def func(self):
        caller = self.caller
        switches = self.switches

        if not self.args:
            caller.msg("Usage: @find <string> [= low [-high]]")
            return

        searchstring = self.lhs
        low, high = 1, ObjectDB.objects.all().order_by("-id")[0].id
        if self.rhs:
            if "-" in self.rhs:
                # also support low-high syntax
                limlist = [part.lstrip("#").strip() for part in self.rhs.split("-", 1)]
            else:
                # otherwise split by space
                limlist = [part.lstrip("#") for part in self.rhs.split(None, 1)]
            if limlist and limlist[0].isdigit():
                low = max(low, int(limlist[0]))
            if len(limlist) > 1 and limlist[1].isdigit():
                high = min(high, int(limlist[1]))
        low = min(low, high)
        high = max(low, high)

        is_dbref = utils.dbref(searchstring)
        is_player = searchstring.startswith("*")

        restrictions = ""
        if self.switches:
            restrictions = ", %s" % (",".join(self.switches))

        if is_dbref or is_player:

            if is_dbref:
                # a dbref search
                result = caller.search(searchstring, global_search=True, quiet=True)
                string = "{wExact dbref match{n(#%i-#%i%s):" % (low, high, restrictions)
            else:
                # a player search
                searchstring = searchstring.lstrip("*")
                result = caller.search_player(searchstring, quiet=True)
                string = "{wMatch{n(#%i-#%i%s):" % (low, high, restrictions)

            if "room" in switches:
                result = result if inherits_from(result, ROOM_TYPECLASS) else None
            if "exit" in switches:
                result = result if inherits_from(result, EXIT_TYPECLASS) else None
            if "char" in switches:
                result = result if inherits_from(result, CHAR_TYPECLASS) else None

            if not result:
                string += "\n   {RNo match found.{n"
            elif not low <= int(result[0].id) <= high:
                string += "\n   {RNo match found for '%s' in #dbref interval.{n" % (searchstring)
            else:
                result=result[0]
                string += "\n{g   %s - %s{n" % (result.get_display_name(caller), result.path)
        else:
            # Not a player/dbref search but a wider search; build a queryset.
            # Searchs for key and aliases
            if "exact" in switches:
                keyquery = Q(db_key__iexact=searchstring, id__gte=low, id__lte=high)
                aliasquery = Q(db_tags__db_key__iexact=searchstring,
                               db_tags__db_tagtype__iexact="alias",id__gte=low, id__lte=high)
            else:
                keyquery = Q(db_key__istartswith=searchstring, id__gte=low, id__lte=high)
                aliasquery = Q(db_tags__db_key__istartswith=searchstring,
                               db_tags__db_tagtype__iexact="alias", id__gte=low, id__lte=high)

            results = ObjectDB.objects.filter(keyquery | aliasquery).distinct()
            nresults = results.count()

            if nresults:
                # convert result to typeclasses.
                results = [result for result in results]
                if "room" in switches:
                    results = [obj for obj in results if inherits_from(obj, ROOM_TYPECLASS)]
                if "exit" in switches:
                    results = [obj for obj in results if inherits_from(obj, EXIT_TYPECLASS)]
                if "char" in switches:
                    results = [obj for obj in results if inherits_from(obj, CHAR_TYPECLASS)]
                nresults = len(results)

            # still results after type filtering?
            if nresults:
                if nresults > 1:
                    string = "{w%i Matches{n(#%i-#%i%s):" % (nresults, low, high, restrictions)
                    for res in results:
                        string += "\n   {g%s - %s{n" % (res.get_display_name(caller), res.path)
                else:
                    string = "{wOne Match{n(#%i-#%i%s):" % (low, high, restrictions)
                    string += "\n   {g%s - %s{n" % (results[0].get_display_name(caller), results[0].path)
            else:
                string = "{wMatch{n(#%i-#%i%s):" % (low, high, restrictions)
                string += "\n   {RNo matches found for '%s'{n" % searchstring

        # send result
        caller.msg(string.strip())
Search functionality
dataset/ETHPy150Open evennia/evennia/evennia/commands/default/building.py/CmdFind.func