1b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato/* 2b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * ProGuard -- shrinking, optimization, obfuscation, and preverification 3b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * of Java bytecode. 4b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 5b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Copyright (c) 2002-2009 Eric Lafortune (eric@graphics.cornell.edu) 6b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 7b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * This program is free software; you can redistribute it and/or modify it 8b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * under the terms of the GNU General Public License as published by the Free 9b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Software Foundation; either version 2 of the License, or (at your option) 10b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * any later version. 11b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 12b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * This program is distributed in the hope that it will be useful, but WITHOUT 13b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 14b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 15b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * more details. 16b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 17b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * You should have received a copy of the GNU General Public License along 18b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * with this program; if not, write to the Free Software Foundation, Inc., 19b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 21b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratopackage proguard.util; 22b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 23b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimport java.util.*; 24b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 25b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 26b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato/** 27b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * This class provides some utility methods for working with 28b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * <code>java.util.List</code> objects. 29b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 30b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @author Eric Lafortune 31b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 32b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratopublic class ListUtil 33b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato{ 34b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato /** 35b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Creates a comma-separated String from the given List of String objects. 36b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 37b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public static String commaSeparatedString(List list) 38b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 39b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato if (list == null) 40b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 41b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return null; 42b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 43b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 44b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato StringBuffer buffer = new StringBuffer(); 45b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 46b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato for (int index = 0; index < list.size(); index++) 47b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 48b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato if (index > 0) 49b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 50b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato buffer.append(','); 51b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 52b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 53b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato buffer.append(quotedString((String)list.get(index))); 54b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 55b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 56b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return buffer.toString(); 57b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 58b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 59b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 60b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato /** 61b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Creates a List of String objects from the given comma-separated String. 62b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 63b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public static List commaSeparatedList(String string) 64b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 65b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato if (string == null) 66b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 67b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return null; 68b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 69b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 70b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato List list = new ArrayList(); 71b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato int index = 0; 72b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato while ((index = skipWhitespace(string, index)) < string.length()) 73b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 74b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato int nextIndex; 75b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 76b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Do we have an opening quote? 77b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato if (string.charAt(index) == '\'') 78b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 79b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Parse a quoted string. 80b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato nextIndex = string.indexOf('\'', index + 1); 81b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato if (nextIndex < 0) 82b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 83b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato nextIndex = string.length(); 84b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 85b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 86b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato list.add(string.substring(index + 1, nextIndex)); 87b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 88b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato else 89b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 90b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Parse a non-quoted string. 91b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato nextIndex = string.indexOf(',', index); 92b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato if (nextIndex < 0) 93b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 94b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato nextIndex = string.length(); 95b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 96b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 97b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato String substring = string.substring(index, nextIndex).trim(); 98b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato if (substring.length() > 0) 99b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 100b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato list.add(substring); 101b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 102b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 103b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 104b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato index = nextIndex + 1; 105b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 106b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 107b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return list; 108b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 109b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 110b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 111b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato /** 112b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Skips any whitespace characters. 113b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 114b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private static int skipWhitespace(String string, int index) 115b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 116b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato while (index < string.length() && 117b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato Character.isWhitespace(string.charAt(index))) 118b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 119b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato index++; 120b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 121b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return index; 122b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 123b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 124b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 125b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato /** 126b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Returns a quoted version of the given string, if necessary. 127b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 128b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private static String quotedString(String string) 129b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 130b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return string.length() == 0 || 131b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato string.indexOf(' ') >= 0 || 132b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato string.indexOf('@') >= 0 || 133b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato string.indexOf('{') >= 0 || 134b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato string.indexOf('}') >= 0 || 135b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato string.indexOf('(') >= 0 || 136b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato string.indexOf(')') >= 0 || 137b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato string.indexOf(':') >= 0 || 138b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato string.indexOf(';') >= 0 || 139b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato string.indexOf(',') >= 0 ? ("'" + string + "'") : 140b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato ( string ); 141b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 142b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 143b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 144b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public static void main(String[] args) 145b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 146b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato if (args.length == 1) 147b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 148b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato System.out.println("Input string: ["+args[0]+"]"); 149b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 150b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato List list = commaSeparatedList(args[0]); 151b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 152b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato System.out.println("Resulting list:"); 153b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato for (int index = 0; index < list.size(); index++) 154b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 155b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato System.out.println("["+list.get(index)+"]"); 156b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 157b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 158b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato else 159b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 160b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato List list = Arrays.asList(args); 161b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 162b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato System.out.println("Input list:"); 163b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato for (int index = 0; index < list.size(); index++) 164b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 165b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato System.out.println("["+list.get(index)+"]"); 166b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 167b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 168b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato String string = commaSeparatedString(list); 169b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 170b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato System.out.println("Resulting string: ["+string+"]"); 171b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 172b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 173b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato} 174