Format of epsilon symbol from lt-print
This is a bit bikeshedding, but I think that we should change the epsilon symbol in lt-print from ε either to <ε> or to @0@. It probably needs to change if we're ever going to deal with Greek, although it's very low priority.
My feeling is that <ε> is more Apertiumy. This could also be updated in HFST's hfst-txt2fst tool so that the -e option is not necessary.
Though we do already have lt-print -H to switch from ε to @0@.
I suppose one way to handle the Greek issue in lt-comp would be to have an option to tell it to use HFST symbols instead of lt-print symbols so that it won't interpret ε.
I just ran into this issue, so now in the branch of #119 lt-comp -H will make ε be a character rather than being treated as an empty transition.