module Roda::RodaPlugins::ViewOptions::InstanceMethods

def append_view_subdir(v)

view subdirectory.
the view subdirectory to a subdirectory of the existing
If there has already been a view subdirectory set, this sets
been a view subdirectory set, this just sets it to the argument.
Append a view subdirectory to use. If there hasn't already 
def append_view_subdir(v)
  if subdir = @_view_subdir
    set_view_subdir("#{subdir}/#{v}")
  else
    set_view_subdir(v)
  end
end