for

# File lib/rdoc/parser.rb, line 189
  def self.for top_level, file_name, content, options, stats
    return if binary? file_name

    parser = use_markup content

    unless parser then
      parse_name = file_name

      # If no extension, look for shebang
      if file_name !~ /\.\w+$/ && content =~ %{\A#!(.+)} then
        shebang = $1
        case shebang
        when %{env\s+ruby}, %{/ruby}
          parse_name = 'dummy.rb'
        end
      end

      parser = can_parse parse_name
    end

    return unless parser

    content = remove_modeline content

    parser.new top_level, file_name, content, options, stats
  rescue SystemCallError
    nil
  end