Commit | Line | Data |
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7921925c | 1 | /* Primitive operations on Lisp data types for GNU Emacs Lisp interpreter. |
0220c518 | 2 | Copyright (C) 1985, 86, 88, 93, 94, 95 Free Software Foundation, Inc. |
7921925c JB |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
7c938215 | 8 | the Free Software Foundation; either version 2, or (at your option) |
7921925c JB |
9 | any later version. |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
7921925c JB |
20 | |
21 | ||
22 | #include <signal.h> | |
23 | ||
18160b98 | 24 | #include <config.h> |
7921925c | 25 | #include "lisp.h" |
29eab336 | 26 | #include "puresize.h" |
7921925c JB |
27 | |
28 | #ifndef standalone | |
29 | #include "buffer.h" | |
077d751f | 30 | #include "keyboard.h" |
7921925c JB |
31 | #endif |
32 | ||
a44804c2 | 33 | #include "syssignal.h" |
fb8e9847 | 34 | |
7921925c | 35 | #ifdef LISP_FLOAT_TYPE |
defa77b5 | 36 | |
93b91208 JB |
37 | #ifdef STDC_HEADERS |
38 | #include <stdlib.h> | |
39 | #endif | |
defa77b5 RS |
40 | |
41 | /* Work around a problem that happens because math.h on hpux 7 | |
42 | defines two static variables--which, in Emacs, are not really static, | |
43 | because `static' is defined as nothing. The problem is that they are | |
44 | here, in floatfns.c, and in lread.c. | |
45 | These macros prevent the name conflict. */ | |
46 | #if defined (HPUX) && !defined (HPUX8) | |
47 | #define _MAXLDBL data_c_maxldbl | |
48 | #define _NMAXLDBL data_c_nmaxldbl | |
49 | #endif | |
50 | ||
7921925c JB |
51 | #include <math.h> |
52 | #endif /* LISP_FLOAT_TYPE */ | |
53 | ||
024ec58f BF |
54 | #if !defined (atof) |
55 | extern double atof (); | |
56 | #endif /* !atof */ | |
57 | ||
7921925c JB |
58 | Lisp_Object Qnil, Qt, Qquote, Qlambda, Qsubr, Qunbound; |
59 | Lisp_Object Qerror_conditions, Qerror_message, Qtop_level; | |
60 | Lisp_Object Qerror, Qquit, Qwrong_type_argument, Qargs_out_of_range; | |
ffd56f97 | 61 | Lisp_Object Qvoid_variable, Qvoid_function, Qcyclic_function_indirection; |
7921925c JB |
62 | Lisp_Object Qsetting_constant, Qinvalid_read_syntax; |
63 | Lisp_Object Qinvalid_function, Qwrong_number_of_arguments, Qno_catch; | |
3b8819d6 | 64 | Lisp_Object Qend_of_file, Qarith_error, Qmark_inactive; |
7921925c | 65 | Lisp_Object Qbeginning_of_buffer, Qend_of_buffer, Qbuffer_read_only; |
8e86942b | 66 | Lisp_Object Qintegerp, Qnatnump, Qwholenump, Qsymbolp, Qlistp, Qconsp; |
7921925c JB |
67 | Lisp_Object Qstringp, Qarrayp, Qsequencep, Qbufferp; |
68 | Lisp_Object Qchar_or_string_p, Qmarkerp, Qinteger_or_marker_p, Qvectorp; | |
07bd8472 | 69 | Lisp_Object Qbuffer_or_string_p; |
7921925c | 70 | Lisp_Object Qboundp, Qfboundp; |
7f0edce7 | 71 | Lisp_Object Qchar_table_p, Qvector_or_char_table_p; |
39bcc759 | 72 | |
7921925c | 73 | Lisp_Object Qcdr; |
ab297811 | 74 | Lisp_Object Qad_advice_info, Qad_activate; |
7921925c | 75 | |
6315e761 RS |
76 | Lisp_Object Qrange_error, Qdomain_error, Qsingularity_error; |
77 | Lisp_Object Qoverflow_error, Qunderflow_error; | |
78 | ||
7921925c | 79 | #ifdef LISP_FLOAT_TYPE |
464f8898 | 80 | Lisp_Object Qfloatp; |
7921925c JB |
81 | Lisp_Object Qnumberp, Qnumber_or_marker_p; |
82 | #endif | |
83 | ||
39bcc759 RS |
84 | static Lisp_Object Qinteger, Qsymbol, Qstring, Qcons, Qmarker, Qoverlay; |
85 | static Lisp_Object Qfloat, Qwindow_configuration, Qprocess, Qwindow; | |
86 | static Lisp_Object Qcompiled_function, Qbuffer, Qframe, Qvector; | |
fc67d5be | 87 | static Lisp_Object Qchar_table, Qbool_vector; |
39bcc759 | 88 | |
7921925c JB |
89 | static Lisp_Object swap_in_symval_forwarding (); |
90 | ||
91 | Lisp_Object | |
92 | wrong_type_argument (predicate, value) | |
93 | register Lisp_Object predicate, value; | |
94 | { | |
95 | register Lisp_Object tem; | |
96 | do | |
97 | { | |
98 | if (!EQ (Vmocklisp_arguments, Qt)) | |
99 | { | |
e9ebc175 | 100 | if (STRINGP (value) && |
7921925c | 101 | (EQ (predicate, Qintegerp) || EQ (predicate, Qinteger_or_marker_p))) |
25e40a4b | 102 | return Fstring_to_number (value); |
e9ebc175 | 103 | if (INTEGERP (value) && EQ (predicate, Qstringp)) |
f2980264 | 104 | return Fnumber_to_string (value); |
7921925c | 105 | } |
e1351ff7 RS |
106 | |
107 | /* If VALUE is not even a valid Lisp object, abort here | |
108 | where we can get a backtrace showing where it came from. */ | |
04be3993 | 109 | if ((unsigned int) XGCTYPE (value) >= Lisp_Type_Limit) |
e1351ff7 RS |
110 | abort (); |
111 | ||
7921925c JB |
112 | value = Fsignal (Qwrong_type_argument, Fcons (predicate, Fcons (value, Qnil))); |
113 | tem = call1 (predicate, value); | |
114 | } | |
a33ef3ab | 115 | while (NILP (tem)); |
7921925c JB |
116 | return value; |
117 | } | |
118 | ||
119 | pure_write_error () | |
120 | { | |
121 | error ("Attempt to modify read-only object"); | |
122 | } | |
123 | ||
124 | void | |
125 | args_out_of_range (a1, a2) | |
126 | Lisp_Object a1, a2; | |
127 | { | |
128 | while (1) | |
129 | Fsignal (Qargs_out_of_range, Fcons (a1, Fcons (a2, Qnil))); | |
130 | } | |
131 | ||
132 | void | |
133 | args_out_of_range_3 (a1, a2, a3) | |
134 | Lisp_Object a1, a2, a3; | |
135 | { | |
136 | while (1) | |
137 | Fsignal (Qargs_out_of_range, Fcons (a1, Fcons (a2, Fcons (a3, Qnil)))); | |
138 | } | |
139 | ||
140 | Lisp_Object | |
141 | make_number (num) | |
142 | int num; | |
143 | { | |
144 | register Lisp_Object val; | |
f187f1f7 | 145 | XSETINT (val, num); |
7921925c JB |
146 | return val; |
147 | } | |
148 | ||
149 | /* On some machines, XINT needs a temporary location. | |
150 | Here it is, in case it is needed. */ | |
151 | ||
152 | int sign_extend_temp; | |
153 | ||
154 | /* On a few machines, XINT can only be done by calling this. */ | |
155 | ||
156 | int | |
157 | sign_extend_lisp_int (num) | |
a0ed95ea | 158 | EMACS_INT num; |
7921925c | 159 | { |
a0ed95ea RS |
160 | if (num & (((EMACS_INT) 1) << (VALBITS - 1))) |
161 | return num | (((EMACS_INT) (-1)) << VALBITS); | |
7921925c | 162 | else |
a0ed95ea | 163 | return num & ((((EMACS_INT) 1) << VALBITS) - 1); |
7921925c JB |
164 | } |
165 | \f | |
166 | /* Data type predicates */ | |
167 | ||
168 | DEFUN ("eq", Feq, Seq, 2, 2, 0, | |
169 | "T if the two args are the same Lisp object.") | |
170 | (obj1, obj2) | |
171 | Lisp_Object obj1, obj2; | |
172 | { | |
173 | if (EQ (obj1, obj2)) | |
174 | return Qt; | |
175 | return Qnil; | |
176 | } | |
177 | ||
178 | DEFUN ("null", Fnull, Snull, 1, 1, 0, "T if OBJECT is nil.") | |
39bcc759 RS |
179 | (object) |
180 | Lisp_Object object; | |
7921925c | 181 | { |
39bcc759 | 182 | if (NILP (object)) |
7921925c JB |
183 | return Qt; |
184 | return Qnil; | |
185 | } | |
186 | ||
39bcc759 RS |
187 | DEFUN ("type-of", Ftype_of, Stype_of, 1, 1, 0, |
188 | "Return a symbol representing the type of OBJECT.\n\ | |
189 | The symbol returned names the object's basic type;\n\ | |
190 | for example, (type-of 1) returns `integer'.") | |
191 | (object) | |
192 | Lisp_Object object; | |
193 | { | |
194 | switch (XGCTYPE (object)) | |
195 | { | |
196 | case Lisp_Int: | |
197 | return Qinteger; | |
198 | ||
199 | case Lisp_Symbol: | |
200 | return Qsymbol; | |
201 | ||
202 | case Lisp_String: | |
203 | return Qstring; | |
204 | ||
205 | case Lisp_Cons: | |
206 | return Qcons; | |
207 | ||
208 | case Lisp_Misc: | |
324a6eef | 209 | switch (XMISCTYPE (object)) |
39bcc759 RS |
210 | { |
211 | case Lisp_Misc_Marker: | |
212 | return Qmarker; | |
213 | case Lisp_Misc_Overlay: | |
214 | return Qoverlay; | |
215 | case Lisp_Misc_Float: | |
216 | return Qfloat; | |
217 | } | |
218 | abort (); | |
219 | ||
220 | case Lisp_Vectorlike: | |
221 | if (GC_WINDOW_CONFIGURATIONP (object)) | |
222 | return Qwindow_configuration; | |
223 | if (GC_PROCESSP (object)) | |
224 | return Qprocess; | |
225 | if (GC_WINDOWP (object)) | |
226 | return Qwindow; | |
227 | if (GC_SUBRP (object)) | |
228 | return Qsubr; | |
229 | if (GC_COMPILEDP (object)) | |
230 | return Qcompiled_function; | |
231 | if (GC_BUFFERP (object)) | |
232 | return Qbuffer; | |
fc67d5be KH |
233 | if (GC_CHAR_TABLE_P (object)) |
234 | return Qchar_table; | |
235 | if (GC_BOOL_VECTOR_P (object)) | |
236 | return Qbool_vector; | |
39bcc759 RS |
237 | |
238 | #ifdef MULTI_FRAME | |
239 | if (GC_FRAMEP (object)) | |
240 | return Qframe; | |
241 | #endif | |
242 | return Qvector; | |
243 | ||
244 | #ifdef LISP_FLOAT_TYPE | |
245 | case Lisp_Float: | |
246 | return Qfloat; | |
247 | #endif | |
248 | ||
249 | default: | |
250 | abort (); | |
251 | } | |
252 | } | |
253 | ||
7921925c | 254 | DEFUN ("consp", Fconsp, Sconsp, 1, 1, 0, "T if OBJECT is a cons cell.") |
39bcc759 RS |
255 | (object) |
256 | Lisp_Object object; | |
7921925c | 257 | { |
39bcc759 | 258 | if (CONSP (object)) |
7921925c JB |
259 | return Qt; |
260 | return Qnil; | |
261 | } | |
262 | ||
263 | DEFUN ("atom", Fatom, Satom, 1, 1, 0, "T if OBJECT is not a cons cell. This includes nil.") | |
39bcc759 RS |
264 | (object) |
265 | Lisp_Object object; | |
7921925c | 266 | { |
39bcc759 | 267 | if (CONSP (object)) |
7921925c JB |
268 | return Qnil; |
269 | return Qt; | |
270 | } | |
271 | ||
272 | DEFUN ("listp", Flistp, Slistp, 1, 1, 0, "T if OBJECT is a list. This includes nil.") | |
39bcc759 RS |
273 | (object) |
274 | Lisp_Object object; | |
7921925c | 275 | { |
39bcc759 | 276 | if (CONSP (object) || NILP (object)) |
7921925c JB |
277 | return Qt; |
278 | return Qnil; | |
279 | } | |
280 | ||
281 | DEFUN ("nlistp", Fnlistp, Snlistp, 1, 1, 0, "T if OBJECT is not a list. Lists include nil.") | |
39bcc759 RS |
282 | (object) |
283 | Lisp_Object object; | |
7921925c | 284 | { |
39bcc759 | 285 | if (CONSP (object) || NILP (object)) |
7921925c JB |
286 | return Qnil; |
287 | return Qt; | |
288 | } | |
289 | \f | |
290 | DEFUN ("symbolp", Fsymbolp, Ssymbolp, 1, 1, 0, "T if OBJECT is a symbol.") | |
39bcc759 RS |
291 | (object) |
292 | Lisp_Object object; | |
7921925c | 293 | { |
39bcc759 | 294 | if (SYMBOLP (object)) |
7921925c JB |
295 | return Qt; |
296 | return Qnil; | |
297 | } | |
298 | ||
299 | DEFUN ("vectorp", Fvectorp, Svectorp, 1, 1, 0, "T if OBJECT is a vector.") | |
39bcc759 RS |
300 | (object) |
301 | Lisp_Object object; | |
7921925c | 302 | { |
39bcc759 | 303 | if (VECTORP (object)) |
7921925c JB |
304 | return Qt; |
305 | return Qnil; | |
306 | } | |
307 | ||
308 | DEFUN ("stringp", Fstringp, Sstringp, 1, 1, 0, "T if OBJECT is a string.") | |
39bcc759 RS |
309 | (object) |
310 | Lisp_Object object; | |
7921925c | 311 | { |
39bcc759 | 312 | if (STRINGP (object)) |
7921925c JB |
313 | return Qt; |
314 | return Qnil; | |
315 | } | |
316 | ||
4d276982 RS |
317 | DEFUN ("char-table-p", Fchar_table_p, Schar_table_p, 1, 1, 0, "T if OBJECT is a char-table.") |
318 | (object) | |
319 | Lisp_Object object; | |
320 | { | |
321 | if (CHAR_TABLE_P (object)) | |
322 | return Qt; | |
323 | return Qnil; | |
324 | } | |
325 | ||
7f0edce7 RS |
326 | DEFUN ("vector-or-char-table-p", Fvector_or_char_table_p, |
327 | Svector_or_char_table_p, 1, 1, 0, | |
328 | "T if OBJECT is a char-table or vector.") | |
329 | (object) | |
330 | Lisp_Object object; | |
331 | { | |
332 | if (VECTORP (object) || CHAR_TABLE_P (object)) | |
333 | return Qt; | |
334 | return Qnil; | |
335 | } | |
336 | ||
4d276982 RS |
337 | DEFUN ("bool-vector-p", Fbool_vector_p, Sbool_vector_p, 1, 1, 0, "T if OBJECT is a bool-vector.") |
338 | (object) | |
339 | Lisp_Object object; | |
340 | { | |
341 | if (BOOL_VECTOR_P (object)) | |
342 | return Qt; | |
343 | return Qnil; | |
344 | } | |
345 | ||
7921925c | 346 | DEFUN ("arrayp", Farrayp, Sarrayp, 1, 1, 0, "T if OBJECT is an array (string or vector).") |
39bcc759 RS |
347 | (object) |
348 | Lisp_Object object; | |
7921925c | 349 | { |
39bcc759 | 350 | if (VECTORP (object) || STRINGP (object)) |
7921925c JB |
351 | return Qt; |
352 | return Qnil; | |
353 | } | |
354 | ||
355 | DEFUN ("sequencep", Fsequencep, Ssequencep, 1, 1, 0, | |
356 | "T if OBJECT is a sequence (list or array).") | |
39bcc759 RS |
357 | (object) |
358 | register Lisp_Object object; | |
7921925c | 359 | { |
4d276982 RS |
360 | if (CONSP (object) || NILP (object) || VECTORP (object) || STRINGP (object) |
361 | || CHAR_TABLE_P (object) || BOOL_VECTOR_P (object)) | |
7921925c JB |
362 | return Qt; |
363 | return Qnil; | |
364 | } | |
365 | ||
366 | DEFUN ("bufferp", Fbufferp, Sbufferp, 1, 1, 0, "T if OBJECT is an editor buffer.") | |
39bcc759 RS |
367 | (object) |
368 | Lisp_Object object; | |
7921925c | 369 | { |
39bcc759 | 370 | if (BUFFERP (object)) |
7921925c JB |
371 | return Qt; |
372 | return Qnil; | |
373 | } | |
374 | ||
375 | DEFUN ("markerp", Fmarkerp, Smarkerp, 1, 1, 0, "T if OBJECT is a marker (editor pointer).") | |
39bcc759 RS |
376 | (object) |
377 | Lisp_Object object; | |
7921925c | 378 | { |
39bcc759 | 379 | if (MARKERP (object)) |
7921925c JB |
380 | return Qt; |
381 | return Qnil; | |
382 | } | |
383 | ||
7921925c | 384 | DEFUN ("subrp", Fsubrp, Ssubrp, 1, 1, 0, "T if OBJECT is a built-in function.") |
39bcc759 RS |
385 | (object) |
386 | Lisp_Object object; | |
7921925c | 387 | { |
39bcc759 | 388 | if (SUBRP (object)) |
7921925c JB |
389 | return Qt; |
390 | return Qnil; | |
391 | } | |
392 | ||
dbc4e1c1 JB |
393 | DEFUN ("byte-code-function-p", Fbyte_code_function_p, Sbyte_code_function_p, |
394 | 1, 1, 0, "T if OBJECT is a byte-compiled function object.") | |
39bcc759 RS |
395 | (object) |
396 | Lisp_Object object; | |
7921925c | 397 | { |
39bcc759 | 398 | if (COMPILEDP (object)) |
7921925c JB |
399 | return Qt; |
400 | return Qnil; | |
401 | } | |
402 | ||
0321d75c KH |
403 | DEFUN ("char-or-string-p", Fchar_or_string_p, Schar_or_string_p, 1, 1, 0, |
404 | "T if OBJECT is a character (an integer) or a string.") | |
39bcc759 RS |
405 | (object) |
406 | register Lisp_Object object; | |
7921925c | 407 | { |
39bcc759 | 408 | if (INTEGERP (object) || STRINGP (object)) |
7921925c JB |
409 | return Qt; |
410 | return Qnil; | |
411 | } | |
412 | \f | |
0321d75c | 413 | DEFUN ("integerp", Fintegerp, Sintegerp, 1, 1, 0, "T if OBJECT is an integer.") |
39bcc759 RS |
414 | (object) |
415 | Lisp_Object object; | |
7921925c | 416 | { |
39bcc759 | 417 | if (INTEGERP (object)) |
7921925c JB |
418 | return Qt; |
419 | return Qnil; | |
420 | } | |
421 | ||
464f8898 RS |
422 | DEFUN ("integer-or-marker-p", Finteger_or_marker_p, Sinteger_or_marker_p, 1, 1, 0, |
423 | "T if OBJECT is an integer or a marker (editor pointer).") | |
39bcc759 RS |
424 | (object) |
425 | register Lisp_Object object; | |
7921925c | 426 | { |
39bcc759 | 427 | if (MARKERP (object) || INTEGERP (object)) |
7921925c JB |
428 | return Qt; |
429 | return Qnil; | |
430 | } | |
431 | ||
0321d75c KH |
432 | DEFUN ("natnump", Fnatnump, Snatnump, 1, 1, 0, |
433 | "T if OBJECT is a nonnegative integer.") | |
39bcc759 RS |
434 | (object) |
435 | Lisp_Object object; | |
7921925c | 436 | { |
39bcc759 | 437 | if (NATNUMP (object)) |
7921925c JB |
438 | return Qt; |
439 | return Qnil; | |
440 | } | |
441 | ||
442 | DEFUN ("numberp", Fnumberp, Snumberp, 1, 1, 0, | |
443 | "T if OBJECT is a number (floating point or integer).") | |
39bcc759 RS |
444 | (object) |
445 | Lisp_Object object; | |
7921925c | 446 | { |
39bcc759 | 447 | if (NUMBERP (object)) |
7921925c | 448 | return Qt; |
dbc4e1c1 JB |
449 | else |
450 | return Qnil; | |
7921925c JB |
451 | } |
452 | ||
453 | DEFUN ("number-or-marker-p", Fnumber_or_marker_p, | |
454 | Snumber_or_marker_p, 1, 1, 0, | |
455 | "T if OBJECT is a number or a marker.") | |
39bcc759 RS |
456 | (object) |
457 | Lisp_Object object; | |
7921925c | 458 | { |
39bcc759 | 459 | if (NUMBERP (object) || MARKERP (object)) |
7921925c JB |
460 | return Qt; |
461 | return Qnil; | |
462 | } | |
464f8898 RS |
463 | |
464 | #ifdef LISP_FLOAT_TYPE | |
465 | DEFUN ("floatp", Ffloatp, Sfloatp, 1, 1, 0, | |
466 | "T if OBJECT is a floating point number.") | |
39bcc759 RS |
467 | (object) |
468 | Lisp_Object object; | |
464f8898 | 469 | { |
39bcc759 | 470 | if (FLOATP (object)) |
464f8898 RS |
471 | return Qt; |
472 | return Qnil; | |
473 | } | |
7921925c JB |
474 | #endif /* LISP_FLOAT_TYPE */ |
475 | \f | |
476 | /* Extract and set components of lists */ | |
477 | ||
478 | DEFUN ("car", Fcar, Scar, 1, 1, 0, | |
e1960a18 | 479 | "Return the car of LIST. If arg is nil, return nil.\n\ |
7921925c JB |
480 | Error if arg is not nil and not a cons cell. See also `car-safe'.") |
481 | (list) | |
482 | register Lisp_Object list; | |
483 | { | |
484 | while (1) | |
485 | { | |
e9ebc175 | 486 | if (CONSP (list)) |
7921925c JB |
487 | return XCONS (list)->car; |
488 | else if (EQ (list, Qnil)) | |
489 | return Qnil; | |
490 | else | |
491 | list = wrong_type_argument (Qlistp, list); | |
492 | } | |
493 | } | |
494 | ||
495 | DEFUN ("car-safe", Fcar_safe, Scar_safe, 1, 1, 0, | |
496 | "Return the car of OBJECT if it is a cons cell, or else nil.") | |
497 | (object) | |
498 | Lisp_Object object; | |
499 | { | |
e9ebc175 | 500 | if (CONSP (object)) |
7921925c JB |
501 | return XCONS (object)->car; |
502 | else | |
503 | return Qnil; | |
504 | } | |
505 | ||
506 | DEFUN ("cdr", Fcdr, Scdr, 1, 1, 0, | |
e1960a18 | 507 | "Return the cdr of LIST. If arg is nil, return nil.\n\ |
7921925c JB |
508 | Error if arg is not nil and not a cons cell. See also `cdr-safe'.") |
509 | ||
510 | (list) | |
511 | register Lisp_Object list; | |
512 | { | |
513 | while (1) | |
514 | { | |
e9ebc175 | 515 | if (CONSP (list)) |
7921925c JB |
516 | return XCONS (list)->cdr; |
517 | else if (EQ (list, Qnil)) | |
518 | return Qnil; | |
519 | else | |
520 | list = wrong_type_argument (Qlistp, list); | |
521 | } | |
522 | } | |
523 | ||
524 | DEFUN ("cdr-safe", Fcdr_safe, Scdr_safe, 1, 1, 0, | |
b7abc8fa | 525 | "Return the cdr of OBJECT if it is a cons cell, or else nil.") |
7921925c JB |
526 | (object) |
527 | Lisp_Object object; | |
528 | { | |
e9ebc175 | 529 | if (CONSP (object)) |
7921925c JB |
530 | return XCONS (object)->cdr; |
531 | else | |
532 | return Qnil; | |
533 | } | |
534 | ||
535 | DEFUN ("setcar", Fsetcar, Ssetcar, 2, 2, 0, | |
e1960a18 | 536 | "Set the car of CELL to be NEWCAR. Returns NEWCAR.") |
7921925c JB |
537 | (cell, newcar) |
538 | register Lisp_Object cell, newcar; | |
539 | { | |
e9ebc175 | 540 | if (!CONSP (cell)) |
7921925c JB |
541 | cell = wrong_type_argument (Qconsp, cell); |
542 | ||
543 | CHECK_IMPURE (cell); | |
544 | XCONS (cell)->car = newcar; | |
545 | return newcar; | |
546 | } | |
547 | ||
548 | DEFUN ("setcdr", Fsetcdr, Ssetcdr, 2, 2, 0, | |
e1960a18 | 549 | "Set the cdr of CELL to be NEWCDR. Returns NEWCDR.") |
7921925c JB |
550 | (cell, newcdr) |
551 | register Lisp_Object cell, newcdr; | |
552 | { | |
e9ebc175 | 553 | if (!CONSP (cell)) |
7921925c JB |
554 | cell = wrong_type_argument (Qconsp, cell); |
555 | ||
556 | CHECK_IMPURE (cell); | |
557 | XCONS (cell)->cdr = newcdr; | |
558 | return newcdr; | |
559 | } | |
560 | \f | |
561 | /* Extract and set components of symbols */ | |
562 | ||
563 | DEFUN ("boundp", Fboundp, Sboundp, 1, 1, 0, "T if SYMBOL's value is not void.") | |
d9c2a0f2 EN |
564 | (symbol) |
565 | register Lisp_Object symbol; | |
7921925c JB |
566 | { |
567 | Lisp_Object valcontents; | |
d9c2a0f2 | 568 | CHECK_SYMBOL (symbol, 0); |
7921925c | 569 | |
d9c2a0f2 | 570 | valcontents = XSYMBOL (symbol)->value; |
7921925c | 571 | |
aabf6bec KH |
572 | if (BUFFER_LOCAL_VALUEP (valcontents) |
573 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 574 | valcontents = swap_in_symval_forwarding (symbol, valcontents); |
7921925c | 575 | |
1bfcade3 | 576 | return (EQ (valcontents, Qunbound) ? Qnil : Qt); |
7921925c JB |
577 | } |
578 | ||
579 | DEFUN ("fboundp", Ffboundp, Sfboundp, 1, 1, 0, "T if SYMBOL's function definition is not void.") | |
d9c2a0f2 EN |
580 | (symbol) |
581 | register Lisp_Object symbol; | |
7921925c | 582 | { |
d9c2a0f2 EN |
583 | CHECK_SYMBOL (symbol, 0); |
584 | return (EQ (XSYMBOL (symbol)->function, Qunbound) ? Qnil : Qt); | |
7921925c JB |
585 | } |
586 | ||
587 | DEFUN ("makunbound", Fmakunbound, Smakunbound, 1, 1, 0, "Make SYMBOL's value be void.") | |
d9c2a0f2 EN |
588 | (symbol) |
589 | register Lisp_Object symbol; | |
7921925c | 590 | { |
d9c2a0f2 EN |
591 | CHECK_SYMBOL (symbol, 0); |
592 | if (NILP (symbol) || EQ (symbol, Qt)) | |
593 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); | |
594 | Fset (symbol, Qunbound); | |
595 | return symbol; | |
7921925c JB |
596 | } |
597 | ||
598 | DEFUN ("fmakunbound", Ffmakunbound, Sfmakunbound, 1, 1, 0, "Make SYMBOL's function definition be void.") | |
d9c2a0f2 EN |
599 | (symbol) |
600 | register Lisp_Object symbol; | |
7921925c | 601 | { |
d9c2a0f2 EN |
602 | CHECK_SYMBOL (symbol, 0); |
603 | if (NILP (symbol) || EQ (symbol, Qt)) | |
604 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); | |
605 | XSYMBOL (symbol)->function = Qunbound; | |
606 | return symbol; | |
7921925c JB |
607 | } |
608 | ||
609 | DEFUN ("symbol-function", Fsymbol_function, Ssymbol_function, 1, 1, 0, | |
610 | "Return SYMBOL's function definition. Error if that is void.") | |
ffd56f97 JB |
611 | (symbol) |
612 | register Lisp_Object symbol; | |
7921925c | 613 | { |
ffd56f97 JB |
614 | CHECK_SYMBOL (symbol, 0); |
615 | if (EQ (XSYMBOL (symbol)->function, Qunbound)) | |
616 | return Fsignal (Qvoid_function, Fcons (symbol, Qnil)); | |
617 | return XSYMBOL (symbol)->function; | |
7921925c JB |
618 | } |
619 | ||
620 | DEFUN ("symbol-plist", Fsymbol_plist, Ssymbol_plist, 1, 1, 0, "Return SYMBOL's property list.") | |
d9c2a0f2 EN |
621 | (symbol) |
622 | register Lisp_Object symbol; | |
7921925c | 623 | { |
d9c2a0f2 EN |
624 | CHECK_SYMBOL (symbol, 0); |
625 | return XSYMBOL (symbol)->plist; | |
7921925c JB |
626 | } |
627 | ||
628 | DEFUN ("symbol-name", Fsymbol_name, Ssymbol_name, 1, 1, 0, "Return SYMBOL's name, a string.") | |
d9c2a0f2 EN |
629 | (symbol) |
630 | register Lisp_Object symbol; | |
7921925c JB |
631 | { |
632 | register Lisp_Object name; | |
633 | ||
d9c2a0f2 EN |
634 | CHECK_SYMBOL (symbol, 0); |
635 | XSETSTRING (name, XSYMBOL (symbol)->name); | |
7921925c JB |
636 | return name; |
637 | } | |
638 | ||
639 | DEFUN ("fset", Ffset, Sfset, 2, 2, 0, | |
640 | "Set SYMBOL's function definition to NEWVAL, and return NEWVAL.") | |
d9c2a0f2 EN |
641 | (symbol, newdef) |
642 | register Lisp_Object symbol, newdef; | |
643 | { | |
644 | CHECK_SYMBOL (symbol, 0); | |
645 | if (NILP (symbol) || EQ (symbol, Qt)) | |
646 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); | |
647 | if (!NILP (Vautoload_queue) && !EQ (XSYMBOL (symbol)->function, Qunbound)) | |
648 | Vautoload_queue = Fcons (Fcons (symbol, XSYMBOL (symbol)->function), | |
7921925c | 649 | Vautoload_queue); |
d9c2a0f2 | 650 | XSYMBOL (symbol)->function = newdef; |
f845f2c9 | 651 | /* Handle automatic advice activation */ |
d9c2a0f2 | 652 | if (CONSP (XSYMBOL (symbol)->plist) && !NILP (Fget (symbol, Qad_advice_info))) |
f845f2c9 | 653 | { |
d9c2a0f2 EN |
654 | call2 (Qad_activate, symbol, Qnil); |
655 | newdef = XSYMBOL (symbol)->function; | |
f845f2c9 | 656 | } |
7921925c JB |
657 | return newdef; |
658 | } | |
659 | ||
d9bcdb34 RS |
660 | /* This name should be removed once it is eliminated from elsewhere. */ |
661 | ||
80df38a2 | 662 | DEFUN ("defalias", Fdefalias, Sdefalias, 2, 2, 0, |
fc08c367 RS |
663 | "Set SYMBOL's function definition to NEWVAL, and return NEWVAL.\n\ |
664 | Associates the function with the current load file, if any.") | |
d9c2a0f2 EN |
665 | (symbol, newdef) |
666 | register Lisp_Object symbol, newdef; | |
fc08c367 | 667 | { |
d9c2a0f2 EN |
668 | CHECK_SYMBOL (symbol, 0); |
669 | if (!NILP (Vautoload_queue) && !EQ (XSYMBOL (symbol)->function, Qunbound)) | |
670 | Vautoload_queue = Fcons (Fcons (symbol, XSYMBOL (symbol)->function), | |
fc08c367 | 671 | Vautoload_queue); |
d9c2a0f2 | 672 | XSYMBOL (symbol)->function = newdef; |
ab297811 | 673 | /* Handle automatic advice activation */ |
d9c2a0f2 | 674 | if (CONSP (XSYMBOL (symbol)->plist) && !NILP (Fget (symbol, Qad_advice_info))) |
ab297811 | 675 | { |
d9c2a0f2 EN |
676 | call2 (Qad_activate, symbol, Qnil); |
677 | newdef = XSYMBOL (symbol)->function; | |
ab297811 | 678 | } |
d9c2a0f2 | 679 | LOADHIST_ATTACH (symbol); |
fc08c367 RS |
680 | return newdef; |
681 | } | |
682 | ||
d9bcdb34 RS |
683 | DEFUN ("define-function", Fdefine_function, Sdefine_function, 2, 2, 0, |
684 | "Set SYMBOL's function definition to NEWVAL, and return NEWVAL.\n\ | |
685 | Associates the function with the current load file, if any.") | |
d9c2a0f2 EN |
686 | (symbol, newdef) |
687 | register Lisp_Object symbol, newdef; | |
d9bcdb34 | 688 | { |
d9c2a0f2 EN |
689 | CHECK_SYMBOL (symbol, 0); |
690 | if (!NILP (Vautoload_queue) && !EQ (XSYMBOL (symbol)->function, Qunbound)) | |
691 | Vautoload_queue = Fcons (Fcons (symbol, XSYMBOL (symbol)->function), | |
d9bcdb34 | 692 | Vautoload_queue); |
d9c2a0f2 | 693 | XSYMBOL (symbol)->function = newdef; |
ab297811 | 694 | /* Handle automatic advice activation */ |
d9c2a0f2 | 695 | if (CONSP (XSYMBOL (symbol)->plist) && !NILP (Fget (symbol, Qad_advice_info))) |
ab297811 | 696 | { |
d9c2a0f2 EN |
697 | call2 (Qad_activate, symbol, Qnil); |
698 | newdef = XSYMBOL (symbol)->function; | |
ab297811 | 699 | } |
d9c2a0f2 | 700 | LOADHIST_ATTACH (symbol); |
d9bcdb34 RS |
701 | return newdef; |
702 | } | |
703 | ||
7921925c JB |
704 | DEFUN ("setplist", Fsetplist, Ssetplist, 2, 2, 0, |
705 | "Set SYMBOL's property list to NEWVAL, and return NEWVAL.") | |
d9c2a0f2 EN |
706 | (symbol, newplist) |
707 | register Lisp_Object symbol, newplist; | |
7921925c | 708 | { |
d9c2a0f2 EN |
709 | CHECK_SYMBOL (symbol, 0); |
710 | XSYMBOL (symbol)->plist = newplist; | |
7921925c JB |
711 | return newplist; |
712 | } | |
ffd56f97 | 713 | |
7921925c JB |
714 | \f |
715 | /* Getting and setting values of symbols */ | |
716 | ||
717 | /* Given the raw contents of a symbol value cell, | |
718 | return the Lisp value of the symbol. | |
719 | This does not handle buffer-local variables; use | |
720 | swap_in_symval_forwarding for that. */ | |
721 | ||
722 | Lisp_Object | |
723 | do_symval_forwarding (valcontents) | |
724 | register Lisp_Object valcontents; | |
725 | { | |
726 | register Lisp_Object val; | |
46b2ac21 KH |
727 | int offset; |
728 | if (MISCP (valcontents)) | |
324a6eef | 729 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
730 | { |
731 | case Lisp_Misc_Intfwd: | |
732 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
733 | return val; | |
7921925c | 734 | |
46b2ac21 KH |
735 | case Lisp_Misc_Boolfwd: |
736 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
7921925c | 737 | |
46b2ac21 KH |
738 | case Lisp_Misc_Objfwd: |
739 | return *XOBJFWD (valcontents)->objvar; | |
7921925c | 740 | |
46b2ac21 KH |
741 | case Lisp_Misc_Buffer_Objfwd: |
742 | offset = XBUFFER_OBJFWD (valcontents)->offset; | |
743 | return *(Lisp_Object *)(offset + (char *)current_buffer); | |
7403b5c8 | 744 | |
e5f8af9e KH |
745 | case Lisp_Misc_Kboard_Objfwd: |
746 | offset = XKBOARD_OBJFWD (valcontents)->offset; | |
747 | return *(Lisp_Object *)(offset + (char *)current_kboard); | |
46b2ac21 | 748 | } |
7921925c JB |
749 | return valcontents; |
750 | } | |
751 | ||
d9c2a0f2 EN |
752 | /* Store NEWVAL into SYMBOL, where VALCONTENTS is found in the value cell |
753 | of SYMBOL. If SYMBOL is buffer-local, VALCONTENTS should be the | |
7921925c JB |
754 | buffer-independent contents of the value cell: forwarded just one |
755 | step past the buffer-localness. */ | |
756 | ||
757 | void | |
d9c2a0f2 EN |
758 | store_symval_forwarding (symbol, valcontents, newval) |
759 | Lisp_Object symbol; | |
7921925c JB |
760 | register Lisp_Object valcontents, newval; |
761 | { | |
0220c518 | 762 | switch (SWITCH_ENUM_CAST (XTYPE (valcontents))) |
7921925c | 763 | { |
46b2ac21 | 764 | case Lisp_Misc: |
324a6eef | 765 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
766 | { |
767 | case Lisp_Misc_Intfwd: | |
768 | CHECK_NUMBER (newval, 1); | |
769 | *XINTFWD (valcontents)->intvar = XINT (newval); | |
e6c82a8d RS |
770 | if (*XINTFWD (valcontents)->intvar != XINT (newval)) |
771 | error ("Value out of range for variable `%s'", | |
d9c2a0f2 | 772 | XSYMBOL (symbol)->name->data); |
46b2ac21 KH |
773 | break; |
774 | ||
775 | case Lisp_Misc_Boolfwd: | |
776 | *XBOOLFWD (valcontents)->boolvar = NILP (newval) ? 0 : 1; | |
777 | break; | |
778 | ||
779 | case Lisp_Misc_Objfwd: | |
780 | *XOBJFWD (valcontents)->objvar = newval; | |
781 | break; | |
782 | ||
783 | case Lisp_Misc_Buffer_Objfwd: | |
784 | { | |
785 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
786 | Lisp_Object type; | |
787 | ||
788 | type = *(Lisp_Object *)(offset + (char *)&buffer_local_types); | |
789 | if (! NILP (type) && ! NILP (newval) | |
790 | && XTYPE (newval) != XINT (type)) | |
791 | buffer_slot_type_mismatch (offset); | |
792 | ||
793 | *(Lisp_Object *)(offset + (char *)current_buffer) = newval; | |
46b2ac21 | 794 | } |
7403b5c8 KH |
795 | break; |
796 | ||
e5f8af9e KH |
797 | case Lisp_Misc_Kboard_Objfwd: |
798 | (*(Lisp_Object *)((char *)current_kboard | |
799 | + XKBOARD_OBJFWD (valcontents)->offset)) | |
7403b5c8 KH |
800 | = newval; |
801 | break; | |
802 | ||
46b2ac21 KH |
803 | default: |
804 | goto def; | |
805 | } | |
7921925c JB |
806 | break; |
807 | ||
7921925c | 808 | default: |
46b2ac21 | 809 | def: |
d9c2a0f2 | 810 | valcontents = XSYMBOL (symbol)->value; |
e9ebc175 KH |
811 | if (BUFFER_LOCAL_VALUEP (valcontents) |
812 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
8d4afcac | 813 | XBUFFER_LOCAL_VALUE (valcontents)->car = newval; |
7921925c | 814 | else |
d9c2a0f2 | 815 | XSYMBOL (symbol)->value = newval; |
7921925c JB |
816 | } |
817 | } | |
818 | ||
d9c2a0f2 | 819 | /* Set up the buffer-local symbol SYMBOL for validity in the current |
7921925c JB |
820 | buffer. VALCONTENTS is the contents of its value cell. |
821 | Return the value forwarded one step past the buffer-local indicator. */ | |
822 | ||
823 | static Lisp_Object | |
d9c2a0f2 EN |
824 | swap_in_symval_forwarding (symbol, valcontents) |
825 | Lisp_Object symbol, valcontents; | |
7921925c | 826 | { |
7403b5c8 | 827 | /* valcontents is a pointer to a struct resembling the cons |
7921925c | 828 | (REALVALUE BUFFER CURRENT-ALIST-ELEMENT . DEFAULT-VALUE)). |
7403b5c8 | 829 | |
7921925c | 830 | CURRENT-ALIST-ELEMENT is a pointer to an element of BUFFER's |
533984a8 JB |
831 | local_var_alist, that being the element whose car is this |
832 | variable. Or it can be a pointer to the | |
833 | (CURRENT-ALIST-ELEMENT . DEFAULT-VALUE), if BUFFER does not have | |
834 | an element in its alist for this variable. | |
835 | ||
836 | If the current buffer is not BUFFER, we store the current | |
837 | REALVALUE value into CURRENT-ALIST-ELEMENT, then find the | |
838 | appropriate alist element for the buffer now current and set up | |
839 | CURRENT-ALIST-ELEMENT. Then we set REALVALUE out of that | |
840 | element, and store into BUFFER. | |
841 | ||
7921925c JB |
842 | Note that REALVALUE can be a forwarding pointer. */ |
843 | ||
844 | register Lisp_Object tem1; | |
8d4afcac | 845 | tem1 = XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car; |
7921925c | 846 | |
a33ef3ab | 847 | if (NILP (tem1) || current_buffer != XBUFFER (tem1)) |
7921925c | 848 | { |
8d4afcac KH |
849 | tem1 = XCONS (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr)->car; |
850 | Fsetcdr (tem1, | |
851 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->car)); | |
d9c2a0f2 | 852 | tem1 = assq_no_quit (symbol, current_buffer->local_var_alist); |
a33ef3ab | 853 | if (NILP (tem1)) |
8d4afcac KH |
854 | tem1 = XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr; |
855 | XCONS (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr)->car = tem1; | |
856 | XSETBUFFER (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car, | |
857 | current_buffer); | |
d9c2a0f2 | 858 | store_symval_forwarding (symbol, XBUFFER_LOCAL_VALUE (valcontents)->car, |
8d4afcac | 859 | Fcdr (tem1)); |
7921925c | 860 | } |
8d4afcac | 861 | return XBUFFER_LOCAL_VALUE (valcontents)->car; |
7921925c JB |
862 | } |
863 | \f | |
14e76af9 JB |
864 | /* Find the value of a symbol, returning Qunbound if it's not bound. |
865 | This is helpful for code which just wants to get a variable's value | |
8e6208c5 | 866 | if it has one, without signaling an error. |
14e76af9 JB |
867 | Note that it must not be possible to quit |
868 | within this function. Great care is required for this. */ | |
7921925c | 869 | |
14e76af9 | 870 | Lisp_Object |
d9c2a0f2 EN |
871 | find_symbol_value (symbol) |
872 | Lisp_Object symbol; | |
7921925c JB |
873 | { |
874 | register Lisp_Object valcontents, tem1; | |
875 | register Lisp_Object val; | |
d9c2a0f2 EN |
876 | CHECK_SYMBOL (symbol, 0); |
877 | valcontents = XSYMBOL (symbol)->value; | |
7921925c | 878 | |
aabf6bec KH |
879 | if (BUFFER_LOCAL_VALUEP (valcontents) |
880 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 881 | valcontents = swap_in_symval_forwarding (symbol, valcontents); |
7921925c | 882 | |
536b772a KH |
883 | if (MISCP (valcontents)) |
884 | { | |
324a6eef | 885 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
886 | { |
887 | case Lisp_Misc_Intfwd: | |
888 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
889 | return val; | |
7921925c | 890 | |
46b2ac21 KH |
891 | case Lisp_Misc_Boolfwd: |
892 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
7921925c | 893 | |
46b2ac21 KH |
894 | case Lisp_Misc_Objfwd: |
895 | return *XOBJFWD (valcontents)->objvar; | |
7921925c | 896 | |
46b2ac21 KH |
897 | case Lisp_Misc_Buffer_Objfwd: |
898 | return *(Lisp_Object *)(XBUFFER_OBJFWD (valcontents)->offset | |
899 | + (char *)current_buffer); | |
7403b5c8 | 900 | |
e5f8af9e KH |
901 | case Lisp_Misc_Kboard_Objfwd: |
902 | return *(Lisp_Object *)(XKBOARD_OBJFWD (valcontents)->offset | |
903 | + (char *)current_kboard); | |
46b2ac21 | 904 | } |
7921925c JB |
905 | } |
906 | ||
907 | return valcontents; | |
908 | } | |
909 | ||
14e76af9 JB |
910 | DEFUN ("symbol-value", Fsymbol_value, Ssymbol_value, 1, 1, 0, |
911 | "Return SYMBOL's value. Error if that is void.") | |
d9c2a0f2 EN |
912 | (symbol) |
913 | Lisp_Object symbol; | |
14e76af9 | 914 | { |
0671d7c0 | 915 | Lisp_Object val; |
14e76af9 | 916 | |
d9c2a0f2 | 917 | val = find_symbol_value (symbol); |
14e76af9 | 918 | if (EQ (val, Qunbound)) |
d9c2a0f2 | 919 | return Fsignal (Qvoid_variable, Fcons (symbol, Qnil)); |
14e76af9 JB |
920 | else |
921 | return val; | |
922 | } | |
923 | ||
7921925c JB |
924 | DEFUN ("set", Fset, Sset, 2, 2, 0, |
925 | "Set SYMBOL's value to NEWVAL, and return NEWVAL.") | |
d9c2a0f2 EN |
926 | (symbol, newval) |
927 | register Lisp_Object symbol, newval; | |
7921925c | 928 | { |
1bfcade3 | 929 | int voide = EQ (newval, Qunbound); |
7921925c | 930 | |
7921925c | 931 | register Lisp_Object valcontents, tem1, current_alist_element; |
7921925c | 932 | |
d9c2a0f2 EN |
933 | CHECK_SYMBOL (symbol, 0); |
934 | if (NILP (symbol) || EQ (symbol, Qt)) | |
935 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); | |
936 | valcontents = XSYMBOL (symbol)->value; | |
7921925c | 937 | |
e9ebc175 | 938 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 939 | { |
46b2ac21 | 940 | register int idx = XBUFFER_OBJFWD (valcontents)->offset; |
865c050f KH |
941 | register int mask = XINT (*((Lisp_Object *) |
942 | (idx + (char *)&buffer_local_flags))); | |
7921925c JB |
943 | if (mask > 0) |
944 | current_buffer->local_var_flags |= mask; | |
945 | } | |
946 | ||
e9ebc175 KH |
947 | else if (BUFFER_LOCAL_VALUEP (valcontents) |
948 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c | 949 | { |
8d4afcac KH |
950 | /* valcontents is actually a pointer to a struct resembling a cons, |
951 | with contents something like: | |
d8cafeb5 JB |
952 | (REALVALUE BUFFER CURRENT-ALIST-ELEMENT . DEFAULT-VALUE). |
953 | ||
954 | BUFFER is the last buffer for which this symbol's value was | |
955 | made up to date. | |
956 | ||
957 | CURRENT-ALIST-ELEMENT is a pointer to an element of BUFFER's | |
958 | local_var_alist, that being the element whose car is this | |
959 | variable. Or it can be a pointer to the | |
960 | (CURRENT-ALIST-ELEMENT . DEFAULT-VALUE), if BUFFER does not | |
961 | have an element in its alist for this variable (that is, if | |
962 | BUFFER sees the default value of this variable). | |
963 | ||
964 | If we want to examine or set the value and BUFFER is current, | |
965 | we just examine or set REALVALUE. If BUFFER is not current, we | |
966 | store the current REALVALUE value into CURRENT-ALIST-ELEMENT, | |
967 | then find the appropriate alist element for the buffer now | |
968 | current and set up CURRENT-ALIST-ELEMENT. Then we set | |
969 | REALVALUE out of that element, and store into BUFFER. | |
970 | ||
971 | If we are setting the variable and the current buffer does | |
972 | not have an alist entry for this variable, an alist entry is | |
973 | created. | |
974 | ||
975 | Note that REALVALUE can be a forwarding pointer. Each time | |
976 | it is examined or set, forwarding must be done. */ | |
977 | ||
978 | /* What value are we caching right now? */ | |
979 | current_alist_element = | |
8d4afcac | 980 | XCONS (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr)->car; |
d8cafeb5 JB |
981 | |
982 | /* If the current buffer is not the buffer whose binding is | |
983 | currently cached, or if it's a Lisp_Buffer_Local_Value and | |
984 | we're looking at the default value, the cache is invalid; we | |
985 | need to write it out, and find the new CURRENT-ALIST-ELEMENT. */ | |
986 | if ((current_buffer | |
8d4afcac | 987 | != XBUFFER (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car)) |
e9ebc175 | 988 | || (BUFFER_LOCAL_VALUEP (valcontents) |
b06faa91 JB |
989 | && EQ (XCONS (current_alist_element)->car, |
990 | current_alist_element))) | |
7921925c | 991 | { |
d8cafeb5 JB |
992 | /* Write out the cached value for the old buffer; copy it |
993 | back to its alist element. This works if the current | |
994 | buffer only sees the default value, too. */ | |
995 | Fsetcdr (current_alist_element, | |
8d4afcac | 996 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->car)); |
7921925c | 997 | |
d8cafeb5 | 998 | /* Find the new value for CURRENT-ALIST-ELEMENT. */ |
d9c2a0f2 | 999 | tem1 = Fassq (symbol, current_buffer->local_var_alist); |
a33ef3ab | 1000 | if (NILP (tem1)) |
d8cafeb5 JB |
1001 | { |
1002 | /* This buffer still sees the default value. */ | |
1003 | ||
1004 | /* If the variable is a Lisp_Some_Buffer_Local_Value, | |
1005 | make CURRENT-ALIST-ELEMENT point to itself, | |
1006 | indicating that we're seeing the default value. */ | |
e9ebc175 | 1007 | if (SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
8d4afcac | 1008 | tem1 = XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr; |
d8cafeb5 JB |
1009 | |
1010 | /* If it's a Lisp_Buffer_Local_Value, give this buffer a | |
1011 | new assoc for a local value and set | |
1012 | CURRENT-ALIST-ELEMENT to point to that. */ | |
1013 | else | |
1014 | { | |
d9c2a0f2 | 1015 | tem1 = Fcons (symbol, Fcdr (current_alist_element)); |
d8cafeb5 JB |
1016 | current_buffer->local_var_alist = |
1017 | Fcons (tem1, current_buffer->local_var_alist); | |
1018 | } | |
1019 | } | |
1020 | /* Cache the new buffer's assoc in CURRENT-ALIST-ELEMENT. */ | |
8d4afcac KH |
1021 | XCONS (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr)->car |
1022 | = tem1; | |
d8cafeb5 JB |
1023 | |
1024 | /* Set BUFFER, now that CURRENT-ALIST-ELEMENT is accurate. */ | |
8d4afcac KH |
1025 | XSETBUFFER (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car, |
1026 | current_buffer); | |
7921925c | 1027 | } |
8d4afcac | 1028 | valcontents = XBUFFER_LOCAL_VALUE (valcontents)->car; |
7921925c | 1029 | } |
d8cafeb5 | 1030 | |
7921925c JB |
1031 | /* If storing void (making the symbol void), forward only through |
1032 | buffer-local indicator, not through Lisp_Objfwd, etc. */ | |
1033 | if (voide) | |
d9c2a0f2 | 1034 | store_symval_forwarding (symbol, Qnil, newval); |
7921925c | 1035 | else |
d9c2a0f2 | 1036 | store_symval_forwarding (symbol, valcontents, newval); |
d8cafeb5 | 1037 | |
7921925c JB |
1038 | return newval; |
1039 | } | |
1040 | \f | |
1041 | /* Access or set a buffer-local symbol's default value. */ | |
1042 | ||
d9c2a0f2 | 1043 | /* Return the default value of SYMBOL, but don't check for voidness. |
1bfcade3 | 1044 | Return Qunbound if it is void. */ |
7921925c JB |
1045 | |
1046 | Lisp_Object | |
d9c2a0f2 EN |
1047 | default_value (symbol) |
1048 | Lisp_Object symbol; | |
7921925c JB |
1049 | { |
1050 | register Lisp_Object valcontents; | |
1051 | ||
d9c2a0f2 EN |
1052 | CHECK_SYMBOL (symbol, 0); |
1053 | valcontents = XSYMBOL (symbol)->value; | |
7921925c JB |
1054 | |
1055 | /* For a built-in buffer-local variable, get the default value | |
1056 | rather than letting do_symval_forwarding get the current value. */ | |
e9ebc175 | 1057 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1058 | { |
46b2ac21 | 1059 | register int idx = XBUFFER_OBJFWD (valcontents)->offset; |
7921925c | 1060 | |
865c050f | 1061 | if (XINT (*(Lisp_Object *) (idx + (char *) &buffer_local_flags)) != 0) |
7921925c JB |
1062 | return *(Lisp_Object *)(idx + (char *) &buffer_defaults); |
1063 | } | |
1064 | ||
1065 | /* Handle user-created local variables. */ | |
e9ebc175 KH |
1066 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1067 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c JB |
1068 | { |
1069 | /* If var is set up for a buffer that lacks a local value for it, | |
1070 | the current value is nominally the default value. | |
1071 | But the current value slot may be more up to date, since | |
1072 | ordinary setq stores just that slot. So use that. */ | |
1073 | Lisp_Object current_alist_element, alist_element_car; | |
1074 | current_alist_element | |
8d4afcac | 1075 | = XCONS (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr)->car; |
7921925c JB |
1076 | alist_element_car = XCONS (current_alist_element)->car; |
1077 | if (EQ (alist_element_car, current_alist_element)) | |
8d4afcac | 1078 | return do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->car); |
7921925c | 1079 | else |
8d4afcac | 1080 | return XCONS (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr)->cdr; |
7921925c JB |
1081 | } |
1082 | /* For other variables, get the current value. */ | |
1083 | return do_symval_forwarding (valcontents); | |
1084 | } | |
1085 | ||
1086 | DEFUN ("default-boundp", Fdefault_boundp, Sdefault_boundp, 1, 1, 0, | |
1087 | "Return T if SYMBOL has a non-void default value.\n\ | |
1088 | This is the value that is seen in buffers that do not have their own values\n\ | |
1089 | for this variable.") | |
d9c2a0f2 EN |
1090 | (symbol) |
1091 | Lisp_Object symbol; | |
7921925c JB |
1092 | { |
1093 | register Lisp_Object value; | |
1094 | ||
d9c2a0f2 | 1095 | value = default_value (symbol); |
1bfcade3 | 1096 | return (EQ (value, Qunbound) ? Qnil : Qt); |
7921925c JB |
1097 | } |
1098 | ||
1099 | DEFUN ("default-value", Fdefault_value, Sdefault_value, 1, 1, 0, | |
1100 | "Return SYMBOL's default value.\n\ | |
1101 | This is the value that is seen in buffers that do not have their own values\n\ | |
1102 | for this variable. The default value is meaningful for variables with\n\ | |
1103 | local bindings in certain buffers.") | |
d9c2a0f2 EN |
1104 | (symbol) |
1105 | Lisp_Object symbol; | |
7921925c JB |
1106 | { |
1107 | register Lisp_Object value; | |
1108 | ||
d9c2a0f2 | 1109 | value = default_value (symbol); |
1bfcade3 | 1110 | if (EQ (value, Qunbound)) |
d9c2a0f2 | 1111 | return Fsignal (Qvoid_variable, Fcons (symbol, Qnil)); |
7921925c JB |
1112 | return value; |
1113 | } | |
1114 | ||
1115 | DEFUN ("set-default", Fset_default, Sset_default, 2, 2, 0, | |
1116 | "Set SYMBOL's default value to VAL. SYMBOL and VAL are evaluated.\n\ | |
1117 | The default value is seen in buffers that do not have their own values\n\ | |
1118 | for this variable.") | |
d9c2a0f2 EN |
1119 | (symbol, value) |
1120 | Lisp_Object symbol, value; | |
7921925c JB |
1121 | { |
1122 | register Lisp_Object valcontents, current_alist_element, alist_element_buffer; | |
1123 | ||
d9c2a0f2 EN |
1124 | CHECK_SYMBOL (symbol, 0); |
1125 | valcontents = XSYMBOL (symbol)->value; | |
7921925c JB |
1126 | |
1127 | /* Handle variables like case-fold-search that have special slots | |
1128 | in the buffer. Make them work apparently like Lisp_Buffer_Local_Value | |
1129 | variables. */ | |
e9ebc175 | 1130 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1131 | { |
46b2ac21 | 1132 | register int idx = XBUFFER_OBJFWD (valcontents)->offset; |
7921925c | 1133 | register struct buffer *b; |
865c050f KH |
1134 | register int mask = XINT (*((Lisp_Object *) |
1135 | (idx + (char *)&buffer_local_flags))); | |
7921925c JB |
1136 | |
1137 | if (mask > 0) | |
1138 | { | |
1139 | *(Lisp_Object *)(idx + (char *) &buffer_defaults) = value; | |
1140 | for (b = all_buffers; b; b = b->next) | |
1141 | if (!(b->local_var_flags & mask)) | |
1142 | *(Lisp_Object *)(idx + (char *) b) = value; | |
1143 | } | |
1144 | return value; | |
1145 | } | |
1146 | ||
e9ebc175 KH |
1147 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1148 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 1149 | return Fset (symbol, value); |
7921925c JB |
1150 | |
1151 | /* Store new value into the DEFAULT-VALUE slot */ | |
8d4afcac | 1152 | XCONS (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr)->cdr = value; |
7921925c JB |
1153 | |
1154 | /* If that slot is current, we must set the REALVALUE slot too */ | |
8d4afcac KH |
1155 | current_alist_element |
1156 | = XCONS (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr)->car; | |
7921925c JB |
1157 | alist_element_buffer = Fcar (current_alist_element); |
1158 | if (EQ (alist_element_buffer, current_alist_element)) | |
d9c2a0f2 | 1159 | store_symval_forwarding (symbol, XBUFFER_LOCAL_VALUE (valcontents)->car, |
8d4afcac | 1160 | value); |
7921925c JB |
1161 | |
1162 | return value; | |
1163 | } | |
1164 | ||
1165 | DEFUN ("setq-default", Fsetq_default, Ssetq_default, 2, UNEVALLED, 0, | |
0412bf67 RS |
1166 | "Set the default value of variable VAR to VALUE.\n\ |
1167 | VAR, the variable name, is literal (not evaluated);\n\ | |
1168 | VALUE is an expression and it is evaluated.\n\ | |
1169 | The default value of a variable is seen in buffers\n\ | |
1170 | that do not have their own values for the variable.\n\ | |
1171 | \n\ | |
1172 | More generally, you can use multiple variables and values, as in\n\ | |
d9c2a0f2 EN |
1173 | (setq-default SYMBOL VALUE SYMBOL VALUE...)\n\ |
1174 | This sets each SYMBOL's default value to the corresponding VALUE.\n\ | |
1175 | The VALUE for the Nth SYMBOL can refer to the new default values\n\ | |
0412bf67 | 1176 | of previous SYMs.") |
7921925c JB |
1177 | (args) |
1178 | Lisp_Object args; | |
1179 | { | |
1180 | register Lisp_Object args_left; | |
d9c2a0f2 | 1181 | register Lisp_Object val, symbol; |
7921925c JB |
1182 | struct gcpro gcpro1; |
1183 | ||
a33ef3ab | 1184 | if (NILP (args)) |
7921925c JB |
1185 | return Qnil; |
1186 | ||
1187 | args_left = args; | |
1188 | GCPRO1 (args); | |
1189 | ||
1190 | do | |
1191 | { | |
1192 | val = Feval (Fcar (Fcdr (args_left))); | |
d9c2a0f2 EN |
1193 | symbol = Fcar (args_left); |
1194 | Fset_default (symbol, val); | |
7921925c JB |
1195 | args_left = Fcdr (Fcdr (args_left)); |
1196 | } | |
a33ef3ab | 1197 | while (!NILP (args_left)); |
7921925c JB |
1198 | |
1199 | UNGCPRO; | |
1200 | return val; | |
1201 | } | |
1202 | \f | |
a5ca2b75 JB |
1203 | /* Lisp functions for creating and removing buffer-local variables. */ |
1204 | ||
7921925c JB |
1205 | DEFUN ("make-variable-buffer-local", Fmake_variable_buffer_local, Smake_variable_buffer_local, |
1206 | 1, 1, "vMake Variable Buffer Local: ", | |
1207 | "Make VARIABLE have a separate value for each buffer.\n\ | |
1208 | At any time, the value for the current buffer is in effect.\n\ | |
1209 | There is also a default value which is seen in any buffer which has not yet\n\ | |
1210 | set its own value.\n\ | |
1211 | Using `set' or `setq' to set the variable causes it to have a separate value\n\ | |
1212 | for the current buffer if it was previously using the default value.\n\ | |
1213 | The function `default-value' gets the default value and `set-default' sets it.") | |
d9c2a0f2 EN |
1214 | (variable) |
1215 | register Lisp_Object variable; | |
7921925c | 1216 | { |
8d4afcac | 1217 | register Lisp_Object tem, valcontents, newval; |
7921925c | 1218 | |
d9c2a0f2 | 1219 | CHECK_SYMBOL (variable, 0); |
7921925c | 1220 | |
d9c2a0f2 EN |
1221 | valcontents = XSYMBOL (variable)->value; |
1222 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents)) | |
1223 | error ("Symbol %s may not be buffer-local", XSYMBOL (variable)->name->data); | |
7921925c | 1224 | |
e9ebc175 | 1225 | if (BUFFER_LOCAL_VALUEP (valcontents) || BUFFER_OBJFWDP (valcontents)) |
d9c2a0f2 | 1226 | return variable; |
e9ebc175 | 1227 | if (SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c | 1228 | { |
d9c2a0f2 EN |
1229 | XMISCTYPE (XSYMBOL (variable)->value) = Lisp_Misc_Buffer_Local_Value; |
1230 | return variable; | |
7921925c JB |
1231 | } |
1232 | if (EQ (valcontents, Qunbound)) | |
d9c2a0f2 EN |
1233 | XSYMBOL (variable)->value = Qnil; |
1234 | tem = Fcons (Qnil, Fsymbol_value (variable)); | |
7921925c | 1235 | XCONS (tem)->car = tem; |
8d4afcac | 1236 | newval = allocate_misc (); |
324a6eef | 1237 | XMISCTYPE (newval) = Lisp_Misc_Buffer_Local_Value; |
d9c2a0f2 | 1238 | XBUFFER_LOCAL_VALUE (newval)->car = XSYMBOL (variable)->value; |
8d4afcac | 1239 | XBUFFER_LOCAL_VALUE (newval)->cdr = Fcons (Fcurrent_buffer (), tem); |
d9c2a0f2 EN |
1240 | XSYMBOL (variable)->value = newval; |
1241 | return variable; | |
7921925c JB |
1242 | } |
1243 | ||
1244 | DEFUN ("make-local-variable", Fmake_local_variable, Smake_local_variable, | |
1245 | 1, 1, "vMake Local Variable: ", | |
1246 | "Make VARIABLE have a separate value in the current buffer.\n\ | |
1247 | Other buffers will continue to share a common default value.\n\ | |
a782f0d5 RS |
1248 | \(The buffer-local value of VARIABLE starts out as the same value\n\ |
1249 | VARIABLE previously had. If VARIABLE was void, it remains void.\)\n\ | |
7921925c JB |
1250 | See also `make-variable-buffer-local'.\n\n\ |
1251 | If the variable is already arranged to become local when set,\n\ | |
1252 | this function causes a local value to exist for this buffer,\n\ | |
62476adc RS |
1253 | just as setting the variable would do.\n\ |
1254 | \n\ | |
1255 | Do not use `make-local-variable' to make a hook variable buffer-local.\n\ | |
1256 | Use `make-local-hook' instead.") | |
d9c2a0f2 EN |
1257 | (variable) |
1258 | register Lisp_Object variable; | |
7921925c JB |
1259 | { |
1260 | register Lisp_Object tem, valcontents; | |
1261 | ||
d9c2a0f2 | 1262 | CHECK_SYMBOL (variable, 0); |
7921925c | 1263 | |
d9c2a0f2 EN |
1264 | valcontents = XSYMBOL (variable)->value; |
1265 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents)) | |
1266 | error ("Symbol %s may not be buffer-local", XSYMBOL (variable)->name->data); | |
7921925c | 1267 | |
e9ebc175 | 1268 | if (BUFFER_LOCAL_VALUEP (valcontents) || BUFFER_OBJFWDP (valcontents)) |
7921925c | 1269 | { |
d9c2a0f2 | 1270 | tem = Fboundp (variable); |
7403b5c8 | 1271 | |
7921925c JB |
1272 | /* Make sure the symbol has a local value in this particular buffer, |
1273 | by setting it to the same value it already has. */ | |
d9c2a0f2 EN |
1274 | Fset (variable, (EQ (tem, Qt) ? Fsymbol_value (variable) : Qunbound)); |
1275 | return variable; | |
7921925c | 1276 | } |
d9c2a0f2 | 1277 | /* Make sure symbol is set up to hold per-buffer values */ |
e9ebc175 | 1278 | if (!SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c | 1279 | { |
8d4afcac | 1280 | Lisp_Object newval; |
7921925c JB |
1281 | tem = Fcons (Qnil, do_symval_forwarding (valcontents)); |
1282 | XCONS (tem)->car = tem; | |
8d4afcac | 1283 | newval = allocate_misc (); |
324a6eef | 1284 | XMISCTYPE (newval) = Lisp_Misc_Some_Buffer_Local_Value; |
d9c2a0f2 | 1285 | XBUFFER_LOCAL_VALUE (newval)->car = XSYMBOL (variable)->value; |
8d4afcac | 1286 | XBUFFER_LOCAL_VALUE (newval)->cdr = Fcons (Qnil, tem); |
d9c2a0f2 | 1287 | XSYMBOL (variable)->value = newval; |
7921925c | 1288 | } |
d9c2a0f2 EN |
1289 | /* Make sure this buffer has its own value of symbol */ |
1290 | tem = Fassq (variable, current_buffer->local_var_alist); | |
a33ef3ab | 1291 | if (NILP (tem)) |
7921925c | 1292 | { |
a5d004a1 RS |
1293 | /* Swap out any local binding for some other buffer, and make |
1294 | sure the current value is permanently recorded, if it's the | |
1295 | default value. */ | |
d9c2a0f2 | 1296 | find_symbol_value (variable); |
a5d004a1 | 1297 | |
7921925c | 1298 | current_buffer->local_var_alist |
d9c2a0f2 | 1299 | = Fcons (Fcons (variable, XCONS (XCONS (XBUFFER_LOCAL_VALUE (XSYMBOL (variable)->value)->cdr)->cdr)->cdr), |
7921925c JB |
1300 | current_buffer->local_var_alist); |
1301 | ||
1302 | /* Make sure symbol does not think it is set up for this buffer; | |
1303 | force it to look once again for this buffer's value */ | |
1304 | { | |
8d4afcac | 1305 | Lisp_Object *pvalbuf; |
a5d004a1 | 1306 | |
d9c2a0f2 | 1307 | valcontents = XSYMBOL (variable)->value; |
a5d004a1 | 1308 | |
8d4afcac KH |
1309 | pvalbuf = &XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car; |
1310 | if (current_buffer == XBUFFER (*pvalbuf)) | |
1311 | *pvalbuf = Qnil; | |
7921925c | 1312 | } |
7921925c | 1313 | } |
a5ca2b75 JB |
1314 | |
1315 | /* If the symbol forwards into a C variable, then swap in the | |
1316 | variable for this buffer immediately. If C code modifies the | |
1317 | variable before we swap in, then that new value will clobber the | |
1318 | default value the next time we swap. */ | |
d9c2a0f2 | 1319 | valcontents = XBUFFER_LOCAL_VALUE (XSYMBOL (variable)->value)->car; |
e9ebc175 | 1320 | if (INTFWDP (valcontents) || BOOLFWDP (valcontents) || OBJFWDP (valcontents)) |
d9c2a0f2 | 1321 | swap_in_symval_forwarding (variable, XSYMBOL (variable)->value); |
a5ca2b75 | 1322 | |
d9c2a0f2 | 1323 | return variable; |
7921925c JB |
1324 | } |
1325 | ||
1326 | DEFUN ("kill-local-variable", Fkill_local_variable, Skill_local_variable, | |
1327 | 1, 1, "vKill Local Variable: ", | |
1328 | "Make VARIABLE no longer have a separate value in the current buffer.\n\ | |
1329 | From now on the default value will apply in this buffer.") | |
d9c2a0f2 EN |
1330 | (variable) |
1331 | register Lisp_Object variable; | |
7921925c JB |
1332 | { |
1333 | register Lisp_Object tem, valcontents; | |
1334 | ||
d9c2a0f2 | 1335 | CHECK_SYMBOL (variable, 0); |
7921925c | 1336 | |
d9c2a0f2 | 1337 | valcontents = XSYMBOL (variable)->value; |
7921925c | 1338 | |
e9ebc175 | 1339 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1340 | { |
46b2ac21 | 1341 | register int idx = XBUFFER_OBJFWD (valcontents)->offset; |
865c050f KH |
1342 | register int mask = XINT (*((Lisp_Object*) |
1343 | (idx + (char *)&buffer_local_flags))); | |
7921925c JB |
1344 | |
1345 | if (mask > 0) | |
1346 | { | |
1347 | *(Lisp_Object *)(idx + (char *) current_buffer) | |
1348 | = *(Lisp_Object *)(idx + (char *) &buffer_defaults); | |
1349 | current_buffer->local_var_flags &= ~mask; | |
1350 | } | |
d9c2a0f2 | 1351 | return variable; |
7921925c JB |
1352 | } |
1353 | ||
e9ebc175 KH |
1354 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1355 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 1356 | return variable; |
7921925c JB |
1357 | |
1358 | /* Get rid of this buffer's alist element, if any */ | |
1359 | ||
d9c2a0f2 | 1360 | tem = Fassq (variable, current_buffer->local_var_alist); |
a33ef3ab | 1361 | if (!NILP (tem)) |
8d4afcac KH |
1362 | current_buffer->local_var_alist |
1363 | = Fdelq (tem, current_buffer->local_var_alist); | |
7921925c JB |
1364 | |
1365 | /* Make sure symbol does not think it is set up for this buffer; | |
1366 | force it to look once again for this buffer's value */ | |
1367 | { | |
8d4afcac | 1368 | Lisp_Object *pvalbuf; |
d9c2a0f2 | 1369 | valcontents = XSYMBOL (variable)->value; |
8d4afcac KH |
1370 | pvalbuf = &XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car; |
1371 | if (current_buffer == XBUFFER (*pvalbuf)) | |
1372 | *pvalbuf = Qnil; | |
7921925c JB |
1373 | } |
1374 | ||
d9c2a0f2 | 1375 | return variable; |
7921925c | 1376 | } |
62476adc RS |
1377 | |
1378 | DEFUN ("local-variable-p", Flocal_variable_p, Slocal_variable_p, | |
c48ead86 KH |
1379 | 1, 2, 0, |
1380 | "Non-nil if VARIABLE has a local binding in buffer BUFFER.\n\ | |
1381 | BUFFER defaults to the current buffer.") | |
d9c2a0f2 EN |
1382 | (variable, buffer) |
1383 | register Lisp_Object variable, buffer; | |
62476adc RS |
1384 | { |
1385 | Lisp_Object valcontents; | |
c48ead86 KH |
1386 | register struct buffer *buf; |
1387 | ||
1388 | if (NILP (buffer)) | |
1389 | buf = current_buffer; | |
1390 | else | |
1391 | { | |
1392 | CHECK_BUFFER (buffer, 0); | |
1393 | buf = XBUFFER (buffer); | |
1394 | } | |
62476adc | 1395 | |
d9c2a0f2 | 1396 | CHECK_SYMBOL (variable, 0); |
62476adc | 1397 | |
d9c2a0f2 | 1398 | valcontents = XSYMBOL (variable)->value; |
c48ead86 | 1399 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1e5f16fa | 1400 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
c48ead86 KH |
1401 | { |
1402 | Lisp_Object tail, elt; | |
1403 | for (tail = buf->local_var_alist; CONSP (tail); tail = XCONS (tail)->cdr) | |
1404 | { | |
1405 | elt = XCONS (tail)->car; | |
d9c2a0f2 | 1406 | if (EQ (variable, XCONS (elt)->car)) |
c48ead86 KH |
1407 | return Qt; |
1408 | } | |
1409 | } | |
1410 | if (BUFFER_OBJFWDP (valcontents)) | |
1411 | { | |
1412 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
1413 | int mask = XINT (*(Lisp_Object *)(offset + (char *)&buffer_local_flags)); | |
1414 | if (mask == -1 || (buf->local_var_flags & mask)) | |
1415 | return Qt; | |
1416 | } | |
1417 | return Qnil; | |
62476adc | 1418 | } |
f4f04cee RS |
1419 | |
1420 | DEFUN ("local-variable-if-set-p", Flocal_variable_if_set_p, Slocal_variable_if_set_p, | |
1421 | 1, 2, 0, | |
1422 | "Non-nil if VARIABLE will be local in buffer BUFFER if it is set there.\n\ | |
1423 | BUFFER defaults to the current buffer.") | |
d9c2a0f2 EN |
1424 | (variable, buffer) |
1425 | register Lisp_Object variable, buffer; | |
f4f04cee RS |
1426 | { |
1427 | Lisp_Object valcontents; | |
1428 | register struct buffer *buf; | |
1429 | ||
1430 | if (NILP (buffer)) | |
1431 | buf = current_buffer; | |
1432 | else | |
1433 | { | |
1434 | CHECK_BUFFER (buffer, 0); | |
1435 | buf = XBUFFER (buffer); | |
1436 | } | |
1437 | ||
d9c2a0f2 | 1438 | CHECK_SYMBOL (variable, 0); |
f4f04cee | 1439 | |
d9c2a0f2 | 1440 | valcontents = XSYMBOL (variable)->value; |
f4f04cee RS |
1441 | |
1442 | /* This means that make-variable-buffer-local was done. */ | |
1443 | if (BUFFER_LOCAL_VALUEP (valcontents)) | |
1444 | return Qt; | |
1445 | /* All these slots become local if they are set. */ | |
1446 | if (BUFFER_OBJFWDP (valcontents)) | |
1447 | return Qt; | |
1448 | if (SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
1449 | { | |
1450 | Lisp_Object tail, elt; | |
1451 | for (tail = buf->local_var_alist; CONSP (tail); tail = XCONS (tail)->cdr) | |
1452 | { | |
1453 | elt = XCONS (tail)->car; | |
d9c2a0f2 | 1454 | if (EQ (variable, XCONS (elt)->car)) |
f4f04cee RS |
1455 | return Qt; |
1456 | } | |
1457 | } | |
1458 | return Qnil; | |
1459 | } | |
7921925c | 1460 | \f |
ffd56f97 JB |
1461 | /* Find the function at the end of a chain of symbol function indirections. */ |
1462 | ||
1463 | /* If OBJECT is a symbol, find the end of its function chain and | |
1464 | return the value found there. If OBJECT is not a symbol, just | |
1465 | return it. If there is a cycle in the function chain, signal a | |
1466 | cyclic-function-indirection error. | |
1467 | ||
1468 | This is like Findirect_function, except that it doesn't signal an | |
1469 | error if the chain ends up unbound. */ | |
1470 | Lisp_Object | |
a2932990 | 1471 | indirect_function (object) |
62476adc | 1472 | register Lisp_Object object; |
ffd56f97 | 1473 | { |
eb8c3be9 | 1474 | Lisp_Object tortoise, hare; |
ffd56f97 | 1475 | |
eb8c3be9 | 1476 | hare = tortoise = object; |
ffd56f97 JB |
1477 | |
1478 | for (;;) | |
1479 | { | |
e9ebc175 | 1480 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
1481 | break; |
1482 | hare = XSYMBOL (hare)->function; | |
e9ebc175 | 1483 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
1484 | break; |
1485 | hare = XSYMBOL (hare)->function; | |
1486 | ||
eb8c3be9 | 1487 | tortoise = XSYMBOL (tortoise)->function; |
ffd56f97 | 1488 | |
eb8c3be9 | 1489 | if (EQ (hare, tortoise)) |
ffd56f97 JB |
1490 | Fsignal (Qcyclic_function_indirection, Fcons (object, Qnil)); |
1491 | } | |
1492 | ||
1493 | return hare; | |
1494 | } | |
1495 | ||
1496 | DEFUN ("indirect-function", Findirect_function, Sindirect_function, 1, 1, 0, | |
1497 | "Return the function at the end of OBJECT's function chain.\n\ | |
1498 | If OBJECT is a symbol, follow all function indirections and return the final\n\ | |
1499 | function binding.\n\ | |
1500 | If OBJECT is not a symbol, just return it.\n\ | |
1501 | Signal a void-function error if the final symbol is unbound.\n\ | |
1502 | Signal a cyclic-function-indirection error if there is a loop in the\n\ | |
1503 | function chain of symbols.") | |
1504 | (object) | |
1505 | register Lisp_Object object; | |
1506 | { | |
1507 | Lisp_Object result; | |
1508 | ||
1509 | result = indirect_function (object); | |
1510 | ||
1511 | if (EQ (result, Qunbound)) | |
1512 | return Fsignal (Qvoid_function, Fcons (object, Qnil)); | |
1513 | return result; | |
1514 | } | |
1515 | \f | |
7921925c JB |
1516 | /* Extract and set vector and string elements */ |
1517 | ||
1518 | DEFUN ("aref", Faref, Saref, 2, 2, 0, | |
d9c2a0f2 | 1519 | "Return the element of ARRAY at index IDX.\n\ |
4d276982 | 1520 | ARRAY may be a vector, a string, a char-table, a bool-vector,\n\ |
d9c2a0f2 | 1521 | or a byte-code object. IDX starts at 0.") |
7921925c JB |
1522 | (array, idx) |
1523 | register Lisp_Object array; | |
1524 | Lisp_Object idx; | |
1525 | { | |
1526 | register int idxval; | |
1527 | ||
1528 | CHECK_NUMBER (idx, 1); | |
1529 | idxval = XINT (idx); | |
e9ebc175 | 1530 | if (STRINGP (array)) |
7921925c JB |
1531 | { |
1532 | Lisp_Object val; | |
c24e4efe KH |
1533 | if (idxval < 0 || idxval >= XSTRING (array)->size) |
1534 | args_out_of_range (array, idx); | |
1b42cf2e | 1535 | XSETFASTINT (val, (unsigned char) XSTRING (array)->data[idxval]); |
7921925c JB |
1536 | return val; |
1537 | } | |
4d276982 RS |
1538 | else if (BOOL_VECTOR_P (array)) |
1539 | { | |
1540 | int val; | |
4d276982 RS |
1541 | |
1542 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
1543 | args_out_of_range (array, idx); | |
1544 | ||
68be917d KH |
1545 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BITS_PER_CHAR]; |
1546 | return (val & (1 << (idxval % BITS_PER_CHAR)) ? Qt : Qnil); | |
4d276982 RS |
1547 | } |
1548 | else if (CHAR_TABLE_P (array)) | |
1549 | { | |
1550 | Lisp_Object val; | |
1551 | ||
1552 | if (idxval < 0) | |
1553 | args_out_of_range (array, idx); | |
1554 | #if 1 | |
1555 | if ((unsigned) idxval >= CHAR_TABLE_ORDINARY_SLOTS) | |
1556 | args_out_of_range (array, idx); | |
1557 | return val = XCHAR_TABLE (array)->contents[idxval]; | |
1558 | #else /* 0 */ | |
1559 | if ((unsigned) idxval < CHAR_TABLE_ORDINARY_SLOTS) | |
1560 | val = XCHAR_TABLE (array)->data[idxval]; | |
1561 | else | |
1562 | { | |
1563 | int charset; | |
1564 | unsigned char c1, c2; | |
1565 | Lisp_Object val, temp; | |
1566 | ||
1567 | BREAKUP_NON_ASCII_CHAR (idxval, charset, c1, c2); | |
1568 | ||
1569 | try_parent_char_table: | |
1570 | val = XCHAR_TABLE (array)->contents[charset]; | |
1571 | if (c1 == 0 || !CHAR_TABLE_P (val)) | |
1572 | return val; | |
1573 | ||
1574 | temp = XCHAR_TABLE (val)->contents[c1]; | |
1575 | if (NILP (temp)) | |
1576 | val = XCHAR_TABLE (val)->defalt; | |
1577 | else | |
1578 | val = temp; | |
1579 | ||
1580 | if (NILP (val) && !NILP (XCHAR_TABLE (array)->parent)) | |
1581 | { | |
1582 | array = XCHAR_TABLE (array)->parent; | |
1583 | goto try_parent_char_table; | |
1584 | ||
1585 | } | |
1586 | ||
1587 | if (c2 == 0 || !CHAR_TABLE_P (val)) | |
1588 | return val; | |
1589 | ||
1590 | temp = XCHAR_TABLE (val)->contents[c2]; | |
1591 | if (NILP (temp)) | |
1592 | val = XCHAR_TABLE (val)->defalt; | |
1593 | else | |
1594 | val = temp; | |
1595 | ||
1596 | if (NILP (val) && !NILP (XCHAR_TABLE (array)->parent)) | |
1597 | { | |
1598 | array = XCHAR_TABLE (array)->parent; | |
1599 | goto try_parent_char_table; | |
1600 | } | |
1601 | ||
1602 | return val; | |
1603 | } | |
1604 | #endif /* 0 */ | |
1605 | } | |
7921925c | 1606 | else |
c24e4efe | 1607 | { |
7f358972 RS |
1608 | int size; |
1609 | if (VECTORP (array)) | |
1610 | size = XVECTOR (array)->size; | |
1611 | else if (COMPILEDP (array)) | |
1612 | size = XVECTOR (array)->size & PSEUDOVECTOR_SIZE_MASK; | |
1613 | else | |
1614 | wrong_type_argument (Qarrayp, array); | |
1615 | ||
1616 | if (idxval < 0 || idxval >= size) | |
c24e4efe KH |
1617 | args_out_of_range (array, idx); |
1618 | return XVECTOR (array)->contents[idxval]; | |
1619 | } | |
7921925c JB |
1620 | } |
1621 | ||
1622 | DEFUN ("aset", Faset, Saset, 3, 3, 0, | |
73d40355 RS |
1623 | "Store into the element of ARRAY at index IDX the value NEWELT.\n\ |
1624 | ARRAY may be a vector or a string. IDX starts at 0.") | |
7921925c JB |
1625 | (array, idx, newelt) |
1626 | register Lisp_Object array; | |
1627 | Lisp_Object idx, newelt; | |
1628 | { | |
1629 | register int idxval; | |
1630 | ||
1631 | CHECK_NUMBER (idx, 1); | |
1632 | idxval = XINT (idx); | |
4d276982 RS |
1633 | if (!VECTORP (array) && !STRINGP (array) && !BOOL_VECTOR_P (array) |
1634 | && ! CHAR_TABLE_P (array)) | |
7921925c | 1635 | array = wrong_type_argument (Qarrayp, array); |
7921925c JB |
1636 | CHECK_IMPURE (array); |
1637 | ||
e9ebc175 | 1638 | if (VECTORP (array)) |
c24e4efe KH |
1639 | { |
1640 | if (idxval < 0 || idxval >= XVECTOR (array)->size) | |
1641 | args_out_of_range (array, idx); | |
1642 | XVECTOR (array)->contents[idxval] = newelt; | |
1643 | } | |
4d276982 RS |
1644 | else if (BOOL_VECTOR_P (array)) |
1645 | { | |
1646 | int val; | |
4d276982 RS |
1647 | |
1648 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
1649 | args_out_of_range (array, idx); | |
1650 | ||
68be917d | 1651 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BITS_PER_CHAR]; |
4d276982 RS |
1652 | |
1653 | if (! NILP (newelt)) | |
68be917d | 1654 | val |= 1 << (idxval % BITS_PER_CHAR); |
4d276982 | 1655 | else |
68be917d KH |
1656 | val &= ~(1 << (idxval % BITS_PER_CHAR)); |
1657 | XBOOL_VECTOR (array)->data[idxval / BITS_PER_CHAR] = val; | |
4d276982 RS |
1658 | } |
1659 | else if (CHAR_TABLE_P (array)) | |
1660 | { | |
1661 | Lisp_Object val; | |
1662 | ||
1663 | if (idxval < 0) | |
1664 | args_out_of_range (array, idx); | |
1665 | #if 1 | |
1666 | if (idxval >= CHAR_TABLE_ORDINARY_SLOTS) | |
1667 | args_out_of_range (array, idx); | |
1668 | XCHAR_TABLE (array)->contents[idxval] = newelt; | |
1669 | return newelt; | |
1670 | #else /* 0 */ | |
1671 | if (idxval < CHAR_TABLE_ORDINARY_SLOTS) | |
1672 | val = XCHAR_TABLE (array)->contents[idxval]; | |
1673 | else | |
1674 | { | |
1675 | int charset; | |
1676 | unsigned char c1, c2; | |
1677 | Lisp_Object val, val2; | |
1678 | ||
1679 | BREAKUP_NON_ASCII_CHAR (idxval, charset, c1, c2); | |
1680 | ||
1681 | if (c1 == 0) | |
1682 | return XCHAR_TABLE (array)->contents[charset] = newelt; | |
1683 | ||
1684 | val = XCHAR_TABLE (array)->contents[charset]; | |
1685 | if (!CHAR_TABLE_P (val)) | |
1686 | XCHAR_TABLE (array)->contents[charset] | |
1687 | = val = Fmake_char_table (Qnil); | |
1688 | ||
1689 | if (c2 == 0) | |
1690 | return XCHAR_TABLE (val)->contents[c1] = newelt; | |
1691 | ||
1692 | val2 = XCHAR_TABLE (val)->contents[c2]; | |
1693 | if (!CHAR_TABLE_P (val2)) | |
1694 | XCHAR_TABLE (val)->contents[charset] | |
1695 | = val2 = Fmake_char_table (Qnil); | |
1696 | ||
1697 | return XCHAR_TABLE (val2)->contents[c2] = newelt; | |
1698 | } | |
1699 | #endif /* 0 */ | |
1700 | } | |
7921925c JB |
1701 | else |
1702 | { | |
c24e4efe KH |
1703 | if (idxval < 0 || idxval >= XSTRING (array)->size) |
1704 | args_out_of_range (array, idx); | |
7921925c JB |
1705 | CHECK_NUMBER (newelt, 2); |
1706 | XSTRING (array)->data[idxval] = XINT (newelt); | |
1707 | } | |
1708 | ||
1709 | return newelt; | |
1710 | } | |
7921925c JB |
1711 | \f |
1712 | /* Arithmetic functions */ | |
1713 | ||
1714 | enum comparison { equal, notequal, less, grtr, less_or_equal, grtr_or_equal }; | |
1715 | ||
1716 | Lisp_Object | |
1717 | arithcompare (num1, num2, comparison) | |
1718 | Lisp_Object num1, num2; | |
1719 | enum comparison comparison; | |
1720 | { | |
1721 | double f1, f2; | |
1722 | int floatp = 0; | |
1723 | ||
1724 | #ifdef LISP_FLOAT_TYPE | |
1725 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1, 0); | |
1726 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2, 0); | |
1727 | ||
e9ebc175 | 1728 | if (FLOATP (num1) || FLOATP (num2)) |
7921925c JB |
1729 | { |
1730 | floatp = 1; | |
e9ebc175 KH |
1731 | f1 = (FLOATP (num1)) ? XFLOAT (num1)->data : XINT (num1); |
1732 | f2 = (FLOATP (num2)) ? XFLOAT (num2)->data : XINT (num2); | |
7921925c JB |
1733 | } |
1734 | #else | |
1735 | CHECK_NUMBER_COERCE_MARKER (num1, 0); | |
1736 | CHECK_NUMBER_COERCE_MARKER (num2, 0); | |
1737 | #endif /* LISP_FLOAT_TYPE */ | |
1738 | ||
1739 | switch (comparison) | |
1740 | { | |
1741 | case equal: | |
1742 | if (floatp ? f1 == f2 : XINT (num1) == XINT (num2)) | |
1743 | return Qt; | |
1744 | return Qnil; | |
1745 | ||
1746 | case notequal: | |
1747 | if (floatp ? f1 != f2 : XINT (num1) != XINT (num2)) | |
1748 | return Qt; | |
1749 | return Qnil; | |
1750 | ||
1751 | case less: | |
1752 | if (floatp ? f1 < f2 : XINT (num1) < XINT (num2)) | |
1753 | return Qt; | |
1754 | return Qnil; | |
1755 | ||
1756 | case less_or_equal: | |
1757 | if (floatp ? f1 <= f2 : XINT (num1) <= XINT (num2)) | |
1758 | return Qt; | |
1759 | return Qnil; | |
1760 | ||
1761 | case grtr: | |
1762 | if (floatp ? f1 > f2 : XINT (num1) > XINT (num2)) | |
1763 | return Qt; | |
1764 | return Qnil; | |
1765 | ||
1766 | case grtr_or_equal: | |
1767 | if (floatp ? f1 >= f2 : XINT (num1) >= XINT (num2)) | |
1768 | return Qt; | |
1769 | return Qnil; | |
25e40a4b JB |
1770 | |
1771 | default: | |
1772 | abort (); | |
7921925c JB |
1773 | } |
1774 | } | |
1775 | ||
1776 | DEFUN ("=", Feqlsign, Seqlsign, 2, 2, 0, | |
1777 | "T if two args, both numbers or markers, are equal.") | |
1778 | (num1, num2) | |
1779 | register Lisp_Object num1, num2; | |
1780 | { | |
1781 | return arithcompare (num1, num2, equal); | |
1782 | } | |
1783 | ||
1784 | DEFUN ("<", Flss, Slss, 2, 2, 0, | |
1785 | "T if first arg is less than second arg. Both must be numbers or markers.") | |
1786 | (num1, num2) | |
1787 | register Lisp_Object num1, num2; | |
1788 | { | |
1789 | return arithcompare (num1, num2, less); | |
1790 | } | |
1791 | ||
1792 | DEFUN (">", Fgtr, Sgtr, 2, 2, 0, | |
1793 | "T if first arg is greater than second arg. Both must be numbers or markers.") | |
1794 | (num1, num2) | |
1795 | register Lisp_Object num1, num2; | |
1796 | { | |
1797 | return arithcompare (num1, num2, grtr); | |
1798 | } | |
1799 | ||
1800 | DEFUN ("<=", Fleq, Sleq, 2, 2, 0, | |
1801 | "T if first arg is less than or equal to second arg.\n\ | |
1802 | Both must be numbers or markers.") | |
1803 | (num1, num2) | |
1804 | register Lisp_Object num1, num2; | |
1805 | { | |
1806 | return arithcompare (num1, num2, less_or_equal); | |
1807 | } | |
1808 | ||
1809 | DEFUN (">=", Fgeq, Sgeq, 2, 2, 0, | |
1810 | "T if first arg is greater than or equal to second arg.\n\ | |
1811 | Both must be numbers or markers.") | |
1812 | (num1, num2) | |
1813 | register Lisp_Object num1, num2; | |
1814 | { | |
1815 | return arithcompare (num1, num2, grtr_or_equal); | |
1816 | } | |
1817 | ||
1818 | DEFUN ("/=", Fneq, Sneq, 2, 2, 0, | |
1819 | "T if first arg is not equal to second arg. Both must be numbers or markers.") | |
1820 | (num1, num2) | |
1821 | register Lisp_Object num1, num2; | |
1822 | { | |
1823 | return arithcompare (num1, num2, notequal); | |
1824 | } | |
1825 | ||
1826 | DEFUN ("zerop", Fzerop, Szerop, 1, 1, 0, "T if NUMBER is zero.") | |
d9c2a0f2 EN |
1827 | (number) |
1828 | register Lisp_Object number; | |
7921925c JB |
1829 | { |
1830 | #ifdef LISP_FLOAT_TYPE | |
d9c2a0f2 | 1831 | CHECK_NUMBER_OR_FLOAT (number, 0); |
7921925c | 1832 | |
d9c2a0f2 | 1833 | if (FLOATP (number)) |
7921925c | 1834 | { |
d9c2a0f2 | 1835 | if (XFLOAT(number)->data == 0.0) |
7921925c JB |
1836 | return Qt; |
1837 | return Qnil; | |
1838 | } | |
1839 | #else | |
d9c2a0f2 | 1840 | CHECK_NUMBER (number, 0); |
7921925c JB |
1841 | #endif /* LISP_FLOAT_TYPE */ |
1842 | ||
d9c2a0f2 | 1843 | if (!XINT (number)) |
7921925c JB |
1844 | return Qt; |
1845 | return Qnil; | |
1846 | } | |
1847 | \f | |
34f4f6c6 | 1848 | /* Convert between long values and pairs of Lisp integers. */ |
51cf3e31 JB |
1849 | |
1850 | Lisp_Object | |
1851 | long_to_cons (i) | |
1852 | unsigned long i; | |
1853 | { | |
1854 | unsigned int top = i >> 16; | |
1855 | unsigned int bot = i & 0xFFFF; | |
1856 | if (top == 0) | |
1857 | return make_number (bot); | |
b42cfa11 | 1858 | if (top == (unsigned long)-1 >> 16) |
51cf3e31 JB |
1859 | return Fcons (make_number (-1), make_number (bot)); |
1860 | return Fcons (make_number (top), make_number (bot)); | |
1861 | } | |
1862 | ||
1863 | unsigned long | |
1864 | cons_to_long (c) | |
1865 | Lisp_Object c; | |
1866 | { | |
878a80cc | 1867 | Lisp_Object top, bot; |
51cf3e31 JB |
1868 | if (INTEGERP (c)) |
1869 | return XINT (c); | |
1870 | top = XCONS (c)->car; | |
1871 | bot = XCONS (c)->cdr; | |
1872 | if (CONSP (bot)) | |
1873 | bot = XCONS (bot)->car; | |
1874 | return ((XINT (top) << 16) | XINT (bot)); | |
1875 | } | |
1876 | \f | |
f2980264 | 1877 | DEFUN ("number-to-string", Fnumber_to_string, Snumber_to_string, 1, 1, 0, |
d9c2a0f2 | 1878 | "Convert NUMBER to a string by printing it in decimal.\n\ |
25e40a4b | 1879 | Uses a minus sign if negative.\n\ |
d9c2a0f2 EN |
1880 | NUMBER may be an integer or a floating point number.") |
1881 | (number) | |
1882 | Lisp_Object number; | |
7921925c | 1883 | { |
6030ce64 | 1884 | char buffer[VALBITS]; |
7921925c JB |
1885 | |
1886 | #ifndef LISP_FLOAT_TYPE | |
d9c2a0f2 | 1887 | CHECK_NUMBER (number, 0); |
7921925c | 1888 | #else |
d9c2a0f2 | 1889 | CHECK_NUMBER_OR_FLOAT (number, 0); |
7921925c | 1890 | |
d9c2a0f2 | 1891 | if (FLOATP (number)) |
7921925c JB |
1892 | { |
1893 | char pigbuf[350]; /* see comments in float_to_string */ | |
1894 | ||
d9c2a0f2 | 1895 | float_to_string (pigbuf, XFLOAT(number)->data); |
7403b5c8 | 1896 | return build_string (pigbuf); |
7921925c JB |
1897 | } |
1898 | #endif /* LISP_FLOAT_TYPE */ | |
1899 | ||
e6c82a8d | 1900 | if (sizeof (int) == sizeof (EMACS_INT)) |
d9c2a0f2 | 1901 | sprintf (buffer, "%d", XINT (number)); |
e6c82a8d | 1902 | else if (sizeof (long) == sizeof (EMACS_INT)) |
d9c2a0f2 | 1903 | sprintf (buffer, "%ld", XINT (number)); |
e6c82a8d RS |
1904 | else |
1905 | abort (); | |
7921925c JB |
1906 | return build_string (buffer); |
1907 | } | |
1908 | ||
25e40a4b JB |
1909 | DEFUN ("string-to-number", Fstring_to_number, Sstring_to_number, 1, 1, 0, |
1910 | "Convert STRING to a number by parsing it as a decimal number.\n\ | |
1c1c17eb RS |
1911 | This parses both integers and floating point numbers.\n\ |
1912 | It ignores leading spaces and tabs.") | |
d9c2a0f2 EN |
1913 | (string) |
1914 | register Lisp_Object string; | |
7921925c | 1915 | { |
e6c82a8d | 1916 | Lisp_Object value; |
0a3e4d65 | 1917 | unsigned char *p; |
25e40a4b | 1918 | |
d9c2a0f2 | 1919 | CHECK_STRING (string, 0); |
7921925c | 1920 | |
d9c2a0f2 | 1921 | p = XSTRING (string)->data; |
25e40a4b JB |
1922 | |
1923 | /* Skip any whitespace at the front of the number. Some versions of | |
1924 | atoi do this anyway, so we might as well make Emacs lisp consistent. */ | |
0a3e4d65 | 1925 | while (*p == ' ' || *p == '\t') |
25e40a4b JB |
1926 | p++; |
1927 | ||
7921925c | 1928 | #ifdef LISP_FLOAT_TYPE |
25e40a4b JB |
1929 | if (isfloat_string (p)) |
1930 | return make_float (atof (p)); | |
7921925c JB |
1931 | #endif /* LISP_FLOAT_TYPE */ |
1932 | ||
e6c82a8d RS |
1933 | if (sizeof (int) == sizeof (EMACS_INT)) |
1934 | XSETINT (value, atoi (p)); | |
1935 | else if (sizeof (long) == sizeof (EMACS_INT)) | |
1936 | XSETINT (value, atol (p)); | |
1937 | else | |
1938 | abort (); | |
1939 | return value; | |
7921925c | 1940 | } |
7403b5c8 | 1941 | \f |
7921925c JB |
1942 | enum arithop |
1943 | { Aadd, Asub, Amult, Adiv, Alogand, Alogior, Alogxor, Amax, Amin }; | |
1944 | ||
b06faa91 JB |
1945 | extern Lisp_Object float_arith_driver (); |
1946 | ||
7921925c | 1947 | Lisp_Object |
87fbf902 | 1948 | arith_driver (code, nargs, args) |
7921925c JB |
1949 | enum arithop code; |
1950 | int nargs; | |
1951 | register Lisp_Object *args; | |
1952 | { | |
1953 | register Lisp_Object val; | |
1954 | register int argnum; | |
5260234d RS |
1955 | register EMACS_INT accum; |
1956 | register EMACS_INT next; | |
7921925c | 1957 | |
0220c518 | 1958 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
1959 | { |
1960 | case Alogior: | |
1961 | case Alogxor: | |
1962 | case Aadd: | |
1963 | case Asub: | |
1964 | accum = 0; break; | |
1965 | case Amult: | |
1966 | accum = 1; break; | |
1967 | case Alogand: | |
1968 | accum = -1; break; | |
1969 | } | |
1970 | ||
1971 | for (argnum = 0; argnum < nargs; argnum++) | |
1972 | { | |
1973 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ | |
1974 | #ifdef LISP_FLOAT_TYPE | |
1975 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val, argnum); | |
1976 | ||
e9ebc175 | 1977 | if (FLOATP (val)) /* time to do serious math */ |
7921925c JB |
1978 | return (float_arith_driver ((double) accum, argnum, code, |
1979 | nargs, args)); | |
1980 | #else | |
1981 | CHECK_NUMBER_COERCE_MARKER (val, argnum); | |
1982 | #endif /* LISP_FLOAT_TYPE */ | |
1983 | args[argnum] = val; /* runs into a compiler bug. */ | |
1984 | next = XINT (args[argnum]); | |
0220c518 | 1985 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
1986 | { |
1987 | case Aadd: accum += next; break; | |
1988 | case Asub: | |
1989 | if (!argnum && nargs != 1) | |
1990 | next = - next; | |
1991 | accum -= next; | |
1992 | break; | |
1993 | case Amult: accum *= next; break; | |
1994 | case Adiv: | |
1995 | if (!argnum) accum = next; | |
87fbf902 RS |
1996 | else |
1997 | { | |
1998 | if (next == 0) | |
1999 | Fsignal (Qarith_error, Qnil); | |
2000 | accum /= next; | |
2001 | } | |
7921925c JB |
2002 | break; |
2003 | case Alogand: accum &= next; break; | |
2004 | case Alogior: accum |= next; break; | |
2005 | case Alogxor: accum ^= next; break; | |
2006 | case Amax: if (!argnum || next > accum) accum = next; break; | |
2007 | case Amin: if (!argnum || next < accum) accum = next; break; | |
2008 | } | |
2009 | } | |
2010 | ||
f187f1f7 | 2011 | XSETINT (val, accum); |
7921925c JB |
2012 | return val; |
2013 | } | |
2014 | ||
2015 | #ifdef LISP_FLOAT_TYPE | |
1a2f2d33 KH |
2016 | |
2017 | #undef isnan | |
2018 | #define isnan(x) ((x) != (x)) | |
2019 | ||
7921925c JB |
2020 | Lisp_Object |
2021 | float_arith_driver (accum, argnum, code, nargs, args) | |
2022 | double accum; | |
2023 | register int argnum; | |
2024 | enum arithop code; | |
2025 | int nargs; | |
2026 | register Lisp_Object *args; | |
2027 | { | |
2028 | register Lisp_Object val; | |
2029 | double next; | |
7403b5c8 | 2030 | |
7921925c JB |
2031 | for (; argnum < nargs; argnum++) |
2032 | { | |
2033 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ | |
2034 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val, argnum); | |
2035 | ||
e9ebc175 | 2036 | if (FLOATP (val)) |
7921925c JB |
2037 | { |
2038 | next = XFLOAT (val)->data; | |
2039 | } | |
2040 | else | |
2041 | { | |
2042 | args[argnum] = val; /* runs into a compiler bug. */ | |
2043 | next = XINT (args[argnum]); | |
2044 | } | |
0220c518 | 2045 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2046 | { |
2047 | case Aadd: | |
2048 | accum += next; | |
2049 | break; | |
2050 | case Asub: | |
2051 | if (!argnum && nargs != 1) | |
2052 | next = - next; | |
2053 | accum -= next; | |
2054 | break; | |
2055 | case Amult: | |
2056 | accum *= next; | |
2057 | break; | |
2058 | case Adiv: | |
2059 | if (!argnum) | |
2060 | accum = next; | |
2061 | else | |
87fbf902 RS |
2062 | { |
2063 | if (next == 0) | |
2064 | Fsignal (Qarith_error, Qnil); | |
2065 | accum /= next; | |
2066 | } | |
7921925c JB |
2067 | break; |
2068 | case Alogand: | |
2069 | case Alogior: | |
2070 | case Alogxor: | |
2071 | return wrong_type_argument (Qinteger_or_marker_p, val); | |
2072 | case Amax: | |
1a2f2d33 | 2073 | if (!argnum || isnan (next) || next > accum) |
7921925c JB |
2074 | accum = next; |
2075 | break; | |
2076 | case Amin: | |
1a2f2d33 | 2077 | if (!argnum || isnan (next) || next < accum) |
7921925c JB |
2078 | accum = next; |
2079 | break; | |
2080 | } | |
2081 | } | |
2082 | ||
2083 | return make_float (accum); | |
2084 | } | |
2085 | #endif /* LISP_FLOAT_TYPE */ | |
2086 | ||
2087 | DEFUN ("+", Fplus, Splus, 0, MANY, 0, | |
2088 | "Return sum of any number of arguments, which are numbers or markers.") | |
2089 | (nargs, args) | |
2090 | int nargs; | |
2091 | Lisp_Object *args; | |
2092 | { | |
2093 | return arith_driver (Aadd, nargs, args); | |
2094 | } | |
2095 | ||
2096 | DEFUN ("-", Fminus, Sminus, 0, MANY, 0, | |
2097 | "Negate number or subtract numbers or markers.\n\ | |
2098 | With one arg, negates it. With more than one arg,\n\ | |
2099 | subtracts all but the first from the first.") | |
2100 | (nargs, args) | |
2101 | int nargs; | |
2102 | Lisp_Object *args; | |
2103 | { | |
2104 | return arith_driver (Asub, nargs, args); | |
2105 | } | |
2106 | ||
2107 | DEFUN ("*", Ftimes, Stimes, 0, MANY, 0, | |
2108 | "Returns product of any number of arguments, which are numbers or markers.") | |
2109 | (nargs, args) | |
2110 | int nargs; | |
2111 | Lisp_Object *args; | |
2112 | { | |
2113 | return arith_driver (Amult, nargs, args); | |
2114 | } | |
2115 | ||
2116 | DEFUN ("/", Fquo, Squo, 2, MANY, 0, | |
2117 | "Returns first argument divided by all the remaining arguments.\n\ | |
2118 | The arguments must be numbers or markers.") | |
2119 | (nargs, args) | |
2120 | int nargs; | |
2121 | Lisp_Object *args; | |
2122 | { | |
2123 | return arith_driver (Adiv, nargs, args); | |
2124 | } | |
2125 | ||
2126 | DEFUN ("%", Frem, Srem, 2, 2, 0, | |
d9c2a0f2 | 2127 | "Returns remainder of X divided by Y.\n\ |
aa29f9b9 | 2128 | Both must be integers or markers.") |
d9c2a0f2 EN |
2129 | (x, y) |
2130 | register Lisp_Object x, y; | |
7921925c JB |
2131 | { |
2132 | Lisp_Object val; | |
2133 | ||
d9c2a0f2 EN |
2134 | CHECK_NUMBER_COERCE_MARKER (x, 0); |
2135 | CHECK_NUMBER_COERCE_MARKER (y, 1); | |
7921925c | 2136 | |
d9c2a0f2 | 2137 | if (XFASTINT (y) == 0) |
87fbf902 RS |
2138 | Fsignal (Qarith_error, Qnil); |
2139 | ||
d9c2a0f2 | 2140 | XSETINT (val, XINT (x) % XINT (y)); |
7921925c JB |
2141 | return val; |
2142 | } | |
2143 | ||
1d66a5fa KH |
2144 | #ifndef HAVE_FMOD |
2145 | double | |
2146 | fmod (f1, f2) | |
2147 | double f1, f2; | |
2148 | { | |
fa43b1e8 KH |
2149 | if (f2 < 0.0) |
2150 | f2 = -f2; | |
1d66a5fa | 2151 | return (f1 - f2 * floor (f1/f2)); |
1d66a5fa KH |
2152 | } |
2153 | #endif /* ! HAVE_FMOD */ | |
2154 | ||
44fa9da5 PE |
2155 | DEFUN ("mod", Fmod, Smod, 2, 2, 0, |
2156 | "Returns X modulo Y.\n\ | |
2157 | The result falls between zero (inclusive) and Y (exclusive).\n\ | |
2158 | Both X and Y must be numbers or markers.") | |
d9c2a0f2 EN |
2159 | (x, y) |
2160 | register Lisp_Object x, y; | |
44fa9da5 PE |
2161 | { |
2162 | Lisp_Object val; | |
5260234d | 2163 | EMACS_INT i1, i2; |
44fa9da5 PE |
2164 | |
2165 | #ifdef LISP_FLOAT_TYPE | |
d9c2a0f2 EN |
2166 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (x, 0); |
2167 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (y, 1); | |
44fa9da5 | 2168 | |
d9c2a0f2 | 2169 | if (FLOATP (x) || FLOATP (y)) |
44fa9da5 PE |
2170 | { |
2171 | double f1, f2; | |
2172 | ||
d9c2a0f2 EN |
2173 | f1 = FLOATP (x) ? XFLOAT (x)->data : XINT (x); |
2174 | f2 = FLOATP (y) ? XFLOAT (y)->data : XINT (y); | |
44fa9da5 PE |
2175 | if (f2 == 0) |
2176 | Fsignal (Qarith_error, Qnil); | |
2177 | ||
44fa9da5 | 2178 | f1 = fmod (f1, f2); |
44fa9da5 | 2179 | /* If the "remainder" comes out with the wrong sign, fix it. */ |
e856a264 | 2180 | if (f2 < 0 ? f1 > 0 : f1 < 0) |
44fa9da5 PE |
2181 | f1 += f2; |
2182 | return (make_float (f1)); | |
2183 | } | |
2184 | #else /* not LISP_FLOAT_TYPE */ | |
d9c2a0f2 EN |
2185 | CHECK_NUMBER_COERCE_MARKER (x, 0); |
2186 | CHECK_NUMBER_COERCE_MARKER (y, 1); | |
44fa9da5 PE |
2187 | #endif /* not LISP_FLOAT_TYPE */ |
2188 | ||
d9c2a0f2 EN |
2189 | i1 = XINT (x); |
2190 | i2 = XINT (y); | |
44fa9da5 PE |
2191 | |
2192 | if (i2 == 0) | |
2193 | Fsignal (Qarith_error, Qnil); | |
7403b5c8 | 2194 | |
44fa9da5 PE |
2195 | i1 %= i2; |
2196 | ||
2197 | /* If the "remainder" comes out with the wrong sign, fix it. */ | |
04f7ec69 | 2198 | if (i2 < 0 ? i1 > 0 : i1 < 0) |
44fa9da5 PE |
2199 | i1 += i2; |
2200 | ||
f187f1f7 | 2201 | XSETINT (val, i1); |
44fa9da5 PE |
2202 | return val; |
2203 | } | |
2204 | ||
7921925c JB |
2205 | DEFUN ("max", Fmax, Smax, 1, MANY, 0, |
2206 | "Return largest of all the arguments (which must be numbers or markers).\n\ | |
2207 | The value is always a number; markers are converted to numbers.") | |
2208 | (nargs, args) | |
2209 | int nargs; | |
2210 | Lisp_Object *args; | |
2211 | { | |
2212 | return arith_driver (Amax, nargs, args); | |
2213 | } | |
2214 | ||
2215 | DEFUN ("min", Fmin, Smin, 1, MANY, 0, | |
2216 | "Return smallest of all the arguments (which must be numbers or markers).\n\ | |
2217 | The value is always a number; markers are converted to numbers.") | |
2218 | (nargs, args) | |
2219 | int nargs; | |
2220 | Lisp_Object *args; | |
2221 | { | |
2222 | return arith_driver (Amin, nargs, args); | |
2223 | } | |
2224 | ||
2225 | DEFUN ("logand", Flogand, Slogand, 0, MANY, 0, | |
2226 | "Return bitwise-and of all the arguments.\n\ | |
2227 | Arguments may be integers, or markers converted to integers.") | |
2228 | (nargs, args) | |
2229 | int nargs; | |
2230 | Lisp_Object *args; | |
2231 | { | |
2232 | return arith_driver (Alogand, nargs, args); | |
2233 | } | |
2234 | ||
2235 | DEFUN ("logior", Flogior, Slogior, 0, MANY, 0, | |
2236 | "Return bitwise-or of all the arguments.\n\ | |
2237 | Arguments may be integers, or markers converted to integers.") | |
2238 | (nargs, args) | |
2239 | int nargs; | |
2240 | Lisp_Object *args; | |
2241 | { | |
2242 | return arith_driver (Alogior, nargs, args); | |
2243 | } | |
2244 | ||
2245 | DEFUN ("logxor", Flogxor, Slogxor, 0, MANY, 0, | |
2246 | "Return bitwise-exclusive-or of all the arguments.\n\ | |
2247 | Arguments may be integers, or markers converted to integers.") | |
2248 | (nargs, args) | |
2249 | int nargs; | |
2250 | Lisp_Object *args; | |
2251 | { | |
2252 | return arith_driver (Alogxor, nargs, args); | |
2253 | } | |
2254 | ||
2255 | DEFUN ("ash", Fash, Sash, 2, 2, 0, | |
2256 | "Return VALUE with its bits shifted left by COUNT.\n\ | |
2257 | If COUNT is negative, shifting is actually to the right.\n\ | |
2258 | In this case, the sign bit is duplicated.") | |
3b9f7964 RS |
2259 | (value, count) |
2260 | register Lisp_Object value, count; | |
7921925c JB |
2261 | { |
2262 | register Lisp_Object val; | |
2263 | ||
3d9652eb RS |
2264 | CHECK_NUMBER (value, 0); |
2265 | CHECK_NUMBER (count, 1); | |
7921925c | 2266 | |
3d9652eb RS |
2267 | if (XINT (count) > 0) |
2268 | XSETINT (val, XINT (value) << XFASTINT (count)); | |
7921925c | 2269 | else |
3d9652eb | 2270 | XSETINT (val, XINT (value) >> -XINT (count)); |
7921925c JB |
2271 | return val; |
2272 | } | |
2273 | ||
2274 | DEFUN ("lsh", Flsh, Slsh, 2, 2, 0, | |
2275 | "Return VALUE with its bits shifted left by COUNT.\n\ | |
2276 | If COUNT is negative, shifting is actually to the right.\n\ | |
2277 | In this case, zeros are shifted in on the left.") | |
3d9652eb RS |
2278 | (value, count) |
2279 | register Lisp_Object value, count; | |
7921925c JB |
2280 | { |
2281 | register Lisp_Object val; | |
2282 | ||
3d9652eb RS |
2283 | CHECK_NUMBER (value, 0); |
2284 | CHECK_NUMBER (count, 1); | |
7921925c | 2285 | |
3d9652eb RS |
2286 | if (XINT (count) > 0) |
2287 | XSETINT (val, (EMACS_UINT) XUINT (value) << XFASTINT (count)); | |
7921925c | 2288 | else |
3d9652eb | 2289 | XSETINT (val, (EMACS_UINT) XUINT (value) >> -XINT (count)); |
7921925c JB |
2290 | return val; |
2291 | } | |
2292 | ||
2293 | DEFUN ("1+", Fadd1, Sadd1, 1, 1, 0, | |
2294 | "Return NUMBER plus one. NUMBER may be a number or a marker.\n\ | |
2295 | Markers are converted to integers.") | |
d9c2a0f2 EN |
2296 | (number) |
2297 | register Lisp_Object number; | |
7921925c JB |
2298 | { |
2299 | #ifdef LISP_FLOAT_TYPE | |
d9c2a0f2 | 2300 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number, 0); |
7921925c | 2301 | |
d9c2a0f2 EN |
2302 | if (FLOATP (number)) |
2303 | return (make_float (1.0 + XFLOAT (number)->data)); | |
7921925c | 2304 | #else |
d9c2a0f2 | 2305 | CHECK_NUMBER_COERCE_MARKER (number, 0); |
7921925c JB |
2306 | #endif /* LISP_FLOAT_TYPE */ |
2307 | ||
d9c2a0f2 EN |
2308 | XSETINT (number, XINT (number) + 1); |
2309 | return number; | |
7921925c JB |
2310 | } |
2311 | ||
2312 | DEFUN ("1-", Fsub1, Ssub1, 1, 1, 0, | |
2313 | "Return NUMBER minus one. NUMBER may be a number or a marker.\n\ | |
2314 | Markers are converted to integers.") | |
d9c2a0f2 EN |
2315 | (number) |
2316 | register Lisp_Object number; | |
7921925c JB |
2317 | { |
2318 | #ifdef LISP_FLOAT_TYPE | |
d9c2a0f2 | 2319 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number, 0); |
7921925c | 2320 | |
d9c2a0f2 EN |
2321 | if (FLOATP (number)) |
2322 | return (make_float (-1.0 + XFLOAT (number)->data)); | |
7921925c | 2323 | #else |
d9c2a0f2 | 2324 | CHECK_NUMBER_COERCE_MARKER (number, 0); |
7921925c JB |
2325 | #endif /* LISP_FLOAT_TYPE */ |
2326 | ||
d9c2a0f2 EN |
2327 | XSETINT (number, XINT (number) - 1); |
2328 | return number; | |
7921925c JB |
2329 | } |
2330 | ||
2331 | DEFUN ("lognot", Flognot, Slognot, 1, 1, 0, | |
d9c2a0f2 EN |
2332 | "Return the bitwise complement of NUMBER. NUMBER must be an integer.") |
2333 | (number) | |
2334 | register Lisp_Object number; | |
7921925c | 2335 | { |
d9c2a0f2 | 2336 | CHECK_NUMBER (number, 0); |
53924017 | 2337 | XSETINT (number, ~XINT (number)); |
d9c2a0f2 | 2338 | return number; |
7921925c JB |
2339 | } |
2340 | \f | |
2341 | void | |
2342 | syms_of_data () | |
2343 | { | |
6315e761 RS |
2344 | Lisp_Object error_tail, arith_tail; |
2345 | ||
7921925c JB |
2346 | Qquote = intern ("quote"); |
2347 | Qlambda = intern ("lambda"); | |
2348 | Qsubr = intern ("subr"); | |
2349 | Qerror_conditions = intern ("error-conditions"); | |
2350 | Qerror_message = intern ("error-message"); | |
2351 | Qtop_level = intern ("top-level"); | |
2352 | ||
2353 | Qerror = intern ("error"); | |
2354 | Qquit = intern ("quit"); | |
2355 | Qwrong_type_argument = intern ("wrong-type-argument"); | |
2356 | Qargs_out_of_range = intern ("args-out-of-range"); | |
2357 | Qvoid_function = intern ("void-function"); | |
ffd56f97 | 2358 | Qcyclic_function_indirection = intern ("cyclic-function-indirection"); |
7921925c JB |
2359 | Qvoid_variable = intern ("void-variable"); |
2360 | Qsetting_constant = intern ("setting-constant"); | |
2361 | Qinvalid_read_syntax = intern ("invalid-read-syntax"); | |
2362 | ||
2363 | Qinvalid_function = intern ("invalid-function"); | |
2364 | Qwrong_number_of_arguments = intern ("wrong-number-of-arguments"); | |
2365 | Qno_catch = intern ("no-catch"); | |
2366 | Qend_of_file = intern ("end-of-file"); | |
2367 | Qarith_error = intern ("arith-error"); | |
2368 | Qbeginning_of_buffer = intern ("beginning-of-buffer"); | |
2369 | Qend_of_buffer = intern ("end-of-buffer"); | |
2370 | Qbuffer_read_only = intern ("buffer-read-only"); | |
3b8819d6 | 2371 | Qmark_inactive = intern ("mark-inactive"); |
7921925c JB |
2372 | |
2373 | Qlistp = intern ("listp"); | |
2374 | Qconsp = intern ("consp"); | |
2375 | Qsymbolp = intern ("symbolp"); | |
2376 | Qintegerp = intern ("integerp"); | |
2377 | Qnatnump = intern ("natnump"); | |
8e86942b | 2378 | Qwholenump = intern ("wholenump"); |
7921925c JB |
2379 | Qstringp = intern ("stringp"); |
2380 | Qarrayp = intern ("arrayp"); | |
2381 | Qsequencep = intern ("sequencep"); | |
2382 | Qbufferp = intern ("bufferp"); | |
2383 | Qvectorp = intern ("vectorp"); | |
2384 | Qchar_or_string_p = intern ("char-or-string-p"); | |
2385 | Qmarkerp = intern ("markerp"); | |
07bd8472 | 2386 | Qbuffer_or_string_p = intern ("buffer-or-string-p"); |
7921925c JB |
2387 | Qinteger_or_marker_p = intern ("integer-or-marker-p"); |
2388 | Qboundp = intern ("boundp"); | |
2389 | Qfboundp = intern ("fboundp"); | |
2390 | ||
2391 | #ifdef LISP_FLOAT_TYPE | |
2392 | Qfloatp = intern ("floatp"); | |
2393 | Qnumberp = intern ("numberp"); | |
2394 | Qnumber_or_marker_p = intern ("number-or-marker-p"); | |
2395 | #endif /* LISP_FLOAT_TYPE */ | |
2396 | ||
4d276982 | 2397 | Qchar_table_p = intern ("char-table-p"); |
7f0edce7 | 2398 | Qvector_or_char_table_p = intern ("vector-or-char-table-p"); |
4d276982 | 2399 | |
7921925c JB |
2400 | Qcdr = intern ("cdr"); |
2401 | ||
f845f2c9 | 2402 | /* Handle automatic advice activation */ |
ab297811 RS |
2403 | Qad_advice_info = intern ("ad-advice-info"); |
2404 | Qad_activate = intern ("ad-activate"); | |
f845f2c9 | 2405 | |
6315e761 RS |
2406 | error_tail = Fcons (Qerror, Qnil); |
2407 | ||
7921925c JB |
2408 | /* ERROR is used as a signaler for random errors for which nothing else is right */ |
2409 | ||
2410 | Fput (Qerror, Qerror_conditions, | |
6315e761 | 2411 | error_tail); |
7921925c JB |
2412 | Fput (Qerror, Qerror_message, |
2413 | build_string ("error")); | |
2414 | ||
2415 | Fput (Qquit, Qerror_conditions, | |
2416 | Fcons (Qquit, Qnil)); | |
2417 | Fput (Qquit, Qerror_message, | |
2418 | build_string ("Quit")); | |
2419 | ||
2420 | Fput (Qwrong_type_argument, Qerror_conditions, | |
6315e761 | 2421 | Fcons (Qwrong_type_argument, error_tail)); |
7921925c JB |
2422 | Fput (Qwrong_type_argument, Qerror_message, |
2423 | build_string ("Wrong type argument")); | |
2424 | ||
2425 | Fput (Qargs_out_of_range, Qerror_conditions, | |
6315e761 | 2426 | Fcons (Qargs_out_of_range, error_tail)); |
7921925c JB |
2427 | Fput (Qargs_out_of_range, Qerror_message, |
2428 | build_string ("Args out of range")); | |
2429 | ||
2430 | Fput (Qvoid_function, Qerror_conditions, | |
6315e761 | 2431 | Fcons (Qvoid_function, error_tail)); |
7921925c JB |
2432 | Fput (Qvoid_function, Qerror_message, |
2433 | build_string ("Symbol's function definition is void")); | |
2434 | ||
ffd56f97 | 2435 | Fput (Qcyclic_function_indirection, Qerror_conditions, |
6315e761 | 2436 | Fcons (Qcyclic_function_indirection, error_tail)); |
ffd56f97 JB |
2437 | Fput (Qcyclic_function_indirection, Qerror_message, |
2438 | build_string ("Symbol's chain of function indirections contains a loop")); | |
2439 | ||
7921925c | 2440 | Fput (Qvoid_variable, Qerror_conditions, |
6315e761 | 2441 | Fcons (Qvoid_variable, error_tail)); |
7921925c JB |
2442 | Fput (Qvoid_variable, Qerror_message, |
2443 | build_string ("Symbol's value as variable is void")); | |
2444 | ||
2445 | Fput (Qsetting_constant, Qerror_conditions, | |
6315e761 | 2446 | Fcons (Qsetting_constant, error_tail)); |
7921925c JB |
2447 | Fput (Qsetting_constant, Qerror_message, |
2448 | build_string ("Attempt to set a constant symbol")); | |
2449 | ||
2450 | Fput (Qinvalid_read_syntax, Qerror_conditions, | |
6315e761 | 2451 | Fcons (Qinvalid_read_syntax, error_tail)); |
7921925c JB |
2452 | Fput (Qinvalid_read_syntax, Qerror_message, |
2453 | build_string ("Invalid read syntax")); | |
2454 | ||
2455 | Fput (Qinvalid_function, Qerror_conditions, | |
6315e761 | 2456 | Fcons (Qinvalid_function, error_tail)); |
7921925c JB |
2457 | Fput (Qinvalid_function, Qerror_message, |
2458 | build_string ("Invalid function")); | |
2459 | ||
2460 | Fput (Qwrong_number_of_arguments, Qerror_conditions, | |
6315e761 | 2461 | Fcons (Qwrong_number_of_arguments, error_tail)); |
7921925c JB |
2462 | Fput (Qwrong_number_of_arguments, Qerror_message, |
2463 | build_string ("Wrong number of arguments")); | |
2464 | ||
2465 | Fput (Qno_catch, Qerror_conditions, | |
6315e761 | 2466 | Fcons (Qno_catch, error_tail)); |
7921925c JB |
2467 | Fput (Qno_catch, Qerror_message, |
2468 | build_string ("No catch for tag")); | |
2469 | ||
2470 | Fput (Qend_of_file, Qerror_conditions, | |
6315e761 | 2471 | Fcons (Qend_of_file, error_tail)); |
7921925c JB |
2472 | Fput (Qend_of_file, Qerror_message, |
2473 | build_string ("End of file during parsing")); | |
2474 | ||
6315e761 | 2475 | arith_tail = Fcons (Qarith_error, error_tail); |
7921925c | 2476 | Fput (Qarith_error, Qerror_conditions, |
6315e761 | 2477 | arith_tail); |
7921925c JB |
2478 | Fput (Qarith_error, Qerror_message, |
2479 | build_string ("Arithmetic error")); | |
2480 | ||
2481 | Fput (Qbeginning_of_buffer, Qerror_conditions, | |
6315e761 | 2482 | Fcons (Qbeginning_of_buffer, error_tail)); |
7921925c JB |
2483 | Fput (Qbeginning_of_buffer, Qerror_message, |
2484 | build_string ("Beginning of buffer")); | |
2485 | ||
2486 | Fput (Qend_of_buffer, Qerror_conditions, | |
6315e761 | 2487 | Fcons (Qend_of_buffer, error_tail)); |
7921925c JB |
2488 | Fput (Qend_of_buffer, Qerror_message, |
2489 | build_string ("End of buffer")); | |
2490 | ||
2491 | Fput (Qbuffer_read_only, Qerror_conditions, | |
6315e761 | 2492 | Fcons (Qbuffer_read_only, error_tail)); |
7921925c JB |
2493 | Fput (Qbuffer_read_only, Qerror_message, |
2494 | build_string ("Buffer is read-only")); | |
2495 | ||
6315e761 RS |
2496 | #ifdef LISP_FLOAT_TYPE |
2497 | Qrange_error = intern ("range-error"); | |
2498 | Qdomain_error = intern ("domain-error"); | |
2499 | Qsingularity_error = intern ("singularity-error"); | |
2500 | Qoverflow_error = intern ("overflow-error"); | |
2501 | Qunderflow_error = intern ("underflow-error"); | |
2502 | ||
2503 | Fput (Qdomain_error, Qerror_conditions, | |
2504 | Fcons (Qdomain_error, arith_tail)); | |
2505 | Fput (Qdomain_error, Qerror_message, | |
2506 | build_string ("Arithmetic domain error")); | |
2507 | ||
2508 | Fput (Qrange_error, Qerror_conditions, | |
2509 | Fcons (Qrange_error, arith_tail)); | |
2510 | Fput (Qrange_error, Qerror_message, | |
2511 | build_string ("Arithmetic range error")); | |
2512 | ||
2513 | Fput (Qsingularity_error, Qerror_conditions, | |
2514 | Fcons (Qsingularity_error, Fcons (Qdomain_error, arith_tail))); | |
2515 | Fput (Qsingularity_error, Qerror_message, | |
2516 | build_string ("Arithmetic singularity error")); | |
2517 | ||
2518 | Fput (Qoverflow_error, Qerror_conditions, | |
2519 | Fcons (Qoverflow_error, Fcons (Qdomain_error, arith_tail))); | |
2520 | Fput (Qoverflow_error, Qerror_message, | |
2521 | build_string ("Arithmetic overflow error")); | |
2522 | ||
2523 | Fput (Qunderflow_error, Qerror_conditions, | |
2524 | Fcons (Qunderflow_error, Fcons (Qdomain_error, arith_tail))); | |
2525 | Fput (Qunderflow_error, Qerror_message, | |
2526 | build_string ("Arithmetic underflow error")); | |
2527 | ||
2528 | staticpro (&Qrange_error); | |
2529 | staticpro (&Qdomain_error); | |
2530 | staticpro (&Qsingularity_error); | |
2531 | staticpro (&Qoverflow_error); | |
2532 | staticpro (&Qunderflow_error); | |
2533 | #endif /* LISP_FLOAT_TYPE */ | |
2534 | ||
7921925c JB |
2535 | staticpro (&Qnil); |
2536 | staticpro (&Qt); | |
2537 | staticpro (&Qquote); | |
2538 | staticpro (&Qlambda); | |
2539 | staticpro (&Qsubr); | |
2540 | staticpro (&Qunbound); | |
2541 | staticpro (&Qerror_conditions); | |
2542 | staticpro (&Qerror_message); | |
2543 | staticpro (&Qtop_level); | |
2544 | ||
2545 | staticpro (&Qerror); | |
2546 | staticpro (&Qquit); | |
2547 | staticpro (&Qwrong_type_argument); | |
2548 | staticpro (&Qargs_out_of_range); | |
2549 | staticpro (&Qvoid_function); | |
ffd56f97 | 2550 | staticpro (&Qcyclic_function_indirection); |
7921925c JB |
2551 | staticpro (&Qvoid_variable); |
2552 | staticpro (&Qsetting_constant); | |
2553 | staticpro (&Qinvalid_read_syntax); | |
2554 | staticpro (&Qwrong_number_of_arguments); | |
2555 | staticpro (&Qinvalid_function); | |
2556 | staticpro (&Qno_catch); | |
2557 | staticpro (&Qend_of_file); | |
2558 | staticpro (&Qarith_error); | |
2559 | staticpro (&Qbeginning_of_buffer); | |
2560 | staticpro (&Qend_of_buffer); | |
2561 | staticpro (&Qbuffer_read_only); | |
638b77e6 | 2562 | staticpro (&Qmark_inactive); |
7921925c JB |
2563 | |
2564 | staticpro (&Qlistp); | |
2565 | staticpro (&Qconsp); | |
2566 | staticpro (&Qsymbolp); | |
2567 | staticpro (&Qintegerp); | |
2568 | staticpro (&Qnatnump); | |
8e86942b | 2569 | staticpro (&Qwholenump); |
7921925c JB |
2570 | staticpro (&Qstringp); |
2571 | staticpro (&Qarrayp); | |
2572 | staticpro (&Qsequencep); | |
2573 | staticpro (&Qbufferp); | |
2574 | staticpro (&Qvectorp); | |
2575 | staticpro (&Qchar_or_string_p); | |
2576 | staticpro (&Qmarkerp); | |
07bd8472 | 2577 | staticpro (&Qbuffer_or_string_p); |
7921925c JB |
2578 | staticpro (&Qinteger_or_marker_p); |
2579 | #ifdef LISP_FLOAT_TYPE | |
2580 | staticpro (&Qfloatp); | |
464f8898 RS |
2581 | staticpro (&Qnumberp); |
2582 | staticpro (&Qnumber_or_marker_p); | |
7921925c | 2583 | #endif /* LISP_FLOAT_TYPE */ |
4d276982 | 2584 | staticpro (&Qchar_table_p); |
7f0edce7 | 2585 | staticpro (&Qvector_or_char_table_p); |
7921925c JB |
2586 | |
2587 | staticpro (&Qboundp); | |
2588 | staticpro (&Qfboundp); | |
2589 | staticpro (&Qcdr); | |
ab297811 RS |
2590 | staticpro (&Qad_advice_info); |
2591 | staticpro (&Qad_activate); | |
7921925c | 2592 | |
39bcc759 RS |
2593 | /* Types that type-of returns. */ |
2594 | Qinteger = intern ("integer"); | |
2595 | Qsymbol = intern ("symbol"); | |
2596 | Qstring = intern ("string"); | |
2597 | Qcons = intern ("cons"); | |
2598 | Qmarker = intern ("marker"); | |
2599 | Qoverlay = intern ("overlay"); | |
2600 | Qfloat = intern ("float"); | |
2601 | Qwindow_configuration = intern ("window-configuration"); | |
2602 | Qprocess = intern ("process"); | |
2603 | Qwindow = intern ("window"); | |
2604 | /* Qsubr = intern ("subr"); */ | |
2605 | Qcompiled_function = intern ("compiled-function"); | |
2606 | Qbuffer = intern ("buffer"); | |
2607 | Qframe = intern ("frame"); | |
2608 | Qvector = intern ("vector"); | |
fc67d5be KH |
2609 | Qchar_table = intern ("char-table"); |
2610 | Qbool_vector = intern ("bool-vector"); | |
39bcc759 RS |
2611 | |
2612 | staticpro (&Qinteger); | |
2613 | staticpro (&Qsymbol); | |
2614 | staticpro (&Qstring); | |
2615 | staticpro (&Qcons); | |
2616 | staticpro (&Qmarker); | |
2617 | staticpro (&Qoverlay); | |
2618 | staticpro (&Qfloat); | |
2619 | staticpro (&Qwindow_configuration); | |
2620 | staticpro (&Qprocess); | |
2621 | staticpro (&Qwindow); | |
2622 | /* staticpro (&Qsubr); */ | |
2623 | staticpro (&Qcompiled_function); | |
2624 | staticpro (&Qbuffer); | |
2625 | staticpro (&Qframe); | |
2626 | staticpro (&Qvector); | |
fc67d5be KH |
2627 | staticpro (&Qchar_table); |
2628 | staticpro (&Qbool_vector); | |
39bcc759 | 2629 | |
7921925c JB |
2630 | defsubr (&Seq); |
2631 | defsubr (&Snull); | |
39bcc759 | 2632 | defsubr (&Stype_of); |
7921925c JB |
2633 | defsubr (&Slistp); |
2634 | defsubr (&Snlistp); | |
2635 | defsubr (&Sconsp); | |
2636 | defsubr (&Satom); | |
2637 | defsubr (&Sintegerp); | |
464f8898 | 2638 | defsubr (&Sinteger_or_marker_p); |
7921925c JB |
2639 | defsubr (&Snumberp); |
2640 | defsubr (&Snumber_or_marker_p); | |
464f8898 RS |
2641 | #ifdef LISP_FLOAT_TYPE |
2642 | defsubr (&Sfloatp); | |
7921925c JB |
2643 | #endif /* LISP_FLOAT_TYPE */ |
2644 | defsubr (&Snatnump); | |
2645 | defsubr (&Ssymbolp); | |
2646 | defsubr (&Sstringp); | |
2647 | defsubr (&Svectorp); | |
4d276982 | 2648 | defsubr (&Schar_table_p); |
7f0edce7 | 2649 | defsubr (&Svector_or_char_table_p); |
4d276982 | 2650 | defsubr (&Sbool_vector_p); |
7921925c JB |
2651 | defsubr (&Sarrayp); |
2652 | defsubr (&Ssequencep); | |
2653 | defsubr (&Sbufferp); | |
2654 | defsubr (&Smarkerp); | |
7921925c | 2655 | defsubr (&Ssubrp); |
dbc4e1c1 | 2656 | defsubr (&Sbyte_code_function_p); |
7921925c JB |
2657 | defsubr (&Schar_or_string_p); |
2658 | defsubr (&Scar); | |
2659 | defsubr (&Scdr); | |
2660 | defsubr (&Scar_safe); | |
2661 | defsubr (&Scdr_safe); | |
2662 | defsubr (&Ssetcar); | |
2663 | defsubr (&Ssetcdr); | |
2664 | defsubr (&Ssymbol_function); | |
ffd56f97 | 2665 | defsubr (&Sindirect_function); |
7921925c JB |
2666 | defsubr (&Ssymbol_plist); |
2667 | defsubr (&Ssymbol_name); | |
2668 | defsubr (&Smakunbound); | |
2669 | defsubr (&Sfmakunbound); | |
2670 | defsubr (&Sboundp); | |
2671 | defsubr (&Sfboundp); | |
2672 | defsubr (&Sfset); | |
80df38a2 | 2673 | defsubr (&Sdefalias); |
d9bcdb34 | 2674 | defsubr (&Sdefine_function); |
7921925c JB |
2675 | defsubr (&Ssetplist); |
2676 | defsubr (&Ssymbol_value); | |
2677 | defsubr (&Sset); | |
2678 | defsubr (&Sdefault_boundp); | |
2679 | defsubr (&Sdefault_value); | |
2680 | defsubr (&Sset_default); | |
2681 | defsubr (&Ssetq_default); | |
2682 | defsubr (&Smake_variable_buffer_local); | |
2683 | defsubr (&Smake_local_variable); | |
2684 | defsubr (&Skill_local_variable); | |
62476adc | 2685 | defsubr (&Slocal_variable_p); |
f4f04cee | 2686 | defsubr (&Slocal_variable_if_set_p); |
7921925c JB |
2687 | defsubr (&Saref); |
2688 | defsubr (&Saset); | |
f2980264 | 2689 | defsubr (&Snumber_to_string); |
25e40a4b | 2690 | defsubr (&Sstring_to_number); |
7921925c JB |
2691 | defsubr (&Seqlsign); |
2692 | defsubr (&Slss); | |
2693 | defsubr (&Sgtr); | |
2694 | defsubr (&Sleq); | |
2695 | defsubr (&Sgeq); | |
2696 | defsubr (&Sneq); | |
2697 | defsubr (&Szerop); | |
2698 | defsubr (&Splus); | |
2699 | defsubr (&Sminus); | |
2700 | defsubr (&Stimes); | |
2701 | defsubr (&Squo); | |
2702 | defsubr (&Srem); | |
44fa9da5 | 2703 | defsubr (&Smod); |
7921925c JB |
2704 | defsubr (&Smax); |
2705 | defsubr (&Smin); | |
2706 | defsubr (&Slogand); | |
2707 | defsubr (&Slogior); | |
2708 | defsubr (&Slogxor); | |
2709 | defsubr (&Slsh); | |
2710 | defsubr (&Sash); | |
2711 | defsubr (&Sadd1); | |
2712 | defsubr (&Ssub1); | |
2713 | defsubr (&Slognot); | |
8e86942b | 2714 | |
c80bd143 | 2715 | XSYMBOL (Qwholenump)->function = XSYMBOL (Qnatnump)->function; |
7921925c JB |
2716 | } |
2717 | ||
a33ef3ab | 2718 | SIGTYPE |
7921925c JB |
2719 | arith_error (signo) |
2720 | int signo; | |
2721 | { | |
2722 | #ifdef USG | |
2723 | /* USG systems forget handlers when they are used; | |
2724 | must reestablish each time */ | |
2725 | signal (signo, arith_error); | |
2726 | #endif /* USG */ | |
2727 | #ifdef VMS | |
2728 | /* VMS systems are like USG. */ | |
2729 | signal (signo, arith_error); | |
2730 | #endif /* VMS */ | |
2731 | #ifdef BSD4_1 | |
2732 | sigrelse (SIGFPE); | |
2733 | #else /* not BSD4_1 */ | |
e065a56e | 2734 | sigsetmask (SIGEMPTYMASK); |
7921925c JB |
2735 | #endif /* not BSD4_1 */ |
2736 | ||
2737 | Fsignal (Qarith_error, Qnil); | |
2738 | } | |
2739 | ||
2740 | init_data () | |
2741 | { | |
2742 | /* Don't do this if just dumping out. | |
2743 | We don't want to call `signal' in this case | |
2744 | so that we don't have trouble with dumping | |
2745 | signal-delivering routines in an inconsistent state. */ | |
2746 | #ifndef CANNOT_DUMP | |
2747 | if (!initialized) | |
2748 | return; | |
2749 | #endif /* CANNOT_DUMP */ | |
2750 | signal (SIGFPE, arith_error); | |
7403b5c8 | 2751 | |
7921925c JB |
2752 | #ifdef uts |
2753 | signal (SIGEMT, arith_error); | |
2754 | #endif /* uts */ | |
2755 | } |