org.sonar.cxx.checks.CommentContainsPatternChecker.java Source code

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Here is the source code for org.sonar.cxx.checks.CommentContainsPatternChecker.java

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/*
 * Sonar C++ Plugin (Community)
 * Copyright (C) 2011 Waleri Enns and CONTACT Software GmbH
 * dev@sonar.codehaus.org
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
 */
package org.sonar.cxx.checks;

import com.sonar.sslr.api.Token;
import com.sonar.sslr.api.Trivia;
import com.sonar.sslr.squid.checks.SquidCheck;
import org.apache.commons.lang.StringUtils;

public class CommentContainsPatternChecker {

    private final SquidCheck<?> check;
    private final String pattern;
    private final String message;

    public CommentContainsPatternChecker(SquidCheck<?> check, String pattern, String message) {
        this.check = check;
        this.pattern = pattern;
        this.message = message;
    }

    public void visitToken(Token token) {
        for (Trivia trivia : token.getTrivia()) {
            String comment = trivia.getToken().getOriginalValue();
            if (StringUtils.containsIgnoreCase(comment, pattern)) {
                String[] lines = comment.split("\r\n?|\n");

                for (int i = 0; i < lines.length; i++) {
                    if (StringUtils.containsIgnoreCase(lines[i], pattern) && !isLetterAround(lines[i], pattern)) {
                        check.getContext().createLineViolation(check, message, trivia.getToken().getLine() + i);
                    }
                }
            }
        }
    }

    private boolean isLetterAround(String line, String pattern) {
        int start = StringUtils.indexOfIgnoreCase(line, pattern);
        int end = start + pattern.length();

        boolean pre = start > 0 ? Character.isLetter(line.charAt(start - 1)) : false;
        boolean post = end < line.length() - 1 ? Character.isLetter(line.charAt(end)) : false;

        return pre || post;
    }

}