1 /* Fundamental definitions for GNU Emacs Lisp interpreter.
2 Copyright (C) 1985,86,87,93,94,95 Free Software Foundation, Inc.
4 This file is part of GNU Emacs.
6 GNU Emacs is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU Emacs is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU Emacs; see the file COPYING. If not, write to
18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
22 /* These are default choices for the types to use. */
25 #define BITS_PER_EMACS_INT BITS_PER_INT
28 #define EMACS_UINT unsigned int
31 /* Define the fundamental Lisp data structures. */
33 /* This is the set of Lisp data types. */
37 /* Integer. XINT (obj) is the integer value. */
40 /* Symbol. XSYMBOL (object) points to a struct Lisp_Symbol. */
43 /* Miscellaneous. XMISC (object) points to a union Lisp_Misc,
44 whose first member indicates the subtype. */
47 /* String. XSTRING (object) points to a struct Lisp_String.
48 The length of the string, and its contents, are stored therein. */
51 /* Vector of Lisp objects, or something resembling it.
52 XVECTOR (object) points to a struct Lisp_Vector, which contains
53 the size and contents. The size field also contains the type
54 information, if it's not a real vector object. */
57 /* Cons. XCONS (object) points to a struct Lisp_Cons. */
60 #ifdef LISP_FLOAT_TYPE
62 #endif /* LISP_FLOAT_TYPE */
64 /* This is not a type code. It is for range checking. */
68 /* This is the set of datatypes that share a common structure.
69 The first member of the structure is a type code from this set.
70 The enum values are arbitrary, but we'll use large numbers to make it
71 more likely that we'll spot the error if a random word in memory is
72 mistakenly interpreted as a Lisp_Misc. */
75 Lisp_Misc_Free
= 0x5eab,
80 Lisp_Misc_Buffer_Objfwd
,
81 Lisp_Misc_Buffer_Local_Value
,
82 Lisp_Misc_Some_Buffer_Local_Value
,
84 Lisp_Misc_Kboard_Objfwd
,
85 /* Currently floats are not a misc type,
86 but let's define this in case we want to change that. */
88 /* This is not a type code. It is for range checking. */
92 /* These values are overridden by the m- file on some machines. */
101 /* Make these values available in GDB, which sees enums but not macros. */
105 gdb_valbits
= VALBITS
,
106 gdb_gctypebits
= GCTYPEBITS
,
107 gdb_emacs_intbits
= sizeof (EMACS_INT
) * BITS_PER_CHAR
,
109 gdb_data_seg_bits
= DATA_SEG_BITS
111 gdb_data_seg_bits
= 0
115 #ifndef NO_UNION_TYPE
117 #ifndef WORDS_BIG_ENDIAN
119 /* Definition of Lisp_Object for little-endian machines. */
124 /* Used for comparing two Lisp_Objects;
125 also, positive integers can be accessed fast this way. */
131 int type
: GCTYPEBITS
+1;
135 unsigned int val
: VALBITS
;
136 int type
: GCTYPEBITS
+1;
140 unsigned int val
: VALBITS
;
141 enum Lisp_Type type
: GCTYPEBITS
;
142 /* The markbit is not really part of the value of a Lisp_Object,
143 and is always zero except during garbage collection. */
144 unsigned int markbit
: 1;
149 #else /* If WORDS_BIG_ENDIAN */
154 /* Used for comparing two Lisp_Objects;
155 also, positive integers can be accessed fast this way. */
160 int type
: GCTYPEBITS
+1;
165 int type
: GCTYPEBITS
+1;
166 unsigned int val
: VALBITS
;
170 /* The markbit is not really part of the value of a Lisp_Object,
171 and is always zero except during garbage collection. */
172 unsigned int markbit
: 1;
173 enum Lisp_Type type
: GCTYPEBITS
;
174 unsigned int val
: VALBITS
;
179 #endif /* WORDS_BIG_ENDIAN */
181 #endif /* NO_UNION_TYPE */
184 /* If union type is not wanted, define Lisp_Object as just a number
185 and define the macros below to extract fields by shifting */
189 #define Lisp_Object EMACS_INT
192 #define VALMASK ((((EMACS_INT) 1)<<VALBITS) - 1)
194 #define GCTYPEMASK ((((EMACS_INT) 1)<<GCTYPEBITS) - 1)
196 /* Two flags that are set during GC. On some machines, these flags
197 are defined differently by the m- file. */
199 /* This is set in the car of a cons and in the plist slot of a symbol
200 to indicate it is marked. Likewise in the plist slot of an interval,
201 the chain slot of a marker, the type slot of a float, and the name
204 In strings, this bit in the size field indicates that the string
205 is a "large" one, one which was separately malloc'd
206 rather than being part of a string block. */
209 #define MARKBIT ((int) ((unsigned int) 1 << (VALBITS + GCTYPEBITS)))
212 /* In the size word of a vector, this bit means the vector has been marked.
213 In the size word of a large string, likewise. */
215 #ifndef ARRAY_MARK_FLAG
216 #define ARRAY_MARK_FLAG ((MARKBIT >> 1) & ~MARKBIT)
217 #endif /* no ARRAY_MARK_FLAG */
219 /* In the size word of a struct Lisp_Vector, this bit means it's really
220 some other vector-like object. */
221 #ifndef PSEUDOVECTOR_FLAG
222 #define PSEUDOVECTOR_FLAG ((ARRAY_MARK_FLAG >> 1) & ~ARRAY_MARK_FLAG)
225 /* In a pseudovector, the size field actually contains a word with one
226 PSEUDOVECTOR_FLAG bit set, and exactly one of the following bits to
227 indicate the actual type. */
230 PVEC_NORMAL_VECTOR
= 0,
231 PVEC_PROCESS
= 0x200,
233 PVEC_COMPILED
= 0x800,
234 PVEC_WINDOW
= 0x1000,
235 PVEC_WINDOW_CONFIGURATION
= 0x2000,
237 PVEC_CHAR_TABLE
= 0x8000,
238 PVEC_BOOL_VECTOR
= 0x10000,
239 PVEC_BUFFER
= 0x20000,
240 PVEC_TYPE_MASK
= 0x3fe00,
241 PVEC_FLAG
= PSEUDOVECTOR_FLAG
244 /* For convenience, we also store the number of elements in these bits. */
245 #define PSEUDOVECTOR_SIZE_MASK 0x1ff
247 #endif /* NO_UNION_TYPE */
249 /* These macros extract various sorts of values from a Lisp_Object.
250 For example, if tem is a Lisp_Object whose type is Lisp_Cons,
251 XCONS (tem) is the struct Lisp_Cons * pointing to the memory for that cons. */
255 /* One need to override this if there must be high bits set in data space
256 (doing the result of the below & ((1 << (GCTYPE + 1)) - 1) would work
257 on all machines, but would penalise machines which don't need it)
260 #define XTYPE(a) ((enum Lisp_Type) ((a) >> VALBITS))
264 #define XSETTYPE(a, b) ((a) = XUINT (a) | ((EMACS_INT)(b) << VALBITS))
267 /* For integers known to be positive, XFASTINT provides fast retrieval
268 and XSETFASTINT provides fast storage. This takes advantage of the
269 fact that Lisp_Int is 0. */
270 #define XFASTINT(a) ((a) + 0)
271 #define XSETFASTINT(a, b) ((a) = (b))
273 /* Extract the value of a Lisp_Object as a signed integer. */
275 #ifndef XINT /* Some machines need to do this differently. */
276 #define XINT(a) (((a) << (BITS_PER_INT-VALBITS)) >> (BITS_PER_INT-VALBITS))
279 /* Extract the value as an unsigned integer. This is a basis
280 for extracting it as a pointer to a structure in storage. */
283 #define XUINT(a) ((a) & VALMASK)
288 /* In this representation, data is found in two widely separated segments. */
289 extern int pure_size
;
291 (XUINT (a) | (XUINT (a) > pure_size ? DATA_SEG_BITS : PURE_SEG_BITS))
292 #else /* not HAVE_SHM */
294 /* This case is used for the rt-pc.
295 In the diffs I was given, it checked for ptr = 0
296 and did not adjust it in that case.
297 But I don't think that zero should ever be found
298 in a Lisp object whose data type says it points to something. */
299 #define XPNTR(a) (XUINT (a) | DATA_SEG_BITS)
301 #define XPNTR(a) XUINT (a)
303 #endif /* not HAVE_SHM */
304 #endif /* no XPNTR */
307 #define XSET(var, type, ptr) \
308 ((var) = ((EMACS_INT)(type) << VALBITS) + ((EMACS_INT) (ptr) & VALMASK))
311 /* Convert a C integer into a Lisp_Object integer. */
313 #define make_number(N) \
314 ((((EMACS_INT) (N)) & VALMASK) | ((EMACS_INT) Lisp_Int) << VALBITS)
316 /* During garbage collection, XGCTYPE must be used for extracting types
317 so that the mark bit is ignored. XMARKBIT accesses the markbit.
318 Markbits are used only in particular slots of particular structure types.
319 Other markbits are always zero.
320 Outside of garbage collection, all mark bits are always zero. */
323 #define XGCTYPE(a) ((enum Lisp_Type) (((a) >> VALBITS) & GCTYPEMASK))
326 #if VALBITS + GCTYPEBITS == BITS_PER_EMACS_INT - 1
327 /* Make XMARKBIT faster if mark bit is sign bit. */
329 #define XMARKBIT(a) ((a) < 0)
331 #endif /* markbit is sign bit */
334 #define XMARKBIT(a) ((a) & MARKBIT)
338 #define XSETMARKBIT(a,b) ((a) = ((a) & ~MARKBIT) | ((b) ? MARKBIT : 0))
342 #define XMARK(a) ((a) |= MARKBIT)
346 #define XUNMARK(a) ((a) &= ~MARKBIT)
349 #endif /* NO_UNION_TYPE */
351 #ifndef NO_UNION_TYPE
353 #define XTYPE(a) ((enum Lisp_Type) (a).u.type)
354 #define XSETTYPE(a, b) ((a).u.type = (char) (b))
356 /* For integers known to be positive, XFASTINT provides fast retrieval
357 and XSETFASTINT provides fast storage. This takes advantage of the
358 fact that Lisp_Int is 0. */
359 #define XFASTINT(a) ((a).i + 0)
360 #define XSETFASTINT(a, b) ((a).i = (b))
362 #ifdef EXPLICIT_SIGN_EXTEND
363 /* Make sure we sign-extend; compilers have been known to fail to do so. */
364 #define XINT(a) (((a).i << (BITS_PER_INT-VALBITS)) >> (BITS_PER_INT-VALBITS))
366 #define XINT(a) ((a).s.val)
367 #endif /* EXPLICIT_SIGN_EXTEND */
369 #define XUINT(a) ((a).u.val)
370 #define XPNTR(a) ((a).u.val)
372 #define XSET(var, vartype, ptr) \
373 (((var).s.type = ((char) (vartype))), ((var).s.val = ((int) (ptr))))
375 /* During garbage collection, XGCTYPE must be used for extracting types
376 so that the mark bit is ignored. XMARKBIT access the markbit.
377 Markbits are used only in particular slots of particular structure types.
378 Other markbits are always zero.
379 Outside of garbage collection, all mark bits are always zero. */
381 #define XGCTYPE(a) ((a).gu.type)
382 #define XMARKBIT(a) ((a).gu.markbit)
383 #define XSETMARKBIT(a,b) (XMARKBIT(a) = (b))
384 #define XMARK(a) (XMARKBIT(a) = 1)
385 #define XUNMARK(a) (XMARKBIT(a) = 0)
387 #endif /* NO_UNION_TYPE */
389 /* Extract a value or address from a Lisp_Object. */
391 #define XCONS(a) ((struct Lisp_Cons *) XPNTR(a))
392 #define XVECTOR(a) ((struct Lisp_Vector *) XPNTR(a))
393 #define XSTRING(a) ((struct Lisp_String *) XPNTR(a))
394 #define XSYMBOL(a) ((struct Lisp_Symbol *) XPNTR(a))
395 #define XFLOAT(a) ((struct Lisp_Float *) XPNTR(a))
398 #define XMISC(a) ((union Lisp_Misc *) XPNTR(a))
399 #define XMISCTYPE(a) (XMARKER (a)->type)
400 #define XMARKER(a) (&(XMISC(a)->u_marker))
401 #define XINTFWD(a) (&(XMISC(a)->u_intfwd))
402 #define XBOOLFWD(a) (&(XMISC(a)->u_boolfwd))
403 #define XOBJFWD(a) (&(XMISC(a)->u_objfwd))
404 #define XBUFFER_OBJFWD(a) (&(XMISC(a)->u_buffer_objfwd))
405 #define XBUFFER_LOCAL_VALUE(a) (&(XMISC(a)->u_buffer_local_value))
406 #define XOVERLAY(a) (&(XMISC(a)->u_overlay))
407 #define XKBOARD_OBJFWD(a) (&(XMISC(a)->u_kboard_objfwd))
409 /* Pseudovector types. */
410 #define XPROCESS(a) ((struct Lisp_Process *) XPNTR(a))
411 #define XWINDOW(a) ((struct window *) XPNTR(a))
412 #define XSUBR(a) ((struct Lisp_Subr *) XPNTR(a))
413 #define XBUFFER(a) ((struct buffer *) XPNTR(a))
414 #define XCHAR_TABLE(a) ((struct Lisp_Char_Table *) XPNTR(a))
415 #define XBOOL_VECTOR(a) ((struct Lisp_Bool_Vector *) XPNTR(a))
418 /* Construct a Lisp_Object from a value or address. */
420 #define XSETINT(a, b) XSET (a, Lisp_Int, b)
421 #define XSETCONS(a, b) XSET (a, Lisp_Cons, b)
422 #define XSETVECTOR(a, b) XSET (a, Lisp_Vectorlike, b)
423 #define XSETSTRING(a, b) XSET (a, Lisp_String, b)
424 #define XSETSYMBOL(a, b) XSET (a, Lisp_Symbol, b)
425 #define XSETFLOAT(a, b) XSET (a, Lisp_Float, b)
428 #define XSETMISC(a, b) XSET (a, Lisp_Misc, b)
429 #define XSETMARKER(a, b) (XSETMISC (a, b), XMISCTYPE (a) = Lisp_Misc_Marker)
431 /* Pseudovector types. */
432 #define XSETPSEUDOVECTOR(a, b, code) \
433 (XSETVECTOR (a, b), XVECTOR (a)->size |= PSEUDOVECTOR_FLAG | (code))
434 #define XSETWINDOW_CONFIGURATION(a, b) \
435 (XSETPSEUDOVECTOR (a, b, PVEC_WINDOW_CONFIGURATION))
436 #define XSETPROCESS(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_PROCESS))
437 #define XSETWINDOW(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_WINDOW))
438 #define XSETSUBR(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_SUBR))
439 #define XSETCOMPILED(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_COMPILED))
440 #define XSETBUFFER(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_BUFFER))
441 #define XSETCHAR_TABLE(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_CHAR_TABLE))
442 #define XSETBOOL_VECTOR(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_BOOL_VECTOR))
444 #ifdef USE_TEXT_PROPERTIES
445 /* Basic data type for use of intervals. See the macros in intervals.h. */
449 /* The first group of entries deal with the tree structure. */
451 unsigned int total_length
; /* Length of myself and both children. */
452 unsigned int position
; /* Cache of interval's character position. */
453 struct interval
*left
; /* Intervals which precede me. */
454 struct interval
*right
; /* Intervals which succeed me. */
456 /* Parent in the tree, or the Lisp_Object containing this interval tree.
458 The mark bit on the root interval of an interval tree says
459 whether we have started (and possibly finished) marking the
460 tree. If GC comes across an interval tree whose root's parent
461 field has its markbit set, it leaves the tree alone.
463 You'd think we could store this information in the parent object
464 somewhere (after all, that should be visited once and then
465 ignored too, right?), but strings are GC'd strangely. */
466 struct interval
*parent
;
468 /* The remaining components are `properties' of the interval.
469 The first four are duplicates for things which can be on the list,
470 for purposes of speed. */
472 unsigned char write_protect
; /* Non-zero means can't modify. */
473 unsigned char visible
; /* Zero means don't display. */
474 unsigned char front_sticky
; /* Non-zero means text inserted just
475 before this interval goes into it. */
476 unsigned char rear_sticky
; /* Likewise for just after it. */
478 /* Properties of this interval.
479 The mark bit on this field says whether this particular interval
480 tree node has been visited. Since intervals should never be
481 shared, GC aborts if it seems to have visited an interval twice. */
485 typedef struct interval
*INTERVAL
;
487 /* Complain if object is not string or buffer type */
488 #define CHECK_STRING_OR_BUFFER(x, i) \
489 { if (!STRINGP ((x)) && !BUFFERP ((x))) \
490 x = wrong_type_argument (Qbuffer_or_string_p, (x)); }
492 /* Macro used to conditionally compile intervals into certain data
493 structures. See, e.g., struct Lisp_String below. */
494 #define DECLARE_INTERVALS INTERVAL intervals;
496 /* Macro used to conditionally compile interval initialization into
497 certain code. See, e.g., alloc.c. */
498 #define INITIALIZE_INTERVAL(ptr,val) ptr->intervals = val
500 #else /* No text properties */
502 /* If no intervals are used, make the above definitions go away. */
504 #define CHECK_STRING_OR_BUFFER(x, i)
507 #define DECLARE_INTERVALS
508 #define INITIALIZE_INTERVAL(ptr,val)
510 #endif /* USE_TEXT_PROPERTIES */
512 /* In a cons, the markbit of the car is the gc mark bit */
516 Lisp_Object car
, cdr
;
519 /* Take the car or cdr of something known to be a cons cell. */
520 #define XCAR(c) (XCONS ((c))->car)
521 #define XCDR(c) (XCONS ((c))->cdr)
523 /* Take the car or cdr of something whose type is not known. */
525 (CONSP ((c)) ? XCAR ((c)) \
526 : NILP ((c)) ? Qnil \
527 : wrong_type_argument (Qlistp, (c)))
530 (CONSP ((c)) ? XCDR ((c)) \
531 : NILP ((c)) ? Qnil \
532 : wrong_type_argument (Qlistp, (c)))
534 /* Like a cons, but records info on where the text lives that it was read from */
535 /* This is not really in use now */
537 struct Lisp_Buffer_Cons
539 Lisp_Object car
, cdr
;
540 struct buffer
*buffer
;
544 /* In a string or vector, the sign bit of the `size' is the gc mark bit */
549 DECLARE_INTERVALS
/* `data' field must be last. */
550 unsigned char data
[1];
553 /* If a struct is made to look like a vector, this macro returns the length
554 of the shortest vector that would hold that struct. */
555 #define VECSIZE(type) ((sizeof (type) - (sizeof (struct Lisp_Vector) \
556 - sizeof (Lisp_Object)) \
557 + sizeof(Lisp_Object) - 1) /* round up */ \
558 / sizeof (Lisp_Object))
563 struct Lisp_Vector
*next
;
564 Lisp_Object contents
[1];
567 /* A char table is a kind of vectorlike, with contents are like a vector
568 but with a few other slots. For some purposes, it makes sense
569 to handle a chartable with type struct Lisp_Vector. */
571 /* This is the number of slots that apply to characters
572 or character sets. */
573 #define CHAR_TABLE_ORDINARY_SLOTS 256
575 /* This is the number of slots that every char table must have.
576 This counts the ordinary slots and the parent and defalt slots. */
577 #define CHAR_TABLE_STANDARD_SLOTS (256+3)
579 /* Return the number of "extra" slots in the char table CT. */
581 #define CHAR_TABLE_EXTRA_SLOTS(CT) \
582 (((CT)->size & PSEUDOVECTOR_SIZE_MASK) - CHAR_TABLE_STANDARD_SLOTS)
584 struct Lisp_Char_Table
586 /* This is the vector's size field, which also holds the
587 pseudovector type information. It holds the size, too.
588 The size counts the defalt and parent slots. */
590 struct Lisp_Vector
*next
;
591 Lisp_Object contents
[CHAR_TABLE_ORDINARY_SLOTS
];
592 /* This holds a default value,
593 which is used whenever the value for a specific character is nil. */
595 /* This points to another char table, which we inherit from
596 when the value for a specific character is nil.
597 The `defalt' slot takes precedence over this. */
599 /* This should be a symbol which says what kind of use
600 this char-table is meant for.
601 Typically now the values can be `syntax-table' and `display-table'. */
603 /* These hold additional data. */
604 Lisp_Object extras
[1];
607 /* A boolvector is a kind of vectorlike, with contents are like a string. */
608 struct Lisp_Bool_Vector
610 /* This is the vector's size field. It doesn't have the real size,
611 just the subtype information. */
612 EMACS_INT vector_size
;
613 struct Lisp_Vector
*next
;
614 /* This is the size in bits. */
616 /* This contains the actual bits, packed into bytes. */
617 unsigned char data
[1];
620 /* In a symbol, the markbit of the plist is used as the gc mark bit */
624 struct Lisp_String
*name
;
626 Lisp_Object function
;
628 struct Lisp_Symbol
*next
; /* -> next symbol in this obarray bucket */
631 /* This structure describes a built-in function.
632 It is generated by the DEFUN macro only.
633 defsubr makes it into a Lisp object.
635 This type is treated in most respects as a pseudovector,
636 but since we never dynamically allocate or free them,
637 we don't need a next-vector field. */
642 Lisp_Object (*function
) ();
643 short min_args
, max_args
;
649 /* These structures are used for various misc types. */
651 /* A miscellaneous object, when it's on the free list. */
654 int type
: 16; /* = Lisp_Misc_Free */
656 union Lisp_Misc
*chain
;
659 /* In a marker, the markbit of the chain field is used as the gc mark bit */
662 int type
: 16; /* = Lisp_Misc_Marker */
664 /* 1 means normal insertion at the marker's position
665 leaves the marker after the inserted text. */
666 unsigned int insertion_type
: 1;
667 struct buffer
*buffer
;
672 /* Forwarding pointer to an int variable.
673 This is allowed only in the value cell of a symbol,
674 and it means that the symbol's value really lives in the
675 specified int variable. */
678 int type
: 16; /* = Lisp_Misc_Intfwd */
683 /* Boolean forwarding pointer to an int variable.
684 This is like Lisp_Intfwd except that the ostensible
685 "value" of the symbol is t if the int variable is nonzero,
686 nil if it is zero. */
689 int type
: 16; /* = Lisp_Misc_Boolfwd */
694 /* Forwarding pointer to a Lisp_Object variable.
695 This is allowed only in the value cell of a symbol,
696 and it means that the symbol's value really lives in the
697 specified variable. */
700 int type
: 16; /* = Lisp_Misc_Objfwd */
705 /* Like Lisp_Objfwd except that value lives in a slot in the
706 current buffer. Value is byte index of slot within buffer. */
707 struct Lisp_Buffer_Objfwd
709 int type
: 16; /* = Lisp_Misc_Buffer_Objfwd */
714 /* Used in a symbol value cell when the symbol's value is per-buffer.
715 The actual contents resemble a cons cell which starts a list like this:
716 (REALVALUE BUFFER CURRENT-ALIST-ELEMENT . DEFAULT-VALUE).
718 The cons-like structure is for historical reasons; it might be better
719 to just put these elements into the struct, now.
721 BUFFER is the last buffer for which this symbol's value was
724 CURRENT-ALIST-ELEMENT is a pointer to an element of BUFFER's
725 local_var_alist, that being the element whose car is this
726 variable. Or it can be a pointer to the
727 (CURRENT-ALIST-ELEMENT . DEFAULT-VALUE),
728 if BUFFER does not have an element in its alist for this
729 variable (that is, if BUFFER sees the default value of this
732 If we want to examine or set the value and BUFFER is current,
733 we just examine or set REALVALUE. If BUFFER is not current, we
734 store the current REALVALUE value into CURRENT-ALIST-ELEMENT,
735 then find the appropriate alist element for the buffer now
736 current and set up CURRENT-ALIST-ELEMENT. Then we set
737 REALVALUE out of that element, and store into BUFFER.
739 If we are setting the variable and the current buffer does not
740 have an alist entry for this variable, an alist entry is
743 Note that REALVALUE can be a forwarding pointer. Each time it
744 is examined or set, forwarding must be done. Each time we
745 switch buffers, buffer-local variables which forward into C
746 variables are swapped immediately, so the C code can assume
747 that they are always up to date.
749 Lisp_Misc_Buffer_Local_Value and Lisp_Misc_Some_Buffer_Local_Value
750 use the same substructure. The difference is that with the latter,
751 merely setting the variable while some buffer is current
752 does not cause that buffer to have its own local value of this variable.
753 Only make-local-variable does that. */
754 struct Lisp_Buffer_Local_Value
756 int type
: 16; /* = Lisp_Misc_Buffer_Local_Value
757 or Lisp_Misc_Some_Buffer_Local_Value */
759 Lisp_Object car
, cdr
;
762 /* In an overlay object, the mark bit of the plist is used as the GC mark.
763 START and END are markers in the overlay's buffer, and
764 PLIST is the overlay's property list. */
767 int type
: 16; /* = Lisp_Misc_Overlay */
769 Lisp_Object start
, end
, plist
;
772 /* Like Lisp_Objfwd except that value lives in a slot in the
774 struct Lisp_Kboard_Objfwd
776 int type
: 16; /* = Lisp_Misc_Kboard_Objfwd */
782 /* To get the type field of a union Lisp_Misc, use XMISCTYPE.
783 It uses one of these struct subtypes to get the type field. */
787 struct Lisp_Free u_free
;
788 struct Lisp_Marker u_marker
;
789 struct Lisp_Intfwd u_intfwd
;
790 struct Lisp_Boolfwd u_boolfwd
;
791 struct Lisp_Objfwd u_objfwd
;
792 struct Lisp_Buffer_Objfwd u_buffer_objfwd
;
793 struct Lisp_Buffer_Local_Value u_buffer_local_value
;
794 struct Lisp_Overlay u_overlay
;
795 struct Lisp_Kboard_Objfwd u_kboard_objfwd
;
798 #ifdef LISP_FLOAT_TYPE
799 /* Optional Lisp floating point type */
802 Lisp_Object type
; /* essentially used for mark-bit
803 and chaining when on free-list */
806 #endif /* LISP_FLOAT_TYPE */
808 /* A character, declared with the following typedef, is a member
809 of some character set associated with the current buffer. */
810 #ifndef _UCHAR_T /* Protect against something in ctab.h on AIX. */
812 typedef unsigned char UCHAR
;
815 /* Meanings of slots in a Lisp_Compiled: */
817 #define COMPILED_ARGLIST 0
818 #define COMPILED_BYTECODE 1
819 #define COMPILED_CONSTANTS 2
820 #define COMPILED_STACK_DEPTH 3
821 #define COMPILED_DOC_STRING 4
822 #define COMPILED_INTERACTIVE 5
824 /* Flag bits in a character. These also get used in termhooks.h.
825 Richard Stallman <rms@gnu.ai.mit.edu> thinks that MULE
826 (MUlti-Lingual Emacs) might need 22 bits for the character value
827 itself, so we probably shouldn't use any bits lower than 0x0400000. */
828 #define CHAR_ALT (0x0400000)
829 #define CHAR_SUPER (0x0800000)
830 #define CHAR_HYPER (0x1000000)
831 #define CHAR_SHIFT (0x2000000)
832 #define CHAR_CTL (0x4000000)
833 #define CHAR_META (0x8000000)
837 /* Use this for turning a (void *) into a Lisp_Object, as when the
838 Lisp_Object is passed into a toolkit callback function. */
839 #define VOID_TO_LISP(larg,varg) \
840 do { ((larg) = ((Lisp_Object) (varg))); } while (0)
841 #define CVOID_TO_LISP VOID_TO_LISP
843 /* Use this for turning a Lisp_Object into a (void *), as when the
844 Lisp_Object is passed into a toolkit callback function. */
845 #define LISP_TO_VOID(larg) ((void *) (larg))
846 #define LISP_TO_CVOID(varg) ((const void *) (larg))
848 #else /* not NO_UNION_TYPE */
849 /* Use this for turning a (void *) into a Lisp_Object, as when the
850 Lisp_Object is passed into a toolkit callback function. */
851 #define VOID_TO_LISP(larg,varg) \
852 do { ((larg).v = (void *) (varg)); } while (0)
853 #define CVOID_TO_LISP(larg,varg) \
854 do { ((larg).cv = (const void *) (varg)); } while (0)
856 /* Use this for turning a Lisp_Object into a (void *), as when the
857 Lisp_Object is passed into a toolkit callback function. */
858 #define LISP_TO_VOID(larg) ((larg).v)
859 #define LISP_TO_CVOID(larg) ((larg).cv)
860 #endif /* not NO_UNION_TYPE */
861 #endif /* USE_X_TOOLKIT */
864 /* The glyph datatype, used to represent characters on the display. */
866 /* The low eight bits are the character code, and the bits above them
867 are the numeric face ID. If FID is the face ID of a glyph on a
868 frame F, then F->display.x->faces[FID] contains the description of
869 that face. This is an int instead of a short, so we can support a
870 good bunch of face ID's; given that we have no mechanism for
871 tossing unused frame face ID's yet, we'll probably run out of 255
873 #define GLYPH unsigned int
876 /* The FAST macros assume that we already know we're in an X window. */
878 /* Given a character code and a face ID, return the appropriate glyph. */
879 #define FAST_MAKE_GLYPH(char, face) ((char) | ((face) << 8))
881 /* Return a glyph's character code. */
882 #define FAST_GLYPH_CHAR(glyph) ((glyph) & 0xff)
884 /* Return a glyph's face ID. */
885 #define FAST_GLYPH_FACE(glyph) (((glyph) >> 8) & ((1 << 24) - 1))
887 /* Slower versions that test the frame type first. */
888 #define MAKE_GLYPH(f, char, face) (FRAME_TERMCAP_P (f) ? (char) \
889 : FAST_MAKE_GLYPH (char, face))
890 #define GLYPH_CHAR(f, g) (FRAME_TERMCAP_P (f) ? (g) : FAST_GLYPH_CHAR (g))
891 #define GLYPH_FACE(f, g) (FRAME_TERMCAP_P (f) ? (0) : FAST_GLYPH_FACE (g))
892 #else /* not HAVE_FACES */
893 #define MAKE_GLYPH(f, char, face) (char)
894 #define GLYPH_CHAR(f, g) (g)
895 #define GLYPH_FACE(f, g) (g)
896 #endif /* not HAVE_FACES */
898 /* The ID of the mode line highlighting face. */
899 #define GLYPH_MODE_LINE_FACE 1
901 /* Data type checking */
903 #define NILP(x) (XFASTINT (x) == XFASTINT (Qnil))
904 #define GC_NILP(x) GC_EQ (x, Qnil)
906 #ifdef LISP_FLOAT_TYPE
907 #define NUMBERP(x) (INTEGERP (x) || FLOATP (x))
908 #define GC_NUMBERP(x) (GC_INTEGERP (x) || GC_FLOATP (x))
910 #define NUMBERP(x) (INTEGERP (x))
911 #define GC_NUMBERP(x) (GC_INTEGERP (x))
913 #define NATNUMP(x) (INTEGERP (x) && XINT (x) >= 0)
914 #define GC_NATNUMP(x) (GC_INTEGERP (x) && XINT (x) >= 0)
916 #define INTEGERP(x) (XTYPE ((x)) == Lisp_Int)
917 #define GC_INTEGERP(x) (XGCTYPE ((x)) == Lisp_Int)
918 #define SYMBOLP(x) (XTYPE ((x)) == Lisp_Symbol)
919 #define GC_SYMBOLP(x) (XGCTYPE ((x)) == Lisp_Symbol)
920 #define MISCP(x) (XTYPE ((x)) == Lisp_Misc)
921 #define GC_MISCP(x) (XGCTYPE ((x)) == Lisp_Misc)
922 #define VECTORLIKEP(x) (XTYPE ((x)) == Lisp_Vectorlike)
923 #define GC_VECTORLIKEP(x) (XGCTYPE ((x)) == Lisp_Vectorlike)
924 #define STRINGP(x) (XTYPE ((x)) == Lisp_String)
925 #define GC_STRINGP(x) (XGCTYPE ((x)) == Lisp_String)
926 #define CONSP(x) (XTYPE ((x)) == Lisp_Cons)
927 #define GC_CONSP(x) (XGCTYPE ((x)) == Lisp_Cons)
929 #ifdef LISP_FLOAT_TYPE
930 #define FLOATP(x) (XTYPE ((x)) == Lisp_Float)
931 #define GC_FLOATP(x) (XGCTYPE ((x)) == Lisp_Float)
933 #define FLOATP(x) (0)
934 #define GC_FLOATP(x) (0)
936 #define VECTORP(x) (VECTORLIKEP (x) && !(XVECTOR (x)->size & PSEUDOVECTOR_FLAG))
937 #define GC_VECTORP(x) (GC_VECTORLIKEP (x) && !(XVECTOR (x)->size & PSEUDOVECTOR_FLAG))
938 #define OVERLAYP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Overlay)
939 #define GC_OVERLAYP(x) (GC_MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Overlay)
940 #define MARKERP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Marker)
941 #define GC_MARKERP(x) (GC_MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Marker)
942 #define INTFWDP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Intfwd)
943 #define GC_INTFWDP(x) (GC_MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Intfwd)
944 #define BOOLFWDP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Boolfwd)
945 #define GC_BOOLFWDP(x) (GC_MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Boolfwd)
946 #define OBJFWDP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Objfwd)
947 #define GC_OBJFWDP(x) (GC_MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Objfwd)
948 #define BUFFER_OBJFWDP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Buffer_Objfwd)
949 #define GC_BUFFER_OBJFWDP(x) (GC_MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Buffer_Objfwd)
950 #define BUFFER_LOCAL_VALUEP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Buffer_Local_Value)
951 #define GC_BUFFER_LOCAL_VALUEP(x) (GC_MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Buffer_Local_Value)
952 #define SOME_BUFFER_LOCAL_VALUEP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Some_Buffer_Local_Value)
953 #define GC_SOME_BUFFER_LOCAL_VALUEP(x) (GC_MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Some_Buffer_Local_Value)
954 #define KBOARD_OBJFWDP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Kboard_Objfwd)
955 #define GC_KBOARD_OBJFWDP(x) (GC_MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Kboard_Objfwd)
958 /* True if object X is a pseudovector whose code is CODE. */
959 #define PSEUDOVECTORP(x, code) \
961 && (((XVECTOR (x)->size & (PSEUDOVECTOR_FLAG | (code)))) \
962 == (PSEUDOVECTOR_FLAG | (code))))
964 /* True if object X is a pseudovector whose code is CODE.
965 This one works during GC. */
966 #define GC_PSEUDOVECTORP(x, code) \
967 (GC_VECTORLIKEP (x) \
968 && (((XVECTOR (x)->size & (PSEUDOVECTOR_FLAG | (code)))) \
969 == (PSEUDOVECTOR_FLAG | (code))))
971 /* Test for specific pseudovector types. */
972 #define WINDOW_CONFIGURATIONP(x) PSEUDOVECTORP (x, PVEC_WINDOW_CONFIGURATION)
973 #define GC_WINDOW_CONFIGURATIONP(x) GC_PSEUDOVECTORP (x, PVEC_WINDOW_CONFIGURATION)
974 #define PROCESSP(x) PSEUDOVECTORP (x, PVEC_PROCESS)
975 #define GC_PROCESSP(x) GC_PSEUDOVECTORP (x, PVEC_PROCESS)
976 #define WINDOWP(x) PSEUDOVECTORP (x, PVEC_WINDOW)
977 #define GC_WINDOWP(x) GC_PSEUDOVECTORP (x, PVEC_WINDOW)
978 #define SUBRP(x) PSEUDOVECTORP (x, PVEC_SUBR)
979 #define GC_SUBRP(x) GC_PSEUDOVECTORP (x, PVEC_SUBR)
980 #define COMPILEDP(x) PSEUDOVECTORP (x, PVEC_COMPILED)
981 #define GC_COMPILEDP(x) GC_PSEUDOVECTORP (x, PVEC_COMPILED)
982 #define BUFFERP(x) PSEUDOVECTORP (x, PVEC_BUFFER)
983 #define GC_BUFFERP(x) GC_PSEUDOVECTORP (x, PVEC_BUFFER)
984 #define CHAR_TABLE_P(x) PSEUDOVECTORP (x, PVEC_CHAR_TABLE)
985 #define GC_CHAR_TABLE_P(x) GC_PSEUDOVECTORP (x, PVEC_CHAR_TABLE)
986 #define BOOL_VECTOR_P(x) PSEUDOVECTORP (x, PVEC_BOOL_VECTOR)
987 #define GC_BOOL_VECTOR_P(x) GC_PSEUDOVECTORP (x, PVEC_BOOL_VECTOR)
988 #define FRAMEP(x) PSEUDOVECTORP (x, PVEC_FRAME)
989 #define GC_FRAMEP(x) GC_PSEUDOVECTORP (x, PVEC_FRAME)
991 #define EQ(x, y) (XFASTINT (x) == XFASTINT (y))
992 #define GC_EQ(x, y) (XGCTYPE (x) == XGCTYPE (y) && XPNTR (x) == XPNTR (y))
994 #define CHECK_LIST(x, i) \
995 do { if (!CONSP ((x)) && !NILP (x)) x = wrong_type_argument (Qlistp, (x)); } while (0)
997 #define CHECK_STRING(x, i) \
998 do { if (!STRINGP ((x))) x = wrong_type_argument (Qstringp, (x)); } while (0)
1000 #define CHECK_CONS(x, i) \
1001 do { if (!CONSP ((x))) x = wrong_type_argument (Qconsp, (x)); } while (0)
1003 #define CHECK_SYMBOL(x, i) \
1004 do { if (!SYMBOLP ((x))) x = wrong_type_argument (Qsymbolp, (x)); } while (0)
1006 #define CHECK_CHAR_TABLE(x, i) \
1007 do { if (!CHAR_TABLE_P ((x))) \
1008 x = wrong_type_argument (Qchar_table_p, (x)); } while (0)
1010 #define CHECK_VECTOR(x, i) \
1011 do { if (!VECTORP ((x))) x = wrong_type_argument (Qvectorp, (x)); } while (0)
1013 #define CHECK_VECTOR_OR_CHAR_TABLE(x, i) \
1014 do { if (!VECTORP ((x)) && !CHAR_TABLE_P ((x))) \
1015 x = wrong_type_argument (Qvector_or_char_table_p, (x)); \
1018 #define CHECK_BUFFER(x, i) \
1019 do { if (!BUFFERP ((x))) x = wrong_type_argument (Qbufferp, (x)); } while (0)
1021 #define CHECK_WINDOW(x, i) \
1022 do { if (!WINDOWP ((x))) x = wrong_type_argument (Qwindowp, (x)); } while (0)
1024 /* This macro rejects windows on the interior of the window tree as
1025 "dead", which is what we want; this is an argument-checking macro, and
1026 the user should never get access to interior windows.
1028 A window of any sort, leaf or interior, is dead iff the buffer,
1029 vchild, and hchild members are all nil. */
1031 #define CHECK_LIVE_WINDOW(x, i) \
1033 if (!WINDOWP ((x)) \
1034 || NILP (XWINDOW ((x))->buffer)) \
1035 x = wrong_type_argument (Qwindow_live_p, (x)); \
1038 #define CHECK_PROCESS(x, i) \
1039 do { if (!PROCESSP ((x))) x = wrong_type_argument (Qprocessp, (x)); } while (0)
1041 #define CHECK_NUMBER(x, i) \
1042 do { if (!INTEGERP ((x))) x = wrong_type_argument (Qintegerp, (x)); } while (0)
1044 #define CHECK_NATNUM(x, i) \
1045 do { if (!NATNUMP (x)) x = wrong_type_argument (Qwholenump, (x)); } while (0)
1047 #define CHECK_MARKER(x, i) \
1048 do { if (!MARKERP ((x))) x = wrong_type_argument (Qmarkerp, (x)); } while (0)
1050 #define CHECK_NUMBER_COERCE_MARKER(x, i) \
1051 do { if (MARKERP ((x))) XSETFASTINT (x, marker_position (x)); \
1052 else if (!INTEGERP ((x))) x = wrong_type_argument (Qinteger_or_marker_p, (x)); } while (0)
1054 #ifdef LISP_FLOAT_TYPE
1060 #define XFLOATINT(n) extract_float((n))
1062 #define CHECK_FLOAT(x, i) \
1063 do { if (!FLOATP (x)) \
1064 x = wrong_type_argument (Qfloatp, (x)); } while (0)
1066 #define CHECK_NUMBER_OR_FLOAT(x, i) \
1067 do { if (!FLOATP (x) && !INTEGERP (x)) \
1068 x = wrong_type_argument (Qnumberp, (x)); } while (0)
1070 #define CHECK_NUMBER_OR_FLOAT_COERCE_MARKER(x, i) \
1071 do { if (MARKERP (x)) XSETFASTINT (x, marker_position (x)); \
1072 else if (!INTEGERP (x) && !FLOATP (x)) \
1073 x = wrong_type_argument (Qnumber_or_marker_p, (x)); } while (0)
1075 #else /* Not LISP_FLOAT_TYPE */
1077 #define CHECK_NUMBER_OR_FLOAT CHECK_NUMBER
1079 #define CHECK_NUMBER_OR_FLOAT_COERCE_MARKER CHECK_NUMBER_COERCE_MARKER
1081 #define XFLOATINT(n) XINT((n))
1082 #endif /* LISP_FLOAT_TYPE */
1084 #define CHECK_OVERLAY(x, i) \
1085 do { if (!OVERLAYP ((x))) x = wrong_type_argument (Qoverlayp, (x));} while (0)
1087 /* Cast pointers to this type to compare them. Some machines want int. */
1088 #ifndef PNTR_COMPARISON_TYPE
1089 #define PNTR_COMPARISON_TYPE unsigned int
1092 /* Define a built-in function for calling from Lisp.
1093 `lname' should be the name to give the function in Lisp,
1094 as a null-terminated C string.
1095 `fnname' should be the name of the function in C.
1096 By convention, it starts with F.
1097 `sname' should be the name for the C constant structure
1098 that records information on this function for internal use.
1099 By convention, it should be the same as `fnname' but with S instead of F.
1100 It's too bad that C macros can't compute this from `fnname'.
1101 `minargs' should be a number, the minimum number of arguments allowed.
1102 `maxargs' should be a number, the maximum number of arguments allowed,
1103 or else MANY or UNEVALLED.
1104 MANY means pass a vector of evaluated arguments,
1105 in the form of an integer number-of-arguments
1106 followed by the address of a vector of Lisp_Objects
1107 which contains the argument values.
1108 UNEVALLED means pass the list of unevaluated arguments
1109 `prompt' says how to read arguments for an interactive call.
1110 See the doc string for `interactive'.
1111 A null string means call interactively with no arguments.
1112 `doc' is documentation for the user. */
1114 #if !defined (__STDC__) || defined (USE_NONANSI_DEFUN)
1115 #define DEFUN(lname, fnname, sname, minargs, maxargs, prompt, doc) \
1116 Lisp_Object fnname (); \
1117 struct Lisp_Subr sname = \
1118 { PVEC_SUBR | (sizeof (struct Lisp_Subr) / sizeof (EMACS_INT)), \
1119 fnname, minargs, maxargs, lname, prompt, 0}; \
1124 /* This version of DEFUN declares a function prototype with the right
1125 arguments, so we can catch errors with maxargs at compile-time. */
1126 #define DEFUN(lname, fnname, sname, minargs, maxargs, prompt, doc) \
1127 Lisp_Object fnname DEFUN_ARGS_ ## maxargs ; \
1128 struct Lisp_Subr sname = \
1129 { PVEC_SUBR | (sizeof (struct Lisp_Subr) / sizeof (EMACS_INT)), \
1130 fnname, minargs, maxargs, lname, prompt, 0}; \
1133 /* Note that the weird token-substitution semantics of ANSI C makes
1134 this work for MANY and UNEVALLED. */
1135 #define DEFUN_ARGS_MANY (int, Lisp_Object *)
1136 #define DEFUN_ARGS_UNEVALLED (Lisp_Object)
1137 #define DEFUN_ARGS_0 (void)
1138 #define DEFUN_ARGS_1 (Lisp_Object)
1139 #define DEFUN_ARGS_2 (Lisp_Object, Lisp_Object)
1140 #define DEFUN_ARGS_3 (Lisp_Object, Lisp_Object, Lisp_Object)
1141 #define DEFUN_ARGS_4 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object)
1142 #define DEFUN_ARGS_5 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
1144 #define DEFUN_ARGS_6 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
1145 Lisp_Object, Lisp_Object)
1146 #define DEFUN_ARGS_7 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
1147 Lisp_Object, Lisp_Object, Lisp_Object)
1151 is how we define the symbol for function `name' at start-up time. */
1152 extern void defsubr ();
1155 #define UNEVALLED -1
1157 extern void defvar_lisp ();
1158 extern void defvar_bool ();
1159 extern void defvar_int ();
1160 extern void defvar_kboard ();
1162 /* Macros we use to define forwarded Lisp variables.
1163 These are used in the syms_of_FILENAME functions. */
1165 #define DEFVAR_LISP(lname, vname, doc) defvar_lisp (lname, vname)
1166 #define DEFVAR_LISP_NOPRO(lname, vname, doc) defvar_lisp_nopro (lname, vname)
1167 #define DEFVAR_BOOL(lname, vname, doc) defvar_bool (lname, vname)
1168 #define DEFVAR_INT(lname, vname, doc) defvar_int (lname, vname)
1169 #define DEFVAR_PER_BUFFER(lname, vname, type, doc) \
1170 defvar_per_buffer (lname, vname, type, 0)
1171 #define DEFVAR_KBOARD(lname, vname, doc) \
1172 defvar_kboard (lname, \
1173 (int)((char *)(¤t_kboard->vname) \
1174 - (char *)current_kboard))
1176 /* Structure for recording Lisp call stack for backtrace purposes. */
1178 /* The special binding stack holds the outer values of variables while
1179 they are bound by a function application or a let form, stores the
1180 code to be executed for Lisp unwind-protect forms, and stores the C
1181 functions to be called for record_unwind_protect.
1183 If func is non-zero, undoing this binding applies func to old_value;
1184 This implements record_unwind_protect.
1185 If func is zero and symbol is nil, undoing this binding evaluates
1186 the list of forms in old_value; this implements Lisp's unwind-protect
1188 Otherwise, undoing this binding stores old_value as symbol's value; this
1189 undoes the bindings made by a let form or function call. */
1192 Lisp_Object symbol
, old_value
;
1193 Lisp_Object (*func
) ();
1194 Lisp_Object unused
; /* Dividing by 16 is faster than by 12 */
1197 extern struct specbinding
*specpdl
;
1198 extern struct specbinding
*specpdl_ptr
;
1199 extern int specpdl_size
;
1201 /* Everything needed to describe an active condition case. */
1204 /* The handler clauses and variable from the condition-case form. */
1205 Lisp_Object handler
;
1207 /* Fsignal stores here the condition-case clause that applies,
1208 and Fcondition_case thus knows which clause to run. */
1209 Lisp_Object chosen_clause
;
1211 /* Used to effect the longjump out to the handler. */
1212 struct catchtag
*tag
;
1214 /* The next enclosing handler. */
1215 struct handler
*next
;
1218 extern struct handler
*handlerlist
;
1220 extern struct catchtag
*catchlist
;
1221 extern struct backtrace
*backtrace_list
;
1223 extern Lisp_Object memory_signal_data
;
1225 /* An address near the bottom of the stack.
1226 Tells GC how to save a copy of the stack. */
1227 extern char *stack_bottom
;
1229 /* Check quit-flag and quit if it is non-nil. */
1232 if (!NILP (Vquit_flag) && NILP (Vinhibit_quit)) \
1233 { Vquit_flag = Qnil; Fsignal (Qquit, Qnil); }
1235 /* Nonzero if ought to quit now. */
1237 #define QUITP (!NILP (Vquit_flag) && NILP (Vinhibit_quit))
1239 /* 1 if CH is upper case. */
1241 #define UPPERCASEP(CH) \
1242 (XCHAR_TABLE (current_buffer->downcase_table)->contents[CH] != (CH))
1244 /* 1 if CH is lower case. */
1246 #define LOWERCASEP(CH) \
1248 && XCHAR_TABLE (current_buffer->upcase_table)->contents[CH] != (CH))
1250 /* 1 if CH is neither upper nor lower case. */
1252 #define NOCASEP(CH) \
1253 (XCHAR_TABLE (current_buffer->upcase_table)->contents[CH] == (CH))
1255 /* Upcase a character, or make no change if that cannot be done. */
1257 #define UPCASE(CH) \
1258 (XCHAR_TABLE (current_buffer->downcase_table)->contents[CH] == (CH) \
1259 ? UPCASE1 (CH) : (CH))
1261 /* Upcase a character known to be not upper case. */
1263 #define UPCASE1(CH) (XCHAR_TABLE (current_buffer->upcase_table)->contents[CH])
1265 /* Downcase a character, or make no change if that cannot be done. */
1267 #define DOWNCASE(CH) \
1268 (XCHAR_TABLE (current_buffer->downcase_table)->contents[CH])
1270 /* Current buffer's map from characters to lower-case characters. */
1272 #define DOWNCASE_TABLE XCHAR_TABLE (current_buffer->downcase_table)->contents
1274 extern Lisp_Object Vascii_downcase_table
;
1276 /* Number of bytes of structure consed since last GC. */
1278 extern int consing_since_gc
;
1280 /* Threshold for doing another gc. */
1282 extern int gc_cons_threshold
;
1284 /* Structure for recording stack slots that need marking. */
1286 /* This is a chain of structures, each of which points at a Lisp_Object variable
1287 whose value should be marked in garbage collection.
1288 Normally every link of the chain is an automatic variable of a function,
1289 and its `val' points to some argument or local variable of the function.
1290 On exit to the function, the chain is set back to the value it had on entry.
1291 This way, no link remains in the chain when the stack frame containing the
1294 Every function that can call Feval must protect in this fashion all
1295 Lisp_Object variables whose contents will be used again. */
1297 extern struct gcpro
*gcprolist
;
1302 Lisp_Object
*var
; /* Address of first protected variable */
1303 int nvars
; /* Number of consecutive protected variables */
1306 #define GCPRO1(varname) \
1307 {gcpro1.next = gcprolist; gcpro1.var = &varname; gcpro1.nvars = 1; \
1308 gcprolist = &gcpro1; }
1310 #define GCPRO2(varname1, varname2) \
1311 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
1312 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
1313 gcprolist = &gcpro2; }
1315 #define GCPRO3(varname1, varname2, varname3) \
1316 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
1317 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
1318 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
1319 gcprolist = &gcpro3; }
1321 #define GCPRO4(varname1, varname2, varname3, varname4) \
1322 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
1323 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
1324 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
1325 gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \
1326 gcprolist = &gcpro4; }
1328 #define GCPRO5(varname1, varname2, varname3, varname4, varname5) \
1329 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
1330 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
1331 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
1332 gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \
1333 gcpro5.next = &gcpro4; gcpro5.var = &varname5; gcpro5.nvars = 1; \
1334 gcprolist = &gcpro5; }
1336 /* Call staticpro (&var) to protect static variable `var'. */
1340 #define UNGCPRO (gcprolist = gcpro1.next)
1342 /* Evaluate expr, UNGCPRO, and then return the value of expr. */
1343 #define RETURN_UNGCPRO(expr) \
1346 Lisp_Object ret_ungc_val; \
1347 ret_ungc_val = (expr); \
1349 return ret_ungc_val; \
1353 /* Defined in data.c */
1354 extern Lisp_Object Qnil
, Qt
, Qquote
, Qlambda
, Qsubr
, Qunbound
;
1355 extern Lisp_Object Qerror_conditions
, Qerror_message
, Qtop_level
;
1356 extern Lisp_Object Qerror
, Qquit
, Qwrong_type_argument
, Qargs_out_of_range
;
1357 extern Lisp_Object Qvoid_variable
, Qvoid_function
;
1358 extern Lisp_Object Qsetting_constant
, Qinvalid_read_syntax
;
1359 extern Lisp_Object Qinvalid_function
, Qwrong_number_of_arguments
, Qno_catch
;
1360 extern Lisp_Object Qend_of_file
, Qarith_error
;
1361 extern Lisp_Object Qbeginning_of_buffer
, Qend_of_buffer
, Qbuffer_read_only
;
1362 extern Lisp_Object Qmark_inactive
;
1364 extern Lisp_Object Qrange_error
, Qdomain_error
, Qsingularity_error
;
1365 extern Lisp_Object Qoverflow_error
, Qunderflow_error
;
1367 extern Lisp_Object Qintegerp
, Qnumberp
, Qnatnump
, Qwholenump
;
1368 extern Lisp_Object Qsymbolp
, Qlistp
, Qconsp
;
1369 extern Lisp_Object Qstringp
, Qarrayp
, Qsequencep
, Qbufferp
;
1370 extern Lisp_Object Qchar_or_string_p
, Qmarkerp
, Qvectorp
;
1371 extern Lisp_Object Qinteger_or_marker_p
, Qnumber_or_marker_p
;
1372 extern Lisp_Object Qchar_table_p
, Qvector_or_char_table_p
;
1373 extern Lisp_Object Qboundp
, Qfboundp
;
1374 extern Lisp_Object Qbuffer_or_string_p
;
1375 extern Lisp_Object Qcdr
;
1377 #ifdef LISP_FLOAT_TYPE
1378 extern Lisp_Object Qfloatp
, Qinteger_or_floatp
, Qinteger_or_float_or_marker_p
;
1379 #endif /* LISP_FLOAT_TYPE */
1381 extern Lisp_Object Qframep
;
1383 extern Lisp_Object
Feq (), Fnull (), Flistp (), Fconsp (), Fatom (), Fnlistp ();
1384 extern Lisp_Object
Fintegerp (), Fnatnump (), Fsymbolp ();
1385 extern Lisp_Object
Fvectorp (), Fstringp (), Farrayp (), Fsequencep ();
1386 extern Lisp_Object
Fbufferp (), Fmarkerp (), Fsubrp (), Fchar_or_string_p ();
1387 extern Lisp_Object
Finteger_or_marker_p ();
1388 #ifdef LISP_FLOAT_TYPE
1389 extern Lisp_Object
Ffloatp(), Finteger_or_floatp();
1390 extern Lisp_Object
Finteger_or_float_or_marker_p(), Ftruncate();
1391 #endif /* LISP_FLOAT_TYPE */
1393 extern Lisp_Object
Fcar (), Fcar_safe(), Fcdr (), Fcdr_safe();
1394 extern Lisp_Object
Fsetcar (), Fsetcdr ();
1395 extern Lisp_Object
Fboundp (), Ffboundp (), Fmakunbound (), Ffmakunbound ();
1396 extern Lisp_Object
Fsymbol_function (), Fsymbol_plist (), Fsymbol_name ();
1397 extern Lisp_Object
indirect_function (), Findirect_function ();
1398 extern Lisp_Object
Ffset (), Fsetplist ();
1399 extern Lisp_Object
Fsymbol_value (), find_symbol_value (), Fset ();
1400 extern Lisp_Object
Fdefault_value (), Fset_default (), Fdefault_boundp ();
1401 extern Lisp_Object
Fmake_local_variable ();
1403 extern Lisp_Object
Faref (), Faset ();
1405 extern Lisp_Object
Fstring_to_number (), Fnumber_to_string ();
1406 extern Lisp_Object
Feqlsign (), Fgtr (), Flss (), Fgeq (), Fleq ();
1407 extern Lisp_Object
Fneq (), Fzerop ();
1408 extern Lisp_Object
Fplus (), Fminus (), Ftimes (), Fquo (), Frem ();
1409 extern Lisp_Object
Fmax (), Fmin ();
1410 extern Lisp_Object
Flogand (), Flogior (), Flogxor (), Flognot ();
1411 extern Lisp_Object
Flsh (), Fash ();
1413 extern Lisp_Object
Fadd1 (), Fsub1 ();
1415 extern Lisp_Object
long_to_cons ();
1416 extern unsigned long cons_to_long ();
1417 extern void args_out_of_range ();
1418 extern void args_out_of_range_3 ();
1419 extern Lisp_Object
wrong_type_argument ();
1420 extern void store_symval_forwarding ();
1421 extern Lisp_Object
do_symval_forwarding ();
1422 #ifdef LISP_FLOAT_TYPE
1423 extern Lisp_Object
Ffloat_to_int(), Fint_to_float();
1424 extern double extract_float();
1425 extern Lisp_Object
make_float ();
1426 extern Lisp_Object
Ffloat ();
1427 #endif /* LISP_FLOAT_TYPE */
1429 /* Defined in cmds.c */
1430 extern Lisp_Object
Fend_of_line (), Fforward_char (), Fforward_line ();
1432 /* Defined in syntax.c */
1433 extern Lisp_Object
Fforward_word ();
1435 /* Defined in fns.c */
1436 extern Lisp_Object Qstring_lessp
;
1437 extern Lisp_Object Vfeatures
;
1438 extern Lisp_Object
Fidentity (), Frandom ();
1439 extern Lisp_Object
Flength (), Fsafe_length ();
1440 extern Lisp_Object
Fappend (), Fconcat (), Fvconcat (), Fcopy_sequence ();
1441 extern Lisp_Object
Fsubstring ();
1442 extern Lisp_Object
Fnth (), Fnthcdr (), Fmemq (), Fassq (), Fassoc ();
1443 extern Lisp_Object
Felt (), Fmember (), Frassq (), Fdelq (), Fsort ();
1444 extern Lisp_Object
Freverse (), Fnreverse (), Fget (), Fput (), Fequal ();
1445 extern Lisp_Object
Ffillarray (), Fnconc (), Fmapcar (), Fmapconcat ();
1446 extern Lisp_Object
Fy_or_n_p (), do_yes_or_no_p ();
1447 extern Lisp_Object
Ffeaturep (), Frequire () , Fprovide ();
1448 extern Lisp_Object
concat2 (), nconc2 ();
1449 extern Lisp_Object
assq_no_quit ();
1450 extern Lisp_Object
Fcopy_alist ();
1451 extern Lisp_Object
Fplist_get ();
1452 extern Lisp_Object
Fset_char_table_parent ();
1454 /* Defined in insdel.c */
1455 extern void move_gap ();
1456 extern void make_gap ();
1457 extern void insert ();
1458 extern void insert_and_inherit ();
1459 extern void insert_1 ();
1460 extern void insert_from_string ();
1461 extern void insert_from_buffer ();
1462 extern void insert_char ();
1463 extern void insert_string ();
1464 extern void insert_before_markers ();
1465 extern void insert_before_markers_and_inherit ();
1466 extern void insert_from_string_before_markers ();
1467 extern void del_range ();
1468 extern void del_range_1 ();
1469 extern void modify_region ();
1470 extern void prepare_to_modify_buffer ();
1471 extern void signal_before_change ();
1472 extern void signal_after_change ();
1474 /* Defined in dispnew.c */
1475 extern Lisp_Object
Fding (), Fredraw_display ();
1476 extern Lisp_Object
Fsleep_for ();
1478 /* Defined in xdisp.c */
1479 extern Lisp_Object Vmessage_log_max
;
1480 extern void message ();
1481 extern void message_nolog ();
1482 extern void message1 ();
1483 extern void message1_nolog ();
1484 extern void message2 ();
1485 extern void message2_nolog ();
1486 extern void message_dolog ();
1487 extern void message_log_maybe_newline ();
1489 /* Defined in alloc.c */
1490 extern Lisp_Object Vpurify_flag
;
1491 extern Lisp_Object
Fcons (), Flist(), Fmake_list (), allocate_misc ();
1492 extern Lisp_Object
Fmake_vector (), Fvector (), Fmake_symbol (), Fmake_marker ();
1493 extern Lisp_Object
Fmake_string (), build_string (), make_string ();
1494 extern Lisp_Object
make_event_array (), make_uninit_string ();
1495 extern Lisp_Object
Fpurecopy (), make_pure_string ();
1496 extern Lisp_Object
pure_cons (), make_pure_vector ();
1497 extern Lisp_Object
Fgarbage_collect ();
1498 extern Lisp_Object
Fmake_byte_code ();
1499 extern Lisp_Object
Fmake_bool_vector (), Fmake_char_table ();
1500 extern Lisp_Object Qchar_table_extra_slots
;
1501 extern struct Lisp_Vector
*allocate_vectorlike ();
1502 extern int gc_in_progress
;
1504 /* Defined in print.c */
1505 extern Lisp_Object Vprin1_to_string_buffer
;
1506 extern Lisp_Object
Fprin1 (), Fprin1_to_string (), Fprinc ();
1507 extern Lisp_Object
Fterpri (), Fprint ();
1508 extern Lisp_Object
Ferror_message_string ();
1509 extern Lisp_Object Vstandard_output
, Qstandard_output
;
1510 extern Lisp_Object Qexternal_debugging_output
;
1511 extern void temp_output_buffer_setup (), temp_output_buffer_show ();
1512 extern int print_level
, print_escape_newlines
;
1513 extern Lisp_Object Qprint_escape_newlines
;
1515 /* Defined in lread.c */
1516 extern Lisp_Object Qvariable_documentation
, Qstandard_input
;
1517 extern Lisp_Object Vobarray
, Vstandard_input
;
1518 extern Lisp_Object
Fread (), Fread_from_string ();
1519 extern Lisp_Object
Fintern (), Fintern_soft (), Fload ();
1520 extern Lisp_Object
Fget_file_char (), Fread_char ();
1521 extern Lisp_Object
read_filtered_event ();
1522 extern Lisp_Object
Feval_current_buffer (), Feval_region ();
1523 extern Lisp_Object
intern (), oblookup ();
1524 #define LOADHIST_ATTACH(x) \
1525 if (initialized) Vcurrent_load_list = Fcons (x, Vcurrent_load_list)
1526 extern Lisp_Object Vcurrent_load_list
;
1527 extern Lisp_Object Vload_history
;
1529 /* Defined in eval.c */
1530 extern Lisp_Object Qautoload
, Qexit
, Qinteractive
, Qcommandp
, Qdefun
, Qmacro
;
1531 extern Lisp_Object Vinhibit_quit
, Qinhibit_quit
, Vquit_flag
;
1532 extern Lisp_Object Vmocklisp_arguments
, Qmocklisp
, Qmocklisp_arguments
;
1533 extern Lisp_Object Vautoload_queue
;
1534 extern Lisp_Object Vdebug_on_error
;
1535 /* To run a normal hook, use the appropriate function from the list below.
1536 The calling convention:
1538 if (!NILP (Vrun_hooks))
1539 call1 (Vrun_hooks, Qmy_funny_hook);
1541 should no longer be used. */
1542 extern Lisp_Object Vrun_hooks
;
1543 extern Lisp_Object
Frun_hooks (), Frun_hook_with_args ();
1544 extern Lisp_Object
Frun_hook_with_args_until_success ();
1545 extern Lisp_Object
Frun_hook_with_args_until_failure ();
1546 extern Lisp_Object
Fand (), For (), Fif (), Fprogn (), Fprog1 (), Fprog2 ();
1547 extern Lisp_Object
Fsetq (), Fquote ();
1548 extern Lisp_Object
Fuser_variable_p (), Finteractive_p ();
1549 extern Lisp_Object
Fdefun (), Flet (), FletX (), Fwhile ();
1550 extern Lisp_Object
Fcatch (), Fthrow (), Funwind_protect ();
1551 extern Lisp_Object
Fcondition_case (), Fsignal ();
1552 extern Lisp_Object
Ffunction_type (), Fautoload (), Fcommandp ();
1553 extern Lisp_Object
Feval (), Fapply (), Ffuncall ();
1554 extern Lisp_Object
Fglobal_set (), Fglobal_value (), Fbacktrace ();
1555 extern Lisp_Object
apply1 (), call0 (), call1 (), call2 (), call3 ();
1556 extern Lisp_Object
call4 (), call5 (), call6 ();
1557 extern Lisp_Object
Fkill_emacs (), Fkey_binding (), Fsit_for ();
1558 extern Lisp_Object
Fdo_auto_save (), Fset_marker ();
1559 extern Lisp_Object
apply_lambda ();
1560 extern Lisp_Object
internal_catch ();
1561 extern Lisp_Object
internal_condition_case ();
1562 extern Lisp_Object
internal_condition_case_1 ();
1563 extern Lisp_Object
unbind_to ();
1564 extern void error ();
1565 extern Lisp_Object
un_autoload ();
1566 extern Lisp_Object
Ffetch_bytecode ();
1568 /* Defined in editfns.c */
1569 extern Lisp_Object
Fgoto_char ();
1570 extern Lisp_Object
Fpoint_min_marker (), Fpoint_max_marker ();
1571 extern Lisp_Object
Fpoint_min (), Fpoint_max ();
1572 extern Lisp_Object
Fpoint (), Fpoint_marker (), Fmark_marker ();
1573 extern Lisp_Object
Ffollowing_char (), Fprevious_char (), Fchar_after ();
1574 extern Lisp_Object
Finsert (), Finsert_and_inherit ();
1575 extern Lisp_Object
Finsert_before_markers ();
1576 extern Lisp_Object
Finsert_buffer_substring ();
1577 extern Lisp_Object
Finsert_char ();
1578 extern Lisp_Object
Feolp (), Feobp (), Fbolp (), Fbobp ();
1579 extern Lisp_Object
Fformat (), format1 ();
1580 extern Lisp_Object
make_buffer_string (), Fbuffer_substring ();
1581 extern Lisp_Object
Fbuffer_string ();
1582 extern Lisp_Object
Fstring_equal (), Fstring_lessp (), Fbuffer_substring_lessp ();
1583 extern Lisp_Object
save_excursion_save (), save_restriction_save ();
1584 extern Lisp_Object
save_excursion_restore (), save_restriction_restore ();
1585 extern Lisp_Object
Fchar_to_string ();
1586 extern Lisp_Object
Fdelete_region (), Fnarrow_to_region (), Fwiden ();
1588 /* defined in buffer.c */
1589 extern Lisp_Object
Foverlay_start (), Foverlay_end ();
1590 extern void adjust_overlays_for_insert ();
1591 extern void adjust_overlays_for_delete ();
1592 extern void fix_overlays_in_range ();
1593 extern int overlay_touches_p ();
1594 extern Lisp_Object Vbuffer_alist
, Vinhibit_read_only
;
1595 extern Lisp_Object
Fget_buffer (), Fget_buffer_create (), Fset_buffer ();
1596 extern Lisp_Object
Fbarf_if_buffer_read_only ();
1597 extern Lisp_Object
Fcurrent_buffer (), Fswitch_to_buffer (), Fpop_to_buffer ();
1598 extern Lisp_Object
Fother_buffer ();
1599 extern Lisp_Object
Foverlay_get ();
1600 extern Lisp_Object
Fbuffer_modified_p (), Fset_buffer_modified_p ();
1601 extern Lisp_Object
Fkill_buffer (), Fkill_all_local_variables ();
1602 extern Lisp_Object
Fbuffer_disable_undo (), Fbuffer_enable_undo ();
1603 extern Lisp_Object
Ferase_buffer ();
1604 extern Lisp_Object Qoverlayp
;
1605 extern struct buffer
*all_buffers
;
1607 /* defined in marker.c */
1609 extern Lisp_Object
Fmarker_position (), Fmarker_buffer ();
1610 extern Lisp_Object
Fcopy_marker ();
1612 /* Defined in fileio.c */
1614 extern Lisp_Object Qfile_error
;
1615 extern Lisp_Object
Ffind_file_name_handler ();
1616 extern Lisp_Object
Ffile_name_as_directory ();
1617 extern Lisp_Object
Fexpand_file_name (), Ffile_name_nondirectory ();
1618 extern Lisp_Object
Fsubstitute_in_file_name ();
1619 extern Lisp_Object
Ffile_symlink_p ();
1620 extern Lisp_Object
Fverify_visited_file_modtime ();
1621 extern Lisp_Object
Ffile_exists_p ();
1622 extern Lisp_Object
Ffile_name_absolute_p ();
1623 extern Lisp_Object
Fdirectory_file_name ();
1624 extern Lisp_Object
Ffile_name_directory ();
1625 extern Lisp_Object
expand_and_dir_to_file ();
1626 extern Lisp_Object
Ffile_accessible_directory_p ();
1627 extern Lisp_Object
Funhandled_file_name_directory ();
1628 extern Lisp_Object
Ffile_directory_p ();
1629 extern Lisp_Object
Fwrite_region ();
1631 /* Defined in abbrev.c */
1633 extern Lisp_Object Vfundamental_mode_abbrev_table
;
1635 /* defined in search.c */
1636 extern Lisp_Object
Fstring_match ();
1637 extern Lisp_Object
Fscan_buffer ();
1638 extern void restore_match_data ();
1639 extern Lisp_Object
Fmatch_data (), Fstore_match_data ();
1640 extern Lisp_Object
Fmatch_beginning (), Fmatch_end ();
1641 extern Lisp_Object
Fskip_chars_forward (), Fskip_chars_backward ();
1643 /* defined in minibuf.c */
1645 extern Lisp_Object last_minibuf_string
;
1646 extern Lisp_Object
read_minibuf (), Fcompleting_read ();
1647 extern Lisp_Object
Fread_from_minibuffer ();
1648 extern Lisp_Object
Fread_variable (), Fread_buffer (), Fread_key_sequence ();
1649 extern Lisp_Object
Fread_minibuffer (), Feval_minibuffer ();
1650 extern Lisp_Object
Fread_string (), Fread_file_name ();
1651 extern Lisp_Object
Fread_no_blanks_input ();
1652 extern Lisp_Object
get_minibuffer ();
1654 /* Defined in callint.c */
1656 extern Lisp_Object Qminus
, Qplus
, Vcurrent_prefix_arg
;
1657 extern Lisp_Object Vcommand_history
;
1658 extern Lisp_Object Qcall_interactively
, Qmouse_leave_buffer_hook
;
1659 extern Lisp_Object
Fcall_interactively ();
1660 extern Lisp_Object
Fprefix_numeric_value ();
1662 /* defined in casefiddle.c */
1664 extern Lisp_Object
Fdowncase (), Fupcase (), Fcapitalize ();
1665 extern Lisp_Object
Fupcase_region ();
1666 extern Lisp_Object
Fupcase_initials (), Fupcase_initials_region ();
1668 /* defined in casetab.c */
1670 extern Lisp_Object
Fset_case_table ();
1671 extern Lisp_Object
Fset_standard_case_table ();
1673 /* defined in keyboard.c */
1675 extern Lisp_Object Qdisabled
;
1676 extern Lisp_Object Vhelp_form
, Vtop_level
;
1677 extern Lisp_Object
Fdiscard_input (), Frecursive_edit ();
1678 extern Lisp_Object
Fcommand_execute (), Finput_pending_p ();
1679 extern Lisp_Object
menu_bar_items ();
1680 extern Lisp_Object Qvertical_scroll_bar
;
1681 extern Lisp_Object
Fevent_convert_list ();
1683 extern void delete_kboard ();
1686 /* defined in keymap.c */
1688 extern Lisp_Object Qkeymap
, Qmenu_bar
;
1689 extern Lisp_Object current_global_map
;
1690 extern Lisp_Object
Fdefine_key ();
1691 extern Lisp_Object
Fkey_description (), Fsingle_key_description ();
1692 extern Lisp_Object
Fwhere_is_internal ();
1693 extern Lisp_Object
access_keymap (), store_in_keymap ();
1694 extern Lisp_Object
get_keyelt (), get_keymap (), get_keymap_1 ();
1695 extern void describe_map_tree ();
1697 /* defined in indent.c */
1698 extern Lisp_Object
Fvertical_motion (), Findent_to (), Fcurrent_column ();
1700 /* defined in window.c */
1701 extern Lisp_Object Qwindowp
, Qwindow_live_p
;
1702 extern Lisp_Object
Fselected_window ();
1703 extern Lisp_Object
Fget_buffer_window ();
1704 extern Lisp_Object
Fsave_window_excursion ();
1705 extern Lisp_Object
Fset_window_configuration (), Fcurrent_window_configuration ();
1706 extern Lisp_Object
Fcoordinates_in_window_p ();
1707 extern Lisp_Object
Fwindow_at ();
1708 extern Lisp_Object
Fpos_visible_in_window_p ();
1709 extern int window_internal_height (), window_internal_width ();
1710 extern Lisp_Object
Frecenter ();
1711 extern Lisp_Object
Fscroll_other_window ();
1712 extern Lisp_Object
Fset_window_start ();
1714 /* defined in frame.c */
1715 extern Lisp_Object Qvisible
;
1716 extern void store_frame_param (), store_in_alist ();
1717 extern Lisp_Object
do_switch_frame ();
1718 extern Lisp_Object
get_frame_param();
1719 extern Lisp_Object
frame_buffer_predicate ();
1720 extern Lisp_Object
Fframep ();
1721 extern Lisp_Object
Fselect_frame ();
1722 extern Lisp_Object
Fselected_frame ();
1723 extern Lisp_Object
Fwindow_frame ();
1724 extern Lisp_Object
Fframe_root_window ();
1725 extern Lisp_Object
Fframe_first_window ();
1726 extern Lisp_Object
Fframe_selected_window ();
1727 extern Lisp_Object
Fframe_list ();
1728 extern Lisp_Object
Fnext_frame ();
1729 extern Lisp_Object
Fdelete_frame ();
1730 extern Lisp_Object
Fread_mouse_position ();
1731 extern Lisp_Object
Fset_mouse_position ();
1732 extern Lisp_Object
Fmake_frame_visible ();
1733 extern Lisp_Object
Fmake_frame_invisible ();
1734 extern Lisp_Object
Ficonify_frame ();
1735 extern Lisp_Object
Fdeiconify_frame ();
1736 extern Lisp_Object
Fframe_visible_p ();
1737 extern Lisp_Object
Fvisible_frame_list ();
1738 extern Lisp_Object
Fframe_parameters ();
1739 extern Lisp_Object
Fmodify_frame_parameters ();
1740 extern Lisp_Object
Fframe_pixel_size ();
1741 extern Lisp_Object
Fframe_height ();
1742 extern Lisp_Object
Fframe_width ();
1743 extern Lisp_Object
Fset_frame_height ();
1744 extern Lisp_Object
Fset_frame_width ();
1745 extern Lisp_Object
Fset_frame_size ();
1746 extern Lisp_Object
Fset_frame_position ();
1747 extern Lisp_Object
Fraise_frame ();
1748 extern Lisp_Object
Fredirect_frame_focus ();
1750 /* defined in emacs.c */
1751 extern Lisp_Object
decode_env_path ();
1752 extern Lisp_Object Vinvocation_name
, Vinvocation_directory
;
1753 extern Lisp_Object Vinstallation_directory
;
1754 void shut_down_emacs ( /* int signal, int no_x, Lisp_Object stuff */ );
1755 /* Nonzero means don't do interactive redisplay and don't change tty modes */
1756 extern int noninteractive
;
1757 /* Nonzero means don't do use window-system-specific display code */
1758 extern int inhibit_window_system
;
1759 /* Nonzero means that a filter or a sentinel is running. */
1760 extern int running_asynch_code
;
1762 /* defined in process.c */
1763 extern Lisp_Object
Fget_process (), Fget_buffer_process (), Fprocessp ();
1764 extern Lisp_Object
Fprocess_status (), Fkill_process ();
1765 extern Lisp_Object
Fprocess_send_eof ();
1766 extern Lisp_Object
Fwaiting_for_user_input_p ();
1767 extern Lisp_Object Qprocessp
;
1769 /* defined in callproc.c */
1770 extern Lisp_Object Vexec_path
, Vexec_directory
, Vdata_directory
;
1771 extern Lisp_Object Vdoc_directory
;
1773 /* defined in doc.c */
1774 extern Lisp_Object Vdoc_file_name
;
1775 extern Lisp_Object
Fsubstitute_command_keys ();
1776 extern Lisp_Object
Fdocumentation (), Fdocumentation_property ();
1777 extern Lisp_Object
read_doc_string ();
1779 /* defined in bytecode.c */
1780 extern Lisp_Object Qbytecode
;
1781 extern Lisp_Object
Fbyte_code ();
1783 /* defined in macros.c */
1784 extern Lisp_Object Qexecute_kbd_macro
;
1785 extern Lisp_Object
Fexecute_kbd_macro ();
1787 /* defined in undo.c */
1788 extern Lisp_Object Qinhibit_read_only
;
1789 extern Lisp_Object
Fundo_boundary ();
1790 extern Lisp_Object
truncate_undo_list ();
1792 /* defined in textprop.c */
1793 extern Lisp_Object Qmodification_hooks
;
1794 extern Lisp_Object Qrear_nonsticky
, Qfont
;
1795 extern Lisp_Object Qinsert_in_front_hooks
, Qinsert_behind_hooks
;
1796 extern Lisp_Object
Fnext_property_change ();
1797 extern Lisp_Object
Fnext_single_property_change ();
1798 extern Lisp_Object
Fprevious_single_property_change ();
1799 extern Lisp_Object
Fget_text_property (), Fput_text_property ();
1800 extern Lisp_Object
Fset_text_properties ();
1801 extern Lisp_Object
Ftext_property_not_all ();
1803 /* defined in intervals.c */
1804 extern Lisp_Object
get_local_map ();
1806 /* defined in xmenu.c */
1807 extern Lisp_Object
Fx_popup_menu (), Fx_popup_dialog ();
1809 /* Nonzero means Emacs has already been initialized.
1810 Used during startup to detect startup of dumped Emacs. */
1811 extern int initialized
;
1813 extern int immediate_quit
; /* Nonzero means ^G can quit instantly */
1815 extern void debugger ();
1817 extern char *getenv (), *ctime (), *getwd ();
1818 extern long *xmalloc (), *xrealloc ();
1819 extern void xfree ();
1821 extern char *egetenv ();
1823 /* Set up the name of the machine we're running on. */
1824 extern void init_system_name ();
1826 /* Some systems (e.g., NT) use a different path separator than Unix,
1827 in addition to a device separator. Default the path separator
1828 to '/', and don't test for a device separator in IS_ANY_SEP. */
1831 extern Lisp_Object Vdirectory_sep_char
;
1834 #ifndef DIRECTORY_SEP
1835 #define DIRECTORY_SEP '/'
1837 #ifndef IS_DIRECTORY_SEP
1838 #define IS_DIRECTORY_SEP(_c_) ((_c_) == DIRECTORY_SEP)
1840 #ifndef IS_DEVICE_SEP
1842 #define IS_DEVICE_SEP(_c_) 0
1844 #define IS_DEVICE_SEP(_c_) ((_c_) == DEVICE_SEP)
1848 #define IS_ANY_SEP(_c_) (IS_DIRECTORY_SEP (_c_))
1851 #ifdef SWITCH_ENUM_BUG
1852 #define SWITCH_ENUM_CAST(x) ((int)(x))
1854 #define SWITCH_ENUM_CAST(x) (x)