# File lib/rack/builder.rb, line 27 def self.parse_file(config, opts = Server::Options.new) options = {} if config =~ /\.ru$/ cfgfile = ::File.read(config) if cfgfile[/^#\\(.*)/] && opts options = opts.parse! $1.split(/\s+/) end cfgfile.sub!(/^__END__\n.*/, '') app = eval "Rack::Builder.new {( " + cfgfile + "\n )}.to_app", TOPLEVEL_BINDING, config else require config app = Object.const_get(::File.basename(config, '.rb').capitalize) end return app, options end