#!/usr/bin/perl
package MyHandler;
use strict;
use warnings;
use base qw(XML::SAX::Base);
use Data::Dumper;
use XML::SAX::ParserFactory;
use XML::SAX::Writer;
sub start_element {
my $self = shift;
my $data = shift;
if( $data->{LocalName} eq 'expand') {
$self->{in_include}++;
my $p = XML::SAX::ParserFactory->parser( Handler => $self );
$p->parse_string( "This is my expanded tag" );
return;
}
#$data->{Attributes} = undef;
$self->SUPER::start_element($data);
#print Dumper($data);
}
sub characters {
my $self = shift;
my $data = shift;
#print "Data is $data->{Data}" if defined $data->{Data};
$self->SUPER::characters($data);
}
sub end_element {
my ($self, $element) = @_;
if ($element->{LocalName} eq "expand") {
$self->{in_include}--;
} else {
$self->SUPER::end_element($element);
}
}
sub start_document { # same for end_document
my($self, $data) = @_;
return if($self->{in_include});
$self->SUPER::start_document($data);
}
sub end_document { # same for end_document
my($self, $data) = @_;
return if($self->{in_include});
$self->SUPER::end_document($data);
}
1;
#============================
#Main programm
#============================
use strict;
use warnings;
use XML::SAX::ParserFactory;
use XML::SAX::Writer;
my $out;
my $o = XML::SAX::Writer->new( Output => \$out );
my $h = MyHandler->new( Handler => $o );
my $p = XML::SAX::ParserFactory->parser(Handler => $h);
my $data;
{ local undef $/ }; $data = ;
$p->parse_string( $data );
print $out;
__DATA__