Re: [GSoC PATCH v2 2/2] json-writer: describe the usage of jw_* functions

> Provide an overview of the set of functions used for manipulating
> json_writers by describing what functions should be used for each
> JSON-related task.
> 
> Helped-by: Junio C Hamano <gitster@pobox.com>
> Mentored-by Patrick Steinhardt <ps@pks.im>
> Mentored-by: Karthik Nayak <karthik.188@gmail.com>

> Signed-off-by: Lucas Seiki Oshiro <lucasseikioshiro@gmail.com>
> ---
>  json-writer.h | 28 ++++++++++++++++++++++++++++
>  1 file changed, 28 insertions(+)
> 
> diff --git a/json-writer.h b/json-writer.h
> index aa513e86cb..8b7470af67 100644
> --- a/json-writer.h
> +++ b/json-writer.h
> @@ -28,6 +28,34 @@
>   * object/array) -or- by building them inline in one pass.  This is a
>   * personal style and/or data shape choice.
>   *
> + * USAGE:
> + * ======
> + *
> + * - Initialize the json_writer with jw_init.
> + *
> + * - Open an object as the main data structure with jw_object_begin.
> + *   Append a key-value pair to it using the jw_object_<type> functions.
> + *   Conclude with jw_end.
> + *
> + * - Alternatively, open an array as the main data structure with
> + *   jw_array_begin. Append a value to it using the jw_array_<type>
> + *   functions. Conclude with jw_end.
> + *
> + * - Append a new, unterminated array or object to the current
> + *   object using the jw_object_inline_begin_{array, object} functions.
> + *   Similarly, append a new, unterminated array or object to
> + *   the current array using the jw_array_inline_begin_{array, object}
> + *   functions.
> + *
> + * - Append other json_writer as a value to the current array or object
> + *   using the jw_{array, object}_sub_jw functions.
> + *
> + * - Extend the current array with an null-terminated array of strings
> + *   by using jw_array_argv or with a fixed number of elements of a
> + *   array of string by using jw_array_argc_argv.
> + *
> + * - Relase the json_writer after using it by calling jw_release.
> + *
>   * See t/helper/test-json-writer.c for various usage examples.