| /* |
| * 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.apache.commons.csv; |
| |
| import static org.apache.commons.csv.Token.Type.INVALID; |
| |
| /** |
| * Internal token representation. |
| * <p/> |
| * It is used as contract between the lexer and the parser. |
| */ |
| final class Token { |
| |
| enum Type { |
| /** Token has no valid content, i.e. is in its initialized state. */ |
| INVALID, |
| |
| /** Token with content, at beginning or in the middle of a line. */ |
| TOKEN, |
| |
| /** Token (which can have content) when the end of file is reached. */ |
| EOF, |
| |
| /** Token with content when the end of a line is reached. */ |
| EORECORD, |
| |
| /** Token is a comment line. */ |
| COMMENT |
| } |
| |
| /** length of the initial token (content-)buffer */ |
| private static final int INITIAL_TOKEN_LENGTH = 50; |
| |
| /** Token type */ |
| Token.Type type = INVALID; |
| |
| /** The content buffer. */ |
| final StringBuilder content = new StringBuilder(INITIAL_TOKEN_LENGTH); |
| |
| /** Token ready flag: indicates a valid token with content (ready for the parser). */ |
| boolean isReady; |
| |
| boolean isQuoted; |
| |
| void reset() { |
| content.setLength(0); |
| type = INVALID; |
| isReady = false; |
| isQuoted = false; |
| } |
| |
| /** |
| * Eases IDE debugging. |
| * |
| * @return a string helpful for debugging. |
| */ |
| @Override |
| public String toString() { |
| return type.name() + " [" + content.toString() + "]"; |
| } |
| } |