17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 57c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 67c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 77c478bd9Sstevel@tonic-gate * with the License. 87c478bd9Sstevel@tonic-gate * 97c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 107c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 117c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 127c478bd9Sstevel@tonic-gate * and limitations under the License. 137c478bd9Sstevel@tonic-gate * 147c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 157c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 167c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 177c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 187c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 197c478bd9Sstevel@tonic-gate * 207c478bd9Sstevel@tonic-gate * CDDL HEADER END 217c478bd9Sstevel@tonic-gate */ 227c478bd9Sstevel@tonic-gate /* 237c478bd9Sstevel@tonic-gate * ident "%Z%%M% %I% %E% SMI" 247c478bd9Sstevel@tonic-gate * 257c478bd9Sstevel@tonic-gate * Copyright 2002 Sun Microsystems, Inc. All rights reserved. 267c478bd9Sstevel@tonic-gate * Use is subject to license terms. 277c478bd9Sstevel@tonic-gate * 287c478bd9Sstevel@tonic-gate */ 297c478bd9Sstevel@tonic-gate 307c478bd9Sstevel@tonic-gate 317c478bd9Sstevel@tonic-gate /** 327c478bd9Sstevel@tonic-gate * This is a replacement for StringTokenizer since there 337c478bd9Sstevel@tonic-gate * is an incompatibility between JDK 1.2 and JDK 1.3.1 347c478bd9Sstevel@tonic-gate * and beyond which breaks slp.jar support for apps which 357c478bd9Sstevel@tonic-gate * could use either JDK. 367c478bd9Sstevel@tonic-gate */ 377c478bd9Sstevel@tonic-gate 387c478bd9Sstevel@tonic-gate package com.sun.slp; 397c478bd9Sstevel@tonic-gate 407c478bd9Sstevel@tonic-gate import java.util.Enumeration; 417c478bd9Sstevel@tonic-gate import java.util.NoSuchElementException; 427c478bd9Sstevel@tonic-gate 437c478bd9Sstevel@tonic-gate public class SLPTokenizer implements Enumeration 447c478bd9Sstevel@tonic-gate { 457c478bd9Sstevel@tonic-gate 467c478bd9Sstevel@tonic-gate private String str; 477c478bd9Sstevel@tonic-gate private String delims; 487c478bd9Sstevel@tonic-gate private boolean bRetDel; 497c478bd9Sstevel@tonic-gate private int index; 507c478bd9Sstevel@tonic-gate initialize(String s, String d, boolean b)517c478bd9Sstevel@tonic-gate private void initialize(String s, String d, boolean b) 527c478bd9Sstevel@tonic-gate { 537c478bd9Sstevel@tonic-gate str = s; 547c478bd9Sstevel@tonic-gate delims = d; 557c478bd9Sstevel@tonic-gate bRetDel = b; 567c478bd9Sstevel@tonic-gate index = 0; 577c478bd9Sstevel@tonic-gate } 58*55fea89dSDan Cross SLPTokenizer(String s)597c478bd9Sstevel@tonic-gate public SLPTokenizer(String s) 607c478bd9Sstevel@tonic-gate { 617c478bd9Sstevel@tonic-gate initialize(s, "", false); 627c478bd9Sstevel@tonic-gate } 637c478bd9Sstevel@tonic-gate SLPTokenizer(String s, String delim)647c478bd9Sstevel@tonic-gate public SLPTokenizer(String s, String delim) 657c478bd9Sstevel@tonic-gate { 667c478bd9Sstevel@tonic-gate initialize(s, delim, false); 677c478bd9Sstevel@tonic-gate } 687c478bd9Sstevel@tonic-gate SLPTokenizer(String s, String delim, boolean returnDelims)697c478bd9Sstevel@tonic-gate public SLPTokenizer(String s, String delim, boolean returnDelims) 707c478bd9Sstevel@tonic-gate { 717c478bd9Sstevel@tonic-gate initialize(s, delim, returnDelims); 727c478bd9Sstevel@tonic-gate } 737c478bd9Sstevel@tonic-gate 747c478bd9Sstevel@tonic-gate /** 75*55fea89dSDan Cross * Calculates the number of times that this tokenizer's 76*55fea89dSDan Cross * nextToken method can be called before it generates an 777c478bd9Sstevel@tonic-gate * exception. 787c478bd9Sstevel@tonic-gate */ countTokens()797c478bd9Sstevel@tonic-gate public int countTokens() 807c478bd9Sstevel@tonic-gate { 817c478bd9Sstevel@tonic-gate int i = 0; 82*55fea89dSDan Cross 837c478bd9Sstevel@tonic-gate if (str.length() < 1) { 847c478bd9Sstevel@tonic-gate return 0; 857c478bd9Sstevel@tonic-gate } 86*55fea89dSDan Cross 877c478bd9Sstevel@tonic-gate char c = str.charAt(0); 887c478bd9Sstevel@tonic-gate boolean inToken = false; 897c478bd9Sstevel@tonic-gate 907c478bd9Sstevel@tonic-gate // a token starts if 917c478bd9Sstevel@tonic-gate // (a) next character is a non delimiter 927c478bd9Sstevel@tonic-gate // (b) there are more characters 937c478bd9Sstevel@tonic-gate 947c478bd9Sstevel@tonic-gate for (int j = 0; j < str.length(); j++) 957c478bd9Sstevel@tonic-gate { 967c478bd9Sstevel@tonic-gate c = str.charAt(j); 977c478bd9Sstevel@tonic-gate if (delims.indexOf(c) != -1) { 987c478bd9Sstevel@tonic-gate if (bRetDel) { 997c478bd9Sstevel@tonic-gate i++; 1007c478bd9Sstevel@tonic-gate } 101*55fea89dSDan Cross 1027c478bd9Sstevel@tonic-gate if (inToken == true) { 1037c478bd9Sstevel@tonic-gate i++; // we were in a token, now completed it 1047c478bd9Sstevel@tonic-gate inToken = false; 1057c478bd9Sstevel@tonic-gate } 1067c478bd9Sstevel@tonic-gate } else { 1077c478bd9Sstevel@tonic-gate 1087c478bd9Sstevel@tonic-gate // To get here, we must be in a token. 1097c478bd9Sstevel@tonic-gate inToken = true; 1107c478bd9Sstevel@tonic-gate } 1117c478bd9Sstevel@tonic-gate } 1127c478bd9Sstevel@tonic-gate 1137c478bd9Sstevel@tonic-gate if (inToken) { 1147c478bd9Sstevel@tonic-gate i++; 1157c478bd9Sstevel@tonic-gate } 1167c478bd9Sstevel@tonic-gate 1177c478bd9Sstevel@tonic-gate return i; 1187c478bd9Sstevel@tonic-gate } 119*55fea89dSDan Cross 1207c478bd9Sstevel@tonic-gate /** 1217c478bd9Sstevel@tonic-gate * Returns the same value as the hasMoreTokens method. 1227c478bd9Sstevel@tonic-gate */ 123*55fea89dSDan Cross hasMoreElements()1247c478bd9Sstevel@tonic-gate public boolean hasMoreElements() 1257c478bd9Sstevel@tonic-gate { 1267c478bd9Sstevel@tonic-gate if (str.length() < 1) { 1277c478bd9Sstevel@tonic-gate return false; 1287c478bd9Sstevel@tonic-gate } 1297c478bd9Sstevel@tonic-gate 1307c478bd9Sstevel@tonic-gate if (index >= str.length()) { 1317c478bd9Sstevel@tonic-gate return false; 1327c478bd9Sstevel@tonic-gate } 1337c478bd9Sstevel@tonic-gate 1347c478bd9Sstevel@tonic-gate if (bRetDel == false) { 1357c478bd9Sstevel@tonic-gate // Check to see if all there is left are delimiters. 1367c478bd9Sstevel@tonic-gate // If so there are no more elements. 1377c478bd9Sstevel@tonic-gate for (int i = index; i < str.length(); i++) { 1387c478bd9Sstevel@tonic-gate 1397c478bd9Sstevel@tonic-gate if (delims.indexOf(str.charAt(i)) == -1) { 1407c478bd9Sstevel@tonic-gate return true; // A non-delim char found! 1417c478bd9Sstevel@tonic-gate } 1427c478bd9Sstevel@tonic-gate } 1437c478bd9Sstevel@tonic-gate return false; // No non-delim chars remain! 1447c478bd9Sstevel@tonic-gate } 1457c478bd9Sstevel@tonic-gate 1467c478bd9Sstevel@tonic-gate return true; // Something remains. 1477c478bd9Sstevel@tonic-gate } 1487c478bd9Sstevel@tonic-gate 1497c478bd9Sstevel@tonic-gate /** 1507c478bd9Sstevel@tonic-gate * Tests if there are more tokens available from this 1517c478bd9Sstevel@tonic-gate * tokenizer's string. 1527c478bd9Sstevel@tonic-gate */ hasMoreTokens()1537c478bd9Sstevel@tonic-gate public boolean hasMoreTokens() 1547c478bd9Sstevel@tonic-gate { 1557c478bd9Sstevel@tonic-gate return hasMoreElements(); 1567c478bd9Sstevel@tonic-gate } 1577c478bd9Sstevel@tonic-gate 1587c478bd9Sstevel@tonic-gate /** 1597c478bd9Sstevel@tonic-gate * Returns the same value as the nextToken method, 1607c478bd9Sstevel@tonic-gate * except that its declared return value is Object 1617c478bd9Sstevel@tonic-gate * rather than String. 1627c478bd9Sstevel@tonic-gate */ nextElement()1637c478bd9Sstevel@tonic-gate public Object nextElement() 1647c478bd9Sstevel@tonic-gate throws NoSuchElementException 1657c478bd9Sstevel@tonic-gate { 1667c478bd9Sstevel@tonic-gate return (Object) nextToken(); 1677c478bd9Sstevel@tonic-gate } 1687c478bd9Sstevel@tonic-gate 1697c478bd9Sstevel@tonic-gate /** 1707c478bd9Sstevel@tonic-gate * Returns the next token from this string tokenizer. 1717c478bd9Sstevel@tonic-gate * 1727c478bd9Sstevel@tonic-gate */ nextToken()1737c478bd9Sstevel@tonic-gate public String nextToken() 1747c478bd9Sstevel@tonic-gate throws NoSuchElementException 1757c478bd9Sstevel@tonic-gate { 1767c478bd9Sstevel@tonic-gate if (index >= str.length()) throw new NoSuchElementException(); 177*55fea89dSDan Cross 1787c478bd9Sstevel@tonic-gate StringBuffer sb = new StringBuffer(); 1797c478bd9Sstevel@tonic-gate char c = str.charAt(index); 1807c478bd9Sstevel@tonic-gate 1817c478bd9Sstevel@tonic-gate if (bRetDel == true) 1827c478bd9Sstevel@tonic-gate { 183*55fea89dSDan Cross 1847c478bd9Sstevel@tonic-gate if (delims.indexOf(c) != -1) { 1857c478bd9Sstevel@tonic-gate 1867c478bd9Sstevel@tonic-gate // We begin at a delimiter. Return it & advance over. 1877c478bd9Sstevel@tonic-gate sb.append(str.charAt(index)); 1887c478bd9Sstevel@tonic-gate index++; 1897c478bd9Sstevel@tonic-gate return sb.toString(); 1907c478bd9Sstevel@tonic-gate 1917c478bd9Sstevel@tonic-gate } else { 1927c478bd9Sstevel@tonic-gate // Advance to next delimiter and stop. Return string. 1937c478bd9Sstevel@tonic-gate while (index < str.length()) { 1947c478bd9Sstevel@tonic-gate 1957c478bd9Sstevel@tonic-gate c = str.charAt(index); 1967c478bd9Sstevel@tonic-gate if (delims.indexOf(c) != -1) { 1977c478bd9Sstevel@tonic-gate 1987c478bd9Sstevel@tonic-gate return sb.toString(); 1997c478bd9Sstevel@tonic-gate 2007c478bd9Sstevel@tonic-gate } else { 2017c478bd9Sstevel@tonic-gate 2027c478bd9Sstevel@tonic-gate sb.append(c); 2037c478bd9Sstevel@tonic-gate 2047c478bd9Sstevel@tonic-gate } 2057c478bd9Sstevel@tonic-gate index++; 2067c478bd9Sstevel@tonic-gate } 2077c478bd9Sstevel@tonic-gate // We get here only if this is the last token. 2087c478bd9Sstevel@tonic-gate return sb.toString(); 2097c478bd9Sstevel@tonic-gate } 2107c478bd9Sstevel@tonic-gate } else { 2117c478bd9Sstevel@tonic-gate // 3 cases 2127c478bd9Sstevel@tonic-gate // token till the end 2137c478bd9Sstevel@tonic-gate // token till a delimiter 2147c478bd9Sstevel@tonic-gate // only delimiters till the end (exception!) 2157c478bd9Sstevel@tonic-gate while (index < str.length()) { 2167c478bd9Sstevel@tonic-gate 2177c478bd9Sstevel@tonic-gate c = str.charAt(index); 2187c478bd9Sstevel@tonic-gate if (delims.indexOf(c) != -1) { 2197c478bd9Sstevel@tonic-gate if (sb.length() != 0) { 2207c478bd9Sstevel@tonic-gate 2217c478bd9Sstevel@tonic-gate index++; // Skip past the delimiter. 2227c478bd9Sstevel@tonic-gate return sb.toString(); 2237c478bd9Sstevel@tonic-gate } 2247c478bd9Sstevel@tonic-gate index++; // Do not include delimiters if no content yet. 2257c478bd9Sstevel@tonic-gate 2267c478bd9Sstevel@tonic-gate } else { // Not the delimiter yet. 2277c478bd9Sstevel@tonic-gate 2287c478bd9Sstevel@tonic-gate sb.append(c); 2297c478bd9Sstevel@tonic-gate index++; 2307c478bd9Sstevel@tonic-gate } 2317c478bd9Sstevel@tonic-gate } 2327c478bd9Sstevel@tonic-gate 2337c478bd9Sstevel@tonic-gate if (sb.length() == 0) { 2347c478bd9Sstevel@tonic-gate throw new NoSuchElementException(); 2357c478bd9Sstevel@tonic-gate } 2367c478bd9Sstevel@tonic-gate 2377c478bd9Sstevel@tonic-gate return sb.toString(); 2387c478bd9Sstevel@tonic-gate } 2397c478bd9Sstevel@tonic-gate } 240*55fea89dSDan Cross 2417c478bd9Sstevel@tonic-gate /** 2427c478bd9Sstevel@tonic-gate * Returns the next token in this string tokenizer's string. 2437c478bd9Sstevel@tonic-gate */ nextToken(String delim)2447c478bd9Sstevel@tonic-gate public String nextToken(String delim) 2457c478bd9Sstevel@tonic-gate throws NoSuchElementException 2467c478bd9Sstevel@tonic-gate { 2477c478bd9Sstevel@tonic-gate String saveDelims = delims; 2487c478bd9Sstevel@tonic-gate delims = delim; 2497c478bd9Sstevel@tonic-gate try 2507c478bd9Sstevel@tonic-gate { 2517c478bd9Sstevel@tonic-gate // This is not thread safe, but it will String. 2527c478bd9Sstevel@tonic-gate // There are no guarantees StringTokenizer is 2537c478bd9Sstevel@tonic-gate // thread safe either. 2547c478bd9Sstevel@tonic-gate String ret = nextToken(); 2557c478bd9Sstevel@tonic-gate delims = saveDelims; 2567c478bd9Sstevel@tonic-gate return ret; 2577c478bd9Sstevel@tonic-gate } 2587c478bd9Sstevel@tonic-gate catch (NoSuchElementException nsee) 2597c478bd9Sstevel@tonic-gate { 2607c478bd9Sstevel@tonic-gate delims = saveDelims; 2617c478bd9Sstevel@tonic-gate throw nsee; 2627c478bd9Sstevel@tonic-gate } 2637c478bd9Sstevel@tonic-gate } 2647c478bd9Sstevel@tonic-gate } 265