JTidy is a project hosted here on sourceforge and it is a pretty nice HTML/XML pretty printer. It also seems to check your HTML for errors, which is cool! Examples are lacking however so I thought I would share my findings with this example:
public class JTidyExample {
def tidyMeUp(String singleLine) {
StringWriter writer = new StringWriter()
Tidy tidy = new Tidy()
tidy.identity {
setEscapeCdata(false)//leave cdata untouched
setIndentCdata(true)//indent the CData
setXmlTags(true)//working with xml not html
parse(new StringReader(singleLine), writer)
}
writer.toString()
}
def createMarkUp() {
String cData = "<![CDATA[hello]]>"
StreamingMarkupBuilder xml = new StreamingMarkupBuilder();
def person1 = {
person(id: 1) {
firstName("John")
lastName("Doe")
data_labels {
mkp.yieldUnescaped(cData)
}
}
}
def personList = {
people {
out << person1
}
}
xml.bind(personList).toString()
}
def static main(def args) {
def example = new JTidyExample()
def singleLine = example.createMarkUp()
println "Before: \n ${singleLine}"
println "After: \n ${example.tidyMeUp(singleLine)}"
}
}
The following is output:
Before:
<people><person id='1'><firstName>John</firstName><lastName>Doe</lastName><data_labels><![CDATA[hello]]></data_labels></person></people>
Tidy (vers 26-Sep-2004) Parsing "InputStream"
no warnings or errors were found
After:
<people>
<person id='1'>
<firstName>John</firstName>
<lastName>Doe</lastName>
<data_labels>
<![CDATA[hello]]>
</data_labels>
</person>
</people>
Here we can see that our XML is now nicely indented. Want some more??? Check out Scott Davis' Groovy Recipes, it has a pretty sweet XML section!
UPDATE: Check out Paul Kings comments where he suggests using groovy.xml.XmlUtil.serialize(xml.bind(personList)). Sweet!
