com/ohrasys/cad/bnf/BNFOptionalTest.java

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/* Copyright (C) 2004 Thomas N. Valine
 * tvaline@users.sourceforge.net
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the License, or (at your
 * option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA. */

package com.ohrasys.cad.bnf;
import java.util.*;

public class BNFOptionalTest
extends BNFAbstractTest {
  public BNFOptionalTest(BNFTestImplementor tests[])
    throws BNFTestException{super(tests);}

  public BNFTestResult test(BNFTestableObject obj) {
    playable.add(0, obj);
    while(playable.size() > 0) {
      BNFTestableObject crntToken   = playable.remove(0);
      BNFTestResult     childResult = tests[nextTest].test(crntToken);
      if(childResult.isUnfinished()){result.setResult(result.UNFINISHED);}
      else if(childResult.isFinished()) {
        committed.addAll(childResult.getCommittableTokens());
        playable.addAll(0, childResult.getReplayableTokens());
        if(collecting){collectedData.add(tests[nextTest].collect());}
        if(isLastTest()) {
          result.addCommittableTokens(committed);
          result.addReplayableTokens(playable);
          result.setResult(result.FINISHED);
          reset();
          playable.clear();
          committed.clear();
        } else {
          result.setResult(result.UNFINISHED);
          nextTest++;

          continue;
        }
      } else {
        committed.addAll(childResult.getCommittableTokens());
        playable.addAll(0, childResult.getReplayableTokens());
        result.addReplayableTokens(committed);
        result.addReplayableTokens(playable);
        result.setResult(result.FINISHED);
        collectedData.clear();
        reset();
        playable.clear();
        committed.clear();
      }
    } // end while
    BNFTestResult testResult = result;
    result = new BNFTestResult();

    return testResult;
  } // end method test

  public String toString(){return super.toString();}
} // end class BNFOptionalTest


/* This material is distributed under the GNU General Public License.
 * For more information please go to http://www.gnu.org/copyleft/gpl.html
 */

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