Error in JSON string creation with / operator using jsoncpp library - c++

Question

I am using JSONcpp library and facing problem to create json which contains / operator (like date : 02/12/2015). Below is my code:
JSONNODE *n = json_new(JSON_NODE);
json_push_back(n, json_new_a("String Node", "02/05/2015"));
json_char *jc = json_write_formatted(n);
printf("%s\n", jc);
json_free(jc);
json_delete(n);
Output :
{
"String Node":"02\/05\/2015"
}
Check here "\/" in date, we want only "/" in date, so my expected output should look like this:
Expected output:
{
"String Node":"02/05/2015"
}
How to get rid of it? We are using inbuilt library function and we can not modify library.

Answer 1

According to this example
The json_new_a method will escape your string values when you go to
write the final string.
The additional backslashes you are facing in the output are the result of adding escape characters. This is actually a good thing as it prevents both accidental and intentional errors.
I suppose the easies option for you would be to replace all \/ occurrences in output string with single /. I wrote a simple program to do so:
#include <iostream>
#include <string>
#include <boost/algorithm/string/replace.hpp>
using namespace std;
int main()
{
//Here's the "json_char *jc" from your code
const char* jc = "02\\/05\\/2015";
//Replacing code
string str(jc);
boost::replace_all(str, "\\/", "/");
//Show result
cout << "Old output: " << jc << endl;
cout << "New output: " << str << endl;
}
Live demo
BTW: libJSON is not really a C++ library - it's much more C-style which involves many low-level operations and is more complicated and obfuscated than more C++ish libraries. If you'd like to try, there is a nice list of C++ JSON libs here.