UTF_8_1_OCTET_P  1156 src/coding.c         if (c < 0 || UTF_8_1_OCTET_P (c))
UTF_8_1_OCTET_P  1341 src/coding.c         else if (UTF_8_1_OCTET_P (c1))
UTF_8_1_OCTET_P  6249 src/coding.c         if (UTF_8_1_OCTET_P (*src))
UTF_8_1_OCTET_P  6311 src/coding.c         if (! UTF_8_1_OCTET_P (*src))