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/*
 * 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.
 * 

* It is used as contract between the lexer and the parser. */ final class Token { /** length of the initial token (content-)buffer */ private static final int INITIAL_TOKEN_LENGTH = 50; 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 } /** 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; void reset() { content.setLength(0); type = INVALID; isReady = false; } /** * Eases IDE debugging. * * @return a string helpful for debugging. */ @Override public String toString() { return type.name() + " [" + content.toString() + "]"; } }





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