Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #ifndef INCLUDED_BASIC_SOURCE_INC_SCANNER_HXX
      21             : #define INCLUDED_BASIC_SOURCE_INC_SCANNER_HXX
      22             : 
      23             : #include <basic/sberrors.hxx>
      24             : 
      25             : // The scanner is stand-alone, i. e. it can be used from everywhere.
      26             : // A BASIC-instance is necessary for error messages. Without BASIC
      27             : // the errors are only counted. Also the BASIC is necessary when an
      28             : // advanced SBX-variable shall be used for data type recognition etc.
      29             : 
      30             : class StarBASIC;
      31             : 
      32           0 : class SbiScanner
      33             : {
      34             :     OUString   aBuf;             // input buffer
      35             :     OUString   aLine;
      36             :     const sal_Unicode* pLine;
      37             :     const sal_Unicode* pSaveLine;
      38             : 
      39             :     void scanAlphanumeric();
      40             :     void scanGoto();
      41             :     bool readLine();
      42             : protected:
      43             :     OUString aSym;
      44             :     OUString aError;
      45             :     SbxDataType eScanType;
      46             :     StarBASIC* pBasic;                  // instance for error callbacks
      47             :     double nVal;                        // numeric value
      48             :     sal_Int32 nCurCol1;
      49             :     sal_Int32 nSavedCol1;
      50             :     sal_Int32 nCol;
      51             :     sal_Int32 nErrors;
      52             :     sal_Int32 nColLock;                    // lock counter for Col1
      53             :     sal_Int32 nBufPos;
      54             :     sal_Int32 nLine;
      55             :     sal_Int32 nCol1, nCol2;
      56             :     bool   bSymbol;                     // true: symbol scanned
      57             :     bool   bNumber;                     // true: number scanned
      58             :     bool   bSpaces;                     // true: whitespace before token
      59             :     bool   bAbort;
      60             :     bool   bHash;                       // true: # has been read in
      61             :     bool   bError;                      // true: generate error
      62             :     bool   bCompatible;                 // true: OPTION compatible
      63             :     bool   bVBASupportOn;               // true: OPTION VBASupport 1 otherwise default False
      64             :     bool   bPrevLineExtentsComment;     // true: Previous line is comment and ends on "... _"
      65             : 
      66             :     bool   bInStatement;
      67             :     void   GenError( SbError );
      68             : public:
      69             :     SbiScanner( const OUString&, StarBASIC* = NULL );
      70             :    ~SbiScanner();
      71             : 
      72           0 :     void  EnableErrors()            { bError = false; }
      73           0 :     bool  IsHash()                  { return bHash;   }
      74           0 :     bool  IsCompatible()            { return bCompatible; }
      75           0 :     void  SetCompatible( bool b )   { bCompatible = b; }        // #118206
      76           0 :     bool  IsVBASupportOn()          { return bVBASupportOn; }
      77             :     void  SetVBASupportOn( bool b ) { bVBASupportOn = b; }
      78           0 :     bool  WhiteSpace()              { return bSpaces; }
      79           0 :     sal_Int32 GetErrors()           { return nErrors; }
      80           0 :     sal_Int32 GetLine()             { return nLine;   }
      81           0 :     sal_Int32 GetCol1()             { return nCol1;   }
      82             :     sal_Int32 GetCol2()             { return nCol2;   }
      83           0 :     void  SetCol1( sal_Int32 n )    { nCol1 = n;      }
      84           0 :     StarBASIC* GetBasic()           { return pBasic;  }
      85           0 :     void  SaveLine(void)            { pSaveLine = pLine; }
      86           0 :     void  RestoreLine(void)         { pLine = pSaveLine; }
      87             :     void  LockColumn();
      88             :     void  UnlockColumn();
      89             :     bool  DoesColonFollow();
      90             : 
      91             :     bool NextSym();
      92           0 :     const OUString& GetSym() { return aSym;  }
      93           0 :     SbxDataType GetType()           { return eScanType; }
      94           0 :     double    GetDbl()              { return nVal;  }
      95             : };
      96             : 
      97             : #endif
      98             : 
      99             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */