source/iso2022jp.h

   1 #ifndef MSP_STRINGS_ISO2022JP_H_
   2 #define MSP_STRINGS_ISO2022JP_H_
   3
   4 #include "codec.h"
   5
   6 namespace Msp {
   7
   8 class Iso2022Jp: public StringCodec
   9 {
  10 public:
  11         enum Mode
  12         {
  13                 ASCII,
  14                 JISX0201,
  15                 JISX0208
  16         };
  17
  18         class Encoder: public StringCodec::Encoder
  19         {
  20         public:
  21                 Encoder(): mode(ASCII) { }
  22                 void encode_char(wchar_t);
  23                 void sync();
  24         private:
  25                 Mode mode;
  26
  27                 void switch_mode(Mode);
  28         };
  29
  30         class Decoder: public StringCodec::Decoder
  31         {
  32         public:
  33                 Decoder();
  34                 void decode_char(const std::string &, std::string::const_iterator &);
  35                 void sync();
  36                 void reset();
  37         private:
  38                 Mode mode;
  39                 StringCodec::Decoder *dec;
  40                 unsigned escape;
  41
  42                 void switch_mode(Mode);
  43         };
  44
  45         Encoder *create_encoder() const { return new Encoder; }
  46         Decoder *create_decoder() const { return new Decoder; }
  47 };
  48
  49 } // namespace Msp
  50
  51 #endif