module Nokogiri::XML::Searchable

}.new)
end
node_set.find_all { |node| node['some_attribute'] =~ /#{regex}/ }
def regex node_set, regex
node.xpath('.//title[regex(., "\w+")]', Class.new {

argument list. For example:
you pass in. Note that this class may appear anywhere in the
current matching NodeSet. Any other arguments are ones that
to define. The first argument to the method will be the
functions create a class and implement the function you want
Custom XPath functions may also be defined. To define custom

node.xpath('.//address[@domestic=$value]', nil, {:value => 'Yes'})

A hash of variable bindings may also be appended to the namespace bindings. For example:

node.xpath('.//xmlns:name', node.root.namespaces)
node.xpath('.//foo:name', {'foo' => 'http://example.org/'})

A hash of namespace bindings may be appended. For example:

node.xpath('.//title')

queries.
Search this node for XPath +paths+. +paths+ must be one or more XPath

call-seq: xpath *paths, [namespace-bindings, variable-bindings, custom-handler-class]
##

def xpath(*args)
  paths, handler, ns, binds = extract_params(args)
  xpath_internal self, paths, handler, ns, binds
end