1 package Text::Tradition::Witness;
3 use Moose::Util::TypeConstraints;
5 # Sigil. Required identifier for a witness.
12 # Text. This is an array of strings (i.e. word tokens).
13 # TODO Think about how to handle this for the case of pre-prepared
14 # collations, where the tokens are in the graph already.
17 isa => 'ArrayRef[Str]',
18 predicate => 'has_text',
21 # Source. This is where we read in the witness, if not from a
22 # pre-prepared collation. It is probably a filename.
26 predicate => 'has_source',
31 isa => 'ArrayRef[Text::Tradition::Collation::Reading]',
32 predicate => 'has_path',
38 find_type_constraint('Int')->check( $_->[0] ) &&
39 find_type_constraint('Int')->check( $_->[1] ) &&
40 find_type_constraint('ArrayRef[Text::Tradition::Collation::Reading]')->check( $_->[2] );
42 message { 'Correction must be a tuple of [offset, length, list]' };
46 isa => 'ArrayRef[Correction]',
47 predicate => 'has_ante_corr',
53 if( $self->has_source ) {
54 # Read the file and initialize the text.
55 open( WITNESS, $self->source ) or die "Could not open "
56 . $self->file . "for reading";
57 # TODO support TEI as well as plaintext, sometime
61 push( @words, split( /\s+/, $_ ) );
64 $self->text( \@words );
68 # If the text is not present, and the path is, and this is a 'get'
69 # request, generate text from path.
74 if( $self->has_path && !$self->has_text && !@_ ) {
75 my @words = map { $_->label } @{$self->path};
76 $self->$orig( \@words );
82 sub uncorrected_path {
86 push( @new_path, @{$self->path} );
88 foreach my $change ( @{$self->ante_corr} ) {
89 my( $offset, $length, $items ) = @$change;
90 my $realoffset = $offset + $drift;
91 splice( @new_path, $realoffset, $length, @$items );
92 $drift += @$items - $length;
99 __PACKAGE__->meta->make_immutable;