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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_FORMULA_TOKENARRAY_HXX
#define INCLUDED_FORMULA_TOKENARRAY_HXX
#include <com/sun/star/sheet/FormulaToken.hpp>
#include <formula/token.hxx>
#include <formula/ExternalReferenceHelper.hxx>
#include <limits.h>
namespace formula
{
// RecalcMode access only via TokenArray SetRecalcMode / IsRecalcMode...
typedef sal_uInt8 ScRecalcMode;
// Only one of the exclusive bits can be set,
// handled by TokenArray SetRecalcMode... methods
#define RECALCMODE_NORMAL 0x01 // exclusive
#define RECALCMODE_ALWAYS 0x02 // exclusive, always
#define RECALCMODE_ONLOAD 0x04 // exclusive, always after load
#define RECALCMODE_ONLOAD_ONCE 0x08 // exclusive, once after load
#define RECALCMODE_FORCED 0x10 // combined, also if cell isn't visible
#define RECALCMODE_ONREFMOVE 0x20 // combined, if reference was moved
#define RECALCMODE_EMASK 0x0F // mask of exclusive bits
// If new bits are to be defined, AddRecalcMode has to be adjusted!
class FormulaMissingContext;
class FORMULA_DLLPUBLIC MissingConvention
{
bool mbODFF; /// TRUE: ODFF, FALSE: PODF
public:
explicit MissingConvention( bool bODFF ) : mbODFF(bODFF) {}
// Implementation and usage only in token.cxx
inline bool isRewriteNeeded( OpCode eOp ) const;
inline bool isODFF() const { return mbODFF; }
};
class FORMULA_DLLPUBLIC FormulaTokenArray
{
friend class FormulaCompiler;
friend class FormulaTokenIterator;
friend class FormulaMissingContext;
protected:
FormulaToken** pCode; // Token code array
FormulaToken** pRPN; // RPN array
sal_uInt16 nLen; // Length of token array
sal_uInt16 nRPN; // Length of RPN array
sal_uInt16 nIndex; // Current step index
sal_uInt16 nError; // Error code
short nRefs; // Count of cell references
ScRecalcMode nMode; // Flags to indicate when to recalc this code
bool bHyperLink; // If HYPERLINK() occurs in the formula.
protected:
void Assign( const FormulaTokenArray& );
/// Also used by the compiler. The token MUST had been allocated with new!
FormulaToken* Add( FormulaToken* );
inline void SetCombinedBitsRecalcMode( ScRecalcMode nBits )
{ nMode |= (nBits & ~RECALCMODE_EMASK); }
inline ScRecalcMode GetCombinedBitsRecalcMode() const
{ return nMode & ~RECALCMODE_EMASK; }
/** Exclusive bits already set in nMode are
zero'ed, nBits may contain combined bits, but
only one exclusive bit may be set! */
inline void SetMaskedRecalcMode( ScRecalcMode nBits )
{ nMode = GetCombinedBitsRecalcMode() | nBits; }
public:
FormulaTokenArray();
/// Assignment with references to FormulaToken entries (not copied!)
FormulaTokenArray( const FormulaTokenArray& );
virtual ~FormulaTokenArray();
FormulaTokenArray* Clone() const; /// True copy!
void Clear();
void DelRPN();
FormulaToken* First() { nIndex = 0; return Next(); }
FormulaToken* Next();
FormulaToken* FirstNoSpaces() { nIndex = 0; return NextNoSpaces(); }
FormulaToken* NextNoSpaces();
FormulaToken* GetNextName();
FormulaToken* GetNextReference();
FormulaToken* GetNextReferenceRPN();
FormulaToken* GetNextReferenceOrName();
FormulaToken* GetNextColRowName();
FormulaToken* GetNextOpCodeRPN( OpCode );
/// Peek at nIdx-1 if not out of bounds, decrements nIdx if successful. Returns NULL if not.
FormulaToken* PeekPrev( sal_uInt16 & nIdx );
FormulaToken* PeekNext();
FormulaToken* PeekPrevNoSpaces(); /// Only after Reset/First/Next/Last/Prev!
FormulaToken* PeekNextNoSpaces(); /// Only after Reset/First/Next/Last/Prev!
FormulaToken* FirstRPN() { nIndex = 0; return NextRPN(); }
FormulaToken* NextRPN();
FormulaToken* LastRPN() { nIndex = nRPN; return PrevRPN(); }
FormulaToken* PrevRPN();
bool HasReferences() const;
bool HasExternalRef() const;
bool HasOpCode( OpCode ) const;
bool HasOpCodeRPN( OpCode ) const;
/// Token of type svIndex or opcode ocColRowName
bool HasNameOrColRowName() const;
FormulaToken** GetArray() const { return pCode; }
FormulaToken** GetCode() const { return pRPN; }
sal_uInt16 GetLen() const { return nLen; }
sal_uInt16 GetCodeLen() const { return nRPN; }
void Reset() { nIndex = 0; }
sal_uInt16 GetCodeError() const { return nError; }
void SetCodeError( sal_uInt16 n ) { nError = n; }
short GetRefs() const { return nRefs; }
void IncrementRefs() { ++nRefs; }
void SetHyperLink( bool bVal ) { bHyperLink = bVal; }
bool IsHyperLink() const { return bHyperLink; }
inline ScRecalcMode GetRecalcMode() const { return nMode; }
/** Bits aren't set directly but validated and
maybe handled according to priority if more
than one exclusive bit was set. */
void AddRecalcMode( ScRecalcMode nBits );
inline void ClearRecalcMode() { nMode = RECALCMODE_NORMAL; }
inline void SetExclusiveRecalcModeNormal()
{ SetMaskedRecalcMode( RECALCMODE_NORMAL ); }
inline void SetExclusiveRecalcModeAlways()
{ SetMaskedRecalcMode( RECALCMODE_ALWAYS ); }
inline void SetExclusiveRecalcModeOnLoad()
{ SetMaskedRecalcMode( RECALCMODE_ONLOAD ); }
inline void SetExclusiveRecalcModeOnLoadOnce()
{ SetMaskedRecalcMode( RECALCMODE_ONLOAD_ONCE ); }
inline void SetRecalcModeForced()
{ nMode |= RECALCMODE_FORCED; }
inline void ClearRecalcModeForced()
{ nMode &= ~RECALCMODE_FORCED; }
inline void SetRecalcModeOnRefMove()
{ nMode |= RECALCMODE_ONREFMOVE; }
inline void ClearRecalcModeOnRefMove()
{ nMode &= ~RECALCMODE_ONREFMOVE; }
inline bool IsRecalcModeNormal() const
{ return (nMode & RECALCMODE_NORMAL) != 0; }
inline bool IsRecalcModeAlways() const
{ return (nMode & RECALCMODE_ALWAYS) != 0; }
inline bool IsRecalcModeOnLoad() const
{ return (nMode & RECALCMODE_ONLOAD) != 0; }
inline bool IsRecalcModeOnLoadOnce() const
{ return (nMode & RECALCMODE_ONLOAD_ONCE) != 0; }
inline bool IsRecalcModeForced() const
{ return (nMode & RECALCMODE_FORCED) != 0; }
inline bool IsRecalcModeOnRefMove() const
{ return (nMode & RECALCMODE_ONREFMOVE) != 0; }
/** Get OpCode of the most outer function */
inline OpCode GetOuterFuncOpCode();
/** Operators +,-,*,/,^,&,=,<>,<,>,<=,>=
with DoubleRef in Formula? */
bool HasMatrixDoubleRefOps();
virtual FormulaToken* AddOpCode(OpCode e);
/** Adds the single token to array.
Derived classes must overload it when they want to support derived classes from FormulaToken.
@return true when an error occurs
*/
virtual bool AddFormulaToken(const com::sun::star::sheet::FormulaToken& _aToken, ExternalReferenceHelper* _pRef = NULL);
/** fill the array with the tokens from the sequence.
It calls AddFormulaToken for each token in the list.
@param _aSequence the token to add
@return true when an error occurs
*/
bool Fill(const com::sun::star::uno::Sequence< com::sun::star::sheet::FormulaToken >& _aSequence, ExternalReferenceHelper* _pRef = NULL);
/**
* Do some checking based on the individual tokens. For now, we use this
* only to check whether we can vectorize the token array.
*/
virtual void CheckToken( const FormulaToken& t );
FormulaToken* AddToken( const FormulaToken& );
FormulaToken* AddString( const OUString& rStr );
FormulaToken* AddDouble( double fVal );
FormulaToken* AddExternal( const sal_Unicode* pStr );
/** Xcl import may play dirty tricks with OpCode!=ocExternal.
Others don't use! */
FormulaToken* AddExternal( const OUString& rStr, OpCode eOp = ocExternal );
FormulaToken* AddBad( const OUString& rStr ); /// ocBad with OUString
FormulaToken* AddStringXML( const OUString& rStr ); /// ocStringXML with OUString, temporary during import
virtual FormulaToken* MergeArray( );
/// Assignment with references to FormulaToken entries (not copied!)
FormulaTokenArray& operator=( const FormulaTokenArray& );
/** Determines if this formula needs any changes to convert it to something
previous versions of OOo could consume (Plain Old Formula). */
bool NeedsPofRewrite(const MissingConvention & rConv);
/** Rewrites to Plain Old Formula, substituting missing parameters. The
FormulaTokenArray* returned is new'ed. */
FormulaTokenArray* RewriteMissingToPof(const MissingConvention & rConv);
/** Determines if this formula may be followed by a reference. */
bool MayReferenceFollow();
};
inline OpCode FormulaTokenArray::GetOuterFuncOpCode()
{
if ( pRPN && nRPN )
return pRPN[nRPN-1]->GetOpCode();
return ocNone;
}
struct ImpTokenIterator
{
ImpTokenIterator* pNext;
const FormulaTokenArray* pArr;
short nPC;
short nStop;
DECL_FIXEDMEMPOOL_NEWDEL( ImpTokenIterator );
};
class FORMULA_DLLPUBLIC FormulaTokenIterator
{
ImpTokenIterator* pCur;
public:
FormulaTokenIterator( const FormulaTokenArray& );
~FormulaTokenIterator();
void Reset();
const FormulaToken* Next();
const FormulaToken* PeekNextOperator();
bool IsEndOfPath() const; /// if a jump or subroutine path is done
bool HasStacked() const { return pCur->pNext != 0; }
short GetPC() const { return pCur->nPC; }
/** Jump or subroutine call.
Program counter values will be incremented before code is executed =>
positions are to be passed with -1 offset.
@param nStart
Start on code at position nStart+1 (yes, pass with offset -1)
@param nNext
After subroutine continue with instruction at position nNext+1
@param nStop
Stop before reaching code at position nStop. If not specified the
default is to either run the entire code, or to stop if an ocSep or
ocClose is encountered, which are only present in ocIf or ocChose
jumps.
*/
void Jump( short nStart, short nNext, short nStop = SHRT_MAX );
void Push( const FormulaTokenArray* );
void Pop();
private:
const FormulaToken* GetNonEndOfPathToken( short nIdx ) const;
};
} // formula
#endif // INCLUDED_FORMULA_TOKENARRAY_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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