encoding::all::whatwg::X_USER_DEFINED

pub const X_USER_DEFINED: &'static SingleByteEncoding = &codec::singlebyte::SingleByteEncoding {
                name: $name,
                whatwg_name: $whatwg,
                index_forward: $($module)::+::forward,
                index_backward: $($module)::+::backward,
            }