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91 lines
2.9 KiB
91 lines
2.9 KiB
/*
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* Copyright (c) 2007, 2018, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*/
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/*
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* Copyright 1999-2004 The Apache Software Foundation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* $Id: FuncTranslate.java,v 1.2.4.1 2005/09/14 20:18:45 jeffsuttor Exp $
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*/
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package com.sun.org.apache.xpath.internal.functions;
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import com.sun.org.apache.xpath.internal.XPathContext;
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import com.sun.org.apache.xpath.internal.objects.XObject;
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import com.sun.org.apache.xpath.internal.objects.XString;
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/**
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* Execute the Translate() function.
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* @xsl.usage advanced
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*/
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public class FuncTranslate extends Function3Args
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{
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static final long serialVersionUID = -1672834340026116482L;
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/**
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* Execute the function. The function must return
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* a valid object.
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* @param xctxt The current execution context.
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* @return A valid XObject.
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*
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* @throws javax.xml.transform.TransformerException
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*/
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public XObject execute(XPathContext xctxt) throws javax.xml.transform.TransformerException
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{
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String theFirstString = m_arg0.execute(xctxt).str();
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String theSecondString = m_arg1.execute(xctxt).str();
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String theThirdString = m_arg2.execute(xctxt).str();
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int theFirstStringLength = theFirstString.length();
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int theThirdStringLength = theThirdString.length();
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// A vector to contain the new characters. We'll use it to construct
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// the result string.
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StringBuffer sbuffer = new StringBuffer();
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for (int i = 0; i < theFirstStringLength; i++)
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{
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char theCurrentChar = theFirstString.charAt(i);
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int theIndex = theSecondString.indexOf(theCurrentChar);
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if (theIndex < 0)
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{
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// Didn't find the character in the second string, so it
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// is not translated.
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sbuffer.append(theCurrentChar);
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}
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else if (theIndex < theThirdStringLength)
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{
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// OK, there's a corresponding character in the
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// third string, so do the translation...
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sbuffer.append(theThirdString.charAt(theIndex));
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}
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else
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{
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// There's no corresponding character in the
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// third string, since it's shorter than the
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// second string. In this case, the character
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// is removed from the output string, so don't
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// do anything.
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}
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}
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return new XString(sbuffer.toString());
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}
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}
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