Commit | Line | Data |
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7921925c | 1 | /* Primitive operations on Lisp data types for GNU Emacs Lisp interpreter. |
c6c5df7f | 2 | Copyright (C) 1985, 1986, 1988, 1993 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 | |
8 | the Free Software Foundation; either version 1, or (at your option) | |
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 | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
20 | ||
21 | #include <signal.h> | |
22 | ||
18160b98 | 23 | #include <config.h> |
7921925c | 24 | #include "lisp.h" |
29eab336 | 25 | #include "puresize.h" |
7921925c JB |
26 | |
27 | #ifndef standalone | |
28 | #include "buffer.h" | |
29 | #endif | |
30 | ||
a44804c2 | 31 | #include "syssignal.h" |
fb8e9847 | 32 | |
aaf45c7b RS |
33 | #if 0 /* That is untrue--XINT is used below, and it uses INTBITS. |
34 | What in the world is values.h, anyway? */ | |
35 | #ifdef MSDOS | |
36 | /* These are redefined in values.h and not used here */ | |
37 | #undef INTBITS | |
38 | #undef LONGBITS | |
39 | #undef SHORTBITS | |
40 | #endif | |
41 | #endif | |
42 | ||
7921925c | 43 | #ifdef LISP_FLOAT_TYPE |
defa77b5 | 44 | |
93b91208 JB |
45 | #ifdef STDC_HEADERS |
46 | #include <stdlib.h> | |
47 | #endif | |
defa77b5 RS |
48 | |
49 | /* Work around a problem that happens because math.h on hpux 7 | |
50 | defines two static variables--which, in Emacs, are not really static, | |
51 | because `static' is defined as nothing. The problem is that they are | |
52 | here, in floatfns.c, and in lread.c. | |
53 | These macros prevent the name conflict. */ | |
54 | #if defined (HPUX) && !defined (HPUX8) | |
55 | #define _MAXLDBL data_c_maxldbl | |
56 | #define _NMAXLDBL data_c_nmaxldbl | |
57 | #endif | |
58 | ||
7921925c JB |
59 | #include <math.h> |
60 | #endif /* LISP_FLOAT_TYPE */ | |
61 | ||
024ec58f BF |
62 | #if !defined (atof) |
63 | extern double atof (); | |
64 | #endif /* !atof */ | |
65 | ||
7921925c JB |
66 | Lisp_Object Qnil, Qt, Qquote, Qlambda, Qsubr, Qunbound; |
67 | Lisp_Object Qerror_conditions, Qerror_message, Qtop_level; | |
68 | Lisp_Object Qerror, Qquit, Qwrong_type_argument, Qargs_out_of_range; | |
ffd56f97 | 69 | Lisp_Object Qvoid_variable, Qvoid_function, Qcyclic_function_indirection; |
7921925c JB |
70 | Lisp_Object Qsetting_constant, Qinvalid_read_syntax; |
71 | Lisp_Object Qinvalid_function, Qwrong_number_of_arguments, Qno_catch; | |
3b8819d6 | 72 | Lisp_Object Qend_of_file, Qarith_error, Qmark_inactive; |
7921925c | 73 | Lisp_Object Qbeginning_of_buffer, Qend_of_buffer, Qbuffer_read_only; |
8e86942b | 74 | Lisp_Object Qintegerp, Qnatnump, Qwholenump, Qsymbolp, Qlistp, Qconsp; |
7921925c JB |
75 | Lisp_Object Qstringp, Qarrayp, Qsequencep, Qbufferp; |
76 | Lisp_Object Qchar_or_string_p, Qmarkerp, Qinteger_or_marker_p, Qvectorp; | |
07bd8472 | 77 | Lisp_Object Qbuffer_or_string_p; |
7921925c JB |
78 | Lisp_Object Qboundp, Qfboundp; |
79 | Lisp_Object Qcdr; | |
80 | ||
6315e761 RS |
81 | Lisp_Object Qrange_error, Qdomain_error, Qsingularity_error; |
82 | Lisp_Object Qoverflow_error, Qunderflow_error; | |
83 | ||
7921925c | 84 | #ifdef LISP_FLOAT_TYPE |
464f8898 | 85 | Lisp_Object Qfloatp; |
7921925c JB |
86 | Lisp_Object Qnumberp, Qnumber_or_marker_p; |
87 | #endif | |
88 | ||
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 | { | |
100 | if (XTYPE (value) == Lisp_String && | |
101 | (EQ (predicate, Qintegerp) || EQ (predicate, Qinteger_or_marker_p))) | |
25e40a4b | 102 | return Fstring_to_number (value); |
7921925c | 103 | if (XTYPE (value) == Lisp_Int && EQ (predicate, Qstringp)) |
f2980264 | 104 | return Fnumber_to_string (value); |
7921925c JB |
105 | } |
106 | value = Fsignal (Qwrong_type_argument, Fcons (predicate, Fcons (value, Qnil))); | |
107 | tem = call1 (predicate, value); | |
108 | } | |
a33ef3ab | 109 | while (NILP (tem)); |
7921925c JB |
110 | return value; |
111 | } | |
112 | ||
113 | pure_write_error () | |
114 | { | |
115 | error ("Attempt to modify read-only object"); | |
116 | } | |
117 | ||
118 | void | |
119 | args_out_of_range (a1, a2) | |
120 | Lisp_Object a1, a2; | |
121 | { | |
122 | while (1) | |
123 | Fsignal (Qargs_out_of_range, Fcons (a1, Fcons (a2, Qnil))); | |
124 | } | |
125 | ||
126 | void | |
127 | args_out_of_range_3 (a1, a2, a3) | |
128 | Lisp_Object a1, a2, a3; | |
129 | { | |
130 | while (1) | |
131 | Fsignal (Qargs_out_of_range, Fcons (a1, Fcons (a2, Fcons (a3, Qnil)))); | |
132 | } | |
133 | ||
134 | Lisp_Object | |
135 | make_number (num) | |
136 | int num; | |
137 | { | |
138 | register Lisp_Object val; | |
139 | XSET (val, Lisp_Int, num); | |
140 | return val; | |
141 | } | |
142 | ||
143 | /* On some machines, XINT needs a temporary location. | |
144 | Here it is, in case it is needed. */ | |
145 | ||
146 | int sign_extend_temp; | |
147 | ||
148 | /* On a few machines, XINT can only be done by calling this. */ | |
149 | ||
150 | int | |
151 | sign_extend_lisp_int (num) | |
152 | int num; | |
153 | { | |
154 | if (num & (1 << (VALBITS - 1))) | |
155 | return num | ((-1) << VALBITS); | |
156 | else | |
157 | return num & ((1 << VALBITS) - 1); | |
158 | } | |
159 | \f | |
160 | /* Data type predicates */ | |
161 | ||
162 | DEFUN ("eq", Feq, Seq, 2, 2, 0, | |
163 | "T if the two args are the same Lisp object.") | |
164 | (obj1, obj2) | |
165 | Lisp_Object obj1, obj2; | |
166 | { | |
167 | if (EQ (obj1, obj2)) | |
168 | return Qt; | |
169 | return Qnil; | |
170 | } | |
171 | ||
172 | DEFUN ("null", Fnull, Snull, 1, 1, 0, "T if OBJECT is nil.") | |
173 | (obj) | |
174 | Lisp_Object obj; | |
175 | { | |
a33ef3ab | 176 | if (NILP (obj)) |
7921925c JB |
177 | return Qt; |
178 | return Qnil; | |
179 | } | |
180 | ||
181 | DEFUN ("consp", Fconsp, Sconsp, 1, 1, 0, "T if OBJECT is a cons cell.") | |
182 | (obj) | |
183 | Lisp_Object obj; | |
184 | { | |
185 | if (XTYPE (obj) == Lisp_Cons) | |
186 | return Qt; | |
187 | return Qnil; | |
188 | } | |
189 | ||
190 | DEFUN ("atom", Fatom, Satom, 1, 1, 0, "T if OBJECT is not a cons cell. This includes nil.") | |
191 | (obj) | |
192 | Lisp_Object obj; | |
193 | { | |
194 | if (XTYPE (obj) == Lisp_Cons) | |
195 | return Qnil; | |
196 | return Qt; | |
197 | } | |
198 | ||
199 | DEFUN ("listp", Flistp, Slistp, 1, 1, 0, "T if OBJECT is a list. This includes nil.") | |
200 | (obj) | |
201 | Lisp_Object obj; | |
202 | { | |
a33ef3ab | 203 | if (XTYPE (obj) == Lisp_Cons || NILP (obj)) |
7921925c JB |
204 | return Qt; |
205 | return Qnil; | |
206 | } | |
207 | ||
208 | DEFUN ("nlistp", Fnlistp, Snlistp, 1, 1, 0, "T if OBJECT is not a list. Lists include nil.") | |
209 | (obj) | |
210 | Lisp_Object obj; | |
211 | { | |
a33ef3ab | 212 | if (XTYPE (obj) == Lisp_Cons || NILP (obj)) |
7921925c JB |
213 | return Qnil; |
214 | return Qt; | |
215 | } | |
216 | \f | |
217 | DEFUN ("symbolp", Fsymbolp, Ssymbolp, 1, 1, 0, "T if OBJECT is a symbol.") | |
218 | (obj) | |
219 | Lisp_Object obj; | |
220 | { | |
221 | if (XTYPE (obj) == Lisp_Symbol) | |
222 | return Qt; | |
223 | return Qnil; | |
224 | } | |
225 | ||
226 | DEFUN ("vectorp", Fvectorp, Svectorp, 1, 1, 0, "T if OBJECT is a vector.") | |
227 | (obj) | |
228 | Lisp_Object obj; | |
229 | { | |
230 | if (XTYPE (obj) == Lisp_Vector) | |
231 | return Qt; | |
232 | return Qnil; | |
233 | } | |
234 | ||
235 | DEFUN ("stringp", Fstringp, Sstringp, 1, 1, 0, "T if OBJECT is a string.") | |
236 | (obj) | |
237 | Lisp_Object obj; | |
238 | { | |
239 | if (XTYPE (obj) == Lisp_String) | |
240 | return Qt; | |
241 | return Qnil; | |
242 | } | |
243 | ||
244 | DEFUN ("arrayp", Farrayp, Sarrayp, 1, 1, 0, "T if OBJECT is an array (string or vector).") | |
245 | (obj) | |
246 | Lisp_Object obj; | |
247 | { | |
248 | if (XTYPE (obj) == Lisp_Vector || XTYPE (obj) == Lisp_String) | |
249 | return Qt; | |
250 | return Qnil; | |
251 | } | |
252 | ||
253 | DEFUN ("sequencep", Fsequencep, Ssequencep, 1, 1, 0, | |
254 | "T if OBJECT is a sequence (list or array).") | |
255 | (obj) | |
256 | register Lisp_Object obj; | |
257 | { | |
a33ef3ab | 258 | if (CONSP (obj) || NILP (obj) || |
7921925c JB |
259 | XTYPE (obj) == Lisp_Vector || XTYPE (obj) == Lisp_String) |
260 | return Qt; | |
261 | return Qnil; | |
262 | } | |
263 | ||
264 | DEFUN ("bufferp", Fbufferp, Sbufferp, 1, 1, 0, "T if OBJECT is an editor buffer.") | |
265 | (obj) | |
266 | Lisp_Object obj; | |
267 | { | |
268 | if (XTYPE (obj) == Lisp_Buffer) | |
269 | return Qt; | |
270 | return Qnil; | |
271 | } | |
272 | ||
273 | DEFUN ("markerp", Fmarkerp, Smarkerp, 1, 1, 0, "T if OBJECT is a marker (editor pointer).") | |
274 | (obj) | |
275 | Lisp_Object obj; | |
276 | { | |
277 | if (XTYPE (obj) == Lisp_Marker) | |
278 | return Qt; | |
279 | return Qnil; | |
280 | } | |
281 | ||
7921925c JB |
282 | DEFUN ("subrp", Fsubrp, Ssubrp, 1, 1, 0, "T if OBJECT is a built-in function.") |
283 | (obj) | |
284 | Lisp_Object obj; | |
285 | { | |
286 | if (XTYPE (obj) == Lisp_Subr) | |
287 | return Qt; | |
288 | return Qnil; | |
289 | } | |
290 | ||
dbc4e1c1 JB |
291 | DEFUN ("byte-code-function-p", Fbyte_code_function_p, Sbyte_code_function_p, |
292 | 1, 1, 0, "T if OBJECT is a byte-compiled function object.") | |
7921925c JB |
293 | (obj) |
294 | Lisp_Object obj; | |
295 | { | |
296 | if (XTYPE (obj) == Lisp_Compiled) | |
297 | return Qt; | |
298 | return Qnil; | |
299 | } | |
300 | ||
0321d75c KH |
301 | DEFUN ("char-or-string-p", Fchar_or_string_p, Schar_or_string_p, 1, 1, 0, |
302 | "T if OBJECT is a character (an integer) or a string.") | |
7921925c JB |
303 | (obj) |
304 | register Lisp_Object obj; | |
305 | { | |
306 | if (XTYPE (obj) == Lisp_Int || XTYPE (obj) == Lisp_String) | |
307 | return Qt; | |
308 | return Qnil; | |
309 | } | |
310 | \f | |
0321d75c | 311 | DEFUN ("integerp", Fintegerp, Sintegerp, 1, 1, 0, "T if OBJECT is an integer.") |
7921925c JB |
312 | (obj) |
313 | Lisp_Object obj; | |
314 | { | |
315 | if (XTYPE (obj) == Lisp_Int) | |
316 | return Qt; | |
317 | return Qnil; | |
318 | } | |
319 | ||
464f8898 RS |
320 | DEFUN ("integer-or-marker-p", Finteger_or_marker_p, Sinteger_or_marker_p, 1, 1, 0, |
321 | "T if OBJECT is an integer or a marker (editor pointer).") | |
7921925c | 322 | (obj) |
464f8898 | 323 | register Lisp_Object obj; |
7921925c | 324 | { |
464f8898 | 325 | if (XTYPE (obj) == Lisp_Marker || XTYPE (obj) == Lisp_Int) |
7921925c JB |
326 | return Qt; |
327 | return Qnil; | |
328 | } | |
329 | ||
0321d75c KH |
330 | DEFUN ("natnump", Fnatnump, Snatnump, 1, 1, 0, |
331 | "T if OBJECT is a nonnegative integer.") | |
7921925c JB |
332 | (obj) |
333 | Lisp_Object obj; | |
334 | { | |
464f8898 | 335 | if (XTYPE (obj) == Lisp_Int && XINT (obj) >= 0) |
7921925c JB |
336 | return Qt; |
337 | return Qnil; | |
338 | } | |
339 | ||
340 | DEFUN ("numberp", Fnumberp, Snumberp, 1, 1, 0, | |
341 | "T if OBJECT is a number (floating point or integer).") | |
342 | (obj) | |
343 | Lisp_Object obj; | |
344 | { | |
dbc4e1c1 | 345 | if (NUMBERP (obj)) |
7921925c | 346 | return Qt; |
dbc4e1c1 JB |
347 | else |
348 | return Qnil; | |
7921925c JB |
349 | } |
350 | ||
351 | DEFUN ("number-or-marker-p", Fnumber_or_marker_p, | |
352 | Snumber_or_marker_p, 1, 1, 0, | |
353 | "T if OBJECT is a number or a marker.") | |
354 | (obj) | |
355 | Lisp_Object obj; | |
356 | { | |
dbc4e1c1 | 357 | if (NUMBERP (obj) |
7921925c JB |
358 | || XTYPE (obj) == Lisp_Marker) |
359 | return Qt; | |
360 | return Qnil; | |
361 | } | |
464f8898 RS |
362 | |
363 | #ifdef LISP_FLOAT_TYPE | |
364 | DEFUN ("floatp", Ffloatp, Sfloatp, 1, 1, 0, | |
365 | "T if OBJECT is a floating point number.") | |
366 | (obj) | |
367 | Lisp_Object obj; | |
368 | { | |
369 | if (XTYPE (obj) == Lisp_Float) | |
370 | return Qt; | |
371 | return Qnil; | |
372 | } | |
7921925c JB |
373 | #endif /* LISP_FLOAT_TYPE */ |
374 | \f | |
375 | /* Extract and set components of lists */ | |
376 | ||
377 | DEFUN ("car", Fcar, Scar, 1, 1, 0, | |
378 | "Return the car of CONSCELL. If arg is nil, return nil.\n\ | |
379 | Error if arg is not nil and not a cons cell. See also `car-safe'.") | |
380 | (list) | |
381 | register Lisp_Object list; | |
382 | { | |
383 | while (1) | |
384 | { | |
385 | if (XTYPE (list) == Lisp_Cons) | |
386 | return XCONS (list)->car; | |
387 | else if (EQ (list, Qnil)) | |
388 | return Qnil; | |
389 | else | |
390 | list = wrong_type_argument (Qlistp, list); | |
391 | } | |
392 | } | |
393 | ||
394 | DEFUN ("car-safe", Fcar_safe, Scar_safe, 1, 1, 0, | |
395 | "Return the car of OBJECT if it is a cons cell, or else nil.") | |
396 | (object) | |
397 | Lisp_Object object; | |
398 | { | |
399 | if (XTYPE (object) == Lisp_Cons) | |
400 | return XCONS (object)->car; | |
401 | else | |
402 | return Qnil; | |
403 | } | |
404 | ||
405 | DEFUN ("cdr", Fcdr, Scdr, 1, 1, 0, | |
406 | "Return the cdr of CONSCELL. If arg is nil, return nil.\n\ | |
407 | Error if arg is not nil and not a cons cell. See also `cdr-safe'.") | |
408 | ||
409 | (list) | |
410 | register Lisp_Object list; | |
411 | { | |
412 | while (1) | |
413 | { | |
414 | if (XTYPE (list) == Lisp_Cons) | |
415 | return XCONS (list)->cdr; | |
416 | else if (EQ (list, Qnil)) | |
417 | return Qnil; | |
418 | else | |
419 | list = wrong_type_argument (Qlistp, list); | |
420 | } | |
421 | } | |
422 | ||
423 | DEFUN ("cdr-safe", Fcdr_safe, Scdr_safe, 1, 1, 0, | |
424 | "Return the cdr of OBJECT if it is a cons cell, or else nil.") | |
425 | (object) | |
426 | Lisp_Object object; | |
427 | { | |
428 | if (XTYPE (object) == Lisp_Cons) | |
429 | return XCONS (object)->cdr; | |
430 | else | |
431 | return Qnil; | |
432 | } | |
433 | ||
434 | DEFUN ("setcar", Fsetcar, Ssetcar, 2, 2, 0, | |
435 | "Set the car of CONSCELL to be NEWCAR. Returns NEWCAR.") | |
436 | (cell, newcar) | |
437 | register Lisp_Object cell, newcar; | |
438 | { | |
439 | if (XTYPE (cell) != Lisp_Cons) | |
440 | cell = wrong_type_argument (Qconsp, cell); | |
441 | ||
442 | CHECK_IMPURE (cell); | |
443 | XCONS (cell)->car = newcar; | |
444 | return newcar; | |
445 | } | |
446 | ||
447 | DEFUN ("setcdr", Fsetcdr, Ssetcdr, 2, 2, 0, | |
448 | "Set the cdr of CONSCELL to be NEWCDR. Returns NEWCDR.") | |
449 | (cell, newcdr) | |
450 | register Lisp_Object cell, newcdr; | |
451 | { | |
452 | if (XTYPE (cell) != Lisp_Cons) | |
453 | cell = wrong_type_argument (Qconsp, cell); | |
454 | ||
455 | CHECK_IMPURE (cell); | |
456 | XCONS (cell)->cdr = newcdr; | |
457 | return newcdr; | |
458 | } | |
459 | \f | |
460 | /* Extract and set components of symbols */ | |
461 | ||
462 | DEFUN ("boundp", Fboundp, Sboundp, 1, 1, 0, "T if SYMBOL's value is not void.") | |
463 | (sym) | |
464 | register Lisp_Object sym; | |
465 | { | |
466 | Lisp_Object valcontents; | |
467 | CHECK_SYMBOL (sym, 0); | |
468 | ||
469 | valcontents = XSYMBOL (sym)->value; | |
470 | ||
471 | #ifdef SWITCH_ENUM_BUG | |
472 | switch ((int) XTYPE (valcontents)) | |
473 | #else | |
474 | switch (XTYPE (valcontents)) | |
475 | #endif | |
476 | { | |
477 | case Lisp_Buffer_Local_Value: | |
478 | case Lisp_Some_Buffer_Local_Value: | |
479 | valcontents = swap_in_symval_forwarding (sym, valcontents); | |
480 | } | |
481 | ||
482 | return (XTYPE (valcontents) == Lisp_Void || EQ (valcontents, Qunbound) | |
483 | ? Qnil : Qt); | |
484 | } | |
485 | ||
486 | DEFUN ("fboundp", Ffboundp, Sfboundp, 1, 1, 0, "T if SYMBOL's function definition is not void.") | |
487 | (sym) | |
488 | register Lisp_Object sym; | |
489 | { | |
490 | CHECK_SYMBOL (sym, 0); | |
491 | return (XTYPE (XSYMBOL (sym)->function) == Lisp_Void | |
492 | || EQ (XSYMBOL (sym)->function, Qunbound)) | |
493 | ? Qnil : Qt; | |
494 | } | |
495 | ||
496 | DEFUN ("makunbound", Fmakunbound, Smakunbound, 1, 1, 0, "Make SYMBOL's value be void.") | |
497 | (sym) | |
498 | register Lisp_Object sym; | |
499 | { | |
500 | CHECK_SYMBOL (sym, 0); | |
a33ef3ab | 501 | if (NILP (sym) || EQ (sym, Qt)) |
7921925c JB |
502 | return Fsignal (Qsetting_constant, Fcons (sym, Qnil)); |
503 | Fset (sym, Qunbound); | |
504 | return sym; | |
505 | } | |
506 | ||
507 | DEFUN ("fmakunbound", Ffmakunbound, Sfmakunbound, 1, 1, 0, "Make SYMBOL's function definition be void.") | |
508 | (sym) | |
509 | register Lisp_Object sym; | |
510 | { | |
511 | CHECK_SYMBOL (sym, 0); | |
512 | XSYMBOL (sym)->function = Qunbound; | |
513 | return sym; | |
514 | } | |
515 | ||
516 | DEFUN ("symbol-function", Fsymbol_function, Ssymbol_function, 1, 1, 0, | |
517 | "Return SYMBOL's function definition. Error if that is void.") | |
ffd56f97 JB |
518 | (symbol) |
519 | register Lisp_Object symbol; | |
7921925c | 520 | { |
ffd56f97 JB |
521 | CHECK_SYMBOL (symbol, 0); |
522 | if (EQ (XSYMBOL (symbol)->function, Qunbound)) | |
523 | return Fsignal (Qvoid_function, Fcons (symbol, Qnil)); | |
524 | return XSYMBOL (symbol)->function; | |
7921925c JB |
525 | } |
526 | ||
527 | DEFUN ("symbol-plist", Fsymbol_plist, Ssymbol_plist, 1, 1, 0, "Return SYMBOL's property list.") | |
528 | (sym) | |
529 | register Lisp_Object sym; | |
530 | { | |
531 | CHECK_SYMBOL (sym, 0); | |
532 | return XSYMBOL (sym)->plist; | |
533 | } | |
534 | ||
535 | DEFUN ("symbol-name", Fsymbol_name, Ssymbol_name, 1, 1, 0, "Return SYMBOL's name, a string.") | |
536 | (sym) | |
537 | register Lisp_Object sym; | |
538 | { | |
539 | register Lisp_Object name; | |
540 | ||
541 | CHECK_SYMBOL (sym, 0); | |
542 | XSET (name, Lisp_String, XSYMBOL (sym)->name); | |
543 | return name; | |
544 | } | |
545 | ||
546 | DEFUN ("fset", Ffset, Sfset, 2, 2, 0, | |
547 | "Set SYMBOL's function definition to NEWVAL, and return NEWVAL.") | |
548 | (sym, newdef) | |
549 | register Lisp_Object sym, newdef; | |
550 | { | |
551 | CHECK_SYMBOL (sym, 0); | |
e3fa7dfc | 552 | |
a33ef3ab | 553 | if (!NILP (Vautoload_queue) && !EQ (XSYMBOL (sym)->function, Qunbound)) |
7921925c JB |
554 | Vautoload_queue = Fcons (Fcons (sym, XSYMBOL (sym)->function), |
555 | Vautoload_queue); | |
556 | XSYMBOL (sym)->function = newdef; | |
557 | return newdef; | |
558 | } | |
559 | ||
d9bcdb34 RS |
560 | /* This name should be removed once it is eliminated from elsewhere. */ |
561 | ||
80df38a2 | 562 | DEFUN ("defalias", Fdefalias, Sdefalias, 2, 2, 0, |
fc08c367 RS |
563 | "Set SYMBOL's function definition to NEWVAL, and return NEWVAL.\n\ |
564 | Associates the function with the current load file, if any.") | |
565 | (sym, newdef) | |
566 | register Lisp_Object sym, newdef; | |
567 | { | |
568 | CHECK_SYMBOL (sym, 0); | |
569 | if (!NILP (Vautoload_queue) && !EQ (XSYMBOL (sym)->function, Qunbound)) | |
570 | Vautoload_queue = Fcons (Fcons (sym, XSYMBOL (sym)->function), | |
571 | Vautoload_queue); | |
572 | XSYMBOL (sym)->function = newdef; | |
573 | LOADHIST_ATTACH (sym); | |
574 | return newdef; | |
575 | } | |
576 | ||
d9bcdb34 RS |
577 | DEFUN ("define-function", Fdefine_function, Sdefine_function, 2, 2, 0, |
578 | "Set SYMBOL's function definition to NEWVAL, and return NEWVAL.\n\ | |
579 | Associates the function with the current load file, if any.") | |
580 | (sym, newdef) | |
581 | register Lisp_Object sym, newdef; | |
582 | { | |
583 | CHECK_SYMBOL (sym, 0); | |
584 | if (!NILP (Vautoload_queue) && !EQ (XSYMBOL (sym)->function, Qunbound)) | |
585 | Vautoload_queue = Fcons (Fcons (sym, XSYMBOL (sym)->function), | |
586 | Vautoload_queue); | |
587 | XSYMBOL (sym)->function = newdef; | |
588 | LOADHIST_ATTACH (sym); | |
589 | return newdef; | |
590 | } | |
591 | ||
7921925c JB |
592 | DEFUN ("setplist", Fsetplist, Ssetplist, 2, 2, 0, |
593 | "Set SYMBOL's property list to NEWVAL, and return NEWVAL.") | |
594 | (sym, newplist) | |
595 | register Lisp_Object sym, newplist; | |
596 | { | |
597 | CHECK_SYMBOL (sym, 0); | |
598 | XSYMBOL (sym)->plist = newplist; | |
599 | return newplist; | |
600 | } | |
ffd56f97 | 601 | |
7921925c JB |
602 | \f |
603 | /* Getting and setting values of symbols */ | |
604 | ||
605 | /* Given the raw contents of a symbol value cell, | |
606 | return the Lisp value of the symbol. | |
607 | This does not handle buffer-local variables; use | |
608 | swap_in_symval_forwarding for that. */ | |
609 | ||
610 | Lisp_Object | |
611 | do_symval_forwarding (valcontents) | |
612 | register Lisp_Object valcontents; | |
613 | { | |
614 | register Lisp_Object val; | |
615 | #ifdef SWITCH_ENUM_BUG | |
616 | switch ((int) XTYPE (valcontents)) | |
617 | #else | |
618 | switch (XTYPE (valcontents)) | |
619 | #endif | |
620 | { | |
621 | case Lisp_Intfwd: | |
622 | XSET (val, Lisp_Int, *XINTPTR (valcontents)); | |
623 | return val; | |
624 | ||
625 | case Lisp_Boolfwd: | |
626 | if (*XINTPTR (valcontents)) | |
627 | return Qt; | |
628 | return Qnil; | |
629 | ||
630 | case Lisp_Objfwd: | |
631 | return *XOBJFWD (valcontents); | |
632 | ||
633 | case Lisp_Buffer_Objfwd: | |
634 | return *(Lisp_Object *)(XUINT (valcontents) + (char *)current_buffer); | |
635 | } | |
636 | return valcontents; | |
637 | } | |
638 | ||
639 | /* Store NEWVAL into SYM, where VALCONTENTS is found in the value cell | |
640 | of SYM. If SYM is buffer-local, VALCONTENTS should be the | |
641 | buffer-independent contents of the value cell: forwarded just one | |
642 | step past the buffer-localness. */ | |
643 | ||
644 | void | |
645 | store_symval_forwarding (sym, valcontents, newval) | |
646 | Lisp_Object sym; | |
647 | register Lisp_Object valcontents, newval; | |
648 | { | |
649 | #ifdef SWITCH_ENUM_BUG | |
650 | switch ((int) XTYPE (valcontents)) | |
651 | #else | |
652 | switch (XTYPE (valcontents)) | |
653 | #endif | |
654 | { | |
655 | case Lisp_Intfwd: | |
656 | CHECK_NUMBER (newval, 1); | |
657 | *XINTPTR (valcontents) = XINT (newval); | |
658 | break; | |
659 | ||
660 | case Lisp_Boolfwd: | |
a33ef3ab | 661 | *XINTPTR (valcontents) = NILP(newval) ? 0 : 1; |
7921925c JB |
662 | break; |
663 | ||
664 | case Lisp_Objfwd: | |
665 | *XOBJFWD (valcontents) = newval; | |
666 | break; | |
667 | ||
668 | case Lisp_Buffer_Objfwd: | |
bc540f9f JB |
669 | { |
670 | unsigned int offset = XUINT (valcontents); | |
0671d7c0 | 671 | Lisp_Object type; |
bc540f9f | 672 | |
0671d7c0 | 673 | type = *(Lisp_Object *)(offset + (char *)&buffer_local_types); |
bc540f9f JB |
674 | if (! NILP (type) && ! NILP (newval) |
675 | && XTYPE (newval) != XINT (type)) | |
676 | buffer_slot_type_mismatch (valcontents, newval); | |
677 | ||
678 | *(Lisp_Object *)(XUINT (valcontents) + (char *)current_buffer) | |
679 | = newval; | |
680 | break; | |
681 | } | |
7921925c JB |
682 | |
683 | default: | |
684 | valcontents = XSYMBOL (sym)->value; | |
685 | if (XTYPE (valcontents) == Lisp_Buffer_Local_Value | |
686 | || XTYPE (valcontents) == Lisp_Some_Buffer_Local_Value) | |
687 | XCONS (XSYMBOL (sym)->value)->car = newval; | |
688 | else | |
689 | XSYMBOL (sym)->value = newval; | |
690 | } | |
691 | } | |
692 | ||
693 | /* Set up the buffer-local symbol SYM for validity in the current | |
694 | buffer. VALCONTENTS is the contents of its value cell. | |
695 | Return the value forwarded one step past the buffer-local indicator. */ | |
696 | ||
697 | static Lisp_Object | |
698 | swap_in_symval_forwarding (sym, valcontents) | |
699 | Lisp_Object sym, valcontents; | |
700 | { | |
701 | /* valcontents is a list | |
702 | (REALVALUE BUFFER CURRENT-ALIST-ELEMENT . DEFAULT-VALUE)). | |
703 | ||
704 | CURRENT-ALIST-ELEMENT is a pointer to an element of BUFFER's | |
533984a8 JB |
705 | local_var_alist, that being the element whose car is this |
706 | variable. Or it can be a pointer to the | |
707 | (CURRENT-ALIST-ELEMENT . DEFAULT-VALUE), if BUFFER does not have | |
708 | an element in its alist for this variable. | |
709 | ||
710 | If the current buffer is not BUFFER, we store the current | |
711 | REALVALUE value into CURRENT-ALIST-ELEMENT, then find the | |
712 | appropriate alist element for the buffer now current and set up | |
713 | CURRENT-ALIST-ELEMENT. Then we set REALVALUE out of that | |
714 | element, and store into BUFFER. | |
715 | ||
7921925c JB |
716 | Note that REALVALUE can be a forwarding pointer. */ |
717 | ||
718 | register Lisp_Object tem1; | |
719 | tem1 = XCONS (XCONS (valcontents)->cdr)->car; | |
720 | ||
a33ef3ab | 721 | if (NILP (tem1) || current_buffer != XBUFFER (tem1)) |
7921925c JB |
722 | { |
723 | tem1 = XCONS (XCONS (XCONS (valcontents)->cdr)->cdr)->car; | |
724 | Fsetcdr (tem1, do_symval_forwarding (XCONS (valcontents)->car)); | |
725 | tem1 = assq_no_quit (sym, current_buffer->local_var_alist); | |
a33ef3ab | 726 | if (NILP (tem1)) |
7921925c JB |
727 | tem1 = XCONS (XCONS (valcontents)->cdr)->cdr; |
728 | XCONS (XCONS (XCONS (valcontents)->cdr)->cdr)->car = tem1; | |
729 | XSET (XCONS (XCONS (valcontents)->cdr)->car, Lisp_Buffer, current_buffer); | |
730 | store_symval_forwarding (sym, XCONS (valcontents)->car, Fcdr (tem1)); | |
731 | } | |
732 | return XCONS (valcontents)->car; | |
733 | } | |
734 | \f | |
14e76af9 JB |
735 | /* Find the value of a symbol, returning Qunbound if it's not bound. |
736 | This is helpful for code which just wants to get a variable's value | |
737 | if it has one, without signalling an error. | |
738 | Note that it must not be possible to quit | |
739 | within this function. Great care is required for this. */ | |
7921925c | 740 | |
14e76af9 JB |
741 | Lisp_Object |
742 | find_symbol_value (sym) | |
7921925c JB |
743 | Lisp_Object sym; |
744 | { | |
745 | register Lisp_Object valcontents, tem1; | |
746 | register Lisp_Object val; | |
747 | CHECK_SYMBOL (sym, 0); | |
748 | valcontents = XSYMBOL (sym)->value; | |
749 | ||
750 | retry: | |
751 | #ifdef SWITCH_ENUM_BUG | |
752 | switch ((int) XTYPE (valcontents)) | |
753 | #else | |
754 | switch (XTYPE (valcontents)) | |
755 | #endif | |
756 | { | |
757 | case Lisp_Buffer_Local_Value: | |
758 | case Lisp_Some_Buffer_Local_Value: | |
759 | valcontents = swap_in_symval_forwarding (sym, valcontents); | |
760 | goto retry; | |
761 | ||
762 | case Lisp_Intfwd: | |
763 | XSET (val, Lisp_Int, *XINTPTR (valcontents)); | |
764 | return val; | |
765 | ||
766 | case Lisp_Boolfwd: | |
767 | if (*XINTPTR (valcontents)) | |
768 | return Qt; | |
769 | return Qnil; | |
770 | ||
771 | case Lisp_Objfwd: | |
772 | return *XOBJFWD (valcontents); | |
773 | ||
774 | case Lisp_Buffer_Objfwd: | |
775 | return *(Lisp_Object *)(XUINT (valcontents) + (char *)current_buffer); | |
776 | ||
7921925c | 777 | case Lisp_Void: |
14e76af9 | 778 | return Qunbound; |
7921925c JB |
779 | } |
780 | ||
781 | return valcontents; | |
782 | } | |
783 | ||
14e76af9 JB |
784 | DEFUN ("symbol-value", Fsymbol_value, Ssymbol_value, 1, 1, 0, |
785 | "Return SYMBOL's value. Error if that is void.") | |
786 | (sym) | |
787 | Lisp_Object sym; | |
788 | { | |
0671d7c0 | 789 | Lisp_Object val; |
14e76af9 | 790 | |
0671d7c0 | 791 | val = find_symbol_value (sym); |
14e76af9 JB |
792 | if (EQ (val, Qunbound)) |
793 | return Fsignal (Qvoid_variable, Fcons (sym, Qnil)); | |
794 | else | |
795 | return val; | |
796 | } | |
797 | ||
7921925c JB |
798 | DEFUN ("set", Fset, Sset, 2, 2, 0, |
799 | "Set SYMBOL's value to NEWVAL, and return NEWVAL.") | |
800 | (sym, newval) | |
801 | register Lisp_Object sym, newval; | |
802 | { | |
803 | int voide = (XTYPE (newval) == Lisp_Void || EQ (newval, Qunbound)); | |
804 | ||
805 | #ifndef RTPC_REGISTER_BUG | |
806 | register Lisp_Object valcontents, tem1, current_alist_element; | |
807 | #else /* RTPC_REGISTER_BUG */ | |
808 | register Lisp_Object tem1; | |
809 | Lisp_Object valcontents, current_alist_element; | |
810 | #endif /* RTPC_REGISTER_BUG */ | |
811 | ||
812 | CHECK_SYMBOL (sym, 0); | |
a33ef3ab | 813 | if (NILP (sym) || EQ (sym, Qt)) |
7921925c JB |
814 | return Fsignal (Qsetting_constant, Fcons (sym, Qnil)); |
815 | valcontents = XSYMBOL (sym)->value; | |
816 | ||
817 | if (XTYPE (valcontents) == Lisp_Buffer_Objfwd) | |
818 | { | |
819 | register int idx = XUINT (valcontents); | |
820 | register int mask = *(int *)(idx + (char *) &buffer_local_flags); | |
821 | if (mask > 0) | |
822 | current_buffer->local_var_flags |= mask; | |
823 | } | |
824 | ||
d8cafeb5 JB |
825 | else if (XTYPE (valcontents) == Lisp_Buffer_Local_Value |
826 | || XTYPE (valcontents) == Lisp_Some_Buffer_Local_Value) | |
7921925c | 827 | { |
d8cafeb5 JB |
828 | /* valcontents is actually a pointer to a cons heading something like: |
829 | (REALVALUE BUFFER CURRENT-ALIST-ELEMENT . DEFAULT-VALUE). | |
830 | ||
831 | BUFFER is the last buffer for which this symbol's value was | |
832 | made up to date. | |
833 | ||
834 | CURRENT-ALIST-ELEMENT is a pointer to an element of BUFFER's | |
835 | local_var_alist, that being the element whose car is this | |
836 | variable. Or it can be a pointer to the | |
837 | (CURRENT-ALIST-ELEMENT . DEFAULT-VALUE), if BUFFER does not | |
838 | have an element in its alist for this variable (that is, if | |
839 | BUFFER sees the default value of this variable). | |
840 | ||
841 | If we want to examine or set the value and BUFFER is current, | |
842 | we just examine or set REALVALUE. If BUFFER is not current, we | |
843 | store the current REALVALUE value into CURRENT-ALIST-ELEMENT, | |
844 | then find the appropriate alist element for the buffer now | |
845 | current and set up CURRENT-ALIST-ELEMENT. Then we set | |
846 | REALVALUE out of that element, and store into BUFFER. | |
847 | ||
848 | If we are setting the variable and the current buffer does | |
849 | not have an alist entry for this variable, an alist entry is | |
850 | created. | |
851 | ||
852 | Note that REALVALUE can be a forwarding pointer. Each time | |
853 | it is examined or set, forwarding must be done. */ | |
854 | ||
855 | /* What value are we caching right now? */ | |
856 | current_alist_element = | |
857 | XCONS (XCONS (XCONS (valcontents)->cdr)->cdr)->car; | |
858 | ||
859 | /* If the current buffer is not the buffer whose binding is | |
860 | currently cached, or if it's a Lisp_Buffer_Local_Value and | |
861 | we're looking at the default value, the cache is invalid; we | |
862 | need to write it out, and find the new CURRENT-ALIST-ELEMENT. */ | |
863 | if ((current_buffer | |
864 | != XBUFFER (XCONS (XCONS (valcontents)->cdr)->car)) | |
865 | || (XTYPE (valcontents) == Lisp_Buffer_Local_Value | |
b06faa91 JB |
866 | && EQ (XCONS (current_alist_element)->car, |
867 | current_alist_element))) | |
7921925c | 868 | { |
d8cafeb5 JB |
869 | /* Write out the cached value for the old buffer; copy it |
870 | back to its alist element. This works if the current | |
871 | buffer only sees the default value, too. */ | |
872 | Fsetcdr (current_alist_element, | |
873 | do_symval_forwarding (XCONS (valcontents)->car)); | |
7921925c | 874 | |
d8cafeb5 | 875 | /* Find the new value for CURRENT-ALIST-ELEMENT. */ |
7921925c | 876 | tem1 = Fassq (sym, current_buffer->local_var_alist); |
a33ef3ab | 877 | if (NILP (tem1)) |
d8cafeb5 JB |
878 | { |
879 | /* This buffer still sees the default value. */ | |
880 | ||
881 | /* If the variable is a Lisp_Some_Buffer_Local_Value, | |
882 | make CURRENT-ALIST-ELEMENT point to itself, | |
883 | indicating that we're seeing the default value. */ | |
884 | if (XTYPE (valcontents) == Lisp_Some_Buffer_Local_Value) | |
885 | tem1 = XCONS (XCONS (valcontents)->cdr)->cdr; | |
886 | ||
887 | /* If it's a Lisp_Buffer_Local_Value, give this buffer a | |
888 | new assoc for a local value and set | |
889 | CURRENT-ALIST-ELEMENT to point to that. */ | |
890 | else | |
891 | { | |
892 | tem1 = Fcons (sym, Fcdr (current_alist_element)); | |
893 | current_buffer->local_var_alist = | |
894 | Fcons (tem1, current_buffer->local_var_alist); | |
895 | } | |
896 | } | |
897 | /* Cache the new buffer's assoc in CURRENT-ALIST-ELEMENT. */ | |
7921925c | 898 | XCONS (XCONS (XCONS (valcontents)->cdr)->cdr)->car = tem1; |
d8cafeb5 JB |
899 | |
900 | /* Set BUFFER, now that CURRENT-ALIST-ELEMENT is accurate. */ | |
901 | XSET (XCONS (XCONS (valcontents)->cdr)->car, | |
902 | Lisp_Buffer, current_buffer); | |
7921925c JB |
903 | } |
904 | valcontents = XCONS (valcontents)->car; | |
905 | } | |
d8cafeb5 | 906 | |
7921925c JB |
907 | /* If storing void (making the symbol void), forward only through |
908 | buffer-local indicator, not through Lisp_Objfwd, etc. */ | |
909 | if (voide) | |
910 | store_symval_forwarding (sym, Qnil, newval); | |
911 | else | |
912 | store_symval_forwarding (sym, valcontents, newval); | |
d8cafeb5 | 913 | |
7921925c JB |
914 | return newval; |
915 | } | |
916 | \f | |
917 | /* Access or set a buffer-local symbol's default value. */ | |
918 | ||
919 | /* Return the default value of SYM, but don't check for voidness. | |
920 | Return Qunbound or a Lisp_Void object if it is void. */ | |
921 | ||
922 | Lisp_Object | |
923 | default_value (sym) | |
924 | Lisp_Object sym; | |
925 | { | |
926 | register Lisp_Object valcontents; | |
927 | ||
928 | CHECK_SYMBOL (sym, 0); | |
929 | valcontents = XSYMBOL (sym)->value; | |
930 | ||
931 | /* For a built-in buffer-local variable, get the default value | |
932 | rather than letting do_symval_forwarding get the current value. */ | |
933 | if (XTYPE (valcontents) == Lisp_Buffer_Objfwd) | |
934 | { | |
935 | register int idx = XUINT (valcontents); | |
936 | ||
937 | if (*(int *) (idx + (char *) &buffer_local_flags) != 0) | |
938 | return *(Lisp_Object *)(idx + (char *) &buffer_defaults); | |
939 | } | |
940 | ||
941 | /* Handle user-created local variables. */ | |
942 | if (XTYPE (valcontents) == Lisp_Buffer_Local_Value | |
943 | || XTYPE (valcontents) == Lisp_Some_Buffer_Local_Value) | |
944 | { | |
945 | /* If var is set up for a buffer that lacks a local value for it, | |
946 | the current value is nominally the default value. | |
947 | But the current value slot may be more up to date, since | |
948 | ordinary setq stores just that slot. So use that. */ | |
949 | Lisp_Object current_alist_element, alist_element_car; | |
950 | current_alist_element | |
951 | = XCONS (XCONS (XCONS (valcontents)->cdr)->cdr)->car; | |
952 | alist_element_car = XCONS (current_alist_element)->car; | |
953 | if (EQ (alist_element_car, current_alist_element)) | |
954 | return do_symval_forwarding (XCONS (valcontents)->car); | |
955 | else | |
956 | return XCONS (XCONS (XCONS (valcontents)->cdr)->cdr)->cdr; | |
957 | } | |
958 | /* For other variables, get the current value. */ | |
959 | return do_symval_forwarding (valcontents); | |
960 | } | |
961 | ||
962 | DEFUN ("default-boundp", Fdefault_boundp, Sdefault_boundp, 1, 1, 0, | |
963 | "Return T if SYMBOL has a non-void default value.\n\ | |
964 | This is the value that is seen in buffers that do not have their own values\n\ | |
965 | for this variable.") | |
966 | (sym) | |
967 | Lisp_Object sym; | |
968 | { | |
969 | register Lisp_Object value; | |
970 | ||
971 | value = default_value (sym); | |
972 | return (XTYPE (value) == Lisp_Void || EQ (value, Qunbound) | |
973 | ? Qnil : Qt); | |
974 | } | |
975 | ||
976 | DEFUN ("default-value", Fdefault_value, Sdefault_value, 1, 1, 0, | |
977 | "Return SYMBOL's default value.\n\ | |
978 | This is the value that is seen in buffers that do not have their own values\n\ | |
979 | for this variable. The default value is meaningful for variables with\n\ | |
980 | local bindings in certain buffers.") | |
981 | (sym) | |
982 | Lisp_Object sym; | |
983 | { | |
984 | register Lisp_Object value; | |
985 | ||
986 | value = default_value (sym); | |
987 | if (XTYPE (value) == Lisp_Void || EQ (value, Qunbound)) | |
988 | return Fsignal (Qvoid_variable, Fcons (sym, Qnil)); | |
989 | return value; | |
990 | } | |
991 | ||
992 | DEFUN ("set-default", Fset_default, Sset_default, 2, 2, 0, | |
993 | "Set SYMBOL's default value to VAL. SYMBOL and VAL are evaluated.\n\ | |
994 | The default value is seen in buffers that do not have their own values\n\ | |
995 | for this variable.") | |
996 | (sym, value) | |
997 | Lisp_Object sym, value; | |
998 | { | |
999 | register Lisp_Object valcontents, current_alist_element, alist_element_buffer; | |
1000 | ||
1001 | CHECK_SYMBOL (sym, 0); | |
1002 | valcontents = XSYMBOL (sym)->value; | |
1003 | ||
1004 | /* Handle variables like case-fold-search that have special slots | |
1005 | in the buffer. Make them work apparently like Lisp_Buffer_Local_Value | |
1006 | variables. */ | |
1007 | if (XTYPE (valcontents) == Lisp_Buffer_Objfwd) | |
1008 | { | |
1009 | register int idx = XUINT (valcontents); | |
1010 | #ifndef RTPC_REGISTER_BUG | |
1011 | register struct buffer *b; | |
1012 | #else | |
1013 | struct buffer *b; | |
1014 | #endif | |
1015 | register int mask = *(int *) (idx + (char *) &buffer_local_flags); | |
1016 | ||
1017 | if (mask > 0) | |
1018 | { | |
1019 | *(Lisp_Object *)(idx + (char *) &buffer_defaults) = value; | |
1020 | for (b = all_buffers; b; b = b->next) | |
1021 | if (!(b->local_var_flags & mask)) | |
1022 | *(Lisp_Object *)(idx + (char *) b) = value; | |
1023 | } | |
1024 | return value; | |
1025 | } | |
1026 | ||
1027 | if (XTYPE (valcontents) != Lisp_Buffer_Local_Value && | |
1028 | XTYPE (valcontents) != Lisp_Some_Buffer_Local_Value) | |
1029 | return Fset (sym, value); | |
1030 | ||
1031 | /* Store new value into the DEFAULT-VALUE slot */ | |
1032 | XCONS (XCONS (XCONS (valcontents)->cdr)->cdr)->cdr = value; | |
1033 | ||
1034 | /* If that slot is current, we must set the REALVALUE slot too */ | |
1035 | current_alist_element = XCONS (XCONS (XCONS (valcontents)->cdr)->cdr)->car; | |
1036 | alist_element_buffer = Fcar (current_alist_element); | |
1037 | if (EQ (alist_element_buffer, current_alist_element)) | |
1038 | store_symval_forwarding (sym, XCONS (valcontents)->car, value); | |
1039 | ||
1040 | return value; | |
1041 | } | |
1042 | ||
1043 | DEFUN ("setq-default", Fsetq_default, Ssetq_default, 2, UNEVALLED, 0, | |
0412bf67 RS |
1044 | "Set the default value of variable VAR to VALUE.\n\ |
1045 | VAR, the variable name, is literal (not evaluated);\n\ | |
1046 | VALUE is an expression and it is evaluated.\n\ | |
1047 | The default value of a variable is seen in buffers\n\ | |
1048 | that do not have their own values for the variable.\n\ | |
1049 | \n\ | |
1050 | More generally, you can use multiple variables and values, as in\n\ | |
1051 | (setq-default SYM VALUE SYM VALUE...)\n\ | |
1052 | This sets each SYM's default value to the corresponding VALUE.\n\ | |
1053 | The VALUE for the Nth SYM can refer to the new default values\n\ | |
1054 | of previous SYMs.") | |
7921925c JB |
1055 | (args) |
1056 | Lisp_Object args; | |
1057 | { | |
1058 | register Lisp_Object args_left; | |
1059 | register Lisp_Object val, sym; | |
1060 | struct gcpro gcpro1; | |
1061 | ||
a33ef3ab | 1062 | if (NILP (args)) |
7921925c JB |
1063 | return Qnil; |
1064 | ||
1065 | args_left = args; | |
1066 | GCPRO1 (args); | |
1067 | ||
1068 | do | |
1069 | { | |
1070 | val = Feval (Fcar (Fcdr (args_left))); | |
1071 | sym = Fcar (args_left); | |
1072 | Fset_default (sym, val); | |
1073 | args_left = Fcdr (Fcdr (args_left)); | |
1074 | } | |
a33ef3ab | 1075 | while (!NILP (args_left)); |
7921925c JB |
1076 | |
1077 | UNGCPRO; | |
1078 | return val; | |
1079 | } | |
1080 | \f | |
a5ca2b75 JB |
1081 | /* Lisp functions for creating and removing buffer-local variables. */ |
1082 | ||
7921925c JB |
1083 | DEFUN ("make-variable-buffer-local", Fmake_variable_buffer_local, Smake_variable_buffer_local, |
1084 | 1, 1, "vMake Variable Buffer Local: ", | |
1085 | "Make VARIABLE have a separate value for each buffer.\n\ | |
1086 | At any time, the value for the current buffer is in effect.\n\ | |
1087 | There is also a default value which is seen in any buffer which has not yet\n\ | |
1088 | set its own value.\n\ | |
1089 | Using `set' or `setq' to set the variable causes it to have a separate value\n\ | |
1090 | for the current buffer if it was previously using the default value.\n\ | |
1091 | The function `default-value' gets the default value and `set-default' sets it.") | |
1092 | (sym) | |
1093 | register Lisp_Object sym; | |
1094 | { | |
1095 | register Lisp_Object tem, valcontents; | |
1096 | ||
1097 | CHECK_SYMBOL (sym, 0); | |
1098 | ||
1099 | if (EQ (sym, Qnil) || EQ (sym, Qt)) | |
1100 | error ("Symbol %s may not be buffer-local", XSYMBOL (sym)->name->data); | |
1101 | ||
1102 | valcontents = XSYMBOL (sym)->value; | |
1103 | if ((XTYPE (valcontents) == Lisp_Buffer_Local_Value) || | |
1104 | (XTYPE (valcontents) == Lisp_Buffer_Objfwd)) | |
1105 | return sym; | |
1106 | if (XTYPE (valcontents) == Lisp_Some_Buffer_Local_Value) | |
1107 | { | |
1108 | XSETTYPE (XSYMBOL (sym)->value, Lisp_Buffer_Local_Value); | |
1109 | return sym; | |
1110 | } | |
1111 | if (EQ (valcontents, Qunbound)) | |
1112 | XSYMBOL (sym)->value = Qnil; | |
1113 | tem = Fcons (Qnil, Fsymbol_value (sym)); | |
1114 | XCONS (tem)->car = tem; | |
1115 | XSYMBOL (sym)->value = Fcons (XSYMBOL (sym)->value, Fcons (Fcurrent_buffer (), tem)); | |
1116 | XSETTYPE (XSYMBOL (sym)->value, Lisp_Buffer_Local_Value); | |
1117 | return sym; | |
1118 | } | |
1119 | ||
1120 | DEFUN ("make-local-variable", Fmake_local_variable, Smake_local_variable, | |
1121 | 1, 1, "vMake Local Variable: ", | |
1122 | "Make VARIABLE have a separate value in the current buffer.\n\ | |
1123 | Other buffers will continue to share a common default value.\n\ | |
a782f0d5 RS |
1124 | \(The buffer-local value of VARIABLE starts out as the same value\n\ |
1125 | VARIABLE previously had. If VARIABLE was void, it remains void.\)\n\ | |
7921925c JB |
1126 | See also `make-variable-buffer-local'.\n\n\ |
1127 | If the variable is already arranged to become local when set,\n\ | |
1128 | this function causes a local value to exist for this buffer,\n\ | |
1129 | just as if the variable were set.") | |
1130 | (sym) | |
1131 | register Lisp_Object sym; | |
1132 | { | |
1133 | register Lisp_Object tem, valcontents; | |
1134 | ||
1135 | CHECK_SYMBOL (sym, 0); | |
1136 | ||
1137 | if (EQ (sym, Qnil) || EQ (sym, Qt)) | |
1138 | error ("Symbol %s may not be buffer-local", XSYMBOL (sym)->name->data); | |
1139 | ||
1140 | valcontents = XSYMBOL (sym)->value; | |
1141 | if (XTYPE (valcontents) == Lisp_Buffer_Local_Value | |
1142 | || XTYPE (valcontents) == Lisp_Buffer_Objfwd) | |
1143 | { | |
1144 | tem = Fboundp (sym); | |
1145 | ||
1146 | /* Make sure the symbol has a local value in this particular buffer, | |
1147 | by setting it to the same value it already has. */ | |
1148 | Fset (sym, (EQ (tem, Qt) ? Fsymbol_value (sym) : Qunbound)); | |
1149 | return sym; | |
1150 | } | |
1151 | /* Make sure sym is set up to hold per-buffer values */ | |
1152 | if (XTYPE (valcontents) != Lisp_Some_Buffer_Local_Value) | |
1153 | { | |
7921925c JB |
1154 | tem = Fcons (Qnil, do_symval_forwarding (valcontents)); |
1155 | XCONS (tem)->car = tem; | |
1156 | XSYMBOL (sym)->value = Fcons (XSYMBOL (sym)->value, Fcons (Qnil, tem)); | |
1157 | XSETTYPE (XSYMBOL (sym)->value, Lisp_Some_Buffer_Local_Value); | |
1158 | } | |
1159 | /* Make sure this buffer has its own value of sym */ | |
1160 | tem = Fassq (sym, current_buffer->local_var_alist); | |
a33ef3ab | 1161 | if (NILP (tem)) |
7921925c JB |
1162 | { |
1163 | current_buffer->local_var_alist | |
1164 | = Fcons (Fcons (sym, XCONS (XCONS (XCONS (XSYMBOL (sym)->value)->cdr)->cdr)->cdr), | |
1165 | current_buffer->local_var_alist); | |
1166 | ||
1167 | /* Make sure symbol does not think it is set up for this buffer; | |
1168 | force it to look once again for this buffer's value */ | |
1169 | { | |
1170 | /* This local variable avoids "expression too complex" on IBM RT. */ | |
1171 | Lisp_Object xs; | |
1172 | ||
1173 | xs = XSYMBOL (sym)->value; | |
1174 | if (current_buffer == XBUFFER (XCONS (XCONS (xs)->cdr)->car)) | |
1175 | XCONS (XCONS (XSYMBOL (sym)->value)->cdr)->car = Qnil; | |
1176 | } | |
7921925c | 1177 | } |
a5ca2b75 JB |
1178 | |
1179 | /* If the symbol forwards into a C variable, then swap in the | |
1180 | variable for this buffer immediately. If C code modifies the | |
1181 | variable before we swap in, then that new value will clobber the | |
1182 | default value the next time we swap. */ | |
1183 | valcontents = XCONS (XSYMBOL (sym)->value)->car; | |
1184 | if (XTYPE (valcontents) == Lisp_Intfwd | |
1185 | || XTYPE (valcontents) == Lisp_Boolfwd | |
1186 | || XTYPE (valcontents) == Lisp_Objfwd) | |
1187 | swap_in_symval_forwarding (sym, XSYMBOL (sym)->value); | |
1188 | ||
7921925c JB |
1189 | return sym; |
1190 | } | |
1191 | ||
1192 | DEFUN ("kill-local-variable", Fkill_local_variable, Skill_local_variable, | |
1193 | 1, 1, "vKill Local Variable: ", | |
1194 | "Make VARIABLE no longer have a separate value in the current buffer.\n\ | |
1195 | From now on the default value will apply in this buffer.") | |
1196 | (sym) | |
1197 | register Lisp_Object sym; | |
1198 | { | |
1199 | register Lisp_Object tem, valcontents; | |
1200 | ||
1201 | CHECK_SYMBOL (sym, 0); | |
1202 | ||
1203 | valcontents = XSYMBOL (sym)->value; | |
1204 | ||
1205 | if (XTYPE (valcontents) == Lisp_Buffer_Objfwd) | |
1206 | { | |
1207 | register int idx = XUINT (valcontents); | |
1208 | register int mask = *(int *) (idx + (char *) &buffer_local_flags); | |
1209 | ||
1210 | if (mask > 0) | |
1211 | { | |
1212 | *(Lisp_Object *)(idx + (char *) current_buffer) | |
1213 | = *(Lisp_Object *)(idx + (char *) &buffer_defaults); | |
1214 | current_buffer->local_var_flags &= ~mask; | |
1215 | } | |
1216 | return sym; | |
1217 | } | |
1218 | ||
1219 | if (XTYPE (valcontents) != Lisp_Buffer_Local_Value && | |
1220 | XTYPE (valcontents) != Lisp_Some_Buffer_Local_Value) | |
1221 | return sym; | |
1222 | ||
1223 | /* Get rid of this buffer's alist element, if any */ | |
1224 | ||
1225 | tem = Fassq (sym, current_buffer->local_var_alist); | |
a33ef3ab | 1226 | if (!NILP (tem)) |
7921925c JB |
1227 | current_buffer->local_var_alist = Fdelq (tem, current_buffer->local_var_alist); |
1228 | ||
1229 | /* Make sure symbol does not think it is set up for this buffer; | |
1230 | force it to look once again for this buffer's value */ | |
1231 | { | |
1232 | Lisp_Object sv; | |
1233 | sv = XSYMBOL (sym)->value; | |
1234 | if (current_buffer == XBUFFER (XCONS (XCONS (sv)->cdr)->car)) | |
1235 | XCONS (XCONS (sv)->cdr)->car = Qnil; | |
1236 | } | |
1237 | ||
1238 | return sym; | |
1239 | } | |
1240 | \f | |
ffd56f97 JB |
1241 | /* Find the function at the end of a chain of symbol function indirections. */ |
1242 | ||
1243 | /* If OBJECT is a symbol, find the end of its function chain and | |
1244 | return the value found there. If OBJECT is not a symbol, just | |
1245 | return it. If there is a cycle in the function chain, signal a | |
1246 | cyclic-function-indirection error. | |
1247 | ||
1248 | This is like Findirect_function, except that it doesn't signal an | |
1249 | error if the chain ends up unbound. */ | |
1250 | Lisp_Object | |
a2932990 | 1251 | indirect_function (object) |
ffd56f97 JB |
1252 | register Lisp_Object object; |
1253 | { | |
eb8c3be9 | 1254 | Lisp_Object tortoise, hare; |
ffd56f97 | 1255 | |
eb8c3be9 | 1256 | hare = tortoise = object; |
ffd56f97 JB |
1257 | |
1258 | for (;;) | |
1259 | { | |
1260 | if (XTYPE (hare) != Lisp_Symbol || EQ (hare, Qunbound)) | |
1261 | break; | |
1262 | hare = XSYMBOL (hare)->function; | |
1263 | if (XTYPE (hare) != Lisp_Symbol || EQ (hare, Qunbound)) | |
1264 | break; | |
1265 | hare = XSYMBOL (hare)->function; | |
1266 | ||
eb8c3be9 | 1267 | tortoise = XSYMBOL (tortoise)->function; |
ffd56f97 | 1268 | |
eb8c3be9 | 1269 | if (EQ (hare, tortoise)) |
ffd56f97 JB |
1270 | Fsignal (Qcyclic_function_indirection, Fcons (object, Qnil)); |
1271 | } | |
1272 | ||
1273 | return hare; | |
1274 | } | |
1275 | ||
1276 | DEFUN ("indirect-function", Findirect_function, Sindirect_function, 1, 1, 0, | |
1277 | "Return the function at the end of OBJECT's function chain.\n\ | |
1278 | If OBJECT is a symbol, follow all function indirections and return the final\n\ | |
1279 | function binding.\n\ | |
1280 | If OBJECT is not a symbol, just return it.\n\ | |
1281 | Signal a void-function error if the final symbol is unbound.\n\ | |
1282 | Signal a cyclic-function-indirection error if there is a loop in the\n\ | |
1283 | function chain of symbols.") | |
1284 | (object) | |
1285 | register Lisp_Object object; | |
1286 | { | |
1287 | Lisp_Object result; | |
1288 | ||
1289 | result = indirect_function (object); | |
1290 | ||
1291 | if (EQ (result, Qunbound)) | |
1292 | return Fsignal (Qvoid_function, Fcons (object, Qnil)); | |
1293 | return result; | |
1294 | } | |
1295 | \f | |
7921925c JB |
1296 | /* Extract and set vector and string elements */ |
1297 | ||
1298 | DEFUN ("aref", Faref, Saref, 2, 2, 0, | |
1299 | "Return the element of ARRAY at index INDEX.\n\ | |
1300 | ARRAY may be a vector or a string, or a byte-code object. INDEX starts at 0.") | |
1301 | (array, idx) | |
1302 | register Lisp_Object array; | |
1303 | Lisp_Object idx; | |
1304 | { | |
1305 | register int idxval; | |
1306 | ||
1307 | CHECK_NUMBER (idx, 1); | |
1308 | idxval = XINT (idx); | |
1309 | if (XTYPE (array) != Lisp_Vector && XTYPE (array) != Lisp_String | |
1310 | && XTYPE (array) != Lisp_Compiled) | |
1311 | array = wrong_type_argument (Qarrayp, array); | |
1312 | if (idxval < 0 || idxval >= XVECTOR (array)->size) | |
1313 | args_out_of_range (array, idx); | |
1314 | if (XTYPE (array) == Lisp_String) | |
1315 | { | |
1316 | Lisp_Object val; | |
1317 | XFASTINT (val) = (unsigned char) XSTRING (array)->data[idxval]; | |
1318 | return val; | |
1319 | } | |
1320 | else | |
1321 | return XVECTOR (array)->contents[idxval]; | |
1322 | } | |
1323 | ||
1324 | DEFUN ("aset", Faset, Saset, 3, 3, 0, | |
73d40355 RS |
1325 | "Store into the element of ARRAY at index IDX the value NEWELT.\n\ |
1326 | ARRAY may be a vector or a string. IDX starts at 0.") | |
7921925c JB |
1327 | (array, idx, newelt) |
1328 | register Lisp_Object array; | |
1329 | Lisp_Object idx, newelt; | |
1330 | { | |
1331 | register int idxval; | |
1332 | ||
1333 | CHECK_NUMBER (idx, 1); | |
1334 | idxval = XINT (idx); | |
1335 | if (XTYPE (array) != Lisp_Vector && XTYPE (array) != Lisp_String) | |
1336 | array = wrong_type_argument (Qarrayp, array); | |
1337 | if (idxval < 0 || idxval >= XVECTOR (array)->size) | |
1338 | args_out_of_range (array, idx); | |
1339 | CHECK_IMPURE (array); | |
1340 | ||
1341 | if (XTYPE (array) == Lisp_Vector) | |
1342 | XVECTOR (array)->contents[idxval] = newelt; | |
1343 | else | |
1344 | { | |
1345 | CHECK_NUMBER (newelt, 2); | |
1346 | XSTRING (array)->data[idxval] = XINT (newelt); | |
1347 | } | |
1348 | ||
1349 | return newelt; | |
1350 | } | |
1351 | ||
1352 | Lisp_Object | |
1353 | Farray_length (array) | |
1354 | register Lisp_Object array; | |
1355 | { | |
1356 | register Lisp_Object size; | |
1357 | if (XTYPE (array) != Lisp_Vector && XTYPE (array) != Lisp_String | |
1358 | && XTYPE (array) != Lisp_Compiled) | |
1359 | array = wrong_type_argument (Qarrayp, array); | |
1360 | XFASTINT (size) = XVECTOR (array)->size; | |
1361 | return size; | |
1362 | } | |
1363 | \f | |
1364 | /* Arithmetic functions */ | |
1365 | ||
1366 | enum comparison { equal, notequal, less, grtr, less_or_equal, grtr_or_equal }; | |
1367 | ||
1368 | Lisp_Object | |
1369 | arithcompare (num1, num2, comparison) | |
1370 | Lisp_Object num1, num2; | |
1371 | enum comparison comparison; | |
1372 | { | |
1373 | double f1, f2; | |
1374 | int floatp = 0; | |
1375 | ||
1376 | #ifdef LISP_FLOAT_TYPE | |
1377 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1, 0); | |
1378 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2, 0); | |
1379 | ||
1380 | if (XTYPE (num1) == Lisp_Float || XTYPE (num2) == Lisp_Float) | |
1381 | { | |
1382 | floatp = 1; | |
1383 | f1 = (XTYPE (num1) == Lisp_Float) ? XFLOAT (num1)->data : XINT (num1); | |
1384 | f2 = (XTYPE (num2) == Lisp_Float) ? XFLOAT (num2)->data : XINT (num2); | |
1385 | } | |
1386 | #else | |
1387 | CHECK_NUMBER_COERCE_MARKER (num1, 0); | |
1388 | CHECK_NUMBER_COERCE_MARKER (num2, 0); | |
1389 | #endif /* LISP_FLOAT_TYPE */ | |
1390 | ||
1391 | switch (comparison) | |
1392 | { | |
1393 | case equal: | |
1394 | if (floatp ? f1 == f2 : XINT (num1) == XINT (num2)) | |
1395 | return Qt; | |
1396 | return Qnil; | |
1397 | ||
1398 | case notequal: | |
1399 | if (floatp ? f1 != f2 : XINT (num1) != XINT (num2)) | |
1400 | return Qt; | |
1401 | return Qnil; | |
1402 | ||
1403 | case less: | |
1404 | if (floatp ? f1 < f2 : XINT (num1) < XINT (num2)) | |
1405 | return Qt; | |
1406 | return Qnil; | |
1407 | ||
1408 | case less_or_equal: | |
1409 | if (floatp ? f1 <= f2 : XINT (num1) <= XINT (num2)) | |
1410 | return Qt; | |
1411 | return Qnil; | |
1412 | ||
1413 | case grtr: | |
1414 | if (floatp ? f1 > f2 : XINT (num1) > XINT (num2)) | |
1415 | return Qt; | |
1416 | return Qnil; | |
1417 | ||
1418 | case grtr_or_equal: | |
1419 | if (floatp ? f1 >= f2 : XINT (num1) >= XINT (num2)) | |
1420 | return Qt; | |
1421 | return Qnil; | |
25e40a4b JB |
1422 | |
1423 | default: | |
1424 | abort (); | |
7921925c JB |
1425 | } |
1426 | } | |
1427 | ||
1428 | DEFUN ("=", Feqlsign, Seqlsign, 2, 2, 0, | |
1429 | "T if two args, both numbers or markers, are equal.") | |
1430 | (num1, num2) | |
1431 | register Lisp_Object num1, num2; | |
1432 | { | |
1433 | return arithcompare (num1, num2, equal); | |
1434 | } | |
1435 | ||
1436 | DEFUN ("<", Flss, Slss, 2, 2, 0, | |
1437 | "T if first arg is less than second arg. Both must be numbers or markers.") | |
1438 | (num1, num2) | |
1439 | register Lisp_Object num1, num2; | |
1440 | { | |
1441 | return arithcompare (num1, num2, less); | |
1442 | } | |
1443 | ||
1444 | DEFUN (">", Fgtr, Sgtr, 2, 2, 0, | |
1445 | "T if first arg is greater than second arg. Both must be numbers or markers.") | |
1446 | (num1, num2) | |
1447 | register Lisp_Object num1, num2; | |
1448 | { | |
1449 | return arithcompare (num1, num2, grtr); | |
1450 | } | |
1451 | ||
1452 | DEFUN ("<=", Fleq, Sleq, 2, 2, 0, | |
1453 | "T if first arg is less than or equal to second arg.\n\ | |
1454 | Both must be numbers or markers.") | |
1455 | (num1, num2) | |
1456 | register Lisp_Object num1, num2; | |
1457 | { | |
1458 | return arithcompare (num1, num2, less_or_equal); | |
1459 | } | |
1460 | ||
1461 | DEFUN (">=", Fgeq, Sgeq, 2, 2, 0, | |
1462 | "T if first arg is greater than or equal to second arg.\n\ | |
1463 | Both must be numbers or markers.") | |
1464 | (num1, num2) | |
1465 | register Lisp_Object num1, num2; | |
1466 | { | |
1467 | return arithcompare (num1, num2, grtr_or_equal); | |
1468 | } | |
1469 | ||
1470 | DEFUN ("/=", Fneq, Sneq, 2, 2, 0, | |
1471 | "T if first arg is not equal to second arg. Both must be numbers or markers.") | |
1472 | (num1, num2) | |
1473 | register Lisp_Object num1, num2; | |
1474 | { | |
1475 | return arithcompare (num1, num2, notequal); | |
1476 | } | |
1477 | ||
1478 | DEFUN ("zerop", Fzerop, Szerop, 1, 1, 0, "T if NUMBER is zero.") | |
1479 | (num) | |
1480 | register Lisp_Object num; | |
1481 | { | |
1482 | #ifdef LISP_FLOAT_TYPE | |
1483 | CHECK_NUMBER_OR_FLOAT (num, 0); | |
1484 | ||
1485 | if (XTYPE(num) == Lisp_Float) | |
1486 | { | |
1487 | if (XFLOAT(num)->data == 0.0) | |
1488 | return Qt; | |
1489 | return Qnil; | |
1490 | } | |
1491 | #else | |
1492 | CHECK_NUMBER (num, 0); | |
1493 | #endif /* LISP_FLOAT_TYPE */ | |
1494 | ||
1495 | if (!XINT (num)) | |
1496 | return Qt; | |
1497 | return Qnil; | |
1498 | } | |
1499 | \f | |
51cf3e31 JB |
1500 | /* Convert between 32-bit values and pairs of lispy 24-bit values. */ |
1501 | ||
1502 | Lisp_Object | |
1503 | long_to_cons (i) | |
1504 | unsigned long i; | |
1505 | { | |
1506 | unsigned int top = i >> 16; | |
1507 | unsigned int bot = i & 0xFFFF; | |
1508 | if (top == 0) | |
1509 | return make_number (bot); | |
1510 | if (top == 0xFFFF) | |
1511 | return Fcons (make_number (-1), make_number (bot)); | |
1512 | return Fcons (make_number (top), make_number (bot)); | |
1513 | } | |
1514 | ||
1515 | unsigned long | |
1516 | cons_to_long (c) | |
1517 | Lisp_Object c; | |
1518 | { | |
878a80cc | 1519 | Lisp_Object top, bot; |
51cf3e31 JB |
1520 | if (INTEGERP (c)) |
1521 | return XINT (c); | |
1522 | top = XCONS (c)->car; | |
1523 | bot = XCONS (c)->cdr; | |
1524 | if (CONSP (bot)) | |
1525 | bot = XCONS (bot)->car; | |
1526 | return ((XINT (top) << 16) | XINT (bot)); | |
1527 | } | |
1528 | \f | |
f2980264 | 1529 | DEFUN ("number-to-string", Fnumber_to_string, Snumber_to_string, 1, 1, 0, |
25e40a4b JB |
1530 | "Convert NUM to a string by printing it in decimal.\n\ |
1531 | Uses a minus sign if negative.\n\ | |
1532 | NUM may be an integer or a floating point number.") | |
7921925c JB |
1533 | (num) |
1534 | Lisp_Object num; | |
1535 | { | |
1536 | char buffer[20]; | |
1537 | ||
1538 | #ifndef LISP_FLOAT_TYPE | |
1539 | CHECK_NUMBER (num, 0); | |
1540 | #else | |
1541 | CHECK_NUMBER_OR_FLOAT (num, 0); | |
1542 | ||
1543 | if (XTYPE(num) == Lisp_Float) | |
1544 | { | |
1545 | char pigbuf[350]; /* see comments in float_to_string */ | |
1546 | ||
1547 | float_to_string (pigbuf, XFLOAT(num)->data); | |
1548 | return build_string (pigbuf); | |
1549 | } | |
1550 | #endif /* LISP_FLOAT_TYPE */ | |
1551 | ||
1552 | sprintf (buffer, "%d", XINT (num)); | |
1553 | return build_string (buffer); | |
1554 | } | |
1555 | ||
25e40a4b JB |
1556 | DEFUN ("string-to-number", Fstring_to_number, Sstring_to_number, 1, 1, 0, |
1557 | "Convert STRING to a number by parsing it as a decimal number.\n\ | |
1c1c17eb RS |
1558 | This parses both integers and floating point numbers.\n\ |
1559 | It ignores leading spaces and tabs.") | |
7921925c JB |
1560 | (str) |
1561 | register Lisp_Object str; | |
1562 | { | |
0a3e4d65 | 1563 | unsigned char *p; |
25e40a4b | 1564 | |
7921925c JB |
1565 | CHECK_STRING (str, 0); |
1566 | ||
25e40a4b JB |
1567 | p = XSTRING (str)->data; |
1568 | ||
1569 | /* Skip any whitespace at the front of the number. Some versions of | |
1570 | atoi do this anyway, so we might as well make Emacs lisp consistent. */ | |
0a3e4d65 | 1571 | while (*p == ' ' || *p == '\t') |
25e40a4b JB |
1572 | p++; |
1573 | ||
7921925c | 1574 | #ifdef LISP_FLOAT_TYPE |
25e40a4b JB |
1575 | if (isfloat_string (p)) |
1576 | return make_float (atof (p)); | |
7921925c JB |
1577 | #endif /* LISP_FLOAT_TYPE */ |
1578 | ||
25e40a4b | 1579 | return make_number (atoi (p)); |
7921925c JB |
1580 | } |
1581 | \f | |
1582 | enum arithop | |
1583 | { Aadd, Asub, Amult, Adiv, Alogand, Alogior, Alogxor, Amax, Amin }; | |
1584 | ||
b06faa91 JB |
1585 | extern Lisp_Object float_arith_driver (); |
1586 | ||
7921925c | 1587 | Lisp_Object |
87fbf902 | 1588 | arith_driver (code, nargs, args) |
7921925c JB |
1589 | enum arithop code; |
1590 | int nargs; | |
1591 | register Lisp_Object *args; | |
1592 | { | |
1593 | register Lisp_Object val; | |
1594 | register int argnum; | |
1595 | register int accum; | |
1596 | register int next; | |
1597 | ||
1598 | #ifdef SWITCH_ENUM_BUG | |
1599 | switch ((int) code) | |
1600 | #else | |
1601 | switch (code) | |
1602 | #endif | |
1603 | { | |
1604 | case Alogior: | |
1605 | case Alogxor: | |
1606 | case Aadd: | |
1607 | case Asub: | |
1608 | accum = 0; break; | |
1609 | case Amult: | |
1610 | accum = 1; break; | |
1611 | case Alogand: | |
1612 | accum = -1; break; | |
1613 | } | |
1614 | ||
1615 | for (argnum = 0; argnum < nargs; argnum++) | |
1616 | { | |
1617 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ | |
1618 | #ifdef LISP_FLOAT_TYPE | |
1619 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val, argnum); | |
1620 | ||
1621 | if (XTYPE (val) == Lisp_Float) /* time to do serious math */ | |
1622 | return (float_arith_driver ((double) accum, argnum, code, | |
1623 | nargs, args)); | |
1624 | #else | |
1625 | CHECK_NUMBER_COERCE_MARKER (val, argnum); | |
1626 | #endif /* LISP_FLOAT_TYPE */ | |
1627 | args[argnum] = val; /* runs into a compiler bug. */ | |
1628 | next = XINT (args[argnum]); | |
1629 | #ifdef SWITCH_ENUM_BUG | |
1630 | switch ((int) code) | |
1631 | #else | |
1632 | switch (code) | |
1633 | #endif | |
1634 | { | |
1635 | case Aadd: accum += next; break; | |
1636 | case Asub: | |
1637 | if (!argnum && nargs != 1) | |
1638 | next = - next; | |
1639 | accum -= next; | |
1640 | break; | |
1641 | case Amult: accum *= next; break; | |
1642 | case Adiv: | |
1643 | if (!argnum) accum = next; | |
87fbf902 RS |
1644 | else |
1645 | { | |
1646 | if (next == 0) | |
1647 | Fsignal (Qarith_error, Qnil); | |
1648 | accum /= next; | |
1649 | } | |
7921925c JB |
1650 | break; |
1651 | case Alogand: accum &= next; break; | |
1652 | case Alogior: accum |= next; break; | |
1653 | case Alogxor: accum ^= next; break; | |
1654 | case Amax: if (!argnum || next > accum) accum = next; break; | |
1655 | case Amin: if (!argnum || next < accum) accum = next; break; | |
1656 | } | |
1657 | } | |
1658 | ||
1659 | XSET (val, Lisp_Int, accum); | |
1660 | return val; | |
1661 | } | |
1662 | ||
1663 | #ifdef LISP_FLOAT_TYPE | |
1a2f2d33 KH |
1664 | |
1665 | #undef isnan | |
1666 | #define isnan(x) ((x) != (x)) | |
1667 | ||
7921925c JB |
1668 | Lisp_Object |
1669 | float_arith_driver (accum, argnum, code, nargs, args) | |
1670 | double accum; | |
1671 | register int argnum; | |
1672 | enum arithop code; | |
1673 | int nargs; | |
1674 | register Lisp_Object *args; | |
1675 | { | |
1676 | register Lisp_Object val; | |
1677 | double next; | |
1678 | ||
1679 | for (; argnum < nargs; argnum++) | |
1680 | { | |
1681 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ | |
1682 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val, argnum); | |
1683 | ||
1684 | if (XTYPE (val) == Lisp_Float) | |
1685 | { | |
1686 | next = XFLOAT (val)->data; | |
1687 | } | |
1688 | else | |
1689 | { | |
1690 | args[argnum] = val; /* runs into a compiler bug. */ | |
1691 | next = XINT (args[argnum]); | |
1692 | } | |
1693 | #ifdef SWITCH_ENUM_BUG | |
1694 | switch ((int) code) | |
1695 | #else | |
1696 | switch (code) | |
1697 | #endif | |
1698 | { | |
1699 | case Aadd: | |
1700 | accum += next; | |
1701 | break; | |
1702 | case Asub: | |
1703 | if (!argnum && nargs != 1) | |
1704 | next = - next; | |
1705 | accum -= next; | |
1706 | break; | |
1707 | case Amult: | |
1708 | accum *= next; | |
1709 | break; | |
1710 | case Adiv: | |
1711 | if (!argnum) | |
1712 | accum = next; | |
1713 | else | |
87fbf902 RS |
1714 | { |
1715 | if (next == 0) | |
1716 | Fsignal (Qarith_error, Qnil); | |
1717 | accum /= next; | |
1718 | } | |
7921925c JB |
1719 | break; |
1720 | case Alogand: | |
1721 | case Alogior: | |
1722 | case Alogxor: | |
1723 | return wrong_type_argument (Qinteger_or_marker_p, val); | |
1724 | case Amax: | |
1a2f2d33 | 1725 | if (!argnum || isnan (next) || next > accum) |
7921925c JB |
1726 | accum = next; |
1727 | break; | |
1728 | case Amin: | |
1a2f2d33 | 1729 | if (!argnum || isnan (next) || next < accum) |
7921925c JB |
1730 | accum = next; |
1731 | break; | |
1732 | } | |
1733 | } | |
1734 | ||
1735 | return make_float (accum); | |
1736 | } | |
1737 | #endif /* LISP_FLOAT_TYPE */ | |
1738 | ||
1739 | DEFUN ("+", Fplus, Splus, 0, MANY, 0, | |
1740 | "Return sum of any number of arguments, which are numbers or markers.") | |
1741 | (nargs, args) | |
1742 | int nargs; | |
1743 | Lisp_Object *args; | |
1744 | { | |
1745 | return arith_driver (Aadd, nargs, args); | |
1746 | } | |
1747 | ||
1748 | DEFUN ("-", Fminus, Sminus, 0, MANY, 0, | |
1749 | "Negate number or subtract numbers or markers.\n\ | |
1750 | With one arg, negates it. With more than one arg,\n\ | |
1751 | subtracts all but the first from the first.") | |
1752 | (nargs, args) | |
1753 | int nargs; | |
1754 | Lisp_Object *args; | |
1755 | { | |
1756 | return arith_driver (Asub, nargs, args); | |
1757 | } | |
1758 | ||
1759 | DEFUN ("*", Ftimes, Stimes, 0, MANY, 0, | |
1760 | "Returns product of any number of arguments, which are numbers or markers.") | |
1761 | (nargs, args) | |
1762 | int nargs; | |
1763 | Lisp_Object *args; | |
1764 | { | |
1765 | return arith_driver (Amult, nargs, args); | |
1766 | } | |
1767 | ||
1768 | DEFUN ("/", Fquo, Squo, 2, MANY, 0, | |
1769 | "Returns first argument divided by all the remaining arguments.\n\ | |
1770 | The arguments must be numbers or markers.") | |
1771 | (nargs, args) | |
1772 | int nargs; | |
1773 | Lisp_Object *args; | |
1774 | { | |
1775 | return arith_driver (Adiv, nargs, args); | |
1776 | } | |
1777 | ||
1778 | DEFUN ("%", Frem, Srem, 2, 2, 0, | |
1779 | "Returns remainder of first arg divided by second.\n\ | |
aa29f9b9 | 1780 | Both must be integers or markers.") |
7921925c JB |
1781 | (num1, num2) |
1782 | register Lisp_Object num1, num2; | |
1783 | { | |
1784 | Lisp_Object val; | |
1785 | ||
7921925c JB |
1786 | CHECK_NUMBER_COERCE_MARKER (num1, 0); |
1787 | CHECK_NUMBER_COERCE_MARKER (num2, 1); | |
7921925c | 1788 | |
87fbf902 RS |
1789 | if (XFASTINT (num2) == 0) |
1790 | Fsignal (Qarith_error, Qnil); | |
1791 | ||
7921925c JB |
1792 | XSET (val, Lisp_Int, XINT (num1) % XINT (num2)); |
1793 | return val; | |
1794 | } | |
1795 | ||
1d66a5fa KH |
1796 | #ifndef HAVE_FMOD |
1797 | double | |
1798 | fmod (f1, f2) | |
1799 | double f1, f2; | |
1800 | { | |
1801 | #ifdef HAVE_DREM /* Some systems use this non-standard name. */ | |
1802 | return (drem (f1, f2)); | |
1803 | #else /* Other systems don't seem to have it at all. */ | |
1804 | return (f1 - f2 * floor (f1/f2)); | |
1805 | #endif | |
1806 | } | |
1807 | #endif /* ! HAVE_FMOD */ | |
1808 | ||
44fa9da5 PE |
1809 | DEFUN ("mod", Fmod, Smod, 2, 2, 0, |
1810 | "Returns X modulo Y.\n\ | |
1811 | The result falls between zero (inclusive) and Y (exclusive).\n\ | |
1812 | Both X and Y must be numbers or markers.") | |
1813 | (num1, num2) | |
1814 | register Lisp_Object num1, num2; | |
1815 | { | |
1816 | Lisp_Object val; | |
1817 | int i1, i2; | |
1818 | ||
1819 | #ifdef LISP_FLOAT_TYPE | |
1820 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1, 0); | |
1821 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2, 1); | |
1822 | ||
1823 | if (XTYPE (num1) == Lisp_Float || XTYPE (num2) == Lisp_Float) | |
1824 | { | |
1825 | double f1, f2; | |
1826 | ||
1827 | f1 = XTYPE (num1) == Lisp_Float ? XFLOAT (num1)->data : XINT (num1); | |
1828 | f2 = XTYPE (num2) == Lisp_Float ? XFLOAT (num2)->data : XINT (num2); | |
1829 | if (f2 == 0) | |
1830 | Fsignal (Qarith_error, Qnil); | |
1831 | ||
44fa9da5 | 1832 | f1 = fmod (f1, f2); |
44fa9da5 PE |
1833 | /* If the "remainder" comes out with the wrong sign, fix it. */ |
1834 | if ((f1 < 0) != (f2 < 0)) | |
1835 | f1 += f2; | |
1836 | return (make_float (f1)); | |
1837 | } | |
1838 | #else /* not LISP_FLOAT_TYPE */ | |
1839 | CHECK_NUMBER_COERCE_MARKER (num1, 0); | |
1840 | CHECK_NUMBER_COERCE_MARKER (num2, 1); | |
1841 | #endif /* not LISP_FLOAT_TYPE */ | |
1842 | ||
1843 | i1 = XINT (num1); | |
1844 | i2 = XINT (num2); | |
1845 | ||
1846 | if (i2 == 0) | |
1847 | Fsignal (Qarith_error, Qnil); | |
1848 | ||
1849 | i1 %= i2; | |
1850 | ||
1851 | /* If the "remainder" comes out with the wrong sign, fix it. */ | |
1852 | if ((i1 < 0) != (i2 < 0)) | |
1853 | i1 += i2; | |
1854 | ||
1855 | XSET (val, Lisp_Int, i1); | |
1856 | return val; | |
1857 | } | |
1858 | ||
7921925c JB |
1859 | DEFUN ("max", Fmax, Smax, 1, MANY, 0, |
1860 | "Return largest of all the arguments (which must be numbers or markers).\n\ | |
1861 | The value is always a number; markers are converted to numbers.") | |
1862 | (nargs, args) | |
1863 | int nargs; | |
1864 | Lisp_Object *args; | |
1865 | { | |
1866 | return arith_driver (Amax, nargs, args); | |
1867 | } | |
1868 | ||
1869 | DEFUN ("min", Fmin, Smin, 1, MANY, 0, | |
1870 | "Return smallest of all the arguments (which must be numbers or markers).\n\ | |
1871 | The value is always a number; markers are converted to numbers.") | |
1872 | (nargs, args) | |
1873 | int nargs; | |
1874 | Lisp_Object *args; | |
1875 | { | |
1876 | return arith_driver (Amin, nargs, args); | |
1877 | } | |
1878 | ||
1879 | DEFUN ("logand", Flogand, Slogand, 0, MANY, 0, | |
1880 | "Return bitwise-and of all the arguments.\n\ | |
1881 | Arguments may be integers, or markers converted to integers.") | |
1882 | (nargs, args) | |
1883 | int nargs; | |
1884 | Lisp_Object *args; | |
1885 | { | |
1886 | return arith_driver (Alogand, nargs, args); | |
1887 | } | |
1888 | ||
1889 | DEFUN ("logior", Flogior, Slogior, 0, MANY, 0, | |
1890 | "Return bitwise-or of all the arguments.\n\ | |
1891 | Arguments may be integers, or markers converted to integers.") | |
1892 | (nargs, args) | |
1893 | int nargs; | |
1894 | Lisp_Object *args; | |
1895 | { | |
1896 | return arith_driver (Alogior, nargs, args); | |
1897 | } | |
1898 | ||
1899 | DEFUN ("logxor", Flogxor, Slogxor, 0, MANY, 0, | |
1900 | "Return bitwise-exclusive-or of all the arguments.\n\ | |
1901 | Arguments may be integers, or markers converted to integers.") | |
1902 | (nargs, args) | |
1903 | int nargs; | |
1904 | Lisp_Object *args; | |
1905 | { | |
1906 | return arith_driver (Alogxor, nargs, args); | |
1907 | } | |
1908 | ||
1909 | DEFUN ("ash", Fash, Sash, 2, 2, 0, | |
1910 | "Return VALUE with its bits shifted left by COUNT.\n\ | |
1911 | If COUNT is negative, shifting is actually to the right.\n\ | |
1912 | In this case, the sign bit is duplicated.") | |
1913 | (num1, num2) | |
1914 | register Lisp_Object num1, num2; | |
1915 | { | |
1916 | register Lisp_Object val; | |
1917 | ||
1918 | CHECK_NUMBER (num1, 0); | |
1919 | CHECK_NUMBER (num2, 1); | |
1920 | ||
1921 | if (XINT (num2) > 0) | |
1922 | XSET (val, Lisp_Int, XINT (num1) << XFASTINT (num2)); | |
1923 | else | |
1924 | XSET (val, Lisp_Int, XINT (num1) >> -XINT (num2)); | |
1925 | return val; | |
1926 | } | |
1927 | ||
1928 | DEFUN ("lsh", Flsh, Slsh, 2, 2, 0, | |
1929 | "Return VALUE with its bits shifted left by COUNT.\n\ | |
1930 | If COUNT is negative, shifting is actually to the right.\n\ | |
1931 | In this case, zeros are shifted in on the left.") | |
1932 | (num1, num2) | |
1933 | register Lisp_Object num1, num2; | |
1934 | { | |
1935 | register Lisp_Object val; | |
1936 | ||
1937 | CHECK_NUMBER (num1, 0); | |
1938 | CHECK_NUMBER (num2, 1); | |
1939 | ||
1940 | if (XINT (num2) > 0) | |
1941 | XSET (val, Lisp_Int, (unsigned) XFASTINT (num1) << XFASTINT (num2)); | |
1942 | else | |
1943 | XSET (val, Lisp_Int, (unsigned) XFASTINT (num1) >> -XINT (num2)); | |
1944 | return val; | |
1945 | } | |
1946 | ||
1947 | DEFUN ("1+", Fadd1, Sadd1, 1, 1, 0, | |
1948 | "Return NUMBER plus one. NUMBER may be a number or a marker.\n\ | |
1949 | Markers are converted to integers.") | |
1950 | (num) | |
1951 | register Lisp_Object num; | |
1952 | { | |
1953 | #ifdef LISP_FLOAT_TYPE | |
1954 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num, 0); | |
1955 | ||
1956 | if (XTYPE (num) == Lisp_Float) | |
1957 | return (make_float (1.0 + XFLOAT (num)->data)); | |
1958 | #else | |
1959 | CHECK_NUMBER_COERCE_MARKER (num, 0); | |
1960 | #endif /* LISP_FLOAT_TYPE */ | |
1961 | ||
1962 | XSETINT (num, XFASTINT (num) + 1); | |
1963 | return num; | |
1964 | } | |
1965 | ||
1966 | DEFUN ("1-", Fsub1, Ssub1, 1, 1, 0, | |
1967 | "Return NUMBER minus one. NUMBER may be a number or a marker.\n\ | |
1968 | Markers are converted to integers.") | |
1969 | (num) | |
1970 | register Lisp_Object num; | |
1971 | { | |
1972 | #ifdef LISP_FLOAT_TYPE | |
1973 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num, 0); | |
1974 | ||
1975 | if (XTYPE (num) == Lisp_Float) | |
1976 | return (make_float (-1.0 + XFLOAT (num)->data)); | |
1977 | #else | |
1978 | CHECK_NUMBER_COERCE_MARKER (num, 0); | |
1979 | #endif /* LISP_FLOAT_TYPE */ | |
1980 | ||
1981 | XSETINT (num, XFASTINT (num) - 1); | |
1982 | return num; | |
1983 | } | |
1984 | ||
1985 | DEFUN ("lognot", Flognot, Slognot, 1, 1, 0, | |
1986 | "Return the bitwise complement of ARG. ARG must be an integer.") | |
1987 | (num) | |
1988 | register Lisp_Object num; | |
1989 | { | |
1990 | CHECK_NUMBER (num, 0); | |
1991 | XSETINT (num, ~XFASTINT (num)); | |
1992 | return num; | |
1993 | } | |
1994 | \f | |
1995 | void | |
1996 | syms_of_data () | |
1997 | { | |
6315e761 RS |
1998 | Lisp_Object error_tail, arith_tail; |
1999 | ||
7921925c JB |
2000 | Qquote = intern ("quote"); |
2001 | Qlambda = intern ("lambda"); | |
2002 | Qsubr = intern ("subr"); | |
2003 | Qerror_conditions = intern ("error-conditions"); | |
2004 | Qerror_message = intern ("error-message"); | |
2005 | Qtop_level = intern ("top-level"); | |
2006 | ||
2007 | Qerror = intern ("error"); | |
2008 | Qquit = intern ("quit"); | |
2009 | Qwrong_type_argument = intern ("wrong-type-argument"); | |
2010 | Qargs_out_of_range = intern ("args-out-of-range"); | |
2011 | Qvoid_function = intern ("void-function"); | |
ffd56f97 | 2012 | Qcyclic_function_indirection = intern ("cyclic-function-indirection"); |
7921925c JB |
2013 | Qvoid_variable = intern ("void-variable"); |
2014 | Qsetting_constant = intern ("setting-constant"); | |
2015 | Qinvalid_read_syntax = intern ("invalid-read-syntax"); | |
2016 | ||
2017 | Qinvalid_function = intern ("invalid-function"); | |
2018 | Qwrong_number_of_arguments = intern ("wrong-number-of-arguments"); | |
2019 | Qno_catch = intern ("no-catch"); | |
2020 | Qend_of_file = intern ("end-of-file"); | |
2021 | Qarith_error = intern ("arith-error"); | |
2022 | Qbeginning_of_buffer = intern ("beginning-of-buffer"); | |
2023 | Qend_of_buffer = intern ("end-of-buffer"); | |
2024 | Qbuffer_read_only = intern ("buffer-read-only"); | |
3b8819d6 | 2025 | Qmark_inactive = intern ("mark-inactive"); |
7921925c JB |
2026 | |
2027 | Qlistp = intern ("listp"); | |
2028 | Qconsp = intern ("consp"); | |
2029 | Qsymbolp = intern ("symbolp"); | |
2030 | Qintegerp = intern ("integerp"); | |
2031 | Qnatnump = intern ("natnump"); | |
8e86942b | 2032 | Qwholenump = intern ("wholenump"); |
7921925c JB |
2033 | Qstringp = intern ("stringp"); |
2034 | Qarrayp = intern ("arrayp"); | |
2035 | Qsequencep = intern ("sequencep"); | |
2036 | Qbufferp = intern ("bufferp"); | |
2037 | Qvectorp = intern ("vectorp"); | |
2038 | Qchar_or_string_p = intern ("char-or-string-p"); | |
2039 | Qmarkerp = intern ("markerp"); | |
07bd8472 | 2040 | Qbuffer_or_string_p = intern ("buffer-or-string-p"); |
7921925c JB |
2041 | Qinteger_or_marker_p = intern ("integer-or-marker-p"); |
2042 | Qboundp = intern ("boundp"); | |
2043 | Qfboundp = intern ("fboundp"); | |
2044 | ||
2045 | #ifdef LISP_FLOAT_TYPE | |
2046 | Qfloatp = intern ("floatp"); | |
2047 | Qnumberp = intern ("numberp"); | |
2048 | Qnumber_or_marker_p = intern ("number-or-marker-p"); | |
2049 | #endif /* LISP_FLOAT_TYPE */ | |
2050 | ||
2051 | Qcdr = intern ("cdr"); | |
2052 | ||
6315e761 RS |
2053 | error_tail = Fcons (Qerror, Qnil); |
2054 | ||
7921925c JB |
2055 | /* ERROR is used as a signaler for random errors for which nothing else is right */ |
2056 | ||
2057 | Fput (Qerror, Qerror_conditions, | |
6315e761 | 2058 | error_tail); |
7921925c JB |
2059 | Fput (Qerror, Qerror_message, |
2060 | build_string ("error")); | |
2061 | ||
2062 | Fput (Qquit, Qerror_conditions, | |
2063 | Fcons (Qquit, Qnil)); | |
2064 | Fput (Qquit, Qerror_message, | |
2065 | build_string ("Quit")); | |
2066 | ||
2067 | Fput (Qwrong_type_argument, Qerror_conditions, | |
6315e761 | 2068 | Fcons (Qwrong_type_argument, error_tail)); |
7921925c JB |
2069 | Fput (Qwrong_type_argument, Qerror_message, |
2070 | build_string ("Wrong type argument")); | |
2071 | ||
2072 | Fput (Qargs_out_of_range, Qerror_conditions, | |
6315e761 | 2073 | Fcons (Qargs_out_of_range, error_tail)); |
7921925c JB |
2074 | Fput (Qargs_out_of_range, Qerror_message, |
2075 | build_string ("Args out of range")); | |
2076 | ||
2077 | Fput (Qvoid_function, Qerror_conditions, | |
6315e761 | 2078 | Fcons (Qvoid_function, error_tail)); |
7921925c JB |
2079 | Fput (Qvoid_function, Qerror_message, |
2080 | build_string ("Symbol's function definition is void")); | |
2081 | ||
ffd56f97 | 2082 | Fput (Qcyclic_function_indirection, Qerror_conditions, |
6315e761 | 2083 | Fcons (Qcyclic_function_indirection, error_tail)); |
ffd56f97 JB |
2084 | Fput (Qcyclic_function_indirection, Qerror_message, |
2085 | build_string ("Symbol's chain of function indirections contains a loop")); | |
2086 | ||
7921925c | 2087 | Fput (Qvoid_variable, Qerror_conditions, |
6315e761 | 2088 | Fcons (Qvoid_variable, error_tail)); |
7921925c JB |
2089 | Fput (Qvoid_variable, Qerror_message, |
2090 | build_string ("Symbol's value as variable is void")); | |
2091 | ||
2092 | Fput (Qsetting_constant, Qerror_conditions, | |
6315e761 | 2093 | Fcons (Qsetting_constant, error_tail)); |
7921925c JB |
2094 | Fput (Qsetting_constant, Qerror_message, |
2095 | build_string ("Attempt to set a constant symbol")); | |
2096 | ||
2097 | Fput (Qinvalid_read_syntax, Qerror_conditions, | |
6315e761 | 2098 | Fcons (Qinvalid_read_syntax, error_tail)); |
7921925c JB |
2099 | Fput (Qinvalid_read_syntax, Qerror_message, |
2100 | build_string ("Invalid read syntax")); | |
2101 | ||
2102 | Fput (Qinvalid_function, Qerror_conditions, | |
6315e761 | 2103 | Fcons (Qinvalid_function, error_tail)); |
7921925c JB |
2104 | Fput (Qinvalid_function, Qerror_message, |
2105 | build_string ("Invalid function")); | |
2106 | ||
2107 | Fput (Qwrong_number_of_arguments, Qerror_conditions, | |
6315e761 | 2108 | Fcons (Qwrong_number_of_arguments, error_tail)); |
7921925c JB |
2109 | Fput (Qwrong_number_of_arguments, Qerror_message, |
2110 | build_string ("Wrong number of arguments")); | |
2111 | ||
2112 | Fput (Qno_catch, Qerror_conditions, | |
6315e761 | 2113 | Fcons (Qno_catch, error_tail)); |
7921925c JB |
2114 | Fput (Qno_catch, Qerror_message, |
2115 | build_string ("No catch for tag")); | |
2116 | ||
2117 | Fput (Qend_of_file, Qerror_conditions, | |
6315e761 | 2118 | Fcons (Qend_of_file, error_tail)); |
7921925c JB |
2119 | Fput (Qend_of_file, Qerror_message, |
2120 | build_string ("End of file during parsing")); | |
2121 | ||
6315e761 | 2122 | arith_tail = Fcons (Qarith_error, error_tail); |
7921925c | 2123 | Fput (Qarith_error, Qerror_conditions, |
6315e761 | 2124 | arith_tail); |
7921925c JB |
2125 | Fput (Qarith_error, Qerror_message, |
2126 | build_string ("Arithmetic error")); | |
2127 | ||
2128 | Fput (Qbeginning_of_buffer, Qerror_conditions, | |
6315e761 | 2129 | Fcons (Qbeginning_of_buffer, error_tail)); |
7921925c JB |
2130 | Fput (Qbeginning_of_buffer, Qerror_message, |
2131 | build_string ("Beginning of buffer")); | |
2132 | ||
2133 | Fput (Qend_of_buffer, Qerror_conditions, | |
6315e761 | 2134 | Fcons (Qend_of_buffer, error_tail)); |
7921925c JB |
2135 | Fput (Qend_of_buffer, Qerror_message, |
2136 | build_string ("End of buffer")); | |
2137 | ||
2138 | Fput (Qbuffer_read_only, Qerror_conditions, | |
6315e761 | 2139 | Fcons (Qbuffer_read_only, error_tail)); |
7921925c JB |
2140 | Fput (Qbuffer_read_only, Qerror_message, |
2141 | build_string ("Buffer is read-only")); | |
2142 | ||
6315e761 RS |
2143 | #ifdef LISP_FLOAT_TYPE |
2144 | Qrange_error = intern ("range-error"); | |
2145 | Qdomain_error = intern ("domain-error"); | |
2146 | Qsingularity_error = intern ("singularity-error"); | |
2147 | Qoverflow_error = intern ("overflow-error"); | |
2148 | Qunderflow_error = intern ("underflow-error"); | |
2149 | ||
2150 | Fput (Qdomain_error, Qerror_conditions, | |
2151 | Fcons (Qdomain_error, arith_tail)); | |
2152 | Fput (Qdomain_error, Qerror_message, | |
2153 | build_string ("Arithmetic domain error")); | |
2154 | ||
2155 | Fput (Qrange_error, Qerror_conditions, | |
2156 | Fcons (Qrange_error, arith_tail)); | |
2157 | Fput (Qrange_error, Qerror_message, | |
2158 | build_string ("Arithmetic range error")); | |
2159 | ||
2160 | Fput (Qsingularity_error, Qerror_conditions, | |
2161 | Fcons (Qsingularity_error, Fcons (Qdomain_error, arith_tail))); | |
2162 | Fput (Qsingularity_error, Qerror_message, | |
2163 | build_string ("Arithmetic singularity error")); | |
2164 | ||
2165 | Fput (Qoverflow_error, Qerror_conditions, | |
2166 | Fcons (Qoverflow_error, Fcons (Qdomain_error, arith_tail))); | |
2167 | Fput (Qoverflow_error, Qerror_message, | |
2168 | build_string ("Arithmetic overflow error")); | |
2169 | ||
2170 | Fput (Qunderflow_error, Qerror_conditions, | |
2171 | Fcons (Qunderflow_error, Fcons (Qdomain_error, arith_tail))); | |
2172 | Fput (Qunderflow_error, Qerror_message, | |
2173 | build_string ("Arithmetic underflow error")); | |
2174 | ||
2175 | staticpro (&Qrange_error); | |
2176 | staticpro (&Qdomain_error); | |
2177 | staticpro (&Qsingularity_error); | |
2178 | staticpro (&Qoverflow_error); | |
2179 | staticpro (&Qunderflow_error); | |
2180 | #endif /* LISP_FLOAT_TYPE */ | |
2181 | ||
7921925c JB |
2182 | staticpro (&Qnil); |
2183 | staticpro (&Qt); | |
2184 | staticpro (&Qquote); | |
2185 | staticpro (&Qlambda); | |
2186 | staticpro (&Qsubr); | |
2187 | staticpro (&Qunbound); | |
2188 | staticpro (&Qerror_conditions); | |
2189 | staticpro (&Qerror_message); | |
2190 | staticpro (&Qtop_level); | |
2191 | ||
2192 | staticpro (&Qerror); | |
2193 | staticpro (&Qquit); | |
2194 | staticpro (&Qwrong_type_argument); | |
2195 | staticpro (&Qargs_out_of_range); | |
2196 | staticpro (&Qvoid_function); | |
ffd56f97 | 2197 | staticpro (&Qcyclic_function_indirection); |
7921925c JB |
2198 | staticpro (&Qvoid_variable); |
2199 | staticpro (&Qsetting_constant); | |
2200 | staticpro (&Qinvalid_read_syntax); | |
2201 | staticpro (&Qwrong_number_of_arguments); | |
2202 | staticpro (&Qinvalid_function); | |
2203 | staticpro (&Qno_catch); | |
2204 | staticpro (&Qend_of_file); | |
2205 | staticpro (&Qarith_error); | |
2206 | staticpro (&Qbeginning_of_buffer); | |
2207 | staticpro (&Qend_of_buffer); | |
2208 | staticpro (&Qbuffer_read_only); | |
638b77e6 | 2209 | staticpro (&Qmark_inactive); |
7921925c JB |
2210 | |
2211 | staticpro (&Qlistp); | |
2212 | staticpro (&Qconsp); | |
2213 | staticpro (&Qsymbolp); | |
2214 | staticpro (&Qintegerp); | |
2215 | staticpro (&Qnatnump); | |
8e86942b | 2216 | staticpro (&Qwholenump); |
7921925c JB |
2217 | staticpro (&Qstringp); |
2218 | staticpro (&Qarrayp); | |
2219 | staticpro (&Qsequencep); | |
2220 | staticpro (&Qbufferp); | |
2221 | staticpro (&Qvectorp); | |
2222 | staticpro (&Qchar_or_string_p); | |
2223 | staticpro (&Qmarkerp); | |
07bd8472 | 2224 | staticpro (&Qbuffer_or_string_p); |
7921925c JB |
2225 | staticpro (&Qinteger_or_marker_p); |
2226 | #ifdef LISP_FLOAT_TYPE | |
2227 | staticpro (&Qfloatp); | |
464f8898 RS |
2228 | staticpro (&Qnumberp); |
2229 | staticpro (&Qnumber_or_marker_p); | |
7921925c JB |
2230 | #endif /* LISP_FLOAT_TYPE */ |
2231 | ||
2232 | staticpro (&Qboundp); | |
2233 | staticpro (&Qfboundp); | |
2234 | staticpro (&Qcdr); | |
2235 | ||
2236 | defsubr (&Seq); | |
2237 | defsubr (&Snull); | |
2238 | defsubr (&Slistp); | |
2239 | defsubr (&Snlistp); | |
2240 | defsubr (&Sconsp); | |
2241 | defsubr (&Satom); | |
2242 | defsubr (&Sintegerp); | |
464f8898 | 2243 | defsubr (&Sinteger_or_marker_p); |
7921925c JB |
2244 | defsubr (&Snumberp); |
2245 | defsubr (&Snumber_or_marker_p); | |
464f8898 RS |
2246 | #ifdef LISP_FLOAT_TYPE |
2247 | defsubr (&Sfloatp); | |
7921925c JB |
2248 | #endif /* LISP_FLOAT_TYPE */ |
2249 | defsubr (&Snatnump); | |
2250 | defsubr (&Ssymbolp); | |
2251 | defsubr (&Sstringp); | |
2252 | defsubr (&Svectorp); | |
2253 | defsubr (&Sarrayp); | |
2254 | defsubr (&Ssequencep); | |
2255 | defsubr (&Sbufferp); | |
2256 | defsubr (&Smarkerp); | |
7921925c | 2257 | defsubr (&Ssubrp); |
dbc4e1c1 | 2258 | defsubr (&Sbyte_code_function_p); |
7921925c JB |
2259 | defsubr (&Schar_or_string_p); |
2260 | defsubr (&Scar); | |
2261 | defsubr (&Scdr); | |
2262 | defsubr (&Scar_safe); | |
2263 | defsubr (&Scdr_safe); | |
2264 | defsubr (&Ssetcar); | |
2265 | defsubr (&Ssetcdr); | |
2266 | defsubr (&Ssymbol_function); | |
ffd56f97 | 2267 | defsubr (&Sindirect_function); |
7921925c JB |
2268 | defsubr (&Ssymbol_plist); |
2269 | defsubr (&Ssymbol_name); | |
2270 | defsubr (&Smakunbound); | |
2271 | defsubr (&Sfmakunbound); | |
2272 | defsubr (&Sboundp); | |
2273 | defsubr (&Sfboundp); | |
2274 | defsubr (&Sfset); | |
80df38a2 | 2275 | defsubr (&Sdefalias); |
d9bcdb34 | 2276 | defsubr (&Sdefine_function); |
7921925c JB |
2277 | defsubr (&Ssetplist); |
2278 | defsubr (&Ssymbol_value); | |
2279 | defsubr (&Sset); | |
2280 | defsubr (&Sdefault_boundp); | |
2281 | defsubr (&Sdefault_value); | |
2282 | defsubr (&Sset_default); | |
2283 | defsubr (&Ssetq_default); | |
2284 | defsubr (&Smake_variable_buffer_local); | |
2285 | defsubr (&Smake_local_variable); | |
2286 | defsubr (&Skill_local_variable); | |
2287 | defsubr (&Saref); | |
2288 | defsubr (&Saset); | |
f2980264 | 2289 | defsubr (&Snumber_to_string); |
25e40a4b | 2290 | defsubr (&Sstring_to_number); |
7921925c JB |
2291 | defsubr (&Seqlsign); |
2292 | defsubr (&Slss); | |
2293 | defsubr (&Sgtr); | |
2294 | defsubr (&Sleq); | |
2295 | defsubr (&Sgeq); | |
2296 | defsubr (&Sneq); | |
2297 | defsubr (&Szerop); | |
2298 | defsubr (&Splus); | |
2299 | defsubr (&Sminus); | |
2300 | defsubr (&Stimes); | |
2301 | defsubr (&Squo); | |
2302 | defsubr (&Srem); | |
44fa9da5 | 2303 | defsubr (&Smod); |
7921925c JB |
2304 | defsubr (&Smax); |
2305 | defsubr (&Smin); | |
2306 | defsubr (&Slogand); | |
2307 | defsubr (&Slogior); | |
2308 | defsubr (&Slogxor); | |
2309 | defsubr (&Slsh); | |
2310 | defsubr (&Sash); | |
2311 | defsubr (&Sadd1); | |
2312 | defsubr (&Ssub1); | |
2313 | defsubr (&Slognot); | |
8e86942b RS |
2314 | |
2315 | Fset (Qwholenump, Qnatnump); | |
7921925c JB |
2316 | } |
2317 | ||
a33ef3ab | 2318 | SIGTYPE |
7921925c JB |
2319 | arith_error (signo) |
2320 | int signo; | |
2321 | { | |
2322 | #ifdef USG | |
2323 | /* USG systems forget handlers when they are used; | |
2324 | must reestablish each time */ | |
2325 | signal (signo, arith_error); | |
2326 | #endif /* USG */ | |
2327 | #ifdef VMS | |
2328 | /* VMS systems are like USG. */ | |
2329 | signal (signo, arith_error); | |
2330 | #endif /* VMS */ | |
2331 | #ifdef BSD4_1 | |
2332 | sigrelse (SIGFPE); | |
2333 | #else /* not BSD4_1 */ | |
e065a56e | 2334 | sigsetmask (SIGEMPTYMASK); |
7921925c JB |
2335 | #endif /* not BSD4_1 */ |
2336 | ||
2337 | Fsignal (Qarith_error, Qnil); | |
2338 | } | |
2339 | ||
2340 | init_data () | |
2341 | { | |
2342 | /* Don't do this if just dumping out. | |
2343 | We don't want to call `signal' in this case | |
2344 | so that we don't have trouble with dumping | |
2345 | signal-delivering routines in an inconsistent state. */ | |
2346 | #ifndef CANNOT_DUMP | |
2347 | if (!initialized) | |
2348 | return; | |
2349 | #endif /* CANNOT_DUMP */ | |
2350 | signal (SIGFPE, arith_error); | |
f58b3686 | 2351 | |
7921925c JB |
2352 | #ifdef uts |
2353 | signal (SIGEMT, arith_error); | |
2354 | #endif /* uts */ | |
2355 | } |