source/iso646fi.cpp

   1 #include "iso646fi.h"
   2
   3 using namespace std;
   4
   5 namespace Msp {
   6
   7 void Iso646Fi::Encoder::encode_char(wchar_t c)
   8 {
   9         if((c>=0 && c<=0x5A) || c==0x5F || (c>=0x61 && c<=0x7A))
  10                 append(c);
  11         else if(c==0xC4)
  12                 append(0x5B);
  13         else if(c==0xC5)
  14                 append(0x5D);
  15         else if(c==0xD6)
  16                 append(0x5C);
  17         else if(c==0xDC)
  18                 append(0x5E);
  19         else if(c==0xE4)
  20                 append(0x7B);
  21         else if(c==0xE5)
  22                 append(0x7D);
  23         else if(c==0xE9)
  24                 append(0x60);
  25         else if(c==0xF6)
  26                 append(0x7C);
  27         else if(c==0xFC)
  28                 append(0x7E);
  29         else
  30                 throw CodecError("Can't express character in ISO-646-FI");
  31 }
  32
  33 void Iso646Fi::Decoder::decode_char(const string &str, string::const_iterator &i)
  34 {
  35         if(i==str.end())
  36                 return;
  37
  38         unsigned char c=*i++;
  39         if(c==0x5B)
  40                 append(0xC4);
  41         else if(c==0x5C)
  42                 append(0xD6);
  43         else if(c==0x5D)
  44                 append(0xC5);
  45         else if(c==0x5E)
  46                 append(0xDC);
  47         else if(c==0x60)
  48                 append(0xE9);
  49         else if(c==0x7B)
  50                 append(0xE4);
  51         else if(c==0x7C)
  52                 append(0xF6);
  53         else if(c==0x7D)
  54                 append(0xE5);
  55         else if(c==0x7E)
  56                 append(0xFC);
  57         else if(c<=0x7F)
  58                 append(c);
  59         else
  60                 throw CodecError("Invalid ISO-646-FI string (undefined character)");
  61 }
  62
  63 }