I have tried it with the period both before and after. My variable - YEAR - gets nothing with the dot before - as expected - and later calculations using YEAR fall over. With the dot after YEAR still gets my input preceded by 41 characters. Further, I cannot get the emulator back to where it was to rerun the tests. Accoding to the documentation a dot after the variable will take anything after the first delimiter (a space in the case of Pull Year .). As there is nothing after my 2314, apart from <enter> the dot gets nothing but I was still having the leading spaces as though they were part of my data entry which had been nothing more than 2, 0, 1 and 4 followed by <enter>. Even if I manually add spaces before the year I can no longer replicate the problem so I guess Hummingbird didn't actually put spaces there but some non-display characters.
The problem I have is that people can explain things quickly but I can only comprehend slowly.