Question
like DOMDocument class in PHP, is there any class in RUBY (i.e the core RUBY), to parse and get node elements value from a HTML Document.
Answer
There is no built-in HTML parser (yet), but some very good ones are available, in particular Nokogiri.
Meta-answer: For common needs like these, I'd recommend checking out the Ruby Toolbox site. You'll notice that Nokogiri is the top recommendation for [HTML parsers](http://ruby- toolbox.com/categories/html_parsing.html)
