use IsisDB module instead of OpenIsis -- this will fix various problems in

[webpac] / marc_sf.pm

#
# marc_sf($marc,'field'[,'subfield'])
#
# e.g. marc_sf($row,'700','a')
#
sub marc_sf {
        my $marc = shift @_ || die "marc_sf: needs record";
        my $f = shift @_ || die "marc_sf: needs field name";
        my $s = shift @_;

        my $i = shift @_ || 0;

        my @out;
        if ($s) {
                @out = $marc->subfield($f,$s);
        } else {
                @out = $marc->field($f)->as_string() if ($marc->field($f));
        }

        return $out[$i] if (@out && $out[$i]);
}

1;