Commit | Line | Data |
---|---|---|
7921925c | 1 | /* Primitive operations on Lisp data types for GNU Emacs Lisp interpreter. |
0b5538bd | 2 | Copyright (C) 1985, 1986, 1988, 1993, 1994, 1995, 1997, 1998, 1999, 2000, |
114f9c96 | 3 | 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 |
8cabe764 | 4 | Free Software Foundation, Inc. |
7921925c JB |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
9ec0b715 | 8 | GNU Emacs is free software: you can redistribute it and/or modify |
7921925c | 9 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
10 | the Free Software Foundation, either version 3 of the License, or |
11 | (at your option) any later version. | |
7921925c JB |
12 | |
13 | GNU Emacs is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 19 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
7921925c JB |
20 | |
21 | ||
18160b98 | 22 | #include <config.h> |
68c45bf0 | 23 | #include <signal.h> |
dd8daec5 | 24 | #include <stdio.h> |
d7306fe6 | 25 | #include <setjmp.h> |
7921925c | 26 | #include "lisp.h" |
29eab336 | 27 | #include "puresize.h" |
e6e1f521 | 28 | #include "character.h" |
7921925c | 29 | #include "buffer.h" |
077d751f | 30 | #include "keyboard.h" |
b0c2d1c6 | 31 | #include "frame.h" |
a44804c2 | 32 | #include "syssignal.h" |
256c9c3a | 33 | #include "termhooks.h" /* For FRAME_KBOARD reference in y-or-n-p. */ |
4e6f2626 | 34 | #include "font.h" |
fb8e9847 | 35 | |
93b91208 | 36 | #ifdef STDC_HEADERS |
2f261542 | 37 | #include <float.h> |
93b91208 | 38 | #endif |
defa77b5 | 39 | |
ad8d56b9 PE |
40 | /* If IEEE_FLOATING_POINT isn't defined, default it from FLT_*. */ |
41 | #ifndef IEEE_FLOATING_POINT | |
42 | #if (FLT_RADIX == 2 && FLT_MANT_DIG == 24 \ | |
43 | && FLT_MIN_EXP == -125 && FLT_MAX_EXP == 128) | |
44 | #define IEEE_FLOATING_POINT 1 | |
45 | #else | |
46 | #define IEEE_FLOATING_POINT 0 | |
47 | #endif | |
48 | #endif | |
49 | ||
7921925c | 50 | #include <math.h> |
7921925c | 51 | |
024ec58f | 52 | #if !defined (atof) |
971de7fb | 53 | extern double atof (const char *); |
024ec58f BF |
54 | #endif /* !atof */ |
55 | ||
7921925c JB |
56 | Lisp_Object Qnil, Qt, Qquote, Qlambda, Qsubr, Qunbound; |
57 | Lisp_Object Qerror_conditions, Qerror_message, Qtop_level; | |
58 | Lisp_Object Qerror, Qquit, Qwrong_type_argument, Qargs_out_of_range; | |
ffd56f97 | 59 | Lisp_Object Qvoid_variable, Qvoid_function, Qcyclic_function_indirection; |
13d95cc0 | 60 | Lisp_Object Qcyclic_variable_indirection, Qcircular_list; |
7921925c JB |
61 | Lisp_Object Qsetting_constant, Qinvalid_read_syntax; |
62 | Lisp_Object Qinvalid_function, Qwrong_number_of_arguments, Qno_catch; | |
3b8819d6 | 63 | Lisp_Object Qend_of_file, Qarith_error, Qmark_inactive; |
7921925c | 64 | Lisp_Object Qbeginning_of_buffer, Qend_of_buffer, Qbuffer_read_only; |
8f9f49d7 | 65 | Lisp_Object Qtext_read_only; |
6b61353c | 66 | |
8e86942b | 67 | Lisp_Object Qintegerp, Qnatnump, Qwholenump, Qsymbolp, Qlistp, Qconsp; |
7921925c JB |
68 | Lisp_Object Qstringp, Qarrayp, Qsequencep, Qbufferp; |
69 | Lisp_Object Qchar_or_string_p, Qmarkerp, Qinteger_or_marker_p, Qvectorp; | |
cda9b832 | 70 | Lisp_Object Qbuffer_or_string_p, Qkeywordp; |
7921925c | 71 | Lisp_Object Qboundp, Qfboundp; |
7f0edce7 | 72 | Lisp_Object Qchar_table_p, Qvector_or_char_table_p; |
39bcc759 | 73 | |
7921925c | 74 | Lisp_Object Qcdr; |
c1307a23 | 75 | Lisp_Object Qad_advice_info, Qad_activate_internal; |
7921925c | 76 | |
6315e761 RS |
77 | Lisp_Object Qrange_error, Qdomain_error, Qsingularity_error; |
78 | Lisp_Object Qoverflow_error, Qunderflow_error; | |
79 | ||
464f8898 | 80 | Lisp_Object Qfloatp; |
7921925c | 81 | Lisp_Object Qnumberp, Qnumber_or_marker_p; |
7921925c | 82 | |
6b61353c KH |
83 | Lisp_Object Qinteger; |
84 | static Lisp_Object Qsymbol, Qstring, Qcons, Qmarker, Qoverlay; | |
8313c4e7 KH |
85 | static Lisp_Object Qfloat, Qwindow_configuration, Qwindow; |
86 | Lisp_Object Qprocess; | |
39bcc759 | 87 | static Lisp_Object Qcompiled_function, Qbuffer, Qframe, Qvector; |
81dc5de5 | 88 | static Lisp_Object Qchar_table, Qbool_vector, Qhash_table; |
6f0e897f | 89 | static Lisp_Object Qsubrp, Qmany, Qunevalled; |
4e6f2626 | 90 | Lisp_Object Qfont_spec, Qfont_entity, Qfont_object; |
39bcc759 | 91 | |
3860280a CY |
92 | Lisp_Object Qinteractive_form; |
93 | ||
ce5b453a | 94 | static void swap_in_symval_forwarding (struct Lisp_Symbol *, struct Lisp_Buffer_Local_Value *); |
d02eeab3 | 95 | |
9d113d9d | 96 | Lisp_Object Vmost_positive_fixnum, Vmost_negative_fixnum; |
e6190b11 | 97 | |
13d95cc0 GM |
98 | |
99 | void | |
971de7fb | 100 | circular_list_error (Lisp_Object list) |
13d95cc0 | 101 | { |
740ef0b5 | 102 | xsignal (Qcircular_list, list); |
13d95cc0 GM |
103 | } |
104 | ||
105 | ||
7921925c | 106 | Lisp_Object |
971de7fb | 107 | wrong_type_argument (register Lisp_Object predicate, register Lisp_Object value) |
7921925c | 108 | { |
2de9f71c SM |
109 | /* If VALUE is not even a valid Lisp object, we'd want to abort here |
110 | where we can get a backtrace showing where it came from. We used | |
111 | to try and do that by checking the tagbits, but nowadays all | |
112 | tagbits are potentially valid. */ | |
113 | /* if ((unsigned int) XTYPE (value) >= Lisp_Type_Limit) | |
114 | * abort (); */ | |
e1351ff7 | 115 | |
740ef0b5 | 116 | xsignal2 (Qwrong_type_argument, predicate, value); |
7921925c JB |
117 | } |
118 | ||
dfcf069d | 119 | void |
971de7fb | 120 | pure_write_error (void) |
7921925c JB |
121 | { |
122 | error ("Attempt to modify read-only object"); | |
123 | } | |
124 | ||
125 | void | |
971de7fb | 126 | args_out_of_range (Lisp_Object a1, Lisp_Object a2) |
7921925c | 127 | { |
740ef0b5 | 128 | xsignal2 (Qargs_out_of_range, a1, a2); |
7921925c JB |
129 | } |
130 | ||
131 | void | |
971de7fb | 132 | args_out_of_range_3 (Lisp_Object a1, Lisp_Object a2, Lisp_Object a3) |
7921925c | 133 | { |
740ef0b5 | 134 | xsignal3 (Qargs_out_of_range, a1, a2, a3); |
7921925c JB |
135 | } |
136 | ||
7921925c JB |
137 | /* On some machines, XINT needs a temporary location. |
138 | Here it is, in case it is needed. */ | |
139 | ||
140 | int sign_extend_temp; | |
141 | ||
142 | /* On a few machines, XINT can only be done by calling this. */ | |
143 | ||
144 | int | |
971de7fb | 145 | sign_extend_lisp_int (EMACS_INT num) |
7921925c | 146 | { |
a0ed95ea RS |
147 | if (num & (((EMACS_INT) 1) << (VALBITS - 1))) |
148 | return num | (((EMACS_INT) (-1)) << VALBITS); | |
7921925c | 149 | else |
a0ed95ea | 150 | return num & ((((EMACS_INT) 1) << VALBITS) - 1); |
7921925c JB |
151 | } |
152 | \f | |
153 | /* Data type predicates */ | |
154 | ||
155 | DEFUN ("eq", Feq, Seq, 2, 2, 0, | |
8c1a1077 PJ |
156 | doc: /* Return t if the two args are the same Lisp object. */) |
157 | (obj1, obj2) | |
7921925c JB |
158 | Lisp_Object obj1, obj2; |
159 | { | |
160 | if (EQ (obj1, obj2)) | |
161 | return Qt; | |
162 | return Qnil; | |
163 | } | |
164 | ||
8c1a1077 PJ |
165 | DEFUN ("null", Fnull, Snull, 1, 1, 0, |
166 | doc: /* Return t if OBJECT is nil. */) | |
167 | (object) | |
39bcc759 | 168 | Lisp_Object object; |
7921925c | 169 | { |
39bcc759 | 170 | if (NILP (object)) |
7921925c JB |
171 | return Qt; |
172 | return Qnil; | |
173 | } | |
174 | ||
39bcc759 | 175 | DEFUN ("type-of", Ftype_of, Stype_of, 1, 1, 0, |
8c1a1077 PJ |
176 | doc: /* Return a symbol representing the type of OBJECT. |
177 | The symbol returned names the object's basic type; | |
178 | for example, (type-of 1) returns `integer'. */) | |
179 | (object) | |
39bcc759 RS |
180 | Lisp_Object object; |
181 | { | |
8e50cc2d | 182 | switch (XTYPE (object)) |
39bcc759 | 183 | { |
2de9f71c | 184 | case_Lisp_Int: |
39bcc759 RS |
185 | return Qinteger; |
186 | ||
187 | case Lisp_Symbol: | |
188 | return Qsymbol; | |
189 | ||
190 | case Lisp_String: | |
191 | return Qstring; | |
192 | ||
193 | case Lisp_Cons: | |
194 | return Qcons; | |
195 | ||
196 | case Lisp_Misc: | |
324a6eef | 197 | switch (XMISCTYPE (object)) |
39bcc759 RS |
198 | { |
199 | case Lisp_Misc_Marker: | |
200 | return Qmarker; | |
201 | case Lisp_Misc_Overlay: | |
202 | return Qoverlay; | |
203 | case Lisp_Misc_Float: | |
204 | return Qfloat; | |
205 | } | |
206 | abort (); | |
207 | ||
208 | case Lisp_Vectorlike: | |
8e50cc2d | 209 | if (WINDOW_CONFIGURATIONP (object)) |
39bcc759 | 210 | return Qwindow_configuration; |
8e50cc2d | 211 | if (PROCESSP (object)) |
39bcc759 | 212 | return Qprocess; |
8e50cc2d | 213 | if (WINDOWP (object)) |
39bcc759 | 214 | return Qwindow; |
8e50cc2d | 215 | if (SUBRP (object)) |
39bcc759 | 216 | return Qsubr; |
8e50cc2d | 217 | if (COMPILEDP (object)) |
39bcc759 | 218 | return Qcompiled_function; |
8e50cc2d | 219 | if (BUFFERP (object)) |
39bcc759 | 220 | return Qbuffer; |
8e50cc2d | 221 | if (CHAR_TABLE_P (object)) |
fc67d5be | 222 | return Qchar_table; |
8e50cc2d | 223 | if (BOOL_VECTOR_P (object)) |
fc67d5be | 224 | return Qbool_vector; |
8e50cc2d | 225 | if (FRAMEP (object)) |
39bcc759 | 226 | return Qframe; |
8e50cc2d | 227 | if (HASH_TABLE_P (object)) |
81dc5de5 | 228 | return Qhash_table; |
4e6f2626 CY |
229 | if (FONT_SPEC_P (object)) |
230 | return Qfont_spec; | |
231 | if (FONT_ENTITY_P (object)) | |
232 | return Qfont_entity; | |
233 | if (FONT_OBJECT_P (object)) | |
234 | return Qfont_object; | |
39bcc759 RS |
235 | return Qvector; |
236 | ||
39bcc759 RS |
237 | case Lisp_Float: |
238 | return Qfloat; | |
39bcc759 RS |
239 | |
240 | default: | |
241 | abort (); | |
242 | } | |
243 | } | |
244 | ||
8c1a1077 PJ |
245 | DEFUN ("consp", Fconsp, Sconsp, 1, 1, 0, |
246 | doc: /* Return t if OBJECT is a cons cell. */) | |
247 | (object) | |
39bcc759 | 248 | Lisp_Object object; |
7921925c | 249 | { |
39bcc759 | 250 | if (CONSP (object)) |
7921925c JB |
251 | return Qt; |
252 | return Qnil; | |
253 | } | |
254 | ||
25638b07 | 255 | DEFUN ("atom", Fatom, Satom, 1, 1, 0, |
8c1a1077 PJ |
256 | doc: /* Return t if OBJECT is not a cons cell. This includes nil. */) |
257 | (object) | |
39bcc759 | 258 | Lisp_Object object; |
7921925c | 259 | { |
39bcc759 | 260 | if (CONSP (object)) |
7921925c JB |
261 | return Qnil; |
262 | return Qt; | |
263 | } | |
264 | ||
25638b07 | 265 | DEFUN ("listp", Flistp, Slistp, 1, 1, 0, |
4cdcdcc9 LT |
266 | doc: /* Return t if OBJECT is a list, that is, a cons cell or nil. |
267 | Otherwise, return nil. */) | |
8c1a1077 | 268 | (object) |
39bcc759 | 269 | Lisp_Object object; |
7921925c | 270 | { |
39bcc759 | 271 | if (CONSP (object) || NILP (object)) |
7921925c JB |
272 | return Qt; |
273 | return Qnil; | |
274 | } | |
275 | ||
25638b07 | 276 | DEFUN ("nlistp", Fnlistp, Snlistp, 1, 1, 0, |
8c1a1077 PJ |
277 | doc: /* Return t if OBJECT is not a list. Lists include nil. */) |
278 | (object) | |
39bcc759 | 279 | Lisp_Object object; |
7921925c | 280 | { |
39bcc759 | 281 | if (CONSP (object) || NILP (object)) |
7921925c JB |
282 | return Qnil; |
283 | return Qt; | |
284 | } | |
285 | \f | |
25638b07 | 286 | DEFUN ("symbolp", Fsymbolp, Ssymbolp, 1, 1, 0, |
8c1a1077 PJ |
287 | doc: /* Return t if OBJECT is a symbol. */) |
288 | (object) | |
39bcc759 | 289 | Lisp_Object object; |
7921925c | 290 | { |
39bcc759 | 291 | if (SYMBOLP (object)) |
7921925c JB |
292 | return Qt; |
293 | return Qnil; | |
294 | } | |
295 | ||
cda9b832 DL |
296 | /* Define this in C to avoid unnecessarily consing up the symbol |
297 | name. */ | |
298 | DEFUN ("keywordp", Fkeywordp, Skeywordp, 1, 1, 0, | |
8c1a1077 PJ |
299 | doc: /* Return t if OBJECT is a keyword. |
300 | This means that it is a symbol with a print name beginning with `:' | |
301 | interned in the initial obarray. */) | |
302 | (object) | |
cda9b832 DL |
303 | Lisp_Object object; |
304 | { | |
305 | if (SYMBOLP (object) | |
d5db4077 | 306 | && SREF (SYMBOL_NAME (object), 0) == ':' |
f35d5bad | 307 | && SYMBOL_INTERNED_IN_INITIAL_OBARRAY_P (object)) |
cda9b832 DL |
308 | return Qt; |
309 | return Qnil; | |
310 | } | |
311 | ||
25638b07 | 312 | DEFUN ("vectorp", Fvectorp, Svectorp, 1, 1, 0, |
8c1a1077 PJ |
313 | doc: /* Return t if OBJECT is a vector. */) |
314 | (object) | |
39bcc759 | 315 | Lisp_Object object; |
7921925c | 316 | { |
39bcc759 | 317 | if (VECTORP (object)) |
7921925c JB |
318 | return Qt; |
319 | return Qnil; | |
320 | } | |
321 | ||
25638b07 | 322 | DEFUN ("stringp", Fstringp, Sstringp, 1, 1, 0, |
8c1a1077 PJ |
323 | doc: /* Return t if OBJECT is a string. */) |
324 | (object) | |
39bcc759 | 325 | Lisp_Object object; |
7921925c | 326 | { |
39bcc759 | 327 | if (STRINGP (object)) |
7921925c JB |
328 | return Qt; |
329 | return Qnil; | |
330 | } | |
331 | ||
25638b07 | 332 | DEFUN ("multibyte-string-p", Fmultibyte_string_p, Smultibyte_string_p, |
8c1a1077 PJ |
333 | 1, 1, 0, |
334 | doc: /* Return t if OBJECT is a multibyte string. */) | |
335 | (object) | |
25638b07 RS |
336 | Lisp_Object object; |
337 | { | |
338 | if (STRINGP (object) && STRING_MULTIBYTE (object)) | |
339 | return Qt; | |
340 | return Qnil; | |
341 | } | |
342 | ||
343 | DEFUN ("char-table-p", Fchar_table_p, Schar_table_p, 1, 1, 0, | |
8c1a1077 PJ |
344 | doc: /* Return t if OBJECT is a char-table. */) |
345 | (object) | |
4d276982 RS |
346 | Lisp_Object object; |
347 | { | |
348 | if (CHAR_TABLE_P (object)) | |
349 | return Qt; | |
350 | return Qnil; | |
351 | } | |
352 | ||
7f0edce7 RS |
353 | DEFUN ("vector-or-char-table-p", Fvector_or_char_table_p, |
354 | Svector_or_char_table_p, 1, 1, 0, | |
8c1a1077 PJ |
355 | doc: /* Return t if OBJECT is a char-table or vector. */) |
356 | (object) | |
7f0edce7 RS |
357 | Lisp_Object object; |
358 | { | |
359 | if (VECTORP (object) || CHAR_TABLE_P (object)) | |
360 | return Qt; | |
361 | return Qnil; | |
362 | } | |
363 | ||
8c1a1077 PJ |
364 | DEFUN ("bool-vector-p", Fbool_vector_p, Sbool_vector_p, 1, 1, 0, |
365 | doc: /* Return t if OBJECT is a bool-vector. */) | |
366 | (object) | |
4d276982 RS |
367 | Lisp_Object object; |
368 | { | |
369 | if (BOOL_VECTOR_P (object)) | |
370 | return Qt; | |
371 | return Qnil; | |
372 | } | |
373 | ||
8c1a1077 PJ |
374 | DEFUN ("arrayp", Farrayp, Sarrayp, 1, 1, 0, |
375 | doc: /* Return t if OBJECT is an array (string or vector). */) | |
376 | (object) | |
39bcc759 | 377 | Lisp_Object object; |
7921925c | 378 | { |
0c64a8cd | 379 | if (ARRAYP (object)) |
7921925c JB |
380 | return Qt; |
381 | return Qnil; | |
382 | } | |
383 | ||
384 | DEFUN ("sequencep", Fsequencep, Ssequencep, 1, 1, 0, | |
8c1a1077 PJ |
385 | doc: /* Return t if OBJECT is a sequence (list or array). */) |
386 | (object) | |
39bcc759 | 387 | register Lisp_Object object; |
7921925c | 388 | { |
0c64a8cd | 389 | if (CONSP (object) || NILP (object) || ARRAYP (object)) |
7921925c JB |
390 | return Qt; |
391 | return Qnil; | |
392 | } | |
393 | ||
8c1a1077 PJ |
394 | DEFUN ("bufferp", Fbufferp, Sbufferp, 1, 1, 0, |
395 | doc: /* Return t if OBJECT is an editor buffer. */) | |
396 | (object) | |
39bcc759 | 397 | Lisp_Object object; |
7921925c | 398 | { |
39bcc759 | 399 | if (BUFFERP (object)) |
7921925c JB |
400 | return Qt; |
401 | return Qnil; | |
402 | } | |
403 | ||
8c1a1077 PJ |
404 | DEFUN ("markerp", Fmarkerp, Smarkerp, 1, 1, 0, |
405 | doc: /* Return t if OBJECT is a marker (editor pointer). */) | |
406 | (object) | |
39bcc759 | 407 | Lisp_Object object; |
7921925c | 408 | { |
39bcc759 | 409 | if (MARKERP (object)) |
7921925c JB |
410 | return Qt; |
411 | return Qnil; | |
412 | } | |
413 | ||
8c1a1077 PJ |
414 | DEFUN ("subrp", Fsubrp, Ssubrp, 1, 1, 0, |
415 | doc: /* Return t if OBJECT is a built-in function. */) | |
416 | (object) | |
39bcc759 | 417 | Lisp_Object object; |
7921925c | 418 | { |
39bcc759 | 419 | if (SUBRP (object)) |
7921925c JB |
420 | return Qt; |
421 | return Qnil; | |
422 | } | |
423 | ||
dbc4e1c1 | 424 | DEFUN ("byte-code-function-p", Fbyte_code_function_p, Sbyte_code_function_p, |
8c1a1077 PJ |
425 | 1, 1, 0, |
426 | doc: /* Return t if OBJECT is a byte-compiled function object. */) | |
427 | (object) | |
39bcc759 | 428 | Lisp_Object object; |
7921925c | 429 | { |
39bcc759 | 430 | if (COMPILEDP (object)) |
7921925c JB |
431 | return Qt; |
432 | return Qnil; | |
433 | } | |
434 | ||
0321d75c | 435 | DEFUN ("char-or-string-p", Fchar_or_string_p, Schar_or_string_p, 1, 1, 0, |
8637f5ee | 436 | doc: /* Return t if OBJECT is a character or a string. */) |
8c1a1077 | 437 | (object) |
39bcc759 | 438 | register Lisp_Object object; |
7921925c | 439 | { |
cfd70f33 | 440 | if (CHARACTERP (object) || STRINGP (object)) |
7921925c JB |
441 | return Qt; |
442 | return Qnil; | |
443 | } | |
444 | \f | |
8c1a1077 PJ |
445 | DEFUN ("integerp", Fintegerp, Sintegerp, 1, 1, 0, |
446 | doc: /* Return t if OBJECT is an integer. */) | |
447 | (object) | |
39bcc759 | 448 | Lisp_Object object; |
7921925c | 449 | { |
39bcc759 | 450 | if (INTEGERP (object)) |
7921925c JB |
451 | return Qt; |
452 | return Qnil; | |
453 | } | |
454 | ||
464f8898 | 455 | DEFUN ("integer-or-marker-p", Finteger_or_marker_p, Sinteger_or_marker_p, 1, 1, 0, |
8c1a1077 PJ |
456 | doc: /* Return t if OBJECT is an integer or a marker (editor pointer). */) |
457 | (object) | |
39bcc759 | 458 | register Lisp_Object object; |
7921925c | 459 | { |
39bcc759 | 460 | if (MARKERP (object) || INTEGERP (object)) |
7921925c JB |
461 | return Qt; |
462 | return Qnil; | |
463 | } | |
464 | ||
0321d75c | 465 | DEFUN ("natnump", Fnatnump, Snatnump, 1, 1, 0, |
8c1a1077 PJ |
466 | doc: /* Return t if OBJECT is a nonnegative integer. */) |
467 | (object) | |
39bcc759 | 468 | Lisp_Object object; |
7921925c | 469 | { |
39bcc759 | 470 | if (NATNUMP (object)) |
7921925c JB |
471 | return Qt; |
472 | return Qnil; | |
473 | } | |
474 | ||
475 | DEFUN ("numberp", Fnumberp, Snumberp, 1, 1, 0, | |
8c1a1077 PJ |
476 | doc: /* Return t if OBJECT is a number (floating point or integer). */) |
477 | (object) | |
39bcc759 | 478 | Lisp_Object object; |
7921925c | 479 | { |
39bcc759 | 480 | if (NUMBERP (object)) |
7921925c | 481 | return Qt; |
dbc4e1c1 JB |
482 | else |
483 | return Qnil; | |
7921925c JB |
484 | } |
485 | ||
486 | DEFUN ("number-or-marker-p", Fnumber_or_marker_p, | |
487 | Snumber_or_marker_p, 1, 1, 0, | |
8c1a1077 PJ |
488 | doc: /* Return t if OBJECT is a number or a marker. */) |
489 | (object) | |
39bcc759 | 490 | Lisp_Object object; |
7921925c | 491 | { |
39bcc759 | 492 | if (NUMBERP (object) || MARKERP (object)) |
7921925c JB |
493 | return Qt; |
494 | return Qnil; | |
495 | } | |
464f8898 | 496 | |
464f8898 | 497 | DEFUN ("floatp", Ffloatp, Sfloatp, 1, 1, 0, |
8c1a1077 PJ |
498 | doc: /* Return t if OBJECT is a floating point number. */) |
499 | (object) | |
39bcc759 | 500 | Lisp_Object object; |
464f8898 | 501 | { |
39bcc759 | 502 | if (FLOATP (object)) |
464f8898 RS |
503 | return Qt; |
504 | return Qnil; | |
505 | } | |
cc94f3b2 | 506 | |
7921925c JB |
507 | \f |
508 | /* Extract and set components of lists */ | |
509 | ||
510 | DEFUN ("car", Fcar, Scar, 1, 1, 0, | |
8c1a1077 | 511 | doc: /* Return the car of LIST. If arg is nil, return nil. |
9701c742 LT |
512 | Error if arg is not nil and not a cons cell. See also `car-safe'. |
513 | ||
da46c5be LT |
514 | See Info node `(elisp)Cons Cells' for a discussion of related basic |
515 | Lisp concepts such as car, cdr, cons cell and list. */) | |
8c1a1077 | 516 | (list) |
7921925c JB |
517 | register Lisp_Object list; |
518 | { | |
0c64a8cd | 519 | return CAR (list); |
7921925c JB |
520 | } |
521 | ||
522 | DEFUN ("car-safe", Fcar_safe, Scar_safe, 1, 1, 0, | |
8c1a1077 PJ |
523 | doc: /* Return the car of OBJECT if it is a cons cell, or else nil. */) |
524 | (object) | |
7921925c JB |
525 | Lisp_Object object; |
526 | { | |
0c64a8cd | 527 | return CAR_SAFE (object); |
7921925c JB |
528 | } |
529 | ||
530 | DEFUN ("cdr", Fcdr, Scdr, 1, 1, 0, | |
8c1a1077 | 531 | doc: /* Return the cdr of LIST. If arg is nil, return nil. |
9701c742 LT |
532 | Error if arg is not nil and not a cons cell. See also `cdr-safe'. |
533 | ||
da46c5be LT |
534 | See Info node `(elisp)Cons Cells' for a discussion of related basic |
535 | Lisp concepts such as cdr, car, cons cell and list. */) | |
8c1a1077 | 536 | (list) |
7921925c JB |
537 | register Lisp_Object list; |
538 | { | |
0c64a8cd | 539 | return CDR (list); |
7921925c JB |
540 | } |
541 | ||
542 | DEFUN ("cdr-safe", Fcdr_safe, Scdr_safe, 1, 1, 0, | |
8c1a1077 PJ |
543 | doc: /* Return the cdr of OBJECT if it is a cons cell, or else nil. */) |
544 | (object) | |
7921925c JB |
545 | Lisp_Object object; |
546 | { | |
0c64a8cd | 547 | return CDR_SAFE (object); |
7921925c JB |
548 | } |
549 | ||
550 | DEFUN ("setcar", Fsetcar, Ssetcar, 2, 2, 0, | |
8c1a1077 PJ |
551 | doc: /* Set the car of CELL to be NEWCAR. Returns NEWCAR. */) |
552 | (cell, newcar) | |
7921925c JB |
553 | register Lisp_Object cell, newcar; |
554 | { | |
0c64a8cd | 555 | CHECK_CONS (cell); |
7921925c | 556 | CHECK_IMPURE (cell); |
f3fbd155 | 557 | XSETCAR (cell, newcar); |
7921925c JB |
558 | return newcar; |
559 | } | |
560 | ||
561 | DEFUN ("setcdr", Fsetcdr, Ssetcdr, 2, 2, 0, | |
8c1a1077 PJ |
562 | doc: /* Set the cdr of CELL to be NEWCDR. Returns NEWCDR. */) |
563 | (cell, newcdr) | |
7921925c JB |
564 | register Lisp_Object cell, newcdr; |
565 | { | |
0c64a8cd | 566 | CHECK_CONS (cell); |
7921925c | 567 | CHECK_IMPURE (cell); |
f3fbd155 | 568 | XSETCDR (cell, newcdr); |
7921925c JB |
569 | return newcdr; |
570 | } | |
571 | \f | |
572 | /* Extract and set components of symbols */ | |
573 | ||
8c1a1077 PJ |
574 | DEFUN ("boundp", Fboundp, Sboundp, 1, 1, 0, |
575 | doc: /* Return t if SYMBOL's value is not void. */) | |
576 | (symbol) | |
d9c2a0f2 | 577 | register Lisp_Object symbol; |
7921925c JB |
578 | { |
579 | Lisp_Object valcontents; | |
ce5b453a | 580 | struct Lisp_Symbol *sym; |
b7826503 | 581 | CHECK_SYMBOL (symbol); |
ce5b453a | 582 | sym = XSYMBOL (symbol); |
7921925c | 583 | |
ce5b453a SM |
584 | start: |
585 | switch (sym->redirect) | |
586 | { | |
587 | case SYMBOL_PLAINVAL: valcontents = SYMBOL_VAL (sym); break; | |
588 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
589 | case SYMBOL_LOCALIZED: | |
590 | { | |
591 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
592 | if (blv->fwd) | |
593 | /* In set_internal, we un-forward vars when their value is | |
594 | set to Qunbound. */ | |
595 | return Qt; | |
596 | else | |
597 | { | |
598 | swap_in_symval_forwarding (sym, blv); | |
599 | valcontents = BLV_VALUE (blv); | |
600 | } | |
601 | break; | |
602 | } | |
603 | case SYMBOL_FORWARDED: | |
604 | /* In set_internal, we un-forward vars when their value is | |
605 | set to Qunbound. */ | |
606 | return Qt; | |
607 | default: abort (); | |
608 | } | |
7921925c | 609 | |
1bfcade3 | 610 | return (EQ (valcontents, Qunbound) ? Qnil : Qt); |
7921925c JB |
611 | } |
612 | ||
8c1a1077 PJ |
613 | DEFUN ("fboundp", Ffboundp, Sfboundp, 1, 1, 0, |
614 | doc: /* Return t if SYMBOL's function definition is not void. */) | |
615 | (symbol) | |
d9c2a0f2 | 616 | register Lisp_Object symbol; |
7921925c | 617 | { |
b7826503 | 618 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 619 | return (EQ (XSYMBOL (symbol)->function, Qunbound) ? Qnil : Qt); |
7921925c JB |
620 | } |
621 | ||
8c1a1077 | 622 | DEFUN ("makunbound", Fmakunbound, Smakunbound, 1, 1, 0, |
bfb96cb7 FP |
623 | doc: /* Make SYMBOL's value be void. |
624 | Return SYMBOL. */) | |
8c1a1077 | 625 | (symbol) |
d9c2a0f2 | 626 | register Lisp_Object symbol; |
7921925c | 627 | { |
b7826503 | 628 | CHECK_SYMBOL (symbol); |
64ec26d6 | 629 | if (SYMBOL_CONSTANT_P (symbol)) |
740ef0b5 | 630 | xsignal1 (Qsetting_constant, symbol); |
d9c2a0f2 EN |
631 | Fset (symbol, Qunbound); |
632 | return symbol; | |
7921925c JB |
633 | } |
634 | ||
8c1a1077 | 635 | DEFUN ("fmakunbound", Ffmakunbound, Sfmakunbound, 1, 1, 0, |
bfb96cb7 FP |
636 | doc: /* Make SYMBOL's function definition be void. |
637 | Return SYMBOL. */) | |
8c1a1077 | 638 | (symbol) |
d9c2a0f2 | 639 | register Lisp_Object symbol; |
7921925c | 640 | { |
b7826503 | 641 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 642 | if (NILP (symbol) || EQ (symbol, Qt)) |
740ef0b5 | 643 | xsignal1 (Qsetting_constant, symbol); |
d9c2a0f2 EN |
644 | XSYMBOL (symbol)->function = Qunbound; |
645 | return symbol; | |
7921925c JB |
646 | } |
647 | ||
648 | DEFUN ("symbol-function", Fsymbol_function, Ssymbol_function, 1, 1, 0, | |
8c1a1077 PJ |
649 | doc: /* Return SYMBOL's function definition. Error if that is void. */) |
650 | (symbol) | |
ffd56f97 | 651 | register Lisp_Object symbol; |
7921925c | 652 | { |
b7826503 | 653 | CHECK_SYMBOL (symbol); |
740ef0b5 KS |
654 | if (!EQ (XSYMBOL (symbol)->function, Qunbound)) |
655 | return XSYMBOL (symbol)->function; | |
656 | xsignal1 (Qvoid_function, symbol); | |
7921925c JB |
657 | } |
658 | ||
8c1a1077 PJ |
659 | DEFUN ("symbol-plist", Fsymbol_plist, Ssymbol_plist, 1, 1, 0, |
660 | doc: /* Return SYMBOL's property list. */) | |
661 | (symbol) | |
d9c2a0f2 | 662 | register Lisp_Object symbol; |
7921925c | 663 | { |
b7826503 | 664 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 665 | return XSYMBOL (symbol)->plist; |
7921925c JB |
666 | } |
667 | ||
8c1a1077 PJ |
668 | DEFUN ("symbol-name", Fsymbol_name, Ssymbol_name, 1, 1, 0, |
669 | doc: /* Return SYMBOL's name, a string. */) | |
670 | (symbol) | |
d9c2a0f2 | 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 | ||
680 | DEFUN ("fset", Ffset, Sfset, 2, 2, 0, | |
8c1a1077 PJ |
681 | doc: /* Set SYMBOL's function definition to DEFINITION, and return DEFINITION. */) |
682 | (symbol, definition) | |
8c0b5540 | 683 | register Lisp_Object symbol, definition; |
d9c2a0f2 | 684 | { |
764ea377 JB |
685 | register Lisp_Object function; |
686 | ||
b7826503 | 687 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 688 | if (NILP (symbol) || EQ (symbol, Qt)) |
740ef0b5 | 689 | xsignal1 (Qsetting_constant, symbol); |
764ea377 JB |
690 | |
691 | function = XSYMBOL (symbol)->function; | |
692 | ||
693 | if (!NILP (Vautoload_queue) && !EQ (function, Qunbound)) | |
694 | Vautoload_queue = Fcons (Fcons (symbol, function), Vautoload_queue); | |
695 | ||
696 | if (CONSP (function) && EQ (XCAR (function), Qautoload)) | |
697 | Fput (symbol, Qautoload, XCDR (function)); | |
698 | ||
8c0b5540 | 699 | XSYMBOL (symbol)->function = definition; |
f845f2c9 | 700 | /* Handle automatic advice activation */ |
d9c2a0f2 | 701 | if (CONSP (XSYMBOL (symbol)->plist) && !NILP (Fget (symbol, Qad_advice_info))) |
f845f2c9 | 702 | { |
c1307a23 | 703 | call2 (Qad_activate_internal, symbol, Qnil); |
8c0b5540 | 704 | definition = XSYMBOL (symbol)->function; |
f845f2c9 | 705 | } |
8c0b5540 | 706 | return definition; |
7921925c JB |
707 | } |
708 | ||
d2fde41d SM |
709 | extern Lisp_Object Qfunction_documentation; |
710 | ||
711 | DEFUN ("defalias", Fdefalias, Sdefalias, 2, 3, 0, | |
8c1a1077 | 712 | doc: /* Set SYMBOL's function definition to DEFINITION, and return DEFINITION. |
96143227 RS |
713 | Associates the function with the current load file, if any. |
714 | The optional third argument DOCSTRING specifies the documentation string | |
715 | for SYMBOL; if it is omitted or nil, SYMBOL uses the documentation string | |
716 | determined by DEFINITION. */) | |
d2fde41d SM |
717 | (symbol, definition, docstring) |
718 | register Lisp_Object symbol, definition, docstring; | |
fc08c367 | 719 | { |
8a658a52 | 720 | CHECK_SYMBOL (symbol); |
894f6538 RS |
721 | if (CONSP (XSYMBOL (symbol)->function) |
722 | && EQ (XCAR (XSYMBOL (symbol)->function), Qautoload)) | |
723 | LOADHIST_ATTACH (Fcons (Qt, symbol)); | |
32f532b7 | 724 | definition = Ffset (symbol, definition); |
62a29071 | 725 | LOADHIST_ATTACH (Fcons (Qdefun, symbol)); |
d2fde41d SM |
726 | if (!NILP (docstring)) |
727 | Fput (symbol, Qfunction_documentation, docstring); | |
73e0d965 | 728 | return definition; |
fc08c367 RS |
729 | } |
730 | ||
7921925c | 731 | DEFUN ("setplist", Fsetplist, Ssetplist, 2, 2, 0, |
6b61353c | 732 | doc: /* Set SYMBOL's property list to NEWPLIST, and return NEWPLIST. */) |
8c1a1077 | 733 | (symbol, newplist) |
d9c2a0f2 | 734 | register Lisp_Object symbol, newplist; |
7921925c | 735 | { |
b7826503 | 736 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 737 | XSYMBOL (symbol)->plist = newplist; |
7921925c JB |
738 | return newplist; |
739 | } | |
ffd56f97 | 740 | |
6f0e897f | 741 | DEFUN ("subr-arity", Fsubr_arity, Ssubr_arity, 1, 1, 0, |
8c1a1077 PJ |
742 | doc: /* Return minimum and maximum number of args allowed for SUBR. |
743 | SUBR must be a built-in function. | |
744 | The returned value is a pair (MIN . MAX). MIN is the minimum number | |
745 | of args. MAX is the maximum number or the symbol `many', for a | |
746 | function with `&rest' args, or `unevalled' for a special form. */) | |
747 | (subr) | |
6f0e897f DL |
748 | Lisp_Object subr; |
749 | { | |
750 | short minargs, maxargs; | |
0c64a8cd | 751 | CHECK_SUBR (subr); |
6f0e897f DL |
752 | minargs = XSUBR (subr)->min_args; |
753 | maxargs = XSUBR (subr)->max_args; | |
754 | if (maxargs == MANY) | |
755 | return Fcons (make_number (minargs), Qmany); | |
756 | else if (maxargs == UNEVALLED) | |
757 | return Fcons (make_number (minargs), Qunevalled); | |
758 | else | |
759 | return Fcons (make_number (minargs), make_number (maxargs)); | |
760 | } | |
761 | ||
0fddae66 SM |
762 | DEFUN ("subr-name", Fsubr_name, Ssubr_name, 1, 1, 0, |
763 | doc: /* Return name of subroutine SUBR. | |
764 | SUBR must be a built-in function. */) | |
765 | (subr) | |
766 | Lisp_Object subr; | |
767 | { | |
768 | const char *name; | |
0c64a8cd | 769 | CHECK_SUBR (subr); |
0fddae66 SM |
770 | name = XSUBR (subr)->symbol_name; |
771 | return make_string (name, strlen (name)); | |
772 | } | |
773 | ||
6b61353c KH |
774 | DEFUN ("interactive-form", Finteractive_form, Sinteractive_form, 1, 1, 0, |
775 | doc: /* Return the interactive form of CMD or nil if none. | |
df133612 LT |
776 | If CMD is not a command, the return value is nil. |
777 | Value, if non-nil, is a list \(interactive SPEC). */) | |
6b61353c KH |
778 | (cmd) |
779 | Lisp_Object cmd; | |
cc515226 | 780 | { |
c4f46926 | 781 | Lisp_Object fun = indirect_function (cmd); /* Check cycles. */ |
764ea377 | 782 | |
c4f46926 SM |
783 | if (NILP (fun) || EQ (fun, Qunbound)) |
784 | return Qnil; | |
785 | ||
786 | /* Use an `interactive-form' property if present, analogous to the | |
787 | function-documentation property. */ | |
788 | fun = cmd; | |
789 | while (SYMBOLP (fun)) | |
790 | { | |
3860280a | 791 | Lisp_Object tmp = Fget (fun, Qinteractive_form); |
c4f46926 SM |
792 | if (!NILP (tmp)) |
793 | return tmp; | |
794 | else | |
795 | fun = Fsymbol_function (fun); | |
796 | } | |
6b61353c KH |
797 | |
798 | if (SUBRP (fun)) | |
799 | { | |
8a6d230a MC |
800 | char *spec = XSUBR (fun)->intspec; |
801 | if (spec) | |
802 | return list2 (Qinteractive, | |
803 | (*spec != '(') ? build_string (spec) : | |
804 | Fcar (Fread_from_string (build_string (spec), Qnil, Qnil))); | |
6b61353c KH |
805 | } |
806 | else if (COMPILEDP (fun)) | |
807 | { | |
808 | if ((ASIZE (fun) & PSEUDOVECTOR_SIZE_MASK) > COMPILED_INTERACTIVE) | |
809 | return list2 (Qinteractive, AREF (fun, COMPILED_INTERACTIVE)); | |
810 | } | |
811 | else if (CONSP (fun)) | |
812 | { | |
813 | Lisp_Object funcar = XCAR (fun); | |
814 | if (EQ (funcar, Qlambda)) | |
815 | return Fassq (Qinteractive, Fcdr (XCDR (fun))); | |
816 | else if (EQ (funcar, Qautoload)) | |
817 | { | |
818 | struct gcpro gcpro1; | |
819 | GCPRO1 (cmd); | |
820 | do_autoload (fun, cmd); | |
821 | UNGCPRO; | |
822 | return Finteractive_form (cmd); | |
823 | } | |
824 | } | |
cc515226 GM |
825 | return Qnil; |
826 | } | |
827 | ||
7921925c | 828 | \f |
f35d5bad GM |
829 | /*********************************************************************** |
830 | Getting and Setting Values of Symbols | |
831 | ***********************************************************************/ | |
832 | ||
833 | /* Return the symbol holding SYMBOL's value. Signal | |
834 | `cyclic-variable-indirection' if SYMBOL's chain of variable | |
835 | indirections contains a loop. */ | |
836 | ||
ad97b375 | 837 | struct Lisp_Symbol * |
971de7fb | 838 | indirect_variable (struct Lisp_Symbol *symbol) |
f35d5bad | 839 | { |
ad97b375 | 840 | struct Lisp_Symbol *tortoise, *hare; |
f35d5bad GM |
841 | |
842 | hare = tortoise = symbol; | |
843 | ||
ce5b453a | 844 | while (hare->redirect == SYMBOL_VARALIAS) |
f35d5bad | 845 | { |
ce5b453a SM |
846 | hare = SYMBOL_ALIAS (hare); |
847 | if (hare->redirect != SYMBOL_VARALIAS) | |
f35d5bad | 848 | break; |
bfb96cb7 | 849 | |
ce5b453a SM |
850 | hare = SYMBOL_ALIAS (hare); |
851 | tortoise = SYMBOL_ALIAS (tortoise); | |
f35d5bad | 852 | |
ad97b375 SM |
853 | if (hare == tortoise) |
854 | { | |
855 | Lisp_Object tem; | |
856 | XSETSYMBOL (tem, symbol); | |
857 | xsignal1 (Qcyclic_variable_indirection, tem); | |
858 | } | |
f35d5bad GM |
859 | } |
860 | ||
861 | return hare; | |
862 | } | |
863 | ||
864 | ||
865 | DEFUN ("indirect-variable", Findirect_variable, Sindirect_variable, 1, 1, 0, | |
8c1a1077 PJ |
866 | doc: /* Return the variable at the end of OBJECT's variable chain. |
867 | If OBJECT is a symbol, follow all variable indirections and return the final | |
868 | variable. If OBJECT is not a symbol, just return it. | |
869 | Signal a cyclic-variable-indirection error if there is a loop in the | |
870 | variable chain of symbols. */) | |
871 | (object) | |
f35d5bad GM |
872 | Lisp_Object object; |
873 | { | |
874 | if (SYMBOLP (object)) | |
ad97b375 | 875 | XSETSYMBOL (object, indirect_variable (XSYMBOL (object))); |
f35d5bad GM |
876 | return object; |
877 | } | |
878 | ||
7921925c JB |
879 | |
880 | /* Given the raw contents of a symbol value cell, | |
881 | return the Lisp value of the symbol. | |
882 | This does not handle buffer-local variables; use | |
883 | swap_in_symval_forwarding for that. */ | |
884 | ||
ce5b453a SM |
885 | #define do_blv_forwarding(blv) \ |
886 | ((blv)->forwarded ? do_symval_forwarding (BLV_FWD (blv)) : BLV_VALUE (blv)) | |
887 | ||
7921925c | 888 | Lisp_Object |
971de7fb | 889 | do_symval_forwarding (register union Lisp_Fwd *valcontents) |
7921925c JB |
890 | { |
891 | register Lisp_Object val; | |
ce5b453a SM |
892 | switch (XFWDTYPE (valcontents)) |
893 | { | |
894 | case Lisp_Fwd_Int: | |
895 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
896 | return val; | |
897 | ||
898 | case Lisp_Fwd_Bool: | |
899 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
900 | ||
901 | case Lisp_Fwd_Obj: | |
902 | return *XOBJFWD (valcontents)->objvar; | |
903 | ||
904 | case Lisp_Fwd_Buffer_Obj: | |
905 | return PER_BUFFER_VALUE (current_buffer, | |
906 | XBUFFER_OBJFWD (valcontents)->offset); | |
907 | ||
908 | case Lisp_Fwd_Kboard_Obj: | |
909 | /* We used to simply use current_kboard here, but from Lisp | |
910 | code, it's value is often unexpected. It seems nicer to | |
911 | allow constructions like this to work as intuitively expected: | |
912 | ||
913 | (with-selected-frame frame | |
914 | (define-key local-function-map "\eOP" [f1])) | |
915 | ||
916 | On the other hand, this affects the semantics of | |
917 | last-command and real-last-command, and people may rely on | |
918 | that. I took a quick look at the Lisp codebase, and I | |
919 | don't think anything will break. --lorentey */ | |
920 | return *(Lisp_Object *)(XKBOARD_OBJFWD (valcontents)->offset | |
921 | + (char *)FRAME_KBOARD (SELECTED_FRAME ())); | |
922 | default: abort (); | |
923 | } | |
7921925c JB |
924 | } |
925 | ||
d9c2a0f2 EN |
926 | /* Store NEWVAL into SYMBOL, where VALCONTENTS is found in the value cell |
927 | of SYMBOL. If SYMBOL is buffer-local, VALCONTENTS should be the | |
7921925c | 928 | buffer-independent contents of the value cell: forwarded just one |
7a283f36 GM |
929 | step past the buffer-localness. |
930 | ||
931 | BUF non-zero means set the value in buffer BUF instead of the | |
932 | current buffer. This only plays a role for per-buffer variables. */ | |
7921925c | 933 | |
ce5b453a SM |
934 | #define store_blv_forwarding(blv, newval, buf) \ |
935 | do { \ | |
936 | if ((blv)->forwarded) \ | |
937 | store_symval_forwarding (BLV_FWD (blv), (newval), (buf)); \ | |
938 | else \ | |
939 | SET_BLV_VALUE (blv, newval); \ | |
940 | } while (0) | |
941 | ||
942 | static void | |
971de7fb | 943 | store_symval_forwarding (union Lisp_Fwd *valcontents, register Lisp_Object newval, struct buffer *buf) |
ce5b453a | 944 | /* struct Lisp_Symbol *symbol; */ |
971de7fb DN |
945 | |
946 | ||
947 | ||
7921925c | 948 | { |
ce5b453a | 949 | switch (XFWDTYPE (valcontents)) |
7921925c | 950 | { |
ce5b453a SM |
951 | case Lisp_Fwd_Int: |
952 | CHECK_NUMBER (newval); | |
953 | *XINTFWD (valcontents)->intvar = XINT (newval); | |
954 | break; | |
aa3830c4 | 955 | |
ce5b453a SM |
956 | case Lisp_Fwd_Bool: |
957 | *XBOOLFWD (valcontents)->boolvar = !NILP (newval); | |
958 | break; | |
aa3830c4 | 959 | |
ce5b453a SM |
960 | case Lisp_Fwd_Obj: |
961 | *XOBJFWD (valcontents)->objvar = newval; | |
aa3830c4 | 962 | |
ce5b453a SM |
963 | /* If this variable is a default for something stored |
964 | in the buffer itself, such as default-fill-column, | |
965 | find the buffers that don't have local values for it | |
966 | and update them. */ | |
967 | if (XOBJFWD (valcontents)->objvar > (Lisp_Object *) &buffer_defaults | |
968 | && XOBJFWD (valcontents)->objvar < (Lisp_Object *) (&buffer_defaults + 1)) | |
46b2ac21 | 969 | { |
ce5b453a SM |
970 | int offset = ((char *) XOBJFWD (valcontents)->objvar |
971 | - (char *) &buffer_defaults); | |
972 | int idx = PER_BUFFER_IDX (offset); | |
aa3830c4 | 973 | |
ce5b453a | 974 | Lisp_Object tail; |
aa3830c4 | 975 | |
ce5b453a SM |
976 | if (idx <= 0) |
977 | break; | |
aa3830c4 | 978 | |
ce5b453a | 979 | for (tail = Vbuffer_alist; CONSP (tail); tail = XCDR (tail)) |
6b61353c | 980 | { |
ce5b453a SM |
981 | Lisp_Object buf; |
982 | struct buffer *b; | |
6b61353c | 983 | |
ce5b453a SM |
984 | buf = Fcdr (XCAR (tail)); |
985 | if (!BUFFERP (buf)) continue; | |
986 | b = XBUFFER (buf); | |
6b61353c | 987 | |
ce5b453a SM |
988 | if (! PER_BUFFER_VALUE_P (b, idx)) |
989 | PER_BUFFER_VALUE (b, offset) = newval; | |
6b61353c | 990 | } |
ce5b453a SM |
991 | } |
992 | break; | |
7403b5c8 | 993 | |
ce5b453a SM |
994 | case Lisp_Fwd_Buffer_Obj: |
995 | { | |
996 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
997 | Lisp_Object type = XBUFFER_OBJFWD (valcontents)->slottype; | |
998 | ||
999 | if (!(NILP (type) || NILP (newval) | |
1000 | || (XINT (type) == LISP_INT_TAG | |
1001 | ? INTEGERP (newval) | |
1002 | : XTYPE (newval) == XINT (type)))) | |
1003 | buffer_slot_type_mismatch (newval, XINT (type)); | |
1004 | ||
1005 | if (buf == NULL) | |
1006 | buf = current_buffer; | |
1007 | PER_BUFFER_VALUE (buf, offset) = newval; | |
1008 | } | |
1009 | break; | |
7403b5c8 | 1010 | |
ce5b453a SM |
1011 | case Lisp_Fwd_Kboard_Obj: |
1012 | { | |
1013 | char *base = (char *) FRAME_KBOARD (SELECTED_FRAME ()); | |
1014 | char *p = base + XKBOARD_OBJFWD (valcontents)->offset; | |
1015 | *(Lisp_Object *) p = newval; | |
1016 | } | |
7921925c JB |
1017 | break; |
1018 | ||
7921925c | 1019 | default: |
ce5b453a | 1020 | abort (); /* goto def; */ |
7921925c JB |
1021 | } |
1022 | } | |
1023 | ||
b0d53add GM |
1024 | /* Set up SYMBOL to refer to its global binding. |
1025 | This makes it safe to alter the status of other bindings. */ | |
1026 | ||
1027 | void | |
971de7fb | 1028 | swap_in_global_binding (struct Lisp_Symbol *symbol) |
b0d53add | 1029 | { |
ce5b453a | 1030 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (symbol); |
b0d53add GM |
1031 | |
1032 | /* Unload the previously loaded binding. */ | |
ce5b453a SM |
1033 | if (blv->fwd) |
1034 | SET_BLV_VALUE (blv, do_symval_forwarding (blv->fwd)); | |
bfb96cb7 | 1035 | |
b0d53add | 1036 | /* Select the global binding in the symbol. */ |
ce5b453a SM |
1037 | blv->valcell = blv->defcell; |
1038 | if (blv->fwd) | |
1039 | store_symval_forwarding (blv->fwd, XCDR (blv->defcell), NULL); | |
b0d53add GM |
1040 | |
1041 | /* Indicate that the global binding is set up now. */ | |
ce5b453a SM |
1042 | blv->where = Qnil; |
1043 | SET_BLV_FOUND (blv, 0); | |
b0d53add GM |
1044 | } |
1045 | ||
2829d05f | 1046 | /* Set up the buffer-local symbol SYMBOL for validity in the current buffer. |
42e975f0 RS |
1047 | VALCONTENTS is the contents of its value cell, |
1048 | which points to a struct Lisp_Buffer_Local_Value. | |
1049 | ||
1050 | Return the value forwarded one step past the buffer-local stage. | |
1051 | This could be another forwarding pointer. */ | |
7921925c | 1052 | |
ce5b453a | 1053 | static void |
971de7fb | 1054 | swap_in_symval_forwarding (struct Lisp_Symbol *symbol, struct Lisp_Buffer_Local_Value *blv) |
7921925c | 1055 | { |
7921925c | 1056 | register Lisp_Object tem1; |
bfb96cb7 | 1057 | |
ce5b453a SM |
1058 | eassert (blv == SYMBOL_BLV (symbol)); |
1059 | ||
1060 | tem1 = blv->where; | |
7921925c | 1061 | |
42e975f0 | 1062 | if (NILP (tem1) |
ce5b453a SM |
1063 | || (blv->frame_local |
1064 | ? !EQ (selected_frame, tem1) | |
1065 | : current_buffer != XBUFFER (tem1))) | |
7921925c | 1066 | { |
bfb96cb7 | 1067 | |
42e975f0 | 1068 | /* Unload the previously loaded binding. */ |
ce5b453a SM |
1069 | tem1 = blv->valcell; |
1070 | if (blv->fwd) | |
1071 | SET_BLV_VALUE (blv, do_symval_forwarding (blv->fwd)); | |
42e975f0 | 1072 | /* Choose the new binding. */ |
ce5b453a SM |
1073 | { |
1074 | Lisp_Object var; | |
1075 | XSETSYMBOL (var, symbol); | |
1076 | if (blv->frame_local) | |
1077 | { | |
1078 | tem1 = assq_no_quit (var, XFRAME (selected_frame)->param_alist); | |
1079 | blv->where = selected_frame; | |
1080 | } | |
1081 | else | |
1082 | { | |
1083 | tem1 = assq_no_quit (var, current_buffer->local_var_alist); | |
1084 | XSETBUFFER (blv->where, current_buffer); | |
1085 | } | |
1086 | } | |
1087 | if (!(blv->found = !NILP (tem1))) | |
1088 | tem1 = blv->defcell; | |
b0c2d1c6 | 1089 | |
42e975f0 | 1090 | /* Load the new binding. */ |
ce5b453a SM |
1091 | blv->valcell = tem1; |
1092 | if (blv->fwd) | |
1093 | store_symval_forwarding (blv->fwd, BLV_VALUE (blv), NULL); | |
7921925c | 1094 | } |
7921925c JB |
1095 | } |
1096 | \f | |
14e76af9 JB |
1097 | /* Find the value of a symbol, returning Qunbound if it's not bound. |
1098 | This is helpful for code which just wants to get a variable's value | |
8e6208c5 | 1099 | if it has one, without signaling an error. |
14e76af9 JB |
1100 | Note that it must not be possible to quit |
1101 | within this function. Great care is required for this. */ | |
7921925c | 1102 | |
14e76af9 | 1103 | Lisp_Object |
971de7fb | 1104 | find_symbol_value (Lisp_Object symbol) |
7921925c | 1105 | { |
ce5b453a | 1106 | struct Lisp_Symbol *sym; |
bfb96cb7 | 1107 | |
b7826503 | 1108 | CHECK_SYMBOL (symbol); |
ce5b453a | 1109 | sym = XSYMBOL (symbol); |
7921925c | 1110 | |
ce5b453a SM |
1111 | start: |
1112 | switch (sym->redirect) | |
1113 | { | |
1114 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
1115 | case SYMBOL_PLAINVAL: return SYMBOL_VAL (sym); | |
1116 | case SYMBOL_LOCALIZED: | |
1117 | { | |
1118 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
1119 | swap_in_symval_forwarding (sym, blv); | |
1120 | return blv->fwd ? do_symval_forwarding (blv->fwd) : BLV_VALUE (blv); | |
1121 | } | |
1122 | /* FALLTHROUGH */ | |
1123 | case SYMBOL_FORWARDED: | |
1124 | return do_symval_forwarding (SYMBOL_FWD (sym)); | |
1125 | default: abort (); | |
1126 | } | |
7921925c JB |
1127 | } |
1128 | ||
14e76af9 | 1129 | DEFUN ("symbol-value", Fsymbol_value, Ssymbol_value, 1, 1, 0, |
8c1a1077 PJ |
1130 | doc: /* Return SYMBOL's value. Error if that is void. */) |
1131 | (symbol) | |
d9c2a0f2 | 1132 | Lisp_Object symbol; |
14e76af9 | 1133 | { |
0671d7c0 | 1134 | Lisp_Object val; |
14e76af9 | 1135 | |
d9c2a0f2 | 1136 | val = find_symbol_value (symbol); |
740ef0b5 | 1137 | if (!EQ (val, Qunbound)) |
14e76af9 | 1138 | return val; |
740ef0b5 KS |
1139 | |
1140 | xsignal1 (Qvoid_variable, symbol); | |
14e76af9 JB |
1141 | } |
1142 | ||
7921925c | 1143 | DEFUN ("set", Fset, Sset, 2, 2, 0, |
8c1a1077 PJ |
1144 | doc: /* Set SYMBOL's value to NEWVAL, and return NEWVAL. */) |
1145 | (symbol, newval) | |
d9c2a0f2 | 1146 | register Lisp_Object symbol, newval; |
05ef7169 | 1147 | { |
94b612ad | 1148 | set_internal (symbol, newval, Qnil, 0); |
ce5b453a | 1149 | return newval; |
05ef7169 RS |
1150 | } |
1151 | ||
1f35ce36 RS |
1152 | /* Return 1 if SYMBOL currently has a let-binding |
1153 | which was made in the buffer that is now current. */ | |
1154 | ||
1155 | static int | |
ce5b453a | 1156 | let_shadows_buffer_binding_p (struct Lisp_Symbol *symbol) |
1f35ce36 | 1157 | { |
ce5b453a | 1158 | struct specbinding *p; |
1f35ce36 RS |
1159 | |
1160 | for (p = specpdl_ptr - 1; p >= specpdl; p--) | |
f35d5bad GM |
1161 | if (p->func == NULL |
1162 | && CONSP (p->symbol)) | |
1163 | { | |
ad97b375 | 1164 | struct Lisp_Symbol *let_bound_symbol = XSYMBOL (XCAR (p->symbol)); |
ce5b453a SM |
1165 | eassert (let_bound_symbol->redirect != SYMBOL_VARALIAS); |
1166 | if (symbol == let_bound_symbol | |
f35d5bad GM |
1167 | && XBUFFER (XCDR (XCDR (p->symbol))) == current_buffer) |
1168 | break; | |
1169 | } | |
1f35ce36 | 1170 | |
f35d5bad | 1171 | return p >= specpdl; |
1f35ce36 RS |
1172 | } |
1173 | ||
ce5b453a | 1174 | static int |
971de7fb | 1175 | let_shadows_global_binding_p (Lisp_Object symbol) |
ce5b453a SM |
1176 | { |
1177 | struct specbinding *p; | |
1178 | ||
1179 | for (p = specpdl_ptr - 1; p >= specpdl; p--) | |
1180 | if (p->func == NULL && EQ (p->symbol, symbol)) | |
1181 | break; | |
1182 | ||
1183 | return p >= specpdl; | |
1184 | } | |
1185 | ||
25638b07 | 1186 | /* Store the value NEWVAL into SYMBOL. |
94b612ad SM |
1187 | If buffer/frame-locality is an issue, WHERE specifies which context to use. |
1188 | (nil stands for the current buffer/frame). | |
2829d05f | 1189 | |
05ef7169 RS |
1190 | If BINDFLAG is zero, then if this symbol is supposed to become |
1191 | local in every buffer where it is set, then we make it local. | |
1192 | If BINDFLAG is nonzero, we don't do that. */ | |
1193 | ||
ce5b453a | 1194 | void |
971de7fb | 1195 | set_internal (register Lisp_Object symbol, register Lisp_Object newval, register Lisp_Object where, int bindflag) |
7921925c | 1196 | { |
1bfcade3 | 1197 | int voide = EQ (newval, Qunbound); |
ce5b453a SM |
1198 | struct Lisp_Symbol *sym; |
1199 | Lisp_Object tem1; | |
7921925c | 1200 | |
2829d05f | 1201 | /* If restoring in a dead buffer, do nothing. */ |
94b612ad SM |
1202 | /* if (BUFFERP (where) && NILP (XBUFFER (where)->name)) |
1203 | return; */ | |
2829d05f | 1204 | |
b7826503 | 1205 | CHECK_SYMBOL (symbol); |
ce5b453a | 1206 | if (SYMBOL_CONSTANT_P (symbol)) |
7921925c | 1207 | { |
ce5b453a SM |
1208 | if (NILP (Fkeywordp (symbol)) |
1209 | || !EQ (newval, Fsymbol_value (symbol))) | |
1210 | xsignal1 (Qsetting_constant, symbol); | |
1211 | else | |
1212 | /* Allow setting keywords to their own value. */ | |
1213 | return; | |
7921925c | 1214 | } |
42e975f0 | 1215 | |
ce5b453a | 1216 | sym = XSYMBOL (symbol); |
7921925c | 1217 | |
ce5b453a SM |
1218 | start: |
1219 | switch (sym->redirect) | |
1220 | { | |
1221 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
1222 | case SYMBOL_PLAINVAL: SET_SYMBOL_VAL (sym , newval); return; | |
1223 | case SYMBOL_LOCALIZED: | |
1224 | { | |
1225 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
94b612ad SM |
1226 | if (NILP (where)) |
1227 | { | |
1228 | if (blv->frame_local) | |
1229 | where = selected_frame; | |
1230 | else | |
1231 | XSETBUFFER (where, current_buffer); | |
1232 | } | |
ce5b453a SM |
1233 | /* If the current buffer is not the buffer whose binding is |
1234 | loaded, or if there may be frame-local bindings and the frame | |
1235 | isn't the right one, or if it's a Lisp_Buffer_Local_Value and | |
1236 | the default binding is loaded, the loaded binding may be the | |
1237 | wrong one. */ | |
94b612ad | 1238 | if (!EQ (blv->where, where) |
ce5b453a SM |
1239 | /* Also unload a global binding (if the var is local_if_set). */ |
1240 | || (EQ (blv->valcell, blv->defcell))) | |
1241 | { | |
1242 | /* The currently loaded binding is not necessarily valid. | |
1243 | We need to unload it, and choose a new binding. */ | |
1244 | ||
1245 | /* Write out `realvalue' to the old loaded binding. */ | |
1246 | if (blv->fwd) | |
1247 | SET_BLV_VALUE (blv, do_symval_forwarding (blv->fwd)); | |
b0c2d1c6 | 1248 | |
ce5b453a | 1249 | /* Find the new binding. */ |
94b612ad SM |
1250 | XSETSYMBOL (symbol, sym); /* May have changed via aliasing. */ |
1251 | tem1 = Fassq (symbol, | |
1252 | (blv->frame_local | |
1253 | ? XFRAME (where)->param_alist | |
1254 | : XBUFFER (where)->local_var_alist)); | |
1255 | blv->where = where; | |
ce5b453a SM |
1256 | blv->found = 1; |
1257 | ||
1258 | if (NILP (tem1)) | |
1259 | { | |
1260 | /* This buffer still sees the default value. */ | |
1261 | ||
1262 | /* If the variable is a Lisp_Some_Buffer_Local_Value, | |
1263 | or if this is `let' rather than `set', | |
1264 | make CURRENT-ALIST-ELEMENT point to itself, | |
1265 | indicating that we're seeing the default value. | |
1266 | Likewise if the variable has been let-bound | |
1267 | in the current buffer. */ | |
1268 | if (bindflag || !blv->local_if_set | |
1269 | || let_shadows_buffer_binding_p (sym)) | |
1270 | { | |
1271 | blv->found = 0; | |
1272 | tem1 = blv->defcell; | |
1273 | } | |
1274 | /* If it's a local_if_set, being set not bound, | |
1275 | and we're not within a let that was made for this buffer, | |
1276 | create a new buffer-local binding for the variable. | |
1277 | That means, give this buffer a new assoc for a local value | |
1278 | and load that binding. */ | |
1279 | else | |
1280 | { | |
1281 | /* local_if_set is only supported for buffer-local | |
1282 | bindings, not for frame-local bindings. */ | |
1283 | eassert (!blv->frame_local); | |
1284 | tem1 = Fcons (symbol, XCDR (blv->defcell)); | |
94b612ad SM |
1285 | XBUFFER (where)->local_var_alist |
1286 | = Fcons (tem1, XBUFFER (where)->local_var_alist); | |
ce5b453a SM |
1287 | } |
1288 | } | |
1289 | ||
1290 | /* Record which binding is now loaded. */ | |
1291 | blv->valcell = tem1; | |
1292 | } | |
b0c2d1c6 | 1293 | |
ce5b453a SM |
1294 | /* Store the new value in the cons cell. */ |
1295 | SET_BLV_VALUE (blv, newval); | |
d8cafeb5 | 1296 | |
ce5b453a SM |
1297 | if (blv->fwd) |
1298 | { | |
1299 | if (voide) | |
1300 | /* If storing void (making the symbol void), forward only through | |
1301 | buffer-local indicator, not through Lisp_Objfwd, etc. */ | |
1302 | blv->fwd = NULL; | |
1303 | else | |
94b612ad SM |
1304 | store_symval_forwarding (blv->fwd, newval, |
1305 | BUFFERP (where) | |
1306 | ? XBUFFER (where) : current_buffer); | |
ce5b453a SM |
1307 | } |
1308 | break; | |
1309 | } | |
1310 | case SYMBOL_FORWARDED: | |
1311 | { | |
94b612ad SM |
1312 | struct buffer *buf |
1313 | = BUFFERP (where) ? XBUFFER (where) : current_buffer; | |
ce5b453a SM |
1314 | union Lisp_Fwd *innercontents = SYMBOL_FWD (sym); |
1315 | if (BUFFER_OBJFWDP (innercontents)) | |
1316 | { | |
1317 | int offset = XBUFFER_OBJFWD (innercontents)->offset; | |
1318 | int idx = PER_BUFFER_IDX (offset); | |
1319 | if (idx > 0 | |
1320 | && !bindflag | |
1321 | && !let_shadows_buffer_binding_p (sym)) | |
1322 | SET_PER_BUFFER_VALUE_P (buf, idx, 1); | |
1323 | } | |
569c11e3 | 1324 | |
ce5b453a SM |
1325 | if (voide) |
1326 | { /* If storing void (making the symbol void), forward only through | |
1327 | buffer-local indicator, not through Lisp_Objfwd, etc. */ | |
1328 | sym->redirect = SYMBOL_PLAINVAL; | |
1329 | SET_SYMBOL_VAL (sym, newval); | |
1330 | } | |
1331 | else | |
1332 | store_symval_forwarding (/* sym, */ innercontents, newval, buf); | |
1333 | break; | |
1334 | } | |
1335 | default: abort (); | |
7921925c | 1336 | } |
ce5b453a | 1337 | return; |
7921925c JB |
1338 | } |
1339 | \f | |
1340 | /* Access or set a buffer-local symbol's default value. */ | |
1341 | ||
d9c2a0f2 | 1342 | /* Return the default value of SYMBOL, but don't check for voidness. |
1bfcade3 | 1343 | Return Qunbound if it is void. */ |
7921925c JB |
1344 | |
1345 | Lisp_Object | |
971de7fb | 1346 | default_value (Lisp_Object symbol) |
7921925c | 1347 | { |
ce5b453a | 1348 | struct Lisp_Symbol *sym; |
7921925c | 1349 | |
b7826503 | 1350 | CHECK_SYMBOL (symbol); |
ce5b453a | 1351 | sym = XSYMBOL (symbol); |
7921925c | 1352 | |
ce5b453a SM |
1353 | start: |
1354 | switch (sym->redirect) | |
7921925c | 1355 | { |
ce5b453a SM |
1356 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1357 | case SYMBOL_PLAINVAL: return SYMBOL_VAL (sym); | |
1358 | case SYMBOL_LOCALIZED: | |
1359 | { | |
1360 | /* If var is set up for a buffer that lacks a local value for it, | |
1361 | the current value is nominally the default value. | |
1362 | But the `realvalue' slot may be more up to date, since | |
1363 | ordinary setq stores just that slot. So use that. */ | |
1364 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
1365 | if (blv->fwd && EQ (blv->valcell, blv->defcell)) | |
1366 | return do_symval_forwarding (blv->fwd); | |
1367 | else | |
1368 | return XCDR (blv->defcell); | |
1369 | } | |
1370 | case SYMBOL_FORWARDED: | |
1371 | { | |
1372 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
7921925c | 1373 | |
ce5b453a SM |
1374 | /* For a built-in buffer-local variable, get the default value |
1375 | rather than letting do_symval_forwarding get the current value. */ | |
1376 | if (BUFFER_OBJFWDP (valcontents)) | |
1377 | { | |
1378 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
1379 | if (PER_BUFFER_IDX (offset) != 0) | |
1380 | return PER_BUFFER_DEFAULT (offset); | |
1381 | } | |
1382 | ||
1383 | /* For other variables, get the current value. */ | |
1384 | return do_symval_forwarding (valcontents); | |
1385 | } | |
1386 | default: abort (); | |
7921925c | 1387 | } |
7921925c JB |
1388 | } |
1389 | ||
1390 | DEFUN ("default-boundp", Fdefault_boundp, Sdefault_boundp, 1, 1, 0, | |
8c1a1077 PJ |
1391 | doc: /* Return t if SYMBOL has a non-void default value. |
1392 | This is the value that is seen in buffers that do not have their own values | |
1393 | for this variable. */) | |
1394 | (symbol) | |
d9c2a0f2 | 1395 | Lisp_Object symbol; |
7921925c JB |
1396 | { |
1397 | register Lisp_Object value; | |
1398 | ||
d9c2a0f2 | 1399 | value = default_value (symbol); |
1bfcade3 | 1400 | return (EQ (value, Qunbound) ? Qnil : Qt); |
7921925c JB |
1401 | } |
1402 | ||
1403 | DEFUN ("default-value", Fdefault_value, Sdefault_value, 1, 1, 0, | |
8c1a1077 PJ |
1404 | doc: /* Return SYMBOL's default value. |
1405 | This is the value that is seen in buffers that do not have their own values | |
1406 | for this variable. The default value is meaningful for variables with | |
1407 | local bindings in certain buffers. */) | |
1408 | (symbol) | |
d9c2a0f2 | 1409 | Lisp_Object symbol; |
7921925c JB |
1410 | { |
1411 | register Lisp_Object value; | |
1412 | ||
d9c2a0f2 | 1413 | value = default_value (symbol); |
740ef0b5 KS |
1414 | if (!EQ (value, Qunbound)) |
1415 | return value; | |
1416 | ||
1417 | xsignal1 (Qvoid_variable, symbol); | |
7921925c JB |
1418 | } |
1419 | ||
1420 | DEFUN ("set-default", Fset_default, Sset_default, 2, 2, 0, | |
6e86a75d | 1421 | doc: /* Set SYMBOL's default value to VALUE. SYMBOL and VALUE are evaluated. |
8c1a1077 PJ |
1422 | The default value is seen in buffers that do not have their own values |
1423 | for this variable. */) | |
1424 | (symbol, value) | |
d9c2a0f2 | 1425 | Lisp_Object symbol, value; |
7921925c | 1426 | { |
ce5b453a | 1427 | struct Lisp_Symbol *sym; |
7921925c | 1428 | |
b7826503 | 1429 | CHECK_SYMBOL (symbol); |
ce5b453a | 1430 | if (SYMBOL_CONSTANT_P (symbol)) |
7921925c | 1431 | { |
ce5b453a SM |
1432 | if (NILP (Fkeywordp (symbol)) |
1433 | || !EQ (value, Fdefault_value (symbol))) | |
1434 | xsignal1 (Qsetting_constant, symbol); | |
1435 | else | |
1436 | /* Allow setting keywords to their own value. */ | |
1437 | return value; | |
1438 | } | |
1439 | sym = XSYMBOL (symbol); | |
7921925c | 1440 | |
ce5b453a SM |
1441 | start: |
1442 | switch (sym->redirect) | |
1443 | { | |
1444 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
1445 | case SYMBOL_PLAINVAL: return Fset (symbol, value); | |
1446 | case SYMBOL_LOCALIZED: | |
1447 | { | |
1448 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
984ef137 | 1449 | |
ce5b453a SM |
1450 | /* Store new value into the DEFAULT-VALUE slot. */ |
1451 | XSETCDR (blv->defcell, value); | |
bfb96cb7 | 1452 | |
ce5b453a SM |
1453 | /* If the default binding is now loaded, set the REALVALUE slot too. */ |
1454 | if (blv->fwd && EQ (blv->defcell, blv->valcell)) | |
1455 | store_symval_forwarding (blv->fwd, value, NULL); | |
1456 | return value; | |
1457 | } | |
1458 | case SYMBOL_FORWARDED: | |
1459 | { | |
1460 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
7921925c | 1461 | |
ce5b453a SM |
1462 | /* Handle variables like case-fold-search that have special slots |
1463 | in the buffer. | |
1464 | Make them work apparently like Lisp_Buffer_Local_Value variables. */ | |
1465 | if (BUFFER_OBJFWDP (valcontents)) | |
1466 | { | |
1467 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
1468 | int idx = PER_BUFFER_IDX (offset); | |
7921925c | 1469 | |
ce5b453a | 1470 | PER_BUFFER_DEFAULT (offset) = value; |
7921925c | 1471 | |
ce5b453a SM |
1472 | /* If this variable is not always local in all buffers, |
1473 | set it in the buffers that don't nominally have a local value. */ | |
1474 | if (idx > 0) | |
1475 | { | |
1476 | struct buffer *b; | |
7921925c | 1477 | |
ce5b453a SM |
1478 | for (b = all_buffers; b; b = b->next) |
1479 | if (!PER_BUFFER_VALUE_P (b, idx)) | |
1480 | PER_BUFFER_VALUE (b, offset) = value; | |
1481 | } | |
1482 | return value; | |
1483 | } | |
1484 | else | |
1485 | return Fset (symbol, value); | |
1486 | } | |
1487 | default: abort (); | |
1488 | } | |
7921925c JB |
1489 | } |
1490 | ||
7a7df7ac | 1491 | DEFUN ("setq-default", Fsetq_default, Ssetq_default, 0, UNEVALLED, 0, |
8c1a1077 PJ |
1492 | doc: /* Set the default value of variable VAR to VALUE. |
1493 | VAR, the variable name, is literal (not evaluated); | |
bfb96cb7 | 1494 | VALUE is an expression: it is evaluated and its value returned. |
8c1a1077 PJ |
1495 | The default value of a variable is seen in buffers |
1496 | that do not have their own values for the variable. | |
1497 | ||
1498 | More generally, you can use multiple variables and values, as in | |
948d2995 JB |
1499 | (setq-default VAR VALUE VAR VALUE...) |
1500 | This sets each VAR's default value to the corresponding VALUE. | |
1501 | The VALUE for the Nth VAR can refer to the new default values | |
1502 | of previous VARs. | |
70e9f399 | 1503 | usage: (setq-default [VAR VALUE]...) */) |
8c1a1077 | 1504 | (args) |
7921925c JB |
1505 | Lisp_Object args; |
1506 | { | |
1507 | register Lisp_Object args_left; | |
d9c2a0f2 | 1508 | register Lisp_Object val, symbol; |
7921925c JB |
1509 | struct gcpro gcpro1; |
1510 | ||
a33ef3ab | 1511 | if (NILP (args)) |
7921925c JB |
1512 | return Qnil; |
1513 | ||
1514 | args_left = args; | |
1515 | GCPRO1 (args); | |
1516 | ||
1517 | do | |
1518 | { | |
1519 | val = Feval (Fcar (Fcdr (args_left))); | |
d2fde41d | 1520 | symbol = XCAR (args_left); |
d9c2a0f2 | 1521 | Fset_default (symbol, val); |
d2fde41d | 1522 | args_left = Fcdr (XCDR (args_left)); |
7921925c | 1523 | } |
a33ef3ab | 1524 | while (!NILP (args_left)); |
7921925c JB |
1525 | |
1526 | UNGCPRO; | |
1527 | return val; | |
1528 | } | |
1529 | \f | |
a5ca2b75 JB |
1530 | /* Lisp functions for creating and removing buffer-local variables. */ |
1531 | ||
ce5b453a SM |
1532 | union Lisp_Val_Fwd |
1533 | { | |
1534 | Lisp_Object value; | |
1535 | union Lisp_Fwd *fwd; | |
1536 | }; | |
1537 | ||
1538 | static struct Lisp_Buffer_Local_Value * | |
1539 | make_blv (struct Lisp_Symbol *sym, int forwarded, union Lisp_Val_Fwd valcontents) | |
1540 | { | |
1541 | struct Lisp_Buffer_Local_Value *blv | |
1542 | = xmalloc (sizeof (struct Lisp_Buffer_Local_Value)); | |
c632dfda JD |
1543 | Lisp_Object symbol; |
1544 | Lisp_Object tem; | |
1545 | ||
1546 | XSETSYMBOL (symbol, sym); | |
1547 | tem = Fcons (symbol, (forwarded | |
1548 | ? do_symval_forwarding (valcontents.fwd) | |
1549 | : valcontents.value)); | |
1550 | ||
ce5b453a SM |
1551 | /* Buffer_Local_Values cannot have as realval a buffer-local |
1552 | or keyboard-local forwarding. */ | |
1553 | eassert (!(forwarded && BUFFER_OBJFWDP (valcontents.fwd))); | |
1554 | eassert (!(forwarded && KBOARD_OBJFWDP (valcontents.fwd))); | |
1555 | blv->fwd = forwarded ? valcontents.fwd : NULL; | |
1556 | blv->where = Qnil; | |
1557 | blv->frame_local = 0; | |
1558 | blv->local_if_set = 0; | |
1559 | blv->defcell = tem; | |
1560 | blv->valcell = tem; | |
1561 | SET_BLV_FOUND (blv, 0); | |
1562 | return blv; | |
1563 | } | |
1564 | ||
7921925c | 1565 | DEFUN ("make-variable-buffer-local", Fmake_variable_buffer_local, Smake_variable_buffer_local, |
8c1a1077 PJ |
1566 | 1, 1, "vMake Variable Buffer Local: ", |
1567 | doc: /* Make VARIABLE become buffer-local whenever it is set. | |
1568 | At any time, the value for the current buffer is in effect, | |
1569 | unless the variable has never been set in this buffer, | |
1570 | in which case the default value is in effect. | |
1571 | Note that binding the variable with `let', or setting it while | |
1572 | a `let'-style binding made in this buffer is in effect, | |
bfb96cb7 | 1573 | does not make the variable buffer-local. Return VARIABLE. |
8c1a1077 | 1574 | |
a9908653 RS |
1575 | In most cases it is better to use `make-local-variable', |
1576 | which makes a variable local in just one buffer. | |
1577 | ||
8c1a1077 PJ |
1578 | The function `default-value' gets the default value and `set-default' sets it. */) |
1579 | (variable) | |
d9c2a0f2 | 1580 | register Lisp_Object variable; |
7921925c | 1581 | { |
ad97b375 | 1582 | struct Lisp_Symbol *sym; |
ce5b453a SM |
1583 | struct Lisp_Buffer_Local_Value *blv = NULL; |
1584 | union Lisp_Val_Fwd valcontents; | |
1585 | int forwarded; | |
7921925c | 1586 | |
b7826503 | 1587 | CHECK_SYMBOL (variable); |
ce5b453a | 1588 | sym = XSYMBOL (variable); |
7921925c | 1589 | |
ce5b453a SM |
1590 | start: |
1591 | switch (sym->redirect) | |
fd9440c5 | 1592 | { |
ce5b453a SM |
1593 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1594 | case SYMBOL_PLAINVAL: | |
1595 | forwarded = 0; valcontents.value = SYMBOL_VAL (sym); | |
1596 | if (EQ (valcontents.value, Qunbound)) | |
1597 | valcontents.value = Qnil; | |
1598 | break; | |
1599 | case SYMBOL_LOCALIZED: | |
1600 | blv = SYMBOL_BLV (sym); | |
1601 | if (blv->frame_local) | |
1602 | error ("Symbol %s may not be buffer-local", | |
1603 | SDATA (SYMBOL_NAME (variable))); | |
1604 | break; | |
1605 | case SYMBOL_FORWARDED: | |
1606 | forwarded = 1; valcontents.fwd = SYMBOL_FWD (sym); | |
1607 | if (KBOARD_OBJFWDP (valcontents.fwd)) | |
1608 | error ("Symbol %s may not be buffer-local", | |
1609 | SDATA (SYMBOL_NAME (variable))); | |
1610 | else if (BUFFER_OBJFWDP (valcontents.fwd)) | |
1611 | return variable; | |
1612 | break; | |
1613 | default: abort (); | |
fd9440c5 | 1614 | } |
ce5b453a SM |
1615 | |
1616 | if (sym->constant) | |
1617 | error ("Symbol %s may not be buffer-local", SDATA (SYMBOL_NAME (variable))); | |
1618 | ||
1619 | if (!blv) | |
7921925c | 1620 | { |
ce5b453a SM |
1621 | blv = make_blv (sym, forwarded, valcontents); |
1622 | sym->redirect = SYMBOL_LOCALIZED; | |
1623 | SET_SYMBOL_BLV (sym, blv); | |
1624 | { | |
1625 | Lisp_Object symbol; | |
1626 | XSETSYMBOL (symbol, sym); /* In case `variable' is aliased. */ | |
1627 | if (let_shadows_global_binding_p (symbol)) | |
8b1e1112 SM |
1628 | message ("Making %s buffer-local while let-bound!", |
1629 | SDATA (SYMBOL_NAME (variable))); | |
ce5b453a | 1630 | } |
7921925c | 1631 | } |
ce5b453a SM |
1632 | |
1633 | blv->local_if_set = 1; | |
d9c2a0f2 | 1634 | return variable; |
7921925c JB |
1635 | } |
1636 | ||
1637 | DEFUN ("make-local-variable", Fmake_local_variable, Smake_local_variable, | |
8c1a1077 PJ |
1638 | 1, 1, "vMake Local Variable: ", |
1639 | doc: /* Make VARIABLE have a separate value in the current buffer. | |
1640 | Other buffers will continue to share a common default value. | |
1641 | \(The buffer-local value of VARIABLE starts out as the same value | |
1642 | VARIABLE previously had. If VARIABLE was void, it remains void.\) | |
a9908653 | 1643 | Return VARIABLE. |
8c1a1077 PJ |
1644 | |
1645 | If the variable is already arranged to become local when set, | |
1646 | this function causes a local value to exist for this buffer, | |
1647 | just as setting the variable would do. | |
1648 | ||
1649 | This function returns VARIABLE, and therefore | |
1650 | (set (make-local-variable 'VARIABLE) VALUE-EXP) | |
1651 | works. | |
1652 | ||
a9908653 RS |
1653 | See also `make-variable-buffer-local'. |
1654 | ||
8c1a1077 | 1655 | Do not use `make-local-variable' to make a hook variable buffer-local. |
515f3f25 | 1656 | Instead, use `add-hook' and specify t for the LOCAL argument. */) |
8c1a1077 | 1657 | (variable) |
d9c2a0f2 | 1658 | register Lisp_Object variable; |
7921925c | 1659 | { |
ce5b453a SM |
1660 | register Lisp_Object tem; |
1661 | int forwarded; | |
1662 | union Lisp_Val_Fwd valcontents; | |
ad97b375 | 1663 | struct Lisp_Symbol *sym; |
ce5b453a | 1664 | struct Lisp_Buffer_Local_Value *blv = NULL; |
7921925c | 1665 | |
b7826503 | 1666 | CHECK_SYMBOL (variable); |
ce5b453a | 1667 | sym = XSYMBOL (variable); |
7921925c | 1668 | |
ce5b453a SM |
1669 | start: |
1670 | switch (sym->redirect) | |
1671 | { | |
1672 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
1673 | case SYMBOL_PLAINVAL: | |
1674 | forwarded = 0; valcontents.value = SYMBOL_VAL (sym); break; | |
1675 | case SYMBOL_LOCALIZED: | |
1676 | blv = SYMBOL_BLV (sym); | |
1677 | if (blv->frame_local) | |
1678 | error ("Symbol %s may not be buffer-local", | |
1679 | SDATA (SYMBOL_NAME (variable))); | |
1680 | break; | |
1681 | case SYMBOL_FORWARDED: | |
1682 | forwarded = 1; valcontents.fwd = SYMBOL_FWD (sym); | |
1683 | if (KBOARD_OBJFWDP (valcontents.fwd)) | |
1684 | error ("Symbol %s may not be buffer-local", | |
1685 | SDATA (SYMBOL_NAME (variable))); | |
1686 | break; | |
1687 | default: abort (); | |
1688 | } | |
1689 | ||
1690 | if (sym->constant) | |
8b1e1112 SM |
1691 | error ("Symbol %s may not be buffer-local", |
1692 | SDATA (SYMBOL_NAME (variable))); | |
7921925c | 1693 | |
ce5b453a SM |
1694 | if (blv ? blv->local_if_set |
1695 | : (forwarded && BUFFER_OBJFWDP (valcontents.fwd))) | |
7921925c | 1696 | { |
d9c2a0f2 | 1697 | tem = Fboundp (variable); |
7921925c JB |
1698 | /* Make sure the symbol has a local value in this particular buffer, |
1699 | by setting it to the same value it already has. */ | |
d9c2a0f2 EN |
1700 | Fset (variable, (EQ (tem, Qt) ? Fsymbol_value (variable) : Qunbound)); |
1701 | return variable; | |
7921925c | 1702 | } |
ce5b453a | 1703 | if (!blv) |
7921925c | 1704 | { |
ce5b453a SM |
1705 | blv = make_blv (sym, forwarded, valcontents); |
1706 | sym->redirect = SYMBOL_LOCALIZED; | |
1707 | SET_SYMBOL_BLV (sym, blv); | |
1708 | { | |
1709 | Lisp_Object symbol; | |
1710 | XSETSYMBOL (symbol, sym); /* In case `variable' is aliased. */ | |
1711 | if (let_shadows_global_binding_p (symbol)) | |
8b1e1112 SM |
1712 | message ("Making %s local to %s while let-bound!", |
1713 | SDATA (SYMBOL_NAME (variable)), | |
1714 | SDATA (current_buffer->name)); | |
ce5b453a | 1715 | } |
7921925c | 1716 | } |
ce5b453a | 1717 | |
42e975f0 | 1718 | /* Make sure this buffer has its own value of symbol. */ |
ce5b453a | 1719 | XSETSYMBOL (variable, sym); /* Update in case of aliasing. */ |
d9c2a0f2 | 1720 | tem = Fassq (variable, current_buffer->local_var_alist); |
a33ef3ab | 1721 | if (NILP (tem)) |
7921925c | 1722 | { |
ce5b453a SM |
1723 | if (let_shadows_buffer_binding_p (sym)) |
1724 | message ("Making %s buffer-local while locally let-bound!", | |
1725 | SDATA (SYMBOL_NAME (variable))); | |
1726 | ||
a5d004a1 RS |
1727 | /* Swap out any local binding for some other buffer, and make |
1728 | sure the current value is permanently recorded, if it's the | |
1729 | default value. */ | |
d9c2a0f2 | 1730 | find_symbol_value (variable); |
a5d004a1 | 1731 | |
7921925c | 1732 | current_buffer->local_var_alist |
ce5b453a | 1733 | = Fcons (Fcons (variable, XCDR (blv->defcell)), |
7921925c JB |
1734 | current_buffer->local_var_alist); |
1735 | ||
1736 | /* Make sure symbol does not think it is set up for this buffer; | |
42e975f0 | 1737 | force it to look once again for this buffer's value. */ |
ce5b453a SM |
1738 | if (current_buffer == XBUFFER (blv->where)) |
1739 | blv->where = Qnil; | |
1740 | /* blv->valcell = blv->defcell; | |
1741 | * SET_BLV_FOUND (blv, 0); */ | |
1742 | blv->found = 0; | |
7921925c | 1743 | } |
a5ca2b75 | 1744 | |
42e975f0 RS |
1745 | /* If the symbol forwards into a C variable, then load the binding |
1746 | for this buffer now. If C code modifies the variable before we | |
1747 | load the binding in, then that new value will clobber the default | |
1748 | binding the next time we unload it. */ | |
ce5b453a SM |
1749 | if (blv->fwd) |
1750 | swap_in_symval_forwarding (sym, blv); | |
a5ca2b75 | 1751 | |
d9c2a0f2 | 1752 | return variable; |
7921925c JB |
1753 | } |
1754 | ||
1755 | DEFUN ("kill-local-variable", Fkill_local_variable, Skill_local_variable, | |
8c1a1077 PJ |
1756 | 1, 1, "vKill Local Variable: ", |
1757 | doc: /* Make VARIABLE no longer have a separate value in the current buffer. | |
bfb96cb7 | 1758 | From now on the default value will apply in this buffer. Return VARIABLE. */) |
8c1a1077 | 1759 | (variable) |
d9c2a0f2 | 1760 | register Lisp_Object variable; |
7921925c | 1761 | { |
ce5b453a SM |
1762 | register Lisp_Object tem; |
1763 | struct Lisp_Buffer_Local_Value *blv; | |
ad97b375 | 1764 | struct Lisp_Symbol *sym; |
7921925c | 1765 | |
b7826503 | 1766 | CHECK_SYMBOL (variable); |
ce5b453a | 1767 | sym = XSYMBOL (variable); |
7921925c | 1768 | |
ce5b453a SM |
1769 | start: |
1770 | switch (sym->redirect) | |
7921925c | 1771 | { |
ce5b453a SM |
1772 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1773 | case SYMBOL_PLAINVAL: return variable; | |
1774 | case SYMBOL_FORWARDED: | |
1775 | { | |
1776 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
1777 | if (BUFFER_OBJFWDP (valcontents)) | |
1778 | { | |
1779 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
1780 | int idx = PER_BUFFER_IDX (offset); | |
1781 | ||
1782 | if (idx > 0) | |
1783 | { | |
1784 | SET_PER_BUFFER_VALUE_P (current_buffer, idx, 0); | |
1785 | PER_BUFFER_VALUE (current_buffer, offset) | |
1786 | = PER_BUFFER_DEFAULT (offset); | |
1787 | } | |
1788 | } | |
1789 | return variable; | |
1790 | } | |
1791 | case SYMBOL_LOCALIZED: | |
1792 | blv = SYMBOL_BLV (sym); | |
1793 | if (blv->frame_local) | |
1794 | return variable; | |
1795 | break; | |
1796 | default: abort (); | |
7921925c JB |
1797 | } |
1798 | ||
42e975f0 | 1799 | /* Get rid of this buffer's alist element, if any. */ |
ad97b375 | 1800 | XSETSYMBOL (variable, sym); /* Propagate variable indirection. */ |
d9c2a0f2 | 1801 | tem = Fassq (variable, current_buffer->local_var_alist); |
a33ef3ab | 1802 | if (!NILP (tem)) |
8d4afcac KH |
1803 | current_buffer->local_var_alist |
1804 | = Fdelq (tem, current_buffer->local_var_alist); | |
7921925c | 1805 | |
42e975f0 RS |
1806 | /* If the symbol is set up with the current buffer's binding |
1807 | loaded, recompute its value. We have to do it now, or else | |
1808 | forwarded objects won't work right. */ | |
7921925c | 1809 | { |
ce5b453a SM |
1810 | Lisp_Object buf; XSETBUFFER (buf, current_buffer); |
1811 | if (EQ (buf, blv->where)) | |
79c83e03 | 1812 | { |
ce5b453a SM |
1813 | blv->where = Qnil; |
1814 | /* blv->valcell = blv->defcell; | |
1815 | * SET_BLV_FOUND (blv, 0); */ | |
1816 | blv->found = 0; | |
978dd578 | 1817 | find_symbol_value (variable); |
79c83e03 | 1818 | } |
7921925c JB |
1819 | } |
1820 | ||
d9c2a0f2 | 1821 | return variable; |
7921925c | 1822 | } |
62476adc | 1823 | |
b0c2d1c6 RS |
1824 | /* Lisp functions for creating and removing buffer-local variables. */ |
1825 | ||
ab795c65 GM |
1826 | /* Obsolete since 22.2. NB adjust doc of modify-frame-parameters |
1827 | when/if this is removed. */ | |
1828 | ||
b0c2d1c6 | 1829 | DEFUN ("make-variable-frame-local", Fmake_variable_frame_local, Smake_variable_frame_local, |
8c1a1077 PJ |
1830 | 1, 1, "vMake Variable Frame Local: ", |
1831 | doc: /* Enable VARIABLE to have frame-local bindings. | |
4d4d36b1 RS |
1832 | This does not create any frame-local bindings for VARIABLE, |
1833 | it just makes them possible. | |
1834 | ||
1835 | A frame-local binding is actually a frame parameter value. | |
1836 | If a frame F has a value for the frame parameter named VARIABLE, | |
1837 | that also acts as a frame-local binding for VARIABLE in F-- | |
1838 | provided this function has been called to enable VARIABLE | |
1839 | to have frame-local bindings at all. | |
1840 | ||
1841 | The only way to create a frame-local binding for VARIABLE in a frame | |
1842 | is to set the VARIABLE frame parameter of that frame. See | |
1843 | `modify-frame-parameters' for how to set frame parameters. | |
1844 | ||
a02a1384 GM |
1845 | Note that since Emacs 23.1, variables cannot be both buffer-local and |
1846 | frame-local any more (buffer-local bindings used to take precedence over | |
1847 | frame-local bindings). */) | |
8c1a1077 | 1848 | (variable) |
b0c2d1c6 RS |
1849 | register Lisp_Object variable; |
1850 | { | |
ce5b453a SM |
1851 | int forwarded; |
1852 | union Lisp_Val_Fwd valcontents; | |
ad97b375 | 1853 | struct Lisp_Symbol *sym; |
ce5b453a | 1854 | struct Lisp_Buffer_Local_Value *blv = NULL; |
b0c2d1c6 | 1855 | |
b7826503 | 1856 | CHECK_SYMBOL (variable); |
ce5b453a | 1857 | sym = XSYMBOL (variable); |
b0c2d1c6 | 1858 | |
ce5b453a SM |
1859 | start: |
1860 | switch (sym->redirect) | |
42e975f0 | 1861 | { |
ce5b453a SM |
1862 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1863 | case SYMBOL_PLAINVAL: | |
1864 | forwarded = 0; valcontents.value = SYMBOL_VAL (sym); | |
1865 | if (EQ (valcontents.value, Qunbound)) | |
1866 | valcontents.value = Qnil; | |
1867 | break; | |
1868 | case SYMBOL_LOCALIZED: | |
1869 | if (SYMBOL_BLV (sym)->frame_local) | |
1870 | return variable; | |
1871 | else | |
1872 | error ("Symbol %s may not be frame-local", | |
1873 | SDATA (SYMBOL_NAME (variable))); | |
1874 | case SYMBOL_FORWARDED: | |
1875 | forwarded = 1; valcontents.fwd = SYMBOL_FWD (sym); | |
1876 | if (KBOARD_OBJFWDP (valcontents.fwd) || BUFFER_OBJFWDP (valcontents.fwd)) | |
1877 | error ("Symbol %s may not be frame-local", | |
1878 | SDATA (SYMBOL_NAME (variable))); | |
1879 | break; | |
1880 | default: abort (); | |
42e975f0 | 1881 | } |
b0c2d1c6 | 1882 | |
ce5b453a SM |
1883 | if (sym->constant) |
1884 | error ("Symbol %s may not be frame-local", SDATA (SYMBOL_NAME (variable))); | |
1885 | ||
1886 | blv = make_blv (sym, forwarded, valcontents); | |
1887 | blv->frame_local = 1; | |
1888 | sym->redirect = SYMBOL_LOCALIZED; | |
1889 | SET_SYMBOL_BLV (sym, blv); | |
8b1e1112 SM |
1890 | { |
1891 | Lisp_Object symbol; | |
1892 | XSETSYMBOL (symbol, sym); /* In case `variable' is aliased. */ | |
1893 | if (let_shadows_global_binding_p (symbol)) | |
1894 | message ("Making %s frame-local while let-bound!", | |
1895 | SDATA (SYMBOL_NAME (variable))); | |
1896 | } | |
b0c2d1c6 RS |
1897 | return variable; |
1898 | } | |
1899 | ||
62476adc | 1900 | DEFUN ("local-variable-p", Flocal_variable_p, Slocal_variable_p, |
8c1a1077 PJ |
1901 | 1, 2, 0, |
1902 | doc: /* Non-nil if VARIABLE has a local binding in buffer BUFFER. | |
1903 | BUFFER defaults to the current buffer. */) | |
1904 | (variable, buffer) | |
d9c2a0f2 | 1905 | register Lisp_Object variable, buffer; |
62476adc | 1906 | { |
c48ead86 | 1907 | register struct buffer *buf; |
ad97b375 | 1908 | struct Lisp_Symbol *sym; |
c48ead86 KH |
1909 | |
1910 | if (NILP (buffer)) | |
1911 | buf = current_buffer; | |
1912 | else | |
1913 | { | |
b7826503 | 1914 | CHECK_BUFFER (buffer); |
c48ead86 KH |
1915 | buf = XBUFFER (buffer); |
1916 | } | |
62476adc | 1917 | |
b7826503 | 1918 | CHECK_SYMBOL (variable); |
ce5b453a | 1919 | sym = XSYMBOL (variable); |
be95bee9 | 1920 | |
ce5b453a SM |
1921 | start: |
1922 | switch (sym->redirect) | |
c48ead86 | 1923 | { |
ce5b453a SM |
1924 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1925 | case SYMBOL_PLAINVAL: return Qnil; | |
1926 | case SYMBOL_LOCALIZED: | |
1927 | { | |
1928 | Lisp_Object tail, elt, tmp; | |
1929 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
1930 | XSETBUFFER (tmp, buf); | |
aa3830c4 | 1931 | |
ce5b453a SM |
1932 | for (tail = buf->local_var_alist; CONSP (tail); tail = XCDR (tail)) |
1933 | { | |
1934 | elt = XCAR (tail); | |
1935 | if (EQ (variable, XCAR (elt))) | |
1936 | { | |
1937 | eassert (!blv->frame_local); | |
1938 | eassert (BLV_FOUND (blv) || !EQ (blv->where, tmp)); | |
1939 | return Qt; | |
1940 | } | |
1941 | } | |
1942 | eassert (!BLV_FOUND (blv) || !EQ (blv->where, tmp)); | |
1943 | return Qnil; | |
1944 | } | |
1945 | case SYMBOL_FORWARDED: | |
1946 | { | |
1947 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
1948 | if (BUFFER_OBJFWDP (valcontents)) | |
1949 | { | |
1950 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
1951 | int idx = PER_BUFFER_IDX (offset); | |
1952 | if (idx == -1 || PER_BUFFER_VALUE_P (buf, idx)) | |
1953 | return Qt; | |
1954 | } | |
1955 | return Qnil; | |
1956 | } | |
1957 | default: abort (); | |
c48ead86 | 1958 | } |
62476adc | 1959 | } |
f4f04cee RS |
1960 | |
1961 | DEFUN ("local-variable-if-set-p", Flocal_variable_if_set_p, Slocal_variable_if_set_p, | |
8c1a1077 | 1962 | 1, 2, 0, |
1dc5ba01 LT |
1963 | doc: /* Non-nil if VARIABLE will be local in buffer BUFFER when set there. |
1964 | More precisely, this means that setting the variable \(with `set' or`setq'), | |
1965 | while it does not have a `let'-style binding that was made in BUFFER, | |
1966 | will produce a buffer local binding. See Info node | |
1967 | `(elisp)Creating Buffer-Local'. | |
8c1a1077 PJ |
1968 | BUFFER defaults to the current buffer. */) |
1969 | (variable, buffer) | |
d9c2a0f2 | 1970 | register Lisp_Object variable, buffer; |
f4f04cee | 1971 | { |
ad97b375 | 1972 | struct Lisp_Symbol *sym; |
f4f04cee | 1973 | |
b7826503 | 1974 | CHECK_SYMBOL (variable); |
ce5b453a | 1975 | sym = XSYMBOL (variable); |
f4f04cee | 1976 | |
ce5b453a SM |
1977 | start: |
1978 | switch (sym->redirect) | |
f4f04cee | 1979 | { |
ce5b453a SM |
1980 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1981 | case SYMBOL_PLAINVAL: return Qnil; | |
1982 | case SYMBOL_LOCALIZED: | |
1983 | { | |
1984 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
1985 | if (blv->local_if_set) | |
1986 | return Qt; | |
1987 | XSETSYMBOL (variable, sym); /* Update in case of aliasing. */ | |
1988 | return Flocal_variable_p (variable, buffer); | |
1989 | } | |
1990 | case SYMBOL_FORWARDED: | |
1991 | /* All BUFFER_OBJFWD slots become local if they are set. */ | |
1992 | return (BUFFER_OBJFWDP (SYMBOL_FWD (sym)) ? Qt : Qnil); | |
1993 | default: abort (); | |
f4f04cee | 1994 | } |
f4f04cee | 1995 | } |
6b61353c KH |
1996 | |
1997 | DEFUN ("variable-binding-locus", Fvariable_binding_locus, Svariable_binding_locus, | |
1998 | 1, 1, 0, | |
1999 | doc: /* Return a value indicating where VARIABLE's current binding comes from. | |
2000 | If the current binding is buffer-local, the value is the current buffer. | |
2001 | If the current binding is frame-local, the value is the selected frame. | |
2002 | If the current binding is global (the default), the value is nil. */) | |
2003 | (variable) | |
2004 | register Lisp_Object variable; | |
2005 | { | |
ad97b375 | 2006 | struct Lisp_Symbol *sym; |
6b61353c KH |
2007 | |
2008 | CHECK_SYMBOL (variable); | |
ce5b453a | 2009 | sym = XSYMBOL (variable); |
6b61353c KH |
2010 | |
2011 | /* Make sure the current binding is actually swapped in. */ | |
2012 | find_symbol_value (variable); | |
2013 | ||
ce5b453a SM |
2014 | start: |
2015 | switch (sym->redirect) | |
6b61353c | 2016 | { |
ce5b453a SM |
2017 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
2018 | case SYMBOL_PLAINVAL: return Qnil; | |
2019 | case SYMBOL_FORWARDED: | |
2020 | { | |
2021 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
2022 | if (KBOARD_OBJFWDP (valcontents)) | |
2023 | return Fframe_terminal (Fselected_frame ()); | |
2024 | else if (!BUFFER_OBJFWDP (valcontents)) | |
2025 | return Qnil; | |
2026 | } | |
2027 | /* FALLTHROUGH */ | |
2028 | case SYMBOL_LOCALIZED: | |
6b61353c KH |
2029 | /* For a local variable, record both the symbol and which |
2030 | buffer's or frame's value we are saving. */ | |
2031 | if (!NILP (Flocal_variable_p (variable, Qnil))) | |
2032 | return Fcurrent_buffer (); | |
ce5b453a SM |
2033 | else if (sym->redirect == SYMBOL_LOCALIZED |
2034 | && BLV_FOUND (SYMBOL_BLV (sym))) | |
2035 | return SYMBOL_BLV (sym)->where; | |
2036 | else | |
2037 | return Qnil; | |
2038 | default: abort (); | |
6b61353c | 2039 | } |
6b61353c | 2040 | } |
2a42d440 | 2041 | |
c40bb1ba KL |
2042 | /* This code is disabled now that we use the selected frame to return |
2043 | keyboard-local-values. */ | |
2044 | #if 0 | |
f57e2426 | 2045 | extern struct terminal *get_terminal (Lisp_Object display, int); |
2a42d440 KL |
2046 | |
2047 | DEFUN ("terminal-local-value", Fterminal_local_value, Sterminal_local_value, 2, 2, 0, | |
6ed8eeff | 2048 | doc: /* Return the terminal-local value of SYMBOL on TERMINAL. |
2a42d440 KL |
2049 | If SYMBOL is not a terminal-local variable, then return its normal |
2050 | value, like `symbol-value'. | |
2051 | ||
708e05dc | 2052 | TERMINAL may be a terminal object, a frame, or nil (meaning the |
6ed8eeff KL |
2053 | selected frame's terminal device). */) |
2054 | (symbol, terminal) | |
2a42d440 | 2055 | Lisp_Object symbol; |
6ed8eeff | 2056 | Lisp_Object terminal; |
2a42d440 KL |
2057 | { |
2058 | Lisp_Object result; | |
6ed8eeff KL |
2059 | struct terminal *t = get_terminal (terminal, 1); |
2060 | push_kboard (t->kboard); | |
2a42d440 | 2061 | result = Fsymbol_value (symbol); |
256c9c3a | 2062 | pop_kboard (); |
2a42d440 KL |
2063 | return result; |
2064 | } | |
2065 | ||
2066 | DEFUN ("set-terminal-local-value", Fset_terminal_local_value, Sset_terminal_local_value, 3, 3, 0, | |
6ed8eeff | 2067 | doc: /* Set the terminal-local binding of SYMBOL on TERMINAL to VALUE. |
2a42d440 | 2068 | If VARIABLE is not a terminal-local variable, then set its normal |
7e59217d KL |
2069 | binding, like `set'. |
2070 | ||
708e05dc | 2071 | TERMINAL may be a terminal object, a frame, or nil (meaning the |
6ed8eeff KL |
2072 | selected frame's terminal device). */) |
2073 | (symbol, terminal, value) | |
2a42d440 | 2074 | Lisp_Object symbol; |
6ed8eeff | 2075 | Lisp_Object terminal; |
2a42d440 KL |
2076 | Lisp_Object value; |
2077 | { | |
2078 | Lisp_Object result; | |
6ed8eeff | 2079 | struct terminal *t = get_terminal (terminal, 1); |
256c9c3a | 2080 | push_kboard (d->kboard); |
2a42d440 | 2081 | result = Fset (symbol, value); |
256c9c3a | 2082 | pop_kboard (); |
2a42d440 KL |
2083 | return result; |
2084 | } | |
c40bb1ba | 2085 | #endif |
7921925c | 2086 | \f |
ffd56f97 JB |
2087 | /* Find the function at the end of a chain of symbol function indirections. */ |
2088 | ||
2089 | /* If OBJECT is a symbol, find the end of its function chain and | |
2090 | return the value found there. If OBJECT is not a symbol, just | |
2091 | return it. If there is a cycle in the function chain, signal a | |
2092 | cyclic-function-indirection error. | |
2093 | ||
2094 | This is like Findirect_function, except that it doesn't signal an | |
2095 | error if the chain ends up unbound. */ | |
2096 | Lisp_Object | |
971de7fb | 2097 | indirect_function (register Lisp_Object object) |
ffd56f97 | 2098 | { |
eb8c3be9 | 2099 | Lisp_Object tortoise, hare; |
ffd56f97 | 2100 | |
eb8c3be9 | 2101 | hare = tortoise = object; |
ffd56f97 JB |
2102 | |
2103 | for (;;) | |
2104 | { | |
e9ebc175 | 2105 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
2106 | break; |
2107 | hare = XSYMBOL (hare)->function; | |
e9ebc175 | 2108 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
2109 | break; |
2110 | hare = XSYMBOL (hare)->function; | |
2111 | ||
eb8c3be9 | 2112 | tortoise = XSYMBOL (tortoise)->function; |
ffd56f97 | 2113 | |
eb8c3be9 | 2114 | if (EQ (hare, tortoise)) |
740ef0b5 | 2115 | xsignal1 (Qcyclic_function_indirection, object); |
ffd56f97 JB |
2116 | } |
2117 | ||
2118 | return hare; | |
2119 | } | |
2120 | ||
a7f96a35 | 2121 | DEFUN ("indirect-function", Findirect_function, Sindirect_function, 1, 2, 0, |
8c1a1077 | 2122 | doc: /* Return the function at the end of OBJECT's function chain. |
0ddb0ae8 TTN |
2123 | If OBJECT is not a symbol, just return it. Otherwise, follow all |
2124 | function indirections to find the final function binding and return it. | |
2125 | If the final symbol in the chain is unbound, signal a void-function error. | |
2126 | Optional arg NOERROR non-nil means to return nil instead of signalling. | |
8c1a1077 PJ |
2127 | Signal a cyclic-function-indirection error if there is a loop in the |
2128 | function chain of symbols. */) | |
0ddb0ae8 | 2129 | (object, noerror) |
8c1a1077 | 2130 | register Lisp_Object object; |
0ddb0ae8 | 2131 | Lisp_Object noerror; |
ffd56f97 JB |
2132 | { |
2133 | Lisp_Object result; | |
2134 | ||
64de53d8 KS |
2135 | /* Optimize for no indirection. */ |
2136 | result = object; | |
2137 | if (SYMBOLP (result) && !EQ (result, Qunbound) | |
2138 | && (result = XSYMBOL (result)->function, SYMBOLP (result))) | |
2139 | result = indirect_function (result); | |
2140 | if (!EQ (result, Qunbound)) | |
2141 | return result; | |
ffd56f97 | 2142 | |
64de53d8 | 2143 | if (NILP (noerror)) |
740ef0b5 | 2144 | xsignal1 (Qvoid_function, object); |
ffd56f97 | 2145 | |
64de53d8 | 2146 | return Qnil; |
ffd56f97 JB |
2147 | } |
2148 | \f | |
7921925c JB |
2149 | /* Extract and set vector and string elements */ |
2150 | ||
2151 | DEFUN ("aref", Faref, Saref, 2, 2, 0, | |
8c1a1077 PJ |
2152 | doc: /* Return the element of ARRAY at index IDX. |
2153 | ARRAY may be a vector, a string, a char-table, a bool-vector, | |
2154 | or a byte-code object. IDX starts at 0. */) | |
2155 | (array, idx) | |
7921925c JB |
2156 | register Lisp_Object array; |
2157 | Lisp_Object idx; | |
2158 | { | |
2159 | register int idxval; | |
2160 | ||
b7826503 | 2161 | CHECK_NUMBER (idx); |
7921925c | 2162 | idxval = XINT (idx); |
e9ebc175 | 2163 | if (STRINGP (array)) |
7921925c | 2164 | { |
25638b07 RS |
2165 | int c, idxval_byte; |
2166 | ||
d5db4077 | 2167 | if (idxval < 0 || idxval >= SCHARS (array)) |
c24e4efe | 2168 | args_out_of_range (array, idx); |
25638b07 | 2169 | if (! STRING_MULTIBYTE (array)) |
d5db4077 | 2170 | return make_number ((unsigned char) SREF (array, idxval)); |
25638b07 RS |
2171 | idxval_byte = string_char_to_byte (array, idxval); |
2172 | ||
62a6e103 | 2173 | c = STRING_CHAR (SDATA (array) + idxval_byte); |
25638b07 | 2174 | return make_number (c); |
7921925c | 2175 | } |
4d276982 RS |
2176 | else if (BOOL_VECTOR_P (array)) |
2177 | { | |
2178 | int val; | |
4d276982 RS |
2179 | |
2180 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
2181 | args_out_of_range (array, idx); | |
2182 | ||
b9ed2177 AS |
2183 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR]; |
2184 | return (val & (1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR)) ? Qt : Qnil); | |
4d276982 RS |
2185 | } |
2186 | else if (CHAR_TABLE_P (array)) | |
2187 | { | |
e6e1f521 KH |
2188 | CHECK_CHARACTER (idx); |
2189 | return CHAR_TABLE_REF (array, idxval); | |
4d276982 | 2190 | } |
7921925c | 2191 | else |
c24e4efe | 2192 | { |
6bbd7a29 | 2193 | int size = 0; |
7f358972 RS |
2194 | if (VECTORP (array)) |
2195 | size = XVECTOR (array)->size; | |
2196 | else if (COMPILEDP (array)) | |
2197 | size = XVECTOR (array)->size & PSEUDOVECTOR_SIZE_MASK; | |
2198 | else | |
2199 | wrong_type_argument (Qarrayp, array); | |
2200 | ||
2201 | if (idxval < 0 || idxval >= size) | |
c24e4efe KH |
2202 | args_out_of_range (array, idx); |
2203 | return XVECTOR (array)->contents[idxval]; | |
2204 | } | |
7921925c JB |
2205 | } |
2206 | ||
2207 | DEFUN ("aset", Faset, Saset, 3, 3, 0, | |
8c1a1077 | 2208 | doc: /* Store into the element of ARRAY at index IDX the value NEWELT. |
bfb96cb7 FP |
2209 | Return NEWELT. ARRAY may be a vector, a string, a char-table or a |
2210 | bool-vector. IDX starts at 0. */) | |
8c1a1077 | 2211 | (array, idx, newelt) |
7921925c JB |
2212 | register Lisp_Object array; |
2213 | Lisp_Object idx, newelt; | |
2214 | { | |
2215 | register int idxval; | |
2216 | ||
b7826503 | 2217 | CHECK_NUMBER (idx); |
7921925c | 2218 | idxval = XINT (idx); |
0c64a8cd | 2219 | CHECK_ARRAY (array, Qarrayp); |
7921925c JB |
2220 | CHECK_IMPURE (array); |
2221 | ||
e9ebc175 | 2222 | if (VECTORP (array)) |
c24e4efe KH |
2223 | { |
2224 | if (idxval < 0 || idxval >= XVECTOR (array)->size) | |
2225 | args_out_of_range (array, idx); | |
2226 | XVECTOR (array)->contents[idxval] = newelt; | |
2227 | } | |
4d276982 RS |
2228 | else if (BOOL_VECTOR_P (array)) |
2229 | { | |
2230 | int val; | |
4d276982 RS |
2231 | |
2232 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
2233 | args_out_of_range (array, idx); | |
2234 | ||
b9ed2177 | 2235 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR]; |
4d276982 RS |
2236 | |
2237 | if (! NILP (newelt)) | |
b9ed2177 | 2238 | val |= 1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR); |
4d276982 | 2239 | else |
b9ed2177 AS |
2240 | val &= ~(1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR)); |
2241 | XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR] = val; | |
4d276982 RS |
2242 | } |
2243 | else if (CHAR_TABLE_P (array)) | |
2244 | { | |
e6e1f521 KH |
2245 | CHECK_CHARACTER (idx); |
2246 | CHAR_TABLE_SET (array, idxval, newelt); | |
4d276982 | 2247 | } |
25638b07 RS |
2248 | else if (STRING_MULTIBYTE (array)) |
2249 | { | |
c6464167 | 2250 | int idxval_byte, prev_bytes, new_bytes, nbytes; |
3c9de1af | 2251 | unsigned char workbuf[MAX_MULTIBYTE_LENGTH], *p0 = workbuf, *p1; |
25638b07 | 2252 | |
d5db4077 | 2253 | if (idxval < 0 || idxval >= SCHARS (array)) |
25638b07 | 2254 | args_out_of_range (array, idx); |
d9130605 | 2255 | CHECK_CHARACTER (newelt); |
25638b07 | 2256 | |
c6464167 MB |
2257 | nbytes = SBYTES (array); |
2258 | ||
25638b07 | 2259 | idxval_byte = string_char_to_byte (array, idxval); |
29f44a37 | 2260 | p1 = SDATA (array) + idxval_byte; |
aa3830c4 | 2261 | prev_bytes = BYTES_BY_CHAR_HEAD (*p1); |
3c9de1af KH |
2262 | new_bytes = CHAR_STRING (XINT (newelt), p0); |
2263 | if (prev_bytes != new_bytes) | |
2264 | { | |
2265 | /* We must relocate the string data. */ | |
d5db4077 | 2266 | int nchars = SCHARS (array); |
3c9de1af | 2267 | unsigned char *str; |
f1a87317 | 2268 | USE_SAFE_ALLOCA; |
3c9de1af | 2269 | |
f1a87317 | 2270 | SAFE_ALLOCA (str, unsigned char *, nbytes); |
d5db4077 | 2271 | bcopy (SDATA (array), str, nbytes); |
3c9de1af KH |
2272 | allocate_string_data (XSTRING (array), nchars, |
2273 | nbytes + new_bytes - prev_bytes); | |
d5db4077 KR |
2274 | bcopy (str, SDATA (array), idxval_byte); |
2275 | p1 = SDATA (array) + idxval_byte; | |
3c9de1af KH |
2276 | bcopy (str + idxval_byte + prev_bytes, p1 + new_bytes, |
2277 | nbytes - (idxval_byte + prev_bytes)); | |
233f3db6 | 2278 | SAFE_FREE (); |
3c9de1af KH |
2279 | clear_string_char_byte_cache (); |
2280 | } | |
2281 | while (new_bytes--) | |
2282 | *p1++ = *p0++; | |
25638b07 | 2283 | } |
7921925c JB |
2284 | else |
2285 | { | |
d5db4077 | 2286 | if (idxval < 0 || idxval >= SCHARS (array)) |
c24e4efe | 2287 | args_out_of_range (array, idx); |
b7826503 | 2288 | CHECK_NUMBER (newelt); |
3c9de1af | 2289 | |
476e47ca | 2290 | if (XINT (newelt) >= 0 && ! SINGLE_BYTE_CHAR_P (XINT (newelt))) |
5dff5999 KH |
2291 | { |
2292 | int i; | |
2293 | ||
2294 | for (i = SBYTES (array) - 1; i >= 0; i--) | |
2295 | if (SREF (array, i) >= 0x80) | |
2296 | args_out_of_range (array, newelt); | |
2297 | /* ARRAY is an ASCII string. Convert it to a multibyte | |
2298 | string, and try `aset' again. */ | |
2299 | STRING_SET_MULTIBYTE (array); | |
2300 | return Faset (array, idx, newelt); | |
2301 | } | |
476e47ca | 2302 | SSET (array, idxval, XINT (newelt)); |
7921925c JB |
2303 | } |
2304 | ||
2305 | return newelt; | |
2306 | } | |
7921925c JB |
2307 | \f |
2308 | /* Arithmetic functions */ | |
2309 | ||
2310 | enum comparison { equal, notequal, less, grtr, less_or_equal, grtr_or_equal }; | |
2311 | ||
2312 | Lisp_Object | |
971de7fb | 2313 | arithcompare (Lisp_Object num1, Lisp_Object num2, enum comparison comparison) |
7921925c | 2314 | { |
6bbd7a29 | 2315 | double f1 = 0, f2 = 0; |
7921925c JB |
2316 | int floatp = 0; |
2317 | ||
b7826503 PJ |
2318 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1); |
2319 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2); | |
7921925c | 2320 | |
e9ebc175 | 2321 | if (FLOATP (num1) || FLOATP (num2)) |
7921925c JB |
2322 | { |
2323 | floatp = 1; | |
7539e11f KR |
2324 | f1 = (FLOATP (num1)) ? XFLOAT_DATA (num1) : XINT (num1); |
2325 | f2 = (FLOATP (num2)) ? XFLOAT_DATA (num2) : XINT (num2); | |
7921925c | 2326 | } |
7921925c JB |
2327 | |
2328 | switch (comparison) | |
2329 | { | |
2330 | case equal: | |
2331 | if (floatp ? f1 == f2 : XINT (num1) == XINT (num2)) | |
2332 | return Qt; | |
2333 | return Qnil; | |
2334 | ||
2335 | case notequal: | |
2336 | if (floatp ? f1 != f2 : XINT (num1) != XINT (num2)) | |
2337 | return Qt; | |
2338 | return Qnil; | |
2339 | ||
2340 | case less: | |
2341 | if (floatp ? f1 < f2 : XINT (num1) < XINT (num2)) | |
2342 | return Qt; | |
2343 | return Qnil; | |
2344 | ||
2345 | case less_or_equal: | |
2346 | if (floatp ? f1 <= f2 : XINT (num1) <= XINT (num2)) | |
2347 | return Qt; | |
2348 | return Qnil; | |
2349 | ||
2350 | case grtr: | |
2351 | if (floatp ? f1 > f2 : XINT (num1) > XINT (num2)) | |
2352 | return Qt; | |
2353 | return Qnil; | |
2354 | ||
2355 | case grtr_or_equal: | |
2356 | if (floatp ? f1 >= f2 : XINT (num1) >= XINT (num2)) | |
2357 | return Qt; | |
2358 | return Qnil; | |
25e40a4b JB |
2359 | |
2360 | default: | |
2361 | abort (); | |
7921925c JB |
2362 | } |
2363 | } | |
2364 | ||
2365 | DEFUN ("=", Feqlsign, Seqlsign, 2, 2, 0, | |
8c1a1077 PJ |
2366 | doc: /* Return t if two args, both numbers or markers, are equal. */) |
2367 | (num1, num2) | |
7921925c JB |
2368 | register Lisp_Object num1, num2; |
2369 | { | |
2370 | return arithcompare (num1, num2, equal); | |
2371 | } | |
2372 | ||
2373 | DEFUN ("<", Flss, Slss, 2, 2, 0, | |
8c1a1077 PJ |
2374 | doc: /* Return t if first arg is less than second arg. Both must be numbers or markers. */) |
2375 | (num1, num2) | |
7921925c JB |
2376 | register Lisp_Object num1, num2; |
2377 | { | |
2378 | return arithcompare (num1, num2, less); | |
2379 | } | |
2380 | ||
2381 | DEFUN (">", Fgtr, Sgtr, 2, 2, 0, | |
8c1a1077 PJ |
2382 | doc: /* Return t if first arg is greater than second arg. Both must be numbers or markers. */) |
2383 | (num1, num2) | |
7921925c JB |
2384 | register Lisp_Object num1, num2; |
2385 | { | |
2386 | return arithcompare (num1, num2, grtr); | |
2387 | } | |
2388 | ||
2389 | DEFUN ("<=", Fleq, Sleq, 2, 2, 0, | |
8c1a1077 PJ |
2390 | doc: /* Return t if first arg is less than or equal to second arg. |
2391 | Both must be numbers or markers. */) | |
2392 | (num1, num2) | |
7921925c JB |
2393 | register Lisp_Object num1, num2; |
2394 | { | |
2395 | return arithcompare (num1, num2, less_or_equal); | |
2396 | } | |
2397 | ||
2398 | DEFUN (">=", Fgeq, Sgeq, 2, 2, 0, | |
8c1a1077 PJ |
2399 | doc: /* Return t if first arg is greater than or equal to second arg. |
2400 | Both must be numbers or markers. */) | |
2401 | (num1, num2) | |
7921925c JB |
2402 | register Lisp_Object num1, num2; |
2403 | { | |
2404 | return arithcompare (num1, num2, grtr_or_equal); | |
2405 | } | |
2406 | ||
2407 | DEFUN ("/=", Fneq, Sneq, 2, 2, 0, | |
8c1a1077 PJ |
2408 | doc: /* Return t if first arg is not equal to second arg. Both must be numbers or markers. */) |
2409 | (num1, num2) | |
7921925c JB |
2410 | register Lisp_Object num1, num2; |
2411 | { | |
2412 | return arithcompare (num1, num2, notequal); | |
2413 | } | |
2414 | ||
8c1a1077 PJ |
2415 | DEFUN ("zerop", Fzerop, Szerop, 1, 1, 0, |
2416 | doc: /* Return t if NUMBER is zero. */) | |
2417 | (number) | |
d9c2a0f2 | 2418 | register Lisp_Object number; |
7921925c | 2419 | { |
b7826503 | 2420 | CHECK_NUMBER_OR_FLOAT (number); |
7921925c | 2421 | |
d9c2a0f2 | 2422 | if (FLOATP (number)) |
7921925c | 2423 | { |
7539e11f | 2424 | if (XFLOAT_DATA (number) == 0.0) |
7921925c JB |
2425 | return Qt; |
2426 | return Qnil; | |
2427 | } | |
7921925c | 2428 | |
d9c2a0f2 | 2429 | if (!XINT (number)) |
7921925c JB |
2430 | return Qt; |
2431 | return Qnil; | |
2432 | } | |
2433 | \f | |
70e9f399 RS |
2434 | /* Convert between long values and pairs of Lisp integers. |
2435 | Note that long_to_cons returns a single Lisp integer | |
2436 | when the value fits in one. */ | |
51cf3e31 JB |
2437 | |
2438 | Lisp_Object | |
971de7fb | 2439 | long_to_cons (long unsigned int i) |
51cf3e31 | 2440 | { |
9bc7166b | 2441 | unsigned long top = i >> 16; |
51cf3e31 JB |
2442 | unsigned int bot = i & 0xFFFF; |
2443 | if (top == 0) | |
2444 | return make_number (bot); | |
b42cfa11 | 2445 | if (top == (unsigned long)-1 >> 16) |
51cf3e31 JB |
2446 | return Fcons (make_number (-1), make_number (bot)); |
2447 | return Fcons (make_number (top), make_number (bot)); | |
2448 | } | |
2449 | ||
2450 | unsigned long | |
971de7fb | 2451 | cons_to_long (Lisp_Object c) |
51cf3e31 | 2452 | { |
878a80cc | 2453 | Lisp_Object top, bot; |
51cf3e31 JB |
2454 | if (INTEGERP (c)) |
2455 | return XINT (c); | |
7539e11f KR |
2456 | top = XCAR (c); |
2457 | bot = XCDR (c); | |
51cf3e31 | 2458 | if (CONSP (bot)) |
7539e11f | 2459 | bot = XCAR (bot); |
51cf3e31 JB |
2460 | return ((XINT (top) << 16) | XINT (bot)); |
2461 | } | |
2462 | \f | |
f2980264 | 2463 | DEFUN ("number-to-string", Fnumber_to_string, Snumber_to_string, 1, 1, 0, |
bfb96cb7 | 2464 | doc: /* Return the decimal representation of NUMBER as a string. |
8c1a1077 PJ |
2465 | Uses a minus sign if negative. |
2466 | NUMBER may be an integer or a floating point number. */) | |
2467 | (number) | |
d9c2a0f2 | 2468 | Lisp_Object number; |
7921925c | 2469 | { |
6030ce64 | 2470 | char buffer[VALBITS]; |
7921925c | 2471 | |
b7826503 | 2472 | CHECK_NUMBER_OR_FLOAT (number); |
7921925c | 2473 | |
d9c2a0f2 | 2474 | if (FLOATP (number)) |
7921925c JB |
2475 | { |
2476 | char pigbuf[350]; /* see comments in float_to_string */ | |
2477 | ||
7539e11f | 2478 | float_to_string (pigbuf, XFLOAT_DATA (number)); |
7403b5c8 | 2479 | return build_string (pigbuf); |
7921925c | 2480 | } |
7921925c | 2481 | |
e6c82a8d | 2482 | if (sizeof (int) == sizeof (EMACS_INT)) |
dfa3bb7a | 2483 | sprintf (buffer, "%d", (int) XINT (number)); |
e6c82a8d | 2484 | else if (sizeof (long) == sizeof (EMACS_INT)) |
dd8daec5 | 2485 | sprintf (buffer, "%ld", (long) XINT (number)); |
e6c82a8d RS |
2486 | else |
2487 | abort (); | |
7921925c JB |
2488 | return build_string (buffer); |
2489 | } | |
2490 | ||
3883fbeb | 2491 | INLINE static int |
971de7fb | 2492 | digit_to_number (int character, int base) |
3883fbeb RS |
2493 | { |
2494 | int digit; | |
2495 | ||
2496 | if (character >= '0' && character <= '9') | |
2497 | digit = character - '0'; | |
2498 | else if (character >= 'a' && character <= 'z') | |
2499 | digit = character - 'a' + 10; | |
2500 | else if (character >= 'A' && character <= 'Z') | |
2501 | digit = character - 'A' + 10; | |
2502 | else | |
2503 | return -1; | |
2504 | ||
2505 | if (digit >= base) | |
2506 | return -1; | |
2507 | else | |
2508 | return digit; | |
bfb96cb7 | 2509 | } |
3883fbeb RS |
2510 | |
2511 | DEFUN ("string-to-number", Fstring_to_number, Sstring_to_number, 1, 2, 0, | |
558ee900 | 2512 | doc: /* Parse STRING as a decimal number and return the number. |
8c1a1077 | 2513 | This parses both integers and floating point numbers. |
be95bee9 | 2514 | It ignores leading spaces and tabs, and all trailing chars. |
8c1a1077 PJ |
2515 | |
2516 | If BASE, interpret STRING as a number in that base. If BASE isn't | |
2517 | present, base 10 is used. BASE must be between 2 and 16 (inclusive). | |
be95bee9 | 2518 | If the base used is not 10, STRING is always parsed as integer. */) |
8c1a1077 | 2519 | (string, base) |
3883fbeb | 2520 | register Lisp_Object string, base; |
7921925c | 2521 | { |
3883fbeb | 2522 | register unsigned char *p; |
342858a5 GM |
2523 | register int b; |
2524 | int sign = 1; | |
2525 | Lisp_Object val; | |
25e40a4b | 2526 | |
b7826503 | 2527 | CHECK_STRING (string); |
7921925c | 2528 | |
3883fbeb RS |
2529 | if (NILP (base)) |
2530 | b = 10; | |
2531 | else | |
2532 | { | |
b7826503 | 2533 | CHECK_NUMBER (base); |
3883fbeb RS |
2534 | b = XINT (base); |
2535 | if (b < 2 || b > 16) | |
740ef0b5 | 2536 | xsignal1 (Qargs_out_of_range, base); |
3883fbeb RS |
2537 | } |
2538 | ||
25e40a4b JB |
2539 | /* Skip any whitespace at the front of the number. Some versions of |
2540 | atoi do this anyway, so we might as well make Emacs lisp consistent. */ | |
d5db4077 | 2541 | p = SDATA (string); |
0a3e4d65 | 2542 | while (*p == ' ' || *p == '\t') |
25e40a4b JB |
2543 | p++; |
2544 | ||
3883fbeb RS |
2545 | if (*p == '-') |
2546 | { | |
342858a5 | 2547 | sign = -1; |
3883fbeb RS |
2548 | p++; |
2549 | } | |
2550 | else if (*p == '+') | |
2551 | p++; | |
bfb96cb7 | 2552 | |
be95bee9 | 2553 | if (isfloat_string (p, 1) && b == 10) |
342858a5 GM |
2554 | val = make_float (sign * atof (p)); |
2555 | else | |
3883fbeb | 2556 | { |
342858a5 GM |
2557 | double v = 0; |
2558 | ||
2559 | while (1) | |
2560 | { | |
2561 | int digit = digit_to_number (*p++, b); | |
2562 | if (digit < 0) | |
2563 | break; | |
2564 | v = v * b + digit; | |
2565 | } | |
2566 | ||
cb938d46 | 2567 | val = make_fixnum_or_float (sign * v); |
3883fbeb | 2568 | } |
342858a5 GM |
2569 | |
2570 | return val; | |
7921925c | 2571 | } |
3883fbeb | 2572 | |
7403b5c8 | 2573 | \f |
7921925c | 2574 | enum arithop |
7a283f36 GM |
2575 | { |
2576 | Aadd, | |
2577 | Asub, | |
2578 | Amult, | |
2579 | Adiv, | |
2580 | Alogand, | |
2581 | Alogior, | |
2582 | Alogxor, | |
2583 | Amax, | |
2584 | Amin | |
2585 | }; | |
2586 | ||
f57e2426 J |
2587 | static Lisp_Object float_arith_driver (double, int, enum arithop, |
2588 | int, Lisp_Object *); | |
ad8d56b9 | 2589 | extern Lisp_Object fmod_float (); |
b06faa91 | 2590 | |
7921925c | 2591 | Lisp_Object |
971de7fb | 2592 | arith_driver (enum arithop code, int nargs, register Lisp_Object *args) |
7921925c JB |
2593 | { |
2594 | register Lisp_Object val; | |
2595 | register int argnum; | |
7a283f36 | 2596 | register EMACS_INT accum = 0; |
5260234d | 2597 | register EMACS_INT next; |
7921925c | 2598 | |
0220c518 | 2599 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2600 | { |
2601 | case Alogior: | |
2602 | case Alogxor: | |
2603 | case Aadd: | |
2604 | case Asub: | |
7a283f36 GM |
2605 | accum = 0; |
2606 | break; | |
7921925c | 2607 | case Amult: |
7a283f36 GM |
2608 | accum = 1; |
2609 | break; | |
7921925c | 2610 | case Alogand: |
7a283f36 GM |
2611 | accum = -1; |
2612 | break; | |
2613 | default: | |
2614 | break; | |
7921925c JB |
2615 | } |
2616 | ||
2617 | for (argnum = 0; argnum < nargs; argnum++) | |
2618 | { | |
7a283f36 GM |
2619 | /* Using args[argnum] as argument to CHECK_NUMBER_... */ |
2620 | val = args[argnum]; | |
b7826503 | 2621 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val); |
7921925c | 2622 | |
7a283f36 GM |
2623 | if (FLOATP (val)) |
2624 | return float_arith_driver ((double) accum, argnum, code, | |
2625 | nargs, args); | |
2626 | args[argnum] = val; | |
7921925c | 2627 | next = XINT (args[argnum]); |
0220c518 | 2628 | switch (SWITCH_ENUM_CAST (code)) |
7921925c | 2629 | { |
7a283f36 GM |
2630 | case Aadd: |
2631 | accum += next; | |
2632 | break; | |
7921925c | 2633 | case Asub: |
e64981da | 2634 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c | 2635 | break; |
7a283f36 GM |
2636 | case Amult: |
2637 | accum *= next; | |
2638 | break; | |
7921925c | 2639 | case Adiv: |
7a283f36 GM |
2640 | if (!argnum) |
2641 | accum = next; | |
87fbf902 RS |
2642 | else |
2643 | { | |
2644 | if (next == 0) | |
740ef0b5 | 2645 | xsignal0 (Qarith_error); |
87fbf902 RS |
2646 | accum /= next; |
2647 | } | |
7921925c | 2648 | break; |
7a283f36 GM |
2649 | case Alogand: |
2650 | accum &= next; | |
2651 | break; | |
2652 | case Alogior: | |
2653 | accum |= next; | |
2654 | break; | |
2655 | case Alogxor: | |
2656 | accum ^= next; | |
2657 | break; | |
2658 | case Amax: | |
2659 | if (!argnum || next > accum) | |
2660 | accum = next; | |
2661 | break; | |
2662 | case Amin: | |
2663 | if (!argnum || next < accum) | |
2664 | accum = next; | |
2665 | break; | |
7921925c JB |
2666 | } |
2667 | } | |
2668 | ||
f187f1f7 | 2669 | XSETINT (val, accum); |
7921925c JB |
2670 | return val; |
2671 | } | |
2672 | ||
1a2f2d33 KH |
2673 | #undef isnan |
2674 | #define isnan(x) ((x) != (x)) | |
2675 | ||
7a283f36 | 2676 | static Lisp_Object |
971de7fb | 2677 | float_arith_driver (double accum, register int argnum, enum arithop code, int nargs, register Lisp_Object *args) |
7921925c JB |
2678 | { |
2679 | register Lisp_Object val; | |
2680 | double next; | |
7403b5c8 | 2681 | |
7921925c JB |
2682 | for (; argnum < nargs; argnum++) |
2683 | { | |
2684 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ | |
b7826503 | 2685 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val); |
7921925c | 2686 | |
e9ebc175 | 2687 | if (FLOATP (val)) |
7921925c | 2688 | { |
7539e11f | 2689 | next = XFLOAT_DATA (val); |
7921925c JB |
2690 | } |
2691 | else | |
2692 | { | |
2693 | args[argnum] = val; /* runs into a compiler bug. */ | |
2694 | next = XINT (args[argnum]); | |
2695 | } | |
0220c518 | 2696 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2697 | { |
2698 | case Aadd: | |
2699 | accum += next; | |
2700 | break; | |
2701 | case Asub: | |
e64981da | 2702 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c JB |
2703 | break; |
2704 | case Amult: | |
2705 | accum *= next; | |
2706 | break; | |
2707 | case Adiv: | |
2708 | if (!argnum) | |
2709 | accum = next; | |
2710 | else | |
87fbf902 | 2711 | { |
ad8d56b9 | 2712 | if (! IEEE_FLOATING_POINT && next == 0) |
740ef0b5 | 2713 | xsignal0 (Qarith_error); |
87fbf902 RS |
2714 | accum /= next; |
2715 | } | |
7921925c JB |
2716 | break; |
2717 | case Alogand: | |
2718 | case Alogior: | |
2719 | case Alogxor: | |
2720 | return wrong_type_argument (Qinteger_or_marker_p, val); | |
2721 | case Amax: | |
1a2f2d33 | 2722 | if (!argnum || isnan (next) || next > accum) |
7921925c JB |
2723 | accum = next; |
2724 | break; | |
2725 | case Amin: | |
1a2f2d33 | 2726 | if (!argnum || isnan (next) || next < accum) |
7921925c JB |
2727 | accum = next; |
2728 | break; | |
2729 | } | |
2730 | } | |
2731 | ||
2732 | return make_float (accum); | |
2733 | } | |
cc94f3b2 | 2734 | |
7921925c JB |
2735 | |
2736 | DEFUN ("+", Fplus, Splus, 0, MANY, 0, | |
8c1a1077 PJ |
2737 | doc: /* Return sum of any number of arguments, which are numbers or markers. |
2738 | usage: (+ &rest NUMBERS-OR-MARKERS) */) | |
2739 | (nargs, args) | |
7921925c JB |
2740 | int nargs; |
2741 | Lisp_Object *args; | |
2742 | { | |
2743 | return arith_driver (Aadd, nargs, args); | |
2744 | } | |
2745 | ||
2746 | DEFUN ("-", Fminus, Sminus, 0, MANY, 0, | |
558ee900 | 2747 | doc: /* Negate number or subtract numbers or markers and return the result. |
8c1a1077 | 2748 | With one arg, negates it. With more than one arg, |
f44fba9e | 2749 | subtracts all but the first from the first. |
8c1a1077 PJ |
2750 | usage: (- &optional NUMBER-OR-MARKER &rest MORE-NUMBERS-OR-MARKERS) */) |
2751 | (nargs, args) | |
7921925c JB |
2752 | int nargs; |
2753 | Lisp_Object *args; | |
2754 | { | |
2755 | return arith_driver (Asub, nargs, args); | |
2756 | } | |
2757 | ||
2758 | DEFUN ("*", Ftimes, Stimes, 0, MANY, 0, | |
be24eadf | 2759 | doc: /* Return product of any number of arguments, which are numbers or markers. |
8c1a1077 PJ |
2760 | usage: (* &rest NUMBERS-OR-MARKERS) */) |
2761 | (nargs, args) | |
7921925c JB |
2762 | int nargs; |
2763 | Lisp_Object *args; | |
2764 | { | |
2765 | return arith_driver (Amult, nargs, args); | |
2766 | } | |
2767 | ||
2768 | DEFUN ("/", Fquo, Squo, 2, MANY, 0, | |
be24eadf | 2769 | doc: /* Return first argument divided by all the remaining arguments. |
f44fba9e | 2770 | The arguments must be numbers or markers. |
8c1a1077 PJ |
2771 | usage: (/ DIVIDEND DIVISOR &rest DIVISORS) */) |
2772 | (nargs, args) | |
7921925c JB |
2773 | int nargs; |
2774 | Lisp_Object *args; | |
2775 | { | |
28712a21 | 2776 | int argnum; |
7ef98053 | 2777 | for (argnum = 2; argnum < nargs; argnum++) |
28712a21 JB |
2778 | if (FLOATP (args[argnum])) |
2779 | return float_arith_driver (0, 0, Adiv, nargs, args); | |
7921925c JB |
2780 | return arith_driver (Adiv, nargs, args); |
2781 | } | |
2782 | ||
2783 | DEFUN ("%", Frem, Srem, 2, 2, 0, | |
be24eadf | 2784 | doc: /* Return remainder of X divided by Y. |
8c1a1077 PJ |
2785 | Both must be integers or markers. */) |
2786 | (x, y) | |
d9c2a0f2 | 2787 | register Lisp_Object x, y; |
7921925c JB |
2788 | { |
2789 | Lisp_Object val; | |
2790 | ||
b7826503 PJ |
2791 | CHECK_NUMBER_COERCE_MARKER (x); |
2792 | CHECK_NUMBER_COERCE_MARKER (y); | |
7921925c | 2793 | |
d9c2a0f2 | 2794 | if (XFASTINT (y) == 0) |
740ef0b5 | 2795 | xsignal0 (Qarith_error); |
87fbf902 | 2796 | |
d9c2a0f2 | 2797 | XSETINT (val, XINT (x) % XINT (y)); |
7921925c JB |
2798 | return val; |
2799 | } | |
2800 | ||
1d66a5fa KH |
2801 | #ifndef HAVE_FMOD |
2802 | double | |
2803 | fmod (f1, f2) | |
2804 | double f1, f2; | |
2805 | { | |
bc1c9d7e PE |
2806 | double r = f1; |
2807 | ||
fa43b1e8 KH |
2808 | if (f2 < 0.0) |
2809 | f2 = -f2; | |
bc1c9d7e PE |
2810 | |
2811 | /* If the magnitude of the result exceeds that of the divisor, or | |
2812 | the sign of the result does not agree with that of the dividend, | |
2813 | iterate with the reduced value. This does not yield a | |
2814 | particularly accurate result, but at least it will be in the | |
2815 | range promised by fmod. */ | |
2816 | do | |
2817 | r -= f2 * floor (r / f2); | |
2818 | while (f2 <= (r < 0 ? -r : r) || ((r < 0) != (f1 < 0) && ! isnan (r))); | |
2819 | ||
2820 | return r; | |
1d66a5fa KH |
2821 | } |
2822 | #endif /* ! HAVE_FMOD */ | |
2823 | ||
44fa9da5 | 2824 | DEFUN ("mod", Fmod, Smod, 2, 2, 0, |
be24eadf | 2825 | doc: /* Return X modulo Y. |
8c1a1077 PJ |
2826 | The result falls between zero (inclusive) and Y (exclusive). |
2827 | Both X and Y must be numbers or markers. */) | |
2828 | (x, y) | |
d9c2a0f2 | 2829 | register Lisp_Object x, y; |
44fa9da5 PE |
2830 | { |
2831 | Lisp_Object val; | |
5260234d | 2832 | EMACS_INT i1, i2; |
44fa9da5 | 2833 | |
b7826503 PJ |
2834 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (x); |
2835 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (y); | |
44fa9da5 | 2836 | |
d9c2a0f2 | 2837 | if (FLOATP (x) || FLOATP (y)) |
ad8d56b9 PE |
2838 | return fmod_float (x, y); |
2839 | ||
d9c2a0f2 EN |
2840 | i1 = XINT (x); |
2841 | i2 = XINT (y); | |
44fa9da5 PE |
2842 | |
2843 | if (i2 == 0) | |
740ef0b5 | 2844 | xsignal0 (Qarith_error); |
7403b5c8 | 2845 | |
44fa9da5 PE |
2846 | i1 %= i2; |
2847 | ||
2848 | /* If the "remainder" comes out with the wrong sign, fix it. */ | |
04f7ec69 | 2849 | if (i2 < 0 ? i1 > 0 : i1 < 0) |
44fa9da5 PE |
2850 | i1 += i2; |
2851 | ||
f187f1f7 | 2852 | XSETINT (val, i1); |
44fa9da5 PE |
2853 | return val; |
2854 | } | |
2855 | ||
7921925c | 2856 | DEFUN ("max", Fmax, Smax, 1, MANY, 0, |
8c1a1077 | 2857 | doc: /* Return largest of all the arguments (which must be numbers or markers). |
f44fba9e | 2858 | The value is always a number; markers are converted to numbers. |
8c1a1077 PJ |
2859 | usage: (max NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
2860 | (nargs, args) | |
7921925c JB |
2861 | int nargs; |
2862 | Lisp_Object *args; | |
2863 | { | |
2864 | return arith_driver (Amax, nargs, args); | |
2865 | } | |
2866 | ||
2867 | DEFUN ("min", Fmin, Smin, 1, MANY, 0, | |
8c1a1077 | 2868 | doc: /* Return smallest of all the arguments (which must be numbers or markers). |
f44fba9e | 2869 | The value is always a number; markers are converted to numbers. |
8c1a1077 PJ |
2870 | usage: (min NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
2871 | (nargs, args) | |
7921925c JB |
2872 | int nargs; |
2873 | Lisp_Object *args; | |
2874 | { | |
2875 | return arith_driver (Amin, nargs, args); | |
2876 | } | |
2877 | ||
2878 | DEFUN ("logand", Flogand, Slogand, 0, MANY, 0, | |
8c1a1077 | 2879 | doc: /* Return bitwise-and of all the arguments. |
f44fba9e | 2880 | Arguments may be integers, or markers converted to integers. |
8c1a1077 PJ |
2881 | usage: (logand &rest INTS-OR-MARKERS) */) |
2882 | (nargs, args) | |
7921925c JB |
2883 | int nargs; |
2884 | Lisp_Object *args; | |
2885 | { | |
2886 | return arith_driver (Alogand, nargs, args); | |
2887 | } | |
2888 | ||
2889 | DEFUN ("logior", Flogior, Slogior, 0, MANY, 0, | |
8c1a1077 | 2890 | doc: /* Return bitwise-or of all the arguments. |
f44fba9e | 2891 | Arguments may be integers, or markers converted to integers. |
8c1a1077 PJ |
2892 | usage: (logior &rest INTS-OR-MARKERS) */) |
2893 | (nargs, args) | |
7921925c JB |
2894 | int nargs; |
2895 | Lisp_Object *args; | |
2896 | { | |
2897 | return arith_driver (Alogior, nargs, args); | |
2898 | } | |
2899 | ||
2900 | DEFUN ("logxor", Flogxor, Slogxor, 0, MANY, 0, | |
8c1a1077 | 2901 | doc: /* Return bitwise-exclusive-or of all the arguments. |
f44fba9e | 2902 | Arguments may be integers, or markers converted to integers. |
31fb1b2c | 2903 | usage: (logxor &rest INTS-OR-MARKERS) */) |
8c1a1077 | 2904 | (nargs, args) |
7921925c JB |
2905 | int nargs; |
2906 | Lisp_Object *args; | |
2907 | { | |
2908 | return arith_driver (Alogxor, nargs, args); | |
2909 | } | |
2910 | ||
2911 | DEFUN ("ash", Fash, Sash, 2, 2, 0, | |
8c1a1077 PJ |
2912 | doc: /* Return VALUE with its bits shifted left by COUNT. |
2913 | If COUNT is negative, shifting is actually to the right. | |
2914 | In this case, the sign bit is duplicated. */) | |
2915 | (value, count) | |
3b9f7964 | 2916 | register Lisp_Object value, count; |
7921925c JB |
2917 | { |
2918 | register Lisp_Object val; | |
2919 | ||
b7826503 PJ |
2920 | CHECK_NUMBER (value); |
2921 | CHECK_NUMBER (count); | |
7921925c | 2922 | |
81d70626 RS |
2923 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2924 | XSETINT (val, 0); | |
2925 | else if (XINT (count) > 0) | |
3d9652eb | 2926 | XSETINT (val, XINT (value) << XFASTINT (count)); |
81d70626 RS |
2927 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2928 | XSETINT (val, XINT (value) < 0 ? -1 : 0); | |
7921925c | 2929 | else |
3d9652eb | 2930 | XSETINT (val, XINT (value) >> -XINT (count)); |
7921925c JB |
2931 | return val; |
2932 | } | |
2933 | ||
2934 | DEFUN ("lsh", Flsh, Slsh, 2, 2, 0, | |
8c1a1077 PJ |
2935 | doc: /* Return VALUE with its bits shifted left by COUNT. |
2936 | If COUNT is negative, shifting is actually to the right. | |
3a9b1297 | 2937 | In this case, zeros are shifted in on the left. */) |
8c1a1077 | 2938 | (value, count) |
3d9652eb | 2939 | register Lisp_Object value, count; |
7921925c JB |
2940 | { |
2941 | register Lisp_Object val; | |
2942 | ||
b7826503 PJ |
2943 | CHECK_NUMBER (value); |
2944 | CHECK_NUMBER (count); | |
7921925c | 2945 | |
81d70626 RS |
2946 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2947 | XSETINT (val, 0); | |
2948 | else if (XINT (count) > 0) | |
3d9652eb | 2949 | XSETINT (val, (EMACS_UINT) XUINT (value) << XFASTINT (count)); |
81d70626 RS |
2950 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2951 | XSETINT (val, 0); | |
7921925c | 2952 | else |
3d9652eb | 2953 | XSETINT (val, (EMACS_UINT) XUINT (value) >> -XINT (count)); |
7921925c JB |
2954 | return val; |
2955 | } | |
2956 | ||
2957 | DEFUN ("1+", Fadd1, Sadd1, 1, 1, 0, | |
8c1a1077 PJ |
2958 | doc: /* Return NUMBER plus one. NUMBER may be a number or a marker. |
2959 | Markers are converted to integers. */) | |
2960 | (number) | |
d9c2a0f2 | 2961 | register Lisp_Object number; |
7921925c | 2962 | { |
b7826503 | 2963 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number); |
7921925c | 2964 | |
d9c2a0f2 | 2965 | if (FLOATP (number)) |
7539e11f | 2966 | return (make_float (1.0 + XFLOAT_DATA (number))); |
7921925c | 2967 | |
d9c2a0f2 EN |
2968 | XSETINT (number, XINT (number) + 1); |
2969 | return number; | |
7921925c JB |
2970 | } |
2971 | ||
2972 | DEFUN ("1-", Fsub1, Ssub1, 1, 1, 0, | |
8c1a1077 PJ |
2973 | doc: /* Return NUMBER minus one. NUMBER may be a number or a marker. |
2974 | Markers are converted to integers. */) | |
2975 | (number) | |
d9c2a0f2 | 2976 | register Lisp_Object number; |
7921925c | 2977 | { |
b7826503 | 2978 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number); |
7921925c | 2979 | |
d9c2a0f2 | 2980 | if (FLOATP (number)) |
7539e11f | 2981 | return (make_float (-1.0 + XFLOAT_DATA (number))); |
7921925c | 2982 | |
d9c2a0f2 EN |
2983 | XSETINT (number, XINT (number) - 1); |
2984 | return number; | |
7921925c JB |
2985 | } |
2986 | ||
2987 | DEFUN ("lognot", Flognot, Slognot, 1, 1, 0, | |
8c1a1077 PJ |
2988 | doc: /* Return the bitwise complement of NUMBER. NUMBER must be an integer. */) |
2989 | (number) | |
d9c2a0f2 | 2990 | register Lisp_Object number; |
7921925c | 2991 | { |
b7826503 | 2992 | CHECK_NUMBER (number); |
53924017 | 2993 | XSETINT (number, ~XINT (number)); |
d9c2a0f2 | 2994 | return number; |
7921925c | 2995 | } |
6b61353c KH |
2996 | |
2997 | DEFUN ("byteorder", Fbyteorder, Sbyteorder, 0, 0, 0, | |
2998 | doc: /* Return the byteorder for the machine. | |
2999 | Returns 66 (ASCII uppercase B) for big endian machines or 108 (ASCII | |
3000 | lowercase l) for small endian machines. */) | |
3001 | () | |
3002 | { | |
3003 | unsigned i = 0x04030201; | |
3004 | int order = *(char *)&i == 1 ? 108 : 66; | |
3005 | ||
3006 | return make_number (order); | |
3007 | } | |
3008 | ||
3009 | ||
7921925c JB |
3010 | \f |
3011 | void | |
971de7fb | 3012 | syms_of_data (void) |
7921925c | 3013 | { |
6315e761 RS |
3014 | Lisp_Object error_tail, arith_tail; |
3015 | ||
d67b4f80 DN |
3016 | Qquote = intern_c_string ("quote"); |
3017 | Qlambda = intern_c_string ("lambda"); | |
3018 | Qsubr = intern_c_string ("subr"); | |
3019 | Qerror_conditions = intern_c_string ("error-conditions"); | |
3020 | Qerror_message = intern_c_string ("error-message"); | |
3021 | Qtop_level = intern_c_string ("top-level"); | |
3022 | ||
3023 | Qerror = intern_c_string ("error"); | |
3024 | Qquit = intern_c_string ("quit"); | |
3025 | Qwrong_type_argument = intern_c_string ("wrong-type-argument"); | |
3026 | Qargs_out_of_range = intern_c_string ("args-out-of-range"); | |
3027 | Qvoid_function = intern_c_string ("void-function"); | |
3028 | Qcyclic_function_indirection = intern_c_string ("cyclic-function-indirection"); | |
3029 | Qcyclic_variable_indirection = intern_c_string ("cyclic-variable-indirection"); | |
3030 | Qvoid_variable = intern_c_string ("void-variable"); | |
3031 | Qsetting_constant = intern_c_string ("setting-constant"); | |
3032 | Qinvalid_read_syntax = intern_c_string ("invalid-read-syntax"); | |
3033 | ||
3034 | Qinvalid_function = intern_c_string ("invalid-function"); | |
3035 | Qwrong_number_of_arguments = intern_c_string ("wrong-number-of-arguments"); | |
3036 | Qno_catch = intern_c_string ("no-catch"); | |
3037 | Qend_of_file = intern_c_string ("end-of-file"); | |
3038 | Qarith_error = intern_c_string ("arith-error"); | |
3039 | Qbeginning_of_buffer = intern_c_string ("beginning-of-buffer"); | |
3040 | Qend_of_buffer = intern_c_string ("end-of-buffer"); | |
3041 | Qbuffer_read_only = intern_c_string ("buffer-read-only"); | |
3042 | Qtext_read_only = intern_c_string ("text-read-only"); | |
3043 | Qmark_inactive = intern_c_string ("mark-inactive"); | |
3044 | ||
3045 | Qlistp = intern_c_string ("listp"); | |
3046 | Qconsp = intern_c_string ("consp"); | |
3047 | Qsymbolp = intern_c_string ("symbolp"); | |
3048 | Qkeywordp = intern_c_string ("keywordp"); | |
3049 | Qintegerp = intern_c_string ("integerp"); | |
3050 | Qnatnump = intern_c_string ("natnump"); | |
3051 | Qwholenump = intern_c_string ("wholenump"); | |
3052 | Qstringp = intern_c_string ("stringp"); | |
3053 | Qarrayp = intern_c_string ("arrayp"); | |
3054 | Qsequencep = intern_c_string ("sequencep"); | |
3055 | Qbufferp = intern_c_string ("bufferp"); | |
3056 | Qvectorp = intern_c_string ("vectorp"); | |
3057 | Qchar_or_string_p = intern_c_string ("char-or-string-p"); | |
3058 | Qmarkerp = intern_c_string ("markerp"); | |
3059 | Qbuffer_or_string_p = intern_c_string ("buffer-or-string-p"); | |
3060 | Qinteger_or_marker_p = intern_c_string ("integer-or-marker-p"); | |
3061 | Qboundp = intern_c_string ("boundp"); | |
3062 | Qfboundp = intern_c_string ("fboundp"); | |
3063 | ||
3064 | Qfloatp = intern_c_string ("floatp"); | |
3065 | Qnumberp = intern_c_string ("numberp"); | |
3066 | Qnumber_or_marker_p = intern_c_string ("number-or-marker-p"); | |
3067 | ||
3068 | Qchar_table_p = intern_c_string ("char-table-p"); | |
3069 | Qvector_or_char_table_p = intern_c_string ("vector-or-char-table-p"); | |
3070 | ||
3071 | Qsubrp = intern_c_string ("subrp"); | |
3072 | Qunevalled = intern_c_string ("unevalled"); | |
3073 | Qmany = intern_c_string ("many"); | |
3074 | ||
3075 | Qcdr = intern_c_string ("cdr"); | |
7921925c | 3076 | |
f845f2c9 | 3077 | /* Handle automatic advice activation */ |
d67b4f80 DN |
3078 | Qad_advice_info = intern_c_string ("ad-advice-info"); |
3079 | Qad_activate_internal = intern_c_string ("ad-activate-internal"); | |
f845f2c9 | 3080 | |
d67b4f80 | 3081 | error_tail = pure_cons (Qerror, Qnil); |
6315e761 | 3082 | |
7921925c JB |
3083 | /* ERROR is used as a signaler for random errors for which nothing else is right */ |
3084 | ||
3085 | Fput (Qerror, Qerror_conditions, | |
6315e761 | 3086 | error_tail); |
7921925c | 3087 | Fput (Qerror, Qerror_message, |
d67b4f80 | 3088 | make_pure_c_string ("error")); |
7921925c JB |
3089 | |
3090 | Fput (Qquit, Qerror_conditions, | |
d67b4f80 | 3091 | pure_cons (Qquit, Qnil)); |
7921925c | 3092 | Fput (Qquit, Qerror_message, |
d67b4f80 | 3093 | make_pure_c_string ("Quit")); |
7921925c JB |
3094 | |
3095 | Fput (Qwrong_type_argument, Qerror_conditions, | |
d67b4f80 | 3096 | pure_cons (Qwrong_type_argument, error_tail)); |
7921925c | 3097 | Fput (Qwrong_type_argument, Qerror_message, |
d67b4f80 | 3098 | make_pure_c_string ("Wrong type argument")); |
7921925c JB |
3099 | |
3100 | Fput (Qargs_out_of_range, Qerror_conditions, | |
d67b4f80 | 3101 | pure_cons (Qargs_out_of_range, error_tail)); |
7921925c | 3102 | Fput (Qargs_out_of_range, Qerror_message, |
d67b4f80 | 3103 | make_pure_c_string ("Args out of range")); |
7921925c JB |
3104 | |
3105 | Fput (Qvoid_function, Qerror_conditions, | |
d67b4f80 | 3106 | pure_cons (Qvoid_function, error_tail)); |
7921925c | 3107 | Fput (Qvoid_function, Qerror_message, |
d67b4f80 | 3108 | make_pure_c_string ("Symbol's function definition is void")); |
7921925c | 3109 | |
ffd56f97 | 3110 | Fput (Qcyclic_function_indirection, Qerror_conditions, |
d67b4f80 | 3111 | pure_cons (Qcyclic_function_indirection, error_tail)); |
ffd56f97 | 3112 | Fput (Qcyclic_function_indirection, Qerror_message, |
d67b4f80 | 3113 | make_pure_c_string ("Symbol's chain of function indirections contains a loop")); |
ffd56f97 | 3114 | |
f35d5bad | 3115 | Fput (Qcyclic_variable_indirection, Qerror_conditions, |
d67b4f80 | 3116 | pure_cons (Qcyclic_variable_indirection, error_tail)); |
f35d5bad | 3117 | Fput (Qcyclic_variable_indirection, Qerror_message, |
d67b4f80 | 3118 | make_pure_c_string ("Symbol's chain of variable indirections contains a loop")); |
f35d5bad | 3119 | |
d67b4f80 | 3120 | Qcircular_list = intern_c_string ("circular-list"); |
13d95cc0 GM |
3121 | staticpro (&Qcircular_list); |
3122 | Fput (Qcircular_list, Qerror_conditions, | |
d67b4f80 | 3123 | pure_cons (Qcircular_list, error_tail)); |
13d95cc0 | 3124 | Fput (Qcircular_list, Qerror_message, |
d67b4f80 | 3125 | make_pure_c_string ("List contains a loop")); |
13d95cc0 | 3126 | |
7921925c | 3127 | Fput (Qvoid_variable, Qerror_conditions, |
d67b4f80 | 3128 | pure_cons (Qvoid_variable, error_tail)); |
7921925c | 3129 | Fput (Qvoid_variable, Qerror_message, |
d67b4f80 | 3130 | make_pure_c_string ("Symbol's value as variable is void")); |
7921925c JB |
3131 | |
3132 | Fput (Qsetting_constant, Qerror_conditions, | |
d67b4f80 | 3133 | pure_cons (Qsetting_constant, error_tail)); |
7921925c | 3134 | Fput (Qsetting_constant, Qerror_message, |
d67b4f80 | 3135 | make_pure_c_string ("Attempt to set a constant symbol")); |
7921925c JB |
3136 | |
3137 | Fput (Qinvalid_read_syntax, Qerror_conditions, | |
d67b4f80 | 3138 | pure_cons (Qinvalid_read_syntax, error_tail)); |
7921925c | 3139 | Fput (Qinvalid_read_syntax, Qerror_message, |
d67b4f80 | 3140 | make_pure_c_string ("Invalid read syntax")); |
7921925c JB |
3141 | |
3142 | Fput (Qinvalid_function, Qerror_conditions, | |
d67b4f80 | 3143 | pure_cons (Qinvalid_function, error_tail)); |
7921925c | 3144 | Fput (Qinvalid_function, Qerror_message, |
d67b4f80 | 3145 | make_pure_c_string ("Invalid function")); |
7921925c JB |
3146 | |
3147 | Fput (Qwrong_number_of_arguments, Qerror_conditions, | |
d67b4f80 | 3148 | pure_cons (Qwrong_number_of_arguments, error_tail)); |
7921925c | 3149 | Fput (Qwrong_number_of_arguments, Qerror_message, |
d67b4f80 | 3150 | make_pure_c_string ("Wrong number of arguments")); |
7921925c JB |
3151 | |
3152 | Fput (Qno_catch, Qerror_conditions, | |
d67b4f80 | 3153 | pure_cons (Qno_catch, error_tail)); |
7921925c | 3154 | Fput (Qno_catch, Qerror_message, |
d67b4f80 | 3155 | make_pure_c_string ("No catch for tag")); |
7921925c JB |
3156 | |
3157 | Fput (Qend_of_file, Qerror_conditions, | |
d67b4f80 | 3158 | pure_cons (Qend_of_file, error_tail)); |
7921925c | 3159 | Fput (Qend_of_file, Qerror_message, |
d67b4f80 | 3160 | make_pure_c_string ("End of file during parsing")); |
7921925c | 3161 | |
d67b4f80 | 3162 | arith_tail = pure_cons (Qarith_error, error_tail); |
7921925c | 3163 | Fput (Qarith_error, Qerror_conditions, |
6315e761 | 3164 | arith_tail); |
7921925c | 3165 | Fput (Qarith_error, Qerror_message, |
d67b4f80 | 3166 | make_pure_c_string ("Arithmetic error")); |
7921925c JB |
3167 | |
3168 | Fput (Qbeginning_of_buffer, Qerror_conditions, | |
d67b4f80 | 3169 | pure_cons (Qbeginning_of_buffer, error_tail)); |
7921925c | 3170 | Fput (Qbeginning_of_buffer, Qerror_message, |
d67b4f80 | 3171 | make_pure_c_string ("Beginning of buffer")); |
7921925c JB |
3172 | |
3173 | Fput (Qend_of_buffer, Qerror_conditions, | |
d67b4f80 | 3174 | pure_cons (Qend_of_buffer, error_tail)); |
7921925c | 3175 | Fput (Qend_of_buffer, Qerror_message, |
d67b4f80 | 3176 | make_pure_c_string ("End of buffer")); |
7921925c JB |
3177 | |
3178 | Fput (Qbuffer_read_only, Qerror_conditions, | |
d67b4f80 | 3179 | pure_cons (Qbuffer_read_only, error_tail)); |
7921925c | 3180 | Fput (Qbuffer_read_only, Qerror_message, |
d67b4f80 | 3181 | make_pure_c_string ("Buffer is read-only")); |
7921925c | 3182 | |
8f9f49d7 | 3183 | Fput (Qtext_read_only, Qerror_conditions, |
d67b4f80 | 3184 | pure_cons (Qtext_read_only, error_tail)); |
8f9f49d7 | 3185 | Fput (Qtext_read_only, Qerror_message, |
d67b4f80 | 3186 | make_pure_c_string ("Text is read-only")); |
8f9f49d7 | 3187 | |
d67b4f80 DN |
3188 | Qrange_error = intern_c_string ("range-error"); |
3189 | Qdomain_error = intern_c_string ("domain-error"); | |
3190 | Qsingularity_error = intern_c_string ("singularity-error"); | |
3191 | Qoverflow_error = intern_c_string ("overflow-error"); | |
3192 | Qunderflow_error = intern_c_string ("underflow-error"); | |
6315e761 RS |
3193 | |
3194 | Fput (Qdomain_error, Qerror_conditions, | |
d67b4f80 | 3195 | pure_cons (Qdomain_error, arith_tail)); |
6315e761 | 3196 | Fput (Qdomain_error, Qerror_message, |
d67b4f80 | 3197 | make_pure_c_string ("Arithmetic domain error")); |
6315e761 RS |
3198 | |
3199 | Fput (Qrange_error, Qerror_conditions, | |
d67b4f80 | 3200 | pure_cons (Qrange_error, arith_tail)); |
6315e761 | 3201 | Fput (Qrange_error, Qerror_message, |
d67b4f80 | 3202 | make_pure_c_string ("Arithmetic range error")); |
6315e761 RS |
3203 | |
3204 | Fput (Qsingularity_error, Qerror_conditions, | |
d67b4f80 | 3205 | pure_cons (Qsingularity_error, Fcons (Qdomain_error, arith_tail))); |
6315e761 | 3206 | Fput (Qsingularity_error, Qerror_message, |
d67b4f80 | 3207 | make_pure_c_string ("Arithmetic singularity error")); |
6315e761 RS |
3208 | |
3209 | Fput (Qoverflow_error, Qerror_conditions, | |
d67b4f80 | 3210 | pure_cons (Qoverflow_error, Fcons (Qdomain_error, arith_tail))); |
6315e761 | 3211 | Fput (Qoverflow_error, Qerror_message, |
d67b4f80 | 3212 | make_pure_c_string ("Arithmetic overflow error")); |
6315e761 RS |
3213 | |
3214 | Fput (Qunderflow_error, Qerror_conditions, | |
d67b4f80 | 3215 | pure_cons (Qunderflow_error, Fcons (Qdomain_error, arith_tail))); |
6315e761 | 3216 | Fput (Qunderflow_error, Qerror_message, |
d67b4f80 | 3217 | make_pure_c_string ("Arithmetic underflow error")); |
6315e761 RS |
3218 | |
3219 | staticpro (&Qrange_error); | |
3220 | staticpro (&Qdomain_error); | |
3221 | staticpro (&Qsingularity_error); | |
3222 | staticpro (&Qoverflow_error); | |
3223 | staticpro (&Qunderflow_error); | |
6315e761 | 3224 | |
7921925c JB |
3225 | staticpro (&Qnil); |
3226 | staticpro (&Qt); | |
3227 | staticpro (&Qquote); | |
3228 | staticpro (&Qlambda); | |
3229 | staticpro (&Qsubr); | |
3230 | staticpro (&Qunbound); | |
3231 | staticpro (&Qerror_conditions); | |
3232 | staticpro (&Qerror_message); | |
3233 | staticpro (&Qtop_level); | |
3234 | ||
3235 | staticpro (&Qerror); | |
3236 | staticpro (&Qquit); | |
3237 | staticpro (&Qwrong_type_argument); | |
3238 | staticpro (&Qargs_out_of_range); | |
3239 | staticpro (&Qvoid_function); | |
ffd56f97 | 3240 | staticpro (&Qcyclic_function_indirection); |
dfad0b34 | 3241 | staticpro (&Qcyclic_variable_indirection); |
7921925c JB |
3242 | staticpro (&Qvoid_variable); |
3243 | staticpro (&Qsetting_constant); | |
3244 | staticpro (&Qinvalid_read_syntax); | |
3245 | staticpro (&Qwrong_number_of_arguments); | |
3246 | staticpro (&Qinvalid_function); | |
3247 | staticpro (&Qno_catch); | |
3248 | staticpro (&Qend_of_file); | |
3249 | staticpro (&Qarith_error); | |
3250 | staticpro (&Qbeginning_of_buffer); | |
3251 | staticpro (&Qend_of_buffer); | |
3252 | staticpro (&Qbuffer_read_only); | |
8f9f49d7 | 3253 | staticpro (&Qtext_read_only); |
638b77e6 | 3254 | staticpro (&Qmark_inactive); |
7921925c JB |
3255 | |
3256 | staticpro (&Qlistp); | |
3257 | staticpro (&Qconsp); | |
3258 | staticpro (&Qsymbolp); | |
cda9b832 | 3259 | staticpro (&Qkeywordp); |
7921925c JB |
3260 | staticpro (&Qintegerp); |
3261 | staticpro (&Qnatnump); | |
8e86942b | 3262 | staticpro (&Qwholenump); |
7921925c JB |
3263 | staticpro (&Qstringp); |
3264 | staticpro (&Qarrayp); | |
3265 | staticpro (&Qsequencep); | |
3266 | staticpro (&Qbufferp); | |
3267 | staticpro (&Qvectorp); | |
3268 | staticpro (&Qchar_or_string_p); | |
3269 | staticpro (&Qmarkerp); | |
07bd8472 | 3270 | staticpro (&Qbuffer_or_string_p); |
7921925c | 3271 | staticpro (&Qinteger_or_marker_p); |
7921925c | 3272 | staticpro (&Qfloatp); |
464f8898 RS |
3273 | staticpro (&Qnumberp); |
3274 | staticpro (&Qnumber_or_marker_p); | |
4d276982 | 3275 | staticpro (&Qchar_table_p); |
7f0edce7 | 3276 | staticpro (&Qvector_or_char_table_p); |
6f0e897f DL |
3277 | staticpro (&Qsubrp); |
3278 | staticpro (&Qmany); | |
3279 | staticpro (&Qunevalled); | |
7921925c JB |
3280 | |
3281 | staticpro (&Qboundp); | |
3282 | staticpro (&Qfboundp); | |
3283 | staticpro (&Qcdr); | |
ab297811 | 3284 | staticpro (&Qad_advice_info); |
c1307a23 | 3285 | staticpro (&Qad_activate_internal); |
7921925c | 3286 | |
39bcc759 | 3287 | /* Types that type-of returns. */ |
d67b4f80 DN |
3288 | Qinteger = intern_c_string ("integer"); |
3289 | Qsymbol = intern_c_string ("symbol"); | |
3290 | Qstring = intern_c_string ("string"); | |
3291 | Qcons = intern_c_string ("cons"); | |
3292 | Qmarker = intern_c_string ("marker"); | |
3293 | Qoverlay = intern_c_string ("overlay"); | |
3294 | Qfloat = intern_c_string ("float"); | |
3295 | Qwindow_configuration = intern_c_string ("window-configuration"); | |
3296 | Qprocess = intern_c_string ("process"); | |
3297 | Qwindow = intern_c_string ("window"); | |
3298 | /* Qsubr = intern_c_string ("subr"); */ | |
3299 | Qcompiled_function = intern_c_string ("compiled-function"); | |
3300 | Qbuffer = intern_c_string ("buffer"); | |
3301 | Qframe = intern_c_string ("frame"); | |
3302 | Qvector = intern_c_string ("vector"); | |
3303 | Qchar_table = intern_c_string ("char-table"); | |
3304 | Qbool_vector = intern_c_string ("bool-vector"); | |
3305 | Qhash_table = intern_c_string ("hash-table"); | |
39bcc759 | 3306 | |
4e6f2626 CY |
3307 | DEFSYM (Qfont_spec, "font-spec"); |
3308 | DEFSYM (Qfont_entity, "font-entity"); | |
3309 | DEFSYM (Qfont_object, "font-object"); | |
3310 | ||
3860280a CY |
3311 | DEFSYM (Qinteractive_form, "interactive-form"); |
3312 | ||
39bcc759 RS |
3313 | staticpro (&Qinteger); |
3314 | staticpro (&Qsymbol); | |
3315 | staticpro (&Qstring); | |
3316 | staticpro (&Qcons); | |
3317 | staticpro (&Qmarker); | |
3318 | staticpro (&Qoverlay); | |
3319 | staticpro (&Qfloat); | |
3320 | staticpro (&Qwindow_configuration); | |
3321 | staticpro (&Qprocess); | |
3322 | staticpro (&Qwindow); | |
3323 | /* staticpro (&Qsubr); */ | |
3324 | staticpro (&Qcompiled_function); | |
3325 | staticpro (&Qbuffer); | |
3326 | staticpro (&Qframe); | |
3327 | staticpro (&Qvector); | |
fc67d5be KH |
3328 | staticpro (&Qchar_table); |
3329 | staticpro (&Qbool_vector); | |
81dc5de5 | 3330 | staticpro (&Qhash_table); |
39bcc759 | 3331 | |
f35d5bad | 3332 | defsubr (&Sindirect_variable); |
6b61353c | 3333 | defsubr (&Sinteractive_form); |
7921925c JB |
3334 | defsubr (&Seq); |
3335 | defsubr (&Snull); | |
39bcc759 | 3336 | defsubr (&Stype_of); |
7921925c JB |
3337 | defsubr (&Slistp); |
3338 | defsubr (&Snlistp); | |
3339 | defsubr (&Sconsp); | |
3340 | defsubr (&Satom); | |
3341 | defsubr (&Sintegerp); | |
464f8898 | 3342 | defsubr (&Sinteger_or_marker_p); |
7921925c JB |
3343 | defsubr (&Snumberp); |
3344 | defsubr (&Snumber_or_marker_p); | |
464f8898 | 3345 | defsubr (&Sfloatp); |
7921925c JB |
3346 | defsubr (&Snatnump); |
3347 | defsubr (&Ssymbolp); | |
cda9b832 | 3348 | defsubr (&Skeywordp); |
7921925c | 3349 | defsubr (&Sstringp); |
0f56470d | 3350 | defsubr (&Smultibyte_string_p); |
7921925c | 3351 | defsubr (&Svectorp); |
4d276982 | 3352 | defsubr (&Schar_table_p); |
7f0edce7 | 3353 | defsubr (&Svector_or_char_table_p); |
4d276982 | 3354 | defsubr (&Sbool_vector_p); |
7921925c JB |
3355 | defsubr (&Sarrayp); |
3356 | defsubr (&Ssequencep); | |
3357 | defsubr (&Sbufferp); | |
3358 | defsubr (&Smarkerp); | |
7921925c | 3359 | defsubr (&Ssubrp); |
dbc4e1c1 | 3360 | defsubr (&Sbyte_code_function_p); |
7921925c JB |
3361 | defsubr (&Schar_or_string_p); |
3362 | defsubr (&Scar); | |
3363 | defsubr (&Scdr); | |
3364 | defsubr (&Scar_safe); | |
3365 | defsubr (&Scdr_safe); | |
3366 | defsubr (&Ssetcar); | |
3367 | defsubr (&Ssetcdr); | |
3368 | defsubr (&Ssymbol_function); | |
ffd56f97 | 3369 | defsubr (&Sindirect_function); |
7921925c JB |
3370 | defsubr (&Ssymbol_plist); |
3371 | defsubr (&Ssymbol_name); | |
3372 | defsubr (&Smakunbound); | |
3373 | defsubr (&Sfmakunbound); | |
3374 | defsubr (&Sboundp); | |
3375 | defsubr (&Sfboundp); | |
3376 | defsubr (&Sfset); | |
80df38a2 | 3377 | defsubr (&Sdefalias); |
7921925c JB |
3378 | defsubr (&Ssetplist); |
3379 | defsubr (&Ssymbol_value); | |
3380 | defsubr (&Sset); | |
3381 | defsubr (&Sdefault_boundp); | |
3382 | defsubr (&Sdefault_value); | |
3383 | defsubr (&Sset_default); | |
3384 | defsubr (&Ssetq_default); | |
3385 | defsubr (&Smake_variable_buffer_local); | |
3386 | defsubr (&Smake_local_variable); | |
3387 | defsubr (&Skill_local_variable); | |
b0c2d1c6 | 3388 | defsubr (&Smake_variable_frame_local); |
62476adc | 3389 | defsubr (&Slocal_variable_p); |
f4f04cee | 3390 | defsubr (&Slocal_variable_if_set_p); |
6b61353c | 3391 | defsubr (&Svariable_binding_locus); |
c40bb1ba | 3392 | #if 0 /* XXX Remove this. --lorentey */ |
2a42d440 KL |
3393 | defsubr (&Sterminal_local_value); |
3394 | defsubr (&Sset_terminal_local_value); | |
c40bb1ba | 3395 | #endif |
7921925c JB |
3396 | defsubr (&Saref); |
3397 | defsubr (&Saset); | |
f2980264 | 3398 | defsubr (&Snumber_to_string); |
25e40a4b | 3399 | defsubr (&Sstring_to_number); |
7921925c JB |
3400 | defsubr (&Seqlsign); |
3401 | defsubr (&Slss); | |
3402 | defsubr (&Sgtr); | |
3403 | defsubr (&Sleq); | |
3404 | defsubr (&Sgeq); | |
3405 | defsubr (&Sneq); | |
3406 | defsubr (&Szerop); | |
3407 | defsubr (&Splus); | |
3408 | defsubr (&Sminus); | |
3409 | defsubr (&Stimes); | |
3410 | defsubr (&Squo); | |
3411 | defsubr (&Srem); | |
44fa9da5 | 3412 | defsubr (&Smod); |
7921925c JB |
3413 | defsubr (&Smax); |
3414 | defsubr (&Smin); | |
3415 | defsubr (&Slogand); | |
3416 | defsubr (&Slogior); | |
3417 | defsubr (&Slogxor); | |
3418 | defsubr (&Slsh); | |
3419 | defsubr (&Sash); | |
3420 | defsubr (&Sadd1); | |
3421 | defsubr (&Ssub1); | |
3422 | defsubr (&Slognot); | |
6b61353c | 3423 | defsubr (&Sbyteorder); |
6f0e897f | 3424 | defsubr (&Ssubr_arity); |
0fddae66 | 3425 | defsubr (&Ssubr_name); |
8e86942b | 3426 | |
c80bd143 | 3427 | XSYMBOL (Qwholenump)->function = XSYMBOL (Qnatnump)->function; |
e6190b11 | 3428 | |
9d113d9d AS |
3429 | DEFVAR_LISP ("most-positive-fixnum", &Vmost_positive_fixnum, |
3430 | doc: /* The largest value that is representable in a Lisp integer. */); | |
3431 | Vmost_positive_fixnum = make_number (MOST_POSITIVE_FIXNUM); | |
d67b4f80 | 3432 | XSYMBOL (intern_c_string ("most-positive-fixnum"))->constant = 1; |
bfb96cb7 | 3433 | |
9d113d9d AS |
3434 | DEFVAR_LISP ("most-negative-fixnum", &Vmost_negative_fixnum, |
3435 | doc: /* The smallest value that is representable in a Lisp integer. */); | |
3436 | Vmost_negative_fixnum = make_number (MOST_NEGATIVE_FIXNUM); | |
d67b4f80 | 3437 | XSYMBOL (intern_c_string ("most-negative-fixnum"))->constant = 1; |
7921925c JB |
3438 | } |
3439 | ||
a33ef3ab | 3440 | SIGTYPE |
971de7fb | 3441 | arith_error (int signo) |
7921925c | 3442 | { |
e065a56e | 3443 | sigsetmask (SIGEMPTYMASK); |
7921925c | 3444 | |
333f1b6f | 3445 | SIGNAL_THREAD_CHECK (signo); |
740ef0b5 | 3446 | xsignal0 (Qarith_error); |
7921925c JB |
3447 | } |
3448 | ||
dfcf069d | 3449 | void |
971de7fb | 3450 | init_data (void) |
7921925c JB |
3451 | { |
3452 | /* Don't do this if just dumping out. | |
3453 | We don't want to call `signal' in this case | |
3454 | so that we don't have trouble with dumping | |
3455 | signal-delivering routines in an inconsistent state. */ | |
3456 | #ifndef CANNOT_DUMP | |
3457 | if (!initialized) | |
3458 | return; | |
3459 | #endif /* CANNOT_DUMP */ | |
3460 | signal (SIGFPE, arith_error); | |
7403b5c8 | 3461 | |
7921925c JB |
3462 | #ifdef uts |
3463 | signal (SIGEMT, arith_error); | |
3464 | #endif /* uts */ | |
3465 | } | |
6b61353c KH |
3466 | |
3467 | /* arch-tag: 25879798-b84d-479a-9c89-7d148e2109f7 | |
3468 | (do not change this comment) */ |