Thread:User talk:CodeCat/Sort key for Old and Middle French/reply (7)

The sorting code is now in Module:utilities, specifically the  function. You give it a list of category names (in a Lua table) and the language code, and optionally a custom sort key (the one that was provided to the template in the entry, or else nil). And it will return the category names with  added, as well as the appropriate sort key for that entry in the given language. So there is no need for a language-specific module to do this, that would just duplicate the work.