LeadingAsteriskMatcher.java
- /*
- * Copyright (C) 2014, Andrey Loskutov <loskutov@gmx.de>
- * and other copyright owners as documented in the project's IP log.
- *
- * This program and the accompanying materials are made available
- * under the terms of the Eclipse Distribution License v1.0 which
- * accompanies this distribution, is reproduced below, and is
- * available at http://www.eclipse.org/org/documents/edl-v10.php
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials provided
- * with the distribution.
- *
- * - Neither the name of the Eclipse Foundation, Inc. nor the
- * names of its contributors may be used to endorse or promote
- * products derived from this software without specific prior
- * written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
- * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
- package org.eclipse.jgit.ignore.internal;
- /**
- * Matcher for simple regex patterns starting with an asterisk, e.g. "*.tmp"
- */
- public class LeadingAsteriskMatcher extends NameMatcher {
- LeadingAsteriskMatcher(String pattern, Character pathSeparator, boolean dirOnly) {
- super(pattern, pathSeparator, dirOnly, true);
- if (subPattern.charAt(0) != '*')
- throw new IllegalArgumentException(
- "Pattern must have leading asterisk: " + pattern); //$NON-NLS-1$
- }
- /** {@inheritDoc} */
- @Override
- public boolean matches(String segment, int startIncl, int endExcl) {
- // faster local access, same as in string.indexOf()
- String s = subPattern;
- // we don't need to count '*' character itself
- int subLength = s.length() - 1;
- // simple /*/ pattern
- if (subLength == 0)
- return true;
- if (subLength > (endExcl - startIncl))
- return false;
- for (int i = subLength, j = endExcl - 1; i > 0; i--, j--) {
- char c1 = s.charAt(i);
- char c2 = segment.charAt(j);
- if (c1 != c2)
- return false;
- }
- return true;
- }
- }