| Octane v1.01.20 - The Open Compression Toolkit for C++ | http://octane.sourceforge.net/ |
00001 00002 00003 00004 00005 00006 00007 00008 00009 00010 00011 00012 //--------------------------------------------------------------------------- 00013 00014 //--------------------------------------------------------------------------- 00015 // recursive header protection 00016 #ifndef SampleParserH 00017 #define SampleParserH 00018 //--------------------------------------------------------------------------- 00019 00020 //--------------------------------------------------------------------------- 00021 // application includes 00022 #include "../parser.hpp" 00023 #include "../../bitio/bitio.hpp" 00024 // system includes 00025 using namespace std; 00026 //--------------------------------------------------------------------------- 00027 00028 00029 00030 00031 //--------------------------------------------------------------------------- 00032 // this parser uses 256 symbols 00033 // symbols 0-255 are ascii characters, symbol 255 is used for end of stream 00034 #define SampleParser_EndOfStreamSYMBOL 255 00035 //--------------------------------------------------------------------------- 00036 00037 00038 00039 00040 //--------------------------------------------------------------------------- 00045 class SampleParser : public OctaneParser 00046 { 00047 protected: 00050 bool senteos; 00051 public: 00052 //--------------------------------------------------------------------------- 00054 SampleParser() {;}; 00056 ~SampleParser() {;}; 00057 //--------------------------------------------------------------------------- 00058 public: 00059 //--------------------------------------------------------------------------- 00060 // PARSER PUBLIC API - PREPARATIONS FOR PARSING 00061 virtual bool CreateSymbolSetUsingStream(bitreader &from) {return true;}; 00062 virtual bool IsReadyToParse() {return true;}; 00063 virtual bool RewindAnyBufferedInput(bitreader &from) {return true;}; 00064 //--------------------------------------------------------------------------- 00065 public: 00066 //--------------------------------------------------------------------------- 00067 // PARSER PUBLIC API - MAIN PARSING FUNCTIONS 00068 virtual void SynchronizeStateForNewStream(); 00069 virtual int GetSymbolCount() {return 256;}; 00070 virtual bool ParseNextSymbolFromInput(bitreader &from, int &symbolnum); 00071 virtual bool WriteSymbolText(bitwriter &to, int symbolnum,bool &isendofstreamsymbol); 00072 virtual string LookupSymbolText(int symbolnum); 00073 //--------------------------------------------------------------------------- 00074 public: 00075 //--------------------------------------------------------------------------- 00076 // OCTANE PUBLIC API - AUXILIARY FUNCTIONS - these are supported by all derived classes 00077 virtual void ShowDebuggingInfo() {;}; 00078 virtual unsigned int GetMemoryUsed() {return (unsigned int)(sizeof(this));}; 00079 virtual unsigned int GetDiskspaceUsed(bool fortempdecompressiononly) {return (unsigned int)0;}; 00080 virtual std::string GetParametersInformation() {return "";}; 00081 virtual void SetDefaultParameters() {;}; 00082 virtual bool SetParameter(const std::string ¶metername,const std::string ¶metervalue) {return false;}; 00083 virtual bool SaveState(bitwriter &to,bool fortempdecompressiononly) {return true;}; 00084 virtual bool LoadState(bitreader &from) {return true;}; 00085 //--------------------------------------------------------------------------- 00086 }; 00087 //--------------------------------------------------------------------------- 00088 00089 00090 00091 00092 00093 //--------------------------------------------------------------------------- 00094 #endif 00095 //--------------------------------------------------------------------------- 00096