pcdata.scala

来自「JAVA 语言的函数式编程扩展」· SCALA 代码 · 共 32 行

// $Id: PCData.scala 14241 2008-03-03 14:53:47Z washburn $

package scala.xml

/** This class (which is not used by all XML parsers, but always used by the XHTML one) 
 *  represents parseable character data, which appeared as CDATA sections in the input 
 *  and is to be preserved as CDATA section in the output.
 */
case class PCData(_data: String) extends Atom[String](_data) {
  /* The following code is a derivative work of scala.xml.Text */
  if (null == data)
    throw new IllegalArgumentException("tried to construct PCData with null")

  final override def equals(x: Any) = x match {
    case s: String  => s.equals(data)
    case s: Atom[_] => data == s.data
    case _ => false
  }

  /** Returns text, with some characters escaped according to the XML
   *  specification.
   *
   *  @param  sb ...
   *  @return ...
   */
  override def toString(sb: StringBuilder) = {
    sb.append("<![CDATA[")
    sb.append(data)
    sb.append("]]>")
  }
}