* General Public License for more details.
*/
+#define _GNU_SOURCE
#include "ao_scheme.h"
#include <limits.h>
#include <math.h>
+#include <stdarg.h>
static int
builtin_size(void *addr)
#endif
void
-ao_scheme_builtin_write(ao_poly b, bool write)
+ao_scheme_builtin_write(FILE *out, ao_poly b, bool write)
{
struct ao_scheme_builtin *builtin = ao_scheme_poly_builtin(b);
(void) write;
- printf("%s", ao_scheme_builtin_name(builtin->func));
+ fputs(ao_scheme_builtin_name(builtin->func), out);
}
-ao_poly
-ao_scheme_check_argc(ao_poly name, struct ao_scheme_cons *cons, int min, int max)
-{
- int argc = 0;
+static bool
+ao_scheme_typecheck(ao_poly actual, int formal_type) {
+ int actual_type;
+
+ if ((formal_type & AO_SCHEME_ARG_MASK) == AO_SCHEME_POLY)
+ return true;
+
+ /* allow nil? */
+ if (actual == AO_SCHEME_NIL)
+ return (formal_type & AO_SCHEME_ARG_NIL_OK) != 0;
+
+ actual_type = ao_scheme_poly_type(actual);
+ formal_type &= AO_SCHEME_ARG_MASK;
+
+ if (actual_type == formal_type)
+ return true;
+ if (actual_type == AO_SCHEME_BUILTIN && formal_type == AO_SCHEME_LAMBDA)
+ return true;
+
+#ifdef AO_SCHEME_FEATURE_BIGINT
+ if (ao_scheme_integer_typep(actual_type) && formal_type == AO_SCHEME_INT)
+ return true;
+#endif
+#ifdef AO_SCHEME_FEATURE_FLOAT
+ if (ao_scheme_number_typep(actual_type) && formal_type == AO_SCHEME_FLOAT)
+ return true;
+#endif
+ return false;
+}
+
+int
+ao_scheme_parse_args(ao_poly name, struct ao_scheme_cons *cons, ...)
+{
+ va_list ap;
+ int formal;
+ int argc = 0;
+ ao_poly car;
+
+ va_start(ap, cons);
+ while ((formal = va_arg(ap, int)) != AO_SCHEME_ARG_END) {
+ if (formal & AO_SCHEME_ARG_OPTIONAL)
+ car = (ao_poly) va_arg(ap, int);
+ if (cons) {
+ car = cons->car;
+ cons = ao_scheme_cons_cdr(cons);
+ if (!ao_scheme_typecheck(car, formal)) {
+ ao_scheme_error(AO_SCHEME_INVALID, "%v: arg %d invalid type %v", name, argc, car);
+ return 0;
+ }
+ } else if (!(formal & AO_SCHEME_ARG_OPTIONAL)) {
+ goto bad_args;
+ }
+ if (formal & AO_SCHEME_ARG_RET_POLY)
+ formal = AO_SCHEME_POLY;
- while (cons && argc <= max) {
+ switch (formal & AO_SCHEME_ARG_MASK) {
+ case AO_SCHEME_INT:
+#ifdef AO_SCHEME_FEATURE_BIGINT
+ case AO_SCHEME_BIGINT:
+#endif
+ *(va_arg(ap, int32_t *)) = ao_scheme_poly_integer(car);
+ break;
+#ifdef AO_SCHEME_FEATURE_FLOAT
+ case AO_SCHEME_FLOAT:
+ *(va_arg(ap, float *)) = ao_scheme_poly_number(car);
+ break;
+#endif
+ case AO_SCHEME_POLY:
+ *(va_arg(ap, ao_poly *)) = car;
+ break;
+ default:
+ *(va_arg(ap, void **)) = ao_scheme_ref(car);
+ break;
+ }
argc++;
- cons = ao_scheme_cons_cdr(cons);
}
- if (argc < min || argc > max)
- return ao_scheme_error(AO_SCHEME_INVALID, "%s: invalid arg count", ao_scheme_poly_atom(name)->name);
- return _ao_scheme_bool_true;
+ if (cons) {
+ bad_args:
+ ao_scheme_error(AO_SCHEME_INVALID, "%v: invalid arg count", name);
+ return 0;
+ }
+ return 1;
}
-static ao_poly
-ao_scheme_opt_arg(struct ao_scheme_cons *cons, int argc, ao_poly def)
+ao_poly
+ao_scheme_arg(struct ao_scheme_cons *cons, int argc)
{
for (;;) {
if (!cons)
- return def;
+ return AO_SCHEME_NIL;
if (argc == 0)
return cons->car;
cons = ao_scheme_cons_cdr(cons);
}
}
-ao_poly
-ao_scheme_arg(struct ao_scheme_cons *cons, int argc)
-{
- return ao_scheme_opt_arg(cons, argc, AO_SCHEME_NIL);
-}
-
-ao_poly
-ao_scheme_check_argt(ao_poly name, struct ao_scheme_cons *cons, int argc, int type, int nil_ok)
-{
- ao_poly car = ao_scheme_arg(cons, argc);
-
- if ((!car && !nil_ok) || ao_scheme_poly_type(car) != type)
- return ao_scheme_error(AO_SCHEME_INVALID, "%v: arg %d invalid type %v", name, argc, car);
- return _ao_scheme_bool_true;
-}
-
-static int32_t
-ao_scheme_arg_int(ao_poly name, struct ao_scheme_cons *cons, int argc)
-{
- ao_poly p = ao_scheme_arg(cons, argc);
- bool fail = false;
- int32_t i = ao_scheme_poly_integer(p, &fail);
-
- if (fail)
- (void) ao_scheme_error(AO_SCHEME_INVALID, "%v: arg %d invalid type %v", name, argc, p);
- return i;
-}
-
-static int32_t
-ao_scheme_opt_arg_int(ao_poly name, struct ao_scheme_cons *cons, int argc, int def)
-{
- ao_poly p = ao_scheme_opt_arg(cons, argc, ao_scheme_int_poly(def));
- bool fail = false;
- int32_t i = ao_scheme_poly_integer(p, &fail);
-
- if (fail)
- (void) ao_scheme_error(AO_SCHEME_INVALID, "%v: arg %d invalid type %v", name, argc, p);
- return i;
-}
-
-ao_poly
-ao_scheme_do_car(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_car, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_car, cons, 0, AO_SCHEME_CONS, 0))
- return AO_SCHEME_NIL;
- return ao_scheme_poly_cons(cons->car)->car;
-}
-
-ao_poly
-ao_scheme_do_cdr(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_cdr, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_cdr, cons, 0, AO_SCHEME_CONS, 0))
- return AO_SCHEME_NIL;
- return ao_scheme_poly_cons(cons->car)->cdr;
-}
-
-ao_poly
-ao_scheme_do_cons(struct ao_scheme_cons *cons)
-{
- ao_poly car, cdr;
- if(!ao_scheme_check_argc(_ao_scheme_atom_cons, cons, 2, 2))
- return AO_SCHEME_NIL;
- car = ao_scheme_arg(cons, 0);
- cdr = ao_scheme_arg(cons, 1);
- return ao_scheme_cons(car, cdr);
-}
-
-ao_poly
-ao_scheme_do_last(struct ao_scheme_cons *cons)
-{
- struct ao_scheme_cons *list;
- if (!ao_scheme_check_argc(_ao_scheme_atom_last, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_last, cons, 0, AO_SCHEME_CONS, 1))
- return AO_SCHEME_NIL;
- for (list = ao_scheme_poly_cons(ao_scheme_arg(cons, 0));
- list;
- list = ao_scheme_cons_cdr(list))
- {
- if (!list->cdr)
- return list->car;
- }
- return AO_SCHEME_NIL;
-}
-
-ao_poly
-ao_scheme_do_length(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_length, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_length, cons, 0, AO_SCHEME_CONS, 1))
- return AO_SCHEME_NIL;
- return ao_scheme_int_poly(ao_scheme_cons_length(ao_scheme_poly_cons(ao_scheme_arg(cons, 0))));
-}
-
-ao_poly
-ao_scheme_do_list_copy(struct ao_scheme_cons *cons)
-{
- struct ao_scheme_cons *new;
-
- if (!ao_scheme_check_argc(_ao_scheme_atom_length, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_length, cons, 0, AO_SCHEME_CONS, 1))
- return AO_SCHEME_NIL;
- new = ao_scheme_cons_copy(ao_scheme_poly_cons(ao_scheme_arg(cons, 0)));
- return ao_scheme_cons_poly(new);
-}
-
-ao_poly
-ao_scheme_do_list_tail(struct ao_scheme_cons *cons)
-{
- ao_poly list;
- int32_t v;
-
- if (!ao_scheme_check_argc(_ao_scheme_atom_list2dtail, cons, 2, 2))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_list2dtail, cons, 0, AO_SCHEME_CONS, 1))
- return AO_SCHEME_NIL;
- list = ao_scheme_arg(cons, 0);
- v = ao_scheme_arg_int(_ao_scheme_atom_list2dtail, cons, 1);
- if (ao_scheme_exception)
- return AO_SCHEME_NIL;
- while (v > 0) {
- if (!list)
- return ao_scheme_error(AO_SCHEME_INVALID, "%v: ran off end", _ao_scheme_atom_list2dtail);
- if (!ao_scheme_is_cons(list))
- return ao_scheme_error(AO_SCHEME_INVALID, "%v: invalid list", _ao_scheme_atom_list2dtail);
- list = ao_scheme_poly_cons(list)->cdr;
- v--;
- }
- return list;
-}
-
ao_poly
ao_scheme_do_quote(struct ao_scheme_cons *cons)
{
- if (!ao_scheme_check_argc(_ao_scheme_atom_quote, cons, 1, 1))
- return AO_SCHEME_NIL;
- return ao_scheme_arg(cons, 0);
-}
-
-ao_poly
-ao_scheme_do_set(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_set, cons, 2, 2))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_set, cons, 0, AO_SCHEME_ATOM, 0))
- return AO_SCHEME_NIL;
-
- return ao_scheme_atom_set(ao_scheme_arg(cons, 0), ao_scheme_arg(cons, 1));
-}
-
-ao_poly
-ao_scheme_do_def(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_def, cons, 2, 2))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_def, cons, 0, AO_SCHEME_ATOM, 0))
- return AO_SCHEME_NIL;
-
- return ao_scheme_atom_def(ao_scheme_arg(cons, 0), ao_scheme_arg(cons, 1));
-}
+ ao_poly val;
-ao_poly
-ao_scheme_do_setq(struct ao_scheme_cons *cons)
-{
- ao_poly name;
- if (!ao_scheme_check_argc(_ao_scheme_atom_set21, cons, 2, 2))
+ if (!ao_scheme_parse_args(_ao_scheme_atom_quote, cons,
+ AO_SCHEME_POLY, &val,
+ AO_SCHEME_ARG_END))
return AO_SCHEME_NIL;
- name = cons->car;
- if (ao_scheme_poly_type(name) != AO_SCHEME_ATOM)
- return ao_scheme_error(AO_SCHEME_INVALID, "set! of non-atom %v", name);
- if (!ao_scheme_atom_ref(name, NULL))
- return ao_scheme_error(AO_SCHEME_INVALID, "atom %v not defined", name);
- return ao_scheme_cons(_ao_scheme_atom_set,
- ao_scheme_cons(ao_scheme_cons(_ao_scheme_atom_quote,
- ao_scheme_cons(name, AO_SCHEME_NIL)),
- cons->cdr));
+ return val;
}
ao_poly
return AO_SCHEME_NIL;
}
-ao_poly
-ao_scheme_do_write(struct ao_scheme_cons *cons)
+static ao_poly
+ao_scheme_do_display_or_write(ao_poly proc, struct ao_scheme_cons *cons, bool write)
{
- ao_poly val = AO_SCHEME_NIL;
- while (cons) {
- val = cons->car;
- ao_scheme_poly_write(val, true);
- cons = ao_scheme_cons_cdr(cons);
- if (cons)
- printf(" ");
+#ifndef AO_SCHEME_FEATURE_PORT
+ ao_poly val;
+ ao_poly port;
+
+ if (!ao_scheme_parse_args(proc, cons,
+ AO_SCHEME_POLY, &val,
+ AO_SCHEME_POLY | AO_SCHEME_ARG_OPTIONAL, AO_SCHEME_NIL, &port,
+ AO_SCHEME_ARG_END))
+ return AO_SCHEME_NIL;
+ ao_scheme_poly_write(stdout, val, write);
+#else
+ ao_poly val;
+ struct ao_scheme_port *port;
+ FILE *file = stdout;
+
+ if (!ao_scheme_parse_args(proc, cons,
+ AO_SCHEME_POLY, &val,
+ AO_SCHEME_PORT | AO_SCHEME_ARG_OPTIONAL, AO_SCHEME_NIL, &port,
+ AO_SCHEME_ARG_END))
+ return AO_SCHEME_NIL;
+ if (port) {
+ file = port->file;
+ if (!file)
+ return _ao_scheme_bool_true;
}
+ ao_scheme_poly_write(file, val, write);
+#endif
return _ao_scheme_bool_true;
}
+ao_poly
+ao_scheme_do_write(struct ao_scheme_cons *cons)
+{
+ return ao_scheme_do_display_or_write(_ao_scheme_atom_write, cons, true);
+}
+
ao_poly
ao_scheme_do_display(struct ao_scheme_cons *cons)
{
- ao_poly val = AO_SCHEME_NIL;
- while (cons) {
- val = cons->car;
- ao_scheme_poly_write(val, false);
- cons = ao_scheme_cons_cdr(cons);
- }
- return _ao_scheme_bool_true;
+ return ao_scheme_do_display_or_write(_ao_scheme_atom_display, cons, false);
}
static ao_poly
switch (op) {
case builtin_minus:
if (ao_scheme_integer_typep(ct))
- ret = ao_scheme_integer_poly(-ao_scheme_poly_integer(ret, NULL));
+ ret = ao_scheme_integer_poly(-ao_scheme_poly_integer(ret));
#ifdef AO_SCHEME_FEATURE_FLOAT
else if (ct == AO_SCHEME_FLOAT)
ret = ao_scheme_float_get(-ao_scheme_poly_number(ret));
#endif
break;
case builtin_divide:
- if (ao_scheme_poly_integer(ret, NULL) == 1) {
+ if (ao_scheme_poly_integer(ret) == 1) {
} else {
#ifdef AO_SCHEME_FEATURE_FLOAT
if (ao_scheme_number_typep(ct)) {
}
cons = ao_scheme_cons_fetch();
} else if (ao_scheme_integer_typep(rt) && ao_scheme_integer_typep(ct)) {
- int32_t r = ao_scheme_poly_integer(ret, NULL);
- int32_t c = ao_scheme_poly_integer(car, NULL);
+ int32_t r = ao_scheme_poly_integer(ret);
+ int32_t c = ao_scheme_poly_integer(car);
#ifdef AO_SCHEME_FEATURE_FLOAT
int64_t t;
#endif
uint8_t lt = ao_scheme_poly_type(left);
uint8_t rt = ao_scheme_poly_type(right);
if (ao_scheme_integer_typep(lt) && ao_scheme_integer_typep(rt)) {
- int32_t l = ao_scheme_poly_integer(left, NULL);
- int32_t r = ao_scheme_poly_integer(right, NULL);
+ int32_t l = ao_scheme_poly_integer(left);
+ int32_t r = ao_scheme_poly_integer(right);
switch (op) {
case builtin_less:
return ao_scheme_compare(cons, builtin_greater_equal);
}
-ao_poly
-ao_scheme_do_list_to_string(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_list2d3estring, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_list2d3estring, cons, 0, AO_SCHEME_CONS, 1))
- return AO_SCHEME_NIL;
- return ao_scheme_string_pack(ao_scheme_poly_cons(ao_scheme_arg(cons, 0)));
-}
-
-ao_poly
-ao_scheme_do_string_to_list(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_string2d3elist, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_string2d3elist, cons, 0, AO_SCHEME_STRING, 0))
- return AO_SCHEME_NIL;
- return ao_scheme_string_unpack(ao_scheme_poly_string(ao_scheme_arg(cons, 0)));
-}
-
-ao_poly
-ao_scheme_do_string_ref(struct ao_scheme_cons *cons)
-{
- char *string;
- int32_t ref;
- if (!ao_scheme_check_argc(_ao_scheme_atom_string2dref, cons, 2, 2))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_string2dref, cons, 0, AO_SCHEME_STRING, 0))
- return AO_SCHEME_NIL;
- ref = ao_scheme_arg_int(_ao_scheme_atom_string2dref, cons, 1);
- if (ao_scheme_exception)
- return AO_SCHEME_NIL;
- string = ao_scheme_poly_string(ao_scheme_arg(cons, 0))->val;
- while (*string && ref) {
- ++string;
- --ref;
- }
- if (!*string)
- return ao_scheme_error(AO_SCHEME_INVALID, "%v: string %v ref %v invalid",
- _ao_scheme_atom_string2dref,
- ao_scheme_arg(cons, 0),
- ao_scheme_arg(cons, 1));
- return ao_scheme_int_poly(*string);
-}
-
-ao_poly
-ao_scheme_do_string_length(struct ao_scheme_cons *cons)
-{
- struct ao_scheme_string *string;
-
- if (!ao_scheme_check_argc(_ao_scheme_atom_string2dlength, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_string2dlength, cons, 0, AO_SCHEME_STRING, 0))
- return AO_SCHEME_NIL;
- string = ao_scheme_poly_string(ao_scheme_arg(cons, 0));
- return ao_scheme_integer_poly(strlen(string->val));
-}
-
-ao_poly
-ao_scheme_do_string_copy(struct ao_scheme_cons *cons)
-{
- struct ao_scheme_string *string;
-
- if (!ao_scheme_check_argc(_ao_scheme_atom_string2dcopy, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_string2dcopy, cons, 0, AO_SCHEME_STRING, 0))
- return AO_SCHEME_NIL;
- string = ao_scheme_poly_string(ao_scheme_arg(cons, 0));
- return ao_scheme_string_poly(ao_scheme_string_copy(string));
-}
-
-ao_poly
-ao_scheme_do_string_set(struct ao_scheme_cons *cons)
-{
- char *string;
- int32_t ref;
- int32_t val;
-
- if (!ao_scheme_check_argc(_ao_scheme_atom_string2dset21, cons, 3, 3))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_string2dset21, cons, 0, AO_SCHEME_STRING, 0))
- return AO_SCHEME_NIL;
- string = ao_scheme_poly_string(ao_scheme_arg(cons, 0))->val;
- ref = ao_scheme_arg_int(_ao_scheme_atom_string2dset21, cons, 1);
- if (ao_scheme_exception)
- return AO_SCHEME_NIL;
- val = ao_scheme_arg_int(_ao_scheme_atom_string2dset21, cons, 2);
- if (ao_scheme_exception)
- return AO_SCHEME_NIL;
- if (!val)
- goto fail;
- while (*string && ref) {
- ++string;
- --ref;
- }
- if (!*string)
- goto fail;
- *string = val;
- return ao_scheme_int_poly(*string);
-fail:
- return ao_scheme_error(AO_SCHEME_INVALID, "%v: %v[%v] = %v invalid",
- _ao_scheme_atom_string2dset21,
- ao_scheme_arg(cons, 0),
- ao_scheme_arg(cons, 1),
- ao_scheme_arg(cons, 2));
-}
-
-ao_poly
-ao_scheme_do_make_string(struct ao_scheme_cons *cons)
-{
- int32_t len;
- char fill;
-
- if (!ao_scheme_check_argc(_ao_scheme_atom_make2dstring, cons, 1, 2))
- return AO_SCHEME_NIL;
- len = ao_scheme_arg_int(_ao_scheme_atom_make2dstring, cons, 0);
- if (ao_scheme_exception)
- return AO_SCHEME_NIL;
- fill = ao_scheme_opt_arg_int(_ao_scheme_atom_make2dstring, cons, 1, ' ');
- if (ao_scheme_exception)
- return AO_SCHEME_NIL;
- return ao_scheme_string_poly(ao_scheme_make_string(len, fill));
-}
-
ao_poly
ao_scheme_do_flush_output(struct ao_scheme_cons *cons)
{
- if (!ao_scheme_check_argc(_ao_scheme_atom_flush2doutput, cons, 0, 0))
+#ifndef AO_SCHEME_FEATURE_PORT
+ ao_poly port;
+ if (!ao_scheme_parse_args(_ao_scheme_atom_flush2doutput, cons,
+ AO_SCHEME_POLY|AO_SCHEME_ARG_OPTIONAL, AO_SCHEME_NIL, &port,
+ AO_SCHEME_ARG_END))
return AO_SCHEME_NIL;
- ao_scheme_os_flush();
+ fflush(stdout);
+#else
+ struct ao_scheme_port *port;
+
+ if (!ao_scheme_parse_args(_ao_scheme_atom_flush2doutput, cons,
+ AO_SCHEME_PORT|AO_SCHEME_ARG_OPTIONAL, AO_SCHEME_NIL, &port,
+ AO_SCHEME_ARG_END))
+ return AO_SCHEME_NIL;
+ fflush(stdout);
+ if (port) {
+ if (port->file)
+ fflush(port->file);
+ } else
+ fflush(stdout);
+#endif
return _ao_scheme_bool_true;
}
+#ifdef AO_SCHEME_FEATURE_GPIO
+
ao_poly
ao_scheme_do_led(struct ao_scheme_cons *cons)
{
int32_t led;
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 1, 1))
- return AO_SCHEME_NIL;
- led = ao_scheme_arg_int(_ao_scheme_atom_led, cons, 0);
- if (ao_scheme_exception)
+ if (!ao_scheme_parse_args(_ao_scheme_atom_led, cons,
+ AO_SCHEME_INT, &led,
+ AO_SCHEME_ARG_END))
return AO_SCHEME_NIL;
- led = ao_scheme_arg(cons, 0);
- ao_scheme_os_led(ao_scheme_poly_int(led));
- return led;
+ ao_scheme_os_led(led);
+ return _ao_scheme_bool_true;
}
-ao_poly
-ao_scheme_do_delay(struct ao_scheme_cons *cons)
-{
- int32_t delay;
-
- if (!ao_scheme_check_argc(_ao_scheme_atom_delay, cons, 1, 1))
- return AO_SCHEME_NIL;
- delay = ao_scheme_arg_int(_ao_scheme_atom_delay, cons, 0);
- if (ao_scheme_exception)
- return AO_SCHEME_NIL;
- ao_scheme_os_delay(delay);
- return delay;
-}
+#endif
ao_poly
ao_scheme_do_eval(struct ao_scheme_cons *cons)
{
- if (!ao_scheme_check_argc(_ao_scheme_atom_eval, cons, 1, 1))
+ ao_poly expr;
+ ao_poly env;
+
+ if (!ao_scheme_parse_args(_ao_scheme_atom_eval, cons,
+ AO_SCHEME_POLY, &expr,
+ AO_SCHEME_POLY|AO_SCHEME_ARG_OPTIONAL, AO_SCHEME_NIL, &env,
+ AO_SCHEME_ARG_END))
return AO_SCHEME_NIL;
ao_scheme_stack->state = eval_sexpr;
- return cons->car;
+ ao_scheme_stack->frame = AO_SCHEME_NIL;
+ ao_scheme_frame_current = NULL;
+ return expr;
}
ao_poly
ao_scheme_do_apply(struct ao_scheme_cons *cons)
{
- if (!ao_scheme_check_argc(_ao_scheme_atom_apply, cons, 2, INT_MAX))
- return AO_SCHEME_NIL;
ao_scheme_stack->state = eval_apply;
return ao_scheme_cons_poly(cons);
}
ao_poly
ao_scheme_do_read(struct ao_scheme_cons *cons)
{
- if (!ao_scheme_check_argc(_ao_scheme_atom_read, cons, 0, 0))
+ FILE *file = stdin;
+#ifndef AO_SCHEME_FEATURE_PORT
+ ao_poly port;
+ if (!ao_scheme_parse_args(_ao_scheme_atom_read, cons,
+ AO_SCHEME_POLY|AO_SCHEME_ARG_OPTIONAL, AO_SCHEME_NIL, &port,
+ AO_SCHEME_ARG_END))
+ return AO_SCHEME_NIL;
+#else
+ struct ao_scheme_port *port;
+
+ if (!ao_scheme_parse_args(_ao_scheme_atom_read, cons,
+ AO_SCHEME_PORT|AO_SCHEME_ARG_OPTIONAL, AO_SCHEME_NIL, &port,
+ AO_SCHEME_ARG_END))
return AO_SCHEME_NIL;
- return ao_scheme_read();
+ if (port) {
+ file = port->file;
+ if (!file)
+ return _ao_scheme_atom_eof;
+ }
+#endif
+ return ao_scheme_read(file);
}
ao_poly
ao_poly
ao_scheme_do_nullp(struct ao_scheme_cons *cons)
{
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 1, 1))
+ ao_poly val;
+
+ if (!ao_scheme_parse_args(_ao_scheme_atom_not, cons,
+ AO_SCHEME_POLY, &val,
+ AO_SCHEME_ARG_END))
return AO_SCHEME_NIL;
- if (ao_scheme_arg(cons, 0) == AO_SCHEME_NIL)
+ if (val == AO_SCHEME_NIL)
return _ao_scheme_bool_true;
else
return _ao_scheme_bool_false;
ao_poly
ao_scheme_do_not(struct ao_scheme_cons *cons)
{
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 1, 1))
+ ao_poly val;
+
+ if (!ao_scheme_parse_args(_ao_scheme_atom_not, cons,
+ AO_SCHEME_POLY, &val,
+ AO_SCHEME_ARG_END))
return AO_SCHEME_NIL;
- if (ao_scheme_arg(cons, 0) == _ao_scheme_bool_false)
+ if (val == _ao_scheme_bool_false)
return _ao_scheme_bool_true;
else
return _ao_scheme_bool_false;
}
-static ao_poly
-ao_scheme_do_typep(int type, struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (ao_scheme_poly_type(ao_scheme_arg(cons, 0)) == type)
- return _ao_scheme_bool_true;
- return _ao_scheme_bool_false;
-}
-
-ao_poly
-ao_scheme_do_pairp(struct ao_scheme_cons *cons)
-{
- ao_poly v;
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 1, 1))
- return AO_SCHEME_NIL;
- v = ao_scheme_arg(cons, 0);
- if (ao_scheme_is_pair(v))
- return _ao_scheme_bool_true;
- return _ao_scheme_bool_false;
-}
-
ao_poly
-ao_scheme_do_integerp(struct ao_scheme_cons *cons)
+ao_scheme_do_typep(ao_poly proc, int type, struct ao_scheme_cons *cons)
{
-#ifdef AO_SCHEME_FEATURE_BIGINT
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 1, 1))
- return AO_SCHEME_NIL;
- switch (ao_scheme_poly_type(ao_scheme_arg(cons, 0))) {
- case AO_SCHEME_INT:
- case AO_SCHEME_BIGINT:
- return _ao_scheme_bool_true;
- default:
- return _ao_scheme_bool_false;
- }
-#else
- return ao_scheme_do_typep(AO_SCHEME_INT, cons);
-#endif
-}
+ ao_poly val;
-ao_poly
-ao_scheme_do_numberp(struct ao_scheme_cons *cons)
-{
-#if defined(AO_SCHEME_FEATURE_BIGINT) || defined(AO_SCHEME_FEATURE_FLOAT)
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 1, 1))
+ if (!ao_scheme_parse_args(proc, cons,
+ AO_SCHEME_POLY, &val,
+ AO_SCHEME_ARG_END))
return AO_SCHEME_NIL;
- switch (ao_scheme_poly_type(ao_scheme_arg(cons, 0))) {
- case AO_SCHEME_INT:
-#ifdef AO_SCHEME_FEATURE_BIGINT
- case AO_SCHEME_BIGINT:
-#endif
-#ifdef AO_SCHEME_FEATURE_FLOAT
- case AO_SCHEME_FLOAT:
-#endif
+ if (ao_scheme_poly_type(val) == type)
return _ao_scheme_bool_true;
- default:
- return _ao_scheme_bool_false;
- }
-#else
- return ao_scheme_do_integerp(cons);
-#endif
-}
-
-ao_poly
-ao_scheme_do_stringp(struct ao_scheme_cons *cons)
-{
- return ao_scheme_do_typep(AO_SCHEME_STRING, cons);
-}
-
-ao_poly
-ao_scheme_do_symbolp(struct ao_scheme_cons *cons)
-{
- return ao_scheme_do_typep(AO_SCHEME_ATOM, cons);
-}
-
-ao_poly
-ao_scheme_do_booleanp(struct ao_scheme_cons *cons)
-{
- return ao_scheme_do_typep(AO_SCHEME_BOOL, cons);
+ return _ao_scheme_bool_false;
}
ao_poly
ao_scheme_do_procedurep(struct ao_scheme_cons *cons)
{
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 1, 1))
+ ao_poly val;
+
+ if (!ao_scheme_parse_args(_ao_scheme_atom_pair3f, cons,
+ AO_SCHEME_POLY, &val,
+ AO_SCHEME_ARG_END))
return AO_SCHEME_NIL;
- switch (ao_scheme_poly_type(ao_scheme_arg(cons, 0))) {
+ switch (ao_scheme_poly_type(val)) {
case AO_SCHEME_BUILTIN:
case AO_SCHEME_LAMBDA:
return _ao_scheme_bool_true;
default:
- return _ao_scheme_bool_false;
- }
-}
-
-/* This one is special -- a list is either nil or
- * a 'proper' list with only cons cells
- */
-ao_poly
-ao_scheme_do_listp(struct ao_scheme_cons *cons)
-{
- ao_poly v;
- if (!ao_scheme_check_argc(_ao_scheme_atom_list3f, cons, 1, 1))
- return AO_SCHEME_NIL;
- v = ao_scheme_arg(cons, 0);
- for (;;) {
- if (v == AO_SCHEME_NIL)
- return _ao_scheme_bool_true;
- if (!ao_scheme_is_cons(v))
- return _ao_scheme_bool_false;
- v = ao_scheme_poly_cons(v)->cdr;
+ return _ao_scheme_bool_false;
}
}
-ao_poly
-ao_scheme_do_set_car(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 2, 2))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_led, cons, 0, AO_SCHEME_CONS, 0))
- return AO_SCHEME_NIL;
- return ao_scheme_poly_cons(ao_scheme_arg(cons, 0))->car = ao_scheme_arg(cons, 1);
-}
-
-ao_poly
-ao_scheme_do_set_cdr(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 2, 2))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_led, cons, 0, AO_SCHEME_CONS, 0))
- return AO_SCHEME_NIL;
- return ao_scheme_poly_cons(ao_scheme_arg(cons, 0))->cdr = ao_scheme_arg(cons, 1);
-}
-
-ao_poly
-ao_scheme_do_symbol_to_string(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_led, cons, 0, AO_SCHEME_ATOM, 0))
- return AO_SCHEME_NIL;
- return ao_scheme_string_poly(ao_scheme_atom_to_string(ao_scheme_poly_atom(ao_scheme_arg(cons, 0))));
-}
-
-ao_poly
-ao_scheme_do_string_to_symbol(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_led, cons, 0, AO_SCHEME_STRING, 0))
- return AO_SCHEME_NIL;
-
- return ao_scheme_atom_poly(ao_scheme_string_to_atom(ao_scheme_poly_string(ao_scheme_arg(cons, 0))));;
-}
-
ao_poly
ao_scheme_do_read_char(struct ao_scheme_cons *cons)
{
int c;
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 0, 0))
+#ifndef AO_SCHEME_FEATURE_PORT
+ ao_poly port;
+ if (!ao_scheme_parse_args(_ao_scheme_atom_read2dchar, cons,
+ AO_SCHEME_POLY|AO_SCHEME_ARG_OPTIONAL, AO_SCHEME_NIL, &port,
+ AO_SCHEME_ARG_END))
return AO_SCHEME_NIL;
c = getchar();
- return ao_scheme_int_poly(c);
+#else
+ struct ao_scheme_port *port;
+
+ if (!ao_scheme_parse_args(_ao_scheme_atom_read2dchar, cons,
+ AO_SCHEME_PORT|AO_SCHEME_ARG_OPTIONAL, AO_SCHEME_NIL, &port,
+ AO_SCHEME_ARG_END))
+ return AO_SCHEME_NIL;
+ if (port)
+ c = ao_scheme_port_getc(port);
+ else
+ c = getchar();
+#endif
+ if (c == EOF)
+ return _ao_scheme_atom_eof;
+ return ao_scheme_integer_poly(c);
}
ao_poly
ao_scheme_do_write_char(struct ao_scheme_cons *cons)
{
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_led, cons, 0, AO_SCHEME_INT, 0))
+ int32_t c;
+#ifndef AO_SCHEME_FEATURE_PORT
+ ao_poly port;
+ if (!ao_scheme_parse_args(_ao_scheme_atom_write2dchar, cons,
+ AO_SCHEME_INT, &c,
+ AO_SCHEME_POLY|AO_SCHEME_ARG_OPTIONAL, AO_SCHEME_NIL, &port,
+ AO_SCHEME_ARG_END))
return AO_SCHEME_NIL;
- putchar(ao_scheme_poly_integer(ao_scheme_arg(cons, 0), NULL));
+ putchar(c);
+#else
+ struct ao_scheme_port *port;
+ if (!ao_scheme_parse_args(_ao_scheme_atom_write2dchar, cons,
+ AO_SCHEME_INT, &c,
+ AO_SCHEME_PORT|AO_SCHEME_ARG_OPTIONAL, AO_SCHEME_NIL, &port,
+ AO_SCHEME_ARG_END))
+ return AO_SCHEME_NIL;
+ if (port)
+ ao_scheme_port_putc(port, c);
+ else
+ putchar(c);
+#endif
return _ao_scheme_bool_true;
}
ao_poly
ao_scheme_do_exit(struct ao_scheme_cons *cons)
{
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 0, 0))
+ ao_poly val;
+
+ if (!ao_scheme_parse_args(_ao_scheme_atom_exit, cons,
+ AO_SCHEME_POLY|AO_SCHEME_ARG_OPTIONAL, _ao_scheme_bool_true, &val,
+ AO_SCHEME_ARG_END))
return AO_SCHEME_NIL;
ao_scheme_exception |= AO_SCHEME_EXIT;
- return _ao_scheme_bool_true;
+ return val;
}
+#ifdef AO_SCHEME_FEATURE_TIME
+
ao_poly
ao_scheme_do_current_jiffy(struct ao_scheme_cons *cons)
{
- int jiffy;
-
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 0, 0))
+ if (!ao_scheme_parse_args(_ao_scheme_atom_current2djiffy, cons,
+ AO_SCHEME_ARG_END))
return AO_SCHEME_NIL;
- jiffy = ao_scheme_os_jiffy();
- return (ao_scheme_int_poly(jiffy));
+ return ao_scheme_integer_poly(ao_scheme_os_jiffy());
}
ao_poly
-ao_scheme_do_current_second(struct ao_scheme_cons *cons)
+ao_scheme_do_jiffies_per_second(struct ao_scheme_cons *cons)
{
- int second;
-
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 0, 0))
+ if (!ao_scheme_parse_args(_ao_scheme_atom_jiffies2dper2dsecond, cons,
+ AO_SCHEME_ARG_END))
return AO_SCHEME_NIL;
- second = ao_scheme_os_jiffy() / AO_SCHEME_JIFFIES_PER_SECOND;
- return (ao_scheme_int_poly(second));
+ return ao_scheme_integer_poly(AO_SCHEME_JIFFIES_PER_SECOND);
}
ao_poly
-ao_scheme_do_jiffies_per_second(struct ao_scheme_cons *cons)
+ao_scheme_do_delay(struct ao_scheme_cons *cons)
{
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 0, 0))
+ int32_t delay;
+
+ if (!ao_scheme_parse_args(_ao_scheme_atom_delay, cons,
+ AO_SCHEME_INT, &delay,
+ AO_SCHEME_ARG_END))
return AO_SCHEME_NIL;
- return (ao_scheme_int_poly(AO_SCHEME_JIFFIES_PER_SECOND));
+ ao_scheme_os_delay(delay);
+ return cons->car;
}
+#endif
-#ifdef AO_SCHEME_FEATURE_VECTOR
+#ifdef AO_SCHEME_FEATURE_POSIX
-ao_poly
-ao_scheme_do_vector(struct ao_scheme_cons *cons)
+#include <unistd.h>
+
+static char **ao_scheme_argv;
+
+void
+ao_scheme_set_argv(char **argv)
{
- return ao_scheme_vector_poly(ao_scheme_list_to_vector(cons));
+ ao_scheme_argv = argv;
}
ao_poly
-ao_scheme_do_make_vector(struct ao_scheme_cons *cons)
+ao_scheme_do_command_line(struct ao_scheme_cons *cons)
{
- int32_t k;
+ ao_poly args = AO_SCHEME_NIL;
+ ao_poly arg;
+ int i;
- if (!ao_scheme_check_argc(_ao_scheme_atom_make2dvector, cons, 1, 2))
+ if (!ao_scheme_parse_args(_ao_scheme_atom_command2dline, cons,
+ AO_SCHEME_ARG_END))
return AO_SCHEME_NIL;
- k = ao_scheme_arg_int(_ao_scheme_atom_make2dvector, cons, 0);
- if (ao_scheme_exception)
- return AO_SCHEME_NIL;
- return ao_scheme_vector_poly(ao_scheme_vector_alloc(k, ao_scheme_opt_arg(cons, 1, _ao_scheme_bool_false)));
-}
-ao_poly
-ao_scheme_do_vector_ref(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_vector2dref, cons, 2, 2))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_vector2dref, cons, 0, AO_SCHEME_VECTOR, 0))
- return AO_SCHEME_NIL;
- return ao_scheme_vector_get(ao_scheme_arg(cons, 0), ao_scheme_arg(cons, 1));
+ for (i = 0; ao_scheme_argv[i]; i++);
+
+ while (--i >= 0) {
+ ao_scheme_poly_stash(args);
+ arg = ao_scheme_string_poly(ao_scheme_string_new(ao_scheme_argv[i]));
+ args = ao_scheme_poly_fetch();
+ if (!arg)
+ return AO_SCHEME_NIL;
+ args = ao_scheme_cons(arg, args);
+ if (!args)
+ return AO_SCHEME_NIL;
+ }
+ return args;
}
ao_poly
-ao_scheme_do_vector_set(struct ao_scheme_cons *cons)
+ao_scheme_do_get_environment_variables(struct ao_scheme_cons *cons)
{
- if (!ao_scheme_check_argc(_ao_scheme_atom_vector2dset21, cons, 3, 3))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_vector2dset21, cons, 0, AO_SCHEME_VECTOR, 0))
+ ao_poly envs = AO_SCHEME_NIL;
+ ao_poly env;
+ int i;
+
+ if (!ao_scheme_parse_args(_ao_scheme_atom_get2denvironment2dvariables, cons,
+ AO_SCHEME_ARG_END))
return AO_SCHEME_NIL;
- return ao_scheme_vector_set(ao_scheme_arg(cons, 0), ao_scheme_arg(cons, 1), ao_scheme_arg(cons, 2));
+ for (i = 0; environ[i]; i++);
+
+ while (--i >= 0) {
+ ao_scheme_poly_stash(envs);
+ env = ao_scheme_string_poly(ao_scheme_string_new(environ[i]));
+ envs = ao_scheme_poly_fetch();
+ if (!env)
+ return AO_SCHEME_NIL;
+ envs = ao_scheme_cons(env, envs);
+ if (!envs)
+ return AO_SCHEME_NIL;
+ }
+ return envs;
}
ao_poly
-ao_scheme_do_list_to_vector(struct ao_scheme_cons *cons)
+ao_scheme_do_get_environment_variable(struct ao_scheme_cons *cons)
{
- if (!ao_scheme_check_argc(_ao_scheme_atom_list2d3evector, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_list2d3evector, cons, 0, AO_SCHEME_CONS, 0))
+ struct ao_scheme_string *name;
+ char *val;
+
+ if (!ao_scheme_parse_args(_ao_scheme_atom_get2denvironment2dvariable, cons,
+ AO_SCHEME_STRING, &name,
+ AO_SCHEME_ARG_END))
return AO_SCHEME_NIL;
- return ao_scheme_vector_poly(ao_scheme_list_to_vector(ao_scheme_poly_cons(ao_scheme_arg(cons, 0))));
+ val = secure_getenv(name->val);
+ if (!val)
+ return _ao_scheme_bool_false;
+ return ao_scheme_string_poly(ao_scheme_string_new(val));
}
ao_poly
-ao_scheme_do_vector_to_list(struct ao_scheme_cons *cons)
+ao_scheme_do_file_existsp(struct ao_scheme_cons *cons)
{
- int start, end;
+ struct ao_scheme_string *name;
- if (!ao_scheme_check_argc(_ao_scheme_atom_vector2d3elist, cons, 1, 3))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_vector2d3elist, cons, 0, AO_SCHEME_VECTOR, 0))
- return AO_SCHEME_NIL;
- start = ao_scheme_opt_arg_int(_ao_scheme_atom_vector2d3elist, cons, 1, ao_scheme_int_poly(0));
- if (ao_scheme_exception)
+ if (!ao_scheme_parse_args(_ao_scheme_atom_file2dexists3f, cons,
+ AO_SCHEME_STRING, &name,
+ AO_SCHEME_ARG_END))
return AO_SCHEME_NIL;
- end = ao_scheme_opt_arg_int(_ao_scheme_atom_vector2d3elist, cons, 2, ao_scheme_int_poly(-1));
- if (ao_scheme_exception)
- return AO_SCHEME_NIL;
- return ao_scheme_cons_poly(ao_scheme_vector_to_list(ao_scheme_poly_vector(ao_scheme_arg(cons, 0)),
- start,
- end));
+ if (access(name->val, F_OK) == 0)
+ return _ao_scheme_bool_true;
+ return _ao_scheme_bool_false;
}
ao_poly
-ao_scheme_do_vector_length(struct ao_scheme_cons *cons)
+ao_scheme_do_delete_file(struct ao_scheme_cons *cons)
{
- if (!ao_scheme_check_argc(_ao_scheme_atom_vector2d3elist, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_vector2d3elist, cons, 0, AO_SCHEME_VECTOR, 0))
+ struct ao_scheme_string *name;
+
+ if (!ao_scheme_parse_args(_ao_scheme_atom_delete2dfile, cons,
+ AO_SCHEME_STRING, &name,
+ AO_SCHEME_ARG_END))
return AO_SCHEME_NIL;
- return ao_scheme_integer_poly(ao_scheme_poly_vector(ao_scheme_arg(cons, 0))->length);
+ if (unlink(name->val) == 0)
+ return _ao_scheme_bool_true;
+ return _ao_scheme_bool_false;
}
ao_poly
-ao_scheme_do_vectorp(struct ao_scheme_cons *cons)
+ao_scheme_do_current_second(struct ao_scheme_cons *cons)
{
- return ao_scheme_do_typep(AO_SCHEME_VECTOR, cons);
+ int32_t second;
+
+ if (!ao_scheme_parse_args(_ao_scheme_atom_current2dsecond, cons,
+ AO_SCHEME_ARG_END))
+ return AO_SCHEME_NIL;
+ second = (int32_t) time(NULL);
+ return ao_scheme_integer_poly(second);
}
-#endif /* AO_SCHEME_FEATURE_VECTOR */
+#endif /* AO_SCHEME_FEATURE_POSIX */
#define AO_SCHEME_BUILTIN_FUNCS
#include "ao_scheme_builtin.h"
projects / fw / altos / blobdiff