static pic_value
pic_proc_for_each(pic_state *pic)
{
struct pic_proc *proc;
size_t argc;
pic_value *args;
int i;
pic_value cars;
pic_get_args(pic, "l*", &proc, &argc, &args);
do {
cars = pic_nil_value();
for (i = argc - 1; i >= 0; --i) {
if (! pic_pair_p(args[i])) {
break;
}
cars = pic_cons(pic, pic_car(pic, args[i]), cars);
args[i] = pic_cdr(pic, args[i]);
}
if (i >= 0)
break;
pic_apply(pic, proc, cars);
} while (1);
return pic_none_value();
}
static pic_value
pic_str_string_for_each(pic_state *pic)
{
struct pic_proc *proc;
size_t argc, len, i, j;
pic_value *argv, vals;
pic_get_args(pic, "l*", &proc, &argc, &argv);
if (argc == 0) {
pic_errorf(pic, "string-map: one or more strings expected, but got zero");
} else {
pic_assert_type(pic, argv[0], str);
len = pic_str_len(pic_str_ptr(argv[0]));
}
for (i = 1; i < argc; ++i) {
pic_assert_type(pic, argv[i], str);
len = len < pic_str_len(pic_str_ptr(argv[i]))
? len
: pic_str_len(pic_str_ptr(argv[i]));
}
for (i = 0; i < len; ++i) {
vals = pic_nil_value();
for (j = 0; j < argc; ++j) {
pic_push(pic, pic_char_value(pic_str_ref(pic, pic_str_ptr(argv[j]), i)), vals);
}
pic_apply(pic, proc, vals);
}
return pic_undef_value();
}
static pic_value
pic_cont_call_with_values(pic_state *pic)
{
struct pic_proc *producer, *consumer;
size_t argc;
pic_value args[256];
pic_get_args(pic, "ll", &producer, &consumer);
pic_apply(pic, producer, pic_nil_value());
argc = pic_receive(pic, 256, args);
return pic_apply_trampoline(pic, consumer, pic_list_by_array(pic, argc, args));
}
static pic_value
pic_proc_apply(pic_state *pic)
{
struct pic_proc *proc;
pic_value *args;
size_t argc;
pic_get_args(pic, "l*", &proc, &argc, &args);
if (argc == 0) {
pic_error(pic, "apply: wrong number of arguments");
}
return pic_apply(pic, proc, pic_list_from_array(pic, argc, args));
}
static pic_value
pic_str_string_map(pic_state *pic)
{
struct pic_proc *proc;
pic_value *argv, vals, val;
size_t argc, i, len, j;
pic_str *str;
char *buf;
pic_get_args(pic, "l*", &proc, &argc, &argv);
if (argc == 0) {
pic_errorf(pic, "string-map: one or more strings expected, but got zero");
} else {
pic_assert_type(pic, argv[0], str);
len = pic_str_len(pic_str_ptr(argv[0]));
}
for (i = 1; i < argc; ++i) {
pic_assert_type(pic, argv[i], str);
len = len < pic_str_len(pic_str_ptr(argv[i]))
? len
: pic_str_len(pic_str_ptr(argv[i]));
}
buf = pic_malloc(pic, len);
pic_try {
for (i = 0; i < len; ++i) {
vals = pic_nil_value();
for (j = 0; j < argc; ++j) {
pic_push(pic, pic_char_value(pic_str_ref(pic, pic_str_ptr(argv[j]), i)), vals);
}
val = pic_apply(pic, proc, vals);
pic_assert_type(pic, val, char);
buf[i] = pic_char(val);
}
str = pic_make_str(pic, buf, len);
}
pic_catch {
pic_free(pic, buf);
pic_raise(pic, pic->err);
}
pic_free(pic, buf);
return pic_obj_value(str);
}
void
pic_load_stdlib(pic_state *pic)
{
static const char *fn = "piclib/built-in.scm";
FILE *file;
int n, i;
pic_value v, vs;
struct pic_proc *proc;
file = fopen(fn, "r");
if (file == NULL) {
fputs("fatal error: could not read built-in.scm", stderr);
abort();
}
n = pic_parse_file(pic, file, &vs);
if (n <= 0) {
fputs("fatal error: built-in.scm broken", stderr);
abort();
}
for (i = 0; i < n; ++i, vs = pic_cdr(pic, vs)) {
v = pic_car(pic, vs);
proc = pic_codegen(pic, v);
if (proc == NULL) {
fputs(pic->errmsg, stderr);
fputs("fatal error: built-in.scm compilation failure", stderr);
abort();
}
v = pic_apply(pic, proc, pic_nil_value());
if (pic_undef_p(v)) {
fputs(pic->errmsg, stderr);
fputs("fatal error: built-in.scm evaluation failure", stderr);
abort();
}
}
#if DEBUG
puts("successfully loaded stdlib");
#endif
}
