groovy script showing how to extract text node content from an XML file

collectXmlText.groovy

/*
groovy XmlParser creates a tree of nodes that are
either Strings or groovy.util.Node objects.  Walk the
parsed tree recursively and save text content.
*/

String collectText(Object n, String allText) { 
    if (n.getClass().getName() == "java.lang.String") {
        allText = allText + n

    } else {
        n.children().each { child ->
            allText = collectText(child, allText)
        }
    }
    return allText
}


File f = new File(args[0])

def root = new XmlParser().parse(f)
println collectText(root, "")