FileDocCategorySizeDatePackage
FuncTranslate.javaAPI DocJava SE 6 API2769Tue Jun 10 00:23:16 BST 2008com.sun.org.apache.xpath.internal.functions

FuncTranslate

public class FuncTranslate extends Function3Args
Execute the Translate() function.
xsl.usage
advanced

Fields Summary
static final long
serialVersionUID
Constructors Summary
Methods Summary
public com.sun.org.apache.xpath.internal.objects.XObjectexecute(com.sun.org.apache.xpath.internal.XPathContext xctxt)
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


                            
       
  

    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());