src/itemstackmetadata.cpp

   1 #include "itemstackmetadata.h"
   2 #include "util/serialize.h"
   3 #include "util/strfnd.h"
   4
   5 #define DESERIALIZE_START '\x01'
   6 #define DESERIALIZE_KV_DELIM '\x02'
   7 #define DESERIALIZE_PAIR_DELIM '\x03'
   8 #define DESERIALIZE_START_STR "\x01"
   9 #define DESERIALIZE_KV_DELIM_STR "\x02"
  10 #define DESERIALIZE_PAIR_DELIM_STR "\x03"
  11
  12 void ItemStackMetadata::serialize(std::ostream &os) const
  13 {
  14         std::ostringstream os2;
  15         os2 << DESERIALIZE_START;
  16         for (const auto &stringvar : m_stringvars) {
  17                 if (!stringvar.first.empty() || !stringvar.second.empty())
  18                         os2 << stringvar.first << DESERIALIZE_KV_DELIM
  19                                 << stringvar.second << DESERIALIZE_PAIR_DELIM;
  20         }
  21         os << serializeJsonStringIfNeeded(os2.str());
  22 }
  23
  24 void ItemStackMetadata::deSerialize(std::istream &is)
  25 {
  26         std::string in = deSerializeJsonStringIfNeeded(is);
  27
  28         m_stringvars.clear();
  29
  30         if (!in.empty()) {
  31                 if (in[0] == DESERIALIZE_START) {
  32                         Strfnd fnd(in);
  33                         fnd.to(1);
  34                         while (!fnd.at_end()) {
  35                                 std::string name = fnd.next(DESERIALIZE_KV_DELIM_STR);
  36                                 std::string var  = fnd.next(DESERIALIZE_PAIR_DELIM_STR);
  37                                 m_stringvars[name] = var;
  38                         }
  39                 } else {
  40                         // BACKWARDS COMPATIBILITY
  41                         m_stringvars[""] = in;
  42                 }
  43         }
  44 }