Niels Lohmann
a47170346a
* docs: new design for the documentation site Apply the brand to the Material for MkDocs site: Inter and JetBrains Mono served by the site (upright and real italic), brand colours, blue header band with the syntax pattern, wordmark in the header, new home page (hero, cards, animated feature tour), 404 page, polish for tabs, search, footer, focus rings, tables and code blocks, and theme features (code copy, previous/next footer, TOC follow, search suggestions). Draw the number railroad diagram, the parser callback events and the iterator illustrations as inline SVGs that follow the light and dark scheme. The generator scripts are in docs/mkdocs/scripts/figures; the feature slideshow (json-light.svg, json-dark.svg, replacing json.gif on the home page) is built by docs/mkdocs/scripts/slideshow. Decision nodes in five flowcharts become hexagons, which need far less room. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * docs: add figures, table captions and a macro chooser - Figures with numbered captions: SAX stepper, json_view layout and edit stepper, exception map, JSON pointer and patch walkers, QA pipeline, scaling and binary size charts, roadmap lanes, release timeline, integration decision tree and namespace builder - Table captions (nj-table-caption) on 9 pages - Compile times: modules and PCH charts, filesystem section, re-measured Figure 1, links between features/modules.md and compile_times.md - Interactive macro chooser for features/arbitrary_types.md - Link check: exclude URLs that answer the plugin with 400/401/419 or are dead (customers.md) Signed-off-by: Niels Lohmann <mail@nlohmann.me> * docs: macro chooser generates adl_serializer for non-default-constructible types Signed-off-by: Niels Lohmann <mail@nlohmann.me> * docs: cross-link concept pages and API pages in See also sections Add See also links in both directions between the concept pages (features, home, integration) and the API pages, write API links in code font, give every entry a comment after a dash, and show the callback event figure on the parser callbacks page. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * docs: address review comments on the new design - Home: add a "Latest release" button - Sponsors: update the list and group it by tier - Features: list all feature pages on the index page - Releases: add highlights per release, link the 4.0 roadmap, add the first commit to the timeline - Exceptions: prefix all example messages with the exception name - API: no code font for format names in the See also links of the to_/from_ pages - Merge Patch: show the document before, the patch, and the result - Replace "--" with typographic dashes, mark external links with an icon, center Mermaid diagrams Signed-off-by: Niels Lohmann <mail@nlohmann.me> --------- Signed-off-by: Niels Lohmann <mail@nlohmann.me>
2.2 KiB
2.2 KiB
nlohmann::operator""_json_pointer
json_pointer operator ""_json_pointer(const char* s, std::size_t n);
json_pointer operator ""_json_pointer(const char8_t* s, std::size_t n); // since C++20
This operator implements a user-defined string literal for JSON Pointers. It can be used by adding #!cpp _json_pointer
to a string literal and returns a json_pointer object if no parse error occurred.
It is recommended to bring the operator into scope using any of the following lines:
using nlohmann::literals::operator ""_json_pointer;
using namespace nlohmann::literals;
using namespace nlohmann::json_literals;
using namespace nlohmann::literals::json_literals;
using namespace nlohmann;
This is suggested to ease migration to the next major version release of the library. See
JSON_USE_GLOBAL_UDLS and the
migration guide for details. The operator is
declared in header <nlohmann/json_literals.hpp>, which <nlohmann/json.hpp> includes unless
JSON_NO_AUTOMATIC_UDLS is defined.
Parameters
s(in)- a string representation of a JSON Pointer
n(in)- length of string
s
Return value
json_pointer value parsed from s
Exceptions
The function can throw anything that json_pointer::json_pointer would throw.
Complexity
Linear.
Examples
??? example
The following code shows how to create JSON Pointers from string literals.
```cpp
--8<-- "examples/operator_literal_json_pointer.cpp"
```
Output:
```json
--8<-- "examples/operator_literal_json_pointer.output"
```
See also
json_pointer- type to represent JSON PointersJSON_NO_AUTOMATIC_UDLS- do not include the user-defined string literals automatically- JSON Pointer - the article on JSON Pointer support
Version history
- Added in version 2.0.0.
- Moved to namespace
nlohmann::literals::json_literalsin 3.11.0. - Added
char8_t*overload in version 3.13.0.