121 lines
1.8 KiB
C++
121 lines
1.8 KiB
C++
#include "helpers.h"
|
|
|
|
#include <fstream>
|
|
|
|
using nlohmann::json;
|
|
|
|
using std::endl;
|
|
using std::ifstream;
|
|
using std::ofstream;
|
|
using std::istream;
|
|
using std::ostream;
|
|
using std::string;
|
|
|
|
bool read_file_json(json& j, const string& filename, ostream* log)
|
|
{
|
|
ifstream file(filename);
|
|
|
|
if (!file.is_open())
|
|
{
|
|
if (nullptr != log)
|
|
{
|
|
*log << "Could not open file to read - " << filename << endl;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
return read_stream_json(j, file, log);
|
|
}
|
|
|
|
bool read_stream_json(json& j, istream& in, ostream* log)
|
|
{
|
|
// Parse with comments
|
|
try
|
|
{
|
|
j = json::parse(in, nullptr, true, true);
|
|
}
|
|
catch (const std::exception &e)
|
|
{
|
|
if (nullptr != log)
|
|
{
|
|
*log << e.what() << endl;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool write_file_json(const json& j, const string& filename, ostream* log)
|
|
{
|
|
ofstream file(filename);
|
|
|
|
if (!file.is_open())
|
|
{
|
|
if (nullptr != log)
|
|
{
|
|
*log << "Could not open file to write - " << filename << endl;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
file << j.dump(4) << endl;
|
|
|
|
return true;
|
|
}
|
|
|
|
bool json_extract(const json& j, const string& key, string& out)
|
|
{
|
|
bool result = false;
|
|
|
|
if (j.contains(key) && j[key].is_string())
|
|
{
|
|
out = j[key];
|
|
result = true;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
bool json_extract(const json& j, const string& key, int& out)
|
|
{
|
|
bool result = false;
|
|
|
|
if (j.contains(key) && j[key].is_number_integer())
|
|
{
|
|
out = j[key];
|
|
result = true;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
bool json_extract(const json& j, const string& key, bool& out)
|
|
{
|
|
bool result = false;
|
|
|
|
if (j.contains(key) && j[key].is_boolean())
|
|
{
|
|
out = j[key];
|
|
result = true;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
bool json_extract(const json& j, const string& key, uint16_t& out)
|
|
{
|
|
bool result = false;
|
|
|
|
if (j.contains(key) && j[key].is_number_integer())
|
|
{
|
|
if ((j[key] >= 0) && (j[key] <= UINT16_MAX))
|
|
{
|
|
out = j[key];
|
|
result = true;
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|