UNI_SUR_LOW_END 177 src/utils/utf.c if (ch2 >= UNI_SUR_LOW_START && ch2 <= UNI_SUR_LOW_END) { UNI_SUR_LOW_END 193 src/utils/utf.c if (ch >= UNI_SUR_LOW_START && ch <= UNI_SUR_LOW_END) { UNI_SUR_LOW_END 341 src/utils/utf.c if (ch >= UNI_SUR_HIGH_START && ch <= UNI_SUR_LOW_END) {