Converts HTML into Groovy's MarkupBuilder code

html2groovy.groovy

import groovy.util.XmlSlurper
import groovy.util.slurpersupport.*

def root = new XmlSlurper().parse(new File(args[0]))

def getAttributes(node) {
    String res = '';
    node.attributes().each { key, value ->
        if (key == 'class') {
            key = "'class'"
        }
        res = res +  "$key: '$value', ";
    }
    !res ? '': res.substring(0, res.length() - 2)
}
def groovify(node, indent) {
    def val = indent
    if (node.name()) {
        def text = node.localText()
        def forceCloseTag = ['script','style'].contains(node.name()) && !text
        def args  = text || forceCloseTag ? "'''${ text[0]?: ''} '''" : ''
        def attrs = getAttributes(node)
        if (attrs) {
            args =  attrs + (args || forceCloseTag? ", $args" : '')
        }
        if (args) {
            val = indent + "${node.name()}($args) {\n"
        } else {
            val = indent + "${node.name()} {"
        }
        val = indent + "${node.name()}($args) {\n"
        node.childNodes().each {
            val += groovify(it, indent + '  ')
        }
        val += indent + '}\n'

    } 
    val;
}
println groovify(root,'')

Doesn't handle mixed content (e.g <div><span class='gyphicon glyphicon-remove'></span>Some text</div>), can't figure out how to get the node order in those cases. Special (and annoying handling) for empty span tags and empty script tags.