[help-GIFT] sub query in CGIFTLink.pm , argument doesn't have children

[Prawit Chaivong]

hi , i want to write gift-plugin (in perl lang).
And in the gift-config.mrml told me , which script that will be called 
(by gift server) when algorithm is "perl link" and main class come from 
CGIFTLink.pm
   and in method query that received some parameter that can be 
translated to this :

{
 element=>'an-element-name',
  attributes=> {
                           'attribute-1'=>'value1',
                            'attribute-2'=>'value2'
                       },
  children=> [
                           {
                               element=>'an-element-name',
                               attributes=> {
                                                           
'attribute-1'=>'value1',
                                                            
'attribute-2'=>'value2'
                                                       },
                              children=> []
                               }
                               ......
                       ]
}

So i Try to print out parameter that method query received , I don't 
found children
what i gonna do ,if  query message is

<query-step query-step-id="1" algorothm-id="a-perl" result-size="30">
   <cui-text-query query-string="hello">
</query-step>

because parameter that method "query" received doesn't have a child
That mean we can't get <cui-text-query query-string="hello"> because 
this element should be children of of value that "query" received

thank you very much
Cheer...