1 |
# |
2 |
# isis_sf($isis_row,'isis_field'[,'subfield']) |
3 |
# |
4 |
# e.g. isis_sf($row,'700','a') |
5 |
# |
6 |
sub isis_sf { |
7 |
my $row = shift @_; |
8 |
my $isis_id = shift @_; |
9 |
my $subfield = shift @_; |
10 |
|
11 |
my $i = shift @_ || 0; |
12 |
|
13 |
my $out; |
14 |
|
15 |
if ($row->{$isis_id}->[$i]) { |
16 |
my $sf = OpenIsis::subfields($row->{$isis_id}->[$i]); |
17 |
if (! defined $subfield || length($subfield) == 0) { |
18 |
# subfield list undef, empty or no defined subfields for this record |
19 |
my $all_sf = $row->{$isis_id}->[$i]; |
20 |
$all_sf =~ s/\^./ /g; # nuke definitions |
21 |
return $all_sf; |
22 |
} elsif ($sf->{$subfield}) { |
23 |
return $sf->{$subfield}; |
24 |
} |
25 |
} |
26 |
} |
27 |
|
28 |
1; |
29 |
|