Commit | Line | Data |
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7921925c | 1 | /* Primitive operations on Lisp data types for GNU Emacs Lisp interpreter. |
68c45bf0 | 2 | Copyright (C) 1985,86,88,93,94,95,97,98, 1999 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 | ||
18160b98 | 22 | #include <config.h> |
68c45bf0 | 23 | #include <signal.h> |
dd8daec5 | 24 | #include <stdio.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 | 39 | #ifdef STDC_HEADERS |
2f261542 | 40 | #include <float.h> |
93b91208 | 41 | #endif |
defa77b5 | 42 | |
ad8d56b9 PE |
43 | /* If IEEE_FLOATING_POINT isn't defined, default it from FLT_*. */ |
44 | #ifndef IEEE_FLOATING_POINT | |
45 | #if (FLT_RADIX == 2 && FLT_MANT_DIG == 24 \ | |
46 | && FLT_MIN_EXP == -125 && FLT_MAX_EXP == 128) | |
47 | #define IEEE_FLOATING_POINT 1 | |
48 | #else | |
49 | #define IEEE_FLOATING_POINT 0 | |
50 | #endif | |
51 | #endif | |
52 | ||
defa77b5 RS |
53 | /* Work around a problem that happens because math.h on hpux 7 |
54 | defines two static variables--which, in Emacs, are not really static, | |
55 | because `static' is defined as nothing. The problem is that they are | |
56 | here, in floatfns.c, and in lread.c. | |
57 | These macros prevent the name conflict. */ | |
58 | #if defined (HPUX) && !defined (HPUX8) | |
59 | #define _MAXLDBL data_c_maxldbl | |
60 | #define _NMAXLDBL data_c_nmaxldbl | |
61 | #endif | |
62 | ||
7921925c JB |
63 | #include <math.h> |
64 | #endif /* LISP_FLOAT_TYPE */ | |
65 | ||
024ec58f BF |
66 | #if !defined (atof) |
67 | extern double atof (); | |
68 | #endif /* !atof */ | |
69 | ||
5c5aad07 KH |
70 | /* Nonzero means it is an error to set a symbol whose name starts with |
71 | colon. */ | |
72 | int keyword_symbols_constant_flag; | |
73 | ||
7921925c JB |
74 | Lisp_Object Qnil, Qt, Qquote, Qlambda, Qsubr, Qunbound; |
75 | Lisp_Object Qerror_conditions, Qerror_message, Qtop_level; | |
76 | Lisp_Object Qerror, Qquit, Qwrong_type_argument, Qargs_out_of_range; | |
ffd56f97 | 77 | Lisp_Object Qvoid_variable, Qvoid_function, Qcyclic_function_indirection; |
7921925c JB |
78 | Lisp_Object Qsetting_constant, Qinvalid_read_syntax; |
79 | Lisp_Object Qinvalid_function, Qwrong_number_of_arguments, Qno_catch; | |
3b8819d6 | 80 | Lisp_Object Qend_of_file, Qarith_error, Qmark_inactive; |
7921925c | 81 | Lisp_Object Qbeginning_of_buffer, Qend_of_buffer, Qbuffer_read_only; |
8e86942b | 82 | Lisp_Object Qintegerp, Qnatnump, Qwholenump, Qsymbolp, Qlistp, Qconsp; |
7921925c JB |
83 | Lisp_Object Qstringp, Qarrayp, Qsequencep, Qbufferp; |
84 | Lisp_Object Qchar_or_string_p, Qmarkerp, Qinteger_or_marker_p, Qvectorp; | |
07bd8472 | 85 | Lisp_Object Qbuffer_or_string_p; |
7921925c | 86 | Lisp_Object Qboundp, Qfboundp; |
7f0edce7 | 87 | Lisp_Object Qchar_table_p, Qvector_or_char_table_p; |
39bcc759 | 88 | |
7921925c | 89 | Lisp_Object Qcdr; |
ab297811 | 90 | Lisp_Object Qad_advice_info, Qad_activate; |
7921925c | 91 | |
6315e761 RS |
92 | Lisp_Object Qrange_error, Qdomain_error, Qsingularity_error; |
93 | Lisp_Object Qoverflow_error, Qunderflow_error; | |
94 | ||
7921925c | 95 | #ifdef LISP_FLOAT_TYPE |
464f8898 | 96 | Lisp_Object Qfloatp; |
7921925c JB |
97 | Lisp_Object Qnumberp, Qnumber_or_marker_p; |
98 | #endif | |
99 | ||
39bcc759 | 100 | static Lisp_Object Qinteger, Qsymbol, Qstring, Qcons, Qmarker, Qoverlay; |
8313c4e7 KH |
101 | static Lisp_Object Qfloat, Qwindow_configuration, Qwindow; |
102 | Lisp_Object Qprocess; | |
39bcc759 | 103 | static Lisp_Object Qcompiled_function, Qbuffer, Qframe, Qvector; |
fc67d5be | 104 | static Lisp_Object Qchar_table, Qbool_vector; |
39bcc759 | 105 | |
7921925c JB |
106 | static Lisp_Object swap_in_symval_forwarding (); |
107 | ||
d02eeab3 KH |
108 | Lisp_Object set_internal (); |
109 | ||
7921925c JB |
110 | Lisp_Object |
111 | wrong_type_argument (predicate, value) | |
112 | register Lisp_Object predicate, value; | |
113 | { | |
114 | register Lisp_Object tem; | |
115 | do | |
116 | { | |
117 | if (!EQ (Vmocklisp_arguments, Qt)) | |
118 | { | |
e9ebc175 | 119 | if (STRINGP (value) && |
7921925c | 120 | (EQ (predicate, Qintegerp) || EQ (predicate, Qinteger_or_marker_p))) |
3883fbeb | 121 | return Fstring_to_number (value, Qnil); |
e9ebc175 | 122 | if (INTEGERP (value) && EQ (predicate, Qstringp)) |
f2980264 | 123 | return Fnumber_to_string (value); |
7921925c | 124 | } |
e1351ff7 RS |
125 | |
126 | /* If VALUE is not even a valid Lisp object, abort here | |
127 | where we can get a backtrace showing where it came from. */ | |
04be3993 | 128 | if ((unsigned int) XGCTYPE (value) >= Lisp_Type_Limit) |
e1351ff7 RS |
129 | abort (); |
130 | ||
7921925c JB |
131 | value = Fsignal (Qwrong_type_argument, Fcons (predicate, Fcons (value, Qnil))); |
132 | tem = call1 (predicate, value); | |
133 | } | |
a33ef3ab | 134 | while (NILP (tem)); |
7921925c JB |
135 | return value; |
136 | } | |
137 | ||
dfcf069d | 138 | void |
7921925c JB |
139 | pure_write_error () |
140 | { | |
141 | error ("Attempt to modify read-only object"); | |
142 | } | |
143 | ||
144 | void | |
145 | args_out_of_range (a1, a2) | |
146 | Lisp_Object a1, a2; | |
147 | { | |
148 | while (1) | |
149 | Fsignal (Qargs_out_of_range, Fcons (a1, Fcons (a2, Qnil))); | |
150 | } | |
151 | ||
152 | void | |
153 | args_out_of_range_3 (a1, a2, a3) | |
154 | Lisp_Object a1, a2, a3; | |
155 | { | |
156 | while (1) | |
157 | Fsignal (Qargs_out_of_range, Fcons (a1, Fcons (a2, Fcons (a3, Qnil)))); | |
158 | } | |
159 | ||
7921925c JB |
160 | /* On some machines, XINT needs a temporary location. |
161 | Here it is, in case it is needed. */ | |
162 | ||
163 | int sign_extend_temp; | |
164 | ||
165 | /* On a few machines, XINT can only be done by calling this. */ | |
166 | ||
167 | int | |
168 | sign_extend_lisp_int (num) | |
a0ed95ea | 169 | EMACS_INT num; |
7921925c | 170 | { |
a0ed95ea RS |
171 | if (num & (((EMACS_INT) 1) << (VALBITS - 1))) |
172 | return num | (((EMACS_INT) (-1)) << VALBITS); | |
7921925c | 173 | else |
a0ed95ea | 174 | return num & ((((EMACS_INT) 1) << VALBITS) - 1); |
7921925c JB |
175 | } |
176 | \f | |
177 | /* Data type predicates */ | |
178 | ||
179 | DEFUN ("eq", Feq, Seq, 2, 2, 0, | |
c2124165 | 180 | "Return t if the two args are the same Lisp object.") |
7921925c JB |
181 | (obj1, obj2) |
182 | Lisp_Object obj1, obj2; | |
183 | { | |
184 | if (EQ (obj1, obj2)) | |
185 | return Qt; | |
186 | return Qnil; | |
187 | } | |
188 | ||
c2124165 | 189 | DEFUN ("null", Fnull, Snull, 1, 1, 0, "Return t if OBJECT is nil.") |
39bcc759 RS |
190 | (object) |
191 | Lisp_Object object; | |
7921925c | 192 | { |
39bcc759 | 193 | if (NILP (object)) |
7921925c JB |
194 | return Qt; |
195 | return Qnil; | |
196 | } | |
197 | ||
39bcc759 RS |
198 | DEFUN ("type-of", Ftype_of, Stype_of, 1, 1, 0, |
199 | "Return a symbol representing the type of OBJECT.\n\ | |
200 | The symbol returned names the object's basic type;\n\ | |
201 | for example, (type-of 1) returns `integer'.") | |
202 | (object) | |
203 | Lisp_Object object; | |
204 | { | |
205 | switch (XGCTYPE (object)) | |
206 | { | |
207 | case Lisp_Int: | |
208 | return Qinteger; | |
209 | ||
210 | case Lisp_Symbol: | |
211 | return Qsymbol; | |
212 | ||
213 | case Lisp_String: | |
214 | return Qstring; | |
215 | ||
216 | case Lisp_Cons: | |
217 | return Qcons; | |
218 | ||
219 | case Lisp_Misc: | |
324a6eef | 220 | switch (XMISCTYPE (object)) |
39bcc759 RS |
221 | { |
222 | case Lisp_Misc_Marker: | |
223 | return Qmarker; | |
224 | case Lisp_Misc_Overlay: | |
225 | return Qoverlay; | |
226 | case Lisp_Misc_Float: | |
227 | return Qfloat; | |
228 | } | |
229 | abort (); | |
230 | ||
231 | case Lisp_Vectorlike: | |
232 | if (GC_WINDOW_CONFIGURATIONP (object)) | |
233 | return Qwindow_configuration; | |
234 | if (GC_PROCESSP (object)) | |
235 | return Qprocess; | |
236 | if (GC_WINDOWP (object)) | |
237 | return Qwindow; | |
238 | if (GC_SUBRP (object)) | |
239 | return Qsubr; | |
240 | if (GC_COMPILEDP (object)) | |
241 | return Qcompiled_function; | |
242 | if (GC_BUFFERP (object)) | |
243 | return Qbuffer; | |
fc67d5be KH |
244 | if (GC_CHAR_TABLE_P (object)) |
245 | return Qchar_table; | |
246 | if (GC_BOOL_VECTOR_P (object)) | |
247 | return Qbool_vector; | |
39bcc759 RS |
248 | if (GC_FRAMEP (object)) |
249 | return Qframe; | |
39bcc759 RS |
250 | return Qvector; |
251 | ||
252 | #ifdef LISP_FLOAT_TYPE | |
253 | case Lisp_Float: | |
254 | return Qfloat; | |
255 | #endif | |
256 | ||
257 | default: | |
258 | abort (); | |
259 | } | |
260 | } | |
261 | ||
c2124165 | 262 | DEFUN ("consp", Fconsp, Sconsp, 1, 1, 0, "Return t if OBJECT is a cons cell.") |
39bcc759 RS |
263 | (object) |
264 | Lisp_Object object; | |
7921925c | 265 | { |
39bcc759 | 266 | if (CONSP (object)) |
7921925c JB |
267 | return Qt; |
268 | return Qnil; | |
269 | } | |
270 | ||
25638b07 RS |
271 | DEFUN ("atom", Fatom, Satom, 1, 1, 0, |
272 | "Return t if OBJECT is not a cons cell. This includes nil.") | |
39bcc759 RS |
273 | (object) |
274 | Lisp_Object object; | |
7921925c | 275 | { |
39bcc759 | 276 | if (CONSP (object)) |
7921925c JB |
277 | return Qnil; |
278 | return Qt; | |
279 | } | |
280 | ||
25638b07 RS |
281 | DEFUN ("listp", Flistp, Slistp, 1, 1, 0, |
282 | "Return t if OBJECT is a list. This includes nil.") | |
39bcc759 RS |
283 | (object) |
284 | Lisp_Object object; | |
7921925c | 285 | { |
39bcc759 | 286 | if (CONSP (object) || NILP (object)) |
7921925c JB |
287 | return Qt; |
288 | return Qnil; | |
289 | } | |
290 | ||
25638b07 RS |
291 | DEFUN ("nlistp", Fnlistp, Snlistp, 1, 1, 0, |
292 | "Return t if OBJECT is not a list. Lists include nil.") | |
39bcc759 RS |
293 | (object) |
294 | Lisp_Object object; | |
7921925c | 295 | { |
39bcc759 | 296 | if (CONSP (object) || NILP (object)) |
7921925c JB |
297 | return Qnil; |
298 | return Qt; | |
299 | } | |
300 | \f | |
25638b07 RS |
301 | DEFUN ("symbolp", Fsymbolp, Ssymbolp, 1, 1, 0, |
302 | "Return t if OBJECT is a symbol.") | |
39bcc759 RS |
303 | (object) |
304 | Lisp_Object object; | |
7921925c | 305 | { |
39bcc759 | 306 | if (SYMBOLP (object)) |
7921925c JB |
307 | return Qt; |
308 | return Qnil; | |
309 | } | |
310 | ||
25638b07 RS |
311 | DEFUN ("vectorp", Fvectorp, Svectorp, 1, 1, 0, |
312 | "Return t if OBJECT is a vector.") | |
39bcc759 RS |
313 | (object) |
314 | Lisp_Object object; | |
7921925c | 315 | { |
39bcc759 | 316 | if (VECTORP (object)) |
7921925c JB |
317 | return Qt; |
318 | return Qnil; | |
319 | } | |
320 | ||
25638b07 RS |
321 | DEFUN ("stringp", Fstringp, Sstringp, 1, 1, 0, |
322 | "Return t if OBJECT is a string.") | |
39bcc759 RS |
323 | (object) |
324 | Lisp_Object object; | |
7921925c | 325 | { |
39bcc759 | 326 | if (STRINGP (object)) |
7921925c JB |
327 | return Qt; |
328 | return Qnil; | |
329 | } | |
330 | ||
25638b07 RS |
331 | DEFUN ("multibyte-string-p", Fmultibyte_string_p, Smultibyte_string_p, |
332 | 1, 1, 0, "Return t if OBJECT is a multibyte string.") | |
333 | (object) | |
334 | Lisp_Object object; | |
335 | { | |
336 | if (STRINGP (object) && STRING_MULTIBYTE (object)) | |
337 | return Qt; | |
338 | return Qnil; | |
339 | } | |
340 | ||
341 | DEFUN ("char-table-p", Fchar_table_p, Schar_table_p, 1, 1, 0, | |
342 | "Return t if OBJECT is a char-table.") | |
4d276982 RS |
343 | (object) |
344 | Lisp_Object object; | |
345 | { | |
346 | if (CHAR_TABLE_P (object)) | |
347 | return Qt; | |
348 | return Qnil; | |
349 | } | |
350 | ||
7f0edce7 RS |
351 | DEFUN ("vector-or-char-table-p", Fvector_or_char_table_p, |
352 | Svector_or_char_table_p, 1, 1, 0, | |
c2124165 | 353 | "Return t if OBJECT is a char-table or vector.") |
7f0edce7 RS |
354 | (object) |
355 | Lisp_Object object; | |
356 | { | |
357 | if (VECTORP (object) || CHAR_TABLE_P (object)) | |
358 | return Qt; | |
359 | return Qnil; | |
360 | } | |
361 | ||
c2124165 | 362 | DEFUN ("bool-vector-p", Fbool_vector_p, Sbool_vector_p, 1, 1, 0, "Return t if OBJECT is a bool-vector.") |
4d276982 RS |
363 | (object) |
364 | Lisp_Object object; | |
365 | { | |
366 | if (BOOL_VECTOR_P (object)) | |
367 | return Qt; | |
368 | return Qnil; | |
369 | } | |
370 | ||
c2124165 | 371 | DEFUN ("arrayp", Farrayp, Sarrayp, 1, 1, 0, "Return t if OBJECT is an array (string or vector).") |
39bcc759 RS |
372 | (object) |
373 | Lisp_Object object; | |
7921925c | 374 | { |
a9729926 RS |
375 | if (VECTORP (object) || STRINGP (object) |
376 | || CHAR_TABLE_P (object) || BOOL_VECTOR_P (object)) | |
7921925c JB |
377 | return Qt; |
378 | return Qnil; | |
379 | } | |
380 | ||
381 | DEFUN ("sequencep", Fsequencep, Ssequencep, 1, 1, 0, | |
c2124165 | 382 | "Return t if OBJECT is a sequence (list or array).") |
39bcc759 RS |
383 | (object) |
384 | register Lisp_Object object; | |
7921925c | 385 | { |
4d276982 RS |
386 | if (CONSP (object) || NILP (object) || VECTORP (object) || STRINGP (object) |
387 | || CHAR_TABLE_P (object) || BOOL_VECTOR_P (object)) | |
7921925c JB |
388 | return Qt; |
389 | return Qnil; | |
390 | } | |
391 | ||
c2124165 | 392 | DEFUN ("bufferp", Fbufferp, Sbufferp, 1, 1, 0, "Return t if OBJECT is an editor buffer.") |
39bcc759 RS |
393 | (object) |
394 | Lisp_Object object; | |
7921925c | 395 | { |
39bcc759 | 396 | if (BUFFERP (object)) |
7921925c JB |
397 | return Qt; |
398 | return Qnil; | |
399 | } | |
400 | ||
c2124165 | 401 | DEFUN ("markerp", Fmarkerp, Smarkerp, 1, 1, 0, "Return t if OBJECT is a marker (editor pointer).") |
39bcc759 RS |
402 | (object) |
403 | Lisp_Object object; | |
7921925c | 404 | { |
39bcc759 | 405 | if (MARKERP (object)) |
7921925c JB |
406 | return Qt; |
407 | return Qnil; | |
408 | } | |
409 | ||
c2124165 | 410 | DEFUN ("subrp", Fsubrp, Ssubrp, 1, 1, 0, "Return t if OBJECT is a built-in function.") |
39bcc759 RS |
411 | (object) |
412 | Lisp_Object object; | |
7921925c | 413 | { |
39bcc759 | 414 | if (SUBRP (object)) |
7921925c JB |
415 | return Qt; |
416 | return Qnil; | |
417 | } | |
418 | ||
dbc4e1c1 | 419 | DEFUN ("byte-code-function-p", Fbyte_code_function_p, Sbyte_code_function_p, |
c2124165 | 420 | 1, 1, 0, "Return t if OBJECT is a byte-compiled function object.") |
39bcc759 RS |
421 | (object) |
422 | Lisp_Object object; | |
7921925c | 423 | { |
39bcc759 | 424 | if (COMPILEDP (object)) |
7921925c JB |
425 | return Qt; |
426 | return Qnil; | |
427 | } | |
428 | ||
0321d75c | 429 | DEFUN ("char-or-string-p", Fchar_or_string_p, Schar_or_string_p, 1, 1, 0, |
c2124165 | 430 | "Return t if OBJECT is a character (an integer) or a string.") |
39bcc759 RS |
431 | (object) |
432 | register Lisp_Object object; | |
7921925c | 433 | { |
39bcc759 | 434 | if (INTEGERP (object) || STRINGP (object)) |
7921925c JB |
435 | return Qt; |
436 | return Qnil; | |
437 | } | |
438 | \f | |
c2124165 | 439 | DEFUN ("integerp", Fintegerp, Sintegerp, 1, 1, 0, "Return t if OBJECT is an integer.") |
39bcc759 RS |
440 | (object) |
441 | Lisp_Object object; | |
7921925c | 442 | { |
39bcc759 | 443 | if (INTEGERP (object)) |
7921925c JB |
444 | return Qt; |
445 | return Qnil; | |
446 | } | |
447 | ||
464f8898 | 448 | DEFUN ("integer-or-marker-p", Finteger_or_marker_p, Sinteger_or_marker_p, 1, 1, 0, |
c2124165 | 449 | "Return t if OBJECT is an integer or a marker (editor pointer).") |
39bcc759 RS |
450 | (object) |
451 | register Lisp_Object object; | |
7921925c | 452 | { |
39bcc759 | 453 | if (MARKERP (object) || INTEGERP (object)) |
7921925c JB |
454 | return Qt; |
455 | return Qnil; | |
456 | } | |
457 | ||
0321d75c | 458 | DEFUN ("natnump", Fnatnump, Snatnump, 1, 1, 0, |
c2124165 | 459 | "Return t if OBJECT is a nonnegative integer.") |
39bcc759 RS |
460 | (object) |
461 | Lisp_Object object; | |
7921925c | 462 | { |
39bcc759 | 463 | if (NATNUMP (object)) |
7921925c JB |
464 | return Qt; |
465 | return Qnil; | |
466 | } | |
467 | ||
468 | DEFUN ("numberp", Fnumberp, Snumberp, 1, 1, 0, | |
c2124165 | 469 | "Return t if OBJECT is a number (floating point or integer).") |
39bcc759 RS |
470 | (object) |
471 | Lisp_Object object; | |
7921925c | 472 | { |
39bcc759 | 473 | if (NUMBERP (object)) |
7921925c | 474 | return Qt; |
dbc4e1c1 JB |
475 | else |
476 | return Qnil; | |
7921925c JB |
477 | } |
478 | ||
479 | DEFUN ("number-or-marker-p", Fnumber_or_marker_p, | |
480 | Snumber_or_marker_p, 1, 1, 0, | |
c2124165 | 481 | "Return t if OBJECT is a number or a marker.") |
39bcc759 RS |
482 | (object) |
483 | Lisp_Object object; | |
7921925c | 484 | { |
39bcc759 | 485 | if (NUMBERP (object) || MARKERP (object)) |
7921925c JB |
486 | return Qt; |
487 | return Qnil; | |
488 | } | |
464f8898 RS |
489 | |
490 | #ifdef LISP_FLOAT_TYPE | |
491 | DEFUN ("floatp", Ffloatp, Sfloatp, 1, 1, 0, | |
c2124165 | 492 | "Return t if OBJECT is a floating point number.") |
39bcc759 RS |
493 | (object) |
494 | Lisp_Object object; | |
464f8898 | 495 | { |
39bcc759 | 496 | if (FLOATP (object)) |
464f8898 RS |
497 | return Qt; |
498 | return Qnil; | |
499 | } | |
7921925c JB |
500 | #endif /* LISP_FLOAT_TYPE */ |
501 | \f | |
502 | /* Extract and set components of lists */ | |
503 | ||
504 | DEFUN ("car", Fcar, Scar, 1, 1, 0, | |
e1960a18 | 505 | "Return the car of LIST. If arg is nil, return nil.\n\ |
7921925c JB |
506 | Error if arg is not nil and not a cons cell. See also `car-safe'.") |
507 | (list) | |
508 | register Lisp_Object list; | |
509 | { | |
510 | while (1) | |
511 | { | |
e9ebc175 | 512 | if (CONSP (list)) |
7921925c JB |
513 | return XCONS (list)->car; |
514 | else if (EQ (list, Qnil)) | |
515 | return Qnil; | |
516 | else | |
517 | list = wrong_type_argument (Qlistp, list); | |
518 | } | |
519 | } | |
520 | ||
521 | DEFUN ("car-safe", Fcar_safe, Scar_safe, 1, 1, 0, | |
522 | "Return the car of OBJECT if it is a cons cell, or else nil.") | |
523 | (object) | |
524 | Lisp_Object object; | |
525 | { | |
e9ebc175 | 526 | if (CONSP (object)) |
7921925c JB |
527 | return XCONS (object)->car; |
528 | else | |
529 | return Qnil; | |
530 | } | |
531 | ||
532 | DEFUN ("cdr", Fcdr, Scdr, 1, 1, 0, | |
e1960a18 | 533 | "Return the cdr of LIST. If arg is nil, return nil.\n\ |
7921925c JB |
534 | Error if arg is not nil and not a cons cell. See also `cdr-safe'.") |
535 | ||
536 | (list) | |
537 | register Lisp_Object list; | |
538 | { | |
539 | while (1) | |
540 | { | |
e9ebc175 | 541 | if (CONSP (list)) |
7921925c JB |
542 | return XCONS (list)->cdr; |
543 | else if (EQ (list, Qnil)) | |
544 | return Qnil; | |
545 | else | |
546 | list = wrong_type_argument (Qlistp, list); | |
547 | } | |
548 | } | |
549 | ||
550 | DEFUN ("cdr-safe", Fcdr_safe, Scdr_safe, 1, 1, 0, | |
b7abc8fa | 551 | "Return the cdr of OBJECT if it is a cons cell, or else nil.") |
7921925c JB |
552 | (object) |
553 | Lisp_Object object; | |
554 | { | |
e9ebc175 | 555 | if (CONSP (object)) |
7921925c JB |
556 | return XCONS (object)->cdr; |
557 | else | |
558 | return Qnil; | |
559 | } | |
560 | ||
561 | DEFUN ("setcar", Fsetcar, Ssetcar, 2, 2, 0, | |
e1960a18 | 562 | "Set the car of CELL to be NEWCAR. Returns NEWCAR.") |
7921925c JB |
563 | (cell, newcar) |
564 | register Lisp_Object cell, newcar; | |
565 | { | |
e9ebc175 | 566 | if (!CONSP (cell)) |
7921925c JB |
567 | cell = wrong_type_argument (Qconsp, cell); |
568 | ||
569 | CHECK_IMPURE (cell); | |
570 | XCONS (cell)->car = newcar; | |
571 | return newcar; | |
572 | } | |
573 | ||
574 | DEFUN ("setcdr", Fsetcdr, Ssetcdr, 2, 2, 0, | |
e1960a18 | 575 | "Set the cdr of CELL to be NEWCDR. Returns NEWCDR.") |
7921925c JB |
576 | (cell, newcdr) |
577 | register Lisp_Object cell, newcdr; | |
578 | { | |
e9ebc175 | 579 | if (!CONSP (cell)) |
7921925c JB |
580 | cell = wrong_type_argument (Qconsp, cell); |
581 | ||
582 | CHECK_IMPURE (cell); | |
583 | XCONS (cell)->cdr = newcdr; | |
584 | return newcdr; | |
585 | } | |
586 | \f | |
587 | /* Extract and set components of symbols */ | |
588 | ||
c2124165 | 589 | DEFUN ("boundp", Fboundp, Sboundp, 1, 1, 0, "Return t if SYMBOL's value is not void.") |
d9c2a0f2 EN |
590 | (symbol) |
591 | register Lisp_Object symbol; | |
7921925c JB |
592 | { |
593 | Lisp_Object valcontents; | |
d9c2a0f2 | 594 | CHECK_SYMBOL (symbol, 0); |
7921925c | 595 | |
d9c2a0f2 | 596 | valcontents = XSYMBOL (symbol)->value; |
7921925c | 597 | |
aabf6bec KH |
598 | if (BUFFER_LOCAL_VALUEP (valcontents) |
599 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 600 | valcontents = swap_in_symval_forwarding (symbol, valcontents); |
7921925c | 601 | |
1bfcade3 | 602 | return (EQ (valcontents, Qunbound) ? Qnil : Qt); |
7921925c JB |
603 | } |
604 | ||
c2124165 | 605 | DEFUN ("fboundp", Ffboundp, Sfboundp, 1, 1, 0, "Return t if SYMBOL's function definition is not void.") |
d9c2a0f2 EN |
606 | (symbol) |
607 | register Lisp_Object symbol; | |
7921925c | 608 | { |
d9c2a0f2 EN |
609 | CHECK_SYMBOL (symbol, 0); |
610 | return (EQ (XSYMBOL (symbol)->function, Qunbound) ? Qnil : Qt); | |
7921925c JB |
611 | } |
612 | ||
613 | DEFUN ("makunbound", Fmakunbound, Smakunbound, 1, 1, 0, "Make SYMBOL's value be void.") | |
d9c2a0f2 EN |
614 | (symbol) |
615 | register Lisp_Object symbol; | |
7921925c | 616 | { |
d9c2a0f2 | 617 | CHECK_SYMBOL (symbol, 0); |
5c5aad07 KH |
618 | if (NILP (symbol) || EQ (symbol, Qt) |
619 | || (XSYMBOL (symbol)->name->data[0] == ':' | |
899cb8f0 | 620 | && EQ (XSYMBOL (symbol)->obarray, initial_obarray) |
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 | { |
32f532b7 | 695 | definition = Ffset (symbol, definition); |
d9c2a0f2 | 696 | LOADHIST_ATTACH (symbol); |
73e0d965 | 697 | return definition; |
fc08c367 RS |
698 | } |
699 | ||
7921925c JB |
700 | DEFUN ("setplist", Fsetplist, Ssetplist, 2, 2, 0, |
701 | "Set SYMBOL's property list to NEWVAL, and return NEWVAL.") | |
d9c2a0f2 EN |
702 | (symbol, newplist) |
703 | register Lisp_Object symbol, newplist; | |
7921925c | 704 | { |
d9c2a0f2 EN |
705 | CHECK_SYMBOL (symbol, 0); |
706 | XSYMBOL (symbol)->plist = newplist; | |
7921925c JB |
707 | return newplist; |
708 | } | |
ffd56f97 | 709 | |
7921925c JB |
710 | \f |
711 | /* Getting and setting values of symbols */ | |
712 | ||
713 | /* Given the raw contents of a symbol value cell, | |
714 | return the Lisp value of the symbol. | |
715 | This does not handle buffer-local variables; use | |
716 | swap_in_symval_forwarding for that. */ | |
717 | ||
718 | Lisp_Object | |
719 | do_symval_forwarding (valcontents) | |
720 | register Lisp_Object valcontents; | |
721 | { | |
722 | register Lisp_Object val; | |
46b2ac21 KH |
723 | int offset; |
724 | if (MISCP (valcontents)) | |
324a6eef | 725 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
726 | { |
727 | case Lisp_Misc_Intfwd: | |
728 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
729 | return val; | |
7921925c | 730 | |
46b2ac21 KH |
731 | case Lisp_Misc_Boolfwd: |
732 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
7921925c | 733 | |
46b2ac21 KH |
734 | case Lisp_Misc_Objfwd: |
735 | return *XOBJFWD (valcontents)->objvar; | |
7921925c | 736 | |
46b2ac21 KH |
737 | case Lisp_Misc_Buffer_Objfwd: |
738 | offset = XBUFFER_OBJFWD (valcontents)->offset; | |
739 | return *(Lisp_Object *)(offset + (char *)current_buffer); | |
7403b5c8 | 740 | |
e5f8af9e KH |
741 | case Lisp_Misc_Kboard_Objfwd: |
742 | offset = XKBOARD_OBJFWD (valcontents)->offset; | |
743 | return *(Lisp_Object *)(offset + (char *)current_kboard); | |
46b2ac21 | 744 | } |
7921925c JB |
745 | return valcontents; |
746 | } | |
747 | ||
d9c2a0f2 EN |
748 | /* Store NEWVAL into SYMBOL, where VALCONTENTS is found in the value cell |
749 | of SYMBOL. If SYMBOL is buffer-local, VALCONTENTS should be the | |
7921925c JB |
750 | buffer-independent contents of the value cell: forwarded just one |
751 | step past the buffer-localness. */ | |
752 | ||
753 | void | |
d9c2a0f2 EN |
754 | store_symval_forwarding (symbol, valcontents, newval) |
755 | Lisp_Object symbol; | |
7921925c JB |
756 | register Lisp_Object valcontents, newval; |
757 | { | |
0220c518 | 758 | switch (SWITCH_ENUM_CAST (XTYPE (valcontents))) |
7921925c | 759 | { |
46b2ac21 | 760 | case Lisp_Misc: |
324a6eef | 761 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
762 | { |
763 | case Lisp_Misc_Intfwd: | |
764 | CHECK_NUMBER (newval, 1); | |
765 | *XINTFWD (valcontents)->intvar = XINT (newval); | |
e6c82a8d RS |
766 | if (*XINTFWD (valcontents)->intvar != XINT (newval)) |
767 | error ("Value out of range for variable `%s'", | |
d9c2a0f2 | 768 | XSYMBOL (symbol)->name->data); |
46b2ac21 KH |
769 | break; |
770 | ||
771 | case Lisp_Misc_Boolfwd: | |
772 | *XBOOLFWD (valcontents)->boolvar = NILP (newval) ? 0 : 1; | |
773 | break; | |
774 | ||
775 | case Lisp_Misc_Objfwd: | |
776 | *XOBJFWD (valcontents)->objvar = newval; | |
777 | break; | |
778 | ||
779 | case Lisp_Misc_Buffer_Objfwd: | |
780 | { | |
781 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
782 | Lisp_Object type; | |
783 | ||
784 | type = *(Lisp_Object *)(offset + (char *)&buffer_local_types); | |
984ef137 KH |
785 | if (XINT (type) == -1) |
786 | error ("Variable %s is read-only", XSYMBOL (symbol)->name->data); | |
787 | ||
46b2ac21 KH |
788 | if (! NILP (type) && ! NILP (newval) |
789 | && XTYPE (newval) != XINT (type)) | |
790 | buffer_slot_type_mismatch (offset); | |
791 | ||
792 | *(Lisp_Object *)(offset + (char *)current_buffer) = newval; | |
46b2ac21 | 793 | } |
7403b5c8 KH |
794 | break; |
795 | ||
e5f8af9e KH |
796 | case Lisp_Misc_Kboard_Objfwd: |
797 | (*(Lisp_Object *)((char *)current_kboard | |
798 | + XKBOARD_OBJFWD (valcontents)->offset)) | |
7403b5c8 KH |
799 | = newval; |
800 | break; | |
801 | ||
46b2ac21 KH |
802 | default: |
803 | goto def; | |
804 | } | |
7921925c JB |
805 | break; |
806 | ||
7921925c | 807 | default: |
46b2ac21 | 808 | def: |
d9c2a0f2 | 809 | valcontents = XSYMBOL (symbol)->value; |
e9ebc175 KH |
810 | if (BUFFER_LOCAL_VALUEP (valcontents) |
811 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
b0c2d1c6 | 812 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue = newval; |
7921925c | 813 | else |
d9c2a0f2 | 814 | XSYMBOL (symbol)->value = newval; |
7921925c JB |
815 | } |
816 | } | |
817 | ||
d9c2a0f2 | 818 | /* Set up the buffer-local symbol SYMBOL for validity in the current |
7921925c JB |
819 | buffer. VALCONTENTS is the contents of its value cell. |
820 | Return the value forwarded one step past the buffer-local indicator. */ | |
821 | ||
822 | static Lisp_Object | |
d9c2a0f2 EN |
823 | swap_in_symval_forwarding (symbol, valcontents) |
824 | Lisp_Object symbol, valcontents; | |
7921925c | 825 | { |
7403b5c8 | 826 | /* valcontents is a pointer to a struct resembling the cons |
7921925c | 827 | (REALVALUE BUFFER CURRENT-ALIST-ELEMENT . DEFAULT-VALUE)). |
7403b5c8 | 828 | |
7921925c | 829 | CURRENT-ALIST-ELEMENT is a pointer to an element of BUFFER's |
533984a8 JB |
830 | local_var_alist, that being the element whose car is this |
831 | variable. Or it can be a pointer to the | |
832 | (CURRENT-ALIST-ELEMENT . DEFAULT-VALUE), if BUFFER does not have | |
833 | an element in its alist for this variable. | |
834 | ||
835 | If the current buffer is not BUFFER, we store the current | |
836 | REALVALUE value into CURRENT-ALIST-ELEMENT, then find the | |
837 | appropriate alist element for the buffer now current and set up | |
838 | CURRENT-ALIST-ELEMENT. Then we set REALVALUE out of that | |
839 | element, and store into BUFFER. | |
840 | ||
7921925c JB |
841 | Note that REALVALUE can be a forwarding pointer. */ |
842 | ||
843 | register Lisp_Object tem1; | |
b0c2d1c6 | 844 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
7921925c | 845 | |
b0c2d1c6 | 846 | if (NILP (tem1) || current_buffer != XBUFFER (tem1) |
1cc04aed | 847 | || !EQ (selected_frame, XBUFFER_LOCAL_VALUE (valcontents)->frame)) |
7921925c | 848 | { |
b0c2d1c6 | 849 | tem1 = XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car; |
8d4afcac | 850 | Fsetcdr (tem1, |
b0c2d1c6 | 851 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); |
d9c2a0f2 | 852 | tem1 = assq_no_quit (symbol, current_buffer->local_var_alist); |
b0c2d1c6 RS |
853 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; |
854 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
a33ef3ab | 855 | if (NILP (tem1)) |
b0c2d1c6 RS |
856 | { |
857 | if (XBUFFER_LOCAL_VALUE (valcontents)->check_frame) | |
1cc04aed | 858 | tem1 = assq_no_quit (symbol, XFRAME (selected_frame)->param_alist); |
b0c2d1c6 RS |
859 | if (! NILP (tem1)) |
860 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 1; | |
861 | else | |
862 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
863 | } | |
864 | else | |
865 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 1; | |
866 | ||
867 | XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car = tem1; | |
868 | XSETBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer, current_buffer); | |
1cc04aed | 869 | XBUFFER_LOCAL_VALUE (valcontents)->frame = selected_frame; |
b0c2d1c6 RS |
870 | store_symval_forwarding (symbol, |
871 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue, | |
8d4afcac | 872 | Fcdr (tem1)); |
7921925c | 873 | } |
b0c2d1c6 | 874 | return XBUFFER_LOCAL_VALUE (valcontents)->realvalue; |
7921925c JB |
875 | } |
876 | \f | |
14e76af9 JB |
877 | /* Find the value of a symbol, returning Qunbound if it's not bound. |
878 | This is helpful for code which just wants to get a variable's value | |
8e6208c5 | 879 | if it has one, without signaling an error. |
14e76af9 JB |
880 | Note that it must not be possible to quit |
881 | within this function. Great care is required for this. */ | |
7921925c | 882 | |
14e76af9 | 883 | Lisp_Object |
d9c2a0f2 EN |
884 | find_symbol_value (symbol) |
885 | Lisp_Object symbol; | |
7921925c | 886 | { |
dd8daec5 | 887 | register Lisp_Object valcontents; |
7921925c | 888 | register Lisp_Object val; |
d9c2a0f2 EN |
889 | CHECK_SYMBOL (symbol, 0); |
890 | valcontents = XSYMBOL (symbol)->value; | |
7921925c | 891 | |
aabf6bec KH |
892 | if (BUFFER_LOCAL_VALUEP (valcontents) |
893 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 894 | valcontents = swap_in_symval_forwarding (symbol, valcontents); |
7921925c | 895 | |
536b772a KH |
896 | if (MISCP (valcontents)) |
897 | { | |
324a6eef | 898 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
899 | { |
900 | case Lisp_Misc_Intfwd: | |
901 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
902 | return val; | |
7921925c | 903 | |
46b2ac21 KH |
904 | case Lisp_Misc_Boolfwd: |
905 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
7921925c | 906 | |
46b2ac21 KH |
907 | case Lisp_Misc_Objfwd: |
908 | return *XOBJFWD (valcontents)->objvar; | |
7921925c | 909 | |
46b2ac21 KH |
910 | case Lisp_Misc_Buffer_Objfwd: |
911 | return *(Lisp_Object *)(XBUFFER_OBJFWD (valcontents)->offset | |
912 | + (char *)current_buffer); | |
7403b5c8 | 913 | |
e5f8af9e KH |
914 | case Lisp_Misc_Kboard_Objfwd: |
915 | return *(Lisp_Object *)(XKBOARD_OBJFWD (valcontents)->offset | |
916 | + (char *)current_kboard); | |
46b2ac21 | 917 | } |
7921925c JB |
918 | } |
919 | ||
920 | return valcontents; | |
921 | } | |
922 | ||
14e76af9 JB |
923 | DEFUN ("symbol-value", Fsymbol_value, Ssymbol_value, 1, 1, 0, |
924 | "Return SYMBOL's value. Error if that is void.") | |
d9c2a0f2 EN |
925 | (symbol) |
926 | Lisp_Object symbol; | |
14e76af9 | 927 | { |
0671d7c0 | 928 | Lisp_Object val; |
14e76af9 | 929 | |
d9c2a0f2 | 930 | val = find_symbol_value (symbol); |
14e76af9 | 931 | if (EQ (val, Qunbound)) |
d9c2a0f2 | 932 | return Fsignal (Qvoid_variable, Fcons (symbol, Qnil)); |
14e76af9 JB |
933 | else |
934 | return val; | |
935 | } | |
936 | ||
7921925c JB |
937 | DEFUN ("set", Fset, Sset, 2, 2, 0, |
938 | "Set SYMBOL's value to NEWVAL, and return NEWVAL.") | |
d9c2a0f2 EN |
939 | (symbol, newval) |
940 | register Lisp_Object symbol, newval; | |
05ef7169 RS |
941 | { |
942 | return set_internal (symbol, newval, 0); | |
943 | } | |
944 | ||
25638b07 | 945 | /* Store the value NEWVAL into SYMBOL. |
05ef7169 RS |
946 | If BINDFLAG is zero, then if this symbol is supposed to become |
947 | local in every buffer where it is set, then we make it local. | |
948 | If BINDFLAG is nonzero, we don't do that. */ | |
949 | ||
950 | Lisp_Object | |
951 | set_internal (symbol, newval, bindflag) | |
952 | register Lisp_Object symbol, newval; | |
953 | int bindflag; | |
7921925c | 954 | { |
1bfcade3 | 955 | int voide = EQ (newval, Qunbound); |
7921925c | 956 | |
7921925c | 957 | register Lisp_Object valcontents, tem1, current_alist_element; |
7921925c | 958 | |
d9c2a0f2 | 959 | CHECK_SYMBOL (symbol, 0); |
5c5aad07 KH |
960 | if (NILP (symbol) || EQ (symbol, Qt) |
961 | || (XSYMBOL (symbol)->name->data[0] == ':' | |
899cb8f0 | 962 | && EQ (XSYMBOL (symbol)->obarray, initial_obarray) |
120821e1 | 963 | && keyword_symbols_constant_flag && ! EQ (newval, symbol))) |
d9c2a0f2 EN |
964 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); |
965 | valcontents = XSYMBOL (symbol)->value; | |
7921925c | 966 | |
e9ebc175 | 967 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 968 | { |
46b2ac21 | 969 | register int idx = XBUFFER_OBJFWD (valcontents)->offset; |
865c050f KH |
970 | register int mask = XINT (*((Lisp_Object *) |
971 | (idx + (char *)&buffer_local_flags))); | |
33fa85e0 | 972 | if (mask > 0 && ! bindflag) |
7921925c JB |
973 | current_buffer->local_var_flags |= mask; |
974 | } | |
975 | ||
e9ebc175 KH |
976 | else if (BUFFER_LOCAL_VALUEP (valcontents) |
977 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c | 978 | { |
8d4afcac KH |
979 | /* valcontents is actually a pointer to a struct resembling a cons, |
980 | with contents something like: | |
d8cafeb5 JB |
981 | (REALVALUE BUFFER CURRENT-ALIST-ELEMENT . DEFAULT-VALUE). |
982 | ||
983 | BUFFER is the last buffer for which this symbol's value was | |
984 | made up to date. | |
985 | ||
986 | CURRENT-ALIST-ELEMENT is a pointer to an element of BUFFER's | |
987 | local_var_alist, that being the element whose car is this | |
988 | variable. Or it can be a pointer to the | |
989 | (CURRENT-ALIST-ELEMENT . DEFAULT-VALUE), if BUFFER does not | |
990 | have an element in its alist for this variable (that is, if | |
991 | BUFFER sees the default value of this variable). | |
992 | ||
993 | If we want to examine or set the value and BUFFER is current, | |
994 | we just examine or set REALVALUE. If BUFFER is not current, we | |
995 | store the current REALVALUE value into CURRENT-ALIST-ELEMENT, | |
996 | then find the appropriate alist element for the buffer now | |
997 | current and set up CURRENT-ALIST-ELEMENT. Then we set | |
998 | REALVALUE out of that element, and store into BUFFER. | |
999 | ||
1000 | If we are setting the variable and the current buffer does | |
1001 | not have an alist entry for this variable, an alist entry is | |
1002 | created. | |
1003 | ||
1004 | Note that REALVALUE can be a forwarding pointer. Each time | |
1005 | it is examined or set, forwarding must be done. */ | |
1006 | ||
1007 | /* What value are we caching right now? */ | |
b0c2d1c6 RS |
1008 | current_alist_element |
1009 | = XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car; | |
d8cafeb5 JB |
1010 | |
1011 | /* If the current buffer is not the buffer whose binding is | |
1012 | currently cached, or if it's a Lisp_Buffer_Local_Value and | |
1013 | we're looking at the default value, the cache is invalid; we | |
1014 | need to write it out, and find the new CURRENT-ALIST-ELEMENT. */ | |
b0c2d1c6 | 1015 | if (current_buffer != XBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer) |
1cc04aed | 1016 | || !EQ (selected_frame, XBUFFER_LOCAL_VALUE (valcontents)->frame) |
e9ebc175 | 1017 | || (BUFFER_LOCAL_VALUEP (valcontents) |
b06faa91 JB |
1018 | && EQ (XCONS (current_alist_element)->car, |
1019 | current_alist_element))) | |
7921925c | 1020 | { |
d8cafeb5 JB |
1021 | /* Write out the cached value for the old buffer; copy it |
1022 | back to its alist element. This works if the current | |
1023 | buffer only sees the default value, too. */ | |
1024 | Fsetcdr (current_alist_element, | |
b0c2d1c6 | 1025 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); |
7921925c | 1026 | |
d8cafeb5 | 1027 | /* Find the new value for CURRENT-ALIST-ELEMENT. */ |
d9c2a0f2 | 1028 | tem1 = Fassq (symbol, current_buffer->local_var_alist); |
b0c2d1c6 RS |
1029 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 1; |
1030 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; | |
1031 | ||
a33ef3ab | 1032 | if (NILP (tem1)) |
d8cafeb5 JB |
1033 | { |
1034 | /* This buffer still sees the default value. */ | |
1035 | ||
1036 | /* If the variable is a Lisp_Some_Buffer_Local_Value, | |
05ef7169 | 1037 | or if this is `let' rather than `set', |
d8cafeb5 JB |
1038 | make CURRENT-ALIST-ELEMENT point to itself, |
1039 | indicating that we're seeing the default value. */ | |
05ef7169 | 1040 | if (bindflag || SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
b0c2d1c6 RS |
1041 | { |
1042 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
1043 | ||
1044 | if (XBUFFER_LOCAL_VALUE (valcontents)->check_frame) | |
1cc04aed GM |
1045 | tem1 = Fassq (symbol, |
1046 | XFRAME (selected_frame)->param_alist); | |
d8cafeb5 | 1047 | |
b0c2d1c6 RS |
1048 | if (! NILP (tem1)) |
1049 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 1; | |
1050 | else | |
1051 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
1052 | } | |
05ef7169 RS |
1053 | /* If it's a Lisp_Buffer_Local_Value, being set not bound, |
1054 | give this buffer a new assoc for a local value and set | |
d8cafeb5 JB |
1055 | CURRENT-ALIST-ELEMENT to point to that. */ |
1056 | else | |
1057 | { | |
d9c2a0f2 | 1058 | tem1 = Fcons (symbol, Fcdr (current_alist_element)); |
b0c2d1c6 RS |
1059 | current_buffer->local_var_alist |
1060 | = Fcons (tem1, current_buffer->local_var_alist); | |
d8cafeb5 JB |
1061 | } |
1062 | } | |
b0c2d1c6 | 1063 | |
d8cafeb5 | 1064 | /* Cache the new buffer's assoc in CURRENT-ALIST-ELEMENT. */ |
b0c2d1c6 | 1065 | XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car |
8d4afcac | 1066 | = tem1; |
d8cafeb5 | 1067 | |
b0c2d1c6 RS |
1068 | /* Set BUFFER and FRAME for binding now loaded. */ |
1069 | XSETBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer, | |
8d4afcac | 1070 | current_buffer); |
1cc04aed | 1071 | XBUFFER_LOCAL_VALUE (valcontents)->frame = selected_frame; |
7921925c | 1072 | } |
b0c2d1c6 | 1073 | valcontents = XBUFFER_LOCAL_VALUE (valcontents)->realvalue; |
7921925c | 1074 | } |
d8cafeb5 | 1075 | |
7921925c JB |
1076 | /* If storing void (making the symbol void), forward only through |
1077 | buffer-local indicator, not through Lisp_Objfwd, etc. */ | |
1078 | if (voide) | |
d9c2a0f2 | 1079 | store_symval_forwarding (symbol, Qnil, newval); |
7921925c | 1080 | else |
d9c2a0f2 | 1081 | store_symval_forwarding (symbol, valcontents, newval); |
d8cafeb5 | 1082 | |
7921925c JB |
1083 | return newval; |
1084 | } | |
1085 | \f | |
1086 | /* Access or set a buffer-local symbol's default value. */ | |
1087 | ||
d9c2a0f2 | 1088 | /* Return the default value of SYMBOL, but don't check for voidness. |
1bfcade3 | 1089 | Return Qunbound if it is void. */ |
7921925c JB |
1090 | |
1091 | Lisp_Object | |
d9c2a0f2 EN |
1092 | default_value (symbol) |
1093 | Lisp_Object symbol; | |
7921925c JB |
1094 | { |
1095 | register Lisp_Object valcontents; | |
1096 | ||
d9c2a0f2 EN |
1097 | CHECK_SYMBOL (symbol, 0); |
1098 | valcontents = XSYMBOL (symbol)->value; | |
7921925c JB |
1099 | |
1100 | /* For a built-in buffer-local variable, get the default value | |
1101 | rather than letting do_symval_forwarding get the current value. */ | |
e9ebc175 | 1102 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1103 | { |
46b2ac21 | 1104 | register int idx = XBUFFER_OBJFWD (valcontents)->offset; |
7921925c | 1105 | |
865c050f | 1106 | if (XINT (*(Lisp_Object *) (idx + (char *) &buffer_local_flags)) != 0) |
7921925c JB |
1107 | return *(Lisp_Object *)(idx + (char *) &buffer_defaults); |
1108 | } | |
1109 | ||
1110 | /* Handle user-created local variables. */ | |
e9ebc175 KH |
1111 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1112 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c JB |
1113 | { |
1114 | /* If var is set up for a buffer that lacks a local value for it, | |
1115 | the current value is nominally the default value. | |
1116 | But the current value slot may be more up to date, since | |
1117 | ordinary setq stores just that slot. So use that. */ | |
1118 | Lisp_Object current_alist_element, alist_element_car; | |
1119 | current_alist_element | |
b0c2d1c6 | 1120 | = XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car; |
7921925c JB |
1121 | alist_element_car = XCONS (current_alist_element)->car; |
1122 | if (EQ (alist_element_car, current_alist_element)) | |
b0c2d1c6 | 1123 | return do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue); |
7921925c | 1124 | else |
b0c2d1c6 | 1125 | return XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr; |
7921925c JB |
1126 | } |
1127 | /* For other variables, get the current value. */ | |
1128 | return do_symval_forwarding (valcontents); | |
1129 | } | |
1130 | ||
1131 | DEFUN ("default-boundp", Fdefault_boundp, Sdefault_boundp, 1, 1, 0, | |
c2124165 | 1132 | "Return t if SYMBOL has a non-void default value.\n\ |
7921925c JB |
1133 | This is the value that is seen in buffers that do not have their own values\n\ |
1134 | for this variable.") | |
d9c2a0f2 EN |
1135 | (symbol) |
1136 | Lisp_Object symbol; | |
7921925c JB |
1137 | { |
1138 | register Lisp_Object value; | |
1139 | ||
d9c2a0f2 | 1140 | value = default_value (symbol); |
1bfcade3 | 1141 | return (EQ (value, Qunbound) ? Qnil : Qt); |
7921925c JB |
1142 | } |
1143 | ||
1144 | DEFUN ("default-value", Fdefault_value, Sdefault_value, 1, 1, 0, | |
1145 | "Return SYMBOL's default value.\n\ | |
1146 | This is the value that is seen in buffers that do not have their own values\n\ | |
1147 | for this variable. The default value is meaningful for variables with\n\ | |
1148 | local bindings in certain buffers.") | |
d9c2a0f2 EN |
1149 | (symbol) |
1150 | Lisp_Object symbol; | |
7921925c JB |
1151 | { |
1152 | register Lisp_Object value; | |
1153 | ||
d9c2a0f2 | 1154 | value = default_value (symbol); |
1bfcade3 | 1155 | if (EQ (value, Qunbound)) |
d9c2a0f2 | 1156 | return Fsignal (Qvoid_variable, Fcons (symbol, Qnil)); |
7921925c JB |
1157 | return value; |
1158 | } | |
1159 | ||
1160 | DEFUN ("set-default", Fset_default, Sset_default, 2, 2, 0, | |
1161 | "Set SYMBOL's default value to VAL. SYMBOL and VAL are evaluated.\n\ | |
1162 | The default value is seen in buffers that do not have their own values\n\ | |
1163 | for this variable.") | |
d9c2a0f2 EN |
1164 | (symbol, value) |
1165 | Lisp_Object symbol, value; | |
7921925c JB |
1166 | { |
1167 | register Lisp_Object valcontents, current_alist_element, alist_element_buffer; | |
1168 | ||
d9c2a0f2 EN |
1169 | CHECK_SYMBOL (symbol, 0); |
1170 | valcontents = XSYMBOL (symbol)->value; | |
7921925c JB |
1171 | |
1172 | /* Handle variables like case-fold-search that have special slots | |
1173 | in the buffer. Make them work apparently like Lisp_Buffer_Local_Value | |
1174 | variables. */ | |
e9ebc175 | 1175 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1176 | { |
46b2ac21 | 1177 | register int idx = XBUFFER_OBJFWD (valcontents)->offset; |
7921925c | 1178 | register struct buffer *b; |
865c050f KH |
1179 | register int mask = XINT (*((Lisp_Object *) |
1180 | (idx + (char *)&buffer_local_flags))); | |
7921925c | 1181 | |
984ef137 KH |
1182 | *(Lisp_Object *)(idx + (char *) &buffer_defaults) = value; |
1183 | ||
1184 | /* If this variable is not always local in all buffers, | |
1185 | set it in the buffers that don't nominally have a local value. */ | |
7921925c JB |
1186 | if (mask > 0) |
1187 | { | |
7921925c JB |
1188 | for (b = all_buffers; b; b = b->next) |
1189 | if (!(b->local_var_flags & mask)) | |
1190 | *(Lisp_Object *)(idx + (char *) b) = value; | |
1191 | } | |
1192 | return value; | |
1193 | } | |
1194 | ||
e9ebc175 KH |
1195 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1196 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 1197 | return Fset (symbol, value); |
7921925c JB |
1198 | |
1199 | /* Store new value into the DEFAULT-VALUE slot */ | |
b0c2d1c6 | 1200 | XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr = value; |
7921925c JB |
1201 | |
1202 | /* If that slot is current, we must set the REALVALUE slot too */ | |
8d4afcac | 1203 | current_alist_element |
b0c2d1c6 | 1204 | = XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car; |
7921925c JB |
1205 | alist_element_buffer = Fcar (current_alist_element); |
1206 | if (EQ (alist_element_buffer, current_alist_element)) | |
b0c2d1c6 | 1207 | store_symval_forwarding (symbol, XBUFFER_LOCAL_VALUE (valcontents)->realvalue, |
8d4afcac | 1208 | value); |
7921925c JB |
1209 | |
1210 | return value; | |
1211 | } | |
1212 | ||
1213 | DEFUN ("setq-default", Fsetq_default, Ssetq_default, 2, UNEVALLED, 0, | |
0412bf67 RS |
1214 | "Set the default value of variable VAR to VALUE.\n\ |
1215 | VAR, the variable name, is literal (not evaluated);\n\ | |
1216 | VALUE is an expression and it is evaluated.\n\ | |
1217 | The default value of a variable is seen in buffers\n\ | |
1218 | that do not have their own values for the variable.\n\ | |
1219 | \n\ | |
1220 | More generally, you can use multiple variables and values, as in\n\ | |
d9c2a0f2 EN |
1221 | (setq-default SYMBOL VALUE SYMBOL VALUE...)\n\ |
1222 | This sets each SYMBOL's default value to the corresponding VALUE.\n\ | |
1223 | The VALUE for the Nth SYMBOL can refer to the new default values\n\ | |
0412bf67 | 1224 | of previous SYMs.") |
7921925c JB |
1225 | (args) |
1226 | Lisp_Object args; | |
1227 | { | |
1228 | register Lisp_Object args_left; | |
d9c2a0f2 | 1229 | register Lisp_Object val, symbol; |
7921925c JB |
1230 | struct gcpro gcpro1; |
1231 | ||
a33ef3ab | 1232 | if (NILP (args)) |
7921925c JB |
1233 | return Qnil; |
1234 | ||
1235 | args_left = args; | |
1236 | GCPRO1 (args); | |
1237 | ||
1238 | do | |
1239 | { | |
1240 | val = Feval (Fcar (Fcdr (args_left))); | |
d9c2a0f2 EN |
1241 | symbol = Fcar (args_left); |
1242 | Fset_default (symbol, val); | |
7921925c JB |
1243 | args_left = Fcdr (Fcdr (args_left)); |
1244 | } | |
a33ef3ab | 1245 | while (!NILP (args_left)); |
7921925c JB |
1246 | |
1247 | UNGCPRO; | |
1248 | return val; | |
1249 | } | |
1250 | \f | |
a5ca2b75 JB |
1251 | /* Lisp functions for creating and removing buffer-local variables. */ |
1252 | ||
7921925c JB |
1253 | DEFUN ("make-variable-buffer-local", Fmake_variable_buffer_local, Smake_variable_buffer_local, |
1254 | 1, 1, "vMake Variable Buffer Local: ", | |
1255 | "Make VARIABLE have a separate value for each buffer.\n\ | |
1256 | At any time, the value for the current buffer is in effect.\n\ | |
1257 | There is also a default value which is seen in any buffer which has not yet\n\ | |
1258 | set its own value.\n\ | |
1259 | Using `set' or `setq' to set the variable causes it to have a separate value\n\ | |
1260 | for the current buffer if it was previously using the default value.\n\ | |
1261 | The function `default-value' gets the default value and `set-default' sets it.") | |
d9c2a0f2 EN |
1262 | (variable) |
1263 | register Lisp_Object variable; | |
7921925c | 1264 | { |
8d4afcac | 1265 | register Lisp_Object tem, valcontents, newval; |
7921925c | 1266 | |
d9c2a0f2 | 1267 | CHECK_SYMBOL (variable, 0); |
7921925c | 1268 | |
d9c2a0f2 EN |
1269 | valcontents = XSYMBOL (variable)->value; |
1270 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents)) | |
1271 | error ("Symbol %s may not be buffer-local", XSYMBOL (variable)->name->data); | |
7921925c | 1272 | |
e9ebc175 | 1273 | if (BUFFER_LOCAL_VALUEP (valcontents) || BUFFER_OBJFWDP (valcontents)) |
d9c2a0f2 | 1274 | return variable; |
e9ebc175 | 1275 | if (SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c | 1276 | { |
d9c2a0f2 EN |
1277 | XMISCTYPE (XSYMBOL (variable)->value) = Lisp_Misc_Buffer_Local_Value; |
1278 | return variable; | |
7921925c JB |
1279 | } |
1280 | if (EQ (valcontents, Qunbound)) | |
d9c2a0f2 EN |
1281 | XSYMBOL (variable)->value = Qnil; |
1282 | tem = Fcons (Qnil, Fsymbol_value (variable)); | |
7921925c | 1283 | XCONS (tem)->car = tem; |
8d4afcac | 1284 | newval = allocate_misc (); |
324a6eef | 1285 | XMISCTYPE (newval) = Lisp_Misc_Buffer_Local_Value; |
b0c2d1c6 RS |
1286 | XBUFFER_LOCAL_VALUE (newval)->realvalue = XSYMBOL (variable)->value; |
1287 | XBUFFER_LOCAL_VALUE (newval)->buffer = Fcurrent_buffer (); | |
1288 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
1289 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 1; | |
1290 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; | |
1291 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 0; | |
1292 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
d9c2a0f2 EN |
1293 | XSYMBOL (variable)->value = newval; |
1294 | return variable; | |
7921925c JB |
1295 | } |
1296 | ||
1297 | DEFUN ("make-local-variable", Fmake_local_variable, Smake_local_variable, | |
1298 | 1, 1, "vMake Local Variable: ", | |
1299 | "Make VARIABLE have a separate value in the current buffer.\n\ | |
1300 | Other buffers will continue to share a common default value.\n\ | |
a782f0d5 RS |
1301 | \(The buffer-local value of VARIABLE starts out as the same value\n\ |
1302 | VARIABLE previously had. If VARIABLE was void, it remains void.\)\n\ | |
05edf8bd KH |
1303 | See also `make-variable-buffer-local'.\n\ |
1304 | \n\ | |
7921925c JB |
1305 | If the variable is already arranged to become local when set,\n\ |
1306 | this function causes a local value to exist for this buffer,\n\ | |
62476adc RS |
1307 | just as setting the variable would do.\n\ |
1308 | \n\ | |
05edf8bd KH |
1309 | This function returns VARIABLE, and therefore\n\ |
1310 | (set (make-local-variable 'VARIABLE) VALUE-EXP)\n\ | |
1311 | works.\n\ | |
1312 | \n\ | |
62476adc RS |
1313 | Do not use `make-local-variable' to make a hook variable buffer-local.\n\ |
1314 | Use `make-local-hook' instead.") | |
d9c2a0f2 EN |
1315 | (variable) |
1316 | register Lisp_Object variable; | |
7921925c JB |
1317 | { |
1318 | register Lisp_Object tem, valcontents; | |
1319 | ||
d9c2a0f2 | 1320 | CHECK_SYMBOL (variable, 0); |
7921925c | 1321 | |
d9c2a0f2 EN |
1322 | valcontents = XSYMBOL (variable)->value; |
1323 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents)) | |
1324 | error ("Symbol %s may not be buffer-local", XSYMBOL (variable)->name->data); | |
7921925c | 1325 | |
e9ebc175 | 1326 | if (BUFFER_LOCAL_VALUEP (valcontents) || BUFFER_OBJFWDP (valcontents)) |
7921925c | 1327 | { |
d9c2a0f2 | 1328 | tem = Fboundp (variable); |
7403b5c8 | 1329 | |
7921925c JB |
1330 | /* Make sure the symbol has a local value in this particular buffer, |
1331 | by setting it to the same value it already has. */ | |
d9c2a0f2 EN |
1332 | Fset (variable, (EQ (tem, Qt) ? Fsymbol_value (variable) : Qunbound)); |
1333 | return variable; | |
7921925c | 1334 | } |
d9c2a0f2 | 1335 | /* Make sure symbol is set up to hold per-buffer values */ |
e9ebc175 | 1336 | if (!SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c | 1337 | { |
8d4afcac | 1338 | Lisp_Object newval; |
7921925c JB |
1339 | tem = Fcons (Qnil, do_symval_forwarding (valcontents)); |
1340 | XCONS (tem)->car = tem; | |
8d4afcac | 1341 | newval = allocate_misc (); |
324a6eef | 1342 | XMISCTYPE (newval) = Lisp_Misc_Some_Buffer_Local_Value; |
b0c2d1c6 RS |
1343 | XBUFFER_LOCAL_VALUE (newval)->realvalue = XSYMBOL (variable)->value; |
1344 | XBUFFER_LOCAL_VALUE (newval)->buffer = Qnil; | |
1345 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
1346 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; | |
1347 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; | |
1348 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 0; | |
1349 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
d9c2a0f2 | 1350 | XSYMBOL (variable)->value = newval; |
7921925c | 1351 | } |
d9c2a0f2 EN |
1352 | /* Make sure this buffer has its own value of symbol */ |
1353 | tem = Fassq (variable, current_buffer->local_var_alist); | |
a33ef3ab | 1354 | if (NILP (tem)) |
7921925c | 1355 | { |
a5d004a1 RS |
1356 | /* Swap out any local binding for some other buffer, and make |
1357 | sure the current value is permanently recorded, if it's the | |
1358 | default value. */ | |
d9c2a0f2 | 1359 | find_symbol_value (variable); |
a5d004a1 | 1360 | |
7921925c | 1361 | current_buffer->local_var_alist |
b0c2d1c6 | 1362 | = Fcons (Fcons (variable, XCONS (XBUFFER_LOCAL_VALUE (XSYMBOL (variable)->value)->cdr)->cdr), |
7921925c JB |
1363 | current_buffer->local_var_alist); |
1364 | ||
1365 | /* Make sure symbol does not think it is set up for this buffer; | |
1366 | force it to look once again for this buffer's value */ | |
1367 | { | |
8d4afcac | 1368 | Lisp_Object *pvalbuf; |
a5d004a1 | 1369 | |
d9c2a0f2 | 1370 | valcontents = XSYMBOL (variable)->value; |
a5d004a1 | 1371 | |
b0c2d1c6 | 1372 | pvalbuf = &XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
8d4afcac KH |
1373 | if (current_buffer == XBUFFER (*pvalbuf)) |
1374 | *pvalbuf = Qnil; | |
b0c2d1c6 | 1375 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; |
7921925c | 1376 | } |
7921925c | 1377 | } |
a5ca2b75 JB |
1378 | |
1379 | /* If the symbol forwards into a C variable, then swap in the | |
1380 | variable for this buffer immediately. If C code modifies the | |
1381 | variable before we swap in, then that new value will clobber the | |
1382 | default value the next time we swap. */ | |
b0c2d1c6 | 1383 | valcontents = XBUFFER_LOCAL_VALUE (XSYMBOL (variable)->value)->realvalue; |
e9ebc175 | 1384 | if (INTFWDP (valcontents) || BOOLFWDP (valcontents) || OBJFWDP (valcontents)) |
d9c2a0f2 | 1385 | swap_in_symval_forwarding (variable, XSYMBOL (variable)->value); |
a5ca2b75 | 1386 | |
d9c2a0f2 | 1387 | return variable; |
7921925c JB |
1388 | } |
1389 | ||
1390 | DEFUN ("kill-local-variable", Fkill_local_variable, Skill_local_variable, | |
1391 | 1, 1, "vKill Local Variable: ", | |
1392 | "Make VARIABLE no longer have a separate value in the current buffer.\n\ | |
1393 | From now on the default value will apply in this buffer.") | |
d9c2a0f2 EN |
1394 | (variable) |
1395 | register Lisp_Object variable; | |
7921925c JB |
1396 | { |
1397 | register Lisp_Object tem, valcontents; | |
1398 | ||
d9c2a0f2 | 1399 | CHECK_SYMBOL (variable, 0); |
7921925c | 1400 | |
d9c2a0f2 | 1401 | valcontents = XSYMBOL (variable)->value; |
7921925c | 1402 | |
e9ebc175 | 1403 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1404 | { |
46b2ac21 | 1405 | register int idx = XBUFFER_OBJFWD (valcontents)->offset; |
865c050f KH |
1406 | register int mask = XINT (*((Lisp_Object*) |
1407 | (idx + (char *)&buffer_local_flags))); | |
7921925c JB |
1408 | |
1409 | if (mask > 0) | |
1410 | { | |
1411 | *(Lisp_Object *)(idx + (char *) current_buffer) | |
1412 | = *(Lisp_Object *)(idx + (char *) &buffer_defaults); | |
1413 | current_buffer->local_var_flags &= ~mask; | |
1414 | } | |
d9c2a0f2 | 1415 | return variable; |
7921925c JB |
1416 | } |
1417 | ||
e9ebc175 KH |
1418 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1419 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 1420 | return variable; |
7921925c JB |
1421 | |
1422 | /* Get rid of this buffer's alist element, if any */ | |
1423 | ||
d9c2a0f2 | 1424 | tem = Fassq (variable, current_buffer->local_var_alist); |
a33ef3ab | 1425 | if (!NILP (tem)) |
8d4afcac KH |
1426 | current_buffer->local_var_alist |
1427 | = Fdelq (tem, current_buffer->local_var_alist); | |
7921925c | 1428 | |
79c83e03 KH |
1429 | /* If the symbol is set up for the current buffer, recompute its |
1430 | value. We have to do it now, or else forwarded objects won't | |
1431 | work right. */ | |
7921925c | 1432 | { |
8d4afcac | 1433 | Lisp_Object *pvalbuf; |
d9c2a0f2 | 1434 | valcontents = XSYMBOL (variable)->value; |
b0c2d1c6 | 1435 | pvalbuf = &XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
8d4afcac | 1436 | if (current_buffer == XBUFFER (*pvalbuf)) |
79c83e03 KH |
1437 | { |
1438 | *pvalbuf = Qnil; | |
b0c2d1c6 | 1439 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; |
978dd578 | 1440 | find_symbol_value (variable); |
79c83e03 | 1441 | } |
7921925c JB |
1442 | } |
1443 | ||
d9c2a0f2 | 1444 | return variable; |
7921925c | 1445 | } |
62476adc | 1446 | |
b0c2d1c6 RS |
1447 | /* Lisp functions for creating and removing buffer-local variables. */ |
1448 | ||
1449 | DEFUN ("make-variable-frame-local", Fmake_variable_frame_local, Smake_variable_frame_local, | |
1450 | 1, 1, "vMake Variable Frame Local: ", | |
37254ece RS |
1451 | "Enable VARIABLE to have frame-local bindings.\n\ |
1452 | When a frame-local binding exists in the current frame,\n\ | |
1453 | it is in effect whenever the current buffer has no buffer-local binding.\n\ | |
1454 | A frame-local binding is actual a frame parameter value;\n\ | |
1455 | thus, any given frame has a local binding for VARIABLE\n\ | |
1456 | if it has a value for the frame parameter named VARIABLE.\n\ | |
1457 | See `modify-frame-parameters'.") | |
8f152ad4 | 1458 | (variable) |
b0c2d1c6 RS |
1459 | register Lisp_Object variable; |
1460 | { | |
1461 | register Lisp_Object tem, valcontents, newval; | |
1462 | ||
1463 | CHECK_SYMBOL (variable, 0); | |
1464 | ||
1465 | valcontents = XSYMBOL (variable)->value; | |
1466 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents) | |
1467 | || BUFFER_OBJFWDP (valcontents)) | |
1468 | error ("Symbol %s may not be frame-local", XSYMBOL (variable)->name->data); | |
1469 | ||
1470 | if (BUFFER_LOCAL_VALUEP (valcontents) | |
1471 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
1472 | return variable; | |
1473 | ||
1474 | if (EQ (valcontents, Qunbound)) | |
1475 | XSYMBOL (variable)->value = Qnil; | |
1476 | tem = Fcons (Qnil, Fsymbol_value (variable)); | |
1477 | XCONS (tem)->car = tem; | |
1478 | newval = allocate_misc (); | |
1479 | XMISCTYPE (newval) = Lisp_Misc_Some_Buffer_Local_Value; | |
1480 | XBUFFER_LOCAL_VALUE (newval)->realvalue = XSYMBOL (variable)->value; | |
1481 | XBUFFER_LOCAL_VALUE (newval)->buffer = Qnil; | |
1482 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
1483 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; | |
1484 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; | |
1485 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 1; | |
1486 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
1487 | XSYMBOL (variable)->value = newval; | |
1488 | return variable; | |
1489 | } | |
1490 | ||
62476adc | 1491 | DEFUN ("local-variable-p", Flocal_variable_p, Slocal_variable_p, |
c48ead86 KH |
1492 | 1, 2, 0, |
1493 | "Non-nil if VARIABLE has a local binding in buffer BUFFER.\n\ | |
1494 | BUFFER defaults to the current buffer.") | |
d9c2a0f2 EN |
1495 | (variable, buffer) |
1496 | register Lisp_Object variable, buffer; | |
62476adc RS |
1497 | { |
1498 | Lisp_Object valcontents; | |
c48ead86 KH |
1499 | register struct buffer *buf; |
1500 | ||
1501 | if (NILP (buffer)) | |
1502 | buf = current_buffer; | |
1503 | else | |
1504 | { | |
1505 | CHECK_BUFFER (buffer, 0); | |
1506 | buf = XBUFFER (buffer); | |
1507 | } | |
62476adc | 1508 | |
d9c2a0f2 | 1509 | CHECK_SYMBOL (variable, 0); |
62476adc | 1510 | |
d9c2a0f2 | 1511 | valcontents = XSYMBOL (variable)->value; |
c48ead86 | 1512 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1e5f16fa | 1513 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
c48ead86 KH |
1514 | { |
1515 | Lisp_Object tail, elt; | |
1516 | for (tail = buf->local_var_alist; CONSP (tail); tail = XCONS (tail)->cdr) | |
1517 | { | |
1518 | elt = XCONS (tail)->car; | |
d9c2a0f2 | 1519 | if (EQ (variable, XCONS (elt)->car)) |
c48ead86 KH |
1520 | return Qt; |
1521 | } | |
1522 | } | |
1523 | if (BUFFER_OBJFWDP (valcontents)) | |
1524 | { | |
1525 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
1526 | int mask = XINT (*(Lisp_Object *)(offset + (char *)&buffer_local_flags)); | |
1527 | if (mask == -1 || (buf->local_var_flags & mask)) | |
1528 | return Qt; | |
1529 | } | |
1530 | return Qnil; | |
62476adc | 1531 | } |
f4f04cee RS |
1532 | |
1533 | DEFUN ("local-variable-if-set-p", Flocal_variable_if_set_p, Slocal_variable_if_set_p, | |
1534 | 1, 2, 0, | |
1535 | "Non-nil if VARIABLE will be local in buffer BUFFER if it is set there.\n\ | |
1536 | BUFFER defaults to the current buffer.") | |
d9c2a0f2 EN |
1537 | (variable, buffer) |
1538 | register Lisp_Object variable, buffer; | |
f4f04cee RS |
1539 | { |
1540 | Lisp_Object valcontents; | |
1541 | register struct buffer *buf; | |
1542 | ||
1543 | if (NILP (buffer)) | |
1544 | buf = current_buffer; | |
1545 | else | |
1546 | { | |
1547 | CHECK_BUFFER (buffer, 0); | |
1548 | buf = XBUFFER (buffer); | |
1549 | } | |
1550 | ||
d9c2a0f2 | 1551 | CHECK_SYMBOL (variable, 0); |
f4f04cee | 1552 | |
d9c2a0f2 | 1553 | valcontents = XSYMBOL (variable)->value; |
f4f04cee RS |
1554 | |
1555 | /* This means that make-variable-buffer-local was done. */ | |
1556 | if (BUFFER_LOCAL_VALUEP (valcontents)) | |
1557 | return Qt; | |
1558 | /* All these slots become local if they are set. */ | |
1559 | if (BUFFER_OBJFWDP (valcontents)) | |
1560 | return Qt; | |
1561 | if (SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
1562 | { | |
1563 | Lisp_Object tail, elt; | |
1564 | for (tail = buf->local_var_alist; CONSP (tail); tail = XCONS (tail)->cdr) | |
1565 | { | |
1566 | elt = XCONS (tail)->car; | |
d9c2a0f2 | 1567 | if (EQ (variable, XCONS (elt)->car)) |
f4f04cee RS |
1568 | return Qt; |
1569 | } | |
1570 | } | |
1571 | return Qnil; | |
1572 | } | |
7921925c | 1573 | \f |
ffd56f97 JB |
1574 | /* Find the function at the end of a chain of symbol function indirections. */ |
1575 | ||
1576 | /* If OBJECT is a symbol, find the end of its function chain and | |
1577 | return the value found there. If OBJECT is not a symbol, just | |
1578 | return it. If there is a cycle in the function chain, signal a | |
1579 | cyclic-function-indirection error. | |
1580 | ||
1581 | This is like Findirect_function, except that it doesn't signal an | |
1582 | error if the chain ends up unbound. */ | |
1583 | Lisp_Object | |
a2932990 | 1584 | indirect_function (object) |
62476adc | 1585 | register Lisp_Object object; |
ffd56f97 | 1586 | { |
eb8c3be9 | 1587 | Lisp_Object tortoise, hare; |
ffd56f97 | 1588 | |
eb8c3be9 | 1589 | hare = tortoise = object; |
ffd56f97 JB |
1590 | |
1591 | for (;;) | |
1592 | { | |
e9ebc175 | 1593 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
1594 | break; |
1595 | hare = XSYMBOL (hare)->function; | |
e9ebc175 | 1596 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
1597 | break; |
1598 | hare = XSYMBOL (hare)->function; | |
1599 | ||
eb8c3be9 | 1600 | tortoise = XSYMBOL (tortoise)->function; |
ffd56f97 | 1601 | |
eb8c3be9 | 1602 | if (EQ (hare, tortoise)) |
ffd56f97 JB |
1603 | Fsignal (Qcyclic_function_indirection, Fcons (object, Qnil)); |
1604 | } | |
1605 | ||
1606 | return hare; | |
1607 | } | |
1608 | ||
1609 | DEFUN ("indirect-function", Findirect_function, Sindirect_function, 1, 1, 0, | |
1610 | "Return the function at the end of OBJECT's function chain.\n\ | |
1611 | If OBJECT is a symbol, follow all function indirections and return the final\n\ | |
1612 | function binding.\n\ | |
1613 | If OBJECT is not a symbol, just return it.\n\ | |
1614 | Signal a void-function error if the final symbol is unbound.\n\ | |
1615 | Signal a cyclic-function-indirection error if there is a loop in the\n\ | |
1616 | function chain of symbols.") | |
1617 | (object) | |
1618 | register Lisp_Object object; | |
1619 | { | |
1620 | Lisp_Object result; | |
1621 | ||
1622 | result = indirect_function (object); | |
1623 | ||
1624 | if (EQ (result, Qunbound)) | |
1625 | return Fsignal (Qvoid_function, Fcons (object, Qnil)); | |
1626 | return result; | |
1627 | } | |
1628 | \f | |
7921925c JB |
1629 | /* Extract and set vector and string elements */ |
1630 | ||
1631 | DEFUN ("aref", Faref, Saref, 2, 2, 0, | |
d9c2a0f2 | 1632 | "Return the element of ARRAY at index IDX.\n\ |
4d276982 | 1633 | ARRAY may be a vector, a string, a char-table, a bool-vector,\n\ |
d9c2a0f2 | 1634 | or a byte-code object. IDX starts at 0.") |
7921925c JB |
1635 | (array, idx) |
1636 | register Lisp_Object array; | |
1637 | Lisp_Object idx; | |
1638 | { | |
1639 | register int idxval; | |
1640 | ||
1641 | CHECK_NUMBER (idx, 1); | |
1642 | idxval = XINT (idx); | |
e9ebc175 | 1643 | if (STRINGP (array)) |
7921925c | 1644 | { |
25638b07 RS |
1645 | int c, idxval_byte; |
1646 | ||
c24e4efe KH |
1647 | if (idxval < 0 || idxval >= XSTRING (array)->size) |
1648 | args_out_of_range (array, idx); | |
25638b07 RS |
1649 | if (! STRING_MULTIBYTE (array)) |
1650 | return make_number ((unsigned char) XSTRING (array)->data[idxval]); | |
1651 | idxval_byte = string_char_to_byte (array, idxval); | |
1652 | ||
1653 | c = STRING_CHAR (&XSTRING (array)->data[idxval_byte], | |
fc932ac6 | 1654 | STRING_BYTES (XSTRING (array)) - idxval_byte); |
25638b07 | 1655 | return make_number (c); |
7921925c | 1656 | } |
4d276982 RS |
1657 | else if (BOOL_VECTOR_P (array)) |
1658 | { | |
1659 | int val; | |
4d276982 RS |
1660 | |
1661 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
1662 | args_out_of_range (array, idx); | |
1663 | ||
68be917d KH |
1664 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BITS_PER_CHAR]; |
1665 | return (val & (1 << (idxval % BITS_PER_CHAR)) ? Qt : Qnil); | |
4d276982 RS |
1666 | } |
1667 | else if (CHAR_TABLE_P (array)) | |
1668 | { | |
1669 | Lisp_Object val; | |
1670 | ||
1671 | if (idxval < 0) | |
1672 | args_out_of_range (array, idx); | |
ab5c3f93 | 1673 | if (idxval < CHAR_TABLE_ORDINARY_SLOTS) |
8313c4e7 | 1674 | { |
39e16e51 | 1675 | /* For ASCII and 8-bit European characters, the element is |
3a6cf6bd | 1676 | stored in the top table. */ |
8313c4e7 KH |
1677 | val = XCHAR_TABLE (array)->contents[idxval]; |
1678 | if (NILP (val)) | |
1679 | val = XCHAR_TABLE (array)->defalt; | |
1680 | while (NILP (val)) /* Follow parents until we find some value. */ | |
1681 | { | |
1682 | array = XCHAR_TABLE (array)->parent; | |
1683 | if (NILP (array)) | |
1684 | return Qnil; | |
1685 | val = XCHAR_TABLE (array)->contents[idxval]; | |
1686 | if (NILP (val)) | |
1687 | val = XCHAR_TABLE (array)->defalt; | |
1688 | } | |
1689 | return val; | |
1690 | } | |
4d276982 RS |
1691 | else |
1692 | { | |
39e16e51 KH |
1693 | int code[4], i; |
1694 | Lisp_Object sub_table; | |
8313c4e7 | 1695 | |
39e16e51 KH |
1696 | SPLIT_NON_ASCII_CHAR (idxval, code[0], code[1], code[2]); |
1697 | if (code[0] != CHARSET_COMPOSITION) | |
1698 | { | |
1699 | if (code[1] < 32) code[1] = -1; | |
1700 | else if (code[2] < 32) code[2] = -1; | |
1701 | } | |
1702 | /* Here, the possible range of CODE[0] (== charset ID) is | |
1703 | 128..MAX_CHARSET. Since the top level char table contains | |
1704 | data for multibyte characters after 256th element, we must | |
1705 | increment CODE[0] by 128 to get a correct index. */ | |
1706 | code[0] += 128; | |
1707 | code[3] = -1; /* anchor */ | |
4d276982 RS |
1708 | |
1709 | try_parent_char_table: | |
39e16e51 KH |
1710 | sub_table = array; |
1711 | for (i = 0; code[i] >= 0; i++) | |
4d276982 | 1712 | { |
39e16e51 KH |
1713 | val = XCHAR_TABLE (sub_table)->contents[code[i]]; |
1714 | if (SUB_CHAR_TABLE_P (val)) | |
1715 | sub_table = val; | |
1716 | else | |
8313c4e7 | 1717 | { |
39e16e51 KH |
1718 | if (NILP (val)) |
1719 | val = XCHAR_TABLE (sub_table)->defalt; | |
1720 | if (NILP (val)) | |
1721 | { | |
1722 | array = XCHAR_TABLE (array)->parent; | |
1723 | if (!NILP (array)) | |
1724 | goto try_parent_char_table; | |
1725 | } | |
1726 | return val; | |
8313c4e7 | 1727 | } |
4d276982 | 1728 | } |
39e16e51 KH |
1729 | /* Here, VAL is a sub char table. We try the default value |
1730 | and parent. */ | |
1731 | val = XCHAR_TABLE (val)->defalt; | |
8313c4e7 | 1732 | if (NILP (val)) |
4d276982 RS |
1733 | { |
1734 | array = XCHAR_TABLE (array)->parent; | |
39e16e51 KH |
1735 | if (!NILP (array)) |
1736 | goto try_parent_char_table; | |
4d276982 | 1737 | } |
4d276982 RS |
1738 | return val; |
1739 | } | |
4d276982 | 1740 | } |
7921925c | 1741 | else |
c24e4efe | 1742 | { |
7f358972 RS |
1743 | int size; |
1744 | if (VECTORP (array)) | |
1745 | size = XVECTOR (array)->size; | |
1746 | else if (COMPILEDP (array)) | |
1747 | size = XVECTOR (array)->size & PSEUDOVECTOR_SIZE_MASK; | |
1748 | else | |
1749 | wrong_type_argument (Qarrayp, array); | |
1750 | ||
1751 | if (idxval < 0 || idxval >= size) | |
c24e4efe KH |
1752 | args_out_of_range (array, idx); |
1753 | return XVECTOR (array)->contents[idxval]; | |
1754 | } | |
7921925c JB |
1755 | } |
1756 | ||
1757 | DEFUN ("aset", Faset, Saset, 3, 3, 0, | |
73d40355 | 1758 | "Store into the element of ARRAY at index IDX the value NEWELT.\n\ |
9346f507 RS |
1759 | ARRAY may be a vector, a string, a char-table or a bool-vector.\n\ |
1760 | IDX starts at 0.") | |
7921925c JB |
1761 | (array, idx, newelt) |
1762 | register Lisp_Object array; | |
1763 | Lisp_Object idx, newelt; | |
1764 | { | |
1765 | register int idxval; | |
1766 | ||
1767 | CHECK_NUMBER (idx, 1); | |
1768 | idxval = XINT (idx); | |
4d276982 RS |
1769 | if (!VECTORP (array) && !STRINGP (array) && !BOOL_VECTOR_P (array) |
1770 | && ! CHAR_TABLE_P (array)) | |
7921925c | 1771 | array = wrong_type_argument (Qarrayp, array); |
7921925c JB |
1772 | CHECK_IMPURE (array); |
1773 | ||
e9ebc175 | 1774 | if (VECTORP (array)) |
c24e4efe KH |
1775 | { |
1776 | if (idxval < 0 || idxval >= XVECTOR (array)->size) | |
1777 | args_out_of_range (array, idx); | |
1778 | XVECTOR (array)->contents[idxval] = newelt; | |
1779 | } | |
4d276982 RS |
1780 | else if (BOOL_VECTOR_P (array)) |
1781 | { | |
1782 | int val; | |
4d276982 RS |
1783 | |
1784 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
1785 | args_out_of_range (array, idx); | |
1786 | ||
68be917d | 1787 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BITS_PER_CHAR]; |
4d276982 RS |
1788 | |
1789 | if (! NILP (newelt)) | |
68be917d | 1790 | val |= 1 << (idxval % BITS_PER_CHAR); |
4d276982 | 1791 | else |
68be917d KH |
1792 | val &= ~(1 << (idxval % BITS_PER_CHAR)); |
1793 | XBOOL_VECTOR (array)->data[idxval / BITS_PER_CHAR] = val; | |
4d276982 RS |
1794 | } |
1795 | else if (CHAR_TABLE_P (array)) | |
1796 | { | |
4d276982 RS |
1797 | if (idxval < 0) |
1798 | args_out_of_range (array, idx); | |
ab5c3f93 | 1799 | if (idxval < CHAR_TABLE_ORDINARY_SLOTS) |
8313c4e7 | 1800 | XCHAR_TABLE (array)->contents[idxval] = newelt; |
4d276982 RS |
1801 | else |
1802 | { | |
39e16e51 | 1803 | int code[4], i; |
8313c4e7 | 1804 | Lisp_Object val; |
4d276982 | 1805 | |
39e16e51 KH |
1806 | SPLIT_NON_ASCII_CHAR (idxval, code[0], code[1], code[2]); |
1807 | if (code[0] != CHARSET_COMPOSITION) | |
1808 | { | |
1809 | if (code[1] < 32) code[1] = -1; | |
1810 | else if (code[2] < 32) code[2] = -1; | |
1811 | } | |
1812 | /* See the comment of the corresponding part in Faref. */ | |
1813 | code[0] += 128; | |
1814 | code[3] = -1; /* anchor */ | |
1815 | for (i = 0; code[i + 1] >= 0; i++) | |
8313c4e7 | 1816 | { |
39e16e51 KH |
1817 | val = XCHAR_TABLE (array)->contents[code[i]]; |
1818 | if (SUB_CHAR_TABLE_P (val)) | |
8313c4e7 KH |
1819 | array = val; |
1820 | else | |
3c8fccc3 RS |
1821 | { |
1822 | Lisp_Object temp; | |
1823 | ||
1824 | /* VAL is a leaf. Create a sub char table with the | |
1825 | default value VAL or XCHAR_TABLE (array)->defalt | |
1826 | and look into it. */ | |
1827 | ||
1828 | temp = make_sub_char_table (NILP (val) | |
1829 | ? XCHAR_TABLE (array)->defalt | |
1830 | : val); | |
1831 | XCHAR_TABLE (array)->contents[code[i]] = temp; | |
1832 | array = temp; | |
1833 | } | |
8313c4e7 | 1834 | } |
39e16e51 | 1835 | XCHAR_TABLE (array)->contents[code[i]] = newelt; |
4d276982 | 1836 | } |
4d276982 | 1837 | } |
25638b07 RS |
1838 | else if (STRING_MULTIBYTE (array)) |
1839 | { | |
dd8daec5 | 1840 | int idxval_byte, new_len, actual_len; |
5e522af4 | 1841 | int prev_byte; |
dbda4aad | 1842 | unsigned char *p, workbuf[4], *str; |
25638b07 RS |
1843 | |
1844 | if (idxval < 0 || idxval >= XSTRING (array)->size) | |
1845 | args_out_of_range (array, idx); | |
1846 | ||
1847 | idxval_byte = string_char_to_byte (array, idxval); | |
ca2f68f8 | 1848 | p = &XSTRING (array)->data[idxval_byte]; |
25638b07 | 1849 | |
5e522af4 | 1850 | actual_len = MULTIBYTE_FORM_LENGTH (p, STRING_BYTES (XSTRING (array))); |
6d0b4fac | 1851 | CHECK_NUMBER (newelt, 2); |
dbda4aad | 1852 | new_len = CHAR_STRING (XINT (newelt), workbuf, str); |
6d0b4fac | 1853 | if (actual_len != new_len) |
ca2f68f8 | 1854 | error ("Attempt to change byte length of a string"); |
5e522af4 KH |
1855 | |
1856 | /* We can't accept a change causing byte combining. */ | |
a2603188 KH |
1857 | if (!ASCII_BYTE_P (*str) |
1858 | && ((idxval > 0 && !CHAR_HEAD_P (*str) | |
1859 | && (prev_byte = string_char_to_byte (array, idxval - 1), | |
1860 | BYTES_BY_CHAR_HEAD (XSTRING (array)->data[prev_byte]) | |
1861 | > idxval_byte - prev_byte)) | |
1862 | || (idxval < XSTRING (array)->size - 1 | |
1863 | && !CHAR_HEAD_P (p[actual_len]) | |
1864 | && new_len < BYTES_BY_CHAR_HEAD (*str)))) | |
5e522af4 | 1865 | error ("Attempt to change char length of a string"); |
dbda4aad KH |
1866 | while (new_len--) |
1867 | *p++ = *str++; | |
25638b07 | 1868 | } |
7921925c JB |
1869 | else |
1870 | { | |
c24e4efe KH |
1871 | if (idxval < 0 || idxval >= XSTRING (array)->size) |
1872 | args_out_of_range (array, idx); | |
7921925c JB |
1873 | CHECK_NUMBER (newelt, 2); |
1874 | XSTRING (array)->data[idxval] = XINT (newelt); | |
1875 | } | |
1876 | ||
1877 | return newelt; | |
1878 | } | |
7921925c JB |
1879 | \f |
1880 | /* Arithmetic functions */ | |
1881 | ||
1882 | enum comparison { equal, notequal, less, grtr, less_or_equal, grtr_or_equal }; | |
1883 | ||
1884 | Lisp_Object | |
1885 | arithcompare (num1, num2, comparison) | |
1886 | Lisp_Object num1, num2; | |
1887 | enum comparison comparison; | |
1888 | { | |
1889 | double f1, f2; | |
1890 | int floatp = 0; | |
1891 | ||
1892 | #ifdef LISP_FLOAT_TYPE | |
1893 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1, 0); | |
1894 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2, 0); | |
1895 | ||
e9ebc175 | 1896 | if (FLOATP (num1) || FLOATP (num2)) |
7921925c JB |
1897 | { |
1898 | floatp = 1; | |
e9ebc175 KH |
1899 | f1 = (FLOATP (num1)) ? XFLOAT (num1)->data : XINT (num1); |
1900 | f2 = (FLOATP (num2)) ? XFLOAT (num2)->data : XINT (num2); | |
7921925c JB |
1901 | } |
1902 | #else | |
1903 | CHECK_NUMBER_COERCE_MARKER (num1, 0); | |
1904 | CHECK_NUMBER_COERCE_MARKER (num2, 0); | |
1905 | #endif /* LISP_FLOAT_TYPE */ | |
1906 | ||
1907 | switch (comparison) | |
1908 | { | |
1909 | case equal: | |
1910 | if (floatp ? f1 == f2 : XINT (num1) == XINT (num2)) | |
1911 | return Qt; | |
1912 | return Qnil; | |
1913 | ||
1914 | case notequal: | |
1915 | if (floatp ? f1 != f2 : XINT (num1) != XINT (num2)) | |
1916 | return Qt; | |
1917 | return Qnil; | |
1918 | ||
1919 | case less: | |
1920 | if (floatp ? f1 < f2 : XINT (num1) < XINT (num2)) | |
1921 | return Qt; | |
1922 | return Qnil; | |
1923 | ||
1924 | case less_or_equal: | |
1925 | if (floatp ? f1 <= f2 : XINT (num1) <= XINT (num2)) | |
1926 | return Qt; | |
1927 | return Qnil; | |
1928 | ||
1929 | case grtr: | |
1930 | if (floatp ? f1 > f2 : XINT (num1) > XINT (num2)) | |
1931 | return Qt; | |
1932 | return Qnil; | |
1933 | ||
1934 | case grtr_or_equal: | |
1935 | if (floatp ? f1 >= f2 : XINT (num1) >= XINT (num2)) | |
1936 | return Qt; | |
1937 | return Qnil; | |
25e40a4b JB |
1938 | |
1939 | default: | |
1940 | abort (); | |
7921925c JB |
1941 | } |
1942 | } | |
1943 | ||
1944 | DEFUN ("=", Feqlsign, Seqlsign, 2, 2, 0, | |
c2124165 | 1945 | "Return t if two args, both numbers or markers, are equal.") |
7921925c JB |
1946 | (num1, num2) |
1947 | register Lisp_Object num1, num2; | |
1948 | { | |
1949 | return arithcompare (num1, num2, equal); | |
1950 | } | |
1951 | ||
1952 | DEFUN ("<", Flss, Slss, 2, 2, 0, | |
c2124165 | 1953 | "Return t if first arg is less than second arg. Both must be numbers or markers.") |
7921925c JB |
1954 | (num1, num2) |
1955 | register Lisp_Object num1, num2; | |
1956 | { | |
1957 | return arithcompare (num1, num2, less); | |
1958 | } | |
1959 | ||
1960 | DEFUN (">", Fgtr, Sgtr, 2, 2, 0, | |
c2124165 | 1961 | "Return t if first arg is greater than second arg. Both must be numbers or markers.") |
7921925c JB |
1962 | (num1, num2) |
1963 | register Lisp_Object num1, num2; | |
1964 | { | |
1965 | return arithcompare (num1, num2, grtr); | |
1966 | } | |
1967 | ||
1968 | DEFUN ("<=", Fleq, Sleq, 2, 2, 0, | |
c2124165 | 1969 | "Return t if first arg is less than or equal to second arg.\n\ |
7921925c JB |
1970 | Both must be numbers or markers.") |
1971 | (num1, num2) | |
1972 | register Lisp_Object num1, num2; | |
1973 | { | |
1974 | return arithcompare (num1, num2, less_or_equal); | |
1975 | } | |
1976 | ||
1977 | DEFUN (">=", Fgeq, Sgeq, 2, 2, 0, | |
c2124165 | 1978 | "Return t if first arg is greater than or equal to second arg.\n\ |
7921925c JB |
1979 | Both must be numbers or markers.") |
1980 | (num1, num2) | |
1981 | register Lisp_Object num1, num2; | |
1982 | { | |
1983 | return arithcompare (num1, num2, grtr_or_equal); | |
1984 | } | |
1985 | ||
1986 | DEFUN ("/=", Fneq, Sneq, 2, 2, 0, | |
c2124165 | 1987 | "Return t if first arg is not equal to second arg. Both must be numbers or markers.") |
7921925c JB |
1988 | (num1, num2) |
1989 | register Lisp_Object num1, num2; | |
1990 | { | |
1991 | return arithcompare (num1, num2, notequal); | |
1992 | } | |
1993 | ||
c2124165 | 1994 | DEFUN ("zerop", Fzerop, Szerop, 1, 1, 0, "Return t if NUMBER is zero.") |
d9c2a0f2 EN |
1995 | (number) |
1996 | register Lisp_Object number; | |
7921925c JB |
1997 | { |
1998 | #ifdef LISP_FLOAT_TYPE | |
d9c2a0f2 | 1999 | CHECK_NUMBER_OR_FLOAT (number, 0); |
7921925c | 2000 | |
d9c2a0f2 | 2001 | if (FLOATP (number)) |
7921925c | 2002 | { |
d9c2a0f2 | 2003 | if (XFLOAT(number)->data == 0.0) |
7921925c JB |
2004 | return Qt; |
2005 | return Qnil; | |
2006 | } | |
2007 | #else | |
d9c2a0f2 | 2008 | CHECK_NUMBER (number, 0); |
7921925c JB |
2009 | #endif /* LISP_FLOAT_TYPE */ |
2010 | ||
d9c2a0f2 | 2011 | if (!XINT (number)) |
7921925c JB |
2012 | return Qt; |
2013 | return Qnil; | |
2014 | } | |
2015 | \f | |
34f4f6c6 | 2016 | /* Convert between long values and pairs of Lisp integers. */ |
51cf3e31 JB |
2017 | |
2018 | Lisp_Object | |
2019 | long_to_cons (i) | |
2020 | unsigned long i; | |
2021 | { | |
2022 | unsigned int top = i >> 16; | |
2023 | unsigned int bot = i & 0xFFFF; | |
2024 | if (top == 0) | |
2025 | return make_number (bot); | |
b42cfa11 | 2026 | if (top == (unsigned long)-1 >> 16) |
51cf3e31 JB |
2027 | return Fcons (make_number (-1), make_number (bot)); |
2028 | return Fcons (make_number (top), make_number (bot)); | |
2029 | } | |
2030 | ||
2031 | unsigned long | |
2032 | cons_to_long (c) | |
2033 | Lisp_Object c; | |
2034 | { | |
878a80cc | 2035 | Lisp_Object top, bot; |
51cf3e31 JB |
2036 | if (INTEGERP (c)) |
2037 | return XINT (c); | |
2038 | top = XCONS (c)->car; | |
2039 | bot = XCONS (c)->cdr; | |
2040 | if (CONSP (bot)) | |
2041 | bot = XCONS (bot)->car; | |
2042 | return ((XINT (top) << 16) | XINT (bot)); | |
2043 | } | |
2044 | \f | |
f2980264 | 2045 | DEFUN ("number-to-string", Fnumber_to_string, Snumber_to_string, 1, 1, 0, |
d9c2a0f2 | 2046 | "Convert NUMBER to a string by printing it in decimal.\n\ |
25e40a4b | 2047 | Uses a minus sign if negative.\n\ |
d9c2a0f2 EN |
2048 | NUMBER may be an integer or a floating point number.") |
2049 | (number) | |
2050 | Lisp_Object number; | |
7921925c | 2051 | { |
6030ce64 | 2052 | char buffer[VALBITS]; |
7921925c JB |
2053 | |
2054 | #ifndef LISP_FLOAT_TYPE | |
d9c2a0f2 | 2055 | CHECK_NUMBER (number, 0); |
7921925c | 2056 | #else |
d9c2a0f2 | 2057 | CHECK_NUMBER_OR_FLOAT (number, 0); |
7921925c | 2058 | |
d9c2a0f2 | 2059 | if (FLOATP (number)) |
7921925c JB |
2060 | { |
2061 | char pigbuf[350]; /* see comments in float_to_string */ | |
2062 | ||
d9c2a0f2 | 2063 | float_to_string (pigbuf, XFLOAT(number)->data); |
7403b5c8 | 2064 | return build_string (pigbuf); |
7921925c JB |
2065 | } |
2066 | #endif /* LISP_FLOAT_TYPE */ | |
2067 | ||
e6c82a8d | 2068 | if (sizeof (int) == sizeof (EMACS_INT)) |
d9c2a0f2 | 2069 | sprintf (buffer, "%d", XINT (number)); |
e6c82a8d | 2070 | else if (sizeof (long) == sizeof (EMACS_INT)) |
dd8daec5 | 2071 | sprintf (buffer, "%ld", (long) XINT (number)); |
e6c82a8d RS |
2072 | else |
2073 | abort (); | |
7921925c JB |
2074 | return build_string (buffer); |
2075 | } | |
2076 | ||
3883fbeb RS |
2077 | INLINE static int |
2078 | digit_to_number (character, base) | |
2079 | int character, base; | |
2080 | { | |
2081 | int digit; | |
2082 | ||
2083 | if (character >= '0' && character <= '9') | |
2084 | digit = character - '0'; | |
2085 | else if (character >= 'a' && character <= 'z') | |
2086 | digit = character - 'a' + 10; | |
2087 | else if (character >= 'A' && character <= 'Z') | |
2088 | digit = character - 'A' + 10; | |
2089 | else | |
2090 | return -1; | |
2091 | ||
2092 | if (digit >= base) | |
2093 | return -1; | |
2094 | else | |
2095 | return digit; | |
2096 | } | |
2097 | ||
2098 | DEFUN ("string-to-number", Fstring_to_number, Sstring_to_number, 1, 2, 0, | |
25e40a4b | 2099 | "Convert STRING to a number by parsing it as a decimal number.\n\ |
1c1c17eb | 2100 | This parses both integers and floating point numbers.\n\ |
3883fbeb RS |
2101 | It ignores leading spaces and tabs.\n\ |
2102 | \n\ | |
2103 | If BASE, interpret STRING as a number in that base. If BASE isn't\n\ | |
2104 | present, base 10 is used. BASE must be between 2 and 16 (inclusive).\n\ | |
8e36ae7f | 2105 | If the base used is not 10, floating point is not recognized.") |
3883fbeb RS |
2106 | (string, base) |
2107 | register Lisp_Object string, base; | |
7921925c | 2108 | { |
3883fbeb | 2109 | register unsigned char *p; |
dd8daec5 | 2110 | register int b, v = 0; |
3883fbeb | 2111 | int negative = 1; |
25e40a4b | 2112 | |
d9c2a0f2 | 2113 | CHECK_STRING (string, 0); |
7921925c | 2114 | |
3883fbeb RS |
2115 | if (NILP (base)) |
2116 | b = 10; | |
2117 | else | |
2118 | { | |
2119 | CHECK_NUMBER (base, 1); | |
2120 | b = XINT (base); | |
2121 | if (b < 2 || b > 16) | |
2122 | Fsignal (Qargs_out_of_range, Fcons (base, Qnil)); | |
2123 | } | |
2124 | ||
d9c2a0f2 | 2125 | p = XSTRING (string)->data; |
25e40a4b JB |
2126 | |
2127 | /* Skip any whitespace at the front of the number. Some versions of | |
2128 | atoi do this anyway, so we might as well make Emacs lisp consistent. */ | |
0a3e4d65 | 2129 | while (*p == ' ' || *p == '\t') |
25e40a4b JB |
2130 | p++; |
2131 | ||
3883fbeb RS |
2132 | if (*p == '-') |
2133 | { | |
2134 | negative = -1; | |
2135 | p++; | |
2136 | } | |
2137 | else if (*p == '+') | |
2138 | p++; | |
2139 | ||
7921925c | 2140 | #ifdef LISP_FLOAT_TYPE |
8e36ae7f | 2141 | if (isfloat_string (p) && b == 10) |
142d9135 | 2142 | return make_float (negative * atof (p)); |
7921925c JB |
2143 | #endif /* LISP_FLOAT_TYPE */ |
2144 | ||
3883fbeb RS |
2145 | while (1) |
2146 | { | |
2147 | int digit = digit_to_number (*p++, b); | |
2148 | if (digit < 0) | |
2149 | break; | |
2150 | v = v * b + digit; | |
2151 | } | |
2152 | ||
2153 | return make_number (negative * v); | |
7921925c | 2154 | } |
3883fbeb | 2155 | |
7403b5c8 | 2156 | \f |
7921925c JB |
2157 | enum arithop |
2158 | { Aadd, Asub, Amult, Adiv, Alogand, Alogior, Alogxor, Amax, Amin }; | |
2159 | ||
b06faa91 | 2160 | extern Lisp_Object float_arith_driver (); |
ad8d56b9 | 2161 | extern Lisp_Object fmod_float (); |
b06faa91 | 2162 | |
7921925c | 2163 | Lisp_Object |
87fbf902 | 2164 | arith_driver (code, nargs, args) |
7921925c JB |
2165 | enum arithop code; |
2166 | int nargs; | |
2167 | register Lisp_Object *args; | |
2168 | { | |
2169 | register Lisp_Object val; | |
2170 | register int argnum; | |
5260234d RS |
2171 | register EMACS_INT accum; |
2172 | register EMACS_INT next; | |
7921925c | 2173 | |
0220c518 | 2174 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2175 | { |
2176 | case Alogior: | |
2177 | case Alogxor: | |
2178 | case Aadd: | |
2179 | case Asub: | |
2180 | accum = 0; break; | |
2181 | case Amult: | |
2182 | accum = 1; break; | |
2183 | case Alogand: | |
2184 | accum = -1; break; | |
2185 | } | |
2186 | ||
2187 | for (argnum = 0; argnum < nargs; argnum++) | |
2188 | { | |
2189 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ | |
2190 | #ifdef LISP_FLOAT_TYPE | |
2191 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val, argnum); | |
2192 | ||
e9ebc175 | 2193 | if (FLOATP (val)) /* time to do serious math */ |
7921925c JB |
2194 | return (float_arith_driver ((double) accum, argnum, code, |
2195 | nargs, args)); | |
2196 | #else | |
2197 | CHECK_NUMBER_COERCE_MARKER (val, argnum); | |
2198 | #endif /* LISP_FLOAT_TYPE */ | |
2199 | args[argnum] = val; /* runs into a compiler bug. */ | |
2200 | next = XINT (args[argnum]); | |
0220c518 | 2201 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2202 | { |
2203 | case Aadd: accum += next; break; | |
2204 | case Asub: | |
e64981da | 2205 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c JB |
2206 | break; |
2207 | case Amult: accum *= next; break; | |
2208 | case Adiv: | |
2209 | if (!argnum) accum = next; | |
87fbf902 RS |
2210 | else |
2211 | { | |
2212 | if (next == 0) | |
2213 | Fsignal (Qarith_error, Qnil); | |
2214 | accum /= next; | |
2215 | } | |
7921925c JB |
2216 | break; |
2217 | case Alogand: accum &= next; break; | |
2218 | case Alogior: accum |= next; break; | |
2219 | case Alogxor: accum ^= next; break; | |
2220 | case Amax: if (!argnum || next > accum) accum = next; break; | |
2221 | case Amin: if (!argnum || next < accum) accum = next; break; | |
2222 | } | |
2223 | } | |
2224 | ||
f187f1f7 | 2225 | XSETINT (val, accum); |
7921925c JB |
2226 | return val; |
2227 | } | |
2228 | ||
1a2f2d33 KH |
2229 | #undef isnan |
2230 | #define isnan(x) ((x) != (x)) | |
2231 | ||
bc1c9d7e PE |
2232 | #ifdef LISP_FLOAT_TYPE |
2233 | ||
7921925c JB |
2234 | Lisp_Object |
2235 | float_arith_driver (accum, argnum, code, nargs, args) | |
2236 | double accum; | |
2237 | register int argnum; | |
2238 | enum arithop code; | |
2239 | int nargs; | |
2240 | register Lisp_Object *args; | |
2241 | { | |
2242 | register Lisp_Object val; | |
2243 | double next; | |
7403b5c8 | 2244 | |
7921925c JB |
2245 | for (; argnum < nargs; argnum++) |
2246 | { | |
2247 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ | |
2248 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val, argnum); | |
2249 | ||
e9ebc175 | 2250 | if (FLOATP (val)) |
7921925c JB |
2251 | { |
2252 | next = XFLOAT (val)->data; | |
2253 | } | |
2254 | else | |
2255 | { | |
2256 | args[argnum] = val; /* runs into a compiler bug. */ | |
2257 | next = XINT (args[argnum]); | |
2258 | } | |
0220c518 | 2259 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2260 | { |
2261 | case Aadd: | |
2262 | accum += next; | |
2263 | break; | |
2264 | case Asub: | |
e64981da | 2265 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c JB |
2266 | break; |
2267 | case Amult: | |
2268 | accum *= next; | |
2269 | break; | |
2270 | case Adiv: | |
2271 | if (!argnum) | |
2272 | accum = next; | |
2273 | else | |
87fbf902 | 2274 | { |
ad8d56b9 | 2275 | if (! IEEE_FLOATING_POINT && next == 0) |
87fbf902 RS |
2276 | Fsignal (Qarith_error, Qnil); |
2277 | accum /= next; | |
2278 | } | |
7921925c JB |
2279 | break; |
2280 | case Alogand: | |
2281 | case Alogior: | |
2282 | case Alogxor: | |
2283 | return wrong_type_argument (Qinteger_or_marker_p, val); | |
2284 | case Amax: | |
1a2f2d33 | 2285 | if (!argnum || isnan (next) || next > accum) |
7921925c JB |
2286 | accum = next; |
2287 | break; | |
2288 | case Amin: | |
1a2f2d33 | 2289 | if (!argnum || isnan (next) || next < accum) |
7921925c JB |
2290 | accum = next; |
2291 | break; | |
2292 | } | |
2293 | } | |
2294 | ||
2295 | return make_float (accum); | |
2296 | } | |
2297 | #endif /* LISP_FLOAT_TYPE */ | |
2298 | ||
2299 | DEFUN ("+", Fplus, Splus, 0, MANY, 0, | |
2300 | "Return sum of any number of arguments, which are numbers or markers.") | |
2301 | (nargs, args) | |
2302 | int nargs; | |
2303 | Lisp_Object *args; | |
2304 | { | |
2305 | return arith_driver (Aadd, nargs, args); | |
2306 | } | |
2307 | ||
2308 | DEFUN ("-", Fminus, Sminus, 0, MANY, 0, | |
2309 | "Negate number or subtract numbers or markers.\n\ | |
2310 | With one arg, negates it. With more than one arg,\n\ | |
2311 | subtracts all but the first from the first.") | |
2312 | (nargs, args) | |
2313 | int nargs; | |
2314 | Lisp_Object *args; | |
2315 | { | |
2316 | return arith_driver (Asub, nargs, args); | |
2317 | } | |
2318 | ||
2319 | DEFUN ("*", Ftimes, Stimes, 0, MANY, 0, | |
2320 | "Returns product of any number of arguments, which are numbers or markers.") | |
2321 | (nargs, args) | |
2322 | int nargs; | |
2323 | Lisp_Object *args; | |
2324 | { | |
2325 | return arith_driver (Amult, nargs, args); | |
2326 | } | |
2327 | ||
2328 | DEFUN ("/", Fquo, Squo, 2, MANY, 0, | |
2329 | "Returns first argument divided by all the remaining arguments.\n\ | |
2330 | The arguments must be numbers or markers.") | |
2331 | (nargs, args) | |
2332 | int nargs; | |
2333 | Lisp_Object *args; | |
2334 | { | |
2335 | return arith_driver (Adiv, nargs, args); | |
2336 | } | |
2337 | ||
2338 | DEFUN ("%", Frem, Srem, 2, 2, 0, | |
d9c2a0f2 | 2339 | "Returns remainder of X divided by Y.\n\ |
aa29f9b9 | 2340 | Both must be integers or markers.") |
d9c2a0f2 EN |
2341 | (x, y) |
2342 | register Lisp_Object x, y; | |
7921925c JB |
2343 | { |
2344 | Lisp_Object val; | |
2345 | ||
d9c2a0f2 EN |
2346 | CHECK_NUMBER_COERCE_MARKER (x, 0); |
2347 | CHECK_NUMBER_COERCE_MARKER (y, 1); | |
7921925c | 2348 | |
d9c2a0f2 | 2349 | if (XFASTINT (y) == 0) |
87fbf902 RS |
2350 | Fsignal (Qarith_error, Qnil); |
2351 | ||
d9c2a0f2 | 2352 | XSETINT (val, XINT (x) % XINT (y)); |
7921925c JB |
2353 | return val; |
2354 | } | |
2355 | ||
1d66a5fa KH |
2356 | #ifndef HAVE_FMOD |
2357 | double | |
2358 | fmod (f1, f2) | |
2359 | double f1, f2; | |
2360 | { | |
bc1c9d7e PE |
2361 | double r = f1; |
2362 | ||
fa43b1e8 KH |
2363 | if (f2 < 0.0) |
2364 | f2 = -f2; | |
bc1c9d7e PE |
2365 | |
2366 | /* If the magnitude of the result exceeds that of the divisor, or | |
2367 | the sign of the result does not agree with that of the dividend, | |
2368 | iterate with the reduced value. This does not yield a | |
2369 | particularly accurate result, but at least it will be in the | |
2370 | range promised by fmod. */ | |
2371 | do | |
2372 | r -= f2 * floor (r / f2); | |
2373 | while (f2 <= (r < 0 ? -r : r) || ((r < 0) != (f1 < 0) && ! isnan (r))); | |
2374 | ||
2375 | return r; | |
1d66a5fa KH |
2376 | } |
2377 | #endif /* ! HAVE_FMOD */ | |
2378 | ||
44fa9da5 PE |
2379 | DEFUN ("mod", Fmod, Smod, 2, 2, 0, |
2380 | "Returns X modulo Y.\n\ | |
2381 | The result falls between zero (inclusive) and Y (exclusive).\n\ | |
2382 | Both X and Y must be numbers or markers.") | |
d9c2a0f2 EN |
2383 | (x, y) |
2384 | register Lisp_Object x, y; | |
44fa9da5 PE |
2385 | { |
2386 | Lisp_Object val; | |
5260234d | 2387 | EMACS_INT i1, i2; |
44fa9da5 PE |
2388 | |
2389 | #ifdef LISP_FLOAT_TYPE | |
d9c2a0f2 EN |
2390 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (x, 0); |
2391 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (y, 1); | |
44fa9da5 | 2392 | |
d9c2a0f2 | 2393 | if (FLOATP (x) || FLOATP (y)) |
ad8d56b9 PE |
2394 | return fmod_float (x, y); |
2395 | ||
44fa9da5 | 2396 | #else /* not LISP_FLOAT_TYPE */ |
d9c2a0f2 EN |
2397 | CHECK_NUMBER_COERCE_MARKER (x, 0); |
2398 | CHECK_NUMBER_COERCE_MARKER (y, 1); | |
44fa9da5 PE |
2399 | #endif /* not LISP_FLOAT_TYPE */ |
2400 | ||
d9c2a0f2 EN |
2401 | i1 = XINT (x); |
2402 | i2 = XINT (y); | |
44fa9da5 PE |
2403 | |
2404 | if (i2 == 0) | |
2405 | Fsignal (Qarith_error, Qnil); | |
7403b5c8 | 2406 | |
44fa9da5 PE |
2407 | i1 %= i2; |
2408 | ||
2409 | /* If the "remainder" comes out with the wrong sign, fix it. */ | |
04f7ec69 | 2410 | if (i2 < 0 ? i1 > 0 : i1 < 0) |
44fa9da5 PE |
2411 | i1 += i2; |
2412 | ||
f187f1f7 | 2413 | XSETINT (val, i1); |
44fa9da5 PE |
2414 | return val; |
2415 | } | |
2416 | ||
7921925c JB |
2417 | DEFUN ("max", Fmax, Smax, 1, MANY, 0, |
2418 | "Return largest of all the arguments (which must be numbers or markers).\n\ | |
2419 | The value is always a number; markers are converted to numbers.") | |
2420 | (nargs, args) | |
2421 | int nargs; | |
2422 | Lisp_Object *args; | |
2423 | { | |
2424 | return arith_driver (Amax, nargs, args); | |
2425 | } | |
2426 | ||
2427 | DEFUN ("min", Fmin, Smin, 1, MANY, 0, | |
2428 | "Return smallest of all the arguments (which must be numbers or markers).\n\ | |
2429 | The value is always a number; markers are converted to numbers.") | |
2430 | (nargs, args) | |
2431 | int nargs; | |
2432 | Lisp_Object *args; | |
2433 | { | |
2434 | return arith_driver (Amin, nargs, args); | |
2435 | } | |
2436 | ||
2437 | DEFUN ("logand", Flogand, Slogand, 0, MANY, 0, | |
2438 | "Return bitwise-and of all the arguments.\n\ | |
2439 | Arguments may be integers, or markers converted to integers.") | |
2440 | (nargs, args) | |
2441 | int nargs; | |
2442 | Lisp_Object *args; | |
2443 | { | |
2444 | return arith_driver (Alogand, nargs, args); | |
2445 | } | |
2446 | ||
2447 | DEFUN ("logior", Flogior, Slogior, 0, MANY, 0, | |
2448 | "Return bitwise-or of all the arguments.\n\ | |
2449 | Arguments may be integers, or markers converted to integers.") | |
2450 | (nargs, args) | |
2451 | int nargs; | |
2452 | Lisp_Object *args; | |
2453 | { | |
2454 | return arith_driver (Alogior, nargs, args); | |
2455 | } | |
2456 | ||
2457 | DEFUN ("logxor", Flogxor, Slogxor, 0, MANY, 0, | |
2458 | "Return bitwise-exclusive-or of all the arguments.\n\ | |
2459 | Arguments may be integers, or markers converted to integers.") | |
2460 | (nargs, args) | |
2461 | int nargs; | |
2462 | Lisp_Object *args; | |
2463 | { | |
2464 | return arith_driver (Alogxor, nargs, args); | |
2465 | } | |
2466 | ||
2467 | DEFUN ("ash", Fash, Sash, 2, 2, 0, | |
2468 | "Return VALUE with its bits shifted left by COUNT.\n\ | |
2469 | If COUNT is negative, shifting is actually to the right.\n\ | |
2470 | In this case, the sign bit is duplicated.") | |
3b9f7964 RS |
2471 | (value, count) |
2472 | register Lisp_Object value, count; | |
7921925c JB |
2473 | { |
2474 | register Lisp_Object val; | |
2475 | ||
3d9652eb RS |
2476 | CHECK_NUMBER (value, 0); |
2477 | CHECK_NUMBER (count, 1); | |
7921925c | 2478 | |
81d70626 RS |
2479 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2480 | XSETINT (val, 0); | |
2481 | else if (XINT (count) > 0) | |
3d9652eb | 2482 | XSETINT (val, XINT (value) << XFASTINT (count)); |
81d70626 RS |
2483 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2484 | XSETINT (val, XINT (value) < 0 ? -1 : 0); | |
7921925c | 2485 | else |
3d9652eb | 2486 | XSETINT (val, XINT (value) >> -XINT (count)); |
7921925c JB |
2487 | return val; |
2488 | } | |
2489 | ||
2490 | DEFUN ("lsh", Flsh, Slsh, 2, 2, 0, | |
2491 | "Return VALUE with its bits shifted left by COUNT.\n\ | |
2492 | If COUNT is negative, shifting is actually to the right.\n\ | |
2493 | In this case, zeros are shifted in on the left.") | |
3d9652eb RS |
2494 | (value, count) |
2495 | register Lisp_Object value, count; | |
7921925c JB |
2496 | { |
2497 | register Lisp_Object val; | |
2498 | ||
3d9652eb RS |
2499 | CHECK_NUMBER (value, 0); |
2500 | CHECK_NUMBER (count, 1); | |
7921925c | 2501 | |
81d70626 RS |
2502 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2503 | XSETINT (val, 0); | |
2504 | else if (XINT (count) > 0) | |
3d9652eb | 2505 | XSETINT (val, (EMACS_UINT) XUINT (value) << XFASTINT (count)); |
81d70626 RS |
2506 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2507 | XSETINT (val, 0); | |
7921925c | 2508 | else |
3d9652eb | 2509 | XSETINT (val, (EMACS_UINT) XUINT (value) >> -XINT (count)); |
7921925c JB |
2510 | return val; |
2511 | } | |
2512 | ||
2513 | DEFUN ("1+", Fadd1, Sadd1, 1, 1, 0, | |
2514 | "Return NUMBER plus one. NUMBER may be a number or a marker.\n\ | |
2515 | Markers are converted to integers.") | |
d9c2a0f2 EN |
2516 | (number) |
2517 | register Lisp_Object number; | |
7921925c JB |
2518 | { |
2519 | #ifdef LISP_FLOAT_TYPE | |
d9c2a0f2 | 2520 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number, 0); |
7921925c | 2521 | |
d9c2a0f2 EN |
2522 | if (FLOATP (number)) |
2523 | return (make_float (1.0 + XFLOAT (number)->data)); | |
7921925c | 2524 | #else |
d9c2a0f2 | 2525 | CHECK_NUMBER_COERCE_MARKER (number, 0); |
7921925c JB |
2526 | #endif /* LISP_FLOAT_TYPE */ |
2527 | ||
d9c2a0f2 EN |
2528 | XSETINT (number, XINT (number) + 1); |
2529 | return number; | |
7921925c JB |
2530 | } |
2531 | ||
2532 | DEFUN ("1-", Fsub1, Ssub1, 1, 1, 0, | |
2533 | "Return NUMBER minus one. NUMBER may be a number or a marker.\n\ | |
2534 | Markers are converted to integers.") | |
d9c2a0f2 EN |
2535 | (number) |
2536 | register Lisp_Object number; | |
7921925c JB |
2537 | { |
2538 | #ifdef LISP_FLOAT_TYPE | |
d9c2a0f2 | 2539 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number, 0); |
7921925c | 2540 | |
d9c2a0f2 EN |
2541 | if (FLOATP (number)) |
2542 | return (make_float (-1.0 + XFLOAT (number)->data)); | |
7921925c | 2543 | #else |
d9c2a0f2 | 2544 | CHECK_NUMBER_COERCE_MARKER (number, 0); |
7921925c JB |
2545 | #endif /* LISP_FLOAT_TYPE */ |
2546 | ||
d9c2a0f2 EN |
2547 | XSETINT (number, XINT (number) - 1); |
2548 | return number; | |
7921925c JB |
2549 | } |
2550 | ||
2551 | DEFUN ("lognot", Flognot, Slognot, 1, 1, 0, | |
d9c2a0f2 EN |
2552 | "Return the bitwise complement of NUMBER. NUMBER must be an integer.") |
2553 | (number) | |
2554 | register Lisp_Object number; | |
7921925c | 2555 | { |
d9c2a0f2 | 2556 | CHECK_NUMBER (number, 0); |
53924017 | 2557 | XSETINT (number, ~XINT (number)); |
d9c2a0f2 | 2558 | return number; |
7921925c JB |
2559 | } |
2560 | \f | |
2561 | void | |
2562 | syms_of_data () | |
2563 | { | |
6315e761 RS |
2564 | Lisp_Object error_tail, arith_tail; |
2565 | ||
7921925c JB |
2566 | Qquote = intern ("quote"); |
2567 | Qlambda = intern ("lambda"); | |
2568 | Qsubr = intern ("subr"); | |
2569 | Qerror_conditions = intern ("error-conditions"); | |
2570 | Qerror_message = intern ("error-message"); | |
2571 | Qtop_level = intern ("top-level"); | |
2572 | ||
2573 | Qerror = intern ("error"); | |
2574 | Qquit = intern ("quit"); | |
2575 | Qwrong_type_argument = intern ("wrong-type-argument"); | |
2576 | Qargs_out_of_range = intern ("args-out-of-range"); | |
2577 | Qvoid_function = intern ("void-function"); | |
ffd56f97 | 2578 | Qcyclic_function_indirection = intern ("cyclic-function-indirection"); |
7921925c JB |
2579 | Qvoid_variable = intern ("void-variable"); |
2580 | Qsetting_constant = intern ("setting-constant"); | |
2581 | Qinvalid_read_syntax = intern ("invalid-read-syntax"); | |
2582 | ||
2583 | Qinvalid_function = intern ("invalid-function"); | |
2584 | Qwrong_number_of_arguments = intern ("wrong-number-of-arguments"); | |
2585 | Qno_catch = intern ("no-catch"); | |
2586 | Qend_of_file = intern ("end-of-file"); | |
2587 | Qarith_error = intern ("arith-error"); | |
2588 | Qbeginning_of_buffer = intern ("beginning-of-buffer"); | |
2589 | Qend_of_buffer = intern ("end-of-buffer"); | |
2590 | Qbuffer_read_only = intern ("buffer-read-only"); | |
3b8819d6 | 2591 | Qmark_inactive = intern ("mark-inactive"); |
7921925c JB |
2592 | |
2593 | Qlistp = intern ("listp"); | |
2594 | Qconsp = intern ("consp"); | |
2595 | Qsymbolp = intern ("symbolp"); | |
2596 | Qintegerp = intern ("integerp"); | |
2597 | Qnatnump = intern ("natnump"); | |
8e86942b | 2598 | Qwholenump = intern ("wholenump"); |
7921925c JB |
2599 | Qstringp = intern ("stringp"); |
2600 | Qarrayp = intern ("arrayp"); | |
2601 | Qsequencep = intern ("sequencep"); | |
2602 | Qbufferp = intern ("bufferp"); | |
2603 | Qvectorp = intern ("vectorp"); | |
2604 | Qchar_or_string_p = intern ("char-or-string-p"); | |
2605 | Qmarkerp = intern ("markerp"); | |
07bd8472 | 2606 | Qbuffer_or_string_p = intern ("buffer-or-string-p"); |
7921925c JB |
2607 | Qinteger_or_marker_p = intern ("integer-or-marker-p"); |
2608 | Qboundp = intern ("boundp"); | |
2609 | Qfboundp = intern ("fboundp"); | |
2610 | ||
2611 | #ifdef LISP_FLOAT_TYPE | |
2612 | Qfloatp = intern ("floatp"); | |
2613 | Qnumberp = intern ("numberp"); | |
2614 | Qnumber_or_marker_p = intern ("number-or-marker-p"); | |
2615 | #endif /* LISP_FLOAT_TYPE */ | |
2616 | ||
4d276982 | 2617 | Qchar_table_p = intern ("char-table-p"); |
7f0edce7 | 2618 | Qvector_or_char_table_p = intern ("vector-or-char-table-p"); |
4d276982 | 2619 | |
7921925c JB |
2620 | Qcdr = intern ("cdr"); |
2621 | ||
f845f2c9 | 2622 | /* Handle automatic advice activation */ |
ab297811 RS |
2623 | Qad_advice_info = intern ("ad-advice-info"); |
2624 | Qad_activate = intern ("ad-activate"); | |
f845f2c9 | 2625 | |
6315e761 RS |
2626 | error_tail = Fcons (Qerror, Qnil); |
2627 | ||
7921925c JB |
2628 | /* ERROR is used as a signaler for random errors for which nothing else is right */ |
2629 | ||
2630 | Fput (Qerror, Qerror_conditions, | |
6315e761 | 2631 | error_tail); |
7921925c JB |
2632 | Fput (Qerror, Qerror_message, |
2633 | build_string ("error")); | |
2634 | ||
2635 | Fput (Qquit, Qerror_conditions, | |
2636 | Fcons (Qquit, Qnil)); | |
2637 | Fput (Qquit, Qerror_message, | |
2638 | build_string ("Quit")); | |
2639 | ||
2640 | Fput (Qwrong_type_argument, Qerror_conditions, | |
6315e761 | 2641 | Fcons (Qwrong_type_argument, error_tail)); |
7921925c JB |
2642 | Fput (Qwrong_type_argument, Qerror_message, |
2643 | build_string ("Wrong type argument")); | |
2644 | ||
2645 | Fput (Qargs_out_of_range, Qerror_conditions, | |
6315e761 | 2646 | Fcons (Qargs_out_of_range, error_tail)); |
7921925c JB |
2647 | Fput (Qargs_out_of_range, Qerror_message, |
2648 | build_string ("Args out of range")); | |
2649 | ||
2650 | Fput (Qvoid_function, Qerror_conditions, | |
6315e761 | 2651 | Fcons (Qvoid_function, error_tail)); |
7921925c JB |
2652 | Fput (Qvoid_function, Qerror_message, |
2653 | build_string ("Symbol's function definition is void")); | |
2654 | ||
ffd56f97 | 2655 | Fput (Qcyclic_function_indirection, Qerror_conditions, |
6315e761 | 2656 | Fcons (Qcyclic_function_indirection, error_tail)); |
ffd56f97 JB |
2657 | Fput (Qcyclic_function_indirection, Qerror_message, |
2658 | build_string ("Symbol's chain of function indirections contains a loop")); | |
2659 | ||
7921925c | 2660 | Fput (Qvoid_variable, Qerror_conditions, |
6315e761 | 2661 | Fcons (Qvoid_variable, error_tail)); |
7921925c JB |
2662 | Fput (Qvoid_variable, Qerror_message, |
2663 | build_string ("Symbol's value as variable is void")); | |
2664 | ||
2665 | Fput (Qsetting_constant, Qerror_conditions, | |
6315e761 | 2666 | Fcons (Qsetting_constant, error_tail)); |
7921925c JB |
2667 | Fput (Qsetting_constant, Qerror_message, |
2668 | build_string ("Attempt to set a constant symbol")); | |
2669 | ||
2670 | Fput (Qinvalid_read_syntax, Qerror_conditions, | |
6315e761 | 2671 | Fcons (Qinvalid_read_syntax, error_tail)); |
7921925c JB |
2672 | Fput (Qinvalid_read_syntax, Qerror_message, |
2673 | build_string ("Invalid read syntax")); | |
2674 | ||
2675 | Fput (Qinvalid_function, Qerror_conditions, | |
6315e761 | 2676 | Fcons (Qinvalid_function, error_tail)); |
7921925c JB |
2677 | Fput (Qinvalid_function, Qerror_message, |
2678 | build_string ("Invalid function")); | |
2679 | ||
2680 | Fput (Qwrong_number_of_arguments, Qerror_conditions, | |
6315e761 | 2681 | Fcons (Qwrong_number_of_arguments, error_tail)); |
7921925c JB |
2682 | Fput (Qwrong_number_of_arguments, Qerror_message, |
2683 | build_string ("Wrong number of arguments")); | |
2684 | ||
2685 | Fput (Qno_catch, Qerror_conditions, | |
6315e761 | 2686 | Fcons (Qno_catch, error_tail)); |
7921925c JB |
2687 | Fput (Qno_catch, Qerror_message, |
2688 | build_string ("No catch for tag")); | |
2689 | ||
2690 | Fput (Qend_of_file, Qerror_conditions, | |
6315e761 | 2691 | Fcons (Qend_of_file, error_tail)); |
7921925c JB |
2692 | Fput (Qend_of_file, Qerror_message, |
2693 | build_string ("End of file during parsing")); | |
2694 | ||
6315e761 | 2695 | arith_tail = Fcons (Qarith_error, error_tail); |
7921925c | 2696 | Fput (Qarith_error, Qerror_conditions, |
6315e761 | 2697 | arith_tail); |
7921925c JB |
2698 | Fput (Qarith_error, Qerror_message, |
2699 | build_string ("Arithmetic error")); | |
2700 | ||
2701 | Fput (Qbeginning_of_buffer, Qerror_conditions, | |
6315e761 | 2702 | Fcons (Qbeginning_of_buffer, error_tail)); |
7921925c JB |
2703 | Fput (Qbeginning_of_buffer, Qerror_message, |
2704 | build_string ("Beginning of buffer")); | |
2705 | ||
2706 | Fput (Qend_of_buffer, Qerror_conditions, | |
6315e761 | 2707 | Fcons (Qend_of_buffer, error_tail)); |
7921925c JB |
2708 | Fput (Qend_of_buffer, Qerror_message, |
2709 | build_string ("End of buffer")); | |
2710 | ||
2711 | Fput (Qbuffer_read_only, Qerror_conditions, | |
6315e761 | 2712 | Fcons (Qbuffer_read_only, error_tail)); |
7921925c JB |
2713 | Fput (Qbuffer_read_only, Qerror_message, |
2714 | build_string ("Buffer is read-only")); | |
2715 | ||
6315e761 RS |
2716 | #ifdef LISP_FLOAT_TYPE |
2717 | Qrange_error = intern ("range-error"); | |
2718 | Qdomain_error = intern ("domain-error"); | |
2719 | Qsingularity_error = intern ("singularity-error"); | |
2720 | Qoverflow_error = intern ("overflow-error"); | |
2721 | Qunderflow_error = intern ("underflow-error"); | |
2722 | ||
2723 | Fput (Qdomain_error, Qerror_conditions, | |
2724 | Fcons (Qdomain_error, arith_tail)); | |
2725 | Fput (Qdomain_error, Qerror_message, | |
2726 | build_string ("Arithmetic domain error")); | |
2727 | ||
2728 | Fput (Qrange_error, Qerror_conditions, | |
2729 | Fcons (Qrange_error, arith_tail)); | |
2730 | Fput (Qrange_error, Qerror_message, | |
2731 | build_string ("Arithmetic range error")); | |
2732 | ||
2733 | Fput (Qsingularity_error, Qerror_conditions, | |
2734 | Fcons (Qsingularity_error, Fcons (Qdomain_error, arith_tail))); | |
2735 | Fput (Qsingularity_error, Qerror_message, | |
2736 | build_string ("Arithmetic singularity error")); | |
2737 | ||
2738 | Fput (Qoverflow_error, Qerror_conditions, | |
2739 | Fcons (Qoverflow_error, Fcons (Qdomain_error, arith_tail))); | |
2740 | Fput (Qoverflow_error, Qerror_message, | |
2741 | build_string ("Arithmetic overflow error")); | |
2742 | ||
2743 | Fput (Qunderflow_error, Qerror_conditions, | |
2744 | Fcons (Qunderflow_error, Fcons (Qdomain_error, arith_tail))); | |
2745 | Fput (Qunderflow_error, Qerror_message, | |
2746 | build_string ("Arithmetic underflow error")); | |
2747 | ||
2748 | staticpro (&Qrange_error); | |
2749 | staticpro (&Qdomain_error); | |
2750 | staticpro (&Qsingularity_error); | |
2751 | staticpro (&Qoverflow_error); | |
2752 | staticpro (&Qunderflow_error); | |
2753 | #endif /* LISP_FLOAT_TYPE */ | |
2754 | ||
7921925c JB |
2755 | staticpro (&Qnil); |
2756 | staticpro (&Qt); | |
2757 | staticpro (&Qquote); | |
2758 | staticpro (&Qlambda); | |
2759 | staticpro (&Qsubr); | |
2760 | staticpro (&Qunbound); | |
2761 | staticpro (&Qerror_conditions); | |
2762 | staticpro (&Qerror_message); | |
2763 | staticpro (&Qtop_level); | |
2764 | ||
2765 | staticpro (&Qerror); | |
2766 | staticpro (&Qquit); | |
2767 | staticpro (&Qwrong_type_argument); | |
2768 | staticpro (&Qargs_out_of_range); | |
2769 | staticpro (&Qvoid_function); | |
ffd56f97 | 2770 | staticpro (&Qcyclic_function_indirection); |
7921925c JB |
2771 | staticpro (&Qvoid_variable); |
2772 | staticpro (&Qsetting_constant); | |
2773 | staticpro (&Qinvalid_read_syntax); | |
2774 | staticpro (&Qwrong_number_of_arguments); | |
2775 | staticpro (&Qinvalid_function); | |
2776 | staticpro (&Qno_catch); | |
2777 | staticpro (&Qend_of_file); | |
2778 | staticpro (&Qarith_error); | |
2779 | staticpro (&Qbeginning_of_buffer); | |
2780 | staticpro (&Qend_of_buffer); | |
2781 | staticpro (&Qbuffer_read_only); | |
638b77e6 | 2782 | staticpro (&Qmark_inactive); |
7921925c JB |
2783 | |
2784 | staticpro (&Qlistp); | |
2785 | staticpro (&Qconsp); | |
2786 | staticpro (&Qsymbolp); | |
2787 | staticpro (&Qintegerp); | |
2788 | staticpro (&Qnatnump); | |
8e86942b | 2789 | staticpro (&Qwholenump); |
7921925c JB |
2790 | staticpro (&Qstringp); |
2791 | staticpro (&Qarrayp); | |
2792 | staticpro (&Qsequencep); | |
2793 | staticpro (&Qbufferp); | |
2794 | staticpro (&Qvectorp); | |
2795 | staticpro (&Qchar_or_string_p); | |
2796 | staticpro (&Qmarkerp); | |
07bd8472 | 2797 | staticpro (&Qbuffer_or_string_p); |
7921925c JB |
2798 | staticpro (&Qinteger_or_marker_p); |
2799 | #ifdef LISP_FLOAT_TYPE | |
2800 | staticpro (&Qfloatp); | |
464f8898 RS |
2801 | staticpro (&Qnumberp); |
2802 | staticpro (&Qnumber_or_marker_p); | |
7921925c | 2803 | #endif /* LISP_FLOAT_TYPE */ |
4d276982 | 2804 | staticpro (&Qchar_table_p); |
7f0edce7 | 2805 | staticpro (&Qvector_or_char_table_p); |
7921925c JB |
2806 | |
2807 | staticpro (&Qboundp); | |
2808 | staticpro (&Qfboundp); | |
2809 | staticpro (&Qcdr); | |
ab297811 RS |
2810 | staticpro (&Qad_advice_info); |
2811 | staticpro (&Qad_activate); | |
7921925c | 2812 | |
39bcc759 RS |
2813 | /* Types that type-of returns. */ |
2814 | Qinteger = intern ("integer"); | |
2815 | Qsymbol = intern ("symbol"); | |
2816 | Qstring = intern ("string"); | |
2817 | Qcons = intern ("cons"); | |
2818 | Qmarker = intern ("marker"); | |
2819 | Qoverlay = intern ("overlay"); | |
2820 | Qfloat = intern ("float"); | |
2821 | Qwindow_configuration = intern ("window-configuration"); | |
2822 | Qprocess = intern ("process"); | |
2823 | Qwindow = intern ("window"); | |
2824 | /* Qsubr = intern ("subr"); */ | |
2825 | Qcompiled_function = intern ("compiled-function"); | |
2826 | Qbuffer = intern ("buffer"); | |
2827 | Qframe = intern ("frame"); | |
2828 | Qvector = intern ("vector"); | |
fc67d5be KH |
2829 | Qchar_table = intern ("char-table"); |
2830 | Qbool_vector = intern ("bool-vector"); | |
39bcc759 RS |
2831 | |
2832 | staticpro (&Qinteger); | |
2833 | staticpro (&Qsymbol); | |
2834 | staticpro (&Qstring); | |
2835 | staticpro (&Qcons); | |
2836 | staticpro (&Qmarker); | |
2837 | staticpro (&Qoverlay); | |
2838 | staticpro (&Qfloat); | |
2839 | staticpro (&Qwindow_configuration); | |
2840 | staticpro (&Qprocess); | |
2841 | staticpro (&Qwindow); | |
2842 | /* staticpro (&Qsubr); */ | |
2843 | staticpro (&Qcompiled_function); | |
2844 | staticpro (&Qbuffer); | |
2845 | staticpro (&Qframe); | |
2846 | staticpro (&Qvector); | |
fc67d5be KH |
2847 | staticpro (&Qchar_table); |
2848 | staticpro (&Qbool_vector); | |
39bcc759 | 2849 | |
5c5aad07 KH |
2850 | DEFVAR_BOOL ("keyword-symbols-constant-flag", &keyword_symbols_constant_flag, |
2851 | "Non-nil means it is an error to set a keyword symbol.\n\ | |
2852 | A keyword symbol is a symbol whose name starts with a colon (`:')."); | |
2853 | keyword_symbols_constant_flag = 1; | |
2854 | ||
7921925c JB |
2855 | defsubr (&Seq); |
2856 | defsubr (&Snull); | |
39bcc759 | 2857 | defsubr (&Stype_of); |
7921925c JB |
2858 | defsubr (&Slistp); |
2859 | defsubr (&Snlistp); | |
2860 | defsubr (&Sconsp); | |
2861 | defsubr (&Satom); | |
2862 | defsubr (&Sintegerp); | |
464f8898 | 2863 | defsubr (&Sinteger_or_marker_p); |
7921925c JB |
2864 | defsubr (&Snumberp); |
2865 | defsubr (&Snumber_or_marker_p); | |
464f8898 RS |
2866 | #ifdef LISP_FLOAT_TYPE |
2867 | defsubr (&Sfloatp); | |
7921925c JB |
2868 | #endif /* LISP_FLOAT_TYPE */ |
2869 | defsubr (&Snatnump); | |
2870 | defsubr (&Ssymbolp); | |
2871 | defsubr (&Sstringp); | |
0f56470d | 2872 | defsubr (&Smultibyte_string_p); |
7921925c | 2873 | defsubr (&Svectorp); |
4d276982 | 2874 | defsubr (&Schar_table_p); |
7f0edce7 | 2875 | defsubr (&Svector_or_char_table_p); |
4d276982 | 2876 | defsubr (&Sbool_vector_p); |
7921925c JB |
2877 | defsubr (&Sarrayp); |
2878 | defsubr (&Ssequencep); | |
2879 | defsubr (&Sbufferp); | |
2880 | defsubr (&Smarkerp); | |
7921925c | 2881 | defsubr (&Ssubrp); |
dbc4e1c1 | 2882 | defsubr (&Sbyte_code_function_p); |
7921925c JB |
2883 | defsubr (&Schar_or_string_p); |
2884 | defsubr (&Scar); | |
2885 | defsubr (&Scdr); | |
2886 | defsubr (&Scar_safe); | |
2887 | defsubr (&Scdr_safe); | |
2888 | defsubr (&Ssetcar); | |
2889 | defsubr (&Ssetcdr); | |
2890 | defsubr (&Ssymbol_function); | |
ffd56f97 | 2891 | defsubr (&Sindirect_function); |
7921925c JB |
2892 | defsubr (&Ssymbol_plist); |
2893 | defsubr (&Ssymbol_name); | |
2894 | defsubr (&Smakunbound); | |
2895 | defsubr (&Sfmakunbound); | |
2896 | defsubr (&Sboundp); | |
2897 | defsubr (&Sfboundp); | |
2898 | defsubr (&Sfset); | |
80df38a2 | 2899 | defsubr (&Sdefalias); |
7921925c JB |
2900 | defsubr (&Ssetplist); |
2901 | defsubr (&Ssymbol_value); | |
2902 | defsubr (&Sset); | |
2903 | defsubr (&Sdefault_boundp); | |
2904 | defsubr (&Sdefault_value); | |
2905 | defsubr (&Sset_default); | |
2906 | defsubr (&Ssetq_default); | |
2907 | defsubr (&Smake_variable_buffer_local); | |
2908 | defsubr (&Smake_local_variable); | |
2909 | defsubr (&Skill_local_variable); | |
b0c2d1c6 | 2910 | defsubr (&Smake_variable_frame_local); |
62476adc | 2911 | defsubr (&Slocal_variable_p); |
f4f04cee | 2912 | defsubr (&Slocal_variable_if_set_p); |
7921925c JB |
2913 | defsubr (&Saref); |
2914 | defsubr (&Saset); | |
f2980264 | 2915 | defsubr (&Snumber_to_string); |
25e40a4b | 2916 | defsubr (&Sstring_to_number); |
7921925c JB |
2917 | defsubr (&Seqlsign); |
2918 | defsubr (&Slss); | |
2919 | defsubr (&Sgtr); | |
2920 | defsubr (&Sleq); | |
2921 | defsubr (&Sgeq); | |
2922 | defsubr (&Sneq); | |
2923 | defsubr (&Szerop); | |
2924 | defsubr (&Splus); | |
2925 | defsubr (&Sminus); | |
2926 | defsubr (&Stimes); | |
2927 | defsubr (&Squo); | |
2928 | defsubr (&Srem); | |
44fa9da5 | 2929 | defsubr (&Smod); |
7921925c JB |
2930 | defsubr (&Smax); |
2931 | defsubr (&Smin); | |
2932 | defsubr (&Slogand); | |
2933 | defsubr (&Slogior); | |
2934 | defsubr (&Slogxor); | |
2935 | defsubr (&Slsh); | |
2936 | defsubr (&Sash); | |
2937 | defsubr (&Sadd1); | |
2938 | defsubr (&Ssub1); | |
2939 | defsubr (&Slognot); | |
8e86942b | 2940 | |
c80bd143 | 2941 | XSYMBOL (Qwholenump)->function = XSYMBOL (Qnatnump)->function; |
7921925c JB |
2942 | } |
2943 | ||
a33ef3ab | 2944 | SIGTYPE |
7921925c JB |
2945 | arith_error (signo) |
2946 | int signo; | |
2947 | { | |
fe42a920 | 2948 | #if defined(USG) && !defined(POSIX_SIGNALS) |
7921925c JB |
2949 | /* USG systems forget handlers when they are used; |
2950 | must reestablish each time */ | |
2951 | signal (signo, arith_error); | |
2952 | #endif /* USG */ | |
2953 | #ifdef VMS | |
2954 | /* VMS systems are like USG. */ | |
2955 | signal (signo, arith_error); | |
2956 | #endif /* VMS */ | |
2957 | #ifdef BSD4_1 | |
2958 | sigrelse (SIGFPE); | |
2959 | #else /* not BSD4_1 */ | |
e065a56e | 2960 | sigsetmask (SIGEMPTYMASK); |
7921925c JB |
2961 | #endif /* not BSD4_1 */ |
2962 | ||
2963 | Fsignal (Qarith_error, Qnil); | |
2964 | } | |
2965 | ||
dfcf069d | 2966 | void |
7921925c JB |
2967 | init_data () |
2968 | { | |
2969 | /* Don't do this if just dumping out. | |
2970 | We don't want to call `signal' in this case | |
2971 | so that we don't have trouble with dumping | |
2972 | signal-delivering routines in an inconsistent state. */ | |
2973 | #ifndef CANNOT_DUMP | |
2974 | if (!initialized) | |
2975 | return; | |
2976 | #endif /* CANNOT_DUMP */ | |
2977 | signal (SIGFPE, arith_error); | |
7403b5c8 | 2978 | |
7921925c JB |
2979 | #ifdef uts |
2980 | signal (SIGEMT, arith_error); | |
2981 | #endif /* uts */ | |
2982 | } |