xref: /trunk/main/autodoc/source/parser_i/tokens/tkpstam2.cxx (revision 78bc99aafea97f4987aed12e674c2d2f1166dd91)

/**************************************************************
 *
 * 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
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
 *************************************************************/

#include <precomp.h>
#include <tokens/tkpstam2.hxx>

// NOT FULLY DECLARED SERVICES
#include <tokens/stmstar2.hxx>
#include <tools/tkpchars.hxx>


const intt  C_nStatuslistResizeValue = 32;
const intt  C_nTopStatus = 0;

StateMachin2::StateMachin2( intt            in_nStatusSize,
                            intt            in_nInitial_StatusListSize )
    :   pStati(new StmStatu2*[in_nInitial_StatusListSize]),
        nCurrentStatus(C_nTopStatus),
        nPeekedStatus(C_nTopStatus),
        nStatusSize(in_nStatusSize),
        nNrofStati(0),
        nStatiSpace(in_nInitial_StatusListSize)
{
    csv_assert(in_nStatusSize > 0);
    csv_assert(in_nInitial_StatusListSize > 0);

    memset(pStati, 0, sizeof(StmStatu2*) * nStatiSpace);
}

intt
StateMachin2::AddStatus(StmStatu2 * let_dpStatus)
{
    if (nNrofStati == nStatiSpace)
    {
        ResizeStati();
    }
    pStati[nNrofStati] = let_dpStatus;
    return nNrofStati++;
}

void
StateMachin2::AddToken( const char *        in_sToken,
                        UINT16              in_nTokenId,
                        const INT16 *       in_aBranches,
                        INT16               in_nBoundsStatus )
{
    if (csv::no_str(in_sToken))
        return;

    // Durch existierende Stati durchhangeln:
    nCurrentStatus = 0;
    nPeekedStatus = 0;

    for ( const char * pChar = in_sToken;
          *pChar != NULCH;
          ++pChar )
    {
        Peek(*pChar);
        StmStatu2 & rPst = Status(nPeekedStatus);
        if ( rPst.IsADefault() OR rPst.AsBounds() != 0 )
        {
            nPeekedStatus = AddStatus( new StmArrayStatu2(nStatusSize, in_aBranches, 0, false ) );
            CurrentStatus().SetBranch( *pChar, nPeekedStatus );
        }
        nCurrentStatus = nPeekedStatus;
    }   // end for
    StmArrayStatu2 & rLastStatus = CurrentStatus();
    rLastStatus.SetTokenId(in_nTokenId);
    for (intt i = 0; i < nStatusSize; i++)
    {
        if (Status(rLastStatus.NextBy(i)).AsBounds() != 0)
            rLastStatus.SetBranch(i,in_nBoundsStatus);
    }   // end for
}

StateMachin2::~StateMachin2()
{
    for (intt i = 0; i < nNrofStati; i++)
    {
        delete pStati[i];
    }
    delete [] pStati;
}

StmBoundsStatu2 &
StateMachin2::GetCharChain( UINT16 &           o_nTokenId,
                            CharacterSource &  io_rText )
{
    nCurrentStatus = C_nTopStatus;
    Peek(io_rText.CurChar());
    while (BoundsStatus() == 0)
    {
        nCurrentStatus = nPeekedStatus;
        Peek(io_rText.MoveOn());
    }
    o_nTokenId = CurrentStatus().TokenId();

    return *BoundsStatus();
}

void
StateMachin2::ResizeStati()
{
    intt nNewSize = nStatiSpace + C_nStatuslistResizeValue;
    intt i = 0;
    StatusList pNewStati = new StmStatu2*[nNewSize];

    for ( ; i < nNrofStati; i++)
    {
        pNewStati[i] = pStati[i];
    }
    memset( pNewStati+i,
            0,
            (nNewSize-i) * sizeof(StmStatu2*) );

    delete [] pStati;
    pStati = pNewStati;
    nStatiSpace = nNewSize;
}

StmStatu2 &
StateMachin2::Status(intt in_nStatusNr) const
{
    csv_assert( csv::in_range(intt(0), in_nStatusNr, intt(nNrofStati)) );
    return *pStati[in_nStatusNr];
}

StmArrayStatu2 &
StateMachin2::CurrentStatus() const
{
    StmArrayStatu2 * pCurSt = Status(nCurrentStatus).AsArray();
    if (pCurSt == 0)
    {
        csv_assert(false);
    }
    return *pCurSt;
}

StmBoundsStatu2 *
StateMachin2::BoundsStatus() const
{
    return Status(nPeekedStatus).AsBounds();
}

void
StateMachin2::Peek(intt in_nBranch)
{
    StmArrayStatu2 & rSt = CurrentStatus();
    nPeekedStatus = rSt.NextBy(in_nBranch);
}