/*

 * Copyright (c) 2004, Oracle and/or its affiliates. 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.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package sun.tools.jstat;

import java.io.StreamTokenizer;

/**

 * A class for encapsulating tokens returned from StreamTokenizer primarily

 * for output formatting purposes.

 *

 * @author Brian Doherty

 * @since 1.5

 */

public class Token {

    public String sval;

    public double nval;

    public int ttype;

    public Token(int ttype, String sval, double nval) {

        this.ttype = ttype;

        this.sval = sval;

        this.nval = nval;

    }

    public Token(int ttype, String sval) {

        this(ttype, sval, 0);

    }

    public Token(int ttype) {

        this(ttype, null, 0);

    }

    public String toMessage() {

        switch(ttype) {

        case StreamTokenizer.TT_EOL:

            return "\"EOL\"";

        case StreamTokenizer.TT_EOF:

            return "\"EOF\"";

        case StreamTokenizer.TT_NUMBER:

            return "NUMBER";

        case StreamTokenizer.TT_WORD:

            if (sval == null) {

                return "IDENTIFIER";

            } else {

                return "IDENTIFIER " + sval;

            }

        default:

            if (ttype == (int)'"') {

                String msg = "QUOTED STRING";

                if (sval != null)

                    msg = msg + " \"" + sval + "\"";

                return msg;

            } else {

                return "CHARACTER \'" + (char)ttype + "\'";

            }

        }

    }

    public String toString() {

        StringBuilder sb = new StringBuilder();

        switch(ttype) {

        case StreamTokenizer.TT_EOL:

            sb.append("ttype=TT_EOL");

            break;

        case StreamTokenizer.TT_EOF:

            sb.append("ttype=TT_EOF");

            break;

        case StreamTokenizer.TT_NUMBER:

            sb.append("ttype=TT_NUM,").append("nval="+nval);

            break;

        case StreamTokenizer.TT_WORD:

            if (sval == null) {

                sb.append("ttype=TT_WORD:IDENTIFIER");

            } else {

                sb.append("ttype=TT_WORD:").append("sval="+sval);

            }

            break;

        default:

            if (ttype == (int)'"') {

                sb.append("ttype=TT_STRING:").append("sval="+sval);

            } else {

                sb.append("ttype=TT_CHAR:").append((char)ttype);

            }

            break;

        }

        return sb.toString();

    }

}