1 /* Fundamental definitions for GNU Emacs Lisp interpreter.
2 Copyright (C) 1985-1987, 1993-1995, 1997-2012
3 Free Software Foundation, Inc.
5 This file is part of GNU Emacs.
7 GNU Emacs is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation, either version 3 of the License, or
10 (at your option) any later version.
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
30 /* Use the configure flag --enable-checking[=LIST] to enable various
31 types of run time checks for Lisp objects. */
33 #ifdef GC_CHECK_CONS_LIST
34 extern void check_cons_list (void);
35 #define CHECK_CONS_LIST() check_cons_list ()
37 #define CHECK_CONS_LIST() ((void) 0)
40 /* Temporarily disable wider-than-pointer integers until they're tested more.
41 Build with CFLAGS='-DWIDE_EMACS_INT' to try them out. */
42 /* #undef WIDE_EMACS_INT */
44 /* EMACS_INT - signed integer wide enough to hold an Emacs value
45 EMACS_INT_MAX - maximum value of EMACS_INT; can be used in #if
46 pI - printf length modifier for EMACS_INT
47 EMACS_UINT - unsigned variant of EMACS_INT */
49 # if LONG_MAX < LLONG_MAX && defined WIDE_EMACS_INT
50 # define EMACS_INT long long
51 # define EMACS_INT_MAX LLONG_MAX
53 # elif INT_MAX < LONG_MAX
54 # define EMACS_INT long
55 # define EMACS_INT_MAX LONG_MAX
58 # define EMACS_INT int
59 # define EMACS_INT_MAX INT_MAX
63 #define EMACS_UINT unsigned EMACS_INT
65 /* Number of bits in some machine integer types. */
68 BITS_PER_CHAR
= CHAR_BIT
,
69 BITS_PER_SHORT
= CHAR_BIT
* sizeof (short),
70 BITS_PER_INT
= CHAR_BIT
* sizeof (int),
71 BITS_PER_LONG
= CHAR_BIT
* sizeof (long int),
72 BITS_PER_EMACS_INT
= CHAR_BIT
* sizeof (EMACS_INT
)
75 /* printmax_t and uprintmax_t are types for printing large integers.
76 These are the widest integers that are supported for printing.
77 pMd etc. are conversions for printing them.
78 On C99 hosts, there's no problem, as even the widest integers work.
79 Fall back on EMACS_INT on pre-C99 hosts. */
81 typedef intmax_t printmax_t
;
82 typedef uintmax_t uprintmax_t
;
86 typedef EMACS_INT printmax_t
;
87 typedef EMACS_UINT uprintmax_t
;
92 /* Use pD to format ptrdiff_t values, which suffice for indexes into
93 buffers and strings. Emacs never allocates objects larger than
94 PTRDIFF_MAX bytes, as they cause problems with pointer subtraction.
95 In C99, pD can always be "t"; configure it here for the sake of
96 pre-C99 libraries such as glibc 2.0 and Solaris 8. */
97 #if PTRDIFF_MAX == INT_MAX
99 #elif PTRDIFF_MAX == LONG_MAX
101 #elif PTRDIFF_MAX == LLONG_MAX
107 /* Extra internal type checking? */
109 #ifdef ENABLE_CHECKING
111 extern void die (const char *, const char *, int) NO_RETURN
;
113 /* The suppress_checking variable is initialized to 0 in alloc.c. Set
114 it to 1 using a debugger to temporarily disable aborting on
115 detected internal inconsistencies or error conditions.
117 Testing suppress_checking after the supplied condition ensures that
118 the side effects produced by CHECK will be consistent, independent
119 of whether ENABLE_CHECKING is defined, or whether the checks are
120 suppressed at run time.
122 In some cases, a good compiler may be able to optimize away the
123 CHECK macro altogether, e.g., if XSTRING (x) uses CHECK to test
124 STRINGP (x), but a particular use of XSTRING is invoked only after
125 testing that STRINGP (x) is true, making the test redundant. */
127 extern int suppress_checking EXTERNALLY_VISIBLE
;
129 #define CHECK(check,msg) (((check) || suppress_checking \
131 : die ((msg), __FILE__, __LINE__)), \
135 /* Produce same side effects and result, but don't complain. */
136 #define CHECK(check,msg) ((check),0)
140 /* Define an Emacs version of "assert", since some system ones are
142 #ifndef ENABLE_CHECKING
143 #define eassert(X) ((void) (0 && (X))) /* Check that X compiles. */
144 #else /* ENABLE_CHECKING */
145 #if defined (__GNUC__) && __GNUC__ >= 2 && defined (__STDC__)
146 #define eassert(cond) CHECK (cond, "assertion failed: " #cond)
148 #define eassert(cond) CHECK (cond, "assertion failed")
150 #endif /* ENABLE_CHECKING */
152 /* Use the configure flag --enable-check-lisp-object-type to make
153 Lisp_Object use a struct type instead of the default int. The flag
154 causes CHECK_LISP_OBJECT_TYPE to be defined. */
156 /***** Select the tagging scheme. *****/
157 /* The following option controls the tagging scheme:
158 - USE_LSB_TAG means that we can assume the least 3 bits of pointers are
159 always 0, and we can thus use them to hold tag bits, without
160 restricting our addressing space.
162 If ! USE_LSB_TAG, then use the top 3 bits for tagging, thus
163 restricting our possible address range.
165 USE_LSB_TAG not only requires the least 3 bits of pointers returned by
166 malloc to be 0 but also needs to be able to impose a mult-of-8 alignment
167 on the few static Lisp_Objects used: all the defsubr as well
168 as the two special buffers buffer_defaults and buffer_local_symbols. */
170 /* First, try and define DECL_ALIGN(type,var) which declares a static
171 variable VAR of type TYPE with the added requirement that it be
175 #define VALBITS (BITS_PER_EMACS_INT - GCTYPEBITS)
177 /* The maximum value that can be stored in a EMACS_INT, assuming all
178 bits other than the type bits contribute to a nonnegative signed value.
179 This can be used in #if, e.g., '#if VAL_MAX < UINTPTR_MAX' below. */
180 #define VAL_MAX (EMACS_INT_MAX >> (GCTYPEBITS - 1))
182 #ifndef NO_DECL_ALIGN
184 # if HAVE_ATTRIBUTE_ALIGNED
185 # define DECL_ALIGN(type, var) \
186 type __attribute__ ((__aligned__ (1 << GCTYPEBITS))) var
187 # elif defined(_MSC_VER)
188 # define ALIGN_GCTYPEBITS 8
189 # if (1 << GCTYPEBITS) != ALIGN_GCTYPEBITS
190 # error ALIGN_GCTYPEBITS is wrong!
192 # define DECL_ALIGN(type, var) \
193 type __declspec(align(ALIGN_GCTYPEBITS)) var
195 /* What directives do other compilers use? */
200 /* Unless otherwise specified, use USE_LSB_TAG on systems where: */
202 /* 1. We know malloc returns a multiple of 8. */
203 # if (defined GNU_MALLOC || defined DOUG_LEA_MALLOC || defined __GLIBC__ \
204 || defined DARWIN_OS || defined __sun)
205 /* 2. We can specify multiple-of-8 alignment on static variables. */
207 /* 3. Pointers-as-ints exceed VAL_MAX.
208 On hosts where pointers-as-ints do not exceed VAL_MAX, USE_LSB_TAG is:
209 a. unnecessary, because the top bits of an EMACS_INT are unused, and
210 b. slower, because it typically requires extra masking.
211 So, default USE_LSB_TAG to 1 only on hosts where it might be useful. */
212 # if VAL_MAX < UINTPTR_MAX
213 # define USE_LSB_TAG 1
219 # define USE_LSB_TAG 0
222 /* If we cannot use 8-byte alignment, make DECL_ALIGN a no-op. */
225 # error "USE_LSB_TAG used without defining DECL_ALIGN"
227 # define DECL_ALIGN(type, var) type var
231 /* Define the fundamental Lisp data structures. */
233 /* This is the set of Lisp data types. */
235 /* Lisp integers use 2 tags, to give them one extra bit, thus
236 extending their range from, e.g., -2^28..2^28-1 to -2^29..2^29-1. */
237 #define INTTYPEBITS (GCTYPEBITS - 1)
238 #define FIXNUM_BITS (VALBITS + 1)
239 #define INTMASK (EMACS_INT_MAX >> (INTTYPEBITS - 1))
240 #define LISP_INT_TAG Lisp_Int0
241 #define case_Lisp_Int case Lisp_Int0: case Lisp_Int1
242 #define LISP_INT1_TAG (USE_LSB_TAG ? 1 << INTTYPEBITS : 1)
243 #define LISP_STRING_TAG (5 - LISP_INT1_TAG)
244 #define LISP_INT_TAG_P(x) (((x) & ~LISP_INT1_TAG) == 0)
246 /* Stolen from GDB. The only known compiler that doesn't support
247 enums in bitfields is MSVC. */
249 #define ENUM_BF(TYPE) unsigned int
251 #define ENUM_BF(TYPE) enum TYPE
257 /* Integer. XINT (obj) is the integer value. */
259 Lisp_Int1
= LISP_INT1_TAG
,
261 /* Symbol. XSYMBOL (object) points to a struct Lisp_Symbol. */
264 /* Miscellaneous. XMISC (object) points to a union Lisp_Misc,
265 whose first member indicates the subtype. */
268 /* String. XSTRING (object) points to a struct Lisp_String.
269 The length of the string, and its contents, are stored therein. */
270 Lisp_String
= LISP_STRING_TAG
,
272 /* Vector of Lisp objects, or something resembling it.
273 XVECTOR (object) points to a struct Lisp_Vector, which contains
274 the size and contents. The size field also contains the type
275 information, if it's not a real vector object. */
278 /* Cons. XCONS (object) points to a struct Lisp_Cons. */
284 /* This is the set of data types that share a common structure.
285 The first member of the structure is a type code from this set.
286 The enum values are arbitrary, but we'll use large numbers to make it
287 more likely that we'll spot the error if a random word in memory is
288 mistakenly interpreted as a Lisp_Misc. */
291 Lisp_Misc_Free
= 0x5eab,
294 Lisp_Misc_Save_Value
,
295 /* Currently floats are not a misc type,
296 but let's define this in case we want to change that. */
298 /* This is not a type code. It is for range checking. */
302 /* These are the types of forwarding objects used in the value slot
303 of symbols for special built-in variables whose value is stored in
307 Lisp_Fwd_Int
, /* Fwd to a C `int' variable. */
308 Lisp_Fwd_Bool
, /* Fwd to a C boolean var. */
309 Lisp_Fwd_Obj
, /* Fwd to a C Lisp_Object variable. */
310 Lisp_Fwd_Buffer_Obj
, /* Fwd to a Lisp_Object field of buffers. */
311 Lisp_Fwd_Kboard_Obj
, /* Fwd to a Lisp_Object field of kboards. */
314 #ifdef CHECK_LISP_OBJECT_TYPE
316 typedef struct { EMACS_INT i
; } Lisp_Object
;
319 static inline Lisp_Object
322 Lisp_Object o
= { i
};
326 static inline Lisp_Object
327 LISP_MAKE_RVALUE (Lisp_Object o
)
332 #define LISP_INITIALLY_ZERO {0}
334 #else /* CHECK_LISP_OBJECT_TYPE */
336 /* If a struct type is not wanted, define Lisp_Object as just a number. */
338 typedef EMACS_INT Lisp_Object
;
341 #define LISP_MAKE_RVALUE(o) (0+(o))
342 #define LISP_INITIALLY_ZERO 0
343 #endif /* CHECK_LISP_OBJECT_TYPE */
345 /* In the size word of a vector, this bit means the vector has been marked. */
347 #define ARRAY_MARK_FLAG PTRDIFF_MIN
349 /* In the size word of a struct Lisp_Vector, this bit means it's really
350 some other vector-like object. */
351 #define PSEUDOVECTOR_FLAG (PTRDIFF_MAX - PTRDIFF_MAX / 2)
353 /* In a pseudovector, the size field actually contains a word with one
354 PSEUDOVECTOR_FLAG bit set, and exactly one of the following bits to
355 indicate the actual type.
356 We use a bitset, even tho only one of the bits can be set at any
357 particular time just so as to be able to use micro-optimizations such as
358 testing membership of a particular subset of pseudovectors in Fequal.
359 It is not crucial, but there are plenty of bits here, so why not do it? */
362 PVEC_NORMAL_VECTOR
= 0,
363 PVEC_PROCESS
= 0x200,
365 PVEC_COMPILED
= 0x800,
366 PVEC_WINDOW
= 0x1000,
367 PVEC_WINDOW_CONFIGURATION
= 0x2000,
369 PVEC_CHAR_TABLE
= 0x8000,
370 PVEC_BOOL_VECTOR
= 0x10000,
371 PVEC_BUFFER
= 0x20000,
372 PVEC_HASH_TABLE
= 0x40000,
373 PVEC_TERMINAL
= 0x80000,
374 PVEC_SUB_CHAR_TABLE
= 0x100000,
375 PVEC_FONT
= 0x200000,
376 PVEC_OTHER
= 0x400000,
377 PVEC_TYPE_MASK
= 0x7ffe00
379 #if 0 /* This is used to make the value of PSEUDOVECTOR_FLAG available to
380 GDB. It doesn't work on OS Alpha. Moved to a variable in
382 PVEC_FLAG
= PSEUDOVECTOR_FLAG
386 /* For convenience, we also store the number of elements in these bits.
387 Note that this size is not necessarily the memory-footprint size, but
388 only the number of Lisp_Object fields (that need to be traced by the GC).
389 The distinction is used e.g. by Lisp_Process which places extra
390 non-Lisp_Object fields at the end of the structure. */
391 #define PSEUDOVECTOR_SIZE_MASK 0x1ff
393 /* Number of bits to put in each character in the internal representation
394 of bool vectors. This should not vary across implementations. */
395 #define BOOL_VECTOR_BITS_PER_CHAR 8
397 /* These macros extract various sorts of values from a Lisp_Object.
398 For example, if tem is a Lisp_Object whose type is Lisp_Cons,
399 XCONS (tem) is the struct Lisp_Cons * pointing to the memory for that cons. */
401 /* Return a perfect hash of the Lisp_Object representation. */
402 #define XHASH(a) XLI (a)
406 #define TYPEMASK ((1 << GCTYPEBITS) - 1)
407 #define XTYPE(a) ((enum Lisp_Type) (XLI (a) & TYPEMASK))
408 #define XINT(a) (XLI (a) >> INTTYPEBITS)
409 #define XUINT(a) ((EMACS_UINT) XLI (a) >> INTTYPEBITS)
410 #define make_number(N) XIL ((EMACS_INT) (N) << INTTYPEBITS)
411 #define XSET(var, type, ptr) \
412 (eassert (XTYPE (XIL ((intptr_t) (ptr))) == 0), /* Check alignment. */ \
413 (var) = XIL ((type) | (intptr_t) (ptr)))
415 #define XPNTR(a) ((intptr_t) (XLI (a) & ~TYPEMASK))
416 #define XUNTAG(a, type) ((intptr_t) (XLI (a) - (type)))
418 #else /* not USE_LSB_TAG */
420 #define VALMASK VAL_MAX
422 #define XTYPE(a) ((enum Lisp_Type) ((EMACS_UINT) XLI (a) >> VALBITS))
424 /* For integers known to be positive, XFASTINT provides fast retrieval
425 and XSETFASTINT provides fast storage. This takes advantage of the
426 fact that Lisp integers have zero-bits in their tags. */
427 #define XFASTINT(a) (XLI (a) + 0)
428 #define XSETFASTINT(a, b) ((a) = XIL (b))
430 /* Extract the value of a Lisp_Object as a (un)signed integer. */
432 #define XINT(a) (XLI (a) << INTTYPEBITS >> INTTYPEBITS)
433 #define XUINT(a) ((EMACS_UINT) (XLI (a) & INTMASK))
434 #define make_number(N) XIL ((EMACS_INT) (N) & INTMASK)
436 #define XSET(var, type, ptr) \
437 ((var) = XIL ((EMACS_INT) ((EMACS_UINT) (type) << VALBITS) \
438 + ((intptr_t) (ptr) & VALMASK)))
441 /* DATA_SEG_BITS forces extra bits to be or'd in with any pointers
442 which were stored in a Lisp_Object */
443 #define XPNTR(a) ((uintptr_t) ((XLI (a) & VALMASK)) | DATA_SEG_BITS))
445 #define XPNTR(a) ((uintptr_t) (XLI (a) & VALMASK))
448 #endif /* not USE_LSB_TAG */
450 /* For integers known to be positive, XFASTINT sometimes provides
451 faster retrieval and XSETFASTINT provides faster storage.
452 If not, fallback on the non-accelerated path. */
454 # define XFASTINT(a) (XINT (a))
455 # define XSETFASTINT(a, b) (XSETINT (a, b))
458 /* Extract the pointer value of the Lisp object A, under the
459 assumption that A's type is TYPE. This is a fallback
460 implementation if nothing faster is available. */
462 # define XUNTAG(a, type) XPNTR (a)
465 #define EQ(x, y) (XHASH (x) == XHASH (y))
467 /* Largest and smallest representable fixnum values. These are the C
469 #define MOST_POSITIVE_FIXNUM (EMACS_INT_MAX >> INTTYPEBITS)
470 #define MOST_NEGATIVE_FIXNUM (-1 - MOST_POSITIVE_FIXNUM)
472 /* Value is non-zero if I doesn't fit into a Lisp fixnum. It is
473 written this way so that it also works if I is of unsigned
474 type or if I is a NaN. */
476 #define FIXNUM_OVERFLOW_P(i) \
477 (! ((0 <= (i) || MOST_NEGATIVE_FIXNUM <= (i)) && (i) <= MOST_POSITIVE_FIXNUM))
479 static inline ptrdiff_t
480 clip_to_bounds (ptrdiff_t lower
, EMACS_INT num
, ptrdiff_t upper
)
482 return num
< lower
? lower
: num
<= upper
? num
: upper
;
485 /* Extract a value or address from a Lisp_Object. */
487 #define XCONS(a) (eassert (CONSP (a)), \
488 (struct Lisp_Cons *) XUNTAG (a, Lisp_Cons))
489 #define XVECTOR(a) (eassert (VECTORLIKEP (a)), \
490 (struct Lisp_Vector *) XUNTAG (a, Lisp_Vectorlike))
491 #define XSTRING(a) (eassert (STRINGP (a)), \
492 (struct Lisp_String *) XUNTAG (a, Lisp_String))
493 #define XSYMBOL(a) (eassert (SYMBOLP (a)), \
494 (struct Lisp_Symbol *) XUNTAG (a, Lisp_Symbol))
495 #define XFLOAT(a) (eassert (FLOATP (a)), \
496 (struct Lisp_Float *) XUNTAG (a, Lisp_Float))
500 #define XMISC(a) ((union Lisp_Misc *) XUNTAG (a, Lisp_Misc))
501 #define XMISCANY(a) (eassert (MISCP (a)), &(XMISC (a)->u_any))
502 #define XMISCTYPE(a) (XMISCANY (a)->type)
503 #define XMARKER(a) (eassert (MARKERP (a)), &(XMISC (a)->u_marker))
504 #define XOVERLAY(a) (eassert (OVERLAYP (a)), &(XMISC (a)->u_overlay))
505 #define XSAVE_VALUE(a) (eassert (SAVE_VALUEP (a)), &(XMISC (a)->u_save_value))
507 /* Forwarding object types. */
509 #define XFWDTYPE(a) (a->u_intfwd.type)
510 #define XINTFWD(a) (eassert (INTFWDP (a)), &((a)->u_intfwd))
511 #define XBOOLFWD(a) (eassert (BOOLFWDP (a)), &((a)->u_boolfwd))
512 #define XOBJFWD(a) (eassert (OBJFWDP (a)), &((a)->u_objfwd))
513 #define XBUFFER_OBJFWD(a) \
514 (eassert (BUFFER_OBJFWDP (a)), &((a)->u_buffer_objfwd))
515 #define XKBOARD_OBJFWD(a) \
516 (eassert (KBOARD_OBJFWDP (a)), &((a)->u_kboard_objfwd))
518 /* Pseudovector types. */
520 #define XPROCESS(a) (eassert (PROCESSP (a)), \
521 (struct Lisp_Process *) XUNTAG (a, Lisp_Vectorlike))
522 #define XWINDOW(a) (eassert (WINDOWP (a)), \
523 (struct window *) XUNTAG (a, Lisp_Vectorlike))
524 #define XTERMINAL(a) (eassert (TERMINALP (a)), \
525 (struct terminal *) XUNTAG (a, Lisp_Vectorlike))
526 #define XSUBR(a) (eassert (SUBRP (a)), \
527 (struct Lisp_Subr *) XUNTAG (a, Lisp_Vectorlike))
528 #define XBUFFER(a) (eassert (BUFFERP (a)), \
529 (struct buffer *) XUNTAG (a, Lisp_Vectorlike))
530 #define XCHAR_TABLE(a) (eassert (CHAR_TABLE_P (a)), \
531 (struct Lisp_Char_Table *) XUNTAG (a, Lisp_Vectorlike))
532 #define XSUB_CHAR_TABLE(a) (eassert (SUB_CHAR_TABLE_P (a)), \
533 ((struct Lisp_Sub_Char_Table *) \
534 XUNTAG (a, Lisp_Vectorlike)))
535 #define XBOOL_VECTOR(a) (eassert (BOOL_VECTOR_P (a)), \
536 ((struct Lisp_Bool_Vector *) \
537 XUNTAG (a, Lisp_Vectorlike)))
539 /* Construct a Lisp_Object from a value or address. */
541 #define XSETINT(a, b) (a) = make_number (b)
542 #define XSETCONS(a, b) XSET (a, Lisp_Cons, b)
543 #define XSETVECTOR(a, b) XSET (a, Lisp_Vectorlike, b)
544 #define XSETSTRING(a, b) XSET (a, Lisp_String, b)
545 #define XSETSYMBOL(a, b) XSET (a, Lisp_Symbol, b)
546 #define XSETFLOAT(a, b) XSET (a, Lisp_Float, b)
550 #define XSETMISC(a, b) XSET (a, Lisp_Misc, b)
551 #define XSETMARKER(a, b) (XSETMISC (a, b), XMISCTYPE (a) = Lisp_Misc_Marker)
553 /* Pseudovector types. */
555 #define XSETPVECTYPE(v, code) XSETTYPED_PVECTYPE (v, header.size, code)
556 #define XSETTYPED_PVECTYPE(v, size_member, code) \
557 ((v)->size_member |= PSEUDOVECTOR_FLAG | (code))
558 #define XSETPVECTYPESIZE(v, code, sizeval) \
559 ((v)->header.size = PSEUDOVECTOR_FLAG | (code) | (sizeval))
561 /* The cast to struct vectorlike_header * avoids aliasing issues. */
562 #define XSETPSEUDOVECTOR(a, b, code) \
563 XSETTYPED_PSEUDOVECTOR(a, b, \
564 (((struct vectorlike_header *) \
565 XUNTAG (a, Lisp_Vectorlike)) \
568 #define XSETTYPED_PSEUDOVECTOR(a, b, size, code) \
569 (XSETVECTOR (a, b), \
570 eassert ((size & (PSEUDOVECTOR_FLAG | PVEC_TYPE_MASK)) \
571 == (PSEUDOVECTOR_FLAG | (code))))
573 #define XSETWINDOW_CONFIGURATION(a, b) \
574 (XSETPSEUDOVECTOR (a, b, PVEC_WINDOW_CONFIGURATION))
575 #define XSETPROCESS(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_PROCESS))
576 #define XSETWINDOW(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_WINDOW))
577 #define XSETTERMINAL(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_TERMINAL))
578 /* XSETSUBR is special since Lisp_Subr lacks struct vectorlike_header. */
579 #define XSETSUBR(a, b) \
580 XSETTYPED_PSEUDOVECTOR (a, b, XSUBR (a)->size, PVEC_SUBR)
581 #define XSETCOMPILED(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_COMPILED))
582 #define XSETBUFFER(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_BUFFER))
583 #define XSETCHAR_TABLE(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_CHAR_TABLE))
584 #define XSETBOOL_VECTOR(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_BOOL_VECTOR))
585 #define XSETSUB_CHAR_TABLE(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_SUB_CHAR_TABLE))
587 /* Convenience macros for dealing with Lisp arrays. */
589 #define AREF(ARRAY, IDX) XVECTOR ((ARRAY))->contents[IDX]
590 #define ASIZE(ARRAY) XVECTOR ((ARRAY))->header.size
591 /* The IDX==IDX tries to detect when the macro argument is side-effecting. */
592 #define ASET(ARRAY, IDX, VAL) \
593 (eassert ((IDX) == (IDX)), \
594 eassert ((IDX) >= 0 && (IDX) < ASIZE (ARRAY)), \
595 AREF ((ARRAY), (IDX)) = (VAL))
597 /* Convenience macros for dealing with Lisp strings. */
599 #define SDATA(string) (XSTRING (string)->data + 0)
600 #define SREF(string, index) (SDATA (string)[index] + 0)
601 #define SSET(string, index, new) (SDATA (string)[index] = (new))
602 #define SCHARS(string) (XSTRING (string)->size + 0)
603 #define SBYTES(string) (STRING_BYTES (XSTRING (string)) + 0)
605 /* Avoid "differ in sign" warnings. */
606 #define SSDATA(x) ((char *) SDATA (x))
608 #define STRING_SET_CHARS(string, newsize) \
609 (XSTRING (string)->size = (newsize))
611 #define STRING_COPYIN(string, index, new, count) \
612 memcpy (SDATA (string) + index, new, count)
616 #define CHECK_TYPE(ok, Qxxxp, x) \
617 do { if (!(ok)) wrong_type_argument (Qxxxp, (x)); } while (0)
621 /* See the macros in intervals.h. */
623 typedef struct interval
*INTERVAL
;
625 /* Complain if object is not string or buffer type */
626 #define CHECK_STRING_OR_BUFFER(x) \
627 CHECK_TYPE (STRINGP (x) || BUFFERP (x), Qbuffer_or_string_p, x)
630 /* In a cons, the markbit of the car is the gc mark bit */
634 /* Please do not use the names of these elements in code other
635 than the core lisp implementation. Use XCAR and XCDR below. */
636 #ifdef HIDE_LISP_IMPLEMENTATION
641 struct Lisp_Cons
*chain
;
648 struct Lisp_Cons
*chain
;
653 /* Take the car or cdr of something known to be a cons cell. */
654 /* The _AS_LVALUE macros shouldn't be used outside of the minimal set
655 of code that has to know what a cons cell looks like. Other code not
656 part of the basic lisp implementation should assume that the car and cdr
657 fields are not accessible as lvalues. (What if we want to switch to
658 a copying collector someday? Cached cons cell field addresses may be
659 invalidated at arbitrary points.) */
660 #ifdef HIDE_LISP_IMPLEMENTATION
661 #define XCAR_AS_LVALUE(c) (XCONS ((c))->car_)
662 #define XCDR_AS_LVALUE(c) (XCONS ((c))->u.cdr_)
664 #define XCAR_AS_LVALUE(c) (XCONS ((c))->car)
665 #define XCDR_AS_LVALUE(c) (XCONS ((c))->u.cdr)
668 /* Use these from normal code. */
669 #define XCAR(c) LISP_MAKE_RVALUE (XCAR_AS_LVALUE (c))
670 #define XCDR(c) LISP_MAKE_RVALUE (XCDR_AS_LVALUE (c))
672 /* Use these to set the fields of a cons cell.
674 Note that both arguments may refer to the same object, so 'n'
675 should not be read after 'c' is first modified. Also, neither
676 argument should be evaluated more than once; side effects are
677 especially common in the second argument. */
678 #define XSETCAR(c,n) (XCAR_AS_LVALUE (c) = (n))
679 #define XSETCDR(c,n) (XCDR_AS_LVALUE (c) = (n))
681 /* Take the car or cdr of something whose type is not known. */
683 (CONSP ((c)) ? XCAR ((c)) \
684 : NILP ((c)) ? Qnil \
685 : wrong_type_argument (Qlistp, (c)))
688 (CONSP ((c)) ? XCDR ((c)) \
689 : NILP ((c)) ? Qnil \
690 : wrong_type_argument (Qlistp, (c)))
692 /* Take the car or cdr of something whose type is not known. */
693 #define CAR_SAFE(c) \
694 (CONSP ((c)) ? XCAR ((c)) : Qnil)
696 #define CDR_SAFE(c) \
697 (CONSP ((c)) ? XCDR ((c)) : Qnil)
699 /* Nonzero if STR is a multibyte string. */
700 #define STRING_MULTIBYTE(STR) \
701 (XSTRING (STR)->size_byte >= 0)
703 /* Return the length in bytes of STR. */
705 #ifdef GC_CHECK_STRING_BYTES
708 extern ptrdiff_t string_bytes (struct Lisp_String
*);
709 #define STRING_BYTES(S) string_bytes ((S))
711 #else /* not GC_CHECK_STRING_BYTES */
713 #define STRING_BYTES(STR) \
714 ((STR)->size_byte < 0 ? (STR)->size : (STR)->size_byte)
716 #endif /* not GC_CHECK_STRING_BYTES */
718 /* An upper bound on the number of bytes in a Lisp string, not
719 counting the terminating null. This a tight enough bound to
720 prevent integer overflow errors that would otherwise occur during
721 string size calculations. A string cannot contain more bytes than
722 a fixnum can represent, nor can it be so long that C pointer
723 arithmetic stops working on the string plus its terminating null.
724 Although the actual size limit (see STRING_BYTES_MAX in alloc.c)
725 may be a bit smaller than STRING_BYTES_BOUND, calculating it here
726 would expose alloc.c internal details that we'd rather keep
727 private. The cast to ptrdiff_t ensures that STRING_BYTES_BOUND is
729 #define STRING_BYTES_BOUND \
730 min (MOST_POSITIVE_FIXNUM, (ptrdiff_t) min (SIZE_MAX, PTRDIFF_MAX) - 1)
732 /* Mark STR as a unibyte string. */
733 #define STRING_SET_UNIBYTE(STR) \
734 do { if (EQ (STR, empty_multibyte_string)) \
735 (STR) = empty_unibyte_string; \
736 else XSTRING (STR)->size_byte = -1; } while (0)
738 /* Mark STR as a multibyte string. Assure that STR contains only
739 ASCII characters in advance. */
740 #define STRING_SET_MULTIBYTE(STR) \
741 do { if (EQ (STR, empty_unibyte_string)) \
742 (STR) = empty_multibyte_string; \
743 else XSTRING (STR)->size_byte = XSTRING (STR)->size; } while (0)
745 /* Get text properties. */
746 #define STRING_INTERVALS(STR) (XSTRING (STR)->intervals + 0)
748 /* Set text properties. */
749 #define STRING_SET_INTERVALS(STR, INT) (XSTRING (STR)->intervals = (INT))
751 /* In a string or vector, the sign bit of the `size' is the gc mark bit */
757 INTERVAL intervals
; /* text properties in this string */
761 /* Header of vector-like objects. This documents the layout constraints on
762 vectors and pseudovectors other than struct Lisp_Subr. It also prevents
763 compilers from being fooled by Emacs's type punning: the XSETPSEUDOVECTOR
764 and PSEUDOVECTORP macros cast their pointers to struct vectorlike_header *,
765 because when two such pointers potentially alias, a compiler won't
766 incorrectly reorder loads and stores to their size fields. See
767 <http://debbugs.gnu.org/cgi/bugreport.cgi?bug=8546>. */
768 struct vectorlike_header
772 /* When the vector is allocated from a vector block, NBYTES is used
773 if the vector is not on a free list, and VECTOR is used otherwise.
774 For large vector-like objects, BUFFER or VECTOR is used as a pointer
775 to the next vector-like object. It is generally a buffer or a
776 Lisp_Vector alias, so for convenience it is a union instead of a
777 pointer: this way, one can write P->next.vector instead of ((struct
778 Lisp_Vector *) P->next). */
781 struct buffer
*buffer
;
782 struct Lisp_Vector
*vector
;
788 struct vectorlike_header header
;
789 Lisp_Object contents
[1];
792 /* If a struct is made to look like a vector, this macro returns the length
793 of the shortest vector that would hold that struct. */
794 #define VECSIZE(type) ((sizeof (type) \
795 - offsetof (struct Lisp_Vector, contents[0]) \
796 + sizeof (Lisp_Object) - 1) /* round up */ \
797 / sizeof (Lisp_Object))
799 /* Like VECSIZE, but used when the pseudo-vector has non-Lisp_Object fields
800 at the end and we need to compute the number of Lisp_Object fields (the
801 ones that the GC needs to trace). */
802 #define PSEUDOVECSIZE(type, nonlispfield) \
803 ((offsetof (type, nonlispfield) - offsetof (struct Lisp_Vector, contents[0])) \
804 / sizeof (Lisp_Object))
806 /* A char-table is a kind of vectorlike, with contents are like a
807 vector but with a few other slots. For some purposes, it makes
808 sense to handle a char-table with type struct Lisp_Vector. An
809 element of a char table can be any Lisp objects, but if it is a sub
810 char-table, we treat it a table that contains information of a
811 specific range of characters. A sub char-table has the same
812 structure as a vector. A sub char table appears only in an element
813 of a char-table, and there's no way to access it directly from
814 Emacs Lisp program. */
816 /* This is the number of slots that every char table must have. This
817 counts the ordinary slots and the top, defalt, parent, and purpose
819 #define CHAR_TABLE_STANDARD_SLOTS (VECSIZE (struct Lisp_Char_Table) - 1)
821 /* Return the number of "extra" slots in the char table CT. */
823 #define CHAR_TABLE_EXTRA_SLOTS(CT) \
824 (((CT)->header.size & PSEUDOVECTOR_SIZE_MASK) - CHAR_TABLE_STANDARD_SLOTS)
828 #define CHAR_TABLE_REF_ASCII(CT, IDX) \
829 ({struct Lisp_Char_Table *_tbl = NULL; \
832 _tbl = _tbl ? XCHAR_TABLE (_tbl->parent) : XCHAR_TABLE (CT); \
833 _val = (! SUB_CHAR_TABLE_P (_tbl->ascii) ? _tbl->ascii \
834 : XSUB_CHAR_TABLE (_tbl->ascii)->contents[IDX]); \
836 _val = _tbl->defalt; \
837 } while (NILP (_val) && ! NILP (_tbl->parent)); \
840 #else /* not __GNUC__ */
842 #define CHAR_TABLE_REF_ASCII(CT, IDX) \
843 (! NILP (XCHAR_TABLE (CT)->ascii) \
844 ? (! SUB_CHAR_TABLE_P (XCHAR_TABLE (CT)->ascii) \
845 ? XCHAR_TABLE (CT)->ascii \
846 : ! NILP (XSUB_CHAR_TABLE (XCHAR_TABLE (CT)->ascii)->contents[IDX]) \
847 ? XSUB_CHAR_TABLE (XCHAR_TABLE (CT)->ascii)->contents[IDX] \
848 : char_table_ref ((CT), (IDX))) \
849 : char_table_ref ((CT), (IDX)))
851 #endif /* not __GNUC__ */
853 /* Compute A OP B, using the unsigned comparison operator OP. A and B
854 should be integer expressions. This is not the same as
855 mathematical comparison; for example, UNSIGNED_CMP (0, <, -1)
856 returns 1. For efficiency, prefer plain unsigned comparison if A
857 and B's sizes both fit (after integer promotion). */
858 #define UNSIGNED_CMP(a, op, b) \
859 (max (sizeof ((a) + 0), sizeof ((b) + 0)) <= sizeof (unsigned) \
860 ? ((a) + (unsigned) 0) op ((b) + (unsigned) 0) \
861 : ((a) + (uintmax_t) 0) op ((b) + (uintmax_t) 0))
863 /* Nonzero iff C is an ASCII character. */
864 #define ASCII_CHAR_P(c) UNSIGNED_CMP (c, <, 0x80)
866 /* Almost equivalent to Faref (CT, IDX) with optimization for ASCII
867 characters. Do not check validity of CT. */
868 #define CHAR_TABLE_REF(CT, IDX) \
869 (ASCII_CHAR_P (IDX) ? CHAR_TABLE_REF_ASCII ((CT), (IDX)) \
870 : char_table_ref ((CT), (IDX)))
872 /* Almost equivalent to Faref (CT, IDX). However, if the result is
873 not a character, return IDX.
875 For these characters, do not check validity of CT
876 and do not follow parent. */
877 #define CHAR_TABLE_TRANSLATE(CT, IDX) \
878 char_table_translate (CT, IDX)
880 /* Equivalent to Faset (CT, IDX, VAL) with optimization for ASCII and
881 8-bit European characters. Do not check validity of CT. */
882 #define CHAR_TABLE_SET(CT, IDX, VAL) \
883 (ASCII_CHAR_P (IDX) && SUB_CHAR_TABLE_P (XCHAR_TABLE (CT)->ascii) \
884 ? XSUB_CHAR_TABLE (XCHAR_TABLE (CT)->ascii)->contents[IDX] = VAL \
885 : char_table_set (CT, IDX, VAL))
887 #define CHARTAB_SIZE_BITS_0 6
888 #define CHARTAB_SIZE_BITS_1 4
889 #define CHARTAB_SIZE_BITS_2 5
890 #define CHARTAB_SIZE_BITS_3 7
892 extern const int chartab_size
[4];
894 struct Lisp_Sub_Char_Table
;
896 struct Lisp_Char_Table
898 /* HEADER.SIZE is the vector's size field, which also holds the
899 pseudovector type information. It holds the size, too.
900 The size counts the defalt, parent, purpose, ascii,
901 contents, and extras slots. */
902 struct vectorlike_header header
;
904 /* This holds a default value,
905 which is used whenever the value for a specific character is nil. */
908 /* This points to another char table, which we inherit from when the
909 value for a specific character is nil. The `defalt' slot takes
910 precedence over this. */
913 /* This is a symbol which says what kind of use this char-table is
917 /* The bottom sub char-table for characters of the range 0..127. It
918 is nil if none of ASCII character has a specific value. */
921 Lisp_Object contents
[(1 << CHARTAB_SIZE_BITS_0
)];
923 /* These hold additional data. It is a vector. */
924 Lisp_Object extras
[1];
927 struct Lisp_Sub_Char_Table
929 /* HEADER.SIZE is the vector's size field, which also holds the
930 pseudovector type information. It holds the size, too. */
931 struct vectorlike_header header
;
933 /* Depth of this sub char-table. It should be 1, 2, or 3. A sub
934 char-table of depth 1 contains 16 elements, and each element
935 covers 4096 (128*32) characters. A sub char-table of depth 2
936 contains 32 elements, and each element covers 128 characters. A
937 sub char-table of depth 3 contains 128 elements, and each element
938 is for one character. */
941 /* Minimum character covered by the sub char-table. */
942 Lisp_Object min_char
;
944 Lisp_Object contents
[1];
947 /* A boolvector is a kind of vectorlike, with contents are like a string. */
948 struct Lisp_Bool_Vector
950 /* HEADER.SIZE is the vector's size field. It doesn't have the real size,
951 just the subtype information. */
952 struct vectorlike_header header
;
953 /* This is the size in bits. */
955 /* This contains the actual bits, packed into bytes. */
956 unsigned char data
[1];
959 /* This structure describes a built-in function.
960 It is generated by the DEFUN macro only.
961 defsubr makes it into a Lisp object.
963 This type is treated in most respects as a pseudovector,
964 but since we never dynamically allocate or free them,
965 we don't need a struct vectorlike_header and its 'next' field. */
971 Lisp_Object (*a0
) (void);
972 Lisp_Object (*a1
) (Lisp_Object
);
973 Lisp_Object (*a2
) (Lisp_Object
, Lisp_Object
);
974 Lisp_Object (*a3
) (Lisp_Object
, Lisp_Object
, Lisp_Object
);
975 Lisp_Object (*a4
) (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
976 Lisp_Object (*a5
) (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
977 Lisp_Object (*a6
) (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
978 Lisp_Object (*a7
) (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
979 Lisp_Object (*a8
) (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
980 Lisp_Object (*aUNEVALLED
) (Lisp_Object args
);
981 Lisp_Object (*aMANY
) (ptrdiff_t, Lisp_Object
*);
983 short min_args
, max_args
;
984 const char *symbol_name
;
990 /***********************************************************************
992 ***********************************************************************/
994 /* Interned state of a symbol. */
998 SYMBOL_UNINTERNED
= 0,
1000 SYMBOL_INTERNED_IN_INITIAL_OBARRAY
= 2
1003 enum symbol_redirect
1005 SYMBOL_PLAINVAL
= 4,
1006 SYMBOL_VARALIAS
= 1,
1007 SYMBOL_LOCALIZED
= 2,
1008 SYMBOL_FORWARDED
= 3
1013 unsigned gcmarkbit
: 1;
1015 /* Indicates where the value can be found:
1016 0 : it's a plain var, the value is in the `value' field.
1017 1 : it's a varalias, the value is really in the `alias' symbol.
1018 2 : it's a localized var, the value is in the `blv' object.
1019 3 : it's a forwarding variable, the value is in `forward'. */
1020 ENUM_BF (symbol_redirect
) redirect
: 3;
1022 /* Non-zero means symbol is constant, i.e. changing its value
1023 should signal an error. If the value is 3, then the var
1024 can be changed, but only by `defconst'. */
1025 unsigned constant
: 2;
1027 /* Interned state of the symbol. This is an enumerator from
1028 enum symbol_interned. */
1029 unsigned interned
: 2;
1031 /* Non-zero means that this variable has been explicitly declared
1032 special (with `defvar' etc), and shouldn't be lexically bound. */
1033 unsigned declared_special
: 1;
1035 /* The symbol's name, as a Lisp string.
1036 The name "xname" is used to intentionally break code referring to
1037 the old field "name" of type pointer to struct Lisp_String. */
1040 /* Value of the symbol or Qunbound if unbound. Which alternative of the
1041 union is used depends on the `redirect' field above. */
1044 struct Lisp_Symbol
*alias
;
1045 struct Lisp_Buffer_Local_Value
*blv
;
1046 union Lisp_Fwd
*fwd
;
1049 /* Function value of the symbol or Qunbound if not fboundp. */
1050 Lisp_Object function
;
1052 /* The symbol's property list. */
1055 /* Next symbol in obarray bucket, if the symbol is interned. */
1056 struct Lisp_Symbol
*next
;
1059 /* Value is name of symbol. */
1061 #define SYMBOL_VAL(sym) \
1062 (eassert ((sym)->redirect == SYMBOL_PLAINVAL), (sym)->val.value)
1063 #define SYMBOL_ALIAS(sym) \
1064 (eassert ((sym)->redirect == SYMBOL_VARALIAS), (sym)->val.alias)
1065 #define SYMBOL_BLV(sym) \
1066 (eassert ((sym)->redirect == SYMBOL_LOCALIZED), (sym)->val.blv)
1067 #define SYMBOL_FWD(sym) \
1068 (eassert ((sym)->redirect == SYMBOL_FORWARDED), (sym)->val.fwd)
1069 #define SET_SYMBOL_VAL(sym, v) \
1070 (eassert ((sym)->redirect == SYMBOL_PLAINVAL), (sym)->val.value = (v))
1071 #define SET_SYMBOL_ALIAS(sym, v) \
1072 (eassert ((sym)->redirect == SYMBOL_VARALIAS), (sym)->val.alias = (v))
1073 #define SET_SYMBOL_BLV(sym, v) \
1074 (eassert ((sym)->redirect == SYMBOL_LOCALIZED), (sym)->val.blv = (v))
1075 #define SET_SYMBOL_FWD(sym, v) \
1076 (eassert ((sym)->redirect == SYMBOL_FORWARDED), (sym)->val.fwd = (v))
1078 #define SYMBOL_NAME(sym) \
1079 LISP_MAKE_RVALUE (XSYMBOL (sym)->xname)
1081 /* Value is non-zero if SYM is an interned symbol. */
1083 #define SYMBOL_INTERNED_P(sym) \
1084 (XSYMBOL (sym)->interned != SYMBOL_UNINTERNED)
1086 /* Value is non-zero if SYM is interned in initial_obarray. */
1088 #define SYMBOL_INTERNED_IN_INITIAL_OBARRAY_P(sym) \
1089 (XSYMBOL (sym)->interned == SYMBOL_INTERNED_IN_INITIAL_OBARRAY)
1091 /* Value is non-zero if symbol is considered a constant, i.e. its
1092 value cannot be changed (there is an exception for keyword symbols,
1093 whose value can be set to the keyword symbol itself). */
1095 #define SYMBOL_CONSTANT_P(sym) XSYMBOL (sym)->constant
1097 #define DEFSYM(sym, name) \
1098 do { (sym) = intern_c_string ((name)); staticpro (&(sym)); } while (0)
1101 /***********************************************************************
1103 ***********************************************************************/
1105 /* The structure of a Lisp hash table. */
1107 struct Lisp_Hash_Table
1109 /* This is for Lisp; the hash table code does not refer to it. */
1110 struct vectorlike_header header
;
1112 /* Function used to compare keys. */
1115 /* Nil if table is non-weak. Otherwise a symbol describing the
1116 weakness of the table. */
1119 /* When the table is resized, and this is an integer, compute the
1120 new size by adding this to the old size. If a float, compute the
1121 new size by multiplying the old size with this factor. */
1122 Lisp_Object rehash_size
;
1124 /* Resize hash table when number of entries/ table size is >= this
1126 Lisp_Object rehash_threshold
;
1128 /* Vector of hash codes.. If hash[I] is nil, this means that that
1129 entry I is unused. */
1132 /* Vector used to chain entries. If entry I is free, next[I] is the
1133 entry number of the next free item. If entry I is non-free,
1134 next[I] is the index of the next entry in the collision chain. */
1137 /* Index of first free entry in free list. */
1138 Lisp_Object next_free
;
1140 /* Bucket vector. A non-nil entry is the index of the first item in
1141 a collision chain. This vector's size can be larger than the
1142 hash table size to reduce collisions. */
1145 /* User-supplied hash function, or nil. */
1146 Lisp_Object user_hash_function
;
1148 /* User-supplied key comparison function, or nil. */
1149 Lisp_Object user_cmp_function
;
1151 /* Only the fields above are traced normally by the GC. The ones below
1152 `count' are special and are either ignored by the GC or traced in
1153 a special way (e.g. because of weakness). */
1155 /* Number of key/value entries in the table. */
1158 /* Vector of keys and values. The key of item I is found at index
1159 2 * I, the value is found at index 2 * I + 1.
1160 This is gc_marked specially if the table is weak. */
1161 Lisp_Object key_and_value
;
1163 /* Next weak hash table if this is a weak hash table. The head
1164 of the list is in weak_hash_tables. */
1165 struct Lisp_Hash_Table
*next_weak
;
1167 /* C function to compare two keys. */
1168 int (*cmpfn
) (struct Lisp_Hash_Table
*,
1169 Lisp_Object
, EMACS_UINT
,
1170 Lisp_Object
, EMACS_UINT
);
1172 /* C function to compute hash code. */
1173 EMACS_UINT (*hashfn
) (struct Lisp_Hash_Table
*, Lisp_Object
);
1177 #define XHASH_TABLE(OBJ) \
1178 ((struct Lisp_Hash_Table *) XUNTAG (OBJ, Lisp_Vectorlike))
1180 #define XSET_HASH_TABLE(VAR, PTR) \
1181 (XSETPSEUDOVECTOR (VAR, PTR, PVEC_HASH_TABLE))
1183 #define HASH_TABLE_P(OBJ) PSEUDOVECTORP (OBJ, PVEC_HASH_TABLE)
1185 #define CHECK_HASH_TABLE(x) \
1186 CHECK_TYPE (HASH_TABLE_P (x), Qhash_table_p, x)
1188 /* Value is the key part of entry IDX in hash table H. */
1190 #define HASH_KEY(H, IDX) AREF ((H)->key_and_value, 2 * (IDX))
1192 /* Value is the value part of entry IDX in hash table H. */
1194 #define HASH_VALUE(H, IDX) AREF ((H)->key_and_value, 2 * (IDX) + 1)
1196 /* Value is the index of the next entry following the one at IDX
1199 #define HASH_NEXT(H, IDX) AREF ((H)->next, (IDX))
1201 /* Value is the hash code computed for entry IDX in hash table H. */
1203 #define HASH_HASH(H, IDX) AREF ((H)->hash, (IDX))
1205 /* Value is the index of the element in hash table H that is the
1206 start of the collision list at index IDX in the index vector of H. */
1208 #define HASH_INDEX(H, IDX) AREF ((H)->index, (IDX))
1210 /* Value is the size of hash table H. */
1212 #define HASH_TABLE_SIZE(H) ASIZE ((H)->next)
1214 /* Default size for hash tables if not specified. */
1216 #define DEFAULT_HASH_SIZE 65
1218 /* Default threshold specifying when to resize a hash table. The
1219 value gives the ratio of current entries in the hash table and the
1220 size of the hash table. */
1222 #define DEFAULT_REHASH_THRESHOLD 0.8
1224 /* Default factor by which to increase the size of a hash table. */
1226 #define DEFAULT_REHASH_SIZE 1.5
1229 /* These structures are used for various misc types. */
1231 struct Lisp_Misc_Any
/* Supertype of all Misc types. */
1233 ENUM_BF (Lisp_Misc_Type
) type
: 16; /* = Lisp_Misc_??? */
1234 unsigned gcmarkbit
: 1;
1240 ENUM_BF (Lisp_Misc_Type
) type
: 16; /* = Lisp_Misc_Marker */
1241 unsigned gcmarkbit
: 1;
1243 /* This flag is temporarily used in the functions
1244 decode/encode_coding_object to record that the marker position
1245 must be adjusted after the conversion. */
1246 unsigned int need_adjustment
: 1;
1247 /* 1 means normal insertion at the marker's position
1248 leaves the marker after the inserted text. */
1249 unsigned int insertion_type
: 1;
1250 /* This is the buffer that the marker points into, or 0 if it points nowhere.
1251 Note: a chain of markers can contain markers pointing into different
1252 buffers (the chain is per buffer_text rather than per buffer, so it's
1253 shared between indirect buffers). */
1254 /* This is used for (other than NULL-checking):
1256 - Fset_marker: check eq(oldbuf, newbuf) to avoid unchain+rechain.
1257 - unchain_marker: to find the list from which to unchain.
1258 - Fkill_buffer: to only unchain the markers of current indirect buffer.
1260 struct buffer
*buffer
;
1262 /* The remaining fields are meaningless in a marker that
1263 does not point anywhere. */
1265 /* For markers that point somewhere,
1266 this is used to chain of all the markers in a given buffer. */
1267 /* We could remove it and use an array in buffer_text instead.
1268 That would also allow to preserve it ordered. */
1269 struct Lisp_Marker
*next
;
1270 /* This is the char position where the marker points. */
1272 /* This is the byte position.
1273 It's mostly used as a charpos<->bytepos cache (i.e. it's not directly
1274 used to implement the functionality of markers, but rather to (ab)use
1275 markers as a cache for char<->byte mappings). */
1279 /* Forwarding pointer to an int variable.
1280 This is allowed only in the value cell of a symbol,
1281 and it means that the symbol's value really lives in the
1282 specified int variable. */
1285 enum Lisp_Fwd_Type type
; /* = Lisp_Fwd_Int */
1289 /* Boolean forwarding pointer to an int variable.
1290 This is like Lisp_Intfwd except that the ostensible
1291 "value" of the symbol is t if the int variable is nonzero,
1292 nil if it is zero. */
1295 enum Lisp_Fwd_Type type
; /* = Lisp_Fwd_Bool */
1299 /* Forwarding pointer to a Lisp_Object variable.
1300 This is allowed only in the value cell of a symbol,
1301 and it means that the symbol's value really lives in the
1302 specified variable. */
1305 enum Lisp_Fwd_Type type
; /* = Lisp_Fwd_Obj */
1306 Lisp_Object
*objvar
;
1309 /* Like Lisp_Objfwd except that value lives in a slot in the
1310 current buffer. Value is byte index of slot within buffer. */
1311 struct Lisp_Buffer_Objfwd
1313 enum Lisp_Fwd_Type type
; /* = Lisp_Fwd_Buffer_Obj */
1315 Lisp_Object slottype
; /* Qnil, Lisp_Int, Lisp_Symbol, or Lisp_String. */
1318 /* struct Lisp_Buffer_Local_Value is used in a symbol value cell when
1319 the symbol has buffer-local or frame-local bindings. (Exception:
1320 some buffer-local variables are built-in, with their values stored
1321 in the buffer structure itself. They are handled differently,
1322 using struct Lisp_Buffer_Objfwd.)
1324 The `realvalue' slot holds the variable's current value, or a
1325 forwarding pointer to where that value is kept. This value is the
1326 one that corresponds to the loaded binding. To read or set the
1327 variable, you must first make sure the right binding is loaded;
1328 then you can access the value in (or through) `realvalue'.
1330 `buffer' and `frame' are the buffer and frame for which the loaded
1331 binding was found. If those have changed, to make sure the right
1332 binding is loaded it is necessary to find which binding goes with
1333 the current buffer and selected frame, then load it. To load it,
1334 first unload the previous binding, then copy the value of the new
1335 binding into `realvalue' (or through it). Also update
1336 LOADED-BINDING to point to the newly loaded binding.
1338 `local_if_set' indicates that merely setting the variable creates a
1339 local binding for the current buffer. Otherwise the latter, setting
1340 the variable does not do that; only make-local-variable does that. */
1342 struct Lisp_Buffer_Local_Value
1344 /* 1 means that merely setting the variable creates a local
1345 binding for the current buffer */
1346 unsigned int local_if_set
: 1;
1347 /* 1 means this variable can have frame-local bindings, otherwise, it is
1348 can have buffer-local bindings. The two cannot be combined. */
1349 unsigned int frame_local
: 1;
1350 /* 1 means that the binding now loaded was found.
1351 Presumably equivalent to (defcell!=valcell) */
1352 unsigned int found
: 1;
1353 /* If non-NULL, a forwarding to the C var where it should also be set. */
1354 union Lisp_Fwd
*fwd
; /* Should never be (Buffer|Kboard)_Objfwd. */
1355 /* The buffer or frame for which the loaded binding was found. */
1357 /* A cons cell that holds the default value. It has the form
1358 (SYMBOL . DEFAULT-VALUE). */
1359 Lisp_Object defcell
;
1360 /* The cons cell from `where's parameter alist.
1361 It always has the form (SYMBOL . VALUE)
1362 Note that if `forward' is non-nil, VALUE may be out of date.
1363 Also if the currently loaded binding is the default binding, then
1364 this is `eq'ual to defcell. */
1365 Lisp_Object valcell
;
1368 #define BLV_FOUND(blv) \
1369 (eassert ((blv)->found == !EQ ((blv)->defcell, (blv)->valcell)), (blv)->found)
1370 #define SET_BLV_FOUND(blv, v) \
1371 (eassert ((v) == !EQ ((blv)->defcell, (blv)->valcell)), (blv)->found = (v))
1373 #define BLV_VALUE(blv) (XCDR ((blv)->valcell))
1374 #define SET_BLV_VALUE(blv, v) (XSETCDR ((blv)->valcell, v))
1376 /* START and END are markers in the overlay's buffer, and
1377 PLIST is the overlay's property list. */
1379 /* An overlay's real data content is:
1382 - insertion type of both ends
1383 - start & start_byte
1385 - next (singly linked list of overlays).
1386 - start_next and end_next (singly linked list of markers).
1387 I.e. 9words plus 2 bits, 3words of which are for external linked lists.
1390 ENUM_BF (Lisp_Misc_Type
) type
: 16; /* = Lisp_Misc_Overlay */
1391 unsigned gcmarkbit
: 1;
1393 struct Lisp_Overlay
*next
;
1394 Lisp_Object start
, end
, plist
;
1397 /* Like Lisp_Objfwd except that value lives in a slot in the
1399 struct Lisp_Kboard_Objfwd
1401 enum Lisp_Fwd_Type type
; /* = Lisp_Fwd_Kboard_Obj */
1405 /* Hold a C pointer for later use.
1406 This type of object is used in the arg to record_unwind_protect. */
1407 struct Lisp_Save_Value
1409 ENUM_BF (Lisp_Misc_Type
) type
: 16; /* = Lisp_Misc_Save_Value */
1410 unsigned gcmarkbit
: 1;
1412 /* If DOGC is set, POINTER is the address of a memory
1413 area containing INTEGER potential Lisp_Objects. */
1414 unsigned int dogc
: 1;
1420 /* A miscellaneous object, when it's on the free list. */
1423 ENUM_BF (Lisp_Misc_Type
) type
: 16; /* = Lisp_Misc_Free */
1424 unsigned gcmarkbit
: 1;
1426 union Lisp_Misc
*chain
;
1429 /* To get the type field of a union Lisp_Misc, use XMISCTYPE.
1430 It uses one of these struct subtypes to get the type field. */
1434 struct Lisp_Misc_Any u_any
; /* Supertype of all Misc types. */
1435 struct Lisp_Free u_free
;
1436 struct Lisp_Marker u_marker
;
1437 struct Lisp_Overlay u_overlay
;
1438 struct Lisp_Save_Value u_save_value
;
1443 struct Lisp_Intfwd u_intfwd
;
1444 struct Lisp_Boolfwd u_boolfwd
;
1445 struct Lisp_Objfwd u_objfwd
;
1446 struct Lisp_Buffer_Objfwd u_buffer_objfwd
;
1447 struct Lisp_Kboard_Objfwd u_kboard_objfwd
;
1450 /* Lisp floating point type */
1455 #ifdef HIDE_LISP_IMPLEMENTATION
1460 struct Lisp_Float
*chain
;
1464 #ifdef HIDE_LISP_IMPLEMENTATION
1465 #define XFLOAT_DATA(f) (0 ? XFLOAT (f)->u.data_ : XFLOAT (f)->u.data_)
1467 #define XFLOAT_DATA(f) (0 ? XFLOAT (f)->u.data : XFLOAT (f)->u.data)
1468 /* This should be used only in alloc.c, which always disables
1469 HIDE_LISP_IMPLEMENTATION. */
1470 #define XFLOAT_INIT(f,n) (XFLOAT (f)->u.data = (n))
1473 /* A character, declared with the following typedef, is a member
1474 of some character set associated with the current buffer. */
1475 #ifndef _UCHAR_T /* Protect against something in ctab.h on AIX. */
1477 typedef unsigned char UCHAR
;
1480 /* Meanings of slots in a Lisp_Compiled: */
1482 #define COMPILED_ARGLIST 0
1483 #define COMPILED_BYTECODE 1
1484 #define COMPILED_CONSTANTS 2
1485 #define COMPILED_STACK_DEPTH 3
1486 #define COMPILED_DOC_STRING 4
1487 #define COMPILED_INTERACTIVE 5
1489 /* Flag bits in a character. These also get used in termhooks.h.
1490 Richard Stallman <rms@gnu.ai.mit.edu> thinks that MULE
1491 (MUlti-Lingual Emacs) might need 22 bits for the character value
1492 itself, so we probably shouldn't use any bits lower than 0x0400000. */
1493 #define CHAR_ALT (0x0400000)
1494 #define CHAR_SUPER (0x0800000)
1495 #define CHAR_HYPER (0x1000000)
1496 #define CHAR_SHIFT (0x2000000)
1497 #define CHAR_CTL (0x4000000)
1498 #define CHAR_META (0x8000000)
1500 #define CHAR_MODIFIER_MASK \
1501 (CHAR_ALT | CHAR_SUPER | CHAR_HYPER | CHAR_SHIFT | CHAR_CTL | CHAR_META)
1504 /* Actually, the current Emacs uses 22 bits for the character value
1506 #define CHARACTERBITS 22
1509 /* The glyph datatype, used to represent characters on the display.
1510 It consists of a char code and a face id. */
1517 /* Return a glyph's character code. */
1518 #define GLYPH_CHAR(glyph) ((glyph).ch)
1520 /* Return a glyph's face ID. */
1521 #define GLYPH_FACE(glyph) ((glyph).face_id)
1523 #define SET_GLYPH_CHAR(glyph, char) ((glyph).ch = (char))
1524 #define SET_GLYPH_FACE(glyph, face) ((glyph).face_id = (face))
1525 #define SET_GLYPH(glyph, char, face) ((glyph).ch = (char), (glyph).face_id = (face))
1527 /* Return 1 if GLYPH contains valid character code. */
1528 #define GLYPH_CHAR_VALID_P(glyph) CHAR_VALID_P (GLYPH_CHAR (glyph))
1531 /* Glyph Code from a display vector may either be an integer which
1532 encodes a char code in the lower CHARACTERBITS bits and a (very small)
1533 face-id in the upper bits, or it may be a cons (CHAR . FACE-ID). */
1535 #define GLYPH_CODE_P(gc) \
1537 ? (CHARACTERP (XCAR (gc)) \
1538 && RANGED_INTEGERP (0, XCDR (gc), MAX_FACE_ID)) \
1539 : (RANGED_INTEGERP \
1541 (MAX_FACE_ID < TYPE_MAXIMUM (EMACS_INT) >> CHARACTERBITS \
1542 ? ((EMACS_INT) MAX_FACE_ID << CHARACTERBITS) | MAX_CHAR \
1543 : TYPE_MAXIMUM (EMACS_INT)))))
1545 /* The following are valid only if GLYPH_CODE_P (gc). */
1547 #define GLYPH_CODE_CHAR(gc) \
1548 (CONSP (gc) ? XINT (XCAR (gc)) : XINT (gc) & ((1 << CHARACTERBITS) - 1))
1550 #define GLYPH_CODE_FACE(gc) \
1551 (CONSP (gc) ? XINT (XCDR (gc)) : XINT (gc) >> CHARACTERBITS)
1553 #define SET_GLYPH_FROM_GLYPH_CODE(glyph, gc) \
1557 SET_GLYPH (glyph, XINT (XCAR (gc)), XINT (XCDR (gc))); \
1559 SET_GLYPH (glyph, (XINT (gc) & ((1 << CHARACTERBITS)-1)), \
1560 (XINT (gc) >> CHARACTERBITS)); \
1564 /* The ID of the mode line highlighting face. */
1565 #define GLYPH_MODE_LINE_FACE 1
1567 /* Structure to hold mouse highlight data. This is here because other
1568 header files need it for defining struct x_output etc. */
1570 /* These variables describe the range of text currently shown in its
1571 mouse-face, together with the window they apply to. As long as
1572 the mouse stays within this range, we need not redraw anything on
1573 its account. Rows and columns are glyph matrix positions in
1574 MOUSE_FACE_WINDOW. */
1575 int mouse_face_beg_row
, mouse_face_beg_col
;
1576 int mouse_face_beg_x
, mouse_face_beg_y
;
1577 int mouse_face_end_row
, mouse_face_end_col
;
1578 int mouse_face_end_x
, mouse_face_end_y
;
1579 int mouse_face_past_end
;
1580 Lisp_Object mouse_face_window
;
1581 int mouse_face_face_id
;
1582 Lisp_Object mouse_face_overlay
;
1584 /* 1 if a mouse motion event came and we didn't handle it right away because
1585 gc was in progress. */
1586 int mouse_face_deferred_gc
;
1588 /* FRAME and X, Y position of mouse when last checked for
1589 highlighting. X and Y can be negative or out of range for the frame. */
1590 struct frame
*mouse_face_mouse_frame
;
1591 int mouse_face_mouse_x
, mouse_face_mouse_y
;
1593 /* Nonzero means defer mouse-motion highlighting. */
1594 int mouse_face_defer
;
1596 /* Nonzero means that the mouse highlight should not be shown. */
1597 int mouse_face_hidden
;
1599 int mouse_face_image_state
;
1602 /* Data type checking */
1604 #define NILP(x) EQ (x, Qnil)
1606 #define NUMBERP(x) (INTEGERP (x) || FLOATP (x))
1607 #define NATNUMP(x) (INTEGERP (x) && XINT (x) >= 0)
1609 #define RANGED_INTEGERP(lo, x, hi) \
1610 (INTEGERP (x) && (lo) <= XINT (x) && XINT (x) <= (hi))
1611 #define TYPE_RANGED_INTEGERP(type, x) \
1612 (TYPE_SIGNED (type) \
1613 ? RANGED_INTEGERP (TYPE_MINIMUM (type), x, TYPE_MAXIMUM (type)) \
1614 : RANGED_INTEGERP (0, x, TYPE_MAXIMUM (type)))
1616 #define INTEGERP(x) (LISP_INT_TAG_P (XTYPE ((x))))
1617 #define SYMBOLP(x) (XTYPE ((x)) == Lisp_Symbol)
1618 #define MISCP(x) (XTYPE ((x)) == Lisp_Misc)
1619 #define VECTORLIKEP(x) (XTYPE ((x)) == Lisp_Vectorlike)
1620 #define STRINGP(x) (XTYPE ((x)) == Lisp_String)
1621 #define CONSP(x) (XTYPE ((x)) == Lisp_Cons)
1623 #define FLOATP(x) (XTYPE ((x)) == Lisp_Float)
1624 #define VECTORP(x) (VECTORLIKEP (x) && !(ASIZE (x) & PSEUDOVECTOR_FLAG))
1625 #define OVERLAYP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Overlay)
1626 #define MARKERP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Marker)
1627 #define SAVE_VALUEP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Save_Value)
1629 #define INTFWDP(x) (XFWDTYPE (x) == Lisp_Fwd_Int)
1630 #define BOOLFWDP(x) (XFWDTYPE (x) == Lisp_Fwd_Bool)
1631 #define OBJFWDP(x) (XFWDTYPE (x) == Lisp_Fwd_Obj)
1632 #define BUFFER_OBJFWDP(x) (XFWDTYPE (x) == Lisp_Fwd_Buffer_Obj)
1633 #define KBOARD_OBJFWDP(x) (XFWDTYPE (x) == Lisp_Fwd_Kboard_Obj)
1635 /* True if object X is a pseudovector whose code is CODE. The cast to struct
1636 vectorlike_header * avoids aliasing issues. */
1637 #define PSEUDOVECTORP(x, code) \
1638 TYPED_PSEUDOVECTORP(x, vectorlike_header, code)
1640 /* True if object X, with internal type struct T *, is a pseudovector whose
1642 #define TYPED_PSEUDOVECTORP(x, t, code) \
1644 && (((((struct t *) XUNTAG (x, Lisp_Vectorlike))->size \
1645 & (PSEUDOVECTOR_FLAG | (code)))) \
1646 == (PSEUDOVECTOR_FLAG | (code))))
1648 /* Test for specific pseudovector types. */
1649 #define WINDOW_CONFIGURATIONP(x) PSEUDOVECTORP (x, PVEC_WINDOW_CONFIGURATION)
1650 #define PROCESSP(x) PSEUDOVECTORP (x, PVEC_PROCESS)
1651 #define WINDOWP(x) PSEUDOVECTORP (x, PVEC_WINDOW)
1652 #define TERMINALP(x) PSEUDOVECTORP (x, PVEC_TERMINAL)
1653 /* SUBRP is special since Lisp_Subr lacks struct vectorlike_header. */
1654 #define SUBRP(x) TYPED_PSEUDOVECTORP (x, Lisp_Subr, PVEC_SUBR)
1655 #define COMPILEDP(x) PSEUDOVECTORP (x, PVEC_COMPILED)
1656 #define BUFFERP(x) PSEUDOVECTORP (x, PVEC_BUFFER)
1657 #define CHAR_TABLE_P(x) PSEUDOVECTORP (x, PVEC_CHAR_TABLE)
1658 #define SUB_CHAR_TABLE_P(x) PSEUDOVECTORP (x, PVEC_SUB_CHAR_TABLE)
1659 #define BOOL_VECTOR_P(x) PSEUDOVECTORP (x, PVEC_BOOL_VECTOR)
1660 #define FRAMEP(x) PSEUDOVECTORP (x, PVEC_FRAME)
1662 /* Test for image (image . spec) */
1663 #define IMAGEP(x) (CONSP (x) && EQ (XCAR (x), Qimage))
1668 (VECTORP (x) || STRINGP (x) || CHAR_TABLE_P (x) || BOOL_VECTOR_P (x))
1670 #define CHECK_LIST(x) \
1671 CHECK_TYPE (CONSP (x) || NILP (x), Qlistp, x)
1673 #define CHECK_LIST_CONS(x, y) \
1674 CHECK_TYPE (CONSP (x), Qlistp, y)
1676 #define CHECK_LIST_END(x, y) \
1677 CHECK_TYPE (NILP (x), Qlistp, y)
1679 #define CHECK_STRING(x) \
1680 CHECK_TYPE (STRINGP (x), Qstringp, x)
1682 #define CHECK_STRING_CAR(x) \
1683 CHECK_TYPE (STRINGP (XCAR (x)), Qstringp, XCAR (x))
1685 #define CHECK_CONS(x) \
1686 CHECK_TYPE (CONSP (x), Qconsp, x)
1688 #define CHECK_SYMBOL(x) \
1689 CHECK_TYPE (SYMBOLP (x), Qsymbolp, x)
1691 #define CHECK_CHAR_TABLE(x) \
1692 CHECK_TYPE (CHAR_TABLE_P (x), Qchar_table_p, x)
1694 #define CHECK_VECTOR(x) \
1695 CHECK_TYPE (VECTORP (x), Qvectorp, x)
1697 #define CHECK_VECTOR_OR_STRING(x) \
1698 CHECK_TYPE (VECTORP (x) || STRINGP (x), Qarrayp, x)
1700 #define CHECK_ARRAY(x, Qxxxp) \
1701 CHECK_TYPE (ARRAYP (x), Qxxxp, x)
1703 #define CHECK_VECTOR_OR_CHAR_TABLE(x) \
1704 CHECK_TYPE (VECTORP (x) || CHAR_TABLE_P (x), Qvector_or_char_table_p, x)
1706 #define CHECK_BUFFER(x) \
1707 CHECK_TYPE (BUFFERP (x), Qbufferp, x)
1709 #define CHECK_WINDOW(x) \
1710 CHECK_TYPE (WINDOWP (x), Qwindowp, x)
1712 #define CHECK_WINDOW_CONFIGURATION(x) \
1713 CHECK_TYPE (WINDOW_CONFIGURATIONP (x), Qwindow_configuration_p, x)
1715 /* This macro rejects windows on the interior of the window tree as
1716 "dead", which is what we want; this is an argument-checking macro, and
1717 the user should never get access to interior windows.
1719 A window of any sort, leaf or interior, is dead if the buffer,
1720 vchild, and hchild members are all nil. */
1722 #define CHECK_LIVE_WINDOW(x) \
1723 CHECK_TYPE (WINDOWP (x) && !NILP (XWINDOW (x)->buffer), Qwindow_live_p, x)
1725 #define CHECK_PROCESS(x) \
1726 CHECK_TYPE (PROCESSP (x), Qprocessp, x)
1728 #define CHECK_SUBR(x) \
1729 CHECK_TYPE (SUBRP (x), Qsubrp, x)
1731 #define CHECK_NUMBER(x) \
1732 CHECK_TYPE (INTEGERP (x), Qintegerp, x)
1734 #define CHECK_NATNUM(x) \
1735 CHECK_TYPE (NATNUMP (x), Qwholenump, x)
1737 #define CHECK_RANGED_INTEGER(lo, x, hi) \
1740 if (! ((lo) <= XINT (x) && XINT (x) <= (hi))) \
1741 args_out_of_range_3 \
1743 make_number ((lo) < 0 && (lo) < MOST_NEGATIVE_FIXNUM \
1744 ? MOST_NEGATIVE_FIXNUM \
1746 make_number (min (hi, MOST_POSITIVE_FIXNUM))); \
1748 #define CHECK_TYPE_RANGED_INTEGER(type, x) \
1750 if (TYPE_SIGNED (type)) \
1751 CHECK_RANGED_INTEGER (TYPE_MINIMUM (type), x, TYPE_MAXIMUM (type)); \
1753 CHECK_RANGED_INTEGER (0, x, TYPE_MAXIMUM (type)); \
1756 #define CHECK_MARKER(x) \
1757 CHECK_TYPE (MARKERP (x), Qmarkerp, x)
1759 #define CHECK_NUMBER_COERCE_MARKER(x) \
1760 do { if (MARKERP ((x))) XSETFASTINT (x, marker_position (x)); \
1761 else CHECK_TYPE (INTEGERP (x), Qinteger_or_marker_p, x); } while (0)
1763 #define XFLOATINT(n) extract_float((n))
1765 #define CHECK_FLOAT(x) \
1766 CHECK_TYPE (FLOATP (x), Qfloatp, x)
1768 #define CHECK_NUMBER_OR_FLOAT(x) \
1769 CHECK_TYPE (FLOATP (x) || INTEGERP (x), Qnumberp, x)
1771 #define CHECK_NUMBER_OR_FLOAT_COERCE_MARKER(x) \
1772 do { if (MARKERP (x)) XSETFASTINT (x, marker_position (x)); \
1773 else CHECK_TYPE (INTEGERP (x) || FLOATP (x), Qnumber_or_marker_p, x); } while (0)
1775 #define CHECK_OVERLAY(x) \
1776 CHECK_TYPE (OVERLAYP (x), Qoverlayp, x)
1778 /* Since we can't assign directly to the CAR or CDR fields of a cons
1779 cell, use these when checking that those fields contain numbers. */
1780 #define CHECK_NUMBER_CAR(x) \
1782 Lisp_Object tmp = XCAR (x); \
1783 CHECK_NUMBER (tmp); \
1784 XSETCAR ((x), tmp); \
1787 #define CHECK_NUMBER_CDR(x) \
1789 Lisp_Object tmp = XCDR (x); \
1790 CHECK_NUMBER (tmp); \
1791 XSETCDR ((x), tmp); \
1794 #define CHECK_NATNUM_CAR(x) \
1796 Lisp_Object tmp = XCAR (x); \
1797 CHECK_NATNUM (tmp); \
1798 XSETCAR ((x), tmp); \
1801 #define CHECK_NATNUM_CDR(x) \
1803 Lisp_Object tmp = XCDR (x); \
1804 CHECK_NATNUM (tmp); \
1805 XSETCDR ((x), tmp); \
1808 /* Define a built-in function for calling from Lisp.
1809 `lname' should be the name to give the function in Lisp,
1810 as a null-terminated C string.
1811 `fnname' should be the name of the function in C.
1812 By convention, it starts with F.
1813 `sname' should be the name for the C constant structure
1814 that records information on this function for internal use.
1815 By convention, it should be the same as `fnname' but with S instead of F.
1816 It's too bad that C macros can't compute this from `fnname'.
1817 `minargs' should be a number, the minimum number of arguments allowed.
1818 `maxargs' should be a number, the maximum number of arguments allowed,
1819 or else MANY or UNEVALLED.
1820 MANY means pass a vector of evaluated arguments,
1821 in the form of an integer number-of-arguments
1822 followed by the address of a vector of Lisp_Objects
1823 which contains the argument values.
1824 UNEVALLED means pass the list of unevaluated arguments
1825 `intspec' says how interactive arguments are to be fetched.
1826 If the string starts with a `(', `intspec' is evaluated and the resulting
1827 list is the list of arguments.
1828 If it's a string that doesn't start with `(', the value should follow
1829 the one of the doc string for `interactive'.
1830 A null string means call interactively with no arguments.
1831 `doc' is documentation for the user. */
1833 /* This version of DEFUN declares a function prototype with the right
1834 arguments, so we can catch errors with maxargs at compile-time. */
1836 #define DEFUN(lname, fnname, sname, minargs, maxargs, intspec, doc) \
1837 Lisp_Object fnname DEFUN_ARGS_ ## maxargs ; \
1838 static DECL_ALIGN (struct Lisp_Subr, sname) = \
1839 { PVEC_SUBR | (sizeof (struct Lisp_Subr) / sizeof (EMACS_INT)), \
1840 { (Lisp_Object (__cdecl *)(void))fnname }, \
1841 minargs, maxargs, lname, intspec, 0}; \
1843 #else /* not _MSC_VER */
1844 #define DEFUN(lname, fnname, sname, minargs, maxargs, intspec, doc) \
1845 Lisp_Object fnname DEFUN_ARGS_ ## maxargs ; \
1846 static DECL_ALIGN (struct Lisp_Subr, sname) = \
1848 { .a ## maxargs = fnname }, \
1849 minargs, maxargs, lname, intspec, 0}; \
1853 /* Note that the weird token-substitution semantics of ANSI C makes
1854 this work for MANY and UNEVALLED. */
1855 #define DEFUN_ARGS_MANY (ptrdiff_t, Lisp_Object *)
1856 #define DEFUN_ARGS_UNEVALLED (Lisp_Object)
1857 #define DEFUN_ARGS_0 (void)
1858 #define DEFUN_ARGS_1 (Lisp_Object)
1859 #define DEFUN_ARGS_2 (Lisp_Object, Lisp_Object)
1860 #define DEFUN_ARGS_3 (Lisp_Object, Lisp_Object, Lisp_Object)
1861 #define DEFUN_ARGS_4 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object)
1862 #define DEFUN_ARGS_5 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
1864 #define DEFUN_ARGS_6 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
1865 Lisp_Object, Lisp_Object)
1866 #define DEFUN_ARGS_7 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
1867 Lisp_Object, Lisp_Object, Lisp_Object)
1868 #define DEFUN_ARGS_8 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
1869 Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object)
1871 /* Non-zero if OBJ is a Lisp function. */
1872 #define FUNCTIONP(OBJ) \
1873 ((CONSP (OBJ) && EQ (XCAR (OBJ), Qlambda)) \
1874 || (SYMBOLP (OBJ) && !NILP (Ffboundp (OBJ))) \
1875 || COMPILEDP (OBJ) \
1879 is how we define the symbol for function `name' at start-up time. */
1880 extern void defsubr (struct Lisp_Subr
*);
1883 #define UNEVALLED -1
1885 extern void defvar_lisp (struct Lisp_Objfwd
*, const char *, Lisp_Object
*);
1886 extern void defvar_lisp_nopro (struct Lisp_Objfwd
*, const char *, Lisp_Object
*);
1887 extern void defvar_bool (struct Lisp_Boolfwd
*, const char *, int *);
1888 extern void defvar_int (struct Lisp_Intfwd
*, const char *, EMACS_INT
*);
1889 extern void defvar_kboard (struct Lisp_Kboard_Objfwd
*, const char *, int);
1891 /* Macros we use to define forwarded Lisp variables.
1892 These are used in the syms_of_FILENAME functions.
1894 An ordinary (not in buffer_defaults, per-buffer, or per-keyboard)
1895 lisp variable is actually a field in `struct emacs_globals'. The
1896 field's name begins with "f_", which is a convention enforced by
1897 these macros. Each such global has a corresponding #define in
1898 globals.h; the plain name should be used in the code.
1900 E.g., the global "cons_cells_consed" is declared as "int
1901 f_cons_cells_consed" in globals.h, but there is a define:
1903 #define cons_cells_consed globals.f_cons_cells_consed
1905 All C code uses the `cons_cells_consed' name. This is all done
1906 this way to support indirection for multi-threaded Emacs. */
1908 #define DEFVAR_LISP(lname, vname, doc) \
1910 static struct Lisp_Objfwd o_fwd; \
1911 defvar_lisp (&o_fwd, lname, &globals.f_ ## vname); \
1913 #define DEFVAR_LISP_NOPRO(lname, vname, doc) \
1915 static struct Lisp_Objfwd o_fwd; \
1916 defvar_lisp_nopro (&o_fwd, lname, &globals.f_ ## vname); \
1918 #define DEFVAR_BOOL(lname, vname, doc) \
1920 static struct Lisp_Boolfwd b_fwd; \
1921 defvar_bool (&b_fwd, lname, &globals.f_ ## vname); \
1923 #define DEFVAR_INT(lname, vname, doc) \
1925 static struct Lisp_Intfwd i_fwd; \
1926 defvar_int (&i_fwd, lname, &globals.f_ ## vname); \
1929 #define DEFVAR_BUFFER_DEFAULTS(lname, vname, doc) \
1931 static struct Lisp_Objfwd o_fwd; \
1932 defvar_lisp_nopro (&o_fwd, lname, &BVAR (&buffer_defaults, vname)); \
1935 #define DEFVAR_KBOARD(lname, vname, doc) \
1937 static struct Lisp_Kboard_Objfwd ko_fwd; \
1938 defvar_kboard (&ko_fwd, lname, offsetof (KBOARD, vname ## _)); \
1943 /* Structure for recording Lisp call stack for backtrace purposes. */
1945 /* The special binding stack holds the outer values of variables while
1946 they are bound by a function application or a let form, stores the
1947 code to be executed for Lisp unwind-protect forms, and stores the C
1948 functions to be called for record_unwind_protect.
1950 If func is non-zero, undoing this binding applies func to old_value;
1951 This implements record_unwind_protect.
1953 Otherwise, the element is a variable binding.
1955 If the symbol field is a symbol, it is an ordinary variable binding.
1957 Otherwise, it should be a structure (SYMBOL WHERE . CURRENT-BUFFER),
1958 which means having bound a local value while CURRENT-BUFFER was active.
1959 If WHERE is nil this means we saw the default value when binding SYMBOL.
1960 WHERE being a buffer or frame means we saw a buffer-local or frame-local
1961 value. Other values of WHERE mean an internal error. */
1963 typedef Lisp_Object (*specbinding_func
) (Lisp_Object
);
1967 Lisp_Object symbol
, old_value
;
1968 specbinding_func func
;
1969 Lisp_Object unused
; /* Dividing by 16 is faster than by 12 */
1972 extern struct specbinding
*specpdl
;
1973 extern struct specbinding
*specpdl_ptr
;
1974 extern ptrdiff_t specpdl_size
;
1976 #define SPECPDL_INDEX() (specpdl_ptr - specpdl)
1978 /* Everything needed to describe an active condition case. */
1981 /* The handler clauses and variable from the condition-case form. */
1982 /* For a handler set up in Lisp code, this is always a list.
1983 For an internal handler set up by internal_condition_case*,
1984 this can instead be the symbol t or `error'.
1985 t: handle all conditions.
1986 error: handle all conditions, and errors can run the debugger
1987 or display a backtrace. */
1988 Lisp_Object handler
;
1990 /* Fsignal stores here the condition-case clause that applies,
1991 and Fcondition_case thus knows which clause to run. */
1992 Lisp_Object chosen_clause
;
1994 /* Used to effect the longjump out to the handler. */
1995 struct catchtag
*tag
;
1997 /* The next enclosing handler. */
1998 struct handler
*next
;
2001 /* This structure helps implement the `catch' and `throw' control
2002 structure. A struct catchtag contains all the information needed
2003 to restore the state of the interpreter after a non-local jump.
2005 Handlers for error conditions (represented by `struct handler'
2006 structures) just point to a catch tag to do the cleanup required
2009 catchtag structures are chained together in the C calling stack;
2010 the `next' member points to the next outer catchtag.
2012 A call like (throw TAG VAL) searches for a catchtag whose `tag'
2013 member is TAG, and then unbinds to it. The `val' member is used to
2014 hold VAL while the stack is unwound; `val' is returned as the value
2017 All the other members are concerned with restoring the interpreter
2024 struct catchtag
*next
;
2025 struct gcpro
*gcpro
;
2027 struct backtrace
*backlist
;
2028 struct handler
*handlerlist
;
2029 EMACS_INT lisp_eval_depth
;
2031 int poll_suppress_count
;
2032 int interrupt_input_blocked
;
2033 struct byte_stack
*byte_stack
;
2036 extern Lisp_Object memory_signal_data
;
2038 /* An address near the bottom of the stack.
2039 Tells GC how to save a copy of the stack. */
2040 extern char *stack_bottom
;
2042 /* Check quit-flag and quit if it is non-nil.
2043 Typing C-g does not directly cause a quit; it only sets Vquit_flag.
2044 So the program needs to do QUIT at times when it is safe to quit.
2045 Every loop that might run for a long time or might not exit
2046 ought to do QUIT at least once, at a safe place.
2047 Unless that is impossible, of course.
2048 But it is very desirable to avoid creating loops where QUIT is impossible.
2050 Exception: if you set immediate_quit to nonzero,
2051 then the handler that responds to the C-g does the quit itself.
2052 This is a good thing to do around a loop that has no side effects
2053 and (in particular) cannot call arbitrary Lisp code.
2055 If quit-flag is set to `kill-emacs' the SIGINT handler has received
2056 a request to exit Emacs when it is safe to do. */
2059 extern void process_pending_signals (void);
2060 extern int pending_signals
;
2061 #define ELSE_PENDING_SIGNALS \
2062 else if (pending_signals) \
2063 process_pending_signals ();
2064 #else /* not SYNC_INPUT */
2065 #define ELSE_PENDING_SIGNALS
2066 #endif /* not SYNC_INPUT */
2068 extern void process_quit_flag (void);
2071 if (!NILP (Vquit_flag) && NILP (Vinhibit_quit)) \
2072 process_quit_flag (); \
2073 ELSE_PENDING_SIGNALS \
2077 /* Nonzero if ought to quit now. */
2079 #define QUITP (!NILP (Vquit_flag) && NILP (Vinhibit_quit))
2081 extern Lisp_Object Vascii_downcase_table
;
2082 extern Lisp_Object Vascii_canon_table
;
2084 /* Number of bytes of structure consed since last GC. */
2086 extern EMACS_INT consing_since_gc
;
2088 extern EMACS_INT gc_relative_threshold
;
2090 extern EMACS_INT memory_full_cons_threshold
;
2092 /* Structure for recording stack slots that need marking. */
2094 /* This is a chain of structures, each of which points at a Lisp_Object
2095 variable whose value should be marked in garbage collection.
2096 Normally every link of the chain is an automatic variable of a function,
2097 and its `val' points to some argument or local variable of the function.
2098 On exit to the function, the chain is set back to the value it had on entry.
2099 This way, no link remains in the chain when the stack frame containing the
2102 Every function that can call Feval must protect in this fashion all
2103 Lisp_Object variables whose contents will be used again. */
2105 extern struct gcpro
*gcprolist
;
2111 /* Address of first protected variable. */
2112 volatile Lisp_Object
*var
;
2114 /* Number of consecutive protected variables. */
2122 /* Values of GC_MARK_STACK during compilation:
2124 0 Use GCPRO as before
2125 1 Do the real thing, make GCPROs and UNGCPRO no-ops.
2126 2 Mark the stack, and check that everything GCPRO'd is
2128 3 Mark using GCPRO's, mark stack last, and count how many
2129 dead objects are kept alive. */
2132 #define GC_USE_GCPROS_AS_BEFORE 0
2133 #define GC_MAKE_GCPROS_NOOPS 1
2134 #define GC_MARK_STACK_CHECK_GCPROS 2
2135 #define GC_USE_GCPROS_CHECK_ZOMBIES 3
2137 #ifndef GC_MARK_STACK
2138 #define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS
2141 /* Whether we do the stack marking manually. */
2142 #define BYTE_MARK_STACK !(GC_MARK_STACK == GC_MAKE_GCPROS_NOOPS \
2143 || GC_MARK_STACK == GC_MARK_STACK_CHECK_GCPROS)
2146 #if GC_MARK_STACK == GC_MAKE_GCPROS_NOOPS
2148 /* Do something silly with gcproN vars just so gcc shuts up. */
2149 /* You get warnings from MIPSPro... */
2151 #define GCPRO1(varname) ((void) gcpro1)
2152 #define GCPRO2(varname1, varname2) ((void) gcpro2, (void) gcpro1)
2153 #define GCPRO3(varname1, varname2, varname3) \
2154 ((void) gcpro3, (void) gcpro2, (void) gcpro1)
2155 #define GCPRO4(varname1, varname2, varname3, varname4) \
2156 ((void) gcpro4, (void) gcpro3, (void) gcpro2, (void) gcpro1)
2157 #define GCPRO5(varname1, varname2, varname3, varname4, varname5) \
2158 ((void) gcpro5, (void) gcpro4, (void) gcpro3, (void) gcpro2, (void) gcpro1)
2159 #define GCPRO6(varname1, varname2, varname3, varname4, varname5, varname6) \
2160 ((void) gcpro6, (void) gcpro5, (void) gcpro4, (void) gcpro3, (void) gcpro2, \
2162 #define UNGCPRO ((void) 0)
2164 #else /* GC_MARK_STACK != GC_MAKE_GCPROS_NOOPS */
2168 #define GCPRO1(varname) \
2169 {gcpro1.next = gcprolist; gcpro1.var = &varname; gcpro1.nvars = 1; \
2170 gcprolist = &gcpro1; }
2172 #define GCPRO2(varname1, varname2) \
2173 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
2174 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
2175 gcprolist = &gcpro2; }
2177 #define GCPRO3(varname1, varname2, varname3) \
2178 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
2179 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
2180 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
2181 gcprolist = &gcpro3; }
2183 #define GCPRO4(varname1, varname2, varname3, varname4) \
2184 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
2185 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
2186 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
2187 gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \
2188 gcprolist = &gcpro4; }
2190 #define GCPRO5(varname1, varname2, varname3, varname4, varname5) \
2191 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
2192 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
2193 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
2194 gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \
2195 gcpro5.next = &gcpro4; gcpro5.var = &varname5; gcpro5.nvars = 1; \
2196 gcprolist = &gcpro5; }
2198 #define GCPRO6(varname1, varname2, varname3, varname4, varname5, varname6) \
2199 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
2200 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
2201 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
2202 gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \
2203 gcpro5.next = &gcpro4; gcpro5.var = &varname5; gcpro5.nvars = 1; \
2204 gcpro6.next = &gcpro5; gcpro6.var = &varname6; gcpro6.nvars = 1; \
2205 gcprolist = &gcpro6; }
2207 #define UNGCPRO (gcprolist = gcpro1.next)
2211 extern int gcpro_level
;
2213 #define GCPRO1(varname) \
2214 {gcpro1.next = gcprolist; gcpro1.var = &varname; gcpro1.nvars = 1; \
2215 gcpro1.level = gcpro_level++; \
2216 gcprolist = &gcpro1; }
2218 #define GCPRO2(varname1, varname2) \
2219 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
2220 gcpro1.level = gcpro_level; \
2221 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
2222 gcpro2.level = gcpro_level++; \
2223 gcprolist = &gcpro2; }
2225 #define GCPRO3(varname1, varname2, varname3) \
2226 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
2227 gcpro1.level = gcpro_level; \
2228 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
2229 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
2230 gcpro3.level = gcpro_level++; \
2231 gcprolist = &gcpro3; }
2233 #define GCPRO4(varname1, varname2, varname3, varname4) \
2234 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
2235 gcpro1.level = gcpro_level; \
2236 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
2237 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
2238 gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \
2239 gcpro4.level = gcpro_level++; \
2240 gcprolist = &gcpro4; }
2242 #define GCPRO5(varname1, varname2, varname3, varname4, varname5) \
2243 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
2244 gcpro1.level = gcpro_level; \
2245 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
2246 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
2247 gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \
2248 gcpro5.next = &gcpro4; gcpro5.var = &varname5; gcpro5.nvars = 1; \
2249 gcpro5.level = gcpro_level++; \
2250 gcprolist = &gcpro5; }
2252 #define GCPRO6(varname1, varname2, varname3, varname4, varname5, varname6) \
2253 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
2254 gcpro1.level = gcpro_level; \
2255 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
2256 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
2257 gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \
2258 gcpro5.next = &gcpro4; gcpro5.var = &varname5; gcpro5.nvars = 1; \
2259 gcpro6.next = &gcpro5; gcpro6.var = &varname6; gcpro6.nvars = 1; \
2260 gcpro6.level = gcpro_level++; \
2261 gcprolist = &gcpro6; }
2264 ((--gcpro_level != gcpro1.level) \
2266 : ((gcprolist = gcpro1.next), 0))
2268 #endif /* DEBUG_GCPRO */
2269 #endif /* GC_MARK_STACK != GC_MAKE_GCPROS_NOOPS */
2272 /* Evaluate expr, UNGCPRO, and then return the value of expr. */
2273 #define RETURN_UNGCPRO(expr) \
2276 Lisp_Object ret_ungc_val; \
2277 ret_ungc_val = (expr); \
2279 return ret_ungc_val; \
2283 /* Call staticpro (&var) to protect static variable `var'. */
2285 void staticpro (Lisp_Object
*);
2287 /* Declare a Lisp-callable function. The MAXARGS parameter has the same
2288 meaning as in the DEFUN macro, and is used to construct a prototype. */
2289 /* We can use the same trick as in the DEFUN macro to generate the
2290 appropriate prototype. */
2291 #define EXFUN(fnname, maxargs) \
2292 extern Lisp_Object fnname DEFUN_ARGS_ ## maxargs
2294 /* Forward declarations for prototypes. */
2298 /* Defined in data.c. */
2299 extern Lisp_Object Qnil
, Qt
, Qquote
, Qlambda
, Qunbound
;
2300 extern Lisp_Object Qerror_conditions
, Qerror_message
, Qtop_level
;
2301 extern Lisp_Object Qerror
, Qquit
, Qargs_out_of_range
;
2302 extern Lisp_Object Qvoid_variable
, Qvoid_function
;
2303 extern Lisp_Object Qinvalid_read_syntax
;
2304 extern Lisp_Object Qinvalid_function
, Qwrong_number_of_arguments
, Qno_catch
;
2305 extern Lisp_Object Quser_error
, Qend_of_file
, Qarith_error
, Qmark_inactive
;
2306 extern Lisp_Object Qbeginning_of_buffer
, Qend_of_buffer
, Qbuffer_read_only
;
2307 extern Lisp_Object Qtext_read_only
;
2308 extern Lisp_Object Qinteractive_form
;
2309 extern Lisp_Object Qcircular_list
;
2310 extern Lisp_Object Qintegerp
, Qwholenump
, Qsymbolp
, Qlistp
, Qconsp
;
2311 extern Lisp_Object Qstringp
, Qarrayp
, Qsequencep
, Qbufferp
;
2312 extern Lisp_Object Qchar_or_string_p
, Qmarkerp
, Qinteger_or_marker_p
, Qvectorp
;
2313 extern Lisp_Object Qbuffer_or_string_p
;
2314 extern Lisp_Object Qfboundp
;
2315 extern Lisp_Object Qchar_table_p
, Qvector_or_char_table_p
;
2317 extern Lisp_Object Qcdr
;
2319 extern Lisp_Object Qrange_error
, Qdomain_error
, Qsingularity_error
;
2320 extern Lisp_Object Qoverflow_error
, Qunderflow_error
;
2322 extern Lisp_Object Qfloatp
;
2323 extern Lisp_Object Qnumberp
, Qnumber_or_marker_p
;
2325 extern Lisp_Object Qinteger
;
2327 extern Lisp_Object Qfont_spec
, Qfont_entity
, Qfont_object
;
2329 EXFUN (Finteractive_form
, 1);
2330 EXFUN (Fbyteorder
, 0);
2332 /* Defined in frame.c */
2333 extern Lisp_Object Qframep
;
2335 /* Defined in data.c */
2337 EXFUN (Fcar_safe
, 1);
2339 EXFUN (Fcdr_safe
, 1);
2343 EXFUN (Ffboundp
, 1);
2344 EXFUN (Fsymbol_function
, 1);
2345 EXFUN (Fsymbol_name
, 1);
2346 extern Lisp_Object
indirect_function (Lisp_Object
);
2347 EXFUN (Findirect_function
, 2);
2349 EXFUN (Fsymbol_value
, 1);
2350 extern Lisp_Object
find_symbol_value (Lisp_Object
);
2352 EXFUN (Fdefault_value
, 1);
2353 EXFUN (Fset_default
, 2);
2354 EXFUN (Fdefault_boundp
, 1);
2355 EXFUN (Fmake_local_variable
, 1);
2356 EXFUN (Flocal_variable_p
, 2);
2361 EXFUN (Fstring_to_number
, 2);
2362 EXFUN (Fnumber_to_string
, 1);
2368 EXFUN (Fplus
, MANY
);
2369 EXFUN (Fminus
, MANY
);
2370 EXFUN (Ftimes
, MANY
);
2378 EXFUN (Fmake_variable_buffer_local
, 1);
2380 /* Convert the integer I to an Emacs representation, either the integer
2381 itself, or a cons of two or three integers, or if all else fails a float.
2382 I should not have side effects. */
2383 #define INTEGER_TO_CONS(i) \
2384 (! FIXNUM_OVERFLOW_P (i) \
2386 : ! ((FIXNUM_OVERFLOW_P (INTMAX_MIN >> 16) \
2387 || FIXNUM_OVERFLOW_P (UINTMAX_MAX >> 16)) \
2388 && FIXNUM_OVERFLOW_P ((i) >> 16)) \
2389 ? Fcons (make_number ((i) >> 16), make_number ((i) & 0xffff)) \
2390 : ! ((FIXNUM_OVERFLOW_P (INTMAX_MIN >> 16 >> 24) \
2391 || FIXNUM_OVERFLOW_P (UINTMAX_MAX >> 16 >> 24)) \
2392 && FIXNUM_OVERFLOW_P ((i) >> 16 >> 24)) \
2393 ? Fcons (make_number ((i) >> 16 >> 24), \
2394 Fcons (make_number ((i) >> 16 & 0xffffff), \
2395 make_number ((i) & 0xffff))) \
2398 /* Convert the Emacs representation CONS back to an integer of type
2399 TYPE, storing the result the variable VAR. Signal an error if CONS
2400 is not a valid representation or is out of range for TYPE. */
2401 #define CONS_TO_INTEGER(cons, type, var) \
2402 (TYPE_SIGNED (type) \
2403 ? ((var) = cons_to_signed (cons, TYPE_MINIMUM (type), TYPE_MAXIMUM (type))) \
2404 : ((var) = cons_to_unsigned (cons, TYPE_MAXIMUM (type))))
2405 extern intmax_t cons_to_signed (Lisp_Object
, intmax_t, intmax_t);
2406 extern uintmax_t cons_to_unsigned (Lisp_Object
, uintmax_t);
2408 extern struct Lisp_Symbol
*indirect_variable (struct Lisp_Symbol
*);
2409 extern void args_out_of_range (Lisp_Object
, Lisp_Object
) NO_RETURN
;
2410 extern void args_out_of_range_3 (Lisp_Object
, Lisp_Object
,
2411 Lisp_Object
) NO_RETURN
;
2412 extern Lisp_Object
wrong_type_argument (Lisp_Object
, Lisp_Object
) NO_RETURN
;
2413 extern Lisp_Object
do_symval_forwarding (union Lisp_Fwd
*);
2414 extern void set_internal (Lisp_Object
, Lisp_Object
, Lisp_Object
, int);
2415 extern void syms_of_data (void);
2416 extern void init_data (void);
2417 extern void swap_in_global_binding (struct Lisp_Symbol
*);
2419 /* Defined in cmds.c */
2420 EXFUN (Fend_of_line
, 1);
2421 EXFUN (Fforward_char
, 1);
2422 EXFUN (Fforward_line
, 1);
2423 extern void syms_of_cmds (void);
2424 extern void keys_of_cmds (void);
2426 /* Defined in coding.c */
2427 extern Lisp_Object Qcharset
;
2428 EXFUN (Fcoding_system_p
, 1);
2429 EXFUN (Fcoding_system_base
, 1);
2430 EXFUN (Fcoding_system_eol_type
, 1);
2431 EXFUN (Fcheck_coding_system
, 1);
2432 EXFUN (Fread_coding_system
, 2);
2433 EXFUN (Fread_non_nil_coding_system
, 1);
2434 EXFUN (Ffind_operation_coding_system
, MANY
);
2435 EXFUN (Fdecode_coding_string
, 4);
2436 extern Lisp_Object
detect_coding_system (const unsigned char *, ptrdiff_t,
2437 ptrdiff_t, int, int, Lisp_Object
);
2438 extern void init_coding (void);
2439 extern void init_coding_once (void);
2440 extern void syms_of_coding (void);
2442 /* Defined in character.c */
2443 EXFUN (Fchar_width
, 1);
2444 EXFUN (Fstring
, MANY
);
2445 extern ptrdiff_t chars_in_text (const unsigned char *, ptrdiff_t);
2446 extern ptrdiff_t multibyte_chars_in_text (const unsigned char *, ptrdiff_t);
2447 extern int multibyte_char_to_unibyte (int);
2448 extern int multibyte_char_to_unibyte_safe (int);
2449 extern void init_character_once (void);
2450 extern void syms_of_character (void);
2452 /* Defined in charset.c */
2453 extern void init_charset (void);
2454 extern void init_charset_once (void);
2455 extern void syms_of_charset (void);
2456 /* Structure forward declarations. */
2459 /* Defined in composite.c */
2460 extern void syms_of_composite (void);
2462 /* Defined in syntax.c */
2463 EXFUN (Fforward_word
, 1);
2464 EXFUN (Fskip_chars_forward
, 2);
2465 EXFUN (Fskip_chars_backward
, 2);
2466 extern void init_syntax_once (void);
2467 extern void syms_of_syntax (void);
2469 /* Defined in fns.c */
2470 extern Lisp_Object QCrehash_size
, QCrehash_threshold
;
2471 enum { NEXT_ALMOST_PRIME_LIMIT
= 11 };
2472 extern EMACS_INT
next_almost_prime (EMACS_INT
);
2473 extern Lisp_Object
larger_vector (Lisp_Object
, ptrdiff_t, ptrdiff_t);
2474 extern void sweep_weak_hash_tables (void);
2475 extern Lisp_Object Qcursor_in_echo_area
;
2476 extern Lisp_Object Qstring_lessp
;
2477 extern Lisp_Object QCsize
, QCtest
, QCweakness
, Qequal
, Qeq
, Qeql
;
2478 EMACS_UINT
hash_string (char const *, ptrdiff_t);
2479 EMACS_UINT
sxhash (Lisp_Object
, int);
2480 Lisp_Object
make_hash_table (Lisp_Object
, Lisp_Object
, Lisp_Object
,
2481 Lisp_Object
, Lisp_Object
, Lisp_Object
,
2483 ptrdiff_t hash_lookup (struct Lisp_Hash_Table
*, Lisp_Object
, EMACS_UINT
*);
2484 ptrdiff_t hash_put (struct Lisp_Hash_Table
*, Lisp_Object
, Lisp_Object
,
2486 void init_weak_hash_tables (void);
2487 extern void init_fns (void);
2488 EXFUN (Fmake_hash_table
, MANY
);
2489 EXFUN (Fgethash
, 3);
2490 EXFUN (Fputhash
, 3);
2491 EXFUN (Fremhash
, 2);
2493 EXFUN (Fidentity
, 1);
2495 EXFUN (Fappend
, MANY
);
2496 EXFUN (Fconcat
, MANY
);
2497 EXFUN (Fvconcat
, MANY
);
2498 EXFUN (Fcopy_sequence
, 1);
2499 EXFUN (Fstring_make_multibyte
, 1);
2500 EXFUN (Fstring_make_unibyte
, 1);
2501 EXFUN (Fstring_as_multibyte
, 1);
2502 EXFUN (Fstring_as_unibyte
, 1);
2503 EXFUN (Fstring_to_multibyte
, 1);
2504 EXFUN (Fsubstring
, 3);
2505 extern Lisp_Object
substring_both (Lisp_Object
, ptrdiff_t, ptrdiff_t,
2506 ptrdiff_t, ptrdiff_t);
2518 EXFUN (Freverse
, 1);
2519 EXFUN (Fnreverse
, 1);
2523 EXFUN (Fnconc
, MANY
);
2525 EXFUN (Fmapconcat
, 3);
2526 extern Lisp_Object
do_yes_or_no_p (Lisp_Object
);
2527 EXFUN (Fprovide
, 2);
2528 extern Lisp_Object
concat2 (Lisp_Object
, Lisp_Object
);
2529 extern Lisp_Object
concat3 (Lisp_Object
, Lisp_Object
, Lisp_Object
);
2530 extern Lisp_Object
nconc2 (Lisp_Object
, Lisp_Object
);
2531 extern Lisp_Object
assq_no_quit (Lisp_Object
, Lisp_Object
);
2532 extern Lisp_Object
assoc_no_quit (Lisp_Object
, Lisp_Object
);
2533 extern void clear_string_char_byte_cache (void);
2534 extern ptrdiff_t string_char_to_byte (Lisp_Object
, ptrdiff_t);
2535 extern ptrdiff_t string_byte_to_char (Lisp_Object
, ptrdiff_t);
2536 extern Lisp_Object
string_to_multibyte (Lisp_Object
);
2537 extern Lisp_Object
string_make_unibyte (Lisp_Object
);
2538 EXFUN (Fcopy_alist
, 1);
2539 EXFUN (Fplist_get
, 2);
2540 EXFUN (Fplist_put
, 3);
2541 EXFUN (Fplist_member
, 2);
2543 EXFUN (Fstring_equal
, 2);
2544 EXFUN (Fcompare_strings
, 7);
2545 EXFUN (Fstring_lessp
, 2);
2546 extern void syms_of_fns (void);
2548 /* Defined in floatfns.c */
2549 extern double extract_float (Lisp_Object
);
2551 EXFUN (Ftruncate
, 2);
2552 extern void init_floatfns (void);
2553 extern void syms_of_floatfns (void);
2554 extern Lisp_Object
fmod_float (Lisp_Object x
, Lisp_Object y
);
2556 /* Defined in fringe.c */
2557 extern void syms_of_fringe (void);
2558 extern void init_fringe (void);
2559 #ifdef HAVE_WINDOW_SYSTEM
2560 extern void mark_fringe_data (void);
2561 extern void init_fringe_once (void);
2562 #endif /* HAVE_WINDOW_SYSTEM */
2564 /* Defined in image.c */
2565 extern Lisp_Object QCascent
, QCmargin
, QCrelief
;
2566 extern Lisp_Object QCconversion
;
2567 extern int x_bitmap_mask (struct frame
*, ptrdiff_t);
2568 extern void syms_of_image (void);
2569 extern void init_image (void);
2571 /* Defined in insdel.c */
2572 extern Lisp_Object Qinhibit_modification_hooks
;
2573 extern void move_gap (ptrdiff_t);
2574 extern void move_gap_both (ptrdiff_t, ptrdiff_t);
2575 extern void buffer_overflow (void) NO_RETURN
;
2576 extern void make_gap (ptrdiff_t);
2577 extern ptrdiff_t copy_text (const unsigned char *, unsigned char *,
2578 ptrdiff_t, int, int);
2579 extern int count_combining_before (const unsigned char *,
2580 ptrdiff_t, ptrdiff_t, ptrdiff_t);
2581 extern int count_combining_after (const unsigned char *,
2582 ptrdiff_t, ptrdiff_t, ptrdiff_t);
2583 extern void insert (const char *, ptrdiff_t);
2584 extern void insert_and_inherit (const char *, ptrdiff_t);
2585 extern void insert_1 (const char *, ptrdiff_t, int, int, int);
2586 extern void insert_1_both (const char *, ptrdiff_t, ptrdiff_t,
2588 extern void insert_from_gap (ptrdiff_t, ptrdiff_t);
2589 extern void insert_from_string (Lisp_Object
, ptrdiff_t, ptrdiff_t,
2590 ptrdiff_t, ptrdiff_t, int);
2591 extern void insert_from_buffer (struct buffer
*, ptrdiff_t, ptrdiff_t, int);
2592 extern void insert_char (int);
2593 extern void insert_string (const char *);
2594 extern void insert_before_markers (const char *, ptrdiff_t);
2595 extern void insert_before_markers_and_inherit (const char *, ptrdiff_t);
2596 extern void insert_from_string_before_markers (Lisp_Object
, ptrdiff_t,
2597 ptrdiff_t, ptrdiff_t,
2599 extern void del_range (ptrdiff_t, ptrdiff_t);
2600 extern Lisp_Object
del_range_1 (ptrdiff_t, ptrdiff_t, int, int);
2601 extern void del_range_byte (ptrdiff_t, ptrdiff_t, int);
2602 extern void del_range_both (ptrdiff_t, ptrdiff_t, ptrdiff_t, ptrdiff_t, int);
2603 extern Lisp_Object
del_range_2 (ptrdiff_t, ptrdiff_t,
2604 ptrdiff_t, ptrdiff_t, int);
2605 extern void modify_region (struct buffer
*, ptrdiff_t, ptrdiff_t, int);
2606 extern void prepare_to_modify_buffer (ptrdiff_t, ptrdiff_t, ptrdiff_t *);
2607 extern void signal_after_change (ptrdiff_t, ptrdiff_t, ptrdiff_t);
2608 extern void adjust_after_insert (ptrdiff_t, ptrdiff_t, ptrdiff_t,
2609 ptrdiff_t, ptrdiff_t);
2610 extern void adjust_markers_for_delete (ptrdiff_t, ptrdiff_t,
2611 ptrdiff_t, ptrdiff_t);
2612 extern void replace_range (ptrdiff_t, ptrdiff_t, Lisp_Object
, int, int, int);
2613 extern void replace_range_2 (ptrdiff_t, ptrdiff_t, ptrdiff_t, ptrdiff_t,
2614 const char *, ptrdiff_t, ptrdiff_t, int);
2615 extern void syms_of_insdel (void);
2617 /* Defined in dispnew.c */
2618 #if (defined PROFILING \
2619 && (defined __FreeBSD__ || defined GNU_LINUX || defined __MINGW32__))
2620 void __executable_start (void) NO_RETURN
;
2622 extern Lisp_Object selected_frame
;
2623 extern Lisp_Object Vwindow_system
;
2625 EXFUN (Fredraw_frame
, 1);
2626 void duration_to_sec_usec (double, int *, int *);
2627 EXFUN (Fsleep_for
, 2);
2628 EXFUN (Fredisplay
, 1);
2629 extern Lisp_Object
sit_for (Lisp_Object
, int, int);
2630 extern void init_display (void);
2631 extern void syms_of_display (void);
2633 /* Defined in xdisp.c */
2634 extern Lisp_Object Qinhibit_point_motion_hooks
;
2635 extern Lisp_Object Qinhibit_redisplay
, Qdisplay
;
2636 extern Lisp_Object Qmenu_bar_update_hook
;
2637 extern Lisp_Object Qwindow_scroll_functions
;
2638 extern Lisp_Object Qoverriding_local_map
, Qoverriding_terminal_local_map
;
2639 extern Lisp_Object Qimage
, Qtext
, Qboth
, Qboth_horiz
, Qtext_image_horiz
;
2640 extern Lisp_Object Qspace
, Qcenter
, QCalign_to
;
2641 extern Lisp_Object Qbar
, Qhbar
, Qbox
, Qhollow
;
2642 extern Lisp_Object Qleft_margin
, Qright_margin
;
2643 extern Lisp_Object Qglyphless_char
;
2644 extern Lisp_Object QCdata
, QCfile
;
2645 extern Lisp_Object QCmap
;
2646 extern Lisp_Object Qrisky_local_variable
;
2647 extern struct frame
*last_glyphless_glyph_frame
;
2648 extern int last_glyphless_glyph_face_id
;
2649 extern int last_glyphless_glyph_merged_face_id
;
2650 extern int noninteractive_need_newline
;
2651 extern Lisp_Object echo_area_buffer
[2];
2652 extern void add_to_log (const char *, Lisp_Object
, Lisp_Object
);
2653 extern void check_message_stack (void);
2654 extern void setup_echo_area_for_printing (int);
2655 extern int push_message (void);
2656 extern Lisp_Object
pop_message_unwind (Lisp_Object
);
2657 extern Lisp_Object
restore_message_unwind (Lisp_Object
);
2658 extern void restore_message (void);
2659 extern Lisp_Object
current_message (void);
2660 extern void clear_message (int, int);
2661 extern void message (const char *, ...) ATTRIBUTE_FORMAT_PRINTF (1, 2);
2662 extern void message1 (const char *);
2663 extern void message1_nolog (const char *);
2664 extern void message2 (const char *, ptrdiff_t, int);
2665 extern void message2_nolog (const char *, ptrdiff_t, int);
2666 extern void message3 (Lisp_Object
, ptrdiff_t, int);
2667 extern void message3_nolog (Lisp_Object
, ptrdiff_t, int);
2668 extern void message_dolog (const char *, ptrdiff_t, int, int);
2669 extern void message_with_string (const char *, Lisp_Object
, int);
2670 extern void message_log_maybe_newline (void);
2671 extern void update_echo_area (void);
2672 extern void truncate_echo_area (ptrdiff_t);
2673 extern void redisplay (void);
2674 extern void redisplay_preserve_echo_area (int);
2675 extern void prepare_menu_bars (void);
2677 void set_frame_cursor_types (struct frame
*, Lisp_Object
);
2678 extern void syms_of_xdisp (void);
2679 extern void init_xdisp (void);
2680 extern Lisp_Object
safe_eval (Lisp_Object
);
2681 extern int pos_visible_p (struct window
*, ptrdiff_t, int *,
2682 int *, int *, int *, int *, int *);
2684 /* Defined in xsettings.c */
2685 extern void syms_of_xsettings (void);
2687 /* Defined in vm-limit.c. */
2688 extern void memory_warnings (void *, void (*warnfun
) (const char *));
2690 /* Defined in alloc.c */
2691 extern void check_pure_size (void);
2692 extern void allocate_string_data (struct Lisp_String
*, EMACS_INT
, EMACS_INT
);
2693 extern void reset_malloc_hooks (void);
2694 extern void uninterrupt_malloc (void);
2695 extern void malloc_warning (const char *);
2696 extern void memory_full (size_t) NO_RETURN
;
2697 extern void buffer_memory_full (ptrdiff_t) NO_RETURN
;
2698 extern int survives_gc_p (Lisp_Object
);
2699 extern void mark_object (Lisp_Object
);
2700 #if defined REL_ALLOC && !defined SYSTEM_MALLOC
2701 extern void refill_memory_reserve (void);
2703 extern const char *pending_malloc_warning
;
2704 extern Lisp_Object
*stack_base
;
2706 extern Lisp_Object
list1 (Lisp_Object
);
2707 extern Lisp_Object
list2 (Lisp_Object
, Lisp_Object
);
2708 extern Lisp_Object
list3 (Lisp_Object
, Lisp_Object
, Lisp_Object
);
2709 extern Lisp_Object
list4 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
2710 extern Lisp_Object
list5 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
,
2712 EXFUN (Flist
, MANY
);
2713 EXFUN (Fmake_list
, 2);
2714 extern Lisp_Object
allocate_misc (void);
2715 EXFUN (Fmake_vector
, 2);
2716 EXFUN (Fvector
, MANY
);
2717 EXFUN (Fmake_symbol
, 1);
2718 EXFUN (Fmake_marker
, 0);
2719 extern void string_overflow (void) NO_RETURN
;
2720 EXFUN (Fmake_string
, 2);
2721 extern Lisp_Object
build_string (const char *);
2722 extern Lisp_Object
make_string (const char *, ptrdiff_t);
2723 extern Lisp_Object
make_unibyte_string (const char *, ptrdiff_t);
2724 extern Lisp_Object
make_multibyte_string (const char *, ptrdiff_t, ptrdiff_t);
2725 extern Lisp_Object
make_event_array (int, Lisp_Object
*);
2726 extern Lisp_Object
make_uninit_string (EMACS_INT
);
2727 extern Lisp_Object
make_uninit_multibyte_string (EMACS_INT
, EMACS_INT
);
2728 extern Lisp_Object
make_string_from_bytes (const char *, ptrdiff_t, ptrdiff_t);
2729 extern Lisp_Object
make_specified_string (const char *,
2730 ptrdiff_t, ptrdiff_t, int);
2731 EXFUN (Fpurecopy
, 1);
2732 extern Lisp_Object
make_pure_string (const char *, ptrdiff_t, ptrdiff_t, int);
2733 extern Lisp_Object
make_pure_c_string (const char *data
);
2734 extern Lisp_Object
pure_cons (Lisp_Object
, Lisp_Object
);
2735 EXFUN (Fgarbage_collect
, 0);
2736 extern void make_byte_code (struct Lisp_Vector
*);
2737 EXFUN (Fmake_byte_code
, MANY
);
2738 EXFUN (Fmake_bool_vector
, 2);
2739 extern Lisp_Object Qchar_table_extra_slots
;
2740 extern struct Lisp_Vector
*allocate_vector (EMACS_INT
);
2741 extern struct Lisp_Vector
*allocate_pseudovector (int memlen
, int lisplen
, int tag
);
2742 #define ALLOCATE_PSEUDOVECTOR(typ,field,tag) \
2744 allocate_pseudovector \
2745 (VECSIZE (typ), PSEUDOVECSIZE (typ, field), tag))
2746 extern struct Lisp_Hash_Table
*allocate_hash_table (void);
2747 extern struct window
*allocate_window (void);
2748 extern struct frame
*allocate_frame (void);
2749 extern struct Lisp_Process
*allocate_process (void);
2750 extern struct terminal
*allocate_terminal (void);
2751 extern int gc_in_progress
;
2752 extern int abort_on_gc
;
2753 extern Lisp_Object
make_float (double);
2754 extern void display_malloc_warning (void);
2755 extern ptrdiff_t inhibit_garbage_collection (void);
2756 extern Lisp_Object
make_save_value (void *, ptrdiff_t);
2757 extern void free_marker (Lisp_Object
);
2758 extern void free_cons (struct Lisp_Cons
*);
2759 extern void init_alloc_once (void);
2760 extern void init_alloc (void);
2761 extern void syms_of_alloc (void);
2762 extern struct buffer
* allocate_buffer (void);
2763 extern int valid_lisp_object_p (Lisp_Object
);
2766 /* Defined in ralloc.c */
2767 extern void *r_alloc (void **, size_t);
2768 extern void r_alloc_free (void **);
2769 extern void *r_re_alloc (void **, size_t);
2770 extern void r_alloc_reset_variable (void **, void **);
2771 extern void r_alloc_inhibit_buffer_relocation (int);
2774 /* Defined in chartab.c */
2775 EXFUN (Fmake_char_table
, 2);
2776 EXFUN (Fset_char_table_parent
, 2);
2777 EXFUN (Fchar_table_extra_slot
, 2);
2778 EXFUN (Fset_char_table_extra_slot
, 3);
2779 EXFUN (Fset_char_table_range
, 3);
2780 EXFUN (Foptimize_char_table
, 2);
2781 extern Lisp_Object
copy_char_table (Lisp_Object
);
2782 extern Lisp_Object
char_table_ref (Lisp_Object
, int);
2783 extern Lisp_Object
char_table_ref_and_range (Lisp_Object
, int,
2785 extern Lisp_Object
char_table_set (Lisp_Object
, int, Lisp_Object
);
2786 extern Lisp_Object
char_table_set_range (Lisp_Object
, int, int,
2788 extern int char_table_translate (Lisp_Object
, int);
2789 extern void map_char_table (void (*) (Lisp_Object
, Lisp_Object
,
2791 Lisp_Object
, Lisp_Object
, Lisp_Object
);
2792 extern void map_char_table_for_charset (void (*c_function
) (Lisp_Object
, Lisp_Object
),
2793 Lisp_Object
, Lisp_Object
,
2794 Lisp_Object
, struct charset
*,
2795 unsigned, unsigned);
2796 extern Lisp_Object
uniprop_table (Lisp_Object
);
2797 extern void syms_of_chartab (void);
2799 /* Defined in print.c */
2800 extern Lisp_Object Vprin1_to_string_buffer
;
2801 extern void debug_print (Lisp_Object
) EXTERNALLY_VISIBLE
;
2803 EXFUN (Fprin1_to_string
, 2);
2806 EXFUN (Ferror_message_string
, 1);
2807 extern Lisp_Object Qstandard_output
;
2808 extern Lisp_Object Qexternal_debugging_output
;
2809 extern void temp_output_buffer_setup (const char *);
2810 extern int print_level
;
2811 extern Lisp_Object Qprint_escape_newlines
;
2812 extern void write_string (const char *, int);
2813 extern void print_error_message (Lisp_Object
, Lisp_Object
, const char *,
2815 extern Lisp_Object internal_with_output_to_temp_buffer
2816 (const char *, Lisp_Object (*) (Lisp_Object
), Lisp_Object
);
2817 #define FLOAT_TO_STRING_BUFSIZE 350
2818 extern void float_to_string (char *, double);
2819 extern void syms_of_print (void);
2821 /* Defined in doprnt.c */
2822 extern ptrdiff_t doprnt (char *, ptrdiff_t, const char *, const char *,
2824 extern ptrdiff_t esprintf (char *, char const *, ...)
2825 ATTRIBUTE_FORMAT_PRINTF (2, 3);
2826 extern ptrdiff_t exprintf (char **, ptrdiff_t *, char const *, ptrdiff_t,
2828 ATTRIBUTE_FORMAT_PRINTF (5, 6);
2829 extern ptrdiff_t evxprintf (char **, ptrdiff_t *, char const *, ptrdiff_t,
2830 char const *, va_list)
2831 ATTRIBUTE_FORMAT_PRINTF (5, 0);
2833 /* Defined in lread.c. */
2834 extern Lisp_Object Qvariable_documentation
, Qstandard_input
;
2835 extern Lisp_Object Qbackquote
, Qcomma
, Qcomma_at
, Qcomma_dot
, Qfunction
;
2837 EXFUN (Fread_from_string
, 3);
2839 EXFUN (Fintern_soft
, 2);
2840 EXFUN (Funintern
, 2);
2842 EXFUN (Fget_load_suffixes
, 0);
2843 EXFUN (Fread_char
, 3);
2844 EXFUN (Fread_event
, 3);
2845 extern Lisp_Object
check_obarray (Lisp_Object
);
2846 extern Lisp_Object
intern (const char *);
2847 extern Lisp_Object
intern_c_string (const char *);
2848 extern Lisp_Object
oblookup (Lisp_Object
, const char *, ptrdiff_t, ptrdiff_t);
2849 #define LOADHIST_ATTACH(x) \
2851 if (initialized) Vcurrent_load_list = Fcons (x, Vcurrent_load_list); \
2853 extern int openp (Lisp_Object
, Lisp_Object
, Lisp_Object
,
2854 Lisp_Object
*, Lisp_Object
);
2855 Lisp_Object
string_to_number (char const *, int, int);
2856 extern void map_obarray (Lisp_Object
, void (*) (Lisp_Object
, Lisp_Object
),
2858 extern void dir_warning (const char *, Lisp_Object
);
2859 extern void close_load_descs (void);
2860 extern void init_obarray (void);
2861 extern void init_lread (void);
2862 extern void syms_of_lread (void);
2864 /* Defined in eval.c. */
2865 extern Lisp_Object Qautoload
, Qexit
, Qinteractive
, Qcommandp
, Qmacro
;
2866 extern Lisp_Object Qinhibit_quit
, Qclosure
;
2867 extern Lisp_Object Qand_rest
;
2868 extern Lisp_Object Vautoload_queue
;
2869 extern Lisp_Object Vsignaling_function
;
2870 extern Lisp_Object inhibit_lisp_code
;
2871 extern int handling_signal
;
2873 extern struct catchtag
*catchlist
;
2874 extern struct handler
*handlerlist
;
2876 /* To run a normal hook, use the appropriate function from the list below.
2877 The calling convention:
2879 if (!NILP (Vrun_hooks))
2880 call1 (Vrun_hooks, Qmy_funny_hook);
2882 should no longer be used. */
2883 extern Lisp_Object Vrun_hooks
;
2884 EXFUN (Frun_hooks
, MANY
);
2885 EXFUN (Frun_hook_with_args
, MANY
);
2886 EXFUN (Frun_hook_with_args_until_failure
, MANY
);
2887 extern void run_hook_with_args_2 (Lisp_Object
, Lisp_Object
, Lisp_Object
);
2888 extern Lisp_Object
run_hook_with_args (ptrdiff_t nargs
, Lisp_Object
*args
,
2889 Lisp_Object (*funcall
)
2890 (ptrdiff_t nargs
, Lisp_Object
*args
));
2891 EXFUN (Fprogn
, UNEVALLED
);
2892 EXFUN (Finteractive_p
, 0);
2893 EXFUN (Fthrow
, 2) NO_RETURN
;
2895 extern void xsignal (Lisp_Object
, Lisp_Object
) NO_RETURN
;
2896 extern void xsignal0 (Lisp_Object
) NO_RETURN
;
2897 extern void xsignal1 (Lisp_Object
, Lisp_Object
) NO_RETURN
;
2898 extern void xsignal2 (Lisp_Object
, Lisp_Object
, Lisp_Object
) NO_RETURN
;
2899 extern void xsignal3 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
) NO_RETURN
;
2900 extern void signal_error (const char *, Lisp_Object
) NO_RETURN
;
2901 EXFUN (Fcommandp
, 2);
2902 EXFUN (Ffunctionp
, 1);
2904 extern Lisp_Object
eval_sub (Lisp_Object form
);
2905 EXFUN (Fapply
, MANY
);
2906 EXFUN (Ffuncall
, MANY
);
2907 extern Lisp_Object
apply1 (Lisp_Object
, Lisp_Object
);
2908 extern Lisp_Object
call0 (Lisp_Object
);
2909 extern Lisp_Object
call1 (Lisp_Object
, Lisp_Object
);
2910 extern Lisp_Object
call2 (Lisp_Object
, Lisp_Object
, Lisp_Object
);
2911 extern Lisp_Object
call3 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
2912 extern Lisp_Object
call4 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
2913 extern Lisp_Object
call5 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
2914 extern Lisp_Object
call6 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
2915 extern Lisp_Object
call7 (Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object
);
2916 EXFUN (Fdo_auto_save
, 2);
2917 extern Lisp_Object
internal_catch (Lisp_Object
, Lisp_Object (*) (Lisp_Object
), Lisp_Object
);
2918 extern Lisp_Object
internal_lisp_condition_case (Lisp_Object
, Lisp_Object
, Lisp_Object
);
2919 extern Lisp_Object
internal_condition_case (Lisp_Object (*) (void), Lisp_Object
, Lisp_Object (*) (Lisp_Object
));
2920 extern Lisp_Object
internal_condition_case_1 (Lisp_Object (*) (Lisp_Object
), Lisp_Object
, Lisp_Object
, Lisp_Object (*) (Lisp_Object
));
2921 extern Lisp_Object
internal_condition_case_2 (Lisp_Object (*) (Lisp_Object
, Lisp_Object
), Lisp_Object
, Lisp_Object
, Lisp_Object
, Lisp_Object (*) (Lisp_Object
));
2922 extern Lisp_Object
internal_condition_case_n (Lisp_Object (*) (ptrdiff_t, Lisp_Object
*), ptrdiff_t, Lisp_Object
*, Lisp_Object
, Lisp_Object (*) (Lisp_Object
));
2923 extern void specbind (Lisp_Object
, Lisp_Object
);
2924 extern void record_unwind_protect (Lisp_Object (*) (Lisp_Object
), Lisp_Object
);
2925 extern Lisp_Object
unbind_to (ptrdiff_t, Lisp_Object
);
2926 extern void error (const char *, ...) NO_RETURN
ATTRIBUTE_FORMAT_PRINTF (1, 2);
2927 extern void verror (const char *, va_list)
2928 NO_RETURN
ATTRIBUTE_FORMAT_PRINTF (1, 0);
2929 extern void do_autoload (Lisp_Object
, Lisp_Object
);
2930 extern Lisp_Object
un_autoload (Lisp_Object
);
2931 extern void init_eval_once (void);
2932 extern Lisp_Object
safe_call (ptrdiff_t, Lisp_Object
*);
2933 extern Lisp_Object
safe_call1 (Lisp_Object
, Lisp_Object
);
2934 extern Lisp_Object
safe_call2 (Lisp_Object
, Lisp_Object
, Lisp_Object
);
2935 extern void init_eval (void);
2937 extern void mark_backtrace (void);
2939 extern void syms_of_eval (void);
2941 /* Defined in editfns.c */
2942 extern Lisp_Object Qfield
;
2943 EXFUN (Fcurrent_message
, 0);
2944 EXFUN (Fgoto_char
, 1);
2945 EXFUN (Fpoint_max_marker
, 0);
2947 EXFUN (Fpoint_marker
, 0);
2948 EXFUN (Fline_beginning_position
, 1);
2949 EXFUN (Fline_end_position
, 1);
2950 EXFUN (Ffollowing_char
, 0);
2951 EXFUN (Fprevious_char
, 0);
2952 EXFUN (Fchar_after
, 1);
2953 EXFUN (Finsert
, MANY
);
2954 EXFUN (Finsert_char
, 3);
2955 extern void insert1 (Lisp_Object
);
2960 EXFUN (Fformat
, MANY
);
2961 EXFUN (Fmessage
, MANY
);
2962 extern Lisp_Object
format2 (const char *, Lisp_Object
, Lisp_Object
);
2963 EXFUN (Fbuffer_substring
, 2);
2964 EXFUN (Fbuffer_string
, 0);
2965 extern Lisp_Object
save_excursion_save (void);
2966 extern Lisp_Object
save_restriction_save (void);
2967 extern Lisp_Object
save_excursion_restore (Lisp_Object
);
2968 extern Lisp_Object
save_restriction_restore (Lisp_Object
);
2969 EXFUN (Fchar_to_string
, 1);
2970 EXFUN (Fdelete_region
, 2);
2971 EXFUN (Fnarrow_to_region
, 2);
2973 EXFUN (Fuser_login_name
, 1);
2974 EXFUN (Fsystem_name
, 0);
2975 EXFUN (Fcurrent_time
, 0);
2976 EXFUN (Fget_internal_run_time
, 0);
2977 extern Lisp_Object
make_buffer_string (ptrdiff_t, ptrdiff_t, int);
2978 extern Lisp_Object
make_buffer_string_both (ptrdiff_t, ptrdiff_t, ptrdiff_t,
2980 extern void init_editfns (void);
2981 const char *get_system_name (void);
2982 extern void syms_of_editfns (void);
2983 EXFUN (Fconstrain_to_field
, 5);
2984 EXFUN (Ffield_end
, 3);
2985 extern void set_time_zone_rule (const char *);
2987 /* Defined in buffer.c */
2988 extern int mouse_face_overlay_overlaps (Lisp_Object
);
2989 extern void nsberror (Lisp_Object
) NO_RETURN
;
2990 EXFUN (Fset_buffer_multibyte
, 1);
2991 EXFUN (Foverlay_start
, 1);
2992 EXFUN (Foverlay_end
, 1);
2993 extern void adjust_overlays_for_insert (ptrdiff_t, ptrdiff_t);
2994 extern void adjust_overlays_for_delete (ptrdiff_t, ptrdiff_t);
2995 extern void fix_start_end_in_overlays (ptrdiff_t, ptrdiff_t);
2996 extern void report_overlay_modification (Lisp_Object
, Lisp_Object
, int,
2997 Lisp_Object
, Lisp_Object
, Lisp_Object
);
2998 extern int overlay_touches_p (ptrdiff_t);
2999 extern Lisp_Object Vbuffer_alist
;
3000 EXFUN (Fget_buffer
, 1);
3001 EXFUN (Fget_buffer_create
, 1);
3002 EXFUN (Fgenerate_new_buffer_name
, 2);
3003 EXFUN (Fset_buffer
, 1);
3004 extern Lisp_Object
set_buffer_if_live (Lisp_Object
);
3005 EXFUN (Fbarf_if_buffer_read_only
, 0);
3006 EXFUN (Fcurrent_buffer
, 0);
3007 EXFUN (Fother_buffer
, 3);
3008 extern Lisp_Object
other_buffer_safely (Lisp_Object
);
3009 EXFUN (Foverlay_get
, 2);
3010 EXFUN (Fbuffer_modified_p
, 1);
3011 EXFUN (Fset_buffer_modified_p
, 1);
3012 EXFUN (Fkill_buffer
, 1);
3013 EXFUN (Fkill_all_local_variables
, 0);
3014 EXFUN (Fbuffer_enable_undo
, 1);
3015 EXFUN (Ferase_buffer
, 0);
3016 extern Lisp_Object Qpriority
, Qwindow
, Qbefore_string
, Qafter_string
;
3017 extern Lisp_Object
get_truename_buffer (Lisp_Object
);
3018 extern struct buffer
*all_buffers
;
3019 EXFUN (Fprevious_overlay_change
, 1);
3020 EXFUN (Fbuffer_file_name
, 1);
3021 extern void init_buffer_once (void);
3022 extern void init_buffer (void);
3023 extern void syms_of_buffer (void);
3024 extern void keys_of_buffer (void);
3026 /* Defined in marker.c */
3028 EXFUN (Fmarker_position
, 1);
3029 EXFUN (Fmarker_buffer
, 1);
3030 EXFUN (Fcopy_marker
, 2);
3031 EXFUN (Fset_marker
, 3);
3032 extern ptrdiff_t marker_position (Lisp_Object
);
3033 extern ptrdiff_t marker_byte_position (Lisp_Object
);
3034 extern void clear_charpos_cache (struct buffer
*);
3035 extern ptrdiff_t charpos_to_bytepos (ptrdiff_t);
3036 extern ptrdiff_t buf_charpos_to_bytepos (struct buffer
*, ptrdiff_t);
3037 extern ptrdiff_t buf_bytepos_to_charpos (struct buffer
*, ptrdiff_t);
3038 extern void unchain_marker (struct Lisp_Marker
*marker
);
3039 extern Lisp_Object
set_marker_restricted (Lisp_Object
, Lisp_Object
, Lisp_Object
);
3040 extern Lisp_Object
set_marker_both (Lisp_Object
, Lisp_Object
, ptrdiff_t, ptrdiff_t);
3041 extern Lisp_Object
set_marker_restricted_both (Lisp_Object
, Lisp_Object
,
3042 ptrdiff_t, ptrdiff_t);
3043 extern void syms_of_marker (void);
3045 /* Defined in fileio.c */
3047 extern Lisp_Object Qfile_error
;
3048 extern Lisp_Object Qfile_exists_p
;
3049 extern Lisp_Object Qfile_directory_p
;
3050 extern Lisp_Object Qinsert_file_contents
;
3051 extern Lisp_Object Qfile_name_history
;
3052 EXFUN (Ffind_file_name_handler
, 2);
3053 EXFUN (Ffile_name_as_directory
, 1);
3054 EXFUN (Fexpand_file_name
, 2);
3055 EXFUN (Ffile_name_nondirectory
, 1);
3056 EXFUN (Fsubstitute_in_file_name
, 1);
3057 EXFUN (Ffile_symlink_p
, 1);
3058 EXFUN (Fverify_visited_file_modtime
, 1);
3059 EXFUN (Ffile_exists_p
, 1);
3060 EXFUN (Ffile_name_absolute_p
, 1);
3061 EXFUN (Fdirectory_file_name
, 1);
3062 EXFUN (Ffile_name_directory
, 1);
3063 extern Lisp_Object
expand_and_dir_to_file (Lisp_Object
, Lisp_Object
);
3064 EXFUN (Ffile_accessible_directory_p
, 1);
3065 EXFUN (Funhandled_file_name_directory
, 1);
3066 EXFUN (Ffile_directory_p
, 1);
3067 EXFUN (Fwrite_region
, 7);
3068 EXFUN (Ffile_readable_p
, 1);
3069 EXFUN (Fread_file_name
, 6);
3070 extern Lisp_Object
close_file_unwind (Lisp_Object
);
3071 extern Lisp_Object
restore_point_unwind (Lisp_Object
);
3072 extern void report_file_error (const char *, Lisp_Object
) NO_RETURN
;
3073 extern int internal_delete_file (Lisp_Object
);
3074 extern void syms_of_fileio (void);
3075 extern Lisp_Object
make_temp_name (Lisp_Object
, int);
3076 extern Lisp_Object Qdelete_file
;
3078 /* Defined in search.c */
3079 extern void shrink_regexp_cache (void);
3080 EXFUN (Fstring_match
, 3);
3081 extern void restore_search_regs (void);
3082 EXFUN (Fmatch_data
, 3);
3083 EXFUN (Fset_match_data
, 2);
3084 EXFUN (Fmatch_beginning
, 1);
3085 EXFUN (Fmatch_end
, 1);
3086 extern void record_unwind_save_match_data (void);
3087 struct re_registers
;
3088 extern struct re_pattern_buffer
*compile_pattern (Lisp_Object
,
3089 struct re_registers
*,
3090 Lisp_Object
, int, int);
3091 extern ptrdiff_t fast_string_match (Lisp_Object
, Lisp_Object
);
3092 extern ptrdiff_t fast_c_string_match_ignore_case (Lisp_Object
, const char *);
3093 extern ptrdiff_t fast_string_match_ignore_case (Lisp_Object
, Lisp_Object
);
3094 extern ptrdiff_t fast_looking_at (Lisp_Object
, ptrdiff_t, ptrdiff_t,
3095 ptrdiff_t, ptrdiff_t, Lisp_Object
);
3096 extern ptrdiff_t scan_buffer (int, ptrdiff_t, ptrdiff_t, ptrdiff_t,
3098 extern EMACS_INT
scan_newline (ptrdiff_t, ptrdiff_t, ptrdiff_t, ptrdiff_t,
3100 extern ptrdiff_t find_next_newline (ptrdiff_t, int);
3101 extern ptrdiff_t find_next_newline_no_quit (ptrdiff_t, ptrdiff_t);
3102 extern ptrdiff_t find_before_next_newline (ptrdiff_t, ptrdiff_t, ptrdiff_t);
3103 extern void syms_of_search (void);
3104 extern void clear_regexp_cache (void);
3106 /* Defined in minibuf.c */
3108 extern Lisp_Object Qcompletion_ignore_case
;
3109 extern Lisp_Object Vminibuffer_list
;
3110 extern Lisp_Object last_minibuf_string
;
3111 EXFUN (Fcompleting_read
, 8);
3112 EXFUN (Fread_from_minibuffer
, 7);
3113 EXFUN (Fread_variable
, 2);
3114 EXFUN (Fread_buffer
, 3);
3115 EXFUN (Fread_minibuffer
, 2);
3116 EXFUN (Feval_minibuffer
, 2);
3117 EXFUN (Fread_string
, 5);
3118 EXFUN (Fassoc_string
, 3);
3119 extern Lisp_Object
get_minibuffer (EMACS_INT
);
3120 extern void init_minibuf_once (void);
3121 extern void syms_of_minibuf (void);
3123 /* Defined in callint.c */
3125 extern Lisp_Object Qminus
, Qplus
;
3126 extern Lisp_Object Qwhen
;
3127 extern Lisp_Object Qcall_interactively
, Qmouse_leave_buffer_hook
;
3128 EXFUN (Fprefix_numeric_value
, 1);
3129 extern void syms_of_callint (void);
3131 /* Defined in casefiddle.c */
3133 extern Lisp_Object Qidentity
;
3134 EXFUN (Fdowncase
, 1);
3136 EXFUN (Fupcase_region
, 2);
3137 EXFUN (Fupcase_initials
, 1);
3138 EXFUN (Fupcase_initials_region
, 2);
3139 extern void syms_of_casefiddle (void);
3140 extern void keys_of_casefiddle (void);
3142 /* Defined in casetab.c */
3144 EXFUN (Fset_case_table
, 1);
3145 EXFUN (Fset_standard_case_table
, 1);
3146 extern void init_casetab_once (void);
3147 extern void syms_of_casetab (void);
3149 /* Defined in keyboard.c */
3151 extern Lisp_Object echo_message_buffer
;
3152 extern struct kboard
*echo_kboard
;
3153 extern void cancel_echoing (void);
3154 extern Lisp_Object Qdisabled
, QCfilter
;
3155 extern Lisp_Object Qup
, Qdown
, Qbottom
;
3156 extern Lisp_Object Qtop
;
3157 extern int input_pending
;
3158 EXFUN (Fdiscard_input
, 0);
3159 EXFUN (Frecursive_edit
, 0);
3160 EXFUN (Ftop_level
, 0) NO_RETURN
;
3161 extern Lisp_Object
menu_bar_items (Lisp_Object
);
3162 extern Lisp_Object
tool_bar_items (Lisp_Object
, int *);
3163 extern void discard_mouse_events (void);
3164 EXFUN (Fevent_convert_list
, 1);
3165 EXFUN (Fread_key_sequence
, 5);
3166 EXFUN (Fset_input_interrupt_mode
, 1);
3167 EXFUN (Fset_input_mode
, 4);
3168 extern Lisp_Object pending_funcalls
;
3169 extern int detect_input_pending (void);
3170 extern int detect_input_pending_ignore_squeezables (void);
3171 extern int detect_input_pending_run_timers (int);
3172 extern void safe_run_hooks (Lisp_Object
);
3173 extern void cmd_error_internal (Lisp_Object
, const char *);
3174 extern Lisp_Object
command_loop_1 (void);
3175 extern Lisp_Object
recursive_edit_1 (void);
3176 extern void record_auto_save (void);
3178 extern void force_auto_save_soon (void);
3180 extern void init_keyboard (void);
3181 extern void syms_of_keyboard (void);
3182 extern void keys_of_keyboard (void);
3184 /* Defined in indent.c */
3185 EXFUN (Fvertical_motion
, 2);
3186 EXFUN (Findent_to
, 2);
3187 EXFUN (Fmove_to_column
, 2);
3188 extern ptrdiff_t current_column (void);
3189 extern void invalidate_current_column (void);
3190 extern int indented_beyond_p (ptrdiff_t, ptrdiff_t, EMACS_INT
);
3191 extern void syms_of_indent (void);
3193 /* Defined in frame.c */
3194 #ifdef HAVE_WINDOW_SYSTEM
3195 #endif /* HAVE_WINDOW_SYSTEM */
3196 extern Lisp_Object Qonly
;
3197 extern Lisp_Object Qvisible
;
3198 extern void store_frame_param (struct frame
*, Lisp_Object
, Lisp_Object
);
3199 extern void store_in_alist (Lisp_Object
*, Lisp_Object
, Lisp_Object
);
3200 extern Lisp_Object
do_switch_frame (Lisp_Object
, int, int, Lisp_Object
);
3202 extern Lisp_Object
get_frame_param (struct frame
*, Lisp_Object
);
3204 extern Lisp_Object
frame_buffer_predicate (Lisp_Object
);
3205 EXFUN (Fselect_frame
, 2);
3206 EXFUN (Fselected_frame
, 0);
3207 EXFUN (Fmake_frame_visible
, 1);
3208 EXFUN (Ficonify_frame
, 1);
3209 EXFUN (Fframe_parameter
, 2);
3210 EXFUN (Fmodify_frame_parameters
, 2);
3211 EXFUN (Fraise_frame
, 1);
3212 EXFUN (Fredirect_frame_focus
, 2);
3213 extern void frames_discard_buffer (Lisp_Object
);
3214 extern void syms_of_frame (void);
3216 /* Defined in emacs.c */
3217 extern char **initial_argv
;
3218 extern int initial_argc
;
3219 #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS)
3220 extern int display_arg
;
3222 extern Lisp_Object
decode_env_path (const char *, const char *);
3223 extern Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
3224 extern Lisp_Object Qfile_name_handler_alist
;
3225 #ifdef FLOAT_CATCH_SIGILL
3226 extern void fatal_error_signal (int);
3228 extern Lisp_Object Qkill_emacs
;
3229 EXFUN (Fkill_emacs
, 1) NO_RETURN
;
3231 void fixup_locale (void);
3232 void synchronize_system_messages_locale (void);
3233 void synchronize_system_time_locale (void);
3235 #define setlocale(category, locale)
3236 #define fixup_locale()
3237 #define synchronize_system_messages_locale()
3238 #define synchronize_system_time_locale()
3240 void shut_down_emacs (int, int, Lisp_Object
);
3241 /* Nonzero means don't do interactive redisplay and don't change tty modes. */
3242 extern int noninteractive
;
3244 /* Nonzero means remove site-lisp directories from load-path. */
3245 extern int no_site_lisp
;
3247 /* Pipe used to send exit notification to the daemon parent at
3249 extern int daemon_pipe
[2];
3250 #define IS_DAEMON (daemon_pipe[1] != 0)
3252 /* Nonzero means don't do use window-system-specific display code. */
3253 extern int inhibit_window_system
;
3254 /* Nonzero means that a filter or a sentinel is running. */
3255 extern int running_asynch_code
;
3257 /* Defined in process.c. */
3258 extern Lisp_Object QCtype
, Qlocal
;
3259 EXFUN (Fget_buffer_process
, 1);
3260 EXFUN (Fprocess_status
, 1);
3261 EXFUN (Fkill_process
, 2);
3262 EXFUN (Fwaiting_for_user_input_p
, 0);
3263 extern Lisp_Object Qprocessp
;
3264 extern void kill_buffer_processes (Lisp_Object
);
3265 extern int wait_reading_process_output (int, int, int, int,
3267 struct Lisp_Process
*,
3269 extern void add_keyboard_wait_descriptor (int);
3270 extern void delete_keyboard_wait_descriptor (int);
3272 extern void add_gpm_wait_descriptor (int);
3273 extern void delete_gpm_wait_descriptor (int);
3275 extern void close_process_descs (void);
3276 extern void init_process (void);
3277 extern void syms_of_process (void);
3278 extern void setup_process_coding_systems (Lisp_Object
);
3280 EXFUN (Fcall_process
, MANY
);
3281 extern int child_setup (int, int, int, char **, int, Lisp_Object
)
3286 extern void init_callproc_1 (void);
3287 extern void init_callproc (void);
3288 extern void set_initial_environment (void);
3289 extern void syms_of_callproc (void);
3291 /* Defined in doc.c */
3292 extern Lisp_Object Qfunction_documentation
;
3293 EXFUN (Fsubstitute_command_keys
, 1);
3294 extern Lisp_Object
read_doc_string (Lisp_Object
);
3295 extern Lisp_Object
get_doc_string (Lisp_Object
, int, int);
3296 extern void syms_of_doc (void);
3297 extern int read_bytecode_char (int);
3299 /* Defined in bytecode.c */
3300 extern Lisp_Object Qbytecode
;
3301 extern void syms_of_bytecode (void);
3302 extern struct byte_stack
*byte_stack_list
;
3304 extern void mark_byte_stack (void);
3306 extern void unmark_byte_stack (void);
3307 extern Lisp_Object
exec_byte_code (Lisp_Object
, Lisp_Object
, Lisp_Object
,
3308 Lisp_Object
, ptrdiff_t, Lisp_Object
*);
3310 /* Defined in macros.c */
3311 extern Lisp_Object Qexecute_kbd_macro
;
3312 EXFUN (Fexecute_kbd_macro
, 3);
3313 EXFUN (Fcancel_kbd_macro_events
, 0);
3314 extern void init_macros (void);
3315 extern void syms_of_macros (void);
3317 /* Defined in undo.c */
3318 extern Lisp_Object Qapply
;
3319 extern Lisp_Object Qinhibit_read_only
;
3320 EXFUN (Fundo_boundary
, 0);
3321 extern void truncate_undo_list (struct buffer
*);
3322 extern void record_marker_adjustment (Lisp_Object
, ptrdiff_t);
3323 extern void record_insert (ptrdiff_t, ptrdiff_t);
3324 extern void record_delete (ptrdiff_t, Lisp_Object
);
3325 extern void record_first_change (void);
3326 extern void record_change (ptrdiff_t, ptrdiff_t);
3327 extern void record_property_change (ptrdiff_t, ptrdiff_t,
3328 Lisp_Object
, Lisp_Object
,
3330 extern void syms_of_undo (void);
3331 /* Defined in textprop.c */
3332 extern Lisp_Object Qfont
, Qmouse_face
;
3333 extern Lisp_Object Qinsert_in_front_hooks
, Qinsert_behind_hooks
;
3334 extern Lisp_Object Qfront_sticky
, Qrear_nonsticky
;
3335 extern Lisp_Object Qminibuffer_prompt
;
3337 EXFUN (Fnext_single_property_change
, 4);
3338 EXFUN (Fnext_single_char_property_change
, 4);
3339 EXFUN (Fprevious_single_property_change
, 4);
3340 EXFUN (Fget_text_property
, 3);
3341 EXFUN (Fput_text_property
, 5);
3342 EXFUN (Fprevious_char_property_change
, 2);
3343 EXFUN (Fnext_char_property_change
, 2);
3344 extern void report_interval_modification (Lisp_Object
, Lisp_Object
);
3346 /* Defined in menu.c */
3347 extern void syms_of_menu (void);
3349 /* Defined in xmenu.c */
3350 EXFUN (Fx_popup_menu
, 2);
3351 EXFUN (Fx_popup_dialog
, 3);
3352 extern void syms_of_xmenu (void);
3354 /* Defined in termchar.h */
3355 struct tty_display_info
;
3357 /* Defined in termhooks.h */
3360 /* Defined in sysdep.c */
3361 #ifndef HAVE_GET_CURRENT_DIR_NAME
3362 extern char *get_current_dir_name (void);
3364 extern void stuff_char (char c
);
3365 extern void init_sigio (int);
3366 extern void sys_subshell (void);
3367 extern void sys_suspend (void);
3368 extern void discard_tty_input (void);
3369 extern void init_sys_modes (struct tty_display_info
*);
3370 extern void reset_sys_modes (struct tty_display_info
*);
3371 extern void init_all_sys_modes (void);
3372 extern void reset_all_sys_modes (void);
3373 extern void wait_for_termination (pid_t
);
3374 extern void interruptible_wait_for_termination (pid_t
);
3375 extern void flush_pending_output (int);
3376 extern void child_setup_tty (int);
3377 extern void setup_pty (int);
3378 extern int set_window_size (int, int, int);
3379 extern EMACS_INT
get_random (void);
3380 extern void seed_random (long);
3381 extern int emacs_open (const char *, int, int);
3382 extern int emacs_close (int);
3383 extern ptrdiff_t emacs_read (int, char *, ptrdiff_t);
3384 extern ptrdiff_t emacs_write (int, const char *, ptrdiff_t);
3385 enum { READLINK_BUFSIZE
= 1024 };
3386 extern char *emacs_readlink (const char *, char [READLINK_BUFSIZE
]);
3388 EXFUN (Funlock_buffer
, 0);
3389 extern void unlock_all_files (void);
3390 extern void lock_file (Lisp_Object
);
3391 extern void unlock_file (Lisp_Object
);
3392 extern void unlock_buffer (struct buffer
*);
3393 extern void syms_of_filelock (void);
3394 extern void init_filelock (void);
3396 /* Defined in sound.c */
3397 extern void syms_of_sound (void);
3398 extern void init_sound (void);
3400 /* Defined in category.c */
3401 extern void init_category_once (void);
3402 extern Lisp_Object
char_category_set (int);
3403 extern void syms_of_category (void);
3405 /* Defined in ccl.c */
3406 extern void syms_of_ccl (void);
3408 /* Defined in dired.c */
3409 extern void syms_of_dired (void);
3410 extern Lisp_Object
directory_files_internal (Lisp_Object
, Lisp_Object
,
3411 Lisp_Object
, Lisp_Object
,
3414 /* Defined in term.c */
3415 extern int *char_ins_del_vector
;
3416 extern void mark_ttys (void);
3417 extern void syms_of_term (void);
3418 extern void fatal (const char *msgid
, ...)
3419 NO_RETURN
ATTRIBUTE_FORMAT_PRINTF (1, 2);
3421 /* Defined in terminal.c */
3422 EXFUN (Fframe_terminal
, 1);
3423 EXFUN (Fdelete_terminal
, 2);
3424 extern void syms_of_terminal (void);
3426 /* Defined in font.c */
3427 extern void syms_of_font (void);
3428 extern void init_font (void);
3430 #ifdef HAVE_WINDOW_SYSTEM
3431 /* Defined in fontset.c */
3432 extern void syms_of_fontset (void);
3434 /* Defined in xfns.c, w32fns.c, or macfns.c */
3435 extern Lisp_Object Qfont_param
;
3436 EXFUN (Fxw_display_color_p
, 1);
3437 EXFUN (Fx_focus_frame
, 1);
3440 /* Defined in xfaces.c */
3441 extern Lisp_Object Qdefault
, Qtool_bar
, Qfringe
;
3442 extern Lisp_Object Qheader_line
, Qscroll_bar
, Qcursor
;
3443 extern Lisp_Object Qmode_line_inactive
;
3444 extern Lisp_Object Qface
;
3445 extern Lisp_Object Qnormal
;
3446 extern Lisp_Object QCfamily
, QCweight
, QCslant
;
3447 extern Lisp_Object QCheight
, QCname
, QCwidth
, QCforeground
, QCbackground
;
3448 extern Lisp_Object Vface_alternative_font_family_alist
;
3449 extern Lisp_Object Vface_alternative_font_registry_alist
;
3450 EXFUN (Fclear_face_cache
, 1);
3451 EXFUN (Fx_load_color_file
, 1);
3452 extern void syms_of_xfaces (void);
3454 #ifdef HAVE_X_WINDOWS
3455 /* Defined in xfns.c */
3456 extern void syms_of_xfns (void);
3458 /* Defined in xsmfns.c */
3459 extern void syms_of_xsmfns (void);
3461 /* Defined in xselect.c */
3462 extern void syms_of_xselect (void);
3464 /* Defined in xterm.c */
3465 extern void syms_of_xterm (void);
3466 #endif /* HAVE_X_WINDOWS */
3468 #ifdef HAVE_WINDOW_SYSTEM
3469 /* Defined in xterm.c, nsterm.m, w32term.c */
3470 extern char *x_get_keysym_name (int);
3471 #endif /* HAVE_WINDOW_SYSTEM */
3474 /* Defined in msdos.c */
3475 EXFUN (Fmsdos_downcase_filename
, 1);
3479 /* Defined in xml.c */
3480 extern void syms_of_xml (void);
3481 extern void xml_cleanup_parser (void);
3485 /* Defined in (x|w32)fns.c, nsfns.m... */
3486 extern int have_menus_p (void);
3490 /* Defined in dbusbind.c */
3491 void syms_of_dbusbind (void);
3495 /* Defined in msdos.c, w32.c */
3496 extern char *emacs_root_dir (void);
3499 /* Nonzero means Emacs has already been initialized.
3500 Used during startup to detect startup of dumped Emacs. */
3501 extern int initialized
;
3503 extern int immediate_quit
; /* Nonzero means ^G can quit instantly */
3505 extern void *xmalloc (size_t);
3506 extern void *xrealloc (void *, size_t);
3507 extern void xfree (void *);
3508 extern void *xnmalloc (ptrdiff_t, ptrdiff_t);
3509 extern void *xnrealloc (void *, ptrdiff_t, ptrdiff_t);
3510 extern void *xpalloc (void *, ptrdiff_t *, ptrdiff_t, ptrdiff_t, ptrdiff_t);
3512 extern char *xstrdup (const char *);
3514 extern char *egetenv (const char *);
3516 /* Set up the name of the machine we're running on. */
3517 extern void init_system_name (void);
3519 /* Some systems (e.g., NT) use a different path separator than Unix,
3520 in addition to a device separator. Set the path separator
3521 to '/', and don't test for a device separator in IS_ANY_SEP. */
3523 #define DIRECTORY_SEP '/'
3524 #ifndef IS_DIRECTORY_SEP
3525 #define IS_DIRECTORY_SEP(_c_) ((_c_) == DIRECTORY_SEP)
3527 #ifndef IS_DEVICE_SEP
3529 #define IS_DEVICE_SEP(_c_) 0
3531 #define IS_DEVICE_SEP(_c_) ((_c_) == DEVICE_SEP)
3535 #define IS_ANY_SEP(_c_) (IS_DIRECTORY_SEP (_c_))
3538 #define SWITCH_ENUM_CAST(x) (x)
3540 /* Use this to suppress gcc's warnings. */
3543 /* Use CODE only if lint checking is in effect. */
3544 # define IF_LINT(Code) Code
3546 /* Assume that the expression COND is true. This differs in intent
3547 from 'assert', as it is a message from the programmer to the compiler. */
3548 # define lint_assume(cond) ((cond) ? (void) 0 : abort ())
3551 # define IF_LINT(Code) /* empty */
3552 # define lint_assume(cond) ((void) (0 && (cond)))
3555 /* The ubiquitous min and max macros. */
3561 #define min(a, b) ((a) < (b) ? (a) : (b))
3562 #define max(a, b) ((a) > (b) ? (a) : (b))
3564 /* We used to use `abs', but that clashes with system headers on some
3565 platforms, and using a name reserved by Standard C is a bad idea
3568 #define eabs(x) ((x) < 0 ? -(x) : (x))
3571 /* Return a fixnum or float, depending on whether VAL fits in a Lisp
3574 #define make_fixnum_or_float(val) \
3575 (FIXNUM_OVERFLOW_P (val) ? make_float (val) : make_number (val))
3578 /* Checks the `cycle check' variable CHECK to see if it indicates that
3579 EL is part of a cycle; CHECK must be either Qnil or a value returned
3580 by an earlier use of CYCLE_CHECK. SUSPICIOUS is the number of
3581 elements after which a cycle might be suspected; after that many
3582 elements, this macro begins consing in order to keep more precise
3585 Returns nil if a cycle was detected, otherwise a new value for CHECK
3588 CHECK is evaluated multiple times, EL and SUSPICIOUS 0 or 1 times, so
3589 the caller should make sure that's ok. */
3591 #define CYCLE_CHECK(check, el, suspicious) \
3594 : (INTEGERP (check) \
3595 ? (XFASTINT (check) < (suspicious) \
3596 ? make_number (XFASTINT (check) + 1) \
3597 : Fcons (el, Qnil)) \
3598 : (!NILP (Fmemq ((el), (check))) \
3600 : Fcons ((el), (check)))))
3603 /* SAFE_ALLOCA normally allocates memory on the stack, but if size is
3604 larger than MAX_ALLOCA, use xmalloc to avoid overflowing the stack. */
3606 #define MAX_ALLOCA 16*1024
3608 extern Lisp_Object
safe_alloca_unwind (Lisp_Object
);
3610 #define USE_SAFE_ALLOCA \
3611 ptrdiff_t sa_count = SPECPDL_INDEX (); int sa_must_free = 0
3613 /* SAFE_ALLOCA allocates a simple buffer. */
3615 #define SAFE_ALLOCA(buf, type, size) \
3617 if ((size) < MAX_ALLOCA) \
3618 buf = (type) alloca (size); \
3621 buf = (type) xmalloc (size); \
3623 record_unwind_protect (safe_alloca_unwind, \
3624 make_save_value (buf, 0)); \
3628 /* SAFE_NALLOCA sets BUF to a newly allocated array of MULTIPLIER *
3629 NITEMS items, each of the same type as *BUF. MULTIPLIER must
3630 positive. The code is tuned for MULTIPLIER being a constant. */
3632 #define SAFE_NALLOCA(buf, multiplier, nitems) \
3634 if ((nitems) <= MAX_ALLOCA / sizeof *(buf) / (multiplier)) \
3635 (buf) = alloca (sizeof *(buf) * (multiplier) * (nitems)); \
3638 (buf) = xnmalloc (nitems, sizeof *(buf) * (multiplier)); \
3640 record_unwind_protect (safe_alloca_unwind, \
3641 make_save_value (buf, 0)); \
3645 /* SAFE_FREE frees xmalloced memory and enables GC as needed. */
3647 #define SAFE_FREE() \
3649 if (sa_must_free) { \
3651 unbind_to (sa_count, Qnil); \
3656 /* SAFE_ALLOCA_LISP allocates an array of Lisp_Objects. */
3658 #define SAFE_ALLOCA_LISP(buf, nelt) \
3660 if ((nelt) < MAX_ALLOCA / sizeof (Lisp_Object)) \
3661 buf = (Lisp_Object *) alloca ((nelt) * sizeof (Lisp_Object)); \
3662 else if ((nelt) < min (PTRDIFF_MAX, SIZE_MAX) / sizeof (Lisp_Object)) \
3665 buf = (Lisp_Object *) xmalloc ((nelt) * sizeof (Lisp_Object)); \
3666 arg_ = make_save_value (buf, nelt); \
3667 XSAVE_VALUE (arg_)->dogc = 1; \
3669 record_unwind_protect (safe_alloca_unwind, arg_); \
3672 memory_full (SIZE_MAX); \
3676 #include "globals.h"
3678 #endif /* EMACS_LISP_H */