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## Perl Modules - XML::Simple
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# Read xml file and print out the structure
perl -MXML::Simple -MData::Dumper -le '$xs=XML::Simple->new; print Dumper($xs->XMLin("embraer.xml"))'

# Print the structure of an xml file while reading the input
perl -MXML::Simple -MData::Dumper -le '$d=XML::Simple::XMLin($ARGV[0]//die"\nSyntax: tool xmlfile\n\n"); print Dumper($d)'

# XML::Simple example
perl -Me -MXML::Simple -e 'my $xml = XML::Simple->new; say $xml->XMLout( "hey", AttrIndent => 1, NoAttr => 1, KeyAttr => [], RootName => "RootElement" )'

# Why use XML::Simple AND XML::LibXML together
perl -Me -MXML::Simple -MXML::LibXML -e 'my $x = XML::Simple->new->XMLout( "hey\f", AttrIndent => 1, NoAttr => 1, KeyAttr => [], RootName => "RootElement" ); say(XML::LibXML->load_xml( string => $x))'
:1: parser error : PCDATA invalid Char value 12
<RootElement>hey
                </RootElement>
                ^
perl -Me -MXML::Simple -MXML::LibXML -e 'my $x = XML::Simple->new->XMLout( "hey\f", AttrIndent => 1, NoAttr => 1, KeyAttr => [], RootName => "RootElement" ); say(XML::LibXML->load_xml( string => "abc"))'


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## Perl Modules - YAML::XS
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# Simple example of converting between yaml and a data structure.
perl -MYAML::XS -E '$yml = Dump [1..3]; $arr = Load $yml'