class Haml::Exec::HTML2Haml

def initialize(args)
  super
  @module_opts = {}
  begin
    require 'haml/html'
  rescue LoadError => err
    dep = err.message.scan(/^no such file to load -- (.*)/)[0]
    puts "Required dependency #{dep} not found!"
    exit 1
  end
end

def process_result
  super
  input = @options[:input]
  output = @options[:output]
  @module_opts[:rhtml] ||= input.respond_to?(:path) && input.path =~ /\.(rhtml|erb)$/
  @module_opts[:rhtml] &&= @options[:no_rhtml] != false
  output.write(::Haml::HTML.new(input, @module_opts).render)
end

def set_opts(opts)
  opts.banner = <<END
 html2haml [options] [INPUT] [OUTPUT]
ption: Transforms an HTML file into corresponding Haml code.
s:
  opts.on('-r', '--rhtml', 'Parse RHTML tags.') do
    @module_opts[:rhtml] = true
  end
  opts.on('--no-rhtml', "Don't parse RHTML tags.") do
    @options[:no_rhtml] = true
  end
  opts.on('-x', '--xhtml', 'Parse the input using the more strict XHTML parser.') do
    @module_opts[:xhtml] = true
  end
  super
end