147 lines
5.1 KiB
C++
147 lines
5.1 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#ifndef _SCANNER_HXX
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#define _SCANNER_HXX
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#include <tools/string.hxx>
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#include <basic/sberrors.hxx>
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// The scanner is stand-alone, i. e. it can be used from everywhere.
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// A BASIC-instance is necessary for error messages. Without BASIC
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// the errors are only counted. Also the BASICC is necessary when an
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// advanced SBX-variable shall be used for data type recognition etc.
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class StarBASIC;
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class SbiScanner
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{
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::rtl::OUString aBuf; // input buffer
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::rtl::OUString aLine;
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const sal_Unicode* pLine;
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const sal_Unicode* pSaveLine;
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protected:
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::rtl::OUString aSym;
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String aError;
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SbxDataType eScanType;
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StarBASIC* pBasic; // instance for error callbacks
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double nVal; // numeric value
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short nCurCol1;
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short nSavedCol1;
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short nCol;
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short nErrors;
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short nColLock; // lock counter for Col1
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sal_Int32 nBufPos;
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sal_uInt16 nLine;
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sal_uInt16 nCol1, nCol2;
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sal_Bool bSymbol; // sal_True: symbol scanned
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sal_Bool bNumber; // sal_True: number scanned
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sal_Bool bSpaces; // sal_True: whitespace before token
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sal_Bool bErrors; // sal_True: generate errors
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sal_Bool bAbort;
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sal_Bool bHash; // sal_True: # has been read in
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sal_Bool bError; // sal_True: generate error
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sal_Bool bUsedForHilite;
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sal_Bool bCompatible; // sal_True: OPTION compatible
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sal_Bool bVBASupportOn; // sal_True: OPTION VBASupport 1 otherwise default False
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sal_Bool bPrevLineExtentsComment; // sal_True: Previous line is comment and ends on "... _"
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void GenError( SbError );
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public:
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SbiScanner( const ::rtl::OUString&, StarBASIC* = NULL );
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~SbiScanner();
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void EnableErrors() { bError = sal_False; }
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sal_Bool IsHash() { return bHash; }
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sal_Bool IsCompatible() { return bCompatible; }
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void SetCompatible( bool b ) { bCompatible = b; } // #118206
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sal_Bool IsVBASupportOn() { return bVBASupportOn; }
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void SetVBASupportOn( bool b ) { bVBASupportOn = b; }
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sal_Bool WhiteSpace() { return bSpaces; }
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short GetErrors() { return nErrors; }
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short GetLine() { return nLine; }
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short GetCol1() { return nCol1; }
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short GetCol2() { return nCol2; }
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void SetCol1( short n ) { nCol1 = n; }
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StarBASIC* GetBasic() { return pBasic; }
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void SaveLine(void) { pSaveLine = pLine; }
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void RestoreLine(void) { pLine = pSaveLine; }
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void LockColumn();
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void UnlockColumn();
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sal_Bool DoesColonFollow();
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sal_Bool NextSym();
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const ::rtl::OUString& GetSym() { return aSym; }
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SbxDataType GetType() { return eScanType; }
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double GetDbl() { return nVal; }
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};
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class LetterTable
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{
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bool IsLetterTab[256];
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public:
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LetterTable( void );
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inline bool isLetter( sal_Unicode c )
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{
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bool bRet = (c < 256) ? IsLetterTab[c] : isLetterUnicode( c );
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return bRet;
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}
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bool isLetterUnicode( sal_Unicode c );
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};
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class BasicSimpleCharClass
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{
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static LetterTable aLetterTable;
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public:
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static sal_Bool isAlpha( sal_Unicode c, bool bCompatible )
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{
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sal_Bool bRet = (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')
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|| (bCompatible && aLetterTable.isLetter( c ));
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return bRet;
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}
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static sal_Bool isDigit( sal_Unicode c )
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{
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sal_Bool bRet = (c >= '0' && c <= '9');
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return bRet;
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}
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static sal_Bool isAlphaNumeric( sal_Unicode c, bool bCompatible )
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{
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sal_Bool bRet = isDigit( c ) || isAlpha( c, bCompatible );
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return bRet;
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}
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};
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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