YAML::YamlNode#select Method
select
Performs a YPath search, returning qualified nodes.

aYamlYamlNode.select(
  String ypath
)

Parameters
ypath
The YPath statement.
Return Values
A YamlNode or nil if none qualified.

Details
This method is EXPERIMENTAL and much of the YPath syntax isn't supported. YPath is still being defined by YAML implementors and this is all subject to change.