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unpack
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1992-10-18
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225 b
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13 lines
sub substr {
local($what, $where, $howmuch) = @_;
if ($where < 0) {
$where = -$where;
unpack("@* X$where a$howmuch", $what);
}
else {
unpack("x$where a$howmuch", $what);
}
}
sub signed_ord { unpack("c", $_[0]); }