Giving ngramread a text file where lines are terminiated with space causes models built with this to have a missing symbol. (BER: fixed -- deals with leading and trailing spaces)
Giving ngramread a blank line causes models built with missing symbol (at least in the version I'm using).
Giving ngramprint --ARPA an FST with no symbol tables segfaults
Checking for normalized model is perhaps too exact (allow small delta) (MDR: made --norm_eps a flag for relevant binaries)
ngramread doesn't complain about missing labels if --symbols is passed (e.g. <s> in ARPA format but <S> in symbols file)
ngramread fails if first line isn't blank. Can't read Google ARPA files. OK if first line is \data\?
Editing Google file to fix 10. results in OK read and empty FST.
Perplexity measure on war of worlds corpus gives warning about bad fST (but o.w. seems to work)
ngrammake fails with zero arguments 14. random error message when symbol tables are missing 15. empty or non-coaccess machines give odd errors / segfaults