Commit | Line | Data |
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7921925c | 1 | /* Primitive operations on Lisp data types for GNU Emacs Lisp interpreter. |
6f0e897f | 2 | Copyright (C) 1985,86,88,93,94,95,97,98,99,2000 Free Software Foundation, Inc. |
7921925c JB |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
7c938215 | 8 | the Free Software Foundation; either version 2, or (at your option) |
7921925c JB |
9 | any later version. |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
7921925c JB |
20 | |
21 | ||
18160b98 | 22 | #include <config.h> |
68c45bf0 | 23 | #include <signal.h> |
dd8daec5 | 24 | #include <stdio.h> |
7921925c | 25 | #include "lisp.h" |
29eab336 | 26 | #include "puresize.h" |
8313c4e7 | 27 | #include "charset.h" |
7921925c | 28 | #include "buffer.h" |
077d751f | 29 | #include "keyboard.h" |
b0c2d1c6 | 30 | #include "frame.h" |
a44804c2 | 31 | #include "syssignal.h" |
fb8e9847 | 32 | |
93b91208 | 33 | #ifdef STDC_HEADERS |
2f261542 | 34 | #include <float.h> |
93b91208 | 35 | #endif |
defa77b5 | 36 | |
ad8d56b9 PE |
37 | /* If IEEE_FLOATING_POINT isn't defined, default it from FLT_*. */ |
38 | #ifndef IEEE_FLOATING_POINT | |
39 | #if (FLT_RADIX == 2 && FLT_MANT_DIG == 24 \ | |
40 | && FLT_MIN_EXP == -125 && FLT_MAX_EXP == 128) | |
41 | #define IEEE_FLOATING_POINT 1 | |
42 | #else | |
43 | #define IEEE_FLOATING_POINT 0 | |
44 | #endif | |
45 | #endif | |
46 | ||
defa77b5 RS |
47 | /* Work around a problem that happens because math.h on hpux 7 |
48 | defines two static variables--which, in Emacs, are not really static, | |
49 | because `static' is defined as nothing. The problem is that they are | |
50 | here, in floatfns.c, and in lread.c. | |
51 | These macros prevent the name conflict. */ | |
52 | #if defined (HPUX) && !defined (HPUX8) | |
53 | #define _MAXLDBL data_c_maxldbl | |
54 | #define _NMAXLDBL data_c_nmaxldbl | |
55 | #endif | |
56 | ||
7921925c | 57 | #include <math.h> |
7921925c | 58 | |
024ec58f BF |
59 | #if !defined (atof) |
60 | extern double atof (); | |
61 | #endif /* !atof */ | |
62 | ||
7921925c JB |
63 | Lisp_Object Qnil, Qt, Qquote, Qlambda, Qsubr, Qunbound; |
64 | Lisp_Object Qerror_conditions, Qerror_message, Qtop_level; | |
65 | Lisp_Object Qerror, Qquit, Qwrong_type_argument, Qargs_out_of_range; | |
ffd56f97 | 66 | Lisp_Object Qvoid_variable, Qvoid_function, Qcyclic_function_indirection; |
7921925c JB |
67 | Lisp_Object Qsetting_constant, Qinvalid_read_syntax; |
68 | Lisp_Object Qinvalid_function, Qwrong_number_of_arguments, Qno_catch; | |
3b8819d6 | 69 | Lisp_Object Qend_of_file, Qarith_error, Qmark_inactive; |
7921925c | 70 | Lisp_Object Qbeginning_of_buffer, Qend_of_buffer, Qbuffer_read_only; |
8f9f49d7 | 71 | Lisp_Object Qtext_read_only; |
8e86942b | 72 | Lisp_Object Qintegerp, Qnatnump, Qwholenump, Qsymbolp, Qlistp, Qconsp; |
7921925c JB |
73 | Lisp_Object Qstringp, Qarrayp, Qsequencep, Qbufferp; |
74 | Lisp_Object Qchar_or_string_p, Qmarkerp, Qinteger_or_marker_p, Qvectorp; | |
cda9b832 | 75 | Lisp_Object Qbuffer_or_string_p, Qkeywordp; |
7921925c | 76 | Lisp_Object Qboundp, Qfboundp; |
7f0edce7 | 77 | Lisp_Object Qchar_table_p, Qvector_or_char_table_p; |
39bcc759 | 78 | |
7921925c | 79 | Lisp_Object Qcdr; |
c1307a23 | 80 | Lisp_Object Qad_advice_info, Qad_activate_internal; |
7921925c | 81 | |
6315e761 RS |
82 | Lisp_Object Qrange_error, Qdomain_error, Qsingularity_error; |
83 | Lisp_Object Qoverflow_error, Qunderflow_error; | |
84 | ||
464f8898 | 85 | Lisp_Object Qfloatp; |
7921925c | 86 | Lisp_Object Qnumberp, Qnumber_or_marker_p; |
7921925c | 87 | |
39bcc759 | 88 | static Lisp_Object Qinteger, Qsymbol, Qstring, Qcons, Qmarker, Qoverlay; |
8313c4e7 KH |
89 | static Lisp_Object Qfloat, Qwindow_configuration, Qwindow; |
90 | Lisp_Object Qprocess; | |
39bcc759 | 91 | static Lisp_Object Qcompiled_function, Qbuffer, Qframe, Qvector; |
81dc5de5 | 92 | static Lisp_Object Qchar_table, Qbool_vector, Qhash_table; |
6f0e897f | 93 | static Lisp_Object Qsubrp, Qmany, Qunevalled; |
39bcc759 | 94 | |
7921925c JB |
95 | static Lisp_Object swap_in_symval_forwarding (); |
96 | ||
d02eeab3 KH |
97 | Lisp_Object set_internal (); |
98 | ||
7921925c JB |
99 | Lisp_Object |
100 | wrong_type_argument (predicate, value) | |
101 | register Lisp_Object predicate, value; | |
102 | { | |
103 | register Lisp_Object tem; | |
104 | do | |
105 | { | |
106 | if (!EQ (Vmocklisp_arguments, Qt)) | |
107 | { | |
e9ebc175 | 108 | if (STRINGP (value) && |
7921925c | 109 | (EQ (predicate, Qintegerp) || EQ (predicate, Qinteger_or_marker_p))) |
3883fbeb | 110 | return Fstring_to_number (value, Qnil); |
e9ebc175 | 111 | if (INTEGERP (value) && EQ (predicate, Qstringp)) |
f2980264 | 112 | return Fnumber_to_string (value); |
7921925c | 113 | } |
e1351ff7 RS |
114 | |
115 | /* If VALUE is not even a valid Lisp object, abort here | |
116 | where we can get a backtrace showing where it came from. */ | |
04be3993 | 117 | if ((unsigned int) XGCTYPE (value) >= Lisp_Type_Limit) |
e1351ff7 RS |
118 | abort (); |
119 | ||
7921925c JB |
120 | value = Fsignal (Qwrong_type_argument, Fcons (predicate, Fcons (value, Qnil))); |
121 | tem = call1 (predicate, value); | |
122 | } | |
a33ef3ab | 123 | while (NILP (tem)); |
7921925c JB |
124 | return value; |
125 | } | |
126 | ||
dfcf069d | 127 | void |
7921925c JB |
128 | pure_write_error () |
129 | { | |
130 | error ("Attempt to modify read-only object"); | |
131 | } | |
132 | ||
133 | void | |
134 | args_out_of_range (a1, a2) | |
135 | Lisp_Object a1, a2; | |
136 | { | |
137 | while (1) | |
138 | Fsignal (Qargs_out_of_range, Fcons (a1, Fcons (a2, Qnil))); | |
139 | } | |
140 | ||
141 | void | |
142 | args_out_of_range_3 (a1, a2, a3) | |
143 | Lisp_Object a1, a2, a3; | |
144 | { | |
145 | while (1) | |
146 | Fsignal (Qargs_out_of_range, Fcons (a1, Fcons (a2, Fcons (a3, Qnil)))); | |
147 | } | |
148 | ||
7921925c JB |
149 | /* On some machines, XINT needs a temporary location. |
150 | Here it is, in case it is needed. */ | |
151 | ||
152 | int sign_extend_temp; | |
153 | ||
154 | /* On a few machines, XINT can only be done by calling this. */ | |
155 | ||
156 | int | |
157 | sign_extend_lisp_int (num) | |
a0ed95ea | 158 | EMACS_INT num; |
7921925c | 159 | { |
a0ed95ea RS |
160 | if (num & (((EMACS_INT) 1) << (VALBITS - 1))) |
161 | return num | (((EMACS_INT) (-1)) << VALBITS); | |
7921925c | 162 | else |
a0ed95ea | 163 | return num & ((((EMACS_INT) 1) << VALBITS) - 1); |
7921925c JB |
164 | } |
165 | \f | |
166 | /* Data type predicates */ | |
167 | ||
168 | DEFUN ("eq", Feq, Seq, 2, 2, 0, | |
c2124165 | 169 | "Return t if the two args are the same Lisp object.") |
7921925c JB |
170 | (obj1, obj2) |
171 | Lisp_Object obj1, obj2; | |
172 | { | |
173 | if (EQ (obj1, obj2)) | |
174 | return Qt; | |
175 | return Qnil; | |
176 | } | |
177 | ||
c2124165 | 178 | DEFUN ("null", Fnull, Snull, 1, 1, 0, "Return t if OBJECT is nil.") |
39bcc759 RS |
179 | (object) |
180 | Lisp_Object object; | |
7921925c | 181 | { |
39bcc759 | 182 | if (NILP (object)) |
7921925c JB |
183 | return Qt; |
184 | return Qnil; | |
185 | } | |
186 | ||
39bcc759 RS |
187 | DEFUN ("type-of", Ftype_of, Stype_of, 1, 1, 0, |
188 | "Return a symbol representing the type of OBJECT.\n\ | |
189 | The symbol returned names the object's basic type;\n\ | |
190 | for example, (type-of 1) returns `integer'.") | |
191 | (object) | |
192 | Lisp_Object object; | |
193 | { | |
194 | switch (XGCTYPE (object)) | |
195 | { | |
196 | case Lisp_Int: | |
197 | return Qinteger; | |
198 | ||
199 | case Lisp_Symbol: | |
200 | return Qsymbol; | |
201 | ||
202 | case Lisp_String: | |
203 | return Qstring; | |
204 | ||
205 | case Lisp_Cons: | |
206 | return Qcons; | |
207 | ||
208 | case Lisp_Misc: | |
324a6eef | 209 | switch (XMISCTYPE (object)) |
39bcc759 RS |
210 | { |
211 | case Lisp_Misc_Marker: | |
212 | return Qmarker; | |
213 | case Lisp_Misc_Overlay: | |
214 | return Qoverlay; | |
215 | case Lisp_Misc_Float: | |
216 | return Qfloat; | |
217 | } | |
218 | abort (); | |
219 | ||
220 | case Lisp_Vectorlike: | |
221 | if (GC_WINDOW_CONFIGURATIONP (object)) | |
222 | return Qwindow_configuration; | |
223 | if (GC_PROCESSP (object)) | |
224 | return Qprocess; | |
225 | if (GC_WINDOWP (object)) | |
226 | return Qwindow; | |
227 | if (GC_SUBRP (object)) | |
228 | return Qsubr; | |
229 | if (GC_COMPILEDP (object)) | |
230 | return Qcompiled_function; | |
231 | if (GC_BUFFERP (object)) | |
232 | return Qbuffer; | |
fc67d5be KH |
233 | if (GC_CHAR_TABLE_P (object)) |
234 | return Qchar_table; | |
235 | if (GC_BOOL_VECTOR_P (object)) | |
236 | return Qbool_vector; | |
39bcc759 RS |
237 | if (GC_FRAMEP (object)) |
238 | return Qframe; | |
81dc5de5 GM |
239 | if (GC_HASH_TABLE_P (object)) |
240 | return Qhash_table; | |
39bcc759 RS |
241 | return Qvector; |
242 | ||
39bcc759 RS |
243 | case Lisp_Float: |
244 | return Qfloat; | |
39bcc759 RS |
245 | |
246 | default: | |
247 | abort (); | |
248 | } | |
249 | } | |
250 | ||
c2124165 | 251 | DEFUN ("consp", Fconsp, Sconsp, 1, 1, 0, "Return t if OBJECT is a cons cell.") |
39bcc759 RS |
252 | (object) |
253 | Lisp_Object object; | |
7921925c | 254 | { |
39bcc759 | 255 | if (CONSP (object)) |
7921925c JB |
256 | return Qt; |
257 | return Qnil; | |
258 | } | |
259 | ||
25638b07 RS |
260 | DEFUN ("atom", Fatom, Satom, 1, 1, 0, |
261 | "Return t if OBJECT is not a cons cell. This includes nil.") | |
39bcc759 RS |
262 | (object) |
263 | Lisp_Object object; | |
7921925c | 264 | { |
39bcc759 | 265 | if (CONSP (object)) |
7921925c JB |
266 | return Qnil; |
267 | return Qt; | |
268 | } | |
269 | ||
25638b07 RS |
270 | DEFUN ("listp", Flistp, Slistp, 1, 1, 0, |
271 | "Return t if OBJECT is a list. This includes nil.") | |
39bcc759 RS |
272 | (object) |
273 | Lisp_Object object; | |
7921925c | 274 | { |
39bcc759 | 275 | if (CONSP (object) || NILP (object)) |
7921925c JB |
276 | return Qt; |
277 | return Qnil; | |
278 | } | |
279 | ||
25638b07 RS |
280 | DEFUN ("nlistp", Fnlistp, Snlistp, 1, 1, 0, |
281 | "Return t if OBJECT is not a list. Lists include nil.") | |
39bcc759 RS |
282 | (object) |
283 | Lisp_Object object; | |
7921925c | 284 | { |
39bcc759 | 285 | if (CONSP (object) || NILP (object)) |
7921925c JB |
286 | return Qnil; |
287 | return Qt; | |
288 | } | |
289 | \f | |
25638b07 RS |
290 | DEFUN ("symbolp", Fsymbolp, Ssymbolp, 1, 1, 0, |
291 | "Return t if OBJECT is a symbol.") | |
39bcc759 RS |
292 | (object) |
293 | Lisp_Object object; | |
7921925c | 294 | { |
39bcc759 | 295 | if (SYMBOLP (object)) |
7921925c JB |
296 | return Qt; |
297 | return Qnil; | |
298 | } | |
299 | ||
cda9b832 DL |
300 | /* Define this in C to avoid unnecessarily consing up the symbol |
301 | name. */ | |
302 | DEFUN ("keywordp", Fkeywordp, Skeywordp, 1, 1, 0, | |
303 | "Return t if OBJECT is a keyword.\n\ | |
304 | This means that it is a symbol with a print name beginning with `:'\n\ | |
305 | interned in the initial obarray.") | |
306 | (object) | |
307 | Lisp_Object object; | |
308 | { | |
309 | if (SYMBOLP (object) | |
310 | && XSYMBOL (object)->name->data[0] == ':' | |
311 | && EQ (XSYMBOL (object)->obarray, initial_obarray)) | |
312 | return Qt; | |
313 | return Qnil; | |
314 | } | |
315 | ||
25638b07 RS |
316 | DEFUN ("vectorp", Fvectorp, Svectorp, 1, 1, 0, |
317 | "Return t if OBJECT is a vector.") | |
39bcc759 RS |
318 | (object) |
319 | Lisp_Object object; | |
7921925c | 320 | { |
39bcc759 | 321 | if (VECTORP (object)) |
7921925c JB |
322 | return Qt; |
323 | return Qnil; | |
324 | } | |
325 | ||
25638b07 RS |
326 | DEFUN ("stringp", Fstringp, Sstringp, 1, 1, 0, |
327 | "Return t if OBJECT is a string.") | |
39bcc759 RS |
328 | (object) |
329 | Lisp_Object object; | |
7921925c | 330 | { |
39bcc759 | 331 | if (STRINGP (object)) |
7921925c JB |
332 | return Qt; |
333 | return Qnil; | |
334 | } | |
335 | ||
25638b07 RS |
336 | DEFUN ("multibyte-string-p", Fmultibyte_string_p, Smultibyte_string_p, |
337 | 1, 1, 0, "Return t if OBJECT is a multibyte string.") | |
338 | (object) | |
339 | Lisp_Object object; | |
340 | { | |
341 | if (STRINGP (object) && STRING_MULTIBYTE (object)) | |
342 | return Qt; | |
343 | return Qnil; | |
344 | } | |
345 | ||
346 | DEFUN ("char-table-p", Fchar_table_p, Schar_table_p, 1, 1, 0, | |
347 | "Return t if OBJECT is a char-table.") | |
4d276982 RS |
348 | (object) |
349 | Lisp_Object object; | |
350 | { | |
351 | if (CHAR_TABLE_P (object)) | |
352 | return Qt; | |
353 | return Qnil; | |
354 | } | |
355 | ||
7f0edce7 RS |
356 | DEFUN ("vector-or-char-table-p", Fvector_or_char_table_p, |
357 | Svector_or_char_table_p, 1, 1, 0, | |
c2124165 | 358 | "Return t if OBJECT is a char-table or vector.") |
7f0edce7 RS |
359 | (object) |
360 | Lisp_Object object; | |
361 | { | |
362 | if (VECTORP (object) || CHAR_TABLE_P (object)) | |
363 | return Qt; | |
364 | return Qnil; | |
365 | } | |
366 | ||
c2124165 | 367 | DEFUN ("bool-vector-p", Fbool_vector_p, Sbool_vector_p, 1, 1, 0, "Return t if OBJECT is a bool-vector.") |
4d276982 RS |
368 | (object) |
369 | Lisp_Object object; | |
370 | { | |
371 | if (BOOL_VECTOR_P (object)) | |
372 | return Qt; | |
373 | return Qnil; | |
374 | } | |
375 | ||
c2124165 | 376 | DEFUN ("arrayp", Farrayp, Sarrayp, 1, 1, 0, "Return t if OBJECT is an array (string or vector).") |
39bcc759 RS |
377 | (object) |
378 | Lisp_Object object; | |
7921925c | 379 | { |
a9729926 RS |
380 | if (VECTORP (object) || STRINGP (object) |
381 | || CHAR_TABLE_P (object) || BOOL_VECTOR_P (object)) | |
7921925c JB |
382 | return Qt; |
383 | return Qnil; | |
384 | } | |
385 | ||
386 | DEFUN ("sequencep", Fsequencep, Ssequencep, 1, 1, 0, | |
c2124165 | 387 | "Return t if OBJECT is a sequence (list or array).") |
39bcc759 RS |
388 | (object) |
389 | register Lisp_Object object; | |
7921925c | 390 | { |
4d276982 RS |
391 | if (CONSP (object) || NILP (object) || VECTORP (object) || STRINGP (object) |
392 | || CHAR_TABLE_P (object) || BOOL_VECTOR_P (object)) | |
7921925c JB |
393 | return Qt; |
394 | return Qnil; | |
395 | } | |
396 | ||
c2124165 | 397 | DEFUN ("bufferp", Fbufferp, Sbufferp, 1, 1, 0, "Return t if OBJECT is an editor buffer.") |
39bcc759 RS |
398 | (object) |
399 | Lisp_Object object; | |
7921925c | 400 | { |
39bcc759 | 401 | if (BUFFERP (object)) |
7921925c JB |
402 | return Qt; |
403 | return Qnil; | |
404 | } | |
405 | ||
c2124165 | 406 | DEFUN ("markerp", Fmarkerp, Smarkerp, 1, 1, 0, "Return t if OBJECT is a marker (editor pointer).") |
39bcc759 RS |
407 | (object) |
408 | Lisp_Object object; | |
7921925c | 409 | { |
39bcc759 | 410 | if (MARKERP (object)) |
7921925c JB |
411 | return Qt; |
412 | return Qnil; | |
413 | } | |
414 | ||
c2124165 | 415 | DEFUN ("subrp", Fsubrp, Ssubrp, 1, 1, 0, "Return t if OBJECT is a built-in function.") |
39bcc759 RS |
416 | (object) |
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, |
c2124165 | 425 | 1, 1, 0, "Return t if OBJECT is a byte-compiled function object.") |
39bcc759 RS |
426 | (object) |
427 | Lisp_Object object; | |
7921925c | 428 | { |
39bcc759 | 429 | if (COMPILEDP (object)) |
7921925c JB |
430 | return Qt; |
431 | return Qnil; | |
432 | } | |
433 | ||
0321d75c | 434 | DEFUN ("char-or-string-p", Fchar_or_string_p, Schar_or_string_p, 1, 1, 0, |
c2124165 | 435 | "Return t if OBJECT is a character (an integer) or a string.") |
39bcc759 RS |
436 | (object) |
437 | register Lisp_Object object; | |
7921925c | 438 | { |
39bcc759 | 439 | if (INTEGERP (object) || STRINGP (object)) |
7921925c JB |
440 | return Qt; |
441 | return Qnil; | |
442 | } | |
443 | \f | |
c2124165 | 444 | DEFUN ("integerp", Fintegerp, Sintegerp, 1, 1, 0, "Return t if OBJECT is an integer.") |
39bcc759 RS |
445 | (object) |
446 | Lisp_Object object; | |
7921925c | 447 | { |
39bcc759 | 448 | if (INTEGERP (object)) |
7921925c JB |
449 | return Qt; |
450 | return Qnil; | |
451 | } | |
452 | ||
464f8898 | 453 | DEFUN ("integer-or-marker-p", Finteger_or_marker_p, Sinteger_or_marker_p, 1, 1, 0, |
c2124165 | 454 | "Return t if OBJECT is an integer or a marker (editor pointer).") |
39bcc759 RS |
455 | (object) |
456 | register Lisp_Object object; | |
7921925c | 457 | { |
39bcc759 | 458 | if (MARKERP (object) || INTEGERP (object)) |
7921925c JB |
459 | return Qt; |
460 | return Qnil; | |
461 | } | |
462 | ||
0321d75c | 463 | DEFUN ("natnump", Fnatnump, Snatnump, 1, 1, 0, |
c2124165 | 464 | "Return t if OBJECT is a nonnegative integer.") |
39bcc759 RS |
465 | (object) |
466 | Lisp_Object object; | |
7921925c | 467 | { |
39bcc759 | 468 | if (NATNUMP (object)) |
7921925c JB |
469 | return Qt; |
470 | return Qnil; | |
471 | } | |
472 | ||
473 | DEFUN ("numberp", Fnumberp, Snumberp, 1, 1, 0, | |
c2124165 | 474 | "Return t if OBJECT is a number (floating point or integer).") |
39bcc759 RS |
475 | (object) |
476 | Lisp_Object object; | |
7921925c | 477 | { |
39bcc759 | 478 | if (NUMBERP (object)) |
7921925c | 479 | return Qt; |
dbc4e1c1 JB |
480 | else |
481 | return Qnil; | |
7921925c JB |
482 | } |
483 | ||
484 | DEFUN ("number-or-marker-p", Fnumber_or_marker_p, | |
485 | Snumber_or_marker_p, 1, 1, 0, | |
c2124165 | 486 | "Return t if OBJECT is a number or a marker.") |
39bcc759 RS |
487 | (object) |
488 | Lisp_Object object; | |
7921925c | 489 | { |
39bcc759 | 490 | if (NUMBERP (object) || MARKERP (object)) |
7921925c JB |
491 | return Qt; |
492 | return Qnil; | |
493 | } | |
464f8898 | 494 | |
464f8898 | 495 | DEFUN ("floatp", Ffloatp, Sfloatp, 1, 1, 0, |
c2124165 | 496 | "Return t if OBJECT is a floating point number.") |
39bcc759 RS |
497 | (object) |
498 | Lisp_Object object; | |
464f8898 | 499 | { |
39bcc759 | 500 | if (FLOATP (object)) |
464f8898 RS |
501 | return Qt; |
502 | return Qnil; | |
503 | } | |
cc94f3b2 | 504 | |
7921925c JB |
505 | \f |
506 | /* Extract and set components of lists */ | |
507 | ||
508 | DEFUN ("car", Fcar, Scar, 1, 1, 0, | |
e1960a18 | 509 | "Return the car of LIST. If arg is nil, return nil.\n\ |
7921925c JB |
510 | Error if arg is not nil and not a cons cell. See also `car-safe'.") |
511 | (list) | |
512 | register Lisp_Object list; | |
513 | { | |
514 | while (1) | |
515 | { | |
e9ebc175 | 516 | if (CONSP (list)) |
7539e11f | 517 | return XCAR (list); |
7921925c JB |
518 | else if (EQ (list, Qnil)) |
519 | return Qnil; | |
520 | else | |
521 | list = wrong_type_argument (Qlistp, list); | |
522 | } | |
523 | } | |
524 | ||
525 | DEFUN ("car-safe", Fcar_safe, Scar_safe, 1, 1, 0, | |
526 | "Return the car of OBJECT if it is a cons cell, or else nil.") | |
527 | (object) | |
528 | Lisp_Object object; | |
529 | { | |
e9ebc175 | 530 | if (CONSP (object)) |
7539e11f | 531 | return XCAR (object); |
7921925c JB |
532 | else |
533 | return Qnil; | |
534 | } | |
535 | ||
536 | DEFUN ("cdr", Fcdr, Scdr, 1, 1, 0, | |
e1960a18 | 537 | "Return the cdr of LIST. If arg is nil, return nil.\n\ |
7921925c JB |
538 | Error if arg is not nil and not a cons cell. See also `cdr-safe'.") |
539 | ||
540 | (list) | |
541 | register Lisp_Object list; | |
542 | { | |
543 | while (1) | |
544 | { | |
e9ebc175 | 545 | if (CONSP (list)) |
7539e11f | 546 | return XCDR (list); |
7921925c JB |
547 | else if (EQ (list, Qnil)) |
548 | return Qnil; | |
549 | else | |
550 | list = wrong_type_argument (Qlistp, list); | |
551 | } | |
552 | } | |
553 | ||
554 | DEFUN ("cdr-safe", Fcdr_safe, Scdr_safe, 1, 1, 0, | |
b7abc8fa | 555 | "Return the cdr of OBJECT if it is a cons cell, or else nil.") |
7921925c JB |
556 | (object) |
557 | Lisp_Object object; | |
558 | { | |
e9ebc175 | 559 | if (CONSP (object)) |
7539e11f | 560 | return XCDR (object); |
7921925c JB |
561 | else |
562 | return Qnil; | |
563 | } | |
564 | ||
565 | DEFUN ("setcar", Fsetcar, Ssetcar, 2, 2, 0, | |
e1960a18 | 566 | "Set the car of CELL to be NEWCAR. Returns NEWCAR.") |
7921925c JB |
567 | (cell, newcar) |
568 | register Lisp_Object cell, newcar; | |
569 | { | |
e9ebc175 | 570 | if (!CONSP (cell)) |
7921925c JB |
571 | cell = wrong_type_argument (Qconsp, cell); |
572 | ||
573 | CHECK_IMPURE (cell); | |
7539e11f | 574 | XCAR (cell) = newcar; |
7921925c JB |
575 | return newcar; |
576 | } | |
577 | ||
578 | DEFUN ("setcdr", Fsetcdr, Ssetcdr, 2, 2, 0, | |
e1960a18 | 579 | "Set the cdr of CELL to be NEWCDR. Returns NEWCDR.") |
7921925c JB |
580 | (cell, newcdr) |
581 | register Lisp_Object cell, newcdr; | |
582 | { | |
e9ebc175 | 583 | if (!CONSP (cell)) |
7921925c JB |
584 | cell = wrong_type_argument (Qconsp, cell); |
585 | ||
586 | CHECK_IMPURE (cell); | |
7539e11f | 587 | XCDR (cell) = newcdr; |
7921925c JB |
588 | return newcdr; |
589 | } | |
590 | \f | |
591 | /* Extract and set components of symbols */ | |
592 | ||
c2124165 | 593 | DEFUN ("boundp", Fboundp, Sboundp, 1, 1, 0, "Return t if SYMBOL's value is not void.") |
d9c2a0f2 EN |
594 | (symbol) |
595 | register Lisp_Object symbol; | |
7921925c JB |
596 | { |
597 | Lisp_Object valcontents; | |
d9c2a0f2 | 598 | CHECK_SYMBOL (symbol, 0); |
7921925c | 599 | |
d9c2a0f2 | 600 | valcontents = XSYMBOL (symbol)->value; |
7921925c | 601 | |
aabf6bec KH |
602 | if (BUFFER_LOCAL_VALUEP (valcontents) |
603 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 604 | valcontents = swap_in_symval_forwarding (symbol, valcontents); |
7921925c | 605 | |
1bfcade3 | 606 | return (EQ (valcontents, Qunbound) ? Qnil : Qt); |
7921925c JB |
607 | } |
608 | ||
c2124165 | 609 | DEFUN ("fboundp", Ffboundp, Sfboundp, 1, 1, 0, "Return t if SYMBOL's function definition is not void.") |
d9c2a0f2 EN |
610 | (symbol) |
611 | register Lisp_Object symbol; | |
7921925c | 612 | { |
d9c2a0f2 EN |
613 | CHECK_SYMBOL (symbol, 0); |
614 | return (EQ (XSYMBOL (symbol)->function, Qunbound) ? Qnil : Qt); | |
7921925c JB |
615 | } |
616 | ||
617 | DEFUN ("makunbound", Fmakunbound, Smakunbound, 1, 1, 0, "Make SYMBOL's value be void.") | |
d9c2a0f2 EN |
618 | (symbol) |
619 | register Lisp_Object symbol; | |
7921925c | 620 | { |
d9c2a0f2 | 621 | CHECK_SYMBOL (symbol, 0); |
5c5aad07 KH |
622 | if (NILP (symbol) || EQ (symbol, Qt) |
623 | || (XSYMBOL (symbol)->name->data[0] == ':' | |
f50d847a | 624 | && EQ (XSYMBOL (symbol)->obarray, initial_obarray))) |
d9c2a0f2 EN |
625 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); |
626 | Fset (symbol, Qunbound); | |
627 | return symbol; | |
7921925c JB |
628 | } |
629 | ||
630 | DEFUN ("fmakunbound", Ffmakunbound, Sfmakunbound, 1, 1, 0, "Make SYMBOL's function definition be void.") | |
d9c2a0f2 EN |
631 | (symbol) |
632 | register Lisp_Object symbol; | |
7921925c | 633 | { |
d9c2a0f2 EN |
634 | CHECK_SYMBOL (symbol, 0); |
635 | if (NILP (symbol) || EQ (symbol, Qt)) | |
636 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); | |
637 | XSYMBOL (symbol)->function = Qunbound; | |
638 | return symbol; | |
7921925c JB |
639 | } |
640 | ||
641 | DEFUN ("symbol-function", Fsymbol_function, Ssymbol_function, 1, 1, 0, | |
642 | "Return SYMBOL's function definition. Error if that is void.") | |
ffd56f97 JB |
643 | (symbol) |
644 | register Lisp_Object symbol; | |
7921925c | 645 | { |
ffd56f97 JB |
646 | CHECK_SYMBOL (symbol, 0); |
647 | if (EQ (XSYMBOL (symbol)->function, Qunbound)) | |
648 | return Fsignal (Qvoid_function, Fcons (symbol, Qnil)); | |
649 | return XSYMBOL (symbol)->function; | |
7921925c JB |
650 | } |
651 | ||
652 | DEFUN ("symbol-plist", Fsymbol_plist, Ssymbol_plist, 1, 1, 0, "Return SYMBOL's property list.") | |
d9c2a0f2 EN |
653 | (symbol) |
654 | register Lisp_Object symbol; | |
7921925c | 655 | { |
d9c2a0f2 EN |
656 | CHECK_SYMBOL (symbol, 0); |
657 | return XSYMBOL (symbol)->plist; | |
7921925c JB |
658 | } |
659 | ||
660 | DEFUN ("symbol-name", Fsymbol_name, Ssymbol_name, 1, 1, 0, "Return SYMBOL's name, a string.") | |
d9c2a0f2 EN |
661 | (symbol) |
662 | register Lisp_Object symbol; | |
7921925c JB |
663 | { |
664 | register Lisp_Object name; | |
665 | ||
d9c2a0f2 EN |
666 | CHECK_SYMBOL (symbol, 0); |
667 | XSETSTRING (name, XSYMBOL (symbol)->name); | |
7921925c JB |
668 | return name; |
669 | } | |
670 | ||
671 | DEFUN ("fset", Ffset, Sfset, 2, 2, 0, | |
8c0b5540 RS |
672 | "Set SYMBOL's function definition to DEFINITION, and return DEFINITION.") |
673 | (symbol, definition) | |
674 | register Lisp_Object symbol, definition; | |
d9c2a0f2 EN |
675 | { |
676 | CHECK_SYMBOL (symbol, 0); | |
677 | if (NILP (symbol) || EQ (symbol, Qt)) | |
678 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); | |
679 | if (!NILP (Vautoload_queue) && !EQ (XSYMBOL (symbol)->function, Qunbound)) | |
680 | Vautoload_queue = Fcons (Fcons (symbol, XSYMBOL (symbol)->function), | |
7921925c | 681 | Vautoload_queue); |
8c0b5540 | 682 | XSYMBOL (symbol)->function = definition; |
f845f2c9 | 683 | /* Handle automatic advice activation */ |
d9c2a0f2 | 684 | if (CONSP (XSYMBOL (symbol)->plist) && !NILP (Fget (symbol, Qad_advice_info))) |
f845f2c9 | 685 | { |
c1307a23 | 686 | call2 (Qad_activate_internal, symbol, Qnil); |
8c0b5540 | 687 | definition = XSYMBOL (symbol)->function; |
f845f2c9 | 688 | } |
8c0b5540 | 689 | return definition; |
7921925c JB |
690 | } |
691 | ||
80df38a2 | 692 | DEFUN ("defalias", Fdefalias, Sdefalias, 2, 2, 0, |
73e0d965 | 693 | "Set SYMBOL's function definition to DEFINITION, and return DEFINITION.\n\ |
fc08c367 | 694 | Associates the function with the current load file, if any.") |
73e0d965 RS |
695 | (symbol, definition) |
696 | register Lisp_Object symbol, definition; | |
fc08c367 | 697 | { |
32f532b7 | 698 | definition = Ffset (symbol, definition); |
d9c2a0f2 | 699 | LOADHIST_ATTACH (symbol); |
73e0d965 | 700 | return definition; |
fc08c367 RS |
701 | } |
702 | ||
7921925c JB |
703 | DEFUN ("setplist", Fsetplist, Ssetplist, 2, 2, 0, |
704 | "Set SYMBOL's property list to NEWVAL, and return NEWVAL.") | |
d9c2a0f2 EN |
705 | (symbol, newplist) |
706 | register Lisp_Object symbol, newplist; | |
7921925c | 707 | { |
d9c2a0f2 EN |
708 | CHECK_SYMBOL (symbol, 0); |
709 | XSYMBOL (symbol)->plist = newplist; | |
7921925c JB |
710 | return newplist; |
711 | } | |
ffd56f97 | 712 | |
6f0e897f DL |
713 | DEFUN ("subr-arity", Fsubr_arity, Ssubr_arity, 1, 1, 0, |
714 | "Return minimum and maximum number of args allowed for SUBR.\n\ | |
715 | SUBR must be a built-in function.\n\ | |
716 | The returned value is a pair (MIN . MAX). MIN is the minimum number\n\ | |
717 | of args. MAX is the maximum number or the symbol `many', for a\n\ | |
718 | function with `&rest' args, or `unevalled' for a special form.") | |
719 | (subr) | |
720 | Lisp_Object subr; | |
721 | { | |
722 | short minargs, maxargs; | |
723 | if (!SUBRP (subr)) | |
724 | wrong_type_argument (Qsubrp, subr); | |
725 | minargs = XSUBR (subr)->min_args; | |
726 | maxargs = XSUBR (subr)->max_args; | |
727 | if (maxargs == MANY) | |
728 | return Fcons (make_number (minargs), Qmany); | |
729 | else if (maxargs == UNEVALLED) | |
730 | return Fcons (make_number (minargs), Qunevalled); | |
731 | else | |
732 | return Fcons (make_number (minargs), make_number (maxargs)); | |
733 | } | |
734 | ||
7921925c JB |
735 | \f |
736 | /* Getting and setting values of symbols */ | |
737 | ||
738 | /* Given the raw contents of a symbol value cell, | |
739 | return the Lisp value of the symbol. | |
740 | This does not handle buffer-local variables; use | |
741 | swap_in_symval_forwarding for that. */ | |
742 | ||
743 | Lisp_Object | |
744 | do_symval_forwarding (valcontents) | |
745 | register Lisp_Object valcontents; | |
746 | { | |
747 | register Lisp_Object val; | |
46b2ac21 KH |
748 | int offset; |
749 | if (MISCP (valcontents)) | |
324a6eef | 750 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
751 | { |
752 | case Lisp_Misc_Intfwd: | |
753 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
754 | return val; | |
7921925c | 755 | |
46b2ac21 KH |
756 | case Lisp_Misc_Boolfwd: |
757 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
7921925c | 758 | |
46b2ac21 KH |
759 | case Lisp_Misc_Objfwd: |
760 | return *XOBJFWD (valcontents)->objvar; | |
7921925c | 761 | |
46b2ac21 KH |
762 | case Lisp_Misc_Buffer_Objfwd: |
763 | offset = XBUFFER_OBJFWD (valcontents)->offset; | |
f6cd0527 | 764 | return PER_BUFFER_VALUE (current_buffer, offset); |
7403b5c8 | 765 | |
e5f8af9e KH |
766 | case Lisp_Misc_Kboard_Objfwd: |
767 | offset = XKBOARD_OBJFWD (valcontents)->offset; | |
768 | return *(Lisp_Object *)(offset + (char *)current_kboard); | |
46b2ac21 | 769 | } |
7921925c JB |
770 | return valcontents; |
771 | } | |
772 | ||
d9c2a0f2 EN |
773 | /* Store NEWVAL into SYMBOL, where VALCONTENTS is found in the value cell |
774 | of SYMBOL. If SYMBOL is buffer-local, VALCONTENTS should be the | |
7921925c JB |
775 | buffer-independent contents of the value cell: forwarded just one |
776 | step past the buffer-localness. */ | |
777 | ||
778 | void | |
d9c2a0f2 EN |
779 | store_symval_forwarding (symbol, valcontents, newval) |
780 | Lisp_Object symbol; | |
7921925c JB |
781 | register Lisp_Object valcontents, newval; |
782 | { | |
0220c518 | 783 | switch (SWITCH_ENUM_CAST (XTYPE (valcontents))) |
7921925c | 784 | { |
46b2ac21 | 785 | case Lisp_Misc: |
324a6eef | 786 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
787 | { |
788 | case Lisp_Misc_Intfwd: | |
789 | CHECK_NUMBER (newval, 1); | |
790 | *XINTFWD (valcontents)->intvar = XINT (newval); | |
e6c82a8d RS |
791 | if (*XINTFWD (valcontents)->intvar != XINT (newval)) |
792 | error ("Value out of range for variable `%s'", | |
d9c2a0f2 | 793 | XSYMBOL (symbol)->name->data); |
46b2ac21 KH |
794 | break; |
795 | ||
796 | case Lisp_Misc_Boolfwd: | |
797 | *XBOOLFWD (valcontents)->boolvar = NILP (newval) ? 0 : 1; | |
798 | break; | |
799 | ||
800 | case Lisp_Misc_Objfwd: | |
801 | *XOBJFWD (valcontents)->objvar = newval; | |
802 | break; | |
803 | ||
804 | case Lisp_Misc_Buffer_Objfwd: | |
805 | { | |
806 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
807 | Lisp_Object type; | |
808 | ||
f6cd0527 | 809 | type = PER_BUFFER_TYPE (offset); |
984ef137 KH |
810 | if (XINT (type) == -1) |
811 | error ("Variable %s is read-only", XSYMBOL (symbol)->name->data); | |
812 | ||
46b2ac21 KH |
813 | if (! NILP (type) && ! NILP (newval) |
814 | && XTYPE (newval) != XINT (type)) | |
815 | buffer_slot_type_mismatch (offset); | |
816 | ||
f6cd0527 | 817 | PER_BUFFER_VALUE (current_buffer, offset) = newval; |
46b2ac21 | 818 | } |
7403b5c8 KH |
819 | break; |
820 | ||
e5f8af9e KH |
821 | case Lisp_Misc_Kboard_Objfwd: |
822 | (*(Lisp_Object *)((char *)current_kboard | |
823 | + XKBOARD_OBJFWD (valcontents)->offset)) | |
7403b5c8 KH |
824 | = newval; |
825 | break; | |
826 | ||
46b2ac21 KH |
827 | default: |
828 | goto def; | |
829 | } | |
7921925c JB |
830 | break; |
831 | ||
7921925c | 832 | default: |
46b2ac21 | 833 | def: |
d9c2a0f2 | 834 | valcontents = XSYMBOL (symbol)->value; |
e9ebc175 KH |
835 | if (BUFFER_LOCAL_VALUEP (valcontents) |
836 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
b0c2d1c6 | 837 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue = newval; |
7921925c | 838 | else |
d9c2a0f2 | 839 | XSYMBOL (symbol)->value = newval; |
7921925c JB |
840 | } |
841 | } | |
842 | ||
b0d53add GM |
843 | /* Set up SYMBOL to refer to its global binding. |
844 | This makes it safe to alter the status of other bindings. */ | |
845 | ||
846 | void | |
847 | swap_in_global_binding (symbol) | |
848 | Lisp_Object symbol; | |
849 | { | |
850 | Lisp_Object valcontents, cdr; | |
851 | ||
852 | valcontents = XSYMBOL (symbol)->value; | |
853 | if (!BUFFER_LOCAL_VALUEP (valcontents) | |
854 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
855 | abort (); | |
856 | cdr = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
857 | ||
858 | /* Unload the previously loaded binding. */ | |
859 | Fsetcdr (XCAR (cdr), | |
860 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); | |
861 | ||
862 | /* Select the global binding in the symbol. */ | |
863 | XCAR (cdr) = cdr; | |
864 | store_symval_forwarding (symbol, valcontents, XCDR (cdr)); | |
865 | ||
866 | /* Indicate that the global binding is set up now. */ | |
867 | XBUFFER_LOCAL_VALUE (valcontents)->frame = Qnil; | |
868 | XBUFFER_LOCAL_VALUE (valcontents)->buffer = Qnil; | |
869 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; | |
870 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
871 | } | |
872 | ||
2829d05f | 873 | /* Set up the buffer-local symbol SYMBOL for validity in the current buffer. |
42e975f0 RS |
874 | VALCONTENTS is the contents of its value cell, |
875 | which points to a struct Lisp_Buffer_Local_Value. | |
876 | ||
877 | Return the value forwarded one step past the buffer-local stage. | |
878 | This could be another forwarding pointer. */ | |
7921925c JB |
879 | |
880 | static Lisp_Object | |
d9c2a0f2 EN |
881 | swap_in_symval_forwarding (symbol, valcontents) |
882 | Lisp_Object symbol, valcontents; | |
7921925c | 883 | { |
7921925c | 884 | register Lisp_Object tem1; |
b0c2d1c6 | 885 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
7921925c | 886 | |
42e975f0 RS |
887 | if (NILP (tem1) |
888 | || current_buffer != XBUFFER (tem1) | |
889 | || (XBUFFER_LOCAL_VALUE (valcontents)->check_frame | |
890 | && ! EQ (selected_frame, XBUFFER_LOCAL_VALUE (valcontents)->frame))) | |
7921925c | 891 | { |
42e975f0 | 892 | /* Unload the previously loaded binding. */ |
7539e11f | 893 | tem1 = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
8d4afcac | 894 | Fsetcdr (tem1, |
b0c2d1c6 | 895 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); |
42e975f0 | 896 | /* Choose the new binding. */ |
d9c2a0f2 | 897 | tem1 = assq_no_quit (symbol, current_buffer->local_var_alist); |
b0c2d1c6 RS |
898 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; |
899 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
a33ef3ab | 900 | if (NILP (tem1)) |
b0c2d1c6 RS |
901 | { |
902 | if (XBUFFER_LOCAL_VALUE (valcontents)->check_frame) | |
1cc04aed | 903 | tem1 = assq_no_quit (symbol, XFRAME (selected_frame)->param_alist); |
b0c2d1c6 RS |
904 | if (! NILP (tem1)) |
905 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 1; | |
906 | else | |
907 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
908 | } | |
909 | else | |
910 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 1; | |
911 | ||
42e975f0 | 912 | /* Load the new binding. */ |
7539e11f | 913 | XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr) = tem1; |
b0c2d1c6 | 914 | XSETBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer, current_buffer); |
1cc04aed | 915 | XBUFFER_LOCAL_VALUE (valcontents)->frame = selected_frame; |
b0c2d1c6 RS |
916 | store_symval_forwarding (symbol, |
917 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue, | |
8d4afcac | 918 | Fcdr (tem1)); |
7921925c | 919 | } |
b0c2d1c6 | 920 | return XBUFFER_LOCAL_VALUE (valcontents)->realvalue; |
7921925c JB |
921 | } |
922 | \f | |
14e76af9 JB |
923 | /* Find the value of a symbol, returning Qunbound if it's not bound. |
924 | This is helpful for code which just wants to get a variable's value | |
8e6208c5 | 925 | if it has one, without signaling an error. |
14e76af9 JB |
926 | Note that it must not be possible to quit |
927 | within this function. Great care is required for this. */ | |
7921925c | 928 | |
14e76af9 | 929 | Lisp_Object |
d9c2a0f2 EN |
930 | find_symbol_value (symbol) |
931 | Lisp_Object symbol; | |
7921925c | 932 | { |
dd8daec5 | 933 | register Lisp_Object valcontents; |
7921925c | 934 | register Lisp_Object val; |
d9c2a0f2 EN |
935 | CHECK_SYMBOL (symbol, 0); |
936 | valcontents = XSYMBOL (symbol)->value; | |
7921925c | 937 | |
aabf6bec KH |
938 | if (BUFFER_LOCAL_VALUEP (valcontents) |
939 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
2829d05f RS |
940 | valcontents = swap_in_symval_forwarding (symbol, valcontents, |
941 | current_buffer); | |
7921925c | 942 | |
536b772a KH |
943 | if (MISCP (valcontents)) |
944 | { | |
324a6eef | 945 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
946 | { |
947 | case Lisp_Misc_Intfwd: | |
948 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
949 | return val; | |
7921925c | 950 | |
46b2ac21 KH |
951 | case Lisp_Misc_Boolfwd: |
952 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
7921925c | 953 | |
46b2ac21 KH |
954 | case Lisp_Misc_Objfwd: |
955 | return *XOBJFWD (valcontents)->objvar; | |
7921925c | 956 | |
46b2ac21 | 957 | case Lisp_Misc_Buffer_Objfwd: |
f6cd0527 | 958 | return PER_BUFFER_VALUE (current_buffer, |
999b32fd | 959 | XBUFFER_OBJFWD (valcontents)->offset); |
7403b5c8 | 960 | |
e5f8af9e KH |
961 | case Lisp_Misc_Kboard_Objfwd: |
962 | return *(Lisp_Object *)(XKBOARD_OBJFWD (valcontents)->offset | |
963 | + (char *)current_kboard); | |
46b2ac21 | 964 | } |
7921925c JB |
965 | } |
966 | ||
967 | return valcontents; | |
968 | } | |
969 | ||
14e76af9 JB |
970 | DEFUN ("symbol-value", Fsymbol_value, Ssymbol_value, 1, 1, 0, |
971 | "Return SYMBOL's value. Error if that is void.") | |
d9c2a0f2 EN |
972 | (symbol) |
973 | Lisp_Object symbol; | |
14e76af9 | 974 | { |
0671d7c0 | 975 | Lisp_Object val; |
14e76af9 | 976 | |
d9c2a0f2 | 977 | val = find_symbol_value (symbol); |
14e76af9 | 978 | if (EQ (val, Qunbound)) |
d9c2a0f2 | 979 | return Fsignal (Qvoid_variable, Fcons (symbol, Qnil)); |
14e76af9 JB |
980 | else |
981 | return val; | |
982 | } | |
983 | ||
7921925c JB |
984 | DEFUN ("set", Fset, Sset, 2, 2, 0, |
985 | "Set SYMBOL's value to NEWVAL, and return NEWVAL.") | |
d9c2a0f2 EN |
986 | (symbol, newval) |
987 | register Lisp_Object symbol, newval; | |
05ef7169 | 988 | { |
2829d05f | 989 | return set_internal (symbol, newval, current_buffer, 0); |
05ef7169 RS |
990 | } |
991 | ||
1f35ce36 RS |
992 | /* Return 1 if SYMBOL currently has a let-binding |
993 | which was made in the buffer that is now current. */ | |
994 | ||
995 | static int | |
996 | let_shadows_buffer_binding_p (symbol) | |
997 | Lisp_Object symbol; | |
998 | { | |
999 | struct specbinding *p; | |
1000 | ||
1001 | for (p = specpdl_ptr - 1; p >= specpdl; p--) | |
f0930f35 GM |
1002 | if (p->func == 0 |
1003 | && CONSP (p->symbol) | |
1004 | && EQ (symbol, XCAR (p->symbol)) | |
1f35ce36 RS |
1005 | && XBUFFER (XCDR (XCDR (p->symbol))) == current_buffer) |
1006 | return 1; | |
1007 | ||
1008 | return 0; | |
1009 | } | |
1010 | ||
25638b07 | 1011 | /* Store the value NEWVAL into SYMBOL. |
2829d05f RS |
1012 | If buffer-locality is an issue, BUF specifies which buffer to use. |
1013 | (0 stands for the current buffer.) | |
1014 | ||
05ef7169 RS |
1015 | If BINDFLAG is zero, then if this symbol is supposed to become |
1016 | local in every buffer where it is set, then we make it local. | |
1017 | If BINDFLAG is nonzero, we don't do that. */ | |
1018 | ||
1019 | Lisp_Object | |
2829d05f | 1020 | set_internal (symbol, newval, buf, bindflag) |
05ef7169 | 1021 | register Lisp_Object symbol, newval; |
2829d05f | 1022 | struct buffer *buf; |
05ef7169 | 1023 | int bindflag; |
7921925c | 1024 | { |
1bfcade3 | 1025 | int voide = EQ (newval, Qunbound); |
7921925c | 1026 | |
4c47c973 | 1027 | register Lisp_Object valcontents, innercontents, tem1, current_alist_element; |
7921925c | 1028 | |
2829d05f RS |
1029 | if (buf == 0) |
1030 | buf = current_buffer; | |
1031 | ||
1032 | /* If restoring in a dead buffer, do nothing. */ | |
1033 | if (NILP (buf->name)) | |
1034 | return newval; | |
1035 | ||
d9c2a0f2 | 1036 | CHECK_SYMBOL (symbol, 0); |
5c5aad07 KH |
1037 | if (NILP (symbol) || EQ (symbol, Qt) |
1038 | || (XSYMBOL (symbol)->name->data[0] == ':' | |
899cb8f0 | 1039 | && EQ (XSYMBOL (symbol)->obarray, initial_obarray) |
f50d847a | 1040 | && !EQ (newval, symbol))) |
d9c2a0f2 | 1041 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); |
4c47c973 GM |
1042 | |
1043 | innercontents = valcontents = XSYMBOL (symbol)->value; | |
7921925c | 1044 | |
e9ebc175 | 1045 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1046 | { |
999b32fd | 1047 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 | 1048 | int idx = PER_BUFFER_IDX (offset); |
999b32fd GM |
1049 | if (idx > 0 |
1050 | && !bindflag | |
1051 | && !let_shadows_buffer_binding_p (symbol)) | |
f6cd0527 | 1052 | SET_PER_BUFFER_VALUE_P (buf, idx, 1); |
7921925c JB |
1053 | } |
1054 | ||
e9ebc175 KH |
1055 | else if (BUFFER_LOCAL_VALUEP (valcontents) |
1056 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c | 1057 | { |
42e975f0 RS |
1058 | /* valcontents is a struct Lisp_Buffer_Local_Value. */ |
1059 | ||
1060 | /* What binding is loaded right now? */ | |
b0c2d1c6 | 1061 | current_alist_element |
7539e11f | 1062 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
d8cafeb5 JB |
1063 | |
1064 | /* If the current buffer is not the buffer whose binding is | |
42e975f0 RS |
1065 | loaded, or if there may be frame-local bindings and the frame |
1066 | isn't the right one, or if it's a Lisp_Buffer_Local_Value and | |
1067 | the default binding is loaded, the loaded binding may be the | |
1068 | wrong one. */ | |
8801a864 KR |
1069 | if (!BUFFERP (XBUFFER_LOCAL_VALUE (valcontents)->buffer) |
1070 | || buf != XBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer) | |
42e975f0 RS |
1071 | || (XBUFFER_LOCAL_VALUE (valcontents)->check_frame |
1072 | && !EQ (selected_frame, XBUFFER_LOCAL_VALUE (valcontents)->frame)) | |
1073 | || (BUFFER_LOCAL_VALUEP (valcontents) | |
1074 | && EQ (XCAR (current_alist_element), | |
1075 | current_alist_element))) | |
7921925c | 1076 | { |
42e975f0 RS |
1077 | /* The currently loaded binding is not necessarily valid. |
1078 | We need to unload it, and choose a new binding. */ | |
1079 | ||
1080 | /* Write out `realvalue' to the old loaded binding. */ | |
d8cafeb5 | 1081 | Fsetcdr (current_alist_element, |
b0c2d1c6 | 1082 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); |
7921925c | 1083 | |
42e975f0 | 1084 | /* Find the new binding. */ |
2829d05f | 1085 | tem1 = Fassq (symbol, buf->local_var_alist); |
b0c2d1c6 RS |
1086 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 1; |
1087 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; | |
1088 | ||
a33ef3ab | 1089 | if (NILP (tem1)) |
d8cafeb5 JB |
1090 | { |
1091 | /* This buffer still sees the default value. */ | |
1092 | ||
1093 | /* If the variable is a Lisp_Some_Buffer_Local_Value, | |
05ef7169 | 1094 | or if this is `let' rather than `set', |
d8cafeb5 | 1095 | make CURRENT-ALIST-ELEMENT point to itself, |
1f35ce36 RS |
1096 | indicating that we're seeing the default value. |
1097 | Likewise if the variable has been let-bound | |
1098 | in the current buffer. */ | |
1099 | if (bindflag || SOME_BUFFER_LOCAL_VALUEP (valcontents) | |
1100 | || let_shadows_buffer_binding_p (symbol)) | |
b0c2d1c6 RS |
1101 | { |
1102 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
1103 | ||
1104 | if (XBUFFER_LOCAL_VALUE (valcontents)->check_frame) | |
1cc04aed GM |
1105 | tem1 = Fassq (symbol, |
1106 | XFRAME (selected_frame)->param_alist); | |
d8cafeb5 | 1107 | |
b0c2d1c6 RS |
1108 | if (! NILP (tem1)) |
1109 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 1; | |
1110 | else | |
1111 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
1112 | } | |
05ef7169 | 1113 | /* If it's a Lisp_Buffer_Local_Value, being set not bound, |
1f35ce36 RS |
1114 | and we're not within a let that was made for this buffer, |
1115 | create a new buffer-local binding for the variable. | |
1116 | That means, give this buffer a new assoc for a local value | |
42e975f0 | 1117 | and load that binding. */ |
d8cafeb5 JB |
1118 | else |
1119 | { | |
d9c2a0f2 | 1120 | tem1 = Fcons (symbol, Fcdr (current_alist_element)); |
2829d05f RS |
1121 | buf->local_var_alist |
1122 | = Fcons (tem1, buf->local_var_alist); | |
d8cafeb5 JB |
1123 | } |
1124 | } | |
b0c2d1c6 | 1125 | |
42e975f0 | 1126 | /* Record which binding is now loaded. */ |
7539e11f | 1127 | XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr) |
8d4afcac | 1128 | = tem1; |
d8cafeb5 | 1129 | |
42e975f0 | 1130 | /* Set `buffer' and `frame' slots for thebinding now loaded. */ |
2829d05f | 1131 | XSETBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer, buf); |
1cc04aed | 1132 | XBUFFER_LOCAL_VALUE (valcontents)->frame = selected_frame; |
7921925c | 1133 | } |
4c47c973 | 1134 | innercontents = XBUFFER_LOCAL_VALUE (valcontents)->realvalue; |
7921925c | 1135 | } |
d8cafeb5 | 1136 | |
7921925c JB |
1137 | /* If storing void (making the symbol void), forward only through |
1138 | buffer-local indicator, not through Lisp_Objfwd, etc. */ | |
1139 | if (voide) | |
d9c2a0f2 | 1140 | store_symval_forwarding (symbol, Qnil, newval); |
7921925c | 1141 | else |
4c47c973 GM |
1142 | store_symval_forwarding (symbol, innercontents, newval); |
1143 | ||
1144 | /* If we just set a variable whose current binding is frame-local, | |
1145 | store the new value in the frame parameter too. */ | |
1146 | ||
1147 | if (BUFFER_LOCAL_VALUEP (valcontents) | |
1148 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
1149 | { | |
1150 | /* What binding is loaded right now? */ | |
1151 | current_alist_element | |
1152 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); | |
1153 | ||
1154 | /* If the current buffer is not the buffer whose binding is | |
1155 | loaded, or if there may be frame-local bindings and the frame | |
1156 | isn't the right one, or if it's a Lisp_Buffer_Local_Value and | |
1157 | the default binding is loaded, the loaded binding may be the | |
1158 | wrong one. */ | |
1159 | if (XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame) | |
1160 | XCDR (current_alist_element) = newval; | |
1161 | } | |
d8cafeb5 | 1162 | |
7921925c JB |
1163 | return newval; |
1164 | } | |
1165 | \f | |
1166 | /* Access or set a buffer-local symbol's default value. */ | |
1167 | ||
d9c2a0f2 | 1168 | /* Return the default value of SYMBOL, but don't check for voidness. |
1bfcade3 | 1169 | Return Qunbound if it is void. */ |
7921925c JB |
1170 | |
1171 | Lisp_Object | |
d9c2a0f2 EN |
1172 | default_value (symbol) |
1173 | Lisp_Object symbol; | |
7921925c JB |
1174 | { |
1175 | register Lisp_Object valcontents; | |
1176 | ||
d9c2a0f2 EN |
1177 | CHECK_SYMBOL (symbol, 0); |
1178 | valcontents = XSYMBOL (symbol)->value; | |
7921925c JB |
1179 | |
1180 | /* For a built-in buffer-local variable, get the default value | |
1181 | rather than letting do_symval_forwarding get the current value. */ | |
e9ebc175 | 1182 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1183 | { |
999b32fd | 1184 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 GM |
1185 | if (PER_BUFFER_IDX (offset) != 0) |
1186 | return PER_BUFFER_DEFAULT (offset); | |
7921925c JB |
1187 | } |
1188 | ||
1189 | /* Handle user-created local variables. */ | |
e9ebc175 KH |
1190 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1191 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c JB |
1192 | { |
1193 | /* If var is set up for a buffer that lacks a local value for it, | |
1194 | the current value is nominally the default value. | |
42e975f0 | 1195 | But the `realvalue' slot may be more up to date, since |
7921925c JB |
1196 | ordinary setq stores just that slot. So use that. */ |
1197 | Lisp_Object current_alist_element, alist_element_car; | |
1198 | current_alist_element | |
7539e11f KR |
1199 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
1200 | alist_element_car = XCAR (current_alist_element); | |
7921925c | 1201 | if (EQ (alist_element_car, current_alist_element)) |
b0c2d1c6 | 1202 | return do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue); |
7921925c | 1203 | else |
7539e11f | 1204 | return XCDR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
7921925c JB |
1205 | } |
1206 | /* For other variables, get the current value. */ | |
1207 | return do_symval_forwarding (valcontents); | |
1208 | } | |
1209 | ||
1210 | DEFUN ("default-boundp", Fdefault_boundp, Sdefault_boundp, 1, 1, 0, | |
c2124165 | 1211 | "Return t if SYMBOL has a non-void default value.\n\ |
7921925c JB |
1212 | This is the value that is seen in buffers that do not have their own values\n\ |
1213 | for this variable.") | |
d9c2a0f2 EN |
1214 | (symbol) |
1215 | Lisp_Object symbol; | |
7921925c JB |
1216 | { |
1217 | register Lisp_Object value; | |
1218 | ||
d9c2a0f2 | 1219 | value = default_value (symbol); |
1bfcade3 | 1220 | return (EQ (value, Qunbound) ? Qnil : Qt); |
7921925c JB |
1221 | } |
1222 | ||
1223 | DEFUN ("default-value", Fdefault_value, Sdefault_value, 1, 1, 0, | |
1224 | "Return SYMBOL's default value.\n\ | |
1225 | This is the value that is seen in buffers that do not have their own values\n\ | |
1226 | for this variable. The default value is meaningful for variables with\n\ | |
1227 | local bindings in certain buffers.") | |
d9c2a0f2 EN |
1228 | (symbol) |
1229 | Lisp_Object symbol; | |
7921925c JB |
1230 | { |
1231 | register Lisp_Object value; | |
1232 | ||
d9c2a0f2 | 1233 | value = default_value (symbol); |
1bfcade3 | 1234 | if (EQ (value, Qunbound)) |
d9c2a0f2 | 1235 | return Fsignal (Qvoid_variable, Fcons (symbol, Qnil)); |
7921925c JB |
1236 | return value; |
1237 | } | |
1238 | ||
1239 | DEFUN ("set-default", Fset_default, Sset_default, 2, 2, 0, | |
1240 | "Set SYMBOL's default value to VAL. SYMBOL and VAL are evaluated.\n\ | |
1241 | The default value is seen in buffers that do not have their own values\n\ | |
1242 | for this variable.") | |
d9c2a0f2 EN |
1243 | (symbol, value) |
1244 | Lisp_Object symbol, value; | |
7921925c JB |
1245 | { |
1246 | register Lisp_Object valcontents, current_alist_element, alist_element_buffer; | |
1247 | ||
d9c2a0f2 EN |
1248 | CHECK_SYMBOL (symbol, 0); |
1249 | valcontents = XSYMBOL (symbol)->value; | |
7921925c JB |
1250 | |
1251 | /* Handle variables like case-fold-search that have special slots | |
1252 | in the buffer. Make them work apparently like Lisp_Buffer_Local_Value | |
1253 | variables. */ | |
e9ebc175 | 1254 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1255 | { |
999b32fd | 1256 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 | 1257 | int idx = PER_BUFFER_IDX (offset); |
7921925c | 1258 | |
f6cd0527 | 1259 | PER_BUFFER_DEFAULT (offset) = value; |
984ef137 KH |
1260 | |
1261 | /* If this variable is not always local in all buffers, | |
1262 | set it in the buffers that don't nominally have a local value. */ | |
999b32fd | 1263 | if (idx > 0) |
7921925c | 1264 | { |
999b32fd GM |
1265 | struct buffer *b; |
1266 | ||
7921925c | 1267 | for (b = all_buffers; b; b = b->next) |
f6cd0527 GM |
1268 | if (!PER_BUFFER_VALUE_P (b, idx)) |
1269 | PER_BUFFER_VALUE (b, offset) = value; | |
7921925c JB |
1270 | } |
1271 | return value; | |
1272 | } | |
1273 | ||
e9ebc175 KH |
1274 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1275 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 1276 | return Fset (symbol, value); |
7921925c | 1277 | |
42e975f0 | 1278 | /* Store new value into the DEFAULT-VALUE slot. */ |
7539e11f | 1279 | XCDR (XBUFFER_LOCAL_VALUE (valcontents)->cdr) = value; |
7921925c | 1280 | |
42e975f0 | 1281 | /* If the default binding is now loaded, set the REALVALUE slot too. */ |
8d4afcac | 1282 | current_alist_element |
7539e11f | 1283 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
7921925c JB |
1284 | alist_element_buffer = Fcar (current_alist_element); |
1285 | if (EQ (alist_element_buffer, current_alist_element)) | |
b0c2d1c6 | 1286 | store_symval_forwarding (symbol, XBUFFER_LOCAL_VALUE (valcontents)->realvalue, |
8d4afcac | 1287 | value); |
7921925c JB |
1288 | |
1289 | return value; | |
1290 | } | |
1291 | ||
1292 | DEFUN ("setq-default", Fsetq_default, Ssetq_default, 2, UNEVALLED, 0, | |
0412bf67 RS |
1293 | "Set the default value of variable VAR to VALUE.\n\ |
1294 | VAR, the variable name, is literal (not evaluated);\n\ | |
1295 | VALUE is an expression and it is evaluated.\n\ | |
1296 | The default value of a variable is seen in buffers\n\ | |
1297 | that do not have their own values for the variable.\n\ | |
1298 | \n\ | |
1299 | More generally, you can use multiple variables and values, as in\n\ | |
d9c2a0f2 EN |
1300 | (setq-default SYMBOL VALUE SYMBOL VALUE...)\n\ |
1301 | This sets each SYMBOL's default value to the corresponding VALUE.\n\ | |
1302 | The VALUE for the Nth SYMBOL can refer to the new default values\n\ | |
0412bf67 | 1303 | of previous SYMs.") |
7921925c JB |
1304 | (args) |
1305 | Lisp_Object args; | |
1306 | { | |
1307 | register Lisp_Object args_left; | |
d9c2a0f2 | 1308 | register Lisp_Object val, symbol; |
7921925c JB |
1309 | struct gcpro gcpro1; |
1310 | ||
a33ef3ab | 1311 | if (NILP (args)) |
7921925c JB |
1312 | return Qnil; |
1313 | ||
1314 | args_left = args; | |
1315 | GCPRO1 (args); | |
1316 | ||
1317 | do | |
1318 | { | |
1319 | val = Feval (Fcar (Fcdr (args_left))); | |
d9c2a0f2 EN |
1320 | symbol = Fcar (args_left); |
1321 | Fset_default (symbol, val); | |
7921925c JB |
1322 | args_left = Fcdr (Fcdr (args_left)); |
1323 | } | |
a33ef3ab | 1324 | while (!NILP (args_left)); |
7921925c JB |
1325 | |
1326 | UNGCPRO; | |
1327 | return val; | |
1328 | } | |
1329 | \f | |
a5ca2b75 JB |
1330 | /* Lisp functions for creating and removing buffer-local variables. */ |
1331 | ||
7921925c JB |
1332 | DEFUN ("make-variable-buffer-local", Fmake_variable_buffer_local, Smake_variable_buffer_local, |
1333 | 1, 1, "vMake Variable Buffer Local: ", | |
42e975f0 RS |
1334 | "Make VARIABLE become buffer-local whenever it is set.\n\ |
1335 | At any time, the value for the current buffer is in effect,\n\ | |
1336 | unless the variable has never been set in this buffer,\n\ | |
1337 | in which case the default value is in effect.\n\ | |
1338 | Note that binding the variable with `let', or setting it while\n\ | |
1339 | a `let'-style binding made in this buffer is in effect,\n\ | |
1340 | does not make the variable buffer-local.\n\ | |
1341 | \n\ | |
7921925c | 1342 | The function `default-value' gets the default value and `set-default' sets it.") |
d9c2a0f2 EN |
1343 | (variable) |
1344 | register Lisp_Object variable; | |
7921925c | 1345 | { |
8d4afcac | 1346 | register Lisp_Object tem, valcontents, newval; |
7921925c | 1347 | |
d9c2a0f2 | 1348 | CHECK_SYMBOL (variable, 0); |
7921925c | 1349 | |
d9c2a0f2 EN |
1350 | valcontents = XSYMBOL (variable)->value; |
1351 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents)) | |
1352 | error ("Symbol %s may not be buffer-local", XSYMBOL (variable)->name->data); | |
7921925c | 1353 | |
e9ebc175 | 1354 | if (BUFFER_LOCAL_VALUEP (valcontents) || BUFFER_OBJFWDP (valcontents)) |
d9c2a0f2 | 1355 | return variable; |
e9ebc175 | 1356 | if (SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c | 1357 | { |
d9c2a0f2 EN |
1358 | XMISCTYPE (XSYMBOL (variable)->value) = Lisp_Misc_Buffer_Local_Value; |
1359 | return variable; | |
7921925c JB |
1360 | } |
1361 | if (EQ (valcontents, Qunbound)) | |
d9c2a0f2 EN |
1362 | XSYMBOL (variable)->value = Qnil; |
1363 | tem = Fcons (Qnil, Fsymbol_value (variable)); | |
7539e11f | 1364 | XCAR (tem) = tem; |
8d4afcac | 1365 | newval = allocate_misc (); |
324a6eef | 1366 | XMISCTYPE (newval) = Lisp_Misc_Buffer_Local_Value; |
b0c2d1c6 RS |
1367 | XBUFFER_LOCAL_VALUE (newval)->realvalue = XSYMBOL (variable)->value; |
1368 | XBUFFER_LOCAL_VALUE (newval)->buffer = Fcurrent_buffer (); | |
1369 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
42e975f0 | 1370 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; |
b0c2d1c6 RS |
1371 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; |
1372 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 0; | |
1373 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
d9c2a0f2 EN |
1374 | XSYMBOL (variable)->value = newval; |
1375 | return variable; | |
7921925c JB |
1376 | } |
1377 | ||
1378 | DEFUN ("make-local-variable", Fmake_local_variable, Smake_local_variable, | |
1379 | 1, 1, "vMake Local Variable: ", | |
1380 | "Make VARIABLE have a separate value in the current buffer.\n\ | |
1381 | Other buffers will continue to share a common default value.\n\ | |
a782f0d5 RS |
1382 | \(The buffer-local value of VARIABLE starts out as the same value\n\ |
1383 | VARIABLE previously had. If VARIABLE was void, it remains void.\)\n\ | |
05edf8bd KH |
1384 | See also `make-variable-buffer-local'.\n\ |
1385 | \n\ | |
7921925c JB |
1386 | If the variable is already arranged to become local when set,\n\ |
1387 | this function causes a local value to exist for this buffer,\n\ | |
62476adc RS |
1388 | just as setting the variable would do.\n\ |
1389 | \n\ | |
05edf8bd KH |
1390 | This function returns VARIABLE, and therefore\n\ |
1391 | (set (make-local-variable 'VARIABLE) VALUE-EXP)\n\ | |
1392 | works.\n\ | |
1393 | \n\ | |
62476adc RS |
1394 | Do not use `make-local-variable' to make a hook variable buffer-local.\n\ |
1395 | Use `make-local-hook' instead.") | |
d9c2a0f2 EN |
1396 | (variable) |
1397 | register Lisp_Object variable; | |
7921925c JB |
1398 | { |
1399 | register Lisp_Object tem, valcontents; | |
1400 | ||
d9c2a0f2 | 1401 | CHECK_SYMBOL (variable, 0); |
7921925c | 1402 | |
d9c2a0f2 EN |
1403 | valcontents = XSYMBOL (variable)->value; |
1404 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents)) | |
1405 | error ("Symbol %s may not be buffer-local", XSYMBOL (variable)->name->data); | |
7921925c | 1406 | |
e9ebc175 | 1407 | if (BUFFER_LOCAL_VALUEP (valcontents) || BUFFER_OBJFWDP (valcontents)) |
7921925c | 1408 | { |
d9c2a0f2 | 1409 | tem = Fboundp (variable); |
7403b5c8 | 1410 | |
7921925c JB |
1411 | /* Make sure the symbol has a local value in this particular buffer, |
1412 | by setting it to the same value it already has. */ | |
d9c2a0f2 EN |
1413 | Fset (variable, (EQ (tem, Qt) ? Fsymbol_value (variable) : Qunbound)); |
1414 | return variable; | |
7921925c | 1415 | } |
42e975f0 | 1416 | /* Make sure symbol is set up to hold per-buffer values. */ |
e9ebc175 | 1417 | if (!SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c | 1418 | { |
8d4afcac | 1419 | Lisp_Object newval; |
7921925c | 1420 | tem = Fcons (Qnil, do_symval_forwarding (valcontents)); |
7539e11f | 1421 | XCAR (tem) = tem; |
8d4afcac | 1422 | newval = allocate_misc (); |
324a6eef | 1423 | XMISCTYPE (newval) = Lisp_Misc_Some_Buffer_Local_Value; |
b0c2d1c6 RS |
1424 | XBUFFER_LOCAL_VALUE (newval)->realvalue = XSYMBOL (variable)->value; |
1425 | XBUFFER_LOCAL_VALUE (newval)->buffer = Qnil; | |
1426 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
1427 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; | |
1428 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; | |
1429 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 0; | |
1430 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
d9c2a0f2 | 1431 | XSYMBOL (variable)->value = newval; |
7921925c | 1432 | } |
42e975f0 | 1433 | /* Make sure this buffer has its own value of symbol. */ |
d9c2a0f2 | 1434 | tem = Fassq (variable, current_buffer->local_var_alist); |
a33ef3ab | 1435 | if (NILP (tem)) |
7921925c | 1436 | { |
a5d004a1 RS |
1437 | /* Swap out any local binding for some other buffer, and make |
1438 | sure the current value is permanently recorded, if it's the | |
1439 | default value. */ | |
d9c2a0f2 | 1440 | find_symbol_value (variable); |
a5d004a1 | 1441 | |
7921925c | 1442 | current_buffer->local_var_alist |
7539e11f | 1443 | = Fcons (Fcons (variable, XCDR (XBUFFER_LOCAL_VALUE (XSYMBOL (variable)->value)->cdr)), |
7921925c JB |
1444 | current_buffer->local_var_alist); |
1445 | ||
1446 | /* Make sure symbol does not think it is set up for this buffer; | |
42e975f0 | 1447 | force it to look once again for this buffer's value. */ |
7921925c | 1448 | { |
8d4afcac | 1449 | Lisp_Object *pvalbuf; |
a5d004a1 | 1450 | |
d9c2a0f2 | 1451 | valcontents = XSYMBOL (variable)->value; |
a5d004a1 | 1452 | |
b0c2d1c6 | 1453 | pvalbuf = &XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
8d4afcac KH |
1454 | if (current_buffer == XBUFFER (*pvalbuf)) |
1455 | *pvalbuf = Qnil; | |
b0c2d1c6 | 1456 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; |
7921925c | 1457 | } |
7921925c | 1458 | } |
a5ca2b75 | 1459 | |
42e975f0 RS |
1460 | /* If the symbol forwards into a C variable, then load the binding |
1461 | for this buffer now. If C code modifies the variable before we | |
1462 | load the binding in, then that new value will clobber the default | |
1463 | binding the next time we unload it. */ | |
b0c2d1c6 | 1464 | valcontents = XBUFFER_LOCAL_VALUE (XSYMBOL (variable)->value)->realvalue; |
e9ebc175 | 1465 | if (INTFWDP (valcontents) || BOOLFWDP (valcontents) || OBJFWDP (valcontents)) |
d9c2a0f2 | 1466 | swap_in_symval_forwarding (variable, XSYMBOL (variable)->value); |
a5ca2b75 | 1467 | |
d9c2a0f2 | 1468 | return variable; |
7921925c JB |
1469 | } |
1470 | ||
1471 | DEFUN ("kill-local-variable", Fkill_local_variable, Skill_local_variable, | |
1472 | 1, 1, "vKill Local Variable: ", | |
1473 | "Make VARIABLE no longer have a separate value in the current buffer.\n\ | |
1474 | From now on the default value will apply in this buffer.") | |
d9c2a0f2 EN |
1475 | (variable) |
1476 | register Lisp_Object variable; | |
7921925c JB |
1477 | { |
1478 | register Lisp_Object tem, valcontents; | |
1479 | ||
d9c2a0f2 | 1480 | CHECK_SYMBOL (variable, 0); |
7921925c | 1481 | |
d9c2a0f2 | 1482 | valcontents = XSYMBOL (variable)->value; |
7921925c | 1483 | |
e9ebc175 | 1484 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1485 | { |
999b32fd | 1486 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 | 1487 | int idx = PER_BUFFER_IDX (offset); |
7921925c | 1488 | |
999b32fd | 1489 | if (idx > 0) |
7921925c | 1490 | { |
f6cd0527 GM |
1491 | SET_PER_BUFFER_VALUE_P (current_buffer, idx, 0); |
1492 | PER_BUFFER_VALUE (current_buffer, offset) | |
1493 | = PER_BUFFER_DEFAULT (offset); | |
7921925c | 1494 | } |
d9c2a0f2 | 1495 | return variable; |
7921925c JB |
1496 | } |
1497 | ||
e9ebc175 KH |
1498 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1499 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 1500 | return variable; |
7921925c | 1501 | |
42e975f0 | 1502 | /* Get rid of this buffer's alist element, if any. */ |
7921925c | 1503 | |
d9c2a0f2 | 1504 | tem = Fassq (variable, current_buffer->local_var_alist); |
a33ef3ab | 1505 | if (!NILP (tem)) |
8d4afcac KH |
1506 | current_buffer->local_var_alist |
1507 | = Fdelq (tem, current_buffer->local_var_alist); | |
7921925c | 1508 | |
42e975f0 RS |
1509 | /* If the symbol is set up with the current buffer's binding |
1510 | loaded, recompute its value. We have to do it now, or else | |
1511 | forwarded objects won't work right. */ | |
7921925c | 1512 | { |
8d4afcac | 1513 | Lisp_Object *pvalbuf; |
d9c2a0f2 | 1514 | valcontents = XSYMBOL (variable)->value; |
b0c2d1c6 | 1515 | pvalbuf = &XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
8d4afcac | 1516 | if (current_buffer == XBUFFER (*pvalbuf)) |
79c83e03 KH |
1517 | { |
1518 | *pvalbuf = Qnil; | |
b0c2d1c6 | 1519 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; |
978dd578 | 1520 | find_symbol_value (variable); |
79c83e03 | 1521 | } |
7921925c JB |
1522 | } |
1523 | ||
d9c2a0f2 | 1524 | return variable; |
7921925c | 1525 | } |
62476adc | 1526 | |
b0c2d1c6 RS |
1527 | /* Lisp functions for creating and removing buffer-local variables. */ |
1528 | ||
1529 | DEFUN ("make-variable-frame-local", Fmake_variable_frame_local, Smake_variable_frame_local, | |
1530 | 1, 1, "vMake Variable Frame Local: ", | |
37254ece RS |
1531 | "Enable VARIABLE to have frame-local bindings.\n\ |
1532 | When a frame-local binding exists in the current frame,\n\ | |
1533 | it is in effect whenever the current buffer has no buffer-local binding.\n\ | |
1534 | A frame-local binding is actual a frame parameter value;\n\ | |
1535 | thus, any given frame has a local binding for VARIABLE\n\ | |
1536 | if it has a value for the frame parameter named VARIABLE.\n\ | |
1537 | See `modify-frame-parameters'.") | |
8f152ad4 | 1538 | (variable) |
b0c2d1c6 RS |
1539 | register Lisp_Object variable; |
1540 | { | |
1541 | register Lisp_Object tem, valcontents, newval; | |
1542 | ||
1543 | CHECK_SYMBOL (variable, 0); | |
1544 | ||
1545 | valcontents = XSYMBOL (variable)->value; | |
1546 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents) | |
1547 | || BUFFER_OBJFWDP (valcontents)) | |
1548 | error ("Symbol %s may not be frame-local", XSYMBOL (variable)->name->data); | |
1549 | ||
1550 | if (BUFFER_LOCAL_VALUEP (valcontents) | |
1551 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
42e975f0 RS |
1552 | { |
1553 | XBUFFER_LOCAL_VALUE (valcontents)->check_frame = 1; | |
1554 | return variable; | |
1555 | } | |
b0c2d1c6 RS |
1556 | |
1557 | if (EQ (valcontents, Qunbound)) | |
1558 | XSYMBOL (variable)->value = Qnil; | |
1559 | tem = Fcons (Qnil, Fsymbol_value (variable)); | |
7539e11f | 1560 | XCAR (tem) = tem; |
b0c2d1c6 RS |
1561 | newval = allocate_misc (); |
1562 | XMISCTYPE (newval) = Lisp_Misc_Some_Buffer_Local_Value; | |
1563 | XBUFFER_LOCAL_VALUE (newval)->realvalue = XSYMBOL (variable)->value; | |
1564 | XBUFFER_LOCAL_VALUE (newval)->buffer = Qnil; | |
1565 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
1566 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; | |
1567 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; | |
1568 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 1; | |
1569 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
1570 | XSYMBOL (variable)->value = newval; | |
1571 | return variable; | |
1572 | } | |
1573 | ||
62476adc | 1574 | DEFUN ("local-variable-p", Flocal_variable_p, Slocal_variable_p, |
c48ead86 KH |
1575 | 1, 2, 0, |
1576 | "Non-nil if VARIABLE has a local binding in buffer BUFFER.\n\ | |
1577 | BUFFER defaults to the current buffer.") | |
d9c2a0f2 EN |
1578 | (variable, buffer) |
1579 | register Lisp_Object variable, buffer; | |
62476adc RS |
1580 | { |
1581 | Lisp_Object valcontents; | |
c48ead86 KH |
1582 | register struct buffer *buf; |
1583 | ||
1584 | if (NILP (buffer)) | |
1585 | buf = current_buffer; | |
1586 | else | |
1587 | { | |
1588 | CHECK_BUFFER (buffer, 0); | |
1589 | buf = XBUFFER (buffer); | |
1590 | } | |
62476adc | 1591 | |
d9c2a0f2 | 1592 | CHECK_SYMBOL (variable, 0); |
62476adc | 1593 | |
d9c2a0f2 | 1594 | valcontents = XSYMBOL (variable)->value; |
c48ead86 | 1595 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1e5f16fa | 1596 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
c48ead86 KH |
1597 | { |
1598 | Lisp_Object tail, elt; | |
7539e11f | 1599 | for (tail = buf->local_var_alist; CONSP (tail); tail = XCDR (tail)) |
c48ead86 | 1600 | { |
7539e11f KR |
1601 | elt = XCAR (tail); |
1602 | if (EQ (variable, XCAR (elt))) | |
c48ead86 KH |
1603 | return Qt; |
1604 | } | |
1605 | } | |
1606 | if (BUFFER_OBJFWDP (valcontents)) | |
1607 | { | |
1608 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
f6cd0527 GM |
1609 | int idx = PER_BUFFER_IDX (offset); |
1610 | if (idx == -1 || PER_BUFFER_VALUE_P (buf, idx)) | |
c48ead86 KH |
1611 | return Qt; |
1612 | } | |
1613 | return Qnil; | |
62476adc | 1614 | } |
f4f04cee RS |
1615 | |
1616 | DEFUN ("local-variable-if-set-p", Flocal_variable_if_set_p, Slocal_variable_if_set_p, | |
1617 | 1, 2, 0, | |
1618 | "Non-nil if VARIABLE will be local in buffer BUFFER if it is set there.\n\ | |
1619 | BUFFER defaults to the current buffer.") | |
d9c2a0f2 EN |
1620 | (variable, buffer) |
1621 | register Lisp_Object variable, buffer; | |
f4f04cee RS |
1622 | { |
1623 | Lisp_Object valcontents; | |
1624 | register struct buffer *buf; | |
1625 | ||
1626 | if (NILP (buffer)) | |
1627 | buf = current_buffer; | |
1628 | else | |
1629 | { | |
1630 | CHECK_BUFFER (buffer, 0); | |
1631 | buf = XBUFFER (buffer); | |
1632 | } | |
1633 | ||
d9c2a0f2 | 1634 | CHECK_SYMBOL (variable, 0); |
f4f04cee | 1635 | |
d9c2a0f2 | 1636 | valcontents = XSYMBOL (variable)->value; |
f4f04cee RS |
1637 | |
1638 | /* This means that make-variable-buffer-local was done. */ | |
1639 | if (BUFFER_LOCAL_VALUEP (valcontents)) | |
1640 | return Qt; | |
1641 | /* All these slots become local if they are set. */ | |
1642 | if (BUFFER_OBJFWDP (valcontents)) | |
1643 | return Qt; | |
1644 | if (SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
1645 | { | |
1646 | Lisp_Object tail, elt; | |
7539e11f | 1647 | for (tail = buf->local_var_alist; CONSP (tail); tail = XCDR (tail)) |
f4f04cee | 1648 | { |
7539e11f KR |
1649 | elt = XCAR (tail); |
1650 | if (EQ (variable, XCAR (elt))) | |
f4f04cee RS |
1651 | return Qt; |
1652 | } | |
1653 | } | |
1654 | return Qnil; | |
1655 | } | |
7921925c | 1656 | \f |
ffd56f97 JB |
1657 | /* Find the function at the end of a chain of symbol function indirections. */ |
1658 | ||
1659 | /* If OBJECT is a symbol, find the end of its function chain and | |
1660 | return the value found there. If OBJECT is not a symbol, just | |
1661 | return it. If there is a cycle in the function chain, signal a | |
1662 | cyclic-function-indirection error. | |
1663 | ||
1664 | This is like Findirect_function, except that it doesn't signal an | |
1665 | error if the chain ends up unbound. */ | |
1666 | Lisp_Object | |
a2932990 | 1667 | indirect_function (object) |
62476adc | 1668 | register Lisp_Object object; |
ffd56f97 | 1669 | { |
eb8c3be9 | 1670 | Lisp_Object tortoise, hare; |
ffd56f97 | 1671 | |
eb8c3be9 | 1672 | hare = tortoise = object; |
ffd56f97 JB |
1673 | |
1674 | for (;;) | |
1675 | { | |
e9ebc175 | 1676 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
1677 | break; |
1678 | hare = XSYMBOL (hare)->function; | |
e9ebc175 | 1679 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
1680 | break; |
1681 | hare = XSYMBOL (hare)->function; | |
1682 | ||
eb8c3be9 | 1683 | tortoise = XSYMBOL (tortoise)->function; |
ffd56f97 | 1684 | |
eb8c3be9 | 1685 | if (EQ (hare, tortoise)) |
ffd56f97 JB |
1686 | Fsignal (Qcyclic_function_indirection, Fcons (object, Qnil)); |
1687 | } | |
1688 | ||
1689 | return hare; | |
1690 | } | |
1691 | ||
1692 | DEFUN ("indirect-function", Findirect_function, Sindirect_function, 1, 1, 0, | |
1693 | "Return the function at the end of OBJECT's function chain.\n\ | |
1694 | If OBJECT is a symbol, follow all function indirections and return the final\n\ | |
1695 | function binding.\n\ | |
1696 | If OBJECT is not a symbol, just return it.\n\ | |
1697 | Signal a void-function error if the final symbol is unbound.\n\ | |
1698 | Signal a cyclic-function-indirection error if there is a loop in the\n\ | |
1699 | function chain of symbols.") | |
1700 | (object) | |
1701 | register Lisp_Object object; | |
1702 | { | |
1703 | Lisp_Object result; | |
1704 | ||
1705 | result = indirect_function (object); | |
1706 | ||
1707 | if (EQ (result, Qunbound)) | |
1708 | return Fsignal (Qvoid_function, Fcons (object, Qnil)); | |
1709 | return result; | |
1710 | } | |
1711 | \f | |
7921925c JB |
1712 | /* Extract and set vector and string elements */ |
1713 | ||
1714 | DEFUN ("aref", Faref, Saref, 2, 2, 0, | |
d9c2a0f2 | 1715 | "Return the element of ARRAY at index IDX.\n\ |
4d276982 | 1716 | ARRAY may be a vector, a string, a char-table, a bool-vector,\n\ |
d9c2a0f2 | 1717 | or a byte-code object. IDX starts at 0.") |
7921925c JB |
1718 | (array, idx) |
1719 | register Lisp_Object array; | |
1720 | Lisp_Object idx; | |
1721 | { | |
1722 | register int idxval; | |
1723 | ||
1724 | CHECK_NUMBER (idx, 1); | |
1725 | idxval = XINT (idx); | |
e9ebc175 | 1726 | if (STRINGP (array)) |
7921925c | 1727 | { |
25638b07 RS |
1728 | int c, idxval_byte; |
1729 | ||
c24e4efe KH |
1730 | if (idxval < 0 || idxval >= XSTRING (array)->size) |
1731 | args_out_of_range (array, idx); | |
25638b07 RS |
1732 | if (! STRING_MULTIBYTE (array)) |
1733 | return make_number ((unsigned char) XSTRING (array)->data[idxval]); | |
1734 | idxval_byte = string_char_to_byte (array, idxval); | |
1735 | ||
1736 | c = STRING_CHAR (&XSTRING (array)->data[idxval_byte], | |
fc932ac6 | 1737 | STRING_BYTES (XSTRING (array)) - idxval_byte); |
25638b07 | 1738 | return make_number (c); |
7921925c | 1739 | } |
4d276982 RS |
1740 | else if (BOOL_VECTOR_P (array)) |
1741 | { | |
1742 | int val; | |
4d276982 RS |
1743 | |
1744 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
1745 | args_out_of_range (array, idx); | |
1746 | ||
68be917d KH |
1747 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BITS_PER_CHAR]; |
1748 | return (val & (1 << (idxval % BITS_PER_CHAR)) ? Qt : Qnil); | |
4d276982 RS |
1749 | } |
1750 | else if (CHAR_TABLE_P (array)) | |
1751 | { | |
1752 | Lisp_Object val; | |
1753 | ||
6bbd7a29 GM |
1754 | val = Qnil; |
1755 | ||
4d276982 RS |
1756 | if (idxval < 0) |
1757 | args_out_of_range (array, idx); | |
ab5c3f93 | 1758 | if (idxval < CHAR_TABLE_ORDINARY_SLOTS) |
8313c4e7 | 1759 | { |
39e16e51 | 1760 | /* For ASCII and 8-bit European characters, the element is |
3a6cf6bd | 1761 | stored in the top table. */ |
8313c4e7 KH |
1762 | val = XCHAR_TABLE (array)->contents[idxval]; |
1763 | if (NILP (val)) | |
1764 | val = XCHAR_TABLE (array)->defalt; | |
1765 | while (NILP (val)) /* Follow parents until we find some value. */ | |
1766 | { | |
1767 | array = XCHAR_TABLE (array)->parent; | |
1768 | if (NILP (array)) | |
1769 | return Qnil; | |
1770 | val = XCHAR_TABLE (array)->contents[idxval]; | |
1771 | if (NILP (val)) | |
1772 | val = XCHAR_TABLE (array)->defalt; | |
1773 | } | |
1774 | return val; | |
1775 | } | |
4d276982 RS |
1776 | else |
1777 | { | |
39e16e51 KH |
1778 | int code[4], i; |
1779 | Lisp_Object sub_table; | |
8313c4e7 | 1780 | |
37309c9d | 1781 | SPLIT_CHAR (idxval, code[0], code[1], code[2]); |
e19c1eb4 KH |
1782 | if (code[1] < 32) code[1] = -1; |
1783 | else if (code[2] < 32) code[2] = -1; | |
1784 | ||
39e16e51 KH |
1785 | /* Here, the possible range of CODE[0] (== charset ID) is |
1786 | 128..MAX_CHARSET. Since the top level char table contains | |
1787 | data for multibyte characters after 256th element, we must | |
1788 | increment CODE[0] by 128 to get a correct index. */ | |
1789 | code[0] += 128; | |
1790 | code[3] = -1; /* anchor */ | |
4d276982 RS |
1791 | |
1792 | try_parent_char_table: | |
39e16e51 KH |
1793 | sub_table = array; |
1794 | for (i = 0; code[i] >= 0; i++) | |
4d276982 | 1795 | { |
39e16e51 KH |
1796 | val = XCHAR_TABLE (sub_table)->contents[code[i]]; |
1797 | if (SUB_CHAR_TABLE_P (val)) | |
1798 | sub_table = val; | |
1799 | else | |
8313c4e7 | 1800 | { |
39e16e51 KH |
1801 | if (NILP (val)) |
1802 | val = XCHAR_TABLE (sub_table)->defalt; | |
1803 | if (NILP (val)) | |
1804 | { | |
1805 | array = XCHAR_TABLE (array)->parent; | |
1806 | if (!NILP (array)) | |
1807 | goto try_parent_char_table; | |
1808 | } | |
1809 | return val; | |
8313c4e7 | 1810 | } |
4d276982 | 1811 | } |
39e16e51 KH |
1812 | /* Here, VAL is a sub char table. We try the default value |
1813 | and parent. */ | |
1814 | val = XCHAR_TABLE (val)->defalt; | |
8313c4e7 | 1815 | if (NILP (val)) |
4d276982 RS |
1816 | { |
1817 | array = XCHAR_TABLE (array)->parent; | |
39e16e51 KH |
1818 | if (!NILP (array)) |
1819 | goto try_parent_char_table; | |
4d276982 | 1820 | } |
4d276982 RS |
1821 | return val; |
1822 | } | |
4d276982 | 1823 | } |
7921925c | 1824 | else |
c24e4efe | 1825 | { |
6bbd7a29 | 1826 | int size = 0; |
7f358972 RS |
1827 | if (VECTORP (array)) |
1828 | size = XVECTOR (array)->size; | |
1829 | else if (COMPILEDP (array)) | |
1830 | size = XVECTOR (array)->size & PSEUDOVECTOR_SIZE_MASK; | |
1831 | else | |
1832 | wrong_type_argument (Qarrayp, array); | |
1833 | ||
1834 | if (idxval < 0 || idxval >= size) | |
c24e4efe KH |
1835 | args_out_of_range (array, idx); |
1836 | return XVECTOR (array)->contents[idxval]; | |
1837 | } | |
7921925c JB |
1838 | } |
1839 | ||
3c9de1af KH |
1840 | /* Don't use alloca for relocating string data larger than this, lest |
1841 | we overflow their stack. The value is the same as what used in | |
1842 | fns.c for base64 handling. */ | |
1843 | #define MAX_ALLOCA 16*1024 | |
1844 | ||
7921925c | 1845 | DEFUN ("aset", Faset, Saset, 3, 3, 0, |
73d40355 | 1846 | "Store into the element of ARRAY at index IDX the value NEWELT.\n\ |
9346f507 RS |
1847 | ARRAY may be a vector, a string, a char-table or a bool-vector.\n\ |
1848 | IDX starts at 0.") | |
7921925c JB |
1849 | (array, idx, newelt) |
1850 | register Lisp_Object array; | |
1851 | Lisp_Object idx, newelt; | |
1852 | { | |
1853 | register int idxval; | |
1854 | ||
1855 | CHECK_NUMBER (idx, 1); | |
1856 | idxval = XINT (idx); | |
4d276982 RS |
1857 | if (!VECTORP (array) && !STRINGP (array) && !BOOL_VECTOR_P (array) |
1858 | && ! CHAR_TABLE_P (array)) | |
7921925c | 1859 | array = wrong_type_argument (Qarrayp, array); |
7921925c JB |
1860 | CHECK_IMPURE (array); |
1861 | ||
e9ebc175 | 1862 | if (VECTORP (array)) |
c24e4efe KH |
1863 | { |
1864 | if (idxval < 0 || idxval >= XVECTOR (array)->size) | |
1865 | args_out_of_range (array, idx); | |
1866 | XVECTOR (array)->contents[idxval] = newelt; | |
1867 | } | |
4d276982 RS |
1868 | else if (BOOL_VECTOR_P (array)) |
1869 | { | |
1870 | int val; | |
4d276982 RS |
1871 | |
1872 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
1873 | args_out_of_range (array, idx); | |
1874 | ||
68be917d | 1875 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BITS_PER_CHAR]; |
4d276982 RS |
1876 | |
1877 | if (! NILP (newelt)) | |
68be917d | 1878 | val |= 1 << (idxval % BITS_PER_CHAR); |
4d276982 | 1879 | else |
68be917d KH |
1880 | val &= ~(1 << (idxval % BITS_PER_CHAR)); |
1881 | XBOOL_VECTOR (array)->data[idxval / BITS_PER_CHAR] = val; | |
4d276982 RS |
1882 | } |
1883 | else if (CHAR_TABLE_P (array)) | |
1884 | { | |
4d276982 RS |
1885 | if (idxval < 0) |
1886 | args_out_of_range (array, idx); | |
ab5c3f93 | 1887 | if (idxval < CHAR_TABLE_ORDINARY_SLOTS) |
8313c4e7 | 1888 | XCHAR_TABLE (array)->contents[idxval] = newelt; |
4d276982 RS |
1889 | else |
1890 | { | |
39e16e51 | 1891 | int code[4], i; |
8313c4e7 | 1892 | Lisp_Object val; |
4d276982 | 1893 | |
37309c9d | 1894 | SPLIT_CHAR (idxval, code[0], code[1], code[2]); |
e19c1eb4 KH |
1895 | if (code[1] < 32) code[1] = -1; |
1896 | else if (code[2] < 32) code[2] = -1; | |
1897 | ||
39e16e51 KH |
1898 | /* See the comment of the corresponding part in Faref. */ |
1899 | code[0] += 128; | |
1900 | code[3] = -1; /* anchor */ | |
1901 | for (i = 0; code[i + 1] >= 0; i++) | |
8313c4e7 | 1902 | { |
39e16e51 KH |
1903 | val = XCHAR_TABLE (array)->contents[code[i]]; |
1904 | if (SUB_CHAR_TABLE_P (val)) | |
8313c4e7 KH |
1905 | array = val; |
1906 | else | |
3c8fccc3 RS |
1907 | { |
1908 | Lisp_Object temp; | |
1909 | ||
1910 | /* VAL is a leaf. Create a sub char table with the | |
1911 | default value VAL or XCHAR_TABLE (array)->defalt | |
1912 | and look into it. */ | |
1913 | ||
1914 | temp = make_sub_char_table (NILP (val) | |
1915 | ? XCHAR_TABLE (array)->defalt | |
1916 | : val); | |
1917 | XCHAR_TABLE (array)->contents[code[i]] = temp; | |
1918 | array = temp; | |
1919 | } | |
8313c4e7 | 1920 | } |
39e16e51 | 1921 | XCHAR_TABLE (array)->contents[code[i]] = newelt; |
4d276982 | 1922 | } |
4d276982 | 1923 | } |
25638b07 RS |
1924 | else if (STRING_MULTIBYTE (array)) |
1925 | { | |
3c9de1af KH |
1926 | int idxval_byte, prev_bytes, new_bytes; |
1927 | unsigned char workbuf[MAX_MULTIBYTE_LENGTH], *p0 = workbuf, *p1; | |
25638b07 RS |
1928 | |
1929 | if (idxval < 0 || idxval >= XSTRING (array)->size) | |
1930 | args_out_of_range (array, idx); | |
3c9de1af | 1931 | CHECK_NUMBER (newelt, 2); |
25638b07 RS |
1932 | |
1933 | idxval_byte = string_char_to_byte (array, idxval); | |
3c9de1af KH |
1934 | p1 = &XSTRING (array)->data[idxval_byte]; |
1935 | PARSE_MULTIBYTE_SEQ (p1, nbytes - idxval_byte, prev_bytes); | |
1936 | new_bytes = CHAR_STRING (XINT (newelt), p0); | |
1937 | if (prev_bytes != new_bytes) | |
1938 | { | |
1939 | /* We must relocate the string data. */ | |
1940 | int nchars = XSTRING (array)->size; | |
1941 | int nbytes = STRING_BYTES (XSTRING (array)); | |
1942 | unsigned char *str; | |
1943 | ||
1944 | str = (nbytes <= MAX_ALLOCA | |
1945 | ? (unsigned char *) alloca (nbytes) | |
1946 | : (unsigned char *) xmalloc (nbytes)); | |
1947 | bcopy (XSTRING (array)->data, str, nbytes); | |
1948 | allocate_string_data (XSTRING (array), nchars, | |
1949 | nbytes + new_bytes - prev_bytes); | |
1950 | bcopy (str, XSTRING (array)->data, idxval_byte); | |
1951 | p1 = XSTRING (array)->data + idxval_byte; | |
1952 | bcopy (str + idxval_byte + prev_bytes, p1 + new_bytes, | |
1953 | nbytes - (idxval_byte + prev_bytes)); | |
1954 | if (nbytes > MAX_ALLOCA) | |
1955 | xfree (str); | |
1956 | clear_string_char_byte_cache (); | |
1957 | } | |
1958 | while (new_bytes--) | |
1959 | *p1++ = *p0++; | |
25638b07 | 1960 | } |
7921925c JB |
1961 | else |
1962 | { | |
c24e4efe KH |
1963 | if (idxval < 0 || idxval >= XSTRING (array)->size) |
1964 | args_out_of_range (array, idx); | |
7921925c | 1965 | CHECK_NUMBER (newelt, 2); |
3c9de1af KH |
1966 | |
1967 | if (XINT (newelt) < 0 || SINGLE_BYTE_CHAR_P (XINT (newelt))) | |
1968 | XSTRING (array)->data[idxval] = XINT (newelt); | |
1969 | else | |
1970 | { | |
1971 | /* We must relocate the string data while converting it to | |
1972 | multibyte. */ | |
1973 | int idxval_byte, prev_bytes, new_bytes; | |
1974 | unsigned char workbuf[MAX_MULTIBYTE_LENGTH], *p0 = workbuf, *p1; | |
1975 | unsigned char *origstr = XSTRING (array)->data, *str; | |
1976 | int nchars, nbytes; | |
1977 | ||
1978 | nchars = XSTRING (array)->size; | |
1979 | nbytes = idxval_byte = count_size_as_multibyte (origstr, idxval); | |
1980 | nbytes += count_size_as_multibyte (origstr + idxval, | |
1981 | nchars - idxval); | |
1982 | str = (nbytes <= MAX_ALLOCA | |
1983 | ? (unsigned char *) alloca (nbytes) | |
1984 | : (unsigned char *) xmalloc (nbytes)); | |
1985 | copy_text (XSTRING (array)->data, str, nchars, 0, 1); | |
1986 | PARSE_MULTIBYTE_SEQ (str + idxval_byte, nbytes - idxval_byte, | |
1987 | prev_bytes); | |
1988 | new_bytes = CHAR_STRING (XINT (newelt), p0); | |
1989 | allocate_string_data (XSTRING (array), nchars, | |
1990 | nbytes + new_bytes - prev_bytes); | |
1991 | bcopy (str, XSTRING (array)->data, idxval_byte); | |
1992 | p1 = XSTRING (array)->data + idxval_byte; | |
1993 | while (new_bytes--) | |
1994 | *p1++ = *p0++; | |
1995 | bcopy (str + idxval_byte + prev_bytes, p1, | |
1996 | nbytes - (idxval_byte + prev_bytes)); | |
1997 | if (nbytes > MAX_ALLOCA) | |
1998 | xfree (str); | |
1999 | clear_string_char_byte_cache (); | |
2000 | } | |
7921925c JB |
2001 | } |
2002 | ||
2003 | return newelt; | |
2004 | } | |
7921925c JB |
2005 | \f |
2006 | /* Arithmetic functions */ | |
2007 | ||
2008 | enum comparison { equal, notequal, less, grtr, less_or_equal, grtr_or_equal }; | |
2009 | ||
2010 | Lisp_Object | |
2011 | arithcompare (num1, num2, comparison) | |
2012 | Lisp_Object num1, num2; | |
2013 | enum comparison comparison; | |
2014 | { | |
6bbd7a29 | 2015 | double f1 = 0, f2 = 0; |
7921925c JB |
2016 | int floatp = 0; |
2017 | ||
7921925c JB |
2018 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1, 0); |
2019 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2, 0); | |
2020 | ||
e9ebc175 | 2021 | if (FLOATP (num1) || FLOATP (num2)) |
7921925c JB |
2022 | { |
2023 | floatp = 1; | |
7539e11f KR |
2024 | f1 = (FLOATP (num1)) ? XFLOAT_DATA (num1) : XINT (num1); |
2025 | f2 = (FLOATP (num2)) ? XFLOAT_DATA (num2) : XINT (num2); | |
7921925c | 2026 | } |
7921925c JB |
2027 | |
2028 | switch (comparison) | |
2029 | { | |
2030 | case equal: | |
2031 | if (floatp ? f1 == f2 : XINT (num1) == XINT (num2)) | |
2032 | return Qt; | |
2033 | return Qnil; | |
2034 | ||
2035 | case notequal: | |
2036 | if (floatp ? f1 != f2 : XINT (num1) != XINT (num2)) | |
2037 | return Qt; | |
2038 | return Qnil; | |
2039 | ||
2040 | case less: | |
2041 | if (floatp ? f1 < f2 : XINT (num1) < XINT (num2)) | |
2042 | return Qt; | |
2043 | return Qnil; | |
2044 | ||
2045 | case less_or_equal: | |
2046 | if (floatp ? f1 <= f2 : XINT (num1) <= XINT (num2)) | |
2047 | return Qt; | |
2048 | return Qnil; | |
2049 | ||
2050 | case grtr: | |
2051 | if (floatp ? f1 > f2 : XINT (num1) > XINT (num2)) | |
2052 | return Qt; | |
2053 | return Qnil; | |
2054 | ||
2055 | case grtr_or_equal: | |
2056 | if (floatp ? f1 >= f2 : XINT (num1) >= XINT (num2)) | |
2057 | return Qt; | |
2058 | return Qnil; | |
25e40a4b JB |
2059 | |
2060 | default: | |
2061 | abort (); | |
7921925c JB |
2062 | } |
2063 | } | |
2064 | ||
2065 | DEFUN ("=", Feqlsign, Seqlsign, 2, 2, 0, | |
c2124165 | 2066 | "Return t if two args, both numbers or markers, are equal.") |
7921925c JB |
2067 | (num1, num2) |
2068 | register Lisp_Object num1, num2; | |
2069 | { | |
2070 | return arithcompare (num1, num2, equal); | |
2071 | } | |
2072 | ||
2073 | DEFUN ("<", Flss, Slss, 2, 2, 0, | |
c2124165 | 2074 | "Return t if first arg is less than second arg. Both must be numbers or markers.") |
7921925c JB |
2075 | (num1, num2) |
2076 | register Lisp_Object num1, num2; | |
2077 | { | |
2078 | return arithcompare (num1, num2, less); | |
2079 | } | |
2080 | ||
2081 | DEFUN (">", Fgtr, Sgtr, 2, 2, 0, | |
c2124165 | 2082 | "Return t if first arg is greater than second arg. Both must be numbers or markers.") |
7921925c JB |
2083 | (num1, num2) |
2084 | register Lisp_Object num1, num2; | |
2085 | { | |
2086 | return arithcompare (num1, num2, grtr); | |
2087 | } | |
2088 | ||
2089 | DEFUN ("<=", Fleq, Sleq, 2, 2, 0, | |
c2124165 | 2090 | "Return t if first arg is less than or equal to second arg.\n\ |
7921925c JB |
2091 | Both must be numbers or markers.") |
2092 | (num1, num2) | |
2093 | register Lisp_Object num1, num2; | |
2094 | { | |
2095 | return arithcompare (num1, num2, less_or_equal); | |
2096 | } | |
2097 | ||
2098 | DEFUN (">=", Fgeq, Sgeq, 2, 2, 0, | |
c2124165 | 2099 | "Return t if first arg is greater than or equal to second arg.\n\ |
7921925c JB |
2100 | Both must be numbers or markers.") |
2101 | (num1, num2) | |
2102 | register Lisp_Object num1, num2; | |
2103 | { | |
2104 | return arithcompare (num1, num2, grtr_or_equal); | |
2105 | } | |
2106 | ||
2107 | DEFUN ("/=", Fneq, Sneq, 2, 2, 0, | |
c2124165 | 2108 | "Return t if first arg is not equal to second arg. Both must be numbers or markers.") |
7921925c JB |
2109 | (num1, num2) |
2110 | register Lisp_Object num1, num2; | |
2111 | { | |
2112 | return arithcompare (num1, num2, notequal); | |
2113 | } | |
2114 | ||
c2124165 | 2115 | DEFUN ("zerop", Fzerop, Szerop, 1, 1, 0, "Return t if NUMBER is zero.") |
d9c2a0f2 EN |
2116 | (number) |
2117 | register Lisp_Object number; | |
7921925c | 2118 | { |
d9c2a0f2 | 2119 | CHECK_NUMBER_OR_FLOAT (number, 0); |
7921925c | 2120 | |
d9c2a0f2 | 2121 | if (FLOATP (number)) |
7921925c | 2122 | { |
7539e11f | 2123 | if (XFLOAT_DATA (number) == 0.0) |
7921925c JB |
2124 | return Qt; |
2125 | return Qnil; | |
2126 | } | |
7921925c | 2127 | |
d9c2a0f2 | 2128 | if (!XINT (number)) |
7921925c JB |
2129 | return Qt; |
2130 | return Qnil; | |
2131 | } | |
2132 | \f | |
34f4f6c6 | 2133 | /* Convert between long values and pairs of Lisp integers. */ |
51cf3e31 JB |
2134 | |
2135 | Lisp_Object | |
2136 | long_to_cons (i) | |
2137 | unsigned long i; | |
2138 | { | |
2139 | unsigned int top = i >> 16; | |
2140 | unsigned int bot = i & 0xFFFF; | |
2141 | if (top == 0) | |
2142 | return make_number (bot); | |
b42cfa11 | 2143 | if (top == (unsigned long)-1 >> 16) |
51cf3e31 JB |
2144 | return Fcons (make_number (-1), make_number (bot)); |
2145 | return Fcons (make_number (top), make_number (bot)); | |
2146 | } | |
2147 | ||
2148 | unsigned long | |
2149 | cons_to_long (c) | |
2150 | Lisp_Object c; | |
2151 | { | |
878a80cc | 2152 | Lisp_Object top, bot; |
51cf3e31 JB |
2153 | if (INTEGERP (c)) |
2154 | return XINT (c); | |
7539e11f KR |
2155 | top = XCAR (c); |
2156 | bot = XCDR (c); | |
51cf3e31 | 2157 | if (CONSP (bot)) |
7539e11f | 2158 | bot = XCAR (bot); |
51cf3e31 JB |
2159 | return ((XINT (top) << 16) | XINT (bot)); |
2160 | } | |
2161 | \f | |
f2980264 | 2162 | DEFUN ("number-to-string", Fnumber_to_string, Snumber_to_string, 1, 1, 0, |
d9c2a0f2 | 2163 | "Convert NUMBER to a string by printing it in decimal.\n\ |
25e40a4b | 2164 | Uses a minus sign if negative.\n\ |
d9c2a0f2 EN |
2165 | NUMBER may be an integer or a floating point number.") |
2166 | (number) | |
2167 | Lisp_Object number; | |
7921925c | 2168 | { |
6030ce64 | 2169 | char buffer[VALBITS]; |
7921925c | 2170 | |
d9c2a0f2 | 2171 | CHECK_NUMBER_OR_FLOAT (number, 0); |
7921925c | 2172 | |
d9c2a0f2 | 2173 | if (FLOATP (number)) |
7921925c JB |
2174 | { |
2175 | char pigbuf[350]; /* see comments in float_to_string */ | |
2176 | ||
7539e11f | 2177 | float_to_string (pigbuf, XFLOAT_DATA (number)); |
7403b5c8 | 2178 | return build_string (pigbuf); |
7921925c | 2179 | } |
7921925c | 2180 | |
e6c82a8d | 2181 | if (sizeof (int) == sizeof (EMACS_INT)) |
d9c2a0f2 | 2182 | sprintf (buffer, "%d", XINT (number)); |
e6c82a8d | 2183 | else if (sizeof (long) == sizeof (EMACS_INT)) |
dd8daec5 | 2184 | sprintf (buffer, "%ld", (long) XINT (number)); |
e6c82a8d RS |
2185 | else |
2186 | abort (); | |
7921925c JB |
2187 | return build_string (buffer); |
2188 | } | |
2189 | ||
3883fbeb RS |
2190 | INLINE static int |
2191 | digit_to_number (character, base) | |
2192 | int character, base; | |
2193 | { | |
2194 | int digit; | |
2195 | ||
2196 | if (character >= '0' && character <= '9') | |
2197 | digit = character - '0'; | |
2198 | else if (character >= 'a' && character <= 'z') | |
2199 | digit = character - 'a' + 10; | |
2200 | else if (character >= 'A' && character <= 'Z') | |
2201 | digit = character - 'A' + 10; | |
2202 | else | |
2203 | return -1; | |
2204 | ||
2205 | if (digit >= base) | |
2206 | return -1; | |
2207 | else | |
2208 | return digit; | |
2209 | } | |
2210 | ||
2211 | DEFUN ("string-to-number", Fstring_to_number, Sstring_to_number, 1, 2, 0, | |
25e40a4b | 2212 | "Convert STRING to a number by parsing it as a decimal number.\n\ |
1c1c17eb | 2213 | This parses both integers and floating point numbers.\n\ |
3883fbeb RS |
2214 | It ignores leading spaces and tabs.\n\ |
2215 | \n\ | |
2216 | If BASE, interpret STRING as a number in that base. If BASE isn't\n\ | |
2217 | present, base 10 is used. BASE must be between 2 and 16 (inclusive).\n\ | |
8e36ae7f | 2218 | If the base used is not 10, floating point is not recognized.") |
3883fbeb RS |
2219 | (string, base) |
2220 | register Lisp_Object string, base; | |
7921925c | 2221 | { |
3883fbeb | 2222 | register unsigned char *p; |
342858a5 GM |
2223 | register int b; |
2224 | int sign = 1; | |
2225 | Lisp_Object val; | |
25e40a4b | 2226 | |
d9c2a0f2 | 2227 | CHECK_STRING (string, 0); |
7921925c | 2228 | |
3883fbeb RS |
2229 | if (NILP (base)) |
2230 | b = 10; | |
2231 | else | |
2232 | { | |
2233 | CHECK_NUMBER (base, 1); | |
2234 | b = XINT (base); | |
2235 | if (b < 2 || b > 16) | |
2236 | Fsignal (Qargs_out_of_range, Fcons (base, Qnil)); | |
2237 | } | |
2238 | ||
25e40a4b JB |
2239 | /* Skip any whitespace at the front of the number. Some versions of |
2240 | atoi do this anyway, so we might as well make Emacs lisp consistent. */ | |
342858a5 | 2241 | p = XSTRING (string)->data; |
0a3e4d65 | 2242 | while (*p == ' ' || *p == '\t') |
25e40a4b JB |
2243 | p++; |
2244 | ||
3883fbeb RS |
2245 | if (*p == '-') |
2246 | { | |
342858a5 | 2247 | sign = -1; |
3883fbeb RS |
2248 | p++; |
2249 | } | |
2250 | else if (*p == '+') | |
2251 | p++; | |
2252 | ||
8e36ae7f | 2253 | if (isfloat_string (p) && b == 10) |
342858a5 GM |
2254 | val = make_float (sign * atof (p)); |
2255 | else | |
3883fbeb | 2256 | { |
342858a5 GM |
2257 | double v = 0; |
2258 | ||
2259 | while (1) | |
2260 | { | |
2261 | int digit = digit_to_number (*p++, b); | |
2262 | if (digit < 0) | |
2263 | break; | |
2264 | v = v * b + digit; | |
2265 | } | |
2266 | ||
2267 | if (v > (EMACS_UINT) (VALMASK >> 1)) | |
2268 | val = make_float (sign * v); | |
2269 | else | |
2270 | val = make_number (sign * (int) v); | |
3883fbeb | 2271 | } |
342858a5 GM |
2272 | |
2273 | return val; | |
7921925c | 2274 | } |
3883fbeb | 2275 | |
7403b5c8 | 2276 | \f |
7921925c JB |
2277 | enum arithop |
2278 | { Aadd, Asub, Amult, Adiv, Alogand, Alogior, Alogxor, Amax, Amin }; | |
2279 | ||
b06faa91 | 2280 | extern Lisp_Object float_arith_driver (); |
ad8d56b9 | 2281 | extern Lisp_Object fmod_float (); |
b06faa91 | 2282 | |
7921925c | 2283 | Lisp_Object |
87fbf902 | 2284 | arith_driver (code, nargs, args) |
7921925c JB |
2285 | enum arithop code; |
2286 | int nargs; | |
2287 | register Lisp_Object *args; | |
2288 | { | |
2289 | register Lisp_Object val; | |
2290 | register int argnum; | |
5260234d RS |
2291 | register EMACS_INT accum; |
2292 | register EMACS_INT next; | |
7921925c | 2293 | |
0220c518 | 2294 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2295 | { |
2296 | case Alogior: | |
2297 | case Alogxor: | |
2298 | case Aadd: | |
2299 | case Asub: | |
2300 | accum = 0; break; | |
2301 | case Amult: | |
2302 | accum = 1; break; | |
2303 | case Alogand: | |
2304 | accum = -1; break; | |
2305 | } | |
2306 | ||
2307 | for (argnum = 0; argnum < nargs; argnum++) | |
2308 | { | |
2309 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ | |
7921925c JB |
2310 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val, argnum); |
2311 | ||
e9ebc175 | 2312 | if (FLOATP (val)) /* time to do serious math */ |
7921925c JB |
2313 | return (float_arith_driver ((double) accum, argnum, code, |
2314 | nargs, args)); | |
7921925c JB |
2315 | args[argnum] = val; /* runs into a compiler bug. */ |
2316 | next = XINT (args[argnum]); | |
0220c518 | 2317 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2318 | { |
2319 | case Aadd: accum += next; break; | |
2320 | case Asub: | |
e64981da | 2321 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c JB |
2322 | break; |
2323 | case Amult: accum *= next; break; | |
2324 | case Adiv: | |
2325 | if (!argnum) accum = next; | |
87fbf902 RS |
2326 | else |
2327 | { | |
2328 | if (next == 0) | |
2329 | Fsignal (Qarith_error, Qnil); | |
2330 | accum /= next; | |
2331 | } | |
7921925c JB |
2332 | break; |
2333 | case Alogand: accum &= next; break; | |
2334 | case Alogior: accum |= next; break; | |
2335 | case Alogxor: accum ^= next; break; | |
2336 | case Amax: if (!argnum || next > accum) accum = next; break; | |
2337 | case Amin: if (!argnum || next < accum) accum = next; break; | |
2338 | } | |
2339 | } | |
2340 | ||
f187f1f7 | 2341 | XSETINT (val, accum); |
7921925c JB |
2342 | return val; |
2343 | } | |
2344 | ||
1a2f2d33 KH |
2345 | #undef isnan |
2346 | #define isnan(x) ((x) != (x)) | |
2347 | ||
7921925c JB |
2348 | Lisp_Object |
2349 | float_arith_driver (accum, argnum, code, nargs, args) | |
2350 | double accum; | |
2351 | register int argnum; | |
2352 | enum arithop code; | |
2353 | int nargs; | |
2354 | register Lisp_Object *args; | |
2355 | { | |
2356 | register Lisp_Object val; | |
2357 | double next; | |
7403b5c8 | 2358 | |
7921925c JB |
2359 | for (; argnum < nargs; argnum++) |
2360 | { | |
2361 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ | |
2362 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val, argnum); | |
2363 | ||
e9ebc175 | 2364 | if (FLOATP (val)) |
7921925c | 2365 | { |
7539e11f | 2366 | next = XFLOAT_DATA (val); |
7921925c JB |
2367 | } |
2368 | else | |
2369 | { | |
2370 | args[argnum] = val; /* runs into a compiler bug. */ | |
2371 | next = XINT (args[argnum]); | |
2372 | } | |
0220c518 | 2373 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2374 | { |
2375 | case Aadd: | |
2376 | accum += next; | |
2377 | break; | |
2378 | case Asub: | |
e64981da | 2379 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c JB |
2380 | break; |
2381 | case Amult: | |
2382 | accum *= next; | |
2383 | break; | |
2384 | case Adiv: | |
2385 | if (!argnum) | |
2386 | accum = next; | |
2387 | else | |
87fbf902 | 2388 | { |
ad8d56b9 | 2389 | if (! IEEE_FLOATING_POINT && next == 0) |
87fbf902 RS |
2390 | Fsignal (Qarith_error, Qnil); |
2391 | accum /= next; | |
2392 | } | |
7921925c JB |
2393 | break; |
2394 | case Alogand: | |
2395 | case Alogior: | |
2396 | case Alogxor: | |
2397 | return wrong_type_argument (Qinteger_or_marker_p, val); | |
2398 | case Amax: | |
1a2f2d33 | 2399 | if (!argnum || isnan (next) || next > accum) |
7921925c JB |
2400 | accum = next; |
2401 | break; | |
2402 | case Amin: | |
1a2f2d33 | 2403 | if (!argnum || isnan (next) || next < accum) |
7921925c JB |
2404 | accum = next; |
2405 | break; | |
2406 | } | |
2407 | } | |
2408 | ||
2409 | return make_float (accum); | |
2410 | } | |
cc94f3b2 | 2411 | |
7921925c JB |
2412 | |
2413 | DEFUN ("+", Fplus, Splus, 0, MANY, 0, | |
2414 | "Return sum of any number of arguments, which are numbers or markers.") | |
2415 | (nargs, args) | |
2416 | int nargs; | |
2417 | Lisp_Object *args; | |
2418 | { | |
2419 | return arith_driver (Aadd, nargs, args); | |
2420 | } | |
2421 | ||
2422 | DEFUN ("-", Fminus, Sminus, 0, MANY, 0, | |
2423 | "Negate number or subtract numbers or markers.\n\ | |
2424 | With one arg, negates it. With more than one arg,\n\ | |
2425 | subtracts all but the first from the first.") | |
2426 | (nargs, args) | |
2427 | int nargs; | |
2428 | Lisp_Object *args; | |
2429 | { | |
2430 | return arith_driver (Asub, nargs, args); | |
2431 | } | |
2432 | ||
2433 | DEFUN ("*", Ftimes, Stimes, 0, MANY, 0, | |
2434 | "Returns product of any number of arguments, which are numbers or markers.") | |
2435 | (nargs, args) | |
2436 | int nargs; | |
2437 | Lisp_Object *args; | |
2438 | { | |
2439 | return arith_driver (Amult, nargs, args); | |
2440 | } | |
2441 | ||
2442 | DEFUN ("/", Fquo, Squo, 2, MANY, 0, | |
2443 | "Returns first argument divided by all the remaining arguments.\n\ | |
2444 | The arguments must be numbers or markers.") | |
2445 | (nargs, args) | |
2446 | int nargs; | |
2447 | Lisp_Object *args; | |
2448 | { | |
2449 | return arith_driver (Adiv, nargs, args); | |
2450 | } | |
2451 | ||
2452 | DEFUN ("%", Frem, Srem, 2, 2, 0, | |
d9c2a0f2 | 2453 | "Returns remainder of X divided by Y.\n\ |
aa29f9b9 | 2454 | Both must be integers or markers.") |
d9c2a0f2 EN |
2455 | (x, y) |
2456 | register Lisp_Object x, y; | |
7921925c JB |
2457 | { |
2458 | Lisp_Object val; | |
2459 | ||
d9c2a0f2 EN |
2460 | CHECK_NUMBER_COERCE_MARKER (x, 0); |
2461 | CHECK_NUMBER_COERCE_MARKER (y, 1); | |
7921925c | 2462 | |
d9c2a0f2 | 2463 | if (XFASTINT (y) == 0) |
87fbf902 RS |
2464 | Fsignal (Qarith_error, Qnil); |
2465 | ||
d9c2a0f2 | 2466 | XSETINT (val, XINT (x) % XINT (y)); |
7921925c JB |
2467 | return val; |
2468 | } | |
2469 | ||
1d66a5fa KH |
2470 | #ifndef HAVE_FMOD |
2471 | double | |
2472 | fmod (f1, f2) | |
2473 | double f1, f2; | |
2474 | { | |
bc1c9d7e PE |
2475 | double r = f1; |
2476 | ||
fa43b1e8 KH |
2477 | if (f2 < 0.0) |
2478 | f2 = -f2; | |
bc1c9d7e PE |
2479 | |
2480 | /* If the magnitude of the result exceeds that of the divisor, or | |
2481 | the sign of the result does not agree with that of the dividend, | |
2482 | iterate with the reduced value. This does not yield a | |
2483 | particularly accurate result, but at least it will be in the | |
2484 | range promised by fmod. */ | |
2485 | do | |
2486 | r -= f2 * floor (r / f2); | |
2487 | while (f2 <= (r < 0 ? -r : r) || ((r < 0) != (f1 < 0) && ! isnan (r))); | |
2488 | ||
2489 | return r; | |
1d66a5fa KH |
2490 | } |
2491 | #endif /* ! HAVE_FMOD */ | |
2492 | ||
44fa9da5 PE |
2493 | DEFUN ("mod", Fmod, Smod, 2, 2, 0, |
2494 | "Returns X modulo Y.\n\ | |
2495 | The result falls between zero (inclusive) and Y (exclusive).\n\ | |
2496 | Both X and Y must be numbers or markers.") | |
d9c2a0f2 EN |
2497 | (x, y) |
2498 | register Lisp_Object x, y; | |
44fa9da5 PE |
2499 | { |
2500 | Lisp_Object val; | |
5260234d | 2501 | EMACS_INT i1, i2; |
44fa9da5 | 2502 | |
d9c2a0f2 EN |
2503 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (x, 0); |
2504 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (y, 1); | |
44fa9da5 | 2505 | |
d9c2a0f2 | 2506 | if (FLOATP (x) || FLOATP (y)) |
ad8d56b9 PE |
2507 | return fmod_float (x, y); |
2508 | ||
d9c2a0f2 EN |
2509 | i1 = XINT (x); |
2510 | i2 = XINT (y); | |
44fa9da5 PE |
2511 | |
2512 | if (i2 == 0) | |
2513 | Fsignal (Qarith_error, Qnil); | |
7403b5c8 | 2514 | |
44fa9da5 PE |
2515 | i1 %= i2; |
2516 | ||
2517 | /* If the "remainder" comes out with the wrong sign, fix it. */ | |
04f7ec69 | 2518 | if (i2 < 0 ? i1 > 0 : i1 < 0) |
44fa9da5 PE |
2519 | i1 += i2; |
2520 | ||
f187f1f7 | 2521 | XSETINT (val, i1); |
44fa9da5 PE |
2522 | return val; |
2523 | } | |
2524 | ||
7921925c JB |
2525 | DEFUN ("max", Fmax, Smax, 1, MANY, 0, |
2526 | "Return largest of all the arguments (which must be numbers or markers).\n\ | |
2527 | The value is always a number; markers are converted to numbers.") | |
2528 | (nargs, args) | |
2529 | int nargs; | |
2530 | Lisp_Object *args; | |
2531 | { | |
2532 | return arith_driver (Amax, nargs, args); | |
2533 | } | |
2534 | ||
2535 | DEFUN ("min", Fmin, Smin, 1, MANY, 0, | |
2536 | "Return smallest of all the arguments (which must be numbers or markers).\n\ | |
2537 | The value is always a number; markers are converted to numbers.") | |
2538 | (nargs, args) | |
2539 | int nargs; | |
2540 | Lisp_Object *args; | |
2541 | { | |
2542 | return arith_driver (Amin, nargs, args); | |
2543 | } | |
2544 | ||
2545 | DEFUN ("logand", Flogand, Slogand, 0, MANY, 0, | |
2546 | "Return bitwise-and of all the arguments.\n\ | |
2547 | Arguments may be integers, or markers converted to integers.") | |
2548 | (nargs, args) | |
2549 | int nargs; | |
2550 | Lisp_Object *args; | |
2551 | { | |
2552 | return arith_driver (Alogand, nargs, args); | |
2553 | } | |
2554 | ||
2555 | DEFUN ("logior", Flogior, Slogior, 0, MANY, 0, | |
2556 | "Return bitwise-or of all the arguments.\n\ | |
2557 | Arguments may be integers, or markers converted to integers.") | |
2558 | (nargs, args) | |
2559 | int nargs; | |
2560 | Lisp_Object *args; | |
2561 | { | |
2562 | return arith_driver (Alogior, nargs, args); | |
2563 | } | |
2564 | ||
2565 | DEFUN ("logxor", Flogxor, Slogxor, 0, MANY, 0, | |
2566 | "Return bitwise-exclusive-or of all the arguments.\n\ | |
2567 | Arguments may be integers, or markers converted to integers.") | |
2568 | (nargs, args) | |
2569 | int nargs; | |
2570 | Lisp_Object *args; | |
2571 | { | |
2572 | return arith_driver (Alogxor, nargs, args); | |
2573 | } | |
2574 | ||
2575 | DEFUN ("ash", Fash, Sash, 2, 2, 0, | |
2576 | "Return VALUE with its bits shifted left by COUNT.\n\ | |
2577 | If COUNT is negative, shifting is actually to the right.\n\ | |
2578 | In this case, the sign bit is duplicated.") | |
3b9f7964 RS |
2579 | (value, count) |
2580 | register Lisp_Object value, count; | |
7921925c JB |
2581 | { |
2582 | register Lisp_Object val; | |
2583 | ||
3d9652eb RS |
2584 | CHECK_NUMBER (value, 0); |
2585 | CHECK_NUMBER (count, 1); | |
7921925c | 2586 | |
81d70626 RS |
2587 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2588 | XSETINT (val, 0); | |
2589 | else if (XINT (count) > 0) | |
3d9652eb | 2590 | XSETINT (val, XINT (value) << XFASTINT (count)); |
81d70626 RS |
2591 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2592 | XSETINT (val, XINT (value) < 0 ? -1 : 0); | |
7921925c | 2593 | else |
3d9652eb | 2594 | XSETINT (val, XINT (value) >> -XINT (count)); |
7921925c JB |
2595 | return val; |
2596 | } | |
2597 | ||
2598 | DEFUN ("lsh", Flsh, Slsh, 2, 2, 0, | |
2599 | "Return VALUE with its bits shifted left by COUNT.\n\ | |
2600 | If COUNT is negative, shifting is actually to the right.\n\ | |
2601 | In this case, zeros are shifted in on the left.") | |
3d9652eb RS |
2602 | (value, count) |
2603 | register Lisp_Object value, count; | |
7921925c JB |
2604 | { |
2605 | register Lisp_Object val; | |
2606 | ||
3d9652eb RS |
2607 | CHECK_NUMBER (value, 0); |
2608 | CHECK_NUMBER (count, 1); | |
7921925c | 2609 | |
81d70626 RS |
2610 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2611 | XSETINT (val, 0); | |
2612 | else if (XINT (count) > 0) | |
3d9652eb | 2613 | XSETINT (val, (EMACS_UINT) XUINT (value) << XFASTINT (count)); |
81d70626 RS |
2614 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2615 | XSETINT (val, 0); | |
7921925c | 2616 | else |
3d9652eb | 2617 | XSETINT (val, (EMACS_UINT) XUINT (value) >> -XINT (count)); |
7921925c JB |
2618 | return val; |
2619 | } | |
2620 | ||
2621 | DEFUN ("1+", Fadd1, Sadd1, 1, 1, 0, | |
2622 | "Return NUMBER plus one. NUMBER may be a number or a marker.\n\ | |
2623 | Markers are converted to integers.") | |
d9c2a0f2 EN |
2624 | (number) |
2625 | register Lisp_Object number; | |
7921925c | 2626 | { |
d9c2a0f2 | 2627 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number, 0); |
7921925c | 2628 | |
d9c2a0f2 | 2629 | if (FLOATP (number)) |
7539e11f | 2630 | return (make_float (1.0 + XFLOAT_DATA (number))); |
7921925c | 2631 | |
d9c2a0f2 EN |
2632 | XSETINT (number, XINT (number) + 1); |
2633 | return number; | |
7921925c JB |
2634 | } |
2635 | ||
2636 | DEFUN ("1-", Fsub1, Ssub1, 1, 1, 0, | |
2637 | "Return NUMBER minus one. NUMBER may be a number or a marker.\n\ | |
2638 | Markers are converted to integers.") | |
d9c2a0f2 EN |
2639 | (number) |
2640 | register Lisp_Object number; | |
7921925c | 2641 | { |
d9c2a0f2 | 2642 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number, 0); |
7921925c | 2643 | |
d9c2a0f2 | 2644 | if (FLOATP (number)) |
7539e11f | 2645 | return (make_float (-1.0 + XFLOAT_DATA (number))); |
7921925c | 2646 | |
d9c2a0f2 EN |
2647 | XSETINT (number, XINT (number) - 1); |
2648 | return number; | |
7921925c JB |
2649 | } |
2650 | ||
2651 | DEFUN ("lognot", Flognot, Slognot, 1, 1, 0, | |
d9c2a0f2 EN |
2652 | "Return the bitwise complement of NUMBER. NUMBER must be an integer.") |
2653 | (number) | |
2654 | register Lisp_Object number; | |
7921925c | 2655 | { |
d9c2a0f2 | 2656 | CHECK_NUMBER (number, 0); |
53924017 | 2657 | XSETINT (number, ~XINT (number)); |
d9c2a0f2 | 2658 | return number; |
7921925c JB |
2659 | } |
2660 | \f | |
2661 | void | |
2662 | syms_of_data () | |
2663 | { | |
6315e761 RS |
2664 | Lisp_Object error_tail, arith_tail; |
2665 | ||
7921925c JB |
2666 | Qquote = intern ("quote"); |
2667 | Qlambda = intern ("lambda"); | |
2668 | Qsubr = intern ("subr"); | |
2669 | Qerror_conditions = intern ("error-conditions"); | |
2670 | Qerror_message = intern ("error-message"); | |
2671 | Qtop_level = intern ("top-level"); | |
2672 | ||
2673 | Qerror = intern ("error"); | |
2674 | Qquit = intern ("quit"); | |
2675 | Qwrong_type_argument = intern ("wrong-type-argument"); | |
2676 | Qargs_out_of_range = intern ("args-out-of-range"); | |
2677 | Qvoid_function = intern ("void-function"); | |
ffd56f97 | 2678 | Qcyclic_function_indirection = intern ("cyclic-function-indirection"); |
7921925c JB |
2679 | Qvoid_variable = intern ("void-variable"); |
2680 | Qsetting_constant = intern ("setting-constant"); | |
2681 | Qinvalid_read_syntax = intern ("invalid-read-syntax"); | |
2682 | ||
2683 | Qinvalid_function = intern ("invalid-function"); | |
2684 | Qwrong_number_of_arguments = intern ("wrong-number-of-arguments"); | |
2685 | Qno_catch = intern ("no-catch"); | |
2686 | Qend_of_file = intern ("end-of-file"); | |
2687 | Qarith_error = intern ("arith-error"); | |
2688 | Qbeginning_of_buffer = intern ("beginning-of-buffer"); | |
2689 | Qend_of_buffer = intern ("end-of-buffer"); | |
2690 | Qbuffer_read_only = intern ("buffer-read-only"); | |
8f9f49d7 | 2691 | Qtext_read_only = intern ("text-read-only"); |
3b8819d6 | 2692 | Qmark_inactive = intern ("mark-inactive"); |
7921925c JB |
2693 | |
2694 | Qlistp = intern ("listp"); | |
2695 | Qconsp = intern ("consp"); | |
2696 | Qsymbolp = intern ("symbolp"); | |
cda9b832 | 2697 | Qkeywordp = intern ("keywordp"); |
7921925c JB |
2698 | Qintegerp = intern ("integerp"); |
2699 | Qnatnump = intern ("natnump"); | |
8e86942b | 2700 | Qwholenump = intern ("wholenump"); |
7921925c JB |
2701 | Qstringp = intern ("stringp"); |
2702 | Qarrayp = intern ("arrayp"); | |
2703 | Qsequencep = intern ("sequencep"); | |
2704 | Qbufferp = intern ("bufferp"); | |
2705 | Qvectorp = intern ("vectorp"); | |
2706 | Qchar_or_string_p = intern ("char-or-string-p"); | |
2707 | Qmarkerp = intern ("markerp"); | |
07bd8472 | 2708 | Qbuffer_or_string_p = intern ("buffer-or-string-p"); |
7921925c JB |
2709 | Qinteger_or_marker_p = intern ("integer-or-marker-p"); |
2710 | Qboundp = intern ("boundp"); | |
2711 | Qfboundp = intern ("fboundp"); | |
2712 | ||
7921925c JB |
2713 | Qfloatp = intern ("floatp"); |
2714 | Qnumberp = intern ("numberp"); | |
2715 | Qnumber_or_marker_p = intern ("number-or-marker-p"); | |
7921925c | 2716 | |
4d276982 | 2717 | Qchar_table_p = intern ("char-table-p"); |
7f0edce7 | 2718 | Qvector_or_char_table_p = intern ("vector-or-char-table-p"); |
4d276982 | 2719 | |
6f0e897f DL |
2720 | Qsubrp = intern ("subrp"); |
2721 | Qunevalled = intern ("unevalled"); | |
2722 | Qmany = intern ("many"); | |
2723 | ||
7921925c JB |
2724 | Qcdr = intern ("cdr"); |
2725 | ||
f845f2c9 | 2726 | /* Handle automatic advice activation */ |
ab297811 | 2727 | Qad_advice_info = intern ("ad-advice-info"); |
c1307a23 | 2728 | Qad_activate_internal = intern ("ad-activate-internal"); |
f845f2c9 | 2729 | |
6315e761 RS |
2730 | error_tail = Fcons (Qerror, Qnil); |
2731 | ||
7921925c JB |
2732 | /* ERROR is used as a signaler for random errors for which nothing else is right */ |
2733 | ||
2734 | Fput (Qerror, Qerror_conditions, | |
6315e761 | 2735 | error_tail); |
7921925c JB |
2736 | Fput (Qerror, Qerror_message, |
2737 | build_string ("error")); | |
2738 | ||
2739 | Fput (Qquit, Qerror_conditions, | |
2740 | Fcons (Qquit, Qnil)); | |
2741 | Fput (Qquit, Qerror_message, | |
2742 | build_string ("Quit")); | |
2743 | ||
2744 | Fput (Qwrong_type_argument, Qerror_conditions, | |
6315e761 | 2745 | Fcons (Qwrong_type_argument, error_tail)); |
7921925c JB |
2746 | Fput (Qwrong_type_argument, Qerror_message, |
2747 | build_string ("Wrong type argument")); | |
2748 | ||
2749 | Fput (Qargs_out_of_range, Qerror_conditions, | |
6315e761 | 2750 | Fcons (Qargs_out_of_range, error_tail)); |
7921925c JB |
2751 | Fput (Qargs_out_of_range, Qerror_message, |
2752 | build_string ("Args out of range")); | |
2753 | ||
2754 | Fput (Qvoid_function, Qerror_conditions, | |
6315e761 | 2755 | Fcons (Qvoid_function, error_tail)); |
7921925c JB |
2756 | Fput (Qvoid_function, Qerror_message, |
2757 | build_string ("Symbol's function definition is void")); | |
2758 | ||
ffd56f97 | 2759 | Fput (Qcyclic_function_indirection, Qerror_conditions, |
6315e761 | 2760 | Fcons (Qcyclic_function_indirection, error_tail)); |
ffd56f97 JB |
2761 | Fput (Qcyclic_function_indirection, Qerror_message, |
2762 | build_string ("Symbol's chain of function indirections contains a loop")); | |
2763 | ||
7921925c | 2764 | Fput (Qvoid_variable, Qerror_conditions, |
6315e761 | 2765 | Fcons (Qvoid_variable, error_tail)); |
7921925c JB |
2766 | Fput (Qvoid_variable, Qerror_message, |
2767 | build_string ("Symbol's value as variable is void")); | |
2768 | ||
2769 | Fput (Qsetting_constant, Qerror_conditions, | |
6315e761 | 2770 | Fcons (Qsetting_constant, error_tail)); |
7921925c JB |
2771 | Fput (Qsetting_constant, Qerror_message, |
2772 | build_string ("Attempt to set a constant symbol")); | |
2773 | ||
2774 | Fput (Qinvalid_read_syntax, Qerror_conditions, | |
6315e761 | 2775 | Fcons (Qinvalid_read_syntax, error_tail)); |
7921925c JB |
2776 | Fput (Qinvalid_read_syntax, Qerror_message, |
2777 | build_string ("Invalid read syntax")); | |
2778 | ||
2779 | Fput (Qinvalid_function, Qerror_conditions, | |
6315e761 | 2780 | Fcons (Qinvalid_function, error_tail)); |
7921925c JB |
2781 | Fput (Qinvalid_function, Qerror_message, |
2782 | build_string ("Invalid function")); | |
2783 | ||
2784 | Fput (Qwrong_number_of_arguments, Qerror_conditions, | |
6315e761 | 2785 | Fcons (Qwrong_number_of_arguments, error_tail)); |
7921925c JB |
2786 | Fput (Qwrong_number_of_arguments, Qerror_message, |
2787 | build_string ("Wrong number of arguments")); | |
2788 | ||
2789 | Fput (Qno_catch, Qerror_conditions, | |
6315e761 | 2790 | Fcons (Qno_catch, error_tail)); |
7921925c JB |
2791 | Fput (Qno_catch, Qerror_message, |
2792 | build_string ("No catch for tag")); | |
2793 | ||
2794 | Fput (Qend_of_file, Qerror_conditions, | |
6315e761 | 2795 | Fcons (Qend_of_file, error_tail)); |
7921925c JB |
2796 | Fput (Qend_of_file, Qerror_message, |
2797 | build_string ("End of file during parsing")); | |
2798 | ||
6315e761 | 2799 | arith_tail = Fcons (Qarith_error, error_tail); |
7921925c | 2800 | Fput (Qarith_error, Qerror_conditions, |
6315e761 | 2801 | arith_tail); |
7921925c JB |
2802 | Fput (Qarith_error, Qerror_message, |
2803 | build_string ("Arithmetic error")); | |
2804 | ||
2805 | Fput (Qbeginning_of_buffer, Qerror_conditions, | |
6315e761 | 2806 | Fcons (Qbeginning_of_buffer, error_tail)); |
7921925c JB |
2807 | Fput (Qbeginning_of_buffer, Qerror_message, |
2808 | build_string ("Beginning of buffer")); | |
2809 | ||
2810 | Fput (Qend_of_buffer, Qerror_conditions, | |
6315e761 | 2811 | Fcons (Qend_of_buffer, error_tail)); |
7921925c JB |
2812 | Fput (Qend_of_buffer, Qerror_message, |
2813 | build_string ("End of buffer")); | |
2814 | ||
2815 | Fput (Qbuffer_read_only, Qerror_conditions, | |
6315e761 | 2816 | Fcons (Qbuffer_read_only, error_tail)); |
7921925c JB |
2817 | Fput (Qbuffer_read_only, Qerror_message, |
2818 | build_string ("Buffer is read-only")); | |
2819 | ||
8f9f49d7 GM |
2820 | Fput (Qtext_read_only, Qerror_conditions, |
2821 | Fcons (Qtext_read_only, error_tail)); | |
2822 | Fput (Qtext_read_only, Qerror_message, | |
2823 | build_string ("Text is read-only")); | |
2824 | ||
6315e761 RS |
2825 | Qrange_error = intern ("range-error"); |
2826 | Qdomain_error = intern ("domain-error"); | |
2827 | Qsingularity_error = intern ("singularity-error"); | |
2828 | Qoverflow_error = intern ("overflow-error"); | |
2829 | Qunderflow_error = intern ("underflow-error"); | |
2830 | ||
2831 | Fput (Qdomain_error, Qerror_conditions, | |
2832 | Fcons (Qdomain_error, arith_tail)); | |
2833 | Fput (Qdomain_error, Qerror_message, | |
2834 | build_string ("Arithmetic domain error")); | |
2835 | ||
2836 | Fput (Qrange_error, Qerror_conditions, | |
2837 | Fcons (Qrange_error, arith_tail)); | |
2838 | Fput (Qrange_error, Qerror_message, | |
2839 | build_string ("Arithmetic range error")); | |
2840 | ||
2841 | Fput (Qsingularity_error, Qerror_conditions, | |
2842 | Fcons (Qsingularity_error, Fcons (Qdomain_error, arith_tail))); | |
2843 | Fput (Qsingularity_error, Qerror_message, | |
2844 | build_string ("Arithmetic singularity error")); | |
2845 | ||
2846 | Fput (Qoverflow_error, Qerror_conditions, | |
2847 | Fcons (Qoverflow_error, Fcons (Qdomain_error, arith_tail))); | |
2848 | Fput (Qoverflow_error, Qerror_message, | |
2849 | build_string ("Arithmetic overflow error")); | |
2850 | ||
2851 | Fput (Qunderflow_error, Qerror_conditions, | |
2852 | Fcons (Qunderflow_error, Fcons (Qdomain_error, arith_tail))); | |
2853 | Fput (Qunderflow_error, Qerror_message, | |
2854 | build_string ("Arithmetic underflow error")); | |
2855 | ||
2856 | staticpro (&Qrange_error); | |
2857 | staticpro (&Qdomain_error); | |
2858 | staticpro (&Qsingularity_error); | |
2859 | staticpro (&Qoverflow_error); | |
2860 | staticpro (&Qunderflow_error); | |
6315e761 | 2861 | |
7921925c JB |
2862 | staticpro (&Qnil); |
2863 | staticpro (&Qt); | |
2864 | staticpro (&Qquote); | |
2865 | staticpro (&Qlambda); | |
2866 | staticpro (&Qsubr); | |
2867 | staticpro (&Qunbound); | |
2868 | staticpro (&Qerror_conditions); | |
2869 | staticpro (&Qerror_message); | |
2870 | staticpro (&Qtop_level); | |
2871 | ||
2872 | staticpro (&Qerror); | |
2873 | staticpro (&Qquit); | |
2874 | staticpro (&Qwrong_type_argument); | |
2875 | staticpro (&Qargs_out_of_range); | |
2876 | staticpro (&Qvoid_function); | |
ffd56f97 | 2877 | staticpro (&Qcyclic_function_indirection); |
7921925c JB |
2878 | staticpro (&Qvoid_variable); |
2879 | staticpro (&Qsetting_constant); | |
2880 | staticpro (&Qinvalid_read_syntax); | |
2881 | staticpro (&Qwrong_number_of_arguments); | |
2882 | staticpro (&Qinvalid_function); | |
2883 | staticpro (&Qno_catch); | |
2884 | staticpro (&Qend_of_file); | |
2885 | staticpro (&Qarith_error); | |
2886 | staticpro (&Qbeginning_of_buffer); | |
2887 | staticpro (&Qend_of_buffer); | |
2888 | staticpro (&Qbuffer_read_only); | |
8f9f49d7 | 2889 | staticpro (&Qtext_read_only); |
638b77e6 | 2890 | staticpro (&Qmark_inactive); |
7921925c JB |
2891 | |
2892 | staticpro (&Qlistp); | |
2893 | staticpro (&Qconsp); | |
2894 | staticpro (&Qsymbolp); | |
cda9b832 | 2895 | staticpro (&Qkeywordp); |
7921925c JB |
2896 | staticpro (&Qintegerp); |
2897 | staticpro (&Qnatnump); | |
8e86942b | 2898 | staticpro (&Qwholenump); |
7921925c JB |
2899 | staticpro (&Qstringp); |
2900 | staticpro (&Qarrayp); | |
2901 | staticpro (&Qsequencep); | |
2902 | staticpro (&Qbufferp); | |
2903 | staticpro (&Qvectorp); | |
2904 | staticpro (&Qchar_or_string_p); | |
2905 | staticpro (&Qmarkerp); | |
07bd8472 | 2906 | staticpro (&Qbuffer_or_string_p); |
7921925c | 2907 | staticpro (&Qinteger_or_marker_p); |
7921925c | 2908 | staticpro (&Qfloatp); |
464f8898 RS |
2909 | staticpro (&Qnumberp); |
2910 | staticpro (&Qnumber_or_marker_p); | |
4d276982 | 2911 | staticpro (&Qchar_table_p); |
7f0edce7 | 2912 | staticpro (&Qvector_or_char_table_p); |
6f0e897f DL |
2913 | staticpro (&Qsubrp); |
2914 | staticpro (&Qmany); | |
2915 | staticpro (&Qunevalled); | |
7921925c JB |
2916 | |
2917 | staticpro (&Qboundp); | |
2918 | staticpro (&Qfboundp); | |
2919 | staticpro (&Qcdr); | |
ab297811 | 2920 | staticpro (&Qad_advice_info); |
c1307a23 | 2921 | staticpro (&Qad_activate_internal); |
7921925c | 2922 | |
39bcc759 RS |
2923 | /* Types that type-of returns. */ |
2924 | Qinteger = intern ("integer"); | |
2925 | Qsymbol = intern ("symbol"); | |
2926 | Qstring = intern ("string"); | |
2927 | Qcons = intern ("cons"); | |
2928 | Qmarker = intern ("marker"); | |
2929 | Qoverlay = intern ("overlay"); | |
2930 | Qfloat = intern ("float"); | |
2931 | Qwindow_configuration = intern ("window-configuration"); | |
2932 | Qprocess = intern ("process"); | |
2933 | Qwindow = intern ("window"); | |
2934 | /* Qsubr = intern ("subr"); */ | |
2935 | Qcompiled_function = intern ("compiled-function"); | |
2936 | Qbuffer = intern ("buffer"); | |
2937 | Qframe = intern ("frame"); | |
2938 | Qvector = intern ("vector"); | |
fc67d5be KH |
2939 | Qchar_table = intern ("char-table"); |
2940 | Qbool_vector = intern ("bool-vector"); | |
81dc5de5 | 2941 | Qhash_table = intern ("hash-table"); |
39bcc759 RS |
2942 | |
2943 | staticpro (&Qinteger); | |
2944 | staticpro (&Qsymbol); | |
2945 | staticpro (&Qstring); | |
2946 | staticpro (&Qcons); | |
2947 | staticpro (&Qmarker); | |
2948 | staticpro (&Qoverlay); | |
2949 | staticpro (&Qfloat); | |
2950 | staticpro (&Qwindow_configuration); | |
2951 | staticpro (&Qprocess); | |
2952 | staticpro (&Qwindow); | |
2953 | /* staticpro (&Qsubr); */ | |
2954 | staticpro (&Qcompiled_function); | |
2955 | staticpro (&Qbuffer); | |
2956 | staticpro (&Qframe); | |
2957 | staticpro (&Qvector); | |
fc67d5be KH |
2958 | staticpro (&Qchar_table); |
2959 | staticpro (&Qbool_vector); | |
81dc5de5 | 2960 | staticpro (&Qhash_table); |
39bcc759 | 2961 | |
7921925c JB |
2962 | defsubr (&Seq); |
2963 | defsubr (&Snull); | |
39bcc759 | 2964 | defsubr (&Stype_of); |
7921925c JB |
2965 | defsubr (&Slistp); |
2966 | defsubr (&Snlistp); | |
2967 | defsubr (&Sconsp); | |
2968 | defsubr (&Satom); | |
2969 | defsubr (&Sintegerp); | |
464f8898 | 2970 | defsubr (&Sinteger_or_marker_p); |
7921925c JB |
2971 | defsubr (&Snumberp); |
2972 | defsubr (&Snumber_or_marker_p); | |
464f8898 | 2973 | defsubr (&Sfloatp); |
7921925c JB |
2974 | defsubr (&Snatnump); |
2975 | defsubr (&Ssymbolp); | |
cda9b832 | 2976 | defsubr (&Skeywordp); |
7921925c | 2977 | defsubr (&Sstringp); |
0f56470d | 2978 | defsubr (&Smultibyte_string_p); |
7921925c | 2979 | defsubr (&Svectorp); |
4d276982 | 2980 | defsubr (&Schar_table_p); |
7f0edce7 | 2981 | defsubr (&Svector_or_char_table_p); |
4d276982 | 2982 | defsubr (&Sbool_vector_p); |
7921925c JB |
2983 | defsubr (&Sarrayp); |
2984 | defsubr (&Ssequencep); | |
2985 | defsubr (&Sbufferp); | |
2986 | defsubr (&Smarkerp); | |
7921925c | 2987 | defsubr (&Ssubrp); |
dbc4e1c1 | 2988 | defsubr (&Sbyte_code_function_p); |
7921925c JB |
2989 | defsubr (&Schar_or_string_p); |
2990 | defsubr (&Scar); | |
2991 | defsubr (&Scdr); | |
2992 | defsubr (&Scar_safe); | |
2993 | defsubr (&Scdr_safe); | |
2994 | defsubr (&Ssetcar); | |
2995 | defsubr (&Ssetcdr); | |
2996 | defsubr (&Ssymbol_function); | |
ffd56f97 | 2997 | defsubr (&Sindirect_function); |
7921925c JB |
2998 | defsubr (&Ssymbol_plist); |
2999 | defsubr (&Ssymbol_name); | |
3000 | defsubr (&Smakunbound); | |
3001 | defsubr (&Sfmakunbound); | |
3002 | defsubr (&Sboundp); | |
3003 | defsubr (&Sfboundp); | |
3004 | defsubr (&Sfset); | |
80df38a2 | 3005 | defsubr (&Sdefalias); |
7921925c JB |
3006 | defsubr (&Ssetplist); |
3007 | defsubr (&Ssymbol_value); | |
3008 | defsubr (&Sset); | |
3009 | defsubr (&Sdefault_boundp); | |
3010 | defsubr (&Sdefault_value); | |
3011 | defsubr (&Sset_default); | |
3012 | defsubr (&Ssetq_default); | |
3013 | defsubr (&Smake_variable_buffer_local); | |
3014 | defsubr (&Smake_local_variable); | |
3015 | defsubr (&Skill_local_variable); | |
b0c2d1c6 | 3016 | defsubr (&Smake_variable_frame_local); |
62476adc | 3017 | defsubr (&Slocal_variable_p); |
f4f04cee | 3018 | defsubr (&Slocal_variable_if_set_p); |
7921925c JB |
3019 | defsubr (&Saref); |
3020 | defsubr (&Saset); | |
f2980264 | 3021 | defsubr (&Snumber_to_string); |
25e40a4b | 3022 | defsubr (&Sstring_to_number); |
7921925c JB |
3023 | defsubr (&Seqlsign); |
3024 | defsubr (&Slss); | |
3025 | defsubr (&Sgtr); | |
3026 | defsubr (&Sleq); | |
3027 | defsubr (&Sgeq); | |
3028 | defsubr (&Sneq); | |
3029 | defsubr (&Szerop); | |
3030 | defsubr (&Splus); | |
3031 | defsubr (&Sminus); | |
3032 | defsubr (&Stimes); | |
3033 | defsubr (&Squo); | |
3034 | defsubr (&Srem); | |
44fa9da5 | 3035 | defsubr (&Smod); |
7921925c JB |
3036 | defsubr (&Smax); |
3037 | defsubr (&Smin); | |
3038 | defsubr (&Slogand); | |
3039 | defsubr (&Slogior); | |
3040 | defsubr (&Slogxor); | |
3041 | defsubr (&Slsh); | |
3042 | defsubr (&Sash); | |
3043 | defsubr (&Sadd1); | |
3044 | defsubr (&Ssub1); | |
3045 | defsubr (&Slognot); | |
6f0e897f | 3046 | defsubr (&Ssubr_arity); |
8e86942b | 3047 | |
c80bd143 | 3048 | XSYMBOL (Qwholenump)->function = XSYMBOL (Qnatnump)->function; |
7921925c JB |
3049 | } |
3050 | ||
a33ef3ab | 3051 | SIGTYPE |
7921925c JB |
3052 | arith_error (signo) |
3053 | int signo; | |
3054 | { | |
fe42a920 | 3055 | #if defined(USG) && !defined(POSIX_SIGNALS) |
7921925c JB |
3056 | /* USG systems forget handlers when they are used; |
3057 | must reestablish each time */ | |
3058 | signal (signo, arith_error); | |
3059 | #endif /* USG */ | |
3060 | #ifdef VMS | |
3061 | /* VMS systems are like USG. */ | |
3062 | signal (signo, arith_error); | |
3063 | #endif /* VMS */ | |
3064 | #ifdef BSD4_1 | |
3065 | sigrelse (SIGFPE); | |
3066 | #else /* not BSD4_1 */ | |
e065a56e | 3067 | sigsetmask (SIGEMPTYMASK); |
7921925c JB |
3068 | #endif /* not BSD4_1 */ |
3069 | ||
3070 | Fsignal (Qarith_error, Qnil); | |
3071 | } | |
3072 | ||
dfcf069d | 3073 | void |
7921925c JB |
3074 | init_data () |
3075 | { | |
3076 | /* Don't do this if just dumping out. | |
3077 | We don't want to call `signal' in this case | |
3078 | so that we don't have trouble with dumping | |
3079 | signal-delivering routines in an inconsistent state. */ | |
3080 | #ifndef CANNOT_DUMP | |
3081 | if (!initialized) | |
3082 | return; | |
3083 | #endif /* CANNOT_DUMP */ | |
3084 | signal (SIGFPE, arith_error); | |
7403b5c8 | 3085 | |
7921925c JB |
3086 | #ifdef uts |
3087 | signal (SIGEMT, arith_error); | |
3088 | #endif /* uts */ | |
3089 | } |