CXML Node Parent Checker

node_parent_check.rb

#!/usr/bin/env ruby

def check doc, options

  doc.css(options[:query]).each do |node|

    unless node.parent.name == options[:parent]
      puts "#{options[:for]} element not wrapped in #{options[:parent]} at line #{node.line}" unless node.parent.name == options[:or]
    end

  end

end

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)

check doc, :for => "Inline element",        :query => 'c',            :parent => 'p'
check doc, :for => "Space or Tab element",  :query => 'anchor',       :parent => 'p',       :or => 'c'
check doc, :for => "Space or Tab element",  :query => 't, s',         :parent => 'p',       :or => 'c'
check doc, :for => "Image element",         :query => 'image',        :parent => 'context', :or => 'section'
check doc, :for => "Context",               :query => 'context',      :parent => 'section'
check doc, :for => "Section",               :query => 'section',      :parent => 'content'

fpr.close

puts "Done"
puts " "