/*
* SonarQube JavaScript Plugin
* Copyright (C) 2011 SonarSource and Eriks Nukis
* 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.plugins.javascript.cpd;
import com.sonar.sslr.api.GenericTokenType;
import com.sonar.sslr.api.Token;
import com.sonar.sslr.impl.Lexer;
import net.sourceforge.pmd.cpd.SourceCode;
import net.sourceforge.pmd.cpd.TokenEntry;
import net.sourceforge.pmd.cpd.Tokenizer;
import net.sourceforge.pmd.cpd.Tokens;
import org.sonar.javascript.EcmaScriptConfiguration;
import org.sonar.javascript.lexer.EcmaScriptLexer;
import java.io.File;
import java.nio.charset.Charset;
import java.util.List;
public class JavaScriptTokenizer implements Tokenizer {
private final Charset charset;
public JavaScriptTokenizer(Charset charset) {
this.charset = charset;
}
@Override
public final void tokenize(SourceCode source, Tokens cpdTokens) {
Lexer lexer = EcmaScriptLexer.create(new EcmaScriptConfiguration(charset));
String fileName = source.getFileName();
List<Token> tokens = lexer.lex(new File(fileName));
for (Token token : tokens) {
TokenEntry cpdToken = new TokenEntry(getTokenImage(token), fileName, token.getLine());
cpdTokens.add(cpdToken);
}
cpdTokens.add(TokenEntry.getEOF());
}
private String getTokenImage(Token token) {
if (token.getType() == GenericTokenType.LITERAL) {
return GenericTokenType.LITERAL.getValue();
}
return token.getValue();
}
}