Merge "Fix off-by-one error in Strings.count()"
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commit
be767fd7d9
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@ -0,0 +1,73 @@
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/*
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* Copyright (C) 2017, Thomas Wolf <thomas.wolf@paranor.ch>
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* and other copyright owners as documented in the project's IP log.
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*
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* This program and the accompanying materials are made available
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* under the terms of the Eclipse Distribution License v1.0 which
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* accompanies this distribution, is reproduced below, and is
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* available at http://www.eclipse.org/org/documents/edl-v10.php
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* - Neither the name of the Eclipse Foundation, Inc. nor the
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* names of its contributors may be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package org.eclipse.jgit.ignore.internal;
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import static org.junit.Assert.assertEquals;
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import org.junit.Test;
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public class StringsTest {
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private void testString(String string, int n, int m) {
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assertEquals(string, n, Strings.count(string, '/', false));
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assertEquals(string, m, Strings.count(string, '/', true));
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}
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@Test
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public void testCount() {
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testString("", 0, 0);
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testString("/", 1, 0);
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testString("//", 2, 0);
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testString("///", 3, 1);
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testString("////", 4, 2);
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testString("foo", 0, 0);
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testString("/foo", 1, 0);
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testString("foo/", 1, 0);
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testString("/foo/", 2, 0);
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testString("foo/bar", 1, 1);
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testString("/foo/bar/", 3, 1);
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testString("/foo/bar//", 4, 2);
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testString("/foo//bar/", 4, 2);
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testString(" /foo/ ", 2, 2);
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}
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}
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@ -1,5 +1,5 @@
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/*
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* Copyright (C) 2014, Andrey Loskutov <loskutov@gmx.de>
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* Copyright (C) 2014, 2017 Andrey Loskutov <loskutov@gmx.de>
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* and other copyright owners as documented in the project's IP log.
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*
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* This program and the accompanying materials are made available
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@ -123,12 +123,15 @@ public static boolean isDirectoryPattern(String pattern) {
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static int count(String s, char c, boolean ignoreFirstLast) {
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int start = 0;
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int count = 0;
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while (true) {
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int length = s.length();
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while (start < length) {
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start = s.indexOf(c, start);
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if (start == -1)
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if (start == -1) {
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break;
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if (!ignoreFirstLast || (start != 0 && start != s.length()))
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}
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if (!ignoreFirstLast || (start != 0 && start != length - 1)) {
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count++;
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}
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start++;
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}
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return count;
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