# File lib/text/format.rb, line 897
897:     def expand(to_expand = nil)
898:       to_expand = @text if to_expand.nil?
899:       if to_expand.class == Array
900:         to_expand.collect { |te| __expand(te) }
901:       else
902:         __expand(to_expand)
903:       end
904:     end