/*
 * Copyright (C) 2014-2015 Nagisa Sekiguchi
 *
 * Licensed 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 aquarius;

/**
 * represent for token
 *
 * @author skgchxngsxyz-opensuse
 */
public class Token {
    protected int startPos;
    protected int size;

    public Token(int startPos, int size) {
        this.startPos = startPos;
        this.size = size;
    }

    /**
     * get token start position. inclusive
     *
     * @return
     */
    public int getStartPos() {
        return this.startPos;
    }

    /**
     * get token text size.
     *
     * @return
     */
    public int getSize() {
        return this.size;
    }

    @Override
    public String toString() {
        return "token<" + this.startPos + ":" + this.size + ">";
    }

    @Override
    public boolean equals(Object target) {
        if(target instanceof Token) {
            Token token = (Token) target;
            return this.getStartPos() == token.getStartPos() &&
                    this.getSize() == token.getSize();
        }
        return false;
    }
}
