mirror of https://github.com/nlohmann/json.git synced 2025-05-10 00:53:52 +00:00

Florian Albrechtskirchinger 616caea27a

Re-template json_pointer on string type (#3415 )

* Make exception context optional

Change exception context parameter to pointer and replace context with
nullptr where appropriate.

* Support escaping other string types

* Add string concatenation function

Add variadic concat() function for concatenating char *, char, and
string types.

* Replace string concatenations using + with concat()

* Template json_pointer on string type

Change json_pointer from being templated on basic_json to being
templated on string type.

* Add unit test for #3388

Closes #3388.

* Fix regression test for #2958

* Add backwards compatibility with json_pointer<basic_json>

* Update json_pointer docs

* Allow comparing different json_pointers

* Update version numbers

2022-04-12 14:18:16 +02:00

1.9 KiB

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nlohmann::json_pointer

template<typename RefStringType>
class json_pointer;

A JSON pointer defines a string syntax for identifying a specific value within a JSON document. It can be used with functions at and operator[]. Furthermore, JSON pointers are the base for JSON patches.

Template parameters

RefStringType: the string type used for the reference tokens making up the JSON pointer

Notes

For backwards compatibility RefStringType may also be a specialization of basic_json in which case string_t will be deduced as basic_json::string_t. This feature is deprecated and may be removed in a future major version.

Member functions

(constructor)
to_string - return a string representation of the JSON pointer
operator string_t - return a string representation of the JSON pointer
operator/= - append to the end of the JSON pointer
operator/ - create JSON Pointer by appending
parent_pointer - returns the parent of this JSON pointer
pop_back - remove last reference token
back - return last reference token
push_back - append an unescaped token at the end of the pointer
empty - return whether pointer points to the root document

Member types

string_t - the string type used for the reference tokens

Version history

Added in version 2.0.0.
Changed template parameter from basic_json to string type in version 3.11.0.

1.9 KiB Raw Blame History