macbookseb:perl seb$ perl -v
This is perl 5, version 22, subversion 1 (v5.22.1) built for darwin-thread-multi-2level[...]

macbookseb:perl seb$ perl test_sax.pl data.xml XML::SAX::PurePerl
parser is XML::SAX::PurePerl (0.99)
document \ {}

macbookseb:perl seb$ perl test_sax.pl data.xml XML::SAX::Expat
parser is XML::SAX::Expat (0.51)
document \ {
  Encoding     "UTF-8",
  Standalone   "",
  Version      1.0
}

macbookseb:perl seb$ perl test_sax.pl data.xml XML::LibXML::SAX
parser is XML::LibXML::SAX (2.0124)
document \ {}
decl \ {
  Version   1.0
}

macbookseb:perl seb$ perl test_sax.pl data.xml XML::LibXML::SAX::Parser
parser is XML::LibXML::SAX::Parser (2.0124)
document \ {}
decl \ {
  Encoding   "UTF-8",
  Version    1.0
}