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/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2002-2007, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
// $Id$
package scala.xml
import Predef._
/** The class <code>NamespaceBinding</code> represents namespace bindings
* and scopes. The binding for the default namespace is treated as a null
* prefix. the absent namespace is represented with the null uri. Neither
* prefix nor uri may be empty, which is not checked.
*
* @author Burak Emir
* @version 1.0
*/
@serializable
class NamespaceBinding(val prefix: String,
val uri: String,
val parent: NamespaceBinding) extends AnyRef {
private val serialVersionUID = 0 - 2518644165573446725L
if (null != prefix && 0 == prefix.length())
throw new IllegalArgumentException("zero length prefix not allowed")
def getURI(_prefix: String): String =
if (prefix == _prefix) uri else parent.getURI(_prefix)
/** Returns some prefix that is mapped to the prefix.
*
* @param _uri
* @return
*/
def getPrefix(_uri: String): String =
if (_uri == uri) uri else parent.getURI(_uri)
override def toString(): String = {
val sb = new StringBuilder()
toString(sb, TopScope)
sb.toString()
}
def toString(stop: NamespaceBinding): String = {
val sb = new StringBuilder()
toString(sb, stop)
sb.toString()
}
def toString(sb: StringBuilder, stop: NamespaceBinding): Unit = {
if (this ne stop) { // contains?
sb.append(" xmlns")
if (prefix ne null) {
sb.append(':').append(prefix)
}
sb.append('=')
.append('"')
.append(uri)
.append('"');
parent.toString(sb, stop) // copy(ignore)
}
}
}
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