| /******************************************************************************* |
| * Copyright (c) 2009, 2017 Mountainminds GmbH & Co. KG and Contributors |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Marc R. Hoffmann - initial API and implementation |
| * |
| *******************************************************************************/ |
| package org.jacoco.core.matcher; |
| |
| import java.util.regex.Pattern; |
| |
| /** |
| * Matches strings against <code>?</code>/<code>*</code> wildcard expressions. |
| * Multiple expressions can be separated with a colon (:). In this case the |
| * expression matches if at least one part matches. |
| */ |
| public class WildcardMatcher implements Predicate<String> { |
| |
| private final Pattern pattern; |
| |
| /** |
| * Creates a new matcher with the given expression. |
| * |
| * @param expression |
| * wildcard expressions |
| */ |
| public WildcardMatcher(final String expression) { |
| final String[] parts = expression.split("\\:"); |
| final StringBuilder regex = new StringBuilder(expression.length() * 2); |
| boolean next = false; |
| for (final String part : parts) { |
| if (next) { |
| regex.append('|'); |
| } |
| regex.append('(').append(toRegex(part)).append(')'); |
| next = true; |
| } |
| pattern = Pattern.compile(regex.toString()); |
| } |
| |
| private static CharSequence toRegex(final String expression) { |
| final StringBuilder regex = new StringBuilder(expression.length() * 2); |
| for (final char c : expression.toCharArray()) { |
| switch (c) { |
| case '?': |
| regex.append(".?"); |
| break; |
| case '*': |
| regex.append(".*"); |
| break; |
| default: |
| regex.append(Pattern.quote(String.valueOf(c))); |
| break; |
| } |
| } |
| return regex; |
| } |
| |
| /** |
| * Matches the given string against the expressions of this matcher. |
| * |
| * @param s |
| * string to test |
| * @return <code>true</code>, if the expression matches |
| */ |
| @Override |
| public boolean apply(final String s) { |
| return pattern.matcher(s).matches(); |
| } |
| |
| } |