javacc-7.0.3.src.main.java.org.javacc.parser.Sequence Maven / Gradle / Ivy

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JavaCC is a parser/scanner generator for Java.

There is a newer version: 7.0.13

/* Copyright (c) 2006, Sun Microsystems, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
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 *       this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
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 *     * Neither the name of the Sun Microsystems, Inc. nor the names of its
 *       contributors may be used to endorse or promote products derived from
 *       this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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package org.javacc.parser;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Set;

/**
 * Describes expansions that are sequences of expansion
 * units.  (c1 c2 ...)
 */

public class Sequence extends Expansion {

  /**
   * The list of units in this expansion sequence.  Each
   * List component will narrow to Expansion.
   */
  public List units = new ArrayList