json/api/json_sax/parse_error.md

nlohmann::json_sax::parse_error

virtual bool parse_error(std::size_t position,
                         const std::string& last_token,
                         const detail::exception& ex) = 0;

A parse error occurred.

Parameters

position (in)

the position in the input where the error occurs

last_token (in)

the last read token

ex (in)

an exception object describing the error

Return value

Whether parsing should proceed (must return #!cpp false).

Examples

??? example

The example below shows how the SAX interface is used.

```cpp
--8<-- "examples/sax_parse.cpp"
```

Output:

```json
--8<-- "examples/sax_parse.output"
```

See also

• sax_parse - SAX parser
• Parsing and Exceptions - the article on handling parse errors without exceptions

Version history

• Added in version 3.2.0.