module Hpricot::Container::Trav

def each_hyperlink_uri(base_uri=nil) # :yields: hyperlink, uri

:yields: hyperlink, uri
+each_hyperlink_uri+ doesn't yields href of the BASE element.
HTML BASE element or the argument ((|base_uri|)).
The URI objects are created with a base URI which is given by

It yields Hpricot::Text and URI for each hyperlink.

of A element.
+each_hyperlink_uri+ traverses hyperlinks such as HTML href attribute 
def each_hyperlink_uri(base_uri=nil) # :yields: hyperlink, uri
  base_uri = URI.parse(base_uri) if String === base_uri
  links = []
  each_hyperlink_attribute {|elem, attr, hyperlink|
    if %r{\{http://www.w3.org/1999/xhtml\}(?:base)\z}i =~ elem.name
      base_uri = URI.parse(hyperlink.to_s)
    else
      links << hyperlink
    end
  }
  if base_uri
    links.each {|hyperlink| yield hyperlink, base_uri + hyperlink.to_s }
  else
    links.each {|hyperlink| yield hyperlink, URI.parse(hyperlink.to_s) }
  end
end