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1   ////////////////////////////////////////////////////////////////////////////////
2   // MillScript-Excel: an Open Spice interpreter and batch website creation tool
3   // Copyright (C) 2006 Open World Ltd, Kevin Rogers
4   //
5   // This file is part of MillScript-Excel.
6   //
7   // MillScript-Excel is free software; you can redistribute it and/or modify it under
8   // the terms of the GNU General Public License as published by the Free
9   // Software Foundation; either version 2 of the License, or (at your option)
10  // any later version.
11  //
12  // MillScript-Excel is distributed in the hope that it will be useful, but WITHOUT
13  // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14  // FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
15  // more details.
16  //
17  // You should have received a copy of the GNU General Public License along with
18  // MillScript-Excel; if not, write to the Free Software Foundation, Inc., 59 Temple
19  // Place, Suite 330, Boston, MA  02111-1307  USA
20  ////////////////////////////////////////////////////////////////////////////////
21  package org.millscript.office.excel.records.formula;
22  
23  import org.millscript.millscript.expr.ConstantExpr;
24  import org.millscript.office.excel.FormulaTokenSyntax;
25  import org.millscript.office.excel.FormulaTokenizer;
26  import org.millscript.office.excel.alerts.BIFFAlert;
27  import org.millscript.office.excel.versions.BIFF2;
28  import org.millscript.office.excel.versions.BIFF3;
29  import org.millscript.office.excel.versions.BIFF4S;
30  import org.millscript.office.excel.versions.BIFF4W;
31  import org.millscript.office.excel.versions.BIFF5;
32  import org.millscript.office.excel.versions.BIFF7;
33  import org.millscript.office.excel.versions.BIFF8;
34  import org.millscript.office.excel.versions.BIFF8X;
35  
36  /**
37   * 
38   */
39  public class BoolTokenSyntax extends FormulaTokenSyntax implements BIFF2, BIFF3, BIFF4S, BIFF4W, BIFF5, BIFF7, BIFF8, BIFF8X {
40  
41      /**
42       * @see org.millscript.office.excel.FormulaTokenSyntax#newToken(org.millscript.office.excel.FormulaTokenizer)
43       */
44      @Override
45      public void newToken( final FormulaTokenizer tokenizer ) {
46          // Boolean
47          final byte bool = tokenizer.readByte();
48          switch ( bool ) {
49              case 0x00:
50                  tokenizer.pushExpr(
51                      new ConstantExpr( Boolean.FALSE )
52                  );
53              case 0x01:
54                  tokenizer.pushExpr(
55                      new ConstantExpr( Boolean.TRUE )
56                  );
57              default:
58                  throw new BIFFAlert(
59                      "Unexpected value for tBool formula token"
60                  ).culprit( "value", bool ).mishap();
61          }
62      }
63  
64  }