Showing the changes to java/pkg/sun/text/normalizer/ReplaceableUCharacterIterator.java (1 of 18352 files). Show all
Unified · Split
| @@ -0,0 +1,190 @@ | |||
| 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 | /** | ||
| 41 | * DLF docs must define behavior when Replaceable is mutated underneath | ||
| 42 | * the iterator. | ||
| 43 | * | ||
| 44 | * This and ICUCharacterIterator share some code, maybe they should share | ||
| 45 | * an implementation, or the common state and implementation should be | ||
| 46 | * moved up into UCharacterIterator. | ||
| 47 | * | ||
| 48 | * What are first, last, and getBeginIndex doing here?!?!?! | ||
| 49 | */ | ||
| 50 | public class ReplaceableUCharacterIterator extends UCharacterIterator { | ||
| 51 | |||
| 52 | // public constructor ------------------------------------------------------ | ||
| 53 | |||
| 54 | /** | ||
| 55 | * Public constructor | ||
| 56 | * @param str text which the iterator will be based on | ||
| 57 | */ | ||
| 58 | public ReplaceableUCharacterIterator(String str){ | ||
| 59 | if(str==null){ | ||
| 60 | throw new IllegalArgumentException(); | ||
| 61 | } | ||
| 62 | this.replaceable = new ReplaceableString(str); | ||
| 63 | this.currentIndex = 0; | ||
| 64 | } | ||
| 65 | |||
| 66 | //// for StringPrep | ||
| 67 | /** | ||
| 68 | * Public constructor | ||
| 69 | * @param buf buffer of text on which the iterator will be based | ||
| 70 | */ | ||
| 71 | public ReplaceableUCharacterIterator(StringBuffer buf){ | ||
| 72 | if(buf==null){ | ||
| 73 | throw new IllegalArgumentException(); | ||
| 74 | } | ||
| 75 | this.replaceable = new ReplaceableString(buf); | ||
| 76 | this.currentIndex = 0; | ||
| 77 | } | ||
| 78 | |||
| 79 | // public methods ---------------------------------------------------------- | ||
| 80 | |||
| 81 | /** | ||
| 82 | * Creates a copy of this iterator, does not clone the underlying | ||
| 83 | * <code>Replaceable</code>object | ||
| 84 | * @return copy of this iterator | ||
| 85 | */ | ||
| 86 | public Object clone(){ | ||
| 87 | try { | ||
| 88 | return super.clone(); | ||
| 89 | } catch (CloneNotSupportedException e) { | ||
| 90 | return null; // never invoked | ||
| 91 | } | ||
| 92 | } | ||
| 93 | |||
| 94 | /** | ||
| 95 | * Returns the current UTF16 character. | ||
| 96 | * @return current UTF16 character | ||
| 97 | */ | ||
| 98 | public int current(){ | ||
| 99 | if (currentIndex < replaceable.length()) { | ||
| 100 | return replaceable.charAt(currentIndex); | ||
| 101 | } | ||
| 102 | return DONE; | ||
| 103 | } | ||
| 104 | |||
| 105 | /** | ||
| 106 | * Returns the length of the text | ||
| 107 | * @return length of the text | ||
| 108 | */ | ||
| 109 | public int getLength(){ | ||
| 110 | return replaceable.length(); | ||
| 111 | } | ||
| 112 | |||
| 113 | /** | ||
| 114 | * Gets the current currentIndex in text. | ||
| 115 | * @return current currentIndex in text. | ||
| 116 | */ | ||
| 117 | public int getIndex(){ | ||
| 118 | return currentIndex; | ||
| 119 | } | ||
| 120 | |||
| 121 | /** | ||
| 122 | * Returns next UTF16 character and increments the iterator's currentIndex by 1. | ||
| 123 | * If the resulting currentIndex is greater or equal to the text length, the | ||
| 124 | * currentIndex is reset to the text length and a value of DONECODEPOINT is | ||
| 125 | * returned. | ||
| 126 | * @return next UTF16 character in text or DONE if the new currentIndex is off the | ||
| 127 | * end of the text range. | ||
| 128 | */ | ||
| 129 | public int next(){ | ||
| 130 | if (currentIndex < replaceable.length()) { | ||
| 131 | return replaceable.charAt(currentIndex++); | ||
| 132 | } | ||
| 133 | return DONE; | ||
| 134 | } | ||
| 135 | |||
| 136 | |||
| 137 | /** | ||
| 138 | * Returns previous UTF16 character and decrements the iterator's currentIndex by | ||
| 139 | * 1. | ||
| 140 | * If the resulting currentIndex is less than 0, the currentIndex is reset to 0 and a | ||
| 141 | * value of DONECODEPOINT is returned. | ||
| 142 | * @return next UTF16 character in text or DONE if the new currentIndex is off the | ||
| 143 | * start of the text range. | ||
| 144 | */ | ||
| 145 | public int previous(){ | ||
| 146 | if (currentIndex > 0) { | ||
| 147 | return replaceable.charAt(--currentIndex); | ||
| 148 | } | ||
| 149 | return DONE; | ||
| 150 | } | ||
| 151 | |||
| 152 | /** | ||
| 153 | * <p>Sets the currentIndex to the specified currentIndex in the text and returns that | ||
| 154 | * single UTF16 character at currentIndex. | ||
| 155 | * This assumes the text is stored as 16-bit code units.</p> | ||
| 156 | * @param currentIndex the currentIndex within the text. | ||
| 157 | * @exception IllegalArgumentException is thrown if an invalid currentIndex is | ||
| 158 | * supplied. i.e. currentIndex is out of bounds. | ||
| 159 | * @return the character at the specified currentIndex or DONE if the specified | ||
| 160 | * currentIndex is equal to the end of the text. | ||
| 161 | */ | ||
| 162 | public void setIndex(int currentIndex) { | ||
| 163 | if (currentIndex < 0 || currentIndex > replaceable.length()) { | ||
| 164 | throw new IllegalArgumentException(); | ||
| 165 | } | ||
| 166 | this.currentIndex = currentIndex; | ||
| 167 | } | ||
| 168 | |||
| 169 | //// for StringPrep | ||
| 170 | public int getText(char[] fillIn, int offset){ | ||
| 171 | int length = replaceable.length(); | ||
| 172 | if(offset < 0 || offset + length > fillIn.length){ | ||
| 173 | throw new IndexOutOfBoundsException(Integer.toString(length)); | ||
| 174 | } | ||
| 175 | replaceable.getChars(0,length,fillIn,offset); | ||
| 176 | return length; | ||
| 177 | } | ||
| 178 | |||
| 179 | // private data members ---------------------------------------------------- | ||
| 180 | |||
| 181 | /** | ||
| 182 | * Replacable object | ||
| 183 | */ | ||
| 184 | private Replaceable replaceable; | ||
| 185 | /** | ||
| 186 | * Current currentIndex | ||
| 187 | */ | ||
| 188 | private int currentIndex; | ||
| 189 | |||
| 190 | } | ||