| /* |
| * Copyright (c) 2010, 2011, 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. |
| */ |
| /* |
| ******************************************************************************* |
| * Copyright (C) 2009, International Business Machines Corporation and * |
| * others. All Rights Reserved. * |
| ******************************************************************************* |
| */ |
| package sun.util.locale; |
| |
| public class StringTokenIterator { |
| private String text; |
| private String dlms; // null if a single char delimiter |
| private char delimiterChar; // delimiter if a single char delimiter |
| |
| private String token; |
| private int start; |
| private int end; |
| private boolean done; |
| |
| public StringTokenIterator(String text, String dlms) { |
| this.text = text; |
| if (dlms.length() == 1) { |
| delimiterChar = dlms.charAt(0); |
| } else { |
| this.dlms = dlms; |
| } |
| setStart(0); |
| } |
| |
| public String first() { |
| setStart(0); |
| return token; |
| } |
| |
| public String current() { |
| return token; |
| } |
| |
| public int currentStart() { |
| return start; |
| } |
| |
| public int currentEnd() { |
| return end; |
| } |
| |
| public boolean isDone() { |
| return done; |
| } |
| |
| public String next() { |
| if (hasNext()) { |
| start = end + 1; |
| end = nextDelimiter(start); |
| token = text.substring(start, end); |
| } else { |
| start = end; |
| token = null; |
| done = true; |
| } |
| return token; |
| } |
| |
| public boolean hasNext() { |
| return (end < text.length()); |
| } |
| |
| public StringTokenIterator setStart(int offset) { |
| if (offset > text.length()) { |
| throw new IndexOutOfBoundsException(); |
| } |
| start = offset; |
| end = nextDelimiter(start); |
| token = text.substring(start, end); |
| done = false; |
| return this; |
| } |
| |
| public StringTokenIterator setText(String text) { |
| this.text = text; |
| setStart(0); |
| return this; |
| } |
| |
| private int nextDelimiter(int start) { |
| int textlen = this.text.length(); |
| if (dlms == null) { |
| for (int idx = start; idx < textlen; idx++) { |
| if (text.charAt(idx) == delimiterChar) { |
| return idx; |
| } |
| } |
| } else { |
| int dlmslen = dlms.length(); |
| for (int idx = start; idx < textlen; idx++) { |
| char c = text.charAt(idx); |
| for (int i = 0; i < dlmslen; i++) { |
| if (c == dlms.charAt(i)) { |
| return idx; |
| } |
| } |
| } |
| } |
| return textlen; |
| } |
| } |