Raw content of Bio::SearchIO::hmmer
<![CDATA[# $Id: hmmer.pm,v 1.13.2.3 2003/08/07 15:40:36 jason Exp $
#
# BioPerl module for Bio::SearchIO::hmmer
#
# Cared for by Jason Stajich <jason@bioperl.org>
#
# Copyright Jason Stajich
#
# You may distribute this module under the same terms as perl itself
# POD documentation - main docs before the code
=head1 NAME
Bio::SearchIO::hmmer - A parser for HMMER output (hmmpfam, hmmsearch)
=head1 SYNOPSIS
# do not use this class directly it is available through Bio::SearchIO
use Bio::SearchIO;
my $in = new Bio::SearchIO(-format => 'hmmer',
-file => 't/data/L77119.hmmer');
while( my $result = $in->next_result ) {
# this is a Bio::Search::Result::HMMERResult object
print $result->query_name(), " for HMM ", $result->hmm_name(), "\n";
while( my $hit = $result->next_hit ) {
print $hit->name(), "\n";
while( my $hsp = $hit->next_hsp ) {
print "length is ", $hsp->length(), "\n";
}
}
}
=head1 DESCRIPTION
This object implements a parser for HMMER output.
=head1 FEEDBACK
=head2 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/MailList.shtml - About the mailing lists
=head2 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
email or the web:
bioperl-bugs@bioperl.org
http://bugzilla.bioperl.org/
=head1 AUTHOR - Jason Stajich
Email jason@bioperl.org
Describe contact details here
=head1 CONTRIBUTORS
Additional contributors names and emails here
=head1 APPENDIX
The rest of the documentation details each of the object methods.
Internal methods are usually preceded with a _
=cut
package Bio::SearchIO::hmmer;
use vars qw(@ISA);
use strict;
use vars qw(@ISA %MAPPING %MODEMAP
$DEFAULT_HSP_FACTORY_CLASS
$DEFAULT_HIT_FACTORY_CLASS
$DEFAULT_RESULT_FACTORY_CLASS
);
use Bio::SearchIO;
use Bio::Factory::ObjectFactory;
@ISA = qw(Bio::SearchIO );
BEGIN {
# mapping of HMMER items to Bioperl hash keys
%MODEMAP = ('HMMER_Output' => 'result',
'Hit' => 'hit',
'Hsp' => 'hsp'
);
%MAPPING = (
'Hsp_bit-score' => 'HSP-bits',
'Hsp_score' => 'HSP-score',
'Hsp_evalue' => 'HSP-evalue',
'Hsp_query-from' => 'HSP-query_start',
'Hsp_query-to' => 'HSP-query_end',
'Hsp_hit-from' => 'HSP-hit_start',
'Hsp_hit-to' => 'HSP-hit_end',
'Hsp_positive' => 'HSP-conserved',
'Hsp_identity' => 'HSP-identical',
'Hsp_gaps' => 'HSP-hsp_gaps',
'Hsp_hitgaps' => 'HSP-hit_gaps',
'Hsp_querygaps' => 'HSP-query_gaps',
'Hsp_qseq' => 'HSP-query_seq',
'Hsp_hseq' => 'HSP-hit_seq',
'Hsp_midline' => 'HSP-homology_seq',
'Hsp_align-len' => 'HSP-hsp_length',
'Hsp_query-frame'=> 'HSP-query_frame',
'Hsp_hit-frame' => 'HSP-hit_frame',
'Hit_id' => 'HIT-name',
'Hit_len' => 'HIT-length',
'Hit_accession' => 'HIT-accession',
'Hit_desc' => 'HIT-description',
'Hit_signif' => 'HIT-significance',
'Hit_score' => 'HIT-score',
'HMMER_program' => 'RESULT-algorithm_name',
'HMMER_version' => 'RESULT-algorithm_version',
'HMMER_query-def' => 'RESULT-query_name',
'HMMER_query-len' => 'RESULT-query_length',
'HMMER_query-acc' => 'RESULT-query_accession',
'HMMER_querydesc' => 'RESULT-query_description',
'HMMER_hmm' => 'RESULT-hmm_name',
'HMMER_seqfile' => 'RESULT-sequence_file',
);
$DEFAULT_HIT_FACTORY_CLASS = 'Bio::Factory::HMMERHitFactory';
$DEFAULT_HSP_FACTORY_CLASS = 'Bio::Factory::HMMERHSPFactory';
$DEFAULT_RESULT_FACTORY_CLASS = 'Bio::Factory::HMMERResultFactory';
}
=head2 new
Title : new
Usage : my $obj = new Bio::SearchIO::hmmer();
Function: Builds a new Bio::SearchIO::hmmer object
Returns : Bio::SearchIO::hmmer
Args : -fh/-file => HMMER filename
-format => 'hmmer'
=cut
sub _initialize {
my ($self,@args) = @_;
$self->SUPER::_initialize(@args);
my $handler = $self->_eventHandler;
# new object initialization code
$handler->register_factory('result',
Bio::Factory::ObjectFactory->new(
-type => 'Bio::Search::Result::HMMERResult',
-interface => 'Bio::Search::Result::ResultI'));
$handler->register_factory('hit',
Bio::Factory::ObjectFactory->new(
-type => 'Bio::Search::Hit::HMMERHit',
-interface => 'Bio::Search::Hit::HitI'));
$handler->register_factory('hsp',
Bio::Factory::ObjectFactory->new(
-type => 'Bio::Search::HSP::HMMERHSP',
-interface => 'Bio::Search::HSP::HSPI'));
$self->{'_hmmidline'} = 'HMMER 2.2g (August 2001)';
}
=head2 next_result
Title : next_result
Usage : my $hit = $searchio->next_result;
Function: Returns the next Result from a search
Returns : Bio::Search::Result::ResultI object
Args : none
=cut
sub next_result{
my ($self) = @_;
my $seentop = 0;
my $reporttype;
my ($last,@hitinfo,@hspinfo,%hspinfo,%hitinfo);
my @alignemnt_lines;
$self->start_document();
while( defined ($_ = $self->_readline )) {
my $lineorig = $_;
chomp;
if( /^HMMER\s+(\S+)\s+\((.+)\)/o ) {
my ($prog,$version) = split;
if( $seentop ) {
$self->_pushback($_);
$self->end_element({'Name' => 'HMMER_Output'});
return $self->end_document();
}
$self->{'_hmmidline'} = $_;
$self->start_element({'Name' => 'HMMER_Output'});
$self->{'_result_count'}++;
$seentop = 1;
if( defined $last ) {
($reporttype) = split(/\s+/,$last);
$self->element({'Name' => 'HMMER_program',
'Data' => uc ($reporttype)});
}
$self->element({'Name' => 'HMMER_version',
'Data' => $version});
} elsif( s/^HMM file:\s+//o ) {
$self->{'_hmmfileline'} = $lineorig;
$self->element({'Name' => 'HMMER_hmm',
'Data' => $_});
} elsif( s/^Sequence\s+(file|database):\s+//o ) {
$self->{'_hmmseqline'} = $lineorig;
$self->element({'Name' => 'HMMER_seqfile',
'Data' => $_});
} elsif( s/^Query(\s+(sequence|HMM))?:\s+//o) {
if( ! $seentop ) {
# we're in a multi-query report
$self->_pushback($self->{'_hmmidline'});
$self->_pushback($self->{'_hmmfileline'});
$self->_pushback($self->{'_hmmseqline'});
$self->_pushback($lineorig);
next;
}
s/\s+$//;
$self->element({'Name' => 'HMMER_query-def',
'Data' => $_});
} elsif( s/^Accession:\s+//o ) {
s/\s+$//;
$self->element({'Name' => 'HMMER_query-acc',
'Data' => $_});
} elsif( s/^Description:\s+//o ) {
s/\s+$//;
$self->element({'Name' => 'HMMER_querydesc',
'Data' => $_});
} elsif( defined $self->{'_reporttype'} &&
$self->{'_reporttype'} eq 'HMMSEARCH' ) {
# PROCESS HMMSEARCH RESULTS HERE
if( /^Scores for complete sequences/o ) {
while( defined($_ = $self->_readline) ) {
last if( /^\s+$/);
next if( /^Sequence\s+Description/o || /^\-\-\-/o );
my @line = split;
my ($name, $n,$evalue,$score)= (shift @line,
pop @line,
pop @line,
pop @line);
my $desc = join(' ', @line);
push @hitinfo, [ $name, $desc,$evalue,$score];
$hitinfo{$name} = $#hitinfo;
}
} elsif( /^Parsed for domains:/o ) {
@hspinfo = ();
while( defined($_ = $self->_readline) ) {
last if( /^\s+$/);
next if( /^(Model|Sequence)\s+Domain/o || /^\-\-\-/o );
if( my ($n,$domainnum,$domainct, @vals) =
(m!^(\S+)\s+ # host name
(\d+)/(\d+)\s+ # num/num (ie 1 of 2)
(\d+)\s+(\d+).+? # sequence start and end
(\d+)\s+(\d+)\s+ # hmm start and end
\S+\s+ # []
(\S+)\s+ # score
(\S+) # evalue
\s*$!ox ) ) {
# array lookup so that we can get rid of things
# when they've been processed
my $info = $hitinfo[$hitinfo{$n}];
if( !defined $info ) {
$self->warn("Incomplete Sequence information, can't find $n hitinfo says $hitinfo{$n}");
next;
}
push @hspinfo, [ $n, @vals];
}
}
} elsif( /^Alignments of top/o ) {
my ($prelength,$lastdomain,$count,$width);
$count = 0;
my %domaincounter;
my $second_tier=0;
while( defined($_ = $self->_readline) ) {
next if( /^Align/o ||
/^\s+RF\s+[x\s]+$/o);
if( /^Histogram/o || m!^//!o ) {
if( $self->in_element('hsp')) {
$self->end_element({'Name' => 'Hsp'});
}
if( $self->within_element('hit')) {
$self->end_element({'Name' => 'Hit'});
}
last;
}
chomp;
if( /^\s*(.+):\s+domain\s+(\d+)\s+of\s+(\d+)\,\s+from\s+(\d+)\s+to\s+(\d+)/o ) {
my ($name,$domainct,$domaintotal,
$from,$to) = ($1,$2,$3,$4,$5);
$domaincounter{$name}++;
if( ! defined $lastdomain || $lastdomain ne $name ) {
if( $self->within_element('hit') ) {
if( $self->within_element('hsp') ) {
$self->end_element({'Name' => 'Hsp'});
}
$self->end_element({'Name' => 'Hit'});
}
$self->start_element({'Name' => 'Hit'});
my $info = [@{$hitinfo[$hitinfo{$name}] || $self->throw("Could not find hit info for $name: Insure that your database contains only unique sequence names")}];
if( $info->[0] ne $name ) {
$self->throw("Somehow the Model table order does not match the order in the domains (got ".$info->[0].", expected $name)");
}
$self->element({'Name' => 'Hit_id',
'Data' => shift @{$info}});
$self->element({'Name' => 'Hit_desc',
'Data' => shift @{$info}});
$self->element({'Name' => 'Hit_signif',
'Data' => shift @{$info}});
$self->element({'Name' => 'Hit_score',
'Data' => shift @{$info}});
}
$self->end_element({'Name' => 'Hsp'})
if $self->in_element('hsp');
$self->start_element({'Name' => 'Hsp'});
$self->element({'Name' => 'Hsp_identity',
'Data' => 0});
$self->element({'Name' => 'Hsp_positive',
'Data' => 0});
my $HSPinfo = shift @hspinfo;
my $id = shift @$HSPinfo;
if( $id ne $name ) {
$self->throw("Somehow the domain list details do not match the table (got $id, expected $name)");
}
if( $domaincounter{$name} == $domaintotal) {
$hitinfo[$hitinfo{$name}] = undef;
}
$self->element({'Name' => 'Hsp_hit-from',
'Data' => shift @$HSPinfo});
$self->element({'Name' => 'Hsp_hit-to',
'Data' => shift @$HSPinfo});
$self->element({'Name' => 'Hsp_query-from',
'Data' => shift @$HSPinfo});
$self->element({'Name' => 'Hsp_query-to',
'Data' => shift @$HSPinfo});
$self->element({'Name' => 'Hsp_score',
'Data' => shift @$HSPinfo});
$self->element({'Name' => 'Hsp_evalue',
'Data' => shift @$HSPinfo});
$lastdomain = $name;
} else {
# Might want to change this so that it
# accumulates all the of the alignment lines into
# three array slots and then tests for the
# end of the line
if( /^(\s+\*\-\>)(\S+)/o ) { # start of domain
$prelength = CORE::length($1);
$width = 0;
# $width = CORE::length($2);
$self->element({'Name' =>'Hsp_qseq',
'Data' => $2});
$count = 0;
$second_tier = 0;
} elsif ( /^(\s+)(\S+)\<\-\*\s*$/o ) { #end of domain
$self->element({'Name' =>'Hsp_qseq',
'Data' => $2});
$width = CORE::length($2);
$count = 0;
} elsif( ($count != 1 && /^\s+$/o) ||
CORE::length($_) == 0 ||
/^\s+\-?\*\s*$/ ) {
next;
} elsif( $count == 0 ) {
$prelength -= 3 unless ($second_tier++);
unless( defined $prelength) {
# $self->warn("prelength not set");
next;
}
$self->element({'Name' => 'Hsp_qseq',
'Data' => substr($_,$prelength)});
} elsif( $count == 1) {
if( ! defined $prelength ) {
$self->warn("prelength not set");
}
if( $width ) {
$self->element({'Name' => 'Hsp_midline',
'Data' => substr($_,
$prelength,
$width)});
} else {
$self->debug( "midline is $_\n") if( CORE::length($_) <= $prelength && $self->verbose > 0);
$self->element({'Name' => 'Hsp_midline',
'Data' => substr($_,
$prelength)});
}
} elsif( $count == 2) {
if( /^\s+(\S+)\s+(\d+|\-)\s+(\S*)\s+(\d+|\-)/o ) {
$self->element({'Name' => 'Hsp_hseq',
'Data' => $3});
} else {
$self->warn("unrecognized line: $_\n");
}
}
$count = 0 if $count++ >= 2;
}
}
} elsif( /^Histogram/o || m!^//!o ) {
while( my $HSPinfo = shift @hspinfo ) {
my $id = shift @$HSPinfo;
my $info = [@{$hitinfo[$hitinfo{$id}]}];
next unless defined $info;
$self->start_element({'Name' => 'Hit'});
$self->element({'Name' => 'Hit_id',
'Data' => shift @{$info}});
$self->element({'Name' => 'Hit_desc',
'Data' => shift @{$info}});
$self->element({'Name' => 'Hit_signif',
'Data' => shift @{$info}});
$self->element({'Name' => 'Hit_score',
'Data' => shift @{$info}});
$self->start_element({'Name' => 'Hsp'});
$self->element({'Name' => 'Hsp_query-from',
'Data' => shift @$HSPinfo});
$self->element({'Name' => 'Hsp_query-to',
'Data' => shift @$HSPinfo});
$self->element({'Name' => 'Hsp_hit-from',
'Data' => shift @$HSPinfo});
$self->element({'Name' => 'Hsp_hit-to',
'Data' => shift @$HSPinfo});
$self->element({'Name' => 'Hsp_score',
'Data' => shift @$HSPinfo});
$self->element({'Name' => 'Hsp_evalue',
'Data' => shift @$HSPinfo});
$self->element({'Name' => 'Hsp_identity',
'Data' => 0});
$self->element({'Name' => 'Hsp_positive',
'Data' => 0});
$self->element({'Name' => 'Hsp_positive',
'Data' => 0});
$self->end_element({'Name' => 'Hsp'});
$self->end_element({'Name' => 'Hit'});
}
@hitinfo = ();
%hitinfo = ();
last;
}
} elsif( defined $self->{'_reporttype'} &&
$self->{'_reporttype'} eq 'HMMPFAM' ) {
if( /^Scores for sequence family/o ) {
while( defined($_ = $self->_readline) ) {
last if( /^\s+$/);
next if( /^Model\s+Description/o || /^\-\-\-/o );
chomp;
my @line = split;
my ($model,$n,$evalue,$score) = (shift @line,
pop @line,
pop @line,
pop @line);
my $desc = join(' ', @line);
push @hitinfo, [ $model, $desc,$score,$evalue,$n];
$hitinfo{$model} = $#hitinfo;
}
} elsif( /^Parsed for domains:/o ) {
@hspinfo = ();
while( defined($_ = $self->_readline) ) {
last if( /^\s+$/);
next if( /^Model\s+Domain/o || /^\-\-\-/o );
chomp;
if( my ($n,$domainnum,$domainct,@vals) =
(m!^(\S+)\s+ # domain name
\s+(\d+)/(\d+)\s+ # domain num out of num
(\d+)\s+(\d+).+? # seq start, end
(\d+)\s+(\d+)\s+ # hmm start, end
\S+\s+ # []
(\S+)\s+ # score
(\S+) # evalue
\s*$!ox ) ) {
my $hindex = $hitinfo{$n};
if( ! defined $hindex ) {
push @hitinfo, [ $n, '',$vals[5],$vals[6],
$domainct];
$hitinfo{$n} = $#hitinfo;
$hindex = $#hitinfo;
}
my $info = $hitinfo[$hindex];
if( ! defined $info ) {
$self->warn("incomplete Domain information, can't find $n hitinfo says $hitinfo{$n}");
next;
}
push @hspinfo, [ $n, @vals];
}
}
} elsif( /^Alignments of top/o ) {
my ($prelength,$lastdomain,$count,$width);
$count = 0;
my $second_tier=0;
while( defined($_ = $self->_readline) ) {
next if( /^Align/o || /^\s+RF\s+[x\s]+$/o);
if( /^Histogram/o || m!^//!o || /^Query sequence/o ) {
if( $self->in_element('hsp')) {
$self->end_element({'Name' => 'Hsp'});
}
if( $self->in_element('hit') ) {
$self->end_element({'Name' => 'Hit'});
}
$self->end_element({'Name' => 'HMMER_Output'});
if( /^Query sequence/o ) { $self->_pushback($_); }
return $self->end_document();
last;
}
chomp;
if( m/(\S+):.*from\s+(\d+)\s+to\s+(\d+)/o ) {
my ($name,$from,$to) = ($1,$2,$3);
if( ! defined $lastdomain || $lastdomain ne $name ) {
if( $self->within_element('hit') ) {
if( $self->in_element('hsp') ) {
$self->end_element({'Name' => 'Hsp'});
}
$self->end_element({'Name' => 'Hit'});
}
$self->start_element({'Name' => 'Hit'});
my $info = [@{$hitinfo[$hitinfo{$name}]}];
if( ! defined $info ||
$info->[0] ne $name ) {
$self->warn("Somehow the Model table order does not match the order in the domains (got ".$info->[0].", expected $name). We're
back loading this from the alignment information instead");
$info = [$name, '',
/score\s+([^,\s]+),\s+E\s+=\s+(\S+)/ox];
push @hitinfo, $info;
$hitinfo{$name} = $#hitinfo;
}
$self->element({'Name' => 'Hit_id',
'Data' => shift @{$info}});
$self->element({'Name' => 'Hit_desc',
'Data' => shift @{$info}});
$self->element({'Name' => 'Hit_score',
'Data' => shift @{$info}});
$self->element({'Name' => 'Hit_signif',
'Data' => shift @{$info}});
}
if( $self->within_element('hsp') ) {
#if( defined $lastdomain ) {
$self->end_element({'Name' => 'Hsp'});
}
$self->start_element({'Name' => 'Hsp'});
$self->element({'Name' => 'Hsp_identity',
'Data' => 0});
$self->element({'Name' => 'Hsp_positive',
'Data' => 0});
my $HSPinfo = shift @hspinfo;
my $id = shift @$HSPinfo;
if( $id ne $name ) {
$self->throw("Somehow the domain list details do not match the table (got $id, expected $name)");
}
$self->element({'Name' => 'Hsp_query-from',
'Data' => shift @$HSPinfo});
$self->element({'Name' => 'Hsp_query-to',
'Data' => shift @$HSPinfo});
$self->element({'Name' => 'Hsp_hit-from',
'Data' => shift @$HSPinfo});
$self->element({'Name' => 'Hsp_hit-to',
'Data' => shift @$HSPinfo});
$self->element({'Name' => 'Hsp_score',
'Data' => shift @$HSPinfo});
$self->element({'Name' => 'Hsp_evalue',
'Data' => shift @$HSPinfo});
$lastdomain = $name;
} else {
if( /^(\s+\*\-\>)(\S+)/o ) { # start of domain
$prelength = CORE::length($1);
$width = 0;
# $width = CORE::length($2);
$self->element({'Name' =>'Hsp_hseq',
'Data' => $2});
$count = 0;
$second_tier = 0;
} elsif ( /^(\s+)(\S+)\<\-?\*?\s*$/o ) { #end of domain
$prelength -= 3 unless ($second_tier++);
$self->element({'Name' =>'Hsp_hseq',
'Data' => $2});
$width = CORE::length($2);
$count = 0;
} elsif( CORE::length($_) == 0 ||
($count != 1 && /^\s+$/o) ||
/^\s+\-?\*\s*$/ ) {
next;
} elsif( $count == 0 ) {
$prelength -= 3 unless ($second_tier++);
unless( defined $prelength) {
# $self->warn("prelength not set");
next;
}
$self->element({'Name' => 'Hsp_hseq',
'Data' => substr($_,$prelength)});
} elsif( $count == 1 ) {
if( ! defined $prelength ) {
$self->warn("prelength not set");
}
if( $width ) {
$self->element({'Name' => 'Hsp_midline',
'Data' => substr($_,$prelength,$width)});
} else {
$self->element({'Name' => 'Hsp_midline',
'Data' => substr($_,$prelength)});
}
} elsif( $count == 2 ) {
if( /^\s+(\S+)\s+(\d+)\s+(\S+)\s+(\d+)/o ||
/^\s+(\S+)\s+(\-)\s+(\S*)\s+(\-)/o
) {
$self->element({'Name' => 'Hsp_qseq',
'Data' => $3});
} else {
$self->warn("unrecognized line ($count): $_\n");
}
}
$count = 0 if $count++ >= 2;
}
}
} else {
$self->debug($_);
}
}
$last = $_;
}
$self->end_element({'Name' => 'HMMER_Output'}) unless ! $seentop;
return $self->end_document();
}
=head2 start_element
Title : start_element
Usage : $eventgenerator->start_element
Function: Handles a start element event
Returns : none
Args : hashref with at least 2 keys 'Data' and 'Name'
=cut
sub start_element{
my ($self,$data) = @_;
# we currently don't care about attributes
my $nm = $data->{'Name'};
my $type = $MODEMAP{$nm};
if( $type ) {
if( $self->_eventHandler->will_handle($type) ) {
my $func = sprintf("start_%s",lc $type);
$self->_eventHandler->$func($data->{'Attributes'});
}
unshift @{$self->{'_elements'}}, $type;
}
if(defined $type &&
$type eq 'result') {
$self->{'_values'} = {};
$self->{'_result'}= undef;
}
}
=head2 end_element
Title : start_element
Usage : $eventgenerator->end_element
Function: Handles an end element event
Returns : none
Args : hashref with at least 2 keys 'Data' and 'Name'
=cut
sub end_element {
my ($self,$data) = @_;
my $nm = $data->{'Name'};
my $type = $MODEMAP{$nm};
my $rc;
if($nm eq 'HMMER_program' ) {
if( $self->{'_last_data'} =~ /(HMM\S+)/i ) {
$self->{'_reporttype'} = uc $1;
}
}
# Hsp are sort of weird, in that they end when another
# object begins so have to detect this in end_element for now
if( $nm eq 'Hsp' ) {
foreach ( qw(Hsp_qseq Hsp_midline Hsp_hseq) ) {
$self->element({'Name' => $_,
'Data' => $self->{'_last_hspdata'}->{$_}});
}
$self->{'_last_hspdata'} = {};
}
if( $type ) {
if( $self->_eventHandler->will_handle($type) ) {
my $func = sprintf("end_%s",lc $type);
$rc = $self->_eventHandler->$func($self->{'_reporttype'},
$self->{'_values'});
}
my $lastelem = shift @{$self->{'_elements'}};
} elsif( $MAPPING{$nm} ) {
if ( ref($MAPPING{$nm}) =~ /hash/i ) {
my $key = (keys %{$MAPPING{$nm}})[0];
$self->{'_values'}->{$key}->{$MAPPING{$nm}->{$key}} = $self->{'_last_data'};
} else {
$self->{'_values'}->{$MAPPING{$nm}} = $self->{'_last_data'};
}
} else {
$self->debug( "unknown nm $nm, ignoring\n");
}
$self->{'_last_data'} = ''; # remove read data if we are at
# end of an element
$self->{'_result'} = $rc if( defined $type && $type eq 'result' );
return $rc;
}
=head2 element
Title : element
Usage : $eventhandler->element({'Name' => $name, 'Data' => $str});
Function: Convience method that calls start_element, characters, end_element
Returns : none
Args : Hash ref with the keys 'Name' and 'Data'
=cut
sub element{
my ($self,$data) = @_;
$self->start_element($data);
$self->characters($data);
$self->end_element($data);
}
=head2 characters
Title : characters
Usage : $eventgenerator->characters($str)
Function: Send a character events
Returns : none
Args : string
=cut
sub characters{
my ($self,$data) = @_;
if( $self->in_element('hsp') &&
$data->{'Name'} =~ /Hsp\_(qseq|hseq|midline)/o &&
defined $data->{'Data'} ) {
$self->{'_last_hspdata'}->{$data->{'Name'}} .= $data->{'Data'};
}
return unless ( defined $data->{'Data'} && $data->{'Data'} !~ /^\s+$/o );
$self->{'_last_data'} = $data->{'Data'};
}
=head2 within_element
Title : within_element
Usage : if( $eventgenerator->within_element($element) ) {}
Function: Test if we are within a particular element
This is different than 'in' because within can be tested
for a whole block.
Returns : boolean
Args : string element name
=cut
sub within_element{
my ($self,$name) = @_;
return 0 if ( ! defined $name ||
! defined $self->{'_elements'} ||
scalar @{$self->{'_elements'}} == 0) ;
foreach ( @{$self->{'_elements'}} ) {
return 1 if( $_ eq $name );
}
return 0;
}
=head2 in_element
Title : in_element
Usage : if( $eventgenerator->in_element($element) ) {}
Function: Test if we are in a particular element
This is different than 'within' because 'in' only
tests its immediete parent.
Returns : boolean
Args : string element name
=cut
sub in_element{
my ($self,$name) = @_;
return 0 if ! defined $self->{'_elements'}->[0];
return ( $self->{'_elements'}->[0] eq $name)
}
=head2 start_document
Title : start_document
Usage : $eventgenerator->start_document
Function: Handle a start document event
Returns : none
Args : none
=cut
sub start_document{
my ($self) = @_;
$self->{'_lasttype'} = '';
$self->{'_values'} = {};
$self->{'_result'}= undef;
$self->{'_elements'} = [];
}
=head2 end_document
Title : end_document
Usage : $eventgenerator->end_document
Function: Handles an end document event
Returns : Bio::Search::Result::ResultI object
Args : none
=cut
sub end_document{
my ($self) = @_;
return $self->{'_result'};
}
=head2 result_count
Title : result_count
Usage : my $count = $searchio->result_count
Function: Returns the number of results we have processed
Returns : integer
Args : none
=cut
sub result_count {
my $self = shift;
return $self->{'_result_count'};
}
1;
]]>