source/stringcodec/windows1252.cpp

   1 #include "windows1252.h"
   2
   3 using namespace std;
   4
   5 namespace {
   6
   7 unsigned short table[32]=
   8 {
   9         0x20AC, 0,      0x201A, 0x0192, 0x201E, 0x2026, 0x2020, 0x2021,
  10         0x02C6, 0x2030, 0x0160, 0x2039, 0x0152, 0,      0x017D, 0,
  11         0,      0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,
  12         0x02DC, 0x2122, 0x0161, 0x203A, 0x0153, 0,      0x017E, 0x0178
  13 };
  14
  15 }
  16
  17
  18 namespace Msp {
  19 namespace StringCodec {
  20
  21 void Windows1252::Encoder::encode_char(unichar ch, string &buf)
  22 {
  23         if((ch>=0 && ch<=0x7F) || (ch>=0xA0 && ch<=0xFF))
  24                 buf += ch;
  25         else
  26         {
  27                 for(unsigned i=0; i<32; ++i)
  28                         if(table[i]==ch)
  29                         {
  30                                 buf += ch;
  31                                 return;
  32                         }
  33
  34                 error(ch, buf, invalid_character(ch, "Windows-1252"));
  35         }
  36 }
  37
  38 void Windows1252::Encoder::transliterate(unichar, string &buf)
  39 {
  40         buf += '?';
  41 }
  42
  43
  44 unichar Windows1252::Decoder::decode_char(const string &str, string::const_iterator &i)
  45 {
  46         if(i==str.end())
  47                 return -1;
  48
  49         int ch = static_cast<unsigned char>(*i);
  50         unichar result;
  51         if(ch>=0x80 && ch<=0x9F)
  52         {
  53                 result = table[ch-0x80];
  54                 if(result==0)
  55                         result = error(invalid_sequence(i, i+1, "undefined Windows-1252 character"));
  56         }
  57         else
  58                 result = ch;
  59
  60         ++i;
  61         return result;
  62 }
  63
  64 } // namespace StringCodec
  65 } // namespace Msp