9 int eval_expr(lua_State *, char *);
\r
10 int has_table(lua_State *, char *);
\r
11 char *string_expr(lua_State *, char *, char *);
\r
12 double double_expr(lua_State *, char *, double);
\r
13 int int_expr(lua_State *, char *, int);
\r
14 bool bool_expr(lua_State *, char *, bool);
\r