Extract piece of an HTML fragment with Nokogiri

html-extract.rb

#!/bin/env ruby19

require 'nokogiri'

# Nokogiri should have this as well
REPL =  {
  '&lt;' => '<',
  '&le;' => '<=',
  '&gt;' => '>',
  '&ge;' => '>=',
  '&amp;' => '&',
}

def REPL.unescape(s)
  s.gsub /&\w+;/ do |m|
    self[m] || m
  end
end

str="&lt;p&gt;\n  &lt;strong&gt;Location:&lt;/strong&gt; Columbus, Ohio\n&lt;/p&gt;\n\n&lt;"

s2 = REPL.unescape(str)
# p s2

doc = Nokogiri.HTML s2

puts doc
# p doc

puts 'elements'

doc.xpath('//p[strong]/text()').each do |elm|
  p elm
end