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/**
 * The MIT License (MIT)
 *
 * Copyright (c) 2011-2016 Incapture Technologies LLC
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package rapture.parser;

import org.antlr.runtime.Parser;
import org.antlr.runtime.RecognitionException;
import org.antlr.runtime.RecognizerSharedState;
import org.antlr.runtime.TokenStream;

public abstract class AbstractCSVParser extends Parser {
    private CSVCallback callback;

    public void setCallback(CSVCallback callback) {
        this.callback = callback;
    }

    protected void startNewLine() {
        callback.startNewLine();
    }

    protected void addCell(String cell) {
        callback.addCell(cell);
    }

    /**
     * Create a new parser instance, pre-supplying the input token stream.
     * 
     * @param input
     *            The stream of tokens that will be pulled from the lexer
     */
    protected AbstractCSVParser(TokenStream input) {
        super(input);
    }

    /**
     * Create a new parser instance, pre-supplying the input token stream and
     * the shared state.
     * 
     * This is only used when a grammar is imported into another grammar, but we
     * must supply this constructor to satisfy the super class contract.
     * 
     * @param input
     *            The stream of tokesn that will be pulled from the lexer
     * @param state
     *            The shared state object created by an interconnectd grammar
     */
    protected AbstractCSVParser(TokenStream input, RecognizerSharedState state) {
        super(input, state);
    }

    /**
     * Creates the error/warning message that we need to show users/IDEs when
     * ANTLR has found a parsing error, has recovered from it and is now telling
     * us that a parsing exception occurred.
     * 
     * @param tokenNames
     *            token names as known by ANTLR (which we ignore)
     * @param e
     *            The exception that was thrown
     */
    @Override
    public void displayRecognitionError(String[] tokenNames, RecognitionException e) {

        // This is just a place holder that shows how to override this method
        //
        super.displayRecognitionError(tokenNames, e);
    }
}