Перевод кодировок

typedef unsigned char u8;
u8 ascii_table[] = { 0x0, 0x1 ... };
u8 utf8_table[] = { 0x0, 0x1 ... };
 
//Я сейчас не могу выложить точные значения элементов этих кодировочных таблиц - уже нету!
 
//При этом перевод строки производится так:
char *ascii_to_utf8( char const *ascii_str )
{
u8 *result = (u8*) std::strdup( ascii_str );
while( *result ) *result = utf8_table[*result];
return result;
};
 
//и так:
 
char *utf8_to_ascii( char const *utf8_str )
{
u8 *result = (u8*) std::strdup( utf8_str );
while( *result ) *result = ascii_table[*result];
return result;
};

typedef unsigned char u8;
u8 ascii_table[] = {-0x00, -0x01, -0x02, -0x03, -0x04, -0x05, -0x06, -0x07, -0x08, -0x09, -0x0a, -0x0b, -0x0c, -0x0d, -0x0e, -0x0f, -0x10, -0x11, -0x12, -0x13, -0x14, -0x15, -0x16, -0x17, -0x18, -0x19, -0x1a, -0x1b, -0x1c, -0x1d, -0x1e, -0x1f, -0x20, -0x21, -0x22, -0x23, -0x24, -0x25, -0x26, -0x27, -0x28, -0x29, -0x2a, -0x2b, -0x2c, -0x2d, -0x2e, -0x2f, -0x30, -0x31, -0x32, -0x33, -0x34, -0x35, -0x36, -0x37, -0x38, -0x39, -0x3a, -0x3b, -0x3c, -0x3d, -0x3e, -0x3f, -0x40, -0x41, -0x42, -0x43, -0x44, -0x45, -0x46, -0x47, -0x48, -0x49, -0x4a, -0x4b, -0x4c, -0x4d, -0x4e, -0x4f, -0x50, -0x51, -0x52, -0x53, -0x54, -0x55, -0x56, -0x57, -0x58, -0x59, -0x5a, -0x5b, -0x5c, -0x5d, -0x5e, -0x5f, -0x60, -0x61, -0x62, -0x63, -0x64, -0x65, -0x66, -0x67, -0x68, -0x69, -0x6a, -0x6b, -0x6c, -0x6d, -0x6e, -0x6f, -0x70, -0x71, -0x72, -0x73, -0x74, -0x75, -0x76, -0x77, -0x78, -0x79, -0x7a, -0x7b, -0x7c, -0x7d, -0x7e, -0x7f, -0x80, -0x81, -0x82, -0x83, -0x84, -0x85, -0x86, -0x87, -0x88, -0x89, -0x8a, -0x8b, -0x8c, -0x8d, -0x8e, -0x8f, -0x90, -0x91, -0x92, -0x93, -0x94, -0x95, -0x96, -0x97, -0x98, -0x99, -0x9a, -0x9b, -0x9c, -0x9d, -0x9e, -0x9f, -0xa0, -0xa1, -0xa2, -0xa3, -0xa4, -0xa5, -0xa6, -0xa7, -0xa8, -0xa9, -0xaa, -0xab, -0xac, -0xad, -0xae, -0xaf, -0xb0, -0xb1, -0xb2, -0xb3, -0xb4, -0xb5, -0xb6, -0xb7, -0xb8, -0xb9, -0xba, -0xbb, -0xbc, -0xbd, -0xbe, -0xbf, -0xc0, -0xc1, -0xc2, -0xc3, -0xc4, -0xc5, -0xc6, -0xc7, -0xc8, -0xc9, -0xca, -0xcb, -0xcc, -0xcd, -0xce, -0xcf, -0xd0, -0xd1, -0xd2, -0xd3, -0xd4, -0xd5, -0xd6, -0xd7, -0xd8, -0xd9, -0xda, -0xdb, -0xdc, -0xdd, -0xde, -0xdf, -0xf0, -0xf1, -0xf2, -0xf3, -0xf4, -0xf5, -0xf6, -0xf7, -0xf8, -0xf9, -0xfa, -0xfb, -0xfc, -0xfd, -0xfe, -0xff, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff};
u8 utf8_table[] = {-0x00, -0x01, -0x02, -0x03, -0x04, -0x05, -0x06, -0x07, -0x08, -0x09, -0x0a, -0x0b, -0x0c, -0x0d, -0x0e, -0x0f, -0x10, -0x11, -0x12, -0x13, -0x14, -0x15, -0x16, -0x17, -0x18, -0x19, -0x1a, -0x1b, -0x1c, -0x1d, -0x1e, -0x1f, -0x20, -0x21, -0x22, -0x23, -0x24, -0x25, -0x26, -0x27, -0x28, -0x29, -0x2a, -0x2b, -0x2c, -0x2d, -0x2e, -0x2f, -0x30, -0x31, -0x32, -0x33, -0x34, -0x35, -0x36, -0x37, -0x38, -0x39, -0x3a, -0x3b, -0x3c, -0x3d, -0x3e, -0x3f, -0x40, -0x41, -0x42, -0x43, -0x44, -0x45, -0x46, -0x47, -0x48, -0x49, -0x4a, -0x4b, -0x4c, -0x4d, -0x4e, -0x4f, -0x50, -0x51, -0x52, -0x53, -0x54, -0x55, -0x56, -0x57, -0x58, -0x59, -0x5a, -0x5b, -0x5c, -0x5d, -0x5e, -0x5f, -0x60, -0x61, -0x62, -0x63, -0x64, -0x65, -0x66, -0x67, -0x68, -0x69, -0x6a, -0x6b, -0x6c, -0x6d, -0x6e, -0x6f, -0x70, -0x71, -0x72, -0x73, -0x74, -0x75, -0x76, -0x77, -0x78, -0x79, -0x7a, -0x7b, -0x7c, -0x7d, -0x7e, -0x7f, -(0xC2,-0x80), -(0xC2,-0x81), -(0xC2,-0x82), -(0xC2,-0x83), -(0xC2,-0x84), -(0xC2,-0x85), -(0xC2,-0x86), -(0xC2,-0x87), -(0xC2,-0x88), -(0xC2,-0x89), -(0xC2,-0x8a), -(0xC2,-0x8b), -(0xC2,-0x8c), -(0xC2,-0x8d), -(0xC2,-0x8e), -(0xC2,-0x8f), -(0xC2,-0x90), -(0xC2,-0x91), -(0xC2,-0x92), -(0xC2,-0x93), -(0xC2,-0x94), -(0xC2,-0x95), -(0xC2,-0x96), -(0xC2,-0x97), -(0xC2,-0x98), -(0xC2,-0x99), -(0xC2,-0x9a), -(0xC2,-0x9b), -(0xC2,-0x9c), -(0xC2,-0x9d), -(0xC2,-0x9e), -(0xC2,-0x9f), -(0xC2,-0xa0), -(0xC2,-0xa1), -(0xC2,-0xa2), -(0xC2,-0xa3), -(0xC2,-0xa4), -(0xC2,-0xa5), -(0xC2,-0xa6), -(0xC2,-0xa7), -(0xC2,-0xa8), -(0xC2,-0xa9), -(0xC2,-0xaa), -(0xC2,-0xab), -(0xC2,-0xac), -(0xC2,-0xad), -(0xC2,-0xae), -(0xC2,-0xaf), -(0xC2,-0xb0), -(0xC2,-0xb1), -(0xC2,-0xb2), -(0xC2,-0xb3), -(0xC2,-0xb4), -(0xC2,-0xb5), -(0xC2,-0xb6), -(0xC2,-0xb7), -(0xC2,-0xb8), -(0xC2,-0xb9), -(0xC2,-0xba), -(0xC2,-0xbb), -(0xC2,-0xbc), -(0xC2,-0xbd), -(0xC2,-0xbe), -(0xC2,-0xbf), -(0xc3,-0x80), -(0xc3,-0x81), -(0xc3,-0x82), -(0xc3,-0x83), -(0xc3,-0x84), -(0xc3,-0x85), -(0xc3,-0x86), -(0xc3,-0x87), -(0xc3,-0x88), -(0xc3,-0x89), -(0xc3,-0x8a), -(0xc3,-0x8b), -(0xc3,-0x8c), -(0xc3,-0x8d), -(0xc3,-0x8e), -(0xc3,-0x8f), -(0xc3,-0x90), -(0xc3,-0x91), -(0xc3,-0x92), -(0xc3,-0x93), -(0xc3,-0x94), -(0xc3,-0x95), -(0xc3,-0x96), -(0xc3,-0x97), -(0xc3,-0x98), -(0xc3,-0x99), -(0xc3,-0x9a), -(0xc3,-0x9b), -(0xc3,-0x9c), -(0xc3,-0x9d), -(0xc3,-0x9e), -(0xc3,-0x9f), -(0xc3,-0xa0), -(0xc3,-0xa1), -(0xc3,-0xa2), -(0xc3,-0xa3), -(0xc3,-0xa4), -(0xc3,-0xa5), -(0xc3,-0xa6), -(0xc3,-0xa7), -(0xc3,-0xa8), -(0xc3,-0xa9), -(0xc3,-0xaa), -(0xc3,-0xab), -(0xc3,-0xac), -(0xc3,-0xad), -(0xc3,-0xae), -(0xc3,-0xaf), -(0xc3,-0xb0), -(0xc3,-0xb1), -(0xc3,-0xb2), -(0xc3,-0xb3), -(0xc3,-0xb4), -(0xc3,-0xb5), -(0xc3,-0xb6), -(0xc3,-0xb7), -(0xc3,-0xb8), -(0xc3,-0xb9), -(0xc3,-0xba), -(0xc3,-0xbb), -(0xc3,-0xbc), -(0xc3,-0xbd), -(0xc3,-0xbe), -(0xc3,-0xbf), 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, (0xC2,0x80), (0xC2,0x81), (0xC2,0x82), (0xC2,0x83), (0xC2,0x84), (0xC2,0x85), (0xC2,0x86), (0xC2,0x87), (0xC2,0x88), (0xC2,0x89), (0xC2,0x8a), (0xC2,0x8b), (0xC2,0x8c), (0xC2,0x8d), (0xC2,0x8e), (0xC2,0x8f), (0xC2,0x90), (0xC2,0x91), (0xC2,0x92), (0xC2,0x93), (0xC2,0x94), (0xC2,0x95), (0xC2,0x96), (0xC2,0x97), (0xC2,0x98), (0xC2,0x99), (0xC2,0x9a), (0xC2,0x9b), (0xC2,0x9c), (0xC2,0x9d), (0xC2,0x9e), (0xC2,0x9f), (0xC2,0xa0), (0xC2,0xa1), (0xC2,0xa2), (0xC2,0xa3), (0xC2,0xa4), (0xC2,0xa5), (0xC2,0xa6), (0xC2,0xa7), (0xC2,0xa8), (0xC2,0xa9), (0xC2,0xaa), (0xC2,0xab), (0xC2,0xac), (0xC2,0xad), (0xC2,0xae), (0xC2,0xaf), (0xC2,0xb0), (0xC2,0xb1), (0xC2,0xb2), (0xC2,0xb3), (0xC2,0xb4), (0xC2,0xb5), (0xC2,0xb6), (0xC2,0xb7), (0xC2,0xb8), (0xC2,0xb9), (0xC2,0xba), (0xC2,0xbb), (0xC2,0xbc), (0xC2,0xbd), (0xC2,0xbe), (0xC2,0xbf), (0xc3,0x80), (0xc3,0x81), (0xc3,0x82), (0xc3,0x83), (0xc3,0x84), (0xc3,0x85), (0xc3,0x86), (0xc3,0x87), (0xc3,0x88), (0xc3,0x89), (0xc3,0x8a), (0xc3,0x8b), (0xc3,0x8c), (0xc3,0x8d), (0xc3,0x8e), (0xc3,0x8f), (0xc3,0x90), (0xc3,0x91), (0xc3,0x92), (0xc3,0x93), (0xc3,0x94), (0xc3,0x95), (0xc3,0x96), (0xc3,0x97), (0xc3,0x98), (0xc3,0x99), (0xc3,0x9a), (0xc3,0x9b), (0xc3,0x9c), (0xc3,0x9d), (0xc3,0x9e), (0xc3,0x9f), (0xc3,0xa0), (0xc3,0xa1), (0xc3,0xa2), (0xc3,0xa3), (0xc3,0xa4), (0xc3,0xa5), (0xc3,0xa6), (0xc3,0xa7), (0xc3,0xa8), (0xc3,0xa9), (0xc3,0xaa), (0xc3,0xab), (0xc3,0xac), (0xc3,0xad), (0xc3,0xae), (0xc3,0xaf), (0xc3,0xb0), (0xc3,0xb1), (0xc3,0xb2), (0xc3,0xb3), (0xc3,0xb4), (0xc3,0xb5), (0xc3,0xb6), (0xc3,0xb7), (0xc3,0xb8), (0xc3,0xb9), (0xc3,0xba), (0xc3,0xbb), (0xc3,0xbc), (0xc3,0xbd), (0xc3,0xbe), (0xc3,0xbf)};
 
//Я сейчас не могу выложить точные значения элементов этих кодировочных таблиц - уже нету!
 
//При этом перевод строки производится так:
char *ascii_to_utf8( char const *ascii_str )
{
u8 *result = (u8*) strdup( ascii_str );
int size=strlen(ascii_str);
for(int i=0;i<size;i++){
    *result = utf8_table[*result];
}
return (char*)result;
};
 
//и так:
 
char *utf8_to_ascii( char const *utf8_str )
{
u8 *result = (u8*) strdup( utf8_str );
int size=strlen(utf8_str);
for(int i=0;i<size;i++){
    *result = ascii_table[*result];
}
//while( *result ) *result = ascii_table[*result];
return (char*)result;
};

int writer(char *data, size_t size, size_t nmemb, string *buffer)
{
  //переменная - результат, по умолчанию нулевая
  int result = 0;
  //проверяем буфер
  if (buffer != NULL)
  {
    //добавляем к буферу строки из data, в количестве nmemb
    buffer->append(data, size * nmemb);
    //вычисляем объем принятых данных
    result = size * nmemb;
  }
  //вовзращаем результат
  return result;
}
 
 
 
 
 
 
string get_url_to_str(string url){
    
char errorBuffer[CURL_ERROR_SIZE];//буффер ошибок
string buffer;//объялвяем буфер принимаемых данных
 
    //необходимые CURL объекты
    CURL *curl;
    CURLcode result;
    //инициализируем curl
    curl = curl_easy_init();
    //проверяем результат инициализации
    if (curl)
    {
      //задаем все необходимые опции
      //определяем, куда выводить ошибки
      curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, errorBuffer);
      //задаем опцию - получить страницу по адресу url
      curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
      //указываем прокси сервер
      curl_easy_setopt(curl, CURLOPT_PROXY, "proxy:8080");
      //задаем опцию отображение заголовка страницы
      curl_easy_setopt(curl, CURLOPT_HEADER, 1);
      //указываем функцию обратного вызова для записи получаемых данных
      curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, writer);
      //указываем куда записывать принимаемые данные
      curl_easy_setopt(curl, CURLOPT_WRITEDATA, &buffer);
      
      //запускаем выполнение задачи
      result = curl_easy_perform(curl);
      //проверяем успешность выполнения операции
      if (result != CURLE_OK)return "none";
    }
 
 
    //ofstream write("dump.project.url.data",ios::out);
    //write<<buffer;
    //buffer=read("dump.project.url.data");
 // write.clear();
  curl_easy_cleanup(curl);
 
  return buffer;
}