1 /* Fundamental definitions for GNU Emacs Lisp interpreter.
2 Copyright (C) 1985-1987, 1993-1995, 1997-2012
3 Free Software Foundation, Inc.
5 This file is part of GNU Emacs.
7 GNU Emacs is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation, either version 3 of the License, or
10 (at your option) any later version.
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
30 /* Use the configure flag --enable-checking[=LIST] to enable various
31 types of run time checks for Lisp objects. */
33 #ifdef GC_CHECK_CONS_LIST
34 extern void check_cons_list (void);
35 #define CHECK_CONS_LIST() check_cons_list ()
37 #define CHECK_CONS_LIST() ((void) 0)
40 /* Temporarily disable wider-than-pointer integers until they're tested more.
41 Build with CFLAGS='-DWIDE_EMACS_INT' to try them out. */
42 /* #undef WIDE_EMACS_INT */
44 /* EMACS_INT - signed integer wide enough to hold an Emacs value
45 EMACS_INT_MAX - maximum value of EMACS_INT; can be used in #if
46 pI - printf length modifier for EMACS_INT
47 EMACS_UINT - unsigned variant of EMACS_INT */
49 # if LONG_MAX < LLONG_MAX && defined WIDE_EMACS_INT
50 # define EMACS_INT long long
51 # define EMACS_INT_MAX LLONG_MAX
53 # elif INT_MAX < LONG_MAX
54 # define EMACS_INT long
55 # define EMACS_INT_MAX LONG_MAX
58 # define EMACS_INT int
59 # define EMACS_INT_MAX INT_MAX
63 #define EMACS_UINT unsigned EMACS_INT
65 /* Number of bits in some machine integer types. */
68 BITS_PER_CHAR
= CHAR_BIT
,
69 BITS_PER_SHORT
= CHAR_BIT
* sizeof (short),
70 BITS_PER_INT
= CHAR_BIT
* sizeof (int),
71 BITS_PER_LONG
= CHAR_BIT
* sizeof (long int),
72 BITS_PER_EMACS_INT
= CHAR_BIT
* sizeof (EMACS_INT
)
75 /* printmax_t and uprintmax_t are types for printing large integers.
76 These are the widest integers that are supported for printing.
77 pMd etc. are conversions for printing them.
78 On C99 hosts, there's no problem, as even the widest integers work.
79 Fall back on EMACS_INT on pre-C99 hosts. */
81 typedef intmax_t printmax_t
;
82 typedef uintmax_t uprintmax_t
;
86 typedef EMACS_INT printmax_t
;
87 typedef EMACS_UINT uprintmax_t
;
92 /* Use pD to format ptrdiff_t values, which suffice for indexes into
93 buffers and strings. Emacs never allocates objects larger than
94 PTRDIFF_MAX bytes, as they cause problems with pointer subtraction.
95 In C99, pD can always be "t"; configure it here for the sake of
96 pre-C99 libraries such as glibc 2.0 and Solaris 8. */
97 #if PTRDIFF_MAX == INT_MAX
99 #elif PTRDIFF_MAX == LONG_MAX
101 #elif PTRDIFF_MAX == LLONG_MAX
107 /* Extra internal type checking? */
109 #ifdef ENABLE_CHECKING
111 extern void die (const char *, const char *, int) NO_RETURN
;
113 /* The suppress_checking variable is initialized to 0 in alloc.c. Set
114 it to 1 using a debugger to temporarily disable aborting on
115 detected internal inconsistencies or error conditions.
117 Testing suppress_checking after the supplied condition ensures that
118 the side effects produced by CHECK will be consistent, independent
119 of whether ENABLE_CHECKING is defined, or whether the checks are
120 suppressed at run time.
122 In some cases, a good compiler may be able to optimize away the
123 CHECK macro altogether, e.g., if XSTRING (x) uses CHECK to test
124 STRINGP (x), but a particular use of XSTRING is invoked only after
125 testing that STRINGP (x) is true, making the test redundant. */
127 extern int suppress_checking EXTERNALLY_VISIBLE
;
129 #define CHECK(check,msg) (((check) || suppress_checking \
131 : die ((msg), __FILE__, __LINE__)), \
135 /* Produce same side effects and result, but don't complain. */
136 #define CHECK(check,msg) ((check),0)
140 /* Define an Emacs version of "assert", since some system ones are
142 #ifndef ENABLE_CHECKING
143 #define eassert(X) ((void) (0 && (X))) /* Check that X compiles. */
144 #else /* ENABLE_CHECKING */
145 #if defined (__GNUC__) && __GNUC__ >= 2 && defined (__STDC__)
146 #define eassert(cond) CHECK (cond, "assertion failed: " #cond)
148 #define eassert(cond) CHECK (cond, "assertion failed")
150 #endif /* ENABLE_CHECKING */
152 /* Use the configure flag --enable-use-lisp-union-type to make
153 Lisp_Object use a union type instead of the default int. The flag
154 causes USE_LISP_UNION_TYPE to be defined. */
156 /***** Select the tagging scheme. *****/
157 /* There are basically two options that control the tagging scheme:
158 - USE_LISP_UNION_TYPE says that Lisp_Object should be a union instead
160 - USE_LSB_TAG means that we can assume the least 3 bits of pointers are
161 always 0, and we can thus use them to hold tag bits, without
162 restricting our addressing space.
164 If USE_LSB_TAG is not set, then we use the top 3 bits for tagging, thus
165 restricting our possible address range. Currently USE_LSB_TAG is not
166 allowed together with a union. This is not due to any fundamental
167 technical (or political ;-) problem: nobody wrote the code to do it yet.
169 USE_LSB_TAG not only requires the least 3 bits of pointers returned by
170 malloc to be 0 but also needs to be able to impose a mult-of-8 alignment
171 on the few static Lisp_Objects used: all the defsubr as well
172 as the two special buffers buffer_defaults and buffer_local_symbols. */
174 /* First, try and define DECL_ALIGN(type,var) which declares a static
175 variable VAR of type TYPE with the added requirement that it be
179 #define VALBITS (BITS_PER_EMACS_INT - GCTYPEBITS)
181 /* The maximum value that can be stored in a EMACS_INT, assuming all
182 bits other than the type bits contribute to a nonnegative signed value.
183 This can be used in #if, e.g., '#if VAL_MAX < UINTPTR_MAX' below. */
184 #define VAL_MAX (EMACS_INT_MAX >> (GCTYPEBITS - 1))
186 #ifndef NO_DECL_ALIGN
188 # if HAVE_ATTRIBUTE_ALIGNED
189 # define DECL_ALIGN(type, var) \
190 type __attribute__ ((__aligned__ (1 << GCTYPEBITS))) var
191 # elif defined(_MSC_VER)
192 # define ALIGN_GCTYPEBITS 8
193 # if (1 << GCTYPEBITS) != ALIGN_GCTYPEBITS
194 # error ALIGN_GCTYPEBITS is wrong!
196 # define DECL_ALIGN(type, var) \
197 type __declspec(align(ALIGN_GCTYPEBITS)) var
199 /* What directives do other compilers use? */
204 /* Let's USE_LSB_TAG on systems where we know malloc returns mult-of-8. */
205 #if (defined GNU_MALLOC || defined DOUG_LEA_MALLOC || defined __GLIBC__ \
206 || defined DARWIN_OS || defined __sun)
207 /* We also need to be able to specify mult-of-8 alignment on static vars. */
208 # if defined DECL_ALIGN
209 /* On hosts where pointers-as-ints do not exceed VAL_MAX,
211 a. unnecessary, because the top bits of an EMACS_INT are unused, and
212 b. slower, because it typically requires extra masking.
213 So, define USE_LSB_TAG only on hosts where it might be useful. */
214 # if VAL_MAX < UINTPTR_MAX
220 /* If we cannot use 8-byte alignment, make DECL_ALIGN a no-op. */
223 # error "USE_LSB_TAG used without defining DECL_ALIGN"
225 # define DECL_ALIGN(type, var) type var
229 /* Define the fundamental Lisp data structures. */
231 /* If USE_2_TAGBITS_FOR_INTS is defined, then Lisp integers use
232 2 tags, to give them one extra bit, thus extending their range from
233 e.g -2^28..2^28-1 to -2^29..2^29-1. */
234 #define USE_2_TAGS_FOR_INTS
236 /* Making it work for the union case is too much trouble. */
237 #ifdef USE_LISP_UNION_TYPE
238 # undef USE_2_TAGS_FOR_INTS
241 /* This is the set of Lisp data types. */
243 #if !defined USE_2_TAGS_FOR_INTS
244 # define LISP_INT_TAG Lisp_Int
245 # define case_Lisp_Int case Lisp_Int
246 # define LISP_STRING_TAG 4
247 # define LISP_INT_TAG_P(x) ((x) == Lisp_Int)
249 # define LISP_INT_TAG Lisp_Int0
250 # define case_Lisp_Int case Lisp_Int0: case Lisp_Int1
252 # define LISP_INT1_TAG 4
253 # define LISP_STRING_TAG 1
254 # define LISP_INT_TAG_P(x) (((x) & 3) == 0)
256 # define LISP_INT1_TAG 1
257 # define LISP_STRING_TAG 4
258 # define LISP_INT_TAG_P(x) (((x) & 6) == 0)
262 /* Stolen from GDB. The only known compiler that doesn't support
263 enums in bitfields is MSVC. */
265 #define ENUM_BF(TYPE) unsigned int
267 #define ENUM_BF(TYPE) enum TYPE
273 /* Integer. XINT (obj) is the integer value. */
274 #ifdef USE_2_TAGS_FOR_INTS
276 Lisp_Int1
= LISP_INT1_TAG
,
281 /* Symbol. XSYMBOL (object) points to a struct Lisp_Symbol. */
284 /* Miscellaneous. XMISC (object) points to a union Lisp_Misc,
285 whose first member indicates the subtype. */
288 /* String. XSTRING (object) points to a struct Lisp_String.
289 The length of the string, and its contents, are stored therein. */
290 Lisp_String
= LISP_STRING_TAG
,
292 /* Vector of Lisp objects, or something resembling it.
293 XVECTOR (object) points to a struct Lisp_Vector, which contains
294 the size and contents. The size field also contains the type
295 information, if it's not a real vector object. */
298 /* Cons. XCONS (object) points to a struct Lisp_Cons. */
304 /* This is the set of data types that share a common structure.
305 The first member of the structure is a type code from this set.
306 The enum values are arbitrary, but we'll use large numbers to make it
307 more likely that we'll spot the error if a random word in memory is
308 mistakenly interpreted as a Lisp_Misc. */
311 Lisp_Misc_Free
= 0x5eab,
314 Lisp_Misc_Save_Value
,
315 /* Currently floats are not a misc type,
316 but let's define this in case we want to change that. */
318 /* This is not a type code. It is for range checking. */
322 /* These are the types of forwarding objects used in the value slot
323 of symbols for special built-in variables whose value is stored in
327 Lisp_Fwd_Int
, /* Fwd to a C `int' variable. */
328 Lisp_Fwd_Bool
, /* Fwd to a C boolean var. */
329 Lisp_Fwd_Obj
, /* Fwd to a C Lisp_Object variable. */
330 Lisp_Fwd_Buffer_Obj
, /* Fwd to a Lisp_Object field of buffers. */
331 Lisp_Fwd_Kboard_Obj
, /* Fwd to a Lisp_Object field of kboards. */
334 #ifdef USE_LISP_UNION_TYPE
336 #ifndef WORDS_BIGENDIAN
338 /* Definition of Lisp_Object for little-endian machines. */
343 /* Used for comparing two Lisp_Objects;
344 also, positive integers can be accessed fast this way. */
349 /* Use explicit signed, the signedness of a bit-field of type
350 int is implementation defined. */
351 signed EMACS_INT val
: VALBITS
;
352 ENUM_BF (Lisp_Type
) type
: GCTYPEBITS
;
356 EMACS_UINT val
: VALBITS
;
357 ENUM_BF (Lisp_Type
) type
: GCTYPEBITS
;
362 #else /* If WORDS_BIGENDIAN */
367 /* Used for comparing two Lisp_Objects;
368 also, positive integers can be accessed fast this way. */
373 ENUM_BF (Lisp_Type
) type
: GCTYPEBITS
;
374 /* Use explicit signed, the signedness of a bit-field of type
375 int is implementation defined. */
376 signed EMACS_INT val
: VALBITS
;
380 ENUM_BF (Lisp_Type
) type
: GCTYPEBITS
;
381 EMACS_UINT val
: VALBITS
;
386 #endif /* WORDS_BIGENDIAN */
389 static inline Lisp_Object
390 LISP_MAKE_RVALUE (Lisp_Object o
)
395 /* This is more portable to pre-C99 non-GCC compilers, but for
396 backwards compatibility GCC still accepts an old GNU extension
397 which caused this to only generate a warning. */
398 #define LISP_MAKE_RVALUE(o) (0 ? (o) : (o))
401 #else /* USE_LISP_UNION_TYPE */
403 /* If union type is not wanted, define Lisp_Object as just a number. */
405 typedef EMACS_INT Lisp_Object
;
406 #define LISP_MAKE_RVALUE(o) (0+(o))
407 #endif /* USE_LISP_UNION_TYPE */
409 /* In the size word of a vector, this bit means the vector has been marked. */
411 #define ARRAY_MARK_FLAG PTRDIFF_MIN
413 /* In the size word of a struct Lisp_Vector, this bit means it's really
414 some other vector-like object. */
415 #define PSEUDOVECTOR_FLAG (PTRDIFF_MAX - PTRDIFF_MAX / 2)
417 /* In a pseudovector, the size field actually contains a word with one
418 PSEUDOVECTOR_FLAG bit set, and exactly one of the following bits to
419 indicate the actual type.
420 We use a bitset, even tho only one of the bits can be set at any
421 particular time just so as to be able to use micro-optimizations such as
422 testing membership of a particular subset of pseudovectors in Fequal.
423 It is not crucial, but there are plenty of bits here, so why not do it? */
426 PVEC_NORMAL_VECTOR
= 0,
427 PVEC_PROCESS
= 0x200,
429 PVEC_COMPILED
= 0x800,
430 PVEC_WINDOW
= 0x1000,
431 PVEC_WINDOW_CONFIGURATION
= 0x2000,
433 PVEC_CHAR_TABLE
= 0x8000,
434 PVEC_BOOL_VECTOR
= 0x10000,
435 PVEC_BUFFER
= 0x20000,
436 PVEC_HASH_TABLE
= 0x40000,
437 PVEC_TERMINAL
= 0x80000,
438 PVEC_SUB_CHAR_TABLE
= 0x100000,
439 PVEC_FONT
= 0x200000,
440 PVEC_OTHER
= 0x400000,
441 PVEC_TYPE_MASK
= 0x7ffe00
443 #if 0 /* This is used to make the value of PSEUDOVECTOR_FLAG available to
444 GDB. It doesn't work on OS Alpha. Moved to a variable in
446 PVEC_FLAG
= PSEUDOVECTOR_FLAG
450 /* For convenience, we also store the number of elements in these bits.
451 Note that this size is not necessarily the memory-footprint size, but
452 only the number of Lisp_Object fields (that need to be traced by the GC).
453 The distinction is used e.g. by Lisp_Process which places extra
454 non-Lisp_Object fields at the end of the structure. */
455 #define PSEUDOVECTOR_SIZE_MASK 0x1ff
457 /* Number of bits to put in each character in the internal representation
458 of bool vectors. This should not vary across implementations. */
459 #define BOOL_VECTOR_BITS_PER_CHAR 8
461 /* These macros extract various sorts of values from a Lisp_Object.
462 For example, if tem is a Lisp_Object whose type is Lisp_Cons,
463 XCONS (tem) is the struct Lisp_Cons * pointing to the memory for that cons. */
465 #ifndef USE_LISP_UNION_TYPE
467 /* Return a perfect hash of the Lisp_Object representation. */
472 #define TYPEMASK ((((EMACS_INT) 1) << GCTYPEBITS) - 1)
473 #define XTYPE(a) ((enum Lisp_Type) ((a) & TYPEMASK))
474 #ifdef USE_2_TAGS_FOR_INTS
475 # define XINT(a) (((EMACS_INT) (a)) >> (GCTYPEBITS - 1))
476 # define XUINT(a) (((EMACS_UINT) (a)) >> (GCTYPEBITS - 1))
477 # define make_number(N) (((EMACS_INT) (N)) << (GCTYPEBITS - 1))
479 # define XINT(a) (((EMACS_INT) (a)) >> GCTYPEBITS)
480 # define XUINT(a) (((EMACS_UINT) (a)) >> GCTYPEBITS)
481 # define make_number(N) (((EMACS_INT) (N)) << GCTYPEBITS)
483 #define XSET(var, type, ptr) \
484 (eassert (XTYPE ((intptr_t) (ptr)) == 0), /* Check alignment. */ \
485 (var) = (type) | (intptr_t) (ptr))
487 #define XPNTR(a) ((intptr_t) ((a) & ~TYPEMASK))
488 #define XUNTAG(a, type) ((intptr_t) ((a) - (type)))
490 #else /* not USE_LSB_TAG */
492 #define VALMASK VAL_MAX
494 /* One need to override this if there must be high bits set in data space
495 (doing the result of the below & ((1 << (GCTYPE + 1)) - 1) would work
496 on all machines, but would penalize machines which don't need it)
498 #define XTYPE(a) ((enum Lisp_Type) (((EMACS_UINT) (a)) >> VALBITS))
500 /* For integers known to be positive, XFASTINT provides fast retrieval
501 and XSETFASTINT provides fast storage. This takes advantage of the
502 fact that Lisp_Int is 0. */
503 #define XFASTINT(a) ((a) + 0)
504 #define XSETFASTINT(a, b) ((a) = (b))
506 /* Extract the value of a Lisp_Object as a (un)signed integer. */
508 #ifdef USE_2_TAGS_FOR_INTS
509 # define XINT(a) ((((EMACS_INT) (a)) << (GCTYPEBITS - 1)) >> (GCTYPEBITS - 1))
510 # define XUINT(a) ((EMACS_UINT) ((a) & (1 + (VALMASK << 1))))
511 # define make_number(N) ((((EMACS_INT) (N)) & (1 + (VALMASK << 1))))
513 # define XINT(a) ((((EMACS_INT) (a)) << (BITS_PER_EMACS_INT - VALBITS)) \
514 >> (BITS_PER_EMACS_INT - VALBITS))
515 # define XUINT(a) ((EMACS_UINT) ((a) & VALMASK))
516 # define make_number(N) \
517 ((((EMACS_INT) (N)) & VALMASK) | ((EMACS_INT) Lisp_Int) << VALBITS)
520 #define XSET(var, type, ptr) \
521 ((var) = ((EMACS_INT) ((EMACS_UINT) (type) << VALBITS) \
522 + ((intptr_t) (ptr) & VALMASK)))
525 /* DATA_SEG_BITS forces extra bits to be or'd in with any pointers
526 which were stored in a Lisp_Object */
527 #define XPNTR(a) ((uintptr_t) (((a) & VALMASK)) | DATA_SEG_BITS))
529 #define XPNTR(a) ((uintptr_t) ((a) & VALMASK))
532 #endif /* not USE_LSB_TAG */
534 #else /* USE_LISP_UNION_TYPE */
536 #ifdef USE_2_TAGS_FOR_INTS
537 # error "USE_2_TAGS_FOR_INTS is not supported with USE_LISP_UNION_TYPE"
540 #define XHASH(a) ((a).i)
541 #define XTYPE(a) ((enum Lisp_Type) (a).u.type)
542 #define XINT(a) ((EMACS_INT) (a).s.val)
543 #define XUINT(a) ((EMACS_UINT) (a).u.val)
547 # define XSET(var, vartype, ptr) \
548 (eassert ((((uintptr_t) (ptr)) & ((1 << GCTYPEBITS) - 1)) == 0), \
549 (var).u.val = ((uintptr_t) (ptr)) >> GCTYPEBITS, \
550 (var).u.type = ((char) (vartype)))
552 /* Some versions of gcc seem to consider the bitfield width when issuing
553 the "cast to pointer from integer of different size" warning, so the
554 cast is here to widen the value back to its natural size. */
555 # define XPNTR(v) ((intptr_t) (v).s.val << GCTYPEBITS)
557 #else /* !USE_LSB_TAG */
559 /* For integers known to be positive, XFASTINT provides fast retrieval
560 and XSETFASTINT provides fast storage. This takes advantage of the
561 fact that Lisp_Int is 0. */
562 # define XFASTINT(a) ((a).i + 0)
563 # define XSETFASTINT(a, b) ((a).i = (b))
565 # define XSET(var, vartype, ptr) \
566 (((var).s.val = ((intptr_t) (ptr))), ((var).s.type = ((char) (vartype))))
569 /* DATA_SEG_BITS forces extra bits to be or'd in with any pointers
570 which were stored in a Lisp_Object */
571 #define XPNTR(a) ((intptr_t) (XUINT (a) | DATA_SEG_BITS))
573 #define XPNTR(a) ((intptr_t) XUINT (a))
576 #endif /* !USE_LSB_TAG */
578 #if __GNUC__ >= 2 && defined (__OPTIMIZE__)
579 #define make_number(N) \
580 (__extension__ ({ Lisp_Object _l; _l.s.val = (N); _l.s.type = Lisp_Int; _l; }))
582 extern Lisp_Object
make_number (EMACS_INT
);
585 #endif /* USE_LISP_UNION_TYPE */
587 /* For integers known to be positive, XFASTINT sometimes provides
588 faster retrieval and XSETFASTINT provides faster storage.
589 If not, fallback on the non-accelerated path. */
591 # define XFASTINT(a) (XINT (a))
592 # define XSETFASTINT(a, b) (XSETINT (a, b))
595 /* Extract the pointer value of the Lisp object A, under the
596 assumption that A's type is TYPE. This is a fallback
597 implementation if nothing faster is available. */
599 # define XUNTAG(a, type) XPNTR (a)
602 #define EQ(x, y) (XHASH (x) == XHASH (y))
604 /* Number of bits in a fixnum, including the sign bit. */
605 #ifdef USE_2_TAGS_FOR_INTS
606 # define FIXNUM_BITS (VALBITS + 1)
608 # define FIXNUM_BITS VALBITS
611 /* Mask indicating the significant bits of a fixnum. */
612 #define INTMASK (((EMACS_INT) 1 << FIXNUM_BITS) - 1)
614 /* Largest and smallest representable fixnum values. These are the C
616 #define MOST_POSITIVE_FIXNUM (INTMASK / 2)
617 #define MOST_NEGATIVE_FIXNUM (-1 - MOST_POSITIVE_FIXNUM)
619 /* Value is non-zero if I doesn't fit into a Lisp fixnum. It is
620 written this way so that it also works if I is of unsigned
621 type or if I is a NaN. */
623 #define FIXNUM_OVERFLOW_P(i) \
624 (! ((0 <= (i) || MOST_NEGATIVE_FIXNUM <= (i)) && (i) <= MOST_POSITIVE_FIXNUM))
626 static inline ptrdiff_t
627 clip_to_bounds (ptrdiff_t lower
, EMACS_INT num
, ptrdiff_t upper
)
629 return num
< lower
? lower
: num
<= upper
? num
: upper
;
632 /* Extract a value or address from a Lisp_Object. */
634 #define XCONS(a) (eassert (CONSP (a)), \
635 (struct Lisp_Cons *) XUNTAG (a, Lisp_Cons))
636 #define XVECTOR(a) (eassert (VECTORLIKEP (a)), \
637 (struct Lisp_Vector *) XUNTAG (a, Lisp_Vectorlike))
638 #define XSTRING(a) (eassert (STRINGP (a)), \
639 (struct Lisp_String *) XUNTAG (a, Lisp_String))
640 #define XSYMBOL(a) (eassert (SYMBOLP (a)), \
641 (struct Lisp_Symbol *) XUNTAG (a, Lisp_Symbol))
642 #define XFLOAT(a) (eassert (FLOATP (a)), \
643 (struct Lisp_Float *) XUNTAG (a, Lisp_Float))
647 #define XMISC(a) ((union Lisp_Misc *) XUNTAG (a, Lisp_Misc))
648 #define XMISCANY(a) (eassert (MISCP (a)), &(XMISC (a)->u_any))
649 #define XMISCTYPE(a) (XMISCANY (a)->type)
650 #define XMARKER(a) (eassert (MARKERP (a)), &(XMISC (a)->u_marker))
651 #define XOVERLAY(a) (eassert (OVERLAYP (a)), &(XMISC (a)->u_overlay))
652 #define XSAVE_VALUE(a) (eassert (SAVE_VALUEP (a)), &(XMISC (a)->u_save_value))
654 /* Forwarding object types. */
656 #define XFWDTYPE(a) (a->u_intfwd.type)
657 #define XINTFWD(a) (eassert (INTFWDP (a)), &((a)->u_intfwd))
658 #define XBOOLFWD(a) (eassert (BOOLFWDP (a)), &((a)->u_boolfwd))
659 #define XOBJFWD(a) (eassert (OBJFWDP (a)), &((a)->u_objfwd))
660 #define XBUFFER_OBJFWD(a) \
661 (eassert (BUFFER_OBJFWDP (a)), &((a)->u_buffer_objfwd))
662 #define XKBOARD_OBJFWD(a) \
663 (eassert (KBOARD_OBJFWDP (a)), &((a)->u_kboard_objfwd))
665 /* Pseudovector types. */
667 #define XPROCESS(a) (eassert (PROCESSP (a)), \
668 (struct Lisp_Process *) XUNTAG (a, Lisp_Vectorlike))
669 #define XWINDOW(a) (eassert (WINDOWP (a)), \
670 (struct window *) XUNTAG (a, Lisp_Vectorlike))
671 #define XTERMINAL(a) (eassert (TERMINALP (a)), \
672 (struct terminal *) XUNTAG (a, Lisp_Vectorlike))
673 #define XSUBR(a) (eassert (SUBRP (a)), \
674 (struct Lisp_Subr *) XUNTAG (a, Lisp_Vectorlike))
675 #define XBUFFER(a) (eassert (BUFFERP (a)), \
676 (struct buffer *) XUNTAG (a, Lisp_Vectorlike))
677 #define XCHAR_TABLE(a) (eassert (CHAR_TABLE_P (a)), \
678 (struct Lisp_Char_Table *) XUNTAG (a, Lisp_Vectorlike))
679 #define XSUB_CHAR_TABLE(a) (eassert (SUB_CHAR_TABLE_P (a)), \
680 ((struct Lisp_Sub_Char_Table *) \
681 XUNTAG (a, Lisp_Vectorlike)))
682 #define XBOOL_VECTOR(a) (eassert (BOOL_VECTOR_P (a)), \
683 ((struct Lisp_Bool_Vector *) \
684 XUNTAG (a, Lisp_Vectorlike)))
686 /* Construct a Lisp_Object from a value or address. */
688 #define XSETINT(a, b) (a) = make_number (b)
689 #define XSETCONS(a, b) XSET (a, Lisp_Cons, b)
690 #define XSETVECTOR(a, b) XSET (a, Lisp_Vectorlike, b)
691 #define XSETSTRING(a, b) XSET (a, Lisp_String, b)
692 #define XSETSYMBOL(a, b) XSET (a, Lisp_Symbol, b)
693 #define XSETFLOAT(a, b) XSET (a, Lisp_Float, b)
697 #define XSETMISC(a, b) XSET (a, Lisp_Misc, b)
698 #define XSETMARKER(a, b) (XSETMISC (a, b), XMISCTYPE (a) = Lisp_Misc_Marker)
700 /* Pseudovector types. */
702 #define XSETPVECTYPE(v, code) XSETTYPED_PVECTYPE (v, header.size, code)
703 #define XSETTYPED_PVECTYPE(v, size_member, code) \
704 ((v)->size_member |= PSEUDOVECTOR_FLAG | (code))
705 #define XSETPVECTYPESIZE(v, code, sizeval) \
706 ((v)->header.size = PSEUDOVECTOR_FLAG | (code) | (sizeval))
708 /* The cast to struct vectorlike_header * avoids aliasing issues. */
709 #define XSETPSEUDOVECTOR(a, b, code) \
710 XSETTYPED_PSEUDOVECTOR(a, b, \
711 (((struct vectorlike_header *) \
712 XUNTAG (a, Lisp_Vectorlike)) \
715 #define XSETTYPED_PSEUDOVECTOR(a, b, size, code) \
716 (XSETVECTOR (a, b), \
717 eassert ((size & (PSEUDOVECTOR_FLAG | PVEC_TYPE_MASK)) \
718 == (PSEUDOVECTOR_FLAG | (code))))
720 #define XSETWINDOW_CONFIGURATION(a, b) \
721 (XSETPSEUDOVECTOR (a, b, PVEC_WINDOW_CONFIGURATION))
722 #define XSETPROCESS(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_PROCESS))
723 #define XSETWINDOW(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_WINDOW))
724 #define XSETTERMINAL(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_TERMINAL))
725 /* XSETSUBR is special since Lisp_Subr lacks struct vectorlike_header. */
726 #define XSETSUBR(a, b) \
727 XSETTYPED_PSEUDOVECTOR (a, b, XSUBR (a)->size, PVEC_SUBR)
728 #define XSETCOMPILED(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_COMPILED))
729 #define XSETBUFFER(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_BUFFER))
730 #define XSETCHAR_TABLE(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_CHAR_TABLE))
731 #define XSETBOOL_VECTOR(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_BOOL_VECTOR))
732 #define XSETSUB_CHAR_TABLE(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_SUB_CHAR_TABLE))
734 /* Convenience macros for dealing with Lisp arrays. */
736 #define AREF(ARRAY, IDX) XVECTOR ((ARRAY))->contents[IDX]
737 #define ASIZE(ARRAY) XVECTOR ((ARRAY))->header.size
738 /* The IDX==IDX tries to detect when the macro argument is side-effecting. */
739 #define ASET(ARRAY, IDX, VAL) \
740 (eassert ((IDX) == (IDX)), \
741 eassert ((IDX) >= 0 && (IDX) < ASIZE (ARRAY)), \
742 AREF ((ARRAY), (IDX)) = (VAL))
744 /* Convenience macros for dealing with Lisp strings. */
746 #define SDATA(string) (XSTRING (string)->data + 0)
747 #define SREF(string, index) (SDATA (string)[index] + 0)
748 #define SSET(string, index, new) (SDATA (string)[index] = (new))
749 #define SCHARS(string) (XSTRING (string)->size + 0)
750 #define SBYTES(string) (STRING_BYTES (XSTRING (string)) + 0)
752 /* Avoid "differ in sign" warnings. */
753 #define SSDATA(x) ((char *) SDATA (x))
755 #define STRING_SET_CHARS(string, newsize) \
756 (XSTRING (string)->size = (newsize))
758 #define STRING_COPYIN(string, index, new, count) \
759 memcpy (SDATA (string) + index, new, count)
763 #define CHECK_TYPE(ok, Qxxxp, x) \
764 do { if (!(ok)) wrong_type_argument (Qxxxp, (x)); } while (0)
768 /* See the macros in intervals.h. */
770 typedef struct interval
*INTERVAL
;
772 /* Complain if object is not string or buffer type */
773 #define CHECK_STRING_OR_BUFFER(x) \
774 CHECK_TYPE (STRINGP (x) || BUFFERP (x), Qbuffer_or_string_p, x)
777 /* In a cons, the markbit of the car is the gc mark bit */
781 /* Please do not use the names of these elements in code other
782 than the core lisp implementation. Use XCAR and XCDR below. */
783 #ifdef HIDE_LISP_IMPLEMENTATION
788 struct Lisp_Cons
*chain
;
795 struct Lisp_Cons
*chain
;
800 /* Take the car or cdr of something known to be a cons cell. */
801 /* The _AS_LVALUE macros shouldn't be used outside of the minimal set
802 of code that has to know what a cons cell looks like. Other code not
803 part of the basic lisp implementation should assume that the car and cdr
804 fields are not accessible as lvalues. (What if we want to switch to
805 a copying collector someday? Cached cons cell field addresses may be
806 invalidated at arbitrary points.) */
807 #ifdef HIDE_LISP_IMPLEMENTATION
808 #define XCAR_AS_LVALUE(c) (XCONS ((c))->car_)
809 #define XCDR_AS_LVALUE(c) (XCONS ((c))->u.cdr_)
811 #define XCAR_AS_LVALUE(c) (XCONS ((c))->car)
812 #define XCDR_AS_LVALUE(c) (XCONS ((c))->u.cdr)
815 /* Use these from normal code. */
816 #define XCAR(c) LISP_MAKE_RVALUE (XCAR_AS_LVALUE (c))
817 #define XCDR(c) LISP_MAKE_RVALUE (XCDR_AS_LVALUE (c))
819 /* Use these to set the fields of a cons cell.
821 Note that both arguments may refer to the same object, so 'n'
822 should not be read after 'c' is first modified. Also, neither
823 argument should be evaluated more than once; side effects are
824 especially common in the second argument. */
825 #define XSETCAR(c,n) (XCAR_AS_LVALUE (c) = (n))
826 #define XSETCDR(c,n) (XCDR_AS_LVALUE (c) = (n))
828 /* Take the car or cdr of something whose type is not known. */
830 (CONSP ((c)) ? XCAR ((c)) \
831 : NILP ((c)) ? Qnil \
832 : wrong_type_argument (Qlistp, (c)))
835 (CONSP ((c)) ? XCDR ((c)) \
836 : NILP ((c)) ? Qnil \
837 : wrong_type_argument (Qlistp, (c)))
839 /* Take the car or cdr of something whose type is not known. */
840 #define CAR_SAFE(c) \
841 (CONSP ((c)) ? XCAR ((c)) : Qnil)
843 #define CDR_SAFE(c) \
844 (CONSP ((c)) ? XCDR ((c)) : Qnil)
846 /* Nonzero if STR is a multibyte string. */
847 #define STRING_MULTIBYTE(STR) \
848 (XSTRING (STR)->size_byte >= 0)
850 /* Return the length in bytes of STR. */
852 #ifdef GC_CHECK_STRING_BYTES
855 extern ptrdiff_t string_bytes (struct Lisp_String
*);
856 #define STRING_BYTES(S) string_bytes ((S))
858 #else /* not GC_CHECK_STRING_BYTES */
860 #define STRING_BYTES(STR) \
861 ((STR)->size_byte < 0 ? (STR)->size : (STR)->size_byte)
863 #endif /* not GC_CHECK_STRING_BYTES */
865 /* An upper bound on the number of bytes in a Lisp string, not
866 counting the terminating null. This a tight enough bound to
867 prevent integer overflow errors that would otherwise occur during
868 string size calculations. A string cannot contain more bytes than
869 a fixnum can represent, nor can it be so long that C pointer
870 arithmetic stops working on the string plus its terminating null.
871 Although the actual size limit (see STRING_BYTES_MAX in alloc.c)
872 may be a bit smaller than STRING_BYTES_BOUND, calculating it here
873 would expose alloc.c internal details that we'd rather keep
874 private. The cast to ptrdiff_t ensures that STRING_BYTES_BOUND is
876 #define STRING_BYTES_BOUND \
877 min (MOST_POSITIVE_FIXNUM, (ptrdiff_t) min (SIZE_MAX, PTRDIFF_MAX) - 1)
879 /* Mark STR as a unibyte string. */
880 #define STRING_SET_UNIBYTE(STR) \
881 do { if (EQ (STR, empty_multibyte_string)) \
882 (STR) = empty_unibyte_string; \
883 else XSTRING (STR)->size_byte = -1; } while (0)
885 /* Mark STR as a multibyte string. Assure that STR contains only
886 ASCII characters in advance. */
887 #define STRING_SET_MULTIBYTE(STR) \
888 do { if (EQ (STR, empty_unibyte_string)) \
889 (STR) = empty_multibyte_string; \
890 else XSTRING (STR)->size_byte = XSTRING (STR)->size; } while (0)
892 /* Get text properties. */
893 #define STRING_INTERVALS(STR) (XSTRING (STR)->intervals + 0)
895 /* Set text properties. */
896 #define STRING_SET_INTERVALS(STR, INT) (XSTRING (STR)->intervals = (INT))
898 /* In a string or vector, the sign bit of the `size' is the gc mark bit */
904 INTERVAL intervals
; /* text properties in this string */
908 /* Header of vector-like objects. This documents the layout constraints on
909 vectors and pseudovectors other than struct Lisp_Subr. It also prevents
910 compilers from being fooled by Emacs's type punning: the XSETPSEUDOVECTOR
911 and PSEUDOVECTORP macros cast their pointers to struct vectorlike_header *,
912 because when two such pointers potentially alias, a compiler won't
913 incorrectly reorder loads and stores to their size fields. See
914 <http://debbugs.gnu.org/cgi/bugreport.cgi?bug=8546>. */
915 struct vectorlike_header
919 /* Pointer to the next vector-like object. It is generally a buffer or a
920 Lisp_Vector alias, so for convenience it is a union instead of a
921 pointer: this way, one can write P->next.vector instead of ((struct
922 Lisp_Vector *) P->next). */
924 struct buffer
*buffer
;
925 struct Lisp_Vector
*vector
;
931 struct vectorlike_header header
;
932 Lisp_Object contents
[1];
935 /* If a struct is made to look like a vector, this macro returns the length
936 of the shortest vector that would hold that struct. */
937 #define VECSIZE(type) ((sizeof (type) \
938 - offsetof (struct Lisp_Vector, contents[0]) \
939 + sizeof (Lisp_Object) - 1) /* round up */ \
940 / sizeof (Lisp_Object))
942 /* Like VECSIZE, but used when the pseudo-vector has non-Lisp_Object fields
943 at the end and we need to compute the number of Lisp_Object fields (the
944 ones that the GC needs to trace). */
945 #define PSEUDOVECSIZE(type, nonlispfield) \
946 ((offsetof (type, nonlispfield) - offsetof (struct Lisp_Vector, contents[0])) \
947 / sizeof (Lisp_Object))
949 /* A char-table is a kind of vectorlike, with contents are like a
950 vector but with a few other slots. For some purposes, it makes
951 sense to handle a char-table with type struct Lisp_Vector. An
952 element of a char table can be any Lisp objects, but if it is a sub
953 char-table, we treat it a table that contains information of a
954 specific range of characters. A sub char-table has the same
955 structure as a vector. A sub char table appears only in an element
956 of a char-table, and there's no way to access it directly from
957 Emacs Lisp program. */
959 /* This is the number of slots that every char table must have. This
960 counts the ordinary slots and the top, defalt, parent, and purpose
962 #define CHAR_TABLE_STANDARD_SLOTS (VECSIZE (struct Lisp_Char_Table) - 1)
964 /* Return the number of "extra" slots in the char table CT. */
966 #define CHAR_TABLE_EXTRA_SLOTS(CT) \
967 (((CT)->header.size & PSEUDOVECTOR_SIZE_MASK) - CHAR_TABLE_STANDARD_SLOTS)
971 #define CHAR_TABLE_REF_ASCII(CT, IDX) \
972 ({struct Lisp_Char_Table *_tbl = NULL; \
975 _tbl = _tbl ? XCHAR_TABLE (_tbl->parent) : XCHAR_TABLE (CT); \
976 _val = (! SUB_CHAR_TABLE_P (_tbl->ascii) ? _tbl->ascii \
977 : XSUB_CHAR_TABLE (_tbl->ascii)->contents[IDX]); \
979 _val = _tbl->defalt; \
980 } while (NILP (_val) && ! NILP (_tbl->parent)); \
983 #else /* not __GNUC__ */
985 #define CHAR_TABLE_REF_ASCII(CT, IDX) \
986 (! NILP (XCHAR_TABLE (CT)->ascii) \
987 ? (! SUB_CHAR_TABLE_P (XCHAR_TABLE (CT)->ascii) \
988 ? XCHAR_TABLE (CT)->ascii \
989 : ! NILP (XSUB_CHAR_TABLE (XCHAR_TABLE (CT)->ascii)->contents[IDX]) \
990 ? XSUB_CHAR_TABLE (XCHAR_TABLE (CT)->ascii)->contents[IDX] \
991 : char_table_ref ((CT), (IDX))) \
992 : char_table_ref ((CT), (IDX)))
994 #endif /* not __GNUC__ */
996 /* Compute A OP B, using the unsigned comparison operator OP. A and B
997 should be integer expressions. This is not the same as
998 mathematical comparison; for example, UNSIGNED_CMP (0, <, -1)
999 returns 1. For efficiency, prefer plain unsigned comparison if A
1000 and B's sizes both fit (after integer promotion). */
1001 #define UNSIGNED_CMP(a, op, b) \
1002 (max (sizeof ((a) + 0), sizeof ((b) + 0)) <= sizeof (unsigned) \
1003 ? ((a) + (unsigned) 0) op ((b) + (unsigned) 0) \
1004 : ((a) + (uintmax_t) 0) op ((b) + (uintmax_t) 0))
1006 /* Nonzero iff C is an ASCII character. */
1007 #define ASCII_CHAR_P(c) UNSIGNED_CMP (c, <, 0x80)
1009 /* Almost equivalent to Faref (CT, IDX) with optimization for ASCII
1010 characters. Do not check validity of CT. */
1011 #define CHAR_TABLE_REF(CT, IDX) \
1012 (ASCII_CHAR_P (IDX) ? CHAR_TABLE_REF_ASCII ((CT), (IDX)) \
1013 : char_table_ref ((CT), (IDX)))
1015 /* Almost equivalent to Faref (CT, IDX). However, if the result is
1016 not a character, return IDX.
1018 For these characters, do not check validity of CT
1019 and do not follow parent. */
1020 #define CHAR_TABLE_TRANSLATE(CT, IDX) \
1021 char_table_translate (CT, IDX)
1023 /* Equivalent to Faset (CT, IDX, VAL) with optimization for ASCII and
1024 8-bit European characters. Do not check validity of CT. */
1025 #define CHAR_TABLE_SET(CT, IDX, VAL) \
1026 (ASCII_CHAR_P (IDX) && SUB_CHAR_TABLE_P (XCHAR_TABLE (CT)->ascii) \
1027 ? XSUB_CHAR_TABLE (XCHAR_TABLE (CT)->ascii)->contents[IDX] = VAL \
1028 : char_table_set (CT, IDX, VAL))
1030 #define CHARTAB_SIZE_BITS_0 6
1031 #define CHARTAB_SIZE_BITS_1 4
1032 #define CHARTAB_SIZE_BITS_2 5
1033 #define CHARTAB_SIZE_BITS_3 7
1035 extern const int chartab_size
[4];
1037 struct Lisp_Sub_Char_Table
;
1039 struct Lisp_Char_Table
1041 /* HEADER.SIZE is the vector's size field, which also holds the
1042 pseudovector type information. It holds the size, too.
1043 The size counts the defalt, parent, purpose, ascii,
1044 contents, and extras slots. */
1045 struct vectorlike_header header
;
1047 /* This holds a default value,
1048 which is used whenever the value for a specific character is nil. */
1051 /* This points to another char table, which we inherit from when the
1052 value for a specific character is nil. The `defalt' slot takes
1053 precedence over this. */
1056 /* This is a symbol which says what kind of use this char-table is
1058 Lisp_Object purpose
;
1060 /* The bottom sub char-table for characters of the range 0..127. It
1061 is nil if none of ASCII character has a specific value. */
1064 Lisp_Object contents
[(1 << CHARTAB_SIZE_BITS_0
)];
1066 /* These hold additional data. It is a vector. */
1067 Lisp_Object extras
[1];
1070 struct Lisp_Sub_Char_Table
1072 /* HEADER.SIZE is the vector's size field, which also holds the
1073 pseudovector type information. It holds the size, too. */
1074 struct vectorlike_header header
;
1076 /* Depth of this sub char-table. It should be 1, 2, or 3. A sub
1077 char-table of depth 1 contains 16 elements, and each element
1078 covers 4096 (128*32) characters. A sub char-table of depth 2
1079 contains 32 elements, and each element covers 128 characters. A
1080 sub char-table of depth 3 contains 128 elements, and each element
1081 is for one character. */
1084 /* Minimum character covered by the sub char-table. */
1085 Lisp_Object min_char
;
1087 Lisp_Object contents
[1];
1090 /* A boolvector is a kind of vectorlike, with contents are like a string. */
1091 struct Lisp_Bool_Vector
1093 /* HEADER.SIZE is the vector's size field. It doesn't have the real size,
1094 just the subtype information. */
1095 struct vectorlike_header header
;
1096 /* This is the size in bits. */
1098 /* This contains the actual bits, packed into bytes. */
1099 unsigned char data
[1];
1102 /* This structure describes a built-in function.
1103 It is generated by the DEFUN macro only.
1104 defsubr makes it into a Lisp object.
1106 This type is treated in most respects as a pseudovector,
1107 but since we never dynamically allocate or free them,
1108 we don't need a struct vectorlike_header and its 'next' field. */
1114 Lisp_Object (*a0
) (void);
1115 Lisp_Object (*a1
) (Lisp_Object
);
1116 Lisp_Object (*a2
) (Lisp_Object
, Lisp_Object
);
1117 Lisp_Object (*a3
) (Lisp_Object
, Lisp_Object
, Lisp_Object
);
1118 Lisp_Object (*a4
) (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
1119 Lisp_Object (*a5
) (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
1120 Lisp_Object (*a6
) (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
1121 Lisp_Object (*a7
) (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
1122 Lisp_Object (*a8
) (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
1123 Lisp_Object (*aUNEVALLED
) (Lisp_Object args
);
1124 Lisp_Object (*aMANY
) (ptrdiff_t, Lisp_Object
*);
1126 short min_args
, max_args
;
1127 const char *symbol_name
;
1128 const char *intspec
;
1133 /***********************************************************************
1135 ***********************************************************************/
1137 /* Interned state of a symbol. */
1139 enum symbol_interned
1141 SYMBOL_UNINTERNED
= 0,
1142 SYMBOL_INTERNED
= 1,
1143 SYMBOL_INTERNED_IN_INITIAL_OBARRAY
= 2
1146 enum symbol_redirect
1148 SYMBOL_PLAINVAL
= 4,
1149 SYMBOL_VARALIAS
= 1,
1150 SYMBOL_LOCALIZED
= 2,
1151 SYMBOL_FORWARDED
= 3
1156 unsigned gcmarkbit
: 1;
1158 /* Indicates where the value can be found:
1159 0 : it's a plain var, the value is in the `value' field.
1160 1 : it's a varalias, the value is really in the `alias' symbol.
1161 2 : it's a localized var, the value is in the `blv' object.
1162 3 : it's a forwarding variable, the value is in `forward'. */
1163 ENUM_BF (symbol_redirect
) redirect
: 3;
1165 /* Non-zero means symbol is constant, i.e. changing its value
1166 should signal an error. If the value is 3, then the var
1167 can be changed, but only by `defconst'. */
1168 unsigned constant
: 2;
1170 /* Interned state of the symbol. This is an enumerator from
1171 enum symbol_interned. */
1172 unsigned interned
: 2;
1174 /* Non-zero means that this variable has been explicitly declared
1175 special (with `defvar' etc), and shouldn't be lexically bound. */
1176 unsigned declared_special
: 1;
1178 /* The symbol's name, as a Lisp string.
1179 The name "xname" is used to intentionally break code referring to
1180 the old field "name" of type pointer to struct Lisp_String. */
1183 /* Value of the symbol or Qunbound if unbound. Which alternative of the
1184 union is used depends on the `redirect' field above. */
1187 struct Lisp_Symbol
*alias
;
1188 struct Lisp_Buffer_Local_Value
*blv
;
1189 union Lisp_Fwd
*fwd
;
1192 /* Function value of the symbol or Qunbound if not fboundp. */
1193 Lisp_Object function
;
1195 /* The symbol's property list. */
1198 /* Next symbol in obarray bucket, if the symbol is interned. */
1199 struct Lisp_Symbol
*next
;
1202 /* Value is name of symbol. */
1204 #define SYMBOL_VAL(sym) \
1205 (eassert ((sym)->redirect == SYMBOL_PLAINVAL), (sym)->val.value)
1206 #define SYMBOL_ALIAS(sym) \
1207 (eassert ((sym)->redirect == SYMBOL_VARALIAS), (sym)->val.alias)
1208 #define SYMBOL_BLV(sym) \
1209 (eassert ((sym)->redirect == SYMBOL_LOCALIZED), (sym)->val.blv)
1210 #define SYMBOL_FWD(sym) \
1211 (eassert ((sym)->redirect == SYMBOL_FORWARDED), (sym)->val.fwd)
1212 #define SET_SYMBOL_VAL(sym, v) \
1213 (eassert ((sym)->redirect == SYMBOL_PLAINVAL), (sym)->val.value = (v))
1214 #define SET_SYMBOL_ALIAS(sym, v) \
1215 (eassert ((sym)->redirect == SYMBOL_VARALIAS), (sym)->val.alias = (v))
1216 #define SET_SYMBOL_BLV(sym, v) \
1217 (eassert ((sym)->redirect == SYMBOL_LOCALIZED), (sym)->val.blv = (v))
1218 #define SET_SYMBOL_FWD(sym, v) \
1219 (eassert ((sym)->redirect == SYMBOL_FORWARDED), (sym)->val.fwd = (v))
1221 #define SYMBOL_NAME(sym) \
1222 LISP_MAKE_RVALUE (XSYMBOL (sym)->xname)
1224 /* Value is non-zero if SYM is an interned symbol. */
1226 #define SYMBOL_INTERNED_P(sym) \
1227 (XSYMBOL (sym)->interned != SYMBOL_UNINTERNED)
1229 /* Value is non-zero if SYM is interned in initial_obarray. */
1231 #define SYMBOL_INTERNED_IN_INITIAL_OBARRAY_P(sym) \
1232 (XSYMBOL (sym)->interned == SYMBOL_INTERNED_IN_INITIAL_OBARRAY)
1234 /* Value is non-zero if symbol is considered a constant, i.e. its
1235 value cannot be changed (there is an exception for keyword symbols,
1236 whose value can be set to the keyword symbol itself). */
1238 #define SYMBOL_CONSTANT_P(sym) XSYMBOL (sym)->constant
1240 #define DEFSYM(sym, name) \
1241 do { (sym) = intern_c_string ((name)); staticpro (&(sym)); } while (0)
1244 /***********************************************************************
1246 ***********************************************************************/
1248 /* The structure of a Lisp hash table. */
1250 struct Lisp_Hash_Table
1252 /* This is for Lisp; the hash table code does not refer to it. */
1253 struct vectorlike_header header
;
1255 /* Function used to compare keys. */
1258 /* Nil if table is non-weak. Otherwise a symbol describing the
1259 weakness of the table. */
1262 /* When the table is resized, and this is an integer, compute the
1263 new size by adding this to the old size. If a float, compute the
1264 new size by multiplying the old size with this factor. */
1265 Lisp_Object rehash_size
;
1267 /* Resize hash table when number of entries/ table size is >= this
1269 Lisp_Object rehash_threshold
;
1271 /* Vector of hash codes.. If hash[I] is nil, this means that that
1272 entry I is unused. */
1275 /* Vector used to chain entries. If entry I is free, next[I] is the
1276 entry number of the next free item. If entry I is non-free,
1277 next[I] is the index of the next entry in the collision chain. */
1280 /* Index of first free entry in free list. */
1281 Lisp_Object next_free
;
1283 /* Bucket vector. A non-nil entry is the index of the first item in
1284 a collision chain. This vector's size can be larger than the
1285 hash table size to reduce collisions. */
1288 /* User-supplied hash function, or nil. */
1289 Lisp_Object user_hash_function
;
1291 /* User-supplied key comparison function, or nil. */
1292 Lisp_Object user_cmp_function
;
1294 /* Only the fields above are traced normally by the GC. The ones below
1295 `count' are special and are either ignored by the GC or traced in
1296 a special way (e.g. because of weakness). */
1298 /* Number of key/value entries in the table. */
1301 /* Vector of keys and values. The key of item I is found at index
1302 2 * I, the value is found at index 2 * I + 1.
1303 This is gc_marked specially if the table is weak. */
1304 Lisp_Object key_and_value
;
1306 /* Next weak hash table if this is a weak hash table. The head
1307 of the list is in weak_hash_tables. */
1308 struct Lisp_Hash_Table
*next_weak
;
1310 /* C function to compare two keys. */
1311 int (*cmpfn
) (struct Lisp_Hash_Table
*,
1312 Lisp_Object
, EMACS_UINT
,
1313 Lisp_Object
, EMACS_UINT
);
1315 /* C function to compute hash code. */
1316 EMACS_UINT (*hashfn
) (struct Lisp_Hash_Table
*, Lisp_Object
);
1320 #define XHASH_TABLE(OBJ) \
1321 ((struct Lisp_Hash_Table *) XUNTAG (OBJ, Lisp_Vectorlike))
1323 #define XSET_HASH_TABLE(VAR, PTR) \
1324 (XSETPSEUDOVECTOR (VAR, PTR, PVEC_HASH_TABLE))
1326 #define HASH_TABLE_P(OBJ) PSEUDOVECTORP (OBJ, PVEC_HASH_TABLE)
1328 #define CHECK_HASH_TABLE(x) \
1329 CHECK_TYPE (HASH_TABLE_P (x), Qhash_table_p, x)
1331 /* Value is the key part of entry IDX in hash table H. */
1333 #define HASH_KEY(H, IDX) AREF ((H)->key_and_value, 2 * (IDX))
1335 /* Value is the value part of entry IDX in hash table H. */
1337 #define HASH_VALUE(H, IDX) AREF ((H)->key_and_value, 2 * (IDX) + 1)
1339 /* Value is the index of the next entry following the one at IDX
1342 #define HASH_NEXT(H, IDX) AREF ((H)->next, (IDX))
1344 /* Value is the hash code computed for entry IDX in hash table H. */
1346 #define HASH_HASH(H, IDX) AREF ((H)->hash, (IDX))
1348 /* Value is the index of the element in hash table H that is the
1349 start of the collision list at index IDX in the index vector of H. */
1351 #define HASH_INDEX(H, IDX) AREF ((H)->index, (IDX))
1353 /* Value is the size of hash table H. */
1355 #define HASH_TABLE_SIZE(H) ASIZE ((H)->next)
1357 /* Default size for hash tables if not specified. */
1359 #define DEFAULT_HASH_SIZE 65
1361 /* Default threshold specifying when to resize a hash table. The
1362 value gives the ratio of current entries in the hash table and the
1363 size of the hash table. */
1365 #define DEFAULT_REHASH_THRESHOLD 0.8
1367 /* Default factor by which to increase the size of a hash table. */
1369 #define DEFAULT_REHASH_SIZE 1.5
1372 /* These structures are used for various misc types. */
1374 struct Lisp_Misc_Any
/* Supertype of all Misc types. */
1376 ENUM_BF (Lisp_Misc_Type
) type
: 16; /* = Lisp_Misc_??? */
1377 unsigned gcmarkbit
: 1;
1383 ENUM_BF (Lisp_Misc_Type
) type
: 16; /* = Lisp_Misc_Marker */
1384 unsigned gcmarkbit
: 1;
1386 /* This flag is temporarily used in the functions
1387 decode/encode_coding_object to record that the marker position
1388 must be adjusted after the conversion. */
1389 unsigned int need_adjustment
: 1;
1390 /* 1 means normal insertion at the marker's position
1391 leaves the marker after the inserted text. */
1392 unsigned int insertion_type
: 1;
1393 /* This is the buffer that the marker points into, or 0 if it points nowhere.
1394 Note: a chain of markers can contain markers pointing into different
1395 buffers (the chain is per buffer_text rather than per buffer, so it's
1396 shared between indirect buffers). */
1397 /* This is used for (other than NULL-checking):
1399 - Fset_marker: check eq(oldbuf, newbuf) to avoid unchain+rechain.
1400 - unchain_marker: to find the list from which to unchain.
1401 - Fkill_buffer: to only unchain the markers of current indirect buffer.
1403 struct buffer
*buffer
;
1405 /* The remaining fields are meaningless in a marker that
1406 does not point anywhere. */
1408 /* For markers that point somewhere,
1409 this is used to chain of all the markers in a given buffer. */
1410 /* We could remove it and use an array in buffer_text instead.
1411 That would also allow to preserve it ordered. */
1412 struct Lisp_Marker
*next
;
1413 /* This is the char position where the marker points. */
1415 /* This is the byte position.
1416 It's mostly used as a charpos<->bytepos cache (i.e. it's not directly
1417 used to implement the functionality of markers, but rather to (ab)use
1418 markers as a cache for char<->byte mappings). */
1422 /* Forwarding pointer to an int variable.
1423 This is allowed only in the value cell of a symbol,
1424 and it means that the symbol's value really lives in the
1425 specified int variable. */
1428 enum Lisp_Fwd_Type type
; /* = Lisp_Fwd_Int */
1432 /* Boolean forwarding pointer to an int variable.
1433 This is like Lisp_Intfwd except that the ostensible
1434 "value" of the symbol is t if the int variable is nonzero,
1435 nil if it is zero. */
1438 enum Lisp_Fwd_Type type
; /* = Lisp_Fwd_Bool */
1442 /* Forwarding pointer to a Lisp_Object variable.
1443 This is allowed only in the value cell of a symbol,
1444 and it means that the symbol's value really lives in the
1445 specified variable. */
1448 enum Lisp_Fwd_Type type
; /* = Lisp_Fwd_Obj */
1449 Lisp_Object
*objvar
;
1452 /* Like Lisp_Objfwd except that value lives in a slot in the
1453 current buffer. Value is byte index of slot within buffer. */
1454 struct Lisp_Buffer_Objfwd
1456 enum Lisp_Fwd_Type type
; /* = Lisp_Fwd_Buffer_Obj */
1458 Lisp_Object slottype
; /* Qnil, Lisp_Int, Lisp_Symbol, or Lisp_String. */
1461 /* struct Lisp_Buffer_Local_Value is used in a symbol value cell when
1462 the symbol has buffer-local or frame-local bindings. (Exception:
1463 some buffer-local variables are built-in, with their values stored
1464 in the buffer structure itself. They are handled differently,
1465 using struct Lisp_Buffer_Objfwd.)
1467 The `realvalue' slot holds the variable's current value, or a
1468 forwarding pointer to where that value is kept. This value is the
1469 one that corresponds to the loaded binding. To read or set the
1470 variable, you must first make sure the right binding is loaded;
1471 then you can access the value in (or through) `realvalue'.
1473 `buffer' and `frame' are the buffer and frame for which the loaded
1474 binding was found. If those have changed, to make sure the right
1475 binding is loaded it is necessary to find which binding goes with
1476 the current buffer and selected frame, then load it. To load it,
1477 first unload the previous binding, then copy the value of the new
1478 binding into `realvalue' (or through it). Also update
1479 LOADED-BINDING to point to the newly loaded binding.
1481 `local_if_set' indicates that merely setting the variable creates a
1482 local binding for the current buffer. Otherwise the latter, setting
1483 the variable does not do that; only make-local-variable does that. */
1485 struct Lisp_Buffer_Local_Value
1487 /* 1 means that merely setting the variable creates a local
1488 binding for the current buffer */
1489 unsigned int local_if_set
: 1;
1490 /* 1 means this variable can have frame-local bindings, otherwise, it is
1491 can have buffer-local bindings. The two cannot be combined. */
1492 unsigned int frame_local
: 1;
1493 /* 1 means that the binding now loaded was found.
1494 Presumably equivalent to (defcell!=valcell) */
1495 unsigned int found
: 1;
1496 /* If non-NULL, a forwarding to the C var where it should also be set. */
1497 union Lisp_Fwd
*fwd
; /* Should never be (Buffer|Kboard)_Objfwd. */
1498 /* The buffer or frame for which the loaded binding was found. */
1500 /* A cons cell that holds the default value. It has the form
1501 (SYMBOL . DEFAULT-VALUE). */
1502 Lisp_Object defcell
;
1503 /* The cons cell from `where's parameter alist.
1504 It always has the form (SYMBOL . VALUE)
1505 Note that if `forward' is non-nil, VALUE may be out of date.
1506 Also if the currently loaded binding is the default binding, then
1507 this is `eq'ual to defcell. */
1508 Lisp_Object valcell
;
1511 #define BLV_FOUND(blv) \
1512 (eassert ((blv)->found == !EQ ((blv)->defcell, (blv)->valcell)), (blv)->found)
1513 #define SET_BLV_FOUND(blv, v) \
1514 (eassert ((v) == !EQ ((blv)->defcell, (blv)->valcell)), (blv)->found = (v))
1516 #define BLV_VALUE(blv) (XCDR ((blv)->valcell))
1517 #define SET_BLV_VALUE(blv, v) (XSETCDR ((blv)->valcell, v))
1519 /* START and END are markers in the overlay's buffer, and
1520 PLIST is the overlay's property list. */
1522 /* An overlay's real data content is:
1525 - insertion type of both ends
1526 - start & start_byte
1528 - next (singly linked list of overlays).
1529 - start_next and end_next (singly linked list of markers).
1530 I.e. 9words plus 2 bits, 3words of which are for external linked lists.
1533 ENUM_BF (Lisp_Misc_Type
) type
: 16; /* = Lisp_Misc_Overlay */
1534 unsigned gcmarkbit
: 1;
1536 struct Lisp_Overlay
*next
;
1537 Lisp_Object start
, end
, plist
;
1540 /* Like Lisp_Objfwd except that value lives in a slot in the
1542 struct Lisp_Kboard_Objfwd
1544 enum Lisp_Fwd_Type type
; /* = Lisp_Fwd_Kboard_Obj */
1548 /* Hold a C pointer for later use.
1549 This type of object is used in the arg to record_unwind_protect. */
1550 struct Lisp_Save_Value
1552 ENUM_BF (Lisp_Misc_Type
) type
: 16; /* = Lisp_Misc_Save_Value */
1553 unsigned gcmarkbit
: 1;
1555 /* If DOGC is set, POINTER is the address of a memory
1556 area containing INTEGER potential Lisp_Objects. */
1557 unsigned int dogc
: 1;
1563 /* A miscellaneous object, when it's on the free list. */
1566 ENUM_BF (Lisp_Misc_Type
) type
: 16; /* = Lisp_Misc_Free */
1567 unsigned gcmarkbit
: 1;
1569 union Lisp_Misc
*chain
;
1572 /* To get the type field of a union Lisp_Misc, use XMISCTYPE.
1573 It uses one of these struct subtypes to get the type field. */
1577 struct Lisp_Misc_Any u_any
; /* Supertype of all Misc types. */
1578 struct Lisp_Free u_free
;
1579 struct Lisp_Marker u_marker
;
1580 struct Lisp_Overlay u_overlay
;
1581 struct Lisp_Save_Value u_save_value
;
1586 struct Lisp_Intfwd u_intfwd
;
1587 struct Lisp_Boolfwd u_boolfwd
;
1588 struct Lisp_Objfwd u_objfwd
;
1589 struct Lisp_Buffer_Objfwd u_buffer_objfwd
;
1590 struct Lisp_Kboard_Objfwd u_kboard_objfwd
;
1593 /* Lisp floating point type */
1598 #ifdef HIDE_LISP_IMPLEMENTATION
1603 struct Lisp_Float
*chain
;
1607 #ifdef HIDE_LISP_IMPLEMENTATION
1608 #define XFLOAT_DATA(f) (0 ? XFLOAT (f)->u.data_ : XFLOAT (f)->u.data_)
1610 #define XFLOAT_DATA(f) (0 ? XFLOAT (f)->u.data : XFLOAT (f)->u.data)
1611 /* This should be used only in alloc.c, which always disables
1612 HIDE_LISP_IMPLEMENTATION. */
1613 #define XFLOAT_INIT(f,n) (XFLOAT (f)->u.data = (n))
1616 /* A character, declared with the following typedef, is a member
1617 of some character set associated with the current buffer. */
1618 #ifndef _UCHAR_T /* Protect against something in ctab.h on AIX. */
1620 typedef unsigned char UCHAR
;
1623 /* Meanings of slots in a Lisp_Compiled: */
1625 #define COMPILED_ARGLIST 0
1626 #define COMPILED_BYTECODE 1
1627 #define COMPILED_CONSTANTS 2
1628 #define COMPILED_STACK_DEPTH 3
1629 #define COMPILED_DOC_STRING 4
1630 #define COMPILED_INTERACTIVE 5
1632 /* Flag bits in a character. These also get used in termhooks.h.
1633 Richard Stallman <rms@gnu.ai.mit.edu> thinks that MULE
1634 (MUlti-Lingual Emacs) might need 22 bits for the character value
1635 itself, so we probably shouldn't use any bits lower than 0x0400000. */
1636 #define CHAR_ALT (0x0400000)
1637 #define CHAR_SUPER (0x0800000)
1638 #define CHAR_HYPER (0x1000000)
1639 #define CHAR_SHIFT (0x2000000)
1640 #define CHAR_CTL (0x4000000)
1641 #define CHAR_META (0x8000000)
1643 #define CHAR_MODIFIER_MASK \
1644 (CHAR_ALT | CHAR_SUPER | CHAR_HYPER | CHAR_SHIFT | CHAR_CTL | CHAR_META)
1647 /* Actually, the current Emacs uses 22 bits for the character value
1649 #define CHARACTERBITS 22
1652 /* The glyph datatype, used to represent characters on the display.
1653 It consists of a char code and a face id. */
1660 /* Return a glyph's character code. */
1661 #define GLYPH_CHAR(glyph) ((glyph).ch)
1663 /* Return a glyph's face ID. */
1664 #define GLYPH_FACE(glyph) ((glyph).face_id)
1666 #define SET_GLYPH_CHAR(glyph, char) ((glyph).ch = (char))
1667 #define SET_GLYPH_FACE(glyph, face) ((glyph).face_id = (face))
1668 #define SET_GLYPH(glyph, char, face) ((glyph).ch = (char), (glyph).face_id = (face))
1670 /* Return 1 if GLYPH contains valid character code. */
1671 #define GLYPH_CHAR_VALID_P(glyph) CHAR_VALID_P (GLYPH_CHAR (glyph))
1674 /* Glyph Code from a display vector may either be an integer which
1675 encodes a char code in the lower CHARACTERBITS bits and a (very small)
1676 face-id in the upper bits, or it may be a cons (CHAR . FACE-ID). */
1678 #define GLYPH_CODE_P(gc) \
1680 ? (CHARACTERP (XCAR (gc)) \
1681 && RANGED_INTEGERP (0, XCDR (gc), MAX_FACE_ID)) \
1682 : (RANGED_INTEGERP \
1684 (MAX_FACE_ID < TYPE_MAXIMUM (EMACS_INT) >> CHARACTERBITS \
1685 ? ((EMACS_INT) MAX_FACE_ID << CHARACTERBITS) | MAX_CHAR \
1686 : TYPE_MAXIMUM (EMACS_INT)))))
1688 /* The following are valid only if GLYPH_CODE_P (gc). */
1690 #define GLYPH_CODE_CHAR(gc) \
1691 (CONSP (gc) ? XINT (XCAR (gc)) : XINT (gc) & ((1 << CHARACTERBITS) - 1))
1693 #define GLYPH_CODE_FACE(gc) \
1694 (CONSP (gc) ? XINT (XCDR (gc)) : XINT (gc) >> CHARACTERBITS)
1696 #define SET_GLYPH_FROM_GLYPH_CODE(glyph, gc) \
1700 SET_GLYPH (glyph, XINT (XCAR (gc)), XINT (XCDR (gc))); \
1702 SET_GLYPH (glyph, (XINT (gc) & ((1 << CHARACTERBITS)-1)), \
1703 (XINT (gc) >> CHARACTERBITS)); \
1707 /* The ID of the mode line highlighting face. */
1708 #define GLYPH_MODE_LINE_FACE 1
1710 /* Structure to hold mouse highlight data. This is here because other
1711 header files need it for defining struct x_output etc. */
1713 /* These variables describe the range of text currently shown in its
1714 mouse-face, together with the window they apply to. As long as
1715 the mouse stays within this range, we need not redraw anything on
1716 its account. Rows and columns are glyph matrix positions in
1717 MOUSE_FACE_WINDOW. */
1718 int mouse_face_beg_row
, mouse_face_beg_col
;
1719 int mouse_face_beg_x
, mouse_face_beg_y
;
1720 int mouse_face_end_row
, mouse_face_end_col
;
1721 int mouse_face_end_x
, mouse_face_end_y
;
1722 int mouse_face_past_end
;
1723 Lisp_Object mouse_face_window
;
1724 int mouse_face_face_id
;
1725 Lisp_Object mouse_face_overlay
;
1727 /* 1 if a mouse motion event came and we didn't handle it right away because
1728 gc was in progress. */
1729 int mouse_face_deferred_gc
;
1731 /* FRAME and X, Y position of mouse when last checked for
1732 highlighting. X and Y can be negative or out of range for the frame. */
1733 struct frame
*mouse_face_mouse_frame
;
1734 int mouse_face_mouse_x
, mouse_face_mouse_y
;
1736 /* Nonzero means defer mouse-motion highlighting. */
1737 int mouse_face_defer
;
1739 /* Nonzero means that the mouse highlight should not be shown. */
1740 int mouse_face_hidden
;
1742 int mouse_face_image_state
;
1745 /* Data type checking */
1747 #define NILP(x) EQ (x, Qnil)
1749 #define NUMBERP(x) (INTEGERP (x) || FLOATP (x))
1750 #define NATNUMP(x) (INTEGERP (x) && XINT (x) >= 0)
1752 #define RANGED_INTEGERP(lo, x, hi) \
1753 (INTEGERP (x) && (lo) <= XINT (x) && XINT (x) <= (hi))
1754 #define TYPE_RANGED_INTEGERP(type, x) \
1755 (TYPE_SIGNED (type) \
1756 ? RANGED_INTEGERP (TYPE_MINIMUM (type), x, TYPE_MAXIMUM (type)) \
1757 : RANGED_INTEGERP (0, x, TYPE_MAXIMUM (type)))
1759 #define INTEGERP(x) (LISP_INT_TAG_P (XTYPE ((x))))
1760 #define SYMBOLP(x) (XTYPE ((x)) == Lisp_Symbol)
1761 #define MISCP(x) (XTYPE ((x)) == Lisp_Misc)
1762 #define VECTORLIKEP(x) (XTYPE ((x)) == Lisp_Vectorlike)
1763 #define STRINGP(x) (XTYPE ((x)) == Lisp_String)
1764 #define CONSP(x) (XTYPE ((x)) == Lisp_Cons)
1766 #define FLOATP(x) (XTYPE ((x)) == Lisp_Float)
1767 #define VECTORP(x) (VECTORLIKEP (x) && !(ASIZE (x) & PSEUDOVECTOR_FLAG))
1768 #define OVERLAYP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Overlay)
1769 #define MARKERP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Marker)
1770 #define SAVE_VALUEP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Save_Value)
1772 #define INTFWDP(x) (XFWDTYPE (x) == Lisp_Fwd_Int)
1773 #define BOOLFWDP(x) (XFWDTYPE (x) == Lisp_Fwd_Bool)
1774 #define OBJFWDP(x) (XFWDTYPE (x) == Lisp_Fwd_Obj)
1775 #define BUFFER_OBJFWDP(x) (XFWDTYPE (x) == Lisp_Fwd_Buffer_Obj)
1776 #define KBOARD_OBJFWDP(x) (XFWDTYPE (x) == Lisp_Fwd_Kboard_Obj)
1778 /* True if object X is a pseudovector whose code is CODE. The cast to struct
1779 vectorlike_header * avoids aliasing issues. */
1780 #define PSEUDOVECTORP(x, code) \
1781 TYPED_PSEUDOVECTORP(x, vectorlike_header, code)
1783 /* True if object X, with internal type struct T *, is a pseudovector whose
1785 #define TYPED_PSEUDOVECTORP(x, t, code) \
1787 && (((((struct t *) XUNTAG (x, Lisp_Vectorlike))->size \
1788 & (PSEUDOVECTOR_FLAG | (code)))) \
1789 == (PSEUDOVECTOR_FLAG | (code))))
1791 /* Test for specific pseudovector types. */
1792 #define WINDOW_CONFIGURATIONP(x) PSEUDOVECTORP (x, PVEC_WINDOW_CONFIGURATION)
1793 #define PROCESSP(x) PSEUDOVECTORP (x, PVEC_PROCESS)
1794 #define WINDOWP(x) PSEUDOVECTORP (x, PVEC_WINDOW)
1795 #define TERMINALP(x) PSEUDOVECTORP (x, PVEC_TERMINAL)
1796 /* SUBRP is special since Lisp_Subr lacks struct vectorlike_header. */
1797 #define SUBRP(x) TYPED_PSEUDOVECTORP (x, Lisp_Subr, PVEC_SUBR)
1798 #define COMPILEDP(x) PSEUDOVECTORP (x, PVEC_COMPILED)
1799 #define BUFFERP(x) PSEUDOVECTORP (x, PVEC_BUFFER)
1800 #define CHAR_TABLE_P(x) PSEUDOVECTORP (x, PVEC_CHAR_TABLE)
1801 #define SUB_CHAR_TABLE_P(x) PSEUDOVECTORP (x, PVEC_SUB_CHAR_TABLE)
1802 #define BOOL_VECTOR_P(x) PSEUDOVECTORP (x, PVEC_BOOL_VECTOR)
1803 #define FRAMEP(x) PSEUDOVECTORP (x, PVEC_FRAME)
1805 /* Test for image (image . spec) */
1806 #define IMAGEP(x) (CONSP (x) && EQ (XCAR (x), Qimage))
1811 (VECTORP (x) || STRINGP (x) || CHAR_TABLE_P (x) || BOOL_VECTOR_P (x))
1813 #define CHECK_LIST(x) \
1814 CHECK_TYPE (CONSP (x) || NILP (x), Qlistp, x)
1816 #define CHECK_LIST_CONS(x, y) \
1817 CHECK_TYPE (CONSP (x), Qlistp, y)
1819 #define CHECK_LIST_END(x, y) \
1820 CHECK_TYPE (NILP (x), Qlistp, y)
1822 #define CHECK_STRING(x) \
1823 CHECK_TYPE (STRINGP (x), Qstringp, x)
1825 #define CHECK_STRING_CAR(x) \
1826 CHECK_TYPE (STRINGP (XCAR (x)), Qstringp, XCAR (x))
1828 #define CHECK_CONS(x) \
1829 CHECK_TYPE (CONSP (x), Qconsp, x)
1831 #define CHECK_SYMBOL(x) \
1832 CHECK_TYPE (SYMBOLP (x), Qsymbolp, x)
1834 #define CHECK_CHAR_TABLE(x) \
1835 CHECK_TYPE (CHAR_TABLE_P (x), Qchar_table_p, x)
1837 #define CHECK_VECTOR(x) \
1838 CHECK_TYPE (VECTORP (x), Qvectorp, x)
1840 #define CHECK_VECTOR_OR_STRING(x) \
1841 CHECK_TYPE (VECTORP (x) || STRINGP (x), Qarrayp, x)
1843 #define CHECK_ARRAY(x, Qxxxp) \
1844 CHECK_TYPE (ARRAYP (x), Qxxxp, x)
1846 #define CHECK_VECTOR_OR_CHAR_TABLE(x) \
1847 CHECK_TYPE (VECTORP (x) || CHAR_TABLE_P (x), Qvector_or_char_table_p, x)
1849 #define CHECK_BUFFER(x) \
1850 CHECK_TYPE (BUFFERP (x), Qbufferp, x)
1852 #define CHECK_WINDOW(x) \
1853 CHECK_TYPE (WINDOWP (x), Qwindowp, x)
1855 #define CHECK_WINDOW_CONFIGURATION(x) \
1856 CHECK_TYPE (WINDOW_CONFIGURATIONP (x), Qwindow_configuration_p, x)
1858 /* This macro rejects windows on the interior of the window tree as
1859 "dead", which is what we want; this is an argument-checking macro, and
1860 the user should never get access to interior windows.
1862 A window of any sort, leaf or interior, is dead if the buffer,
1863 vchild, and hchild members are all nil. */
1865 #define CHECK_LIVE_WINDOW(x) \
1866 CHECK_TYPE (WINDOWP (x) && !NILP (XWINDOW (x)->buffer), Qwindow_live_p, x)
1868 #define CHECK_PROCESS(x) \
1869 CHECK_TYPE (PROCESSP (x), Qprocessp, x)
1871 #define CHECK_SUBR(x) \
1872 CHECK_TYPE (SUBRP (x), Qsubrp, x)
1874 #define CHECK_NUMBER(x) \
1875 CHECK_TYPE (INTEGERP (x), Qintegerp, x)
1877 #define CHECK_NATNUM(x) \
1878 CHECK_TYPE (NATNUMP (x), Qwholenump, x)
1880 #define CHECK_RANGED_INTEGER(lo, x, hi) \
1883 if (! ((lo) <= XINT (x) && XINT (x) <= (hi))) \
1884 args_out_of_range_3 \
1886 make_number ((lo) < 0 && (lo) < MOST_NEGATIVE_FIXNUM \
1887 ? MOST_NEGATIVE_FIXNUM \
1889 make_number (min (hi, MOST_POSITIVE_FIXNUM))); \
1891 #define CHECK_TYPE_RANGED_INTEGER(type, x) \
1893 if (TYPE_SIGNED (type)) \
1894 CHECK_RANGED_INTEGER (TYPE_MINIMUM (type), x, TYPE_MAXIMUM (type)); \
1896 CHECK_RANGED_INTEGER (0, x, TYPE_MAXIMUM (type)); \
1899 #define CHECK_MARKER(x) \
1900 CHECK_TYPE (MARKERP (x), Qmarkerp, x)
1902 #define CHECK_NUMBER_COERCE_MARKER(x) \
1903 do { if (MARKERP ((x))) XSETFASTINT (x, marker_position (x)); \
1904 else CHECK_TYPE (INTEGERP (x), Qinteger_or_marker_p, x); } while (0)
1906 #define XFLOATINT(n) extract_float((n))
1908 #define CHECK_FLOAT(x) \
1909 CHECK_TYPE (FLOATP (x), Qfloatp, x)
1911 #define CHECK_NUMBER_OR_FLOAT(x) \
1912 CHECK_TYPE (FLOATP (x) || INTEGERP (x), Qnumberp, x)
1914 #define CHECK_NUMBER_OR_FLOAT_COERCE_MARKER(x) \
1915 do { if (MARKERP (x)) XSETFASTINT (x, marker_position (x)); \
1916 else CHECK_TYPE (INTEGERP (x) || FLOATP (x), Qnumber_or_marker_p, x); } while (0)
1918 #define CHECK_OVERLAY(x) \
1919 CHECK_TYPE (OVERLAYP (x), Qoverlayp, x)
1921 /* Since we can't assign directly to the CAR or CDR fields of a cons
1922 cell, use these when checking that those fields contain numbers. */
1923 #define CHECK_NUMBER_CAR(x) \
1925 Lisp_Object tmp = XCAR (x); \
1926 CHECK_NUMBER (tmp); \
1927 XSETCAR ((x), tmp); \
1930 #define CHECK_NUMBER_CDR(x) \
1932 Lisp_Object tmp = XCDR (x); \
1933 CHECK_NUMBER (tmp); \
1934 XSETCDR ((x), tmp); \
1937 #define CHECK_NATNUM_CAR(x) \
1939 Lisp_Object tmp = XCAR (x); \
1940 CHECK_NATNUM (tmp); \
1941 XSETCAR ((x), tmp); \
1944 #define CHECK_NATNUM_CDR(x) \
1946 Lisp_Object tmp = XCDR (x); \
1947 CHECK_NATNUM (tmp); \
1948 XSETCDR ((x), tmp); \
1951 /* Define a built-in function for calling from Lisp.
1952 `lname' should be the name to give the function in Lisp,
1953 as a null-terminated C string.
1954 `fnname' should be the name of the function in C.
1955 By convention, it starts with F.
1956 `sname' should be the name for the C constant structure
1957 that records information on this function for internal use.
1958 By convention, it should be the same as `fnname' but with S instead of F.
1959 It's too bad that C macros can't compute this from `fnname'.
1960 `minargs' should be a number, the minimum number of arguments allowed.
1961 `maxargs' should be a number, the maximum number of arguments allowed,
1962 or else MANY or UNEVALLED.
1963 MANY means pass a vector of evaluated arguments,
1964 in the form of an integer number-of-arguments
1965 followed by the address of a vector of Lisp_Objects
1966 which contains the argument values.
1967 UNEVALLED means pass the list of unevaluated arguments
1968 `intspec' says how interactive arguments are to be fetched.
1969 If the string starts with a `(', `intspec' is evaluated and the resulting
1970 list is the list of arguments.
1971 If it's a string that doesn't start with `(', the value should follow
1972 the one of the doc string for `interactive'.
1973 A null string means call interactively with no arguments.
1974 `doc' is documentation for the user. */
1976 /* This version of DEFUN declares a function prototype with the right
1977 arguments, so we can catch errors with maxargs at compile-time. */
1979 #define DEFUN(lname, fnname, sname, minargs, maxargs, intspec, doc) \
1980 Lisp_Object fnname DEFUN_ARGS_ ## maxargs ; \
1981 static DECL_ALIGN (struct Lisp_Subr, sname) = \
1982 { PVEC_SUBR | (sizeof (struct Lisp_Subr) / sizeof (EMACS_INT)), \
1983 { (Lisp_Object (__cdecl *)(void))fnname }, \
1984 minargs, maxargs, lname, intspec, 0}; \
1986 #else /* not _MSC_VER */
1987 #define DEFUN(lname, fnname, sname, minargs, maxargs, intspec, doc) \
1988 Lisp_Object fnname DEFUN_ARGS_ ## maxargs ; \
1989 static DECL_ALIGN (struct Lisp_Subr, sname) = \
1991 { .a ## maxargs = fnname }, \
1992 minargs, maxargs, lname, intspec, 0}; \
1996 /* Note that the weird token-substitution semantics of ANSI C makes
1997 this work for MANY and UNEVALLED. */
1998 #define DEFUN_ARGS_MANY (ptrdiff_t, Lisp_Object *)
1999 #define DEFUN_ARGS_UNEVALLED (Lisp_Object)
2000 #define DEFUN_ARGS_0 (void)
2001 #define DEFUN_ARGS_1 (Lisp_Object)
2002 #define DEFUN_ARGS_2 (Lisp_Object, Lisp_Object)
2003 #define DEFUN_ARGS_3 (Lisp_Object, Lisp_Object, Lisp_Object)
2004 #define DEFUN_ARGS_4 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object)
2005 #define DEFUN_ARGS_5 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
2007 #define DEFUN_ARGS_6 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
2008 Lisp_Object, Lisp_Object)
2009 #define DEFUN_ARGS_7 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
2010 Lisp_Object, Lisp_Object, Lisp_Object)
2011 #define DEFUN_ARGS_8 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
2012 Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object)
2014 /* Non-zero if OBJ is a Lisp function. */
2015 #define FUNCTIONP(OBJ) \
2016 ((CONSP (OBJ) && EQ (XCAR (OBJ), Qlambda)) \
2017 || (SYMBOLP (OBJ) && !NILP (Ffboundp (OBJ))) \
2018 || COMPILEDP (OBJ) \
2022 is how we define the symbol for function `name' at start-up time. */
2023 extern void defsubr (struct Lisp_Subr
*);
2026 #define UNEVALLED -1
2028 extern void defvar_lisp (struct Lisp_Objfwd
*, const char *, Lisp_Object
*);
2029 extern void defvar_lisp_nopro (struct Lisp_Objfwd
*, const char *, Lisp_Object
*);
2030 extern void defvar_bool (struct Lisp_Boolfwd
*, const char *, int *);
2031 extern void defvar_int (struct Lisp_Intfwd
*, const char *, EMACS_INT
*);
2032 extern void defvar_kboard (struct Lisp_Kboard_Objfwd
*, const char *, int);
2034 /* Macros we use to define forwarded Lisp variables.
2035 These are used in the syms_of_FILENAME functions.
2037 An ordinary (not in buffer_defaults, per-buffer, or per-keyboard)
2038 lisp variable is actually a field in `struct emacs_globals'. The
2039 field's name begins with "f_", which is a convention enforced by
2040 these macros. Each such global has a corresponding #define in
2041 globals.h; the plain name should be used in the code.
2043 E.g., the global "cons_cells_consed" is declared as "int
2044 f_cons_cells_consed" in globals.h, but there is a define:
2046 #define cons_cells_consed globals.f_cons_cells_consed
2048 All C code uses the `cons_cells_consed' name. This is all done
2049 this way to support indirection for multi-threaded Emacs. */
2051 #define DEFVAR_LISP(lname, vname, doc) \
2053 static struct Lisp_Objfwd o_fwd; \
2054 defvar_lisp (&o_fwd, lname, &globals.f_ ## vname); \
2056 #define DEFVAR_LISP_NOPRO(lname, vname, doc) \
2058 static struct Lisp_Objfwd o_fwd; \
2059 defvar_lisp_nopro (&o_fwd, lname, &globals.f_ ## vname); \
2061 #define DEFVAR_BOOL(lname, vname, doc) \
2063 static struct Lisp_Boolfwd b_fwd; \
2064 defvar_bool (&b_fwd, lname, &globals.f_ ## vname); \
2066 #define DEFVAR_INT(lname, vname, doc) \
2068 static struct Lisp_Intfwd i_fwd; \
2069 defvar_int (&i_fwd, lname, &globals.f_ ## vname); \
2072 #define DEFVAR_BUFFER_DEFAULTS(lname, vname, doc) \
2074 static struct Lisp_Objfwd o_fwd; \
2075 defvar_lisp_nopro (&o_fwd, lname, &BVAR (&buffer_defaults, vname)); \
2078 #define DEFVAR_KBOARD(lname, vname, doc) \
2080 static struct Lisp_Kboard_Objfwd ko_fwd; \
2081 defvar_kboard (&ko_fwd, lname, offsetof (KBOARD, vname ## _)); \
2086 /* Structure for recording Lisp call stack for backtrace purposes. */
2088 /* The special binding stack holds the outer values of variables while
2089 they are bound by a function application or a let form, stores the
2090 code to be executed for Lisp unwind-protect forms, and stores the C
2091 functions to be called for record_unwind_protect.
2093 If func is non-zero, undoing this binding applies func to old_value;
2094 This implements record_unwind_protect.
2096 Otherwise, the element is a variable binding.
2098 If the symbol field is a symbol, it is an ordinary variable binding.
2100 Otherwise, it should be a structure (SYMBOL WHERE . CURRENT-BUFFER),
2101 which means having bound a local value while CURRENT-BUFFER was active.
2102 If WHERE is nil this means we saw the default value when binding SYMBOL.
2103 WHERE being a buffer or frame means we saw a buffer-local or frame-local
2104 value. Other values of WHERE mean an internal error. */
2106 typedef Lisp_Object (*specbinding_func
) (Lisp_Object
);
2110 Lisp_Object symbol
, old_value
;
2111 specbinding_func func
;
2112 Lisp_Object unused
; /* Dividing by 16 is faster than by 12 */
2115 extern struct specbinding
*specpdl
;
2116 extern struct specbinding
*specpdl_ptr
;
2117 extern ptrdiff_t specpdl_size
;
2119 #define SPECPDL_INDEX() (specpdl_ptr - specpdl)
2121 /* Everything needed to describe an active condition case. */
2124 /* The handler clauses and variable from the condition-case form. */
2125 /* For a handler set up in Lisp code, this is always a list.
2126 For an internal handler set up by internal_condition_case*,
2127 this can instead be the symbol t or `error'.
2128 t: handle all conditions.
2129 error: handle all conditions, and errors can run the debugger
2130 or display a backtrace. */
2131 Lisp_Object handler
;
2133 /* Fsignal stores here the condition-case clause that applies,
2134 and Fcondition_case thus knows which clause to run. */
2135 Lisp_Object chosen_clause
;
2137 /* Used to effect the longjump out to the handler. */
2138 struct catchtag
*tag
;
2140 /* The next enclosing handler. */
2141 struct handler
*next
;
2144 /* This structure helps implement the `catch' and `throw' control
2145 structure. A struct catchtag contains all the information needed
2146 to restore the state of the interpreter after a non-local jump.
2148 Handlers for error conditions (represented by `struct handler'
2149 structures) just point to a catch tag to do the cleanup required
2152 catchtag structures are chained together in the C calling stack;
2153 the `next' member points to the next outer catchtag.
2155 A call like (throw TAG VAL) searches for a catchtag whose `tag'
2156 member is TAG, and then unbinds to it. The `val' member is used to
2157 hold VAL while the stack is unwound; `val' is returned as the value
2160 All the other members are concerned with restoring the interpreter
2167 struct catchtag
*next
;
2168 struct gcpro
*gcpro
;
2170 struct backtrace
*backlist
;
2171 struct handler
*handlerlist
;
2172 EMACS_INT lisp_eval_depth
;
2174 int poll_suppress_count
;
2175 int interrupt_input_blocked
;
2176 struct byte_stack
*byte_stack
;
2179 extern Lisp_Object memory_signal_data
;
2181 /* An address near the bottom of the stack.
2182 Tells GC how to save a copy of the stack. */
2183 extern char *stack_bottom
;
2185 /* Check quit-flag and quit if it is non-nil.
2186 Typing C-g does not directly cause a quit; it only sets Vquit_flag.
2187 So the program needs to do QUIT at times when it is safe to quit.
2188 Every loop that might run for a long time or might not exit
2189 ought to do QUIT at least once, at a safe place.
2190 Unless that is impossible, of course.
2191 But it is very desirable to avoid creating loops where QUIT is impossible.
2193 Exception: if you set immediate_quit to nonzero,
2194 then the handler that responds to the C-g does the quit itself.
2195 This is a good thing to do around a loop that has no side effects
2196 and (in particular) cannot call arbitrary Lisp code.
2198 If quit-flag is set to `kill-emacs' the SIGINT handler has received
2199 a request to exit Emacs when it is safe to do. */
2202 extern void process_pending_signals (void);
2203 extern int pending_signals
;
2204 #define ELSE_PENDING_SIGNALS \
2205 else if (pending_signals) \
2206 process_pending_signals ();
2207 #else /* not SYNC_INPUT */
2208 #define ELSE_PENDING_SIGNALS
2209 #endif /* not SYNC_INPUT */
2211 extern void process_quit_flag (void);
2214 if (!NILP (Vquit_flag) && NILP (Vinhibit_quit)) \
2215 process_quit_flag (); \
2216 ELSE_PENDING_SIGNALS \
2220 /* Nonzero if ought to quit now. */
2222 #define QUITP (!NILP (Vquit_flag) && NILP (Vinhibit_quit))
2224 extern Lisp_Object Vascii_downcase_table
;
2225 extern Lisp_Object Vascii_canon_table
;
2227 /* Number of bytes of structure consed since last GC. */
2229 extern EMACS_INT consing_since_gc
;
2231 extern EMACS_INT gc_relative_threshold
;
2233 extern EMACS_INT memory_full_cons_threshold
;
2235 /* Structure for recording stack slots that need marking. */
2237 /* This is a chain of structures, each of which points at a Lisp_Object
2238 variable whose value should be marked in garbage collection.
2239 Normally every link of the chain is an automatic variable of a function,
2240 and its `val' points to some argument or local variable of the function.
2241 On exit to the function, the chain is set back to the value it had on entry.
2242 This way, no link remains in the chain when the stack frame containing the
2245 Every function that can call Feval must protect in this fashion all
2246 Lisp_Object variables whose contents will be used again. */
2248 extern struct gcpro
*gcprolist
;
2254 /* Address of first protected variable. */
2255 volatile Lisp_Object
*var
;
2257 /* Number of consecutive protected variables. */
2265 /* Values of GC_MARK_STACK during compilation:
2267 0 Use GCPRO as before
2268 1 Do the real thing, make GCPROs and UNGCPRO no-ops.
2269 2 Mark the stack, and check that everything GCPRO'd is
2271 3 Mark using GCPRO's, mark stack last, and count how many
2272 dead objects are kept alive. */
2275 #define GC_USE_GCPROS_AS_BEFORE 0
2276 #define GC_MAKE_GCPROS_NOOPS 1
2277 #define GC_MARK_STACK_CHECK_GCPROS 2
2278 #define GC_USE_GCPROS_CHECK_ZOMBIES 3
2280 #ifndef GC_MARK_STACK
2281 #define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS
2284 /* Whether we do the stack marking manually. */
2285 #define BYTE_MARK_STACK !(GC_MARK_STACK == GC_MAKE_GCPROS_NOOPS \
2286 || GC_MARK_STACK == GC_MARK_STACK_CHECK_GCPROS)
2289 #if GC_MARK_STACK == GC_MAKE_GCPROS_NOOPS
2291 /* Do something silly with gcproN vars just so gcc shuts up. */
2292 /* You get warnings from MIPSPro... */
2294 #define GCPRO1(varname) ((void) gcpro1)
2295 #define GCPRO2(varname1, varname2) ((void) gcpro2, (void) gcpro1)
2296 #define GCPRO3(varname1, varname2, varname3) \
2297 ((void) gcpro3, (void) gcpro2, (void) gcpro1)
2298 #define GCPRO4(varname1, varname2, varname3, varname4) \
2299 ((void) gcpro4, (void) gcpro3, (void) gcpro2, (void) gcpro1)
2300 #define GCPRO5(varname1, varname2, varname3, varname4, varname5) \
2301 ((void) gcpro5, (void) gcpro4, (void) gcpro3, (void) gcpro2, (void) gcpro1)
2302 #define GCPRO6(varname1, varname2, varname3, varname4, varname5, varname6) \
2303 ((void) gcpro6, (void) gcpro5, (void) gcpro4, (void) gcpro3, (void) gcpro2, \
2305 #define UNGCPRO ((void) 0)
2307 #else /* GC_MARK_STACK != GC_MAKE_GCPROS_NOOPS */
2311 #define GCPRO1(varname) \
2312 {gcpro1.next = gcprolist; gcpro1.var = &varname; gcpro1.nvars = 1; \
2313 gcprolist = &gcpro1; }
2315 #define GCPRO2(varname1, varname2) \
2316 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
2317 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
2318 gcprolist = &gcpro2; }
2320 #define GCPRO3(varname1, varname2, varname3) \
2321 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
2322 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
2323 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
2324 gcprolist = &gcpro3; }
2326 #define GCPRO4(varname1, varname2, varname3, varname4) \
2327 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
2328 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
2329 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
2330 gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \
2331 gcprolist = &gcpro4; }
2333 #define GCPRO5(varname1, varname2, varname3, varname4, varname5) \
2334 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
2335 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
2336 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
2337 gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \
2338 gcpro5.next = &gcpro4; gcpro5.var = &varname5; gcpro5.nvars = 1; \
2339 gcprolist = &gcpro5; }
2341 #define GCPRO6(varname1, varname2, varname3, varname4, varname5, varname6) \
2342 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
2343 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
2344 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
2345 gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \
2346 gcpro5.next = &gcpro4; gcpro5.var = &varname5; gcpro5.nvars = 1; \
2347 gcpro6.next = &gcpro5; gcpro6.var = &varname6; gcpro6.nvars = 1; \
2348 gcprolist = &gcpro6; }
2350 #define UNGCPRO (gcprolist = gcpro1.next)
2354 extern int gcpro_level
;
2356 #define GCPRO1(varname) \
2357 {gcpro1.next = gcprolist; gcpro1.var = &varname; gcpro1.nvars = 1; \
2358 gcpro1.level = gcpro_level++; \
2359 gcprolist = &gcpro1; }
2361 #define GCPRO2(varname1, varname2) \
2362 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
2363 gcpro1.level = gcpro_level; \
2364 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
2365 gcpro2.level = gcpro_level++; \
2366 gcprolist = &gcpro2; }
2368 #define GCPRO3(varname1, varname2, varname3) \
2369 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
2370 gcpro1.level = gcpro_level; \
2371 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
2372 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
2373 gcpro3.level = gcpro_level++; \
2374 gcprolist = &gcpro3; }
2376 #define GCPRO4(varname1, varname2, varname3, varname4) \
2377 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
2378 gcpro1.level = gcpro_level; \
2379 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
2380 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
2381 gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \
2382 gcpro4.level = gcpro_level++; \
2383 gcprolist = &gcpro4; }
2385 #define GCPRO5(varname1, varname2, varname3, varname4, varname5) \
2386 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
2387 gcpro1.level = gcpro_level; \
2388 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
2389 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
2390 gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \
2391 gcpro5.next = &gcpro4; gcpro5.var = &varname5; gcpro5.nvars = 1; \
2392 gcpro5.level = gcpro_level++; \
2393 gcprolist = &gcpro5; }
2395 #define GCPRO6(varname1, varname2, varname3, varname4, varname5, varname6) \
2396 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
2397 gcpro1.level = gcpro_level; \
2398 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
2399 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
2400 gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \
2401 gcpro5.next = &gcpro4; gcpro5.var = &varname5; gcpro5.nvars = 1; \
2402 gcpro6.next = &gcpro5; gcpro6.var = &varname6; gcpro6.nvars = 1; \
2403 gcpro6.level = gcpro_level++; \
2404 gcprolist = &gcpro6; }
2407 ((--gcpro_level != gcpro1.level) \
2409 : ((gcprolist = gcpro1.next), 0))
2411 #endif /* DEBUG_GCPRO */
2412 #endif /* GC_MARK_STACK != GC_MAKE_GCPROS_NOOPS */
2415 /* Evaluate expr, UNGCPRO, and then return the value of expr. */
2416 #define RETURN_UNGCPRO(expr) \
2419 Lisp_Object ret_ungc_val; \
2420 ret_ungc_val = (expr); \
2422 return ret_ungc_val; \
2426 /* Call staticpro (&var) to protect static variable `var'. */
2428 void staticpro (Lisp_Object
*);
2430 /* Declare a Lisp-callable function. The MAXARGS parameter has the same
2431 meaning as in the DEFUN macro, and is used to construct a prototype. */
2432 /* We can use the same trick as in the DEFUN macro to generate the
2433 appropriate prototype. */
2434 #define EXFUN(fnname, maxargs) \
2435 extern Lisp_Object fnname DEFUN_ARGS_ ## maxargs
2437 /* Forward declarations for prototypes. */
2441 /* Defined in data.c. */
2442 extern Lisp_Object Qnil
, Qt
, Qquote
, Qlambda
, Qunbound
;
2443 extern Lisp_Object Qerror_conditions
, Qerror_message
, Qtop_level
;
2444 extern Lisp_Object Qerror
, Qquit
, Qargs_out_of_range
;
2445 extern Lisp_Object Qvoid_variable
, Qvoid_function
;
2446 extern Lisp_Object Qinvalid_read_syntax
;
2447 extern Lisp_Object Qinvalid_function
, Qwrong_number_of_arguments
, Qno_catch
;
2448 extern Lisp_Object Quser_error
, Qend_of_file
, Qarith_error
, Qmark_inactive
;
2449 extern Lisp_Object Qbeginning_of_buffer
, Qend_of_buffer
, Qbuffer_read_only
;
2450 extern Lisp_Object Qtext_read_only
;
2451 extern Lisp_Object Qinteractive_form
;
2452 extern Lisp_Object Qcircular_list
;
2453 extern Lisp_Object Qintegerp
, Qwholenump
, Qsymbolp
, Qlistp
, Qconsp
;
2454 extern Lisp_Object Qstringp
, Qarrayp
, Qsequencep
, Qbufferp
;
2455 extern Lisp_Object Qchar_or_string_p
, Qmarkerp
, Qinteger_or_marker_p
, Qvectorp
;
2456 extern Lisp_Object Qbuffer_or_string_p
;
2457 extern Lisp_Object Qfboundp
;
2458 extern Lisp_Object Qchar_table_p
, Qvector_or_char_table_p
;
2460 extern Lisp_Object Qcdr
;
2462 extern Lisp_Object Qrange_error
, Qdomain_error
, Qsingularity_error
;
2463 extern Lisp_Object Qoverflow_error
, Qunderflow_error
;
2465 extern Lisp_Object Qfloatp
;
2466 extern Lisp_Object Qnumberp
, Qnumber_or_marker_p
;
2468 extern Lisp_Object Qinteger
;
2470 extern Lisp_Object Qfont_spec
, Qfont_entity
, Qfont_object
;
2472 EXFUN (Finteractive_form
, 1);
2473 EXFUN (Fbyteorder
, 0);
2475 /* Defined in frame.c */
2476 extern Lisp_Object Qframep
;
2478 /* Defined in data.c */
2480 EXFUN (Fcar_safe
, 1);
2482 EXFUN (Fcdr_safe
, 1);
2486 EXFUN (Ffboundp
, 1);
2487 EXFUN (Fsymbol_function
, 1);
2488 EXFUN (Fsymbol_name
, 1);
2489 extern Lisp_Object
indirect_function (Lisp_Object
);
2490 EXFUN (Findirect_function
, 2);
2492 EXFUN (Fsymbol_value
, 1);
2493 extern Lisp_Object
find_symbol_value (Lisp_Object
);
2495 EXFUN (Fdefault_value
, 1);
2496 EXFUN (Fset_default
, 2);
2497 EXFUN (Fdefault_boundp
, 1);
2498 EXFUN (Fmake_local_variable
, 1);
2499 EXFUN (Flocal_variable_p
, 2);
2504 EXFUN (Fstring_to_number
, 2);
2505 EXFUN (Fnumber_to_string
, 1);
2511 EXFUN (Fplus
, MANY
);
2512 EXFUN (Fminus
, MANY
);
2513 EXFUN (Ftimes
, MANY
);
2521 EXFUN (Fmake_variable_buffer_local
, 1);
2523 /* Convert the integer I to an Emacs representation, either the integer
2524 itself, or a cons of two or three integers, or if all else fails a float.
2525 I should not have side effects. */
2526 #define INTEGER_TO_CONS(i) \
2527 (! FIXNUM_OVERFLOW_P (i) \
2529 : ! ((FIXNUM_OVERFLOW_P (INTMAX_MIN >> 16) \
2530 || FIXNUM_OVERFLOW_P (UINTMAX_MAX >> 16)) \
2531 && FIXNUM_OVERFLOW_P ((i) >> 16)) \
2532 ? Fcons (make_number ((i) >> 16), make_number ((i) & 0xffff)) \
2533 : ! ((FIXNUM_OVERFLOW_P (INTMAX_MIN >> 16 >> 24) \
2534 || FIXNUM_OVERFLOW_P (UINTMAX_MAX >> 16 >> 24)) \
2535 && FIXNUM_OVERFLOW_P ((i) >> 16 >> 24)) \
2536 ? Fcons (make_number ((i) >> 16 >> 24), \
2537 Fcons (make_number ((i) >> 16 & 0xffffff), \
2538 make_number ((i) & 0xffff))) \
2541 /* Convert the Emacs representation CONS back to an integer of type
2542 TYPE, storing the result the variable VAR. Signal an error if CONS
2543 is not a valid representation or is out of range for TYPE. */
2544 #define CONS_TO_INTEGER(cons, type, var) \
2545 (TYPE_SIGNED (type) \
2546 ? ((var) = cons_to_signed (cons, TYPE_MINIMUM (type), TYPE_MAXIMUM (type))) \
2547 : ((var) = cons_to_unsigned (cons, TYPE_MAXIMUM (type))))
2548 extern intmax_t cons_to_signed (Lisp_Object
, intmax_t, intmax_t);
2549 extern uintmax_t cons_to_unsigned (Lisp_Object
, uintmax_t);
2551 extern struct Lisp_Symbol
*indirect_variable (struct Lisp_Symbol
*);
2552 extern void args_out_of_range (Lisp_Object
, Lisp_Object
) NO_RETURN
;
2553 extern void args_out_of_range_3 (Lisp_Object
, Lisp_Object
,
2554 Lisp_Object
) NO_RETURN
;
2555 extern Lisp_Object
wrong_type_argument (Lisp_Object
, Lisp_Object
) NO_RETURN
;
2556 extern Lisp_Object
do_symval_forwarding (union Lisp_Fwd
*);
2557 extern void set_internal (Lisp_Object
, Lisp_Object
, Lisp_Object
, int);
2558 extern void syms_of_data (void);
2559 extern void init_data (void);
2560 extern void swap_in_global_binding (struct Lisp_Symbol
*);
2562 /* Defined in cmds.c */
2563 EXFUN (Fend_of_line
, 1);
2564 EXFUN (Fforward_char
, 1);
2565 EXFUN (Fforward_line
, 1);
2566 extern void syms_of_cmds (void);
2567 extern void keys_of_cmds (void);
2569 /* Defined in coding.c */
2570 extern Lisp_Object Qcharset
;
2571 EXFUN (Fcoding_system_p
, 1);
2572 EXFUN (Fcoding_system_base
, 1);
2573 EXFUN (Fcoding_system_eol_type
, 1);
2574 EXFUN (Fcheck_coding_system
, 1);
2575 EXFUN (Fread_coding_system
, 2);
2576 EXFUN (Fread_non_nil_coding_system
, 1);
2577 EXFUN (Ffind_operation_coding_system
, MANY
);
2578 EXFUN (Fdecode_coding_string
, 4);
2579 extern Lisp_Object
detect_coding_system (const unsigned char *, ptrdiff_t,
2580 ptrdiff_t, int, int, Lisp_Object
);
2581 extern void init_coding (void);
2582 extern void init_coding_once (void);
2583 extern void syms_of_coding (void);
2585 /* Defined in character.c */
2586 EXFUN (Fchar_width
, 1);
2587 EXFUN (Fstring
, MANY
);
2588 extern ptrdiff_t chars_in_text (const unsigned char *, ptrdiff_t);
2589 extern ptrdiff_t multibyte_chars_in_text (const unsigned char *, ptrdiff_t);
2590 extern int multibyte_char_to_unibyte (int);
2591 extern int multibyte_char_to_unibyte_safe (int);
2592 extern void init_character_once (void);
2593 extern void syms_of_character (void);
2595 /* Defined in charset.c */
2596 extern void init_charset (void);
2597 extern void init_charset_once (void);
2598 extern void syms_of_charset (void);
2599 /* Structure forward declarations. */
2602 /* Defined in composite.c */
2603 extern void syms_of_composite (void);
2605 /* Defined in syntax.c */
2606 EXFUN (Fforward_word
, 1);
2607 EXFUN (Fskip_chars_forward
, 2);
2608 EXFUN (Fskip_chars_backward
, 2);
2609 extern void init_syntax_once (void);
2610 extern void syms_of_syntax (void);
2612 /* Defined in fns.c */
2613 extern Lisp_Object QCrehash_size
, QCrehash_threshold
;
2614 enum { NEXT_ALMOST_PRIME_LIMIT
= 11 };
2615 extern EMACS_INT
next_almost_prime (EMACS_INT
);
2616 extern Lisp_Object
larger_vector (Lisp_Object
, ptrdiff_t, ptrdiff_t);
2617 extern void sweep_weak_hash_tables (void);
2618 extern Lisp_Object Qcursor_in_echo_area
;
2619 extern Lisp_Object Qstring_lessp
;
2620 extern Lisp_Object QCsize
, QCtest
, QCweakness
, Qequal
, Qeq
, Qeql
;
2621 EMACS_UINT
hash_string (char const *, ptrdiff_t);
2622 EMACS_UINT
sxhash (Lisp_Object
, int);
2623 Lisp_Object
make_hash_table (Lisp_Object
, Lisp_Object
, Lisp_Object
,
2624 Lisp_Object
, Lisp_Object
, Lisp_Object
,
2626 ptrdiff_t hash_lookup (struct Lisp_Hash_Table
*, Lisp_Object
, EMACS_UINT
*);
2627 ptrdiff_t hash_put (struct Lisp_Hash_Table
*, Lisp_Object
, Lisp_Object
,
2629 void init_weak_hash_tables (void);
2630 extern void init_fns (void);
2631 EXFUN (Fmake_hash_table
, MANY
);
2632 EXFUN (Fgethash
, 3);
2633 EXFUN (Fputhash
, 3);
2634 EXFUN (Fremhash
, 2);
2636 EXFUN (Fidentity
, 1);
2638 EXFUN (Fappend
, MANY
);
2639 EXFUN (Fconcat
, MANY
);
2640 EXFUN (Fvconcat
, MANY
);
2641 EXFUN (Fcopy_sequence
, 1);
2642 EXFUN (Fstring_make_multibyte
, 1);
2643 EXFUN (Fstring_make_unibyte
, 1);
2644 EXFUN (Fstring_as_multibyte
, 1);
2645 EXFUN (Fstring_as_unibyte
, 1);
2646 EXFUN (Fstring_to_multibyte
, 1);
2647 EXFUN (Fsubstring
, 3);
2648 extern Lisp_Object
substring_both (Lisp_Object
, ptrdiff_t, ptrdiff_t,
2649 ptrdiff_t, ptrdiff_t);
2661 EXFUN (Freverse
, 1);
2662 EXFUN (Fnreverse
, 1);
2666 EXFUN (Fnconc
, MANY
);
2668 EXFUN (Fmapconcat
, 3);
2669 extern Lisp_Object
do_yes_or_no_p (Lisp_Object
);
2670 EXFUN (Fprovide
, 2);
2671 extern Lisp_Object
concat2 (Lisp_Object
, Lisp_Object
);
2672 extern Lisp_Object
concat3 (Lisp_Object
, Lisp_Object
, Lisp_Object
);
2673 extern Lisp_Object
nconc2 (Lisp_Object
, Lisp_Object
);
2674 extern Lisp_Object
assq_no_quit (Lisp_Object
, Lisp_Object
);
2675 extern Lisp_Object
assoc_no_quit (Lisp_Object
, Lisp_Object
);
2676 extern void clear_string_char_byte_cache (void);
2677 extern ptrdiff_t string_char_to_byte (Lisp_Object
, ptrdiff_t);
2678 extern ptrdiff_t string_byte_to_char (Lisp_Object
, ptrdiff_t);
2679 extern Lisp_Object
string_to_multibyte (Lisp_Object
);
2680 extern Lisp_Object
string_make_unibyte (Lisp_Object
);
2681 EXFUN (Fcopy_alist
, 1);
2682 EXFUN (Fplist_get
, 2);
2683 EXFUN (Fplist_put
, 3);
2684 EXFUN (Fplist_member
, 2);
2686 EXFUN (Fstring_equal
, 2);
2687 EXFUN (Fcompare_strings
, 7);
2688 EXFUN (Fstring_lessp
, 2);
2689 extern void syms_of_fns (void);
2691 /* Defined in floatfns.c */
2692 extern double extract_float (Lisp_Object
);
2694 EXFUN (Ftruncate
, 2);
2695 extern void init_floatfns (void);
2696 extern void syms_of_floatfns (void);
2697 extern Lisp_Object
fmod_float (Lisp_Object x
, Lisp_Object y
);
2699 /* Defined in fringe.c */
2700 extern void syms_of_fringe (void);
2701 extern void init_fringe (void);
2702 #ifdef HAVE_WINDOW_SYSTEM
2703 extern void mark_fringe_data (void);
2704 extern void init_fringe_once (void);
2705 #endif /* HAVE_WINDOW_SYSTEM */
2707 /* Defined in image.c */
2708 extern Lisp_Object QCascent
, QCmargin
, QCrelief
;
2709 extern Lisp_Object QCconversion
;
2710 extern int x_bitmap_mask (struct frame
*, ptrdiff_t);
2711 extern void syms_of_image (void);
2712 extern void init_image (void);
2714 /* Defined in insdel.c */
2715 extern Lisp_Object Qinhibit_modification_hooks
;
2716 extern void move_gap (ptrdiff_t);
2717 extern void move_gap_both (ptrdiff_t, ptrdiff_t);
2718 extern void buffer_overflow (void) NO_RETURN
;
2719 extern void make_gap (ptrdiff_t);
2720 extern ptrdiff_t copy_text (const unsigned char *, unsigned char *,
2721 ptrdiff_t, int, int);
2722 extern int count_combining_before (const unsigned char *,
2723 ptrdiff_t, ptrdiff_t, ptrdiff_t);
2724 extern int count_combining_after (const unsigned char *,
2725 ptrdiff_t, ptrdiff_t, ptrdiff_t);
2726 extern void insert (const char *, ptrdiff_t);
2727 extern void insert_and_inherit (const char *, ptrdiff_t);
2728 extern void insert_1 (const char *, ptrdiff_t, int, int, int);
2729 extern void insert_1_both (const char *, ptrdiff_t, ptrdiff_t,
2731 extern void insert_from_gap (ptrdiff_t, ptrdiff_t);
2732 extern void insert_from_string (Lisp_Object
, ptrdiff_t, ptrdiff_t,
2733 ptrdiff_t, ptrdiff_t, int);
2734 extern void insert_from_buffer (struct buffer
*, ptrdiff_t, ptrdiff_t, int);
2735 extern void insert_char (int);
2736 extern void insert_string (const char *);
2737 extern void insert_before_markers (const char *, ptrdiff_t);
2738 extern void insert_before_markers_and_inherit (const char *, ptrdiff_t);
2739 extern void insert_from_string_before_markers (Lisp_Object
, ptrdiff_t,
2740 ptrdiff_t, ptrdiff_t,
2742 extern void del_range (ptrdiff_t, ptrdiff_t);
2743 extern Lisp_Object
del_range_1 (ptrdiff_t, ptrdiff_t, int, int);
2744 extern void del_range_byte (ptrdiff_t, ptrdiff_t, int);
2745 extern void del_range_both (ptrdiff_t, ptrdiff_t, ptrdiff_t, ptrdiff_t, int);
2746 extern Lisp_Object
del_range_2 (ptrdiff_t, ptrdiff_t,
2747 ptrdiff_t, ptrdiff_t, int);
2748 extern void modify_region (struct buffer
*, ptrdiff_t, ptrdiff_t, int);
2749 extern void prepare_to_modify_buffer (ptrdiff_t, ptrdiff_t, ptrdiff_t *);
2750 extern void signal_after_change (ptrdiff_t, ptrdiff_t, ptrdiff_t);
2751 extern void adjust_after_insert (ptrdiff_t, ptrdiff_t, ptrdiff_t,
2752 ptrdiff_t, ptrdiff_t);
2753 extern void adjust_markers_for_delete (ptrdiff_t, ptrdiff_t,
2754 ptrdiff_t, ptrdiff_t);
2755 extern void replace_range (ptrdiff_t, ptrdiff_t, Lisp_Object
, int, int, int);
2756 extern void replace_range_2 (ptrdiff_t, ptrdiff_t, ptrdiff_t, ptrdiff_t,
2757 const char *, ptrdiff_t, ptrdiff_t, int);
2758 extern void syms_of_insdel (void);
2760 /* Defined in dispnew.c */
2761 extern Lisp_Object selected_frame
;
2762 extern Lisp_Object Vwindow_system
;
2764 EXFUN (Fredraw_frame
, 1);
2765 void duration_to_sec_usec (double, int *, int *);
2766 EXFUN (Fsleep_for
, 2);
2767 EXFUN (Fredisplay
, 1);
2768 extern Lisp_Object
sit_for (Lisp_Object
, int, int);
2769 extern void init_display (void);
2770 extern void syms_of_display (void);
2772 /* Defined in xdisp.c */
2773 extern Lisp_Object Qinhibit_point_motion_hooks
;
2774 extern Lisp_Object Qinhibit_redisplay
, Qdisplay
;
2775 extern Lisp_Object Qmenu_bar_update_hook
;
2776 extern Lisp_Object Qwindow_scroll_functions
;
2777 extern Lisp_Object Qoverriding_local_map
, Qoverriding_terminal_local_map
;
2778 extern Lisp_Object Qimage
, Qtext
, Qboth
, Qboth_horiz
, Qtext_image_horiz
;
2779 extern Lisp_Object Qspace
, Qcenter
, QCalign_to
;
2780 extern Lisp_Object Qbar
, Qhbar
, Qbox
, Qhollow
;
2781 extern Lisp_Object Qleft_margin
, Qright_margin
;
2782 extern Lisp_Object Qglyphless_char
;
2783 extern Lisp_Object QCdata
, QCfile
;
2784 extern Lisp_Object QCmap
;
2785 extern Lisp_Object Qrisky_local_variable
;
2786 extern struct frame
*last_glyphless_glyph_frame
;
2787 extern int last_glyphless_glyph_face_id
;
2788 extern int last_glyphless_glyph_merged_face_id
;
2789 extern int noninteractive_need_newline
;
2790 extern Lisp_Object echo_area_buffer
[2];
2791 extern void add_to_log (const char *, Lisp_Object
, Lisp_Object
);
2792 extern void check_message_stack (void);
2793 extern void setup_echo_area_for_printing (int);
2794 extern int push_message (void);
2795 extern Lisp_Object
pop_message_unwind (Lisp_Object
);
2796 extern Lisp_Object
restore_message_unwind (Lisp_Object
);
2797 extern void restore_message (void);
2798 extern Lisp_Object
current_message (void);
2799 extern void clear_message (int, int);
2800 extern void message (const char *, ...) ATTRIBUTE_FORMAT_PRINTF (1, 2);
2801 extern void message1 (const char *);
2802 extern void message1_nolog (const char *);
2803 extern void message2 (const char *, ptrdiff_t, int);
2804 extern void message2_nolog (const char *, ptrdiff_t, int);
2805 extern void message3 (Lisp_Object
, ptrdiff_t, int);
2806 extern void message3_nolog (Lisp_Object
, ptrdiff_t, int);
2807 extern void message_dolog (const char *, ptrdiff_t, int, int);
2808 extern void message_with_string (const char *, Lisp_Object
, int);
2809 extern void message_log_maybe_newline (void);
2810 extern void update_echo_area (void);
2811 extern void truncate_echo_area (ptrdiff_t);
2812 extern void redisplay (void);
2813 extern void redisplay_preserve_echo_area (int);
2814 extern void prepare_menu_bars (void);
2816 void set_frame_cursor_types (struct frame
*, Lisp_Object
);
2817 extern void syms_of_xdisp (void);
2818 extern void init_xdisp (void);
2819 extern Lisp_Object
safe_eval (Lisp_Object
);
2820 extern int pos_visible_p (struct window
*, ptrdiff_t, int *,
2821 int *, int *, int *, int *, int *);
2823 /* Defined in xsettings.c */
2824 extern void syms_of_xsettings (void);
2826 /* Defined in vm-limit.c. */
2827 extern void memory_warnings (void *, void (*warnfun
) (const char *));
2829 /* Defined in alloc.c */
2830 extern void check_pure_size (void);
2831 extern void allocate_string_data (struct Lisp_String
*, EMACS_INT
, EMACS_INT
);
2832 extern void reset_malloc_hooks (void);
2833 extern void uninterrupt_malloc (void);
2834 extern void malloc_warning (const char *);
2835 extern void memory_full (size_t) NO_RETURN
;
2836 extern void buffer_memory_full (ptrdiff_t) NO_RETURN
;
2837 extern int survives_gc_p (Lisp_Object
);
2838 extern void mark_object (Lisp_Object
);
2839 #if defined REL_ALLOC && !defined SYSTEM_MALLOC
2840 extern void refill_memory_reserve (void);
2842 extern const char *pending_malloc_warning
;
2843 extern Lisp_Object
*stack_base
;
2845 extern Lisp_Object
list1 (Lisp_Object
);
2846 extern Lisp_Object
list2 (Lisp_Object
, Lisp_Object
);
2847 extern Lisp_Object
list3 (Lisp_Object
, Lisp_Object
, Lisp_Object
);
2848 extern Lisp_Object
list4 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
2849 extern Lisp_Object
list5 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
,
2851 EXFUN (Flist
, MANY
);
2852 EXFUN (Fmake_list
, 2);
2853 extern Lisp_Object
allocate_misc (void);
2854 EXFUN (Fmake_vector
, 2);
2855 EXFUN (Fvector
, MANY
);
2856 EXFUN (Fmake_symbol
, 1);
2857 EXFUN (Fmake_marker
, 0);
2858 extern void string_overflow (void) NO_RETURN
;
2859 EXFUN (Fmake_string
, 2);
2860 extern Lisp_Object
build_string (const char *);
2861 extern Lisp_Object
make_string (const char *, ptrdiff_t);
2862 extern Lisp_Object
make_unibyte_string (const char *, ptrdiff_t);
2863 extern Lisp_Object
make_multibyte_string (const char *, ptrdiff_t, ptrdiff_t);
2864 extern Lisp_Object
make_event_array (int, Lisp_Object
*);
2865 extern Lisp_Object
make_uninit_string (EMACS_INT
);
2866 extern Lisp_Object
make_uninit_multibyte_string (EMACS_INT
, EMACS_INT
);
2867 extern Lisp_Object
make_string_from_bytes (const char *, ptrdiff_t, ptrdiff_t);
2868 extern Lisp_Object
make_specified_string (const char *,
2869 ptrdiff_t, ptrdiff_t, int);
2870 EXFUN (Fpurecopy
, 1);
2871 extern Lisp_Object
make_pure_string (const char *, ptrdiff_t, ptrdiff_t, int);
2872 extern Lisp_Object
make_pure_c_string (const char *data
);
2873 extern Lisp_Object
pure_cons (Lisp_Object
, Lisp_Object
);
2874 extern Lisp_Object
make_pure_vector (ptrdiff_t);
2875 EXFUN (Fgarbage_collect
, 0);
2876 EXFUN (Fmake_byte_code
, MANY
);
2877 EXFUN (Fmake_bool_vector
, 2);
2878 extern Lisp_Object Qchar_table_extra_slots
;
2879 extern struct Lisp_Vector
*allocate_vector (EMACS_INT
);
2880 extern struct Lisp_Vector
*allocate_pseudovector (int memlen
, int lisplen
, int tag
);
2881 #define ALLOCATE_PSEUDOVECTOR(typ,field,tag) \
2883 allocate_pseudovector \
2884 (VECSIZE (typ), PSEUDOVECSIZE (typ, field), tag))
2885 extern struct Lisp_Hash_Table
*allocate_hash_table (void);
2886 extern struct window
*allocate_window (void);
2887 extern struct frame
*allocate_frame (void);
2888 extern struct Lisp_Process
*allocate_process (void);
2889 extern struct terminal
*allocate_terminal (void);
2890 extern int gc_in_progress
;
2891 extern int abort_on_gc
;
2892 extern Lisp_Object
make_float (double);
2893 extern void display_malloc_warning (void);
2894 extern ptrdiff_t inhibit_garbage_collection (void);
2895 extern Lisp_Object
make_save_value (void *, ptrdiff_t);
2896 extern void free_marker (Lisp_Object
);
2897 extern void free_cons (struct Lisp_Cons
*);
2898 extern void init_alloc_once (void);
2899 extern void init_alloc (void);
2900 extern void syms_of_alloc (void);
2901 extern struct buffer
* allocate_buffer (void);
2902 extern int valid_lisp_object_p (Lisp_Object
);
2905 /* Defined in ralloc.c */
2906 extern void *r_alloc (void **, size_t);
2907 extern void r_alloc_free (void **);
2908 extern void *r_re_alloc (void **, size_t);
2909 extern void r_alloc_reset_variable (void **, void **);
2912 /* Defined in chartab.c */
2913 EXFUN (Fmake_char_table
, 2);
2914 EXFUN (Fset_char_table_parent
, 2);
2915 EXFUN (Fchar_table_extra_slot
, 2);
2916 EXFUN (Fset_char_table_extra_slot
, 3);
2917 EXFUN (Fset_char_table_range
, 3);
2918 EXFUN (Foptimize_char_table
, 2);
2919 extern Lisp_Object
copy_char_table (Lisp_Object
);
2920 extern Lisp_Object
char_table_ref (Lisp_Object
, int);
2921 extern Lisp_Object
char_table_ref_and_range (Lisp_Object
, int,
2923 extern Lisp_Object
char_table_set (Lisp_Object
, int, Lisp_Object
);
2924 extern Lisp_Object
char_table_set_range (Lisp_Object
, int, int,
2926 extern int char_table_translate (Lisp_Object
, int);
2927 extern void map_char_table (void (*) (Lisp_Object
, Lisp_Object
,
2929 Lisp_Object
, Lisp_Object
, Lisp_Object
);
2930 extern void map_char_table_for_charset (void (*c_function
) (Lisp_Object
, Lisp_Object
),
2931 Lisp_Object
, Lisp_Object
,
2932 Lisp_Object
, struct charset
*,
2933 unsigned, unsigned);
2934 extern Lisp_Object
uniprop_table (Lisp_Object
);
2935 extern void syms_of_chartab (void);
2937 /* Defined in print.c */
2938 extern Lisp_Object Vprin1_to_string_buffer
;
2939 extern void debug_print (Lisp_Object
) EXTERNALLY_VISIBLE
;
2941 EXFUN (Fprin1_to_string
, 2);
2944 EXFUN (Ferror_message_string
, 1);
2945 extern Lisp_Object Qstandard_output
;
2946 extern Lisp_Object Qexternal_debugging_output
;
2947 extern void temp_output_buffer_setup (const char *);
2948 extern int print_level
;
2949 extern Lisp_Object Qprint_escape_newlines
;
2950 extern void write_string (const char *, int);
2951 extern void print_error_message (Lisp_Object
, Lisp_Object
, const char *,
2953 extern Lisp_Object internal_with_output_to_temp_buffer
2954 (const char *, Lisp_Object (*) (Lisp_Object
), Lisp_Object
);
2955 #define FLOAT_TO_STRING_BUFSIZE 350
2956 extern void float_to_string (char *, double);
2957 extern void syms_of_print (void);
2959 /* Defined in doprnt.c */
2960 extern ptrdiff_t doprnt (char *, ptrdiff_t, const char *, const char *,
2962 extern ptrdiff_t esprintf (char *, char const *, ...)
2963 ATTRIBUTE_FORMAT_PRINTF (2, 3);
2964 extern ptrdiff_t exprintf (char **, ptrdiff_t *, char const *, ptrdiff_t,
2966 ATTRIBUTE_FORMAT_PRINTF (5, 6);
2967 extern ptrdiff_t evxprintf (char **, ptrdiff_t *, char const *, ptrdiff_t,
2968 char const *, va_list)
2969 ATTRIBUTE_FORMAT_PRINTF (5, 0);
2971 /* Defined in lread.c. */
2972 extern Lisp_Object Qvariable_documentation
, Qstandard_input
;
2973 extern Lisp_Object Qbackquote
, Qcomma
, Qcomma_at
, Qcomma_dot
, Qfunction
;
2975 EXFUN (Fread_from_string
, 3);
2977 EXFUN (Fintern_soft
, 2);
2978 EXFUN (Funintern
, 2);
2980 EXFUN (Fget_load_suffixes
, 0);
2981 EXFUN (Fread_char
, 3);
2982 EXFUN (Fread_event
, 3);
2983 extern Lisp_Object
check_obarray (Lisp_Object
);
2984 extern Lisp_Object
intern (const char *);
2985 extern Lisp_Object
intern_c_string (const char *);
2986 extern Lisp_Object
oblookup (Lisp_Object
, const char *, ptrdiff_t, ptrdiff_t);
2987 #define LOADHIST_ATTACH(x) \
2989 if (initialized) Vcurrent_load_list = Fcons (x, Vcurrent_load_list); \
2991 extern int openp (Lisp_Object
, Lisp_Object
, Lisp_Object
,
2992 Lisp_Object
*, Lisp_Object
);
2993 Lisp_Object
string_to_number (char const *, int, int);
2994 extern void map_obarray (Lisp_Object
, void (*) (Lisp_Object
, Lisp_Object
),
2996 extern void dir_warning (const char *, Lisp_Object
);
2997 extern void close_load_descs (void);
2998 extern void init_obarray (void);
2999 extern void init_lread (void);
3000 extern void syms_of_lread (void);
3002 /* Defined in eval.c. */
3003 extern Lisp_Object Qautoload
, Qexit
, Qinteractive
, Qcommandp
, Qdefun
, Qmacro
;
3004 extern Lisp_Object Qinhibit_quit
, Qclosure
;
3005 extern Lisp_Object Qand_rest
;
3006 extern Lisp_Object Vautoload_queue
;
3007 extern Lisp_Object Vsignaling_function
;
3008 extern Lisp_Object inhibit_lisp_code
;
3009 extern int handling_signal
;
3011 extern struct catchtag
*catchlist
;
3012 extern struct handler
*handlerlist
;
3014 /* To run a normal hook, use the appropriate function from the list below.
3015 The calling convention:
3017 if (!NILP (Vrun_hooks))
3018 call1 (Vrun_hooks, Qmy_funny_hook);
3020 should no longer be used. */
3021 extern Lisp_Object Vrun_hooks
;
3022 EXFUN (Frun_hooks
, MANY
);
3023 EXFUN (Frun_hook_with_args
, MANY
);
3024 EXFUN (Frun_hook_with_args_until_failure
, MANY
);
3025 extern void run_hook_with_args_2 (Lisp_Object
, Lisp_Object
, Lisp_Object
);
3026 extern Lisp_Object
run_hook_with_args (ptrdiff_t nargs
, Lisp_Object
*args
,
3027 Lisp_Object (*funcall
)
3028 (ptrdiff_t nargs
, Lisp_Object
*args
));
3029 EXFUN (Fprogn
, UNEVALLED
);
3030 EXFUN (Finteractive_p
, 0);
3031 EXFUN (Fthrow
, 2) NO_RETURN
;
3033 extern void xsignal (Lisp_Object
, Lisp_Object
) NO_RETURN
;
3034 extern void xsignal0 (Lisp_Object
) NO_RETURN
;
3035 extern void xsignal1 (Lisp_Object
, Lisp_Object
) NO_RETURN
;
3036 extern void xsignal2 (Lisp_Object
, Lisp_Object
, Lisp_Object
) NO_RETURN
;
3037 extern void xsignal3 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
) NO_RETURN
;
3038 extern void signal_error (const char *, Lisp_Object
) NO_RETURN
;
3039 EXFUN (Fcommandp
, 2);
3040 EXFUN (Ffunctionp
, 1);
3042 extern Lisp_Object
eval_sub (Lisp_Object form
);
3043 EXFUN (Fapply
, MANY
);
3044 EXFUN (Ffuncall
, MANY
);
3045 extern Lisp_Object
apply1 (Lisp_Object
, Lisp_Object
);
3046 extern Lisp_Object
call0 (Lisp_Object
);
3047 extern Lisp_Object
call1 (Lisp_Object
, Lisp_Object
);
3048 extern Lisp_Object
call2 (Lisp_Object
, Lisp_Object
, Lisp_Object
);
3049 extern Lisp_Object
call3 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
3050 extern Lisp_Object
call4 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
3051 extern Lisp_Object
call5 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
3052 extern Lisp_Object
call6 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
3053 extern Lisp_Object
call7 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
3054 EXFUN (Fdo_auto_save
, 2);
3055 extern Lisp_Object
internal_catch (Lisp_Object
, Lisp_Object (*) (Lisp_Object
), Lisp_Object
);
3056 extern Lisp_Object
internal_lisp_condition_case (Lisp_Object
, Lisp_Object
, Lisp_Object
);
3057 extern Lisp_Object
internal_condition_case (Lisp_Object (*) (void), Lisp_Object
, Lisp_Object (*) (Lisp_Object
));
3058 extern Lisp_Object
internal_condition_case_1 (Lisp_Object (*) (Lisp_Object
), Lisp_Object
, Lisp_Object
, Lisp_Object (*) (Lisp_Object
));
3059 extern Lisp_Object
internal_condition_case_2 (Lisp_Object (*) (Lisp_Object
, Lisp_Object
), Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object (*) (Lisp_Object
));
3060 extern Lisp_Object
internal_condition_case_n (Lisp_Object (*) (ptrdiff_t, Lisp_Object
*), ptrdiff_t, Lisp_Object
*, Lisp_Object
, Lisp_Object (*) (Lisp_Object
));
3061 extern void specbind (Lisp_Object
, Lisp_Object
);
3062 extern void record_unwind_protect (Lisp_Object (*) (Lisp_Object
), Lisp_Object
);
3063 extern Lisp_Object
unbind_to (ptrdiff_t, Lisp_Object
);
3064 extern void error (const char *, ...) NO_RETURN
ATTRIBUTE_FORMAT_PRINTF (1, 2);
3065 extern void verror (const char *, va_list)
3066 NO_RETURN
ATTRIBUTE_FORMAT_PRINTF (1, 0);
3067 extern void do_autoload (Lisp_Object
, Lisp_Object
);
3068 extern Lisp_Object
un_autoload (Lisp_Object
);
3069 extern void init_eval_once (void);
3070 extern Lisp_Object
safe_call (ptrdiff_t, Lisp_Object
*);
3071 extern Lisp_Object
safe_call1 (Lisp_Object
, Lisp_Object
);
3072 extern Lisp_Object
safe_call2 (Lisp_Object
, Lisp_Object
, Lisp_Object
);
3073 extern void init_eval (void);
3075 extern void mark_backtrace (void);
3077 extern void syms_of_eval (void);
3079 /* Defined in editfns.c */
3080 extern Lisp_Object Qfield
;
3081 EXFUN (Fcurrent_message
, 0);
3082 EXFUN (Fgoto_char
, 1);
3083 EXFUN (Fpoint_max_marker
, 0);
3085 EXFUN (Fpoint_marker
, 0);
3086 EXFUN (Fline_beginning_position
, 1);
3087 EXFUN (Fline_end_position
, 1);
3088 EXFUN (Ffollowing_char
, 0);
3089 EXFUN (Fprevious_char
, 0);
3090 EXFUN (Fchar_after
, 1);
3091 EXFUN (Finsert
, MANY
);
3092 EXFUN (Finsert_char
, 3);
3093 extern void insert1 (Lisp_Object
);
3098 EXFUN (Fformat
, MANY
);
3099 EXFUN (Fmessage
, MANY
);
3100 extern Lisp_Object
format2 (const char *, Lisp_Object
, Lisp_Object
);
3101 EXFUN (Fbuffer_substring
, 2);
3102 EXFUN (Fbuffer_string
, 0);
3103 extern Lisp_Object
save_excursion_save (void);
3104 extern Lisp_Object
save_restriction_save (void);
3105 extern Lisp_Object
save_excursion_restore (Lisp_Object
);
3106 extern Lisp_Object
save_restriction_restore (Lisp_Object
);
3107 EXFUN (Fchar_to_string
, 1);
3108 EXFUN (Fdelete_region
, 2);
3109 EXFUN (Fnarrow_to_region
, 2);
3111 EXFUN (Fuser_login_name
, 1);
3112 EXFUN (Fsystem_name
, 0);
3113 EXFUN (Fcurrent_time
, 0);
3114 EXFUN (Fget_internal_run_time
, 0);
3115 extern Lisp_Object
make_buffer_string (ptrdiff_t, ptrdiff_t, int);
3116 extern Lisp_Object
make_buffer_string_both (ptrdiff_t, ptrdiff_t, ptrdiff_t,
3118 extern void init_editfns (void);
3119 const char *get_system_name (void);
3120 extern void syms_of_editfns (void);
3121 EXFUN (Fconstrain_to_field
, 5);
3122 EXFUN (Ffield_end
, 3);
3123 extern void set_time_zone_rule (const char *);
3125 /* Defined in buffer.c */
3126 extern int mouse_face_overlay_overlaps (Lisp_Object
);
3127 extern void nsberror (Lisp_Object
) NO_RETURN
;
3128 EXFUN (Fset_buffer_multibyte
, 1);
3129 EXFUN (Foverlay_start
, 1);
3130 EXFUN (Foverlay_end
, 1);
3131 extern void adjust_overlays_for_insert (ptrdiff_t, ptrdiff_t);
3132 extern void adjust_overlays_for_delete (ptrdiff_t, ptrdiff_t);
3133 extern void fix_start_end_in_overlays (ptrdiff_t, ptrdiff_t);
3134 extern void report_overlay_modification (Lisp_Object
, Lisp_Object
, int,
3135 Lisp_Object
, Lisp_Object
, Lisp_Object
);
3136 extern int overlay_touches_p (ptrdiff_t);
3137 extern Lisp_Object Vbuffer_alist
;
3138 EXFUN (Fget_buffer
, 1);
3139 EXFUN (Fget_buffer_create
, 1);
3140 EXFUN (Fgenerate_new_buffer_name
, 2);
3141 EXFUN (Fset_buffer
, 1);
3142 extern Lisp_Object
set_buffer_if_live (Lisp_Object
);
3143 EXFUN (Fbarf_if_buffer_read_only
, 0);
3144 EXFUN (Fcurrent_buffer
, 0);
3145 EXFUN (Fother_buffer
, 3);
3146 extern Lisp_Object
other_buffer_safely (Lisp_Object
);
3147 EXFUN (Foverlay_get
, 2);
3148 EXFUN (Fbuffer_modified_p
, 1);
3149 EXFUN (Fset_buffer_modified_p
, 1);
3150 EXFUN (Fkill_buffer
, 1);
3151 EXFUN (Fkill_all_local_variables
, 0);
3152 EXFUN (Fbuffer_enable_undo
, 1);
3153 EXFUN (Ferase_buffer
, 0);
3154 extern Lisp_Object Qpriority
, Qwindow
, Qbefore_string
, Qafter_string
;
3155 extern Lisp_Object
get_truename_buffer (Lisp_Object
);
3156 extern struct buffer
*all_buffers
;
3157 EXFUN (Fprevious_overlay_change
, 1);
3158 EXFUN (Fbuffer_file_name
, 1);
3159 extern void init_buffer_once (void);
3160 extern void init_buffer (void);
3161 extern void syms_of_buffer (void);
3162 extern void keys_of_buffer (void);
3164 /* Defined in marker.c */
3166 EXFUN (Fmarker_position
, 1);
3167 EXFUN (Fmarker_buffer
, 1);
3168 EXFUN (Fcopy_marker
, 2);
3169 EXFUN (Fset_marker
, 3);
3170 extern ptrdiff_t marker_position (Lisp_Object
);
3171 extern ptrdiff_t marker_byte_position (Lisp_Object
);
3172 extern void clear_charpos_cache (struct buffer
*);
3173 extern ptrdiff_t charpos_to_bytepos (ptrdiff_t);
3174 extern ptrdiff_t buf_charpos_to_bytepos (struct buffer
*, ptrdiff_t);
3175 extern ptrdiff_t buf_bytepos_to_charpos (struct buffer
*, ptrdiff_t);
3176 extern void unchain_marker (struct Lisp_Marker
*marker
);
3177 extern Lisp_Object
set_marker_restricted (Lisp_Object
, Lisp_Object
, Lisp_Object
);
3178 extern Lisp_Object
set_marker_both (Lisp_Object
, Lisp_Object
, ptrdiff_t, ptrdiff_t);
3179 extern Lisp_Object
set_marker_restricted_both (Lisp_Object
, Lisp_Object
,
3180 ptrdiff_t, ptrdiff_t);
3181 extern void syms_of_marker (void);
3183 /* Defined in fileio.c */
3185 extern Lisp_Object Qfile_error
;
3186 extern Lisp_Object Qfile_exists_p
;
3187 extern Lisp_Object Qfile_directory_p
;
3188 extern Lisp_Object Qinsert_file_contents
;
3189 extern Lisp_Object Qfile_name_history
;
3190 EXFUN (Ffind_file_name_handler
, 2);
3191 EXFUN (Ffile_name_as_directory
, 1);
3192 EXFUN (Fexpand_file_name
, 2);
3193 EXFUN (Ffile_name_nondirectory
, 1);
3194 EXFUN (Fsubstitute_in_file_name
, 1);
3195 EXFUN (Ffile_symlink_p
, 1);
3196 EXFUN (Fverify_visited_file_modtime
, 1);
3197 EXFUN (Ffile_exists_p
, 1);
3198 EXFUN (Ffile_name_absolute_p
, 1);
3199 EXFUN (Fdirectory_file_name
, 1);
3200 EXFUN (Ffile_name_directory
, 1);
3201 extern Lisp_Object
expand_and_dir_to_file (Lisp_Object
, Lisp_Object
);
3202 EXFUN (Ffile_accessible_directory_p
, 1);
3203 EXFUN (Funhandled_file_name_directory
, 1);
3204 EXFUN (Ffile_directory_p
, 1);
3205 EXFUN (Fwrite_region
, 7);
3206 EXFUN (Ffile_readable_p
, 1);
3207 EXFUN (Fread_file_name
, 6);
3208 extern Lisp_Object
close_file_unwind (Lisp_Object
);
3209 extern Lisp_Object
restore_point_unwind (Lisp_Object
);
3210 extern void report_file_error (const char *, Lisp_Object
) NO_RETURN
;
3211 extern int internal_delete_file (Lisp_Object
);
3212 extern void syms_of_fileio (void);
3213 extern Lisp_Object
make_temp_name (Lisp_Object
, int);
3214 extern Lisp_Object Qdelete_file
;
3216 /* Defined in search.c */
3217 extern void shrink_regexp_cache (void);
3218 EXFUN (Fstring_match
, 3);
3219 extern void restore_search_regs (void);
3220 EXFUN (Fmatch_data
, 3);
3221 EXFUN (Fset_match_data
, 2);
3222 EXFUN (Fmatch_beginning
, 1);
3223 EXFUN (Fmatch_end
, 1);
3224 extern void record_unwind_save_match_data (void);
3225 struct re_registers
;
3226 extern struct re_pattern_buffer
*compile_pattern (Lisp_Object
,
3227 struct re_registers
*,
3228 Lisp_Object
, int, int);
3229 extern ptrdiff_t fast_string_match (Lisp_Object
, Lisp_Object
);
3230 extern ptrdiff_t fast_c_string_match_ignore_case (Lisp_Object
, const char *);
3231 extern ptrdiff_t fast_string_match_ignore_case (Lisp_Object
, Lisp_Object
);
3232 extern ptrdiff_t fast_looking_at (Lisp_Object
, ptrdiff_t, ptrdiff_t,
3233 ptrdiff_t, ptrdiff_t, Lisp_Object
);
3234 extern ptrdiff_t scan_buffer (int, ptrdiff_t, ptrdiff_t, ptrdiff_t,
3236 extern EMACS_INT
scan_newline (ptrdiff_t, ptrdiff_t, ptrdiff_t, ptrdiff_t,
3238 extern ptrdiff_t find_next_newline (ptrdiff_t, int);
3239 extern ptrdiff_t find_next_newline_no_quit (ptrdiff_t, ptrdiff_t);
3240 extern ptrdiff_t find_before_next_newline (ptrdiff_t, ptrdiff_t, ptrdiff_t);
3241 extern void syms_of_search (void);
3242 extern void clear_regexp_cache (void);
3244 /* Defined in minibuf.c */
3246 extern Lisp_Object Qcompletion_ignore_case
;
3247 extern Lisp_Object Vminibuffer_list
;
3248 extern Lisp_Object last_minibuf_string
;
3249 EXFUN (Fcompleting_read
, 8);
3250 EXFUN (Fread_from_minibuffer
, 7);
3251 EXFUN (Fread_variable
, 2);
3252 EXFUN (Fread_buffer
, 3);
3253 EXFUN (Fread_minibuffer
, 2);
3254 EXFUN (Feval_minibuffer
, 2);
3255 EXFUN (Fread_string
, 5);
3256 EXFUN (Fassoc_string
, 3);
3257 extern Lisp_Object
get_minibuffer (EMACS_INT
);
3258 extern void init_minibuf_once (void);
3259 extern void syms_of_minibuf (void);
3261 /* Defined in callint.c */
3263 extern Lisp_Object Qminus
, Qplus
;
3264 extern Lisp_Object Qwhen
;
3265 extern Lisp_Object Qcall_interactively
, Qmouse_leave_buffer_hook
;
3266 EXFUN (Fprefix_numeric_value
, 1);
3267 extern void syms_of_callint (void);
3269 /* Defined in casefiddle.c */
3271 extern Lisp_Object Qidentity
;
3272 EXFUN (Fdowncase
, 1);
3274 EXFUN (Fupcase_region
, 2);
3275 EXFUN (Fupcase_initials
, 1);
3276 EXFUN (Fupcase_initials_region
, 2);
3277 extern void syms_of_casefiddle (void);
3278 extern void keys_of_casefiddle (void);
3280 /* Defined in casetab.c */
3282 EXFUN (Fset_case_table
, 1);
3283 EXFUN (Fset_standard_case_table
, 1);
3284 extern void init_casetab_once (void);
3285 extern void syms_of_casetab (void);
3287 /* Defined in keyboard.c */
3289 extern Lisp_Object echo_message_buffer
;
3290 extern struct kboard
*echo_kboard
;
3291 extern void cancel_echoing (void);
3292 extern Lisp_Object Qdisabled
, QCfilter
;
3293 extern Lisp_Object Qup
, Qdown
, Qbottom
;
3294 extern Lisp_Object Qtop
;
3295 extern int input_pending
;
3296 EXFUN (Fdiscard_input
, 0);
3297 EXFUN (Frecursive_edit
, 0);
3298 EXFUN (Ftop_level
, 0) NO_RETURN
;
3299 extern Lisp_Object
menu_bar_items (Lisp_Object
);
3300 extern Lisp_Object
tool_bar_items (Lisp_Object
, int *);
3301 extern void discard_mouse_events (void);
3302 EXFUN (Fevent_convert_list
, 1);
3303 EXFUN (Fread_key_sequence
, 5);
3304 EXFUN (Fset_input_interrupt_mode
, 1);
3305 EXFUN (Fset_input_mode
, 4);
3306 extern Lisp_Object pending_funcalls
;
3307 extern int detect_input_pending (void);
3308 extern int detect_input_pending_ignore_squeezables (void);
3309 extern int detect_input_pending_run_timers (int);
3310 extern void safe_run_hooks (Lisp_Object
);
3311 extern void cmd_error_internal (Lisp_Object
, const char *);
3312 extern Lisp_Object
command_loop_1 (void);
3313 extern Lisp_Object
recursive_edit_1 (void);
3314 extern void record_auto_save (void);
3316 extern void force_auto_save_soon (void);
3318 extern void init_keyboard (void);
3319 extern void syms_of_keyboard (void);
3320 extern void keys_of_keyboard (void);
3322 /* Defined in indent.c */
3323 EXFUN (Fvertical_motion
, 2);
3324 EXFUN (Findent_to
, 2);
3325 EXFUN (Fmove_to_column
, 2);
3326 extern ptrdiff_t current_column (void);
3327 extern void invalidate_current_column (void);
3328 extern int indented_beyond_p (ptrdiff_t, ptrdiff_t, EMACS_INT
);
3329 extern void syms_of_indent (void);
3331 /* Defined in frame.c */
3332 #ifdef HAVE_WINDOW_SYSTEM
3333 #endif /* HAVE_WINDOW_SYSTEM */
3334 extern Lisp_Object Qonly
;
3335 extern Lisp_Object Qvisible
;
3336 extern void store_frame_param (struct frame
*, Lisp_Object
, Lisp_Object
);
3337 extern void store_in_alist (Lisp_Object
*, Lisp_Object
, Lisp_Object
);
3338 extern Lisp_Object
do_switch_frame (Lisp_Object
, int, int, Lisp_Object
);
3340 extern Lisp_Object
get_frame_param (struct frame
*, Lisp_Object
);
3342 extern Lisp_Object
frame_buffer_predicate (Lisp_Object
);
3343 EXFUN (Fselect_frame
, 2);
3344 EXFUN (Fselected_frame
, 0);
3345 EXFUN (Fmake_frame_visible
, 1);
3346 EXFUN (Ficonify_frame
, 1);
3347 EXFUN (Fframe_parameter
, 2);
3348 EXFUN (Fmodify_frame_parameters
, 2);
3349 EXFUN (Fraise_frame
, 1);
3350 EXFUN (Fredirect_frame_focus
, 2);
3351 extern void frames_discard_buffer (Lisp_Object
);
3352 extern void syms_of_frame (void);
3354 /* Defined in emacs.c */
3355 extern char **initial_argv
;
3356 extern int initial_argc
;
3357 #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS)
3358 extern int display_arg
;
3360 extern Lisp_Object
decode_env_path (const char *, const char *);
3361 extern Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
3362 extern Lisp_Object Qfile_name_handler_alist
;
3363 #ifdef FLOAT_CATCH_SIGILL
3364 extern void fatal_error_signal (int);
3366 extern Lisp_Object Qkill_emacs
;
3367 EXFUN (Fkill_emacs
, 1) NO_RETURN
;
3369 void fixup_locale (void);
3370 void synchronize_system_messages_locale (void);
3371 void synchronize_system_time_locale (void);
3373 #define setlocale(category, locale)
3374 #define fixup_locale()
3375 #define synchronize_system_messages_locale()
3376 #define synchronize_system_time_locale()
3378 void shut_down_emacs (int, int, Lisp_Object
);
3379 /* Nonzero means don't do interactive redisplay and don't change tty modes. */
3380 extern int noninteractive
;
3382 /* Nonzero means remove site-lisp directories from load-path. */
3383 extern int no_site_lisp
;
3385 /* Pipe used to send exit notification to the daemon parent at
3387 extern int daemon_pipe
[2];
3388 #define IS_DAEMON (daemon_pipe[1] != 0)
3390 /* Nonzero means don't do use window-system-specific display code. */
3391 extern int inhibit_window_system
;
3392 /* Nonzero means that a filter or a sentinel is running. */
3393 extern int running_asynch_code
;
3395 /* Defined in process.c. */
3396 extern Lisp_Object QCtype
, Qlocal
;
3397 EXFUN (Fget_buffer_process
, 1);
3398 EXFUN (Fprocess_status
, 1);
3399 EXFUN (Fkill_process
, 2);
3400 EXFUN (Fwaiting_for_user_input_p
, 0);
3401 extern Lisp_Object Qprocessp
;
3402 extern void kill_buffer_processes (Lisp_Object
);
3403 extern int wait_reading_process_output (int, int, int, int,
3405 struct Lisp_Process
*,
3407 extern void add_keyboard_wait_descriptor (int);
3408 extern void delete_keyboard_wait_descriptor (int);
3410 extern void add_gpm_wait_descriptor (int);
3411 extern void delete_gpm_wait_descriptor (int);
3413 extern void close_process_descs (void);
3414 extern void init_process (void);
3415 extern void syms_of_process (void);
3416 extern void setup_process_coding_systems (Lisp_Object
);
3418 EXFUN (Fcall_process
, MANY
);
3419 extern int child_setup (int, int, int, char **, int, Lisp_Object
)
3424 extern void init_callproc_1 (void);
3425 extern void init_callproc (void);
3426 extern void set_initial_environment (void);
3427 extern void syms_of_callproc (void);
3429 /* Defined in doc.c */
3430 extern Lisp_Object Qfunction_documentation
;
3431 EXFUN (Fsubstitute_command_keys
, 1);
3432 extern Lisp_Object
read_doc_string (Lisp_Object
);
3433 extern Lisp_Object
get_doc_string (Lisp_Object
, int, int);
3434 extern void syms_of_doc (void);
3435 extern int read_bytecode_char (int);
3437 /* Defined in bytecode.c */
3438 extern Lisp_Object Qbytecode
;
3439 extern void syms_of_bytecode (void);
3440 extern struct byte_stack
*byte_stack_list
;
3442 extern void mark_byte_stack (void);
3444 extern void unmark_byte_stack (void);
3445 extern Lisp_Object
exec_byte_code (Lisp_Object
, Lisp_Object
, Lisp_Object
,
3446 Lisp_Object
, ptrdiff_t, Lisp_Object
*);
3448 /* Defined in macros.c */
3449 extern Lisp_Object Qexecute_kbd_macro
;
3450 EXFUN (Fexecute_kbd_macro
, 3);
3451 EXFUN (Fcancel_kbd_macro_events
, 0);
3452 extern void init_macros (void);
3453 extern void syms_of_macros (void);
3455 /* Defined in undo.c */
3456 extern Lisp_Object Qapply
;
3457 extern Lisp_Object Qinhibit_read_only
;
3458 EXFUN (Fundo_boundary
, 0);
3459 extern void truncate_undo_list (struct buffer
*);
3460 extern void record_marker_adjustment (Lisp_Object
, ptrdiff_t);
3461 extern void record_insert (ptrdiff_t, ptrdiff_t);
3462 extern void record_delete (ptrdiff_t, Lisp_Object
);
3463 extern void record_first_change (void);
3464 extern void record_change (ptrdiff_t, ptrdiff_t);
3465 extern void record_property_change (ptrdiff_t, ptrdiff_t,
3466 Lisp_Object
, Lisp_Object
,
3468 extern void syms_of_undo (void);
3469 /* Defined in textprop.c */
3470 extern Lisp_Object Qfont
, Qmouse_face
;
3471 extern Lisp_Object Qinsert_in_front_hooks
, Qinsert_behind_hooks
;
3472 extern Lisp_Object Qfront_sticky
, Qrear_nonsticky
;
3473 extern Lisp_Object Qminibuffer_prompt
;
3475 EXFUN (Fnext_single_property_change
, 4);
3476 EXFUN (Fnext_single_char_property_change
, 4);
3477 EXFUN (Fprevious_single_property_change
, 4);
3478 EXFUN (Fget_text_property
, 3);
3479 EXFUN (Fput_text_property
, 5);
3480 EXFUN (Fprevious_char_property_change
, 2);
3481 EXFUN (Fnext_char_property_change
, 2);
3482 extern void report_interval_modification (Lisp_Object
, Lisp_Object
);
3484 /* Defined in menu.c */
3485 extern void syms_of_menu (void);
3487 /* Defined in xmenu.c */
3488 EXFUN (Fx_popup_menu
, 2);
3489 EXFUN (Fx_popup_dialog
, 3);
3490 extern void syms_of_xmenu (void);
3492 /* Defined in termchar.h */
3493 struct tty_display_info
;
3495 /* Defined in termhooks.h */
3498 /* Defined in sysdep.c */
3499 #ifndef HAVE_GET_CURRENT_DIR_NAME
3500 extern char *get_current_dir_name (void);
3502 extern void stuff_char (char c
);
3503 extern void init_sigio (int);
3504 extern void sys_subshell (void);
3505 extern void sys_suspend (void);
3506 extern void discard_tty_input (void);
3507 extern void init_sys_modes (struct tty_display_info
*);
3508 extern void reset_sys_modes (struct tty_display_info
*);
3509 extern void init_all_sys_modes (void);
3510 extern void reset_all_sys_modes (void);
3511 extern void wait_for_termination (pid_t
);
3512 extern void interruptible_wait_for_termination (pid_t
);
3513 extern void flush_pending_output (int);
3514 extern void child_setup_tty (int);
3515 extern void setup_pty (int);
3516 extern int set_window_size (int, int, int);
3517 extern EMACS_INT
get_random (void);
3518 extern void seed_random (long);
3519 extern int emacs_open (const char *, int, int);
3520 extern int emacs_close (int);
3521 extern ptrdiff_t emacs_read (int, char *, ptrdiff_t);
3522 extern ptrdiff_t emacs_write (int, const char *, ptrdiff_t);
3523 enum { READLINK_BUFSIZE
= 1024 };
3524 extern char *emacs_readlink (const char *, char [READLINK_BUFSIZE
]);
3526 EXFUN (Funlock_buffer
, 0);
3527 extern void unlock_all_files (void);
3528 extern void lock_file (Lisp_Object
);
3529 extern void unlock_file (Lisp_Object
);
3530 extern void unlock_buffer (struct buffer
*);
3531 extern void syms_of_filelock (void);
3532 extern void init_filelock (void);
3534 /* Defined in sound.c */
3535 extern void syms_of_sound (void);
3536 extern void init_sound (void);
3538 /* Defined in category.c */
3539 extern void init_category_once (void);
3540 extern Lisp_Object
char_category_set (int);
3541 extern void syms_of_category (void);
3543 /* Defined in ccl.c */
3544 extern void syms_of_ccl (void);
3546 /* Defined in dired.c */
3547 extern void syms_of_dired (void);
3548 extern Lisp_Object
directory_files_internal (Lisp_Object
, Lisp_Object
,
3549 Lisp_Object
, Lisp_Object
,
3552 /* Defined in term.c */
3553 extern int *char_ins_del_vector
;
3554 extern void mark_ttys (void);
3555 extern void syms_of_term (void);
3556 extern void fatal (const char *msgid
, ...)
3557 NO_RETURN
ATTRIBUTE_FORMAT_PRINTF (1, 2);
3559 /* Defined in terminal.c */
3560 EXFUN (Fframe_terminal
, 1);
3561 EXFUN (Fdelete_terminal
, 2);
3562 extern void syms_of_terminal (void);
3564 /* Defined in font.c */
3565 extern void syms_of_font (void);
3566 extern void init_font (void);
3568 #ifdef HAVE_WINDOW_SYSTEM
3569 /* Defined in fontset.c */
3570 extern void syms_of_fontset (void);
3572 /* Defined in xfns.c, w32fns.c, or macfns.c */
3573 extern Lisp_Object Qfont_param
;
3574 EXFUN (Fxw_display_color_p
, 1);
3575 EXFUN (Fx_focus_frame
, 1);
3578 /* Defined in xfaces.c */
3579 extern Lisp_Object Qdefault
, Qtool_bar
, Qfringe
;
3580 extern Lisp_Object Qheader_line
, Qscroll_bar
, Qcursor
;
3581 extern Lisp_Object Qmode_line_inactive
;
3582 extern Lisp_Object Qface
;
3583 extern Lisp_Object Qnormal
;
3584 extern Lisp_Object QCfamily
, QCweight
, QCslant
;
3585 extern Lisp_Object QCheight
, QCname
, QCwidth
, QCforeground
, QCbackground
;
3586 extern Lisp_Object Vface_alternative_font_family_alist
;
3587 extern Lisp_Object Vface_alternative_font_registry_alist
;
3588 EXFUN (Fclear_face_cache
, 1);
3589 EXFUN (Fx_load_color_file
, 1);
3590 extern void syms_of_xfaces (void);
3592 #ifdef HAVE_X_WINDOWS
3593 /* Defined in xfns.c */
3594 extern void syms_of_xfns (void);
3596 /* Defined in xsmfns.c */
3597 extern void syms_of_xsmfns (void);
3599 /* Defined in xselect.c */
3600 extern void syms_of_xselect (void);
3602 /* Defined in xterm.c */
3603 extern void syms_of_xterm (void);
3604 #endif /* HAVE_X_WINDOWS */
3606 #ifdef HAVE_WINDOW_SYSTEM
3607 /* Defined in xterm.c, nsterm.m, w32term.c */
3608 extern char *x_get_keysym_name (int);
3609 #endif /* HAVE_WINDOW_SYSTEM */
3612 /* Defined in msdos.c */
3613 EXFUN (Fmsdos_downcase_filename
, 1);
3617 /* Defined in xml.c */
3618 extern void syms_of_xml (void);
3619 extern void xml_cleanup_parser (void);
3623 /* Defined in (x|w32)fns.c, nsfns.m... */
3624 extern int have_menus_p (void);
3628 /* Defined in dbusbind.c */
3629 void syms_of_dbusbind (void);
3633 /* Defined in msdos.c, w32.c */
3634 extern char *emacs_root_dir (void);
3638 /* Defined in ralloc.c */
3639 extern void r_alloc_reset_variable (POINTER_TYPE
**, POINTER_TYPE
**);
3640 extern POINTER_TYPE
*r_alloc (POINTER_TYPE
**, size_t);
3641 extern POINTER_TYPE
*r_re_alloc (POINTER_TYPE
**, size_t);
3642 extern void r_alloc_free (POINTER_TYPE
**ptr
);
3643 extern void r_alloc_inhibit_buffer_relocation (int);
3644 #endif /* REL_ALLOC */
3646 /* Nonzero means Emacs has already been initialized.
3647 Used during startup to detect startup of dumped Emacs. */
3648 extern int initialized
;
3650 extern int immediate_quit
; /* Nonzero means ^G can quit instantly */
3652 extern void *xmalloc (size_t);
3653 extern void *xrealloc (void *, size_t);
3654 extern void xfree (void *);
3655 extern void *xnmalloc (ptrdiff_t, ptrdiff_t);
3656 extern void *xnrealloc (void *, ptrdiff_t, ptrdiff_t);
3657 extern void *xpalloc (void *, ptrdiff_t *, ptrdiff_t, ptrdiff_t, ptrdiff_t);
3659 extern char *xstrdup (const char *);
3661 extern char *egetenv (const char *);
3663 /* Set up the name of the machine we're running on. */
3664 extern void init_system_name (void);
3666 /* Some systems (e.g., NT) use a different path separator than Unix,
3667 in addition to a device separator. Set the path separator
3668 to '/', and don't test for a device separator in IS_ANY_SEP. */
3670 #define DIRECTORY_SEP '/'
3671 #ifndef IS_DIRECTORY_SEP
3672 #define IS_DIRECTORY_SEP(_c_) ((_c_) == DIRECTORY_SEP)
3674 #ifndef IS_DEVICE_SEP
3676 #define IS_DEVICE_SEP(_c_) 0
3678 #define IS_DEVICE_SEP(_c_) ((_c_) == DEVICE_SEP)
3682 #define IS_ANY_SEP(_c_) (IS_DIRECTORY_SEP (_c_))
3685 #define SWITCH_ENUM_CAST(x) (x)
3687 /* Use this to suppress gcc's warnings. */
3690 /* Use CODE only if lint checking is in effect. */
3691 # define IF_LINT(Code) Code
3693 /* Assume that the expression COND is true. This differs in intent
3694 from 'assert', as it is a message from the programmer to the compiler. */
3695 # define lint_assume(cond) ((cond) ? (void) 0 : abort ())
3698 # define IF_LINT(Code) /* empty */
3699 # define lint_assume(cond) ((void) (0 && (cond)))
3702 /* The ubiquitous min and max macros. */
3708 #define min(a, b) ((a) < (b) ? (a) : (b))
3709 #define max(a, b) ((a) > (b) ? (a) : (b))
3711 /* We used to use `abs', but that clashes with system headers on some
3712 platforms, and using a name reserved by Standard C is a bad idea
3715 #define eabs(x) ((x) < 0 ? -(x) : (x))
3718 /* Return a fixnum or float, depending on whether VAL fits in a Lisp
3721 #define make_fixnum_or_float(val) \
3722 (FIXNUM_OVERFLOW_P (val) ? make_float (val) : make_number (val))
3725 /* Checks the `cycle check' variable CHECK to see if it indicates that
3726 EL is part of a cycle; CHECK must be either Qnil or a value returned
3727 by an earlier use of CYCLE_CHECK. SUSPICIOUS is the number of
3728 elements after which a cycle might be suspected; after that many
3729 elements, this macro begins consing in order to keep more precise
3732 Returns nil if a cycle was detected, otherwise a new value for CHECK
3735 CHECK is evaluated multiple times, EL and SUSPICIOUS 0 or 1 times, so
3736 the caller should make sure that's ok. */
3738 #define CYCLE_CHECK(check, el, suspicious) \
3741 : (INTEGERP (check) \
3742 ? (XFASTINT (check) < (suspicious) \
3743 ? make_number (XFASTINT (check) + 1) \
3744 : Fcons (el, Qnil)) \
3745 : (!NILP (Fmemq ((el), (check))) \
3747 : Fcons ((el), (check)))))
3750 /* SAFE_ALLOCA normally allocates memory on the stack, but if size is
3751 larger than MAX_ALLOCA, use xmalloc to avoid overflowing the stack. */
3753 #define MAX_ALLOCA 16*1024
3755 extern Lisp_Object
safe_alloca_unwind (Lisp_Object
);
3757 #define USE_SAFE_ALLOCA \
3758 ptrdiff_t sa_count = SPECPDL_INDEX (); int sa_must_free = 0
3760 /* SAFE_ALLOCA allocates a simple buffer. */
3762 #define SAFE_ALLOCA(buf, type, size) \
3764 if ((size) < MAX_ALLOCA) \
3765 buf = (type) alloca (size); \
3768 buf = (type) xmalloc (size); \
3770 record_unwind_protect (safe_alloca_unwind, \
3771 make_save_value (buf, 0)); \
3775 /* SAFE_NALLOCA sets BUF to a newly allocated array of MULTIPLIER *
3776 NITEMS items, each of the same type as *BUF. MULTIPLIER must
3777 positive. The code is tuned for MULTIPLIER being a constant. */
3779 #define SAFE_NALLOCA(buf, multiplier, nitems) \
3781 if ((nitems) <= MAX_ALLOCA / sizeof *(buf) / (multiplier)) \
3782 (buf) = alloca (sizeof *(buf) * (multiplier) * (nitems)); \
3785 (buf) = xnmalloc (nitems, sizeof *(buf) * (multiplier)); \
3787 record_unwind_protect (safe_alloca_unwind, \
3788 make_save_value (buf, 0)); \
3792 /* SAFE_FREE frees xmalloced memory and enables GC as needed. */
3794 #define SAFE_FREE() \
3796 if (sa_must_free) { \
3798 unbind_to (sa_count, Qnil); \
3803 /* SAFE_ALLOCA_LISP allocates an array of Lisp_Objects. */
3805 #define SAFE_ALLOCA_LISP(buf, nelt) \
3807 if ((nelt) < MAX_ALLOCA / sizeof (Lisp_Object)) \
3808 buf = (Lisp_Object *) alloca ((nelt) * sizeof (Lisp_Object)); \
3809 else if ((nelt) < min (PTRDIFF_MAX, SIZE_MAX) / sizeof (Lisp_Object)) \
3812 buf = (Lisp_Object *) xmalloc ((nelt) * sizeof (Lisp_Object)); \
3813 arg_ = make_save_value (buf, nelt); \
3814 XSAVE_VALUE (arg_)->dogc = 1; \
3816 record_unwind_protect (safe_alloca_unwind, arg_); \
3819 memory_full (SIZE_MAX); \
3823 #include "globals.h"
3825 #endif /* EMACS_LISP_H */