Hi -
I don't have the code in front of me, but we had to modify the grammar for the JSON parser in boost property_tree in order to read top-level groups. If you're familiar with boost spirit, I think it's not too much work.
BrianOn Mon, Dec 27, 2010 at 11:14 AM, Olivier Tournaire <olitour@gmail.com> wrote:Hi all,I am currently trying to parse a JSON file, but cannot figure how to achieve this task (see for instance http://ax.itunes.apple.com/WebObjects/MZStoreServices.woa/wa/wsSearch?term=sudoku&entity=software&limit=1).Here is a piece of code:
#ifndef ITUNES_JSON_STRUCTURE_HPP#define ITUNES_JSON_STRUCTURE_HPP#include <boost/property_tree/ptree.hpp>#include <string>class itunes_json_structure{
public:void load(const std::string &filename);boost::property_tree::ptree m_ptree;};
#endif // ITUNES_JASON_STRUCTURE_HPP
#include "itunes_jason_structure.hpp"#include <boost/property_tree/json_parser.hpp>#include <iostream>using namespace std;void itunes_json_structure::load(const string &filename){
using boost::property_tree::ptree;try{// Load the JSON file into the property tree. If reading fails// (cannot open file, parse error), an exception is thrown.read_json(filename, m_ptree);cout << "resultCount = " << m_ptree.get<string>("resultCount") << endl;ptree all_results = m_ptree.get_child("results");// HERE!!! How can I read the content of the "results" node????
}catch(exception &e){throw e;}}
I am unable to read the content of the "results" node. Could you please give me some help?Regards,Olivier
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