146 lines · 4.6 KB · Java
RawDownload
/* * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /* ******************************************************************************* * (C) Copyright IBM Corp. 1996-2005 - All Rights Reserved                     * *                                                                             * * The original version of this source code and documentation is copyrighted   * * and owned by IBM, These materials are provided under terms of a License     * * Agreement between IBM and Sun. This technology is protected by multiple     * * US and International patents. This notice and attribution to IBM may not    * * to removed.                                                                 * ******************************************************************************* */ package sun.text.normalizer; import java.text.CharacterIterator; /** * This class is a wrapper around CharacterIterator and implements the * UCharacterIterator protocol * @author ram */ public class CharacterIteratorWrapper extends UCharacterIterator {     private CharacterIterator iterator;     public CharacterIteratorWrapper(CharacterIterator iter){        if(iter==null){            throw new IllegalArgumentException();        }        iterator     = iter;    }     /**     * @see UCharacterIterator#current()     */    public int current() {        int c = iterator.current();        if(c==CharacterIterator.DONE){          return DONE;        }        return c;    }     /**     * @see UCharacterIterator#getLength()     */    public int getLength() {        return (iterator.getEndIndex() - iterator.getBeginIndex());    }     /**     * @see UCharacterIterator#getIndex()     */    public int getIndex() {        return iterator.getIndex();    }     /**     * @see UCharacterIterator#next()     */    public int next() {        int i = iterator.current();        iterator.next();        if(i==CharacterIterator.DONE){          return DONE;        }        return i;    }     /**     * @see UCharacterIterator#previous()     */    public int previous() {        int i = iterator.previous();        if(i==CharacterIterator.DONE){            return DONE;        }        return i;    }     /**     * @see UCharacterIterator#setIndex(int)     */    public void setIndex(int index) {        iterator.setIndex(index);    }     //// for StringPrep    /**     * @see UCharacterIterator#getText(char[])     */    public int getText(char[] fillIn, int offset){        int length =iterator.getEndIndex() - iterator.getBeginIndex();        int currentIndex = iterator.getIndex();        if(offset < 0 || offset + length > fillIn.length){            throw new IndexOutOfBoundsException(Integer.toString(length));        }         for (char ch = iterator.first(); ch != CharacterIterator.DONE; ch = iterator.next()) {            fillIn[offset++] = ch;        }        iterator.setIndex(currentIndex);         return length;    }     /**     * Creates a clone of this iterator.  Clones the underlying character iterator.     * @see UCharacterIterator#clone()     */    public Object clone(){        try {            CharacterIteratorWrapper result = (CharacterIteratorWrapper) super.clone();            result.iterator = (CharacterIterator)this.iterator.clone();            return result;        } catch (CloneNotSupportedException e) {            return null; // only invoked if bad underlying character iterator        }    }}