cvsroot/microscheme/scheme.h


/* SCHEME.H */

#ifndef SCHEME_H
#define SCHEME_H

#include <inttypes.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

#define USE_STRCASECMP 1
#ifndef USE_STRLWR
# define USE_STRLWR 1
#endif
#define SCHEME_EXPORT static

#if USE_NO_FEATURES
# define USE_MULTIPLICITY 0
# define USE_MATH 0
# define USE_CHAR_CLASSIFIERS 0
# define USE_ASCII_NAMES 0
# define USE_PORTS 1
# define USE_STRING_PORTS 0
# define USE_ERROR_HOOK 0
# define USE_TRACING 0
# define USE_COLON_HOOK 0
# define USE_DL 0
# define USE_PLIST 0
# define USE_FLOAT 0
# define USE_ERROR_CHECKING 0
# define USE_PRINTF 0
#endif

/*
 * Define: much slower, but somewhat smaller evaluation stack implemention, use more memory
 * Undefined: faster, somewhat bigger implementation, uses less memory at runtime
 */
/*#define USE_SCHEME_STACK*/

#ifndef USE_MULTIPLICITY
# define USE_MULTIPLICITY 1
#endif

#ifndef USE_FLOAT
# define USE_FLOAT 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_PORTS              /* Enable ports */
# define USE_PORTS 1
#endif

#ifndef USE_STRING_PORTS       /* Enable string ports */
# define USE_STRING_PORTS USE_PORTS
#endif

#ifndef USE_TRACING
# define USE_TRACING 1
#endif

#ifndef USE_PLIST
# define USE_PLIST 0
#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

#ifndef USE_ERROR_CHECKING
# define USE_ERROR_CHECKING 1
#endif

#ifndef USE_PRINTF
# define USE_PRINTF 1
#endif

#ifndef USE_STRLWR
# define USE_STRLWR 1
#endif

#ifndef INLINE
# define INLINE inline
#endif

#ifndef SHOW_ERROR_LINE        /* Show error line in file */
# define SHOW_ERROR_LINE 1
#endif

#if USE_MULTIPLICITY
# define SCHEME_V sc
# define SCHEME_P scheme *SCHEME_V
# define SCHEME_P_ SCHEME_P,
# define SCHEME_A SCHEME_V
# define SCHEME_A_ SCHEME_A,
#else
# define SCHEME_V (&sc)
# define SCHEME_P
# define SCHEME_P_
# define SCHEME_A
# define SCHEME_A_
#endif

  typedef struct scheme scheme;
  typedef struct cell *pointer;

  typedef void *(*func_alloc) (size_t);
  typedef void (*func_dealloc) (void *);

  typedef long IVALUE;          /* this is not used consistently yet */

#if USE_FLOAT
  typedef double RVALUE;
# define num_is_fixnum(n)    (n).is_fixnum
# define num_set_fixnum(n,f) (n).is_fixnum = (f)
# define num_ivalue(n)       (n).value.ivalue
# define num_rvalue(n)       (n).value.rvalue
# define num_set_ivalue(n,i) (n).value.ivalue = (i)
# define num_set_rvalue(n,r) (n).value.rvalue = (r)
#else
  typedef long RVALUE;
# define num_is_fixnum(n)    1
# define num_set_fixnum(n,f) 0
# define num_ivalue(n)       (n).value.ivalue
# define num_rvalue(n)       (n).value.ivalue
# define num_set_ivalue(n,i) (n).value.ivalue = (i)
# define num_set_rvalue(n,r) (n).value.ivalue = (r)
#endif

/* num, for generic arithmetic */
  typedef struct num
  {
    union
    {
      long ivalue;
#if USE_FLOAT
      RVALUE rvalue;
#endif
    } value;
#if USE_FLOAT
    char is_fixnum;
#endif
  } num;

/* Used for documentation purposes, to signal functions in 'interface' */
#define INTERFACE static

  SCHEME_EXPORT scheme *scheme_init_new ();
  SCHEME_EXPORT int scheme_init (SCHEME_P);
  SCHEME_EXPORT void scheme_deinit (SCHEME_P);
  void scheme_set_input_port_file (SCHEME_P_ int fin);
  void scheme_set_input_port_string (SCHEME_P_ char *start, char *past_the_end);
  SCHEME_EXPORT void scheme_set_output_port_file (SCHEME_P_ int fin);
  void scheme_set_output_port_string (SCHEME_P_ char *start, char *past_the_end);
  SCHEME_EXPORT void scheme_load_file (SCHEME_P_ int fin);
  SCHEME_EXPORT void scheme_load_named_file (SCHEME_P_ int fin, const char *filename);
  SCHEME_EXPORT void scheme_load_string (SCHEME_P_ const char *cmd);
  SCHEME_EXPORT pointer scheme_apply0 (SCHEME_P_ const char *procname);
  SCHEME_EXPORT pointer scheme_call (SCHEME_P_ pointer func, pointer args);
  SCHEME_EXPORT pointer scheme_eval (SCHEME_P_ pointer obj);
  void scheme_set_external_data (SCHEME_P_ void *p);
  SCHEME_EXPORT void scheme_define (SCHEME_P_ pointer env, pointer symbol, pointer value);

  typedef pointer (*foreign_func) (SCHEME_P_ pointer);

  pointer xcons (SCHEME_P_ pointer a, pointer b, int immutable);
  INTERFACE pointer mk_integer (SCHEME_P_ long num);
  INTERFACE pointer mk_real (SCHEME_P_ RVALUE num);
  INTERFACE pointer mk_symbol (SCHEME_P_ const char *name);
  INTERFACE pointer gensym (SCHEME_P);
  INTERFACE pointer mk_string (SCHEME_P_ const char *str);
  INTERFACE pointer mk_counted_string (SCHEME_P_ const char *str, uint32_t len);
  INTERFACE pointer mk_empty_string (SCHEME_P_ uint32_t len, char fill);
  INTERFACE pointer mk_character (SCHEME_P_ int c);
  INTERFACE pointer mk_foreign_func (SCHEME_P_ foreign_func f);
  INTERFACE void putstr (SCHEME_P_ const char *s);
  INTERFACE int list_length (SCHEME_P_ pointer a);
  INTERFACE int eqv (pointer a, pointer b);

#if !STANDALONE
  typedef struct scheme_registerable
  {
    foreign_func f;
    const char *name;
  }
  scheme_registerable;

  void scheme_register_foreign_func_list (SCHEME_P_ scheme_registerable * list, int n);

#endif                         /* !STANDALONE */

#ifdef __cplusplus
}
#endif

#endif

/*
Local variables:
c-file-style: "k&r"
End:
*/
Revision:	1.4
Committed:	Wed Nov 25 10:47:43 2015 UTC (8 years, 7 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.3:	+3 -7 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.1
2			/* SCHEME.H */
3
4			#ifndef SCHEME_H
5	root	1.2	#define SCHEME_H
6	root	1.1
7	root	1.3	#include <inttypes.h>
8	root	1.2	#include <stdio.h>
9	root	1.1
10	root	1.2	#ifdef __cplusplus
11	root	1.1	extern "C"
12			{
13	root	1.2	#endif
14	root	1.1
15			/*
16			* Default values for #define'd symbols
17			*/
18	root	1.2	#ifndef STANDALONE /* If used as standalone interpreter */
19			# define STANDALONE 1
20			#endif
21
22			#define USE_STRCASECMP 1
23			#ifndef USE_STRLWR
24			# define USE_STRLWR 1
25			#endif
26			#define SCHEME_EXPORT static
27
28			#if USE_NO_FEATURES
29			# define USE_MULTIPLICITY 0
30			# define USE_MATH 0
31			# define USE_CHAR_CLASSIFIERS 0
32			# define USE_ASCII_NAMES 0
33			# define USE_PORTS 1
34			# define USE_STRING_PORTS 0
35			# define USE_ERROR_HOOK 0
36			# define USE_TRACING 0
37			# define USE_COLON_HOOK 0
38			# define USE_DL 0
39			# define USE_PLIST 0
40			# define USE_FLOAT 0
41			# define USE_ERROR_CHECKING 0
42			# define USE_PRINTF 0
43			#endif
44	root	1.1
45			/*
46	root	1.4	* Define: much slower, but somewhat smaller evaluation stack implemention, use more memory
47			* Undefined: faster, somewhat bigger implementation, uses less memory at runtime
48	root	1.1	*/
49	root	1.4	/#define USE_SCHEME_STACK/
50	root	1.2
51			#ifndef USE_MULTIPLICITY
52			# define USE_MULTIPLICITY 1
53			#endif
54
55			#ifndef USE_FLOAT
56			# define USE_FLOAT 1
57			#endif
58	root	1.1
59	root	1.2	#ifndef USE_MATH /* If math support is needed */
60			# define USE_MATH 1
61			#endif
62
63			#ifndef USE_CHAR_CLASSIFIERS /* If char classifiers are needed */
64			# define USE_CHAR_CLASSIFIERS 1
65			#endif
66
67			#ifndef USE_ASCII_NAMES /* If extended escaped characters are needed */
68			# define USE_ASCII_NAMES 1
69			#endif
70
71			#ifndef USE_PORTS /* Enable ports */
72			# define USE_PORTS 1
73			#endif
74
75			#ifndef USE_STRING_PORTS /* Enable string ports */
76			# define USE_STRING_PORTS USE_PORTS
77			#endif
78
79			#ifndef USE_TRACING
80			# define USE_TRACING 1
81			#endif
82
83			#ifndef USE_PLIST
84			# define USE_PLIST 0
85			#endif
86	root	1.1
87			/* To force system errors through user-defined error handling (see error-hook) */
88	root	1.2	#ifndef USE_ERROR_HOOK
89			# define USE_ERROR_HOOK 1
90			#endif
91
92			#ifndef USE_COLON_HOOK /* Enable qualified qualifier */
93			# define USE_COLON_HOOK 1
94			#endif
95
96			#ifndef USE_ERROR_CHECKING
97			# define USE_ERROR_CHECKING 1
98			#endif
99
100			#ifndef USE_PRINTF
101			# define USE_PRINTF 1
102			#endif
103
104			#ifndef USE_STRLWR
105			# define USE_STRLWR 1
106			#endif
107
108			#ifndef INLINE
109			# define INLINE inline
110			#endif
111
112			#ifndef SHOW_ERROR_LINE /* Show error line in file */
113			# define SHOW_ERROR_LINE 1
114			#endif
115
116			#if USE_MULTIPLICITY
117			# define SCHEME_V sc
118			# define SCHEME_P scheme *SCHEME_V
119			# define SCHEME_P_ SCHEME_P,
120			# define SCHEME_A SCHEME_V
121			# define SCHEME_A_ SCHEME_A,
122			#else
123			# define SCHEME_V (&sc)
124			# define SCHEME_P
125			# define SCHEME_P_
126			# define SCHEME_A
127			# define SCHEME_A_
128			#endif
129	root	1.1
130			typedef struct scheme scheme;
131			typedef struct cell *pointer;
132
133			typedef void (func_alloc) (size_t);
134			typedef void (func_dealloc) (void );
135
136			typedef long IVALUE; /* this is not used consistently yet */
137
138	root	1.2	#if USE_FLOAT
139	root	1.1	typedef double RVALUE;
140	root	1.2	# define num_is_fixnum(n) (n).is_fixnum
141			# define num_set_fixnum(n,f) (n).is_fixnum = (f)
142			# define num_ivalue(n) (n).value.ivalue
143			# define num_rvalue(n) (n).value.rvalue
144			# define num_set_ivalue(n,i) (n).value.ivalue = (i)
145			# define num_set_rvalue(n,r) (n).value.rvalue = (r)
146			#else
147	root	1.1	typedef long RVALUE;
148	root	1.2	# define num_is_fixnum(n) 1
149			# define num_set_fixnum(n,f) 0
150			# define num_ivalue(n) (n).value.ivalue
151			# define num_rvalue(n) (n).value.ivalue
152			# define num_set_ivalue(n,i) (n).value.ivalue = (i)
153			# define num_set_rvalue(n,r) (n).value.ivalue = (r)
154			#endif
155	root	1.1
156			/* num, for generic arithmetic */
157			typedef struct num
158			{
159			union
160			{
161			long ivalue;
162	root	1.2	#if USE_FLOAT
163	root	1.1	RVALUE rvalue;
164	root	1.2	#endif
165	root	1.1	} value;
166	root	1.2	#if USE_FLOAT
167	root	1.1	char is_fixnum;
168	root	1.2	#endif
169	root	1.1	} num;
170
171			/* Used for documentation purposes, to signal functions in 'interface' */
172	root	1.2	#define INTERFACE static
173	root	1.1
174			SCHEME_EXPORT scheme *scheme_init_new ();
175			SCHEME_EXPORT int scheme_init (SCHEME_P);
176			SCHEME_EXPORT void scheme_deinit (SCHEME_P);
177			void scheme_set_input_port_file (SCHEME_P_ int fin);
178			void scheme_set_input_port_string (SCHEME_P_ char start, char past_the_end);
179			SCHEME_EXPORT void scheme_set_output_port_file (SCHEME_P_ int fin);
180			void scheme_set_output_port_string (SCHEME_P_ char start, char past_the_end);
181			SCHEME_EXPORT void scheme_load_file (SCHEME_P_ int fin);
182			SCHEME_EXPORT void scheme_load_named_file (SCHEME_P_ int fin, const char *filename);
183			SCHEME_EXPORT void scheme_load_string (SCHEME_P_ const char *cmd);
184			SCHEME_EXPORT pointer scheme_apply0 (SCHEME_P_ const char *procname);
185			SCHEME_EXPORT pointer scheme_call (SCHEME_P_ pointer func, pointer args);
186			SCHEME_EXPORT pointer scheme_eval (SCHEME_P_ pointer obj);
187			void scheme_set_external_data (SCHEME_P_ void *p);
188			SCHEME_EXPORT void scheme_define (SCHEME_P_ pointer env, pointer symbol, pointer value);
189
190			typedef pointer (*foreign_func) (SCHEME_P_ pointer);
191
192			pointer xcons (SCHEME_P_ pointer a, pointer b, int immutable);
193			INTERFACE pointer mk_integer (SCHEME_P_ long num);
194			INTERFACE pointer mk_real (SCHEME_P_ RVALUE num);
195			INTERFACE pointer mk_symbol (SCHEME_P_ const char *name);
196			INTERFACE pointer gensym (SCHEME_P);
197			INTERFACE pointer mk_string (SCHEME_P_ const char *str);
198	root	1.3	INTERFACE pointer mk_counted_string (SCHEME_P_ const char *str, uint32_t len);
199			INTERFACE pointer mk_empty_string (SCHEME_P_ uint32_t len, char fill);
200	root	1.1	INTERFACE pointer mk_character (SCHEME_P_ int c);
201			INTERFACE pointer mk_foreign_func (SCHEME_P_ foreign_func f);
202			INTERFACE void putstr (SCHEME_P_ const char *s);
203			INTERFACE int list_length (SCHEME_P_ pointer a);
204			INTERFACE int eqv (pointer a, pointer b);
205
206	root	1.2	#if !STANDALONE
207	root	1.1	typedef struct scheme_registerable
208			{
209			foreign_func f;
210			const char *name;
211			}
212			scheme_registerable;
213
214			void scheme_register_foreign_func_list (SCHEME_P_ scheme_registerable * list, int n);
215
216	root	1.2	#endif /* !STANDALONE */
217	root	1.1
218	root	1.2	#ifdef __cplusplus
219	root	1.1	}
220	root	1.2	#endif
221	root	1.1
222			#endif
223
224			/*
225			Local variables:
226			c-file-style: "k&r"
227			End:
228			*/