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 (StringMap::const_iterator
  17                         it = m_stringvars.begin();
  18                         it != m_stringvars.end(); ++it) {
  19                 os2 << it->first << DESERIALIZE_KV_DELIM
  20                     << it->second << DESERIALIZE_PAIR_DELIM;
  21         }
  22         os << serializeJsonStringIfNeeded(os2.str());
  23 }
  24
  25 void ItemStackMetadata::deSerialize(std::istream &is)
  26 {
  27         std::string in = deSerializeJsonStringIfNeeded(is);
  28
  29         m_stringvars.clear();
  30
  31         if (!in.empty()) {
  32                 if (in[0] == DESERIALIZE_START) {
  33                         Strfnd fnd(in);
  34                         fnd.to(1);
  35                         while (!fnd.at_end()) {
  36                                 std::string name = fnd.next(DESERIALIZE_KV_DELIM_STR);
  37                                 std::string var  = fnd.next(DESERIALIZE_PAIR_DELIM_STR);
  38                                 m_stringvars[name] = var;
  39                         }
  40                 } else {
  41                         // BACKWARDS COMPATIBILITY
  42                         m_stringvars[""] = in;
  43                 }
  44         }
  45 }