Module:Template translation

local p = {}

function p.renderTranslatedTemplate(frame, template)

   --[[ If on a translation subpage (like Foobar/de), this function renders
       a given template in the same language, if the translation is available.
       Otherwise, the template is rendered in its default language, without
       modification.]]
   
   local langcode = 
   
   -- Get the last subpage
   local subpage = mw.title.getCurrentTitle().subpageText
   
   --[[ If the subpage is a valid language code, check if a translation of the
       template exists in that language; if so, put it in langcode ]]
   
   if ( mw.language.isValidCode( subpage ) )
   then
       local translation = mw.title.new( template..'/'..subpage, 'Template' )
       if ( translation.id ~= 0)
       then
           langcode='/'..subpage
       end
   end

   -- Render the template
   frame:expandTemplate{ title = template..langcode, args = frame.args }
   

end

return p