162 lines
4.5 KiB
C++
162 lines
4.5 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#include <precomp.h>
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#include <tools/tkpchars.hxx>
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// NOT FULLY DECLARED SERVICES
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#include <cosv/bstream.hxx>
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#include <cosv/x.hxx>
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CharacterSource::CharacterSource()
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: dpSource(new char[2]),
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nSourceSize(0),
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nCurPos(0),
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nLastCut(0),
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nLastTokenStart(0),
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cCharAtLastCut(0)
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{
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dpSource[nSourceSize] = NULCH;
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dpSource[nSourceSize+1] = NULCH;
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}
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CharacterSource::~CharacterSource()
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{
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delete [] dpSource;
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}
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void
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CharacterSource::LoadText(csv::bstream & io_rSource)
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{
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if (dpSource != 0)
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delete [] dpSource;
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io_rSource.seek(0, csv::end);
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nSourceSize = intt(io_rSource.position());
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io_rSource.seek(0);
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dpSource = new char[nSourceSize+1];
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intt nCount = (intt) io_rSource.read(dpSource,nSourceSize);
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if (nCount != nSourceSize)
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throw csv::X_Default("IO-Error: Could not load file completely.");
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dpSource[nSourceSize] = NULCH;
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BeginSource();
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}
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/// KORR_FUTURE: So far, this works only when tokens do not cross inserted text boundaries.
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void
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CharacterSource::InsertTextAtCurPos( const char * i_sText2Insert )
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{
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if ( !i_sText2Insert || !i_sText2Insert[0] )
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return;
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aSourcesStack.push( S_SourceState(
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dpSource,
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nSourceSize,
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nCurPos,
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nLastCut,
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nLastTokenStart,
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cCharAtLastCut ) );
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nSourceSize = strlen(i_sText2Insert);
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dpSource = new char[nSourceSize+1];
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strcpy( dpSource, i_sText2Insert); // SAFE STRCPY (#100211# - checked)
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BeginSource();
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}
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const char *
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CharacterSource::CutToken()
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{
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dpSource[nLastCut] = cCharAtLastCut;
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nLastTokenStart = nLastCut;
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nLastCut = CurPos();
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cCharAtLastCut = dpSource[nLastCut];
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dpSource[nLastCut] = NULCH;
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return &dpSource[nLastTokenStart];
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}
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void
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CharacterSource::BeginSource()
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{
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nCurPos = 0;
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nLastCut = 0;
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nLastTokenStart = 0;
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cCharAtLastCut = dpSource[nLastCut];
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dpSource[nLastCut] = NULCH;
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}
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// KORR_FUTURE: So far, this works only when tokens do not cross inserted text boundaries.
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char
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CharacterSource::MoveOn_OverStack()
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{
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while ( aSourcesStack.size() > 0 AND nCurPos >= nSourceSize-1 )
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{
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S_SourceState & aState = aSourcesStack.top();
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delete [] dpSource;
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dpSource = aState.dpSource;
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nSourceSize = aState.nSourceSize;
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nCurPos = aState.nCurPos;
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nLastCut = aState.nLastCut;
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nLastTokenStart = aState.nLastTokenStart;
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cCharAtLastCut = aState.cCharAtLastCut;
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aSourcesStack.pop();
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}
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if ( nLastCut < nCurPos )
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CutToken();
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return CurChar();
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}
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CharacterSource::
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S_SourceState::S_SourceState( DYN char * dpSource_,
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intt nSourceSize_,
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intt nCurPos_,
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intt nLastCut_,
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intt nLastTokenStart_,
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char cCharAtLastCut_ )
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: dpSource(dpSource_),
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nSourceSize(nSourceSize_),
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nCurPos(nCurPos_),
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nLastCut(nLastCut_),
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nLastTokenStart(nLastTokenStart_),
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cCharAtLastCut(cCharAtLastCut_)
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{
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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