static pic_value
pic_system_getenvs(pic_state *pic)
{
char **envp;
pic_value data = pic_nil_value();
size_t ai = pic_gc_arena_preserve(pic);
pic_get_args(pic, "");
if (! pic->envp) {
return pic_nil_value();
}
for (envp = pic->envp; *envp; ++envp) {
pic_str *key, *val;
size_t i;
for (i = 0; (*envp)[i] != '='; ++i)
;
key = pic_make_str(pic, *envp, i);
val = pic_make_str_cstr(pic, getenv(pic_str_cstr(key)));
/* push */
data = pic_acons(pic, pic_obj_value(key), pic_obj_value(val), data);
pic_gc_arena_restore(pic, ai);
pic_gc_protect(pic, data);
}
return data;
}
struct pic_lib *
pic_open_library(pic_state *pic, pic_value name)
{
struct pic_lib *lib;
struct pic_senv *senv;
struct pic_dict *exports;
if ((lib = pic_find_library(pic, name)) != NULL) {
#if DEBUG
printf("* reopen library: ");
pic_debug(pic, name);
puts("");
#endif
return lib;
}
senv = pic_null_syntactic_environment(pic);
exports = pic_make_dict(pic);
lib = (struct pic_lib *)pic_obj_alloc(pic, sizeof(struct pic_lib), PIC_TT_LIB);
lib->name = name;
lib->env = senv;
lib->exports = exports;
/* register! */
pic->libs = pic_acons(pic, name, pic_obj_value(lib), pic->libs);
return lib;
}
