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Using the low-level parser
==========================
The following code snippet shows how to use the low-level :cpp:class:`~orcus::json_parser`
class by providing an own handler class and passing it as a template argument:
.. literalinclude:: ../../../doc_example/json_parser_1.cpp
:language: C++
The parser constructor expects the char array, its length, and the handler
instance. The base handler class :cpp:class:`~orcus::json_handler` implements
all required handler methods. By inheriting from it, you only need to
implement the handler methods you need. In this example, we are only
implementing the :cpp:func:`~orcus::json_handler::object_key`,
:cpp:func:`~orcus::json_handler::string`, and :cpp:func:`~orcus::json_handler::number`
methods to process object key values, string values and numeric values,
respectively. Refer to the :cpp:class:`~orcus::json_handler` class definition
for all available handler methods.
Executing this code will generate the following output:
.. code-block:: text
JSON string: {"key1": [1,2,3,4,5], "key2": 12.3}
object key: key1
number: 1
number: 2
number: 3
number: 4
number: 5
object key: key2
number: 12.3
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