bool Zerobuf::_fromJSON( const std::string& string )
{
if( !_allocator )
return true;
Json::Value json;
Json::Reader reader;
if( !reader.parse( string, json ))
{
std::cerr << "Error parsing JSON: "
<< reader.getFormattedErrorMessages() << std::endl;
return false;
}
try
{
_parseJSON( json );
}
catch( const std::exception& e )
{
std::cerr << "Error applying JSON: " << e.what() << std::endl;
return false;
}
compact();
return true;
}
//! (static)
Object* JSON::parseJSON(const std::string &s){
Tokenizer t;
Tokenizer::tokenList_t tokens;
t.getTokens(s.c_str(),tokens);
Tokenizer::tokenList_t::iterator it=tokens.begin();
Object * result= _parseJSON(it,tokens.end());
if(it!=tokens.end() && !Token::isA<TEndScript>(*it)){
std::cout << "JSON Syntax Error\n";
}
if(result==NULL){
result=String::create(s);
}
// for(it=tokens.begin();it!=tokens.end();++it){
// Token::removeReference(*it);
// }
return result;
}
bool Zerobuf::_fromJSON( const std::string& string )
{
if( !_allocator )
throw std::runtime_error(
"Can't convert empty Zerobuf object from JSON" );
Json::Value json;
Json::Reader reader;
if( !reader.parse( string, json ))
{
std::cerr << "Error parsing JSON: "
<< reader.getFormattedErrorMessages() << std::endl;
return false;
}
_parseJSON( json );
compact();
return true;
}
JSONValue* parseJSON(std::string str){
//process the string..
std::string toParse;
bool withinQuotes = false;
for (int i=0,l = str.length(); i<l; i++){
if (str[i]>32 || withinQuotes)
toParse += str[i];
if (str[i] == '\"')
withinQuotes = !withinQuotes;
}
JSONValue* j;
try{
j = _parseJSON(toParse,1);
}catch (const char* x){
std::cout<<"Exception: "<<x<<std::endl;
std::cout<<"Exiting."<<std::endl;
exit(1);
}
return j;
}
//! helper
static Object * _parseJSON(Tokenizer::tokenList_t::iterator & cursor,const Tokenizer::tokenList_t::iterator end){
if(cursor==end)
return NULL;
Token * token=(*cursor).get();
if(dynamic_cast<TOperator*>(token)&& token->toString()=="_-"){ /// unary minus
++cursor;
TObject * tObj = Token::cast<TObject>(*cursor);
if(tObj==NULL || !dynamic_cast<Number*>(tObj->obj.get())){
std::cout << "Number expected! \n";
return NULL;
}
++cursor;
return Number::create(-tObj->obj->toDouble());
// }else if(dynamic_cast<String*>(token) || dynamic_cast<Number*>(token) || dynamic_cast<Bool*>(token)){
// ++cursor;
// return token->clone();
// }else if(dynamic_cast<Void*>(token)){
// ++cursor;
// return Void::get();
}else if(TObject * tObj=dynamic_cast<TObject *>(token)){
++cursor;
return tObj->obj->clone();
}else if (dynamic_cast<TStartBlock *>(token)){
Map *m=Map::create();
++cursor;
while( true){
if(cursor==end){
std::cout << "M1 \n";
break;
}else if( Token::isA<TEndBlock>(*cursor)){
cursor++;
break;
}
TObject * tObj2=Token::cast<TObject>(*cursor);
String * key= (tObj2==NULL ? NULL : dynamic_cast<String*>(tObj2->obj.get()));
if(!key){
std::cout << "string expected \n";
break;
}
++cursor;
if(cursor==end){
std::cout << "M3! \n";
break;
}else if(!Token::isA<TColon>(*cursor)){
std::cout << "':' expected \n";
break;
}
++cursor;
if(cursor==end){
std::cout << "M4! \n";
break;
}
Object * o=_parseJSON(cursor,end);
if(!o){
std::cout << "M5! \n"<<(*cursor)->toString()<<"\n";
break;
}
m->setValue(key->clone(),o);
// ++cursor;
if(cursor==end){
std::cout << "unexpected ending. \n";
break;
}else if(Token::isA<TEndBlock>(*cursor)){
cursor++;
break;
}else if(Token::isA<TDelimiter>(*cursor)){
cursor++;
continue;
}
std::cout << "',' or '}' expected \n";
std::cout <<(*cursor)->toString()<<"\n";
break;
}
return m;
}else if (Token::isA<TStartIndex>(token)){
Array *a=Array::create();
++cursor;
while( true){
if(cursor==end){
std::cout << "A1! \n";
break;
}else if(Token::isA<TEndIndex>(*cursor)){
cursor++;
break;
}
Object * o=_parseJSON(cursor,end);
if(!o){
std::cout << "A2! \n";
break;
}
a->pushBack(o);
// ++cursor;
if(cursor==end){
std::cout << "A3! \n";
break;
}else if(Token::isA<TEndIndex>(*cursor)){
cursor++;
break;
}else if(Token::isA<TDelimiter>(*cursor)){
cursor++;
continue;
}
std::cout << "A4! \n";
std::cout <<(*cursor)->toString()<<"\n";
break;
}
return a;
}
else if(TIdentifier* ti=Token::cast<TIdentifier>(token)){
std::cout << "Unknown Identifier: "<<ti->toString()<<"\n";
return NULL;
}
return NULL;
}
