U8_COMBINING_CLASS_STARTER
comb_class[i] == U8_COMBINING_CLASS_STARTER)
if (i >= last || comb_class[i] != U8_COMBINING_CLASS_STARTER) {
if (comb_class[i] == U8_COMBINING_CLASS_STARTER) {
if (comb_class[last] == U8_COMBINING_CLASS_STARTER) {
if (i == U8_COMBINING_CLASS_STARTER)