///
virtual bool backspace() {
// cancel the second deadkey
deadkey2_ = 0;
deadkey2_info_.accent = TEX_NOACCENT;
currentState = deadkey_state_;
///
virtual bool backspace() {
// cancel the second deadkey
deadkey2_ = 0;
deadkey2_info_.accent = TEX_NOACCENT;
currentState = deadkey_state_;