# Metadata in documents

**URL:** <https://talk.commonmark.org/t/metadata-in-documents/721>\
**Category:** Extensions\
**Created:** [September 28, 2014, 1:02am UTC](https://talk.commonmark.org/t/metadata-in-documents/721 "2014-09-28T01:02:46Z")\
**Posts on this page:** 1\
**Showing post:** 41

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**Author:** ![mofosyne](https://cdn.commonmark.org/user_avatar/talk.commonmark.org/mofosyne/32/1438_2.png) [@mofosyne](https://talk.commonmark.org/u/mofosyne)\
**Post date:** [November 13, 2014, 8:53am UTC](https://talk.commonmark.org/t/metadata-in-documents/721/41 "2014-11-13T08:53:21Z")

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It would be good to have a list of YAML capabilities to support natively. I can see binary data being useful in certain context.

Well, if you can get a list of core features that needs to be kept, then that can be a start (And maybe we can forward that to either YAML or diet-YAML team.

A good yardstick could perhaps be if it can convert from/to json/json5 at the least (if I remember json is not very large of a specification).

* * *

Alternative proposed name for this stripped down YAML:

cYAML - Core YAML - C YAML : Small fast minimally specced YAML with fast C reference parser. (I think at minimum, you should be able to convert between JSON and YAML)

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