| /* |
| * ProGuard -- shrinking, optimization, obfuscation, and preverification |
| * of Java bytecode. |
| * |
| * Copyright (c) 2002-2017 Eric Lafortune @ GuardSquare |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License as published by the Free |
| * Software Foundation; either version 2 of the License, or (at your option) |
| * any later version. |
| * |
| * This program 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 for |
| * more details. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write to the Free Software Foundation, Inc., |
| * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| package proguard.util; |
| |
| /** |
| * This StringMatcher tests whether strings end in a given extension, ignoring |
| * its case. |
| * |
| * @author Eric Lafortune |
| */ |
| public class ExtensionMatcher extends StringMatcher |
| { |
| private final String extension; |
| |
| |
| /** |
| * Creates a new StringMatcher. |
| * @param extension the extension against which strings will be matched. |
| */ |
| public ExtensionMatcher(String extension) |
| { |
| this.extension = extension; |
| } |
| |
| |
| // Implementations for StringMatcher. |
| |
| protected boolean matches(String string, int offset, int length) |
| { |
| return endsWithIgnoreCase(string, offset, length, extension); |
| } |
| |
| |
| /** |
| * Returns whether the given string ends with the given suffix, ignoring its |
| * case. |
| */ |
| private static boolean endsWithIgnoreCase(String string, int offset, int length, String suffix) |
| { |
| int suffixLength = suffix.length(); |
| |
| return string.regionMatches(true, offset + length - suffixLength, suffix, 0, suffixLength); |
| } |
| } |