Working Draft 2005-01-18 Oren Ben-Kiki oren@ben-kiki.org Clark Evans cce+yaml@clarkevans.com Brian Ingerson ingy@ttul.org 2001-2005 Oren Ben-Kiki,  Clark Evans,  Brian Ingerson This document may be freely copied provided it is not modified. This specification is a draft reflecting consensus reached by members of the yaml-core mailing list. Any questions regarding this draft should be raised on this list.

URI: tag:yaml.org,2002:null Shorthand: !!null Kind: Scalar. Canonical: ~ Regexp: ~ # (canonical) |null|Null|NULL # (English) | # (Empty) Definition: Devoid of value. A null value is used to indicate the lack of a value. This is typically converted into any native null-like value (e.g., undef in Perl, None in Python). Note that a null is different from an empty string and that a mapping entry with some key and a null value is valid and different from not having that key in the mapping. # A document may be null. --- --- # This mapping has four keys, # one has a value. empty: canonical: ~ english: null ~: null key --- # This sequence has five # entries, two have values. sparse: - ~ - 2nd entry - - 4th entry - Null