ (hare, tortoise)) | |
791 | Fsignal (Qcyclic_variable_indirection, Fcons (symbol, Qnil)); | |
792 | } | |
793 | ||
794 | return hare; | |
795 | } | |
796 | ||
797 | ||
798 | DEFUN ("indirect-variable", Findirect_variable, Sindirect_variable, 1, 1, 0, | |
8c1a1077 PJ |
799 | doc: /* Return the variable at the end of OBJECT's variable chain. |
800 | If OBJECT is a symbol, follow all variable indirections and return the final | |
801 | variable. If OBJECT is not a symbol, just return it. | |
802 | Signal a cyclic-variable-indirection error if there is a loop in the | |
803 | variable chain of symbols. */) | |
804 | (object) | |
f35d5bad GM |
805 | Lisp_Object object; |
806 | { | |
807 | if (SYMBOLP (object)) | |
808 | object = indirect_variable (object); | |
809 | return object; | |
810 | } | |
811 | ||
7921925c JB |
812 | |
813 | /* Given the raw contents of a symbol value cell, | |
814 | return the Lisp value of the symbol. | |
815 | This does not handle buffer-local variables; use | |
816 | swap_in_symval_forwarding for that. */ | |
817 | ||
818 | Lisp_Object | |
819 | do_symval_forwarding (valcontents) | |
820 | register Lisp_Object valcontents; | |
821 | { | |
822 | register Lisp_Object val; | |
46b2ac21 KH |
823 | int offset; |
824 | if (MISCP (valcontents)) | |
324a6eef | 825 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
826 | { |
827 | case Lisp_Misc_Intfwd: | |
828 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
829 | return val; | |
7921925c | 830 | |
46b2ac21 KH |
831 | case Lisp_Misc_Boolfwd: |
832 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
7921925c | 833 | |
46b2ac21 KH |
834 | case Lisp_Misc_Objfwd: |
835 | return *XOBJFWD (valcontents)->objvar; | |
7921925c | 836 | |
46b2ac21 KH |
837 | case Lisp_Misc_Buffer_Objfwd: |
838 | offset = XBUFFER_OBJFWD (valcontents)->offset; | |
f6cd0527 | 839 | return PER_BUFFER_VALUE (current_buffer, offset); |
7403b5c8 | 840 | |
e5f8af9e KH |
841 | case Lisp_Misc_Kboard_Objfwd: |
842 | offset = XKBOARD_OBJFWD (valcontents)->offset; | |
843 | return *(Lisp_Object *)(offset + (char *)current_kboard); | |
46b2ac21 | 844 | } |
7921925c JB |
845 | return valcontents; |
846 | } | |
847 | ||
d9c2a0f2 EN |
848 | /* Store NEWVAL into SYMBOL, where VALCONTENTS is found in the value cell |
849 | of SYMBOL. If SYMBOL is buffer-local, VALCONTENTS should be the | |
7921925c | 850 | buffer-independent contents of the value cell: forwarded just one |
7a283f36 GM |
851 | step past the buffer-localness. |
852 | ||
853 | BUF non-zero means set the value in buffer BUF instead of the | |
854 | current buffer. This only plays a role for per-buffer variables. */ | |
7921925c JB |
855 | |
856 | void | |
7a283f36 | 857 | store_symval_forwarding (symbol, valcontents, newval, buf) |
d9c2a0f2 | 858 | Lisp_Object symbol; |
7921925c | 859 | register Lisp_Object valcontents, newval; |
7a283f36 | 860 | struct buffer *buf; |
7921925c | 861 | { |
0220c518 | 862 | switch (SWITCH_ENUM_CAST (XTYPE (valcontents))) |
7921925c | 863 | { |
46b2ac21 | 864 | case Lisp_Misc: |
324a6eef | 865 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
866 | { |
867 | case Lisp_Misc_Intfwd: | |
b7826503 | 868 | CHECK_NUMBER (newval); |
46b2ac21 | 869 | *XINTFWD (valcontents)->intvar = XINT (newval); |
e6c82a8d RS |
870 | if (*XINTFWD (valcontents)->intvar != XINT (newval)) |
871 | error ("Value out of range for variable `%s'", | |
d9c2a0f2 | 872 | XSYMBOL (symbol)->name->data); |
46b2ac21 KH |
873 | break; |
874 | ||
875 | case Lisp_Misc_Boolfwd: | |
876 | *XBOOLFWD (valcontents)->boolvar = NILP (newval) ? 0 : 1; | |
877 | break; | |
878 | ||
879 | case Lisp_Misc_Objfwd: | |
880 | *XOBJFWD (valcontents)->objvar = newval; | |
881 | break; | |
882 | ||
883 | case Lisp_Misc_Buffer_Objfwd: | |
884 | { | |
885 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
886 | Lisp_Object type; | |
887 | ||
f6cd0527 | 888 | type = PER_BUFFER_TYPE (offset); |
984ef137 KH |
889 | if (XINT (type) == -1) |
890 | error ("Variable %s is read-only", XSYMBOL (symbol)->name->data); | |
891 | ||
46b2ac21 KH |
892 | if (! NILP (type) && ! NILP (newval) |
893 | && XTYPE (newval) != XINT (type)) | |
894 | buffer_slot_type_mismatch (offset); | |
895 | ||
7a283f36 GM |
896 | if (buf == NULL) |
897 | buf = current_buffer; | |
898 | PER_BUFFER_VALUE (buf, offset) = newval; | |
46b2ac21 | 899 | } |
7403b5c8 KH |
900 | break; |
901 | ||
e5f8af9e | 902 | case Lisp_Misc_Kboard_Objfwd: |
7a283f36 GM |
903 | { |
904 | char *base = (char *) current_kboard; | |
905 | char *p = base + XKBOARD_OBJFWD (valcontents)->offset; | |
906 | *(Lisp_Object *) p = newval; | |
907 | } | |
7403b5c8 KH |
908 | break; |
909 | ||
46b2ac21 KH |
910 | default: |
911 | goto def; | |
912 | } | |
7921925c JB |
913 | break; |
914 | ||
7921925c | 915 | default: |
46b2ac21 | 916 | def: |
f35d5bad | 917 | valcontents = SYMBOL_VALUE (symbol); |
e9ebc175 KH |
918 | if (BUFFER_LOCAL_VALUEP (valcontents) |
919 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
b0c2d1c6 | 920 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue = newval; |
7921925c | 921 | else |
f35d5bad | 922 | SET_SYMBOL_VALUE (symbol, newval); |
7921925c JB |
923 | } |
924 | } | |
925 | ||
b0d53add GM |
926 | /* Set up SYMBOL to refer to its global binding. |
927 | This makes it safe to alter the status of other bindings. */ | |
928 | ||
929 | void | |
930 | swap_in_global_binding (symbol) | |
931 | Lisp_Object symbol; | |
932 | { | |
933 | Lisp_Object valcontents, cdr; | |
934 | ||
f35d5bad | 935 | valcontents = SYMBOL_VALUE (symbol); |
b0d53add GM |
936 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
937 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
938 | abort (); | |
939 | cdr = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
940 | ||
941 | /* Unload the previously loaded binding. */ | |
942 | Fsetcdr (XCAR (cdr), | |
943 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); | |
944 | ||
945 | /* Select the global binding in the symbol. */ | |
f3fbd155 | 946 | XSETCAR (cdr, cdr); |
7a283f36 | 947 | store_symval_forwarding (symbol, valcontents, XCDR (cdr), NULL); |
b0d53add GM |
948 | |
949 | /* Indicate that the global binding is set up now. */ | |
950 | XBUFFER_LOCAL_VALUE (valcontents)->frame = Qnil; | |
951 | XBUFFER_LOCAL_VALUE (valcontents)->buffer = Qnil; | |
952 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; | |
953 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
954 | } | |
955 | ||
2829d05f | 956 | /* Set up the buffer-local symbol SYMBOL for validity in the current buffer. |
42e975f0 RS |
957 | VALCONTENTS is the contents of its value cell, |
958 | which points to a struct Lisp_Buffer_Local_Value. | |
959 | ||
960 | Return the value forwarded one step past the buffer-local stage. | |
961 | This could be another forwarding pointer. */ | |
7921925c JB |
962 | |
963 | static Lisp_Object | |
d9c2a0f2 EN |
964 | swap_in_symval_forwarding (symbol, valcontents) |
965 | Lisp_Object symbol, valcontents; | |
7921925c | 966 | { |
7921925c | 967 | register Lisp_Object tem1; |
f35d5bad | 968 | |
b0c2d1c6 | 969 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
7921925c | 970 | |
42e975f0 RS |
971 | if (NILP (tem1) |
972 | || current_buffer != XBUFFER (tem1) | |
973 | || (XBUFFER_LOCAL_VALUE (valcontents)->check_frame | |
974 | && ! EQ (selected_frame, XBUFFER_LOCAL_VALUE (valcontents)->frame))) | |
7921925c | 975 | { |
f35d5bad GM |
976 | if (XSYMBOL (symbol)->indirect_variable) |
977 | symbol = indirect_variable (symbol); | |
978 | ||
42e975f0 | 979 | /* Unload the previously loaded binding. */ |
7539e11f | 980 | tem1 = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
8d4afcac | 981 | Fsetcdr (tem1, |
b0c2d1c6 | 982 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); |
42e975f0 | 983 | /* Choose the new binding. */ |
d9c2a0f2 | 984 | tem1 = assq_no_quit (symbol, current_buffer->local_var_alist); |
b0c2d1c6 RS |
985 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; |
986 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
a33ef3ab | 987 | if (NILP (tem1)) |
b0c2d1c6 RS |
988 | { |
989 | if (XBUFFER_LOCAL_VALUE (valcontents)->check_frame) | |
1cc04aed | 990 | tem1 = assq_no_quit (symbol, XFRAME (selected_frame)->param_alist); |
b0c2d1c6 RS |
991 | if (! NILP (tem1)) |
992 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 1; | |
993 | else | |
994 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
995 | } | |
996 | else | |
997 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 1; | |
998 | ||
42e975f0 | 999 | /* Load the new binding. */ |
f3fbd155 | 1000 | XSETCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr, tem1); |
b0c2d1c6 | 1001 | XSETBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer, current_buffer); |
1cc04aed | 1002 | XBUFFER_LOCAL_VALUE (valcontents)->frame = selected_frame; |
b0c2d1c6 RS |
1003 | store_symval_forwarding (symbol, |
1004 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue, | |
7a283f36 | 1005 | Fcdr (tem1), NULL); |
7921925c | 1006 | } |
b0c2d1c6 | 1007 | return XBUFFER_LOCAL_VALUE (valcontents)->realvalue; |
7921925c JB |
1008 | } |
1009 | \f | |
14e76af9 JB |
1010 | /* Find the value of a symbol, returning Qunbound if it's not bound. |
1011 | This is helpful for code which just wants to get a variable's value | |
8e6208c5 | 1012 | if it has one, without signaling an error. |
14e76af9 JB |
1013 | Note that it must not be possible to quit |
1014 | within this function. Great care is required for this. */ | |
7921925c | 1015 | |
14e76af9 | 1016 | Lisp_Object |
d9c2a0f2 EN |
1017 | find_symbol_value (symbol) |
1018 | Lisp_Object symbol; | |
7921925c | 1019 | { |
dd8daec5 | 1020 | register Lisp_Object valcontents; |
7921925c | 1021 | register Lisp_Object val; |
f35d5bad | 1022 | |
b7826503 | 1023 | CHECK_SYMBOL (symbol); |
f35d5bad | 1024 | valcontents = SYMBOL_VALUE (symbol); |
7921925c | 1025 | |
aabf6bec KH |
1026 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1027 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
2a359158 | 1028 | valcontents = swap_in_symval_forwarding (symbol, valcontents); |
7921925c | 1029 | |
536b772a KH |
1030 | if (MISCP (valcontents)) |
1031 | { | |
324a6eef | 1032 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
1033 | { |
1034 | case Lisp_Misc_Intfwd: | |
1035 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
1036 | return val; | |
7921925c | 1037 | |
46b2ac21 KH |
1038 | case Lisp_Misc_Boolfwd: |
1039 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
7921925c | 1040 | |
46b2ac21 KH |
1041 | case Lisp_Misc_Objfwd: |
1042 | return *XOBJFWD (valcontents)->objvar; | |
7921925c | 1043 | |
46b2ac21 | 1044 | case Lisp_Misc_Buffer_Objfwd: |
f6cd0527 | 1045 | return PER_BUFFER_VALUE (current_buffer, |
999b32fd | 1046 | XBUFFER_OBJFWD (valcontents)->offset); |
7403b5c8 | 1047 | |
e5f8af9e KH |
1048 | case Lisp_Misc_Kboard_Objfwd: |
1049 | return *(Lisp_Object *)(XKBOARD_OBJFWD (valcontents)->offset | |
1050 | + (char *)current_kboard); | |
46b2ac21 | 1051 | } |
7921925c JB |
1052 | } |
1053 | ||
1054 | return valcontents; | |
1055 | } | |
1056 | ||
14e76af9 | 1057 | DEFUN ("symbol-value", Fsymbol_value, Ssymbol_value, 1, 1, 0, |
8c1a1077 PJ |
1058 | doc: /* Return SYMBOL's value. Error if that is void. */) |
1059 | (symbol) | |
d9c2a0f2 | 1060 | Lisp_Object symbol; |
14e76af9 | 1061 | { |
0671d7c0 | 1062 | Lisp_Object val; |
14e76af9 | 1063 | |
d9c2a0f2 | 1064 | val = find_symbol_value (symbol); |
14e76af9 | 1065 | if (EQ (val, Qunbound)) |
d9c2a0f2 | 1066 | return Fsignal (Qvoid_variable, Fcons (symbol, Qnil)); |
14e76af9 JB |
1067 | else |
1068 | return val; | |
1069 | } | |
1070 | ||
7921925c | 1071 | DEFUN ("set", Fset, Sset, 2, 2, 0, |
8c1a1077 PJ |
1072 | doc: /* Set SYMBOL's value to NEWVAL, and return NEWVAL. */) |
1073 | (symbol, newval) | |
d9c2a0f2 | 1074 | register Lisp_Object symbol, newval; |
05ef7169 | 1075 | { |
2829d05f | 1076 | return set_internal (symbol, newval, current_buffer, 0); |
05ef7169 RS |
1077 | } |
1078 | ||
1f35ce36 RS |
1079 | /* Return 1 if SYMBOL currently has a let-binding |
1080 | which was made in the buffer that is now current. */ | |
1081 | ||
1082 | static int | |
1083 | let_shadows_buffer_binding_p (symbol) | |
1084 | Lisp_Object symbol; | |
1085 | { | |
1086 | struct specbinding *p; | |
1087 | ||
1088 | for (p = specpdl_ptr - 1; p >= specpdl; p--) | |
f35d5bad GM |
1089 | if (p->func == NULL |
1090 | && CONSP (p->symbol)) | |
1091 | { | |
1092 | Lisp_Object let_bound_symbol = XCAR (p->symbol); | |
1093 | if ((EQ (symbol, let_bound_symbol) | |
1094 | || (XSYMBOL (let_bound_symbol)->indirect_variable | |
1095 | && EQ (symbol, indirect_variable (let_bound_symbol)))) | |
1096 | && XBUFFER (XCDR (XCDR (p->symbol))) == current_buffer) | |
1097 | break; | |
1098 | } | |
1f35ce36 | 1099 | |
f35d5bad | 1100 | return p >= specpdl; |
1f35ce36 RS |
1101 | } |
1102 | ||
25638b07 | 1103 | /* Store the value NEWVAL into SYMBOL. |
2829d05f RS |
1104 | If buffer-locality is an issue, BUF specifies which buffer to use. |
1105 | (0 stands for the current buffer.) | |
1106 | ||
05ef7169 RS |
1107 | If BINDFLAG is zero, then if this symbol is supposed to become |
1108 | local in every buffer where it is set, then we make it local. | |
1109 | If BINDFLAG is nonzero, we don't do that. */ | |
1110 | ||
1111 | Lisp_Object | |
2829d05f | 1112 | set_internal (symbol, newval, buf, bindflag) |
05ef7169 | 1113 | register Lisp_Object symbol, newval; |
2829d05f | 1114 | struct buffer *buf; |
05ef7169 | 1115 | int bindflag; |
7921925c | 1116 | { |
1bfcade3 | 1117 | int voide = EQ (newval, Qunbound); |
7921925c | 1118 | |
4c47c973 | 1119 | register Lisp_Object valcontents, innercontents, tem1, current_alist_element; |
7921925c | 1120 | |
2829d05f RS |
1121 | if (buf == 0) |
1122 | buf = current_buffer; | |
1123 | ||
1124 | /* If restoring in a dead buffer, do nothing. */ | |
1125 | if (NILP (buf->name)) | |
1126 | return newval; | |
1127 | ||
b7826503 | 1128 | CHECK_SYMBOL (symbol); |
f35d5bad GM |
1129 | if (SYMBOL_CONSTANT_P (symbol) |
1130 | && (NILP (Fkeywordp (symbol)) | |
1131 | || !EQ (newval, SYMBOL_VALUE (symbol)))) | |
d9c2a0f2 | 1132 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); |
4c47c973 | 1133 | |
f35d5bad GM |
1134 | innercontents = valcontents = SYMBOL_VALUE (symbol); |
1135 | ||
e9ebc175 | 1136 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1137 | { |
999b32fd | 1138 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 | 1139 | int idx = PER_BUFFER_IDX (offset); |
999b32fd GM |
1140 | if (idx > 0 |
1141 | && !bindflag | |
1142 | && !let_shadows_buffer_binding_p (symbol)) | |
f6cd0527 | 1143 | SET_PER_BUFFER_VALUE_P (buf, idx, 1); |
7921925c | 1144 | } |
e9ebc175 KH |
1145 | else if (BUFFER_LOCAL_VALUEP (valcontents) |
1146 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c | 1147 | { |
42e975f0 | 1148 | /* valcontents is a struct Lisp_Buffer_Local_Value. */ |
f35d5bad GM |
1149 | if (XSYMBOL (symbol)->indirect_variable) |
1150 | symbol = indirect_variable (symbol); | |
42e975f0 RS |
1151 | |
1152 | /* What binding is loaded right now? */ | |
b0c2d1c6 | 1153 | current_alist_element |
7539e11f | 1154 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
d8cafeb5 JB |
1155 | |
1156 | /* If the current buffer is not the buffer whose binding is | |
42e975f0 RS |
1157 | loaded, or if there may be frame-local bindings and the frame |
1158 | isn't the right one, or if it's a Lisp_Buffer_Local_Value and | |
1159 | the default binding is loaded, the loaded binding may be the | |
1160 | wrong one. */ | |
8801a864 KR |
1161 | if (!BUFFERP (XBUFFER_LOCAL_VALUE (valcontents)->buffer) |
1162 | || buf != XBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer) | |
42e975f0 RS |
1163 | || (XBUFFER_LOCAL_VALUE (valcontents)->check_frame |
1164 | && !EQ (selected_frame, XBUFFER_LOCAL_VALUE (valcontents)->frame)) | |
1165 | || (BUFFER_LOCAL_VALUEP (valcontents) | |
1166 | && EQ (XCAR (current_alist_element), | |
1167 | current_alist_element))) | |
7921925c | 1168 | { |
42e975f0 RS |
1169 | /* The currently loaded binding is not necessarily valid. |
1170 | We need to unload it, and choose a new binding. */ | |
1171 | ||
1172 | /* Write out `realvalue' to the old loaded binding. */ | |
d8cafeb5 | 1173 | Fsetcdr (current_alist_element, |
b0c2d1c6 | 1174 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); |
7921925c | 1175 | |
42e975f0 | 1176 | /* Find the new binding. */ |
2829d05f | 1177 | tem1 = Fassq (symbol, buf->local_var_alist); |
b0c2d1c6 RS |
1178 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 1; |
1179 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; | |
1180 | ||
a33ef3ab | 1181 | if (NILP (tem1)) |
d8cafeb5 JB |
1182 | { |
1183 | /* This buffer still sees the default value. */ | |
1184 | ||
1185 | /* If the variable is a Lisp_Some_Buffer_Local_Value, | |
05ef7169 | 1186 | or if this is `let' rather than `set', |
d8cafeb5 | 1187 | make CURRENT-ALIST-ELEMENT point to itself, |
1f35ce36 RS |
1188 | indicating that we're seeing the default value. |
1189 | Likewise if the variable has been let-bound | |
1190 | in the current buffer. */ | |
1191 | if (bindflag || SOME_BUFFER_LOCAL_VALUEP (valcontents) | |
1192 | || let_shadows_buffer_binding_p (symbol)) | |
b0c2d1c6 RS |
1193 | { |
1194 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
1195 | ||
1196 | if (XBUFFER_LOCAL_VALUE (valcontents)->check_frame) | |
1cc04aed GM |
1197 | tem1 = Fassq (symbol, |
1198 | XFRAME (selected_frame)->param_alist); | |
d8cafeb5 | 1199 | |
b0c2d1c6 RS |
1200 | if (! NILP (tem1)) |
1201 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 1; | |
1202 | else | |
1203 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
1204 | } | |
05ef7169 | 1205 | /* If it's a Lisp_Buffer_Local_Value, being set not bound, |
1f35ce36 RS |
1206 | and we're not within a let that was made for this buffer, |
1207 | create a new buffer-local binding for the variable. | |
1208 | That means, give this buffer a new assoc for a local value | |
42e975f0 | 1209 | and load that binding. */ |
d8cafeb5 JB |
1210 | else |
1211 | { | |
d9c2a0f2 | 1212 | tem1 = Fcons (symbol, Fcdr (current_alist_element)); |
2829d05f RS |
1213 | buf->local_var_alist |
1214 | = Fcons (tem1, buf->local_var_alist); | |
d8cafeb5 JB |
1215 | } |
1216 | } | |
b0c2d1c6 | 1217 | |
42e975f0 | 1218 | /* Record which binding is now loaded. */ |
f3fbd155 KR |
1219 | XSETCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr, |
1220 | tem1); | |
d8cafeb5 | 1221 | |
42e975f0 | 1222 | /* Set `buffer' and `frame' slots for thebinding now loaded. */ |
2829d05f | 1223 | XSETBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer, buf); |
1cc04aed | 1224 | XBUFFER_LOCAL_VALUE (valcontents)->frame = selected_frame; |
7921925c | 1225 | } |
4c47c973 | 1226 | innercontents = XBUFFER_LOCAL_VALUE (valcontents)->realvalue; |
7921925c | 1227 | } |
d8cafeb5 | 1228 | |
7921925c JB |
1229 | /* If storing void (making the symbol void), forward only through |
1230 | buffer-local indicator, not through Lisp_Objfwd, etc. */ | |
1231 | if (voide) | |
7a283f36 | 1232 | store_symval_forwarding (symbol, Qnil, newval, buf); |
7921925c | 1233 | else |
7a283f36 | 1234 | store_symval_forwarding (symbol, innercontents, newval, buf); |
4c47c973 GM |
1235 | |
1236 | /* If we just set a variable whose current binding is frame-local, | |
1237 | store the new value in the frame parameter too. */ | |
1238 | ||
1239 | if (BUFFER_LOCAL_VALUEP (valcontents) | |
1240 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
1241 | { | |
1242 | /* What binding is loaded right now? */ | |
1243 | current_alist_element | |
1244 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); | |
1245 | ||
1246 | /* If the current buffer is not the buffer whose binding is | |
1247 | loaded, or if there may be frame-local bindings and the frame | |
1248 | isn't the right one, or if it's a Lisp_Buffer_Local_Value and | |
1249 | the default binding is loaded, the loaded binding may be the | |
1250 | wrong one. */ | |
1251 | if (XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame) | |
f3fbd155 | 1252 | XSETCDR (current_alist_element, newval); |
4c47c973 | 1253 | } |
d8cafeb5 | 1254 | |
7921925c JB |
1255 | return newval; |
1256 | } | |
1257 | \f | |
1258 | /* Access or set a buffer-local symbol's default value. */ | |
1259 | ||
d9c2a0f2 | 1260 | /* Return the default value of SYMBOL, but don't check for voidness. |
1bfcade3 | 1261 | Return Qunbound if it is void. */ |
7921925c JB |
1262 | |
1263 | Lisp_Object | |
d9c2a0f2 EN |
1264 | default_value (symbol) |
1265 | Lisp_Object symbol; | |
7921925c JB |
1266 | { |
1267 | register Lisp_Object valcontents; | |
1268 | ||
b7826503 | 1269 | CHECK_SYMBOL (symbol); |
f35d5bad | 1270 | valcontents = SYMBOL_VALUE (symbol); |
7921925c JB |
1271 | |
1272 | /* For a built-in buffer-local variable, get the default value | |
1273 | rather than letting do_symval_forwarding get the current value. */ | |
e9ebc175 | 1274 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1275 | { |
999b32fd | 1276 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 GM |
1277 | if (PER_BUFFER_IDX (offset) != 0) |
1278 | return PER_BUFFER_DEFAULT (offset); | |
7921925c JB |
1279 | } |
1280 | ||
1281 | /* Handle user-created local variables. */ | |
e9ebc175 KH |
1282 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1283 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c JB |
1284 | { |
1285 | /* If var is set up for a buffer that lacks a local value for it, | |
1286 | the current value is nominally the default value. | |
42e975f0 | 1287 | But the `realvalue' slot may be more up to date, since |
7921925c JB |
1288 | ordinary setq stores just that slot. So use that. */ |
1289 | Lisp_Object current_alist_element, alist_element_car; | |
1290 | current_alist_element | |
7539e11f KR |
1291 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
1292 | alist_element_car = XCAR (current_alist_element); | |
7921925c | 1293 | if (EQ (alist_element_car, current_alist_element)) |
b0c2d1c6 | 1294 | return do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue); |
7921925c | 1295 | else |
7539e11f | 1296 | return XCDR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
7921925c JB |
1297 | } |
1298 | /* For other variables, get the current value. */ | |
1299 | return do_symval_forwarding (valcontents); | |
1300 | } | |
1301 | ||
1302 | DEFUN ("default-boundp", Fdefault_boundp, Sdefault_boundp, 1, 1, 0, | |
8c1a1077 PJ |
1303 | doc: /* Return t if SYMBOL has a non-void default value. |
1304 | This is the value that is seen in buffers that do not have their own values | |
1305 | for this variable. */) | |
1306 | (symbol) | |
d9c2a0f2 | 1307 | Lisp_Object symbol; |
7921925c JB |
1308 | { |
1309 | register Lisp_Object value; | |
1310 | ||
d9c2a0f2 | 1311 | value = default_value (symbol); |
1bfcade3 | 1312 | return (EQ (value, Qunbound) ? Qnil : Qt); |
7921925c JB |
1313 | } |
1314 | ||
1315 | DEFUN ("default-value", Fdefault_value, Sdefault_value, 1, 1, 0, | |
8c1a1077 PJ |
1316 | doc: /* Return SYMBOL's default value. |
1317 | This is the value that is seen in buffers that do not have their own values | |
1318 | for this variable. The default value is meaningful for variables with | |
1319 | local bindings in certain buffers. */) | |
1320 | (symbol) | |
d9c2a0f2 | 1321 | Lisp_Object symbol; |
7921925c JB |
1322 | { |
1323 | register Lisp_Object value; | |
1324 | ||
d9c2a0f2 | 1325 | value = default_value (symbol); |
1bfcade3 | 1326 | if (EQ (value, Qunbound)) |
d9c2a0f2 | 1327 | return Fsignal (Qvoid_variable, Fcons (symbol, Qnil)); |
7921925c JB |
1328 | return value; |
1329 | } | |
1330 | ||
1331 | DEFUN ("set-default", Fset_default, Sset_default, 2, 2, 0, | |
8c1a1077 PJ |
1332 | doc: /* Set SYMBOL's default value to VAL. SYMBOL and VAL are evaluated. |
1333 | The default value is seen in buffers that do not have their own values | |
1334 | for this variable. */) | |
1335 | (symbol, value) | |
d9c2a0f2 | 1336 | Lisp_Object symbol, value; |
7921925c JB |
1337 | { |
1338 | register Lisp_Object valcontents, current_alist_element, alist_element_buffer; | |
1339 | ||
b7826503 | 1340 | CHECK_SYMBOL (symbol); |
f35d5bad | 1341 | valcontents = SYMBOL_VALUE (symbol); |
7921925c JB |
1342 | |
1343 | /* Handle variables like case-fold-search that have special slots | |
1344 | in the buffer. Make them work apparently like Lisp_Buffer_Local_Value | |
1345 | variables. */ | |
e9ebc175 | 1346 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1347 | { |
999b32fd | 1348 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 | 1349 | int idx = PER_BUFFER_IDX (offset); |
7921925c | 1350 | |
f6cd0527 | 1351 | PER_BUFFER_DEFAULT (offset) = value; |
984ef137 KH |
1352 | |
1353 | /* If this variable is not always local in all buffers, | |
1354 | set it in the buffers that don't nominally have a local value. */ | |
999b32fd | 1355 | if (idx > 0) |
7921925c | 1356 | { |
999b32fd GM |
1357 | struct buffer *b; |
1358 | ||
7921925c | 1359 | for (b = all_buffers; b; b = b->next) |
f6cd0527 GM |
1360 | if (!PER_BUFFER_VALUE_P (b, idx)) |
1361 | PER_BUFFER_VALUE (b, offset) = value; | |
7921925c JB |
1362 | } |
1363 | return value; | |
1364 | } | |
1365 | ||
e9ebc175 KH |
1366 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1367 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 1368 | return Fset (symbol, value); |
7921925c | 1369 | |
42e975f0 | 1370 | /* Store new value into the DEFAULT-VALUE slot. */ |
f3fbd155 | 1371 | XSETCDR (XBUFFER_LOCAL_VALUE (valcontents)->cdr, value); |
7921925c | 1372 | |
42e975f0 | 1373 | /* If the default binding is now loaded, set the REALVALUE slot too. */ |
8d4afcac | 1374 | current_alist_element |
7539e11f | 1375 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
7921925c JB |
1376 | alist_element_buffer = Fcar (current_alist_element); |
1377 | if (EQ (alist_element_buffer, current_alist_element)) | |
7a283f36 GM |
1378 | store_symval_forwarding (symbol, |
1379 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue, | |
1380 | value, NULL); | |
7921925c JB |
1381 | |
1382 | return value; | |
1383 | } | |
1384 | ||
1385 | DEFUN ("setq-default", Fsetq_default, Ssetq_default, 2, UNEVALLED, 0, | |
8c1a1077 PJ |
1386 | doc: /* Set the default value of variable VAR to VALUE. |
1387 | VAR, the variable name, is literal (not evaluated); | |
1388 | VALUE is an expression and it is evaluated. | |
1389 | The default value of a variable is seen in buffers | |
1390 | that do not have their own values for the variable. | |
1391 | ||
1392 | More generally, you can use multiple variables and values, as in | |
1393 | (setq-default SYMBOL VALUE SYMBOL VALUE...) | |
1394 | This sets each SYMBOL's default value to the corresponding VALUE. | |
1395 | The VALUE for the Nth SYMBOL can refer to the new default values | |
f9d1e467 PJ |
1396 | of previous SYMs. |
1397 | usage: (setq-default SYMBOL VALUE [SYMBOL VALUE...]) */) | |
8c1a1077 | 1398 | (args) |
7921925c JB |
1399 | Lisp_Object args; |
1400 | { | |
1401 | register Lisp_Object args_left; | |
d9c2a0f2 | 1402 | register Lisp_Object val, symbol; |
7921925c JB |
1403 | struct gcpro gcpro1; |
1404 | ||
a33ef3ab | 1405 | if (NILP (args)) |
7921925c JB |
1406 | return Qnil; |
1407 | ||
1408 | args_left = args; | |
1409 | GCPRO1 (args); | |
1410 | ||
1411 | do | |
1412 | { | |
1413 | val = Feval (Fcar (Fcdr (args_left))); | |
d9c2a0f2 EN |
1414 | symbol = Fcar (args_left); |
1415 | Fset_default (symbol, val); | |
7921925c JB |
1416 | args_left = Fcdr (Fcdr (args_left)); |
1417 | } | |
a33ef3ab | 1418 | while (!NILP (args_left)); |
7921925c JB |
1419 | |
1420 | UNGCPRO; | |
1421 | return val; | |
1422 | } | |
1423 | \f | |
a5ca2b75 JB |
1424 | /* Lisp functions for creating and removing buffer-local variables. */ |
1425 | ||
7921925c | 1426 | DEFUN ("make-variable-buffer-local", Fmake_variable_buffer_local, Smake_variable_buffer_local, |
8c1a1077 PJ |
1427 | 1, 1, "vMake Variable Buffer Local: ", |
1428 | doc: /* Make VARIABLE become buffer-local whenever it is set. | |
1429 | At any time, the value for the current buffer is in effect, | |
1430 | unless the variable has never been set in this buffer, | |
1431 | in which case the default value is in effect. | |
1432 | Note that binding the variable with `let', or setting it while | |
1433 | a `let'-style binding made in this buffer is in effect, | |
1434 | does not make the variable buffer-local. | |
1435 | ||
1436 | The function `default-value' gets the default value and `set-default' sets it. */) | |
1437 | (variable) | |
d9c2a0f2 | 1438 | register Lisp_Object variable; |
7921925c | 1439 | { |
8d4afcac | 1440 | register Lisp_Object tem, valcontents, newval; |
7921925c | 1441 | |
b7826503 | 1442 | CHECK_SYMBOL (variable); |
7921925c | 1443 | |
f35d5bad | 1444 | valcontents = SYMBOL_VALUE (variable); |
d9c2a0f2 EN |
1445 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents)) |
1446 | error ("Symbol %s may not be buffer-local", XSYMBOL (variable)->name->data); | |
7921925c | 1447 | |
e9ebc175 | 1448 | if (BUFFER_LOCAL_VALUEP (valcontents) || BUFFER_OBJFWDP (valcontents)) |
d9c2a0f2 | 1449 | return variable; |
e9ebc175 | 1450 | if (SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c | 1451 | { |
f35d5bad | 1452 | XMISCTYPE (SYMBOL_VALUE (variable)) = Lisp_Misc_Buffer_Local_Value; |
d9c2a0f2 | 1453 | return variable; |
7921925c JB |
1454 | } |
1455 | if (EQ (valcontents, Qunbound)) | |
f35d5bad | 1456 | SET_SYMBOL_VALUE (variable, Qnil); |
d9c2a0f2 | 1457 | tem = Fcons (Qnil, Fsymbol_value (variable)); |
f3fbd155 | 1458 | XSETCAR (tem, tem); |
8d4afcac | 1459 | newval = allocate_misc (); |
324a6eef | 1460 | XMISCTYPE (newval) = Lisp_Misc_Buffer_Local_Value; |
f35d5bad | 1461 | XBUFFER_LOCAL_VALUE (newval)->realvalue = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1462 | XBUFFER_LOCAL_VALUE (newval)->buffer = Fcurrent_buffer (); |
1463 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
42e975f0 | 1464 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; |
b0c2d1c6 RS |
1465 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; |
1466 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 0; | |
1467 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
f35d5bad | 1468 | SET_SYMBOL_VALUE (variable, newval); |
d9c2a0f2 | 1469 | return variable; |
7921925c JB |
1470 | } |
1471 | ||
1472 | DEFUN ("make-local-variable", Fmake_local_variable, Smake_local_variable, | |
8c1a1077 PJ |
1473 | 1, 1, "vMake Local Variable: ", |
1474 | doc: /* Make VARIABLE have a separate value in the current buffer. | |
1475 | Other buffers will continue to share a common default value. | |
1476 | \(The buffer-local value of VARIABLE starts out as the same value | |
1477 | VARIABLE previously had. If VARIABLE was void, it remains void.\) | |
1478 | See also `make-variable-buffer-local'. | |
1479 | ||
1480 | If the variable is already arranged to become local when set, | |
1481 | this function causes a local value to exist for this buffer, | |
1482 | just as setting the variable would do. | |
1483 | ||
1484 | This function returns VARIABLE, and therefore | |
1485 | (set (make-local-variable 'VARIABLE) VALUE-EXP) | |
1486 | works. | |
1487 | ||
1488 | Do not use `make-local-variable' to make a hook variable buffer-local. | |
515f3f25 | 1489 | Instead, use `add-hook' and specify t for the LOCAL argument. */) |
8c1a1077 | 1490 | (variable) |
d9c2a0f2 | 1491 | register Lisp_Object variable; |
7921925c JB |
1492 | { |
1493 | register Lisp_Object tem, valcontents; | |
1494 | ||
b7826503 | 1495 | CHECK_SYMBOL (variable); |
7921925c | 1496 | |
f35d5bad | 1497 | valcontents = SYMBOL_VALUE (variable); |
d9c2a0f2 EN |
1498 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents)) |
1499 | error ("Symbol %s may not be buffer-local", XSYMBOL (variable)->name->data); | |
7921925c | 1500 | |
e9ebc175 | 1501 | if (BUFFER_LOCAL_VALUEP (valcontents) || BUFFER_OBJFWDP (valcontents)) |
7921925c | 1502 | { |
d9c2a0f2 | 1503 | tem = Fboundp (variable); |
7403b5c8 | 1504 | |
7921925c JB |
1505 | /* Make sure the symbol has a local value in this particular buffer, |
1506 | by setting it to the same value it already has. */ | |
d9c2a0f2 EN |
1507 | Fset (variable, (EQ (tem, Qt) ? Fsymbol_value (variable) : Qunbound)); |
1508 | return variable; | |
7921925c | 1509 | } |
42e975f0 | 1510 | /* Make sure symbol is set up to hold per-buffer values. */ |
e9ebc175 | 1511 | if (!SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c | 1512 | { |
8d4afcac | 1513 | Lisp_Object newval; |
7921925c | 1514 | tem = Fcons (Qnil, do_symval_forwarding (valcontents)); |
f3fbd155 | 1515 | XSETCAR (tem, tem); |
8d4afcac | 1516 | newval = allocate_misc (); |
324a6eef | 1517 | XMISCTYPE (newval) = Lisp_Misc_Some_Buffer_Local_Value; |
f35d5bad | 1518 | XBUFFER_LOCAL_VALUE (newval)->realvalue = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1519 | XBUFFER_LOCAL_VALUE (newval)->buffer = Qnil; |
1520 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
1521 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; | |
1522 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; | |
1523 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 0; | |
1524 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
f35d5bad | 1525 | SET_SYMBOL_VALUE (variable, newval);; |
7921925c | 1526 | } |
42e975f0 | 1527 | /* Make sure this buffer has its own value of symbol. */ |
d9c2a0f2 | 1528 | tem = Fassq (variable, current_buffer->local_var_alist); |
a33ef3ab | 1529 | if (NILP (tem)) |
7921925c | 1530 | { |
a5d004a1 RS |
1531 | /* Swap out any local binding for some other buffer, and make |
1532 | sure the current value is permanently recorded, if it's the | |
1533 | default value. */ | |
d9c2a0f2 | 1534 | find_symbol_value (variable); |
a5d004a1 | 1535 | |
7921925c | 1536 | current_buffer->local_var_alist |
f35d5bad | 1537 | = Fcons (Fcons (variable, XCDR (XBUFFER_LOCAL_VALUE (SYMBOL_VALUE (variable))->cdr)), |
7921925c JB |
1538 | current_buffer->local_var_alist); |
1539 | ||
1540 | /* Make sure symbol does not think it is set up for this buffer; | |
42e975f0 | 1541 | force it to look once again for this buffer's value. */ |
7921925c | 1542 | { |
8d4afcac | 1543 | Lisp_Object *pvalbuf; |
a5d004a1 | 1544 | |
f35d5bad | 1545 | valcontents = SYMBOL_VALUE (variable); |
a5d004a1 | 1546 | |
b0c2d1c6 | 1547 | pvalbuf = &XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
8d4afcac KH |
1548 | if (current_buffer == XBUFFER (*pvalbuf)) |
1549 | *pvalbuf = Qnil; | |
b0c2d1c6 | 1550 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; |
7921925c | 1551 | } |
7921925c | 1552 | } |
a5ca2b75 | 1553 | |
42e975f0 RS |
1554 | /* If the symbol forwards into a C variable, then load the binding |
1555 | for this buffer now. If C code modifies the variable before we | |
1556 | load the binding in, then that new value will clobber the default | |
1557 | binding the next time we unload it. */ | |
f35d5bad | 1558 | valcontents = XBUFFER_LOCAL_VALUE (SYMBOL_VALUE (variable))->realvalue; |
e9ebc175 | 1559 | if (INTFWDP (valcontents) || BOOLFWDP (valcontents) || OBJFWDP (valcontents)) |
f35d5bad | 1560 | swap_in_symval_forwarding (variable, SYMBOL_VALUE (variable)); |
a5ca2b75 | 1561 | |
d9c2a0f2 | 1562 | return variable; |
7921925c JB |
1563 | } |
1564 | ||
1565 | DEFUN ("kill-local-variable", Fkill_local_variable, Skill_local_variable, | |
8c1a1077 PJ |
1566 | 1, 1, "vKill Local Variable: ", |
1567 | doc: /* Make VARIABLE no longer have a separate value in the current buffer. | |
1568 | From now on the default value will apply in this buffer. */) | |
1569 | (variable) | |
d9c2a0f2 | 1570 | register Lisp_Object variable; |
7921925c JB |
1571 | { |
1572 | register Lisp_Object tem, valcontents; | |
1573 | ||
b7826503 | 1574 | CHECK_SYMBOL (variable); |
7921925c | 1575 | |
f35d5bad | 1576 | valcontents = SYMBOL_VALUE (variable); |
7921925c | 1577 | |
e9ebc175 | 1578 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1579 | { |
999b32fd | 1580 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 | 1581 | int idx = PER_BUFFER_IDX (offset); |
7921925c | 1582 | |
999b32fd | 1583 | if (idx > 0) |
7921925c | 1584 | { |
f6cd0527 GM |
1585 | SET_PER_BUFFER_VALUE_P (current_buffer, idx, 0); |
1586 | PER_BUFFER_VALUE (current_buffer, offset) | |
1587 | = PER_BUFFER_DEFAULT (offset); | |
7921925c | 1588 | } |
d9c2a0f2 | 1589 | return variable; |
7921925c JB |
1590 | } |
1591 | ||
e9ebc175 KH |
1592 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1593 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 1594 | return variable; |
7921925c | 1595 | |
42e975f0 | 1596 | /* Get rid of this buffer's alist element, if any. */ |
7921925c | 1597 | |
d9c2a0f2 | 1598 | tem = Fassq (variable, current_buffer->local_var_alist); |
a33ef3ab | 1599 | if (!NILP (tem)) |
8d4afcac KH |
1600 | current_buffer->local_var_alist |
1601 | = Fdelq (tem, current_buffer->local_var_alist); | |
7921925c | 1602 | |
42e975f0 RS |
1603 | /* If the symbol is set up with the current buffer's binding |
1604 | loaded, recompute its value. We have to do it now, or else | |
1605 | forwarded objects won't work right. */ | |
7921925c | 1606 | { |
8d4afcac | 1607 | Lisp_Object *pvalbuf; |
f35d5bad | 1608 | valcontents = SYMBOL_VALUE (variable); |
b0c2d1c6 | 1609 | pvalbuf = &XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
8d4afcac | 1610 | if (current_buffer == XBUFFER (*pvalbuf)) |
79c83e03 KH |
1611 | { |
1612 | *pvalbuf = Qnil; | |
b0c2d1c6 | 1613 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; |
978dd578 | 1614 | find_symbol_value (variable); |
79c83e03 | 1615 | } |
7921925c JB |
1616 | } |
1617 | ||
d9c2a0f2 | 1618 | return variable; |
7921925c | 1619 | } |
62476adc | 1620 | |
b0c2d1c6 RS |
1621 | /* Lisp functions for creating and removing buffer-local variables. */ |
1622 | ||
1623 | DEFUN ("make-variable-frame-local", Fmake_variable_frame_local, Smake_variable_frame_local, | |
8c1a1077 PJ |
1624 | 1, 1, "vMake Variable Frame Local: ", |
1625 | doc: /* Enable VARIABLE to have frame-local bindings. | |
1626 | When a frame-local binding exists in the current frame, | |
1627 | it is in effect whenever the current buffer has no buffer-local binding. | |
1628 | A frame-local binding is actual a frame parameter value; | |
1629 | thus, any given frame has a local binding for VARIABLE | |
1630 | if it has a value for the frame parameter named VARIABLE. | |
1631 | See `modify-frame-parameters'. */) | |
1632 | (variable) | |
b0c2d1c6 RS |
1633 | register Lisp_Object variable; |
1634 | { | |
1635 | register Lisp_Object tem, valcontents, newval; | |
1636 | ||
b7826503 | 1637 | CHECK_SYMBOL (variable); |
b0c2d1c6 | 1638 | |
f35d5bad | 1639 | valcontents = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1640 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents) |
1641 | || BUFFER_OBJFWDP (valcontents)) | |
1642 | error ("Symbol %s may not be frame-local", XSYMBOL (variable)->name->data); | |
1643 | ||
1644 | if (BUFFER_LOCAL_VALUEP (valcontents) | |
1645 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
42e975f0 RS |
1646 | { |
1647 | XBUFFER_LOCAL_VALUE (valcontents)->check_frame = 1; | |
1648 | return variable; | |
1649 | } | |
b0c2d1c6 RS |
1650 | |
1651 | if (EQ (valcontents, Qunbound)) | |
f35d5bad | 1652 | SET_SYMBOL_VALUE (variable, Qnil); |
b0c2d1c6 | 1653 | tem = Fcons (Qnil, Fsymbol_value (variable)); |
f3fbd155 | 1654 | XSETCAR (tem, tem); |
b0c2d1c6 RS |
1655 | newval = allocate_misc (); |
1656 | XMISCTYPE (newval) = Lisp_Misc_Some_Buffer_Local_Value; | |
f35d5bad | 1657 | XBUFFER_LOCAL_VALUE (newval)->realvalue = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1658 | XBUFFER_LOCAL_VALUE (newval)->buffer = Qnil; |
1659 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
1660 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; | |
1661 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; | |
1662 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 1; | |
1663 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
f35d5bad | 1664 | SET_SYMBOL_VALUE (variable, newval); |
b0c2d1c6 RS |
1665 | return variable; |
1666 | } | |
1667 | ||
62476adc | 1668 | DEFUN ("local-variable-p", Flocal_variable_p, Slocal_variable_p, |
8c1a1077 PJ |
1669 | 1, 2, 0, |
1670 | doc: /* Non-nil if VARIABLE has a local binding in buffer BUFFER. | |
1671 | BUFFER defaults to the current buffer. */) | |
1672 | (variable, buffer) | |
d9c2a0f2 | 1673 | register Lisp_Object variable, buffer; |
62476adc RS |
1674 | { |
1675 | Lisp_Object valcontents; | |
c48ead86 KH |
1676 | register struct buffer *buf; |
1677 | ||
1678 | if (NILP (buffer)) | |
1679 | buf = current_buffer; | |
1680 | else | |
1681 | { | |
b7826503 | 1682 | CHECK_BUFFER (buffer); |
c48ead86 KH |
1683 | buf = XBUFFER (buffer); |
1684 | } | |
62476adc | 1685 | |
b7826503 | 1686 | CHECK_SYMBOL (variable); |
62476adc | 1687 | |
f35d5bad | 1688 | valcontents = SYMBOL_VALUE (variable); |
c48ead86 | 1689 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1e5f16fa | 1690 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
c48ead86 KH |
1691 | { |
1692 | Lisp_Object tail, elt; | |
f35d5bad GM |
1693 | |
1694 | variable = indirect_variable (variable); | |
7539e11f | 1695 | for (tail = buf->local_var_alist; CONSP (tail); tail = XCDR (tail)) |
c48ead86 | 1696 | { |
7539e11f KR |
1697 | elt = XCAR (tail); |
1698 | if (EQ (variable, XCAR (elt))) | |
c48ead86 KH |
1699 | return Qt; |
1700 | } | |
1701 | } | |
1702 | if (BUFFER_OBJFWDP (valcontents)) | |
1703 | { | |
1704 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
f6cd0527 GM |
1705 | int idx = PER_BUFFER_IDX (offset); |
1706 | if (idx == -1 || PER_BUFFER_VALUE_P (buf, idx)) | |
c48ead86 KH |
1707 | return Qt; |
1708 | } | |
1709 | return Qnil; | |
62476adc | 1710 | } |
f4f04cee RS |
1711 | |
1712 | DEFUN ("local-variable-if-set-p", Flocal_variable_if_set_p, Slocal_variable_if_set_p, | |
8c1a1077 PJ |
1713 | 1, 2, 0, |
1714 | doc: /* Non-nil if VARIABLE will be local in buffer BUFFER if it is set there. | |
1715 | BUFFER defaults to the current buffer. */) | |
1716 | (variable, buffer) | |
d9c2a0f2 | 1717 | register Lisp_Object variable, buffer; |
f4f04cee RS |
1718 | { |
1719 | Lisp_Object valcontents; | |
1720 | register struct buffer *buf; | |
1721 | ||
1722 | if (NILP (buffer)) | |
1723 | buf = current_buffer; | |
1724 | else | |
1725 | { | |
b7826503 | 1726 | CHECK_BUFFER (buffer); |
f4f04cee RS |
1727 | buf = XBUFFER (buffer); |
1728 | } | |
1729 | ||
b7826503 | 1730 | CHECK_SYMBOL (variable); |
f4f04cee | 1731 | |
f35d5bad | 1732 | valcontents = SYMBOL_VALUE (variable); |
f4f04cee RS |
1733 | |
1734 | /* This means that make-variable-buffer-local was done. */ | |
1735 | if (BUFFER_LOCAL_VALUEP (valcontents)) | |
1736 | return Qt; | |
1737 | /* All these slots become local if they are set. */ | |
1738 | if (BUFFER_OBJFWDP (valcontents)) | |
1739 | return Qt; | |
1740 | if (SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
1741 | { | |
1742 | Lisp_Object tail, elt; | |
7539e11f | 1743 | for (tail = buf->local_var_alist; CONSP (tail); tail = XCDR (tail)) |
f4f04cee | 1744 | { |
7539e11f KR |
1745 | elt = XCAR (tail); |
1746 | if (EQ (variable, XCAR (elt))) | |
f4f04cee RS |
1747 | return Qt; |
1748 | } | |
1749 | } | |
1750 | return Qnil; | |
1751 | } | |
7921925c | 1752 | \f |
ffd56f97 JB |
1753 | /* Find the function at the end of a chain of symbol function indirections. */ |
1754 | ||
1755 | /* If OBJECT is a symbol, find the end of its function chain and | |
1756 | return the value found there. If OBJECT is not a symbol, just | |
1757 | return it. If there is a cycle in the function chain, signal a | |
1758 | cyclic-function-indirection error. | |
1759 | ||
1760 | This is like Findirect_function, except that it doesn't signal an | |
1761 | error if the chain ends up unbound. */ | |
1762 | Lisp_Object | |
a2932990 | 1763 | indirect_function (object) |
62476adc | 1764 | register Lisp_Object object; |
ffd56f97 | 1765 | { |
eb8c3be9 | 1766 | Lisp_Object tortoise, hare; |
ffd56f97 | 1767 | |
eb8c3be9 | 1768 | hare = tortoise = object; |
ffd56f97 JB |
1769 | |
1770 | for (;;) | |
1771 | { | |
e9ebc175 | 1772 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
1773 | break; |
1774 | hare = XSYMBOL (hare)->function; | |
e9ebc175 | 1775 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
1776 | break; |
1777 | hare = XSYMBOL (hare)->function; | |
1778 | ||
eb8c3be9 | 1779 | tortoise = XSYMBOL (tortoise)->function; |
ffd56f97 | 1780 | |
eb8c3be9 | 1781 | if (EQ (hare, tortoise)) |
ffd56f97 JB |
1782 | Fsignal (Qcyclic_function_indirection, Fcons (object, Qnil)); |
1783 | } | |
1784 | ||
1785 | return hare; | |
1786 | } | |
1787 | ||
1788 | DEFUN ("indirect-function", Findirect_function, Sindirect_function, 1, 1, 0, | |
8c1a1077 PJ |
1789 | doc: /* Return the function at the end of OBJECT's function chain. |
1790 | If OBJECT is a symbol, follow all function indirections and return the final | |
1791 | function binding. | |
1792 | If OBJECT is not a symbol, just return it. | |
1793 | Signal a void-function error if the final symbol is unbound. | |
1794 | Signal a cyclic-function-indirection error if there is a loop in the | |
1795 | function chain of symbols. */) | |
1796 | (object) | |
1797 | register Lisp_Object object; | |
ffd56f97 JB |
1798 | { |
1799 | Lisp_Object result; | |
1800 | ||
1801 | result = indirect_function (object); | |
1802 | ||
1803 | if (EQ (result, Qunbound)) | |
1804 | return Fsignal (Qvoid_function, Fcons (object, Qnil)); | |
1805 | return result; | |
1806 | } | |
1807 | \f | |
7921925c JB |
1808 | /* Extract and set vector and string elements */ |
1809 | ||
1810 | DEFUN ("aref", Faref, Saref, 2, 2, 0, | |
8c1a1077 PJ |
1811 | doc: /* Return the element of ARRAY at index IDX. |
1812 | ARRAY may be a vector, a string, a char-table, a bool-vector, | |
1813 | or a byte-code object. IDX starts at 0. */) | |
1814 | (array, idx) | |
7921925c JB |
1815 | register Lisp_Object array; |
1816 | Lisp_Object idx; | |
1817 | { | |
1818 | register int idxval; | |
1819 | ||
b7826503 | 1820 | CHECK_NUMBER (idx); |
7921925c | 1821 | idxval = XINT (idx); |
e9ebc175 | 1822 | if (STRINGP (array)) |
7921925c | 1823 | { |
25638b07 RS |
1824 | int c, idxval_byte; |
1825 | ||
c24e4efe KH |
1826 | if (idxval < 0 || idxval >= XSTRING (array)->size) |
1827 | args_out_of_range (array, idx); | |
25638b07 RS |
1828 | if (! STRING_MULTIBYTE (array)) |
1829 | return make_number ((unsigned char) XSTRING (array)->data[idxval]); | |
1830 | idxval_byte = string_char_to_byte (array, idxval); | |
1831 | ||
1832 | c = STRING_CHAR (&XSTRING (array)->data[idxval_byte], | |
fc932ac6 | 1833 | STRING_BYTES (XSTRING (array)) - idxval_byte); |
25638b07 | 1834 | return make_number (c); |
7921925c | 1835 | } |
4d276982 RS |
1836 | else if (BOOL_VECTOR_P (array)) |
1837 | { | |
1838 | int val; | |
4d276982 RS |
1839 | |
1840 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
1841 | args_out_of_range (array, idx); | |
1842 | ||
68be917d KH |
1843 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BITS_PER_CHAR]; |
1844 | return (val & (1 << (idxval % BITS_PER_CHAR)) ? Qt : Qnil); | |
4d276982 RS |
1845 | } |
1846 | else if (CHAR_TABLE_P (array)) | |
1847 | { | |
e6e1f521 KH |
1848 | CHECK_CHARACTER (idx); |
1849 | return CHAR_TABLE_REF (array, idxval); | |
4d276982 | 1850 | } |
7921925c | 1851 | else |
c24e4efe | 1852 | { |
6bbd7a29 | 1853 | int size = 0; |
7f358972 RS |
1854 | if (VECTORP (array)) |
1855 | size = XVECTOR (array)->size; | |
1856 | else if (COMPILEDP (array)) | |
1857 | size = XVECTOR (array)->size & PSEUDOVECTOR_SIZE_MASK; | |
1858 | else | |
1859 | wrong_type_argument (Qarrayp, array); | |
1860 | ||
1861 | if (idxval < 0 || idxval >= size) | |
c24e4efe KH |
1862 | args_out_of_range (array, idx); |
1863 | return XVECTOR (array)->contents[idxval]; | |
1864 | } | |
7921925c JB |
1865 | } |
1866 | ||
3c9de1af KH |
1867 | /* Don't use alloca for relocating string data larger than this, lest |
1868 | we overflow their stack. The value is the same as what used in | |
1869 | fns.c for base64 handling. */ | |
1870 | #define MAX_ALLOCA 16*1024 | |
1871 | ||
7921925c | 1872 | DEFUN ("aset", Faset, Saset, 3, 3, 0, |
8c1a1077 PJ |
1873 | doc: /* Store into the element of ARRAY at index IDX the value NEWELT. |
1874 | ARRAY may be a vector, a string, a char-table or a bool-vector. | |
1875 | IDX starts at 0. */) | |
1876 | (array, idx, newelt) | |
7921925c JB |
1877 | register Lisp_Object array; |
1878 | Lisp_Object idx, newelt; | |
1879 | { | |
1880 | register int idxval; | |
1881 | ||
b7826503 | 1882 | CHECK_NUMBER (idx); |
7921925c | 1883 | idxval = XINT (idx); |
4d276982 RS |
1884 | if (!VECTORP (array) && !STRINGP (array) && !BOOL_VECTOR_P (array) |
1885 | && ! CHAR_TABLE_P (array)) | |
7921925c | 1886 | array = wrong_type_argument (Qarrayp, array); |
7921925c JB |
1887 | CHECK_IMPURE (array); |
1888 | ||
e9ebc175 | 1889 | if (VECTORP (array)) |
c24e4efe KH |
1890 | { |
1891 | if (idxval < 0 || idxval >= XVECTOR (array)->size) | |
1892 | args_out_of_range (array, idx); | |
1893 | XVECTOR (array)->contents[idxval] = newelt; | |
1894 | } | |
4d276982 RS |
1895 | else if (BOOL_VECTOR_P (array)) |
1896 | { | |
1897 | int val; | |
4d276982 RS |
1898 | |
1899 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
1900 | args_out_of_range (array, idx); | |
1901 | ||
68be917d | 1902 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BITS_PER_CHAR]; |
4d276982 RS |
1903 | |
1904 | if (! NILP (newelt)) | |
68be917d | 1905 | val |= 1 << (idxval % BITS_PER_CHAR); |
4d276982 | 1906 | else |
68be917d KH |
1907 | val &= ~(1 << (idxval % BITS_PER_CHAR)); |
1908 | XBOOL_VECTOR (array)->data[idxval / BITS_PER_CHAR] = val; | |
4d276982 RS |
1909 | } |
1910 | else if (CHAR_TABLE_P (array)) | |
1911 | { | |
e6e1f521 KH |
1912 | CHECK_CHARACTER (idx); |
1913 | CHAR_TABLE_SET (array, idxval, newelt); | |
4d276982 | 1914 | } |
25638b07 RS |
1915 | else if (STRING_MULTIBYTE (array)) |
1916 | { | |
3c9de1af KH |
1917 | int idxval_byte, prev_bytes, new_bytes; |
1918 | unsigned char workbuf[MAX_MULTIBYTE_LENGTH], *p0 = workbuf, *p1; | |
25638b07 RS |
1919 | |
1920 | if (idxval < 0 || idxval >= XSTRING (array)->size) | |
1921 | args_out_of_range (array, idx); | |
b7826503 | 1922 | CHECK_NUMBER (newelt); |
25638b07 RS |
1923 | |
1924 | idxval_byte = string_char_to_byte (array, idxval); | |
3c9de1af KH |
1925 | p1 = &XSTRING (array)->data[idxval_byte]; |
1926 | PARSE_MULTIBYTE_SEQ (p1, nbytes - idxval_byte, prev_bytes); | |
1927 | new_bytes = CHAR_STRING (XINT (newelt), p0); | |
1928 | if (prev_bytes != new_bytes) | |
1929 | { | |
1930 | /* We must relocate the string data. */ | |
1931 | int nchars = XSTRING (array)->size; | |
1932 | int nbytes = STRING_BYTES (XSTRING (array)); | |
1933 | unsigned char *str; | |
1934 | ||
1935 | str = (nbytes <= MAX_ALLOCA | |
1936 | ? (unsigned char *) alloca (nbytes) | |
1937 | : (unsigned char *) xmalloc (nbytes)); | |
1938 | bcopy (XSTRING (array)->data, str, nbytes); | |
1939 | allocate_string_data (XSTRING (array), nchars, | |
1940 | nbytes + new_bytes - prev_bytes); | |
1941 | bcopy (str, XSTRING (array)->data, idxval_byte); | |
1942 | p1 = XSTRING (array)->data + idxval_byte; | |
1943 | bcopy (str + idxval_byte + prev_bytes, p1 + new_bytes, | |
1944 | nbytes - (idxval_byte + prev_bytes)); | |
1945 | if (nbytes > MAX_ALLOCA) | |
1946 | xfree (str); | |
1947 | clear_string_char_byte_cache (); | |
1948 | } | |
1949 | while (new_bytes--) | |
1950 | *p1++ = *p0++; | |
25638b07 | 1951 | } |
7921925c JB |
1952 | else |
1953 | { | |
c24e4efe KH |
1954 | if (idxval < 0 || idxval >= XSTRING (array)->size) |
1955 | args_out_of_range (array, idx); | |
b7826503 | 1956 | CHECK_NUMBER (newelt); |
3c9de1af KH |
1957 | |
1958 | if (XINT (newelt) < 0 || SINGLE_BYTE_CHAR_P (XINT (newelt))) | |
1959 | XSTRING (array)->data[idxval] = XINT (newelt); | |
1960 | else | |
1961 | { | |
1962 | /* We must relocate the string data while converting it to | |
1963 | multibyte. */ | |
1964 | int idxval_byte, prev_bytes, new_bytes; | |
1965 | unsigned char workbuf[MAX_MULTIBYTE_LENGTH], *p0 = workbuf, *p1; | |
1966 | unsigned char *origstr = XSTRING (array)->data, *str; | |
1967 | int nchars, nbytes; | |
1968 | ||
1969 | nchars = XSTRING (array)->size; | |
1970 | nbytes = idxval_byte = count_size_as_multibyte (origstr, idxval); | |
1971 | nbytes += count_size_as_multibyte (origstr + idxval, | |
1972 | nchars - idxval); | |
1973 | str = (nbytes <= MAX_ALLOCA | |
1974 | ? (unsigned char *) alloca (nbytes) | |
1975 | : (unsigned char *) xmalloc (nbytes)); | |
1976 | copy_text (XSTRING (array)->data, str, nchars, 0, 1); | |
1977 | PARSE_MULTIBYTE_SEQ (str + idxval_byte, nbytes - idxval_byte, | |
1978 | prev_bytes); | |
1979 | new_bytes = CHAR_STRING (XINT (newelt), p0); | |
1980 | allocate_string_data (XSTRING (array), nchars, | |
1981 | nbytes + new_bytes - prev_bytes); | |
1982 | bcopy (str, XSTRING (array)->data, idxval_byte); | |
1983 | p1 = XSTRING (array)->data + idxval_byte; | |
1984 | while (new_bytes--) | |
1985 | *p1++ = *p0++; | |
1986 | bcopy (str + idxval_byte + prev_bytes, p1, | |
1987 | nbytes - (idxval_byte + prev_bytes)); | |
1988 | if (nbytes > MAX_ALLOCA) | |
1989 | xfree (str); | |
1990 | clear_string_char_byte_cache (); | |
1991 | } | |
7921925c JB |
1992 | } |
1993 | ||
1994 | return newelt; | |
1995 | } | |
7921925c JB |
1996 | \f |
1997 | /* Arithmetic functions */ | |
1998 | ||
1999 | enum comparison { equal, notequal, less, grtr, less_or_equal, grtr_or_equal }; | |
2000 | ||
2001 | Lisp_Object | |
2002 | arithcompare (num1, num2, comparison) | |
2003 | Lisp_Object num1, num2; | |
2004 | enum comparison comparison; | |
2005 | { | |
6bbd7a29 | 2006 | double f1 = 0, f2 = 0; |
7921925c JB |
2007 | int floatp = 0; |
2008 | ||
b7826503 PJ |
2009 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1); |
2010 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2); | |
7921925c | 2011 | |
e9ebc175 | 2012 | if (FLOATP (num1) || FLOATP (num2)) |
7921925c JB |
2013 | { |
2014 | floatp = 1; | |
7539e11f KR |
2015 | f1 = (FLOATP (num1)) ? XFLOAT_DATA (num1) : XINT (num1); |
2016 | f2 = (FLOATP (num2)) ? XFLOAT_DATA (num2) : XINT (num2); | |
7921925c | 2017 | } |
7921925c JB |
2018 | |
2019 | switch (comparison) | |
2020 | { | |
2021 | case equal: | |
2022 | if (floatp ? f1 == f2 : XINT (num1) == XINT (num2)) | |
2023 | return Qt; | |
2024 | return Qnil; | |
2025 | ||
2026 | case notequal: | |
2027 | if (floatp ? f1 != f2 : XINT (num1) != XINT (num2)) | |
2028 | return Qt; | |
2029 | return Qnil; | |
2030 | ||
2031 | case less: | |
2032 | if (floatp ? f1 < f2 : XINT (num1) < XINT (num2)) | |
2033 | return Qt; | |
2034 | return Qnil; | |
2035 | ||
2036 | case less_or_equal: | |
2037 | if (floatp ? f1 <= f2 : XINT (num1) <= XINT (num2)) | |
2038 | return Qt; | |
2039 | return Qnil; | |
2040 | ||
2041 | case grtr: | |
2042 | if (floatp ? f1 > f2 : XINT (num1) > XINT (num2)) | |
2043 | return Qt; | |
2044 | return Qnil; | |
2045 | ||
2046 | case grtr_or_equal: | |
2047 | if (floatp ? f1 >= f2 : XINT (num1) >= XINT (num2)) | |
2048 | return Qt; | |
2049 | return Qnil; | |
25e40a4b JB |
2050 | |
2051 | default: | |
2052 | abort (); | |
7921925c JB |
2053 | } |
2054 | } | |
2055 | ||
2056 | DEFUN ("=", Feqlsign, Seqlsign, 2, 2, 0, | |
8c1a1077 PJ |
2057 | doc: /* Return t if two args, both numbers or markers, are equal. */) |
2058 | (num1, num2) | |
7921925c JB |
2059 | register Lisp_Object num1, num2; |
2060 | { | |
2061 | return arithcompare (num1, num2, equal); | |
2062 | } | |
2063 | ||
2064 | DEFUN ("<", Flss, Slss, 2, 2, 0, | |
8c1a1077 PJ |
2065 | doc: /* Return t if first arg is less than second arg. Both must be numbers or markers. */) |
2066 | (num1, num2) | |
7921925c JB |
2067 | register Lisp_Object num1, num2; |
2068 | { | |
2069 | return arithcompare (num1, num2, less); | |
2070 | } | |
2071 | ||
2072 | DEFUN (">", Fgtr, Sgtr, 2, 2, 0, | |
8c1a1077 PJ |
2073 | doc: /* Return t if first arg is greater than second arg. Both must be numbers or markers. */) |
2074 | (num1, num2) | |
7921925c JB |
2075 | register Lisp_Object num1, num2; |
2076 | { | |
2077 | return arithcompare (num1, num2, grtr); | |
2078 | } | |
2079 | ||
2080 | DEFUN ("<=", Fleq, Sleq, 2, 2, 0, | |
8c1a1077 PJ |
2081 | doc: /* Return t if first arg is less than or equal to second arg. |
2082 | Both must be numbers or markers. */) | |
2083 | (num1, num2) | |
7921925c JB |
2084 | register Lisp_Object num1, num2; |
2085 | { | |
2086 | return arithcompare (num1, num2, less_or_equal); | |
2087 | } | |
2088 | ||
2089 | DEFUN (">=", Fgeq, Sgeq, 2, 2, 0, | |
8c1a1077 PJ |
2090 | doc: /* Return t if first arg is greater than or equal to second arg. |
2091 | Both must be numbers or markers. */) | |
2092 | (num1, num2) | |
7921925c JB |
2093 | register Lisp_Object num1, num2; |
2094 | { | |
2095 | return arithcompare (num1, num2, grtr_or_equal); | |
2096 | } | |
2097 | ||
2098 | DEFUN ("/=", Fneq, Sneq, 2, 2, 0, | |
8c1a1077 PJ |
2099 | doc: /* Return t if first arg is not equal to second arg. Both must be numbers or markers. */) |
2100 | (num1, num2) | |
7921925c JB |
2101 | register Lisp_Object num1, num2; |
2102 | { | |
2103 | return arithcompare (num1, num2, notequal); | |
2104 | } | |
2105 | ||
8c1a1077 PJ |
2106 | DEFUN ("zerop", Fzerop, Szerop, 1, 1, 0, |
2107 | doc: /* Return t if NUMBER is zero. */) | |
2108 | (number) | |
d9c2a0f2 | 2109 | register Lisp_Object number; |
7921925c | 2110 | { |
b7826503 | 2111 | CHECK_NUMBER_OR_FLOAT (number); |
7921925c | 2112 | |
d9c2a0f2 | 2113 | if (FLOATP (number)) |
7921925c | 2114 | { |
7539e11f | 2115 | if (XFLOAT_DATA (number) == 0.0) |
7921925c JB |
2116 | return Qt; |
2117 | return Qnil; | |
2118 | } | |
7921925c | 2119 | |
d9c2a0f2 | 2120 | if (!XINT (number)) |
7921925c JB |
2121 | return Qt; |
2122 | return Qnil; | |
2123 | } | |
2124 | \f | |
34f4f6c6 | 2125 | /* Convert between long values and pairs of Lisp integers. */ |
51cf3e31 JB |
2126 | |
2127 | Lisp_Object | |
2128 | long_to_cons (i) | |
2129 | unsigned long i; | |
2130 | { | |
2131 | unsigned int top = i >> 16; | |
2132 | unsigned int bot = i & 0xFFFF; | |
2133 | if (top == 0) | |
2134 | return make_number (bot); | |
b42cfa11 | 2135 | if (top == (unsigned long)-1 >> 16) |
51cf3e31 JB |
2136 | return Fcons (make_number (-1), make_number (bot)); |
2137 | return Fcons (make_number (top), make_number (bot)); | |
2138 | } | |
2139 | ||
2140 | unsigned long | |
2141 | cons_to_long (c) | |
2142 | Lisp_Object c; | |
2143 | { | |
878a80cc | 2144 | Lisp_Object top, bot; |
51cf3e31 JB |
2145 | if (INTEGERP (c)) |
2146 | return XINT (c); | |
7539e11f KR |
2147 | top = XCAR (c); |
2148 | bot = XCDR (c); | |
51cf3e31 | 2149 | if (CONSP (bot)) |
7539e11f | 2150 | bot = XCAR (bot); |
51cf3e31 JB |
2151 | return ((XINT (top) << 16) | XINT (bot)); |
2152 | } | |
2153 | \f | |
f2980264 | 2154 | DEFUN ("number-to-string", Fnumber_to_string, Snumber_to_string, 1, 1, 0, |
8c1a1077 PJ |
2155 | doc: /* Convert NUMBER to a string by printing it in decimal. |
2156 | Uses a minus sign if negative. | |
2157 | NUMBER may be an integer or a floating point number. */) | |
2158 | (number) | |
d9c2a0f2 | 2159 | Lisp_Object number; |
7921925c | 2160 | { |
6030ce64 | 2161 | char buffer[VALBITS]; |
7921925c | 2162 | |
b7826503 | 2163 | CHECK_NUMBER_OR_FLOAT (number); |
7921925c | 2164 | |
d9c2a0f2 | 2165 | if (FLOATP (number)) |
7921925c JB |
2166 | { |
2167 | char pigbuf[350]; /* see comments in float_to_string */ | |
2168 | ||
7539e11f | 2169 | float_to_string (pigbuf, XFLOAT_DATA (number)); |
7403b5c8 | 2170 | return build_string (pigbuf); |
7921925c | 2171 | } |
7921925c | 2172 | |
e6c82a8d | 2173 | if (sizeof (int) == sizeof (EMACS_INT)) |
d9c2a0f2 | 2174 | sprintf (buffer, "%d", XINT (number)); |
e6c82a8d | 2175 | else if (sizeof (long) == sizeof (EMACS_INT)) |
dd8daec5 | 2176 | sprintf (buffer, "%ld", (long) XINT (number)); |
e6c82a8d RS |
2177 | else |
2178 | abort (); | |
7921925c JB |
2179 | return build_string (buffer); |
2180 | } | |
2181 | ||
3883fbeb RS |
2182 | INLINE static int |
2183 | digit_to_number (character, base) | |
2184 | int character, base; | |
2185 | { | |
2186 | int digit; | |
2187 | ||
2188 | if (character >= '0' && character <= '9') | |
2189 | digit = character - '0'; | |
2190 | else if (character >= 'a' && character <= 'z') | |
2191 | digit = character - 'a' + 10; | |
2192 | else if (character >= 'A' && character <= 'Z') | |
2193 | digit = character - 'A' + 10; | |
2194 | else | |
2195 | return -1; | |
2196 | ||
2197 | if (digit >= base) | |
2198 | return -1; | |
2199 | else | |
2200 | return digit; | |
2201 | } | |
2202 | ||
2203 | DEFUN ("string-to-number", Fstring_to_number, Sstring_to_number, 1, 2, 0, | |
8c1a1077 PJ |
2204 | doc: /* Convert STRING to a number by parsing it as a decimal number. |
2205 | This parses both integers and floating point numbers. | |
2206 | It ignores leading spaces and tabs. | |
2207 | ||
2208 | If BASE, interpret STRING as a number in that base. If BASE isn't | |
2209 | present, base 10 is used. BASE must be between 2 and 16 (inclusive). | |
2210 | If the base used is not 10, floating point is not recognized. */) | |
2211 | (string, base) | |
3883fbeb | 2212 | register Lisp_Object string, base; |
7921925c | 2213 | { |
3883fbeb | 2214 | register unsigned char *p; |
342858a5 GM |
2215 | register int b; |
2216 | int sign = 1; | |
2217 | Lisp_Object val; | |
25e40a4b | 2218 | |
b7826503 | 2219 | CHECK_STRING (string); |
7921925c | 2220 | |
3883fbeb RS |
2221 | if (NILP (base)) |
2222 | b = 10; | |
2223 | else | |
2224 | { | |
b7826503 | 2225 | CHECK_NUMBER (base); |
3883fbeb RS |
2226 | b = XINT (base); |
2227 | if (b < 2 || b > 16) | |
2228 | Fsignal (Qargs_out_of_range, Fcons (base, Qnil)); | |
2229 | } | |
2230 | ||
25e40a4b JB |
2231 | /* Skip any whitespace at the front of the number. Some versions of |
2232 | atoi do this anyway, so we might as well make Emacs lisp consistent. */ | |
342858a5 | 2233 | p = XSTRING (string)->data; |
0a3e4d65 | 2234 | while (*p == ' ' || *p == '\t') |
25e40a4b JB |
2235 | p++; |
2236 | ||
3883fbeb RS |
2237 | if (*p == '-') |
2238 | { | |
342858a5 | 2239 | sign = -1; |
3883fbeb RS |
2240 | p++; |
2241 | } | |
2242 | else if (*p == '+') | |
2243 | p++; | |
2244 | ||
8e36ae7f | 2245 | if (isfloat_string (p) && b == 10) |
342858a5 GM |
2246 | val = make_float (sign * atof (p)); |
2247 | else | |
3883fbeb | 2248 | { |
342858a5 GM |
2249 | double v = 0; |
2250 | ||
2251 | while (1) | |
2252 | { | |
2253 | int digit = digit_to_number (*p++, b); | |
2254 | if (digit < 0) | |
2255 | break; | |
2256 | v = v * b + digit; | |
2257 | } | |
2258 | ||
cb938d46 | 2259 | val = make_fixnum_or_float (sign * v); |
3883fbeb | 2260 | } |
342858a5 GM |
2261 | |
2262 | return val; | |
7921925c | 2263 | } |
3883fbeb | 2264 | |
7403b5c8 | 2265 | \f |
7921925c | 2266 | enum arithop |
7a283f36 GM |
2267 | { |
2268 | Aadd, | |
2269 | Asub, | |
2270 | Amult, | |
2271 | Adiv, | |
2272 | Alogand, | |
2273 | Alogior, | |
2274 | Alogxor, | |
2275 | Amax, | |
2276 | Amin | |
2277 | }; | |
2278 | ||
2279 | static Lisp_Object float_arith_driver P_ ((double, int, enum arithop, | |
2280 | int, Lisp_Object *)); | |
ad8d56b9 | 2281 | extern Lisp_Object fmod_float (); |
b06faa91 | 2282 | |
7921925c | 2283 | Lisp_Object |
87fbf902 | 2284 | arith_driver (code, nargs, args) |
7921925c JB |
2285 | enum arithop code; |
2286 | int nargs; | |
2287 | register Lisp_Object *args; | |
2288 | { | |
2289 | register Lisp_Object val; | |
2290 | register int argnum; | |
7a283f36 | 2291 | register EMACS_INT accum = 0; |
5260234d | 2292 | register EMACS_INT next; |
7921925c | 2293 | |
0220c518 | 2294 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2295 | { |
2296 | case Alogior: | |
2297 | case Alogxor: | |
2298 | case Aadd: | |
2299 | case Asub: | |
7a283f36 GM |
2300 | accum = 0; |
2301 | break; | |
7921925c | 2302 | case Amult: |
7a283f36 GM |
2303 | accum = 1; |
2304 | break; | |
7921925c | 2305 | case Alogand: |
7a283f36 GM |
2306 | accum = -1; |
2307 | break; | |
2308 | default: | |
2309 | break; | |
7921925c JB |
2310 | } |
2311 | ||
2312 | for (argnum = 0; argnum < nargs; argnum++) | |
2313 | { | |
7a283f36 GM |
2314 | /* Using args[argnum] as argument to CHECK_NUMBER_... */ |
2315 | val = args[argnum]; | |
b7826503 | 2316 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val); |
7921925c | 2317 | |
7a283f36 GM |
2318 | if (FLOATP (val)) |
2319 | return float_arith_driver ((double) accum, argnum, code, | |
2320 | nargs, args); | |
2321 | args[argnum] = val; | |
7921925c | 2322 | next = XINT (args[argnum]); |
0220c518 | 2323 | switch (SWITCH_ENUM_CAST (code)) |
7921925c | 2324 | { |
7a283f36 GM |
2325 | case Aadd: |
2326 | accum += next; | |
2327 | break; | |
7921925c | 2328 | case Asub: |
e64981da | 2329 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c | 2330 | break; |
7a283f36 GM |
2331 | case Amult: |
2332 | accum *= next; | |
2333 | break; | |
7921925c | 2334 | case Adiv: |
7a283f36 GM |
2335 | if (!argnum) |
2336 | accum = next; | |
87fbf902 RS |
2337 | else |
2338 | { | |
2339 | if (next == 0) | |
2340 | Fsignal (Qarith_error, Qnil); | |
2341 | accum /= next; | |
2342 | } | |
7921925c | 2343 | break; |
7a283f36 GM |
2344 | case Alogand: |
2345 | accum &= next; | |
2346 | break; | |
2347 | case Alogior: | |
2348 | accum |= next; | |
2349 | break; | |
2350 | case Alogxor: | |
2351 | accum ^= next; | |
2352 | break; | |
2353 | case Amax: | |
2354 | if (!argnum || next > accum) | |
2355 | accum = next; | |
2356 | break; | |
2357 | case Amin: | |
2358 | if (!argnum || next < accum) | |
2359 | accum = next; | |
2360 | break; | |
7921925c JB |
2361 | } |
2362 | } | |
2363 | ||
f187f1f7 | 2364 | XSETINT (val, accum); |
7921925c JB |
2365 | return val; |
2366 | } | |
2367 | ||
1a2f2d33 KH |
2368 | #undef isnan |
2369 | #define isnan(x) ((x) != (x)) | |
2370 | ||
7a283f36 | 2371 | static Lisp_Object |
7921925c JB |
2372 | float_arith_driver (accum, argnum, code, nargs, args) |
2373 | double accum; | |
2374 | register int argnum; | |
2375 | enum arithop code; | |
2376 | int nargs; | |
2377 | register Lisp_Object *args; | |
2378 | { | |
2379 | register Lisp_Object val; | |
2380 | double next; | |
7403b5c8 | 2381 | |
7921925c JB |
2382 | for (; argnum < nargs; argnum++) |
2383 | { | |
2384 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ | |
b7826503 | 2385 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val); |
7921925c | 2386 | |
e9ebc175 | 2387 | if (FLOATP (val)) |
7921925c | 2388 | { |
7539e11f | 2389 | next = XFLOAT_DATA (val); |
7921925c JB |
2390 | } |
2391 | else | |
2392 | { | |
2393 | args[argnum] = val; /* runs into a compiler bug. */ | |
2394 | next = XINT (args[argnum]); | |
2395 | } | |
0220c518 | 2396 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2397 | { |
2398 | case Aadd: | |
2399 | accum += next; | |
2400 | break; | |
2401 | case Asub: | |
e64981da | 2402 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c JB |
2403 | break; |
2404 | case Amult: | |
2405 | accum *= next; | |
2406 | break; | |
2407 | case Adiv: | |
2408 | if (!argnum) | |
2409 | accum = next; | |
2410 | else | |
87fbf902 | 2411 | { |
ad8d56b9 | 2412 | if (! IEEE_FLOATING_POINT && next == 0) |
87fbf902 RS |
2413 | Fsignal (Qarith_error, Qnil); |
2414 | accum /= next; | |
2415 | } | |
7921925c JB |
2416 | break; |
2417 | case Alogand: | |
2418 | case Alogior: | |
2419 | case Alogxor: | |
2420 | return wrong_type_argument (Qinteger_or_marker_p, val); | |
2421 | case Amax: | |
1a2f2d33 | 2422 | if (!argnum || isnan (next) || next > accum) |
7921925c JB |
2423 | accum = next; |
2424 | break; | |
2425 | case Amin: | |
1a2f2d33 | 2426 | if (!argnum || isnan (next) || next < accum) |
7921925c JB |
2427 | accum = next; |
2428 | break; | |
2429 | } | |
2430 | } | |
2431 | ||
2432 | return make_float (accum); | |
2433 | } | |
cc94f3b2 | 2434 | |
7921925c JB |
2435 | |
2436 | DEFUN ("+", Fplus, Splus, 0, MANY, 0, | |
8c1a1077 PJ |
2437 | doc: /* Return sum of any number of arguments, which are numbers or markers. |
2438 | usage: (+ &rest NUMBERS-OR-MARKERS) */) | |
2439 | (nargs, args) | |
7921925c JB |
2440 | int nargs; |
2441 | Lisp_Object *args; | |
2442 | { | |
2443 | return arith_driver (Aadd, nargs, args); | |
2444 | } | |
2445 | ||
2446 | DEFUN ("-", Fminus, Sminus, 0, MANY, 0, | |
8c1a1077 PJ |
2447 | doc: /* Negate number or subtract numbers or markers. |
2448 | With one arg, negates it. With more than one arg, | |
f44fba9e | 2449 | subtracts all but the first from the first. |
8c1a1077 PJ |
2450 | usage: (- &optional NUMBER-OR-MARKER &rest MORE-NUMBERS-OR-MARKERS) */) |
2451 | (nargs, args) | |
7921925c JB |
2452 | int nargs; |
2453 | Lisp_Object *args; | |
2454 | { | |
2455 | return arith_driver (Asub, nargs, args); | |
2456 | } | |
2457 | ||
2458 | DEFUN ("*", Ftimes, Stimes, 0, MANY, 0, | |
be24eadf | 2459 | doc: /* Return product of any number of arguments, which are numbers or markers. |
8c1a1077 PJ |
2460 | usage: (* &rest NUMBERS-OR-MARKERS) */) |
2461 | (nargs, args) | |
7921925c JB |
2462 | int nargs; |
2463 | Lisp_Object *args; | |
2464 | { | |
2465 | return arith_driver (Amult, nargs, args); | |
2466 | } | |
2467 | ||
2468 | DEFUN ("/", Fquo, Squo, 2, MANY, 0, | |
be24eadf | 2469 | doc: /* Return first argument divided by all the remaining arguments. |
f44fba9e | 2470 | The arguments must be numbers or markers. |
8c1a1077 PJ |
2471 | usage: (/ DIVIDEND DIVISOR &rest DIVISORS) */) |
2472 | (nargs, args) | |
7921925c JB |
2473 | int nargs; |
2474 | Lisp_Object *args; | |
2475 | { | |
2476 | return arith_driver (Adiv, nargs, args); | |
2477 | } | |
2478 | ||
2479 | DEFUN ("%", Frem, Srem, 2, 2, 0, | |
be24eadf | 2480 | doc: /* Return remainder of X divided by Y. |
8c1a1077 PJ |
2481 | Both must be integers or markers. */) |
2482 | (x, y) | |
d9c2a0f2 | 2483 | register Lisp_Object x, y; |
7921925c JB |
2484 | { |
2485 | Lisp_Object val; | |
2486 | ||
b7826503 PJ |
2487 | CHECK_NUMBER_COERCE_MARKER (x); |
2488 | CHECK_NUMBER_COERCE_MARKER (y); | |
7921925c | 2489 | |
d9c2a0f2 | 2490 | if (XFASTINT (y) == 0) |
87fbf902 RS |
2491 | Fsignal (Qarith_error, Qnil); |
2492 | ||
d9c2a0f2 | 2493 | XSETINT (val, XINT (x) % XINT (y)); |
7921925c JB |
2494 | return val; |
2495 | } | |
2496 | ||
1d66a5fa KH |
2497 | #ifndef HAVE_FMOD |
2498 | double | |
2499 | fmod (f1, f2) | |
2500 | double f1, f2; | |
2501 | { | |
bc1c9d7e PE |
2502 | double r = f1; |
2503 | ||
fa43b1e8 KH |
2504 | if (f2 < 0.0) |
2505 | f2 = -f2; | |
bc1c9d7e PE |
2506 | |
2507 | /* If the magnitude of the result exceeds that of the divisor, or | |
2508 | the sign of the result does not agree with that of the dividend, | |
2509 | iterate with the reduced value. This does not yield a | |
2510 | particularly accurate result, but at least it will be in the | |
2511 | range promised by fmod. */ | |
2512 | do | |
2513 | r -= f2 * floor (r / f2); | |
2514 | while (f2 <= (r < 0 ? -r : r) || ((r < 0) != (f1 < 0) && ! isnan (r))); | |
2515 | ||
2516 | return r; | |
1d66a5fa KH |
2517 | } |
2518 | #endif /* ! HAVE_FMOD */ | |
2519 | ||
44fa9da5 | 2520 | DEFUN ("mod", Fmod, Smod, 2, 2, 0, |
be24eadf | 2521 | doc: /* Return X modulo Y. |
8c1a1077 PJ |
2522 | The result falls between zero (inclusive) and Y (exclusive). |
2523 | Both X and Y must be numbers or markers. */) | |
2524 | (x, y) | |
d9c2a0f2 | 2525 | register Lisp_Object x, y; |
44fa9da5 PE |
2526 | { |
2527 | Lisp_Object val; | |
5260234d | 2528 | EMACS_INT i1, i2; |
44fa9da5 | 2529 | |
b7826503 PJ |
2530 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (x); |
2531 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (y); | |
44fa9da5 | 2532 | |
d9c2a0f2 | 2533 | if (FLOATP (x) || FLOATP (y)) |
ad8d56b9 PE |
2534 | return fmod_float (x, y); |
2535 | ||
d9c2a0f2 EN |
2536 | i1 = XINT (x); |
2537 | i2 = XINT (y); | |
44fa9da5 PE |
2538 | |
2539 | if (i2 == 0) | |
2540 | Fsignal (Qarith_error, Qnil); | |
7403b5c8 | 2541 | |
44fa9da5 PE |
2542 | i1 %= i2; |
2543 | ||
2544 | /* If the "remainder" comes out with the wrong sign, fix it. */ | |
04f7ec69 | 2545 | if (i2 < 0 ? i1 > 0 : i1 < 0) |
44fa9da5 PE |
2546 | i1 += i2; |
2547 | ||
f187f1f7 | 2548 | XSETINT (val, i1); |
44fa9da5 PE |
2549 | return val; |
2550 | } | |
2551 | ||
7921925c | 2552 | DEFUN ("max", Fmax, Smax, 1, MANY, 0, |
8c1a1077 | 2553 | doc: /* Return largest of all the arguments (which must be numbers or markers). |
f44fba9e | 2554 | The value is always a number; markers are converted to numbers. |
8c1a1077 PJ |
2555 | usage: (max NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
2556 | (nargs, args) | |
7921925c JB |
2557 | int nargs; |
2558 | Lisp_Object *args; | |
2559 | { | |
2560 | return arith_driver (Amax, nargs, args); | |
2561 | } | |
2562 | ||
2563 | DEFUN ("min", Fmin, Smin, 1, MANY, 0, | |
8c1a1077 | 2564 | doc: /* Return smallest of all the arguments (which must be numbers or markers). |
f44fba9e | 2565 | The value is always a number; markers are converted to numbers. |
8c1a1077 PJ |
2566 | usage: (min NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
2567 | (nargs, args) | |
7921925c JB |
2568 | int nargs; |
2569 | Lisp_Object *args; | |
2570 | { | |
2571 | return arith_driver (Amin, nargs, args); | |
2572 | } | |
2573 | ||
2574 | DEFUN ("logand", Flogand, Slogand, 0, MANY, 0, | |
8c1a1077 | 2575 | doc: /* Return bitwise-and of all the arguments. |
f44fba9e | 2576 | Arguments may be integers, or markers converted to integers. |
8c1a1077 PJ |
2577 | usage: (logand &rest INTS-OR-MARKERS) */) |
2578 | (nargs, args) | |
7921925c JB |
2579 | int nargs; |
2580 | Lisp_Object *args; | |
2581 | { | |
2582 | return arith_driver (Alogand, nargs, args); | |
2583 | } | |
2584 | ||
2585 | DEFUN ("logior", Flogior, Slogior, 0, MANY, 0, | |
8c1a1077 | 2586 | doc: /* Return bitwise-or of all the arguments. |
f44fba9e | 2587 | Arguments may be integers, or markers converted to integers. |
8c1a1077 PJ |
2588 | usage: (logior &rest INTS-OR-MARKERS) */) |
2589 | (nargs, args) | |
7921925c JB |
2590 | int nargs; |
2591 | Lisp_Object *args; | |
2592 | { | |
2593 | return arith_driver (Alogior, nargs, args); | |
2594 | } | |
2595 | ||
2596 | DEFUN ("logxor", Flogxor, Slogxor, 0, MANY, 0, | |
8c1a1077 | 2597 | doc: /* Return bitwise-exclusive-or of all the arguments. |
f44fba9e | 2598 | Arguments may be integers, or markers converted to integers. |
8c1a1077 PJ |
2599 | usage: (logxor &rest INTS-OR-MARKERS) */) |
2600 | (nargs, args) | |
7921925c JB |
2601 | int nargs; |
2602 | Lisp_Object *args; | |
2603 | { | |
2604 | return arith_driver (Alogxor, nargs, args); | |
2605 | } | |
2606 | ||
2607 | DEFUN ("ash", Fash, Sash, 2, 2, 0, | |
8c1a1077 PJ |
2608 | doc: /* Return VALUE with its bits shifted left by COUNT. |
2609 | If COUNT is negative, shifting is actually to the right. | |
2610 | In this case, the sign bit is duplicated. */) | |
2611 | (value, count) | |
3b9f7964 | 2612 | register Lisp_Object value, count; |
7921925c JB |
2613 | { |
2614 | register Lisp_Object val; | |
2615 | ||
b7826503 PJ |
2616 | CHECK_NUMBER (value); |
2617 | CHECK_NUMBER (count); | |
7921925c | 2618 | |
81d70626 RS |
2619 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2620 | XSETINT (val, 0); | |
2621 | else if (XINT (count) > 0) | |
3d9652eb | 2622 | XSETINT (val, XINT (value) << XFASTINT (count)); |
81d70626 RS |
2623 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2624 | XSETINT (val, XINT (value) < 0 ? -1 : 0); | |
7921925c | 2625 | else |
3d9652eb | 2626 | XSETINT (val, XINT (value) >> -XINT (count)); |
7921925c JB |
2627 | return val; |
2628 | } | |
2629 | ||
2630 | DEFUN ("lsh", Flsh, Slsh, 2, 2, 0, | |
8c1a1077 PJ |
2631 | doc: /* Return VALUE with its bits shifted left by COUNT. |
2632 | If COUNT is negative, shifting is actually to the right. | |
2633 | In this case, zeros are shifted in on the left. */) | |
2634 | (value, count) | |
3d9652eb | 2635 | register Lisp_Object value, count; |
7921925c JB |
2636 | { |
2637 | register Lisp_Object val; | |
2638 | ||
b7826503 PJ |
2639 | CHECK_NUMBER (value); |
2640 | CHECK_NUMBER (count); | |
7921925c | 2641 | |
81d70626 RS |
2642 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2643 | XSETINT (val, 0); | |
2644 | else if (XINT (count) > 0) | |
3d9652eb | 2645 | XSETINT (val, (EMACS_UINT) XUINT (value) << XFASTINT (count)); |
81d70626 RS |
2646 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2647 | XSETINT (val, 0); | |
7921925c | 2648 | else |
3d9652eb | 2649 | XSETINT (val, (EMACS_UINT) XUINT (value) >> -XINT (count)); |
7921925c JB |
2650 | return val; |
2651 | } | |
2652 | ||
2653 | DEFUN ("1+", Fadd1, Sadd1, 1, 1, 0, | |
8c1a1077 PJ |
2654 | doc: /* Return NUMBER plus one. NUMBER may be a number or a marker. |
2655 | Markers are converted to integers. */) | |
2656 | (number) | |
d9c2a0f2 | 2657 | register Lisp_Object number; |
7921925c | 2658 | { |
b7826503 | 2659 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number); |
7921925c | 2660 | |
d9c2a0f2 | 2661 | if (FLOATP (number)) |
7539e11f | 2662 | return (make_float (1.0 + XFLOAT_DATA (number))); |
7921925c | 2663 | |
d9c2a0f2 EN |
2664 | XSETINT (number, XINT (number) + 1); |
2665 | return number; | |
7921925c JB |
2666 | } |
2667 | ||
2668 | DEFUN ("1-", Fsub1, Ssub1, 1, 1, 0, | |
8c1a1077 PJ |
2669 | doc: /* Return NUMBER minus one. NUMBER may be a number or a marker. |
2670 | Markers are converted to integers. */) | |
2671 | (number) | |
d9c2a0f2 | 2672 | register Lisp_Object number; |
7921925c | 2673 | { |
b7826503 | 2674 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number); |
7921925c | 2675 | |
d9c2a0f2 | 2676 | if (FLOATP (number)) |
7539e11f | 2677 | return (make_float (-1.0 + XFLOAT_DATA (number))); |
7921925c | 2678 | |
d9c2a0f2 EN |
2679 | XSETINT (number, XINT (number) - 1); |
2680 | return number; | |
7921925c JB |
2681 | } |
2682 | ||
2683 | DEFUN ("lognot", Flognot, Slognot, 1, 1, 0, | |
8c1a1077 PJ |
2684 | doc: /* Return the bitwise complement of NUMBER. NUMBER must be an integer. */) |
2685 | (number) | |
d9c2a0f2 | 2686 | register Lisp_Object number; |
7921925c | 2687 | { |
b7826503 | 2688 | CHECK_NUMBER (number); |
53924017 | 2689 | XSETINT (number, ~XINT (number)); |
d9c2a0f2 | 2690 | return number; |
7921925c JB |
2691 | } |
2692 | \f | |
2693 | void | |
2694 | syms_of_data () | |
2695 | { | |
6315e761 RS |
2696 | Lisp_Object error_tail, arith_tail; |
2697 | ||
7921925c JB |
2698 | Qquote = intern ("quote"); |
2699 | Qlambda = intern ("lambda"); | |
2700 | Qsubr = intern ("subr"); | |
2701 | Qerror_conditions = intern ("error-conditions"); | |
2702 | Qerror_message = intern ("error-message"); | |
2703 | Qtop_level = intern ("top-level"); | |
2704 | ||
2705 | Qerror = intern ("error"); | |
2706 | Qquit = intern ("quit"); | |
2707 | Qwrong_type_argument = intern ("wrong-type-argument"); | |
2708 | Qargs_out_of_range = intern ("args-out-of-range"); | |
2709 | Qvoid_function = intern ("void-function"); | |
ffd56f97 | 2710 | Qcyclic_function_indirection = intern ("cyclic-function-indirection"); |
f35d5bad | 2711 | Qcyclic_variable_indirection = intern ("cyclic-variable-indirection"); |
7921925c JB |
2712 | Qvoid_variable = intern ("void-variable"); |
2713 | Qsetting_constant = intern ("setting-constant"); | |
2714 | Qinvalid_read_syntax = intern ("invalid-read-syntax"); | |
2715 | ||
2716 | Qinvalid_function = intern ("invalid-function"); | |
2717 | Qwrong_number_of_arguments = intern ("wrong-number-of-arguments"); | |
2718 | Qno_catch = intern ("no-catch"); | |
2719 | Qend_of_file = intern ("end-of-file"); | |
2720 | Qarith_error = intern ("arith-error"); | |
2721 | Qbeginning_of_buffer = intern ("beginning-of-buffer"); | |
2722 | Qend_of_buffer = intern ("end-of-buffer"); | |
2723 | Qbuffer_read_only = intern ("buffer-read-only"); | |
8f9f49d7 | 2724 | Qtext_read_only = intern ("text-read-only"); |
3b8819d6 | 2725 | Qmark_inactive = intern ("mark-inactive"); |
7921925c JB |
2726 | |
2727 | Qlistp = intern ("listp"); | |
2728 | Qconsp = intern ("consp"); | |
2729 | Qsymbolp = intern ("symbolp"); | |
cda9b832 | 2730 | Qkeywordp = intern ("keywordp"); |
7921925c JB |
2731 | Qintegerp = intern ("integerp"); |
2732 | Qnatnump = intern ("natnump"); | |
8e86942b | 2733 | Qwholenump = intern ("wholenump"); |
7921925c JB |
2734 | Qstringp = intern ("stringp"); |
2735 | Qarrayp = intern ("arrayp"); | |
2736 | Qsequencep = intern ("sequencep"); | |
2737 | Qbufferp = intern ("bufferp"); | |
2738 | Qvectorp = intern ("vectorp"); | |
2739 | Qchar_or_string_p = intern ("char-or-string-p"); | |
2740 | Qmarkerp = intern ("markerp"); | |
07bd8472 | 2741 | Qbuffer_or_string_p = intern ("buffer-or-string-p"); |
7921925c JB |
2742 | Qinteger_or_marker_p = intern ("integer-or-marker-p"); |
2743 | Qboundp = intern ("boundp"); | |
2744 | Qfboundp = intern ("fboundp"); | |
2745 | ||
7921925c JB |
2746 | Qfloatp = intern ("floatp"); |
2747 | Qnumberp = intern ("numberp"); | |
2748 | Qnumber_or_marker_p = intern ("number-or-marker-p"); | |
7921925c | 2749 | |
4d276982 | 2750 | Qchar_table_p = intern ("char-table-p"); |
7f0edce7 | 2751 | Qvector_or_char_table_p = intern ("vector-or-char-table-p"); |
4d276982 | 2752 | |
6f0e897f DL |
2753 | Qsubrp = intern ("subrp"); |
2754 | Qunevalled = intern ("unevalled"); | |
2755 | Qmany = intern ("many"); | |
2756 | ||
7921925c JB |
2757 | Qcdr = intern ("cdr"); |
2758 | ||
f845f2c9 | 2759 | /* Handle automatic advice activation */ |
ab297811 | 2760 | Qad_advice_info = intern ("ad-advice-info"); |
c1307a23 | 2761 | Qad_activate_internal = intern ("ad-activate-internal"); |
f845f2c9 | 2762 | |
6315e761 RS |
2763 | error_tail = Fcons (Qerror, Qnil); |
2764 | ||
7921925c JB |
2765 | /* ERROR is used as a signaler for random errors for which nothing else is right */ |
2766 | ||
2767 | Fput (Qerror, Qerror_conditions, | |
6315e761 | 2768 | error_tail); |
7921925c JB |
2769 | Fput (Qerror, Qerror_message, |
2770 | build_string ("error")); | |
2771 | ||
2772 | Fput (Qquit, Qerror_conditions, | |
2773 | Fcons (Qquit, Qnil)); | |
2774 | Fput (Qquit, Qerror_message, | |
2775 | build_string ("Quit")); | |
2776 | ||
2777 | Fput (Qwrong_type_argument, Qerror_conditions, | |
6315e761 | 2778 | Fcons (Qwrong_type_argument, error_tail)); |
7921925c JB |
2779 | Fput (Qwrong_type_argument, Qerror_message, |
2780 | build_string ("Wrong type argument")); | |
2781 | ||
2782 | Fput (Qargs_out_of_range, Qerror_conditions, | |
6315e761 | 2783 | Fcons (Qargs_out_of_range, error_tail)); |
7921925c JB |
2784 | Fput (Qargs_out_of_range, Qerror_message, |
2785 | build_string ("Args out of range")); | |
2786 | ||
2787 | Fput (Qvoid_function, Qerror_conditions, | |
6315e761 | 2788 | Fcons (Qvoid_function, error_tail)); |
7921925c JB |
2789 | Fput (Qvoid_function, Qerror_message, |
2790 | build_string ("Symbol's function definition is void")); | |
2791 | ||
ffd56f97 | 2792 | Fput (Qcyclic_function_indirection, Qerror_conditions, |
6315e761 | 2793 | Fcons (Qcyclic_function_indirection, error_tail)); |
ffd56f97 JB |
2794 | Fput (Qcyclic_function_indirection, Qerror_message, |
2795 | build_string ("Symbol's chain of function indirections contains a loop")); | |
2796 | ||
f35d5bad GM |
2797 | Fput (Qcyclic_variable_indirection, Qerror_conditions, |
2798 | Fcons (Qcyclic_variable_indirection, error_tail)); | |
2799 | Fput (Qcyclic_variable_indirection, Qerror_message, | |
2800 | build_string ("Symbol's chain of variable indirections contains a loop")); | |
2801 | ||
13d95cc0 GM |
2802 | Qcircular_list = intern ("circular-list"); |
2803 | staticpro (&Qcircular_list); | |
2804 | Fput (Qcircular_list, Qerror_conditions, | |
2805 | Fcons (Qcircular_list, error_tail)); | |
2806 | Fput (Qcircular_list, Qerror_message, | |
2807 | build_string ("List contains a loop")); | |
2808 | ||
7921925c | 2809 | Fput (Qvoid_variable, Qerror_conditions, |
6315e761 | 2810 | Fcons (Qvoid_variable, error_tail)); |
7921925c JB |
2811 | Fput (Qvoid_variable, Qerror_message, |
2812 | build_string ("Symbol's value as variable is void")); | |
2813 | ||
2814 | Fput (Qsetting_constant, Qerror_conditions, | |
6315e761 | 2815 | Fcons (Qsetting_constant, error_tail)); |
7921925c JB |
2816 | Fput (Qsetting_constant, Qerror_message, |
2817 | build_string ("Attempt to set a constant symbol")); | |
2818 | ||
2819 | Fput (Qinvalid_read_syntax, Qerror_conditions, | |
6315e761 | 2820 | Fcons (Qinvalid_read_syntax, error_tail)); |
7921925c JB |
2821 | Fput (Qinvalid_read_syntax, Qerror_message, |
2822 | build_string ("Invalid read syntax")); | |
2823 | ||
2824 | Fput (Qinvalid_function, Qerror_conditions, | |
6315e761 | 2825 | Fcons (Qinvalid_function, error_tail)); |
7921925c JB |
2826 | Fput (Qinvalid_function, Qerror_message, |
2827 | build_string ("Invalid function")); | |
2828 | ||
2829 | Fput (Qwrong_number_of_arguments, Qerror_conditions, | |
6315e761 | 2830 | Fcons (Qwrong_number_of_arguments, error_tail)); |
7921925c JB |
2831 | Fput (Qwrong_number_of_arguments, Qerror_message, |
2832 | build_string ("Wrong number of arguments")); | |
2833 | ||
2834 | Fput (Qno_catch, Qerror_conditions, | |
6315e761 | 2835 | Fcons (Qno_catch, error_tail)); |
7921925c JB |
2836 | Fput (Qno_catch, Qerror_message, |
2837 | build_string ("No catch for tag")); | |
2838 | ||
2839 | Fput (Qend_of_file, Qerror_conditions, | |
6315e761 | 2840 | Fcons (Qend_of_file, error_tail)); |
7921925c JB |
2841 | Fput (Qend_of_file, Qerror_message, |
2842 | build_string ("End of file during parsing")); | |
2843 | ||
6315e761 | 2844 | arith_tail = Fcons (Qarith_error, error_tail); |
7921925c | 2845 | Fput (Qarith_error, Qerror_conditions, |
6315e761 | 2846 | arith_tail); |
7921925c JB |
2847 | Fput (Qarith_error, Qerror_message, |
2848 | build_string ("Arithmetic error")); | |
2849 | ||
2850 | Fput (Qbeginning_of_buffer, Qerror_conditions, | |
6315e761 | 2851 | Fcons (Qbeginning_of_buffer, error_tail)); |
7921925c JB |
2852 | Fput (Qbeginning_of_buffer, Qerror_message, |
2853 | build_string ("Beginning of buffer")); | |
2854 | ||
2855 | Fput (Qend_of_buffer, Qerror_conditions, | |
6315e761 | 2856 | Fcons (Qend_of_buffer, error_tail)); |
7921925c JB |
2857 | Fput (Qend_of_buffer, Qerror_message, |
2858 | build_string ("End of buffer")); | |
2859 | ||
2860 | Fput (Qbuffer_read_only, Qerror_conditions, | |
6315e761 | 2861 | Fcons (Qbuffer_read_only, error_tail)); |
7921925c JB |
2862 | Fput (Qbuffer_read_only, Qerror_message, |
2863 | build_string ("Buffer is read-only")); | |
2864 | ||
8f9f49d7 GM |
2865 | Fput (Qtext_read_only, Qerror_conditions, |
2866 | Fcons (Qtext_read_only, error_tail)); | |
2867 | Fput (Qtext_read_only, Qerror_message, | |
2868 | build_string ("Text is read-only")); | |
2869 | ||
6315e761 RS |
2870 | Qrange_error = intern ("range-error"); |
2871 | Qdomain_error = intern ("domain-error"); | |
2872 | Qsingularity_error = intern ("singularity-error"); | |
2873 | Qoverflow_error = intern ("overflow-error"); | |
2874 | Qunderflow_error = intern ("underflow-error"); | |
2875 | ||
2876 | Fput (Qdomain_error, Qerror_conditions, | |
2877 | Fcons (Qdomain_error, arith_tail)); | |
2878 | Fput (Qdomain_error, Qerror_message, | |
2879 | build_string ("Arithmetic domain error")); | |
2880 | ||
2881 | Fput (Qrange_error, Qerror_conditions, | |
2882 | Fcons (Qrange_error, arith_tail)); | |
2883 | Fput (Qrange_error, Qerror_message, | |
2884 | build_string ("Arithmetic range error")); | |
2885 | ||
2886 | Fput (Qsingularity_error, Qerror_conditions, | |
2887 | Fcons (Qsingularity_error, Fcons (Qdomain_error, arith_tail))); | |
2888 | Fput (Qsingularity_error, Qerror_message, | |
2889 | build_string ("Arithmetic singularity error")); | |
2890 | ||
2891 | Fput (Qoverflow_error, Qerror_conditions, | |
2892 | Fcons (Qoverflow_error, Fcons (Qdomain_error, arith_tail))); | |
2893 | Fput (Qoverflow_error, Qerror_message, | |
2894 | build_string ("Arithmetic overflow error")); | |
2895 | ||
2896 | Fput (Qunderflow_error, Qerror_conditions, | |
2897 | Fcons (Qunderflow_error, Fcons (Qdomain_error, arith_tail))); | |
2898 | Fput (Qunderflow_error, Qerror_message, | |
2899 | build_string ("Arithmetic underflow error")); | |
2900 | ||
2901 | staticpro (&Qrange_error); | |
2902 | staticpro (&Qdomain_error); | |
2903 | staticpro (&Qsingularity_error); | |
2904 | staticpro (&Qoverflow_error); | |
2905 | staticpro (&Qunderflow_error); | |
6315e761 | 2906 | |
7921925c JB |
2907 | staticpro (&Qnil); |
2908 | staticpro (&Qt); | |
2909 | staticpro (&Qquote); | |
2910 | staticpro (&Qlambda); | |
2911 | staticpro (&Qsubr); | |
2912 | staticpro (&Qunbound); | |
2913 | staticpro (&Qerror_conditions); | |
2914 | staticpro (&Qerror_message); | |
2915 | staticpro (&Qtop_level); | |
2916 | ||
2917 | staticpro (&Qerror); | |
2918 | staticpro (&Qquit); | |
2919 | staticpro (&Qwrong_type_argument); | |
2920 | staticpro (&Qargs_out_of_range); | |
2921 | staticpro (&Qvoid_function); | |
ffd56f97 | 2922 | staticpro (&Qcyclic_function_indirection); |
7921925c JB |
2923 | staticpro (&Qvoid_variable); |
2924 | staticpro (&Qsetting_constant); | |
2925 | staticpro (&Qinvalid_read_syntax); | |
2926 | staticpro (&Qwrong_number_of_arguments); | |
2927 | staticpro (&Qinvalid_function); | |
2928 | staticpro (&Qno_catch); | |
2929 | staticpro (&Qend_of_file); | |
2930 | staticpro (&Qarith_error); | |
2931 | staticpro (&Qbeginning_of_buffer); | |
2932 | staticpro (&Qend_of_buffer); | |
2933 | staticpro (&Qbuffer_read_only); | |
8f9f49d7 | 2934 | staticpro (&Qtext_read_only); |
638b77e6 | 2935 | staticpro (&Qmark_inactive); |
7921925c JB |
2936 | |
2937 | staticpro (&Qlistp); | |
2938 | staticpro (&Qconsp); | |
2939 | staticpro (&Qsymbolp); | |
cda9b832 | 2940 | staticpro (&Qkeywordp); |
7921925c JB |
2941 | staticpro (&Qintegerp); |
2942 | staticpro (&Qnatnump); | |
8e86942b | 2943 | staticpro (&Qwholenump); |
7921925c JB |
2944 | staticpro (&Qstringp); |
2945 | staticpro (&Qarrayp); | |
2946 | staticpro (&Qsequencep); | |
2947 | staticpro (&Qbufferp); | |
2948 | staticpro (&Qvectorp); | |
2949 | staticpro (&Qchar_or_string_p); | |
2950 | staticpro (&Qmarkerp); | |
07bd8472 | 2951 | staticpro (&Qbuffer_or_string_p); |
7921925c | 2952 | staticpro (&Qinteger_or_marker_p); |
7921925c | 2953 | staticpro (&Qfloatp); |
464f8898 RS |
2954 | staticpro (&Qnumberp); |
2955 | staticpro (&Qnumber_or_marker_p); | |
4d276982 | 2956 | staticpro (&Qchar_table_p); |
7f0edce7 | 2957 | staticpro (&Qvector_or_char_table_p); |
6f0e897f DL |
2958 | staticpro (&Qsubrp); |
2959 | staticpro (&Qmany); | |
2960 | staticpro (&Qunevalled); | |
7921925c JB |
2961 | |
2962 | staticpro (&Qboundp); | |
2963 | staticpro (&Qfboundp); | |
2964 | staticpro (&Qcdr); | |
ab297811 | 2965 | staticpro (&Qad_advice_info); |
c1307a23 | 2966 | staticpro (&Qad_activate_internal); |
7921925c | 2967 | |
39bcc759 RS |
2968 | /* Types that type-of returns. */ |
2969 | Qinteger = intern ("integer"); | |
2970 | Qsymbol = intern ("symbol"); | |
2971 | Qstring = intern ("string"); | |
2972 | Qcons = intern ("cons"); | |
2973 | Qmarker = intern ("marker"); | |
2974 | Qoverlay = intern ("overlay"); | |
2975 | Qfloat = intern ("float"); | |
2976 | Qwindow_configuration = intern ("window-configuration"); | |
2977 | Qprocess = intern ("process"); | |
2978 | Qwindow = intern ("window"); | |
2979 | /* Qsubr = intern ("subr"); */ | |
2980 | Qcompiled_function = intern ("compiled-function"); | |
2981 | Qbuffer = intern ("buffer"); | |
2982 | Qframe = intern ("frame"); | |
2983 | Qvector = intern ("vector"); | |
fc67d5be KH |
2984 | Qchar_table = intern ("char-table"); |
2985 | Qbool_vector = intern ("bool-vector"); | |
81dc5de5 | 2986 | Qhash_table = intern ("hash-table"); |
39bcc759 RS |
2987 | |
2988 | staticpro (&Qinteger); | |
2989 | staticpro (&Qsymbol); | |
2990 | staticpro (&Qstring); | |
2991 | staticpro (&Qcons); | |
2992 | staticpro (&Qmarker); | |
2993 | staticpro (&Qoverlay); | |
2994 | staticpro (&Qfloat); | |
2995 | staticpro (&Qwindow_configuration); | |
2996 | staticpro (&Qprocess); | |
2997 | staticpro (&Qwindow); | |
2998 | /* staticpro (&Qsubr); */ | |
2999 | staticpro (&Qcompiled_function); | |
3000 | staticpro (&Qbuffer); | |
3001 | staticpro (&Qframe); | |
3002 | staticpro (&Qvector); | |
fc67d5be KH |
3003 | staticpro (&Qchar_table); |
3004 | staticpro (&Qbool_vector); | |
81dc5de5 | 3005 | staticpro (&Qhash_table); |
39bcc759 | 3006 | |
f35d5bad | 3007 | defsubr (&Sindirect_variable); |
cc515226 | 3008 | defsubr (&Ssubr_interactive_form); |
7921925c JB |
3009 | defsubr (&Seq); |
3010 | defsubr (&Snull); | |
39bcc759 | 3011 | defsubr (&Stype_of); |
7921925c JB |
3012 | defsubr (&Slistp); |
3013 | defsubr (&Snlistp); | |
3014 | defsubr (&Sconsp); | |
3015 | defsubr (&Satom); | |
3016 | defsubr (&Sintegerp); | |
464f8898 | 3017 | defsubr (&Sinteger_or_marker_p); |
7921925c JB |
3018 | defsubr (&Snumberp); |
3019 | defsubr (&Snumber_or_marker_p); | |
464f8898 | 3020 | defsubr (&Sfloatp); |
7921925c JB |
3021 | defsubr (&Snatnump); |
3022 | defsubr (&Ssymbolp); | |
cda9b832 | 3023 | defsubr (&Skeywordp); |
7921925c | 3024 | defsubr (&Sstringp); |
0f56470d | 3025 | defsubr (&Smultibyte_string_p); |
7921925c | 3026 | defsubr (&Svectorp); |
4d276982 | 3027 | defsubr (&Schar_table_p); |
7f0edce7 | 3028 | defsubr (&Svector_or_char_table_p); |
4d276982 | 3029 | defsubr (&Sbool_vector_p); |
7921925c JB |
3030 | defsubr (&Sarrayp); |
3031 | defsubr (&Ssequencep); | |
3032 | defsubr (&Sbufferp); | |
3033 | defsubr (&Smarkerp); | |
7921925c | 3034 | defsubr (&Ssubrp); |
dbc4e1c1 | 3035 | defsubr (&Sbyte_code_function_p); |
7921925c JB |
3036 | defsubr (&Schar_or_string_p); |
3037 | defsubr (&Scar); | |
3038 | defsubr (&Scdr); | |
3039 | defsubr (&Scar_safe); | |
3040 | defsubr (&Scdr_safe); | |
3041 | defsubr (&Ssetcar); | |
3042 | defsubr (&Ssetcdr); | |
3043 | defsubr (&Ssymbol_function); | |
ffd56f97 | 3044 | defsubr (&Sindirect_function); |
7921925c JB |
3045 | defsubr (&Ssymbol_plist); |
3046 | defsubr (&Ssymbol_name); | |
3047 | defsubr (&Smakunbound); | |
3048 | defsubr (&Sfmakunbound); | |
3049 | defsubr (&Sboundp); | |
3050 | defsubr (&Sfboundp); | |
3051 | defsubr (&Sfset); | |
80df38a2 | 3052 | defsubr (&Sdefalias); |
7921925c JB |
3053 | defsubr (&Ssetplist); |
3054 | defsubr (&Ssymbol_value); | |
3055 | defsubr (&Sset); | |
3056 | defsubr (&Sdefault_boundp); | |
3057 | defsubr (&Sdefault_value); | |
3058 | defsubr (&Sset_default); | |
3059 | defsubr (&Ssetq_default); | |
3060 | defsubr (&Smake_variable_buffer_local); | |
3061 | defsubr (&Smake_local_variable); | |
3062 | defsubr (&Skill_local_variable); | |
b0c2d1c6 | 3063 | defsubr (&Smake_variable_frame_local); |
62476adc | 3064 | defsubr (&Slocal_variable_p); |
f4f04cee | 3065 | defsubr (&Slocal_variable_if_set_p); |
7921925c JB |
3066 | defsubr (&Saref); |
3067 | defsubr (&Saset); | |
f2980264 | 3068 | defsubr (&Snumber_to_string); |
25e40a4b | 3069 | defsubr (&Sstring_to_number); |
7921925c JB |
3070 | defsubr (&Seqlsign); |
3071 | defsubr (&Slss); | |
3072 | defsubr (&Sgtr); | |
3073 | defsubr (&Sleq); | |
3074 | defsubr (&Sgeq); | |
3075 | defsubr (&Sneq); | |
3076 | defsubr (&Szerop); | |
3077 | defsubr (&Splus); | |
3078 | defsubr (&Sminus); | |
3079 | defsubr (&Stimes); | |
3080 | defsubr (&Squo); | |
3081 | defsubr (&Srem); | |
44fa9da5 | 3082 | defsubr (&Smod); |
7921925c JB |
3083 | defsubr (&Smax); |
3084 | defsubr (&Smin); | |
3085 | defsubr (&Slogand); | |
3086 | defsubr (&Slogior); | |
3087 | defsubr (&Slogxor); | |
3088 | defsubr (&Slsh); | |
3089 | defsubr (&Sash); | |
3090 | defsubr (&Sadd1); | |
3091 | defsubr (&Ssub1); | |
3092 | defsubr (&Slognot); | |
6f0e897f | 3093 | defsubr (&Ssubr_arity); |
8e86942b | 3094 | |
c80bd143 | 3095 | XSYMBOL (Qwholenump)->function = XSYMBOL (Qnatnump)->function; |
e6190b11 | 3096 | |
9d113d9d AS |
3097 | DEFVAR_LISP ("most-positive-fixnum", &Vmost_positive_fixnum, |
3098 | doc: /* The largest value that is representable in a Lisp integer. */); | |
3099 | Vmost_positive_fixnum = make_number (MOST_POSITIVE_FIXNUM); | |
e6190b11 | 3100 | |
9d113d9d AS |
3101 | DEFVAR_LISP ("most-negative-fixnum", &Vmost_negative_fixnum, |
3102 | doc: /* The smallest value that is representable in a Lisp integer. */); | |
3103 | Vmost_negative_fixnum = make_number (MOST_NEGATIVE_FIXNUM); | |
7921925c JB |
3104 | } |
3105 | ||
a33ef3ab | 3106 | SIGTYPE |
7921925c JB |
3107 | arith_error (signo) |
3108 | int signo; | |
3109 | { | |
fe42a920 | 3110 | #if defined(USG) && !defined(POSIX_SIGNALS) |
7921925c JB |
3111 | /* USG systems forget handlers when they are used; |
3112 | must reestablish each time */ | |
3113 | signal (signo, arith_error); | |
3114 | #endif /* USG */ | |
3115 | #ifdef VMS | |
3116 | /* VMS systems are like USG. */ | |
3117 | signal (signo, arith_error); | |
3118 | #endif /* VMS */ | |
3119 | #ifdef BSD4_1 | |
3120 | sigrelse (SIGFPE); | |
3121 | #else /* not BSD4_1 */ | |
e065a56e | 3122 | sigsetmask (SIGEMPTYMASK); |
7921925c JB |
3123 | #endif /* not BSD4_1 */ |
3124 | ||
3125 | Fsignal (Qarith_error, Qnil); | |
3126 | } | |
3127 | ||
dfcf069d | 3128 | void |
7921925c JB |
3129 | init_data () |
3130 | { | |
3131 | /* Don't do this if just dumping out. | |
3132 | We don't want to call `signal' in this case | |
3133 | so that we don't have trouble with dumping | |
3134 | signal-delivering routines in an inconsistent state. */ | |
3135 | #ifndef CANNOT_DUMP | |
3136 | if (!initialized) | |
3137 | return; | |
3138 | #endif /* CANNOT_DUMP */ | |
3139 | signal (SIGFPE, arith_error); | |
7403b5c8 | 3140 | |
7921925c JB |
3141 | #ifdef uts |
3142 | signal (SIGEMT, arith_error); | |
3143 | #endif /* uts */ | |
3144 | } |