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/* Scheme In One Defun, but in C this time.
 *                   COPYRIGHT (c) 1988-1994 BY                             *
 *        See the source file SLIB.C for more information.                  *

 $Id: siod.h,v 2000/12/09 01:57:11 thhsieh Exp $


struct obj
{short gc_mark;
 short type;
 union {struct {struct obj * car;
            struct obj * cdr;} cons;
      struct {double data;} flonum;
      struct {char *pname;
            struct obj * vcell;} symbol;
      struct {char *name;
            struct obj * (*f)(void);} subr0;
      struct {char *name;
            struct obj * (*f)(struct obj *);} subr1;
      struct {char *name;
            struct obj * (*f)(struct obj *, struct obj *);} subr2;
      struct {char *name;
            struct obj * (*f)(struct obj *, struct obj *, struct obj *);
            } subr3;
      struct {char *name;
            struct obj * (*f)(struct obj *, struct obj *, struct obj *,
                          struct obj *);
            } subr4;
      struct {char *name;
            struct obj * (*f)(struct obj *, struct obj *, struct obj *,
                          struct obj *,struct obj *);
            } subr5;
      struct {char *name;
            struct obj * (*f)(struct obj **, struct obj **);} subrm;
      struct {char *name;
            struct obj * (*f)(void *,...);} subr;
      struct {struct obj *env;
            struct obj *code;} closure;
      struct {long dim;
            long *data;} long_array;
      struct {long dim;
            double *data;} double_array;
      struct {long dim;
            char *data;} string;
      struct {long dim;
            unsigned char *data;} u_string;
      struct {long dim;
            signed char *data;} s_string;
      struct {long dim;
            struct obj **data;} lisp_array;
      struct {FILE *f;
            char *name;} c_file;}

#define CAR(x) ((*x).storage_as.cons.car)
#define CDR(x) ((*x).storage_as.cons.cdr)
#define PNAME(x) ((*x).storage_as.symbol.pname)
#define VCELL(x) ((*x).storage_as.symbol.vcell)
#define SUBR0(x) (*((*x).storage_as.subr0.f))
#define SUBR1(x) (*((*x).storage_as.subr1.f))
#define SUBR2(x) (*((*x).storage_as.subr2.f))
#define SUBR3(x) (*((*x).storage_as.subr3.f))
#define SUBR4(x) (*((*x).storage_as.subr4.f))
#define SUBR5(x) (*((*x).storage_as.subr5.f))
#define SUBRM(x) (*((*x).storage_as.subrm.f))
#define SUBRF(x) (*((*x).storage_as.subr.f))
#define FLONM(x) ((*x).storage_as.flonum.data)

#define NIL ((struct obj *) 0)
#define EQ(x,y) ((x) == (y))
#define NEQ(x,y) ((x) != (y))
#define NULLP(x) EQ(x,NIL)
#define NNULLP(x) NEQ(x,NIL)

#define TYPE(x) (((x) == NIL) ? 0 : ((*(x)).type))

#define TYPEP(x,y) (TYPE(x) == (y))
#define NTYPEP(x,y) (TYPE(x) != (y))

#define tc_nil    0
#define tc_cons   1
#define tc_flonum 2
#define tc_symbol 3
#define tc_subr_0 4
#define tc_subr_1 5
#define tc_subr_2 6
#define tc_subr_3 7
#define tc_lsubr  8
#define tc_fsubr  9
#define tc_msubr  10
#define tc_closure 11
#define tc_free_cell 12
#define tc_string       13
#define tc_double_array 14
#define tc_long_array   15
#define tc_lisp_array   16
#define tc_c_file       17
#define tc_byte_array   18
#define tc_subr_4 19
#define tc_subr_5 20
#define tc_subr_2n 21
#define FO_comment 35
#define tc_user_min 50
#define tc_user_max 100

#define FO_fetch 127
#define FO_store 126
#define FO_list  125
#define FO_listd 124

#define tc_table_dim 100

typedef struct obj* LISP;
typedef LISP (*SUBR_FUNC)(void); 

#define CONSP(x)   TYPEP(x,tc_cons)
#define FLONUMP(x) TYPEP(x,tc_flonum)
#define SYMBOLP(x) TYPEP(x,tc_symbol)

#define NCONSP(x)   NTYPEP(x,tc_cons)
#define NFLONUMP(x) NTYPEP(x,tc_flonum)
#define NSYMBOLP(x) NTYPEP(x,tc_symbol)

#define TKBUFFERN 5120

#ifndef WIN32
#define __stdcall

struct gen_readio
{int (*getc_fcn)(void *);
 void (*ungetc_fcn)(int,void *);
 void *cb_argument;};

struct gen_printio
{int (*putc_fcn)(int,void *);
 int (*puts_fcn)(char *,void *);
 void *cb_argument;};

#define GETC_FCN(x) (*((*x).getc_fcn))((*x).cb_argument)
#define UNGETC_FCN(c,x) (*((*x).ungetc_fcn))(c,(*x).cb_argument)
#define PUTC_FCN(c,x) (*((*x).putc_fcn))(c,(*x).cb_argument)
#define PUTS_FCN(c,x) (*((*x).puts_fcn))(c,(*x).cb_argument)

struct repl_hooks
{void (*repl_puts)(char *);
 LISP (*repl_read)(void);
 LISP (*repl_eval)(LISP);
 void (*repl_print)(LISP);};

void __stdcall process_cla(int argc,char **argv,int warnflag);
void __stdcall print_welcome(void);
void __stdcall print_hs_1(void);
void __stdcall print_hs_2(void);
long no_interrupt(long n);
LISP get_eof_val(void);
long repl_driver(long want_sigint,long want_init,struct repl_hooks *);
void set_repl_hooks(void (*puts_f)(char *),
                LISP (*read_f)(void),
                LISP (*eval_f)(LISP),
                void (*print_f)(LISP));
long repl(struct repl_hooks *);
LISP err(const char *message, LISP x);
LISP errswitch(void);
char *get_c_string(LISP x);
char *get_c_string_dim(LISP x,long *);
char *try_get_c_string(LISP x);
long get_c_long(LISP x);
double get_c_double(LISP x);
LISP lerr(LISP message, LISP x);

LISP newcell(long type);
LISP cons(LISP x,LISP y);
LISP consp(LISP x);
LISP car(LISP x);
LISP cdr(LISP x);
LISP setcar(LISP cell, LISP value);
LISP setcdr(LISP cell, LISP value);
LISP flocons(double x);
LISP numberp(LISP x);
LISP plus(LISP x,LISP y);
LISP ltimes(LISP x,LISP y);
LISP difference(LISP x,LISP y);
LISP Quotient(LISP x,LISP y);
LISP greaterp(LISP x,LISP y);
LISP lessp(LISP x,LISP y);
LISP eql(LISP x,LISP y);
LISP symcons(char *pname,LISP vcell);
LISP symbolp(LISP x);
LISP symbol_boundp(LISP x,LISP env);
LISP symbol_value(LISP x,LISP env);
LISP cintern(char *name);
LISP rintern(char *name);
LISP subrcons(long type, char *name, SUBR_FUNC f);
LISP closure(LISP env,LISP code);
void gc_protect(LISP *location);
void gc_protect_n(LISP *location,long n);
void gc_protect_sym(LISP *location,char *st);

void __stdcall init_storage(void);
void __stdcall init_slibu(void);

void init_subr(char *name, long type, SUBR_FUNC fcn);
void init_subr_0(char *name, LISP (*fcn)(void));
void init_subr_1(char *name, LISP (*fcn)(LISP));
void init_subr_2(char *name, LISP (*fcn)(LISP,LISP));
void init_subr_2n(char *name, LISP (*fcn)(LISP,LISP));
void init_subr_3(char *name, LISP (*fcn)(LISP,LISP,LISP));
void init_subr_4(char *name, LISP (*fcn)(LISP,LISP,LISP,LISP));
void init_subr_5(char *name, LISP (*fcn)(LISP,LISP,LISP,LISP,LISP));
void init_lsubr(char *name, LISP (*fcn)(LISP));
void init_fsubr(char *name, LISP (*fcn)(LISP,LISP));
void init_msubr(char *name, LISP (*fcn)(LISP *,LISP *));

LISP assq(LISP x,LISP alist);
LISP delq(LISP elem,LISP l);
void set_gc_hooks(long type,
              LISP (*rel)(LISP),
              LISP (*mark)(LISP),
              void (*scan)(LISP),
              void (*free)(LISP),
              long *kind);
LISP gc_relocate(LISP x);
LISP user_gc(LISP args);
LISP gc_status(LISP args);
void set_eval_hooks(long type,LISP (*fcn)(LISP, LISP *, LISP *));
LISP leval(LISP x,LISP env);
LISP symbolconc(LISP args);
void set_print_hooks(long type,void (*fcn)(LISP, struct gen_printio *));
LISP lprin1g(LISP exp,struct gen_printio *f);
LISP lprin1f(LISP exp,FILE *f);
LISP lprint(LISP exp,LISP);
LISP lread(LISP);
LISP lreadtk(char *,long j);
LISP lreadf(FILE *f);
void set_read_hooks(char *all_set,char *end_set,
                LISP (*fcn1)(int, struct gen_readio *),
                LISP (*fcn2)(char *,long, int *));
LISP apropos(LISP);
LISP vload(char *fname,long cflag,long rflag);
LISP load(LISP fname,LISP cflag,LISP rflag);
LISP require(LISP fname);
LISP save_forms(LISP fname,LISP forms,LISP how);
LISP quit(void);
LISP nullp(LISP x);
LISP strcons(long length,const char *data);
LISP read_from_string(LISP x);
LISP aref1(LISP a,LISP i);
LISP aset1(LISP a,LISP i,LISP v);
LISP cons_array(LISP dim,LISP kind);
LISP arcons(long typecode,long n,long initp);
LISP string_append(LISP args);
LISP string_length(LISP string);
LISP string_search(LISP,LISP);
LISP string_trim(LISP);
LISP string_trim_left(LISP);
LISP string_trim_right(LISP);
LISP string_upcase(LISP);
LISP string_downcase(LISP);
void __stdcall init_subrs(void);
LISP copy_list(LISP);
long c_sxhash(LISP,long);
LISP fast_print(LISP,LISP);
LISP fast_read(LISP);
LISP assoc(LISP x,LISP alist);
LISP make_list(LISP x,LISP v);
void set_fatal_exit_hook(void (*fcn)(void));
LISP parse_number(LISP x);
LISP intern(LISP x);
void __stdcall init_trace(void);
long __stdcall repl_c_string(char *,long want_sigint,long want_init,long want_print);
char * __stdcall siod_version(void);
LISP nreverse(LISP);
LISP number2string(LISP,LISP,LISP,LISP);
LISP string2number(LISP,LISP);
LISP siod_verbose(LISP);
int __stdcall siod_verbose_check(int);
long allocate_user_tc(void);
LISP cadr(LISP);
LISP caar(LISP);
LISP cddr(LISP);
LISP caaar(LISP);
LISP caadr(LISP);
LISP cadar(LISP);
LISP caddr(LISP);
LISP cdaar(LISP);
LISP cdadr(LISP);
LISP cddar(LISP);
LISP cdddr(LISP);
void chk_string(LISP,char **,long *);
LISP a_true_value(void);
LISP lapply(LISP fcn,LISP args);
LISP mallocl(void *lplace,long size);
void gput_st(struct gen_printio *,char *);
void put_st(char *st);
LISP listn(long n, ...);
char *must_malloc(unsigned long size);
LISP lstrbreakup(LISP str,LISP lmarker);
LISP lstrunbreakup(LISP elems,LISP lmarker);
LISP poparg(LISP *,LISP);
FILE *get_c_file(LISP p,FILE *deflt);
char *last_c_errmsg(int);
LISP llast_c_errmsg(int);

#define SAFE_STRCPY(_to,_from) safe_strcpy((_to),sizeof(_to),(_from))
#define SAFE_STRCAT(_to,_from) safe_strcat((_to),sizeof(_to),(_from))
#define SAFE_STRLEN(_buff) safe_strlen((_buff),sizeof(_buff))

char *safe_strcpy(char *s1,size_t size1,const char *s2);
char *safe_strcat(char *s1,size_t size1,const char *s2);

size_t safe_strlen(const char *s,size_t size);
LISP memq(LISP x,LISP il);
LISP lstrbreakup(LISP,LISP);
LISP lstrbreakup(LISP,LISP);
LISP butlast(LISP);
LISP last(LISP);
LISP readtl(struct gen_readio *f);
LISP funcall1(LISP,LISP);
LISP lgetc(LISP p);
LISP lungetc(LISP i,LISP p);
LISP lputc(LISP c,LISP p);
LISP lputs(LISP str,LISP p);

int assemble_options(LISP, ...);
LISP ccall_catch(LISP tag,LISP (*fcn)(void *),void *);
LISP lref_default(LISP li,LISP x,LISP fcn);

LISP symalist(char *item,...);

LISP encode_st_mode(LISP l);
LISP encode_open_flags(LISP l);
long nlength(LISP obj);
int __stdcall siod_main(int argc,char **argv, char **env);
void __stdcall siod_shuffle_args(int *pargc,char ***pargv);
void __stdcall siod_init(int argc,char **argv);

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