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/* -*- 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 ADC_CPP_CALLF_HXX
#define ADC_CPP_CALLF_HXX
// USED SERVICES
/** This represents a function to be called, if a specific kind of token
arrives in the semantic parser.
@descr This class is only to be used as member of PeStatus<PE>.
@template PE
The owning ParseEnvironment.
@see PeStatus, ParseEnvironment
*/
template <class PE>
class CallFunction
{
public:
typedef void (PE::*F_Tok)(const char *);
CallFunction(
F_Tok i_f2Call,
INT16 i_nTokType );
F_Tok GetF() const;
INT16 TokType() const;
private:
// DATA
F_Tok f2Call;
INT16 nTokType;
};
/** One state within a ParseEnvironment.
@template PE
The owning ParseEnvironment.
*/
template <class PE>
class PeStatus
{
public:
typedef typename CallFunction<PE>::F_Tok F_Tok;
PeStatus(
PE & i_rMyPE,
uintt i_nSize,
F_Tok * i_pFuncArray,
INT16 * i_pTokTypeArray,
F_Tok i_pDefault );
virtual ~PeStatus();
virtual void Call_Handler(
INT16 i_nTokTypeId,
const char * i_sTokenText ) const;
private:
bool CheckForCall(
uintt i_nPos,
INT16 i_nTokTypeId,
const char * i_sTokenText ) const;
PE * pMyPE;
std::vector< CallFunction<PE> >
aBranches;
F_Tok fDefault;
};
template <class PE>
class PeStatusArray
{
public:
typedef typename PE::E_State State;
PeStatusArray();
void InsertState(
State i_ePosition,
DYN PeStatus<PE> & let_drState );
~PeStatusArray();
const PeStatus<PE> &
operator[](
State i_ePosition ) const;
void SetCur(
State i_eCurState );
const PeStatus<PE> &
Cur() const;
private:
DYN PeStatus<PE> * aStati[PE::size_of_states];
State eState;
};
// IMPLEMENTATION
// CallFunction
template <class PE>
CallFunction<PE>::CallFunction( F_Tok i_f2Call,
INT16 i_nTokType )
: f2Call(i_f2Call),
nTokType(i_nTokType)
{
}
template <class PE>
inline typename CallFunction<PE>::F_Tok
CallFunction<PE>::GetF() const
{
return f2Call;
}
template <class PE>
inline INT16
CallFunction<PE>::TokType() const
{
return nTokType;
}
// PeStatus
template <class PE>
PeStatus<PE>::PeStatus( PE & i_rMyPE,
uintt i_nSize,
F_Tok * i_pFuncArray,
INT16 * i_pTokTypeArray,
F_Tok i_fDefault )
: pMyPE(&i_rMyPE),
fDefault(i_fDefault)
{
aBranches.reserve(i_nSize);
for ( uintt i = 0; i < i_nSize; ++i )
{
// csv_assert(i > 0 ? i_pTokTypeArray[i] > i_pTokTypeArray[i-1] : true);
aBranches.push_back( CallFunction<PE>( i_pFuncArray[i], i_pTokTypeArray[i]) );
} // end for
}
template <class PE>
PeStatus<PE>::~PeStatus()
{
}
template <class PE>
void
PeStatus<PE>::Call_Handler( INT16 i_nTokTypeId,
const char * i_sTokenText ) const
{
uintt nSize = aBranches.size();
uintt nPos = nSize / 2;
if ( i_nTokTypeId < aBranches[nPos].TokType() )
{
for ( --nPos; intt(nPos) >= 0; --nPos )
{
if (CheckForCall(nPos, i_nTokTypeId, i_sTokenText))
return;
}
}
else
{
for ( ; nPos < nSize; ++nPos )
{
if (CheckForCall(nPos, i_nTokTypeId, i_sTokenText))
return;
}
}
(pMyPE->*fDefault)(i_sTokenText);
}
template <class PE>
bool
PeStatus<PE>::CheckForCall( uintt i_nPos,
INT16 i_nTokTypeId,
const char * i_sTokenText ) const
{
if ( aBranches[i_nPos].TokType() == i_nTokTypeId )
{
(pMyPE->*aBranches[i_nPos].GetF())(i_sTokenText);
return true;
}
return false;
}
// PeStatusArray
template <class PE>
PeStatusArray<PE>::PeStatusArray()
: eState(PE::size_of_states)
{
memset(aStati, 0, sizeof aStati);
}
template <class PE>
void
PeStatusArray<PE>::InsertState( State i_ePosition,
DYN PeStatus<PE> & let_drState )
{
csv_assert(aStati[i_ePosition] == 0);
aStati[i_ePosition] = &let_drState;
}
template <class PE>
PeStatusArray<PE>::~PeStatusArray()
{
int i_max = PE::size_of_states;
for (int i = 0; i < i_max; i++)
{
delete aStati[i];
} // end for
}
template <class PE>
inline const PeStatus<PE> &
PeStatusArray<PE>::operator[]( State i_ePosition ) const
{
csv_assert( uintt(i_ePosition) < PE::size_of_states );
csv_assert( aStati[i_ePosition] != 0 );
return *aStati[i_ePosition];
}
template <class PE>
inline void
PeStatusArray<PE>::SetCur( State i_eCurState )
{
eState = i_eCurState;
}
template <class PE>
const PeStatus<PE> &
PeStatusArray<PE>::Cur() const
{
return (*this)[eState];
}
#define SEMPARSE_CREATE_STATUS(penv, state, default_function) \
pStati->InsertState( state, \
*new PeStatus<penv>( \
*this, \
sizeof( stateT_##state ) / sizeof (INT16), \
stateF_##state, \
stateT_##state, \
&penv::default_function ) )
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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