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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> |
0ae6bdee PE |
25 | |
26 | #include <intprops.h> | |
27 | ||
7921925c | 28 | #include "lisp.h" |
29eab336 | 29 | #include "puresize.h" |
e6e1f521 | 30 | #include "character.h" |
7921925c | 31 | #include "buffer.h" |
077d751f | 32 | #include "keyboard.h" |
b0c2d1c6 | 33 | #include "frame.h" |
a44804c2 | 34 | #include "syssignal.h" |
256c9c3a | 35 | #include "termhooks.h" /* For FRAME_KBOARD reference in y-or-n-p. */ |
4e6f2626 | 36 | #include "font.h" |
fb8e9847 | 37 | |
93b91208 | 38 | #ifdef STDC_HEADERS |
2f261542 | 39 | #include <float.h> |
93b91208 | 40 | #endif |
defa77b5 | 41 | |
ad8d56b9 PE |
42 | /* If IEEE_FLOATING_POINT isn't defined, default it from FLT_*. */ |
43 | #ifndef IEEE_FLOATING_POINT | |
44 | #if (FLT_RADIX == 2 && FLT_MANT_DIG == 24 \ | |
45 | && FLT_MIN_EXP == -125 && FLT_MAX_EXP == 128) | |
46 | #define IEEE_FLOATING_POINT 1 | |
47 | #else | |
48 | #define IEEE_FLOATING_POINT 0 | |
49 | #endif | |
50 | #endif | |
51 | ||
7921925c | 52 | #include <math.h> |
7921925c | 53 | |
955cbe7b PE |
54 | Lisp_Object Qnil, Qt, Qquote, Qlambda, Qunbound; |
55 | static Lisp_Object Qsubr; | |
7921925c | 56 | Lisp_Object Qerror_conditions, Qerror_message, Qtop_level; |
955cbe7b PE |
57 | Lisp_Object Qerror, Qquit, Qargs_out_of_range; |
58 | static Lisp_Object Qwrong_type_argument; | |
59 | Lisp_Object Qvoid_variable, Qvoid_function; | |
60 | static Lisp_Object Qcyclic_function_indirection; | |
61 | static Lisp_Object Qcyclic_variable_indirection; | |
62 | Lisp_Object Qcircular_list; | |
63 | static Lisp_Object Qsetting_constant; | |
64 | Lisp_Object Qinvalid_read_syntax; | |
7921925c | 65 | Lisp_Object Qinvalid_function, Qwrong_number_of_arguments, Qno_catch; |
3b8819d6 | 66 | Lisp_Object Qend_of_file, Qarith_error, Qmark_inactive; |
7921925c | 67 | Lisp_Object Qbeginning_of_buffer, Qend_of_buffer, Qbuffer_read_only; |
8f9f49d7 | 68 | Lisp_Object Qtext_read_only; |
6b61353c | 69 | |
955cbe7b PE |
70 | Lisp_Object Qintegerp, Qwholenump, Qsymbolp, Qlistp, Qconsp; |
71 | static Lisp_Object Qnatnump; | |
7921925c JB |
72 | Lisp_Object Qstringp, Qarrayp, Qsequencep, Qbufferp; |
73 | Lisp_Object Qchar_or_string_p, Qmarkerp, Qinteger_or_marker_p, Qvectorp; | |
955cbe7b PE |
74 | Lisp_Object Qbuffer_or_string_p; |
75 | static Lisp_Object Qkeywordp, Qboundp; | |
76 | Lisp_Object Qfboundp; | |
7f0edce7 | 77 | Lisp_Object Qchar_table_p, Qvector_or_char_table_p; |
39bcc759 | 78 | |
7921925c | 79 | Lisp_Object Qcdr; |
955cbe7b | 80 | static Lisp_Object Qad_advice_info, Qad_activate_internal; |
7921925c | 81 | |
6315e761 RS |
82 | Lisp_Object Qrange_error, Qdomain_error, Qsingularity_error; |
83 | Lisp_Object Qoverflow_error, Qunderflow_error; | |
84 | ||
464f8898 | 85 | Lisp_Object Qfloatp; |
7921925c | 86 | Lisp_Object Qnumberp, Qnumber_or_marker_p; |
7921925c | 87 | |
6b61353c KH |
88 | Lisp_Object Qinteger; |
89 | static Lisp_Object Qsymbol, Qstring, Qcons, Qmarker, Qoverlay; | |
e6cba650 DN |
90 | Lisp_Object Qwindow; |
91 | static Lisp_Object Qfloat, Qwindow_configuration; | |
955cbe7b | 92 | static Lisp_Object Qprocess; |
876c194c | 93 | static Lisp_Object Qcompiled_function, Qbuffer, Qframe, Qvector; |
81dc5de5 | 94 | static Lisp_Object Qchar_table, Qbool_vector, Qhash_table; |
6f0e897f | 95 | static Lisp_Object Qsubrp, Qmany, Qunevalled; |
4e6f2626 | 96 | Lisp_Object Qfont_spec, Qfont_entity, Qfont_object; |
39bcc759 | 97 | |
3860280a CY |
98 | Lisp_Object Qinteractive_form; |
99 | ||
ce5b453a | 100 | static void swap_in_symval_forwarding (struct Lisp_Symbol *, struct Lisp_Buffer_Local_Value *); |
d02eeab3 | 101 | |
13d95cc0 | 102 | |
7921925c | 103 | Lisp_Object |
971de7fb | 104 | wrong_type_argument (register Lisp_Object predicate, register Lisp_Object value) |
7921925c | 105 | { |
2de9f71c SM |
106 | /* If VALUE is not even a valid Lisp object, we'd want to abort here |
107 | where we can get a backtrace showing where it came from. We used | |
108 | to try and do that by checking the tagbits, but nowadays all | |
109 | tagbits are potentially valid. */ | |
110 | /* if ((unsigned int) XTYPE (value) >= Lisp_Type_Limit) | |
111 | * abort (); */ | |
e1351ff7 | 112 | |
740ef0b5 | 113 | xsignal2 (Qwrong_type_argument, predicate, value); |
7921925c JB |
114 | } |
115 | ||
dfcf069d | 116 | void |
971de7fb | 117 | pure_write_error (void) |
7921925c JB |
118 | { |
119 | error ("Attempt to modify read-only object"); | |
120 | } | |
121 | ||
122 | void | |
971de7fb | 123 | args_out_of_range (Lisp_Object a1, Lisp_Object a2) |
7921925c | 124 | { |
740ef0b5 | 125 | xsignal2 (Qargs_out_of_range, a1, a2); |
7921925c JB |
126 | } |
127 | ||
128 | void | |
971de7fb | 129 | args_out_of_range_3 (Lisp_Object a1, Lisp_Object a2, Lisp_Object a3) |
7921925c | 130 | { |
740ef0b5 | 131 | xsignal3 (Qargs_out_of_range, a1, a2, a3); |
7921925c JB |
132 | } |
133 | ||
7921925c JB |
134 | \f |
135 | /* Data type predicates */ | |
136 | ||
137 | DEFUN ("eq", Feq, Seq, 2, 2, 0, | |
8c1a1077 | 138 | doc: /* Return t if the two args are the same Lisp object. */) |
5842a27b | 139 | (Lisp_Object obj1, Lisp_Object obj2) |
7921925c JB |
140 | { |
141 | if (EQ (obj1, obj2)) | |
142 | return Qt; | |
143 | return Qnil; | |
144 | } | |
145 | ||
8c1a1077 PJ |
146 | DEFUN ("null", Fnull, Snull, 1, 1, 0, |
147 | doc: /* Return t if OBJECT is nil. */) | |
5842a27b | 148 | (Lisp_Object object) |
7921925c | 149 | { |
39bcc759 | 150 | if (NILP (object)) |
7921925c JB |
151 | return Qt; |
152 | return Qnil; | |
153 | } | |
154 | ||
39bcc759 | 155 | DEFUN ("type-of", Ftype_of, Stype_of, 1, 1, 0, |
8c1a1077 PJ |
156 | doc: /* Return a symbol representing the type of OBJECT. |
157 | The symbol returned names the object's basic type; | |
158 | for example, (type-of 1) returns `integer'. */) | |
5842a27b | 159 | (Lisp_Object object) |
39bcc759 | 160 | { |
8e50cc2d | 161 | switch (XTYPE (object)) |
39bcc759 | 162 | { |
2de9f71c | 163 | case_Lisp_Int: |
39bcc759 RS |
164 | return Qinteger; |
165 | ||
166 | case Lisp_Symbol: | |
167 | return Qsymbol; | |
168 | ||
169 | case Lisp_String: | |
170 | return Qstring; | |
171 | ||
172 | case Lisp_Cons: | |
173 | return Qcons; | |
174 | ||
175 | case Lisp_Misc: | |
324a6eef | 176 | switch (XMISCTYPE (object)) |
39bcc759 RS |
177 | { |
178 | case Lisp_Misc_Marker: | |
179 | return Qmarker; | |
180 | case Lisp_Misc_Overlay: | |
181 | return Qoverlay; | |
182 | case Lisp_Misc_Float: | |
183 | return Qfloat; | |
184 | } | |
185 | abort (); | |
186 | ||
187 | case Lisp_Vectorlike: | |
8e50cc2d | 188 | if (WINDOW_CONFIGURATIONP (object)) |
39bcc759 | 189 | return Qwindow_configuration; |
8e50cc2d | 190 | if (PROCESSP (object)) |
39bcc759 | 191 | return Qprocess; |
8e50cc2d | 192 | if (WINDOWP (object)) |
39bcc759 | 193 | return Qwindow; |
8e50cc2d | 194 | if (SUBRP (object)) |
39bcc759 | 195 | return Qsubr; |
876c194c SM |
196 | if (COMPILEDP (object)) |
197 | return Qcompiled_function; | |
8e50cc2d | 198 | if (BUFFERP (object)) |
39bcc759 | 199 | return Qbuffer; |
8e50cc2d | 200 | if (CHAR_TABLE_P (object)) |
fc67d5be | 201 | return Qchar_table; |
8e50cc2d | 202 | if (BOOL_VECTOR_P (object)) |
fc67d5be | 203 | return Qbool_vector; |
8e50cc2d | 204 | if (FRAMEP (object)) |
39bcc759 | 205 | return Qframe; |
8e50cc2d | 206 | if (HASH_TABLE_P (object)) |
81dc5de5 | 207 | return Qhash_table; |
4e6f2626 CY |
208 | if (FONT_SPEC_P (object)) |
209 | return Qfont_spec; | |
210 | if (FONT_ENTITY_P (object)) | |
211 | return Qfont_entity; | |
212 | if (FONT_OBJECT_P (object)) | |
213 | return Qfont_object; | |
39bcc759 RS |
214 | return Qvector; |
215 | ||
39bcc759 RS |
216 | case Lisp_Float: |
217 | return Qfloat; | |
39bcc759 RS |
218 | |
219 | default: | |
220 | abort (); | |
221 | } | |
222 | } | |
223 | ||
8c1a1077 PJ |
224 | DEFUN ("consp", Fconsp, Sconsp, 1, 1, 0, |
225 | doc: /* Return t if OBJECT is a cons cell. */) | |
5842a27b | 226 | (Lisp_Object object) |
7921925c | 227 | { |
39bcc759 | 228 | if (CONSP (object)) |
7921925c JB |
229 | return Qt; |
230 | return Qnil; | |
231 | } | |
232 | ||
25638b07 | 233 | DEFUN ("atom", Fatom, Satom, 1, 1, 0, |
8c1a1077 | 234 | doc: /* Return t if OBJECT is not a cons cell. This includes nil. */) |
5842a27b | 235 | (Lisp_Object object) |
7921925c | 236 | { |
39bcc759 | 237 | if (CONSP (object)) |
7921925c JB |
238 | return Qnil; |
239 | return Qt; | |
240 | } | |
241 | ||
25638b07 | 242 | DEFUN ("listp", Flistp, Slistp, 1, 1, 0, |
4cdcdcc9 LT |
243 | doc: /* Return t if OBJECT is a list, that is, a cons cell or nil. |
244 | Otherwise, return nil. */) | |
5842a27b | 245 | (Lisp_Object object) |
7921925c | 246 | { |
39bcc759 | 247 | if (CONSP (object) || NILP (object)) |
7921925c JB |
248 | return Qt; |
249 | return Qnil; | |
250 | } | |
251 | ||
25638b07 | 252 | DEFUN ("nlistp", Fnlistp, Snlistp, 1, 1, 0, |
8c1a1077 | 253 | doc: /* Return t if OBJECT is not a list. Lists include nil. */) |
5842a27b | 254 | (Lisp_Object object) |
7921925c | 255 | { |
39bcc759 | 256 | if (CONSP (object) || NILP (object)) |
7921925c JB |
257 | return Qnil; |
258 | return Qt; | |
259 | } | |
260 | \f | |
25638b07 | 261 | DEFUN ("symbolp", Fsymbolp, Ssymbolp, 1, 1, 0, |
8c1a1077 | 262 | doc: /* Return t if OBJECT is a symbol. */) |
5842a27b | 263 | (Lisp_Object object) |
7921925c | 264 | { |
39bcc759 | 265 | if (SYMBOLP (object)) |
7921925c JB |
266 | return Qt; |
267 | return Qnil; | |
268 | } | |
269 | ||
cda9b832 DL |
270 | /* Define this in C to avoid unnecessarily consing up the symbol |
271 | name. */ | |
272 | DEFUN ("keywordp", Fkeywordp, Skeywordp, 1, 1, 0, | |
8c1a1077 PJ |
273 | doc: /* Return t if OBJECT is a keyword. |
274 | This means that it is a symbol with a print name beginning with `:' | |
275 | interned in the initial obarray. */) | |
5842a27b | 276 | (Lisp_Object object) |
cda9b832 DL |
277 | { |
278 | if (SYMBOLP (object) | |
d5db4077 | 279 | && SREF (SYMBOL_NAME (object), 0) == ':' |
f35d5bad | 280 | && SYMBOL_INTERNED_IN_INITIAL_OBARRAY_P (object)) |
cda9b832 DL |
281 | return Qt; |
282 | return Qnil; | |
283 | } | |
284 | ||
25638b07 | 285 | DEFUN ("vectorp", Fvectorp, Svectorp, 1, 1, 0, |
8c1a1077 | 286 | doc: /* Return t if OBJECT is a vector. */) |
5842a27b | 287 | (Lisp_Object object) |
7921925c | 288 | { |
39bcc759 | 289 | if (VECTORP (object)) |
7921925c JB |
290 | return Qt; |
291 | return Qnil; | |
292 | } | |
293 | ||
25638b07 | 294 | DEFUN ("stringp", Fstringp, Sstringp, 1, 1, 0, |
8c1a1077 | 295 | doc: /* Return t if OBJECT is a string. */) |
5842a27b | 296 | (Lisp_Object object) |
7921925c | 297 | { |
39bcc759 | 298 | if (STRINGP (object)) |
7921925c JB |
299 | return Qt; |
300 | return Qnil; | |
301 | } | |
302 | ||
25638b07 | 303 | DEFUN ("multibyte-string-p", Fmultibyte_string_p, Smultibyte_string_p, |
8c1a1077 PJ |
304 | 1, 1, 0, |
305 | doc: /* Return t if OBJECT is a multibyte string. */) | |
5842a27b | 306 | (Lisp_Object object) |
25638b07 RS |
307 | { |
308 | if (STRINGP (object) && STRING_MULTIBYTE (object)) | |
309 | return Qt; | |
310 | return Qnil; | |
311 | } | |
312 | ||
313 | DEFUN ("char-table-p", Fchar_table_p, Schar_table_p, 1, 1, 0, | |
8c1a1077 | 314 | doc: /* Return t if OBJECT is a char-table. */) |
5842a27b | 315 | (Lisp_Object object) |
4d276982 RS |
316 | { |
317 | if (CHAR_TABLE_P (object)) | |
318 | return Qt; | |
319 | return Qnil; | |
320 | } | |
321 | ||
7f0edce7 RS |
322 | DEFUN ("vector-or-char-table-p", Fvector_or_char_table_p, |
323 | Svector_or_char_table_p, 1, 1, 0, | |
8c1a1077 | 324 | doc: /* Return t if OBJECT is a char-table or vector. */) |
5842a27b | 325 | (Lisp_Object object) |
7f0edce7 RS |
326 | { |
327 | if (VECTORP (object) || CHAR_TABLE_P (object)) | |
328 | return Qt; | |
329 | return Qnil; | |
330 | } | |
331 | ||
8c1a1077 PJ |
332 | DEFUN ("bool-vector-p", Fbool_vector_p, Sbool_vector_p, 1, 1, 0, |
333 | doc: /* Return t if OBJECT is a bool-vector. */) | |
5842a27b | 334 | (Lisp_Object object) |
4d276982 RS |
335 | { |
336 | if (BOOL_VECTOR_P (object)) | |
337 | return Qt; | |
338 | return Qnil; | |
339 | } | |
340 | ||
8c1a1077 PJ |
341 | DEFUN ("arrayp", Farrayp, Sarrayp, 1, 1, 0, |
342 | doc: /* Return t if OBJECT is an array (string or vector). */) | |
5842a27b | 343 | (Lisp_Object object) |
7921925c | 344 | { |
0c64a8cd | 345 | if (ARRAYP (object)) |
7921925c JB |
346 | return Qt; |
347 | return Qnil; | |
348 | } | |
349 | ||
350 | DEFUN ("sequencep", Fsequencep, Ssequencep, 1, 1, 0, | |
8c1a1077 | 351 | doc: /* Return t if OBJECT is a sequence (list or array). */) |
5842a27b | 352 | (register Lisp_Object object) |
7921925c | 353 | { |
0c64a8cd | 354 | if (CONSP (object) || NILP (object) || ARRAYP (object)) |
7921925c JB |
355 | return Qt; |
356 | return Qnil; | |
357 | } | |
358 | ||
8c1a1077 PJ |
359 | DEFUN ("bufferp", Fbufferp, Sbufferp, 1, 1, 0, |
360 | doc: /* Return t if OBJECT is an editor buffer. */) | |
5842a27b | 361 | (Lisp_Object object) |
7921925c | 362 | { |
39bcc759 | 363 | if (BUFFERP (object)) |
7921925c JB |
364 | return Qt; |
365 | return Qnil; | |
366 | } | |
367 | ||
8c1a1077 PJ |
368 | DEFUN ("markerp", Fmarkerp, Smarkerp, 1, 1, 0, |
369 | doc: /* Return t if OBJECT is a marker (editor pointer). */) | |
5842a27b | 370 | (Lisp_Object object) |
7921925c | 371 | { |
39bcc759 | 372 | if (MARKERP (object)) |
7921925c JB |
373 | return Qt; |
374 | return Qnil; | |
375 | } | |
376 | ||
8c1a1077 PJ |
377 | DEFUN ("subrp", Fsubrp, Ssubrp, 1, 1, 0, |
378 | doc: /* Return t if OBJECT is a built-in function. */) | |
5842a27b | 379 | (Lisp_Object object) |
7921925c | 380 | { |
39bcc759 | 381 | if (SUBRP (object)) |
7921925c JB |
382 | return Qt; |
383 | return Qnil; | |
384 | } | |
385 | ||
dbc4e1c1 | 386 | DEFUN ("byte-code-function-p", Fbyte_code_function_p, Sbyte_code_function_p, |
8c1a1077 PJ |
387 | 1, 1, 0, |
388 | doc: /* Return t if OBJECT is a byte-compiled function object. */) | |
5842a27b | 389 | (Lisp_Object object) |
7921925c | 390 | { |
39bcc759 | 391 | if (COMPILEDP (object)) |
7921925c JB |
392 | return Qt; |
393 | return Qnil; | |
394 | } | |
395 | ||
0321d75c | 396 | DEFUN ("char-or-string-p", Fchar_or_string_p, Schar_or_string_p, 1, 1, 0, |
8637f5ee | 397 | doc: /* Return t if OBJECT is a character or a string. */) |
5842a27b | 398 | (register Lisp_Object object) |
7921925c | 399 | { |
cfd70f33 | 400 | if (CHARACTERP (object) || STRINGP (object)) |
7921925c JB |
401 | return Qt; |
402 | return Qnil; | |
403 | } | |
404 | \f | |
8c1a1077 PJ |
405 | DEFUN ("integerp", Fintegerp, Sintegerp, 1, 1, 0, |
406 | doc: /* Return t if OBJECT is an integer. */) | |
5842a27b | 407 | (Lisp_Object object) |
7921925c | 408 | { |
39bcc759 | 409 | if (INTEGERP (object)) |
7921925c JB |
410 | return Qt; |
411 | return Qnil; | |
412 | } | |
413 | ||
464f8898 | 414 | DEFUN ("integer-or-marker-p", Finteger_or_marker_p, Sinteger_or_marker_p, 1, 1, 0, |
8c1a1077 | 415 | doc: /* Return t if OBJECT is an integer or a marker (editor pointer). */) |
5842a27b | 416 | (register Lisp_Object object) |
7921925c | 417 | { |
39bcc759 | 418 | if (MARKERP (object) || INTEGERP (object)) |
7921925c JB |
419 | return Qt; |
420 | return Qnil; | |
421 | } | |
422 | ||
0321d75c | 423 | DEFUN ("natnump", Fnatnump, Snatnump, 1, 1, 0, |
8c1a1077 | 424 | doc: /* Return t if OBJECT is a nonnegative integer. */) |
5842a27b | 425 | (Lisp_Object object) |
7921925c | 426 | { |
39bcc759 | 427 | if (NATNUMP (object)) |
7921925c JB |
428 | return Qt; |
429 | return Qnil; | |
430 | } | |
431 | ||
432 | DEFUN ("numberp", Fnumberp, Snumberp, 1, 1, 0, | |
8c1a1077 | 433 | doc: /* Return t if OBJECT is a number (floating point or integer). */) |
5842a27b | 434 | (Lisp_Object object) |
7921925c | 435 | { |
39bcc759 | 436 | if (NUMBERP (object)) |
7921925c | 437 | return Qt; |
dbc4e1c1 JB |
438 | else |
439 | return Qnil; | |
7921925c JB |
440 | } |
441 | ||
442 | DEFUN ("number-or-marker-p", Fnumber_or_marker_p, | |
443 | Snumber_or_marker_p, 1, 1, 0, | |
8c1a1077 | 444 | doc: /* Return t if OBJECT is a number or a marker. */) |
5842a27b | 445 | (Lisp_Object object) |
7921925c | 446 | { |
39bcc759 | 447 | if (NUMBERP (object) || MARKERP (object)) |
7921925c JB |
448 | return Qt; |
449 | return Qnil; | |
450 | } | |
464f8898 | 451 | |
464f8898 | 452 | DEFUN ("floatp", Ffloatp, Sfloatp, 1, 1, 0, |
8c1a1077 | 453 | doc: /* Return t if OBJECT is a floating point number. */) |
5842a27b | 454 | (Lisp_Object object) |
464f8898 | 455 | { |
39bcc759 | 456 | if (FLOATP (object)) |
464f8898 RS |
457 | return Qt; |
458 | return Qnil; | |
459 | } | |
cc94f3b2 | 460 | |
7921925c JB |
461 | \f |
462 | /* Extract and set components of lists */ | |
463 | ||
a7ca3326 | 464 | DEFUN ("car", Fcar, Scar, 1, 1, 0, |
8c1a1077 | 465 | doc: /* Return the car of LIST. If arg is nil, return nil. |
9701c742 LT |
466 | Error if arg is not nil and not a cons cell. See also `car-safe'. |
467 | ||
da46c5be LT |
468 | See Info node `(elisp)Cons Cells' for a discussion of related basic |
469 | Lisp concepts such as car, cdr, cons cell and list. */) | |
5842a27b | 470 | (register Lisp_Object list) |
7921925c | 471 | { |
0c64a8cd | 472 | return CAR (list); |
7921925c JB |
473 | } |
474 | ||
a7ca3326 | 475 | DEFUN ("car-safe", Fcar_safe, Scar_safe, 1, 1, 0, |
8c1a1077 | 476 | doc: /* Return the car of OBJECT if it is a cons cell, or else nil. */) |
5842a27b | 477 | (Lisp_Object object) |
7921925c | 478 | { |
0c64a8cd | 479 | return CAR_SAFE (object); |
7921925c JB |
480 | } |
481 | ||
a7ca3326 | 482 | DEFUN ("cdr", Fcdr, Scdr, 1, 1, 0, |
8c1a1077 | 483 | doc: /* Return the cdr of LIST. If arg is nil, return nil. |
9701c742 LT |
484 | Error if arg is not nil and not a cons cell. See also `cdr-safe'. |
485 | ||
da46c5be LT |
486 | See Info node `(elisp)Cons Cells' for a discussion of related basic |
487 | Lisp concepts such as cdr, car, cons cell and list. */) | |
5842a27b | 488 | (register Lisp_Object list) |
7921925c | 489 | { |
0c64a8cd | 490 | return CDR (list); |
7921925c JB |
491 | } |
492 | ||
a7ca3326 | 493 | DEFUN ("cdr-safe", Fcdr_safe, Scdr_safe, 1, 1, 0, |
8c1a1077 | 494 | doc: /* Return the cdr of OBJECT if it is a cons cell, or else nil. */) |
5842a27b | 495 | (Lisp_Object object) |
7921925c | 496 | { |
0c64a8cd | 497 | return CDR_SAFE (object); |
7921925c JB |
498 | } |
499 | ||
a7ca3326 | 500 | DEFUN ("setcar", Fsetcar, Ssetcar, 2, 2, 0, |
8c1a1077 | 501 | doc: /* Set the car of CELL to be NEWCAR. Returns NEWCAR. */) |
5842a27b | 502 | (register Lisp_Object cell, Lisp_Object newcar) |
7921925c | 503 | { |
0c64a8cd | 504 | CHECK_CONS (cell); |
7921925c | 505 | CHECK_IMPURE (cell); |
f3fbd155 | 506 | XSETCAR (cell, newcar); |
7921925c JB |
507 | return newcar; |
508 | } | |
509 | ||
a7ca3326 | 510 | DEFUN ("setcdr", Fsetcdr, Ssetcdr, 2, 2, 0, |
8c1a1077 | 511 | doc: /* Set the cdr of CELL to be NEWCDR. Returns NEWCDR. */) |
5842a27b | 512 | (register Lisp_Object cell, Lisp_Object newcdr) |
7921925c | 513 | { |
0c64a8cd | 514 | CHECK_CONS (cell); |
7921925c | 515 | CHECK_IMPURE (cell); |
f3fbd155 | 516 | XSETCDR (cell, newcdr); |
7921925c JB |
517 | return newcdr; |
518 | } | |
519 | \f | |
520 | /* Extract and set components of symbols */ | |
521 | ||
a7ca3326 | 522 | DEFUN ("boundp", Fboundp, Sboundp, 1, 1, 0, |
8c1a1077 | 523 | doc: /* Return t if SYMBOL's value is not void. */) |
5842a27b | 524 | (register Lisp_Object symbol) |
7921925c JB |
525 | { |
526 | Lisp_Object valcontents; | |
ce5b453a | 527 | struct Lisp_Symbol *sym; |
b7826503 | 528 | CHECK_SYMBOL (symbol); |
ce5b453a | 529 | sym = XSYMBOL (symbol); |
7921925c | 530 | |
ce5b453a SM |
531 | start: |
532 | switch (sym->redirect) | |
533 | { | |
534 | case SYMBOL_PLAINVAL: valcontents = SYMBOL_VAL (sym); break; | |
535 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
536 | case SYMBOL_LOCALIZED: | |
537 | { | |
538 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
539 | if (blv->fwd) | |
540 | /* In set_internal, we un-forward vars when their value is | |
541 | set to Qunbound. */ | |
542 | return Qt; | |
543 | else | |
544 | { | |
545 | swap_in_symval_forwarding (sym, blv); | |
546 | valcontents = BLV_VALUE (blv); | |
547 | } | |
548 | break; | |
549 | } | |
550 | case SYMBOL_FORWARDED: | |
551 | /* In set_internal, we un-forward vars when their value is | |
552 | set to Qunbound. */ | |
553 | return Qt; | |
554 | default: abort (); | |
555 | } | |
7921925c | 556 | |
1bfcade3 | 557 | return (EQ (valcontents, Qunbound) ? Qnil : Qt); |
7921925c JB |
558 | } |
559 | ||
a7ca3326 | 560 | DEFUN ("fboundp", Ffboundp, Sfboundp, 1, 1, 0, |
8c1a1077 | 561 | doc: /* Return t if SYMBOL's function definition is not void. */) |
5842a27b | 562 | (register Lisp_Object symbol) |
7921925c | 563 | { |
b7826503 | 564 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 565 | return (EQ (XSYMBOL (symbol)->function, Qunbound) ? Qnil : Qt); |
7921925c JB |
566 | } |
567 | ||
8c1a1077 | 568 | DEFUN ("makunbound", Fmakunbound, Smakunbound, 1, 1, 0, |
bfb96cb7 FP |
569 | doc: /* Make SYMBOL's value be void. |
570 | Return SYMBOL. */) | |
5842a27b | 571 | (register Lisp_Object symbol) |
7921925c | 572 | { |
b7826503 | 573 | CHECK_SYMBOL (symbol); |
64ec26d6 | 574 | if (SYMBOL_CONSTANT_P (symbol)) |
740ef0b5 | 575 | xsignal1 (Qsetting_constant, symbol); |
d9c2a0f2 EN |
576 | Fset (symbol, Qunbound); |
577 | return symbol; | |
7921925c JB |
578 | } |
579 | ||
8c1a1077 | 580 | DEFUN ("fmakunbound", Ffmakunbound, Sfmakunbound, 1, 1, 0, |
bfb96cb7 FP |
581 | doc: /* Make SYMBOL's function definition be void. |
582 | Return SYMBOL. */) | |
5842a27b | 583 | (register Lisp_Object symbol) |
7921925c | 584 | { |
b7826503 | 585 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 586 | if (NILP (symbol) || EQ (symbol, Qt)) |
740ef0b5 | 587 | xsignal1 (Qsetting_constant, symbol); |
d9c2a0f2 EN |
588 | XSYMBOL (symbol)->function = Qunbound; |
589 | return symbol; | |
7921925c JB |
590 | } |
591 | ||
a7ca3326 | 592 | DEFUN ("symbol-function", Fsymbol_function, Ssymbol_function, 1, 1, 0, |
8c1a1077 | 593 | doc: /* Return SYMBOL's function definition. Error if that is void. */) |
5842a27b | 594 | (register Lisp_Object symbol) |
7921925c | 595 | { |
b7826503 | 596 | CHECK_SYMBOL (symbol); |
740ef0b5 KS |
597 | if (!EQ (XSYMBOL (symbol)->function, Qunbound)) |
598 | return XSYMBOL (symbol)->function; | |
599 | xsignal1 (Qvoid_function, symbol); | |
7921925c JB |
600 | } |
601 | ||
8c1a1077 PJ |
602 | DEFUN ("symbol-plist", Fsymbol_plist, Ssymbol_plist, 1, 1, 0, |
603 | doc: /* Return SYMBOL's property list. */) | |
5842a27b | 604 | (register Lisp_Object symbol) |
7921925c | 605 | { |
b7826503 | 606 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 607 | return XSYMBOL (symbol)->plist; |
7921925c JB |
608 | } |
609 | ||
a7ca3326 | 610 | DEFUN ("symbol-name", Fsymbol_name, Ssymbol_name, 1, 1, 0, |
8c1a1077 | 611 | doc: /* Return SYMBOL's name, a string. */) |
5842a27b | 612 | (register Lisp_Object symbol) |
7921925c JB |
613 | { |
614 | register Lisp_Object name; | |
615 | ||
b7826503 | 616 | CHECK_SYMBOL (symbol); |
84023177 | 617 | name = SYMBOL_NAME (symbol); |
7921925c JB |
618 | return name; |
619 | } | |
620 | ||
a7ca3326 | 621 | DEFUN ("fset", Ffset, Sfset, 2, 2, 0, |
8c1a1077 | 622 | doc: /* Set SYMBOL's function definition to DEFINITION, and return DEFINITION. */) |
5842a27b | 623 | (register Lisp_Object symbol, Lisp_Object definition) |
d9c2a0f2 | 624 | { |
764ea377 JB |
625 | register Lisp_Object function; |
626 | ||
b7826503 | 627 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 628 | if (NILP (symbol) || EQ (symbol, Qt)) |
740ef0b5 | 629 | xsignal1 (Qsetting_constant, symbol); |
764ea377 JB |
630 | |
631 | function = XSYMBOL (symbol)->function; | |
632 | ||
633 | if (!NILP (Vautoload_queue) && !EQ (function, Qunbound)) | |
634 | Vautoload_queue = Fcons (Fcons (symbol, function), Vautoload_queue); | |
635 | ||
636 | if (CONSP (function) && EQ (XCAR (function), Qautoload)) | |
637 | Fput (symbol, Qautoload, XCDR (function)); | |
638 | ||
8c0b5540 | 639 | XSYMBOL (symbol)->function = definition; |
f845f2c9 | 640 | /* Handle automatic advice activation */ |
d9c2a0f2 | 641 | if (CONSP (XSYMBOL (symbol)->plist) && !NILP (Fget (symbol, Qad_advice_info))) |
f845f2c9 | 642 | { |
c1307a23 | 643 | call2 (Qad_activate_internal, symbol, Qnil); |
8c0b5540 | 644 | definition = XSYMBOL (symbol)->function; |
f845f2c9 | 645 | } |
8c0b5540 | 646 | return definition; |
7921925c JB |
647 | } |
648 | ||
d2fde41d | 649 | DEFUN ("defalias", Fdefalias, Sdefalias, 2, 3, 0, |
8c1a1077 | 650 | doc: /* Set SYMBOL's function definition to DEFINITION, and return DEFINITION. |
96143227 RS |
651 | Associates the function with the current load file, if any. |
652 | The optional third argument DOCSTRING specifies the documentation string | |
653 | for SYMBOL; if it is omitted or nil, SYMBOL uses the documentation string | |
654 | determined by DEFINITION. */) | |
5842a27b | 655 | (register Lisp_Object symbol, Lisp_Object definition, Lisp_Object docstring) |
fc08c367 | 656 | { |
8a658a52 | 657 | CHECK_SYMBOL (symbol); |
894f6538 RS |
658 | if (CONSP (XSYMBOL (symbol)->function) |
659 | && EQ (XCAR (XSYMBOL (symbol)->function), Qautoload)) | |
660 | LOADHIST_ATTACH (Fcons (Qt, symbol)); | |
32f532b7 | 661 | definition = Ffset (symbol, definition); |
62a29071 | 662 | LOADHIST_ATTACH (Fcons (Qdefun, symbol)); |
d2fde41d SM |
663 | if (!NILP (docstring)) |
664 | Fput (symbol, Qfunction_documentation, docstring); | |
73e0d965 | 665 | return definition; |
fc08c367 RS |
666 | } |
667 | ||
7921925c | 668 | DEFUN ("setplist", Fsetplist, Ssetplist, 2, 2, 0, |
6b61353c | 669 | doc: /* Set SYMBOL's property list to NEWPLIST, and return NEWPLIST. */) |
5842a27b | 670 | (register Lisp_Object symbol, Lisp_Object newplist) |
7921925c | 671 | { |
b7826503 | 672 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 673 | XSYMBOL (symbol)->plist = newplist; |
7921925c JB |
674 | return newplist; |
675 | } | |
ffd56f97 | 676 | |
6f0e897f | 677 | DEFUN ("subr-arity", Fsubr_arity, Ssubr_arity, 1, 1, 0, |
8c1a1077 PJ |
678 | doc: /* Return minimum and maximum number of args allowed for SUBR. |
679 | SUBR must be a built-in function. | |
680 | The returned value is a pair (MIN . MAX). MIN is the minimum number | |
681 | of args. MAX is the maximum number or the symbol `many', for a | |
682 | function with `&rest' args, or `unevalled' for a special form. */) | |
5842a27b | 683 | (Lisp_Object subr) |
6f0e897f DL |
684 | { |
685 | short minargs, maxargs; | |
0c64a8cd | 686 | CHECK_SUBR (subr); |
6f0e897f DL |
687 | minargs = XSUBR (subr)->min_args; |
688 | maxargs = XSUBR (subr)->max_args; | |
689 | if (maxargs == MANY) | |
690 | return Fcons (make_number (minargs), Qmany); | |
691 | else if (maxargs == UNEVALLED) | |
692 | return Fcons (make_number (minargs), Qunevalled); | |
693 | else | |
694 | return Fcons (make_number (minargs), make_number (maxargs)); | |
695 | } | |
696 | ||
0fddae66 SM |
697 | DEFUN ("subr-name", Fsubr_name, Ssubr_name, 1, 1, 0, |
698 | doc: /* Return name of subroutine SUBR. | |
699 | SUBR must be a built-in function. */) | |
5842a27b | 700 | (Lisp_Object subr) |
0fddae66 SM |
701 | { |
702 | const char *name; | |
0c64a8cd | 703 | CHECK_SUBR (subr); |
0fddae66 SM |
704 | name = XSUBR (subr)->symbol_name; |
705 | return make_string (name, strlen (name)); | |
706 | } | |
707 | ||
a7ca3326 | 708 | DEFUN ("interactive-form", Finteractive_form, Sinteractive_form, 1, 1, 0, |
6b61353c | 709 | doc: /* Return the interactive form of CMD or nil if none. |
df133612 LT |
710 | If CMD is not a command, the return value is nil. |
711 | Value, if non-nil, is a list \(interactive SPEC). */) | |
5842a27b | 712 | (Lisp_Object cmd) |
cc515226 | 713 | { |
c4f46926 | 714 | Lisp_Object fun = indirect_function (cmd); /* Check cycles. */ |
764ea377 | 715 | |
c4f46926 SM |
716 | if (NILP (fun) || EQ (fun, Qunbound)) |
717 | return Qnil; | |
718 | ||
719 | /* Use an `interactive-form' property if present, analogous to the | |
720 | function-documentation property. */ | |
721 | fun = cmd; | |
722 | while (SYMBOLP (fun)) | |
723 | { | |
3860280a | 724 | Lisp_Object tmp = Fget (fun, Qinteractive_form); |
c4f46926 SM |
725 | if (!NILP (tmp)) |
726 | return tmp; | |
727 | else | |
728 | fun = Fsymbol_function (fun); | |
729 | } | |
6b61353c KH |
730 | |
731 | if (SUBRP (fun)) | |
732 | { | |
eec47d6b | 733 | const char *spec = XSUBR (fun)->intspec; |
8a6d230a MC |
734 | if (spec) |
735 | return list2 (Qinteractive, | |
736 | (*spec != '(') ? build_string (spec) : | |
737 | Fcar (Fread_from_string (build_string (spec), Qnil, Qnil))); | |
6b61353c KH |
738 | } |
739 | else if (COMPILEDP (fun)) | |
740 | { | |
741 | if ((ASIZE (fun) & PSEUDOVECTOR_SIZE_MASK) > COMPILED_INTERACTIVE) | |
742 | return list2 (Qinteractive, AREF (fun, COMPILED_INTERACTIVE)); | |
743 | } | |
744 | else if (CONSP (fun)) | |
745 | { | |
746 | Lisp_Object funcar = XCAR (fun); | |
b38b1ec0 | 747 | if (EQ (funcar, Qclosure)) |
23aba0ea SM |
748 | return Fassq (Qinteractive, Fcdr (Fcdr (XCDR (fun)))); |
749 | else if (EQ (funcar, Qlambda)) | |
6b61353c KH |
750 | return Fassq (Qinteractive, Fcdr (XCDR (fun))); |
751 | else if (EQ (funcar, Qautoload)) | |
752 | { | |
753 | struct gcpro gcpro1; | |
754 | GCPRO1 (cmd); | |
755 | do_autoload (fun, cmd); | |
756 | UNGCPRO; | |
757 | return Finteractive_form (cmd); | |
758 | } | |
759 | } | |
cc515226 GM |
760 | return Qnil; |
761 | } | |
762 | ||
7921925c | 763 | \f |
f35d5bad GM |
764 | /*********************************************************************** |
765 | Getting and Setting Values of Symbols | |
766 | ***********************************************************************/ | |
767 | ||
768 | /* Return the symbol holding SYMBOL's value. Signal | |
769 | `cyclic-variable-indirection' if SYMBOL's chain of variable | |
770 | indirections contains a loop. */ | |
771 | ||
ad97b375 | 772 | struct Lisp_Symbol * |
971de7fb | 773 | indirect_variable (struct Lisp_Symbol *symbol) |
f35d5bad | 774 | { |
ad97b375 | 775 | struct Lisp_Symbol *tortoise, *hare; |
f35d5bad GM |
776 | |
777 | hare = tortoise = symbol; | |
778 | ||
ce5b453a | 779 | while (hare->redirect == SYMBOL_VARALIAS) |
f35d5bad | 780 | { |
ce5b453a SM |
781 | hare = SYMBOL_ALIAS (hare); |
782 | if (hare->redirect != SYMBOL_VARALIAS) | |
f35d5bad | 783 | break; |
bfb96cb7 | 784 | |
ce5b453a SM |
785 | hare = SYMBOL_ALIAS (hare); |
786 | tortoise = SYMBOL_ALIAS (tortoise); | |
f35d5bad | 787 | |
ad97b375 SM |
788 | if (hare == tortoise) |
789 | { | |
790 | Lisp_Object tem; | |
791 | XSETSYMBOL (tem, symbol); | |
792 | xsignal1 (Qcyclic_variable_indirection, tem); | |
793 | } | |
f35d5bad GM |
794 | } |
795 | ||
796 | return hare; | |
797 | } | |
798 | ||
799 | ||
800 | DEFUN ("indirect-variable", Findirect_variable, Sindirect_variable, 1, 1, 0, | |
8c1a1077 PJ |
801 | doc: /* Return the variable at the end of OBJECT's variable chain. |
802 | If OBJECT is a symbol, follow all variable indirections and return the final | |
803 | variable. If OBJECT is not a symbol, just return it. | |
804 | Signal a cyclic-variable-indirection error if there is a loop in the | |
805 | variable chain of symbols. */) | |
5842a27b | 806 | (Lisp_Object object) |
f35d5bad GM |
807 | { |
808 | if (SYMBOLP (object)) | |
946f9a5b PE |
809 | { |
810 | struct Lisp_Symbol *sym = indirect_variable (XSYMBOL (object)); | |
811 | XSETSYMBOL (object, sym); | |
812 | } | |
f35d5bad GM |
813 | return object; |
814 | } | |
815 | ||
7921925c JB |
816 | |
817 | /* Given the raw contents of a symbol value cell, | |
818 | return the Lisp value of the symbol. | |
819 | This does not handle buffer-local variables; use | |
820 | swap_in_symval_forwarding for that. */ | |
821 | ||
822 | Lisp_Object | |
971de7fb | 823 | do_symval_forwarding (register union Lisp_Fwd *valcontents) |
7921925c JB |
824 | { |
825 | register Lisp_Object val; | |
ce5b453a SM |
826 | switch (XFWDTYPE (valcontents)) |
827 | { | |
828 | case Lisp_Fwd_Int: | |
829 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
830 | return val; | |
831 | ||
832 | case Lisp_Fwd_Bool: | |
833 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
834 | ||
835 | case Lisp_Fwd_Obj: | |
836 | return *XOBJFWD (valcontents)->objvar; | |
837 | ||
838 | case Lisp_Fwd_Buffer_Obj: | |
839 | return PER_BUFFER_VALUE (current_buffer, | |
840 | XBUFFER_OBJFWD (valcontents)->offset); | |
841 | ||
842 | case Lisp_Fwd_Kboard_Obj: | |
843 | /* We used to simply use current_kboard here, but from Lisp | |
844 | code, it's value is often unexpected. It seems nicer to | |
845 | allow constructions like this to work as intuitively expected: | |
846 | ||
847 | (with-selected-frame frame | |
848 | (define-key local-function-map "\eOP" [f1])) | |
849 | ||
850 | On the other hand, this affects the semantics of | |
851 | last-command and real-last-command, and people may rely on | |
852 | that. I took a quick look at the Lisp codebase, and I | |
853 | don't think anything will break. --lorentey */ | |
854 | return *(Lisp_Object *)(XKBOARD_OBJFWD (valcontents)->offset | |
855 | + (char *)FRAME_KBOARD (SELECTED_FRAME ())); | |
856 | default: abort (); | |
857 | } | |
7921925c JB |
858 | } |
859 | ||
d9c2a0f2 EN |
860 | /* Store NEWVAL into SYMBOL, where VALCONTENTS is found in the value cell |
861 | of SYMBOL. If SYMBOL is buffer-local, VALCONTENTS should be the | |
7921925c | 862 | buffer-independent contents of the value cell: forwarded just one |
7a283f36 GM |
863 | step past the buffer-localness. |
864 | ||
865 | BUF non-zero means set the value in buffer BUF instead of the | |
866 | current buffer. This only plays a role for per-buffer variables. */ | |
7921925c | 867 | |
ce5b453a | 868 | static void |
971de7fb | 869 | store_symval_forwarding (union Lisp_Fwd *valcontents, register Lisp_Object newval, struct buffer *buf) |
7921925c | 870 | { |
ce5b453a | 871 | switch (XFWDTYPE (valcontents)) |
7921925c | 872 | { |
ce5b453a SM |
873 | case Lisp_Fwd_Int: |
874 | CHECK_NUMBER (newval); | |
875 | *XINTFWD (valcontents)->intvar = XINT (newval); | |
876 | break; | |
aa3830c4 | 877 | |
ce5b453a SM |
878 | case Lisp_Fwd_Bool: |
879 | *XBOOLFWD (valcontents)->boolvar = !NILP (newval); | |
880 | break; | |
aa3830c4 | 881 | |
ce5b453a SM |
882 | case Lisp_Fwd_Obj: |
883 | *XOBJFWD (valcontents)->objvar = newval; | |
aa3830c4 | 884 | |
ce5b453a SM |
885 | /* If this variable is a default for something stored |
886 | in the buffer itself, such as default-fill-column, | |
887 | find the buffers that don't have local values for it | |
888 | and update them. */ | |
889 | if (XOBJFWD (valcontents)->objvar > (Lisp_Object *) &buffer_defaults | |
890 | && XOBJFWD (valcontents)->objvar < (Lisp_Object *) (&buffer_defaults + 1)) | |
46b2ac21 | 891 | { |
ce5b453a SM |
892 | int offset = ((char *) XOBJFWD (valcontents)->objvar |
893 | - (char *) &buffer_defaults); | |
894 | int idx = PER_BUFFER_IDX (offset); | |
aa3830c4 | 895 | |
ce5b453a | 896 | Lisp_Object tail; |
aa3830c4 | 897 | |
ce5b453a SM |
898 | if (idx <= 0) |
899 | break; | |
aa3830c4 | 900 | |
ce5b453a | 901 | for (tail = Vbuffer_alist; CONSP (tail); tail = XCDR (tail)) |
6b61353c | 902 | { |
b9b84fa9 | 903 | Lisp_Object lbuf; |
ce5b453a | 904 | struct buffer *b; |
6b61353c | 905 | |
b9b84fa9 PE |
906 | lbuf = Fcdr (XCAR (tail)); |
907 | if (!BUFFERP (lbuf)) continue; | |
908 | b = XBUFFER (lbuf); | |
6b61353c | 909 | |
ce5b453a SM |
910 | if (! PER_BUFFER_VALUE_P (b, idx)) |
911 | PER_BUFFER_VALUE (b, offset) = newval; | |
6b61353c | 912 | } |
ce5b453a SM |
913 | } |
914 | break; | |
7403b5c8 | 915 | |
ce5b453a SM |
916 | case Lisp_Fwd_Buffer_Obj: |
917 | { | |
918 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
919 | Lisp_Object type = XBUFFER_OBJFWD (valcontents)->slottype; | |
920 | ||
921 | if (!(NILP (type) || NILP (newval) | |
922 | || (XINT (type) == LISP_INT_TAG | |
923 | ? INTEGERP (newval) | |
924 | : XTYPE (newval) == XINT (type)))) | |
925 | buffer_slot_type_mismatch (newval, XINT (type)); | |
926 | ||
927 | if (buf == NULL) | |
928 | buf = current_buffer; | |
929 | PER_BUFFER_VALUE (buf, offset) = newval; | |
930 | } | |
931 | break; | |
7403b5c8 | 932 | |
ce5b453a SM |
933 | case Lisp_Fwd_Kboard_Obj: |
934 | { | |
935 | char *base = (char *) FRAME_KBOARD (SELECTED_FRAME ()); | |
936 | char *p = base + XKBOARD_OBJFWD (valcontents)->offset; | |
937 | *(Lisp_Object *) p = newval; | |
938 | } | |
7921925c JB |
939 | break; |
940 | ||
7921925c | 941 | default: |
ce5b453a | 942 | abort (); /* goto def; */ |
7921925c JB |
943 | } |
944 | } | |
945 | ||
b0d53add GM |
946 | /* Set up SYMBOL to refer to its global binding. |
947 | This makes it safe to alter the status of other bindings. */ | |
948 | ||
949 | void | |
971de7fb | 950 | swap_in_global_binding (struct Lisp_Symbol *symbol) |
b0d53add | 951 | { |
ce5b453a | 952 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (symbol); |
b0d53add GM |
953 | |
954 | /* Unload the previously loaded binding. */ | |
ce5b453a SM |
955 | if (blv->fwd) |
956 | SET_BLV_VALUE (blv, do_symval_forwarding (blv->fwd)); | |
bfb96cb7 | 957 | |
b0d53add | 958 | /* Select the global binding in the symbol. */ |
ce5b453a SM |
959 | blv->valcell = blv->defcell; |
960 | if (blv->fwd) | |
961 | store_symval_forwarding (blv->fwd, XCDR (blv->defcell), NULL); | |
b0d53add GM |
962 | |
963 | /* Indicate that the global binding is set up now. */ | |
ce5b453a SM |
964 | blv->where = Qnil; |
965 | SET_BLV_FOUND (blv, 0); | |
b0d53add GM |
966 | } |
967 | ||
2829d05f | 968 | /* Set up the buffer-local symbol SYMBOL for validity in the current buffer. |
42e975f0 RS |
969 | VALCONTENTS is the contents of its value cell, |
970 | which points to a struct Lisp_Buffer_Local_Value. | |
971 | ||
972 | Return the value forwarded one step past the buffer-local stage. | |
973 | This could be another forwarding pointer. */ | |
7921925c | 974 | |
ce5b453a | 975 | static void |
971de7fb | 976 | swap_in_symval_forwarding (struct Lisp_Symbol *symbol, struct Lisp_Buffer_Local_Value *blv) |
7921925c | 977 | { |
7921925c | 978 | register Lisp_Object tem1; |
bfb96cb7 | 979 | |
ce5b453a SM |
980 | eassert (blv == SYMBOL_BLV (symbol)); |
981 | ||
982 | tem1 = blv->where; | |
7921925c | 983 | |
42e975f0 | 984 | if (NILP (tem1) |
ce5b453a SM |
985 | || (blv->frame_local |
986 | ? !EQ (selected_frame, tem1) | |
987 | : current_buffer != XBUFFER (tem1))) | |
7921925c | 988 | { |
bfb96cb7 | 989 | |
42e975f0 | 990 | /* Unload the previously loaded binding. */ |
ce5b453a SM |
991 | tem1 = blv->valcell; |
992 | if (blv->fwd) | |
993 | SET_BLV_VALUE (blv, do_symval_forwarding (blv->fwd)); | |
42e975f0 | 994 | /* Choose the new binding. */ |
ce5b453a SM |
995 | { |
996 | Lisp_Object var; | |
997 | XSETSYMBOL (var, symbol); | |
998 | if (blv->frame_local) | |
999 | { | |
1000 | tem1 = assq_no_quit (var, XFRAME (selected_frame)->param_alist); | |
1001 | blv->where = selected_frame; | |
1002 | } | |
1003 | else | |
1004 | { | |
4b4deea2 | 1005 | tem1 = assq_no_quit (var, BVAR (current_buffer, local_var_alist)); |
ce5b453a SM |
1006 | XSETBUFFER (blv->where, current_buffer); |
1007 | } | |
1008 | } | |
1009 | if (!(blv->found = !NILP (tem1))) | |
1010 | tem1 = blv->defcell; | |
b0c2d1c6 | 1011 | |
42e975f0 | 1012 | /* Load the new binding. */ |
ce5b453a SM |
1013 | blv->valcell = tem1; |
1014 | if (blv->fwd) | |
1015 | store_symval_forwarding (blv->fwd, BLV_VALUE (blv), NULL); | |
7921925c | 1016 | } |
7921925c JB |
1017 | } |
1018 | \f | |
14e76af9 JB |
1019 | /* Find the value of a symbol, returning Qunbound if it's not bound. |
1020 | This is helpful for code which just wants to get a variable's value | |
8e6208c5 | 1021 | if it has one, without signaling an error. |
14e76af9 JB |
1022 | Note that it must not be possible to quit |
1023 | within this function. Great care is required for this. */ | |
7921925c | 1024 | |
14e76af9 | 1025 | Lisp_Object |
971de7fb | 1026 | find_symbol_value (Lisp_Object symbol) |
7921925c | 1027 | { |
ce5b453a | 1028 | struct Lisp_Symbol *sym; |
bfb96cb7 | 1029 | |
b7826503 | 1030 | CHECK_SYMBOL (symbol); |
ce5b453a | 1031 | sym = XSYMBOL (symbol); |
7921925c | 1032 | |
ce5b453a SM |
1033 | start: |
1034 | switch (sym->redirect) | |
1035 | { | |
1036 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
1037 | case SYMBOL_PLAINVAL: return SYMBOL_VAL (sym); | |
1038 | case SYMBOL_LOCALIZED: | |
1039 | { | |
1040 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
1041 | swap_in_symval_forwarding (sym, blv); | |
1042 | return blv->fwd ? do_symval_forwarding (blv->fwd) : BLV_VALUE (blv); | |
1043 | } | |
1044 | /* FALLTHROUGH */ | |
1045 | case SYMBOL_FORWARDED: | |
1046 | return do_symval_forwarding (SYMBOL_FWD (sym)); | |
1047 | default: abort (); | |
1048 | } | |
7921925c JB |
1049 | } |
1050 | ||
a7ca3326 | 1051 | DEFUN ("symbol-value", Fsymbol_value, Ssymbol_value, 1, 1, 0, |
8c1a1077 | 1052 | doc: /* Return SYMBOL's value. Error if that is void. */) |
5842a27b | 1053 | (Lisp_Object symbol) |
14e76af9 | 1054 | { |
0671d7c0 | 1055 | Lisp_Object val; |
14e76af9 | 1056 | |
d9c2a0f2 | 1057 | val = find_symbol_value (symbol); |
740ef0b5 | 1058 | if (!EQ (val, Qunbound)) |
14e76af9 | 1059 | return val; |
740ef0b5 KS |
1060 | |
1061 | xsignal1 (Qvoid_variable, symbol); | |
14e76af9 JB |
1062 | } |
1063 | ||
a7ca3326 | 1064 | DEFUN ("set", Fset, Sset, 2, 2, 0, |
8c1a1077 | 1065 | doc: /* Set SYMBOL's value to NEWVAL, and return NEWVAL. */) |
5842a27b | 1066 | (register Lisp_Object symbol, Lisp_Object newval) |
05ef7169 | 1067 | { |
94b612ad | 1068 | set_internal (symbol, newval, Qnil, 0); |
ce5b453a | 1069 | return newval; |
05ef7169 RS |
1070 | } |
1071 | ||
1f35ce36 RS |
1072 | /* Return 1 if SYMBOL currently has a let-binding |
1073 | which was made in the buffer that is now current. */ | |
1074 | ||
1075 | static int | |
ce5b453a | 1076 | let_shadows_buffer_binding_p (struct Lisp_Symbol *symbol) |
1f35ce36 | 1077 | { |
ce5b453a | 1078 | struct specbinding *p; |
1f35ce36 RS |
1079 | |
1080 | for (p = specpdl_ptr - 1; p >= specpdl; p--) | |
f35d5bad GM |
1081 | if (p->func == NULL |
1082 | && CONSP (p->symbol)) | |
1083 | { | |
ad97b375 | 1084 | struct Lisp_Symbol *let_bound_symbol = XSYMBOL (XCAR (p->symbol)); |
ce5b453a SM |
1085 | eassert (let_bound_symbol->redirect != SYMBOL_VARALIAS); |
1086 | if (symbol == let_bound_symbol | |
f35d5bad GM |
1087 | && XBUFFER (XCDR (XCDR (p->symbol))) == current_buffer) |
1088 | break; | |
1089 | } | |
1f35ce36 | 1090 | |
f35d5bad | 1091 | return p >= specpdl; |
1f35ce36 RS |
1092 | } |
1093 | ||
ce5b453a | 1094 | static int |
971de7fb | 1095 | let_shadows_global_binding_p (Lisp_Object symbol) |
ce5b453a SM |
1096 | { |
1097 | struct specbinding *p; | |
1098 | ||
1099 | for (p = specpdl_ptr - 1; p >= specpdl; p--) | |
1100 | if (p->func == NULL && EQ (p->symbol, symbol)) | |
1101 | break; | |
1102 | ||
1103 | return p >= specpdl; | |
1104 | } | |
1105 | ||
25638b07 | 1106 | /* Store the value NEWVAL into SYMBOL. |
94b612ad SM |
1107 | If buffer/frame-locality is an issue, WHERE specifies which context to use. |
1108 | (nil stands for the current buffer/frame). | |
2829d05f | 1109 | |
05ef7169 RS |
1110 | If BINDFLAG is zero, then if this symbol is supposed to become |
1111 | local in every buffer where it is set, then we make it local. | |
1112 | If BINDFLAG is nonzero, we don't do that. */ | |
1113 | ||
ce5b453a | 1114 | void |
971de7fb | 1115 | set_internal (register Lisp_Object symbol, register Lisp_Object newval, register Lisp_Object where, int bindflag) |
7921925c | 1116 | { |
1bfcade3 | 1117 | int voide = EQ (newval, Qunbound); |
ce5b453a SM |
1118 | struct Lisp_Symbol *sym; |
1119 | Lisp_Object tem1; | |
7921925c | 1120 | |
2829d05f | 1121 | /* If restoring in a dead buffer, do nothing. */ |
94b612ad SM |
1122 | /* if (BUFFERP (where) && NILP (XBUFFER (where)->name)) |
1123 | return; */ | |
2829d05f | 1124 | |
b7826503 | 1125 | CHECK_SYMBOL (symbol); |
ce5b453a | 1126 | if (SYMBOL_CONSTANT_P (symbol)) |
7921925c | 1127 | { |
ce5b453a SM |
1128 | if (NILP (Fkeywordp (symbol)) |
1129 | || !EQ (newval, Fsymbol_value (symbol))) | |
1130 | xsignal1 (Qsetting_constant, symbol); | |
1131 | else | |
1132 | /* Allow setting keywords to their own value. */ | |
1133 | return; | |
7921925c | 1134 | } |
42e975f0 | 1135 | |
ce5b453a | 1136 | sym = XSYMBOL (symbol); |
7921925c | 1137 | |
ce5b453a SM |
1138 | start: |
1139 | switch (sym->redirect) | |
1140 | { | |
1141 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
1142 | case SYMBOL_PLAINVAL: SET_SYMBOL_VAL (sym , newval); return; | |
1143 | case SYMBOL_LOCALIZED: | |
1144 | { | |
1145 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
94b612ad SM |
1146 | if (NILP (where)) |
1147 | { | |
1148 | if (blv->frame_local) | |
1149 | where = selected_frame; | |
1150 | else | |
1151 | XSETBUFFER (where, current_buffer); | |
1152 | } | |
ce5b453a SM |
1153 | /* If the current buffer is not the buffer whose binding is |
1154 | loaded, or if there may be frame-local bindings and the frame | |
1155 | isn't the right one, or if it's a Lisp_Buffer_Local_Value and | |
1156 | the default binding is loaded, the loaded binding may be the | |
1157 | wrong one. */ | |
94b612ad | 1158 | if (!EQ (blv->where, where) |
ce5b453a SM |
1159 | /* Also unload a global binding (if the var is local_if_set). */ |
1160 | || (EQ (blv->valcell, blv->defcell))) | |
1161 | { | |
1162 | /* The currently loaded binding is not necessarily valid. | |
1163 | We need to unload it, and choose a new binding. */ | |
1164 | ||
1165 | /* Write out `realvalue' to the old loaded binding. */ | |
1166 | if (blv->fwd) | |
1167 | SET_BLV_VALUE (blv, do_symval_forwarding (blv->fwd)); | |
b0c2d1c6 | 1168 | |
ce5b453a | 1169 | /* Find the new binding. */ |
94b612ad SM |
1170 | XSETSYMBOL (symbol, sym); /* May have changed via aliasing. */ |
1171 | tem1 = Fassq (symbol, | |
1172 | (blv->frame_local | |
1173 | ? XFRAME (where)->param_alist | |
4b4deea2 | 1174 | : BVAR (XBUFFER (where), local_var_alist))); |
94b612ad | 1175 | blv->where = where; |
ce5b453a SM |
1176 | blv->found = 1; |
1177 | ||
1178 | if (NILP (tem1)) | |
1179 | { | |
1180 | /* This buffer still sees the default value. */ | |
1181 | ||
1182 | /* If the variable is a Lisp_Some_Buffer_Local_Value, | |
1183 | or if this is `let' rather than `set', | |
1184 | make CURRENT-ALIST-ELEMENT point to itself, | |
1185 | indicating that we're seeing the default value. | |
1186 | Likewise if the variable has been let-bound | |
1187 | in the current buffer. */ | |
1188 | if (bindflag || !blv->local_if_set | |
1189 | || let_shadows_buffer_binding_p (sym)) | |
1190 | { | |
1191 | blv->found = 0; | |
1192 | tem1 = blv->defcell; | |
1193 | } | |
1194 | /* If it's a local_if_set, being set not bound, | |
1195 | and we're not within a let that was made for this buffer, | |
1196 | create a new buffer-local binding for the variable. | |
1197 | That means, give this buffer a new assoc for a local value | |
1198 | and load that binding. */ | |
1199 | else | |
1200 | { | |
1201 | /* local_if_set is only supported for buffer-local | |
1202 | bindings, not for frame-local bindings. */ | |
1203 | eassert (!blv->frame_local); | |
1204 | tem1 = Fcons (symbol, XCDR (blv->defcell)); | |
4b4deea2 TT |
1205 | BVAR (XBUFFER (where), local_var_alist) |
1206 | = Fcons (tem1, BVAR (XBUFFER (where), local_var_alist)); | |
ce5b453a SM |
1207 | } |
1208 | } | |
1209 | ||
1210 | /* Record which binding is now loaded. */ | |
1211 | blv->valcell = tem1; | |
1212 | } | |
b0c2d1c6 | 1213 | |
ce5b453a SM |
1214 | /* Store the new value in the cons cell. */ |
1215 | SET_BLV_VALUE (blv, newval); | |
d8cafeb5 | 1216 | |
ce5b453a SM |
1217 | if (blv->fwd) |
1218 | { | |
1219 | if (voide) | |
1220 | /* If storing void (making the symbol void), forward only through | |
1221 | buffer-local indicator, not through Lisp_Objfwd, etc. */ | |
1222 | blv->fwd = NULL; | |
1223 | else | |
94b612ad SM |
1224 | store_symval_forwarding (blv->fwd, newval, |
1225 | BUFFERP (where) | |
1226 | ? XBUFFER (where) : current_buffer); | |
ce5b453a SM |
1227 | } |
1228 | break; | |
1229 | } | |
1230 | case SYMBOL_FORWARDED: | |
1231 | { | |
94b612ad SM |
1232 | struct buffer *buf |
1233 | = BUFFERP (where) ? XBUFFER (where) : current_buffer; | |
ce5b453a SM |
1234 | union Lisp_Fwd *innercontents = SYMBOL_FWD (sym); |
1235 | if (BUFFER_OBJFWDP (innercontents)) | |
1236 | { | |
1237 | int offset = XBUFFER_OBJFWD (innercontents)->offset; | |
1238 | int idx = PER_BUFFER_IDX (offset); | |
1239 | if (idx > 0 | |
1240 | && !bindflag | |
1241 | && !let_shadows_buffer_binding_p (sym)) | |
1242 | SET_PER_BUFFER_VALUE_P (buf, idx, 1); | |
1243 | } | |
569c11e3 | 1244 | |
ce5b453a SM |
1245 | if (voide) |
1246 | { /* If storing void (making the symbol void), forward only through | |
1247 | buffer-local indicator, not through Lisp_Objfwd, etc. */ | |
1248 | sym->redirect = SYMBOL_PLAINVAL; | |
1249 | SET_SYMBOL_VAL (sym, newval); | |
1250 | } | |
1251 | else | |
1252 | store_symval_forwarding (/* sym, */ innercontents, newval, buf); | |
1253 | break; | |
1254 | } | |
1255 | default: abort (); | |
7921925c | 1256 | } |
ce5b453a | 1257 | return; |
7921925c JB |
1258 | } |
1259 | \f | |
1260 | /* Access or set a buffer-local symbol's default value. */ | |
1261 | ||
d9c2a0f2 | 1262 | /* Return the default value of SYMBOL, but don't check for voidness. |
1bfcade3 | 1263 | Return Qunbound if it is void. */ |
7921925c | 1264 | |
112396d6 | 1265 | static Lisp_Object |
971de7fb | 1266 | default_value (Lisp_Object symbol) |
7921925c | 1267 | { |
ce5b453a | 1268 | struct Lisp_Symbol *sym; |
7921925c | 1269 | |
b7826503 | 1270 | CHECK_SYMBOL (symbol); |
ce5b453a | 1271 | sym = XSYMBOL (symbol); |
7921925c | 1272 | |
ce5b453a SM |
1273 | start: |
1274 | switch (sym->redirect) | |
7921925c | 1275 | { |
ce5b453a SM |
1276 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1277 | case SYMBOL_PLAINVAL: return SYMBOL_VAL (sym); | |
1278 | case SYMBOL_LOCALIZED: | |
1279 | { | |
1280 | /* If var is set up for a buffer that lacks a local value for it, | |
1281 | the current value is nominally the default value. | |
1282 | But the `realvalue' slot may be more up to date, since | |
1283 | ordinary setq stores just that slot. So use that. */ | |
1284 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
1285 | if (blv->fwd && EQ (blv->valcell, blv->defcell)) | |
1286 | return do_symval_forwarding (blv->fwd); | |
1287 | else | |
1288 | return XCDR (blv->defcell); | |
1289 | } | |
1290 | case SYMBOL_FORWARDED: | |
1291 | { | |
1292 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
7921925c | 1293 | |
ce5b453a SM |
1294 | /* For a built-in buffer-local variable, get the default value |
1295 | rather than letting do_symval_forwarding get the current value. */ | |
1296 | if (BUFFER_OBJFWDP (valcontents)) | |
1297 | { | |
1298 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
1299 | if (PER_BUFFER_IDX (offset) != 0) | |
1300 | return PER_BUFFER_DEFAULT (offset); | |
1301 | } | |
1302 | ||
1303 | /* For other variables, get the current value. */ | |
1304 | return do_symval_forwarding (valcontents); | |
1305 | } | |
1306 | default: abort (); | |
7921925c | 1307 | } |
7921925c JB |
1308 | } |
1309 | ||
a7ca3326 | 1310 | DEFUN ("default-boundp", Fdefault_boundp, Sdefault_boundp, 1, 1, 0, |
8c1a1077 PJ |
1311 | doc: /* Return t if SYMBOL has a non-void default value. |
1312 | This is the value that is seen in buffers that do not have their own values | |
1313 | for this variable. */) | |
5842a27b | 1314 | (Lisp_Object symbol) |
7921925c JB |
1315 | { |
1316 | register Lisp_Object value; | |
1317 | ||
d9c2a0f2 | 1318 | value = default_value (symbol); |
1bfcade3 | 1319 | return (EQ (value, Qunbound) ? Qnil : Qt); |
7921925c JB |
1320 | } |
1321 | ||
a7ca3326 | 1322 | DEFUN ("default-value", Fdefault_value, Sdefault_value, 1, 1, 0, |
8c1a1077 PJ |
1323 | doc: /* Return SYMBOL's default value. |
1324 | This is the value that is seen in buffers that do not have their own values | |
1325 | for this variable. The default value is meaningful for variables with | |
1326 | local bindings in certain buffers. */) | |
5842a27b | 1327 | (Lisp_Object symbol) |
7921925c JB |
1328 | { |
1329 | register Lisp_Object value; | |
1330 | ||
d9c2a0f2 | 1331 | value = default_value (symbol); |
740ef0b5 KS |
1332 | if (!EQ (value, Qunbound)) |
1333 | return value; | |
1334 | ||
1335 | xsignal1 (Qvoid_variable, symbol); | |
7921925c JB |
1336 | } |
1337 | ||
a7ca3326 | 1338 | DEFUN ("set-default", Fset_default, Sset_default, 2, 2, 0, |
6e86a75d | 1339 | doc: /* Set SYMBOL's default value to VALUE. SYMBOL and VALUE are evaluated. |
8c1a1077 PJ |
1340 | The default value is seen in buffers that do not have their own values |
1341 | for this variable. */) | |
5842a27b | 1342 | (Lisp_Object symbol, Lisp_Object value) |
7921925c | 1343 | { |
ce5b453a | 1344 | struct Lisp_Symbol *sym; |
7921925c | 1345 | |
b7826503 | 1346 | CHECK_SYMBOL (symbol); |
ce5b453a | 1347 | if (SYMBOL_CONSTANT_P (symbol)) |
7921925c | 1348 | { |
ce5b453a SM |
1349 | if (NILP (Fkeywordp (symbol)) |
1350 | || !EQ (value, Fdefault_value (symbol))) | |
1351 | xsignal1 (Qsetting_constant, symbol); | |
1352 | else | |
1353 | /* Allow setting keywords to their own value. */ | |
1354 | return value; | |
1355 | } | |
1356 | sym = XSYMBOL (symbol); | |
7921925c | 1357 | |
ce5b453a SM |
1358 | start: |
1359 | switch (sym->redirect) | |
1360 | { | |
1361 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
1362 | case SYMBOL_PLAINVAL: return Fset (symbol, value); | |
1363 | case SYMBOL_LOCALIZED: | |
1364 | { | |
1365 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
984ef137 | 1366 | |
ce5b453a SM |
1367 | /* Store new value into the DEFAULT-VALUE slot. */ |
1368 | XSETCDR (blv->defcell, value); | |
bfb96cb7 | 1369 | |
ce5b453a SM |
1370 | /* If the default binding is now loaded, set the REALVALUE slot too. */ |
1371 | if (blv->fwd && EQ (blv->defcell, blv->valcell)) | |
1372 | store_symval_forwarding (blv->fwd, value, NULL); | |
1373 | return value; | |
1374 | } | |
1375 | case SYMBOL_FORWARDED: | |
1376 | { | |
1377 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
7921925c | 1378 | |
ce5b453a SM |
1379 | /* Handle variables like case-fold-search that have special slots |
1380 | in the buffer. | |
1381 | Make them work apparently like Lisp_Buffer_Local_Value variables. */ | |
1382 | if (BUFFER_OBJFWDP (valcontents)) | |
1383 | { | |
1384 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
1385 | int idx = PER_BUFFER_IDX (offset); | |
7921925c | 1386 | |
ce5b453a | 1387 | PER_BUFFER_DEFAULT (offset) = value; |
7921925c | 1388 | |
ce5b453a SM |
1389 | /* If this variable is not always local in all buffers, |
1390 | set it in the buffers that don't nominally have a local value. */ | |
1391 | if (idx > 0) | |
1392 | { | |
1393 | struct buffer *b; | |
7921925c | 1394 | |
eab3844f | 1395 | for (b = all_buffers; b; b = b->header.next.buffer) |
ce5b453a SM |
1396 | if (!PER_BUFFER_VALUE_P (b, idx)) |
1397 | PER_BUFFER_VALUE (b, offset) = value; | |
1398 | } | |
1399 | return value; | |
1400 | } | |
1401 | else | |
1402 | return Fset (symbol, value); | |
1403 | } | |
1404 | default: abort (); | |
1405 | } | |
7921925c JB |
1406 | } |
1407 | ||
7a7df7ac | 1408 | DEFUN ("setq-default", Fsetq_default, Ssetq_default, 0, UNEVALLED, 0, |
8c1a1077 PJ |
1409 | doc: /* Set the default value of variable VAR to VALUE. |
1410 | VAR, the variable name, is literal (not evaluated); | |
bfb96cb7 | 1411 | VALUE is an expression: it is evaluated and its value returned. |
8c1a1077 PJ |
1412 | The default value of a variable is seen in buffers |
1413 | that do not have their own values for the variable. | |
1414 | ||
1415 | More generally, you can use multiple variables and values, as in | |
948d2995 JB |
1416 | (setq-default VAR VALUE VAR VALUE...) |
1417 | This sets each VAR's default value to the corresponding VALUE. | |
1418 | The VALUE for the Nth VAR can refer to the new default values | |
1419 | of previous VARs. | |
70e9f399 | 1420 | usage: (setq-default [VAR VALUE]...) */) |
5842a27b | 1421 | (Lisp_Object args) |
7921925c JB |
1422 | { |
1423 | register Lisp_Object args_left; | |
d9c2a0f2 | 1424 | register Lisp_Object val, symbol; |
7921925c JB |
1425 | struct gcpro gcpro1; |
1426 | ||
a33ef3ab | 1427 | if (NILP (args)) |
7921925c JB |
1428 | return Qnil; |
1429 | ||
1430 | args_left = args; | |
1431 | GCPRO1 (args); | |
1432 | ||
1433 | do | |
1434 | { | |
defb1411 | 1435 | val = eval_sub (Fcar (Fcdr (args_left))); |
d2fde41d | 1436 | symbol = XCAR (args_left); |
d9c2a0f2 | 1437 | Fset_default (symbol, val); |
d2fde41d | 1438 | args_left = Fcdr (XCDR (args_left)); |
7921925c | 1439 | } |
a33ef3ab | 1440 | while (!NILP (args_left)); |
7921925c JB |
1441 | |
1442 | UNGCPRO; | |
1443 | return val; | |
1444 | } | |
1445 | \f | |
a5ca2b75 JB |
1446 | /* Lisp functions for creating and removing buffer-local variables. */ |
1447 | ||
ce5b453a SM |
1448 | union Lisp_Val_Fwd |
1449 | { | |
1450 | Lisp_Object value; | |
1451 | union Lisp_Fwd *fwd; | |
1452 | }; | |
1453 | ||
1454 | static struct Lisp_Buffer_Local_Value * | |
1455 | make_blv (struct Lisp_Symbol *sym, int forwarded, union Lisp_Val_Fwd valcontents) | |
1456 | { | |
1457 | struct Lisp_Buffer_Local_Value *blv | |
1458 | = xmalloc (sizeof (struct Lisp_Buffer_Local_Value)); | |
c632dfda JD |
1459 | Lisp_Object symbol; |
1460 | Lisp_Object tem; | |
1461 | ||
1462 | XSETSYMBOL (symbol, sym); | |
1463 | tem = Fcons (symbol, (forwarded | |
1464 | ? do_symval_forwarding (valcontents.fwd) | |
1465 | : valcontents.value)); | |
1466 | ||
ce5b453a SM |
1467 | /* Buffer_Local_Values cannot have as realval a buffer-local |
1468 | or keyboard-local forwarding. */ | |
1469 | eassert (!(forwarded && BUFFER_OBJFWDP (valcontents.fwd))); | |
1470 | eassert (!(forwarded && KBOARD_OBJFWDP (valcontents.fwd))); | |
1471 | blv->fwd = forwarded ? valcontents.fwd : NULL; | |
1472 | blv->where = Qnil; | |
1473 | blv->frame_local = 0; | |
1474 | blv->local_if_set = 0; | |
1475 | blv->defcell = tem; | |
1476 | blv->valcell = tem; | |
1477 | SET_BLV_FOUND (blv, 0); | |
1478 | return blv; | |
1479 | } | |
1480 | ||
a7ca3326 | 1481 | DEFUN ("make-variable-buffer-local", Fmake_variable_buffer_local, |
16a97296 | 1482 | Smake_variable_buffer_local, 1, 1, "vMake Variable Buffer Local: ", |
8c1a1077 PJ |
1483 | doc: /* Make VARIABLE become buffer-local whenever it is set. |
1484 | At any time, the value for the current buffer is in effect, | |
1485 | unless the variable has never been set in this buffer, | |
1486 | in which case the default value is in effect. | |
1487 | Note that binding the variable with `let', or setting it while | |
1488 | a `let'-style binding made in this buffer is in effect, | |
bfb96cb7 | 1489 | does not make the variable buffer-local. Return VARIABLE. |
8c1a1077 | 1490 | |
a9908653 RS |
1491 | In most cases it is better to use `make-local-variable', |
1492 | which makes a variable local in just one buffer. | |
1493 | ||
8c1a1077 | 1494 | The function `default-value' gets the default value and `set-default' sets it. */) |
5842a27b | 1495 | (register Lisp_Object variable) |
7921925c | 1496 | { |
ad97b375 | 1497 | struct Lisp_Symbol *sym; |
ce5b453a | 1498 | struct Lisp_Buffer_Local_Value *blv = NULL; |
cdef261f PE |
1499 | union Lisp_Val_Fwd valcontents IF_LINT (= {0}); |
1500 | int forwarded IF_LINT (= 0); | |
7921925c | 1501 | |
b7826503 | 1502 | CHECK_SYMBOL (variable); |
ce5b453a | 1503 | sym = XSYMBOL (variable); |
7921925c | 1504 | |
ce5b453a SM |
1505 | start: |
1506 | switch (sym->redirect) | |
fd9440c5 | 1507 | { |
ce5b453a SM |
1508 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1509 | case SYMBOL_PLAINVAL: | |
1510 | forwarded = 0; valcontents.value = SYMBOL_VAL (sym); | |
1511 | if (EQ (valcontents.value, Qunbound)) | |
1512 | valcontents.value = Qnil; | |
1513 | break; | |
1514 | case SYMBOL_LOCALIZED: | |
1515 | blv = SYMBOL_BLV (sym); | |
1516 | if (blv->frame_local) | |
1517 | error ("Symbol %s may not be buffer-local", | |
1518 | SDATA (SYMBOL_NAME (variable))); | |
1519 | break; | |
1520 | case SYMBOL_FORWARDED: | |
1521 | forwarded = 1; valcontents.fwd = SYMBOL_FWD (sym); | |
1522 | if (KBOARD_OBJFWDP (valcontents.fwd)) | |
1523 | error ("Symbol %s may not be buffer-local", | |
1524 | SDATA (SYMBOL_NAME (variable))); | |
1525 | else if (BUFFER_OBJFWDP (valcontents.fwd)) | |
1526 | return variable; | |
1527 | break; | |
1528 | default: abort (); | |
fd9440c5 | 1529 | } |
ce5b453a SM |
1530 | |
1531 | if (sym->constant) | |
1532 | error ("Symbol %s may not be buffer-local", SDATA (SYMBOL_NAME (variable))); | |
1533 | ||
1534 | if (!blv) | |
7921925c | 1535 | { |
ce5b453a SM |
1536 | blv = make_blv (sym, forwarded, valcontents); |
1537 | sym->redirect = SYMBOL_LOCALIZED; | |
1538 | SET_SYMBOL_BLV (sym, blv); | |
1539 | { | |
1540 | Lisp_Object symbol; | |
1541 | XSETSYMBOL (symbol, sym); /* In case `variable' is aliased. */ | |
1542 | if (let_shadows_global_binding_p (symbol)) | |
8b1e1112 SM |
1543 | message ("Making %s buffer-local while let-bound!", |
1544 | SDATA (SYMBOL_NAME (variable))); | |
ce5b453a | 1545 | } |
7921925c | 1546 | } |
ce5b453a SM |
1547 | |
1548 | blv->local_if_set = 1; | |
d9c2a0f2 | 1549 | return variable; |
7921925c JB |
1550 | } |
1551 | ||
a7ca3326 | 1552 | DEFUN ("make-local-variable", Fmake_local_variable, Smake_local_variable, |
8c1a1077 PJ |
1553 | 1, 1, "vMake Local Variable: ", |
1554 | doc: /* Make VARIABLE have a separate value in the current buffer. | |
1555 | Other buffers will continue to share a common default value. | |
1556 | \(The buffer-local value of VARIABLE starts out as the same value | |
1557 | VARIABLE previously had. If VARIABLE was void, it remains void.\) | |
a9908653 | 1558 | Return VARIABLE. |
8c1a1077 PJ |
1559 | |
1560 | If the variable is already arranged to become local when set, | |
1561 | this function causes a local value to exist for this buffer, | |
1562 | just as setting the variable would do. | |
1563 | ||
1564 | This function returns VARIABLE, and therefore | |
1565 | (set (make-local-variable 'VARIABLE) VALUE-EXP) | |
1566 | works. | |
1567 | ||
a9908653 RS |
1568 | See also `make-variable-buffer-local'. |
1569 | ||
8c1a1077 | 1570 | Do not use `make-local-variable' to make a hook variable buffer-local. |
515f3f25 | 1571 | Instead, use `add-hook' and specify t for the LOCAL argument. */) |
5842a27b | 1572 | (register Lisp_Object variable) |
7921925c | 1573 | { |
ce5b453a | 1574 | register Lisp_Object tem; |
cdef261f PE |
1575 | int forwarded IF_LINT (= 0); |
1576 | union Lisp_Val_Fwd valcontents IF_LINT (= {0}); | |
ad97b375 | 1577 | struct Lisp_Symbol *sym; |
ce5b453a | 1578 | struct Lisp_Buffer_Local_Value *blv = NULL; |
7921925c | 1579 | |
b7826503 | 1580 | CHECK_SYMBOL (variable); |
ce5b453a | 1581 | sym = XSYMBOL (variable); |
7921925c | 1582 | |
ce5b453a SM |
1583 | start: |
1584 | switch (sym->redirect) | |
1585 | { | |
1586 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
1587 | case SYMBOL_PLAINVAL: | |
1588 | forwarded = 0; valcontents.value = SYMBOL_VAL (sym); break; | |
1589 | case SYMBOL_LOCALIZED: | |
1590 | blv = SYMBOL_BLV (sym); | |
1591 | if (blv->frame_local) | |
1592 | error ("Symbol %s may not be buffer-local", | |
1593 | SDATA (SYMBOL_NAME (variable))); | |
1594 | break; | |
1595 | case SYMBOL_FORWARDED: | |
1596 | forwarded = 1; valcontents.fwd = SYMBOL_FWD (sym); | |
1597 | if (KBOARD_OBJFWDP (valcontents.fwd)) | |
1598 | error ("Symbol %s may not be buffer-local", | |
1599 | SDATA (SYMBOL_NAME (variable))); | |
1600 | break; | |
1601 | default: abort (); | |
1602 | } | |
1603 | ||
1604 | if (sym->constant) | |
8b1e1112 SM |
1605 | error ("Symbol %s may not be buffer-local", |
1606 | SDATA (SYMBOL_NAME (variable))); | |
7921925c | 1607 | |
ce5b453a SM |
1608 | if (blv ? blv->local_if_set |
1609 | : (forwarded && BUFFER_OBJFWDP (valcontents.fwd))) | |
7921925c | 1610 | { |
d9c2a0f2 | 1611 | tem = Fboundp (variable); |
7921925c JB |
1612 | /* Make sure the symbol has a local value in this particular buffer, |
1613 | by setting it to the same value it already has. */ | |
d9c2a0f2 EN |
1614 | Fset (variable, (EQ (tem, Qt) ? Fsymbol_value (variable) : Qunbound)); |
1615 | return variable; | |
7921925c | 1616 | } |
ce5b453a | 1617 | if (!blv) |
7921925c | 1618 | { |
ce5b453a SM |
1619 | blv = make_blv (sym, forwarded, valcontents); |
1620 | sym->redirect = SYMBOL_LOCALIZED; | |
1621 | SET_SYMBOL_BLV (sym, blv); | |
1622 | { | |
1623 | Lisp_Object symbol; | |
1624 | XSETSYMBOL (symbol, sym); /* In case `variable' is aliased. */ | |
1625 | if (let_shadows_global_binding_p (symbol)) | |
8b1e1112 SM |
1626 | message ("Making %s local to %s while let-bound!", |
1627 | SDATA (SYMBOL_NAME (variable)), | |
4b4deea2 | 1628 | SDATA (BVAR (current_buffer, name))); |
ce5b453a | 1629 | } |
7921925c | 1630 | } |
ce5b453a | 1631 | |
42e975f0 | 1632 | /* Make sure this buffer has its own value of symbol. */ |
ce5b453a | 1633 | XSETSYMBOL (variable, sym); /* Update in case of aliasing. */ |
4b4deea2 | 1634 | tem = Fassq (variable, BVAR (current_buffer, local_var_alist)); |
a33ef3ab | 1635 | if (NILP (tem)) |
7921925c | 1636 | { |
ce5b453a SM |
1637 | if (let_shadows_buffer_binding_p (sym)) |
1638 | message ("Making %s buffer-local while locally let-bound!", | |
1639 | SDATA (SYMBOL_NAME (variable))); | |
1640 | ||
a5d004a1 RS |
1641 | /* Swap out any local binding for some other buffer, and make |
1642 | sure the current value is permanently recorded, if it's the | |
1643 | default value. */ | |
d9c2a0f2 | 1644 | find_symbol_value (variable); |
a5d004a1 | 1645 | |
4b4deea2 | 1646 | BVAR (current_buffer, local_var_alist) |
ce5b453a | 1647 | = Fcons (Fcons (variable, XCDR (blv->defcell)), |
4b4deea2 | 1648 | BVAR (current_buffer, local_var_alist)); |
7921925c JB |
1649 | |
1650 | /* Make sure symbol does not think it is set up for this buffer; | |
42e975f0 | 1651 | force it to look once again for this buffer's value. */ |
ce5b453a SM |
1652 | if (current_buffer == XBUFFER (blv->where)) |
1653 | blv->where = Qnil; | |
1654 | /* blv->valcell = blv->defcell; | |
1655 | * SET_BLV_FOUND (blv, 0); */ | |
1656 | blv->found = 0; | |
7921925c | 1657 | } |
a5ca2b75 | 1658 | |
42e975f0 RS |
1659 | /* If the symbol forwards into a C variable, then load the binding |
1660 | for this buffer now. If C code modifies the variable before we | |
1661 | load the binding in, then that new value will clobber the default | |
1662 | binding the next time we unload it. */ | |
ce5b453a SM |
1663 | if (blv->fwd) |
1664 | swap_in_symval_forwarding (sym, blv); | |
a5ca2b75 | 1665 | |
d9c2a0f2 | 1666 | return variable; |
7921925c JB |
1667 | } |
1668 | ||
1669 | DEFUN ("kill-local-variable", Fkill_local_variable, Skill_local_variable, | |
8c1a1077 PJ |
1670 | 1, 1, "vKill Local Variable: ", |
1671 | doc: /* Make VARIABLE no longer have a separate value in the current buffer. | |
bfb96cb7 | 1672 | From now on the default value will apply in this buffer. Return VARIABLE. */) |
5842a27b | 1673 | (register Lisp_Object variable) |
7921925c | 1674 | { |
ce5b453a SM |
1675 | register Lisp_Object tem; |
1676 | struct Lisp_Buffer_Local_Value *blv; | |
ad97b375 | 1677 | struct Lisp_Symbol *sym; |
7921925c | 1678 | |
b7826503 | 1679 | CHECK_SYMBOL (variable); |
ce5b453a | 1680 | sym = XSYMBOL (variable); |
7921925c | 1681 | |
ce5b453a SM |
1682 | start: |
1683 | switch (sym->redirect) | |
7921925c | 1684 | { |
ce5b453a SM |
1685 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1686 | case SYMBOL_PLAINVAL: return variable; | |
1687 | case SYMBOL_FORWARDED: | |
1688 | { | |
1689 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
1690 | if (BUFFER_OBJFWDP (valcontents)) | |
1691 | { | |
1692 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
1693 | int idx = PER_BUFFER_IDX (offset); | |
1694 | ||
1695 | if (idx > 0) | |
1696 | { | |
1697 | SET_PER_BUFFER_VALUE_P (current_buffer, idx, 0); | |
1698 | PER_BUFFER_VALUE (current_buffer, offset) | |
1699 | = PER_BUFFER_DEFAULT (offset); | |
1700 | } | |
1701 | } | |
1702 | return variable; | |
1703 | } | |
1704 | case SYMBOL_LOCALIZED: | |
1705 | blv = SYMBOL_BLV (sym); | |
1706 | if (blv->frame_local) | |
1707 | return variable; | |
1708 | break; | |
1709 | default: abort (); | |
7921925c JB |
1710 | } |
1711 | ||
42e975f0 | 1712 | /* Get rid of this buffer's alist element, if any. */ |
ad97b375 | 1713 | XSETSYMBOL (variable, sym); /* Propagate variable indirection. */ |
4b4deea2 | 1714 | tem = Fassq (variable, BVAR (current_buffer, local_var_alist)); |
a33ef3ab | 1715 | if (!NILP (tem)) |
4b4deea2 TT |
1716 | BVAR (current_buffer, local_var_alist) |
1717 | = Fdelq (tem, BVAR (current_buffer, local_var_alist)); | |
7921925c | 1718 | |
42e975f0 RS |
1719 | /* If the symbol is set up with the current buffer's binding |
1720 | loaded, recompute its value. We have to do it now, or else | |
1721 | forwarded objects won't work right. */ | |
7921925c | 1722 | { |
ce5b453a SM |
1723 | Lisp_Object buf; XSETBUFFER (buf, current_buffer); |
1724 | if (EQ (buf, blv->where)) | |
79c83e03 | 1725 | { |
ce5b453a SM |
1726 | blv->where = Qnil; |
1727 | /* blv->valcell = blv->defcell; | |
1728 | * SET_BLV_FOUND (blv, 0); */ | |
1729 | blv->found = 0; | |
978dd578 | 1730 | find_symbol_value (variable); |
79c83e03 | 1731 | } |
7921925c JB |
1732 | } |
1733 | ||
d9c2a0f2 | 1734 | return variable; |
7921925c | 1735 | } |
62476adc | 1736 | |
b0c2d1c6 RS |
1737 | /* Lisp functions for creating and removing buffer-local variables. */ |
1738 | ||
ab795c65 GM |
1739 | /* Obsolete since 22.2. NB adjust doc of modify-frame-parameters |
1740 | when/if this is removed. */ | |
1741 | ||
b0c2d1c6 | 1742 | DEFUN ("make-variable-frame-local", Fmake_variable_frame_local, Smake_variable_frame_local, |
8c1a1077 PJ |
1743 | 1, 1, "vMake Variable Frame Local: ", |
1744 | doc: /* Enable VARIABLE to have frame-local bindings. | |
4d4d36b1 RS |
1745 | This does not create any frame-local bindings for VARIABLE, |
1746 | it just makes them possible. | |
1747 | ||
1748 | A frame-local binding is actually a frame parameter value. | |
1749 | If a frame F has a value for the frame parameter named VARIABLE, | |
1750 | that also acts as a frame-local binding for VARIABLE in F-- | |
1751 | provided this function has been called to enable VARIABLE | |
1752 | to have frame-local bindings at all. | |
1753 | ||
1754 | The only way to create a frame-local binding for VARIABLE in a frame | |
1755 | is to set the VARIABLE frame parameter of that frame. See | |
1756 | `modify-frame-parameters' for how to set frame parameters. | |
1757 | ||
a02a1384 GM |
1758 | Note that since Emacs 23.1, variables cannot be both buffer-local and |
1759 | frame-local any more (buffer-local bindings used to take precedence over | |
1760 | frame-local bindings). */) | |
5842a27b | 1761 | (register Lisp_Object variable) |
b0c2d1c6 | 1762 | { |
ce5b453a SM |
1763 | int forwarded; |
1764 | union Lisp_Val_Fwd valcontents; | |
ad97b375 | 1765 | struct Lisp_Symbol *sym; |
ce5b453a | 1766 | struct Lisp_Buffer_Local_Value *blv = NULL; |
b0c2d1c6 | 1767 | |
b7826503 | 1768 | CHECK_SYMBOL (variable); |
ce5b453a | 1769 | sym = XSYMBOL (variable); |
b0c2d1c6 | 1770 | |
ce5b453a SM |
1771 | start: |
1772 | switch (sym->redirect) | |
42e975f0 | 1773 | { |
ce5b453a SM |
1774 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1775 | case SYMBOL_PLAINVAL: | |
1776 | forwarded = 0; valcontents.value = SYMBOL_VAL (sym); | |
1777 | if (EQ (valcontents.value, Qunbound)) | |
1778 | valcontents.value = Qnil; | |
1779 | break; | |
1780 | case SYMBOL_LOCALIZED: | |
1781 | if (SYMBOL_BLV (sym)->frame_local) | |
1782 | return variable; | |
1783 | else | |
1784 | error ("Symbol %s may not be frame-local", | |
1785 | SDATA (SYMBOL_NAME (variable))); | |
1786 | case SYMBOL_FORWARDED: | |
1787 | forwarded = 1; valcontents.fwd = SYMBOL_FWD (sym); | |
1788 | if (KBOARD_OBJFWDP (valcontents.fwd) || BUFFER_OBJFWDP (valcontents.fwd)) | |
1789 | error ("Symbol %s may not be frame-local", | |
1790 | SDATA (SYMBOL_NAME (variable))); | |
1791 | break; | |
1792 | default: abort (); | |
42e975f0 | 1793 | } |
b0c2d1c6 | 1794 | |
ce5b453a SM |
1795 | if (sym->constant) |
1796 | error ("Symbol %s may not be frame-local", SDATA (SYMBOL_NAME (variable))); | |
1797 | ||
1798 | blv = make_blv (sym, forwarded, valcontents); | |
1799 | blv->frame_local = 1; | |
1800 | sym->redirect = SYMBOL_LOCALIZED; | |
1801 | SET_SYMBOL_BLV (sym, blv); | |
8b1e1112 SM |
1802 | { |
1803 | Lisp_Object symbol; | |
1804 | XSETSYMBOL (symbol, sym); /* In case `variable' is aliased. */ | |
1805 | if (let_shadows_global_binding_p (symbol)) | |
1806 | message ("Making %s frame-local while let-bound!", | |
1807 | SDATA (SYMBOL_NAME (variable))); | |
1808 | } | |
b0c2d1c6 RS |
1809 | return variable; |
1810 | } | |
1811 | ||
a7ca3326 | 1812 | DEFUN ("local-variable-p", Flocal_variable_p, Slocal_variable_p, |
8c1a1077 PJ |
1813 | 1, 2, 0, |
1814 | doc: /* Non-nil if VARIABLE has a local binding in buffer BUFFER. | |
1815 | BUFFER defaults to the current buffer. */) | |
5842a27b | 1816 | (register Lisp_Object variable, Lisp_Object buffer) |
62476adc | 1817 | { |
c48ead86 | 1818 | register struct buffer *buf; |
ad97b375 | 1819 | struct Lisp_Symbol *sym; |
c48ead86 KH |
1820 | |
1821 | if (NILP (buffer)) | |
1822 | buf = current_buffer; | |
1823 | else | |
1824 | { | |
b7826503 | 1825 | CHECK_BUFFER (buffer); |
c48ead86 KH |
1826 | buf = XBUFFER (buffer); |
1827 | } | |
62476adc | 1828 | |
b7826503 | 1829 | CHECK_SYMBOL (variable); |
ce5b453a | 1830 | sym = XSYMBOL (variable); |
be95bee9 | 1831 | |
ce5b453a SM |
1832 | start: |
1833 | switch (sym->redirect) | |
c48ead86 | 1834 | { |
ce5b453a SM |
1835 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1836 | case SYMBOL_PLAINVAL: return Qnil; | |
1837 | case SYMBOL_LOCALIZED: | |
1838 | { | |
1839 | Lisp_Object tail, elt, tmp; | |
1840 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
1841 | XSETBUFFER (tmp, buf); | |
8d1d9587 | 1842 | XSETSYMBOL (variable, sym); /* Update in case of aliasing. */ |
aa3830c4 | 1843 | |
4b4deea2 | 1844 | for (tail = BVAR (buf, local_var_alist); CONSP (tail); tail = XCDR (tail)) |
ce5b453a SM |
1845 | { |
1846 | elt = XCAR (tail); | |
1847 | if (EQ (variable, XCAR (elt))) | |
1848 | { | |
1849 | eassert (!blv->frame_local); | |
1850 | eassert (BLV_FOUND (blv) || !EQ (blv->where, tmp)); | |
1851 | return Qt; | |
1852 | } | |
1853 | } | |
1854 | eassert (!BLV_FOUND (blv) || !EQ (blv->where, tmp)); | |
1855 | return Qnil; | |
1856 | } | |
1857 | case SYMBOL_FORWARDED: | |
1858 | { | |
1859 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
1860 | if (BUFFER_OBJFWDP (valcontents)) | |
1861 | { | |
1862 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
1863 | int idx = PER_BUFFER_IDX (offset); | |
1864 | if (idx == -1 || PER_BUFFER_VALUE_P (buf, idx)) | |
1865 | return Qt; | |
1866 | } | |
1867 | return Qnil; | |
1868 | } | |
1869 | default: abort (); | |
c48ead86 | 1870 | } |
62476adc | 1871 | } |
f4f04cee RS |
1872 | |
1873 | DEFUN ("local-variable-if-set-p", Flocal_variable_if_set_p, Slocal_variable_if_set_p, | |
8c1a1077 | 1874 | 1, 2, 0, |
1dc5ba01 LT |
1875 | doc: /* Non-nil if VARIABLE will be local in buffer BUFFER when set there. |
1876 | More precisely, this means that setting the variable \(with `set' or`setq'), | |
1877 | while it does not have a `let'-style binding that was made in BUFFER, | |
1878 | will produce a buffer local binding. See Info node | |
1879 | `(elisp)Creating Buffer-Local'. | |
8c1a1077 | 1880 | BUFFER defaults to the current buffer. */) |
5842a27b | 1881 | (register Lisp_Object variable, Lisp_Object buffer) |
f4f04cee | 1882 | { |
ad97b375 | 1883 | struct Lisp_Symbol *sym; |
f4f04cee | 1884 | |
b7826503 | 1885 | CHECK_SYMBOL (variable); |
ce5b453a | 1886 | sym = XSYMBOL (variable); |
f4f04cee | 1887 | |
ce5b453a SM |
1888 | start: |
1889 | switch (sym->redirect) | |
f4f04cee | 1890 | { |
ce5b453a SM |
1891 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1892 | case SYMBOL_PLAINVAL: return Qnil; | |
1893 | case SYMBOL_LOCALIZED: | |
1894 | { | |
1895 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
1896 | if (blv->local_if_set) | |
1897 | return Qt; | |
1898 | XSETSYMBOL (variable, sym); /* Update in case of aliasing. */ | |
1899 | return Flocal_variable_p (variable, buffer); | |
1900 | } | |
1901 | case SYMBOL_FORWARDED: | |
1902 | /* All BUFFER_OBJFWD slots become local if they are set. */ | |
1903 | return (BUFFER_OBJFWDP (SYMBOL_FWD (sym)) ? Qt : Qnil); | |
1904 | default: abort (); | |
f4f04cee | 1905 | } |
f4f04cee | 1906 | } |
6b61353c KH |
1907 | |
1908 | DEFUN ("variable-binding-locus", Fvariable_binding_locus, Svariable_binding_locus, | |
1909 | 1, 1, 0, | |
1910 | doc: /* Return a value indicating where VARIABLE's current binding comes from. | |
1911 | If the current binding is buffer-local, the value is the current buffer. | |
1912 | If the current binding is frame-local, the value is the selected frame. | |
1913 | If the current binding is global (the default), the value is nil. */) | |
5842a27b | 1914 | (register Lisp_Object variable) |
6b61353c | 1915 | { |
ad97b375 | 1916 | struct Lisp_Symbol *sym; |
6b61353c KH |
1917 | |
1918 | CHECK_SYMBOL (variable); | |
ce5b453a | 1919 | sym = XSYMBOL (variable); |
6b61353c KH |
1920 | |
1921 | /* Make sure the current binding is actually swapped in. */ | |
1922 | find_symbol_value (variable); | |
1923 | ||
ce5b453a SM |
1924 | start: |
1925 | switch (sym->redirect) | |
6b61353c | 1926 | { |
ce5b453a SM |
1927 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1928 | case SYMBOL_PLAINVAL: return Qnil; | |
1929 | case SYMBOL_FORWARDED: | |
1930 | { | |
1931 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
1932 | if (KBOARD_OBJFWDP (valcontents)) | |
1933 | return Fframe_terminal (Fselected_frame ()); | |
1934 | else if (!BUFFER_OBJFWDP (valcontents)) | |
1935 | return Qnil; | |
1936 | } | |
1937 | /* FALLTHROUGH */ | |
1938 | case SYMBOL_LOCALIZED: | |
6b61353c KH |
1939 | /* For a local variable, record both the symbol and which |
1940 | buffer's or frame's value we are saving. */ | |
1941 | if (!NILP (Flocal_variable_p (variable, Qnil))) | |
1942 | return Fcurrent_buffer (); | |
ce5b453a SM |
1943 | else if (sym->redirect == SYMBOL_LOCALIZED |
1944 | && BLV_FOUND (SYMBOL_BLV (sym))) | |
1945 | return SYMBOL_BLV (sym)->where; | |
1946 | else | |
1947 | return Qnil; | |
1948 | default: abort (); | |
6b61353c | 1949 | } |
6b61353c | 1950 | } |
2a42d440 | 1951 | |
c40bb1ba KL |
1952 | /* This code is disabled now that we use the selected frame to return |
1953 | keyboard-local-values. */ | |
1954 | #if 0 | |
f57e2426 | 1955 | extern struct terminal *get_terminal (Lisp_Object display, int); |
2a42d440 | 1956 | |
a7ca3326 | 1957 | DEFUN ("terminal-local-value", Fterminal_local_value, |
16a97296 | 1958 | Sterminal_local_value, 2, 2, 0, |
6ed8eeff | 1959 | doc: /* Return the terminal-local value of SYMBOL on TERMINAL. |
2a42d440 KL |
1960 | If SYMBOL is not a terminal-local variable, then return its normal |
1961 | value, like `symbol-value'. | |
1962 | ||
708e05dc | 1963 | TERMINAL may be a terminal object, a frame, or nil (meaning the |
6ed8eeff | 1964 | selected frame's terminal device). */) |
5842a27b | 1965 | (Lisp_Object symbol, Lisp_Object terminal) |
2a42d440 KL |
1966 | { |
1967 | Lisp_Object result; | |
6ed8eeff KL |
1968 | struct terminal *t = get_terminal (terminal, 1); |
1969 | push_kboard (t->kboard); | |
2a42d440 | 1970 | result = Fsymbol_value (symbol); |
256c9c3a | 1971 | pop_kboard (); |
2a42d440 KL |
1972 | return result; |
1973 | } | |
1974 | ||
a7ca3326 | 1975 | DEFUN ("set-terminal-local-value", Fset_terminal_local_value, |
16a97296 | 1976 | Sset_terminal_local_value, 3, 3, 0, |
6ed8eeff | 1977 | doc: /* Set the terminal-local binding of SYMBOL on TERMINAL to VALUE. |
2a42d440 | 1978 | If VARIABLE is not a terminal-local variable, then set its normal |
7e59217d KL |
1979 | binding, like `set'. |
1980 | ||
708e05dc | 1981 | TERMINAL may be a terminal object, a frame, or nil (meaning the |
6ed8eeff | 1982 | selected frame's terminal device). */) |
5842a27b | 1983 | (Lisp_Object symbol, Lisp_Object terminal, Lisp_Object value) |
2a42d440 KL |
1984 | { |
1985 | Lisp_Object result; | |
6ed8eeff | 1986 | struct terminal *t = get_terminal (terminal, 1); |
256c9c3a | 1987 | push_kboard (d->kboard); |
2a42d440 | 1988 | result = Fset (symbol, value); |
256c9c3a | 1989 | pop_kboard (); |
2a42d440 KL |
1990 | return result; |
1991 | } | |
c40bb1ba | 1992 | #endif |
7921925c | 1993 | \f |
ffd56f97 JB |
1994 | /* Find the function at the end of a chain of symbol function indirections. */ |
1995 | ||
1996 | /* If OBJECT is a symbol, find the end of its function chain and | |
1997 | return the value found there. If OBJECT is not a symbol, just | |
1998 | return it. If there is a cycle in the function chain, signal a | |
1999 | cyclic-function-indirection error. | |
2000 | ||
2001 | This is like Findirect_function, except that it doesn't signal an | |
2002 | error if the chain ends up unbound. */ | |
2003 | Lisp_Object | |
971de7fb | 2004 | indirect_function (register Lisp_Object object) |
ffd56f97 | 2005 | { |
eb8c3be9 | 2006 | Lisp_Object tortoise, hare; |
ffd56f97 | 2007 | |
eb8c3be9 | 2008 | hare = tortoise = object; |
ffd56f97 JB |
2009 | |
2010 | for (;;) | |
2011 | { | |
e9ebc175 | 2012 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
2013 | break; |
2014 | hare = XSYMBOL (hare)->function; | |
e9ebc175 | 2015 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
2016 | break; |
2017 | hare = XSYMBOL (hare)->function; | |
2018 | ||
eb8c3be9 | 2019 | tortoise = XSYMBOL (tortoise)->function; |
ffd56f97 | 2020 | |
eb8c3be9 | 2021 | if (EQ (hare, tortoise)) |
740ef0b5 | 2022 | xsignal1 (Qcyclic_function_indirection, object); |
ffd56f97 JB |
2023 | } |
2024 | ||
2025 | return hare; | |
2026 | } | |
2027 | ||
a7ca3326 | 2028 | DEFUN ("indirect-function", Findirect_function, Sindirect_function, 1, 2, 0, |
8c1a1077 | 2029 | doc: /* Return the function at the end of OBJECT's function chain. |
0ddb0ae8 TTN |
2030 | If OBJECT is not a symbol, just return it. Otherwise, follow all |
2031 | function indirections to find the final function binding and return it. | |
2032 | If the final symbol in the chain is unbound, signal a void-function error. | |
2033 | Optional arg NOERROR non-nil means to return nil instead of signalling. | |
8c1a1077 PJ |
2034 | Signal a cyclic-function-indirection error if there is a loop in the |
2035 | function chain of symbols. */) | |
5842a27b | 2036 | (register Lisp_Object object, Lisp_Object noerror) |
ffd56f97 JB |
2037 | { |
2038 | Lisp_Object result; | |
2039 | ||
64de53d8 KS |
2040 | /* Optimize for no indirection. */ |
2041 | result = object; | |
2042 | if (SYMBOLP (result) && !EQ (result, Qunbound) | |
2043 | && (result = XSYMBOL (result)->function, SYMBOLP (result))) | |
2044 | result = indirect_function (result); | |
2045 | if (!EQ (result, Qunbound)) | |
2046 | return result; | |
ffd56f97 | 2047 | |
64de53d8 | 2048 | if (NILP (noerror)) |
740ef0b5 | 2049 | xsignal1 (Qvoid_function, object); |
ffd56f97 | 2050 | |
64de53d8 | 2051 | return Qnil; |
ffd56f97 JB |
2052 | } |
2053 | \f | |
7921925c JB |
2054 | /* Extract and set vector and string elements */ |
2055 | ||
a7ca3326 | 2056 | DEFUN ("aref", Faref, Saref, 2, 2, 0, |
8c1a1077 PJ |
2057 | doc: /* Return the element of ARRAY at index IDX. |
2058 | ARRAY may be a vector, a string, a char-table, a bool-vector, | |
2059 | or a byte-code object. IDX starts at 0. */) | |
5842a27b | 2060 | (register Lisp_Object array, Lisp_Object idx) |
7921925c | 2061 | { |
ace1712c | 2062 | register EMACS_INT idxval; |
7921925c | 2063 | |
b7826503 | 2064 | CHECK_NUMBER (idx); |
7921925c | 2065 | idxval = XINT (idx); |
e9ebc175 | 2066 | if (STRINGP (array)) |
7921925c | 2067 | { |
ace1712c EZ |
2068 | int c; |
2069 | EMACS_INT idxval_byte; | |
25638b07 | 2070 | |
d5db4077 | 2071 | if (idxval < 0 || idxval >= SCHARS (array)) |
c24e4efe | 2072 | args_out_of_range (array, idx); |
25638b07 | 2073 | if (! STRING_MULTIBYTE (array)) |
d5db4077 | 2074 | return make_number ((unsigned char) SREF (array, idxval)); |
25638b07 RS |
2075 | idxval_byte = string_char_to_byte (array, idxval); |
2076 | ||
62a6e103 | 2077 | c = STRING_CHAR (SDATA (array) + idxval_byte); |
25638b07 | 2078 | return make_number (c); |
7921925c | 2079 | } |
4d276982 RS |
2080 | else if (BOOL_VECTOR_P (array)) |
2081 | { | |
2082 | int val; | |
4d276982 RS |
2083 | |
2084 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
2085 | args_out_of_range (array, idx); | |
2086 | ||
b9ed2177 AS |
2087 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR]; |
2088 | return (val & (1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR)) ? Qt : Qnil); | |
4d276982 RS |
2089 | } |
2090 | else if (CHAR_TABLE_P (array)) | |
2091 | { | |
e6e1f521 KH |
2092 | CHECK_CHARACTER (idx); |
2093 | return CHAR_TABLE_REF (array, idxval); | |
4d276982 | 2094 | } |
7921925c | 2095 | else |
c24e4efe | 2096 | { |
6bbd7a29 | 2097 | int size = 0; |
7f358972 | 2098 | if (VECTORP (array)) |
77b37c05 | 2099 | size = ASIZE (array); |
876c194c | 2100 | else if (COMPILEDP (array)) |
77b37c05 | 2101 | size = ASIZE (array) & PSEUDOVECTOR_SIZE_MASK; |
7f358972 RS |
2102 | else |
2103 | wrong_type_argument (Qarrayp, array); | |
2104 | ||
2105 | if (idxval < 0 || idxval >= size) | |
c24e4efe | 2106 | args_out_of_range (array, idx); |
b9598260 | 2107 | return AREF (array, idxval); |
c24e4efe | 2108 | } |
7921925c JB |
2109 | } |
2110 | ||
a7ca3326 | 2111 | DEFUN ("aset", Faset, Saset, 3, 3, 0, |
8c1a1077 | 2112 | doc: /* Store into the element of ARRAY at index IDX the value NEWELT. |
bfb96cb7 FP |
2113 | Return NEWELT. ARRAY may be a vector, a string, a char-table or a |
2114 | bool-vector. IDX starts at 0. */) | |
5842a27b | 2115 | (register Lisp_Object array, Lisp_Object idx, Lisp_Object newelt) |
7921925c | 2116 | { |
ace1712c | 2117 | register EMACS_INT idxval; |
7921925c | 2118 | |
b7826503 | 2119 | CHECK_NUMBER (idx); |
7921925c | 2120 | idxval = XINT (idx); |
0c64a8cd | 2121 | CHECK_ARRAY (array, Qarrayp); |
7921925c JB |
2122 | CHECK_IMPURE (array); |
2123 | ||
e9ebc175 | 2124 | if (VECTORP (array)) |
c24e4efe | 2125 | { |
77b37c05 | 2126 | if (idxval < 0 || idxval >= ASIZE (array)) |
c24e4efe KH |
2127 | args_out_of_range (array, idx); |
2128 | XVECTOR (array)->contents[idxval] = newelt; | |
2129 | } | |
4d276982 RS |
2130 | else if (BOOL_VECTOR_P (array)) |
2131 | { | |
2132 | int val; | |
4d276982 RS |
2133 | |
2134 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
2135 | args_out_of_range (array, idx); | |
2136 | ||
b9ed2177 | 2137 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR]; |
4d276982 RS |
2138 | |
2139 | if (! NILP (newelt)) | |
b9ed2177 | 2140 | val |= 1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR); |
4d276982 | 2141 | else |
b9ed2177 AS |
2142 | val &= ~(1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR)); |
2143 | XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR] = val; | |
4d276982 RS |
2144 | } |
2145 | else if (CHAR_TABLE_P (array)) | |
2146 | { | |
e6e1f521 KH |
2147 | CHECK_CHARACTER (idx); |
2148 | CHAR_TABLE_SET (array, idxval, newelt); | |
4d276982 | 2149 | } |
25638b07 RS |
2150 | else if (STRING_MULTIBYTE (array)) |
2151 | { | |
ace1712c | 2152 | EMACS_INT idxval_byte, prev_bytes, new_bytes, nbytes; |
3c9de1af | 2153 | unsigned char workbuf[MAX_MULTIBYTE_LENGTH], *p0 = workbuf, *p1; |
25638b07 | 2154 | |
d5db4077 | 2155 | if (idxval < 0 || idxval >= SCHARS (array)) |
25638b07 | 2156 | args_out_of_range (array, idx); |
d9130605 | 2157 | CHECK_CHARACTER (newelt); |
25638b07 | 2158 | |
c6464167 MB |
2159 | nbytes = SBYTES (array); |
2160 | ||
25638b07 | 2161 | idxval_byte = string_char_to_byte (array, idxval); |
29f44a37 | 2162 | p1 = SDATA (array) + idxval_byte; |
aa3830c4 | 2163 | prev_bytes = BYTES_BY_CHAR_HEAD (*p1); |
3c9de1af KH |
2164 | new_bytes = CHAR_STRING (XINT (newelt), p0); |
2165 | if (prev_bytes != new_bytes) | |
2166 | { | |
2167 | /* We must relocate the string data. */ | |
ace1712c | 2168 | EMACS_INT nchars = SCHARS (array); |
3c9de1af | 2169 | unsigned char *str; |
f1a87317 | 2170 | USE_SAFE_ALLOCA; |
3c9de1af | 2171 | |
f1a87317 | 2172 | SAFE_ALLOCA (str, unsigned char *, nbytes); |
72af86bd | 2173 | memcpy (str, SDATA (array), nbytes); |
3c9de1af KH |
2174 | allocate_string_data (XSTRING (array), nchars, |
2175 | nbytes + new_bytes - prev_bytes); | |
72af86bd | 2176 | memcpy (SDATA (array), str, idxval_byte); |
d5db4077 | 2177 | p1 = SDATA (array) + idxval_byte; |
72af86bd AS |
2178 | memcpy (p1 + new_bytes, str + idxval_byte + prev_bytes, |
2179 | nbytes - (idxval_byte + prev_bytes)); | |
233f3db6 | 2180 | SAFE_FREE (); |
3c9de1af KH |
2181 | clear_string_char_byte_cache (); |
2182 | } | |
2183 | while (new_bytes--) | |
2184 | *p1++ = *p0++; | |
25638b07 | 2185 | } |
7921925c JB |
2186 | else |
2187 | { | |
d5db4077 | 2188 | if (idxval < 0 || idxval >= SCHARS (array)) |
c24e4efe | 2189 | args_out_of_range (array, idx); |
b7826503 | 2190 | CHECK_NUMBER (newelt); |
3c9de1af | 2191 | |
476e47ca | 2192 | if (XINT (newelt) >= 0 && ! SINGLE_BYTE_CHAR_P (XINT (newelt))) |
5dff5999 KH |
2193 | { |
2194 | int i; | |
2195 | ||
2196 | for (i = SBYTES (array) - 1; i >= 0; i--) | |
2197 | if (SREF (array, i) >= 0x80) | |
2198 | args_out_of_range (array, newelt); | |
2199 | /* ARRAY is an ASCII string. Convert it to a multibyte | |
2200 | string, and try `aset' again. */ | |
2201 | STRING_SET_MULTIBYTE (array); | |
2202 | return Faset (array, idx, newelt); | |
2203 | } | |
476e47ca | 2204 | SSET (array, idxval, XINT (newelt)); |
7921925c JB |
2205 | } |
2206 | ||
2207 | return newelt; | |
2208 | } | |
7921925c JB |
2209 | \f |
2210 | /* Arithmetic functions */ | |
2211 | ||
2212 | enum comparison { equal, notequal, less, grtr, less_or_equal, grtr_or_equal }; | |
2213 | ||
112396d6 | 2214 | static Lisp_Object |
971de7fb | 2215 | arithcompare (Lisp_Object num1, Lisp_Object num2, enum comparison comparison) |
7921925c | 2216 | { |
6bbd7a29 | 2217 | double f1 = 0, f2 = 0; |
7921925c JB |
2218 | int floatp = 0; |
2219 | ||
b7826503 PJ |
2220 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1); |
2221 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2); | |
7921925c | 2222 | |
e9ebc175 | 2223 | if (FLOATP (num1) || FLOATP (num2)) |
7921925c JB |
2224 | { |
2225 | floatp = 1; | |
7539e11f KR |
2226 | f1 = (FLOATP (num1)) ? XFLOAT_DATA (num1) : XINT (num1); |
2227 | f2 = (FLOATP (num2)) ? XFLOAT_DATA (num2) : XINT (num2); | |
7921925c | 2228 | } |
7921925c JB |
2229 | |
2230 | switch (comparison) | |
2231 | { | |
2232 | case equal: | |
2233 | if (floatp ? f1 == f2 : XINT (num1) == XINT (num2)) | |
2234 | return Qt; | |
2235 | return Qnil; | |
2236 | ||
2237 | case notequal: | |
2238 | if (floatp ? f1 != f2 : XINT (num1) != XINT (num2)) | |
2239 | return Qt; | |
2240 | return Qnil; | |
2241 | ||
2242 | case less: | |
2243 | if (floatp ? f1 < f2 : XINT (num1) < XINT (num2)) | |
2244 | return Qt; | |
2245 | return Qnil; | |
2246 | ||
2247 | case less_or_equal: | |
2248 | if (floatp ? f1 <= f2 : XINT (num1) <= XINT (num2)) | |
2249 | return Qt; | |
2250 | return Qnil; | |
2251 | ||
2252 | case grtr: | |
2253 | if (floatp ? f1 > f2 : XINT (num1) > XINT (num2)) | |
2254 | return Qt; | |
2255 | return Qnil; | |
2256 | ||
2257 | case grtr_or_equal: | |
2258 | if (floatp ? f1 >= f2 : XINT (num1) >= XINT (num2)) | |
2259 | return Qt; | |
2260 | return Qnil; | |
25e40a4b JB |
2261 | |
2262 | default: | |
2263 | abort (); | |
7921925c JB |
2264 | } |
2265 | } | |
2266 | ||
2267 | DEFUN ("=", Feqlsign, Seqlsign, 2, 2, 0, | |
8c1a1077 | 2268 | doc: /* Return t if two args, both numbers or markers, are equal. */) |
5842a27b | 2269 | (register Lisp_Object num1, Lisp_Object num2) |
7921925c JB |
2270 | { |
2271 | return arithcompare (num1, num2, equal); | |
2272 | } | |
2273 | ||
a7ca3326 | 2274 | DEFUN ("<", Flss, Slss, 2, 2, 0, |
8c1a1077 | 2275 | doc: /* Return t if first arg is less than second arg. Both must be numbers or markers. */) |
5842a27b | 2276 | (register Lisp_Object num1, Lisp_Object num2) |
7921925c JB |
2277 | { |
2278 | return arithcompare (num1, num2, less); | |
2279 | } | |
2280 | ||
a7ca3326 | 2281 | DEFUN (">", Fgtr, Sgtr, 2, 2, 0, |
8c1a1077 | 2282 | doc: /* Return t if first arg is greater 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, grtr); | |
2286 | } | |
2287 | ||
a7ca3326 | 2288 | DEFUN ("<=", Fleq, Sleq, 2, 2, 0, |
8c1a1077 PJ |
2289 | doc: /* Return t if first arg is less than or equal to second arg. |
2290 | Both must be numbers or markers. */) | |
5842a27b | 2291 | (register Lisp_Object num1, Lisp_Object num2) |
7921925c JB |
2292 | { |
2293 | return arithcompare (num1, num2, less_or_equal); | |
2294 | } | |
2295 | ||
a7ca3326 | 2296 | DEFUN (">=", Fgeq, Sgeq, 2, 2, 0, |
8c1a1077 PJ |
2297 | doc: /* Return t if first arg is greater than or equal to second arg. |
2298 | Both must be numbers or markers. */) | |
5842a27b | 2299 | (register Lisp_Object num1, Lisp_Object num2) |
7921925c JB |
2300 | { |
2301 | return arithcompare (num1, num2, grtr_or_equal); | |
2302 | } | |
2303 | ||
2304 | DEFUN ("/=", Fneq, Sneq, 2, 2, 0, | |
8c1a1077 | 2305 | doc: /* Return t if first arg is not equal to second arg. Both must be numbers or markers. */) |
5842a27b | 2306 | (register Lisp_Object num1, Lisp_Object num2) |
7921925c JB |
2307 | { |
2308 | return arithcompare (num1, num2, notequal); | |
2309 | } | |
2310 | ||
a7ca3326 | 2311 | DEFUN ("zerop", Fzerop, Szerop, 1, 1, 0, |
8c1a1077 | 2312 | doc: /* Return t if NUMBER is zero. */) |
5842a27b | 2313 | (register Lisp_Object number) |
7921925c | 2314 | { |
b7826503 | 2315 | CHECK_NUMBER_OR_FLOAT (number); |
7921925c | 2316 | |
d9c2a0f2 | 2317 | if (FLOATP (number)) |
7921925c | 2318 | { |
7539e11f | 2319 | if (XFLOAT_DATA (number) == 0.0) |
7921925c JB |
2320 | return Qt; |
2321 | return Qnil; | |
2322 | } | |
7921925c | 2323 | |
d9c2a0f2 | 2324 | if (!XINT (number)) |
7921925c JB |
2325 | return Qt; |
2326 | return Qnil; | |
2327 | } | |
2328 | \f | |
70e9f399 RS |
2329 | /* Convert between long values and pairs of Lisp integers. |
2330 | Note that long_to_cons returns a single Lisp integer | |
2331 | when the value fits in one. */ | |
51cf3e31 JB |
2332 | |
2333 | Lisp_Object | |
971de7fb | 2334 | long_to_cons (long unsigned int i) |
51cf3e31 | 2335 | { |
9bc7166b | 2336 | unsigned long top = i >> 16; |
51cf3e31 JB |
2337 | unsigned int bot = i & 0xFFFF; |
2338 | if (top == 0) | |
2339 | return make_number (bot); | |
b42cfa11 | 2340 | if (top == (unsigned long)-1 >> 16) |
51cf3e31 JB |
2341 | return Fcons (make_number (-1), make_number (bot)); |
2342 | return Fcons (make_number (top), make_number (bot)); | |
2343 | } | |
2344 | ||
2345 | unsigned long | |
971de7fb | 2346 | cons_to_long (Lisp_Object c) |
51cf3e31 | 2347 | { |
878a80cc | 2348 | Lisp_Object top, bot; |
51cf3e31 JB |
2349 | if (INTEGERP (c)) |
2350 | return XINT (c); | |
7539e11f KR |
2351 | top = XCAR (c); |
2352 | bot = XCDR (c); | |
51cf3e31 | 2353 | if (CONSP (bot)) |
7539e11f | 2354 | bot = XCAR (bot); |
51cf3e31 JB |
2355 | return ((XINT (top) << 16) | XINT (bot)); |
2356 | } | |
2357 | \f | |
a7ca3326 | 2358 | DEFUN ("number-to-string", Fnumber_to_string, Snumber_to_string, 1, 1, 0, |
bfb96cb7 | 2359 | doc: /* Return the decimal representation of NUMBER as a string. |
8c1a1077 PJ |
2360 | Uses a minus sign if negative. |
2361 | NUMBER may be an integer or a floating point number. */) | |
5842a27b | 2362 | (Lisp_Object number) |
7921925c | 2363 | { |
6030ce64 | 2364 | char buffer[VALBITS]; |
7921925c | 2365 | |
b7826503 | 2366 | CHECK_NUMBER_OR_FLOAT (number); |
7921925c | 2367 | |
d9c2a0f2 | 2368 | if (FLOATP (number)) |
7921925c | 2369 | { |
6e8e6bf2 | 2370 | char pigbuf[FLOAT_TO_STRING_BUFSIZE]; |
7921925c | 2371 | |
7539e11f | 2372 | float_to_string (pigbuf, XFLOAT_DATA (number)); |
7403b5c8 | 2373 | return build_string (pigbuf); |
7921925c | 2374 | } |
7921925c | 2375 | |
c2982e87 | 2376 | sprintf (buffer, "%"pI"d", XINT (number)); |
7921925c JB |
2377 | return build_string (buffer); |
2378 | } | |
2379 | ||
a7ca3326 | 2380 | DEFUN ("string-to-number", Fstring_to_number, Sstring_to_number, 1, 2, 0, |
558ee900 | 2381 | doc: /* Parse STRING as a decimal number and return the number. |
8c1a1077 | 2382 | This parses both integers and floating point numbers. |
be95bee9 | 2383 | It ignores leading spaces and tabs, and all trailing chars. |
8c1a1077 PJ |
2384 | |
2385 | If BASE, interpret STRING as a number in that base. If BASE isn't | |
2386 | present, base 10 is used. BASE must be between 2 and 16 (inclusive). | |
be95bee9 | 2387 | If the base used is not 10, STRING is always parsed as integer. */) |
5842a27b | 2388 | (register Lisp_Object string, Lisp_Object base) |
7921925c | 2389 | { |
57ace6d0 | 2390 | register char *p; |
342858a5 | 2391 | register int b; |
452f4150 | 2392 | Lisp_Object val; |
25e40a4b | 2393 | |
b7826503 | 2394 | CHECK_STRING (string); |
7921925c | 2395 | |
3883fbeb RS |
2396 | if (NILP (base)) |
2397 | b = 10; | |
2398 | else | |
2399 | { | |
b7826503 | 2400 | CHECK_NUMBER (base); |
3883fbeb RS |
2401 | b = XINT (base); |
2402 | if (b < 2 || b > 16) | |
740ef0b5 | 2403 | xsignal1 (Qargs_out_of_range, base); |
3883fbeb RS |
2404 | } |
2405 | ||
57ace6d0 | 2406 | p = SSDATA (string); |
0a3e4d65 | 2407 | while (*p == ' ' || *p == '\t') |
25e40a4b JB |
2408 | p++; |
2409 | ||
452f4150 PE |
2410 | val = string_to_number (p, b, 1); |
2411 | return NILP (val) ? make_number (0) : val; | |
7921925c | 2412 | } |
7403b5c8 | 2413 | \f |
7921925c | 2414 | enum arithop |
7a283f36 GM |
2415 | { |
2416 | Aadd, | |
2417 | Asub, | |
2418 | Amult, | |
2419 | Adiv, | |
2420 | Alogand, | |
2421 | Alogior, | |
2422 | Alogxor, | |
2423 | Amax, | |
2424 | Amin | |
2425 | }; | |
2426 | ||
c5101a77 PE |
2427 | static Lisp_Object float_arith_driver (double, size_t, enum arithop, |
2428 | size_t, Lisp_Object *); | |
112396d6 | 2429 | static Lisp_Object |
c5101a77 | 2430 | arith_driver (enum arithop code, size_t nargs, register Lisp_Object *args) |
7921925c JB |
2431 | { |
2432 | register Lisp_Object val; | |
c5101a77 | 2433 | register size_t argnum; |
7a283f36 | 2434 | register EMACS_INT accum = 0; |
5260234d | 2435 | register EMACS_INT next; |
7921925c | 2436 | |
0ae6bdee PE |
2437 | int overflow = 0; |
2438 | size_t ok_args; | |
2439 | EMACS_INT ok_accum; | |
2440 | ||
0220c518 | 2441 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2442 | { |
2443 | case Alogior: | |
2444 | case Alogxor: | |
2445 | case Aadd: | |
2446 | case Asub: | |
7a283f36 GM |
2447 | accum = 0; |
2448 | break; | |
7921925c | 2449 | case Amult: |
7a283f36 GM |
2450 | accum = 1; |
2451 | break; | |
7921925c | 2452 | case Alogand: |
7a283f36 GM |
2453 | accum = -1; |
2454 | break; | |
2455 | default: | |
2456 | break; | |
7921925c JB |
2457 | } |
2458 | ||
2459 | for (argnum = 0; argnum < nargs; argnum++) | |
2460 | { | |
0ae6bdee PE |
2461 | if (! overflow) |
2462 | { | |
2463 | ok_args = argnum; | |
2464 | ok_accum = accum; | |
2465 | } | |
2466 | ||
7a283f36 GM |
2467 | /* Using args[argnum] as argument to CHECK_NUMBER_... */ |
2468 | val = args[argnum]; | |
b7826503 | 2469 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val); |
7921925c | 2470 | |
7a283f36 | 2471 | if (FLOATP (val)) |
0ae6bdee | 2472 | return float_arith_driver (ok_accum, ok_args, code, |
7a283f36 GM |
2473 | nargs, args); |
2474 | args[argnum] = val; | |
7921925c | 2475 | next = XINT (args[argnum]); |
0220c518 | 2476 | switch (SWITCH_ENUM_CAST (code)) |
7921925c | 2477 | { |
7a283f36 | 2478 | case Aadd: |
0ae6bdee PE |
2479 | if (INT_ADD_OVERFLOW (accum, next)) |
2480 | { | |
2481 | overflow = 1; | |
2482 | accum &= INTMASK; | |
2483 | } | |
7a283f36 GM |
2484 | accum += next; |
2485 | break; | |
7921925c | 2486 | case Asub: |
0ae6bdee PE |
2487 | if (INT_SUBTRACT_OVERFLOW (accum, next)) |
2488 | { | |
2489 | overflow = 1; | |
2490 | accum &= INTMASK; | |
2491 | } | |
e64981da | 2492 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c | 2493 | break; |
7a283f36 | 2494 | case Amult: |
0ae6bdee PE |
2495 | if (INT_MULTIPLY_OVERFLOW (accum, next)) |
2496 | { | |
c8a9ca5a | 2497 | EMACS_UINT a = accum, b = next, ab = a * b; |
0ae6bdee | 2498 | overflow = 1; |
c8a9ca5a | 2499 | accum = ab & INTMASK; |
0ae6bdee PE |
2500 | } |
2501 | else | |
2502 | accum *= next; | |
7a283f36 | 2503 | break; |
7921925c | 2504 | case Adiv: |
7a283f36 GM |
2505 | if (!argnum) |
2506 | accum = next; | |
87fbf902 RS |
2507 | else |
2508 | { | |
2509 | if (next == 0) | |
740ef0b5 | 2510 | xsignal0 (Qarith_error); |
87fbf902 RS |
2511 | accum /= next; |
2512 | } | |
7921925c | 2513 | break; |
7a283f36 GM |
2514 | case Alogand: |
2515 | accum &= next; | |
2516 | break; | |
2517 | case Alogior: | |
2518 | accum |= next; | |
2519 | break; | |
2520 | case Alogxor: | |
2521 | accum ^= next; | |
2522 | break; | |
2523 | case Amax: | |
2524 | if (!argnum || next > accum) | |
2525 | accum = next; | |
2526 | break; | |
2527 | case Amin: | |
2528 | if (!argnum || next < accum) | |
2529 | accum = next; | |
2530 | break; | |
7921925c JB |
2531 | } |
2532 | } | |
2533 | ||
f187f1f7 | 2534 | XSETINT (val, accum); |
7921925c JB |
2535 | return val; |
2536 | } | |
2537 | ||
1a2f2d33 KH |
2538 | #undef isnan |
2539 | #define isnan(x) ((x) != (x)) | |
2540 | ||
7a283f36 | 2541 | static Lisp_Object |
c5101a77 PE |
2542 | float_arith_driver (double accum, register size_t argnum, enum arithop code, |
2543 | size_t nargs, register Lisp_Object *args) | |
7921925c JB |
2544 | { |
2545 | register Lisp_Object val; | |
2546 | double next; | |
7403b5c8 | 2547 | |
7921925c JB |
2548 | for (; argnum < nargs; argnum++) |
2549 | { | |
2550 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ | |
b7826503 | 2551 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val); |
7921925c | 2552 | |
e9ebc175 | 2553 | if (FLOATP (val)) |
7921925c | 2554 | { |
7539e11f | 2555 | next = XFLOAT_DATA (val); |
7921925c JB |
2556 | } |
2557 | else | |
2558 | { | |
2559 | args[argnum] = val; /* runs into a compiler bug. */ | |
2560 | next = XINT (args[argnum]); | |
2561 | } | |
0220c518 | 2562 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2563 | { |
2564 | case Aadd: | |
2565 | accum += next; | |
2566 | break; | |
2567 | case Asub: | |
e64981da | 2568 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c JB |
2569 | break; |
2570 | case Amult: | |
2571 | accum *= next; | |
2572 | break; | |
2573 | case Adiv: | |
2574 | if (!argnum) | |
2575 | accum = next; | |
2576 | else | |
87fbf902 | 2577 | { |
ad8d56b9 | 2578 | if (! IEEE_FLOATING_POINT && next == 0) |
740ef0b5 | 2579 | xsignal0 (Qarith_error); |
87fbf902 RS |
2580 | accum /= next; |
2581 | } | |
7921925c JB |
2582 | break; |
2583 | case Alogand: | |
2584 | case Alogior: | |
2585 | case Alogxor: | |
2586 | return wrong_type_argument (Qinteger_or_marker_p, val); | |
2587 | case Amax: | |
1a2f2d33 | 2588 | if (!argnum || isnan (next) || next > accum) |
7921925c JB |
2589 | accum = next; |
2590 | break; | |
2591 | case Amin: | |
1a2f2d33 | 2592 | if (!argnum || isnan (next) || next < accum) |
7921925c JB |
2593 | accum = next; |
2594 | break; | |
2595 | } | |
2596 | } | |
2597 | ||
2598 | return make_float (accum); | |
2599 | } | |
cc94f3b2 | 2600 | |
7921925c | 2601 | |
a7ca3326 | 2602 | DEFUN ("+", Fplus, Splus, 0, MANY, 0, |
8c1a1077 PJ |
2603 | doc: /* Return sum of any number of arguments, which are numbers or markers. |
2604 | usage: (+ &rest NUMBERS-OR-MARKERS) */) | |
c5101a77 | 2605 | (size_t nargs, Lisp_Object *args) |
7921925c JB |
2606 | { |
2607 | return arith_driver (Aadd, nargs, args); | |
2608 | } | |
2609 | ||
a7ca3326 | 2610 | DEFUN ("-", Fminus, Sminus, 0, MANY, 0, |
558ee900 | 2611 | doc: /* Negate number or subtract numbers or markers and return the result. |
8c1a1077 | 2612 | With one arg, negates it. With more than one arg, |
f44fba9e | 2613 | subtracts all but the first from the first. |
8c1a1077 | 2614 | usage: (- &optional NUMBER-OR-MARKER &rest MORE-NUMBERS-OR-MARKERS) */) |
c5101a77 | 2615 | (size_t nargs, Lisp_Object *args) |
7921925c JB |
2616 | { |
2617 | return arith_driver (Asub, nargs, args); | |
2618 | } | |
2619 | ||
a7ca3326 | 2620 | DEFUN ("*", Ftimes, Stimes, 0, MANY, 0, |
be24eadf | 2621 | doc: /* Return product of any number of arguments, which are numbers or markers. |
8c1a1077 | 2622 | usage: (* &rest NUMBERS-OR-MARKERS) */) |
c5101a77 | 2623 | (size_t nargs, Lisp_Object *args) |
7921925c JB |
2624 | { |
2625 | return arith_driver (Amult, nargs, args); | |
2626 | } | |
2627 | ||
a7ca3326 | 2628 | DEFUN ("/", Fquo, Squo, 2, MANY, 0, |
be24eadf | 2629 | doc: /* Return first argument divided by all the remaining arguments. |
f44fba9e | 2630 | The arguments must be numbers or markers. |
8c1a1077 | 2631 | usage: (/ DIVIDEND DIVISOR &rest DIVISORS) */) |
c5101a77 | 2632 | (size_t nargs, Lisp_Object *args) |
7921925c | 2633 | { |
c5101a77 | 2634 | size_t argnum; |
7ef98053 | 2635 | for (argnum = 2; argnum < nargs; argnum++) |
28712a21 JB |
2636 | if (FLOATP (args[argnum])) |
2637 | return float_arith_driver (0, 0, Adiv, nargs, args); | |
7921925c JB |
2638 | return arith_driver (Adiv, nargs, args); |
2639 | } | |
2640 | ||
a7ca3326 | 2641 | DEFUN ("%", Frem, Srem, 2, 2, 0, |
be24eadf | 2642 | doc: /* Return remainder of X divided by Y. |
8c1a1077 | 2643 | Both must be integers or markers. */) |
5842a27b | 2644 | (register Lisp_Object x, Lisp_Object y) |
7921925c JB |
2645 | { |
2646 | Lisp_Object val; | |
2647 | ||
b7826503 PJ |
2648 | CHECK_NUMBER_COERCE_MARKER (x); |
2649 | CHECK_NUMBER_COERCE_MARKER (y); | |
7921925c | 2650 | |
d9c2a0f2 | 2651 | if (XFASTINT (y) == 0) |
740ef0b5 | 2652 | xsignal0 (Qarith_error); |
87fbf902 | 2653 | |
d9c2a0f2 | 2654 | XSETINT (val, XINT (x) % XINT (y)); |
7921925c JB |
2655 | return val; |
2656 | } | |
2657 | ||
1d66a5fa KH |
2658 | #ifndef HAVE_FMOD |
2659 | double | |
2660 | fmod (f1, f2) | |
2661 | double f1, f2; | |
2662 | { | |
bc1c9d7e PE |
2663 | double r = f1; |
2664 | ||
fa43b1e8 KH |
2665 | if (f2 < 0.0) |
2666 | f2 = -f2; | |
bc1c9d7e PE |
2667 | |
2668 | /* If the magnitude of the result exceeds that of the divisor, or | |
2669 | the sign of the result does not agree with that of the dividend, | |
2670 | iterate with the reduced value. This does not yield a | |
2671 | particularly accurate result, but at least it will be in the | |
2672 | range promised by fmod. */ | |
2673 | do | |
2674 | r -= f2 * floor (r / f2); | |
2675 | while (f2 <= (r < 0 ? -r : r) || ((r < 0) != (f1 < 0) && ! isnan (r))); | |
2676 | ||
2677 | return r; | |
1d66a5fa KH |
2678 | } |
2679 | #endif /* ! HAVE_FMOD */ | |
2680 | ||
44fa9da5 | 2681 | DEFUN ("mod", Fmod, Smod, 2, 2, 0, |
be24eadf | 2682 | doc: /* Return X modulo Y. |
8c1a1077 PJ |
2683 | The result falls between zero (inclusive) and Y (exclusive). |
2684 | Both X and Y must be numbers or markers. */) | |
5842a27b | 2685 | (register Lisp_Object x, Lisp_Object y) |
44fa9da5 PE |
2686 | { |
2687 | Lisp_Object val; | |
5260234d | 2688 | EMACS_INT i1, i2; |
44fa9da5 | 2689 | |
b7826503 PJ |
2690 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (x); |
2691 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (y); | |
44fa9da5 | 2692 | |
d9c2a0f2 | 2693 | if (FLOATP (x) || FLOATP (y)) |
ad8d56b9 PE |
2694 | return fmod_float (x, y); |
2695 | ||
d9c2a0f2 EN |
2696 | i1 = XINT (x); |
2697 | i2 = XINT (y); | |
44fa9da5 PE |
2698 | |
2699 | if (i2 == 0) | |
740ef0b5 | 2700 | xsignal0 (Qarith_error); |
7403b5c8 | 2701 | |
44fa9da5 PE |
2702 | i1 %= i2; |
2703 | ||
2704 | /* If the "remainder" comes out with the wrong sign, fix it. */ | |
04f7ec69 | 2705 | if (i2 < 0 ? i1 > 0 : i1 < 0) |
44fa9da5 PE |
2706 | i1 += i2; |
2707 | ||
f187f1f7 | 2708 | XSETINT (val, i1); |
44fa9da5 PE |
2709 | return val; |
2710 | } | |
2711 | ||
a7ca3326 | 2712 | DEFUN ("max", Fmax, Smax, 1, MANY, 0, |
8c1a1077 | 2713 | doc: /* Return largest of all the arguments (which must be numbers or markers). |
f44fba9e | 2714 | The value is always a number; markers are converted to numbers. |
8c1a1077 | 2715 | usage: (max NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
c5101a77 | 2716 | (size_t nargs, Lisp_Object *args) |
7921925c JB |
2717 | { |
2718 | return arith_driver (Amax, nargs, args); | |
2719 | } | |
2720 | ||
a7ca3326 | 2721 | DEFUN ("min", Fmin, Smin, 1, MANY, 0, |
8c1a1077 | 2722 | doc: /* Return smallest of all the arguments (which must be numbers or markers). |
f44fba9e | 2723 | The value is always a number; markers are converted to numbers. |
8c1a1077 | 2724 | usage: (min NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
c5101a77 | 2725 | (size_t nargs, Lisp_Object *args) |
7921925c JB |
2726 | { |
2727 | return arith_driver (Amin, nargs, args); | |
2728 | } | |
2729 | ||
2730 | DEFUN ("logand", Flogand, Slogand, 0, MANY, 0, | |
8c1a1077 | 2731 | doc: /* Return bitwise-and of all the arguments. |
f44fba9e | 2732 | Arguments may be integers, or markers converted to integers. |
8c1a1077 | 2733 | usage: (logand &rest INTS-OR-MARKERS) */) |
c5101a77 | 2734 | (size_t nargs, Lisp_Object *args) |
7921925c JB |
2735 | { |
2736 | return arith_driver (Alogand, nargs, args); | |
2737 | } | |
2738 | ||
2739 | DEFUN ("logior", Flogior, Slogior, 0, MANY, 0, | |
8c1a1077 | 2740 | doc: /* Return bitwise-or of all the arguments. |
f44fba9e | 2741 | Arguments may be integers, or markers converted to integers. |
8c1a1077 | 2742 | usage: (logior &rest INTS-OR-MARKERS) */) |
c5101a77 | 2743 | (size_t nargs, Lisp_Object *args) |
7921925c JB |
2744 | { |
2745 | return arith_driver (Alogior, nargs, args); | |
2746 | } | |
2747 | ||
2748 | DEFUN ("logxor", Flogxor, Slogxor, 0, MANY, 0, | |
8c1a1077 | 2749 | doc: /* Return bitwise-exclusive-or of all the arguments. |
f44fba9e | 2750 | Arguments may be integers, or markers converted to integers. |
31fb1b2c | 2751 | usage: (logxor &rest INTS-OR-MARKERS) */) |
c5101a77 | 2752 | (size_t nargs, Lisp_Object *args) |
7921925c JB |
2753 | { |
2754 | return arith_driver (Alogxor, nargs, args); | |
2755 | } | |
2756 | ||
2757 | DEFUN ("ash", Fash, Sash, 2, 2, 0, | |
8c1a1077 PJ |
2758 | doc: /* Return VALUE with its bits shifted left by COUNT. |
2759 | If COUNT is negative, shifting is actually to the right. | |
2760 | In this case, the sign bit is duplicated. */) | |
5842a27b | 2761 | (register Lisp_Object value, Lisp_Object count) |
7921925c JB |
2762 | { |
2763 | register Lisp_Object val; | |
2764 | ||
b7826503 PJ |
2765 | CHECK_NUMBER (value); |
2766 | CHECK_NUMBER (count); | |
7921925c | 2767 | |
81d70626 RS |
2768 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2769 | XSETINT (val, 0); | |
2770 | else if (XINT (count) > 0) | |
3d9652eb | 2771 | XSETINT (val, XINT (value) << XFASTINT (count)); |
81d70626 RS |
2772 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2773 | XSETINT (val, XINT (value) < 0 ? -1 : 0); | |
7921925c | 2774 | else |
3d9652eb | 2775 | XSETINT (val, XINT (value) >> -XINT (count)); |
7921925c JB |
2776 | return val; |
2777 | } | |
2778 | ||
2779 | DEFUN ("lsh", Flsh, Slsh, 2, 2, 0, | |
8c1a1077 PJ |
2780 | doc: /* Return VALUE with its bits shifted left by COUNT. |
2781 | If COUNT is negative, shifting is actually to the right. | |
3a9b1297 | 2782 | In this case, zeros are shifted in on the left. */) |
5842a27b | 2783 | (register Lisp_Object value, Lisp_Object count) |
7921925c JB |
2784 | { |
2785 | register Lisp_Object val; | |
2786 | ||
b7826503 PJ |
2787 | CHECK_NUMBER (value); |
2788 | CHECK_NUMBER (count); | |
7921925c | 2789 | |
81d70626 RS |
2790 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2791 | XSETINT (val, 0); | |
2792 | else if (XINT (count) > 0) | |
c8a9ca5a | 2793 | XSETINT (val, XUINT (value) << XFASTINT (count)); |
81d70626 RS |
2794 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2795 | XSETINT (val, 0); | |
7921925c | 2796 | else |
c8a9ca5a | 2797 | XSETINT (val, XUINT (value) >> -XINT (count)); |
7921925c JB |
2798 | return val; |
2799 | } | |
2800 | ||
a7ca3326 | 2801 | DEFUN ("1+", Fadd1, Sadd1, 1, 1, 0, |
8c1a1077 PJ |
2802 | doc: /* Return NUMBER plus one. NUMBER may be a number or a marker. |
2803 | Markers are converted to integers. */) | |
5842a27b | 2804 | (register Lisp_Object number) |
7921925c | 2805 | { |
b7826503 | 2806 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number); |
7921925c | 2807 | |
d9c2a0f2 | 2808 | if (FLOATP (number)) |
7539e11f | 2809 | return (make_float (1.0 + XFLOAT_DATA (number))); |
7921925c | 2810 | |
d9c2a0f2 EN |
2811 | XSETINT (number, XINT (number) + 1); |
2812 | return number; | |
7921925c JB |
2813 | } |
2814 | ||
a7ca3326 | 2815 | DEFUN ("1-", Fsub1, Ssub1, 1, 1, 0, |
8c1a1077 PJ |
2816 | doc: /* Return NUMBER minus one. NUMBER may be a number or a marker. |
2817 | Markers are converted to integers. */) | |
5842a27b | 2818 | (register Lisp_Object number) |
7921925c | 2819 | { |
b7826503 | 2820 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number); |
7921925c | 2821 | |
d9c2a0f2 | 2822 | if (FLOATP (number)) |
7539e11f | 2823 | return (make_float (-1.0 + XFLOAT_DATA (number))); |
7921925c | 2824 | |
d9c2a0f2 EN |
2825 | XSETINT (number, XINT (number) - 1); |
2826 | return number; | |
7921925c JB |
2827 | } |
2828 | ||
2829 | DEFUN ("lognot", Flognot, Slognot, 1, 1, 0, | |
8c1a1077 | 2830 | doc: /* Return the bitwise complement of NUMBER. NUMBER must be an integer. */) |
5842a27b | 2831 | (register Lisp_Object number) |
7921925c | 2832 | { |
b7826503 | 2833 | CHECK_NUMBER (number); |
53924017 | 2834 | XSETINT (number, ~XINT (number)); |
d9c2a0f2 | 2835 | return number; |
7921925c | 2836 | } |
6b61353c | 2837 | |
a7ca3326 | 2838 | DEFUN ("byteorder", Fbyteorder, Sbyteorder, 0, 0, 0, |
6b61353c KH |
2839 | doc: /* Return the byteorder for the machine. |
2840 | Returns 66 (ASCII uppercase B) for big endian machines or 108 (ASCII | |
2841 | lowercase l) for small endian machines. */) | |
5842a27b | 2842 | (void) |
6b61353c KH |
2843 | { |
2844 | unsigned i = 0x04030201; | |
2845 | int order = *(char *)&i == 1 ? 108 : 66; | |
2846 | ||
2847 | return make_number (order); | |
2848 | } | |
2849 | ||
2850 | ||
7921925c JB |
2851 | \f |
2852 | void | |
971de7fb | 2853 | syms_of_data (void) |
7921925c | 2854 | { |
6315e761 RS |
2855 | Lisp_Object error_tail, arith_tail; |
2856 | ||
d67b4f80 DN |
2857 | Qquote = intern_c_string ("quote"); |
2858 | Qlambda = intern_c_string ("lambda"); | |
2859 | Qsubr = intern_c_string ("subr"); | |
2860 | Qerror_conditions = intern_c_string ("error-conditions"); | |
2861 | Qerror_message = intern_c_string ("error-message"); | |
2862 | Qtop_level = intern_c_string ("top-level"); | |
2863 | ||
2864 | Qerror = intern_c_string ("error"); | |
2865 | Qquit = intern_c_string ("quit"); | |
2866 | Qwrong_type_argument = intern_c_string ("wrong-type-argument"); | |
2867 | Qargs_out_of_range = intern_c_string ("args-out-of-range"); | |
2868 | Qvoid_function = intern_c_string ("void-function"); | |
2869 | Qcyclic_function_indirection = intern_c_string ("cyclic-function-indirection"); | |
2870 | Qcyclic_variable_indirection = intern_c_string ("cyclic-variable-indirection"); | |
2871 | Qvoid_variable = intern_c_string ("void-variable"); | |
2872 | Qsetting_constant = intern_c_string ("setting-constant"); | |
2873 | Qinvalid_read_syntax = intern_c_string ("invalid-read-syntax"); | |
2874 | ||
2875 | Qinvalid_function = intern_c_string ("invalid-function"); | |
2876 | Qwrong_number_of_arguments = intern_c_string ("wrong-number-of-arguments"); | |
2877 | Qno_catch = intern_c_string ("no-catch"); | |
2878 | Qend_of_file = intern_c_string ("end-of-file"); | |
2879 | Qarith_error = intern_c_string ("arith-error"); | |
2880 | Qbeginning_of_buffer = intern_c_string ("beginning-of-buffer"); | |
2881 | Qend_of_buffer = intern_c_string ("end-of-buffer"); | |
2882 | Qbuffer_read_only = intern_c_string ("buffer-read-only"); | |
2883 | Qtext_read_only = intern_c_string ("text-read-only"); | |
2884 | Qmark_inactive = intern_c_string ("mark-inactive"); | |
2885 | ||
2886 | Qlistp = intern_c_string ("listp"); | |
2887 | Qconsp = intern_c_string ("consp"); | |
2888 | Qsymbolp = intern_c_string ("symbolp"); | |
2889 | Qkeywordp = intern_c_string ("keywordp"); | |
2890 | Qintegerp = intern_c_string ("integerp"); | |
2891 | Qnatnump = intern_c_string ("natnump"); | |
2892 | Qwholenump = intern_c_string ("wholenump"); | |
2893 | Qstringp = intern_c_string ("stringp"); | |
2894 | Qarrayp = intern_c_string ("arrayp"); | |
2895 | Qsequencep = intern_c_string ("sequencep"); | |
2896 | Qbufferp = intern_c_string ("bufferp"); | |
2897 | Qvectorp = intern_c_string ("vectorp"); | |
2898 | Qchar_or_string_p = intern_c_string ("char-or-string-p"); | |
2899 | Qmarkerp = intern_c_string ("markerp"); | |
2900 | Qbuffer_or_string_p = intern_c_string ("buffer-or-string-p"); | |
2901 | Qinteger_or_marker_p = intern_c_string ("integer-or-marker-p"); | |
2902 | Qboundp = intern_c_string ("boundp"); | |
2903 | Qfboundp = intern_c_string ("fboundp"); | |
2904 | ||
2905 | Qfloatp = intern_c_string ("floatp"); | |
2906 | Qnumberp = intern_c_string ("numberp"); | |
2907 | Qnumber_or_marker_p = intern_c_string ("number-or-marker-p"); | |
2908 | ||
2909 | Qchar_table_p = intern_c_string ("char-table-p"); | |
2910 | Qvector_or_char_table_p = intern_c_string ("vector-or-char-table-p"); | |
2911 | ||
2912 | Qsubrp = intern_c_string ("subrp"); | |
2913 | Qunevalled = intern_c_string ("unevalled"); | |
2914 | Qmany = intern_c_string ("many"); | |
2915 | ||
2916 | Qcdr = intern_c_string ("cdr"); | |
7921925c | 2917 | |
f845f2c9 | 2918 | /* Handle automatic advice activation */ |
d67b4f80 DN |
2919 | Qad_advice_info = intern_c_string ("ad-advice-info"); |
2920 | Qad_activate_internal = intern_c_string ("ad-activate-internal"); | |
f845f2c9 | 2921 | |
d67b4f80 | 2922 | error_tail = pure_cons (Qerror, Qnil); |
6315e761 | 2923 | |
7921925c JB |
2924 | /* ERROR is used as a signaler for random errors for which nothing else is right */ |
2925 | ||
2926 | Fput (Qerror, Qerror_conditions, | |
6315e761 | 2927 | error_tail); |
7921925c | 2928 | Fput (Qerror, Qerror_message, |
d67b4f80 | 2929 | make_pure_c_string ("error")); |
7921925c JB |
2930 | |
2931 | Fput (Qquit, Qerror_conditions, | |
d67b4f80 | 2932 | pure_cons (Qquit, Qnil)); |
7921925c | 2933 | Fput (Qquit, Qerror_message, |
d67b4f80 | 2934 | make_pure_c_string ("Quit")); |
7921925c JB |
2935 | |
2936 | Fput (Qwrong_type_argument, Qerror_conditions, | |
d67b4f80 | 2937 | pure_cons (Qwrong_type_argument, error_tail)); |
7921925c | 2938 | Fput (Qwrong_type_argument, Qerror_message, |
d67b4f80 | 2939 | make_pure_c_string ("Wrong type argument")); |
7921925c JB |
2940 | |
2941 | Fput (Qargs_out_of_range, Qerror_conditions, | |
d67b4f80 | 2942 | pure_cons (Qargs_out_of_range, error_tail)); |
7921925c | 2943 | Fput (Qargs_out_of_range, Qerror_message, |
d67b4f80 | 2944 | make_pure_c_string ("Args out of range")); |
7921925c JB |
2945 | |
2946 | Fput (Qvoid_function, Qerror_conditions, | |
d67b4f80 | 2947 | pure_cons (Qvoid_function, error_tail)); |
7921925c | 2948 | Fput (Qvoid_function, Qerror_message, |
d67b4f80 | 2949 | make_pure_c_string ("Symbol's function definition is void")); |
7921925c | 2950 | |
ffd56f97 | 2951 | Fput (Qcyclic_function_indirection, Qerror_conditions, |
d67b4f80 | 2952 | pure_cons (Qcyclic_function_indirection, error_tail)); |
ffd56f97 | 2953 | Fput (Qcyclic_function_indirection, Qerror_message, |
d67b4f80 | 2954 | make_pure_c_string ("Symbol's chain of function indirections contains a loop")); |
ffd56f97 | 2955 | |
f35d5bad | 2956 | Fput (Qcyclic_variable_indirection, Qerror_conditions, |
d67b4f80 | 2957 | pure_cons (Qcyclic_variable_indirection, error_tail)); |
f35d5bad | 2958 | Fput (Qcyclic_variable_indirection, Qerror_message, |
d67b4f80 | 2959 | make_pure_c_string ("Symbol's chain of variable indirections contains a loop")); |
f35d5bad | 2960 | |
d67b4f80 | 2961 | Qcircular_list = intern_c_string ("circular-list"); |
13d95cc0 GM |
2962 | staticpro (&Qcircular_list); |
2963 | Fput (Qcircular_list, Qerror_conditions, | |
d67b4f80 | 2964 | pure_cons (Qcircular_list, error_tail)); |
13d95cc0 | 2965 | Fput (Qcircular_list, Qerror_message, |
d67b4f80 | 2966 | make_pure_c_string ("List contains a loop")); |
13d95cc0 | 2967 | |
7921925c | 2968 | Fput (Qvoid_variable, Qerror_conditions, |
d67b4f80 | 2969 | pure_cons (Qvoid_variable, error_tail)); |
7921925c | 2970 | Fput (Qvoid_variable, Qerror_message, |
d67b4f80 | 2971 | make_pure_c_string ("Symbol's value as variable is void")); |
7921925c JB |
2972 | |
2973 | Fput (Qsetting_constant, Qerror_conditions, | |
d67b4f80 | 2974 | pure_cons (Qsetting_constant, error_tail)); |
7921925c | 2975 | Fput (Qsetting_constant, Qerror_message, |
d67b4f80 | 2976 | make_pure_c_string ("Attempt to set a constant symbol")); |
7921925c JB |
2977 | |
2978 | Fput (Qinvalid_read_syntax, Qerror_conditions, | |
d67b4f80 | 2979 | pure_cons (Qinvalid_read_syntax, error_tail)); |
7921925c | 2980 | Fput (Qinvalid_read_syntax, Qerror_message, |
d67b4f80 | 2981 | make_pure_c_string ("Invalid read syntax")); |
7921925c JB |
2982 | |
2983 | Fput (Qinvalid_function, Qerror_conditions, | |
d67b4f80 | 2984 | pure_cons (Qinvalid_function, error_tail)); |
7921925c | 2985 | Fput (Qinvalid_function, Qerror_message, |
d67b4f80 | 2986 | make_pure_c_string ("Invalid function")); |
7921925c JB |
2987 | |
2988 | Fput (Qwrong_number_of_arguments, Qerror_conditions, | |
d67b4f80 | 2989 | pure_cons (Qwrong_number_of_arguments, error_tail)); |
7921925c | 2990 | Fput (Qwrong_number_of_arguments, Qerror_message, |
d67b4f80 | 2991 | make_pure_c_string ("Wrong number of arguments")); |
7921925c JB |
2992 | |
2993 | Fput (Qno_catch, Qerror_conditions, | |
d67b4f80 | 2994 | pure_cons (Qno_catch, error_tail)); |
7921925c | 2995 | Fput (Qno_catch, Qerror_message, |
d67b4f80 | 2996 | make_pure_c_string ("No catch for tag")); |
7921925c JB |
2997 | |
2998 | Fput (Qend_of_file, Qerror_conditions, | |
d67b4f80 | 2999 | pure_cons (Qend_of_file, error_tail)); |
7921925c | 3000 | Fput (Qend_of_file, Qerror_message, |
d67b4f80 | 3001 | make_pure_c_string ("End of file during parsing")); |
7921925c | 3002 | |
d67b4f80 | 3003 | arith_tail = pure_cons (Qarith_error, error_tail); |
7921925c | 3004 | Fput (Qarith_error, Qerror_conditions, |
6315e761 | 3005 | arith_tail); |
7921925c | 3006 | Fput (Qarith_error, Qerror_message, |
d67b4f80 | 3007 | make_pure_c_string ("Arithmetic error")); |
7921925c JB |
3008 | |
3009 | Fput (Qbeginning_of_buffer, Qerror_conditions, | |
d67b4f80 | 3010 | pure_cons (Qbeginning_of_buffer, error_tail)); |
7921925c | 3011 | Fput (Qbeginning_of_buffer, Qerror_message, |
d67b4f80 | 3012 | make_pure_c_string ("Beginning of buffer")); |
7921925c JB |
3013 | |
3014 | Fput (Qend_of_buffer, Qerror_conditions, | |
d67b4f80 | 3015 | pure_cons (Qend_of_buffer, error_tail)); |
7921925c | 3016 | Fput (Qend_of_buffer, Qerror_message, |
d67b4f80 | 3017 | make_pure_c_string ("End of buffer")); |
7921925c JB |
3018 | |
3019 | Fput (Qbuffer_read_only, Qerror_conditions, | |
d67b4f80 | 3020 | pure_cons (Qbuffer_read_only, error_tail)); |
7921925c | 3021 | Fput (Qbuffer_read_only, Qerror_message, |
d67b4f80 | 3022 | make_pure_c_string ("Buffer is read-only")); |
7921925c | 3023 | |
8f9f49d7 | 3024 | Fput (Qtext_read_only, Qerror_conditions, |
d67b4f80 | 3025 | pure_cons (Qtext_read_only, error_tail)); |
8f9f49d7 | 3026 | Fput (Qtext_read_only, Qerror_message, |
d67b4f80 | 3027 | make_pure_c_string ("Text is read-only")); |
8f9f49d7 | 3028 | |
d67b4f80 DN |
3029 | Qrange_error = intern_c_string ("range-error"); |
3030 | Qdomain_error = intern_c_string ("domain-error"); | |
3031 | Qsingularity_error = intern_c_string ("singularity-error"); | |
3032 | Qoverflow_error = intern_c_string ("overflow-error"); | |
3033 | Qunderflow_error = intern_c_string ("underflow-error"); | |
6315e761 RS |
3034 | |
3035 | Fput (Qdomain_error, Qerror_conditions, | |
d67b4f80 | 3036 | pure_cons (Qdomain_error, arith_tail)); |
6315e761 | 3037 | Fput (Qdomain_error, Qerror_message, |
d67b4f80 | 3038 | make_pure_c_string ("Arithmetic domain error")); |
6315e761 RS |
3039 | |
3040 | Fput (Qrange_error, Qerror_conditions, | |
d67b4f80 | 3041 | pure_cons (Qrange_error, arith_tail)); |
6315e761 | 3042 | Fput (Qrange_error, Qerror_message, |
d67b4f80 | 3043 | make_pure_c_string ("Arithmetic range error")); |
6315e761 RS |
3044 | |
3045 | Fput (Qsingularity_error, Qerror_conditions, | |
d67b4f80 | 3046 | pure_cons (Qsingularity_error, Fcons (Qdomain_error, arith_tail))); |
6315e761 | 3047 | Fput (Qsingularity_error, Qerror_message, |
d67b4f80 | 3048 | make_pure_c_string ("Arithmetic singularity error")); |
6315e761 RS |
3049 | |
3050 | Fput (Qoverflow_error, Qerror_conditions, | |
d67b4f80 | 3051 | pure_cons (Qoverflow_error, Fcons (Qdomain_error, arith_tail))); |
6315e761 | 3052 | Fput (Qoverflow_error, Qerror_message, |
d67b4f80 | 3053 | make_pure_c_string ("Arithmetic overflow error")); |
6315e761 RS |
3054 | |
3055 | Fput (Qunderflow_error, Qerror_conditions, | |
d67b4f80 | 3056 | pure_cons (Qunderflow_error, Fcons (Qdomain_error, arith_tail))); |
6315e761 | 3057 | Fput (Qunderflow_error, Qerror_message, |
d67b4f80 | 3058 | make_pure_c_string ("Arithmetic underflow error")); |
6315e761 RS |
3059 | |
3060 | staticpro (&Qrange_error); | |
3061 | staticpro (&Qdomain_error); | |
3062 | staticpro (&Qsingularity_error); | |
3063 | staticpro (&Qoverflow_error); | |
3064 | staticpro (&Qunderflow_error); | |
6315e761 | 3065 | |
7921925c JB |
3066 | staticpro (&Qnil); |
3067 | staticpro (&Qt); | |
3068 | staticpro (&Qquote); | |
3069 | staticpro (&Qlambda); | |
3070 | staticpro (&Qsubr); | |
3071 | staticpro (&Qunbound); | |
3072 | staticpro (&Qerror_conditions); | |
3073 | staticpro (&Qerror_message); | |
3074 | staticpro (&Qtop_level); | |
3075 | ||
3076 | staticpro (&Qerror); | |
3077 | staticpro (&Qquit); | |
3078 | staticpro (&Qwrong_type_argument); | |
3079 | staticpro (&Qargs_out_of_range); | |
3080 | staticpro (&Qvoid_function); | |
ffd56f97 | 3081 | staticpro (&Qcyclic_function_indirection); |
dfad0b34 | 3082 | staticpro (&Qcyclic_variable_indirection); |
7921925c JB |
3083 | staticpro (&Qvoid_variable); |
3084 | staticpro (&Qsetting_constant); | |
3085 | staticpro (&Qinvalid_read_syntax); | |
3086 | staticpro (&Qwrong_number_of_arguments); | |
3087 | staticpro (&Qinvalid_function); | |
3088 | staticpro (&Qno_catch); | |
3089 | staticpro (&Qend_of_file); | |
3090 | staticpro (&Qarith_error); | |
3091 | staticpro (&Qbeginning_of_buffer); | |
3092 | staticpro (&Qend_of_buffer); | |
3093 | staticpro (&Qbuffer_read_only); | |
8f9f49d7 | 3094 | staticpro (&Qtext_read_only); |
638b77e6 | 3095 | staticpro (&Qmark_inactive); |
7921925c JB |
3096 | |
3097 | staticpro (&Qlistp); | |
3098 | staticpro (&Qconsp); | |
3099 | staticpro (&Qsymbolp); | |
cda9b832 | 3100 | staticpro (&Qkeywordp); |
7921925c JB |
3101 | staticpro (&Qintegerp); |
3102 | staticpro (&Qnatnump); | |
8e86942b | 3103 | staticpro (&Qwholenump); |
7921925c JB |
3104 | staticpro (&Qstringp); |
3105 | staticpro (&Qarrayp); | |
3106 | staticpro (&Qsequencep); | |
3107 | staticpro (&Qbufferp); | |
3108 | staticpro (&Qvectorp); | |
3109 | staticpro (&Qchar_or_string_p); | |
3110 | staticpro (&Qmarkerp); | |
07bd8472 | 3111 | staticpro (&Qbuffer_or_string_p); |
7921925c | 3112 | staticpro (&Qinteger_or_marker_p); |
7921925c | 3113 | staticpro (&Qfloatp); |
464f8898 RS |
3114 | staticpro (&Qnumberp); |
3115 | staticpro (&Qnumber_or_marker_p); | |
4d276982 | 3116 | staticpro (&Qchar_table_p); |
7f0edce7 | 3117 | staticpro (&Qvector_or_char_table_p); |
6f0e897f DL |
3118 | staticpro (&Qsubrp); |
3119 | staticpro (&Qmany); | |
3120 | staticpro (&Qunevalled); | |
7921925c JB |
3121 | |
3122 | staticpro (&Qboundp); | |
3123 | staticpro (&Qfboundp); | |
3124 | staticpro (&Qcdr); | |
ab297811 | 3125 | staticpro (&Qad_advice_info); |
c1307a23 | 3126 | staticpro (&Qad_activate_internal); |
7921925c | 3127 | |
39bcc759 | 3128 | /* Types that type-of returns. */ |
d67b4f80 DN |
3129 | Qinteger = intern_c_string ("integer"); |
3130 | Qsymbol = intern_c_string ("symbol"); | |
3131 | Qstring = intern_c_string ("string"); | |
3132 | Qcons = intern_c_string ("cons"); | |
3133 | Qmarker = intern_c_string ("marker"); | |
3134 | Qoverlay = intern_c_string ("overlay"); | |
3135 | Qfloat = intern_c_string ("float"); | |
3136 | Qwindow_configuration = intern_c_string ("window-configuration"); | |
3137 | Qprocess = intern_c_string ("process"); | |
3138 | Qwindow = intern_c_string ("window"); | |
3139 | /* Qsubr = intern_c_string ("subr"); */ | |
3140 | Qcompiled_function = intern_c_string ("compiled-function"); | |
3141 | Qbuffer = intern_c_string ("buffer"); | |
3142 | Qframe = intern_c_string ("frame"); | |
3143 | Qvector = intern_c_string ("vector"); | |
3144 | Qchar_table = intern_c_string ("char-table"); | |
3145 | Qbool_vector = intern_c_string ("bool-vector"); | |
3146 | Qhash_table = intern_c_string ("hash-table"); | |
39bcc759 | 3147 | |
4e6f2626 CY |
3148 | DEFSYM (Qfont_spec, "font-spec"); |
3149 | DEFSYM (Qfont_entity, "font-entity"); | |
3150 | DEFSYM (Qfont_object, "font-object"); | |
3151 | ||
3860280a CY |
3152 | DEFSYM (Qinteractive_form, "interactive-form"); |
3153 | ||
39bcc759 RS |
3154 | staticpro (&Qinteger); |
3155 | staticpro (&Qsymbol); | |
3156 | staticpro (&Qstring); | |
3157 | staticpro (&Qcons); | |
3158 | staticpro (&Qmarker); | |
3159 | staticpro (&Qoverlay); | |
3160 | staticpro (&Qfloat); | |
3161 | staticpro (&Qwindow_configuration); | |
3162 | staticpro (&Qprocess); | |
3163 | staticpro (&Qwindow); | |
3164 | /* staticpro (&Qsubr); */ | |
3165 | staticpro (&Qcompiled_function); | |
3166 | staticpro (&Qbuffer); | |
3167 | staticpro (&Qframe); | |
3168 | staticpro (&Qvector); | |
fc67d5be KH |
3169 | staticpro (&Qchar_table); |
3170 | staticpro (&Qbool_vector); | |
81dc5de5 | 3171 | staticpro (&Qhash_table); |
39bcc759 | 3172 | |
f35d5bad | 3173 | defsubr (&Sindirect_variable); |
6b61353c | 3174 | defsubr (&Sinteractive_form); |
7921925c JB |
3175 | defsubr (&Seq); |
3176 | defsubr (&Snull); | |
39bcc759 | 3177 | defsubr (&Stype_of); |
7921925c JB |
3178 | defsubr (&Slistp); |
3179 | defsubr (&Snlistp); | |
3180 | defsubr (&Sconsp); | |
3181 | defsubr (&Satom); | |
3182 | defsubr (&Sintegerp); | |
464f8898 | 3183 | defsubr (&Sinteger_or_marker_p); |
7921925c JB |
3184 | defsubr (&Snumberp); |
3185 | defsubr (&Snumber_or_marker_p); | |
464f8898 | 3186 | defsubr (&Sfloatp); |
7921925c JB |
3187 | defsubr (&Snatnump); |
3188 | defsubr (&Ssymbolp); | |
cda9b832 | 3189 | defsubr (&Skeywordp); |
7921925c | 3190 | defsubr (&Sstringp); |
0f56470d | 3191 | defsubr (&Smultibyte_string_p); |
7921925c | 3192 | defsubr (&Svectorp); |
4d276982 | 3193 | defsubr (&Schar_table_p); |
7f0edce7 | 3194 | defsubr (&Svector_or_char_table_p); |
4d276982 | 3195 | defsubr (&Sbool_vector_p); |
7921925c JB |
3196 | defsubr (&Sarrayp); |
3197 | defsubr (&Ssequencep); | |
3198 | defsubr (&Sbufferp); | |
3199 | defsubr (&Smarkerp); | |
7921925c | 3200 | defsubr (&Ssubrp); |
dbc4e1c1 | 3201 | defsubr (&Sbyte_code_function_p); |
7921925c JB |
3202 | defsubr (&Schar_or_string_p); |
3203 | defsubr (&Scar); | |
3204 | defsubr (&Scdr); | |
3205 | defsubr (&Scar_safe); | |
3206 | defsubr (&Scdr_safe); | |
3207 | defsubr (&Ssetcar); | |
3208 | defsubr (&Ssetcdr); | |
3209 | defsubr (&Ssymbol_function); | |
ffd56f97 | 3210 | defsubr (&Sindirect_function); |
7921925c JB |
3211 | defsubr (&Ssymbol_plist); |
3212 | defsubr (&Ssymbol_name); | |
3213 | defsubr (&Smakunbound); | |
3214 | defsubr (&Sfmakunbound); | |
3215 | defsubr (&Sboundp); | |
3216 | defsubr (&Sfboundp); | |
3217 | defsubr (&Sfset); | |
80df38a2 | 3218 | defsubr (&Sdefalias); |
7921925c JB |
3219 | defsubr (&Ssetplist); |
3220 | defsubr (&Ssymbol_value); | |
3221 | defsubr (&Sset); | |
3222 | defsubr (&Sdefault_boundp); | |
3223 | defsubr (&Sdefault_value); | |
3224 | defsubr (&Sset_default); | |
3225 | defsubr (&Ssetq_default); | |
3226 | defsubr (&Smake_variable_buffer_local); | |
3227 | defsubr (&Smake_local_variable); | |
3228 | defsubr (&Skill_local_variable); | |
b0c2d1c6 | 3229 | defsubr (&Smake_variable_frame_local); |
62476adc | 3230 | defsubr (&Slocal_variable_p); |
f4f04cee | 3231 | defsubr (&Slocal_variable_if_set_p); |
6b61353c | 3232 | defsubr (&Svariable_binding_locus); |
c40bb1ba | 3233 | #if 0 /* XXX Remove this. --lorentey */ |
2a42d440 KL |
3234 | defsubr (&Sterminal_local_value); |
3235 | defsubr (&Sset_terminal_local_value); | |
c40bb1ba | 3236 | #endif |
7921925c JB |
3237 | defsubr (&Saref); |
3238 | defsubr (&Saset); | |
f2980264 | 3239 | defsubr (&Snumber_to_string); |
25e40a4b | 3240 | defsubr (&Sstring_to_number); |
7921925c JB |
3241 | defsubr (&Seqlsign); |
3242 | defsubr (&Slss); | |
3243 | defsubr (&Sgtr); | |
3244 | defsubr (&Sleq); | |
3245 | defsubr (&Sgeq); | |
3246 | defsubr (&Sneq); | |
3247 | defsubr (&Szerop); | |
3248 | defsubr (&Splus); | |
3249 | defsubr (&Sminus); | |
3250 | defsubr (&Stimes); | |
3251 | defsubr (&Squo); | |
3252 | defsubr (&Srem); | |
44fa9da5 | 3253 | defsubr (&Smod); |
7921925c JB |
3254 | defsubr (&Smax); |
3255 | defsubr (&Smin); | |
3256 | defsubr (&Slogand); | |
3257 | defsubr (&Slogior); | |
3258 | defsubr (&Slogxor); | |
3259 | defsubr (&Slsh); | |
3260 | defsubr (&Sash); | |
3261 | defsubr (&Sadd1); | |
3262 | defsubr (&Ssub1); | |
3263 | defsubr (&Slognot); | |
6b61353c | 3264 | defsubr (&Sbyteorder); |
6f0e897f | 3265 | defsubr (&Ssubr_arity); |
0fddae66 | 3266 | defsubr (&Ssubr_name); |
8e86942b | 3267 | |
c80bd143 | 3268 | XSYMBOL (Qwholenump)->function = XSYMBOL (Qnatnump)->function; |
e6190b11 | 3269 | |
29208e82 | 3270 | DEFVAR_LISP ("most-positive-fixnum", Vmost_positive_fixnum, |
9d113d9d AS |
3271 | doc: /* The largest value that is representable in a Lisp integer. */); |
3272 | Vmost_positive_fixnum = make_number (MOST_POSITIVE_FIXNUM); | |
d67b4f80 | 3273 | XSYMBOL (intern_c_string ("most-positive-fixnum"))->constant = 1; |
bfb96cb7 | 3274 | |
29208e82 | 3275 | DEFVAR_LISP ("most-negative-fixnum", Vmost_negative_fixnum, |
9d113d9d AS |
3276 | doc: /* The smallest value that is representable in a Lisp integer. */); |
3277 | Vmost_negative_fixnum = make_number (MOST_NEGATIVE_FIXNUM); | |
d67b4f80 | 3278 | XSYMBOL (intern_c_string ("most-negative-fixnum"))->constant = 1; |
7921925c JB |
3279 | } |
3280 | ||
f97334a2 PE |
3281 | #ifndef FORWARD_SIGNAL_TO_MAIN_THREAD |
3282 | static void arith_error (int) NO_RETURN; | |
3283 | #endif | |
3284 | ||
9af30bdf | 3285 | static void |
971de7fb | 3286 | arith_error (int signo) |
7921925c | 3287 | { |
e065a56e | 3288 | sigsetmask (SIGEMPTYMASK); |
7921925c | 3289 | |
333f1b6f | 3290 | SIGNAL_THREAD_CHECK (signo); |
740ef0b5 | 3291 | xsignal0 (Qarith_error); |
7921925c JB |
3292 | } |
3293 | ||
dfcf069d | 3294 | void |
971de7fb | 3295 | init_data (void) |
7921925c JB |
3296 | { |
3297 | /* Don't do this if just dumping out. | |
3298 | We don't want to call `signal' in this case | |
3299 | so that we don't have trouble with dumping | |
3300 | signal-delivering routines in an inconsistent state. */ | |
3301 | #ifndef CANNOT_DUMP | |
3302 | if (!initialized) | |
3303 | return; | |
3304 | #endif /* CANNOT_DUMP */ | |
3305 | signal (SIGFPE, arith_error); | |
7403b5c8 | 3306 | |
7921925c JB |
3307 | #ifdef uts |
3308 | signal (SIGEMT, arith_error); | |
3309 | #endif /* uts */ | |
3310 | } |