Commit | Line | Data |
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7921925c | 1 | /* Primitive operations on Lisp data types for GNU Emacs Lisp interpreter. |
73b0cd50 | 2 | Copyright (C) 1985-1986, 1988, 1993-1995, 1997-2011 |
8cabe764 | 3 | Free Software Foundation, Inc. |
7921925c JB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
9ec0b715 | 7 | GNU Emacs is free software: you can redistribute it and/or modify |
7921925c | 8 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
9 | the Free Software Foundation, either version 3 of the License, or |
10 | (at your option) any later version. | |
7921925c JB |
11 | |
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
7921925c JB |
19 | |
20 | ||
18160b98 | 21 | #include <config.h> |
68c45bf0 | 22 | #include <signal.h> |
dd8daec5 | 23 | #include <stdio.h> |
d7306fe6 | 24 | #include <setjmp.h> |
7921925c | 25 | #include "lisp.h" |
29eab336 | 26 | #include "puresize.h" |
e6e1f521 | 27 | #include "character.h" |
7921925c | 28 | #include "buffer.h" |
077d751f | 29 | #include "keyboard.h" |
b0c2d1c6 | 30 | #include "frame.h" |
a44804c2 | 31 | #include "syssignal.h" |
256c9c3a | 32 | #include "termhooks.h" /* For FRAME_KBOARD reference in y-or-n-p. */ |
4e6f2626 | 33 | #include "font.h" |
fb8e9847 | 34 | |
93b91208 | 35 | #ifdef STDC_HEADERS |
2f261542 | 36 | #include <float.h> |
93b91208 | 37 | #endif |
defa77b5 | 38 | |
ad8d56b9 PE |
39 | /* If IEEE_FLOATING_POINT isn't defined, default it from FLT_*. */ |
40 | #ifndef IEEE_FLOATING_POINT | |
41 | #if (FLT_RADIX == 2 && FLT_MANT_DIG == 24 \ | |
42 | && FLT_MIN_EXP == -125 && FLT_MAX_EXP == 128) | |
43 | #define IEEE_FLOATING_POINT 1 | |
44 | #else | |
45 | #define IEEE_FLOATING_POINT 0 | |
46 | #endif | |
47 | #endif | |
48 | ||
7921925c | 49 | #include <math.h> |
7921925c | 50 | |
024ec58f | 51 | #if !defined (atof) |
971de7fb | 52 | extern double atof (const char *); |
024ec58f BF |
53 | #endif /* !atof */ |
54 | ||
7921925c JB |
55 | Lisp_Object Qnil, Qt, Qquote, Qlambda, Qsubr, Qunbound; |
56 | Lisp_Object Qerror_conditions, Qerror_message, Qtop_level; | |
57 | Lisp_Object Qerror, Qquit, Qwrong_type_argument, Qargs_out_of_range; | |
ffd56f97 | 58 | Lisp_Object Qvoid_variable, Qvoid_function, Qcyclic_function_indirection; |
13d95cc0 | 59 | Lisp_Object Qcyclic_variable_indirection, Qcircular_list; |
7921925c JB |
60 | Lisp_Object Qsetting_constant, Qinvalid_read_syntax; |
61 | Lisp_Object Qinvalid_function, Qwrong_number_of_arguments, Qno_catch; | |
3b8819d6 | 62 | Lisp_Object Qend_of_file, Qarith_error, Qmark_inactive; |
7921925c | 63 | Lisp_Object Qbeginning_of_buffer, Qend_of_buffer, Qbuffer_read_only; |
8f9f49d7 | 64 | Lisp_Object Qtext_read_only; |
6b61353c | 65 | |
8e86942b | 66 | Lisp_Object Qintegerp, Qnatnump, Qwholenump, Qsymbolp, Qlistp, Qconsp; |
7921925c JB |
67 | Lisp_Object Qstringp, Qarrayp, Qsequencep, Qbufferp; |
68 | Lisp_Object Qchar_or_string_p, Qmarkerp, Qinteger_or_marker_p, Qvectorp; | |
cda9b832 | 69 | Lisp_Object Qbuffer_or_string_p, Qkeywordp; |
7921925c | 70 | Lisp_Object Qboundp, Qfboundp; |
7f0edce7 | 71 | Lisp_Object Qchar_table_p, Qvector_or_char_table_p; |
39bcc759 | 72 | |
7921925c | 73 | Lisp_Object Qcdr; |
c1307a23 | 74 | Lisp_Object Qad_advice_info, Qad_activate_internal; |
7921925c | 75 | |
6315e761 RS |
76 | Lisp_Object Qrange_error, Qdomain_error, Qsingularity_error; |
77 | Lisp_Object Qoverflow_error, Qunderflow_error; | |
78 | ||
464f8898 | 79 | Lisp_Object Qfloatp; |
7921925c | 80 | Lisp_Object Qnumberp, Qnumber_or_marker_p; |
7921925c | 81 | |
6b61353c KH |
82 | Lisp_Object Qinteger; |
83 | static Lisp_Object Qsymbol, Qstring, Qcons, Qmarker, Qoverlay; | |
e6cba650 DN |
84 | Lisp_Object Qwindow; |
85 | static Lisp_Object Qfloat, Qwindow_configuration; | |
8313c4e7 | 86 | Lisp_Object Qprocess; |
876c194c | 87 | static Lisp_Object Qcompiled_function, Qbuffer, Qframe, Qvector; |
81dc5de5 | 88 | static Lisp_Object Qchar_table, Qbool_vector, Qhash_table; |
6f0e897f | 89 | static Lisp_Object Qsubrp, Qmany, Qunevalled; |
4e6f2626 | 90 | Lisp_Object Qfont_spec, Qfont_entity, Qfont_object; |
39bcc759 | 91 | |
3860280a CY |
92 | Lisp_Object Qinteractive_form; |
93 | ||
ce5b453a | 94 | static void swap_in_symval_forwarding (struct Lisp_Symbol *, struct Lisp_Buffer_Local_Value *); |
d02eeab3 | 95 | |
13d95cc0 GM |
96 | |
97 | void | |
971de7fb | 98 | circular_list_error (Lisp_Object list) |
13d95cc0 | 99 | { |
740ef0b5 | 100 | xsignal (Qcircular_list, list); |
13d95cc0 GM |
101 | } |
102 | ||
103 | ||
7921925c | 104 | Lisp_Object |
971de7fb | 105 | wrong_type_argument (register Lisp_Object predicate, register Lisp_Object value) |
7921925c | 106 | { |
2de9f71c SM |
107 | /* If VALUE is not even a valid Lisp object, we'd want to abort here |
108 | where we can get a backtrace showing where it came from. We used | |
109 | to try and do that by checking the tagbits, but nowadays all | |
110 | tagbits are potentially valid. */ | |
111 | /* if ((unsigned int) XTYPE (value) >= Lisp_Type_Limit) | |
112 | * abort (); */ | |
e1351ff7 | 113 | |
740ef0b5 | 114 | xsignal2 (Qwrong_type_argument, predicate, value); |
7921925c JB |
115 | } |
116 | ||
dfcf069d | 117 | void |
971de7fb | 118 | pure_write_error (void) |
7921925c JB |
119 | { |
120 | error ("Attempt to modify read-only object"); | |
121 | } | |
122 | ||
123 | void | |
971de7fb | 124 | args_out_of_range (Lisp_Object a1, Lisp_Object a2) |
7921925c | 125 | { |
740ef0b5 | 126 | xsignal2 (Qargs_out_of_range, a1, a2); |
7921925c JB |
127 | } |
128 | ||
129 | void | |
971de7fb | 130 | args_out_of_range_3 (Lisp_Object a1, Lisp_Object a2, Lisp_Object a3) |
7921925c | 131 | { |
740ef0b5 | 132 | xsignal3 (Qargs_out_of_range, a1, a2, a3); |
7921925c JB |
133 | } |
134 | ||
7921925c JB |
135 | \f |
136 | /* Data type predicates */ | |
137 | ||
138 | DEFUN ("eq", Feq, Seq, 2, 2, 0, | |
8c1a1077 | 139 | doc: /* Return t if the two args are the same Lisp object. */) |
5842a27b | 140 | (Lisp_Object obj1, Lisp_Object obj2) |
7921925c JB |
141 | { |
142 | if (EQ (obj1, obj2)) | |
143 | return Qt; | |
144 | return Qnil; | |
145 | } | |
146 | ||
8c1a1077 PJ |
147 | DEFUN ("null", Fnull, Snull, 1, 1, 0, |
148 | doc: /* Return t if OBJECT is nil. */) | |
5842a27b | 149 | (Lisp_Object object) |
7921925c | 150 | { |
39bcc759 | 151 | if (NILP (object)) |
7921925c JB |
152 | return Qt; |
153 | return Qnil; | |
154 | } | |
155 | ||
39bcc759 | 156 | DEFUN ("type-of", Ftype_of, Stype_of, 1, 1, 0, |
8c1a1077 PJ |
157 | doc: /* Return a symbol representing the type of OBJECT. |
158 | The symbol returned names the object's basic type; | |
159 | for example, (type-of 1) returns `integer'. */) | |
5842a27b | 160 | (Lisp_Object object) |
39bcc759 | 161 | { |
8e50cc2d | 162 | switch (XTYPE (object)) |
39bcc759 | 163 | { |
2de9f71c | 164 | case_Lisp_Int: |
39bcc759 RS |
165 | return Qinteger; |
166 | ||
167 | case Lisp_Symbol: | |
168 | return Qsymbol; | |
169 | ||
170 | case Lisp_String: | |
171 | return Qstring; | |
172 | ||
173 | case Lisp_Cons: | |
174 | return Qcons; | |
175 | ||
176 | case Lisp_Misc: | |
324a6eef | 177 | switch (XMISCTYPE (object)) |
39bcc759 RS |
178 | { |
179 | case Lisp_Misc_Marker: | |
180 | return Qmarker; | |
181 | case Lisp_Misc_Overlay: | |
182 | return Qoverlay; | |
183 | case Lisp_Misc_Float: | |
184 | return Qfloat; | |
185 | } | |
186 | abort (); | |
187 | ||
188 | case Lisp_Vectorlike: | |
8e50cc2d | 189 | if (WINDOW_CONFIGURATIONP (object)) |
39bcc759 | 190 | return Qwindow_configuration; |
8e50cc2d | 191 | if (PROCESSP (object)) |
39bcc759 | 192 | return Qprocess; |
8e50cc2d | 193 | if (WINDOWP (object)) |
39bcc759 | 194 | return Qwindow; |
8e50cc2d | 195 | if (SUBRP (object)) |
39bcc759 | 196 | return Qsubr; |
876c194c SM |
197 | if (COMPILEDP (object)) |
198 | return Qcompiled_function; | |
8e50cc2d | 199 | if (BUFFERP (object)) |
39bcc759 | 200 | return Qbuffer; |
8e50cc2d | 201 | if (CHAR_TABLE_P (object)) |
fc67d5be | 202 | return Qchar_table; |
8e50cc2d | 203 | if (BOOL_VECTOR_P (object)) |
fc67d5be | 204 | return Qbool_vector; |
8e50cc2d | 205 | if (FRAMEP (object)) |
39bcc759 | 206 | return Qframe; |
8e50cc2d | 207 | if (HASH_TABLE_P (object)) |
81dc5de5 | 208 | return Qhash_table; |
4e6f2626 CY |
209 | if (FONT_SPEC_P (object)) |
210 | return Qfont_spec; | |
211 | if (FONT_ENTITY_P (object)) | |
212 | return Qfont_entity; | |
213 | if (FONT_OBJECT_P (object)) | |
214 | return Qfont_object; | |
39bcc759 RS |
215 | return Qvector; |
216 | ||
39bcc759 RS |
217 | case Lisp_Float: |
218 | return Qfloat; | |
39bcc759 RS |
219 | |
220 | default: | |
221 | abort (); | |
222 | } | |
223 | } | |
224 | ||
8c1a1077 PJ |
225 | DEFUN ("consp", Fconsp, Sconsp, 1, 1, 0, |
226 | doc: /* Return t if OBJECT is a cons cell. */) | |
5842a27b | 227 | (Lisp_Object object) |
7921925c | 228 | { |
39bcc759 | 229 | if (CONSP (object)) |
7921925c JB |
230 | return Qt; |
231 | return Qnil; | |
232 | } | |
233 | ||
25638b07 | 234 | DEFUN ("atom", Fatom, Satom, 1, 1, 0, |
8c1a1077 | 235 | doc: /* Return t if OBJECT is not a cons cell. This includes nil. */) |
5842a27b | 236 | (Lisp_Object object) |
7921925c | 237 | { |
39bcc759 | 238 | if (CONSP (object)) |
7921925c JB |
239 | return Qnil; |
240 | return Qt; | |
241 | } | |
242 | ||
25638b07 | 243 | DEFUN ("listp", Flistp, Slistp, 1, 1, 0, |
4cdcdcc9 LT |
244 | doc: /* Return t if OBJECT is a list, that is, a cons cell or nil. |
245 | Otherwise, return nil. */) | |
5842a27b | 246 | (Lisp_Object object) |
7921925c | 247 | { |
39bcc759 | 248 | if (CONSP (object) || NILP (object)) |
7921925c JB |
249 | return Qt; |
250 | return Qnil; | |
251 | } | |
252 | ||
25638b07 | 253 | DEFUN ("nlistp", Fnlistp, Snlistp, 1, 1, 0, |
8c1a1077 | 254 | doc: /* Return t if OBJECT is not a list. Lists include nil. */) |
5842a27b | 255 | (Lisp_Object object) |
7921925c | 256 | { |
39bcc759 | 257 | if (CONSP (object) || NILP (object)) |
7921925c JB |
258 | return Qnil; |
259 | return Qt; | |
260 | } | |
261 | \f | |
25638b07 | 262 | DEFUN ("symbolp", Fsymbolp, Ssymbolp, 1, 1, 0, |
8c1a1077 | 263 | doc: /* Return t if OBJECT is a symbol. */) |
5842a27b | 264 | (Lisp_Object object) |
7921925c | 265 | { |
39bcc759 | 266 | if (SYMBOLP (object)) |
7921925c JB |
267 | return Qt; |
268 | return Qnil; | |
269 | } | |
270 | ||
cda9b832 DL |
271 | /* Define this in C to avoid unnecessarily consing up the symbol |
272 | name. */ | |
273 | DEFUN ("keywordp", Fkeywordp, Skeywordp, 1, 1, 0, | |
8c1a1077 PJ |
274 | doc: /* Return t if OBJECT is a keyword. |
275 | This means that it is a symbol with a print name beginning with `:' | |
276 | interned in the initial obarray. */) | |
5842a27b | 277 | (Lisp_Object object) |
cda9b832 DL |
278 | { |
279 | if (SYMBOLP (object) | |
d5db4077 | 280 | && SREF (SYMBOL_NAME (object), 0) == ':' |
f35d5bad | 281 | && SYMBOL_INTERNED_IN_INITIAL_OBARRAY_P (object)) |
cda9b832 DL |
282 | return Qt; |
283 | return Qnil; | |
284 | } | |
285 | ||
25638b07 | 286 | DEFUN ("vectorp", Fvectorp, Svectorp, 1, 1, 0, |
8c1a1077 | 287 | doc: /* Return t if OBJECT is a vector. */) |
5842a27b | 288 | (Lisp_Object object) |
7921925c | 289 | { |
39bcc759 | 290 | if (VECTORP (object)) |
7921925c JB |
291 | return Qt; |
292 | return Qnil; | |
293 | } | |
294 | ||
25638b07 | 295 | DEFUN ("stringp", Fstringp, Sstringp, 1, 1, 0, |
8c1a1077 | 296 | doc: /* Return t if OBJECT is a string. */) |
5842a27b | 297 | (Lisp_Object object) |
7921925c | 298 | { |
39bcc759 | 299 | if (STRINGP (object)) |
7921925c JB |
300 | return Qt; |
301 | return Qnil; | |
302 | } | |
303 | ||
25638b07 | 304 | DEFUN ("multibyte-string-p", Fmultibyte_string_p, Smultibyte_string_p, |
8c1a1077 PJ |
305 | 1, 1, 0, |
306 | doc: /* Return t if OBJECT is a multibyte string. */) | |
5842a27b | 307 | (Lisp_Object object) |
25638b07 RS |
308 | { |
309 | if (STRINGP (object) && STRING_MULTIBYTE (object)) | |
310 | return Qt; | |
311 | return Qnil; | |
312 | } | |
313 | ||
314 | DEFUN ("char-table-p", Fchar_table_p, Schar_table_p, 1, 1, 0, | |
8c1a1077 | 315 | doc: /* Return t if OBJECT is a char-table. */) |
5842a27b | 316 | (Lisp_Object object) |
4d276982 RS |
317 | { |
318 | if (CHAR_TABLE_P (object)) | |
319 | return Qt; | |
320 | return Qnil; | |
321 | } | |
322 | ||
7f0edce7 RS |
323 | DEFUN ("vector-or-char-table-p", Fvector_or_char_table_p, |
324 | Svector_or_char_table_p, 1, 1, 0, | |
8c1a1077 | 325 | doc: /* Return t if OBJECT is a char-table or vector. */) |
5842a27b | 326 | (Lisp_Object object) |
7f0edce7 RS |
327 | { |
328 | if (VECTORP (object) || CHAR_TABLE_P (object)) | |
329 | return Qt; | |
330 | return Qnil; | |
331 | } | |
332 | ||
8c1a1077 PJ |
333 | DEFUN ("bool-vector-p", Fbool_vector_p, Sbool_vector_p, 1, 1, 0, |
334 | doc: /* Return t if OBJECT is a bool-vector. */) | |
5842a27b | 335 | (Lisp_Object object) |
4d276982 RS |
336 | { |
337 | if (BOOL_VECTOR_P (object)) | |
338 | return Qt; | |
339 | return Qnil; | |
340 | } | |
341 | ||
8c1a1077 PJ |
342 | DEFUN ("arrayp", Farrayp, Sarrayp, 1, 1, 0, |
343 | doc: /* Return t if OBJECT is an array (string or vector). */) | |
5842a27b | 344 | (Lisp_Object object) |
7921925c | 345 | { |
0c64a8cd | 346 | if (ARRAYP (object)) |
7921925c JB |
347 | return Qt; |
348 | return Qnil; | |
349 | } | |
350 | ||
351 | DEFUN ("sequencep", Fsequencep, Ssequencep, 1, 1, 0, | |
8c1a1077 | 352 | doc: /* Return t if OBJECT is a sequence (list or array). */) |
5842a27b | 353 | (register Lisp_Object object) |
7921925c | 354 | { |
0c64a8cd | 355 | if (CONSP (object) || NILP (object) || ARRAYP (object)) |
7921925c JB |
356 | return Qt; |
357 | return Qnil; | |
358 | } | |
359 | ||
8c1a1077 PJ |
360 | DEFUN ("bufferp", Fbufferp, Sbufferp, 1, 1, 0, |
361 | doc: /* Return t if OBJECT is an editor buffer. */) | |
5842a27b | 362 | (Lisp_Object object) |
7921925c | 363 | { |
39bcc759 | 364 | if (BUFFERP (object)) |
7921925c JB |
365 | return Qt; |
366 | return Qnil; | |
367 | } | |
368 | ||
8c1a1077 PJ |
369 | DEFUN ("markerp", Fmarkerp, Smarkerp, 1, 1, 0, |
370 | doc: /* Return t if OBJECT is a marker (editor pointer). */) | |
5842a27b | 371 | (Lisp_Object object) |
7921925c | 372 | { |
39bcc759 | 373 | if (MARKERP (object)) |
7921925c JB |
374 | return Qt; |
375 | return Qnil; | |
376 | } | |
377 | ||
8c1a1077 PJ |
378 | DEFUN ("subrp", Fsubrp, Ssubrp, 1, 1, 0, |
379 | doc: /* Return t if OBJECT is a built-in function. */) | |
5842a27b | 380 | (Lisp_Object object) |
7921925c | 381 | { |
39bcc759 | 382 | if (SUBRP (object)) |
7921925c JB |
383 | return Qt; |
384 | return Qnil; | |
385 | } | |
386 | ||
dbc4e1c1 | 387 | DEFUN ("byte-code-function-p", Fbyte_code_function_p, Sbyte_code_function_p, |
8c1a1077 PJ |
388 | 1, 1, 0, |
389 | doc: /* Return t if OBJECT is a byte-compiled function object. */) | |
5842a27b | 390 | (Lisp_Object object) |
7921925c | 391 | { |
39bcc759 | 392 | if (COMPILEDP (object)) |
7921925c JB |
393 | return Qt; |
394 | return Qnil; | |
395 | } | |
396 | ||
0321d75c | 397 | DEFUN ("char-or-string-p", Fchar_or_string_p, Schar_or_string_p, 1, 1, 0, |
8637f5ee | 398 | doc: /* Return t if OBJECT is a character or a string. */) |
5842a27b | 399 | (register Lisp_Object object) |
7921925c | 400 | { |
cfd70f33 | 401 | if (CHARACTERP (object) || STRINGP (object)) |
7921925c JB |
402 | return Qt; |
403 | return Qnil; | |
404 | } | |
405 | \f | |
8c1a1077 PJ |
406 | DEFUN ("integerp", Fintegerp, Sintegerp, 1, 1, 0, |
407 | doc: /* Return t if OBJECT is an integer. */) | |
5842a27b | 408 | (Lisp_Object object) |
7921925c | 409 | { |
39bcc759 | 410 | if (INTEGERP (object)) |
7921925c JB |
411 | return Qt; |
412 | return Qnil; | |
413 | } | |
414 | ||
464f8898 | 415 | DEFUN ("integer-or-marker-p", Finteger_or_marker_p, Sinteger_or_marker_p, 1, 1, 0, |
8c1a1077 | 416 | doc: /* Return t if OBJECT is an integer or a marker (editor pointer). */) |
5842a27b | 417 | (register Lisp_Object object) |
7921925c | 418 | { |
39bcc759 | 419 | if (MARKERP (object) || INTEGERP (object)) |
7921925c JB |
420 | return Qt; |
421 | return Qnil; | |
422 | } | |
423 | ||
0321d75c | 424 | DEFUN ("natnump", Fnatnump, Snatnump, 1, 1, 0, |
8c1a1077 | 425 | doc: /* Return t if OBJECT is a nonnegative integer. */) |
5842a27b | 426 | (Lisp_Object object) |
7921925c | 427 | { |
39bcc759 | 428 | if (NATNUMP (object)) |
7921925c JB |
429 | return Qt; |
430 | return Qnil; | |
431 | } | |
432 | ||
433 | DEFUN ("numberp", Fnumberp, Snumberp, 1, 1, 0, | |
8c1a1077 | 434 | doc: /* Return t if OBJECT is a number (floating point or integer). */) |
5842a27b | 435 | (Lisp_Object object) |
7921925c | 436 | { |
39bcc759 | 437 | if (NUMBERP (object)) |
7921925c | 438 | return Qt; |
dbc4e1c1 JB |
439 | else |
440 | return Qnil; | |
7921925c JB |
441 | } |
442 | ||
443 | DEFUN ("number-or-marker-p", Fnumber_or_marker_p, | |
444 | Snumber_or_marker_p, 1, 1, 0, | |
8c1a1077 | 445 | doc: /* Return t if OBJECT is a number or a marker. */) |
5842a27b | 446 | (Lisp_Object object) |
7921925c | 447 | { |
39bcc759 | 448 | if (NUMBERP (object) || MARKERP (object)) |
7921925c JB |
449 | return Qt; |
450 | return Qnil; | |
451 | } | |
464f8898 | 452 | |
464f8898 | 453 | DEFUN ("floatp", Ffloatp, Sfloatp, 1, 1, 0, |
8c1a1077 | 454 | doc: /* Return t if OBJECT is a floating point number. */) |
5842a27b | 455 | (Lisp_Object object) |
464f8898 | 456 | { |
39bcc759 | 457 | if (FLOATP (object)) |
464f8898 RS |
458 | return Qt; |
459 | return Qnil; | |
460 | } | |
cc94f3b2 | 461 | |
7921925c JB |
462 | \f |
463 | /* Extract and set components of lists */ | |
464 | ||
465 | DEFUN ("car", Fcar, Scar, 1, 1, 0, | |
8c1a1077 | 466 | doc: /* Return the car of LIST. If arg is nil, return nil. |
9701c742 LT |
467 | Error if arg is not nil and not a cons cell. See also `car-safe'. |
468 | ||
da46c5be LT |
469 | See Info node `(elisp)Cons Cells' for a discussion of related basic |
470 | Lisp concepts such as car, cdr, cons cell and list. */) | |
5842a27b | 471 | (register Lisp_Object list) |
7921925c | 472 | { |
0c64a8cd | 473 | return CAR (list); |
7921925c JB |
474 | } |
475 | ||
476 | DEFUN ("car-safe", Fcar_safe, Scar_safe, 1, 1, 0, | |
8c1a1077 | 477 | doc: /* Return the car of OBJECT if it is a cons cell, or else nil. */) |
5842a27b | 478 | (Lisp_Object object) |
7921925c | 479 | { |
0c64a8cd | 480 | return CAR_SAFE (object); |
7921925c JB |
481 | } |
482 | ||
483 | DEFUN ("cdr", Fcdr, Scdr, 1, 1, 0, | |
8c1a1077 | 484 | doc: /* Return the cdr of LIST. If arg is nil, return nil. |
9701c742 LT |
485 | Error if arg is not nil and not a cons cell. See also `cdr-safe'. |
486 | ||
da46c5be LT |
487 | See Info node `(elisp)Cons Cells' for a discussion of related basic |
488 | Lisp concepts such as cdr, car, cons cell and list. */) | |
5842a27b | 489 | (register Lisp_Object list) |
7921925c | 490 | { |
0c64a8cd | 491 | return CDR (list); |
7921925c JB |
492 | } |
493 | ||
494 | DEFUN ("cdr-safe", Fcdr_safe, Scdr_safe, 1, 1, 0, | |
8c1a1077 | 495 | doc: /* Return the cdr of OBJECT if it is a cons cell, or else nil. */) |
5842a27b | 496 | (Lisp_Object object) |
7921925c | 497 | { |
0c64a8cd | 498 | return CDR_SAFE (object); |
7921925c JB |
499 | } |
500 | ||
501 | DEFUN ("setcar", Fsetcar, Ssetcar, 2, 2, 0, | |
8c1a1077 | 502 | doc: /* Set the car of CELL to be NEWCAR. Returns NEWCAR. */) |
5842a27b | 503 | (register Lisp_Object cell, Lisp_Object newcar) |
7921925c | 504 | { |
0c64a8cd | 505 | CHECK_CONS (cell); |
7921925c | 506 | CHECK_IMPURE (cell); |
f3fbd155 | 507 | XSETCAR (cell, newcar); |
7921925c JB |
508 | return newcar; |
509 | } | |
510 | ||
511 | DEFUN ("setcdr", Fsetcdr, Ssetcdr, 2, 2, 0, | |
8c1a1077 | 512 | doc: /* Set the cdr of CELL to be NEWCDR. Returns NEWCDR. */) |
5842a27b | 513 | (register Lisp_Object cell, Lisp_Object newcdr) |
7921925c | 514 | { |
0c64a8cd | 515 | CHECK_CONS (cell); |
7921925c | 516 | CHECK_IMPURE (cell); |
f3fbd155 | 517 | XSETCDR (cell, newcdr); |
7921925c JB |
518 | return newcdr; |
519 | } | |
520 | \f | |
521 | /* Extract and set components of symbols */ | |
522 | ||
8c1a1077 PJ |
523 | DEFUN ("boundp", Fboundp, Sboundp, 1, 1, 0, |
524 | doc: /* Return t if SYMBOL's value is not void. */) | |
5842a27b | 525 | (register Lisp_Object symbol) |
7921925c JB |
526 | { |
527 | Lisp_Object valcontents; | |
ce5b453a | 528 | struct Lisp_Symbol *sym; |
b7826503 | 529 | CHECK_SYMBOL (symbol); |
ce5b453a | 530 | sym = XSYMBOL (symbol); |
7921925c | 531 | |
ce5b453a SM |
532 | start: |
533 | switch (sym->redirect) | |
534 | { | |
535 | case SYMBOL_PLAINVAL: valcontents = SYMBOL_VAL (sym); break; | |
536 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
537 | case SYMBOL_LOCALIZED: | |
538 | { | |
539 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
540 | if (blv->fwd) | |
541 | /* In set_internal, we un-forward vars when their value is | |
542 | set to Qunbound. */ | |
543 | return Qt; | |
544 | else | |
545 | { | |
546 | swap_in_symval_forwarding (sym, blv); | |
547 | valcontents = BLV_VALUE (blv); | |
548 | } | |
549 | break; | |
550 | } | |
551 | case SYMBOL_FORWARDED: | |
552 | /* In set_internal, we un-forward vars when their value is | |
553 | set to Qunbound. */ | |
554 | return Qt; | |
555 | default: abort (); | |
556 | } | |
7921925c | 557 | |
1bfcade3 | 558 | return (EQ (valcontents, Qunbound) ? Qnil : Qt); |
7921925c JB |
559 | } |
560 | ||
8c1a1077 PJ |
561 | DEFUN ("fboundp", Ffboundp, Sfboundp, 1, 1, 0, |
562 | doc: /* Return t if SYMBOL's function definition is not void. */) | |
5842a27b | 563 | (register Lisp_Object symbol) |
7921925c | 564 | { |
b7826503 | 565 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 566 | return (EQ (XSYMBOL (symbol)->function, Qunbound) ? Qnil : Qt); |
7921925c JB |
567 | } |
568 | ||
8c1a1077 | 569 | DEFUN ("makunbound", Fmakunbound, Smakunbound, 1, 1, 0, |
bfb96cb7 FP |
570 | doc: /* Make SYMBOL's value be void. |
571 | Return SYMBOL. */) | |
5842a27b | 572 | (register Lisp_Object symbol) |
7921925c | 573 | { |
b7826503 | 574 | CHECK_SYMBOL (symbol); |
64ec26d6 | 575 | if (SYMBOL_CONSTANT_P (symbol)) |
740ef0b5 | 576 | xsignal1 (Qsetting_constant, symbol); |
d9c2a0f2 EN |
577 | Fset (symbol, Qunbound); |
578 | return symbol; | |
7921925c JB |
579 | } |
580 | ||
8c1a1077 | 581 | DEFUN ("fmakunbound", Ffmakunbound, Sfmakunbound, 1, 1, 0, |
bfb96cb7 FP |
582 | doc: /* Make SYMBOL's function definition be void. |
583 | Return SYMBOL. */) | |
5842a27b | 584 | (register Lisp_Object symbol) |
7921925c | 585 | { |
b7826503 | 586 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 587 | if (NILP (symbol) || EQ (symbol, Qt)) |
740ef0b5 | 588 | xsignal1 (Qsetting_constant, symbol); |
d9c2a0f2 EN |
589 | XSYMBOL (symbol)->function = Qunbound; |
590 | return symbol; | |
7921925c JB |
591 | } |
592 | ||
593 | DEFUN ("symbol-function", Fsymbol_function, Ssymbol_function, 1, 1, 0, | |
8c1a1077 | 594 | doc: /* Return SYMBOL's function definition. Error if that is void. */) |
5842a27b | 595 | (register Lisp_Object symbol) |
7921925c | 596 | { |
b7826503 | 597 | CHECK_SYMBOL (symbol); |
740ef0b5 KS |
598 | if (!EQ (XSYMBOL (symbol)->function, Qunbound)) |
599 | return XSYMBOL (symbol)->function; | |
600 | xsignal1 (Qvoid_function, symbol); | |
7921925c JB |
601 | } |
602 | ||
8c1a1077 PJ |
603 | DEFUN ("symbol-plist", Fsymbol_plist, Ssymbol_plist, 1, 1, 0, |
604 | doc: /* Return SYMBOL's property list. */) | |
5842a27b | 605 | (register Lisp_Object symbol) |
7921925c | 606 | { |
b7826503 | 607 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 608 | return XSYMBOL (symbol)->plist; |
7921925c JB |
609 | } |
610 | ||
8c1a1077 PJ |
611 | DEFUN ("symbol-name", Fsymbol_name, Ssymbol_name, 1, 1, 0, |
612 | doc: /* Return SYMBOL's name, a string. */) | |
5842a27b | 613 | (register Lisp_Object symbol) |
7921925c JB |
614 | { |
615 | register Lisp_Object name; | |
616 | ||
b7826503 | 617 | CHECK_SYMBOL (symbol); |
84023177 | 618 | name = SYMBOL_NAME (symbol); |
7921925c JB |
619 | return name; |
620 | } | |
621 | ||
622 | DEFUN ("fset", Ffset, Sfset, 2, 2, 0, | |
8c1a1077 | 623 | doc: /* Set SYMBOL's function definition to DEFINITION, and return DEFINITION. */) |
5842a27b | 624 | (register Lisp_Object symbol, Lisp_Object definition) |
d9c2a0f2 | 625 | { |
764ea377 JB |
626 | register Lisp_Object function; |
627 | ||
b7826503 | 628 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 629 | if (NILP (symbol) || EQ (symbol, Qt)) |
740ef0b5 | 630 | xsignal1 (Qsetting_constant, symbol); |
764ea377 JB |
631 | |
632 | function = XSYMBOL (symbol)->function; | |
633 | ||
634 | if (!NILP (Vautoload_queue) && !EQ (function, Qunbound)) | |
635 | Vautoload_queue = Fcons (Fcons (symbol, function), Vautoload_queue); | |
636 | ||
637 | if (CONSP (function) && EQ (XCAR (function), Qautoload)) | |
638 | Fput (symbol, Qautoload, XCDR (function)); | |
639 | ||
8c0b5540 | 640 | XSYMBOL (symbol)->function = definition; |
f845f2c9 | 641 | /* Handle automatic advice activation */ |
d9c2a0f2 | 642 | if (CONSP (XSYMBOL (symbol)->plist) && !NILP (Fget (symbol, Qad_advice_info))) |
f845f2c9 | 643 | { |
c1307a23 | 644 | call2 (Qad_activate_internal, symbol, Qnil); |
8c0b5540 | 645 | definition = XSYMBOL (symbol)->function; |
f845f2c9 | 646 | } |
8c0b5540 | 647 | return definition; |
7921925c JB |
648 | } |
649 | ||
d2fde41d | 650 | DEFUN ("defalias", Fdefalias, Sdefalias, 2, 3, 0, |
8c1a1077 | 651 | doc: /* Set SYMBOL's function definition to DEFINITION, and return DEFINITION. |
96143227 RS |
652 | Associates the function with the current load file, if any. |
653 | The optional third argument DOCSTRING specifies the documentation string | |
654 | for SYMBOL; if it is omitted or nil, SYMBOL uses the documentation string | |
655 | determined by DEFINITION. */) | |
5842a27b | 656 | (register Lisp_Object symbol, Lisp_Object definition, Lisp_Object docstring) |
fc08c367 | 657 | { |
8a658a52 | 658 | CHECK_SYMBOL (symbol); |
894f6538 RS |
659 | if (CONSP (XSYMBOL (symbol)->function) |
660 | && EQ (XCAR (XSYMBOL (symbol)->function), Qautoload)) | |
661 | LOADHIST_ATTACH (Fcons (Qt, symbol)); | |
32f532b7 | 662 | definition = Ffset (symbol, definition); |
62a29071 | 663 | LOADHIST_ATTACH (Fcons (Qdefun, symbol)); |
d2fde41d SM |
664 | if (!NILP (docstring)) |
665 | Fput (symbol, Qfunction_documentation, docstring); | |
73e0d965 | 666 | return definition; |
fc08c367 RS |
667 | } |
668 | ||
7921925c | 669 | DEFUN ("setplist", Fsetplist, Ssetplist, 2, 2, 0, |
6b61353c | 670 | doc: /* Set SYMBOL's property list to NEWPLIST, and return NEWPLIST. */) |
5842a27b | 671 | (register Lisp_Object symbol, Lisp_Object newplist) |
7921925c | 672 | { |
b7826503 | 673 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 674 | XSYMBOL (symbol)->plist = newplist; |
7921925c JB |
675 | return newplist; |
676 | } | |
ffd56f97 | 677 | |
6f0e897f | 678 | DEFUN ("subr-arity", Fsubr_arity, Ssubr_arity, 1, 1, 0, |
8c1a1077 PJ |
679 | doc: /* Return minimum and maximum number of args allowed for SUBR. |
680 | SUBR must be a built-in function. | |
681 | The returned value is a pair (MIN . MAX). MIN is the minimum number | |
682 | of args. MAX is the maximum number or the symbol `many', for a | |
683 | function with `&rest' args, or `unevalled' for a special form. */) | |
5842a27b | 684 | (Lisp_Object subr) |
6f0e897f DL |
685 | { |
686 | short minargs, maxargs; | |
0c64a8cd | 687 | CHECK_SUBR (subr); |
6f0e897f DL |
688 | minargs = XSUBR (subr)->min_args; |
689 | maxargs = XSUBR (subr)->max_args; | |
690 | if (maxargs == MANY) | |
691 | return Fcons (make_number (minargs), Qmany); | |
692 | else if (maxargs == UNEVALLED) | |
693 | return Fcons (make_number (minargs), Qunevalled); | |
694 | else | |
695 | return Fcons (make_number (minargs), make_number (maxargs)); | |
696 | } | |
697 | ||
0fddae66 SM |
698 | DEFUN ("subr-name", Fsubr_name, Ssubr_name, 1, 1, 0, |
699 | doc: /* Return name of subroutine SUBR. | |
700 | SUBR must be a built-in function. */) | |
5842a27b | 701 | (Lisp_Object subr) |
0fddae66 SM |
702 | { |
703 | const char *name; | |
0c64a8cd | 704 | CHECK_SUBR (subr); |
0fddae66 SM |
705 | name = XSUBR (subr)->symbol_name; |
706 | return make_string (name, strlen (name)); | |
707 | } | |
708 | ||
6b61353c KH |
709 | DEFUN ("interactive-form", Finteractive_form, Sinteractive_form, 1, 1, 0, |
710 | doc: /* Return the interactive form of CMD or nil if none. | |
df133612 LT |
711 | If CMD is not a command, the return value is nil. |
712 | Value, if non-nil, is a list \(interactive SPEC). */) | |
5842a27b | 713 | (Lisp_Object cmd) |
cc515226 | 714 | { |
c4f46926 | 715 | Lisp_Object fun = indirect_function (cmd); /* Check cycles. */ |
764ea377 | 716 | |
c4f46926 SM |
717 | if (NILP (fun) || EQ (fun, Qunbound)) |
718 | return Qnil; | |
719 | ||
720 | /* Use an `interactive-form' property if present, analogous to the | |
721 | function-documentation property. */ | |
722 | fun = cmd; | |
723 | while (SYMBOLP (fun)) | |
724 | { | |
3860280a | 725 | Lisp_Object tmp = Fget (fun, Qinteractive_form); |
c4f46926 SM |
726 | if (!NILP (tmp)) |
727 | return tmp; | |
728 | else | |
729 | fun = Fsymbol_function (fun); | |
730 | } | |
6b61353c KH |
731 | |
732 | if (SUBRP (fun)) | |
733 | { | |
eec47d6b | 734 | const char *spec = XSUBR (fun)->intspec; |
8a6d230a MC |
735 | if (spec) |
736 | return list2 (Qinteractive, | |
737 | (*spec != '(') ? build_string (spec) : | |
738 | Fcar (Fread_from_string (build_string (spec), Qnil, Qnil))); | |
6b61353c KH |
739 | } |
740 | else if (COMPILEDP (fun)) | |
741 | { | |
742 | if ((ASIZE (fun) & PSEUDOVECTOR_SIZE_MASK) > COMPILED_INTERACTIVE) | |
743 | return list2 (Qinteractive, AREF (fun, COMPILED_INTERACTIVE)); | |
744 | } | |
745 | else if (CONSP (fun)) | |
746 | { | |
747 | Lisp_Object funcar = XCAR (fun); | |
b38b1ec0 SM |
748 | if (EQ (funcar, Qclosure)) |
749 | fun = Fcdr (XCDR (fun)), funcar = Fcar (fun); | |
6b61353c KH |
750 | if (EQ (funcar, Qlambda)) |
751 | return Fassq (Qinteractive, Fcdr (XCDR (fun))); | |
752 | else if (EQ (funcar, Qautoload)) | |
753 | { | |
754 | struct gcpro gcpro1; | |
755 | GCPRO1 (cmd); | |
756 | do_autoload (fun, cmd); | |
757 | UNGCPRO; | |
758 | return Finteractive_form (cmd); | |
759 | } | |
760 | } | |
cc515226 GM |
761 | return Qnil; |
762 | } | |
763 | ||
7921925c | 764 | \f |
f35d5bad GM |
765 | /*********************************************************************** |
766 | Getting and Setting Values of Symbols | |
767 | ***********************************************************************/ | |
768 | ||
769 | /* Return the symbol holding SYMBOL's value. Signal | |
770 | `cyclic-variable-indirection' if SYMBOL's chain of variable | |
771 | indirections contains a loop. */ | |
772 | ||
ad97b375 | 773 | struct Lisp_Symbol * |
971de7fb | 774 | indirect_variable (struct Lisp_Symbol *symbol) |
f35d5bad | 775 | { |
ad97b375 | 776 | struct Lisp_Symbol *tortoise, *hare; |
f35d5bad GM |
777 | |
778 | hare = tortoise = symbol; | |
779 | ||
ce5b453a | 780 | while (hare->redirect == SYMBOL_VARALIAS) |
f35d5bad | 781 | { |
ce5b453a SM |
782 | hare = SYMBOL_ALIAS (hare); |
783 | if (hare->redirect != SYMBOL_VARALIAS) | |
f35d5bad | 784 | break; |
bfb96cb7 | 785 | |
ce5b453a SM |
786 | hare = SYMBOL_ALIAS (hare); |
787 | tortoise = SYMBOL_ALIAS (tortoise); | |
f35d5bad | 788 | |
ad97b375 SM |
789 | if (hare == tortoise) |
790 | { | |
791 | Lisp_Object tem; | |
792 | XSETSYMBOL (tem, symbol); | |
793 | xsignal1 (Qcyclic_variable_indirection, tem); | |
794 | } | |
f35d5bad GM |
795 | } |
796 | ||
797 | return hare; | |
798 | } | |
799 | ||
800 | ||
801 | DEFUN ("indirect-variable", Findirect_variable, Sindirect_variable, 1, 1, 0, | |
8c1a1077 PJ |
802 | doc: /* Return the variable at the end of OBJECT's variable chain. |
803 | If OBJECT is a symbol, follow all variable indirections and return the final | |
804 | variable. If OBJECT is not a symbol, just return it. | |
805 | Signal a cyclic-variable-indirection error if there is a loop in the | |
806 | variable chain of symbols. */) | |
5842a27b | 807 | (Lisp_Object object) |
f35d5bad GM |
808 | { |
809 | if (SYMBOLP (object)) | |
ad97b375 | 810 | XSETSYMBOL (object, indirect_variable (XSYMBOL (object))); |
f35d5bad GM |
811 | return object; |
812 | } | |
813 | ||
7921925c JB |
814 | |
815 | /* Given the raw contents of a symbol value cell, | |
816 | return the Lisp value of the symbol. | |
817 | This does not handle buffer-local variables; use | |
818 | swap_in_symval_forwarding for that. */ | |
819 | ||
ce5b453a SM |
820 | #define do_blv_forwarding(blv) \ |
821 | ((blv)->forwarded ? do_symval_forwarding (BLV_FWD (blv)) : BLV_VALUE (blv)) | |
822 | ||
7921925c | 823 | Lisp_Object |
971de7fb | 824 | do_symval_forwarding (register union Lisp_Fwd *valcontents) |
7921925c JB |
825 | { |
826 | register Lisp_Object val; | |
ce5b453a SM |
827 | switch (XFWDTYPE (valcontents)) |
828 | { | |
829 | case Lisp_Fwd_Int: | |
830 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
831 | return val; | |
832 | ||
833 | case Lisp_Fwd_Bool: | |
834 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
835 | ||
836 | case Lisp_Fwd_Obj: | |
837 | return *XOBJFWD (valcontents)->objvar; | |
838 | ||
839 | case Lisp_Fwd_Buffer_Obj: | |
840 | return PER_BUFFER_VALUE (current_buffer, | |
841 | XBUFFER_OBJFWD (valcontents)->offset); | |
842 | ||
843 | case Lisp_Fwd_Kboard_Obj: | |
844 | /* We used to simply use current_kboard here, but from Lisp | |
845 | code, it's value is often unexpected. It seems nicer to | |
846 | allow constructions like this to work as intuitively expected: | |
847 | ||
848 | (with-selected-frame frame | |
849 | (define-key local-function-map "\eOP" [f1])) | |
850 | ||
851 | On the other hand, this affects the semantics of | |
852 | last-command and real-last-command, and people may rely on | |
853 | that. I took a quick look at the Lisp codebase, and I | |
854 | don't think anything will break. --lorentey */ | |
855 | return *(Lisp_Object *)(XKBOARD_OBJFWD (valcontents)->offset | |
856 | + (char *)FRAME_KBOARD (SELECTED_FRAME ())); | |
857 | default: abort (); | |
858 | } | |
7921925c JB |
859 | } |
860 | ||
d9c2a0f2 EN |
861 | /* Store NEWVAL into SYMBOL, where VALCONTENTS is found in the value cell |
862 | of SYMBOL. If SYMBOL is buffer-local, VALCONTENTS should be the | |
7921925c | 863 | buffer-independent contents of the value cell: forwarded just one |
7a283f36 GM |
864 | step past the buffer-localness. |
865 | ||
866 | BUF non-zero means set the value in buffer BUF instead of the | |
867 | current buffer. This only plays a role for per-buffer variables. */ | |
7921925c | 868 | |
ce5b453a SM |
869 | #define store_blv_forwarding(blv, newval, buf) \ |
870 | do { \ | |
871 | if ((blv)->forwarded) \ | |
872 | store_symval_forwarding (BLV_FWD (blv), (newval), (buf)); \ | |
873 | else \ | |
874 | SET_BLV_VALUE (blv, newval); \ | |
875 | } while (0) | |
876 | ||
877 | static void | |
971de7fb | 878 | store_symval_forwarding (union Lisp_Fwd *valcontents, register Lisp_Object newval, struct buffer *buf) |
7921925c | 879 | { |
ce5b453a | 880 | switch (XFWDTYPE (valcontents)) |
7921925c | 881 | { |
ce5b453a SM |
882 | case Lisp_Fwd_Int: |
883 | CHECK_NUMBER (newval); | |
884 | *XINTFWD (valcontents)->intvar = XINT (newval); | |
885 | break; | |
aa3830c4 | 886 | |
ce5b453a SM |
887 | case Lisp_Fwd_Bool: |
888 | *XBOOLFWD (valcontents)->boolvar = !NILP (newval); | |
889 | break; | |
aa3830c4 | 890 | |
ce5b453a SM |
891 | case Lisp_Fwd_Obj: |
892 | *XOBJFWD (valcontents)->objvar = newval; | |
aa3830c4 | 893 | |
ce5b453a SM |
894 | /* If this variable is a default for something stored |
895 | in the buffer itself, such as default-fill-column, | |
896 | find the buffers that don't have local values for it | |
897 | and update them. */ | |
898 | if (XOBJFWD (valcontents)->objvar > (Lisp_Object *) &buffer_defaults | |
899 | && XOBJFWD (valcontents)->objvar < (Lisp_Object *) (&buffer_defaults + 1)) | |
46b2ac21 | 900 | { |
ce5b453a SM |
901 | int offset = ((char *) XOBJFWD (valcontents)->objvar |
902 | - (char *) &buffer_defaults); | |
903 | int idx = PER_BUFFER_IDX (offset); | |
aa3830c4 | 904 | |
ce5b453a | 905 | Lisp_Object tail; |
aa3830c4 | 906 | |
ce5b453a SM |
907 | if (idx <= 0) |
908 | break; | |
aa3830c4 | 909 | |
ce5b453a | 910 | for (tail = Vbuffer_alist; CONSP (tail); tail = XCDR (tail)) |
6b61353c | 911 | { |
ce5b453a SM |
912 | Lisp_Object buf; |
913 | struct buffer *b; | |
6b61353c | 914 | |
ce5b453a SM |
915 | buf = Fcdr (XCAR (tail)); |
916 | if (!BUFFERP (buf)) continue; | |
917 | b = XBUFFER (buf); | |
6b61353c | 918 | |
ce5b453a SM |
919 | if (! PER_BUFFER_VALUE_P (b, idx)) |
920 | PER_BUFFER_VALUE (b, offset) = newval; | |
6b61353c | 921 | } |
ce5b453a SM |
922 | } |
923 | break; | |
7403b5c8 | 924 | |
ce5b453a SM |
925 | case Lisp_Fwd_Buffer_Obj: |
926 | { | |
927 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
928 | Lisp_Object type = XBUFFER_OBJFWD (valcontents)->slottype; | |
929 | ||
930 | if (!(NILP (type) || NILP (newval) | |
931 | || (XINT (type) == LISP_INT_TAG | |
932 | ? INTEGERP (newval) | |
933 | : XTYPE (newval) == XINT (type)))) | |
934 | buffer_slot_type_mismatch (newval, XINT (type)); | |
935 | ||
936 | if (buf == NULL) | |
937 | buf = current_buffer; | |
938 | PER_BUFFER_VALUE (buf, offset) = newval; | |
939 | } | |
940 | break; | |
7403b5c8 | 941 | |
ce5b453a SM |
942 | case Lisp_Fwd_Kboard_Obj: |
943 | { | |
944 | char *base = (char *) FRAME_KBOARD (SELECTED_FRAME ()); | |
945 | char *p = base + XKBOARD_OBJFWD (valcontents)->offset; | |
946 | *(Lisp_Object *) p = newval; | |
947 | } | |
7921925c JB |
948 | break; |
949 | ||
7921925c | 950 | default: |
ce5b453a | 951 | abort (); /* goto def; */ |
7921925c JB |
952 | } |
953 | } | |
954 | ||
b0d53add GM |
955 | /* Set up SYMBOL to refer to its global binding. |
956 | This makes it safe to alter the status of other bindings. */ | |
957 | ||
958 | void | |
971de7fb | 959 | swap_in_global_binding (struct Lisp_Symbol *symbol) |
b0d53add | 960 | { |
ce5b453a | 961 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (symbol); |
b0d53add GM |
962 | |
963 | /* Unload the previously loaded binding. */ | |
ce5b453a SM |
964 | if (blv->fwd) |
965 | SET_BLV_VALUE (blv, do_symval_forwarding (blv->fwd)); | |
bfb96cb7 | 966 | |
b0d53add | 967 | /* Select the global binding in the symbol. */ |
ce5b453a SM |
968 | blv->valcell = blv->defcell; |
969 | if (blv->fwd) | |
970 | store_symval_forwarding (blv->fwd, XCDR (blv->defcell), NULL); | |
b0d53add GM |
971 | |
972 | /* Indicate that the global binding is set up now. */ | |
ce5b453a SM |
973 | blv->where = Qnil; |
974 | SET_BLV_FOUND (blv, 0); | |
b0d53add GM |
975 | } |
976 | ||
2829d05f | 977 | /* Set up the buffer-local symbol SYMBOL for validity in the current buffer. |
42e975f0 RS |
978 | VALCONTENTS is the contents of its value cell, |
979 | which points to a struct Lisp_Buffer_Local_Value. | |
980 | ||
981 | Return the value forwarded one step past the buffer-local stage. | |
982 | This could be another forwarding pointer. */ | |
7921925c | 983 | |
ce5b453a | 984 | static void |
971de7fb | 985 | swap_in_symval_forwarding (struct Lisp_Symbol *symbol, struct Lisp_Buffer_Local_Value *blv) |
7921925c | 986 | { |
7921925c | 987 | register Lisp_Object tem1; |
bfb96cb7 | 988 | |
ce5b453a SM |
989 | eassert (blv == SYMBOL_BLV (symbol)); |
990 | ||
991 | tem1 = blv->where; | |
7921925c | 992 | |
42e975f0 | 993 | if (NILP (tem1) |
ce5b453a SM |
994 | || (blv->frame_local |
995 | ? !EQ (selected_frame, tem1) | |
996 | : current_buffer != XBUFFER (tem1))) | |
7921925c | 997 | { |
bfb96cb7 | 998 | |
42e975f0 | 999 | /* Unload the previously loaded binding. */ |
ce5b453a SM |
1000 | tem1 = blv->valcell; |
1001 | if (blv->fwd) | |
1002 | SET_BLV_VALUE (blv, do_symval_forwarding (blv->fwd)); | |
42e975f0 | 1003 | /* Choose the new binding. */ |
ce5b453a SM |
1004 | { |
1005 | Lisp_Object var; | |
1006 | XSETSYMBOL (var, symbol); | |
1007 | if (blv->frame_local) | |
1008 | { | |
1009 | tem1 = assq_no_quit (var, XFRAME (selected_frame)->param_alist); | |
1010 | blv->where = selected_frame; | |
1011 | } | |
1012 | else | |
1013 | { | |
4b4deea2 | 1014 | tem1 = assq_no_quit (var, BVAR (current_buffer, local_var_alist)); |
ce5b453a SM |
1015 | XSETBUFFER (blv->where, current_buffer); |
1016 | } | |
1017 | } | |
1018 | if (!(blv->found = !NILP (tem1))) | |
1019 | tem1 = blv->defcell; | |
b0c2d1c6 | 1020 | |
42e975f0 | 1021 | /* Load the new binding. */ |
ce5b453a SM |
1022 | blv->valcell = tem1; |
1023 | if (blv->fwd) | |
1024 | store_symval_forwarding (blv->fwd, BLV_VALUE (blv), NULL); | |
7921925c | 1025 | } |
7921925c JB |
1026 | } |
1027 | \f | |
14e76af9 JB |
1028 | /* Find the value of a symbol, returning Qunbound if it's not bound. |
1029 | This is helpful for code which just wants to get a variable's value | |
8e6208c5 | 1030 | if it has one, without signaling an error. |
14e76af9 JB |
1031 | Note that it must not be possible to quit |
1032 | within this function. Great care is required for this. */ | |
7921925c | 1033 | |
14e76af9 | 1034 | Lisp_Object |
971de7fb | 1035 | find_symbol_value (Lisp_Object symbol) |
7921925c | 1036 | { |
ce5b453a | 1037 | struct Lisp_Symbol *sym; |
bfb96cb7 | 1038 | |
b7826503 | 1039 | CHECK_SYMBOL (symbol); |
ce5b453a | 1040 | sym = XSYMBOL (symbol); |
7921925c | 1041 | |
ce5b453a SM |
1042 | start: |
1043 | switch (sym->redirect) | |
1044 | { | |
1045 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
1046 | case SYMBOL_PLAINVAL: return SYMBOL_VAL (sym); | |
1047 | case SYMBOL_LOCALIZED: | |
1048 | { | |
1049 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
1050 | swap_in_symval_forwarding (sym, blv); | |
1051 | return blv->fwd ? do_symval_forwarding (blv->fwd) : BLV_VALUE (blv); | |
1052 | } | |
1053 | /* FALLTHROUGH */ | |
1054 | case SYMBOL_FORWARDED: | |
1055 | return do_symval_forwarding (SYMBOL_FWD (sym)); | |
1056 | default: abort (); | |
1057 | } | |
7921925c JB |
1058 | } |
1059 | ||
14e76af9 | 1060 | DEFUN ("symbol-value", Fsymbol_value, Ssymbol_value, 1, 1, 0, |
8c1a1077 | 1061 | doc: /* Return SYMBOL's value. Error if that is void. */) |
5842a27b | 1062 | (Lisp_Object symbol) |
14e76af9 | 1063 | { |
0671d7c0 | 1064 | Lisp_Object val; |
14e76af9 | 1065 | |
d9c2a0f2 | 1066 | val = find_symbol_value (symbol); |
740ef0b5 | 1067 | if (!EQ (val, Qunbound)) |
14e76af9 | 1068 | return val; |
740ef0b5 KS |
1069 | |
1070 | xsignal1 (Qvoid_variable, symbol); | |
14e76af9 JB |
1071 | } |
1072 | ||
7921925c | 1073 | DEFUN ("set", Fset, Sset, 2, 2, 0, |
8c1a1077 | 1074 | doc: /* Set SYMBOL's value to NEWVAL, and return NEWVAL. */) |
5842a27b | 1075 | (register Lisp_Object symbol, Lisp_Object newval) |
05ef7169 | 1076 | { |
94b612ad | 1077 | set_internal (symbol, newval, Qnil, 0); |
ce5b453a | 1078 | return newval; |
05ef7169 RS |
1079 | } |
1080 | ||
1f35ce36 RS |
1081 | /* Return 1 if SYMBOL currently has a let-binding |
1082 | which was made in the buffer that is now current. */ | |
1083 | ||
1084 | static int | |
ce5b453a | 1085 | let_shadows_buffer_binding_p (struct Lisp_Symbol *symbol) |
1f35ce36 | 1086 | { |
ce5b453a | 1087 | struct specbinding *p; |
1f35ce36 RS |
1088 | |
1089 | for (p = specpdl_ptr - 1; p >= specpdl; p--) | |
f35d5bad GM |
1090 | if (p->func == NULL |
1091 | && CONSP (p->symbol)) | |
1092 | { | |
ad97b375 | 1093 | struct Lisp_Symbol *let_bound_symbol = XSYMBOL (XCAR (p->symbol)); |
ce5b453a SM |
1094 | eassert (let_bound_symbol->redirect != SYMBOL_VARALIAS); |
1095 | if (symbol == let_bound_symbol | |
f35d5bad GM |
1096 | && XBUFFER (XCDR (XCDR (p->symbol))) == current_buffer) |
1097 | break; | |
1098 | } | |
1f35ce36 | 1099 | |
f35d5bad | 1100 | return p >= specpdl; |
1f35ce36 RS |
1101 | } |
1102 | ||
ce5b453a | 1103 | static int |
971de7fb | 1104 | let_shadows_global_binding_p (Lisp_Object symbol) |
ce5b453a SM |
1105 | { |
1106 | struct specbinding *p; | |
1107 | ||
1108 | for (p = specpdl_ptr - 1; p >= specpdl; p--) | |
1109 | if (p->func == NULL && EQ (p->symbol, symbol)) | |
1110 | break; | |
1111 | ||
1112 | return p >= specpdl; | |
1113 | } | |
1114 | ||
25638b07 | 1115 | /* Store the value NEWVAL into SYMBOL. |
94b612ad SM |
1116 | If buffer/frame-locality is an issue, WHERE specifies which context to use. |
1117 | (nil stands for the current buffer/frame). | |
2829d05f | 1118 | |
05ef7169 RS |
1119 | If BINDFLAG is zero, then if this symbol is supposed to become |
1120 | local in every buffer where it is set, then we make it local. | |
1121 | If BINDFLAG is nonzero, we don't do that. */ | |
1122 | ||
ce5b453a | 1123 | void |
971de7fb | 1124 | set_internal (register Lisp_Object symbol, register Lisp_Object newval, register Lisp_Object where, int bindflag) |
7921925c | 1125 | { |
1bfcade3 | 1126 | int voide = EQ (newval, Qunbound); |
ce5b453a SM |
1127 | struct Lisp_Symbol *sym; |
1128 | Lisp_Object tem1; | |
7921925c | 1129 | |
2829d05f | 1130 | /* If restoring in a dead buffer, do nothing. */ |
94b612ad SM |
1131 | /* if (BUFFERP (where) && NILP (XBUFFER (where)->name)) |
1132 | return; */ | |
2829d05f | 1133 | |
b7826503 | 1134 | CHECK_SYMBOL (symbol); |
ce5b453a | 1135 | if (SYMBOL_CONSTANT_P (symbol)) |
7921925c | 1136 | { |
ce5b453a SM |
1137 | if (NILP (Fkeywordp (symbol)) |
1138 | || !EQ (newval, Fsymbol_value (symbol))) | |
1139 | xsignal1 (Qsetting_constant, symbol); | |
1140 | else | |
1141 | /* Allow setting keywords to their own value. */ | |
1142 | return; | |
7921925c | 1143 | } |
42e975f0 | 1144 | |
ce5b453a | 1145 | sym = XSYMBOL (symbol); |
7921925c | 1146 | |
ce5b453a SM |
1147 | start: |
1148 | switch (sym->redirect) | |
1149 | { | |
1150 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
1151 | case SYMBOL_PLAINVAL: SET_SYMBOL_VAL (sym , newval); return; | |
1152 | case SYMBOL_LOCALIZED: | |
1153 | { | |
1154 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
94b612ad SM |
1155 | if (NILP (where)) |
1156 | { | |
1157 | if (blv->frame_local) | |
1158 | where = selected_frame; | |
1159 | else | |
1160 | XSETBUFFER (where, current_buffer); | |
1161 | } | |
ce5b453a SM |
1162 | /* If the current buffer is not the buffer whose binding is |
1163 | loaded, or if there may be frame-local bindings and the frame | |
1164 | isn't the right one, or if it's a Lisp_Buffer_Local_Value and | |
1165 | the default binding is loaded, the loaded binding may be the | |
1166 | wrong one. */ | |
94b612ad | 1167 | if (!EQ (blv->where, where) |
ce5b453a SM |
1168 | /* Also unload a global binding (if the var is local_if_set). */ |
1169 | || (EQ (blv->valcell, blv->defcell))) | |
1170 | { | |
1171 | /* The currently loaded binding is not necessarily valid. | |
1172 | We need to unload it, and choose a new binding. */ | |
1173 | ||
1174 | /* Write out `realvalue' to the old loaded binding. */ | |
1175 | if (blv->fwd) | |
1176 | SET_BLV_VALUE (blv, do_symval_forwarding (blv->fwd)); | |
b0c2d1c6 | 1177 | |
ce5b453a | 1178 | /* Find the new binding. */ |
94b612ad SM |
1179 | XSETSYMBOL (symbol, sym); /* May have changed via aliasing. */ |
1180 | tem1 = Fassq (symbol, | |
1181 | (blv->frame_local | |
1182 | ? XFRAME (where)->param_alist | |
4b4deea2 | 1183 | : BVAR (XBUFFER (where), local_var_alist))); |
94b612ad | 1184 | blv->where = where; |
ce5b453a SM |
1185 | blv->found = 1; |
1186 | ||
1187 | if (NILP (tem1)) | |
1188 | { | |
1189 | /* This buffer still sees the default value. */ | |
1190 | ||
1191 | /* If the variable is a Lisp_Some_Buffer_Local_Value, | |
1192 | or if this is `let' rather than `set', | |
1193 | make CURRENT-ALIST-ELEMENT point to itself, | |
1194 | indicating that we're seeing the default value. | |
1195 | Likewise if the variable has been let-bound | |
1196 | in the current buffer. */ | |
1197 | if (bindflag || !blv->local_if_set | |
1198 | || let_shadows_buffer_binding_p (sym)) | |
1199 | { | |
1200 | blv->found = 0; | |
1201 | tem1 = blv->defcell; | |
1202 | } | |
1203 | /* If it's a local_if_set, being set not bound, | |
1204 | and we're not within a let that was made for this buffer, | |
1205 | create a new buffer-local binding for the variable. | |
1206 | That means, give this buffer a new assoc for a local value | |
1207 | and load that binding. */ | |
1208 | else | |
1209 | { | |
1210 | /* local_if_set is only supported for buffer-local | |
1211 | bindings, not for frame-local bindings. */ | |
1212 | eassert (!blv->frame_local); | |
1213 | tem1 = Fcons (symbol, XCDR (blv->defcell)); | |
4b4deea2 TT |
1214 | BVAR (XBUFFER (where), local_var_alist) |
1215 | = Fcons (tem1, BVAR (XBUFFER (where), local_var_alist)); | |
ce5b453a SM |
1216 | } |
1217 | } | |
1218 | ||
1219 | /* Record which binding is now loaded. */ | |
1220 | blv->valcell = tem1; | |
1221 | } | |
b0c2d1c6 | 1222 | |
ce5b453a SM |
1223 | /* Store the new value in the cons cell. */ |
1224 | SET_BLV_VALUE (blv, newval); | |
d8cafeb5 | 1225 | |
ce5b453a SM |
1226 | if (blv->fwd) |
1227 | { | |
1228 | if (voide) | |
1229 | /* If storing void (making the symbol void), forward only through | |
1230 | buffer-local indicator, not through Lisp_Objfwd, etc. */ | |
1231 | blv->fwd = NULL; | |
1232 | else | |
94b612ad SM |
1233 | store_symval_forwarding (blv->fwd, newval, |
1234 | BUFFERP (where) | |
1235 | ? XBUFFER (where) : current_buffer); | |
ce5b453a SM |
1236 | } |
1237 | break; | |
1238 | } | |
1239 | case SYMBOL_FORWARDED: | |
1240 | { | |
94b612ad SM |
1241 | struct buffer *buf |
1242 | = BUFFERP (where) ? XBUFFER (where) : current_buffer; | |
ce5b453a SM |
1243 | union Lisp_Fwd *innercontents = SYMBOL_FWD (sym); |
1244 | if (BUFFER_OBJFWDP (innercontents)) | |
1245 | { | |
1246 | int offset = XBUFFER_OBJFWD (innercontents)->offset; | |
1247 | int idx = PER_BUFFER_IDX (offset); | |
1248 | if (idx > 0 | |
1249 | && !bindflag | |
1250 | && !let_shadows_buffer_binding_p (sym)) | |
1251 | SET_PER_BUFFER_VALUE_P (buf, idx, 1); | |
1252 | } | |
569c11e3 | 1253 | |
ce5b453a SM |
1254 | if (voide) |
1255 | { /* If storing void (making the symbol void), forward only through | |
1256 | buffer-local indicator, not through Lisp_Objfwd, etc. */ | |
1257 | sym->redirect = SYMBOL_PLAINVAL; | |
1258 | SET_SYMBOL_VAL (sym, newval); | |
1259 | } | |
1260 | else | |
1261 | store_symval_forwarding (/* sym, */ innercontents, newval, buf); | |
1262 | break; | |
1263 | } | |
1264 | default: abort (); | |
7921925c | 1265 | } |
ce5b453a | 1266 | return; |
7921925c JB |
1267 | } |
1268 | \f | |
1269 | /* Access or set a buffer-local symbol's default value. */ | |
1270 | ||
d9c2a0f2 | 1271 | /* Return the default value of SYMBOL, but don't check for voidness. |
1bfcade3 | 1272 | Return Qunbound if it is void. */ |
7921925c JB |
1273 | |
1274 | Lisp_Object | |
971de7fb | 1275 | default_value (Lisp_Object symbol) |
7921925c | 1276 | { |
ce5b453a | 1277 | struct Lisp_Symbol *sym; |
7921925c | 1278 | |
b7826503 | 1279 | CHECK_SYMBOL (symbol); |
ce5b453a | 1280 | sym = XSYMBOL (symbol); |
7921925c | 1281 | |
ce5b453a SM |
1282 | start: |
1283 | switch (sym->redirect) | |
7921925c | 1284 | { |
ce5b453a SM |
1285 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1286 | case SYMBOL_PLAINVAL: return SYMBOL_VAL (sym); | |
1287 | case SYMBOL_LOCALIZED: | |
1288 | { | |
1289 | /* If var is set up for a buffer that lacks a local value for it, | |
1290 | the current value is nominally the default value. | |
1291 | But the `realvalue' slot may be more up to date, since | |
1292 | ordinary setq stores just that slot. So use that. */ | |
1293 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
1294 | if (blv->fwd && EQ (blv->valcell, blv->defcell)) | |
1295 | return do_symval_forwarding (blv->fwd); | |
1296 | else | |
1297 | return XCDR (blv->defcell); | |
1298 | } | |
1299 | case SYMBOL_FORWARDED: | |
1300 | { | |
1301 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
7921925c | 1302 | |
ce5b453a SM |
1303 | /* For a built-in buffer-local variable, get the default value |
1304 | rather than letting do_symval_forwarding get the current value. */ | |
1305 | if (BUFFER_OBJFWDP (valcontents)) | |
1306 | { | |
1307 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
1308 | if (PER_BUFFER_IDX (offset) != 0) | |
1309 | return PER_BUFFER_DEFAULT (offset); | |
1310 | } | |
1311 | ||
1312 | /* For other variables, get the current value. */ | |
1313 | return do_symval_forwarding (valcontents); | |
1314 | } | |
1315 | default: abort (); | |
7921925c | 1316 | } |
7921925c JB |
1317 | } |
1318 | ||
1319 | DEFUN ("default-boundp", Fdefault_boundp, Sdefault_boundp, 1, 1, 0, | |
8c1a1077 PJ |
1320 | doc: /* Return t if SYMBOL has a non-void default value. |
1321 | This is the value that is seen in buffers that do not have their own values | |
1322 | for this variable. */) | |
5842a27b | 1323 | (Lisp_Object symbol) |
7921925c JB |
1324 | { |
1325 | register Lisp_Object value; | |
1326 | ||
d9c2a0f2 | 1327 | value = default_value (symbol); |
1bfcade3 | 1328 | return (EQ (value, Qunbound) ? Qnil : Qt); |
7921925c JB |
1329 | } |
1330 | ||
1331 | DEFUN ("default-value", Fdefault_value, Sdefault_value, 1, 1, 0, | |
8c1a1077 PJ |
1332 | doc: /* Return SYMBOL's default value. |
1333 | This is the value that is seen in buffers that do not have their own values | |
1334 | for this variable. The default value is meaningful for variables with | |
1335 | local bindings in certain buffers. */) | |
5842a27b | 1336 | (Lisp_Object symbol) |
7921925c JB |
1337 | { |
1338 | register Lisp_Object value; | |
1339 | ||
d9c2a0f2 | 1340 | value = default_value (symbol); |
740ef0b5 KS |
1341 | if (!EQ (value, Qunbound)) |
1342 | return value; | |
1343 | ||
1344 | xsignal1 (Qvoid_variable, symbol); | |
7921925c JB |
1345 | } |
1346 | ||
1347 | DEFUN ("set-default", Fset_default, Sset_default, 2, 2, 0, | |
6e86a75d | 1348 | doc: /* Set SYMBOL's default value to VALUE. SYMBOL and VALUE are evaluated. |
8c1a1077 PJ |
1349 | The default value is seen in buffers that do not have their own values |
1350 | for this variable. */) | |
5842a27b | 1351 | (Lisp_Object symbol, Lisp_Object value) |
7921925c | 1352 | { |
ce5b453a | 1353 | struct Lisp_Symbol *sym; |
7921925c | 1354 | |
b7826503 | 1355 | CHECK_SYMBOL (symbol); |
ce5b453a | 1356 | if (SYMBOL_CONSTANT_P (symbol)) |
7921925c | 1357 | { |
ce5b453a SM |
1358 | if (NILP (Fkeywordp (symbol)) |
1359 | || !EQ (value, Fdefault_value (symbol))) | |
1360 | xsignal1 (Qsetting_constant, symbol); | |
1361 | else | |
1362 | /* Allow setting keywords to their own value. */ | |
1363 | return value; | |
1364 | } | |
1365 | sym = XSYMBOL (symbol); | |
7921925c | 1366 | |
ce5b453a SM |
1367 | start: |
1368 | switch (sym->redirect) | |
1369 | { | |
1370 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
1371 | case SYMBOL_PLAINVAL: return Fset (symbol, value); | |
1372 | case SYMBOL_LOCALIZED: | |
1373 | { | |
1374 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
984ef137 | 1375 | |
ce5b453a SM |
1376 | /* Store new value into the DEFAULT-VALUE slot. */ |
1377 | XSETCDR (blv->defcell, value); | |
bfb96cb7 | 1378 | |
ce5b453a SM |
1379 | /* If the default binding is now loaded, set the REALVALUE slot too. */ |
1380 | if (blv->fwd && EQ (blv->defcell, blv->valcell)) | |
1381 | store_symval_forwarding (blv->fwd, value, NULL); | |
1382 | return value; | |
1383 | } | |
1384 | case SYMBOL_FORWARDED: | |
1385 | { | |
1386 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
7921925c | 1387 | |
ce5b453a SM |
1388 | /* Handle variables like case-fold-search that have special slots |
1389 | in the buffer. | |
1390 | Make them work apparently like Lisp_Buffer_Local_Value variables. */ | |
1391 | if (BUFFER_OBJFWDP (valcontents)) | |
1392 | { | |
1393 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
1394 | int idx = PER_BUFFER_IDX (offset); | |
7921925c | 1395 | |
ce5b453a | 1396 | PER_BUFFER_DEFAULT (offset) = value; |
7921925c | 1397 | |
ce5b453a SM |
1398 | /* If this variable is not always local in all buffers, |
1399 | set it in the buffers that don't nominally have a local value. */ | |
1400 | if (idx > 0) | |
1401 | { | |
1402 | struct buffer *b; | |
7921925c | 1403 | |
ce5b453a SM |
1404 | for (b = all_buffers; b; b = b->next) |
1405 | if (!PER_BUFFER_VALUE_P (b, idx)) | |
1406 | PER_BUFFER_VALUE (b, offset) = value; | |
1407 | } | |
1408 | return value; | |
1409 | } | |
1410 | else | |
1411 | return Fset (symbol, value); | |
1412 | } | |
1413 | default: abort (); | |
1414 | } | |
7921925c JB |
1415 | } |
1416 | ||
7a7df7ac | 1417 | DEFUN ("setq-default", Fsetq_default, Ssetq_default, 0, UNEVALLED, 0, |
8c1a1077 PJ |
1418 | doc: /* Set the default value of variable VAR to VALUE. |
1419 | VAR, the variable name, is literal (not evaluated); | |
bfb96cb7 | 1420 | VALUE is an expression: it is evaluated and its value returned. |
8c1a1077 PJ |
1421 | The default value of a variable is seen in buffers |
1422 | that do not have their own values for the variable. | |
1423 | ||
1424 | More generally, you can use multiple variables and values, as in | |
948d2995 JB |
1425 | (setq-default VAR VALUE VAR VALUE...) |
1426 | This sets each VAR's default value to the corresponding VALUE. | |
1427 | The VALUE for the Nth VAR can refer to the new default values | |
1428 | of previous VARs. | |
70e9f399 | 1429 | usage: (setq-default [VAR VALUE]...) */) |
5842a27b | 1430 | (Lisp_Object args) |
7921925c JB |
1431 | { |
1432 | register Lisp_Object args_left; | |
d9c2a0f2 | 1433 | register Lisp_Object val, symbol; |
7921925c JB |
1434 | struct gcpro gcpro1; |
1435 | ||
a33ef3ab | 1436 | if (NILP (args)) |
7921925c JB |
1437 | return Qnil; |
1438 | ||
1439 | args_left = args; | |
1440 | GCPRO1 (args); | |
1441 | ||
1442 | do | |
1443 | { | |
defb1411 | 1444 | val = eval_sub (Fcar (Fcdr (args_left))); |
d2fde41d | 1445 | symbol = XCAR (args_left); |
d9c2a0f2 | 1446 | Fset_default (symbol, val); |
d2fde41d | 1447 | args_left = Fcdr (XCDR (args_left)); |
7921925c | 1448 | } |
a33ef3ab | 1449 | while (!NILP (args_left)); |
7921925c JB |
1450 | |
1451 | UNGCPRO; | |
1452 | return val; | |
1453 | } | |
1454 | \f | |
a5ca2b75 JB |
1455 | /* Lisp functions for creating and removing buffer-local variables. */ |
1456 | ||
ce5b453a SM |
1457 | union Lisp_Val_Fwd |
1458 | { | |
1459 | Lisp_Object value; | |
1460 | union Lisp_Fwd *fwd; | |
1461 | }; | |
1462 | ||
1463 | static struct Lisp_Buffer_Local_Value * | |
1464 | make_blv (struct Lisp_Symbol *sym, int forwarded, union Lisp_Val_Fwd valcontents) | |
1465 | { | |
1466 | struct Lisp_Buffer_Local_Value *blv | |
1467 | = xmalloc (sizeof (struct Lisp_Buffer_Local_Value)); | |
c632dfda JD |
1468 | Lisp_Object symbol; |
1469 | Lisp_Object tem; | |
1470 | ||
1471 | XSETSYMBOL (symbol, sym); | |
1472 | tem = Fcons (symbol, (forwarded | |
1473 | ? do_symval_forwarding (valcontents.fwd) | |
1474 | : valcontents.value)); | |
1475 | ||
ce5b453a SM |
1476 | /* Buffer_Local_Values cannot have as realval a buffer-local |
1477 | or keyboard-local forwarding. */ | |
1478 | eassert (!(forwarded && BUFFER_OBJFWDP (valcontents.fwd))); | |
1479 | eassert (!(forwarded && KBOARD_OBJFWDP (valcontents.fwd))); | |
1480 | blv->fwd = forwarded ? valcontents.fwd : NULL; | |
1481 | blv->where = Qnil; | |
1482 | blv->frame_local = 0; | |
1483 | blv->local_if_set = 0; | |
1484 | blv->defcell = tem; | |
1485 | blv->valcell = tem; | |
1486 | SET_BLV_FOUND (blv, 0); | |
1487 | return blv; | |
1488 | } | |
1489 | ||
7921925c | 1490 | DEFUN ("make-variable-buffer-local", Fmake_variable_buffer_local, Smake_variable_buffer_local, |
8c1a1077 PJ |
1491 | 1, 1, "vMake Variable Buffer Local: ", |
1492 | doc: /* Make VARIABLE become buffer-local whenever it is set. | |
1493 | At any time, the value for the current buffer is in effect, | |
1494 | unless the variable has never been set in this buffer, | |
1495 | in which case the default value is in effect. | |
1496 | Note that binding the variable with `let', or setting it while | |
1497 | a `let'-style binding made in this buffer is in effect, | |
bfb96cb7 | 1498 | does not make the variable buffer-local. Return VARIABLE. |
8c1a1077 | 1499 | |
a9908653 RS |
1500 | In most cases it is better to use `make-local-variable', |
1501 | which makes a variable local in just one buffer. | |
1502 | ||
8c1a1077 | 1503 | The function `default-value' gets the default value and `set-default' sets it. */) |
5842a27b | 1504 | (register Lisp_Object variable) |
7921925c | 1505 | { |
ad97b375 | 1506 | struct Lisp_Symbol *sym; |
ce5b453a SM |
1507 | struct Lisp_Buffer_Local_Value *blv = NULL; |
1508 | union Lisp_Val_Fwd valcontents; | |
1509 | int forwarded; | |
7921925c | 1510 | |
b7826503 | 1511 | CHECK_SYMBOL (variable); |
ce5b453a | 1512 | sym = XSYMBOL (variable); |
7921925c | 1513 | |
ce5b453a SM |
1514 | start: |
1515 | switch (sym->redirect) | |
fd9440c5 | 1516 | { |
ce5b453a SM |
1517 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1518 | case SYMBOL_PLAINVAL: | |
1519 | forwarded = 0; valcontents.value = SYMBOL_VAL (sym); | |
1520 | if (EQ (valcontents.value, Qunbound)) | |
1521 | valcontents.value = Qnil; | |
1522 | break; | |
1523 | case SYMBOL_LOCALIZED: | |
1524 | blv = SYMBOL_BLV (sym); | |
1525 | if (blv->frame_local) | |
1526 | error ("Symbol %s may not be buffer-local", | |
1527 | SDATA (SYMBOL_NAME (variable))); | |
1528 | break; | |
1529 | case SYMBOL_FORWARDED: | |
1530 | forwarded = 1; valcontents.fwd = SYMBOL_FWD (sym); | |
1531 | if (KBOARD_OBJFWDP (valcontents.fwd)) | |
1532 | error ("Symbol %s may not be buffer-local", | |
1533 | SDATA (SYMBOL_NAME (variable))); | |
1534 | else if (BUFFER_OBJFWDP (valcontents.fwd)) | |
1535 | return variable; | |
1536 | break; | |
1537 | default: abort (); | |
fd9440c5 | 1538 | } |
ce5b453a SM |
1539 | |
1540 | if (sym->constant) | |
1541 | error ("Symbol %s may not be buffer-local", SDATA (SYMBOL_NAME (variable))); | |
1542 | ||
1543 | if (!blv) | |
7921925c | 1544 | { |
ce5b453a SM |
1545 | blv = make_blv (sym, forwarded, valcontents); |
1546 | sym->redirect = SYMBOL_LOCALIZED; | |
1547 | SET_SYMBOL_BLV (sym, blv); | |
1548 | { | |
1549 | Lisp_Object symbol; | |
1550 | XSETSYMBOL (symbol, sym); /* In case `variable' is aliased. */ | |
1551 | if (let_shadows_global_binding_p (symbol)) | |
8b1e1112 SM |
1552 | message ("Making %s buffer-local while let-bound!", |
1553 | SDATA (SYMBOL_NAME (variable))); | |
ce5b453a | 1554 | } |
7921925c | 1555 | } |
ce5b453a SM |
1556 | |
1557 | blv->local_if_set = 1; | |
d9c2a0f2 | 1558 | return variable; |
7921925c JB |
1559 | } |
1560 | ||
1561 | DEFUN ("make-local-variable", Fmake_local_variable, Smake_local_variable, | |
8c1a1077 PJ |
1562 | 1, 1, "vMake Local Variable: ", |
1563 | doc: /* Make VARIABLE have a separate value in the current buffer. | |
1564 | Other buffers will continue to share a common default value. | |
1565 | \(The buffer-local value of VARIABLE starts out as the same value | |
1566 | VARIABLE previously had. If VARIABLE was void, it remains void.\) | |
a9908653 | 1567 | Return VARIABLE. |
8c1a1077 PJ |
1568 | |
1569 | If the variable is already arranged to become local when set, | |
1570 | this function causes a local value to exist for this buffer, | |
1571 | just as setting the variable would do. | |
1572 | ||
1573 | This function returns VARIABLE, and therefore | |
1574 | (set (make-local-variable 'VARIABLE) VALUE-EXP) | |
1575 | works. | |
1576 | ||
a9908653 RS |
1577 | See also `make-variable-buffer-local'. |
1578 | ||
8c1a1077 | 1579 | Do not use `make-local-variable' to make a hook variable buffer-local. |
515f3f25 | 1580 | Instead, use `add-hook' and specify t for the LOCAL argument. */) |
5842a27b | 1581 | (register Lisp_Object variable) |
7921925c | 1582 | { |
ce5b453a SM |
1583 | register Lisp_Object tem; |
1584 | int forwarded; | |
1585 | union Lisp_Val_Fwd valcontents; | |
ad97b375 | 1586 | struct Lisp_Symbol *sym; |
ce5b453a | 1587 | struct Lisp_Buffer_Local_Value *blv = NULL; |
7921925c | 1588 | |
b7826503 | 1589 | CHECK_SYMBOL (variable); |
ce5b453a | 1590 | sym = XSYMBOL (variable); |
7921925c | 1591 | |
ce5b453a SM |
1592 | start: |
1593 | switch (sym->redirect) | |
1594 | { | |
1595 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
1596 | case SYMBOL_PLAINVAL: | |
1597 | forwarded = 0; valcontents.value = SYMBOL_VAL (sym); break; | |
1598 | case SYMBOL_LOCALIZED: | |
1599 | blv = SYMBOL_BLV (sym); | |
1600 | if (blv->frame_local) | |
1601 | error ("Symbol %s may not be buffer-local", | |
1602 | SDATA (SYMBOL_NAME (variable))); | |
1603 | break; | |
1604 | case SYMBOL_FORWARDED: | |
1605 | forwarded = 1; valcontents.fwd = SYMBOL_FWD (sym); | |
1606 | if (KBOARD_OBJFWDP (valcontents.fwd)) | |
1607 | error ("Symbol %s may not be buffer-local", | |
1608 | SDATA (SYMBOL_NAME (variable))); | |
1609 | break; | |
1610 | default: abort (); | |
1611 | } | |
1612 | ||
1613 | if (sym->constant) | |
8b1e1112 SM |
1614 | error ("Symbol %s may not be buffer-local", |
1615 | SDATA (SYMBOL_NAME (variable))); | |
7921925c | 1616 | |
ce5b453a SM |
1617 | if (blv ? blv->local_if_set |
1618 | : (forwarded && BUFFER_OBJFWDP (valcontents.fwd))) | |
7921925c | 1619 | { |
d9c2a0f2 | 1620 | tem = Fboundp (variable); |
7921925c JB |
1621 | /* Make sure the symbol has a local value in this particular buffer, |
1622 | by setting it to the same value it already has. */ | |
d9c2a0f2 EN |
1623 | Fset (variable, (EQ (tem, Qt) ? Fsymbol_value (variable) : Qunbound)); |
1624 | return variable; | |
7921925c | 1625 | } |
ce5b453a | 1626 | if (!blv) |
7921925c | 1627 | { |
ce5b453a SM |
1628 | blv = make_blv (sym, forwarded, valcontents); |
1629 | sym->redirect = SYMBOL_LOCALIZED; | |
1630 | SET_SYMBOL_BLV (sym, blv); | |
1631 | { | |
1632 | Lisp_Object symbol; | |
1633 | XSETSYMBOL (symbol, sym); /* In case `variable' is aliased. */ | |
1634 | if (let_shadows_global_binding_p (symbol)) | |
8b1e1112 SM |
1635 | message ("Making %s local to %s while let-bound!", |
1636 | SDATA (SYMBOL_NAME (variable)), | |
4b4deea2 | 1637 | SDATA (BVAR (current_buffer, name))); |
ce5b453a | 1638 | } |
7921925c | 1639 | } |
ce5b453a | 1640 | |
42e975f0 | 1641 | /* Make sure this buffer has its own value of symbol. */ |
ce5b453a | 1642 | XSETSYMBOL (variable, sym); /* Update in case of aliasing. */ |
4b4deea2 | 1643 | tem = Fassq (variable, BVAR (current_buffer, local_var_alist)); |
a33ef3ab | 1644 | if (NILP (tem)) |
7921925c | 1645 | { |
ce5b453a SM |
1646 | if (let_shadows_buffer_binding_p (sym)) |
1647 | message ("Making %s buffer-local while locally let-bound!", | |
1648 | SDATA (SYMBOL_NAME (variable))); | |
1649 | ||
a5d004a1 RS |
1650 | /* Swap out any local binding for some other buffer, and make |
1651 | sure the current value is permanently recorded, if it's the | |
1652 | default value. */ | |
d9c2a0f2 | 1653 | find_symbol_value (variable); |
a5d004a1 | 1654 | |
4b4deea2 | 1655 | BVAR (current_buffer, local_var_alist) |
ce5b453a | 1656 | = Fcons (Fcons (variable, XCDR (blv->defcell)), |
4b4deea2 | 1657 | BVAR (current_buffer, local_var_alist)); |
7921925c JB |
1658 | |
1659 | /* Make sure symbol does not think it is set up for this buffer; | |
42e975f0 | 1660 | force it to look once again for this buffer's value. */ |
ce5b453a SM |
1661 | if (current_buffer == XBUFFER (blv->where)) |
1662 | blv->where = Qnil; | |
1663 | /* blv->valcell = blv->defcell; | |
1664 | * SET_BLV_FOUND (blv, 0); */ | |
1665 | blv->found = 0; | |
7921925c | 1666 | } |
a5ca2b75 | 1667 | |
42e975f0 RS |
1668 | /* If the symbol forwards into a C variable, then load the binding |
1669 | for this buffer now. If C code modifies the variable before we | |
1670 | load the binding in, then that new value will clobber the default | |
1671 | binding the next time we unload it. */ | |
ce5b453a SM |
1672 | if (blv->fwd) |
1673 | swap_in_symval_forwarding (sym, blv); | |
a5ca2b75 | 1674 | |
d9c2a0f2 | 1675 | return variable; |
7921925c JB |
1676 | } |
1677 | ||
1678 | DEFUN ("kill-local-variable", Fkill_local_variable, Skill_local_variable, | |
8c1a1077 PJ |
1679 | 1, 1, "vKill Local Variable: ", |
1680 | doc: /* Make VARIABLE no longer have a separate value in the current buffer. | |
bfb96cb7 | 1681 | From now on the default value will apply in this buffer. Return VARIABLE. */) |
5842a27b | 1682 | (register Lisp_Object variable) |
7921925c | 1683 | { |
ce5b453a SM |
1684 | register Lisp_Object tem; |
1685 | struct Lisp_Buffer_Local_Value *blv; | |
ad97b375 | 1686 | struct Lisp_Symbol *sym; |
7921925c | 1687 | |
b7826503 | 1688 | CHECK_SYMBOL (variable); |
ce5b453a | 1689 | sym = XSYMBOL (variable); |
7921925c | 1690 | |
ce5b453a SM |
1691 | start: |
1692 | switch (sym->redirect) | |
7921925c | 1693 | { |
ce5b453a SM |
1694 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1695 | case SYMBOL_PLAINVAL: return variable; | |
1696 | case SYMBOL_FORWARDED: | |
1697 | { | |
1698 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
1699 | if (BUFFER_OBJFWDP (valcontents)) | |
1700 | { | |
1701 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
1702 | int idx = PER_BUFFER_IDX (offset); | |
1703 | ||
1704 | if (idx > 0) | |
1705 | { | |
1706 | SET_PER_BUFFER_VALUE_P (current_buffer, idx, 0); | |
1707 | PER_BUFFER_VALUE (current_buffer, offset) | |
1708 | = PER_BUFFER_DEFAULT (offset); | |
1709 | } | |
1710 | } | |
1711 | return variable; | |
1712 | } | |
1713 | case SYMBOL_LOCALIZED: | |
1714 | blv = SYMBOL_BLV (sym); | |
1715 | if (blv->frame_local) | |
1716 | return variable; | |
1717 | break; | |
1718 | default: abort (); | |
7921925c JB |
1719 | } |
1720 | ||
42e975f0 | 1721 | /* Get rid of this buffer's alist element, if any. */ |
ad97b375 | 1722 | XSETSYMBOL (variable, sym); /* Propagate variable indirection. */ |
4b4deea2 | 1723 | tem = Fassq (variable, BVAR (current_buffer, local_var_alist)); |
a33ef3ab | 1724 | if (!NILP (tem)) |
4b4deea2 TT |
1725 | BVAR (current_buffer, local_var_alist) |
1726 | = Fdelq (tem, BVAR (current_buffer, local_var_alist)); | |
7921925c | 1727 | |
42e975f0 RS |
1728 | /* If the symbol is set up with the current buffer's binding |
1729 | loaded, recompute its value. We have to do it now, or else | |
1730 | forwarded objects won't work right. */ | |
7921925c | 1731 | { |
ce5b453a SM |
1732 | Lisp_Object buf; XSETBUFFER (buf, current_buffer); |
1733 | if (EQ (buf, blv->where)) | |
79c83e03 | 1734 | { |
ce5b453a SM |
1735 | blv->where = Qnil; |
1736 | /* blv->valcell = blv->defcell; | |
1737 | * SET_BLV_FOUND (blv, 0); */ | |
1738 | blv->found = 0; | |
978dd578 | 1739 | find_symbol_value (variable); |
79c83e03 | 1740 | } |
7921925c JB |
1741 | } |
1742 | ||
d9c2a0f2 | 1743 | return variable; |
7921925c | 1744 | } |
62476adc | 1745 | |
b0c2d1c6 RS |
1746 | /* Lisp functions for creating and removing buffer-local variables. */ |
1747 | ||
ab795c65 GM |
1748 | /* Obsolete since 22.2. NB adjust doc of modify-frame-parameters |
1749 | when/if this is removed. */ | |
1750 | ||
b0c2d1c6 | 1751 | DEFUN ("make-variable-frame-local", Fmake_variable_frame_local, Smake_variable_frame_local, |
8c1a1077 PJ |
1752 | 1, 1, "vMake Variable Frame Local: ", |
1753 | doc: /* Enable VARIABLE to have frame-local bindings. | |
4d4d36b1 RS |
1754 | This does not create any frame-local bindings for VARIABLE, |
1755 | it just makes them possible. | |
1756 | ||
1757 | A frame-local binding is actually a frame parameter value. | |
1758 | If a frame F has a value for the frame parameter named VARIABLE, | |
1759 | that also acts as a frame-local binding for VARIABLE in F-- | |
1760 | provided this function has been called to enable VARIABLE | |
1761 | to have frame-local bindings at all. | |
1762 | ||
1763 | The only way to create a frame-local binding for VARIABLE in a frame | |
1764 | is to set the VARIABLE frame parameter of that frame. See | |
1765 | `modify-frame-parameters' for how to set frame parameters. | |
1766 | ||
a02a1384 GM |
1767 | Note that since Emacs 23.1, variables cannot be both buffer-local and |
1768 | frame-local any more (buffer-local bindings used to take precedence over | |
1769 | frame-local bindings). */) | |
5842a27b | 1770 | (register Lisp_Object variable) |
b0c2d1c6 | 1771 | { |
ce5b453a SM |
1772 | int forwarded; |
1773 | union Lisp_Val_Fwd valcontents; | |
ad97b375 | 1774 | struct Lisp_Symbol *sym; |
ce5b453a | 1775 | struct Lisp_Buffer_Local_Value *blv = NULL; |
b0c2d1c6 | 1776 | |
b7826503 | 1777 | CHECK_SYMBOL (variable); |
ce5b453a | 1778 | sym = XSYMBOL (variable); |
b0c2d1c6 | 1779 | |
ce5b453a SM |
1780 | start: |
1781 | switch (sym->redirect) | |
42e975f0 | 1782 | { |
ce5b453a SM |
1783 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1784 | case SYMBOL_PLAINVAL: | |
1785 | forwarded = 0; valcontents.value = SYMBOL_VAL (sym); | |
1786 | if (EQ (valcontents.value, Qunbound)) | |
1787 | valcontents.value = Qnil; | |
1788 | break; | |
1789 | case SYMBOL_LOCALIZED: | |
1790 | if (SYMBOL_BLV (sym)->frame_local) | |
1791 | return variable; | |
1792 | else | |
1793 | error ("Symbol %s may not be frame-local", | |
1794 | SDATA (SYMBOL_NAME (variable))); | |
1795 | case SYMBOL_FORWARDED: | |
1796 | forwarded = 1; valcontents.fwd = SYMBOL_FWD (sym); | |
1797 | if (KBOARD_OBJFWDP (valcontents.fwd) || BUFFER_OBJFWDP (valcontents.fwd)) | |
1798 | error ("Symbol %s may not be frame-local", | |
1799 | SDATA (SYMBOL_NAME (variable))); | |
1800 | break; | |
1801 | default: abort (); | |
42e975f0 | 1802 | } |
b0c2d1c6 | 1803 | |
ce5b453a SM |
1804 | if (sym->constant) |
1805 | error ("Symbol %s may not be frame-local", SDATA (SYMBOL_NAME (variable))); | |
1806 | ||
1807 | blv = make_blv (sym, forwarded, valcontents); | |
1808 | blv->frame_local = 1; | |
1809 | sym->redirect = SYMBOL_LOCALIZED; | |
1810 | SET_SYMBOL_BLV (sym, blv); | |
8b1e1112 SM |
1811 | { |
1812 | Lisp_Object symbol; | |
1813 | XSETSYMBOL (symbol, sym); /* In case `variable' is aliased. */ | |
1814 | if (let_shadows_global_binding_p (symbol)) | |
1815 | message ("Making %s frame-local while let-bound!", | |
1816 | SDATA (SYMBOL_NAME (variable))); | |
1817 | } | |
b0c2d1c6 RS |
1818 | return variable; |
1819 | } | |
1820 | ||
62476adc | 1821 | DEFUN ("local-variable-p", Flocal_variable_p, Slocal_variable_p, |
8c1a1077 PJ |
1822 | 1, 2, 0, |
1823 | doc: /* Non-nil if VARIABLE has a local binding in buffer BUFFER. | |
1824 | BUFFER defaults to the current buffer. */) | |
5842a27b | 1825 | (register Lisp_Object variable, Lisp_Object buffer) |
62476adc | 1826 | { |
c48ead86 | 1827 | register struct buffer *buf; |
ad97b375 | 1828 | struct Lisp_Symbol *sym; |
c48ead86 KH |
1829 | |
1830 | if (NILP (buffer)) | |
1831 | buf = current_buffer; | |
1832 | else | |
1833 | { | |
b7826503 | 1834 | CHECK_BUFFER (buffer); |
c48ead86 KH |
1835 | buf = XBUFFER (buffer); |
1836 | } | |
62476adc | 1837 | |
b7826503 | 1838 | CHECK_SYMBOL (variable); |
ce5b453a | 1839 | sym = XSYMBOL (variable); |
be95bee9 | 1840 | |
ce5b453a SM |
1841 | start: |
1842 | switch (sym->redirect) | |
c48ead86 | 1843 | { |
ce5b453a SM |
1844 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1845 | case SYMBOL_PLAINVAL: return Qnil; | |
1846 | case SYMBOL_LOCALIZED: | |
1847 | { | |
1848 | Lisp_Object tail, elt, tmp; | |
1849 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
1850 | XSETBUFFER (tmp, buf); | |
8d1d9587 | 1851 | XSETSYMBOL (variable, sym); /* Update in case of aliasing. */ |
aa3830c4 | 1852 | |
4b4deea2 | 1853 | for (tail = BVAR (buf, local_var_alist); CONSP (tail); tail = XCDR (tail)) |
ce5b453a SM |
1854 | { |
1855 | elt = XCAR (tail); | |
1856 | if (EQ (variable, XCAR (elt))) | |
1857 | { | |
1858 | eassert (!blv->frame_local); | |
1859 | eassert (BLV_FOUND (blv) || !EQ (blv->where, tmp)); | |
1860 | return Qt; | |
1861 | } | |
1862 | } | |
1863 | eassert (!BLV_FOUND (blv) || !EQ (blv->where, tmp)); | |
1864 | return Qnil; | |
1865 | } | |
1866 | case SYMBOL_FORWARDED: | |
1867 | { | |
1868 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
1869 | if (BUFFER_OBJFWDP (valcontents)) | |
1870 | { | |
1871 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
1872 | int idx = PER_BUFFER_IDX (offset); | |
1873 | if (idx == -1 || PER_BUFFER_VALUE_P (buf, idx)) | |
1874 | return Qt; | |
1875 | } | |
1876 | return Qnil; | |
1877 | } | |
1878 | default: abort (); | |
c48ead86 | 1879 | } |
62476adc | 1880 | } |
f4f04cee RS |
1881 | |
1882 | DEFUN ("local-variable-if-set-p", Flocal_variable_if_set_p, Slocal_variable_if_set_p, | |
8c1a1077 | 1883 | 1, 2, 0, |
1dc5ba01 LT |
1884 | doc: /* Non-nil if VARIABLE will be local in buffer BUFFER when set there. |
1885 | More precisely, this means that setting the variable \(with `set' or`setq'), | |
1886 | while it does not have a `let'-style binding that was made in BUFFER, | |
1887 | will produce a buffer local binding. See Info node | |
1888 | `(elisp)Creating Buffer-Local'. | |
8c1a1077 | 1889 | BUFFER defaults to the current buffer. */) |
5842a27b | 1890 | (register Lisp_Object variable, Lisp_Object buffer) |
f4f04cee | 1891 | { |
ad97b375 | 1892 | struct Lisp_Symbol *sym; |
f4f04cee | 1893 | |
b7826503 | 1894 | CHECK_SYMBOL (variable); |
ce5b453a | 1895 | sym = XSYMBOL (variable); |
f4f04cee | 1896 | |
ce5b453a SM |
1897 | start: |
1898 | switch (sym->redirect) | |
f4f04cee | 1899 | { |
ce5b453a SM |
1900 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1901 | case SYMBOL_PLAINVAL: return Qnil; | |
1902 | case SYMBOL_LOCALIZED: | |
1903 | { | |
1904 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
1905 | if (blv->local_if_set) | |
1906 | return Qt; | |
1907 | XSETSYMBOL (variable, sym); /* Update in case of aliasing. */ | |
1908 | return Flocal_variable_p (variable, buffer); | |
1909 | } | |
1910 | case SYMBOL_FORWARDED: | |
1911 | /* All BUFFER_OBJFWD slots become local if they are set. */ | |
1912 | return (BUFFER_OBJFWDP (SYMBOL_FWD (sym)) ? Qt : Qnil); | |
1913 | default: abort (); | |
f4f04cee | 1914 | } |
f4f04cee | 1915 | } |
6b61353c KH |
1916 | |
1917 | DEFUN ("variable-binding-locus", Fvariable_binding_locus, Svariable_binding_locus, | |
1918 | 1, 1, 0, | |
1919 | doc: /* Return a value indicating where VARIABLE's current binding comes from. | |
1920 | If the current binding is buffer-local, the value is the current buffer. | |
1921 | If the current binding is frame-local, the value is the selected frame. | |
1922 | If the current binding is global (the default), the value is nil. */) | |
5842a27b | 1923 | (register Lisp_Object variable) |
6b61353c | 1924 | { |
ad97b375 | 1925 | struct Lisp_Symbol *sym; |
6b61353c KH |
1926 | |
1927 | CHECK_SYMBOL (variable); | |
ce5b453a | 1928 | sym = XSYMBOL (variable); |
6b61353c KH |
1929 | |
1930 | /* Make sure the current binding is actually swapped in. */ | |
1931 | find_symbol_value (variable); | |
1932 | ||
ce5b453a SM |
1933 | start: |
1934 | switch (sym->redirect) | |
6b61353c | 1935 | { |
ce5b453a SM |
1936 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1937 | case SYMBOL_PLAINVAL: return Qnil; | |
1938 | case SYMBOL_FORWARDED: | |
1939 | { | |
1940 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
1941 | if (KBOARD_OBJFWDP (valcontents)) | |
1942 | return Fframe_terminal (Fselected_frame ()); | |
1943 | else if (!BUFFER_OBJFWDP (valcontents)) | |
1944 | return Qnil; | |
1945 | } | |
1946 | /* FALLTHROUGH */ | |
1947 | case SYMBOL_LOCALIZED: | |
6b61353c KH |
1948 | /* For a local variable, record both the symbol and which |
1949 | buffer's or frame's value we are saving. */ | |
1950 | if (!NILP (Flocal_variable_p (variable, Qnil))) | |
1951 | return Fcurrent_buffer (); | |
ce5b453a SM |
1952 | else if (sym->redirect == SYMBOL_LOCALIZED |
1953 | && BLV_FOUND (SYMBOL_BLV (sym))) | |
1954 | return SYMBOL_BLV (sym)->where; | |
1955 | else | |
1956 | return Qnil; | |
1957 | default: abort (); | |
6b61353c | 1958 | } |
6b61353c | 1959 | } |
2a42d440 | 1960 | |
c40bb1ba KL |
1961 | /* This code is disabled now that we use the selected frame to return |
1962 | keyboard-local-values. */ | |
1963 | #if 0 | |
f57e2426 | 1964 | extern struct terminal *get_terminal (Lisp_Object display, int); |
2a42d440 KL |
1965 | |
1966 | DEFUN ("terminal-local-value", Fterminal_local_value, Sterminal_local_value, 2, 2, 0, | |
6ed8eeff | 1967 | doc: /* Return the terminal-local value of SYMBOL on TERMINAL. |
2a42d440 KL |
1968 | If SYMBOL is not a terminal-local variable, then return its normal |
1969 | value, like `symbol-value'. | |
1970 | ||
708e05dc | 1971 | TERMINAL may be a terminal object, a frame, or nil (meaning the |
6ed8eeff | 1972 | selected frame's terminal device). */) |
5842a27b | 1973 | (Lisp_Object symbol, Lisp_Object terminal) |
2a42d440 KL |
1974 | { |
1975 | Lisp_Object result; | |
6ed8eeff KL |
1976 | struct terminal *t = get_terminal (terminal, 1); |
1977 | push_kboard (t->kboard); | |
2a42d440 | 1978 | result = Fsymbol_value (symbol); |
256c9c3a | 1979 | pop_kboard (); |
2a42d440 KL |
1980 | return result; |
1981 | } | |
1982 | ||
1983 | DEFUN ("set-terminal-local-value", Fset_terminal_local_value, Sset_terminal_local_value, 3, 3, 0, | |
6ed8eeff | 1984 | doc: /* Set the terminal-local binding of SYMBOL on TERMINAL to VALUE. |
2a42d440 | 1985 | If VARIABLE is not a terminal-local variable, then set its normal |
7e59217d KL |
1986 | binding, like `set'. |
1987 | ||
708e05dc | 1988 | TERMINAL may be a terminal object, a frame, or nil (meaning the |
6ed8eeff | 1989 | selected frame's terminal device). */) |
5842a27b | 1990 | (Lisp_Object symbol, Lisp_Object terminal, Lisp_Object value) |
2a42d440 KL |
1991 | { |
1992 | Lisp_Object result; | |
6ed8eeff | 1993 | struct terminal *t = get_terminal (terminal, 1); |
256c9c3a | 1994 | push_kboard (d->kboard); |
2a42d440 | 1995 | result = Fset (symbol, value); |
256c9c3a | 1996 | pop_kboard (); |
2a42d440 KL |
1997 | return result; |
1998 | } | |
c40bb1ba | 1999 | #endif |
7921925c | 2000 | \f |
ffd56f97 JB |
2001 | /* Find the function at the end of a chain of symbol function indirections. */ |
2002 | ||
2003 | /* If OBJECT is a symbol, find the end of its function chain and | |
2004 | return the value found there. If OBJECT is not a symbol, just | |
2005 | return it. If there is a cycle in the function chain, signal a | |
2006 | cyclic-function-indirection error. | |
2007 | ||
2008 | This is like Findirect_function, except that it doesn't signal an | |
2009 | error if the chain ends up unbound. */ | |
2010 | Lisp_Object | |
971de7fb | 2011 | indirect_function (register Lisp_Object object) |
ffd56f97 | 2012 | { |
eb8c3be9 | 2013 | Lisp_Object tortoise, hare; |
ffd56f97 | 2014 | |
eb8c3be9 | 2015 | hare = tortoise = object; |
ffd56f97 JB |
2016 | |
2017 | for (;;) | |
2018 | { | |
e9ebc175 | 2019 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
2020 | break; |
2021 | hare = XSYMBOL (hare)->function; | |
e9ebc175 | 2022 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
2023 | break; |
2024 | hare = XSYMBOL (hare)->function; | |
2025 | ||
eb8c3be9 | 2026 | tortoise = XSYMBOL (tortoise)->function; |
ffd56f97 | 2027 | |
eb8c3be9 | 2028 | if (EQ (hare, tortoise)) |
740ef0b5 | 2029 | xsignal1 (Qcyclic_function_indirection, object); |
ffd56f97 JB |
2030 | } |
2031 | ||
2032 | return hare; | |
2033 | } | |
2034 | ||
a7f96a35 | 2035 | DEFUN ("indirect-function", Findirect_function, Sindirect_function, 1, 2, 0, |
8c1a1077 | 2036 | doc: /* Return the function at the end of OBJECT's function chain. |
0ddb0ae8 TTN |
2037 | If OBJECT is not a symbol, just return it. Otherwise, follow all |
2038 | function indirections to find the final function binding and return it. | |
2039 | If the final symbol in the chain is unbound, signal a void-function error. | |
2040 | Optional arg NOERROR non-nil means to return nil instead of signalling. | |
8c1a1077 PJ |
2041 | Signal a cyclic-function-indirection error if there is a loop in the |
2042 | function chain of symbols. */) | |
5842a27b | 2043 | (register Lisp_Object object, Lisp_Object noerror) |
ffd56f97 JB |
2044 | { |
2045 | Lisp_Object result; | |
2046 | ||
64de53d8 KS |
2047 | /* Optimize for no indirection. */ |
2048 | result = object; | |
2049 | if (SYMBOLP (result) && !EQ (result, Qunbound) | |
2050 | && (result = XSYMBOL (result)->function, SYMBOLP (result))) | |
2051 | result = indirect_function (result); | |
2052 | if (!EQ (result, Qunbound)) | |
2053 | return result; | |
ffd56f97 | 2054 | |
64de53d8 | 2055 | if (NILP (noerror)) |
740ef0b5 | 2056 | xsignal1 (Qvoid_function, object); |
ffd56f97 | 2057 | |
64de53d8 | 2058 | return Qnil; |
ffd56f97 JB |
2059 | } |
2060 | \f | |
7921925c JB |
2061 | /* Extract and set vector and string elements */ |
2062 | ||
2063 | DEFUN ("aref", Faref, Saref, 2, 2, 0, | |
8c1a1077 PJ |
2064 | doc: /* Return the element of ARRAY at index IDX. |
2065 | ARRAY may be a vector, a string, a char-table, a bool-vector, | |
2066 | or a byte-code object. IDX starts at 0. */) | |
5842a27b | 2067 | (register Lisp_Object array, Lisp_Object idx) |
7921925c | 2068 | { |
ace1712c | 2069 | register EMACS_INT idxval; |
7921925c | 2070 | |
b7826503 | 2071 | CHECK_NUMBER (idx); |
7921925c | 2072 | idxval = XINT (idx); |
e9ebc175 | 2073 | if (STRINGP (array)) |
7921925c | 2074 | { |
ace1712c EZ |
2075 | int c; |
2076 | EMACS_INT idxval_byte; | |
25638b07 | 2077 | |
d5db4077 | 2078 | if (idxval < 0 || idxval >= SCHARS (array)) |
c24e4efe | 2079 | args_out_of_range (array, idx); |
25638b07 | 2080 | if (! STRING_MULTIBYTE (array)) |
d5db4077 | 2081 | return make_number ((unsigned char) SREF (array, idxval)); |
25638b07 RS |
2082 | idxval_byte = string_char_to_byte (array, idxval); |
2083 | ||
62a6e103 | 2084 | c = STRING_CHAR (SDATA (array) + idxval_byte); |
25638b07 | 2085 | return make_number (c); |
7921925c | 2086 | } |
4d276982 RS |
2087 | else if (BOOL_VECTOR_P (array)) |
2088 | { | |
2089 | int val; | |
4d276982 RS |
2090 | |
2091 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
2092 | args_out_of_range (array, idx); | |
2093 | ||
b9ed2177 AS |
2094 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR]; |
2095 | return (val & (1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR)) ? Qt : Qnil); | |
4d276982 RS |
2096 | } |
2097 | else if (CHAR_TABLE_P (array)) | |
2098 | { | |
e6e1f521 KH |
2099 | CHECK_CHARACTER (idx); |
2100 | return CHAR_TABLE_REF (array, idxval); | |
4d276982 | 2101 | } |
7921925c | 2102 | else |
c24e4efe | 2103 | { |
6bbd7a29 | 2104 | int size = 0; |
7f358972 | 2105 | if (VECTORP (array)) |
876c194c SM |
2106 | size = XVECTOR (array)->size; |
2107 | else if (COMPILEDP (array)) | |
2108 | size = XVECTOR (array)->size & PSEUDOVECTOR_SIZE_MASK; | |
7f358972 RS |
2109 | else |
2110 | wrong_type_argument (Qarrayp, array); | |
2111 | ||
2112 | if (idxval < 0 || idxval >= size) | |
c24e4efe | 2113 | args_out_of_range (array, idx); |
b9598260 | 2114 | return AREF (array, idxval); |
c24e4efe | 2115 | } |
7921925c JB |
2116 | } |
2117 | ||
2118 | DEFUN ("aset", Faset, Saset, 3, 3, 0, | |
8c1a1077 | 2119 | doc: /* Store into the element of ARRAY at index IDX the value NEWELT. |
bfb96cb7 FP |
2120 | Return NEWELT. ARRAY may be a vector, a string, a char-table or a |
2121 | bool-vector. IDX starts at 0. */) | |
5842a27b | 2122 | (register Lisp_Object array, Lisp_Object idx, Lisp_Object newelt) |
7921925c | 2123 | { |
ace1712c | 2124 | register EMACS_INT idxval; |
7921925c | 2125 | |
b7826503 | 2126 | CHECK_NUMBER (idx); |
7921925c | 2127 | idxval = XINT (idx); |
0c64a8cd | 2128 | CHECK_ARRAY (array, Qarrayp); |
7921925c JB |
2129 | CHECK_IMPURE (array); |
2130 | ||
e9ebc175 | 2131 | if (VECTORP (array)) |
c24e4efe KH |
2132 | { |
2133 | if (idxval < 0 || idxval >= XVECTOR (array)->size) | |
2134 | args_out_of_range (array, idx); | |
2135 | XVECTOR (array)->contents[idxval] = newelt; | |
2136 | } | |
4d276982 RS |
2137 | else if (BOOL_VECTOR_P (array)) |
2138 | { | |
2139 | int val; | |
4d276982 RS |
2140 | |
2141 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
2142 | args_out_of_range (array, idx); | |
2143 | ||
b9ed2177 | 2144 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR]; |
4d276982 RS |
2145 | |
2146 | if (! NILP (newelt)) | |
b9ed2177 | 2147 | val |= 1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR); |
4d276982 | 2148 | else |
b9ed2177 AS |
2149 | val &= ~(1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR)); |
2150 | XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR] = val; | |
4d276982 RS |
2151 | } |
2152 | else if (CHAR_TABLE_P (array)) | |
2153 | { | |
e6e1f521 KH |
2154 | CHECK_CHARACTER (idx); |
2155 | CHAR_TABLE_SET (array, idxval, newelt); | |
4d276982 | 2156 | } |
25638b07 RS |
2157 | else if (STRING_MULTIBYTE (array)) |
2158 | { | |
ace1712c | 2159 | EMACS_INT idxval_byte, prev_bytes, new_bytes, nbytes; |
3c9de1af | 2160 | unsigned char workbuf[MAX_MULTIBYTE_LENGTH], *p0 = workbuf, *p1; |
25638b07 | 2161 | |
d5db4077 | 2162 | if (idxval < 0 || idxval >= SCHARS (array)) |
25638b07 | 2163 | args_out_of_range (array, idx); |
d9130605 | 2164 | CHECK_CHARACTER (newelt); |
25638b07 | 2165 | |
c6464167 MB |
2166 | nbytes = SBYTES (array); |
2167 | ||
25638b07 | 2168 | idxval_byte = string_char_to_byte (array, idxval); |
29f44a37 | 2169 | p1 = SDATA (array) + idxval_byte; |
aa3830c4 | 2170 | prev_bytes = BYTES_BY_CHAR_HEAD (*p1); |
3c9de1af KH |
2171 | new_bytes = CHAR_STRING (XINT (newelt), p0); |
2172 | if (prev_bytes != new_bytes) | |
2173 | { | |
2174 | /* We must relocate the string data. */ | |
ace1712c | 2175 | EMACS_INT nchars = SCHARS (array); |
3c9de1af | 2176 | unsigned char *str; |
f1a87317 | 2177 | USE_SAFE_ALLOCA; |
3c9de1af | 2178 | |
f1a87317 | 2179 | SAFE_ALLOCA (str, unsigned char *, nbytes); |
72af86bd | 2180 | memcpy (str, SDATA (array), nbytes); |
3c9de1af KH |
2181 | allocate_string_data (XSTRING (array), nchars, |
2182 | nbytes + new_bytes - prev_bytes); | |
72af86bd | 2183 | memcpy (SDATA (array), str, idxval_byte); |
d5db4077 | 2184 | p1 = SDATA (array) + idxval_byte; |
72af86bd AS |
2185 | memcpy (p1 + new_bytes, str + idxval_byte + prev_bytes, |
2186 | nbytes - (idxval_byte + prev_bytes)); | |
233f3db6 | 2187 | SAFE_FREE (); |
3c9de1af KH |
2188 | clear_string_char_byte_cache (); |
2189 | } | |
2190 | while (new_bytes--) | |
2191 | *p1++ = *p0++; | |
25638b07 | 2192 | } |
7921925c JB |
2193 | else |
2194 | { | |
d5db4077 | 2195 | if (idxval < 0 || idxval >= SCHARS (array)) |
c24e4efe | 2196 | args_out_of_range (array, idx); |
b7826503 | 2197 | CHECK_NUMBER (newelt); |
3c9de1af | 2198 | |
476e47ca | 2199 | if (XINT (newelt) >= 0 && ! SINGLE_BYTE_CHAR_P (XINT (newelt))) |
5dff5999 KH |
2200 | { |
2201 | int i; | |
2202 | ||
2203 | for (i = SBYTES (array) - 1; i >= 0; i--) | |
2204 | if (SREF (array, i) >= 0x80) | |
2205 | args_out_of_range (array, newelt); | |
2206 | /* ARRAY is an ASCII string. Convert it to a multibyte | |
2207 | string, and try `aset' again. */ | |
2208 | STRING_SET_MULTIBYTE (array); | |
2209 | return Faset (array, idx, newelt); | |
2210 | } | |
476e47ca | 2211 | SSET (array, idxval, XINT (newelt)); |
7921925c JB |
2212 | } |
2213 | ||
2214 | return newelt; | |
2215 | } | |
7921925c JB |
2216 | \f |
2217 | /* Arithmetic functions */ | |
2218 | ||
2219 | enum comparison { equal, notequal, less, grtr, less_or_equal, grtr_or_equal }; | |
2220 | ||
2221 | Lisp_Object | |
971de7fb | 2222 | arithcompare (Lisp_Object num1, Lisp_Object num2, enum comparison comparison) |
7921925c | 2223 | { |
6bbd7a29 | 2224 | double f1 = 0, f2 = 0; |
7921925c JB |
2225 | int floatp = 0; |
2226 | ||
b7826503 PJ |
2227 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1); |
2228 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2); | |
7921925c | 2229 | |
e9ebc175 | 2230 | if (FLOATP (num1) || FLOATP (num2)) |
7921925c JB |
2231 | { |
2232 | floatp = 1; | |
7539e11f KR |
2233 | f1 = (FLOATP (num1)) ? XFLOAT_DATA (num1) : XINT (num1); |
2234 | f2 = (FLOATP (num2)) ? XFLOAT_DATA (num2) : XINT (num2); | |
7921925c | 2235 | } |
7921925c JB |
2236 | |
2237 | switch (comparison) | |
2238 | { | |
2239 | case equal: | |
2240 | if (floatp ? f1 == f2 : XINT (num1) == XINT (num2)) | |
2241 | return Qt; | |
2242 | return Qnil; | |
2243 | ||
2244 | case notequal: | |
2245 | if (floatp ? f1 != f2 : XINT (num1) != XINT (num2)) | |
2246 | return Qt; | |
2247 | return Qnil; | |
2248 | ||
2249 | case less: | |
2250 | if (floatp ? f1 < f2 : XINT (num1) < XINT (num2)) | |
2251 | return Qt; | |
2252 | return Qnil; | |
2253 | ||
2254 | case less_or_equal: | |
2255 | if (floatp ? f1 <= f2 : XINT (num1) <= XINT (num2)) | |
2256 | return Qt; | |
2257 | return Qnil; | |
2258 | ||
2259 | case grtr: | |
2260 | if (floatp ? f1 > f2 : XINT (num1) > XINT (num2)) | |
2261 | return Qt; | |
2262 | return Qnil; | |
2263 | ||
2264 | case grtr_or_equal: | |
2265 | if (floatp ? f1 >= f2 : XINT (num1) >= XINT (num2)) | |
2266 | return Qt; | |
2267 | return Qnil; | |
25e40a4b JB |
2268 | |
2269 | default: | |
2270 | abort (); | |
7921925c JB |
2271 | } |
2272 | } | |
2273 | ||
2274 | DEFUN ("=", Feqlsign, Seqlsign, 2, 2, 0, | |
8c1a1077 | 2275 | doc: /* Return t if two args, both numbers or markers, are equal. */) |
5842a27b | 2276 | (register Lisp_Object num1, Lisp_Object num2) |
7921925c JB |
2277 | { |
2278 | return arithcompare (num1, num2, equal); | |
2279 | } | |
2280 | ||
2281 | DEFUN ("<", Flss, Slss, 2, 2, 0, | |
8c1a1077 | 2282 | doc: /* Return t if first arg is less than second arg. Both must be numbers or markers. */) |
5842a27b | 2283 | (register Lisp_Object num1, Lisp_Object num2) |
7921925c JB |
2284 | { |
2285 | return arithcompare (num1, num2, less); | |
2286 | } | |
2287 | ||
2288 | DEFUN (">", Fgtr, Sgtr, 2, 2, 0, | |
8c1a1077 | 2289 | doc: /* Return t if first arg is greater than second arg. Both must be numbers or markers. */) |
5842a27b | 2290 | (register Lisp_Object num1, Lisp_Object num2) |
7921925c JB |
2291 | { |
2292 | return arithcompare (num1, num2, grtr); | |
2293 | } | |
2294 | ||
2295 | DEFUN ("<=", Fleq, Sleq, 2, 2, 0, | |
8c1a1077 PJ |
2296 | doc: /* Return t if first arg is less than or equal to second arg. |
2297 | Both must be numbers or markers. */) | |
5842a27b | 2298 | (register Lisp_Object num1, Lisp_Object num2) |
7921925c JB |
2299 | { |
2300 | return arithcompare (num1, num2, less_or_equal); | |
2301 | } | |
2302 | ||
2303 | DEFUN (">=", Fgeq, Sgeq, 2, 2, 0, | |
8c1a1077 PJ |
2304 | doc: /* Return t if first arg is greater than or equal to second arg. |
2305 | Both must be numbers or markers. */) | |
5842a27b | 2306 | (register Lisp_Object num1, Lisp_Object num2) |
7921925c JB |
2307 | { |
2308 | return arithcompare (num1, num2, grtr_or_equal); | |
2309 | } | |
2310 | ||
2311 | DEFUN ("/=", Fneq, Sneq, 2, 2, 0, | |
8c1a1077 | 2312 | doc: /* Return t if first arg is not equal to second arg. Both must be numbers or markers. */) |
5842a27b | 2313 | (register Lisp_Object num1, Lisp_Object num2) |
7921925c JB |
2314 | { |
2315 | return arithcompare (num1, num2, notequal); | |
2316 | } | |
2317 | ||
8c1a1077 PJ |
2318 | DEFUN ("zerop", Fzerop, Szerop, 1, 1, 0, |
2319 | doc: /* Return t if NUMBER is zero. */) | |
5842a27b | 2320 | (register Lisp_Object number) |
7921925c | 2321 | { |
b7826503 | 2322 | CHECK_NUMBER_OR_FLOAT (number); |
7921925c | 2323 | |
d9c2a0f2 | 2324 | if (FLOATP (number)) |
7921925c | 2325 | { |
7539e11f | 2326 | if (XFLOAT_DATA (number) == 0.0) |
7921925c JB |
2327 | return Qt; |
2328 | return Qnil; | |
2329 | } | |
7921925c | 2330 | |
d9c2a0f2 | 2331 | if (!XINT (number)) |
7921925c JB |
2332 | return Qt; |
2333 | return Qnil; | |
2334 | } | |
2335 | \f | |
70e9f399 RS |
2336 | /* Convert between long values and pairs of Lisp integers. |
2337 | Note that long_to_cons returns a single Lisp integer | |
2338 | when the value fits in one. */ | |
51cf3e31 JB |
2339 | |
2340 | Lisp_Object | |
971de7fb | 2341 | long_to_cons (long unsigned int i) |
51cf3e31 | 2342 | { |
9bc7166b | 2343 | unsigned long top = i >> 16; |
51cf3e31 JB |
2344 | unsigned int bot = i & 0xFFFF; |
2345 | if (top == 0) | |
2346 | return make_number (bot); | |
b42cfa11 | 2347 | if (top == (unsigned long)-1 >> 16) |
51cf3e31 JB |
2348 | return Fcons (make_number (-1), make_number (bot)); |
2349 | return Fcons (make_number (top), make_number (bot)); | |
2350 | } | |
2351 | ||
2352 | unsigned long | |
971de7fb | 2353 | cons_to_long (Lisp_Object c) |
51cf3e31 | 2354 | { |
878a80cc | 2355 | Lisp_Object top, bot; |
51cf3e31 JB |
2356 | if (INTEGERP (c)) |
2357 | return XINT (c); | |
7539e11f KR |
2358 | top = XCAR (c); |
2359 | bot = XCDR (c); | |
51cf3e31 | 2360 | if (CONSP (bot)) |
7539e11f | 2361 | bot = XCAR (bot); |
51cf3e31 JB |
2362 | return ((XINT (top) << 16) | XINT (bot)); |
2363 | } | |
2364 | \f | |
f2980264 | 2365 | DEFUN ("number-to-string", Fnumber_to_string, Snumber_to_string, 1, 1, 0, |
bfb96cb7 | 2366 | doc: /* Return the decimal representation of NUMBER as a string. |
8c1a1077 PJ |
2367 | Uses a minus sign if negative. |
2368 | NUMBER may be an integer or a floating point number. */) | |
5842a27b | 2369 | (Lisp_Object number) |
7921925c | 2370 | { |
6030ce64 | 2371 | char buffer[VALBITS]; |
7921925c | 2372 | |
b7826503 | 2373 | CHECK_NUMBER_OR_FLOAT (number); |
7921925c | 2374 | |
d9c2a0f2 | 2375 | if (FLOATP (number)) |
7921925c | 2376 | { |
6e8e6bf2 | 2377 | char pigbuf[FLOAT_TO_STRING_BUFSIZE]; |
7921925c | 2378 | |
7539e11f | 2379 | float_to_string (pigbuf, XFLOAT_DATA (number)); |
7403b5c8 | 2380 | return build_string (pigbuf); |
7921925c | 2381 | } |
7921925c | 2382 | |
e6c82a8d | 2383 | if (sizeof (int) == sizeof (EMACS_INT)) |
dfa3bb7a | 2384 | sprintf (buffer, "%d", (int) XINT (number)); |
e6c82a8d | 2385 | else if (sizeof (long) == sizeof (EMACS_INT)) |
dd8daec5 | 2386 | sprintf (buffer, "%ld", (long) XINT (number)); |
e6c82a8d RS |
2387 | else |
2388 | abort (); | |
7921925c JB |
2389 | return build_string (buffer); |
2390 | } | |
2391 | ||
3883fbeb | 2392 | INLINE static int |
971de7fb | 2393 | digit_to_number (int character, int base) |
3883fbeb RS |
2394 | { |
2395 | int digit; | |
2396 | ||
2397 | if (character >= '0' && character <= '9') | |
2398 | digit = character - '0'; | |
2399 | else if (character >= 'a' && character <= 'z') | |
2400 | digit = character - 'a' + 10; | |
2401 | else if (character >= 'A' && character <= 'Z') | |
2402 | digit = character - 'A' + 10; | |
2403 | else | |
2404 | return -1; | |
2405 | ||
2406 | if (digit >= base) | |
2407 | return -1; | |
2408 | else | |
2409 | return digit; | |
bfb96cb7 | 2410 | } |
3883fbeb RS |
2411 | |
2412 | DEFUN ("string-to-number", Fstring_to_number, Sstring_to_number, 1, 2, 0, | |
558ee900 | 2413 | doc: /* Parse STRING as a decimal number and return the number. |
8c1a1077 | 2414 | This parses both integers and floating point numbers. |
be95bee9 | 2415 | It ignores leading spaces and tabs, and all trailing chars. |
8c1a1077 PJ |
2416 | |
2417 | If BASE, interpret STRING as a number in that base. If BASE isn't | |
2418 | present, base 10 is used. BASE must be between 2 and 16 (inclusive). | |
be95bee9 | 2419 | If the base used is not 10, STRING is always parsed as integer. */) |
5842a27b | 2420 | (register Lisp_Object string, Lisp_Object base) |
7921925c | 2421 | { |
57ace6d0 | 2422 | register char *p; |
342858a5 GM |
2423 | register int b; |
2424 | int sign = 1; | |
2425 | Lisp_Object val; | |
25e40a4b | 2426 | |
b7826503 | 2427 | CHECK_STRING (string); |
7921925c | 2428 | |
3883fbeb RS |
2429 | if (NILP (base)) |
2430 | b = 10; | |
2431 | else | |
2432 | { | |
b7826503 | 2433 | CHECK_NUMBER (base); |
3883fbeb RS |
2434 | b = XINT (base); |
2435 | if (b < 2 || b > 16) | |
740ef0b5 | 2436 | xsignal1 (Qargs_out_of_range, base); |
3883fbeb RS |
2437 | } |
2438 | ||
25e40a4b JB |
2439 | /* Skip any whitespace at the front of the number. Some versions of |
2440 | atoi do this anyway, so we might as well make Emacs lisp consistent. */ | |
57ace6d0 | 2441 | p = SSDATA (string); |
0a3e4d65 | 2442 | while (*p == ' ' || *p == '\t') |
25e40a4b JB |
2443 | p++; |
2444 | ||
3883fbeb RS |
2445 | if (*p == '-') |
2446 | { | |
342858a5 | 2447 | sign = -1; |
3883fbeb RS |
2448 | p++; |
2449 | } | |
2450 | else if (*p == '+') | |
2451 | p++; | |
bfb96cb7 | 2452 | |
be95bee9 | 2453 | if (isfloat_string (p, 1) && b == 10) |
342858a5 GM |
2454 | val = make_float (sign * atof (p)); |
2455 | else | |
3883fbeb | 2456 | { |
342858a5 GM |
2457 | double v = 0; |
2458 | ||
2459 | while (1) | |
2460 | { | |
2461 | int digit = digit_to_number (*p++, b); | |
2462 | if (digit < 0) | |
2463 | break; | |
2464 | v = v * b + digit; | |
2465 | } | |
2466 | ||
cb938d46 | 2467 | val = make_fixnum_or_float (sign * v); |
3883fbeb | 2468 | } |
342858a5 GM |
2469 | |
2470 | return val; | |
7921925c | 2471 | } |
3883fbeb | 2472 | |
7403b5c8 | 2473 | \f |
7921925c | 2474 | enum arithop |
7a283f36 GM |
2475 | { |
2476 | Aadd, | |
2477 | Asub, | |
2478 | Amult, | |
2479 | Adiv, | |
2480 | Alogand, | |
2481 | Alogior, | |
2482 | Alogxor, | |
2483 | Amax, | |
2484 | Amin | |
2485 | }; | |
2486 | ||
f57e2426 J |
2487 | static Lisp_Object float_arith_driver (double, int, enum arithop, |
2488 | int, Lisp_Object *); | |
7921925c | 2489 | Lisp_Object |
971de7fb | 2490 | arith_driver (enum arithop code, int nargs, register Lisp_Object *args) |
7921925c JB |
2491 | { |
2492 | register Lisp_Object val; | |
2493 | register int argnum; | |
7a283f36 | 2494 | register EMACS_INT accum = 0; |
5260234d | 2495 | register EMACS_INT next; |
7921925c | 2496 | |
0220c518 | 2497 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2498 | { |
2499 | case Alogior: | |
2500 | case Alogxor: | |
2501 | case Aadd: | |
2502 | case Asub: | |
7a283f36 GM |
2503 | accum = 0; |
2504 | break; | |
7921925c | 2505 | case Amult: |
7a283f36 GM |
2506 | accum = 1; |
2507 | break; | |
7921925c | 2508 | case Alogand: |
7a283f36 GM |
2509 | accum = -1; |
2510 | break; | |
2511 | default: | |
2512 | break; | |
7921925c JB |
2513 | } |
2514 | ||
2515 | for (argnum = 0; argnum < nargs; argnum++) | |
2516 | { | |
7a283f36 GM |
2517 | /* Using args[argnum] as argument to CHECK_NUMBER_... */ |
2518 | val = args[argnum]; | |
b7826503 | 2519 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val); |
7921925c | 2520 | |
7a283f36 GM |
2521 | if (FLOATP (val)) |
2522 | return float_arith_driver ((double) accum, argnum, code, | |
2523 | nargs, args); | |
2524 | args[argnum] = val; | |
7921925c | 2525 | next = XINT (args[argnum]); |
0220c518 | 2526 | switch (SWITCH_ENUM_CAST (code)) |
7921925c | 2527 | { |
7a283f36 GM |
2528 | case Aadd: |
2529 | accum += next; | |
2530 | break; | |
7921925c | 2531 | case Asub: |
e64981da | 2532 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c | 2533 | break; |
7a283f36 GM |
2534 | case Amult: |
2535 | accum *= next; | |
2536 | break; | |
7921925c | 2537 | case Adiv: |
7a283f36 GM |
2538 | if (!argnum) |
2539 | accum = next; | |
87fbf902 RS |
2540 | else |
2541 | { | |
2542 | if (next == 0) | |
740ef0b5 | 2543 | xsignal0 (Qarith_error); |
87fbf902 RS |
2544 | accum /= next; |
2545 | } | |
7921925c | 2546 | break; |
7a283f36 GM |
2547 | case Alogand: |
2548 | accum &= next; | |
2549 | break; | |
2550 | case Alogior: | |
2551 | accum |= next; | |
2552 | break; | |
2553 | case Alogxor: | |
2554 | accum ^= next; | |
2555 | break; | |
2556 | case Amax: | |
2557 | if (!argnum || next > accum) | |
2558 | accum = next; | |
2559 | break; | |
2560 | case Amin: | |
2561 | if (!argnum || next < accum) | |
2562 | accum = next; | |
2563 | break; | |
7921925c JB |
2564 | } |
2565 | } | |
2566 | ||
f187f1f7 | 2567 | XSETINT (val, accum); |
7921925c JB |
2568 | return val; |
2569 | } | |
2570 | ||
1a2f2d33 KH |
2571 | #undef isnan |
2572 | #define isnan(x) ((x) != (x)) | |
2573 | ||
7a283f36 | 2574 | static Lisp_Object |
971de7fb | 2575 | float_arith_driver (double accum, register int argnum, enum arithop code, int nargs, register Lisp_Object *args) |
7921925c JB |
2576 | { |
2577 | register Lisp_Object val; | |
2578 | double next; | |
7403b5c8 | 2579 | |
7921925c JB |
2580 | for (; argnum < nargs; argnum++) |
2581 | { | |
2582 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ | |
b7826503 | 2583 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val); |
7921925c | 2584 | |
e9ebc175 | 2585 | if (FLOATP (val)) |
7921925c | 2586 | { |
7539e11f | 2587 | next = XFLOAT_DATA (val); |
7921925c JB |
2588 | } |
2589 | else | |
2590 | { | |
2591 | args[argnum] = val; /* runs into a compiler bug. */ | |
2592 | next = XINT (args[argnum]); | |
2593 | } | |
0220c518 | 2594 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2595 | { |
2596 | case Aadd: | |
2597 | accum += next; | |
2598 | break; | |
2599 | case Asub: | |
e64981da | 2600 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c JB |
2601 | break; |
2602 | case Amult: | |
2603 | accum *= next; | |
2604 | break; | |
2605 | case Adiv: | |
2606 | if (!argnum) | |
2607 | accum = next; | |
2608 | else | |
87fbf902 | 2609 | { |
ad8d56b9 | 2610 | if (! IEEE_FLOATING_POINT && next == 0) |
740ef0b5 | 2611 | xsignal0 (Qarith_error); |
87fbf902 RS |
2612 | accum /= next; |
2613 | } | |
7921925c JB |
2614 | break; |
2615 | case Alogand: | |
2616 | case Alogior: | |
2617 | case Alogxor: | |
2618 | return wrong_type_argument (Qinteger_or_marker_p, val); | |
2619 | case Amax: | |
1a2f2d33 | 2620 | if (!argnum || isnan (next) || next > accum) |
7921925c JB |
2621 | accum = next; |
2622 | break; | |
2623 | case Amin: | |
1a2f2d33 | 2624 | if (!argnum || isnan (next) || next < accum) |
7921925c JB |
2625 | accum = next; |
2626 | break; | |
2627 | } | |
2628 | } | |
2629 | ||
2630 | return make_float (accum); | |
2631 | } | |
cc94f3b2 | 2632 | |
7921925c JB |
2633 | |
2634 | DEFUN ("+", Fplus, Splus, 0, MANY, 0, | |
8c1a1077 PJ |
2635 | doc: /* Return sum of any number of arguments, which are numbers or markers. |
2636 | usage: (+ &rest NUMBERS-OR-MARKERS) */) | |
5842a27b | 2637 | (int nargs, Lisp_Object *args) |
7921925c JB |
2638 | { |
2639 | return arith_driver (Aadd, nargs, args); | |
2640 | } | |
2641 | ||
2642 | DEFUN ("-", Fminus, Sminus, 0, MANY, 0, | |
558ee900 | 2643 | doc: /* Negate number or subtract numbers or markers and return the result. |
8c1a1077 | 2644 | With one arg, negates it. With more than one arg, |
f44fba9e | 2645 | subtracts all but the first from the first. |
8c1a1077 | 2646 | usage: (- &optional NUMBER-OR-MARKER &rest MORE-NUMBERS-OR-MARKERS) */) |
5842a27b | 2647 | (int nargs, Lisp_Object *args) |
7921925c JB |
2648 | { |
2649 | return arith_driver (Asub, nargs, args); | |
2650 | } | |
2651 | ||
2652 | DEFUN ("*", Ftimes, Stimes, 0, MANY, 0, | |
be24eadf | 2653 | doc: /* Return product of any number of arguments, which are numbers or markers. |
8c1a1077 | 2654 | usage: (* &rest NUMBERS-OR-MARKERS) */) |
5842a27b | 2655 | (int nargs, Lisp_Object *args) |
7921925c JB |
2656 | { |
2657 | return arith_driver (Amult, nargs, args); | |
2658 | } | |
2659 | ||
2660 | DEFUN ("/", Fquo, Squo, 2, MANY, 0, | |
be24eadf | 2661 | doc: /* Return first argument divided by all the remaining arguments. |
f44fba9e | 2662 | The arguments must be numbers or markers. |
8c1a1077 | 2663 | usage: (/ DIVIDEND DIVISOR &rest DIVISORS) */) |
5842a27b | 2664 | (int nargs, Lisp_Object *args) |
7921925c | 2665 | { |
28712a21 | 2666 | int argnum; |
7ef98053 | 2667 | for (argnum = 2; argnum < nargs; argnum++) |
28712a21 JB |
2668 | if (FLOATP (args[argnum])) |
2669 | return float_arith_driver (0, 0, Adiv, nargs, args); | |
7921925c JB |
2670 | return arith_driver (Adiv, nargs, args); |
2671 | } | |
2672 | ||
2673 | DEFUN ("%", Frem, Srem, 2, 2, 0, | |
be24eadf | 2674 | doc: /* Return remainder of X divided by Y. |
8c1a1077 | 2675 | Both must be integers or markers. */) |
5842a27b | 2676 | (register Lisp_Object x, Lisp_Object y) |
7921925c JB |
2677 | { |
2678 | Lisp_Object val; | |
2679 | ||
b7826503 PJ |
2680 | CHECK_NUMBER_COERCE_MARKER (x); |
2681 | CHECK_NUMBER_COERCE_MARKER (y); | |
7921925c | 2682 | |
d9c2a0f2 | 2683 | if (XFASTINT (y) == 0) |
740ef0b5 | 2684 | xsignal0 (Qarith_error); |
87fbf902 | 2685 | |
d9c2a0f2 | 2686 | XSETINT (val, XINT (x) % XINT (y)); |
7921925c JB |
2687 | return val; |
2688 | } | |
2689 | ||
1d66a5fa KH |
2690 | #ifndef HAVE_FMOD |
2691 | double | |
2692 | fmod (f1, f2) | |
2693 | double f1, f2; | |
2694 | { | |
bc1c9d7e PE |
2695 | double r = f1; |
2696 | ||
fa43b1e8 KH |
2697 | if (f2 < 0.0) |
2698 | f2 = -f2; | |
bc1c9d7e PE |
2699 | |
2700 | /* If the magnitude of the result exceeds that of the divisor, or | |
2701 | the sign of the result does not agree with that of the dividend, | |
2702 | iterate with the reduced value. This does not yield a | |
2703 | particularly accurate result, but at least it will be in the | |
2704 | range promised by fmod. */ | |
2705 | do | |
2706 | r -= f2 * floor (r / f2); | |
2707 | while (f2 <= (r < 0 ? -r : r) || ((r < 0) != (f1 < 0) && ! isnan (r))); | |
2708 | ||
2709 | return r; | |
1d66a5fa KH |
2710 | } |
2711 | #endif /* ! HAVE_FMOD */ | |
2712 | ||
44fa9da5 | 2713 | DEFUN ("mod", Fmod, Smod, 2, 2, 0, |
be24eadf | 2714 | doc: /* Return X modulo Y. |
8c1a1077 PJ |
2715 | The result falls between zero (inclusive) and Y (exclusive). |
2716 | Both X and Y must be numbers or markers. */) | |
5842a27b | 2717 | (register Lisp_Object x, Lisp_Object y) |
44fa9da5 PE |
2718 | { |
2719 | Lisp_Object val; | |
5260234d | 2720 | EMACS_INT i1, i2; |
44fa9da5 | 2721 | |
b7826503 PJ |
2722 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (x); |
2723 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (y); | |
44fa9da5 | 2724 | |
d9c2a0f2 | 2725 | if (FLOATP (x) || FLOATP (y)) |
ad8d56b9 PE |
2726 | return fmod_float (x, y); |
2727 | ||
d9c2a0f2 EN |
2728 | i1 = XINT (x); |
2729 | i2 = XINT (y); | |
44fa9da5 PE |
2730 | |
2731 | if (i2 == 0) | |
740ef0b5 | 2732 | xsignal0 (Qarith_error); |
7403b5c8 | 2733 | |
44fa9da5 PE |
2734 | i1 %= i2; |
2735 | ||
2736 | /* If the "remainder" comes out with the wrong sign, fix it. */ | |
04f7ec69 | 2737 | if (i2 < 0 ? i1 > 0 : i1 < 0) |
44fa9da5 PE |
2738 | i1 += i2; |
2739 | ||
f187f1f7 | 2740 | XSETINT (val, i1); |
44fa9da5 PE |
2741 | return val; |
2742 | } | |
2743 | ||
7921925c | 2744 | DEFUN ("max", Fmax, Smax, 1, MANY, 0, |
8c1a1077 | 2745 | doc: /* Return largest of all the arguments (which must be numbers or markers). |
f44fba9e | 2746 | The value is always a number; markers are converted to numbers. |
8c1a1077 | 2747 | usage: (max NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
5842a27b | 2748 | (int nargs, Lisp_Object *args) |
7921925c JB |
2749 | { |
2750 | return arith_driver (Amax, nargs, args); | |
2751 | } | |
2752 | ||
2753 | DEFUN ("min", Fmin, Smin, 1, MANY, 0, | |
8c1a1077 | 2754 | doc: /* Return smallest of all the arguments (which must be numbers or markers). |
f44fba9e | 2755 | The value is always a number; markers are converted to numbers. |
8c1a1077 | 2756 | usage: (min NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
5842a27b | 2757 | (int nargs, Lisp_Object *args) |
7921925c JB |
2758 | { |
2759 | return arith_driver (Amin, nargs, args); | |
2760 | } | |
2761 | ||
2762 | DEFUN ("logand", Flogand, Slogand, 0, MANY, 0, | |
8c1a1077 | 2763 | doc: /* Return bitwise-and of all the arguments. |
f44fba9e | 2764 | Arguments may be integers, or markers converted to integers. |
8c1a1077 | 2765 | usage: (logand &rest INTS-OR-MARKERS) */) |
5842a27b | 2766 | (int nargs, Lisp_Object *args) |
7921925c JB |
2767 | { |
2768 | return arith_driver (Alogand, nargs, args); | |
2769 | } | |
2770 | ||
2771 | DEFUN ("logior", Flogior, Slogior, 0, MANY, 0, | |
8c1a1077 | 2772 | doc: /* Return bitwise-or of all the arguments. |
f44fba9e | 2773 | Arguments may be integers, or markers converted to integers. |
8c1a1077 | 2774 | usage: (logior &rest INTS-OR-MARKERS) */) |
5842a27b | 2775 | (int nargs, Lisp_Object *args) |
7921925c JB |
2776 | { |
2777 | return arith_driver (Alogior, nargs, args); | |
2778 | } | |
2779 | ||
2780 | DEFUN ("logxor", Flogxor, Slogxor, 0, MANY, 0, | |
8c1a1077 | 2781 | doc: /* Return bitwise-exclusive-or of all the arguments. |
f44fba9e | 2782 | Arguments may be integers, or markers converted to integers. |
31fb1b2c | 2783 | usage: (logxor &rest INTS-OR-MARKERS) */) |
5842a27b | 2784 | (int nargs, Lisp_Object *args) |
7921925c JB |
2785 | { |
2786 | return arith_driver (Alogxor, nargs, args); | |
2787 | } | |
2788 | ||
2789 | DEFUN ("ash", Fash, Sash, 2, 2, 0, | |
8c1a1077 PJ |
2790 | doc: /* Return VALUE with its bits shifted left by COUNT. |
2791 | If COUNT is negative, shifting is actually to the right. | |
2792 | In this case, the sign bit is duplicated. */) | |
5842a27b | 2793 | (register Lisp_Object value, Lisp_Object count) |
7921925c JB |
2794 | { |
2795 | register Lisp_Object val; | |
2796 | ||
b7826503 PJ |
2797 | CHECK_NUMBER (value); |
2798 | CHECK_NUMBER (count); | |
7921925c | 2799 | |
81d70626 RS |
2800 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2801 | XSETINT (val, 0); | |
2802 | else if (XINT (count) > 0) | |
3d9652eb | 2803 | XSETINT (val, XINT (value) << XFASTINT (count)); |
81d70626 RS |
2804 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2805 | XSETINT (val, XINT (value) < 0 ? -1 : 0); | |
7921925c | 2806 | else |
3d9652eb | 2807 | XSETINT (val, XINT (value) >> -XINT (count)); |
7921925c JB |
2808 | return val; |
2809 | } | |
2810 | ||
2811 | DEFUN ("lsh", Flsh, Slsh, 2, 2, 0, | |
8c1a1077 PJ |
2812 | doc: /* Return VALUE with its bits shifted left by COUNT. |
2813 | If COUNT is negative, shifting is actually to the right. | |
3a9b1297 | 2814 | In this case, zeros are shifted in on the left. */) |
5842a27b | 2815 | (register Lisp_Object value, Lisp_Object count) |
7921925c JB |
2816 | { |
2817 | register Lisp_Object val; | |
2818 | ||
b7826503 PJ |
2819 | CHECK_NUMBER (value); |
2820 | CHECK_NUMBER (count); | |
7921925c | 2821 | |
81d70626 RS |
2822 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2823 | XSETINT (val, 0); | |
2824 | else if (XINT (count) > 0) | |
3d9652eb | 2825 | XSETINT (val, (EMACS_UINT) XUINT (value) << XFASTINT (count)); |
81d70626 RS |
2826 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2827 | XSETINT (val, 0); | |
7921925c | 2828 | else |
3d9652eb | 2829 | XSETINT (val, (EMACS_UINT) XUINT (value) >> -XINT (count)); |
7921925c JB |
2830 | return val; |
2831 | } | |
2832 | ||
2833 | DEFUN ("1+", Fadd1, Sadd1, 1, 1, 0, | |
8c1a1077 PJ |
2834 | doc: /* Return NUMBER plus one. NUMBER may be a number or a marker. |
2835 | Markers are converted to integers. */) | |
5842a27b | 2836 | (register Lisp_Object number) |
7921925c | 2837 | { |
b7826503 | 2838 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number); |
7921925c | 2839 | |
d9c2a0f2 | 2840 | if (FLOATP (number)) |
7539e11f | 2841 | return (make_float (1.0 + XFLOAT_DATA (number))); |
7921925c | 2842 | |
d9c2a0f2 EN |
2843 | XSETINT (number, XINT (number) + 1); |
2844 | return number; | |
7921925c JB |
2845 | } |
2846 | ||
2847 | DEFUN ("1-", Fsub1, Ssub1, 1, 1, 0, | |
8c1a1077 PJ |
2848 | doc: /* Return NUMBER minus one. NUMBER may be a number or a marker. |
2849 | Markers are converted to integers. */) | |
5842a27b | 2850 | (register Lisp_Object number) |
7921925c | 2851 | { |
b7826503 | 2852 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number); |
7921925c | 2853 | |
d9c2a0f2 | 2854 | if (FLOATP (number)) |
7539e11f | 2855 | return (make_float (-1.0 + XFLOAT_DATA (number))); |
7921925c | 2856 | |
d9c2a0f2 EN |
2857 | XSETINT (number, XINT (number) - 1); |
2858 | return number; | |
7921925c JB |
2859 | } |
2860 | ||
2861 | DEFUN ("lognot", Flognot, Slognot, 1, 1, 0, | |
8c1a1077 | 2862 | doc: /* Return the bitwise complement of NUMBER. NUMBER must be an integer. */) |
5842a27b | 2863 | (register Lisp_Object number) |
7921925c | 2864 | { |
b7826503 | 2865 | CHECK_NUMBER (number); |
53924017 | 2866 | XSETINT (number, ~XINT (number)); |
d9c2a0f2 | 2867 | return number; |
7921925c | 2868 | } |
6b61353c KH |
2869 | |
2870 | DEFUN ("byteorder", Fbyteorder, Sbyteorder, 0, 0, 0, | |
2871 | doc: /* Return the byteorder for the machine. | |
2872 | Returns 66 (ASCII uppercase B) for big endian machines or 108 (ASCII | |
2873 | lowercase l) for small endian machines. */) | |
5842a27b | 2874 | (void) |
6b61353c KH |
2875 | { |
2876 | unsigned i = 0x04030201; | |
2877 | int order = *(char *)&i == 1 ? 108 : 66; | |
2878 | ||
2879 | return make_number (order); | |
2880 | } | |
2881 | ||
2882 | ||
7921925c JB |
2883 | \f |
2884 | void | |
971de7fb | 2885 | syms_of_data (void) |
7921925c | 2886 | { |
6315e761 RS |
2887 | Lisp_Object error_tail, arith_tail; |
2888 | ||
d67b4f80 DN |
2889 | Qquote = intern_c_string ("quote"); |
2890 | Qlambda = intern_c_string ("lambda"); | |
2891 | Qsubr = intern_c_string ("subr"); | |
2892 | Qerror_conditions = intern_c_string ("error-conditions"); | |
2893 | Qerror_message = intern_c_string ("error-message"); | |
2894 | Qtop_level = intern_c_string ("top-level"); | |
2895 | ||
2896 | Qerror = intern_c_string ("error"); | |
2897 | Qquit = intern_c_string ("quit"); | |
2898 | Qwrong_type_argument = intern_c_string ("wrong-type-argument"); | |
2899 | Qargs_out_of_range = intern_c_string ("args-out-of-range"); | |
2900 | Qvoid_function = intern_c_string ("void-function"); | |
2901 | Qcyclic_function_indirection = intern_c_string ("cyclic-function-indirection"); | |
2902 | Qcyclic_variable_indirection = intern_c_string ("cyclic-variable-indirection"); | |
2903 | Qvoid_variable = intern_c_string ("void-variable"); | |
2904 | Qsetting_constant = intern_c_string ("setting-constant"); | |
2905 | Qinvalid_read_syntax = intern_c_string ("invalid-read-syntax"); | |
2906 | ||
2907 | Qinvalid_function = intern_c_string ("invalid-function"); | |
2908 | Qwrong_number_of_arguments = intern_c_string ("wrong-number-of-arguments"); | |
2909 | Qno_catch = intern_c_string ("no-catch"); | |
2910 | Qend_of_file = intern_c_string ("end-of-file"); | |
2911 | Qarith_error = intern_c_string ("arith-error"); | |
2912 | Qbeginning_of_buffer = intern_c_string ("beginning-of-buffer"); | |
2913 | Qend_of_buffer = intern_c_string ("end-of-buffer"); | |
2914 | Qbuffer_read_only = intern_c_string ("buffer-read-only"); | |
2915 | Qtext_read_only = intern_c_string ("text-read-only"); | |
2916 | Qmark_inactive = intern_c_string ("mark-inactive"); | |
2917 | ||
2918 | Qlistp = intern_c_string ("listp"); | |
2919 | Qconsp = intern_c_string ("consp"); | |
2920 | Qsymbolp = intern_c_string ("symbolp"); | |
2921 | Qkeywordp = intern_c_string ("keywordp"); | |
2922 | Qintegerp = intern_c_string ("integerp"); | |
2923 | Qnatnump = intern_c_string ("natnump"); | |
2924 | Qwholenump = intern_c_string ("wholenump"); | |
2925 | Qstringp = intern_c_string ("stringp"); | |
2926 | Qarrayp = intern_c_string ("arrayp"); | |
2927 | Qsequencep = intern_c_string ("sequencep"); | |
2928 | Qbufferp = intern_c_string ("bufferp"); | |
2929 | Qvectorp = intern_c_string ("vectorp"); | |
2930 | Qchar_or_string_p = intern_c_string ("char-or-string-p"); | |
2931 | Qmarkerp = intern_c_string ("markerp"); | |
2932 | Qbuffer_or_string_p = intern_c_string ("buffer-or-string-p"); | |
2933 | Qinteger_or_marker_p = intern_c_string ("integer-or-marker-p"); | |
2934 | Qboundp = intern_c_string ("boundp"); | |
2935 | Qfboundp = intern_c_string ("fboundp"); | |
2936 | ||
2937 | Qfloatp = intern_c_string ("floatp"); | |
2938 | Qnumberp = intern_c_string ("numberp"); | |
2939 | Qnumber_or_marker_p = intern_c_string ("number-or-marker-p"); | |
2940 | ||
2941 | Qchar_table_p = intern_c_string ("char-table-p"); | |
2942 | Qvector_or_char_table_p = intern_c_string ("vector-or-char-table-p"); | |
2943 | ||
2944 | Qsubrp = intern_c_string ("subrp"); | |
2945 | Qunevalled = intern_c_string ("unevalled"); | |
2946 | Qmany = intern_c_string ("many"); | |
2947 | ||
2948 | Qcdr = intern_c_string ("cdr"); | |
7921925c | 2949 | |
f845f2c9 | 2950 | /* Handle automatic advice activation */ |
d67b4f80 DN |
2951 | Qad_advice_info = intern_c_string ("ad-advice-info"); |
2952 | Qad_activate_internal = intern_c_string ("ad-activate-internal"); | |
f845f2c9 | 2953 | |
d67b4f80 | 2954 | error_tail = pure_cons (Qerror, Qnil); |
6315e761 | 2955 | |
7921925c JB |
2956 | /* ERROR is used as a signaler for random errors for which nothing else is right */ |
2957 | ||
2958 | Fput (Qerror, Qerror_conditions, | |
6315e761 | 2959 | error_tail); |
7921925c | 2960 | Fput (Qerror, Qerror_message, |
d67b4f80 | 2961 | make_pure_c_string ("error")); |
7921925c JB |
2962 | |
2963 | Fput (Qquit, Qerror_conditions, | |
d67b4f80 | 2964 | pure_cons (Qquit, Qnil)); |
7921925c | 2965 | Fput (Qquit, Qerror_message, |
d67b4f80 | 2966 | make_pure_c_string ("Quit")); |
7921925c JB |
2967 | |
2968 | Fput (Qwrong_type_argument, Qerror_conditions, | |
d67b4f80 | 2969 | pure_cons (Qwrong_type_argument, error_tail)); |
7921925c | 2970 | Fput (Qwrong_type_argument, Qerror_message, |
d67b4f80 | 2971 | make_pure_c_string ("Wrong type argument")); |
7921925c JB |
2972 | |
2973 | Fput (Qargs_out_of_range, Qerror_conditions, | |
d67b4f80 | 2974 | pure_cons (Qargs_out_of_range, error_tail)); |
7921925c | 2975 | Fput (Qargs_out_of_range, Qerror_message, |
d67b4f80 | 2976 | make_pure_c_string ("Args out of range")); |
7921925c JB |
2977 | |
2978 | Fput (Qvoid_function, Qerror_conditions, | |
d67b4f80 | 2979 | pure_cons (Qvoid_function, error_tail)); |
7921925c | 2980 | Fput (Qvoid_function, Qerror_message, |
d67b4f80 | 2981 | make_pure_c_string ("Symbol's function definition is void")); |
7921925c | 2982 | |
ffd56f97 | 2983 | Fput (Qcyclic_function_indirection, Qerror_conditions, |
d67b4f80 | 2984 | pure_cons (Qcyclic_function_indirection, error_tail)); |
ffd56f97 | 2985 | Fput (Qcyclic_function_indirection, Qerror_message, |
d67b4f80 | 2986 | make_pure_c_string ("Symbol's chain of function indirections contains a loop")); |
ffd56f97 | 2987 | |
f35d5bad | 2988 | Fput (Qcyclic_variable_indirection, Qerror_conditions, |
d67b4f80 | 2989 | pure_cons (Qcyclic_variable_indirection, error_tail)); |
f35d5bad | 2990 | Fput (Qcyclic_variable_indirection, Qerror_message, |
d67b4f80 | 2991 | make_pure_c_string ("Symbol's chain of variable indirections contains a loop")); |
f35d5bad | 2992 | |
d67b4f80 | 2993 | Qcircular_list = intern_c_string ("circular-list"); |
13d95cc0 GM |
2994 | staticpro (&Qcircular_list); |
2995 | Fput (Qcircular_list, Qerror_conditions, | |
d67b4f80 | 2996 | pure_cons (Qcircular_list, error_tail)); |
13d95cc0 | 2997 | Fput (Qcircular_list, Qerror_message, |
d67b4f80 | 2998 | make_pure_c_string ("List contains a loop")); |
13d95cc0 | 2999 | |
7921925c | 3000 | Fput (Qvoid_variable, Qerror_conditions, |
d67b4f80 | 3001 | pure_cons (Qvoid_variable, error_tail)); |
7921925c | 3002 | Fput (Qvoid_variable, Qerror_message, |
d67b4f80 | 3003 | make_pure_c_string ("Symbol's value as variable is void")); |
7921925c JB |
3004 | |
3005 | Fput (Qsetting_constant, Qerror_conditions, | |
d67b4f80 | 3006 | pure_cons (Qsetting_constant, error_tail)); |
7921925c | 3007 | Fput (Qsetting_constant, Qerror_message, |
d67b4f80 | 3008 | make_pure_c_string ("Attempt to set a constant symbol")); |
7921925c JB |
3009 | |
3010 | Fput (Qinvalid_read_syntax, Qerror_conditions, | |
d67b4f80 | 3011 | pure_cons (Qinvalid_read_syntax, error_tail)); |
7921925c | 3012 | Fput (Qinvalid_read_syntax, Qerror_message, |
d67b4f80 | 3013 | make_pure_c_string ("Invalid read syntax")); |
7921925c JB |
3014 | |
3015 | Fput (Qinvalid_function, Qerror_conditions, | |
d67b4f80 | 3016 | pure_cons (Qinvalid_function, error_tail)); |
7921925c | 3017 | Fput (Qinvalid_function, Qerror_message, |
d67b4f80 | 3018 | make_pure_c_string ("Invalid function")); |
7921925c JB |
3019 | |
3020 | Fput (Qwrong_number_of_arguments, Qerror_conditions, | |
d67b4f80 | 3021 | pure_cons (Qwrong_number_of_arguments, error_tail)); |
7921925c | 3022 | Fput (Qwrong_number_of_arguments, Qerror_message, |
d67b4f80 | 3023 | make_pure_c_string ("Wrong number of arguments")); |
7921925c JB |
3024 | |
3025 | Fput (Qno_catch, Qerror_conditions, | |
d67b4f80 | 3026 | pure_cons (Qno_catch, error_tail)); |
7921925c | 3027 | Fput (Qno_catch, Qerror_message, |
d67b4f80 | 3028 | make_pure_c_string ("No catch for tag")); |
7921925c JB |
3029 | |
3030 | Fput (Qend_of_file, Qerror_conditions, | |
d67b4f80 | 3031 | pure_cons (Qend_of_file, error_tail)); |
7921925c | 3032 | Fput (Qend_of_file, Qerror_message, |
d67b4f80 | 3033 | make_pure_c_string ("End of file during parsing")); |
7921925c | 3034 | |
d67b4f80 | 3035 | arith_tail = pure_cons (Qarith_error, error_tail); |
7921925c | 3036 | Fput (Qarith_error, Qerror_conditions, |
6315e761 | 3037 | arith_tail); |
7921925c | 3038 | Fput (Qarith_error, Qerror_message, |
d67b4f80 | 3039 | make_pure_c_string ("Arithmetic error")); |
7921925c JB |
3040 | |
3041 | Fput (Qbeginning_of_buffer, Qerror_conditions, | |
d67b4f80 | 3042 | pure_cons (Qbeginning_of_buffer, error_tail)); |
7921925c | 3043 | Fput (Qbeginning_of_buffer, Qerror_message, |
d67b4f80 | 3044 | make_pure_c_string ("Beginning of buffer")); |
7921925c JB |
3045 | |
3046 | Fput (Qend_of_buffer, Qerror_conditions, | |
d67b4f80 | 3047 | pure_cons (Qend_of_buffer, error_tail)); |
7921925c | 3048 | Fput (Qend_of_buffer, Qerror_message, |
d67b4f80 | 3049 | make_pure_c_string ("End of buffer")); |
7921925c JB |
3050 | |
3051 | Fput (Qbuffer_read_only, Qerror_conditions, | |
d67b4f80 | 3052 | pure_cons (Qbuffer_read_only, error_tail)); |
7921925c | 3053 | Fput (Qbuffer_read_only, Qerror_message, |
d67b4f80 | 3054 | make_pure_c_string ("Buffer is read-only")); |
7921925c | 3055 | |
8f9f49d7 | 3056 | Fput (Qtext_read_only, Qerror_conditions, |
d67b4f80 | 3057 | pure_cons (Qtext_read_only, error_tail)); |
8f9f49d7 | 3058 | Fput (Qtext_read_only, Qerror_message, |
d67b4f80 | 3059 | make_pure_c_string ("Text is read-only")); |
8f9f49d7 | 3060 | |
d67b4f80 DN |
3061 | Qrange_error = intern_c_string ("range-error"); |
3062 | Qdomain_error = intern_c_string ("domain-error"); | |
3063 | Qsingularity_error = intern_c_string ("singularity-error"); | |
3064 | Qoverflow_error = intern_c_string ("overflow-error"); | |
3065 | Qunderflow_error = intern_c_string ("underflow-error"); | |
6315e761 RS |
3066 | |
3067 | Fput (Qdomain_error, Qerror_conditions, | |
d67b4f80 | 3068 | pure_cons (Qdomain_error, arith_tail)); |
6315e761 | 3069 | Fput (Qdomain_error, Qerror_message, |
d67b4f80 | 3070 | make_pure_c_string ("Arithmetic domain error")); |
6315e761 RS |
3071 | |
3072 | Fput (Qrange_error, Qerror_conditions, | |
d67b4f80 | 3073 | pure_cons (Qrange_error, arith_tail)); |
6315e761 | 3074 | Fput (Qrange_error, Qerror_message, |
d67b4f80 | 3075 | make_pure_c_string ("Arithmetic range error")); |
6315e761 RS |
3076 | |
3077 | Fput (Qsingularity_error, Qerror_conditions, | |
d67b4f80 | 3078 | pure_cons (Qsingularity_error, Fcons (Qdomain_error, arith_tail))); |
6315e761 | 3079 | Fput (Qsingularity_error, Qerror_message, |
d67b4f80 | 3080 | make_pure_c_string ("Arithmetic singularity error")); |
6315e761 RS |
3081 | |
3082 | Fput (Qoverflow_error, Qerror_conditions, | |
d67b4f80 | 3083 | pure_cons (Qoverflow_error, Fcons (Qdomain_error, arith_tail))); |
6315e761 | 3084 | Fput (Qoverflow_error, Qerror_message, |
d67b4f80 | 3085 | make_pure_c_string ("Arithmetic overflow error")); |
6315e761 RS |
3086 | |
3087 | Fput (Qunderflow_error, Qerror_conditions, | |
d67b4f80 | 3088 | pure_cons (Qunderflow_error, Fcons (Qdomain_error, arith_tail))); |
6315e761 | 3089 | Fput (Qunderflow_error, Qerror_message, |
d67b4f80 | 3090 | make_pure_c_string ("Arithmetic underflow error")); |
6315e761 RS |
3091 | |
3092 | staticpro (&Qrange_error); | |
3093 | staticpro (&Qdomain_error); | |
3094 | staticpro (&Qsingularity_error); | |
3095 | staticpro (&Qoverflow_error); | |
3096 | staticpro (&Qunderflow_error); | |
6315e761 | 3097 | |
7921925c JB |
3098 | staticpro (&Qnil); |
3099 | staticpro (&Qt); | |
3100 | staticpro (&Qquote); | |
3101 | staticpro (&Qlambda); | |
3102 | staticpro (&Qsubr); | |
3103 | staticpro (&Qunbound); | |
3104 | staticpro (&Qerror_conditions); | |
3105 | staticpro (&Qerror_message); | |
3106 | staticpro (&Qtop_level); | |
3107 | ||
3108 | staticpro (&Qerror); | |
3109 | staticpro (&Qquit); | |
3110 | staticpro (&Qwrong_type_argument); | |
3111 | staticpro (&Qargs_out_of_range); | |
3112 | staticpro (&Qvoid_function); | |
ffd56f97 | 3113 | staticpro (&Qcyclic_function_indirection); |
dfad0b34 | 3114 | staticpro (&Qcyclic_variable_indirection); |
7921925c JB |
3115 | staticpro (&Qvoid_variable); |
3116 | staticpro (&Qsetting_constant); | |
3117 | staticpro (&Qinvalid_read_syntax); | |
3118 | staticpro (&Qwrong_number_of_arguments); | |
3119 | staticpro (&Qinvalid_function); | |
3120 | staticpro (&Qno_catch); | |
3121 | staticpro (&Qend_of_file); | |
3122 | staticpro (&Qarith_error); | |
3123 | staticpro (&Qbeginning_of_buffer); | |
3124 | staticpro (&Qend_of_buffer); | |
3125 | staticpro (&Qbuffer_read_only); | |
8f9f49d7 | 3126 | staticpro (&Qtext_read_only); |
638b77e6 | 3127 | staticpro (&Qmark_inactive); |
7921925c JB |
3128 | |
3129 | staticpro (&Qlistp); | |
3130 | staticpro (&Qconsp); | |
3131 | staticpro (&Qsymbolp); | |
cda9b832 | 3132 | staticpro (&Qkeywordp); |
7921925c JB |
3133 | staticpro (&Qintegerp); |
3134 | staticpro (&Qnatnump); | |
8e86942b | 3135 | staticpro (&Qwholenump); |
7921925c JB |
3136 | staticpro (&Qstringp); |
3137 | staticpro (&Qarrayp); | |
3138 | staticpro (&Qsequencep); | |
3139 | staticpro (&Qbufferp); | |
3140 | staticpro (&Qvectorp); | |
3141 | staticpro (&Qchar_or_string_p); | |
3142 | staticpro (&Qmarkerp); | |
07bd8472 | 3143 | staticpro (&Qbuffer_or_string_p); |
7921925c | 3144 | staticpro (&Qinteger_or_marker_p); |
7921925c | 3145 | staticpro (&Qfloatp); |
464f8898 RS |
3146 | staticpro (&Qnumberp); |
3147 | staticpro (&Qnumber_or_marker_p); | |
4d276982 | 3148 | staticpro (&Qchar_table_p); |
7f0edce7 | 3149 | staticpro (&Qvector_or_char_table_p); |
6f0e897f DL |
3150 | staticpro (&Qsubrp); |
3151 | staticpro (&Qmany); | |
3152 | staticpro (&Qunevalled); | |
7921925c JB |
3153 | |
3154 | staticpro (&Qboundp); | |
3155 | staticpro (&Qfboundp); | |
3156 | staticpro (&Qcdr); | |
ab297811 | 3157 | staticpro (&Qad_advice_info); |
c1307a23 | 3158 | staticpro (&Qad_activate_internal); |
7921925c | 3159 | |
39bcc759 | 3160 | /* Types that type-of returns. */ |
d67b4f80 DN |
3161 | Qinteger = intern_c_string ("integer"); |
3162 | Qsymbol = intern_c_string ("symbol"); | |
3163 | Qstring = intern_c_string ("string"); | |
3164 | Qcons = intern_c_string ("cons"); | |
3165 | Qmarker = intern_c_string ("marker"); | |
3166 | Qoverlay = intern_c_string ("overlay"); | |
3167 | Qfloat = intern_c_string ("float"); | |
3168 | Qwindow_configuration = intern_c_string ("window-configuration"); | |
3169 | Qprocess = intern_c_string ("process"); | |
3170 | Qwindow = intern_c_string ("window"); | |
3171 | /* Qsubr = intern_c_string ("subr"); */ | |
3172 | Qcompiled_function = intern_c_string ("compiled-function"); | |
3173 | Qbuffer = intern_c_string ("buffer"); | |
3174 | Qframe = intern_c_string ("frame"); | |
3175 | Qvector = intern_c_string ("vector"); | |
3176 | Qchar_table = intern_c_string ("char-table"); | |
3177 | Qbool_vector = intern_c_string ("bool-vector"); | |
3178 | Qhash_table = intern_c_string ("hash-table"); | |
39bcc759 | 3179 | |
4e6f2626 CY |
3180 | DEFSYM (Qfont_spec, "font-spec"); |
3181 | DEFSYM (Qfont_entity, "font-entity"); | |
3182 | DEFSYM (Qfont_object, "font-object"); | |
3183 | ||
3860280a CY |
3184 | DEFSYM (Qinteractive_form, "interactive-form"); |
3185 | ||
39bcc759 RS |
3186 | staticpro (&Qinteger); |
3187 | staticpro (&Qsymbol); | |
3188 | staticpro (&Qstring); | |
3189 | staticpro (&Qcons); | |
3190 | staticpro (&Qmarker); | |
3191 | staticpro (&Qoverlay); | |
3192 | staticpro (&Qfloat); | |
3193 | staticpro (&Qwindow_configuration); | |
3194 | staticpro (&Qprocess); | |
3195 | staticpro (&Qwindow); | |
3196 | /* staticpro (&Qsubr); */ | |
3197 | staticpro (&Qcompiled_function); | |
3198 | staticpro (&Qbuffer); | |
3199 | staticpro (&Qframe); | |
3200 | staticpro (&Qvector); | |
fc67d5be KH |
3201 | staticpro (&Qchar_table); |
3202 | staticpro (&Qbool_vector); | |
81dc5de5 | 3203 | staticpro (&Qhash_table); |
39bcc759 | 3204 | |
f35d5bad | 3205 | defsubr (&Sindirect_variable); |
6b61353c | 3206 | defsubr (&Sinteractive_form); |
7921925c JB |
3207 | defsubr (&Seq); |
3208 | defsubr (&Snull); | |
39bcc759 | 3209 | defsubr (&Stype_of); |
7921925c JB |
3210 | defsubr (&Slistp); |
3211 | defsubr (&Snlistp); | |
3212 | defsubr (&Sconsp); | |
3213 | defsubr (&Satom); | |
3214 | defsubr (&Sintegerp); | |
464f8898 | 3215 | defsubr (&Sinteger_or_marker_p); |
7921925c JB |
3216 | defsubr (&Snumberp); |
3217 | defsubr (&Snumber_or_marker_p); | |
464f8898 | 3218 | defsubr (&Sfloatp); |
7921925c JB |
3219 | defsubr (&Snatnump); |
3220 | defsubr (&Ssymbolp); | |
cda9b832 | 3221 | defsubr (&Skeywordp); |
7921925c | 3222 | defsubr (&Sstringp); |
0f56470d | 3223 | defsubr (&Smultibyte_string_p); |
7921925c | 3224 | defsubr (&Svectorp); |
4d276982 | 3225 | defsubr (&Schar_table_p); |
7f0edce7 | 3226 | defsubr (&Svector_or_char_table_p); |
4d276982 | 3227 | defsubr (&Sbool_vector_p); |
7921925c JB |
3228 | defsubr (&Sarrayp); |
3229 | defsubr (&Ssequencep); | |
3230 | defsubr (&Sbufferp); | |
3231 | defsubr (&Smarkerp); | |
7921925c | 3232 | defsubr (&Ssubrp); |
dbc4e1c1 | 3233 | defsubr (&Sbyte_code_function_p); |
7921925c JB |
3234 | defsubr (&Schar_or_string_p); |
3235 | defsubr (&Scar); | |
3236 | defsubr (&Scdr); | |
3237 | defsubr (&Scar_safe); | |
3238 | defsubr (&Scdr_safe); | |
3239 | defsubr (&Ssetcar); | |
3240 | defsubr (&Ssetcdr); | |
3241 | defsubr (&Ssymbol_function); | |
ffd56f97 | 3242 | defsubr (&Sindirect_function); |
7921925c JB |
3243 | defsubr (&Ssymbol_plist); |
3244 | defsubr (&Ssymbol_name); | |
3245 | defsubr (&Smakunbound); | |
3246 | defsubr (&Sfmakunbound); | |
3247 | defsubr (&Sboundp); | |
3248 | defsubr (&Sfboundp); | |
3249 | defsubr (&Sfset); | |
80df38a2 | 3250 | defsubr (&Sdefalias); |
7921925c JB |
3251 | defsubr (&Ssetplist); |
3252 | defsubr (&Ssymbol_value); | |
3253 | defsubr (&Sset); | |
3254 | defsubr (&Sdefault_boundp); | |
3255 | defsubr (&Sdefault_value); | |
3256 | defsubr (&Sset_default); | |
3257 | defsubr (&Ssetq_default); | |
3258 | defsubr (&Smake_variable_buffer_local); | |
3259 | defsubr (&Smake_local_variable); | |
3260 | defsubr (&Skill_local_variable); | |
b0c2d1c6 | 3261 | defsubr (&Smake_variable_frame_local); |
62476adc | 3262 | defsubr (&Slocal_variable_p); |
f4f04cee | 3263 | defsubr (&Slocal_variable_if_set_p); |
6b61353c | 3264 | defsubr (&Svariable_binding_locus); |
c40bb1ba | 3265 | #if 0 /* XXX Remove this. --lorentey */ |
2a42d440 KL |
3266 | defsubr (&Sterminal_local_value); |
3267 | defsubr (&Sset_terminal_local_value); | |
c40bb1ba | 3268 | #endif |
7921925c JB |
3269 | defsubr (&Saref); |
3270 | defsubr (&Saset); | |
f2980264 | 3271 | defsubr (&Snumber_to_string); |
25e40a4b | 3272 | defsubr (&Sstring_to_number); |
7921925c JB |
3273 | defsubr (&Seqlsign); |
3274 | defsubr (&Slss); | |
3275 | defsubr (&Sgtr); | |
3276 | defsubr (&Sleq); | |
3277 | defsubr (&Sgeq); | |
3278 | defsubr (&Sneq); | |
3279 | defsubr (&Szerop); | |
3280 | defsubr (&Splus); | |
3281 | defsubr (&Sminus); | |
3282 | defsubr (&Stimes); | |
3283 | defsubr (&Squo); | |
3284 | defsubr (&Srem); | |
44fa9da5 | 3285 | defsubr (&Smod); |
7921925c JB |
3286 | defsubr (&Smax); |
3287 | defsubr (&Smin); | |
3288 | defsubr (&Slogand); | |
3289 | defsubr (&Slogior); | |
3290 | defsubr (&Slogxor); | |
3291 | defsubr (&Slsh); | |
3292 | defsubr (&Sash); | |
3293 | defsubr (&Sadd1); | |
3294 | defsubr (&Ssub1); | |
3295 | defsubr (&Slognot); | |
6b61353c | 3296 | defsubr (&Sbyteorder); |
6f0e897f | 3297 | defsubr (&Ssubr_arity); |
0fddae66 | 3298 | defsubr (&Ssubr_name); |
8e86942b | 3299 | |
c80bd143 | 3300 | XSYMBOL (Qwholenump)->function = XSYMBOL (Qnatnump)->function; |
e6190b11 | 3301 | |
29208e82 | 3302 | DEFVAR_LISP ("most-positive-fixnum", Vmost_positive_fixnum, |
9d113d9d AS |
3303 | doc: /* The largest value that is representable in a Lisp integer. */); |
3304 | Vmost_positive_fixnum = make_number (MOST_POSITIVE_FIXNUM); | |
d67b4f80 | 3305 | XSYMBOL (intern_c_string ("most-positive-fixnum"))->constant = 1; |
bfb96cb7 | 3306 | |
29208e82 | 3307 | DEFVAR_LISP ("most-negative-fixnum", Vmost_negative_fixnum, |
9d113d9d AS |
3308 | doc: /* The smallest value that is representable in a Lisp integer. */); |
3309 | Vmost_negative_fixnum = make_number (MOST_NEGATIVE_FIXNUM); | |
d67b4f80 | 3310 | XSYMBOL (intern_c_string ("most-negative-fixnum"))->constant = 1; |
7921925c JB |
3311 | } |
3312 | ||
a33ef3ab | 3313 | SIGTYPE |
971de7fb | 3314 | arith_error (int signo) |
7921925c | 3315 | { |
e065a56e | 3316 | sigsetmask (SIGEMPTYMASK); |
7921925c | 3317 | |
333f1b6f | 3318 | SIGNAL_THREAD_CHECK (signo); |
740ef0b5 | 3319 | xsignal0 (Qarith_error); |
7921925c JB |
3320 | } |
3321 | ||
dfcf069d | 3322 | void |
971de7fb | 3323 | init_data (void) |
7921925c JB |
3324 | { |
3325 | /* Don't do this if just dumping out. | |
3326 | We don't want to call `signal' in this case | |
3327 | so that we don't have trouble with dumping | |
3328 | signal-delivering routines in an inconsistent state. */ | |
3329 | #ifndef CANNOT_DUMP | |
3330 | if (!initialized) | |
3331 | return; | |
3332 | #endif /* CANNOT_DUMP */ | |
3333 | signal (SIGFPE, arith_error); | |
7403b5c8 | 3334 | |
7921925c JB |
3335 | #ifdef uts |
3336 | signal (SIGEMT, arith_error); | |
3337 | #endif /* uts */ | |
3338 | } |