[kjdavies]

Originally Posted by chaley

This avoids any extraneous periods by including a preceeding dot only if the column has a value:

{#titlecount:}{#pagecount:|.|}{series:|.|}{#pubseries:|.|}{#pubseries_index|.|}

However, I prefer this GPM template that (I think) makes the intentions explicit.

program:
	list_join('.', $#titlecount, '.', $#pagecount, '.', $series, '.',$#pubseries, '.', $#pubseries_index, '.')

The above can be written as a TPM template if it is embedded with other template expressions:

{:'list_join('.', $#titlecount, '.', $#pagecount, '.', $series, '.',$#pubseries, '.', $#pubseries_index, '.')'}

How about

program:
    '.'.join(filter(None, ($#titlecount,$#pagecount,$series,$#pubseries,$#pubseries_index)))

? I think this should make a string concatenating only the non-None values in the list, and prevent leading or trailing '.'.