[chaley]

Here is a template that (I think) follows your rules. I can't test it because I don't have real data. You can test it in the calibre template tester to see if it generates the right output for various books.

There are two parts to this template, a stored python template and the template to put in the plugboard. The stored template, has_index_over_ten(), is in the attached template export file. Note that you can make the plugboard template a stored template as well, which would make editing easier.

I could test this if you give me a subset of your metadata.db that has all the permutations.

program:

	# First find the parameters
	has_series = $series != '';
	has_stk_series = $#stk_series != '';
	has_series_universe = $#series_universe != '';
	has_original_title = $#original_title != '';

	# Check if the various series indices are larger than 10.
	# First, the normal series
	series_greater_than_10 = has_index_over_ten('series', $series);

	# Now check stk_series
	stk_series_greater_than_10 = has_index_over_ten('#stk_series', $stk_series);

	# Lastly, series_universe
	series_universe_greater_than_10 = has_index_over_ten('#series_universe', $series_universe);


	# Now select the right template.
	# First check if none of the special cases apply -- the book doesn't
	# have any of series_universe, stk_series, or normal series
	if ! (has_series_universe || has_stk_series || has_series) then
		if has_original_title then
			return $#original_title
		else
			return $title
		fi
	fi;

	# A special case applies.
	# Check series_universe first.
	if has_series_universe then
		if series_universe_greater_than_10 then
			return template('{#series_universe}{#series_universe_index:0>5.2f| [|] }{title}')
		else
			return template('{#series_universe}{#series_universe_index| [|]}{title}')
		fi
	fi;

	# No series universe. Check stk_series
	if has_stk_series then
		if stk_series_greater_than_10 then
			return template('{#stk_series}{#stk_series_index:0>5.2f| [|] }{title}')
		else
			return template('{#stk_series}{#stk_series_index| -|- }{title}')
		fi
	fi;

	# No series_universe or stk_series. Because of the test above we know 
	# it has a series so ...
	if series_greater_than_10 then
		return template('{series}{series_index:0>5.2f| [|] }{title}') 
	else
		return template('{series}{series_index| [|]}{title}')
	fi