From: Clark C . Evans <cce@cl...>  20011119 07:53:14

A node is the base construct of the YAML information model. For the definition below, both a value and a type family are an ordered set of unicode characters. A node has:  a type family  a value A node pair consists of  a node called "key"  a node called "value" A collection is a node that additionally has:  an unordered (possibly empty) set of node paris such that the value of the key for each pair is unique within the set. This note appears later... The sequence syntax is limited to those collections where the keys are exactly the set of integers 0..N where N >= 0. There is not an information model distinction between a sequence and a mapping; although the default type family for a mapping is "map" and the default type family for a sequence is "seq" Please review, Clark 