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package com.sun.org.apache.xpath.internal.functions;

import com.sun.org.apache.xpath.internal.XPathContext;
import com.sun.org.apache.xpath.internal.objects.XObject;
import com.sun.org.apache.xpath.internal.objects.XString;

Execute the Translate() function.
@xsl.usageadvanced
/** * Execute the Translate() function. * @xsl.usage advanced */
public class FuncTranslate extends Function3Args { static final long serialVersionUID = -1672834340026116482L;
Execute the function. The function must return a valid object.
Params:
  • xctxt – The current execution context.
Throws:
Returns:A valid XObject.
/** * Execute the function. The function must return * a valid object. * @param xctxt The current execution context. * @return A valid XObject. * * @throws javax.xml.transform.TransformerException */
public XObject execute(XPathContext xctxt) throws javax.xml.transform.TransformerException { String theFirstString = m_arg0.execute(xctxt).str(); String theSecondString = m_arg1.execute(xctxt).str(); String theThirdString = m_arg2.execute(xctxt).str(); int theFirstStringLength = theFirstString.length(); int theThirdStringLength = theThirdString.length(); // A vector to contain the new characters. We'll use it to construct // the result string. StringBuffer sbuffer = new StringBuffer(); for (int i = 0; i < theFirstStringLength; i++) { char theCurrentChar = theFirstString.charAt(i); int theIndex = theSecondString.indexOf(theCurrentChar); if (theIndex < 0) { // Didn't find the character in the second string, so it // is not translated. sbuffer.append(theCurrentChar); } else if (theIndex < theThirdStringLength) { // OK, there's a corresponding character in the // third string, so do the translation... sbuffer.append(theThirdString.charAt(theIndex)); } else { // There's no corresponding character in the // third string, since it's shorter than the // second string. In this case, the character // is removed from the output string, so don't // do anything. } } return new XString(sbuffer.toString()); } }