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Add json_pointer/string_t equality comparison operators (#3664)

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This commit is contained in:
Florian Albrechtskirchinger
2022-08-05 14:08:27 +02:00
committed by GitHub
parent e839f58a2a
commit 9e1a7c85e3
16 changed files with 582 additions and 61 deletions
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19
docs/examples/json_pointer__operator__equal.cpp Normal file
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#include <iostream>
#include <nlohmann/json.hpp>
using json = nlohmann::json;
int main()
{
// different JSON pointers
json::json_pointer ptr0;
json::json_pointer ptr1("");
json::json_pointer ptr2("/foo");
// compare JSON pointers
std::cout << std::boolalpha
<< "\"" << ptr0 << "\" == \"" << ptr0 << "\": " << (ptr0 == ptr0) << '\n'
<< "\"" << ptr0 << "\" == \"" << ptr1 << "\": " << (ptr0 == ptr1) << '\n'
<< "\"" << ptr1 << "\" == \"" << ptr2 << "\": " << (ptr1 == ptr2) << '\n'
<< "\"" << ptr2 << "\" == \"" << ptr2 << "\": " << (ptr2 == ptr2) << std::endl;
}

4
docs/examples/json_pointer__operator__equal.output Normal file
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"" == "": true
"" == "": true
"" == "/foo": false
"/foo" == "/foo": true

33
docs/examples/json_pointer__operator__equal_stringtype.cpp Normal file
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#include <exception>
#include <iostream>
#include <nlohmann/json.hpp>
using json = nlohmann::json;
int main()
{
// different JSON pointers
json::json_pointer ptr0;
json::json_pointer ptr1("");
json::json_pointer ptr2("/foo");
// different strings
std::string str0("");
std::string str1("/foo");
std::string str2("bar");
// compare JSON pointers and strings
std::cout << std::boolalpha
<< "\"" << ptr0 << "\" == \"" << str0 << "\": " << (ptr0 == str0) << '\n'
<< "\"" << str0 << "\" == \"" << ptr1 << "\": " << (str0 == ptr1) << '\n'
<< "\"" << ptr2 << "\" == \"" << str1 << "\": " << (ptr2 == str1) << std::endl;
try
{
std::cout << "\"" << str2 << "\" == \"" << ptr2 << "\": " << (str2 == ptr2) << std::endl;
}
catch (const json::parse_error& ex)
{
std::cout << ex.what() << std::endl;
}
}

4
docs/examples/json_pointer__operator__equal_stringtype.output Normal file
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"" == "": true
"" == "": true
"/foo" == "/foo": true
"bar" == "/foo": [json.exception.parse_error.107] parse error at byte 1: JSON pointer must be empty or begin with '/' - was: 'bar'

19
docs/examples/json_pointer__operator__notequal.cpp Normal file
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#include <iostream>
#include <nlohmann/json.hpp>
using json = nlohmann::json;
int main()
{
// different JSON pointers
json::json_pointer ptr0;
json::json_pointer ptr1("");
json::json_pointer ptr2("/foo");
// compare JSON pointers
std::cout << std::boolalpha
<< "\"" << ptr0 << "\" != \"" << ptr0 << "\": " << (ptr0 != ptr0) << '\n'
<< "\"" << ptr0 << "\" != \"" << ptr1 << "\": " << (ptr0 != ptr1) << '\n'
<< "\"" << ptr1 << "\" != \"" << ptr2 << "\": " << (ptr1 != ptr2) << '\n'
<< "\"" << ptr2 << "\" != \"" << ptr2 << "\": " << (ptr2 != ptr2) << std::endl;
}

4
docs/examples/json_pointer__operator__notequal.output Normal file
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"" != "": false
"" != "": false
"" != "/foo": true
"/foo" != "/foo": false

32
docs/examples/json_pointer__operator__notequal_stringtype.cpp Normal file
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#include <iostream>
#include <nlohmann/json.hpp>
using json = nlohmann::json;
int main()
{
// different JSON pointers
json::json_pointer ptr0;
json::json_pointer ptr1("");
json::json_pointer ptr2("/foo");
// different strings
std::string str0("");
std::string str1("/foo");
std::string str2("bar");
// compare JSON pointers and strings
std::cout << std::boolalpha
<< "\"" << ptr0 << "\" != \"" << str0 << "\": " << (ptr0 != str0) << '\n'
<< "\"" << str0 << "\" != \"" << ptr1 << "\": " << (str0 != ptr1) << '\n'
<< "\"" << ptr2 << "\" != \"" << str1 << "\": " << (ptr2 != str1) << std::endl;
try
{
std::cout << "\"" << str2 << "\" != \"" << ptr2 << "\": " << (str2 != ptr2) << std::endl;
}
catch (const json::parse_error& ex)
{
std::cout << ex.what() << std::endl;
}
}

4
docs/examples/json_pointer__operator__notequal_stringtype.output Normal file
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"" != "": false
"" != "": false
"/foo" != "/foo": false
"bar" != "/foo": [json.exception.parse_error.107] parse error at byte 1: JSON pointer must be empty or begin with '/' - was: 'bar'