org.sonar.javascript.checks.TrailingWhitespaceCheck Maven / Gradle / Ivy
/*
* SonarQube JavaScript Plugin
* Copyright (C) 2011 SonarSource and Eriks Nukis
* [email protected]
*
* 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.javascript.checks;
import com.google.common.io.Files;
import com.sonar.sslr.api.AstNode;
import com.sonar.sslr.squid.checks.SquidCheck;
import org.sonar.api.utils.SonarException;
import org.sonar.check.BelongsToProfile;
import org.sonar.check.Priority;
import org.sonar.check.Rule;
import org.sonar.javascript.CharsetAwareVisitor;
import org.sonar.javascript.lexer.EcmaScriptLexer;
import org.sonar.sslr.parser.LexerlessGrammar;
import java.io.IOException;
import java.nio.charset.Charset;
import java.util.List;
import java.util.regex.Pattern;
@Rule(
key = "TrailingWhitespace",
priority = Priority.MAJOR)
@BelongsToProfile(title = CheckList.SONAR_WAY_PROFILE, priority = Priority.MAJOR)
public class TrailingWhitespaceCheck extends SquidCheck implements CharsetAwareVisitor {
private Charset charset;
public void setCharset(Charset charset) {
this.charset = charset;
}
@Override
public void visitFile(AstNode astNode) {
List lines;
try {
lines = Files.readLines(getContext().getFile(), charset);
} catch (IOException e) {
throw new SonarException(e);
}
for (int i = 0; i < lines.size(); i++) {
String line = lines.get(i);
if (line.length() > 0 && Pattern.matches("[" + EcmaScriptLexer.WHITESPACE + "]", line.subSequence(line.length() - 1, line.length()))) {
getContext().createLineViolation(this, "Remove the useless trailing whitespaces at the end of this line.", i + 1);
}
}
}
}