el_read_t
struct el_read_t;
struct el_read_t *el_read; /* Character reading stuff */
el_read_setfn(struct el_read_t *el_read, el_rfunc_t rc)
el_read_getfn(struct el_read_t *el_read)
libedit_private int el_read_setfn(struct el_read_t *, el_rfunc_t);
libedit_private el_rfunc_t el_read_getfn(struct el_read_t *);