mirror of
https://github.com/ONLYOFFICE/core.git
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317 lines
9.4 KiB
C++
317 lines
9.4 KiB
C++
/*
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* (c) Copyright Ascensio System SIA 2010-2016
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*
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* This program is a free software product. You can redistribute it and/or
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* modify it under the terms of the GNU Affero General Public License (AGPL)
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* version 3 as published by the Free Software Foundation. In accordance with
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* Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
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* that Ascensio System SIA expressly excludes the warranty of non-infringement
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* of any third-party rights.
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*
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* This program is distributed WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For
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* details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
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*
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* You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia,
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* EU, LV-1021.
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*
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* The interactive user interfaces in modified source and object code versions
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* of the Program must display Appropriate Legal Notices, as required under
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* Section 5 of the GNU AGPL version 3.
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*
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* Pursuant to Section 7(b) of the License you must retain the original Product
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* logo when distributing the program. Pursuant to Section 7(e) we decline to
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* grant you any rights under trademark law for use of our trademarks.
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*
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* All the Product's GUI elements, including illustrations and icon sets, as
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* well as technical writing content are licensed under the terms of the
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* Creative Commons Attribution-ShareAlike 4.0 International. See the License
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* terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
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*
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*/
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#pragma once
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#include "RtfLex.h"
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#include "RtfProperty.h"
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#include "RtfDocument.h"
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class RtfConvertationManager;
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class RtfReader
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{
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public:
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class ReaderState;
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typedef boost::shared_ptr<ReaderState> ReaderStatePtr;
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RtfConvertationManager *m_convertationManager;
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class ReaderState
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{
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public:
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int m_nUD; // количество символов игнорируемых за юникодом
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RtfCharProperty m_oCharProp;
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RtfParagraphProperty m_oParagraphProp;
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RtfRowProperty m_oRowProperty;
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RtfCellProperty m_oCellProperty;
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RtfOldList m_oCurOldList;
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// RtfSectionProperty m_oSectionProp;
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ReaderStatePtr m_pSaveState;
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std::string m_sCurText;
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ReaderState()
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{
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m_nUD = 1;
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m_oCharProp.SetDefaultRtf();
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m_oParagraphProp.SetDefaultRtf();
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m_oRowProperty.SetDefaultRtf();
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m_oCellProperty.SetDefaultRtf();
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m_oCurOldList.SetDefault();
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}
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};
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//---------------------------------TextParser----------------------------------
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ReaderStatePtr m_oState;
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RtfSectionProperty m_oCurSectionProp;
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RtfLex m_oLex;
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int m_nFootnote; //толко для симовола chftn. основано на том что вложенных footnote быть не может
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int m_nDefFont;
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CString m_sTempFolder;
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RtfReader(RtfDocument& oDocument, std::wstring sFilename );
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~RtfReader()
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{
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}
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void PushState();
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void PopState();
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bool Load();
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long GetProgress()
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{
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return (long)( g_cdMaxPercent * m_oLex.GetProgress());
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}
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void Stop()
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{
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m_oLex.CloseSource();
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}
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private:
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RtfDocument& m_oDocument;
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std::wstring m_sFilename;
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};
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class RtfAbstractReader
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{
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public:
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NFileWriter::CBufferedFileWriter* m_oFileWriter;
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RtfAbstractReader()
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{
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m_bCanStartNewReader = false;
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m_bSkip = false;
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m_nSkipChars = 0;
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m_nCurGroups = 1;
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m_oFileWriter = NULL;
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m_bStopReader = false;
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m_bUseGlobalCodepage = false;
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}
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bool Parse(RtfDocument& oDocument, RtfReader& oReader )
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{
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NFileWriter::CBufferedFileWriter* poOldWriter = oReader.m_oLex.m_oFileWriter;
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oReader.m_oLex.m_oFileWriter = m_oFileWriter;
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int res = 0;
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m_oTok = oReader.m_oLex.NextCurToken();
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if( m_oTok.Type == m_oTok.None )
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m_oTok = oReader.m_oLex.NextToken();
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while (m_oTok.Type != RtfToken::Eof && false == m_bStopReader)
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{
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switch (m_oTok.Type)
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{
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case RtfToken::GroupStart:
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ExecuteTextInternal2(oDocument, oReader, m_oTok.Key, m_nSkipChars);
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PushState(oReader);
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break;
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case RtfToken::GroupEnd:
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ExecuteTextInternal2(oDocument, oReader, m_oTok.Key, m_nSkipChars);
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PopState(oDocument, oReader);
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break;
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case RtfToken::Keyword:
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ExecuteTextInternal2(oDocument, oReader, m_oTok.Key, m_nSkipChars);
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if( m_oTok.Key == "u")
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{
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ExecuteText( oDocument, oReader, ExecuteTextInternal( oDocument, oReader, m_oTok.Key, m_oTok.HasParameter, m_oTok.Parameter, m_nSkipChars) );
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break;
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}
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else
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{
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if( true == m_bSkip )
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{
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if( false == ExecuteCommand( oDocument, oReader, CString(m_oTok.Key.c_str()), m_oTok.HasParameter, m_oTok.Parameter ) )
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Skip( oDocument, oReader );
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m_bSkip = false;
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}
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else
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ExecuteCommand( oDocument, oReader, CString(m_oTok.Key.c_str()), m_oTok.HasParameter, m_oTok.Parameter );
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}
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if( true == m_bCanStartNewReader )
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m_bCanStartNewReader = false;
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break;
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case RtfToken::Control:
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if( m_oTok.Key == "42" )
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m_bSkip = true;
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if( m_oTok.Key == "39" && true == m_oTok.HasParameter )
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oReader.m_oState->m_sCurText += m_oTok.Parameter ;
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break;
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case RtfToken::Text:
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oReader.m_oState->m_sCurText += m_oTok.Key;
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break;
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}
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if( false == m_bStopReader)
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m_oTok = oReader.m_oLex.NextToken();
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}
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oReader.m_oLex.m_oFileWriter = poOldWriter;
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return true;
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}
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virtual void PushState(RtfReader& oReader)
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{
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oReader.PushState();
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m_nCurGroups++;
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m_bCanStartNewReader = true;
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}
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virtual void PopState(RtfDocument& oDocument, RtfReader& oReader)
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{
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if( m_nCurGroups > 0 )
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m_nCurGroups--;
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else
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;//ATLASSERT(false);
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if( m_nCurGroups == 0 )
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{
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m_bStopReader = true;
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ExitReader( oDocument, oReader );
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}
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oReader.PopState();
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if( m_nCurGroups == 0 )
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ExitReader2( oDocument, oReader );
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}
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bool StartSubReader( RtfAbstractReader& poNewReader, RtfDocument& oDocument, RtfReader& oReader )
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{
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if( true == m_bCanStartNewReader )
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{
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m_bCanStartNewReader = false;
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m_nCurGroups--;
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//poNewReader.PushState( oReader );
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poNewReader.m_bSkip = m_bSkip;
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return poNewReader.Parse(oDocument, oReader);
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}
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return false;
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}
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void Skip( RtfDocument& oDocument, RtfReader& oReader )
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{
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int cGroup = 1;
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while( cGroup >= 1 )
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{
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m_oTok = oReader.m_oLex.NextToken();
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if(m_oTok.Type == RtfToken::GroupStart)
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cGroup++;
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else if(m_oTok.Type == RtfToken::GroupEnd)
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cGroup--;
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else if(m_oTok.Type == RtfToken::Eof)
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break;
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}
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PopState( oDocument, oReader );
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}
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virtual bool ExecuteCommand( RtfDocument& oDocument, RtfReader& oReader, CString sKey, bool bHasPar, int nPar )
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{
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return true;
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}
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virtual void ExecuteText( RtfDocument& oDocument, RtfReader& oReader, CString oText )
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{
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}
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virtual void ExitReader( RtfDocument& oDocument, RtfReader& oReader )
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{
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}
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virtual void ExitReader2( RtfDocument& oDocument, RtfReader& oReader )
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{
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}
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/*static */CString ExecuteTextInternal( RtfDocument& oDocument, RtfReader& oReader, std::string & sKey, bool bHasPar, int nPar, int& nSkipChars)
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{
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CString sResult;
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if( "u" == sKey )
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{
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if( true == bHasPar )
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sResult.AppendChar( nPar );
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}
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else
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{
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std::string sCharString;
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if( "39" == sKey )
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{
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if( true == bHasPar )
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sCharString += (char)nPar ;
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}
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else
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sCharString = sKey;
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sResult = ExecuteTextInternalCodePage(sCharString, oDocument, oReader);
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}
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ExecuteTextInternalSkipChars(sResult, oReader, sKey, nSkipChars);
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return sResult;
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}
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virtual void ExecuteTextInternal2( RtfDocument& oDocument, RtfReader& oReader, std::string & sKey, int& nSkipChars)
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{
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if(oReader.m_oState->m_sCurText.length() > 0)
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{
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CString sResult = ExecuteTextInternalCodePage(oReader.m_oState->m_sCurText, oDocument, oReader);
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oReader.m_oState->m_sCurText.erase();
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if(sResult.GetLength() > 0)
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{
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std::string str;
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ExecuteTextInternalSkipChars (sResult, oReader, str, nSkipChars);
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ExecuteText ( oDocument, oReader, sResult);
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}
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}
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}
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/*static */void ExecuteTextInternalSkipChars(CString & sResult, RtfReader& oReader, std::string & sKey, int& nSkipChars)
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{
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//удаляем символы вслед за юникодом
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if( nSkipChars > 0 )
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{
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int nLength = sResult.GetLength();
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if( nSkipChars >= nLength )
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{
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nSkipChars -= nLength;
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sResult.Empty();
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}
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else
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{
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sResult = sResult.Right( nLength - nSkipChars );
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nSkipChars = 0;
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}
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}
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if( "u" == sKey )
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{
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//надо правильно установить m_nSkipChars по значению \ucN
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nSkipChars = oReader.m_oState->m_nUD;
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}
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}
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/*static */CString ExecuteTextInternalCodePage( std::string & sCharString, RtfDocument & oDocument, RtfReader & oReader);
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bool m_bUseGlobalCodepage;
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private:
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RtfToken m_oTok;
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bool m_bCanStartNewReader;
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int m_nSkipChars;
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bool m_bSkip;
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bool m_bStopReader;
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protected:
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int m_nCurGroups;
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};
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