YAML

YAML is a human-readable data serialization format that takes concepts from programming languages such as C, Perl, and Python, and ideas from XML and the data format of electronic mail. It is available for several programming languages.

YAML is a recursive acronym for "YAML Ain't Markup Language". Early in its development, YAML was said to mean "Yet Another Markup Language" but was retronymed to distinguish its purpose as data-oriented, rather than document markup.