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