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, 675 Mass Ave, Cambridge, MA 02139, USA. */
21 /* These are default choices for the types to use. */
26 #define EMACS_UINT unsigned int
29 /* Define the fundamental Lisp data structures. */
31 /* This is the set of Lisp data types. */
35 /* Integer. XINT (obj) is the integer value. */
38 /* Symbol. XSYMBOL (object) points to a struct Lisp_Symbol. */
41 /* Miscellaneous. XMISC (object) points to a union Lisp_Misc,
42 whose first member indicates the subtype. */
45 /* String. XSTRING (object) points to a struct Lisp_String.
46 The length of the string, and its contents, are stored therein. */
49 /* Vector of Lisp objects, or something resembling it.
50 XVECTOR (object) points to a struct Lisp_Vector, which contains
51 the size and contents. The size field also contains the type
52 information, if it's not a real vector object. */
55 /* Cons. XCONS (object) points to a struct Lisp_Cons. */
58 #ifdef LISP_FLOAT_TYPE
60 #endif /* LISP_FLOAT_TYPE */
62 /* This is not a type code. It is for range checking. */
66 /* This is the set of datatypes that share a common structure.
67 The first member of the structure is a type code from this set.
68 The enum values are arbitrary, but we'll use large numbers to make it
69 more likely that we'll spot the error if a random word in memory is
70 mistakenly interpreted as a Lisp_Misc. */
73 Lisp_Misc_Free
= 0x5eab,
78 Lisp_Misc_Buffer_Objfwd
,
79 Lisp_Misc_Buffer_Local_Value
,
80 Lisp_Misc_Some_Buffer_Local_Value
,
82 Lisp_Misc_Kboard_Objfwd
,
83 /* Currently floats are not a misc type,
84 but let's define this in case we want to change that. */
86 /* This is not a type code. It is for range checking. */
90 /* These values are overridden by the m- file on some machines. */
101 #ifndef WORDS_BIG_ENDIAN
103 /* Definition of Lisp_Object for little-endian machines. */
108 /* Used for comparing two Lisp_Objects;
109 also, positive integers can be accessed fast this way. */
115 int type
: GCTYPEBITS
+1;
119 unsigned int val
: VALBITS
;
120 int type
: GCTYPEBITS
+1;
124 unsigned int val
: VALBITS
;
125 enum Lisp_Type type
: GCTYPEBITS
;
126 /* The markbit is not really part of the value of a Lisp_Object,
127 and is always zero except during garbage collection. */
128 unsigned int markbit
: 1;
133 #else /* If WORDS_BIG_ENDIAN */
138 /* Used for comparing two Lisp_Objects;
139 also, positive integers can be accessed fast this way. */
144 int type
: GCTYPEBITS
+1;
149 int type
: GCTYPEBITS
+1;
150 unsigned int val
: VALBITS
;
154 /* The markbit is not really part of the value of a Lisp_Object,
155 and is always zero except during garbage collection. */
156 unsigned int markbit
: 1;
157 enum Lisp_Type type
: GCTYPEBITS
;
158 unsigned int val
: VALBITS
;
163 #endif /* WORDS_BIG_ENDIAN */
165 #endif /* NO_UNION_TYPE */
168 /* If union type is not wanted, define Lisp_Object as just a number
169 and define the macros below to extract fields by shifting */
173 #define Lisp_Object EMACS_INT
176 #define VALMASK ((((EMACS_INT) 1)<<VALBITS) - 1)
178 #define GCTYPEMASK ((((EMACS_INT) 1)<<GCTYPEBITS) - 1)
180 /* Two flags that are set during GC. On some machines, these flags
181 are defined differently by the m- file. */
183 /* This is set in the car of a cons and in the plist slot of a symbol
184 to indicate it is marked. Likewise in the plist slot of an interval,
185 the chain slot of a marker, the type slot of a float, and the name
188 In strings, this bit in the size field indicates that the string
189 is a "large" one, one which was separately malloc'd
190 rather than being part of a string block. */
193 #define MARKBIT (1 << (VALBITS + GCTYPEBITS))
196 /* In the size word of a vector, this bit means the vector has been marked.
197 In the size word of a large string, likewise. */
199 #ifndef ARRAY_MARK_FLAG
200 #define ARRAY_MARK_FLAG ((MARKBIT >> 1) & ~MARKBIT)
201 #endif /* no ARRAY_MARK_FLAG */
203 /* In the size word of a struct Lisp_Vector, this bit means it's really
204 some other vector-like object. */
205 #ifndef PSEUDOVECTOR_FLAG
206 #define PSEUDOVECTOR_FLAG ((ARRAY_MARK_FLAG >> 1) & ~ARRAY_MARK_FLAG)
209 /* In a pseudovector, the size field actually contains a word with one
210 PSEUDOVECTOR_FLAG bit set, and exactly one of the following bits to
211 indicate the actual type. */
214 PVEC_NORMAL_VECTOR
= 0,
216 PVEC_PROCESS
= 0x200,
218 PVEC_COMPILED
= 0x800,
219 PVEC_WINDOW
= 0x1000,
220 PVEC_WINDOW_CONFIGURATION
= 0x2000,
222 PVEC_TYPE_MASK
= 0x7f00,
223 PVEC_FLAG
= PSEUDOVECTOR_FLAG
,
226 /* For convenience, we also store the number of elements in these bits. */
227 #define PSEUDOVECTOR_SIZE_MASK 0xff
229 #if ARRAY_MARK_FLAG == MARKBIT || PSEUDOVECTOR_FLAG == ARRAY_MARK_FLAG || PSEUDOVECTOR_FLAG == MARKBIT
233 #endif /* NO_UNION_TYPE */
235 /* These macros extract various sorts of values from a Lisp_Object.
236 For example, if tem is a Lisp_Object whose type is Lisp_Cons,
237 XCONS (tem) is the struct Lisp_Cons * pointing to the memory for that cons. */
241 /* One need to override this if there must be high bits set in data space
242 (doing the result of the below & ((1 << (GCTYPE + 1)) - 1) would work
243 on all machines, but would penalise machines which don't need it)
246 #define XTYPE(a) ((enum Lisp_Type) ((a) >> VALBITS))
250 #define XSETTYPE(a, b) ((a) = XUINT (a) | ((EMACS_INT)(b) << VALBITS))
253 /* For integers known to be positive, XFASTINT provides fast retrieval
254 and XSETFASTINT provides fast storage. This takes advantage of the
255 fact that Lisp_Int is 0. */
256 #define XFASTINT(a) ((a) + 0)
257 #define XSETFASTINT(a, b) ((a) = (b))
259 /* Extract the value of a Lisp_Object as a signed integer. */
261 #ifndef XINT /* Some machines need to do this differently. */
262 #define XINT(a) (((a) << (INTBITS-VALBITS)) >> (INTBITS-VALBITS))
265 /* Extract the value as an unsigned integer. This is a basis
266 for extracting it as a pointer to a structure in storage. */
269 #define XUINT(a) ((a) & VALMASK)
274 /* In this representation, data is found in two widely separated segments. */
275 extern int pure_size
;
277 (XUINT (a) | (XUINT (a) > pure_size ? DATA_SEG_BITS : PURE_SEG_BITS))
278 #else /* not HAVE_SHM */
280 /* This case is used for the rt-pc.
281 In the diffs I was given, it checked for ptr = 0
282 and did not adjust it in that case.
283 But I don't think that zero should ever be found
284 in a Lisp object whose data type says it points to something. */
285 #define XPNTR(a) (XUINT (a) | DATA_SEG_BITS)
287 #define XPNTR(a) XUINT (a)
289 #endif /* not HAVE_SHM */
290 #endif /* no XPNTR */
293 #define XSET(var, type, ptr) \
294 ((var) = ((EMACS_INT)(type) << VALBITS) + ((EMACS_INT) (ptr) & VALMASK))
297 /* During garbage collection, XGCTYPE must be used for extracting types
298 so that the mark bit is ignored. XMARKBIT accesses the markbit.
299 Markbits are used only in particular slots of particular structure types.
300 Other markbits are always zero.
301 Outside of garbage collection, all mark bits are always zero. */
304 #define XGCTYPE(a) ((enum Lisp_Type) (((a) >> VALBITS) & GCTYPEMASK))
307 #if VALBITS + GCTYPEBITS == INTBITS - 1
308 /* Make XMARKBIT faster if mark bit is sign bit. */
310 #define XMARKBIT(a) ((a) < 0)
312 #endif /* markbit is sign bit */
315 #define XMARKBIT(a) ((a) & MARKBIT)
319 #define XSETMARKBIT(a,b) ((a) = ((a) & ~MARKBIT) | ((b) ? MARKBIT : 0))
323 #define XMARK(a) ((a) |= MARKBIT)
327 #define XUNMARK(a) ((a) &= ~MARKBIT)
330 #endif /* NO_UNION_TYPE */
332 #ifndef NO_UNION_TYPE
334 #define XTYPE(a) ((enum Lisp_Type) (a).u.type)
335 #define XSETTYPE(a, b) ((a).u.type = (char) (b))
337 /* For integers known to be positive, XFASTINT provides fast retrieval
338 and XSETFASTINT provides fast storage. This takes advantage of the
339 fact that Lisp_Int is 0. */
340 #define XFASTINT(a) ((a).i + 0)
341 #define XSETFASTINT(a, b) ((a).i = (b))
343 #ifdef EXPLICIT_SIGN_EXTEND
344 /* Make sure we sign-extend; compilers have been known to fail to do so. */
345 #define XINT(a) (((a).i << (INTBITS-VALBITS)) >> (INTBITS-VALBITS))
347 #define XINT(a) ((a).s.val)
348 #endif /* EXPLICIT_SIGN_EXTEND */
350 #define XUINT(a) ((a).u.val)
351 #define XPNTR(a) ((a).u.val)
353 #define XSET(var, vartype, ptr) \
354 (((var).s.type = ((char) (vartype))), ((var).s.val = ((int) (ptr))))
356 /* During garbage collection, XGCTYPE must be used for extracting types
357 so that the mark bit is ignored. XMARKBIT access the markbit.
358 Markbits are used only in particular slots of particular structure types.
359 Other markbits are always zero.
360 Outside of garbage collection, all mark bits are always zero. */
362 #define XGCTYPE(a) ((a).gu.type)
363 #define XMARKBIT(a) ((a).gu.markbit)
364 #define XSETMARKBIT(a,b) (XMARKBIT(a) = (b))
365 #define XMARK(a) (XMARKBIT(a) = 1)
366 #define XUNMARK(a) (XMARKBIT(a) = 0)
368 #endif /* NO_UNION_TYPE */
370 /* Extract a value or address from a Lisp_Object. */
372 #define XCONS(a) ((struct Lisp_Cons *) XPNTR(a))
373 #define XVECTOR(a) ((struct Lisp_Vector *) XPNTR(a))
374 #define XSTRING(a) ((struct Lisp_String *) XPNTR(a))
375 #define XSYMBOL(a) ((struct Lisp_Symbol *) XPNTR(a))
376 #define XFLOAT(a) ((struct Lisp_Float *) XPNTR(a))
379 #define XMISC(a) ((union Lisp_Misc *) XPNTR(a))
380 #define XMARKER(a) (&(XMISC(a)->u_marker))
381 #define XINTFWD(a) (&(XMISC(a)->u_intfwd))
382 #define XBOOLFWD(a) (&(XMISC(a)->u_boolfwd))
383 #define XOBJFWD(a) (&(XMISC(a)->u_objfwd))
384 #define XBUFFER_OBJFWD(a) (&(XMISC(a)->u_buffer_objfwd))
385 #define XBUFFER_LOCAL_VALUE(a) (&(XMISC(a)->u_buffer_local_value))
386 #define XOVERLAY(a) (&(XMISC(a)->u_overlay))
387 #define XKBOARD_OBJFWD(a) (&(XMISC(a)->u_kboard_objfwd))
389 /* Pseudovector types. */
390 #define XPROCESS(a) ((struct Lisp_Process *) XPNTR(a))
391 #define XWINDOW(a) ((struct window *) XPNTR(a))
392 #define XSUBR(a) ((struct Lisp_Subr *) XPNTR(a))
393 #define XBUFFER(a) ((struct buffer *) XPNTR(a))
396 /* Construct a Lisp_Object from a value or address. */
398 #define XSETINT(a, b) XSET (a, Lisp_Int, b)
399 #define XSETCONS(a, b) XSET (a, Lisp_Cons, b)
400 #define XSETVECTOR(a, b) XSET (a, Lisp_Vectorlike, b)
401 #define XSETSTRING(a, b) XSET (a, Lisp_String, b)
402 #define XSETSYMBOL(a, b) XSET (a, Lisp_Symbol, b)
403 #define XSETFLOAT(a, b) XSET (a, Lisp_Float, b)
406 #define XSETMISC(a, b) XSET (a, Lisp_Misc, b)
407 #define XSETMARKER(a, b) (XSETMISC (a, b), XMISC (a)->type = Lisp_Misc_Marker)
409 /* Pseudovector types. */
410 #define XSETPSEUDOVECTOR(a, b, code) \
411 (XSETVECTOR (a, b), XVECTOR (a)->size |= PSEUDOVECTOR_FLAG | (code))
412 #define XSETWINDOW_CONFIGURATION(a, b) \
413 (XSETPSEUDOVECTOR (a, b, PVEC_WINDOW_CONFIGURATION))
414 #define XSETPROCESS(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_PROCESS))
415 #define XSETWINDOW(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_WINDOW))
416 #define XSETSUBR(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_SUBR))
417 #define XSETCOMPILED(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_COMPILED))
418 #define XSETBUFFER(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_BUFFER))
420 #ifdef USE_TEXT_PROPERTIES
421 /* Basic data type for use of intervals. See the macros in intervals.h. */
425 /* The first group of entries deal with the tree structure. */
427 unsigned int total_length
; /* Length of myself and both children. */
428 unsigned int position
; /* Cache of interval's character position. */
429 struct interval
*left
; /* Intervals which precede me. */
430 struct interval
*right
; /* Intervals which succeed me. */
432 /* Parent in the tree, or the Lisp_Object containing this interval tree.
434 The mark bit on the root interval of an interval tree says
435 whether we have started (and possibly finished) marking the
436 tree. If GC comes across an interval tree whose root's parent
437 field has its markbit set, it leaves the tree alone.
439 You'd think we could store this information in the parent object
440 somewhere (after all, that should be visited once and then
441 ignored too, right?), but strings are GC'd strangely. */
442 struct interval
*parent
;
444 /* The remaining components are `properties' of the interval.
445 The first four are duplicates for things which can be on the list,
446 for purposes of speed. */
448 unsigned char write_protect
; /* Non-zero means can't modify. */
449 unsigned char visible
; /* Zero means don't display. */
450 unsigned char front_sticky
; /* Non-zero means text inserted just
451 before this interval goes into it. */
452 unsigned char rear_sticky
; /* Likewise for just after it. */
454 /* Properties of this interval.
455 The mark bit on this field says whether this particular interval
456 tree node has been visited. Since intervals should never be
457 shared, GC aborts if it seems to have visited an interval twice. */
461 typedef struct interval
*INTERVAL
;
463 /* Complain if object is not string or buffer type */
464 #define CHECK_STRING_OR_BUFFER(x, i) \
465 { if (!STRINGP ((x)) && !BUFFERP ((x))) \
466 x = wrong_type_argument (Qbuffer_or_string_p, (x)); }
468 /* Macro used to conditionally compile intervals into certain data
469 structures. See, e.g., struct Lisp_String below. */
470 #define DECLARE_INTERVALS INTERVAL intervals;
472 /* Macro used to conditionally compile interval initialization into
473 certain code. See, e.g., alloc.c. */
474 #define INITIALIZE_INTERVAL(ptr,val) ptr->intervals = val
476 #else /* No text properties */
478 /* If no intervals are used, make the above definitions go away. */
480 #define CHECK_STRING_OR_BUFFER(x, i)
483 #define DECLARE_INTERVALS
484 #define INITIALIZE_INTERVAL(ptr,val)
486 #endif /* USE_TEXT_PROPERTIES */
488 #define ECHOBUFSIZE 300
489 /* When more than one keyboard is in use (via make-frame-on-display),
490 each will have a separate instance of this structure. */
491 typedef struct KBOARD KBOARD
;
496 /* The state of a prefix arg. */
497 Lisp_Object prefix_factor
, prefix_value
;
498 int prefix_sign
, prefix_partial
;
500 /* Unread events specific to this kboard. */
501 Lisp_Object kbd_queue
;
503 /* Non-nil while a kbd macro is being defined. */
504 Lisp_Object defining_kbd_macro
;
506 /* The start of storage for the current keyboard macro. */
507 Lisp_Object
*kbd_macro_buffer
;
509 /* Where to store the next keystroke of the macro. */
510 Lisp_Object
*kbd_macro_ptr
;
512 /* The finalized section of the macro starts at kbd_macro_buffer and
513 ends before this. This is not the same as kbd_macro_ptr, because
514 we advance this to kbd_macro_ptr when a key's command is complete.
515 This way, the keystrokes for "end-kbd-macro" are not included in the
517 Lisp_Object
*kbd_macro_end
;
519 /* Allocated size of kbd_macro_buffer. */
520 int kbd_macro_bufsize
;
522 /* Last anonymous kbd macro defined. */
523 Lisp_Object Vlast_kbd_macro
;
525 /* Flag indicating that we should look at kbd_queue. This is not the
526 same as !NILP (kbd_queue), because if we've had to push back an
527 incomplete command, then this flag will be clear; we don't want to
528 try reading it again until another character arrives. */
529 int kbd_queue_has_data
;
531 /* Placeholder for future vars that will be moved here. */
532 Lisp_Object unused
[17];
534 /* This is normally 1, but can be larger if you have multiple screens
535 on a single X display. */
538 /* Nonzero means echo each character as typed. */
541 /* If we have echoed a prompt string specified by the user,
542 this is its length. Otherwise this is -1. */
543 int echo_after_prompt
;
545 /* Where to append more text to echobuf if we want to. */
548 /* The text we're echoing in the modeline - partial key sequences,
549 usually. '\0'-terminated. This really shouldn't have a fixed size. */
550 char echobuf
[ECHOBUFSIZE
];
554 /* Temporarily used before a frame has been opened, and for termcap frames */
555 extern KBOARD
*initial_kboard
;
557 /* The kboard object associated with the command currently being read
559 extern KBOARD
*current_kboard
;
561 /* A list of all kboard objects, linked through next_kboard. */
562 extern KBOARD
*all_kboards
;
564 /* Nonzero if current_kboard has exclusive use of the keyboard.
565 Usually this means that a command is being executed. */
566 extern int kboard_locked
;
568 extern KBOARD the_only_kboard
;
569 #define current_kboard (&the_only_kboard)
570 #define all_kboards (&the_only_kboard)
571 #define kboard_locked 1
574 /* In a cons, the markbit of the car is the gc mark bit */
578 Lisp_Object car
, cdr
;
581 /* Like a cons, but records info on where the text lives that it was read from */
582 /* This is not really in use now */
584 struct Lisp_Buffer_Cons
586 Lisp_Object car
, cdr
;
587 struct buffer
*buffer
;
591 /* In a string or vector, the sign bit of the `size' is the gc mark bit */
596 DECLARE_INTERVALS
/* `data' field must be last. */
597 unsigned char data
[1];
600 /* If a struct is made to look like a vector, this macro returns the length
602 #define VECSIZE(type) ((sizeof (type) - (sizeof (struct Lisp_Vector) \
603 - sizeof (Lisp_Object))) \
604 / sizeof (Lisp_Object))
609 struct Lisp_Vector
*next
;
610 Lisp_Object contents
[1];
613 /* In a symbol, the markbit of the plist is used as the gc mark bit */
617 struct Lisp_String
*name
;
619 Lisp_Object function
;
621 struct Lisp_Symbol
*next
; /* -> next symbol in this obarray bucket */
624 /* This structure describes a built-in function.
625 It is generated by the DEFUN macro only.
626 defsubr makes it into a Lisp object.
628 This type is treated in most respects as a pseudovector,
629 but since we never dynamically allocate or free them,
630 we don't need a next-vector field. */
635 Lisp_Object (*function
) ();
636 short min_args
, max_args
;
642 /* These structures are used for various misc types. */
644 /* A miscellaneous object, when it's on the free list. */
647 int type
: 16; /* = Lisp_Misc_Free */
649 union Lisp_Misc
*chain
;
652 /* In a marker, the markbit of the chain field is used as the gc mark bit */
655 int type
: 16; /* = Lisp_Misc_Marker */
657 /* 1 means normal insertion at the marker's position
658 leaves the marker after the inserted text. */
659 int insertion_type
: 1;
660 struct buffer
*buffer
;
665 /* Forwarding pointer to an int variable.
666 This is allowed only in the value cell of a symbol,
667 and it means that the symbol's value really lives in the
668 specified int variable. */
671 int type
: 16; /* = Lisp_Misc_Intfwd */
676 /* Boolean forwarding pointer to an int variable.
677 This is like Lisp_Intfwd except that the ostensible
678 "value" of the symbol is t if the int variable is nonzero,
679 nil if it is zero. */
682 int type
: 16; /* = Lisp_Misc_Boolfwd */
687 /* Forwarding pointer to a Lisp_Object variable.
688 This is allowed only in the value cell of a symbol,
689 and it means that the symbol's value really lives in the
690 specified variable. */
693 int type
: 16; /* = Lisp_Misc_Objfwd */
698 /* Like Lisp_Objfwd except that value lives in a slot in the
699 current buffer. Value is byte index of slot within buffer. */
700 struct Lisp_Buffer_Objfwd
702 int type
: 16; /* = Lisp_Misc_Buffer_Objfwd */
707 /* Used in a symbol value cell when the symbol's value is per-buffer.
708 The actual contents resemble a cons cell which starts a list like this:
709 (REALVALUE BUFFER CURRENT-ALIST-ELEMENT . DEFAULT-VALUE).
711 The cons-like structure is for historical reasons; it might be better
712 to just put these elements into the struct, now.
714 BUFFER is the last buffer for which this symbol's value was
717 CURRENT-ALIST-ELEMENT is a pointer to an element of BUFFER's
718 local_var_alist, that being the element whose car is this
719 variable. Or it can be a pointer to the
720 (CURRENT-ALIST-ELEMENT . DEFAULT-VALUE),
721 if BUFFER does not have an element in its alist for this
722 variable (that is, if BUFFER sees the default value of this
725 If we want to examine or set the value and BUFFER is current,
726 we just examine or set REALVALUE. If BUFFER is not current, we
727 store the current REALVALUE value into CURRENT-ALIST-ELEMENT,
728 then find the appropriate alist element for the buffer now
729 current and set up CURRENT-ALIST-ELEMENT. Then we set
730 REALVALUE out of that element, and store into BUFFER.
732 If we are setting the variable and the current buffer does not
733 have an alist entry for this variable, an alist entry is
736 Note that REALVALUE can be a forwarding pointer. Each time it
737 is examined or set, forwarding must be done. Each time we
738 switch buffers, buffer-local variables which forward into C
739 variables are swapped immediately, so the C code can assume
740 that they are always up to date.
742 Lisp_Misc_Buffer_Local_Value and Lisp_Misc_Some_Buffer_Local_Value
743 use the same substructure. The difference is that with the latter,
744 merely setting the variable while some buffer is current
745 does not cause that buffer to have its own local value of this variable.
746 Only make-local-variable does that. */
747 struct Lisp_Buffer_Local_Value
749 int type
: 16; /* = Lisp_Misc_Buffer_Local_Value
750 or Lisp_Misc_Some_Buffer_Local_Value */
752 Lisp_Object car
, cdr
;
755 /* In an overlay object, the mark bit of the plist is used as the GC mark.
756 START and END are markers in the overlay's buffer, and
757 PLIST is the overlay's property list. */
760 int type
: 16; /* = Lisp_Misc_Overlay */
762 Lisp_Object start
, end
, plist
;
765 /* Like Lisp_Objfwd except that value lives in a slot in the
767 struct Lisp_Kboard_Objfwd
769 int type
: 16; /* = Lisp_Misc_Kboard_Objfwd */
778 struct Lisp_Free u_free
;
779 struct Lisp_Marker u_marker
;
780 struct Lisp_Intfwd u_intfwd
;
781 struct Lisp_Boolfwd u_boolfwd
;
782 struct Lisp_Objfwd u_objfwd
;
783 struct Lisp_Buffer_Objfwd u_buffer_objfwd
;
784 struct Lisp_Buffer_Local_Value u_buffer_local_value
;
785 struct Lisp_Overlay u_overlay
;
786 struct Lisp_Kboard_Objfwd u_kboard_objfwd
;
789 #ifdef LISP_FLOAT_TYPE
790 /* Optional Lisp floating point type */
793 Lisp_Object type
; /* essentially used for mark-bit
794 and chaining when on free-list */
797 #endif /* LISP_FLOAT_TYPE */
799 /* A character, declared with the following typedef, is a member
800 of some character set associated with the current buffer. */
801 #ifndef _UCHAR_T /* Protect against something in ctab.h on AIX. */
803 typedef unsigned char UCHAR
;
806 /* Meanings of slots in a Lisp_Compiled: */
808 #define COMPILED_ARGLIST 0
809 #define COMPILED_BYTECODE 1
810 #define COMPILED_CONSTANTS 2
811 #define COMPILED_STACK_DEPTH 3
812 #define COMPILED_DOC_STRING 4
813 #define COMPILED_INTERACTIVE 5
815 /* Flag bits in a character. These also get used in termhooks.h.
816 Richard Stallman <rms@gnu.ai.mit.edu> thinks that MULE
817 (MUlti-Lingual Emacs) might need 22 bits for the character value
818 itself, so we probably shouldn't use any bits lower than 0x0400000. */
819 #define CHAR_ALT (0x0400000)
820 #define CHAR_SUPER (0x0800000)
821 #define CHAR_HYPER (0x1000000)
822 #define CHAR_SHIFT (0x2000000)
823 #define CHAR_CTL (0x4000000)
824 #define CHAR_META (0x8000000)
828 /* Use this for turning a (void *) into a Lisp_Object, as when the
829 Lisp_Object is passed into a toolkit callback function. */
830 #define VOID_TO_LISP(larg,varg) \
831 do { ((larg) = ((Lisp_Object) (varg))); } while (0)
832 #define CVOID_TO_LISP VOID_TO_LISP
834 /* Use this for turning a Lisp_Object into a (void *), as when the
835 Lisp_Object is passed into a toolkit callback function. */
836 #define LISP_TO_VOID(larg) ((void *) (larg))
837 #define LISP_TO_CVOID(varg) ((const void *) (larg))
839 #else /* not NO_UNION_TYPE */
840 /* Use this for turning a (void *) into a Lisp_Object, as when the
841 Lisp_Object is passed into a toolkit callback function. */
842 #define VOID_TO_LISP(larg,varg) \
843 do { ((larg).v = (void *) (varg)); } while (0)
844 #define CVOID_TO_LISP(larg,varg) \
845 do { ((larg).cv = (const void *) (varg)); } while (0)
847 /* Use this for turning a Lisp_Object into a (void *), as when the
848 Lisp_Object is passed into a toolkit callback function. */
849 #define LISP_TO_VOID(larg) ((larg).v)
850 #define LISP_TO_CVOID(larg) ((larg).cv)
851 #endif /* not NO_UNION_TYPE */
852 #endif /* USE_X_TOOLKIT */
855 /* The glyph datatype, used to represent characters on the display. */
857 /* The low eight bits are the character code, and the bits above them
858 are the numeric face ID. If FID is the face ID of a glyph on a
859 frame F, then F->display.x->faces[FID] contains the description of
860 that face. This is an int instead of a short, so we can support a
861 good bunch of face ID's; given that we have no mechanism for
862 tossing unused frame face ID's yet, we'll probably run out of 255
864 #define GLYPH unsigned int
867 /* The FAST macros assume that we already know we're in an X window. */
869 /* Given a character code and a face ID, return the appropriate glyph. */
870 #define FAST_MAKE_GLYPH(char, face) ((char) | ((face) << 8))
872 /* Return a glyph's character code. */
873 #define FAST_GLYPH_CHAR(glyph) ((glyph) & 0xff)
875 /* Return a glyph's face ID. */
876 #define FAST_GLYPH_FACE(glyph) (((glyph) >> 8) & ((1 << 24) - 1))
878 /* Slower versions that test the frame type first. */
879 #define MAKE_GLYPH(f, char, face) (FRAME_TERMCAP_P (f) ? (char) \
880 : FAST_MAKE_GLYPH (char, face))
881 #define GLYPH_CHAR(f, g) (FRAME_TERMCAP_P (f) ? (g) : FAST_GLYPH_CHAR (g))
882 #define GLYPH_FACE(f, g) (FRAME_TERMCAP_P (f) ? (0) : FAST_GLYPH_FACE (g))
883 #else /* not HAVE_FACES */
884 #define MAKE_GLYPH(f, char, face) (char)
885 #define GLYPH_CHAR(f, g) (g)
886 #define GLYPH_FACE(f, g) (g)
887 #endif /* not HAVE_FACES */
889 /* The ID of the mode line highlighting face. */
890 #define GLYPH_MODE_LINE_FACE 1
892 /* Data type checking */
894 #define NILP(x) (XFASTINT (x) == XFASTINT (Qnil))
895 #define GC_NILP(x) GC_EQ (x, Qnil)
897 #ifdef LISP_FLOAT_TYPE
898 #define NUMBERP(x) (INTEGERP (x) || FLOATP (x))
899 #define GC_NUMBERP(x) (GC_INTEGERP (x) || GC_FLOATP (x))
901 #define NUMBERP(x) (INTEGERP (x))
902 #define GC_NUMBERP(x) (GC_INTEGERP (x))
904 #define NATNUMP(x) (INTEGERP (x) && XINT (x) >= 0)
905 #define GC_NATNUMP(x) (GC_INTEGERP (x) && XINT (x) >= 0)
907 #define INTEGERP(x) (XTYPE ((x)) == Lisp_Int)
908 #define GC_INTEGERP(x) (XGCTYPE ((x)) == Lisp_Int)
909 #define SYMBOLP(x) (XTYPE ((x)) == Lisp_Symbol)
910 #define GC_SYMBOLP(x) (XGCTYPE ((x)) == Lisp_Symbol)
911 #define MISCP(x) (XTYPE ((x)) == Lisp_Misc)
912 #define GC_MISCP(x) (XGCTYPE ((x)) == Lisp_Misc)
913 #define VECTORLIKEP(x) (XTYPE ((x)) == Lisp_Vectorlike)
914 #define GC_VECTORLIKEP(x) (XGCTYPE ((x)) == Lisp_Vectorlike)
915 #define STRINGP(x) (XTYPE ((x)) == Lisp_String)
916 #define GC_STRINGP(x) (XGCTYPE ((x)) == Lisp_String)
917 #define CONSP(x) (XTYPE ((x)) == Lisp_Cons)
918 #define GC_CONSP(x) (XGCTYPE ((x)) == Lisp_Cons)
920 #ifdef LISP_FLOAT_TYPE
921 #define FLOATP(x) (XTYPE ((x)) == Lisp_Float)
922 #define GC_FLOATP(x) (XGCTYPE ((x)) == Lisp_Float)
924 #define FLOATP(x) (0)
925 #define GC_FLOATP(x) (0)
927 #define VECTORP(x) (VECTORLIKEP (x) && !(XVECTOR (x)->size & PSEUDOVECTOR_FLAG))
928 #define GC_VECTORP(x) (GC_VECTORLIKEP (x) && !(XVECTOR (x)->size & PSEUDOVECTOR_FLAG))
929 #define OVERLAYP(x) (MISCP (x) && XMISC (x)->type == Lisp_Misc_Overlay)
930 #define GC_OVERLAYP(x) (GC_MISCP (x) && XMISC (x)->type == Lisp_Misc_Overlay)
931 #define MARKERP(x) (MISCP (x) && XMISC (x)->type == Lisp_Misc_Marker)
932 #define GC_MARKERP(x) (GC_MISCP (x) && XMISC (x)->type == Lisp_Misc_Marker)
933 #define INTFWDP(x) (MISCP (x) && XMISC (x)->type == Lisp_Misc_Intfwd)
934 #define GC_INTFWDP(x) (GC_MISCP (x) && XMISC (x)->type == Lisp_Misc_Intfwd)
935 #define BOOLFWDP(x) (MISCP (x) && XMISC (x)->type == Lisp_Misc_Boolfwd)
936 #define GC_BOOLFWDP(x) (GC_MISCP (x) && XMISC (x)->type == Lisp_Misc_Boolfwd)
937 #define OBJFWDP(x) (MISCP (x) && XMISC (x)->type == Lisp_Misc_Objfwd)
938 #define GC_OBJFWDP(x) (GC_MISCP (x) && XMISC (x)->type == Lisp_Misc_Objfwd)
939 #define BUFFER_OBJFWDP(x) (MISCP (x) && XMISC (x)->type == Lisp_Misc_Buffer_Objfwd)
940 #define GC_BUFFER_OBJFWDP(x) (GC_MISCP (x) && XMISC (x)->type == Lisp_Misc_Buffer_Objfwd)
941 #define BUFFER_LOCAL_VALUEP(x) (MISCP (x) && XMISC (x)->type == Lisp_Misc_Buffer_Local_Value)
942 #define GC_BUFFER_LOCAL_VALUEP(x) (GC_MISCP (x) && XMISC (x)->type == Lisp_Misc_Buffer_Local_Value)
943 #define SOME_BUFFER_LOCAL_VALUEP(x) (MISCP (x) && XMISC (x)->type == Lisp_Misc_Some_Buffer_Local_Value)
944 #define GC_SOME_BUFFER_LOCAL_VALUEP(x) (GC_MISCP (x) && XMISC (x)->type == Lisp_Misc_Some_Buffer_Local_Value)
945 #define KBOARD_OBJFWDP(x) (MISCP (x) && XMISC (x)->type == Lisp_Misc_Kboard_Objfwd)
946 #define GC_KBOARD_OBJFWDP(x) (GC_MISCP (x) && XMISC (x)->type == Lisp_Misc_Kboard_Objfwd)
949 /* True if object X is a pseudovector whose code is CODE. */
950 #define PSEUDOVECTORP(x, code) \
952 && (((XVECTOR (x)->size & (PSEUDOVECTOR_FLAG | (code)))) \
953 == (PSEUDOVECTOR_FLAG | (code))))
955 /* True if object X is a pseudovector whose code is CODE.
956 This one works during GC. */
957 #define GC_PSEUDOVECTORP(x, code) \
958 (GC_VECTORLIKEP (x) \
959 && (((XVECTOR (x)->size & (PSEUDOVECTOR_FLAG | (code)))) \
960 == (PSEUDOVECTOR_FLAG | (code))))
962 /* Test for specific pseudovector types. */
963 #define WINDOW_CONFIGURATIONP(x) PSEUDOVECTORP (x, PVEC_WINDOW_CONFIGURATION)
964 #define GC_WINDOW_CONFIGURATIONP(x) GC_PSEUDOVECTORP (x, PVEC_WINDOW_CONFIGURATION)
965 #define PROCESSP(x) PSEUDOVECTORP (x, PVEC_PROCESS)
966 #define GC_PROCESSP(x) GC_PSEUDOVECTORP (x, PVEC_PROCESS)
967 #define WINDOWP(x) PSEUDOVECTORP (x, PVEC_WINDOW)
968 #define GC_WINDOWP(x) GC_PSEUDOVECTORP (x, PVEC_WINDOW)
969 #define SUBRP(x) PSEUDOVECTORP (x, PVEC_SUBR)
970 #define GC_SUBRP(x) GC_PSEUDOVECTORP (x, PVEC_SUBR)
971 #define COMPILEDP(x) PSEUDOVECTORP (x, PVEC_COMPILED)
972 #define GC_COMPILEDP(x) GC_PSEUDOVECTORP (x, PVEC_COMPILED)
973 #define BUFFERP(x) PSEUDOVECTORP (x, PVEC_BUFFER)
974 #define GC_BUFFERP(x) GC_PSEUDOVECTORP (x, PVEC_BUFFER)
977 #define FRAMEP(x) PSEUDOVECTORP (x, PVEC_FRAME)
978 #define GC_FRAMEP(x) GC_PSEUDOVECTORP (x, PVEC_FRAME)
981 /* We could use this in the !HAVE_MOUSE case also, but we prefer a compile-time
982 error message in case FRAMEP is used. */
983 #define FRAMEP(x) (EQ (x, Fselected_frame ()))
984 #define GC_FRAMEP(x) (GC_EQ (x, Fselected_frame ()))
989 #define EQ(x, y) (XFASTINT (x) == XFASTINT (y))
990 #define GC_EQ(x, y) (XGCTYPE (x) == XGCTYPE (y) && XPNTR (x) == XPNTR (y))
992 #define CHECK_LIST(x, i) \
993 do { if (!CONSP ((x)) && !NILP (x)) x = wrong_type_argument (Qlistp, (x)); } while (0)
995 #define CHECK_STRING(x, i) \
996 do { if (!STRINGP ((x))) x = wrong_type_argument (Qstringp, (x)); } while (0)
998 #define CHECK_CONS(x, i) \
999 do { if (!CONSP ((x))) x = wrong_type_argument (Qconsp, (x)); } while (0)
1001 #define CHECK_SYMBOL(x, i) \
1002 do { if (!SYMBOLP ((x))) x = wrong_type_argument (Qsymbolp, (x)); } while (0)
1004 #define CHECK_VECTOR(x, i) \
1005 do { if (!VECTORP ((x))) x = wrong_type_argument (Qvectorp, (x)); } while (0)
1007 #define CHECK_BUFFER(x, i) \
1008 do { if (!BUFFERP ((x))) x = wrong_type_argument (Qbufferp, (x)); } while (0)
1010 #define CHECK_WINDOW(x, i) \
1011 do { if (!WINDOWP ((x))) x = wrong_type_argument (Qwindowp, (x)); } while (0)
1013 /* This macro rejects windows on the interior of the window tree as
1014 "dead", which is what we want; this is an argument-checking macro, and
1015 the user should never get access to interior windows.
1017 A window of any sort, leaf or interior, is dead iff the buffer,
1018 vchild, and hchild members are all nil. */
1020 #define CHECK_LIVE_WINDOW(x, i) \
1022 if (!WINDOWP ((x)) \
1023 || NILP (XWINDOW ((x))->buffer)) \
1024 x = wrong_type_argument (Qwindow_live_p, (x)); \
1027 #define CHECK_PROCESS(x, i) \
1028 do { if (!PROCESSP ((x))) x = wrong_type_argument (Qprocessp, (x)); } while (0)
1030 #define CHECK_NUMBER(x, i) \
1031 do { if (!INTEGERP ((x))) x = wrong_type_argument (Qintegerp, (x)); } while (0)
1033 #define CHECK_NATNUM(x, i) \
1034 do { if (!NATNUMP (x)) x = wrong_type_argument (Qwholenump, (x)); } while (0)
1036 #define CHECK_MARKER(x, i) \
1037 do { if (!MARKERP ((x))) x = wrong_type_argument (Qmarkerp, (x)); } while (0)
1039 #define CHECK_NUMBER_COERCE_MARKER(x, i) \
1040 do { if (MARKERP ((x))) XSETFASTINT (x, marker_position (x)); \
1041 else if (!INTEGERP ((x))) x = wrong_type_argument (Qinteger_or_marker_p, (x)); } while (0)
1043 #ifdef LISP_FLOAT_TYPE
1049 #define XFLOATINT(n) extract_float((n))
1051 #define CHECK_FLOAT(x, i) \
1052 do { if (!FLOATP (x)) \
1053 x = wrong_type_argument (Qfloatp, (x)); } while (0)
1055 #define CHECK_NUMBER_OR_FLOAT(x, i) \
1056 do { if (!FLOATP (x) && !INTEGERP (x)) \
1057 x = wrong_type_argument (Qnumberp, (x)); } while (0)
1059 #define CHECK_NUMBER_OR_FLOAT_COERCE_MARKER(x, i) \
1060 do { if (MARKERP (x)) XSETFASTINT (x, marker_position (x)); \
1061 else if (!INTEGERP (x) && !FLOATP (x)) \
1062 x = wrong_type_argument (Qnumber_or_marker_p, (x)); } while (0)
1064 #else /* Not LISP_FLOAT_TYPE */
1066 #define CHECK_NUMBER_OR_FLOAT CHECK_NUMBER
1068 #define CHECK_NUMBER_OR_FLOAT_COERCE_MARKER CHECK_NUMBER_COERCE_MARKER
1070 #define XFLOATINT(n) XINT((n))
1071 #endif /* LISP_FLOAT_TYPE */
1073 #define CHECK_OVERLAY(x, i) \
1074 do { if (!OVERLAYP ((x))) x = wrong_type_argument (Qoverlayp, (x));} while (0)
1076 /* Cast pointers to this type to compare them. Some machines want int. */
1077 #ifndef PNTR_COMPARISON_TYPE
1078 #define PNTR_COMPARISON_TYPE unsigned int
1081 /* Define a built-in function for calling from Lisp.
1082 `lname' should be the name to give the function in Lisp,
1083 as a null-terminated C string.
1084 `fnname' should be the name of the function in C.
1085 By convention, it starts with F.
1086 `sname' should be the name for the C constant structure
1087 that records information on this function for internal use.
1088 By convention, it should be the same as `fnname' but with S instead of F.
1089 It's too bad that C macros can't compute this from `fnname'.
1090 `minargs' should be a number, the minimum number of arguments allowed.
1091 `maxargs' should be a number, the maximum number of arguments allowed,
1092 or else MANY or UNEVALLED.
1093 MANY means pass a vector of evaluated arguments,
1094 in the form of an integer number-of-arguments
1095 followed by the address of a vector of Lisp_Objects
1096 which contains the argument values.
1097 UNEVALLED means pass the list of unevaluated arguments
1098 `prompt' says how to read arguments for an interactive call.
1099 See the doc string for `interactive'.
1100 A null string means call interactively with no arguments.
1101 `doc' is documentation for the user. */
1103 #if !defined (__STDC__) || defined (USE_NONANSI_DEFUN)
1104 #define DEFUN(lname, fnname, sname, minargs, maxargs, prompt, doc) \
1105 Lisp_Object fnname (); \
1106 struct Lisp_Subr sname = \
1107 { PVEC_SUBR | (sizeof (struct Lisp_Subr) / sizeof (EMACS_INT)), \
1108 fnname, minargs, maxargs, lname, prompt, 0}; \
1113 /* This version of DEFUN declares a function prototype with the right
1114 arguments, so we can catch errors with maxargs at compile-time. */
1115 #define DEFUN(lname, fnname, sname, minargs, maxargs, prompt, doc) \
1116 Lisp_Object fnname DEFUN_ARGS_ ## maxargs ; \
1117 struct Lisp_Subr sname = \
1118 { PVEC_SUBR | (sizeof (struct Lisp_Subr) / sizeof (EMACS_INT)), \
1119 fnname, minargs, maxargs, lname, prompt, 0}; \
1122 /* Note that the weird token-substitution semantics of ANSI C makes
1123 this work for MANY and UNEVALLED. */
1124 #define DEFUN_ARGS_MANY (int, Lisp_Object *)
1125 #define DEFUN_ARGS_UNEVALLED (Lisp_Object)
1126 #define DEFUN_ARGS_0 (void)
1127 #define DEFUN_ARGS_1 (Lisp_Object)
1128 #define DEFUN_ARGS_2 (Lisp_Object, Lisp_Object)
1129 #define DEFUN_ARGS_3 (Lisp_Object, Lisp_Object, Lisp_Object)
1130 #define DEFUN_ARGS_4 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object)
1131 #define DEFUN_ARGS_5 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
1133 #define DEFUN_ARGS_6 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
1134 Lisp_Object, Lisp_Object)
1135 #define DEFUN_ARGS_7 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
1136 Lisp_Object, Lisp_Object, Lisp_Object)
1140 is how we define the symbol for function `name' at start-up time. */
1141 extern void defsubr ();
1144 #define UNEVALLED -1
1146 extern void defvar_lisp ();
1147 extern void defvar_bool ();
1148 extern void defvar_int ();
1149 extern void defvar_kboard ();
1151 /* Macros we use to define forwarded Lisp variables.
1152 These are used in the syms_of_FILENAME functions. */
1154 #define DEFVAR_LISP(lname, vname, doc) defvar_lisp (lname, vname)
1155 #define DEFVAR_LISP_NOPRO(lname, vname, doc) defvar_lisp_nopro (lname, vname)
1156 #define DEFVAR_BOOL(lname, vname, doc) defvar_bool (lname, vname)
1157 #define DEFVAR_INT(lname, vname, doc) defvar_int (lname, vname)
1158 #define DEFVAR_PER_BUFFER(lname, vname, type, doc) \
1159 defvar_per_buffer (lname, vname, type, 0)
1160 #define DEFVAR_KBOARD(lname, vname, doc) \
1161 defvar_kboard (lname, \
1162 (int)((char *)(¤t_kboard->vname) \
1163 - (char *)current_kboard))
1165 /* Structure for recording Lisp call stack for backtrace purposes. */
1167 /* The special binding stack holds the outer values of variables while
1168 they are bound by a function application or a let form, stores the
1169 code to be executed for Lisp unwind-protect forms, and stores the C
1170 functions to be called for record_unwind_protect.
1172 If func is non-zero, undoing this binding applies func to old_value;
1173 This implements record_unwind_protect.
1174 If func is zero and symbol is nil, undoing this binding evaluates
1175 the list of forms in old_value; this implements Lisp's unwind-protect
1177 Otherwise, undoing this binding stores old_value as symbol's value; this
1178 undoes the bindings made by a let form or function call. */
1181 Lisp_Object symbol
, old_value
;
1182 Lisp_Object (*func
) ();
1183 Lisp_Object unused
; /* Dividing by 16 is faster than by 12 */
1186 extern struct specbinding
*specpdl
;
1187 extern struct specbinding
*specpdl_ptr
;
1188 extern int specpdl_size
;
1190 /* Everything needed to describe an active condition case. */
1193 /* The handler clauses and variable from the condition-case form. */
1194 Lisp_Object handler
;
1196 /* Fsignal stores here the condition-case clause that applies,
1197 and Fcondition_case thus knows which clause to run. */
1198 Lisp_Object chosen_clause
;
1200 /* Used to effect the longjump out to the handler. */
1201 struct catchtag
*tag
;
1203 /* The next enclosing handler. */
1204 struct handler
*next
;
1207 extern struct handler
*handlerlist
;
1209 extern struct catchtag
*catchlist
;
1210 extern struct backtrace
*backtrace_list
;
1212 extern Lisp_Object memory_signal_data
;
1214 /* An address near the bottom of the stack.
1215 Tells GC how to save a copy of the stack. */
1216 extern char *stack_bottom
;
1218 /* Check quit-flag and quit if it is non-nil. */
1221 if (!NILP (Vquit_flag) && NILP (Vinhibit_quit)) \
1222 { Vquit_flag = Qnil; Fsignal (Qquit, Qnil); }
1224 /* Nonzero if ought to quit now. */
1226 #define QUITP (!NILP (Vquit_flag) && NILP (Vinhibit_quit))
1228 /* 1 if CH is upper case. */
1230 #define UPPERCASEP(CH) \
1231 (XSTRING (current_buffer->downcase_table)->data[CH] != (CH))
1233 /* 1 if CH is lower case. */
1235 #define LOWERCASEP(CH) \
1237 && XSTRING (current_buffer->upcase_table)->data[CH] != (CH))
1239 /* 1 if CH is neither upper nor lower case. */
1241 #define NOCASEP(CH) (XSTRING (current_buffer->upcase_table)->data[CH] == (CH))
1243 /* Upcase a character, or make no change if that cannot be done. */
1245 #define UPCASE(CH) \
1246 (XSTRING (current_buffer->downcase_table)->data[CH] == (CH) \
1247 ? UPCASE1 (CH) : (CH))
1249 /* Upcase a character known to be not upper case. */
1251 #define UPCASE1(CH) (XSTRING (current_buffer->upcase_table)->data[CH])
1253 /* Downcase a character, or make no change if that cannot be done. */
1255 #define DOWNCASE(CH) (XSTRING (current_buffer->downcase_table)->data[CH])
1257 /* Current buffer's map from characters to lower-case characters. */
1259 #define DOWNCASE_TABLE XSTRING (current_buffer->downcase_table)->data
1261 /* Table mapping each char to the next char with the same lowercase version.
1262 This mapping is a no-op only for characters that don't have case. */
1263 #define UPCASE_TABLE XSTRING (current_buffer->upcase_table)->data
1265 extern Lisp_Object Vascii_downcase_table
, Vascii_upcase_table
;
1266 extern Lisp_Object Vascii_canon_table
, Vascii_eqv_table
;
1268 /* Number of bytes of structure consed since last GC. */
1270 extern int consing_since_gc
;
1272 /* Threshold for doing another gc. */
1274 extern int gc_cons_threshold
;
1276 /* Structure for recording stack slots that need marking. */
1278 /* This is a chain of structures, each of which points at a Lisp_Object variable
1279 whose value should be marked in garbage collection.
1280 Normally every link of the chain is an automatic variable of a function,
1281 and its `val' points to some argument or local variable of the function.
1282 On exit to the function, the chain is set back to the value it had on entry.
1283 This way, no link remains in the chain when the stack frame containing the
1286 Every function that can call Feval must protect in this fashion all
1287 Lisp_Object variables whose contents will be used again. */
1289 extern struct gcpro
*gcprolist
;
1294 Lisp_Object
*var
; /* Address of first protected variable */
1295 int nvars
; /* Number of consecutive protected variables */
1298 #define GCPRO1(varname) \
1299 {gcpro1.next = gcprolist; gcpro1.var = &varname; gcpro1.nvars = 1; \
1300 gcprolist = &gcpro1; }
1302 #define GCPRO2(varname1, varname2) \
1303 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
1304 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
1305 gcprolist = &gcpro2; }
1307 #define GCPRO3(varname1, varname2, varname3) \
1308 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
1309 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
1310 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
1311 gcprolist = &gcpro3; }
1313 #define GCPRO4(varname1, varname2, varname3, varname4) \
1314 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
1315 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
1316 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
1317 gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \
1318 gcprolist = &gcpro4; }
1320 #define GCPRO5(varname1, varname2, varname3, varname4, varname5) \
1321 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
1322 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
1323 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
1324 gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \
1325 gcpro5.next = &gcpro4; gcpro5.var = &varname5; gcpro5.nvars = 1; \
1326 gcprolist = &gcpro5; }
1328 /* Call staticpro (&var) to protect static variable `var'. */
1332 #define UNGCPRO (gcprolist = gcpro1.next)
1334 /* Evaluate expr, UNGCPRO, and then return the value of expr. */
1335 #define RETURN_UNGCPRO(expr) \
1338 Lisp_Object ret_ungc_val; \
1339 ret_ungc_val = (expr); \
1341 return ret_ungc_val; \
1345 /* Defined in data.c */
1346 extern Lisp_Object Qnil
, Qt
, Qquote
, Qlambda
, Qsubr
, Qunbound
;
1347 extern Lisp_Object Qerror_conditions
, Qerror_message
, Qtop_level
;
1348 extern Lisp_Object Qerror
, Qquit
, Qwrong_type_argument
, Qargs_out_of_range
;
1349 extern Lisp_Object Qvoid_variable
, Qvoid_function
;
1350 extern Lisp_Object Qsetting_constant
, Qinvalid_read_syntax
;
1351 extern Lisp_Object Qinvalid_function
, Qwrong_number_of_arguments
, Qno_catch
;
1352 extern Lisp_Object Qend_of_file
, Qarith_error
;
1353 extern Lisp_Object Qbeginning_of_buffer
, Qend_of_buffer
, Qbuffer_read_only
;
1354 extern Lisp_Object Qmark_inactive
;
1356 extern Lisp_Object Qrange_error
, Qdomain_error
, Qsingularity_error
;
1357 extern Lisp_Object Qoverflow_error
, Qunderflow_error
;
1359 extern Lisp_Object Qintegerp
, Qnumberp
, Qnatnump
, Qwholenump
;
1360 extern Lisp_Object Qsymbolp
, Qlistp
, Qconsp
;
1361 extern Lisp_Object Qstringp
, Qarrayp
, Qsequencep
, Qbufferp
;
1362 extern Lisp_Object Qchar_or_string_p
, Qmarkerp
, Qvectorp
;
1363 extern Lisp_Object Qinteger_or_marker_p
, Qnumber_or_marker_p
;
1364 extern Lisp_Object Qboundp
, Qfboundp
;
1365 extern Lisp_Object Qbuffer_or_string_p
;
1366 extern Lisp_Object Qcdr
;
1368 #ifdef LISP_FLOAT_TYPE
1369 extern Lisp_Object Qfloatp
, Qinteger_or_floatp
, Qinteger_or_float_or_marker_p
;
1370 #endif /* LISP_FLOAT_TYPE */
1372 extern Lisp_Object Qframep
;
1374 extern Lisp_Object
Feq (), Fnull (), Flistp (), Fconsp (), Fatom (), Fnlistp ();
1375 extern Lisp_Object
Fintegerp (), Fnatnump (), Fsymbolp ();
1376 extern Lisp_Object
Fvectorp (), Fstringp (), Farrayp (), Fsequencep ();
1377 extern Lisp_Object
Fbufferp (), Fmarkerp (), Fsubrp (), Fchar_or_string_p ();
1378 extern Lisp_Object
Finteger_or_marker_p ();
1379 #ifdef LISP_FLOAT_TYPE
1380 extern Lisp_Object
Ffloatp(), Finteger_or_floatp();
1381 extern Lisp_Object
Finteger_or_float_or_marker_p(), Ftruncate();
1382 #endif /* LISP_FLOAT_TYPE */
1384 extern Lisp_Object
Fcar (), Fcar_safe(), Fcdr (), Fcdr_safe();
1385 extern Lisp_Object
Fsetcar (), Fsetcdr ();
1386 extern Lisp_Object
Fboundp (), Ffboundp (), Fmakunbound (), Ffmakunbound ();
1387 extern Lisp_Object
Fsymbol_function (), Fsymbol_plist (), Fsymbol_name ();
1388 extern Lisp_Object
indirect_function (), Findirect_function ();
1389 extern Lisp_Object
Ffset (), Fsetplist ();
1390 extern Lisp_Object
Fsymbol_value (), find_symbol_value (), Fset ();
1391 extern Lisp_Object
Fdefault_value (), Fset_default (), Fdefault_boundp ();
1393 extern Lisp_Object
Faref (), Faset ();
1395 extern Lisp_Object
Fstring_to_number (), Fnumber_to_string ();
1396 extern Lisp_Object
Feqlsign (), Fgtr (), Flss (), Fgeq (), Fleq ();
1397 extern Lisp_Object
Fneq (), Fzerop ();
1398 extern Lisp_Object
Fplus (), Fminus (), Ftimes (), Fquo (), Frem ();
1399 extern Lisp_Object
Fmax (), Fmin ();
1400 extern Lisp_Object
Flogand (), Flogior (), Flogxor (), Flognot ();
1401 extern Lisp_Object
Flsh (), Fash ();
1403 extern Lisp_Object
Fadd1 (), Fsub1 ();
1405 extern Lisp_Object
make_number ();
1406 extern Lisp_Object
long_to_cons ();
1407 extern unsigned long cons_to_long ();
1408 extern void args_out_of_range ();
1409 extern void args_out_of_range_3 ();
1410 extern Lisp_Object
wrong_type_argument ();
1411 extern void store_symval_forwarding ();
1412 #ifdef LISP_FLOAT_TYPE
1413 extern Lisp_Object
Ffloat_to_int(), Fint_to_float();
1414 extern double extract_float();
1415 extern Lisp_Object
make_float ();
1416 extern Lisp_Object
Ffloat ();
1417 #endif /* LISP_FLOAT_TYPE */
1419 /* Defined in fns.c */
1420 extern Lisp_Object Qstring_lessp
;
1421 extern Lisp_Object Vfeatures
;
1422 extern Lisp_Object
Fidentity (), Frandom ();
1423 extern Lisp_Object
Flength ();
1424 extern Lisp_Object
Fappend (), Fconcat (), Fvconcat (), Fcopy_sequence ();
1425 extern Lisp_Object
Fsubstring ();
1426 extern Lisp_Object
Fnth (), Fnthcdr (), Fmemq (), Fassq (), Fassoc ();
1427 extern Lisp_Object
Fmember (), Frassq (), Fdelq (), Fsort ();
1428 extern Lisp_Object
Freverse (), Fnreverse (), Fget (), Fput (), Fequal ();
1429 extern Lisp_Object
Ffillarray (), Fnconc (), Fmapcar (), Fmapconcat ();
1430 extern Lisp_Object
Fy_or_n_p (), do_yes_or_no_p ();
1431 extern Lisp_Object
Ffeaturep (), Frequire () , Fprovide ();
1432 extern Lisp_Object
concat2 (), nconc2 ();
1433 extern Lisp_Object
assq_no_quit ();
1434 extern Lisp_Object
Fcopy_alist ();
1436 /* Defined in insdel.c */
1437 extern void move_gap ();
1438 extern void make_gap ();
1439 extern void insert ();
1440 extern void insert_and_inherit ();
1441 extern void insert_1 ();
1442 extern void insert_from_string ();
1443 extern void insert_from_buffer ();
1444 extern void insert_char ();
1445 extern void insert_string ();
1446 extern void insert_before_markers ();
1447 extern void insert_before_markers_and_inherit ();
1448 extern void insert_from_string_before_markers ();
1449 extern void del_range ();
1450 extern void del_range_1 ();
1451 extern void modify_region ();
1452 extern void prepare_to_modify_buffer ();
1453 extern void signal_before_change ();
1454 extern void signal_after_change ();
1456 /* Defined in xdisp.c */
1457 extern Lisp_Object Vmessage_log_max
;
1458 extern void message ();
1459 extern void message_nolog ();
1460 extern void message1 ();
1461 extern void message1_nolog ();
1462 extern void message2 ();
1463 extern void message2_nolog ();
1464 extern void message_dolog ();
1465 extern void message_log_maybe_newline ();
1467 /* Defined in alloc.c */
1468 extern Lisp_Object Vpurify_flag
;
1469 extern Lisp_Object
Fcons (), Flist(), Fmake_list (), allocate_misc ();
1470 extern Lisp_Object
Fmake_vector (), Fvector (), Fmake_symbol (), Fmake_marker ();
1471 extern Lisp_Object
Fmake_string (), build_string (), make_string ();
1472 extern Lisp_Object
make_event_array (), make_uninit_string ();
1473 extern Lisp_Object
Fpurecopy (), make_pure_string ();
1474 extern Lisp_Object
pure_cons (), make_pure_vector ();
1475 extern Lisp_Object
Fgarbage_collect ();
1476 extern Lisp_Object
Fmake_byte_code ();
1477 extern struct Lisp_Vector
*allocate_vectorlike ();
1478 extern int gc_in_progress
;
1480 /* Defined in print.c */
1481 extern Lisp_Object Vprin1_to_string_buffer
;
1482 extern Lisp_Object
Fprin1 (), Fprin1_to_string (), Fprinc ();
1483 extern Lisp_Object
Fterpri (), Fprint ();
1484 extern Lisp_Object Vstandard_output
, Qstandard_output
;
1485 extern Lisp_Object Qexternal_debugging_output
;
1486 extern void temp_output_buffer_setup (), temp_output_buffer_show ();
1487 extern int print_level
, print_escape_newlines
;
1488 extern Lisp_Object Qprint_escape_newlines
;
1490 /* Defined in lread.c */
1491 extern Lisp_Object Qvariable_documentation
, Qstandard_input
;
1492 extern Lisp_Object Vobarray
, Vstandard_input
;
1493 extern Lisp_Object
Fread (), Fread_from_string ();
1494 extern Lisp_Object
Fintern (), Fintern_soft (), Fload ();
1495 extern Lisp_Object
Fget_file_char (), Fread_char ();
1496 extern Lisp_Object
read_filtered_event ();
1497 extern Lisp_Object
Feval_current_buffer (), Feval_region ();
1498 extern Lisp_Object
intern (), oblookup ();
1499 #define LOADHIST_ATTACH(x) \
1500 if (initialized) Vcurrent_load_list = Fcons (x, Vcurrent_load_list)
1501 extern Lisp_Object Vcurrent_load_list
;
1502 extern Lisp_Object Vload_history
;
1504 /* Defined in eval.c */
1505 extern Lisp_Object Qautoload
, Qexit
, Qinteractive
, Qcommandp
, Qdefun
, Qmacro
;
1506 extern Lisp_Object Vinhibit_quit
, Qinhibit_quit
, Vquit_flag
;
1507 extern Lisp_Object Vmocklisp_arguments
, Qmocklisp
, Qmocklisp_arguments
;
1508 extern Lisp_Object Vautoload_queue
;
1509 extern Lisp_Object Vdebug_on_error
;
1510 /* To run a normal hook, do
1511 if (!NILP (Vrun_hooks))
1512 call1 (Vrun_hooks, Qmy_funny_hook); */
1513 extern Lisp_Object Vrun_hooks
;
1514 extern Lisp_Object
Fand (), For (), Fif (), Fprogn (), Fprog1 (), Fprog2 ();
1515 extern Lisp_Object
Fsetq (), Fquote ();
1516 extern Lisp_Object
Fuser_variable_p (), Finteractive_p ();
1517 extern Lisp_Object
Fdefun (), Flet (), FletX (), Fwhile ();
1518 extern Lisp_Object
Fcatch (), Fthrow (), Funwind_protect ();
1519 extern Lisp_Object
Fcondition_case (), Fsignal ();
1520 extern Lisp_Object
Ffunction_type (), Fautoload (), Fcommandp ();
1521 extern Lisp_Object
Feval (), Fapply (), Ffuncall ();
1522 extern Lisp_Object
Fglobal_set (), Fglobal_value (), Fbacktrace ();
1523 extern Lisp_Object
apply1 (), call0 (), call1 (), call2 (), call3 ();
1524 extern Lisp_Object
call4 (), call5 (), call6 ();
1525 extern Lisp_Object
Fkill_emacs (), Fkey_binding (), Fsit_for ();
1526 extern Lisp_Object
Fdo_auto_save (), Fset_marker ();
1527 extern Lisp_Object
apply_lambda ();
1528 extern Lisp_Object
internal_catch ();
1529 extern Lisp_Object
internal_condition_case ();
1530 extern Lisp_Object
internal_condition_case_1 ();
1531 extern Lisp_Object
unbind_to ();
1532 extern void error ();
1533 extern Lisp_Object
un_autoload ();
1534 extern Lisp_Object
Ffetch_bytecode ();
1536 /* Defined in editfns.c */
1537 extern Lisp_Object
Fgoto_char ();
1538 extern Lisp_Object
Fpoint_min_marker (), Fpoint_max_marker ();
1539 extern Lisp_Object
Fpoint_min (), Fpoint_max ();
1540 extern Lisp_Object
Fpoint (), Fpoint_marker (), Fmark_marker ();
1541 extern Lisp_Object
Ffollowing_char (), Fprevious_char (), Fchar_after ();
1542 extern Lisp_Object
Finsert ();
1543 extern Lisp_Object
Feolp (), Feobp (), Fbolp (), Fbobp ();
1544 extern Lisp_Object
Fformat (), format1 ();
1545 extern Lisp_Object
make_buffer_string (), Fbuffer_substring ();
1546 extern Lisp_Object
Fbuffer_string ();
1547 extern Lisp_Object
Fstring_equal (), Fstring_lessp (), Fbuffer_substring_lessp ();
1548 extern Lisp_Object
save_excursion_save (), save_restriction_save ();
1549 extern Lisp_Object
save_excursion_restore (), save_restriction_restore ();
1550 extern Lisp_Object
Fchar_to_string ();
1552 /* defined in buffer.c */
1553 extern int overlay_touches_p ();
1554 extern Lisp_Object Vbuffer_alist
, Vinhibit_read_only
;
1555 extern Lisp_Object
Fget_buffer (), Fget_buffer_create (), Fset_buffer ();
1556 extern Lisp_Object
Fbarf_if_buffer_read_only ();
1557 extern Lisp_Object
Fcurrent_buffer (), Fswitch_to_buffer (), Fpop_to_buffer ();
1558 extern Lisp_Object
Fother_buffer ();
1559 extern Lisp_Object
Foverlay_get ();
1560 extern Lisp_Object Qoverlayp
;
1561 extern struct buffer
*all_buffers
;
1563 /* defined in marker.c */
1565 extern Lisp_Object
Fmarker_position (), Fmarker_buffer ();
1566 extern Lisp_Object
Fcopy_marker ();
1568 /* Defined in fileio.c */
1570 extern Lisp_Object Qfile_error
;
1571 extern Lisp_Object
Ffind_file_name_handler ();
1572 extern Lisp_Object
Ffile_name_as_directory ();
1573 extern Lisp_Object
Fexpand_file_name (), Ffile_name_nondirectory ();
1574 extern Lisp_Object
Fsubstitute_in_file_name ();
1575 extern Lisp_Object
Ffile_symlink_p ();
1576 extern Lisp_Object
Fverify_visited_file_modtime ();
1577 extern Lisp_Object
Ffile_exists_p ();
1578 extern Lisp_Object
Fdirectory_file_name ();
1579 extern Lisp_Object
Ffile_name_directory ();
1580 extern Lisp_Object
expand_and_dir_to_file ();
1581 extern Lisp_Object
Ffile_accessible_directory_p ();
1582 extern Lisp_Object
Funhandled_file_name_directory ();
1584 /* Defined in abbrev.c */
1586 extern Lisp_Object Vfundamental_mode_abbrev_table
;
1588 /* defined in search.c */
1589 extern Lisp_Object
Fstring_match ();
1590 extern Lisp_Object
Fscan_buffer ();
1591 extern void restore_match_data ();
1593 /* defined in minibuf.c */
1595 extern Lisp_Object last_minibuf_string
;
1596 extern Lisp_Object
read_minibuf (), Fcompleting_read ();
1597 extern Lisp_Object
Fread_from_minibuffer ();
1598 extern Lisp_Object
Fread_variable (), Fread_buffer (), Fread_key_sequence ();
1599 extern Lisp_Object
Fread_minibuffer (), Feval_minibuffer ();
1600 extern Lisp_Object
Fread_string (), Fread_file_name ();
1601 extern Lisp_Object
Fread_no_blanks_input ();
1603 /* Defined in callint.c */
1605 extern int current_prefix_partial
;
1606 extern Lisp_Object Qminus
, Qplus
, Vcurrent_prefix_arg
, Vprefix_arg
;
1607 extern Lisp_Object Vcommand_history
;
1608 extern Lisp_Object Qcall_interactively
;
1609 extern Lisp_Object
Fcall_interactively ();
1610 extern Lisp_Object
Fprefix_numeric_value ();
1611 extern Lisp_Object
Funiversal_argument ();
1612 extern Lisp_Object
Fnegative_argument ();
1613 extern Lisp_Object
Fdigit_argument ();
1614 extern void clear_prefix_arg ();
1615 extern void finalize_prefix_arg ();
1617 /* defined in casefiddle.c */
1619 extern Lisp_Object
Fdowncase (), Fupcase (), Fcapitalize ();
1621 /* defined in keyboard.c */
1623 extern Lisp_Object Qdisabled
;
1624 extern Lisp_Object Vhelp_form
, Vtop_level
;
1625 extern Lisp_Object
Fdiscard_input (), Frecursive_edit ();
1626 extern Lisp_Object
Fcommand_execute (), Finput_pending_p ();
1627 extern Lisp_Object Qvertical_scroll_bar
;
1629 extern void delete_kboard ();
1632 /* defined in keymap.c */
1634 extern Lisp_Object Qkeymap
, Qmenu_bar
;
1635 extern Lisp_Object current_global_map
;
1636 extern Lisp_Object
Fkey_description (), Fsingle_key_description ();
1637 extern Lisp_Object
Fwhere_is_internal ();
1638 extern Lisp_Object
access_keymap (), store_in_keymap ();
1639 extern Lisp_Object
get_keyelt (), get_keymap ();
1641 /* defined in indent.c */
1642 extern Lisp_Object
Fvertical_motion (), Findent_to (), Fcurrent_column ();
1644 /* defined in window.c */
1645 extern Lisp_Object Qwindowp
, Qwindow_live_p
;
1646 extern Lisp_Object
Fget_buffer_window ();
1647 extern Lisp_Object
Fsave_window_excursion ();
1648 extern Lisp_Object
Fset_window_configuration (), Fcurrent_window_configuration ();
1649 extern Lisp_Object
Fcoordinates_in_window_p ();
1650 extern Lisp_Object
Fwindow_at ();
1651 extern int window_internal_height (), window_internal_width ();
1653 /* defined in frame.c */
1654 extern Lisp_Object Qvisible
;
1655 extern Lisp_Object
Fframep ();
1656 extern Lisp_Object
Fselect_frame ();
1657 extern Lisp_Object
Ffocus_frame ();
1658 extern Lisp_Object
Funfocus_frame ();
1659 extern Lisp_Object
Fselected_frame ();
1660 extern Lisp_Object
Fwindow_frame ();
1661 extern Lisp_Object
Fframe_root_window ();
1662 extern Lisp_Object
Fframe_selected_window ();
1663 extern Lisp_Object
Fframe_list ();
1664 extern Lisp_Object
Fnext_frame ();
1665 extern Lisp_Object
Fdelete_frame ();
1666 extern Lisp_Object
Fread_mouse_position ();
1667 extern Lisp_Object
Fset_mouse_position ();
1668 extern Lisp_Object
Fmake_frame_visible ();
1669 extern Lisp_Object
Fmake_frame_invisible ();
1670 extern Lisp_Object
Ficonify_frame ();
1671 extern Lisp_Object
Fdeiconify_frame ();
1672 extern Lisp_Object
Fframe_visible_p ();
1673 extern Lisp_Object
Fvisible_frame_list ();
1674 extern Lisp_Object
Fframe_parameters ();
1675 extern Lisp_Object
Fmodify_frame_parameters ();
1676 extern Lisp_Object
Fframe_pixel_size ();
1677 extern Lisp_Object
Fframe_height ();
1678 extern Lisp_Object
Fframe_width ();
1679 extern Lisp_Object
Fset_frame_height ();
1680 extern Lisp_Object
Fset_frame_width ();
1681 extern Lisp_Object
Fset_frame_size ();
1682 extern Lisp_Object
Fset_frame_position ();
1684 extern Lisp_Object
Frubber_band_rectangle ();
1685 #endif /* HAVE_X11 */
1687 /* defined in emacs.c */
1688 extern Lisp_Object
decode_env_path ();
1689 extern Lisp_Object Vinvocation_name
, Vinvocation_directory
;
1690 extern Lisp_Object Vinstallation_directory
;
1691 void shut_down_emacs ( /* int signal, int no_x, Lisp_Object stuff */ );
1692 /* Nonzero means don't do interactive redisplay and don't change tty modes */
1693 extern int noninteractive
;
1694 /* Nonzero means don't do use window-system-specific display code */
1695 extern int inhibit_window_system
;
1696 /* Nonzero means that a filter or a sentinel is running. */
1697 extern int running_asynch_code
;
1699 /* defined in process.c */
1700 extern Lisp_Object
Fget_process (), Fget_buffer_process (), Fprocessp ();
1701 extern Lisp_Object
Fprocess_status (), Fkill_process ();
1702 extern Lisp_Object
Fprocess_send_eof ();
1703 extern Lisp_Object Qprocessp
;
1705 /* defined in callproc.c */
1706 extern Lisp_Object Vexec_path
, Vexec_directory
, Vdata_directory
;
1707 extern Lisp_Object Vdoc_directory
;
1709 /* defined in doc.c */
1710 extern Lisp_Object Vdoc_file_name
;
1711 extern Lisp_Object
Fsubstitute_command_keys ();
1712 extern Lisp_Object
Fdocumentation (), Fdocumentation_property ();
1714 /* defined in bytecode.c */
1715 extern Lisp_Object Qbytecode
;
1716 extern Lisp_Object
Fbyte_code ();
1718 /* defined in macros.c */
1719 extern Lisp_Object Qexecute_kbd_macro
;
1720 extern Lisp_Object
Fexecute_kbd_macro ();
1722 /* defined in undo.c */
1723 extern Lisp_Object
Fundo_boundary ();
1724 extern Lisp_Object
truncate_undo_list ();
1726 /* defined in textprop.c */
1727 extern Lisp_Object Qmodification_hooks
;
1728 extern Lisp_Object Qrear_nonsticky
;
1729 extern Lisp_Object Qinsert_in_front_hooks
, Qinsert_behind_hooks
;
1730 extern Lisp_Object
Fnext_property_change ();
1731 extern Lisp_Object
Fnext_single_property_change ();
1733 /* Nonzero means Emacs has already been initialized.
1734 Used during startup to detect startup of dumped Emacs. */
1735 extern int initialized
;
1737 extern int immediate_quit
; /* Nonzero means ^G can quit instantly */
1739 extern void debugger ();
1741 extern char *getenv (), *ctime (), *getwd ();
1742 extern long *xmalloc (), *xrealloc ();
1743 extern void xfree ();
1745 extern char *egetenv ();
1747 /* Set up the name of the machine we're running on. */
1748 extern void init_system_name ();
1750 /* Some systems (e.g., NT) use a different path separator than Unix,
1751 in addition to a device separator. Default the path separator
1752 to '/', and don't test for a device separator in IS_ANY_SEP. */
1754 #ifndef DIRECTORY_SEP
1755 #define DIRECTORY_SEP '/'
1757 #ifndef IS_DIRECTORY_SEP
1758 #define IS_DIRECTORY_SEP(_c_) ((_c_) == DIRECTORY_SEP)
1760 #ifndef IS_DEVICE_SEP
1762 #define IS_DEVICE_SEP(_c_) 0
1764 #define IS_DEVICE_SEP(_c_) ((_c_) == DEVICE_SEP)
1768 #define IS_ANY_SEP(_c_) (IS_DIRECTORY_SEP (_c_))
1771 #ifdef SWITCH_ENUM_BUG
1772 #define SWITCH_ENUM_CAST(x) ((int)(x))
1774 #define SWITCH_ENUM_CAST(x) (x)