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38ea8fc3ee
Add helper functions for converting structured key-value data into different formats such as JSON, text pairs, and CSV. Using these functions the resulting output format can be dynamically configured at run-time without the need to duplicate output-generating code for each format type. Also format-specific requirements such as quoting, indentation, and comma-placement are automatically taken care of. Basic API calling sequence: util_fmt_init() => Select output format util_fmt_obj_start() => Start a new object or list util_fmt_pair() => Emit a key-value pair util_fmt_obj_end() => End the most recent object or list util_fmt_exit() => Cleanup Notes: - Supported data elements are objects, lists and key-value pairs (mappings) - Scalars are only supported as part of a mapping Reviewed-by: Jan Höppner <hoeppner@linux.ibm.com> Signed-off-by: Peter Oberparleiter <oberpar@linux.ibm.com> Signed-off-by: Steffen Eiden <seiden@linux.ibm.com>