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# |
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# $Id: Tape.pm,v 1.7 2005/09/01 08:19:27 patrick Exp $ |
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# |
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=head1 NAME |
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XML::Tape - module for the manipulation of XMLtape archives |
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=head1 SYNOPSIS |
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use XML::Tape qw(:all); |
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$tape = tapeopen('tape.xml','w'); |
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$tape->add_record("info:archive_id/1", "2005-05-31", $xml_record); |
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$tape->tapeclose(); |
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$tape = tapeopen('tape.xml','r'); |
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while ($record = $tape->get_record()) { |
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printf "id: %s\n" , $record->getIdentifier; |
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printf "date: %s\n" , $record->getDate; |
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printf "xml: %s\n", $record->getRecord; |
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} |
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$tape->tapeclose(); |
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=head1 DESCRIPTION |
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The XMLtape provides a write-once/read-many XML wrapper for a |
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collection of XML documents. The wrapper provides an easy |
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storage format for big collections of XML files which can be |
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processed with off the shelf tools and validated against a |
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schema. The XMLtape is typically used in digital preservation |
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projects. |
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=cut |
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package XML::Tape; |
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use strict; |
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require Exporter; |
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use vars qw($VERSION); |
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( $VERSION ) = '$Revision: 1.7 $ ' =~ /\$Revision:\s+([^\s]+)/;; |
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@XML::Tape::ISA = qw(Exporter); |
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@XML::Tape::EXPORT_OK = qw(tapeopen); |
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%XML::Tape::EXPORT_TAGS = (all => [qw(tapeopen)]); |
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$XML::Tape::SCHEMA_LOCATION = 'http://purl.lanl.gov/aDORe/schemas/2005-08/XMLtape.xsd'; |
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=head1 FUNCTIONS |
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=over 4 |
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51
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=item tapeopen($filename, $mode, [, @admin]) |
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Filename is the location of an XMLtape file or an opened |
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IO::Handle. |
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When mode is 'r' this function opens a XMLtape for reading. |
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When mode is 'w' this function creates a new XMLtape on disk. |
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Optionally an array of strings can be provided which contain in |
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XML format metadata about the XMLtape. E.g. |
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60
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tapeopen( |
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"tape.xml", |
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"w" |
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"2005-05-31" |
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); |
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66
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Returns a XMLtape instance on success or undef on error. |
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68
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=cut |
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sub tapeopen { |
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2
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2289
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my ($filename, $mode, @admin) = @_; |
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2
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33
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die "usage: tapeopen(\$filename, \$mode, [\@admin])" unless ($filename && $mode =~ /^r|w$/); |
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2
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100
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7
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if ($mode eq 'w') { |
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1
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return new XML::Tape::Writer($filename,@admin); |
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} |
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else { |
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1
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207
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my $identifier = new XML::Tape::Identifier; |
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0
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0
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my $namespace = $identifier->identify($filename); |
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0
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0
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if ($namespace eq 'http://library.lanl.gov/2005-01/STB-RL/tape/') { |
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return new XML::Tape::Reader::v2005_01($filename); |
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} |
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elsif ($namespace eq 'http://library.lanl.gov/2005-08/aDORe/XMLtape/') { |
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return new XML::Tape::Reader($filename); |
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} |
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else { |
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die "unknown tape version $namespace"; |
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} |
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} |
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91
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0
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0
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return undef; |
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} |
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94
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package XML::Tape::Writer; |
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1
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1
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1453
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use IO::File; |
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1816
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1
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1012
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96
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97
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sub new { |
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1
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3
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my ($pkg, $filename,@admin) = @_; |
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1
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2
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my $fh; |
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101
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1
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50
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33
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5
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if (ref $filename && $filename->isa('Tie::Handle')) { |
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0
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$fh = $filename; |
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} |
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else { |
105
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1
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10
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$fh = new IO::File; |
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1
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$fh->open("> $filename") || return undef; |
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} |
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1
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115
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my $obj = bless { |
110
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fh => $fh , |
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init => 0, |
112
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recnum => 0 , |
113
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} , $pkg; |
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1
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50
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5
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$obj->add_admin(@admin) if (@admin > 0); |
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1
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6
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return $obj; |
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} |
117
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118
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sub init { |
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1
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2
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my ($this) = shift; |
120
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1
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2
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my $fh = $this->{fh}; |
121
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1
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50
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4
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die "init: not allowed at this stage" unless $this->{init} == 0; |
122
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1
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14
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print $fh "\n"; |
123
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1
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4
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print $fh ""; |
124
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1
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3
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$this->{init}++; |
125
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} |
126
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127
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sub add_admin { |
128
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0
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0
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0
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my ($this,@admin) = @_; |
129
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0
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0
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my $fh = $this->{fh}; |
130
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0
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0
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0
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$this->init() unless ($this->{init}); |
131
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0
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0
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0
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die "add_admin: not allowed at this stage" unless $this->{recnum} == 0; |
132
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0
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0
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foreach (@admin) { |
133
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0
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0
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printf $fh "%s", $_; |
134
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} |
135
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} |
136
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137
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=item $tape->add_record($identifier, $date, $record [, @admin]) |
138
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139
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Add a XML document to the XMLtape with identifier $identifier, date stamp |
140
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$date and XML string representation $record. Optionally |
141
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an array of strings can be provided which contain in |
142
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XML format metadata about the record. |
143
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144
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Returns true on success undef on error. |
145
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146
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=cut |
147
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sub add_record { |
148
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6
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6
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25
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my ($this, $identifier, $date, $record, @admin) = @_; |
149
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6
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7
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my $fh = $this->{fh}; |
150
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6
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100
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16
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$this->init() unless ($this->{init}); |
151
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152
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6
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8
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print $fh ""; |
153
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6
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7
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print $fh ""; |
154
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6
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10
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print $fh "" , &escape($identifier) , ""; |
155
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6
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12
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print $fh "" , &escape($date) , ""; |
156
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6
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13
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foreach my $admin (@admin) { |
157
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0
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0
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print $fh "" , $admin , ""; |
158
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} |
159
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6
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9
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print $fh ""; |
160
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6
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8
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print $fh "" , $record , ""; |
161
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6
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8
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print $fh ""; |
162
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163
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6
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10
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$this->{recnum}++; |
164
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165
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6
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11
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return 1; |
166
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} |
167
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168
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=item $tape->tapeclose |
169
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170
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Closes the XMLtape. |
171
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172
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Returns true on success undef on error. |
173
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174
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=cut |
175
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sub tapeclose { |
176
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1
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1
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257
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my ($this) = shift; |
177
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1
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2
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my $fh = $this->{fh}; |
178
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1
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50
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6
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$this->init() unless ($this->{init}); |
179
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1
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2
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print $fh ""; |
180
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1
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8
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$fh->close; |
181
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} |
182
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183
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sub escape { |
184
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12
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12
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12
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my $str = shift; |
185
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12
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14
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$str =~ s/&/&/g; |
186
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12
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13
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$str =~ s/</g; |
187
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12
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13
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$str =~ s/>/>/g; |
188
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12
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17
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$str =~ s/'/'/g; |
189
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12
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12
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$str =~ s/"/"/g; |
190
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12
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19
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return $str; |
191
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} |
192
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193
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|
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|
|
package XML::Tape::Identifier; |
194
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1
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|
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1
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662
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use XML::Parser; |
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0
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0
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0
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|
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0
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195
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196
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sub new { |
197
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my $pkg = shift; |
198
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return bless {} , $pkg; |
199
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|
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} |
200
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|
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|
201
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|
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sub identify { |
202
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|
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my ($this,$filename) = @_; |
203
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|
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|
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my $parser = new XML::Parser(Namespaces => 1, |
204
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Handlers => { |
205
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Start => sub { $this->handle_start(@_); }, |
206
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}); |
207
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eval { |
208
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|
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$parser->parsefile($filename); |
209
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}; |
210
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return $this->{namespace}; |
211
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} |
212
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213
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sub handle_start { |
214
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|
|
my ($this, $xp, $elem, %attr) = @_; |
215
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|
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|
|
$this->{namespace} = $xp->namespace($elem); |
216
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die "ok"; |
217
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|
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} |
218
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219
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package XML::Tape::Reader; |
220
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# NS version http://library.lanl.gov/2005-08/aDORe/XMLtape/ |
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use XML::Parser; |
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use IO::File; |
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$XML::Tape::Reader::BUFF_SIZE = 1024; |
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sub new { |
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my ($pkg, $filename,%options) = @_; |
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my $obj = bless {} , $pkg; |
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my $fh; |
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if (ref $filename && $filename->isa('Tie::Handle')) { |
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$fh = $filename; |
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} |
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else { |
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$fh = new IO::File; |
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$fh->open("< $filename") || return undef; |
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} |
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$obj->{fh} = $fh; # XML file handle |
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$obj->{records} = []; # Temporary storage for XML::Tape::Record |
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$obj->{admins} = []; # Temporary storage for XML::Tape::Admin |
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$obj->{curr} = undef; # Current record to be read |
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$obj->{parse_init} = 0; # Flag to indicate if we started reading XML |
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$obj->{parse_done} = 0; # Flag to indicate if we still reading XML |
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$obj->{parser} = undef; # XML::Parser |
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$obj->{parsernb} = undef; # XML::Parser::ExpatNB |
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$obj->{nav} = {}; # Hash to navigate in the XML record |
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return $obj; |
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} |
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=item $tape->get_admin() |
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Reads one XMLtape admin section. Returns an instance of XML::Tape::Admin on success |
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or undef when no more XMLtape admin sections are available. |
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=cut |
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sub get_admin { |
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my ($this) = shift; |
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$this->parse() until ( ( scalar @{$this->{records}} ) || ( $this->{parse_done} ) ); |
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return shift( @{$this->{admins}} ); |
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} |
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=item $tape->get_record() |
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Reads one XMLtape record section. Returns an instance of XML::Tape::Record on success |
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or undef when no more records are available. |
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=cut |
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sub get_record { |
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my ($this) = shift; |
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# Parse the XML until we read a new record or the parse is done... |
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$this->parse() until ( ( scalar @{$this->{records}} ) || ( $this->{parse_done} ) ); |
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return shift( @{$this->{records}} ); |
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} |
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sub tapeclose { |
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my ($this) = shift; |
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$this->{fh}->close; |
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} |
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sub parse_init { |
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my ($this) = shift; |
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$this->{parser} = new XML::Parser( Handlers => { |
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Start => sub { $this->handle_start(@_); }, |
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Char => sub { $this->handle_char(@_); }, |
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Comment => sub { $this->handle_comment(@_); }, |
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Proc => sub { $this->handle_proc(@_); }, |
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CdataStart => sub { $this->handle_cdata_start(@_); }, |
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CdataEnd => sub { $this->handle_cdata_end(@_); }, |
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End => sub { $this->handle_end(@_); }, |
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Final => sub { $this->handle_final(@_); }, |
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}); |
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$this->{parsernb} = $this->{parser}->parse_start(); |
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return undef unless $this->{parsernb}; |
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$this->{parse_init} = 1; |
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return 1; |
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} |
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sub parse { |
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my ($this) = shift; |
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unless ($this->{parse_init}) { |
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$this->parse_init() || return undef; |
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} |
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if (defined $this->{fh}) { |
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my $buffer; |
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# Read a chunk of XML... |
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read($this->{fh}, $buffer, $XML::Tape::Reader::BUFF_SIZE); |
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# If the buffer isn't empty then, parse it |
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# otherwise we reached the end of the file... |
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if (length $buffer) { |
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$this->{parsernb}->parse_more($buffer); |
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} |
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else { |
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$this->{parsernb}->parse_done(); |
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$this->{parse_done} = 1; |
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} |
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} |
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} |
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sub handle_start { |
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my ($this, $xp, $elem, %attr) = @_; |
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if (0) {} |
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elsif ($this->{nav}->{in_record}) { |
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$this->{curr}->addRecordXML($xp->original_string); |
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} |
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elsif ($this->{nav}->{in_record_admin}) { |
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$this->{curr}->addAdminXML($xp->original_string); |
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} |
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elsif ($this->{nav}->{in_tape_admin}) { |
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$this->{curr}->addAdminXML($xp->original_string); |
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} |
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if (0) {} |
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elsif ($xp->depth == 1 && $elem =~ /^(\w+:)?tapeAdmin$/) { |
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$this->{nav}->{in_tape_admin} = 1; |
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$this->{curr} = XML::Tape::Admin->new(); |
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} |
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elsif ($xp->depth == 1 && $elem =~ /^(\w+:)?tapeRecord$/) { |
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$this->{curr} = XML::Tape::Record->new(); |
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} |
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elsif ($xp->depth == 2 && $elem =~ /^(\w+:)?tapeRecordAdmin$/) { |
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$this->{nav}->{in_tape_record_admin} = 1; |
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} |
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elsif ($this->{nav}->{in_tape_record_admin} == 1 && $elem =~ /^(\w+:)?identifier$/) { |
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$this->{nav}->{in_record_identifier} = 1; |
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} |
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elsif ($this->{nav}->{in_tape_record_admin} == 1 && $elem =~ /^(\w+:)?date$/) { |
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$this->{nav}->{in_record_date} = 1; |
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} |
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elsif ($this->{nav}->{in_tape_record_admin} == 1 && $elem =~ /^(\w+:)?recordAdmin$/) { |
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$this->{nav}->{in_record_admin} = 1; |
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$this->{curr}->pushAdmin(); |
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} |
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elsif ($xp->depth == 2 && $elem =~ /^(\w+:)?record$/) { |
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$this->{nav}->{in_record} = 1; |
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$this->{curr}->setStartByte($xp->current_byte + length $xp->original_string); |
372
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} |
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} |
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375
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sub handle_end { |
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my ($this, $xp, $elem, %attr) = @_; |
377
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378
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if (0) {} |
379
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elsif ($xp->depth == 1 && $elem =~ /^(\w+:)?tapeAdmin$/) { |
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$this->{nav}->{in_tape_admin} = 0; |
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push(@{$this->{admins}}, $this->{curr}); |
382
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} |
383
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elsif ($xp->depth == 1 && $elem =~ /^(\w+:)?tapeRecord$/) { |
384
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push(@{$this->{records}}, $this->{curr}); |
385
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} |
386
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elsif ($xp->depth == 2 && $elem =~ /^(\w+:)?tapeRecordAdmin$/) { |
387
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$this->{nav}->{in_tape_record_admin} = 0; |
388
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} |
389
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elsif ($this->{nav}->{in_tape_record_admin} == 1 && $elem =~ /^(\w+:)?identifier$/) { |
390
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$this->{nav}->{in_record_identifier} = 0; |
391
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} |
392
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elsif ($this->{nav}->{in_tape_record_admin} == 1 && $elem =~ /^(\w+:)?date$/) { |
393
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$this->{nav}->{in_record_date} = 0; |
394
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} |
395
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elsif ($this->{nav}->{in_tape_record_admin} == 1 && $elem =~ /^(\w+:)?recordAdmin$/) { |
396
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$this->{nav}->{in_record_admin} = 0; |
397
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} |
398
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elsif ($xp->depth == 2 && $elem =~ /^(\w+:)?record$/) { |
399
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$this->{nav}->{in_record} = 0; |
400
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$this->{curr}->setEndByte($xp->current_byte); |
401
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} |
402
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403
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if (0) {} |
404
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elsif ($this->{nav}->{in_record}) { |
405
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$this->{curr}->addRecordXML($xp->original_string); |
406
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} |
407
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elsif ($this->{nav}->{in_record_admin}) { |
408
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$this->{curr}->addAdminXML($xp->original_string); |
409
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} |
410
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elsif ($this->{nav}->{in_tape_admin}) { |
411
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$this->{curr}->addAdminXML($xp->original_string); |
412
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} |
413
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} |
414
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415
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sub handle_char { |
416
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my ($this, $xp, $data) = @_; |
417
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418
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if (0) {} |
419
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elsif ($this->{nav}->{in_tape_admin}) { |
420
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$this->{curr}->addAdminXML($xp->original_string); |
421
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} |
422
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elsif ($this->{nav}->{in_record}) { |
423
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$this->{curr}->addRecordXML($xp->original_string); |
424
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} |
425
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elsif ($this->{nav}->{in_record_identifier}) { |
426
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$this->{curr}->addIdentifier($data); |
427
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} |
428
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elsif ($this->{nav}->{in_record_date}) { |
429
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$this->{curr}->addDate($data); |
430
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} |
431
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} |
432
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433
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sub handle_comment { |
434
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my ($this, $xp, $data) = @_; |
435
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436
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if (0) {} |
437
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elsif ($this->{nav}->{in_tape_admin}) { |
438
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$this->{curr}->addAdminXML($xp->original_string); |
439
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} |
440
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elsif ($this->{nav}->{in_record}) { |
441
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$this->{curr}->addRecordXML($xp->original_string); |
442
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} |
443
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} |
444
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|
|
|
|
|
445
|
|
|
|
|
|
|
sub handle_proc { |
446
|
|
|
|
|
|
|
my ($this, $xp) = @_; |
447
|
|
|
|
|
|
|
|
448
|
|
|
|
|
|
|
if (0) {} |
449
|
|
|
|
|
|
|
elsif ($this->{nav}->{in_tape_admin}) { |
450
|
|
|
|
|
|
|
$this->{curr}->addAdminXML($xp->original_string); |
451
|
|
|
|
|
|
|
} |
452
|
|
|
|
|
|
|
elsif ($this->{nav}->{in_record}) { |
453
|
|
|
|
|
|
|
$this->{curr}->addRecordXML($xp->original_string); |
454
|
|
|
|
|
|
|
} |
455
|
|
|
|
|
|
|
} |
456
|
|
|
|
|
|
|
|
457
|
|
|
|
|
|
|
sub handle_cdata_start { |
458
|
|
|
|
|
|
|
my ($this, $xp) = @_; |
459
|
|
|
|
|
|
|
|
460
|
|
|
|
|
|
|
if (0) {} |
461
|
|
|
|
|
|
|
elsif ($this->{nav}->{in_tape_admin}) { |
462
|
|
|
|
|
|
|
$this->{curr}->addAdminXML($xp->original_string); |
463
|
|
|
|
|
|
|
} |
464
|
|
|
|
|
|
|
elsif ($this->{nav}->{in_record}) { |
465
|
|
|
|
|
|
|
$this->{curr}->addRecordXML($xp->original_string); |
466
|
|
|
|
|
|
|
} |
467
|
|
|
|
|
|
|
} |
468
|
|
|
|
|
|
|
|
469
|
|
|
|
|
|
|
sub handle_cdata_end { |
470
|
|
|
|
|
|
|
my ($this, $xp) = @_; |
471
|
|
|
|
|
|
|
|
472
|
|
|
|
|
|
|
if (0) {} |
473
|
|
|
|
|
|
|
elsif ($this->{nav}->{in_tape_admin}) { |
474
|
|
|
|
|
|
|
$this->{curr}->addAdminXML($xp->original_string); |
475
|
|
|
|
|
|
|
} |
476
|
|
|
|
|
|
|
elsif ($this->{nav}->{in_record}) { |
477
|
|
|
|
|
|
|
$this->{curr}->addRecordXML($xp->original_string); |
478
|
|
|
|
|
|
|
} |
479
|
|
|
|
|
|
|
} |
480
|
|
|
|
|
|
|
|
481
|
|
|
|
|
|
|
sub handle_final { |
482
|
|
|
|
|
|
|
return 1; |
483
|
|
|
|
|
|
|
} |
484
|
|
|
|
|
|
|
|
485
|
|
|
|
|
|
|
package XML::Tape::Reader::v2005_01; |
486
|
|
|
|
|
|
|
# Old tape reader keeping for backwards compatibility reasons; |
487
|
|
|
|
|
|
|
# NS version http://library.lanl.gov/2005-01/STB-RL/tape/ |
488
|
|
|
|
|
|
|
use XML::Parser; |
489
|
|
|
|
|
|
|
use IO::File; |
490
|
|
|
|
|
|
|
|
491
|
|
|
|
|
|
|
$XML::Tape::Reader::BUFF_SIZE = 1024; |
492
|
|
|
|
|
|
|
|
493
|
|
|
|
|
|
|
sub new { |
494
|
|
|
|
|
|
|
my ($pkg, $filename,%options) = @_; |
495
|
|
|
|
|
|
|
my $obj = bless {} , $pkg; |
496
|
|
|
|
|
|
|
my $fh; |
497
|
|
|
|
|
|
|
|
498
|
|
|
|
|
|
|
if (ref $filename && $filename->isa('Tie::Handle')) { |
499
|
|
|
|
|
|
|
$fh = $filename; |
500
|
|
|
|
|
|
|
} |
501
|
|
|
|
|
|
|
else { |
502
|
|
|
|
|
|
|
$fh = new IO::File; |
503
|
|
|
|
|
|
|
$fh->open("< $filename") || return undef; |
504
|
|
|
|
|
|
|
} |
505
|
|
|
|
|
|
|
|
506
|
|
|
|
|
|
|
$obj->{fh} = $fh; # XML file handle |
507
|
|
|
|
|
|
|
$obj->{records} = []; # Temporary storage for XML::Tape::Record |
508
|
|
|
|
|
|
|
$obj->{admins} = []; # Temporary storage for XML::Tape::Admin |
509
|
|
|
|
|
|
|
$obj->{curr} = undef; # Current record to be read |
510
|
|
|
|
|
|
|
$obj->{parse_init} = 0; # Flag to indicate if we started reading XML |
511
|
|
|
|
|
|
|
$obj->{parse_done} = 0; # Flag to indicate if we still reading XML |
512
|
|
|
|
|
|
|
$obj->{parser} = undef; # XML::Parser |
513
|
|
|
|
|
|
|
$obj->{parsernb} = undef; # XML::Parser::ExpatNB |
514
|
|
|
|
|
|
|
$obj->{nav} = {}; # Hash to navigate in the XML record |
515
|
|
|
|
|
|
|
|
516
|
|
|
|
|
|
|
return $obj; |
517
|
|
|
|
|
|
|
} |
518
|
|
|
|
|
|
|
|
519
|
|
|
|
|
|
|
sub get_admin { |
520
|
|
|
|
|
|
|
my ($this) = shift; |
521
|
|
|
|
|
|
|
|
522
|
|
|
|
|
|
|
$this->parse() until ( ( scalar @{$this->{records}} ) || ( $this->{parse_done} ) ); |
523
|
|
|
|
|
|
|
|
524
|
|
|
|
|
|
|
return shift( @{$this->{admins}} ); |
525
|
|
|
|
|
|
|
} |
526
|
|
|
|
|
|
|
|
527
|
|
|
|
|
|
|
sub get_record { |
528
|
|
|
|
|
|
|
my ($this) = shift; |
529
|
|
|
|
|
|
|
|
530
|
|
|
|
|
|
|
# Parse the XML until we read a new record or the parse is done... |
531
|
|
|
|
|
|
|
$this->parse() until ( ( scalar @{$this->{records}} ) || ( $this->{parse_done} ) ); |
532
|
|
|
|
|
|
|
|
533
|
|
|
|
|
|
|
return shift( @{$this->{records}} ); |
534
|
|
|
|
|
|
|
} |
535
|
|
|
|
|
|
|
|
536
|
|
|
|
|
|
|
sub tapeclose { |
537
|
|
|
|
|
|
|
my ($this) = shift; |
538
|
|
|
|
|
|
|
$this->{fh}->close; |
539
|
|
|
|
|
|
|
} |
540
|
|
|
|
|
|
|
|
541
|
|
|
|
|
|
|
sub parse_init { |
542
|
|
|
|
|
|
|
my ($this) = shift; |
543
|
|
|
|
|
|
|
|
544
|
|
|
|
|
|
|
$this->{parser} = new XML::Parser( Handlers => { |
545
|
|
|
|
|
|
|
Start => sub { $this->handle_start(@_); }, |
546
|
|
|
|
|
|
|
Char => sub { $this->handle_char(@_); }, |
547
|
|
|
|
|
|
|
Comment => sub { $this->handle_comment(@_); }, |
548
|
|
|
|
|
|
|
Proc => sub { $this->handle_proc(@_); }, |
549
|
|
|
|
|
|
|
CdataStart => sub { $this->handle_cdata_start(@_); }, |
550
|
|
|
|
|
|
|
CdataEnd => sub { $this->handle_cdata_end(@_); }, |
551
|
|
|
|
|
|
|
End => sub { $this->handle_end(@_); }, |
552
|
|
|
|
|
|
|
Final => sub { $this->handle_final(@_); }, |
553
|
|
|
|
|
|
|
}); |
554
|
|
|
|
|
|
|
|
555
|
|
|
|
|
|
|
$this->{parsernb} = $this->{parser}->parse_start(); |
556
|
|
|
|
|
|
|
|
557
|
|
|
|
|
|
|
return undef unless $this->{parsernb}; |
558
|
|
|
|
|
|
|
|
559
|
|
|
|
|
|
|
$this->{parse_init} = 1; |
560
|
|
|
|
|
|
|
|
561
|
|
|
|
|
|
|
return 1; |
562
|
|
|
|
|
|
|
} |
563
|
|
|
|
|
|
|
|
564
|
|
|
|
|
|
|
sub parse { |
565
|
|
|
|
|
|
|
my ($this) = shift; |
566
|
|
|
|
|
|
|
|
567
|
|
|
|
|
|
|
unless ($this->{parse_init}) { |
568
|
|
|
|
|
|
|
$this->parse_init() || return undef; |
569
|
|
|
|
|
|
|
} |
570
|
|
|
|
|
|
|
|
571
|
|
|
|
|
|
|
if (defined $this->{fh}) { |
572
|
|
|
|
|
|
|
my $buffer; |
573
|
|
|
|
|
|
|
|
574
|
|
|
|
|
|
|
# Read a chunk of XML... |
575
|
|
|
|
|
|
|
read($this->{fh}, $buffer, $XML::Tape::Reader::BUFF_SIZE); |
576
|
|
|
|
|
|
|
|
577
|
|
|
|
|
|
|
# If the buffer isn't empty then, parse it |
578
|
|
|
|
|
|
|
# otherwise we reached the end of the file... |
579
|
|
|
|
|
|
|
if (length $buffer) { |
580
|
|
|
|
|
|
|
$this->{parsernb}->parse_more($buffer); |
581
|
|
|
|
|
|
|
} |
582
|
|
|
|
|
|
|
else { |
583
|
|
|
|
|
|
|
$this->{parsernb}->parse_done(); |
584
|
|
|
|
|
|
|
$this->{parse_done} = 1; |
585
|
|
|
|
|
|
|
} |
586
|
|
|
|
|
|
|
} |
587
|
|
|
|
|
|
|
} |
588
|
|
|
|
|
|
|
|
589
|
|
|
|
|
|
|
sub handle_start { |
590
|
|
|
|
|
|
|
my ($this, $xp, $elem, %attr) = @_; |
591
|
|
|
|
|
|
|
|
592
|
|
|
|
|
|
|
if (0) {} |
593
|
|
|
|
|
|
|
elsif ($this->{nav}->{in_record}) { |
594
|
|
|
|
|
|
|
$this->{curr}->addRecordXML($xp->original_string); |
595
|
|
|
|
|
|
|
} |
596
|
|
|
|
|
|
|
elsif ($this->{nav}->{in_record_admin}) { |
597
|
|
|
|
|
|
|
$this->{curr}->addAdminXML($xp->original_string); |
598
|
|
|
|
|
|
|
} |
599
|
|
|
|
|
|
|
elsif ($this->{nav}->{in_tape_admin}) { |
600
|
|
|
|
|
|
|
$this->{curr}->addAdminXML($xp->original_string); |
601
|
|
|
|
|
|
|
} |
602
|
|
|
|
|
|
|
|
603
|
|
|
|
|
|
|
if (0) {} |
604
|
|
|
|
|
|
|
elsif ($xp->depth == 1 && $elem =~ /^(\w+:)?tape-admin$/) { |
605
|
|
|
|
|
|
|
$this->{nav}->{in_tape_admin} = 1; |
606
|
|
|
|
|
|
|
$this->{curr} = XML::Tape::Admin->new(); |
607
|
|
|
|
|
|
|
} |
608
|
|
|
|
|
|
|
elsif ($xp->depth == 1 && $elem =~ /^(\w+:)?tape-record$/) { |
609
|
|
|
|
|
|
|
$this->{curr} = XML::Tape::Record->new(); |
610
|
|
|
|
|
|
|
} |
611
|
|
|
|
|
|
|
elsif ($xp->depth == 2 && $elem =~ /^(\w+:)?tape-record-admin$/) { |
612
|
|
|
|
|
|
|
$this->{nav}->{in_tape_record_admin} = 1; |
613
|
|
|
|
|
|
|
} |
614
|
|
|
|
|
|
|
elsif ($this->{nav}->{in_tape_record_admin} == 1 && $elem =~ /^(\w+:)?identifier$/) { |
615
|
|
|
|
|
|
|
$this->{nav}->{in_record_identifier} = 1; |
616
|
|
|
|
|
|
|
} |
617
|
|
|
|
|
|
|
elsif ($this->{nav}->{in_tape_record_admin} == 1 && $elem =~ /^(\w+:)?date$/) { |
618
|
|
|
|
|
|
|
$this->{nav}->{in_record_date} = 1; |
619
|
|
|
|
|
|
|
} |
620
|
|
|
|
|
|
|
elsif ($this->{nav}->{in_tape_record_admin} == 1 && $elem =~ /^(\w+:)?record-admin$/) { |
621
|
|
|
|
|
|
|
$this->{nav}->{in_record_admin} = 1; |
622
|
|
|
|
|
|
|
$this->{curr}->pushAdmin(); |
623
|
|
|
|
|
|
|
} |
624
|
|
|
|
|
|
|
elsif ($xp->depth == 2 && $elem =~ /^(\w+:)?record$/) { |
625
|
|
|
|
|
|
|
$this->{nav}->{in_record} = 1; |
626
|
|
|
|
|
|
|
$this->{curr}->setStartByte($xp->current_byte + length $xp->original_string); |
627
|
|
|
|
|
|
|
} |
628
|
|
|
|
|
|
|
} |
629
|
|
|
|
|
|
|
|
630
|
|
|
|
|
|
|
sub handle_end { |
631
|
|
|
|
|
|
|
my ($this, $xp, $elem, %attr) = @_; |
632
|
|
|
|
|
|
|
|
633
|
|
|
|
|
|
|
if (0) {} |
634
|
|
|
|
|
|
|
elsif ($xp->depth == 1 && $elem =~ /^(\w+:)?tape-admin$/) { |
635
|
|
|
|
|
|
|
$this->{nav}->{in_tape_admin} = 0; |
636
|
|
|
|
|
|
|
push(@{$this->{admins}}, $this->{curr}); |
637
|
|
|
|
|
|
|
} |
638
|
|
|
|
|
|
|
elsif ($xp->depth == 1 && $elem =~ /^(\w+:)?tape-record$/) { |
639
|
|
|
|
|
|
|
push(@{$this->{records}}, $this->{curr}); |
640
|
|
|
|
|
|
|
} |
641
|
|
|
|
|
|
|
elsif ($xp->depth == 2 && $elem =~ /^(\w+:)?tape-record-admin$/) { |
642
|
|
|
|
|
|
|
$this->{nav}->{in_tape_record_admin} = 0; |
643
|
|
|
|
|
|
|
} |
644
|
|
|
|
|
|
|
elsif ($this->{nav}->{in_tape_record_admin} == 1 && $elem =~ /^(\w+:)?identifier$/) { |
645
|
|
|
|
|
|
|
$this->{nav}->{in_record_identifier} = 0; |
646
|
|
|
|
|
|
|
} |
647
|
|
|
|
|
|
|
elsif ($this->{nav}->{in_tape_record_admin} == 1 && $elem =~ /^(\w+:)?date$/) { |
648
|
|
|
|
|
|
|
$this->{nav}->{in_record_date} = 0; |
649
|
|
|
|
|
|
|
} |
650
|
|
|
|
|
|
|
elsif ($this->{nav}->{in_tape_record_admin} == 1 && $elem =~ /^(\w+:)?record-admin$/) { |
651
|
|
|
|
|
|
|
$this->{nav}->{in_record_admin} = 0; |
652
|
|
|
|
|
|
|
} |
653
|
|
|
|
|
|
|
elsif ($xp->depth == 2 && $elem =~ /^(\w+:)?record$/) { |
654
|
|
|
|
|
|
|
$this->{nav}->{in_record} = 0; |
655
|
|
|
|
|
|
|
$this->{curr}->setEndByte($xp->current_byte); |
656
|
|
|
|
|
|
|
} |
657
|
|
|
|
|
|
|
|
658
|
|
|
|
|
|
|
if (0) {} |
659
|
|
|
|
|
|
|
elsif ($this->{nav}->{in_record}) { |
660
|
|
|
|
|
|
|
$this->{curr}->addRecordXML($xp->original_string); |
661
|
|
|
|
|
|
|
} |
662
|
|
|
|
|
|
|
elsif ($this->{nav}->{in_record_admin}) { |
663
|
|
|
|
|
|
|
$this->{curr}->addAdminXML($xp->original_string); |
664
|
|
|
|
|
|
|
} |
665
|
|
|
|
|
|
|
elsif ($this->{nav}->{in_tape_admin}) { |
666
|
|
|
|
|
|
|
$this->{curr}->addAdminXML($xp->original_string); |
667
|
|
|
|
|
|
|
} |
668
|
|
|
|
|
|
|
} |
669
|
|
|
|
|
|
|
|
670
|
|
|
|
|
|
|
sub handle_char { |
671
|
|
|
|
|
|
|
my ($this, $xp, $data) = @_; |
672
|
|
|
|
|
|
|
|
673
|
|
|
|
|
|
|
if (0) {} |
674
|
|
|
|
|
|
|
elsif ($this->{nav}->{in_tape_admin}) { |
675
|
|
|
|
|
|
|
$this->{curr}->addAdminXML($xp->original_string); |
676
|
|
|
|
|
|
|
} |
677
|
|
|
|
|
|
|
elsif ($this->{nav}->{in_record}) { |
678
|
|
|
|
|
|
|
$this->{curr}->addRecordXML($xp->original_string); |
679
|
|
|
|
|
|
|
} |
680
|
|
|
|
|
|
|
elsif ($this->{nav}->{in_record_identifier}) { |
681
|
|
|
|
|
|
|
$this->{curr}->addIdentifier($data); |
682
|
|
|
|
|
|
|
} |
683
|
|
|
|
|
|
|
elsif ($this->{nav}->{in_record_date}) { |
684
|
|
|
|
|
|
|
$this->{curr}->addDate($data); |
685
|
|
|
|
|
|
|
} |
686
|
|
|
|
|
|
|
} |
687
|
|
|
|
|
|
|
|
688
|
|
|
|
|
|
|
sub handle_comment { |
689
|
|
|
|
|
|
|
my ($this, $xp, $data) = @_; |
690
|
|
|
|
|
|
|
|
691
|
|
|
|
|
|
|
if (0) {} |
692
|
|
|
|
|
|
|
elsif ($this->{nav}->{in_tape_admin}) { |
693
|
|
|
|
|
|
|
$this->{curr}->addAdminXML($xp->original_string); |
694
|
|
|
|
|
|
|
} |
695
|
|
|
|
|
|
|
elsif ($this->{nav}->{in_record}) { |
696
|
|
|
|
|
|
|
$this->{curr}->addRecordXML($xp->original_string); |
697
|
|
|
|
|
|
|
} |
698
|
|
|
|
|
|
|
} |
699
|
|
|
|
|
|
|
|
700
|
|
|
|
|
|
|
sub handle_proc { |
701
|
|
|
|
|
|
|
my ($this, $xp) = @_; |
702
|
|
|
|
|
|
|
|
703
|
|
|
|
|
|
|
if (0) {} |
704
|
|
|
|
|
|
|
elsif ($this->{nav}->{in_tape_admin}) { |
705
|
|
|
|
|
|
|
$this->{curr}->addAdminXML($xp->original_string); |
706
|
|
|
|
|
|
|
} |
707
|
|
|
|
|
|
|
elsif ($this->{nav}->{in_record}) { |
708
|
|
|
|
|
|
|
$this->{curr}->addRecordXML($xp->original_string); |
709
|
|
|
|
|
|
|
} |
710
|
|
|
|
|
|
|
} |
711
|
|
|
|
|
|
|
|
712
|
|
|
|
|
|
|
sub handle_cdata_start { |
713
|
|
|
|
|
|
|
my ($this, $xp) = @_; |
714
|
|
|
|
|
|
|
|
715
|
|
|
|
|
|
|
if (0) {} |
716
|
|
|
|
|
|
|
elsif ($this->{nav}->{in_tape_admin}) { |
717
|
|
|
|
|
|
|
$this->{curr}->addAdminXML($xp->original_string); |
718
|
|
|
|
|
|
|
} |
719
|
|
|
|
|
|
|
elsif ($this->{nav}->{in_record}) { |
720
|
|
|
|
|
|
|
$this->{curr}->addRecordXML($xp->original_string); |
721
|
|
|
|
|
|
|
} |
722
|
|
|
|
|
|
|
} |
723
|
|
|
|
|
|
|
|
724
|
|
|
|
|
|
|
sub handle_cdata_end { |
725
|
|
|
|
|
|
|
my ($this, $xp) = @_; |
726
|
|
|
|
|
|
|
|
727
|
|
|
|
|
|
|
if (0) {} |
728
|
|
|
|
|
|
|
elsif ($this->{nav}->{in_tape_admin}) { |
729
|
|
|
|
|
|
|
$this->{curr}->addAdminXML($xp->original_string); |
730
|
|
|
|
|
|
|
} |
731
|
|
|
|
|
|
|
elsif ($this->{nav}->{in_record}) { |
732
|
|
|
|
|
|
|
$this->{curr}->addRecordXML($xp->original_string); |
733
|
|
|
|
|
|
|
} |
734
|
|
|
|
|
|
|
} |
735
|
|
|
|
|
|
|
|
736
|
|
|
|
|
|
|
sub handle_final { |
737
|
|
|
|
|
|
|
return 1; |
738
|
|
|
|
|
|
|
} |
739
|
|
|
|
|
|
|
|
740
|
|
|
|
|
|
|
|
741
|
|
|
|
|
|
|
=back |
742
|
|
|
|
|
|
|
|
743
|
|
|
|
|
|
|
=head1 XML::Tape::Admin METHODS |
744
|
|
|
|
|
|
|
|
745
|
|
|
|
|
|
|
=over 4 |
746
|
|
|
|
|
|
|
|
747
|
|
|
|
|
|
|
=item $admin->getRecord() |
748
|
|
|
|
|
|
|
|
749
|
|
|
|
|
|
|
Returns a XML string representation of a XMLtape administrative record. |
750
|
|
|
|
|
|
|
|
751
|
|
|
|
|
|
|
=back |
752
|
|
|
|
|
|
|
|
753
|
|
|
|
|
|
|
=cut |
754
|
|
|
|
|
|
|
package XML::Tape::Admin; |
755
|
|
|
|
|
|
|
|
756
|
|
|
|
|
|
|
sub new { |
757
|
|
|
|
|
|
|
my ($pkg) = shift; |
758
|
|
|
|
|
|
|
return bless { |
759
|
|
|
|
|
|
|
adminXML => undef , |
760
|
|
|
|
|
|
|
} , $pkg; |
761
|
|
|
|
|
|
|
} |
762
|
|
|
|
|
|
|
|
763
|
|
|
|
|
|
|
sub addAdminXML { |
764
|
|
|
|
|
|
|
my ($this, $str) = @_; |
765
|
|
|
|
|
|
|
$this->{adminXML} .= $str; |
766
|
|
|
|
|
|
|
} |
767
|
|
|
|
|
|
|
|
768
|
|
|
|
|
|
|
sub getRecord { |
769
|
|
|
|
|
|
|
my ($this) = @_; |
770
|
|
|
|
|
|
|
return $this->{adminXML}; |
771
|
|
|
|
|
|
|
} |
772
|
|
|
|
|
|
|
|
773
|
|
|
|
|
|
|
=head1 XML::Tape::Record METHODS |
774
|
|
|
|
|
|
|
|
775
|
|
|
|
|
|
|
=over 4 |
776
|
|
|
|
|
|
|
|
777
|
|
|
|
|
|
|
=item $record->getIdentifier() |
778
|
|
|
|
|
|
|
|
779
|
|
|
|
|
|
|
Returns the record identifier as string. |
780
|
|
|
|
|
|
|
|
781
|
|
|
|
|
|
|
=item $record->getDate() |
782
|
|
|
|
|
|
|
|
783
|
|
|
|
|
|
|
Returns the record datestamp as string. |
784
|
|
|
|
|
|
|
|
785
|
|
|
|
|
|
|
=item $record->getAdmin() |
786
|
|
|
|
|
|
|
|
787
|
|
|
|
|
|
|
Returns an ARRAY of administrative records |
788
|
|
|
|
|
|
|
|
789
|
|
|
|
|
|
|
=item $record->getRecord() |
790
|
|
|
|
|
|
|
|
791
|
|
|
|
|
|
|
Returns a XML string representation of a XMLtape record. |
792
|
|
|
|
|
|
|
|
793
|
|
|
|
|
|
|
=item $record->getStartByte() |
794
|
|
|
|
|
|
|
|
795
|
|
|
|
|
|
|
Returns the start byte position of the record in the XMLtape |
796
|
|
|
|
|
|
|
|
797
|
|
|
|
|
|
|
=item $record->getEndByte() |
798
|
|
|
|
|
|
|
|
799
|
|
|
|
|
|
|
Returns the end byte positorion of the record in the XMLtape |
800
|
|
|
|
|
|
|
|
801
|
|
|
|
|
|
|
=back |
802
|
|
|
|
|
|
|
|
803
|
|
|
|
|
|
|
=cut |
804
|
|
|
|
|
|
|
package XML::Tape::Record; |
805
|
|
|
|
|
|
|
|
806
|
|
|
|
|
|
|
sub new { |
807
|
|
|
|
|
|
|
my ($pkg) = shift; |
808
|
|
|
|
|
|
|
return bless { |
809
|
|
|
|
|
|
|
startByte => 0 , |
810
|
|
|
|
|
|
|
endByte => 0 , |
811
|
|
|
|
|
|
|
recordXML => undef, |
812
|
|
|
|
|
|
|
identifier => undef, |
813
|
|
|
|
|
|
|
date => undef, |
814
|
|
|
|
|
|
|
admin => [], |
815
|
|
|
|
|
|
|
} , $pkg; |
816
|
|
|
|
|
|
|
} |
817
|
|
|
|
|
|
|
|
818
|
|
|
|
|
|
|
sub setStartByte { |
819
|
|
|
|
|
|
|
my ($this,$num) = @_; |
820
|
|
|
|
|
|
|
$this->{startByte} = $num; |
821
|
|
|
|
|
|
|
} |
822
|
|
|
|
|
|
|
|
823
|
|
|
|
|
|
|
sub getStartByte { |
824
|
|
|
|
|
|
|
my ($this) = @_; |
825
|
|
|
|
|
|
|
return $this->{startByte}; |
826
|
|
|
|
|
|
|
} |
827
|
|
|
|
|
|
|
|
828
|
|
|
|
|
|
|
sub setEndByte { |
829
|
|
|
|
|
|
|
my ($this,$num) = @_; |
830
|
|
|
|
|
|
|
$this->{endByte} = $num; |
831
|
|
|
|
|
|
|
} |
832
|
|
|
|
|
|
|
|
833
|
|
|
|
|
|
|
sub getEndByte { |
834
|
|
|
|
|
|
|
my ($this) = @_; |
835
|
|
|
|
|
|
|
return $this->{endByte}; |
836
|
|
|
|
|
|
|
} |
837
|
|
|
|
|
|
|
|
838
|
|
|
|
|
|
|
sub addRecordXML { |
839
|
|
|
|
|
|
|
my ($this, $str) = @_; |
840
|
|
|
|
|
|
|
$this->{recordXML} .= $str; |
841
|
|
|
|
|
|
|
} |
842
|
|
|
|
|
|
|
|
843
|
|
|
|
|
|
|
sub getRecord { |
844
|
|
|
|
|
|
|
my ($this) = @_; |
845
|
|
|
|
|
|
|
return $this->{recordXML}; |
846
|
|
|
|
|
|
|
} |
847
|
|
|
|
|
|
|
|
848
|
|
|
|
|
|
|
sub addIdentifier { |
849
|
|
|
|
|
|
|
my ($this, $str) = @_; |
850
|
|
|
|
|
|
|
$this->{identifier} .= $str; |
851
|
|
|
|
|
|
|
} |
852
|
|
|
|
|
|
|
|
853
|
|
|
|
|
|
|
sub getIdentifier { |
854
|
|
|
|
|
|
|
my ($this) = @_; |
855
|
|
|
|
|
|
|
return $this->{identifier}; |
856
|
|
|
|
|
|
|
} |
857
|
|
|
|
|
|
|
|
858
|
|
|
|
|
|
|
sub addDate { |
859
|
|
|
|
|
|
|
my ($this, $str) = @_; |
860
|
|
|
|
|
|
|
$this->{date} .= $str; |
861
|
|
|
|
|
|
|
} |
862
|
|
|
|
|
|
|
|
863
|
|
|
|
|
|
|
sub getDate { |
864
|
|
|
|
|
|
|
my ($this) = @_; |
865
|
|
|
|
|
|
|
return $this->{date}; |
866
|
|
|
|
|
|
|
} |
867
|
|
|
|
|
|
|
|
868
|
|
|
|
|
|
|
sub pushAdmin { |
869
|
|
|
|
|
|
|
my ($this) = @_; |
870
|
|
|
|
|
|
|
push(@{$this->{admin}},''); |
871
|
|
|
|
|
|
|
} |
872
|
|
|
|
|
|
|
|
873
|
|
|
|
|
|
|
sub addAdminXML { |
874
|
|
|
|
|
|
|
my ($this, $xml) = @_; |
875
|
|
|
|
|
|
|
my $num = @{$this->{admin}}; |
876
|
|
|
|
|
|
|
$this->{admin}->[$num-1] .= $xml; |
877
|
|
|
|
|
|
|
} |
878
|
|
|
|
|
|
|
|
879
|
|
|
|
|
|
|
sub getAdmin { |
880
|
|
|
|
|
|
|
my ($this) = @_; |
881
|
|
|
|
|
|
|
return $this->{admin}; |
882
|
|
|
|
|
|
|
} |
883
|
|
|
|
|
|
|
|
884
|
|
|
|
|
|
|
1; |
885
|
|
|
|
|
|
|
|
886
|
|
|
|
|
|
|
=head1 FURTHER INFORMATION |
887
|
|
|
|
|
|
|
|
888
|
|
|
|
|
|
|
'File-based storage of Digital Objects and constituent datastreams: XMLtapes and Internet Archive ARC files' |
889
|
|
|
|
|
|
|
http://arxiv.org/abs/cs.DL/0503016 |
890
|
|
|
|
|
|
|
|
891
|
|
|
|
|
|
|
'The multi-faceted use of the OAI-PMH in the LANL Repository' |
892
|
|
|
|
|
|
|
http://yar.sourceforge.net/jcdl2004-submitted-draft.pdf |
893
|
|
|
|
|
|
|
|
894
|
|
|
|
|
|
|
=head1 BUGS |
895
|
|
|
|
|
|
|
|
896
|
|
|
|
|
|
|
UTF-8 encoding is mandatory. |
897
|
|
|
|
|
|
|
Doesn't check for UTF-8 encoding. |
898
|
|
|
|
|
|
|
|
899
|
|
|
|
|
|
|
=head1 CREDITS |
900
|
|
|
|
|
|
|
|
901
|
|
|
|
|
|
|
XMLtape archives were developed by the Digital Library Research & Prototyping |
902
|
|
|
|
|
|
|
team at Los Alamos National Laboratory. |
903
|
|
|
|
|
|
|
|
904
|
|
|
|
|
|
|
XML parsing in the module was inspired by Robert Hanson's XML::RAX module. |
905
|
|
|
|
|
|
|
|
906
|
|
|
|
|
|
|
=head1 SEE ALSO |
907
|
|
|
|
|
|
|
|
908
|
|
|
|
|
|
|
L |
909
|
|
|
|
|
|
|
|
910
|
|
|
|
|
|
|
In bin/oaitape you'll find an example of a OAI-PMH interface on XML::Tape |
911
|
|
|
|
|
|
|
|
912
|
|
|
|
|
|
|
=head1 AUTHOR |
913
|
|
|
|
|
|
|
|
914
|
|
|
|
|
|
|
Patrick Hochstenbach |
915
|
|
|
|
|
|
|
|
916
|
|
|
|
|
|
|
=cut |
917
|
|
|
|
|
|
|
|
918
|
|
|
|
|
|
|
1; |