source/utf8.h

   1 #ifndef MSP_STRINGS_UTF8_H_
   2 #define MSP_STRINGS_UTF8_H_
   3
   4 #include "codec.h"
   5
   6 namespace Msp {
   7
   8 class Utf8: public StringCodec
   9 {
  10 public:
  11         class Encoder: public StringCodec::Encoder
  12         {
  13         public:
  14                 Encoder(ErrorMode em=THROW_ON_ERROR): StringCodec::Encoder(em) { }
  15                 void encode_char(wchar_t);
  16         private:
  17                 void append_replacement() { append("\357\277\275"); }
  18         };
  19
  20         class Decoder: public StringCodec::Decoder
  21         {
  22         public:
  23                 Decoder(ErrorMode em=THROW_ON_ERROR): StringCodec::Decoder(em), bytes(0), code(0) { }
  24                 void     decode_char(const std::string &, std::string::const_iterator &);
  25                 void     sync();
  26                 void     reset();
  27         private:
  28                 unsigned bytes;
  29                 unsigned code;
  30         };
  31
  32         Encoder *create_encoder(ErrorMode em=THROW_ON_ERROR) const { return new Encoder(em); }
  33         Decoder *create_decoder(ErrorMode em=THROW_ON_ERROR) const { return new Decoder(em); }
  34 };
  35
  36 } // namespace Msp
  37
  38 #endif