static const cst_val *ph_cvox(const cst_item *p) { return phone_feature(item_phoneset(p),item_name(p),"cvox"); }
const char *phone_feature_string(const cst_phoneset *ps, const char* phonename, const char *featname) { return val_string(phone_feature(ps,phonename,featname)); }
static const cst_val *ph_vfront(const cst_item *p) { return phone_feature(item_phoneset(p),item_name(p),"vfront"); }