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Diffstat (limited to 'basic/source/inc/scanner.hxx')
| -rw-r--r-- | basic/source/inc/scanner.hxx | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/basic/source/inc/scanner.hxx b/basic/source/inc/scanner.hxx new file mode 100644 index 0000000000..51e4ed7fa5 --- /dev/null +++ b/basic/source/inc/scanner.hxx @@ -0,0 +1,96 @@ +/* -*- 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 . + */ + +#pragma once + +#include <basic/sbxdef.hxx> +#include <comphelper/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; + OUString aSaveLine; + 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 bClosingUnderscore; // true: Closing underscore followed by end of line + bool bLineEndsWithWhitespace; // true: Line ends with whitespace (BasicCharClass::isWhitespace) + + bool bInStatement; + void GenError( ErrCode ); +public: + SbiScanner( 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() const { 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() { aSaveLine = aLine; nSaveLineIdx = nLineIdx; } + void RestoreLine() { nLineIdx = nSaveLineIdx; aLine = aSaveLine; } + void LockColumn(); + void UnlockColumn(); + bool DoesColonFollow(); + + bool NextSym(); + const OUString& GetSym() const { return aSym; } + SbxDataType GetType() const { return eScanType; } + double GetDbl() const { return nVal; } +}; + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |