| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.netbeans.modules.javascript2.lexer; |
| |
| import org.netbeans.modules.javascript2.lexer.api.JsTokenId; |
| import java.io.IOException; |
| import java.util.logging.Level; |
| import java.util.logging.Logger; |
| import org.netbeans.api.lexer.Token; |
| import org.netbeans.spi.lexer.Lexer; |
| import org.netbeans.spi.lexer.LexerRestartInfo; |
| import org.netbeans.spi.lexer.TokenFactory; |
| |
| |
| |
| /** |
| * |
| * @author Petr Hejl |
| */ |
| public class JsLexer implements Lexer<JsTokenId> { |
| |
| private static final Logger LOGGER = Logger.getLogger(JsLexer.class.getName()); |
| |
| private final JsColoringLexer scanner; |
| |
| private TokenFactory<JsTokenId> tokenFactory; |
| |
| private JsLexer(LexerRestartInfo<JsTokenId> info) { |
| scanner = new JsColoringLexer(info); |
| tokenFactory = info.tokenFactory(); |
| } |
| |
| public static JsLexer create(LexerRestartInfo<JsTokenId> info) { |
| synchronized (JsLexer.class) { |
| return new JsLexer(info); |
| } |
| } |
| |
| @Override |
| public Token<JsTokenId> nextToken() { |
| try { |
| JsTokenId tokenId = scanner.nextToken(); |
| LOGGER.log(Level.FINEST, "Lexed token is {0}", tokenId); |
| Token<JsTokenId> token = null; |
| if (tokenId != null) { |
| token = tokenFactory.createToken(tokenId); |
| } |
| return token; |
| } catch (IOException ex) { |
| Logger.getLogger(JsLexer.class.getName()).log(Level.SEVERE, null, ex); |
| } |
| return null; |
| } |
| |
| @Override |
| public Object state() { |
| return scanner.getState(); |
| } |
| |
| @Override |
| public void release() { |
| } |
| } |