MkMorphoDict: Extracting a minimal morphological dictionary from an existing GF dictionary.

Aarne Ranta 2020-03-02

principles:

There should be a single source for each lemgram (i.e. inflection table of a word)
Functions names should be easy to guess: baseform_Category (but avoiding accidental errors if this is not a unique key)

Hence,

Functions are 1-to-1 with lemgrams, i.e. inflection tables, thus
     - no sense distinctions
     - no subcategorizations
     - no variants

Functionname = baseform_category, with exceptions
     - same baseform_Category, different inflection tables: lie_1_V, lie_2_V
     - words that have non-ident characters: 'bird\'s-eye_A'
     - words that start with non-letters: W_'tween_Adv

Example run, English:

   gf -make ../english/DictEng.gf
   runghc MkMorphodict.hs DictEngAbs.pgf MorphoDictEng

Result: 64923 ->  56599 functions, of which 21679 could be compounds

Swedish, using a dump of SALDO (not available in these sources)

  cd saldo/
  runghc SaldoGF.hs
  # combine abs.tmp with Saldo.header to obtain Saldo.gf
  # combine cnc.tmp with SaldoSwe.header to obtain SaldoSwe.gf
  gf -make SaldoSwe.gf
  cd ..
  runghc MkMorphodict.hs saldo/Saldo.pgf MorphoDictSwe