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 |
if (! $subfield) { |
17 |
# subfield list undef, empty or no defined subfields for this record |
18 |
my $all_sf = $row->{$isis_id}->[$i]; |
19 |
$all_sf =~ s/\^./ /g; # nuke definitions |
20 |
return $all_sf; |
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} |
22 |
my $sf = OpenIsis::subfields($row->{$isis_id}->[$i]); |
23 |
if ($sf->{$subfield}) { |
24 |
return $sf->{$subfield}; |
25 |
} |
26 |
} |
27 |
} |
28 |
|
29 |
1; |
30 |
|