blob: cc0fe937b4ab7513368df459aa85b269b3357bc0 [file] [log] [blame]
/*
* 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); //$NON-NLS-1$
}
@Override
public boolean matches(String segment, int startIncl, int endExcl,
boolean assumeDirectory) {
// 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;
}
}