Bio::SeqIO game
SummaryIncluded librariesPackage variablesSynopsisDescriptionGeneral documentationMethods
Bio::SeqIO::game -- a class for parsing and writing game-XML
Package variables
No package variables defined.
Included modules
This module is not used directly, use SeqIO.
 use Bio::SeqIO;
my $in = Bio::SeqIO->new ( -file => 'file.xml', -format => 'game', -verbose => 1 ); my $seq = $in->next_seq;
Bio::SeqIO::game will parse game XML (version 1.2) or write game XML from
a Bio::SeqI implementing object. The XML is readable by the genome
annotation editor 'Apollo' ( It is not backwards compatible
with the previous version of game XML. The XML format currently used by
Apollo contains a single 'main' annotated sequence, so we will only get a
single annotated sequence in the stream when parsing a game-XML record.
No description
Methods description
next_seqcode    nextTop
 Title   : next_seq
Usage : my $seq = $seqio->next_seq;
Function: get the main sequence object
Returns : a Bio::Seq::RichSeq object
Args : none
 Title   : write_seq
Usage : $seqio->write_seq($seq)
Function: writes a sequence object as game XML
Returns : nothing
Args : a Bio::SeqI compliant object
 Title   : _getseqs
Usage : $self->_getseqs
Function: An internal method to invoke the PerlSAX XML handler and get
the sequence objects
Returns : an reference to an array with sequence object and annotations
Args : none
 Title   : _hide_dna
Usage : $seqio->_hide_dna
Function: Hide the DNA for really huge sequences
Returns : nothing
Args : none
Methods code
sub _initialize {
    my ($self, @args) = @_;
sub next_seq {
    my $self   = shift;
    my $seq_l  = $self->_getseqs;
    my $annseq = shift @{$seq_l};
    my $seq    = $annseq->[0];
    my $feats  = $annseq->[1];
    for ( @{$feats} ) {
	$seq->add_SeqFeature( $_ );

    return $seq;
sub write_seq {
    my ($self, $seq) = @_;
    my $writer = Bio::SeqIO::game::gameWriter->new($seq);
    my $xml = $writer->write_to_game;
sub _getseqs {
    my $self = shift;
    if ( defined $self->{seq_l} ) {
        return $self->{seq_l};
    else {
	my $fh = $self->_fh;
	my $text = join '', <$fh>;
	$text || $self->throw("Input file is empty or does not exist");
	my $source = $text =~ /type>(source|origin|\bregion\b)<\/type/gm ? 1 : 0;
        my $handler = Bio::SeqIO::game::gameHandler->new;
	$handler->{has_source} = $source if $source;
	$handler->{verbose} = 1 if $self->verbose;
        my $parser  = XML::Parser::PerlSAX->new( Handler => $handler );
        my $game    = $parser->parse( $text );
	$self->{seq_l} = $game->load;
sub _hide_dna {
    my $self = shift;
    my $annseqs = $self->_getseqs;

    for ( @{$annseqs} ) {
        my $seq = $_->[0];
    return 0;

General documentation
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User feedback is an integral part of the evolution of this
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Your participation is much appreciated.                  - General discussion - About the mailing lists
Support Top
Please direct usage questions or support issues to the mailing list:
rather than to the module maintainer directly. Many experienced and
reponsive experts will be able look at the problem and quickly
address it. Please include a thorough description of the problem
with code and data examples if at all possible.
Reporting BugsTop
Report bugs to the Bioperl bug tracking system to help us keep track
of the bugs and their resolution.
Bug reports can be submitted via the web:
AUTHOR - Sheldon McKayTop
The rest of the documentation details each of the object
methods. Internal methods are usually preceded with a _