use warnings;
use strict;
use XML::Rules;
use Data::Dump;

my $parser = XML::Rules->new(
	stripspaces => 3|4,
	rules => [
		root=>'pass',
		config=>'', build=>'',
		ref=>'by name', func=>'as is',
		_default => sub { die "Unknown tag $_[0]" }
	] );
my $data = $parser->parse(<<'END_XML');
<root>
	<config>
		<build host="https://cpzdomain.local"/>
	</config>
	<ref name="abc_sia_%version1.ref%">
		<func envname = "test01" objectdir = "/home/pv66" 
			base="default_771"/>
	</ref>
</root>
END_XML
dd $data;

__END__

{
  "abc_sia_%version1.ref%" => {
    func => { base => "default_771", envname => "test01",
      objectdir => "/home/pv66" },
  },
}