| 1 | /* Primitive operations on Lisp data types for GNU Emacs Lisp interpreter. |
| 2 | Copyright (C) 1985, 1986, 1988, 1992 Free Software Foundation, Inc. |
| 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 |
| 8 | the Free Software Foundation; either version 1, or (at your option) |
| 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 |
| 18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 19 | |
| 20 | |
| 21 | #include <signal.h> |
| 22 | |
| 23 | #include "config.h" |
| 24 | #include "lisp.h" |
| 25 | #include "puresize.h" |
| 26 | |
| 27 | #ifndef standalone |
| 28 | #include "buffer.h" |
| 29 | #endif |
| 30 | |
| 31 | #include "syssignal.h" |
| 32 | |
| 33 | #ifdef LISP_FLOAT_TYPE |
| 34 | #include <math.h> |
| 35 | #endif /* LISP_FLOAT_TYPE */ |
| 36 | |
| 37 | Lisp_Object Qnil, Qt, Qquote, Qlambda, Qsubr, Qunbound; |
| 38 | Lisp_Object Qerror_conditions, Qerror_message, Qtop_level; |
| 39 | Lisp_Object Qerror, Qquit, Qwrong_type_argument, Qargs_out_of_range; |
| 40 | Lisp_Object Qvoid_variable, Qvoid_function, Qcyclic_function_indirection; |
| 41 | Lisp_Object Qsetting_constant, Qinvalid_read_syntax; |
| 42 | Lisp_Object Qinvalid_function, Qwrong_number_of_arguments, Qno_catch; |
| 43 | Lisp_Object Qend_of_file, Qarith_error; |
| 44 | Lisp_Object Qbeginning_of_buffer, Qend_of_buffer, Qbuffer_read_only; |
| 45 | Lisp_Object Qintegerp, Qnatnump, Qsymbolp, Qlistp, Qconsp; |
| 46 | Lisp_Object Qstringp, Qarrayp, Qsequencep, Qbufferp; |
| 47 | Lisp_Object Qchar_or_string_p, Qmarkerp, Qinteger_or_marker_p, Qvectorp; |
| 48 | Lisp_Object Qbuffer_or_string_p; |
| 49 | Lisp_Object Qboundp, Qfboundp; |
| 50 | Lisp_Object Qcdr; |
| 51 | |
| 52 | Lisp_Object Qrange_error, Qdomain_error, Qsingularity_error; |
| 53 | Lisp_Object Qoverflow_error, Qunderflow_error; |
| 54 | |
| 55 | #ifdef LISP_FLOAT_TYPE |
| 56 | Lisp_Object Qfloatp; |
| 57 | Lisp_Object Qnumberp, Qnumber_or_marker_p; |
| 58 | #endif |
| 59 | |
| 60 | static Lisp_Object swap_in_symval_forwarding (); |
| 61 | |
| 62 | Lisp_Object |
| 63 | wrong_type_argument (predicate, value) |
| 64 | register Lisp_Object predicate, value; |
| 65 | { |
| 66 | register Lisp_Object tem; |
| 67 | do |
| 68 | { |
| 69 | if (!EQ (Vmocklisp_arguments, Qt)) |
| 70 | { |
| 71 | if (XTYPE (value) == Lisp_String && |
| 72 | (EQ (predicate, Qintegerp) || EQ (predicate, Qinteger_or_marker_p))) |
| 73 | return Fstring_to_number (value); |
| 74 | if (XTYPE (value) == Lisp_Int && EQ (predicate, Qstringp)) |
| 75 | return Fint_to_string (value); |
| 76 | } |
| 77 | value = Fsignal (Qwrong_type_argument, Fcons (predicate, Fcons (value, Qnil))); |
| 78 | tem = call1 (predicate, value); |
| 79 | } |
| 80 | while (NILP (tem)); |
| 81 | return value; |
| 82 | } |
| 83 | |
| 84 | pure_write_error () |
| 85 | { |
| 86 | error ("Attempt to modify read-only object"); |
| 87 | } |
| 88 | |
| 89 | void |
| 90 | args_out_of_range (a1, a2) |
| 91 | Lisp_Object a1, a2; |
| 92 | { |
| 93 | while (1) |
| 94 | Fsignal (Qargs_out_of_range, Fcons (a1, Fcons (a2, Qnil))); |
| 95 | } |
| 96 | |
| 97 | void |
| 98 | args_out_of_range_3 (a1, a2, a3) |
| 99 | Lisp_Object a1, a2, a3; |
| 100 | { |
| 101 | while (1) |
| 102 | Fsignal (Qargs_out_of_range, Fcons (a1, Fcons (a2, Fcons (a3, Qnil)))); |
| 103 | } |
| 104 | |
| 105 | Lisp_Object |
| 106 | make_number (num) |
| 107 | int num; |
| 108 | { |
| 109 | register Lisp_Object val; |
| 110 | XSET (val, Lisp_Int, num); |
| 111 | return val; |
| 112 | } |
| 113 | |
| 114 | /* On some machines, XINT needs a temporary location. |
| 115 | Here it is, in case it is needed. */ |
| 116 | |
| 117 | int sign_extend_temp; |
| 118 | |
| 119 | /* On a few machines, XINT can only be done by calling this. */ |
| 120 | |
| 121 | int |
| 122 | sign_extend_lisp_int (num) |
| 123 | int num; |
| 124 | { |
| 125 | if (num & (1 << (VALBITS - 1))) |
| 126 | return num | ((-1) << VALBITS); |
| 127 | else |
| 128 | return num & ((1 << VALBITS) - 1); |
| 129 | } |
| 130 | \f |
| 131 | /* Data type predicates */ |
| 132 | |
| 133 | DEFUN ("eq", Feq, Seq, 2, 2, 0, |
| 134 | "T if the two args are the same Lisp object.") |
| 135 | (obj1, obj2) |
| 136 | Lisp_Object obj1, obj2; |
| 137 | { |
| 138 | if (EQ (obj1, obj2)) |
| 139 | return Qt; |
| 140 | return Qnil; |
| 141 | } |
| 142 | |
| 143 | DEFUN ("null", Fnull, Snull, 1, 1, 0, "T if OBJECT is nil.") |
| 144 | (obj) |
| 145 | Lisp_Object obj; |
| 146 | { |
| 147 | if (NILP (obj)) |
| 148 | return Qt; |
| 149 | return Qnil; |
| 150 | } |
| 151 | |
| 152 | DEFUN ("consp", Fconsp, Sconsp, 1, 1, 0, "T if OBJECT is a cons cell.") |
| 153 | (obj) |
| 154 | Lisp_Object obj; |
| 155 | { |
| 156 | if (XTYPE (obj) == Lisp_Cons) |
| 157 | return Qt; |
| 158 | return Qnil; |
| 159 | } |
| 160 | |
| 161 | DEFUN ("atom", Fatom, Satom, 1, 1, 0, "T if OBJECT is not a cons cell. This includes nil.") |
| 162 | (obj) |
| 163 | Lisp_Object obj; |
| 164 | { |
| 165 | if (XTYPE (obj) == Lisp_Cons) |
| 166 | return Qnil; |
| 167 | return Qt; |
| 168 | } |
| 169 | |
| 170 | DEFUN ("listp", Flistp, Slistp, 1, 1, 0, "T if OBJECT is a list. This includes nil.") |
| 171 | (obj) |
| 172 | Lisp_Object obj; |
| 173 | { |
| 174 | if (XTYPE (obj) == Lisp_Cons || NILP (obj)) |
| 175 | return Qt; |
| 176 | return Qnil; |
| 177 | } |
| 178 | |
| 179 | DEFUN ("nlistp", Fnlistp, Snlistp, 1, 1, 0, "T if OBJECT is not a list. Lists include nil.") |
| 180 | (obj) |
| 181 | Lisp_Object obj; |
| 182 | { |
| 183 | if (XTYPE (obj) == Lisp_Cons || NILP (obj)) |
| 184 | return Qnil; |
| 185 | return Qt; |
| 186 | } |
| 187 | \f |
| 188 | DEFUN ("symbolp", Fsymbolp, Ssymbolp, 1, 1, 0, "T if OBJECT is a symbol.") |
| 189 | (obj) |
| 190 | Lisp_Object obj; |
| 191 | { |
| 192 | if (XTYPE (obj) == Lisp_Symbol) |
| 193 | return Qt; |
| 194 | return Qnil; |
| 195 | } |
| 196 | |
| 197 | DEFUN ("vectorp", Fvectorp, Svectorp, 1, 1, 0, "T if OBJECT is a vector.") |
| 198 | (obj) |
| 199 | Lisp_Object obj; |
| 200 | { |
| 201 | if (XTYPE (obj) == Lisp_Vector) |
| 202 | return Qt; |
| 203 | return Qnil; |
| 204 | } |
| 205 | |
| 206 | DEFUN ("stringp", Fstringp, Sstringp, 1, 1, 0, "T if OBJECT is a string.") |
| 207 | (obj) |
| 208 | Lisp_Object obj; |
| 209 | { |
| 210 | if (XTYPE (obj) == Lisp_String) |
| 211 | return Qt; |
| 212 | return Qnil; |
| 213 | } |
| 214 | |
| 215 | DEFUN ("arrayp", Farrayp, Sarrayp, 1, 1, 0, "T if OBJECT is an array (string or vector).") |
| 216 | (obj) |
| 217 | Lisp_Object obj; |
| 218 | { |
| 219 | if (XTYPE (obj) == Lisp_Vector || XTYPE (obj) == Lisp_String) |
| 220 | return Qt; |
| 221 | return Qnil; |
| 222 | } |
| 223 | |
| 224 | DEFUN ("sequencep", Fsequencep, Ssequencep, 1, 1, 0, |
| 225 | "T if OBJECT is a sequence (list or array).") |
| 226 | (obj) |
| 227 | register Lisp_Object obj; |
| 228 | { |
| 229 | if (CONSP (obj) || NILP (obj) || |
| 230 | XTYPE (obj) == Lisp_Vector || XTYPE (obj) == Lisp_String) |
| 231 | return Qt; |
| 232 | return Qnil; |
| 233 | } |
| 234 | |
| 235 | DEFUN ("bufferp", Fbufferp, Sbufferp, 1, 1, 0, "T if OBJECT is an editor buffer.") |
| 236 | (obj) |
| 237 | Lisp_Object obj; |
| 238 | { |
| 239 | if (XTYPE (obj) == Lisp_Buffer) |
| 240 | return Qt; |
| 241 | return Qnil; |
| 242 | } |
| 243 | |
| 244 | DEFUN ("markerp", Fmarkerp, Smarkerp, 1, 1, 0, "T if OBJECT is a marker (editor pointer).") |
| 245 | (obj) |
| 246 | Lisp_Object obj; |
| 247 | { |
| 248 | if (XTYPE (obj) == Lisp_Marker) |
| 249 | return Qt; |
| 250 | return Qnil; |
| 251 | } |
| 252 | |
| 253 | DEFUN ("subrp", Fsubrp, Ssubrp, 1, 1, 0, "T if OBJECT is a built-in function.") |
| 254 | (obj) |
| 255 | Lisp_Object obj; |
| 256 | { |
| 257 | if (XTYPE (obj) == Lisp_Subr) |
| 258 | return Qt; |
| 259 | return Qnil; |
| 260 | } |
| 261 | |
| 262 | DEFUN ("byte-code-function-p", Fbyte_code_function_p, Sbyte_code_function_p, |
| 263 | 1, 1, 0, "T if OBJECT is a byte-compiled function object.") |
| 264 | (obj) |
| 265 | Lisp_Object obj; |
| 266 | { |
| 267 | if (XTYPE (obj) == Lisp_Compiled) |
| 268 | return Qt; |
| 269 | return Qnil; |
| 270 | } |
| 271 | |
| 272 | DEFUN ("char-or-string-p", Fchar_or_string_p, Schar_or_string_p, 1, 1, 0, "T if OBJECT is a character (a number) or a string.") |
| 273 | (obj) |
| 274 | register Lisp_Object obj; |
| 275 | { |
| 276 | if (XTYPE (obj) == Lisp_Int || XTYPE (obj) == Lisp_String) |
| 277 | return Qt; |
| 278 | return Qnil; |
| 279 | } |
| 280 | \f |
| 281 | DEFUN ("integerp", Fintegerp, Sintegerp, 1, 1, 0, "T if OBJECT is a number.") |
| 282 | (obj) |
| 283 | Lisp_Object obj; |
| 284 | { |
| 285 | if (XTYPE (obj) == Lisp_Int) |
| 286 | return Qt; |
| 287 | return Qnil; |
| 288 | } |
| 289 | |
| 290 | DEFUN ("integer-or-marker-p", Finteger_or_marker_p, Sinteger_or_marker_p, 1, 1, 0, |
| 291 | "T if OBJECT is an integer or a marker (editor pointer).") |
| 292 | (obj) |
| 293 | register Lisp_Object obj; |
| 294 | { |
| 295 | if (XTYPE (obj) == Lisp_Marker || XTYPE (obj) == Lisp_Int) |
| 296 | return Qt; |
| 297 | return Qnil; |
| 298 | } |
| 299 | |
| 300 | DEFUN ("natnump", Fnatnump, Snatnump, 1, 1, 0, "T if OBJECT is a nonnegative number.") |
| 301 | (obj) |
| 302 | Lisp_Object obj; |
| 303 | { |
| 304 | if (XTYPE (obj) == Lisp_Int && XINT (obj) >= 0) |
| 305 | return Qt; |
| 306 | return Qnil; |
| 307 | } |
| 308 | |
| 309 | DEFUN ("numberp", Fnumberp, Snumberp, 1, 1, 0, |
| 310 | "T if OBJECT is a number (floating point or integer).") |
| 311 | (obj) |
| 312 | Lisp_Object obj; |
| 313 | { |
| 314 | if (NUMBERP (obj)) |
| 315 | return Qt; |
| 316 | else |
| 317 | return Qnil; |
| 318 | } |
| 319 | |
| 320 | DEFUN ("number-or-marker-p", Fnumber_or_marker_p, |
| 321 | Snumber_or_marker_p, 1, 1, 0, |
| 322 | "T if OBJECT is a number or a marker.") |
| 323 | (obj) |
| 324 | Lisp_Object obj; |
| 325 | { |
| 326 | if (NUMBERP (obj) |
| 327 | || XTYPE (obj) == Lisp_Marker) |
| 328 | return Qt; |
| 329 | return Qnil; |
| 330 | } |
| 331 | |
| 332 | #ifdef LISP_FLOAT_TYPE |
| 333 | DEFUN ("floatp", Ffloatp, Sfloatp, 1, 1, 0, |
| 334 | "T if OBJECT is a floating point number.") |
| 335 | (obj) |
| 336 | Lisp_Object obj; |
| 337 | { |
| 338 | if (XTYPE (obj) == Lisp_Float) |
| 339 | return Qt; |
| 340 | return Qnil; |
| 341 | } |
| 342 | #endif /* LISP_FLOAT_TYPE */ |
| 343 | \f |
| 344 | /* Extract and set components of lists */ |
| 345 | |
| 346 | DEFUN ("car", Fcar, Scar, 1, 1, 0, |
| 347 | "Return the car of CONSCELL. If arg is nil, return nil.\n\ |
| 348 | Error if arg is not nil and not a cons cell. See also `car-safe'.") |
| 349 | (list) |
| 350 | register Lisp_Object list; |
| 351 | { |
| 352 | while (1) |
| 353 | { |
| 354 | if (XTYPE (list) == Lisp_Cons) |
| 355 | return XCONS (list)->car; |
| 356 | else if (EQ (list, Qnil)) |
| 357 | return Qnil; |
| 358 | else |
| 359 | list = wrong_type_argument (Qlistp, list); |
| 360 | } |
| 361 | } |
| 362 | |
| 363 | DEFUN ("car-safe", Fcar_safe, Scar_safe, 1, 1, 0, |
| 364 | "Return the car of OBJECT if it is a cons cell, or else nil.") |
| 365 | (object) |
| 366 | Lisp_Object object; |
| 367 | { |
| 368 | if (XTYPE (object) == Lisp_Cons) |
| 369 | return XCONS (object)->car; |
| 370 | else |
| 371 | return Qnil; |
| 372 | } |
| 373 | |
| 374 | DEFUN ("cdr", Fcdr, Scdr, 1, 1, 0, |
| 375 | "Return the cdr of CONSCELL. If arg is nil, return nil.\n\ |
| 376 | Error if arg is not nil and not a cons cell. See also `cdr-safe'.") |
| 377 | |
| 378 | (list) |
| 379 | register Lisp_Object list; |
| 380 | { |
| 381 | while (1) |
| 382 | { |
| 383 | if (XTYPE (list) == Lisp_Cons) |
| 384 | return XCONS (list)->cdr; |
| 385 | else if (EQ (list, Qnil)) |
| 386 | return Qnil; |
| 387 | else |
| 388 | list = wrong_type_argument (Qlistp, list); |
| 389 | } |
| 390 | } |
| 391 | |
| 392 | DEFUN ("cdr-safe", Fcdr_safe, Scdr_safe, 1, 1, 0, |
| 393 | "Return the cdr of OBJECT if it is a cons cell, or else nil.") |
| 394 | (object) |
| 395 | Lisp_Object object; |
| 396 | { |
| 397 | if (XTYPE (object) == Lisp_Cons) |
| 398 | return XCONS (object)->cdr; |
| 399 | else |
| 400 | return Qnil; |
| 401 | } |
| 402 | |
| 403 | DEFUN ("setcar", Fsetcar, Ssetcar, 2, 2, 0, |
| 404 | "Set the car of CONSCELL to be NEWCAR. Returns NEWCAR.") |
| 405 | (cell, newcar) |
| 406 | register Lisp_Object cell, newcar; |
| 407 | { |
| 408 | if (XTYPE (cell) != Lisp_Cons) |
| 409 | cell = wrong_type_argument (Qconsp, cell); |
| 410 | |
| 411 | CHECK_IMPURE (cell); |
| 412 | XCONS (cell)->car = newcar; |
| 413 | return newcar; |
| 414 | } |
| 415 | |
| 416 | DEFUN ("setcdr", Fsetcdr, Ssetcdr, 2, 2, 0, |
| 417 | "Set the cdr of CONSCELL to be NEWCDR. Returns NEWCDR.") |
| 418 | (cell, newcdr) |
| 419 | register Lisp_Object cell, newcdr; |
| 420 | { |
| 421 | if (XTYPE (cell) != Lisp_Cons) |
| 422 | cell = wrong_type_argument (Qconsp, cell); |
| 423 | |
| 424 | CHECK_IMPURE (cell); |
| 425 | XCONS (cell)->cdr = newcdr; |
| 426 | return newcdr; |
| 427 | } |
| 428 | \f |
| 429 | /* Extract and set components of symbols */ |
| 430 | |
| 431 | DEFUN ("boundp", Fboundp, Sboundp, 1, 1, 0, "T if SYMBOL's value is not void.") |
| 432 | (sym) |
| 433 | register Lisp_Object sym; |
| 434 | { |
| 435 | Lisp_Object valcontents; |
| 436 | CHECK_SYMBOL (sym, 0); |
| 437 | |
| 438 | valcontents = XSYMBOL (sym)->value; |
| 439 | |
| 440 | #ifdef SWITCH_ENUM_BUG |
| 441 | switch ((int) XTYPE (valcontents)) |
| 442 | #else |
| 443 | switch (XTYPE (valcontents)) |
| 444 | #endif |
| 445 | { |
| 446 | case Lisp_Buffer_Local_Value: |
| 447 | case Lisp_Some_Buffer_Local_Value: |
| 448 | valcontents = swap_in_symval_forwarding (sym, valcontents); |
| 449 | } |
| 450 | |
| 451 | return (XTYPE (valcontents) == Lisp_Void || EQ (valcontents, Qunbound) |
| 452 | ? Qnil : Qt); |
| 453 | } |
| 454 | |
| 455 | DEFUN ("fboundp", Ffboundp, Sfboundp, 1, 1, 0, "T if SYMBOL's function definition is not void.") |
| 456 | (sym) |
| 457 | register Lisp_Object sym; |
| 458 | { |
| 459 | CHECK_SYMBOL (sym, 0); |
| 460 | return (XTYPE (XSYMBOL (sym)->function) == Lisp_Void |
| 461 | || EQ (XSYMBOL (sym)->function, Qunbound)) |
| 462 | ? Qnil : Qt; |
| 463 | } |
| 464 | |
| 465 | DEFUN ("makunbound", Fmakunbound, Smakunbound, 1, 1, 0, "Make SYMBOL's value be void.") |
| 466 | (sym) |
| 467 | register Lisp_Object sym; |
| 468 | { |
| 469 | CHECK_SYMBOL (sym, 0); |
| 470 | if (NILP (sym) || EQ (sym, Qt)) |
| 471 | return Fsignal (Qsetting_constant, Fcons (sym, Qnil)); |
| 472 | Fset (sym, Qunbound); |
| 473 | return sym; |
| 474 | } |
| 475 | |
| 476 | DEFUN ("fmakunbound", Ffmakunbound, Sfmakunbound, 1, 1, 0, "Make SYMBOL's function definition be void.") |
| 477 | (sym) |
| 478 | register Lisp_Object sym; |
| 479 | { |
| 480 | CHECK_SYMBOL (sym, 0); |
| 481 | XSYMBOL (sym)->function = Qunbound; |
| 482 | return sym; |
| 483 | } |
| 484 | |
| 485 | DEFUN ("symbol-function", Fsymbol_function, Ssymbol_function, 1, 1, 0, |
| 486 | "Return SYMBOL's function definition. Error if that is void.") |
| 487 | (symbol) |
| 488 | register Lisp_Object symbol; |
| 489 | { |
| 490 | CHECK_SYMBOL (symbol, 0); |
| 491 | if (EQ (XSYMBOL (symbol)->function, Qunbound)) |
| 492 | return Fsignal (Qvoid_function, Fcons (symbol, Qnil)); |
| 493 | return XSYMBOL (symbol)->function; |
| 494 | } |
| 495 | |
| 496 | DEFUN ("symbol-plist", Fsymbol_plist, Ssymbol_plist, 1, 1, 0, "Return SYMBOL's property list.") |
| 497 | (sym) |
| 498 | register Lisp_Object sym; |
| 499 | { |
| 500 | CHECK_SYMBOL (sym, 0); |
| 501 | return XSYMBOL (sym)->plist; |
| 502 | } |
| 503 | |
| 504 | DEFUN ("symbol-name", Fsymbol_name, Ssymbol_name, 1, 1, 0, "Return SYMBOL's name, a string.") |
| 505 | (sym) |
| 506 | register Lisp_Object sym; |
| 507 | { |
| 508 | register Lisp_Object name; |
| 509 | |
| 510 | CHECK_SYMBOL (sym, 0); |
| 511 | XSET (name, Lisp_String, XSYMBOL (sym)->name); |
| 512 | return name; |
| 513 | } |
| 514 | |
| 515 | DEFUN ("fset", Ffset, Sfset, 2, 2, 0, |
| 516 | "Set SYMBOL's function definition to NEWVAL, and return NEWVAL.") |
| 517 | (sym, newdef) |
| 518 | register Lisp_Object sym, newdef; |
| 519 | { |
| 520 | CHECK_SYMBOL (sym, 0); |
| 521 | if (!NILP (Vautoload_queue) && !EQ (XSYMBOL (sym)->function, Qunbound)) |
| 522 | Vautoload_queue = Fcons (Fcons (sym, XSYMBOL (sym)->function), |
| 523 | Vautoload_queue); |
| 524 | XSYMBOL (sym)->function = newdef; |
| 525 | return newdef; |
| 526 | } |
| 527 | |
| 528 | DEFUN ("setplist", Fsetplist, Ssetplist, 2, 2, 0, |
| 529 | "Set SYMBOL's property list to NEWVAL, and return NEWVAL.") |
| 530 | (sym, newplist) |
| 531 | register Lisp_Object sym, newplist; |
| 532 | { |
| 533 | CHECK_SYMBOL (sym, 0); |
| 534 | XSYMBOL (sym)->plist = newplist; |
| 535 | return newplist; |
| 536 | } |
| 537 | |
| 538 | \f |
| 539 | /* Getting and setting values of symbols */ |
| 540 | |
| 541 | /* Given the raw contents of a symbol value cell, |
| 542 | return the Lisp value of the symbol. |
| 543 | This does not handle buffer-local variables; use |
| 544 | swap_in_symval_forwarding for that. */ |
| 545 | |
| 546 | Lisp_Object |
| 547 | do_symval_forwarding (valcontents) |
| 548 | register Lisp_Object valcontents; |
| 549 | { |
| 550 | register Lisp_Object val; |
| 551 | #ifdef SWITCH_ENUM_BUG |
| 552 | switch ((int) XTYPE (valcontents)) |
| 553 | #else |
| 554 | switch (XTYPE (valcontents)) |
| 555 | #endif |
| 556 | { |
| 557 | case Lisp_Intfwd: |
| 558 | XSET (val, Lisp_Int, *XINTPTR (valcontents)); |
| 559 | return val; |
| 560 | |
| 561 | case Lisp_Boolfwd: |
| 562 | if (*XINTPTR (valcontents)) |
| 563 | return Qt; |
| 564 | return Qnil; |
| 565 | |
| 566 | case Lisp_Objfwd: |
| 567 | return *XOBJFWD (valcontents); |
| 568 | |
| 569 | case Lisp_Buffer_Objfwd: |
| 570 | return *(Lisp_Object *)(XUINT (valcontents) + (char *)current_buffer); |
| 571 | } |
| 572 | return valcontents; |
| 573 | } |
| 574 | |
| 575 | /* Store NEWVAL into SYM, where VALCONTENTS is found in the value cell |
| 576 | of SYM. If SYM is buffer-local, VALCONTENTS should be the |
| 577 | buffer-independent contents of the value cell: forwarded just one |
| 578 | step past the buffer-localness. */ |
| 579 | |
| 580 | void |
| 581 | store_symval_forwarding (sym, valcontents, newval) |
| 582 | Lisp_Object sym; |
| 583 | register Lisp_Object valcontents, newval; |
| 584 | { |
| 585 | #ifdef SWITCH_ENUM_BUG |
| 586 | switch ((int) XTYPE (valcontents)) |
| 587 | #else |
| 588 | switch (XTYPE (valcontents)) |
| 589 | #endif |
| 590 | { |
| 591 | case Lisp_Intfwd: |
| 592 | CHECK_NUMBER (newval, 1); |
| 593 | *XINTPTR (valcontents) = XINT (newval); |
| 594 | break; |
| 595 | |
| 596 | case Lisp_Boolfwd: |
| 597 | *XINTPTR (valcontents) = NILP(newval) ? 0 : 1; |
| 598 | break; |
| 599 | |
| 600 | case Lisp_Objfwd: |
| 601 | *XOBJFWD (valcontents) = newval; |
| 602 | break; |
| 603 | |
| 604 | case Lisp_Buffer_Objfwd: |
| 605 | { |
| 606 | unsigned int offset = XUINT (valcontents); |
| 607 | Lisp_Object type = |
| 608 | *(Lisp_Object *)(offset + (char *)&buffer_local_types); |
| 609 | |
| 610 | if (! NILP (type) && ! NILP (newval) |
| 611 | && XTYPE (newval) != XINT (type)) |
| 612 | buffer_slot_type_mismatch (valcontents, newval); |
| 613 | |
| 614 | *(Lisp_Object *)(XUINT (valcontents) + (char *)current_buffer) |
| 615 | = newval; |
| 616 | break; |
| 617 | } |
| 618 | |
| 619 | default: |
| 620 | valcontents = XSYMBOL (sym)->value; |
| 621 | if (XTYPE (valcontents) == Lisp_Buffer_Local_Value |
| 622 | || XTYPE (valcontents) == Lisp_Some_Buffer_Local_Value) |
| 623 | XCONS (XSYMBOL (sym)->value)->car = newval; |
| 624 | else |
| 625 | XSYMBOL (sym)->value = newval; |
| 626 | } |
| 627 | } |
| 628 | |
| 629 | /* Set up the buffer-local symbol SYM for validity in the current |
| 630 | buffer. VALCONTENTS is the contents of its value cell. |
| 631 | Return the value forwarded one step past the buffer-local indicator. */ |
| 632 | |
| 633 | static Lisp_Object |
| 634 | swap_in_symval_forwarding (sym, valcontents) |
| 635 | Lisp_Object sym, valcontents; |
| 636 | { |
| 637 | /* valcontents is a list |
| 638 | (REALVALUE BUFFER CURRENT-ALIST-ELEMENT . DEFAULT-VALUE)). |
| 639 | |
| 640 | CURRENT-ALIST-ELEMENT is a pointer to an element of BUFFER's |
| 641 | local_var_alist, that being the element whose car is this |
| 642 | variable. Or it can be a pointer to the |
| 643 | (CURRENT-ALIST-ELEMENT . DEFAULT-VALUE), if BUFFER does not have |
| 644 | an element in its alist for this variable. |
| 645 | |
| 646 | If the current buffer is not BUFFER, we store the current |
| 647 | REALVALUE value into CURRENT-ALIST-ELEMENT, then find the |
| 648 | appropriate alist element for the buffer now current and set up |
| 649 | CURRENT-ALIST-ELEMENT. Then we set REALVALUE out of that |
| 650 | element, and store into BUFFER. |
| 651 | |
| 652 | Note that REALVALUE can be a forwarding pointer. */ |
| 653 | |
| 654 | register Lisp_Object tem1; |
| 655 | tem1 = XCONS (XCONS (valcontents)->cdr)->car; |
| 656 | |
| 657 | if (NILP (tem1) || current_buffer != XBUFFER (tem1)) |
| 658 | { |
| 659 | tem1 = XCONS (XCONS (XCONS (valcontents)->cdr)->cdr)->car; |
| 660 | Fsetcdr (tem1, do_symval_forwarding (XCONS (valcontents)->car)); |
| 661 | tem1 = assq_no_quit (sym, current_buffer->local_var_alist); |
| 662 | if (NILP (tem1)) |
| 663 | tem1 = XCONS (XCONS (valcontents)->cdr)->cdr; |
| 664 | XCONS (XCONS (XCONS (valcontents)->cdr)->cdr)->car = tem1; |
| 665 | XSET (XCONS (XCONS (valcontents)->cdr)->car, Lisp_Buffer, current_buffer); |
| 666 | store_symval_forwarding (sym, XCONS (valcontents)->car, Fcdr (tem1)); |
| 667 | } |
| 668 | return XCONS (valcontents)->car; |
| 669 | } |
| 670 | \f |
| 671 | /* Find the value of a symbol, returning Qunbound if it's not bound. |
| 672 | This is helpful for code which just wants to get a variable's value |
| 673 | if it has one, without signalling an error. |
| 674 | Note that it must not be possible to quit |
| 675 | within this function. Great care is required for this. */ |
| 676 | |
| 677 | Lisp_Object |
| 678 | find_symbol_value (sym) |
| 679 | Lisp_Object sym; |
| 680 | { |
| 681 | register Lisp_Object valcontents, tem1; |
| 682 | register Lisp_Object val; |
| 683 | CHECK_SYMBOL (sym, 0); |
| 684 | valcontents = XSYMBOL (sym)->value; |
| 685 | |
| 686 | retry: |
| 687 | #ifdef SWITCH_ENUM_BUG |
| 688 | switch ((int) XTYPE (valcontents)) |
| 689 | #else |
| 690 | switch (XTYPE (valcontents)) |
| 691 | #endif |
| 692 | { |
| 693 | case Lisp_Buffer_Local_Value: |
| 694 | case Lisp_Some_Buffer_Local_Value: |
| 695 | valcontents = swap_in_symval_forwarding (sym, valcontents); |
| 696 | goto retry; |
| 697 | |
| 698 | case Lisp_Intfwd: |
| 699 | XSET (val, Lisp_Int, *XINTPTR (valcontents)); |
| 700 | return val; |
| 701 | |
| 702 | case Lisp_Boolfwd: |
| 703 | if (*XINTPTR (valcontents)) |
| 704 | return Qt; |
| 705 | return Qnil; |
| 706 | |
| 707 | case Lisp_Objfwd: |
| 708 | return *XOBJFWD (valcontents); |
| 709 | |
| 710 | case Lisp_Buffer_Objfwd: |
| 711 | return *(Lisp_Object *)(XUINT (valcontents) + (char *)current_buffer); |
| 712 | |
| 713 | case Lisp_Void: |
| 714 | return Qunbound; |
| 715 | } |
| 716 | |
| 717 | return valcontents; |
| 718 | } |
| 719 | |
| 720 | DEFUN ("symbol-value", Fsymbol_value, Ssymbol_value, 1, 1, 0, |
| 721 | "Return SYMBOL's value. Error if that is void.") |
| 722 | (sym) |
| 723 | Lisp_Object sym; |
| 724 | { |
| 725 | Lisp_Object val = find_symbol_value (sym); |
| 726 | |
| 727 | if (EQ (val, Qunbound)) |
| 728 | return Fsignal (Qvoid_variable, Fcons (sym, Qnil)); |
| 729 | else |
| 730 | return val; |
| 731 | } |
| 732 | |
| 733 | DEFUN ("set", Fset, Sset, 2, 2, 0, |
| 734 | "Set SYMBOL's value to NEWVAL, and return NEWVAL.") |
| 735 | (sym, newval) |
| 736 | register Lisp_Object sym, newval; |
| 737 | { |
| 738 | int voide = (XTYPE (newval) == Lisp_Void || EQ (newval, Qunbound)); |
| 739 | |
| 740 | #ifndef RTPC_REGISTER_BUG |
| 741 | register Lisp_Object valcontents, tem1, current_alist_element; |
| 742 | #else /* RTPC_REGISTER_BUG */ |
| 743 | register Lisp_Object tem1; |
| 744 | Lisp_Object valcontents, current_alist_element; |
| 745 | #endif /* RTPC_REGISTER_BUG */ |
| 746 | |
| 747 | CHECK_SYMBOL (sym, 0); |
| 748 | if (NILP (sym) || EQ (sym, Qt)) |
| 749 | return Fsignal (Qsetting_constant, Fcons (sym, Qnil)); |
| 750 | valcontents = XSYMBOL (sym)->value; |
| 751 | |
| 752 | if (XTYPE (valcontents) == Lisp_Buffer_Objfwd) |
| 753 | { |
| 754 | register int idx = XUINT (valcontents); |
| 755 | register int mask = *(int *)(idx + (char *) &buffer_local_flags); |
| 756 | if (mask > 0) |
| 757 | current_buffer->local_var_flags |= mask; |
| 758 | } |
| 759 | |
| 760 | else if (XTYPE (valcontents) == Lisp_Buffer_Local_Value |
| 761 | || XTYPE (valcontents) == Lisp_Some_Buffer_Local_Value) |
| 762 | { |
| 763 | /* valcontents is actually a pointer to a cons heading something like: |
| 764 | (REALVALUE BUFFER CURRENT-ALIST-ELEMENT . DEFAULT-VALUE). |
| 765 | |
| 766 | BUFFER is the last buffer for which this symbol's value was |
| 767 | made up to date. |
| 768 | |
| 769 | CURRENT-ALIST-ELEMENT is a pointer to an element of BUFFER's |
| 770 | local_var_alist, that being the element whose car is this |
| 771 | variable. Or it can be a pointer to the |
| 772 | (CURRENT-ALIST-ELEMENT . DEFAULT-VALUE), if BUFFER does not |
| 773 | have an element in its alist for this variable (that is, if |
| 774 | BUFFER sees the default value of this variable). |
| 775 | |
| 776 | If we want to examine or set the value and BUFFER is current, |
| 777 | we just examine or set REALVALUE. If BUFFER is not current, we |
| 778 | store the current REALVALUE value into CURRENT-ALIST-ELEMENT, |
| 779 | then find the appropriate alist element for the buffer now |
| 780 | current and set up CURRENT-ALIST-ELEMENT. Then we set |
| 781 | REALVALUE out of that element, and store into BUFFER. |
| 782 | |
| 783 | If we are setting the variable and the current buffer does |
| 784 | not have an alist entry for this variable, an alist entry is |
| 785 | created. |
| 786 | |
| 787 | Note that REALVALUE can be a forwarding pointer. Each time |
| 788 | it is examined or set, forwarding must be done. */ |
| 789 | |
| 790 | /* What value are we caching right now? */ |
| 791 | current_alist_element = |
| 792 | XCONS (XCONS (XCONS (valcontents)->cdr)->cdr)->car; |
| 793 | |
| 794 | /* If the current buffer is not the buffer whose binding is |
| 795 | currently cached, or if it's a Lisp_Buffer_Local_Value and |
| 796 | we're looking at the default value, the cache is invalid; we |
| 797 | need to write it out, and find the new CURRENT-ALIST-ELEMENT. */ |
| 798 | if ((current_buffer |
| 799 | != XBUFFER (XCONS (XCONS (valcontents)->cdr)->car)) |
| 800 | || (XTYPE (valcontents) == Lisp_Buffer_Local_Value |
| 801 | && EQ (XCONS (current_alist_element)->car, |
| 802 | current_alist_element))) |
| 803 | { |
| 804 | /* Write out the cached value for the old buffer; copy it |
| 805 | back to its alist element. This works if the current |
| 806 | buffer only sees the default value, too. */ |
| 807 | Fsetcdr (current_alist_element, |
| 808 | do_symval_forwarding (XCONS (valcontents)->car)); |
| 809 | |
| 810 | /* Find the new value for CURRENT-ALIST-ELEMENT. */ |
| 811 | tem1 = Fassq (sym, current_buffer->local_var_alist); |
| 812 | if (NILP (tem1)) |
| 813 | { |
| 814 | /* This buffer still sees the default value. */ |
| 815 | |
| 816 | /* If the variable is a Lisp_Some_Buffer_Local_Value, |
| 817 | make CURRENT-ALIST-ELEMENT point to itself, |
| 818 | indicating that we're seeing the default value. */ |
| 819 | if (XTYPE (valcontents) == Lisp_Some_Buffer_Local_Value) |
| 820 | tem1 = XCONS (XCONS (valcontents)->cdr)->cdr; |
| 821 | |
| 822 | /* If it's a Lisp_Buffer_Local_Value, give this buffer a |
| 823 | new assoc for a local value and set |
| 824 | CURRENT-ALIST-ELEMENT to point to that. */ |
| 825 | else |
| 826 | { |
| 827 | tem1 = Fcons (sym, Fcdr (current_alist_element)); |
| 828 | current_buffer->local_var_alist = |
| 829 | Fcons (tem1, current_buffer->local_var_alist); |
| 830 | } |
| 831 | } |
| 832 | /* Cache the new buffer's assoc in CURRENT-ALIST-ELEMENT. */ |
| 833 | XCONS (XCONS (XCONS (valcontents)->cdr)->cdr)->car = tem1; |
| 834 | |
| 835 | /* Set BUFFER, now that CURRENT-ALIST-ELEMENT is accurate. */ |
| 836 | XSET (XCONS (XCONS (valcontents)->cdr)->car, |
| 837 | Lisp_Buffer, current_buffer); |
| 838 | } |
| 839 | valcontents = XCONS (valcontents)->car; |
| 840 | } |
| 841 | |
| 842 | /* If storing void (making the symbol void), forward only through |
| 843 | buffer-local indicator, not through Lisp_Objfwd, etc. */ |
| 844 | if (voide) |
| 845 | store_symval_forwarding (sym, Qnil, newval); |
| 846 | else |
| 847 | store_symval_forwarding (sym, valcontents, newval); |
| 848 | |
| 849 | return newval; |
| 850 | } |
| 851 | \f |
| 852 | /* Access or set a buffer-local symbol's default value. */ |
| 853 | |
| 854 | /* Return the default value of SYM, but don't check for voidness. |
| 855 | Return Qunbound or a Lisp_Void object if it is void. */ |
| 856 | |
| 857 | Lisp_Object |
| 858 | default_value (sym) |
| 859 | Lisp_Object sym; |
| 860 | { |
| 861 | register Lisp_Object valcontents; |
| 862 | |
| 863 | CHECK_SYMBOL (sym, 0); |
| 864 | valcontents = XSYMBOL (sym)->value; |
| 865 | |
| 866 | /* For a built-in buffer-local variable, get the default value |
| 867 | rather than letting do_symval_forwarding get the current value. */ |
| 868 | if (XTYPE (valcontents) == Lisp_Buffer_Objfwd) |
| 869 | { |
| 870 | register int idx = XUINT (valcontents); |
| 871 | |
| 872 | if (*(int *) (idx + (char *) &buffer_local_flags) != 0) |
| 873 | return *(Lisp_Object *)(idx + (char *) &buffer_defaults); |
| 874 | } |
| 875 | |
| 876 | /* Handle user-created local variables. */ |
| 877 | if (XTYPE (valcontents) == Lisp_Buffer_Local_Value |
| 878 | || XTYPE (valcontents) == Lisp_Some_Buffer_Local_Value) |
| 879 | { |
| 880 | /* If var is set up for a buffer that lacks a local value for it, |
| 881 | the current value is nominally the default value. |
| 882 | But the current value slot may be more up to date, since |
| 883 | ordinary setq stores just that slot. So use that. */ |
| 884 | Lisp_Object current_alist_element, alist_element_car; |
| 885 | current_alist_element |
| 886 | = XCONS (XCONS (XCONS (valcontents)->cdr)->cdr)->car; |
| 887 | alist_element_car = XCONS (current_alist_element)->car; |
| 888 | if (EQ (alist_element_car, current_alist_element)) |
| 889 | return do_symval_forwarding (XCONS (valcontents)->car); |
| 890 | else |
| 891 | return XCONS (XCONS (XCONS (valcontents)->cdr)->cdr)->cdr; |
| 892 | } |
| 893 | /* For other variables, get the current value. */ |
| 894 | return do_symval_forwarding (valcontents); |
| 895 | } |
| 896 | |
| 897 | DEFUN ("default-boundp", Fdefault_boundp, Sdefault_boundp, 1, 1, 0, |
| 898 | "Return T if SYMBOL has a non-void default value.\n\ |
| 899 | This is the value that is seen in buffers that do not have their own values\n\ |
| 900 | for this variable.") |
| 901 | (sym) |
| 902 | Lisp_Object sym; |
| 903 | { |
| 904 | register Lisp_Object value; |
| 905 | |
| 906 | value = default_value (sym); |
| 907 | return (XTYPE (value) == Lisp_Void || EQ (value, Qunbound) |
| 908 | ? Qnil : Qt); |
| 909 | } |
| 910 | |
| 911 | DEFUN ("default-value", Fdefault_value, Sdefault_value, 1, 1, 0, |
| 912 | "Return SYMBOL's default value.\n\ |
| 913 | This is the value that is seen in buffers that do not have their own values\n\ |
| 914 | for this variable. The default value is meaningful for variables with\n\ |
| 915 | local bindings in certain buffers.") |
| 916 | (sym) |
| 917 | Lisp_Object sym; |
| 918 | { |
| 919 | register Lisp_Object value; |
| 920 | |
| 921 | value = default_value (sym); |
| 922 | if (XTYPE (value) == Lisp_Void || EQ (value, Qunbound)) |
| 923 | return Fsignal (Qvoid_variable, Fcons (sym, Qnil)); |
| 924 | return value; |
| 925 | } |
| 926 | |
| 927 | DEFUN ("set-default", Fset_default, Sset_default, 2, 2, 0, |
| 928 | "Set SYMBOL's default value to VAL. SYMBOL and VAL are evaluated.\n\ |
| 929 | The default value is seen in buffers that do not have their own values\n\ |
| 930 | for this variable.") |
| 931 | (sym, value) |
| 932 | Lisp_Object sym, value; |
| 933 | { |
| 934 | register Lisp_Object valcontents, current_alist_element, alist_element_buffer; |
| 935 | |
| 936 | CHECK_SYMBOL (sym, 0); |
| 937 | valcontents = XSYMBOL (sym)->value; |
| 938 | |
| 939 | /* Handle variables like case-fold-search that have special slots |
| 940 | in the buffer. Make them work apparently like Lisp_Buffer_Local_Value |
| 941 | variables. */ |
| 942 | if (XTYPE (valcontents) == Lisp_Buffer_Objfwd) |
| 943 | { |
| 944 | register int idx = XUINT (valcontents); |
| 945 | #ifndef RTPC_REGISTER_BUG |
| 946 | register struct buffer *b; |
| 947 | #else |
| 948 | struct buffer *b; |
| 949 | #endif |
| 950 | register int mask = *(int *) (idx + (char *) &buffer_local_flags); |
| 951 | |
| 952 | if (mask > 0) |
| 953 | { |
| 954 | *(Lisp_Object *)(idx + (char *) &buffer_defaults) = value; |
| 955 | for (b = all_buffers; b; b = b->next) |
| 956 | if (!(b->local_var_flags & mask)) |
| 957 | *(Lisp_Object *)(idx + (char *) b) = value; |
| 958 | } |
| 959 | return value; |
| 960 | } |
| 961 | |
| 962 | if (XTYPE (valcontents) != Lisp_Buffer_Local_Value && |
| 963 | XTYPE (valcontents) != Lisp_Some_Buffer_Local_Value) |
| 964 | return Fset (sym, value); |
| 965 | |
| 966 | /* Store new value into the DEFAULT-VALUE slot */ |
| 967 | XCONS (XCONS (XCONS (valcontents)->cdr)->cdr)->cdr = value; |
| 968 | |
| 969 | /* If that slot is current, we must set the REALVALUE slot too */ |
| 970 | current_alist_element = XCONS (XCONS (XCONS (valcontents)->cdr)->cdr)->car; |
| 971 | alist_element_buffer = Fcar (current_alist_element); |
| 972 | if (EQ (alist_element_buffer, current_alist_element)) |
| 973 | store_symval_forwarding (sym, XCONS (valcontents)->car, value); |
| 974 | |
| 975 | return value; |
| 976 | } |
| 977 | |
| 978 | DEFUN ("setq-default", Fsetq_default, Ssetq_default, 2, UNEVALLED, 0, |
| 979 | "\ |
| 980 | (setq-default SYM VAL SYM VAL ...): set each SYM's default value to its VAL.\n\ |
| 981 | VAL is evaluated; SYM is not. The default value is seen in buffers that do\n\ |
| 982 | not have their own values for this variable.") |
| 983 | (args) |
| 984 | Lisp_Object args; |
| 985 | { |
| 986 | register Lisp_Object args_left; |
| 987 | register Lisp_Object val, sym; |
| 988 | struct gcpro gcpro1; |
| 989 | |
| 990 | if (NILP (args)) |
| 991 | return Qnil; |
| 992 | |
| 993 | args_left = args; |
| 994 | GCPRO1 (args); |
| 995 | |
| 996 | do |
| 997 | { |
| 998 | val = Feval (Fcar (Fcdr (args_left))); |
| 999 | sym = Fcar (args_left); |
| 1000 | Fset_default (sym, val); |
| 1001 | args_left = Fcdr (Fcdr (args_left)); |
| 1002 | } |
| 1003 | while (!NILP (args_left)); |
| 1004 | |
| 1005 | UNGCPRO; |
| 1006 | return val; |
| 1007 | } |
| 1008 | \f |
| 1009 | /* Lisp functions for creating and removing buffer-local variables. */ |
| 1010 | |
| 1011 | DEFUN ("make-variable-buffer-local", Fmake_variable_buffer_local, Smake_variable_buffer_local, |
| 1012 | 1, 1, "vMake Variable Buffer Local: ", |
| 1013 | "Make VARIABLE have a separate value for each buffer.\n\ |
| 1014 | At any time, the value for the current buffer is in effect.\n\ |
| 1015 | There is also a default value which is seen in any buffer which has not yet\n\ |
| 1016 | set its own value.\n\ |
| 1017 | Using `set' or `setq' to set the variable causes it to have a separate value\n\ |
| 1018 | for the current buffer if it was previously using the default value.\n\ |
| 1019 | The function `default-value' gets the default value and `set-default' sets it.") |
| 1020 | (sym) |
| 1021 | register Lisp_Object sym; |
| 1022 | { |
| 1023 | register Lisp_Object tem, valcontents; |
| 1024 | |
| 1025 | CHECK_SYMBOL (sym, 0); |
| 1026 | |
| 1027 | if (EQ (sym, Qnil) || EQ (sym, Qt)) |
| 1028 | error ("Symbol %s may not be buffer-local", XSYMBOL (sym)->name->data); |
| 1029 | |
| 1030 | valcontents = XSYMBOL (sym)->value; |
| 1031 | if ((XTYPE (valcontents) == Lisp_Buffer_Local_Value) || |
| 1032 | (XTYPE (valcontents) == Lisp_Buffer_Objfwd)) |
| 1033 | return sym; |
| 1034 | if (XTYPE (valcontents) == Lisp_Some_Buffer_Local_Value) |
| 1035 | { |
| 1036 | XSETTYPE (XSYMBOL (sym)->value, Lisp_Buffer_Local_Value); |
| 1037 | return sym; |
| 1038 | } |
| 1039 | if (EQ (valcontents, Qunbound)) |
| 1040 | XSYMBOL (sym)->value = Qnil; |
| 1041 | tem = Fcons (Qnil, Fsymbol_value (sym)); |
| 1042 | XCONS (tem)->car = tem; |
| 1043 | XSYMBOL (sym)->value = Fcons (XSYMBOL (sym)->value, Fcons (Fcurrent_buffer (), tem)); |
| 1044 | XSETTYPE (XSYMBOL (sym)->value, Lisp_Buffer_Local_Value); |
| 1045 | return sym; |
| 1046 | } |
| 1047 | |
| 1048 | DEFUN ("make-local-variable", Fmake_local_variable, Smake_local_variable, |
| 1049 | 1, 1, "vMake Local Variable: ", |
| 1050 | "Make VARIABLE have a separate value in the current buffer.\n\ |
| 1051 | Other buffers will continue to share a common default value.\n\ |
| 1052 | See also `make-variable-buffer-local'.\n\n\ |
| 1053 | If the variable is already arranged to become local when set,\n\ |
| 1054 | this function causes a local value to exist for this buffer,\n\ |
| 1055 | just as if the variable were set.") |
| 1056 | (sym) |
| 1057 | register Lisp_Object sym; |
| 1058 | { |
| 1059 | register Lisp_Object tem, valcontents; |
| 1060 | |
| 1061 | CHECK_SYMBOL (sym, 0); |
| 1062 | |
| 1063 | if (EQ (sym, Qnil) || EQ (sym, Qt)) |
| 1064 | error ("Symbol %s may not be buffer-local", XSYMBOL (sym)->name->data); |
| 1065 | |
| 1066 | valcontents = XSYMBOL (sym)->value; |
| 1067 | if (XTYPE (valcontents) == Lisp_Buffer_Local_Value |
| 1068 | || XTYPE (valcontents) == Lisp_Buffer_Objfwd) |
| 1069 | { |
| 1070 | tem = Fboundp (sym); |
| 1071 | |
| 1072 | /* Make sure the symbol has a local value in this particular buffer, |
| 1073 | by setting it to the same value it already has. */ |
| 1074 | Fset (sym, (EQ (tem, Qt) ? Fsymbol_value (sym) : Qunbound)); |
| 1075 | return sym; |
| 1076 | } |
| 1077 | /* Make sure sym is set up to hold per-buffer values */ |
| 1078 | if (XTYPE (valcontents) != Lisp_Some_Buffer_Local_Value) |
| 1079 | { |
| 1080 | if (EQ (valcontents, Qunbound)) |
| 1081 | XSYMBOL (sym)->value = Qnil; |
| 1082 | tem = Fcons (Qnil, do_symval_forwarding (valcontents)); |
| 1083 | XCONS (tem)->car = tem; |
| 1084 | XSYMBOL (sym)->value = Fcons (XSYMBOL (sym)->value, Fcons (Qnil, tem)); |
| 1085 | XSETTYPE (XSYMBOL (sym)->value, Lisp_Some_Buffer_Local_Value); |
| 1086 | } |
| 1087 | /* Make sure this buffer has its own value of sym */ |
| 1088 | tem = Fassq (sym, current_buffer->local_var_alist); |
| 1089 | if (NILP (tem)) |
| 1090 | { |
| 1091 | current_buffer->local_var_alist |
| 1092 | = Fcons (Fcons (sym, XCONS (XCONS (XCONS (XSYMBOL (sym)->value)->cdr)->cdr)->cdr), |
| 1093 | current_buffer->local_var_alist); |
| 1094 | |
| 1095 | /* Make sure symbol does not think it is set up for this buffer; |
| 1096 | force it to look once again for this buffer's value */ |
| 1097 | { |
| 1098 | /* This local variable avoids "expression too complex" on IBM RT. */ |
| 1099 | Lisp_Object xs; |
| 1100 | |
| 1101 | xs = XSYMBOL (sym)->value; |
| 1102 | if (current_buffer == XBUFFER (XCONS (XCONS (xs)->cdr)->car)) |
| 1103 | XCONS (XCONS (XSYMBOL (sym)->value)->cdr)->car = Qnil; |
| 1104 | } |
| 1105 | } |
| 1106 | |
| 1107 | /* If the symbol forwards into a C variable, then swap in the |
| 1108 | variable for this buffer immediately. If C code modifies the |
| 1109 | variable before we swap in, then that new value will clobber the |
| 1110 | default value the next time we swap. */ |
| 1111 | valcontents = XCONS (XSYMBOL (sym)->value)->car; |
| 1112 | if (XTYPE (valcontents) == Lisp_Intfwd |
| 1113 | || XTYPE (valcontents) == Lisp_Boolfwd |
| 1114 | || XTYPE (valcontents) == Lisp_Objfwd) |
| 1115 | swap_in_symval_forwarding (sym, XSYMBOL (sym)->value); |
| 1116 | |
| 1117 | return sym; |
| 1118 | } |
| 1119 | |
| 1120 | DEFUN ("kill-local-variable", Fkill_local_variable, Skill_local_variable, |
| 1121 | 1, 1, "vKill Local Variable: ", |
| 1122 | "Make VARIABLE no longer have a separate value in the current buffer.\n\ |
| 1123 | From now on the default value will apply in this buffer.") |
| 1124 | (sym) |
| 1125 | register Lisp_Object sym; |
| 1126 | { |
| 1127 | register Lisp_Object tem, valcontents; |
| 1128 | |
| 1129 | CHECK_SYMBOL (sym, 0); |
| 1130 | |
| 1131 | valcontents = XSYMBOL (sym)->value; |
| 1132 | |
| 1133 | if (XTYPE (valcontents) == Lisp_Buffer_Objfwd) |
| 1134 | { |
| 1135 | register int idx = XUINT (valcontents); |
| 1136 | register int mask = *(int *) (idx + (char *) &buffer_local_flags); |
| 1137 | |
| 1138 | if (mask > 0) |
| 1139 | { |
| 1140 | *(Lisp_Object *)(idx + (char *) current_buffer) |
| 1141 | = *(Lisp_Object *)(idx + (char *) &buffer_defaults); |
| 1142 | current_buffer->local_var_flags &= ~mask; |
| 1143 | } |
| 1144 | return sym; |
| 1145 | } |
| 1146 | |
| 1147 | if (XTYPE (valcontents) != Lisp_Buffer_Local_Value && |
| 1148 | XTYPE (valcontents) != Lisp_Some_Buffer_Local_Value) |
| 1149 | return sym; |
| 1150 | |
| 1151 | /* Get rid of this buffer's alist element, if any */ |
| 1152 | |
| 1153 | tem = Fassq (sym, current_buffer->local_var_alist); |
| 1154 | if (!NILP (tem)) |
| 1155 | current_buffer->local_var_alist = Fdelq (tem, current_buffer->local_var_alist); |
| 1156 | |
| 1157 | /* Make sure symbol does not think it is set up for this buffer; |
| 1158 | force it to look once again for this buffer's value */ |
| 1159 | { |
| 1160 | Lisp_Object sv; |
| 1161 | sv = XSYMBOL (sym)->value; |
| 1162 | if (current_buffer == XBUFFER (XCONS (XCONS (sv)->cdr)->car)) |
| 1163 | XCONS (XCONS (sv)->cdr)->car = Qnil; |
| 1164 | } |
| 1165 | |
| 1166 | return sym; |
| 1167 | } |
| 1168 | \f |
| 1169 | /* Find the function at the end of a chain of symbol function indirections. */ |
| 1170 | |
| 1171 | /* If OBJECT is a symbol, find the end of its function chain and |
| 1172 | return the value found there. If OBJECT is not a symbol, just |
| 1173 | return it. If there is a cycle in the function chain, signal a |
| 1174 | cyclic-function-indirection error. |
| 1175 | |
| 1176 | This is like Findirect_function, except that it doesn't signal an |
| 1177 | error if the chain ends up unbound. */ |
| 1178 | Lisp_Object |
| 1179 | indirect_function (object) |
| 1180 | register Lisp_Object object; |
| 1181 | { |
| 1182 | Lisp_Object tortise, hare; |
| 1183 | |
| 1184 | hare = tortise = object; |
| 1185 | |
| 1186 | for (;;) |
| 1187 | { |
| 1188 | if (XTYPE (hare) != Lisp_Symbol || EQ (hare, Qunbound)) |
| 1189 | break; |
| 1190 | hare = XSYMBOL (hare)->function; |
| 1191 | if (XTYPE (hare) != Lisp_Symbol || EQ (hare, Qunbound)) |
| 1192 | break; |
| 1193 | hare = XSYMBOL (hare)->function; |
| 1194 | |
| 1195 | tortise = XSYMBOL (tortise)->function; |
| 1196 | |
| 1197 | if (EQ (hare, tortise)) |
| 1198 | Fsignal (Qcyclic_function_indirection, Fcons (object, Qnil)); |
| 1199 | } |
| 1200 | |
| 1201 | return hare; |
| 1202 | } |
| 1203 | |
| 1204 | DEFUN ("indirect-function", Findirect_function, Sindirect_function, 1, 1, 0, |
| 1205 | "Return the function at the end of OBJECT's function chain.\n\ |
| 1206 | If OBJECT is a symbol, follow all function indirections and return the final\n\ |
| 1207 | function binding.\n\ |
| 1208 | If OBJECT is not a symbol, just return it.\n\ |
| 1209 | Signal a void-function error if the final symbol is unbound.\n\ |
| 1210 | Signal a cyclic-function-indirection error if there is a loop in the\n\ |
| 1211 | function chain of symbols.") |
| 1212 | (object) |
| 1213 | register Lisp_Object object; |
| 1214 | { |
| 1215 | Lisp_Object result; |
| 1216 | |
| 1217 | result = indirect_function (object); |
| 1218 | |
| 1219 | if (EQ (result, Qunbound)) |
| 1220 | return Fsignal (Qvoid_function, Fcons (object, Qnil)); |
| 1221 | return result; |
| 1222 | } |
| 1223 | \f |
| 1224 | /* Extract and set vector and string elements */ |
| 1225 | |
| 1226 | DEFUN ("aref", Faref, Saref, 2, 2, 0, |
| 1227 | "Return the element of ARRAY at index INDEX.\n\ |
| 1228 | ARRAY may be a vector or a string, or a byte-code object. INDEX starts at 0.") |
| 1229 | (array, idx) |
| 1230 | register Lisp_Object array; |
| 1231 | Lisp_Object idx; |
| 1232 | { |
| 1233 | register int idxval; |
| 1234 | |
| 1235 | CHECK_NUMBER (idx, 1); |
| 1236 | idxval = XINT (idx); |
| 1237 | if (XTYPE (array) != Lisp_Vector && XTYPE (array) != Lisp_String |
| 1238 | && XTYPE (array) != Lisp_Compiled) |
| 1239 | array = wrong_type_argument (Qarrayp, array); |
| 1240 | if (idxval < 0 || idxval >= XVECTOR (array)->size) |
| 1241 | args_out_of_range (array, idx); |
| 1242 | if (XTYPE (array) == Lisp_String) |
| 1243 | { |
| 1244 | Lisp_Object val; |
| 1245 | XFASTINT (val) = (unsigned char) XSTRING (array)->data[idxval]; |
| 1246 | return val; |
| 1247 | } |
| 1248 | else |
| 1249 | return XVECTOR (array)->contents[idxval]; |
| 1250 | } |
| 1251 | |
| 1252 | DEFUN ("aset", Faset, Saset, 3, 3, 0, |
| 1253 | "Store into the element of ARRAY at index INDEX the value NEWVAL.\n\ |
| 1254 | ARRAY may be a vector or a string. INDEX starts at 0.") |
| 1255 | (array, idx, newelt) |
| 1256 | register Lisp_Object array; |
| 1257 | Lisp_Object idx, newelt; |
| 1258 | { |
| 1259 | register int idxval; |
| 1260 | |
| 1261 | CHECK_NUMBER (idx, 1); |
| 1262 | idxval = XINT (idx); |
| 1263 | if (XTYPE (array) != Lisp_Vector && XTYPE (array) != Lisp_String) |
| 1264 | array = wrong_type_argument (Qarrayp, array); |
| 1265 | if (idxval < 0 || idxval >= XVECTOR (array)->size) |
| 1266 | args_out_of_range (array, idx); |
| 1267 | CHECK_IMPURE (array); |
| 1268 | |
| 1269 | if (XTYPE (array) == Lisp_Vector) |
| 1270 | XVECTOR (array)->contents[idxval] = newelt; |
| 1271 | else |
| 1272 | { |
| 1273 | CHECK_NUMBER (newelt, 2); |
| 1274 | XSTRING (array)->data[idxval] = XINT (newelt); |
| 1275 | } |
| 1276 | |
| 1277 | return newelt; |
| 1278 | } |
| 1279 | |
| 1280 | Lisp_Object |
| 1281 | Farray_length (array) |
| 1282 | register Lisp_Object array; |
| 1283 | { |
| 1284 | register Lisp_Object size; |
| 1285 | if (XTYPE (array) != Lisp_Vector && XTYPE (array) != Lisp_String |
| 1286 | && XTYPE (array) != Lisp_Compiled) |
| 1287 | array = wrong_type_argument (Qarrayp, array); |
| 1288 | XFASTINT (size) = XVECTOR (array)->size; |
| 1289 | return size; |
| 1290 | } |
| 1291 | \f |
| 1292 | /* Arithmetic functions */ |
| 1293 | |
| 1294 | enum comparison { equal, notequal, less, grtr, less_or_equal, grtr_or_equal }; |
| 1295 | |
| 1296 | Lisp_Object |
| 1297 | arithcompare (num1, num2, comparison) |
| 1298 | Lisp_Object num1, num2; |
| 1299 | enum comparison comparison; |
| 1300 | { |
| 1301 | double f1, f2; |
| 1302 | int floatp = 0; |
| 1303 | |
| 1304 | #ifdef LISP_FLOAT_TYPE |
| 1305 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1, 0); |
| 1306 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2, 0); |
| 1307 | |
| 1308 | if (XTYPE (num1) == Lisp_Float || XTYPE (num2) == Lisp_Float) |
| 1309 | { |
| 1310 | floatp = 1; |
| 1311 | f1 = (XTYPE (num1) == Lisp_Float) ? XFLOAT (num1)->data : XINT (num1); |
| 1312 | f2 = (XTYPE (num2) == Lisp_Float) ? XFLOAT (num2)->data : XINT (num2); |
| 1313 | } |
| 1314 | #else |
| 1315 | CHECK_NUMBER_COERCE_MARKER (num1, 0); |
| 1316 | CHECK_NUMBER_COERCE_MARKER (num2, 0); |
| 1317 | #endif /* LISP_FLOAT_TYPE */ |
| 1318 | |
| 1319 | switch (comparison) |
| 1320 | { |
| 1321 | case equal: |
| 1322 | if (floatp ? f1 == f2 : XINT (num1) == XINT (num2)) |
| 1323 | return Qt; |
| 1324 | return Qnil; |
| 1325 | |
| 1326 | case notequal: |
| 1327 | if (floatp ? f1 != f2 : XINT (num1) != XINT (num2)) |
| 1328 | return Qt; |
| 1329 | return Qnil; |
| 1330 | |
| 1331 | case less: |
| 1332 | if (floatp ? f1 < f2 : XINT (num1) < XINT (num2)) |
| 1333 | return Qt; |
| 1334 | return Qnil; |
| 1335 | |
| 1336 | case less_or_equal: |
| 1337 | if (floatp ? f1 <= f2 : XINT (num1) <= XINT (num2)) |
| 1338 | return Qt; |
| 1339 | return Qnil; |
| 1340 | |
| 1341 | case grtr: |
| 1342 | if (floatp ? f1 > f2 : XINT (num1) > XINT (num2)) |
| 1343 | return Qt; |
| 1344 | return Qnil; |
| 1345 | |
| 1346 | case grtr_or_equal: |
| 1347 | if (floatp ? f1 >= f2 : XINT (num1) >= XINT (num2)) |
| 1348 | return Qt; |
| 1349 | return Qnil; |
| 1350 | |
| 1351 | default: |
| 1352 | abort (); |
| 1353 | } |
| 1354 | } |
| 1355 | |
| 1356 | DEFUN ("=", Feqlsign, Seqlsign, 2, 2, 0, |
| 1357 | "T if two args, both numbers or markers, are equal.") |
| 1358 | (num1, num2) |
| 1359 | register Lisp_Object num1, num2; |
| 1360 | { |
| 1361 | return arithcompare (num1, num2, equal); |
| 1362 | } |
| 1363 | |
| 1364 | DEFUN ("<", Flss, Slss, 2, 2, 0, |
| 1365 | "T if first arg is less than second arg. Both must be numbers or markers.") |
| 1366 | (num1, num2) |
| 1367 | register Lisp_Object num1, num2; |
| 1368 | { |
| 1369 | return arithcompare (num1, num2, less); |
| 1370 | } |
| 1371 | |
| 1372 | DEFUN (">", Fgtr, Sgtr, 2, 2, 0, |
| 1373 | "T if first arg is greater than second arg. Both must be numbers or markers.") |
| 1374 | (num1, num2) |
| 1375 | register Lisp_Object num1, num2; |
| 1376 | { |
| 1377 | return arithcompare (num1, num2, grtr); |
| 1378 | } |
| 1379 | |
| 1380 | DEFUN ("<=", Fleq, Sleq, 2, 2, 0, |
| 1381 | "T if first arg is less than or equal to second arg.\n\ |
| 1382 | Both must be numbers or markers.") |
| 1383 | (num1, num2) |
| 1384 | register Lisp_Object num1, num2; |
| 1385 | { |
| 1386 | return arithcompare (num1, num2, less_or_equal); |
| 1387 | } |
| 1388 | |
| 1389 | DEFUN (">=", Fgeq, Sgeq, 2, 2, 0, |
| 1390 | "T if first arg is greater than or equal to second arg.\n\ |
| 1391 | Both must be numbers or markers.") |
| 1392 | (num1, num2) |
| 1393 | register Lisp_Object num1, num2; |
| 1394 | { |
| 1395 | return arithcompare (num1, num2, grtr_or_equal); |
| 1396 | } |
| 1397 | |
| 1398 | DEFUN ("/=", Fneq, Sneq, 2, 2, 0, |
| 1399 | "T if first arg is not equal to second arg. Both must be numbers or markers.") |
| 1400 | (num1, num2) |
| 1401 | register Lisp_Object num1, num2; |
| 1402 | { |
| 1403 | return arithcompare (num1, num2, notequal); |
| 1404 | } |
| 1405 | |
| 1406 | DEFUN ("zerop", Fzerop, Szerop, 1, 1, 0, "T if NUMBER is zero.") |
| 1407 | (num) |
| 1408 | register Lisp_Object num; |
| 1409 | { |
| 1410 | #ifdef LISP_FLOAT_TYPE |
| 1411 | CHECK_NUMBER_OR_FLOAT (num, 0); |
| 1412 | |
| 1413 | if (XTYPE(num) == Lisp_Float) |
| 1414 | { |
| 1415 | if (XFLOAT(num)->data == 0.0) |
| 1416 | return Qt; |
| 1417 | return Qnil; |
| 1418 | } |
| 1419 | #else |
| 1420 | CHECK_NUMBER (num, 0); |
| 1421 | #endif /* LISP_FLOAT_TYPE */ |
| 1422 | |
| 1423 | if (!XINT (num)) |
| 1424 | return Qt; |
| 1425 | return Qnil; |
| 1426 | } |
| 1427 | \f |
| 1428 | DEFUN ("int-to-string", Fint_to_string, Sint_to_string, 1, 1, 0, |
| 1429 | "Convert NUM to a string by printing it in decimal.\n\ |
| 1430 | Uses a minus sign if negative.\n\ |
| 1431 | NUM may be an integer or a floating point number.") |
| 1432 | (num) |
| 1433 | Lisp_Object num; |
| 1434 | { |
| 1435 | char buffer[20]; |
| 1436 | |
| 1437 | #ifndef LISP_FLOAT_TYPE |
| 1438 | CHECK_NUMBER (num, 0); |
| 1439 | #else |
| 1440 | CHECK_NUMBER_OR_FLOAT (num, 0); |
| 1441 | |
| 1442 | if (XTYPE(num) == Lisp_Float) |
| 1443 | { |
| 1444 | char pigbuf[350]; /* see comments in float_to_string */ |
| 1445 | |
| 1446 | float_to_string (pigbuf, XFLOAT(num)->data); |
| 1447 | return build_string (pigbuf); |
| 1448 | } |
| 1449 | #endif /* LISP_FLOAT_TYPE */ |
| 1450 | |
| 1451 | sprintf (buffer, "%d", XINT (num)); |
| 1452 | return build_string (buffer); |
| 1453 | } |
| 1454 | |
| 1455 | DEFUN ("string-to-number", Fstring_to_number, Sstring_to_number, 1, 1, 0, |
| 1456 | "Convert STRING to a number by parsing it as a decimal number.\n\ |
| 1457 | This parses both integers and floating point numbers.") |
| 1458 | (str) |
| 1459 | register Lisp_Object str; |
| 1460 | { |
| 1461 | unsigned char *p; |
| 1462 | |
| 1463 | CHECK_STRING (str, 0); |
| 1464 | |
| 1465 | p = XSTRING (str)->data; |
| 1466 | |
| 1467 | /* Skip any whitespace at the front of the number. Some versions of |
| 1468 | atoi do this anyway, so we might as well make Emacs lisp consistent. */ |
| 1469 | while (*p == ' ' || *p == '\t') |
| 1470 | p++; |
| 1471 | |
| 1472 | #ifdef LISP_FLOAT_TYPE |
| 1473 | if (isfloat_string (p)) |
| 1474 | return make_float (atof (p)); |
| 1475 | #endif /* LISP_FLOAT_TYPE */ |
| 1476 | |
| 1477 | return make_number (atoi (p)); |
| 1478 | } |
| 1479 | \f |
| 1480 | enum arithop |
| 1481 | { Aadd, Asub, Amult, Adiv, Alogand, Alogior, Alogxor, Amax, Amin }; |
| 1482 | |
| 1483 | extern Lisp_Object float_arith_driver (); |
| 1484 | |
| 1485 | Lisp_Object |
| 1486 | arith_driver |
| 1487 | (code, nargs, args) |
| 1488 | enum arithop code; |
| 1489 | int nargs; |
| 1490 | register Lisp_Object *args; |
| 1491 | { |
| 1492 | register Lisp_Object val; |
| 1493 | register int argnum; |
| 1494 | register int accum; |
| 1495 | register int next; |
| 1496 | |
| 1497 | #ifdef SWITCH_ENUM_BUG |
| 1498 | switch ((int) code) |
| 1499 | #else |
| 1500 | switch (code) |
| 1501 | #endif |
| 1502 | { |
| 1503 | case Alogior: |
| 1504 | case Alogxor: |
| 1505 | case Aadd: |
| 1506 | case Asub: |
| 1507 | accum = 0; break; |
| 1508 | case Amult: |
| 1509 | accum = 1; break; |
| 1510 | case Alogand: |
| 1511 | accum = -1; break; |
| 1512 | } |
| 1513 | |
| 1514 | for (argnum = 0; argnum < nargs; argnum++) |
| 1515 | { |
| 1516 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ |
| 1517 | #ifdef LISP_FLOAT_TYPE |
| 1518 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val, argnum); |
| 1519 | |
| 1520 | if (XTYPE (val) == Lisp_Float) /* time to do serious math */ |
| 1521 | return (float_arith_driver ((double) accum, argnum, code, |
| 1522 | nargs, args)); |
| 1523 | #else |
| 1524 | CHECK_NUMBER_COERCE_MARKER (val, argnum); |
| 1525 | #endif /* LISP_FLOAT_TYPE */ |
| 1526 | args[argnum] = val; /* runs into a compiler bug. */ |
| 1527 | next = XINT (args[argnum]); |
| 1528 | #ifdef SWITCH_ENUM_BUG |
| 1529 | switch ((int) code) |
| 1530 | #else |
| 1531 | switch (code) |
| 1532 | #endif |
| 1533 | { |
| 1534 | case Aadd: accum += next; break; |
| 1535 | case Asub: |
| 1536 | if (!argnum && nargs != 1) |
| 1537 | next = - next; |
| 1538 | accum -= next; |
| 1539 | break; |
| 1540 | case Amult: accum *= next; break; |
| 1541 | case Adiv: |
| 1542 | if (!argnum) accum = next; |
| 1543 | else accum /= next; |
| 1544 | break; |
| 1545 | case Alogand: accum &= next; break; |
| 1546 | case Alogior: accum |= next; break; |
| 1547 | case Alogxor: accum ^= next; break; |
| 1548 | case Amax: if (!argnum || next > accum) accum = next; break; |
| 1549 | case Amin: if (!argnum || next < accum) accum = next; break; |
| 1550 | } |
| 1551 | } |
| 1552 | |
| 1553 | XSET (val, Lisp_Int, accum); |
| 1554 | return val; |
| 1555 | } |
| 1556 | |
| 1557 | #ifdef LISP_FLOAT_TYPE |
| 1558 | Lisp_Object |
| 1559 | float_arith_driver (accum, argnum, code, nargs, args) |
| 1560 | double accum; |
| 1561 | register int argnum; |
| 1562 | enum arithop code; |
| 1563 | int nargs; |
| 1564 | register Lisp_Object *args; |
| 1565 | { |
| 1566 | register Lisp_Object val; |
| 1567 | double next; |
| 1568 | |
| 1569 | for (; argnum < nargs; argnum++) |
| 1570 | { |
| 1571 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ |
| 1572 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val, argnum); |
| 1573 | |
| 1574 | if (XTYPE (val) == Lisp_Float) |
| 1575 | { |
| 1576 | next = XFLOAT (val)->data; |
| 1577 | } |
| 1578 | else |
| 1579 | { |
| 1580 | args[argnum] = val; /* runs into a compiler bug. */ |
| 1581 | next = XINT (args[argnum]); |
| 1582 | } |
| 1583 | #ifdef SWITCH_ENUM_BUG |
| 1584 | switch ((int) code) |
| 1585 | #else |
| 1586 | switch (code) |
| 1587 | #endif |
| 1588 | { |
| 1589 | case Aadd: |
| 1590 | accum += next; |
| 1591 | break; |
| 1592 | case Asub: |
| 1593 | if (!argnum && nargs != 1) |
| 1594 | next = - next; |
| 1595 | accum -= next; |
| 1596 | break; |
| 1597 | case Amult: |
| 1598 | accum *= next; |
| 1599 | break; |
| 1600 | case Adiv: |
| 1601 | if (!argnum) |
| 1602 | accum = next; |
| 1603 | else |
| 1604 | accum /= next; |
| 1605 | break; |
| 1606 | case Alogand: |
| 1607 | case Alogior: |
| 1608 | case Alogxor: |
| 1609 | return wrong_type_argument (Qinteger_or_marker_p, val); |
| 1610 | case Amax: |
| 1611 | if (!argnum || next > accum) |
| 1612 | accum = next; |
| 1613 | break; |
| 1614 | case Amin: |
| 1615 | if (!argnum || next < accum) |
| 1616 | accum = next; |
| 1617 | break; |
| 1618 | } |
| 1619 | } |
| 1620 | |
| 1621 | return make_float (accum); |
| 1622 | } |
| 1623 | #endif /* LISP_FLOAT_TYPE */ |
| 1624 | |
| 1625 | DEFUN ("+", Fplus, Splus, 0, MANY, 0, |
| 1626 | "Return sum of any number of arguments, which are numbers or markers.") |
| 1627 | (nargs, args) |
| 1628 | int nargs; |
| 1629 | Lisp_Object *args; |
| 1630 | { |
| 1631 | return arith_driver (Aadd, nargs, args); |
| 1632 | } |
| 1633 | |
| 1634 | DEFUN ("-", Fminus, Sminus, 0, MANY, 0, |
| 1635 | "Negate number or subtract numbers or markers.\n\ |
| 1636 | With one arg, negates it. With more than one arg,\n\ |
| 1637 | subtracts all but the first from the first.") |
| 1638 | (nargs, args) |
| 1639 | int nargs; |
| 1640 | Lisp_Object *args; |
| 1641 | { |
| 1642 | return arith_driver (Asub, nargs, args); |
| 1643 | } |
| 1644 | |
| 1645 | DEFUN ("*", Ftimes, Stimes, 0, MANY, 0, |
| 1646 | "Returns product of any number of arguments, which are numbers or markers.") |
| 1647 | (nargs, args) |
| 1648 | int nargs; |
| 1649 | Lisp_Object *args; |
| 1650 | { |
| 1651 | return arith_driver (Amult, nargs, args); |
| 1652 | } |
| 1653 | |
| 1654 | DEFUN ("/", Fquo, Squo, 2, MANY, 0, |
| 1655 | "Returns first argument divided by all the remaining arguments.\n\ |
| 1656 | The arguments must be numbers or markers.") |
| 1657 | (nargs, args) |
| 1658 | int nargs; |
| 1659 | Lisp_Object *args; |
| 1660 | { |
| 1661 | return arith_driver (Adiv, nargs, args); |
| 1662 | } |
| 1663 | |
| 1664 | DEFUN ("%", Frem, Srem, 2, 2, 0, |
| 1665 | "Returns remainder of first arg divided by second.\n\ |
| 1666 | Both must be numbers or markers.") |
| 1667 | (num1, num2) |
| 1668 | register Lisp_Object num1, num2; |
| 1669 | { |
| 1670 | Lisp_Object val; |
| 1671 | |
| 1672 | #ifdef LISP_FLOAT_TYPE |
| 1673 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1, 0); |
| 1674 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2, 0); |
| 1675 | |
| 1676 | if (XTYPE (num1) == Lisp_Float || XTYPE (num2) == Lisp_Float) |
| 1677 | { |
| 1678 | double f1, f2; |
| 1679 | |
| 1680 | f1 = XTYPE (num1) == Lisp_Float ? XFLOAT (num1)->data : XINT (num1); |
| 1681 | f2 = XTYPE (num2) == Lisp_Float ? XFLOAT (num2)->data : XINT (num2); |
| 1682 | #if defined (USG) || defined (sun) || defined (ultrix) || defined (hpux) |
| 1683 | f1 = fmod (f1, f2); |
| 1684 | #else |
| 1685 | f1 = drem (f1, f2); |
| 1686 | #endif |
| 1687 | if (f1 < 0) |
| 1688 | f1 += f2; |
| 1689 | return (make_float (f1)); |
| 1690 | } |
| 1691 | #else /* not LISP_FLOAT_TYPE */ |
| 1692 | CHECK_NUMBER_COERCE_MARKER (num1, 0); |
| 1693 | CHECK_NUMBER_COERCE_MARKER (num2, 1); |
| 1694 | #endif /* not LISP_FLOAT_TYPE */ |
| 1695 | |
| 1696 | XSET (val, Lisp_Int, XINT (num1) % XINT (num2)); |
| 1697 | return val; |
| 1698 | } |
| 1699 | |
| 1700 | DEFUN ("max", Fmax, Smax, 1, MANY, 0, |
| 1701 | "Return largest of all the arguments (which must be numbers or markers).\n\ |
| 1702 | The value is always a number; markers are converted to numbers.") |
| 1703 | (nargs, args) |
| 1704 | int nargs; |
| 1705 | Lisp_Object *args; |
| 1706 | { |
| 1707 | return arith_driver (Amax, nargs, args); |
| 1708 | } |
| 1709 | |
| 1710 | DEFUN ("min", Fmin, Smin, 1, MANY, 0, |
| 1711 | "Return smallest of all the arguments (which must be numbers or markers).\n\ |
| 1712 | The value is always a number; markers are converted to numbers.") |
| 1713 | (nargs, args) |
| 1714 | int nargs; |
| 1715 | Lisp_Object *args; |
| 1716 | { |
| 1717 | return arith_driver (Amin, nargs, args); |
| 1718 | } |
| 1719 | |
| 1720 | DEFUN ("logand", Flogand, Slogand, 0, MANY, 0, |
| 1721 | "Return bitwise-and of all the arguments.\n\ |
| 1722 | Arguments may be integers, or markers converted to integers.") |
| 1723 | (nargs, args) |
| 1724 | int nargs; |
| 1725 | Lisp_Object *args; |
| 1726 | { |
| 1727 | return arith_driver (Alogand, nargs, args); |
| 1728 | } |
| 1729 | |
| 1730 | DEFUN ("logior", Flogior, Slogior, 0, MANY, 0, |
| 1731 | "Return bitwise-or of all the arguments.\n\ |
| 1732 | Arguments may be integers, or markers converted to integers.") |
| 1733 | (nargs, args) |
| 1734 | int nargs; |
| 1735 | Lisp_Object *args; |
| 1736 | { |
| 1737 | return arith_driver (Alogior, nargs, args); |
| 1738 | } |
| 1739 | |
| 1740 | DEFUN ("logxor", Flogxor, Slogxor, 0, MANY, 0, |
| 1741 | "Return bitwise-exclusive-or of all the arguments.\n\ |
| 1742 | Arguments may be integers, or markers converted to integers.") |
| 1743 | (nargs, args) |
| 1744 | int nargs; |
| 1745 | Lisp_Object *args; |
| 1746 | { |
| 1747 | return arith_driver (Alogxor, nargs, args); |
| 1748 | } |
| 1749 | |
| 1750 | DEFUN ("ash", Fash, Sash, 2, 2, 0, |
| 1751 | "Return VALUE with its bits shifted left by COUNT.\n\ |
| 1752 | If COUNT is negative, shifting is actually to the right.\n\ |
| 1753 | In this case, the sign bit is duplicated.") |
| 1754 | (num1, num2) |
| 1755 | register Lisp_Object num1, num2; |
| 1756 | { |
| 1757 | register Lisp_Object val; |
| 1758 | |
| 1759 | CHECK_NUMBER (num1, 0); |
| 1760 | CHECK_NUMBER (num2, 1); |
| 1761 | |
| 1762 | if (XINT (num2) > 0) |
| 1763 | XSET (val, Lisp_Int, XINT (num1) << XFASTINT (num2)); |
| 1764 | else |
| 1765 | XSET (val, Lisp_Int, XINT (num1) >> -XINT (num2)); |
| 1766 | return val; |
| 1767 | } |
| 1768 | |
| 1769 | DEFUN ("lsh", Flsh, Slsh, 2, 2, 0, |
| 1770 | "Return VALUE with its bits shifted left by COUNT.\n\ |
| 1771 | If COUNT is negative, shifting is actually to the right.\n\ |
| 1772 | In this case, zeros are shifted in on the left.") |
| 1773 | (num1, num2) |
| 1774 | register Lisp_Object num1, num2; |
| 1775 | { |
| 1776 | register Lisp_Object val; |
| 1777 | |
| 1778 | CHECK_NUMBER (num1, 0); |
| 1779 | CHECK_NUMBER (num2, 1); |
| 1780 | |
| 1781 | if (XINT (num2) > 0) |
| 1782 | XSET (val, Lisp_Int, (unsigned) XFASTINT (num1) << XFASTINT (num2)); |
| 1783 | else |
| 1784 | XSET (val, Lisp_Int, (unsigned) XFASTINT (num1) >> -XINT (num2)); |
| 1785 | return val; |
| 1786 | } |
| 1787 | |
| 1788 | DEFUN ("1+", Fadd1, Sadd1, 1, 1, 0, |
| 1789 | "Return NUMBER plus one. NUMBER may be a number or a marker.\n\ |
| 1790 | Markers are converted to integers.") |
| 1791 | (num) |
| 1792 | register Lisp_Object num; |
| 1793 | { |
| 1794 | #ifdef LISP_FLOAT_TYPE |
| 1795 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num, 0); |
| 1796 | |
| 1797 | if (XTYPE (num) == Lisp_Float) |
| 1798 | return (make_float (1.0 + XFLOAT (num)->data)); |
| 1799 | #else |
| 1800 | CHECK_NUMBER_COERCE_MARKER (num, 0); |
| 1801 | #endif /* LISP_FLOAT_TYPE */ |
| 1802 | |
| 1803 | XSETINT (num, XFASTINT (num) + 1); |
| 1804 | return num; |
| 1805 | } |
| 1806 | |
| 1807 | DEFUN ("1-", Fsub1, Ssub1, 1, 1, 0, |
| 1808 | "Return NUMBER minus one. NUMBER may be a number or a marker.\n\ |
| 1809 | Markers are converted to integers.") |
| 1810 | (num) |
| 1811 | register Lisp_Object num; |
| 1812 | { |
| 1813 | #ifdef LISP_FLOAT_TYPE |
| 1814 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num, 0); |
| 1815 | |
| 1816 | if (XTYPE (num) == Lisp_Float) |
| 1817 | return (make_float (-1.0 + XFLOAT (num)->data)); |
| 1818 | #else |
| 1819 | CHECK_NUMBER_COERCE_MARKER (num, 0); |
| 1820 | #endif /* LISP_FLOAT_TYPE */ |
| 1821 | |
| 1822 | XSETINT (num, XFASTINT (num) - 1); |
| 1823 | return num; |
| 1824 | } |
| 1825 | |
| 1826 | DEFUN ("lognot", Flognot, Slognot, 1, 1, 0, |
| 1827 | "Return the bitwise complement of ARG. ARG must be an integer.") |
| 1828 | (num) |
| 1829 | register Lisp_Object num; |
| 1830 | { |
| 1831 | CHECK_NUMBER (num, 0); |
| 1832 | XSETINT (num, ~XFASTINT (num)); |
| 1833 | return num; |
| 1834 | } |
| 1835 | \f |
| 1836 | void |
| 1837 | syms_of_data () |
| 1838 | { |
| 1839 | Lisp_Object error_tail, arith_tail; |
| 1840 | |
| 1841 | Qquote = intern ("quote"); |
| 1842 | Qlambda = intern ("lambda"); |
| 1843 | Qsubr = intern ("subr"); |
| 1844 | Qerror_conditions = intern ("error-conditions"); |
| 1845 | Qerror_message = intern ("error-message"); |
| 1846 | Qtop_level = intern ("top-level"); |
| 1847 | |
| 1848 | Qerror = intern ("error"); |
| 1849 | Qquit = intern ("quit"); |
| 1850 | Qwrong_type_argument = intern ("wrong-type-argument"); |
| 1851 | Qargs_out_of_range = intern ("args-out-of-range"); |
| 1852 | Qvoid_function = intern ("void-function"); |
| 1853 | Qcyclic_function_indirection = intern ("cyclic-function-indirection"); |
| 1854 | Qvoid_variable = intern ("void-variable"); |
| 1855 | Qsetting_constant = intern ("setting-constant"); |
| 1856 | Qinvalid_read_syntax = intern ("invalid-read-syntax"); |
| 1857 | |
| 1858 | Qinvalid_function = intern ("invalid-function"); |
| 1859 | Qwrong_number_of_arguments = intern ("wrong-number-of-arguments"); |
| 1860 | Qno_catch = intern ("no-catch"); |
| 1861 | Qend_of_file = intern ("end-of-file"); |
| 1862 | Qarith_error = intern ("arith-error"); |
| 1863 | Qbeginning_of_buffer = intern ("beginning-of-buffer"); |
| 1864 | Qend_of_buffer = intern ("end-of-buffer"); |
| 1865 | Qbuffer_read_only = intern ("buffer-read-only"); |
| 1866 | |
| 1867 | Qlistp = intern ("listp"); |
| 1868 | Qconsp = intern ("consp"); |
| 1869 | Qsymbolp = intern ("symbolp"); |
| 1870 | Qintegerp = intern ("integerp"); |
| 1871 | Qnatnump = intern ("natnump"); |
| 1872 | Qstringp = intern ("stringp"); |
| 1873 | Qarrayp = intern ("arrayp"); |
| 1874 | Qsequencep = intern ("sequencep"); |
| 1875 | Qbufferp = intern ("bufferp"); |
| 1876 | Qvectorp = intern ("vectorp"); |
| 1877 | Qchar_or_string_p = intern ("char-or-string-p"); |
| 1878 | Qmarkerp = intern ("markerp"); |
| 1879 | Qbuffer_or_string_p = intern ("buffer-or-string-p"); |
| 1880 | Qinteger_or_marker_p = intern ("integer-or-marker-p"); |
| 1881 | Qboundp = intern ("boundp"); |
| 1882 | Qfboundp = intern ("fboundp"); |
| 1883 | |
| 1884 | #ifdef LISP_FLOAT_TYPE |
| 1885 | Qfloatp = intern ("floatp"); |
| 1886 | Qnumberp = intern ("numberp"); |
| 1887 | Qnumber_or_marker_p = intern ("number-or-marker-p"); |
| 1888 | #endif /* LISP_FLOAT_TYPE */ |
| 1889 | |
| 1890 | Qcdr = intern ("cdr"); |
| 1891 | |
| 1892 | error_tail = Fcons (Qerror, Qnil); |
| 1893 | |
| 1894 | /* ERROR is used as a signaler for random errors for which nothing else is right */ |
| 1895 | |
| 1896 | Fput (Qerror, Qerror_conditions, |
| 1897 | error_tail); |
| 1898 | Fput (Qerror, Qerror_message, |
| 1899 | build_string ("error")); |
| 1900 | |
| 1901 | Fput (Qquit, Qerror_conditions, |
| 1902 | Fcons (Qquit, Qnil)); |
| 1903 | Fput (Qquit, Qerror_message, |
| 1904 | build_string ("Quit")); |
| 1905 | |
| 1906 | Fput (Qwrong_type_argument, Qerror_conditions, |
| 1907 | Fcons (Qwrong_type_argument, error_tail)); |
| 1908 | Fput (Qwrong_type_argument, Qerror_message, |
| 1909 | build_string ("Wrong type argument")); |
| 1910 | |
| 1911 | Fput (Qargs_out_of_range, Qerror_conditions, |
| 1912 | Fcons (Qargs_out_of_range, error_tail)); |
| 1913 | Fput (Qargs_out_of_range, Qerror_message, |
| 1914 | build_string ("Args out of range")); |
| 1915 | |
| 1916 | Fput (Qvoid_function, Qerror_conditions, |
| 1917 | Fcons (Qvoid_function, error_tail)); |
| 1918 | Fput (Qvoid_function, Qerror_message, |
| 1919 | build_string ("Symbol's function definition is void")); |
| 1920 | |
| 1921 | Fput (Qcyclic_function_indirection, Qerror_conditions, |
| 1922 | Fcons (Qcyclic_function_indirection, error_tail)); |
| 1923 | Fput (Qcyclic_function_indirection, Qerror_message, |
| 1924 | build_string ("Symbol's chain of function indirections contains a loop")); |
| 1925 | |
| 1926 | Fput (Qvoid_variable, Qerror_conditions, |
| 1927 | Fcons (Qvoid_variable, error_tail)); |
| 1928 | Fput (Qvoid_variable, Qerror_message, |
| 1929 | build_string ("Symbol's value as variable is void")); |
| 1930 | |
| 1931 | Fput (Qsetting_constant, Qerror_conditions, |
| 1932 | Fcons (Qsetting_constant, error_tail)); |
| 1933 | Fput (Qsetting_constant, Qerror_message, |
| 1934 | build_string ("Attempt to set a constant symbol")); |
| 1935 | |
| 1936 | Fput (Qinvalid_read_syntax, Qerror_conditions, |
| 1937 | Fcons (Qinvalid_read_syntax, error_tail)); |
| 1938 | Fput (Qinvalid_read_syntax, Qerror_message, |
| 1939 | build_string ("Invalid read syntax")); |
| 1940 | |
| 1941 | Fput (Qinvalid_function, Qerror_conditions, |
| 1942 | Fcons (Qinvalid_function, error_tail)); |
| 1943 | Fput (Qinvalid_function, Qerror_message, |
| 1944 | build_string ("Invalid function")); |
| 1945 | |
| 1946 | Fput (Qwrong_number_of_arguments, Qerror_conditions, |
| 1947 | Fcons (Qwrong_number_of_arguments, error_tail)); |
| 1948 | Fput (Qwrong_number_of_arguments, Qerror_message, |
| 1949 | build_string ("Wrong number of arguments")); |
| 1950 | |
| 1951 | Fput (Qno_catch, Qerror_conditions, |
| 1952 | Fcons (Qno_catch, error_tail)); |
| 1953 | Fput (Qno_catch, Qerror_message, |
| 1954 | build_string ("No catch for tag")); |
| 1955 | |
| 1956 | Fput (Qend_of_file, Qerror_conditions, |
| 1957 | Fcons (Qend_of_file, error_tail)); |
| 1958 | Fput (Qend_of_file, Qerror_message, |
| 1959 | build_string ("End of file during parsing")); |
| 1960 | |
| 1961 | arith_tail = Fcons (Qarith_error, error_tail); |
| 1962 | Fput (Qarith_error, Qerror_conditions, |
| 1963 | arith_tail); |
| 1964 | Fput (Qarith_error, Qerror_message, |
| 1965 | build_string ("Arithmetic error")); |
| 1966 | |
| 1967 | Fput (Qbeginning_of_buffer, Qerror_conditions, |
| 1968 | Fcons (Qbeginning_of_buffer, error_tail)); |
| 1969 | Fput (Qbeginning_of_buffer, Qerror_message, |
| 1970 | build_string ("Beginning of buffer")); |
| 1971 | |
| 1972 | Fput (Qend_of_buffer, Qerror_conditions, |
| 1973 | Fcons (Qend_of_buffer, error_tail)); |
| 1974 | Fput (Qend_of_buffer, Qerror_message, |
| 1975 | build_string ("End of buffer")); |
| 1976 | |
| 1977 | Fput (Qbuffer_read_only, Qerror_conditions, |
| 1978 | Fcons (Qbuffer_read_only, error_tail)); |
| 1979 | Fput (Qbuffer_read_only, Qerror_message, |
| 1980 | build_string ("Buffer is read-only")); |
| 1981 | |
| 1982 | #ifdef LISP_FLOAT_TYPE |
| 1983 | Qrange_error = intern ("range-error"); |
| 1984 | Qdomain_error = intern ("domain-error"); |
| 1985 | Qsingularity_error = intern ("singularity-error"); |
| 1986 | Qoverflow_error = intern ("overflow-error"); |
| 1987 | Qunderflow_error = intern ("underflow-error"); |
| 1988 | |
| 1989 | Fput (Qdomain_error, Qerror_conditions, |
| 1990 | Fcons (Qdomain_error, arith_tail)); |
| 1991 | Fput (Qdomain_error, Qerror_message, |
| 1992 | build_string ("Arithmetic domain error")); |
| 1993 | |
| 1994 | Fput (Qrange_error, Qerror_conditions, |
| 1995 | Fcons (Qrange_error, arith_tail)); |
| 1996 | Fput (Qrange_error, Qerror_message, |
| 1997 | build_string ("Arithmetic range error")); |
| 1998 | |
| 1999 | Fput (Qsingularity_error, Qerror_conditions, |
| 2000 | Fcons (Qsingularity_error, Fcons (Qdomain_error, arith_tail))); |
| 2001 | Fput (Qsingularity_error, Qerror_message, |
| 2002 | build_string ("Arithmetic singularity error")); |
| 2003 | |
| 2004 | Fput (Qoverflow_error, Qerror_conditions, |
| 2005 | Fcons (Qoverflow_error, Fcons (Qdomain_error, arith_tail))); |
| 2006 | Fput (Qoverflow_error, Qerror_message, |
| 2007 | build_string ("Arithmetic overflow error")); |
| 2008 | |
| 2009 | Fput (Qunderflow_error, Qerror_conditions, |
| 2010 | Fcons (Qunderflow_error, Fcons (Qdomain_error, arith_tail))); |
| 2011 | Fput (Qunderflow_error, Qerror_message, |
| 2012 | build_string ("Arithmetic underflow error")); |
| 2013 | |
| 2014 | staticpro (&Qrange_error); |
| 2015 | staticpro (&Qdomain_error); |
| 2016 | staticpro (&Qsingularity_error); |
| 2017 | staticpro (&Qoverflow_error); |
| 2018 | staticpro (&Qunderflow_error); |
| 2019 | #endif /* LISP_FLOAT_TYPE */ |
| 2020 | |
| 2021 | staticpro (&Qnil); |
| 2022 | staticpro (&Qt); |
| 2023 | staticpro (&Qquote); |
| 2024 | staticpro (&Qlambda); |
| 2025 | staticpro (&Qsubr); |
| 2026 | staticpro (&Qunbound); |
| 2027 | staticpro (&Qerror_conditions); |
| 2028 | staticpro (&Qerror_message); |
| 2029 | staticpro (&Qtop_level); |
| 2030 | |
| 2031 | staticpro (&Qerror); |
| 2032 | staticpro (&Qquit); |
| 2033 | staticpro (&Qwrong_type_argument); |
| 2034 | staticpro (&Qargs_out_of_range); |
| 2035 | staticpro (&Qvoid_function); |
| 2036 | staticpro (&Qcyclic_function_indirection); |
| 2037 | staticpro (&Qvoid_variable); |
| 2038 | staticpro (&Qsetting_constant); |
| 2039 | staticpro (&Qinvalid_read_syntax); |
| 2040 | staticpro (&Qwrong_number_of_arguments); |
| 2041 | staticpro (&Qinvalid_function); |
| 2042 | staticpro (&Qno_catch); |
| 2043 | staticpro (&Qend_of_file); |
| 2044 | staticpro (&Qarith_error); |
| 2045 | staticpro (&Qbeginning_of_buffer); |
| 2046 | staticpro (&Qend_of_buffer); |
| 2047 | staticpro (&Qbuffer_read_only); |
| 2048 | |
| 2049 | staticpro (&Qlistp); |
| 2050 | staticpro (&Qconsp); |
| 2051 | staticpro (&Qsymbolp); |
| 2052 | staticpro (&Qintegerp); |
| 2053 | staticpro (&Qnatnump); |
| 2054 | staticpro (&Qstringp); |
| 2055 | staticpro (&Qarrayp); |
| 2056 | staticpro (&Qsequencep); |
| 2057 | staticpro (&Qbufferp); |
| 2058 | staticpro (&Qvectorp); |
| 2059 | staticpro (&Qchar_or_string_p); |
| 2060 | staticpro (&Qmarkerp); |
| 2061 | staticpro (&Qbuffer_or_string_p); |
| 2062 | staticpro (&Qinteger_or_marker_p); |
| 2063 | #ifdef LISP_FLOAT_TYPE |
| 2064 | staticpro (&Qfloatp); |
| 2065 | staticpro (&Qnumberp); |
| 2066 | staticpro (&Qnumber_or_marker_p); |
| 2067 | #endif /* LISP_FLOAT_TYPE */ |
| 2068 | |
| 2069 | staticpro (&Qboundp); |
| 2070 | staticpro (&Qfboundp); |
| 2071 | staticpro (&Qcdr); |
| 2072 | |
| 2073 | defsubr (&Seq); |
| 2074 | defsubr (&Snull); |
| 2075 | defsubr (&Slistp); |
| 2076 | defsubr (&Snlistp); |
| 2077 | defsubr (&Sconsp); |
| 2078 | defsubr (&Satom); |
| 2079 | defsubr (&Sintegerp); |
| 2080 | defsubr (&Sinteger_or_marker_p); |
| 2081 | defsubr (&Snumberp); |
| 2082 | defsubr (&Snumber_or_marker_p); |
| 2083 | #ifdef LISP_FLOAT_TYPE |
| 2084 | defsubr (&Sfloatp); |
| 2085 | #endif /* LISP_FLOAT_TYPE */ |
| 2086 | defsubr (&Snatnump); |
| 2087 | defsubr (&Ssymbolp); |
| 2088 | defsubr (&Sstringp); |
| 2089 | defsubr (&Svectorp); |
| 2090 | defsubr (&Sarrayp); |
| 2091 | defsubr (&Ssequencep); |
| 2092 | defsubr (&Sbufferp); |
| 2093 | defsubr (&Smarkerp); |
| 2094 | defsubr (&Ssubrp); |
| 2095 | defsubr (&Sbyte_code_function_p); |
| 2096 | defsubr (&Schar_or_string_p); |
| 2097 | defsubr (&Scar); |
| 2098 | defsubr (&Scdr); |
| 2099 | defsubr (&Scar_safe); |
| 2100 | defsubr (&Scdr_safe); |
| 2101 | defsubr (&Ssetcar); |
| 2102 | defsubr (&Ssetcdr); |
| 2103 | defsubr (&Ssymbol_function); |
| 2104 | defsubr (&Sindirect_function); |
| 2105 | defsubr (&Ssymbol_plist); |
| 2106 | defsubr (&Ssymbol_name); |
| 2107 | defsubr (&Smakunbound); |
| 2108 | defsubr (&Sfmakunbound); |
| 2109 | defsubr (&Sboundp); |
| 2110 | defsubr (&Sfboundp); |
| 2111 | defsubr (&Sfset); |
| 2112 | defsubr (&Ssetplist); |
| 2113 | defsubr (&Ssymbol_value); |
| 2114 | defsubr (&Sset); |
| 2115 | defsubr (&Sdefault_boundp); |
| 2116 | defsubr (&Sdefault_value); |
| 2117 | defsubr (&Sset_default); |
| 2118 | defsubr (&Ssetq_default); |
| 2119 | defsubr (&Smake_variable_buffer_local); |
| 2120 | defsubr (&Smake_local_variable); |
| 2121 | defsubr (&Skill_local_variable); |
| 2122 | defsubr (&Saref); |
| 2123 | defsubr (&Saset); |
| 2124 | defsubr (&Sint_to_string); |
| 2125 | defsubr (&Sstring_to_number); |
| 2126 | defsubr (&Seqlsign); |
| 2127 | defsubr (&Slss); |
| 2128 | defsubr (&Sgtr); |
| 2129 | defsubr (&Sleq); |
| 2130 | defsubr (&Sgeq); |
| 2131 | defsubr (&Sneq); |
| 2132 | defsubr (&Szerop); |
| 2133 | defsubr (&Splus); |
| 2134 | defsubr (&Sminus); |
| 2135 | defsubr (&Stimes); |
| 2136 | defsubr (&Squo); |
| 2137 | defsubr (&Srem); |
| 2138 | defsubr (&Smax); |
| 2139 | defsubr (&Smin); |
| 2140 | defsubr (&Slogand); |
| 2141 | defsubr (&Slogior); |
| 2142 | defsubr (&Slogxor); |
| 2143 | defsubr (&Slsh); |
| 2144 | defsubr (&Sash); |
| 2145 | defsubr (&Sadd1); |
| 2146 | defsubr (&Ssub1); |
| 2147 | defsubr (&Slognot); |
| 2148 | } |
| 2149 | |
| 2150 | SIGTYPE |
| 2151 | arith_error (signo) |
| 2152 | int signo; |
| 2153 | { |
| 2154 | #ifdef USG |
| 2155 | /* USG systems forget handlers when they are used; |
| 2156 | must reestablish each time */ |
| 2157 | signal (signo, arith_error); |
| 2158 | #endif /* USG */ |
| 2159 | #ifdef VMS |
| 2160 | /* VMS systems are like USG. */ |
| 2161 | signal (signo, arith_error); |
| 2162 | #endif /* VMS */ |
| 2163 | #ifdef BSD4_1 |
| 2164 | sigrelse (SIGFPE); |
| 2165 | #else /* not BSD4_1 */ |
| 2166 | sigsetmask (SIGEMPTYMASK); |
| 2167 | #endif /* not BSD4_1 */ |
| 2168 | |
| 2169 | Fsignal (Qarith_error, Qnil); |
| 2170 | } |
| 2171 | |
| 2172 | init_data () |
| 2173 | { |
| 2174 | /* Don't do this if just dumping out. |
| 2175 | We don't want to call `signal' in this case |
| 2176 | so that we don't have trouble with dumping |
| 2177 | signal-delivering routines in an inconsistent state. */ |
| 2178 | #ifndef CANNOT_DUMP |
| 2179 | if (!initialized) |
| 2180 | return; |
| 2181 | #endif /* CANNOT_DUMP */ |
| 2182 | signal (SIGFPE, arith_error); |
| 2183 | |
| 2184 | #ifdef uts |
| 2185 | signal (SIGEMT, arith_error); |
| 2186 | #endif /* uts */ |
| 2187 | } |