# File lib/asciidoctor/abstract_node.rb, line 342
  def normalize_system_path(target, start = nil, jail = nil, opts = {})
    if start.nil?
      start = @document.base_dir
    end
    if jail.nil? && @document.safe >= SafeMode::SAFE
      jail = @document.base_dir
    end
    PathResolver.new.system_path(target, start, jail, opts)
  end