module Nokogiri::CSS::XPathVisitor::BuiltinsConfig

Enum to direct XPathVisitor when to use Nokogiri builtin XPath functions.



Always use Nokogiri builtin functions whenever possible. This is probably only useful for testing.


Never use Nokogiri builtin functions, always generate vanilla XPath 1.0 queries. This is the default when calling Nokogiri::CSS.xpath_for directly.


Only use Nokogiri builtin functions when they will be faster than vanilla XPath. This is the behavior chosen when searching for CSS selectors on a Nokogiri document, fragment, or node.