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/* SCHEME.H */
#ifndef _SCHEME_H
#define _SCHEME_H
#include <stdio.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Default values for #define'd symbols
*/
#ifndef STANDALONE /* If used as standalone interpreter */
# define STANDALONE 1
#endif
#ifndef _MSC_VER
# define USE_STRCASECMP 1
# ifndef USE_STRLWR
# define USE_STRLWR 1
# endif
# define SCHEME_EXPORT
#else
# define USE_STRCASECMP 0
# define USE_STRLWR 0
# ifdef _SCHEME_SOURCE
# define SCHEME_EXPORT __declspec(dllexport)
# else
# define SCHEME_EXPORT __declspec(dllimport)
# endif
#endif
#if USE_NO_FEATURES
# define USE_MATH 0
# define USE_CHAR_CLASSIFIERS 0
# define USE_ASCII_NAMES 0
# define USE_STRING_PORTS 0
# define USE_ERROR_HOOK 0
# define USE_TRACING 0
# define USE_COLON_HOOK 0
# define USE_COMPILE_HOOK 0
# define USE_DL 0
# define USE_PLIST 0
# define USE_SMALL_INTEGERS 0
# define USE_HISTORY 0
#endif
#if USE_DL
# define USE_INTERFACE 1
#endif
#ifndef USE_MATH /* If math support is needed */
# define USE_MATH 1
#endif
#ifndef USE_CHAR_CLASSIFIERS /* If char classifiers are needed */
# define USE_CHAR_CLASSIFIERS 1
#endif
#ifndef USE_ASCII_NAMES /* If extended escaped characters are needed */
# define USE_ASCII_NAMES 1
#endif
#ifndef USE_STRING_PORTS /* Enable string ports */
# define USE_STRING_PORTS 1
#endif
#ifndef USE_TRACING
# define USE_TRACING 1
#endif
#ifndef USE_PLIST
# define USE_PLIST 0
#endif
/* Keep a history of function calls. This enables a feature similar
* to stack traces. */
#ifndef USE_HISTORY
# define USE_HISTORY 1
#endif
/* To force system errors through user-defined error handling (see *error-hook*) */
#ifndef USE_ERROR_HOOK
# define USE_ERROR_HOOK 1
#endif
#ifndef USE_COLON_HOOK /* Enable qualified qualifier */
# define USE_COLON_HOOK 1
#endif
/* Compile functions using *compile-hook*. The default hook expands
* macros. */
#ifndef USE_COMPILE_HOOK
# define USE_COMPILE_HOOK 1
#endif
/* Enable faster opcode dispatch. */
#ifndef USE_THREADED_CODE
# define USE_THREADED_CODE 1
#endif
/* Use a static set of cells to represent small numbers. This set
* notably includes all opcodes, and hence saves a cell reservation
* during 's_save'. */
#ifndef USE_SMALL_INTEGERS
# define USE_SMALL_INTEGERS 1
#endif
#ifndef USE_STRCASECMP /* stricmp for Unix */
# define USE_STRCASECMP 0
#endif
#ifndef USE_STRLWR
# define USE_STRLWR 1
#endif
#ifndef STDIO_ADDS_CR /* Define if DOS/Windows */
# define STDIO_ADDS_CR 0
#endif
#ifndef INLINE
# define INLINE
#endif
#ifndef USE_INTERFACE
# define USE_INTERFACE 0
#endif
#ifndef SHOW_ERROR_LINE /* Show error line in file */
# define SHOW_ERROR_LINE 1
#endif
typedef struct scheme scheme;
typedef struct cell *pointer;
typedef void * (*func_alloc)(size_t);
typedef void (*func_dealloc)(void *);
/* table of functions required for foreign objects */
typedef struct foreign_object_vtable {
void (*finalize)(scheme *sc, void *data);
void (*to_string)(scheme *sc, char *out, size_t size, void *data);
} foreign_object_vtable;
/* num, for generic arithmetic */
typedef struct num {
char is_fixnum;
union {
long ivalue;
double rvalue;
} value;
} num;
SCHEME_EXPORT scheme *scheme_init_new(void);
SCHEME_EXPORT scheme *scheme_init_new_custom_alloc(func_alloc malloc, func_dealloc free);
SCHEME_EXPORT int scheme_init(scheme *sc);
SCHEME_EXPORT int scheme_init_custom_alloc(scheme *sc, func_alloc, func_dealloc);
SCHEME_EXPORT void scheme_deinit(scheme *sc);
void scheme_set_input_port_file(scheme *sc, FILE *fin);
void scheme_set_input_port_string(scheme *sc, char *start, char *past_the_end);
SCHEME_EXPORT void scheme_set_output_port_file(scheme *sc, FILE *fin);
void scheme_set_output_port_string(scheme *sc, char *start, char *past_the_end);
SCHEME_EXPORT void scheme_load_file(scheme *sc, FILE *fin);
SCHEME_EXPORT void scheme_load_named_file(scheme *sc, FILE *fin, const char *filename);
SCHEME_EXPORT void scheme_load_string(scheme *sc, const char *cmd);
SCHEME_EXPORT void scheme_load_memory(scheme *sc, const char *buf, size_t len,
const char *filename);
SCHEME_EXPORT pointer scheme_apply0(scheme *sc, const char *procname);
SCHEME_EXPORT pointer scheme_call(scheme *sc, pointer func, pointer args);
SCHEME_EXPORT pointer scheme_eval(scheme *sc, pointer obj);
void scheme_set_external_data(scheme *sc, void *p);
SCHEME_EXPORT void scheme_define(scheme *sc, pointer env, pointer symbol, pointer value);
typedef pointer (*foreign_func)(scheme *, pointer);
pointer _cons(scheme *sc, pointer a, pointer b, int immutable);
pointer mk_integer(scheme *sc, long num);
pointer mk_real(scheme *sc, double num);
pointer mk_symbol(scheme *sc, const char *name);
pointer gensym(scheme *sc);
pointer mk_string(scheme *sc, const char *str);
pointer mk_counted_string(scheme *sc, const char *str, int len);
pointer mk_empty_string(scheme *sc, int len, char fill);
pointer mk_character(scheme *sc, int c);
pointer mk_foreign_func(scheme *sc, foreign_func f);
pointer mk_foreign_object(scheme *sc, const foreign_object_vtable *vtable, void *data);
void putstr(scheme *sc, const char *s);
int list_length(scheme *sc, pointer a);
int eqv(pointer a, pointer b);
#if USE_INTERFACE
struct scheme_interface {
void (*scheme_define)(scheme *sc, pointer env, pointer symbol, pointer value);
pointer (*cons)(scheme *sc, pointer a, pointer b);
pointer (*immutable_cons)(scheme *sc, pointer a, pointer b);
pointer (*reserve_cells)(scheme *sc, int n);
pointer (*mk_integer)(scheme *sc, long num);
pointer (*mk_real)(scheme *sc, double num);
pointer (*mk_symbol)(scheme *sc, const char *name);
pointer (*gensym)(scheme *sc);
pointer (*mk_string)(scheme *sc, const char *str);
pointer (*mk_counted_string)(scheme *sc, const char *str, int len);
pointer (*mk_character)(scheme *sc, int c);
pointer (*mk_vector)(scheme *sc, int len);
pointer (*mk_foreign_func)(scheme *sc, foreign_func f);
pointer (*mk_foreign_object)(scheme *sc, const foreign_object_vtable *vtable, void *data);
const foreign_object_vtable *(*get_foreign_object_vtable)(pointer p);
void *(*get_foreign_object_data)(pointer p);
void (*putstr)(scheme *sc, const char *s);
void (*putcharacter)(scheme *sc, int c);
int (*is_string)(pointer p);
char *(*string_value)(pointer p);
int (*is_number)(pointer p);
num (*nvalue)(pointer p);
long (*ivalue)(pointer p);
double (*rvalue)(pointer p);
int (*is_integer)(pointer p);
int (*is_real)(pointer p);
int (*is_character)(pointer p);
long (*charvalue)(pointer p);
int (*is_list)(scheme *sc, pointer p);
int (*is_vector)(pointer p);
int (*list_length)(scheme *sc, pointer vec);
long (*vector_length)(pointer vec);
void (*fill_vector)(pointer vec, pointer elem);
pointer (*vector_elem)(pointer vec, int ielem);
pointer (*set_vector_elem)(pointer vec, int ielem, pointer newel);
int (*is_port)(pointer p);
int (*is_pair)(pointer p);
pointer (*pair_car)(pointer p);
pointer (*pair_cdr)(pointer p);
pointer (*set_car)(pointer p, pointer q);
pointer (*set_cdr)(pointer p, pointer q);
int (*is_symbol)(pointer p);
char *(*symname)(pointer p);
int (*is_syntax)(pointer p);
int (*is_proc)(pointer p);
int (*is_foreign)(pointer p);
char *(*syntaxname)(pointer p);
int (*is_closure)(pointer p);
int (*is_macro)(pointer p);
pointer (*closure_code)(pointer p);
pointer (*closure_env)(pointer p);
int (*is_continuation)(pointer p);
int (*is_promise)(pointer p);
int (*is_environment)(pointer p);
int (*is_immutable)(pointer p);
void (*setimmutable)(pointer p);
void (*load_file)(scheme *sc, FILE *fin);
void (*load_string)(scheme *sc, const char *input);
pointer (*mk_port_from_file)(scheme *sc, FILE *f, int kind);
};
#endif
#if !STANDALONE
typedef struct scheme_registerable
{
foreign_func f;
const char * name;
}
scheme_registerable;
void scheme_register_foreign_func_list(scheme * sc,
scheme_registerable * list,
int n);
#endif /* !STANDALONE */
#ifdef __cplusplus
}
#endif
#endif
/*
Local variables:
c-file-style: "k&r"
End:
*/
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