Detect Nested CXML P or C Nodes

nested_node_detect.rb

#!/usr/bin/env ruby

require 'rubygems'
require 'optparse'
require 'nokogiri'

options = { :log              => $stdout,
            :verbose          => false
          }

opt = OptionParser.new do |opt|
  opt.banner = "Usage: nested_tag_detect [options] <xml>"
  opt.on('--log-file=log file')                     { |log| options[:log] = log }
  opt.on('--v','--verbose')                         { options[:verbose] = true  }
  opt.on_tail('-h', '--help') do
    puts opt
    exit
  end
end

opt.parse!(ARGV)
unless ARGV.size == 1
  puts opt
  exit
end

target_file = ARGV[0]

puts "Checking: #{target_file}"

fpr = File.open(target_file.to_s, "r")
doc = Nokogiri::XML(fpr)

doc.css('p, c').each do |node|

  if node.parent.name == node.name
    puts "Nested node detected at line #{node.line}"
  end

end

fpr.close

puts "Done"
puts " "