Reads a file containing Espresso snippets and turns them into TEA snippets

snippet.rb

#!/usr/bin/env ruby -wKU -rubygems

require "nokogiri"

def to_action(text)
  doc = Nokogiri::XML(text)
  doc.xpath('/action-recipes/snippet').each do |node|
    txt = node.at('text')
    txt.remove
    snippet = txt.content
    node.fragment('<class>TEAforEspresso</class>').parent = node
    Nokogiri::XML::Builder.new do |xml|
      xml.setup {
        xml.action "insert_snippet"
        xml.options {
          xml.dict {
            xml.key "default"
            xml.string {
              xml.cdata snippet
            }
          }
        }
      }
      xml.doc.root.parent = node
    end
    ctx = node.at('syntax-context')
    ctx.remove
    ctx.dup.parent = node.at('setup')
    node.name = 'action'
  end
  doc.serialize
end

if __FILE__ == $PROGRAM_NAME
  puts to_action(ARGF.read)
end