The XPath
search prefix to search direct descendants of the current element, ./
The XPath
search prefix to search globally, //
The XPath
search prefix to search direct descendants of the root element, /
The XPath
search prefix to search anywhere in the current element’s subtree, .//
© 2008–2018 Aaron Patterson, Mike Dalessio, Charles Nutter, Sergio Arbeo,
Patrick Mahoney, Yoko Harada, Akinori MUSHA, John Shahid, Lars Kanis
Licensed under the MIT License.
https://nokogiri.org/rdoc/Nokogiri/XML/XPath.html