📝 add more API documentation

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Niels Lohmann 2020-08-14 10:48:32 +02:00
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10 changed files with 150 additions and 9 deletions

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@ -8,11 +8,13 @@ INSERT INTO searchIndex(name, type, path) VALUES ('array', 'Function', 'api/basi
INSERT INTO searchIndex(name, type, path) VALUES ('array_t', 'Type', 'api/basic_json/array_t/index.html');
INSERT INTO searchIndex(name, type, path) VALUES ('at', 'Method', 'api/basic_json/at/index.html');
INSERT INTO searchIndex(name, type, path) VALUES ('back', 'Method', 'api/basic_json/back/index.html');
INSERT INTO searchIndex(name, type, path) VALUES ('basic_json', 'Class', 'api/basic_json/index.html');
INSERT INTO searchIndex(name, type, path) VALUES ('basic_json', 'Constructor', 'api/basic_json/basic_json/index.html');
INSERT INTO searchIndex(name, type, path) VALUES ('begin', 'Method', 'api/basic_json/begin/index.html');
INSERT INTO searchIndex(name, type, path) VALUES ('binary', 'Function', 'api/basic_json/binary/index.html');
INSERT INTO searchIndex(name, type, path) VALUES ('boolean_t', 'Type', 'api/basic_json/boolean_t/index.html');
INSERT INTO searchIndex(name, type, path) VALUES ('cbegin', 'Method', 'api/basic_json/cbegin/index.html');
INSERT INTO searchIndex(name, type, path) VALUES ('cbor_tag_handler_t', 'Enum', 'api/basic_json/cbor_tag_handler_t/index.html');
INSERT INTO searchIndex(name, type, path) VALUES ('cend', 'Method', 'api/basic_json/cend/index.html');
INSERT INTO searchIndex(name, type, path) VALUES ('clear', 'Method', 'api/basic_json/clear/index.html');
INSERT INTO searchIndex(name, type, path) VALUES ('contains', 'Method', 'api/basic_json/contains/index.html');
@ -27,10 +29,12 @@ INSERT INTO searchIndex(name, type, path) VALUES ('empty', 'Method', 'api/basic_
INSERT INTO searchIndex(name, type, path) VALUES ('end', 'Method', 'api/basic_json/end/index.html');
INSERT INTO searchIndex(name, type, path) VALUES ('erase', 'Method', 'api/basic_json/erase/index.html');
INSERT INTO searchIndex(name, type, path) VALUES ('error_handler_t', 'Enum', 'api/basic_json/error_handler_t/index.html');
INSERT INTO searchIndex(name, type, path) VALUES ('exception', 'Class', 'api/basic_json/exception/index.html');
INSERT INTO searchIndex(name, type, path) VALUES ('find', 'Method', 'api/basic_json/find/index.html');
INSERT INTO searchIndex(name, type, path) VALUES ('flatten', 'Method', 'api/basic_json/flatten/index.html');
INSERT INTO searchIndex(name, type, path) VALUES ('front', 'Method', 'api/basic_json/front/index.html');
INSERT INTO searchIndex(name, type, path) VALUES ('basic_json', 'Class', 'api/basic_json/index.html');
INSERT INTO searchIndex(name, type, path) VALUES ('get_allocator', 'Function', 'api/basic_json/get_allocator/index.html');
INSERT INTO searchIndex(name, type, path) VALUES ('input_format_t', 'Enum', 'api/basic_json/input_format_t/index.html');
INSERT INTO searchIndex(name, type, path) VALUES ('insert', 'Method', 'api/basic_json/insert/index.html');
INSERT INTO searchIndex(name, type, path) VALUES ('is_array', 'Method', 'api/basic_json/is_array/index.html');
INSERT INTO searchIndex(name, type, path) VALUES ('is_binary', 'Method', 'api/basic_json/is_binary/index.html');

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@ -0,0 +1,21 @@
# basic_json::cbor_tag_handler_t
```cpp
enum class cbor_tag_handler_t
{
error,
ignore
};
```
This enumeration is used in the [`from_cbor`](from_cbor.md) function to choose how to treat tags:
error
: throw a `parse_error` exception in case of a tag
ignore
: ignore tags
## Version history
- Added in version 3.9.0.

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@ -0,0 +1,65 @@
# basic_json::exception
```cpp
class exception : public std::exception;
```
This class is an extension of [`std::exception`](https://en.cppreference.com/w/cpp/error/exception) objects with a
member `id` for exception ids. It is used as the base class for all exceptions thrown by the `basic_json` class. This
class can hence be used as "wildcard" to catch exceptions, see example below.
```plantuml
std::exception <|-- json::exception
json::exception <|-- json::parse_error
json::exception <|-- json::invalid_iterator
json::exception <|-- json::type_error
json::exception <|-- json::out_of_range
json::exception <|-- json::other_error
interface std::exception {}
class json::exception #FFFF00 {
+ const int id
+ const char* what() const
}
class json::parse_error {
+ const std::size_t byte
}
```
Subclasses:
- `parse_error` for exceptions indicating a parse error
- `invalid_iterator` for exceptions indicating errors with iterators
- `type_error` for exceptions indicating executing a member function with a wrong type
- `out_of_range` for exceptions indicating access out of the defined range
- `other_error` for exceptions indicating other library errors
## Member functions
- **what** - returns explanatory string
## Member variables
- **id** - the id of the exception
## Example
??? example
The following code shows how arbitrary library exceptions can be caught.
```cpp
--8<-- "examples/exception.cpp"
```
Output:
```json
--8<-- "examples/exception.output"
```
## Version history
- Since version 3.0.0.

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@ -53,7 +53,8 @@ Deserializes a given input to a JSON value using the CBOR (Concise Binary Object
: whether to throw exceptions in case of a parse error (optional, `#!cpp true` by default)
`tag_handler` (in)
: how to treat CBOR tags (optional, `error` by default)
: how to treat CBOR tags (optional, `error` by default); see [`cbor_tag_handler_t`](cbor_tag_handler_t.md) for more
information
## Return value

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@ -0,0 +1,15 @@
# basic_json::get_allocator
```cpp
static allocator_type get_allocator();
```
Returns the allocator associated with the container.
## Return value
associated allocator
## Version history
- Unknown.

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@ -52,14 +52,14 @@ Todo
- [**json_pointer**](../json_pointer.md) - JSON Pointer implementation
- json_serializer
- [**error_handler_t**](error_handler_t.md) - type to choose behavior on decoding errors
- cbor_tag_handler_t
- [**cbor_tag_handler_t**](cbor_tag_handler_t.md) - type to choose how to handle CBOR tags
- initializer_list_t
- input_format_t
- [**input_format_t**](input_format_t.md) - type to choose the format to parse
- json_sax_t
### Exceptions
- exception
- [**exception**](exception.md) - general exception of the `basic_json` class
- parse_error
- invalid_iterator
- type_error
@ -225,7 +225,7 @@ Access to the JSON value
## Static functions
- [**meta**](meta.md) - returns version information on the library
- get_allocator - returns the allocator associated with the container
- [**get_allocator**](get_allocator.md) - returns the allocator associated with the container
### Binary formats

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@ -0,0 +1,32 @@
# basic_json::input_format_t
```cpp
enum class input_format_t {
json,
cbor,
msgpack,
ubjson,
bson
};
```
This enumeration is used in the [`sax_parse`](sax_parse.md) function to choose the input format to parse:
json
: JSON (JavaScript Object Notation)
cbor
: CBOR (Concise Binary Object Representation)
msgpack
: MessagePack
ubjson
: UBJSON (Universal Binary JSON)
bson
: BSON (Bin­ary JSON)
## Version history
- Added in version 3.2.0.

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@ -55,7 +55,8 @@ The SAX event lister must follow the interface of `json_sax`.
: SAX event listener
`format` (in)
: the format to parse (JSON, CBOR, MessagePack, or UBJSON) (optional, `input_format_t::json` by default)
: the format to parse (JSON, CBOR, MessagePack, or UBJSON) (optional, `input_format_t::json` by default), see
[`input_format_t`](input_format_t.md) for more information
`strict` (in)
: whether the input has to be consumed completely (optional, `#!cpp true` by default)

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@ -454,7 +454,6 @@ Cannot get value for iterator: Either the iterator belongs to a null value or it
[json.exception.invalid_iterator.214] cannot get value
```
## Type errors
This exception is thrown in case of a type error; that is, a library function is executed on a JSON value whose type does not match the expected semantics.
@ -684,7 +683,6 @@ The dynamic type of the object cannot be represented in the requested serializat
Encapsulate the JSON value in an object. That is, instead of serializing `#!json true`, serialize `#!json {"value": true}`
## Out of range
This exception is thrown in case a library function is called on an input parameter that exceeds the expected range, for instance in case of array indices or nonexisting object keys.

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@ -83,6 +83,7 @@ nav:
- api/basic_json/binary.md
- api/basic_json/boolean_t.md
- api/basic_json/cbegin.md
- api/basic_json/cbor_tag_handler_t.md
- api/basic_json/cend.md
- api/basic_json/clear.md
- api/basic_json/contains.md
@ -97,6 +98,7 @@ nav:
- api/basic_json/end.md
- api/basic_json/erase.md
- api/basic_json/error_handler_t.md
- api/basic_json/exception.md
- api/basic_json/find.md
- api/basic_json/flatten.md
- api/basic_json/from_bson.md
@ -104,6 +106,8 @@ nav:
- api/basic_json/from_msgpack.md
- api/basic_json/from_ubjson.md
- api/basic_json/front.md
- api/basic_json/get_allocator.md
- api/basic_json/input_format_t.md
- api/basic_json/insert.md
- api/basic_json/is_array.md
- api/basic_json/is_binary.md