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#include <stdio.h>
#include <libguile.h>
typedef struct check_answer_args {
char *code;
char *data;
} check_answer_args;
SCM check_answer_catch_body(void *data) {
check_answer_args *args = (check_answer_args *) data;
// SCM handler = scm_c_eval_string(args->code);
// SCM res = scm_call_1(handler, scm_from_utf8_string(args->data));
SCM readport = scm_open_input_string(scm_from_utf8_string(args->code));
SCM func = scm_read(readport);
SCM call = scm_list_2(func, scm_from_utf8_string(args->data));
SCM eval = scm_c_public_ref("ice-9 sandbox", "eval-in-sandbox");
return scm_call_1(eval, call);
}
SCM check_answer_catch_handler(void *data, SCM key, SCM args) {
SCM format = scm_c_public_ref("ice-9 format", "format");
SCM fmt = scm_from_utf8_string("~a: ~a: ~a");
SCM func = scm_car(args);
SCM afmt = scm_cadr(args);
SCM aargs = scm_caddr(args);
SCM msg = scm_apply_2(format, SCM_BOOL_F, afmt, aargs);
return scm_call_5(format, SCM_BOOL_F, fmt, key, func, msg);
}
int check_answer(char **failure, char *code, char *data) {
scm_init_guile();
check_answer_args args = { .code = code, .data = data };
SCM res = scm_c_catch(
SCM_BOOL_T,
check_answer_catch_body, &args,
check_answer_catch_handler, NULL,
check_answer_catch_handler, NULL);
if (scm_is_bool(res)) {
*failure = NULL;
return scm_to_bool(res);
} else {
*failure = scm_to_utf8_stringn(res, NULL);
return 0;
}
}
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