| 1 | /* Fundamental definitions for GNU Emacs Lisp interpreter. |
| 2 | Copyright (C) 1985, 1986, 1987, 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 2, 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 | /* Define the fundamental Lisp data structures */ |
| 22 | |
| 23 | /* This is the set of Lisp data types */ |
| 24 | |
| 25 | enum Lisp_Type |
| 26 | { |
| 27 | /* Integer. XINT(obj) is the integer value. */ |
| 28 | Lisp_Int, |
| 29 | |
| 30 | /* Symbol. XSYMBOL (object) points to a struct Lisp_Symbol. */ |
| 31 | Lisp_Symbol, |
| 32 | |
| 33 | /* Marker (buffer ptr). XMARKER(object) points to a struct Lisp_Marker. */ |
| 34 | Lisp_Marker, |
| 35 | |
| 36 | /* String. XSTRING (object) points to a struct Lisp_String. |
| 37 | The length of the string, and its contents, are stored therein. */ |
| 38 | Lisp_String, |
| 39 | |
| 40 | /* Vector of Lisp objects. XVECTOR(object) points to a struct Lisp_Vector. |
| 41 | The length of the vector, and its contents, are stored therein. */ |
| 42 | Lisp_Vector, |
| 43 | |
| 44 | /* Cons. XCONS (object) points to a struct Lisp_Cons. */ |
| 45 | Lisp_Cons, |
| 46 | |
| 47 | /* Byte-compiled function. A vector of 4 to 6 elements which are the |
| 48 | arglist, bytecode-string, constant vector, stack size, |
| 49 | (optional) doc string, and (optional) interactive spec. */ |
| 50 | Lisp_Compiled, |
| 51 | |
| 52 | /* Editor buffer. XBUFFER(obj) points to a struct buffer. */ |
| 53 | Lisp_Buffer, |
| 54 | |
| 55 | /* Built-in function. XSUBR(obj) points to a struct Lisp_Subr |
| 56 | which describes how to call the function, and its documentation, |
| 57 | as well as pointing to the code. */ |
| 58 | Lisp_Subr, |
| 59 | |
| 60 | /* Internal value return by subroutines of read. |
| 61 | The user never sees this data type. |
| 62 | Its value is just a number. */ |
| 63 | Lisp_Internal, |
| 64 | |
| 65 | /* Forwarding pointer to an int variable. |
| 66 | This is allowed only in the value cell of a symbol, |
| 67 | and it means that the symbol's value really lives in the |
| 68 | specified int variable. |
| 69 | XINTPTR(obj) points to the int variable. */ |
| 70 | Lisp_Intfwd, |
| 71 | |
| 72 | /* Boolean forwarding pointer to an int variable. |
| 73 | This is like Lisp_Intfwd except that the ostensible |
| 74 | "value" of the symbol is t if the int variable is nonzero, |
| 75 | nil if it is zero. XINTPTR(obj) points to the int variable. */ |
| 76 | Lisp_Boolfwd, |
| 77 | |
| 78 | /* Object describing a connection to a subprocess. |
| 79 | It points to storage of type struct Lisp_Process */ |
| 80 | Lisp_Process, |
| 81 | |
| 82 | /* Forwarding pointer to a Lisp_Object variable. |
| 83 | This is allowed only in the value cell of a symbol, |
| 84 | and it means that the symbol's value really lives in the |
| 85 | specified variable. |
| 86 | XOBJFWD(obj) points to the Lisp_Object variable. */ |
| 87 | Lisp_Objfwd, |
| 88 | |
| 89 | /* Pointer to a vector-like object describing a display screen |
| 90 | on which Emacs can display a window hierarchy. */ |
| 91 | Lisp_Screen, |
| 92 | |
| 93 | /* Used when a FILE * value needs to be passed |
| 94 | in an argument of type Lisp_Object. |
| 95 | You must do *(FILE **) XPNTR(obj) to get the value. |
| 96 | The user will never see this data type. */ |
| 97 | Lisp_Internal_Stream, |
| 98 | |
| 99 | /* Used in a symbol value cell when the symbol's value is per-buffer. |
| 100 | The actual contents are a cons cell which starts a list like this: |
| 101 | (REALVALUE BUFFER CURRENT-ALIST-ELEMENT . DEFAULT-VALUE)). |
| 102 | |
| 103 | BUFFER is the last buffer for which this symbol's value was |
| 104 | made up to date. |
| 105 | |
| 106 | CURRENT-ALIST-ELEMENT is a pointer to an element of BUFFER's |
| 107 | b_local_var_alist, that being the element whose car is this variable. |
| 108 | Or it can be a pointer to the (CURRENT-ALIST-ELEMENT . DEFAULT-VALUE), if BUFFER |
| 109 | does not have an element in its alist for this variable |
| 110 | (that is, if BUFFER sees the default value of this variable). |
| 111 | |
| 112 | If we want to examine or set the value and BUFFER is current, |
| 113 | we just examine or set REALVALUE. |
| 114 | If BUFFER is not current, we store the current REALVALUE value into |
| 115 | CURRENT-ALIST-ELEMENT, then find the appropriate alist element for |
| 116 | the buffer now current and set up CURRENT-ALIST-ELEMENT. |
| 117 | Then we set REALVALUE out of that element, and store into BUFFER. |
| 118 | |
| 119 | If we are setting the variable and the current buffer does not have |
| 120 | an alist entry for this variable, an alist entry is created. |
| 121 | |
| 122 | Note that REALVALUE can be a forwarding pointer. |
| 123 | Each time it is examined or set, forwarding must be done. */ |
| 124 | Lisp_Buffer_Local_Value, |
| 125 | |
| 126 | /* Like Lisp_Buffer_Local_Value with one difference: |
| 127 | merely setting the variable while some buffer is current |
| 128 | does not cause that buffer to have its own local value of this variable. |
| 129 | Only make-local-variable does that. */ |
| 130 | Lisp_Some_Buffer_Local_Value, |
| 131 | |
| 132 | |
| 133 | /* Like Lisp_Objfwd except that value lives in a slot |
| 134 | in the current buffer. Value is byte index of slot within buffer */ |
| 135 | Lisp_Buffer_Objfwd, |
| 136 | |
| 137 | /* In symbol value cell, means var is unbound. |
| 138 | In symbol function cell, means function name is undefined. */ |
| 139 | Lisp_Void, |
| 140 | |
| 141 | /* Window used for Emacs display. |
| 142 | Data inside looks like a Lisp_Vector. */ |
| 143 | Lisp_Window, |
| 144 | |
| 145 | /* Used by save,set,restore-window-configuration */ |
| 146 | Lisp_Window_Configuration |
| 147 | |
| 148 | #ifdef LISP_FLOAT_TYPE |
| 149 | , |
| 150 | Lisp_Float |
| 151 | #endif /* LISP_FLOAT_TYPE */ |
| 152 | }; |
| 153 | |
| 154 | #ifndef NO_UNION_TYPE |
| 155 | |
| 156 | #ifndef BIG_ENDIAN |
| 157 | |
| 158 | /* Definition of Lisp_Object for little-endian machines. */ |
| 159 | |
| 160 | typedef |
| 161 | union Lisp_Object |
| 162 | { |
| 163 | /* Used for comparing two Lisp_Objects; |
| 164 | also, positive integers can be accessed fast this way. */ |
| 165 | int i; |
| 166 | |
| 167 | struct |
| 168 | { |
| 169 | int val: 24; |
| 170 | char type; |
| 171 | } s; |
| 172 | struct |
| 173 | { |
| 174 | unsigned int val: 24; |
| 175 | char type; |
| 176 | } u; |
| 177 | struct |
| 178 | { |
| 179 | unsigned int val: 24; |
| 180 | enum Lisp_Type type: 7; |
| 181 | /* The markbit is not really part of the value of a Lisp_Object, |
| 182 | and is always zero except during garbage collection. */ |
| 183 | unsigned int markbit: 1; |
| 184 | } gu; |
| 185 | } |
| 186 | Lisp_Object; |
| 187 | |
| 188 | #else /* If BIG_ENDIAN */ |
| 189 | |
| 190 | typedef |
| 191 | union Lisp_Object |
| 192 | { |
| 193 | /* Used for comparing two Lisp_Objects; |
| 194 | also, positive integers can be accessed fast this way. */ |
| 195 | int i; |
| 196 | |
| 197 | struct |
| 198 | { |
| 199 | char type; |
| 200 | int val: 24; |
| 201 | } s; |
| 202 | struct |
| 203 | { |
| 204 | char type; |
| 205 | unsigned int val: 24; |
| 206 | } u; |
| 207 | struct |
| 208 | { |
| 209 | /* The markbit is not really part of the value of a Lisp_Object, |
| 210 | and is always zero except during garbage collection. */ |
| 211 | unsigned int markbit: 1; |
| 212 | enum Lisp_Type type: 7; |
| 213 | unsigned int val: 24; |
| 214 | } gu; |
| 215 | } |
| 216 | Lisp_Object; |
| 217 | |
| 218 | #endif /* BIG_ENDIAN */ |
| 219 | |
| 220 | #endif /* NO_UNION_TYPE */ |
| 221 | |
| 222 | |
| 223 | /* If union type is not wanted, define Lisp_Object as just a number |
| 224 | and define the macros below to extract fields by shifting */ |
| 225 | |
| 226 | #ifdef NO_UNION_TYPE |
| 227 | |
| 228 | #define Lisp_Object int |
| 229 | |
| 230 | /* These values are overridden by the m- file on some machines. */ |
| 231 | #ifndef VALBITS |
| 232 | #define VALBITS 24 |
| 233 | #endif |
| 234 | |
| 235 | #ifndef GCTYPEBITS |
| 236 | #define GCTYPEBITS 7 |
| 237 | #endif |
| 238 | |
| 239 | #ifndef VALMASK |
| 240 | #define VALMASK ((1<<VALBITS) - 1) |
| 241 | #endif |
| 242 | #define GCTYPEMASK ((1<<GCTYPEBITS) - 1) |
| 243 | #define MARKBIT (1 << (VALBITS + GCTYPEBITS)) |
| 244 | |
| 245 | #endif /* NO_UNION_TYPE */ |
| 246 | \f |
| 247 | /* These macros extract various sorts of values from a Lisp_Object. |
| 248 | For example, if tem is a Lisp_Object whose type is Lisp_Cons, |
| 249 | XCONS (tem) is the struct Lisp_Cons * pointing to the memory for that cons. */ |
| 250 | |
| 251 | #ifdef NO_UNION_TYPE |
| 252 | |
| 253 | /* One need to override this if there must be high bits set in data space |
| 254 | (doing the result of the below & ((1 << (GCTYPE + 1)) - 1) would work |
| 255 | on all machines, but would penalise machines which don't need it) |
| 256 | */ |
| 257 | #ifndef XTYPE |
| 258 | #define XTYPE(a) ((enum Lisp_Type) ((a) >> VALBITS)) |
| 259 | #endif |
| 260 | |
| 261 | #ifndef XSETTYPE |
| 262 | #define XSETTYPE(a, b) ((a) = XUINT (a) | ((int)(b) << VALBITS)) |
| 263 | #endif |
| 264 | |
| 265 | /* Use XFASTINT for fast retrieval and storage of integers known |
| 266 | to be positive. This takes advantage of the fact that Lisp_Int is 0. */ |
| 267 | #define XFASTINT(a) (a) |
| 268 | |
| 269 | /* Extract the value of a Lisp_Object as a signed integer. */ |
| 270 | |
| 271 | #ifndef XINT /* Some machines need to do this differently. */ |
| 272 | #define XINT(a) (((a) << (INTBITS-VALBITS)) >> (INTBITS-VALBITS)) |
| 273 | #endif |
| 274 | |
| 275 | /* Extract the value as an unsigned integer. This is a basis |
| 276 | for extracting it as a pointer to a structure in storage. */ |
| 277 | |
| 278 | #ifndef XUINT |
| 279 | #define XUINT(a) ((a) & VALMASK) |
| 280 | #endif |
| 281 | |
| 282 | #ifndef XPNTR |
| 283 | #ifdef HAVE_SHM |
| 284 | /* In this representation, data is found in two widely separated segments. */ |
| 285 | extern int pure_size; |
| 286 | #define XPNTR(a) \ |
| 287 | (XUINT (a) | (XUINT (a) > pure_size ? DATA_SEG_BITS : PURE_SEG_BITS)) |
| 288 | #else /* not HAVE_SHM */ |
| 289 | #ifdef DATA_SEG_BITS |
| 290 | /* This case is used for the rt-pc. |
| 291 | In the diffs I was given, it checked for ptr = 0 |
| 292 | and did not adjust it in that case. |
| 293 | But I don't think that zero should ever be found |
| 294 | in a Lisp object whose data type says it points to something. */ |
| 295 | #define XPNTR(a) (XUINT (a) | DATA_SEG_BITS) |
| 296 | #else |
| 297 | #define XPNTR(a) XUINT (a) |
| 298 | #endif |
| 299 | #endif /* not HAVE_SHM */ |
| 300 | #endif /* no XPNTR */ |
| 301 | |
| 302 | #ifndef XSETINT |
| 303 | #define XSETINT(a, b) ((a) = ((a) & ~VALMASK) | ((b) & VALMASK)) |
| 304 | #endif |
| 305 | |
| 306 | #ifndef XSETUINT |
| 307 | #define XSETUINT(a, b) XSETINT (a, b) |
| 308 | #endif |
| 309 | |
| 310 | #ifndef XSETPNTR |
| 311 | #define XSETPNTR(a, b) XSETINT (a, b) |
| 312 | #endif |
| 313 | |
| 314 | #ifndef XSET |
| 315 | #define XSET(var, type, ptr) \ |
| 316 | ((var) = ((int)(type) << VALBITS) + ((int) (ptr) & VALMASK)) |
| 317 | #endif |
| 318 | |
| 319 | /* During garbage collection, XGCTYPE must be used for extracting types |
| 320 | so that the mark bit is ignored. XMARKBIT accesses the markbit. |
| 321 | Markbits are used only in particular slots of particular structure types. |
| 322 | Other markbits are always zero. |
| 323 | Outside of garbage collection, all mark bits are always zero. */ |
| 324 | |
| 325 | #ifndef XGCTYPE |
| 326 | #define XGCTYPE(a) ((enum Lisp_Type) (((a) >> VALBITS) & GCTYPEMASK)) |
| 327 | #endif |
| 328 | |
| 329 | #if VALBITS + GCTYPEBITS == INTBITS - 1 |
| 330 | /* Make XMARKBIT faster if mark bit is sign bit. */ |
| 331 | #ifndef XMARKBIT |
| 332 | #define XMARKBIT(a) ((a) < 0) |
| 333 | #endif |
| 334 | #endif /* markbit is sign bit */ |
| 335 | |
| 336 | #ifndef XMARKBIT |
| 337 | #define XMARKBIT(a) ((a) & MARKBIT) |
| 338 | #endif |
| 339 | |
| 340 | #ifndef XSETMARKBIT |
| 341 | #define XSETMARKBIT(a,b) ((a) = ((a) & ~MARKBIT) | ((b) ? MARKBIT : 0)) |
| 342 | #endif |
| 343 | |
| 344 | #ifndef XMARK |
| 345 | #define XMARK(a) ((a) |= MARKBIT) |
| 346 | #endif |
| 347 | |
| 348 | #ifndef XUNMARK |
| 349 | #define XUNMARK(a) ((a) &= ~MARKBIT) |
| 350 | #endif |
| 351 | |
| 352 | #endif /* NO_UNION_TYPE */ |
| 353 | |
| 354 | #ifndef NO_UNION_TYPE |
| 355 | |
| 356 | #define XTYPE(a) ((enum Lisp_Type) (a).u.type) |
| 357 | #define XSETTYPE(a, b) ((a).u.type = (char) (b)) |
| 358 | |
| 359 | /* Use XFASTINT for fast retrieval and storage of integers known |
| 360 | to be positive. This takes advantage of the fact that Lisp_Int is 0. */ |
| 361 | #define XFASTINT(a) ((a).i) |
| 362 | |
| 363 | #ifdef EXPLICIT_SIGN_EXTEND |
| 364 | /* Make sure we sign-extend; compilers have been known to fail to do so. */ |
| 365 | #define XINT(a) (((a).i << 8) >> 8) |
| 366 | #else |
| 367 | #define XINT(a) ((a).s.val) |
| 368 | #endif /* EXPLICIT_SIGN_EXTEND */ |
| 369 | |
| 370 | #define XUINT(a) ((a).u.val) |
| 371 | #define XPNTR(a) ((a).u.val) |
| 372 | #define XSETINT(a, b) ((a).s.val = (int) (b)) |
| 373 | #define XSETUINT(a, b) ((a).s.val = (int) (b)) |
| 374 | #define XSETPNTR(a, b) ((a).s.val = (int) (b)) |
| 375 | |
| 376 | #define XSET(var, vartype, ptr) \ |
| 377 | (((var).s.type = ((char) (vartype))), ((var).s.val = ((int) (ptr)))) |
| 378 | |
| 379 | /* During garbage collection, XGCTYPE must be used for extracting types |
| 380 | so that the mark bit is ignored. XMARKBIT access the markbit. |
| 381 | Markbits are used only in particular slots of particular structure types. |
| 382 | Other markbits are always zero. |
| 383 | Outside of garbage collection, all mark bits are always zero. */ |
| 384 | |
| 385 | #define XGCTYPE(a) ((a).gu.type) |
| 386 | #define XMARKBIT(a) ((a).gu.markbit) |
| 387 | #define XSETMARKBIT(a,b) (XMARKBIT(a) = (b)) |
| 388 | #define XMARK(a) (XMARKBIT(a) = 1) |
| 389 | #define XUNMARK(a) (XMARKBIT(a) = 0) |
| 390 | |
| 391 | #endif /* NO_UNION_TYPE */ |
| 392 | |
| 393 | |
| 394 | #define XCONS(a) ((struct Lisp_Cons *) XPNTR(a)) |
| 395 | #define XBUFFER(a) ((struct buffer *) XPNTR(a)) |
| 396 | #define XVECTOR(a) ((struct Lisp_Vector *) XPNTR(a)) |
| 397 | #define XSUBR(a) ((struct Lisp_Subr *) XPNTR(a)) |
| 398 | #define XSTRING(a) ((struct Lisp_String *) XPNTR(a)) |
| 399 | #define XSYMBOL(a) ((struct Lisp_Symbol *) XPNTR(a)) |
| 400 | #define XFUNCTION(a) ((Lisp_Object (*)()) XPNTR(a)) |
| 401 | #define XMARKER(a) ((struct Lisp_Marker *) XPNTR(a)) |
| 402 | #define XOBJFWD(a) ((Lisp_Object *) XPNTR(a)) |
| 403 | #define XINTPTR(a) ((int *) XPNTR(a)) |
| 404 | #define XWINDOW(a) ((struct window *) XPNTR(a)) |
| 405 | #define XPROCESS(a) ((struct Lisp_Process *) XPNTR(a)) |
| 406 | #define XFLOAT(a) ((struct Lisp_Float *) XPNTR(a)) |
| 407 | |
| 408 | #define XSETCONS(a, b) XSETPNTR(a, (int) (b)) |
| 409 | #define XSETBUFFER(a, b) XSETPNTR(a, (int) (b)) |
| 410 | #define XSETVECTOR(a, b) XSETPNTR(a, (int) (b)) |
| 411 | #define XSETSUBR(a, b) XSETPNTR(a, (int) (b)) |
| 412 | #define XSETSTRING(a, b) XSETPNTR(a, (int) (b)) |
| 413 | #define XSETSYMBOL(a, b) XSETPNTR(a, (int) (b)) |
| 414 | #define XSETFUNCTION(a, b) XSETPNTR(a, (int) (b)) |
| 415 | #define XSETMARKER(a, b) XSETPNTR(a, (int) (b)) |
| 416 | #define XSETOBJFWD(a, b) XSETPNTR(a, (int) (b)) |
| 417 | #define XSETINTPTR(a, b) XSETPNTR(a, (int) (b)) |
| 418 | #define XSETWINDOW(a, b) XSETPNTR(a, (int) (b)) |
| 419 | #define XSETPROCESS(a, b) XSETPNTR(a, (int) (b)) |
| 420 | #define XSETFLOAT(a, b) XSETPNTR(a, (int) (b)) |
| 421 | \f |
| 422 | /* In a cons, the markbit of the car is the gc mark bit */ |
| 423 | |
| 424 | struct Lisp_Cons |
| 425 | { |
| 426 | Lisp_Object car, cdr; |
| 427 | }; |
| 428 | |
| 429 | /* Like a cons, but records info on where the text lives that it was read from */ |
| 430 | /* This is not really in use now */ |
| 431 | |
| 432 | struct Lisp_Buffer_Cons |
| 433 | { |
| 434 | Lisp_Object car, cdr; |
| 435 | struct buffer *buffer; |
| 436 | int bufpos; |
| 437 | }; |
| 438 | |
| 439 | /* In a string or vector, the sign bit of the `size' is the gc mark bit */ |
| 440 | |
| 441 | struct Lisp_String |
| 442 | { |
| 443 | int size; |
| 444 | unsigned char data[1]; |
| 445 | }; |
| 446 | |
| 447 | struct Lisp_Vector |
| 448 | { |
| 449 | int size; |
| 450 | struct Lisp_Vector *next; |
| 451 | Lisp_Object contents[1]; |
| 452 | }; |
| 453 | |
| 454 | /* In a symbol, the markbit of the plist is used as the gc mark bit */ |
| 455 | |
| 456 | struct Lisp_Symbol |
| 457 | { |
| 458 | struct Lisp_String *name; |
| 459 | Lisp_Object value; |
| 460 | Lisp_Object function; |
| 461 | Lisp_Object plist; |
| 462 | struct Lisp_Symbol *next; /* -> next symbol in this obarray bucket */ |
| 463 | }; |
| 464 | |
| 465 | struct Lisp_Subr |
| 466 | { |
| 467 | Lisp_Object (*function) (); |
| 468 | short min_args, max_args; |
| 469 | char *symbol_name; |
| 470 | char *prompt; |
| 471 | char *doc; |
| 472 | }; |
| 473 | |
| 474 | /* In a marker, the markbit of the chain field is used as the gc mark bit */ |
| 475 | |
| 476 | struct Lisp_Marker |
| 477 | { |
| 478 | struct buffer *buffer; |
| 479 | Lisp_Object chain; |
| 480 | int bufpos; |
| 481 | int modified; |
| 482 | }; |
| 483 | |
| 484 | #ifdef LISP_FLOAT_TYPE |
| 485 | /* Optional Lisp floating point type */ |
| 486 | struct Lisp_Float |
| 487 | { |
| 488 | Lisp_Object type; /* essentially used for mark-bit |
| 489 | and chaining when on free-list */ |
| 490 | double data; |
| 491 | }; |
| 492 | #endif /* LISP_FLOAT_TYPE */ |
| 493 | |
| 494 | /* A character, declared with the following typedef, is a member |
| 495 | of some character set associated with the current buffer. */ |
| 496 | typedef unsigned char UCHAR; |
| 497 | |
| 498 | /* Meanings of slots in a Lisp_Compiled: */ |
| 499 | |
| 500 | #define COMPILED_ARGLIST 0 |
| 501 | #define COMPILED_BYTECODE 1 |
| 502 | #define COMPILED_CONSTANTS 2 |
| 503 | #define COMPILED_STACK_DEPTH 3 |
| 504 | #define COMPILED_DOC_STRING 4 |
| 505 | #define COMPILED_INTERACTIVE 5 |
| 506 | \f |
| 507 | /* Data type checking */ |
| 508 | |
| 509 | #define NILP(x) (XFASTINT (x) == XFASTINT (Qnil)) |
| 510 | |
| 511 | #ifdef LISP_FLOAT_TYPE |
| 512 | #define NUMBERP(x) (XTYPE (x) == Lisp_Int || XTYPE (x) == Lisp_Float) |
| 513 | #else |
| 514 | #define NUMBERP(x) (XTYPE (x) == Lisp_Int) |
| 515 | #endif |
| 516 | |
| 517 | /* #define LISTP(x) (XTYPE ((x)) == Lisp_Cons)*/ |
| 518 | #define CONSP(x) (XTYPE ((x)) == Lisp_Cons) |
| 519 | #define EQ(x, y) (XFASTINT (x) == XFASTINT (y)) |
| 520 | |
| 521 | |
| 522 | #define CHECK_LIST(x, i) \ |
| 523 | { if ((XTYPE ((x)) != Lisp_Cons) && !NILP (x)) x = wrong_type_argument (Qlistp, (x)); } |
| 524 | |
| 525 | #define CHECK_STRING(x, i) \ |
| 526 | { if (XTYPE ((x)) != Lisp_String) x = wrong_type_argument (Qstringp, (x)); } |
| 527 | |
| 528 | #define CHECK_CONS(x, i) \ |
| 529 | { if (XTYPE ((x)) != Lisp_Cons) x = wrong_type_argument (Qconsp, (x)); } |
| 530 | |
| 531 | #define CHECK_SYMBOL(x, i) \ |
| 532 | { if (XTYPE ((x)) != Lisp_Symbol) x = wrong_type_argument (Qsymbolp, (x)); } |
| 533 | |
| 534 | #define CHECK_VECTOR(x, i) \ |
| 535 | { if (XTYPE ((x)) != Lisp_Vector) x = wrong_type_argument (Qvectorp, (x)); } |
| 536 | |
| 537 | #define CHECK_BUFFER(x, i) \ |
| 538 | { if (XTYPE ((x)) != Lisp_Buffer) x = wrong_type_argument (Qbufferp, (x)); } |
| 539 | |
| 540 | #define CHECK_WINDOW(x, i) \ |
| 541 | { if (XTYPE ((x)) != Lisp_Window) x = wrong_type_argument (Qwindowp, (x)); } |
| 542 | |
| 543 | #define CHECK_PROCESS(x, i) \ |
| 544 | { if (XTYPE ((x)) != Lisp_Process) x = wrong_type_argument (Qprocessp, (x)); } |
| 545 | |
| 546 | #define CHECK_NUMBER(x, i) \ |
| 547 | { if (XTYPE ((x)) != Lisp_Int) x = wrong_type_argument (Qintegerp, (x)); } |
| 548 | |
| 549 | #define CHECK_NATNUM(x, i) \ |
| 550 | { if (XTYPE ((x)) != Lisp_Int || XINT ((x)) < 0) \ |
| 551 | x = wrong_type_argument (Qnatnump, (x)); } |
| 552 | |
| 553 | #define CHECK_MARKER(x, i) \ |
| 554 | { if (XTYPE ((x)) != Lisp_Marker) x = wrong_type_argument (Qmarkerp, (x)); } |
| 555 | |
| 556 | #define CHECK_NUMBER_COERCE_MARKER(x, i) \ |
| 557 | { if (XTYPE ((x)) == Lisp_Marker) XFASTINT (x) = marker_position (x); \ |
| 558 | else if (XTYPE ((x)) != Lisp_Int) x = wrong_type_argument (Qinteger_or_marker_p, (x)); } |
| 559 | |
| 560 | #ifdef LISP_FLOAT_TYPE |
| 561 | |
| 562 | #ifndef DBL_DIG |
| 563 | #define DBL_DIG 20 |
| 564 | #endif |
| 565 | |
| 566 | #define XFLOATINT(n) extract_float((n)) |
| 567 | |
| 568 | #define CHECK_FLOAT(x, i) \ |
| 569 | { if (XTYPE (x) != Lisp_Float) \ |
| 570 | x = wrong_type_argument (Qfloatp, (x)); } |
| 571 | |
| 572 | #define CHECK_NUMBER_OR_FLOAT(x, i) \ |
| 573 | { if (XTYPE (x) != Lisp_Float && XTYPE (x) != Lisp_Int) \ |
| 574 | x = wrong_type_argument (Qnumberp, (x)); } |
| 575 | |
| 576 | #define CHECK_NUMBER_OR_FLOAT_COERCE_MARKER(x, i) \ |
| 577 | { if (XTYPE (x) == Lisp_Marker) XFASTINT (x) = marker_position (x); \ |
| 578 | else if (XTYPE (x) != Lisp_Int && XTYPE (x) != Lisp_Float) \ |
| 579 | x = wrong_type_argument (Qnumber_or_marker_p, (x)); } |
| 580 | |
| 581 | #else /* Not LISP_FLOAT_TYPE */ |
| 582 | |
| 583 | #define CHECK_NUMBER_OR_FLOAT CHECK_NUMBER |
| 584 | |
| 585 | #define CHECK_NUMBER_OR_FLOAT_COERCE_MARKER CHECK_NUMBER_COERCE_MARKER |
| 586 | |
| 587 | #define XFLOATINT(n) XINT((n)) |
| 588 | #endif /* LISP_FLOAT_TYPE */ |
| 589 | |
| 590 | /* Cast pointers to this type to compare them. Some machines want int. */ |
| 591 | #ifndef PNTR_COMPARISON_TYPE |
| 592 | #define PNTR_COMPARISON_TYPE unsigned int |
| 593 | #endif |
| 594 | \f |
| 595 | /* Define a built-in function for calling from Lisp. |
| 596 | `lname' should be the name to give the function in Lisp, |
| 597 | as a null-terminated C string. |
| 598 | `fnname' should be the name of the function in C. |
| 599 | By convention, it starts with F. |
| 600 | `sname' should be the name for the C constant structure |
| 601 | that records information on this function for internal use. |
| 602 | By convention, it should be the same as `fnname' but with S instead of F. |
| 603 | It's too bad that C macros can't compute this from `fnname'. |
| 604 | `minargs' should be a number, the minimum number of arguments allowed. |
| 605 | `maxargs' should be a number, the maximum number of arguments allowed, |
| 606 | or else MANY or UNEVALLED. |
| 607 | MANY means pass a vector of evaluated arguments, |
| 608 | in the form of an integer number-of-arguments |
| 609 | followed by the address of a vector of Lisp_Objects |
| 610 | which contains the argument values. |
| 611 | UNEVALLED means pass the list of unevaluated arguments |
| 612 | `prompt' says how to read arguments for an interactive call. |
| 613 | This can be zero or a C string. |
| 614 | Zero means that interactive calls are not allowed. |
| 615 | A string is interpreted in a hairy way: |
| 616 | it should contain one line for each argument to be read, terminated by \n. |
| 617 | The first character of the line controls the type of parsing: |
| 618 | s -- read a string. |
| 619 | S -- read a symbol. |
| 620 | k -- read a key sequence and return it as a string. |
| 621 | a -- read a function name (symbol) with completion. |
| 622 | C -- read a command name (symbol) with completion. |
| 623 | v -- read a variable name (symbol) with completion. |
| 624 | b -- read a buffer name (a string) with completion. |
| 625 | B -- buffer name, may be existing buffer or may not be. |
| 626 | f -- read a file name, file must exist. |
| 627 | F -- read a file name, file need not exist. |
| 628 | n -- read a number. |
| 629 | c -- read a character and return it as a number. |
| 630 | p -- use the numeric value of the prefix argument. |
| 631 | P -- use raw value of prefix - can be nil, -, (NUMBER) or NUMBER. |
| 632 | x -- read a Lisp object from the minibuffer. |
| 633 | X -- read a Lisp form from the minibuffer and use its value. |
| 634 | A null string means call interactively with no arguments. |
| 635 | `doc' is documentation for the user. |
| 636 | */ |
| 637 | |
| 638 | #define DEFUN(lname, fnname, sname, minargs, maxargs, prompt, doc) \ |
| 639 | Lisp_Object fnname (); \ |
| 640 | struct Lisp_Subr sname = {fnname, minargs, maxargs, lname, prompt, 0}; \ |
| 641 | Lisp_Object fnname |
| 642 | |
| 643 | /* defsubr (Sname); |
| 644 | is how we define the symbol for function `name' at start-up time. */ |
| 645 | extern void defsubr (); |
| 646 | |
| 647 | #define MANY -2 |
| 648 | #define UNEVALLED -1 |
| 649 | |
| 650 | extern void defvar_lisp (); |
| 651 | extern void defvar_bool (); |
| 652 | extern void defvar_int (); |
| 653 | |
| 654 | /* Macros we use to define forwarded Lisp variables. |
| 655 | These are used in the syms_of_FILENAME functions. */ |
| 656 | |
| 657 | #define DEFVARLISP(lname, vname, doc) defvar_lisp (lname, vname) |
| 658 | #define DEFVARBOOL(lname, vname, doc) defvar_bool (lname, vname) |
| 659 | #define DEFVARINT(lname, vname, doc) defvar_int (lname, vname) |
| 660 | #define DEFVARPERBUFFER(lname, vname, doc) \ |
| 661 | defvar_per_buffer (lname, vname) |
| 662 | |
| 663 | #define DEFVAR_LISP(lname, vname, doc) defvar_lisp (lname, vname) |
| 664 | #define DEFVAR_LISP_NOPRO(lname, vname, doc) defvar_lisp_nopro (lname, vname) |
| 665 | #define DEFVAR_BOOL(lname, vname, doc) defvar_bool (lname, vname) |
| 666 | #define DEFVAR_INT(lname, vname, doc) defvar_int (lname, vname) |
| 667 | #define DEFVAR_PER_BUFFER(lname, vname, doc) \ |
| 668 | defvar_per_buffer (lname, vname) |
| 669 | \f |
| 670 | /* Structure for recording Lisp call stack for backtrace purposes */ |
| 671 | |
| 672 | struct specbinding |
| 673 | { |
| 674 | Lisp_Object symbol, old_value; |
| 675 | Lisp_Object (*func) (); |
| 676 | Lisp_Object unused; /* Dividing by 16 is faster than by 12 */ |
| 677 | }; |
| 678 | |
| 679 | extern struct specbinding *specpdl; |
| 680 | extern struct specbinding *specpdl_ptr; |
| 681 | extern int specpdl_size; |
| 682 | |
| 683 | struct handler |
| 684 | { |
| 685 | Lisp_Object handler; |
| 686 | Lisp_Object var; |
| 687 | int poll_suppress_count; /* No error should exit a piece of code |
| 688 | in which polling is suppressed. */ |
| 689 | struct catchtag *tag; |
| 690 | struct handler *next; |
| 691 | }; |
| 692 | |
| 693 | extern struct handler *handlerlist; |
| 694 | |
| 695 | extern struct catchtag *catchlist; |
| 696 | extern struct backtrace *backtrace_list; |
| 697 | |
| 698 | /* An address near the bottom of the stack. |
| 699 | Tells GC how to save a copy of the stack. */ |
| 700 | extern char *stack_bottom; |
| 701 | |
| 702 | /* Check quit-flag and quit if it is non-nil. */ |
| 703 | |
| 704 | #define QUIT \ |
| 705 | if (!NILP (Vquit_flag) && NILP (Vinhibit_quit)) \ |
| 706 | { Vquit_flag = Qnil; Fsignal (Qquit, Qnil); } |
| 707 | |
| 708 | /* Nonzero if ought to quit now. */ |
| 709 | |
| 710 | #define QUITP (!NILP (Vquit_flag) && NILP (Vinhibit_quit)) |
| 711 | \f |
| 712 | /* 1 if CH is upper case. */ |
| 713 | |
| 714 | #define UPPERCASEP(CH) \ |
| 715 | (XSTRING (current_buffer->downcase_table)->data[CH] != (CH)) |
| 716 | |
| 717 | /* 1 if CH is lower case. */ |
| 718 | |
| 719 | #define LOWERCASEP(CH) \ |
| 720 | (!UPPERCASEP (CH) \ |
| 721 | && XSTRING (current_buffer->upcase_table)->data[CH] != (CH)) |
| 722 | |
| 723 | /* 1 if CH is neither upper nor lower case. */ |
| 724 | |
| 725 | #define NOCASEP(CH) (XSTRING (current_buffer->upcase_table)->data[CH] == (CH)) |
| 726 | |
| 727 | /* Upcase a character, or make no change if that cannot be done. */ |
| 728 | |
| 729 | #define UPCASE(CH) \ |
| 730 | (XSTRING (current_buffer->downcase_table)->data[CH] == (CH) \ |
| 731 | ? UPCASE1 (CH) : (CH)) |
| 732 | |
| 733 | /* Upcase a character known to be not upper case. */ |
| 734 | |
| 735 | #define UPCASE1(CH) (XSTRING (current_buffer->upcase_table)->data[CH]) |
| 736 | |
| 737 | /* Downcase a character, or make no change if that cannot be done. */ |
| 738 | |
| 739 | #define DOWNCASE(CH) (XSTRING (current_buffer->downcase_table)->data[CH]) |
| 740 | |
| 741 | /* Current buffer's map from characters to lower-case characters. */ |
| 742 | |
| 743 | #define DOWNCASE_TABLE XSTRING (current_buffer->downcase_table)->data |
| 744 | |
| 745 | /* Table mapping each char to the next char with the same lowercase version. |
| 746 | This mapping is a no-op only for characters that don't have case. */ |
| 747 | #define UPCASE_TABLE XSTRING (current_buffer->upcase_table)->data |
| 748 | |
| 749 | extern Lisp_Object Vascii_downcase_table, Vascii_upcase_table; |
| 750 | \f |
| 751 | /* number of bytes of structure consed since last GC */ |
| 752 | |
| 753 | extern int consing_since_gc; |
| 754 | |
| 755 | /* threshold for doing another gc */ |
| 756 | |
| 757 | extern int gc_cons_threshold; |
| 758 | |
| 759 | /* Structure for recording stack slots that need marking */ |
| 760 | |
| 761 | /* This is a chain of structures, each of which points at a Lisp_Object variable |
| 762 | whose value should be marked in garbage collection. |
| 763 | Normally every link of the chain is an automatic variable of a function, |
| 764 | and its `val' points to some argument or local variable of the function. |
| 765 | On exit to the function, the chain is set back to the value it had on entry. |
| 766 | This way, no link remains in the chain when the stack frame containing the link disappears. |
| 767 | |
| 768 | Every function that can call Feval must protect in this fashion all |
| 769 | Lisp_Object variables whose contents will be used again. */ |
| 770 | |
| 771 | extern struct gcpro *gcprolist; |
| 772 | |
| 773 | struct gcpro |
| 774 | { |
| 775 | struct gcpro *next; |
| 776 | Lisp_Object *var; /* Address of first protected variable */ |
| 777 | int nvars; /* Number of consecutive protected variables */ |
| 778 | }; |
| 779 | |
| 780 | #define GCPRO1(varname) \ |
| 781 | {gcpro1.next = gcprolist; gcpro1.var = &varname; gcpro1.nvars = 1; \ |
| 782 | gcprolist = &gcpro1; } |
| 783 | |
| 784 | #define GCPRO2(varname1, varname2) \ |
| 785 | {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \ |
| 786 | gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \ |
| 787 | gcprolist = &gcpro2; } |
| 788 | |
| 789 | #define GCPRO3(varname1, varname2, varname3) \ |
| 790 | {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \ |
| 791 | gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \ |
| 792 | gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \ |
| 793 | gcprolist = &gcpro3; } |
| 794 | |
| 795 | #define GCPRO4(varname1, varname2, varname3, varname4) \ |
| 796 | {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \ |
| 797 | gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \ |
| 798 | gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \ |
| 799 | gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \ |
| 800 | gcprolist = &gcpro4; } |
| 801 | |
| 802 | /* Call staticpro (&var) to protect static variable `var'. */ |
| 803 | |
| 804 | void staticpro(); |
| 805 | |
| 806 | #define UNGCPRO (gcprolist = gcpro1.next) |
| 807 | |
| 808 | /* Evaluate expr, UNGCPRO, and then return the value of expr. */ |
| 809 | #define RETURN_UNGCPRO(expr) \ |
| 810 | do \ |
| 811 | { \ |
| 812 | Lisp_Object ret_ungc_val; \ |
| 813 | ret_ungc_val = (expr); \ |
| 814 | UNGCPRO; \ |
| 815 | return ret_ungc_val; \ |
| 816 | } \ |
| 817 | while (0) |
| 818 | \f |
| 819 | /* Defined in data.c */ |
| 820 | extern Lisp_Object Qnil, Qt, Qquote, Qlambda, Qsubr, Qunbound; |
| 821 | extern Lisp_Object Qerror_conditions, Qerror_message, Qtop_level; |
| 822 | extern Lisp_Object Qerror, Qquit, Qwrong_type_argument, Qargs_out_of_range; |
| 823 | extern Lisp_Object Qvoid_variable, Qvoid_function; |
| 824 | extern Lisp_Object Qsetting_constant, Qinvalid_read_syntax; |
| 825 | extern Lisp_Object Qinvalid_function, Qwrong_number_of_arguments, Qno_catch; |
| 826 | extern Lisp_Object Qend_of_file, Qarith_error; |
| 827 | extern Lisp_Object Qbeginning_of_buffer, Qend_of_buffer, Qbuffer_read_only; |
| 828 | |
| 829 | extern Lisp_Object Qintegerp, Qnatnump, Qsymbolp, Qlistp, Qconsp; |
| 830 | extern Lisp_Object Qstringp, Qarrayp, Qsequencep, Qbufferp; |
| 831 | extern Lisp_Object Qchar_or_string_p, Qmarkerp, Qvectorp; |
| 832 | extern Lisp_Object Qinteger_or_marker_p, Qboundp, Qfboundp; |
| 833 | extern Lisp_Object Qcdr; |
| 834 | |
| 835 | #ifdef LISP_FLOAT_TYPE |
| 836 | extern Lisp_Object Qfloatp, Qinteger_or_floatp, Qinteger_or_float_or_marker_p; |
| 837 | #endif /* LISP_FLOAT_TYPE */ |
| 838 | |
| 839 | extern Lisp_Object Qscreenp; |
| 840 | |
| 841 | extern Lisp_Object Feq (), Fnull (), Flistp (), Fconsp (), Fatom (), Fnlistp (); |
| 842 | extern Lisp_Object Fintegerp (), Fnatnump (), Fsymbolp (); |
| 843 | extern Lisp_Object Fvectorp (), Fstringp (), Farrayp (), Fsequencep (); |
| 844 | extern Lisp_Object Fbufferp (), Fmarkerp (), Fsubrp (), Fchar_or_string_p (); |
| 845 | extern Lisp_Object Finteger_or_marker_p (); |
| 846 | #ifdef LISP_FLOAT_TYPE |
| 847 | extern Lisp_Object Ffloatp(), Finteger_or_floatp(); |
| 848 | extern Lisp_Object Finteger_or_float_or_marker_p(), Ftruncate(); |
| 849 | #endif /* LISP_FLOAT_TYPE */ |
| 850 | |
| 851 | extern Lisp_Object Fcar (), Fcar_safe(), Fcdr (), Fcdr_safe(); |
| 852 | extern Lisp_Object Fsetcar (), Fsetcdr (); |
| 853 | extern Lisp_Object Fboundp (), Ffboundp (), Fmakunbound (), Ffmakunbound (); |
| 854 | extern Lisp_Object Fsymbol_function (), Fsymbol_plist (), Fsymbol_name (); |
| 855 | extern Lisp_Object indirect_function (), Findirect_function (); |
| 856 | extern Lisp_Object Ffset (), Fsetplist (); |
| 857 | extern Lisp_Object Fsymbol_value (), find_symbol_value (), Fset (); |
| 858 | extern Lisp_Object Fdefault_value (), Fset_default (); |
| 859 | |
| 860 | extern Lisp_Object Faref (), Faset (), Farray_length (); |
| 861 | |
| 862 | extern Lisp_Object Fstring_to_int (), Fint_to_string (); |
| 863 | extern Lisp_Object Feqlsign (), Fgtr (), Flss (), Fgeq (), Fleq (), Fneq (), Fzerop (); |
| 864 | extern Lisp_Object Fplus (), Fminus (), Ftimes (), Fquo (), Frem (), Fmax (), Fmin (); |
| 865 | extern Lisp_Object Flogand (), Flogior (), Flogxor (), Flognot (), Flsh (), Fash (); |
| 866 | extern Lisp_Object Fadd1 (), Fsub1 (); |
| 867 | |
| 868 | extern Lisp_Object make_number (); |
| 869 | extern void args_out_of_range (); |
| 870 | extern void args_out_of_range_3 (); |
| 871 | extern Lisp_Object wrong_type_argument (); |
| 872 | #ifdef LISP_FLOAT_TYPE |
| 873 | extern Lisp_Object Ffloat_to_int(), Fint_to_float(); |
| 874 | extern double extract_float(); |
| 875 | #endif /* LISP_FLOAT_TYPE */ |
| 876 | |
| 877 | /* Defined in fns.c */ |
| 878 | extern Lisp_Object Qstring_lessp; |
| 879 | extern Lisp_Object Vfeatures; |
| 880 | extern Lisp_Object Fidentity (), Frandom (); |
| 881 | extern Lisp_Object Flength (); |
| 882 | extern Lisp_Object Fappend (), Fconcat (), Fvconcat (), Fcopy_sequence (); |
| 883 | extern Lisp_Object Fsubstring (); |
| 884 | extern Lisp_Object Fnthcdr (), Fmemq (), Fassq (), Fassoc (); |
| 885 | extern Lisp_Object Frassq (), Fdelq (), Fsort (); |
| 886 | extern Lisp_Object Freverse (), Fnreverse (), Fget (), Fput (), Fequal (); |
| 887 | extern Lisp_Object Ffillarray (), Fnconc (), Fmapcar (), Fmapconcat (); |
| 888 | extern Lisp_Object Fy_or_n_p (), do_yes_or_no_p (); |
| 889 | extern Lisp_Object Ffeaturep (), Frequire () , Fprovide (); |
| 890 | extern Lisp_Object concat2 (), nconc2 (); |
| 891 | extern Lisp_Object assq_no_quit (); |
| 892 | |
| 893 | /* Defined in alloc.c */ |
| 894 | extern Lisp_Object Vpurify_flag; |
| 895 | extern Lisp_Object Fcons (), Flist(), Fmake_list (); |
| 896 | extern Lisp_Object Fmake_vector (), Fvector (), Fmake_symbol (), Fmake_marker (); |
| 897 | extern Lisp_Object Fmake_string (), build_string (), make_string (); |
| 898 | extern Lisp_Object make_array (), make_uninit_string (); |
| 899 | extern Lisp_Object Fpurecopy (), make_pure_string (); |
| 900 | extern Lisp_Object pure_cons (), make_pure_vector (); |
| 901 | extern Lisp_Object Fgarbage_collect (); |
| 902 | |
| 903 | /* Defined in print.c */ |
| 904 | extern Lisp_Object Vprin1_to_string_buffer; |
| 905 | extern Lisp_Object Fprin1 (), Fprin1_to_string (), Fprinc (); |
| 906 | extern Lisp_Object Fterpri (), Fprint (); |
| 907 | extern Lisp_Object Vstandard_output, Qstandard_output; |
| 908 | extern Lisp_Object Qexternal_debugging_output; |
| 909 | extern void temp_output_buffer_setup (), temp_output_buffer_show (); |
| 910 | extern int print_level, print_escape_newlines; |
| 911 | extern Lisp_Object Qprint_escape_newlines; |
| 912 | |
| 913 | /* Defined in lread.c */ |
| 914 | extern Lisp_Object Qvariable_documentation, Qstandard_input; |
| 915 | extern Lisp_Object Vobarray, Vstandard_input; |
| 916 | extern Lisp_Object Fread (), Fread_from_string (); |
| 917 | extern Lisp_Object Fintern (), Fintern_soft (), Fload (); |
| 918 | extern Lisp_Object Fget_file_char (), Fread_char (); |
| 919 | extern Lisp_Object Feval_current_buffer (), Feval_region (); |
| 920 | extern Lisp_Object intern (), oblookup (); |
| 921 | |
| 922 | /* Defined in eval.c */ |
| 923 | extern Lisp_Object Qautoload, Qexit, Qinteractive, Qcommandp, Qdefun, Qmacro; |
| 924 | extern Lisp_Object Vinhibit_quit, Qinhibit_quit, Vquit_flag; |
| 925 | extern Lisp_Object Vmocklisp_arguments, Qmocklisp, Qmocklisp_arguments; |
| 926 | extern Lisp_Object Vautoload_queue; |
| 927 | extern Lisp_Object Vrun_hooks; |
| 928 | extern Lisp_Object Fand (), For (), Fif (), Fprogn (), Fprog1 (), Fprog2 (); |
| 929 | extern Lisp_Object Fsetq (), Fquote (); |
| 930 | extern Lisp_Object Fuser_variable_p (), Finteractive_p (); |
| 931 | extern Lisp_Object Fdefun (), Flet (), FletX (), Fwhile (); |
| 932 | extern Lisp_Object Fcatch (), Fthrow (), Funwind_protect (); |
| 933 | extern Lisp_Object Fcondition_case (), Fsignal (); |
| 934 | extern Lisp_Object Ffunction_type (), Fautoload (), Fcommandp (); |
| 935 | extern Lisp_Object Feval (), Fapply (), Ffuncall (); |
| 936 | extern Lisp_Object Fglobal_set (), Fglobal_value (), Fbacktrace (); |
| 937 | extern Lisp_Object apply1 (), call0 (), call1 (), call2 (), call3 (); |
| 938 | extern Lisp_Object apply_lambda (); |
| 939 | extern Lisp_Object internal_catch (); |
| 940 | extern Lisp_Object internal_condition_case (); |
| 941 | extern Lisp_Object unbind_to (); |
| 942 | extern void error (); |
| 943 | extern Lisp_Object un_autoload (); |
| 944 | |
| 945 | /* Defined in editfns.c */ |
| 946 | extern Lisp_Object Vprefix_arg, Qminus, Vcurrent_prefix_arg; |
| 947 | extern Lisp_Object Fgoto_char (); |
| 948 | extern Lisp_Object Fpoint_min_marker (), Fpoint_max_marker (); |
| 949 | extern Lisp_Object Fpoint_min (), Fpoint_max (); |
| 950 | extern Lisp_Object Fpoint (), Fpoint_marker (), Fmark_marker (); |
| 951 | extern Lisp_Object Ffollowing_char (), Fprevious_char (), Fchar_after (); |
| 952 | extern Lisp_Object Finsert (); |
| 953 | extern Lisp_Object Feolp (), Feobp (), Fbolp (), Fbobp (); |
| 954 | extern Lisp_Object Fformat (), format1 (); |
| 955 | extern Lisp_Object make_buffer_string (), Fbuffer_substring (); |
| 956 | extern Lisp_Object Fbuffer_string (); |
| 957 | extern Lisp_Object Fstring_equal (), Fstring_lessp (), Fbuffer_substring_lessp (); |
| 958 | extern Lisp_Object save_excursion_save (), save_restriction_save (); |
| 959 | extern Lisp_Object save_excursion_restore (), save_restriction_restore (); |
| 960 | extern Lisp_Object Fchar_to_string (); |
| 961 | |
| 962 | /* defined in buffer.c */ |
| 963 | extern Lisp_Object Vbuffer_alist; |
| 964 | extern Lisp_Object Fget_buffer (), Fget_buffer_create (), Fset_buffer (); |
| 965 | extern Lisp_Object Fbarf_if_buffer_read_only (); |
| 966 | extern Lisp_Object Fcurrent_buffer (), Fswitch_to_buffer (), Fpop_to_buffer (); |
| 967 | extern Lisp_Object Fother_buffer (); |
| 968 | extern struct buffer *all_buffers; |
| 969 | |
| 970 | /* defined in marker.c */ |
| 971 | |
| 972 | extern Lisp_Object Fmarker_position (), Fmarker_buffer (); |
| 973 | extern Lisp_Object Fcopy_marker (); |
| 974 | |
| 975 | /* Defined in fileio.c */ |
| 976 | |
| 977 | extern Lisp_Object Qfile_error; |
| 978 | extern Lisp_Object Ffile_name_as_directory (); |
| 979 | extern Lisp_Object Fexpand_file_name (), Ffile_name_nondirectory (); |
| 980 | extern Lisp_Object Fsubstitute_in_file_name (); |
| 981 | extern Lisp_Object Ffile_symlink_p (); |
| 982 | |
| 983 | /* Defined in abbrev.c */ |
| 984 | |
| 985 | extern Lisp_Object Vfundamental_mode_abbrev_table; |
| 986 | |
| 987 | /* defined in search.c */ |
| 988 | extern Lisp_Object Fstring_match (); |
| 989 | extern Lisp_Object Fscan_buffer (); |
| 990 | |
| 991 | /* defined in minibuf.c */ |
| 992 | |
| 993 | extern Lisp_Object last_minibuf_string; |
| 994 | extern Lisp_Object read_minibuf (), Fcompleting_read (); |
| 995 | extern Lisp_Object Fread_from_minibuffer (); |
| 996 | extern Lisp_Object Fread_variable (), Fread_buffer (), Fread_key_sequence (); |
| 997 | extern Lisp_Object Fread_minibuffer (), Feval_minibuffer (); |
| 998 | extern Lisp_Object Fread_string (), Fread_file_name (); |
| 999 | extern Lisp_Object Fread_no_blanks_input (); |
| 1000 | |
| 1001 | /* Defined in callint.c */ |
| 1002 | |
| 1003 | extern Lisp_Object Vcommand_history; |
| 1004 | extern Lisp_Object Qcall_interactively; |
| 1005 | extern Lisp_Object Fcall_interactively (); |
| 1006 | extern Lisp_Object Fprefix_numeric_value (); |
| 1007 | |
| 1008 | /* defined in casefiddle.c */ |
| 1009 | |
| 1010 | extern Lisp_Object Fdowncase (), Fupcase (), Fcapitalize (); |
| 1011 | |
| 1012 | /* defined in keyboard.c */ |
| 1013 | |
| 1014 | extern Lisp_Object Qdisabled; |
| 1015 | extern Lisp_Object Vhelp_form, Vtop_level; |
| 1016 | extern Lisp_Object Fdiscard_input (), Frecursive_edit (); |
| 1017 | extern Lisp_Object Fcommand_execute (), Finput_pending_p (); |
| 1018 | |
| 1019 | /* defined in keymap.c */ |
| 1020 | |
| 1021 | extern Lisp_Object Qkeymap; |
| 1022 | extern Lisp_Object current_global_map; |
| 1023 | extern Lisp_Object Fkey_description (), Fsingle_key_description (); |
| 1024 | extern Lisp_Object Fwhere_is_internal (); |
| 1025 | extern Lisp_Object access_keymap (), store_in_keymap (); |
| 1026 | extern Lisp_Object get_keyelt (), get_keymap(); |
| 1027 | |
| 1028 | /* defined in indent.c */ |
| 1029 | extern Lisp_Object Fvertical_motion (), Findent_to (), Fcurrent_column (); |
| 1030 | |
| 1031 | /* defined in window.c */ |
| 1032 | extern Lisp_Object Qwindowp; |
| 1033 | extern Lisp_Object Fget_buffer_window (); |
| 1034 | extern Lisp_Object Fsave_window_excursion (); |
| 1035 | extern Lisp_Object Fset_window_configuration (), Fcurrent_window_configuration (); |
| 1036 | extern Lisp_Object Fcoordinates_in_window_p (); |
| 1037 | extern Lisp_Object Fwindow_at (); |
| 1038 | |
| 1039 | /* defined in screen.c */ |
| 1040 | extern Lisp_Object Fscreenp (); |
| 1041 | extern Lisp_Object Fselect_screen (); |
| 1042 | extern Lisp_Object Ffocus_screen (); |
| 1043 | extern Lisp_Object Funfocus_screen (); |
| 1044 | extern Lisp_Object Fselected_screen (); |
| 1045 | extern Lisp_Object Fwindow_screen (); |
| 1046 | extern Lisp_Object Fscreen_root_window (); |
| 1047 | extern Lisp_Object Fscreen_selected_window (); |
| 1048 | extern Lisp_Object Fscreen_list (); |
| 1049 | extern Lisp_Object Fnext_screen (); |
| 1050 | extern Lisp_Object Fdelete_screen (); |
| 1051 | extern Lisp_Object Fread_mouse_position (); |
| 1052 | extern Lisp_Object Fset_mouse_position (); |
| 1053 | extern Lisp_Object Fmake_screen_visible (); |
| 1054 | extern Lisp_Object Fmake_screen_invisible (); |
| 1055 | extern Lisp_Object Ficonify_screen (); |
| 1056 | extern Lisp_Object Fdeiconify_screen (); |
| 1057 | extern Lisp_Object Fscreen_visible_p (); |
| 1058 | extern Lisp_Object Fvisible_screen_list (); |
| 1059 | extern Lisp_Object Fscreen_parameters (); |
| 1060 | extern Lisp_Object Fmodify_screen_parameters (); |
| 1061 | extern Lisp_Object Fscreen_pixel_size (); |
| 1062 | extern Lisp_Object Fscreen_height (); |
| 1063 | extern Lisp_Object Fscreen_width (); |
| 1064 | extern Lisp_Object Fset_screen_height (); |
| 1065 | extern Lisp_Object Fset_screen_width (); |
| 1066 | extern Lisp_Object Fset_screen_size (); |
| 1067 | extern Lisp_Object Fset_screen_position (); |
| 1068 | #ifndef HAVE_X11 |
| 1069 | extern Lisp_Object Frubber_band_rectangle (); |
| 1070 | #endif /* HAVE_X11 */ |
| 1071 | |
| 1072 | /* defined in emacs.c */ |
| 1073 | extern Lisp_Object decode_env_path (); |
| 1074 | /* Nonzero means don't do interactive redisplay and don't change tty modes */ |
| 1075 | extern int noninteractive; |
| 1076 | /* Nonzero means don't do use window-system-specific display code */ |
| 1077 | extern int inhibit_window_system; |
| 1078 | |
| 1079 | /* defined in process.c */ |
| 1080 | extern Lisp_Object Fget_process (), Fget_buffer_process (), Fprocessp (); |
| 1081 | extern Lisp_Object Fprocess_status (), Fkill_process (); |
| 1082 | |
| 1083 | /* defined in callproc.c */ |
| 1084 | extern Lisp_Object Vexec_path, Vexec_directory, Vdata_directory; |
| 1085 | |
| 1086 | /* defined in doc.c */ |
| 1087 | extern Lisp_Object Vdoc_file_name; |
| 1088 | extern Lisp_Object Fsubstitute_command_keys (); |
| 1089 | extern Lisp_Object Fdocumentation (), Fdocumentation_property (); |
| 1090 | |
| 1091 | /* defined in bytecode.c */ |
| 1092 | extern Lisp_Object Qbytecode; |
| 1093 | |
| 1094 | /* defined in macros.c */ |
| 1095 | extern Lisp_Object Qexecute_kbd_macro; |
| 1096 | extern Lisp_Object Fexecute_kbd_macro (); |
| 1097 | |
| 1098 | /* Nonzero means Emacs has already been initialized. |
| 1099 | Used during startup to detect startup of dumped Emacs. */ |
| 1100 | extern int initialized; |
| 1101 | |
| 1102 | extern int immediate_quit; /* Nonzero means ^G can quit instantly */ |
| 1103 | |
| 1104 | extern void debugger (); |
| 1105 | |
| 1106 | extern char *malloc (), *realloc (), *getenv (), *ctime (), *getwd (); |
| 1107 | extern long *xmalloc (), *xrealloc (); |
| 1108 | |
| 1109 | extern char *egetenv (); |