libyaml-perl

YAML Ain't Markup Language
YAML is a generic data serialization language that is optimized for human
readability. It can be used to express the data structures of most modern
programming languages (including Perl, of course). YAML supports Unicode
and there are implementations of the parser in many different languages,
making it a rather portable serialization format.
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Please note that the YAML module is currently a deprecated implementation
in Pure Perl, which is probably slow on your system. The authors intend
to change it to just be a front-end interface module for various YAML
implementations. For now, YAML::Any is a module provided for this purpose,
which simply selects the best YAML implementation available.