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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef INCLUDED_BASIC_SOURCE_INC_SCANNER_HXX
#define INCLUDED_BASIC_SOURCE_INC_SCANNER_HXX
#include <basic/sbxdef.hxx>
#include <vcl/errcode.hxx>
// The scanner is stand-alone, i. e. it can be used from everywhere.
// A BASIC-instance is necessary for error messages. Without BASIC
// the errors are only counted. Also the BASIC is necessary when an
// advanced SBX-variable shall be used for data type recognition etc.
class StarBASIC;
class SbiScanner
{
OUString aBuf; // input buffer
OUString aLine;
sal_Int32 nLineIdx;
sal_Int32 nSaveLineIdx;
StarBASIC* pBasic; // instance for error callbacks
void scanAlphanumeric();
void scanGoto();
bool readLine();
protected:
OUString aSym;
OUString aError;
SbxDataType eScanType;
double nVal; // numeric value
sal_Int32 nSavedCol1;
sal_Int32 nCol;
sal_Int32 nErrors;
sal_Int32 nColLock; // lock counter for Col1
sal_Int32 nBufPos;
sal_Int32 nLine;
sal_Int32 nCol1, nCol2;
bool bSymbol; // true: symbol scanned
bool bNumber; // true: number scanned
bool bSpaces; // true: whitespace before token
bool bAbort;
bool bHash; // true: # has been read in
bool bError; // true: generate error
bool bCompatible; // true: OPTION compatible
bool bVBASupportOn; // true: OPTION VBASupport 1 otherwise default False
bool bPrevLineExtentsComment; // true: Previous line is comment and ends on "... _"
bool bInStatement;
void GenError( ErrCode );
public:
SbiScanner( const OUString&, StarBASIC* = nullptr );
void EnableErrors() { bError = false; }
bool IsHash() const { return bHash; }
bool IsCompatible() const { return bCompatible; }
void SetCompatible( bool b ) { bCompatible = b; } // #118206
bool IsVBASupportOn() const { return bVBASupportOn; }
bool WhiteSpace() { return bSpaces; }
sal_Int32 GetErrors() const { return nErrors; }
sal_Int32 GetLine() const { return nLine; }
sal_Int32 GetCol1() const { return nCol1; }
void SetCol1( sal_Int32 n ) { nCol1 = n; }
StarBASIC* GetBasic() { return pBasic; }
void SaveLine() { nSaveLineIdx = nLineIdx; }
void RestoreLine() { nLineIdx = nSaveLineIdx; }
void LockColumn();
void UnlockColumn();
bool DoesColonFollow();
bool NextSym();
const OUString& GetSym() const { return aSym; }
SbxDataType GetType() const { return eScanType; }
double GetDbl() const { return nVal; }
};
#endif
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