module Precious
  module Helpers
    # Extract the path string that Gollum::Wiki expects
    def extract_path(file_path)
      return nil if file_path.nil?
      last_slash = file_path.rindex("/")
      if last_slash
        file_path[0, last_slash]
      end
    end

    # Extract the 'page' name from the file_path
    def extract_name(file_path)
      ::File.basename(file_path)
    end

    def sanitize_empty_params(param)
      [nil,''].include?(param) ? nil : CGI.unescape(param)
    end
  end
end