Provided by: libbio-perl-perl_1.7.2-2_all bug


       Bio::SeqIO::swissdriver - SwissProt/UniProt handler-based push parser


         #It is probably best not to use this object directly, but
         #rather go through the SeqIO handler:

         $stream = Bio::SeqIO->new(-file => $filename,
                                   -format => 'swissdriver');

         while ( my $seq = $stream->next_seq() ) {
             # do something with $seq


       This object can transform Bio::Seq objects to and from UniProt flat file databases. The
       key difference between this parser and the tried-and-true Bio::SeqIO::swiss parser is this
       version separates the parsing and data manipulation into a 'driver' method (next_seq) and
       separate object handlers which deal with the data passed to it.

   The Driver
       The main purpose of the driver routine, in this case next_seq(), is to carve out the data
       into meaningful chunks which are passed along to relevant handlers (see below).

       Each chunk of data in the has a NAME tag attached to it, similar to that for XML parsing.
       This designates the type of data passed (annotation type or seqfeature) and the handler to
       be called for processing the data.


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       User feedback is an integral part of the evolution of this and other Bioperl modules. Send
       your comments and suggestions preferably to one of the Bioperl mailing lists.  Your
       participation is much appreciated.
                  - General discussion  - About the mailing lists

       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 Bugs
       Report bugs to the Bioperl bug tracking system to help us keep track the bugs and their
       resolution. Bug reports can be submitted via the web:

AUTHOR - Bioperl Project

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       The rest of the documentation details each of the object methods. Internal methods are
       usually preceded with a _

        Title   : next_seq
        Usage   : $seq = $stream->next_seq()
        Function: returns the next sequence in the stream
        Returns : Bio::Seq object
        Args    : none

        Title   : write_seq
        Usage   : $stream->write_seq($seq)
        Function: writes the $seq object (must be seq) to the stream
        Returns : 1 for success and 0 for error
        Args    : array of 1 to n Bio::SeqI objects

        Title   : seqhandler
        Usage   : $stream->seqhandler($handler)
        Function: Get/Set the Bio::Seq::HandlerBaseI object
        Returns : Bio::Seq::HandlerBaseI
        Args    : Bio::Seq::HandlerBaseI