You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: ruby2html.rb
    path of file: ./repos/ruby-packer/ruby/sample/ripper
    
    the code of the file until where you have to start completion: #!/usr/bin/env ruby
# $originalId: ruby2html.rb,v 1.2 2005/09/23 22:53:47 aamine Exp $

TEMPLATE_LINE = __LINE__ + 2
TEMPLATE = <<-EndTemplate
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=<%= encoding %>">
<% if css %>
  <link rel="stylesheet" type="text/css" href="<%= css %>">
<% end %>
  <title><%= File.basename(f.path) %></title>
</head>
<body>
<pre>
<%
    if print_line_number
      Ruby2HTML.compile(f).each_with_index do |l
    
def main
  encoding = 'us-ascii'
  css = nil
  print_line_number = false
  parser = OptionParser.new
  parser.banner = "Usage: #{File.basename($0)} [-l] [<file>...]"
  parser.on('--encoding=NAME', 'Character encoding [us-ascii].') {|name|
    encoding = name
  }
  parser.on('--css=URL', 'Set a link to CSS.') {|url|
    css = url
  }
  parser.on('-l', '--line-number', 'Show line number.') {
    print_line_number = true
  }
  parser.on('--help', 'Prints this message and quit.') {
    puts parser.help
    exit 0
  }
  begin
    parser.parse!
  rescue OptionParser::ParseError => err
    $stderr.puts err
    $stderr.puts parser.help
    exit 1
  end