From aeddacb8d88f41ba7bdf37d39de17d8cf3b6a258 Mon Sep 17 00:00:00 2001 From: Henrique Alves Date: Mon, 29 Apr 2024 10:23:52 +0300 Subject: Creating small evaluation prompt --- sources/s7/s7.h | 1245 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 1245 insertions(+) create mode 100644 sources/s7/s7.h (limited to 'sources/s7/s7.h') diff --git a/sources/s7/s7.h b/sources/s7/s7.h new file mode 100644 index 0000000..97008da --- /dev/null +++ b/sources/s7/s7.h @@ -0,0 +1,1245 @@ +#ifndef S7_H +#define S7_H + +#define S7_VERSION "10.8" +#define S7_DATE "24-Apr-2024" +#define S7_MAJOR_VERSION 10 +#define S7_MINOR_VERSION 8 + +#include /* for int64_t */ + +typedef int64_t s7_int; +typedef double s7_double; + +#ifndef __cplusplus +#ifndef _MSC_VER + #include +#else +#ifndef true + #define bool unsigned char + #define true 1 + #define false 0 +#endif +#endif +#endif + +#if WITH_GMP + /* in g++ these includes need to be outside the extern "C" business */ + #include + #include + #include +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +typedef struct s7_scheme s7_scheme; +typedef struct s7_cell *s7_pointer; + +s7_scheme *s7_init(void); + /* s7_scheme is our interpreter + * s7_pointer is a Scheme object of any (Scheme) type + * s7_init creates the interpreter. + */ +void s7_free(s7_scheme *sc); + +typedef s7_pointer (*s7_function)(s7_scheme *sc, s7_pointer args); /* that is, obj = func(s7, args) -- args is a list of arguments */ +typedef s7_pointer (*s7_pfunc)(s7_scheme *sc); + +s7_pointer s7_f(s7_scheme *sc); /* #f */ +s7_pointer s7_t(s7_scheme *sc); /* #t */ +s7_pointer s7_nil(s7_scheme *sc); /* () */ +s7_pointer s7_undefined(s7_scheme *sc); /* # */ +s7_pointer s7_unspecified(s7_scheme *sc); /* # */ +bool s7_is_unspecified(s7_scheme *sc, s7_pointer val); /* returns true if val is # */ +s7_pointer s7_eof_object(s7_scheme *sc); /* # */ +bool s7_is_null(s7_scheme *sc, s7_pointer p); /* null? */ + + /* these are the Scheme constants; they do not change in value during a run, + * so they can be safely assigned to C global variables if desired. + */ + +bool s7_is_valid(s7_scheme *sc, s7_pointer arg); /* does 'arg' look like an s7 object? */ +bool s7_is_c_pointer(s7_pointer arg); /* (c-pointer? arg) */ +bool s7_is_c_pointer_of_type(s7_pointer arg, s7_pointer type); +void *s7_c_pointer(s7_pointer p); +void *s7_c_pointer_with_type(s7_scheme *sc, s7_pointer p, s7_pointer expected_type, const char *caller, s7_int argnum); +s7_pointer s7_c_pointer_type(s7_pointer p); +s7_pointer s7_make_c_pointer(s7_scheme *sc, void *ptr); /* these are for passing uninterpreted C pointers through Scheme */ +s7_pointer s7_make_c_pointer_with_type(s7_scheme *sc, void *ptr, s7_pointer type, s7_pointer info); +s7_pointer s7_make_c_pointer_wrapper_with_type(s7_scheme *sc, void *ptr, s7_pointer type, s7_pointer info); + +s7_pointer s7_eval_c_string(s7_scheme *sc, const char *str); /* (eval-string str) */ +s7_pointer s7_eval_c_string_with_environment(s7_scheme *sc, const char *str, s7_pointer e); +s7_pointer s7_object_to_string(s7_scheme *sc, s7_pointer arg, bool use_write); + /* (object->string obj) */ +char *s7_object_to_c_string(s7_scheme *sc, s7_pointer obj); /* same as object->string but returns a C char* directly */ + /* the returned value should be freed by the caller */ + +s7_pointer s7_load(s7_scheme *sc, const char *file); /* (load file) */ +s7_pointer s7_load_with_environment(s7_scheme *sc, const char *filename, s7_pointer e); +s7_pointer s7_load_c_string(s7_scheme *sc, const char *content, s7_int bytes); +s7_pointer s7_load_c_string_with_environment(s7_scheme *sc, const char *content, s7_int bytes, s7_pointer e); +s7_pointer s7_load_path(s7_scheme *sc); /* *load-path* */ +s7_pointer s7_add_to_load_path(s7_scheme *sc, const char *dir); /* (set! *load-path* (cons dir *load-path*)) */ +s7_pointer s7_autoload(s7_scheme *sc, s7_pointer symbol, s7_pointer file_or_function); /* (autoload symbol file-or-function) */ +void s7_autoload_set_names(s7_scheme *sc, const char **names, s7_int size); + + /* the load path is a list of directories to search if load can't find the file passed as its argument. + * + * s7_load and s7_load_with_environment can load shared object files as well as scheme code. + * The scheme (load "somelib.so" (inlet 'init_func 'somelib_init)) is equivalent to + * s7_load_with_environment(s7, "somelib.so", s7_inlet(s7, s7_list(s7, 2, s7_make_symbol(s7, "init_func"), s7_make_symbol(s7, "somelib_init")))) + * s7_load_with_environment returns NULL if it can't load the file. + */ +void s7_quit(s7_scheme *sc); + /* this tries to break out of the current evaluation, leaving everything else intact */ + +void (*s7_begin_hook(s7_scheme *sc))(s7_scheme *sc, bool *val); +void s7_set_begin_hook(s7_scheme *sc, void (*hook)(s7_scheme *sc, bool *val)); + /* call "hook" at the start of any block; use NULL to cancel. + * s7_begin_hook returns the current begin_hook function or NULL. + */ + +s7_pointer s7_eval(s7_scheme *sc, s7_pointer code, s7_pointer e); /* (eval code e) -- e is the optional environment */ +s7_pointer s7_eval_with_location(s7_scheme *sc, s7_pointer code, s7_pointer e, const char *caller, const char *file, s7_int line); +void s7_provide(s7_scheme *sc, const char *feature); /* add feature (as a symbol) to the *features* list */ +bool s7_is_provided(s7_scheme *sc, const char *feature); /* (provided? feature) */ +void s7_repl(s7_scheme *sc); + +s7_pointer s7_error(s7_scheme *sc, s7_pointer type, s7_pointer info); +s7_pointer s7_wrong_type_arg_error(s7_scheme *sc, const char *caller, s7_int arg_n, s7_pointer arg, const char *descr); +s7_pointer s7_wrong_type_error(s7_scheme *sc, s7_pointer caller, s7_int arg_n, s7_pointer arg, s7_pointer descr); + /* set arg_n to 0 to indicate that caller takes only one argument (so the argument number need not be reported */ +s7_pointer s7_out_of_range_error(s7_scheme *sc, const char *caller, s7_int arg_n, s7_pointer arg, const char *descr); +s7_pointer s7_wrong_number_of_args_error(s7_scheme *sc, const char *caller, s7_pointer args); + + /* these are equivalent to (error ...) in Scheme + * the first argument to s7_error is a symbol that can be caught (via (catch tag ...)) + * the rest of the arguments are passed to the error handler (if in catch) + * or printed out (in the default case). If the first element of the list + * of args ("info") is a string, the default error handler treats it as + * a format control string, and passes it to format with the rest of the + * info list as the format function arguments. + * + * s7_wrong_type_arg_error is equivalent to s7_error with a type of 'wrong-type-arg + * and similarly s7_out_of_range_error with type 'out-of-range. + * + * catch in Scheme is taken from Guile: + * + * (catch tag thunk handler) + * + * evaluates 'thunk'. If an error occurs, and the type matches 'tag' (or if 'tag' is #t), + * the handler is called, passing it the arguments (including the type) passed to the + * error function. If no handler is found, the default error handler is called, + * normally printing the error arguments to current-error-port. + */ + +s7_pointer s7_stacktrace(s7_scheme *sc); +s7_pointer s7_history(s7_scheme *sc); /* the current (circular backwards) history buffer */ +s7_pointer s7_add_to_history(s7_scheme *sc, s7_pointer entry); /* add entry to the history buffer */ +bool s7_history_enabled(s7_scheme *sc); +bool s7_set_history_enabled(s7_scheme *sc, bool enabled); + +s7_pointer s7_gc_on(s7_scheme *sc, bool on); /* (gc on) */ + +s7_int s7_gc_protect(s7_scheme *sc, s7_pointer x); +void s7_gc_unprotect_at(s7_scheme *sc, s7_int loc); +s7_pointer s7_gc_protected_at(s7_scheme *sc, s7_int loc); +s7_pointer s7_gc_protect_via_stack(s7_scheme *sc, s7_pointer x); +s7_pointer s7_gc_protect_2_via_stack(s7_scheme *sc, s7_pointer x, s7_pointer y); +s7_pointer s7_gc_unprotect_via_stack(s7_scheme *sc, s7_pointer x); +s7_pointer s7_gc_protect_via_location(s7_scheme *sc, s7_pointer x, s7_int loc); +s7_pointer s7_gc_unprotect_via_location(s7_scheme *sc, s7_int loc); + + /* any s7_pointer object held in C (as a local variable for example) needs to be + * protected from garbage collection if there is any chance the GC may run without + * an existing Scheme-level reference to that object. s7_gc_protect places the + * object in a vector that the GC always checks, returning the object's location + * in that table. s7_gc_unprotect_at unprotects the object (removes it from the + * vector) using the location passed to it. s7_gc_protected_at returns the object + * at the given location. + * + * You can turn the GC on and off via s7_gc_on. + * + * There is a built-in lag between the creation of a new object and its first possible GC + * (the lag time is set indirectly by GC_TEMPS_SIZE in s7.c), so you don't need to worry about + * very short term temps such as the arguments to s7_cons in: + * + * s7_cons(s7, s7_make_real(s7, 3.14), + * s7_cons(s7, s7_make_integer(s7, 123), s7_nil(s7))); + */ + +bool s7_is_eq(s7_pointer a, s7_pointer b); /* (eq? a b) */ +bool s7_is_eqv(s7_scheme *sc, s7_pointer a, s7_pointer b); /* (eqv? a b) */ +bool s7_is_equal(s7_scheme *sc, s7_pointer a, s7_pointer b); /* (equal? a b) */ +bool s7_is_equivalent(s7_scheme *sc, s7_pointer x, s7_pointer y); /* (equivalent? x y) */ + +bool s7_is_boolean(s7_pointer x); /* (boolean? x) */ +bool s7_boolean(s7_scheme *sc, s7_pointer x); /* Scheme boolean -> C bool */ +s7_pointer s7_make_boolean(s7_scheme *sc, bool x); /* C bool -> Scheme boolean */ + + /* for each Scheme type (boolean, integer, string, etc), there are three + * functions: s7_(...), s7_make_(...), and s7_is_(...): + * + * s7_boolean(s7, obj) returns the C bool corresponding to the value of 'obj' (#f -> false) + * s7_make_boolean(s7, false|true) returns the s7 boolean corresponding to the C bool argument (false -> #f) + * s7_is_boolean(s7, obj) returns true if 'obj' has a boolean value (#f or #t). + */ + + +bool s7_is_pair(s7_pointer p); /* (pair? p) */ +s7_pointer s7_cons(s7_scheme *sc, s7_pointer a, s7_pointer b); /* (cons a b) */ + +s7_pointer s7_car(s7_pointer p); /* (car p) */ +s7_pointer s7_cdr(s7_pointer p); /* (cdr p) */ + +s7_pointer s7_set_car(s7_pointer p, s7_pointer q); /* (set-car! p q) */ +s7_pointer s7_set_cdr(s7_pointer p, s7_pointer q); /* (set-cdr! p q) */ + +s7_pointer s7_cadr(s7_pointer p); /* (cadr p) */ +s7_pointer s7_cddr(s7_pointer p); /* (cddr p) */ +s7_pointer s7_cdar(s7_pointer p); /* (cdar p) */ +s7_pointer s7_caar(s7_pointer p); /* (caar p) */ + +s7_pointer s7_caadr(s7_pointer p); /* etc */ +s7_pointer s7_caddr(s7_pointer p); +s7_pointer s7_cadar(s7_pointer p); +s7_pointer s7_caaar(s7_pointer p); +s7_pointer s7_cdadr(s7_pointer p); +s7_pointer s7_cdddr(s7_pointer p); +s7_pointer s7_cddar(s7_pointer p); +s7_pointer s7_cdaar(s7_pointer p); + +s7_pointer s7_caaadr(s7_pointer p); +s7_pointer s7_caaddr(s7_pointer p); +s7_pointer s7_caadar(s7_pointer p); +s7_pointer s7_caaaar(s7_pointer p); +s7_pointer s7_cadadr(s7_pointer p); +s7_pointer s7_cadddr(s7_pointer p); +s7_pointer s7_caddar(s7_pointer p); +s7_pointer s7_cadaar(s7_pointer p); +s7_pointer s7_cdaadr(s7_pointer p); +s7_pointer s7_cdaddr(s7_pointer p); +s7_pointer s7_cdadar(s7_pointer p); +s7_pointer s7_cdaaar(s7_pointer p); +s7_pointer s7_cddadr(s7_pointer p); +s7_pointer s7_cddddr(s7_pointer p); +s7_pointer s7_cdddar(s7_pointer p); +s7_pointer s7_cddaar(s7_pointer p); + +bool s7_is_list(s7_scheme *sc, s7_pointer p); /* (list? p) -> (or (pair? p) (null? p)) */ +bool s7_is_proper_list(s7_scheme *sc, s7_pointer p); /* (proper-list? p) */ +s7_int s7_list_length(s7_scheme *sc, s7_pointer a); /* (length a) */ +s7_pointer s7_make_list(s7_scheme *sc, s7_int len, s7_pointer init); /* (make-list len init) */ +s7_pointer s7_list(s7_scheme *sc, s7_int num_values, ...); /* (list ...) */ +s7_pointer s7_list_nl(s7_scheme *sc, s7_int num_values, ...); /* (list ...) arglist should be NULL terminated (more error checks than s7_list) */ +s7_pointer s7_array_to_list(s7_scheme *sc, s7_int num_values, s7_pointer *array); /* array contents -> list */ +void s7_list_to_array(s7_scheme *sc, s7_pointer list, s7_pointer *array, int32_t len); /* list -> array (intended for old code) */ +s7_pointer s7_reverse(s7_scheme *sc, s7_pointer a); /* (reverse a) */ +s7_pointer s7_append(s7_scheme *sc, s7_pointer a, s7_pointer b); /* (append a b) */ +s7_pointer s7_list_ref(s7_scheme *sc, s7_pointer lst, s7_int num); /* (list-ref lst num) */ +s7_pointer s7_list_set(s7_scheme *sc, s7_pointer lst, s7_int num, s7_pointer val); /* (list-set! lst num val) */ +s7_pointer s7_assoc(s7_scheme *sc, s7_pointer obj, s7_pointer lst); /* (assoc obj lst) */ +s7_pointer s7_assq(s7_scheme *sc, s7_pointer obj, s7_pointer x); /* (assq obj lst) */ +s7_pointer s7_member(s7_scheme *sc, s7_pointer obj, s7_pointer lst); /* (member obj lst) */ +s7_pointer s7_memq(s7_scheme *sc, s7_pointer obj, s7_pointer x); /* (memq obj lst) */ +bool s7_tree_memq(s7_scheme *sc, s7_pointer sym, s7_pointer tree); /* (tree-memq sym tree) */ + + +bool s7_is_string(s7_pointer p); /* (string? p) */ +const char *s7_string(s7_pointer p); /* Scheme string -> C string (do not free the string) */ +s7_pointer s7_make_string(s7_scheme *sc, const char *str); /* C string -> Scheme string (str is copied) */ +s7_pointer s7_make_string_with_length(s7_scheme *sc, const char *str, s7_int len); /* same as s7_make_string, but provides strlen */ +s7_pointer s7_make_string_wrapper(s7_scheme *sc, const char *str); +s7_pointer s7_make_string_wrapper_with_length(s7_scheme *sc, const char *str, s7_int len); +s7_pointer s7_make_permanent_string(s7_scheme *sc, const char *str); /* make a string that will never be GC'd */ +s7_pointer s7_make_semipermanent_string(s7_scheme *sc, const char *str); /* for (s7) string permanent within one s7 instance (freed upon s7_free) */ +s7_int s7_string_length(s7_pointer str); /* (string-length str) */ + + +bool s7_is_character(s7_pointer p); /* (character? p) */ +uint8_t s7_character(s7_pointer p); /* Scheme character -> unsigned C char */ +s7_pointer s7_make_character(s7_scheme *sc, uint8_t c); /* unsigned C char -> Scheme character */ + + +bool s7_is_number(s7_pointer p); /* (number? p) */ +bool s7_is_integer(s7_pointer p); /* (integer? p) */ +s7_int s7_integer(s7_pointer p); /* Scheme integer -> C integer (s7_int) */ +s7_pointer s7_make_integer(s7_scheme *sc, s7_int num); /* C s7_int -> Scheme integer */ + +bool s7_is_real(s7_pointer p); /* (real? p) */ +s7_double s7_real(s7_pointer p); /* Scheme real -> C double */ +s7_pointer s7_make_real(s7_scheme *sc, s7_double num); /* C double -> Scheme real */ +s7_pointer s7_make_mutable_real(s7_scheme *sc, s7_double n); +s7_double s7_number_to_real(s7_scheme *sc, s7_pointer x); /* x can be any kind of number */ +s7_double s7_number_to_real_with_caller(s7_scheme *sc, s7_pointer x, const char *caller); +s7_double s7_number_to_real_with_location(s7_scheme *sc, s7_pointer x, s7_pointer caller); +s7_int s7_number_to_integer(s7_scheme *sc, s7_pointer x); +s7_int s7_number_to_integer_with_caller(s7_scheme *sc, s7_pointer x, const char *caller); + +bool s7_is_rational(s7_pointer arg); /* (rational? arg) -- integer or ratio */ +bool s7_is_ratio(s7_pointer arg); /* true if arg is a ratio, not an integer */ +s7_pointer s7_make_ratio(s7_scheme *sc, s7_int a, s7_int b); /* returns the Scheme object a/b */ +s7_pointer s7_rationalize(s7_scheme *sc, s7_double x, s7_double error); /* (rationalize x error) */ +s7_int s7_numerator(s7_pointer x); /* (numerator x) */ +s7_int s7_denominator(s7_pointer x); /* (denominator x) */ +s7_double s7_random(s7_scheme *sc, s7_pointer state); /* (random x) */ +s7_pointer s7_random_state(s7_scheme *sc, s7_pointer seed); /* (random-state seed) */ +s7_pointer s7_random_state_to_list(s7_scheme *sc, s7_pointer args); /* (random-state->list r) */ +void s7_set_default_random_state(s7_scheme *sc, s7_int seed, s7_int carry); +bool s7_is_random_state(s7_pointer p); /* (random-state? p) */ + +bool s7_is_complex(s7_pointer arg); /* (complex? arg) */ +s7_pointer s7_make_complex(s7_scheme *sc, s7_double a, s7_double b); /* returns the Scheme object a+bi */ +s7_double s7_real_part(s7_pointer z); /* (real-part z) */ +s7_double s7_imag_part(s7_pointer z); /* (imag-part z) */ +char *s7_number_to_string(s7_scheme *sc, s7_pointer obj, s7_int radix); /* (number->string obj radix) */ + +bool s7_is_vector(s7_pointer p); /* (vector? p) */ +s7_int s7_vector_length(s7_pointer vec); /* (vector-length vec) */ +s7_int s7_vector_rank(s7_pointer vect); /* number of dimensions in vect */ +s7_int s7_vector_dimension(s7_pointer vec, s7_int dim); +s7_pointer *s7_vector_elements(s7_pointer vec); /* a pointer to the array of s7_pointers */ +s7_int *s7_int_vector_elements(s7_pointer vec); +uint8_t *s7_byte_vector_elements(s7_pointer vec); +s7_double *s7_float_vector_elements(s7_pointer vec); +bool s7_is_float_vector(s7_pointer p); /* (float-vector? p) */ +bool s7_is_int_vector(s7_pointer p); /* (int-vector? p) */ +bool s7_is_byte_vector(s7_pointer p); /* (byte-vector? p) */ + +s7_pointer s7_vector_ref(s7_scheme *sc, s7_pointer vec, s7_int index); /* (vector-ref vec index) */ +s7_pointer s7_vector_set(s7_scheme *sc, s7_pointer vec, s7_int index, s7_pointer a); /* (vector-set! vec index a) */ +s7_pointer s7_vector_ref_n(s7_scheme *sc, s7_pointer vector, s7_int indices, ...); /* multidimensional vector-ref */ +s7_pointer s7_vector_set_n(s7_scheme *sc, s7_pointer vector, s7_pointer value, s7_int indices, ...); /* multidimensional vector-set! */ +s7_int s7_vector_dimensions(s7_pointer vec, s7_int *dims, s7_int dims_size); /* vector dimensions */ +s7_int s7_vector_offsets(s7_pointer vec, s7_int *offs, s7_int offs_size); + +s7_int s7_int_vector_ref(s7_pointer vec, s7_int index); +s7_int s7_int_vector_set(s7_pointer vec, s7_int index, s7_int value); +uint8_t s7_byte_vector_ref(s7_pointer vec, s7_int index); +uint8_t s7_byte_vector_set(s7_pointer vec, s7_int index, uint8_t value); +s7_double s7_float_vector_ref(s7_pointer vec, s7_int index); +s7_double s7_float_vector_set(s7_pointer vec, s7_int index, s7_double value); + +s7_pointer s7_make_vector(s7_scheme *sc, s7_int len); /* (make-vector len) */ +s7_pointer s7_make_int_vector(s7_scheme *sc, s7_int len, s7_int dims, s7_int *dim_info); +s7_pointer s7_make_byte_vector(s7_scheme *sc, s7_int len, s7_int dims, s7_int *dim_info); +s7_pointer s7_make_float_vector(s7_scheme *sc, s7_int len, s7_int dims, s7_int *dim_info); +s7_pointer s7_make_normal_vector(s7_scheme *sc, s7_int len, s7_int dims, s7_int *dim_info); /* make-vector but possibly multidimensional */ +s7_pointer s7_make_float_vector_wrapper(s7_scheme *sc, s7_int len, s7_double *data, s7_int dims, s7_int *dim_info, bool free_data); +s7_pointer s7_make_and_fill_vector(s7_scheme *sc, s7_int len, s7_pointer fill); /* (make-vector len fill) */ + +void s7_vector_fill(s7_scheme *sc, s7_pointer vec, s7_pointer obj); /* (vector-fill! vec obj) */ +s7_pointer s7_vector_copy(s7_scheme *sc, s7_pointer old_vect); +s7_pointer s7_vector_to_list(s7_scheme *sc, s7_pointer vect); /* (vector->list vec) */ + /* + * (vect i) is the same as (vector-ref vect i) + * (set! (vect i) x) is the same as (vector-set! vect i x) + * (vect i j k) accesses the 3-dimensional vect + * (set! (vect i j k) x) sets that element (vector-ref and vector-set! can also be used) + * (make-vector (list 2 3 4)) returns a 3-dimensional vector with the given dimension sizes + * (make-vector '(2 3) 1.0) returns a 2-dim vector with all elements set to 1.0 + */ + +bool s7_is_hash_table(s7_pointer p); /* (hash-table? p) */ +s7_pointer s7_make_hash_table(s7_scheme *sc, s7_int size); /* (make-hash-table size) */ +s7_pointer s7_hash_table_ref(s7_scheme *sc, s7_pointer table, s7_pointer key); + /* (hash-table-ref table key) */ +s7_pointer s7_hash_table_set(s7_scheme *sc, s7_pointer table, s7_pointer key, s7_pointer value); + /* (hash-table-set! table key value) */ +s7_int s7_hash_code(s7_scheme *sc, s7_pointer obj, s7_pointer eqfunc); /* (hash-code obj [eqfunc]) */ + +s7_pointer s7_hook_functions(s7_scheme *sc, s7_pointer hook); /* (hook-functions hook) */ +s7_pointer s7_hook_set_functions(s7_scheme *sc, s7_pointer hook, s7_pointer functions); /* (set! (hook-functions hook) ...) */ + + +bool s7_is_input_port(s7_scheme *sc, s7_pointer p); /* (input-port? p) */ +bool s7_is_output_port(s7_scheme *sc, s7_pointer p); /* (output-port? p) */ +const char *s7_port_filename(s7_scheme *sc, s7_pointer x); /* (port-filename p) */ +s7_int s7_port_line_number(s7_scheme *sc, s7_pointer p); /* (port-line-number p) */ + +s7_pointer s7_current_input_port(s7_scheme *sc); /* (current-input-port) */ +s7_pointer s7_set_current_input_port(s7_scheme *sc, s7_pointer p); /* (set-current-input-port) */ +s7_pointer s7_current_output_port(s7_scheme *sc); /* (current-output-port) */ +s7_pointer s7_set_current_output_port(s7_scheme *sc, s7_pointer p); /* (set-current-output-port) */ +s7_pointer s7_current_error_port(s7_scheme *sc); /* (current-error-port) */ +s7_pointer s7_set_current_error_port(s7_scheme *sc, s7_pointer port); /* (set-current-error-port port) */ +void s7_close_input_port(s7_scheme *sc, s7_pointer p); /* (close-input-port p) */ +void s7_close_output_port(s7_scheme *sc, s7_pointer p); /* (close-output-port p) */ +s7_pointer s7_open_input_file(s7_scheme *sc, const char *name, const char *mode); + /* (open-input-file name mode) */ +s7_pointer s7_open_output_file(s7_scheme *sc, const char *name, const char *mode); + /* (open-output-file name mode) */ + /* mode here is an optional C style flag, "a" for "alter", etc ("r" is the input default, "w" is the output default) */ +s7_pointer s7_open_input_string(s7_scheme *sc, const char *input_string); + /* (open-input-string str) */ +s7_pointer s7_open_output_string(s7_scheme *sc); /* (open-output-string) */ +const char *s7_get_output_string(s7_scheme *sc, s7_pointer out_port); /* (get-output-string port) -- current contents of output string */ + /* don't free the string */ +s7_pointer s7_output_string(s7_scheme *sc, s7_pointer p); /* same but returns an s7 string */ +bool s7_flush_output_port(s7_scheme *sc, s7_pointer p); /* (flush-output-port port) */ + +typedef enum {S7_READ, S7_READ_CHAR, S7_READ_LINE, S7_PEEK_CHAR, S7_IS_CHAR_READY, S7_NUM_READ_CHOICES} s7_read_t; +s7_pointer s7_open_output_function(s7_scheme *sc, void (*function)(s7_scheme *sc, uint8_t c, s7_pointer port)); +s7_pointer s7_open_input_function(s7_scheme *sc, s7_pointer (*function)(s7_scheme *sc, s7_read_t read_choice, s7_pointer port)); + +s7_pointer s7_read_char(s7_scheme *sc, s7_pointer port); /* (read-char port) */ +s7_pointer s7_peek_char(s7_scheme *sc, s7_pointer port); /* (peek-char port) */ +s7_pointer s7_read(s7_scheme *sc, s7_pointer port); /* (read port) */ +void s7_newline(s7_scheme *sc, s7_pointer port); /* (newline port) */ +s7_pointer s7_write_char(s7_scheme *sc, s7_pointer c, s7_pointer port); /* (write-char c port) */ +s7_pointer s7_write(s7_scheme *sc, s7_pointer obj, s7_pointer port); /* (write obj port) */ +s7_pointer s7_display(s7_scheme *sc, s7_pointer obj, s7_pointer port); /* (display obj port) */ +const char *s7_format(s7_scheme *sc, s7_pointer args); /* (format ... */ + + +bool s7_is_syntax(s7_pointer p); /* (syntax? p) */ +bool s7_is_symbol(s7_pointer p); /* (symbol? p) */ +const char *s7_symbol_name(s7_pointer p); /* (symbol->string p) -- don't free the string */ +s7_pointer s7_make_symbol(s7_scheme *sc, const char *name); /* (string->symbol name) */ +s7_pointer s7_gensym(s7_scheme *sc, const char *prefix); /* (gensym prefix) */ + +bool s7_is_keyword(s7_pointer obj); /* (keyword? obj) */ +s7_pointer s7_make_keyword(s7_scheme *sc, const char *key); /* (string->keyword key) */ +s7_pointer s7_keyword_to_symbol(s7_scheme *sc, s7_pointer key); /* (keyword->symbol key) */ + +s7_pointer s7_rootlet(s7_scheme *sc); /* (rootlet) */ +s7_pointer s7_shadow_rootlet(s7_scheme *sc); +s7_pointer s7_set_shadow_rootlet(s7_scheme *sc, s7_pointer let); +s7_pointer s7_curlet(s7_scheme *sc); /* (curlet) */ +s7_pointer s7_set_curlet(s7_scheme *sc, s7_pointer e); /* returns previous curlet */ +s7_pointer s7_outlet(s7_scheme *sc, s7_pointer e); /* (outlet e) */ +s7_pointer s7_sublet(s7_scheme *sc, s7_pointer env, s7_pointer bindings); /* (sublet e ...) */ +s7_pointer s7_inlet(s7_scheme *sc, s7_pointer bindings); /* (inlet ...) */ +s7_pointer s7_varlet(s7_scheme *sc, s7_pointer env, s7_pointer symbol, s7_pointer value); /* (varlet env symbol value) */ +s7_pointer s7_let_to_list(s7_scheme *sc, s7_pointer env); /* (let->list env) */ +bool s7_is_let(s7_pointer e); /* )let? e) */ +s7_pointer s7_let_ref(s7_scheme *sc, s7_pointer env, s7_pointer sym); /* (let-ref e sym) */ +s7_pointer s7_let_set(s7_scheme *sc, s7_pointer env, s7_pointer sym, s7_pointer val); /* (let-set! e sym val) */ +s7_pointer s7_openlet(s7_scheme *sc, s7_pointer e); /* (openlet e) */ +bool s7_is_openlet(s7_pointer e); /* (openlet? e) */ +s7_pointer s7_method(s7_scheme *sc, s7_pointer obj, s7_pointer method); + +/* *s7* */ +/* these renamed because "s7_let_field" seems the same as "s7_let", but here we're referring to *s7*, not any let */ +s7_pointer s7_let_field_ref(s7_scheme *sc, s7_pointer sym); /* (*s7* sym) */ +s7_pointer s7_let_field_set(s7_scheme *sc, s7_pointer sym, s7_pointer new_value); /* (set! (*s7* sym) new_value) */ +/* new names */ +s7_pointer s7_starlet_ref(s7_scheme *sc, s7_pointer sym); /* (*s7* sym) */ +s7_pointer s7_starlet_set(s7_scheme *sc, s7_pointer sym, s7_pointer new_value); /* (set! (*s7* sym) new_value) */ + +s7_pointer s7_name_to_value(s7_scheme *sc, const char *name); /* name's value in the current environment (after turning name into a symbol) */ +s7_pointer s7_symbol_table_find_name(s7_scheme *sc, const char *name); +s7_pointer s7_symbol_value(s7_scheme *sc, s7_pointer sym); +s7_pointer s7_symbol_set_value(s7_scheme *sc, s7_pointer sym, s7_pointer val); +s7_pointer s7_symbol_local_value(s7_scheme *sc, s7_pointer sym, s7_pointer local_env); +bool s7_for_each_symbol_name(s7_scheme *sc, bool (*symbol_func)(const char *symbol_name, void *data), void *data); +bool s7_for_each_symbol(s7_scheme *sc, bool (*symbol_func)(const char *symbol_name, void *data), void *data); + + /* these access the current environment and symbol table, providing + * a symbol's current binding (s7_name_to_value takes the symbol name as a char*, + * s7_symbol_value takes the symbol itself, s7_symbol_set_value changes the + * current binding, and s7_symbol_local_value uses the environment passed + * as its third argument). + * + * To iterate over the complete symbol table, use s7_for_each_symbol_name, + * and s7_for_each_symbol. Both call 'symbol_func' on each symbol, passing it + * the symbol or symbol name, and the uninterpreted 'data' pointer. + * the current binding. The for-each loop stops if the symbol_func returns true, + * or at the end of the table. + */ + +s7_pointer s7_dynamic_wind(s7_scheme *sc, s7_pointer init, s7_pointer body, s7_pointer finish); + +bool s7_is_immutable(s7_pointer p); +s7_pointer s7_immutable(s7_pointer p); + +void s7_define(s7_scheme *sc, s7_pointer env, s7_pointer symbol, s7_pointer value); +bool s7_is_defined(s7_scheme *sc, const char *name); +s7_pointer s7_define_variable(s7_scheme *sc, const char *name, s7_pointer value); +s7_pointer s7_define_variable_with_documentation(s7_scheme *sc, const char *name, s7_pointer value, const char *help); +s7_pointer s7_define_constant(s7_scheme *sc, const char *name, s7_pointer value); +s7_pointer s7_define_constant_with_documentation(s7_scheme *sc, const char *name, s7_pointer value, const char *help); +s7_pointer s7_define_constant_with_environment(s7_scheme *sc, s7_pointer envir, const char *name, s7_pointer value); + /* These functions add a symbol and its binding to either the top-level environment + * or the 'env' passed as the second argument to s7_define. Except for s7_define, they return + * the name as a symbol. + * + * s7_define_variable(sc, "*features*", s7_nil(sc)); + * + * in s7.c is equivalent to the top level form + * + * (define *features* ()) + * + * s7_define_variable is simply s7_define with string->symbol and the global environment. + * s7_define_constant is s7_define but makes its "definee" immutable. + * s7_define is equivalent to define in Scheme, except that it does not return the value. + */ + +bool s7_is_function(s7_pointer p); +bool s7_is_procedure(s7_pointer x); /* (procedure? x) */ +bool s7_is_macro(s7_scheme *sc, s7_pointer x); /* (macro? x) */ +s7_pointer s7_closure_body(s7_scheme *sc, s7_pointer p); +s7_pointer s7_closure_let(s7_scheme *sc, s7_pointer p); +s7_pointer s7_closure_args(s7_scheme *sc, s7_pointer p); +s7_pointer s7_funclet(s7_scheme *sc, s7_pointer p); /* (funclet x) */ +bool s7_is_aritable(s7_scheme *sc, s7_pointer x, s7_int args); /* (aritable? x args) */ +s7_pointer s7_arity(s7_scheme *sc, s7_pointer x); /* (arity x) */ +const char *s7_help(s7_scheme *sc, s7_pointer obj); /* (help obj) */ +s7_pointer s7_make_continuation(s7_scheme *sc); /* call/cc... (see example below) */ + +const char *s7_documentation(s7_scheme *sc, s7_pointer p); /* (documentation x) if any (don't free the string) */ +const char *s7_set_documentation(s7_scheme *sc, s7_pointer p, const char *new_doc); +s7_pointer s7_setter(s7_scheme *sc, s7_pointer obj); /* (setter obj) */ +s7_pointer s7_set_setter(s7_scheme *sc, s7_pointer p, s7_pointer setter); /* (set! (setter p) setter) */ +s7_pointer s7_signature(s7_scheme *sc, s7_pointer func); /* (signature obj) */ +s7_pointer s7_make_signature(s7_scheme *sc, s7_int len, ...); /* procedure-signature data */ +s7_pointer s7_make_circular_signature(s7_scheme *sc, s7_int cycle_point, s7_int len, ...); + +/* possibly unsafe functions: */ +s7_pointer s7_make_function(s7_scheme *sc, const char *name, s7_function fnc, s7_int required_args, s7_int optional_args, bool rest_arg, const char *doc); + +/* safe functions: */ +s7_pointer s7_make_safe_function(s7_scheme *sc, const char *name, s7_function fnc, s7_int required_args, s7_int optional_args, bool rest_arg, const char *doc); +s7_pointer s7_make_typed_function(s7_scheme *sc, const char *name, s7_function f, + s7_int required_args, s7_int optional_args, bool rest_arg, const char *doc, s7_pointer signature); + +/* arglist or body possibly unsafe: */ +s7_pointer s7_define_function(s7_scheme *sc, const char *name, s7_function fnc, s7_int required_args, s7_int optional_args, bool rest_arg, const char *doc); + +/* arglist and body safe: */ +s7_pointer s7_define_safe_function(s7_scheme *sc, const char *name, s7_function fnc, s7_int required_args, s7_int optional_args, bool rest_arg, const char *doc); +s7_pointer s7_define_typed_function(s7_scheme *sc, const char *name, s7_function fnc, + s7_int required_args, s7_int optional_args, bool rest_arg, + const char *doc, s7_pointer signature); + +/* arglist unsafe or body unsafe: */ +s7_pointer s7_define_unsafe_typed_function(s7_scheme *sc, const char *name, s7_function fnc, + s7_int required_args, s7_int optional_args, bool rest_arg, + const char *doc, s7_pointer signature); + +/* arglist safe, body possibly unsafe: */ +s7_pointer s7_define_semisafe_typed_function(s7_scheme *sc, const char *name, s7_function fnc, + s7_int required_args, s7_int optional_args, bool rest_arg, + const char *doc, s7_pointer signature); + +s7_pointer s7_make_function_star(s7_scheme *sc, const char *name, s7_function fnc, const char *arglist, const char *doc); +s7_pointer s7_make_safe_function_star(s7_scheme *sc, const char *name, s7_function fnc, const char *arglist, const char *doc); +void s7_define_function_star(s7_scheme *sc, const char *name, s7_function fnc, const char *arglist, const char *doc); +void s7_define_safe_function_star(s7_scheme *sc, const char *name, s7_function fnc, const char *arglist, const char *doc); +void s7_define_typed_function_star(s7_scheme *sc, const char *name, s7_function fnc, const char *arglist, const char *doc, s7_pointer signature); +s7_pointer s7_define_macro(s7_scheme *sc, const char *name, s7_function fnc, s7_int required_args, s7_int optional_args, bool rest_arg, const char *doc); + + /* s7_make_function creates a Scheme function object from the s7_function 'fnc'. + * Its name (for s7_describe_object) is 'name', it requires 'required_args' arguments, + * can accept 'optional_args' other arguments, and if 'rest_arg' is true, it accepts + * a "rest" argument (a list of all the trailing arguments). The function's documentation + * is 'doc'. The s7_make_functions return the new function, but the s7_define_function (and macro) + * procedures return the name as a symbol (a desire for backwards compatibility brought about this split). + * + * s7_define_function is the same as s7_make_function, but it also adds 'name' (as a symbol) to the + * global (top-level) environment, with the function as its value (and returns the symbol, not the function). + * For example, the Scheme function 'car' is essentially: + * + * s7_pointer g_car(s7_scheme *sc, s7_pointer args) {return(s7_car(s7_car(args)));} + * + * then bound to the name "car": + * + * s7_define_function(sc, "car", g_car, 1, 0, false, "(car obj)"); + * ^ one required arg, no optional arg, no "rest" arg + * + * s7_is_function returns true if its argument is a function defined in this manner. + * s7_apply_function applies the function (the result of s7_make_function) to the arguments. + * + * s7_define_macro defines a Scheme macro; its arguments are not evaluated (unlike a function), + * but the macro's returned value (assumed to be some sort of Scheme expression) is evaluated. + * s7_define_macro returns the name as a symbol. + * + * Use the "unsafe" definer if the function might call the evaluator itself in some way (s7_apply_function for example), + * or messes with s7's stack. + */ + + /* In s7, (define* (name . args) body) or (define name (lambda* args body)) + * define a function that takes optional (keyword) named arguments. + * The "args" is a list that can contain either names (normal arguments), + * or lists of the form (name default-value), in any order. When called, + * the names are bound to their default values (or #f), then the function's + * current arglist is scanned. Any name that occurs as a keyword (":name") + * precedes that argument's new value. Otherwise, as values occur, they + * are plugged into the environment based on their position in the arglist + * (as normal for a function). So, + * + * (define* (hi a (b 32) (c "hi")) (list a b c)) + * (hi 1) -> '(1 32 "hi") + * (hi :b 2 :a 3) -> '(3 2 "hi") + * (hi 3 2 1) -> '(3 2 1) + * + * :rest causes its argument to be bound to the rest of the arguments at that point. + * + * The C connection to this takes the function name, the C function to call, the argument + * list as written in Scheme, and the documentation string. s7 makes sure the arguments + * are ordered correctly and have the specified defaults before calling the C function. + * s7_define_function_star(sc, "a-func", a_func, "arg1 (arg2 32)", "an example of C define*"); + * Now (a-func :arg1 2) calls the C function a_func(2, 32). See the example program in s7.html. + * + * In s7 Scheme, define* can be used just for its optional arguments feature, but that is + * included in s7_define_function. s7_define_function_star implements keyword arguments + * for C-level functions (as well as optional/rest arguments). + */ + +s7_pointer s7_apply_function(s7_scheme *sc, s7_pointer fnc, s7_pointer args); +s7_pointer s7_apply_function_star(s7_scheme *sc, s7_pointer fnc, s7_pointer args); + +s7_pointer s7_call(s7_scheme *sc, s7_pointer func, s7_pointer args); +s7_pointer s7_call_with_location(s7_scheme *sc, s7_pointer func, s7_pointer args, const char *caller, const char *file, s7_int line); +s7_pointer s7_call_with_catch(s7_scheme *sc, s7_pointer tag, s7_pointer body, s7_pointer error_handler); + + /* s7_call takes a Scheme function and applies it to 'args' (a list of arguments) returning the result. + * s7_pointer kar; + * kar = s7_make_function(sc, "car", g_car, 1, 0, false, "(car obj)"); + * s7_integer(s7_call(sc, kar, s7_cons(sc, s7_cons(sc, s7_make_integer(sc, 123), s7_nil(sc)), s7_nil(sc)))); + * returns 123. + * + * s7_call_with_location passes some information to the error handler. + * s7_call makes sure some sort of catch exists if an error occurs during the call, but + * s7_apply_function does not -- it assumes the catch has been set up already. + * s7_call_with_catch wraps an explicit catch around a function call ("body" above); + * s7_call_with_catch(sc, tag, body, err) is equivalent to (catch tag body err). + */ + +bool s7_is_dilambda(s7_pointer obj); +s7_pointer s7_dilambda(s7_scheme *sc, + const char *name, + s7_pointer (*getter)(s7_scheme *sc, s7_pointer args), + s7_int get_req_args, s7_int get_opt_args, + s7_pointer (*setter)(s7_scheme *sc, s7_pointer args), + s7_int set_req_args, s7_int set_opt_args, + const char *documentation); +s7_pointer s7_typed_dilambda(s7_scheme *sc, + const char *name, + s7_pointer (*getter)(s7_scheme *sc, s7_pointer args), + s7_int get_req_args, s7_int get_opt_args, + s7_pointer (*setter)(s7_scheme *sc, s7_pointer args), + s7_int set_req_args, s7_int set_opt_args, + const char *documentation, + s7_pointer get_sig, s7_pointer set_sig); +s7_pointer s7_dilambda_with_environment(s7_scheme *sc, s7_pointer envir, + const char *name, + s7_pointer (*getter)(s7_scheme *sc, s7_pointer args), + s7_int get_req_args, s7_int get_opt_args, + s7_pointer (*setter)(s7_scheme *sc, s7_pointer args), + s7_int set_req_args, s7_int set_opt_args, + const char *documentation); + +s7_pointer s7_values(s7_scheme *sc, s7_pointer args); /* (values ...) */ +bool s7_is_multiple_value(s7_pointer obj); /* is obj the results of (values ...) */ + +s7_pointer s7_make_iterator(s7_scheme *sc, s7_pointer e); /* (make-iterator e) */ +bool s7_is_iterator(s7_pointer obj); /* (iterator? obj) */ +bool s7_iterator_is_at_end(s7_scheme *sc, s7_pointer obj); /* (iterator-at-end? obj) */ +s7_pointer s7_iterate(s7_scheme *sc, s7_pointer iter); /* (iterate iter) */ + +s7_pointer s7_copy(s7_scheme *sc, s7_pointer args); /* (copy ...) */ +s7_pointer s7_fill(s7_scheme *sc, s7_pointer args); /* (fill! ...) */ +s7_pointer s7_type_of(s7_scheme *sc, s7_pointer arg); /* (type-of arg) */ + + + +/* -------------------------------------------------------------------------------- */ +/* c types/objects */ + +void s7_mark(s7_pointer p); + +bool s7_is_c_object(s7_pointer p); +s7_int s7_c_object_type(s7_pointer obj); +void *s7_c_object_value(s7_pointer obj); +void *s7_c_object_value_checked(s7_pointer obj, s7_int type); +s7_pointer s7_make_c_object(s7_scheme *sc, s7_int type, void *value); +s7_pointer s7_make_c_object_with_let(s7_scheme *sc, s7_int type, void *value, s7_pointer let); +s7_pointer s7_make_c_object_without_gc(s7_scheme *sc, s7_int type, void *value); +s7_pointer s7_c_object_let(s7_pointer obj); +s7_pointer s7_c_object_set_let(s7_scheme *sc, s7_pointer obj, s7_pointer e); +/* the "let" in s7_make_c_object_with_let and s7_c_object_set_let needs to be GC protected by marking it in the c_object's mark function */ + +s7_int s7_make_c_type(s7_scheme *sc, const char *name); /* create a new c_object type */ + +/* old style free/mark/equal */ +void s7_c_type_set_free (s7_scheme *sc, s7_int tag, void (*gc_free)(void *value)); +void s7_c_type_set_mark (s7_scheme *sc, s7_int tag, void (*mark)(void *value)); +void s7_c_type_set_equal (s7_scheme *sc, s7_int tag, bool (*equal)(void *value1, void *value2)); + +/* new style free/mark/equal and equivalent */ +void s7_c_type_set_gc_free (s7_scheme *sc, s7_int tag, s7_pointer (*gc_free) (s7_scheme *sc, s7_pointer obj)); /* free c_object function, new style*/ +void s7_c_type_set_gc_mark (s7_scheme *sc, s7_int tag, s7_pointer (*mark) (s7_scheme *sc, s7_pointer obj)); /* mark function, new style */ +void s7_c_type_set_is_equal (s7_scheme *sc, s7_int tag, s7_pointer (*is_equal) (s7_scheme *sc, s7_pointer args)); +void s7_c_type_set_is_equivalent(s7_scheme *sc, s7_int tag, s7_pointer (*is_equivalent)(s7_scheme *sc, s7_pointer args)); + +void s7_c_type_set_ref (s7_scheme *sc, s7_int tag, s7_pointer (*ref) (s7_scheme *sc, s7_pointer args)); +void s7_c_type_set_set (s7_scheme *sc, s7_int tag, s7_pointer (*set) (s7_scheme *sc, s7_pointer args)); +void s7_c_type_set_length (s7_scheme *sc, s7_int tag, s7_pointer (*length) (s7_scheme *sc, s7_pointer args)); +void s7_c_type_set_copy (s7_scheme *sc, s7_int tag, s7_pointer (*copy) (s7_scheme *sc, s7_pointer args)); +void s7_c_type_set_fill (s7_scheme *sc, s7_int tag, s7_pointer (*fill) (s7_scheme *sc, s7_pointer args)); +void s7_c_type_set_reverse (s7_scheme *sc, s7_int tag, s7_pointer (*reverse) (s7_scheme *sc, s7_pointer args)); +void s7_c_type_set_to_list (s7_scheme *sc, s7_int tag, s7_pointer (*to_list) (s7_scheme *sc, s7_pointer args)); +void s7_c_type_set_to_string (s7_scheme *sc, s7_int tag, s7_pointer (*to_string) (s7_scheme *sc, s7_pointer args)); +void s7_c_type_set_getter (s7_scheme *sc, s7_int tag, s7_pointer getter); +void s7_c_type_set_setter (s7_scheme *sc, s7_int tag, s7_pointer setter); +/* For the copy function, either the first or second argument can be a c-object of the given type. */ + + /* These functions create a new Scheme object type. There is a simple example in s7.html. + * + * s7_make_c_type creates a new C-based type for Scheme. It returns an s7_int "tag" used to indentify this type elsewhere. + * The functions associated with this type are set via s7_c_type_set*: + * + * free: the function called when an object of this type is about to be garbage collected + * mark: called during the GC mark pass -- you should call s7_mark + * on any embedded s7_pointer associated with the object (including its "let") to protect if from the GC. + * gc_mark and gc_free are new forms of mark and free, taking the c_object s7_pointer rather than its void* value + * equal: compare two objects of this type; (equal? obj1 obj2) -- this is the old form + * is_equal: compare objects as in equal? -- this is the new form of equal? + * is_equivalent: compare objects as in equivalent? + * ref: a function that is called whenever an object of this type + * occurs in the function position (at the car of a list; the rest of the list + * is passed to the ref function as the arguments: (obj ...)) + * set: a function that is called whenever an object of this type occurs as + * the target of a generalized set! (set! (obj ...) val) + * length: the function called when the object is asked what its length is. + * copy: the function called when a copy of the object is needed. + * fill: the function called to fill the object with some value. + * reverse: similarly... + * to_string: object->string for an object of this type + * getter/setter: these help the optimizer handle applicable c-objects (see s7test.scm for an example) + * + * s7_is_c_object returns true if 'p' is a c_object + * s7_c_object_type returns the c_object's type (the s7_int passed to s7_make_c_object) + * s7_c_object_value returns the value bound to that c_object (the void *value of s7_make_c_object) + * s7_make_c_object creates a new Scheme entity of the given type with the given (uninterpreted) value + * s7_mark marks any Scheme c_object as in-use (use this in the mark function to mark + * any embedded s7_pointer variables). + */ + +/* -------------------------------------------------------------------------------- */ +/* the new clm optimizer! this time for sure! + * d=double, i=integer, v=c_object, p=s7_pointer + * first return type, then arg types, d_vd -> returns double takes c_object and double (i.e. a standard clm generator) + * + * It is possible to tell s7 to call a foreign function directly, without any scheme-related + * overhead. The call needs to take the form of one of the s7_*_t functions in s7.h. For example, + * one way to call + is to pass it two s7_double arguments and get an s7_double back. This is the + * s7_d_dd_t function (the first letter gives the return type, the rest give successive argument types). + * We tell s7 about it via s7_set_d_dd_function. Whenever s7's optimizer encounters + with two arguments + * that it (the optimizer) knows are s7_doubles, in a context where an s7_double result is expected, + * s7 calls the s7_d_dd_t function directly without consing a list of arguments, and without + * wrapping up the result as a scheme cell. + */ + +s7_pfunc s7_optimize(s7_scheme *sc, s7_pointer expr); + +typedef s7_double (*s7_float_function)(s7_scheme *sc); +s7_float_function s7_float_optimize(s7_scheme *sc, s7_pointer expr); + +typedef s7_double (*s7_d_t)(void); +void s7_set_d_function(s7_scheme *sc, s7_pointer f, s7_d_t df); +s7_d_t s7_d_function(s7_pointer f); + +typedef s7_double (*s7_d_d_t)(s7_double x); +void s7_set_d_d_function(s7_scheme *sc, s7_pointer f, s7_d_d_t df); +s7_d_d_t s7_d_d_function(s7_pointer f); + +typedef s7_double (*s7_d_dd_t)(s7_double x1, s7_double x2); +void s7_set_d_dd_function(s7_scheme *sc, s7_pointer f, s7_d_dd_t df); +s7_d_dd_t s7_d_dd_function(s7_pointer f); + +typedef s7_double (*s7_d_ddd_t)(s7_double x1, s7_double x2, s7_double x3); +void s7_set_d_ddd_function(s7_scheme *sc, s7_pointer f, s7_d_ddd_t df); +s7_d_ddd_t s7_d_ddd_function(s7_pointer f); + +typedef s7_double (*s7_d_dddd_t)(s7_double x1, s7_double x2, s7_double x3, s7_double x4); +void s7_set_d_dddd_function(s7_scheme *sc, s7_pointer f, s7_d_dddd_t df); +s7_d_dddd_t s7_d_dddd_function(s7_pointer f); + +typedef s7_double (*s7_d_v_t)(void *v); +void s7_set_d_v_function(s7_scheme *sc, s7_pointer f, s7_d_v_t df); +s7_d_v_t s7_d_v_function(s7_pointer f); + +typedef s7_double (*s7_d_vd_t)(void *v, s7_double d); +void s7_set_d_vd_function(s7_scheme *sc, s7_pointer f, s7_d_vd_t df); +s7_d_vd_t s7_d_vd_function(s7_pointer f); + +typedef s7_double (*s7_d_vdd_t)(void *v, s7_double x1, s7_double x2); +void s7_set_d_vdd_function(s7_scheme *sc, s7_pointer f, s7_d_vdd_t df); +s7_d_vdd_t s7_d_vdd_function(s7_pointer f); + +typedef s7_double (*s7_d_vid_t)(void *v, s7_int i, s7_double d); +void s7_set_d_vid_function(s7_scheme *sc, s7_pointer f, s7_d_vid_t df); +s7_d_vid_t s7_d_vid_function(s7_pointer f); + +typedef s7_double (*s7_d_p_t)(s7_pointer p); +void s7_set_d_p_function(s7_scheme *sc, s7_pointer f, s7_d_p_t df); +s7_d_p_t s7_d_p_function(s7_pointer f); + +typedef s7_double (*s7_d_pd_t)(s7_pointer v, s7_double x); +void s7_set_d_pd_function(s7_scheme *sc, s7_pointer f, s7_d_pd_t df); +s7_d_pd_t s7_d_pd_function(s7_pointer f); + +typedef s7_double (*s7_d_7pi_t)(s7_scheme *sc, s7_pointer v, s7_int i); +void s7_set_d_7pi_function(s7_scheme *sc, s7_pointer f, s7_d_7pi_t df); +s7_d_7pi_t s7_d_7pi_function(s7_pointer f); + +typedef s7_double (*s7_d_7pid_t)(s7_scheme *sc, s7_pointer v, s7_int i, s7_double d); +void s7_set_d_7pid_function(s7_scheme *sc, s7_pointer f, s7_d_7pid_t df); +s7_d_7pid_t s7_d_7pid_function(s7_pointer f); + +typedef s7_double (*s7_d_id_t)(s7_int i, s7_double d); +void s7_set_d_id_function(s7_scheme *sc, s7_pointer f, s7_d_id_t df); +s7_d_id_t s7_d_id_function(s7_pointer f); + +typedef s7_double (*s7_d_ip_t)(s7_int i, s7_pointer p); +void s7_set_d_ip_function(s7_scheme *sc, s7_pointer f, s7_d_ip_t df); +s7_d_ip_t s7_d_ip_function(s7_pointer f); + +typedef s7_int (*s7_i_i_t)(s7_int x); +void s7_set_i_i_function(s7_scheme *sc, s7_pointer f, s7_i_i_t df); +s7_i_i_t s7_i_i_function(s7_pointer f); + +typedef s7_int (*s7_i_7d_t)(s7_scheme *sc, s7_double x); +void s7_set_i_7d_function(s7_scheme *sc, s7_pointer f, s7_i_7d_t df); +s7_i_7d_t s7_i_7d_function(s7_pointer f); + +typedef s7_int (*s7_i_ii_t)(s7_int i1, s7_int i2); +void s7_set_i_ii_function(s7_scheme *sc, s7_pointer f, s7_i_ii_t df); +s7_i_ii_t s7_i_ii_function(s7_pointer f); + +typedef s7_int (*s7_i_7p_t)(s7_scheme *sc, s7_pointer p); +void s7_set_i_7p_function(s7_scheme *sc, s7_pointer f, s7_i_7p_t df); +s7_i_7p_t s7_i_7p_function(s7_pointer f); + +typedef bool (*s7_b_p_t)(s7_pointer p); +void s7_set_b_p_function(s7_scheme *sc, s7_pointer f, s7_b_p_t df); +s7_b_p_t s7_b_p_function(s7_pointer f); + +typedef s7_pointer (*s7_p_d_t)(s7_scheme *sc, s7_double x); +void s7_set_p_d_function(s7_scheme *sc, s7_pointer f, s7_p_d_t df); +s7_p_d_t s7_p_d_function(s7_pointer f); + +typedef s7_pointer (*s7_p_p_t)(s7_scheme *sc, s7_pointer p); +void s7_set_p_p_function(s7_scheme *sc, s7_pointer f, s7_p_p_t df); +s7_p_p_t s7_p_p_function(s7_pointer f); + +typedef s7_pointer (*s7_p_pp_t)(s7_scheme *sc, s7_pointer p1, s7_pointer p2); +void s7_set_p_pp_function(s7_scheme *sc, s7_pointer f, s7_p_pp_t df); +s7_p_pp_t s7_p_pp_function(s7_pointer f); + +typedef s7_pointer (*s7_p_ppp_t)(s7_scheme *sc, s7_pointer p1, s7_pointer p2, s7_pointer p3); +void s7_set_p_ppp_function(s7_scheme *sc, s7_pointer f, s7_p_ppp_t df); +s7_p_ppp_t s7_p_ppp_function(s7_pointer f); + +/* Here is an example of using these functions; more extensive examples are in clm2xen.c in sndlib, and in s7.c. + * (This example comes from a HackerNews discussion): + * plus.c: + * -------- + * #include "s7.h" + * + * s7_pointer g_plusone(s7_scheme *sc, s7_pointer args) {return(s7_make_integer(sc, s7_integer(s7_car(args)) + 1));} + * s7_int plusone(s7_int x) {return(x + 1);} + * + * void plusone_init(s7_scheme *sc) + * { + * s7_define_safe_function(sc, "plusone", g_plusone, 1, 0, false, ""); + * s7_set_i_i_function(sc, s7_name_to_value(sc, "plusone"), plusone); + * } + * -------- + * gcc -c plus.c -fPIC -O2 -lm + * gcc plus.o -shared -o plus.so -ldl -lm -Wl,-export-dynamic + * repl + * <1> (load "plus.so" (inlet 'init_func 'plusone_init)) + * -------- + */ + +/* -------------------------------------------------------------------------------- */ + +/* maybe remove these? */ +s7_pointer s7_slot(s7_scheme *sc, s7_pointer symbol); +s7_pointer s7_slot_value(s7_pointer slot); +s7_pointer s7_slot_set_value(s7_scheme *sc, s7_pointer slot, s7_pointer value); +s7_pointer s7_make_slot(s7_scheme *sc, s7_pointer env, s7_pointer symbol, s7_pointer value); +void s7_slot_set_real_value(s7_scheme *sc, s7_pointer slot, s7_double value); + +/* -------------------------------------------------------------------------------- */ + +#if (!DISABLE_DEPRECATED) +typedef s7_int s7_Int; +typedef s7_double s7_Double; + +#define s7_is_object s7_is_c_object +#define s7_object_type s7_c_object_type +#define s7_object_value s7_c_object_value +#define s7_make_object s7_make_c_object +#define s7_mark_object s7_mark +#define s7_UNSPECIFIED(Sc) s7_unspecified(Sc) +#endif + + +bool s7_is_bignum(s7_pointer obj); +#if WITH_GMP + mpfr_t *s7_big_real(s7_pointer x); + mpz_t *s7_big_integer(s7_pointer x); + mpq_t *s7_big_ratio(s7_pointer x); + mpc_t *s7_big_complex(s7_pointer x); + + bool s7_is_big_real(s7_pointer x); + bool s7_is_big_integer(s7_pointer x); + bool s7_is_big_ratio(s7_pointer x); + bool s7_is_big_complex(s7_pointer x); + + s7_pointer s7_make_big_real(s7_scheme *sc, mpfr_t *val); + s7_pointer s7_make_big_integer(s7_scheme *sc, mpz_t *val); + s7_pointer s7_make_big_ratio(s7_scheme *sc, mpq_t *val); + s7_pointer s7_make_big_complex(s7_scheme *sc, mpc_t *val); +#endif + + +/* -------------------------------------------------------------------------------- + * + * s7 changes + + * 8-Jan-23: s7_gc_protect_2_via_stack. + * -------- + * 15-Nov: s7_make_c_pointer_wrapper_with_type. + * 17-Mar-23: moved s7_is_bignum declaration outside WITH_GMP. + * -------- + * 9-Nov: nan, nan-payload, +nan.. + * 19-Oct: s7_let_field* synonyms: s7_starlet*. + * 16-Sep: s7_number_to_real_with_location. s7_wrong_type_error. s7_make_string_wrapper_with_length. s7_make_semipermanent_string. + * 21-Apr: s7_is_multiple_value. + * 11-Apr: removed s7_apply_*. + * 22-Mar: s7_eval_with_location. + * 16-Mar: s7_list_to_array for the s7_apply_* changes. + * 8-Mar-22: moved s7_apply_* to xen.h if DISABLE_DEPRECATED. + * -------- + * 24-Nov: moved s7_p_p_t and friends into s7.h. + * 23-Sep: s7_make_byte_vector, s7_is_byte_vector, s7_byte_vector_ref|set|elements. + * 25-Aug: s7_output_string (like s7_get_output_string, but returns an s7 string). + * 19-Jul: s7_is_random_state, s7_make_normal_vector. s7_array_to_list. + * 12-Apr: s7_optimize now returns an s7_pfunc, not an s7_function. + * 7-Apr: removed the "args" parameter from s7_float_function. added s7_make_c_object_without_gc. + * 31-Mar: vector-rank, vector-dimension. + * 17-Mar: removed deprecated nan.0 and inf.0 due to compiler stupidity. + * 25-Jan: s7_define_semisafe_typed_function. + * 6-Jan-21: s7_hash_code. + * -------- + * 14-Oct: s7_load_c_string and s7_load_c_string_with_environment. + * 10-Sep: s7_free. + * 5-Aug: s7_make_list. + * 31-July: s7_define_constant_with_environment and s7_dilambda_with_environment. + * 29-July: open-input|output-function. add S7_NUM_READ_CHOICES to s7_read_t enum and remove (unused) S7_READ_BYTE. + * 20-July: s7_c_pointer_with_type. notcurses_s7.c and nrepl.scm. *autoload-hook*. + * 8-July: s7_int|float_vector_ref|set. subvector parameter order changed. + * 17-June: removed deprecated *s7* accessors. + * 20-May: libarb_s7.c. + * 12-May: s7_is_big*. + * 6-May: added s7_scheme* initial arguments to s7_set_* opt_func calls (s7_set_d_d_function for example). + * 23-Apr: added s7_scheme* initial argument to s7_is_eqv. + * 9-Mar: move openlets to (*s7* 'openlets), s7-version to (*s7* 'version), deprecate nan.0 and inf.0. + * 17-Feb: s7_let_field_ref|set for *s7* access. *function* to replace __func__. + * deprecate __func__, s7_print_length, s7_float_format_precision, s7_set_gc_stats. + * 31-Jan: macro(*) and bacro(*) -- unnamed macros analogous to lambda(*). + * 20-Jan: debug.scm and (*s7* 'debug), trace-in, dynamic-unwind. + * remove coverlets (openlets is now a dilambda). + * 10-Jan: s7_c_type_set_gc_free and s7_c_type_set_gc_mark. + * 2-Jan-20: s7_c_type_set_is_equal and s7_c_type_set_is_equivalent. + * -------- + * 2-Nov: s7_repl. + * 30-Oct: change S7_DATE format, and start updating it to reflect s7.c. + * 30-Jul: define-expansion*. + * 12-Jul: s7_call_with_catch, s7_load now returns NULL if file not found (rather than raise an error). + * 8-July: most-positive-fixnum and most-negative-fixnum moved to *s7*. + * 23-May: added s7_scheme argument to s7_c_object_set_let. + * 19-May: s7_gc_stats renamed s7_set_gc_stats. + * 7-May: s7_gc_unprotect_via_stack and s7_gc_(un)protect_via_location. + * 22-Mar: s7_float_format_precision. port-position. port-file. + * 4-Jan-19: morally-equal? -> equivalent? + * -------- + * 29-Dec: s7_c_type_set_getter|setter (implicit c-object access). + * 23-Dec: remove hash-table, rename hash-table* to hash-table. add weak-hash-table. + * 3-Dec: deprecate s7_gc_unprotect (use s7_gc_unprotect_at). + * 21-Nov: added s7_history_enabled and s7_set_history_enabled. + * 3-Nov: removed the "value" argument from s7_for_each_symbol. + * 22-Sep: s7_list_nl. + * 12-Sep: byte-vectors can be multidimensional; homogenous vectors of any built-in type. typed hash-tables. + * 29-Jul: symbol-setter deprecated (use setter). s7_symbol_documentation (and setter) folded into s7_documentation. + * 12-Jul: changed s7_vector_dimensions|offsets. + * Added s7_scheme* arg to make_permanent_string and several of the optimizer functions. + * 3-Jul: changed make-shared-vector to subvector. + * 20-May: s7_keyword_to_symbol. + * 6-May: s7_mark_c_object -> s7_mark. + * 26-Apr: s7_c_type_set_to_list|string, s7_c_type_set_apply -> s7_c_type_set_ref, removed s7_c_type_set_set|apply_direct + * c_type length|set|ref are now s7_functions (args, not obj, etc). + * 23-Mar: s7_peek_char and s7_read_char now return s7_pointer, s7_write_char takes s7_pointer, not int32_t c + * s7_gc_protect and friends now return/take s7_int location, not uint32_t. + * removed s7_new_type_x. + * 19-Mar: int32_t -> s7_int in various functions. + * 17-Mar: deprecate s7_ulong and s7_ulong_long functions. + * 26-Jan-18: s7_set_setter. + * -------- + * 11-Dec: s7_gc_protect_via_stack + * 3-Oct: renamed procedure-signature -> signature, procedure-documentation -> documentation, and procedure-setter -> setter. + * 18-Sep: s7_immutable, s7_is_immutable. define-constant follows lexical scope now. + * s7_symbol_access -> s7_symbol_setter, symbol-access -> symbol-setter. + * 3-Aug: object->c_object name changes. + * 28-Jul: s7_make_c_pointer_with_type and s7_c_pointer_type. + * 24-Jul: int64_t rather than long long int, and various related changes. + * 18-Jul: s7_make_object_with_let. + * 8-July: s7_define_typed_function_star, s7_make_function_star. s7_apply_function_star. + * 27-June: s7_make_string_wrapper. + * 22-May: lambda* keyword arg handling changed slightly. + * 9-May: s7_history, s7_add_to_history. + * 20-Apr: s7_tree_memq (for Snd), s7_type_of, many changes for new clm optimizer. + * 10-Apr: added s7_scheme first argument to s7_iterator_is_at_end. + * 28-Mar: removed the "rf", "pf" and "if" clm optimization functions. + * s7_optimize, s7_float_optimize, s7_procedure_signature. + * 22-Feb: removed the "gf" clm optimization functions. + * 11-Feb: #e, #i, #d removed. #i(...) is an int-vector constant, #r(...) a float-vector. + * 2-Jan-17: {apply_values} -> apply-values, {list} -> list-values, and {append} -> append. + * -------- + * 23-Sep: make-keyword -> string->keyword. + * 9-Aug: s7_varlet. + * 29-Jul: s7_define_unsafe_typed_function. + * 30-May: symbol takes any number of args. make-vector no longer takes an optional fourth argument. + * 24-May: let-ref/set! check rootlet now if let is not an open let; setter for with-let. + * 20-Feb: removed last vestiges of quasiquoted vector support. + * 3-Feb: *cload-directory*. + * 14-Jan: profile.scm. Moved multiple-value-set! to stuff.scm. Setter for port-line-number. + * 7-Jan: s7_load_with_environment. + * s7_eval_c_string takes only one statement now (use begin to handle multiple statements) + * 4-Jan-16: remove s7_eval_form, change s7_eval to take its place. + * -------- + * 11-Dec: owlet error-history field if WITH_HISTORY=1 + * 6-Nov: removed :key and :optional. + * 16-Oct: s7_make_random_state -> s7_random_state. + * 16-Aug: remove s7_define_integer_function, s7_function_set_removes_temp, + * add s7_define_typed_function, s7_make_signature. + * 5-Aug: added s7_scheme* arg to s7_openlet and s7_outlet. + * 3-Jul: s7_Double -> s7_double, s7_Int -> s7_int. Removed function_chooser_data. + * 27-Jun: s7_rf_t, s7_rp_t etc. + * 19-Jun: removed the ex_parser stuff, set_step_safe, s7_ex_fallback. + * 5-May: s7_make_iterator and friends. + * 16-Apr: added s7_fill, changed arg interpretation of s7_copy, s7_dynamic_wind. + * 30-Mar: s7_eval_c_string_with_environment (repl experiment). + * 19-Mar: repl.scm. + * 28-Feb: s7_vector_print_length -> s7_print_length, set case also. + * 25-Feb: s7_closure_* funcs to replace clumsy (deprecated) s7_procedure_source. + * 29-Jan: changed args to s7_new_type_x (added s7_scheme arg, fill! takes s7_function). + * 14-Jan-15: make-iterator, iterator? + * -------- + * 26-Dec: s7_arity replaces s7_procedure_arity. s7_define_integer_function. deprecate s7_procedure_name. + * 5-Nov: s7_shadow_rootlet and s7_set_shadow_rootlet. + * 30-Aug: s7_make_safe_function (for cload.scm). + * 25-July: define and friends now return the value, not the symbol. + * procedure_with_setter -> dilambda. + * environment -> let. All the replaced names are deprecated. + * 30-June: s7_method. + * 16-June: remove unoptimize and s7_unoptimize. + * 14-May: s7_define_safe_function_star. Removed s7_catch_all. + * 22-Apr: remove s7_apply_n_10, s7_is_valid_pointer, s7_keyword_eq_p. + * 5-Mar-14: s7_heap_size, s7_gc_freed (subsequently removed). + * -------- + * 8-Nov: s7_symbol_documentation, s7_define_constant_with_documentation. + * 17-Oct: bignum-precision (procedure-with-setter) is now an integer variable named *bignum-precision*. + * 28-Aug: s7_int|float_vector_elements (homogeneous vectors), libc.scm. + * 16-Aug: ~W directive in format, make-shared-vector. + * 23-Jul: s7_autoload_set_names, libm.scm, libdl.scm, libgdbm.scm, r7rs.scm, s7libtest.scm. + * 21-Jul: s7_is_valid (replaces deprecated s7_is_valid_pointer). + * 24-Jun: some bool-related changes for Windows Visual C++, including change to s7_begin_hook. + * 3-June: s7_autoload. + * 28-May: export s7_is_provided. Added s7_scheme* arg to s7_procedure_environment. + * 21-May: equality predicate optional arg in make-hash-table. + * 14-May: glistener.c, glistener.h, s7_symbol_table_find_name (for glistener). + * 2-May: r7rs changes: flush-output-port, vector-append, read|write-string, boolean=?, symbol=?. + * start/end args for string-fill!, vector-fill!, string->list, vector->list, and copy. + * exit, emergency-exit. + * 7-Apr: removed s7_scheme* arg from s7_slot_value, added s7_is_local_variable. + * 25-Mar: char-position, string-position, environment-ref, environment-set! added to the scheme side. + * 9-Jan-13: s7_cos, s7_sin, other optimization changes. + * -------- + * 24-Dec: s7_set_object_array_info and other such changes. + * 20-Nov: removed s7_set_error_exiter and s7_error_and_exit which I think have never been used. + * 22-Oct: changed args to s7_function_class and s7_function_set_class. + * 22-Aug: symbol->dynamic-value. + * 10-Aug: exported s7_outer_environment. + * 6-Aug: removed WITH_OPTIMIZATION. + * 25-July: environment (in scheme). s7_vector_ref_n and s7_vector_set_n. s7_copy. + * added s7_scheme arg to s7_number_to_real|integer. + * 16-July: s7_function_returns_temp (an experiment). + * 2-July: s7_object_set_* functions. + * 11-June: throw. + * 4-June. s7_object_environment. + * 31-May: added s7_scheme argument to all the optimizer chooser functions. + * 24-May: open-environment? + * 17-May: arity, aritable? + * removed trace and untrace. + * 14-May: s7_list. s7_procedure_set_setter. Removed s7_procedure_getter. + * procedure-setter is settable: removed most of procedure-with-setter. + * make-type replaced by open-environment. + * 11-May: s7 2.0: hook implementation changed completely. + * s7_environment_ref|set. + * 4-May: *error-info* replaced by error-environment, and stacktrace has changed. + * 22-Apr: #_ = startup (built-in) value of name + * 17-Apr: with-baffle. + * 14-Apr: WITH_SYSTEM_EXTRAS (default 0) has additional OS and IO functions: + * directory? file-exists? delete-file getenv directory->list system + * 26-Mar: "@" as exponent, WITH_AT_SIGN_AS_EXPONENT switch (default is 1). + * 18-Mar: removed *trace-hook*. + * 6-Feb: random-state?, hash-table-iterator?, and morally-equal? + * 18-Jan: s7_environment_to_list and environment->list return just the local environment's bindings. + * outer-environment returns the environment enclosing its argument (an environment). + * environments are now applicable objects. + * added the object system example to s7.html. + * 12-Jan: added reverse argument to s7_new_type_x. This is needed because an object might implement + * the apply and set methods, but they might refer to different things. + * 6-Jan-12: added (scheme side) logbit?. + * -------- + * 21-Dec: s7_eval, s7_make_slot, s7_slot_set_value. + * changed s7_symbol_slot to s7_slot, and s7_symbol_slot_value to s7_slot_value. + * 26-Oct: s7_procedure_name. + * 6-Oct: changed s7_make_closure args: split the code argument in two (args and body). + * s7_make_closure(... code ...) is now s7_make_closure(... car(code), cdr(code) ...) + * s7_is_environment. + * 19-Aug: s7_function_chooser_data. + * 11-Aug: s7_symbol_accessor functions. s7_cxxxxr. + * 9-Aug: s7_function_chooser, s7_function_choice, s7_function_choice_set_direct. + * 20-Jul: s7_function_class, s7_function_set_class, and s7_function_set_chooser. + * 14-Jul: removed thread and profiling support. + * 5-June: s7_define_safe_function and s7_unoptimize exported; added unoptimize function in scheme. + * 30-May: environment->list and s7_environment_to_list since environments are no longer alists internally. + * 26-May: added s7_scheme argument to s7_procedure_setter and getter (old names had "with_setter_"). + * 28-Apr: s7_help. + * 5-Apr: pair-line-number. + * 14-Mar: s7_make_random_state, optional state argument to s7_random, random-state->list, s7_random_state_to_list. + * 10-Feb: s7_vector_print_length, s7_set_vector_print_length. + * 7-Feb: s7_begin_hook, s7_set_begin_hook. + * 25-Jan: s7_is_thread, s7_thread, s7_make_thread, s7_thread_s7, s7_thread_data. + * s7_is_lock, s7_make_lock, s7_lock. + * changed s7_thread_variable_value to s7_thread_variable. + * 23-Jan: removed (scheme-level) quit. + * 17-Jan-11: make-hash-table-iterator. + * map and for-each accept any applicable object as the first argument. + * format's ~{...~} directive can handle any applicable object. + * -------- + * 17-Dec: removed unquote-splicing; replaced by (unquote (apply values ...)). + * 12-Dec: environment? + * 7-Dec: member and assoc have an optional third arg, the comparison function. + * 1-Dec: *gc-stats* in Scheme, s7_gc_stats in C. + * gmp and gtk-repl examples in s7.html. + * 21-Nov: Load C module example in s7.html. + * 12-Nov: *trace-hook*, *load-hook*, *error-hook*, and *unbound-variable-hook* are now s7 hooks. + * 9-Nov: hooks: C side: s7_is_hook, s7_make_hook, s7_hook_apply, s7_hook_functions, s7_hook_arity, s7_hook_documentation. + * s7 side: hook?, make-hook, hook, hook-apply, hook-functions, hook-arity, hook-documentation. + * 8-Nov: Closure defined in C example in s7.html. + * 23-Oct: s7_call_with_location for better error reporting. + * 19-Oct: *stdin*, *stdout*, *stderr* for default IO ports (rather than nil which is ambiguous). + * 14-Oct: removed special variable support. + * 30-Sep: setters for current-input-port, current-output-port, and current-error-port. + * 30-Aug: :allow-other-keys in define*. + * 10-Aug: added boolean argument use_write to s7_object_to_string (true=write, false=display). + * 30-July: special macro for access to dynamic binding. + * s7_symbol_special_value for C-side access to dynamic bindings. + * s7_is_macro. + * port-closed? returns #t if its argument (a port) is closed. + * 22-July: s7_make_character takes uint32_t, rather than int. + * added symbol function for funny symbol names. + * 12-July: initial-environment. + * 7-July: removed force and delay: use slib. + * 3-July: new backquote implementation. + * 28-June: syntactic keywords (e.g. lambda) are applicable. + * 7-June: changed key arg in s7_hash_table_ref|set to be s7_pointer, not const char*. + * hash-tables can now handle any s7 object as the key. + * map and for-each now pass a hash-table entry to the function, rather than an internal alist. + * reverse of a hash-table reverses the keys and values (i.e. old value becomes new key, etc). + * 2-June: removed procedure-with-setter-setter-arity and folded that info into procedure-arity (use cdddr). + * 22-May: multidimensional vectors are no longer optional. + * 9-May: s7_read_char and s7_peek_char have to return an int, not a char (=-1, but 255 is a legit char). + * s7_write_char and s7_open_output_function have similar changes. + * 3-May: *#readers* to customize #... reading. Also nan? and infinite?. + * multidimensional vector constants using #nD(...): (#2D((1 2 3) (4 5 6)) 0 0) -> 1. + * 13-Apr: removed hash-table|vector|string-for-each -- these are handled by for-each. + * also removed vector-map -- map is generic, but always returns a list. + * 12-Apr: removed immutable constant checks -- see s7.html. + * 7-Apr: *unbound-variable-hook*. + * augment-environment and s7_augment_environment. + * 29-Mar: symbol-access, s7_symbol_access, s7_symbol_set_access. + * C example of notification in s7.html. + * 25-Mar: make-type. s7_is_equal now includes an s7_scheme pointer as its first argument. + * 24-Mar: s7_is_defined. + * 19-Mar: removed encapsulation mechanism and s7_define_set_function. + * 18-Mar: added macro?. + * 27-Feb: removed r4rs-style macro syntax. + * 17-Feb: s7_number_to_integer. + * 20-Jan-10: removed the stack function. + * -------- + * 16-Dec: hash-table-for-each. + * 1-Dec: mpc versions before 0.8.0 are no longer supported. + * 24-Nov: define-macro* and defmacro*. + * force and delay included only if WITH_FORCE set, promise? removed. + * 17-Nov: s7_is_boolean no longer takes the s7_scheme argument. + * 7-Nov: s7_vector_dimensions, s7_vector_offsets, example of use. + * 3-Nov: s7_vector_rank. + * 30-Oct: *trace-hook*. + * 12-Oct: s7_port_filename. + * 5-Oct: s7_c_pointer and friends. + * 14-Sep: s7_values, s7_make_continuation, and a better interrupt example. + * vector-for-each, vector-map, string-for-each. + * 7-Sep: s7_open_input_function. with-environment. receive. + * 3-Sep: s7.html, s7-slib-init.scm. + * s7_stacktrace in s7.h. + * 27-Aug: vector and hash-table sizes are now s7_ints, rather than ints. + * 20-Aug: s7_remove_from_heap. + * 17-Aug: *error-info*. + * 7-Aug: s7_define_function_with_setter. + * s7_quit and example of signal handling. + * 6-Aug: encapsulation. s7_define_set_function. s7_new_type_x. + * generic function: copy, and length is generic. + * 1-Aug: lower-case versions of s7_T and friends. + * s7_define_macro. macroexpand. + * strings are set-applicable (like vectors). + * 31-Jul: *error-hook*. + * 30-Jul: changed backtrace handling: removed backtrace stuff, added stacktrace. + * removed gc-verbose and load-verbose replaced by *load-hook*. + * 23-Jul: __func__. + * 20-Jul: trace and untrace. + * 14-Jul: replaced s7_make_closure_star with s7_define_function_star. + * 29-Jun: s7_format declaration. + * 12-May: s7_is_constant. + * 20-Apr: changed rationalize to be both r5rs-acceptable and fast. + * 6-Apr: added s7_make_permanent_string. + * 14-Mar: removed s7_local_gc_protect and s7_local_gc_unprotect. + * 4-Mar: multidimensional and applicable vectors. + * 1-Mar: s7_random added to s7.h. + * 29-Jan: s7_is_bignum and friends. + * 26-Jan: added s7_scheme arg to s7_vector_fill. + * 16-Jan: s7_is_ulong_long and friends for C pointers in 64-bit situations. + * 9-Jan-09 multiprecision arithmetic (gmp, mpfr, mpc) on the WITH_GMP switch + * -------- + * 29-Dec: "+" specialization example, s7_apply_function. + * 3-Dec: s7_open_output_function. + * 30-Nov: s7_wrong_number_of_args_error. + * 24-Nov: changed s7_make_counted_string to s7_make_string_with_length. + * also added built-in format and define* + * 10-Nov: s7_define_constant, + * built-in (scheme-side) pi, most-positive-fixnum, most-negative-fixnum + * 7-Nov: removed s7_is_immutable and friends, s7_reverse_in_place. + * removed the s7_pointer arg to s7_gc_on. + * added s7_UNSPECIFIED + * 25-Oct: added name arg to s7_make_procedure_with_setter, + * and s7_scheme arg to new_type print func. + * 1-Oct-08 version 1.0 + */ + + +#ifdef __cplusplus +} +#endif + +#endif -- cgit v1.2.3