writerfilter/source/rtftok/rtftokenizer.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  */
   9
  10 #pragma once
  11
  12 #include "rtflistener.hxx"
  13
  14 #include <vector>
  15 #include <unordered_map>
  16
  17 #include <com/sun/star/uno/Reference.h>
  18
  19 #include <rtl/ustring.hxx>
  20 #include <tools/ref.hxx>
  21
  22 namespace com::sun::star::task
  23 {
  24 class XStatusIndicator;
  25 }
  26 class SvStream;
  27
  28 namespace writerfilter::rtftok
  29 {
  30 /// RTF tokenizer that separates control words from text.
  31 class RTFTokenizer final : public virtual SvRefBase
  32 {
  33 public:
  34     RTFTokenizer(RTFListener& rImport, SvStream* pInStream,
  35                  css::uno::Reference<css::task::XStatusIndicator> const& xStatusIndicator);
  36     ~RTFTokenizer() override;
  37
  38     RTFError resolveParse();
  39     /// Number of states on the stack.
  40     int getGroup() const { return m_nGroup; }
  41     /// To be invoked by the pushState() callback to signal when the importer enters a group.
  42     void pushGroup();
  43     /// To be invoked by the popState() callback to signal when the importer leaves a group.
  44     void popGroup();
  45     OUString getPosition();
  46     std::size_t getGroupStart() const { return m_nGroupStart; }
  47     /// To look up additional properties of a math symbol.
  48     static bool lookupMathKeyword(RTFMathSymbol& rSymbol);
  49
  50 private:
  51     SvStream& Strm() { return *m_pInStream; }
  52     RTFError resolveKeyword();
  53     RTFError dispatchKeyword(OString const& rKeyword, bool bParam, int nParam);
  54
  55     RTFListener& m_rImport;
  56     SvStream* m_pInStream;
  57     css::uno::Reference<css::task::XStatusIndicator> const& m_xStatusIndicator;
  58     // This is the same as aRTFControlWords, but mapped by token name for fast lookup
  59     static std::unordered_map<OString, RTFSymbol> s_aRTFControlWords;
  60     static bool s_bControlWordsInitialised;
  61     // This is the same as aRTFMathControlWords, but sorted
  62     static std::vector<RTFMathSymbol> s_aRTFMathControlWords;
  63     static bool s_bMathControlWordsSorted;
  64     /// Same as the size of the importer's states, except that this can be negative for invalid input.
  65     int m_nGroup;
  66     sal_Int32 m_nLineNumber;
  67     std::size_t m_nLineStartPos;
  68     std::size_t m_nGroupStart;
  69 };
  70 } // namespace writerfilter::rtftok
  71
  72 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */