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| 1 | /* | ||
| 2 | * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | /* | ||
| 27 | ******************************************************************************* | ||
| 28 | * (C) Copyright IBM Corp. 1996-2005 - All Rights Reserved * | ||
| 29 | * * | ||
| 30 | * The original version of this source code and documentation is copyrighted * | ||
| 31 | * and owned by IBM, These materials are provided under terms of a License * | ||
| 32 | * Agreement between IBM and Sun. This technology is protected by multiple * | ||
| 33 | * US and International patents. This notice and attribution to IBM may not * | ||
| 34 | * to removed. * | ||
| 35 | ******************************************************************************* | ||
| 36 | */ | ||
| 37 | |||
| 38 | package sun.text.normalizer; | ||
| 39 | |||
| 40 | import java.text.CharacterIterator; | ||
| 41 | |||
| 42 | /** | ||
| 43 | * This class is a wrapper around CharacterIterator and implements the | ||
| 44 | * UCharacterIterator protocol | ||
| 45 | * @author ram | ||
| 46 | */ | ||
| 47 | |||
| 48 | public class CharacterIteratorWrapper extends UCharacterIterator { | ||
| 49 | |||
| 50 | private CharacterIterator iterator; | ||
| 51 | |||
| 52 | public CharacterIteratorWrapper(CharacterIterator iter){ | ||
| 53 | if(iter==null){ | ||
| 54 | throw new IllegalArgumentException(); | ||
| 55 | } | ||
| 56 | iterator = iter; | ||
| 57 | } | ||
| 58 | |||
| 59 | /** | ||
| 60 | * @see UCharacterIterator#current() | ||
| 61 | */ | ||
| 62 | public int current() { | ||
| 63 | int c = iterator.current(); | ||
| 64 | if(c==CharacterIterator.DONE){ | ||
| 65 | return DONE; | ||
| 66 | } | ||
| 67 | return c; | ||
| 68 | } | ||
| 69 | |||
| 70 | /** | ||
| 71 | * @see UCharacterIterator#getLength() | ||
| 72 | */ | ||
| 73 | public int getLength() { | ||
| 74 | return (iterator.getEndIndex() - iterator.getBeginIndex()); | ||
| 75 | } | ||
| 76 | |||
| 77 | /** | ||
| 78 | * @see UCharacterIterator#getIndex() | ||
| 79 | */ | ||
| 80 | public int getIndex() { | ||
| 81 | return iterator.getIndex(); | ||
| 82 | } | ||
| 83 | |||
| 84 | /** | ||
| 85 | * @see UCharacterIterator#next() | ||
| 86 | */ | ||
| 87 | public int next() { | ||
| 88 | int i = iterator.current(); | ||
| 89 | iterator.next(); | ||
| 90 | if(i==CharacterIterator.DONE){ | ||
| 91 | return DONE; | ||
| 92 | } | ||
| 93 | return i; | ||
| 94 | } | ||
| 95 | |||
| 96 | /** | ||
| 97 | * @see UCharacterIterator#previous() | ||
| 98 | */ | ||
| 99 | public int previous() { | ||
| 100 | int i = iterator.previous(); | ||
| 101 | if(i==CharacterIterator.DONE){ | ||
| 102 | return DONE; | ||
| 103 | } | ||
| 104 | return i; | ||
| 105 | } | ||
| 106 | |||
| 107 | /** | ||
| 108 | * @see UCharacterIterator#setIndex(int) | ||
| 109 | */ | ||
| 110 | public void setIndex(int index) { | ||
| 111 | iterator.setIndex(index); | ||
| 112 | } | ||
| 113 | |||
| 114 | //// for StringPrep | ||
| 115 | /** | ||
| 116 | * @see UCharacterIterator#getText(char[]) | ||
| 117 | */ | ||
| 118 | public int getText(char[] fillIn, int offset){ | ||
| 119 | int length =iterator.getEndIndex() - iterator.getBeginIndex(); | ||
| 120 | int currentIndex = iterator.getIndex(); | ||
| 121 | if(offset < 0 || offset + length > fillIn.length){ | ||
| 122 | throw new IndexOutOfBoundsException(Integer.toString(length)); | ||
| 123 | } | ||
| 124 | |||
| 125 | for (char ch = iterator.first(); ch != CharacterIterator.DONE; ch = iterator.next()) { | ||
| 126 | fillIn[offset++] = ch; | ||
| 127 | } | ||
| 128 | iterator.setIndex(currentIndex); | ||
| 129 | |||
| 130 | return length; | ||
| 131 | } | ||
| 132 | |||
| 133 | /** | ||
| 134 | * Creates a clone of this iterator. Clones the underlying character iterator. | ||
| 135 | * @see UCharacterIterator#clone() | ||
| 136 | */ | ||
| 137 | public Object clone(){ | ||
| 138 | try { | ||
| 139 | CharacterIteratorWrapper result = (CharacterIteratorWrapper) super.clone(); | ||
| 140 | result.iterator = (CharacterIterator)this.iterator.clone(); | ||
| 141 | return result; | ||
| 142 | } catch (CloneNotSupportedException e) { | ||
| 143 | return null; // only invoked if bad underlying character iterator | ||
| 144 | } | ||
| 145 | } | ||
| 146 | } | ||