Commit | Line | Data |
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7921925c | 1 | /* Primitive operations on Lisp data types for GNU Emacs Lisp interpreter. |
4a2f9c6a | 2 | Copyright (C) 1985,86,88,93,94,95,97, 1998 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> |
dd8daec5 | 25 | #include <stdio.h> |
7921925c | 26 | #include "lisp.h" |
29eab336 | 27 | #include "puresize.h" |
8313c4e7 | 28 | #include "charset.h" |
7921925c JB |
29 | |
30 | #ifndef standalone | |
31 | #include "buffer.h" | |
077d751f | 32 | #include "keyboard.h" |
b0c2d1c6 | 33 | #include "frame.h" |
7921925c JB |
34 | #endif |
35 | ||
a44804c2 | 36 | #include "syssignal.h" |
fb8e9847 | 37 | |
7921925c | 38 | #ifdef LISP_FLOAT_TYPE |
defa77b5 | 39 | |
93b91208 JB |
40 | #ifdef STDC_HEADERS |
41 | #include <stdlib.h> | |
2f261542 | 42 | #include <float.h> |
93b91208 | 43 | #endif |
defa77b5 | 44 | |
ad8d56b9 PE |
45 | /* If IEEE_FLOATING_POINT isn't defined, default it from FLT_*. */ |
46 | #ifndef IEEE_FLOATING_POINT | |
47 | #if (FLT_RADIX == 2 && FLT_MANT_DIG == 24 \ | |
48 | && FLT_MIN_EXP == -125 && FLT_MAX_EXP == 128) | |
49 | #define IEEE_FLOATING_POINT 1 | |
50 | #else | |
51 | #define IEEE_FLOATING_POINT 0 | |
52 | #endif | |
53 | #endif | |
54 | ||
defa77b5 RS |
55 | /* Work around a problem that happens because math.h on hpux 7 |
56 | defines two static variables--which, in Emacs, are not really static, | |
57 | because `static' is defined as nothing. The problem is that they are | |
58 | here, in floatfns.c, and in lread.c. | |
59 | These macros prevent the name conflict. */ | |
60 | #if defined (HPUX) && !defined (HPUX8) | |
61 | #define _MAXLDBL data_c_maxldbl | |
62 | #define _NMAXLDBL data_c_nmaxldbl | |
63 | #endif | |
64 | ||
7921925c JB |
65 | #include <math.h> |
66 | #endif /* LISP_FLOAT_TYPE */ | |
67 | ||
024ec58f BF |
68 | #if !defined (atof) |
69 | extern double atof (); | |
70 | #endif /* !atof */ | |
71 | ||
5c5aad07 KH |
72 | /* Nonzero means it is an error to set a symbol whose name starts with |
73 | colon. */ | |
74 | int keyword_symbols_constant_flag; | |
75 | ||
7921925c JB |
76 | Lisp_Object Qnil, Qt, Qquote, Qlambda, Qsubr, Qunbound; |
77 | Lisp_Object Qerror_conditions, Qerror_message, Qtop_level; | |
78 | Lisp_Object Qerror, Qquit, Qwrong_type_argument, Qargs_out_of_range; | |
ffd56f97 | 79 | Lisp_Object Qvoid_variable, Qvoid_function, Qcyclic_function_indirection; |
7921925c JB |
80 | Lisp_Object Qsetting_constant, Qinvalid_read_syntax; |
81 | Lisp_Object Qinvalid_function, Qwrong_number_of_arguments, Qno_catch; | |
3b8819d6 | 82 | Lisp_Object Qend_of_file, Qarith_error, Qmark_inactive; |
7921925c | 83 | Lisp_Object Qbeginning_of_buffer, Qend_of_buffer, Qbuffer_read_only; |
8e86942b | 84 | Lisp_Object Qintegerp, Qnatnump, Qwholenump, Qsymbolp, Qlistp, Qconsp; |
7921925c JB |
85 | Lisp_Object Qstringp, Qarrayp, Qsequencep, Qbufferp; |
86 | Lisp_Object Qchar_or_string_p, Qmarkerp, Qinteger_or_marker_p, Qvectorp; | |
07bd8472 | 87 | Lisp_Object Qbuffer_or_string_p; |
7921925c | 88 | Lisp_Object Qboundp, Qfboundp; |
7f0edce7 | 89 | Lisp_Object Qchar_table_p, Qvector_or_char_table_p; |
39bcc759 | 90 | |
7921925c | 91 | Lisp_Object Qcdr; |
ab297811 | 92 | Lisp_Object Qad_advice_info, Qad_activate; |
7921925c | 93 | |
6315e761 RS |
94 | Lisp_Object Qrange_error, Qdomain_error, Qsingularity_error; |
95 | Lisp_Object Qoverflow_error, Qunderflow_error; | |
96 | ||
7921925c | 97 | #ifdef LISP_FLOAT_TYPE |
464f8898 | 98 | Lisp_Object Qfloatp; |
7921925c JB |
99 | Lisp_Object Qnumberp, Qnumber_or_marker_p; |
100 | #endif | |
101 | ||
39bcc759 | 102 | static Lisp_Object Qinteger, Qsymbol, Qstring, Qcons, Qmarker, Qoverlay; |
8313c4e7 KH |
103 | static Lisp_Object Qfloat, Qwindow_configuration, Qwindow; |
104 | Lisp_Object Qprocess; | |
39bcc759 | 105 | static Lisp_Object Qcompiled_function, Qbuffer, Qframe, Qvector; |
fc67d5be | 106 | static Lisp_Object Qchar_table, Qbool_vector; |
39bcc759 | 107 | |
7921925c JB |
108 | static Lisp_Object swap_in_symval_forwarding (); |
109 | ||
d02eeab3 KH |
110 | Lisp_Object set_internal (); |
111 | ||
7921925c JB |
112 | Lisp_Object |
113 | wrong_type_argument (predicate, value) | |
114 | register Lisp_Object predicate, value; | |
115 | { | |
116 | register Lisp_Object tem; | |
117 | do | |
118 | { | |
119 | if (!EQ (Vmocklisp_arguments, Qt)) | |
120 | { | |
e9ebc175 | 121 | if (STRINGP (value) && |
7921925c | 122 | (EQ (predicate, Qintegerp) || EQ (predicate, Qinteger_or_marker_p))) |
3883fbeb | 123 | return Fstring_to_number (value, Qnil); |
e9ebc175 | 124 | if (INTEGERP (value) && EQ (predicate, Qstringp)) |
f2980264 | 125 | return Fnumber_to_string (value); |
7921925c | 126 | } |
e1351ff7 RS |
127 | |
128 | /* If VALUE is not even a valid Lisp object, abort here | |
129 | where we can get a backtrace showing where it came from. */ | |
04be3993 | 130 | if ((unsigned int) XGCTYPE (value) >= Lisp_Type_Limit) |
e1351ff7 RS |
131 | abort (); |
132 | ||
7921925c JB |
133 | value = Fsignal (Qwrong_type_argument, Fcons (predicate, Fcons (value, Qnil))); |
134 | tem = call1 (predicate, value); | |
135 | } | |
a33ef3ab | 136 | while (NILP (tem)); |
7921925c JB |
137 | return value; |
138 | } | |
139 | ||
dfcf069d | 140 | void |
7921925c JB |
141 | pure_write_error () |
142 | { | |
143 | error ("Attempt to modify read-only object"); | |
144 | } | |
145 | ||
146 | void | |
147 | args_out_of_range (a1, a2) | |
148 | Lisp_Object a1, a2; | |
149 | { | |
150 | while (1) | |
151 | Fsignal (Qargs_out_of_range, Fcons (a1, Fcons (a2, Qnil))); | |
152 | } | |
153 | ||
154 | void | |
155 | args_out_of_range_3 (a1, a2, a3) | |
156 | Lisp_Object a1, a2, a3; | |
157 | { | |
158 | while (1) | |
159 | Fsignal (Qargs_out_of_range, Fcons (a1, Fcons (a2, Fcons (a3, Qnil)))); | |
160 | } | |
161 | ||
7921925c JB |
162 | /* On some machines, XINT needs a temporary location. |
163 | Here it is, in case it is needed. */ | |
164 | ||
165 | int sign_extend_temp; | |
166 | ||
167 | /* On a few machines, XINT can only be done by calling this. */ | |
168 | ||
169 | int | |
170 | sign_extend_lisp_int (num) | |
a0ed95ea | 171 | EMACS_INT num; |
7921925c | 172 | { |
a0ed95ea RS |
173 | if (num & (((EMACS_INT) 1) << (VALBITS - 1))) |
174 | return num | (((EMACS_INT) (-1)) << VALBITS); | |
7921925c | 175 | else |
a0ed95ea | 176 | return num & ((((EMACS_INT) 1) << VALBITS) - 1); |
7921925c JB |
177 | } |
178 | \f | |
179 | /* Data type predicates */ | |
180 | ||
181 | DEFUN ("eq", Feq, Seq, 2, 2, 0, | |
c2124165 | 182 | "Return t if the two args are the same Lisp object.") |
7921925c JB |
183 | (obj1, obj2) |
184 | Lisp_Object obj1, obj2; | |
185 | { | |
186 | if (EQ (obj1, obj2)) | |
187 | return Qt; | |
188 | return Qnil; | |
189 | } | |
190 | ||
c2124165 | 191 | DEFUN ("null", Fnull, Snull, 1, 1, 0, "Return t if OBJECT is nil.") |
39bcc759 RS |
192 | (object) |
193 | Lisp_Object object; | |
7921925c | 194 | { |
39bcc759 | 195 | if (NILP (object)) |
7921925c JB |
196 | return Qt; |
197 | return Qnil; | |
198 | } | |
199 | ||
39bcc759 RS |
200 | DEFUN ("type-of", Ftype_of, Stype_of, 1, 1, 0, |
201 | "Return a symbol representing the type of OBJECT.\n\ | |
202 | The symbol returned names the object's basic type;\n\ | |
203 | for example, (type-of 1) returns `integer'.") | |
204 | (object) | |
205 | Lisp_Object object; | |
206 | { | |
207 | switch (XGCTYPE (object)) | |
208 | { | |
209 | case Lisp_Int: | |
210 | return Qinteger; | |
211 | ||
212 | case Lisp_Symbol: | |
213 | return Qsymbol; | |
214 | ||
215 | case Lisp_String: | |
216 | return Qstring; | |
217 | ||
218 | case Lisp_Cons: | |
219 | return Qcons; | |
220 | ||
221 | case Lisp_Misc: | |
324a6eef | 222 | switch (XMISCTYPE (object)) |
39bcc759 RS |
223 | { |
224 | case Lisp_Misc_Marker: | |
225 | return Qmarker; | |
226 | case Lisp_Misc_Overlay: | |
227 | return Qoverlay; | |
228 | case Lisp_Misc_Float: | |
229 | return Qfloat; | |
230 | } | |
231 | abort (); | |
232 | ||
233 | case Lisp_Vectorlike: | |
234 | if (GC_WINDOW_CONFIGURATIONP (object)) | |
235 | return Qwindow_configuration; | |
236 | if (GC_PROCESSP (object)) | |
237 | return Qprocess; | |
238 | if (GC_WINDOWP (object)) | |
239 | return Qwindow; | |
240 | if (GC_SUBRP (object)) | |
241 | return Qsubr; | |
242 | if (GC_COMPILEDP (object)) | |
243 | return Qcompiled_function; | |
244 | if (GC_BUFFERP (object)) | |
245 | return Qbuffer; | |
fc67d5be KH |
246 | if (GC_CHAR_TABLE_P (object)) |
247 | return Qchar_table; | |
248 | if (GC_BOOL_VECTOR_P (object)) | |
249 | return Qbool_vector; | |
39bcc759 RS |
250 | if (GC_FRAMEP (object)) |
251 | return Qframe; | |
39bcc759 RS |
252 | return Qvector; |
253 | ||
254 | #ifdef LISP_FLOAT_TYPE | |
255 | case Lisp_Float: | |
256 | return Qfloat; | |
257 | #endif | |
258 | ||
259 | default: | |
260 | abort (); | |
261 | } | |
262 | } | |
263 | ||
c2124165 | 264 | DEFUN ("consp", Fconsp, Sconsp, 1, 1, 0, "Return t if OBJECT is a cons cell.") |
39bcc759 RS |
265 | (object) |
266 | Lisp_Object object; | |
7921925c | 267 | { |
39bcc759 | 268 | if (CONSP (object)) |
7921925c JB |
269 | return Qt; |
270 | return Qnil; | |
271 | } | |
272 | ||
25638b07 RS |
273 | DEFUN ("atom", Fatom, Satom, 1, 1, 0, |
274 | "Return t if OBJECT is not a cons cell. This includes nil.") | |
39bcc759 RS |
275 | (object) |
276 | Lisp_Object object; | |
7921925c | 277 | { |
39bcc759 | 278 | if (CONSP (object)) |
7921925c JB |
279 | return Qnil; |
280 | return Qt; | |
281 | } | |
282 | ||
25638b07 RS |
283 | DEFUN ("listp", Flistp, Slistp, 1, 1, 0, |
284 | "Return t if OBJECT is a list. This includes nil.") | |
39bcc759 RS |
285 | (object) |
286 | Lisp_Object object; | |
7921925c | 287 | { |
39bcc759 | 288 | if (CONSP (object) || NILP (object)) |
7921925c JB |
289 | return Qt; |
290 | return Qnil; | |
291 | } | |
292 | ||
25638b07 RS |
293 | DEFUN ("nlistp", Fnlistp, Snlistp, 1, 1, 0, |
294 | "Return t if OBJECT is not a list. Lists include nil.") | |
39bcc759 RS |
295 | (object) |
296 | Lisp_Object object; | |
7921925c | 297 | { |
39bcc759 | 298 | if (CONSP (object) || NILP (object)) |
7921925c JB |
299 | return Qnil; |
300 | return Qt; | |
301 | } | |
302 | \f | |
25638b07 RS |
303 | DEFUN ("symbolp", Fsymbolp, Ssymbolp, 1, 1, 0, |
304 | "Return t if OBJECT is a symbol.") | |
39bcc759 RS |
305 | (object) |
306 | Lisp_Object object; | |
7921925c | 307 | { |
39bcc759 | 308 | if (SYMBOLP (object)) |
7921925c JB |
309 | return Qt; |
310 | return Qnil; | |
311 | } | |
312 | ||
25638b07 RS |
313 | DEFUN ("vectorp", Fvectorp, Svectorp, 1, 1, 0, |
314 | "Return t if OBJECT is a vector.") | |
39bcc759 RS |
315 | (object) |
316 | Lisp_Object object; | |
7921925c | 317 | { |
39bcc759 | 318 | if (VECTORP (object)) |
7921925c JB |
319 | return Qt; |
320 | return Qnil; | |
321 | } | |
322 | ||
25638b07 RS |
323 | DEFUN ("stringp", Fstringp, Sstringp, 1, 1, 0, |
324 | "Return t if OBJECT is a string.") | |
39bcc759 RS |
325 | (object) |
326 | Lisp_Object object; | |
7921925c | 327 | { |
39bcc759 | 328 | if (STRINGP (object)) |
7921925c JB |
329 | return Qt; |
330 | return Qnil; | |
331 | } | |
332 | ||
25638b07 RS |
333 | DEFUN ("multibyte-string-p", Fmultibyte_string_p, Smultibyte_string_p, |
334 | 1, 1, 0, "Return t if OBJECT is a multibyte string.") | |
335 | (object) | |
336 | Lisp_Object object; | |
337 | { | |
338 | if (STRINGP (object) && STRING_MULTIBYTE (object)) | |
339 | return Qt; | |
340 | return Qnil; | |
341 | } | |
342 | ||
343 | DEFUN ("char-table-p", Fchar_table_p, Schar_table_p, 1, 1, 0, | |
344 | "Return t if OBJECT is a char-table.") | |
4d276982 RS |
345 | (object) |
346 | Lisp_Object object; | |
347 | { | |
348 | if (CHAR_TABLE_P (object)) | |
349 | return Qt; | |
350 | return Qnil; | |
351 | } | |
352 | ||
7f0edce7 RS |
353 | DEFUN ("vector-or-char-table-p", Fvector_or_char_table_p, |
354 | Svector_or_char_table_p, 1, 1, 0, | |
c2124165 | 355 | "Return t if OBJECT is a char-table or vector.") |
7f0edce7 RS |
356 | (object) |
357 | Lisp_Object object; | |
358 | { | |
359 | if (VECTORP (object) || CHAR_TABLE_P (object)) | |
360 | return Qt; | |
361 | return Qnil; | |
362 | } | |
363 | ||
c2124165 | 364 | DEFUN ("bool-vector-p", Fbool_vector_p, Sbool_vector_p, 1, 1, 0, "Return t if OBJECT is a bool-vector.") |
4d276982 RS |
365 | (object) |
366 | Lisp_Object object; | |
367 | { | |
368 | if (BOOL_VECTOR_P (object)) | |
369 | return Qt; | |
370 | return Qnil; | |
371 | } | |
372 | ||
c2124165 | 373 | DEFUN ("arrayp", Farrayp, Sarrayp, 1, 1, 0, "Return t if OBJECT is an array (string or vector).") |
39bcc759 RS |
374 | (object) |
375 | Lisp_Object object; | |
7921925c | 376 | { |
a9729926 RS |
377 | if (VECTORP (object) || STRINGP (object) |
378 | || CHAR_TABLE_P (object) || BOOL_VECTOR_P (object)) | |
7921925c JB |
379 | return Qt; |
380 | return Qnil; | |
381 | } | |
382 | ||
383 | DEFUN ("sequencep", Fsequencep, Ssequencep, 1, 1, 0, | |
c2124165 | 384 | "Return t if OBJECT is a sequence (list or array).") |
39bcc759 RS |
385 | (object) |
386 | register Lisp_Object object; | |
7921925c | 387 | { |
4d276982 RS |
388 | if (CONSP (object) || NILP (object) || VECTORP (object) || STRINGP (object) |
389 | || CHAR_TABLE_P (object) || BOOL_VECTOR_P (object)) | |
7921925c JB |
390 | return Qt; |
391 | return Qnil; | |
392 | } | |
393 | ||
c2124165 | 394 | DEFUN ("bufferp", Fbufferp, Sbufferp, 1, 1, 0, "Return t if OBJECT is an editor buffer.") |
39bcc759 RS |
395 | (object) |
396 | Lisp_Object object; | |
7921925c | 397 | { |
39bcc759 | 398 | if (BUFFERP (object)) |
7921925c JB |
399 | return Qt; |
400 | return Qnil; | |
401 | } | |
402 | ||
c2124165 | 403 | DEFUN ("markerp", Fmarkerp, Smarkerp, 1, 1, 0, "Return t if OBJECT is a marker (editor pointer).") |
39bcc759 RS |
404 | (object) |
405 | Lisp_Object object; | |
7921925c | 406 | { |
39bcc759 | 407 | if (MARKERP (object)) |
7921925c JB |
408 | return Qt; |
409 | return Qnil; | |
410 | } | |
411 | ||
c2124165 | 412 | DEFUN ("subrp", Fsubrp, Ssubrp, 1, 1, 0, "Return t if OBJECT is a built-in function.") |
39bcc759 RS |
413 | (object) |
414 | Lisp_Object object; | |
7921925c | 415 | { |
39bcc759 | 416 | if (SUBRP (object)) |
7921925c JB |
417 | return Qt; |
418 | return Qnil; | |
419 | } | |
420 | ||
dbc4e1c1 | 421 | DEFUN ("byte-code-function-p", Fbyte_code_function_p, Sbyte_code_function_p, |
c2124165 | 422 | 1, 1, 0, "Return t if OBJECT is a byte-compiled function object.") |
39bcc759 RS |
423 | (object) |
424 | Lisp_Object object; | |
7921925c | 425 | { |
39bcc759 | 426 | if (COMPILEDP (object)) |
7921925c JB |
427 | return Qt; |
428 | return Qnil; | |
429 | } | |
430 | ||
0321d75c | 431 | DEFUN ("char-or-string-p", Fchar_or_string_p, Schar_or_string_p, 1, 1, 0, |
c2124165 | 432 | "Return t if OBJECT is a character (an integer) or a string.") |
39bcc759 RS |
433 | (object) |
434 | register Lisp_Object object; | |
7921925c | 435 | { |
39bcc759 | 436 | if (INTEGERP (object) || STRINGP (object)) |
7921925c JB |
437 | return Qt; |
438 | return Qnil; | |
439 | } | |
440 | \f | |
c2124165 | 441 | DEFUN ("integerp", Fintegerp, Sintegerp, 1, 1, 0, "Return t if OBJECT is an integer.") |
39bcc759 RS |
442 | (object) |
443 | Lisp_Object object; | |
7921925c | 444 | { |
39bcc759 | 445 | if (INTEGERP (object)) |
7921925c JB |
446 | return Qt; |
447 | return Qnil; | |
448 | } | |
449 | ||
464f8898 | 450 | DEFUN ("integer-or-marker-p", Finteger_or_marker_p, Sinteger_or_marker_p, 1, 1, 0, |
c2124165 | 451 | "Return t if OBJECT is an integer or a marker (editor pointer).") |
39bcc759 RS |
452 | (object) |
453 | register Lisp_Object object; | |
7921925c | 454 | { |
39bcc759 | 455 | if (MARKERP (object) || INTEGERP (object)) |
7921925c JB |
456 | return Qt; |
457 | return Qnil; | |
458 | } | |
459 | ||
0321d75c | 460 | DEFUN ("natnump", Fnatnump, Snatnump, 1, 1, 0, |
c2124165 | 461 | "Return t if OBJECT is a nonnegative integer.") |
39bcc759 RS |
462 | (object) |
463 | Lisp_Object object; | |
7921925c | 464 | { |
39bcc759 | 465 | if (NATNUMP (object)) |
7921925c JB |
466 | return Qt; |
467 | return Qnil; | |
468 | } | |
469 | ||
470 | DEFUN ("numberp", Fnumberp, Snumberp, 1, 1, 0, | |
c2124165 | 471 | "Return t if OBJECT is a number (floating point or integer).") |
39bcc759 RS |
472 | (object) |
473 | Lisp_Object object; | |
7921925c | 474 | { |
39bcc759 | 475 | if (NUMBERP (object)) |
7921925c | 476 | return Qt; |
dbc4e1c1 JB |
477 | else |
478 | return Qnil; | |
7921925c JB |
479 | } |
480 | ||
481 | DEFUN ("number-or-marker-p", Fnumber_or_marker_p, | |
482 | Snumber_or_marker_p, 1, 1, 0, | |
c2124165 | 483 | "Return t if OBJECT is a number or a marker.") |
39bcc759 RS |
484 | (object) |
485 | Lisp_Object object; | |
7921925c | 486 | { |
39bcc759 | 487 | if (NUMBERP (object) || MARKERP (object)) |
7921925c JB |
488 | return Qt; |
489 | return Qnil; | |
490 | } | |
464f8898 RS |
491 | |
492 | #ifdef LISP_FLOAT_TYPE | |
493 | DEFUN ("floatp", Ffloatp, Sfloatp, 1, 1, 0, | |
c2124165 | 494 | "Return t if OBJECT is a floating point number.") |
39bcc759 RS |
495 | (object) |
496 | Lisp_Object object; | |
464f8898 | 497 | { |
39bcc759 | 498 | if (FLOATP (object)) |
464f8898 RS |
499 | return Qt; |
500 | return Qnil; | |
501 | } | |
7921925c JB |
502 | #endif /* LISP_FLOAT_TYPE */ |
503 | \f | |
504 | /* Extract and set components of lists */ | |
505 | ||
506 | DEFUN ("car", Fcar, Scar, 1, 1, 0, | |
e1960a18 | 507 | "Return the car 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 `car-safe'.") |
509 | (list) | |
510 | register Lisp_Object list; | |
511 | { | |
512 | while (1) | |
513 | { | |
e9ebc175 | 514 | if (CONSP (list)) |
7921925c JB |
515 | return XCONS (list)->car; |
516 | else if (EQ (list, Qnil)) | |
517 | return Qnil; | |
518 | else | |
519 | list = wrong_type_argument (Qlistp, list); | |
520 | } | |
521 | } | |
522 | ||
523 | DEFUN ("car-safe", Fcar_safe, Scar_safe, 1, 1, 0, | |
524 | "Return the car of OBJECT if it is a cons cell, or else nil.") | |
525 | (object) | |
526 | Lisp_Object object; | |
527 | { | |
e9ebc175 | 528 | if (CONSP (object)) |
7921925c JB |
529 | return XCONS (object)->car; |
530 | else | |
531 | return Qnil; | |
532 | } | |
533 | ||
534 | DEFUN ("cdr", Fcdr, Scdr, 1, 1, 0, | |
e1960a18 | 535 | "Return the cdr of LIST. If arg is nil, return nil.\n\ |
7921925c JB |
536 | Error if arg is not nil and not a cons cell. See also `cdr-safe'.") |
537 | ||
538 | (list) | |
539 | register Lisp_Object list; | |
540 | { | |
541 | while (1) | |
542 | { | |
e9ebc175 | 543 | if (CONSP (list)) |
7921925c JB |
544 | return XCONS (list)->cdr; |
545 | else if (EQ (list, Qnil)) | |
546 | return Qnil; | |
547 | else | |
548 | list = wrong_type_argument (Qlistp, list); | |
549 | } | |
550 | } | |
551 | ||
552 | DEFUN ("cdr-safe", Fcdr_safe, Scdr_safe, 1, 1, 0, | |
b7abc8fa | 553 | "Return the cdr of OBJECT if it is a cons cell, or else nil.") |
7921925c JB |
554 | (object) |
555 | Lisp_Object object; | |
556 | { | |
e9ebc175 | 557 | if (CONSP (object)) |
7921925c JB |
558 | return XCONS (object)->cdr; |
559 | else | |
560 | return Qnil; | |
561 | } | |
562 | ||
563 | DEFUN ("setcar", Fsetcar, Ssetcar, 2, 2, 0, | |
e1960a18 | 564 | "Set the car of CELL to be NEWCAR. Returns NEWCAR.") |
7921925c JB |
565 | (cell, newcar) |
566 | register Lisp_Object cell, newcar; | |
567 | { | |
e9ebc175 | 568 | if (!CONSP (cell)) |
7921925c JB |
569 | cell = wrong_type_argument (Qconsp, cell); |
570 | ||
571 | CHECK_IMPURE (cell); | |
572 | XCONS (cell)->car = newcar; | |
573 | return newcar; | |
574 | } | |
575 | ||
576 | DEFUN ("setcdr", Fsetcdr, Ssetcdr, 2, 2, 0, | |
e1960a18 | 577 | "Set the cdr of CELL to be NEWCDR. Returns NEWCDR.") |
7921925c JB |
578 | (cell, newcdr) |
579 | register Lisp_Object cell, newcdr; | |
580 | { | |
e9ebc175 | 581 | if (!CONSP (cell)) |
7921925c JB |
582 | cell = wrong_type_argument (Qconsp, cell); |
583 | ||
584 | CHECK_IMPURE (cell); | |
585 | XCONS (cell)->cdr = newcdr; | |
586 | return newcdr; | |
587 | } | |
588 | \f | |
589 | /* Extract and set components of symbols */ | |
590 | ||
c2124165 | 591 | DEFUN ("boundp", Fboundp, Sboundp, 1, 1, 0, "Return t if SYMBOL's value is not void.") |
d9c2a0f2 EN |
592 | (symbol) |
593 | register Lisp_Object symbol; | |
7921925c JB |
594 | { |
595 | Lisp_Object valcontents; | |
d9c2a0f2 | 596 | CHECK_SYMBOL (symbol, 0); |
7921925c | 597 | |
d9c2a0f2 | 598 | valcontents = XSYMBOL (symbol)->value; |
7921925c | 599 | |
aabf6bec KH |
600 | if (BUFFER_LOCAL_VALUEP (valcontents) |
601 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 602 | valcontents = swap_in_symval_forwarding (symbol, valcontents); |
7921925c | 603 | |
1bfcade3 | 604 | return (EQ (valcontents, Qunbound) ? Qnil : Qt); |
7921925c JB |
605 | } |
606 | ||
c2124165 | 607 | DEFUN ("fboundp", Ffboundp, Sfboundp, 1, 1, 0, "Return t if SYMBOL's function definition is not void.") |
d9c2a0f2 EN |
608 | (symbol) |
609 | register Lisp_Object symbol; | |
7921925c | 610 | { |
d9c2a0f2 EN |
611 | CHECK_SYMBOL (symbol, 0); |
612 | return (EQ (XSYMBOL (symbol)->function, Qunbound) ? Qnil : Qt); | |
7921925c JB |
613 | } |
614 | ||
615 | DEFUN ("makunbound", Fmakunbound, Smakunbound, 1, 1, 0, "Make SYMBOL's value be void.") | |
d9c2a0f2 EN |
616 | (symbol) |
617 | register Lisp_Object symbol; | |
7921925c | 618 | { |
d9c2a0f2 | 619 | CHECK_SYMBOL (symbol, 0); |
5c5aad07 KH |
620 | if (NILP (symbol) || EQ (symbol, Qt) |
621 | || (XSYMBOL (symbol)->name->data[0] == ':' | |
899cb8f0 | 622 | && EQ (XSYMBOL (symbol)->obarray, initial_obarray) |
120821e1 | 623 | && keyword_symbols_constant_flag)) |
d9c2a0f2 EN |
624 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); |
625 | Fset (symbol, Qunbound); | |
626 | return symbol; | |
7921925c JB |
627 | } |
628 | ||
629 | DEFUN ("fmakunbound", Ffmakunbound, Sfmakunbound, 1, 1, 0, "Make SYMBOL's function definition be void.") | |
d9c2a0f2 EN |
630 | (symbol) |
631 | register Lisp_Object symbol; | |
7921925c | 632 | { |
d9c2a0f2 EN |
633 | CHECK_SYMBOL (symbol, 0); |
634 | if (NILP (symbol) || EQ (symbol, Qt)) | |
635 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); | |
636 | XSYMBOL (symbol)->function = Qunbound; | |
637 | return symbol; | |
7921925c JB |
638 | } |
639 | ||
640 | DEFUN ("symbol-function", Fsymbol_function, Ssymbol_function, 1, 1, 0, | |
641 | "Return SYMBOL's function definition. Error if that is void.") | |
ffd56f97 JB |
642 | (symbol) |
643 | register Lisp_Object symbol; | |
7921925c | 644 | { |
ffd56f97 JB |
645 | CHECK_SYMBOL (symbol, 0); |
646 | if (EQ (XSYMBOL (symbol)->function, Qunbound)) | |
647 | return Fsignal (Qvoid_function, Fcons (symbol, Qnil)); | |
648 | return XSYMBOL (symbol)->function; | |
7921925c JB |
649 | } |
650 | ||
651 | DEFUN ("symbol-plist", Fsymbol_plist, Ssymbol_plist, 1, 1, 0, "Return SYMBOL's property list.") | |
d9c2a0f2 EN |
652 | (symbol) |
653 | register Lisp_Object symbol; | |
7921925c | 654 | { |
d9c2a0f2 EN |
655 | CHECK_SYMBOL (symbol, 0); |
656 | return XSYMBOL (symbol)->plist; | |
7921925c JB |
657 | } |
658 | ||
659 | DEFUN ("symbol-name", Fsymbol_name, Ssymbol_name, 1, 1, 0, "Return SYMBOL's name, a string.") | |
d9c2a0f2 EN |
660 | (symbol) |
661 | register Lisp_Object symbol; | |
7921925c JB |
662 | { |
663 | register Lisp_Object name; | |
664 | ||
d9c2a0f2 EN |
665 | CHECK_SYMBOL (symbol, 0); |
666 | XSETSTRING (name, XSYMBOL (symbol)->name); | |
7921925c JB |
667 | return name; |
668 | } | |
669 | ||
670 | DEFUN ("fset", Ffset, Sfset, 2, 2, 0, | |
8c0b5540 RS |
671 | "Set SYMBOL's function definition to DEFINITION, and return DEFINITION.") |
672 | (symbol, definition) | |
673 | register Lisp_Object symbol, definition; | |
d9c2a0f2 EN |
674 | { |
675 | CHECK_SYMBOL (symbol, 0); | |
676 | if (NILP (symbol) || EQ (symbol, Qt)) | |
677 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); | |
678 | if (!NILP (Vautoload_queue) && !EQ (XSYMBOL (symbol)->function, Qunbound)) | |
679 | Vautoload_queue = Fcons (Fcons (symbol, XSYMBOL (symbol)->function), | |
7921925c | 680 | Vautoload_queue); |
8c0b5540 | 681 | XSYMBOL (symbol)->function = definition; |
f845f2c9 | 682 | /* Handle automatic advice activation */ |
d9c2a0f2 | 683 | if (CONSP (XSYMBOL (symbol)->plist) && !NILP (Fget (symbol, Qad_advice_info))) |
f845f2c9 | 684 | { |
d9c2a0f2 | 685 | call2 (Qad_activate, symbol, Qnil); |
8c0b5540 | 686 | definition = XSYMBOL (symbol)->function; |
f845f2c9 | 687 | } |
8c0b5540 | 688 | return definition; |
7921925c JB |
689 | } |
690 | ||
80df38a2 | 691 | DEFUN ("defalias", Fdefalias, Sdefalias, 2, 2, 0, |
73e0d965 | 692 | "Set SYMBOL's function definition to DEFINITION, and return DEFINITION.\n\ |
fc08c367 | 693 | Associates the function with the current load file, if any.") |
73e0d965 RS |
694 | (symbol, definition) |
695 | register Lisp_Object symbol, definition; | |
fc08c367 | 696 | { |
32f532b7 | 697 | definition = Ffset (symbol, definition); |
d9c2a0f2 | 698 | LOADHIST_ATTACH (symbol); |
73e0d965 | 699 | return definition; |
fc08c367 RS |
700 | } |
701 | ||
7921925c JB |
702 | DEFUN ("setplist", Fsetplist, Ssetplist, 2, 2, 0, |
703 | "Set SYMBOL's property list to NEWVAL, and return NEWVAL.") | |
d9c2a0f2 EN |
704 | (symbol, newplist) |
705 | register Lisp_Object symbol, newplist; | |
7921925c | 706 | { |
d9c2a0f2 EN |
707 | CHECK_SYMBOL (symbol, 0); |
708 | XSYMBOL (symbol)->plist = newplist; | |
7921925c JB |
709 | return newplist; |
710 | } | |
ffd56f97 | 711 | |
7921925c JB |
712 | \f |
713 | /* Getting and setting values of symbols */ | |
714 | ||
715 | /* Given the raw contents of a symbol value cell, | |
716 | return the Lisp value of the symbol. | |
717 | This does not handle buffer-local variables; use | |
718 | swap_in_symval_forwarding for that. */ | |
719 | ||
720 | Lisp_Object | |
721 | do_symval_forwarding (valcontents) | |
722 | register Lisp_Object valcontents; | |
723 | { | |
724 | register Lisp_Object val; | |
46b2ac21 KH |
725 | int offset; |
726 | if (MISCP (valcontents)) | |
324a6eef | 727 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
728 | { |
729 | case Lisp_Misc_Intfwd: | |
730 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
731 | return val; | |
7921925c | 732 | |
46b2ac21 KH |
733 | case Lisp_Misc_Boolfwd: |
734 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
7921925c | 735 | |
46b2ac21 KH |
736 | case Lisp_Misc_Objfwd: |
737 | return *XOBJFWD (valcontents)->objvar; | |
7921925c | 738 | |
46b2ac21 KH |
739 | case Lisp_Misc_Buffer_Objfwd: |
740 | offset = XBUFFER_OBJFWD (valcontents)->offset; | |
741 | return *(Lisp_Object *)(offset + (char *)current_buffer); | |
7403b5c8 | 742 | |
e5f8af9e KH |
743 | case Lisp_Misc_Kboard_Objfwd: |
744 | offset = XKBOARD_OBJFWD (valcontents)->offset; | |
745 | return *(Lisp_Object *)(offset + (char *)current_kboard); | |
46b2ac21 | 746 | } |
7921925c JB |
747 | return valcontents; |
748 | } | |
749 | ||
d9c2a0f2 EN |
750 | /* Store NEWVAL into SYMBOL, where VALCONTENTS is found in the value cell |
751 | of SYMBOL. If SYMBOL is buffer-local, VALCONTENTS should be the | |
7921925c JB |
752 | buffer-independent contents of the value cell: forwarded just one |
753 | step past the buffer-localness. */ | |
754 | ||
755 | void | |
d9c2a0f2 EN |
756 | store_symval_forwarding (symbol, valcontents, newval) |
757 | Lisp_Object symbol; | |
7921925c JB |
758 | register Lisp_Object valcontents, newval; |
759 | { | |
0220c518 | 760 | switch (SWITCH_ENUM_CAST (XTYPE (valcontents))) |
7921925c | 761 | { |
46b2ac21 | 762 | case Lisp_Misc: |
324a6eef | 763 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
764 | { |
765 | case Lisp_Misc_Intfwd: | |
766 | CHECK_NUMBER (newval, 1); | |
767 | *XINTFWD (valcontents)->intvar = XINT (newval); | |
e6c82a8d RS |
768 | if (*XINTFWD (valcontents)->intvar != XINT (newval)) |
769 | error ("Value out of range for variable `%s'", | |
d9c2a0f2 | 770 | XSYMBOL (symbol)->name->data); |
46b2ac21 KH |
771 | break; |
772 | ||
773 | case Lisp_Misc_Boolfwd: | |
774 | *XBOOLFWD (valcontents)->boolvar = NILP (newval) ? 0 : 1; | |
775 | break; | |
776 | ||
777 | case Lisp_Misc_Objfwd: | |
778 | *XOBJFWD (valcontents)->objvar = newval; | |
779 | break; | |
780 | ||
781 | case Lisp_Misc_Buffer_Objfwd: | |
782 | { | |
783 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
784 | Lisp_Object type; | |
785 | ||
786 | type = *(Lisp_Object *)(offset + (char *)&buffer_local_types); | |
984ef137 KH |
787 | if (XINT (type) == -1) |
788 | error ("Variable %s is read-only", XSYMBOL (symbol)->name->data); | |
789 | ||
46b2ac21 KH |
790 | if (! NILP (type) && ! NILP (newval) |
791 | && XTYPE (newval) != XINT (type)) | |
792 | buffer_slot_type_mismatch (offset); | |
793 | ||
794 | *(Lisp_Object *)(offset + (char *)current_buffer) = newval; | |
46b2ac21 | 795 | } |
7403b5c8 KH |
796 | break; |
797 | ||
e5f8af9e KH |
798 | case Lisp_Misc_Kboard_Objfwd: |
799 | (*(Lisp_Object *)((char *)current_kboard | |
800 | + XKBOARD_OBJFWD (valcontents)->offset)) | |
7403b5c8 KH |
801 | = newval; |
802 | break; | |
803 | ||
46b2ac21 KH |
804 | default: |
805 | goto def; | |
806 | } | |
7921925c JB |
807 | break; |
808 | ||
7921925c | 809 | default: |
46b2ac21 | 810 | def: |
d9c2a0f2 | 811 | valcontents = XSYMBOL (symbol)->value; |
e9ebc175 KH |
812 | if (BUFFER_LOCAL_VALUEP (valcontents) |
813 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
b0c2d1c6 | 814 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue = newval; |
7921925c | 815 | else |
d9c2a0f2 | 816 | XSYMBOL (symbol)->value = newval; |
7921925c JB |
817 | } |
818 | } | |
819 | ||
d9c2a0f2 | 820 | /* Set up the buffer-local symbol SYMBOL for validity in the current |
7921925c JB |
821 | buffer. VALCONTENTS is the contents of its value cell. |
822 | Return the value forwarded one step past the buffer-local indicator. */ | |
823 | ||
824 | static Lisp_Object | |
d9c2a0f2 EN |
825 | swap_in_symval_forwarding (symbol, valcontents) |
826 | Lisp_Object symbol, valcontents; | |
7921925c | 827 | { |
7403b5c8 | 828 | /* valcontents is a pointer to a struct resembling the cons |
7921925c | 829 | (REALVALUE BUFFER CURRENT-ALIST-ELEMENT . DEFAULT-VALUE)). |
7403b5c8 | 830 | |
7921925c | 831 | CURRENT-ALIST-ELEMENT is a pointer to an element of BUFFER's |
533984a8 JB |
832 | local_var_alist, that being the element whose car is this |
833 | variable. Or it can be a pointer to the | |
834 | (CURRENT-ALIST-ELEMENT . DEFAULT-VALUE), if BUFFER does not have | |
835 | an element in its alist for this variable. | |
836 | ||
837 | If the current buffer is not BUFFER, we store the current | |
838 | REALVALUE value into CURRENT-ALIST-ELEMENT, then find the | |
839 | appropriate alist element for the buffer now current and set up | |
840 | CURRENT-ALIST-ELEMENT. Then we set REALVALUE out of that | |
841 | element, and store into BUFFER. | |
842 | ||
7921925c JB |
843 | Note that REALVALUE can be a forwarding pointer. */ |
844 | ||
845 | register Lisp_Object tem1; | |
b0c2d1c6 | 846 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
7921925c | 847 | |
b0c2d1c6 | 848 | if (NILP (tem1) || current_buffer != XBUFFER (tem1) |
1cc04aed | 849 | || !EQ (selected_frame, XBUFFER_LOCAL_VALUE (valcontents)->frame)) |
7921925c | 850 | { |
b0c2d1c6 | 851 | tem1 = XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car; |
8d4afcac | 852 | Fsetcdr (tem1, |
b0c2d1c6 | 853 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); |
d9c2a0f2 | 854 | tem1 = assq_no_quit (symbol, current_buffer->local_var_alist); |
b0c2d1c6 RS |
855 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; |
856 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
a33ef3ab | 857 | if (NILP (tem1)) |
b0c2d1c6 RS |
858 | { |
859 | if (XBUFFER_LOCAL_VALUE (valcontents)->check_frame) | |
1cc04aed | 860 | tem1 = assq_no_quit (symbol, XFRAME (selected_frame)->param_alist); |
b0c2d1c6 RS |
861 | if (! NILP (tem1)) |
862 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 1; | |
863 | else | |
864 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
865 | } | |
866 | else | |
867 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 1; | |
868 | ||
869 | XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car = tem1; | |
870 | XSETBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer, current_buffer); | |
1cc04aed | 871 | XBUFFER_LOCAL_VALUE (valcontents)->frame = selected_frame; |
b0c2d1c6 RS |
872 | store_symval_forwarding (symbol, |
873 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue, | |
8d4afcac | 874 | Fcdr (tem1)); |
7921925c | 875 | } |
b0c2d1c6 | 876 | return XBUFFER_LOCAL_VALUE (valcontents)->realvalue; |
7921925c JB |
877 | } |
878 | \f | |
14e76af9 JB |
879 | /* Find the value of a symbol, returning Qunbound if it's not bound. |
880 | This is helpful for code which just wants to get a variable's value | |
8e6208c5 | 881 | if it has one, without signaling an error. |
14e76af9 JB |
882 | Note that it must not be possible to quit |
883 | within this function. Great care is required for this. */ | |
7921925c | 884 | |
14e76af9 | 885 | Lisp_Object |
d9c2a0f2 EN |
886 | find_symbol_value (symbol) |
887 | Lisp_Object symbol; | |
7921925c | 888 | { |
dd8daec5 | 889 | register Lisp_Object valcontents; |
7921925c | 890 | register Lisp_Object val; |
d9c2a0f2 EN |
891 | CHECK_SYMBOL (symbol, 0); |
892 | valcontents = XSYMBOL (symbol)->value; | |
7921925c | 893 | |
aabf6bec KH |
894 | if (BUFFER_LOCAL_VALUEP (valcontents) |
895 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 896 | valcontents = swap_in_symval_forwarding (symbol, valcontents); |
7921925c | 897 | |
536b772a KH |
898 | if (MISCP (valcontents)) |
899 | { | |
324a6eef | 900 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
901 | { |
902 | case Lisp_Misc_Intfwd: | |
903 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
904 | return val; | |
7921925c | 905 | |
46b2ac21 KH |
906 | case Lisp_Misc_Boolfwd: |
907 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
7921925c | 908 | |
46b2ac21 KH |
909 | case Lisp_Misc_Objfwd: |
910 | return *XOBJFWD (valcontents)->objvar; | |
7921925c | 911 | |
46b2ac21 KH |
912 | case Lisp_Misc_Buffer_Objfwd: |
913 | return *(Lisp_Object *)(XBUFFER_OBJFWD (valcontents)->offset | |
914 | + (char *)current_buffer); | |
7403b5c8 | 915 | |
e5f8af9e KH |
916 | case Lisp_Misc_Kboard_Objfwd: |
917 | return *(Lisp_Object *)(XKBOARD_OBJFWD (valcontents)->offset | |
918 | + (char *)current_kboard); | |
46b2ac21 | 919 | } |
7921925c JB |
920 | } |
921 | ||
922 | return valcontents; | |
923 | } | |
924 | ||
14e76af9 JB |
925 | DEFUN ("symbol-value", Fsymbol_value, Ssymbol_value, 1, 1, 0, |
926 | "Return SYMBOL's value. Error if that is void.") | |
d9c2a0f2 EN |
927 | (symbol) |
928 | Lisp_Object symbol; | |
14e76af9 | 929 | { |
0671d7c0 | 930 | Lisp_Object val; |
14e76af9 | 931 | |
d9c2a0f2 | 932 | val = find_symbol_value (symbol); |
14e76af9 | 933 | if (EQ (val, Qunbound)) |
d9c2a0f2 | 934 | return Fsignal (Qvoid_variable, Fcons (symbol, Qnil)); |
14e76af9 JB |
935 | else |
936 | return val; | |
937 | } | |
938 | ||
7921925c JB |
939 | DEFUN ("set", Fset, Sset, 2, 2, 0, |
940 | "Set SYMBOL's value to NEWVAL, and return NEWVAL.") | |
d9c2a0f2 EN |
941 | (symbol, newval) |
942 | register Lisp_Object symbol, newval; | |
05ef7169 RS |
943 | { |
944 | return set_internal (symbol, newval, 0); | |
945 | } | |
946 | ||
25638b07 | 947 | /* Store the value NEWVAL into SYMBOL. |
05ef7169 RS |
948 | If BINDFLAG is zero, then if this symbol is supposed to become |
949 | local in every buffer where it is set, then we make it local. | |
950 | If BINDFLAG is nonzero, we don't do that. */ | |
951 | ||
952 | Lisp_Object | |
953 | set_internal (symbol, newval, bindflag) | |
954 | register Lisp_Object symbol, newval; | |
955 | int bindflag; | |
7921925c | 956 | { |
1bfcade3 | 957 | int voide = EQ (newval, Qunbound); |
7921925c | 958 | |
7921925c | 959 | register Lisp_Object valcontents, tem1, current_alist_element; |
7921925c | 960 | |
d9c2a0f2 | 961 | CHECK_SYMBOL (symbol, 0); |
5c5aad07 KH |
962 | if (NILP (symbol) || EQ (symbol, Qt) |
963 | || (XSYMBOL (symbol)->name->data[0] == ':' | |
899cb8f0 | 964 | && EQ (XSYMBOL (symbol)->obarray, initial_obarray) |
120821e1 | 965 | && keyword_symbols_constant_flag && ! EQ (newval, symbol))) |
d9c2a0f2 EN |
966 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); |
967 | valcontents = XSYMBOL (symbol)->value; | |
7921925c | 968 | |
e9ebc175 | 969 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 970 | { |
46b2ac21 | 971 | register int idx = XBUFFER_OBJFWD (valcontents)->offset; |
865c050f KH |
972 | register int mask = XINT (*((Lisp_Object *) |
973 | (idx + (char *)&buffer_local_flags))); | |
33fa85e0 | 974 | if (mask > 0 && ! bindflag) |
7921925c JB |
975 | current_buffer->local_var_flags |= mask; |
976 | } | |
977 | ||
e9ebc175 KH |
978 | else if (BUFFER_LOCAL_VALUEP (valcontents) |
979 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c | 980 | { |
8d4afcac KH |
981 | /* valcontents is actually a pointer to a struct resembling a cons, |
982 | with contents something like: | |
d8cafeb5 JB |
983 | (REALVALUE BUFFER CURRENT-ALIST-ELEMENT . DEFAULT-VALUE). |
984 | ||
985 | BUFFER is the last buffer for which this symbol's value was | |
986 | made up to date. | |
987 | ||
988 | CURRENT-ALIST-ELEMENT is a pointer to an element of BUFFER's | |
989 | local_var_alist, that being the element whose car is this | |
990 | variable. Or it can be a pointer to the | |
991 | (CURRENT-ALIST-ELEMENT . DEFAULT-VALUE), if BUFFER does not | |
992 | have an element in its alist for this variable (that is, if | |
993 | BUFFER sees the default value of this variable). | |
994 | ||
995 | If we want to examine or set the value and BUFFER is current, | |
996 | we just examine or set REALVALUE. If BUFFER is not current, we | |
997 | store the current REALVALUE value into CURRENT-ALIST-ELEMENT, | |
998 | then find the appropriate alist element for the buffer now | |
999 | current and set up CURRENT-ALIST-ELEMENT. Then we set | |
1000 | REALVALUE out of that element, and store into BUFFER. | |
1001 | ||
1002 | If we are setting the variable and the current buffer does | |
1003 | not have an alist entry for this variable, an alist entry is | |
1004 | created. | |
1005 | ||
1006 | Note that REALVALUE can be a forwarding pointer. Each time | |
1007 | it is examined or set, forwarding must be done. */ | |
1008 | ||
1009 | /* What value are we caching right now? */ | |
b0c2d1c6 RS |
1010 | current_alist_element |
1011 | = XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car; | |
d8cafeb5 JB |
1012 | |
1013 | /* If the current buffer is not the buffer whose binding is | |
1014 | currently cached, or if it's a Lisp_Buffer_Local_Value and | |
1015 | we're looking at the default value, the cache is invalid; we | |
1016 | need to write it out, and find the new CURRENT-ALIST-ELEMENT. */ | |
b0c2d1c6 | 1017 | if (current_buffer != XBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer) |
1cc04aed | 1018 | || !EQ (selected_frame, XBUFFER_LOCAL_VALUE (valcontents)->frame) |
e9ebc175 | 1019 | || (BUFFER_LOCAL_VALUEP (valcontents) |
b06faa91 JB |
1020 | && EQ (XCONS (current_alist_element)->car, |
1021 | current_alist_element))) | |
7921925c | 1022 | { |
d8cafeb5 JB |
1023 | /* Write out the cached value for the old buffer; copy it |
1024 | back to its alist element. This works if the current | |
1025 | buffer only sees the default value, too. */ | |
1026 | Fsetcdr (current_alist_element, | |
b0c2d1c6 | 1027 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); |
7921925c | 1028 | |
d8cafeb5 | 1029 | /* Find the new value for CURRENT-ALIST-ELEMENT. */ |
d9c2a0f2 | 1030 | tem1 = Fassq (symbol, current_buffer->local_var_alist); |
b0c2d1c6 RS |
1031 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 1; |
1032 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; | |
1033 | ||
a33ef3ab | 1034 | if (NILP (tem1)) |
d8cafeb5 JB |
1035 | { |
1036 | /* This buffer still sees the default value. */ | |
1037 | ||
1038 | /* If the variable is a Lisp_Some_Buffer_Local_Value, | |
05ef7169 | 1039 | or if this is `let' rather than `set', |
d8cafeb5 JB |
1040 | make CURRENT-ALIST-ELEMENT point to itself, |
1041 | indicating that we're seeing the default value. */ | |
05ef7169 | 1042 | if (bindflag || SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
b0c2d1c6 RS |
1043 | { |
1044 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
1045 | ||
1046 | if (XBUFFER_LOCAL_VALUE (valcontents)->check_frame) | |
1cc04aed GM |
1047 | tem1 = Fassq (symbol, |
1048 | XFRAME (selected_frame)->param_alist); | |
d8cafeb5 | 1049 | |
b0c2d1c6 RS |
1050 | if (! NILP (tem1)) |
1051 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 1; | |
1052 | else | |
1053 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
1054 | } | |
05ef7169 RS |
1055 | /* If it's a Lisp_Buffer_Local_Value, being set not bound, |
1056 | give this buffer a new assoc for a local value and set | |
d8cafeb5 JB |
1057 | CURRENT-ALIST-ELEMENT to point to that. */ |
1058 | else | |
1059 | { | |
d9c2a0f2 | 1060 | tem1 = Fcons (symbol, Fcdr (current_alist_element)); |
b0c2d1c6 RS |
1061 | current_buffer->local_var_alist |
1062 | = Fcons (tem1, current_buffer->local_var_alist); | |
d8cafeb5 JB |
1063 | } |
1064 | } | |
b0c2d1c6 | 1065 | |
d8cafeb5 | 1066 | /* Cache the new buffer's assoc in CURRENT-ALIST-ELEMENT. */ |
b0c2d1c6 | 1067 | XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car |
8d4afcac | 1068 | = tem1; |
d8cafeb5 | 1069 | |
b0c2d1c6 RS |
1070 | /* Set BUFFER and FRAME for binding now loaded. */ |
1071 | XSETBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer, | |
8d4afcac | 1072 | current_buffer); |
1cc04aed | 1073 | XBUFFER_LOCAL_VALUE (valcontents)->frame = selected_frame; |
7921925c | 1074 | } |
b0c2d1c6 | 1075 | valcontents = XBUFFER_LOCAL_VALUE (valcontents)->realvalue; |
7921925c | 1076 | } |
d8cafeb5 | 1077 | |
7921925c JB |
1078 | /* If storing void (making the symbol void), forward only through |
1079 | buffer-local indicator, not through Lisp_Objfwd, etc. */ | |
1080 | if (voide) | |
d9c2a0f2 | 1081 | store_symval_forwarding (symbol, Qnil, newval); |
7921925c | 1082 | else |
d9c2a0f2 | 1083 | store_symval_forwarding (symbol, valcontents, newval); |
d8cafeb5 | 1084 | |
7921925c JB |
1085 | return newval; |
1086 | } | |
1087 | \f | |
1088 | /* Access or set a buffer-local symbol's default value. */ | |
1089 | ||
d9c2a0f2 | 1090 | /* Return the default value of SYMBOL, but don't check for voidness. |
1bfcade3 | 1091 | Return Qunbound if it is void. */ |
7921925c JB |
1092 | |
1093 | Lisp_Object | |
d9c2a0f2 EN |
1094 | default_value (symbol) |
1095 | Lisp_Object symbol; | |
7921925c JB |
1096 | { |
1097 | register Lisp_Object valcontents; | |
1098 | ||
d9c2a0f2 EN |
1099 | CHECK_SYMBOL (symbol, 0); |
1100 | valcontents = XSYMBOL (symbol)->value; | |
7921925c JB |
1101 | |
1102 | /* For a built-in buffer-local variable, get the default value | |
1103 | rather than letting do_symval_forwarding get the current value. */ | |
e9ebc175 | 1104 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1105 | { |
46b2ac21 | 1106 | register int idx = XBUFFER_OBJFWD (valcontents)->offset; |
7921925c | 1107 | |
865c050f | 1108 | if (XINT (*(Lisp_Object *) (idx + (char *) &buffer_local_flags)) != 0) |
7921925c JB |
1109 | return *(Lisp_Object *)(idx + (char *) &buffer_defaults); |
1110 | } | |
1111 | ||
1112 | /* Handle user-created local variables. */ | |
e9ebc175 KH |
1113 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1114 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c JB |
1115 | { |
1116 | /* If var is set up for a buffer that lacks a local value for it, | |
1117 | the current value is nominally the default value. | |
1118 | But the current value slot may be more up to date, since | |
1119 | ordinary setq stores just that slot. So use that. */ | |
1120 | Lisp_Object current_alist_element, alist_element_car; | |
1121 | current_alist_element | |
b0c2d1c6 | 1122 | = XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car; |
7921925c JB |
1123 | alist_element_car = XCONS (current_alist_element)->car; |
1124 | if (EQ (alist_element_car, current_alist_element)) | |
b0c2d1c6 | 1125 | return do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue); |
7921925c | 1126 | else |
b0c2d1c6 | 1127 | return XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr; |
7921925c JB |
1128 | } |
1129 | /* For other variables, get the current value. */ | |
1130 | return do_symval_forwarding (valcontents); | |
1131 | } | |
1132 | ||
1133 | DEFUN ("default-boundp", Fdefault_boundp, Sdefault_boundp, 1, 1, 0, | |
c2124165 | 1134 | "Return t if SYMBOL has a non-void default value.\n\ |
7921925c JB |
1135 | This is the value that is seen in buffers that do not have their own values\n\ |
1136 | for this variable.") | |
d9c2a0f2 EN |
1137 | (symbol) |
1138 | Lisp_Object symbol; | |
7921925c JB |
1139 | { |
1140 | register Lisp_Object value; | |
1141 | ||
d9c2a0f2 | 1142 | value = default_value (symbol); |
1bfcade3 | 1143 | return (EQ (value, Qunbound) ? Qnil : Qt); |
7921925c JB |
1144 | } |
1145 | ||
1146 | DEFUN ("default-value", Fdefault_value, Sdefault_value, 1, 1, 0, | |
1147 | "Return SYMBOL's default value.\n\ | |
1148 | This is the value that is seen in buffers that do not have their own values\n\ | |
1149 | for this variable. The default value is meaningful for variables with\n\ | |
1150 | local bindings in certain buffers.") | |
d9c2a0f2 EN |
1151 | (symbol) |
1152 | Lisp_Object symbol; | |
7921925c JB |
1153 | { |
1154 | register Lisp_Object value; | |
1155 | ||
d9c2a0f2 | 1156 | value = default_value (symbol); |
1bfcade3 | 1157 | if (EQ (value, Qunbound)) |
d9c2a0f2 | 1158 | return Fsignal (Qvoid_variable, Fcons (symbol, Qnil)); |
7921925c JB |
1159 | return value; |
1160 | } | |
1161 | ||
1162 | DEFUN ("set-default", Fset_default, Sset_default, 2, 2, 0, | |
1163 | "Set SYMBOL's default value to VAL. SYMBOL and VAL are evaluated.\n\ | |
1164 | The default value is seen in buffers that do not have their own values\n\ | |
1165 | for this variable.") | |
d9c2a0f2 EN |
1166 | (symbol, value) |
1167 | Lisp_Object symbol, value; | |
7921925c JB |
1168 | { |
1169 | register Lisp_Object valcontents, current_alist_element, alist_element_buffer; | |
1170 | ||
d9c2a0f2 EN |
1171 | CHECK_SYMBOL (symbol, 0); |
1172 | valcontents = XSYMBOL (symbol)->value; | |
7921925c JB |
1173 | |
1174 | /* Handle variables like case-fold-search that have special slots | |
1175 | in the buffer. Make them work apparently like Lisp_Buffer_Local_Value | |
1176 | variables. */ | |
e9ebc175 | 1177 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1178 | { |
46b2ac21 | 1179 | register int idx = XBUFFER_OBJFWD (valcontents)->offset; |
7921925c | 1180 | register struct buffer *b; |
865c050f KH |
1181 | register int mask = XINT (*((Lisp_Object *) |
1182 | (idx + (char *)&buffer_local_flags))); | |
7921925c | 1183 | |
984ef137 KH |
1184 | *(Lisp_Object *)(idx + (char *) &buffer_defaults) = value; |
1185 | ||
1186 | /* If this variable is not always local in all buffers, | |
1187 | set it in the buffers that don't nominally have a local value. */ | |
7921925c JB |
1188 | if (mask > 0) |
1189 | { | |
7921925c JB |
1190 | for (b = all_buffers; b; b = b->next) |
1191 | if (!(b->local_var_flags & mask)) | |
1192 | *(Lisp_Object *)(idx + (char *) b) = value; | |
1193 | } | |
1194 | return value; | |
1195 | } | |
1196 | ||
e9ebc175 KH |
1197 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1198 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 1199 | return Fset (symbol, value); |
7921925c JB |
1200 | |
1201 | /* Store new value into the DEFAULT-VALUE slot */ | |
b0c2d1c6 | 1202 | XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr = value; |
7921925c JB |
1203 | |
1204 | /* If that slot is current, we must set the REALVALUE slot too */ | |
8d4afcac | 1205 | current_alist_element |
b0c2d1c6 | 1206 | = XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car; |
7921925c JB |
1207 | alist_element_buffer = Fcar (current_alist_element); |
1208 | if (EQ (alist_element_buffer, current_alist_element)) | |
b0c2d1c6 | 1209 | store_symval_forwarding (symbol, XBUFFER_LOCAL_VALUE (valcontents)->realvalue, |
8d4afcac | 1210 | value); |
7921925c JB |
1211 | |
1212 | return value; | |
1213 | } | |
1214 | ||
1215 | DEFUN ("setq-default", Fsetq_default, Ssetq_default, 2, UNEVALLED, 0, | |
0412bf67 RS |
1216 | "Set the default value of variable VAR to VALUE.\n\ |
1217 | VAR, the variable name, is literal (not evaluated);\n\ | |
1218 | VALUE is an expression and it is evaluated.\n\ | |
1219 | The default value of a variable is seen in buffers\n\ | |
1220 | that do not have their own values for the variable.\n\ | |
1221 | \n\ | |
1222 | More generally, you can use multiple variables and values, as in\n\ | |
d9c2a0f2 EN |
1223 | (setq-default SYMBOL VALUE SYMBOL VALUE...)\n\ |
1224 | This sets each SYMBOL's default value to the corresponding VALUE.\n\ | |
1225 | The VALUE for the Nth SYMBOL can refer to the new default values\n\ | |
0412bf67 | 1226 | of previous SYMs.") |
7921925c JB |
1227 | (args) |
1228 | Lisp_Object args; | |
1229 | { | |
1230 | register Lisp_Object args_left; | |
d9c2a0f2 | 1231 | register Lisp_Object val, symbol; |
7921925c JB |
1232 | struct gcpro gcpro1; |
1233 | ||
a33ef3ab | 1234 | if (NILP (args)) |
7921925c JB |
1235 | return Qnil; |
1236 | ||
1237 | args_left = args; | |
1238 | GCPRO1 (args); | |
1239 | ||
1240 | do | |
1241 | { | |
1242 | val = Feval (Fcar (Fcdr (args_left))); | |
d9c2a0f2 EN |
1243 | symbol = Fcar (args_left); |
1244 | Fset_default (symbol, val); | |
7921925c JB |
1245 | args_left = Fcdr (Fcdr (args_left)); |
1246 | } | |
a33ef3ab | 1247 | while (!NILP (args_left)); |
7921925c JB |
1248 | |
1249 | UNGCPRO; | |
1250 | return val; | |
1251 | } | |
1252 | \f | |
a5ca2b75 JB |
1253 | /* Lisp functions for creating and removing buffer-local variables. */ |
1254 | ||
7921925c JB |
1255 | DEFUN ("make-variable-buffer-local", Fmake_variable_buffer_local, Smake_variable_buffer_local, |
1256 | 1, 1, "vMake Variable Buffer Local: ", | |
1257 | "Make VARIABLE have a separate value for each buffer.\n\ | |
1258 | At any time, the value for the current buffer is in effect.\n\ | |
1259 | There is also a default value which is seen in any buffer which has not yet\n\ | |
1260 | set its own value.\n\ | |
1261 | Using `set' or `setq' to set the variable causes it to have a separate value\n\ | |
1262 | for the current buffer if it was previously using the default value.\n\ | |
1263 | The function `default-value' gets the default value and `set-default' sets it.") | |
d9c2a0f2 EN |
1264 | (variable) |
1265 | register Lisp_Object variable; | |
7921925c | 1266 | { |
8d4afcac | 1267 | register Lisp_Object tem, valcontents, newval; |
7921925c | 1268 | |
d9c2a0f2 | 1269 | CHECK_SYMBOL (variable, 0); |
7921925c | 1270 | |
d9c2a0f2 EN |
1271 | valcontents = XSYMBOL (variable)->value; |
1272 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents)) | |
1273 | error ("Symbol %s may not be buffer-local", XSYMBOL (variable)->name->data); | |
7921925c | 1274 | |
e9ebc175 | 1275 | if (BUFFER_LOCAL_VALUEP (valcontents) || BUFFER_OBJFWDP (valcontents)) |
d9c2a0f2 | 1276 | return variable; |
e9ebc175 | 1277 | if (SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c | 1278 | { |
d9c2a0f2 EN |
1279 | XMISCTYPE (XSYMBOL (variable)->value) = Lisp_Misc_Buffer_Local_Value; |
1280 | return variable; | |
7921925c JB |
1281 | } |
1282 | if (EQ (valcontents, Qunbound)) | |
d9c2a0f2 EN |
1283 | XSYMBOL (variable)->value = Qnil; |
1284 | tem = Fcons (Qnil, Fsymbol_value (variable)); | |
7921925c | 1285 | XCONS (tem)->car = tem; |
8d4afcac | 1286 | newval = allocate_misc (); |
324a6eef | 1287 | XMISCTYPE (newval) = Lisp_Misc_Buffer_Local_Value; |
b0c2d1c6 RS |
1288 | XBUFFER_LOCAL_VALUE (newval)->realvalue = XSYMBOL (variable)->value; |
1289 | XBUFFER_LOCAL_VALUE (newval)->buffer = Fcurrent_buffer (); | |
1290 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
1291 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 1; | |
1292 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; | |
1293 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 0; | |
1294 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
d9c2a0f2 EN |
1295 | XSYMBOL (variable)->value = newval; |
1296 | return variable; | |
7921925c JB |
1297 | } |
1298 | ||
1299 | DEFUN ("make-local-variable", Fmake_local_variable, Smake_local_variable, | |
1300 | 1, 1, "vMake Local Variable: ", | |
1301 | "Make VARIABLE have a separate value in the current buffer.\n\ | |
1302 | Other buffers will continue to share a common default value.\n\ | |
a782f0d5 RS |
1303 | \(The buffer-local value of VARIABLE starts out as the same value\n\ |
1304 | VARIABLE previously had. If VARIABLE was void, it remains void.\)\n\ | |
05edf8bd KH |
1305 | See also `make-variable-buffer-local'.\n\ |
1306 | \n\ | |
7921925c JB |
1307 | If the variable is already arranged to become local when set,\n\ |
1308 | this function causes a local value to exist for this buffer,\n\ | |
62476adc RS |
1309 | just as setting the variable would do.\n\ |
1310 | \n\ | |
05edf8bd KH |
1311 | This function returns VARIABLE, and therefore\n\ |
1312 | (set (make-local-variable 'VARIABLE) VALUE-EXP)\n\ | |
1313 | works.\n\ | |
1314 | \n\ | |
62476adc RS |
1315 | Do not use `make-local-variable' to make a hook variable buffer-local.\n\ |
1316 | Use `make-local-hook' instead.") | |
d9c2a0f2 EN |
1317 | (variable) |
1318 | register Lisp_Object variable; | |
7921925c JB |
1319 | { |
1320 | register Lisp_Object tem, valcontents; | |
1321 | ||
d9c2a0f2 | 1322 | CHECK_SYMBOL (variable, 0); |
7921925c | 1323 | |
d9c2a0f2 EN |
1324 | valcontents = XSYMBOL (variable)->value; |
1325 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents)) | |
1326 | error ("Symbol %s may not be buffer-local", XSYMBOL (variable)->name->data); | |
7921925c | 1327 | |
e9ebc175 | 1328 | if (BUFFER_LOCAL_VALUEP (valcontents) || BUFFER_OBJFWDP (valcontents)) |
7921925c | 1329 | { |
d9c2a0f2 | 1330 | tem = Fboundp (variable); |
7403b5c8 | 1331 | |
7921925c JB |
1332 | /* Make sure the symbol has a local value in this particular buffer, |
1333 | by setting it to the same value it already has. */ | |
d9c2a0f2 EN |
1334 | Fset (variable, (EQ (tem, Qt) ? Fsymbol_value (variable) : Qunbound)); |
1335 | return variable; | |
7921925c | 1336 | } |
d9c2a0f2 | 1337 | /* Make sure symbol is set up to hold per-buffer values */ |
e9ebc175 | 1338 | if (!SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c | 1339 | { |
8d4afcac | 1340 | Lisp_Object newval; |
7921925c JB |
1341 | tem = Fcons (Qnil, do_symval_forwarding (valcontents)); |
1342 | XCONS (tem)->car = tem; | |
8d4afcac | 1343 | newval = allocate_misc (); |
324a6eef | 1344 | XMISCTYPE (newval) = Lisp_Misc_Some_Buffer_Local_Value; |
b0c2d1c6 RS |
1345 | XBUFFER_LOCAL_VALUE (newval)->realvalue = XSYMBOL (variable)->value; |
1346 | XBUFFER_LOCAL_VALUE (newval)->buffer = Qnil; | |
1347 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
1348 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; | |
1349 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; | |
1350 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 0; | |
1351 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
d9c2a0f2 | 1352 | XSYMBOL (variable)->value = newval; |
7921925c | 1353 | } |
d9c2a0f2 EN |
1354 | /* Make sure this buffer has its own value of symbol */ |
1355 | tem = Fassq (variable, current_buffer->local_var_alist); | |
a33ef3ab | 1356 | if (NILP (tem)) |
7921925c | 1357 | { |
a5d004a1 RS |
1358 | /* Swap out any local binding for some other buffer, and make |
1359 | sure the current value is permanently recorded, if it's the | |
1360 | default value. */ | |
d9c2a0f2 | 1361 | find_symbol_value (variable); |
a5d004a1 | 1362 | |
7921925c | 1363 | current_buffer->local_var_alist |
b0c2d1c6 | 1364 | = Fcons (Fcons (variable, XCONS (XBUFFER_LOCAL_VALUE (XSYMBOL (variable)->value)->cdr)->cdr), |
7921925c JB |
1365 | current_buffer->local_var_alist); |
1366 | ||
1367 | /* Make sure symbol does not think it is set up for this buffer; | |
1368 | force it to look once again for this buffer's value */ | |
1369 | { | |
8d4afcac | 1370 | Lisp_Object *pvalbuf; |
a5d004a1 | 1371 | |
d9c2a0f2 | 1372 | valcontents = XSYMBOL (variable)->value; |
a5d004a1 | 1373 | |
b0c2d1c6 | 1374 | pvalbuf = &XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
8d4afcac KH |
1375 | if (current_buffer == XBUFFER (*pvalbuf)) |
1376 | *pvalbuf = Qnil; | |
b0c2d1c6 | 1377 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; |
7921925c | 1378 | } |
7921925c | 1379 | } |
a5ca2b75 JB |
1380 | |
1381 | /* If the symbol forwards into a C variable, then swap in the | |
1382 | variable for this buffer immediately. If C code modifies the | |
1383 | variable before we swap in, then that new value will clobber the | |
1384 | default value the next time we swap. */ | |
b0c2d1c6 | 1385 | valcontents = XBUFFER_LOCAL_VALUE (XSYMBOL (variable)->value)->realvalue; |
e9ebc175 | 1386 | if (INTFWDP (valcontents) || BOOLFWDP (valcontents) || OBJFWDP (valcontents)) |
d9c2a0f2 | 1387 | swap_in_symval_forwarding (variable, XSYMBOL (variable)->value); |
a5ca2b75 | 1388 | |
d9c2a0f2 | 1389 | return variable; |
7921925c JB |
1390 | } |
1391 | ||
1392 | DEFUN ("kill-local-variable", Fkill_local_variable, Skill_local_variable, | |
1393 | 1, 1, "vKill Local Variable: ", | |
1394 | "Make VARIABLE no longer have a separate value in the current buffer.\n\ | |
1395 | From now on the default value will apply in this buffer.") | |
d9c2a0f2 EN |
1396 | (variable) |
1397 | register Lisp_Object variable; | |
7921925c JB |
1398 | { |
1399 | register Lisp_Object tem, valcontents; | |
1400 | ||
d9c2a0f2 | 1401 | CHECK_SYMBOL (variable, 0); |
7921925c | 1402 | |
d9c2a0f2 | 1403 | valcontents = XSYMBOL (variable)->value; |
7921925c | 1404 | |
e9ebc175 | 1405 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1406 | { |
46b2ac21 | 1407 | register int idx = XBUFFER_OBJFWD (valcontents)->offset; |
865c050f KH |
1408 | register int mask = XINT (*((Lisp_Object*) |
1409 | (idx + (char *)&buffer_local_flags))); | |
7921925c JB |
1410 | |
1411 | if (mask > 0) | |
1412 | { | |
1413 | *(Lisp_Object *)(idx + (char *) current_buffer) | |
1414 | = *(Lisp_Object *)(idx + (char *) &buffer_defaults); | |
1415 | current_buffer->local_var_flags &= ~mask; | |
1416 | } | |
d9c2a0f2 | 1417 | return variable; |
7921925c JB |
1418 | } |
1419 | ||
e9ebc175 KH |
1420 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1421 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 1422 | return variable; |
7921925c JB |
1423 | |
1424 | /* Get rid of this buffer's alist element, if any */ | |
1425 | ||
d9c2a0f2 | 1426 | tem = Fassq (variable, current_buffer->local_var_alist); |
a33ef3ab | 1427 | if (!NILP (tem)) |
8d4afcac KH |
1428 | current_buffer->local_var_alist |
1429 | = Fdelq (tem, current_buffer->local_var_alist); | |
7921925c | 1430 | |
79c83e03 KH |
1431 | /* If the symbol is set up for the current buffer, recompute its |
1432 | value. We have to do it now, or else forwarded objects won't | |
1433 | work right. */ | |
7921925c | 1434 | { |
8d4afcac | 1435 | Lisp_Object *pvalbuf; |
d9c2a0f2 | 1436 | valcontents = XSYMBOL (variable)->value; |
b0c2d1c6 | 1437 | pvalbuf = &XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
8d4afcac | 1438 | if (current_buffer == XBUFFER (*pvalbuf)) |
79c83e03 KH |
1439 | { |
1440 | *pvalbuf = Qnil; | |
b0c2d1c6 | 1441 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; |
978dd578 | 1442 | find_symbol_value (variable); |
79c83e03 | 1443 | } |
7921925c JB |
1444 | } |
1445 | ||
d9c2a0f2 | 1446 | return variable; |
7921925c | 1447 | } |
62476adc | 1448 | |
b0c2d1c6 RS |
1449 | /* Lisp functions for creating and removing buffer-local variables. */ |
1450 | ||
1451 | DEFUN ("make-variable-frame-local", Fmake_variable_frame_local, Smake_variable_frame_local, | |
1452 | 1, 1, "vMake Variable Frame Local: ", | |
37254ece RS |
1453 | "Enable VARIABLE to have frame-local bindings.\n\ |
1454 | When a frame-local binding exists in the current frame,\n\ | |
1455 | it is in effect whenever the current buffer has no buffer-local binding.\n\ | |
1456 | A frame-local binding is actual a frame parameter value;\n\ | |
1457 | thus, any given frame has a local binding for VARIABLE\n\ | |
1458 | if it has a value for the frame parameter named VARIABLE.\n\ | |
1459 | See `modify-frame-parameters'.") | |
8f152ad4 | 1460 | (variable) |
b0c2d1c6 RS |
1461 | register Lisp_Object variable; |
1462 | { | |
1463 | register Lisp_Object tem, valcontents, newval; | |
1464 | ||
1465 | CHECK_SYMBOL (variable, 0); | |
1466 | ||
1467 | valcontents = XSYMBOL (variable)->value; | |
1468 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents) | |
1469 | || BUFFER_OBJFWDP (valcontents)) | |
1470 | error ("Symbol %s may not be frame-local", XSYMBOL (variable)->name->data); | |
1471 | ||
1472 | if (BUFFER_LOCAL_VALUEP (valcontents) | |
1473 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
1474 | return variable; | |
1475 | ||
1476 | if (EQ (valcontents, Qunbound)) | |
1477 | XSYMBOL (variable)->value = Qnil; | |
1478 | tem = Fcons (Qnil, Fsymbol_value (variable)); | |
1479 | XCONS (tem)->car = tem; | |
1480 | newval = allocate_misc (); | |
1481 | XMISCTYPE (newval) = Lisp_Misc_Some_Buffer_Local_Value; | |
1482 | XBUFFER_LOCAL_VALUE (newval)->realvalue = XSYMBOL (variable)->value; | |
1483 | XBUFFER_LOCAL_VALUE (newval)->buffer = Qnil; | |
1484 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
1485 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; | |
1486 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; | |
1487 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 1; | |
1488 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
1489 | XSYMBOL (variable)->value = newval; | |
1490 | return variable; | |
1491 | } | |
1492 | ||
62476adc | 1493 | DEFUN ("local-variable-p", Flocal_variable_p, Slocal_variable_p, |
c48ead86 KH |
1494 | 1, 2, 0, |
1495 | "Non-nil if VARIABLE has a local binding in buffer BUFFER.\n\ | |
1496 | BUFFER defaults to the current buffer.") | |
d9c2a0f2 EN |
1497 | (variable, buffer) |
1498 | register Lisp_Object variable, buffer; | |
62476adc RS |
1499 | { |
1500 | Lisp_Object valcontents; | |
c48ead86 KH |
1501 | register struct buffer *buf; |
1502 | ||
1503 | if (NILP (buffer)) | |
1504 | buf = current_buffer; | |
1505 | else | |
1506 | { | |
1507 | CHECK_BUFFER (buffer, 0); | |
1508 | buf = XBUFFER (buffer); | |
1509 | } | |
62476adc | 1510 | |
d9c2a0f2 | 1511 | CHECK_SYMBOL (variable, 0); |
62476adc | 1512 | |
d9c2a0f2 | 1513 | valcontents = XSYMBOL (variable)->value; |
c48ead86 | 1514 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1e5f16fa | 1515 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
c48ead86 KH |
1516 | { |
1517 | Lisp_Object tail, elt; | |
1518 | for (tail = buf->local_var_alist; CONSP (tail); tail = XCONS (tail)->cdr) | |
1519 | { | |
1520 | elt = XCONS (tail)->car; | |
d9c2a0f2 | 1521 | if (EQ (variable, XCONS (elt)->car)) |
c48ead86 KH |
1522 | return Qt; |
1523 | } | |
1524 | } | |
1525 | if (BUFFER_OBJFWDP (valcontents)) | |
1526 | { | |
1527 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
1528 | int mask = XINT (*(Lisp_Object *)(offset + (char *)&buffer_local_flags)); | |
1529 | if (mask == -1 || (buf->local_var_flags & mask)) | |
1530 | return Qt; | |
1531 | } | |
1532 | return Qnil; | |
62476adc | 1533 | } |
f4f04cee RS |
1534 | |
1535 | DEFUN ("local-variable-if-set-p", Flocal_variable_if_set_p, Slocal_variable_if_set_p, | |
1536 | 1, 2, 0, | |
1537 | "Non-nil if VARIABLE will be local in buffer BUFFER if it is set there.\n\ | |
1538 | BUFFER defaults to the current buffer.") | |
d9c2a0f2 EN |
1539 | (variable, buffer) |
1540 | register Lisp_Object variable, buffer; | |
f4f04cee RS |
1541 | { |
1542 | Lisp_Object valcontents; | |
1543 | register struct buffer *buf; | |
1544 | ||
1545 | if (NILP (buffer)) | |
1546 | buf = current_buffer; | |
1547 | else | |
1548 | { | |
1549 | CHECK_BUFFER (buffer, 0); | |
1550 | buf = XBUFFER (buffer); | |
1551 | } | |
1552 | ||
d9c2a0f2 | 1553 | CHECK_SYMBOL (variable, 0); |
f4f04cee | 1554 | |
d9c2a0f2 | 1555 | valcontents = XSYMBOL (variable)->value; |
f4f04cee RS |
1556 | |
1557 | /* This means that make-variable-buffer-local was done. */ | |
1558 | if (BUFFER_LOCAL_VALUEP (valcontents)) | |
1559 | return Qt; | |
1560 | /* All these slots become local if they are set. */ | |
1561 | if (BUFFER_OBJFWDP (valcontents)) | |
1562 | return Qt; | |
1563 | if (SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
1564 | { | |
1565 | Lisp_Object tail, elt; | |
1566 | for (tail = buf->local_var_alist; CONSP (tail); tail = XCONS (tail)->cdr) | |
1567 | { | |
1568 | elt = XCONS (tail)->car; | |
d9c2a0f2 | 1569 | if (EQ (variable, XCONS (elt)->car)) |
f4f04cee RS |
1570 | return Qt; |
1571 | } | |
1572 | } | |
1573 | return Qnil; | |
1574 | } | |
7921925c | 1575 | \f |
ffd56f97 JB |
1576 | /* Find the function at the end of a chain of symbol function indirections. */ |
1577 | ||
1578 | /* If OBJECT is a symbol, find the end of its function chain and | |
1579 | return the value found there. If OBJECT is not a symbol, just | |
1580 | return it. If there is a cycle in the function chain, signal a | |
1581 | cyclic-function-indirection error. | |
1582 | ||
1583 | This is like Findirect_function, except that it doesn't signal an | |
1584 | error if the chain ends up unbound. */ | |
1585 | Lisp_Object | |
a2932990 | 1586 | indirect_function (object) |
62476adc | 1587 | register Lisp_Object object; |
ffd56f97 | 1588 | { |
eb8c3be9 | 1589 | Lisp_Object tortoise, hare; |
ffd56f97 | 1590 | |
eb8c3be9 | 1591 | hare = tortoise = object; |
ffd56f97 JB |
1592 | |
1593 | for (;;) | |
1594 | { | |
e9ebc175 | 1595 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
1596 | break; |
1597 | hare = XSYMBOL (hare)->function; | |
e9ebc175 | 1598 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
1599 | break; |
1600 | hare = XSYMBOL (hare)->function; | |
1601 | ||
eb8c3be9 | 1602 | tortoise = XSYMBOL (tortoise)->function; |
ffd56f97 | 1603 | |
eb8c3be9 | 1604 | if (EQ (hare, tortoise)) |
ffd56f97 JB |
1605 | Fsignal (Qcyclic_function_indirection, Fcons (object, Qnil)); |
1606 | } | |
1607 | ||
1608 | return hare; | |
1609 | } | |
1610 | ||
1611 | DEFUN ("indirect-function", Findirect_function, Sindirect_function, 1, 1, 0, | |
1612 | "Return the function at the end of OBJECT's function chain.\n\ | |
1613 | If OBJECT is a symbol, follow all function indirections and return the final\n\ | |
1614 | function binding.\n\ | |
1615 | If OBJECT is not a symbol, just return it.\n\ | |
1616 | Signal a void-function error if the final symbol is unbound.\n\ | |
1617 | Signal a cyclic-function-indirection error if there is a loop in the\n\ | |
1618 | function chain of symbols.") | |
1619 | (object) | |
1620 | register Lisp_Object object; | |
1621 | { | |
1622 | Lisp_Object result; | |
1623 | ||
1624 | result = indirect_function (object); | |
1625 | ||
1626 | if (EQ (result, Qunbound)) | |
1627 | return Fsignal (Qvoid_function, Fcons (object, Qnil)); | |
1628 | return result; | |
1629 | } | |
1630 | \f | |
7921925c JB |
1631 | /* Extract and set vector and string elements */ |
1632 | ||
1633 | DEFUN ("aref", Faref, Saref, 2, 2, 0, | |
d9c2a0f2 | 1634 | "Return the element of ARRAY at index IDX.\n\ |
4d276982 | 1635 | ARRAY may be a vector, a string, a char-table, a bool-vector,\n\ |
d9c2a0f2 | 1636 | or a byte-code object. IDX starts at 0.") |
7921925c JB |
1637 | (array, idx) |
1638 | register Lisp_Object array; | |
1639 | Lisp_Object idx; | |
1640 | { | |
1641 | register int idxval; | |
1642 | ||
1643 | CHECK_NUMBER (idx, 1); | |
1644 | idxval = XINT (idx); | |
e9ebc175 | 1645 | if (STRINGP (array)) |
7921925c | 1646 | { |
25638b07 RS |
1647 | int c, idxval_byte; |
1648 | ||
c24e4efe KH |
1649 | if (idxval < 0 || idxval >= XSTRING (array)->size) |
1650 | args_out_of_range (array, idx); | |
25638b07 RS |
1651 | if (! STRING_MULTIBYTE (array)) |
1652 | return make_number ((unsigned char) XSTRING (array)->data[idxval]); | |
1653 | idxval_byte = string_char_to_byte (array, idxval); | |
1654 | ||
1655 | c = STRING_CHAR (&XSTRING (array)->data[idxval_byte], | |
fc932ac6 | 1656 | STRING_BYTES (XSTRING (array)) - idxval_byte); |
25638b07 | 1657 | return make_number (c); |
7921925c | 1658 | } |
4d276982 RS |
1659 | else if (BOOL_VECTOR_P (array)) |
1660 | { | |
1661 | int val; | |
4d276982 RS |
1662 | |
1663 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
1664 | args_out_of_range (array, idx); | |
1665 | ||
68be917d KH |
1666 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BITS_PER_CHAR]; |
1667 | return (val & (1 << (idxval % BITS_PER_CHAR)) ? Qt : Qnil); | |
4d276982 RS |
1668 | } |
1669 | else if (CHAR_TABLE_P (array)) | |
1670 | { | |
1671 | Lisp_Object val; | |
1672 | ||
1673 | if (idxval < 0) | |
1674 | args_out_of_range (array, idx); | |
ab5c3f93 | 1675 | if (idxval < CHAR_TABLE_ORDINARY_SLOTS) |
8313c4e7 | 1676 | { |
39e16e51 | 1677 | /* For ASCII and 8-bit European characters, the element is |
3a6cf6bd | 1678 | stored in the top table. */ |
8313c4e7 KH |
1679 | val = XCHAR_TABLE (array)->contents[idxval]; |
1680 | if (NILP (val)) | |
1681 | val = XCHAR_TABLE (array)->defalt; | |
1682 | while (NILP (val)) /* Follow parents until we find some value. */ | |
1683 | { | |
1684 | array = XCHAR_TABLE (array)->parent; | |
1685 | if (NILP (array)) | |
1686 | return Qnil; | |
1687 | val = XCHAR_TABLE (array)->contents[idxval]; | |
1688 | if (NILP (val)) | |
1689 | val = XCHAR_TABLE (array)->defalt; | |
1690 | } | |
1691 | return val; | |
1692 | } | |
4d276982 RS |
1693 | else |
1694 | { | |
39e16e51 KH |
1695 | int code[4], i; |
1696 | Lisp_Object sub_table; | |
8313c4e7 | 1697 | |
39e16e51 KH |
1698 | SPLIT_NON_ASCII_CHAR (idxval, code[0], code[1], code[2]); |
1699 | if (code[0] != CHARSET_COMPOSITION) | |
1700 | { | |
1701 | if (code[1] < 32) code[1] = -1; | |
1702 | else if (code[2] < 32) code[2] = -1; | |
1703 | } | |
1704 | /* Here, the possible range of CODE[0] (== charset ID) is | |
1705 | 128..MAX_CHARSET. Since the top level char table contains | |
1706 | data for multibyte characters after 256th element, we must | |
1707 | increment CODE[0] by 128 to get a correct index. */ | |
1708 | code[0] += 128; | |
1709 | code[3] = -1; /* anchor */ | |
4d276982 RS |
1710 | |
1711 | try_parent_char_table: | |
39e16e51 KH |
1712 | sub_table = array; |
1713 | for (i = 0; code[i] >= 0; i++) | |
4d276982 | 1714 | { |
39e16e51 KH |
1715 | val = XCHAR_TABLE (sub_table)->contents[code[i]]; |
1716 | if (SUB_CHAR_TABLE_P (val)) | |
1717 | sub_table = val; | |
1718 | else | |
8313c4e7 | 1719 | { |
39e16e51 KH |
1720 | if (NILP (val)) |
1721 | val = XCHAR_TABLE (sub_table)->defalt; | |
1722 | if (NILP (val)) | |
1723 | { | |
1724 | array = XCHAR_TABLE (array)->parent; | |
1725 | if (!NILP (array)) | |
1726 | goto try_parent_char_table; | |
1727 | } | |
1728 | return val; | |
8313c4e7 | 1729 | } |
4d276982 | 1730 | } |
39e16e51 KH |
1731 | /* Here, VAL is a sub char table. We try the default value |
1732 | and parent. */ | |
1733 | val = XCHAR_TABLE (val)->defalt; | |
8313c4e7 | 1734 | if (NILP (val)) |
4d276982 RS |
1735 | { |
1736 | array = XCHAR_TABLE (array)->parent; | |
39e16e51 KH |
1737 | if (!NILP (array)) |
1738 | goto try_parent_char_table; | |
4d276982 | 1739 | } |
4d276982 RS |
1740 | return val; |
1741 | } | |
4d276982 | 1742 | } |
7921925c | 1743 | else |
c24e4efe | 1744 | { |
7f358972 RS |
1745 | int size; |
1746 | if (VECTORP (array)) | |
1747 | size = XVECTOR (array)->size; | |
1748 | else if (COMPILEDP (array)) | |
1749 | size = XVECTOR (array)->size & PSEUDOVECTOR_SIZE_MASK; | |
1750 | else | |
1751 | wrong_type_argument (Qarrayp, array); | |
1752 | ||
1753 | if (idxval < 0 || idxval >= size) | |
c24e4efe KH |
1754 | args_out_of_range (array, idx); |
1755 | return XVECTOR (array)->contents[idxval]; | |
1756 | } | |
7921925c JB |
1757 | } |
1758 | ||
1759 | DEFUN ("aset", Faset, Saset, 3, 3, 0, | |
73d40355 | 1760 | "Store into the element of ARRAY at index IDX the value NEWELT.\n\ |
9346f507 RS |
1761 | ARRAY may be a vector, a string, a char-table or a bool-vector.\n\ |
1762 | IDX starts at 0.") | |
7921925c JB |
1763 | (array, idx, newelt) |
1764 | register Lisp_Object array; | |
1765 | Lisp_Object idx, newelt; | |
1766 | { | |
1767 | register int idxval; | |
1768 | ||
1769 | CHECK_NUMBER (idx, 1); | |
1770 | idxval = XINT (idx); | |
4d276982 RS |
1771 | if (!VECTORP (array) && !STRINGP (array) && !BOOL_VECTOR_P (array) |
1772 | && ! CHAR_TABLE_P (array)) | |
7921925c | 1773 | array = wrong_type_argument (Qarrayp, array); |
7921925c JB |
1774 | CHECK_IMPURE (array); |
1775 | ||
e9ebc175 | 1776 | if (VECTORP (array)) |
c24e4efe KH |
1777 | { |
1778 | if (idxval < 0 || idxval >= XVECTOR (array)->size) | |
1779 | args_out_of_range (array, idx); | |
1780 | XVECTOR (array)->contents[idxval] = newelt; | |
1781 | } | |
4d276982 RS |
1782 | else if (BOOL_VECTOR_P (array)) |
1783 | { | |
1784 | int val; | |
4d276982 RS |
1785 | |
1786 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
1787 | args_out_of_range (array, idx); | |
1788 | ||
68be917d | 1789 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BITS_PER_CHAR]; |
4d276982 RS |
1790 | |
1791 | if (! NILP (newelt)) | |
68be917d | 1792 | val |= 1 << (idxval % BITS_PER_CHAR); |
4d276982 | 1793 | else |
68be917d KH |
1794 | val &= ~(1 << (idxval % BITS_PER_CHAR)); |
1795 | XBOOL_VECTOR (array)->data[idxval / BITS_PER_CHAR] = val; | |
4d276982 RS |
1796 | } |
1797 | else if (CHAR_TABLE_P (array)) | |
1798 | { | |
4d276982 RS |
1799 | if (idxval < 0) |
1800 | args_out_of_range (array, idx); | |
ab5c3f93 | 1801 | if (idxval < CHAR_TABLE_ORDINARY_SLOTS) |
8313c4e7 | 1802 | XCHAR_TABLE (array)->contents[idxval] = newelt; |
4d276982 RS |
1803 | else |
1804 | { | |
39e16e51 | 1805 | int code[4], i; |
8313c4e7 | 1806 | Lisp_Object val; |
4d276982 | 1807 | |
39e16e51 KH |
1808 | SPLIT_NON_ASCII_CHAR (idxval, code[0], code[1], code[2]); |
1809 | if (code[0] != CHARSET_COMPOSITION) | |
1810 | { | |
1811 | if (code[1] < 32) code[1] = -1; | |
1812 | else if (code[2] < 32) code[2] = -1; | |
1813 | } | |
1814 | /* See the comment of the corresponding part in Faref. */ | |
1815 | code[0] += 128; | |
1816 | code[3] = -1; /* anchor */ | |
1817 | for (i = 0; code[i + 1] >= 0; i++) | |
8313c4e7 | 1818 | { |
39e16e51 KH |
1819 | val = XCHAR_TABLE (array)->contents[code[i]]; |
1820 | if (SUB_CHAR_TABLE_P (val)) | |
8313c4e7 KH |
1821 | array = val; |
1822 | else | |
3c8fccc3 RS |
1823 | { |
1824 | Lisp_Object temp; | |
1825 | ||
1826 | /* VAL is a leaf. Create a sub char table with the | |
1827 | default value VAL or XCHAR_TABLE (array)->defalt | |
1828 | and look into it. */ | |
1829 | ||
1830 | temp = make_sub_char_table (NILP (val) | |
1831 | ? XCHAR_TABLE (array)->defalt | |
1832 | : val); | |
1833 | XCHAR_TABLE (array)->contents[code[i]] = temp; | |
1834 | array = temp; | |
1835 | } | |
8313c4e7 | 1836 | } |
39e16e51 | 1837 | XCHAR_TABLE (array)->contents[code[i]] = newelt; |
4d276982 | 1838 | } |
4d276982 | 1839 | } |
25638b07 RS |
1840 | else if (STRING_MULTIBYTE (array)) |
1841 | { | |
dd8daec5 | 1842 | int idxval_byte, new_len, actual_len; |
5e522af4 | 1843 | int prev_byte; |
dbda4aad | 1844 | unsigned char *p, workbuf[4], *str; |
25638b07 RS |
1845 | |
1846 | if (idxval < 0 || idxval >= XSTRING (array)->size) | |
1847 | args_out_of_range (array, idx); | |
1848 | ||
1849 | idxval_byte = string_char_to_byte (array, idxval); | |
ca2f68f8 | 1850 | p = &XSTRING (array)->data[idxval_byte]; |
25638b07 | 1851 | |
5e522af4 | 1852 | actual_len = MULTIBYTE_FORM_LENGTH (p, STRING_BYTES (XSTRING (array))); |
6d0b4fac | 1853 | CHECK_NUMBER (newelt, 2); |
dbda4aad | 1854 | new_len = CHAR_STRING (XINT (newelt), workbuf, str); |
6d0b4fac | 1855 | if (actual_len != new_len) |
ca2f68f8 | 1856 | error ("Attempt to change byte length of a string"); |
5e522af4 KH |
1857 | |
1858 | /* We can't accept a change causing byte combining. */ | |
a2603188 KH |
1859 | if (!ASCII_BYTE_P (*str) |
1860 | && ((idxval > 0 && !CHAR_HEAD_P (*str) | |
1861 | && (prev_byte = string_char_to_byte (array, idxval - 1), | |
1862 | BYTES_BY_CHAR_HEAD (XSTRING (array)->data[prev_byte]) | |
1863 | > idxval_byte - prev_byte)) | |
1864 | || (idxval < XSTRING (array)->size - 1 | |
1865 | && !CHAR_HEAD_P (p[actual_len]) | |
1866 | && new_len < BYTES_BY_CHAR_HEAD (*str)))) | |
5e522af4 | 1867 | error ("Attempt to change char length of a string"); |
dbda4aad KH |
1868 | while (new_len--) |
1869 | *p++ = *str++; | |
25638b07 | 1870 | } |
7921925c JB |
1871 | else |
1872 | { | |
c24e4efe KH |
1873 | if (idxval < 0 || idxval >= XSTRING (array)->size) |
1874 | args_out_of_range (array, idx); | |
7921925c JB |
1875 | CHECK_NUMBER (newelt, 2); |
1876 | XSTRING (array)->data[idxval] = XINT (newelt); | |
1877 | } | |
1878 | ||
1879 | return newelt; | |
1880 | } | |
7921925c JB |
1881 | \f |
1882 | /* Arithmetic functions */ | |
1883 | ||
1884 | enum comparison { equal, notequal, less, grtr, less_or_equal, grtr_or_equal }; | |
1885 | ||
1886 | Lisp_Object | |
1887 | arithcompare (num1, num2, comparison) | |
1888 | Lisp_Object num1, num2; | |
1889 | enum comparison comparison; | |
1890 | { | |
1891 | double f1, f2; | |
1892 | int floatp = 0; | |
1893 | ||
1894 | #ifdef LISP_FLOAT_TYPE | |
1895 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1, 0); | |
1896 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2, 0); | |
1897 | ||
e9ebc175 | 1898 | if (FLOATP (num1) || FLOATP (num2)) |
7921925c JB |
1899 | { |
1900 | floatp = 1; | |
e9ebc175 KH |
1901 | f1 = (FLOATP (num1)) ? XFLOAT (num1)->data : XINT (num1); |
1902 | f2 = (FLOATP (num2)) ? XFLOAT (num2)->data : XINT (num2); | |
7921925c JB |
1903 | } |
1904 | #else | |
1905 | CHECK_NUMBER_COERCE_MARKER (num1, 0); | |
1906 | CHECK_NUMBER_COERCE_MARKER (num2, 0); | |
1907 | #endif /* LISP_FLOAT_TYPE */ | |
1908 | ||
1909 | switch (comparison) | |
1910 | { | |
1911 | case equal: | |
1912 | if (floatp ? f1 == f2 : XINT (num1) == XINT (num2)) | |
1913 | return Qt; | |
1914 | return Qnil; | |
1915 | ||
1916 | case notequal: | |
1917 | if (floatp ? f1 != f2 : XINT (num1) != XINT (num2)) | |
1918 | return Qt; | |
1919 | return Qnil; | |
1920 | ||
1921 | case less: | |
1922 | if (floatp ? f1 < f2 : XINT (num1) < XINT (num2)) | |
1923 | return Qt; | |
1924 | return Qnil; | |
1925 | ||
1926 | case less_or_equal: | |
1927 | if (floatp ? f1 <= f2 : XINT (num1) <= XINT (num2)) | |
1928 | return Qt; | |
1929 | return Qnil; | |
1930 | ||
1931 | case grtr: | |
1932 | if (floatp ? f1 > f2 : XINT (num1) > XINT (num2)) | |
1933 | return Qt; | |
1934 | return Qnil; | |
1935 | ||
1936 | case grtr_or_equal: | |
1937 | if (floatp ? f1 >= f2 : XINT (num1) >= XINT (num2)) | |
1938 | return Qt; | |
1939 | return Qnil; | |
25e40a4b JB |
1940 | |
1941 | default: | |
1942 | abort (); | |
7921925c JB |
1943 | } |
1944 | } | |
1945 | ||
1946 | DEFUN ("=", Feqlsign, Seqlsign, 2, 2, 0, | |
c2124165 | 1947 | "Return t if two args, both numbers or markers, are equal.") |
7921925c JB |
1948 | (num1, num2) |
1949 | register Lisp_Object num1, num2; | |
1950 | { | |
1951 | return arithcompare (num1, num2, equal); | |
1952 | } | |
1953 | ||
1954 | DEFUN ("<", Flss, Slss, 2, 2, 0, | |
c2124165 | 1955 | "Return t if first arg is less than second arg. Both must be numbers or markers.") |
7921925c JB |
1956 | (num1, num2) |
1957 | register Lisp_Object num1, num2; | |
1958 | { | |
1959 | return arithcompare (num1, num2, less); | |
1960 | } | |
1961 | ||
1962 | DEFUN (">", Fgtr, Sgtr, 2, 2, 0, | |
c2124165 | 1963 | "Return t if first arg is greater than second arg. Both must be numbers or markers.") |
7921925c JB |
1964 | (num1, num2) |
1965 | register Lisp_Object num1, num2; | |
1966 | { | |
1967 | return arithcompare (num1, num2, grtr); | |
1968 | } | |
1969 | ||
1970 | DEFUN ("<=", Fleq, Sleq, 2, 2, 0, | |
c2124165 | 1971 | "Return t if first arg is less than or equal to second arg.\n\ |
7921925c JB |
1972 | Both must be numbers or markers.") |
1973 | (num1, num2) | |
1974 | register Lisp_Object num1, num2; | |
1975 | { | |
1976 | return arithcompare (num1, num2, less_or_equal); | |
1977 | } | |
1978 | ||
1979 | DEFUN (">=", Fgeq, Sgeq, 2, 2, 0, | |
c2124165 | 1980 | "Return t if first arg is greater than or equal to second arg.\n\ |
7921925c JB |
1981 | Both must be numbers or markers.") |
1982 | (num1, num2) | |
1983 | register Lisp_Object num1, num2; | |
1984 | { | |
1985 | return arithcompare (num1, num2, grtr_or_equal); | |
1986 | } | |
1987 | ||
1988 | DEFUN ("/=", Fneq, Sneq, 2, 2, 0, | |
c2124165 | 1989 | "Return t if first arg is not equal to second arg. Both must be numbers or markers.") |
7921925c JB |
1990 | (num1, num2) |
1991 | register Lisp_Object num1, num2; | |
1992 | { | |
1993 | return arithcompare (num1, num2, notequal); | |
1994 | } | |
1995 | ||
c2124165 | 1996 | DEFUN ("zerop", Fzerop, Szerop, 1, 1, 0, "Return t if NUMBER is zero.") |
d9c2a0f2 EN |
1997 | (number) |
1998 | register Lisp_Object number; | |
7921925c JB |
1999 | { |
2000 | #ifdef LISP_FLOAT_TYPE | |
d9c2a0f2 | 2001 | CHECK_NUMBER_OR_FLOAT (number, 0); |
7921925c | 2002 | |
d9c2a0f2 | 2003 | if (FLOATP (number)) |
7921925c | 2004 | { |
d9c2a0f2 | 2005 | if (XFLOAT(number)->data == 0.0) |
7921925c JB |
2006 | return Qt; |
2007 | return Qnil; | |
2008 | } | |
2009 | #else | |
d9c2a0f2 | 2010 | CHECK_NUMBER (number, 0); |
7921925c JB |
2011 | #endif /* LISP_FLOAT_TYPE */ |
2012 | ||
d9c2a0f2 | 2013 | if (!XINT (number)) |
7921925c JB |
2014 | return Qt; |
2015 | return Qnil; | |
2016 | } | |
2017 | \f | |
34f4f6c6 | 2018 | /* Convert between long values and pairs of Lisp integers. */ |
51cf3e31 JB |
2019 | |
2020 | Lisp_Object | |
2021 | long_to_cons (i) | |
2022 | unsigned long i; | |
2023 | { | |
2024 | unsigned int top = i >> 16; | |
2025 | unsigned int bot = i & 0xFFFF; | |
2026 | if (top == 0) | |
2027 | return make_number (bot); | |
b42cfa11 | 2028 | if (top == (unsigned long)-1 >> 16) |
51cf3e31 JB |
2029 | return Fcons (make_number (-1), make_number (bot)); |
2030 | return Fcons (make_number (top), make_number (bot)); | |
2031 | } | |
2032 | ||
2033 | unsigned long | |
2034 | cons_to_long (c) | |
2035 | Lisp_Object c; | |
2036 | { | |
878a80cc | 2037 | Lisp_Object top, bot; |
51cf3e31 JB |
2038 | if (INTEGERP (c)) |
2039 | return XINT (c); | |
2040 | top = XCONS (c)->car; | |
2041 | bot = XCONS (c)->cdr; | |
2042 | if (CONSP (bot)) | |
2043 | bot = XCONS (bot)->car; | |
2044 | return ((XINT (top) << 16) | XINT (bot)); | |
2045 | } | |
2046 | \f | |
f2980264 | 2047 | DEFUN ("number-to-string", Fnumber_to_string, Snumber_to_string, 1, 1, 0, |
d9c2a0f2 | 2048 | "Convert NUMBER to a string by printing it in decimal.\n\ |
25e40a4b | 2049 | Uses a minus sign if negative.\n\ |
d9c2a0f2 EN |
2050 | NUMBER may be an integer or a floating point number.") |
2051 | (number) | |
2052 | Lisp_Object number; | |
7921925c | 2053 | { |
6030ce64 | 2054 | char buffer[VALBITS]; |
7921925c JB |
2055 | |
2056 | #ifndef LISP_FLOAT_TYPE | |
d9c2a0f2 | 2057 | CHECK_NUMBER (number, 0); |
7921925c | 2058 | #else |
d9c2a0f2 | 2059 | CHECK_NUMBER_OR_FLOAT (number, 0); |
7921925c | 2060 | |
d9c2a0f2 | 2061 | if (FLOATP (number)) |
7921925c JB |
2062 | { |
2063 | char pigbuf[350]; /* see comments in float_to_string */ | |
2064 | ||
d9c2a0f2 | 2065 | float_to_string (pigbuf, XFLOAT(number)->data); |
7403b5c8 | 2066 | return build_string (pigbuf); |
7921925c JB |
2067 | } |
2068 | #endif /* LISP_FLOAT_TYPE */ | |
2069 | ||
e6c82a8d | 2070 | if (sizeof (int) == sizeof (EMACS_INT)) |
d9c2a0f2 | 2071 | sprintf (buffer, "%d", XINT (number)); |
e6c82a8d | 2072 | else if (sizeof (long) == sizeof (EMACS_INT)) |
dd8daec5 | 2073 | sprintf (buffer, "%ld", (long) XINT (number)); |
e6c82a8d RS |
2074 | else |
2075 | abort (); | |
7921925c JB |
2076 | return build_string (buffer); |
2077 | } | |
2078 | ||
3883fbeb RS |
2079 | INLINE static int |
2080 | digit_to_number (character, base) | |
2081 | int character, base; | |
2082 | { | |
2083 | int digit; | |
2084 | ||
2085 | if (character >= '0' && character <= '9') | |
2086 | digit = character - '0'; | |
2087 | else if (character >= 'a' && character <= 'z') | |
2088 | digit = character - 'a' + 10; | |
2089 | else if (character >= 'A' && character <= 'Z') | |
2090 | digit = character - 'A' + 10; | |
2091 | else | |
2092 | return -1; | |
2093 | ||
2094 | if (digit >= base) | |
2095 | return -1; | |
2096 | else | |
2097 | return digit; | |
2098 | } | |
2099 | ||
2100 | DEFUN ("string-to-number", Fstring_to_number, Sstring_to_number, 1, 2, 0, | |
25e40a4b | 2101 | "Convert STRING to a number by parsing it as a decimal number.\n\ |
1c1c17eb | 2102 | This parses both integers and floating point numbers.\n\ |
3883fbeb RS |
2103 | It ignores leading spaces and tabs.\n\ |
2104 | \n\ | |
2105 | If BASE, interpret STRING as a number in that base. If BASE isn't\n\ | |
2106 | present, base 10 is used. BASE must be between 2 and 16 (inclusive).\n\ | |
8e36ae7f | 2107 | If the base used is not 10, floating point is not recognized.") |
3883fbeb RS |
2108 | (string, base) |
2109 | register Lisp_Object string, base; | |
7921925c | 2110 | { |
3883fbeb | 2111 | register unsigned char *p; |
dd8daec5 | 2112 | register int b, v = 0; |
3883fbeb | 2113 | int negative = 1; |
25e40a4b | 2114 | |
d9c2a0f2 | 2115 | CHECK_STRING (string, 0); |
7921925c | 2116 | |
3883fbeb RS |
2117 | if (NILP (base)) |
2118 | b = 10; | |
2119 | else | |
2120 | { | |
2121 | CHECK_NUMBER (base, 1); | |
2122 | b = XINT (base); | |
2123 | if (b < 2 || b > 16) | |
2124 | Fsignal (Qargs_out_of_range, Fcons (base, Qnil)); | |
2125 | } | |
2126 | ||
d9c2a0f2 | 2127 | p = XSTRING (string)->data; |
25e40a4b JB |
2128 | |
2129 | /* Skip any whitespace at the front of the number. Some versions of | |
2130 | atoi do this anyway, so we might as well make Emacs lisp consistent. */ | |
0a3e4d65 | 2131 | while (*p == ' ' || *p == '\t') |
25e40a4b JB |
2132 | p++; |
2133 | ||
3883fbeb RS |
2134 | if (*p == '-') |
2135 | { | |
2136 | negative = -1; | |
2137 | p++; | |
2138 | } | |
2139 | else if (*p == '+') | |
2140 | p++; | |
2141 | ||
7921925c | 2142 | #ifdef LISP_FLOAT_TYPE |
8e36ae7f | 2143 | if (isfloat_string (p) && b == 10) |
142d9135 | 2144 | return make_float (negative * atof (p)); |
7921925c JB |
2145 | #endif /* LISP_FLOAT_TYPE */ |
2146 | ||
3883fbeb RS |
2147 | while (1) |
2148 | { | |
2149 | int digit = digit_to_number (*p++, b); | |
2150 | if (digit < 0) | |
2151 | break; | |
2152 | v = v * b + digit; | |
2153 | } | |
2154 | ||
2155 | return make_number (negative * v); | |
7921925c | 2156 | } |
3883fbeb | 2157 | |
7403b5c8 | 2158 | \f |
7921925c JB |
2159 | enum arithop |
2160 | { Aadd, Asub, Amult, Adiv, Alogand, Alogior, Alogxor, Amax, Amin }; | |
2161 | ||
b06faa91 | 2162 | extern Lisp_Object float_arith_driver (); |
ad8d56b9 | 2163 | extern Lisp_Object fmod_float (); |
b06faa91 | 2164 | |
7921925c | 2165 | Lisp_Object |
87fbf902 | 2166 | arith_driver (code, nargs, args) |
7921925c JB |
2167 | enum arithop code; |
2168 | int nargs; | |
2169 | register Lisp_Object *args; | |
2170 | { | |
2171 | register Lisp_Object val; | |
2172 | register int argnum; | |
5260234d RS |
2173 | register EMACS_INT accum; |
2174 | register EMACS_INT next; | |
7921925c | 2175 | |
0220c518 | 2176 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2177 | { |
2178 | case Alogior: | |
2179 | case Alogxor: | |
2180 | case Aadd: | |
2181 | case Asub: | |
2182 | accum = 0; break; | |
2183 | case Amult: | |
2184 | accum = 1; break; | |
2185 | case Alogand: | |
2186 | accum = -1; break; | |
2187 | } | |
2188 | ||
2189 | for (argnum = 0; argnum < nargs; argnum++) | |
2190 | { | |
2191 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ | |
2192 | #ifdef LISP_FLOAT_TYPE | |
2193 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val, argnum); | |
2194 | ||
e9ebc175 | 2195 | if (FLOATP (val)) /* time to do serious math */ |
7921925c JB |
2196 | return (float_arith_driver ((double) accum, argnum, code, |
2197 | nargs, args)); | |
2198 | #else | |
2199 | CHECK_NUMBER_COERCE_MARKER (val, argnum); | |
2200 | #endif /* LISP_FLOAT_TYPE */ | |
2201 | args[argnum] = val; /* runs into a compiler bug. */ | |
2202 | next = XINT (args[argnum]); | |
0220c518 | 2203 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2204 | { |
2205 | case Aadd: accum += next; break; | |
2206 | case Asub: | |
e64981da | 2207 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c JB |
2208 | break; |
2209 | case Amult: accum *= next; break; | |
2210 | case Adiv: | |
2211 | if (!argnum) accum = next; | |
87fbf902 RS |
2212 | else |
2213 | { | |
2214 | if (next == 0) | |
2215 | Fsignal (Qarith_error, Qnil); | |
2216 | accum /= next; | |
2217 | } | |
7921925c JB |
2218 | break; |
2219 | case Alogand: accum &= next; break; | |
2220 | case Alogior: accum |= next; break; | |
2221 | case Alogxor: accum ^= next; break; | |
2222 | case Amax: if (!argnum || next > accum) accum = next; break; | |
2223 | case Amin: if (!argnum || next < accum) accum = next; break; | |
2224 | } | |
2225 | } | |
2226 | ||
f187f1f7 | 2227 | XSETINT (val, accum); |
7921925c JB |
2228 | return val; |
2229 | } | |
2230 | ||
1a2f2d33 KH |
2231 | #undef isnan |
2232 | #define isnan(x) ((x) != (x)) | |
2233 | ||
bc1c9d7e PE |
2234 | #ifdef LISP_FLOAT_TYPE |
2235 | ||
7921925c JB |
2236 | Lisp_Object |
2237 | float_arith_driver (accum, argnum, code, nargs, args) | |
2238 | double accum; | |
2239 | register int argnum; | |
2240 | enum arithop code; | |
2241 | int nargs; | |
2242 | register Lisp_Object *args; | |
2243 | { | |
2244 | register Lisp_Object val; | |
2245 | double next; | |
7403b5c8 | 2246 | |
7921925c JB |
2247 | for (; argnum < nargs; argnum++) |
2248 | { | |
2249 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ | |
2250 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val, argnum); | |
2251 | ||
e9ebc175 | 2252 | if (FLOATP (val)) |
7921925c JB |
2253 | { |
2254 | next = XFLOAT (val)->data; | |
2255 | } | |
2256 | else | |
2257 | { | |
2258 | args[argnum] = val; /* runs into a compiler bug. */ | |
2259 | next = XINT (args[argnum]); | |
2260 | } | |
0220c518 | 2261 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2262 | { |
2263 | case Aadd: | |
2264 | accum += next; | |
2265 | break; | |
2266 | case Asub: | |
e64981da | 2267 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c JB |
2268 | break; |
2269 | case Amult: | |
2270 | accum *= next; | |
2271 | break; | |
2272 | case Adiv: | |
2273 | if (!argnum) | |
2274 | accum = next; | |
2275 | else | |
87fbf902 | 2276 | { |
ad8d56b9 | 2277 | if (! IEEE_FLOATING_POINT && next == 0) |
87fbf902 RS |
2278 | Fsignal (Qarith_error, Qnil); |
2279 | accum /= next; | |
2280 | } | |
7921925c JB |
2281 | break; |
2282 | case Alogand: | |
2283 | case Alogior: | |
2284 | case Alogxor: | |
2285 | return wrong_type_argument (Qinteger_or_marker_p, val); | |
2286 | case Amax: | |
1a2f2d33 | 2287 | if (!argnum || isnan (next) || next > accum) |
7921925c JB |
2288 | accum = next; |
2289 | break; | |
2290 | case Amin: | |
1a2f2d33 | 2291 | if (!argnum || isnan (next) || next < accum) |
7921925c JB |
2292 | accum = next; |
2293 | break; | |
2294 | } | |
2295 | } | |
2296 | ||
2297 | return make_float (accum); | |
2298 | } | |
2299 | #endif /* LISP_FLOAT_TYPE */ | |
2300 | ||
2301 | DEFUN ("+", Fplus, Splus, 0, MANY, 0, | |
2302 | "Return sum of any number of arguments, which are numbers or markers.") | |
2303 | (nargs, args) | |
2304 | int nargs; | |
2305 | Lisp_Object *args; | |
2306 | { | |
2307 | return arith_driver (Aadd, nargs, args); | |
2308 | } | |
2309 | ||
2310 | DEFUN ("-", Fminus, Sminus, 0, MANY, 0, | |
2311 | "Negate number or subtract numbers or markers.\n\ | |
2312 | With one arg, negates it. With more than one arg,\n\ | |
2313 | subtracts all but the first from the first.") | |
2314 | (nargs, args) | |
2315 | int nargs; | |
2316 | Lisp_Object *args; | |
2317 | { | |
2318 | return arith_driver (Asub, nargs, args); | |
2319 | } | |
2320 | ||
2321 | DEFUN ("*", Ftimes, Stimes, 0, MANY, 0, | |
2322 | "Returns product of any number of arguments, which are numbers or markers.") | |
2323 | (nargs, args) | |
2324 | int nargs; | |
2325 | Lisp_Object *args; | |
2326 | { | |
2327 | return arith_driver (Amult, nargs, args); | |
2328 | } | |
2329 | ||
2330 | DEFUN ("/", Fquo, Squo, 2, MANY, 0, | |
2331 | "Returns first argument divided by all the remaining arguments.\n\ | |
2332 | The arguments must be numbers or markers.") | |
2333 | (nargs, args) | |
2334 | int nargs; | |
2335 | Lisp_Object *args; | |
2336 | { | |
2337 | return arith_driver (Adiv, nargs, args); | |
2338 | } | |
2339 | ||
2340 | DEFUN ("%", Frem, Srem, 2, 2, 0, | |
d9c2a0f2 | 2341 | "Returns remainder of X divided by Y.\n\ |
aa29f9b9 | 2342 | Both must be integers or markers.") |
d9c2a0f2 EN |
2343 | (x, y) |
2344 | register Lisp_Object x, y; | |
7921925c JB |
2345 | { |
2346 | Lisp_Object val; | |
2347 | ||
d9c2a0f2 EN |
2348 | CHECK_NUMBER_COERCE_MARKER (x, 0); |
2349 | CHECK_NUMBER_COERCE_MARKER (y, 1); | |
7921925c | 2350 | |
d9c2a0f2 | 2351 | if (XFASTINT (y) == 0) |
87fbf902 RS |
2352 | Fsignal (Qarith_error, Qnil); |
2353 | ||
d9c2a0f2 | 2354 | XSETINT (val, XINT (x) % XINT (y)); |
7921925c JB |
2355 | return val; |
2356 | } | |
2357 | ||
1d66a5fa KH |
2358 | #ifndef HAVE_FMOD |
2359 | double | |
2360 | fmod (f1, f2) | |
2361 | double f1, f2; | |
2362 | { | |
bc1c9d7e PE |
2363 | double r = f1; |
2364 | ||
fa43b1e8 KH |
2365 | if (f2 < 0.0) |
2366 | f2 = -f2; | |
bc1c9d7e PE |
2367 | |
2368 | /* If the magnitude of the result exceeds that of the divisor, or | |
2369 | the sign of the result does not agree with that of the dividend, | |
2370 | iterate with the reduced value. This does not yield a | |
2371 | particularly accurate result, but at least it will be in the | |
2372 | range promised by fmod. */ | |
2373 | do | |
2374 | r -= f2 * floor (r / f2); | |
2375 | while (f2 <= (r < 0 ? -r : r) || ((r < 0) != (f1 < 0) && ! isnan (r))); | |
2376 | ||
2377 | return r; | |
1d66a5fa KH |
2378 | } |
2379 | #endif /* ! HAVE_FMOD */ | |
2380 | ||
44fa9da5 PE |
2381 | DEFUN ("mod", Fmod, Smod, 2, 2, 0, |
2382 | "Returns X modulo Y.\n\ | |
2383 | The result falls between zero (inclusive) and Y (exclusive).\n\ | |
2384 | Both X and Y must be numbers or markers.") | |
d9c2a0f2 EN |
2385 | (x, y) |
2386 | register Lisp_Object x, y; | |
44fa9da5 PE |
2387 | { |
2388 | Lisp_Object val; | |
5260234d | 2389 | EMACS_INT i1, i2; |
44fa9da5 PE |
2390 | |
2391 | #ifdef LISP_FLOAT_TYPE | |
d9c2a0f2 EN |
2392 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (x, 0); |
2393 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (y, 1); | |
44fa9da5 | 2394 | |
d9c2a0f2 | 2395 | if (FLOATP (x) || FLOATP (y)) |
ad8d56b9 PE |
2396 | return fmod_float (x, y); |
2397 | ||
44fa9da5 | 2398 | #else /* not LISP_FLOAT_TYPE */ |
d9c2a0f2 EN |
2399 | CHECK_NUMBER_COERCE_MARKER (x, 0); |
2400 | CHECK_NUMBER_COERCE_MARKER (y, 1); | |
44fa9da5 PE |
2401 | #endif /* not LISP_FLOAT_TYPE */ |
2402 | ||
d9c2a0f2 EN |
2403 | i1 = XINT (x); |
2404 | i2 = XINT (y); | |
44fa9da5 PE |
2405 | |
2406 | if (i2 == 0) | |
2407 | Fsignal (Qarith_error, Qnil); | |
7403b5c8 | 2408 | |
44fa9da5 PE |
2409 | i1 %= i2; |
2410 | ||
2411 | /* If the "remainder" comes out with the wrong sign, fix it. */ | |
04f7ec69 | 2412 | if (i2 < 0 ? i1 > 0 : i1 < 0) |
44fa9da5 PE |
2413 | i1 += i2; |
2414 | ||
f187f1f7 | 2415 | XSETINT (val, i1); |
44fa9da5 PE |
2416 | return val; |
2417 | } | |
2418 | ||
7921925c JB |
2419 | DEFUN ("max", Fmax, Smax, 1, MANY, 0, |
2420 | "Return largest of all the arguments (which must be numbers or markers).\n\ | |
2421 | The value is always a number; markers are converted to numbers.") | |
2422 | (nargs, args) | |
2423 | int nargs; | |
2424 | Lisp_Object *args; | |
2425 | { | |
2426 | return arith_driver (Amax, nargs, args); | |
2427 | } | |
2428 | ||
2429 | DEFUN ("min", Fmin, Smin, 1, MANY, 0, | |
2430 | "Return smallest of all the arguments (which must be numbers or markers).\n\ | |
2431 | The value is always a number; markers are converted to numbers.") | |
2432 | (nargs, args) | |
2433 | int nargs; | |
2434 | Lisp_Object *args; | |
2435 | { | |
2436 | return arith_driver (Amin, nargs, args); | |
2437 | } | |
2438 | ||
2439 | DEFUN ("logand", Flogand, Slogand, 0, MANY, 0, | |
2440 | "Return bitwise-and of all the arguments.\n\ | |
2441 | Arguments may be integers, or markers converted to integers.") | |
2442 | (nargs, args) | |
2443 | int nargs; | |
2444 | Lisp_Object *args; | |
2445 | { | |
2446 | return arith_driver (Alogand, nargs, args); | |
2447 | } | |
2448 | ||
2449 | DEFUN ("logior", Flogior, Slogior, 0, MANY, 0, | |
2450 | "Return bitwise-or of all the arguments.\n\ | |
2451 | Arguments may be integers, or markers converted to integers.") | |
2452 | (nargs, args) | |
2453 | int nargs; | |
2454 | Lisp_Object *args; | |
2455 | { | |
2456 | return arith_driver (Alogior, nargs, args); | |
2457 | } | |
2458 | ||
2459 | DEFUN ("logxor", Flogxor, Slogxor, 0, MANY, 0, | |
2460 | "Return bitwise-exclusive-or of all the arguments.\n\ | |
2461 | Arguments may be integers, or markers converted to integers.") | |
2462 | (nargs, args) | |
2463 | int nargs; | |
2464 | Lisp_Object *args; | |
2465 | { | |
2466 | return arith_driver (Alogxor, nargs, args); | |
2467 | } | |
2468 | ||
2469 | DEFUN ("ash", Fash, Sash, 2, 2, 0, | |
2470 | "Return VALUE with its bits shifted left by COUNT.\n\ | |
2471 | If COUNT is negative, shifting is actually to the right.\n\ | |
2472 | In this case, the sign bit is duplicated.") | |
3b9f7964 RS |
2473 | (value, count) |
2474 | register Lisp_Object value, count; | |
7921925c JB |
2475 | { |
2476 | register Lisp_Object val; | |
2477 | ||
3d9652eb RS |
2478 | CHECK_NUMBER (value, 0); |
2479 | CHECK_NUMBER (count, 1); | |
7921925c | 2480 | |
81d70626 RS |
2481 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2482 | XSETINT (val, 0); | |
2483 | else if (XINT (count) > 0) | |
3d9652eb | 2484 | XSETINT (val, XINT (value) << XFASTINT (count)); |
81d70626 RS |
2485 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2486 | XSETINT (val, XINT (value) < 0 ? -1 : 0); | |
7921925c | 2487 | else |
3d9652eb | 2488 | XSETINT (val, XINT (value) >> -XINT (count)); |
7921925c JB |
2489 | return val; |
2490 | } | |
2491 | ||
2492 | DEFUN ("lsh", Flsh, Slsh, 2, 2, 0, | |
2493 | "Return VALUE with its bits shifted left by COUNT.\n\ | |
2494 | If COUNT is negative, shifting is actually to the right.\n\ | |
2495 | In this case, zeros are shifted in on the left.") | |
3d9652eb RS |
2496 | (value, count) |
2497 | register Lisp_Object value, count; | |
7921925c JB |
2498 | { |
2499 | register Lisp_Object val; | |
2500 | ||
3d9652eb RS |
2501 | CHECK_NUMBER (value, 0); |
2502 | CHECK_NUMBER (count, 1); | |
7921925c | 2503 | |
81d70626 RS |
2504 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2505 | XSETINT (val, 0); | |
2506 | else if (XINT (count) > 0) | |
3d9652eb | 2507 | XSETINT (val, (EMACS_UINT) XUINT (value) << XFASTINT (count)); |
81d70626 RS |
2508 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2509 | XSETINT (val, 0); | |
7921925c | 2510 | else |
3d9652eb | 2511 | XSETINT (val, (EMACS_UINT) XUINT (value) >> -XINT (count)); |
7921925c JB |
2512 | return val; |
2513 | } | |
2514 | ||
2515 | DEFUN ("1+", Fadd1, Sadd1, 1, 1, 0, | |
2516 | "Return NUMBER plus one. NUMBER may be a number or a marker.\n\ | |
2517 | Markers are converted to integers.") | |
d9c2a0f2 EN |
2518 | (number) |
2519 | register Lisp_Object number; | |
7921925c JB |
2520 | { |
2521 | #ifdef LISP_FLOAT_TYPE | |
d9c2a0f2 | 2522 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number, 0); |
7921925c | 2523 | |
d9c2a0f2 EN |
2524 | if (FLOATP (number)) |
2525 | return (make_float (1.0 + XFLOAT (number)->data)); | |
7921925c | 2526 | #else |
d9c2a0f2 | 2527 | CHECK_NUMBER_COERCE_MARKER (number, 0); |
7921925c JB |
2528 | #endif /* LISP_FLOAT_TYPE */ |
2529 | ||
d9c2a0f2 EN |
2530 | XSETINT (number, XINT (number) + 1); |
2531 | return number; | |
7921925c JB |
2532 | } |
2533 | ||
2534 | DEFUN ("1-", Fsub1, Ssub1, 1, 1, 0, | |
2535 | "Return NUMBER minus one. NUMBER may be a number or a marker.\n\ | |
2536 | Markers are converted to integers.") | |
d9c2a0f2 EN |
2537 | (number) |
2538 | register Lisp_Object number; | |
7921925c JB |
2539 | { |
2540 | #ifdef LISP_FLOAT_TYPE | |
d9c2a0f2 | 2541 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number, 0); |
7921925c | 2542 | |
d9c2a0f2 EN |
2543 | if (FLOATP (number)) |
2544 | return (make_float (-1.0 + XFLOAT (number)->data)); | |
7921925c | 2545 | #else |
d9c2a0f2 | 2546 | CHECK_NUMBER_COERCE_MARKER (number, 0); |
7921925c JB |
2547 | #endif /* LISP_FLOAT_TYPE */ |
2548 | ||
d9c2a0f2 EN |
2549 | XSETINT (number, XINT (number) - 1); |
2550 | return number; | |
7921925c JB |
2551 | } |
2552 | ||
2553 | DEFUN ("lognot", Flognot, Slognot, 1, 1, 0, | |
d9c2a0f2 EN |
2554 | "Return the bitwise complement of NUMBER. NUMBER must be an integer.") |
2555 | (number) | |
2556 | register Lisp_Object number; | |
7921925c | 2557 | { |
d9c2a0f2 | 2558 | CHECK_NUMBER (number, 0); |
53924017 | 2559 | XSETINT (number, ~XINT (number)); |
d9c2a0f2 | 2560 | return number; |
7921925c JB |
2561 | } |
2562 | \f | |
2563 | void | |
2564 | syms_of_data () | |
2565 | { | |
6315e761 RS |
2566 | Lisp_Object error_tail, arith_tail; |
2567 | ||
7921925c JB |
2568 | Qquote = intern ("quote"); |
2569 | Qlambda = intern ("lambda"); | |
2570 | Qsubr = intern ("subr"); | |
2571 | Qerror_conditions = intern ("error-conditions"); | |
2572 | Qerror_message = intern ("error-message"); | |
2573 | Qtop_level = intern ("top-level"); | |
2574 | ||
2575 | Qerror = intern ("error"); | |
2576 | Qquit = intern ("quit"); | |
2577 | Qwrong_type_argument = intern ("wrong-type-argument"); | |
2578 | Qargs_out_of_range = intern ("args-out-of-range"); | |
2579 | Qvoid_function = intern ("void-function"); | |
ffd56f97 | 2580 | Qcyclic_function_indirection = intern ("cyclic-function-indirection"); |
7921925c JB |
2581 | Qvoid_variable = intern ("void-variable"); |
2582 | Qsetting_constant = intern ("setting-constant"); | |
2583 | Qinvalid_read_syntax = intern ("invalid-read-syntax"); | |
2584 | ||
2585 | Qinvalid_function = intern ("invalid-function"); | |
2586 | Qwrong_number_of_arguments = intern ("wrong-number-of-arguments"); | |
2587 | Qno_catch = intern ("no-catch"); | |
2588 | Qend_of_file = intern ("end-of-file"); | |
2589 | Qarith_error = intern ("arith-error"); | |
2590 | Qbeginning_of_buffer = intern ("beginning-of-buffer"); | |
2591 | Qend_of_buffer = intern ("end-of-buffer"); | |
2592 | Qbuffer_read_only = intern ("buffer-read-only"); | |
3b8819d6 | 2593 | Qmark_inactive = intern ("mark-inactive"); |
7921925c JB |
2594 | |
2595 | Qlistp = intern ("listp"); | |
2596 | Qconsp = intern ("consp"); | |
2597 | Qsymbolp = intern ("symbolp"); | |
2598 | Qintegerp = intern ("integerp"); | |
2599 | Qnatnump = intern ("natnump"); | |
8e86942b | 2600 | Qwholenump = intern ("wholenump"); |
7921925c JB |
2601 | Qstringp = intern ("stringp"); |
2602 | Qarrayp = intern ("arrayp"); | |
2603 | Qsequencep = intern ("sequencep"); | |
2604 | Qbufferp = intern ("bufferp"); | |
2605 | Qvectorp = intern ("vectorp"); | |
2606 | Qchar_or_string_p = intern ("char-or-string-p"); | |
2607 | Qmarkerp = intern ("markerp"); | |
07bd8472 | 2608 | Qbuffer_or_string_p = intern ("buffer-or-string-p"); |
7921925c JB |
2609 | Qinteger_or_marker_p = intern ("integer-or-marker-p"); |
2610 | Qboundp = intern ("boundp"); | |
2611 | Qfboundp = intern ("fboundp"); | |
2612 | ||
2613 | #ifdef LISP_FLOAT_TYPE | |
2614 | Qfloatp = intern ("floatp"); | |
2615 | Qnumberp = intern ("numberp"); | |
2616 | Qnumber_or_marker_p = intern ("number-or-marker-p"); | |
2617 | #endif /* LISP_FLOAT_TYPE */ | |
2618 | ||
4d276982 | 2619 | Qchar_table_p = intern ("char-table-p"); |
7f0edce7 | 2620 | Qvector_or_char_table_p = intern ("vector-or-char-table-p"); |
4d276982 | 2621 | |
7921925c JB |
2622 | Qcdr = intern ("cdr"); |
2623 | ||
f845f2c9 | 2624 | /* Handle automatic advice activation */ |
ab297811 RS |
2625 | Qad_advice_info = intern ("ad-advice-info"); |
2626 | Qad_activate = intern ("ad-activate"); | |
f845f2c9 | 2627 | |
6315e761 RS |
2628 | error_tail = Fcons (Qerror, Qnil); |
2629 | ||
7921925c JB |
2630 | /* ERROR is used as a signaler for random errors for which nothing else is right */ |
2631 | ||
2632 | Fput (Qerror, Qerror_conditions, | |
6315e761 | 2633 | error_tail); |
7921925c JB |
2634 | Fput (Qerror, Qerror_message, |
2635 | build_string ("error")); | |
2636 | ||
2637 | Fput (Qquit, Qerror_conditions, | |
2638 | Fcons (Qquit, Qnil)); | |
2639 | Fput (Qquit, Qerror_message, | |
2640 | build_string ("Quit")); | |
2641 | ||
2642 | Fput (Qwrong_type_argument, Qerror_conditions, | |
6315e761 | 2643 | Fcons (Qwrong_type_argument, error_tail)); |
7921925c JB |
2644 | Fput (Qwrong_type_argument, Qerror_message, |
2645 | build_string ("Wrong type argument")); | |
2646 | ||
2647 | Fput (Qargs_out_of_range, Qerror_conditions, | |
6315e761 | 2648 | Fcons (Qargs_out_of_range, error_tail)); |
7921925c JB |
2649 | Fput (Qargs_out_of_range, Qerror_message, |
2650 | build_string ("Args out of range")); | |
2651 | ||
2652 | Fput (Qvoid_function, Qerror_conditions, | |
6315e761 | 2653 | Fcons (Qvoid_function, error_tail)); |
7921925c JB |
2654 | Fput (Qvoid_function, Qerror_message, |
2655 | build_string ("Symbol's function definition is void")); | |
2656 | ||
ffd56f97 | 2657 | Fput (Qcyclic_function_indirection, Qerror_conditions, |
6315e761 | 2658 | Fcons (Qcyclic_function_indirection, error_tail)); |
ffd56f97 JB |
2659 | Fput (Qcyclic_function_indirection, Qerror_message, |
2660 | build_string ("Symbol's chain of function indirections contains a loop")); | |
2661 | ||
7921925c | 2662 | Fput (Qvoid_variable, Qerror_conditions, |
6315e761 | 2663 | Fcons (Qvoid_variable, error_tail)); |
7921925c JB |
2664 | Fput (Qvoid_variable, Qerror_message, |
2665 | build_string ("Symbol's value as variable is void")); | |
2666 | ||
2667 | Fput (Qsetting_constant, Qerror_conditions, | |
6315e761 | 2668 | Fcons (Qsetting_constant, error_tail)); |
7921925c JB |
2669 | Fput (Qsetting_constant, Qerror_message, |
2670 | build_string ("Attempt to set a constant symbol")); | |
2671 | ||
2672 | Fput (Qinvalid_read_syntax, Qerror_conditions, | |
6315e761 | 2673 | Fcons (Qinvalid_read_syntax, error_tail)); |
7921925c JB |
2674 | Fput (Qinvalid_read_syntax, Qerror_message, |
2675 | build_string ("Invalid read syntax")); | |
2676 | ||
2677 | Fput (Qinvalid_function, Qerror_conditions, | |
6315e761 | 2678 | Fcons (Qinvalid_function, error_tail)); |
7921925c JB |
2679 | Fput (Qinvalid_function, Qerror_message, |
2680 | build_string ("Invalid function")); | |
2681 | ||
2682 | Fput (Qwrong_number_of_arguments, Qerror_conditions, | |
6315e761 | 2683 | Fcons (Qwrong_number_of_arguments, error_tail)); |
7921925c JB |
2684 | Fput (Qwrong_number_of_arguments, Qerror_message, |
2685 | build_string ("Wrong number of arguments")); | |
2686 | ||
2687 | Fput (Qno_catch, Qerror_conditions, | |
6315e761 | 2688 | Fcons (Qno_catch, error_tail)); |
7921925c JB |
2689 | Fput (Qno_catch, Qerror_message, |
2690 | build_string ("No catch for tag")); | |
2691 | ||
2692 | Fput (Qend_of_file, Qerror_conditions, | |
6315e761 | 2693 | Fcons (Qend_of_file, error_tail)); |
7921925c JB |
2694 | Fput (Qend_of_file, Qerror_message, |
2695 | build_string ("End of file during parsing")); | |
2696 | ||
6315e761 | 2697 | arith_tail = Fcons (Qarith_error, error_tail); |
7921925c | 2698 | Fput (Qarith_error, Qerror_conditions, |
6315e761 | 2699 | arith_tail); |
7921925c JB |
2700 | Fput (Qarith_error, Qerror_message, |
2701 | build_string ("Arithmetic error")); | |
2702 | ||
2703 | Fput (Qbeginning_of_buffer, Qerror_conditions, | |
6315e761 | 2704 | Fcons (Qbeginning_of_buffer, error_tail)); |
7921925c JB |
2705 | Fput (Qbeginning_of_buffer, Qerror_message, |
2706 | build_string ("Beginning of buffer")); | |
2707 | ||
2708 | Fput (Qend_of_buffer, Qerror_conditions, | |
6315e761 | 2709 | Fcons (Qend_of_buffer, error_tail)); |
7921925c JB |
2710 | Fput (Qend_of_buffer, Qerror_message, |
2711 | build_string ("End of buffer")); | |
2712 | ||
2713 | Fput (Qbuffer_read_only, Qerror_conditions, | |
6315e761 | 2714 | Fcons (Qbuffer_read_only, error_tail)); |
7921925c JB |
2715 | Fput (Qbuffer_read_only, Qerror_message, |
2716 | build_string ("Buffer is read-only")); | |
2717 | ||
6315e761 RS |
2718 | #ifdef LISP_FLOAT_TYPE |
2719 | Qrange_error = intern ("range-error"); | |
2720 | Qdomain_error = intern ("domain-error"); | |
2721 | Qsingularity_error = intern ("singularity-error"); | |
2722 | Qoverflow_error = intern ("overflow-error"); | |
2723 | Qunderflow_error = intern ("underflow-error"); | |
2724 | ||
2725 | Fput (Qdomain_error, Qerror_conditions, | |
2726 | Fcons (Qdomain_error, arith_tail)); | |
2727 | Fput (Qdomain_error, Qerror_message, | |
2728 | build_string ("Arithmetic domain error")); | |
2729 | ||
2730 | Fput (Qrange_error, Qerror_conditions, | |
2731 | Fcons (Qrange_error, arith_tail)); | |
2732 | Fput (Qrange_error, Qerror_message, | |
2733 | build_string ("Arithmetic range error")); | |
2734 | ||
2735 | Fput (Qsingularity_error, Qerror_conditions, | |
2736 | Fcons (Qsingularity_error, Fcons (Qdomain_error, arith_tail))); | |
2737 | Fput (Qsingularity_error, Qerror_message, | |
2738 | build_string ("Arithmetic singularity error")); | |
2739 | ||
2740 | Fput (Qoverflow_error, Qerror_conditions, | |
2741 | Fcons (Qoverflow_error, Fcons (Qdomain_error, arith_tail))); | |
2742 | Fput (Qoverflow_error, Qerror_message, | |
2743 | build_string ("Arithmetic overflow error")); | |
2744 | ||
2745 | Fput (Qunderflow_error, Qerror_conditions, | |
2746 | Fcons (Qunderflow_error, Fcons (Qdomain_error, arith_tail))); | |
2747 | Fput (Qunderflow_error, Qerror_message, | |
2748 | build_string ("Arithmetic underflow error")); | |
2749 | ||
2750 | staticpro (&Qrange_error); | |
2751 | staticpro (&Qdomain_error); | |
2752 | staticpro (&Qsingularity_error); | |
2753 | staticpro (&Qoverflow_error); | |
2754 | staticpro (&Qunderflow_error); | |
2755 | #endif /* LISP_FLOAT_TYPE */ | |
2756 | ||
7921925c JB |
2757 | staticpro (&Qnil); |
2758 | staticpro (&Qt); | |
2759 | staticpro (&Qquote); | |
2760 | staticpro (&Qlambda); | |
2761 | staticpro (&Qsubr); | |
2762 | staticpro (&Qunbound); | |
2763 | staticpro (&Qerror_conditions); | |
2764 | staticpro (&Qerror_message); | |
2765 | staticpro (&Qtop_level); | |
2766 | ||
2767 | staticpro (&Qerror); | |
2768 | staticpro (&Qquit); | |
2769 | staticpro (&Qwrong_type_argument); | |
2770 | staticpro (&Qargs_out_of_range); | |
2771 | staticpro (&Qvoid_function); | |
ffd56f97 | 2772 | staticpro (&Qcyclic_function_indirection); |
7921925c JB |
2773 | staticpro (&Qvoid_variable); |
2774 | staticpro (&Qsetting_constant); | |
2775 | staticpro (&Qinvalid_read_syntax); | |
2776 | staticpro (&Qwrong_number_of_arguments); | |
2777 | staticpro (&Qinvalid_function); | |
2778 | staticpro (&Qno_catch); | |
2779 | staticpro (&Qend_of_file); | |
2780 | staticpro (&Qarith_error); | |
2781 | staticpro (&Qbeginning_of_buffer); | |
2782 | staticpro (&Qend_of_buffer); | |
2783 | staticpro (&Qbuffer_read_only); | |
638b77e6 | 2784 | staticpro (&Qmark_inactive); |
7921925c JB |
2785 | |
2786 | staticpro (&Qlistp); | |
2787 | staticpro (&Qconsp); | |
2788 | staticpro (&Qsymbolp); | |
2789 | staticpro (&Qintegerp); | |
2790 | staticpro (&Qnatnump); | |
8e86942b | 2791 | staticpro (&Qwholenump); |
7921925c JB |
2792 | staticpro (&Qstringp); |
2793 | staticpro (&Qarrayp); | |
2794 | staticpro (&Qsequencep); | |
2795 | staticpro (&Qbufferp); | |
2796 | staticpro (&Qvectorp); | |
2797 | staticpro (&Qchar_or_string_p); | |
2798 | staticpro (&Qmarkerp); | |
07bd8472 | 2799 | staticpro (&Qbuffer_or_string_p); |
7921925c JB |
2800 | staticpro (&Qinteger_or_marker_p); |
2801 | #ifdef LISP_FLOAT_TYPE | |
2802 | staticpro (&Qfloatp); | |
464f8898 RS |
2803 | staticpro (&Qnumberp); |
2804 | staticpro (&Qnumber_or_marker_p); | |
7921925c | 2805 | #endif /* LISP_FLOAT_TYPE */ |
4d276982 | 2806 | staticpro (&Qchar_table_p); |
7f0edce7 | 2807 | staticpro (&Qvector_or_char_table_p); |
7921925c JB |
2808 | |
2809 | staticpro (&Qboundp); | |
2810 | staticpro (&Qfboundp); | |
2811 | staticpro (&Qcdr); | |
ab297811 RS |
2812 | staticpro (&Qad_advice_info); |
2813 | staticpro (&Qad_activate); | |
7921925c | 2814 | |
39bcc759 RS |
2815 | /* Types that type-of returns. */ |
2816 | Qinteger = intern ("integer"); | |
2817 | Qsymbol = intern ("symbol"); | |
2818 | Qstring = intern ("string"); | |
2819 | Qcons = intern ("cons"); | |
2820 | Qmarker = intern ("marker"); | |
2821 | Qoverlay = intern ("overlay"); | |
2822 | Qfloat = intern ("float"); | |
2823 | Qwindow_configuration = intern ("window-configuration"); | |
2824 | Qprocess = intern ("process"); | |
2825 | Qwindow = intern ("window"); | |
2826 | /* Qsubr = intern ("subr"); */ | |
2827 | Qcompiled_function = intern ("compiled-function"); | |
2828 | Qbuffer = intern ("buffer"); | |
2829 | Qframe = intern ("frame"); | |
2830 | Qvector = intern ("vector"); | |
fc67d5be KH |
2831 | Qchar_table = intern ("char-table"); |
2832 | Qbool_vector = intern ("bool-vector"); | |
39bcc759 RS |
2833 | |
2834 | staticpro (&Qinteger); | |
2835 | staticpro (&Qsymbol); | |
2836 | staticpro (&Qstring); | |
2837 | staticpro (&Qcons); | |
2838 | staticpro (&Qmarker); | |
2839 | staticpro (&Qoverlay); | |
2840 | staticpro (&Qfloat); | |
2841 | staticpro (&Qwindow_configuration); | |
2842 | staticpro (&Qprocess); | |
2843 | staticpro (&Qwindow); | |
2844 | /* staticpro (&Qsubr); */ | |
2845 | staticpro (&Qcompiled_function); | |
2846 | staticpro (&Qbuffer); | |
2847 | staticpro (&Qframe); | |
2848 | staticpro (&Qvector); | |
fc67d5be KH |
2849 | staticpro (&Qchar_table); |
2850 | staticpro (&Qbool_vector); | |
39bcc759 | 2851 | |
5c5aad07 KH |
2852 | DEFVAR_BOOL ("keyword-symbols-constant-flag", &keyword_symbols_constant_flag, |
2853 | "Non-nil means it is an error to set a keyword symbol.\n\ | |
2854 | A keyword symbol is a symbol whose name starts with a colon (`:')."); | |
2855 | keyword_symbols_constant_flag = 1; | |
2856 | ||
7921925c JB |
2857 | defsubr (&Seq); |
2858 | defsubr (&Snull); | |
39bcc759 | 2859 | defsubr (&Stype_of); |
7921925c JB |
2860 | defsubr (&Slistp); |
2861 | defsubr (&Snlistp); | |
2862 | defsubr (&Sconsp); | |
2863 | defsubr (&Satom); | |
2864 | defsubr (&Sintegerp); | |
464f8898 | 2865 | defsubr (&Sinteger_or_marker_p); |
7921925c JB |
2866 | defsubr (&Snumberp); |
2867 | defsubr (&Snumber_or_marker_p); | |
464f8898 RS |
2868 | #ifdef LISP_FLOAT_TYPE |
2869 | defsubr (&Sfloatp); | |
7921925c JB |
2870 | #endif /* LISP_FLOAT_TYPE */ |
2871 | defsubr (&Snatnump); | |
2872 | defsubr (&Ssymbolp); | |
2873 | defsubr (&Sstringp); | |
0f56470d | 2874 | defsubr (&Smultibyte_string_p); |
7921925c | 2875 | defsubr (&Svectorp); |
4d276982 | 2876 | defsubr (&Schar_table_p); |
7f0edce7 | 2877 | defsubr (&Svector_or_char_table_p); |
4d276982 | 2878 | defsubr (&Sbool_vector_p); |
7921925c JB |
2879 | defsubr (&Sarrayp); |
2880 | defsubr (&Ssequencep); | |
2881 | defsubr (&Sbufferp); | |
2882 | defsubr (&Smarkerp); | |
7921925c | 2883 | defsubr (&Ssubrp); |
dbc4e1c1 | 2884 | defsubr (&Sbyte_code_function_p); |
7921925c JB |
2885 | defsubr (&Schar_or_string_p); |
2886 | defsubr (&Scar); | |
2887 | defsubr (&Scdr); | |
2888 | defsubr (&Scar_safe); | |
2889 | defsubr (&Scdr_safe); | |
2890 | defsubr (&Ssetcar); | |
2891 | defsubr (&Ssetcdr); | |
2892 | defsubr (&Ssymbol_function); | |
ffd56f97 | 2893 | defsubr (&Sindirect_function); |
7921925c JB |
2894 | defsubr (&Ssymbol_plist); |
2895 | defsubr (&Ssymbol_name); | |
2896 | defsubr (&Smakunbound); | |
2897 | defsubr (&Sfmakunbound); | |
2898 | defsubr (&Sboundp); | |
2899 | defsubr (&Sfboundp); | |
2900 | defsubr (&Sfset); | |
80df38a2 | 2901 | defsubr (&Sdefalias); |
7921925c JB |
2902 | defsubr (&Ssetplist); |
2903 | defsubr (&Ssymbol_value); | |
2904 | defsubr (&Sset); | |
2905 | defsubr (&Sdefault_boundp); | |
2906 | defsubr (&Sdefault_value); | |
2907 | defsubr (&Sset_default); | |
2908 | defsubr (&Ssetq_default); | |
2909 | defsubr (&Smake_variable_buffer_local); | |
2910 | defsubr (&Smake_local_variable); | |
2911 | defsubr (&Skill_local_variable); | |
b0c2d1c6 | 2912 | defsubr (&Smake_variable_frame_local); |
62476adc | 2913 | defsubr (&Slocal_variable_p); |
f4f04cee | 2914 | defsubr (&Slocal_variable_if_set_p); |
7921925c JB |
2915 | defsubr (&Saref); |
2916 | defsubr (&Saset); | |
f2980264 | 2917 | defsubr (&Snumber_to_string); |
25e40a4b | 2918 | defsubr (&Sstring_to_number); |
7921925c JB |
2919 | defsubr (&Seqlsign); |
2920 | defsubr (&Slss); | |
2921 | defsubr (&Sgtr); | |
2922 | defsubr (&Sleq); | |
2923 | defsubr (&Sgeq); | |
2924 | defsubr (&Sneq); | |
2925 | defsubr (&Szerop); | |
2926 | defsubr (&Splus); | |
2927 | defsubr (&Sminus); | |
2928 | defsubr (&Stimes); | |
2929 | defsubr (&Squo); | |
2930 | defsubr (&Srem); | |
44fa9da5 | 2931 | defsubr (&Smod); |
7921925c JB |
2932 | defsubr (&Smax); |
2933 | defsubr (&Smin); | |
2934 | defsubr (&Slogand); | |
2935 | defsubr (&Slogior); | |
2936 | defsubr (&Slogxor); | |
2937 | defsubr (&Slsh); | |
2938 | defsubr (&Sash); | |
2939 | defsubr (&Sadd1); | |
2940 | defsubr (&Ssub1); | |
2941 | defsubr (&Slognot); | |
8e86942b | 2942 | |
c80bd143 | 2943 | XSYMBOL (Qwholenump)->function = XSYMBOL (Qnatnump)->function; |
7921925c JB |
2944 | } |
2945 | ||
a33ef3ab | 2946 | SIGTYPE |
7921925c JB |
2947 | arith_error (signo) |
2948 | int signo; | |
2949 | { | |
fe42a920 | 2950 | #if defined(USG) && !defined(POSIX_SIGNALS) |
7921925c JB |
2951 | /* USG systems forget handlers when they are used; |
2952 | must reestablish each time */ | |
2953 | signal (signo, arith_error); | |
2954 | #endif /* USG */ | |
2955 | #ifdef VMS | |
2956 | /* VMS systems are like USG. */ | |
2957 | signal (signo, arith_error); | |
2958 | #endif /* VMS */ | |
2959 | #ifdef BSD4_1 | |
2960 | sigrelse (SIGFPE); | |
2961 | #else /* not BSD4_1 */ | |
e065a56e | 2962 | sigsetmask (SIGEMPTYMASK); |
7921925c JB |
2963 | #endif /* not BSD4_1 */ |
2964 | ||
2965 | Fsignal (Qarith_error, Qnil); | |
2966 | } | |
2967 | ||
dfcf069d | 2968 | void |
7921925c JB |
2969 | init_data () |
2970 | { | |
2971 | /* Don't do this if just dumping out. | |
2972 | We don't want to call `signal' in this case | |
2973 | so that we don't have trouble with dumping | |
2974 | signal-delivering routines in an inconsistent state. */ | |
2975 | #ifndef CANNOT_DUMP | |
2976 | if (!initialized) | |
2977 | return; | |
2978 | #endif /* CANNOT_DUMP */ | |
2979 | signal (SIGFPE, arith_error); | |
7403b5c8 | 2980 | |
7921925c JB |
2981 | #ifdef uts |
2982 | signal (SIGEMT, arith_error); | |
2983 | #endif /* uts */ | |
2984 | } |