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| Parameter | Description | Example | 
|---|---|---|
| xpath | XPath to address a node or a node list. Every referenced node will become a variable definition. If you address nodes with an xpath selector like '//' or '//*' be sure that the node names are unique. Otherwise specify a name/value tuple where the name comes from another node. | /purchaseOrder/item/quantity /item//* //quantity | 
| name | Defines the name and its value holder (optional) tag name (comma separated). 
 Note: If you want the name or the value to be interpreted as a child node/child value you need to specify the variable as isDynamic = true. | myName myName,myValue | 
| namePrefix (optional) | You may prefix all the var names if you like. This is optional but very powerfull if you know about duplicate node names. | nl-1 nl-2 | 
| isDynamic | If you like to take the var name (and/or its value) from another node, be sure you mark the var as 'isDynamic'. Default is false. If false the name of the variable is eather a fix name or if the name is empty the tag name of the target node will be taken. | true/false | 
| Codeblock | ||||||
|---|---|---|---|---|---|---|
| 
 | ||||||
|    <var isDynamic="true">
              <name>../../../config/type/@name</name>
              <condition>nodeLabel(choosenNode("../../../config/type")) != "raster"</condition>
              <xpath>//page//element/value/simple/text()</xpath>
       </var>
       <var isDynamic="true">
              <name>./config/@name</name>
              <xpath>//page/UNNAMED1/group</xpath>
       </var>
       <var isDynamic="true">
              <name>../../../config/type/@name</name>
              <namePostfix>formula:pos()</namePostfix>
              <xpath>//page//element/value/list/sl</xpath>
       </var>
       <var isDynamic="true">
              <name>formula:"../../../../config/type/table/column[" + integer(subStringAfter(nodeName("."),,1)) + "]/@name"</name>
              <namePrefix>formula:nodeValue("../../../../config/type/@name")</namePrefix>
              <namePostfix>formula:pos()</namePostfix>
              <xpath>//page//element/value/list/*/*[starts-with(local-name(), 'c')]</xpath>
       </var> |