/*

 * Copyright 1998 Sun Microsystems, Inc.  All Rights Reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code 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

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

/* @test

   @bug 4106810 4027740 4078997 4097738

   @summary Make sure StreamTokenizer will correctly

            parse different types of comments in input.

   */

import java.io.*;

public class Comment {

    public static void main(String[] args) throws Exception {

        File f = new File(System.getProperty("test.src", "."), "input.txt");

        int slashIsCommentStart = 1;

        int slashSlashComment = 2;

        int slashStarComment = 4;

        for (int i = 0; i < 8 ; i++) {

            StreamTokenizer st = new StreamTokenizer(new FileReader(f));

            /* decide the state of this run */

            boolean slashCommentFlag = ((i & slashIsCommentStart) != 0);

            boolean slashSlashCommentFlag = ((i & slashSlashComment) != 0);

            boolean slashStarCommentFlag = ((i & slashStarComment) != 0);

            /* set the initial state of the tokenizer */

            if (!slashCommentFlag) {

                st.ordinaryChar('/');

            }

            st.slashSlashComments(slashSlashCommentFlag);

            st.slashStarComments(slashStarCommentFlag);

            /* now go throgh the input file */

            while(st.nextToken() != StreamTokenizer.TT_EOF)

            {

                String token = st.sval;

                if (token == null) {

                    continue;

                } else {

                    if ((token.compareTo("Error1") == 0) && slashStarCommentFlag) {

                        throw new Exception("Failed to pass one line C comments!");

                    }

                    if ((token.compareTo("Error2") == 0) && slashStarCommentFlag) {

                        throw new Exception("Failed to pass multi line C comments!");

                    }

                    if ((token.compareTo("Error3") == 0) && slashSlashCommentFlag) {

                        throw new Exception("Failed to pass C++ comments!");

                    }

                    if ((token.compareTo("Error4") == 0) && slashCommentFlag) {

                        throw new Exception("Failed to pass / comments!");

                    }

                }

            }

        }

    }

}