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来自「UNIX下perl实现代码」· 代码 · 共 42 行

#
#################################### DBM SECTION
#

datum_key		T_DATUM_K
datum_value		T_DATUM_V
gdatum			T_GDATUM
NDBM_File		T_PTROBJ
GDBM_File		T_PTROBJ
SDBM_File		T_PTROBJ
ODBM_File		T_PTROBJ
DB_File			T_PTROBJ
DBZ_File		T_PTROBJ
FATALFUNC		T_OPAQUEPTR

INPUT
T_DATUM_K
	ckFilter($arg, filter_store_key, \"filter_store_key\");
	$var.dptr = SvPV($arg, PL_na);
	$var.dsize = (int)PL_na;
T_DATUM_V
        ckFilter($arg, filter_store_value, \"filter_store_value\");
	if (SvOK($arg)) {
	    $var.dptr = SvPV($arg, PL_na);
	    $var.dsize = (int)PL_na;
	}
	else {
	    $var.dptr = \"\";
	    $var.dsize = 0;
	}
T_GDATUM
	UNIMPLEMENTED
OUTPUT
T_DATUM_K
	sv_setpvn($arg, $var.dptr, $var.dsize);
	ckFilter($arg, filter_fetch_key,\"filter_fetch_key\");
T_DATUM_V
	sv_setpvn($arg, $var.dptr, $var.dsize);
	ckFilter($arg, filter_fetch_value,\"filter_fetch_value\");
T_GDATUM
	sv_usepvn($arg, $var.dptr, $var.dsize);