working with new base text merge routine, up to line 25

[scpubgit/stemmatology.git] / lib / Text / Tradition.pm

diff --git a/lib/Text/Tradition.pm b/lib/Text/Tradition.pm
index d376c86..c2deeae 100644 (file)
--- a/lib/Text/Tradition.pm
+++ b/lib/Text/Tradition.pm
@@ -1,43 +1,36 @@
 package Text::Tradition;
 
-use Text::Tradition::Witness;
-use Text::Tradition::Collation;
+use Module::Load;
 use Moose;
+use Text::Tradition::Collation;
+use Text::Tradition::Witness;
 
 has 'collation' => (
-                   is => 'ro',
-                   isa => 'Text::Tradition::Collation',
-                   );
+    is => 'ro',
+    isa => 'Text::Tradition::Collation',
+    writer => '_save_collation',
+    );
 
 has 'witnesses' => (
-                   traits => ['Array'],
-                   is => 'rw',
-                   isa => 'ArrayRef[Text::Tradition::Witness]',
-                   handles => {
-                       all_options    => 'elements',
-                       add_option     => 'push',
-                       map_options    => 'map',
-                       option_count   => 'count',
-                       sorted_options => 'sort',
-                   },
-                   );
+    traits => ['Array'],
+    is => 'rw',
+    isa => 'ArrayRef[Text::Tradition::Witness]',
+    handles => {
+       all    => 'elements',
+       add    => 'push',
+    },
+    default => sub { [] },
+    );
 
-around BUILDARGS => sub {
-    my $orig = shift;
-    my $class = shift;
+sub BUILD {
+    my( $self, $init_args ) = @_;
 
-    # Now @_ contains the original constructor args.  Make a
-    # collation argument and a witnesses argument.
-    my %init_args = @_;
-    my %member_objects = { 'collation' => undef,
-                          'witnesses' => [] };
-
-    if( exists $init_args{'witnesses'} ) {
+    if( exists $init_args->{'witnesses'} ) {
        # We got passed an uncollated list of witnesses.  Make a
        # witness object for each witness, and then send them to the
        # collator.
        my $autosigil = 0;
-       foreach my $wit ( %{$init_args{'witnesses'}} ) {
+       foreach my $wit ( %{$init_args->{'witnesses'}} ) {
            # Each item in the list is either a string or an arrayref.
            # If it's a string, it is a filename; if it's an arrayref,
            # it is a tuple of 'sigil, file'.  Handle either case.
@@ -50,19 +43,67 @@ around BUILDARGS => sub {
                          'file' => $wit };
                $autosigil++;
            }
-           push( @{$member_objects{'witnesses'}},
-                 Text::Tradition::Witness->new( $args ) );
-           # Now how to collate these?
+           $self->witnesses->push( Text::Tradition::Witness->new( $args ) );
+           # TODO Now how to collate these?
        }
     } else {
-       $member_objects{'collation'} = 
-           Text::Tradition::Collation->new( %init_args );
-       @{$member_objects{'witnesses'}} = 
-           $member_objects->{'collation'}->create_witnesses();
+       # Else we need to parse some collation data.  Make a Collation object
+       my $collation = Text::Tradition::Collation->new( %$init_args,
+                                                       'tradition' => $self );
+       $self->_save_collation( $collation );
+
+       # Call the appropriate parser on the given data
+       my @formats = grep { /^(GraphML|CSV|CTE|TEI)$/ } keys( %$init_args );
+       my $format = shift( @formats );
+       unless( $format ) {
+           warn "No data given to create a collation; will initialize an empty one";
+       }
+       if( $format && $format =~ /^(CSV|CTE)$/ && 
+           !exists $init_args->{'base'} ) {
+           warn "Cannot make a collation from $format without a base text";
+           return;
+       }
+
+       # Starting point for all texts
+       my $last_node = $collation->add_reading( '#START#' );
+
+       # Now do the parsing. 
+       my @sigla;
+       if( $format ) {
+           my @parseargs;
+           if( $format =~ /^(CSV|CTE)$/ ) {
+               $init_args->{'data'} = $init_args->{$format};
+               $init_args->{'format'} = $format;
+               $format = 'BaseText';
+               @parseargs = %$init_args;
+           } else {
+               @parseargs = ( $init_args->{ $format } ); 
+           }
+           my $mod = "Text::Tradition::Parser::$format";
+           load( $mod );
+           $mod->can('parse')->( $self, @parseargs );
+       }
+    }
+}
+
+sub witness {
+    my( $self, $sigil ) = @_;
+    my $requested_wit;
+    foreach my $wit ( @{$self->witnesses} ) {
+       $requested_wit = $wit if $wit->sigil eq $sigil;
     }
+    # We depend on an undef return value for no such witness.
+    # warn "No such witness $sigil" unless $requested_wit;
+    return $requested_wit;
+}
+       
 
-    return $class->$orig( %member_objects );
-};
+sub add_witness {
+    my $self = shift;
+    my $new_wit = Text::Tradition::Witness->new( @_ );
+    push( @{$self->witnesses}, $new_wit );
+    return $new_wit;
+}
 
 # The user will usually be instantiating a Tradition object, and
 # examining its collation.  The information about the tradition can