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3cfe6dfd | 1 | /* Fundamental definitions for GNU Emacs Lisp interpreter. |
4746118a | 2 | Copyright (C) 1985, 1986, 1987, 1992 Free Software Foundation, Inc. |
3cfe6dfd JB |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
4746118a | 8 | the Free Software Foundation; either version 2, or (at your option) |
3cfe6dfd JB |
9 | any later version. |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
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. */ | |
e065a56e | 272 | #define XINT(a) (((a) << (INTBITS-VALBITS)) >> (INTBITS-VALBITS)) |
3cfe6dfd JB |
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. */ | |
29eab336 | 285 | extern int pure_size; |
3cfe6dfd | 286 | #define XPNTR(a) \ |
29eab336 | 287 | (XUINT (a) | (XUINT (a) > pure_size ? DATA_SEG_BITS : PURE_SEG_BITS)) |
3cfe6dfd JB |
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 | ||
efb859b4 | 509 | #define NILP(x) (XFASTINT (x) == XFASTINT (Qnil)) |
3cfe6dfd | 510 | |
4746118a JB |
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 | ||
3cfe6dfd JB |
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 | ||
4746118a | 521 | |
3cfe6dfd | 522 | #define CHECK_LIST(x, i) \ |
efb859b4 | 523 | { if ((XTYPE ((x)) != Lisp_Cons) && !NILP (x)) x = wrong_type_argument (Qlistp, (x)); } |
3cfe6dfd JB |
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 (Qinteger_or_floatp, (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 (Qinteger_or_float_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 | ||
3cfe6dfd JB |
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 \ | |
efb859b4 | 705 | if (!NILP (Vquit_flag) && NILP (Vinhibit_quit)) \ |
3cfe6dfd JB |
706 | { Vquit_flag = Qnil; Fsignal (Qquit, Qnil); } |
707 | ||
708 | /* Nonzero if ought to quit now. */ | |
709 | ||
efb859b4 | 710 | #define QUITP (!NILP (Vquit_flag) && NILP (Vinhibit_quit)) |
3cfe6dfd JB |
711 | \f |
712 | /* 1 if CH is upper case. */ | |
713 | ||
7b15897a JB |
714 | #define UPPERCASEP(CH) \ |
715 | (XSTRING (current_buffer->downcase_table)->data[CH] != (CH)) | |
3cfe6dfd JB |
716 | |
717 | /* 1 if CH is lower case. */ | |
718 | ||
719 | #define LOWERCASEP(CH) \ | |
7b15897a JB |
720 | (!UPPERCASEP (CH) \ |
721 | && XSTRING (current_buffer->upcase_table)->data[CH] != (CH)) | |
3cfe6dfd JB |
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 | ||
7b15897a JB |
729 | #define UPCASE(CH) \ |
730 | (XSTRING (current_buffer->downcase_table)->data[CH] == (CH) \ | |
731 | ? UPCASE1 (CH) : (CH)) | |
3cfe6dfd JB |
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 Ffset (), Fsetplist (); | |
760cbdd3 | 856 | extern Lisp_Object Fsymbol_value (), find_symbol_value (), Fset (); |
3cfe6dfd JB |
857 | extern Lisp_Object Fdefault_value (), Fset_default (); |
858 | ||
859 | extern Lisp_Object Faref (), Faset (), Farray_length (); | |
860 | ||
861 | extern Lisp_Object Fstring_to_int (), Fint_to_string (); | |
862 | extern Lisp_Object Feqlsign (), Fgtr (), Flss (), Fgeq (), Fleq (), Fneq (), Fzerop (); | |
863 | extern Lisp_Object Fplus (), Fminus (), Ftimes (), Fquo (), Frem (), Fmax (), Fmin (); | |
864 | extern Lisp_Object Flogand (), Flogior (), Flogxor (), Flognot (), Flsh (), Fash (); | |
865 | extern Lisp_Object Fadd1 (), Fsub1 (); | |
866 | ||
867 | extern Lisp_Object make_number (); | |
868 | extern void args_out_of_range (); | |
869 | extern void args_out_of_range_3 (); | |
870 | extern Lisp_Object wrong_type_argument (); | |
871 | #ifdef LISP_FLOAT_TYPE | |
872 | extern Lisp_Object Ffloat_to_int(), Fint_to_float(); | |
873 | extern double extract_float(); | |
874 | #endif /* LISP_FLOAT_TYPE */ | |
875 | ||
876 | /* Defined in fns.c */ | |
877 | extern Lisp_Object Qstring_lessp; | |
878 | extern Lisp_Object Vfeatures; | |
879 | extern Lisp_Object Fidentity (), Frandom (); | |
880 | extern Lisp_Object Flength (); | |
881 | extern Lisp_Object Fappend (), Fconcat (), Fvconcat (), Fcopy_sequence (); | |
882 | extern Lisp_Object Fsubstring (); | |
883 | extern Lisp_Object Fnthcdr (), Fmemq (), Fassq (), Fassoc (); | |
884 | extern Lisp_Object Frassq (), Fdelq (), Fsort (); | |
885 | extern Lisp_Object Freverse (), Fnreverse (), Fget (), Fput (), Fequal (); | |
886 | extern Lisp_Object Ffillarray (), Fnconc (), Fmapcar (), Fmapconcat (); | |
887 | extern Lisp_Object Fy_or_n_p (), do_yes_or_no_p (); | |
888 | extern Lisp_Object Ffeaturep (), Frequire () , Fprovide (); | |
889 | extern Lisp_Object concat2 (), nconc2 (); | |
890 | extern Lisp_Object assq_no_quit (); | |
891 | ||
892 | /* Defined in alloc.c */ | |
893 | extern Lisp_Object Vpurify_flag; | |
894 | extern Lisp_Object Fcons (), Flist(), Fmake_list (); | |
895 | extern Lisp_Object Fmake_vector (), Fvector (), Fmake_symbol (), Fmake_marker (); | |
896 | extern Lisp_Object Fmake_string (), build_string (), make_string (); | |
9453ea7b | 897 | extern Lisp_Object make_array (), make_uninit_string (); |
3cfe6dfd JB |
898 | extern Lisp_Object Fpurecopy (), make_pure_string (); |
899 | extern Lisp_Object pure_cons (), make_pure_vector (); | |
900 | extern Lisp_Object Fgarbage_collect (); | |
901 | ||
902 | /* Defined in print.c */ | |
903 | extern Lisp_Object Vprin1_to_string_buffer; | |
904 | extern Lisp_Object Fprin1 (), Fprin1_to_string (), Fprinc (); | |
905 | extern Lisp_Object Fterpri (), Fprint (); | |
906 | extern Lisp_Object Vstandard_output, Qstandard_output; | |
9453ea7b | 907 | extern Lisp_Object Qexternal_debugging_output; |
3cfe6dfd JB |
908 | extern void temp_output_buffer_setup (), temp_output_buffer_show (); |
909 | extern int print_level, print_escape_newlines; | |
910 | extern Lisp_Object Qprint_escape_newlines; | |
911 | ||
912 | /* Defined in lread.c */ | |
913 | extern Lisp_Object Qvariable_documentation, Qstandard_input; | |
914 | extern Lisp_Object Vobarray, Vstandard_input; | |
915 | extern Lisp_Object Fread (), Fread_from_string (); | |
916 | extern Lisp_Object Fintern (), Fintern_soft (), Fload (); | |
917 | extern Lisp_Object Fget_file_char (), Fread_char (); | |
918 | extern Lisp_Object Feval_current_buffer (), Feval_region (); | |
919 | extern Lisp_Object intern (), oblookup (); | |
920 | ||
921 | /* Defined in eval.c */ | |
922 | extern Lisp_Object Qautoload, Qexit, Qinteractive, Qcommandp, Qdefun, Qmacro; | |
ad236261 | 923 | extern Lisp_Object Vinhibit_quit, Qinhibit_quit, Vquit_flag; |
3cfe6dfd JB |
924 | extern Lisp_Object Vmocklisp_arguments, Qmocklisp, Qmocklisp_arguments; |
925 | extern Lisp_Object Vautoload_queue; | |
926 | extern Lisp_Object Vrun_hooks; | |
927 | extern Lisp_Object Fand (), For (), Fif (), Fprogn (), Fprog1 (), Fprog2 (); | |
928 | extern Lisp_Object Fsetq (), Fquote (); | |
929 | extern Lisp_Object Fuser_variable_p (), Finteractive_p (); | |
930 | extern Lisp_Object Fdefun (), Flet (), FletX (), Fwhile (); | |
931 | extern Lisp_Object Fcatch (), Fthrow (), Funwind_protect (); | |
932 | extern Lisp_Object Fcondition_case (), Fsignal (); | |
933 | extern Lisp_Object Ffunction_type (), Fautoload (), Fcommandp (); | |
934 | extern Lisp_Object Feval (), Fapply (), Ffuncall (); | |
935 | extern Lisp_Object Fglobal_set (), Fglobal_value (), Fbacktrace (); | |
936 | extern Lisp_Object apply1 (), call0 (), call1 (), call2 (), call3 (); | |
937 | extern Lisp_Object apply_lambda (); | |
938 | extern Lisp_Object internal_catch (); | |
939 | extern Lisp_Object internal_condition_case (); | |
940 | extern Lisp_Object unbind_to (); | |
941 | extern void error (); | |
942 | extern Lisp_Object un_autoload (); | |
943 | ||
944 | /* Defined in editfns.c */ | |
945 | extern Lisp_Object Vprefix_arg, Qminus, Vcurrent_prefix_arg; | |
946 | extern Lisp_Object Fgoto_char (); | |
947 | extern Lisp_Object Fpoint_min_marker (), Fpoint_max_marker (); | |
948 | extern Lisp_Object Fpoint_min (), Fpoint_max (); | |
949 | extern Lisp_Object Fpoint (), Fpoint_marker (), Fmark_marker (); | |
760cbdd3 JB |
950 | extern Lisp_Object Ffollowing_char (), Fprevious_char (), Fchar_after (); |
951 | extern Lisp_Object Finsert (); | |
3cfe6dfd JB |
952 | extern Lisp_Object Feolp (), Feobp (), Fbolp (), Fbobp (); |
953 | extern Lisp_Object Fformat (), format1 (); | |
954 | extern Lisp_Object Fbuffer_substring (), Fbuffer_string (); | |
955 | extern Lisp_Object Fstring_equal (), Fstring_lessp (), Fbuffer_substring_lessp (); | |
956 | extern Lisp_Object save_excursion_save (), save_restriction_save (); | |
957 | extern Lisp_Object save_excursion_restore (), save_restriction_restore (); | |
958 | extern Lisp_Object Fchar_to_string (); | |
959 | ||
960 | /* defined in buffer.c */ | |
961 | extern Lisp_Object Vbuffer_alist; | |
962 | extern Lisp_Object Fget_buffer (), Fget_buffer_create (), Fset_buffer (); | |
963 | extern Lisp_Object Fbarf_if_buffer_read_only (); | |
964 | extern Lisp_Object Fcurrent_buffer (), Fswitch_to_buffer (), Fpop_to_buffer (); | |
965 | extern Lisp_Object Fother_buffer (); | |
966 | extern struct buffer *all_buffers; | |
967 | ||
968 | /* defined in marker.c */ | |
969 | ||
970 | extern Lisp_Object Fmarker_position (), Fmarker_buffer (); | |
971 | extern Lisp_Object Fcopy_marker (); | |
972 | ||
973 | /* Defined in fileio.c */ | |
974 | ||
975 | extern Lisp_Object Qfile_error; | |
976 | extern Lisp_Object Ffile_name_as_directory (); | |
977 | extern Lisp_Object Fexpand_file_name (), Ffile_name_nondirectory (); | |
978 | extern Lisp_Object Fsubstitute_in_file_name (); | |
979 | extern Lisp_Object Ffile_symlink_p (); | |
980 | ||
981 | /* Defined in abbrev.c */ | |
982 | ||
983 | extern Lisp_Object Vfundamental_mode_abbrev_table; | |
984 | ||
985 | /* defined in search.c */ | |
986 | extern Lisp_Object Fstring_match (); | |
987 | extern Lisp_Object Fscan_buffer (); | |
988 | ||
989 | /* defined in minibuf.c */ | |
990 | ||
991 | extern Lisp_Object last_minibuf_string; | |
992 | extern Lisp_Object read_minibuf (), Fcompleting_read (); | |
993 | extern Lisp_Object Fread_from_minibuffer (); | |
994 | extern Lisp_Object Fread_variable (), Fread_buffer (), Fread_key_sequence (); | |
995 | extern Lisp_Object Fread_minibuffer (), Feval_minibuffer (); | |
996 | extern Lisp_Object Fread_string (), Fread_file_name (); | |
997 | extern Lisp_Object Fread_no_blanks_input (); | |
998 | ||
999 | /* Defined in callint.c */ | |
1000 | ||
1001 | extern Lisp_Object Vcommand_history; | |
1002 | extern Lisp_Object Qcall_interactively; | |
1003 | extern Lisp_Object Fcall_interactively (); | |
1004 | extern Lisp_Object Fprefix_numeric_value (); | |
1005 | ||
1006 | /* defined in casefiddle.c */ | |
1007 | ||
1008 | extern Lisp_Object Fdowncase (), Fupcase (), Fcapitalize (); | |
1009 | ||
1010 | /* defined in keyboard.c */ | |
1011 | ||
1012 | extern Lisp_Object Qdisabled; | |
1013 | extern Lisp_Object Vhelp_form, Vtop_level; | |
1014 | extern Lisp_Object Fdiscard_input (), Frecursive_edit (); | |
1015 | extern Lisp_Object Fcommand_execute (), Finput_pending_p (); | |
3cfe6dfd JB |
1016 | |
1017 | /* defined in keymap.c */ | |
1018 | ||
1019 | extern Lisp_Object Qkeymap; | |
1020 | extern Lisp_Object current_global_map; | |
1021 | extern Lisp_Object Fkey_description (), Fsingle_key_description (); | |
1022 | extern Lisp_Object Fwhere_is_internal (); | |
1023 | extern Lisp_Object access_keymap (), store_in_keymap (); | |
1024 | extern Lisp_Object get_keyelt (), get_keymap(); | |
1025 | ||
1026 | /* defined in indent.c */ | |
1027 | extern Lisp_Object Fvertical_motion (), Findent_to (), Fcurrent_column (); | |
1028 | ||
1029 | /* defined in window.c */ | |
1030 | extern Lisp_Object Qwindowp; | |
1031 | extern Lisp_Object Fget_buffer_window (); | |
1032 | extern Lisp_Object Fsave_window_excursion (); | |
1033 | extern Lisp_Object Fset_window_configuration (), Fcurrent_window_configuration (); | |
9453ea7b JB |
1034 | extern Lisp_Object Fcoordinates_in_window_p (); |
1035 | extern Lisp_Object Fwindow_at (); | |
3cfe6dfd JB |
1036 | |
1037 | /* defined in screen.c */ | |
1038 | extern Lisp_Object Fscreenp (); | |
1039 | extern Lisp_Object Fselect_screen (); | |
1040 | extern Lisp_Object Ffocus_screen (); | |
1041 | extern Lisp_Object Funfocus_screen (); | |
1042 | extern Lisp_Object Fselected_screen (); | |
1043 | extern Lisp_Object Fwindow_screen (); | |
1044 | extern Lisp_Object Fscreen_root_window (); | |
1045 | extern Lisp_Object Fscreen_selected_window (); | |
1046 | extern Lisp_Object Fscreen_list (); | |
1047 | extern Lisp_Object Fnext_screen (); | |
1048 | extern Lisp_Object Fdelete_screen (); | |
1049 | extern Lisp_Object Fread_mouse_position (); | |
1050 | extern Lisp_Object Fset_mouse_position (); | |
1051 | extern Lisp_Object Fmake_screen_visible (); | |
1052 | extern Lisp_Object Fmake_screen_invisible (); | |
1053 | extern Lisp_Object Ficonify_screen (); | |
1054 | extern Lisp_Object Fdeiconify_screen (); | |
1055 | extern Lisp_Object Fscreen_visible_p (); | |
1056 | extern Lisp_Object Fvisible_screen_list (); | |
1057 | extern Lisp_Object Fscreen_parameters (); | |
1058 | extern Lisp_Object Fmodify_screen_parameters (); | |
1059 | extern Lisp_Object Fscreen_pixel_size (); | |
1060 | extern Lisp_Object Fscreen_height (); | |
1061 | extern Lisp_Object Fscreen_width (); | |
1062 | extern Lisp_Object Fset_screen_height (); | |
1063 | extern Lisp_Object Fset_screen_width (); | |
1064 | extern Lisp_Object Fset_screen_size (); | |
1065 | extern Lisp_Object Fset_screen_position (); | |
3cfe6dfd JB |
1066 | #ifndef HAVE_X11 |
1067 | extern Lisp_Object Frubber_band_rectangle (); | |
1068 | #endif /* HAVE_X11 */ | |
1069 | ||
1070 | /* defined in emacs.c */ | |
1071 | extern Lisp_Object decode_env_path (); | |
1072 | /* Nonzero means don't do interactive redisplay and don't change tty modes */ | |
1073 | extern int noninteractive; | |
1074 | /* Nonzero means don't do use window-system-specific display code */ | |
1075 | extern int inhibit_window_system; | |
1076 | ||
1077 | /* defined in process.c */ | |
1078 | extern Lisp_Object Fget_process (), Fget_buffer_process (), Fprocessp (); | |
1079 | extern Lisp_Object Fprocess_status (), Fkill_process (); | |
1080 | ||
1081 | /* defined in callproc.c */ | |
9453ea7b | 1082 | extern Lisp_Object Vexec_path, Vexec_directory, Vdata_directory; |
3cfe6dfd | 1083 | |
3cfe6dfd JB |
1084 | /* defined in doc.c */ |
1085 | extern Lisp_Object Vdoc_file_name; | |
1086 | extern Lisp_Object Fsubstitute_command_keys (); | |
1087 | extern Lisp_Object Fdocumentation (), Fdocumentation_property (); | |
1088 | ||
1089 | /* defined in bytecode.c */ | |
1090 | extern Lisp_Object Qbytecode; | |
1091 | ||
1092 | /* defined in macros.c */ | |
1093 | extern Lisp_Object Qexecute_kbd_macro; | |
1094 | extern Lisp_Object Fexecute_kbd_macro (); | |
1095 | ||
1096 | /* Nonzero means Emacs has already been initialized. | |
1097 | Used during startup to detect startup of dumped Emacs. */ | |
1098 | extern int initialized; | |
1099 | ||
1100 | extern int immediate_quit; /* Nonzero means ^G can quit instantly */ | |
1101 | ||
1102 | extern void debugger (); | |
1103 | ||
1104 | extern char *malloc (), *realloc (), *getenv (), *ctime (), *getwd (); | |
1105 | extern long *xmalloc (), *xrealloc (); | |
1106 | ||
efb859b4 | 1107 | extern char *egetenv (); |