Process a html document and reformat it nicely. Beautifier

HtmlBeautifier.scala

import scala.xml._
import scala.xml.transform._
import java.io._
import xml._

/**
Creator: 2013, Olivier Huin (https://github.com/olih)
License: Eclipse Public License - v 1.0
Contributors:
*/
object HtmlBeautifier {

     object Meta {
     val description = "Process a html document and reformat it nicely"
     val signature = "HtmlBeautifier.process(ifile: File ,ofile: File)"
     val parameters = Array(
      "ifile: a html file to process",
      "ofile: a html file to create")
     val creator = "Olivier Huin (https://github.com/olih)"
     val license = "Eclipse Public License - v 1.0"
     val copyrightYear = 2013
     val keywords="file"
     val version="1.16"
     val usage = s"""
     Usage: $signature
      
     $description
     * ${parameters(0)}
     * ${parameters(1)}
     
     Creator: $copyrightYear, $creator
     License: $license
     Keywords: $keywords
     Version: $version
     """
    }


   def process(ifile: File ,ofile: File): Unit = {
    require(ifile!=null, {println("You must provide a html input file! ")})
    require(ofile!=null, {println("You must provide a html output file! ")})
    val ixml  = xml.XML.loadFile(ifile.getAbsolutePath)
    val pp = new PrettyPrinter(80, 5);
    
    val oxml= pp.formatNodes(ixml)

    val fw = new FileWriter(ofile)
    fw.write(oxml)
    fw.close()
   }

   def process(ifile: String ,ofile: String): Unit = process(new File(ifile),new File(ofile))

   def process(ixml: Seq[scala.xml.Node] ,ofile: File): Unit = {
    require(ixml!=null, {println("You must provide a html input ! ")})
    require(ofile!=null, {println("You must provide a html output file! ")})
    val pp = new PrettyPrinter(80, 5);
    
    val oxml= pp.formatNodes(ixml)

    val fw = new FileWriter(ofile)
    fw.write(oxml)
    fw.close()
   }

   def process(ixml: Seq[scala.xml.Node] ,ofile: String): Unit = process(ixml,new File(ofile))
}