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3cfe6dfd | 1 | /* Fundamental definitions for GNU Emacs Lisp interpreter. |
e07d7a05 | 2 | Copyright (C) 1985,86,87,93,94,95 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 | ||
ce99fd65 RS |
21 | /* These are default choices for the types to use. */ |
22 | #ifndef EMACS_INT | |
23 | #define EMACS_INT int | |
24 | #endif | |
25 | #ifndef EMACS_UINT | |
26 | #define EMACS_UINT unsigned int | |
27 | #endif | |
28 | ||
99a3d506 | 29 | /* Define the fundamental Lisp data structures. */ |
3cfe6dfd | 30 | |
99a3d506 | 31 | /* This is the set of Lisp data types. */ |
3cfe6dfd JB |
32 | |
33 | enum Lisp_Type | |
34 | { | |
99a3d506 | 35 | /* Integer. XINT (obj) is the integer value. */ |
3cfe6dfd JB |
36 | Lisp_Int, |
37 | ||
99a3d506 | 38 | /* Symbol. XSYMBOL (object) points to a struct Lisp_Symbol. */ |
3cfe6dfd JB |
39 | Lisp_Symbol, |
40 | ||
84d1833e KH |
41 | /* Miscellaneous. XMISC (object) points to a union Lisp_Misc, |
42 | whose first member indicates the subtype. */ | |
43 | Lisp_Misc, | |
3cfe6dfd JB |
44 | |
45 | /* String. XSTRING (object) points to a struct Lisp_String. | |
99a3d506 | 46 | The length of the string, and its contents, are stored therein. */ |
3cfe6dfd JB |
47 | Lisp_String, |
48 | ||
b5088f80 | 49 | /* Vector of Lisp objects, or something resembling it. |
7c06ac2b | 50 | XVECTOR (object) points to a struct Lisp_Vector, which contains |
b5088f80 KH |
51 | the size and contents. The size field also contains the type |
52 | information, if it's not a real vector object. */ | |
53 | Lisp_Vectorlike, | |
3cfe6dfd | 54 | |
99a3d506 | 55 | /* Cons. XCONS (object) points to a struct Lisp_Cons. */ |
3cfe6dfd JB |
56 | Lisp_Cons, |
57 | ||
3cfe6dfd | 58 | #ifdef LISP_FLOAT_TYPE |
20280af7 | 59 | Lisp_Float, |
3cfe6dfd | 60 | #endif /* LISP_FLOAT_TYPE */ |
4d1207f6 RS |
61 | |
62 | /* This is not a type code. It is for range checking. */ | |
e2ba196c | 63 | Lisp_Type_Limit |
3cfe6dfd JB |
64 | }; |
65 | ||
84d1833e | 66 | /* This is the set of datatypes that share a common structure. |
c98adc1b KH |
67 | The first member of the structure is a type code from this set. |
68 | The enum values are arbitrary, but we'll use large numbers to make it | |
69 | more likely that we'll spot the error if a random word in memory is | |
70 | mistakenly interpreted as a Lisp_Misc. */ | |
1c4ca5a3 KH |
71 | enum Lisp_Misc_Type |
72 | { | |
c98adc1b | 73 | Lisp_Misc_Free = 0x5eab, |
84d1833e | 74 | Lisp_Misc_Marker, |
ee4c9ce4 KH |
75 | Lisp_Misc_Intfwd, |
76 | Lisp_Misc_Boolfwd, | |
77 | Lisp_Misc_Objfwd, | |
7d65f1c2 KH |
78 | Lisp_Misc_Buffer_Objfwd, |
79 | Lisp_Misc_Buffer_Local_Value, | |
ce7d8eec | 80 | Lisp_Misc_Some_Buffer_Local_Value, |
99a3d506 | 81 | Lisp_Misc_Overlay, |
f334de0e | 82 | Lisp_Misc_Display_Objfwd, |
99a3d506 RS |
83 | /* Currently floats are not a misc type, |
84 | but let's define this in case we want to change that. */ | |
85 | Lisp_Misc_Float, | |
86 | /* This is not a type code. It is for range checking. */ | |
87 | Lisp_Misc_Limit | |
1c4ca5a3 KH |
88 | }; |
89 | ||
e2ba196c KH |
90 | /* These values are overridden by the m- file on some machines. */ |
91 | #ifndef VALBITS | |
92 | #define VALBITS 28 | |
93 | #endif | |
94 | ||
95 | #ifndef GCTYPEBITS | |
96 | #define GCTYPEBITS 3 | |
97 | #endif | |
98 | ||
3cfe6dfd JB |
99 | #ifndef NO_UNION_TYPE |
100 | ||
c451d7b1 | 101 | #ifndef WORDS_BIG_ENDIAN |
3cfe6dfd JB |
102 | |
103 | /* Definition of Lisp_Object for little-endian machines. */ | |
104 | ||
105 | typedef | |
106 | union Lisp_Object | |
107 | { | |
108 | /* Used for comparing two Lisp_Objects; | |
99a3d506 | 109 | also, positive integers can be accessed fast this way. */ |
3cfe6dfd JB |
110 | int i; |
111 | ||
112 | struct | |
113 | { | |
e2ba196c KH |
114 | int val: VALBITS; |
115 | int type: GCTYPEBITS+1; | |
3cfe6dfd JB |
116 | } s; |
117 | struct | |
118 | { | |
e2ba196c KH |
119 | unsigned int val: VALBITS; |
120 | int type: GCTYPEBITS+1; | |
3cfe6dfd JB |
121 | } u; |
122 | struct | |
123 | { | |
e2ba196c KH |
124 | unsigned int val: VALBITS; |
125 | enum Lisp_Type type: GCTYPEBITS; | |
3cfe6dfd JB |
126 | /* The markbit is not really part of the value of a Lisp_Object, |
127 | and is always zero except during garbage collection. */ | |
128 | unsigned int markbit: 1; | |
129 | } gu; | |
130 | } | |
131 | Lisp_Object; | |
132 | ||
c451d7b1 | 133 | #else /* If WORDS_BIG_ENDIAN */ |
3cfe6dfd JB |
134 | |
135 | typedef | |
136 | union Lisp_Object | |
137 | { | |
138 | /* Used for comparing two Lisp_Objects; | |
99a3d506 | 139 | also, positive integers can be accessed fast this way. */ |
3cfe6dfd JB |
140 | int i; |
141 | ||
142 | struct | |
143 | { | |
e2ba196c KH |
144 | int type: GCTYPEBITS+1; |
145 | int val: VALBITS; | |
3cfe6dfd JB |
146 | } s; |
147 | struct | |
148 | { | |
e2ba196c KH |
149 | int type: GCTYPEBITS+1; |
150 | unsigned int val: VALBITS; | |
3cfe6dfd JB |
151 | } u; |
152 | struct | |
153 | { | |
154 | /* The markbit is not really part of the value of a Lisp_Object, | |
155 | and is always zero except during garbage collection. */ | |
156 | unsigned int markbit: 1; | |
e2ba196c KH |
157 | enum Lisp_Type type: GCTYPEBITS; |
158 | unsigned int val: VALBITS; | |
3cfe6dfd JB |
159 | } gu; |
160 | } | |
161 | Lisp_Object; | |
162 | ||
c451d7b1 | 163 | #endif /* WORDS_BIG_ENDIAN */ |
3cfe6dfd JB |
164 | |
165 | #endif /* NO_UNION_TYPE */ | |
166 | ||
167 | ||
168 | /* If union type is not wanted, define Lisp_Object as just a number | |
169 | and define the macros below to extract fields by shifting */ | |
170 | ||
171 | #ifdef NO_UNION_TYPE | |
172 | ||
627a9502 | 173 | #define Lisp_Object EMACS_INT |
3cfe6dfd | 174 | |
3cfe6dfd | 175 | #ifndef VALMASK |
627a9502 | 176 | #define VALMASK ((((EMACS_INT) 1)<<VALBITS) - 1) |
3cfe6dfd | 177 | #endif |
627a9502 | 178 | #define GCTYPEMASK ((((EMACS_INT) 1)<<GCTYPEBITS) - 1) |
846d69ac RS |
179 | |
180 | /* Two flags that are set during GC. On some machines, these flags | |
181 | are defined differently by the m- file. */ | |
182 | ||
183 | /* This is set in the car of a cons and in the plist slot of a symbol | |
184 | to indicate it is marked. Likewise in the plist slot of an interval, | |
185 | the chain slot of a marker, the type slot of a float, and the name | |
186 | slot of a buffer. | |
187 | ||
188 | In strings, this bit in the size field indicates that the string | |
189 | is a "large" one, one which was separately malloc'd | |
190 | rather than being part of a string block. */ | |
191 | ||
627a9502 | 192 | #ifndef MARKBIT |
3cfe6dfd | 193 | #define MARKBIT (1 << (VALBITS + GCTYPEBITS)) |
627a9502 | 194 | #endif /*MARKBIT */ |
3cfe6dfd | 195 | |
846d69ac RS |
196 | /* In the size word of a vector, this bit means the vector has been marked. |
197 | In the size word of a large string, likewise. */ | |
198 | ||
199 | #ifndef ARRAY_MARK_FLAG | |
200 | #define ARRAY_MARK_FLAG ((MARKBIT >> 1) & ~MARKBIT) | |
201 | #endif /* no ARRAY_MARK_FLAG */ | |
202 | ||
b5088f80 KH |
203 | /* In the size word of a struct Lisp_Vector, this bit means it's really |
204 | some other vector-like object. */ | |
205 | #ifndef PSEUDOVECTOR_FLAG | |
206 | #define PSEUDOVECTOR_FLAG ((ARRAY_MARK_FLAG >> 1) & ~ARRAY_MARK_FLAG) | |
207 | #endif | |
208 | ||
303a5c93 | 209 | /* In a pseudovector, the size field actually contains a word with one |
b5088f80 KH |
210 | PSEUDOVECTOR_FLAG bit set, and exactly one of the following bits to |
211 | indicate the actual type. */ | |
99a3d506 RS |
212 | enum pvec_type |
213 | { | |
214 | PVEC_NORMAL_VECTOR = 0, | |
215 | PVEC_BUFFER = 0x100, | |
216 | PVEC_PROCESS = 0x200, | |
217 | PVEC_FRAME = 0x400, | |
218 | PVEC_COMPILED = 0x800, | |
219 | PVEC_WINDOW = 0x1000, | |
220 | PVEC_WINDOW_CONFIGURATION = 0x2000, | |
221 | PVEC_SUBR = 0x4000, | |
222 | PVEC_TYPE_MASK = 0x7f00, | |
223 | PVEC_FLAG = PSEUDOVECTOR_FLAG, | |
224 | }; | |
b5088f80 KH |
225 | |
226 | /* For convenience, we also store the number of elements in these bits. */ | |
227 | #define PSEUDOVECTOR_SIZE_MASK 0xff | |
228 | ||
229 | #if ARRAY_MARK_FLAG == MARKBIT || PSEUDOVECTOR_FLAG == ARRAY_MARK_FLAG || PSEUDOVECTOR_FLAG == MARKBIT | |
846d69ac RS |
230 | you lose |
231 | #endif | |
232 | ||
3cfe6dfd JB |
233 | #endif /* NO_UNION_TYPE */ |
234 | \f | |
235 | /* These macros extract various sorts of values from a Lisp_Object. | |
236 | For example, if tem is a Lisp_Object whose type is Lisp_Cons, | |
99a3d506 | 237 | XCONS (tem) is the struct Lisp_Cons * pointing to the memory for that cons. */ |
3cfe6dfd JB |
238 | |
239 | #ifdef NO_UNION_TYPE | |
240 | ||
241 | /* One need to override this if there must be high bits set in data space | |
242 | (doing the result of the below & ((1 << (GCTYPE + 1)) - 1) would work | |
243 | on all machines, but would penalise machines which don't need it) | |
244 | */ | |
245 | #ifndef XTYPE | |
246 | #define XTYPE(a) ((enum Lisp_Type) ((a) >> VALBITS)) | |
247 | #endif | |
248 | ||
249 | #ifndef XSETTYPE | |
627a9502 | 250 | #define XSETTYPE(a, b) ((a) = XUINT (a) | ((EMACS_INT)(b) << VALBITS)) |
3cfe6dfd JB |
251 | #endif |
252 | ||
221f4ef3 KH |
253 | /* For integers known to be positive, XFASTINT provides fast retrieval |
254 | and XSETFASTINT provides fast storage. This takes advantage of the | |
255 | fact that Lisp_Int is 0. */ | |
e43ec785 | 256 | #define XFASTINT(a) ((a) + 0) |
221f4ef3 | 257 | #define XSETFASTINT(a, b) ((a) = (b)) |
3cfe6dfd JB |
258 | |
259 | /* Extract the value of a Lisp_Object as a signed integer. */ | |
260 | ||
261 | #ifndef XINT /* Some machines need to do this differently. */ | |
e065a56e | 262 | #define XINT(a) (((a) << (INTBITS-VALBITS)) >> (INTBITS-VALBITS)) |
3cfe6dfd JB |
263 | #endif |
264 | ||
265 | /* Extract the value as an unsigned integer. This is a basis | |
266 | for extracting it as a pointer to a structure in storage. */ | |
267 | ||
268 | #ifndef XUINT | |
269 | #define XUINT(a) ((a) & VALMASK) | |
270 | #endif | |
271 | ||
272 | #ifndef XPNTR | |
273 | #ifdef HAVE_SHM | |
274 | /* In this representation, data is found in two widely separated segments. */ | |
29eab336 | 275 | extern int pure_size; |
3cfe6dfd | 276 | #define XPNTR(a) \ |
29eab336 | 277 | (XUINT (a) | (XUINT (a) > pure_size ? DATA_SEG_BITS : PURE_SEG_BITS)) |
3cfe6dfd JB |
278 | #else /* not HAVE_SHM */ |
279 | #ifdef DATA_SEG_BITS | |
280 | /* This case is used for the rt-pc. | |
281 | In the diffs I was given, it checked for ptr = 0 | |
282 | and did not adjust it in that case. | |
283 | But I don't think that zero should ever be found | |
284 | in a Lisp object whose data type says it points to something. */ | |
285 | #define XPNTR(a) (XUINT (a) | DATA_SEG_BITS) | |
286 | #else | |
287 | #define XPNTR(a) XUINT (a) | |
288 | #endif | |
289 | #endif /* not HAVE_SHM */ | |
290 | #endif /* no XPNTR */ | |
291 | ||
3cfe6dfd JB |
292 | #ifndef XSET |
293 | #define XSET(var, type, ptr) \ | |
627a9502 | 294 | ((var) = ((EMACS_INT)(type) << VALBITS) + ((EMACS_INT) (ptr) & VALMASK)) |
3cfe6dfd JB |
295 | #endif |
296 | ||
297 | /* During garbage collection, XGCTYPE must be used for extracting types | |
298 | so that the mark bit is ignored. XMARKBIT accesses the markbit. | |
299 | Markbits are used only in particular slots of particular structure types. | |
300 | Other markbits are always zero. | |
301 | Outside of garbage collection, all mark bits are always zero. */ | |
302 | ||
303 | #ifndef XGCTYPE | |
304 | #define XGCTYPE(a) ((enum Lisp_Type) (((a) >> VALBITS) & GCTYPEMASK)) | |
305 | #endif | |
306 | ||
307 | #if VALBITS + GCTYPEBITS == INTBITS - 1 | |
308 | /* Make XMARKBIT faster if mark bit is sign bit. */ | |
309 | #ifndef XMARKBIT | |
310 | #define XMARKBIT(a) ((a) < 0) | |
311 | #endif | |
312 | #endif /* markbit is sign bit */ | |
313 | ||
314 | #ifndef XMARKBIT | |
315 | #define XMARKBIT(a) ((a) & MARKBIT) | |
316 | #endif | |
317 | ||
318 | #ifndef XSETMARKBIT | |
319 | #define XSETMARKBIT(a,b) ((a) = ((a) & ~MARKBIT) | ((b) ? MARKBIT : 0)) | |
320 | #endif | |
321 | ||
322 | #ifndef XMARK | |
323 | #define XMARK(a) ((a) |= MARKBIT) | |
324 | #endif | |
325 | ||
326 | #ifndef XUNMARK | |
327 | #define XUNMARK(a) ((a) &= ~MARKBIT) | |
328 | #endif | |
329 | ||
330 | #endif /* NO_UNION_TYPE */ | |
331 | ||
332 | #ifndef NO_UNION_TYPE | |
333 | ||
334 | #define XTYPE(a) ((enum Lisp_Type) (a).u.type) | |
335 | #define XSETTYPE(a, b) ((a).u.type = (char) (b)) | |
336 | ||
221f4ef3 KH |
337 | /* For integers known to be positive, XFASTINT provides fast retrieval |
338 | and XSETFASTINT provides fast storage. This takes advantage of the | |
339 | fact that Lisp_Int is 0. */ | |
e43ec785 | 340 | #define XFASTINT(a) ((a).i + 0) |
221f4ef3 | 341 | #define XSETFASTINT(a, b) ((a).i = (b)) |
3cfe6dfd JB |
342 | |
343 | #ifdef EXPLICIT_SIGN_EXTEND | |
344 | /* Make sure we sign-extend; compilers have been known to fail to do so. */ | |
177efd15 | 345 | #define XINT(a) (((a).i << (INTBITS-VALBITS)) >> (INTBITS-VALBITS)) |
3cfe6dfd JB |
346 | #else |
347 | #define XINT(a) ((a).s.val) | |
348 | #endif /* EXPLICIT_SIGN_EXTEND */ | |
349 | ||
350 | #define XUINT(a) ((a).u.val) | |
351 | #define XPNTR(a) ((a).u.val) | |
3cfe6dfd JB |
352 | |
353 | #define XSET(var, vartype, ptr) \ | |
354 | (((var).s.type = ((char) (vartype))), ((var).s.val = ((int) (ptr)))) | |
355 | ||
356 | /* During garbage collection, XGCTYPE must be used for extracting types | |
357 | so that the mark bit is ignored. XMARKBIT access the markbit. | |
358 | Markbits are used only in particular slots of particular structure types. | |
359 | Other markbits are always zero. | |
360 | Outside of garbage collection, all mark bits are always zero. */ | |
361 | ||
362 | #define XGCTYPE(a) ((a).gu.type) | |
363 | #define XMARKBIT(a) ((a).gu.markbit) | |
364 | #define XSETMARKBIT(a,b) (XMARKBIT(a) = (b)) | |
365 | #define XMARK(a) (XMARKBIT(a) = 1) | |
366 | #define XUNMARK(a) (XMARKBIT(a) = 0) | |
367 | ||
368 | #endif /* NO_UNION_TYPE */ | |
369 | ||
99a3d506 | 370 | /* Extract a value or address from a Lisp_Object. */ |
3cfe6dfd JB |
371 | |
372 | #define XCONS(a) ((struct Lisp_Cons *) XPNTR(a)) | |
3cfe6dfd | 373 | #define XVECTOR(a) ((struct Lisp_Vector *) XPNTR(a)) |
3cfe6dfd JB |
374 | #define XSTRING(a) ((struct Lisp_String *) XPNTR(a)) |
375 | #define XSYMBOL(a) ((struct Lisp_Symbol *) XPNTR(a)) | |
3cfe6dfd | 376 | #define XFLOAT(a) ((struct Lisp_Float *) XPNTR(a)) |
7c06ac2b RS |
377 | |
378 | /* Misc types. */ | |
379 | #define XMISC(a) ((union Lisp_Misc *) XPNTR(a)) | |
84d1833e | 380 | #define XMARKER(a) (&(XMISC(a)->u_marker)) |
ee4c9ce4 KH |
381 | #define XINTFWD(a) (&(XMISC(a)->u_intfwd)) |
382 | #define XBOOLFWD(a) (&(XMISC(a)->u_boolfwd)) | |
383 | #define XOBJFWD(a) (&(XMISC(a)->u_objfwd)) | |
384 | #define XBUFFER_OBJFWD(a) (&(XMISC(a)->u_buffer_objfwd)) | |
7d65f1c2 | 385 | #define XBUFFER_LOCAL_VALUE(a) (&(XMISC(a)->u_buffer_local_value)) |
ce7d8eec | 386 | #define XOVERLAY(a) (&(XMISC(a)->u_overlay)) |
f334de0e | 387 | #define XDISPLAY_OBJFWD(a) (&(XMISC(a)->u_display_objfwd)) |
3cfe6dfd | 388 | |
7c06ac2b RS |
389 | /* Pseudovector types. */ |
390 | #define XPROCESS(a) ((struct Lisp_Process *) XPNTR(a)) | |
391 | #define XWINDOW(a) ((struct window *) XPNTR(a)) | |
392 | #define XSUBR(a) ((struct Lisp_Subr *) XPNTR(a)) | |
99a3d506 RS |
393 | #define XBUFFER(a) ((struct buffer *) XPNTR(a)) |
394 | ||
395 | ||
396 | /* Construct a Lisp_Object from a value or address. */ | |
7c06ac2b | 397 | |
a94ef819 KH |
398 | #define XSETINT(a, b) XSET (a, Lisp_Int, b) |
399 | #define XSETCONS(a, b) XSET (a, Lisp_Cons, b) | |
b5088f80 | 400 | #define XSETVECTOR(a, b) XSET (a, Lisp_Vectorlike, b) |
a94ef819 KH |
401 | #define XSETSTRING(a, b) XSET (a, Lisp_String, b) |
402 | #define XSETSYMBOL(a, b) XSET (a, Lisp_Symbol, b) | |
a94ef819 | 403 | #define XSETFLOAT(a, b) XSET (a, Lisp_Float, b) |
7c06ac2b RS |
404 | |
405 | /* Misc types. */ | |
406 | #define XSETMISC(a, b) XSET (a, Lisp_Misc, b) | |
84d1833e | 407 | #define XSETMARKER(a, b) (XSETMISC (a, b), XMISC (a)->type = Lisp_Misc_Marker) |
7c06ac2b RS |
408 | |
409 | /* Pseudovector types. */ | |
410 | #define XSETPSEUDOVECTOR(a, b, code) \ | |
411 | (XSETVECTOR (a, b), XVECTOR (a)->size |= PSEUDOVECTOR_FLAG | (code)) | |
412 | #define XSETWINDOW_CONFIGURATION(a, b) \ | |
413 | (XSETPSEUDOVECTOR (a, b, PVEC_WINDOW_CONFIGURATION)) | |
414 | #define XSETPROCESS(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_PROCESS)) | |
415 | #define XSETWINDOW(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_WINDOW)) | |
416 | #define XSETSUBR(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_SUBR)) | |
417 | #define XSETCOMPILED(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_COMPILED)) | |
99a3d506 | 418 | #define XSETBUFFER(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_BUFFER)) |
3cfe6dfd | 419 | \f |
e221eae3 | 420 | #ifdef USE_TEXT_PROPERTIES |
99a3d506 | 421 | /* Basic data type for use of intervals. See the macros in intervals.h. */ |
e221eae3 JA |
422 | |
423 | struct interval | |
424 | { | |
99a3d506 | 425 | /* The first group of entries deal with the tree structure. */ |
e221eae3 | 426 | |
99a3d506 RS |
427 | unsigned int total_length; /* Length of myself and both children. */ |
428 | unsigned int position; /* Cache of interval's character position. */ | |
429 | struct interval *left; /* Intervals which precede me. */ | |
430 | struct interval *right; /* Intervals which succeed me. */ | |
e8720644 JB |
431 | |
432 | /* Parent in the tree, or the Lisp_Object containing this interval tree. | |
433 | ||
434 | The mark bit on the root interval of an interval tree says | |
435 | whether we have started (and possibly finished) marking the | |
436 | tree. If GC comes across an interval tree whose root's parent | |
437 | field has its markbit set, it leaves the tree alone. | |
438 | ||
439 | You'd think we could store this information in the parent object | |
440 | somewhere (after all, that should be visited once and then | |
441 | ignored too, right?), but strings are GC'd strangely. */ | |
442 | struct interval *parent; | |
e221eae3 JA |
443 | |
444 | /* The remaining components are `properties' of the interval. | |
445 | The first four are duplicates for things which can be on the list, | |
99a3d506 | 446 | for purposes of speed. */ |
e221eae3 JA |
447 | |
448 | unsigned char write_protect; /* Non-zero means can't modify. */ | |
99a3d506 | 449 | unsigned char visible; /* Zero means don't display. */ |
cde20f41 | 450 | unsigned char front_sticky; /* Non-zero means text inserted just |
99a3d506 RS |
451 | before this interval goes into it. */ |
452 | unsigned char rear_sticky; /* Likewise for just after it. */ | |
e221eae3 | 453 | |
e8720644 JB |
454 | /* Properties of this interval. |
455 | The mark bit on this field says whether this particular interval | |
456 | tree node has been visited. Since intervals should never be | |
457 | shared, GC aborts if it seems to have visited an interval twice. */ | |
458 | Lisp_Object plist; | |
e221eae3 JA |
459 | }; |
460 | ||
461 | typedef struct interval *INTERVAL; | |
462 | ||
463 | /* Complain if object is not string or buffer type */ | |
464 | #define CHECK_STRING_OR_BUFFER(x, i) \ | |
c5af3bb9 | 465 | { if (!STRINGP ((x)) && !BUFFERP ((x))) \ |
e221eae3 JA |
466 | x = wrong_type_argument (Qbuffer_or_string_p, (x)); } |
467 | ||
468 | /* Macro used to conditionally compile intervals into certain data | |
99a3d506 | 469 | structures. See, e.g., struct Lisp_String below. */ |
e221eae3 JA |
470 | #define DECLARE_INTERVALS INTERVAL intervals; |
471 | ||
eb8c3be9 | 472 | /* Macro used to conditionally compile interval initialization into |
99a3d506 | 473 | certain code. See, e.g., alloc.c. */ |
e221eae3 JA |
474 | #define INITIALIZE_INTERVAL(ptr,val) ptr->intervals = val |
475 | ||
476 | #else /* No text properties */ | |
477 | ||
99a3d506 | 478 | /* If no intervals are used, make the above definitions go away. */ |
e221eae3 JA |
479 | |
480 | #define CHECK_STRING_OR_BUFFER(x, i) | |
481 | ||
482 | #define INTERVAL | |
483 | #define DECLARE_INTERVALS | |
484 | #define INITIALIZE_INTERVAL(ptr,val) | |
485 | ||
486 | #endif /* USE_TEXT_PROPERTIES */ | |
487 | \f | |
329d5279 | 488 | #define ECHOBUFSIZE 300 |
f6064cbe | 489 | /* All of the per-display objects, packaged together in a struct. */ |
a2d3b8ba KH |
490 | typedef struct PERDISPLAY PERDISPLAY; |
491 | struct PERDISPLAY | |
f6064cbe | 492 | { |
a2d3b8ba | 493 | PERDISPLAY *next_perdisplay; |
e07d7a05 KH |
494 | Lisp_Object Vprefix_arg; |
495 | Lisp_Object Vcurrent_prefix_arg; | |
e6beaa77 KH |
496 | |
497 | #ifdef MULTI_FRAME | |
498 | /* The frame in which the last input event occurred, or Qmacro if the | |
499 | last event came from a macro. We use this to determine when to | |
500 | generate switch-frame events. This may be cleared by functions | |
501 | like Fselect_frame, to make sure that a switch-frame event is | |
502 | generated by the next character. */ | |
f6064cbe | 503 | Lisp_Object internal_last_event_frame; |
e6beaa77 KH |
504 | #endif |
505 | ||
506 | /* A user-visible version of the above, intended to allow users to | |
507 | figure out where the last event came from, if the event doesn't | |
508 | carry that information itself (i.e. if it was a character). */ | |
509 | Lisp_Object Vlast_event_frame; | |
510 | ||
511 | /* Placeholder for future vars that will be moved here. */ | |
512 | Lisp_Object unused[20]; | |
513 | ||
514 | Lisp_Object this_command_keys; | |
329d5279 KH |
515 | |
516 | /* Vector to GCPRO the frames and windows mentioned in kbd_buffer. | |
517 | ||
518 | The interrupt-level event handlers will never enqueue an event on a | |
519 | frame which is not in Vframe_list, and once an event is dequeued, | |
520 | internal_last_event_frame or the event itself points to the frame. | |
521 | So that's all fine. | |
522 | ||
523 | But while the event is sitting in the queue, it's completely | |
524 | unprotected. Suppose the user types one command which will run for | |
525 | a while and then delete a frame, and then types another event at | |
526 | the frame that will be deleted, before the command gets around to | |
527 | it. Suppose there are no references to this frame elsewhere in | |
528 | Emacs, and a GC occurs before the second event is dequeued. Now we | |
529 | have an event referring to a freed frame, which will crash Emacs | |
530 | when it is dequeued. | |
531 | ||
532 | Similar things happen when an event on a scroll bar is enqueued; the | |
533 | window may be deleted while the event is in the queue. | |
534 | ||
535 | So, we use this vector to protect the frame_or_window field in the | |
536 | event queue. That way, they'll be dequeued as dead frames or | |
537 | windows, but still valid lisp objects. | |
538 | ||
539 | If perd->kbd_buffer[i].kind != no_event, then | |
540 | (XVECTOR (perd->kbd_buffer_frame_or_window)->contents[i] | |
541 | == perd->kbd_buffer[i].frame_or_window. */ | |
f6064cbe | 542 | Lisp_Object kbd_buffer_frame_or_window; |
5fc12a78 KH |
543 | |
544 | /* Circular buffer for pre-read keyboard input. */ | |
f6064cbe | 545 | struct input_event *kbd_buffer; |
5fc12a78 KH |
546 | |
547 | /* Pointer to next available character in kbd_buffer. | |
548 | If kbd_fetch_ptr == kbd_store_ptr, the buffer is empty. | |
549 | This may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the the | |
550 | next available char is in kbd_buffer[0]. */ | |
f6064cbe | 551 | struct input_event *kbd_fetch_ptr; |
5fc12a78 KH |
552 | |
553 | /* Pointer to next place to store character in kbd_buffer. This | |
554 | may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the next | |
555 | character should go in kbd_buffer[0]. */ | |
556 | volatile struct input_event *kbd_store_ptr; | |
557 | ||
558 | /* The above pair of variables forms a "queue empty" flag. When we | |
559 | enqueue a non-hook event, we increment kbd_store_ptr. When we | |
560 | dequeue a non-hook event, we increment kbd_fetch_ptr. We say that | |
561 | there is input available iff the two counters are not equal. | |
562 | ||
563 | Why not just have a flag set and cleared by the enqueuing and | |
564 | dequeuing functions? Such a flag could be screwed up by interrupts | |
565 | at inopportune times. */ | |
566 | ||
f6064cbe | 567 | int this_command_key_count; |
329d5279 KH |
568 | |
569 | /* Nonzero means echo each character as typed. */ | |
f6064cbe | 570 | int immediate_echo; |
329d5279 KH |
571 | |
572 | /* If we have echoed a prompt string specified by the user, | |
573 | this is its length. Otherwise this is -1. */ | |
f6064cbe | 574 | int echo_after_prompt; |
329d5279 KH |
575 | |
576 | /* Where to append more text to echobuf if we want to. */ | |
f6064cbe | 577 | char *echoptr; |
329d5279 KH |
578 | |
579 | /* The text we're echoing in the modeline - partial key sequences, | |
580 | usually. '\0'-terminated. This really shouldn't have a fixed size. */ | |
581 | char echobuf[ECHOBUFSIZE]; | |
a2d3b8ba KH |
582 | }; |
583 | ||
e1e81fd6 | 584 | #ifdef MULTI_PERDISPLAY |
e07d7a05 | 585 | /* The perdisplay object associated with a particular frame. */ |
e1e81fd6 | 586 | extern PERDISPLAY *get_perdisplay (); |
e07d7a05 KH |
587 | |
588 | /* The perdisplay object associated with the currently executing command. */ | |
589 | extern PERDISPLAY *current_perdisplay; | |
a2d3b8ba KH |
590 | |
591 | /* A list of all perdisplay objects, linked through next_perdisplay. */ | |
592 | extern PERDISPLAY *all_perdisplays; | |
e1e81fd6 | 593 | #else |
b408f510 KH |
594 | extern PERDISPLAY the_only_perdisplay; |
595 | #define get_perdisplay(f) (&the_only_perdisplay) | |
a2d3b8ba KH |
596 | #define current_perdisplay (&the_only_perdisplay) |
597 | #define all_perdisplays (&the_only_perdisplay) | |
e1e81fd6 | 598 | #endif |
f6064cbe | 599 | \f |
3cfe6dfd JB |
600 | /* In a cons, the markbit of the car is the gc mark bit */ |
601 | ||
602 | struct Lisp_Cons | |
603 | { | |
604 | Lisp_Object car, cdr; | |
605 | }; | |
606 | ||
607 | /* Like a cons, but records info on where the text lives that it was read from */ | |
608 | /* This is not really in use now */ | |
609 | ||
610 | struct Lisp_Buffer_Cons | |
611 | { | |
612 | Lisp_Object car, cdr; | |
613 | struct buffer *buffer; | |
614 | int bufpos; | |
615 | }; | |
616 | ||
617 | /* In a string or vector, the sign bit of the `size' is the gc mark bit */ | |
618 | ||
619 | struct Lisp_String | |
620 | { | |
627a9502 | 621 | EMACS_INT size; |
99a3d506 | 622 | DECLARE_INTERVALS /* `data' field must be last. */ |
3cfe6dfd JB |
623 | unsigned char data[1]; |
624 | }; | |
625 | ||
94225242 KH |
626 | /* If a struct is made to look like a vector, this macro returns the length |
627 | of that vector. */ | |
628 | #define VECSIZE(type) ((sizeof (type) - (sizeof (struct Lisp_Vector) \ | |
629 | - sizeof (Lisp_Object))) \ | |
630 | / sizeof (Lisp_Object)) | |
631 | ||
3cfe6dfd JB |
632 | struct Lisp_Vector |
633 | { | |
627a9502 | 634 | EMACS_INT size; |
3cfe6dfd JB |
635 | struct Lisp_Vector *next; |
636 | Lisp_Object contents[1]; | |
637 | }; | |
638 | ||
639 | /* In a symbol, the markbit of the plist is used as the gc mark bit */ | |
640 | ||
641 | struct Lisp_Symbol | |
642 | { | |
643 | struct Lisp_String *name; | |
644 | Lisp_Object value; | |
645 | Lisp_Object function; | |
646 | Lisp_Object plist; | |
647 | struct Lisp_Symbol *next; /* -> next symbol in this obarray bucket */ | |
648 | }; | |
649 | ||
7c06ac2b RS |
650 | /* This structure describes a built-in function. |
651 | It is generated by the DEFUN macro only. | |
652 | defsubr makes it into a Lisp object. | |
653 | ||
654 | This type is treated in most respects as a pseudovector, | |
655 | but since we never dynamically allocate or free them, | |
656 | we don't need a next-vector field. */ | |
657 | ||
3cfe6dfd JB |
658 | struct Lisp_Subr |
659 | { | |
7c06ac2b | 660 | EMACS_INT size; |
3cfe6dfd JB |
661 | Lisp_Object (*function) (); |
662 | short min_args, max_args; | |
663 | char *symbol_name; | |
664 | char *prompt; | |
665 | char *doc; | |
666 | }; | |
ee4c9ce4 | 667 | \f |
7c06ac2b RS |
668 | /* These structures are used for various misc types. */ |
669 | ||
ee4c9ce4 KH |
670 | /* A miscellaneous object, when it's on the free list. */ |
671 | struct Lisp_Free | |
672 | { | |
5bfac5a9 RS |
673 | int type : 16; /* = Lisp_Misc_Free */ |
674 | int spacer : 16; | |
ee4c9ce4 KH |
675 | union Lisp_Misc *chain; |
676 | }; | |
3cfe6dfd JB |
677 | |
678 | /* In a marker, the markbit of the chain field is used as the gc mark bit */ | |
3cfe6dfd JB |
679 | struct Lisp_Marker |
680 | { | |
5bfac5a9 RS |
681 | int type : 16; /* = Lisp_Misc_Marker */ |
682 | int spacer : 15; | |
683 | /* 1 means normal insertion at the marker's position | |
684 | leaves the marker after the inserted text. */ | |
685 | int insertion_type : 1; | |
3cfe6dfd JB |
686 | struct buffer *buffer; |
687 | Lisp_Object chain; | |
688 | int bufpos; | |
3cfe6dfd JB |
689 | }; |
690 | ||
ee4c9ce4 KH |
691 | /* Forwarding pointer to an int variable. |
692 | This is allowed only in the value cell of a symbol, | |
693 | and it means that the symbol's value really lives in the | |
694 | specified int variable. */ | |
695 | struct Lisp_Intfwd | |
84d1833e | 696 | { |
5bfac5a9 RS |
697 | int type : 16; /* = Lisp_Misc_Intfwd */ |
698 | int spacer : 16; | |
ee4c9ce4 KH |
699 | int *intvar; |
700 | }; | |
701 | ||
702 | /* Boolean forwarding pointer to an int variable. | |
703 | This is like Lisp_Intfwd except that the ostensible | |
704 | "value" of the symbol is t if the int variable is nonzero, | |
705 | nil if it is zero. */ | |
706 | struct Lisp_Boolfwd | |
707 | { | |
5bfac5a9 RS |
708 | int type : 16; /* = Lisp_Misc_Boolfwd */ |
709 | int spacer : 16; | |
ee4c9ce4 KH |
710 | int *boolvar; |
711 | }; | |
712 | ||
713 | /* Forwarding pointer to a Lisp_Object variable. | |
714 | This is allowed only in the value cell of a symbol, | |
715 | and it means that the symbol's value really lives in the | |
716 | specified variable. */ | |
717 | struct Lisp_Objfwd | |
718 | { | |
5bfac5a9 RS |
719 | int type : 16; /* = Lisp_Misc_Objfwd */ |
720 | int spacer : 16; | |
ee4c9ce4 KH |
721 | Lisp_Object *objvar; |
722 | }; | |
723 | ||
724 | /* Like Lisp_Objfwd except that value lives in a slot in the | |
725 | current buffer. Value is byte index of slot within buffer. */ | |
726 | struct Lisp_Buffer_Objfwd | |
727 | { | |
5bfac5a9 RS |
728 | int type : 16; /* = Lisp_Misc_Buffer_Objfwd */ |
729 | int spacer : 16; | |
ee4c9ce4 | 730 | int offset; |
84d1833e KH |
731 | }; |
732 | ||
7d65f1c2 KH |
733 | /* Used in a symbol value cell when the symbol's value is per-buffer. |
734 | The actual contents resemble a cons cell which starts a list like this: | |
735 | (REALVALUE BUFFER CURRENT-ALIST-ELEMENT . DEFAULT-VALUE). | |
736 | ||
ce7d8eec KH |
737 | The cons-like structure is for historical reasons; it might be better |
738 | to just put these elements into the struct, now. | |
739 | ||
7d65f1c2 KH |
740 | BUFFER is the last buffer for which this symbol's value was |
741 | made up to date. | |
742 | ||
743 | CURRENT-ALIST-ELEMENT is a pointer to an element of BUFFER's | |
744 | local_var_alist, that being the element whose car is this | |
745 | variable. Or it can be a pointer to the | |
746 | (CURRENT-ALIST-ELEMENT . DEFAULT-VALUE), | |
747 | if BUFFER does not have an element in its alist for this | |
748 | variable (that is, if BUFFER sees the default value of this | |
749 | variable). | |
750 | ||
751 | If we want to examine or set the value and BUFFER is current, | |
99a3d506 | 752 | we just examine or set REALVALUE. If BUFFER is not current, we |
7d65f1c2 KH |
753 | store the current REALVALUE value into CURRENT-ALIST-ELEMENT, |
754 | then find the appropriate alist element for the buffer now | |
755 | current and set up CURRENT-ALIST-ELEMENT. Then we set | |
756 | REALVALUE out of that element, and store into BUFFER. | |
757 | ||
758 | If we are setting the variable and the current buffer does not | |
759 | have an alist entry for this variable, an alist entry is | |
760 | created. | |
761 | ||
762 | Note that REALVALUE can be a forwarding pointer. Each time it | |
763 | is examined or set, forwarding must be done. Each time we | |
764 | switch buffers, buffer-local variables which forward into C | |
765 | variables are swapped immediately, so the C code can assume | |
766 | that they are always up to date. | |
767 | ||
768 | Lisp_Misc_Buffer_Local_Value and Lisp_Misc_Some_Buffer_Local_Value | |
769 | use the same substructure. The difference is that with the latter, | |
770 | merely setting the variable while some buffer is current | |
771 | does not cause that buffer to have its own local value of this variable. | |
772 | Only make-local-variable does that. */ | |
773 | struct Lisp_Buffer_Local_Value | |
774 | { | |
5bfac5a9 RS |
775 | int type : 16; /* = Lisp_Misc_Buffer_Local_Value |
776 | or Lisp_Misc_Some_Buffer_Local_Value */ | |
777 | int spacer : 16; | |
7d65f1c2 KH |
778 | Lisp_Object car, cdr; |
779 | }; | |
780 | ||
ce7d8eec KH |
781 | /* In an overlay object, the mark bit of the plist is used as the GC mark. |
782 | START and END are markers in the overlay's buffer, and | |
783 | PLIST is the overlay's property list. */ | |
784 | struct Lisp_Overlay | |
785 | { | |
5bfac5a9 RS |
786 | int type : 16; /* = Lisp_Misc_Overlay */ |
787 | int spacer : 16; | |
ce7d8eec KH |
788 | Lisp_Object start, end, plist; |
789 | }; | |
5bfac5a9 | 790 | |
f334de0e KH |
791 | /* Like Lisp_Objfwd except that value lives in a slot in the |
792 | current perdisplay. */ | |
793 | struct Lisp_Display_Objfwd | |
794 | { | |
795 | int type : 16; /* = Lisp_Misc_Display_Objfwd */ | |
796 | int spacer : 16; | |
797 | int offset; | |
798 | }; | |
799 | ||
5bfac5a9 | 800 | |
84d1833e KH |
801 | union Lisp_Misc |
802 | { | |
53ea07e1 | 803 | int type : 16; |
84d1833e KH |
804 | struct Lisp_Free u_free; |
805 | struct Lisp_Marker u_marker; | |
ee4c9ce4 KH |
806 | struct Lisp_Intfwd u_intfwd; |
807 | struct Lisp_Boolfwd u_boolfwd; | |
808 | struct Lisp_Objfwd u_objfwd; | |
809 | struct Lisp_Buffer_Objfwd u_buffer_objfwd; | |
7d65f1c2 | 810 | struct Lisp_Buffer_Local_Value u_buffer_local_value; |
ce7d8eec | 811 | struct Lisp_Overlay u_overlay; |
f334de0e | 812 | struct Lisp_Display_Objfwd u_display_objfwd; |
84d1833e | 813 | }; |
7c06ac2b | 814 | \f |
3cfe6dfd JB |
815 | #ifdef LISP_FLOAT_TYPE |
816 | /* Optional Lisp floating point type */ | |
817 | struct Lisp_Float | |
818 | { | |
819 | Lisp_Object type; /* essentially used for mark-bit | |
820 | and chaining when on free-list */ | |
821 | double data; | |
822 | }; | |
823 | #endif /* LISP_FLOAT_TYPE */ | |
824 | ||
825 | /* A character, declared with the following typedef, is a member | |
99a3d506 | 826 | of some character set associated with the current buffer. */ |
b2ba7b00 RS |
827 | #ifndef _UCHAR_T /* Protect against something in ctab.h on AIX. */ |
828 | #define _UCHAR_T | |
3cfe6dfd | 829 | typedef unsigned char UCHAR; |
b2ba7b00 | 830 | #endif |
3cfe6dfd JB |
831 | |
832 | /* Meanings of slots in a Lisp_Compiled: */ | |
833 | ||
834 | #define COMPILED_ARGLIST 0 | |
835 | #define COMPILED_BYTECODE 1 | |
836 | #define COMPILED_CONSTANTS 2 | |
837 | #define COMPILED_STACK_DEPTH 3 | |
838 | #define COMPILED_DOC_STRING 4 | |
839 | #define COMPILED_INTERACTIVE 5 | |
88dbfee5 | 840 | |
d03f79ef JB |
841 | /* Flag bits in a character. These also get used in termhooks.h. |
842 | Richard Stallman <rms@gnu.ai.mit.edu> thinks that MULE | |
7c06ac2b RS |
843 | (MUlti-Lingual Emacs) might need 22 bits for the character value |
844 | itself, so we probably shouldn't use any bits lower than 0x0400000. */ | |
845 | #define CHAR_ALT (0x0400000) | |
846 | #define CHAR_SUPER (0x0800000) | |
847 | #define CHAR_HYPER (0x1000000) | |
848 | #define CHAR_SHIFT (0x2000000) | |
849 | #define CHAR_CTL (0x4000000) | |
850 | #define CHAR_META (0x8000000) | |
703f2808 | 851 | |
e6faba7f RS |
852 | #ifdef USE_X_TOOLKIT |
853 | #ifdef NO_UNION_TYPE | |
854 | /* Use this for turning a (void *) into a Lisp_Object, as when the | |
855 | Lisp_Object is passed into a toolkit callback function. */ | |
856 | #define VOID_TO_LISP(larg,varg) \ | |
857 | do { ((larg) = ((Lisp_Object) (varg))); } while (0) | |
858 | #define CVOID_TO_LISP VOID_TO_LISP | |
859 | ||
860 | /* Use this for turning a Lisp_Object into a (void *), as when the | |
861 | Lisp_Object is passed into a toolkit callback function. */ | |
862 | #define LISP_TO_VOID(larg) ((void *) (larg)) | |
863 | #define LISP_TO_CVOID(varg) ((const void *) (larg)) | |
864 | ||
865 | #else /* not NO_UNION_TYPE */ | |
866 | /* Use this for turning a (void *) into a Lisp_Object, as when the | |
867 | Lisp_Object is passed into a toolkit callback function. */ | |
868 | #define VOID_TO_LISP(larg,varg) \ | |
869 | do { ((larg).v = (void *) (varg)); } while (0) | |
870 | #define CVOID_TO_LISP(larg,varg) \ | |
871 | do { ((larg).cv = (const void *) (varg)); } while (0) | |
872 | ||
873 | /* Use this for turning a Lisp_Object into a (void *), as when the | |
874 | Lisp_Object is passed into a toolkit callback function. */ | |
875 | #define LISP_TO_VOID(larg) ((larg).v) | |
876 | #define LISP_TO_CVOID(larg) ((larg).cv) | |
877 | #endif /* not NO_UNION_TYPE */ | |
878 | #endif /* USE_X_TOOLKIT */ | |
879 | ||
703f2808 JB |
880 | \f |
881 | /* The glyph datatype, used to represent characters on the display. */ | |
882 | ||
883 | /* The low eight bits are the character code, and the bits above them | |
884 | are the numeric face ID. If FID is the face ID of a glyph on a | |
885 | frame F, then F->display.x->faces[FID] contains the description of | |
886 | that face. This is an int instead of a short, so we can support a | |
887 | good bunch of face ID's; given that we have no mechanism for | |
888 | tossing unused frame face ID's yet, we'll probably run out of 255 | |
889 | pretty quickly. */ | |
890 | #define GLYPH unsigned int | |
891 | ||
87485d6f | 892 | #ifdef HAVE_FACES |
49b0dd75 KH |
893 | /* The FAST macros assume that we already know we're in an X window. */ |
894 | ||
703f2808 | 895 | /* Given a character code and a face ID, return the appropriate glyph. */ |
49b0dd75 | 896 | #define FAST_MAKE_GLYPH(char, face) ((char) | ((face) << 8)) |
703f2808 JB |
897 | |
898 | /* Return a glyph's character code. */ | |
49b0dd75 | 899 | #define FAST_GLYPH_CHAR(glyph) ((glyph) & 0xff) |
703f2808 JB |
900 | |
901 | /* Return a glyph's face ID. */ | |
49b0dd75 KH |
902 | #define FAST_GLYPH_FACE(glyph) (((glyph) >> 8) & ((1 << 24) - 1)) |
903 | ||
904 | /* Slower versions that test the frame type first. */ | |
905 | #define MAKE_GLYPH(f, char, face) (FRAME_TERMCAP_P (f) ? (char) \ | |
906 | : FAST_MAKE_GLYPH (char, face)) | |
907 | #define GLYPH_CHAR(f, g) (FRAME_TERMCAP_P (f) ? (g) : FAST_GLYPH_CHAR (g)) | |
908 | #define GLYPH_FACE(f, g) (FRAME_TERMCAP_P (f) ? (0) : FAST_GLYPH_FACE (g)) | |
87485d6f | 909 | #else /* not HAVE_FACES */ |
49b0dd75 KH |
910 | #define MAKE_GLYPH(f, char, face) (char) |
911 | #define GLYPH_CHAR(f, g) (g) | |
912 | #define GLYPH_FACE(f, g) (g) | |
87485d6f | 913 | #endif /* not HAVE_FACES */ |
703f2808 | 914 | |
4606cc9d RS |
915 | /* The ID of the mode line highlighting face. */ |
916 | #define GLYPH_MODE_LINE_FACE 1 | |
3cfe6dfd JB |
917 | \f |
918 | /* Data type checking */ | |
919 | ||
efb859b4 | 920 | #define NILP(x) (XFASTINT (x) == XFASTINT (Qnil)) |
f498e3b2 | 921 | #define GC_NILP(x) GC_EQ (x, Qnil) |
3cfe6dfd | 922 | |
4746118a | 923 | #ifdef LISP_FLOAT_TYPE |
c5af3bb9 | 924 | #define NUMBERP(x) (INTEGERP (x) || FLOATP (x)) |
c1a2bfad | 925 | #define GC_NUMBERP(x) (GC_INTEGERP (x) || GC_FLOATP (x)) |
4746118a | 926 | #else |
c5af3bb9 | 927 | #define NUMBERP(x) (INTEGERP (x)) |
c1a2bfad | 928 | #define GC_NUMBERP(x) (GC_INTEGERP (x)) |
4746118a | 929 | #endif |
a4a9f09f | 930 | #define NATNUMP(x) (INTEGERP (x) && XINT (x) >= 0) |
c1a2bfad | 931 | #define GC_NATNUMP(x) (GC_INTEGERP (x) && XINT (x) >= 0) |
4746118a | 932 | |
edfa9106 | 933 | #define INTEGERP(x) (XTYPE ((x)) == Lisp_Int) |
c1a2bfad | 934 | #define GC_INTEGERP(x) (XGCTYPE ((x)) == Lisp_Int) |
edfa9106 | 935 | #define SYMBOLP(x) (XTYPE ((x)) == Lisp_Symbol) |
c1a2bfad | 936 | #define GC_SYMBOLP(x) (XGCTYPE ((x)) == Lisp_Symbol) |
84d1833e | 937 | #define MISCP(x) (XTYPE ((x)) == Lisp_Misc) |
c1a2bfad | 938 | #define GC_MISCP(x) (XGCTYPE ((x)) == Lisp_Misc) |
b5088f80 KH |
939 | #define VECTORLIKEP(x) (XTYPE ((x)) == Lisp_Vectorlike) |
940 | #define GC_VECTORLIKEP(x) (XGCTYPE ((x)) == Lisp_Vectorlike) | |
edfa9106 | 941 | #define STRINGP(x) (XTYPE ((x)) == Lisp_String) |
c1a2bfad | 942 | #define GC_STRINGP(x) (XGCTYPE ((x)) == Lisp_String) |
3cfe6dfd | 943 | #define CONSP(x) (XTYPE ((x)) == Lisp_Cons) |
c1a2bfad | 944 | #define GC_CONSP(x) (XGCTYPE ((x)) == Lisp_Cons) |
7c06ac2b | 945 | |
20280af7 | 946 | #ifdef LISP_FLOAT_TYPE |
edfa9106 | 947 | #define FLOATP(x) (XTYPE ((x)) == Lisp_Float) |
c1a2bfad | 948 | #define GC_FLOATP(x) (XGCTYPE ((x)) == Lisp_Float) |
20280af7 JB |
949 | #else |
950 | #define FLOATP(x) (0) | |
c1a2bfad | 951 | #define GC_FLOATP(x) (0) |
20280af7 | 952 | #endif |
b5088f80 KH |
953 | #define VECTORP(x) (VECTORLIKEP (x) && !(XVECTOR (x)->size & PSEUDOVECTOR_FLAG)) |
954 | #define GC_VECTORP(x) (GC_VECTORLIKEP (x) && !(XVECTOR (x)->size & PSEUDOVECTOR_FLAG)) | |
ce7d8eec | 955 | #define OVERLAYP(x) (MISCP (x) && XMISC (x)->type == Lisp_Misc_Overlay) |
c1a2bfad | 956 | #define GC_OVERLAYP(x) (GC_MISCP (x) && XMISC (x)->type == Lisp_Misc_Overlay) |
84d1833e | 957 | #define MARKERP(x) (MISCP (x) && XMISC (x)->type == Lisp_Misc_Marker) |
c1a2bfad | 958 | #define GC_MARKERP(x) (GC_MISCP (x) && XMISC (x)->type == Lisp_Misc_Marker) |
ee4c9ce4 | 959 | #define INTFWDP(x) (MISCP (x) && XMISC (x)->type == Lisp_Misc_Intfwd) |
c1a2bfad | 960 | #define GC_INTFWDP(x) (GC_MISCP (x) && XMISC (x)->type == Lisp_Misc_Intfwd) |
ee4c9ce4 | 961 | #define BOOLFWDP(x) (MISCP (x) && XMISC (x)->type == Lisp_Misc_Boolfwd) |
c1a2bfad | 962 | #define GC_BOOLFWDP(x) (GC_MISCP (x) && XMISC (x)->type == Lisp_Misc_Boolfwd) |
ee4c9ce4 | 963 | #define OBJFWDP(x) (MISCP (x) && XMISC (x)->type == Lisp_Misc_Objfwd) |
c1a2bfad | 964 | #define GC_OBJFWDP(x) (GC_MISCP (x) && XMISC (x)->type == Lisp_Misc_Objfwd) |
ee4c9ce4 | 965 | #define BUFFER_OBJFWDP(x) (MISCP (x) && XMISC (x)->type == Lisp_Misc_Buffer_Objfwd) |
c1a2bfad | 966 | #define GC_BUFFER_OBJFWDP(x) (GC_MISCP (x) && XMISC (x)->type == Lisp_Misc_Buffer_Objfwd) |
7d65f1c2 | 967 | #define BUFFER_LOCAL_VALUEP(x) (MISCP (x) && XMISC (x)->type == Lisp_Misc_Buffer_Local_Value) |
c1a2bfad | 968 | #define GC_BUFFER_LOCAL_VALUEP(x) (GC_MISCP (x) && XMISC (x)->type == Lisp_Misc_Buffer_Local_Value) |
7d65f1c2 | 969 | #define SOME_BUFFER_LOCAL_VALUEP(x) (MISCP (x) && XMISC (x)->type == Lisp_Misc_Some_Buffer_Local_Value) |
c1a2bfad | 970 | #define GC_SOME_BUFFER_LOCAL_VALUEP(x) (GC_MISCP (x) && XMISC (x)->type == Lisp_Misc_Some_Buffer_Local_Value) |
f334de0e KH |
971 | #define DISPLAY_OBJFWDP(x) (MISCP (x) && XMISC (x)->type == Lisp_Misc_Display_Objfwd) |
972 | #define GC_DISPLAY_OBJFWDP(x) (GC_MISCP (x) && XMISC (x)->type == Lisp_Misc_Display_Objfwd) | |
edfa9106 | 973 | |
7c06ac2b | 974 | |
303a5c93 | 975 | /* True if object X is a pseudovector whose code is CODE. */ |
7c06ac2b RS |
976 | #define PSEUDOVECTORP(x, code) \ |
977 | (VECTORLIKEP (x) \ | |
978 | && (((XVECTOR (x)->size & (PSEUDOVECTOR_FLAG | (code)))) \ | |
979 | == (PSEUDOVECTOR_FLAG | (code)))) | |
980 | ||
303a5c93 | 981 | /* True if object X is a pseudovector whose code is CODE. |
7c06ac2b RS |
982 | This one works during GC. */ |
983 | #define GC_PSEUDOVECTORP(x, code) \ | |
984 | (GC_VECTORLIKEP (x) \ | |
985 | && (((XVECTOR (x)->size & (PSEUDOVECTOR_FLAG | (code)))) \ | |
986 | == (PSEUDOVECTOR_FLAG | (code)))) | |
987 | ||
988 | /* Test for specific pseudovector types. */ | |
989 | #define WINDOW_CONFIGURATIONP(x) PSEUDOVECTORP (x, PVEC_WINDOW_CONFIGURATION) | |
990 | #define GC_WINDOW_CONFIGURATIONP(x) GC_PSEUDOVECTORP (x, PVEC_WINDOW_CONFIGURATION) | |
991 | #define PROCESSP(x) PSEUDOVECTORP (x, PVEC_PROCESS) | |
992 | #define GC_PROCESSP(x) GC_PSEUDOVECTORP (x, PVEC_PROCESS) | |
993 | #define WINDOWP(x) PSEUDOVECTORP (x, PVEC_WINDOW) | |
994 | #define GC_WINDOWP(x) GC_PSEUDOVECTORP (x, PVEC_WINDOW) | |
995 | #define SUBRP(x) PSEUDOVECTORP (x, PVEC_SUBR) | |
996 | #define GC_SUBRP(x) GC_PSEUDOVECTORP (x, PVEC_SUBR) | |
997 | #define COMPILEDP(x) PSEUDOVECTORP (x, PVEC_COMPILED) | |
998 | #define GC_COMPILEDP(x) GC_PSEUDOVECTORP (x, PVEC_COMPILED) | |
99a3d506 RS |
999 | #define BUFFERP(x) PSEUDOVECTORP (x, PVEC_BUFFER) |
1000 | #define GC_BUFFERP(x) GC_PSEUDOVECTORP (x, PVEC_BUFFER) | |
7c06ac2b RS |
1001 | |
1002 | #ifdef MULTI_FRAME | |
1003 | #define FRAMEP(x) PSEUDOVECTORP (x, PVEC_FRAME) | |
1004 | #define GC_FRAMEP(x) GC_PSEUDOVECTORP (x, PVEC_FRAME) | |
1005 | #else | |
1006 | #ifdef HAVE_MOUSE | |
1007 | /* We could use this in the !HAVE_MOUSE case also, but we prefer a compile-time | |
1008 | error message in case FRAMEP is used. */ | |
1009 | #define FRAMEP(x) (EQ (x, Fselected_frame ())) | |
1010 | #define GC_FRAMEP(x) (GC_EQ (x, Fselected_frame ())) | |
1011 | #endif | |
1012 | #endif | |
1013 | ||
1014 | \f | |
3cfe6dfd | 1015 | #define EQ(x, y) (XFASTINT (x) == XFASTINT (y)) |
f498e3b2 | 1016 | #define GC_EQ(x, y) (XGCTYPE (x) == XGCTYPE (y) && XPNTR (x) == XPNTR (y)) |
4746118a | 1017 | |
3cfe6dfd | 1018 | #define CHECK_LIST(x, i) \ |
c5af3bb9 | 1019 | do { if (!CONSP ((x)) && !NILP (x)) x = wrong_type_argument (Qlistp, (x)); } while (0) |
3cfe6dfd JB |
1020 | |
1021 | #define CHECK_STRING(x, i) \ | |
c5af3bb9 | 1022 | do { if (!STRINGP ((x))) x = wrong_type_argument (Qstringp, (x)); } while (0) |
3cfe6dfd JB |
1023 | |
1024 | #define CHECK_CONS(x, i) \ | |
c5af3bb9 | 1025 | do { if (!CONSP ((x))) x = wrong_type_argument (Qconsp, (x)); } while (0) |
3cfe6dfd JB |
1026 | |
1027 | #define CHECK_SYMBOL(x, i) \ | |
c5af3bb9 | 1028 | do { if (!SYMBOLP ((x))) x = wrong_type_argument (Qsymbolp, (x)); } while (0) |
3cfe6dfd JB |
1029 | |
1030 | #define CHECK_VECTOR(x, i) \ | |
c5af3bb9 | 1031 | do { if (!VECTORP ((x))) x = wrong_type_argument (Qvectorp, (x)); } while (0) |
3cfe6dfd JB |
1032 | |
1033 | #define CHECK_BUFFER(x, i) \ | |
c5af3bb9 | 1034 | do { if (!BUFFERP ((x))) x = wrong_type_argument (Qbufferp, (x)); } while (0) |
3cfe6dfd JB |
1035 | |
1036 | #define CHECK_WINDOW(x, i) \ | |
c5af3bb9 | 1037 | do { if (!WINDOWP ((x))) x = wrong_type_argument (Qwindowp, (x)); } while (0) |
3cfe6dfd | 1038 | |
03273ec5 JB |
1039 | /* This macro rejects windows on the interior of the window tree as |
1040 | "dead", which is what we want; this is an argument-checking macro, and | |
1041 | the user should never get access to interior windows. | |
1042 | ||
1043 | A window of any sort, leaf or interior, is dead iff the buffer, | |
1044 | vchild, and hchild members are all nil. */ | |
1045 | ||
1046 | #define CHECK_LIVE_WINDOW(x, i) \ | |
2ad18bfd | 1047 | do { \ |
c5af3bb9 | 1048 | if (!WINDOWP ((x)) \ |
03273ec5 | 1049 | || NILP (XWINDOW ((x))->buffer)) \ |
806b4d9b | 1050 | x = wrong_type_argument (Qwindow_live_p, (x)); \ |
2ad18bfd | 1051 | } while (0) |
03273ec5 | 1052 | |
3cfe6dfd | 1053 | #define CHECK_PROCESS(x, i) \ |
c5af3bb9 | 1054 | do { if (!PROCESSP ((x))) x = wrong_type_argument (Qprocessp, (x)); } while (0) |
3cfe6dfd JB |
1055 | |
1056 | #define CHECK_NUMBER(x, i) \ | |
c5af3bb9 | 1057 | do { if (!INTEGERP ((x))) x = wrong_type_argument (Qintegerp, (x)); } while (0) |
3cfe6dfd JB |
1058 | |
1059 | #define CHECK_NATNUM(x, i) \ | |
a4a9f09f | 1060 | do { if (!NATNUMP (x)) x = wrong_type_argument (Qwholenump, (x)); } while (0) |
3cfe6dfd JB |
1061 | |
1062 | #define CHECK_MARKER(x, i) \ | |
c5af3bb9 | 1063 | do { if (!MARKERP ((x))) x = wrong_type_argument (Qmarkerp, (x)); } while (0) |
3cfe6dfd JB |
1064 | |
1065 | #define CHECK_NUMBER_COERCE_MARKER(x, i) \ | |
221f4ef3 | 1066 | do { if (MARKERP ((x))) XSETFASTINT (x, marker_position (x)); \ |
c5af3bb9 | 1067 | else if (!INTEGERP ((x))) x = wrong_type_argument (Qinteger_or_marker_p, (x)); } while (0) |
3cfe6dfd JB |
1068 | |
1069 | #ifdef LISP_FLOAT_TYPE | |
1070 | ||
1071 | #ifndef DBL_DIG | |
1072 | #define DBL_DIG 20 | |
1073 | #endif | |
1074 | ||
1075 | #define XFLOATINT(n) extract_float((n)) | |
1076 | ||
1077 | #define CHECK_FLOAT(x, i) \ | |
c5af3bb9 | 1078 | do { if (!FLOATP (x)) \ |
2ad18bfd | 1079 | x = wrong_type_argument (Qfloatp, (x)); } while (0) |
3cfe6dfd JB |
1080 | |
1081 | #define CHECK_NUMBER_OR_FLOAT(x, i) \ | |
c5af3bb9 | 1082 | do { if (!FLOATP (x) && !INTEGERP (x)) \ |
2ad18bfd | 1083 | x = wrong_type_argument (Qnumberp, (x)); } while (0) |
3cfe6dfd JB |
1084 | |
1085 | #define CHECK_NUMBER_OR_FLOAT_COERCE_MARKER(x, i) \ | |
221f4ef3 | 1086 | do { if (MARKERP (x)) XSETFASTINT (x, marker_position (x)); \ |
c5af3bb9 | 1087 | else if (!INTEGERP (x) && !FLOATP (x)) \ |
2ad18bfd | 1088 | x = wrong_type_argument (Qnumber_or_marker_p, (x)); } while (0) |
3cfe6dfd JB |
1089 | |
1090 | #else /* Not LISP_FLOAT_TYPE */ | |
1091 | ||
1092 | #define CHECK_NUMBER_OR_FLOAT CHECK_NUMBER | |
1093 | ||
1094 | #define CHECK_NUMBER_OR_FLOAT_COERCE_MARKER CHECK_NUMBER_COERCE_MARKER | |
1095 | ||
1096 | #define XFLOATINT(n) XINT((n)) | |
1097 | #endif /* LISP_FLOAT_TYPE */ | |
1098 | ||
20280af7 | 1099 | #define CHECK_OVERLAY(x, i) \ |
c5af3bb9 | 1100 | do { if (!OVERLAYP ((x))) x = wrong_type_argument (Qoverlayp, (x));} while (0) |
20280af7 | 1101 | |
3cfe6dfd JB |
1102 | /* Cast pointers to this type to compare them. Some machines want int. */ |
1103 | #ifndef PNTR_COMPARISON_TYPE | |
1104 | #define PNTR_COMPARISON_TYPE unsigned int | |
1105 | #endif | |
1106 | \f | |
1107 | /* Define a built-in function for calling from Lisp. | |
1108 | `lname' should be the name to give the function in Lisp, | |
1109 | as a null-terminated C string. | |
1110 | `fnname' should be the name of the function in C. | |
1111 | By convention, it starts with F. | |
1112 | `sname' should be the name for the C constant structure | |
1113 | that records information on this function for internal use. | |
1114 | By convention, it should be the same as `fnname' but with S instead of F. | |
1115 | It's too bad that C macros can't compute this from `fnname'. | |
1116 | `minargs' should be a number, the minimum number of arguments allowed. | |
1117 | `maxargs' should be a number, the maximum number of arguments allowed, | |
1118 | or else MANY or UNEVALLED. | |
1119 | MANY means pass a vector of evaluated arguments, | |
1120 | in the form of an integer number-of-arguments | |
1121 | followed by the address of a vector of Lisp_Objects | |
1122 | which contains the argument values. | |
1123 | UNEVALLED means pass the list of unevaluated arguments | |
1124 | `prompt' says how to read arguments for an interactive call. | |
eab9d423 | 1125 | See the doc string for `interactive'. |
3cfe6dfd | 1126 | A null string means call interactively with no arguments. |
eab9d423 | 1127 | `doc' is documentation for the user. */ |
3cfe6dfd | 1128 | |
5125ca93 | 1129 | #if !defined (__STDC__) || defined (USE_NONANSI_DEFUN) |
7c06ac2b RS |
1130 | #define DEFUN(lname, fnname, sname, minargs, maxargs, prompt, doc) \ |
1131 | Lisp_Object fnname (); \ | |
1132 | struct Lisp_Subr sname = \ | |
1133 | { PVEC_SUBR | (sizeof (struct Lisp_Subr) / sizeof (EMACS_INT)), \ | |
1134 | fnname, minargs, maxargs, lname, prompt, 0}; \ | |
3cfe6dfd JB |
1135 | Lisp_Object fnname |
1136 | ||
c451d7b1 RS |
1137 | #else |
1138 | ||
1139 | /* This version of DEFUN declares a function prototype with the right | |
99a3d506 | 1140 | arguments, so we can catch errors with maxargs at compile-time. */ |
7c06ac2b RS |
1141 | #define DEFUN(lname, fnname, sname, minargs, maxargs, prompt, doc) \ |
1142 | Lisp_Object fnname DEFUN_ARGS_ ## maxargs ; \ | |
1143 | struct Lisp_Subr sname = \ | |
1144 | { PVEC_SUBR | (sizeof (struct Lisp_Subr) / sizeof (EMACS_INT)), \ | |
1145 | fnname, minargs, maxargs, lname, prompt, 0}; \ | |
c451d7b1 RS |
1146 | Lisp_Object fnname |
1147 | ||
1148 | /* Note that the weird token-substitution semantics of ANSI C makes | |
99a3d506 | 1149 | this work for MANY and UNEVALLED. */ |
c451d7b1 RS |
1150 | #define DEFUN_ARGS_MANY (int, Lisp_Object *) |
1151 | #define DEFUN_ARGS_UNEVALLED (Lisp_Object) | |
1152 | #define DEFUN_ARGS_0 (void) | |
1153 | #define DEFUN_ARGS_1 (Lisp_Object) | |
1154 | #define DEFUN_ARGS_2 (Lisp_Object, Lisp_Object) | |
1155 | #define DEFUN_ARGS_3 (Lisp_Object, Lisp_Object, Lisp_Object) | |
1156 | #define DEFUN_ARGS_4 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object) | |
1157 | #define DEFUN_ARGS_5 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \ | |
1158 | Lisp_Object) | |
1159 | #define DEFUN_ARGS_6 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \ | |
1160 | Lisp_Object, Lisp_Object) | |
1161 | #define DEFUN_ARGS_7 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \ | |
1162 | Lisp_Object, Lisp_Object, Lisp_Object) | |
1163 | #endif | |
1164 | ||
3cfe6dfd | 1165 | /* defsubr (Sname); |
99a3d506 | 1166 | is how we define the symbol for function `name' at start-up time. */ |
3cfe6dfd JB |
1167 | extern void defsubr (); |
1168 | ||
1169 | #define MANY -2 | |
1170 | #define UNEVALLED -1 | |
1171 | ||
1172 | extern void defvar_lisp (); | |
1173 | extern void defvar_bool (); | |
1174 | extern void defvar_int (); | |
4dc85e89 | 1175 | extern void defvar_display (); |
3cfe6dfd JB |
1176 | |
1177 | /* Macros we use to define forwarded Lisp variables. | |
1178 | These are used in the syms_of_FILENAME functions. */ | |
1179 | ||
3cfe6dfd JB |
1180 | #define DEFVAR_LISP(lname, vname, doc) defvar_lisp (lname, vname) |
1181 | #define DEFVAR_LISP_NOPRO(lname, vname, doc) defvar_lisp_nopro (lname, vname) | |
1182 | #define DEFVAR_BOOL(lname, vname, doc) defvar_bool (lname, vname) | |
1183 | #define DEFVAR_INT(lname, vname, doc) defvar_int (lname, vname) | |
ef15f270 JB |
1184 | #define DEFVAR_PER_BUFFER(lname, vname, type, doc) \ |
1185 | defvar_per_buffer (lname, vname, type, 0) | |
3abccc4b KH |
1186 | #define DEFVAR_DISPLAY(lname, vname, doc) \ |
1187 | defvar_display (lname, \ | |
38341c5f KH |
1188 | (int)((char *)(¤t_perdisplay->vname) \ |
1189 | - (char *)current_perdisplay)) | |
3cfe6dfd | 1190 | \f |
78ca380c JB |
1191 | /* Structure for recording Lisp call stack for backtrace purposes. */ |
1192 | ||
1193 | /* The special binding stack holds the outer values of variables while | |
1194 | they are bound by a function application or a let form, stores the | |
1195 | code to be executed for Lisp unwind-protect forms, and stores the C | |
1196 | functions to be called for record_unwind_protect. | |
1197 | ||
1198 | If func is non-zero, undoing this binding applies func to old_value; | |
1199 | This implements record_unwind_protect. | |
1200 | If func is zero and symbol is nil, undoing this binding evaluates | |
1201 | the list of forms in old_value; this implements Lisp's unwind-protect | |
1202 | form. | |
1203 | Otherwise, undoing this binding stores old_value as symbol's value; this | |
1204 | undoes the bindings made by a let form or function call. */ | |
3cfe6dfd JB |
1205 | struct specbinding |
1206 | { | |
1207 | Lisp_Object symbol, old_value; | |
1208 | Lisp_Object (*func) (); | |
1209 | Lisp_Object unused; /* Dividing by 16 is faster than by 12 */ | |
1210 | }; | |
1211 | ||
1212 | extern struct specbinding *specpdl; | |
1213 | extern struct specbinding *specpdl_ptr; | |
1214 | extern int specpdl_size; | |
1215 | ||
78ca380c | 1216 | /* Everything needed to describe an active condition case. */ |
3cfe6dfd JB |
1217 | struct handler |
1218 | { | |
78ca380c | 1219 | /* The handler clauses and variable from the condition-case form. */ |
3cfe6dfd JB |
1220 | Lisp_Object handler; |
1221 | Lisp_Object var; | |
22bbbd42 RS |
1222 | /* Fsignal stores here the condition-case clause that applies, |
1223 | and Fcondition_case thus knows which clause to run. */ | |
1224 | Lisp_Object chosen_clause; | |
78ca380c JB |
1225 | |
1226 | /* Used to effect the longjump out to the handler. */ | |
3cfe6dfd | 1227 | struct catchtag *tag; |
78ca380c JB |
1228 | |
1229 | /* The next enclosing handler. */ | |
3cfe6dfd JB |
1230 | struct handler *next; |
1231 | }; | |
1232 | ||
1233 | extern struct handler *handlerlist; | |
1234 | ||
1235 | extern struct catchtag *catchlist; | |
1236 | extern struct backtrace *backtrace_list; | |
1237 | ||
22bbbd42 RS |
1238 | extern Lisp_Object memory_signal_data; |
1239 | ||
3cfe6dfd JB |
1240 | /* An address near the bottom of the stack. |
1241 | Tells GC how to save a copy of the stack. */ | |
1242 | extern char *stack_bottom; | |
1243 | ||
99a3d506 | 1244 | /* Check quit-flag and quit if it is non-nil. */ |
3cfe6dfd JB |
1245 | |
1246 | #define QUIT \ | |
efb859b4 | 1247 | if (!NILP (Vquit_flag) && NILP (Vinhibit_quit)) \ |
3cfe6dfd JB |
1248 | { Vquit_flag = Qnil; Fsignal (Qquit, Qnil); } |
1249 | ||
1250 | /* Nonzero if ought to quit now. */ | |
1251 | ||
efb859b4 | 1252 | #define QUITP (!NILP (Vquit_flag) && NILP (Vinhibit_quit)) |
3cfe6dfd JB |
1253 | \f |
1254 | /* 1 if CH is upper case. */ | |
1255 | ||
7b15897a JB |
1256 | #define UPPERCASEP(CH) \ |
1257 | (XSTRING (current_buffer->downcase_table)->data[CH] != (CH)) | |
3cfe6dfd JB |
1258 | |
1259 | /* 1 if CH is lower case. */ | |
1260 | ||
1261 | #define LOWERCASEP(CH) \ | |
7b15897a JB |
1262 | (!UPPERCASEP (CH) \ |
1263 | && XSTRING (current_buffer->upcase_table)->data[CH] != (CH)) | |
3cfe6dfd JB |
1264 | |
1265 | /* 1 if CH is neither upper nor lower case. */ | |
1266 | ||
1267 | #define NOCASEP(CH) (XSTRING (current_buffer->upcase_table)->data[CH] == (CH)) | |
1268 | ||
1269 | /* Upcase a character, or make no change if that cannot be done. */ | |
1270 | ||
7b15897a JB |
1271 | #define UPCASE(CH) \ |
1272 | (XSTRING (current_buffer->downcase_table)->data[CH] == (CH) \ | |
1273 | ? UPCASE1 (CH) : (CH)) | |
3cfe6dfd JB |
1274 | |
1275 | /* Upcase a character known to be not upper case. */ | |
1276 | ||
1277 | #define UPCASE1(CH) (XSTRING (current_buffer->upcase_table)->data[CH]) | |
1278 | ||
99a3d506 | 1279 | /* Downcase a character, or make no change if that cannot be done. */ |
3cfe6dfd JB |
1280 | |
1281 | #define DOWNCASE(CH) (XSTRING (current_buffer->downcase_table)->data[CH]) | |
1282 | ||
1283 | /* Current buffer's map from characters to lower-case characters. */ | |
1284 | ||
1285 | #define DOWNCASE_TABLE XSTRING (current_buffer->downcase_table)->data | |
1286 | ||
1287 | /* Table mapping each char to the next char with the same lowercase version. | |
1288 | This mapping is a no-op only for characters that don't have case. */ | |
1289 | #define UPCASE_TABLE XSTRING (current_buffer->upcase_table)->data | |
1290 | ||
1291 | extern Lisp_Object Vascii_downcase_table, Vascii_upcase_table; | |
a21cfa11 | 1292 | extern Lisp_Object Vascii_canon_table, Vascii_eqv_table; |
3cfe6dfd | 1293 | \f |
99a3d506 | 1294 | /* Number of bytes of structure consed since last GC. */ |
3cfe6dfd JB |
1295 | |
1296 | extern int consing_since_gc; | |
1297 | ||
99a3d506 | 1298 | /* Threshold for doing another gc. */ |
3cfe6dfd JB |
1299 | |
1300 | extern int gc_cons_threshold; | |
1301 | ||
99a3d506 | 1302 | /* Structure for recording stack slots that need marking. */ |
3cfe6dfd JB |
1303 | |
1304 | /* This is a chain of structures, each of which points at a Lisp_Object variable | |
1305 | whose value should be marked in garbage collection. | |
1306 | Normally every link of the chain is an automatic variable of a function, | |
1307 | and its `val' points to some argument or local variable of the function. | |
1308 | On exit to the function, the chain is set back to the value it had on entry. | |
e5f55f07 BF |
1309 | This way, no link remains in the chain when the stack frame containing the |
1310 | link disappears. | |
3cfe6dfd JB |
1311 | |
1312 | Every function that can call Feval must protect in this fashion all | |
99a3d506 | 1313 | Lisp_Object variables whose contents will be used again. */ |
3cfe6dfd JB |
1314 | |
1315 | extern struct gcpro *gcprolist; | |
1316 | ||
1317 | struct gcpro | |
1318 | { | |
1319 | struct gcpro *next; | |
1320 | Lisp_Object *var; /* Address of first protected variable */ | |
1321 | int nvars; /* Number of consecutive protected variables */ | |
1322 | }; | |
1323 | ||
1324 | #define GCPRO1(varname) \ | |
1325 | {gcpro1.next = gcprolist; gcpro1.var = &varname; gcpro1.nvars = 1; \ | |
1326 | gcprolist = &gcpro1; } | |
1327 | ||
1328 | #define GCPRO2(varname1, varname2) \ | |
1329 | {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \ | |
1330 | gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \ | |
1331 | gcprolist = &gcpro2; } | |
1332 | ||
1333 | #define GCPRO3(varname1, varname2, varname3) \ | |
1334 | {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \ | |
1335 | gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \ | |
1336 | gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \ | |
1337 | gcprolist = &gcpro3; } | |
1338 | ||
1339 | #define GCPRO4(varname1, varname2, varname3, varname4) \ | |
1340 | {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \ | |
1341 | gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \ | |
1342 | gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \ | |
1343 | gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \ | |
1344 | gcprolist = &gcpro4; } | |
1345 | ||
c47b8d02 RS |
1346 | #define GCPRO5(varname1, varname2, varname3, varname4, varname5) \ |
1347 | {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \ | |
1348 | gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \ | |
1349 | gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \ | |
1350 | gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \ | |
1351 | gcpro5.next = &gcpro4; gcpro5.var = &varname5; gcpro5.nvars = 1; \ | |
1352 | gcprolist = &gcpro5; } | |
1353 | ||
99a3d506 | 1354 | /* Call staticpro (&var) to protect static variable `var'. */ |
3cfe6dfd JB |
1355 | |
1356 | void staticpro(); | |
1357 | ||
1358 | #define UNGCPRO (gcprolist = gcpro1.next) | |
1359 | ||
5db82c9d | 1360 | /* Evaluate expr, UNGCPRO, and then return the value of expr. */ |
c47b8d02 | 1361 | #define RETURN_UNGCPRO(expr) \ |
f3ca341e | 1362 | if (1) \ |
c47b8d02 RS |
1363 | { \ |
1364 | Lisp_Object ret_ungc_val; \ | |
1365 | ret_ungc_val = (expr); \ | |
1366 | UNGCPRO; \ | |
1367 | return ret_ungc_val; \ | |
1368 | } \ | |
f3ca341e | 1369 | else |
3cfe6dfd JB |
1370 | \f |
1371 | /* Defined in data.c */ | |
1372 | extern Lisp_Object Qnil, Qt, Qquote, Qlambda, Qsubr, Qunbound; | |
1373 | extern Lisp_Object Qerror_conditions, Qerror_message, Qtop_level; | |
1374 | extern Lisp_Object Qerror, Qquit, Qwrong_type_argument, Qargs_out_of_range; | |
1375 | extern Lisp_Object Qvoid_variable, Qvoid_function; | |
1376 | extern Lisp_Object Qsetting_constant, Qinvalid_read_syntax; | |
1377 | extern Lisp_Object Qinvalid_function, Qwrong_number_of_arguments, Qno_catch; | |
1378 | extern Lisp_Object Qend_of_file, Qarith_error; | |
1379 | extern Lisp_Object Qbeginning_of_buffer, Qend_of_buffer, Qbuffer_read_only; | |
83125cd7 | 1380 | extern Lisp_Object Qmark_inactive; |
3cfe6dfd | 1381 | |
59b4254d JB |
1382 | extern Lisp_Object Qrange_error, Qdomain_error, Qsingularity_error; |
1383 | extern Lisp_Object Qoverflow_error, Qunderflow_error; | |
623ed1b0 | 1384 | |
07a97bf8 RS |
1385 | extern Lisp_Object Qintegerp, Qnumberp, Qnatnump, Qwholenump; |
1386 | extern Lisp_Object Qsymbolp, Qlistp, Qconsp; | |
3cfe6dfd JB |
1387 | extern Lisp_Object Qstringp, Qarrayp, Qsequencep, Qbufferp; |
1388 | extern Lisp_Object Qchar_or_string_p, Qmarkerp, Qvectorp; | |
4de86b16 RS |
1389 | extern Lisp_Object Qinteger_or_marker_p, Qnumber_or_marker_p; |
1390 | extern Lisp_Object Qboundp, Qfboundp; | |
cde20f41 | 1391 | extern Lisp_Object Qbuffer_or_string_p; |
3cfe6dfd JB |
1392 | extern Lisp_Object Qcdr; |
1393 | ||
1394 | #ifdef LISP_FLOAT_TYPE | |
1395 | extern Lisp_Object Qfloatp, Qinteger_or_floatp, Qinteger_or_float_or_marker_p; | |
1396 | #endif /* LISP_FLOAT_TYPE */ | |
1397 | ||
ff11dfa1 | 1398 | extern Lisp_Object Qframep; |
3cfe6dfd JB |
1399 | |
1400 | extern Lisp_Object Feq (), Fnull (), Flistp (), Fconsp (), Fatom (), Fnlistp (); | |
1401 | extern Lisp_Object Fintegerp (), Fnatnump (), Fsymbolp (); | |
1402 | extern Lisp_Object Fvectorp (), Fstringp (), Farrayp (), Fsequencep (); | |
1403 | extern Lisp_Object Fbufferp (), Fmarkerp (), Fsubrp (), Fchar_or_string_p (); | |
1404 | extern Lisp_Object Finteger_or_marker_p (); | |
1405 | #ifdef LISP_FLOAT_TYPE | |
1406 | extern Lisp_Object Ffloatp(), Finteger_or_floatp(); | |
1407 | extern Lisp_Object Finteger_or_float_or_marker_p(), Ftruncate(); | |
1408 | #endif /* LISP_FLOAT_TYPE */ | |
1409 | ||
1410 | extern Lisp_Object Fcar (), Fcar_safe(), Fcdr (), Fcdr_safe(); | |
1411 | extern Lisp_Object Fsetcar (), Fsetcdr (); | |
1412 | extern Lisp_Object Fboundp (), Ffboundp (), Fmakunbound (), Ffmakunbound (); | |
1413 | extern Lisp_Object Fsymbol_function (), Fsymbol_plist (), Fsymbol_name (); | |
ffd56f97 | 1414 | extern Lisp_Object indirect_function (), Findirect_function (); |
3cfe6dfd | 1415 | extern Lisp_Object Ffset (), Fsetplist (); |
760cbdd3 | 1416 | extern Lisp_Object Fsymbol_value (), find_symbol_value (), Fset (); |
d20c2151 | 1417 | extern Lisp_Object Fdefault_value (), Fset_default (), Fdefault_boundp (); |
3cfe6dfd | 1418 | |
b8e0549d | 1419 | extern Lisp_Object Faref (), Faset (); |
3cfe6dfd | 1420 | |
f2980264 | 1421 | extern Lisp_Object Fstring_to_number (), Fnumber_to_string (); |
c6cd5420 JB |
1422 | extern Lisp_Object Feqlsign (), Fgtr (), Flss (), Fgeq (), Fleq (); |
1423 | extern Lisp_Object Fneq (), Fzerop (); | |
1424 | extern Lisp_Object Fplus (), Fminus (), Ftimes (), Fquo (), Frem (); | |
1425 | extern Lisp_Object Fmax (), Fmin (); | |
1426 | extern Lisp_Object Flogand (), Flogior (), Flogxor (), Flognot (); | |
1427 | extern Lisp_Object Flsh (), Fash (); | |
1428 | ||
3cfe6dfd JB |
1429 | extern Lisp_Object Fadd1 (), Fsub1 (); |
1430 | ||
1431 | extern Lisp_Object make_number (); | |
51cf3e31 JB |
1432 | extern Lisp_Object long_to_cons (); |
1433 | extern unsigned long cons_to_long (); | |
3cfe6dfd JB |
1434 | extern void args_out_of_range (); |
1435 | extern void args_out_of_range_3 (); | |
1436 | extern Lisp_Object wrong_type_argument (); | |
7751ddd7 | 1437 | extern void store_symval_forwarding (); |
3cfe6dfd JB |
1438 | #ifdef LISP_FLOAT_TYPE |
1439 | extern Lisp_Object Ffloat_to_int(), Fint_to_float(); | |
1440 | extern double extract_float(); | |
d20c2151 JB |
1441 | extern Lisp_Object make_float (); |
1442 | extern Lisp_Object Ffloat (); | |
3cfe6dfd JB |
1443 | #endif /* LISP_FLOAT_TYPE */ |
1444 | ||
1445 | /* Defined in fns.c */ | |
1446 | extern Lisp_Object Qstring_lessp; | |
1447 | extern Lisp_Object Vfeatures; | |
1448 | extern Lisp_Object Fidentity (), Frandom (); | |
1449 | extern Lisp_Object Flength (); | |
1450 | extern Lisp_Object Fappend (), Fconcat (), Fvconcat (), Fcopy_sequence (); | |
1451 | extern Lisp_Object Fsubstring (); | |
d20c2151 | 1452 | extern Lisp_Object Fnth (), Fnthcdr (), Fmemq (), Fassq (), Fassoc (); |
adff7f18 | 1453 | extern Lisp_Object Fmember (), Frassq (), Fdelq (), Fsort (); |
3cfe6dfd JB |
1454 | extern Lisp_Object Freverse (), Fnreverse (), Fget (), Fput (), Fequal (); |
1455 | extern Lisp_Object Ffillarray (), Fnconc (), Fmapcar (), Fmapconcat (); | |
1456 | extern Lisp_Object Fy_or_n_p (), do_yes_or_no_p (); | |
1457 | extern Lisp_Object Ffeaturep (), Frequire () , Fprovide (); | |
1458 | extern Lisp_Object concat2 (), nconc2 (); | |
1459 | extern Lisp_Object assq_no_quit (); | |
d20c2151 | 1460 | extern Lisp_Object Fcopy_alist (); |
3cfe6dfd | 1461 | |
c98adc1b KH |
1462 | /* Defined in insdel.c */ |
1463 | extern void move_gap (); | |
1464 | extern void make_gap (); | |
1465 | extern void insert (); | |
1466 | extern void insert_and_inherit (); | |
1467 | extern void insert_1 (); | |
1468 | extern void insert_from_string (); | |
1469 | extern void insert_from_buffer (); | |
1470 | extern void insert_char (); | |
1471 | extern void insert_string (); | |
1472 | extern void insert_before_markers (); | |
1473 | extern void insert_before_markers_and_inherit (); | |
1474 | extern void insert_from_string_before_markers (); | |
1475 | extern void del_range (); | |
1476 | extern void del_range_1 (); | |
1477 | extern void modify_region (); | |
1478 | extern void prepare_to_modify_buffer (); | |
1479 | extern void signal_before_change (); | |
1480 | extern void signal_after_change (); | |
1481 | ||
1482 | /* Defined in xdisp.c */ | |
1483 | extern void message (); | |
1484 | extern void message1 (); | |
1485 | extern void message1_nolog (); | |
1486 | extern void message2 (); | |
1487 | extern void message2_nolog (); | |
3d3938e1 | 1488 | extern void message_dolog (); |
eaecdb81 | 1489 | extern void message_log_maybe_newline (); |
c98adc1b | 1490 | |
3cfe6dfd JB |
1491 | /* Defined in alloc.c */ |
1492 | extern Lisp_Object Vpurify_flag; | |
ee4c9ce4 | 1493 | extern Lisp_Object Fcons (), Flist(), Fmake_list (), allocate_misc (); |
3cfe6dfd JB |
1494 | extern Lisp_Object Fmake_vector (), Fvector (), Fmake_symbol (), Fmake_marker (); |
1495 | extern Lisp_Object Fmake_string (), build_string (), make_string (); | |
88dbfee5 | 1496 | extern Lisp_Object make_event_array (), make_uninit_string (); |
3cfe6dfd JB |
1497 | extern Lisp_Object Fpurecopy (), make_pure_string (); |
1498 | extern Lisp_Object pure_cons (), make_pure_vector (); | |
1499 | extern Lisp_Object Fgarbage_collect (); | |
d20c2151 | 1500 | extern Lisp_Object Fmake_byte_code (); |
94225242 | 1501 | extern struct Lisp_Vector *allocate_vectorlike (); |
4d57802e | 1502 | extern int gc_in_progress; |
3cfe6dfd JB |
1503 | |
1504 | /* Defined in print.c */ | |
1505 | extern Lisp_Object Vprin1_to_string_buffer; | |
1506 | extern Lisp_Object Fprin1 (), Fprin1_to_string (), Fprinc (); | |
1507 | extern Lisp_Object Fterpri (), Fprint (); | |
1508 | extern Lisp_Object Vstandard_output, Qstandard_output; | |
9453ea7b | 1509 | extern Lisp_Object Qexternal_debugging_output; |
3cfe6dfd JB |
1510 | extern void temp_output_buffer_setup (), temp_output_buffer_show (); |
1511 | extern int print_level, print_escape_newlines; | |
1512 | extern Lisp_Object Qprint_escape_newlines; | |
1513 | ||
1514 | /* Defined in lread.c */ | |
1515 | extern Lisp_Object Qvariable_documentation, Qstandard_input; | |
1516 | extern Lisp_Object Vobarray, Vstandard_input; | |
1517 | extern Lisp_Object Fread (), Fread_from_string (); | |
1518 | extern Lisp_Object Fintern (), Fintern_soft (), Fload (); | |
1519 | extern Lisp_Object Fget_file_char (), Fread_char (); | |
59b4254d | 1520 | extern Lisp_Object read_filtered_event (); |
3cfe6dfd JB |
1521 | extern Lisp_Object Feval_current_buffer (), Feval_region (); |
1522 | extern Lisp_Object intern (), oblookup (); | |
c5e3de70 RS |
1523 | #define LOADHIST_ATTACH(x) \ |
1524 | if (initialized) Vcurrent_load_list = Fcons (x, Vcurrent_load_list) | |
1525 | extern Lisp_Object Vcurrent_load_list; | |
1526 | extern Lisp_Object Vload_history; | |
3cfe6dfd JB |
1527 | |
1528 | /* Defined in eval.c */ | |
1529 | extern Lisp_Object Qautoload, Qexit, Qinteractive, Qcommandp, Qdefun, Qmacro; | |
ad236261 | 1530 | extern Lisp_Object Vinhibit_quit, Qinhibit_quit, Vquit_flag; |
3cfe6dfd JB |
1531 | extern Lisp_Object Vmocklisp_arguments, Qmocklisp, Qmocklisp_arguments; |
1532 | extern Lisp_Object Vautoload_queue; | |
973e8873 | 1533 | extern Lisp_Object Vdebug_on_error; |
846d69ac RS |
1534 | /* To run a normal hook, do |
1535 | if (!NILP (Vrun_hooks)) | |
1536 | call1 (Vrun_hooks, Qmy_funny_hook); */ | |
3cfe6dfd JB |
1537 | extern Lisp_Object Vrun_hooks; |
1538 | extern Lisp_Object Fand (), For (), Fif (), Fprogn (), Fprog1 (), Fprog2 (); | |
1539 | extern Lisp_Object Fsetq (), Fquote (); | |
1540 | extern Lisp_Object Fuser_variable_p (), Finteractive_p (); | |
1541 | extern Lisp_Object Fdefun (), Flet (), FletX (), Fwhile (); | |
1542 | extern Lisp_Object Fcatch (), Fthrow (), Funwind_protect (); | |
1543 | extern Lisp_Object Fcondition_case (), Fsignal (); | |
1544 | extern Lisp_Object Ffunction_type (), Fautoload (), Fcommandp (); | |
1545 | extern Lisp_Object Feval (), Fapply (), Ffuncall (); | |
1546 | extern Lisp_Object Fglobal_set (), Fglobal_value (), Fbacktrace (); | |
1547 | extern Lisp_Object apply1 (), call0 (), call1 (), call2 (), call3 (); | |
023c80d0 KH |
1548 | extern Lisp_Object call4 (), call5 (), call6 (); |
1549 | extern Lisp_Object Fkill_emacs (), Fkey_binding (), Fsit_for (); | |
1550 | extern Lisp_Object Fdo_auto_save (), Fset_marker (); | |
3cfe6dfd JB |
1551 | extern Lisp_Object apply_lambda (); |
1552 | extern Lisp_Object internal_catch (); | |
1553 | extern Lisp_Object internal_condition_case (); | |
a9656089 | 1554 | extern Lisp_Object internal_condition_case_1 (); |
3cfe6dfd JB |
1555 | extern Lisp_Object unbind_to (); |
1556 | extern void error (); | |
1557 | extern Lisp_Object un_autoload (); | |
1558 | ||
1559 | /* Defined in editfns.c */ | |
3cfe6dfd JB |
1560 | extern Lisp_Object Fgoto_char (); |
1561 | extern Lisp_Object Fpoint_min_marker (), Fpoint_max_marker (); | |
1562 | extern Lisp_Object Fpoint_min (), Fpoint_max (); | |
1563 | extern Lisp_Object Fpoint (), Fpoint_marker (), Fmark_marker (); | |
760cbdd3 JB |
1564 | extern Lisp_Object Ffollowing_char (), Fprevious_char (), Fchar_after (); |
1565 | extern Lisp_Object Finsert (); | |
3cfe6dfd JB |
1566 | extern Lisp_Object Feolp (), Feobp (), Fbolp (), Fbobp (); |
1567 | extern Lisp_Object Fformat (), format1 (); | |
ffd56f97 JB |
1568 | extern Lisp_Object make_buffer_string (), Fbuffer_substring (); |
1569 | extern Lisp_Object Fbuffer_string (); | |
3cfe6dfd JB |
1570 | extern Lisp_Object Fstring_equal (), Fstring_lessp (), Fbuffer_substring_lessp (); |
1571 | extern Lisp_Object save_excursion_save (), save_restriction_save (); | |
1572 | extern Lisp_Object save_excursion_restore (), save_restriction_restore (); | |
1573 | extern Lisp_Object Fchar_to_string (); | |
1574 | ||
1575 | /* defined in buffer.c */ | |
628300ba | 1576 | extern Lisp_Object Vbuffer_alist, Vinhibit_read_only; |
3cfe6dfd JB |
1577 | extern Lisp_Object Fget_buffer (), Fget_buffer_create (), Fset_buffer (); |
1578 | extern Lisp_Object Fbarf_if_buffer_read_only (); | |
1579 | extern Lisp_Object Fcurrent_buffer (), Fswitch_to_buffer (), Fpop_to_buffer (); | |
1580 | extern Lisp_Object Fother_buffer (); | |
7cdedc3f | 1581 | extern Lisp_Object Foverlay_get (); |
20280af7 | 1582 | extern Lisp_Object Qoverlayp; |
3cfe6dfd JB |
1583 | extern struct buffer *all_buffers; |
1584 | ||
1585 | /* defined in marker.c */ | |
1586 | ||
1587 | extern Lisp_Object Fmarker_position (), Fmarker_buffer (); | |
1588 | extern Lisp_Object Fcopy_marker (); | |
1589 | ||
1590 | /* Defined in fileio.c */ | |
1591 | ||
1592 | extern Lisp_Object Qfile_error; | |
997bf68d | 1593 | extern Lisp_Object Ffind_file_name_handler (); |
3cfe6dfd JB |
1594 | extern Lisp_Object Ffile_name_as_directory (); |
1595 | extern Lisp_Object Fexpand_file_name (), Ffile_name_nondirectory (); | |
1596 | extern Lisp_Object Fsubstitute_in_file_name (); | |
1597 | extern Lisp_Object Ffile_symlink_p (); | |
d20c2151 JB |
1598 | extern Lisp_Object Fverify_visited_file_modtime (); |
1599 | extern Lisp_Object Ffile_exists_p (); | |
1600 | extern Lisp_Object Fdirectory_file_name (); | |
1601 | extern Lisp_Object Ffile_name_directory (); | |
1602 | extern Lisp_Object expand_and_dir_to_file (); | |
1603 | extern Lisp_Object Ffile_accessible_directory_p (); | |
5b658538 | 1604 | extern Lisp_Object Funhandled_file_name_directory (); |
3cfe6dfd JB |
1605 | |
1606 | /* Defined in abbrev.c */ | |
1607 | ||
1608 | extern Lisp_Object Vfundamental_mode_abbrev_table; | |
1609 | ||
1610 | /* defined in search.c */ | |
1611 | extern Lisp_Object Fstring_match (); | |
1612 | extern Lisp_Object Fscan_buffer (); | |
7074fde6 | 1613 | extern void restore_match_data (); |
3cfe6dfd JB |
1614 | |
1615 | /* defined in minibuf.c */ | |
1616 | ||
1617 | extern Lisp_Object last_minibuf_string; | |
1618 | extern Lisp_Object read_minibuf (), Fcompleting_read (); | |
1619 | extern Lisp_Object Fread_from_minibuffer (); | |
1620 | extern Lisp_Object Fread_variable (), Fread_buffer (), Fread_key_sequence (); | |
1621 | extern Lisp_Object Fread_minibuffer (), Feval_minibuffer (); | |
1622 | extern Lisp_Object Fread_string (), Fread_file_name (); | |
1623 | extern Lisp_Object Fread_no_blanks_input (); | |
1624 | ||
1625 | /* Defined in callint.c */ | |
1626 | ||
e07d7a05 | 1627 | extern Lisp_Object Qminus, Qplus; |
3cfe6dfd JB |
1628 | extern Lisp_Object Vcommand_history; |
1629 | extern Lisp_Object Qcall_interactively; | |
1630 | extern Lisp_Object Fcall_interactively (); | |
1631 | extern Lisp_Object Fprefix_numeric_value (); | |
1632 | ||
1633 | /* defined in casefiddle.c */ | |
1634 | ||
1635 | extern Lisp_Object Fdowncase (), Fupcase (), Fcapitalize (); | |
1636 | ||
1637 | /* defined in keyboard.c */ | |
1638 | ||
1639 | extern Lisp_Object Qdisabled; | |
1640 | extern Lisp_Object Vhelp_form, Vtop_level; | |
1641 | extern Lisp_Object Fdiscard_input (), Frecursive_edit (); | |
1642 | extern Lisp_Object Fcommand_execute (), Finput_pending_p (); | |
f498e3b2 | 1643 | extern Lisp_Object Qvertical_scroll_bar; |
3cfe6dfd JB |
1644 | |
1645 | /* defined in keymap.c */ | |
1646 | ||
c451d7b1 | 1647 | extern Lisp_Object Qkeymap, Qmenu_bar; |
3cfe6dfd JB |
1648 | extern Lisp_Object current_global_map; |
1649 | extern Lisp_Object Fkey_description (), Fsingle_key_description (); | |
1650 | extern Lisp_Object Fwhere_is_internal (); | |
1651 | extern Lisp_Object access_keymap (), store_in_keymap (); | |
1652 | extern Lisp_Object get_keyelt (), get_keymap(); | |
1653 | ||
1654 | /* defined in indent.c */ | |
1655 | extern Lisp_Object Fvertical_motion (), Findent_to (), Fcurrent_column (); | |
1656 | ||
1657 | /* defined in window.c */ | |
afd0d237 | 1658 | extern Lisp_Object Qwindowp, Qwindow_live_p; |
3cfe6dfd JB |
1659 | extern Lisp_Object Fget_buffer_window (); |
1660 | extern Lisp_Object Fsave_window_excursion (); | |
1661 | extern Lisp_Object Fset_window_configuration (), Fcurrent_window_configuration (); | |
9453ea7b JB |
1662 | extern Lisp_Object Fcoordinates_in_window_p (); |
1663 | extern Lisp_Object Fwindow_at (); | |
02213e82 | 1664 | extern int window_internal_height (), window_internal_width (); |
3cfe6dfd | 1665 | |
ff11dfa1 | 1666 | /* defined in frame.c */ |
362fb47a | 1667 | extern Lisp_Object Qvisible; |
ff11dfa1 JB |
1668 | extern Lisp_Object Fframep (); |
1669 | extern Lisp_Object Fselect_frame (); | |
1670 | extern Lisp_Object Ffocus_frame (); | |
1671 | extern Lisp_Object Funfocus_frame (); | |
1672 | extern Lisp_Object Fselected_frame (); | |
1673 | extern Lisp_Object Fwindow_frame (); | |
1674 | extern Lisp_Object Fframe_root_window (); | |
1675 | extern Lisp_Object Fframe_selected_window (); | |
1676 | extern Lisp_Object Fframe_list (); | |
1677 | extern Lisp_Object Fnext_frame (); | |
1678 | extern Lisp_Object Fdelete_frame (); | |
3cfe6dfd JB |
1679 | extern Lisp_Object Fread_mouse_position (); |
1680 | extern Lisp_Object Fset_mouse_position (); | |
ff11dfa1 JB |
1681 | extern Lisp_Object Fmake_frame_visible (); |
1682 | extern Lisp_Object Fmake_frame_invisible (); | |
1683 | extern Lisp_Object Ficonify_frame (); | |
1684 | extern Lisp_Object Fdeiconify_frame (); | |
1685 | extern Lisp_Object Fframe_visible_p (); | |
1686 | extern Lisp_Object Fvisible_frame_list (); | |
1687 | extern Lisp_Object Fframe_parameters (); | |
1688 | extern Lisp_Object Fmodify_frame_parameters (); | |
1689 | extern Lisp_Object Fframe_pixel_size (); | |
1690 | extern Lisp_Object Fframe_height (); | |
1691 | extern Lisp_Object Fframe_width (); | |
1692 | extern Lisp_Object Fset_frame_height (); | |
1693 | extern Lisp_Object Fset_frame_width (); | |
1694 | extern Lisp_Object Fset_frame_size (); | |
1695 | extern Lisp_Object Fset_frame_position (); | |
3cfe6dfd JB |
1696 | #ifndef HAVE_X11 |
1697 | extern Lisp_Object Frubber_band_rectangle (); | |
1698 | #endif /* HAVE_X11 */ | |
1699 | ||
1700 | /* defined in emacs.c */ | |
1701 | extern Lisp_Object decode_env_path (); | |
3530d534 | 1702 | extern Lisp_Object Vinvocation_name, Vinvocation_directory; |
e6faba7f | 1703 | extern Lisp_Object Vinstallation_directory; |
d0068e25 | 1704 | void shut_down_emacs ( /* int signal, int no_x, Lisp_Object stuff */ ); |
3cfe6dfd JB |
1705 | /* Nonzero means don't do interactive redisplay and don't change tty modes */ |
1706 | extern int noninteractive; | |
1707 | /* Nonzero means don't do use window-system-specific display code */ | |
1708 | extern int inhibit_window_system; | |
99a3d506 | 1709 | /* Nonzero means that a filter or a sentinel is running. */ |
7074fde6 | 1710 | extern int running_asynch_code; |
3cfe6dfd JB |
1711 | |
1712 | /* defined in process.c */ | |
1713 | extern Lisp_Object Fget_process (), Fget_buffer_process (), Fprocessp (); | |
1714 | extern Lisp_Object Fprocess_status (), Fkill_process (); | |
7cdedc3f | 1715 | extern Lisp_Object Fprocess_send_eof (); |
3cfe6dfd JB |
1716 | |
1717 | /* defined in callproc.c */ | |
9453ea7b | 1718 | extern Lisp_Object Vexec_path, Vexec_directory, Vdata_directory; |
c65be0e1 | 1719 | extern Lisp_Object Vdoc_directory; |
3cfe6dfd | 1720 | |
3cfe6dfd JB |
1721 | /* defined in doc.c */ |
1722 | extern Lisp_Object Vdoc_file_name; | |
1723 | extern Lisp_Object Fsubstitute_command_keys (); | |
1724 | extern Lisp_Object Fdocumentation (), Fdocumentation_property (); | |
1725 | ||
1726 | /* defined in bytecode.c */ | |
1727 | extern Lisp_Object Qbytecode; | |
d20c2151 | 1728 | extern Lisp_Object Fbyte_code (); |
3cfe6dfd JB |
1729 | |
1730 | /* defined in macros.c */ | |
1731 | extern Lisp_Object Qexecute_kbd_macro; | |
1732 | extern Lisp_Object Fexecute_kbd_macro (); | |
1733 | ||
d20c2151 JB |
1734 | /* defined in undo.c */ |
1735 | extern Lisp_Object Fundo_boundary (); | |
1736 | extern Lisp_Object truncate_undo_list (); | |
1737 | ||
8537f1cb | 1738 | /* defined in textprop.c */ |
c2d8811c | 1739 | extern Lisp_Object Qmodification_hooks; |
2a96daeb | 1740 | extern Lisp_Object Qrear_nonsticky; |
c2d8811c | 1741 | extern Lisp_Object Qinsert_in_front_hooks, Qinsert_behind_hooks; |
55253957 RS |
1742 | extern Lisp_Object Fnext_property_change (); |
1743 | extern Lisp_Object Fnext_single_property_change (); | |
8537f1cb | 1744 | |
3cfe6dfd JB |
1745 | /* Nonzero means Emacs has already been initialized. |
1746 | Used during startup to detect startup of dumped Emacs. */ | |
1747 | extern int initialized; | |
1748 | ||
1749 | extern int immediate_quit; /* Nonzero means ^G can quit instantly */ | |
1750 | ||
1751 | extern void debugger (); | |
1752 | ||
339747e4 | 1753 | extern char *getenv (), *ctime (), *getwd (); |
3cfe6dfd | 1754 | extern long *xmalloc (), *xrealloc (); |
9ac0d9e0 | 1755 | extern void xfree (); |
3cfe6dfd | 1756 | |
efb859b4 | 1757 | extern char *egetenv (); |
c5e3de70 | 1758 | |
5d6be39f KH |
1759 | /* Set up the name of the machine we're running on. */ |
1760 | extern void init_system_name (); | |
881a5a80 RS |
1761 | |
1762 | /* Some systems (e.g., NT) use a different path separator than Unix, | |
1763 | in addition to a device separator. Default the path separator | |
1764 | to '/', and don't test for a device separator in IS_ANY_SEP. */ | |
1765 | ||
1766 | #ifndef DIRECTORY_SEP | |
1767 | #define DIRECTORY_SEP '/' | |
1768 | #endif | |
881a5a80 RS |
1769 | #ifndef IS_DIRECTORY_SEP |
1770 | #define IS_DIRECTORY_SEP(_c_) ((_c_) == DIRECTORY_SEP) | |
1771 | #endif | |
1772 | #ifndef IS_DEVICE_SEP | |
1773 | #ifndef DEVICE_SEP | |
1774 | #define IS_DEVICE_SEP(_c_) 0 | |
1775 | #else | |
1776 | #define IS_DEVICE_SEP(_c_) ((_c_) == DEVICE_SEP) | |
1777 | #endif | |
1778 | #endif | |
1779 | #ifndef IS_ANY_SEP | |
1780 | #define IS_ANY_SEP(_c_) (IS_DIRECTORY_SEP (_c_)) | |
1781 | #endif | |
51bd4610 KH |
1782 | |
1783 | #ifdef SWITCH_ENUM_BUG | |
1784 | #define SWITCH_ENUM_CAST(x) ((int)(x)) | |
1785 | #else | |
1786 | #define SWITCH_ENUM_CAST(x) (x) | |
1787 | #endif |