use strict;
use warnings;
-use Text::Tradition::Parser::GraphML;
+use Text::Tradition::Parser::GraphML qw/ graphml_parse populate_witness_path /;
=head1 NAME
Text::Tradition::Parser::GraphML
+=head1 SYNOPSIS
+
+ use Text::Tradition;
+
+ my $t_from_file = Text::Tradition->new(
+ 'name' => 'my text',
+ 'input' => 'Self',
+ 'file' => '/path/to/tradition.xml'
+ );
+
+ my $t_from_string = Text::Tradition->new(
+ 'name' => 'my text',
+ 'input' => 'Self',
+ 'string' => $tradition_xml,
+ );
+
=head1 DESCRIPTION
Parser module for Text::Tradition to read in its own GraphML output format.
-TODO document what this format is.
+GraphML is a relatively simple graph description language; a 'graph' element
+can have 'node' and 'edge' elements, and each of these can have simple 'data'
+elements for attributes to be saved.
-=head1 METHODS
+The graph itself has attributes as in the Collation object:
+
+=over
+
+=item * linear
+
+=item * ac_label
+
+=item * baselabel
+
+=item * wit_list_separator
+
+=back
+
+The node objects have the following attributes:
+
+=over
+
+=item * name
+
+=item * reading
+
+=item * identical
+
+=item * rank
+
+=item * class
+
+=back
+
+The edge objects have the following attributes:
=over
-=item B<parse>
+=item * class
+
+=item * witness (for 'path' class edges)
+
+=item * extra (for 'path' class edges)
+
+=item * relationship (for 'relationship' class edges)
+
+=item * equal_rank (for 'relationship' class edges)
+
+=item * non_correctable (for 'relationship' class edges)
-parse( $graph, $graphml_string );
+=item * non_independent (for 'relationship' class edges)
-Takes an initialized Text::Tradition::Graph object and a string
-containing the GraphML; creates the appropriate nodes and edges on the
-graph.
+=back
+
+=head1 METHODS
+
+=head2 B<parse>
+
+parse( $graph, $opts );
+
+Takes an initialized Text::Tradition object and a set of options; creates
+the appropriate nodes and edges on the graph. The options hash should
+include either a 'file' argument or a 'string' argument, depending on the
+source of the XML to be parsed.
+
+=begin testing
+
+use Text::Tradition;
+binmode STDOUT, ":utf8";
+binmode STDERR, ":utf8";
+eval { no warnings; binmode $DB::OUT, ":utf8"; };
+
+my $tradition = 't/data/florilegium_graphml.xml';
+my $t = Text::Tradition->new(
+ 'name' => 'inline',
+ 'input' => 'Self',
+ 'file' => $tradition,
+ );
+
+is( ref( $t ), 'Text::Tradition', "Parsed our own GraphML" );
+if( $t ) {
+ is( scalar $t->collation->readings, 319, "Collation has all readings" );
+ is( scalar $t->collation->paths, 2854, "Collation has all paths" );
+ is( scalar $t->witnesses, 13, "Collation has all witnesses" );
+}
+
+=end testing
=cut
-# TODO share these with Collation.pm somehow
my( $IDKEY, $TOKENKEY, $TRANSPOS_KEY, $RANK_KEY, $CLASS_KEY,
$SOURCE_KEY, $TARGET_KEY, $WITNESS_KEY, $EXTRA_KEY, $RELATIONSHIP_KEY )
= qw/ name reading identical rank class
source target witness extra relationship/;
sub parse {
- my( $tradition, $graphml_str ) = @_;
+ my( $tradition, $opts ) = @_;
+ my $graph_data = graphml_parse( $opts );
- # TODO this is begging for stream parsing instead of multiple loops.
- my $graph_data = Text::Tradition::Parser::GraphML::parse( $graphml_str );
-
my $collation = $tradition->collation;
my %witnesses;
-
+
+ # Set up the graph-global attributes. They will appear in the
+ # hash under their accessor names.
+ print STDERR "Setting graph globals\n";
+ $tradition->name( $graph_data->{'name'} );
+ foreach my $gkey ( keys %{$graph_data->{'attr'}} ) {
+ my $val = $graph_data->{'attr'}->{$gkey};
+ $collation->$gkey( $val );
+ }
+
# Add the nodes to the graph.
- # TODO Are we adding extra start/end nodes?
my $extra_data = {}; # Keep track of data that needs to be processed
# after the nodes & edges are created.
my $rank = delete $node_data{$RANK_KEY};
# Create the node. Current valid classes are common and meta.
- # Everything else is a normal reading.
+ # Everything else is a normal reading.
my $gnode = $collation->add_reading( $nodeid );
$gnode->text( $reading );
$gnode->make_common if $class eq 'common';
$gnode->is_meta( 1 ) if $class eq 'meta';
+ # This is a horrible hack.
+ $gnode->is_lacuna( $reading =~ /^\#LACUNA/ );
$gnode->rank( $rank ) if defined $rank;
# Now save the data that we need for post-processing,
# Now add the edges.
print STDERR "Adding graph edges\n";
+ my $has_ante_corr = {};
foreach my $e ( @{$graph_data->{'edges'}} ) {
my $from = $e->{$SOURCE_KEY};
my $to = $e->{$TARGET_KEY};
$tradition->add_witness( sigil => $wit );
$witnesses{$wit} = 1;
}
+ $has_ante_corr->{$wit} = 1 if $extra;
} elsif( $class eq 'relationship' ) {
# We need the metadata about the relationship.
my $opts = { 'type' => $e->{$RELATIONSHIP_KEY} };
## Deal with node information (transposition, relationships, etc.) that
## needs to be processed after all the nodes are created.
print STDERR "Adding second-pass node data\n";
- my $linear = undef;
foreach my $nkey ( keys %$extra_data ) {
foreach my $edkey ( keys %{$extra_data->{$nkey}} ) {
my $this_reading = $collation->reading( $nkey );
if( $edkey eq $TRANSPOS_KEY ) {
my $other_reading = $collation->reading( $extra_data->{$nkey}->{$edkey} );
- # We evidently have a linear graph.
- $linear = 1;
$this_reading->set_identical( $other_reading );
} else {
warn "Unfamiliar reading node data $edkey for $nkey";
}
}
}
- $collation->linear( $linear );
- # TODO We probably need to set the $witness->path arrays for each wit.
+
+ # Set the $witness->path arrays for each wit.
+ populate_witness_path( $tradition, $has_ante_corr );
}
+1;
+
+=head1 BUGS / TODO
+
+=over
+
+=item * Make this into a stream parser with GraphML
+
+=item * Simply field -> attribute correspondence for nodes and edges
+
+=item * Share key name constants with Collation.pm
+
=back
=head1 LICENSE
=head1 AUTHOR
-Tara L Andrews, aurum@cpan.org
-
-=cut
-
-1;
+Tara L Andrews E<lt>aurum@cpan.orgE<gt>
projects / scpubgit/stemmatology.git / blobdiff