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BEGIN { |
BEGIN { |
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use Exporter (); |
use Exporter (); |
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use vars qw ($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS); |
use vars qw ($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS); |
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$VERSION = 0.14; |
$VERSION = 0.22_2; |
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@ISA = qw (Exporter); |
@ISA = qw (Exporter); |
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#Give a hoot don't pollute, do not export more than needed by default |
#Give a hoot don't pollute, do not export more than needed by default |
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@EXPORT = qw (); |
@EXPORT = qw (); |
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$v =~ s#foo#bar#g; |
$v =~ s#foo#bar#g; |
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}, |
}, |
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debug => 1, |
debug => 1, |
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join_subfields_with => ' ; ', |
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regexps => [ |
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's/something/else/g', |
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], |
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); |
); |
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Options are described below: |
Options are described below: |
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=item debug |
=item debug |
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Dump a B<lot> of debugging output. |
Dump a B<lot> of debugging output even at level 1. For even more increase level. |
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=item join_subfields_with |
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Define delimiter which will be used to join repeatable subfields. This |
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option is included to support lagacy application written against version |
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older than 0.21 of this module. By default, it disabled. See L</to_hash>. |
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=item regexpes |
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Define (any number) of regexpes to apply at field values before they are |
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splitted into subfield. This is great place to split subfields in input to |
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mulitple subfields if needed or rename subfields. |
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=back |
=back |
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|
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return $self->{'record'}; |
return $self->{'record'}; |
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} |
} |
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=head2 mfn |
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Returns current MFN position |
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my $mfn = $isis->mfn; |
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=cut |
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# This function should be simple return $self->{current_mfn}, |
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# but if new is called with _hack_mfn it becomes setter. |
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# It's useful in tests when setting $isis->{record} directly |
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sub mfn { |
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my $self = shift; |
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return $self->{current_mfn}; |
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}; |
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=head2 to_ascii |
=head2 to_ascii |
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Returns ASCII output of record with specified MFN |
Returns ASCII output of record with specified MFN |
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} |
} |
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], |
], |
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|
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In case there are repeatable subfields in record, this will create |
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following structure: |
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'900' => [ { |
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'a' => [ 'foo', 'bar', 'baz' ], |
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}] |
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Or in more complex example of |
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902 ^aa1^aa2^aa3^bb1^aa4^bb2^cc1^aa5 |
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|
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it will create |
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|
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902 => [ |
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{ a => ["a1", "a2", "a3", "a4", "a5"], b => ["b1", "b2"], c => "c1" }, |
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], |
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This behaviour can be changed using C<join_subfields_with> option to L</new>, |
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in which case C<to_hash> will always create single value for each subfield. |
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This will change result to: |
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This method will also create additional field C<000> with MFN. |
This method will also create additional field C<000> with MFN. |
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|
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There is also more elaborative way to call C<to_hash> like this: |
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|
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my $hash = $isis->to_hash({ |
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mfn => 42, |
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include_subfields => 1, |
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regexps => [ |
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's/something/else/g', |
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], |
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}); |
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Each option controll creation of hash: |
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=over 4 |
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=item mfn |
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Specify MFN number of record |
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=item include_subfields |
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|
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This option will create additional key in hash called C<subfields> which will |
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have original record subfield order and index to that subfield like this: |
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|
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902 => [ { |
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a => ["a1", "a2", "a3", "a4", "a5"], |
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b => ["b1", "b2"], |
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c => "c1", |
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subfields => ["a", 0, "a", 1, "a", 2, "b", 0, "a", 3, "b", 1, "c", 0, "a", 4], |
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} ], |
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=item join_subfields_with |
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|
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Define delimiter which will be used to join repeatable subfields. You can |
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specify option here instead in L</new> if you want to have per-record control. |
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=item regexpes |
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Override C<regexpes> specified in L</new>. |
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=back |
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=cut |
=cut |
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sub to_hash { |
sub to_hash { |
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my $self = shift; |
my $self = shift; |
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|
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my $mfn = shift || confess "need mfn!"; |
my $mfn = shift || confess "need mfn!"; |
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my $arg; |
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|
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if (ref($mfn) eq 'HASH') { |
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$arg = $mfn; |
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$mfn = $arg->{mfn} || confess "need mfn in arguments"; |
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} |
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$arg->{regexpes} ||= $self->{regexpes}; |
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confess "regexps must be HASH" if ($arg->{regexps} && ref($arg->{regexps}) ne 'HASH'); |
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|
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# init record to include MFN as field 000 |
# init record to include MFN as field 000 |
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my $rec = { '000' => [ $mfn ] }; |
my $rec = { '000' => [ $mfn ] }; |
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|
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my $row = $self->fetch($mfn) || return; |
my $row = $self->fetch($mfn) || return; |
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|
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foreach my $k (keys %{$row}) { |
my $j_rs = $arg->{join_subfields_with}; |
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foreach my $l (@{$row->{$k}}) { |
$j_rs = $self->{join_subfields_with} unless(defined($j_rs)); |
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my $i_sf = $arg->{include_subfields}; |
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|
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foreach my $f_nr (keys %{$row}) { |
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foreach my $l (@{$row->{$f_nr}}) { |
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|
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# filter output |
# filter output |
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if ($self->{'hash_filter'}) { |
if ($self->{'hash_filter'}) { |
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next unless defined($l); |
next unless defined($l); |
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} |
} |
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|
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# apply regexps |
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if ($arg->{regexps} && defined($arg->{regexps}->{$f_nr})) { |
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confess "regexps->{$f_nr} must be ARRAY" if (ref($arg->{regexps}->{$f_nr}) ne 'ARRAY'); |
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my $c = 0; |
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foreach my $r (@{ $arg->{regexps}->{$f_nr} }) { |
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while ( eval '$l =~ ' . $r ) { $c++ }; |
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} |
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warn "## field $f_nr triggered $c regexpes\n" if ($c && $self->{debug}); |
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} |
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|
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my $val; |
my $val; |
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my $r_sf; # repeatable subfields in this record |
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|
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# has identifiers? |
# has identifiers? |
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($val->{'i1'},$val->{'i2'}) = ($1,$2) if ($l =~ s/^([01 #])([01 #])\^/\^/); |
($val->{'i1'},$val->{'i2'}) = ($1,$2) if ($l =~ s/^([01 #])([01 #])\^/\^/); |
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if ($l =~ m/\^/) { |
if ($l =~ m/\^/) { |
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foreach my $t (split(/\^/,$l)) { |
foreach my $t (split(/\^/,$l)) { |
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next if (! $t); |
next if (! $t); |
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$val->{substr($t,0,1)} = substr($t,1); |
my ($sf,$v) = (substr($t,0,1), substr($t,1)); |
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# XXX this might be option, but why? |
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next unless ($v); |
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# warn "### $f_nr^$sf:$v",$/ if ($self->{debug} > 1); |
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if (ref( $val->{$sf} ) eq 'ARRAY') { |
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push @{ $val->{$sf} }, $v; |
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# record repeatable subfield it it's offset |
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push @{ $val->{subfields} }, ( $sf, $#{ $val->{$sf} } ) if (! $j_rs && $i_sf); |
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$r_sf->{$sf}++; |
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|
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} elsif (defined( $val->{$sf} )) { |
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|
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# convert scalar field to array |
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$val->{$sf} = [ $val->{$sf}, $v ]; |
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|
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push @{ $val->{subfields} }, ( $sf, 1 ) if (! $j_rs && $i_sf); |
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$r_sf->{$sf}++; |
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|
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} else { |
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$val->{$sf} = $v; |
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push @{ $val->{subfields} }, ( $sf, 0 ) if ($i_sf); |
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} |
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} |
} |
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} else { |
} else { |
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$val = $l; |
$val = $l; |
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} |
} |
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|
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push @{$rec->{$k}}, $val; |
if ($j_rs) { |
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map { |
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$val->{$_} = join($j_rs, @{ $val->{$_} }); |
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} keys %$r_sf |
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} |
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|
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push @{$rec->{$f_nr}}, $val; |
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} |
} |
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} |
} |
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|
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tested this against ouput of one C<isis.dll>-based application, but I don't |
tested this against ouput of one C<isis.dll>-based application, but I don't |
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know any details about it's version. |
know any details about it's version. |
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|
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|
=head1 VERSIONS |
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|
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As this is young module, new features are added in subsequent version. It's |
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a good idea to specify version when using this module like this: |
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|
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use Biblio::Isis 0.21 |
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|
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Below is list of changes in specific version of module (so you can target |
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older versions if you really have to): |
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|
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=over 8 |
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|
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=item 0.21 |
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|
786 |
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Added C<join_subfields_with> to L</new> and L</to_hash>. |
787 |
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|
788 |
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Added C<include_subfields> to L</to_hash>. |
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|
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=item 0.20 |
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|
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Added C<< $isis->mfn >>, support for repeatable subfields and |
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C<< $isis->to_hash({ mfn => 42, ... }) >> calling convention |
794 |
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|
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=back |
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|
797 |
=head1 AUTHOR |
=head1 AUTHOR |
798 |
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|
799 |
Dobrica Pavlinusic |
Dobrica Pavlinusic |
815 |
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|
816 |
=head1 SEE ALSO |
=head1 SEE ALSO |
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|
818 |
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L<Biblio::Isis::Manual> for CDS/ISIS manual appendix F, G and H which describe file format |
819 |
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|
820 |
OpenIsis web site L<http://www.openisis.org> |
OpenIsis web site L<http://www.openisis.org> |
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|
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perl4lib site L<http://perl4lib.perl.org> |
perl4lib site L<http://perl4lib.perl.org> |