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package MARC::Detrans::Config; |
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use strict; |
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use warnings; |
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use base qw( Class::Accessor ); |
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use XML::SAX::ParserFactory; |
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use Carp qw( croak ); |
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=head1 NAME |
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MARC::Detrans::Config - Stores de-transliteration configuration data |
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=head1 SYNOPSIS |
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use MARC::Detrans::Config; |
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my $config = MARC::Detrans::Config->new( 'file.xml' ); |
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=head1 DESCRIPTION |
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MARC::Detrans::Config will read detransliteration rules from an XML file which |
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you can then use to create a MARC::Detrans::Converter object to actually convert |
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MARC records. |
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b |
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B |
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$aNicholas $bI, $cEmperor of Russia, $d1796-1855 |
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$a^ESC(NnIKOLAJ^ESCs, $bI, $c^ESC(NiMPERATOR^ESCs ^ESC(NwSEROSSIJSKIJ^ESCs, $d1796-1855 |
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=head1 METHODS |
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=head2 new() |
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The constructor, which you should pass the file path for the XML configuration. |
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If you want to configure the MARC::Detrans::Config object manually you |
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can not pass in a path, but you ordinarily wouldn't want to do this. |
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=cut |
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sub new { |
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my ( $class, $file ) = @_; |
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croak( "config file doesn't exist" ) if $file and ! -f $file; |
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my $self = bless { file => $file }, $class || $class; |
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$self->_parse( $file ); |
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return( $self ); |
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} |
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=head2 rules() |
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Returns a MARC::Detrans::Rules object that contains the transliteration |
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rules being used in the configuration. |
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=head2 names() |
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Returns a MARC::Detrans::Names object that contains the authority mappings |
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being used in the configuration. |
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=head2 allEscapeCodes() |
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Returns a list of all the MARC8 escape codes that are in use in this |
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configuration. Useful for when you are building 006 fields that itemize |
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the different character set codes in use. |
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=cut |
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sub allEscapeCodes { |
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return @{ shift->{allEscapeCodes} }; |
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} |
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=head2 detransFields() |
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Returns a list of fields that the configuration lists as desiring |
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de-transliteration. If you need to you can pass in an array of |
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field names you'd like to detransliterate...but normally you won't |
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want to do this since the value come from the XML configuration. |
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=cut |
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sub detransFields { |
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my ($self,@fields) = @_; |
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if ( @fields ) { $self->{lookForFields} = \@fields; } |
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return @{ $self->{lookForFields} }; |
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} |
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=head2 needsDetrans() |
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Returns true (1) or false (undef) to indicate whether the config lists |
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a particular field/subfield combination as needing detransliteration. |
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=cut |
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sub needsDetrans { |
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my ( $self, %args ) = @_; |
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croak( "must supply field and subfield parameters" ) |
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if ! exists $args{field} or ! exists $args{subfield}; |
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return 1 if $self->{detransFields}{$args{field}.$args{subfield}}; |
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return; |
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} |
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=head2 needsCopy() |
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Returns true (1) or false (undef) to indicate wheter the config lists |
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a particular field/subfield combination as needing a copy. |
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=cut |
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sub needsCopy { |
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my ( $self, %args ) = @_; |
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croak( "must supply field and subfield parameters" ) |
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if ! exists $args{field} or ! exists $args{subfield}; |
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return 1 if $self->{copyFields}{$args{field}.$args{subfield}}; |
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return; |
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} |
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146
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=head1 AUTHORS |
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148
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=over 4 |
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150
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=item * Ed Summers |
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=cut |
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154
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MARC::Detrans::Config->mk_accessors( qw( |
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rules |
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names |
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languageName |
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languageCode |
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scriptName |
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scriptCode |
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scriptOrientation |
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) ); |
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164
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sub _parse { |
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my $self = shift; |
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my $handler = ConfigHandler->new(); |
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my $parser = XML::SAX::ParserFactory->parser( Handler => $handler ); |
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## we skip parsing if we don't have a file to parse, which |
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## can happen when the configuration is being manually configured |
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## in tests... |
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$parser->parse_uri( $self->{ file } ) if $self->{ file }; |
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1584
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$self->rules( $handler->rules() ); |
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$self->names( $handler->names() ); |
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$self->languageName( $handler->languageName() ); |
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$self->languageCode( $handler->languageCode() ); |
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$self->scriptName( $handler->scriptName() ); |
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$self->scriptCode( $handler->scriptCode() ); |
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$self->scriptOrientation( $handler->scriptOrientation() ); |
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$self->{lookForFields} = $handler->{lookForFields}; |
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$self->{detransFields} = $handler->{detransFields}; |
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$self->{copyFields} = $handler->{copyFields}; |
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$self->{allEscapeCodes} = [ sort keys %{ $handler->{allEscapeCodes} } ]; |
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} |
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185
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186
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## the SAX handler for the config file |
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188
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package ConfigHandler; |
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190
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7
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497
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use base qw( XML::SAX::Base ); |
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11
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7
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11777
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191
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7
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7
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239167
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use MARC::Detrans::Rules; |
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23
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7
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301
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192
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7
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4800
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use MARC::Detrans::Rule; |
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223
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193
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5172
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use MARC::Detrans::Names; |
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201
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4619
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use MARC::Detrans::Name; |
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51
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195
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196
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sub new { |
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7
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my $class = shift; |
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98
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my $self = $class->SUPER::new(); |
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734
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$self->resetFlags(); |
200
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55
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$self->{rules} = MARC::Detrans::Rules->new(); |
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$self->{names} = MARC::Detrans::Names->new(); |
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$self->{lookForFields} = []; |
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$self->{detransFields} = {}; |
204
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$self->{copyFields} = {}; |
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$self->{allEscapeCodes} = {}; |
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return bless $self, $class || ref($class); |
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} |
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209
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152
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sub rules { return shift->{rules}; } |
210
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sub names { return shift->{names}; } |
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7
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47
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sub languageName { return shift->{languageName}; } |
212
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7
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7
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293
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sub languageCode { return shift->{languageCode}; } |
213
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7
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7
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43
|
sub scriptName { return shift->{scriptName}; } |
214
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7
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7
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43
|
sub scriptCode { return shift->{scriptCode}; } |
215
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7
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7
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44
|
sub scriptOrientation { return shift->{scriptOrientation}; } |
216
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217
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sub start_element { |
218
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1435
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1435
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890119
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my ( $self, $data ) = @_; |
219
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1435
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2919
|
my $tag = $data->{Name}; |
220
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## start of rule |
221
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1435
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100
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12754
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if ( $tag eq 'rule' ) { |
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100
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100
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100
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100
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100
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100
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50
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100
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100
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222
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453
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1138
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$self->resetFlags(); |
223
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453
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1268
|
$self->{currentPosition} = $data->{Attributes}{'{}position'}{Value}; |
224
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453
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1457
|
$self->{insideRule} = 1;; |
225
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} |
226
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## start of name |
227
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|
elsif ( $tag eq 'name' ) { |
228
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4
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164
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$self->resetFlags(); |
229
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4
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14
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$self->{insideName} = 1; |
230
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} |
231
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## start of roman |
232
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elsif ( $tag eq 'roman' ) { |
233
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457
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1964
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$self->{insideRoman} = 1; |
234
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} |
235
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## start of marc |
236
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|
elsif ( $tag eq 'marc' ) { |
237
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457
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881
|
$self->{insideMarc} = 1; |
238
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457
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|
1576
|
$self->{currentEscape} = $data->{Attributes}{'{}escape'}{Value}; |
239
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|
|
## keep track of all escape codes used |
240
|
457
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100
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|
3381
|
$self->{allEscapeCodes}{ $self->{currentEscape} }++ |
241
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|
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if $self->{currentEscape}; |
242
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} |
243
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|
## language name/code |
244
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|
elsif ( $tag eq 'language' ) { |
245
|
5
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26
|
$self->{languageName} = $data->{Attributes}{'{}name'}{Value}; |
246
|
5
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32
|
$self->{languageCode} = $data->{Attributes}{'{}code'}{Value}; |
247
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|
} |
248
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|
## script name/code |
249
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|
|
elsif ( $tag eq 'script' ) { |
250
|
4
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23
|
$self->{scriptName} = $data->{Attributes}{'{}name'}{Value}; |
251
|
4
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20
|
$self->{scriptCode} = $data->{Attributes}{'{}code'}{Value}; |
252
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4
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201
|
$self->{scriptOrientation}=$data->{Attributes}{'{}orientation'}{Value}; |
253
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|
} |
254
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|
|
## start of fields to detransliterate |
255
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|
|
elsif ( $tag eq 'detrans-fields' ) { |
256
|
9
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|
40
|
$self->{insideDetransFields} = 1; |
257
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|
} |
258
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|
## start of fields to copy |
259
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|
|
elsif ( $tag eq 'copy-fields' ) { |
260
|
0
|
|
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|
|
0
|
$self->{insideCopyFields} = 1; |
261
|
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|
|
} |
262
|
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|
|
## start of field in either detrans-fields and copy-fields |
263
|
|
|
|
|
|
|
elsif ( $tag eq 'field' ) { |
264
|
9
|
|
|
|
|
32
|
my $field = $data->{Attributes}{'{}tag'}{Value}; |
265
|
9
|
|
|
|
|
31
|
$self->{field} = $field; |
266
|
9
|
|
|
|
|
46
|
push( @{ $self->{lookForFields} }, $field ) |
|
9
|
|
|
|
|
135
|
|
267
|
9
|
50
|
|
|
|
18
|
unless grep /$field/, @{$self->{lookForFields}}; |
268
|
|
|
|
|
|
|
} |
269
|
|
|
|
|
|
|
## start of subfield in field element |
270
|
|
|
|
|
|
|
elsif ( $tag eq 'subfield' ) { |
271
|
32
|
|
|
|
|
93
|
my $subfield = $data->{Attributes}{'{}code'}{Value}; |
272
|
32
|
|
|
|
|
72
|
my $field = $self->{field}; |
273
|
|
|
|
|
|
|
|
274
|
|
|
|
|
|
|
## figure out if this subfield needs copying or detransliterating |
275
|
32
|
|
|
|
|
46
|
my $copy = 0; |
276
|
32
|
100
|
66
|
|
|
188
|
if ( $data->{Attributes}{'{}copy'} |
277
|
|
|
|
|
|
|
and $data->{Attributes}{'{}copy'}{Value} eq 'true' ) { |
278
|
14
|
|
|
|
|
24
|
$copy = 1; |
279
|
|
|
|
|
|
|
} |
280
|
|
|
|
|
|
|
## add the field/subfield combo to appropriate hash |
281
|
|
|
|
|
|
|
## to use later to figure out if it needs detrans or copy |
282
|
32
|
100
|
|
|
|
80
|
if ( $copy ) { |
283
|
14
|
|
|
|
|
89
|
$self->{copyFields}{$field.$subfield} = 1; |
284
|
|
|
|
|
|
|
} else { |
285
|
18
|
|
|
|
|
114
|
$self->{detransFields}{$field.$subfield} = 1; |
286
|
|
|
|
|
|
|
} |
287
|
|
|
|
|
|
|
} |
288
|
|
|
|
|
|
|
} |
289
|
|
|
|
|
|
|
|
290
|
|
|
|
|
|
|
sub end_element { |
291
|
1435
|
|
|
1435
|
|
315015
|
my ( $self, $data ) = @_; |
292
|
1435
|
|
|
|
|
3029
|
my $tag = $data->{Name}; |
293
|
|
|
|
|
|
|
## end of rule, so build the rule and add it |
294
|
1435
|
100
|
|
|
|
6148
|
if ( $tag eq 'rule' ) { |
|
|
100
|
|
|
|
|
|
|
|
100
|
|
|
|
|
|
|
|
100
|
|
|
|
|
|
|
|
100
|
|
|
|
|
|
|
|
50
|
|
|
|
|
|
295
|
453
|
|
|
|
|
3113
|
my $rule = MARC::Detrans::Rule->new( |
296
|
|
|
|
|
|
|
from => $self->{romanText}, |
297
|
|
|
|
|
|
|
to => $self->{marcText}, |
298
|
|
|
|
|
|
|
escape => $self->{currentEscape}, |
299
|
|
|
|
|
|
|
position => $self->{currentPosition} |
300
|
|
|
|
|
|
|
); |
301
|
453
|
|
|
|
|
2129
|
$self->{rules}->addRule( $rule ); |
302
|
453
|
|
|
|
|
2981
|
$self->resetFlags(); |
303
|
|
|
|
|
|
|
} |
304
|
|
|
|
|
|
|
## end of name, so build the name and ad it |
305
|
|
|
|
|
|
|
elsif ( $tag eq 'name' ) { |
306
|
4
|
|
|
|
|
45
|
my $name = MARC::Detrans::Name->new( |
307
|
|
|
|
|
|
|
from => $self->{romanText}, |
308
|
|
|
|
|
|
|
to => $self->{marcText}, |
309
|
|
|
|
|
|
|
); |
310
|
4
|
|
|
|
|
73
|
$self->{names}->addName( $name ); |
311
|
4
|
|
|
|
|
16
|
$self->resetFlags(); |
312
|
|
|
|
|
|
|
} |
313
|
|
|
|
|
|
|
## end of marc section, store away the text |
314
|
|
|
|
|
|
|
elsif ( $tag eq 'marc' ) { |
315
|
457
|
|
|
|
|
1115
|
$self->{marcText} = $self->{currentText}; |
316
|
457
|
|
|
|
|
765
|
$self->{currentText} = ''; |
317
|
457
|
|
|
|
|
1464
|
$self->{insideMarc} = 0; |
318
|
|
|
|
|
|
|
} |
319
|
|
|
|
|
|
|
## end of roman section, store away the text |
320
|
|
|
|
|
|
|
elsif ( $tag eq 'roman' ) { |
321
|
457
|
|
|
|
|
925
|
$self->{romanText} = $self->{currentText}; |
322
|
457
|
|
|
|
|
705
|
$self->{currentText} = ''; |
323
|
457
|
|
|
|
|
1670
|
$self->{insideRoman} = 0; |
324
|
|
|
|
|
|
|
} |
325
|
|
|
|
|
|
|
## end of detrans-fields |
326
|
|
|
|
|
|
|
elsif ( $tag eq 'detrans-fields' ) { |
327
|
9
|
|
|
|
|
40
|
$self->{insideDetransFields} = 0; |
328
|
|
|
|
|
|
|
} |
329
|
|
|
|
|
|
|
## end of copy fields |
330
|
|
|
|
|
|
|
elsif ( $tag eq 'copy-fields' ) { |
331
|
0
|
|
|
|
|
0
|
$self->{insideCopyFields} = 0; |
332
|
|
|
|
|
|
|
} |
333
|
|
|
|
|
|
|
} |
334
|
|
|
|
|
|
|
|
335
|
|
|
|
|
|
|
sub characters { |
336
|
2812
|
|
|
2812
|
|
248270
|
my ( $self, $data ) = @_; |
337
|
|
|
|
|
|
|
## only store text if we're in a marc or roman tag |
338
|
2812
|
100
|
100
|
|
|
26423
|
if ( $self->{insideMarc} or $self->{insideRoman} |
|
|
|
66
|
|
|
|
|
339
|
|
|
|
|
|
|
or $self->{insideSubfield} ) { |
340
|
902
|
|
|
|
|
4489
|
$self->{currentText} .= $data->{Data}; |
341
|
|
|
|
|
|
|
} |
342
|
|
|
|
|
|
|
} |
343
|
|
|
|
|
|
|
|
344
|
|
|
|
|
|
|
sub resetFlags { |
345
|
921
|
|
|
921
|
|
1519
|
my $self = shift; |
346
|
921
|
|
|
|
|
1514
|
$self->{insideRule} = 0; |
347
|
921
|
|
|
|
|
1240
|
$self->{insideName} = 0; |
348
|
921
|
|
|
|
|
1240
|
$self->{insideRoman} = 0; |
349
|
921
|
|
|
|
|
2161
|
$self->{insideMarc} = 0; |
350
|
921
|
|
|
|
|
1185
|
$self->{insideDetransFields} = 0; |
351
|
921
|
|
|
|
|
1453
|
$self->{insideCopyFields} = 0; |
352
|
921
|
|
|
|
|
1229
|
$self->{currentText} = ''; |
353
|
921
|
|
|
|
|
1295
|
$self->{marcText} = ''; |
354
|
921
|
|
|
|
|
1340
|
$self->{romanText} = ''; |
355
|
921
|
|
|
|
|
1342
|
$self->{currentEscape} = ''; |
356
|
921
|
|
|
|
|
2725
|
$self->{field} = ''; |
357
|
|
|
|
|
|
|
} |
358
|
|
|
|
|
|
|
|
359
|
|
|
|
|
|
|
1; |