extract links (URLs), with nokogiri in ruby, from a href html tags?
You can do it like this:
doc = Nokogiri::HTML.parse(<<-HTML_END)<div class="heat"> <a href='http://example.org/site/1/'>site 1</a> <a href='http://example.org/site/2/'>site 2</a> <a href='http://example.org/site/3/'>site 3</a></div><div class="wave"> <a href='http://example.org/site/4/'>site 4</a> <a href='http://example.org/site/5/'>site 5</a> <a href='http://example.org/site/6/'>site 6</a></div>HTML_ENDl = doc.css('div.heat a').map { |link| link['href'] }This solution finds all anchor elements using a css selector and collects their href attributes.