1 /* Fundamental definitions for GNU Emacs Lisp interpreter.
2 Copyright (C) 1985, 1986, 1987, 1993 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 /* Define the fundamental Lisp data structures */
23 /* This is the set of Lisp data types */
27 /* Integer. XINT(obj) is the integer value. */
30 /* Symbol. XSYMBOL (object) points to a struct Lisp_Symbol. */
33 /* Marker (buffer ptr). XMARKER(object) points to a struct Lisp_Marker. */
36 /* String. XSTRING (object) points to a struct Lisp_String.
37 The length of the string, and its contents, are stored therein. */
40 /* Vector of Lisp objects. XVECTOR(object) points to a struct Lisp_Vector.
41 The length of the vector, and its contents, are stored therein. */
44 /* Cons. XCONS (object) points to a struct Lisp_Cons. */
47 /* Byte-compiled function. A vector of 4 to 6 elements which are the
48 arglist, bytecode-string, constant vector, stack size,
49 (optional) doc string, and (optional) interactive spec. */
52 /* Editor buffer. XBUFFER(obj) points to a struct buffer. */
55 /* Built-in function. XSUBR(obj) points to a struct Lisp_Subr
56 which describes how to call the function, and its documentation,
57 as well as pointing to the code. */
60 /* Internal value return by subroutines of read.
61 The user never sees this data type.
62 Its value is just a number. */
65 /* Forwarding pointer to an int variable.
66 This is allowed only in the value cell of a symbol,
67 and it means that the symbol's value really lives in the
68 specified int variable.
69 XINTPTR(obj) points to the int variable. */
72 /* Boolean forwarding pointer to an int variable.
73 This is like Lisp_Intfwd except that the ostensible
74 "value" of the symbol is t if the int variable is nonzero,
75 nil if it is zero. XINTPTR(obj) points to the int variable. */
78 /* Object describing a connection to a subprocess.
79 It points to storage of type struct Lisp_Process */
82 /* Forwarding pointer to a Lisp_Object variable.
83 This is allowed only in the value cell of a symbol,
84 and it means that the symbol's value really lives in the
86 XOBJFWD(obj) points to the Lisp_Object variable. */
90 /* Pointer to a vector-like object describing a display frame
91 on which Emacs can display a window hierarchy. We don't define
92 this unless MULTI_FRAME is defined; this helps the compiler catch
93 code that won't work on a non-MULTI_FRAME configuration. */
97 /* Used when a FILE * value needs to be passed
98 in an argument of type Lisp_Object.
99 You must do *(FILE **) XPNTR(obj) to get the value.
100 The user will never see this data type. */
101 Lisp_Internal_Stream
,
103 /* Used in a symbol value cell when the symbol's value is per-buffer.
104 The actual contents are a cons cell which starts a list like this:
105 (REALVALUE BUFFER CURRENT-ALIST-ELEMENT . DEFAULT-VALUE).
107 BUFFER is the last buffer for which this symbol's value was
110 CURRENT-ALIST-ELEMENT is a pointer to an element of BUFFER's
111 local_var_alist, that being the element whose car is this
112 variable. Or it can be a pointer to the
113 (CURRENT-ALIST-ELEMENT . DEFAULT-VALUE),
114 if BUFFER does not have an element in its alist for this
115 variable (that is, if BUFFER sees the default value of this
118 If we want to examine or set the value and BUFFER is current,
119 we just examine or set REALVALUE. If BUFFER is not current, we
120 store the current REALVALUE value into CURRENT-ALIST-ELEMENT,
121 then find the appropriate alist element for the buffer now
122 current and set up CURRENT-ALIST-ELEMENT. Then we set
123 REALVALUE out of that element, and store into BUFFER.
125 If we are setting the variable and the current buffer does not
126 have an alist entry for this variable, an alist entry is
129 Note that REALVALUE can be a forwarding pointer. Each time it
130 is examined or set, forwarding must be done. Each time we
131 switch buffers, buffer-local variables which forward into C
132 variables are swapped immediately, so the C code can assume
133 that they are always up to date. */
134 Lisp_Buffer_Local_Value
,
136 /* Like Lisp_Buffer_Local_Value with one difference:
137 merely setting the variable while some buffer is current
138 does not cause that buffer to have its own local value of this variable.
139 Only make-local-variable does that. */
140 Lisp_Some_Buffer_Local_Value
,
143 /* Like Lisp_Objfwd except that value lives in a slot
144 in the current buffer. Value is byte index of slot within buffer */
147 /* In symbol value cell, means var is unbound.
148 In symbol function cell, means function name is undefined. */
151 /* Window used for Emacs display.
152 Data inside looks like a Lisp_Vector. */
155 /* Used by save,set,restore-window-configuration */
156 Lisp_Window_Configuration
,
158 #ifdef LISP_FLOAT_TYPE
160 #endif /* LISP_FLOAT_TYPE */
163 An overlay values is actually a retagged cons, the first in a
165 ((START . END) nil . PLIST)
166 where START and END are markers in the overlay's buffer, and
167 PLIST is the overlay's property list. */
171 #ifndef NO_UNION_TYPE
173 #ifndef WORDS_BIG_ENDIAN
175 /* Definition of Lisp_Object for little-endian machines. */
180 /* Used for comparing two Lisp_Objects;
181 also, positive integers can be accessed fast this way. */
191 unsigned int val
: 24;
196 unsigned int val
: 24;
197 enum Lisp_Type type
: 7;
198 /* The markbit is not really part of the value of a Lisp_Object,
199 and is always zero except during garbage collection. */
200 unsigned int markbit
: 1;
205 #else /* If WORDS_BIG_ENDIAN */
210 /* Used for comparing two Lisp_Objects;
211 also, positive integers can be accessed fast this way. */
222 unsigned int val
: 24;
226 /* The markbit is not really part of the value of a Lisp_Object,
227 and is always zero except during garbage collection. */
228 unsigned int markbit
: 1;
229 enum Lisp_Type type
: 7;
230 unsigned int val
: 24;
235 #endif /* WORDS_BIG_ENDIAN */
237 #endif /* NO_UNION_TYPE */
240 /* If union type is not wanted, define Lisp_Object as just a number
241 and define the macros below to extract fields by shifting */
245 #define Lisp_Object int
247 /* These values are overridden by the m- file on some machines. */
257 #define VALMASK ((1<<VALBITS) - 1)
259 #define GCTYPEMASK ((1<<GCTYPEBITS) - 1)
260 #define MARKBIT (1 << (VALBITS + GCTYPEBITS))
262 #endif /* NO_UNION_TYPE */
264 /* These macros extract various sorts of values from a Lisp_Object.
265 For example, if tem is a Lisp_Object whose type is Lisp_Cons,
266 XCONS (tem) is the struct Lisp_Cons * pointing to the memory for that cons. */
270 /* One need to override this if there must be high bits set in data space
271 (doing the result of the below & ((1 << (GCTYPE + 1)) - 1) would work
272 on all machines, but would penalise machines which don't need it)
275 #define XTYPE(a) ((enum Lisp_Type) ((a) >> VALBITS))
279 #define XSETTYPE(a, b) ((a) = XUINT (a) | ((int)(b) << VALBITS))
282 /* Use XFASTINT for fast retrieval and storage of integers known
283 to be positive. This takes advantage of the fact that Lisp_Int is 0. */
284 #define XFASTINT(a) (a)
286 /* Extract the value of a Lisp_Object as a signed integer. */
288 #ifndef XINT /* Some machines need to do this differently. */
289 #define XINT(a) (((a) << (INTBITS-VALBITS)) >> (INTBITS-VALBITS))
292 /* Extract the value as an unsigned integer. This is a basis
293 for extracting it as a pointer to a structure in storage. */
296 #define XUINT(a) ((a) & VALMASK)
301 /* In this representation, data is found in two widely separated segments. */
302 extern int pure_size
;
304 (XUINT (a) | (XUINT (a) > pure_size ? DATA_SEG_BITS : PURE_SEG_BITS))
305 #else /* not HAVE_SHM */
307 /* This case is used for the rt-pc.
308 In the diffs I was given, it checked for ptr = 0
309 and did not adjust it in that case.
310 But I don't think that zero should ever be found
311 in a Lisp object whose data type says it points to something. */
312 #define XPNTR(a) (XUINT (a) | DATA_SEG_BITS)
314 #define XPNTR(a) XUINT (a)
316 #endif /* not HAVE_SHM */
317 #endif /* no XPNTR */
320 #define XSETINT(a, b) ((a) = ((a) & ~VALMASK) | ((b) & VALMASK))
324 #define XSETUINT(a, b) XSETINT (a, b)
328 #define XSETPNTR(a, b) XSETINT (a, b)
332 #define XSET(var, type, ptr) \
333 ((var) = ((int)(type) << VALBITS) + ((int) (ptr) & VALMASK))
336 /* During garbage collection, XGCTYPE must be used for extracting types
337 so that the mark bit is ignored. XMARKBIT accesses the markbit.
338 Markbits are used only in particular slots of particular structure types.
339 Other markbits are always zero.
340 Outside of garbage collection, all mark bits are always zero. */
343 #define XGCTYPE(a) ((enum Lisp_Type) (((a) >> VALBITS) & GCTYPEMASK))
346 #if VALBITS + GCTYPEBITS == INTBITS - 1
347 /* Make XMARKBIT faster if mark bit is sign bit. */
349 #define XMARKBIT(a) ((a) < 0)
351 #endif /* markbit is sign bit */
354 #define XMARKBIT(a) ((a) & MARKBIT)
358 #define XSETMARKBIT(a,b) ((a) = ((a) & ~MARKBIT) | ((b) ? MARKBIT : 0))
362 #define XMARK(a) ((a) |= MARKBIT)
366 #define XUNMARK(a) ((a) &= ~MARKBIT)
369 #endif /* NO_UNION_TYPE */
371 #ifndef NO_UNION_TYPE
373 #define XTYPE(a) ((enum Lisp_Type) (a).u.type)
374 #define XSETTYPE(a, b) ((a).u.type = (char) (b))
376 /* Use XFASTINT for fast retrieval and storage of integers known
377 to be positive. This takes advantage of the fact that Lisp_Int is 0. */
378 #define XFASTINT(a) ((a).i)
380 #ifdef EXPLICIT_SIGN_EXTEND
381 /* Make sure we sign-extend; compilers have been known to fail to do so. */
382 #define XINT(a) (((a).i << 8) >> 8)
384 #define XINT(a) ((a).s.val)
385 #endif /* EXPLICIT_SIGN_EXTEND */
387 #define XUINT(a) ((a).u.val)
388 #define XPNTR(a) ((a).u.val)
389 #define XSETINT(a, b) ((a).s.val = (int) (b))
390 #define XSETUINT(a, b) ((a).s.val = (int) (b))
391 #define XSETPNTR(a, b) ((a).s.val = (int) (b))
393 #define XSET(var, vartype, ptr) \
394 (((var).s.type = ((char) (vartype))), ((var).s.val = ((int) (ptr))))
396 /* During garbage collection, XGCTYPE must be used for extracting types
397 so that the mark bit is ignored. XMARKBIT access the markbit.
398 Markbits are used only in particular slots of particular structure types.
399 Other markbits are always zero.
400 Outside of garbage collection, all mark bits are always zero. */
402 #define XGCTYPE(a) ((a).gu.type)
403 #define XMARKBIT(a) ((a).gu.markbit)
404 #define XSETMARKBIT(a,b) (XMARKBIT(a) = (b))
405 #define XMARK(a) (XMARKBIT(a) = 1)
406 #define XUNMARK(a) (XMARKBIT(a) = 0)
408 #endif /* NO_UNION_TYPE */
411 #define XCONS(a) ((struct Lisp_Cons *) XPNTR(a))
412 #define XBUFFER(a) ((struct buffer *) XPNTR(a))
413 #define XVECTOR(a) ((struct Lisp_Vector *) XPNTR(a))
414 #define XSUBR(a) ((struct Lisp_Subr *) XPNTR(a))
415 #define XSTRING(a) ((struct Lisp_String *) XPNTR(a))
416 #define XSYMBOL(a) ((struct Lisp_Symbol *) XPNTR(a))
417 #define XFUNCTION(a) ((Lisp_Object (*)()) XPNTR(a))
418 #define XMARKER(a) ((struct Lisp_Marker *) XPNTR(a))
419 #define XOBJFWD(a) ((Lisp_Object *) XPNTR(a))
420 #define XINTPTR(a) ((int *) XPNTR(a))
421 #define XWINDOW(a) ((struct window *) XPNTR(a))
422 #define XPROCESS(a) ((struct Lisp_Process *) XPNTR(a))
423 #define XFLOAT(a) ((struct Lisp_Float *) XPNTR(a))
425 #define XSETCONS(a, b) XSETPNTR(a, (int) (b))
426 #define XSETBUFFER(a, b) XSETPNTR(a, (int) (b))
427 #define XSETVECTOR(a, b) XSETPNTR(a, (int) (b))
428 #define XSETSUBR(a, b) XSETPNTR(a, (int) (b))
429 #define XSETSTRING(a, b) XSETPNTR(a, (int) (b))
430 #define XSETSYMBOL(a, b) XSETPNTR(a, (int) (b))
431 #define XSETFUNCTION(a, b) XSETPNTR(a, (int) (b))
432 #define XSETMARKER(a, b) XSETPNTR(a, (int) (b))
433 #define XSETOBJFWD(a, b) XSETPNTR(a, (int) (b))
434 #define XSETINTPTR(a, b) XSETPNTR(a, (int) (b))
435 #define XSETWINDOW(a, b) XSETPNTR(a, (int) (b))
436 #define XSETPROCESS(a, b) XSETPNTR(a, (int) (b))
437 #define XSETFLOAT(a, b) XSETPNTR(a, (int) (b))
439 #ifdef USE_TEXT_PROPERTIES
440 /* Basic data type for use of intervals. See the macros in intervals.h */
444 /* The first group of entries deal with the tree structure. */
446 unsigned int total_length
; /* Length of myself and both children. */
447 unsigned int position
; /* Cache of interval's character position */
448 struct interval
*left
; /* Intervals which precede me. */
449 struct interval
*right
; /* Intervals which succeed me. */
451 /* Parent in the tree, or the Lisp_Object containing this interval tree.
453 The mark bit on the root interval of an interval tree says
454 whether we have started (and possibly finished) marking the
455 tree. If GC comes across an interval tree whose root's parent
456 field has its markbit set, it leaves the tree alone.
458 You'd think we could store this information in the parent object
459 somewhere (after all, that should be visited once and then
460 ignored too, right?), but strings are GC'd strangely. */
461 struct interval
*parent
;
463 /* The remaining components are `properties' of the interval.
464 The first four are duplicates for things which can be on the list,
465 for purposes of speed. */
467 unsigned char write_protect
; /* Non-zero means can't modify. */
468 unsigned char visible
; /* Zero means don't display. */
469 unsigned char front_sticky
; /* Non-zero means text inserted just
470 before this interval goes into it. */
471 unsigned char rear_sticky
; /* Likewise for just after it. */
473 /* Properties of this interval.
474 The mark bit on this field says whether this particular interval
475 tree node has been visited. Since intervals should never be
476 shared, GC aborts if it seems to have visited an interval twice. */
480 typedef struct interval
*INTERVAL
;
482 /* Complain if object is not string or buffer type */
483 #define CHECK_STRING_OR_BUFFER(x, i) \
484 { if (XTYPE ((x)) != Lisp_String && XTYPE ((x)) != Lisp_Buffer) \
485 x = wrong_type_argument (Qbuffer_or_string_p, (x)); }
487 /* Macro used to conditionally compile intervals into certain data
488 structures. See, e.g., struct Lisp_String below. */
489 #define DECLARE_INTERVALS INTERVAL intervals;
491 /* Macro used to conditionally compile interval initialization into
492 certain code. See, e.g., alloc.c. */
493 #define INITIALIZE_INTERVAL(ptr,val) ptr->intervals = val
495 #else /* No text properties */
497 /* If no intervals are used, make the above definitions go away. */
499 #define CHECK_STRING_OR_BUFFER(x, i)
502 #define DECLARE_INTERVALS
503 #define INITIALIZE_INTERVAL(ptr,val)
505 #endif /* USE_TEXT_PROPERTIES */
507 /* In a cons, the markbit of the car is the gc mark bit */
511 Lisp_Object car
, cdr
;
514 /* Like a cons, but records info on where the text lives that it was read from */
515 /* This is not really in use now */
517 struct Lisp_Buffer_Cons
519 Lisp_Object car
, cdr
;
520 struct buffer
*buffer
;
524 /* In a string or vector, the sign bit of the `size' is the gc mark bit */
529 DECLARE_INTERVALS
/* `data' field must be last. */
530 unsigned char data
[1];
536 struct Lisp_Vector
*next
;
537 Lisp_Object contents
[1];
540 /* In a symbol, the markbit of the plist is used as the gc mark bit */
544 struct Lisp_String
*name
;
546 Lisp_Object function
;
548 struct Lisp_Symbol
*next
; /* -> next symbol in this obarray bucket */
553 Lisp_Object (*function
) ();
554 short min_args
, max_args
;
560 /* In a marker, the markbit of the chain field is used as the gc mark bit */
564 struct buffer
*buffer
;
570 #ifdef LISP_FLOAT_TYPE
571 /* Optional Lisp floating point type */
574 Lisp_Object type
; /* essentially used for mark-bit
575 and chaining when on free-list */
578 #endif /* LISP_FLOAT_TYPE */
580 /* A character, declared with the following typedef, is a member
581 of some character set associated with the current buffer. */
582 #ifndef _UCHAR_T /* Protect against something in ctab.h on AIX. */
584 typedef unsigned char UCHAR
;
587 /* Meanings of slots in a Lisp_Compiled: */
589 #define COMPILED_ARGLIST 0
590 #define COMPILED_BYTECODE 1
591 #define COMPILED_CONSTANTS 2
592 #define COMPILED_STACK_DEPTH 3
593 #define COMPILED_DOC_STRING 4
594 #define COMPILED_INTERACTIVE 5
596 /* Flag bits in a character. These also get used in termhooks.h.
597 Richard Stallman <rms@gnu.ai.mit.edu> thinks that MULE
598 (MUlti-Lingual Emacs) might need 18 bits for the character value
599 itself, so we probably shouldn't use any bits lower than 0x040000. */
600 #define CHAR_ALT (0x040000)
601 #define CHAR_SUPER (0x080000)
602 #define CHAR_HYPER (0x100000)
603 #define CHAR_SHIFT (0x200000)
604 #define CHAR_CTL (0x400000)
605 #define CHAR_META (0x800000)
608 /* The glyph datatype, used to represent characters on the display. */
610 /* The low eight bits are the character code, and the bits above them
611 are the numeric face ID. If FID is the face ID of a glyph on a
612 frame F, then F->display.x->faces[FID] contains the description of
613 that face. This is an int instead of a short, so we can support a
614 good bunch of face ID's; given that we have no mechanism for
615 tossing unused frame face ID's yet, we'll probably run out of 255
617 #define GLYPH unsigned int
619 /* Given a character code and a face ID, return the appropriate glyph. */
620 #define MAKE_GLYPH(char, face) ((char) | ((face) << 8))
622 /* Return a glyph's character code. */
623 #define GLYPH_CHAR(glyph) ((glyph) & 0xff)
625 /* Return a glyph's face ID. */
626 #define GLYPH_FACE(glyph) (((glyph) >> 8) & ((1 << 24) - 1))
629 /* Data type checking */
631 #define NILP(x) (XFASTINT (x) == XFASTINT (Qnil))
632 #define GC_NILP(x) GC_EQ (x, Qnil)
634 #ifdef LISP_FLOAT_TYPE
635 #define NUMBERP(x) (XTYPE (x) == Lisp_Int || XTYPE (x) == Lisp_Float)
637 #define NUMBERP(x) (XTYPE (x) == Lisp_Int)
640 #define INTEGERP(x) (XTYPE ((x)) == Lisp_Int)
641 #define SYMBOLP(x) (XTYPE ((x)) == Lisp_Symbol)
642 #define MARKERP(x) (XTYPE ((x)) == Lisp_Marker)
643 #define STRINGP(x) (XTYPE ((x)) == Lisp_String)
644 #define VECTORP(x) (XTYPE ((x)) == Lisp_Vector)
645 #define CONSP(x) (XTYPE ((x)) == Lisp_Cons)
646 #define COMPILEDP(x) (XTYPE ((x)) == Lisp_Compiled)
647 #define BUFFERP(x) (XTYPE ((x)) == Lisp_Buffer)
648 #define SUBRP(x) (XTYPE ((x)) == Lisp_Subr)
649 #define PROCESSP(x) (XTYPE ((x)) == Lisp_Process)
650 #define FRAMEP(x) (XTYPE ((x)) == Lisp_Frame)
651 #define WINDOWP(x) (XTYPE ((x)) == Lisp_Window)
652 #define WINDOW_CONFIGURATIONP(x) (XTYPE ((x)) == Lisp_Window_Configuration)
653 #ifdef LISP_FLOAT_TYPE
654 #define FLOATP(x) (XTYPE ((x)) == Lisp_Float)
656 #define FLOATP(x) (0)
658 #define OVERLAYP(x) (XTYPE ((x)) == Lisp_Overlay)
660 #define EQ(x, y) (XFASTINT (x) == XFASTINT (y))
661 #define GC_EQ(x, y) (XGCTYPE (x) == XGCTYPE (y) && XPNTR (x) == XPNTR (y))
663 #define CHECK_LIST(x, i) \
664 do { if ((XTYPE ((x)) != Lisp_Cons) && !NILP (x)) x = wrong_type_argument (Qlistp, (x)); } while (0)
666 #define CHECK_STRING(x, i) \
667 do { if (XTYPE ((x)) != Lisp_String) x = wrong_type_argument (Qstringp, (x)); } while (0)
669 #define CHECK_CONS(x, i) \
670 do { if (XTYPE ((x)) != Lisp_Cons) x = wrong_type_argument (Qconsp, (x)); } while (0)
672 #define CHECK_SYMBOL(x, i) \
673 do { if (XTYPE ((x)) != Lisp_Symbol) x = wrong_type_argument (Qsymbolp, (x)); } while (0)
675 #define CHECK_VECTOR(x, i) \
676 do { if (XTYPE ((x)) != Lisp_Vector) x = wrong_type_argument (Qvectorp, (x)); } while (0)
678 #define CHECK_BUFFER(x, i) \
679 do { if (XTYPE ((x)) != Lisp_Buffer) x = wrong_type_argument (Qbufferp, (x)); } while (0)
681 #define CHECK_WINDOW(x, i) \
682 do { if (XTYPE ((x)) != Lisp_Window) x = wrong_type_argument (Qwindowp, (x)); } while (0)
684 /* This macro rejects windows on the interior of the window tree as
685 "dead", which is what we want; this is an argument-checking macro, and
686 the user should never get access to interior windows.
688 A window of any sort, leaf or interior, is dead iff the buffer,
689 vchild, and hchild members are all nil. */
691 #define CHECK_LIVE_WINDOW(x, i) \
693 if (XTYPE ((x)) != Lisp_Window \
694 || NILP (XWINDOW ((x))->buffer)) \
695 x = wrong_type_argument (Qwindow_live_p, (x)); \
698 #define CHECK_PROCESS(x, i) \
699 do { if (XTYPE ((x)) != Lisp_Process) x = wrong_type_argument (Qprocessp, (x)); } while (0)
701 #define CHECK_NUMBER(x, i) \
702 do { if (XTYPE ((x)) != Lisp_Int) x = wrong_type_argument (Qintegerp, (x)); } while (0)
704 #define CHECK_NATNUM(x, i) \
705 do { if (XTYPE ((x)) != Lisp_Int || XINT ((x)) < 0) \
706 x = wrong_type_argument (Qnatnump, (x)); } while (0)
708 #define CHECK_MARKER(x, i) \
709 do { if (XTYPE ((x)) != Lisp_Marker) x = wrong_type_argument (Qmarkerp, (x)); } while (0)
711 #define CHECK_NUMBER_COERCE_MARKER(x, i) \
712 do { if (XTYPE ((x)) == Lisp_Marker) XFASTINT (x) = marker_position (x); \
713 else if (XTYPE ((x)) != Lisp_Int) x = wrong_type_argument (Qinteger_or_marker_p, (x)); } while (0)
715 #ifdef LISP_FLOAT_TYPE
721 #define XFLOATINT(n) extract_float((n))
723 #define CHECK_FLOAT(x, i) \
724 do { if (XTYPE (x) != Lisp_Float) \
725 x = wrong_type_argument (Qfloatp, (x)); } while (0)
727 #define CHECK_NUMBER_OR_FLOAT(x, i) \
728 do { if (XTYPE (x) != Lisp_Float && XTYPE (x) != Lisp_Int) \
729 x = wrong_type_argument (Qnumberp, (x)); } while (0)
731 #define CHECK_NUMBER_OR_FLOAT_COERCE_MARKER(x, i) \
732 do { if (XTYPE (x) == Lisp_Marker) XFASTINT (x) = marker_position (x); \
733 else if (XTYPE (x) != Lisp_Int && XTYPE (x) != Lisp_Float) \
734 x = wrong_type_argument (Qnumber_or_marker_p, (x)); } while (0)
736 #else /* Not LISP_FLOAT_TYPE */
738 #define CHECK_NUMBER_OR_FLOAT CHECK_NUMBER
740 #define CHECK_NUMBER_OR_FLOAT_COERCE_MARKER CHECK_NUMBER_COERCE_MARKER
742 #define XFLOATINT(n) XINT((n))
743 #endif /* LISP_FLOAT_TYPE */
745 #define CHECK_OVERLAY(x, i) \
746 do { if (XTYPE ((x)) != Lisp_Overlay) x = wrong_type_argument (Qoverlayp, (x));} while (0)
748 /* Cast pointers to this type to compare them. Some machines want int. */
749 #ifndef PNTR_COMPARISON_TYPE
750 #define PNTR_COMPARISON_TYPE unsigned int
753 /* Define a built-in function for calling from Lisp.
754 `lname' should be the name to give the function in Lisp,
755 as a null-terminated C string.
756 `fnname' should be the name of the function in C.
757 By convention, it starts with F.
758 `sname' should be the name for the C constant structure
759 that records information on this function for internal use.
760 By convention, it should be the same as `fnname' but with S instead of F.
761 It's too bad that C macros can't compute this from `fnname'.
762 `minargs' should be a number, the minimum number of arguments allowed.
763 `maxargs' should be a number, the maximum number of arguments allowed,
764 or else MANY or UNEVALLED.
765 MANY means pass a vector of evaluated arguments,
766 in the form of an integer number-of-arguments
767 followed by the address of a vector of Lisp_Objects
768 which contains the argument values.
769 UNEVALLED means pass the list of unevaluated arguments
770 `prompt' says how to read arguments for an interactive call.
771 This can be zero or a C string.
772 Zero means that interactive calls are not allowed.
773 A string is interpreted in a hairy way:
774 it should contain one line for each argument to be read, terminated by \n.
775 The first character of the line controls the type of parsing:
778 k -- read a key sequence and return it as a string.
779 a -- read a function name (symbol) with completion.
780 C -- read a command name (symbol) with completion.
781 v -- read a variable name (symbol) with completion.
782 b -- read a buffer name (a string) with completion.
783 B -- buffer name, may be existing buffer or may not be.
784 f -- read a file name, file must exist.
785 F -- read a file name, file need not exist.
787 c -- read a character and return it as a number.
788 p -- use the numeric value of the prefix argument.
789 P -- use raw value of prefix - can be nil, -, (NUMBER) or NUMBER.
790 x -- read a Lisp object from the minibuffer.
791 X -- read a Lisp form from the minibuffer and use its value.
792 A null string means call interactively with no arguments.
793 `doc' is documentation for the user.
797 #define DEFUN(lname, fnname, sname, minargs, maxargs, prompt, doc) \
798 Lisp_Object fnname (); \
799 struct Lisp_Subr sname = {fnname, minargs, maxargs, lname, prompt, 0}; \
804 /* This version of DEFUN declares a function prototype with the right
805 arguments, so we can catch errors with maxargs at compile-time. */
806 #define DEFUN(lname, fnname, sname, minargs, maxargs, prompt, doc) \
807 Lisp_Object fnname DEFUN_ARGS_ ## maxargs ; \
808 struct Lisp_Subr sname = {fnname, minargs, maxargs, lname, prompt, 0}; \
811 /* Note that the weird token-substitution semantics of ANSI C makes
812 this work for MANY and UNEVALLED. */
813 #define DEFUN_ARGS_MANY (int, Lisp_Object *)
814 #define DEFUN_ARGS_UNEVALLED (Lisp_Object)
815 #define DEFUN_ARGS_0 (void)
816 #define DEFUN_ARGS_1 (Lisp_Object)
817 #define DEFUN_ARGS_2 (Lisp_Object, Lisp_Object)
818 #define DEFUN_ARGS_3 (Lisp_Object, Lisp_Object, Lisp_Object)
819 #define DEFUN_ARGS_4 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object)
820 #define DEFUN_ARGS_5 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
822 #define DEFUN_ARGS_6 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
823 Lisp_Object, Lisp_Object)
824 #define DEFUN_ARGS_7 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
825 Lisp_Object, Lisp_Object, Lisp_Object)
829 is how we define the symbol for function `name' at start-up time. */
830 extern void defsubr ();
835 extern void defvar_lisp ();
836 extern void defvar_bool ();
837 extern void defvar_int ();
839 /* Macros we use to define forwarded Lisp variables.
840 These are used in the syms_of_FILENAME functions. */
842 #define DEFVAR_LISP(lname, vname, doc) defvar_lisp (lname, vname)
843 #define DEFVAR_LISP_NOPRO(lname, vname, doc) defvar_lisp_nopro (lname, vname)
844 #define DEFVAR_BOOL(lname, vname, doc) defvar_bool (lname, vname)
845 #define DEFVAR_INT(lname, vname, doc) defvar_int (lname, vname)
846 #define DEFVAR_PER_BUFFER(lname, vname, type, doc) \
847 defvar_per_buffer (lname, vname, type, 0)
849 /* Structure for recording Lisp call stack for backtrace purposes. */
851 /* The special binding stack holds the outer values of variables while
852 they are bound by a function application or a let form, stores the
853 code to be executed for Lisp unwind-protect forms, and stores the C
854 functions to be called for record_unwind_protect.
856 If func is non-zero, undoing this binding applies func to old_value;
857 This implements record_unwind_protect.
858 If func is zero and symbol is nil, undoing this binding evaluates
859 the list of forms in old_value; this implements Lisp's unwind-protect
861 Otherwise, undoing this binding stores old_value as symbol's value; this
862 undoes the bindings made by a let form or function call. */
865 Lisp_Object symbol
, old_value
;
866 Lisp_Object (*func
) ();
867 Lisp_Object unused
; /* Dividing by 16 is faster than by 12 */
870 extern struct specbinding
*specpdl
;
871 extern struct specbinding
*specpdl_ptr
;
872 extern int specpdl_size
;
874 /* Everything needed to describe an active condition case. */
877 /* The handler clauses and variable from the condition-case form. */
881 /* Used to effect the longjump out to the handler. */
882 struct catchtag
*tag
;
884 /* The next enclosing handler. */
885 struct handler
*next
;
888 extern struct handler
*handlerlist
;
890 extern struct catchtag
*catchlist
;
891 extern struct backtrace
*backtrace_list
;
893 /* An address near the bottom of the stack.
894 Tells GC how to save a copy of the stack. */
895 extern char *stack_bottom
;
897 /* Check quit-flag and quit if it is non-nil. */
900 if (!NILP (Vquit_flag) && NILP (Vinhibit_quit)) \
901 { Vquit_flag = Qnil; Fsignal (Qquit, Qnil); }
903 /* Nonzero if ought to quit now. */
905 #define QUITP (!NILP (Vquit_flag) && NILP (Vinhibit_quit))
907 /* 1 if CH is upper case. */
909 #define UPPERCASEP(CH) \
910 (XSTRING (current_buffer->downcase_table)->data[CH] != (CH))
912 /* 1 if CH is lower case. */
914 #define LOWERCASEP(CH) \
916 && XSTRING (current_buffer->upcase_table)->data[CH] != (CH))
918 /* 1 if CH is neither upper nor lower case. */
920 #define NOCASEP(CH) (XSTRING (current_buffer->upcase_table)->data[CH] == (CH))
922 /* Upcase a character, or make no change if that cannot be done. */
925 (XSTRING (current_buffer->downcase_table)->data[CH] == (CH) \
926 ? UPCASE1 (CH) : (CH))
928 /* Upcase a character known to be not upper case. */
930 #define UPCASE1(CH) (XSTRING (current_buffer->upcase_table)->data[CH])
932 /* Downcase a character, or make no change if that cannot be done. */
934 #define DOWNCASE(CH) (XSTRING (current_buffer->downcase_table)->data[CH])
936 /* Current buffer's map from characters to lower-case characters. */
938 #define DOWNCASE_TABLE XSTRING (current_buffer->downcase_table)->data
940 /* Table mapping each char to the next char with the same lowercase version.
941 This mapping is a no-op only for characters that don't have case. */
942 #define UPCASE_TABLE XSTRING (current_buffer->upcase_table)->data
944 extern Lisp_Object Vascii_downcase_table
, Vascii_upcase_table
;
946 /* number of bytes of structure consed since last GC */
948 extern int consing_since_gc
;
950 /* threshold for doing another gc */
952 extern int gc_cons_threshold
;
954 /* Structure for recording stack slots that need marking */
956 /* This is a chain of structures, each of which points at a Lisp_Object variable
957 whose value should be marked in garbage collection.
958 Normally every link of the chain is an automatic variable of a function,
959 and its `val' points to some argument or local variable of the function.
960 On exit to the function, the chain is set back to the value it had on entry.
961 This way, no link remains in the chain when the stack frame containing the
964 Every function that can call Feval must protect in this fashion all
965 Lisp_Object variables whose contents will be used again. */
967 extern struct gcpro
*gcprolist
;
972 Lisp_Object
*var
; /* Address of first protected variable */
973 int nvars
; /* Number of consecutive protected variables */
976 #define GCPRO1(varname) \
977 {gcpro1.next = gcprolist; gcpro1.var = &varname; gcpro1.nvars = 1; \
978 gcprolist = &gcpro1; }
980 #define GCPRO2(varname1, varname2) \
981 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
982 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
983 gcprolist = &gcpro2; }
985 #define GCPRO3(varname1, varname2, varname3) \
986 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
987 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
988 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
989 gcprolist = &gcpro3; }
991 #define GCPRO4(varname1, varname2, varname3, varname4) \
992 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
993 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
994 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
995 gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \
996 gcprolist = &gcpro4; }
998 /* Call staticpro (&var) to protect static variable `var'. */
1002 #define UNGCPRO (gcprolist = gcpro1.next)
1004 /* Evaluate expr, UNGCPRO, and then return the value of expr. I used
1005 to have a `do ... while' clause around this to make it interact
1006 with semicolons correctly, but this makes some compilers complain
1007 that the while is never reached. */
1008 #define RETURN_UNGCPRO(expr) \
1010 Lisp_Object ret_ungc_val; \
1011 ret_ungc_val = (expr); \
1013 return ret_ungc_val; \
1016 /* Defined in data.c */
1017 extern Lisp_Object Qnil
, Qt
, Qquote
, Qlambda
, Qsubr
, Qunbound
;
1018 extern Lisp_Object Qerror_conditions
, Qerror_message
, Qtop_level
;
1019 extern Lisp_Object Qerror
, Qquit
, Qwrong_type_argument
, Qargs_out_of_range
;
1020 extern Lisp_Object Qvoid_variable
, Qvoid_function
;
1021 extern Lisp_Object Qsetting_constant
, Qinvalid_read_syntax
;
1022 extern Lisp_Object Qinvalid_function
, Qwrong_number_of_arguments
, Qno_catch
;
1023 extern Lisp_Object Qend_of_file
, Qarith_error
;
1024 extern Lisp_Object Qbeginning_of_buffer
, Qend_of_buffer
, Qbuffer_read_only
;
1025 extern Lisp_Object Qmark_inactive
;
1027 extern Lisp_Object Qrange_error
, Qdomain_error
, Qsingularity_error
;
1028 extern Lisp_Object Qoverflow_error
, Qunderflow_error
;
1030 extern Lisp_Object Qintegerp
, Qnumberp
, Qnatnump
, Qsymbolp
, Qlistp
, Qconsp
;
1031 extern Lisp_Object Qstringp
, Qarrayp
, Qsequencep
, Qbufferp
;
1032 extern Lisp_Object Qchar_or_string_p
, Qmarkerp
, Qvectorp
;
1033 extern Lisp_Object Qinteger_or_marker_p
, Qnumber_or_marker_p
;
1034 extern Lisp_Object Qboundp
, Qfboundp
;
1035 extern Lisp_Object Qbuffer_or_string_p
;
1036 extern Lisp_Object Qcdr
;
1038 #ifdef LISP_FLOAT_TYPE
1039 extern Lisp_Object Qfloatp
, Qinteger_or_floatp
, Qinteger_or_float_or_marker_p
;
1040 #endif /* LISP_FLOAT_TYPE */
1042 extern Lisp_Object Qframep
;
1044 extern Lisp_Object
Feq (), Fnull (), Flistp (), Fconsp (), Fatom (), Fnlistp ();
1045 extern Lisp_Object
Fintegerp (), Fnatnump (), Fsymbolp ();
1046 extern Lisp_Object
Fvectorp (), Fstringp (), Farrayp (), Fsequencep ();
1047 extern Lisp_Object
Fbufferp (), Fmarkerp (), Fsubrp (), Fchar_or_string_p ();
1048 extern Lisp_Object
Finteger_or_marker_p ();
1049 #ifdef LISP_FLOAT_TYPE
1050 extern Lisp_Object
Ffloatp(), Finteger_or_floatp();
1051 extern Lisp_Object
Finteger_or_float_or_marker_p(), Ftruncate();
1052 #endif /* LISP_FLOAT_TYPE */
1054 extern Lisp_Object
Fcar (), Fcar_safe(), Fcdr (), Fcdr_safe();
1055 extern Lisp_Object
Fsetcar (), Fsetcdr ();
1056 extern Lisp_Object
Fboundp (), Ffboundp (), Fmakunbound (), Ffmakunbound ();
1057 extern Lisp_Object
Fsymbol_function (), Fsymbol_plist (), Fsymbol_name ();
1058 extern Lisp_Object
indirect_function (), Findirect_function ();
1059 extern Lisp_Object
Ffset (), Fsetplist ();
1060 extern Lisp_Object
Fsymbol_value (), find_symbol_value (), Fset ();
1061 extern Lisp_Object
Fdefault_value (), Fset_default (), Fdefault_boundp ();
1063 extern Lisp_Object
Faref (), Faset (), Farray_length ();
1065 extern Lisp_Object
Fstring_to_number (), Fnumber_to_string ();
1066 extern Lisp_Object
Feqlsign (), Fgtr (), Flss (), Fgeq (), Fleq ();
1067 extern Lisp_Object
Fneq (), Fzerop ();
1068 extern Lisp_Object
Fplus (), Fminus (), Ftimes (), Fquo (), Frem ();
1069 extern Lisp_Object
Fmax (), Fmin ();
1070 extern Lisp_Object
Flogand (), Flogior (), Flogxor (), Flognot ();
1071 extern Lisp_Object
Flsh (), Fash ();
1073 extern Lisp_Object
Fadd1 (), Fsub1 ();
1075 extern Lisp_Object
make_number ();
1076 extern Lisp_Object
long_to_cons ();
1077 extern unsigned long cons_to_long ();
1078 extern void args_out_of_range ();
1079 extern void args_out_of_range_3 ();
1080 extern Lisp_Object
wrong_type_argument ();
1081 #ifdef LISP_FLOAT_TYPE
1082 extern Lisp_Object
Ffloat_to_int(), Fint_to_float();
1083 extern double extract_float();
1084 extern Lisp_Object
make_float ();
1085 extern Lisp_Object
Ffloat ();
1086 #endif /* LISP_FLOAT_TYPE */
1088 /* Defined in fns.c */
1089 extern Lisp_Object Qstring_lessp
;
1090 extern Lisp_Object Vfeatures
;
1091 extern Lisp_Object
Fidentity (), Frandom ();
1092 extern Lisp_Object
Flength ();
1093 extern Lisp_Object
Fappend (), Fconcat (), Fvconcat (), Fcopy_sequence ();
1094 extern Lisp_Object
Fsubstring ();
1095 extern Lisp_Object
Fnth (), Fnthcdr (), Fmemq (), Fassq (), Fassoc ();
1096 extern Lisp_Object
Frassq (), Fdelq (), Fsort ();
1097 extern Lisp_Object
Freverse (), Fnreverse (), Fget (), Fput (), Fequal ();
1098 extern Lisp_Object
Ffillarray (), Fnconc (), Fmapcar (), Fmapconcat ();
1099 extern Lisp_Object
Fy_or_n_p (), do_yes_or_no_p ();
1100 extern Lisp_Object
Ffeaturep (), Frequire () , Fprovide ();
1101 extern Lisp_Object
concat2 (), nconc2 ();
1102 extern Lisp_Object
assq_no_quit ();
1103 extern Lisp_Object
Fcopy_alist ();
1105 /* Defined in alloc.c */
1106 extern Lisp_Object Vpurify_flag
;
1107 extern Lisp_Object
Fcons (), Flist(), Fmake_list ();
1108 extern Lisp_Object
Fmake_vector (), Fvector (), Fmake_symbol (), Fmake_marker ();
1109 extern Lisp_Object
Fmake_string (), build_string (), make_string ();
1110 extern Lisp_Object
make_event_array (), make_uninit_string ();
1111 extern Lisp_Object
Fpurecopy (), make_pure_string ();
1112 extern Lisp_Object
pure_cons (), make_pure_vector ();
1113 extern Lisp_Object
Fgarbage_collect ();
1114 extern Lisp_Object
Fmake_byte_code ();
1116 /* Defined in print.c */
1117 extern Lisp_Object Vprin1_to_string_buffer
;
1118 extern Lisp_Object
Fprin1 (), Fprin1_to_string (), Fprinc ();
1119 extern Lisp_Object
Fterpri (), Fprint ();
1120 extern Lisp_Object Vstandard_output
, Qstandard_output
;
1121 extern Lisp_Object Qexternal_debugging_output
;
1122 extern void temp_output_buffer_setup (), temp_output_buffer_show ();
1123 extern int print_level
, print_escape_newlines
;
1124 extern Lisp_Object Qprint_escape_newlines
;
1126 /* Defined in lread.c */
1127 extern Lisp_Object Qvariable_documentation
, Qstandard_input
;
1128 extern Lisp_Object Vobarray
, Vstandard_input
;
1129 extern Lisp_Object
Fread (), Fread_from_string ();
1130 extern Lisp_Object
Fintern (), Fintern_soft (), Fload ();
1131 extern Lisp_Object
Fget_file_char (), Fread_char ();
1132 extern Lisp_Object
read_filtered_event ();
1133 extern Lisp_Object
Feval_current_buffer (), Feval_region ();
1134 extern Lisp_Object
intern (), oblookup ();
1135 #define LOADHIST_ATTACH(x) \
1136 if (initialized) Vcurrent_load_list = Fcons (x, Vcurrent_load_list)
1137 extern Lisp_Object Vcurrent_load_list
;
1138 extern Lisp_Object Vload_history
;
1140 /* Defined in eval.c */
1141 extern Lisp_Object Qautoload
, Qexit
, Qinteractive
, Qcommandp
, Qdefun
, Qmacro
;
1142 extern Lisp_Object Vinhibit_quit
, Qinhibit_quit
, Vquit_flag
;
1143 extern Lisp_Object Vmocklisp_arguments
, Qmocklisp
, Qmocklisp_arguments
;
1144 extern Lisp_Object Vautoload_queue
;
1145 extern Lisp_Object Vrun_hooks
;
1146 extern Lisp_Object
Fand (), For (), Fif (), Fprogn (), Fprog1 (), Fprog2 ();
1147 extern Lisp_Object
Fsetq (), Fquote ();
1148 extern Lisp_Object
Fuser_variable_p (), Finteractive_p ();
1149 extern Lisp_Object
Fdefun (), Flet (), FletX (), Fwhile ();
1150 extern Lisp_Object
Fcatch (), Fthrow (), Funwind_protect ();
1151 extern Lisp_Object
Fcondition_case (), Fsignal ();
1152 extern Lisp_Object
Ffunction_type (), Fautoload (), Fcommandp ();
1153 extern Lisp_Object
Feval (), Fapply (), Ffuncall ();
1154 extern Lisp_Object
Fglobal_set (), Fglobal_value (), Fbacktrace ();
1155 extern Lisp_Object
apply1 (), call0 (), call1 (), call2 (), call3 ();
1156 extern Lisp_Object
apply_lambda ();
1157 extern Lisp_Object
internal_catch ();
1158 extern Lisp_Object
internal_condition_case ();
1159 extern Lisp_Object
unbind_to ();
1160 extern void error ();
1161 extern Lisp_Object
un_autoload ();
1163 /* Defined in editfns.c */
1164 extern Lisp_Object Vprefix_arg
, Qminus
, Vcurrent_prefix_arg
;
1165 extern Lisp_Object
Fgoto_char ();
1166 extern Lisp_Object
Fpoint_min_marker (), Fpoint_max_marker ();
1167 extern Lisp_Object
Fpoint_min (), Fpoint_max ();
1168 extern Lisp_Object
Fpoint (), Fpoint_marker (), Fmark_marker ();
1169 extern Lisp_Object
Ffollowing_char (), Fprevious_char (), Fchar_after ();
1170 extern Lisp_Object
Finsert ();
1171 extern Lisp_Object
Feolp (), Feobp (), Fbolp (), Fbobp ();
1172 extern Lisp_Object
Fformat (), format1 ();
1173 extern Lisp_Object
make_buffer_string (), Fbuffer_substring ();
1174 extern Lisp_Object
Fbuffer_string ();
1175 extern Lisp_Object
Fstring_equal (), Fstring_lessp (), Fbuffer_substring_lessp ();
1176 extern Lisp_Object
save_excursion_save (), save_restriction_save ();
1177 extern Lisp_Object
save_excursion_restore (), save_restriction_restore ();
1178 extern Lisp_Object
Fchar_to_string ();
1180 /* defined in buffer.c */
1181 extern Lisp_Object Vbuffer_alist
, Vinhibit_read_only
;
1182 extern Lisp_Object
Fget_buffer (), Fget_buffer_create (), Fset_buffer ();
1183 extern Lisp_Object
Fbarf_if_buffer_read_only ();
1184 extern Lisp_Object
Fcurrent_buffer (), Fswitch_to_buffer (), Fpop_to_buffer ();
1185 extern Lisp_Object
Fother_buffer ();
1186 extern Lisp_Object Qoverlayp
;
1187 extern struct buffer
*all_buffers
;
1189 /* defined in marker.c */
1191 extern Lisp_Object
Fmarker_position (), Fmarker_buffer ();
1192 extern Lisp_Object
Fcopy_marker ();
1194 /* Defined in fileio.c */
1196 extern Lisp_Object Qfile_error
;
1197 extern Lisp_Object
Ffind_file_name_handler ();
1198 extern Lisp_Object
Ffile_name_as_directory ();
1199 extern Lisp_Object
Fexpand_file_name (), Ffile_name_nondirectory ();
1200 extern Lisp_Object
Fsubstitute_in_file_name ();
1201 extern Lisp_Object
Ffile_symlink_p ();
1202 extern Lisp_Object
Fverify_visited_file_modtime ();
1203 extern Lisp_Object
Ffile_exists_p ();
1204 extern Lisp_Object
Fdirectory_file_name ();
1205 extern Lisp_Object
Ffile_name_directory ();
1206 extern Lisp_Object
expand_and_dir_to_file ();
1207 extern Lisp_Object
Ffile_accessible_directory_p ();
1209 /* Defined in abbrev.c */
1211 extern Lisp_Object Vfundamental_mode_abbrev_table
;
1213 /* defined in search.c */
1214 extern Lisp_Object
Fstring_match ();
1215 extern Lisp_Object
Fscan_buffer ();
1217 /* defined in minibuf.c */
1219 extern Lisp_Object last_minibuf_string
;
1220 extern Lisp_Object
read_minibuf (), Fcompleting_read ();
1221 extern Lisp_Object
Fread_from_minibuffer ();
1222 extern Lisp_Object
Fread_variable (), Fread_buffer (), Fread_key_sequence ();
1223 extern Lisp_Object
Fread_minibuffer (), Feval_minibuffer ();
1224 extern Lisp_Object
Fread_string (), Fread_file_name ();
1225 extern Lisp_Object
Fread_no_blanks_input ();
1227 /* Defined in callint.c */
1229 extern Lisp_Object Vcommand_history
;
1230 extern Lisp_Object Qcall_interactively
;
1231 extern Lisp_Object
Fcall_interactively ();
1232 extern Lisp_Object
Fprefix_numeric_value ();
1234 /* defined in casefiddle.c */
1236 extern Lisp_Object
Fdowncase (), Fupcase (), Fcapitalize ();
1238 /* defined in keyboard.c */
1240 extern Lisp_Object Qdisabled
;
1241 extern Lisp_Object Vhelp_form
, Vtop_level
;
1242 extern Lisp_Object
Fdiscard_input (), Frecursive_edit ();
1243 extern Lisp_Object
Fcommand_execute (), Finput_pending_p ();
1244 extern Lisp_Object Qvertical_scroll_bar
;
1246 /* defined in keymap.c */
1248 extern Lisp_Object Qkeymap
, Qmenu_bar
;
1249 extern Lisp_Object current_global_map
;
1250 extern Lisp_Object
Fkey_description (), Fsingle_key_description ();
1251 extern Lisp_Object
Fwhere_is_internal ();
1252 extern Lisp_Object
access_keymap (), store_in_keymap ();
1253 extern Lisp_Object
get_keyelt (), get_keymap();
1255 /* defined in indent.c */
1256 extern Lisp_Object
Fvertical_motion (), Findent_to (), Fcurrent_column ();
1258 /* defined in window.c */
1259 extern Lisp_Object Qwindowp
, Qwindow_live_p
;
1260 extern Lisp_Object
Fget_buffer_window ();
1261 extern Lisp_Object
Fsave_window_excursion ();
1262 extern Lisp_Object
Fset_window_configuration (), Fcurrent_window_configuration ();
1263 extern Lisp_Object
Fcoordinates_in_window_p ();
1264 extern Lisp_Object
Fwindow_at ();
1265 extern int window_internal_height (), window_internal_width ();
1267 /* defined in frame.c */
1268 extern Lisp_Object
Fframep ();
1269 extern Lisp_Object
Fselect_frame ();
1270 extern Lisp_Object
Ffocus_frame ();
1271 extern Lisp_Object
Funfocus_frame ();
1272 extern Lisp_Object
Fselected_frame ();
1273 extern Lisp_Object
Fwindow_frame ();
1274 extern Lisp_Object
Fframe_root_window ();
1275 extern Lisp_Object
Fframe_selected_window ();
1276 extern Lisp_Object
Fframe_list ();
1277 extern Lisp_Object
Fnext_frame ();
1278 extern Lisp_Object
Fdelete_frame ();
1279 extern Lisp_Object
Fread_mouse_position ();
1280 extern Lisp_Object
Fset_mouse_position ();
1281 extern Lisp_Object
Fmake_frame_visible ();
1282 extern Lisp_Object
Fmake_frame_invisible ();
1283 extern Lisp_Object
Ficonify_frame ();
1284 extern Lisp_Object
Fdeiconify_frame ();
1285 extern Lisp_Object
Fframe_visible_p ();
1286 extern Lisp_Object
Fvisible_frame_list ();
1287 extern Lisp_Object
Fframe_parameters ();
1288 extern Lisp_Object
Fmodify_frame_parameters ();
1289 extern Lisp_Object
Fframe_pixel_size ();
1290 extern Lisp_Object
Fframe_height ();
1291 extern Lisp_Object
Fframe_width ();
1292 extern Lisp_Object
Fset_frame_height ();
1293 extern Lisp_Object
Fset_frame_width ();
1294 extern Lisp_Object
Fset_frame_size ();
1295 extern Lisp_Object
Fset_frame_position ();
1297 extern Lisp_Object
Frubber_band_rectangle ();
1298 #endif /* HAVE_X11 */
1300 /* defined in emacs.c */
1301 extern Lisp_Object
decode_env_path ();
1302 extern Lisp_Object Vinvocation_name
, Vinvocation_directory
;
1303 void shut_down_emacs ( /* int signal, int no_x, Lisp_Object stuff */ );
1304 /* Nonzero means don't do interactive redisplay and don't change tty modes */
1305 extern int noninteractive
;
1306 /* Nonzero means don't do use window-system-specific display code */
1307 extern int inhibit_window_system
;
1309 /* defined in process.c */
1310 extern Lisp_Object
Fget_process (), Fget_buffer_process (), Fprocessp ();
1311 extern Lisp_Object
Fprocess_status (), Fkill_process ();
1313 /* defined in callproc.c */
1314 extern Lisp_Object Vexec_path
, Vexec_directory
, Vdata_directory
;
1316 /* defined in doc.c */
1317 extern Lisp_Object Vdoc_file_name
;
1318 extern Lisp_Object
Fsubstitute_command_keys ();
1319 extern Lisp_Object
Fdocumentation (), Fdocumentation_property ();
1321 /* defined in bytecode.c */
1322 extern Lisp_Object Qbytecode
;
1323 extern Lisp_Object
Fbyte_code ();
1325 /* defined in macros.c */
1326 extern Lisp_Object Qexecute_kbd_macro
;
1327 extern Lisp_Object
Fexecute_kbd_macro ();
1329 /* defined in undo.c */
1330 extern Lisp_Object
Fundo_boundary ();
1331 extern Lisp_Object
truncate_undo_list ();
1333 /* defined in textprop.c */
1334 extern Lisp_Object Qmodification_hooks
;
1335 extern Lisp_Object Qinsert_in_front_hooks
, Qinsert_behind_hooks
;
1336 extern Lisp_Object
Fnext_property_change ();
1337 extern Lisp_Object
Fnext_single_property_change ();
1339 /* Nonzero means Emacs has already been initialized.
1340 Used during startup to detect startup of dumped Emacs. */
1341 extern int initialized
;
1343 extern int immediate_quit
; /* Nonzero means ^G can quit instantly */
1345 extern void debugger ();
1347 extern char *getenv (), *ctime (), *getwd ();
1348 extern long *xmalloc (), *xrealloc ();
1349 extern void xfree ();
1351 extern char *egetenv ();