Add printl, car, cdr builtins

src/builtins.c

@@ -160,6 +160,13 @@ LISP_FUNC_1(ucl_builtin_print, state, arg0) {
     return ucl_nil_create();
 }
 
+LISP_FUNC_1(ucl_builtin_printl, state, arg0) {
+    ucl_print_obj(arg0);
+    printf("\n");
+
+    return ucl_nil_create();
+}
+
 struct ucl_object *ucl_builtin_list(struct ucl_state *state, struct ucl_object *args) {
     struct ucl_object *head = ucl_nil_create();
     FOREACH_LIST(args, iter, item) {

src/builtins.h

@@ -19,7 +19,10 @@ struct ucl_object *ucl_builtin_concat(struct ucl_state *state, struct ucl_object
 
 struct ucl_object *ucl_builtin_now_millis_mono(struct ucl_state *state, struct ucl_object *args);
 
+struct ucl_object *ucl_builtin_car(struct ucl_state *state, struct ucl_object *args);
+struct ucl_object *ucl_builtin_cdr(struct ucl_state *state, struct ucl_object *args);
 struct ucl_object *ucl_builtin_list(struct ucl_state *state, struct ucl_object *args);
 struct ucl_object *ucl_builtin_print(struct ucl_state *state, struct ucl_object *args);
+struct ucl_object *ucl_builtin_printl(struct ucl_state *state, struct ucl_object *args);
 
 #endif

src/main.c

@@ -25,9 +25,9 @@ int main(int argc, const char **argv) {
     //   - iteration
 
     ucl_state_put(state, "print", ucl_builtin_create(ucl_builtin_print));
+    ucl_state_put(state, "printl", ucl_builtin_create(ucl_builtin_printl));
     ucl_state_put(state, "list", ucl_builtin_create(ucl_builtin_list));
     // TODO:
-    //   - print with newline
     //   - object -> string
     //   - formatted printing?
 
@@ -47,12 +47,12 @@ int main(int argc, const char **argv) {
     ucl_state_put(state, "string-p", ucl_builtin_create(ucl_builtin_string_p));
     ucl_state_put(state, "int-p", ucl_builtin_create(ucl_builtin_int_p));
     ucl_state_put(state, "list-p", ucl_builtin_create(ucl_builtin_list_p));
+    ucl_state_put(state, "car", ucl_builtin_create(ucl_builtin_car));
+    ucl_state_put(state, "cdr", ucl_builtin_create(ucl_builtin_cdr));
     // TODO:
     //   - equality
     //   - map
     //   - reduce
-    //   - car
-    //   - cdr
     //   - nth
     //   - booleans (e.g. not)