From: Tara L Andrews <tla\@mit.edu>
Date: Fri, 13 Jan 2012 14:11:11 +0000 (+0100)
Subject: fix a.c. paths for parallel segmentation input
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?p=scpubgit%2Fstemmatology.git;a=commitdiff_plain;h=96dc90ecf08a45d43fd2d54b9017036ab5209dfa

fix a.c. paths for parallel segmentation input
---

diff --git a/lib/Text/Tradition/Collation.pm b/lib/Text/Tradition/Collation.pm
index bf84fce..c5bb6a1 100644
--- a/lib/Text/Tradition/Collation.pm
+++ b/lib/Text/Tradition/Collation.pm
@@ -339,7 +339,10 @@ sub relationship_valid {
 sub reading_witnesses {
 	my( $self, $reading ) = @_;
 	# We need only check either the incoming or the outgoing edges; I have
-	# arbitrarily chosen "incoming".
+	# arbitrarily chosen "incoming".  Thus, special-case the start node.
+	if( $reading eq $self->start ) {
+		return map { $_->sigil } $self->tradition->witnesses;
+	}
 	my %all_witnesses;
 	foreach my $e ( $self->sequence->edges_to( $reading ) ) {
 		my $wits = $self->sequence->get_edge_attributes( @$e );
diff --git a/lib/Text/Tradition/Parser/TEI.pm b/lib/Text/Tradition/Parser/TEI.pm
index 9b9088e..6b9734f 100644
--- a/lib/Text/Tradition/Parser/TEI.pm
+++ b/lib/Text/Tradition/Parser/TEI.pm
@@ -160,6 +160,7 @@ sub parse {
         }
         # See if we need to make an a.c. version of the witness.
         if( exists $app_ac->{$sig} ) {
+        	$DB::single = 1;
             my @uncorrected;
             push( @uncorrected, @real_sequence );
             foreach my $app ( keys %{$app_ac->{$sig}} ) {
@@ -168,10 +169,12 @@ sub parse {
                 my @new = map { _return_rdg( $_ ) } @{$app_ac->{$sig}->{$app}};
                 _replace_sequence( \@uncorrected, $start, $end, @new );
             }
-            my $source = $c->start;
+            my $source = shift @uncorrected; # the start node
+            warn "Something weird!" unless $source eq $c->start;
             foreach my $rdg ( @uncorrected ) {
-                my $has_base = grep { $_ eq $sig } $c->reading_witnesses( $rdg );
-                if( $rdg ne $c->start && !$has_base ) {
+            	my $source_base = grep { $_ eq $sig } $c->reading_witnesses( $source );
+                my $target_base = grep { $_ eq $sig } $c->reading_witnesses( $rdg );
+                unless( $source_base && $target_base ) {
                     # print STDERR sprintf( "Adding path %s from %s -> %s\n",
                     #     $sig.$c->ac_label, $source->id, $rdg->id );
                     $c->add_path( $source, $rdg, $sig.$c->ac_label );