Bio::OntologyIO::Handlers::BaseSAXHandler3pm

Usage

Overview

This module is an abstract module, serving as the base of any SAX Handler implementation. It tries to offer the framework that SAX handlers generally need, such as tag_stack, char_store, etc.

In the implementation handler, you can take advantage of this based module by the following suggestions.

1) In start_element,

 sub start_element {
     my $self=shift;
     my $tag=$_[0]->{Name};
     my %args=%{$_[0]->{Attributes}};
     # Your code here.
     # Before you conclude the method, write these 2 line.
     $self->_visited_count_inc($tag);
     $self->_push_tag($tag);
 }

2) In end_element,

 sub end_element {
     my $self=shift;
     my $tag=shift->{Name};
     # Your code here.
     # Before you conclude the method, write these 2 lines.
     $self->_visited_count_dec($tag);
     $self->_pop_tag;
 }

3) In characters, or any other methods where you may use the tag stack or count

 sub characters {
     my $self=shift;
     my $text=shift->{Data};
     $self->_chars_hash->{$self->_top_tag} .= $text;
 }
 $count = $self->_visited_count('myTag');
 $tag = $self->_top_tag;

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