I have been fiddling with this trying to get XML::Simple to produce the correct xml file. I have a application written. I have decided that I would take my data structures and convert them to xml. I have taken the hash structure and tried to convert it. 
my %t_type = (
...
    'b' => {
        a => {low => 1000, high => 3000, percent => 25},
        b => {low => 200,high => 2000, percent => 30},
        c => {low => 1000,high => 6000, percent => 40},
        d => {low => 300,high => 1800, percent => 35},
        e => {low => 10, high => 40, percent => 60},
        f => {low => 2, high => 12, percent => 50},
        g => [
            {select => 'new',low => 1,high => 1,percent => 10},
            {select => 'expert',low => 1,high => 1,percent => 10},
        ],
    },
...
);

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note: the g hash of arrays has at least 1 element but can be more. In the current xml file output. It creates mutiple g's with 1 entry per g array item. Which when read back in produces a differant struture. This is the options I am using to produce the file. 
print L $xsimple->XMLout(
            \%t_type,
            noattr => 1,
            xmldecl => '<?xml version="1.0"?>',
        );

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I tried the GroupTags => { '' => 'g' } and GroupTags => { 'g' => 'select' } but with no success. any suggestions, solutions. thanks

In reply to hash XML rounding trip by arcnon

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