_ISPRINT
ctn->ctype |= (_ISUPPER | _ISALPHA | _ISGRAPH | _ISPRINT);
ctn->ctype |= (_ISLOWER | _ISALPHA | _ISGRAPH | _ISPRINT);
ctn->ctype |= (_ISALPHA | _ISGRAPH | _ISPRINT);
ctn->ctype |= (_ISDIGIT | _ISGRAPH | _ISPRINT | _ISXDIGIT | _E4);
ctn->ctype |= (_ISSPACE | _ISPRINT);
ctn->ctype |= (_ISGRAPH | _ISPRINT);
ctn->ctype |= _ISPRINT;
ctn->ctype |= (_ISPUNCT | _ISGRAPH | _ISPRINT);
ctn->ctype |= (_ISXDIGIT | _ISPRINT);
ctn->ctype |= (_E1 | _ISPRINT | _ISGRAPH);
ctn->ctype |= (_E2 | _ISPRINT | _ISGRAPH);
ctn->ctype |= (_E3 | _ISPRINT | _ISGRAPH);
ctn->ctype |= (_E4 | _ISPRINT | _ISGRAPH);
ctn->ctype |= (_E5 | _ISPRINT | _ISGRAPH);
ctn->ctype |= _ISPRINT;
ctn->ctype |= _ISPRINT;
ctn->ctype &= ~_ISPRINT;
if ((ctn->ctype & _ISCNTRL) && (ctn->ctype & _ISPRINT))