xref: /AOO41X/main/basic/source/inc/runtime.hxx (revision cdf0e10c4e3984b49a9502b011690b615761d4a3)

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 *
 * 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
 *
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 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
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 *
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 * 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.
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#ifndef _SBRUNTIME_HXX
#define _SBRUNTIME_HXX

#ifndef _SBX_HXX
#include <basic/sbx.hxx>
#endif

#include "sb.hxx"

// Define activates class UCBStream in iosys.cxx
#define _USE_UNO

#ifdef _USE_UNO
#include <rtl/ustring.hxx>
#include <com/sun/star/uno/Sequence.hxx>
#include <osl/file.hxx>
#include <rtl/math.hxx>
#include <i18npool/lang.h>

#include <vector>
#include <com/sun/star/lang/XComponent.hpp>
#include <com/sun/star/container/XEnumeration.hpp>
#include <unotools/localedatawrapper.hxx>

using namespace com::sun::star::uno;
using namespace com::sun::star::lang;
using namespace com::sun::star::container;


// Define activates old file implementation
// (only in non UCB case)
// #define _OLD_FILE_IMPL


//#include <sal/types.h>
//#include <rtl/byteseq.hxx>
//#include <rtl/ustring>


namespace basicEncoder
{

// TODO: Use exported functionality (code is copied from deamons2/ucb)
class AsciiEncoder
{
public:
	static ::rtl::OUString decodeUnoUrlParamValue(const rtl::OUString & rSource);
	//static ::rtl::OUString encodeUnoUrlParamValue(const rtl::OUString & rSource);
	//static ::rtl::ByteSequence decode(const ::rtl::OUString & string);
	//static ::rtl::OUString encode(const ::rtl::ByteSequence & bytes);
	//static void test();
};

}

#endif /* _USE_UNO */

class SbiInstance;					// aktiver StarBASIC-Prozess
class SbiRuntime;					// aktive StarBASIC-Prozedur-Instanz

struct SbiArgvStack;                // Argv stack element
struct SbiGosubStack;               // GOSUB stack element
class  SbiImage;                    // Code-Image
class  SbiIoSystem;                 // Dateisystem
class  SbiDdeControl;				// DDE-Steuerung
class  SbiDllMgr;					// Aufrufe in DLLs
class  SvNumberFormatter;			// Zeit/Datumsfunktionen

enum ForType
{
	FOR_TO,
	FOR_EACH_ARRAY,
	FOR_EACH_COLLECTION,
	FOR_EACH_XENUMERATION
};

struct SbiForStack { 		  		// for/next stack:
	SbiForStack*	pNext;	   		// Chain
	SbxVariableRef	refVar;	   		// loop variable
	SbxVariableRef	refEnd;	   		// end expression / for each: Array/BasicCollection object
	SbxVariableRef	refInc;	   		// increment expression

	// For each support
	ForType			eForType;
	sal_Int32			nCurCollectionIndex;
	sal_Int32*			pArrayCurIndices;
	sal_Int32*			pArrayLowerBounds;
	sal_Int32*			pArrayUpperBounds;
	Reference< XEnumeration > xEnumeration;

	SbiForStack( void )
		: pArrayCurIndices( NULL )
		, pArrayLowerBounds( NULL )
		, pArrayUpperBounds( NULL )
	{}
	~SbiForStack()
	{
		delete[] pArrayCurIndices;
		delete[] pArrayLowerBounds;
		delete[] pArrayUpperBounds;
	}
};

struct SbiGosubStack {				// GOSUB-Stack:
	SbiGosubStack* pNext;			// Chain
	const sal_uInt8* pCode;				// Return-Pointer
	sal_uInt16 nStartForLvl;			// #118235: For Level in moment of gosub
};

#define MAXRECURSION 500            // max. 500 Rekursionen

#define Sb_ATTR_NORMAL		0x0000
#define Sb_ATTR_HIDDEN 		0x0002
#define Sb_ATTR_SYSTEM		0x0004
#define Sb_ATTR_VOLUME		0x0008
#define Sb_ATTR_DIRECTORY	0x0010
#define Sb_ATTR_ARCHIVE		0x0020


class Dir;
class WildCard;

class SbiRTLData
{
public:

#ifdef _OLD_FILE_IMPL
	Dir* 	pDir;
#else
	::osl::Directory* pDir;
#endif
	sal_Int16	nDirFlags;
	short	nCurDirPos;

	String sFullNameToBeChecked;
	WildCard* pWildCard;

#ifdef _USE_UNO
	Sequence< ::rtl::OUString > aDirSeq;
#endif /* _USE_UNO */

	SbiRTLData();
	~SbiRTLData();
};

// Die Instanz entspricht einem laufenden StarBASIC. Mehrere gleichzeitig
// laufende BASICs werden ueber verkettete Instanzen verwaltet. Hier liegen
// alle Daten, die nur leben, wenn BASIC auch lebt, wie z.B. das I/O-System.

typedef ::std::vector
<
    ::com::sun::star::uno::Reference< ::com::sun::star::lang::XComponent >
>
ComponentVector_t;


class SbiInstance
{
	friend class SbiRuntime;

	SbiRTLData		aRTLData;

	SbiIoSystem* 	pIosys;         // Dateisystem
	SbiDdeControl*	pDdeCtrl;       // DDE
	SbiDllMgr*		pDllMgr;		// DLL-Calls (DECLARE)
	StarBASIC*  	pBasic;
	SvNumberFormatter* pNumberFormatter;
    LanguageType    meFormatterLangType;
    DateFormat      meFormatterDateFormat;
	sal_uInt32 		nStdDateIdx, nStdTimeIdx, nStdDateTimeIdx;

	SbError      	nErr;     		// aktueller Fehlercode
	String		    aErrorMsg;		// letzte Error-Message fuer $ARG
	sal_uInt16      	nErl;			// aktuelle Fehlerzeile
	sal_Bool			bReschedule;	// Flag: sal_True = Reschedule in Hauptschleife
	sal_Bool			bCompatibility; // Flag: sal_True = VBA runtime compatibility mode

    ComponentVector_t ComponentVector;

public:
	SbiRuntime*  pRun;        		// Call-Stack
	SbiInstance* pNext;             // Instanzen-Chain

	// #31460 Neues Konzept fuer StepInto/Over/Out,
	// Erklaerung siehe runtime.cxx bei SbiInstance::CalcBreakCallLevel()
	sal_uInt16	nCallLvl;				// Call-Level (wg. Rekursion)
	sal_uInt16	nBreakCallLvl;			// Call-Level zum Anhalten
	void	CalcBreakCallLevel( sal_uInt16 nFlags );	// Gemaess Flags setzen

	SbiInstance( StarBASIC* );
   ~SbiInstance();

	void Error( SbError );			            // trappable Error
	void Error( SbError, const String& rMsg );	// trappable Error mit Message
	void ErrorVB( sal_Int32 nVBNumber, const String& rMsg );
	void setErrorVB( sal_Int32 nVBNumber, const String& rMsg );
	void FatalError( SbError );		            // non-trappable Error
	void FatalError( SbError, const String& );  // non-trappable Error
	void Abort();					            // Abbruch mit aktuellem Fehlercode

	void    Stop();
	SbError GetErr()				{ return nErr; }
	String	GetErrorMsg()			{ return aErrorMsg; }
	xub_StrLen GetErl()				{ return nErl; }
	void	EnableReschedule( sal_Bool bEnable ) { bReschedule = bEnable; }
	sal_Bool	IsReschedule( void ) { return bReschedule; }
	void	EnableCompatibility( sal_Bool bEnable ) { bCompatibility = bEnable; }
	sal_Bool	IsCompatibility( void ) { return bCompatibility; }

    ComponentVector_t& getComponentVector( void )  { return ComponentVector; }

	SbMethod* GetCaller( sal_uInt16 );
	SbModule* GetActiveModule();
	SbxArray* GetLocals( SbMethod* );

	SbiIoSystem* GetIoSystem() { return pIosys; }
	SbiDdeControl* GetDdeControl() { return pDdeCtrl; }
    StarBASIC* GetBasic( void ) { return pBasic; }
	SbiDllMgr* GetDllMgr();
	SbiRTLData* GetRTLData() const { return (SbiRTLData*)&aRTLData; }

	SvNumberFormatter* GetNumberFormatter();
	sal_uInt32 GetStdDateIdx() const { return nStdDateIdx; }
	sal_uInt32 GetStdTimeIdx() const { return nStdTimeIdx; }
	sal_uInt32 GetStdDateTimeIdx() const { return nStdDateTimeIdx; }

	// #39629# NumberFormatter auch statisch anbieten
	static void PrepareNumberFormatter( SvNumberFormatter*& rpNumberFormatter,
		sal_uInt32 &rnStdDateIdx, sal_uInt32 &rnStdTimeIdx, sal_uInt32 &rnStdDateTimeIdx,
        LanguageType* peFormatterLangType=NULL, DateFormat* peFormatterDateFormat=NULL );
};

SbiIoSystem* SbGetIoSystem();		// das aktuelle I/O-System


// Verkettbare Items, um Referenzen temporaer zu halten
struct RefSaveItem
{
	SbxVariableRef xRef;
	RefSaveItem* pNext;

	RefSaveItem() { pNext = NULL; }
};


// Eine Instanz dieser Klasse wird fuer jedes ausgefuehrte Unterprogramm
// aufgesetzt. Diese Instanz ist das Herz der BASIC-Maschine und enthaelt
// nur lokale Daten.

class SbiRuntime
{
	friend void SbRtl_CallByName( StarBASIC* pBasic, SbxArray& rPar, sal_Bool bWrite );

	typedef void( SbiRuntime::*pStep0 )();
	typedef void( SbiRuntime::*pStep1 )( sal_uInt32 nOp1 );
	typedef void( SbiRuntime::*pStep2 )( sal_uInt32 nOp1, sal_uInt32 nOp2 );
	static pStep0 aStep0[];         // Opcode-Tabelle Gruppe 0
	static pStep1 aStep1[];         // Opcode-Tabelle Gruppe 1
	static pStep2 aStep2[];         // Opcode-Tabelle Gruppe 2

	StarBASIC&    rBasic; 			// StarBASIC-Instanz
	SbiInstance*   pInst;			// aktiver Thread
	SbModule*	  pMod;				// aktuelles Modul
	SbMethod* 	  pMeth;			// Methoden-Instanz
	SbiIoSystem*   pIosys;			// I/O-System
	const SbiImage* pImg;           // Code-Image
	SbxArrayRef   refExprStk;       // expression stack
	SbxArrayRef   refCaseStk;       // CASE expression stack
	SbxArrayRef   refRedimpArray;   // Array saved to use for REDIM PRESERVE
	SbxVariableRef xDummyVar;		// Ersatz fuer nicht gefundene Variablen
	SbiArgvStack*  pArgvStk;		// ARGV-Stack
	SbiGosubStack* pGosubStk;		// GOSUB stack
	SbiForStack*   pForStk;			// FOR/NEXT-Stack
	sal_uInt16        nExprLvl;			// Tiefe des Expr-Stacks
	sal_uInt16        nGosubLvl;        // Zum Vermeiden von Tot-Rekursionen
	sal_uInt16        nForLvl;	        // #118235: Maintain for level
	const sal_uInt8*   pCode;            // aktueller Code-Pointer
	const sal_uInt8*   pStmnt;           // Beginn des lezten Statements
	const sal_uInt8*   pError;           // Adresse des aktuellen Error-Handlers
	const sal_uInt8*   pRestart;         // Restart-Adresse
	const sal_uInt8*   pErrCode;         // Restart-Adresse RESUME NEXT
	const sal_uInt8*   pErrStmnt;        // Restart-Adresse RESUMT 0
	String		  aLibName;			// Lib-Name fuer Declare-Call
	SbxArrayRef   refParams;        // aktuelle Prozedur-Parameter
	SbxArrayRef   refLocals;        // lokale Variable
	SbxArrayRef   refArgv;          // aktueller Argv
	// AB, 28.3.2000 #74254, Ein refSaveObj reicht nicht! Neu: pRefSaveList (s.u.)
	//SbxVariableRef refSaveObj;      // #56368 Bei StepElem Referenz sichern
	short         nArgc;            // aktueller Argc
	sal_Bool          bRun;             // sal_True: Programm ist aktiv
	sal_Bool          bError;           // sal_True: Fehler behandeln
	sal_Bool          bInError;         // sal_True: in einem Fehler-Handler
	sal_Bool          bBlocked;         // sal_True: blocked by next call level, #i48868
	sal_Bool          bVBAEnabled;
	sal_uInt16		  nFlags;			// Debugging-Flags
	SbError		  nError;           // letzter Fehler
	sal_uInt16		  nOps;				// Opcode-Zaehler
	sal_uInt32    m_nLastTime;

	RefSaveItem*  pRefSaveList;     // #74254 Temporaere Referenzen sichern
	RefSaveItem*  pItemStoreList;   // Unbenutzte Items aufbewahren
	void SaveRef( SbxVariable* pVar )
	{
		RefSaveItem* pItem = pItemStoreList;
		if( pItem )
			pItemStoreList = pItem->pNext;
		else
			pItem = new RefSaveItem();
		pItem->pNext = pRefSaveList;
		pItem->xRef = pVar;
		pRefSaveList = pItem;
	}
	void ClearRefs( void )
	{
		while( pRefSaveList )
		{
			RefSaveItem* pToClearItem = pRefSaveList;
			pRefSaveList = pToClearItem->pNext;
			pToClearItem->xRef = NULL;
			pToClearItem->pNext = pItemStoreList;
			pItemStoreList = pToClearItem;
		}
	}

	SbxVariable* FindElement
	( SbxObject* pObj, sal_uInt32 nOp1, sal_uInt32 nOp2, SbError, sal_Bool bLocal, sal_Bool bStatic = sal_False );
	void SetupArgs( SbxVariable*, sal_uInt32 );
	SbxVariable* CheckArray( SbxVariable* );

	void PushVar( SbxVariable* );   // Variable push
	SbxVariableRef PopVar();          // Variable pop
	SbxVariable* GetTOS( short=0 ); // Variable vom TOS holen
	void TOSMakeTemp();				// TOS in temp. Variable wandeln
	sal_Bool ClearExprStack();          // Expr-Stack freigeben

	void PushGosub( const sal_uInt8* );  // GOSUB-Element push
	void PopGosub();                // GOSUB-Element pop
	void ClearGosubStack();         // GOSUB-Stack freigeben

	void PushArgv();                // Argv-Element push
	void PopArgv();                 // Argv-Element pop
	void ClearArgvStack();          // Argv-Stack freigeben

	void PushFor();                 // For-Element push
	void PushForEach();             // For-Each-Element push
	void PopFor();                  // For-Element pop
	void ClearForStack();           // For-Stack freigeben

	void StepArith( SbxOperator );  // arithmetische Verknuepfungen
	void StepUnary( SbxOperator );  // unaere Verknuepfungen
	void StepCompare( SbxOperator );// Vergleiche

	void SetParameters( SbxArray* );// Parameter uebernehmen

	// MUSS NOCH IMPLEMENTIERT WERDEN
	void DllCall( const String&, const String&, SbxArray*, SbxDataType, sal_Bool );

	// #56204 DIM-Funktionalitaet in Hilfsmethode auslagern (step0.cxx)
	void DimImpl( SbxVariableRef refVar );

	// #115829
	bool implIsClass( SbxObject* pObj, const String& aClass );

	void StepSETCLASS_impl( sal_uInt32 nOp1, bool bHandleDflt = false );

	// Die nachfolgenden Routinen werden vom Single Stepper
	// gerufen und implementieren die einzelnen Opcodes
	void StepNOP(),     StepEXP(),      StepMUL(),      StepDIV();
	void StepMOD(),     StepPLUS(),     StepMINUS(),    StepNEG();
	void StepEQ(),      StepNE(),       StepLT(),       StepGT();
	void StepLE(),      StepGE(),       StepIDIV(),     StepAND();
	void StepOR(),      StepXOR(),      StepEQV(),      StepIMP();
	void StepNOT(),     StepCAT(),      StepLIKE(),     StepIS();
	void StepCLONE(),   StepOLDBASED(), StepARGC();
	void StepARGV(),    StepINPUT(),	StepLINPUT(),	StepSTOP();
	void StepGET(),		StepSET(),	StepVBASET(), 	StepPUT(),		StepPUTC();
	void StepSET_Impl( SbxVariableRef& refVal, SbxVariableRef& refVar, bool bDefaultHandling = false );
	void StepDIM(),     StepREDIM(),	StepREDIMP(),	StepERASE();
	void StepINITFOR(), StepNEXT(),		StepERROR(),	StepINITFOREACH();
	void StepCASE(),	StepENDCASE(),  StepSTDERROR();
	void StepNOERROR(), StepCHANNEL(),  StepCHANNEL0(),	StepPRINT();
	void StepPRINTF(),	StepWRITE(),    StepRENAME(),   StepPROMPT();
	void StepRESTART(), StepEMPTY(),    StepLEAVE();
	void StepLSET(),	StepRSET(),		StepREDIMP_ERASE(), 	StepERASE_CLEAR();
	void StepARRAYACCESS(), StepBYVAL();
	// Alle Opcodes mit einem Operanden
	void StepLOADNC( sal_uInt32 ),  StepLOADSC( sal_uInt32 ),   StepLOADI( sal_uInt32 );
	void StepARGN( sal_uInt32 ),	StepBASED( sal_uInt32 ),	StepPAD( sal_uInt32 );
	void StepJUMP( sal_uInt32 ),    StepJUMPT( sal_uInt32 );
	void StepJUMPF( sal_uInt32 ),   StepONJUMP( sal_uInt32 );
	void StepGOSUB( sal_uInt32 ),   StepRETURN( sal_uInt32 );
	void StepTESTFOR( sal_uInt32 ), StepCASETO( sal_uInt32 ),   StepERRHDL( sal_uInt32 );
	void StepRESUME( sal_uInt32 ),  StepSETCLASS( sal_uInt32 ),	StepVBASETCLASS( sal_uInt32 ),	StepTESTCLASS( sal_uInt32 ), StepLIB( sal_uInt32 );
	bool checkClass_Impl( const SbxVariableRef& refVal, const String& aClass, bool bRaiseErrors, bool bDefault = true );
	void StepCLOSE( sal_uInt32 ),   StepPRCHAR( sal_uInt32 ),   StepARGTYP( sal_uInt32 );
	// Alle Opcodes mit zwei Operanden
	void StepRTL( sal_uInt32, sal_uInt32 ),		StepPUBLIC( sal_uInt32, sal_uInt32 ),	StepPUBLIC_P( sal_uInt32, sal_uInt32 );
	void StepPUBLIC_Impl( sal_uInt32, sal_uInt32, bool bUsedForClassModule );
	void StepFIND_Impl( SbxObject* pObj, sal_uInt32 nOp1, sal_uInt32 nOp2, SbError, sal_Bool bLocal, sal_Bool bStatic = sal_False );
	void StepFIND( sal_uInt32, sal_uInt32 ),    StepELEM( sal_uInt32, sal_uInt32 );
	void StepGLOBAL( sal_uInt32, sal_uInt32 ),  StepLOCAL( sal_uInt32, sal_uInt32 );
	void StepPARAM( sal_uInt32, sal_uInt32), 	StepCREATE( sal_uInt32, sal_uInt32 );
	void StepCALL( sal_uInt32, sal_uInt32 ),    StepCALLC( sal_uInt32, sal_uInt32 );
	void StepCASEIS( sal_uInt32, sal_uInt32 ),  StepSTMNT( sal_uInt32, sal_uInt32 );
	SbxVariable* StepSTATIC_Impl( String& aName, SbxDataType& t );
	void StepOPEN( sal_uInt32, sal_uInt32 ),	StepSTATIC( sal_uInt32, sal_uInt32 );
	void StepTCREATE(sal_uInt32,sal_uInt32),	StepDCREATE(sal_uInt32,sal_uInt32);
	void StepGLOBAL_P( sal_uInt32, sal_uInt32 ),StepFIND_G( sal_uInt32, sal_uInt32 );
	void StepDCREATE_REDIMP(sal_uInt32,sal_uInt32), StepDCREATE_IMPL(sal_uInt32,sal_uInt32);
	void StepFIND_CM( sal_uInt32, sal_uInt32 );
	void StepFIND_STATIC( sal_uInt32, sal_uInt32 );
	void implHandleSbxFlags( SbxVariable* pVar, SbxDataType t, sal_uInt32 nOp2 );
public:
	void          SetVBAEnabled( bool bEnabled );
	sal_uInt16		GetImageFlag( sal_uInt16 n ) const;
	sal_uInt16		GetBase();
	xub_StrLen  nLine,nCol1,nCol2;	// aktuelle Zeile, Spaltenbereich
	SbiRuntime* pNext;               // Stack-Chain

	SbiRuntime( SbModule*, SbMethod*, sal_uInt32 );
   ~SbiRuntime();
	void Error( SbError, bool bVBATranslationAlreadyDone = false );		// Fehler setzen, falls != 0
	void Error( SbError, const String& );       // Fehler setzen, falls != 0
	void FatalError( SbError );		            // Fehlerbehandlung=Standard, Fehler setzen
	void FatalError( SbError, const String& );  // Fehlerbehandlung=Standard, Fehler setzen
	static sal_Int32 translateErrorToVba( SbError nError, String& rMsg );
	void DumpPCode();
	sal_Bool Step();                    // Einzelschritt (ein Opcode)
	void Stop()     	   { bRun = sal_False;   }
    sal_Bool IsRun()           { return bRun;    }
	void block( void )	   { bBlocked = sal_True; }
	void unblock( void )   { bBlocked = sal_False; }
	SbMethod* GetMethod()  { return pMeth;   }
	SbModule* GetModule()  { return pMod;    }
	sal_uInt16 GetDebugFlags() { return nFlags;  }
	void SetDebugFlags( sal_uInt16 nFl ) { nFlags = nFl;  }
	SbMethod* GetCaller();
	SbxArray* GetLocals();
	SbxArray* GetParams();

	SbiForStack* FindForStackItemForCollection( class BasicCollection* pCollection );

	SbxBase* FindElementExtern( const String& rName );
	static bool isVBAEnabled();

};

inline void checkArithmeticOverflow( double d )
{
    if( !::rtl::math::isFinite( d ) )
    	StarBASIC::Error( SbERR_MATH_OVERFLOW );
}

inline void checkArithmeticOverflow( SbxVariable* pVar )
{
    if( pVar->GetType() == SbxDOUBLE )
    {
        double d = pVar->GetDouble();
        checkArithmeticOverflow( d );
    }
}

// Hilfsfunktion, um aktives Basic zu finden
StarBASIC* GetCurrentBasic( StarBASIC* pRTBasic );

// Get information if security restrictions should be
// used (File IO based on UCB, no RTL function SHELL
// no DDE functionality, no DLLCALL) in basic because
// of portal "virtual" users (portal user != UNIX user)
// (Implemented in iosys.cxx)
sal_Bool needSecurityRestrictions( void );

// Returns sal_True if UNO is available, otherwise the old
// file system implementation has to be used
// (Implemented in iosys.cxx)
sal_Bool hasUno( void );

// Converts possibly relative paths to absolute paths
// according to the setting done by ChDir/ChDrive
// (Implemented in methods.cxx)
String getFullPath( const String& aRelPath );

// Sets (virtual) current path for UCB file access
void implChDir( const String& aDir );

// Sets (virtual) current drive for UCB file access
void implChDrive( const String& aDrive );

// Returns (virtual) current path for UCB file access
String implGetCurDir( void );

// Implementation of StepRENAME with UCB
// (Implemented in methods.cxx, so step0.cxx
// has not to be infected with UNO)
void implStepRenameUCB( const String& aSource, const String& aDest );

//*** OSL file access ***
// #87427 OSL need File URLs, so map to getFullPath
inline String getFullPathUNC( const String& aRelPath )
{
    return getFullPath( aRelPath );
}
void implStepRenameOSL( const String& aSource, const String& aDest );
bool IsBaseIndexOne();

#endif