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+/*
+ * Copyright (c) 2001 by The XFree86 Project, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE XFREE86 PROJECT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+ * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Except as contained in this notice, the name of the XFree86 Project shall
+ * not be used in advertising or otherwise to promote the sale, use or other
+ * dealings in this Software without prior written authorization from the
+ * XFree86 Project.
+ *
+ * Author: Paulo César Pereira de Andrade
+ */
+
+/* $XFree86: xc/programs/xedit/lisp/internal.h,v 1.49 2002/12/11 04:44:27 paulo Exp $ */
+
+#ifndef Lisp_internal_h
+#define Lisp_internal_h
+
+#include <stdio.h>
+#include "lisp.h"
+
+#include "mp.h"
+#include "re.h"
+
+/*
+ * Defines
+ */
+typedef struct _LispMac LispMac;
+
+#define STREAM_READ 0x01
+#define STREAM_WRITE 0x02
+#define STREAM_BINARY 0x20
+
+#define RPLACA(cons, object) (CAR(cons) = object)
+#define RPLACD(cons, object) (CDR(cons) = object)
+
+#define CAR(list) ((list)->data.cons.car)
+#define CAAR(list) ((list)->data.cons.car->data.cons.car)
+#define CADR(list) ((list)->data.cons.cdr->data.cons.car)
+#define CDR(list) ((list)->data.cons.cdr)
+#define CDAR(list) ((list)->data.cons.car->data.cons.cdr)
+#define CDDR(list) ((list)->data.cons.cdr->data.cons.cdr)
+#define CONS(car, cdr) LispNewCons(car, cdr)
+#define EVAL(list) LispEval(list)
+#define APPLY(fun, args) LispFuncall(fun, args, 0)
+#define APPLY1(fun, arg) LispApply1(fun, arg)
+#define APPLY2(fun, arg1, arg2) LispApply2(fun, arg1, arg2)
+#define APPLY3(f, a1, a2, a3) LispApply3(f, a1, a2, a3)
+#define EXECUTE(string) LispExecute(string)
+#define SYMBOL(atom) LispNewSymbol(atom)
+#define ATOM(string) LispNewAtom(string, 1)
+#define UNINTERNED_ATOM(string) LispNewAtom(string, 0)
+#define FUNCTION(symbol) LispNewFunction(symbol)
+#define FUNCTION_QUOTE(symbol) LispNewFunctionQuote(symbol)
+
+ /* atom string is a static variable */
+#define ATOM2(string) LispNewSymbol(LispGetPermAtom(string))
+
+ /* make a gc never released variable with a static string argument */
+#define STATIC_ATOM(string) LispNewStaticAtom(string)
+
+#define STRING(str) LispNewString(str, strlen(str), 0)
+#define LSTRING(str, size) LispNewString(str, size, 0)
+
+ /* string must be from the LispXXX allocation functions,
+ * and LispMused not yet called on it */
+#define STRING2(str) LispNewString(str, strlen(str), 1)
+#define LSTRING2(str, size) LispNewString(str, size, 1)
+
+#define VECTOR(objects) LispNewVector(objects)
+
+ /* STRINGSTREAM2 and LSTRINGSTREAM2 require that the
+ * string be allocated from the LispXXX allocation functions,
+ * and LispMused not yet called on it */
+#define STRINGSTREAM(str, flag) \
+ LispNewStringStream(str, flag, strlen(str), 0)
+#define STRINGSTREAM2(str, flag) \
+ LispNewStringStream(str, flag, strlen(str), 1)
+#define LSTRINGSTREAM(str, flag, length) \
+ LispNewStringStream(str, flag, length, 0)
+#define LSTRINGSTREAM2(str, flag, length) \
+ LispNewStringStream(str, flag, length, 1)
+
+#define FILESTREAM(file, path, flag) \
+ LispNewFileStream(file, path, flag)
+#define PIPESTREAM(file, path, flag) \
+ LispNewPipeStream(file, path, flag)
+
+#define CHECKO(obj, typ) \
+ ((obj)->type == LispOpaque_t && \
+ ((obj)->data.opaque.type == typ || (obj)->data.opaque.type == 0))
+#define PROTECT(key, list) LispProtect(key, list)
+#define UPROTECT(key, list) LispUProtect(key, list)
+
+/* create a new unique static atom string */
+#define GETATOMID(string) LispGetAtomString(string, 1)
+
+#define GCDisable() ++gcpro
+#define GCEnable() --gcpro
+
+
+/* pointer to something unique to all atoms with the same print representation */
+#define ATOMID(object) (object)->data.atom->string
+
+
+
+#define NIL_BIT 0x01
+#define FIXNUM_BIT 0x02
+#define FIXNUM_MASK 0x03
+#define SCHAR_BIT 0x04
+#define SCHAR_MASK 0x05
+#define BIT_COUNT 4
+#define BIT_MASK 0x0f
+#define POINTERP(object) \
+ (((unsigned long)(object) & NIL_BIT) == 0)
+
+#define MOST_POSITIVE_FIXNUM ((1L << (sizeof(long) * 8 - 5)) - 1)
+#define MOST_NEGATIVE_FIXNUM (-1L << (sizeof(long) * 8 - 5))
+
+#define SCHAR(value) \
+ ((LispObj*)(((long)(value) << BIT_COUNT) | SCHAR_MASK))
+#define SCHAR_VALUE(object) FIXNUM_VALUE(object)
+#define SCHARP(object) \
+ (((unsigned long)(object) & BIT_MASK) == SCHAR_MASK)
+#define CHECK_SCHAR(object) \
+ if (!SCHARP(object)) \
+ LispDestroy("%s: %s is not a character", \
+ STRFUN(builtin), STROBJ(object))
+
+#define XOBJECT_TYPE(object) ((object)->type)
+#define OBJECT_TYPE(object) \
+ (POINTERP(object) ? XOBJECT_TYPE(object) : (long)(object) & BIT_MASK)
+
+
+#define NIL (LispObj*)0x00000001
+#define T (LispObj*)0x00000011
+#define DOT (LispObj*)0x00000021
+/* unmatched ')' */
+#define EOLIST (LispObj*)0x00000031
+#define READLABEL_MASK 0x00000041
+/* unspecified argument */
+#define UNSPEC (LispObj*)0x00000051
+#define INVALIDP(object) \
+ ((object) == NULL || (object) == EOLIST || (object) == DOT)
+
+
+/* cons */
+#define XCONSP(object) ((object)->type == LispCons_t)
+#define CONSP(object) (POINTERP(object) && XCONSP(object))
+#define CHECK_CONS(object) \
+ if (!CONSP(object)) \
+ LispDestroy("%s: %s is not of type cons", \
+ STRFUN(builtin), STROBJ(object))
+#define LISTP(object) (object == NIL || CONSP(object))
+#define CHECK_LIST(object) \
+ if (!LISTP(object)) \
+ LispDestroy("%s: %s is not a list", \
+ STRFUN(builtin), STROBJ(object))
+
+/* fixnum */
+#define FIXNUM(value) \
+ ((LispObj*)(((long)(value) << BIT_COUNT) | FIXNUM_MASK))
+#define FIXNUM_VALUE(object) ((long)(object) >> BIT_COUNT)
+#define FIXNUMP(object) \
+ (((unsigned long)(object) & BIT_MASK) == FIXNUM_MASK)
+#define CHECK_FIXNUM(object) \
+ if (!FIXNUMP(object)) \
+ LispDestroy("%s: %s is not a fixnum", \
+ STRFUN(builtin), STROBJ(object))
+#define INDEXP(object) \
+ (FIXNUMP(object) && FIXNUM_VALUE(object) >= 0)
+#define CHECK_INDEX(object) \
+ if (!INDEXP(object)) \
+ LispDestroy("%s: %s is not a positive fixnum", \
+ STRFUN(builtin), STROBJ(object))
+
+
+/* long int integer */
+#define XINTP(object) ((object)->type == LispInteger_t)
+#define INTP(objet) (POINTERP(object) && XINTP(object))
+#define INT_VALUE(object) (object)->data.integer
+
+
+/* values that fit in a machine long int but not in a fixnum */
+#define LONGINTP(object) \
+ (POINTERP(object) ? XINTP(object) : FIXNUMP(object))
+#define LONGINT_VALUE(object) \
+ (POINTERP(object) ? INT_VALUE(object) : FIXNUM_VALUE(object))
+#define CHECK_LONGINT(object) \
+ if (!LONGINTP(object)) \
+ LispDestroy("%s: %s is not an integer", \
+ STRFUN(builtin), STROBJ(object))
+
+
+/* bignum */
+#define XBIGNUMP(object) ((object)->type == LispBignum_t)
+#define BIGNUMP(object) (POINTERP(object) && XBIGNUMP(object))
+#define BIGNUM(object) LispNewBignum(object)
+
+
+/* generic integer */
+#define INTEGER(integer) LispNewInteger(integer)
+#define INTEGERP(object) \
+ (POINTERP(object) ? XINTP(object) || XBIGNUMP(object) : FIXNUMP(object))
+#define CHECK_INTEGER(object) \
+ if (!INTEGERP(object)) \
+ LispDestroy("%s: %s is not an integer", \
+ STRFUN(builtin), STROBJ(object))
+
+
+/* ratio */
+#define XRATIOP(object) ((object)->type == LispRatio_t)
+#define RATIOP(object) (POINTERP(object) && XRATIOP(object))
+#define RATIO(num, den) LispNewRatio(num, den)
+
+
+/* bigratio */
+#define XBIGRATIOP(object) ((object)->type == LispBigratio_t)
+#define BIGRATIOP(object) (POINTERP(object) && XBIGRATIOP(object))
+#define BIGRATIO(ratio) LispNewBigratio(ratio)
+
+
+/* generic rational */
+#define RATIONALP(object) \
+ (POINTERP(object) ? XINTP(object) || XRATIOP(object) || \
+ XBIGNUMP(object) || XBIGRATIOP(object) : \
+ FIXNUMP(object))
+
+
+/* double float */
+#define XDFLOATP(object) ((object)->type == LispDFloat_t)
+#define DFLOATP(object) (POINTERP(object) && XDFLOATP(object))
+#define DFLOAT_VALUE(object) (object)->data.dfloat
+#define CHECK_DFLOAT(object) \
+ if (!DFLOATP(object)) \
+ LispDestroy("%s: %s is not a float number", \
+ STRFUN(builtin), STROBJ(object))
+#define DFLOAT(value) LispNewDFloat(value)
+
+
+/* generic float - currently only double float supported */
+#define FLOATP(object) DFLOATP(object)
+
+
+/* real number */
+#define REALP(object) \
+ (POINTERP(object) ? XINTP(object) || XDFLOATP(object) || \
+ XRATIOP(object) || XBIGNUMP(object) || \
+ XBIGRATIOP(object) : \
+ FIXNUMP(object))
+#define CHECK_REAL(object) \
+ if (!REALP(object)) \
+ LispDestroy("%s: %s is not a real number", \
+ STRFUN(builtin), STROBJ(object))
+
+
+/* complex */
+#define XCOMPLEXP(object) ((object)->type == LispComplex_t)
+#define COMPLEXP(object) (POINTERP(object) && XCOMPLEXP(object))
+#define COMPLEX(real, imag) LispNewComplex(real, imag)
+
+
+/* generic number */
+#define NUMBERP(object) \
+ (POINTERP(object) ? XINTP(object) || XDFLOATP(object) || \
+ XRATIOP(object) || XBIGNUMP(object) || \
+ XBIGRATIOP(object) || XCOMPLEXP(object) : \
+ FIXNUMP(object))
+#define CHECK_NUMBER(object) \
+ if (!NUMBERP(object)) \
+ LispDestroy("%s: %s is not a number", \
+ STRFUN(builtin), STROBJ(object))
+
+
+/* symbol */
+#define XSYMBOLP(object) ((object)->type == LispAtom_t)
+#define SYMBOLP(object) (POINTERP(object) && XSYMBOLP(object))
+#define CHECK_SYMBOL(object) \
+ if (!SYMBOLP(object)) \
+ LispDestroy("%s: %s is not a symbol", \
+ STRFUN(builtin), STROBJ(object))
+
+
+/* keyword */
+#define XKEYWORDP(object) \
+ ((object)->data.atom->package == lisp__data.keyword)
+#define KEYWORDP(object) \
+ (POINTERP(object) && XSYMBOLP(object) && XKEYWORDP(object))
+#define KEYWORD(string) LispNewKeyword(string)
+#define CHECK_KEYWORD(object) \
+ if (!KEYWORDP(object)) \
+ LispDestroy("%s: %s is not a keyword", \
+ STRFUN(builtin), STROBJ(object))
+#define CHECK_CONSTANT(object) \
+ if ((object)->data.atom->constant) \
+ LispDestroy("%s: %s is a constant", \
+ STRFUN(builtin), STROBJ(object))
+
+#define SETVALUE(atom, object) ((atom)->property->value = object)
+
+
+/* function */
+#define XFUNCTIONP(object) ((object)->type == LispFunction_t)
+#define FUNCTIONP(object) (POINTERP(object) && XFUNCTIONP(object))
+
+
+/* lambda */
+#define XLAMBDAP(object) ((object)->type == LispLambda_t)
+#define LAMBDAP(object) (POINTERP(object) && XLAMBDAP(object))
+
+
+/* string - currently only simple 8 bit characters */
+#define XSTRINGP(object) ((object)->type == LispString_t)
+#define STRINGP(object) (POINTERP(object) && XSTRINGP(object))
+#define THESTR(object) (object)->data.string.string
+#define STRLEN(object) (object)->data.string.length
+#define CHECK_STRING(object) \
+ if (!STRINGP(object)) \
+ LispDestroy("%s: %s is not a string", \
+ STRFUN(builtin), STROBJ(object))
+#define CHECK_STRING_WRITABLE(object) \
+ if (!object->data.string.writable) \
+ LispDestroy("%s: %s is readonly", \
+ STRFUN(builtin), STROBJ(object))
+
+
+/* array/vector */
+#define XARRAYP(object) ((object)->type == LispArray_t)
+#define ARRAYP(object) (POINTERP(object) && XARRAYP(object))
+#define CHECK_ARRAY(object) \
+ if (!ARRAYP(object)) \
+ LispDestroy("%s: %s is not an array", \
+ STRFUN(builtin), STROBJ(object))
+
+
+/* quote */
+#define XQUOTEP(object) ((object)->type == LispQuote_t)
+#define QUOTEP(object) (POINTERP(object) && XQUOTEP(object))
+#define QUOTE(object) LispNewQuote(object)
+
+#define XBACKQUOTEP(object) ((object)->type == LispBackquote_t)
+#define BACKQUOTEP(object) (POINTERP(object) && XBACKQUOTEP(object))
+#define BACKQUOTE(object) LispNewBackquote(object)
+
+#define XCOMMAP(object) ((object)->type == LispComma_t)
+#define COMMAP(object) (POINTERP(object) && XCOMMAP(object))
+#define COMMA(object, at) LispNewComma(object, at)
+
+
+/* package */
+#define XPACKAGEP(object) ((object)->type == LispPackage_t)
+#define PACKAGEP(object) (POINTERP(object) && XPACKAGEP(object))
+
+
+/* pathname */
+#define XPATHNAMEP(object) ((object)->type == LispPathname_t)
+#define PATHNAMEP(object) (POINTERP(object) && XPATHNAMEP(object))
+#define PATHNAME(object) LispNewPathname(object)
+#define CHECK_PATHNAME(object) \
+ if (!PATHNAMEP(object)) \
+ LispDestroy("%s: %s is not a pathname", \
+ STRFUN(builtin), STROBJ(object))
+
+
+/* stream */
+#define XSTREAMP(object) ((object)->type == LispStream_t)
+#define STREAMP(object) (POINTERP(object) && XSTREAMP(object))
+#define CHECK_STREAM(object) \
+ if (!STREAMP(object)) \
+ LispDestroy("%s: %s is not a stream", \
+ STRFUN(builtin), STROBJ(object))
+
+
+/* hastable */
+#define XHASHTABLEP(object) ((object)->type == LispHashTable_t)
+#define HASHTABLEP(object) (POINTERP(object) && XHASHTABLEP(object))
+#define CHECK_HASHTABLE(object) \
+ if (!HASHTABLEP(object)) \
+ LispDestroy("%s: %s is not a hash-table", \
+ STRFUN(builtin), STROBJ(object))
+
+
+/* regex */
+#define XREGEXP(object) ((object)->type == LispRegex_t)
+#define REGEXP(object) (POINTERP(object) && XREGEXP(object))
+#define CHECK_REGEX(object) \
+ if (!REGEXP(object)) \
+ LispDestroy("%s: %s is not a regexp", \
+ STRFUN(builtin), STROBJ(object))
+
+
+/* bytecode */
+#define XBYTECODEP(object) ((object)->type == LispBytecode_t)
+#define BYTECODEP(object) (POINTERP(object) && XBYTECODEP(object))
+
+
+/* opaque */
+#define XOPAQUEP(object) ((object)->type == LispOpaque_t)
+#define OPAQUEP(object) (POINTERP(object) && XOPAQUEP(object))
+#define OPAQUE(data, type) LispNewOpaque((void*)((long)data), type)
+
+
+
+#define SSTREAMP(str) ((str)->data.stream.source.string)
+
+#define FSTREAMP(str) ((str)->data.stream.source.file)
+
+#define PSTREAMP(str) ((str)->data.stream.source.program)
+#define PIDPSTREAMP(str) ((str)->data.stream.source.program->pid)
+#define IPSTREAMP(str) ((str)->data.stream.source.program->input)
+#define OPSTREAMP(str) ((str)->data.stream.source.program->output)
+#define EPSTREAMP(str) \
+ FSTREAMP((str)->data.stream.source.program->errorp)
+
+#define LispFileno(file) ((file)->descriptor)
+
+#define STRFUN(builtin) ATOMID(builtin->symbol)
+#define STROBJ(obj) LispStrObj(obj)
+
+/* fetch builtin function/macro argument value
+ */
+#define ARGUMENT(index) \
+ lisp__data.stack.values[lisp__data.stack.base + (index)]
+
+#define RETURN(index) lisp__data.returns.values[(index)]
+#define RETURN_COUNT lisp__data.returns.count
+#define RETURN_CHECK(value) \
+ value < MULTIPLE_VALUES_LIMIT ? \
+ value : MULTIPLE_VALUES_LIMIT
+
+#define GC_ENTER() int gc__protect = lisp__data.protect.length
+
+#define GC_PROTECT(object) \
+ if (lisp__data.protect.length >= lisp__data.protect.space) \
+ LispMoreProtects(); \
+ lisp__data.protect.objects[lisp__data.protect.length++] = object
+
+#define GC_LEAVE() lisp__data.protect.length = gc__protect
+
+
+#define ERROR_CHECK_SPECIAL_FORM(atom) \
+ if (atom->property->fun.builtin->compile) \
+ LispDestroy("%s: the special form %s cannot be redefined", \
+ STRFUN(builtin), atom->string)
+
+
+
+#define CONSTANTP(object) \
+ (!POINTERP(object) || \
+ XOBJECT_TYPE(object) < LispAtom_t || \
+ (XSYMBOLP(object) && XKEYWORDP(object)))
+
+/* slightly faster test, since keywords are very uncommon as eval arguments */
+#define NCONSTANTP(object) \
+ (OBJECT_TYPE(object) >= LispAtom_t)
+
+
+/*
+ * Types
+ */
+typedef struct _LispObj LispObj;
+typedef struct _LispAtom LispAtom;
+typedef struct _LispBuiltin LispBuiltin;
+typedef struct _LispModuleData LispModuleData;
+typedef struct _LispFile LispFile;
+typedef struct _LispString LispString;
+typedef struct _LispPackage LispPackage;
+typedef struct _LispBytecode LispBytecode;
+typedef struct _LispHashTable LispHashTable;
+
+/* Bytecode compiler data */
+typedef struct _LispCom LispCom;
+
+typedef char *Atom_id;
+
+typedef enum _LispType {
+ /* objects encoded in the LispObj pointer */
+ LispNil_t = 1,
+ LispFixnum_t = 3,
+ LispSChar_t = 5,
+
+ /* objects that have a structure */
+ LispInteger_t = 16,
+ LispDFloat_t,
+ LispString_t,
+ LispRatio_t,
+ LispOpaque_t,
+
+ /* simple access for marking */
+ LispBignum_t,
+ LispBigratio_t,
+
+ LispAtom_t,
+ LispFunction_t,
+ LispFunctionQuote_t,
+
+ LispLambda_t,
+
+ LispComplex_t,
+ LispCons_t,
+ LispQuote_t,
+ LispArray_t,
+ LispStruct_t,
+ LispStream_t,
+ LispBackquote_t,
+ LispComma_t,
+ LispPathname_t,
+ LispPackage_t,
+ LispRegex_t,
+ LispBytecode_t,
+ LispHashTable_t
+} LispType;
+
+typedef enum _LispFunType {
+ LispLambda,
+ LispFunction,
+ LispMacro,
+ LispSetf
+} LispFunType;
+
+typedef enum _LispStreamType {
+ LispStreamString,
+ LispStreamFile,
+ LispStreamStandard,
+ LispStreamPipe
+} LispStreamType;
+
+typedef struct {
+ int pid; /* process id of program */
+ LispFile *input; /* if READABLE: stdout of program */
+ LispFile *output; /* if WRITABLE: stdin of program */
+ LispObj *errorp; /* ALWAYS (ONLY) READABLE: stderr of program */
+} LispPipe;
+
+struct _LispObj {
+ LispType type : 6;
+ unsigned int mark : 1; /* gc protected */
+ unsigned int prot: 1; /* protection for constant/unamed variables */
+ LispFunType funtype : 4; /* this is subject to change in the future */
+ union {
+ LispAtom *atom;
+ struct {
+ char *string;
+ long length;
+ int writable : 1;
+ } string;
+ long integer;
+ double dfloat;
+ LispObj *quote;
+ LispObj *pathname; /* don't use quote generic name,
+ * to avoid confusing code */
+ struct {
+ long numerator;
+ long denominator;
+ } ratio;
+ union {
+ mpi *integer;
+ mpr *ratio;
+ } mp;
+ struct {
+ LispObj *real;
+ LispObj *imag;
+ } complex;
+ struct {
+ LispObj *car;
+ LispObj *cdr;
+ } cons;
+ struct {
+ LispObj *name;
+ LispObj *code;
+ LispObj *data; /* extra data to protect */
+ } lambda;
+ struct {
+ LispObj *list; /* stored as a linear list */
+ LispObj *dim; /* dimensions of array */
+ unsigned int rank : 8; /* i.e. array-rank-limit => 256 */
+ unsigned int type : 7; /* converted to LispType, if not
+ * Lisp_Nil_t only accepts given
+ * type in array fields */
+ unsigned int zero : 1; /* at least one of the dimensions
+ * is zero */
+ } array;
+ struct {
+ LispObj *fields; /* structure fields */
+ LispObj *def; /* structure definition */
+ } struc;
+ struct {
+ union {
+ LispFile *file;
+ LispPipe *program;
+ LispString *string;
+ } source;
+ LispObj *pathname;
+ LispStreamType type : 6;
+ int readable : 1;
+ int writable : 1;
+ } stream;
+ struct {
+ void *data;
+ int type;
+ } opaque;
+ struct {
+ LispObj *eval;
+ int atlist;
+ } comma;
+ struct {
+ LispObj *name;
+ LispObj *nicknames;
+ LispPackage *package;
+ } package;
+ struct {
+ re_cod *regex;
+ LispObj *pattern; /* regex string */
+ int options; /* regex compile flags */
+ } regex;
+ struct {
+ LispBytecode *bytecode;
+ LispObj *code; /* object used to generate bytecode */
+ LispObj *name; /* name of function, or NIL */
+ } bytecode;
+ struct {
+ LispHashTable *table;
+ LispObj *test;
+ } hash;
+ } data;
+};
+
+typedef LispObj *(*LispFunPtr)(LispBuiltin*);
+typedef void (*LispComPtr)(LispCom*, LispBuiltin*);
+
+struct _LispBuiltin {
+ /* these fields must be set */
+ LispFunType type;
+ LispFunPtr function;
+ char *declaration;
+
+ /* this field is optional, set if the function returns multiple values */
+ int multiple_values;
+
+ /* this field is also optional, set if the function should not be exported */
+ int internal;
+
+ /* this optional field points to a function of the bytecode compiler */
+ LispComPtr compile;
+
+ /* this field is set at runtime */
+ LispObj *symbol;
+};
+
+typedef int (*LispLoadModule)(void);
+typedef int (*LispUnloadModule)(void);
+
+#define LISP_MODULE_VERSION 1
+struct _LispModuleData {
+ int version;
+ LispLoadModule load;
+ LispUnloadModule unload;
+};
+
+/*
+ * Prototypes
+ */
+LispObj *LispEval(LispObj*);
+LispObj *LispFuncall(LispObj*, LispObj*, int);
+LispObj *LispApply1(LispObj*, LispObj*);
+LispObj *LispApply2(LispObj*, LispObj*, LispObj*);
+LispObj *LispApply3(LispObj*, LispObj*, LispObj*, LispObj*);
+
+LispObj *LispNew(LispObj*, LispObj*);
+LispObj *LispNewSymbol(LispAtom*);
+LispObj *LispNewAtom(char*, int);
+LispObj *LispNewFunction(LispObj*);
+LispObj *LispNewFunctionQuote(LispObj*);
+LispObj *LispNewStaticAtom(char*);
+LispObj *LispNewDFloat(double);
+LispObj *LispNewString(char*, long, int);
+LispObj *LispNewInteger(long);
+LispObj *LispNewRatio(long, long);
+LispObj *LispNewVector(LispObj*);
+LispObj *LispNewQuote(LispObj*);
+LispObj *LispNewBackquote(LispObj*);
+LispObj *LispNewComma(LispObj*, int);
+LispObj *LispNewCons(LispObj*, LispObj*);
+LispObj *LispNewLambda(LispObj*, LispObj*, LispObj*, LispFunType);
+LispObj *LispNewStruct(LispObj*, LispObj*);
+LispObj *LispNewComplex(LispObj*, LispObj*);
+LispObj *LispNewOpaque(void*, int);
+LispObj *LispNewKeyword(char*);
+LispObj *LispNewPathname(LispObj*);
+LispObj *LispNewStringStream(char*, int, long, int);
+LispObj *LispNewFileStream(LispFile*, LispObj*, int);
+LispObj *LispNewPipeStream(LispPipe*, LispObj*, int);
+LispObj *LispNewBignum(mpi*);
+LispObj *LispNewBigratio(mpr*);
+
+LispAtom *LispGetAtom(char*);
+
+/* This function does not allocate a copy of it's argument, but the argument
+ * itself. The argument string should never change. */
+LispAtom *LispGetPermAtom(char*);
+
+void *LispMalloc(size_t);
+void *LispCalloc(size_t, size_t);
+void *LispRealloc(void*, size_t);
+char *LispStrdup(char*);
+void LispFree(void*);
+/* LispMused means memory is now safe from LispDestroy, and should not be
+ * freed in case of an error */
+void LispMused(void*);
+
+void LispGC(LispObj*, LispObj*);
+
+char *LispStrObj(LispObj*);
+
+#ifdef __GNUC__
+#define PRINTF_FORMAT __attribute__ ((format (printf, 1, 2)))
+#else
+#define PRINTF_FORMAT /**/
+#endif
+void LispDestroy(char *fmt, ...) PRINTF_FORMAT;
+ /* continuable error */
+void LispContinuable(char *fmt, ...) PRINTF_FORMAT;
+void LispMessage(char *fmt, ...) PRINTF_FORMAT;
+void LispWarning(char *fmt, ...) PRINTF_FORMAT;
+#undef PRINTF_FORMAT
+
+LispObj *LispSetVariable(LispObj*, LispObj*, char*, int);
+
+int LispRegisterOpaqueType(char*);
+
+int LispPrintString(LispObj*, char*);
+
+void LispProtect(LispObj*, LispObj*);
+void LispUProtect(LispObj*, LispObj*);
+
+/* this function should be called when a module is loaded, and is called
+ * when loading the interpreter */
+void LispAddBuiltinFunction(LispBuiltin*);
+
+/*
+ * Initialization
+ */
+extern LispObj *UNBOUND;
+extern int gcpro;
+
+extern LispObj *Okey, *Orest, *Ooptional, *Oaux, *Olambda;
+extern Atom_id Snil, St, Skey, Srest, Soptional, Saux;
+extern Atom_id Sand, Sor, Snot;
+extern Atom_id Satom, Ssymbol, Sinteger, Scharacter, Sstring, Slist,
+ Scons, Svector, Sarray, Sstruct, Skeyword, Sfunction, Spathname,
+ Srational, Sfloat, Scomplex, Sopaque, Sdefault;
+
+extern LispObj *Ocomplex, *Oformat, *Kunspecific;
+
+extern LispObj *Omake_array, *Kinitial_contents, *Osetf;
+extern Atom_id Svariable, Sstructure, Stype, Ssetf;
+
+extern Atom_id Smake_struct, Sstruct_access, Sstruct_store, Sstruct_type;
+extern LispObj *Omake_struct, *Ostruct_access, *Ostruct_store, *Ostruct_type;
+
+extern LispObj *Oparse_namestring, *Kerror, *Kabsolute, *Krelative, *Oopen,
+ *Oclose, *Kif_does_not_exist;
+
+extern LispObj *Oequal_;
+
+extern LispFile *Stdout, *Stdin, *Stderr;
+
+#endif /* Lisp_internal_h */