1 /* Fundamental definitions for GNU Emacs Lisp interpreter.
2 Copyright (C) 1985-1987, 1993-1995, 1997-2011
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 /* These are default choices for the types to use. */
46 # if BITS_PER_LONG < BITS_PER_LONG_LONG && defined WIDE_EMACS_INT
47 # define EMACS_INT long long
48 # define BITS_PER_EMACS_INT BITS_PER_LONG_LONG
50 # elif BITS_PER_INT < BITS_PER_LONG
51 # define EMACS_INT long
52 # define BITS_PER_EMACS_INT BITS_PER_LONG
55 # define EMACS_INT int
56 # define BITS_PER_EMACS_INT BITS_PER_INT
61 # define EMACS_UINT unsigned EMACS_INT
64 /* printmax_t and uprintmax_t are types for printing large integers.
65 These are the widest integers that are supported for printing.
66 pMd etc. are conversions for printing them.
67 On C99 hosts, there's no problem, as even the widest integers work.
68 Fall back on EMACS_INT on pre-C99 hosts. */
70 typedef intmax_t printmax_t
;
71 typedef uintmax_t uprintmax_t
;
75 typedef EMACS_INT printmax_t
;
76 typedef EMACS_UINT uprintmax_t
;
81 /* Use pD to format ptrdiff_t values, which suffice for indexes into
82 buffers and strings. Emacs never allocates objects larger than
83 PTRDIFF_MAX bytes, as they cause problems with pointer subtraction.
84 In C99, pD can always be "t"; configure it here for the sake of
85 pre-C99 libraries such as glibc 2.0 and Solaris 8. */
86 #if PTRDIFF_MAX == INT_MAX
88 #elif PTRDIFF_MAX == LONG_MAX
90 #elif PTRDIFF_MAX == LLONG_MAX
96 /* Extra internal type checking? */
98 #ifdef ENABLE_CHECKING
100 extern void die (const char *, const char *, int) NO_RETURN
;
102 /* The suppress_checking variable is initialized to 0 in alloc.c. Set
103 it to 1 using a debugger to temporarily disable aborting on
104 detected internal inconsistencies or error conditions.
106 Testing suppress_checking after the supplied condition ensures that
107 the side effects produced by CHECK will be consistent, independent
108 of whether ENABLE_CHECKING is defined, or whether the checks are
109 suppressed at run time.
111 In some cases, a good compiler may be able to optimize away the
112 CHECK macro altogether, e.g., if XSTRING (x) uses CHECK to test
113 STRINGP (x), but a particular use of XSTRING is invoked only after
114 testing that STRINGP (x) is true, making the test redundant. */
116 extern int suppress_checking EXTERNALLY_VISIBLE
;
118 #define CHECK(check,msg) (((check) || suppress_checking \
120 : die ((msg), __FILE__, __LINE__)), \
124 /* Produce same side effects and result, but don't complain. */
125 #define CHECK(check,msg) ((check),0)
129 /* Define an Emacs version of "assert", since some system ones are
131 #ifndef ENABLE_CHECKING
132 #define eassert(X) ((void) (0 && (X))) /* Check that X compiles. */
133 #else /* ENABLE_CHECKING */
134 #if defined (__GNUC__) && __GNUC__ >= 2 && defined (__STDC__)
135 #define eassert(cond) CHECK(cond,"assertion failed: " #cond)
137 #define eassert(cond) CHECK(cond,"assertion failed")
139 #endif /* ENABLE_CHECKING */
141 /* Use the configure flag --enable-use-lisp-union-type to make
142 Lisp_Object use a union type instead of the default int. The flag
143 causes USE_LISP_UNION_TYPE to be defined. */
145 /***** Select the tagging scheme. *****/
146 /* There are basically two options that control the tagging scheme:
147 - USE_LISP_UNION_TYPE says that Lisp_Object should be a union instead
149 - USE_LSB_TAG means that we can assume the least 3 bits of pointers are
150 always 0, and we can thus use them to hold tag bits, without
151 restricting our addressing space.
153 If USE_LSB_TAG is not set, then we use the top 3 bits for tagging, thus
154 restricting our possible address range. Currently USE_LSB_TAG is not
155 allowed together with a union. This is not due to any fundamental
156 technical (or political ;-) problem: nobody wrote the code to do it yet.
158 USE_LSB_TAG not only requires the least 3 bits of pointers returned by
159 malloc to be 0 but also needs to be able to impose a mult-of-8 alignment
160 on the few static Lisp_Objects used: all the defsubr as well
161 as the two special buffers buffer_defaults and buffer_local_symbols. */
163 /* First, try and define DECL_ALIGN(type,var) which declares a static
164 variable VAR of type TYPE with the added requirement that it be
166 #ifndef NO_DECL_ALIGN
168 # if HAVE_ATTRIBUTE_ALIGNED
169 # define DECL_ALIGN(type, var) \
170 type __attribute__ ((__aligned__ (1 << GCTYPEBITS))) var
172 /* What directives do other compilers use? */
177 /* Let's USE_LSB_TAG on systems where we know malloc returns mult-of-8. */
178 #if (defined GNU_MALLOC || defined DOUG_LEA_MALLOC || defined __GLIBC__ \
179 || defined DARWIN_OS || defined __sun)
180 /* We also need to be able to specify mult-of-8 alignment on static vars. */
181 # if defined DECL_ALIGN
186 /* If we cannot use 8-byte alignment, make DECL_ALIGN a no-op. */
189 # error "USE_LSB_TAG used without defining DECL_ALIGN"
191 # define DECL_ALIGN(type, var) type var
195 /* Define the fundamental Lisp data structures. */
197 /* If USE_2_TAGBITS_FOR_INTS is defined, then Lisp integers use
198 2 tags, to give them one extra bit, thus extending their range from
199 e.g -2^28..2^28-1 to -2^29..2^29-1. */
200 #define USE_2_TAGS_FOR_INTS
202 /* Making it work for the union case is too much trouble. */
203 #ifdef USE_LISP_UNION_TYPE
204 # undef USE_2_TAGS_FOR_INTS
207 /* This is the set of Lisp data types. */
209 #if !defined USE_2_TAGS_FOR_INTS
210 # define LISP_INT_TAG Lisp_Int
211 # define case_Lisp_Int case Lisp_Int
212 # define LISP_STRING_TAG 4
213 # define LISP_INT_TAG_P(x) ((x) == Lisp_Int)
215 # define LISP_INT_TAG Lisp_Int0
216 # define case_Lisp_Int case Lisp_Int0: case Lisp_Int1
218 # define LISP_INT1_TAG 4
219 # define LISP_STRING_TAG 1
220 # define LISP_INT_TAG_P(x) (((x) & 3) == 0)
222 # define LISP_INT1_TAG 1
223 # define LISP_STRING_TAG 4
224 # define LISP_INT_TAG_P(x) (((x) & 6) == 0)
230 /* Integer. XINT (obj) is the integer value. */
231 #ifdef USE_2_TAGS_FOR_INTS
233 Lisp_Int1
= LISP_INT1_TAG
,
238 /* Symbol. XSYMBOL (object) points to a struct Lisp_Symbol. */
241 /* Miscellaneous. XMISC (object) points to a union Lisp_Misc,
242 whose first member indicates the subtype. */
245 /* String. XSTRING (object) points to a struct Lisp_String.
246 The length of the string, and its contents, are stored therein. */
247 Lisp_String
= LISP_STRING_TAG
,
249 /* Vector of Lisp objects, or something resembling it.
250 XVECTOR (object) points to a struct Lisp_Vector, which contains
251 the size and contents. The size field also contains the type
252 information, if it's not a real vector object. */
255 /* Cons. XCONS (object) points to a struct Lisp_Cons. */
261 /* This is the set of data types that share a common structure.
262 The first member of the structure is a type code from this set.
263 The enum values are arbitrary, but we'll use large numbers to make it
264 more likely that we'll spot the error if a random word in memory is
265 mistakenly interpreted as a Lisp_Misc. */
268 Lisp_Misc_Free
= 0x5eab,
271 Lisp_Misc_Save_Value
,
272 /* Currently floats are not a misc type,
273 but let's define this in case we want to change that. */
275 /* This is not a type code. It is for range checking. */
279 /* These are the types of forwarding objects used in the value slot
280 of symbols for special built-in variables whose value is stored in
284 Lisp_Fwd_Int
, /* Fwd to a C `int' variable. */
285 Lisp_Fwd_Bool
, /* Fwd to a C boolean var. */
286 Lisp_Fwd_Obj
, /* Fwd to a C Lisp_Object variable. */
287 Lisp_Fwd_Buffer_Obj
, /* Fwd to a Lisp_Object field of buffers. */
288 Lisp_Fwd_Kboard_Obj
, /* Fwd to a Lisp_Object field of kboards. */
295 /* These values are overridden by the m- file on some machines. */
297 #define VALBITS (BITS_PER_EMACS_INT - GCTYPEBITS)
300 #ifdef USE_LISP_UNION_TYPE
302 #ifndef WORDS_BIGENDIAN
304 /* Definition of Lisp_Object for little-endian machines. */
309 /* Used for comparing two Lisp_Objects;
310 also, positive integers can be accessed fast this way. */
315 /* Use explict signed, the signedness of a bit-field of type
316 int is implementation defined. */
317 signed EMACS_INT val
: VALBITS
;
318 enum Lisp_Type type
: GCTYPEBITS
;
322 EMACS_UINT val
: VALBITS
;
323 enum Lisp_Type type
: GCTYPEBITS
;
328 #else /* If WORDS_BIGENDIAN */
333 /* Used for comparing two Lisp_Objects;
334 also, positive integers can be accessed fast this way. */
339 enum Lisp_Type type
: GCTYPEBITS
;
340 /* Use explict signed, the signedness of a bit-field of type
341 int is implementation defined. */
342 signed EMACS_INT val
: VALBITS
;
346 enum Lisp_Type type
: GCTYPEBITS
;
347 EMACS_UINT val
: VALBITS
;
352 #endif /* WORDS_BIGENDIAN */
355 static inline Lisp_Object
356 LISP_MAKE_RVALUE (Lisp_Object o
)
361 /* This is more portable to pre-C99 non-GCC compilers, but for
362 backwards compatibility GCC still accepts an old GNU extension
363 which caused this to only generate a warning. */
364 #define LISP_MAKE_RVALUE(o) (0 ? (o) : (o))
367 #else /* USE_LISP_UNION_TYPE */
369 /* If union type is not wanted, define Lisp_Object as just a number. */
371 typedef EMACS_INT Lisp_Object
;
372 #define LISP_MAKE_RVALUE(o) (0+(o))
373 #endif /* USE_LISP_UNION_TYPE */
375 /* In the size word of a vector, this bit means the vector has been marked.
376 (Shift -1 left, not 1, to avoid provoking overflow diagnostics.) */
378 #define ARRAY_MARK_FLAG ((EMACS_INT) -1 << (BITS_PER_EMACS_INT - 1))
380 /* In the size word of a struct Lisp_Vector, this bit means it's really
381 some other vector-like object. */
382 #define PSEUDOVECTOR_FLAG ((EMACS_INT) 1 << (BITS_PER_EMACS_INT - 2))
384 /* In a pseudovector, the size field actually contains a word with one
385 PSEUDOVECTOR_FLAG bit set, and exactly one of the following bits to
386 indicate the actual type.
387 We use a bitset, even tho only one of the bits can be set at any
388 particular time just so as to be able to use micro-optimizations such as
389 testing membership of a particular subset of pseudovectors in Fequal.
390 It is not crucial, but there are plenty of bits here, so why not do it? */
393 PVEC_NORMAL_VECTOR
= 0,
394 PVEC_PROCESS
= 0x200,
396 PVEC_COMPILED
= 0x800,
397 PVEC_WINDOW
= 0x1000,
398 PVEC_WINDOW_CONFIGURATION
= 0x2000,
400 PVEC_CHAR_TABLE
= 0x8000,
401 PVEC_BOOL_VECTOR
= 0x10000,
402 PVEC_BUFFER
= 0x20000,
403 PVEC_HASH_TABLE
= 0x40000,
404 PVEC_TERMINAL
= 0x80000,
405 PVEC_SUB_CHAR_TABLE
= 0x100000,
406 PVEC_FONT
= 0x200000,
407 PVEC_OTHER
= 0x400000,
408 PVEC_TYPE_MASK
= 0x7ffe00
410 #if 0 /* This is used to make the value of PSEUDOVECTOR_FLAG available to
411 GDB. It doesn't work on OS Alpha. Moved to a variable in
413 PVEC_FLAG
= PSEUDOVECTOR_FLAG
417 /* For convenience, we also store the number of elements in these bits.
418 Note that this size is not necessarily the memory-footprint size, but
419 only the number of Lisp_Object fields (that need to be traced by the GC).
420 The distinction is used e.g. by Lisp_Process which places extra
421 non-Lisp_Object fields at the end of the structure. */
422 #define PSEUDOVECTOR_SIZE_MASK 0x1ff
424 /* Number of bits to put in each character in the internal representation
425 of bool vectors. This should not vary across implementations. */
426 #define BOOL_VECTOR_BITS_PER_CHAR 8
428 /* These macros extract various sorts of values from a Lisp_Object.
429 For example, if tem is a Lisp_Object whose type is Lisp_Cons,
430 XCONS (tem) is the struct Lisp_Cons * pointing to the memory for that cons. */
432 #ifndef USE_LISP_UNION_TYPE
434 /* Return a perfect hash of the Lisp_Object representation. */
439 #define TYPEMASK ((((EMACS_INT) 1) << GCTYPEBITS) - 1)
440 #define XTYPE(a) ((enum Lisp_Type) ((a) & TYPEMASK))
441 #ifdef USE_2_TAGS_FOR_INTS
442 # define XINT(a) (((EMACS_INT) (a)) >> (GCTYPEBITS - 1))
443 # define XUINT(a) (((EMACS_UINT) (a)) >> (GCTYPEBITS - 1))
444 # define make_number(N) (((EMACS_INT) (N)) << (GCTYPEBITS - 1))
446 # define XINT(a) (((EMACS_INT) (a)) >> GCTYPEBITS)
447 # define XUINT(a) (((EMACS_UINT) (a)) >> GCTYPEBITS)
448 # define make_number(N) (((EMACS_INT) (N)) << GCTYPEBITS)
450 #define XSET(var, type, ptr) \
451 (eassert (XTYPE ((intptr_t) (ptr)) == 0), /* Check alignment. */ \
452 (var) = (type) | (intptr_t) (ptr))
454 #define XPNTR(a) ((intptr_t) ((a) & ~TYPEMASK))
456 #else /* not USE_LSB_TAG */
458 #define VALMASK ((((EMACS_INT) 1) << VALBITS) - 1)
460 /* One need to override this if there must be high bits set in data space
461 (doing the result of the below & ((1 << (GCTYPE + 1)) - 1) would work
462 on all machines, but would penalize machines which don't need it)
464 #define XTYPE(a) ((enum Lisp_Type) (((EMACS_UINT) (a)) >> VALBITS))
466 /* For integers known to be positive, XFASTINT provides fast retrieval
467 and XSETFASTINT provides fast storage. This takes advantage of the
468 fact that Lisp_Int is 0. */
469 #define XFASTINT(a) ((a) + 0)
470 #define XSETFASTINT(a, b) ((a) = (b))
472 /* Extract the value of a Lisp_Object as a (un)signed integer. */
474 #ifdef USE_2_TAGS_FOR_INTS
475 # define XINT(a) ((((EMACS_INT) (a)) << (GCTYPEBITS - 1)) >> (GCTYPEBITS - 1))
476 # define XUINT(a) ((EMACS_UINT) ((a) & (1 + (VALMASK << 1))))
477 # define make_number(N) ((((EMACS_INT) (N)) & (1 + (VALMASK << 1))))
479 # define XINT(a) ((((EMACS_INT) (a)) << (BITS_PER_EMACS_INT - VALBITS)) \
480 >> (BITS_PER_EMACS_INT - VALBITS))
481 # define XUINT(a) ((EMACS_UINT) ((a) & VALMASK))
482 # define make_number(N) \
483 ((((EMACS_INT) (N)) & VALMASK) | ((EMACS_INT) Lisp_Int) << VALBITS)
486 #define XSET(var, type, ptr) \
487 ((var) = ((EMACS_INT) ((EMACS_UINT) (type) << VALBITS) \
488 + ((intptr_t) (ptr) & VALMASK)))
491 /* DATA_SEG_BITS forces extra bits to be or'd in with any pointers
492 which were stored in a Lisp_Object */
493 #define XPNTR(a) ((uintptr_t) (((a) & VALMASK)) | DATA_SEG_BITS))
495 #define XPNTR(a) ((uintptr_t) ((a) & VALMASK))
498 #endif /* not USE_LSB_TAG */
500 #else /* USE_LISP_UNION_TYPE */
502 #ifdef USE_2_TAGS_FOR_INTS
503 # error "USE_2_TAGS_FOR_INTS is not supported with USE_LISP_UNION_TYPE"
506 #define XHASH(a) ((a).i)
507 #define XTYPE(a) ((enum Lisp_Type) (a).u.type)
508 #define XINT(a) ((EMACS_INT) (a).s.val)
509 #define XUINT(a) ((EMACS_UINT) (a).u.val)
513 # define XSET(var, vartype, ptr) \
514 (eassert ((((uintptr_t) (ptr)) & ((1 << GCTYPEBITS) - 1)) == 0), \
515 (var).u.val = ((uintptr_t) (ptr)) >> GCTYPEBITS, \
516 (var).u.type = ((char) (vartype)))
518 /* Some versions of gcc seem to consider the bitfield width when issuing
519 the "cast to pointer from integer of different size" warning, so the
520 cast is here to widen the value back to its natural size. */
521 # define XPNTR(v) ((intptr_t) (v).s.val << GCTYPEBITS)
523 #else /* !USE_LSB_TAG */
525 /* For integers known to be positive, XFASTINT provides fast retrieval
526 and XSETFASTINT provides fast storage. This takes advantage of the
527 fact that Lisp_Int is 0. */
528 # define XFASTINT(a) ((a).i + 0)
529 # define XSETFASTINT(a, b) ((a).i = (b))
531 # define XSET(var, vartype, ptr) \
532 (((var).s.val = ((intptr_t) (ptr))), ((var).s.type = ((char) (vartype))))
535 /* DATA_SEG_BITS forces extra bits to be or'd in with any pointers
536 which were stored in a Lisp_Object */
537 #define XPNTR(a) ((intptr_t) (XUINT (a) | DATA_SEG_BITS))
539 #define XPNTR(a) ((intptr_t) XUINT (a))
542 #endif /* !USE_LSB_TAG */
544 #if __GNUC__ >= 2 && defined (__OPTIMIZE__)
545 #define make_number(N) \
546 (__extension__ ({ Lisp_Object _l; _l.s.val = (N); _l.s.type = Lisp_Int; _l; }))
548 extern Lisp_Object
make_number (EMACS_INT
);
551 #endif /* USE_LISP_UNION_TYPE */
553 /* For integers known to be positive, XFASTINT sometimes provides
554 faster retrieval and XSETFASTINT provides faster storage.
555 If not, fallback on the non-accelerated path. */
557 # define XFASTINT(a) (XINT (a))
558 # define XSETFASTINT(a, b) (XSETINT (a, b))
561 #define EQ(x, y) (XHASH (x) == XHASH (y))
563 /* Number of bits in a fixnum, including the sign bit. */
564 #ifdef USE_2_TAGS_FOR_INTS
565 # define FIXNUM_BITS (VALBITS + 1)
567 # define FIXNUM_BITS VALBITS
570 /* Mask indicating the significant bits of a fixnum. */
571 #define INTMASK (((EMACS_INT) 1 << FIXNUM_BITS) - 1)
573 /* Largest and smallest representable fixnum values. These are the C
575 #define MOST_POSITIVE_FIXNUM (INTMASK / 2)
576 #define MOST_NEGATIVE_FIXNUM (-1 - MOST_POSITIVE_FIXNUM)
578 /* Value is non-zero if I doesn't fit into a Lisp fixnum. It is
579 written this way so that it also works if I is of unsigned
580 type or if I is a NaN. */
582 #define FIXNUM_OVERFLOW_P(i) \
583 (! ((0 <= (i) || MOST_NEGATIVE_FIXNUM <= (i)) && (i) <= MOST_POSITIVE_FIXNUM))
585 /* Extract a value or address from a Lisp_Object. */
587 #define XCONS(a) (eassert (CONSP(a)),(struct Lisp_Cons *) XPNTR(a))
588 #define XVECTOR(a) (eassert (VECTORLIKEP(a)),(struct Lisp_Vector *) XPNTR(a))
589 #define XSTRING(a) (eassert (STRINGP(a)),(struct Lisp_String *) XPNTR(a))
590 #define XSYMBOL(a) (eassert (SYMBOLP(a)),(struct Lisp_Symbol *) XPNTR(a))
591 #define XFLOAT(a) (eassert (FLOATP(a)),(struct Lisp_Float *) XPNTR(a))
595 #define XMISC(a) ((union Lisp_Misc *) XPNTR(a))
596 #define XMISCANY(a) (eassert (MISCP (a)), &(XMISC(a)->u_any))
597 #define XMISCTYPE(a) (XMISCANY (a)->type)
598 #define XMARKER(a) (eassert (MARKERP (a)), &(XMISC(a)->u_marker))
599 #define XOVERLAY(a) (eassert (OVERLAYP (a)), &(XMISC(a)->u_overlay))
600 #define XSAVE_VALUE(a) (eassert (SAVE_VALUEP (a)), &(XMISC(a)->u_save_value))
602 /* Forwarding object types. */
604 #define XFWDTYPE(a) (a->u_intfwd.type)
605 #define XINTFWD(a) (eassert (INTFWDP (a)), &((a)->u_intfwd))
606 #define XBOOLFWD(a) (eassert (BOOLFWDP (a)), &((a)->u_boolfwd))
607 #define XOBJFWD(a) (eassert (OBJFWDP (a)), &((a)->u_objfwd))
608 #define XBUFFER_OBJFWD(a) \
609 (eassert (BUFFER_OBJFWDP (a)), &((a)->u_buffer_objfwd))
610 #define XKBOARD_OBJFWD(a) \
611 (eassert (KBOARD_OBJFWDP (a)), &((a)->u_kboard_objfwd))
613 /* Pseudovector types. */
615 #define XPROCESS(a) (eassert (PROCESSP(a)),(struct Lisp_Process *) XPNTR(a))
616 #define XWINDOW(a) (eassert (WINDOWP(a)),(struct window *) XPNTR(a))
617 #define XTERMINAL(a) (eassert (TERMINALP(a)),(struct terminal *) XPNTR(a))
618 #define XSUBR(a) (eassert (SUBRP(a)),(struct Lisp_Subr *) XPNTR(a))
619 #define XBUFFER(a) (eassert (BUFFERP(a)),(struct buffer *) XPNTR(a))
620 #define XCHAR_TABLE(a) (eassert (CHAR_TABLE_P (a)), (struct Lisp_Char_Table *) XPNTR(a))
621 #define XSUB_CHAR_TABLE(a) (eassert (SUB_CHAR_TABLE_P (a)), (struct Lisp_Sub_Char_Table *) XPNTR(a))
622 #define XBOOL_VECTOR(a) (eassert (BOOL_VECTOR_P (a)), (struct Lisp_Bool_Vector *) XPNTR(a))
624 /* Construct a Lisp_Object from a value or address. */
626 #define XSETINT(a, b) (a) = make_number (b)
627 #define XSETCONS(a, b) XSET (a, Lisp_Cons, b)
628 #define XSETVECTOR(a, b) XSET (a, Lisp_Vectorlike, b)
629 #define XSETSTRING(a, b) XSET (a, Lisp_String, b)
630 #define XSETSYMBOL(a, b) XSET (a, Lisp_Symbol, b)
631 #define XSETFLOAT(a, b) XSET (a, Lisp_Float, b)
635 #define XSETMISC(a, b) XSET (a, Lisp_Misc, b)
636 #define XSETMARKER(a, b) (XSETMISC (a, b), XMISCTYPE (a) = Lisp_Misc_Marker)
638 /* Pseudovector types. */
640 #define XSETPVECTYPE(v, code) XSETTYPED_PVECTYPE(v, header.size, code)
641 #define XSETTYPED_PVECTYPE(v, size_member, code) \
642 ((v)->size_member |= PSEUDOVECTOR_FLAG | (code))
643 #define XSETPVECTYPESIZE(v, code, sizeval) \
644 ((v)->header.size = PSEUDOVECTOR_FLAG | (code) | (sizeval))
646 /* The cast to struct vectorlike_header * avoids aliasing issues. */
647 #define XSETPSEUDOVECTOR(a, b, code) \
648 XSETTYPED_PSEUDOVECTOR(a, b, \
649 ((struct vectorlike_header *) XPNTR (a))->size, \
651 #define XSETTYPED_PSEUDOVECTOR(a, b, size, code) \
652 (XSETVECTOR (a, b), \
653 eassert ((size & (PSEUDOVECTOR_FLAG | PVEC_TYPE_MASK)) \
654 == (PSEUDOVECTOR_FLAG | (code))))
656 #define XSETWINDOW_CONFIGURATION(a, b) \
657 (XSETPSEUDOVECTOR (a, b, PVEC_WINDOW_CONFIGURATION))
658 #define XSETPROCESS(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_PROCESS))
659 #define XSETWINDOW(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_WINDOW))
660 #define XSETTERMINAL(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_TERMINAL))
661 /* XSETSUBR is special since Lisp_Subr lacks struct vectorlike_header. */
662 #define XSETSUBR(a, b) \
663 XSETTYPED_PSEUDOVECTOR (a, b, XSUBR (a)->size, PVEC_SUBR)
664 #define XSETCOMPILED(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_COMPILED))
665 #define XSETBUFFER(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_BUFFER))
666 #define XSETCHAR_TABLE(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_CHAR_TABLE))
667 #define XSETBOOL_VECTOR(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_BOOL_VECTOR))
668 #define XSETSUB_CHAR_TABLE(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_SUB_CHAR_TABLE))
670 /* Convenience macros for dealing with Lisp arrays. */
672 #define AREF(ARRAY, IDX) XVECTOR ((ARRAY))->contents[IDX]
673 #define ASIZE(ARRAY) XVECTOR ((ARRAY))->header.size
674 /* The IDX==IDX tries to detect when the macro argument is side-effecting. */
675 #define ASET(ARRAY, IDX, VAL) \
676 (eassert ((IDX) == (IDX)), \
677 eassert ((IDX) >= 0 && (IDX) < ASIZE (ARRAY)), \
678 AREF ((ARRAY), (IDX)) = (VAL))
680 /* Convenience macros for dealing with Lisp strings. */
682 #define SDATA(string) (XSTRING (string)->data + 0)
683 #define SREF(string, index) (SDATA (string)[index] + 0)
684 #define SSET(string, index, new) (SDATA (string)[index] = (new))
685 #define SCHARS(string) (XSTRING (string)->size + 0)
686 #define SBYTES(string) (STRING_BYTES (XSTRING (string)) + 0)
688 /* Avoid "differ in sign" warnings. */
689 #define SSDATA(x) ((char *) SDATA (x))
691 #define STRING_SET_CHARS(string, newsize) \
692 (XSTRING (string)->size = (newsize))
694 #define STRING_COPYIN(string, index, new, count) \
695 memcpy (SDATA (string) + index, new, count)
699 #define CHECK_TYPE(ok, Qxxxp, x) \
700 do { if (!(ok)) wrong_type_argument (Qxxxp, (x)); } while (0)
704 /* See the macros in intervals.h. */
706 typedef struct interval
*INTERVAL
;
708 /* Complain if object is not string or buffer type */
709 #define CHECK_STRING_OR_BUFFER(x) \
710 CHECK_TYPE (STRINGP (x) || BUFFERP (x), Qbuffer_or_string_p, x)
713 /* In a cons, the markbit of the car is the gc mark bit */
717 /* Please do not use the names of these elements in code other
718 than the core lisp implementation. Use XCAR and XCDR below. */
719 #ifdef HIDE_LISP_IMPLEMENTATION
724 struct Lisp_Cons
*chain
;
731 struct Lisp_Cons
*chain
;
736 /* Take the car or cdr of something known to be a cons cell. */
737 /* The _AS_LVALUE macros shouldn't be used outside of the minimal set
738 of code that has to know what a cons cell looks like. Other code not
739 part of the basic lisp implementation should assume that the car and cdr
740 fields are not accessible as lvalues. (What if we want to switch to
741 a copying collector someday? Cached cons cell field addresses may be
742 invalidated at arbitrary points.) */
743 #ifdef HIDE_LISP_IMPLEMENTATION
744 #define XCAR_AS_LVALUE(c) (XCONS ((c))->car_)
745 #define XCDR_AS_LVALUE(c) (XCONS ((c))->u.cdr_)
747 #define XCAR_AS_LVALUE(c) (XCONS ((c))->car)
748 #define XCDR_AS_LVALUE(c) (XCONS ((c))->u.cdr)
751 /* Use these from normal code. */
752 #define XCAR(c) LISP_MAKE_RVALUE(XCAR_AS_LVALUE(c))
753 #define XCDR(c) LISP_MAKE_RVALUE(XCDR_AS_LVALUE(c))
755 /* Use these to set the fields of a cons cell.
757 Note that both arguments may refer to the same object, so 'n'
758 should not be read after 'c' is first modified. Also, neither
759 argument should be evaluated more than once; side effects are
760 especially common in the second argument. */
761 #define XSETCAR(c,n) (XCAR_AS_LVALUE(c) = (n))
762 #define XSETCDR(c,n) (XCDR_AS_LVALUE(c) = (n))
764 /* Take the car or cdr of something whose type is not known. */
766 (CONSP ((c)) ? XCAR ((c)) \
767 : NILP ((c)) ? Qnil \
768 : wrong_type_argument (Qlistp, (c)))
771 (CONSP ((c)) ? XCDR ((c)) \
772 : NILP ((c)) ? Qnil \
773 : wrong_type_argument (Qlistp, (c)))
775 /* Take the car or cdr of something whose type is not known. */
776 #define CAR_SAFE(c) \
777 (CONSP ((c)) ? XCAR ((c)) : Qnil)
779 #define CDR_SAFE(c) \
780 (CONSP ((c)) ? XCDR ((c)) : Qnil)
782 /* Nonzero if STR is a multibyte string. */
783 #define STRING_MULTIBYTE(STR) \
784 (XSTRING (STR)->size_byte >= 0)
786 /* Return the length in bytes of STR. */
788 #ifdef GC_CHECK_STRING_BYTES
791 extern EMACS_INT
string_bytes (struct Lisp_String
*);
792 #define STRING_BYTES(S) string_bytes ((S))
794 #else /* not GC_CHECK_STRING_BYTES */
796 #define STRING_BYTES(STR) \
797 ((STR)->size_byte < 0 ? (STR)->size : (STR)->size_byte)
799 #endif /* not GC_CHECK_STRING_BYTES */
801 /* An upper bound on the number of bytes in a Lisp string, not
802 counting the terminating null. This a tight enough bound to
803 prevent integer overflow errors that would otherwise occur during
804 string size calculations. A string cannot contain more bytes than
805 a fixnum can represent, nor can it be so long that C pointer
806 arithmetic stops working on the string plus its terminating null.
807 Although the actual size limit (see STRING_BYTES_MAX in alloc.c)
808 may be a bit smaller than STRING_BYTES_BOUND, calculating it here
809 would expose alloc.c internal details that we'd rather keep
810 private. The cast to ptrdiff_t ensures that STRING_BYTES_BOUND is
812 #define STRING_BYTES_BOUND \
813 min (MOST_POSITIVE_FIXNUM, (ptrdiff_t) min (SIZE_MAX, PTRDIFF_MAX) - 1)
815 /* Mark STR as a unibyte string. */
816 #define STRING_SET_UNIBYTE(STR) \
817 do { if (EQ (STR, empty_multibyte_string)) \
818 (STR) = empty_unibyte_string; \
819 else XSTRING (STR)->size_byte = -1; } while (0)
821 /* Mark STR as a multibyte string. Assure that STR contains only
822 ASCII characters in advance. */
823 #define STRING_SET_MULTIBYTE(STR) \
824 do { if (EQ (STR, empty_unibyte_string)) \
825 (STR) = empty_multibyte_string; \
826 else XSTRING (STR)->size_byte = XSTRING (STR)->size; } while (0)
828 /* Get text properties. */
829 #define STRING_INTERVALS(STR) (XSTRING (STR)->intervals + 0)
831 /* Set text properties. */
832 #define STRING_SET_INTERVALS(STR, INT) (XSTRING (STR)->intervals = (INT))
834 /* In a string or vector, the sign bit of the `size' is the gc mark bit */
840 INTERVAL intervals
; /* text properties in this string */
844 /* Header of vector-like objects. This documents the layout constraints on
845 vectors and pseudovectors other than struct Lisp_Subr. It also prevents
846 compilers from being fooled by Emacs's type punning: the XSETPSEUDOVECTOR
847 and PSEUDOVECTORP macros cast their pointers to struct vectorlike_header *,
848 because when two such pointers potentially alias, a compiler won't
849 incorrectly reorder loads and stores to their size fields. See
850 <http://debbugs.gnu.org/cgi/bugreport.cgi?bug=8546>. */
851 struct vectorlike_header
855 /* Pointer to the next vector-like object. It is generally a buffer or a
856 Lisp_Vector alias, so for convenience it is a union instead of a
857 pointer: this way, one can write P->next.vector instead of ((struct
858 Lisp_Vector *) P->next). */
860 struct buffer
*buffer
;
861 struct Lisp_Vector
*vector
;
867 struct vectorlike_header header
;
868 Lisp_Object contents
[1];
871 /* If a struct is made to look like a vector, this macro returns the length
872 of the shortest vector that would hold that struct. */
873 #define VECSIZE(type) ((sizeof (type) \
874 - offsetof (struct Lisp_Vector, contents[0]) \
875 + sizeof(Lisp_Object) - 1) /* round up */ \
876 / sizeof (Lisp_Object))
878 /* Like VECSIZE, but used when the pseudo-vector has non-Lisp_Object fields
879 at the end and we need to compute the number of Lisp_Object fields (the
880 ones that the GC needs to trace). */
881 #define PSEUDOVECSIZE(type, nonlispfield) \
882 ((offsetof(type, nonlispfield) - offsetof(struct Lisp_Vector, contents[0])) \
883 / sizeof (Lisp_Object))
885 /* A char-table is a kind of vectorlike, with contents are like a
886 vector but with a few other slots. For some purposes, it makes
887 sense to handle a char-table with type struct Lisp_Vector. An
888 element of a char table can be any Lisp objects, but if it is a sub
889 char-table, we treat it a table that contains information of a
890 specific range of characters. A sub char-table has the same
891 structure as a vector. A sub char table appears only in an element
892 of a char-table, and there's no way to access it directly from
893 Emacs Lisp program. */
895 /* This is the number of slots that every char table must have. This
896 counts the ordinary slots and the top, defalt, parent, and purpose
898 #define CHAR_TABLE_STANDARD_SLOTS (VECSIZE (struct Lisp_Char_Table) - 1)
900 /* Return the number of "extra" slots in the char table CT. */
902 #define CHAR_TABLE_EXTRA_SLOTS(CT) \
903 (((CT)->header.size & PSEUDOVECTOR_SIZE_MASK) - CHAR_TABLE_STANDARD_SLOTS)
907 #define CHAR_TABLE_REF_ASCII(CT, IDX) \
908 ({struct Lisp_Char_Table *_tbl = NULL; \
911 _tbl = _tbl ? XCHAR_TABLE (_tbl->parent) : XCHAR_TABLE (CT); \
912 _val = (! SUB_CHAR_TABLE_P (_tbl->ascii) ? _tbl->ascii \
913 : XSUB_CHAR_TABLE (_tbl->ascii)->contents[IDX]); \
915 _val = _tbl->defalt; \
916 } while (NILP (_val) && ! NILP (_tbl->parent)); \
919 #else /* not __GNUC__ */
921 #define CHAR_TABLE_REF_ASCII(CT, IDX) \
922 (! NILP (XCHAR_TABLE (CT)->ascii) \
923 ? (! SUB_CHAR_TABLE_P (XCHAR_TABLE (CT)->ascii) \
924 ? XCHAR_TABLE (CT)->ascii \
925 : ! NILP (XSUB_CHAR_TABLE (XCHAR_TABLE (CT)->ascii)->contents[IDX]) \
926 ? XSUB_CHAR_TABLE (XCHAR_TABLE (CT)->ascii)->contents[IDX] \
927 : char_table_ref ((CT), (IDX))) \
928 : char_table_ref ((CT), (IDX)))
930 #endif /* not __GNUC__ */
932 /* Compute A OP B, using the unsigned comparison operator OP. A and B
933 should be integer expressions. This is not the same as
934 mathemeatical comparison; for example, UNSIGNED_CMP (0, <, -1)
935 returns 1. For efficiency, prefer plain unsigned comparison if A
936 and B's sizes both fit (after integer promotion). */
937 #define UNSIGNED_CMP(a, op, b) \
938 (max (sizeof ((a) + 0), sizeof ((b) + 0)) <= sizeof (unsigned) \
939 ? ((a) + (unsigned) 0) op ((b) + (unsigned) 0) \
940 : ((a) + (uintmax_t) 0) op ((b) + (uintmax_t) 0))
942 /* Nonzero iff C is an ASCII character. */
943 #define ASCII_CHAR_P(c) UNSIGNED_CMP (c, <, 0x80)
945 /* Almost equivalent to Faref (CT, IDX) with optimization for ASCII
946 characters. Do not check validity of CT. */
947 #define CHAR_TABLE_REF(CT, IDX) \
948 (ASCII_CHAR_P (IDX) ? CHAR_TABLE_REF_ASCII ((CT), (IDX)) \
949 : char_table_ref ((CT), (IDX)))
951 /* Almost equivalent to Faref (CT, IDX). However, if the result is
952 not a character, return IDX.
954 For these characters, do not check validity of CT
955 and do not follow parent. */
956 #define CHAR_TABLE_TRANSLATE(CT, IDX) \
957 char_table_translate (CT, IDX)
959 /* Equivalent to Faset (CT, IDX, VAL) with optimization for ASCII and
960 8-bit European characters. Do not check validity of CT. */
961 #define CHAR_TABLE_SET(CT, IDX, VAL) \
962 (ASCII_CHAR_P (IDX) && SUB_CHAR_TABLE_P (XCHAR_TABLE (CT)->ascii) \
963 ? XSUB_CHAR_TABLE (XCHAR_TABLE (CT)->ascii)->contents[IDX] = VAL \
964 : char_table_set (CT, IDX, VAL))
966 #define CHARTAB_SIZE_BITS_0 6
967 #define CHARTAB_SIZE_BITS_1 4
968 #define CHARTAB_SIZE_BITS_2 5
969 #define CHARTAB_SIZE_BITS_3 7
971 extern const int chartab_size
[4];
973 struct Lisp_Sub_Char_Table
;
975 struct Lisp_Char_Table
977 /* HEADER.SIZE is the vector's size field, which also holds the
978 pseudovector type information. It holds the size, too.
979 The size counts the defalt, parent, purpose, ascii,
980 contents, and extras slots. */
981 struct vectorlike_header header
;
983 /* This holds a default value,
984 which is used whenever the value for a specific character is nil. */
987 /* This points to another char table, which we inherit from when the
988 value for a specific character is nil. The `defalt' slot takes
989 precedence over this. */
992 /* This is a symbol which says what kind of use this char-table is
996 /* The bottom sub char-table for characters of the range 0..127. It
997 is nil if none of ASCII character has a specific value. */
1000 Lisp_Object contents
[(1 << CHARTAB_SIZE_BITS_0
)];
1002 /* These hold additional data. It is a vector. */
1003 Lisp_Object extras
[1];
1006 struct Lisp_Sub_Char_Table
1008 /* HEADER.SIZE is the vector's size field, which also holds the
1009 pseudovector type information. It holds the size, too. */
1010 struct vectorlike_header header
;
1012 /* Depth of this sub char-table. It should be 1, 2, or 3. A sub
1013 char-table of depth 1 contains 16 elements, and each element
1014 covers 4096 (128*32) characters. A sub char-table of depth 2
1015 contains 32 elements, and each element covers 128 characters. A
1016 sub char-table of depth 3 contains 128 elements, and each element
1017 is for one character. */
1020 /* Minimum character covered by the sub char-table. */
1021 Lisp_Object min_char
;
1023 Lisp_Object contents
[1];
1026 /* A boolvector is a kind of vectorlike, with contents are like a string. */
1027 struct Lisp_Bool_Vector
1029 /* HEADER.SIZE is the vector's size field. It doesn't have the real size,
1030 just the subtype information. */
1031 struct vectorlike_header header
;
1032 /* This is the size in bits. */
1034 /* This contains the actual bits, packed into bytes. */
1035 unsigned char data
[1];
1038 /* This structure describes a built-in function.
1039 It is generated by the DEFUN macro only.
1040 defsubr makes it into a Lisp object.
1042 This type is treated in most respects as a pseudovector,
1043 but since we never dynamically allocate or free them,
1044 we don't need a struct vectorlike_header and its 'next' field. */
1050 Lisp_Object (*a0
) (void);
1051 Lisp_Object (*a1
) (Lisp_Object
);
1052 Lisp_Object (*a2
) (Lisp_Object
, Lisp_Object
);
1053 Lisp_Object (*a3
) (Lisp_Object
, Lisp_Object
, Lisp_Object
);
1054 Lisp_Object (*a4
) (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
1055 Lisp_Object (*a5
) (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
1056 Lisp_Object (*a6
) (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
1057 Lisp_Object (*a7
) (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
1058 Lisp_Object (*a8
) (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
1059 Lisp_Object (*aUNEVALLED
) (Lisp_Object args
);
1060 Lisp_Object (*aMANY
) (ptrdiff_t, Lisp_Object
*);
1062 short min_args
, max_args
;
1063 const char *symbol_name
;
1064 const char *intspec
;
1069 /***********************************************************************
1071 ***********************************************************************/
1073 /* Interned state of a symbol. */
1075 enum symbol_interned
1077 SYMBOL_UNINTERNED
= 0,
1078 SYMBOL_INTERNED
= 1,
1079 SYMBOL_INTERNED_IN_INITIAL_OBARRAY
= 2
1082 enum symbol_redirect
1084 SYMBOL_PLAINVAL
= 4,
1085 SYMBOL_VARALIAS
= 1,
1086 SYMBOL_LOCALIZED
= 2,
1087 SYMBOL_FORWARDED
= 3
1090 /* In a symbol, the markbit of the plist is used as the gc mark bit */
1094 unsigned gcmarkbit
: 1;
1096 /* Indicates where the value can be found:
1097 0 : it's a plain var, the value is in the `value' field.
1098 1 : it's a varalias, the value is really in the `alias' symbol.
1099 2 : it's a localized var, the value is in the `blv' object.
1100 3 : it's a forwarding variable, the value is in `forward'.
1102 enum symbol_redirect redirect
: 3;
1104 /* Non-zero means symbol is constant, i.e. changing its value
1105 should signal an error. If the value is 3, then the var
1106 can be changed, but only by `defconst'. */
1107 unsigned constant
: 2;
1109 /* Interned state of the symbol. This is an enumerator from
1110 enum symbol_interned. */
1111 unsigned interned
: 2;
1113 /* Non-zero means that this variable has been explicitly declared
1114 special (with `defvar' etc), and shouldn't be lexically bound. */
1115 unsigned declared_special
: 1;
1117 /* The symbol's name, as a Lisp string.
1119 The name "xname" is used to intentionally break code referring to
1120 the old field "name" of type pointer to struct Lisp_String. */
1123 /* Value of the symbol or Qunbound if unbound. If this symbol is a
1124 defvaralias, `alias' contains the symbol for which it is an
1125 alias. Use the SYMBOL_VALUE and SET_SYMBOL_VALUE macros to get
1126 and set a symbol's value, to take defvaralias into account. */
1129 struct Lisp_Symbol
*alias
;
1130 struct Lisp_Buffer_Local_Value
*blv
;
1131 union Lisp_Fwd
*fwd
;
1134 /* Function value of the symbol or Qunbound if not fboundp. */
1135 Lisp_Object function
;
1137 /* The symbol's property list. */
1140 /* Next symbol in obarray bucket, if the symbol is interned. */
1141 struct Lisp_Symbol
*next
;
1144 /* Value is name of symbol. */
1146 #define SYMBOL_VAL(sym) \
1147 (eassert ((sym)->redirect == SYMBOL_PLAINVAL), (sym)->val.value)
1148 #define SYMBOL_ALIAS(sym) \
1149 (eassert ((sym)->redirect == SYMBOL_VARALIAS), (sym)->val.alias)
1150 #define SYMBOL_BLV(sym) \
1151 (eassert ((sym)->redirect == SYMBOL_LOCALIZED), (sym)->val.blv)
1152 #define SYMBOL_FWD(sym) \
1153 (eassert ((sym)->redirect == SYMBOL_FORWARDED), (sym)->val.fwd)
1154 #define SET_SYMBOL_VAL(sym, v) \
1155 (eassert ((sym)->redirect == SYMBOL_PLAINVAL), (sym)->val.value = (v))
1156 #define SET_SYMBOL_ALIAS(sym, v) \
1157 (eassert ((sym)->redirect == SYMBOL_VARALIAS), (sym)->val.alias = (v))
1158 #define SET_SYMBOL_BLV(sym, v) \
1159 (eassert ((sym)->redirect == SYMBOL_LOCALIZED), (sym)->val.blv = (v))
1160 #define SET_SYMBOL_FWD(sym, v) \
1161 (eassert ((sym)->redirect == SYMBOL_FORWARDED), (sym)->val.fwd = (v))
1163 #define SYMBOL_NAME(sym) \
1164 LISP_MAKE_RVALUE (XSYMBOL (sym)->xname)
1166 /* Value is non-zero if SYM is an interned symbol. */
1168 #define SYMBOL_INTERNED_P(sym) \
1169 (XSYMBOL (sym)->interned != SYMBOL_UNINTERNED)
1171 /* Value is non-zero if SYM is interned in initial_obarray. */
1173 #define SYMBOL_INTERNED_IN_INITIAL_OBARRAY_P(sym) \
1174 (XSYMBOL (sym)->interned == SYMBOL_INTERNED_IN_INITIAL_OBARRAY)
1176 /* Value is non-zero if symbol is considered a constant, i.e. its
1177 value cannot be changed (there is an exception for keyword symbols,
1178 whose value can be set to the keyword symbol itself). */
1180 #define SYMBOL_CONSTANT_P(sym) XSYMBOL (sym)->constant
1182 #define DEFSYM(sym, name) \
1183 do { (sym) = intern_c_string ((name)); staticpro (&(sym)); } while (0)
1186 /***********************************************************************
1188 ***********************************************************************/
1190 /* The structure of a Lisp hash table. */
1192 struct Lisp_Hash_Table
1194 /* This is for Lisp; the hash table code does not refer to it. */
1195 struct vectorlike_header header
;
1197 /* Function used to compare keys. */
1200 /* Nil if table is non-weak. Otherwise a symbol describing the
1201 weakness of the table. */
1204 /* When the table is resized, and this is an integer, compute the
1205 new size by adding this to the old size. If a float, compute the
1206 new size by multiplying the old size with this factor. */
1207 Lisp_Object rehash_size
;
1209 /* Resize hash table when number of entries/ table size is >= this
1211 Lisp_Object rehash_threshold
;
1213 /* Vector of hash codes.. If hash[I] is nil, this means that that
1214 entry I is unused. */
1217 /* Vector used to chain entries. If entry I is free, next[I] is the
1218 entry number of the next free item. If entry I is non-free,
1219 next[I] is the index of the next entry in the collision chain. */
1222 /* Index of first free entry in free list. */
1223 Lisp_Object next_free
;
1225 /* Bucket vector. A non-nil entry is the index of the first item in
1226 a collision chain. This vector's size can be larger than the
1227 hash table size to reduce collisions. */
1230 /* User-supplied hash function, or nil. */
1231 Lisp_Object user_hash_function
;
1233 /* User-supplied key comparison function, or nil. */
1234 Lisp_Object user_cmp_function
;
1236 /* Only the fields above are traced normally by the GC. The ones below
1237 `count' are special and are either ignored by the GC or traced in
1238 a special way (e.g. because of weakness). */
1240 /* Number of key/value entries in the table. */
1243 /* Vector of keys and values. The key of item I is found at index
1244 2 * I, the value is found at index 2 * I + 1.
1245 This is gc_marked specially if the table is weak. */
1246 Lisp_Object key_and_value
;
1248 /* Next weak hash table if this is a weak hash table. The head
1249 of the list is in weak_hash_tables. */
1250 struct Lisp_Hash_Table
*next_weak
;
1252 /* C function to compare two keys. */
1253 int (*cmpfn
) (struct Lisp_Hash_Table
*,
1254 Lisp_Object
, EMACS_UINT
,
1255 Lisp_Object
, EMACS_UINT
);
1257 /* C function to compute hash code. */
1258 EMACS_UINT (*hashfn
) (struct Lisp_Hash_Table
*, Lisp_Object
);
1262 #define XHASH_TABLE(OBJ) \
1263 ((struct Lisp_Hash_Table *) XPNTR (OBJ))
1265 #define XSET_HASH_TABLE(VAR, PTR) \
1266 (XSETPSEUDOVECTOR (VAR, PTR, PVEC_HASH_TABLE))
1268 #define HASH_TABLE_P(OBJ) PSEUDOVECTORP (OBJ, PVEC_HASH_TABLE)
1270 #define CHECK_HASH_TABLE(x) \
1271 CHECK_TYPE (HASH_TABLE_P (x), Qhash_table_p, x)
1273 /* Value is the key part of entry IDX in hash table H. */
1275 #define HASH_KEY(H, IDX) AREF ((H)->key_and_value, 2 * (IDX))
1277 /* Value is the value part of entry IDX in hash table H. */
1279 #define HASH_VALUE(H, IDX) AREF ((H)->key_and_value, 2 * (IDX) + 1)
1281 /* Value is the index of the next entry following the one at IDX
1284 #define HASH_NEXT(H, IDX) AREF ((H)->next, (IDX))
1286 /* Value is the hash code computed for entry IDX in hash table H. */
1288 #define HASH_HASH(H, IDX) AREF ((H)->hash, (IDX))
1290 /* Value is the index of the element in hash table H that is the
1291 start of the collision list at index IDX in the index vector of H. */
1293 #define HASH_INDEX(H, IDX) AREF ((H)->index, (IDX))
1295 /* Value is the size of hash table H. */
1297 #define HASH_TABLE_SIZE(H) ASIZE ((H)->next)
1299 /* Default size for hash tables if not specified. */
1301 #define DEFAULT_HASH_SIZE 65
1303 /* Default threshold specifying when to resize a hash table. The
1304 value gives the ratio of current entries in the hash table and the
1305 size of the hash table. */
1307 #define DEFAULT_REHASH_THRESHOLD 0.8
1309 /* Default factor by which to increase the size of a hash table. */
1311 #define DEFAULT_REHASH_SIZE 1.5
1314 /* These structures are used for various misc types. */
1316 struct Lisp_Misc_Any
/* Supertype of all Misc types. */
1318 enum Lisp_Misc_Type type
: 16; /* = Lisp_Misc_??? */
1319 unsigned gcmarkbit
: 1;
1321 /* Make it as long as "Lisp_Free without padding". */
1327 enum Lisp_Misc_Type type
: 16; /* = Lisp_Misc_Marker */
1328 unsigned gcmarkbit
: 1;
1330 /* This flag is temporarily used in the functions
1331 decode/encode_coding_object to record that the marker position
1332 must be adjusted after the conversion. */
1333 unsigned int need_adjustment
: 1;
1334 /* 1 means normal insertion at the marker's position
1335 leaves the marker after the inserted text. */
1336 unsigned int insertion_type
: 1;
1337 /* This is the buffer that the marker points into, or 0 if it points nowhere.
1338 Note: a chain of markers can contain markers pointing into different
1339 buffers (the chain is per buffer_text rather than per buffer, so it's
1340 shared between indirect buffers). */
1341 /* This is used for (other than NULL-checking):
1343 - Fset_marker: check eq(oldbuf, newbuf) to avoid unchain+rechain.
1344 - unchain_marker: to find the list from which to unchain.
1345 - Fkill_buffer: to only unchain the markers of current indirect buffer.
1347 struct buffer
*buffer
;
1349 /* The remaining fields are meaningless in a marker that
1350 does not point anywhere. */
1352 /* For markers that point somewhere,
1353 this is used to chain of all the markers in a given buffer. */
1354 /* We could remove it and use an array in buffer_text instead.
1355 That would also allow to preserve it ordered. */
1356 struct Lisp_Marker
*next
;
1357 /* This is the char position where the marker points. */
1359 /* This is the byte position.
1360 It's mostly used as a charpos<->bytepos cache (i.e. it's not directly
1361 used to implement the functionality of markers, but rather to (ab)use
1362 markers as a cache for char<->byte mappings). */
1366 /* Forwarding pointer to an int variable.
1367 This is allowed only in the value cell of a symbol,
1368 and it means that the symbol's value really lives in the
1369 specified int variable. */
1372 enum Lisp_Fwd_Type type
; /* = Lisp_Fwd_Int */
1376 /* Boolean forwarding pointer to an int variable.
1377 This is like Lisp_Intfwd except that the ostensible
1378 "value" of the symbol is t if the int variable is nonzero,
1379 nil if it is zero. */
1382 enum Lisp_Fwd_Type type
; /* = Lisp_Fwd_Bool */
1386 /* Forwarding pointer to a Lisp_Object variable.
1387 This is allowed only in the value cell of a symbol,
1388 and it means that the symbol's value really lives in the
1389 specified variable. */
1392 enum Lisp_Fwd_Type type
; /* = Lisp_Fwd_Obj */
1393 Lisp_Object
*objvar
;
1396 /* Like Lisp_Objfwd except that value lives in a slot in the
1397 current buffer. Value is byte index of slot within buffer. */
1398 struct Lisp_Buffer_Objfwd
1400 enum Lisp_Fwd_Type type
; /* = Lisp_Fwd_Buffer_Obj */
1402 Lisp_Object slottype
; /* Qnil, Lisp_Int, Lisp_Symbol, or Lisp_String. */
1405 /* struct Lisp_Buffer_Local_Value is used in a symbol value cell when
1406 the symbol has buffer-local or frame-local bindings. (Exception:
1407 some buffer-local variables are built-in, with their values stored
1408 in the buffer structure itself. They are handled differently,
1409 using struct Lisp_Buffer_Objfwd.)
1411 The `realvalue' slot holds the variable's current value, or a
1412 forwarding pointer to where that value is kept. This value is the
1413 one that corresponds to the loaded binding. To read or set the
1414 variable, you must first make sure the right binding is loaded;
1415 then you can access the value in (or through) `realvalue'.
1417 `buffer' and `frame' are the buffer and frame for which the loaded
1418 binding was found. If those have changed, to make sure the right
1419 binding is loaded it is necessary to find which binding goes with
1420 the current buffer and selected frame, then load it. To load it,
1421 first unload the previous binding, then copy the value of the new
1422 binding into `realvalue' (or through it). Also update
1423 LOADED-BINDING to point to the newly loaded binding.
1425 `local_if_set' indicates that merely setting the variable creates a
1426 local binding for the current buffer. Otherwise the latter, setting
1427 the variable does not do that; only make-local-variable does that. */
1429 struct Lisp_Buffer_Local_Value
1431 /* 1 means that merely setting the variable creates a local
1432 binding for the current buffer */
1433 unsigned int local_if_set
: 1;
1434 /* 1 means this variable can have frame-local bindings, otherwise, it is
1435 can have buffer-local bindings. The two cannot be combined. */
1436 unsigned int frame_local
: 1;
1437 /* 1 means that the binding now loaded was found.
1438 Presumably equivalent to (defcell!=valcell) */
1439 unsigned int found
: 1;
1440 /* If non-NULL, a forwarding to the C var where it should also be set. */
1441 union Lisp_Fwd
*fwd
; /* Should never be (Buffer|Kboard)_Objfwd. */
1442 /* The buffer or frame for which the loaded binding was found. */
1444 /* A cons cell that holds the default value. It has the form
1445 (SYMBOL . DEFAULT-VALUE). */
1446 Lisp_Object defcell
;
1447 /* The cons cell from `where's parameter alist.
1448 It always has the form (SYMBOL . VALUE)
1449 Note that if `forward' is non-nil, VALUE may be out of date.
1450 Also if the currently loaded binding is the default binding, then
1451 this is `eq'ual to defcell. */
1452 Lisp_Object valcell
;
1455 #define BLV_FOUND(blv) \
1456 (eassert ((blv)->found == !EQ ((blv)->defcell, (blv)->valcell)), (blv)->found)
1457 #define SET_BLV_FOUND(blv, v) \
1458 (eassert ((v) == !EQ ((blv)->defcell, (blv)->valcell)), (blv)->found = (v))
1460 #define BLV_VALUE(blv) (XCDR ((blv)->valcell))
1461 #define SET_BLV_VALUE(blv, v) (XSETCDR ((blv)->valcell, v))
1463 /* START and END are markers in the overlay's buffer, and
1464 PLIST is the overlay's property list. */
1466 /* An overlay's real data content is:
1469 - insertion type of both ends
1470 - start & start_byte
1472 - next (singly linked list of overlays).
1473 - start_next and end_next (singly linked list of markers).
1474 I.e. 9words plus 2 bits, 3words of which are for external linked lists.
1477 enum Lisp_Misc_Type type
: 16; /* = Lisp_Misc_Overlay */
1478 unsigned gcmarkbit
: 1;
1480 struct Lisp_Overlay
*next
;
1481 Lisp_Object start
, end
, plist
;
1484 /* Like Lisp_Objfwd except that value lives in a slot in the
1486 struct Lisp_Kboard_Objfwd
1488 enum Lisp_Fwd_Type type
; /* = Lisp_Fwd_Kboard_Obj */
1492 /* Hold a C pointer for later use.
1493 This type of object is used in the arg to record_unwind_protect. */
1494 struct Lisp_Save_Value
1496 enum Lisp_Misc_Type type
: 16; /* = Lisp_Misc_Save_Value */
1497 unsigned gcmarkbit
: 1;
1499 /* If DOGC is set, POINTER is the address of a memory
1500 area containing INTEGER potential Lisp_Objects. */
1501 unsigned int dogc
: 1;
1507 /* A miscellaneous object, when it's on the free list. */
1510 enum Lisp_Misc_Type type
: 16; /* = Lisp_Misc_Free */
1511 unsigned gcmarkbit
: 1;
1513 union Lisp_Misc
*chain
;
1515 /* Try to make sure that sizeof(Lisp_Misc) preserves TYPEBITS-alignment.
1516 This assumes that Lisp_Marker is the largest of the alternatives and
1517 that Lisp_Misc_Any has the same size as "Lisp_Free w/o padding". */
1518 char padding
[((((sizeof (struct Lisp_Marker
) - 1) >> GCTYPEBITS
) + 1)
1519 << GCTYPEBITS
) - sizeof (struct Lisp_Misc_Any
)];
1523 /* To get the type field of a union Lisp_Misc, use XMISCTYPE.
1524 It uses one of these struct subtypes to get the type field. */
1528 struct Lisp_Misc_Any u_any
; /* Supertype of all Misc types. */
1529 struct Lisp_Free u_free
; /* Includes padding to force alignment. */
1530 struct Lisp_Marker u_marker
; /* 5 */
1531 struct Lisp_Overlay u_overlay
; /* 5 */
1532 struct Lisp_Save_Value u_save_value
; /* 3 */
1537 struct Lisp_Intfwd u_intfwd
; /* 2 */
1538 struct Lisp_Boolfwd u_boolfwd
; /* 2 */
1539 struct Lisp_Objfwd u_objfwd
; /* 2 */
1540 struct Lisp_Buffer_Objfwd u_buffer_objfwd
; /* 2 */
1541 struct Lisp_Kboard_Objfwd u_kboard_objfwd
; /* 2 */
1544 /* Lisp floating point type */
1549 #ifdef HIDE_LISP_IMPLEMENTATION
1554 struct Lisp_Float
*chain
;
1558 #ifdef HIDE_LISP_IMPLEMENTATION
1559 #define XFLOAT_DATA(f) (0 ? XFLOAT (f)->u.data_ : XFLOAT (f)->u.data_)
1561 #define XFLOAT_DATA(f) (0 ? XFLOAT (f)->u.data : XFLOAT (f)->u.data)
1562 /* This should be used only in alloc.c, which always disables
1563 HIDE_LISP_IMPLEMENTATION. */
1564 #define XFLOAT_INIT(f,n) (XFLOAT (f)->u.data = (n))
1567 /* A character, declared with the following typedef, is a member
1568 of some character set associated with the current buffer. */
1569 #ifndef _UCHAR_T /* Protect against something in ctab.h on AIX. */
1571 typedef unsigned char UCHAR
;
1574 /* Meanings of slots in a Lisp_Compiled: */
1576 #define COMPILED_ARGLIST 0
1577 #define COMPILED_BYTECODE 1
1578 #define COMPILED_CONSTANTS 2
1579 #define COMPILED_STACK_DEPTH 3
1580 #define COMPILED_DOC_STRING 4
1581 #define COMPILED_INTERACTIVE 5
1583 /* Flag bits in a character. These also get used in termhooks.h.
1584 Richard Stallman <rms@gnu.ai.mit.edu> thinks that MULE
1585 (MUlti-Lingual Emacs) might need 22 bits for the character value
1586 itself, so we probably shouldn't use any bits lower than 0x0400000. */
1587 #define CHAR_ALT (0x0400000)
1588 #define CHAR_SUPER (0x0800000)
1589 #define CHAR_HYPER (0x1000000)
1590 #define CHAR_SHIFT (0x2000000)
1591 #define CHAR_CTL (0x4000000)
1592 #define CHAR_META (0x8000000)
1594 #define CHAR_MODIFIER_MASK \
1595 (CHAR_ALT | CHAR_SUPER | CHAR_HYPER | CHAR_SHIFT | CHAR_CTL | CHAR_META)
1598 /* Actually, the current Emacs uses 22 bits for the character value
1600 #define CHARACTERBITS 22
1602 /* The maximum byte size consumed by push_key_description.
1603 All callers should assure that at least this size of memory is
1604 allocated at the place pointed by the second argument.
1606 There are 6 modifiers, each consumes 2 chars.
1607 The octal form of a character code consumes
1608 (1 + CHARACTERBITS / 3 + 1) chars (including backslash at the head).
1609 We need one more byte for string terminator `\0'. */
1610 #define KEY_DESCRIPTION_SIZE ((2 * 6) + 1 + (CHARACTERBITS / 3) + 1 + 1)
1613 /* The glyph datatype, used to represent characters on the display.
1614 It consists of a char code and a face id. */
1621 /* Return a glyph's character code. */
1622 #define GLYPH_CHAR(glyph) ((glyph).ch)
1624 /* Return a glyph's face ID. */
1625 #define GLYPH_FACE(glyph) ((glyph).face_id)
1627 #define SET_GLYPH_CHAR(glyph, char) ((glyph).ch = (char))
1628 #define SET_GLYPH_FACE(glyph, face) ((glyph).face_id = (face))
1629 #define SET_GLYPH(glyph, char, face) ((glyph).ch = (char), (glyph).face_id = (face))
1631 /* Return 1 if GLYPH contains valid character code. */
1632 #define GLYPH_CHAR_VALID_P(glyph) CHAR_VALID_P (GLYPH_CHAR (glyph))
1635 /* Glyph Code from a display vector may either be an integer which
1636 encodes a char code in the lower CHARACTERBITS bits and a (very small)
1637 face-id in the upper bits, or it may be a cons (CHAR . FACE-ID). */
1639 #define GLYPH_CODE_CHAR(gc) \
1640 (CONSP (gc) ? XINT (XCAR (gc)) : INTEGERP (gc) ? (XINT (gc) & ((1 << CHARACTERBITS)-1)) : 0)
1642 #define GLYPH_CODE_FACE(gc) \
1643 (CONSP (gc) ? XINT (XCDR (gc)) : INTEGERP (gc) ? (XINT (gc) >> CHARACTERBITS) : DEFAULT_FACE_ID)
1645 /* Return 1 if glyph code from display vector contains valid character code. */
1646 #define GLYPH_CODE_CHAR_VALID_P(gc) CHAR_VALID_P (GLYPH_CODE_CHAR (gc))
1648 #define GLYPH_CODE_P(gc) ((CONSP (gc) && INTEGERP (XCAR (gc)) && INTEGERP (XCDR (gc))) || INTEGERP (gc))
1650 /* Only called when GLYPH_CODE_P (gc) is true. */
1651 #define SET_GLYPH_FROM_GLYPH_CODE(glyph, gc) \
1655 SET_GLYPH (glyph, XINT (XCAR (gc)), XINT (XCDR (gc))); \
1657 SET_GLYPH (glyph, (XINT (gc) & ((1 << CHARACTERBITS)-1)), \
1658 (XINT (gc) >> CHARACTERBITS)); \
1662 /* The ID of the mode line highlighting face. */
1663 #define GLYPH_MODE_LINE_FACE 1
1665 /* Structure to hold mouse highlight data. This is here because other
1666 header files need it for defining struct x_output etc. */
1668 /* These variables describe the range of text currently shown in its
1669 mouse-face, together with the window they apply to. As long as
1670 the mouse stays within this range, we need not redraw anything on
1671 its account. Rows and columns are glyph matrix positions in
1672 MOUSE_FACE_WINDOW. */
1673 int mouse_face_beg_row
, mouse_face_beg_col
;
1674 int mouse_face_beg_x
, mouse_face_beg_y
;
1675 int mouse_face_end_row
, mouse_face_end_col
;
1676 int mouse_face_end_x
, mouse_face_end_y
;
1677 int mouse_face_past_end
;
1678 Lisp_Object mouse_face_window
;
1679 int mouse_face_face_id
;
1680 Lisp_Object mouse_face_overlay
;
1682 /* 1 if a mouse motion event came and we didn't handle it right away because
1683 gc was in progress. */
1684 int mouse_face_deferred_gc
;
1686 /* FRAME and X, Y position of mouse when last checked for
1687 highlighting. X and Y can be negative or out of range for the frame. */
1688 struct frame
*mouse_face_mouse_frame
;
1689 int mouse_face_mouse_x
, mouse_face_mouse_y
;
1691 /* Nonzero means defer mouse-motion highlighting. */
1692 int mouse_face_defer
;
1694 /* Nonzero means that the mouse highlight should not be shown. */
1695 int mouse_face_hidden
;
1697 int mouse_face_image_state
;
1700 /* Data type checking */
1702 #define NILP(x) EQ (x, Qnil)
1704 #define NUMBERP(x) (INTEGERP (x) || FLOATP (x))
1705 #define NATNUMP(x) (INTEGERP (x) && XINT (x) >= 0)
1707 #define INTEGERP(x) (LISP_INT_TAG_P (XTYPE ((x))))
1708 #define SYMBOLP(x) (XTYPE ((x)) == Lisp_Symbol)
1709 #define MISCP(x) (XTYPE ((x)) == Lisp_Misc)
1710 #define VECTORLIKEP(x) (XTYPE ((x)) == Lisp_Vectorlike)
1711 #define STRINGP(x) (XTYPE ((x)) == Lisp_String)
1712 #define CONSP(x) (XTYPE ((x)) == Lisp_Cons)
1714 #define FLOATP(x) (XTYPE ((x)) == Lisp_Float)
1715 #define VECTORP(x) (VECTORLIKEP (x) && !(ASIZE (x) & PSEUDOVECTOR_FLAG))
1716 #define OVERLAYP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Overlay)
1717 #define MARKERP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Marker)
1718 #define SAVE_VALUEP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Save_Value)
1720 #define INTFWDP(x) (XFWDTYPE (x) == Lisp_Fwd_Int)
1721 #define BOOLFWDP(x) (XFWDTYPE (x) == Lisp_Fwd_Bool)
1722 #define OBJFWDP(x) (XFWDTYPE (x) == Lisp_Fwd_Obj)
1723 #define BUFFER_OBJFWDP(x) (XFWDTYPE (x) == Lisp_Fwd_Buffer_Obj)
1724 #define KBOARD_OBJFWDP(x) (XFWDTYPE (x) == Lisp_Fwd_Kboard_Obj)
1726 /* True if object X is a pseudovector whose code is CODE. The cast to struct
1727 vectorlike_header * avoids aliasing issues. */
1728 #define PSEUDOVECTORP(x, code) \
1729 TYPED_PSEUDOVECTORP(x, vectorlike_header, code)
1731 /* True if object X, with internal type struct T *, is a pseudovector whose
1733 #define TYPED_PSEUDOVECTORP(x, t, code) \
1735 && (((((struct t *) XPNTR (x))->size \
1736 & (PSEUDOVECTOR_FLAG | (code)))) \
1737 == (PSEUDOVECTOR_FLAG | (code))))
1739 /* Test for specific pseudovector types. */
1740 #define WINDOW_CONFIGURATIONP(x) PSEUDOVECTORP (x, PVEC_WINDOW_CONFIGURATION)
1741 #define PROCESSP(x) PSEUDOVECTORP (x, PVEC_PROCESS)
1742 #define WINDOWP(x) PSEUDOVECTORP (x, PVEC_WINDOW)
1743 #define TERMINALP(x) PSEUDOVECTORP (x, PVEC_TERMINAL)
1744 /* SUBRP is special since Lisp_Subr lacks struct vectorlike_header. */
1745 #define SUBRP(x) TYPED_PSEUDOVECTORP (x, Lisp_Subr, PVEC_SUBR)
1746 #define COMPILEDP(x) PSEUDOVECTORP (x, PVEC_COMPILED)
1747 #define BUFFERP(x) PSEUDOVECTORP (x, PVEC_BUFFER)
1748 #define CHAR_TABLE_P(x) PSEUDOVECTORP (x, PVEC_CHAR_TABLE)
1749 #define SUB_CHAR_TABLE_P(x) PSEUDOVECTORP (x, PVEC_SUB_CHAR_TABLE)
1750 #define BOOL_VECTOR_P(x) PSEUDOVECTORP (x, PVEC_BOOL_VECTOR)
1751 #define FRAMEP(x) PSEUDOVECTORP (x, PVEC_FRAME)
1753 /* Test for image (image . spec) */
1754 #define IMAGEP(x) (CONSP (x) && EQ (XCAR (x), Qimage))
1759 (VECTORP (x) || STRINGP (x) || CHAR_TABLE_P (x) || BOOL_VECTOR_P (x))
1761 #define CHECK_LIST(x) \
1762 CHECK_TYPE (CONSP (x) || NILP (x), Qlistp, x)
1764 #define CHECK_LIST_CONS(x, y) \
1765 CHECK_TYPE (CONSP (x), Qlistp, y)
1767 #define CHECK_LIST_END(x, y) \
1768 CHECK_TYPE (NILP (x), Qlistp, y)
1770 #define CHECK_STRING(x) \
1771 CHECK_TYPE (STRINGP (x), Qstringp, x)
1773 #define CHECK_STRING_CAR(x) \
1774 CHECK_TYPE (STRINGP (XCAR (x)), Qstringp, XCAR (x))
1776 #define CHECK_CONS(x) \
1777 CHECK_TYPE (CONSP (x), Qconsp, x)
1779 #define CHECK_SYMBOL(x) \
1780 CHECK_TYPE (SYMBOLP (x), Qsymbolp, x)
1782 #define CHECK_CHAR_TABLE(x) \
1783 CHECK_TYPE (CHAR_TABLE_P (x), Qchar_table_p, x)
1785 #define CHECK_VECTOR(x) \
1786 CHECK_TYPE (VECTORP (x), Qvectorp, x)
1788 #define CHECK_VECTOR_OR_STRING(x) \
1789 CHECK_TYPE (VECTORP (x) || STRINGP (x), Qarrayp, x)
1791 #define CHECK_ARRAY(x, Qxxxp) \
1792 CHECK_TYPE (ARRAYP (x), Qxxxp, x)
1794 #define CHECK_VECTOR_OR_CHAR_TABLE(x) \
1795 CHECK_TYPE (VECTORP (x) || CHAR_TABLE_P (x), Qvector_or_char_table_p, x)
1797 #define CHECK_BUFFER(x) \
1798 CHECK_TYPE (BUFFERP (x), Qbufferp, x)
1800 #define CHECK_WINDOW(x) \
1801 CHECK_TYPE (WINDOWP (x), Qwindowp, x)
1803 #define CHECK_WINDOW_CONFIGURATION(x) \
1804 CHECK_TYPE (WINDOW_CONFIGURATIONP (x), Qwindow_configuration_p, x)
1806 /* This macro rejects windows on the interior of the window tree as
1807 "dead", which is what we want; this is an argument-checking macro, and
1808 the user should never get access to interior windows.
1810 A window of any sort, leaf or interior, is dead if the buffer,
1811 vchild, and hchild members are all nil. */
1813 #define CHECK_LIVE_WINDOW(x) \
1814 CHECK_TYPE (WINDOWP (x) && !NILP (XWINDOW (x)->buffer), Qwindow_live_p, x)
1816 #define CHECK_PROCESS(x) \
1817 CHECK_TYPE (PROCESSP (x), Qprocessp, x)
1819 #define CHECK_SUBR(x) \
1820 CHECK_TYPE (SUBRP (x), Qsubrp, x)
1822 #define CHECK_NUMBER(x) \
1823 CHECK_TYPE (INTEGERP (x), Qintegerp, x)
1825 #define CHECK_NATNUM(x) \
1826 CHECK_TYPE (NATNUMP (x), Qwholenump, x)
1828 #define CHECK_MARKER(x) \
1829 CHECK_TYPE (MARKERP (x), Qmarkerp, x)
1831 #define CHECK_NUMBER_COERCE_MARKER(x) \
1832 do { if (MARKERP ((x))) XSETFASTINT (x, marker_position (x)); \
1833 else CHECK_TYPE (INTEGERP (x), Qinteger_or_marker_p, x); } while (0)
1835 #define XFLOATINT(n) extract_float((n))
1837 #define CHECK_FLOAT(x) \
1838 CHECK_TYPE (FLOATP (x), Qfloatp, x)
1840 #define CHECK_NUMBER_OR_FLOAT(x) \
1841 CHECK_TYPE (FLOATP (x) || INTEGERP (x), Qnumberp, x)
1843 #define CHECK_NUMBER_OR_FLOAT_COERCE_MARKER(x) \
1844 do { if (MARKERP (x)) XSETFASTINT (x, marker_position (x)); \
1845 else CHECK_TYPE (INTEGERP (x) || FLOATP (x), Qnumber_or_marker_p, x); } while (0)
1847 #define CHECK_OVERLAY(x) \
1848 CHECK_TYPE (OVERLAYP (x), Qoverlayp, x)
1850 /* Since we can't assign directly to the CAR or CDR fields of a cons
1851 cell, use these when checking that those fields contain numbers. */
1852 #define CHECK_NUMBER_CAR(x) \
1854 Lisp_Object tmp = XCAR (x); \
1855 CHECK_NUMBER (tmp); \
1856 XSETCAR ((x), tmp); \
1859 #define CHECK_NUMBER_CDR(x) \
1861 Lisp_Object tmp = XCDR (x); \
1862 CHECK_NUMBER (tmp); \
1863 XSETCDR ((x), tmp); \
1866 #define CHECK_NATNUM_CAR(x) \
1868 Lisp_Object tmp = XCAR (x); \
1869 CHECK_NATNUM (tmp); \
1870 XSETCAR ((x), tmp); \
1873 #define CHECK_NATNUM_CDR(x) \
1875 Lisp_Object tmp = XCDR (x); \
1876 CHECK_NATNUM (tmp); \
1877 XSETCDR ((x), tmp); \
1880 /* Cast pointers to this type to compare them. */
1881 #define PNTR_COMPARISON_TYPE uintptr_t
1883 /* Define a built-in function for calling from Lisp.
1884 `lname' should be the name to give the function in Lisp,
1885 as a null-terminated C string.
1886 `fnname' should be the name of the function in C.
1887 By convention, it starts with F.
1888 `sname' should be the name for the C constant structure
1889 that records information on this function for internal use.
1890 By convention, it should be the same as `fnname' but with S instead of F.
1891 It's too bad that C macros can't compute this from `fnname'.
1892 `minargs' should be a number, the minimum number of arguments allowed.
1893 `maxargs' should be a number, the maximum number of arguments allowed,
1894 or else MANY or UNEVALLED.
1895 MANY means pass a vector of evaluated arguments,
1896 in the form of an integer number-of-arguments
1897 followed by the address of a vector of Lisp_Objects
1898 which contains the argument values.
1899 UNEVALLED means pass the list of unevaluated arguments
1900 `intspec' says how interactive arguments are to be fetched.
1901 If the string starts with a `(', `intspec' is evaluated and the resulting
1902 list is the list of arguments.
1903 If it's a string that doesn't start with `(', the value should follow
1904 the one of the doc string for `interactive'.
1905 A null string means call interactively with no arguments.
1906 `doc' is documentation for the user. */
1908 /* This version of DEFUN declares a function prototype with the right
1909 arguments, so we can catch errors with maxargs at compile-time. */
1910 #define DEFUN(lname, fnname, sname, minargs, maxargs, intspec, doc) \
1911 Lisp_Object fnname DEFUN_ARGS_ ## maxargs ; \
1912 static DECL_ALIGN (struct Lisp_Subr, sname) = \
1914 { .a ## maxargs = fnname }, \
1915 minargs, maxargs, lname, intspec, 0}; \
1918 /* Note that the weird token-substitution semantics of ANSI C makes
1919 this work for MANY and UNEVALLED. */
1920 #define DEFUN_ARGS_MANY (ptrdiff_t, Lisp_Object *)
1921 #define DEFUN_ARGS_UNEVALLED (Lisp_Object)
1922 #define DEFUN_ARGS_0 (void)
1923 #define DEFUN_ARGS_1 (Lisp_Object)
1924 #define DEFUN_ARGS_2 (Lisp_Object, Lisp_Object)
1925 #define DEFUN_ARGS_3 (Lisp_Object, Lisp_Object, Lisp_Object)
1926 #define DEFUN_ARGS_4 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object)
1927 #define DEFUN_ARGS_5 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
1929 #define DEFUN_ARGS_6 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
1930 Lisp_Object, Lisp_Object)
1931 #define DEFUN_ARGS_7 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
1932 Lisp_Object, Lisp_Object, Lisp_Object)
1933 #define DEFUN_ARGS_8 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
1934 Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object)
1936 /* Non-zero if OBJ is a Lisp function. */
1937 #define FUNCTIONP(OBJ) \
1938 ((CONSP (OBJ) && EQ (XCAR (OBJ), Qlambda)) \
1939 || (SYMBOLP (OBJ) && !NILP (Ffboundp (OBJ))) \
1940 || COMPILEDP (OBJ) \
1944 is how we define the symbol for function `name' at start-up time. */
1945 extern void defsubr (struct Lisp_Subr
*);
1948 #define UNEVALLED -1
1950 extern void defvar_lisp (struct Lisp_Objfwd
*, const char *, Lisp_Object
*);
1951 extern void defvar_lisp_nopro (struct Lisp_Objfwd
*, const char *, Lisp_Object
*);
1952 extern void defvar_bool (struct Lisp_Boolfwd
*, const char *, int *);
1953 extern void defvar_int (struct Lisp_Intfwd
*, const char *, EMACS_INT
*);
1954 extern void defvar_kboard (struct Lisp_Kboard_Objfwd
*, const char *, int);
1956 /* Macros we use to define forwarded Lisp variables.
1957 These are used in the syms_of_FILENAME functions.
1959 An ordinary (not in buffer_defaults, per-buffer, or per-keyboard)
1960 lisp variable is actually a field in `struct emacs_globals'. The
1961 field's name begins with "f_", which is a convention enforced by
1962 these macros. Each such global has a corresponding #define in
1963 globals.h; the plain name should be used in the code.
1965 E.g., the global "cons_cells_consed" is declared as "int
1966 f_cons_cells_consed" in globals.h, but there is a define:
1968 #define cons_cells_consed globals.f_cons_cells_consed
1970 All C code uses the `cons_cells_consed' name. This is all done
1971 this way to support indirection for multi-threaded Emacs. */
1973 #define DEFVAR_LISP(lname, vname, doc) \
1975 static struct Lisp_Objfwd o_fwd; \
1976 defvar_lisp (&o_fwd, lname, &globals.f_ ## vname); \
1978 #define DEFVAR_LISP_NOPRO(lname, vname, doc) \
1980 static struct Lisp_Objfwd o_fwd; \
1981 defvar_lisp_nopro (&o_fwd, lname, &globals.f_ ## vname); \
1983 #define DEFVAR_BOOL(lname, vname, doc) \
1985 static struct Lisp_Boolfwd b_fwd; \
1986 defvar_bool (&b_fwd, lname, &globals.f_ ## vname); \
1988 #define DEFVAR_INT(lname, vname, doc) \
1990 static struct Lisp_Intfwd i_fwd; \
1991 defvar_int (&i_fwd, lname, &globals.f_ ## vname); \
1994 #define DEFVAR_BUFFER_DEFAULTS(lname, vname, doc) \
1996 static struct Lisp_Objfwd o_fwd; \
1997 defvar_lisp_nopro (&o_fwd, lname, &BVAR (&buffer_defaults, vname)); \
2000 #define DEFVAR_KBOARD(lname, vname, doc) \
2002 static struct Lisp_Kboard_Objfwd ko_fwd; \
2003 defvar_kboard (&ko_fwd, lname, offsetof (KBOARD, vname ## _)); \
2008 /* Structure for recording Lisp call stack for backtrace purposes. */
2010 /* The special binding stack holds the outer values of variables while
2011 they are bound by a function application or a let form, stores the
2012 code to be executed for Lisp unwind-protect forms, and stores the C
2013 functions to be called for record_unwind_protect.
2015 If func is non-zero, undoing this binding applies func to old_value;
2016 This implements record_unwind_protect.
2018 Otherwise, the element is a variable binding.
2020 If the symbol field is a symbol, it is an ordinary variable binding.
2022 Otherwise, it should be a structure (SYMBOL WHERE . CURRENT-BUFFER),
2023 which means having bound a local value while CURRENT-BUFFER was active.
2024 If WHERE is nil this means we saw the default value when binding SYMBOL.
2025 WHERE being a buffer or frame means we saw a buffer-local or frame-local
2026 value. Other values of WHERE mean an internal error. */
2028 typedef Lisp_Object (*specbinding_func
) (Lisp_Object
);
2032 Lisp_Object symbol
, old_value
;
2033 specbinding_func func
;
2034 Lisp_Object unused
; /* Dividing by 16 is faster than by 12 */
2037 extern struct specbinding
*specpdl
;
2038 extern struct specbinding
*specpdl_ptr
;
2039 extern EMACS_INT specpdl_size
;
2041 #define SPECPDL_INDEX() ((int) (specpdl_ptr - specpdl))
2043 /* Everything needed to describe an active condition case. */
2046 /* The handler clauses and variable from the condition-case form. */
2047 /* For a handler set up in Lisp code, this is always a list.
2048 For an internal handler set up by internal_condition_case*,
2049 this can instead be the symbol t or `error'.
2050 t: handle all conditions.
2051 error: handle all conditions, and errors can run the debugger
2052 or display a backtrace. */
2053 Lisp_Object handler
;
2055 /* Fsignal stores here the condition-case clause that applies,
2056 and Fcondition_case thus knows which clause to run. */
2057 Lisp_Object chosen_clause
;
2059 /* Used to effect the longjump out to the handler. */
2060 struct catchtag
*tag
;
2062 /* The next enclosing handler. */
2063 struct handler
*next
;
2066 /* This structure helps implement the `catch' and `throw' control
2067 structure. A struct catchtag contains all the information needed
2068 to restore the state of the interpreter after a non-local jump.
2070 Handlers for error conditions (represented by `struct handler'
2071 structures) just point to a catch tag to do the cleanup required
2074 catchtag structures are chained together in the C calling stack;
2075 the `next' member points to the next outer catchtag.
2077 A call like (throw TAG VAL) searches for a catchtag whose `tag'
2078 member is TAG, and then unbinds to it. The `val' member is used to
2079 hold VAL while the stack is unwound; `val' is returned as the value
2082 All the other members are concerned with restoring the interpreter
2089 struct catchtag
*next
;
2090 struct gcpro
*gcpro
;
2092 struct backtrace
*backlist
;
2093 struct handler
*handlerlist
;
2094 int lisp_eval_depth
;
2096 int poll_suppress_count
;
2097 int interrupt_input_blocked
;
2098 struct byte_stack
*byte_stack
;
2101 extern Lisp_Object memory_signal_data
;
2103 /* An address near the bottom of the stack.
2104 Tells GC how to save a copy of the stack. */
2105 extern char *stack_bottom
;
2107 /* Check quit-flag and quit if it is non-nil.
2108 Typing C-g does not directly cause a quit; it only sets Vquit_flag.
2109 So the program needs to do QUIT at times when it is safe to quit.
2110 Every loop that might run for a long time or might not exit
2111 ought to do QUIT at least once, at a safe place.
2112 Unless that is impossible, of course.
2113 But it is very desirable to avoid creating loops where QUIT is impossible.
2115 Exception: if you set immediate_quit to nonzero,
2116 then the handler that responds to the C-g does the quit itself.
2117 This is a good thing to do around a loop that has no side effects
2118 and (in particular) cannot call arbitrary Lisp code. */
2121 extern void process_pending_signals (void);
2122 extern int pending_signals
;
2123 #define ELSE_PENDING_SIGNALS \
2124 else if (pending_signals) \
2125 process_pending_signals ();
2126 #else /* not SYNC_INPUT */
2127 #define ELSE_PENDING_SIGNALS
2128 #endif /* not SYNC_INPUT */
2132 if (!NILP (Vquit_flag) && NILP (Vinhibit_quit)) \
2134 Lisp_Object flag = Vquit_flag; \
2135 Vquit_flag = Qnil; \
2136 if (EQ (Vthrow_on_input, flag)) \
2137 Fthrow (Vthrow_on_input, Qt); \
2138 Fsignal (Qquit, Qnil); \
2140 ELSE_PENDING_SIGNALS \
2144 /* Nonzero if ought to quit now. */
2146 #define QUITP (!NILP (Vquit_flag) && NILP (Vinhibit_quit))
2148 extern Lisp_Object Vascii_downcase_table
;
2149 extern Lisp_Object Vascii_canon_table
;
2151 /* Number of bytes of structure consed since last GC. */
2153 extern EMACS_INT consing_since_gc
;
2155 extern EMACS_INT gc_relative_threshold
;
2157 extern EMACS_INT memory_full_cons_threshold
;
2159 /* Structure for recording stack slots that need marking. */
2161 /* This is a chain of structures, each of which points at a Lisp_Object
2162 variable whose value should be marked in garbage collection.
2163 Normally every link of the chain is an automatic variable of a function,
2164 and its `val' points to some argument or local variable of the function.
2165 On exit to the function, the chain is set back to the value it had on entry.
2166 This way, no link remains in the chain when the stack frame containing the
2169 Every function that can call Feval must protect in this fashion all
2170 Lisp_Object variables whose contents will be used again. */
2172 extern struct gcpro
*gcprolist
;
2178 /* Address of first protected variable. */
2179 volatile Lisp_Object
*var
;
2181 /* Number of consecutive protected variables. */
2189 /* Values of GC_MARK_STACK during compilation:
2191 0 Use GCPRO as before
2192 1 Do the real thing, make GCPROs and UNGCPRO no-ops.
2193 2 Mark the stack, and check that everything GCPRO'd is
2195 3 Mark using GCPRO's, mark stack last, and count how many
2196 dead objects are kept alive. */
2199 #define GC_USE_GCPROS_AS_BEFORE 0
2200 #define GC_MAKE_GCPROS_NOOPS 1
2201 #define GC_MARK_STACK_CHECK_GCPROS 2
2202 #define GC_USE_GCPROS_CHECK_ZOMBIES 3
2204 #ifndef GC_MARK_STACK
2205 #define GC_MARK_STACK GC_USE_GCPROS_AS_BEFORE
2208 /* Whether we do the stack marking manually. */
2209 #define BYTE_MARK_STACK !(GC_MARK_STACK == GC_MAKE_GCPROS_NOOPS \
2210 || GC_MARK_STACK == GC_MARK_STACK_CHECK_GCPROS)
2213 #define GCPRO1(var) \
2214 GCPRO1_VAR (var, gcpro)
2215 #define GCPRO2(var1, var2) \
2216 GCPRO2_VAR (var1, var2, gcpro)
2217 #define GCPRO3(var1, var2, var3) \
2218 GCPRO3_VAR (var1, var2, var3, gcpro)
2219 #define GCPRO4(var1, var2, var3, var4) \
2220 GCPRO4_VAR (var1, var2, var3, var4, gcpro)
2221 #define GCPRO5(var1, var2, var3, var4, var5) \
2222 GCPRO5_VAR (var1, var2, var3, var4, var5, gcpro)
2223 #define GCPRO6(var1, var2, var3, var4, var5, var6) \
2224 GCPRO6_VAR (var1, var2, var3, var4, var5, var6, gcpro)
2225 #define UNGCPRO UNGCPRO_VAR (gcpro)
2227 #if GC_MARK_STACK == GC_MAKE_GCPROS_NOOPS
2229 /* Do something silly with gcproN vars just so gcc shuts up. */
2230 /* You get warnings from MIPSPro... */
2232 #define GCPRO1_VAR(var, gcpro) ((void) gcpro##1)
2233 #define GCPRO2_VAR(var1, var2, gcpro) \
2234 ((void) gcpro##2, (void) gcpro##1)
2235 #define GCPRO3_VAR(var1, var2, var3, gcpro) \
2236 ((void) gcpro##3, (void) gcpro##2, (void) gcpro##1)
2237 #define GCPRO4_VAR(var1, var2, var3, var4, gcpro) \
2238 ((void) gcpro##4, (void) gcpro##3, (void) gcpro##2, (void) gcpro##1)
2239 #define GCPRO5_VAR(var1, var2, var3, var4, var5, gcpro) \
2240 ((void) gcpro##5, (void) gcpro##4, (void) gcpro##3, (void) gcpro##2, \
2242 #define GCPRO6_VAR(var1, var2, var3, var4, var5, var6, gcpro) \
2243 ((void) gcpro##6, (void) gcpro##5, (void) gcpro##4, (void) gcpro##3, \
2244 (void) gcpro##2, (void) gcpro##1)
2245 #define UNGCPRO_VAR(gcpro) ((void) 0)
2247 #else /* GC_MARK_STACK != GC_MAKE_GCPROS_NOOPS */
2251 #define GCPRO1_VAR(var, gcpro) \
2252 {gcpro##1.next = gcprolist; gcpro##1.var = &var; gcpro##1.nvars = 1; \
2253 gcprolist = &gcpro##1; }
2255 #define GCPRO2_VAR(var1, var2, gcpro) \
2256 {gcpro##1.next = gcprolist; gcpro##1.var = &var1; gcpro##1.nvars = 1; \
2257 gcpro##2.next = &gcpro##1; gcpro##2.var = &var2; gcpro##2.nvars = 1; \
2258 gcprolist = &gcpro##2; }
2260 #define GCPRO3_VAR(var1, var2, var3, gcpro) \
2261 {gcpro##1.next = gcprolist; gcpro##1.var = &var1; gcpro##1.nvars = 1; \
2262 gcpro##2.next = &gcpro##1; gcpro##2.var = &var2; gcpro##2.nvars = 1; \
2263 gcpro##3.next = &gcpro##2; gcpro##3.var = &var3; gcpro##3.nvars = 1; \
2264 gcprolist = &gcpro##3; }
2266 #define GCPRO4_VAR(var1, var2, var3, var4, gcpro) \
2267 {gcpro##1.next = gcprolist; gcpro##1.var = &var1; gcpro##1.nvars = 1; \
2268 gcpro##2.next = &gcpro##1; gcpro##2.var = &var2; gcpro##2.nvars = 1; \
2269 gcpro##3.next = &gcpro##2; gcpro##3.var = &var3; gcpro##3.nvars = 1; \
2270 gcpro##4.next = &gcpro##3; gcpro##4.var = &var4; gcpro##4.nvars = 1; \
2271 gcprolist = &gcpro##4; }
2273 #define GCPRO5_VAR(var1, var2, var3, var4, var5, gcpro) \
2274 {gcpro##1.next = gcprolist; gcpro##1.var = &var1; gcpro##1.nvars = 1; \
2275 gcpro##2.next = &gcpro##1; gcpro##2.var = &var2; gcpro##2.nvars = 1; \
2276 gcpro##3.next = &gcpro##2; gcpro##3.var = &var3; gcpro##3.nvars = 1; \
2277 gcpro##4.next = &gcpro##3; gcpro##4.var = &var4; gcpro##4.nvars = 1; \
2278 gcpro##5.next = &gcpro##4; gcpro##5.var = &var5; gcpro##5.nvars = 1; \
2279 gcprolist = &gcpro##5; }
2281 #define GCPRO6_VAR(var1, var2, var3, var4, var5, var6, gcpro) \
2282 {gcpro##1.next = gcprolist; gcpro##1.var = &var1; gcpro##1.nvars = 1; \
2283 gcpro##2.next = &gcpro##1; gcpro##2.var = &var2; gcpro##2.nvars = 1; \
2284 gcpro##3.next = &gcpro##2; gcpro##3.var = &var3; gcpro##3.nvars = 1; \
2285 gcpro##4.next = &gcpro##3; gcpro##4.var = &var4; gcpro##4.nvars = 1; \
2286 gcpro##5.next = &gcpro##4; gcpro##5.var = &var5; gcpro##5.nvars = 1; \
2287 gcpro##6.next = &gcpro##5; gcpro##6.var = &var6; gcpro##6.nvars = 1; \
2288 gcprolist = &gcpro##6; }
2290 #define UNGCPRO_VAR(gcpro) (gcprolist = gcpro##1.next)
2294 extern int gcpro_level
;
2296 #define GCPRO1_VAR(var, gcpro) \
2297 {gcpro##1.next = gcprolist; gcpro##1.var = &var; gcpro##1.nvars = 1; \
2298 gcpro##1.level = gcpro_level++; \
2299 gcprolist = &gcpro##1; }
2301 #define GCPRO2_VAR(var1, var2, gcpro) \
2302 {gcpro##1.next = gcprolist; gcpro##1.var = &var1; gcpro##1.nvars = 1; \
2303 gcpro##1.level = gcpro_level; \
2304 gcpro##2.next = &gcpro##1; gcpro##2.var = &var2; gcpro##2.nvars = 1; \
2305 gcpro##2.level = gcpro_level++; \
2306 gcprolist = &gcpro##2; }
2308 #define GCPRO3_VAR(var1, var2, var3, gcpro) \
2309 {gcpro##1.next = gcprolist; gcpro##1.var = &var1; gcpro##1.nvars = 1; \
2310 gcpro##1.level = gcpro_level; \
2311 gcpro##2.next = &gcpro##1; gcpro##2.var = &var2; gcpro##2.nvars = 1; \
2312 gcpro##3.next = &gcpro##2; gcpro##3.var = &var3; gcpro##3.nvars = 1; \
2313 gcpro##3.level = gcpro_level++; \
2314 gcprolist = &gcpro##3; }
2316 #define GCPRO4_VAR(var1, var2, var3, var4, gcpro) \
2317 {gcpro##1.next = gcprolist; gcpro##1.var = &var1; gcpro##1.nvars = 1; \
2318 gcpro##1.level = gcpro_level; \
2319 gcpro##2.next = &gcpro##1; gcpro##2.var = &var2; gcpro##2.nvars = 1; \
2320 gcpro##3.next = &gcpro##2; gcpro##3.var = &var3; gcpro##3.nvars = 1; \
2321 gcpro##4.next = &gcpro##3; gcpro##4.var = &var4; gcpro##4.nvars = 1; \
2322 gcpro##4.level = gcpro_level++; \
2323 gcprolist = &gcpro##4; }
2325 #define GCPRO5_VAR(var1, var2, var3, var4, var5, gcpro) \
2326 {gcpro##1.next = gcprolist; gcpro##1.var = &var1; gcpro##1.nvars = 1; \
2327 gcpro##1.level = gcpro_level; \
2328 gcpro##2.next = &gcpro##1; gcpro##2.var = &var2; gcpro##2.nvars = 1; \
2329 gcpro##3.next = &gcpro##2; gcpro##3.var = &var3; gcpro##3.nvars = 1; \
2330 gcpro##4.next = &gcpro##3; gcpro##4.var = &var4; gcpro##4.nvars = 1; \
2331 gcpro##5.next = &gcpro##4; gcpro##5.var = &var5; gcpro##5.nvars = 1; \
2332 gcpro##5.level = gcpro_level++; \
2333 gcprolist = &gcpro##5; }
2335 #define GCPRO6_VAR(var1, var2, var3, var4, var5, var6, gcpro) \
2336 {gcpro##1.next = gcprolist; gcpro##1.var = &var1; gcpro##1.nvars = 1; \
2337 gcpro##1.level = gcpro_level; \
2338 gcpro##2.next = &gcpro##1; gcpro##2.var = &var2; gcpro##2.nvars = 1; \
2339 gcpro##3.next = &gcpro##2; gcpro##3.var = &var3; gcpro##3.nvars = 1; \
2340 gcpro##4.next = &gcpro##3; gcpro##4.var = &var4; gcpro##4.nvars = 1; \
2341 gcpro##5.next = &gcpro##4; gcpro##5.var = &var5; gcpro##5.nvars = 1; \
2342 gcpro##6.next = &gcpro##5; gcpro##6.var = &var6; gcpro##6.nvars = 1; \
2343 gcpro##6.level = gcpro_level++; \
2344 gcprolist = &gcpro##6; }
2346 #define UNGCPRO_VAR(gcpro) \
2347 ((--gcpro_level != gcpro##1.level) \
2349 : ((gcprolist = gcpro##1.next), 0))
2351 #endif /* DEBUG_GCPRO */
2352 #endif /* GC_MARK_STACK != GC_MAKE_GCPROS_NOOPS */
2355 /* Evaluate expr, UNGCPRO, and then return the value of expr. */
2356 #define RETURN_UNGCPRO(expr) \
2359 Lisp_Object ret_ungc_val; \
2360 ret_ungc_val = (expr); \
2362 return ret_ungc_val; \
2366 /* Call staticpro (&var) to protect static variable `var'. */
2368 void staticpro (Lisp_Object
*);
2370 /* Declare a Lisp-callable function. The MAXARGS parameter has the same
2371 meaning as in the DEFUN macro, and is used to construct a prototype. */
2372 /* We can use the same trick as in the DEFUN macro to generate the
2373 appropriate prototype. */
2374 #define EXFUN(fnname, maxargs) \
2375 extern Lisp_Object fnname DEFUN_ARGS_ ## maxargs
2377 /* Forward declarations for prototypes. */
2381 /* Defined in data.c. */
2382 extern Lisp_Object Qnil
, Qt
, Qquote
, Qlambda
, Qunbound
;
2383 extern Lisp_Object Qerror_conditions
, Qerror_message
, Qtop_level
;
2384 extern Lisp_Object Qerror
, Qquit
, Qargs_out_of_range
;
2385 extern Lisp_Object Qvoid_variable
, Qvoid_function
;
2386 extern Lisp_Object Qinvalid_read_syntax
;
2387 extern Lisp_Object Qinvalid_function
, Qwrong_number_of_arguments
, Qno_catch
;
2388 extern Lisp_Object Qend_of_file
, Qarith_error
, Qmark_inactive
;
2389 extern Lisp_Object Qbeginning_of_buffer
, Qend_of_buffer
, Qbuffer_read_only
;
2390 extern Lisp_Object Qtext_read_only
;
2391 extern Lisp_Object Qinteractive_form
;
2392 extern Lisp_Object Qcircular_list
;
2393 extern Lisp_Object Qintegerp
, Qwholenump
, Qsymbolp
, Qlistp
, Qconsp
;
2394 extern Lisp_Object Qstringp
, Qarrayp
, Qsequencep
, Qbufferp
;
2395 extern Lisp_Object Qchar_or_string_p
, Qmarkerp
, Qinteger_or_marker_p
, Qvectorp
;
2396 extern Lisp_Object Qbuffer_or_string_p
;
2397 extern Lisp_Object Qfboundp
;
2398 extern Lisp_Object Qchar_table_p
, Qvector_or_char_table_p
;
2400 extern Lisp_Object Qcdr
;
2402 extern Lisp_Object Qrange_error
, Qdomain_error
, Qsingularity_error
;
2403 extern Lisp_Object Qoverflow_error
, Qunderflow_error
;
2405 extern Lisp_Object Qfloatp
;
2406 extern Lisp_Object Qnumberp
, Qnumber_or_marker_p
;
2408 extern Lisp_Object Qinteger
;
2410 extern Lisp_Object Qfont_spec
, Qfont_entity
, Qfont_object
;
2412 EXFUN (Finteractive_form
, 1);
2413 EXFUN (Fbyteorder
, 0);
2415 /* Defined in frame.c */
2416 extern Lisp_Object Qframep
;
2418 /* Defined in data.c */
2420 EXFUN (Fcar_safe
, 1);
2422 EXFUN (Fcdr_safe
, 1);
2426 EXFUN (Ffboundp
, 1);
2427 EXFUN (Fsymbol_function
, 1);
2428 EXFUN (Fsymbol_name
, 1);
2429 extern Lisp_Object
indirect_function (Lisp_Object
);
2430 EXFUN (Findirect_function
, 2);
2432 EXFUN (Fsymbol_value
, 1);
2433 extern Lisp_Object
find_symbol_value (Lisp_Object
);
2435 EXFUN (Fdefault_value
, 1);
2436 EXFUN (Fset_default
, 2);
2437 EXFUN (Fdefault_boundp
, 1);
2438 EXFUN (Fmake_local_variable
, 1);
2439 EXFUN (Flocal_variable_p
, 2);
2444 EXFUN (Fstring_to_number
, 2);
2445 EXFUN (Fnumber_to_string
, 1);
2451 EXFUN (Fplus
, MANY
);
2452 EXFUN (Fminus
, MANY
);
2453 EXFUN (Ftimes
, MANY
);
2461 EXFUN (Fmake_variable_buffer_local
, 1);
2463 /* Convert the integer I to an Emacs representation, either the integer
2464 itself, or a cons of two or three integers, or if all else fails a float.
2465 I should not have side effects. */
2466 #define INTEGER_TO_CONS(i) \
2467 (! FIXNUM_OVERFLOW_P (i) \
2469 : ! ((FIXNUM_OVERFLOW_P (INTMAX_MIN >> 16) \
2470 || FIXNUM_OVERFLOW_P (UINTMAX_MAX >> 16)) \
2471 && FIXNUM_OVERFLOW_P ((i) >> 16)) \
2472 ? Fcons (make_number ((i) >> 16), make_number ((i) & 0xffff)) \
2473 : ! ((FIXNUM_OVERFLOW_P (INTMAX_MIN >> 16 >> 24) \
2474 || FIXNUM_OVERFLOW_P (UINTMAX_MAX >> 16 >> 24)) \
2475 && FIXNUM_OVERFLOW_P ((i) >> 16 >> 24)) \
2476 ? Fcons (make_number ((i) >> 16 >> 24), \
2477 Fcons (make_number ((i) >> 16 & 0xffffff), \
2478 make_number ((i) & 0xffff))) \
2481 /* Convert the Emacs representation CONS back to an integer of type
2482 TYPE, storing the result the variable VAR. Signal an error if CONS
2483 is not a valid representation or is out of range for TYPE. */
2484 #define CONS_TO_INTEGER(cons, type, var) \
2485 (TYPE_SIGNED (type) \
2486 ? ((var) = cons_to_signed (cons, TYPE_MINIMUM (type), TYPE_MAXIMUM (type))) \
2487 : ((var) = cons_to_unsigned (cons, TYPE_MAXIMUM (type))))
2488 extern intmax_t cons_to_signed (Lisp_Object
, intmax_t, intmax_t);
2489 extern uintmax_t cons_to_unsigned (Lisp_Object
, uintmax_t);
2491 extern struct Lisp_Symbol
*indirect_variable (struct Lisp_Symbol
*);
2492 extern void args_out_of_range (Lisp_Object
, Lisp_Object
) NO_RETURN
;
2493 extern void args_out_of_range_3 (Lisp_Object
, Lisp_Object
,
2494 Lisp_Object
) NO_RETURN
;
2495 extern Lisp_Object
wrong_type_argument (Lisp_Object
, Lisp_Object
) NO_RETURN
;
2496 extern Lisp_Object
do_symval_forwarding (union Lisp_Fwd
*);
2497 extern void set_internal (Lisp_Object
, Lisp_Object
, Lisp_Object
, int);
2498 extern void syms_of_data (void);
2499 extern void init_data (void);
2500 extern void swap_in_global_binding (struct Lisp_Symbol
*);
2502 /* Defined in cmds.c */
2503 EXFUN (Fend_of_line
, 1);
2504 EXFUN (Fforward_char
, 1);
2505 EXFUN (Fforward_line
, 1);
2506 extern void syms_of_cmds (void);
2507 extern void keys_of_cmds (void);
2509 /* Defined in coding.c */
2510 extern Lisp_Object Qcharset
;
2511 EXFUN (Fcoding_system_p
, 1);
2512 EXFUN (Fcoding_system_base
, 1);
2513 EXFUN (Fcoding_system_eol_type
, 1);
2514 EXFUN (Fcheck_coding_system
, 1);
2515 EXFUN (Fread_coding_system
, 2);
2516 EXFUN (Fread_non_nil_coding_system
, 1);
2517 EXFUN (Ffind_operation_coding_system
, MANY
);
2518 EXFUN (Fdecode_coding_string
, 4);
2519 extern Lisp_Object
detect_coding_system (const unsigned char *, EMACS_INT
,
2520 EMACS_INT
, int, int, Lisp_Object
);
2521 extern void init_coding (void);
2522 extern void init_coding_once (void);
2523 extern void syms_of_coding (void);
2525 /* Defined in character.c */
2526 EXFUN (Fchar_width
, 1);
2527 EXFUN (Fstring
, MANY
);
2528 extern EMACS_INT
chars_in_text (const unsigned char *, EMACS_INT
);
2529 extern EMACS_INT
multibyte_chars_in_text (const unsigned char *, EMACS_INT
);
2530 extern int multibyte_char_to_unibyte (int);
2531 extern int multibyte_char_to_unibyte_safe (int);
2532 extern void init_character_once (void);
2533 extern void syms_of_character (void);
2535 /* Defined in charset.c */
2536 extern void init_charset (void);
2537 extern void init_charset_once (void);
2538 extern void syms_of_charset (void);
2539 /* Structure forward declarations. */
2542 /* Defined in composite.c */
2543 extern void syms_of_composite (void);
2545 /* Defined in syntax.c */
2546 EXFUN (Fforward_word
, 1);
2547 EXFUN (Fskip_chars_forward
, 2);
2548 EXFUN (Fskip_chars_backward
, 2);
2549 extern void init_syntax_once (void);
2550 extern void syms_of_syntax (void);
2552 /* Defined in fns.c */
2553 extern Lisp_Object QCrehash_size
, QCrehash_threshold
;
2554 extern EMACS_INT
next_almost_prime (EMACS_INT
);
2555 extern Lisp_Object
larger_vector (Lisp_Object
, EMACS_INT
, Lisp_Object
);
2556 extern void sweep_weak_hash_tables (void);
2557 extern Lisp_Object Qcursor_in_echo_area
;
2558 extern Lisp_Object Qstring_lessp
;
2559 extern Lisp_Object QCsize
, QCtest
, QCweakness
, Qequal
, Qeq
, Qeql
;
2560 EMACS_UINT
sxhash (Lisp_Object
, int);
2561 Lisp_Object
make_hash_table (Lisp_Object
, Lisp_Object
, Lisp_Object
,
2562 Lisp_Object
, Lisp_Object
, Lisp_Object
,
2564 EMACS_INT
hash_lookup (struct Lisp_Hash_Table
*, Lisp_Object
, EMACS_UINT
*);
2565 EMACS_INT
hash_put (struct Lisp_Hash_Table
*, Lisp_Object
, Lisp_Object
,
2567 void init_weak_hash_tables (void);
2568 extern void init_fns (void);
2569 EXFUN (Fmake_hash_table
, MANY
);
2570 EXFUN (Fgethash
, 3);
2571 EXFUN (Fputhash
, 3);
2572 EXFUN (Fremhash
, 2);
2574 EXFUN (Fidentity
, 1);
2576 EXFUN (Fappend
, MANY
);
2577 EXFUN (Fconcat
, MANY
);
2578 EXFUN (Fvconcat
, MANY
);
2579 EXFUN (Fcopy_sequence
, 1);
2580 EXFUN (Fstring_make_multibyte
, 1);
2581 EXFUN (Fstring_make_unibyte
, 1);
2582 EXFUN (Fstring_as_multibyte
, 1);
2583 EXFUN (Fstring_as_unibyte
, 1);
2584 EXFUN (Fstring_to_multibyte
, 1);
2585 EXFUN (Fsubstring
, 3);
2586 extern Lisp_Object
substring_both (Lisp_Object
, EMACS_INT
, EMACS_INT
,
2587 EMACS_INT
, EMACS_INT
);
2599 EXFUN (Freverse
, 1);
2600 EXFUN (Fnreverse
, 1);
2604 EXFUN (Fnconc
, MANY
);
2606 EXFUN (Fmapconcat
, 3);
2607 extern Lisp_Object
do_yes_or_no_p (Lisp_Object
);
2608 EXFUN (Fprovide
, 2);
2609 extern Lisp_Object
concat2 (Lisp_Object
, Lisp_Object
);
2610 extern Lisp_Object
concat3 (Lisp_Object
, Lisp_Object
, Lisp_Object
);
2611 extern Lisp_Object
nconc2 (Lisp_Object
, Lisp_Object
);
2612 extern Lisp_Object
assq_no_quit (Lisp_Object
, Lisp_Object
);
2613 extern Lisp_Object
assoc_no_quit (Lisp_Object
, Lisp_Object
);
2614 extern void clear_string_char_byte_cache (void);
2615 extern EMACS_INT
string_char_to_byte (Lisp_Object
, EMACS_INT
);
2616 extern EMACS_INT
string_byte_to_char (Lisp_Object
, EMACS_INT
);
2617 extern Lisp_Object
string_to_multibyte (Lisp_Object
);
2618 extern Lisp_Object
string_make_unibyte (Lisp_Object
);
2619 EXFUN (Fcopy_alist
, 1);
2620 EXFUN (Fplist_get
, 2);
2621 EXFUN (Fplist_put
, 3);
2622 EXFUN (Fplist_member
, 2);
2624 EXFUN (Fstring_equal
, 2);
2625 EXFUN (Fcompare_strings
, 7);
2626 EXFUN (Fstring_lessp
, 2);
2627 extern void syms_of_fns (void);
2629 /* Defined in floatfns.c */
2630 extern double extract_float (Lisp_Object
);
2632 EXFUN (Ftruncate
, 2);
2633 extern void init_floatfns (void);
2634 extern void syms_of_floatfns (void);
2635 extern Lisp_Object
fmod_float (Lisp_Object x
, Lisp_Object y
);
2637 /* Defined in fringe.c */
2638 extern void syms_of_fringe (void);
2639 extern void init_fringe (void);
2640 #ifdef HAVE_WINDOW_SYSTEM
2641 extern void mark_fringe_data (void);
2642 extern void init_fringe_once (void);
2643 #endif /* HAVE_WINDOW_SYSTEM */
2645 /* Defined in image.c */
2646 extern Lisp_Object QCascent
, QCmargin
, QCrelief
;
2647 extern Lisp_Object QCconversion
;
2648 extern int x_bitmap_mask (struct frame
*, ptrdiff_t);
2649 extern void syms_of_image (void);
2650 extern void init_image (void);
2652 /* Defined in insdel.c */
2653 extern Lisp_Object Qinhibit_modification_hooks
;
2654 extern void move_gap (EMACS_INT
);
2655 extern void move_gap_both (EMACS_INT
, EMACS_INT
);
2656 extern void buffer_overflow (void) NO_RETURN
;
2657 extern void make_gap (EMACS_INT
);
2658 extern EMACS_INT
copy_text (const unsigned char *, unsigned char *,
2659 EMACS_INT
, int, int);
2660 extern int count_combining_before (const unsigned char *,
2661 EMACS_INT
, EMACS_INT
, EMACS_INT
);
2662 extern int count_combining_after (const unsigned char *,
2663 EMACS_INT
, EMACS_INT
, EMACS_INT
);
2664 extern void insert (const char *, EMACS_INT
);
2665 extern void insert_and_inherit (const char *, EMACS_INT
);
2666 extern void insert_1 (const char *, EMACS_INT
, int, int, int);
2667 extern void insert_1_both (const char *, EMACS_INT
, EMACS_INT
,
2669 extern void insert_from_gap (EMACS_INT
, EMACS_INT
);
2670 extern void insert_from_string (Lisp_Object
, EMACS_INT
, EMACS_INT
,
2671 EMACS_INT
, EMACS_INT
, int);
2672 extern void insert_from_buffer (struct buffer
*, EMACS_INT
, EMACS_INT
, int);
2673 extern void insert_char (int);
2674 extern void insert_string (const char *);
2675 extern void insert_before_markers (const char *, EMACS_INT
);
2676 extern void insert_before_markers_and_inherit (const char *, EMACS_INT
);
2677 extern void insert_from_string_before_markers (Lisp_Object
, EMACS_INT
,
2678 EMACS_INT
, EMACS_INT
,
2680 extern void del_range (EMACS_INT
, EMACS_INT
);
2681 extern Lisp_Object
del_range_1 (EMACS_INT
, EMACS_INT
, int, int);
2682 extern void del_range_byte (EMACS_INT
, EMACS_INT
, int);
2683 extern void del_range_both (EMACS_INT
, EMACS_INT
, EMACS_INT
, EMACS_INT
, int);
2684 extern Lisp_Object
del_range_2 (EMACS_INT
, EMACS_INT
,
2685 EMACS_INT
, EMACS_INT
, int);
2686 extern void modify_region (struct buffer
*, EMACS_INT
, EMACS_INT
, int);
2687 extern void prepare_to_modify_buffer (EMACS_INT
, EMACS_INT
, EMACS_INT
*);
2688 extern void signal_after_change (EMACS_INT
, EMACS_INT
, EMACS_INT
);
2689 extern void adjust_after_insert (EMACS_INT
, EMACS_INT
, EMACS_INT
,
2690 EMACS_INT
, EMACS_INT
);
2691 extern void adjust_markers_for_delete (EMACS_INT
, EMACS_INT
,
2692 EMACS_INT
, EMACS_INT
);
2693 extern void replace_range (EMACS_INT
, EMACS_INT
, Lisp_Object
, int, int, int);
2694 extern void replace_range_2 (EMACS_INT
, EMACS_INT
, EMACS_INT
, EMACS_INT
,
2695 const char *, EMACS_INT
, EMACS_INT
, int);
2696 extern void syms_of_insdel (void);
2698 /* Defined in dispnew.c */
2699 extern Lisp_Object selected_frame
;
2700 extern Lisp_Object Vwindow_system
;
2702 EXFUN (Fredraw_frame
, 1);
2703 EXFUN (Fsleep_for
, 2);
2704 EXFUN (Fredisplay
, 1);
2705 extern Lisp_Object
sit_for (Lisp_Object
, int, int);
2706 extern void init_display (void);
2707 extern void syms_of_display (void);
2709 /* Defined in xdisp.c */
2710 extern Lisp_Object Qinhibit_point_motion_hooks
;
2711 extern Lisp_Object Qinhibit_redisplay
, Qdisplay
;
2712 extern Lisp_Object Qmenu_bar_update_hook
;
2713 extern Lisp_Object Qwindow_scroll_functions
;
2714 extern Lisp_Object Qoverriding_local_map
, Qoverriding_terminal_local_map
;
2715 extern Lisp_Object Qimage
, Qtext
, Qboth
, Qboth_horiz
, Qtext_image_horiz
;
2716 extern Lisp_Object Qspace
, Qcenter
, QCalign_to
;
2717 extern Lisp_Object Qbar
, Qhbar
, Qbox
, Qhollow
;
2718 extern Lisp_Object Qleft_margin
, Qright_margin
;
2719 extern Lisp_Object Qglyphless_char
;
2720 extern Lisp_Object QCdata
, QCfile
;
2721 extern Lisp_Object QCmap
;
2722 extern Lisp_Object Qrisky_local_variable
;
2723 extern struct frame
*last_glyphless_glyph_frame
;
2724 extern unsigned last_glyphless_glyph_face_id
;
2725 extern int last_glyphless_glyph_merged_face_id
;
2726 extern int noninteractive_need_newline
;
2727 extern Lisp_Object echo_area_buffer
[2];
2728 extern void add_to_log (const char *, Lisp_Object
, Lisp_Object
);
2729 extern void check_message_stack (void);
2730 extern void setup_echo_area_for_printing (int);
2731 extern int push_message (void);
2732 extern Lisp_Object
pop_message_unwind (Lisp_Object
);
2733 extern Lisp_Object
restore_message_unwind (Lisp_Object
);
2734 extern void restore_message (void);
2735 extern Lisp_Object
current_message (void);
2736 extern void clear_message (int, int);
2737 extern void message (const char *, ...) ATTRIBUTE_FORMAT_PRINTF (1, 2);
2738 extern void message1 (const char *);
2739 extern void message1_nolog (const char *);
2740 extern void message2 (const char *, EMACS_INT
, int);
2741 extern void message2_nolog (const char *, EMACS_INT
, int);
2742 extern void message3 (Lisp_Object
, EMACS_INT
, int);
2743 extern void message3_nolog (Lisp_Object
, EMACS_INT
, int);
2744 extern void message_dolog (const char *, EMACS_INT
, int, int);
2745 extern void message_with_string (const char *, Lisp_Object
, int);
2746 extern void message_log_maybe_newline (void);
2747 extern void update_echo_area (void);
2748 extern void truncate_echo_area (EMACS_INT
);
2749 extern void redisplay (void);
2750 extern void redisplay_preserve_echo_area (int);
2751 extern void prepare_menu_bars (void);
2753 void set_frame_cursor_types (struct frame
*, Lisp_Object
);
2754 extern void syms_of_xdisp (void);
2755 extern void init_xdisp (void);
2756 extern Lisp_Object
safe_eval (Lisp_Object
);
2757 extern int pos_visible_p (struct window
*, EMACS_INT
, int *,
2758 int *, int *, int *, int *, int *);
2760 /* Defined in xsettings.c */
2761 extern void syms_of_xsettings (void);
2763 /* Defined in vm-limit.c. */
2764 extern void memory_warnings (POINTER_TYPE
*, void (*warnfun
) (const char *));
2766 /* Defined in alloc.c */
2767 extern void check_pure_size (void);
2768 extern void allocate_string_data (struct Lisp_String
*, EMACS_INT
, EMACS_INT
);
2769 extern void reset_malloc_hooks (void);
2770 extern void uninterrupt_malloc (void);
2771 extern void malloc_warning (const char *);
2772 extern void memory_full (size_t) NO_RETURN
;
2773 extern void buffer_memory_full (EMACS_INT
) NO_RETURN
;
2774 extern int survives_gc_p (Lisp_Object
);
2775 extern void mark_object (Lisp_Object
);
2776 #if defined REL_ALLOC && !defined SYSTEM_MALLOC
2777 extern void refill_memory_reserve (void);
2779 extern const char *pending_malloc_warning
;
2780 extern Lisp_Object
*stack_base
;
2782 extern Lisp_Object
list1 (Lisp_Object
);
2783 extern Lisp_Object
list2 (Lisp_Object
, Lisp_Object
);
2784 extern Lisp_Object
list3 (Lisp_Object
, Lisp_Object
, Lisp_Object
);
2785 extern Lisp_Object
list4 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
2786 extern Lisp_Object
list5 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
,
2788 EXFUN (Flist
, MANY
);
2789 EXFUN (Fmake_list
, 2);
2790 extern Lisp_Object
allocate_misc (void);
2791 EXFUN (Fmake_vector
, 2);
2792 EXFUN (Fvector
, MANY
);
2793 EXFUN (Fmake_symbol
, 1);
2794 EXFUN (Fmake_marker
, 0);
2795 extern void string_overflow (void) NO_RETURN
;
2796 EXFUN (Fmake_string
, 2);
2797 extern Lisp_Object
build_string (const char *);
2798 extern Lisp_Object
make_string (const char *, EMACS_INT
);
2799 extern Lisp_Object
make_unibyte_string (const char *, EMACS_INT
);
2800 extern Lisp_Object
make_multibyte_string (const char *, EMACS_INT
, EMACS_INT
);
2801 extern Lisp_Object
make_event_array (int, Lisp_Object
*);
2802 extern Lisp_Object
make_uninit_string (EMACS_INT
);
2803 extern Lisp_Object
make_uninit_multibyte_string (EMACS_INT
, EMACS_INT
);
2804 extern Lisp_Object
make_string_from_bytes (const char *, EMACS_INT
, EMACS_INT
);
2805 extern Lisp_Object
make_specified_string (const char *,
2806 EMACS_INT
, EMACS_INT
, int);
2807 EXFUN (Fpurecopy
, 1);
2808 extern Lisp_Object
make_pure_string (const char *, EMACS_INT
, EMACS_INT
, int);
2809 extern Lisp_Object
make_pure_c_string (const char *data
);
2810 extern Lisp_Object
pure_cons (Lisp_Object
, Lisp_Object
);
2811 extern Lisp_Object
make_pure_vector (EMACS_INT
);
2812 EXFUN (Fgarbage_collect
, 0);
2813 EXFUN (Fmake_byte_code
, MANY
);
2814 EXFUN (Fmake_bool_vector
, 2);
2815 extern Lisp_Object Qchar_table_extra_slots
;
2816 extern struct Lisp_Vector
*allocate_vector (EMACS_INT
);
2817 extern struct Lisp_Vector
*allocate_pseudovector (int memlen
, int lisplen
, EMACS_INT tag
);
2818 #define ALLOCATE_PSEUDOVECTOR(typ,field,tag) \
2820 allocate_pseudovector \
2821 (VECSIZE (typ), PSEUDOVECSIZE (typ, field), tag))
2822 extern struct Lisp_Hash_Table
*allocate_hash_table (void);
2823 extern struct window
*allocate_window (void);
2824 extern struct frame
*allocate_frame (void);
2825 extern struct Lisp_Process
*allocate_process (void);
2826 extern struct terminal
*allocate_terminal (void);
2827 extern int gc_in_progress
;
2828 extern int abort_on_gc
;
2829 extern Lisp_Object
make_float (double);
2830 extern void display_malloc_warning (void);
2831 extern int inhibit_garbage_collection (void);
2832 extern Lisp_Object
make_save_value (void *, ptrdiff_t);
2833 extern void free_marker (Lisp_Object
);
2834 extern void free_cons (struct Lisp_Cons
*);
2835 extern void init_alloc_once (void);
2836 extern void init_alloc (void);
2837 extern void syms_of_alloc (void);
2838 extern struct buffer
* allocate_buffer (void);
2839 extern int valid_lisp_object_p (Lisp_Object
);
2841 /* Defined in chartab.c */
2842 EXFUN (Fmake_char_table
, 2);
2843 EXFUN (Fset_char_table_parent
, 2);
2844 EXFUN (Fchar_table_extra_slot
, 2);
2845 EXFUN (Fset_char_table_extra_slot
, 3);
2846 EXFUN (Fset_char_table_range
, 3);
2847 EXFUN (Foptimize_char_table
, 2);
2848 extern Lisp_Object
copy_char_table (Lisp_Object
);
2849 extern Lisp_Object
char_table_ref (Lisp_Object
, int);
2850 extern Lisp_Object
char_table_ref_and_range (Lisp_Object
, int,
2852 extern Lisp_Object
char_table_set (Lisp_Object
, int, Lisp_Object
);
2853 extern Lisp_Object
char_table_set_range (Lisp_Object
, int, int,
2855 extern int char_table_translate (Lisp_Object
, int);
2856 extern void map_char_table (void (*) (Lisp_Object
, Lisp_Object
,
2858 Lisp_Object
, Lisp_Object
, Lisp_Object
);
2859 extern void map_char_table_for_charset (void (*c_function
) (Lisp_Object
, Lisp_Object
),
2860 Lisp_Object
, Lisp_Object
,
2861 Lisp_Object
, struct charset
*,
2862 unsigned, unsigned);
2863 extern void syms_of_chartab (void);
2865 /* Defined in print.c */
2866 extern Lisp_Object Vprin1_to_string_buffer
;
2867 extern void debug_print (Lisp_Object
) EXTERNALLY_VISIBLE
;
2869 EXFUN (Fprin1_to_string
, 2);
2872 EXFUN (Ferror_message_string
, 1);
2873 extern Lisp_Object Qstandard_output
;
2874 extern Lisp_Object Qexternal_debugging_output
;
2875 extern void temp_output_buffer_setup (const char *);
2876 extern int print_level
;
2877 extern Lisp_Object Qprint_escape_newlines
;
2878 extern void write_string (const char *, int);
2879 extern void print_error_message (Lisp_Object
, Lisp_Object
, const char *,
2881 extern Lisp_Object internal_with_output_to_temp_buffer
2882 (const char *, Lisp_Object (*) (Lisp_Object
), Lisp_Object
);
2883 #define FLOAT_TO_STRING_BUFSIZE 350
2884 extern void float_to_string (char *, double);
2885 extern void syms_of_print (void);
2887 /* Defined in doprnt.c */
2888 extern ptrdiff_t doprnt (char *, ptrdiff_t, const char *, const char *,
2891 /* Defined in lread.c. */
2892 extern Lisp_Object Qvariable_documentation
, Qstandard_input
;
2893 extern Lisp_Object Qbackquote
, Qcomma
, Qcomma_at
, Qcomma_dot
, Qfunction
;
2895 EXFUN (Fread_from_string
, 3);
2897 EXFUN (Fintern_soft
, 2);
2898 EXFUN (Funintern
, 2);
2900 EXFUN (Fget_load_suffixes
, 0);
2901 EXFUN (Fread_char
, 3);
2902 EXFUN (Fread_event
, 3);
2903 extern Lisp_Object
check_obarray (Lisp_Object
);
2904 extern Lisp_Object
intern (const char *);
2905 extern Lisp_Object
intern_c_string (const char *);
2906 extern Lisp_Object
oblookup (Lisp_Object
, const char *, EMACS_INT
, EMACS_INT
);
2907 #define LOADHIST_ATTACH(x) \
2909 if (initialized) Vcurrent_load_list = Fcons (x, Vcurrent_load_list); \
2911 extern int openp (Lisp_Object
, Lisp_Object
, Lisp_Object
,
2912 Lisp_Object
*, Lisp_Object
);
2913 Lisp_Object
string_to_number (char const *, int, int);
2914 extern void map_obarray (Lisp_Object
, void (*) (Lisp_Object
, Lisp_Object
),
2916 extern void dir_warning (const char *, Lisp_Object
);
2917 extern void close_load_descs (void);
2918 extern void init_obarray (void);
2919 extern void init_lread (void);
2920 extern void syms_of_lread (void);
2922 /* Defined in eval.c. */
2923 extern Lisp_Object Qautoload
, Qexit
, Qinteractive
, Qcommandp
, Qdefun
, Qmacro
;
2924 extern Lisp_Object Qinhibit_quit
, Qclosure
;
2925 extern Lisp_Object Qand_rest
;
2926 extern Lisp_Object Vautoload_queue
;
2927 extern Lisp_Object Vsignaling_function
;
2928 extern int handling_signal
;
2930 extern struct catchtag
*catchlist
;
2931 extern struct handler
*handlerlist
;
2933 /* To run a normal hook, use the appropriate function from the list below.
2934 The calling convention:
2936 if (!NILP (Vrun_hooks))
2937 call1 (Vrun_hooks, Qmy_funny_hook);
2939 should no longer be used. */
2940 extern Lisp_Object Vrun_hooks
;
2941 EXFUN (Frun_hooks
, MANY
);
2942 EXFUN (Frun_hook_with_args
, MANY
);
2943 EXFUN (Frun_hook_with_args_until_failure
, MANY
);
2944 extern void run_hook_with_args_2 (Lisp_Object
, Lisp_Object
, Lisp_Object
);
2945 extern Lisp_Object
run_hook_with_args (ptrdiff_t nargs
, Lisp_Object
*args
,
2946 Lisp_Object (*funcall
)
2947 (ptrdiff_t nargs
, Lisp_Object
*args
));
2948 EXFUN (Fprogn
, UNEVALLED
);
2949 EXFUN (Finteractive_p
, 0);
2950 EXFUN (Fthrow
, 2) NO_RETURN
;
2952 extern void xsignal (Lisp_Object
, Lisp_Object
) NO_RETURN
;
2953 extern void xsignal0 (Lisp_Object
) NO_RETURN
;
2954 extern void xsignal1 (Lisp_Object
, Lisp_Object
) NO_RETURN
;
2955 extern void xsignal2 (Lisp_Object
, Lisp_Object
, Lisp_Object
) NO_RETURN
;
2956 extern void xsignal3 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
) NO_RETURN
;
2957 extern void signal_error (const char *, Lisp_Object
) NO_RETURN
;
2958 EXFUN (Fcommandp
, 2);
2959 EXFUN (Ffunctionp
, 1);
2961 extern Lisp_Object
eval_sub (Lisp_Object form
);
2962 EXFUN (Fapply
, MANY
);
2963 EXFUN (Ffuncall
, MANY
);
2964 extern Lisp_Object
apply1 (Lisp_Object
, Lisp_Object
);
2965 extern Lisp_Object
call0 (Lisp_Object
);
2966 extern Lisp_Object
call1 (Lisp_Object
, Lisp_Object
);
2967 extern Lisp_Object
call2 (Lisp_Object
, Lisp_Object
, Lisp_Object
);
2968 extern Lisp_Object
call3 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
2969 extern Lisp_Object
call4 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
2970 extern Lisp_Object
call5 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
2971 extern Lisp_Object
call6 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
2972 extern Lisp_Object
call7 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
2973 EXFUN (Fdo_auto_save
, 2);
2974 extern Lisp_Object
internal_catch (Lisp_Object
, Lisp_Object (*) (Lisp_Object
), Lisp_Object
);
2975 extern Lisp_Object
internal_lisp_condition_case (Lisp_Object
, Lisp_Object
, Lisp_Object
);
2976 extern Lisp_Object
internal_condition_case (Lisp_Object (*) (void), Lisp_Object
, Lisp_Object (*) (Lisp_Object
));
2977 extern Lisp_Object
internal_condition_case_1 (Lisp_Object (*) (Lisp_Object
), Lisp_Object
, Lisp_Object
, Lisp_Object (*) (Lisp_Object
));
2978 extern Lisp_Object
internal_condition_case_2 (Lisp_Object (*) (Lisp_Object
, Lisp_Object
), Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object (*) (Lisp_Object
));
2979 extern Lisp_Object
internal_condition_case_n (Lisp_Object (*) (ptrdiff_t, Lisp_Object
*), ptrdiff_t, Lisp_Object
*, Lisp_Object
, Lisp_Object (*) (Lisp_Object
));
2980 extern void specbind (Lisp_Object
, Lisp_Object
);
2981 extern void record_unwind_protect (Lisp_Object (*) (Lisp_Object
), Lisp_Object
);
2982 extern Lisp_Object
unbind_to (int, Lisp_Object
);
2983 extern void error (const char *, ...) NO_RETURN
ATTRIBUTE_FORMAT_PRINTF (1, 2);
2984 extern void verror (const char *, va_list)
2985 NO_RETURN
ATTRIBUTE_FORMAT_PRINTF (1, 0);
2986 extern void do_autoload (Lisp_Object
, Lisp_Object
);
2987 extern Lisp_Object
un_autoload (Lisp_Object
);
2988 extern void init_eval_once (void);
2989 extern Lisp_Object
safe_call (ptrdiff_t, Lisp_Object
*);
2990 extern Lisp_Object
safe_call1 (Lisp_Object
, Lisp_Object
);
2991 extern Lisp_Object
safe_call2 (Lisp_Object
, Lisp_Object
, Lisp_Object
);
2992 extern void init_eval (void);
2994 extern void mark_backtrace (void);
2996 extern void syms_of_eval (void);
2998 /* Defined in editfns.c */
2999 extern Lisp_Object Qfield
;
3000 EXFUN (Fcurrent_message
, 0);
3001 EXFUN (Fgoto_char
, 1);
3002 EXFUN (Fpoint_max_marker
, 0);
3004 EXFUN (Fpoint_marker
, 0);
3005 EXFUN (Fline_beginning_position
, 1);
3006 EXFUN (Fline_end_position
, 1);
3007 EXFUN (Ffollowing_char
, 0);
3008 EXFUN (Fprevious_char
, 0);
3009 EXFUN (Fchar_after
, 1);
3010 EXFUN (Finsert
, MANY
);
3011 EXFUN (Finsert_char
, 3);
3012 extern void insert1 (Lisp_Object
);
3017 EXFUN (Fformat
, MANY
);
3018 EXFUN (Fmessage
, MANY
);
3019 extern Lisp_Object
format2 (const char *, Lisp_Object
, Lisp_Object
);
3020 EXFUN (Fbuffer_substring
, 2);
3021 EXFUN (Fbuffer_string
, 0);
3022 extern Lisp_Object
save_excursion_save (void);
3023 extern Lisp_Object
save_restriction_save (void);
3024 extern Lisp_Object
save_excursion_restore (Lisp_Object
);
3025 extern Lisp_Object
save_restriction_restore (Lisp_Object
);
3026 EXFUN (Fchar_to_string
, 1);
3027 EXFUN (Fdelete_region
, 2);
3028 EXFUN (Fnarrow_to_region
, 2);
3030 EXFUN (Fuser_login_name
, 1);
3031 EXFUN (Fsystem_name
, 0);
3032 EXFUN (Fcurrent_time
, 0);
3033 EXFUN (Fget_internal_run_time
, 0);
3034 extern EMACS_INT
clip_to_bounds (EMACS_INT
, EMACS_INT
, EMACS_INT
);
3035 extern Lisp_Object
make_buffer_string (EMACS_INT
, EMACS_INT
, int);
3036 extern Lisp_Object
make_buffer_string_both (EMACS_INT
, EMACS_INT
, EMACS_INT
,
3038 extern void init_editfns (void);
3039 const char *get_system_name (void);
3040 extern void syms_of_editfns (void);
3041 EXFUN (Fconstrain_to_field
, 5);
3042 EXFUN (Ffield_end
, 3);
3043 extern void set_time_zone_rule (const char *);
3045 /* Defined in buffer.c */
3046 extern int mouse_face_overlay_overlaps (Lisp_Object
);
3047 extern void nsberror (Lisp_Object
) NO_RETURN
;
3048 EXFUN (Fset_buffer_multibyte
, 1);
3049 EXFUN (Foverlay_start
, 1);
3050 EXFUN (Foverlay_end
, 1);
3051 extern void adjust_overlays_for_insert (EMACS_INT
, EMACS_INT
);
3052 extern void adjust_overlays_for_delete (EMACS_INT
, EMACS_INT
);
3053 extern void fix_start_end_in_overlays (EMACS_INT
, EMACS_INT
);
3054 extern void report_overlay_modification (Lisp_Object
, Lisp_Object
, int,
3055 Lisp_Object
, Lisp_Object
, Lisp_Object
);
3056 extern int overlay_touches_p (EMACS_INT
);
3057 extern Lisp_Object Vbuffer_alist
;
3058 EXFUN (Fget_buffer
, 1);
3059 EXFUN (Fget_buffer_create
, 1);
3060 EXFUN (Fgenerate_new_buffer_name
, 2);
3061 EXFUN (Fset_buffer
, 1);
3062 extern Lisp_Object
set_buffer_if_live (Lisp_Object
);
3063 EXFUN (Fbarf_if_buffer_read_only
, 0);
3064 EXFUN (Fcurrent_buffer
, 0);
3065 EXFUN (Fother_buffer
, 3);
3066 extern Lisp_Object
other_buffer_safely (Lisp_Object
);
3067 EXFUN (Foverlay_get
, 2);
3068 EXFUN (Fbuffer_modified_p
, 1);
3069 EXFUN (Fset_buffer_modified_p
, 1);
3070 EXFUN (Fkill_buffer
, 1);
3071 EXFUN (Fkill_all_local_variables
, 0);
3072 EXFUN (Fbuffer_enable_undo
, 1);
3073 EXFUN (Ferase_buffer
, 0);
3074 extern Lisp_Object Qpriority
, Qwindow
, Qbefore_string
, Qafter_string
;
3075 extern Lisp_Object
get_truename_buffer (Lisp_Object
);
3076 extern struct buffer
*all_buffers
;
3077 EXFUN (Fprevious_overlay_change
, 1);
3078 EXFUN (Fbuffer_file_name
, 1);
3079 extern void init_buffer_once (void);
3080 extern void init_buffer (void);
3081 extern void syms_of_buffer (void);
3082 extern void keys_of_buffer (void);
3084 /* Defined in marker.c */
3086 EXFUN (Fmarker_position
, 1);
3087 EXFUN (Fmarker_buffer
, 1);
3088 EXFUN (Fcopy_marker
, 2);
3089 EXFUN (Fset_marker
, 3);
3090 extern EMACS_INT
marker_position (Lisp_Object
);
3091 extern EMACS_INT
marker_byte_position (Lisp_Object
);
3092 extern void clear_charpos_cache (struct buffer
*);
3093 extern EMACS_INT
charpos_to_bytepos (EMACS_INT
);
3094 extern EMACS_INT
buf_charpos_to_bytepos (struct buffer
*, EMACS_INT
);
3095 extern EMACS_INT
buf_bytepos_to_charpos (struct buffer
*, EMACS_INT
);
3096 extern void unchain_marker (struct Lisp_Marker
*marker
);
3097 extern Lisp_Object
set_marker_restricted (Lisp_Object
, Lisp_Object
, Lisp_Object
);
3098 extern Lisp_Object
set_marker_both (Lisp_Object
, Lisp_Object
, EMACS_INT
, EMACS_INT
);
3099 extern Lisp_Object
set_marker_restricted_both (Lisp_Object
, Lisp_Object
,
3100 EMACS_INT
, EMACS_INT
);
3101 extern void syms_of_marker (void);
3103 /* Defined in fileio.c */
3105 extern Lisp_Object Qfile_error
;
3106 extern Lisp_Object Qfile_exists_p
;
3107 extern Lisp_Object Qfile_directory_p
;
3108 extern Lisp_Object Qinsert_file_contents
;
3109 extern Lisp_Object Qfile_name_history
;
3110 EXFUN (Ffind_file_name_handler
, 2);
3111 EXFUN (Ffile_name_as_directory
, 1);
3112 EXFUN (Fexpand_file_name
, 2);
3113 EXFUN (Ffile_name_nondirectory
, 1);
3114 EXFUN (Fsubstitute_in_file_name
, 1);
3115 EXFUN (Ffile_symlink_p
, 1);
3116 EXFUN (Fverify_visited_file_modtime
, 1);
3117 EXFUN (Ffile_exists_p
, 1);
3118 EXFUN (Ffile_name_absolute_p
, 1);
3119 EXFUN (Fdirectory_file_name
, 1);
3120 EXFUN (Ffile_name_directory
, 1);
3121 extern Lisp_Object
expand_and_dir_to_file (Lisp_Object
, Lisp_Object
);
3122 EXFUN (Ffile_accessible_directory_p
, 1);
3123 EXFUN (Funhandled_file_name_directory
, 1);
3124 EXFUN (Ffile_directory_p
, 1);
3125 EXFUN (Fwrite_region
, 7);
3126 EXFUN (Ffile_readable_p
, 1);
3127 EXFUN (Fread_file_name
, 6);
3128 extern Lisp_Object
close_file_unwind (Lisp_Object
);
3129 extern Lisp_Object
restore_point_unwind (Lisp_Object
);
3130 extern void report_file_error (const char *, Lisp_Object
) NO_RETURN
;
3131 extern int internal_delete_file (Lisp_Object
);
3132 extern void syms_of_fileio (void);
3133 extern Lisp_Object
make_temp_name (Lisp_Object
, int);
3134 extern Lisp_Object Qdelete_file
;
3136 /* Defined in abbrev.c */
3138 extern void syms_of_abbrev (void);
3140 /* Defined in search.c */
3141 extern void shrink_regexp_cache (void);
3142 EXFUN (Fstring_match
, 3);
3143 extern void restore_search_regs (void);
3144 EXFUN (Fmatch_data
, 3);
3145 EXFUN (Fset_match_data
, 2);
3146 EXFUN (Fmatch_beginning
, 1);
3147 EXFUN (Fmatch_end
, 1);
3148 extern void record_unwind_save_match_data (void);
3149 struct re_registers
;
3150 extern struct re_pattern_buffer
*compile_pattern (Lisp_Object
,
3151 struct re_registers
*,
3152 Lisp_Object
, int, int);
3153 extern EMACS_INT
fast_string_match (Lisp_Object
, Lisp_Object
);
3154 extern EMACS_INT
fast_c_string_match_ignore_case (Lisp_Object
, const char *);
3155 extern EMACS_INT
fast_string_match_ignore_case (Lisp_Object
, Lisp_Object
);
3156 extern EMACS_INT
fast_looking_at (Lisp_Object
, EMACS_INT
, EMACS_INT
,
3157 EMACS_INT
, EMACS_INT
, Lisp_Object
);
3158 extern EMACS_INT
scan_buffer (int, EMACS_INT
, EMACS_INT
, EMACS_INT
,
3160 extern EMACS_INT
scan_newline (EMACS_INT
, EMACS_INT
, EMACS_INT
, EMACS_INT
,
3162 extern EMACS_INT
find_next_newline (EMACS_INT
, int);
3163 extern EMACS_INT
find_next_newline_no_quit (EMACS_INT
, EMACS_INT
);
3164 extern EMACS_INT
find_before_next_newline (EMACS_INT
, EMACS_INT
, EMACS_INT
);
3165 extern void syms_of_search (void);
3166 extern void clear_regexp_cache (void);
3168 /* Defined in minibuf.c */
3170 extern Lisp_Object Qcompletion_ignore_case
;
3171 extern Lisp_Object Vminibuffer_list
;
3172 extern Lisp_Object last_minibuf_string
;
3173 EXFUN (Fcompleting_read
, 8);
3174 EXFUN (Fread_from_minibuffer
, 7);
3175 EXFUN (Fread_variable
, 2);
3176 EXFUN (Fread_buffer
, 3);
3177 EXFUN (Fread_minibuffer
, 2);
3178 EXFUN (Feval_minibuffer
, 2);
3179 EXFUN (Fread_string
, 5);
3180 EXFUN (Fassoc_string
, 3);
3181 extern Lisp_Object
get_minibuffer (int);
3182 extern void init_minibuf_once (void);
3183 extern void syms_of_minibuf (void);
3185 /* Defined in callint.c */
3187 extern Lisp_Object Qminus
, Qplus
;
3188 extern Lisp_Object Qwhen
;
3189 extern Lisp_Object Qcall_interactively
, Qmouse_leave_buffer_hook
;
3190 EXFUN (Fprefix_numeric_value
, 1);
3191 extern void syms_of_callint (void);
3193 /* Defined in casefiddle.c */
3195 extern Lisp_Object Qidentity
;
3196 EXFUN (Fdowncase
, 1);
3198 EXFUN (Fupcase_region
, 2);
3199 EXFUN (Fupcase_initials
, 1);
3200 EXFUN (Fupcase_initials_region
, 2);
3201 extern void syms_of_casefiddle (void);
3202 extern void keys_of_casefiddle (void);
3204 /* Defined in casetab.c */
3206 EXFUN (Fset_case_table
, 1);
3207 EXFUN (Fset_standard_case_table
, 1);
3208 extern void init_casetab_once (void);
3209 extern void syms_of_casetab (void);
3211 /* Defined in keyboard.c */
3213 extern Lisp_Object echo_message_buffer
;
3214 extern struct kboard
*echo_kboard
;
3215 extern void cancel_echoing (void);
3216 extern Lisp_Object Qdisabled
, QCfilter
;
3217 extern Lisp_Object Qup
, Qdown
, Qbottom
;
3218 extern Lisp_Object Qtop
;
3219 extern int input_pending
;
3220 EXFUN (Fdiscard_input
, 0);
3221 EXFUN (Frecursive_edit
, 0);
3222 EXFUN (Ftop_level
, 0) NO_RETURN
;
3223 extern Lisp_Object
menu_bar_items (Lisp_Object
);
3224 extern Lisp_Object
tool_bar_items (Lisp_Object
, int *);
3225 extern void discard_mouse_events (void);
3226 EXFUN (Fevent_convert_list
, 1);
3227 EXFUN (Fread_key_sequence
, 5);
3228 EXFUN (Fset_input_interrupt_mode
, 1);
3229 EXFUN (Fset_input_mode
, 4);
3230 extern Lisp_Object pending_funcalls
;
3231 extern int detect_input_pending (void);
3232 extern int detect_input_pending_ignore_squeezables (void);
3233 extern int detect_input_pending_run_timers (int);
3234 extern void safe_run_hooks (Lisp_Object
);
3235 extern void cmd_error_internal (Lisp_Object
, const char *);
3236 extern Lisp_Object
command_loop_1 (void);
3237 extern Lisp_Object
recursive_edit_1 (void);
3238 extern void record_auto_save (void);
3240 extern void force_auto_save_soon (void);
3242 extern void init_keyboard (void);
3243 extern void syms_of_keyboard (void);
3244 extern void keys_of_keyboard (void);
3245 extern char *push_key_description (unsigned int, char *, int);
3248 /* Defined in indent.c */
3249 EXFUN (Fvertical_motion
, 2);
3250 EXFUN (Findent_to
, 2);
3251 EXFUN (Fmove_to_column
, 2);
3252 extern EMACS_INT
current_column (void);
3253 extern void invalidate_current_column (void);
3254 extern int indented_beyond_p (EMACS_INT
, EMACS_INT
, EMACS_INT
);
3255 extern void syms_of_indent (void);
3257 /* Defined in frame.c */
3258 #ifdef HAVE_WINDOW_SYSTEM
3259 #endif /* HAVE_WINDOW_SYSTEM */
3260 extern Lisp_Object Qonly
;
3261 extern Lisp_Object Qvisible
;
3262 extern void store_frame_param (struct frame
*, Lisp_Object
, Lisp_Object
);
3263 extern void store_in_alist (Lisp_Object
*, Lisp_Object
, Lisp_Object
);
3264 extern Lisp_Object
do_switch_frame (Lisp_Object
, int, int, Lisp_Object
);
3266 extern Lisp_Object
get_frame_param (struct frame
*, Lisp_Object
);
3268 extern Lisp_Object
frame_buffer_predicate (Lisp_Object
);
3269 EXFUN (Fselect_frame
, 2);
3270 EXFUN (Fselected_frame
, 0);
3271 EXFUN (Fmake_frame_visible
, 1);
3272 EXFUN (Ficonify_frame
, 1);
3273 EXFUN (Fframe_parameter
, 2);
3274 EXFUN (Fmodify_frame_parameters
, 2);
3275 EXFUN (Fraise_frame
, 1);
3276 EXFUN (Fredirect_frame_focus
, 2);
3277 extern void frames_discard_buffer (Lisp_Object
);
3278 extern void syms_of_frame (void);
3280 /* Defined in emacs.c */
3281 extern char **initial_argv
;
3282 extern int initial_argc
;
3283 #if defined(HAVE_X_WINDOWS) || defined(HAVE_NS)
3284 extern int display_arg
;
3286 extern Lisp_Object
decode_env_path (const char *, const char *);
3287 extern Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
3288 extern Lisp_Object Qfile_name_handler_alist
;
3289 #ifdef FLOAT_CATCH_SIGILL
3290 extern void fatal_error_signal (int);
3292 EXFUN (Fkill_emacs
, 1) NO_RETURN
;
3294 void fixup_locale (void);
3295 void synchronize_system_messages_locale (void);
3296 void synchronize_system_time_locale (void);
3298 #define setlocale(category, locale)
3299 #define fixup_locale()
3300 #define synchronize_system_messages_locale()
3301 #define synchronize_system_time_locale()
3303 void shut_down_emacs (int, int, Lisp_Object
);
3304 /* Nonzero means don't do interactive redisplay and don't change tty modes. */
3305 extern int noninteractive
;
3307 /* Nonzero means remove site-lisp directories from load-path. */
3308 extern int no_site_lisp
;
3310 /* Pipe used to send exit notification to the daemon parent at
3312 extern int daemon_pipe
[2];
3313 #define IS_DAEMON (daemon_pipe[1] != 0)
3315 /* Nonzero means don't do use window-system-specific display code. */
3316 extern int inhibit_window_system
;
3317 /* Nonzero means that a filter or a sentinel is running. */
3318 extern int running_asynch_code
;
3320 /* Defined in process.c. */
3321 extern Lisp_Object QCtype
, Qlocal
;
3322 EXFUN (Fget_buffer_process
, 1);
3323 EXFUN (Fprocess_status
, 1);
3324 EXFUN (Fkill_process
, 2);
3325 EXFUN (Fwaiting_for_user_input_p
, 0);
3326 extern Lisp_Object Qprocessp
;
3327 extern void kill_buffer_processes (Lisp_Object
);
3328 extern int wait_reading_process_output (int, int, int, int,
3330 struct Lisp_Process
*,
3332 extern void add_keyboard_wait_descriptor (int);
3333 extern void delete_keyboard_wait_descriptor (int);
3335 extern void add_gpm_wait_descriptor (int);
3336 extern void delete_gpm_wait_descriptor (int);
3338 extern void close_process_descs (void);
3339 extern void init_process (void);
3340 extern void syms_of_process (void);
3341 extern void setup_process_coding_systems (Lisp_Object
);
3343 EXFUN (Fcall_process
, MANY
);
3344 extern int child_setup (int, int, int, char **, int, Lisp_Object
)
3349 extern void init_callproc_1 (void);
3350 extern void init_callproc (void);
3351 extern void set_initial_environment (void);
3352 extern void syms_of_callproc (void);
3354 /* Defined in doc.c */
3355 extern Lisp_Object Qfunction_documentation
;
3356 EXFUN (Fsubstitute_command_keys
, 1);
3357 extern Lisp_Object
read_doc_string (Lisp_Object
);
3358 extern Lisp_Object
get_doc_string (Lisp_Object
, int, int);
3359 extern void syms_of_doc (void);
3360 extern int read_bytecode_char (int);
3362 /* Defined in bytecode.c */
3363 extern Lisp_Object Qbytecode
;
3364 extern void syms_of_bytecode (void);
3365 extern struct byte_stack
*byte_stack_list
;
3367 extern void mark_byte_stack (void);
3369 extern void unmark_byte_stack (void);
3370 extern Lisp_Object
exec_byte_code (Lisp_Object
, Lisp_Object
, Lisp_Object
,
3371 Lisp_Object
, ptrdiff_t, Lisp_Object
*);
3373 /* Defined in macros.c */
3374 extern Lisp_Object Qexecute_kbd_macro
;
3375 EXFUN (Fexecute_kbd_macro
, 3);
3376 EXFUN (Fcancel_kbd_macro_events
, 0);
3377 extern void init_macros (void);
3378 extern void syms_of_macros (void);
3380 /* Defined in undo.c */
3381 extern Lisp_Object Qapply
;
3382 extern Lisp_Object Qinhibit_read_only
;
3383 EXFUN (Fundo_boundary
, 0);
3384 extern void truncate_undo_list (struct buffer
*);
3385 extern void record_marker_adjustment (Lisp_Object
, EMACS_INT
);
3386 extern void record_insert (EMACS_INT
, EMACS_INT
);
3387 extern void record_delete (EMACS_INT
, Lisp_Object
);
3388 extern void record_first_change (void);
3389 extern void record_change (EMACS_INT
, EMACS_INT
);
3390 extern void record_property_change (EMACS_INT
, EMACS_INT
,
3391 Lisp_Object
, Lisp_Object
,
3393 extern void syms_of_undo (void);
3394 /* Defined in textprop.c */
3395 extern Lisp_Object Qfont
, Qmouse_face
;
3396 extern Lisp_Object Qinsert_in_front_hooks
, Qinsert_behind_hooks
;
3397 extern Lisp_Object Qfront_sticky
, Qrear_nonsticky
;
3398 extern Lisp_Object Qminibuffer_prompt
;
3400 EXFUN (Fnext_single_property_change
, 4);
3401 EXFUN (Fnext_single_char_property_change
, 4);
3402 EXFUN (Fprevious_single_property_change
, 4);
3403 EXFUN (Fget_text_property
, 3);
3404 EXFUN (Fput_text_property
, 5);
3405 EXFUN (Fprevious_char_property_change
, 2);
3406 EXFUN (Fnext_char_property_change
, 2);
3407 extern void report_interval_modification (Lisp_Object
, Lisp_Object
);
3409 /* Defined in menu.c */
3410 extern void syms_of_menu (void);
3412 /* Defined in xmenu.c */
3413 EXFUN (Fx_popup_menu
, 2);
3414 EXFUN (Fx_popup_dialog
, 3);
3415 extern void syms_of_xmenu (void);
3417 /* Defined in termchar.h */
3418 struct tty_display_info
;
3420 /* Defined in termhooks.h */
3423 /* Defined in sysdep.c */
3424 #ifndef HAVE_GET_CURRENT_DIR_NAME
3425 extern char *get_current_dir_name (void);
3427 extern void stuff_char (char c
);
3428 extern void init_sigio (int);
3429 extern void sys_subshell (void);
3430 extern void sys_suspend (void);
3431 extern void discard_tty_input (void);
3432 extern void init_sys_modes (struct tty_display_info
*);
3433 extern void reset_sys_modes (struct tty_display_info
*);
3434 extern void init_all_sys_modes (void);
3435 extern void reset_all_sys_modes (void);
3436 extern void wait_for_termination (int);
3437 extern void interruptible_wait_for_termination (int);
3438 extern void flush_pending_output (int);
3439 extern void child_setup_tty (int);
3440 extern void setup_pty (int);
3441 extern int set_window_size (int, int, int);
3442 extern EMACS_INT
get_random (void);
3443 extern void seed_random (long);
3444 extern int emacs_open (const char *, int, int);
3445 extern int emacs_close (int);
3446 extern EMACS_INT
emacs_read (int, char *, EMACS_INT
);
3447 extern EMACS_INT
emacs_write (int, const char *, EMACS_INT
);
3448 enum { READLINK_BUFSIZE
= 1024 };
3449 extern char *emacs_readlink (const char *, char [READLINK_BUFSIZE
]);
3451 EXFUN (Funlock_buffer
, 0);
3452 extern void unlock_all_files (void);
3453 extern void lock_file (Lisp_Object
);
3454 extern void unlock_file (Lisp_Object
);
3455 extern void unlock_buffer (struct buffer
*);
3456 extern void syms_of_filelock (void);
3457 extern void init_filelock (void);
3459 /* Defined in sound.c */
3460 extern void syms_of_sound (void);
3461 extern void init_sound (void);
3463 /* Defined in category.c */
3464 extern void init_category_once (void);
3465 extern Lisp_Object
char_category_set (int);
3466 extern void syms_of_category (void);
3468 /* Defined in ccl.c */
3469 extern void syms_of_ccl (void);
3471 /* Defined in dired.c */
3472 extern void syms_of_dired (void);
3473 extern Lisp_Object
directory_files_internal (Lisp_Object
, Lisp_Object
,
3474 Lisp_Object
, Lisp_Object
,
3477 /* Defined in term.c */
3478 extern int *char_ins_del_vector
;
3479 extern void mark_ttys (void);
3480 extern void syms_of_term (void);
3481 extern void fatal (const char *msgid
, ...)
3482 NO_RETURN
ATTRIBUTE_FORMAT_PRINTF (1, 2);
3484 /* Defined in terminal.c */
3485 EXFUN (Fframe_terminal
, 1);
3486 EXFUN (Fdelete_terminal
, 2);
3487 extern void syms_of_terminal (void);
3489 /* Defined in font.c */
3490 extern void syms_of_font (void);
3491 extern void init_font (void);
3493 #ifdef HAVE_WINDOW_SYSTEM
3494 /* Defined in fontset.c */
3495 extern void syms_of_fontset (void);
3497 /* Defined in xfns.c, w32fns.c, or macfns.c */
3498 extern Lisp_Object Qfont_param
;
3499 EXFUN (Fxw_display_color_p
, 1);
3500 EXFUN (Fx_focus_frame
, 1);
3503 /* Defined in xfaces.c */
3504 extern Lisp_Object Qdefault
, Qtool_bar
, Qfringe
;
3505 extern Lisp_Object Qheader_line
, Qscroll_bar
, Qcursor
;
3506 extern Lisp_Object Qmode_line_inactive
;
3507 extern Lisp_Object Qface
;
3508 extern Lisp_Object Qnormal
;
3509 extern Lisp_Object QCfamily
, QCweight
, QCslant
;
3510 extern Lisp_Object QCheight
, QCname
, QCwidth
, QCforeground
, QCbackground
;
3511 extern Lisp_Object Vface_alternative_font_family_alist
;
3512 extern Lisp_Object Vface_alternative_font_registry_alist
;
3513 EXFUN (Fclear_face_cache
, 1);
3514 EXFUN (Fx_load_color_file
, 1);
3515 extern void syms_of_xfaces (void);
3517 #ifdef HAVE_X_WINDOWS
3518 /* Defined in xfns.c */
3519 extern void syms_of_xfns (void);
3521 /* Defined in xsmfns.c */
3522 extern void syms_of_xsmfns (void);
3524 /* Defined in xselect.c */
3525 extern void syms_of_xselect (void);
3527 /* Defined in xterm.c */
3528 extern void syms_of_xterm (void);
3529 #endif /* HAVE_X_WINDOWS */
3531 #ifdef HAVE_WINDOW_SYSTEM
3532 /* Defined in xterm.c, nsterm.m, w32term.c */
3533 extern char *x_get_keysym_name (int);
3534 #endif /* HAVE_WINDOW_SYSTEM */
3537 /* Defined in msdos.c */
3538 EXFUN (Fmsdos_downcase_filename
, 1);
3542 /* Defined in xml.c */
3543 extern void syms_of_xml (void);
3547 /* Defined in (x|w32)fns.c, nsfns.m... */
3548 extern int have_menus_p (void);
3552 /* Defined in dbusbind.c */
3553 void syms_of_dbusbind (void);
3557 /* Defined in msdos.c, w32.c */
3558 extern char *emacs_root_dir (void);
3561 /* Nonzero means Emacs has already been initialized.
3562 Used during startup to detect startup of dumped Emacs. */
3563 extern int initialized
;
3565 extern int immediate_quit
; /* Nonzero means ^G can quit instantly */
3567 extern POINTER_TYPE
*xmalloc (size_t);
3568 extern POINTER_TYPE
*xrealloc (POINTER_TYPE
*, size_t);
3569 extern void xfree (POINTER_TYPE
*);
3571 extern char *xstrdup (const char *);
3573 extern char *egetenv (const char *);
3575 /* Set up the name of the machine we're running on. */
3576 extern void init_system_name (void);
3578 /* Some systems (e.g., NT) use a different path separator than Unix,
3579 in addition to a device separator. Set the path separator
3580 to '/', and don't test for a device separator in IS_ANY_SEP. */
3582 #define DIRECTORY_SEP '/'
3583 #ifndef IS_DIRECTORY_SEP
3584 #define IS_DIRECTORY_SEP(_c_) ((_c_) == DIRECTORY_SEP)
3586 #ifndef IS_DEVICE_SEP
3588 #define IS_DEVICE_SEP(_c_) 0
3590 #define IS_DEVICE_SEP(_c_) ((_c_) == DEVICE_SEP)
3594 #define IS_ANY_SEP(_c_) (IS_DIRECTORY_SEP (_c_))
3597 #define SWITCH_ENUM_CAST(x) (x)
3599 /* Use this to suppress gcc's warnings. */
3602 /* Use CODE only if lint checking is in effect. */
3603 # define IF_LINT(Code) Code
3605 /* Assume that the expression COND is true. This differs in intent
3606 from 'assert', as it is a message from the programmer to the compiler. */
3607 # define lint_assume(cond) ((cond) ? (void) 0 : abort ())
3610 # define IF_LINT(Code) /* empty */
3611 # define lint_assume(cond) ((void) (0 && (cond)))
3614 /* The ubiquitous min and max macros. */
3620 #define min(a, b) ((a) < (b) ? (a) : (b))
3621 #define max(a, b) ((a) > (b) ? (a) : (b))
3623 /* We used to use `abs', but that clashes with system headers on some
3624 platforms, and using a name reserved by Standard C is a bad idea
3627 #define eabs(x) ((x) < 0 ? -(x) : (x))
3630 /* Return a fixnum or float, depending on whether VAL fits in a Lisp
3633 #define make_fixnum_or_float(val) \
3634 (FIXNUM_OVERFLOW_P (val) ? make_float (val) : make_number (val))
3637 /* Checks the `cycle check' variable CHECK to see if it indicates that
3638 EL is part of a cycle; CHECK must be either Qnil or a value returned
3639 by an earlier use of CYCLE_CHECK. SUSPICIOUS is the number of
3640 elements after which a cycle might be suspected; after that many
3641 elements, this macro begins consing in order to keep more precise
3644 Returns nil if a cycle was detected, otherwise a new value for CHECK
3647 CHECK is evaluated multiple times, EL and SUSPICIOUS 0 or 1 times, so
3648 the caller should make sure that's ok. */
3650 #define CYCLE_CHECK(check, el, suspicious) \
3653 : (INTEGERP (check) \
3654 ? (XFASTINT (check) < (suspicious) \
3655 ? make_number (XFASTINT (check) + 1) \
3656 : Fcons (el, Qnil)) \
3657 : (!NILP (Fmemq ((el), (check))) \
3659 : Fcons ((el), (check)))))
3662 /* SAFE_ALLOCA normally allocates memory on the stack, but if size is
3663 larger than MAX_ALLOCA, use xmalloc to avoid overflowing the stack. */
3665 #define MAX_ALLOCA 16*1024
3667 extern Lisp_Object
safe_alloca_unwind (Lisp_Object
);
3669 #define USE_SAFE_ALLOCA \
3670 int sa_count = (int) SPECPDL_INDEX (), sa_must_free = 0
3672 /* SAFE_ALLOCA allocates a simple buffer. */
3674 #define SAFE_ALLOCA(buf, type, size) \
3676 if ((size) < MAX_ALLOCA) \
3677 buf = (type) alloca (size); \
3680 buf = (type) xmalloc (size); \
3682 record_unwind_protect (safe_alloca_unwind, \
3683 make_save_value (buf, 0)); \
3687 /* SAFE_FREE frees xmalloced memory and enables GC as needed. */
3689 #define SAFE_FREE() \
3691 if (sa_must_free) { \
3693 unbind_to (sa_count, Qnil); \
3698 /* SAFE_ALLOCA_LISP allocates an array of Lisp_Objects. */
3700 #define SAFE_ALLOCA_LISP(buf, nelt) \
3702 if ((nelt) < MAX_ALLOCA / sizeof (Lisp_Object)) \
3703 buf = (Lisp_Object *) alloca ((nelt) * sizeof (Lisp_Object)); \
3704 else if ((nelt) < min (PTRDIFF_MAX, SIZE_MAX) / sizeof (Lisp_Object)) \
3707 buf = (Lisp_Object *) xmalloc ((nelt) * sizeof (Lisp_Object)); \
3708 arg_ = make_save_value (buf, nelt); \
3709 XSAVE_VALUE (arg_)->dogc = 1; \
3711 record_unwind_protect (safe_alloca_unwind, arg_); \
3714 memory_full (SIZE_MAX); \
3718 #include "globals.h"
3720 #endif /* EMACS_LISP_H */