Method: Nokogiri::XML::Searchable#ancestor!

Defined in:: lib/ryoba/nokogiri/xml/searchable.rb

#ancestor!(selector = nil) ⇒ `Nokogiri::XML::Element`

Like Searchable#ancestors!, but returns only the first matching ancestor.

Examples:

xml = Nokogiri::XML("  <body>\n    <div id=\"a\">\n      <div id=\"b\">\n        <img src=\"cat.jpg\">\n      </div>\n    </div>\n  </body>\n")

xml.at("img").ancestor!("div")  # == Node div#b
xml.at("img").ancestor!("#a")   # == Node div#a
xml.at("img").ancestor!("#z")   # raise error

Parameters:

selector (String) (defaults to: nil)

Returns:

(Nokogiri::XML::Element)

Raises:

(Ryoba::Error) —

if no ancestors match selector



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# File 'lib/ryoba/nokogiri/xml/searchable.rb', line 130

def ancestor!(selector = nil)
  self.ancestors!(selector).first
end