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Scala example source code file (ProcInstr.scala)

This example Scala source code file (ProcInstr.scala) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Scala tags/keywords

illegalargumentexception, illegalargumentexception, name, pi, procinstr, specialnode, specialnode, string, string, stringbuilder, stringbuilder, xml

The Scala ProcInstr.scala source code

/*                     __                                               *\
**     ________ ___   / /  ___     Scala API                            **
**    / __/ __// _ | / /  / _ |    (c) 2003-2011, LAMP/EPFL             **
**  __\ \/ /__/ __ |/ /__/ __ |    http://scala-lang.org/               **
** /____/\___/_/ |_/____/_/ | |                                         **
**                          |/                                          **
\*                                                                      */


package scala.xml

/** an XML node for processing instructions (PI)
 *
 * @author Burak Emir
 * @param  target target name of this PI
 * @param  text   text contained in this node, may not contain "?>"
 */
case class ProcInstr(target: String, proctext: String) extends SpecialNode
{  
  if (!Utility.isName(target))
    throw new IllegalArgumentException(target+" must be an XML Name")
  if (proctext contains "?>")
    throw new IllegalArgumentException(proctext+" may not contain \"?>\"")
  if (target.toLowerCase == "xml")
    throw new IllegalArgumentException(target+" is reserved")
  
  final override def doCollectNamespaces = false
  final override def doTransform         = false

  final def label   = "#PI"  
  override def text = ""

  /** appends "<?" target (" "+text)?+"?>" 
   *  to this stringbuffer.
   */
  override def buildString(sb: StringBuilder) =
    sb append "<?%s%s?>".format(target, (if (proctext == "") "" else " " + proctext))
}

Other Scala examples (source code examples)

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