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Diffstat (limited to 'basic/source/inc/scanner.hxx')
| -rw-r--r-- | basic/source/inc/scanner.hxx | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/basic/source/inc/scanner.hxx b/basic/source/inc/scanner.hxx new file mode 100644 index 000000000000..5abfc1efdd3c --- /dev/null +++ b/basic/source/inc/scanner.hxx @@ -0,0 +1,147 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +#ifndef _SCANNER_HXX +#define _SCANNER_HXX + +#include <tools/string.hxx> +#include <basic/sberrors.hxx> + +// Der Scanner ist stand-alone, d.h. er kann von ueberallher verwendet +// werden. Eine BASIC-Instanz ist fuer Fehlermeldungen notwendig. Ohne +// BASIC werden die Fehler nur gezaehlt. Auch ist Basic notwendig, wenn +// eine erweiterte SBX-Variable zur Erkennung von Datentypen etc. verwendet +// werden soll. + +class StarBASIC; + +class SbiScanner +{ + ::rtl::OUString aBuf; // Input-Puffer + ::rtl::OUString aLine; // aktuelle Zeile + const sal_Unicode* pLine; // Pointer + const sal_Unicode* pSaveLine; // Merker fuer Line +protected: + String aSym; // Symbolpuffer + String aError; // Fehler-String + SbxDataType eScanType; // evtl. Datentyp + StarBASIC* pBasic; // Instanz fuer Fehler-Callbacks + double nVal; // numerischer Wert + short nCurCol1; // aktuelle Spalte 1 + short nSavedCol1; // gerettete Spalte 1 + short nCol; // aktuelle Spaltennummer + short nErrors; // Anzahl Fehler + short nColLock; // Lock-Zaehler fuer Col1 + sal_Int32 nBufPos; // aktuelle Buffer-Pos + sal_uInt16 nLine; // aktuelle Zeile + sal_uInt16 nCol1, nCol2; // aktuelle 1. und 2. Spalte + sal_Bool bSymbol; // sal_True: Symbol gescannt + sal_Bool bNumber; // sal_True: Zahl gescannt + sal_Bool bSpaces; // sal_True: Whitespace vor Token + sal_Bool bErrors; // sal_True: Fehler generieren + sal_Bool bAbort; // sal_True: abbrechen + sal_Bool bHash; // sal_True: # eingelesen + sal_Bool bError; // sal_True: Fehler generieren + sal_Bool bUsedForHilite; // sal_True: Nutzung fuer Highlighting + sal_Bool bCompatible; // sal_True: OPTION Compatibl + sal_Bool bVBASupportOn; // sal_True: OPTION VBASupport 1 otherwise default False + sal_Bool bPrevLineExtentsComment; // sal_True: Previous line is comment and ends on "... _" + + void GenError( SbError ); +public: + SbiScanner( const ::rtl::OUString&, StarBASIC* = NULL ); + ~SbiScanner(); + + void EnableErrors() { bError = sal_False; } + sal_Bool IsHash() { return bHash; } + sal_Bool IsCompatible() { return bCompatible; } + void SetCompatible( bool b ) { bCompatible = b; } // #118206 + sal_Bool IsVBASupportOn() { return bVBASupportOn; } + void SetVBASupportOn( bool b ) { bVBASupportOn = b; } + sal_Bool WhiteSpace() { return bSpaces; } + short GetErrors() { return nErrors; } + short GetLine() { return nLine; } + short GetCol1() { return nCol1; } + short GetCol2() { return nCol2; } + void SetCol1( short n ) { nCol1 = n; } + StarBASIC* GetBasic() { return pBasic; } + void SaveLine(void) { pSaveLine = pLine; } + void RestoreLine(void) { pLine = pSaveLine; } + void LockColumn(); + void UnlockColumn(); + sal_Bool DoesColonFollow(); + + sal_Bool NextSym(); // naechstes Symbol lesen + const String& GetSym() { return aSym; } + SbxDataType GetType() { return eScanType; } + double GetDbl() { return nVal; } +}; + +class LetterTable +{ + bool IsLetterTab[256]; + +public: + LetterTable( void ); + + inline bool isLetter( sal_Unicode c ) + { + bool bRet = (c < 256) ? IsLetterTab[c] : isLetterUnicode( c ); + return bRet; + } + bool isLetterUnicode( sal_Unicode c ); +}; + +class BasicSimpleCharClass +{ + static LetterTable aLetterTable; + +public: + static sal_Bool isAlpha( sal_Unicode c, bool bCompatible ) + { + sal_Bool bRet = (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') + || (bCompatible && aLetterTable.isLetter( c )); + return bRet; + } + + static sal_Bool isDigit( sal_Unicode c ) + { + sal_Bool bRet = (c >= '0' && c <= '9'); + return bRet; + } + + static sal_Bool isAlphaNumeric( sal_Unicode c, bool bCompatible ) + { + sal_Bool bRet = isDigit( c ) || isAlpha( c, bCompatible ); + return bRet; + } +}; + +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |