class Haml::Exec::Haml

def set_opts(opts)
  super
  opts.on('-t', '--style NAME',
          'Output style. Can be indented (default) or ugly.') do |name|
    @options[:for_engine][:ugly] = true if name.to_sym == :ugly
  end
  opts.on('-f', '--format NAME',
          'Output format. Can be xhtml (default), html4, or html5.') do |name|
    @options[:for_engine][:format] = name.to_sym
  end
  opts.on('-e', '--escape-html',
          'Escape HTML characters (like ampersands and angle brackets) by default.') do
    @options[:for_engine][:escape_html] = true
  end
  opts.on('-q', '--double-quote-attributes',
          'Set attribute wrapper to double-quotes (default is single).') do
    @options[:for_engine][:attr_wrapper] = '"'
  end
  opts.on('-r', '--require FILE', "Same as 'ruby -r'.") do |file|
    @options[:requires] << file
  end
  opts.on('-I', '--load-path PATH', "Same as 'ruby -I'.") do |path|
    @options[:load_paths] << path
  end
  unless ::Haml::Util.ruby1_8?
    opts.on('-E ex[:in]', 'Specify the default external and internal character encodings.') do |encoding|
      external, internal = encoding.split(':')
      Encoding.default_external = external if external && !external.empty?
      Encoding.default_internal = internal if internal && !internal.empty?
    end
  end
  opts.on('--debug', "Print out the precompiled Ruby source.") do
    @options[:debug] = true
  end
end