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         // Win32 has typedef unsigned short wchar_t
  10         int c=c_;
  11
  12         if((c>=0 && c<=0x5A) || c==0x5F || (c>=0x61 && c<=0x7A))
  13                 append(c);
  14         else if(c==0xC4)
  15                 append(0x5B);
  16         else if(c==0xC5)
  17                 append(0x5D);
  18         else if(c==0xD6)
  19                 append(0x5C);
  20         else if(c==0xDC)
  21                 append(0x5E);
  22         else if(c==0xE4)
  23                 append(0x7B);
  24         else if(c==0xE5)
  25                 append(0x7D);
  26         else if(c==0xE9)
  27                 append(0x60);
  28         else if(c==0xF6)
  29                 append(0x7C);
  30         else if(c==0xFC)
  31                 append(0x7E);
  32         else
  33                 error("Can't express character in ISO-646-FI");
  34 }
  35
  36 void Iso646Fi::Decoder::decode_char(const string &str, string::const_iterator &i)
  37 {
  38         if(i==str.end())
  39                 return;
  40
  41         unsigned char c=*i++;
  42         if(c==0x5B)
  43                 append(0xC4);
  44         else if(c==0x5C)
  45                 append(0xD6);
  46         else if(c==0x5D)
  47                 append(0xC5);
  48         else if(c==0x5E)
  49                 append(0xDC);
  50         else if(c==0x60)
  51                 append(0xE9);
  52         else if(c==0x7B)
  53                 append(0xE4);
  54         else if(c==0x7C)
  55                 append(0xF6);
  56         else if(c==0x7D)
  57                 append(0xE5);
  58         else if(c==0x7E)
  59                 append(0xFC);
  60         else if(c<=0x7F)
  61                 append(c);
  62         else
  63                 error("Invalid ISO-646-FI string (undefined character)");
  64 }
  65
  66 }