c_insert
c_insert(el, (int)len);
protected void c_insert(EditLine *, int);
c_insert(el, 1);
c_insert(el, el->el_state.argument);
c_insert(el,
c_insert(el, (int)(oldc - cp));
c_insert(el, len + 1);
c_insert(el, (int)len);
c_insert(el, 1);