/*
* 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.preprocessor;
import com.sonar.sslr.api.Preprocessor;
import com.sonar.sslr.impl.Lexer;
import com.sonar.sslr.impl.channel.BlackHoleChannel;
import org.sonar.cxx.CxxConfiguration;
import org.sonar.cxx.channels.PreprocessorChannel;
import static com.sonar.sslr.impl.channel.RegexpChannelBuilder.ANY_CHAR;
import static com.sonar.sslr.impl.channel.RegexpChannelBuilder.commentRegexp;
public final class IncludeLexer {
private IncludeLexer() {
}
public static Lexer create(Preprocessor... preprocessors) {
return create(new CxxConfiguration(), preprocessors);
}
public static Lexer create(CxxConfiguration conf, Preprocessor... preprocessors) {
Lexer.Builder builder = Lexer.builder()
.withCharset(conf.getCharset())
.withFailIfNoChannelToConsumeOneCharacter(true)
.withChannel(new BlackHoleChannel("\\s"))
.withChannel(new PreprocessorChannel())
.withChannel(commentRegexp("/\\*", ANY_CHAR + "*?", "\\*/"))
.withChannel(new BlackHoleChannel(".*"));
for (Preprocessor preprocessor : preprocessors) {
builder.withPreprocessor(preprocessor);
}
return builder.build();
}
}