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)
261 /* Two flags that are set during GC. On some machines, these flags
262 are defined differently by the m- file. */
264 /* This is set in the car of a cons and in the plist slot of a symbol
265 to indicate it is marked. Likewise in the plist slot of an interval,
266 the chain slot of a marker, the type slot of a float, and the name
269 In strings, this bit in the size field indicates that the string
270 is a "large" one, one which was separately malloc'd
271 rather than being part of a string block. */
273 #define MARKBIT (1 << (VALBITS + GCTYPEBITS))
275 /* In the size word of a vector, this bit means the vector has been marked.
276 In the size word of a large string, likewise. */
278 #ifndef ARRAY_MARK_FLAG
279 #define ARRAY_MARK_FLAG ((MARKBIT >> 1) & ~MARKBIT)
280 #endif /* no ARRAY_MARK_FLAG */
282 #if ARRAY_MARK_FLAG == MARKBIT
286 #endif /* NO_UNION_TYPE */
288 /* These macros extract various sorts of values from a Lisp_Object.
289 For example, if tem is a Lisp_Object whose type is Lisp_Cons,
290 XCONS (tem) is the struct Lisp_Cons * pointing to the memory for that cons. */
294 /* One need to override this if there must be high bits set in data space
295 (doing the result of the below & ((1 << (GCTYPE + 1)) - 1) would work
296 on all machines, but would penalise machines which don't need it)
299 #define XTYPE(a) ((enum Lisp_Type) ((a) >> VALBITS))
303 #define XSETTYPE(a, b) ((a) = XUINT (a) | ((int)(b) << VALBITS))
306 /* Use XFASTINT for fast retrieval and storage of integers known
307 to be positive. This takes advantage of the fact that Lisp_Int is 0. */
308 #define XFASTINT(a) (a)
310 /* Extract the value of a Lisp_Object as a signed integer. */
312 #ifndef XINT /* Some machines need to do this differently. */
313 #define XINT(a) (((a) << (INTBITS-VALBITS)) >> (INTBITS-VALBITS))
316 /* Extract the value as an unsigned integer. This is a basis
317 for extracting it as a pointer to a structure in storage. */
320 #define XUINT(a) ((a) & VALMASK)
325 /* In this representation, data is found in two widely separated segments. */
326 extern int pure_size
;
328 (XUINT (a) | (XUINT (a) > pure_size ? DATA_SEG_BITS : PURE_SEG_BITS))
329 #else /* not HAVE_SHM */
331 /* This case is used for the rt-pc.
332 In the diffs I was given, it checked for ptr = 0
333 and did not adjust it in that case.
334 But I don't think that zero should ever be found
335 in a Lisp object whose data type says it points to something. */
336 #define XPNTR(a) (XUINT (a) | DATA_SEG_BITS)
338 #define XPNTR(a) XUINT (a)
340 #endif /* not HAVE_SHM */
341 #endif /* no XPNTR */
344 #define XSETINT(a, b) ((a) = ((a) & ~VALMASK) | ((b) & VALMASK))
348 #define XSETUINT(a, b) XSETINT (a, b)
352 #define XSETPNTR(a, b) XSETINT (a, b)
356 #define XSET(var, type, ptr) \
357 ((var) = ((int)(type) << VALBITS) + ((int) (ptr) & VALMASK))
360 /* During garbage collection, XGCTYPE must be used for extracting types
361 so that the mark bit is ignored. XMARKBIT accesses the markbit.
362 Markbits are used only in particular slots of particular structure types.
363 Other markbits are always zero.
364 Outside of garbage collection, all mark bits are always zero. */
367 #define XGCTYPE(a) ((enum Lisp_Type) (((a) >> VALBITS) & GCTYPEMASK))
370 #if VALBITS + GCTYPEBITS == INTBITS - 1
371 /* Make XMARKBIT faster if mark bit is sign bit. */
373 #define XMARKBIT(a) ((a) < 0)
375 #endif /* markbit is sign bit */
378 #define XMARKBIT(a) ((a) & MARKBIT)
382 #define XSETMARKBIT(a,b) ((a) = ((a) & ~MARKBIT) | ((b) ? MARKBIT : 0))
386 #define XMARK(a) ((a) |= MARKBIT)
390 #define XUNMARK(a) ((a) &= ~MARKBIT)
393 #endif /* NO_UNION_TYPE */
395 #ifndef NO_UNION_TYPE
397 #define XTYPE(a) ((enum Lisp_Type) (a).u.type)
398 #define XSETTYPE(a, b) ((a).u.type = (char) (b))
400 /* Use XFASTINT for fast retrieval and storage of integers known
401 to be positive. This takes advantage of the fact that Lisp_Int is 0. */
402 #define XFASTINT(a) ((a).i)
404 #ifdef EXPLICIT_SIGN_EXTEND
405 /* Make sure we sign-extend; compilers have been known to fail to do so. */
406 #define XINT(a) (((a).i << 8) >> 8)
408 #define XINT(a) ((a).s.val)
409 #endif /* EXPLICIT_SIGN_EXTEND */
411 #define XUINT(a) ((a).u.val)
412 #define XPNTR(a) ((a).u.val)
413 #define XSETINT(a, b) ((a).s.val = (int) (b))
414 #define XSETUINT(a, b) ((a).s.val = (int) (b))
415 #define XSETPNTR(a, b) ((a).s.val = (int) (b))
417 #define XSET(var, vartype, ptr) \
418 (((var).s.type = ((char) (vartype))), ((var).s.val = ((int) (ptr))))
420 /* During garbage collection, XGCTYPE must be used for extracting types
421 so that the mark bit is ignored. XMARKBIT access the markbit.
422 Markbits are used only in particular slots of particular structure types.
423 Other markbits are always zero.
424 Outside of garbage collection, all mark bits are always zero. */
426 #define XGCTYPE(a) ((a).gu.type)
427 #define XMARKBIT(a) ((a).gu.markbit)
428 #define XSETMARKBIT(a,b) (XMARKBIT(a) = (b))
429 #define XMARK(a) (XMARKBIT(a) = 1)
430 #define XUNMARK(a) (XMARKBIT(a) = 0)
432 #endif /* NO_UNION_TYPE */
435 #define XCONS(a) ((struct Lisp_Cons *) XPNTR(a))
436 #define XBUFFER(a) ((struct buffer *) XPNTR(a))
437 #define XVECTOR(a) ((struct Lisp_Vector *) XPNTR(a))
438 #define XSUBR(a) ((struct Lisp_Subr *) XPNTR(a))
439 #define XSTRING(a) ((struct Lisp_String *) XPNTR(a))
440 #define XSYMBOL(a) ((struct Lisp_Symbol *) XPNTR(a))
441 #define XFUNCTION(a) ((Lisp_Object (*)()) XPNTR(a))
442 #define XMARKER(a) ((struct Lisp_Marker *) XPNTR(a))
443 #define XOBJFWD(a) ((Lisp_Object *) XPNTR(a))
444 #define XINTPTR(a) ((int *) XPNTR(a))
445 #define XWINDOW(a) ((struct window *) XPNTR(a))
446 #define XPROCESS(a) ((struct Lisp_Process *) XPNTR(a))
447 #define XFLOAT(a) ((struct Lisp_Float *) XPNTR(a))
449 #define XSETCONS(a, b) XSETPNTR(a, (int) (b))
450 #define XSETBUFFER(a, b) XSETPNTR(a, (int) (b))
451 #define XSETVECTOR(a, b) XSETPNTR(a, (int) (b))
452 #define XSETSUBR(a, b) XSETPNTR(a, (int) (b))
453 #define XSETSTRING(a, b) XSETPNTR(a, (int) (b))
454 #define XSETSYMBOL(a, b) XSETPNTR(a, (int) (b))
455 #define XSETFUNCTION(a, b) XSETPNTR(a, (int) (b))
456 #define XSETMARKER(a, b) XSETPNTR(a, (int) (b))
457 #define XSETOBJFWD(a, b) XSETPNTR(a, (int) (b))
458 #define XSETINTPTR(a, b) XSETPNTR(a, (int) (b))
459 #define XSETWINDOW(a, b) XSETPNTR(a, (int) (b))
460 #define XSETPROCESS(a, b) XSETPNTR(a, (int) (b))
461 #define XSETFLOAT(a, b) XSETPNTR(a, (int) (b))
463 #ifdef USE_TEXT_PROPERTIES
464 /* Basic data type for use of intervals. See the macros in intervals.h */
468 /* The first group of entries deal with the tree structure. */
470 unsigned int total_length
; /* Length of myself and both children. */
471 unsigned int position
; /* Cache of interval's character position */
472 struct interval
*left
; /* Intervals which precede me. */
473 struct interval
*right
; /* Intervals which succeed me. */
475 /* Parent in the tree, or the Lisp_Object containing this interval tree.
477 The mark bit on the root interval of an interval tree says
478 whether we have started (and possibly finished) marking the
479 tree. If GC comes across an interval tree whose root's parent
480 field has its markbit set, it leaves the tree alone.
482 You'd think we could store this information in the parent object
483 somewhere (after all, that should be visited once and then
484 ignored too, right?), but strings are GC'd strangely. */
485 struct interval
*parent
;
487 /* The remaining components are `properties' of the interval.
488 The first four are duplicates for things which can be on the list,
489 for purposes of speed. */
491 unsigned char write_protect
; /* Non-zero means can't modify. */
492 unsigned char visible
; /* Zero means don't display. */
493 unsigned char front_sticky
; /* Non-zero means text inserted just
494 before this interval goes into it. */
495 unsigned char rear_sticky
; /* Likewise for just after it. */
497 /* Properties of this interval.
498 The mark bit on this field says whether this particular interval
499 tree node has been visited. Since intervals should never be
500 shared, GC aborts if it seems to have visited an interval twice. */
504 typedef struct interval
*INTERVAL
;
506 /* Complain if object is not string or buffer type */
507 #define CHECK_STRING_OR_BUFFER(x, i) \
508 { if (XTYPE ((x)) != Lisp_String && XTYPE ((x)) != Lisp_Buffer) \
509 x = wrong_type_argument (Qbuffer_or_string_p, (x)); }
511 /* Macro used to conditionally compile intervals into certain data
512 structures. See, e.g., struct Lisp_String below. */
513 #define DECLARE_INTERVALS INTERVAL intervals;
515 /* Macro used to conditionally compile interval initialization into
516 certain code. See, e.g., alloc.c. */
517 #define INITIALIZE_INTERVAL(ptr,val) ptr->intervals = val
519 #else /* No text properties */
521 /* If no intervals are used, make the above definitions go away. */
523 #define CHECK_STRING_OR_BUFFER(x, i)
526 #define DECLARE_INTERVALS
527 #define INITIALIZE_INTERVAL(ptr,val)
529 #endif /* USE_TEXT_PROPERTIES */
531 /* In a cons, the markbit of the car is the gc mark bit */
535 Lisp_Object car
, cdr
;
538 /* Like a cons, but records info on where the text lives that it was read from */
539 /* This is not really in use now */
541 struct Lisp_Buffer_Cons
543 Lisp_Object car
, cdr
;
544 struct buffer
*buffer
;
548 /* In a string or vector, the sign bit of the `size' is the gc mark bit */
553 DECLARE_INTERVALS
/* `data' field must be last. */
554 unsigned char data
[1];
560 struct Lisp_Vector
*next
;
561 Lisp_Object contents
[1];
564 /* In a symbol, the markbit of the plist is used as the gc mark bit */
568 struct Lisp_String
*name
;
570 Lisp_Object function
;
572 struct Lisp_Symbol
*next
; /* -> next symbol in this obarray bucket */
577 Lisp_Object (*function
) ();
578 short min_args
, max_args
;
584 /* In a marker, the markbit of the chain field is used as the gc mark bit */
588 struct buffer
*buffer
;
594 #ifdef LISP_FLOAT_TYPE
595 /* Optional Lisp floating point type */
598 Lisp_Object type
; /* essentially used for mark-bit
599 and chaining when on free-list */
602 #endif /* LISP_FLOAT_TYPE */
604 /* A character, declared with the following typedef, is a member
605 of some character set associated with the current buffer. */
606 #ifndef _UCHAR_T /* Protect against something in ctab.h on AIX. */
608 typedef unsigned char UCHAR
;
611 /* Meanings of slots in a Lisp_Compiled: */
613 #define COMPILED_ARGLIST 0
614 #define COMPILED_BYTECODE 1
615 #define COMPILED_CONSTANTS 2
616 #define COMPILED_STACK_DEPTH 3
617 #define COMPILED_DOC_STRING 4
618 #define COMPILED_INTERACTIVE 5
620 /* Flag bits in a character. These also get used in termhooks.h.
621 Richard Stallman <rms@gnu.ai.mit.edu> thinks that MULE
622 (MUlti-Lingual Emacs) might need 18 bits for the character value
623 itself, so we probably shouldn't use any bits lower than 0x040000. */
624 #define CHAR_ALT (0x040000)
625 #define CHAR_SUPER (0x080000)
626 #define CHAR_HYPER (0x100000)
627 #define CHAR_SHIFT (0x200000)
628 #define CHAR_CTL (0x400000)
629 #define CHAR_META (0x800000)
633 /* Use this for turning a (void *) into a Lisp_Object, as when the
634 Lisp_Object is passed into a toolkit callback function. */
635 #define VOID_TO_LISP(larg,varg) \
636 do { ((larg) = ((Lisp_Object) (varg))); } while (0)
637 #define CVOID_TO_LISP VOID_TO_LISP
639 /* Use this for turning a Lisp_Object into a (void *), as when the
640 Lisp_Object is passed into a toolkit callback function. */
641 #define LISP_TO_VOID(larg) ((void *) (larg))
642 #define LISP_TO_CVOID(varg) ((const void *) (larg))
644 #else /* not NO_UNION_TYPE */
645 /* Use this for turning a (void *) into a Lisp_Object, as when the
646 Lisp_Object is passed into a toolkit callback function. */
647 #define VOID_TO_LISP(larg,varg) \
648 do { ((larg).v = (void *) (varg)); } while (0)
649 #define CVOID_TO_LISP(larg,varg) \
650 do { ((larg).cv = (const void *) (varg)); } while (0)
652 /* Use this for turning a Lisp_Object into a (void *), as when the
653 Lisp_Object is passed into a toolkit callback function. */
654 #define LISP_TO_VOID(larg) ((larg).v)
655 #define LISP_TO_CVOID(larg) ((larg).cv)
656 #endif /* not NO_UNION_TYPE */
657 #endif /* USE_X_TOOLKIT */
660 /* The glyph datatype, used to represent characters on the display. */
662 /* The low eight bits are the character code, and the bits above them
663 are the numeric face ID. If FID is the face ID of a glyph on a
664 frame F, then F->display.x->faces[FID] contains the description of
665 that face. This is an int instead of a short, so we can support a
666 good bunch of face ID's; given that we have no mechanism for
667 tossing unused frame face ID's yet, we'll probably run out of 255
669 #define GLYPH unsigned int
671 /* Given a character code and a face ID, return the appropriate glyph. */
672 #define MAKE_GLYPH(char, face) ((char) | ((face) << 8))
674 /* Return a glyph's character code. */
675 #define GLYPH_CHAR(glyph) ((glyph) & 0xff)
677 /* Return a glyph's face ID. */
678 #define GLYPH_FACE(glyph) (((glyph) >> 8) & ((1 << 24) - 1))
680 /* The ID of the mode line highlighting face. */
681 #define GLYPH_MODE_LINE_FACE 1
683 /* Data type checking */
685 #define NILP(x) (XFASTINT (x) == XFASTINT (Qnil))
686 #define GC_NILP(x) GC_EQ (x, Qnil)
688 #ifdef LISP_FLOAT_TYPE
689 #define NUMBERP(x) (XTYPE (x) == Lisp_Int || XTYPE (x) == Lisp_Float)
691 #define NUMBERP(x) (XTYPE (x) == Lisp_Int)
694 #define INTEGERP(x) (XTYPE ((x)) == Lisp_Int)
695 #define SYMBOLP(x) (XTYPE ((x)) == Lisp_Symbol)
696 #define MARKERP(x) (XTYPE ((x)) == Lisp_Marker)
697 #define STRINGP(x) (XTYPE ((x)) == Lisp_String)
698 #define VECTORP(x) (XTYPE ((x)) == Lisp_Vector)
699 #define CONSP(x) (XTYPE ((x)) == Lisp_Cons)
700 #define COMPILEDP(x) (XTYPE ((x)) == Lisp_Compiled)
701 #define BUFFERP(x) (XTYPE ((x)) == Lisp_Buffer)
702 #define SUBRP(x) (XTYPE ((x)) == Lisp_Subr)
703 #define PROCESSP(x) (XTYPE ((x)) == Lisp_Process)
704 #define FRAMEP(x) (XTYPE ((x)) == Lisp_Frame)
705 #define WINDOWP(x) (XTYPE ((x)) == Lisp_Window)
706 #define WINDOW_CONFIGURATIONP(x) (XTYPE ((x)) == Lisp_Window_Configuration)
707 #ifdef LISP_FLOAT_TYPE
708 #define FLOATP(x) (XTYPE ((x)) == Lisp_Float)
710 #define FLOATP(x) (0)
712 #define OVERLAYP(x) (XTYPE ((x)) == Lisp_Overlay)
714 #define EQ(x, y) (XFASTINT (x) == XFASTINT (y))
715 #define GC_EQ(x, y) (XGCTYPE (x) == XGCTYPE (y) && XPNTR (x) == XPNTR (y))
717 #define CHECK_LIST(x, i) \
718 do { if ((XTYPE ((x)) != Lisp_Cons) && !NILP (x)) x = wrong_type_argument (Qlistp, (x)); } while (0)
720 #define CHECK_STRING(x, i) \
721 do { if (XTYPE ((x)) != Lisp_String) x = wrong_type_argument (Qstringp, (x)); } while (0)
723 #define CHECK_CONS(x, i) \
724 do { if (XTYPE ((x)) != Lisp_Cons) x = wrong_type_argument (Qconsp, (x)); } while (0)
726 #define CHECK_SYMBOL(x, i) \
727 do { if (XTYPE ((x)) != Lisp_Symbol) x = wrong_type_argument (Qsymbolp, (x)); } while (0)
729 #define CHECK_VECTOR(x, i) \
730 do { if (XTYPE ((x)) != Lisp_Vector) x = wrong_type_argument (Qvectorp, (x)); } while (0)
732 #define CHECK_BUFFER(x, i) \
733 do { if (XTYPE ((x)) != Lisp_Buffer) x = wrong_type_argument (Qbufferp, (x)); } while (0)
735 #define CHECK_WINDOW(x, i) \
736 do { if (XTYPE ((x)) != Lisp_Window) x = wrong_type_argument (Qwindowp, (x)); } while (0)
738 /* This macro rejects windows on the interior of the window tree as
739 "dead", which is what we want; this is an argument-checking macro, and
740 the user should never get access to interior windows.
742 A window of any sort, leaf or interior, is dead iff the buffer,
743 vchild, and hchild members are all nil. */
745 #define CHECK_LIVE_WINDOW(x, i) \
747 if (XTYPE ((x)) != Lisp_Window \
748 || NILP (XWINDOW ((x))->buffer)) \
749 x = wrong_type_argument (Qwindow_live_p, (x)); \
752 #define CHECK_PROCESS(x, i) \
753 do { if (XTYPE ((x)) != Lisp_Process) x = wrong_type_argument (Qprocessp, (x)); } while (0)
755 #define CHECK_NUMBER(x, i) \
756 do { if (XTYPE ((x)) != Lisp_Int) x = wrong_type_argument (Qintegerp, (x)); } while (0)
758 #define CHECK_NATNUM(x, i) \
759 do { if (XTYPE ((x)) != Lisp_Int || XINT ((x)) < 0) \
760 x = wrong_type_argument (Qnatnump, (x)); } while (0)
762 #define CHECK_MARKER(x, i) \
763 do { if (XTYPE ((x)) != Lisp_Marker) x = wrong_type_argument (Qmarkerp, (x)); } while (0)
765 #define CHECK_NUMBER_COERCE_MARKER(x, i) \
766 do { if (XTYPE ((x)) == Lisp_Marker) XFASTINT (x) = marker_position (x); \
767 else if (XTYPE ((x)) != Lisp_Int) x = wrong_type_argument (Qinteger_or_marker_p, (x)); } while (0)
769 #ifdef LISP_FLOAT_TYPE
775 #define XFLOATINT(n) extract_float((n))
777 #define CHECK_FLOAT(x, i) \
778 do { if (XTYPE (x) != Lisp_Float) \
779 x = wrong_type_argument (Qfloatp, (x)); } while (0)
781 #define CHECK_NUMBER_OR_FLOAT(x, i) \
782 do { if (XTYPE (x) != Lisp_Float && XTYPE (x) != Lisp_Int) \
783 x = wrong_type_argument (Qnumberp, (x)); } while (0)
785 #define CHECK_NUMBER_OR_FLOAT_COERCE_MARKER(x, i) \
786 do { if (XTYPE (x) == Lisp_Marker) XFASTINT (x) = marker_position (x); \
787 else if (XTYPE (x) != Lisp_Int && XTYPE (x) != Lisp_Float) \
788 x = wrong_type_argument (Qnumber_or_marker_p, (x)); } while (0)
790 #else /* Not LISP_FLOAT_TYPE */
792 #define CHECK_NUMBER_OR_FLOAT CHECK_NUMBER
794 #define CHECK_NUMBER_OR_FLOAT_COERCE_MARKER CHECK_NUMBER_COERCE_MARKER
796 #define XFLOATINT(n) XINT((n))
797 #endif /* LISP_FLOAT_TYPE */
799 #define CHECK_OVERLAY(x, i) \
800 do { if (XTYPE ((x)) != Lisp_Overlay) x = wrong_type_argument (Qoverlayp, (x));} while (0)
802 /* Cast pointers to this type to compare them. Some machines want int. */
803 #ifndef PNTR_COMPARISON_TYPE
804 #define PNTR_COMPARISON_TYPE unsigned int
807 /* Define a built-in function for calling from Lisp.
808 `lname' should be the name to give the function in Lisp,
809 as a null-terminated C string.
810 `fnname' should be the name of the function in C.
811 By convention, it starts with F.
812 `sname' should be the name for the C constant structure
813 that records information on this function for internal use.
814 By convention, it should be the same as `fnname' but with S instead of F.
815 It's too bad that C macros can't compute this from `fnname'.
816 `minargs' should be a number, the minimum number of arguments allowed.
817 `maxargs' should be a number, the maximum number of arguments allowed,
818 or else MANY or UNEVALLED.
819 MANY means pass a vector of evaluated arguments,
820 in the form of an integer number-of-arguments
821 followed by the address of a vector of Lisp_Objects
822 which contains the argument values.
823 UNEVALLED means pass the list of unevaluated arguments
824 `prompt' says how to read arguments for an interactive call.
825 This can be zero or a C string.
826 Zero means that interactive calls are not allowed.
827 A string is interpreted in a hairy way:
828 it should contain one line for each argument to be read, terminated by \n.
829 The first character of the line controls the type of parsing:
832 k -- read a key sequence and return it as a string.
833 a -- read a function name (symbol) with completion.
834 C -- read a command name (symbol) with completion.
835 v -- read a variable name (symbol) with completion.
836 b -- read a buffer name (a string) with completion.
837 B -- buffer name, may be existing buffer or may not be.
838 f -- read a file name, file must exist.
839 F -- read a file name, file need not exist.
841 c -- read a character and return it as a number.
842 p -- use the numeric value of the prefix argument.
843 P -- use raw value of prefix - can be nil, -, (NUMBER) or NUMBER.
844 x -- read a Lisp object from the minibuffer.
845 X -- read a Lisp form from the minibuffer and use its value.
846 A null string means call interactively with no arguments.
847 `doc' is documentation for the user.
851 #define DEFUN(lname, fnname, sname, minargs, maxargs, prompt, doc) \
852 Lisp_Object fnname (); \
853 struct Lisp_Subr sname = {fnname, minargs, maxargs, lname, prompt, 0}; \
858 /* This version of DEFUN declares a function prototype with the right
859 arguments, so we can catch errors with maxargs at compile-time. */
860 #define DEFUN(lname, fnname, sname, minargs, maxargs, prompt, doc) \
861 Lisp_Object fnname DEFUN_ARGS_ ## maxargs ; \
862 struct Lisp_Subr sname = {fnname, minargs, maxargs, lname, prompt, 0}; \
865 /* Note that the weird token-substitution semantics of ANSI C makes
866 this work for MANY and UNEVALLED. */
867 #define DEFUN_ARGS_MANY (int, Lisp_Object *)
868 #define DEFUN_ARGS_UNEVALLED (Lisp_Object)
869 #define DEFUN_ARGS_0 (void)
870 #define DEFUN_ARGS_1 (Lisp_Object)
871 #define DEFUN_ARGS_2 (Lisp_Object, Lisp_Object)
872 #define DEFUN_ARGS_3 (Lisp_Object, Lisp_Object, Lisp_Object)
873 #define DEFUN_ARGS_4 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object)
874 #define DEFUN_ARGS_5 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
876 #define DEFUN_ARGS_6 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
877 Lisp_Object, Lisp_Object)
878 #define DEFUN_ARGS_7 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
879 Lisp_Object, Lisp_Object, Lisp_Object)
883 is how we define the symbol for function `name' at start-up time. */
884 extern void defsubr ();
889 extern void defvar_lisp ();
890 extern void defvar_bool ();
891 extern void defvar_int ();
893 /* Macros we use to define forwarded Lisp variables.
894 These are used in the syms_of_FILENAME functions. */
896 #define DEFVAR_LISP(lname, vname, doc) defvar_lisp (lname, vname)
897 #define DEFVAR_LISP_NOPRO(lname, vname, doc) defvar_lisp_nopro (lname, vname)
898 #define DEFVAR_BOOL(lname, vname, doc) defvar_bool (lname, vname)
899 #define DEFVAR_INT(lname, vname, doc) defvar_int (lname, vname)
900 #define DEFVAR_PER_BUFFER(lname, vname, type, doc) \
901 defvar_per_buffer (lname, vname, type, 0)
903 /* Structure for recording Lisp call stack for backtrace purposes. */
905 /* The special binding stack holds the outer values of variables while
906 they are bound by a function application or a let form, stores the
907 code to be executed for Lisp unwind-protect forms, and stores the C
908 functions to be called for record_unwind_protect.
910 If func is non-zero, undoing this binding applies func to old_value;
911 This implements record_unwind_protect.
912 If func is zero and symbol is nil, undoing this binding evaluates
913 the list of forms in old_value; this implements Lisp's unwind-protect
915 Otherwise, undoing this binding stores old_value as symbol's value; this
916 undoes the bindings made by a let form or function call. */
919 Lisp_Object symbol
, old_value
;
920 Lisp_Object (*func
) ();
921 Lisp_Object unused
; /* Dividing by 16 is faster than by 12 */
924 extern struct specbinding
*specpdl
;
925 extern struct specbinding
*specpdl_ptr
;
926 extern int specpdl_size
;
928 /* Everything needed to describe an active condition case. */
931 /* The handler clauses and variable from the condition-case form. */
934 /* Fsignal stores here the condition-case clause that applies,
935 and Fcondition_case thus knows which clause to run. */
936 Lisp_Object chosen_clause
;
938 /* Used to effect the longjump out to the handler. */
939 struct catchtag
*tag
;
941 /* The next enclosing handler. */
942 struct handler
*next
;
945 extern struct handler
*handlerlist
;
947 extern struct catchtag
*catchlist
;
948 extern struct backtrace
*backtrace_list
;
950 extern Lisp_Object memory_signal_data
;
952 /* An address near the bottom of the stack.
953 Tells GC how to save a copy of the stack. */
954 extern char *stack_bottom
;
956 /* Check quit-flag and quit if it is non-nil. */
959 if (!NILP (Vquit_flag) && NILP (Vinhibit_quit)) \
960 { Vquit_flag = Qnil; Fsignal (Qquit, Qnil); }
962 /* Nonzero if ought to quit now. */
964 #define QUITP (!NILP (Vquit_flag) && NILP (Vinhibit_quit))
966 /* 1 if CH is upper case. */
968 #define UPPERCASEP(CH) \
969 (XSTRING (current_buffer->downcase_table)->data[CH] != (CH))
971 /* 1 if CH is lower case. */
973 #define LOWERCASEP(CH) \
975 && XSTRING (current_buffer->upcase_table)->data[CH] != (CH))
977 /* 1 if CH is neither upper nor lower case. */
979 #define NOCASEP(CH) (XSTRING (current_buffer->upcase_table)->data[CH] == (CH))
981 /* Upcase a character, or make no change if that cannot be done. */
984 (XSTRING (current_buffer->downcase_table)->data[CH] == (CH) \
985 ? UPCASE1 (CH) : (CH))
987 /* Upcase a character known to be not upper case. */
989 #define UPCASE1(CH) (XSTRING (current_buffer->upcase_table)->data[CH])
991 /* Downcase a character, or make no change if that cannot be done. */
993 #define DOWNCASE(CH) (XSTRING (current_buffer->downcase_table)->data[CH])
995 /* Current buffer's map from characters to lower-case characters. */
997 #define DOWNCASE_TABLE XSTRING (current_buffer->downcase_table)->data
999 /* Table mapping each char to the next char with the same lowercase version.
1000 This mapping is a no-op only for characters that don't have case. */
1001 #define UPCASE_TABLE XSTRING (current_buffer->upcase_table)->data
1003 extern Lisp_Object Vascii_downcase_table
, Vascii_upcase_table
;
1005 /* number of bytes of structure consed since last GC */
1007 extern int consing_since_gc
;
1009 /* threshold for doing another gc */
1011 extern int gc_cons_threshold
;
1013 /* Structure for recording stack slots that need marking */
1015 /* This is a chain of structures, each of which points at a Lisp_Object variable
1016 whose value should be marked in garbage collection.
1017 Normally every link of the chain is an automatic variable of a function,
1018 and its `val' points to some argument or local variable of the function.
1019 On exit to the function, the chain is set back to the value it had on entry.
1020 This way, no link remains in the chain when the stack frame containing the
1023 Every function that can call Feval must protect in this fashion all
1024 Lisp_Object variables whose contents will be used again. */
1026 extern struct gcpro
*gcprolist
;
1031 Lisp_Object
*var
; /* Address of first protected variable */
1032 int nvars
; /* Number of consecutive protected variables */
1035 #define GCPRO1(varname) \
1036 {gcpro1.next = gcprolist; gcpro1.var = &varname; gcpro1.nvars = 1; \
1037 gcprolist = &gcpro1; }
1039 #define GCPRO2(varname1, varname2) \
1040 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
1041 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
1042 gcprolist = &gcpro2; }
1044 #define GCPRO3(varname1, varname2, varname3) \
1045 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
1046 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
1047 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
1048 gcprolist = &gcpro3; }
1050 #define GCPRO4(varname1, varname2, varname3, varname4) \
1051 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
1052 gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
1053 gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
1054 gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \
1055 gcprolist = &gcpro4; }
1057 /* Call staticpro (&var) to protect static variable `var'. */
1061 #define UNGCPRO (gcprolist = gcpro1.next)
1063 /* Evaluate expr, UNGCPRO, and then return the value of expr. I used
1064 to have a `do ... while' clause around this to make it interact
1065 with semicolons correctly, but this makes some compilers complain
1066 that the while is never reached. */
1067 #define RETURN_UNGCPRO(expr) \
1069 Lisp_Object ret_ungc_val; \
1070 ret_ungc_val = (expr); \
1072 return ret_ungc_val; \
1075 /* Defined in data.c */
1076 extern Lisp_Object Qnil
, Qt
, Qquote
, Qlambda
, Qsubr
, Qunbound
;
1077 extern Lisp_Object Qerror_conditions
, Qerror_message
, Qtop_level
;
1078 extern Lisp_Object Qerror
, Qquit
, Qwrong_type_argument
, Qargs_out_of_range
;
1079 extern Lisp_Object Qvoid_variable
, Qvoid_function
;
1080 extern Lisp_Object Qsetting_constant
, Qinvalid_read_syntax
;
1081 extern Lisp_Object Qinvalid_function
, Qwrong_number_of_arguments
, Qno_catch
;
1082 extern Lisp_Object Qend_of_file
, Qarith_error
;
1083 extern Lisp_Object Qbeginning_of_buffer
, Qend_of_buffer
, Qbuffer_read_only
;
1084 extern Lisp_Object Qmark_inactive
;
1086 extern Lisp_Object Qrange_error
, Qdomain_error
, Qsingularity_error
;
1087 extern Lisp_Object Qoverflow_error
, Qunderflow_error
;
1089 extern Lisp_Object Qintegerp
, Qnumberp
, Qnatnump
, Qsymbolp
, Qlistp
, Qconsp
;
1090 extern Lisp_Object Qstringp
, Qarrayp
, Qsequencep
, Qbufferp
;
1091 extern Lisp_Object Qchar_or_string_p
, Qmarkerp
, Qvectorp
;
1092 extern Lisp_Object Qinteger_or_marker_p
, Qnumber_or_marker_p
;
1093 extern Lisp_Object Qboundp
, Qfboundp
;
1094 extern Lisp_Object Qbuffer_or_string_p
;
1095 extern Lisp_Object Qcdr
;
1097 #ifdef LISP_FLOAT_TYPE
1098 extern Lisp_Object Qfloatp
, Qinteger_or_floatp
, Qinteger_or_float_or_marker_p
;
1099 #endif /* LISP_FLOAT_TYPE */
1101 extern Lisp_Object Qframep
;
1103 extern Lisp_Object
Feq (), Fnull (), Flistp (), Fconsp (), Fatom (), Fnlistp ();
1104 extern Lisp_Object
Fintegerp (), Fnatnump (), Fsymbolp ();
1105 extern Lisp_Object
Fvectorp (), Fstringp (), Farrayp (), Fsequencep ();
1106 extern Lisp_Object
Fbufferp (), Fmarkerp (), Fsubrp (), Fchar_or_string_p ();
1107 extern Lisp_Object
Finteger_or_marker_p ();
1108 #ifdef LISP_FLOAT_TYPE
1109 extern Lisp_Object
Ffloatp(), Finteger_or_floatp();
1110 extern Lisp_Object
Finteger_or_float_or_marker_p(), Ftruncate();
1111 #endif /* LISP_FLOAT_TYPE */
1113 extern Lisp_Object
Fcar (), Fcar_safe(), Fcdr (), Fcdr_safe();
1114 extern Lisp_Object
Fsetcar (), Fsetcdr ();
1115 extern Lisp_Object
Fboundp (), Ffboundp (), Fmakunbound (), Ffmakunbound ();
1116 extern Lisp_Object
Fsymbol_function (), Fsymbol_plist (), Fsymbol_name ();
1117 extern Lisp_Object
indirect_function (), Findirect_function ();
1118 extern Lisp_Object
Ffset (), Fsetplist ();
1119 extern Lisp_Object
Fsymbol_value (), find_symbol_value (), Fset ();
1120 extern Lisp_Object
Fdefault_value (), Fset_default (), Fdefault_boundp ();
1122 extern Lisp_Object
Faref (), Faset (), Farray_length ();
1124 extern Lisp_Object
Fstring_to_number (), Fnumber_to_string ();
1125 extern Lisp_Object
Feqlsign (), Fgtr (), Flss (), Fgeq (), Fleq ();
1126 extern Lisp_Object
Fneq (), Fzerop ();
1127 extern Lisp_Object
Fplus (), Fminus (), Ftimes (), Fquo (), Frem ();
1128 extern Lisp_Object
Fmax (), Fmin ();
1129 extern Lisp_Object
Flogand (), Flogior (), Flogxor (), Flognot ();
1130 extern Lisp_Object
Flsh (), Fash ();
1132 extern Lisp_Object
Fadd1 (), Fsub1 ();
1134 extern Lisp_Object
make_number ();
1135 extern Lisp_Object
long_to_cons ();
1136 extern unsigned long cons_to_long ();
1137 extern void args_out_of_range ();
1138 extern void args_out_of_range_3 ();
1139 extern Lisp_Object
wrong_type_argument ();
1140 #ifdef LISP_FLOAT_TYPE
1141 extern Lisp_Object
Ffloat_to_int(), Fint_to_float();
1142 extern double extract_float();
1143 extern Lisp_Object
make_float ();
1144 extern Lisp_Object
Ffloat ();
1145 #endif /* LISP_FLOAT_TYPE */
1147 /* Defined in fns.c */
1148 extern Lisp_Object Qstring_lessp
;
1149 extern Lisp_Object Vfeatures
;
1150 extern Lisp_Object
Fidentity (), Frandom ();
1151 extern Lisp_Object
Flength ();
1152 extern Lisp_Object
Fappend (), Fconcat (), Fvconcat (), Fcopy_sequence ();
1153 extern Lisp_Object
Fsubstring ();
1154 extern Lisp_Object
Fnth (), Fnthcdr (), Fmemq (), Fassq (), Fassoc ();
1155 extern Lisp_Object
Frassq (), Fdelq (), Fsort ();
1156 extern Lisp_Object
Freverse (), Fnreverse (), Fget (), Fput (), Fequal ();
1157 extern Lisp_Object
Ffillarray (), Fnconc (), Fmapcar (), Fmapconcat ();
1158 extern Lisp_Object
Fy_or_n_p (), do_yes_or_no_p ();
1159 extern Lisp_Object
Ffeaturep (), Frequire () , Fprovide ();
1160 extern Lisp_Object
concat2 (), nconc2 ();
1161 extern Lisp_Object
assq_no_quit ();
1162 extern Lisp_Object
Fcopy_alist ();
1164 /* Defined in alloc.c */
1165 extern Lisp_Object Vpurify_flag
;
1166 extern Lisp_Object
Fcons (), Flist(), Fmake_list ();
1167 extern Lisp_Object
Fmake_vector (), Fvector (), Fmake_symbol (), Fmake_marker ();
1168 extern Lisp_Object
Fmake_string (), build_string (), make_string ();
1169 extern Lisp_Object
make_event_array (), make_uninit_string ();
1170 extern Lisp_Object
Fpurecopy (), make_pure_string ();
1171 extern Lisp_Object
pure_cons (), make_pure_vector ();
1172 extern Lisp_Object
Fgarbage_collect ();
1173 extern Lisp_Object
Fmake_byte_code ();
1175 /* Defined in print.c */
1176 extern Lisp_Object Vprin1_to_string_buffer
;
1177 extern Lisp_Object
Fprin1 (), Fprin1_to_string (), Fprinc ();
1178 extern Lisp_Object
Fterpri (), Fprint ();
1179 extern Lisp_Object Vstandard_output
, Qstandard_output
;
1180 extern Lisp_Object Qexternal_debugging_output
;
1181 extern void temp_output_buffer_setup (), temp_output_buffer_show ();
1182 extern int print_level
, print_escape_newlines
;
1183 extern Lisp_Object Qprint_escape_newlines
;
1185 /* Defined in lread.c */
1186 extern Lisp_Object Qvariable_documentation
, Qstandard_input
;
1187 extern Lisp_Object Vobarray
, Vstandard_input
;
1188 extern Lisp_Object
Fread (), Fread_from_string ();
1189 extern Lisp_Object
Fintern (), Fintern_soft (), Fload ();
1190 extern Lisp_Object
Fget_file_char (), Fread_char ();
1191 extern Lisp_Object
read_filtered_event ();
1192 extern Lisp_Object
Feval_current_buffer (), Feval_region ();
1193 extern Lisp_Object
intern (), oblookup ();
1194 #define LOADHIST_ATTACH(x) \
1195 if (initialized) Vcurrent_load_list = Fcons (x, Vcurrent_load_list)
1196 extern Lisp_Object Vcurrent_load_list
;
1197 extern Lisp_Object Vload_history
;
1199 /* Defined in eval.c */
1200 extern Lisp_Object Qautoload
, Qexit
, Qinteractive
, Qcommandp
, Qdefun
, Qmacro
;
1201 extern Lisp_Object Vinhibit_quit
, Qinhibit_quit
, Vquit_flag
;
1202 extern Lisp_Object Vmocklisp_arguments
, Qmocklisp
, Qmocklisp_arguments
;
1203 extern Lisp_Object Vautoload_queue
;
1204 /* To run a normal hook, do
1205 if (!NILP (Vrun_hooks))
1206 call1 (Vrun_hooks, Qmy_funny_hook); */
1207 extern Lisp_Object Vrun_hooks
;
1208 extern Lisp_Object
Fand (), For (), Fif (), Fprogn (), Fprog1 (), Fprog2 ();
1209 extern Lisp_Object
Fsetq (), Fquote ();
1210 extern Lisp_Object
Fuser_variable_p (), Finteractive_p ();
1211 extern Lisp_Object
Fdefun (), Flet (), FletX (), Fwhile ();
1212 extern Lisp_Object
Fcatch (), Fthrow (), Funwind_protect ();
1213 extern Lisp_Object
Fcondition_case (), Fsignal ();
1214 extern Lisp_Object
Ffunction_type (), Fautoload (), Fcommandp ();
1215 extern Lisp_Object
Feval (), Fapply (), Ffuncall ();
1216 extern Lisp_Object
Fglobal_set (), Fglobal_value (), Fbacktrace ();
1217 extern Lisp_Object
apply1 (), call0 (), call1 (), call2 (), call3 ();
1218 extern Lisp_Object
apply_lambda ();
1219 extern Lisp_Object
internal_catch ();
1220 extern Lisp_Object
internal_condition_case ();
1221 extern Lisp_Object
internal_condition_case_1 ();
1222 extern Lisp_Object
unbind_to ();
1223 extern void error ();
1224 extern Lisp_Object
un_autoload ();
1226 /* Defined in editfns.c */
1227 extern Lisp_Object Vprefix_arg
, Qminus
, Vcurrent_prefix_arg
;
1228 extern Lisp_Object
Fgoto_char ();
1229 extern Lisp_Object
Fpoint_min_marker (), Fpoint_max_marker ();
1230 extern Lisp_Object
Fpoint_min (), Fpoint_max ();
1231 extern Lisp_Object
Fpoint (), Fpoint_marker (), Fmark_marker ();
1232 extern Lisp_Object
Ffollowing_char (), Fprevious_char (), Fchar_after ();
1233 extern Lisp_Object
Finsert ();
1234 extern Lisp_Object
Feolp (), Feobp (), Fbolp (), Fbobp ();
1235 extern Lisp_Object
Fformat (), format1 ();
1236 extern Lisp_Object
make_buffer_string (), Fbuffer_substring ();
1237 extern Lisp_Object
Fbuffer_string ();
1238 extern Lisp_Object
Fstring_equal (), Fstring_lessp (), Fbuffer_substring_lessp ();
1239 extern Lisp_Object
save_excursion_save (), save_restriction_save ();
1240 extern Lisp_Object
save_excursion_restore (), save_restriction_restore ();
1241 extern Lisp_Object
Fchar_to_string ();
1243 /* defined in buffer.c */
1244 extern Lisp_Object Vbuffer_alist
, Vinhibit_read_only
;
1245 extern Lisp_Object
Fget_buffer (), Fget_buffer_create (), Fset_buffer ();
1246 extern Lisp_Object
Fbarf_if_buffer_read_only ();
1247 extern Lisp_Object
Fcurrent_buffer (), Fswitch_to_buffer (), Fpop_to_buffer ();
1248 extern Lisp_Object
Fother_buffer ();
1249 extern Lisp_Object Qoverlayp
;
1250 extern struct buffer
*all_buffers
;
1252 /* defined in marker.c */
1254 extern Lisp_Object
Fmarker_position (), Fmarker_buffer ();
1255 extern Lisp_Object
Fcopy_marker ();
1257 /* Defined in fileio.c */
1259 extern Lisp_Object Qfile_error
;
1260 extern Lisp_Object
Ffind_file_name_handler ();
1261 extern Lisp_Object
Ffile_name_as_directory ();
1262 extern Lisp_Object
Fexpand_file_name (), Ffile_name_nondirectory ();
1263 extern Lisp_Object
Fsubstitute_in_file_name ();
1264 extern Lisp_Object
Ffile_symlink_p ();
1265 extern Lisp_Object
Fverify_visited_file_modtime ();
1266 extern Lisp_Object
Ffile_exists_p ();
1267 extern Lisp_Object
Fdirectory_file_name ();
1268 extern Lisp_Object
Ffile_name_directory ();
1269 extern Lisp_Object
expand_and_dir_to_file ();
1270 extern Lisp_Object
Ffile_accessible_directory_p ();
1272 /* Defined in abbrev.c */
1274 extern Lisp_Object Vfundamental_mode_abbrev_table
;
1276 /* defined in search.c */
1277 extern Lisp_Object
Fstring_match ();
1278 extern Lisp_Object
Fscan_buffer ();
1280 /* defined in minibuf.c */
1282 extern Lisp_Object last_minibuf_string
;
1283 extern Lisp_Object
read_minibuf (), Fcompleting_read ();
1284 extern Lisp_Object
Fread_from_minibuffer ();
1285 extern Lisp_Object
Fread_variable (), Fread_buffer (), Fread_key_sequence ();
1286 extern Lisp_Object
Fread_minibuffer (), Feval_minibuffer ();
1287 extern Lisp_Object
Fread_string (), Fread_file_name ();
1288 extern Lisp_Object
Fread_no_blanks_input ();
1290 /* Defined in callint.c */
1292 extern Lisp_Object Vcommand_history
;
1293 extern Lisp_Object Qcall_interactively
;
1294 extern Lisp_Object
Fcall_interactively ();
1295 extern Lisp_Object
Fprefix_numeric_value ();
1297 /* defined in casefiddle.c */
1299 extern Lisp_Object
Fdowncase (), Fupcase (), Fcapitalize ();
1301 /* defined in keyboard.c */
1303 extern Lisp_Object Qdisabled
;
1304 extern Lisp_Object Vhelp_form
, Vtop_level
;
1305 extern Lisp_Object
Fdiscard_input (), Frecursive_edit ();
1306 extern Lisp_Object
Fcommand_execute (), Finput_pending_p ();
1307 extern Lisp_Object Qvertical_scroll_bar
;
1309 /* defined in keymap.c */
1311 extern Lisp_Object Qkeymap
, Qmenu_bar
;
1312 extern Lisp_Object current_global_map
;
1313 extern Lisp_Object
Fkey_description (), Fsingle_key_description ();
1314 extern Lisp_Object
Fwhere_is_internal ();
1315 extern Lisp_Object
access_keymap (), store_in_keymap ();
1316 extern Lisp_Object
get_keyelt (), get_keymap();
1318 /* defined in indent.c */
1319 extern Lisp_Object
Fvertical_motion (), Findent_to (), Fcurrent_column ();
1321 /* defined in window.c */
1322 extern Lisp_Object Qwindowp
, Qwindow_live_p
;
1323 extern Lisp_Object
Fget_buffer_window ();
1324 extern Lisp_Object
Fsave_window_excursion ();
1325 extern Lisp_Object
Fset_window_configuration (), Fcurrent_window_configuration ();
1326 extern Lisp_Object
Fcoordinates_in_window_p ();
1327 extern Lisp_Object
Fwindow_at ();
1328 extern int window_internal_height (), window_internal_width ();
1330 /* defined in frame.c */
1331 extern Lisp_Object Qvisible
;
1332 extern Lisp_Object
Fframep ();
1333 extern Lisp_Object
Fselect_frame ();
1334 extern Lisp_Object
Ffocus_frame ();
1335 extern Lisp_Object
Funfocus_frame ();
1336 extern Lisp_Object
Fselected_frame ();
1337 extern Lisp_Object
Fwindow_frame ();
1338 extern Lisp_Object
Fframe_root_window ();
1339 extern Lisp_Object
Fframe_selected_window ();
1340 extern Lisp_Object
Fframe_list ();
1341 extern Lisp_Object
Fnext_frame ();
1342 extern Lisp_Object
Fdelete_frame ();
1343 extern Lisp_Object
Fread_mouse_position ();
1344 extern Lisp_Object
Fset_mouse_position ();
1345 extern Lisp_Object
Fmake_frame_visible ();
1346 extern Lisp_Object
Fmake_frame_invisible ();
1347 extern Lisp_Object
Ficonify_frame ();
1348 extern Lisp_Object
Fdeiconify_frame ();
1349 extern Lisp_Object
Fframe_visible_p ();
1350 extern Lisp_Object
Fvisible_frame_list ();
1351 extern Lisp_Object
Fframe_parameters ();
1352 extern Lisp_Object
Fmodify_frame_parameters ();
1353 extern Lisp_Object
Fframe_pixel_size ();
1354 extern Lisp_Object
Fframe_height ();
1355 extern Lisp_Object
Fframe_width ();
1356 extern Lisp_Object
Fset_frame_height ();
1357 extern Lisp_Object
Fset_frame_width ();
1358 extern Lisp_Object
Fset_frame_size ();
1359 extern Lisp_Object
Fset_frame_position ();
1361 extern Lisp_Object
Frubber_band_rectangle ();
1362 #endif /* HAVE_X11 */
1364 /* defined in emacs.c */
1365 extern Lisp_Object
decode_env_path ();
1366 extern Lisp_Object Vinvocation_name
, Vinvocation_directory
;
1367 extern Lisp_Object Vinstallation_directory
;
1368 void shut_down_emacs ( /* int signal, int no_x, Lisp_Object stuff */ );
1369 /* Nonzero means don't do interactive redisplay and don't change tty modes */
1370 extern int noninteractive
;
1371 /* Nonzero means don't do use window-system-specific display code */
1372 extern int inhibit_window_system
;
1374 /* defined in process.c */
1375 extern Lisp_Object
Fget_process (), Fget_buffer_process (), Fprocessp ();
1376 extern Lisp_Object
Fprocess_status (), Fkill_process ();
1378 /* defined in callproc.c */
1379 extern Lisp_Object Vexec_path
, Vexec_directory
, Vdata_directory
;
1380 extern Lisp_Object Vdoc_directory
;
1382 /* defined in doc.c */
1383 extern Lisp_Object Vdoc_file_name
;
1384 extern Lisp_Object
Fsubstitute_command_keys ();
1385 extern Lisp_Object
Fdocumentation (), Fdocumentation_property ();
1387 /* defined in bytecode.c */
1388 extern Lisp_Object Qbytecode
;
1389 extern Lisp_Object
Fbyte_code ();
1391 /* defined in macros.c */
1392 extern Lisp_Object Qexecute_kbd_macro
;
1393 extern Lisp_Object
Fexecute_kbd_macro ();
1395 /* defined in undo.c */
1396 extern Lisp_Object
Fundo_boundary ();
1397 extern Lisp_Object
truncate_undo_list ();
1399 /* defined in textprop.c */
1400 extern Lisp_Object Qmodification_hooks
;
1401 extern Lisp_Object Qinsert_in_front_hooks
, Qinsert_behind_hooks
;
1402 extern Lisp_Object
Fnext_property_change ();
1403 extern Lisp_Object
Fnext_single_property_change ();
1405 /* Nonzero means Emacs has already been initialized.
1406 Used during startup to detect startup of dumped Emacs. */
1407 extern int initialized
;
1409 extern int immediate_quit
; /* Nonzero means ^G can quit instantly */
1411 extern void debugger ();
1413 extern char *getenv (), *ctime (), *getwd ();
1414 extern long *xmalloc (), *xrealloc ();
1415 extern void xfree ();
1417 extern char *egetenv ();
1419 /* Return the name of the machine we're running on. */
1420 extern char *get_system_name ();