Bio::SearchIO::Writer::HTMLResultWriter(3)

NAME
Bio::SearchIO::Writer::HTMLResultWriter - write a Bio::Search::ResultI in HTML

SYNOPSIS
  use Bio::SearchIO;
  use Bio::SearchIO::Writer::HTMLResultWriter;

  my $in = Bio::SearchIO->new(-format => 'blast',
                             -file   => shift @ARGV);

  my $writer = Bio::SearchIO::Writer::HTMLResultWriter->new();
  my $out = Bio::SearchIO->new(-writer => $writer);
  $out->write_result($in->next_result);

  # to filter your output
  my $MinLength = 100; # need a variable with scope outside the method
  sub hsp_filter {
      my $hsp = shift;
      return 1 if $hsp->length('total') > $MinLength;
  }
  sub result_filter {
      my $result = shift;
      return $hsp->num_hits > 0;
  }

  my $writer = Bio::SearchIO::Writer::HTMLResultWriter->new
                     (-filters => { 'HSP' => \&hsp_filter} );
  my $out = Bio::SearchIO->new(-writer => $writer);
  $out->write_result($in->next_result);

  # can also set the filter via the writer object
  $writer->filter('RESULT', \&result_filter);

DESCRIPTION
This object implements the SearchWriterI interface which will produce a set of HTML for a specific Bio::Search::Report::ReportI interface.

See Bio::SearchIO::SearchWriterI for more info on the filter method.

FEEDBACK

  Mailing Lists
User feedback is an integral part of the evolution of this and other Bioperl modules. Send your comments and suggestions preferably to the Bioperl mailing list. Your participation is much appreciated.

  bioperl-l@bioperl.org                  - General discussion
  http://bioperl.org/wiki/Mailing_lists  - About the mailing lists

  Support
Please direct usage questions or support issues to the mailing list:

bioperl-l@bioperl.org

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 of the bugs and their resolution. Bug reports can be submitted via the web:

  http://bugzilla.open-bio.org/

AUTHOR - Jason Stajich
Email jason-at-bioperl-dot-org

CONTRIBUTORS
Gary Williams G.Williams@hgmp.mrc.ac.uk

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

  new
 Title   : new
 Usage   : my $obj = Bio::SearchIO::Writer::HTMLResultWriter->new();
 Function: Builds a new Bio::SearchIO::Writer::HTMLResultWriter object
 Returns : Bio::SearchIO::Writer::HTMLResultWriter
 Args    : -filters => hashref with any or all of the keys (HSP HIT RESULT)
           which have values pointing to a subroutine reference
           which will expect to get a
           -nucleotide_url => URL sprintf string base for the nt sequences
           -protein_url => URL sprintf string base for the aa sequences
           -no_wublastlinks => boolean. Do not display WU-BLAST lines
                               even if they are parsed out.
                               Links = (1)

  remote_database_url
 Title   : remote_database_url
 Usage   : $obj->remote_database_url($type,$newval)
 Function: This should return or set a string that contains a %s which can be
           filled in with sprintf.
 Returns : value of remote_database_url
 Args    : $type - 'PROTEIN' or 'P' for protein URLS
                   'NUCLEOTIDE' or 'N' for nucleotide URLS
           $value - new value to set [optional]

  to_string
 Purpose   : Produces data for each Search::Result::ResultI in a string.
           : This is an abstract method. For some useful implementations,
           : see ResultTableWriter.pm, HitTableWriter.pm,
           : and HSPTableWriter.pm.
 Usage     : print $writer->to_string( $result_obj, @args );
 Argument  : $result_obj = A Bio::Search::Result::ResultI object
           : @args = any additional arguments used by your implementation.
 Returns   : String containing data for each search Result or any of its
           : sub-objects (Hits and HSPs).
 Throws    : n/a

  hit_link_desc
 Title   : hit_link_desc
 Usage   : $self->hit_link_desc(\&link_function);
 Function: Get/Set the function which provides an HTML
           link(s) for the given hit to be used
           within the description section at the top of the BLAST report.
           This allows a person reading the report within
           a web browser to go to one or more database entries for
           the given hit from the description section.
 Returns : Function reference
 Args    : Function reference
 See Also: L<default_hit_link_desc()>

  default_hit_link_desc
 Title   : default_hit_link_desc
 Usage   : $self->default_hit_link_desc($hit, $result)
 Function: Provides an HTML link(s) for the given hit to be used
           within the description section at the top of the BLAST report.
           This allows a person reading the report within
           a web browser to go to one or more database entries for
           the given hit from the description section.
 Returns : string containing HTML markup "<a href...")

           The default implementation returns an HTML link to the
           URL supplied by the remote_database_url() method
           and using the identifier supplied by the id_parser() method.
           It will use the NCBI GI if present, and the accession if not.

 Args    : First argument is a Bio::Search::Hit::HitI
           Second argument is a Bio::Search::Result::ResultI

See Also: hit_link_align, remote_database, id_parser

  hit_link_align
 Title   : hit_link_align
 Usage   : $self->hit_link_align(\&link_function);
 Function: Get/Set the function which provides an HTML link(s)
           for the given hit to be used
           within the HSP alignment section of the BLAST report.
           This allows a person reading the report within
           a web browser to go to one or more database entries for
           the given hit from the alignment section.
 Returns : string containing HTML markup "<a href...")

           The default implementation delegates to hit_link_desc().

 Args    : First argument is a Bio::Search::Hit::HitI
           Second argument is a Bio::Search::Result::ResultI

See Also: hit_link_desc, remote_database, id_parser

  hit_desc_line
 Title   : hit_desc_line
 Usage   : $self->hit_desc_line(\&link_function);
 Function: Get/Set the function which provides HTML for the description
           information from a hit. This allows one to parse
           the rest of the description and split up lines, add links, etc.
 Returns : Function reference
 Args    : Function reference
 See Also: L<default_hit_link_desc()>

  default_hit_desc_line
 Title   : default_hit_desc_line
 Usage   : $self->default_hit_desc_line($hit, $result)
 Function: Parses the description line information, splits based on the
           hidden \x01 between independent descriptions, checks the lines for
           possible web links, and adds HTML link(s) for the given hit to be
           used.

 Returns : string containing HTML markup "<a href...")
           The default implementation returns an HTML link to the
           URL supplied by the remote_database_url() method
           and using the identifier supplied by the id_parser() method.
           It will use the NCBI GI if present, and the accession if not.

 Args    : First argument is a Bio::Search::Hit::HitI
           Second argument is a Bio::Search::Result::ResultI

See Also: hit_link_align, remote_database, id_parser

  start_report
  Title   : start_report
  Usage   : $index->start_report( CODE )
  Function: Stores or returns the code to
            write the start of the <HTML> block, the <TITLE> block
            and the start of the <BODY> block of HTML.   Useful
            for (for instance) specifying alternative
            HTML if you are embedding the output in
            an HTML page which you have already started.
            (For example a routine returning a null string).
            Returns \&default_start_report (see below) if not
            set.
  Example : $index->start_report( \&my_start_report )
  Returns : ref to CODE if called without arguments
  Args    : CODE

  default_start_report
 Title   : default_start_report
 Usage   : $self->default_start_report($result)
 Function: The default method to call when starting a report.
 Returns : sting
 Args    : First argument is a Bio::Search::Result::ResultI

  title
 Title   : title
 Usage   : $self->title($CODE)

  Function: Stores or returns the code to provide HTML for the given
            BLAST report that will appear at the top of the BLAST report
            HTML output.  Useful for (for instance) specifying
            alternative routines to write your own titles.
            Returns \&default_title (see below) if not
            set.
  Example : $index->title( \&my_title )
  Returns : ref to CODE if called without arguments
  Args    : CODE

  default_title
 Title   : default_title
 Usage   : $self->default_title($result)
 Function: Provides HTML for the given BLAST report that will appear
           at the top of the BLAST report HTML output.
 Returns : string containing HTML markup
           The default implementation returns <CENTER> <H1> HTML
           containing text such as:
           "Bioperl Reformatted HTML of BLASTP Search Report
                     for gi|1786183|gb|AAC73113.1|"
 Args    : First argument is a Bio::Search::Result::ResultI

  introduction
 Title   : introduction
 Usage   : $self->introduction($CODE)

  Function: Stores or returns the code to provide HTML for the given
            BLAST report detailing the query and the
            database information.
            Useful for (for instance) specifying
            routines returning alternative introductions.
            Returns \&default_introduction (see below) if not
            set.
  Example : $index->introduction( \&my_introduction )
  Returns : ref to CODE if called without arguments
  Args    : CODE

  default_introduction
 Title   : default_introduction
 Usage   : $self->default_introduction($result)
 Function: Outputs HTML to provide the query
           and the database information
 Returns : string containing HTML
 Args    : First argument is a Bio::Search::Result::ResultI
           Second argument is string holding literature citation

  end_report
 Title   : end_report
 Usage   : $self->end_report()
 Function: The method to call when ending a report, this is
           mostly for cleanup for formats which require you to
           have something at the end of the document (</BODY></HTML>)
           for HTML
 Returns : string
 Args    : none

  id_parser
  Title   : id_parser
  Usage   : $index->id_parser( CODE )
  Function: Stores or returns the code used by record_id to
            parse the ID for record from a string.  Useful
            for (for instance) specifying a different
            parser for different flavours of FASTA file.
            Returns \&default_id_parser (see below) if not
            set. If you supply your own id_parser
            subroutine, then it should expect a fasta
            description line.  An entry will be added to
            the index for each string in the list returned.
  Example : $index->id_parser( \&my_id_parser )
  Returns : ref to CODE if called without arguments
  Args    : CODE

  default_id_parser
  Title   : default_id_parser
  Usage   : $id = default_id_parser( $header )
  Function: The default Fasta ID parser for Fasta.pm
            Returns $1 from applying the regexp /^>\s*(\S+)/
            to $header.
  Returns : ID string
            The default implementation checks for NCBI-style
            identifiers in the given string ('gi|12345|AA54321').
            For these IDs, it extracts the GI and accession and
            returns a two-element list of strings (GI, acc).
  Args    : a fasta header line string

  algorithm_reference
 Title   : algorithm_reference
 Usage   : my $reference = $writer->algorithm_reference($result);
 Function: Returns the appropriate Bibliographic reference for the
           algorithm format being produced
 Returns : String
 Args    : L<Bio::Search::Result::ResultI> to reference

  Methods Bio::SearchIO::SearchWriterI
Bio::SearchIO::SearchWriterI inherited methods.

  filter
 Title   : filter
 Usage   : $writer->filter('hsp', \&hsp_filter);
 Function: Filter out either at HSP,Hit,or Result level
 Returns : none
 Args    : string => data type,
           CODE reference

  no_wublastlinks
 Title   : no_wublastlinks
 Usage   : $obj->no_wublastlinks($newval)
 Function: Get/Set boolean value regarding whether or not to display
           Link = (1)
           type output in the report output (WU-BLAST only)
 Returns : boolean
 Args    : on set, new boolean value (a scalar or undef, optional)