nkf_isxdigit     4152 ext/nkf/nkf-utf8/nkf.c     if (!nkf_isxdigit(c2)){
nkf_isxdigit     4157 ext/nkf/nkf-utf8/nkf.c     if (!nkf_isxdigit(c3)){
nkf_isxdigit     4209 ext/nkf/nkf-utf8/nkf.c 		    if (!nkf_isxdigit(buf[i])){
nkf_isxdigit     6016 ext/nkf/nkf-utf8/nkf.c 			for (i = 2; i < 8 && nkf_isxdigit(p[i]); i++){