| /* |
| * Copyright (c) 2005, 2015, 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 |
| */ |
| |
| 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); |
| } |
| |
| /** |
| * @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 |
| } |
| } |
| } |