1 /* Fundamental definitions for GNU Emacs Lisp interpreter.
2 Copyright (C) 1985-1987, 1993-1995, 1997-2012
3 Free Software Foundation, Inc.
5 This file is part of GNU Emacs.
7 GNU Emacs is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation, either version 3 of the License, or
10 (at your option) any later version.
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
30 /* Use the configure flag --enable-checking[=LIST] to enable various
31 types of run time checks for Lisp objects. */
33 #ifdef GC_CHECK_CONS_LIST
34 extern void check_cons_list (void);
35 #define CHECK_CONS_LIST() check_cons_list ()
37 #define CHECK_CONS_LIST() ((void) 0)
40 /* Temporarily disable wider-than-pointer integers until they're tested more.
41 Build with CFLAGS='-DWIDE_EMACS_INT' to try them out. */
42 /* #undef WIDE_EMACS_INT */
44 /* 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
172 #define VALBITS (BITS_PER_EMACS_INT - GCTYPEBITS)
175 #ifndef NO_DECL_ALIGN
177 # if HAVE_ATTRIBUTE_ALIGNED
178 # define DECL_ALIGN(type, var) \
179 type __attribute__ ((__aligned__ (1 << GCTYPEBITS))) var
180 # elif defined(_MSC_VER)
181 # define ALIGN_GCTYPEBITS 8
182 # if (1 << GCTYPEBITS) != ALIGN_GCTYPEBITS
183 # error ALIGN_GCTYPEBITS is wrong!
185 # define DECL_ALIGN(type, var) \
186 type __declspec(align(ALIGN_GCTYPEBITS)) var
188 /* What directives do other compilers use? */
193 /* Let's USE_LSB_TAG on systems where we know malloc returns mult-of-8. */
194 #if (defined GNU_MALLOC || defined DOUG_LEA_MALLOC || defined __GLIBC__ \
195 || defined DARWIN_OS || defined __sun)
196 /* We also need to be able to specify mult-of-8 alignment on static vars. */
197 # if defined DECL_ALIGN
198 /* On hosts where VALBITS is greater than the pointer width in bits,
200 a. unnecessary, because the top bits of an EMACS_INT are unused, and
201 b. slower, because it typically requires extra masking.
202 So, define USE_LSB_TAG only on hosts where it might be useful. */
203 # if UINTPTR_MAX >> VALBITS != 0
209 /* If we cannot use 8-byte alignment, make DECL_ALIGN a no-op. */
212 # error "USE_LSB_TAG used without defining DECL_ALIGN"
214 # define DECL_ALIGN(type, var) type var
218 /* Define the fundamental Lisp data structures. */
220 /* If USE_2_TAGBITS_FOR_INTS is defined, then Lisp integers use
221 2 tags, to give them one extra bit, thus extending their range from
222 e.g -2^28..2^28-1 to -2^29..2^29-1. */
223 #define USE_2_TAGS_FOR_INTS
225 /* Making it work for the union case is too much trouble. */
226 #ifdef USE_LISP_UNION_TYPE
227 # undef USE_2_TAGS_FOR_INTS
230 /* This is the set of Lisp data types. */
232 #if !defined USE_2_TAGS_FOR_INTS
233 # define LISP_INT_TAG Lisp_Int
234 # define case_Lisp_Int case Lisp_Int
235 # define LISP_STRING_TAG 4
236 # define LISP_INT_TAG_P(x) ((x) == Lisp_Int)
238 # define LISP_INT_TAG Lisp_Int0
239 # define case_Lisp_Int case Lisp_Int0: case Lisp_Int1
241 # define LISP_INT1_TAG 4
242 # define LISP_STRING_TAG 1
243 # define LISP_INT_TAG_P(x) (((x) & 3) == 0)
245 # define LISP_INT1_TAG 1
246 # define LISP_STRING_TAG 4
247 # define LISP_INT_TAG_P(x) (((x) & 6) == 0)
251 /* Stolen from GDB. The only known compiler that doesn't support
252 enums in bitfields is MSVC. */
254 #define ENUM_BF(TYPE) unsigned int
256 #define ENUM_BF(TYPE) enum TYPE
262 /* Integer. XINT (obj) is the integer value. */
263 #ifdef USE_2_TAGS_FOR_INTS
265 Lisp_Int1
= LISP_INT1_TAG
,
270 /* Symbol. XSYMBOL (object) points to a struct Lisp_Symbol. */
273 /* Miscellaneous. XMISC (object) points to a union Lisp_Misc,
274 whose first member indicates the subtype. */
277 /* String. XSTRING (object) points to a struct Lisp_String.
278 The length of the string, and its contents, are stored therein. */
279 Lisp_String
= LISP_STRING_TAG
,
281 /* Vector of Lisp objects, or something resembling it.
282 XVECTOR (object) points to a struct Lisp_Vector, which contains
283 the size and contents. The size field also contains the type
284 information, if it's not a real vector object. */
287 /* Cons. XCONS (object) points to a struct Lisp_Cons. */
293 /* This is the set of data types that share a common structure.
294 The first member of the structure is a type code from this set.
295 The enum values are arbitrary, but we'll use large numbers to make it
296 more likely that we'll spot the error if a random word in memory is
297 mistakenly interpreted as a Lisp_Misc. */
300 Lisp_Misc_Free
= 0x5eab,
303 Lisp_Misc_Save_Value
,
304 /* Currently floats are not a misc type,
305 but let's define this in case we want to change that. */
307 /* This is not a type code. It is for range checking. */
311 /* These are the types of forwarding objects used in the value slot
312 of symbols for special built-in variables whose value is stored in
316 Lisp_Fwd_Int
, /* Fwd to a C `int' variable. */
317 Lisp_Fwd_Bool
, /* Fwd to a C boolean var. */
318 Lisp_Fwd_Obj
, /* Fwd to a C Lisp_Object variable. */
319 Lisp_Fwd_Buffer_Obj
, /* Fwd to a Lisp_Object field of buffers. */
320 Lisp_Fwd_Kboard_Obj
, /* Fwd to a Lisp_Object field of kboards. */
323 #ifdef USE_LISP_UNION_TYPE
325 #ifndef WORDS_BIGENDIAN
327 /* Definition of Lisp_Object for little-endian machines. */
332 /* Used for comparing two Lisp_Objects;
333 also, positive integers can be accessed fast this way. */
338 /* Use explicit signed, the signedness of a bit-field of type
339 int is implementation defined. */
340 signed EMACS_INT val
: VALBITS
;
341 ENUM_BF (Lisp_Type
) type
: GCTYPEBITS
;
345 EMACS_UINT val
: VALBITS
;
346 ENUM_BF (Lisp_Type
) type
: GCTYPEBITS
;
351 #else /* If WORDS_BIGENDIAN */
356 /* Used for comparing two Lisp_Objects;
357 also, positive integers can be accessed fast this way. */
362 ENUM_BF (Lisp_Type
) type
: GCTYPEBITS
;
363 /* Use explicit signed, the signedness of a bit-field of type
364 int is implementation defined. */
365 signed EMACS_INT val
: VALBITS
;
369 ENUM_BF (Lisp_Type
) type
: GCTYPEBITS
;
370 EMACS_UINT val
: VALBITS
;
375 #endif /* WORDS_BIGENDIAN */
378 static inline Lisp_Object
379 LISP_MAKE_RVALUE (Lisp_Object o
)
384 /* This is more portable to pre-C99 non-GCC compilers, but for
385 backwards compatibility GCC still accepts an old GNU extension
386 which caused this to only generate a warning. */
387 #define LISP_MAKE_RVALUE(o) (0 ? (o) : (o))
390 #else /* USE_LISP_UNION_TYPE */
392 /* If union type is not wanted, define Lisp_Object as just a number. */
394 typedef EMACS_INT Lisp_Object
;
395 #define LISP_MAKE_RVALUE(o) (0+(o))
396 #endif /* USE_LISP_UNION_TYPE */
398 /* In the size word of a vector, this bit means the vector has been marked.
399 (Shift -1 left, not 1, to avoid provoking overflow diagnostics.) */
401 #define ARRAY_MARK_FLAG ((EMACS_INT) -1 << (BITS_PER_EMACS_INT - 1))
403 /* In the size word of a struct Lisp_Vector, this bit means it's really
404 some other vector-like object. */
405 #define PSEUDOVECTOR_FLAG ((EMACS_INT) 1 << (BITS_PER_EMACS_INT - 2))
407 /* In a pseudovector, the size field actually contains a word with one
408 PSEUDOVECTOR_FLAG bit set, and exactly one of the following bits to
409 indicate the actual type.
410 We use a bitset, even tho only one of the bits can be set at any
411 particular time just so as to be able to use micro-optimizations such as
412 testing membership of a particular subset of pseudovectors in Fequal.
413 It is not crucial, but there are plenty of bits here, so why not do it? */
416 PVEC_NORMAL_VECTOR
= 0,
417 PVEC_PROCESS
= 0x200,
419 PVEC_COMPILED
= 0x800,
420 PVEC_WINDOW
= 0x1000,
421 PVEC_WINDOW_CONFIGURATION
= 0x2000,
423 PVEC_CHAR_TABLE
= 0x8000,
424 PVEC_BOOL_VECTOR
= 0x10000,
425 PVEC_BUFFER
= 0x20000,
426 PVEC_HASH_TABLE
= 0x40000,
427 PVEC_TERMINAL
= 0x80000,
428 PVEC_SUB_CHAR_TABLE
= 0x100000,
429 PVEC_FONT
= 0x200000,
430 PVEC_OTHER
= 0x400000,
432 PVEC_XWIDGET
= 0x800000,
433 PVEC_XWIDGET_VIEW
= 0x1000000,
435 PVEC_TYPE_MASK
= 0x3fffe00
437 #if 0 /* This is used to make the value of PSEUDOVECTOR_FLAG available to
438 GDB. It doesn't work on OS Alpha. Moved to a variable in
440 PVEC_FLAG
= PSEUDOVECTOR_FLAG
444 /* For convenience, we also store the number of elements in these bits.
445 Note that this size is not necessarily the memory-footprint size, but
446 only the number of Lisp_Object fields (that need to be traced by the GC).
447 The distinction is used e.g. by Lisp_Process which places extra
448 non-Lisp_Object fields at the end of the structure. */
449 #define PSEUDOVECTOR_SIZE_MASK 0x1ff
451 /* Number of bits to put in each character in the internal representation
452 of bool vectors. This should not vary across implementations. */
453 #define BOOL_VECTOR_BITS_PER_CHAR 8
455 /* These macros extract various sorts of values from a Lisp_Object.
456 For example, if tem is a Lisp_Object whose type is Lisp_Cons,
457 XCONS (tem) is the struct Lisp_Cons * pointing to the memory for that cons. */
459 #ifndef USE_LISP_UNION_TYPE
461 /* Return a perfect hash of the Lisp_Object representation. */
466 #define TYPEMASK ((((EMACS_INT) 1) << GCTYPEBITS) - 1)
467 #define XTYPE(a) ((enum Lisp_Type) ((a) & TYPEMASK))
468 #ifdef USE_2_TAGS_FOR_INTS
469 # define XINT(a) (((EMACS_INT) (a)) >> (GCTYPEBITS - 1))
470 # define XUINT(a) (((EMACS_UINT) (a)) >> (GCTYPEBITS - 1))
471 # define make_number(N) (((EMACS_INT) (N)) << (GCTYPEBITS - 1))
473 # define XINT(a) (((EMACS_INT) (a)) >> GCTYPEBITS)
474 # define XUINT(a) (((EMACS_UINT) (a)) >> GCTYPEBITS)
475 # define make_number(N) (((EMACS_INT) (N)) << GCTYPEBITS)
477 #define XSET(var, type, ptr) \
478 (eassert (XTYPE ((intptr_t) (ptr)) == 0), /* Check alignment. */ \
479 (var) = (type) | (intptr_t) (ptr))
481 #define XPNTR(a) ((intptr_t) ((a) & ~TYPEMASK))
483 #else /* not USE_LSB_TAG */
485 #define VALMASK ((((EMACS_INT) 1) << VALBITS) - 1)
487 /* One need to override this if there must be high bits set in data space
488 (doing the result of the below & ((1 << (GCTYPE + 1)) - 1) would work
489 on all machines, but would penalize machines which don't need it)
491 #define XTYPE(a) ((enum Lisp_Type) (((EMACS_UINT) (a)) >> VALBITS))
493 /* For integers known to be positive, XFASTINT provides fast retrieval
494 and XSETFASTINT provides fast storage. This takes advantage of the
495 fact that Lisp_Int is 0. */
496 #define XFASTINT(a) ((a) + 0)
497 #define XSETFASTINT(a, b) ((a) = (b))
499 /* Extract the value of a Lisp_Object as a (un)signed integer. */
501 #ifdef USE_2_TAGS_FOR_INTS
502 # define XINT(a) ((((EMACS_INT) (a)) << (GCTYPEBITS - 1)) >> (GCTYPEBITS - 1))
503 # define XUINT(a) ((EMACS_UINT) ((a) & (1 + (VALMASK << 1))))
504 # define make_number(N) ((((EMACS_INT) (N)) & (1 + (VALMASK << 1))))
506 # define XINT(a) ((((EMACS_INT) (a)) << (BITS_PER_EMACS_INT - VALBITS)) \
507 >> (BITS_PER_EMACS_INT - VALBITS))
508 # define XUINT(a) ((EMACS_UINT) ((a) & VALMASK))
509 # define make_number(N) \
510 ((((EMACS_INT) (N)) & VALMASK) | ((EMACS_INT) Lisp_Int) << VALBITS)
513 #define XSET(var, type, ptr) \
514 ((var) = ((EMACS_INT) ((EMACS_UINT) (type) << VALBITS) \
515 + ((intptr_t) (ptr) & VALMASK)))
518 /* DATA_SEG_BITS forces extra bits to be or'd in with any pointers
519 which were stored in a Lisp_Object */
520 #define XPNTR(a) ((uintptr_t) (((a) & VALMASK)) | DATA_SEG_BITS))
522 #define XPNTR(a) ((uintptr_t) ((a) & VALMASK))
525 #endif /* not USE_LSB_TAG */
527 #else /* USE_LISP_UNION_TYPE */
529 #ifdef USE_2_TAGS_FOR_INTS
530 # error "USE_2_TAGS_FOR_INTS is not supported with USE_LISP_UNION_TYPE"
533 #define XHASH(a) ((a).i)
534 #define XTYPE(a) ((enum Lisp_Type) (a).u.type)
535 #define XINT(a) ((EMACS_INT) (a).s.val)
536 #define XUINT(a) ((EMACS_UINT) (a).u.val)
540 # define XSET(var, vartype, ptr) \
541 (eassert ((((uintptr_t) (ptr)) & ((1 << GCTYPEBITS) - 1)) == 0), \
542 (var).u.val = ((uintptr_t) (ptr)) >> GCTYPEBITS, \
543 (var).u.type = ((char) (vartype)))
545 /* Some versions of gcc seem to consider the bitfield width when issuing
546 the "cast to pointer from integer of different size" warning, so the
547 cast is here to widen the value back to its natural size. */
548 # define XPNTR(v) ((intptr_t) (v).s.val << GCTYPEBITS)
550 #else /* !USE_LSB_TAG */
552 /* For integers known to be positive, XFASTINT provides fast retrieval
553 and XSETFASTINT provides fast storage. This takes advantage of the
554 fact that Lisp_Int is 0. */
555 # define XFASTINT(a) ((a).i + 0)
556 # define XSETFASTINT(a, b) ((a).i = (b))
558 # define XSET(var, vartype, ptr) \
559 (((var).s.val = ((intptr_t) (ptr))), ((var).s.type = ((char) (vartype))))
562 /* DATA_SEG_BITS forces extra bits to be or'd in with any pointers
563 which were stored in a Lisp_Object */
564 #define XPNTR(a) ((intptr_t) (XUINT (a) | DATA_SEG_BITS))
566 #define XPNTR(a) ((intptr_t) XUINT (a))
569 #endif /* !USE_LSB_TAG */
571 #if __GNUC__ >= 2 && defined (__OPTIMIZE__)
572 #define make_number(N) \
573 (__extension__ ({ Lisp_Object _l; _l.s.val = (N); _l.s.type = Lisp_Int; _l; }))
575 extern Lisp_Object
make_number (EMACS_INT
);
578 #endif /* USE_LISP_UNION_TYPE */
580 /* For integers known to be positive, XFASTINT sometimes provides
581 faster retrieval and XSETFASTINT provides faster storage.
582 If not, fallback on the non-accelerated path. */
584 # define XFASTINT(a) (XINT (a))
585 # define XSETFASTINT(a, b) (XSETINT (a, b))
588 #define EQ(x, y) (XHASH (x) == XHASH (y))
590 /* Number of bits in a fixnum, including the sign bit. */
591 #ifdef USE_2_TAGS_FOR_INTS
592 # define FIXNUM_BITS (VALBITS + 1)
594 # define FIXNUM_BITS VALBITS
597 /* Mask indicating the significant bits of a fixnum. */
598 #define INTMASK (((EMACS_INT) 1 << FIXNUM_BITS) - 1)
600 /* Largest and smallest representable fixnum values. These are the C
602 #define MOST_POSITIVE_FIXNUM (INTMASK / 2)
603 #define MOST_NEGATIVE_FIXNUM (-1 - MOST_POSITIVE_FIXNUM)
605 /* Value is non-zero if I doesn't fit into a Lisp fixnum. It is
606 written this way so that it also works if I is of unsigned
607 type or if I is a NaN. */
609 #define FIXNUM_OVERFLOW_P(i) \
610 (! ((0 <= (i) || MOST_NEGATIVE_FIXNUM <= (i)) && (i) <= MOST_POSITIVE_FIXNUM))
612 /* Extract a value or address from a Lisp_Object. */
614 #define XCONS(a) (eassert (CONSP (a)), (struct Lisp_Cons *) XPNTR (a))
615 #define XVECTOR(a) (eassert (VECTORLIKEP (a)), (struct Lisp_Vector *) XPNTR (a))
616 #define XSTRING(a) (eassert (STRINGP (a)), (struct Lisp_String *) XPNTR (a))
617 #define XSYMBOL(a) (eassert (SYMBOLP (a)), (struct Lisp_Symbol *) XPNTR (a))
618 #define XFLOAT(a) (eassert (FLOATP (a)), (struct Lisp_Float *) XPNTR (a))
622 #define XMISC(a) ((union Lisp_Misc *) XPNTR (a))
623 #define XMISCANY(a) (eassert (MISCP (a)), &(XMISC (a)->u_any))
624 #define XMISCTYPE(a) (XMISCANY (a)->type)
625 #define XMARKER(a) (eassert (MARKERP (a)), &(XMISC (a)->u_marker))
626 #define XOVERLAY(a) (eassert (OVERLAYP (a)), &(XMISC (a)->u_overlay))
627 #define XSAVE_VALUE(a) (eassert (SAVE_VALUEP (a)), &(XMISC (a)->u_save_value))
629 /* Forwarding object types. */
631 #define XFWDTYPE(a) (a->u_intfwd.type)
632 #define XINTFWD(a) (eassert (INTFWDP (a)), &((a)->u_intfwd))
633 #define XBOOLFWD(a) (eassert (BOOLFWDP (a)), &((a)->u_boolfwd))
634 #define XOBJFWD(a) (eassert (OBJFWDP (a)), &((a)->u_objfwd))
635 #define XBUFFER_OBJFWD(a) \
636 (eassert (BUFFER_OBJFWDP (a)), &((a)->u_buffer_objfwd))
637 #define XKBOARD_OBJFWD(a) \
638 (eassert (KBOARD_OBJFWDP (a)), &((a)->u_kboard_objfwd))
640 /* Pseudovector types. */
642 #define XPROCESS(a) (eassert (PROCESSP (a)), (struct Lisp_Process *) XPNTR (a))
643 #define XWINDOW(a) (eassert (WINDOWP (a)), (struct window *) XPNTR (a))
644 #define XTERMINAL(a) (eassert (TERMINALP (a)), (struct terminal *) XPNTR (a))
645 #define XSUBR(a) (eassert (SUBRP (a)), (struct Lisp_Subr *) XPNTR (a))
646 #define XBUFFER(a) (eassert (BUFFERP (a)), (struct buffer *) XPNTR (a))
647 #define XCHAR_TABLE(a) (eassert (CHAR_TABLE_P (a)), (struct Lisp_Char_Table *) XPNTR (a))
648 #define XSUB_CHAR_TABLE(a) (eassert (SUB_CHAR_TABLE_P (a)), (struct Lisp_Sub_Char_Table *) XPNTR (a))
649 #define XBOOL_VECTOR(a) (eassert (BOOL_VECTOR_P (a)), (struct Lisp_Bool_Vector *) XPNTR (a))
651 /* Construct a Lisp_Object from a value or address. */
653 #define XSETINT(a, b) (a) = make_number (b)
654 #define XSETCONS(a, b) XSET (a, Lisp_Cons, b)
655 #define XSETVECTOR(a, b) XSET (a, Lisp_Vectorlike, b)
656 #define XSETSTRING(a, b) XSET (a, Lisp_String, b)
657 #define XSETSYMBOL(a, b) XSET (a, Lisp_Symbol, b)
658 #define XSETFLOAT(a, b) XSET (a, Lisp_Float, b)
662 #define XSETMISC(a, b) XSET (a, Lisp_Misc, b)
663 #define XSETMARKER(a, b) (XSETMISC (a, b), XMISCTYPE (a) = Lisp_Misc_Marker)
665 /* Pseudovector types. */
667 #define XSETPVECTYPE(v, code) XSETTYPED_PVECTYPE (v, header.size, code)
668 #define XSETTYPED_PVECTYPE(v, size_member, code) \
669 ((v)->size_member |= PSEUDOVECTOR_FLAG | (code))
670 #define XSETPVECTYPESIZE(v, code, sizeval) \
671 ((v)->header.size = PSEUDOVECTOR_FLAG | (code) | (sizeval))
673 /* The cast to struct vectorlike_header * avoids aliasing issues. */
674 #define XSETPSEUDOVECTOR(a, b, code) \
675 XSETTYPED_PSEUDOVECTOR(a, b, \
676 ((struct vectorlike_header *) XPNTR (a))->size, \
678 #define XSETTYPED_PSEUDOVECTOR(a, b, size, code) \
679 (XSETVECTOR (a, b), \
680 eassert ((size & (PSEUDOVECTOR_FLAG | PVEC_TYPE_MASK)) \
681 == (PSEUDOVECTOR_FLAG | (code))))
683 #define XSETWINDOW_CONFIGURATION(a, b) \
684 (XSETPSEUDOVECTOR (a, b, PVEC_WINDOW_CONFIGURATION))
685 #define XSETPROCESS(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_PROCESS))
686 #define XSETWINDOW(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_WINDOW))
687 #define XSETTERMINAL(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_TERMINAL))
688 /* XSETSUBR is special since Lisp_Subr lacks struct vectorlike_header. */
689 #define XSETSUBR(a, b) \
690 XSETTYPED_PSEUDOVECTOR (a, b, XSUBR (a)->size, PVEC_SUBR)
691 #define XSETCOMPILED(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_COMPILED))
692 #define XSETBUFFER(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_BUFFER))
693 #define XSETCHAR_TABLE(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_CHAR_TABLE))
694 #define XSETBOOL_VECTOR(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_BOOL_VECTOR))
695 #define XSETSUB_CHAR_TABLE(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_SUB_CHAR_TABLE))
697 /* Convenience macros for dealing with Lisp arrays. */
699 #define AREF(ARRAY, IDX) XVECTOR ((ARRAY))->contents[IDX]
700 #define ASIZE(ARRAY) XVECTOR ((ARRAY))->header.size
701 /* The IDX==IDX tries to detect when the macro argument is side-effecting. */
702 #define ASET(ARRAY, IDX, VAL) \
703 (eassert ((IDX) == (IDX)), \
704 eassert ((IDX) >= 0 && (IDX) < ASIZE (ARRAY)), \
705 AREF ((ARRAY), (IDX)) = (VAL))
707 /* Convenience macros for dealing with Lisp strings. */
709 #define SDATA(string) (XSTRING (string)->data + 0)
710 #define SREF(string, index) (SDATA (string)[index] + 0)
711 #define SSET(string, index, new) (SDATA (string)[index] = (new))
712 #define SCHARS(string) (XSTRING (string)->size + 0)
713 #define SBYTES(string) (STRING_BYTES (XSTRING (string)) + 0)
715 /* Avoid "differ in sign" warnings. */
716 #define SSDATA(x) ((char *) SDATA (x))
718 #define STRING_SET_CHARS(string, newsize) \
719 (XSTRING (string)->size = (newsize))
721 #define STRING_COPYIN(string, index, new, count) \
722 memcpy (SDATA (string) + index, new, count)
726 #define CHECK_TYPE(ok, Qxxxp, x) \
727 do { if (!(ok)) wrong_type_argument (Qxxxp, (x)); } while (0)
731 /* See the macros in intervals.h. */
733 typedef struct interval
*INTERVAL
;
735 /* Complain if object is not string or buffer type */
736 #define CHECK_STRING_OR_BUFFER(x) \
737 CHECK_TYPE (STRINGP (x) || BUFFERP (x), Qbuffer_or_string_p, x)
740 /* In a cons, the markbit of the car is the gc mark bit */
744 /* Please do not use the names of these elements in code other
745 than the core lisp implementation. Use XCAR and XCDR below. */
746 #ifdef HIDE_LISP_IMPLEMENTATION
751 struct Lisp_Cons
*chain
;
758 struct Lisp_Cons
*chain
;
763 /* Take the car or cdr of something known to be a cons cell. */
764 /* The _AS_LVALUE macros shouldn't be used outside of the minimal set
765 of code that has to know what a cons cell looks like. Other code not
766 part of the basic lisp implementation should assume that the car and cdr
767 fields are not accessible as lvalues. (What if we want to switch to
768 a copying collector someday? Cached cons cell field addresses may be
769 invalidated at arbitrary points.) */
770 #ifdef HIDE_LISP_IMPLEMENTATION
771 #define XCAR_AS_LVALUE(c) (XCONS ((c))->car_)
772 #define XCDR_AS_LVALUE(c) (XCONS ((c))->u.cdr_)
774 #define XCAR_AS_LVALUE(c) (XCONS ((c))->car)
775 #define XCDR_AS_LVALUE(c) (XCONS ((c))->u.cdr)
778 /* Use these from normal code. */
779 #define XCAR(c) LISP_MAKE_RVALUE (XCAR_AS_LVALUE (c))
780 #define XCDR(c) LISP_MAKE_RVALUE (XCDR_AS_LVALUE (c))
782 /* Use these to set the fields of a cons cell.
784 Note that both arguments may refer to the same object, so 'n'
785 should not be read after 'c' is first modified. Also, neither
786 argument should be evaluated more than once; side effects are
787 especially common in the second argument. */
788 #define XSETCAR(c,n) (XCAR_AS_LVALUE (c) = (n))
789 #define XSETCDR(c,n) (XCDR_AS_LVALUE (c) = (n))
791 /* Take the car or cdr of something whose type is not known. */
793 (CONSP ((c)) ? XCAR ((c)) \
794 : NILP ((c)) ? Qnil \
795 : wrong_type_argument (Qlistp, (c)))
798 (CONSP ((c)) ? XCDR ((c)) \
799 : NILP ((c)) ? Qnil \
800 : wrong_type_argument (Qlistp, (c)))
802 /* Take the car or cdr of something whose type is not known. */
803 #define CAR_SAFE(c) \
804 (CONSP ((c)) ? XCAR ((c)) : Qnil)
806 #define CDR_SAFE(c) \
807 (CONSP ((c)) ? XCDR ((c)) : Qnil)
809 /* Nonzero if STR is a multibyte string. */
810 #define STRING_MULTIBYTE(STR) \
811 (XSTRING (STR)->size_byte >= 0)
813 /* Return the length in bytes of STR. */
815 #ifdef GC_CHECK_STRING_BYTES
818 extern EMACS_INT
string_bytes (struct Lisp_String
*);
819 #define STRING_BYTES(S) string_bytes ((S))
821 #else /* not GC_CHECK_STRING_BYTES */
823 #define STRING_BYTES(STR) \
824 ((STR)->size_byte < 0 ? (STR)->size : (STR)->size_byte)
826 #endif /* not GC_CHECK_STRING_BYTES */
828 /* An upper bound on the number of bytes in a Lisp string, not
829 counting the terminating null. This a tight enough bound to
830 prevent integer overflow errors that would otherwise occur during
831 string size calculations. A string cannot contain more bytes than
832 a fixnum can represent, nor can it be so long that C pointer
833 arithmetic stops working on the string plus its terminating null.
834 Although the actual size limit (see STRING_BYTES_MAX in alloc.c)
835 may be a bit smaller than STRING_BYTES_BOUND, calculating it here
836 would expose alloc.c internal details that we'd rather keep
837 private. The cast to ptrdiff_t ensures that STRING_BYTES_BOUND is
839 #define STRING_BYTES_BOUND \
840 min (MOST_POSITIVE_FIXNUM, (ptrdiff_t) min (SIZE_MAX, PTRDIFF_MAX) - 1)
842 /* Mark STR as a unibyte string. */
843 #define STRING_SET_UNIBYTE(STR) \
844 do { if (EQ (STR, empty_multibyte_string)) \
845 (STR) = empty_unibyte_string; \
846 else XSTRING (STR)->size_byte = -1; } while (0)
848 /* Mark STR as a multibyte string. Assure that STR contains only
849 ASCII characters in advance. */
850 #define STRING_SET_MULTIBYTE(STR) \
851 do { if (EQ (STR, empty_unibyte_string)) \
852 (STR) = empty_multibyte_string; \
853 else XSTRING (STR)->size_byte = XSTRING (STR)->size; } while (0)
855 /* Get text properties. */
856 #define STRING_INTERVALS(STR) (XSTRING (STR)->intervals + 0)
858 /* Set text properties. */
859 #define STRING_SET_INTERVALS(STR, INT) (XSTRING (STR)->intervals = (INT))
861 /* In a string or vector, the sign bit of the `size' is the gc mark bit */
867 INTERVAL intervals
; /* text properties in this string */
871 /* Header of vector-like objects. This documents the layout constraints on
872 vectors and pseudovectors other than struct Lisp_Subr. It also prevents
873 compilers from being fooled by Emacs's type punning: the XSETPSEUDOVECTOR
874 and PSEUDOVECTORP macros cast their pointers to struct vectorlike_header *,
875 because when two such pointers potentially alias, a compiler won't
876 incorrectly reorder loads and stores to their size fields. See
877 <http://debbugs.gnu.org/cgi/bugreport.cgi?bug=8546>. */
878 struct vectorlike_header
882 /* Pointer to the next vector-like object. It is generally a buffer or a
883 Lisp_Vector alias, so for convenience it is a union instead of a
884 pointer: this way, one can write P->next.vector instead of ((struct
885 Lisp_Vector *) P->next). */
887 struct buffer
*buffer
;
888 struct Lisp_Vector
*vector
;
894 struct vectorlike_header header
;
895 Lisp_Object contents
[1];
898 /* If a struct is made to look like a vector, this macro returns the length
899 of the shortest vector that would hold that struct. */
900 #define VECSIZE(type) ((sizeof (type) \
901 - offsetof (struct Lisp_Vector, contents[0]) \
902 + sizeof (Lisp_Object) - 1) /* round up */ \
903 / sizeof (Lisp_Object))
905 /* Like VECSIZE, but used when the pseudo-vector has non-Lisp_Object fields
906 at the end and we need to compute the number of Lisp_Object fields (the
907 ones that the GC needs to trace). */
908 #define PSEUDOVECSIZE(type, nonlispfield) \
909 ((offsetof (type, nonlispfield) - offsetof (struct Lisp_Vector, contents[0])) \
910 / sizeof (Lisp_Object))
912 /* A char-table is a kind of vectorlike, with contents are like a
913 vector but with a few other slots. For some purposes, it makes
914 sense to handle a char-table with type struct Lisp_Vector. An
915 element of a char table can be any Lisp objects, but if it is a sub
916 char-table, we treat it a table that contains information of a
917 specific range of characters. A sub char-table has the same
918 structure as a vector. A sub char table appears only in an element
919 of a char-table, and there's no way to access it directly from
920 Emacs Lisp program. */
922 /* This is the number of slots that every char table must have. This
923 counts the ordinary slots and the top, defalt, parent, and purpose
925 #define CHAR_TABLE_STANDARD_SLOTS (VECSIZE (struct Lisp_Char_Table) - 1)
927 /* Return the number of "extra" slots in the char table CT. */
929 #define CHAR_TABLE_EXTRA_SLOTS(CT) \
930 (((CT)->header.size & PSEUDOVECTOR_SIZE_MASK) - CHAR_TABLE_STANDARD_SLOTS)
934 #define CHAR_TABLE_REF_ASCII(CT, IDX) \
935 ({struct Lisp_Char_Table *_tbl = NULL; \
938 _tbl = _tbl ? XCHAR_TABLE (_tbl->parent) : XCHAR_TABLE (CT); \
939 _val = (! SUB_CHAR_TABLE_P (_tbl->ascii) ? _tbl->ascii \
940 : XSUB_CHAR_TABLE (_tbl->ascii)->contents[IDX]); \
942 _val = _tbl->defalt; \
943 } while (NILP (_val) && ! NILP (_tbl->parent)); \
946 #else /* not __GNUC__ */
948 #define CHAR_TABLE_REF_ASCII(CT, IDX) \
949 (! NILP (XCHAR_TABLE (CT)->ascii) \
950 ? (! SUB_CHAR_TABLE_P (XCHAR_TABLE (CT)->ascii) \
951 ? XCHAR_TABLE (CT)->ascii \
952 : ! NILP (XSUB_CHAR_TABLE (XCHAR_TABLE (CT)->ascii)->contents[IDX]) \
953 ? XSUB_CHAR_TABLE (XCHAR_TABLE (CT)->ascii)->contents[IDX] \
954 : char_table_ref ((CT), (IDX))) \
955 : char_table_ref ((CT), (IDX)))
957 #endif /* not __GNUC__ */
959 /* Compute A OP B, using the unsigned comparison operator OP. A and B
960 should be integer expressions. This is not the same as
961 mathematical comparison; for example, UNSIGNED_CMP (0, <, -1)
962 returns 1. For efficiency, prefer plain unsigned comparison if A
963 and B's sizes both fit (after integer promotion). */
964 #define UNSIGNED_CMP(a, op, b) \
965 (max (sizeof ((a) + 0), sizeof ((b) + 0)) <= sizeof (unsigned) \
966 ? ((a) + (unsigned) 0) op ((b) + (unsigned) 0) \
967 : ((a) + (uintmax_t) 0) op ((b) + (uintmax_t) 0))
969 /* Nonzero iff C is an ASCII character. */
970 #define ASCII_CHAR_P(c) UNSIGNED_CMP (c, <, 0x80)
972 /* Almost equivalent to Faref (CT, IDX) with optimization for ASCII
973 characters. Do not check validity of CT. */
974 #define CHAR_TABLE_REF(CT, IDX) \
975 (ASCII_CHAR_P (IDX) ? CHAR_TABLE_REF_ASCII ((CT), (IDX)) \
976 : char_table_ref ((CT), (IDX)))
978 /* Almost equivalent to Faref (CT, IDX). However, if the result is
979 not a character, return IDX.
981 For these characters, do not check validity of CT
982 and do not follow parent. */
983 #define CHAR_TABLE_TRANSLATE(CT, IDX) \
984 char_table_translate (CT, IDX)
986 /* Equivalent to Faset (CT, IDX, VAL) with optimization for ASCII and
987 8-bit European characters. Do not check validity of CT. */
988 #define CHAR_TABLE_SET(CT, IDX, VAL) \
989 (ASCII_CHAR_P (IDX) && SUB_CHAR_TABLE_P (XCHAR_TABLE (CT)->ascii) \
990 ? XSUB_CHAR_TABLE (XCHAR_TABLE (CT)->ascii)->contents[IDX] = VAL \
991 : char_table_set (CT, IDX, VAL))
993 #define CHARTAB_SIZE_BITS_0 6
994 #define CHARTAB_SIZE_BITS_1 4
995 #define CHARTAB_SIZE_BITS_2 5
996 #define CHARTAB_SIZE_BITS_3 7
998 extern const int chartab_size
[4];
1000 struct Lisp_Sub_Char_Table
;
1002 struct Lisp_Char_Table
1004 /* HEADER.SIZE is the vector's size field, which also holds the
1005 pseudovector type information. It holds the size, too.
1006 The size counts the defalt, parent, purpose, ascii,
1007 contents, and extras slots. */
1008 struct vectorlike_header header
;
1010 /* This holds a default value,
1011 which is used whenever the value for a specific character is nil. */
1014 /* This points to another char table, which we inherit from when the
1015 value for a specific character is nil. The `defalt' slot takes
1016 precedence over this. */
1019 /* This is a symbol which says what kind of use this char-table is
1021 Lisp_Object purpose
;
1023 /* The bottom sub char-table for characters of the range 0..127. It
1024 is nil if none of ASCII character has a specific value. */
1027 Lisp_Object contents
[(1 << CHARTAB_SIZE_BITS_0
)];
1029 /* These hold additional data. It is a vector. */
1030 Lisp_Object extras
[1];
1033 struct Lisp_Sub_Char_Table
1035 /* HEADER.SIZE is the vector's size field, which also holds the
1036 pseudovector type information. It holds the size, too. */
1037 struct vectorlike_header header
;
1039 /* Depth of this sub char-table. It should be 1, 2, or 3. A sub
1040 char-table of depth 1 contains 16 elements, and each element
1041 covers 4096 (128*32) characters. A sub char-table of depth 2
1042 contains 32 elements, and each element covers 128 characters. A
1043 sub char-table of depth 3 contains 128 elements, and each element
1044 is for one character. */
1047 /* Minimum character covered by the sub char-table. */
1048 Lisp_Object min_char
;
1050 Lisp_Object contents
[1];
1053 /* A boolvector is a kind of vectorlike, with contents are like a string. */
1054 struct Lisp_Bool_Vector
1056 /* HEADER.SIZE is the vector's size field. It doesn't have the real size,
1057 just the subtype information. */
1058 struct vectorlike_header header
;
1059 /* This is the size in bits. */
1061 /* This contains the actual bits, packed into bytes. */
1062 unsigned char data
[1];
1065 /* This structure describes a built-in function.
1066 It is generated by the DEFUN macro only.
1067 defsubr makes it into a Lisp object.
1069 This type is treated in most respects as a pseudovector,
1070 but since we never dynamically allocate or free them,
1071 we don't need a struct vectorlike_header and its 'next' field. */
1077 Lisp_Object (*a0
) (void);
1078 Lisp_Object (*a1
) (Lisp_Object
);
1079 Lisp_Object (*a2
) (Lisp_Object
, Lisp_Object
);
1080 Lisp_Object (*a3
) (Lisp_Object
, Lisp_Object
, Lisp_Object
);
1081 Lisp_Object (*a4
) (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
1082 Lisp_Object (*a5
) (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
1083 Lisp_Object (*a6
) (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
1084 Lisp_Object (*a7
) (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
1085 Lisp_Object (*a8
) (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
1086 Lisp_Object (*aUNEVALLED
) (Lisp_Object args
);
1087 Lisp_Object (*aMANY
) (ptrdiff_t, Lisp_Object
*);
1089 short min_args
, max_args
;
1090 const char *symbol_name
;
1091 const char *intspec
;
1096 /***********************************************************************
1098 ***********************************************************************/
1100 /* Interned state of a symbol. */
1102 enum symbol_interned
1104 SYMBOL_UNINTERNED
= 0,
1105 SYMBOL_INTERNED
= 1,
1106 SYMBOL_INTERNED_IN_INITIAL_OBARRAY
= 2
1109 enum symbol_redirect
1111 SYMBOL_PLAINVAL
= 4,
1112 SYMBOL_VARALIAS
= 1,
1113 SYMBOL_LOCALIZED
= 2,
1114 SYMBOL_FORWARDED
= 3
1119 unsigned gcmarkbit
: 1;
1121 /* Indicates where the value can be found:
1122 0 : it's a plain var, the value is in the `value' field.
1123 1 : it's a varalias, the value is really in the `alias' symbol.
1124 2 : it's a localized var, the value is in the `blv' object.
1125 3 : it's a forwarding variable, the value is in `forward'. */
1126 ENUM_BF (symbol_redirect
) redirect
: 3;
1128 /* Non-zero means symbol is constant, i.e. changing its value
1129 should signal an error. If the value is 3, then the var
1130 can be changed, but only by `defconst'. */
1131 unsigned constant
: 2;
1133 /* Interned state of the symbol. This is an enumerator from
1134 enum symbol_interned. */
1135 unsigned interned
: 2;
1137 /* Non-zero means that this variable has been explicitly declared
1138 special (with `defvar' etc), and shouldn't be lexically bound. */
1139 unsigned declared_special
: 1;
1141 unsigned spacer
: 23;
1143 /* The symbol's name, as a Lisp string.
1144 The name "xname" is used to intentionally break code referring to
1145 the old field "name" of type pointer to struct Lisp_String. */
1148 /* Value of the symbol or Qunbound if unbound. Which alternative of the
1149 union is used depends on the `redirect' field above. */
1152 struct Lisp_Symbol
*alias
;
1153 struct Lisp_Buffer_Local_Value
*blv
;
1154 union Lisp_Fwd
*fwd
;
1157 /* Function value of the symbol or Qunbound if not fboundp. */
1158 Lisp_Object function
;
1160 /* The symbol's property list. */
1163 /* Next symbol in obarray bucket, if the symbol is interned. */
1164 struct Lisp_Symbol
*next
;
1167 /* Value is name of symbol. */
1169 #define SYMBOL_VAL(sym) \
1170 (eassert ((sym)->redirect == SYMBOL_PLAINVAL), (sym)->val.value)
1171 #define SYMBOL_ALIAS(sym) \
1172 (eassert ((sym)->redirect == SYMBOL_VARALIAS), (sym)->val.alias)
1173 #define SYMBOL_BLV(sym) \
1174 (eassert ((sym)->redirect == SYMBOL_LOCALIZED), (sym)->val.blv)
1175 #define SYMBOL_FWD(sym) \
1176 (eassert ((sym)->redirect == SYMBOL_FORWARDED), (sym)->val.fwd)
1177 #define SET_SYMBOL_VAL(sym, v) \
1178 (eassert ((sym)->redirect == SYMBOL_PLAINVAL), (sym)->val.value = (v))
1179 #define SET_SYMBOL_ALIAS(sym, v) \
1180 (eassert ((sym)->redirect == SYMBOL_VARALIAS), (sym)->val.alias = (v))
1181 #define SET_SYMBOL_BLV(sym, v) \
1182 (eassert ((sym)->redirect == SYMBOL_LOCALIZED), (sym)->val.blv = (v))
1183 #define SET_SYMBOL_FWD(sym, v) \
1184 (eassert ((sym)->redirect == SYMBOL_FORWARDED), (sym)->val.fwd = (v))
1186 #define SYMBOL_NAME(sym) \
1187 LISP_MAKE_RVALUE (XSYMBOL (sym)->xname)
1189 /* Value is non-zero if SYM is an interned symbol. */
1191 #define SYMBOL_INTERNED_P(sym) \
1192 (XSYMBOL (sym)->interned != SYMBOL_UNINTERNED)
1194 /* Value is non-zero if SYM is interned in initial_obarray. */
1196 #define SYMBOL_INTERNED_IN_INITIAL_OBARRAY_P(sym) \
1197 (XSYMBOL (sym)->interned == SYMBOL_INTERNED_IN_INITIAL_OBARRAY)
1199 /* Value is non-zero if symbol is considered a constant, i.e. its
1200 value cannot be changed (there is an exception for keyword symbols,
1201 whose value can be set to the keyword symbol itself). */
1203 #define SYMBOL_CONSTANT_P(sym) XSYMBOL (sym)->constant
1205 #define DEFSYM(sym, name) \
1206 do { (sym) = intern_c_string ((name)); staticpro (&(sym)); } while (0)
1209 /***********************************************************************
1211 ***********************************************************************/
1213 /* The structure of a Lisp hash table. */
1215 struct Lisp_Hash_Table
1217 /* This is for Lisp; the hash table code does not refer to it. */
1218 struct vectorlike_header header
;
1220 /* Function used to compare keys. */
1223 /* Nil if table is non-weak. Otherwise a symbol describing the
1224 weakness of the table. */
1227 /* When the table is resized, and this is an integer, compute the
1228 new size by adding this to the old size. If a float, compute the
1229 new size by multiplying the old size with this factor. */
1230 Lisp_Object rehash_size
;
1232 /* Resize hash table when number of entries/ table size is >= this
1234 Lisp_Object rehash_threshold
;
1236 /* Vector of hash codes.. If hash[I] is nil, this means that that
1237 entry I is unused. */
1240 /* Vector used to chain entries. If entry I is free, next[I] is the
1241 entry number of the next free item. If entry I is non-free,
1242 next[I] is the index of the next entry in the collision chain. */
1245 /* Index of first free entry in free list. */
1246 Lisp_Object next_free
;
1248 /* Bucket vector. A non-nil entry is the index of the first item in
1249 a collision chain. This vector's size can be larger than the
1250 hash table size to reduce collisions. */
1253 /* User-supplied hash function, or nil. */
1254 Lisp_Object user_hash_function
;
1256 /* User-supplied key comparison function, or nil. */
1257 Lisp_Object user_cmp_function
;
1259 /* Only the fields above are traced normally by the GC. The ones below
1260 `count' are special and are either ignored by the GC or traced in
1261 a special way (e.g. because of weakness). */
1263 /* Number of key/value entries in the table. */
1266 /* Vector of keys and values. The key of item I is found at index
1267 2 * I, the value is found at index 2 * I + 1.
1268 This is gc_marked specially if the table is weak. */
1269 Lisp_Object key_and_value
;
1271 /* Next weak hash table if this is a weak hash table. The head
1272 of the list is in weak_hash_tables. */
1273 struct Lisp_Hash_Table
*next_weak
;
1275 /* C function to compare two keys. */
1276 int (*cmpfn
) (struct Lisp_Hash_Table
*,
1277 Lisp_Object
, EMACS_UINT
,
1278 Lisp_Object
, EMACS_UINT
);
1280 /* C function to compute hash code. */
1281 EMACS_UINT (*hashfn
) (struct Lisp_Hash_Table
*, Lisp_Object
);
1285 #define XHASH_TABLE(OBJ) \
1286 ((struct Lisp_Hash_Table *) XPNTR (OBJ))
1288 #define XSET_HASH_TABLE(VAR, PTR) \
1289 (XSETPSEUDOVECTOR (VAR, PTR, PVEC_HASH_TABLE))
1291 #define HASH_TABLE_P(OBJ) PSEUDOVECTORP (OBJ, PVEC_HASH_TABLE)
1293 #define CHECK_HASH_TABLE(x) \
1294 CHECK_TYPE (HASH_TABLE_P (x), Qhash_table_p, x)
1296 /* Value is the key part of entry IDX in hash table H. */
1298 #define HASH_KEY(H, IDX) AREF ((H)->key_and_value, 2 * (IDX))
1300 /* Value is the value part of entry IDX in hash table H. */
1302 #define HASH_VALUE(H, IDX) AREF ((H)->key_and_value, 2 * (IDX) + 1)
1304 /* Value is the index of the next entry following the one at IDX
1307 #define HASH_NEXT(H, IDX) AREF ((H)->next, (IDX))
1309 /* Value is the hash code computed for entry IDX in hash table H. */
1311 #define HASH_HASH(H, IDX) AREF ((H)->hash, (IDX))
1313 /* Value is the index of the element in hash table H that is the
1314 start of the collision list at index IDX in the index vector of H. */
1316 #define HASH_INDEX(H, IDX) AREF ((H)->index, (IDX))
1318 /* Value is the size of hash table H. */
1320 #define HASH_TABLE_SIZE(H) ASIZE ((H)->next)
1322 /* Default size for hash tables if not specified. */
1324 #define DEFAULT_HASH_SIZE 65
1326 /* Default threshold specifying when to resize a hash table. The
1327 value gives the ratio of current entries in the hash table and the
1328 size of the hash table. */
1330 #define DEFAULT_REHASH_THRESHOLD 0.8
1332 /* Default factor by which to increase the size of a hash table. */
1334 #define DEFAULT_REHASH_SIZE 1.5
1337 /* These structures are used for various misc types. */
1339 struct Lisp_Misc_Any
/* Supertype of all Misc types. */
1341 ENUM_BF (Lisp_Misc_Type
) type
: 16; /* = Lisp_Misc_??? */
1342 unsigned gcmarkbit
: 1;
1344 /* Make it as long as "Lisp_Free without padding". */
1350 ENUM_BF (Lisp_Misc_Type
) type
: 16; /* = Lisp_Misc_Marker */
1351 unsigned gcmarkbit
: 1;
1353 /* This flag is temporarily used in the functions
1354 decode/encode_coding_object to record that the marker position
1355 must be adjusted after the conversion. */
1356 unsigned int need_adjustment
: 1;
1357 /* 1 means normal insertion at the marker's position
1358 leaves the marker after the inserted text. */
1359 unsigned int insertion_type
: 1;
1360 /* This is the buffer that the marker points into, or 0 if it points nowhere.
1361 Note: a chain of markers can contain markers pointing into different
1362 buffers (the chain is per buffer_text rather than per buffer, so it's
1363 shared between indirect buffers). */
1364 /* This is used for (other than NULL-checking):
1366 - Fset_marker: check eq(oldbuf, newbuf) to avoid unchain+rechain.
1367 - unchain_marker: to find the list from which to unchain.
1368 - Fkill_buffer: to only unchain the markers of current indirect buffer.
1370 struct buffer
*buffer
;
1372 /* The remaining fields are meaningless in a marker that
1373 does not point anywhere. */
1375 /* For markers that point somewhere,
1376 this is used to chain of all the markers in a given buffer. */
1377 /* We could remove it and use an array in buffer_text instead.
1378 That would also allow to preserve it ordered. */
1379 struct Lisp_Marker
*next
;
1380 /* This is the char position where the marker points. */
1382 /* This is the byte position.
1383 It's mostly used as a charpos<->bytepos cache (i.e. it's not directly
1384 used to implement the functionality of markers, but rather to (ab)use
1385 markers as a cache for char<->byte mappings). */
1389 /* Forwarding pointer to an int variable.
1390 This is allowed only in the value cell of a symbol,
1391 and it means that the symbol's value really lives in the
1392 specified int variable. */
1395 enum Lisp_Fwd_Type type
; /* = Lisp_Fwd_Int */
1399 /* Boolean forwarding pointer to an int variable.
1400 This is like Lisp_Intfwd except that the ostensible
1401 "value" of the symbol is t if the int variable is nonzero,
1402 nil if it is zero. */
1405 enum Lisp_Fwd_Type type
; /* = Lisp_Fwd_Bool */
1409 /* Forwarding pointer to a Lisp_Object variable.
1410 This is allowed only in the value cell of a symbol,
1411 and it means that the symbol's value really lives in the
1412 specified variable. */
1415 enum Lisp_Fwd_Type type
; /* = Lisp_Fwd_Obj */
1416 Lisp_Object
*objvar
;
1419 /* Like Lisp_Objfwd except that value lives in a slot in the
1420 current buffer. Value is byte index of slot within buffer. */
1421 struct Lisp_Buffer_Objfwd
1423 enum Lisp_Fwd_Type type
; /* = Lisp_Fwd_Buffer_Obj */
1425 Lisp_Object slottype
; /* Qnil, Lisp_Int, Lisp_Symbol, or Lisp_String. */
1428 /* struct Lisp_Buffer_Local_Value is used in a symbol value cell when
1429 the symbol has buffer-local or frame-local bindings. (Exception:
1430 some buffer-local variables are built-in, with their values stored
1431 in the buffer structure itself. They are handled differently,
1432 using struct Lisp_Buffer_Objfwd.)
1434 The `realvalue' slot holds the variable's current value, or a
1435 forwarding pointer to where that value is kept. This value is the
1436 one that corresponds to the loaded binding. To read or set the
1437 variable, you must first make sure the right binding is loaded;
1438 then you can access the value in (or through) `realvalue'.
1440 `buffer' and `frame' are the buffer and frame for which the loaded
1441 binding was found. If those have changed, to make sure the right
1442 binding is loaded it is necessary to find which binding goes with
1443 the current buffer and selected frame, then load it. To load it,
1444 first unload the previous binding, then copy the value of the new
1445 binding into `realvalue' (or through it). Also update
1446 LOADED-BINDING to point to the newly loaded binding.
1448 `local_if_set' indicates that merely setting the variable creates a
1449 local binding for the current buffer. Otherwise the latter, setting
1450 the variable does not do that; only make-local-variable does that. */
1452 struct Lisp_Buffer_Local_Value
1454 /* 1 means that merely setting the variable creates a local
1455 binding for the current buffer */
1456 unsigned int local_if_set
: 1;
1457 /* 1 means this variable can have frame-local bindings, otherwise, it is
1458 can have buffer-local bindings. The two cannot be combined. */
1459 unsigned int frame_local
: 1;
1460 /* 1 means that the binding now loaded was found.
1461 Presumably equivalent to (defcell!=valcell) */
1462 unsigned int found
: 1;
1463 /* If non-NULL, a forwarding to the C var where it should also be set. */
1464 union Lisp_Fwd
*fwd
; /* Should never be (Buffer|Kboard)_Objfwd. */
1465 /* The buffer or frame for which the loaded binding was found. */
1467 /* A cons cell that holds the default value. It has the form
1468 (SYMBOL . DEFAULT-VALUE). */
1469 Lisp_Object defcell
;
1470 /* The cons cell from `where's parameter alist.
1471 It always has the form (SYMBOL . VALUE)
1472 Note that if `forward' is non-nil, VALUE may be out of date.
1473 Also if the currently loaded binding is the default binding, then
1474 this is `eq'ual to defcell. */
1475 Lisp_Object valcell
;
1478 #define BLV_FOUND(blv) \
1479 (eassert ((blv)->found == !EQ ((blv)->defcell, (blv)->valcell)), (blv)->found)
1480 #define SET_BLV_FOUND(blv, v) \
1481 (eassert ((v) == !EQ ((blv)->defcell, (blv)->valcell)), (blv)->found = (v))
1483 #define BLV_VALUE(blv) (XCDR ((blv)->valcell))
1484 #define SET_BLV_VALUE(blv, v) (XSETCDR ((blv)->valcell, v))
1486 /* START and END are markers in the overlay's buffer, and
1487 PLIST is the overlay's property list. */
1489 /* An overlay's real data content is:
1492 - insertion type of both ends
1493 - start & start_byte
1495 - next (singly linked list of overlays).
1496 - start_next and end_next (singly linked list of markers).
1497 I.e. 9words plus 2 bits, 3words of which are for external linked lists.
1500 ENUM_BF (Lisp_Misc_Type
) type
: 16; /* = Lisp_Misc_Overlay */
1501 unsigned gcmarkbit
: 1;
1503 struct Lisp_Overlay
*next
;
1504 Lisp_Object start
, end
, plist
;
1507 /* Like Lisp_Objfwd except that value lives in a slot in the
1509 struct Lisp_Kboard_Objfwd
1511 enum Lisp_Fwd_Type type
; /* = Lisp_Fwd_Kboard_Obj */
1515 /* Hold a C pointer for later use.
1516 This type of object is used in the arg to record_unwind_protect. */
1517 struct Lisp_Save_Value
1519 ENUM_BF (Lisp_Misc_Type
) type
: 16; /* = Lisp_Misc_Save_Value */
1520 unsigned gcmarkbit
: 1;
1522 /* If DOGC is set, POINTER is the address of a memory
1523 area containing INTEGER potential Lisp_Objects. */
1524 unsigned int dogc
: 1;
1530 /* A miscellaneous object, when it's on the free list. */
1533 ENUM_BF (Lisp_Misc_Type
) type
: 16; /* = Lisp_Misc_Free */
1534 unsigned gcmarkbit
: 1;
1536 union Lisp_Misc
*chain
;
1538 /* Try to make sure that sizeof(Lisp_Misc) preserves TYPEBITS-alignment.
1539 This assumes that Lisp_Marker is the largest of the alternatives and
1540 that Lisp_Misc_Any has the same size as "Lisp_Free w/o padding". */
1541 char padding
[((((sizeof (struct Lisp_Marker
) - 1) >> GCTYPEBITS
) + 1)
1542 << GCTYPEBITS
) - sizeof (struct Lisp_Misc_Any
)];
1546 /* To get the type field of a union Lisp_Misc, use XMISCTYPE.
1547 It uses one of these struct subtypes to get the type field. */
1551 struct Lisp_Misc_Any u_any
; /* Supertype of all Misc types. */
1552 struct Lisp_Free u_free
; /* Includes padding to force alignment. */
1553 struct Lisp_Marker u_marker
; /* 5 */
1554 struct Lisp_Overlay u_overlay
; /* 5 */
1555 struct Lisp_Save_Value u_save_value
; /* 3 */
1560 struct Lisp_Intfwd u_intfwd
; /* 2 */
1561 struct Lisp_Boolfwd u_boolfwd
; /* 2 */
1562 struct Lisp_Objfwd u_objfwd
; /* 2 */
1563 struct Lisp_Buffer_Objfwd u_buffer_objfwd
; /* 2 */
1564 struct Lisp_Kboard_Objfwd u_kboard_objfwd
; /* 2 */
1567 /* Lisp floating point type */
1572 #ifdef HIDE_LISP_IMPLEMENTATION
1577 struct Lisp_Float
*chain
;
1581 #ifdef HIDE_LISP_IMPLEMENTATION
1582 #define XFLOAT_DATA(f) (0 ? XFLOAT (f)->u.data_ : XFLOAT (f)->u.data_)
1584 #define XFLOAT_DATA(f) (0 ? XFLOAT (f)->u.data : XFLOAT (f)->u.data)
1585 /* This should be used only in alloc.c, which always disables
1586 HIDE_LISP_IMPLEMENTATION. */
1587 #define XFLOAT_INIT(f,n) (XFLOAT (f)->u.data = (n))
1590 /* A character, declared with the following typedef, is a member
1591 of some character set associated with the current buffer. */
1592 #ifndef _UCHAR_T /* Protect against something in ctab.h on AIX. */
1594 typedef unsigned char UCHAR
;
1597 /* Meanings of slots in a Lisp_Compiled: */
1599 #define COMPILED_ARGLIST 0
1600 #define COMPILED_BYTECODE 1
1601 #define COMPILED_CONSTANTS 2
1602 #define COMPILED_STACK_DEPTH 3
1603 #define COMPILED_DOC_STRING 4
1604 #define COMPILED_INTERACTIVE 5
1606 /* Flag bits in a character. These also get used in termhooks.h.
1607 Richard Stallman <rms@gnu.ai.mit.edu> thinks that MULE
1608 (MUlti-Lingual Emacs) might need 22 bits for the character value
1609 itself, so we probably shouldn't use any bits lower than 0x0400000. */
1610 #define CHAR_ALT (0x0400000)
1611 #define CHAR_SUPER (0x0800000)
1612 #define CHAR_HYPER (0x1000000)
1613 #define CHAR_SHIFT (0x2000000)
1614 #define CHAR_CTL (0x4000000)
1615 #define CHAR_META (0x8000000)
1617 #define CHAR_MODIFIER_MASK \
1618 (CHAR_ALT | CHAR_SUPER | CHAR_HYPER | CHAR_SHIFT | CHAR_CTL | CHAR_META)
1621 /* Actually, the current Emacs uses 22 bits for the character value
1623 #define CHARACTERBITS 22
1626 /* The glyph datatype, used to represent characters on the display.
1627 It consists of a char code and a face id. */
1634 /* Return a glyph's character code. */
1635 #define GLYPH_CHAR(glyph) ((glyph).ch)
1637 /* Return a glyph's face ID. */
1638 #define GLYPH_FACE(glyph) ((glyph).face_id)
1640 #define SET_GLYPH_CHAR(glyph, char) ((glyph).ch = (char))
1641 #define SET_GLYPH_FACE(glyph, face) ((glyph).face_id = (face))
1642 #define SET_GLYPH(glyph, char, face) ((glyph).ch = (char), (glyph).face_id = (face))
1644 /* Return 1 if GLYPH contains valid character code. */
1645 #define GLYPH_CHAR_VALID_P(glyph) CHAR_VALID_P (GLYPH_CHAR (glyph))
1648 /* Glyph Code from a display vector may either be an integer which
1649 encodes a char code in the lower CHARACTERBITS bits and a (very small)
1650 face-id in the upper bits, or it may be a cons (CHAR . FACE-ID). */
1652 #define GLYPH_CODE_CHAR(gc) \
1653 (CONSP (gc) ? XINT (XCAR (gc)) : INTEGERP (gc) ? (XINT (gc) & ((1 << CHARACTERBITS)-1)) : 0)
1655 #define GLYPH_CODE_FACE(gc) \
1656 (CONSP (gc) ? XINT (XCDR (gc)) : INTEGERP (gc) ? (XINT (gc) >> CHARACTERBITS) : DEFAULT_FACE_ID)
1658 /* Return 1 if glyph code from display vector contains valid character code. */
1659 #define GLYPH_CODE_CHAR_VALID_P(gc) CHAR_VALID_P (GLYPH_CODE_CHAR (gc))
1661 #define GLYPH_CODE_P(gc) ((CONSP (gc) && INTEGERP (XCAR (gc)) && INTEGERP (XCDR (gc))) || INTEGERP (gc))
1663 /* Only called when GLYPH_CODE_P (gc) is true. */
1664 #define SET_GLYPH_FROM_GLYPH_CODE(glyph, gc) \
1668 SET_GLYPH (glyph, XINT (XCAR (gc)), XINT (XCDR (gc))); \
1670 SET_GLYPH (glyph, (XINT (gc) & ((1 << CHARACTERBITS)-1)), \
1671 (XINT (gc) >> CHARACTERBITS)); \
1675 /* The ID of the mode line highlighting face. */
1676 #define GLYPH_MODE_LINE_FACE 1
1678 /* Structure to hold mouse highlight data. This is here because other
1679 header files need it for defining struct x_output etc. */
1681 /* These variables describe the range of text currently shown in its
1682 mouse-face, together with the window they apply to. As long as
1683 the mouse stays within this range, we need not redraw anything on
1684 its account. Rows and columns are glyph matrix positions in
1685 MOUSE_FACE_WINDOW. */
1686 int mouse_face_beg_row
, mouse_face_beg_col
;
1687 int mouse_face_beg_x
, mouse_face_beg_y
;
1688 int mouse_face_end_row
, mouse_face_end_col
;
1689 int mouse_face_end_x
, mouse_face_end_y
;
1690 int mouse_face_past_end
;
1691 Lisp_Object mouse_face_window
;
1692 int mouse_face_face_id
;
1693 Lisp_Object mouse_face_overlay
;
1695 /* 1 if a mouse motion event came and we didn't handle it right away because
1696 gc was in progress. */
1697 int mouse_face_deferred_gc
;
1699 /* FRAME and X, Y position of mouse when last checked for
1700 highlighting. X and Y can be negative or out of range for the frame. */
1701 struct frame
*mouse_face_mouse_frame
;
1702 int mouse_face_mouse_x
, mouse_face_mouse_y
;
1704 /* Nonzero means defer mouse-motion highlighting. */
1705 int mouse_face_defer
;
1707 /* Nonzero means that the mouse highlight should not be shown. */
1708 int mouse_face_hidden
;
1710 int mouse_face_image_state
;
1713 /* Data type checking */
1715 #define NILP(x) EQ (x, Qnil)
1717 #define NUMBERP(x) (INTEGERP (x) || FLOATP (x))
1718 #define NATNUMP(x) (INTEGERP (x) && XINT (x) >= 0)
1720 #define RANGED_INTEGERP(lo, x, hi) \
1721 (INTEGERP (x) && (lo) <= XINT (x) && XINT (x) <= (hi))
1722 #define TYPE_RANGED_INTEGERP(type, x) \
1723 RANGED_INTEGERP (TYPE_MINIMUM (type), x, TYPE_MAXIMUM (type))
1725 #define INTEGERP(x) (LISP_INT_TAG_P (XTYPE ((x))))
1726 #define SYMBOLP(x) (XTYPE ((x)) == Lisp_Symbol)
1727 #define MISCP(x) (XTYPE ((x)) == Lisp_Misc)
1728 #define VECTORLIKEP(x) (XTYPE ((x)) == Lisp_Vectorlike)
1729 #define STRINGP(x) (XTYPE ((x)) == Lisp_String)
1730 #define CONSP(x) (XTYPE ((x)) == Lisp_Cons)
1732 #define FLOATP(x) (XTYPE ((x)) == Lisp_Float)
1733 #define VECTORP(x) (VECTORLIKEP (x) && !(ASIZE (x) & PSEUDOVECTOR_FLAG))
1734 #define OVERLAYP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Overlay)
1735 #define MARKERP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Marker)
1736 #define SAVE_VALUEP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Save_Value)
1738 #define INTFWDP(x) (XFWDTYPE (x) == Lisp_Fwd_Int)
1739 #define BOOLFWDP(x) (XFWDTYPE (x) == Lisp_Fwd_Bool)
1740 #define OBJFWDP(x) (XFWDTYPE (x) == Lisp_Fwd_Obj)
1741 #define BUFFER_OBJFWDP(x) (XFWDTYPE (x) == Lisp_Fwd_Buffer_Obj)
1742 #define KBOARD_OBJFWDP(x) (XFWDTYPE (x) == Lisp_Fwd_Kboard_Obj)
1744 /* True if object X is a pseudovector whose code is CODE. The cast to struct
1745 vectorlike_header * avoids aliasing issues. */
1746 #define PSEUDOVECTORP(x, code) \
1747 TYPED_PSEUDOVECTORP(x, vectorlike_header, code)
1749 /* True if object X, with internal type struct T *, is a pseudovector whose
1751 #define TYPED_PSEUDOVECTORP(x, t, code) \
1753 && (((((struct t *) XPNTR (x))->size \
1754 & (PSEUDOVECTOR_FLAG | (code)))) \
1755 == (PSEUDOVECTOR_FLAG | (code))))
1757 /* Test for specific pseudovector types. */
1758 #define WINDOW_CONFIGURATIONP(x) PSEUDOVECTORP (x, PVEC_WINDOW_CONFIGURATION)
1759 #define PROCESSP(x) PSEUDOVECTORP (x, PVEC_PROCESS)
1760 #define WINDOWP(x) PSEUDOVECTORP (x, PVEC_WINDOW)
1761 #define TERMINALP(x) PSEUDOVECTORP (x, PVEC_TERMINAL)
1762 /* SUBRP is special since Lisp_Subr lacks struct vectorlike_header. */
1763 #define SUBRP(x) TYPED_PSEUDOVECTORP (x, Lisp_Subr, PVEC_SUBR)
1764 #define COMPILEDP(x) PSEUDOVECTORP (x, PVEC_COMPILED)
1765 #define BUFFERP(x) PSEUDOVECTORP (x, PVEC_BUFFER)
1766 #define CHAR_TABLE_P(x) PSEUDOVECTORP (x, PVEC_CHAR_TABLE)
1767 #define SUB_CHAR_TABLE_P(x) PSEUDOVECTORP (x, PVEC_SUB_CHAR_TABLE)
1768 #define BOOL_VECTOR_P(x) PSEUDOVECTORP (x, PVEC_BOOL_VECTOR)
1769 #define FRAMEP(x) PSEUDOVECTORP (x, PVEC_FRAME)
1771 /* Test for image (image . spec) */
1772 #define IMAGEP(x) (CONSP (x) && EQ (XCAR (x), Qimage))
1777 (VECTORP (x) || STRINGP (x) || CHAR_TABLE_P (x) || BOOL_VECTOR_P (x))
1779 #define CHECK_LIST(x) \
1780 CHECK_TYPE (CONSP (x) || NILP (x), Qlistp, x)
1782 #define CHECK_LIST_CONS(x, y) \
1783 CHECK_TYPE (CONSP (x), Qlistp, y)
1785 #define CHECK_LIST_END(x, y) \
1786 CHECK_TYPE (NILP (x), Qlistp, y)
1788 #define CHECK_STRING(x) \
1789 CHECK_TYPE (STRINGP (x), Qstringp, x)
1791 #define CHECK_STRING_CAR(x) \
1792 CHECK_TYPE (STRINGP (XCAR (x)), Qstringp, XCAR (x))
1794 #define CHECK_CONS(x) \
1795 CHECK_TYPE (CONSP (x), Qconsp, x)
1797 #define CHECK_SYMBOL(x) \
1798 CHECK_TYPE (SYMBOLP (x), Qsymbolp, x)
1800 #define CHECK_CHAR_TABLE(x) \
1801 CHECK_TYPE (CHAR_TABLE_P (x), Qchar_table_p, x)
1803 #define CHECK_VECTOR(x) \
1804 CHECK_TYPE (VECTORP (x), Qvectorp, x)
1806 #define CHECK_VECTOR_OR_STRING(x) \
1807 CHECK_TYPE (VECTORP (x) || STRINGP (x), Qarrayp, x)
1809 #define CHECK_ARRAY(x, Qxxxp) \
1810 CHECK_TYPE (ARRAYP (x), Qxxxp, x)
1812 #define CHECK_VECTOR_OR_CHAR_TABLE(x) \
1813 CHECK_TYPE (VECTORP (x) || CHAR_TABLE_P (x), Qvector_or_char_table_p, x)
1815 #define CHECK_BUFFER(x) \
1816 CHECK_TYPE (BUFFERP (x), Qbufferp, x)
1818 #define CHECK_WINDOW(x) \
1819 CHECK_TYPE (WINDOWP (x), Qwindowp, x)
1821 #define CHECK_WINDOW_CONFIGURATION(x) \
1822 CHECK_TYPE (WINDOW_CONFIGURATIONP (x), Qwindow_configuration_p, x)
1824 /* This macro rejects windows on the interior of the window tree as
1825 "dead", which is what we want; this is an argument-checking macro, and
1826 the user should never get access to interior windows.
1828 A window of any sort, leaf or interior, is dead if the buffer,
1829 vchild, and hchild members are all nil. */
1831 #define CHECK_LIVE_WINDOW(x) \
1832 CHECK_TYPE (WINDOWP (x) && !NILP (XWINDOW (x)->buffer), Qwindow_live_p, x)
1834 #define CHECK_PROCESS(x) \
1835 CHECK_TYPE (PROCESSP (x), Qprocessp, x)
1837 #define CHECK_SUBR(x) \
1838 CHECK_TYPE (SUBRP (x), Qsubrp, x)
1840 #define CHECK_NUMBER(x) \
1841 CHECK_TYPE (INTEGERP (x), Qintegerp, x)
1843 #define CHECK_NATNUM(x) \
1844 CHECK_TYPE (NATNUMP (x), Qwholenump, x)
1846 #define CHECK_MARKER(x) \
1847 CHECK_TYPE (MARKERP (x), Qmarkerp, x)
1849 #define CHECK_NUMBER_COERCE_MARKER(x) \
1850 do { if (MARKERP ((x))) XSETFASTINT (x, marker_position (x)); \
1851 else CHECK_TYPE (INTEGERP (x), Qinteger_or_marker_p, x); } while (0)
1853 #define XFLOATINT(n) extract_float((n))
1855 #define CHECK_FLOAT(x) \
1856 CHECK_TYPE (FLOATP (x), Qfloatp, x)
1858 #define CHECK_NUMBER_OR_FLOAT(x) \
1859 CHECK_TYPE (FLOATP (x) || INTEGERP (x), Qnumberp, x)
1861 #define CHECK_NUMBER_OR_FLOAT_COERCE_MARKER(x) \
1862 do { if (MARKERP (x)) XSETFASTINT (x, marker_position (x)); \
1863 else CHECK_TYPE (INTEGERP (x) || FLOATP (x), Qnumber_or_marker_p, x); } while (0)
1865 #define CHECK_OVERLAY(x) \
1866 CHECK_TYPE (OVERLAYP (x), Qoverlayp, x)
1868 /* Since we can't assign directly to the CAR or CDR fields of a cons
1869 cell, use these when checking that those fields contain numbers. */
1870 #define CHECK_NUMBER_CAR(x) \
1872 Lisp_Object tmp = XCAR (x); \
1873 CHECK_NUMBER (tmp); \
1874 XSETCAR ((x), tmp); \
1877 #define CHECK_NUMBER_CDR(x) \
1879 Lisp_Object tmp = XCDR (x); \
1880 CHECK_NUMBER (tmp); \
1881 XSETCDR ((x), tmp); \
1884 #define CHECK_NATNUM_CAR(x) \
1886 Lisp_Object tmp = XCAR (x); \
1887 CHECK_NATNUM (tmp); \
1888 XSETCAR ((x), tmp); \
1891 #define CHECK_NATNUM_CDR(x) \
1893 Lisp_Object tmp = XCDR (x); \
1894 CHECK_NATNUM (tmp); \
1895 XSETCDR ((x), tmp); \
1898 /* Define a built-in function for calling from Lisp.
1899 `lname' should be the name to give the function in Lisp,
1900 as a null-terminated C string.
1901 `fnname' should be the name of the function in C.
1902 By convention, it starts with F.
1903 `sname' should be the name for the C constant structure
1904 that records information on this function for internal use.
1905 By convention, it should be the same as `fnname' but with S instead of F.
1906 It's too bad that C macros can't compute this from `fnname'.
1907 `minargs' should be a number, the minimum number of arguments allowed.
1908 `maxargs' should be a number, the maximum number of arguments allowed,
1909 or else MANY or UNEVALLED.
1910 MANY means pass a vector of evaluated arguments,
1911 in the form of an integer number-of-arguments
1912 followed by the address of a vector of Lisp_Objects
1913 which contains the argument values.
1914 UNEVALLED means pass the list of unevaluated arguments
1915 `intspec' says how interactive arguments are to be fetched.
1916 If the string starts with a `(', `intspec' is evaluated and the resulting
1917 list is the list of arguments.
1918 If it's a string that doesn't start with `(', the value should follow
1919 the one of the doc string for `interactive'.
1920 A null string means call interactively with no arguments.
1921 `doc' is documentation for the user. */
1923 /* This version of DEFUN declares a function prototype with the right
1924 arguments, so we can catch errors with maxargs at compile-time. */
1926 #define DEFUN(lname, fnname, sname, minargs, maxargs, intspec, doc) \
1927 Lisp_Object fnname DEFUN_ARGS_ ## maxargs ; \
1928 static DECL_ALIGN (struct Lisp_Subr, sname) = \
1929 { PVEC_SUBR | (sizeof (struct Lisp_Subr) / sizeof (EMACS_INT)), \
1930 { (Lisp_Object (__cdecl *)(void))fnname }, \
1931 minargs, maxargs, lname, intspec, 0}; \
1933 #else /* not _MSC_VER */
1934 #define DEFUN(lname, fnname, sname, minargs, maxargs, intspec, doc) \
1935 Lisp_Object fnname DEFUN_ARGS_ ## maxargs ; \
1936 static DECL_ALIGN (struct Lisp_Subr, sname) = \
1938 { .a ## maxargs = fnname }, \
1939 minargs, maxargs, lname, intspec, 0}; \
1943 /* Note that the weird token-substitution semantics of ANSI C makes
1944 this work for MANY and UNEVALLED. */
1945 #define DEFUN_ARGS_MANY (ptrdiff_t, Lisp_Object *)
1946 #define DEFUN_ARGS_UNEVALLED (Lisp_Object)
1947 #define DEFUN_ARGS_0 (void)
1948 #define DEFUN_ARGS_1 (Lisp_Object)
1949 #define DEFUN_ARGS_2 (Lisp_Object, Lisp_Object)
1950 #define DEFUN_ARGS_3 (Lisp_Object, Lisp_Object, Lisp_Object)
1951 #define DEFUN_ARGS_4 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object)
1952 #define DEFUN_ARGS_5 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
1954 #define DEFUN_ARGS_6 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
1955 Lisp_Object, Lisp_Object)
1956 #define DEFUN_ARGS_7 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
1957 Lisp_Object, Lisp_Object, Lisp_Object)
1958 #define DEFUN_ARGS_8 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
1959 Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object)
1961 /* Non-zero if OBJ is a Lisp function. */
1962 #define FUNCTIONP(OBJ) \
1963 ((CONSP (OBJ) && EQ (XCAR (OBJ), Qlambda)) \
1964 || (SYMBOLP (OBJ) && !NILP (Ffboundp (OBJ))) \
1965 || COMPILEDP (OBJ) \
1969 is how we define the symbol for function `name' at start-up time. */
1970 extern void defsubr (struct Lisp_Subr
*);
1973 #define UNEVALLED -1
1975 extern void defvar_lisp (struct Lisp_Objfwd
*, const char *, Lisp_Object
*);
1976 extern void defvar_lisp_nopro (struct Lisp_Objfwd
*, const char *, Lisp_Object
*);
1977 extern void defvar_bool (struct Lisp_Boolfwd
*, const char *, int *);
1978 extern void defvar_int (struct Lisp_Intfwd
*, const char *, EMACS_INT
*);
1979 extern void defvar_kboard (struct Lisp_Kboard_Objfwd
*, const char *, int);
1981 /* Macros we use to define forwarded Lisp variables.
1982 These are used in the syms_of_FILENAME functions.
1984 An ordinary (not in buffer_defaults, per-buffer, or per-keyboard)
1985 lisp variable is actually a field in `struct emacs_globals'. The
1986 field's name begins with "f_", which is a convention enforced by
1987 these macros. Each such global has a corresponding #define in
1988 globals.h; the plain name should be used in the code.
1990 E.g., the global "cons_cells_consed" is declared as "int
1991 f_cons_cells_consed" in globals.h, but there is a define:
1993 #define cons_cells_consed globals.f_cons_cells_consed
1995 All C code uses the `cons_cells_consed' name. This is all done
1996 this way to support indirection for multi-threaded Emacs. */
1998 #define DEFVAR_LISP(lname, vname, doc) \
2000 static struct Lisp_Objfwd o_fwd; \
2001 defvar_lisp (&o_fwd, lname, &globals.f_ ## vname); \
2003 #define DEFVAR_LISP_NOPRO(lname, vname, doc) \
2005 static struct Lisp_Objfwd o_fwd; \
2006 defvar_lisp_nopro (&o_fwd, lname, &globals.f_ ## vname); \
2008 #define DEFVAR_BOOL(lname, vname, doc) \
2010 static struct Lisp_Boolfwd b_fwd; \
2011 defvar_bool (&b_fwd, lname, &globals.f_ ## vname); \
2013 #define DEFVAR_INT(lname, vname, doc) \
2015 static struct Lisp_Intfwd i_fwd; \
2016 defvar_int (&i_fwd, lname, &globals.f_ ## vname); \
2019 #define DEFVAR_BUFFER_DEFAULTS(lname, vname, doc) \
2021 static struct Lisp_Objfwd o_fwd; \
2022 defvar_lisp_nopro (&o_fwd, lname, &BVAR (&buffer_defaults, vname)); \
2025 #define DEFVAR_KBOARD(lname, vname, doc) \
2027 static struct Lisp_Kboard_Objfwd ko_fwd; \
2028 defvar_kboard (&ko_fwd, lname, offsetof (KBOARD, vname ## _)); \
2033 /* Structure for recording Lisp call stack for backtrace purposes. */
2035 /* The special binding stack holds the outer values of variables while
2036 they are bound by a function application or a let form, stores the
2037 code to be executed for Lisp unwind-protect forms, and stores the C
2038 functions to be called for record_unwind_protect.
2040 If func is non-zero, undoing this binding applies func to old_value;
2041 This implements record_unwind_protect.
2043 Otherwise, the element is a variable binding.
2045 If the symbol field is a symbol, it is an ordinary variable binding.
2047 Otherwise, it should be a structure (SYMBOL WHERE . CURRENT-BUFFER),
2048 which means having bound a local value while CURRENT-BUFFER was active.
2049 If WHERE is nil this means we saw the default value when binding SYMBOL.
2050 WHERE being a buffer or frame means we saw a buffer-local or frame-local
2051 value. Other values of WHERE mean an internal error. */
2053 typedef Lisp_Object (*specbinding_func
) (Lisp_Object
);
2057 Lisp_Object symbol
, old_value
;
2058 specbinding_func func
;
2059 Lisp_Object unused
; /* Dividing by 16 is faster than by 12 */
2062 extern struct specbinding
*specpdl
;
2063 extern struct specbinding
*specpdl_ptr
;
2064 extern EMACS_INT specpdl_size
;
2066 #define SPECPDL_INDEX() ((int) (specpdl_ptr - specpdl))
2068 /* Everything needed to describe an active condition case. */
2071 /* The handler clauses and variable from the condition-case form. */
2072 /* For a handler set up in Lisp code, this is always a list.
2073 For an internal handler set up by internal_condition_case*,
2074 this can instead be the symbol t or `error'.
2075 t: handle all conditions.
2076 error: handle all conditions, and errors can run the debugger
2077 or display a backtrace. */
2078 Lisp_Object handler
;
2080 /* Fsignal stores here the condition-case clause that applies,
2081 and Fcondition_case thus knows which clause to run. */
2082 Lisp_Object chosen_clause
;
2084 /* Used to effect the longjump out to the handler. */
2085 struct catchtag
*tag
;
2087 /* The next enclosing handler. */
2088 struct handler
*next
;
2091 /* This structure helps implement the `catch' and `throw' control
2092 structure. A struct catchtag contains all the information needed
2093 to restore the state of the interpreter after a non-local jump.
2095 Handlers for error conditions (represented by `struct handler'
2096 structures) just point to a catch tag to do the cleanup required
2099 catchtag structures are chained together in the C calling stack;
2100 the `next' member points to the next outer catchtag.
2102 A call like (throw TAG VAL) searches for a catchtag whose `tag'
2103 member is TAG, and then unbinds to it. The `val' member is used to
2104 hold VAL while the stack is unwound; `val' is returned as the value
2107 All the other members are concerned with restoring the interpreter
2114 struct catchtag
*next
;
2115 struct gcpro
*gcpro
;
2117 struct backtrace
*backlist
;
2118 struct handler
*handlerlist
;
2119 int lisp_eval_depth
;
2121 int poll_suppress_count
;
2122 int interrupt_input_blocked
;
2123 struct byte_stack
*byte_stack
;
2126 extern Lisp_Object memory_signal_data
;
2128 /* An address near the bottom of the stack.
2129 Tells GC how to save a copy of the stack. */
2130 extern char *stack_bottom
;
2132 /* Check quit-flag and quit if it is non-nil.
2133 Typing C-g does not directly cause a quit; it only sets Vquit_flag.
2134 So the program needs to do QUIT at times when it is safe to quit.
2135 Every loop that might run for a long time or might not exit
2136 ought to do QUIT at least once, at a safe place.
2137 Unless that is impossible, of course.
2138 But it is very desirable to avoid creating loops where QUIT is impossible.
2140 Exception: if you set immediate_quit to nonzero,
2141 then the handler that responds to the C-g does the quit itself.
2142 This is a good thing to do around a loop that has no side effects
2143 and (in particular) cannot call arbitrary Lisp code.
2145 If quit-flag is set to `kill-emacs' the SIGINT handler has received
2146 a request to exit Emacs when it is safe to do. */
2149 extern void process_pending_signals (void);
2150 extern int pending_signals
;
2151 #define ELSE_PENDING_SIGNALS \
2152 else if (pending_signals) \
2153 process_pending_signals ();
2154 #else /* not SYNC_INPUT */
2155 #define ELSE_PENDING_SIGNALS
2156 #endif /* not SYNC_INPUT */
2158 extern void process_quit_flag (void);
2161 if (!NILP (Vquit_flag) && NILP (Vinhibit_quit)) \
2162 process_quit_flag (); \
2163 ELSE_PENDING_SIGNALS \
2167 /* Nonzero if ought to quit now. */
2169 #define QUITP (!NILP (Vquit_flag) && NILP (Vinhibit_quit))
2171 extern Lisp_Object Vascii_downcase_table
;
2172 extern Lisp_Object Vascii_canon_table
;
2174 /* Number of bytes of structure consed since last GC. */
2176 extern EMACS_INT consing_since_gc
;
2178 extern EMACS_INT gc_relative_threshold
;
2180 extern EMACS_INT memory_full_cons_threshold
;
2182 /* Structure for recording stack slots that need marking. */
2184 /* This is a chain of structures, each of which points at a Lisp_Object
2185 variable whose value should be marked in garbage collection.
2186 Normally every link of the chain is an automatic variable of a function,
2187 and its `val' points to some argument or local variable of the function.
2188 On exit to the function, the chain is set back to the value it had on entry.
2189 This way, no link remains in the chain when the stack frame containing the
2192 Every function that can call Feval must protect in this fashion all
2193 Lisp_Object variables whose contents will be used again. */
2195 extern struct gcpro
*gcprolist
;
2201 /* Address of first protected variable. */
2202 volatile Lisp_Object
*var
;
2204 /* Number of consecutive protected variables. */
2212 /* Values of GC_MARK_STACK during compilation:
2214 0 Use GCPRO as before
2215 1 Do the real thing, make GCPROs and UNGCPRO no-ops.
2216 2 Mark the stack, and check that everything GCPRO'd is
2218 3 Mark using GCPRO's, mark stack last, and count how many
2219 dead objects are kept alive. */
2222 #define GC_USE_GCPROS_AS_BEFORE 0
2223 #define GC_MAKE_GCPROS_NOOPS 1
2224 #define GC_MARK_STACK_CHECK_GCPROS 2
2225 #define GC_USE_GCPROS_CHECK_ZOMBIES 3
2227 #ifndef GC_MARK_STACK
2228 #define GC_MARK_STACK GC_USE_GCPROS_AS_BEFORE
2231 /* Whether we do the stack marking manually. */
2232 #define BYTE_MARK_STACK !(GC_MARK_STACK == GC_MAKE_GCPROS_NOOPS \
2233 || GC_MARK_STACK == GC_MARK_STACK_CHECK_GCPROS)
2236 #if GC_MARK_STACK == GC_MAKE_GCPROS_NOOPS
2238 /* Do something silly with gcproN vars just so gcc shuts up. */
2239 /* You get warnings from MIPSPro... */
2241 #define GCPRO1(varname) ((void) gcpro1)
2242 #define GCPRO2(varname1, varname2) ((void) gcpro2, (void) gcpro1)
2243 #define GCPRO3(varname1, varname2, varname3) \
2244 ((void) gcpro3, (void) gcpro2, (void) gcpro1)
2245 #define GCPRO4(varname1, varname2, varname3, varname4) \
2246 ((void) gcpro4, (void) gcpro3, (void) gcpro2, (void) gcpro1)
2247 #define GCPRO5(varname1, varname2, varname3, varname4, varname5) \
2248 ((void) gcpro5, (void) gcpro4, (void) gcpro3, (void) gcpro2, (void) gcpro1)
2249 #define GCPRO6(varname1, varname2, varname3, varname4, varname5, varname6) \
2250 ((void) gcpro6, (void) gcpro5, (void) gcpro4, (void) gcpro3, (void) gcpro2, \
2252 #define UNGCPRO ((void) 0)
2254 #else /* GC_MARK_STACK != GC_MAKE_GCPROS_NOOPS */
2258 #define GCPRO1(varname) \
2259 {gcpro1.next = gcprolist; gcpro1.var = &varname; gcpro1.nvars = 1; \
2260 gcprolist = &gcpro1; }
2262 #define GCPRO2(varname1, varname2) \
2263 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
2264 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
2265 gcprolist = &gcpro2; }
2267 #define GCPRO3(varname1, varname2, varname3) \
2268 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
2269 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
2270 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
2271 gcprolist = &gcpro3; }
2273 #define GCPRO4(varname1, varname2, varname3, varname4) \
2274 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
2275 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
2276 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
2277 gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \
2278 gcprolist = &gcpro4; }
2280 #define GCPRO5(varname1, varname2, varname3, varname4, varname5) \
2281 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
2282 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
2283 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
2284 gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \
2285 gcpro5.next = &gcpro4; gcpro5.var = &varname5; gcpro5.nvars = 1; \
2286 gcprolist = &gcpro5; }
2288 #define GCPRO6(varname1, varname2, varname3, varname4, varname5, varname6) \
2289 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
2290 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
2291 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
2292 gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \
2293 gcpro5.next = &gcpro4; gcpro5.var = &varname5; gcpro5.nvars = 1; \
2294 gcpro6.next = &gcpro5; gcpro6.var = &varname6; gcpro6.nvars = 1; \
2295 gcprolist = &gcpro6; }
2297 #define UNGCPRO (gcprolist = gcpro1.next)
2301 extern int gcpro_level
;
2303 #define GCPRO1(varname) \
2304 {gcpro1.next = gcprolist; gcpro1.var = &varname; gcpro1.nvars = 1; \
2305 gcpro1.level = gcpro_level++; \
2306 gcprolist = &gcpro1; }
2308 #define GCPRO2(varname1, varname2) \
2309 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
2310 gcpro1.level = gcpro_level; \
2311 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
2312 gcpro2.level = gcpro_level++; \
2313 gcprolist = &gcpro2; }
2315 #define GCPRO3(varname1, varname2, varname3) \
2316 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
2317 gcpro1.level = gcpro_level; \
2318 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
2319 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
2320 gcpro3.level = gcpro_level++; \
2321 gcprolist = &gcpro3; }
2323 #define GCPRO4(varname1, varname2, varname3, varname4) \
2324 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
2325 gcpro1.level = gcpro_level; \
2326 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
2327 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
2328 gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \
2329 gcpro4.level = gcpro_level++; \
2330 gcprolist = &gcpro4; }
2332 #define GCPRO5(varname1, varname2, varname3, varname4, varname5) \
2333 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
2334 gcpro1.level = gcpro_level; \
2335 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
2336 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
2337 gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \
2338 gcpro5.next = &gcpro4; gcpro5.var = &varname5; gcpro5.nvars = 1; \
2339 gcpro5.level = gcpro_level++; \
2340 gcprolist = &gcpro5; }
2342 #define GCPRO6(varname1, varname2, varname3, varname4, varname5, varname6) \
2343 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
2344 gcpro1.level = gcpro_level; \
2345 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
2346 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
2347 gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \
2348 gcpro5.next = &gcpro4; gcpro5.var = &varname5; gcpro5.nvars = 1; \
2349 gcpro6.next = &gcpro5; gcpro6.var = &varname6; gcpro6.nvars = 1; \
2350 gcpro6.level = gcpro_level++; \
2351 gcprolist = &gcpro6; }
2354 ((--gcpro_level != gcpro1.level) \
2356 : ((gcprolist = gcpro1.next), 0))
2358 #endif /* DEBUG_GCPRO */
2359 #endif /* GC_MARK_STACK != GC_MAKE_GCPROS_NOOPS */
2362 /* Evaluate expr, UNGCPRO, and then return the value of expr. */
2363 #define RETURN_UNGCPRO(expr) \
2366 Lisp_Object ret_ungc_val; \
2367 ret_ungc_val = (expr); \
2369 return ret_ungc_val; \
2373 /* Call staticpro (&var) to protect static variable `var'. */
2375 void staticpro (Lisp_Object
*);
2377 /* Declare a Lisp-callable function. The MAXARGS parameter has the same
2378 meaning as in the DEFUN macro, and is used to construct a prototype. */
2379 /* We can use the same trick as in the DEFUN macro to generate the
2380 appropriate prototype. */
2381 #define EXFUN(fnname, maxargs) \
2382 extern Lisp_Object fnname DEFUN_ARGS_ ## maxargs
2384 /* Forward declarations for prototypes. */
2388 /* Defined in data.c. */
2389 extern Lisp_Object Qnil
, Qt
, Qquote
, Qlambda
, Qunbound
;
2390 extern Lisp_Object Qerror_conditions
, Qerror_message
, Qtop_level
;
2391 extern Lisp_Object Qerror
, Qquit
, Qargs_out_of_range
;
2392 extern Lisp_Object Qvoid_variable
, Qvoid_function
;
2393 extern Lisp_Object Qinvalid_read_syntax
;
2394 extern Lisp_Object Qinvalid_function
, Qwrong_number_of_arguments
, Qno_catch
;
2395 extern Lisp_Object Qend_of_file
, Qarith_error
, Qmark_inactive
;
2396 extern Lisp_Object Qbeginning_of_buffer
, Qend_of_buffer
, Qbuffer_read_only
;
2397 extern Lisp_Object Qtext_read_only
;
2398 extern Lisp_Object Qinteractive_form
;
2399 extern Lisp_Object Qcircular_list
;
2400 extern Lisp_Object Qintegerp
, Qwholenump
, Qsymbolp
, Qlistp
, Qconsp
;
2401 extern Lisp_Object Qstringp
, Qarrayp
, Qsequencep
, Qbufferp
;
2402 extern Lisp_Object Qchar_or_string_p
, Qmarkerp
, Qinteger_or_marker_p
, Qvectorp
;
2403 extern Lisp_Object Qbuffer_or_string_p
;
2404 extern Lisp_Object Qfboundp
;
2405 extern Lisp_Object Qchar_table_p
, Qvector_or_char_table_p
;
2407 extern Lisp_Object Qcdr
;
2409 extern Lisp_Object Qrange_error
, Qdomain_error
, Qsingularity_error
;
2410 extern Lisp_Object Qoverflow_error
, Qunderflow_error
;
2412 extern Lisp_Object Qfloatp
;
2413 extern Lisp_Object Qnumberp
, Qnumber_or_marker_p
;
2415 extern Lisp_Object Qinteger
;
2417 extern Lisp_Object Qfont_spec
, Qfont_entity
, Qfont_object
;
2419 EXFUN (Finteractive_form
, 1);
2420 EXFUN (Fbyteorder
, 0);
2422 /* Defined in frame.c */
2423 extern Lisp_Object Qframep
;
2425 /* Defined in data.c */
2427 EXFUN (Fcar_safe
, 1);
2429 EXFUN (Fcdr_safe
, 1);
2433 EXFUN (Ffboundp
, 1);
2434 EXFUN (Fsymbol_function
, 1);
2435 EXFUN (Fsymbol_name
, 1);
2436 extern Lisp_Object
indirect_function (Lisp_Object
);
2437 EXFUN (Findirect_function
, 2);
2439 EXFUN (Fsymbol_value
, 1);
2440 extern Lisp_Object
find_symbol_value (Lisp_Object
);
2442 EXFUN (Fdefault_value
, 1);
2443 EXFUN (Fset_default
, 2);
2444 EXFUN (Fdefault_boundp
, 1);
2445 EXFUN (Fmake_local_variable
, 1);
2446 EXFUN (Flocal_variable_p
, 2);
2451 EXFUN (Fstring_to_number
, 2);
2452 EXFUN (Fnumber_to_string
, 1);
2458 EXFUN (Fplus
, MANY
);
2459 EXFUN (Fminus
, MANY
);
2460 EXFUN (Ftimes
, MANY
);
2468 EXFUN (Fmake_variable_buffer_local
, 1);
2470 /* Convert the integer I to an Emacs representation, either the integer
2471 itself, or a cons of two or three integers, or if all else fails a float.
2472 I should not have side effects. */
2473 #define INTEGER_TO_CONS(i) \
2474 (! FIXNUM_OVERFLOW_P (i) \
2476 : ! ((FIXNUM_OVERFLOW_P (INTMAX_MIN >> 16) \
2477 || FIXNUM_OVERFLOW_P (UINTMAX_MAX >> 16)) \
2478 && FIXNUM_OVERFLOW_P ((i) >> 16)) \
2479 ? Fcons (make_number ((i) >> 16), make_number ((i) & 0xffff)) \
2480 : ! ((FIXNUM_OVERFLOW_P (INTMAX_MIN >> 16 >> 24) \
2481 || FIXNUM_OVERFLOW_P (UINTMAX_MAX >> 16 >> 24)) \
2482 && FIXNUM_OVERFLOW_P ((i) >> 16 >> 24)) \
2483 ? Fcons (make_number ((i) >> 16 >> 24), \
2484 Fcons (make_number ((i) >> 16 & 0xffffff), \
2485 make_number ((i) & 0xffff))) \
2488 /* Convert the Emacs representation CONS back to an integer of type
2489 TYPE, storing the result the variable VAR. Signal an error if CONS
2490 is not a valid representation or is out of range for TYPE. */
2491 #define CONS_TO_INTEGER(cons, type, var) \
2492 (TYPE_SIGNED (type) \
2493 ? ((var) = cons_to_signed (cons, TYPE_MINIMUM (type), TYPE_MAXIMUM (type))) \
2494 : ((var) = cons_to_unsigned (cons, TYPE_MAXIMUM (type))))
2495 extern intmax_t cons_to_signed (Lisp_Object
, intmax_t, intmax_t);
2496 extern uintmax_t cons_to_unsigned (Lisp_Object
, uintmax_t);
2498 extern struct Lisp_Symbol
*indirect_variable (struct Lisp_Symbol
*);
2499 extern void args_out_of_range (Lisp_Object
, Lisp_Object
) NO_RETURN
;
2500 extern void args_out_of_range_3 (Lisp_Object
, Lisp_Object
,
2501 Lisp_Object
) NO_RETURN
;
2502 extern Lisp_Object
wrong_type_argument (Lisp_Object
, Lisp_Object
) NO_RETURN
;
2503 extern Lisp_Object
do_symval_forwarding (union Lisp_Fwd
*);
2504 extern void set_internal (Lisp_Object
, Lisp_Object
, Lisp_Object
, int);
2505 extern void syms_of_data (void);
2506 extern void init_data (void);
2507 extern void swap_in_global_binding (struct Lisp_Symbol
*);
2509 /* Defined in cmds.c */
2510 EXFUN (Fend_of_line
, 1);
2511 EXFUN (Fforward_char
, 1);
2512 EXFUN (Fforward_line
, 1);
2513 extern void syms_of_cmds (void);
2514 extern void keys_of_cmds (void);
2516 /* Defined in coding.c */
2517 extern Lisp_Object Qcharset
;
2518 EXFUN (Fcoding_system_p
, 1);
2519 EXFUN (Fcoding_system_base
, 1);
2520 EXFUN (Fcoding_system_eol_type
, 1);
2521 EXFUN (Fcheck_coding_system
, 1);
2522 EXFUN (Fread_coding_system
, 2);
2523 EXFUN (Fread_non_nil_coding_system
, 1);
2524 EXFUN (Ffind_operation_coding_system
, MANY
);
2525 EXFUN (Fdecode_coding_string
, 4);
2526 extern Lisp_Object
detect_coding_system (const unsigned char *, EMACS_INT
,
2527 EMACS_INT
, int, int, Lisp_Object
);
2528 extern void init_coding (void);
2529 extern void init_coding_once (void);
2530 extern void syms_of_coding (void);
2532 /* Defined in character.c */
2533 EXFUN (Fchar_width
, 1);
2534 EXFUN (Fstring
, MANY
);
2535 extern EMACS_INT
chars_in_text (const unsigned char *, EMACS_INT
);
2536 extern EMACS_INT
multibyte_chars_in_text (const unsigned char *, EMACS_INT
);
2537 extern int multibyte_char_to_unibyte (int);
2538 extern int multibyte_char_to_unibyte_safe (int);
2539 extern void init_character_once (void);
2540 extern void syms_of_character (void);
2542 /* Defined in charset.c */
2543 extern void init_charset (void);
2544 extern void init_charset_once (void);
2545 extern void syms_of_charset (void);
2546 /* Structure forward declarations. */
2549 /* Defined in composite.c */
2550 extern void syms_of_composite (void);
2552 /* Defined in syntax.c */
2553 EXFUN (Fforward_word
, 1);
2554 EXFUN (Fskip_chars_forward
, 2);
2555 EXFUN (Fskip_chars_backward
, 2);
2556 extern void init_syntax_once (void);
2557 extern void syms_of_syntax (void);
2559 /* Defined in fns.c */
2560 extern Lisp_Object QCrehash_size
, QCrehash_threshold
;
2561 enum { NEXT_ALMOST_PRIME_LIMIT
= 11 };
2562 extern EMACS_INT
next_almost_prime (EMACS_INT
);
2563 extern Lisp_Object
larger_vector (Lisp_Object
, EMACS_INT
, Lisp_Object
);
2564 extern void sweep_weak_hash_tables (void);
2565 extern Lisp_Object Qcursor_in_echo_area
;
2566 extern Lisp_Object Qstring_lessp
;
2567 extern Lisp_Object QCsize
, QCtest
, QCweakness
, Qequal
, Qeq
, Qeql
;
2568 EMACS_UINT
hash_string (char const *, ptrdiff_t);
2569 EMACS_UINT
sxhash (Lisp_Object
, int);
2570 Lisp_Object
make_hash_table (Lisp_Object
, Lisp_Object
, Lisp_Object
,
2571 Lisp_Object
, Lisp_Object
, Lisp_Object
,
2573 ptrdiff_t hash_lookup (struct Lisp_Hash_Table
*, Lisp_Object
, EMACS_UINT
*);
2574 ptrdiff_t hash_put (struct Lisp_Hash_Table
*, Lisp_Object
, Lisp_Object
,
2576 void init_weak_hash_tables (void);
2577 extern void init_fns (void);
2578 EXFUN (Fmake_hash_table
, MANY
);
2579 EXFUN (Fgethash
, 3);
2580 EXFUN (Fputhash
, 3);
2581 EXFUN (Fremhash
, 2);
2583 EXFUN (Fidentity
, 1);
2585 EXFUN (Fappend
, MANY
);
2586 EXFUN (Fconcat
, MANY
);
2587 EXFUN (Fvconcat
, MANY
);
2588 EXFUN (Fcopy_sequence
, 1);
2589 EXFUN (Fstring_make_multibyte
, 1);
2590 EXFUN (Fstring_make_unibyte
, 1);
2591 EXFUN (Fstring_as_multibyte
, 1);
2592 EXFUN (Fstring_as_unibyte
, 1);
2593 EXFUN (Fstring_to_multibyte
, 1);
2594 EXFUN (Fsubstring
, 3);
2595 extern Lisp_Object
substring_both (Lisp_Object
, EMACS_INT
, EMACS_INT
,
2596 EMACS_INT
, EMACS_INT
);
2608 EXFUN (Freverse
, 1);
2609 EXFUN (Fnreverse
, 1);
2613 EXFUN (Fnconc
, MANY
);
2615 EXFUN (Fmapconcat
, 3);
2616 extern Lisp_Object
do_yes_or_no_p (Lisp_Object
);
2617 EXFUN (Fprovide
, 2);
2618 extern Lisp_Object
concat2 (Lisp_Object
, Lisp_Object
);
2619 extern Lisp_Object
concat3 (Lisp_Object
, Lisp_Object
, Lisp_Object
);
2620 extern Lisp_Object
nconc2 (Lisp_Object
, Lisp_Object
);
2621 extern Lisp_Object
assq_no_quit (Lisp_Object
, Lisp_Object
);
2622 extern Lisp_Object
assoc_no_quit (Lisp_Object
, Lisp_Object
);
2623 extern void clear_string_char_byte_cache (void);
2624 extern EMACS_INT
string_char_to_byte (Lisp_Object
, EMACS_INT
);
2625 extern EMACS_INT
string_byte_to_char (Lisp_Object
, EMACS_INT
);
2626 extern Lisp_Object
string_to_multibyte (Lisp_Object
);
2627 extern Lisp_Object
string_make_unibyte (Lisp_Object
);
2628 EXFUN (Fcopy_alist
, 1);
2629 EXFUN (Fplist_get
, 2);
2630 EXFUN (Fplist_put
, 3);
2631 EXFUN (Fplist_member
, 2);
2633 EXFUN (Fstring_equal
, 2);
2634 EXFUN (Fcompare_strings
, 7);
2635 EXFUN (Fstring_lessp
, 2);
2636 extern void syms_of_fns (void);
2638 /* Defined in floatfns.c */
2639 extern double extract_float (Lisp_Object
);
2641 EXFUN (Ftruncate
, 2);
2642 extern void init_floatfns (void);
2643 extern void syms_of_floatfns (void);
2644 extern Lisp_Object
fmod_float (Lisp_Object x
, Lisp_Object y
);
2646 /* Defined in fringe.c */
2647 extern void syms_of_fringe (void);
2648 extern void init_fringe (void);
2649 #ifdef HAVE_WINDOW_SYSTEM
2650 extern void mark_fringe_data (void);
2651 extern void init_fringe_once (void);
2652 #endif /* HAVE_WINDOW_SYSTEM */
2654 /* Defined in image.c */
2655 extern Lisp_Object QCascent
, QCmargin
, QCrelief
;
2656 extern Lisp_Object QCconversion
;
2657 extern int x_bitmap_mask (struct frame
*, ptrdiff_t);
2658 extern void syms_of_image (void);
2659 extern void init_image (void);
2661 /* Defined in insdel.c */
2662 extern Lisp_Object Qinhibit_modification_hooks
;
2663 extern void move_gap (EMACS_INT
);
2664 extern void move_gap_both (EMACS_INT
, EMACS_INT
);
2665 extern void buffer_overflow (void) NO_RETURN
;
2666 extern void make_gap (EMACS_INT
);
2667 extern EMACS_INT
copy_text (const unsigned char *, unsigned char *,
2668 EMACS_INT
, int, int);
2669 extern int count_combining_before (const unsigned char *,
2670 EMACS_INT
, EMACS_INT
, EMACS_INT
);
2671 extern int count_combining_after (const unsigned char *,
2672 EMACS_INT
, EMACS_INT
, EMACS_INT
);
2673 extern void insert (const char *, EMACS_INT
);
2674 extern void insert_and_inherit (const char *, EMACS_INT
);
2675 extern void insert_1 (const char *, EMACS_INT
, int, int, int);
2676 extern void insert_1_both (const char *, EMACS_INT
, EMACS_INT
,
2678 extern void insert_from_gap (EMACS_INT
, EMACS_INT
);
2679 extern void insert_from_string (Lisp_Object
, EMACS_INT
, EMACS_INT
,
2680 EMACS_INT
, EMACS_INT
, int);
2681 extern void insert_from_buffer (struct buffer
*, EMACS_INT
, EMACS_INT
, int);
2682 extern void insert_char (int);
2683 extern void insert_string (const char *);
2684 extern void insert_before_markers (const char *, EMACS_INT
);
2685 extern void insert_before_markers_and_inherit (const char *, EMACS_INT
);
2686 extern void insert_from_string_before_markers (Lisp_Object
, EMACS_INT
,
2687 EMACS_INT
, EMACS_INT
,
2689 extern void del_range (EMACS_INT
, EMACS_INT
);
2690 extern Lisp_Object
del_range_1 (EMACS_INT
, EMACS_INT
, int, int);
2691 extern void del_range_byte (EMACS_INT
, EMACS_INT
, int);
2692 extern void del_range_both (EMACS_INT
, EMACS_INT
, EMACS_INT
, EMACS_INT
, int);
2693 extern Lisp_Object
del_range_2 (EMACS_INT
, EMACS_INT
,
2694 EMACS_INT
, EMACS_INT
, int);
2695 extern void modify_region (struct buffer
*, EMACS_INT
, EMACS_INT
, int);
2696 extern void prepare_to_modify_buffer (EMACS_INT
, EMACS_INT
, EMACS_INT
*);
2697 extern void signal_after_change (EMACS_INT
, EMACS_INT
, EMACS_INT
);
2698 extern void adjust_after_insert (EMACS_INT
, EMACS_INT
, EMACS_INT
,
2699 EMACS_INT
, EMACS_INT
);
2700 extern void adjust_markers_for_delete (EMACS_INT
, EMACS_INT
,
2701 EMACS_INT
, EMACS_INT
);
2702 extern void replace_range (EMACS_INT
, EMACS_INT
, Lisp_Object
, int, int, int);
2703 extern void replace_range_2 (EMACS_INT
, EMACS_INT
, EMACS_INT
, EMACS_INT
,
2704 const char *, EMACS_INT
, EMACS_INT
, int);
2705 extern void syms_of_insdel (void);
2707 /* Defined in dispnew.c */
2708 extern Lisp_Object selected_frame
;
2709 extern Lisp_Object Vwindow_system
;
2711 EXFUN (Fredraw_frame
, 1);
2712 EXFUN (Fsleep_for
, 2);
2713 EXFUN (Fredisplay
, 1);
2714 extern Lisp_Object
sit_for (Lisp_Object
, int, int);
2715 extern void init_display (void);
2716 extern void syms_of_display (void);
2718 /* Defined in xdisp.c */
2719 extern Lisp_Object Qinhibit_point_motion_hooks
;
2720 extern Lisp_Object Qinhibit_redisplay
, Qdisplay
;
2721 extern Lisp_Object Qmenu_bar_update_hook
;
2722 extern Lisp_Object Qwindow_scroll_functions
;
2723 extern Lisp_Object Qoverriding_local_map
, Qoverriding_terminal_local_map
;
2724 extern Lisp_Object Qimage
, Qtext
, Qboth
, Qboth_horiz
, Qtext_image_horiz
;
2725 extern Lisp_Object Qspace
, Qcenter
, QCalign_to
;
2726 extern Lisp_Object Qbar
, Qhbar
, Qbox
, Qhollow
;
2727 extern Lisp_Object Qleft_margin
, Qright_margin
;
2728 extern Lisp_Object Qglyphless_char
;
2729 extern Lisp_Object QCdata
, QCfile
;
2730 extern Lisp_Object QCmap
;
2731 extern Lisp_Object Qrisky_local_variable
;
2732 extern struct frame
*last_glyphless_glyph_frame
;
2733 extern unsigned last_glyphless_glyph_face_id
;
2734 extern int last_glyphless_glyph_merged_face_id
;
2735 extern int noninteractive_need_newline
;
2736 extern Lisp_Object echo_area_buffer
[2];
2737 extern void add_to_log (const char *, Lisp_Object
, Lisp_Object
);
2738 extern void check_message_stack (void);
2739 extern void setup_echo_area_for_printing (int);
2740 extern int push_message (void);
2741 extern Lisp_Object
pop_message_unwind (Lisp_Object
);
2742 extern Lisp_Object
restore_message_unwind (Lisp_Object
);
2743 extern void restore_message (void);
2744 extern Lisp_Object
current_message (void);
2745 extern void clear_message (int, int);
2746 extern void message (const char *, ...) ATTRIBUTE_FORMAT_PRINTF (1, 2);
2747 extern void message1 (const char *);
2748 extern void message1_nolog (const char *);
2749 extern void message2 (const char *, EMACS_INT
, int);
2750 extern void message2_nolog (const char *, EMACS_INT
, int);
2751 extern void message3 (Lisp_Object
, EMACS_INT
, int);
2752 extern void message3_nolog (Lisp_Object
, EMACS_INT
, int);
2753 extern void message_dolog (const char *, EMACS_INT
, int, int);
2754 extern void message_with_string (const char *, Lisp_Object
, int);
2755 extern void message_log_maybe_newline (void);
2756 extern void update_echo_area (void);
2757 extern void truncate_echo_area (EMACS_INT
);
2758 extern void redisplay (void);
2759 extern void redisplay_preserve_echo_area (int);
2760 extern void prepare_menu_bars (void);
2762 void set_frame_cursor_types (struct frame
*, Lisp_Object
);
2763 extern void syms_of_xdisp (void);
2764 extern void init_xdisp (void);
2765 extern Lisp_Object
safe_eval (Lisp_Object
);
2766 extern int pos_visible_p (struct window
*, EMACS_INT
, int *,
2767 int *, int *, int *, int *, int *);
2769 /* Defined in xsettings.c */
2770 extern void syms_of_xsettings (void);
2772 /* Defined in vm-limit.c. */
2773 extern void memory_warnings (POINTER_TYPE
*, void (*warnfun
) (const char *));
2775 /* Defined in alloc.c */
2776 extern void check_pure_size (void);
2777 extern void allocate_string_data (struct Lisp_String
*, EMACS_INT
, EMACS_INT
);
2778 extern void reset_malloc_hooks (void);
2779 extern void uninterrupt_malloc (void);
2780 extern void malloc_warning (const char *);
2781 extern void memory_full (size_t) NO_RETURN
;
2782 extern void buffer_memory_full (EMACS_INT
) NO_RETURN
;
2783 extern int survives_gc_p (Lisp_Object
);
2784 extern void mark_object (Lisp_Object
);
2785 #if defined REL_ALLOC && !defined SYSTEM_MALLOC
2786 extern void refill_memory_reserve (void);
2788 extern const char *pending_malloc_warning
;
2789 extern Lisp_Object
*stack_base
;
2791 extern Lisp_Object
list1 (Lisp_Object
);
2792 extern Lisp_Object
list2 (Lisp_Object
, Lisp_Object
);
2793 extern Lisp_Object
list3 (Lisp_Object
, Lisp_Object
, Lisp_Object
);
2794 extern Lisp_Object
list4 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
2795 extern Lisp_Object
list5 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
,
2797 EXFUN (Flist
, MANY
);
2798 EXFUN (Fmake_list
, 2);
2799 extern Lisp_Object
allocate_misc (void);
2800 EXFUN (Fmake_vector
, 2);
2801 EXFUN (Fvector
, MANY
);
2802 EXFUN (Fmake_symbol
, 1);
2803 EXFUN (Fmake_marker
, 0);
2804 extern void string_overflow (void) NO_RETURN
;
2805 EXFUN (Fmake_string
, 2);
2806 extern Lisp_Object
build_string (const char *);
2807 extern Lisp_Object
make_string (const char *, EMACS_INT
);
2808 extern Lisp_Object
make_unibyte_string (const char *, EMACS_INT
);
2809 extern Lisp_Object
make_multibyte_string (const char *, EMACS_INT
, EMACS_INT
);
2810 extern Lisp_Object
make_event_array (int, Lisp_Object
*);
2811 extern Lisp_Object
make_uninit_string (EMACS_INT
);
2812 extern Lisp_Object
make_uninit_multibyte_string (EMACS_INT
, EMACS_INT
);
2813 extern Lisp_Object
make_string_from_bytes (const char *, EMACS_INT
, EMACS_INT
);
2814 extern Lisp_Object
make_specified_string (const char *,
2815 EMACS_INT
, EMACS_INT
, int);
2816 EXFUN (Fpurecopy
, 1);
2817 extern Lisp_Object
make_pure_string (const char *, EMACS_INT
, EMACS_INT
, int);
2818 extern Lisp_Object
make_pure_c_string (const char *data
);
2819 extern Lisp_Object
pure_cons (Lisp_Object
, Lisp_Object
);
2820 extern Lisp_Object
make_pure_vector (EMACS_INT
);
2821 EXFUN (Fgarbage_collect
, 0);
2822 EXFUN (Fmake_byte_code
, MANY
);
2823 EXFUN (Fmake_bool_vector
, 2);
2824 extern Lisp_Object Qchar_table_extra_slots
;
2825 extern struct Lisp_Vector
*allocate_vector (EMACS_INT
);
2826 extern struct Lisp_Vector
*allocate_pseudovector (int memlen
, int lisplen
, EMACS_INT tag
);
2827 #define ALLOCATE_PSEUDOVECTOR(typ,field,tag) \
2829 allocate_pseudovector \
2830 (VECSIZE (typ), PSEUDOVECSIZE (typ, field), tag))
2831 extern struct Lisp_Hash_Table
*allocate_hash_table (void);
2832 extern struct window
*allocate_window (void);
2833 extern struct frame
*allocate_frame (void);
2834 extern struct Lisp_Process
*allocate_process (void);
2835 extern struct terminal
*allocate_terminal (void);
2836 extern int gc_in_progress
;
2837 extern int abort_on_gc
;
2838 extern Lisp_Object
make_float (double);
2839 extern void display_malloc_warning (void);
2840 extern int inhibit_garbage_collection (void);
2841 extern Lisp_Object
make_save_value (void *, ptrdiff_t);
2842 extern void free_marker (Lisp_Object
);
2843 extern void free_cons (struct Lisp_Cons
*);
2844 extern void init_alloc_once (void);
2845 extern void init_alloc (void);
2846 extern void syms_of_alloc (void);
2847 extern struct buffer
* allocate_buffer (void);
2848 extern int valid_lisp_object_p (Lisp_Object
);
2850 /* Defined in chartab.c */
2851 EXFUN (Fmake_char_table
, 2);
2852 EXFUN (Fset_char_table_parent
, 2);
2853 EXFUN (Fchar_table_extra_slot
, 2);
2854 EXFUN (Fset_char_table_extra_slot
, 3);
2855 EXFUN (Fset_char_table_range
, 3);
2856 EXFUN (Foptimize_char_table
, 2);
2857 extern Lisp_Object
copy_char_table (Lisp_Object
);
2858 extern Lisp_Object
char_table_ref (Lisp_Object
, int);
2859 extern Lisp_Object
char_table_ref_and_range (Lisp_Object
, int,
2861 extern Lisp_Object
char_table_set (Lisp_Object
, int, Lisp_Object
);
2862 extern Lisp_Object
char_table_set_range (Lisp_Object
, int, int,
2864 extern int char_table_translate (Lisp_Object
, int);
2865 extern void map_char_table (void (*) (Lisp_Object
, Lisp_Object
,
2867 Lisp_Object
, Lisp_Object
, Lisp_Object
);
2868 extern void map_char_table_for_charset (void (*c_function
) (Lisp_Object
, Lisp_Object
),
2869 Lisp_Object
, Lisp_Object
,
2870 Lisp_Object
, struct charset
*,
2871 unsigned, unsigned);
2872 extern Lisp_Object
uniprop_table (Lisp_Object
);
2873 extern void syms_of_chartab (void);
2875 /* Defined in print.c */
2876 extern Lisp_Object Vprin1_to_string_buffer
;
2877 extern void debug_print (Lisp_Object
) EXTERNALLY_VISIBLE
;
2879 EXFUN (Fprin1_to_string
, 2);
2882 EXFUN (Ferror_message_string
, 1);
2883 extern Lisp_Object Qstandard_output
;
2884 extern Lisp_Object Qexternal_debugging_output
;
2885 extern void temp_output_buffer_setup (const char *);
2886 extern int print_level
;
2887 extern Lisp_Object Qprint_escape_newlines
;
2888 extern void write_string (const char *, int);
2889 extern void print_error_message (Lisp_Object
, Lisp_Object
, const char *,
2891 extern Lisp_Object internal_with_output_to_temp_buffer
2892 (const char *, Lisp_Object (*) (Lisp_Object
), Lisp_Object
);
2893 #define FLOAT_TO_STRING_BUFSIZE 350
2894 extern void float_to_string (char *, double);
2895 extern void syms_of_print (void);
2897 /* Defined in doprnt.c */
2898 extern ptrdiff_t doprnt (char *, ptrdiff_t, const char *, const char *,
2900 extern ptrdiff_t esprintf (char *, char const *, ...)
2901 ATTRIBUTE_FORMAT_PRINTF (2, 3);
2902 extern ptrdiff_t exprintf (char **, ptrdiff_t *, char const *, ptrdiff_t,
2904 ATTRIBUTE_FORMAT_PRINTF (5, 6);
2905 extern ptrdiff_t evxprintf (char **, ptrdiff_t *, char const *, ptrdiff_t,
2906 char const *, va_list)
2907 ATTRIBUTE_FORMAT_PRINTF (5, 0);
2909 /* Defined in lread.c. */
2910 extern Lisp_Object Qvariable_documentation
, Qstandard_input
;
2911 extern Lisp_Object Qbackquote
, Qcomma
, Qcomma_at
, Qcomma_dot
, Qfunction
;
2913 EXFUN (Fread_from_string
, 3);
2915 EXFUN (Fintern_soft
, 2);
2916 EXFUN (Funintern
, 2);
2918 EXFUN (Fget_load_suffixes
, 0);
2919 EXFUN (Fread_char
, 3);
2920 EXFUN (Fread_event
, 3);
2921 extern Lisp_Object
check_obarray (Lisp_Object
);
2922 extern Lisp_Object
intern (const char *);
2923 extern Lisp_Object
intern_c_string (const char *);
2924 extern Lisp_Object
oblookup (Lisp_Object
, const char *, EMACS_INT
, EMACS_INT
);
2925 #define LOADHIST_ATTACH(x) \
2927 if (initialized) Vcurrent_load_list = Fcons (x, Vcurrent_load_list); \
2929 extern int openp (Lisp_Object
, Lisp_Object
, Lisp_Object
,
2930 Lisp_Object
*, Lisp_Object
);
2931 Lisp_Object
string_to_number (char const *, int, int);
2932 extern void map_obarray (Lisp_Object
, void (*) (Lisp_Object
, Lisp_Object
),
2934 extern void dir_warning (const char *, Lisp_Object
);
2935 extern void close_load_descs (void);
2936 extern void init_obarray (void);
2937 extern void init_lread (void);
2938 extern void syms_of_lread (void);
2940 /* Defined in eval.c. */
2941 extern Lisp_Object Qautoload
, Qexit
, Qinteractive
, Qcommandp
, Qdefun
, Qmacro
;
2942 extern Lisp_Object Qinhibit_quit
, Qclosure
;
2943 extern Lisp_Object Qand_rest
;
2944 extern Lisp_Object Vautoload_queue
;
2945 extern Lisp_Object Vsignaling_function
;
2946 extern Lisp_Object inhibit_lisp_code
;
2947 extern int handling_signal
;
2949 extern struct catchtag
*catchlist
;
2950 extern struct handler
*handlerlist
;
2952 /* To run a normal hook, use the appropriate function from the list below.
2953 The calling convention:
2955 if (!NILP (Vrun_hooks))
2956 call1 (Vrun_hooks, Qmy_funny_hook);
2958 should no longer be used. */
2959 extern Lisp_Object Vrun_hooks
;
2960 EXFUN (Frun_hooks
, MANY
);
2961 EXFUN (Frun_hook_with_args
, MANY
);
2962 EXFUN (Frun_hook_with_args_until_failure
, MANY
);
2963 extern void run_hook_with_args_2 (Lisp_Object
, Lisp_Object
, Lisp_Object
);
2964 extern Lisp_Object
run_hook_with_args (ptrdiff_t nargs
, Lisp_Object
*args
,
2965 Lisp_Object (*funcall
)
2966 (ptrdiff_t nargs
, Lisp_Object
*args
));
2967 EXFUN (Fprogn
, UNEVALLED
);
2968 EXFUN (Finteractive_p
, 0);
2969 EXFUN (Fthrow
, 2) NO_RETURN
;
2971 extern void xsignal (Lisp_Object
, Lisp_Object
) NO_RETURN
;
2972 extern void xsignal0 (Lisp_Object
) NO_RETURN
;
2973 extern void xsignal1 (Lisp_Object
, Lisp_Object
) NO_RETURN
;
2974 extern void xsignal2 (Lisp_Object
, Lisp_Object
, Lisp_Object
) NO_RETURN
;
2975 extern void xsignal3 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
) NO_RETURN
;
2976 extern void signal_error (const char *, Lisp_Object
) NO_RETURN
;
2977 EXFUN (Fcommandp
, 2);
2978 EXFUN (Ffunctionp
, 1);
2980 extern Lisp_Object
eval_sub (Lisp_Object form
);
2981 EXFUN (Fapply
, MANY
);
2982 EXFUN (Ffuncall
, MANY
);
2983 extern Lisp_Object
apply1 (Lisp_Object
, Lisp_Object
);
2984 extern Lisp_Object
call0 (Lisp_Object
);
2985 extern Lisp_Object
call1 (Lisp_Object
, Lisp_Object
);
2986 extern Lisp_Object
call2 (Lisp_Object
, Lisp_Object
, Lisp_Object
);
2987 extern Lisp_Object
call3 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
2988 extern Lisp_Object
call4 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
2989 extern Lisp_Object
call5 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
2990 extern Lisp_Object
call6 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
2991 extern Lisp_Object
call7 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
2992 EXFUN (Fdo_auto_save
, 2);
2993 extern Lisp_Object
internal_catch (Lisp_Object
, Lisp_Object (*) (Lisp_Object
), Lisp_Object
);
2994 extern Lisp_Object
internal_lisp_condition_case (Lisp_Object
, Lisp_Object
, Lisp_Object
);
2995 extern Lisp_Object
internal_condition_case (Lisp_Object (*) (void), Lisp_Object
, Lisp_Object (*) (Lisp_Object
));
2996 extern Lisp_Object
internal_condition_case_1 (Lisp_Object (*) (Lisp_Object
), Lisp_Object
, Lisp_Object
, Lisp_Object (*) (Lisp_Object
));
2997 extern Lisp_Object
internal_condition_case_2 (Lisp_Object (*) (Lisp_Object
, Lisp_Object
), Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object (*) (Lisp_Object
));
2998 extern Lisp_Object
internal_condition_case_n (Lisp_Object (*) (ptrdiff_t, Lisp_Object
*), ptrdiff_t, Lisp_Object
*, Lisp_Object
, Lisp_Object (*) (Lisp_Object
));
2999 extern void specbind (Lisp_Object
, Lisp_Object
);
3000 extern void record_unwind_protect (Lisp_Object (*) (Lisp_Object
), Lisp_Object
);
3001 extern Lisp_Object
unbind_to (int, Lisp_Object
);
3002 extern void error (const char *, ...) NO_RETURN
ATTRIBUTE_FORMAT_PRINTF (1, 2);
3003 extern void verror (const char *, va_list)
3004 NO_RETURN
ATTRIBUTE_FORMAT_PRINTF (1, 0);
3005 extern void do_autoload (Lisp_Object
, Lisp_Object
);
3006 extern Lisp_Object
un_autoload (Lisp_Object
);
3007 extern void init_eval_once (void);
3008 extern Lisp_Object
safe_call (ptrdiff_t, Lisp_Object
*);
3009 extern Lisp_Object
safe_call1 (Lisp_Object
, Lisp_Object
);
3010 extern Lisp_Object
safe_call2 (Lisp_Object
, Lisp_Object
, Lisp_Object
);
3011 extern void init_eval (void);
3013 extern void mark_backtrace (void);
3015 extern void syms_of_eval (void);
3017 /* Defined in editfns.c */
3018 extern Lisp_Object Qfield
;
3019 EXFUN (Fcurrent_message
, 0);
3020 EXFUN (Fgoto_char
, 1);
3021 EXFUN (Fpoint_max_marker
, 0);
3023 EXFUN (Fpoint_marker
, 0);
3024 EXFUN (Fline_beginning_position
, 1);
3025 EXFUN (Fline_end_position
, 1);
3026 EXFUN (Ffollowing_char
, 0);
3027 EXFUN (Fprevious_char
, 0);
3028 EXFUN (Fchar_after
, 1);
3029 EXFUN (Finsert
, MANY
);
3030 EXFUN (Finsert_char
, 3);
3031 extern void insert1 (Lisp_Object
);
3036 EXFUN (Fformat
, MANY
);
3037 EXFUN (Fmessage
, MANY
);
3038 extern Lisp_Object
format2 (const char *, Lisp_Object
, Lisp_Object
);
3039 EXFUN (Fbuffer_substring
, 2);
3040 EXFUN (Fbuffer_string
, 0);
3041 extern Lisp_Object
save_excursion_save (void);
3042 extern Lisp_Object
save_restriction_save (void);
3043 extern Lisp_Object
save_excursion_restore (Lisp_Object
);
3044 extern Lisp_Object
save_restriction_restore (Lisp_Object
);
3045 EXFUN (Fchar_to_string
, 1);
3046 EXFUN (Fdelete_region
, 2);
3047 EXFUN (Fnarrow_to_region
, 2);
3049 EXFUN (Fuser_login_name
, 1);
3050 EXFUN (Fsystem_name
, 0);
3051 EXFUN (Fcurrent_time
, 0);
3052 EXFUN (Fget_internal_run_time
, 0);
3053 extern EMACS_INT
clip_to_bounds (EMACS_INT
, EMACS_INT
, EMACS_INT
);
3054 extern Lisp_Object
make_buffer_string (EMACS_INT
, EMACS_INT
, int);
3055 extern Lisp_Object
make_buffer_string_both (EMACS_INT
, EMACS_INT
, EMACS_INT
,
3057 extern void init_editfns (void);
3058 const char *get_system_name (void);
3059 extern void syms_of_editfns (void);
3060 EXFUN (Fconstrain_to_field
, 5);
3061 EXFUN (Ffield_end
, 3);
3062 extern void set_time_zone_rule (const char *);
3064 /* Defined in buffer.c */
3065 extern int mouse_face_overlay_overlaps (Lisp_Object
);
3066 extern void nsberror (Lisp_Object
) NO_RETURN
;
3067 EXFUN (Fset_buffer_multibyte
, 1);
3068 EXFUN (Foverlay_start
, 1);
3069 EXFUN (Foverlay_end
, 1);
3070 extern void adjust_overlays_for_insert (EMACS_INT
, EMACS_INT
);
3071 extern void adjust_overlays_for_delete (EMACS_INT
, EMACS_INT
);
3072 extern void fix_start_end_in_overlays (EMACS_INT
, EMACS_INT
);
3073 extern void report_overlay_modification (Lisp_Object
, Lisp_Object
, int,
3074 Lisp_Object
, Lisp_Object
, Lisp_Object
);
3075 extern int overlay_touches_p (EMACS_INT
);
3076 extern Lisp_Object Vbuffer_alist
;
3077 EXFUN (Fget_buffer
, 1);
3078 EXFUN (Fget_buffer_create
, 1);
3079 EXFUN (Fgenerate_new_buffer_name
, 2);
3080 EXFUN (Fset_buffer
, 1);
3081 extern Lisp_Object
set_buffer_if_live (Lisp_Object
);
3082 EXFUN (Fbarf_if_buffer_read_only
, 0);
3083 EXFUN (Fcurrent_buffer
, 0);
3084 EXFUN (Fother_buffer
, 3);
3085 extern Lisp_Object
other_buffer_safely (Lisp_Object
);
3086 EXFUN (Foverlay_get
, 2);
3087 EXFUN (Fbuffer_modified_p
, 1);
3088 EXFUN (Fset_buffer_modified_p
, 1);
3089 EXFUN (Fkill_buffer
, 1);
3090 EXFUN (Fkill_all_local_variables
, 0);
3091 EXFUN (Fbuffer_enable_undo
, 1);
3092 EXFUN (Ferase_buffer
, 0);
3093 extern Lisp_Object Qpriority
, Qwindow
, Qbefore_string
, Qafter_string
;
3094 extern Lisp_Object
get_truename_buffer (Lisp_Object
);
3095 extern struct buffer
*all_buffers
;
3096 EXFUN (Fprevious_overlay_change
, 1);
3097 EXFUN (Fbuffer_file_name
, 1);
3098 extern void init_buffer_once (void);
3099 extern void init_buffer (void);
3100 extern void syms_of_buffer (void);
3101 extern void keys_of_buffer (void);
3103 /* Defined in marker.c */
3105 EXFUN (Fmarker_position
, 1);
3106 EXFUN (Fmarker_buffer
, 1);
3107 EXFUN (Fcopy_marker
, 2);
3108 EXFUN (Fset_marker
, 3);
3109 extern EMACS_INT
marker_position (Lisp_Object
);
3110 extern EMACS_INT
marker_byte_position (Lisp_Object
);
3111 extern void clear_charpos_cache (struct buffer
*);
3112 extern EMACS_INT
charpos_to_bytepos (EMACS_INT
);
3113 extern EMACS_INT
buf_charpos_to_bytepos (struct buffer
*, EMACS_INT
);
3114 extern EMACS_INT
buf_bytepos_to_charpos (struct buffer
*, EMACS_INT
);
3115 extern void unchain_marker (struct Lisp_Marker
*marker
);
3116 extern Lisp_Object
set_marker_restricted (Lisp_Object
, Lisp_Object
, Lisp_Object
);
3117 extern Lisp_Object
set_marker_both (Lisp_Object
, Lisp_Object
, EMACS_INT
, EMACS_INT
);
3118 extern Lisp_Object
set_marker_restricted_both (Lisp_Object
, Lisp_Object
,
3119 EMACS_INT
, EMACS_INT
);
3120 extern void syms_of_marker (void);
3122 /* Defined in fileio.c */
3124 extern Lisp_Object Qfile_error
;
3125 extern Lisp_Object Qfile_exists_p
;
3126 extern Lisp_Object Qfile_directory_p
;
3127 extern Lisp_Object Qinsert_file_contents
;
3128 extern Lisp_Object Qfile_name_history
;
3129 EXFUN (Ffind_file_name_handler
, 2);
3130 EXFUN (Ffile_name_as_directory
, 1);
3131 EXFUN (Fexpand_file_name
, 2);
3132 EXFUN (Ffile_name_nondirectory
, 1);
3133 EXFUN (Fsubstitute_in_file_name
, 1);
3134 EXFUN (Ffile_symlink_p
, 1);
3135 EXFUN (Fverify_visited_file_modtime
, 1);
3136 EXFUN (Ffile_exists_p
, 1);
3137 EXFUN (Ffile_name_absolute_p
, 1);
3138 EXFUN (Fdirectory_file_name
, 1);
3139 EXFUN (Ffile_name_directory
, 1);
3140 extern Lisp_Object
expand_and_dir_to_file (Lisp_Object
, Lisp_Object
);
3141 EXFUN (Ffile_accessible_directory_p
, 1);
3142 EXFUN (Funhandled_file_name_directory
, 1);
3143 EXFUN (Ffile_directory_p
, 1);
3144 EXFUN (Fwrite_region
, 7);
3145 EXFUN (Ffile_readable_p
, 1);
3146 EXFUN (Fread_file_name
, 6);
3147 extern Lisp_Object
close_file_unwind (Lisp_Object
);
3148 extern Lisp_Object
restore_point_unwind (Lisp_Object
);
3149 extern void report_file_error (const char *, Lisp_Object
) NO_RETURN
;
3150 extern int internal_delete_file (Lisp_Object
);
3151 extern void syms_of_fileio (void);
3152 extern Lisp_Object
make_temp_name (Lisp_Object
, int);
3153 extern Lisp_Object Qdelete_file
;
3155 /* Defined in search.c */
3156 extern void shrink_regexp_cache (void);
3157 EXFUN (Fstring_match
, 3);
3158 extern void restore_search_regs (void);
3159 EXFUN (Fmatch_data
, 3);
3160 EXFUN (Fset_match_data
, 2);
3161 EXFUN (Fmatch_beginning
, 1);
3162 EXFUN (Fmatch_end
, 1);
3163 extern void record_unwind_save_match_data (void);
3164 struct re_registers
;
3165 extern struct re_pattern_buffer
*compile_pattern (Lisp_Object
,
3166 struct re_registers
*,
3167 Lisp_Object
, int, int);
3168 extern EMACS_INT
fast_string_match (Lisp_Object
, Lisp_Object
);
3169 extern EMACS_INT
fast_c_string_match_ignore_case (Lisp_Object
, const char *);
3170 extern EMACS_INT
fast_string_match_ignore_case (Lisp_Object
, Lisp_Object
);
3171 extern EMACS_INT
fast_looking_at (Lisp_Object
, EMACS_INT
, EMACS_INT
,
3172 EMACS_INT
, EMACS_INT
, Lisp_Object
);
3173 extern EMACS_INT
scan_buffer (int, EMACS_INT
, EMACS_INT
, EMACS_INT
,
3175 extern EMACS_INT
scan_newline (EMACS_INT
, EMACS_INT
, EMACS_INT
, EMACS_INT
,
3177 extern EMACS_INT
find_next_newline (EMACS_INT
, int);
3178 extern EMACS_INT
find_next_newline_no_quit (EMACS_INT
, EMACS_INT
);
3179 extern EMACS_INT
find_before_next_newline (EMACS_INT
, EMACS_INT
, EMACS_INT
);
3180 extern void syms_of_search (void);
3181 extern void clear_regexp_cache (void);
3183 /* Defined in minibuf.c */
3185 extern Lisp_Object Qcompletion_ignore_case
;
3186 extern Lisp_Object Vminibuffer_list
;
3187 extern Lisp_Object last_minibuf_string
;
3188 EXFUN (Fcompleting_read
, 8);
3189 EXFUN (Fread_from_minibuffer
, 7);
3190 EXFUN (Fread_variable
, 2);
3191 EXFUN (Fread_buffer
, 3);
3192 EXFUN (Fread_minibuffer
, 2);
3193 EXFUN (Feval_minibuffer
, 2);
3194 EXFUN (Fread_string
, 5);
3195 EXFUN (Fassoc_string
, 3);
3196 extern Lisp_Object
get_minibuffer (EMACS_INT
);
3197 extern void init_minibuf_once (void);
3198 extern void syms_of_minibuf (void);
3200 /* Defined in callint.c */
3202 extern Lisp_Object Qminus
, Qplus
;
3203 extern Lisp_Object Qwhen
;
3204 extern Lisp_Object Qcall_interactively
, Qmouse_leave_buffer_hook
;
3205 EXFUN (Fprefix_numeric_value
, 1);
3206 extern void syms_of_callint (void);
3208 /* Defined in casefiddle.c */
3210 extern Lisp_Object Qidentity
;
3211 EXFUN (Fdowncase
, 1);
3213 EXFUN (Fupcase_region
, 2);
3214 EXFUN (Fupcase_initials
, 1);
3215 EXFUN (Fupcase_initials_region
, 2);
3216 extern void syms_of_casefiddle (void);
3217 extern void keys_of_casefiddle (void);
3219 /* Defined in casetab.c */
3221 EXFUN (Fset_case_table
, 1);
3222 EXFUN (Fset_standard_case_table
, 1);
3223 extern void init_casetab_once (void);
3224 extern void syms_of_casetab (void);
3226 /* Defined in keyboard.c */
3228 extern Lisp_Object echo_message_buffer
;
3229 extern struct kboard
*echo_kboard
;
3230 extern void cancel_echoing (void);
3231 extern Lisp_Object Qdisabled
, QCfilter
;
3232 extern Lisp_Object Qup
, Qdown
, Qbottom
;
3233 extern Lisp_Object Qtop
;
3234 extern int input_pending
;
3235 EXFUN (Fdiscard_input
, 0);
3236 EXFUN (Frecursive_edit
, 0);
3237 EXFUN (Ftop_level
, 0) NO_RETURN
;
3238 extern Lisp_Object
menu_bar_items (Lisp_Object
);
3239 extern Lisp_Object
tool_bar_items (Lisp_Object
, int *);
3240 extern void discard_mouse_events (void);
3241 EXFUN (Fevent_convert_list
, 1);
3242 EXFUN (Fread_key_sequence
, 5);
3243 EXFUN (Fset_input_interrupt_mode
, 1);
3244 EXFUN (Fset_input_mode
, 4);
3245 extern Lisp_Object pending_funcalls
;
3246 extern int detect_input_pending (void);
3247 extern int detect_input_pending_ignore_squeezables (void);
3248 extern int detect_input_pending_run_timers (int);
3249 extern void safe_run_hooks (Lisp_Object
);
3250 extern void cmd_error_internal (Lisp_Object
, const char *);
3251 extern Lisp_Object
command_loop_1 (void);
3252 extern Lisp_Object
recursive_edit_1 (void);
3253 extern void record_auto_save (void);
3255 extern void force_auto_save_soon (void);
3257 extern void init_keyboard (void);
3258 extern void syms_of_keyboard (void);
3259 extern void keys_of_keyboard (void);
3261 /* Defined in indent.c */
3262 EXFUN (Fvertical_motion
, 2);
3263 EXFUN (Findent_to
, 2);
3264 EXFUN (Fmove_to_column
, 2);
3265 extern EMACS_INT
current_column (void);
3266 extern void invalidate_current_column (void);
3267 extern int indented_beyond_p (EMACS_INT
, EMACS_INT
, EMACS_INT
);
3268 extern void syms_of_indent (void);
3270 /* Defined in frame.c */
3271 #ifdef HAVE_WINDOW_SYSTEM
3272 #endif /* HAVE_WINDOW_SYSTEM */
3273 extern Lisp_Object Qonly
;
3274 extern Lisp_Object Qvisible
;
3275 extern void store_frame_param (struct frame
*, Lisp_Object
, Lisp_Object
);
3276 extern void store_in_alist (Lisp_Object
*, Lisp_Object
, Lisp_Object
);
3277 extern Lisp_Object
do_switch_frame (Lisp_Object
, int, int, Lisp_Object
);
3279 extern Lisp_Object
get_frame_param (struct frame
*, Lisp_Object
);
3281 extern Lisp_Object
frame_buffer_predicate (Lisp_Object
);
3282 EXFUN (Fselect_frame
, 2);
3283 EXFUN (Fselected_frame
, 0);
3284 EXFUN (Fmake_frame_visible
, 1);
3285 EXFUN (Ficonify_frame
, 1);
3286 EXFUN (Fframe_parameter
, 2);
3287 EXFUN (Fmodify_frame_parameters
, 2);
3288 EXFUN (Fraise_frame
, 1);
3289 EXFUN (Fredirect_frame_focus
, 2);
3290 extern void frames_discard_buffer (Lisp_Object
);
3291 extern void syms_of_frame (void);
3293 /* Defined in emacs.c */
3294 extern char **initial_argv
;
3295 extern int initial_argc
;
3296 #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS)
3297 extern int display_arg
;
3299 extern Lisp_Object
decode_env_path (const char *, const char *);
3300 extern Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
3301 extern Lisp_Object Qfile_name_handler_alist
;
3302 #ifdef FLOAT_CATCH_SIGILL
3303 extern void fatal_error_signal (int);
3305 extern Lisp_Object Qkill_emacs
;
3306 EXFUN (Fkill_emacs
, 1) NO_RETURN
;
3308 void fixup_locale (void);
3309 void synchronize_system_messages_locale (void);
3310 void synchronize_system_time_locale (void);
3312 #define setlocale(category, locale)
3313 #define fixup_locale()
3314 #define synchronize_system_messages_locale()
3315 #define synchronize_system_time_locale()
3317 void shut_down_emacs (int, int, Lisp_Object
);
3318 /* Nonzero means don't do interactive redisplay and don't change tty modes. */
3319 extern int noninteractive
;
3321 /* Nonzero means remove site-lisp directories from load-path. */
3322 extern int no_site_lisp
;
3324 /* Pipe used to send exit notification to the daemon parent at
3326 extern int daemon_pipe
[2];
3327 #define IS_DAEMON (daemon_pipe[1] != 0)
3329 /* Nonzero means don't do use window-system-specific display code. */
3330 extern int inhibit_window_system
;
3331 /* Nonzero means that a filter or a sentinel is running. */
3332 extern int running_asynch_code
;
3334 /* Defined in process.c. */
3335 extern Lisp_Object QCtype
, Qlocal
;
3336 EXFUN (Fget_buffer_process
, 1);
3337 EXFUN (Fprocess_status
, 1);
3338 EXFUN (Fkill_process
, 2);
3339 EXFUN (Fwaiting_for_user_input_p
, 0);
3340 extern Lisp_Object Qprocessp
;
3341 extern void kill_buffer_processes (Lisp_Object
);
3342 extern int wait_reading_process_output (int, int, int, int,
3344 struct Lisp_Process
*,
3346 extern void add_keyboard_wait_descriptor (int);
3347 extern void delete_keyboard_wait_descriptor (int);
3349 extern void add_gpm_wait_descriptor (int);
3350 extern void delete_gpm_wait_descriptor (int);
3352 extern void close_process_descs (void);
3353 extern void init_process (void);
3354 extern void syms_of_process (void);
3355 extern void setup_process_coding_systems (Lisp_Object
);
3357 EXFUN (Fcall_process
, MANY
);
3358 extern int child_setup (int, int, int, char **, int, Lisp_Object
)
3363 extern void init_callproc_1 (void);
3364 extern void init_callproc (void);
3365 extern void set_initial_environment (void);
3366 extern void syms_of_callproc (void);
3368 /* Defined in doc.c */
3369 extern Lisp_Object Qfunction_documentation
;
3370 EXFUN (Fsubstitute_command_keys
, 1);
3371 extern Lisp_Object
read_doc_string (Lisp_Object
);
3372 extern Lisp_Object
get_doc_string (Lisp_Object
, int, int);
3373 extern void syms_of_doc (void);
3374 extern int read_bytecode_char (int);
3376 /* Defined in bytecode.c */
3377 extern Lisp_Object Qbytecode
;
3378 extern void syms_of_bytecode (void);
3379 extern struct byte_stack
*byte_stack_list
;
3381 extern void mark_byte_stack (void);
3383 extern void unmark_byte_stack (void);
3384 extern Lisp_Object
exec_byte_code (Lisp_Object
, Lisp_Object
, Lisp_Object
,
3385 Lisp_Object
, ptrdiff_t, Lisp_Object
*);
3387 /* Defined in macros.c */
3388 extern Lisp_Object Qexecute_kbd_macro
;
3389 EXFUN (Fexecute_kbd_macro
, 3);
3390 EXFUN (Fcancel_kbd_macro_events
, 0);
3391 extern void init_macros (void);
3392 extern void syms_of_macros (void);
3394 /* Defined in undo.c */
3395 extern Lisp_Object Qapply
;
3396 extern Lisp_Object Qinhibit_read_only
;
3397 EXFUN (Fundo_boundary
, 0);
3398 extern void truncate_undo_list (struct buffer
*);
3399 extern void record_marker_adjustment (Lisp_Object
, EMACS_INT
);
3400 extern void record_insert (EMACS_INT
, EMACS_INT
);
3401 extern void record_delete (EMACS_INT
, Lisp_Object
);
3402 extern void record_first_change (void);
3403 extern void record_change (EMACS_INT
, EMACS_INT
);
3404 extern void record_property_change (EMACS_INT
, EMACS_INT
,
3405 Lisp_Object
, Lisp_Object
,
3407 extern void syms_of_undo (void);
3408 /* Defined in textprop.c */
3409 extern Lisp_Object Qfont
, Qmouse_face
;
3410 extern Lisp_Object Qinsert_in_front_hooks
, Qinsert_behind_hooks
;
3411 extern Lisp_Object Qfront_sticky
, Qrear_nonsticky
;
3412 extern Lisp_Object Qminibuffer_prompt
;
3414 EXFUN (Fnext_single_property_change
, 4);
3415 EXFUN (Fnext_single_char_property_change
, 4);
3416 EXFUN (Fprevious_single_property_change
, 4);
3417 EXFUN (Fget_text_property
, 3);
3418 EXFUN (Fput_text_property
, 5);
3419 EXFUN (Fprevious_char_property_change
, 2);
3420 EXFUN (Fnext_char_property_change
, 2);
3421 extern void report_interval_modification (Lisp_Object
, Lisp_Object
);
3423 /* Defined in menu.c */
3424 extern void syms_of_menu (void);
3426 /* Defined in xmenu.c */
3427 EXFUN (Fx_popup_menu
, 2);
3428 EXFUN (Fx_popup_dialog
, 3);
3429 extern void syms_of_xmenu (void);
3431 /* Defined in termchar.h */
3432 struct tty_display_info
;
3434 /* Defined in termhooks.h */
3437 /* Defined in sysdep.c */
3438 #ifndef HAVE_GET_CURRENT_DIR_NAME
3439 extern char *get_current_dir_name (void);
3441 extern void stuff_char (char c
);
3442 extern void init_sigio (int);
3443 extern void sys_subshell (void);
3444 extern void sys_suspend (void);
3445 extern void discard_tty_input (void);
3446 extern void init_sys_modes (struct tty_display_info
*);
3447 extern void reset_sys_modes (struct tty_display_info
*);
3448 extern void init_all_sys_modes (void);
3449 extern void reset_all_sys_modes (void);
3450 extern void wait_for_termination (int);
3451 extern void interruptible_wait_for_termination (int);
3452 extern void flush_pending_output (int);
3453 extern void child_setup_tty (int);
3454 extern void setup_pty (int);
3455 extern int set_window_size (int, int, int);
3456 extern EMACS_INT
get_random (void);
3457 extern void seed_random (long);
3458 extern int emacs_open (const char *, int, int);
3459 extern int emacs_close (int);
3460 extern EMACS_INT
emacs_read (int, char *, EMACS_INT
);
3461 extern EMACS_INT
emacs_write (int, const char *, EMACS_INT
);
3462 enum { READLINK_BUFSIZE
= 1024 };
3463 extern char *emacs_readlink (const char *, char [READLINK_BUFSIZE
]);
3465 EXFUN (Funlock_buffer
, 0);
3466 extern void unlock_all_files (void);
3467 extern void lock_file (Lisp_Object
);
3468 extern void unlock_file (Lisp_Object
);
3469 extern void unlock_buffer (struct buffer
*);
3470 extern void syms_of_filelock (void);
3471 extern void init_filelock (void);
3473 /* Defined in sound.c */
3474 extern void syms_of_sound (void);
3475 extern void init_sound (void);
3477 /* Defined in category.c */
3478 extern void init_category_once (void);
3479 extern Lisp_Object
char_category_set (int);
3480 extern void syms_of_category (void);
3482 /* Defined in ccl.c */
3483 extern void syms_of_ccl (void);
3485 /* Defined in dired.c */
3486 extern void syms_of_dired (void);
3487 extern Lisp_Object
directory_files_internal (Lisp_Object
, Lisp_Object
,
3488 Lisp_Object
, Lisp_Object
,
3491 /* Defined in term.c */
3492 extern int *char_ins_del_vector
;
3493 extern void mark_ttys (void);
3494 extern void syms_of_term (void);
3495 extern void fatal (const char *msgid
, ...)
3496 NO_RETURN
ATTRIBUTE_FORMAT_PRINTF (1, 2);
3498 /* Defined in terminal.c */
3499 EXFUN (Fframe_terminal
, 1);
3500 EXFUN (Fdelete_terminal
, 2);
3501 extern void syms_of_terminal (void);
3503 /* Defined in font.c */
3504 extern void syms_of_font (void);
3505 extern void init_font (void);
3507 #ifdef HAVE_WINDOW_SYSTEM
3508 /* Defined in fontset.c */
3509 extern void syms_of_fontset (void);
3511 /* Defined in xfns.c, w32fns.c, or macfns.c */
3512 extern Lisp_Object Qfont_param
;
3513 EXFUN (Fxw_display_color_p
, 1);
3514 EXFUN (Fx_focus_frame
, 1);
3517 /* Defined in xfaces.c */
3518 extern Lisp_Object Qdefault
, Qtool_bar
, Qfringe
;
3519 extern Lisp_Object Qheader_line
, Qscroll_bar
, Qcursor
;
3520 extern Lisp_Object Qmode_line_inactive
;
3521 extern Lisp_Object Qface
;
3522 extern Lisp_Object Qnormal
;
3523 extern Lisp_Object QCfamily
, QCweight
, QCslant
;
3524 extern Lisp_Object QCheight
, QCname
, QCwidth
, QCforeground
, QCbackground
;
3525 extern Lisp_Object Vface_alternative_font_family_alist
;
3526 extern Lisp_Object Vface_alternative_font_registry_alist
;
3527 EXFUN (Fclear_face_cache
, 1);
3528 EXFUN (Fx_load_color_file
, 1);
3529 extern void syms_of_xfaces (void);
3531 #ifdef HAVE_X_WINDOWS
3532 /* Defined in xfns.c */
3533 extern void syms_of_xfns (void);
3535 /* Defined in xsmfns.c */
3536 extern void syms_of_xsmfns (void);
3538 /* Defined in xselect.c */
3539 extern void syms_of_xselect (void);
3541 /* Defined in xterm.c */
3542 extern void syms_of_xterm (void);
3543 #endif /* HAVE_X_WINDOWS */
3545 #ifdef HAVE_WINDOW_SYSTEM
3546 /* Defined in xterm.c, nsterm.m, w32term.c */
3547 extern char *x_get_keysym_name (int);
3548 #endif /* HAVE_WINDOW_SYSTEM */
3551 /* Defined in msdos.c */
3552 EXFUN (Fmsdos_downcase_filename
, 1);
3556 /* Defined in xml.c */
3557 extern void syms_of_xml (void);
3558 extern void xml_cleanup_parser (void);
3562 /* Defined in (x|w32)fns.c, nsfns.m... */
3563 extern int have_menus_p (void);
3567 /* Defined in dbusbind.c */
3568 void syms_of_dbusbind (void);
3572 /* Defined in msdos.c, w32.c */
3573 extern char *emacs_root_dir (void);
3576 /* Nonzero means Emacs has already been initialized.
3577 Used during startup to detect startup of dumped Emacs. */
3578 extern int initialized
;
3580 extern int immediate_quit
; /* Nonzero means ^G can quit instantly */
3582 extern POINTER_TYPE
*xmalloc (size_t);
3583 extern POINTER_TYPE
*xrealloc (POINTER_TYPE
*, size_t);
3584 extern void xfree (POINTER_TYPE
*);
3585 extern void *xnmalloc (ptrdiff_t, ptrdiff_t);
3586 extern void *xnrealloc (void *, ptrdiff_t, ptrdiff_t);
3587 extern void *xpalloc (void *, ptrdiff_t *, ptrdiff_t, ptrdiff_t, ptrdiff_t);
3589 extern char *xstrdup (const char *);
3591 extern char *egetenv (const char *);
3593 /* Set up the name of the machine we're running on. */
3594 extern void init_system_name (void);
3596 /* Some systems (e.g., NT) use a different path separator than Unix,
3597 in addition to a device separator. Set the path separator
3598 to '/', and don't test for a device separator in IS_ANY_SEP. */
3600 #define DIRECTORY_SEP '/'
3601 #ifndef IS_DIRECTORY_SEP
3602 #define IS_DIRECTORY_SEP(_c_) ((_c_) == DIRECTORY_SEP)
3604 #ifndef IS_DEVICE_SEP
3606 #define IS_DEVICE_SEP(_c_) 0
3608 #define IS_DEVICE_SEP(_c_) ((_c_) == DEVICE_SEP)
3612 #define IS_ANY_SEP(_c_) (IS_DIRECTORY_SEP (_c_))
3615 #define SWITCH_ENUM_CAST(x) (x)
3617 /* Use this to suppress gcc's warnings. */
3620 /* Use CODE only if lint checking is in effect. */
3621 # define IF_LINT(Code) Code
3623 /* Assume that the expression COND is true. This differs in intent
3624 from 'assert', as it is a message from the programmer to the compiler. */
3625 # define lint_assume(cond) ((cond) ? (void) 0 : abort ())
3628 # define IF_LINT(Code) /* empty */
3629 # define lint_assume(cond) ((void) (0 && (cond)))
3632 /* The ubiquitous min and max macros. */
3638 #define min(a, b) ((a) < (b) ? (a) : (b))
3639 #define max(a, b) ((a) > (b) ? (a) : (b))
3641 /* We used to use `abs', but that clashes with system headers on some
3642 platforms, and using a name reserved by Standard C is a bad idea
3645 #define eabs(x) ((x) < 0 ? -(x) : (x))
3648 /* Return a fixnum or float, depending on whether VAL fits in a Lisp
3651 #define make_fixnum_or_float(val) \
3652 (FIXNUM_OVERFLOW_P (val) ? make_float (val) : make_number (val))
3655 /* Checks the `cycle check' variable CHECK to see if it indicates that
3656 EL is part of a cycle; CHECK must be either Qnil or a value returned
3657 by an earlier use of CYCLE_CHECK. SUSPICIOUS is the number of
3658 elements after which a cycle might be suspected; after that many
3659 elements, this macro begins consing in order to keep more precise
3662 Returns nil if a cycle was detected, otherwise a new value for CHECK
3665 CHECK is evaluated multiple times, EL and SUSPICIOUS 0 or 1 times, so
3666 the caller should make sure that's ok. */
3668 #define CYCLE_CHECK(check, el, suspicious) \
3671 : (INTEGERP (check) \
3672 ? (XFASTINT (check) < (suspicious) \
3673 ? make_number (XFASTINT (check) + 1) \
3674 : Fcons (el, Qnil)) \
3675 : (!NILP (Fmemq ((el), (check))) \
3677 : Fcons ((el), (check)))))
3680 /* SAFE_ALLOCA normally allocates memory on the stack, but if size is
3681 larger than MAX_ALLOCA, use xmalloc to avoid overflowing the stack. */
3683 #define MAX_ALLOCA 16*1024
3685 extern Lisp_Object
safe_alloca_unwind (Lisp_Object
);
3687 #define USE_SAFE_ALLOCA \
3688 int sa_count = (int) SPECPDL_INDEX (), sa_must_free = 0
3690 /* SAFE_ALLOCA allocates a simple buffer. */
3692 #define SAFE_ALLOCA(buf, type, size) \
3694 if ((size) < MAX_ALLOCA) \
3695 buf = (type) alloca (size); \
3698 buf = (type) xmalloc (size); \
3700 record_unwind_protect (safe_alloca_unwind, \
3701 make_save_value (buf, 0)); \
3705 /* SAFE_NALLOCA sets BUF to a newly allocated array of MULTIPLIER *
3706 NITEMS items, each of the same type as *BUF. MULTIPLIER must
3707 positive. The code is tuned for MULTIPLIER being a constant. */
3709 #define SAFE_NALLOCA(buf, multiplier, nitems) \
3711 if ((nitems) <= MAX_ALLOCA / sizeof *(buf) / (multiplier)) \
3712 (buf) = alloca (sizeof *(buf) * (multiplier) * (nitems)); \
3715 (buf) = xnmalloc (nitems, sizeof *(buf) * (multiplier)); \
3717 record_unwind_protect (safe_alloca_unwind, \
3718 make_save_value (buf, 0)); \
3722 /* SAFE_FREE frees xmalloced memory and enables GC as needed. */
3724 #define SAFE_FREE() \
3726 if (sa_must_free) { \
3728 unbind_to (sa_count, Qnil); \
3733 /* SAFE_ALLOCA_LISP allocates an array of Lisp_Objects. */
3735 #define SAFE_ALLOCA_LISP(buf, nelt) \
3737 if ((nelt) < MAX_ALLOCA / sizeof (Lisp_Object)) \
3738 buf = (Lisp_Object *) alloca ((nelt) * sizeof (Lisp_Object)); \
3739 else if ((nelt) < min (PTRDIFF_MAX, SIZE_MAX) / sizeof (Lisp_Object)) \
3742 buf = (Lisp_Object *) xmalloc ((nelt) * sizeof (Lisp_Object)); \
3743 arg_ = make_save_value (buf, nelt); \
3744 XSAVE_VALUE (arg_)->dogc = 1; \
3746 record_unwind_protect (safe_alloca_unwind, arg_); \
3749 memory_full (SIZE_MAX); \
3753 #include "globals.h"
3755 #endif /* EMACS_LISP_H */