Provided by: libbio-perl-perl_1.7.6-3_all bug


       Bio::OntologyIO::Handlers::BaseSAXHandler - base class for SAX Handlers


       See description.


       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.

       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.

       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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       Juguang Xiao,

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

         Title   : _tag_stack
         Usage   : @tags = $self->_tag_stack;
         Function: Get an array of tags that have been accessed but not enclosed.
         Return  :
         Args    :

         Title   : _top_tag
         Usage   : $top = $self->_top_tag;
         Function: get the top tag in the tag stack.
         Return  : a tag name
         Args    : [none]

         Title   : _chars_hash
         Usage   : $hash= $self->_chars_hash;
         Function: return the character cache for the specific tag
         Return  : a hash reference, which is intent for character storage for tags
         Args    : [none]

         Title   : _vistied_count_inc
         Usage   : $self->vistied_count_inc($tag); # the counter for the tag increase
         Function: the counter for the tag increase
         Return  : the current count after this increment
         Args    : the tag name [scalar]

         Title   : _visited_count_dec
         Usage   : $self->_visited_count_dec($tag);
         Function: the counter for the tag decreases by one
         Return  : the current count for the specific tag after the decrement
         Args    : the tag name [scalar]

         Title   : _visited_count
         Usage   : $count = $self->_visited_count
         Function: return the counter for the tag
         Return  : the current counter for the specific tag
         Args    : the tag name [scalar]

perl v5.30.0                                2019-11Bio::OntologyIO::Handlers::BaseSAXHandler(3pm)