Commit | Line | Data |
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7921925c | 1 | /* Primitive operations on Lisp data types for GNU Emacs Lisp interpreter. |
ba318903 | 2 | Copyright (C) 1985-1986, 1988, 1993-1995, 1997-2014 Free Software |
ab422c4d | 3 | 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> |
dd8daec5 | 22 | #include <stdio.h> |
0ae6bdee | 23 | |
4eed3157 | 24 | #include <byteswap.h> |
595e113b PE |
25 | #include <count-one-bits.h> |
26 | #include <count-trailing-zeros.h> | |
0ae6bdee PE |
27 | #include <intprops.h> |
28 | ||
7921925c | 29 | #include "lisp.h" |
29eab336 | 30 | #include "puresize.h" |
e6e1f521 | 31 | #include "character.h" |
7921925c | 32 | #include "buffer.h" |
077d751f | 33 | #include "keyboard.h" |
b0c2d1c6 | 34 | #include "frame.h" |
a44804c2 | 35 | #include "syssignal.h" |
620c53a6 | 36 | #include "termhooks.h" /* For FRAME_KBOARD reference in y-or-n-p. */ |
4e6f2626 | 37 | #include "font.h" |
61b108cc | 38 | #include "keymap.h" |
fb8e9847 | 39 | |
955cbe7b | 40 | Lisp_Object Qnil, Qt, Qquote, Qlambda, Qunbound; |
73880000 | 41 | Lisp_Object Qnil_, Qt_; |
955cbe7b | 42 | static Lisp_Object Qsubr; |
7921925c | 43 | Lisp_Object Qerror_conditions, Qerror_message, Qtop_level; |
71873e2b | 44 | Lisp_Object Qerror, Quser_error, Qquit, Qargs_out_of_range; |
454e2fb9 | 45 | static Lisp_Object Qwrong_length_argument; |
955cbe7b PE |
46 | static Lisp_Object Qwrong_type_argument; |
47 | Lisp_Object Qvoid_variable, Qvoid_function; | |
48 | static Lisp_Object Qcyclic_function_indirection; | |
49 | static Lisp_Object Qcyclic_variable_indirection; | |
50 | Lisp_Object Qcircular_list; | |
51 | static Lisp_Object Qsetting_constant; | |
52 | Lisp_Object Qinvalid_read_syntax; | |
7921925c | 53 | Lisp_Object Qinvalid_function, Qwrong_number_of_arguments, Qno_catch; |
3b8819d6 | 54 | Lisp_Object Qend_of_file, Qarith_error, Qmark_inactive; |
7921925c | 55 | Lisp_Object Qbeginning_of_buffer, Qend_of_buffer, Qbuffer_read_only; |
8f9f49d7 | 56 | Lisp_Object Qtext_read_only; |
6b61353c | 57 | |
2f1205e0 | 58 | Lisp_Object Qintegerp, Qwholenump, Qsymbolp, Qlistp, Qconsp; |
955cbe7b | 59 | static Lisp_Object Qnatnump; |
7921925c JB |
60 | Lisp_Object Qstringp, Qarrayp, Qsequencep, Qbufferp; |
61 | Lisp_Object Qchar_or_string_p, Qmarkerp, Qinteger_or_marker_p, Qvectorp; | |
3e0b94e7 | 62 | Lisp_Object Qbool_vector_p; |
955cbe7b PE |
63 | Lisp_Object Qbuffer_or_string_p; |
64 | static Lisp_Object Qkeywordp, Qboundp; | |
65 | Lisp_Object Qfboundp; | |
7f0edce7 | 66 | Lisp_Object Qchar_table_p, Qvector_or_char_table_p; |
39bcc759 | 67 | |
7921925c | 68 | Lisp_Object Qcdr; |
955cbe7b | 69 | static Lisp_Object Qad_advice_info, Qad_activate_internal; |
7921925c | 70 | |
c990426a PE |
71 | static Lisp_Object Qdomain_error, Qsingularity_error, Qunderflow_error; |
72 | Lisp_Object Qrange_error, Qoverflow_error; | |
6315e761 | 73 | |
464f8898 | 74 | Lisp_Object Qfloatp; |
7921925c | 75 | Lisp_Object Qnumberp, Qnumber_or_marker_p; |
7921925c | 76 | |
b52d6985 PE |
77 | Lisp_Object Qinteger, Qsymbol; |
78 | static Lisp_Object Qcons, Qfloat, Qmisc, Qstring, Qvector; | |
e6cba650 | 79 | Lisp_Object Qwindow; |
3ab6e069 DA |
80 | static Lisp_Object Qoverlay, Qwindow_configuration; |
81 | static Lisp_Object Qprocess, Qmarker; | |
82 | static Lisp_Object Qcompiled_function, Qframe; | |
4b66faf3 | 83 | Lisp_Object Qbuffer; |
81dc5de5 | 84 | static Lisp_Object Qchar_table, Qbool_vector, Qhash_table; |
84575e67 PE |
85 | static Lisp_Object Qsubrp; |
86 | static Lisp_Object Qmany, Qunevalled; | |
4e6f2626 | 87 | Lisp_Object Qfont_spec, Qfont_entity, Qfont_object; |
61b108cc | 88 | static Lisp_Object Qdefun; |
39bcc759 | 89 | |
62947569 | 90 | Lisp_Object Qspecial_operator; |
12cc4337 PE |
91 | Lisp_Object Qinteractive_form; |
92 | static Lisp_Object Qdefalias_fset_function; | |
3860280a | 93 | |
844e0de1 | 94 | static void swap_in_symval_forwarding (sym_t, struct Lisp_Buffer_Local_Value *); |
d02eeab3 | 95 | |
84575e67 PE |
96 | static bool |
97 | BOOLFWDP (union Lisp_Fwd *a) | |
98 | { | |
99 | return XFWDTYPE (a) == Lisp_Fwd_Bool; | |
100 | } | |
101 | static bool | |
102 | INTFWDP (union Lisp_Fwd *a) | |
103 | { | |
104 | return XFWDTYPE (a) == Lisp_Fwd_Int; | |
105 | } | |
106 | static bool | |
107 | KBOARD_OBJFWDP (union Lisp_Fwd *a) | |
108 | { | |
109 | return XFWDTYPE (a) == Lisp_Fwd_Kboard_Obj; | |
110 | } | |
111 | static bool | |
112 | OBJFWDP (union Lisp_Fwd *a) | |
113 | { | |
114 | return XFWDTYPE (a) == Lisp_Fwd_Obj; | |
115 | } | |
116 | ||
117 | static struct Lisp_Boolfwd * | |
118 | XBOOLFWD (union Lisp_Fwd *a) | |
119 | { | |
120 | eassert (BOOLFWDP (a)); | |
121 | return &a->u_boolfwd; | |
122 | } | |
123 | static struct Lisp_Kboard_Objfwd * | |
124 | XKBOARD_OBJFWD (union Lisp_Fwd *a) | |
125 | { | |
126 | eassert (KBOARD_OBJFWDP (a)); | |
127 | return &a->u_kboard_objfwd; | |
128 | } | |
129 | static struct Lisp_Intfwd * | |
130 | XINTFWD (union Lisp_Fwd *a) | |
131 | { | |
132 | eassert (INTFWDP (a)); | |
133 | return &a->u_intfwd; | |
134 | } | |
135 | static struct Lisp_Objfwd * | |
136 | XOBJFWD (union Lisp_Fwd *a) | |
137 | { | |
138 | eassert (OBJFWDP (a)); | |
139 | return &a->u_objfwd; | |
140 | } | |
141 | ||
142 | static void | |
143 | CHECK_SUBR (Lisp_Object x) | |
144 | { | |
62947569 | 145 | CHECK_TYPE (! NILP (Fsubrp (x)), Qsubrp, x); |
84575e67 PE |
146 | } |
147 | ||
148 | static void | |
149 | set_blv_found (struct Lisp_Buffer_Local_Value *blv, int found) | |
150 | { | |
151 | eassert (found == !EQ (blv->defcell, blv->valcell)); | |
152 | blv->found = found; | |
153 | } | |
154 | ||
155 | static Lisp_Object | |
156 | blv_value (struct Lisp_Buffer_Local_Value *blv) | |
157 | { | |
158 | return XCDR (blv->valcell); | |
159 | } | |
160 | ||
161 | static void | |
162 | set_blv_value (struct Lisp_Buffer_Local_Value *blv, Lisp_Object val) | |
163 | { | |
164 | XSETCDR (blv->valcell, val); | |
165 | } | |
166 | ||
167 | static void | |
168 | set_blv_where (struct Lisp_Buffer_Local_Value *blv, Lisp_Object val) | |
169 | { | |
170 | blv->where = val; | |
171 | } | |
172 | ||
173 | static void | |
174 | set_blv_defcell (struct Lisp_Buffer_Local_Value *blv, Lisp_Object val) | |
175 | { | |
176 | blv->defcell = val; | |
177 | } | |
178 | ||
179 | static void | |
180 | set_blv_valcell (struct Lisp_Buffer_Local_Value *blv, Lisp_Object val) | |
181 | { | |
182 | blv->valcell = val; | |
183 | } | |
13d95cc0 | 184 | |
454e2fb9 PE |
185 | static _Noreturn void |
186 | wrong_length_argument (Lisp_Object a1, Lisp_Object a2, Lisp_Object a3) | |
187 | { | |
188 | Lisp_Object size1 = make_number (bool_vector_size (a1)); | |
189 | Lisp_Object size2 = make_number (bool_vector_size (a2)); | |
190 | if (NILP (a3)) | |
191 | xsignal2 (Qwrong_length_argument, size1, size2); | |
192 | else | |
193 | xsignal3 (Qwrong_length_argument, size1, size2, | |
194 | make_number (bool_vector_size (a3))); | |
195 | } | |
196 | ||
7921925c | 197 | Lisp_Object |
971de7fb | 198 | wrong_type_argument (register Lisp_Object predicate, register Lisp_Object value) |
7921925c | 199 | { |
2de9f71c SM |
200 | /* If VALUE is not even a valid Lisp object, we'd want to abort here |
201 | where we can get a backtrace showing where it came from. We used | |
202 | to try and do that by checking the tagbits, but nowadays all | |
203 | tagbits are potentially valid. */ | |
204 | /* if ((unsigned int) XTYPE (value) >= Lisp_Type_Limit) | |
1088b922 | 205 | * emacs_abort (); */ |
e1351ff7 | 206 | |
740ef0b5 | 207 | xsignal2 (Qwrong_type_argument, predicate, value); |
7921925c JB |
208 | } |
209 | ||
7921925c | 210 | void |
971de7fb | 211 | args_out_of_range (Lisp_Object a1, Lisp_Object a2) |
7921925c | 212 | { |
740ef0b5 | 213 | xsignal2 (Qargs_out_of_range, a1, a2); |
7921925c JB |
214 | } |
215 | ||
216 | void | |
971de7fb | 217 | args_out_of_range_3 (Lisp_Object a1, Lisp_Object a2, Lisp_Object a3) |
7921925c | 218 | { |
740ef0b5 | 219 | xsignal3 (Qargs_out_of_range, a1, a2, a3); |
7921925c JB |
220 | } |
221 | ||
7921925c | 222 | \f |
61b108cc | 223 | /* Data type predicates. */ |
7921925c JB |
224 | |
225 | DEFUN ("eq", Feq, Seq, 2, 2, 0, | |
8c1a1077 | 226 | doc: /* Return t if the two args are the same Lisp object. */) |
5842a27b | 227 | (Lisp_Object obj1, Lisp_Object obj2) |
7921925c JB |
228 | { |
229 | if (EQ (obj1, obj2)) | |
230 | return Qt; | |
231 | return Qnil; | |
232 | } | |
233 | ||
8c1a1077 PJ |
234 | DEFUN ("null", Fnull, Snull, 1, 1, 0, |
235 | doc: /* Return t if OBJECT is nil. */) | |
5842a27b | 236 | (Lisp_Object object) |
7921925c | 237 | { |
39bcc759 | 238 | if (NILP (object)) |
7921925c JB |
239 | return Qt; |
240 | return Qnil; | |
241 | } | |
242 | ||
39bcc759 | 243 | DEFUN ("type-of", Ftype_of, Stype_of, 1, 1, 0, |
8c1a1077 PJ |
244 | doc: /* Return a symbol representing the type of OBJECT. |
245 | The symbol returned names the object's basic type; | |
246 | for example, (type-of 1) returns `integer'. */) | |
5842a27b | 247 | (Lisp_Object object) |
39bcc759 | 248 | { |
55a1744a BT |
249 | if (INTEGERP (object)) |
250 | return Qinteger; | |
251 | else if (SYMBOLP (object)) | |
252 | return Qsymbol; | |
253 | else if (STRINGP (object)) | |
254 | return Qstring; | |
255 | else if (CONSP (object)) | |
256 | return Qcons; | |
257 | else if (MISCP (object)) | |
39bcc759 | 258 | { |
324a6eef | 259 | switch (XMISCTYPE (object)) |
39bcc759 RS |
260 | { |
261 | case Lisp_Misc_Marker: | |
262 | return Qmarker; | |
263 | case Lisp_Misc_Overlay: | |
264 | return Qoverlay; | |
265 | case Lisp_Misc_Float: | |
266 | return Qfloat; | |
267 | } | |
1088b922 | 268 | emacs_abort (); |
55a1744a BT |
269 | } |
270 | else if (VECTORLIKEP (object)) | |
271 | { | |
8e50cc2d | 272 | if (WINDOW_CONFIGURATIONP (object)) |
39bcc759 | 273 | return Qwindow_configuration; |
8e50cc2d | 274 | if (PROCESSP (object)) |
39bcc759 | 275 | return Qprocess; |
8e50cc2d | 276 | if (WINDOWP (object)) |
39bcc759 | 277 | return Qwindow; |
876c194c SM |
278 | if (COMPILEDP (object)) |
279 | return Qcompiled_function; | |
8e50cc2d | 280 | if (BUFFERP (object)) |
39bcc759 | 281 | return Qbuffer; |
8e50cc2d | 282 | if (CHAR_TABLE_P (object)) |
fc67d5be | 283 | return Qchar_table; |
8e50cc2d | 284 | if (BOOL_VECTOR_P (object)) |
fc67d5be | 285 | return Qbool_vector; |
8e50cc2d | 286 | if (FRAMEP (object)) |
39bcc759 | 287 | return Qframe; |
8e50cc2d | 288 | if (HASH_TABLE_P (object)) |
81dc5de5 | 289 | return Qhash_table; |
4e6f2626 CY |
290 | if (FONT_SPEC_P (object)) |
291 | return Qfont_spec; | |
292 | if (FONT_ENTITY_P (object)) | |
293 | return Qfont_entity; | |
294 | if (FONT_OBJECT_P (object)) | |
295 | return Qfont_object; | |
39bcc759 | 296 | return Qvector; |
39bcc759 | 297 | } |
55a1744a BT |
298 | else if (FLOATP (object)) |
299 | return Qfloat; | |
62947569 BT |
300 | else if (! NILP (Fsubrp (object))) |
301 | return Qsubr; | |
55a1744a BT |
302 | else |
303 | return Qt; | |
39bcc759 RS |
304 | } |
305 | ||
8c1a1077 PJ |
306 | DEFUN ("consp", Fconsp, Sconsp, 1, 1, 0, |
307 | doc: /* Return t if OBJECT is a cons cell. */) | |
5842a27b | 308 | (Lisp_Object object) |
7921925c | 309 | { |
39bcc759 | 310 | if (CONSP (object)) |
7921925c JB |
311 | return Qt; |
312 | return Qnil; | |
313 | } | |
314 | ||
25638b07 | 315 | DEFUN ("atom", Fatom, Satom, 1, 1, 0, |
8c1a1077 | 316 | doc: /* Return t if OBJECT is not a cons cell. This includes nil. */) |
5842a27b | 317 | (Lisp_Object object) |
7921925c | 318 | { |
39bcc759 | 319 | if (CONSP (object)) |
7921925c JB |
320 | return Qnil; |
321 | return Qt; | |
322 | } | |
323 | ||
25638b07 | 324 | DEFUN ("listp", Flistp, Slistp, 1, 1, 0, |
4cdcdcc9 LT |
325 | doc: /* Return t if OBJECT is a list, that is, a cons cell or nil. |
326 | Otherwise, return nil. */) | |
5842a27b | 327 | (Lisp_Object object) |
7921925c | 328 | { |
39bcc759 | 329 | if (CONSP (object) || NILP (object)) |
7921925c JB |
330 | return Qt; |
331 | return Qnil; | |
332 | } | |
333 | ||
25638b07 | 334 | DEFUN ("nlistp", Fnlistp, Snlistp, 1, 1, 0, |
8c1a1077 | 335 | doc: /* Return t if OBJECT is not a list. Lists include nil. */) |
5842a27b | 336 | (Lisp_Object object) |
7921925c | 337 | { |
39bcc759 | 338 | if (CONSP (object) || NILP (object)) |
7921925c JB |
339 | return Qnil; |
340 | return Qt; | |
341 | } | |
342 | \f | |
25638b07 | 343 | DEFUN ("symbolp", Fsymbolp, Ssymbolp, 1, 1, 0, |
8c1a1077 | 344 | doc: /* Return t if OBJECT is a symbol. */) |
5842a27b | 345 | (Lisp_Object object) |
7921925c | 346 | { |
39bcc759 | 347 | if (SYMBOLP (object)) |
7921925c JB |
348 | return Qt; |
349 | return Qnil; | |
350 | } | |
351 | ||
42c30833 BT |
352 | static bool |
353 | SYMBOL_INTERNED_IN_INITIAL_OBARRAY_P (Lisp_Object sym) | |
354 | { | |
355 | /* Should be initial_obarray */ | |
356 | Lisp_Object tem = Ffind_symbol (SYMBOL_NAME (sym), Vobarray); | |
357 | return (! NILP (scm_c_value_ref (tem, 1)) | |
358 | && (EQ (sym, scm_c_value_ref (tem, 0)))); | |
359 | } | |
360 | ||
cda9b832 DL |
361 | /* Define this in C to avoid unnecessarily consing up the symbol |
362 | name. */ | |
363 | DEFUN ("keywordp", Fkeywordp, Skeywordp, 1, 1, 0, | |
8c1a1077 PJ |
364 | doc: /* Return t if OBJECT is a keyword. |
365 | This means that it is a symbol with a print name beginning with `:' | |
366 | interned in the initial obarray. */) | |
5842a27b | 367 | (Lisp_Object object) |
cda9b832 DL |
368 | { |
369 | if (SYMBOLP (object) | |
d5db4077 | 370 | && SREF (SYMBOL_NAME (object), 0) == ':' |
f35d5bad | 371 | && SYMBOL_INTERNED_IN_INITIAL_OBARRAY_P (object)) |
cda9b832 DL |
372 | return Qt; |
373 | return Qnil; | |
374 | } | |
375 | ||
25638b07 | 376 | DEFUN ("vectorp", Fvectorp, Svectorp, 1, 1, 0, |
8c1a1077 | 377 | doc: /* Return t if OBJECT is a vector. */) |
5842a27b | 378 | (Lisp_Object object) |
7921925c | 379 | { |
39bcc759 | 380 | if (VECTORP (object)) |
7921925c JB |
381 | return Qt; |
382 | return Qnil; | |
383 | } | |
384 | ||
25638b07 | 385 | DEFUN ("stringp", Fstringp, Sstringp, 1, 1, 0, |
8c1a1077 | 386 | doc: /* Return t if OBJECT is a string. */) |
5842a27b | 387 | (Lisp_Object object) |
7921925c | 388 | { |
39bcc759 | 389 | if (STRINGP (object)) |
7921925c JB |
390 | return Qt; |
391 | return Qnil; | |
392 | } | |
393 | ||
25638b07 | 394 | DEFUN ("multibyte-string-p", Fmultibyte_string_p, Smultibyte_string_p, |
8c1a1077 | 395 | 1, 1, 0, |
3323c263 EZ |
396 | doc: /* Return t if OBJECT is a multibyte string. |
397 | Return nil if OBJECT is either a unibyte string, or not a string. */) | |
5842a27b | 398 | (Lisp_Object object) |
25638b07 RS |
399 | { |
400 | if (STRINGP (object) && STRING_MULTIBYTE (object)) | |
401 | return Qt; | |
402 | return Qnil; | |
403 | } | |
404 | ||
405 | DEFUN ("char-table-p", Fchar_table_p, Schar_table_p, 1, 1, 0, | |
8c1a1077 | 406 | doc: /* Return t if OBJECT is a char-table. */) |
5842a27b | 407 | (Lisp_Object object) |
4d276982 RS |
408 | { |
409 | if (CHAR_TABLE_P (object)) | |
410 | return Qt; | |
411 | return Qnil; | |
412 | } | |
413 | ||
7f0edce7 RS |
414 | DEFUN ("vector-or-char-table-p", Fvector_or_char_table_p, |
415 | Svector_or_char_table_p, 1, 1, 0, | |
8c1a1077 | 416 | doc: /* Return t if OBJECT is a char-table or vector. */) |
5842a27b | 417 | (Lisp_Object object) |
7f0edce7 RS |
418 | { |
419 | if (VECTORP (object) || CHAR_TABLE_P (object)) | |
420 | return Qt; | |
421 | return Qnil; | |
422 | } | |
423 | ||
8c1a1077 PJ |
424 | DEFUN ("bool-vector-p", Fbool_vector_p, Sbool_vector_p, 1, 1, 0, |
425 | doc: /* Return t if OBJECT is a bool-vector. */) | |
5842a27b | 426 | (Lisp_Object object) |
4d276982 RS |
427 | { |
428 | if (BOOL_VECTOR_P (object)) | |
429 | return Qt; | |
430 | return Qnil; | |
431 | } | |
432 | ||
8c1a1077 PJ |
433 | DEFUN ("arrayp", Farrayp, Sarrayp, 1, 1, 0, |
434 | doc: /* Return t if OBJECT is an array (string or vector). */) | |
5842a27b | 435 | (Lisp_Object object) |
7921925c | 436 | { |
0c64a8cd | 437 | if (ARRAYP (object)) |
7921925c JB |
438 | return Qt; |
439 | return Qnil; | |
440 | } | |
441 | ||
442 | DEFUN ("sequencep", Fsequencep, Ssequencep, 1, 1, 0, | |
8c1a1077 | 443 | doc: /* Return t if OBJECT is a sequence (list or array). */) |
5842a27b | 444 | (register Lisp_Object object) |
7921925c | 445 | { |
0c64a8cd | 446 | if (CONSP (object) || NILP (object) || ARRAYP (object)) |
7921925c JB |
447 | return Qt; |
448 | return Qnil; | |
449 | } | |
450 | ||
8c1a1077 PJ |
451 | DEFUN ("bufferp", Fbufferp, Sbufferp, 1, 1, 0, |
452 | doc: /* Return t if OBJECT is an editor buffer. */) | |
5842a27b | 453 | (Lisp_Object object) |
7921925c | 454 | { |
39bcc759 | 455 | if (BUFFERP (object)) |
7921925c JB |
456 | return Qt; |
457 | return Qnil; | |
458 | } | |
459 | ||
8c1a1077 PJ |
460 | DEFUN ("markerp", Fmarkerp, Smarkerp, 1, 1, 0, |
461 | doc: /* Return t if OBJECT is a marker (editor pointer). */) | |
5842a27b | 462 | (Lisp_Object object) |
7921925c | 463 | { |
39bcc759 | 464 | if (MARKERP (object)) |
7921925c JB |
465 | return Qt; |
466 | return Qnil; | |
467 | } | |
468 | ||
8c1a1077 PJ |
469 | DEFUN ("subrp", Fsubrp, Ssubrp, 1, 1, 0, |
470 | doc: /* Return t if OBJECT is a built-in function. */) | |
5842a27b | 471 | (Lisp_Object object) |
7921925c | 472 | { |
62947569 BT |
473 | if (CONSP (object) && EQ (XCAR (object), Qspecial_operator)) |
474 | object = XCDR (object); | |
475 | if (SCM_PRIMITIVE_P (object)) | |
7921925c JB |
476 | return Qt; |
477 | return Qnil; | |
478 | } | |
479 | ||
dbc4e1c1 | 480 | DEFUN ("byte-code-function-p", Fbyte_code_function_p, Sbyte_code_function_p, |
8c1a1077 PJ |
481 | 1, 1, 0, |
482 | doc: /* Return t if OBJECT is a byte-compiled function object. */) | |
5842a27b | 483 | (Lisp_Object object) |
7921925c | 484 | { |
39bcc759 | 485 | if (COMPILEDP (object)) |
7921925c JB |
486 | return Qt; |
487 | return Qnil; | |
488 | } | |
489 | ||
0321d75c | 490 | DEFUN ("char-or-string-p", Fchar_or_string_p, Schar_or_string_p, 1, 1, 0, |
8637f5ee | 491 | doc: /* Return t if OBJECT is a character or a string. */) |
5842a27b | 492 | (register Lisp_Object object) |
7921925c | 493 | { |
cfd70f33 | 494 | if (CHARACTERP (object) || STRINGP (object)) |
7921925c JB |
495 | return Qt; |
496 | return Qnil; | |
497 | } | |
498 | \f | |
8c1a1077 PJ |
499 | DEFUN ("integerp", Fintegerp, Sintegerp, 1, 1, 0, |
500 | doc: /* Return t if OBJECT is an integer. */) | |
5842a27b | 501 | (Lisp_Object object) |
7921925c | 502 | { |
39bcc759 | 503 | if (INTEGERP (object)) |
7921925c JB |
504 | return Qt; |
505 | return Qnil; | |
506 | } | |
507 | ||
464f8898 | 508 | DEFUN ("integer-or-marker-p", Finteger_or_marker_p, Sinteger_or_marker_p, 1, 1, 0, |
8c1a1077 | 509 | doc: /* Return t if OBJECT is an integer or a marker (editor pointer). */) |
5842a27b | 510 | (register Lisp_Object object) |
7921925c | 511 | { |
39bcc759 | 512 | if (MARKERP (object) || INTEGERP (object)) |
7921925c JB |
513 | return Qt; |
514 | return Qnil; | |
515 | } | |
516 | ||
0321d75c | 517 | DEFUN ("natnump", Fnatnump, Snatnump, 1, 1, 0, |
8c1a1077 | 518 | doc: /* Return t if OBJECT is a nonnegative integer. */) |
5842a27b | 519 | (Lisp_Object object) |
7921925c | 520 | { |
39bcc759 | 521 | if (NATNUMP (object)) |
7921925c JB |
522 | return Qt; |
523 | return Qnil; | |
524 | } | |
525 | ||
526 | DEFUN ("numberp", Fnumberp, Snumberp, 1, 1, 0, | |
8c1a1077 | 527 | doc: /* Return t if OBJECT is a number (floating point or integer). */) |
5842a27b | 528 | (Lisp_Object object) |
7921925c | 529 | { |
39bcc759 | 530 | if (NUMBERP (object)) |
7921925c | 531 | return Qt; |
dbc4e1c1 JB |
532 | else |
533 | return Qnil; | |
7921925c JB |
534 | } |
535 | ||
536 | DEFUN ("number-or-marker-p", Fnumber_or_marker_p, | |
537 | Snumber_or_marker_p, 1, 1, 0, | |
8c1a1077 | 538 | doc: /* Return t if OBJECT is a number or a marker. */) |
5842a27b | 539 | (Lisp_Object object) |
7921925c | 540 | { |
39bcc759 | 541 | if (NUMBERP (object) || MARKERP (object)) |
7921925c JB |
542 | return Qt; |
543 | return Qnil; | |
544 | } | |
464f8898 | 545 | |
464f8898 | 546 | DEFUN ("floatp", Ffloatp, Sfloatp, 1, 1, 0, |
8c1a1077 | 547 | doc: /* Return t if OBJECT is a floating point number. */) |
5842a27b | 548 | (Lisp_Object object) |
464f8898 | 549 | { |
39bcc759 | 550 | if (FLOATP (object)) |
464f8898 RS |
551 | return Qt; |
552 | return Qnil; | |
553 | } | |
cc94f3b2 | 554 | |
7921925c | 555 | \f |
32e5c58c | 556 | /* Extract and set components of lists. */ |
7921925c | 557 | |
a7ca3326 | 558 | DEFUN ("car", Fcar, Scar, 1, 1, 0, |
8c1a1077 | 559 | doc: /* Return the car of LIST. If arg is nil, return nil. |
9701c742 LT |
560 | Error if arg is not nil and not a cons cell. See also `car-safe'. |
561 | ||
da46c5be LT |
562 | See Info node `(elisp)Cons Cells' for a discussion of related basic |
563 | Lisp concepts such as car, cdr, cons cell and list. */) | |
5842a27b | 564 | (register Lisp_Object list) |
7921925c | 565 | { |
0c64a8cd | 566 | return CAR (list); |
7921925c JB |
567 | } |
568 | ||
a7ca3326 | 569 | DEFUN ("car-safe", Fcar_safe, Scar_safe, 1, 1, 0, |
8c1a1077 | 570 | doc: /* Return the car of OBJECT if it is a cons cell, or else nil. */) |
5842a27b | 571 | (Lisp_Object object) |
7921925c | 572 | { |
0c64a8cd | 573 | return CAR_SAFE (object); |
7921925c JB |
574 | } |
575 | ||
a7ca3326 | 576 | DEFUN ("cdr", Fcdr, Scdr, 1, 1, 0, |
8c1a1077 | 577 | doc: /* Return the cdr of LIST. If arg is nil, return nil. |
9701c742 LT |
578 | Error if arg is not nil and not a cons cell. See also `cdr-safe'. |
579 | ||
da46c5be LT |
580 | See Info node `(elisp)Cons Cells' for a discussion of related basic |
581 | Lisp concepts such as cdr, car, cons cell and list. */) | |
5842a27b | 582 | (register Lisp_Object list) |
7921925c | 583 | { |
0c64a8cd | 584 | return CDR (list); |
7921925c JB |
585 | } |
586 | ||
a7ca3326 | 587 | DEFUN ("cdr-safe", Fcdr_safe, Scdr_safe, 1, 1, 0, |
8c1a1077 | 588 | doc: /* Return the cdr of OBJECT if it is a cons cell, or else nil. */) |
5842a27b | 589 | (Lisp_Object object) |
7921925c | 590 | { |
0c64a8cd | 591 | return CDR_SAFE (object); |
7921925c JB |
592 | } |
593 | ||
a7ca3326 | 594 | DEFUN ("setcar", Fsetcar, Ssetcar, 2, 2, 0, |
8c1a1077 | 595 | doc: /* Set the car of CELL to be NEWCAR. Returns NEWCAR. */) |
5842a27b | 596 | (register Lisp_Object cell, Lisp_Object newcar) |
7921925c | 597 | { |
0c64a8cd | 598 | CHECK_CONS (cell); |
7921925c | 599 | CHECK_IMPURE (cell); |
f3fbd155 | 600 | XSETCAR (cell, newcar); |
7921925c JB |
601 | return newcar; |
602 | } | |
603 | ||
a7ca3326 | 604 | DEFUN ("setcdr", Fsetcdr, Ssetcdr, 2, 2, 0, |
8c1a1077 | 605 | doc: /* Set the cdr of CELL to be NEWCDR. Returns NEWCDR. */) |
5842a27b | 606 | (register Lisp_Object cell, Lisp_Object newcdr) |
7921925c | 607 | { |
0c64a8cd | 608 | CHECK_CONS (cell); |
7921925c | 609 | CHECK_IMPURE (cell); |
f3fbd155 | 610 | XSETCDR (cell, newcdr); |
7921925c JB |
611 | return newcdr; |
612 | } | |
613 | \f | |
1ec4b7b2 | 614 | /* Extract and set components of symbols. */ |
7921925c | 615 | |
a7ca3326 | 616 | DEFUN ("boundp", Fboundp, Sboundp, 1, 1, 0, |
a9de9f0c GM |
617 | doc: /* Return t if SYMBOL's value is not void. |
618 | Note that if `lexical-binding' is in effect, this refers to the | |
619 | global value outside of any lexical scope. */) | |
5842a27b | 620 | (register Lisp_Object symbol) |
7921925c JB |
621 | { |
622 | Lisp_Object valcontents; | |
844e0de1 | 623 | sym_t sym; |
b7826503 | 624 | CHECK_SYMBOL (symbol); |
ce5b453a | 625 | sym = XSYMBOL (symbol); |
7921925c | 626 | |
ce5b453a | 627 | start: |
844e0de1 | 628 | switch (SYMBOL_REDIRECT (sym)) |
ce5b453a SM |
629 | { |
630 | case SYMBOL_PLAINVAL: valcontents = SYMBOL_VAL (sym); break; | |
631 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
632 | case SYMBOL_LOCALIZED: | |
633 | { | |
634 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
635 | if (blv->fwd) | |
636 | /* In set_internal, we un-forward vars when their value is | |
7be68de5 | 637 | set to Qunbound. */ |
ce5b453a SM |
638 | return Qt; |
639 | else | |
640 | { | |
641 | swap_in_symval_forwarding (sym, blv); | |
a04e2c62 | 642 | valcontents = blv_value (blv); |
ce5b453a SM |
643 | } |
644 | break; | |
645 | } | |
646 | case SYMBOL_FORWARDED: | |
647 | /* In set_internal, we un-forward vars when their value is | |
7be68de5 | 648 | set to Qunbound. */ |
ce5b453a | 649 | return Qt; |
1088b922 | 650 | default: emacs_abort (); |
ce5b453a | 651 | } |
7921925c | 652 | |
1bfcade3 | 653 | return (EQ (valcontents, Qunbound) ? Qnil : Qt); |
7921925c JB |
654 | } |
655 | ||
d1c3da7b BT |
656 | WRAP1 (Ffboundp, "fboundp") |
657 | WRAP1 (Fmakunbound, "makunbound") | |
658 | WRAP1 (Ffmakunbound, "fmakunbound") | |
659 | WRAP1 (Fsymbol_function, "symbol-function") | |
7921925c | 660 | |
8c1a1077 PJ |
661 | DEFUN ("symbol-plist", Fsymbol_plist, Ssymbol_plist, 1, 1, 0, |
662 | doc: /* Return SYMBOL's property list. */) | |
5842a27b | 663 | (register Lisp_Object symbol) |
7921925c | 664 | { |
b7826503 | 665 | CHECK_SYMBOL (symbol); |
061cde10 | 666 | return symbol_plist (symbol); |
7921925c JB |
667 | } |
668 | ||
a7ca3326 | 669 | DEFUN ("symbol-name", Fsymbol_name, Ssymbol_name, 1, 1, 0, |
8c1a1077 | 670 | doc: /* Return SYMBOL's name, a string. */) |
5842a27b | 671 | (register Lisp_Object symbol) |
7921925c JB |
672 | { |
673 | register Lisp_Object name; | |
674 | ||
b7826503 | 675 | CHECK_SYMBOL (symbol); |
84023177 | 676 | name = SYMBOL_NAME (symbol); |
7921925c JB |
677 | return name; |
678 | } | |
679 | ||
d1c3da7b | 680 | WRAP2 (Ffset, "fset") |
7921925c | 681 | |
d2fde41d | 682 | DEFUN ("defalias", Fdefalias, Sdefalias, 2, 3, 0, |
1053a871 | 683 | doc: /* Set SYMBOL's function definition to DEFINITION. |
96143227 RS |
684 | Associates the function with the current load file, if any. |
685 | The optional third argument DOCSTRING specifies the documentation string | |
686 | for SYMBOL; if it is omitted or nil, SYMBOL uses the documentation string | |
1053a871 | 687 | determined by DEFINITION. |
189e7007 GM |
688 | |
689 | Internally, this normally uses `fset', but if SYMBOL has a | |
690 | `defalias-fset-function' property, the associated value is used instead. | |
691 | ||
1053a871 | 692 | The return value is undefined. */) |
5842a27b | 693 | (register Lisp_Object symbol, Lisp_Object definition, Lisp_Object docstring) |
fc08c367 | 694 | { |
8a658a52 | 695 | CHECK_SYMBOL (symbol); |
61b108cc SM |
696 | if (!NILP (Vpurify_flag) |
697 | /* If `definition' is a keymap, immutable (and copying) is wrong. */ | |
698 | && !KEYMAPP (definition)) | |
699 | definition = Fpurecopy (definition); | |
32e5c58c SM |
700 | |
701 | { | |
702 | bool autoload = AUTOLOADP (definition); | |
703 | if (NILP (Vpurify_flag) || !autoload) | |
704 | { /* Only add autoload entries after dumping, because the ones before are | |
705 | not useful and else we get loads of them from the loaddefs.el. */ | |
706 | ||
1d59fbe3 | 707 | if (AUTOLOADP (SYMBOL_FUNCTION (symbol))) |
32e5c58c SM |
708 | /* Remember that the function was already an autoload. */ |
709 | LOADHIST_ATTACH (Fcons (Qt, symbol)); | |
710 | LOADHIST_ATTACH (Fcons (autoload ? Qautoload : Qdefun, symbol)); | |
711 | } | |
712 | } | |
713 | ||
714 | { /* Handle automatic advice activation. */ | |
715 | Lisp_Object hook = Fget (symbol, Qdefalias_fset_function); | |
716 | if (!NILP (hook)) | |
717 | call2 (hook, symbol, definition); | |
718 | else | |
719 | Ffset (symbol, definition); | |
720 | } | |
721 | ||
d2fde41d SM |
722 | if (!NILP (docstring)) |
723 | Fput (symbol, Qfunction_documentation, docstring); | |
1053a871 SM |
724 | /* We used to return `definition', but now that `defun' and `defmacro' expand |
725 | to a call to `defalias', we return `symbol' for backward compatibility | |
726 | (bug#11686). */ | |
727 | return symbol; | |
fc08c367 RS |
728 | } |
729 | ||
7921925c | 730 | DEFUN ("setplist", Fsetplist, Ssetplist, 2, 2, 0, |
6b61353c | 731 | doc: /* Set SYMBOL's property list to NEWPLIST, and return NEWPLIST. */) |
5842a27b | 732 | (register Lisp_Object symbol, Lisp_Object newplist) |
7921925c | 733 | { |
b7826503 | 734 | CHECK_SYMBOL (symbol); |
c644523b | 735 | set_symbol_plist (symbol, newplist); |
7921925c JB |
736 | return newplist; |
737 | } | |
ffd56f97 | 738 | |
6f0e897f | 739 | DEFUN ("subr-arity", Fsubr_arity, Ssubr_arity, 1, 1, 0, |
8c1a1077 PJ |
740 | doc: /* Return minimum and maximum number of args allowed for SUBR. |
741 | SUBR must be a built-in function. | |
742 | The returned value is a pair (MIN . MAX). MIN is the minimum number | |
743 | of args. MAX is the maximum number or the symbol `many', for a | |
744 | function with `&rest' args, or `unevalled' for a special form. */) | |
5842a27b | 745 | (Lisp_Object subr) |
6f0e897f | 746 | { |
62947569 BT |
747 | Lisp_Object min, max; |
748 | Lisp_Object arity; | |
749 | bool special = false; | |
750 | ||
0c64a8cd | 751 | CHECK_SUBR (subr); |
62947569 BT |
752 | if (CONSP (subr) && EQ (XCAR (subr), Qspecial_operator)) |
753 | { | |
754 | subr = XCDR (subr); | |
755 | special = true; | |
756 | } | |
757 | arity = scm_procedure_minimum_arity (subr); | |
758 | if (scm_is_false (arity)) | |
759 | return Qnil; | |
760 | min = XCAR (arity); | |
761 | if (special) | |
762 | max = Qunevalled; | |
763 | else if (scm_is_true (XCAR (XCDR (XCDR (arity))))) | |
764 | max = Qmany; | |
765 | else | |
766 | max = scm_sum (min, XCAR (XCDR (arity))); | |
767 | return Fcons (min, max); | |
6f0e897f DL |
768 | } |
769 | ||
0fddae66 SM |
770 | DEFUN ("subr-name", Fsubr_name, Ssubr_name, 1, 1, 0, |
771 | doc: /* Return name of subroutine SUBR. | |
772 | SUBR must be a built-in function. */) | |
5842a27b | 773 | (Lisp_Object subr) |
0fddae66 | 774 | { |
0c64a8cd | 775 | CHECK_SUBR (subr); |
62947569 BT |
776 | if (CONSP (subr) && EQ (XCAR (subr), Qspecial_operator)) |
777 | subr = XCDR (subr); | |
778 | return Fsymbol_name (SCM_SUBR_NAME (subr)); | |
0fddae66 SM |
779 | } |
780 | ||
a7ca3326 | 781 | DEFUN ("interactive-form", Finteractive_form, Sinteractive_form, 1, 1, 0, |
6b61353c | 782 | doc: /* Return the interactive form of CMD or nil if none. |
df133612 LT |
783 | If CMD is not a command, the return value is nil. |
784 | Value, if non-nil, is a list \(interactive SPEC). */) | |
5842a27b | 785 | (Lisp_Object cmd) |
cc515226 | 786 | { |
c4f46926 | 787 | Lisp_Object fun = indirect_function (cmd); /* Check cycles. */ |
764ea377 | 788 | |
eadf1faa | 789 | if (NILP (fun)) |
c4f46926 SM |
790 | return Qnil; |
791 | ||
792 | /* Use an `interactive-form' property if present, analogous to the | |
32e5c58c | 793 | function-documentation property. */ |
c4f46926 SM |
794 | fun = cmd; |
795 | while (SYMBOLP (fun)) | |
796 | { | |
3860280a | 797 | Lisp_Object tmp = Fget (fun, Qinteractive_form); |
c4f46926 SM |
798 | if (!NILP (tmp)) |
799 | return tmp; | |
800 | else | |
801 | fun = Fsymbol_function (fun); | |
802 | } | |
6b61353c | 803 | |
b06bf4dc BT |
804 | if (COMPILEDP (fun)) |
805 | { | |
806 | if ((ASIZE (fun) & PSEUDOVECTOR_SIZE_MASK) > COMPILED_INTERACTIVE) | |
807 | return list2 (Qinteractive, AREF (fun, COMPILED_INTERACTIVE)); | |
808 | } | |
809 | else if (scm_is_true (scm_procedure_p (fun))) | |
6b61353c | 810 | { |
69f7f524 BT |
811 | Lisp_Object tem = scm_assq (Qinteractive_form, |
812 | scm_procedure_properties (fun)); | |
813 | if (scm_is_pair (tem)) | |
814 | return list2 (Qinteractive, scm_cdr (tem)); | |
6b61353c | 815 | } |
32e5c58c SM |
816 | else if (AUTOLOADP (fun)) |
817 | return Finteractive_form (Fautoload_do_load (fun, cmd, Qnil)); | |
6b61353c KH |
818 | else if (CONSP (fun)) |
819 | { | |
820 | Lisp_Object funcar = XCAR (fun); | |
b38b1ec0 | 821 | if (EQ (funcar, Qclosure)) |
23aba0ea SM |
822 | return Fassq (Qinteractive, Fcdr (Fcdr (XCDR (fun)))); |
823 | else if (EQ (funcar, Qlambda)) | |
6b61353c | 824 | return Fassq (Qinteractive, Fcdr (XCDR (fun))); |
6b61353c | 825 | } |
cc515226 GM |
826 | return Qnil; |
827 | } | |
828 | ||
7921925c | 829 | \f |
f35d5bad GM |
830 | /*********************************************************************** |
831 | Getting and Setting Values of Symbols | |
832 | ***********************************************************************/ | |
833 | ||
834 | /* Return the symbol holding SYMBOL's value. Signal | |
835 | `cyclic-variable-indirection' if SYMBOL's chain of variable | |
836 | indirections contains a loop. */ | |
837 | ||
844e0de1 BT |
838 | sym_t |
839 | indirect_variable (sym_t symbol) | |
f35d5bad | 840 | { |
844e0de1 | 841 | sym_t tortoise, hare; |
f35d5bad GM |
842 | |
843 | hare = tortoise = symbol; | |
844 | ||
844e0de1 | 845 | while (SYMBOL_REDIRECT (hare) == SYMBOL_VARALIAS) |
f35d5bad | 846 | { |
ce5b453a | 847 | hare = SYMBOL_ALIAS (hare); |
844e0de1 | 848 | if (SYMBOL_REDIRECT (hare) != SYMBOL_VARALIAS) |
f35d5bad | 849 | break; |
bfb96cb7 | 850 | |
ce5b453a SM |
851 | hare = SYMBOL_ALIAS (hare); |
852 | tortoise = SYMBOL_ALIAS (tortoise); | |
f35d5bad | 853 | |
ad97b375 SM |
854 | if (hare == tortoise) |
855 | { | |
856 | Lisp_Object tem; | |
857 | XSETSYMBOL (tem, symbol); | |
858 | xsignal1 (Qcyclic_variable_indirection, tem); | |
859 | } | |
f35d5bad GM |
860 | } |
861 | ||
862 | return hare; | |
863 | } | |
864 | ||
865 | ||
866 | DEFUN ("indirect-variable", Findirect_variable, Sindirect_variable, 1, 1, 0, | |
8c1a1077 | 867 | doc: /* Return the variable at the end of OBJECT's variable chain. |
4abcdac8 CY |
868 | If OBJECT is a symbol, follow its variable indirections (if any), and |
869 | return the variable at the end of the chain of aliases. See Info node | |
870 | `(elisp)Variable Aliases'. | |
871 | ||
872 | If OBJECT is not a symbol, just return it. If there is a loop in the | |
873 | chain of aliases, signal a `cyclic-variable-indirection' error. */) | |
5842a27b | 874 | (Lisp_Object object) |
f35d5bad GM |
875 | { |
876 | if (SYMBOLP (object)) | |
946f9a5b | 877 | { |
844e0de1 | 878 | sym_t sym = indirect_variable (XSYMBOL (object)); |
946f9a5b PE |
879 | XSETSYMBOL (object, sym); |
880 | } | |
f35d5bad GM |
881 | return object; |
882 | } | |
883 | ||
7921925c JB |
884 | |
885 | /* Given the raw contents of a symbol value cell, | |
886 | return the Lisp value of the symbol. | |
887 | This does not handle buffer-local variables; use | |
888 | swap_in_symval_forwarding for that. */ | |
889 | ||
890 | Lisp_Object | |
971de7fb | 891 | do_symval_forwarding (register union Lisp_Fwd *valcontents) |
7921925c JB |
892 | { |
893 | register Lisp_Object val; | |
ce5b453a SM |
894 | switch (XFWDTYPE (valcontents)) |
895 | { | |
896 | case Lisp_Fwd_Int: | |
897 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
898 | return val; | |
899 | ||
900 | case Lisp_Fwd_Bool: | |
901 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
902 | ||
903 | case Lisp_Fwd_Obj: | |
904 | return *XOBJFWD (valcontents)->objvar; | |
905 | ||
906 | case Lisp_Fwd_Buffer_Obj: | |
4ce60d2e | 907 | return per_buffer_value (current_buffer, |
ce5b453a SM |
908 | XBUFFER_OBJFWD (valcontents)->offset); |
909 | ||
910 | case Lisp_Fwd_Kboard_Obj: | |
911 | /* We used to simply use current_kboard here, but from Lisp | |
a98edce9 | 912 | code, its value is often unexpected. It seems nicer to |
ce5b453a SM |
913 | allow constructions like this to work as intuitively expected: |
914 | ||
915 | (with-selected-frame frame | |
916 | (define-key local-function-map "\eOP" [f1])) | |
917 | ||
918 | On the other hand, this affects the semantics of | |
919 | last-command and real-last-command, and people may rely on | |
920 | that. I took a quick look at the Lisp codebase, and I | |
921 | don't think anything will break. --lorentey */ | |
922 | return *(Lisp_Object *)(XKBOARD_OBJFWD (valcontents)->offset | |
923 | + (char *)FRAME_KBOARD (SELECTED_FRAME ())); | |
1088b922 | 924 | default: emacs_abort (); |
ce5b453a | 925 | } |
7921925c JB |
926 | } |
927 | ||
d9c2a0f2 EN |
928 | /* Store NEWVAL into SYMBOL, where VALCONTENTS is found in the value cell |
929 | of SYMBOL. If SYMBOL is buffer-local, VALCONTENTS should be the | |
7921925c | 930 | buffer-independent contents of the value cell: forwarded just one |
7a283f36 GM |
931 | step past the buffer-localness. |
932 | ||
933 | BUF non-zero means set the value in buffer BUF instead of the | |
934 | current buffer. This only plays a role for per-buffer variables. */ | |
7921925c | 935 | |
ce5b453a | 936 | static void |
971de7fb | 937 | store_symval_forwarding (union Lisp_Fwd *valcontents, register Lisp_Object newval, struct buffer *buf) |
7921925c | 938 | { |
ce5b453a | 939 | switch (XFWDTYPE (valcontents)) |
7921925c | 940 | { |
ce5b453a SM |
941 | case Lisp_Fwd_Int: |
942 | CHECK_NUMBER (newval); | |
943 | *XINTFWD (valcontents)->intvar = XINT (newval); | |
944 | break; | |
aa3830c4 | 945 | |
ce5b453a SM |
946 | case Lisp_Fwd_Bool: |
947 | *XBOOLFWD (valcontents)->boolvar = !NILP (newval); | |
948 | break; | |
aa3830c4 | 949 | |
ce5b453a SM |
950 | case Lisp_Fwd_Obj: |
951 | *XOBJFWD (valcontents)->objvar = newval; | |
aa3830c4 | 952 | |
ce5b453a SM |
953 | /* If this variable is a default for something stored |
954 | in the buffer itself, such as default-fill-column, | |
955 | find the buffers that don't have local values for it | |
956 | and update them. */ | |
957 | if (XOBJFWD (valcontents)->objvar > (Lisp_Object *) &buffer_defaults | |
958 | && XOBJFWD (valcontents)->objvar < (Lisp_Object *) (&buffer_defaults + 1)) | |
46b2ac21 | 959 | { |
ce5b453a SM |
960 | int offset = ((char *) XOBJFWD (valcontents)->objvar |
961 | - (char *) &buffer_defaults); | |
962 | int idx = PER_BUFFER_IDX (offset); | |
aa3830c4 | 963 | |
8f3a2c26 | 964 | Lisp_Object tail, buf; |
aa3830c4 | 965 | |
ce5b453a SM |
966 | if (idx <= 0) |
967 | break; | |
aa3830c4 | 968 | |
8f3a2c26 | 969 | FOR_EACH_LIVE_BUFFER (tail, buf) |
6b61353c | 970 | { |
8f3a2c26 | 971 | struct buffer *b = XBUFFER (buf); |
6b61353c | 972 | |
ce5b453a | 973 | if (! PER_BUFFER_VALUE_P (b, idx)) |
4ce60d2e | 974 | set_per_buffer_value (b, offset, newval); |
6b61353c | 975 | } |
ce5b453a SM |
976 | } |
977 | break; | |
7403b5c8 | 978 | |
ce5b453a SM |
979 | case Lisp_Fwd_Buffer_Obj: |
980 | { | |
981 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
58cc0a01 | 982 | Lisp_Object predicate = XBUFFER_OBJFWD (valcontents)->predicate; |
ce5b453a | 983 | |
58cc0a01 DA |
984 | if (!NILP (predicate) && !NILP (newval) |
985 | && NILP (call1 (predicate, newval))) | |
986 | wrong_type_argument (predicate, newval); | |
ce5b453a SM |
987 | |
988 | if (buf == NULL) | |
989 | buf = current_buffer; | |
4ce60d2e | 990 | set_per_buffer_value (buf, offset, newval); |
ce5b453a SM |
991 | } |
992 | break; | |
7403b5c8 | 993 | |
ce5b453a SM |
994 | case Lisp_Fwd_Kboard_Obj: |
995 | { | |
996 | char *base = (char *) FRAME_KBOARD (SELECTED_FRAME ()); | |
997 | char *p = base + XKBOARD_OBJFWD (valcontents)->offset; | |
998 | *(Lisp_Object *) p = newval; | |
999 | } | |
7921925c JB |
1000 | break; |
1001 | ||
7921925c | 1002 | default: |
1088b922 | 1003 | emacs_abort (); /* goto def; */ |
7921925c JB |
1004 | } |
1005 | } | |
1006 | ||
d73e321c DA |
1007 | /* Set up SYMBOL to refer to its global binding. This makes it safe |
1008 | to alter the status of other bindings. BEWARE: this may be called | |
1009 | during the mark phase of GC, where we assume that Lisp_Object slots | |
1010 | of BLV are marked after this function has changed them. */ | |
b0d53add GM |
1011 | |
1012 | void | |
844e0de1 | 1013 | swap_in_global_binding (sym_t symbol) |
b0d53add | 1014 | { |
ce5b453a | 1015 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (symbol); |
b0d53add GM |
1016 | |
1017 | /* Unload the previously loaded binding. */ | |
ce5b453a | 1018 | if (blv->fwd) |
a04e2c62 | 1019 | set_blv_value (blv, do_symval_forwarding (blv->fwd)); |
bfb96cb7 | 1020 | |
b0d53add | 1021 | /* Select the global binding in the symbol. */ |
a04e2c62 | 1022 | set_blv_valcell (blv, blv->defcell); |
ce5b453a SM |
1023 | if (blv->fwd) |
1024 | store_symval_forwarding (blv->fwd, XCDR (blv->defcell), NULL); | |
b0d53add GM |
1025 | |
1026 | /* Indicate that the global binding is set up now. */ | |
a04e2c62 DA |
1027 | set_blv_where (blv, Qnil); |
1028 | set_blv_found (blv, 0); | |
b0d53add GM |
1029 | } |
1030 | ||
2829d05f | 1031 | /* Set up the buffer-local symbol SYMBOL for validity in the current buffer. |
42e975f0 RS |
1032 | VALCONTENTS is the contents of its value cell, |
1033 | which points to a struct Lisp_Buffer_Local_Value. | |
1034 | ||
1035 | Return the value forwarded one step past the buffer-local stage. | |
1036 | This could be another forwarding pointer. */ | |
7921925c | 1037 | |
ce5b453a | 1038 | static void |
844e0de1 | 1039 | swap_in_symval_forwarding (sym_t symbol, struct Lisp_Buffer_Local_Value *blv) |
7921925c | 1040 | { |
7921925c | 1041 | register Lisp_Object tem1; |
bfb96cb7 | 1042 | |
ce5b453a SM |
1043 | eassert (blv == SYMBOL_BLV (symbol)); |
1044 | ||
1045 | tem1 = blv->where; | |
7921925c | 1046 | |
42e975f0 | 1047 | if (NILP (tem1) |
ce5b453a SM |
1048 | || (blv->frame_local |
1049 | ? !EQ (selected_frame, tem1) | |
1050 | : current_buffer != XBUFFER (tem1))) | |
7921925c | 1051 | { |
bfb96cb7 | 1052 | |
42e975f0 | 1053 | /* Unload the previously loaded binding. */ |
ce5b453a SM |
1054 | tem1 = blv->valcell; |
1055 | if (blv->fwd) | |
a04e2c62 | 1056 | set_blv_value (blv, do_symval_forwarding (blv->fwd)); |
42e975f0 | 1057 | /* Choose the new binding. */ |
ce5b453a SM |
1058 | { |
1059 | Lisp_Object var; | |
1060 | XSETSYMBOL (var, symbol); | |
1061 | if (blv->frame_local) | |
1062 | { | |
e69b0960 | 1063 | tem1 = assq_no_quit (var, XFRAME (selected_frame)->param_alist); |
a04e2c62 | 1064 | set_blv_where (blv, selected_frame); |
ce5b453a SM |
1065 | } |
1066 | else | |
1067 | { | |
4b4deea2 | 1068 | tem1 = assq_no_quit (var, BVAR (current_buffer, local_var_alist)); |
d73e321c | 1069 | set_blv_where (blv, Fcurrent_buffer ()); |
ce5b453a SM |
1070 | } |
1071 | } | |
1072 | if (!(blv->found = !NILP (tem1))) | |
1073 | tem1 = blv->defcell; | |
b0c2d1c6 | 1074 | |
42e975f0 | 1075 | /* Load the new binding. */ |
a04e2c62 | 1076 | set_blv_valcell (blv, tem1); |
ce5b453a | 1077 | if (blv->fwd) |
a04e2c62 | 1078 | store_symval_forwarding (blv->fwd, blv_value (blv), NULL); |
7921925c | 1079 | } |
7921925c JB |
1080 | } |
1081 | \f | |
14e76af9 JB |
1082 | /* Find the value of a symbol, returning Qunbound if it's not bound. |
1083 | This is helpful for code which just wants to get a variable's value | |
8e6208c5 | 1084 | if it has one, without signaling an error. |
14e76af9 JB |
1085 | Note that it must not be possible to quit |
1086 | within this function. Great care is required for this. */ | |
7921925c | 1087 | |
14e76af9 | 1088 | Lisp_Object |
971de7fb | 1089 | find_symbol_value (Lisp_Object symbol) |
7921925c | 1090 | { |
844e0de1 | 1091 | sym_t sym; |
bfb96cb7 | 1092 | |
b7826503 | 1093 | CHECK_SYMBOL (symbol); |
ce5b453a | 1094 | sym = XSYMBOL (symbol); |
7921925c | 1095 | |
ce5b453a | 1096 | start: |
844e0de1 | 1097 | switch (SYMBOL_REDIRECT (sym)) |
ce5b453a SM |
1098 | { |
1099 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
1100 | case SYMBOL_PLAINVAL: return SYMBOL_VAL (sym); | |
1101 | case SYMBOL_LOCALIZED: | |
1102 | { | |
1103 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
1104 | swap_in_symval_forwarding (sym, blv); | |
a04e2c62 | 1105 | return blv->fwd ? do_symval_forwarding (blv->fwd) : blv_value (blv); |
ce5b453a SM |
1106 | } |
1107 | /* FALLTHROUGH */ | |
1108 | case SYMBOL_FORWARDED: | |
1109 | return do_symval_forwarding (SYMBOL_FWD (sym)); | |
1088b922 | 1110 | default: emacs_abort (); |
ce5b453a | 1111 | } |
7921925c JB |
1112 | } |
1113 | ||
a7ca3326 | 1114 | DEFUN ("symbol-value", Fsymbol_value, Ssymbol_value, 1, 1, 0, |
14d27346 GM |
1115 | doc: /* Return SYMBOL's value. Error if that is void. |
1116 | Note that if `lexical-binding' is in effect, this returns the | |
1117 | global value outside of any lexical scope. */) | |
5842a27b | 1118 | (Lisp_Object symbol) |
14e76af9 | 1119 | { |
0671d7c0 | 1120 | Lisp_Object val; |
14e76af9 | 1121 | |
d9c2a0f2 | 1122 | val = find_symbol_value (symbol); |
740ef0b5 | 1123 | if (!EQ (val, Qunbound)) |
14e76af9 | 1124 | return val; |
740ef0b5 KS |
1125 | |
1126 | xsignal1 (Qvoid_variable, symbol); | |
14e76af9 JB |
1127 | } |
1128 | ||
a7ca3326 | 1129 | DEFUN ("set", Fset, Sset, 2, 2, 0, |
8c1a1077 | 1130 | doc: /* Set SYMBOL's value to NEWVAL, and return NEWVAL. */) |
5842a27b | 1131 | (register Lisp_Object symbol, Lisp_Object newval) |
05ef7169 | 1132 | { |
94b612ad | 1133 | set_internal (symbol, newval, Qnil, 0); |
ce5b453a | 1134 | return newval; |
05ef7169 RS |
1135 | } |
1136 | ||
25638b07 | 1137 | /* Store the value NEWVAL into SYMBOL. |
94b612ad SM |
1138 | If buffer/frame-locality is an issue, WHERE specifies which context to use. |
1139 | (nil stands for the current buffer/frame). | |
2829d05f | 1140 | |
de1339b0 | 1141 | If BINDFLAG is false, then if this symbol is supposed to become |
05ef7169 | 1142 | local in every buffer where it is set, then we make it local. |
de1339b0 | 1143 | If BINDFLAG is true, we don't do that. */ |
05ef7169 | 1144 | |
ce5b453a | 1145 | void |
de1339b0 PE |
1146 | set_internal (Lisp_Object symbol, Lisp_Object newval, Lisp_Object where, |
1147 | bool bindflag) | |
7921925c | 1148 | { |
de1339b0 | 1149 | bool voide = EQ (newval, Qunbound); |
844e0de1 | 1150 | sym_t sym; |
ce5b453a | 1151 | Lisp_Object tem1; |
7921925c | 1152 | |
2829d05f | 1153 | /* If restoring in a dead buffer, do nothing. */ |
94b612ad SM |
1154 | /* if (BUFFERP (where) && NILP (XBUFFER (where)->name)) |
1155 | return; */ | |
2829d05f | 1156 | |
b7826503 | 1157 | CHECK_SYMBOL (symbol); |
ce5b453a | 1158 | if (SYMBOL_CONSTANT_P (symbol)) |
7921925c | 1159 | { |
ce5b453a SM |
1160 | if (NILP (Fkeywordp (symbol)) |
1161 | || !EQ (newval, Fsymbol_value (symbol))) | |
1162 | xsignal1 (Qsetting_constant, symbol); | |
1163 | else | |
1164 | /* Allow setting keywords to their own value. */ | |
1165 | return; | |
7921925c | 1166 | } |
42e975f0 | 1167 | |
ce5b453a | 1168 | sym = XSYMBOL (symbol); |
7921925c | 1169 | |
ce5b453a | 1170 | start: |
844e0de1 | 1171 | switch (SYMBOL_REDIRECT (sym)) |
ce5b453a SM |
1172 | { |
1173 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
1174 | case SYMBOL_PLAINVAL: SET_SYMBOL_VAL (sym , newval); return; | |
1175 | case SYMBOL_LOCALIZED: | |
1176 | { | |
1177 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
94b612ad SM |
1178 | if (NILP (where)) |
1179 | { | |
1180 | if (blv->frame_local) | |
1181 | where = selected_frame; | |
1182 | else | |
1183 | XSETBUFFER (where, current_buffer); | |
1184 | } | |
ce5b453a SM |
1185 | /* If the current buffer is not the buffer whose binding is |
1186 | loaded, or if there may be frame-local bindings and the frame | |
1187 | isn't the right one, or if it's a Lisp_Buffer_Local_Value and | |
1188 | the default binding is loaded, the loaded binding may be the | |
1189 | wrong one. */ | |
94b612ad | 1190 | if (!EQ (blv->where, where) |
bfeae2cf | 1191 | /* Also unload a global binding (if the var is local_if_set). */ |
ce5b453a SM |
1192 | || (EQ (blv->valcell, blv->defcell))) |
1193 | { | |
1194 | /* The currently loaded binding is not necessarily valid. | |
1195 | We need to unload it, and choose a new binding. */ | |
1196 | ||
1197 | /* Write out `realvalue' to the old loaded binding. */ | |
1198 | if (blv->fwd) | |
a04e2c62 | 1199 | set_blv_value (blv, do_symval_forwarding (blv->fwd)); |
b0c2d1c6 | 1200 | |
ce5b453a | 1201 | /* Find the new binding. */ |
94b612ad SM |
1202 | XSETSYMBOL (symbol, sym); /* May have changed via aliasing. */ |
1203 | tem1 = Fassq (symbol, | |
1204 | (blv->frame_local | |
e69b0960 | 1205 | ? XFRAME (where)->param_alist |
4b4deea2 | 1206 | : BVAR (XBUFFER (where), local_var_alist))); |
a04e2c62 | 1207 | set_blv_where (blv, where); |
9e677988 | 1208 | blv->found = 1; |
ce5b453a SM |
1209 | |
1210 | if (NILP (tem1)) | |
1211 | { | |
1212 | /* This buffer still sees the default value. */ | |
1213 | ||
1214 | /* If the variable is a Lisp_Some_Buffer_Local_Value, | |
1215 | or if this is `let' rather than `set', | |
1216 | make CURRENT-ALIST-ELEMENT point to itself, | |
1217 | indicating that we're seeing the default value. | |
1218 | Likewise if the variable has been let-bound | |
1219 | in the current buffer. */ | |
1220 | if (bindflag || !blv->local_if_set | |
1221 | || let_shadows_buffer_binding_p (sym)) | |
1222 | { | |
9e677988 | 1223 | blv->found = 0; |
ce5b453a SM |
1224 | tem1 = blv->defcell; |
1225 | } | |
1226 | /* If it's a local_if_set, being set not bound, | |
1227 | and we're not within a let that was made for this buffer, | |
1228 | create a new buffer-local binding for the variable. | |
1229 | That means, give this buffer a new assoc for a local value | |
1230 | and load that binding. */ | |
1231 | else | |
1232 | { | |
1233 | /* local_if_set is only supported for buffer-local | |
1234 | bindings, not for frame-local bindings. */ | |
1235 | eassert (!blv->frame_local); | |
1236 | tem1 = Fcons (symbol, XCDR (blv->defcell)); | |
39eb03f1 PE |
1237 | bset_local_var_alist |
1238 | (XBUFFER (where), | |
1239 | Fcons (tem1, BVAR (XBUFFER (where), local_var_alist))); | |
ce5b453a SM |
1240 | } |
1241 | } | |
1242 | ||
1243 | /* Record which binding is now loaded. */ | |
a04e2c62 | 1244 | set_blv_valcell (blv, tem1); |
ce5b453a | 1245 | } |
b0c2d1c6 | 1246 | |
ce5b453a | 1247 | /* Store the new value in the cons cell. */ |
a04e2c62 | 1248 | set_blv_value (blv, newval); |
d8cafeb5 | 1249 | |
ce5b453a SM |
1250 | if (blv->fwd) |
1251 | { | |
1252 | if (voide) | |
1253 | /* If storing void (making the symbol void), forward only through | |
1254 | buffer-local indicator, not through Lisp_Objfwd, etc. */ | |
1255 | blv->fwd = NULL; | |
1256 | else | |
94b612ad SM |
1257 | store_symval_forwarding (blv->fwd, newval, |
1258 | BUFFERP (where) | |
1259 | ? XBUFFER (where) : current_buffer); | |
ce5b453a SM |
1260 | } |
1261 | break; | |
1262 | } | |
1263 | case SYMBOL_FORWARDED: | |
1264 | { | |
94b612ad SM |
1265 | struct buffer *buf |
1266 | = BUFFERP (where) ? XBUFFER (where) : current_buffer; | |
ce5b453a SM |
1267 | union Lisp_Fwd *innercontents = SYMBOL_FWD (sym); |
1268 | if (BUFFER_OBJFWDP (innercontents)) | |
1269 | { | |
1270 | int offset = XBUFFER_OBJFWD (innercontents)->offset; | |
1271 | int idx = PER_BUFFER_IDX (offset); | |
1272 | if (idx > 0 | |
1273 | && !bindflag | |
1274 | && !let_shadows_buffer_binding_p (sym)) | |
1275 | SET_PER_BUFFER_VALUE_P (buf, idx, 1); | |
1276 | } | |
569c11e3 | 1277 | |
ce5b453a SM |
1278 | if (voide) |
1279 | { /* If storing void (making the symbol void), forward only through | |
1280 | buffer-local indicator, not through Lisp_Objfwd, etc. */ | |
844e0de1 | 1281 | SET_SYMBOL_REDIRECT (sym, SYMBOL_PLAINVAL); |
ce5b453a SM |
1282 | SET_SYMBOL_VAL (sym, newval); |
1283 | } | |
1284 | else | |
1285 | store_symval_forwarding (/* sym, */ innercontents, newval, buf); | |
1286 | break; | |
1287 | } | |
1088b922 | 1288 | default: emacs_abort (); |
7921925c | 1289 | } |
ce5b453a | 1290 | return; |
7921925c JB |
1291 | } |
1292 | \f | |
1293 | /* Access or set a buffer-local symbol's default value. */ | |
1294 | ||
d9c2a0f2 | 1295 | /* Return the default value of SYMBOL, but don't check for voidness. |
1bfcade3 | 1296 | Return Qunbound if it is void. */ |
7921925c | 1297 | |
112396d6 | 1298 | static Lisp_Object |
971de7fb | 1299 | default_value (Lisp_Object symbol) |
7921925c | 1300 | { |
844e0de1 | 1301 | sym_t sym; |
7921925c | 1302 | |
b7826503 | 1303 | CHECK_SYMBOL (symbol); |
ce5b453a | 1304 | sym = XSYMBOL (symbol); |
7921925c | 1305 | |
ce5b453a | 1306 | start: |
844e0de1 | 1307 | switch (SYMBOL_REDIRECT (sym)) |
7921925c | 1308 | { |
ce5b453a SM |
1309 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1310 | case SYMBOL_PLAINVAL: return SYMBOL_VAL (sym); | |
1311 | case SYMBOL_LOCALIZED: | |
1312 | { | |
1313 | /* If var is set up for a buffer that lacks a local value for it, | |
1314 | the current value is nominally the default value. | |
1315 | But the `realvalue' slot may be more up to date, since | |
1316 | ordinary setq stores just that slot. So use that. */ | |
1317 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
1318 | if (blv->fwd && EQ (blv->valcell, blv->defcell)) | |
1319 | return do_symval_forwarding (blv->fwd); | |
1320 | else | |
1321 | return XCDR (blv->defcell); | |
1322 | } | |
1323 | case SYMBOL_FORWARDED: | |
1324 | { | |
1325 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
7921925c | 1326 | |
ce5b453a SM |
1327 | /* For a built-in buffer-local variable, get the default value |
1328 | rather than letting do_symval_forwarding get the current value. */ | |
1329 | if (BUFFER_OBJFWDP (valcontents)) | |
1330 | { | |
1331 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
1332 | if (PER_BUFFER_IDX (offset) != 0) | |
4ce60d2e | 1333 | return per_buffer_default (offset); |
ce5b453a SM |
1334 | } |
1335 | ||
1336 | /* For other variables, get the current value. */ | |
1337 | return do_symval_forwarding (valcontents); | |
1338 | } | |
1088b922 | 1339 | default: emacs_abort (); |
7921925c | 1340 | } |
7921925c JB |
1341 | } |
1342 | ||
a7ca3326 | 1343 | DEFUN ("default-boundp", Fdefault_boundp, Sdefault_boundp, 1, 1, 0, |
8c1a1077 PJ |
1344 | doc: /* Return t if SYMBOL has a non-void default value. |
1345 | This is the value that is seen in buffers that do not have their own values | |
1346 | for this variable. */) | |
5842a27b | 1347 | (Lisp_Object symbol) |
7921925c JB |
1348 | { |
1349 | register Lisp_Object value; | |
1350 | ||
d9c2a0f2 | 1351 | value = default_value (symbol); |
1bfcade3 | 1352 | return (EQ (value, Qunbound) ? Qnil : Qt); |
7921925c JB |
1353 | } |
1354 | ||
a7ca3326 | 1355 | DEFUN ("default-value", Fdefault_value, Sdefault_value, 1, 1, 0, |
8c1a1077 PJ |
1356 | doc: /* Return SYMBOL's default value. |
1357 | This is the value that is seen in buffers that do not have their own values | |
1358 | for this variable. The default value is meaningful for variables with | |
1359 | local bindings in certain buffers. */) | |
5842a27b | 1360 | (Lisp_Object symbol) |
7921925c | 1361 | { |
a104f656 | 1362 | Lisp_Object value = default_value (symbol); |
740ef0b5 KS |
1363 | if (!EQ (value, Qunbound)) |
1364 | return value; | |
1365 | ||
1366 | xsignal1 (Qvoid_variable, symbol); | |
7921925c JB |
1367 | } |
1368 | ||
a7ca3326 | 1369 | DEFUN ("set-default", Fset_default, Sset_default, 2, 2, 0, |
6e86a75d | 1370 | doc: /* Set SYMBOL's default value to VALUE. SYMBOL and VALUE are evaluated. |
8c1a1077 PJ |
1371 | The default value is seen in buffers that do not have their own values |
1372 | for this variable. */) | |
5842a27b | 1373 | (Lisp_Object symbol, Lisp_Object value) |
7921925c | 1374 | { |
844e0de1 | 1375 | sym_t sym; |
7921925c | 1376 | |
b7826503 | 1377 | CHECK_SYMBOL (symbol); |
ce5b453a | 1378 | if (SYMBOL_CONSTANT_P (symbol)) |
7921925c | 1379 | { |
ce5b453a SM |
1380 | if (NILP (Fkeywordp (symbol)) |
1381 | || !EQ (value, Fdefault_value (symbol))) | |
1382 | xsignal1 (Qsetting_constant, symbol); | |
1383 | else | |
1384 | /* Allow setting keywords to their own value. */ | |
1385 | return value; | |
1386 | } | |
1387 | sym = XSYMBOL (symbol); | |
7921925c | 1388 | |
ce5b453a | 1389 | start: |
844e0de1 | 1390 | switch (SYMBOL_REDIRECT (sym)) |
ce5b453a SM |
1391 | { |
1392 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
1393 | case SYMBOL_PLAINVAL: return Fset (symbol, value); | |
1394 | case SYMBOL_LOCALIZED: | |
1395 | { | |
1396 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
984ef137 | 1397 | |
ce5b453a SM |
1398 | /* Store new value into the DEFAULT-VALUE slot. */ |
1399 | XSETCDR (blv->defcell, value); | |
bfb96cb7 | 1400 | |
ce5b453a SM |
1401 | /* If the default binding is now loaded, set the REALVALUE slot too. */ |
1402 | if (blv->fwd && EQ (blv->defcell, blv->valcell)) | |
1403 | store_symval_forwarding (blv->fwd, value, NULL); | |
1404 | return value; | |
1405 | } | |
1406 | case SYMBOL_FORWARDED: | |
1407 | { | |
1408 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
7921925c | 1409 | |
ce5b453a SM |
1410 | /* Handle variables like case-fold-search that have special slots |
1411 | in the buffer. | |
1412 | Make them work apparently like Lisp_Buffer_Local_Value variables. */ | |
1413 | if (BUFFER_OBJFWDP (valcontents)) | |
1414 | { | |
1415 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
1416 | int idx = PER_BUFFER_IDX (offset); | |
7921925c | 1417 | |
4ce60d2e | 1418 | set_per_buffer_default (offset, value); |
7921925c | 1419 | |
ce5b453a SM |
1420 | /* If this variable is not always local in all buffers, |
1421 | set it in the buffers that don't nominally have a local value. */ | |
1422 | if (idx > 0) | |
1423 | { | |
1424 | struct buffer *b; | |
7921925c | 1425 | |
52b852c7 | 1426 | FOR_EACH_BUFFER (b) |
ce5b453a | 1427 | if (!PER_BUFFER_VALUE_P (b, idx)) |
4ce60d2e | 1428 | set_per_buffer_value (b, offset, value); |
ce5b453a SM |
1429 | } |
1430 | return value; | |
1431 | } | |
1432 | else | |
1433 | return Fset (symbol, value); | |
1434 | } | |
1088b922 | 1435 | default: emacs_abort (); |
ce5b453a | 1436 | } |
7921925c | 1437 | } |
7921925c | 1438 | \f |
a5ca2b75 JB |
1439 | /* Lisp functions for creating and removing buffer-local variables. */ |
1440 | ||
ce5b453a SM |
1441 | union Lisp_Val_Fwd |
1442 | { | |
1443 | Lisp_Object value; | |
1444 | union Lisp_Fwd *fwd; | |
1445 | }; | |
1446 | ||
1447 | static struct Lisp_Buffer_Local_Value * | |
844e0de1 | 1448 | make_blv (sym_t sym, bool forwarded, |
de1339b0 | 1449 | union Lisp_Val_Fwd valcontents) |
ce5b453a | 1450 | { |
38182d90 | 1451 | struct Lisp_Buffer_Local_Value *blv = xmalloc (sizeof *blv); |
c632dfda JD |
1452 | Lisp_Object symbol; |
1453 | Lisp_Object tem; | |
1454 | ||
1455 | XSETSYMBOL (symbol, sym); | |
1456 | tem = Fcons (symbol, (forwarded | |
1457 | ? do_symval_forwarding (valcontents.fwd) | |
1458 | : valcontents.value)); | |
1459 | ||
ce5b453a SM |
1460 | /* Buffer_Local_Values cannot have as realval a buffer-local |
1461 | or keyboard-local forwarding. */ | |
1462 | eassert (!(forwarded && BUFFER_OBJFWDP (valcontents.fwd))); | |
1463 | eassert (!(forwarded && KBOARD_OBJFWDP (valcontents.fwd))); | |
1464 | blv->fwd = forwarded ? valcontents.fwd : NULL; | |
a04e2c62 | 1465 | set_blv_where (blv, Qnil); |
ce5b453a SM |
1466 | blv->frame_local = 0; |
1467 | blv->local_if_set = 0; | |
a04e2c62 DA |
1468 | set_blv_defcell (blv, tem); |
1469 | set_blv_valcell (blv, tem); | |
1470 | set_blv_found (blv, 0); | |
ce5b453a SM |
1471 | return blv; |
1472 | } | |
1473 | ||
a7ca3326 | 1474 | DEFUN ("make-variable-buffer-local", Fmake_variable_buffer_local, |
16a97296 | 1475 | Smake_variable_buffer_local, 1, 1, "vMake Variable Buffer Local: ", |
8c1a1077 PJ |
1476 | doc: /* Make VARIABLE become buffer-local whenever it is set. |
1477 | At any time, the value for the current buffer is in effect, | |
1478 | unless the variable has never been set in this buffer, | |
1479 | in which case the default value is in effect. | |
1480 | Note that binding the variable with `let', or setting it while | |
1481 | a `let'-style binding made in this buffer is in effect, | |
bfb96cb7 | 1482 | does not make the variable buffer-local. Return VARIABLE. |
8c1a1077 | 1483 | |
450533b0 SM |
1484 | This globally affects all uses of this variable, so it belongs together with |
1485 | the variable declaration, rather than with its uses (if you just want to make | |
1486 | a variable local to the current buffer for one particular use, use | |
1487 | `make-local-variable'). Buffer-local bindings are normally cleared | |
1488 | while setting up a new major mode, unless they have a `permanent-local' | |
1489 | property. | |
a9908653 | 1490 | |
8c1a1077 | 1491 | The function `default-value' gets the default value and `set-default' sets it. */) |
5842a27b | 1492 | (register Lisp_Object variable) |
7921925c | 1493 | { |
844e0de1 | 1494 | sym_t sym; |
ce5b453a | 1495 | struct Lisp_Buffer_Local_Value *blv = NULL; |
bfe3e0a2 | 1496 | union Lisp_Val_Fwd valcontents IF_LINT (= {LISP_INITIALLY_ZERO}); |
de1339b0 | 1497 | bool forwarded IF_LINT (= 0); |
7921925c | 1498 | |
b7826503 | 1499 | CHECK_SYMBOL (variable); |
ce5b453a | 1500 | sym = XSYMBOL (variable); |
7921925c | 1501 | |
ce5b453a | 1502 | start: |
844e0de1 | 1503 | switch (SYMBOL_REDIRECT (sym)) |
fd9440c5 | 1504 | { |
ce5b453a SM |
1505 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1506 | case SYMBOL_PLAINVAL: | |
1507 | forwarded = 0; valcontents.value = SYMBOL_VAL (sym); | |
1508 | if (EQ (valcontents.value, Qunbound)) | |
1509 | valcontents.value = Qnil; | |
1510 | break; | |
1511 | case SYMBOL_LOCALIZED: | |
1512 | blv = SYMBOL_BLV (sym); | |
1513 | if (blv->frame_local) | |
1514 | error ("Symbol %s may not be buffer-local", | |
1515 | SDATA (SYMBOL_NAME (variable))); | |
1516 | break; | |
1517 | case SYMBOL_FORWARDED: | |
1518 | forwarded = 1; valcontents.fwd = SYMBOL_FWD (sym); | |
1519 | if (KBOARD_OBJFWDP (valcontents.fwd)) | |
1520 | error ("Symbol %s may not be buffer-local", | |
1521 | SDATA (SYMBOL_NAME (variable))); | |
1522 | else if (BUFFER_OBJFWDP (valcontents.fwd)) | |
1523 | return variable; | |
1524 | break; | |
1088b922 | 1525 | default: emacs_abort (); |
fd9440c5 | 1526 | } |
ce5b453a | 1527 | |
844e0de1 | 1528 | if (SYMBOL_CONSTANT (sym)) |
ce5b453a SM |
1529 | error ("Symbol %s may not be buffer-local", SDATA (SYMBOL_NAME (variable))); |
1530 | ||
1531 | if (!blv) | |
7921925c | 1532 | { |
ce5b453a | 1533 | blv = make_blv (sym, forwarded, valcontents); |
844e0de1 | 1534 | SET_SYMBOL_REDIRECT (sym, SYMBOL_LOCALIZED); |
ce5b453a SM |
1535 | SET_SYMBOL_BLV (sym, blv); |
1536 | { | |
1537 | Lisp_Object symbol; | |
1538 | XSETSYMBOL (symbol, sym); /* In case `variable' is aliased. */ | |
1539 | if (let_shadows_global_binding_p (symbol)) | |
8b1e1112 SM |
1540 | message ("Making %s buffer-local while let-bound!", |
1541 | SDATA (SYMBOL_NAME (variable))); | |
ce5b453a | 1542 | } |
7921925c | 1543 | } |
ce5b453a SM |
1544 | |
1545 | blv->local_if_set = 1; | |
d9c2a0f2 | 1546 | return variable; |
7921925c JB |
1547 | } |
1548 | ||
a7ca3326 | 1549 | DEFUN ("make-local-variable", Fmake_local_variable, Smake_local_variable, |
8c1a1077 PJ |
1550 | 1, 1, "vMake Local Variable: ", |
1551 | doc: /* Make VARIABLE have a separate value in the current buffer. | |
1552 | Other buffers will continue to share a common default value. | |
1553 | \(The buffer-local value of VARIABLE starts out as the same value | |
1554 | VARIABLE previously had. If VARIABLE was void, it remains void.\) | |
a9908653 | 1555 | Return VARIABLE. |
8c1a1077 PJ |
1556 | |
1557 | If the variable is already arranged to become local when set, | |
1558 | this function causes a local value to exist for this buffer, | |
1559 | just as setting the variable would do. | |
1560 | ||
1561 | This function returns VARIABLE, and therefore | |
1562 | (set (make-local-variable 'VARIABLE) VALUE-EXP) | |
1563 | works. | |
1564 | ||
a9908653 RS |
1565 | See also `make-variable-buffer-local'. |
1566 | ||
8c1a1077 | 1567 | Do not use `make-local-variable' to make a hook variable buffer-local. |
515f3f25 | 1568 | Instead, use `add-hook' and specify t for the LOCAL argument. */) |
de1339b0 | 1569 | (Lisp_Object variable) |
7921925c | 1570 | { |
de1339b0 PE |
1571 | Lisp_Object tem; |
1572 | bool forwarded IF_LINT (= 0); | |
bfe3e0a2 | 1573 | union Lisp_Val_Fwd valcontents IF_LINT (= {LISP_INITIALLY_ZERO}); |
844e0de1 | 1574 | sym_t sym; |
ce5b453a | 1575 | struct Lisp_Buffer_Local_Value *blv = NULL; |
7921925c | 1576 | |
b7826503 | 1577 | CHECK_SYMBOL (variable); |
ce5b453a | 1578 | sym = XSYMBOL (variable); |
7921925c | 1579 | |
ce5b453a | 1580 | start: |
844e0de1 | 1581 | switch (SYMBOL_REDIRECT (sym)) |
ce5b453a SM |
1582 | { |
1583 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
1584 | case SYMBOL_PLAINVAL: | |
1585 | forwarded = 0; valcontents.value = SYMBOL_VAL (sym); break; | |
1586 | case SYMBOL_LOCALIZED: | |
1587 | blv = SYMBOL_BLV (sym); | |
1588 | if (blv->frame_local) | |
1589 | error ("Symbol %s may not be buffer-local", | |
1590 | SDATA (SYMBOL_NAME (variable))); | |
1591 | break; | |
1592 | case SYMBOL_FORWARDED: | |
1593 | forwarded = 1; valcontents.fwd = SYMBOL_FWD (sym); | |
1594 | if (KBOARD_OBJFWDP (valcontents.fwd)) | |
1595 | error ("Symbol %s may not be buffer-local", | |
1596 | SDATA (SYMBOL_NAME (variable))); | |
1597 | break; | |
1088b922 | 1598 | default: emacs_abort (); |
ce5b453a SM |
1599 | } |
1600 | ||
844e0de1 | 1601 | if (SYMBOL_CONSTANT (sym)) |
8b1e1112 SM |
1602 | error ("Symbol %s may not be buffer-local", |
1603 | SDATA (SYMBOL_NAME (variable))); | |
7921925c | 1604 | |
ce5b453a SM |
1605 | if (blv ? blv->local_if_set |
1606 | : (forwarded && BUFFER_OBJFWDP (valcontents.fwd))) | |
7921925c | 1607 | { |
d9c2a0f2 | 1608 | tem = Fboundp (variable); |
7921925c JB |
1609 | /* Make sure the symbol has a local value in this particular buffer, |
1610 | by setting it to the same value it already has. */ | |
d9c2a0f2 EN |
1611 | Fset (variable, (EQ (tem, Qt) ? Fsymbol_value (variable) : Qunbound)); |
1612 | return variable; | |
7921925c | 1613 | } |
ce5b453a | 1614 | if (!blv) |
7921925c | 1615 | { |
ce5b453a | 1616 | blv = make_blv (sym, forwarded, valcontents); |
844e0de1 | 1617 | SET_SYMBOL_REDIRECT (sym, SYMBOL_LOCALIZED); |
ce5b453a SM |
1618 | SET_SYMBOL_BLV (sym, blv); |
1619 | { | |
1620 | Lisp_Object symbol; | |
1621 | XSETSYMBOL (symbol, sym); /* In case `variable' is aliased. */ | |
1622 | if (let_shadows_global_binding_p (symbol)) | |
8b1e1112 SM |
1623 | message ("Making %s local to %s while let-bound!", |
1624 | SDATA (SYMBOL_NAME (variable)), | |
4b4deea2 | 1625 | SDATA (BVAR (current_buffer, name))); |
ce5b453a | 1626 | } |
7921925c | 1627 | } |
ce5b453a | 1628 | |
42e975f0 | 1629 | /* Make sure this buffer has its own value of symbol. */ |
ce5b453a | 1630 | XSETSYMBOL (variable, sym); /* Update in case of aliasing. */ |
4b4deea2 | 1631 | tem = Fassq (variable, BVAR (current_buffer, local_var_alist)); |
a33ef3ab | 1632 | if (NILP (tem)) |
7921925c | 1633 | { |
ce5b453a SM |
1634 | if (let_shadows_buffer_binding_p (sym)) |
1635 | message ("Making %s buffer-local while locally let-bound!", | |
1636 | SDATA (SYMBOL_NAME (variable))); | |
1637 | ||
a5d004a1 RS |
1638 | /* Swap out any local binding for some other buffer, and make |
1639 | sure the current value is permanently recorded, if it's the | |
1640 | default value. */ | |
d9c2a0f2 | 1641 | find_symbol_value (variable); |
a5d004a1 | 1642 | |
39eb03f1 PE |
1643 | bset_local_var_alist |
1644 | (current_buffer, | |
1645 | Fcons (Fcons (variable, XCDR (blv->defcell)), | |
1646 | BVAR (current_buffer, local_var_alist))); | |
7921925c JB |
1647 | |
1648 | /* Make sure symbol does not think it is set up for this buffer; | |
42e975f0 | 1649 | force it to look once again for this buffer's value. */ |
ce5b453a | 1650 | if (current_buffer == XBUFFER (blv->where)) |
a04e2c62 DA |
1651 | set_blv_where (blv, Qnil); |
1652 | set_blv_found (blv, 0); | |
7921925c | 1653 | } |
a5ca2b75 | 1654 | |
42e975f0 RS |
1655 | /* If the symbol forwards into a C variable, then load the binding |
1656 | for this buffer now. If C code modifies the variable before we | |
1657 | load the binding in, then that new value will clobber the default | |
1658 | binding the next time we unload it. */ | |
ce5b453a SM |
1659 | if (blv->fwd) |
1660 | swap_in_symval_forwarding (sym, blv); | |
a5ca2b75 | 1661 | |
d9c2a0f2 | 1662 | return variable; |
7921925c JB |
1663 | } |
1664 | ||
1665 | DEFUN ("kill-local-variable", Fkill_local_variable, Skill_local_variable, | |
8c1a1077 PJ |
1666 | 1, 1, "vKill Local Variable: ", |
1667 | doc: /* Make VARIABLE no longer have a separate value in the current buffer. | |
bfb96cb7 | 1668 | From now on the default value will apply in this buffer. Return VARIABLE. */) |
5842a27b | 1669 | (register Lisp_Object variable) |
7921925c | 1670 | { |
ce5b453a SM |
1671 | register Lisp_Object tem; |
1672 | struct Lisp_Buffer_Local_Value *blv; | |
844e0de1 | 1673 | sym_t sym; |
7921925c | 1674 | |
b7826503 | 1675 | CHECK_SYMBOL (variable); |
ce5b453a | 1676 | sym = XSYMBOL (variable); |
7921925c | 1677 | |
ce5b453a | 1678 | start: |
844e0de1 | 1679 | switch (SYMBOL_REDIRECT (sym)) |
7921925c | 1680 | { |
ce5b453a SM |
1681 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1682 | case SYMBOL_PLAINVAL: return variable; | |
1683 | case SYMBOL_FORWARDED: | |
1684 | { | |
1685 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
1686 | if (BUFFER_OBJFWDP (valcontents)) | |
1687 | { | |
1688 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
1689 | int idx = PER_BUFFER_IDX (offset); | |
1690 | ||
1691 | if (idx > 0) | |
1692 | { | |
1693 | SET_PER_BUFFER_VALUE_P (current_buffer, idx, 0); | |
4ce60d2e DA |
1694 | set_per_buffer_value (current_buffer, offset, |
1695 | per_buffer_default (offset)); | |
ce5b453a SM |
1696 | } |
1697 | } | |
1698 | return variable; | |
1699 | } | |
1700 | case SYMBOL_LOCALIZED: | |
1701 | blv = SYMBOL_BLV (sym); | |
1702 | if (blv->frame_local) | |
1703 | return variable; | |
1704 | break; | |
1088b922 | 1705 | default: emacs_abort (); |
7921925c JB |
1706 | } |
1707 | ||
42e975f0 | 1708 | /* Get rid of this buffer's alist element, if any. */ |
ad97b375 | 1709 | XSETSYMBOL (variable, sym); /* Propagate variable indirection. */ |
4b4deea2 | 1710 | tem = Fassq (variable, BVAR (current_buffer, local_var_alist)); |
a33ef3ab | 1711 | if (!NILP (tem)) |
39eb03f1 PE |
1712 | bset_local_var_alist |
1713 | (current_buffer, | |
1714 | Fdelq (tem, BVAR (current_buffer, local_var_alist))); | |
7921925c | 1715 | |
42e975f0 RS |
1716 | /* If the symbol is set up with the current buffer's binding |
1717 | loaded, recompute its value. We have to do it now, or else | |
1718 | forwarded objects won't work right. */ | |
7921925c | 1719 | { |
ce5b453a SM |
1720 | Lisp_Object buf; XSETBUFFER (buf, current_buffer); |
1721 | if (EQ (buf, blv->where)) | |
79c83e03 | 1722 | { |
a04e2c62 | 1723 | set_blv_where (blv, Qnil); |
9e677988 | 1724 | blv->found = 0; |
978dd578 | 1725 | find_symbol_value (variable); |
79c83e03 | 1726 | } |
7921925c JB |
1727 | } |
1728 | ||
d9c2a0f2 | 1729 | return variable; |
7921925c | 1730 | } |
62476adc | 1731 | |
b0c2d1c6 RS |
1732 | /* Lisp functions for creating and removing buffer-local variables. */ |
1733 | ||
ab795c65 GM |
1734 | /* Obsolete since 22.2. NB adjust doc of modify-frame-parameters |
1735 | when/if this is removed. */ | |
1736 | ||
b0c2d1c6 | 1737 | DEFUN ("make-variable-frame-local", Fmake_variable_frame_local, Smake_variable_frame_local, |
8c1a1077 PJ |
1738 | 1, 1, "vMake Variable Frame Local: ", |
1739 | doc: /* Enable VARIABLE to have frame-local bindings. | |
4d4d36b1 RS |
1740 | This does not create any frame-local bindings for VARIABLE, |
1741 | it just makes them possible. | |
1742 | ||
1743 | A frame-local binding is actually a frame parameter value. | |
1744 | If a frame F has a value for the frame parameter named VARIABLE, | |
1745 | that also acts as a frame-local binding for VARIABLE in F-- | |
1746 | provided this function has been called to enable VARIABLE | |
1747 | to have frame-local bindings at all. | |
1748 | ||
1749 | The only way to create a frame-local binding for VARIABLE in a frame | |
1750 | is to set the VARIABLE frame parameter of that frame. See | |
1751 | `modify-frame-parameters' for how to set frame parameters. | |
1752 | ||
a02a1384 GM |
1753 | Note that since Emacs 23.1, variables cannot be both buffer-local and |
1754 | frame-local any more (buffer-local bindings used to take precedence over | |
1755 | frame-local bindings). */) | |
de1339b0 | 1756 | (Lisp_Object variable) |
b0c2d1c6 | 1757 | { |
de1339b0 | 1758 | bool forwarded; |
ce5b453a | 1759 | union Lisp_Val_Fwd valcontents; |
844e0de1 | 1760 | sym_t sym; |
ce5b453a | 1761 | struct Lisp_Buffer_Local_Value *blv = NULL; |
b0c2d1c6 | 1762 | |
b7826503 | 1763 | CHECK_SYMBOL (variable); |
ce5b453a | 1764 | sym = XSYMBOL (variable); |
b0c2d1c6 | 1765 | |
ce5b453a | 1766 | start: |
844e0de1 | 1767 | switch (SYMBOL_REDIRECT (sym)) |
42e975f0 | 1768 | { |
ce5b453a SM |
1769 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1770 | case SYMBOL_PLAINVAL: | |
1771 | forwarded = 0; valcontents.value = SYMBOL_VAL (sym); | |
1772 | if (EQ (valcontents.value, Qunbound)) | |
1773 | valcontents.value = Qnil; | |
1774 | break; | |
1775 | case SYMBOL_LOCALIZED: | |
1776 | if (SYMBOL_BLV (sym)->frame_local) | |
1777 | return variable; | |
1778 | else | |
1779 | error ("Symbol %s may not be frame-local", | |
1780 | SDATA (SYMBOL_NAME (variable))); | |
1781 | case SYMBOL_FORWARDED: | |
1782 | forwarded = 1; valcontents.fwd = SYMBOL_FWD (sym); | |
1783 | if (KBOARD_OBJFWDP (valcontents.fwd) || BUFFER_OBJFWDP (valcontents.fwd)) | |
1784 | error ("Symbol %s may not be frame-local", | |
1785 | SDATA (SYMBOL_NAME (variable))); | |
1786 | break; | |
1088b922 | 1787 | default: emacs_abort (); |
42e975f0 | 1788 | } |
b0c2d1c6 | 1789 | |
844e0de1 | 1790 | if (SYMBOL_CONSTANT (sym)) |
ce5b453a SM |
1791 | error ("Symbol %s may not be frame-local", SDATA (SYMBOL_NAME (variable))); |
1792 | ||
1793 | blv = make_blv (sym, forwarded, valcontents); | |
1794 | blv->frame_local = 1; | |
844e0de1 | 1795 | SET_SYMBOL_REDIRECT (sym, SYMBOL_LOCALIZED); |
ce5b453a | 1796 | SET_SYMBOL_BLV (sym, blv); |
8b1e1112 SM |
1797 | { |
1798 | Lisp_Object symbol; | |
1799 | XSETSYMBOL (symbol, sym); /* In case `variable' is aliased. */ | |
1800 | if (let_shadows_global_binding_p (symbol)) | |
1801 | message ("Making %s frame-local while let-bound!", | |
1802 | SDATA (SYMBOL_NAME (variable))); | |
1803 | } | |
b0c2d1c6 RS |
1804 | return variable; |
1805 | } | |
1806 | ||
a7ca3326 | 1807 | DEFUN ("local-variable-p", Flocal_variable_p, Slocal_variable_p, |
8c1a1077 PJ |
1808 | 1, 2, 0, |
1809 | doc: /* Non-nil if VARIABLE has a local binding in buffer BUFFER. | |
1810 | BUFFER defaults to the current buffer. */) | |
5842a27b | 1811 | (register Lisp_Object variable, Lisp_Object buffer) |
62476adc | 1812 | { |
c48ead86 | 1813 | register struct buffer *buf; |
844e0de1 | 1814 | sym_t sym; |
c48ead86 KH |
1815 | |
1816 | if (NILP (buffer)) | |
1817 | buf = current_buffer; | |
1818 | else | |
1819 | { | |
b7826503 | 1820 | CHECK_BUFFER (buffer); |
c48ead86 KH |
1821 | buf = XBUFFER (buffer); |
1822 | } | |
62476adc | 1823 | |
b7826503 | 1824 | CHECK_SYMBOL (variable); |
ce5b453a | 1825 | sym = XSYMBOL (variable); |
be95bee9 | 1826 | |
ce5b453a | 1827 | start: |
844e0de1 | 1828 | switch (SYMBOL_REDIRECT (sym)) |
c48ead86 | 1829 | { |
ce5b453a SM |
1830 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1831 | case SYMBOL_PLAINVAL: return Qnil; | |
1832 | case SYMBOL_LOCALIZED: | |
1833 | { | |
1834 | Lisp_Object tail, elt, tmp; | |
1835 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
1836 | XSETBUFFER (tmp, buf); | |
8d1d9587 | 1837 | XSETSYMBOL (variable, sym); /* Update in case of aliasing. */ |
aa3830c4 | 1838 | |
2f592f95 SM |
1839 | if (EQ (blv->where, tmp)) /* The binding is already loaded. */ |
1840 | return blv_found (blv) ? Qt : Qnil; | |
1841 | else | |
1842 | for (tail = BVAR (buf, local_var_alist); CONSP (tail); tail = XCDR (tail)) | |
1843 | { | |
1844 | elt = XCAR (tail); | |
1845 | if (EQ (variable, XCAR (elt))) | |
1846 | { | |
1847 | eassert (!blv->frame_local); | |
1848 | return Qt; | |
1849 | } | |
1850 | } | |
ce5b453a SM |
1851 | return Qnil; |
1852 | } | |
1853 | case SYMBOL_FORWARDED: | |
1854 | { | |
1855 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
1856 | if (BUFFER_OBJFWDP (valcontents)) | |
1857 | { | |
1858 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
1859 | int idx = PER_BUFFER_IDX (offset); | |
1860 | if (idx == -1 || PER_BUFFER_VALUE_P (buf, idx)) | |
1861 | return Qt; | |
1862 | } | |
1863 | return Qnil; | |
1864 | } | |
1088b922 | 1865 | default: emacs_abort (); |
c48ead86 | 1866 | } |
62476adc | 1867 | } |
f4f04cee RS |
1868 | |
1869 | DEFUN ("local-variable-if-set-p", Flocal_variable_if_set_p, Slocal_variable_if_set_p, | |
8c1a1077 | 1870 | 1, 2, 0, |
1a5432bc CY |
1871 | doc: /* Non-nil if VARIABLE is local in buffer BUFFER when set there. |
1872 | BUFFER defaults to the current buffer. | |
1873 | ||
1874 | More precisely, return non-nil if either VARIABLE already has a local | |
1875 | value in BUFFER, or if VARIABLE is automatically buffer-local (see | |
1876 | `make-variable-buffer-local'). */) | |
5842a27b | 1877 | (register Lisp_Object variable, Lisp_Object buffer) |
f4f04cee | 1878 | { |
844e0de1 | 1879 | sym_t sym; |
f4f04cee | 1880 | |
b7826503 | 1881 | CHECK_SYMBOL (variable); |
ce5b453a | 1882 | sym = XSYMBOL (variable); |
f4f04cee | 1883 | |
ce5b453a | 1884 | start: |
844e0de1 | 1885 | switch (SYMBOL_REDIRECT (sym)) |
f4f04cee | 1886 | { |
ce5b453a SM |
1887 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1888 | case SYMBOL_PLAINVAL: return Qnil; | |
1889 | case SYMBOL_LOCALIZED: | |
1890 | { | |
1891 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
1892 | if (blv->local_if_set) | |
1893 | return Qt; | |
1894 | XSETSYMBOL (variable, sym); /* Update in case of aliasing. */ | |
1895 | return Flocal_variable_p (variable, buffer); | |
1896 | } | |
1897 | case SYMBOL_FORWARDED: | |
1898 | /* All BUFFER_OBJFWD slots become local if they are set. */ | |
1899 | return (BUFFER_OBJFWDP (SYMBOL_FWD (sym)) ? Qt : Qnil); | |
1088b922 | 1900 | default: emacs_abort (); |
f4f04cee | 1901 | } |
f4f04cee | 1902 | } |
6b61353c KH |
1903 | |
1904 | DEFUN ("variable-binding-locus", Fvariable_binding_locus, Svariable_binding_locus, | |
1905 | 1, 1, 0, | |
1906 | doc: /* Return a value indicating where VARIABLE's current binding comes from. | |
1907 | If the current binding is buffer-local, the value is the current buffer. | |
1908 | If the current binding is frame-local, the value is the selected frame. | |
1909 | If the current binding is global (the default), the value is nil. */) | |
5842a27b | 1910 | (register Lisp_Object variable) |
6b61353c | 1911 | { |
844e0de1 | 1912 | sym_t sym; |
6b61353c KH |
1913 | |
1914 | CHECK_SYMBOL (variable); | |
ce5b453a | 1915 | sym = XSYMBOL (variable); |
6b61353c KH |
1916 | |
1917 | /* Make sure the current binding is actually swapped in. */ | |
1918 | find_symbol_value (variable); | |
1919 | ||
ce5b453a | 1920 | start: |
844e0de1 | 1921 | switch (SYMBOL_REDIRECT (sym)) |
6b61353c | 1922 | { |
ce5b453a SM |
1923 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1924 | case SYMBOL_PLAINVAL: return Qnil; | |
1925 | case SYMBOL_FORWARDED: | |
1926 | { | |
1927 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
1928 | if (KBOARD_OBJFWDP (valcontents)) | |
d2a95ffb | 1929 | return Fframe_terminal (selected_frame); |
ce5b453a SM |
1930 | else if (!BUFFER_OBJFWDP (valcontents)) |
1931 | return Qnil; | |
1932 | } | |
1933 | /* FALLTHROUGH */ | |
1934 | case SYMBOL_LOCALIZED: | |
6b61353c KH |
1935 | /* For a local variable, record both the symbol and which |
1936 | buffer's or frame's value we are saving. */ | |
1937 | if (!NILP (Flocal_variable_p (variable, Qnil))) | |
1938 | return Fcurrent_buffer (); | |
844e0de1 | 1939 | else if (SYMBOL_REDIRECT (sym) == SYMBOL_LOCALIZED |
a04e2c62 | 1940 | && blv_found (SYMBOL_BLV (sym))) |
ce5b453a SM |
1941 | return SYMBOL_BLV (sym)->where; |
1942 | else | |
1943 | return Qnil; | |
1088b922 | 1944 | default: emacs_abort (); |
6b61353c | 1945 | } |
6b61353c | 1946 | } |
2a42d440 | 1947 | |
c40bb1ba | 1948 | /* This code is disabled now that we use the selected frame to return |
7be68de5 | 1949 | keyboard-local-values. */ |
c40bb1ba | 1950 | #if 0 |
f57e2426 | 1951 | extern struct terminal *get_terminal (Lisp_Object display, int); |
2a42d440 | 1952 | |
a7ca3326 | 1953 | DEFUN ("terminal-local-value", Fterminal_local_value, |
16a97296 | 1954 | Sterminal_local_value, 2, 2, 0, |
6ed8eeff | 1955 | doc: /* Return the terminal-local value of SYMBOL on TERMINAL. |
2a42d440 KL |
1956 | If SYMBOL is not a terminal-local variable, then return its normal |
1957 | value, like `symbol-value'. | |
1958 | ||
708e05dc | 1959 | TERMINAL may be a terminal object, a frame, or nil (meaning the |
6ed8eeff | 1960 | selected frame's terminal device). */) |
5842a27b | 1961 | (Lisp_Object symbol, Lisp_Object terminal) |
2a42d440 KL |
1962 | { |
1963 | Lisp_Object result; | |
6ed8eeff KL |
1964 | struct terminal *t = get_terminal (terminal, 1); |
1965 | push_kboard (t->kboard); | |
2a42d440 | 1966 | result = Fsymbol_value (symbol); |
256c9c3a | 1967 | pop_kboard (); |
2a42d440 KL |
1968 | return result; |
1969 | } | |
1970 | ||
a7ca3326 | 1971 | DEFUN ("set-terminal-local-value", Fset_terminal_local_value, |
16a97296 | 1972 | Sset_terminal_local_value, 3, 3, 0, |
6ed8eeff | 1973 | doc: /* Set the terminal-local binding of SYMBOL on TERMINAL to VALUE. |
2a42d440 | 1974 | If VARIABLE is not a terminal-local variable, then set its normal |
7e59217d KL |
1975 | binding, like `set'. |
1976 | ||
708e05dc | 1977 | TERMINAL may be a terminal object, a frame, or nil (meaning the |
6ed8eeff | 1978 | selected frame's terminal device). */) |
5842a27b | 1979 | (Lisp_Object symbol, Lisp_Object terminal, Lisp_Object value) |
2a42d440 KL |
1980 | { |
1981 | Lisp_Object result; | |
6ed8eeff | 1982 | struct terminal *t = get_terminal (terminal, 1); |
256c9c3a | 1983 | push_kboard (d->kboard); |
2a42d440 | 1984 | result = Fset (symbol, value); |
256c9c3a | 1985 | pop_kboard (); |
2a42d440 KL |
1986 | return result; |
1987 | } | |
c40bb1ba | 1988 | #endif |
7921925c | 1989 | \f |
ffd56f97 JB |
1990 | /* Find the function at the end of a chain of symbol function indirections. */ |
1991 | ||
1992 | /* If OBJECT is a symbol, find the end of its function chain and | |
1993 | return the value found there. If OBJECT is not a symbol, just | |
1994 | return it. If there is a cycle in the function chain, signal a | |
1995 | cyclic-function-indirection error. | |
1996 | ||
1997 | This is like Findirect_function, except that it doesn't signal an | |
1998 | error if the chain ends up unbound. */ | |
1999 | Lisp_Object | |
971de7fb | 2000 | indirect_function (register Lisp_Object object) |
ffd56f97 | 2001 | { |
eb8c3be9 | 2002 | Lisp_Object tortoise, hare; |
ffd56f97 | 2003 | |
eb8c3be9 | 2004 | hare = tortoise = object; |
ffd56f97 JB |
2005 | |
2006 | for (;;) | |
2007 | { | |
eadf1faa | 2008 | if (!SYMBOLP (hare) || NILP (hare)) |
ffd56f97 | 2009 | break; |
1d59fbe3 | 2010 | hare = SYMBOL_FUNCTION (hare); |
eadf1faa | 2011 | if (!SYMBOLP (hare) || NILP (hare)) |
ffd56f97 | 2012 | break; |
1d59fbe3 | 2013 | hare = SYMBOL_FUNCTION (hare); |
ffd56f97 | 2014 | |
1d59fbe3 | 2015 | tortoise = SYMBOL_FUNCTION (tortoise); |
ffd56f97 | 2016 | |
eb8c3be9 | 2017 | if (EQ (hare, tortoise)) |
740ef0b5 | 2018 | xsignal1 (Qcyclic_function_indirection, object); |
ffd56f97 JB |
2019 | } |
2020 | ||
2021 | return hare; | |
2022 | } | |
2023 | ||
a7ca3326 | 2024 | DEFUN ("indirect-function", Findirect_function, Sindirect_function, 1, 2, 0, |
8c1a1077 | 2025 | doc: /* Return the function at the end of OBJECT's function chain. |
0ddb0ae8 TTN |
2026 | If OBJECT is not a symbol, just return it. Otherwise, follow all |
2027 | function indirections to find the final function binding and return it. | |
2028 | If the final symbol in the chain is unbound, signal a void-function error. | |
8350f087 | 2029 | Optional arg NOERROR non-nil means to return nil instead of signaling. |
8c1a1077 PJ |
2030 | Signal a cyclic-function-indirection error if there is a loop in the |
2031 | function chain of symbols. */) | |
5842a27b | 2032 | (register Lisp_Object object, Lisp_Object noerror) |
ffd56f97 JB |
2033 | { |
2034 | Lisp_Object result; | |
2035 | ||
64de53d8 KS |
2036 | /* Optimize for no indirection. */ |
2037 | result = object; | |
eadf1faa | 2038 | if (SYMBOLP (result) && !NILP (result) |
1d59fbe3 | 2039 | && (result = SYMBOL_FUNCTION (result), SYMBOLP (result))) |
64de53d8 | 2040 | result = indirect_function (result); |
eadf1faa | 2041 | if (!NILP (result)) |
64de53d8 | 2042 | return result; |
ffd56f97 | 2043 | |
64de53d8 | 2044 | if (NILP (noerror)) |
740ef0b5 | 2045 | xsignal1 (Qvoid_function, object); |
ffd56f97 | 2046 | |
64de53d8 | 2047 | return Qnil; |
ffd56f97 JB |
2048 | } |
2049 | \f | |
7abaf5cc | 2050 | /* Extract and set vector and string elements. */ |
7921925c | 2051 | |
a7ca3326 | 2052 | DEFUN ("aref", Faref, Saref, 2, 2, 0, |
8c1a1077 PJ |
2053 | doc: /* Return the element of ARRAY at index IDX. |
2054 | ARRAY may be a vector, a string, a char-table, a bool-vector, | |
2055 | or a byte-code object. IDX starts at 0. */) | |
5842a27b | 2056 | (register Lisp_Object array, Lisp_Object idx) |
7921925c | 2057 | { |
ace1712c | 2058 | register EMACS_INT idxval; |
7921925c | 2059 | |
b7826503 | 2060 | CHECK_NUMBER (idx); |
7921925c | 2061 | idxval = XINT (idx); |
e9ebc175 | 2062 | if (STRINGP (array)) |
7921925c | 2063 | { |
ace1712c | 2064 | int c; |
d311d28c | 2065 | ptrdiff_t idxval_byte; |
25638b07 | 2066 | |
d5db4077 | 2067 | if (idxval < 0 || idxval >= SCHARS (array)) |
c24e4efe | 2068 | args_out_of_range (array, idx); |
25638b07 | 2069 | if (! STRING_MULTIBYTE (array)) |
d5db4077 | 2070 | return make_number ((unsigned char) SREF (array, idxval)); |
25638b07 RS |
2071 | idxval_byte = string_char_to_byte (array, idxval); |
2072 | ||
62a6e103 | 2073 | c = STRING_CHAR (SDATA (array) + idxval_byte); |
25638b07 | 2074 | return make_number (c); |
7921925c | 2075 | } |
4d276982 RS |
2076 | else if (BOOL_VECTOR_P (array)) |
2077 | { | |
1c0a7493 | 2078 | if (idxval < 0 || idxval >= bool_vector_size (array)) |
4d276982 | 2079 | args_out_of_range (array, idx); |
df5b4930 | 2080 | return bool_vector_ref (array, idxval); |
4d276982 RS |
2081 | } |
2082 | else if (CHAR_TABLE_P (array)) | |
2083 | { | |
e6e1f521 KH |
2084 | CHECK_CHARACTER (idx); |
2085 | return CHAR_TABLE_REF (array, idxval); | |
4d276982 | 2086 | } |
7921925c | 2087 | else |
c24e4efe | 2088 | { |
90d8445b | 2089 | ptrdiff_t size = 0; |
7f358972 | 2090 | if (VECTORP (array)) |
77b37c05 | 2091 | size = ASIZE (array); |
876c194c | 2092 | else if (COMPILEDP (array)) |
77b37c05 | 2093 | size = ASIZE (array) & PSEUDOVECTOR_SIZE_MASK; |
7f358972 RS |
2094 | else |
2095 | wrong_type_argument (Qarrayp, array); | |
2096 | ||
2097 | if (idxval < 0 || idxval >= size) | |
c24e4efe | 2098 | args_out_of_range (array, idx); |
b9598260 | 2099 | return AREF (array, idxval); |
c24e4efe | 2100 | } |
7921925c JB |
2101 | } |
2102 | ||
a7ca3326 | 2103 | DEFUN ("aset", Faset, Saset, 3, 3, 0, |
8c1a1077 | 2104 | doc: /* Store into the element of ARRAY at index IDX the value NEWELT. |
bfb96cb7 FP |
2105 | Return NEWELT. ARRAY may be a vector, a string, a char-table or a |
2106 | bool-vector. IDX starts at 0. */) | |
5842a27b | 2107 | (register Lisp_Object array, Lisp_Object idx, Lisp_Object newelt) |
7921925c | 2108 | { |
ace1712c | 2109 | register EMACS_INT idxval; |
7921925c | 2110 | |
b7826503 | 2111 | CHECK_NUMBER (idx); |
7921925c | 2112 | idxval = XINT (idx); |
0c64a8cd | 2113 | CHECK_ARRAY (array, Qarrayp); |
7921925c JB |
2114 | CHECK_IMPURE (array); |
2115 | ||
e9ebc175 | 2116 | if (VECTORP (array)) |
c24e4efe | 2117 | { |
77b37c05 | 2118 | if (idxval < 0 || idxval >= ASIZE (array)) |
c24e4efe | 2119 | args_out_of_range (array, idx); |
28be1ada | 2120 | ASET (array, idxval, newelt); |
c24e4efe | 2121 | } |
4d276982 RS |
2122 | else if (BOOL_VECTOR_P (array)) |
2123 | { | |
1c0a7493 | 2124 | if (idxval < 0 || idxval >= bool_vector_size (array)) |
4d276982 | 2125 | args_out_of_range (array, idx); |
df5b4930 | 2126 | bool_vector_set (array, idxval, !NILP (newelt)); |
4d276982 RS |
2127 | } |
2128 | else if (CHAR_TABLE_P (array)) | |
2129 | { | |
e6e1f521 KH |
2130 | CHECK_CHARACTER (idx); |
2131 | CHAR_TABLE_SET (array, idxval, newelt); | |
4d276982 | 2132 | } |
0fed43f3 | 2133 | else |
25638b07 | 2134 | { |
13bdea59 | 2135 | int c; |
25638b07 | 2136 | |
d5db4077 | 2137 | if (idxval < 0 || idxval >= SCHARS (array)) |
25638b07 | 2138 | args_out_of_range (array, idx); |
d9130605 | 2139 | CHECK_CHARACTER (newelt); |
13bdea59 | 2140 | c = XFASTINT (newelt); |
25638b07 | 2141 | |
0fed43f3 | 2142 | if (STRING_MULTIBYTE (array)) |
3c9de1af | 2143 | { |
d311d28c PE |
2144 | ptrdiff_t idxval_byte, nbytes; |
2145 | int prev_bytes, new_bytes; | |
0fed43f3 PE |
2146 | unsigned char workbuf[MAX_MULTIBYTE_LENGTH], *p0 = workbuf, *p1; |
2147 | ||
2148 | nbytes = SBYTES (array); | |
2149 | idxval_byte = string_char_to_byte (array, idxval); | |
d5db4077 | 2150 | p1 = SDATA (array) + idxval_byte; |
0fed43f3 PE |
2151 | prev_bytes = BYTES_BY_CHAR_HEAD (*p1); |
2152 | new_bytes = CHAR_STRING (c, p0); | |
2153 | if (prev_bytes != new_bytes) | |
2154 | { | |
2155 | /* We must relocate the string data. */ | |
d311d28c | 2156 | ptrdiff_t nchars = SCHARS (array); |
0fed43f3 | 2157 | USE_SAFE_ALLOCA; |
98c6f1e3 | 2158 | unsigned char *str = SAFE_ALLOCA (nbytes); |
0fed43f3 | 2159 | |
0fed43f3 | 2160 | memcpy (str, SDATA (array), nbytes); |
69f7f524 | 2161 | allocate_string_data (array, nchars, |
0fed43f3 PE |
2162 | nbytes + new_bytes - prev_bytes); |
2163 | memcpy (SDATA (array), str, idxval_byte); | |
2164 | p1 = SDATA (array) + idxval_byte; | |
2165 | memcpy (p1 + new_bytes, str + idxval_byte + prev_bytes, | |
2166 | nbytes - (idxval_byte + prev_bytes)); | |
2167 | SAFE_FREE (); | |
2168 | clear_string_char_byte_cache (); | |
2169 | } | |
2170 | while (new_bytes--) | |
2171 | *p1++ = *p0++; | |
3c9de1af | 2172 | } |
0fed43f3 | 2173 | else |
5dff5999 | 2174 | { |
0fed43f3 PE |
2175 | if (! SINGLE_BYTE_CHAR_P (c)) |
2176 | { | |
2177 | int i; | |
2178 | ||
2179 | for (i = SBYTES (array) - 1; i >= 0; i--) | |
2180 | if (SREF (array, i) >= 0x80) | |
2181 | args_out_of_range (array, newelt); | |
2182 | /* ARRAY is an ASCII string. Convert it to a multibyte | |
2183 | string, and try `aset' again. */ | |
2184 | STRING_SET_MULTIBYTE (array); | |
2185 | return Faset (array, idx, newelt); | |
2186 | } | |
2187 | SSET (array, idxval, c); | |
5dff5999 | 2188 | } |
7921925c JB |
2189 | } |
2190 | ||
2191 | return newelt; | |
2192 | } | |
7921925c JB |
2193 | \f |
2194 | /* Arithmetic functions */ | |
2195 | ||
ebb99847 BR |
2196 | Lisp_Object |
2197 | arithcompare (Lisp_Object num1, Lisp_Object num2, enum Arith_Comparison comparison) | |
7921925c | 2198 | { |
6bbd7a29 | 2199 | double f1 = 0, f2 = 0; |
de1339b0 | 2200 | bool floatp = 0; |
7921925c | 2201 | |
b7826503 PJ |
2202 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1); |
2203 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2); | |
7921925c | 2204 | |
e9ebc175 | 2205 | if (FLOATP (num1) || FLOATP (num2)) |
7921925c JB |
2206 | { |
2207 | floatp = 1; | |
7539e11f KR |
2208 | f1 = (FLOATP (num1)) ? XFLOAT_DATA (num1) : XINT (num1); |
2209 | f2 = (FLOATP (num2)) ? XFLOAT_DATA (num2) : XINT (num2); | |
7921925c | 2210 | } |
7921925c JB |
2211 | |
2212 | switch (comparison) | |
2213 | { | |
ebb99847 | 2214 | case ARITH_EQUAL: |
7921925c JB |
2215 | if (floatp ? f1 == f2 : XINT (num1) == XINT (num2)) |
2216 | return Qt; | |
2217 | return Qnil; | |
2218 | ||
ebb99847 | 2219 | case ARITH_NOTEQUAL: |
7921925c JB |
2220 | if (floatp ? f1 != f2 : XINT (num1) != XINT (num2)) |
2221 | return Qt; | |
2222 | return Qnil; | |
2223 | ||
ebb99847 | 2224 | case ARITH_LESS: |
7921925c JB |
2225 | if (floatp ? f1 < f2 : XINT (num1) < XINT (num2)) |
2226 | return Qt; | |
2227 | return Qnil; | |
2228 | ||
ebb99847 | 2229 | case ARITH_LESS_OR_EQUAL: |
7921925c JB |
2230 | if (floatp ? f1 <= f2 : XINT (num1) <= XINT (num2)) |
2231 | return Qt; | |
2232 | return Qnil; | |
2233 | ||
ebb99847 | 2234 | case ARITH_GRTR: |
7921925c JB |
2235 | if (floatp ? f1 > f2 : XINT (num1) > XINT (num2)) |
2236 | return Qt; | |
2237 | return Qnil; | |
2238 | ||
ebb99847 | 2239 | case ARITH_GRTR_OR_EQUAL: |
7921925c JB |
2240 | if (floatp ? f1 >= f2 : XINT (num1) >= XINT (num2)) |
2241 | return Qt; | |
2242 | return Qnil; | |
25e40a4b JB |
2243 | |
2244 | default: | |
1088b922 | 2245 | emacs_abort (); |
7921925c JB |
2246 | } |
2247 | } | |
2248 | ||
ebb99847 BR |
2249 | static Lisp_Object |
2250 | arithcompare_driver (ptrdiff_t nargs, Lisp_Object *args, | |
2251 | enum Arith_Comparison comparison) | |
7921925c | 2252 | { |
56a0e352 PE |
2253 | ptrdiff_t argnum; |
2254 | for (argnum = 1; argnum < nargs; ++argnum) | |
ebb99847 | 2255 | { |
4c539a7b | 2256 | if (EQ (Qnil, arithcompare (args[argnum - 1], args[argnum], comparison))) |
ebb99847 BR |
2257 | return Qnil; |
2258 | } | |
2259 | return Qt; | |
7921925c JB |
2260 | } |
2261 | ||
ebb99847 | 2262 | DEFUN ("=", Feqlsign, Seqlsign, 1, MANY, 0, |
53482f41 DA |
2263 | doc: /* Return t if args, all numbers or markers, are equal. |
2264 | usage: (= NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) | |
ebb99847 | 2265 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c | 2266 | { |
ebb99847 | 2267 | return arithcompare_driver (nargs, args, ARITH_EQUAL); |
7921925c JB |
2268 | } |
2269 | ||
ebb99847 | 2270 | DEFUN ("<", Flss, Slss, 1, MANY, 0, |
7b385b02 | 2271 | doc: /* Return t if each arg (a number or marker), is less than the next arg. |
53482f41 | 2272 | usage: (< NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
ebb99847 | 2273 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c | 2274 | { |
ebb99847 | 2275 | return arithcompare_driver (nargs, args, ARITH_LESS); |
7921925c JB |
2276 | } |
2277 | ||
ebb99847 | 2278 | DEFUN (">", Fgtr, Sgtr, 1, MANY, 0, |
7b385b02 | 2279 | doc: /* Return t if each arg (a number or marker) is greater than the next arg. |
53482f41 | 2280 | usage: (> NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
ebb99847 | 2281 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c | 2282 | { |
ebb99847 | 2283 | return arithcompare_driver (nargs, args, ARITH_GRTR); |
7921925c JB |
2284 | } |
2285 | ||
ebb99847 | 2286 | DEFUN ("<=", Fleq, Sleq, 1, MANY, 0, |
7b385b02 | 2287 | doc: /* Return t if each arg (a number or marker) is less than or equal to the next. |
53482f41 | 2288 | usage: (<= NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
ebb99847 BR |
2289 | (ptrdiff_t nargs, Lisp_Object *args) |
2290 | { | |
2291 | return arithcompare_driver (nargs, args, ARITH_LESS_OR_EQUAL); | |
2292 | } | |
2293 | ||
2294 | DEFUN (">=", Fgeq, Sgeq, 1, MANY, 0, | |
7b385b02 | 2295 | doc: /* Return t if each arg (a number or marker) is greater than or equal to the next. |
bd21bf41 | 2296 | usage: (>= NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
ebb99847 | 2297 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c | 2298 | { |
ebb99847 | 2299 | return arithcompare_driver (nargs, args, ARITH_GRTR_OR_EQUAL); |
7921925c JB |
2300 | } |
2301 | ||
2302 | DEFUN ("/=", Fneq, Sneq, 2, 2, 0, | |
8c1a1077 | 2303 | doc: /* Return t if first arg is not equal to second arg. Both must be numbers or markers. */) |
5842a27b | 2304 | (register Lisp_Object num1, Lisp_Object num2) |
7921925c | 2305 | { |
ebb99847 | 2306 | return arithcompare (num1, num2, ARITH_NOTEQUAL); |
7921925c | 2307 | } |
7921925c | 2308 | \f |
be44ca6c PE |
2309 | /* Convert the cons-of-integers, integer, or float value C to an |
2310 | unsigned value with maximum value MAX. Signal an error if C does not | |
2311 | have a valid format or is out of range. */ | |
2312 | uintmax_t | |
2313 | cons_to_unsigned (Lisp_Object c, uintmax_t max) | |
2314 | { | |
de1339b0 | 2315 | bool valid = 0; |
be44ca6c PE |
2316 | uintmax_t val IF_LINT (= 0); |
2317 | if (INTEGERP (c)) | |
2318 | { | |
2319 | valid = 0 <= XINT (c); | |
2320 | val = XINT (c); | |
2321 | } | |
2322 | else if (FLOATP (c)) | |
2323 | { | |
2324 | double d = XFLOAT_DATA (c); | |
2325 | if (0 <= d | |
2326 | && d < (max == UINTMAX_MAX ? (double) UINTMAX_MAX + 1 : max + 1)) | |
2327 | { | |
2328 | val = d; | |
2329 | valid = 1; | |
2330 | } | |
2331 | } | |
2332 | else if (CONSP (c) && NATNUMP (XCAR (c))) | |
2333 | { | |
2334 | uintmax_t top = XFASTINT (XCAR (c)); | |
2335 | Lisp_Object rest = XCDR (c); | |
2336 | if (top <= UINTMAX_MAX >> 24 >> 16 | |
2337 | && CONSP (rest) | |
2338 | && NATNUMP (XCAR (rest)) && XFASTINT (XCAR (rest)) < 1 << 24 | |
2339 | && NATNUMP (XCDR (rest)) && XFASTINT (XCDR (rest)) < 1 << 16) | |
2340 | { | |
2341 | uintmax_t mid = XFASTINT (XCAR (rest)); | |
2342 | val = top << 24 << 16 | mid << 16 | XFASTINT (XCDR (rest)); | |
2343 | valid = 1; | |
2344 | } | |
2345 | else if (top <= UINTMAX_MAX >> 16) | |
2346 | { | |
2347 | if (CONSP (rest)) | |
2348 | rest = XCAR (rest); | |
2349 | if (NATNUMP (rest) && XFASTINT (rest) < 1 << 16) | |
2350 | { | |
2351 | val = top << 16 | XFASTINT (rest); | |
2352 | valid = 1; | |
2353 | } | |
2354 | } | |
2355 | } | |
51cf3e31 | 2356 | |
be44ca6c PE |
2357 | if (! (valid && val <= max)) |
2358 | error ("Not an in-range integer, float, or cons of integers"); | |
2359 | return val; | |
51cf3e31 JB |
2360 | } |
2361 | ||
be44ca6c PE |
2362 | /* Convert the cons-of-integers, integer, or float value C to a signed |
2363 | value with extrema MIN and MAX. Signal an error if C does not have | |
2364 | a valid format or is out of range. */ | |
2365 | intmax_t | |
2366 | cons_to_signed (Lisp_Object c, intmax_t min, intmax_t max) | |
51cf3e31 | 2367 | { |
de1339b0 | 2368 | bool valid = 0; |
be44ca6c | 2369 | intmax_t val IF_LINT (= 0); |
51cf3e31 | 2370 | if (INTEGERP (c)) |
be44ca6c PE |
2371 | { |
2372 | val = XINT (c); | |
2373 | valid = 1; | |
2374 | } | |
2375 | else if (FLOATP (c)) | |
2376 | { | |
2377 | double d = XFLOAT_DATA (c); | |
2378 | if (min <= d | |
2379 | && d < (max == INTMAX_MAX ? (double) INTMAX_MAX + 1 : max + 1)) | |
2380 | { | |
2381 | val = d; | |
2382 | valid = 1; | |
2383 | } | |
2384 | } | |
2385 | else if (CONSP (c) && INTEGERP (XCAR (c))) | |
2386 | { | |
2387 | intmax_t top = XINT (XCAR (c)); | |
2388 | Lisp_Object rest = XCDR (c); | |
2389 | if (INTMAX_MIN >> 24 >> 16 <= top && top <= INTMAX_MAX >> 24 >> 16 | |
2390 | && CONSP (rest) | |
2391 | && NATNUMP (XCAR (rest)) && XFASTINT (XCAR (rest)) < 1 << 24 | |
2392 | && NATNUMP (XCDR (rest)) && XFASTINT (XCDR (rest)) < 1 << 16) | |
2393 | { | |
2394 | intmax_t mid = XFASTINT (XCAR (rest)); | |
2395 | val = top << 24 << 16 | mid << 16 | XFASTINT (XCDR (rest)); | |
2396 | valid = 1; | |
2397 | } | |
2398 | else if (INTMAX_MIN >> 16 <= top && top <= INTMAX_MAX >> 16) | |
2399 | { | |
2400 | if (CONSP (rest)) | |
2401 | rest = XCAR (rest); | |
2402 | if (NATNUMP (rest) && XFASTINT (rest) < 1 << 16) | |
2403 | { | |
2404 | val = top << 16 | XFASTINT (rest); | |
2405 | valid = 1; | |
2406 | } | |
2407 | } | |
2408 | } | |
2409 | ||
2410 | if (! (valid && min <= val && val <= max)) | |
2411 | error ("Not an in-range integer, float, or cons of integers"); | |
2412 | return val; | |
51cf3e31 JB |
2413 | } |
2414 | \f | |
a7ca3326 | 2415 | DEFUN ("number-to-string", Fnumber_to_string, Snumber_to_string, 1, 1, 0, |
bfb96cb7 | 2416 | doc: /* Return the decimal representation of NUMBER as a string. |
8c1a1077 PJ |
2417 | Uses a minus sign if negative. |
2418 | NUMBER may be an integer or a floating point number. */) | |
5842a27b | 2419 | (Lisp_Object number) |
7921925c | 2420 | { |
99027bdd PE |
2421 | char buffer[max (FLOAT_TO_STRING_BUFSIZE, INT_BUFSIZE_BOUND (EMACS_INT))]; |
2422 | int len; | |
7921925c | 2423 | |
b7826503 | 2424 | CHECK_NUMBER_OR_FLOAT (number); |
7921925c | 2425 | |
d9c2a0f2 | 2426 | if (FLOATP (number)) |
99027bdd PE |
2427 | len = float_to_string (buffer, XFLOAT_DATA (number)); |
2428 | else | |
2429 | len = sprintf (buffer, "%"pI"d", XINT (number)); | |
7921925c | 2430 | |
99027bdd | 2431 | return make_unibyte_string (buffer, len); |
7921925c JB |
2432 | } |
2433 | ||
a7ca3326 | 2434 | DEFUN ("string-to-number", Fstring_to_number, Sstring_to_number, 1, 2, 0, |
558ee900 | 2435 | doc: /* Parse STRING as a decimal number and return the number. |
12cb2b06 PE |
2436 | Ignore leading spaces and tabs, and all trailing chars. Return 0 if |
2437 | STRING cannot be parsed as an integer or floating point number. | |
8c1a1077 PJ |
2438 | |
2439 | If BASE, interpret STRING as a number in that base. If BASE isn't | |
2440 | present, base 10 is used. BASE must be between 2 and 16 (inclusive). | |
12cb2b06 | 2441 | If the base used is not 10, STRING is always parsed as an integer. */) |
5842a27b | 2442 | (register Lisp_Object string, Lisp_Object base) |
7921925c | 2443 | { |
57ace6d0 | 2444 | register char *p; |
342858a5 | 2445 | register int b; |
452f4150 | 2446 | Lisp_Object val; |
25e40a4b | 2447 | |
b7826503 | 2448 | CHECK_STRING (string); |
7921925c | 2449 | |
3883fbeb RS |
2450 | if (NILP (base)) |
2451 | b = 10; | |
2452 | else | |
2453 | { | |
b7826503 | 2454 | CHECK_NUMBER (base); |
d311d28c | 2455 | if (! (2 <= XINT (base) && XINT (base) <= 16)) |
740ef0b5 | 2456 | xsignal1 (Qargs_out_of_range, base); |
d311d28c | 2457 | b = XINT (base); |
3883fbeb RS |
2458 | } |
2459 | ||
57ace6d0 | 2460 | p = SSDATA (string); |
0a3e4d65 | 2461 | while (*p == ' ' || *p == '\t') |
25e40a4b JB |
2462 | p++; |
2463 | ||
452f4150 PE |
2464 | val = string_to_number (p, b, 1); |
2465 | return NILP (val) ? make_number (0) : val; | |
7921925c | 2466 | } |
7403b5c8 | 2467 | \f |
7921925c | 2468 | enum arithop |
7a283f36 GM |
2469 | { |
2470 | Aadd, | |
2471 | Asub, | |
2472 | Amult, | |
2473 | Adiv, | |
2474 | Alogand, | |
2475 | Alogior, | |
2476 | Alogxor, | |
2477 | Amax, | |
2478 | Amin | |
2479 | }; | |
2480 | ||
f66c7cf8 PE |
2481 | static Lisp_Object float_arith_driver (double, ptrdiff_t, enum arithop, |
2482 | ptrdiff_t, Lisp_Object *); | |
112396d6 | 2483 | static Lisp_Object |
f66c7cf8 | 2484 | arith_driver (enum arithop code, ptrdiff_t nargs, Lisp_Object *args) |
7921925c | 2485 | { |
de1339b0 PE |
2486 | Lisp_Object val; |
2487 | ptrdiff_t argnum, ok_args; | |
2488 | EMACS_INT accum = 0; | |
2489 | EMACS_INT next, ok_accum; | |
2490 | bool overflow = 0; | |
0ae6bdee | 2491 | |
7393bcbb | 2492 | switch (code) |
7921925c JB |
2493 | { |
2494 | case Alogior: | |
2495 | case Alogxor: | |
2496 | case Aadd: | |
2497 | case Asub: | |
7a283f36 GM |
2498 | accum = 0; |
2499 | break; | |
7921925c | 2500 | case Amult: |
7a283f36 GM |
2501 | accum = 1; |
2502 | break; | |
7921925c | 2503 | case Alogand: |
7a283f36 GM |
2504 | accum = -1; |
2505 | break; | |
2506 | default: | |
2507 | break; | |
7921925c JB |
2508 | } |
2509 | ||
2510 | for (argnum = 0; argnum < nargs; argnum++) | |
2511 | { | |
0ae6bdee PE |
2512 | if (! overflow) |
2513 | { | |
2514 | ok_args = argnum; | |
2515 | ok_accum = accum; | |
2516 | } | |
2517 | ||
7a283f36 GM |
2518 | /* Using args[argnum] as argument to CHECK_NUMBER_... */ |
2519 | val = args[argnum]; | |
b7826503 | 2520 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val); |
7921925c | 2521 | |
7a283f36 | 2522 | if (FLOATP (val)) |
0ae6bdee | 2523 | return float_arith_driver (ok_accum, ok_args, code, |
7a283f36 GM |
2524 | nargs, args); |
2525 | args[argnum] = val; | |
7921925c | 2526 | next = XINT (args[argnum]); |
7393bcbb | 2527 | switch (code) |
7921925c | 2528 | { |
7a283f36 | 2529 | case Aadd: |
0ae6bdee PE |
2530 | if (INT_ADD_OVERFLOW (accum, next)) |
2531 | { | |
2532 | overflow = 1; | |
2533 | accum &= INTMASK; | |
2534 | } | |
7a283f36 GM |
2535 | accum += next; |
2536 | break; | |
7921925c | 2537 | case Asub: |
0ae6bdee PE |
2538 | if (INT_SUBTRACT_OVERFLOW (accum, next)) |
2539 | { | |
2540 | overflow = 1; | |
2541 | accum &= INTMASK; | |
2542 | } | |
e64981da | 2543 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c | 2544 | break; |
7a283f36 | 2545 | case Amult: |
0ae6bdee PE |
2546 | if (INT_MULTIPLY_OVERFLOW (accum, next)) |
2547 | { | |
c8a9ca5a | 2548 | EMACS_UINT a = accum, b = next, ab = a * b; |
0ae6bdee | 2549 | overflow = 1; |
c8a9ca5a | 2550 | accum = ab & INTMASK; |
0ae6bdee PE |
2551 | } |
2552 | else | |
2553 | accum *= next; | |
7a283f36 | 2554 | break; |
7921925c | 2555 | case Adiv: |
7a283f36 GM |
2556 | if (!argnum) |
2557 | accum = next; | |
87fbf902 RS |
2558 | else |
2559 | { | |
2560 | if (next == 0) | |
740ef0b5 | 2561 | xsignal0 (Qarith_error); |
87fbf902 RS |
2562 | accum /= next; |
2563 | } | |
7921925c | 2564 | break; |
7a283f36 GM |
2565 | case Alogand: |
2566 | accum &= next; | |
2567 | break; | |
2568 | case Alogior: | |
2569 | accum |= next; | |
2570 | break; | |
2571 | case Alogxor: | |
2572 | accum ^= next; | |
2573 | break; | |
2574 | case Amax: | |
2575 | if (!argnum || next > accum) | |
2576 | accum = next; | |
2577 | break; | |
2578 | case Amin: | |
2579 | if (!argnum || next < accum) | |
2580 | accum = next; | |
2581 | break; | |
7921925c JB |
2582 | } |
2583 | } | |
2584 | ||
f187f1f7 | 2585 | XSETINT (val, accum); |
7921925c JB |
2586 | return val; |
2587 | } | |
2588 | ||
1a2f2d33 KH |
2589 | #undef isnan |
2590 | #define isnan(x) ((x) != (x)) | |
2591 | ||
7a283f36 | 2592 | static Lisp_Object |
f66c7cf8 PE |
2593 | float_arith_driver (double accum, ptrdiff_t argnum, enum arithop code, |
2594 | ptrdiff_t nargs, Lisp_Object *args) | |
7921925c JB |
2595 | { |
2596 | register Lisp_Object val; | |
2597 | double next; | |
7403b5c8 | 2598 | |
7921925c JB |
2599 | for (; argnum < nargs; argnum++) |
2600 | { | |
2601 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ | |
b7826503 | 2602 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val); |
7921925c | 2603 | |
e9ebc175 | 2604 | if (FLOATP (val)) |
7921925c | 2605 | { |
7539e11f | 2606 | next = XFLOAT_DATA (val); |
7921925c JB |
2607 | } |
2608 | else | |
2609 | { | |
2610 | args[argnum] = val; /* runs into a compiler bug. */ | |
2611 | next = XINT (args[argnum]); | |
2612 | } | |
7393bcbb | 2613 | switch (code) |
7921925c JB |
2614 | { |
2615 | case Aadd: | |
2616 | accum += next; | |
2617 | break; | |
2618 | case Asub: | |
e64981da | 2619 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c JB |
2620 | break; |
2621 | case Amult: | |
2622 | accum *= next; | |
2623 | break; | |
2624 | case Adiv: | |
2625 | if (!argnum) | |
2626 | accum = next; | |
2627 | else | |
87fbf902 | 2628 | { |
ad8d56b9 | 2629 | if (! IEEE_FLOATING_POINT && next == 0) |
740ef0b5 | 2630 | xsignal0 (Qarith_error); |
87fbf902 RS |
2631 | accum /= next; |
2632 | } | |
7921925c JB |
2633 | break; |
2634 | case Alogand: | |
2635 | case Alogior: | |
2636 | case Alogxor: | |
2637 | return wrong_type_argument (Qinteger_or_marker_p, val); | |
2638 | case Amax: | |
1a2f2d33 | 2639 | if (!argnum || isnan (next) || next > accum) |
7921925c JB |
2640 | accum = next; |
2641 | break; | |
2642 | case Amin: | |
1a2f2d33 | 2643 | if (!argnum || isnan (next) || next < accum) |
7921925c JB |
2644 | accum = next; |
2645 | break; | |
2646 | } | |
2647 | } | |
2648 | ||
2649 | return make_float (accum); | |
2650 | } | |
cc94f3b2 | 2651 | |
7921925c | 2652 | |
a7ca3326 | 2653 | DEFUN ("+", Fplus, Splus, 0, MANY, 0, |
8c1a1077 PJ |
2654 | doc: /* Return sum of any number of arguments, which are numbers or markers. |
2655 | usage: (+ &rest NUMBERS-OR-MARKERS) */) | |
f66c7cf8 | 2656 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2657 | { |
2658 | return arith_driver (Aadd, nargs, args); | |
2659 | } | |
2660 | ||
a7ca3326 | 2661 | DEFUN ("-", Fminus, Sminus, 0, MANY, 0, |
558ee900 | 2662 | doc: /* Negate number or subtract numbers or markers and return the result. |
8c1a1077 | 2663 | With one arg, negates it. With more than one arg, |
f44fba9e | 2664 | subtracts all but the first from the first. |
8c1a1077 | 2665 | usage: (- &optional NUMBER-OR-MARKER &rest MORE-NUMBERS-OR-MARKERS) */) |
f66c7cf8 | 2666 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2667 | { |
2668 | return arith_driver (Asub, nargs, args); | |
2669 | } | |
2670 | ||
a7ca3326 | 2671 | DEFUN ("*", Ftimes, Stimes, 0, MANY, 0, |
be24eadf | 2672 | doc: /* Return product of any number of arguments, which are numbers or markers. |
8c1a1077 | 2673 | usage: (* &rest NUMBERS-OR-MARKERS) */) |
f66c7cf8 | 2674 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2675 | { |
2676 | return arith_driver (Amult, nargs, args); | |
2677 | } | |
2678 | ||
32e5c58c | 2679 | DEFUN ("/", Fquo, Squo, 1, MANY, 0, |
be24eadf | 2680 | doc: /* Return first argument divided by all the remaining arguments. |
f44fba9e | 2681 | The arguments must be numbers or markers. |
32e5c58c | 2682 | usage: (/ DIVIDEND &rest DIVISORS) */) |
f66c7cf8 | 2683 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c | 2684 | { |
f66c7cf8 | 2685 | ptrdiff_t argnum; |
7ef98053 | 2686 | for (argnum = 2; argnum < nargs; argnum++) |
28712a21 JB |
2687 | if (FLOATP (args[argnum])) |
2688 | return float_arith_driver (0, 0, Adiv, nargs, args); | |
7921925c JB |
2689 | return arith_driver (Adiv, nargs, args); |
2690 | } | |
2691 | ||
a7ca3326 | 2692 | DEFUN ("%", Frem, Srem, 2, 2, 0, |
be24eadf | 2693 | doc: /* Return remainder of X divided by Y. |
8c1a1077 | 2694 | Both must be integers or markers. */) |
5842a27b | 2695 | (register Lisp_Object x, Lisp_Object y) |
7921925c JB |
2696 | { |
2697 | Lisp_Object val; | |
2698 | ||
b7826503 PJ |
2699 | CHECK_NUMBER_COERCE_MARKER (x); |
2700 | CHECK_NUMBER_COERCE_MARKER (y); | |
7921925c | 2701 | |
d311d28c | 2702 | if (XINT (y) == 0) |
740ef0b5 | 2703 | xsignal0 (Qarith_error); |
87fbf902 | 2704 | |
d9c2a0f2 | 2705 | XSETINT (val, XINT (x) % XINT (y)); |
7921925c JB |
2706 | return val; |
2707 | } | |
2708 | ||
44fa9da5 | 2709 | DEFUN ("mod", Fmod, Smod, 2, 2, 0, |
be24eadf | 2710 | doc: /* Return X modulo Y. |
8c1a1077 PJ |
2711 | The result falls between zero (inclusive) and Y (exclusive). |
2712 | Both X and Y must be numbers or markers. */) | |
5842a27b | 2713 | (register Lisp_Object x, Lisp_Object y) |
44fa9da5 PE |
2714 | { |
2715 | Lisp_Object val; | |
5260234d | 2716 | EMACS_INT i1, i2; |
44fa9da5 | 2717 | |
b7826503 PJ |
2718 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (x); |
2719 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (y); | |
44fa9da5 | 2720 | |
d9c2a0f2 | 2721 | if (FLOATP (x) || FLOATP (y)) |
ad8d56b9 PE |
2722 | return fmod_float (x, y); |
2723 | ||
d9c2a0f2 EN |
2724 | i1 = XINT (x); |
2725 | i2 = XINT (y); | |
44fa9da5 PE |
2726 | |
2727 | if (i2 == 0) | |
740ef0b5 | 2728 | xsignal0 (Qarith_error); |
7403b5c8 | 2729 | |
44fa9da5 PE |
2730 | i1 %= i2; |
2731 | ||
2732 | /* If the "remainder" comes out with the wrong sign, fix it. */ | |
04f7ec69 | 2733 | if (i2 < 0 ? i1 > 0 : i1 < 0) |
44fa9da5 PE |
2734 | i1 += i2; |
2735 | ||
f187f1f7 | 2736 | XSETINT (val, i1); |
44fa9da5 PE |
2737 | return val; |
2738 | } | |
2739 | ||
a7ca3326 | 2740 | DEFUN ("max", Fmax, Smax, 1, MANY, 0, |
8c1a1077 | 2741 | doc: /* Return largest of all the arguments (which must be numbers or markers). |
f44fba9e | 2742 | The value is always a number; markers are converted to numbers. |
8c1a1077 | 2743 | usage: (max NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
f66c7cf8 | 2744 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2745 | { |
2746 | return arith_driver (Amax, nargs, args); | |
2747 | } | |
2748 | ||
a7ca3326 | 2749 | DEFUN ("min", Fmin, Smin, 1, MANY, 0, |
8c1a1077 | 2750 | doc: /* Return smallest of all the arguments (which must be numbers or markers). |
f44fba9e | 2751 | The value is always a number; markers are converted to numbers. |
8c1a1077 | 2752 | usage: (min NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
f66c7cf8 | 2753 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2754 | { |
2755 | return arith_driver (Amin, nargs, args); | |
2756 | } | |
2757 | ||
2758 | DEFUN ("logand", Flogand, Slogand, 0, MANY, 0, | |
8c1a1077 | 2759 | doc: /* Return bitwise-and of all the arguments. |
f44fba9e | 2760 | Arguments may be integers, or markers converted to integers. |
8c1a1077 | 2761 | usage: (logand &rest INTS-OR-MARKERS) */) |
f66c7cf8 | 2762 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2763 | { |
2764 | return arith_driver (Alogand, nargs, args); | |
2765 | } | |
2766 | ||
2767 | DEFUN ("logior", Flogior, Slogior, 0, MANY, 0, | |
8c1a1077 | 2768 | doc: /* Return bitwise-or of all the arguments. |
f44fba9e | 2769 | Arguments may be integers, or markers converted to integers. |
8c1a1077 | 2770 | usage: (logior &rest INTS-OR-MARKERS) */) |
f66c7cf8 | 2771 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2772 | { |
2773 | return arith_driver (Alogior, nargs, args); | |
2774 | } | |
2775 | ||
2776 | DEFUN ("logxor", Flogxor, Slogxor, 0, MANY, 0, | |
8c1a1077 | 2777 | doc: /* Return bitwise-exclusive-or of all the arguments. |
f44fba9e | 2778 | Arguments may be integers, or markers converted to integers. |
31fb1b2c | 2779 | usage: (logxor &rest INTS-OR-MARKERS) */) |
f66c7cf8 | 2780 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2781 | { |
2782 | return arith_driver (Alogxor, nargs, args); | |
2783 | } | |
2784 | ||
2785 | DEFUN ("ash", Fash, Sash, 2, 2, 0, | |
8c1a1077 PJ |
2786 | doc: /* Return VALUE with its bits shifted left by COUNT. |
2787 | If COUNT is negative, shifting is actually to the right. | |
2788 | In this case, the sign bit is duplicated. */) | |
5842a27b | 2789 | (register Lisp_Object value, Lisp_Object count) |
7921925c JB |
2790 | { |
2791 | register Lisp_Object val; | |
2792 | ||
b7826503 PJ |
2793 | CHECK_NUMBER (value); |
2794 | CHECK_NUMBER (count); | |
7921925c | 2795 | |
81d70626 RS |
2796 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2797 | XSETINT (val, 0); | |
2798 | else if (XINT (count) > 0) | |
6ab1b16c | 2799 | XSETINT (val, XUINT (value) << XFASTINT (count)); |
81d70626 RS |
2800 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2801 | XSETINT (val, XINT (value) < 0 ? -1 : 0); | |
7921925c | 2802 | else |
3d9652eb | 2803 | XSETINT (val, XINT (value) >> -XINT (count)); |
7921925c JB |
2804 | return val; |
2805 | } | |
2806 | ||
2807 | DEFUN ("lsh", Flsh, Slsh, 2, 2, 0, | |
8c1a1077 PJ |
2808 | doc: /* Return VALUE with its bits shifted left by COUNT. |
2809 | If COUNT is negative, shifting is actually to the right. | |
3a9b1297 | 2810 | In this case, zeros are shifted in on the left. */) |
5842a27b | 2811 | (register Lisp_Object value, Lisp_Object count) |
7921925c JB |
2812 | { |
2813 | register Lisp_Object val; | |
2814 | ||
b7826503 PJ |
2815 | CHECK_NUMBER (value); |
2816 | CHECK_NUMBER (count); | |
7921925c | 2817 | |
81d70626 RS |
2818 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2819 | XSETINT (val, 0); | |
2820 | else if (XINT (count) > 0) | |
c8a9ca5a | 2821 | XSETINT (val, XUINT (value) << XFASTINT (count)); |
81d70626 RS |
2822 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2823 | XSETINT (val, 0); | |
7921925c | 2824 | else |
c8a9ca5a | 2825 | XSETINT (val, XUINT (value) >> -XINT (count)); |
7921925c JB |
2826 | return val; |
2827 | } | |
2828 | ||
a7ca3326 | 2829 | DEFUN ("1+", Fadd1, Sadd1, 1, 1, 0, |
8c1a1077 PJ |
2830 | doc: /* Return NUMBER plus one. NUMBER may be a number or a marker. |
2831 | Markers are converted to integers. */) | |
5842a27b | 2832 | (register Lisp_Object number) |
7921925c | 2833 | { |
b7826503 | 2834 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number); |
7921925c | 2835 | |
d9c2a0f2 | 2836 | if (FLOATP (number)) |
7539e11f | 2837 | return (make_float (1.0 + XFLOAT_DATA (number))); |
7921925c | 2838 | |
d9c2a0f2 EN |
2839 | XSETINT (number, XINT (number) + 1); |
2840 | return number; | |
7921925c JB |
2841 | } |
2842 | ||
a7ca3326 | 2843 | DEFUN ("1-", Fsub1, Ssub1, 1, 1, 0, |
8c1a1077 PJ |
2844 | doc: /* Return NUMBER minus one. NUMBER may be a number or a marker. |
2845 | Markers are converted to integers. */) | |
5842a27b | 2846 | (register Lisp_Object number) |
7921925c | 2847 | { |
b7826503 | 2848 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number); |
7921925c | 2849 | |
d9c2a0f2 | 2850 | if (FLOATP (number)) |
7539e11f | 2851 | return (make_float (-1.0 + XFLOAT_DATA (number))); |
7921925c | 2852 | |
d9c2a0f2 EN |
2853 | XSETINT (number, XINT (number) - 1); |
2854 | return number; | |
7921925c JB |
2855 | } |
2856 | ||
2857 | DEFUN ("lognot", Flognot, Slognot, 1, 1, 0, | |
8c1a1077 | 2858 | doc: /* Return the bitwise complement of NUMBER. NUMBER must be an integer. */) |
5842a27b | 2859 | (register Lisp_Object number) |
7921925c | 2860 | { |
b7826503 | 2861 | CHECK_NUMBER (number); |
53924017 | 2862 | XSETINT (number, ~XINT (number)); |
d9c2a0f2 | 2863 | return number; |
7921925c | 2864 | } |
6b61353c | 2865 | |
a7ca3326 | 2866 | DEFUN ("byteorder", Fbyteorder, Sbyteorder, 0, 0, 0, |
6b61353c KH |
2867 | doc: /* Return the byteorder for the machine. |
2868 | Returns 66 (ASCII uppercase B) for big endian machines or 108 (ASCII | |
2869 | lowercase l) for small endian machines. */) | |
5842a27b | 2870 | (void) |
6b61353c KH |
2871 | { |
2872 | unsigned i = 0x04030201; | |
2873 | int order = *(char *)&i == 1 ? 108 : 66; | |
2874 | ||
2875 | return make_number (order); | |
2876 | } | |
2877 | ||
3e0b94e7 DC |
2878 | /* Because we round up the bool vector allocate size to word_size |
2879 | units, we can safely read past the "end" of the vector in the | |
2cf00efc | 2880 | operations below. These extra bits are always zero. */ |
3e0b94e7 | 2881 | |
87c4314d | 2882 | static bits_word |
f2752e01 | 2883 | bool_vector_spare_mask (EMACS_INT nr_bits) |
3e0b94e7 | 2884 | { |
87c4314d | 2885 | return (((bits_word) 1) << (nr_bits % BITS_PER_BITS_WORD)) - 1; |
3e0b94e7 DC |
2886 | } |
2887 | ||
2cf00efc PE |
2888 | /* Info about unsigned long long, falling back on unsigned long |
2889 | if unsigned long long is not available. */ | |
2890 | ||
13a5993b | 2891 | #if HAVE_UNSIGNED_LONG_LONG_INT && defined ULLONG_MAX |
2cf00efc | 2892 | enum { BITS_PER_ULL = CHAR_BIT * sizeof (unsigned long long) }; |
56a0e352 | 2893 | # define ULL_MAX ULLONG_MAX |
3e0b94e7 | 2894 | #else |
2cf00efc | 2895 | enum { BITS_PER_ULL = CHAR_BIT * sizeof (unsigned long) }; |
56a0e352 | 2896 | # define ULL_MAX ULONG_MAX |
2cf00efc | 2897 | # define count_one_bits_ll count_one_bits_l |
56a0e352 | 2898 | # define count_trailing_zeros_ll count_trailing_zeros_l |
3e0b94e7 DC |
2899 | #endif |
2900 | ||
2cf00efc PE |
2901 | /* Shift VAL right by the width of an unsigned long long. |
2902 | BITS_PER_ULL must be less than BITS_PER_BITS_WORD. */ | |
2903 | ||
2904 | static bits_word | |
2905 | shift_right_ull (bits_word w) | |
2906 | { | |
2907 | /* Pacify bogus GCC warning about shift count exceeding type width. */ | |
2908 | int shift = BITS_PER_ULL - BITS_PER_BITS_WORD < 0 ? BITS_PER_ULL : 0; | |
2909 | return w >> shift; | |
2910 | } | |
2911 | ||
2912 | /* Return the number of 1 bits in W. */ | |
2913 | ||
2914 | static int | |
2915 | count_one_bits_word (bits_word w) | |
2916 | { | |
2917 | if (BITS_WORD_MAX <= UINT_MAX) | |
2918 | return count_one_bits (w); | |
2919 | else if (BITS_WORD_MAX <= ULONG_MAX) | |
2920 | return count_one_bits_l (w); | |
2921 | else | |
2922 | { | |
2923 | int i = 0, count = 0; | |
2924 | while (count += count_one_bits_ll (w), | |
0fadc0b0 | 2925 | (i += BITS_PER_ULL) < BITS_PER_BITS_WORD) |
2cf00efc PE |
2926 | w = shift_right_ull (w); |
2927 | return count; | |
2928 | } | |
2929 | } | |
2930 | ||
3e0b94e7 DC |
2931 | enum bool_vector_op { bool_vector_exclusive_or, |
2932 | bool_vector_union, | |
2933 | bool_vector_intersection, | |
2934 | bool_vector_set_difference, | |
2935 | bool_vector_subsetp }; | |
2936 | ||
7be68de5 | 2937 | static Lisp_Object |
23e79746 PE |
2938 | bool_vector_binop_driver (Lisp_Object a, |
2939 | Lisp_Object b, | |
3e0b94e7 DC |
2940 | Lisp_Object dest, |
2941 | enum bool_vector_op op) | |
2942 | { | |
2943 | EMACS_INT nr_bits; | |
23e79746 | 2944 | bits_word *adata, *bdata, *destdata; |
87d86601 | 2945 | ptrdiff_t i = 0; |
3e0b94e7 DC |
2946 | ptrdiff_t nr_words; |
2947 | ||
23e79746 PE |
2948 | CHECK_BOOL_VECTOR (a); |
2949 | CHECK_BOOL_VECTOR (b); | |
3e0b94e7 | 2950 | |
23e79746 PE |
2951 | nr_bits = bool_vector_size (a); |
2952 | if (bool_vector_size (b) != nr_bits) | |
2953 | wrong_length_argument (a, b, dest); | |
3e0b94e7 | 2954 | |
87d86601 | 2955 | nr_words = bool_vector_words (nr_bits); |
23e79746 PE |
2956 | adata = bool_vector_data (a); |
2957 | bdata = bool_vector_data (b); | |
87d86601 | 2958 | |
3e0b94e7 DC |
2959 | if (NILP (dest)) |
2960 | { | |
2cf00efc | 2961 | dest = make_uninit_bool_vector (nr_bits); |
23e79746 | 2962 | destdata = bool_vector_data (dest); |
3e0b94e7 DC |
2963 | } |
2964 | else | |
2965 | { | |
2966 | CHECK_BOOL_VECTOR (dest); | |
23e79746 | 2967 | destdata = bool_vector_data (dest); |
454e2fb9 | 2968 | if (bool_vector_size (dest) != nr_bits) |
23e79746 | 2969 | wrong_length_argument (a, b, dest); |
3e0b94e7 | 2970 | |
87d86601 PE |
2971 | switch (op) |
2972 | { | |
2973 | case bool_vector_exclusive_or: | |
75360f19 PE |
2974 | for (; i < nr_words; i++) |
2975 | if (destdata[i] != (adata[i] ^ bdata[i])) | |
2976 | goto set_dest; | |
87d86601 | 2977 | break; |
7be68de5 | 2978 | |
87d86601 | 2979 | case bool_vector_subsetp: |
75360f19 PE |
2980 | for (; i < nr_words; i++) |
2981 | if (adata[i] &~ bdata[i]) | |
87d86601 | 2982 | return Qnil; |
75360f19 PE |
2983 | return Qt; |
2984 | ||
2985 | case bool_vector_union: | |
2986 | for (; i < nr_words; i++) | |
2987 | if (destdata[i] != (adata[i] | bdata[i])) | |
2988 | goto set_dest; | |
87d86601 PE |
2989 | break; |
2990 | ||
2991 | case bool_vector_intersection: | |
75360f19 PE |
2992 | for (; i < nr_words; i++) |
2993 | if (destdata[i] != (adata[i] & bdata[i])) | |
2994 | goto set_dest; | |
87d86601 | 2995 | break; |
2cf00efc | 2996 | |
87d86601 | 2997 | case bool_vector_set_difference: |
75360f19 PE |
2998 | for (; i < nr_words; i++) |
2999 | if (destdata[i] != (adata[i] &~ bdata[i])) | |
3000 | goto set_dest; | |
87d86601 PE |
3001 | break; |
3002 | } | |
75360f19 PE |
3003 | |
3004 | return Qnil; | |
87d86601 PE |
3005 | } |
3006 | ||
75360f19 | 3007 | set_dest: |
87d86601 | 3008 | switch (op) |
3e0b94e7 | 3009 | { |
87d86601 | 3010 | case bool_vector_exclusive_or: |
75360f19 | 3011 | for (; i < nr_words; i++) |
23e79746 | 3012 | destdata[i] = adata[i] ^ bdata[i]; |
87d86601 PE |
3013 | break; |
3014 | ||
3015 | case bool_vector_union: | |
75360f19 | 3016 | for (; i < nr_words; i++) |
23e79746 | 3017 | destdata[i] = adata[i] | bdata[i]; |
87d86601 | 3018 | break; |
3e0b94e7 | 3019 | |
87d86601 | 3020 | case bool_vector_intersection: |
75360f19 | 3021 | for (; i < nr_words; i++) |
23e79746 | 3022 | destdata[i] = adata[i] & bdata[i]; |
87d86601 | 3023 | break; |
3e0b94e7 | 3024 | |
87d86601 | 3025 | case bool_vector_set_difference: |
75360f19 | 3026 | for (; i < nr_words; i++) |
23e79746 | 3027 | destdata[i] = adata[i] &~ bdata[i]; |
87d86601 | 3028 | break; |
75360f19 PE |
3029 | |
3030 | default: | |
3031 | eassume (0); | |
3e0b94e7 | 3032 | } |
7be68de5 | 3033 | |
87d86601 | 3034 | return dest; |
3e0b94e7 DC |
3035 | } |
3036 | ||
2fcc742f PE |
3037 | /* PRECONDITION must be true. Return VALUE. This odd construction |
3038 | works around a bogus GCC diagnostic "shift count >= width of type". */ | |
3039 | ||
3040 | static int | |
3041 | pre_value (bool precondition, int value) | |
3042 | { | |
3043 | eassume (precondition); | |
3044 | return precondition ? value : 0; | |
3045 | } | |
3046 | ||
3e0b94e7 DC |
3047 | /* Compute the number of trailing zero bits in val. If val is zero, |
3048 | return the number of bits in val. */ | |
595e113b | 3049 | static int |
87c4314d | 3050 | count_trailing_zero_bits (bits_word val) |
3e0b94e7 | 3051 | { |
87c4314d | 3052 | if (BITS_WORD_MAX == UINT_MAX) |
595e113b | 3053 | return count_trailing_zeros (val); |
87c4314d | 3054 | if (BITS_WORD_MAX == ULONG_MAX) |
595e113b | 3055 | return count_trailing_zeros_l (val); |
56a0e352 | 3056 | if (BITS_WORD_MAX == ULL_MAX) |
595e113b | 3057 | return count_trailing_zeros_ll (val); |
595e113b | 3058 | |
87c4314d | 3059 | /* The rest of this code is for the unlikely platform where bits_word differs |
595e113b | 3060 | in width from unsigned int, unsigned long, and unsigned long long. */ |
2cf00efc | 3061 | val |= ~ BITS_WORD_MAX; |
87c4314d | 3062 | if (BITS_WORD_MAX <= UINT_MAX) |
595e113b | 3063 | return count_trailing_zeros (val); |
87c4314d | 3064 | if (BITS_WORD_MAX <= ULONG_MAX) |
595e113b | 3065 | return count_trailing_zeros_l (val); |
2cf00efc PE |
3066 | else |
3067 | { | |
3068 | int count; | |
3069 | for (count = 0; | |
3070 | count < BITS_PER_BITS_WORD - BITS_PER_ULL; | |
3071 | count += BITS_PER_ULL) | |
3072 | { | |
56a0e352 | 3073 | if (val & ULL_MAX) |
2cf00efc PE |
3074 | return count + count_trailing_zeros_ll (val); |
3075 | val = shift_right_ull (val); | |
3076 | } | |
3077 | ||
3078 | if (BITS_PER_BITS_WORD % BITS_PER_ULL != 0 | |
3079 | && BITS_WORD_MAX == (bits_word) -1) | |
2fcc742f PE |
3080 | val |= (bits_word) 1 << pre_value (ULONG_MAX < BITS_WORD_MAX, |
3081 | BITS_PER_BITS_WORD % BITS_PER_ULL); | |
2cf00efc PE |
3082 | return count + count_trailing_zeros_ll (val); |
3083 | } | |
3e0b94e7 DC |
3084 | } |
3085 | ||
87c4314d PE |
3086 | static bits_word |
3087 | bits_word_to_host_endian (bits_word val) | |
3e0b94e7 | 3088 | { |
595e113b PE |
3089 | #ifndef WORDS_BIGENDIAN |
3090 | return val; | |
3e0b94e7 | 3091 | #else |
2cf00efc PE |
3092 | if (BITS_WORD_MAX >> 31 == 1) |
3093 | return bswap_32 (val); | |
3094 | # if HAVE_UNSIGNED_LONG_LONG | |
3095 | if (BITS_WORD_MAX >> 31 >> 31 >> 1 == 1) | |
3096 | return bswap_64 (val); | |
3097 | # endif | |
3098 | { | |
3099 | int i; | |
3100 | bits_word r = 0; | |
3101 | for (i = 0; i < sizeof val; i++) | |
3102 | { | |
3103 | r = ((r << 1 << (CHAR_BIT - 1)) | |
3104 | | (val & ((1u << 1 << (CHAR_BIT - 1)) - 1))); | |
3105 | val = val >> 1 >> (CHAR_BIT - 1); | |
3106 | } | |
3107 | return r; | |
3108 | } | |
3e0b94e7 DC |
3109 | #endif |
3110 | } | |
3111 | ||
3112 | DEFUN ("bool-vector-exclusive-or", Fbool_vector_exclusive_or, | |
3113 | Sbool_vector_exclusive_or, 2, 3, 0, | |
454e2fb9 PE |
3114 | doc: /* Return A ^ B, bitwise exclusive or. |
3115 | If optional third argument C is given, store result into C. | |
3116 | A, B, and C must be bool vectors of the same length. | |
3117 | Return the destination vector if it changed or nil otherwise. */) | |
3e0b94e7 DC |
3118 | (Lisp_Object a, Lisp_Object b, Lisp_Object c) |
3119 | { | |
3120 | return bool_vector_binop_driver (a, b, c, bool_vector_exclusive_or); | |
3121 | } | |
3122 | ||
3123 | DEFUN ("bool-vector-union", Fbool_vector_union, | |
3124 | Sbool_vector_union, 2, 3, 0, | |
454e2fb9 PE |
3125 | doc: /* Return A | B, bitwise or. |
3126 | If optional third argument C is given, store result into C. | |
3127 | A, B, and C must be bool vectors of the same length. | |
3128 | Return the destination vector if it changed or nil otherwise. */) | |
3e0b94e7 DC |
3129 | (Lisp_Object a, Lisp_Object b, Lisp_Object c) |
3130 | { | |
3131 | return bool_vector_binop_driver (a, b, c, bool_vector_union); | |
3132 | } | |
3133 | ||
3134 | DEFUN ("bool-vector-intersection", Fbool_vector_intersection, | |
3135 | Sbool_vector_intersection, 2, 3, 0, | |
454e2fb9 PE |
3136 | doc: /* Return A & B, bitwise and. |
3137 | If optional third argument C is given, store result into C. | |
3138 | A, B, and C must be bool vectors of the same length. | |
3139 | Return the destination vector if it changed or nil otherwise. */) | |
3e0b94e7 DC |
3140 | (Lisp_Object a, Lisp_Object b, Lisp_Object c) |
3141 | { | |
3142 | return bool_vector_binop_driver (a, b, c, bool_vector_intersection); | |
3143 | } | |
3144 | ||
3145 | DEFUN ("bool-vector-set-difference", Fbool_vector_set_difference, | |
3146 | Sbool_vector_set_difference, 2, 3, 0, | |
454e2fb9 PE |
3147 | doc: /* Return A &~ B, set difference. |
3148 | If optional third argument C is given, store result into C. | |
3149 | A, B, and C must be bool vectors of the same length. | |
3150 | Return the destination vector if it changed or nil otherwise. */) | |
3e0b94e7 DC |
3151 | (Lisp_Object a, Lisp_Object b, Lisp_Object c) |
3152 | { | |
3153 | return bool_vector_binop_driver (a, b, c, bool_vector_set_difference); | |
3154 | } | |
3155 | ||
3156 | DEFUN ("bool-vector-subsetp", Fbool_vector_subsetp, | |
3157 | Sbool_vector_subsetp, 2, 2, 0, | |
3f73284a PE |
3158 | doc: /* Return t if every t value in A is also t in B, nil otherwise. |
3159 | A and B must be bool vectors of the same length. */) | |
3e0b94e7 DC |
3160 | (Lisp_Object a, Lisp_Object b) |
3161 | { | |
3f73284a | 3162 | return bool_vector_binop_driver (a, b, b, bool_vector_subsetp); |
3e0b94e7 DC |
3163 | } |
3164 | ||
3165 | DEFUN ("bool-vector-not", Fbool_vector_not, | |
3166 | Sbool_vector_not, 1, 2, 0, | |
454e2fb9 PE |
3167 | doc: /* Compute ~A, set complement. |
3168 | If optional second argument B is given, store result into B. | |
3169 | A and B must be bool vectors of the same length. | |
3e0b94e7 DC |
3170 | Return the destination vector. */) |
3171 | (Lisp_Object a, Lisp_Object b) | |
3172 | { | |
3173 | EMACS_INT nr_bits; | |
87c4314d | 3174 | bits_word *bdata, *adata; |
3e0b94e7 | 3175 | ptrdiff_t i; |
3e0b94e7 DC |
3176 | |
3177 | CHECK_BOOL_VECTOR (a); | |
1c0a7493 | 3178 | nr_bits = bool_vector_size (a); |
3e0b94e7 DC |
3179 | |
3180 | if (NILP (b)) | |
2cf00efc | 3181 | b = make_uninit_bool_vector (nr_bits); |
3e0b94e7 DC |
3182 | else |
3183 | { | |
3184 | CHECK_BOOL_VECTOR (b); | |
454e2fb9 PE |
3185 | if (bool_vector_size (b) != nr_bits) |
3186 | wrong_length_argument (a, b, Qnil); | |
3e0b94e7 DC |
3187 | } |
3188 | ||
df5b4930 PE |
3189 | bdata = bool_vector_data (b); |
3190 | adata = bool_vector_data (a); | |
3e0b94e7 | 3191 | |
87c4314d | 3192 | for (i = 0; i < nr_bits / BITS_PER_BITS_WORD; i++) |
df5b4930 | 3193 | bdata[i] = BITS_WORD_MAX & ~adata[i]; |
3e0b94e7 | 3194 | |
87c4314d | 3195 | if (nr_bits % BITS_PER_BITS_WORD) |
3e0b94e7 | 3196 | { |
df5b4930 | 3197 | bits_word mword = bits_word_to_host_endian (adata[i]); |
3e0b94e7 DC |
3198 | mword = ~mword; |
3199 | mword &= bool_vector_spare_mask (nr_bits); | |
87c4314d | 3200 | bdata[i] = bits_word_to_host_endian (mword); |
3e0b94e7 DC |
3201 | } |
3202 | ||
3203 | return b; | |
3204 | } | |
3205 | ||
ec2c4ee6 PE |
3206 | DEFUN ("bool-vector-count-population", Fbool_vector_count_population, |
3207 | Sbool_vector_count_population, 1, 1, 0, | |
3208 | doc: /* Count how many elements in A are t. | |
3209 | A is a bool vector. To count A's nil elements, subtract the return | |
3210 | value from A's length. */) | |
3211 | (Lisp_Object a) | |
3e0b94e7 | 3212 | { |
f2752e01 | 3213 | EMACS_INT count; |
3e0b94e7 | 3214 | EMACS_INT nr_bits; |
87c4314d | 3215 | bits_word *adata; |
2cf00efc | 3216 | ptrdiff_t i, nwords; |
3e0b94e7 DC |
3217 | |
3218 | CHECK_BOOL_VECTOR (a); | |
3219 | ||
1c0a7493 | 3220 | nr_bits = bool_vector_size (a); |
2cf00efc | 3221 | nwords = bool_vector_words (nr_bits); |
3e0b94e7 | 3222 | count = 0; |
df5b4930 | 3223 | adata = bool_vector_data (a); |
3e0b94e7 | 3224 | |
2cf00efc PE |
3225 | for (i = 0; i < nwords; i++) |
3226 | count += count_one_bits_word (adata[i]); | |
3e0b94e7 DC |
3227 | |
3228 | return make_number (count); | |
3229 | } | |
3230 | ||
ec2c4ee6 PE |
3231 | DEFUN ("bool-vector-count-consecutive", Fbool_vector_count_consecutive, |
3232 | Sbool_vector_count_consecutive, 3, 3, 0, | |
3233 | doc: /* Count how many consecutive elements in A equal B starting at I. | |
3234 | A is a bool vector, B is t or nil, and I is an index into A. */) | |
3e0b94e7 DC |
3235 | (Lisp_Object a, Lisp_Object b, Lisp_Object i) |
3236 | { | |
f2752e01 | 3237 | EMACS_INT count; |
3e0b94e7 | 3238 | EMACS_INT nr_bits; |
f2752e01 | 3239 | int offset; |
87c4314d PE |
3240 | bits_word *adata; |
3241 | bits_word twiddle; | |
3242 | bits_word mword; /* Machine word. */ | |
2cf00efc | 3243 | ptrdiff_t pos, pos0; |
3e0b94e7 DC |
3244 | ptrdiff_t nr_words; |
3245 | ||
3246 | CHECK_BOOL_VECTOR (a); | |
3247 | CHECK_NATNUM (i); | |
3248 | ||
1c0a7493 | 3249 | nr_bits = bool_vector_size (a); |
3e0b94e7 DC |
3250 | if (XFASTINT (i) > nr_bits) /* Allow one past the end for convenience */ |
3251 | args_out_of_range (a, i); | |
3252 | ||
df5b4930 PE |
3253 | adata = bool_vector_data (a); |
3254 | nr_words = bool_vector_words (nr_bits); | |
87c4314d PE |
3255 | pos = XFASTINT (i) / BITS_PER_BITS_WORD; |
3256 | offset = XFASTINT (i) % BITS_PER_BITS_WORD; | |
3e0b94e7 DC |
3257 | count = 0; |
3258 | ||
3259 | /* By XORing with twiddle, we transform the problem of "count | |
3260 | consecutive equal values" into "count the zero bits". The latter | |
3261 | operation usually has hardware support. */ | |
df5b4930 | 3262 | twiddle = NILP (b) ? 0 : BITS_WORD_MAX; |
3e0b94e7 DC |
3263 | |
3264 | /* Scan the remainder of the mword at the current offset. */ | |
3265 | if (pos < nr_words && offset != 0) | |
3266 | { | |
87c4314d | 3267 | mword = bits_word_to_host_endian (adata[pos]); |
3e0b94e7 DC |
3268 | mword ^= twiddle; |
3269 | mword >>= offset; | |
87d86601 PE |
3270 | |
3271 | /* Do not count the pad bits. */ | |
2cf00efc | 3272 | mword |= (bits_word) 1 << (BITS_PER_BITS_WORD - offset); |
87d86601 | 3273 | |
3e0b94e7 | 3274 | count = count_trailing_zero_bits (mword); |
7be68de5 | 3275 | pos++; |
87c4314d | 3276 | if (count + offset < BITS_PER_BITS_WORD) |
3e0b94e7 DC |
3277 | return make_number (count); |
3278 | } | |
3279 | ||
3280 | /* Scan whole words until we either reach the end of the vector or | |
3281 | find an mword that doesn't completely match. twiddle is | |
3282 | endian-independent. */ | |
2cf00efc | 3283 | pos0 = pos; |
3e0b94e7 | 3284 | while (pos < nr_words && adata[pos] == twiddle) |
2cf00efc PE |
3285 | pos++; |
3286 | count += (pos - pos0) * BITS_PER_BITS_WORD; | |
3e0b94e7 DC |
3287 | |
3288 | if (pos < nr_words) | |
3289 | { | |
3290 | /* If we stopped because of a mismatch, see how many bits match | |
3291 | in the current mword. */ | |
87c4314d | 3292 | mword = bits_word_to_host_endian (adata[pos]); |
3e0b94e7 DC |
3293 | mword ^= twiddle; |
3294 | count += count_trailing_zero_bits (mword); | |
3295 | } | |
87c4314d | 3296 | else if (nr_bits % BITS_PER_BITS_WORD != 0) |
3e0b94e7 DC |
3297 | { |
3298 | /* If we hit the end, we might have overshot our count. Reduce | |
3299 | the total by the number of spare bits at the end of the | |
3300 | vector. */ | |
87c4314d | 3301 | count -= BITS_PER_BITS_WORD - nr_bits % BITS_PER_BITS_WORD; |
3e0b94e7 DC |
3302 | } |
3303 | ||
3304 | return make_number (count); | |
3305 | } | |
6b61353c | 3306 | |
7921925c | 3307 | \f |
d1c3da7b BT |
3308 | DEFUN ("bind-symbol", Fbind_symbol, Sbind_symbol, 3, 3, 0, |
3309 | doc: /* Bind symbol. */) | |
3310 | (Lisp_Object symbol, Lisp_Object value, Lisp_Object thunk) | |
3311 | { | |
3312 | Lisp_Object val; | |
3313 | dynwind_begin (); | |
3314 | specbind (symbol, value); | |
3315 | val = call0 (thunk); | |
3316 | dynwind_end (); | |
3317 | return val; | |
3318 | } | |
3319 | \f | |
7921925c | 3320 | void |
971de7fb | 3321 | syms_of_data (void) |
7921925c | 3322 | { |
6315e761 RS |
3323 | Lisp_Object error_tail, arith_tail; |
3324 | ||
62947569 BT |
3325 | /* Used by defsubr. */ |
3326 | DEFSYM (Qspecial_operator, "special-operator"); | |
3327 | DEFSYM (Qinteractive_form, "interactive-form"); | |
3328 | ||
fe6aa7a1 BT |
3329 | #include "data.x" |
3330 | ||
620c53a6 SM |
3331 | DEFSYM (Qquote, "quote"); |
3332 | DEFSYM (Qlambda, "lambda"); | |
3333 | DEFSYM (Qsubr, "subr"); | |
3334 | DEFSYM (Qerror_conditions, "error-conditions"); | |
3335 | DEFSYM (Qerror_message, "error-message"); | |
3336 | DEFSYM (Qtop_level, "top-level"); | |
3337 | ||
3338 | DEFSYM (Qerror, "error"); | |
71873e2b | 3339 | DEFSYM (Quser_error, "user-error"); |
620c53a6 | 3340 | DEFSYM (Qquit, "quit"); |
454e2fb9 | 3341 | DEFSYM (Qwrong_length_argument, "wrong-length-argument"); |
620c53a6 SM |
3342 | DEFSYM (Qwrong_type_argument, "wrong-type-argument"); |
3343 | DEFSYM (Qargs_out_of_range, "args-out-of-range"); | |
3344 | DEFSYM (Qvoid_function, "void-function"); | |
3345 | DEFSYM (Qcyclic_function_indirection, "cyclic-function-indirection"); | |
3346 | DEFSYM (Qcyclic_variable_indirection, "cyclic-variable-indirection"); | |
3347 | DEFSYM (Qvoid_variable, "void-variable"); | |
3348 | DEFSYM (Qsetting_constant, "setting-constant"); | |
3349 | DEFSYM (Qinvalid_read_syntax, "invalid-read-syntax"); | |
3350 | ||
3351 | DEFSYM (Qinvalid_function, "invalid-function"); | |
3352 | DEFSYM (Qwrong_number_of_arguments, "wrong-number-of-arguments"); | |
3353 | DEFSYM (Qno_catch, "no-catch"); | |
3354 | DEFSYM (Qend_of_file, "end-of-file"); | |
3355 | DEFSYM (Qarith_error, "arith-error"); | |
3356 | DEFSYM (Qbeginning_of_buffer, "beginning-of-buffer"); | |
3357 | DEFSYM (Qend_of_buffer, "end-of-buffer"); | |
3358 | DEFSYM (Qbuffer_read_only, "buffer-read-only"); | |
3359 | DEFSYM (Qtext_read_only, "text-read-only"); | |
3360 | DEFSYM (Qmark_inactive, "mark-inactive"); | |
3361 | ||
3362 | DEFSYM (Qlistp, "listp"); | |
3363 | DEFSYM (Qconsp, "consp"); | |
3364 | DEFSYM (Qsymbolp, "symbolp"); | |
3365 | DEFSYM (Qkeywordp, "keywordp"); | |
3366 | DEFSYM (Qintegerp, "integerp"); | |
3367 | DEFSYM (Qnatnump, "natnump"); | |
3368 | DEFSYM (Qwholenump, "wholenump"); | |
3369 | DEFSYM (Qstringp, "stringp"); | |
3370 | DEFSYM (Qarrayp, "arrayp"); | |
3371 | DEFSYM (Qsequencep, "sequencep"); | |
3372 | DEFSYM (Qbufferp, "bufferp"); | |
3373 | DEFSYM (Qvectorp, "vectorp"); | |
3e0b94e7 | 3374 | DEFSYM (Qbool_vector_p, "bool-vector-p"); |
620c53a6 SM |
3375 | DEFSYM (Qchar_or_string_p, "char-or-string-p"); |
3376 | DEFSYM (Qmarkerp, "markerp"); | |
3377 | DEFSYM (Qbuffer_or_string_p, "buffer-or-string-p"); | |
3378 | DEFSYM (Qinteger_or_marker_p, "integer-or-marker-p"); | |
3379 | DEFSYM (Qboundp, "boundp"); | |
3380 | DEFSYM (Qfboundp, "fboundp"); | |
3381 | ||
3382 | DEFSYM (Qfloatp, "floatp"); | |
3383 | DEFSYM (Qnumberp, "numberp"); | |
3384 | DEFSYM (Qnumber_or_marker_p, "number-or-marker-p"); | |
3385 | ||
3386 | DEFSYM (Qchar_table_p, "char-table-p"); | |
3387 | DEFSYM (Qvector_or_char_table_p, "vector-or-char-table-p"); | |
3388 | ||
3389 | DEFSYM (Qsubrp, "subrp"); | |
3390 | DEFSYM (Qunevalled, "unevalled"); | |
3391 | DEFSYM (Qmany, "many"); | |
3392 | ||
3393 | DEFSYM (Qcdr, "cdr"); | |
3394 | ||
3395 | /* Handle automatic advice activation. */ | |
3396 | DEFSYM (Qad_advice_info, "ad-advice-info"); | |
3397 | DEFSYM (Qad_activate_internal, "ad-activate-internal"); | |
f845f2c9 | 3398 | |
d67b4f80 | 3399 | error_tail = pure_cons (Qerror, Qnil); |
6315e761 | 3400 | |
620c53a6 SM |
3401 | /* ERROR is used as a signaler for random errors for which nothing else is |
3402 | right. */ | |
7921925c JB |
3403 | |
3404 | Fput (Qerror, Qerror_conditions, | |
6315e761 | 3405 | error_tail); |
7921925c | 3406 | Fput (Qerror, Qerror_message, |
2a0213a6 | 3407 | build_pure_c_string ("error")); |
7921925c | 3408 | |
71873e2b SM |
3409 | #define PUT_ERROR(sym, tail, msg) \ |
3410 | Fput (sym, Qerror_conditions, pure_cons (sym, tail)); \ | |
2a0213a6 | 3411 | Fput (sym, Qerror_message, build_pure_c_string (msg)) |
71873e2b SM |
3412 | |
3413 | PUT_ERROR (Qquit, Qnil, "Quit"); | |
3414 | ||
3415 | PUT_ERROR (Quser_error, error_tail, ""); | |
454e2fb9 | 3416 | PUT_ERROR (Qwrong_length_argument, error_tail, "Wrong length argument"); |
71873e2b SM |
3417 | PUT_ERROR (Qwrong_type_argument, error_tail, "Wrong type argument"); |
3418 | PUT_ERROR (Qargs_out_of_range, error_tail, "Args out of range"); | |
3419 | PUT_ERROR (Qvoid_function, error_tail, | |
3420 | "Symbol's function definition is void"); | |
3421 | PUT_ERROR (Qcyclic_function_indirection, error_tail, | |
3422 | "Symbol's chain of function indirections contains a loop"); | |
3423 | PUT_ERROR (Qcyclic_variable_indirection, error_tail, | |
3424 | "Symbol's chain of variable indirections contains a loop"); | |
620c53a6 | 3425 | DEFSYM (Qcircular_list, "circular-list"); |
71873e2b SM |
3426 | PUT_ERROR (Qcircular_list, error_tail, "List contains a loop"); |
3427 | PUT_ERROR (Qvoid_variable, error_tail, "Symbol's value as variable is void"); | |
3428 | PUT_ERROR (Qsetting_constant, error_tail, | |
3429 | "Attempt to set a constant symbol"); | |
3430 | PUT_ERROR (Qinvalid_read_syntax, error_tail, "Invalid read syntax"); | |
3431 | PUT_ERROR (Qinvalid_function, error_tail, "Invalid function"); | |
3432 | PUT_ERROR (Qwrong_number_of_arguments, error_tail, | |
3433 | "Wrong number of arguments"); | |
3434 | PUT_ERROR (Qno_catch, error_tail, "No catch for tag"); | |
3435 | PUT_ERROR (Qend_of_file, error_tail, "End of file during parsing"); | |
7921925c | 3436 | |
d67b4f80 | 3437 | arith_tail = pure_cons (Qarith_error, error_tail); |
71873e2b | 3438 | Fput (Qarith_error, Qerror_conditions, arith_tail); |
2a0213a6 | 3439 | Fput (Qarith_error, Qerror_message, build_pure_c_string ("Arithmetic error")); |
71873e2b SM |
3440 | |
3441 | PUT_ERROR (Qbeginning_of_buffer, error_tail, "Beginning of buffer"); | |
3442 | PUT_ERROR (Qend_of_buffer, error_tail, "End of buffer"); | |
3443 | PUT_ERROR (Qbuffer_read_only, error_tail, "Buffer is read-only"); | |
3444 | PUT_ERROR (Qtext_read_only, pure_cons (Qbuffer_read_only, error_tail), | |
3445 | "Text is read-only"); | |
8f9f49d7 | 3446 | |
620c53a6 SM |
3447 | DEFSYM (Qrange_error, "range-error"); |
3448 | DEFSYM (Qdomain_error, "domain-error"); | |
3449 | DEFSYM (Qsingularity_error, "singularity-error"); | |
3450 | DEFSYM (Qoverflow_error, "overflow-error"); | |
3451 | DEFSYM (Qunderflow_error, "underflow-error"); | |
6315e761 | 3452 | |
71873e2b SM |
3453 | PUT_ERROR (Qdomain_error, arith_tail, "Arithmetic domain error"); |
3454 | ||
3455 | PUT_ERROR (Qrange_error, arith_tail, "Arithmetic range error"); | |
3456 | ||
3457 | PUT_ERROR (Qsingularity_error, Fcons (Qdomain_error, arith_tail), | |
3458 | "Arithmetic singularity error"); | |
3459 | ||
3460 | PUT_ERROR (Qoverflow_error, Fcons (Qdomain_error, arith_tail), | |
3461 | "Arithmetic overflow error"); | |
3462 | PUT_ERROR (Qunderflow_error, Fcons (Qdomain_error, arith_tail), | |
3463 | "Arithmetic underflow error"); | |
6315e761 | 3464 | |
7921925c JB |
3465 | staticpro (&Qnil); |
3466 | staticpro (&Qt); | |
7921925c | 3467 | staticpro (&Qunbound); |
7921925c | 3468 | |
39bcc759 | 3469 | /* Types that type-of returns. */ |
620c53a6 SM |
3470 | DEFSYM (Qinteger, "integer"); |
3471 | DEFSYM (Qsymbol, "symbol"); | |
3472 | DEFSYM (Qstring, "string"); | |
3473 | DEFSYM (Qcons, "cons"); | |
3474 | DEFSYM (Qmarker, "marker"); | |
3475 | DEFSYM (Qoverlay, "overlay"); | |
3476 | DEFSYM (Qfloat, "float"); | |
3477 | DEFSYM (Qwindow_configuration, "window-configuration"); | |
3478 | DEFSYM (Qprocess, "process"); | |
3479 | DEFSYM (Qwindow, "window"); | |
620c53a6 SM |
3480 | DEFSYM (Qcompiled_function, "compiled-function"); |
3481 | DEFSYM (Qbuffer, "buffer"); | |
3482 | DEFSYM (Qframe, "frame"); | |
3483 | DEFSYM (Qvector, "vector"); | |
3484 | DEFSYM (Qchar_table, "char-table"); | |
3485 | DEFSYM (Qbool_vector, "bool-vector"); | |
3486 | DEFSYM (Qhash_table, "hash-table"); | |
3ab6e069 | 3487 | DEFSYM (Qmisc, "misc"); |
39bcc759 | 3488 | |
61b108cc SM |
3489 | DEFSYM (Qdefun, "defun"); |
3490 | ||
4e6f2626 CY |
3491 | DEFSYM (Qfont_spec, "font-spec"); |
3492 | DEFSYM (Qfont_entity, "font-entity"); | |
3493 | DEFSYM (Qfont_object, "font-object"); | |
3494 | ||
32e5c58c | 3495 | DEFSYM (Qdefalias_fset_function, "defalias-fset-function"); |
3860280a | 3496 | |
1d59fbe3 | 3497 | set_symbol_function (Qwholenump, SYMBOL_FUNCTION (Qnatnump)); |
e6190b11 | 3498 | |
29208e82 | 3499 | DEFVAR_LISP ("most-positive-fixnum", Vmost_positive_fixnum, |
9d113d9d AS |
3500 | doc: /* The largest value that is representable in a Lisp integer. */); |
3501 | Vmost_positive_fixnum = make_number (MOST_POSITIVE_FIXNUM); | |
844e0de1 | 3502 | SET_SYMBOL_CONSTANT (XSYMBOL (intern_c_string ("most-positive-fixnum")), 1); |
bfb96cb7 | 3503 | |
29208e82 | 3504 | DEFVAR_LISP ("most-negative-fixnum", Vmost_negative_fixnum, |
9d113d9d AS |
3505 | doc: /* The smallest value that is representable in a Lisp integer. */); |
3506 | Vmost_negative_fixnum = make_number (MOST_NEGATIVE_FIXNUM); | |
844e0de1 | 3507 | SET_SYMBOL_CONSTANT (XSYMBOL (intern_c_string ("most-negative-fixnum")), 1); |
7921925c | 3508 | } |