1 /*
   2  * Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package sun.tools.jstat;
  27 
  28 import java.io.StreamTokenizer;
  29 
  30 /**
  31  * A class for encapsulating tokens returned from StreamTokenizer primarily
  32  * for output formatting purposes.
  33  *
  34  * @author Brian Doherty
  35  * @since 1.5
  36  */
  37 public class Token {
  38     public String sval;
  39     public double nval;
  40     public int ttype;
  41 
  42     public Token(int ttype, String sval, double nval) {
  43         this.ttype = ttype;
  44         this.sval = sval;
  45         this.nval = nval;
  46     }
  47 
  48     public Token(int ttype, String sval) {
  49         this(ttype, sval, 0);
  50     }
  51 
  52     public Token(int ttype) {
  53         this(ttype, null, 0);
  54     }
  55 
  56     public String toMessage() {
  57         switch(ttype) {
  58         case StreamTokenizer.TT_EOL:
  59             return "\"EOL\"";
  60         case StreamTokenizer.TT_EOF:
  61             return "\"EOF\"";
  62         case StreamTokenizer.TT_NUMBER:
  63             return "NUMBER";
  64         case StreamTokenizer.TT_WORD:
  65             if (sval == null) {
  66                 return "IDENTIFIER";
  67             } else {
  68                 return "IDENTIFIER " + sval;
  69             }
  70         default:
  71             if (ttype == (int)'"') {
  72                 String msg = "QUOTED STRING";
  73                 if (sval != null)
  74                     msg = msg + " \"" + sval + "\"";
  75                 return msg;
  76             } else {
  77                 return "CHARACTER \'" + (char)ttype + "\'";
  78             }
  79         }
  80     }
  81 
  82     public String toString() {
  83         StringBuilder sb = new StringBuilder();
  84         switch(ttype) {
  85         case StreamTokenizer.TT_EOL:
  86             sb.append("ttype=TT_EOL");
  87             break;
  88         case StreamTokenizer.TT_EOF:
  89             sb.append("ttype=TT_EOF");
  90             break;
  91         case StreamTokenizer.TT_NUMBER:
  92             sb.append("ttype=TT_NUM,").append("nval=").append(nval);
  93             break;
  94         case StreamTokenizer.TT_WORD:
  95             if (sval == null) {
  96                 sb.append("ttype=TT_WORD:IDENTIFIER");
  97             } else {
  98                 sb.append("ttype=TT_WORD:").append("sval=").append(sval);
  99             }
 100             break;
 101         default:
 102             if (ttype == (int)'"') {
 103                 sb.append("ttype=TT_STRING:").append("sval=").append(sval);
 104             } else {
 105                 sb.append("ttype=TT_CHAR:").append((char)ttype);
 106             }
 107             break;
 108         }
 109         return sb.toString();
 110     }
 111 }