278 lines
8.8 KiB
C++
278 lines
8.8 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef INCLUDED_SVTOOLS_SVPARSER_HXX
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#define INCLUDED_SVTOOLS_SVPARSER_HXX
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#include <svtools/svtdllapi.h>
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#include <tools/link.hxx>
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#include <tools/ref.hxx>
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#include <rtl/textenc.h>
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#include <rtl/ustring.hxx>
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#include <boost/ptr_container/ptr_vector.hpp>
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#include <boost/utility.hpp>
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#include <vector>
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struct SvParser_Impl;
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class SvStream;
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enum SvParserState
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{
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SVPAR_ACCEPTED = 0,
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SVPAR_NOTSTARTED,
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SVPAR_WORKING,
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SVPAR_PENDING,
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SVPAR_WAITFORDATA,
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SVPAR_ERROR
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};
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class SVT_DLLPUBLIC SvParser : public SvRefBase
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{
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DECL_STATIC_LINK( SvParser, NewDataRead, void* );
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protected:
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SvStream& rInput;
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OUString aToken; // gescanntes Token
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sal_uLong nlLineNr; // akt. Zeilen Nummer
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sal_uLong nlLinePos; // akt. Spalten Nummer
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SvParser_Impl *pImplData; // interne Daten
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long nTokenValue; // zusaetzlicher Wert (RTF)
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bool bTokenHasValue; // indicates whether nTokenValue is valid
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SvParserState eState; // Status auch in abgl. Klassen
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rtl_TextEncoding eSrcEnc; // Source encoding
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sal_uLong nNextChPos;
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sal_Unicode nNextCh; // Akt. Zeichen fuer die "lex"
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bool bDownloadingFile : 1;// sal_True: Es wird gerade ein externes
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// File geladen. d.h. alle
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// DataAvailable Links muessen
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// ignoriert werden.
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// Wenn keibes der folgenden
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// Flags gesetzt ist, wird der
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// Stream als ANSI gelesen,
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// aber als CharSet DONTKNOW
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// zurueckgegeben.
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bool bUCS2BSrcEnc : 1; // oder als big-endian UCS2
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bool bSwitchToUCS2 : 1; // Umschalten des ist erlaubt
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bool bRTF_InTextRead : 1; // only for RTF-Parser!!!
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struct TokenStackType
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{
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OUString sToken;
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long nTokenValue;
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bool bTokenHasValue;
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int nTokenId;
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TokenStackType()
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: nTokenValue(0)
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, bTokenHasValue(false)
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, nTokenId(0)
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{
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}
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~TokenStackType() { }
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};
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// Methoden fuer Token-Stack
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int SkipToken( short nCnt = -1 ); // n Tokens zurueck "skippen"
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TokenStackType* GetStackPtr( short nCnt );
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inline sal_uInt8 GetStackPos() const;
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// scanne das naechste Token:
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// Tokenstack abarbeiten und ggfs. _GetNextToken() rufen. Diese
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// ist fuers erkennen von neuen Token verantwortlich
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int GetNextToken();
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virtual int _GetNextToken() = 0;
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// wird fuer jedes Token gerufen, das in CallParser erkannt wird
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virtual void NextToken( int nToken );
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// zu Zeiten der SvRefBase-Ableitung darf nicht jeder loeschen
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virtual ~SvParser();
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void ClearTxtConvContext();
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private:
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TokenStackType* pTokenStack;
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TokenStackType *pTokenStackPos;
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sal_uInt8 nTokenStackSize, nTokenStackPos;
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public:
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// Konstruktor
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SvParser( SvStream& rIn, sal_uInt8 nStackSize = 3 );
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virtual SvParserState CallParser() = 0; // Aufruf des Parsers
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inline SvParserState GetStatus() const { return eState; } // StatusInfo
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inline sal_uLong GetLineNr() const { return nlLineNr; }
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inline sal_uLong GetLinePos() const { return nlLinePos; }
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inline sal_uLong IncLineNr() { return ++nlLineNr; }
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inline sal_uLong IncLinePos() { return ++nlLinePos; }
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inline sal_uLong SetLineNr( sal_uLong nlNum ); // inline unten
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inline sal_uLong SetLinePos( sal_uLong nlPos ); // inline unten
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sal_Unicode GetNextChar();
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void RereadLookahead();
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inline bool IsParserWorking() const { return SVPAR_WORKING == eState; }
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Link GetAsynchCallLink() const
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{ return STATIC_LINK( this, SvParser, NewDataRead ); }
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long CallAsyncCallLink() { return NewDataRead( this, 0 ); }
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// fuers asynchrone lesen aus dem SvStream
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/*virtual*/ void SaveState( int nToken );
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/*virtual*/ void RestoreState();
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virtual void Continue( int nToken );
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inline void SetDownloadingFile( bool bSet ) { bDownloadingFile = bSet; }
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inline bool IsDownloadingFile() const { return bDownloadingFile; }
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// Set/get source encoding. The UCS2BEncoding flag is valid if source
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// encoding is UCS2. It specifies a big endian encoding.
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void SetSrcEncoding( rtl_TextEncoding eSrcEnc );
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rtl_TextEncoding GetSrcEncoding() const { return eSrcEnc; }
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void SetSrcUCS2BEncoding( bool bSet ) { bUCS2BSrcEnc = bSet; }
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bool IsSrcUCS2BEncoding() const { return bUCS2BSrcEnc; }
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// Darf der Zeichensatz auf UCS/2 umgeschaltet werden, wenn
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// in den ersten beiden Zeichen im Stream eine BOM steht?
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void SetSwitchToUCS2( bool bSet ) { bSwitchToUCS2 = bSet; }
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bool IsSwitchToUCS2() const { return bSwitchToUCS2; }
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// Aus wie vielen Bytes betseht ein Zeichen
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inline sal_uInt16 GetCharSize() const;
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int GetSaveToken() const;
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// Aufbau einer Which-Map 'rWhichMap' aus einem Array von
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// 'pWhichIds' von Which-Ids. Es hat die Lange 'nWhichIds'.
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// Die Which-Map wird nicht geloescht.
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static void BuildWhichTbl( std::vector<sal_uInt16> &rWhichMap,
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sal_uInt16 *pWhichIds,
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sal_uInt16 nWhichIds );
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};
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#ifndef GOODIES_DECL_SVPARSER_DEFINED
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#define GOODIES_DECL_SVPARSER_DEFINED
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typedef tools::SvRef<SvParser> SvParserRef;
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#endif
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inline sal_uLong SvParser::SetLineNr( sal_uLong nlNum )
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{ sal_uLong nlOld = nlLineNr; nlLineNr = nlNum; return nlOld; }
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inline sal_uLong SvParser::SetLinePos( sal_uLong nlPos )
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{ sal_uLong nlOld = nlLinePos; nlLinePos = nlPos; return nlOld; }
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inline sal_uInt8 SvParser::GetStackPos() const
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{ return nTokenStackPos; }
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inline sal_uInt16 SvParser::GetCharSize() const
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{
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return (RTL_TEXTENCODING_UCS2 == eSrcEnc) ? 2 : 1;
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}
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/*========================================================================
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*
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* SvKeyValue.
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*
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*======================================================================*/
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class SvKeyValue
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{
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/** Representation.
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*/
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OUString m_aKey;
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OUString m_aValue;
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public:
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/** Construction.
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*/
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SvKeyValue (void)
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{}
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SvKeyValue (const OUString &rKey, const OUString &rValue)
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: m_aKey (rKey), m_aValue (rValue)
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{}
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SvKeyValue (const SvKeyValue &rOther)
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: m_aKey (rOther.m_aKey), m_aValue (rOther.m_aValue)
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{}
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/** Assignment.
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*/
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SvKeyValue& operator= (SvKeyValue &rOther)
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{
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m_aKey = rOther.m_aKey;
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m_aValue = rOther.m_aValue;
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return *this;
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}
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/** Operation.
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*/
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const OUString& GetKey (void) const { return m_aKey; }
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const OUString& GetValue (void) const { return m_aValue; }
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void SetKey (const OUString &rKey ) { m_aKey = rKey; }
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void SetValue (const OUString &rValue) { m_aValue = rValue; }
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};
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/*========================================================================
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*
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* SvKeyValueIterator.
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*
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*======================================================================*/
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typedef boost::ptr_vector<SvKeyValue> SvKeyValueList_Impl;
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class SVT_DLLPUBLIC SvKeyValueIterator : public SvRefBase,
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private boost::noncopyable
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{
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/** Representation.
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*/
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SvKeyValueList_Impl* m_pList;
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sal_uInt16 m_nPos;
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public:
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/** Construction/Destruction.
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*/
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SvKeyValueIterator (void);
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virtual ~SvKeyValueIterator (void);
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/** Operation.
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*/
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virtual bool GetFirst (SvKeyValue &rKeyVal);
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virtual bool GetNext (SvKeyValue &rKeyVal);
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virtual void Append (const SvKeyValue &rKeyVal);
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};
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typedef tools::SvRef<SvKeyValueIterator> SvKeyValueIteratorRef;
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#endif // INCLUDED_SVTOOLS_SVPARSER_HXX
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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