How do I do a regex search in Nokogiri for text that matches a certain beginning?

Question

Given:

require \'rubygems\'
require \'nokogiri\'
value = Nokogiri::HTML.parse(<<-HTML_END)
\"

  
A         


        

Answer 1

Use the xpath function starts-with:

value.xpath('//p[starts-with(@id, "para-")]').each { |x| puts x['id'] }