This implementation is of a small fragment of Hungarian. The most central and perhaps most difficult aspect of Hungarian syntax is a highly ordered left periphery, followed by an unordered post-verbal field. Elements in this left operator field are in a complex arrangement of complementary distributions with one another. For example:

Topics occur first, can be iterated, and is followed by quantifiers. Preverbal markers (i.e. verb markers) occur immediately preverbally. Focussed elements occur immediately preverbally. Wh-elements occur immediately preverbally, but in certain instances can occur in topic position (double wh-questions) or the second wh-element can follow the verb. 'Nem' is in complementary distribution with verbal markers, but can occur both before and after focus. All elements in the left periphery are optional.

In a small step toward covering this distribution, I have covered intransitive, transitive, and ditransitive sentences with topic, focus, and verbal markers. For the time being, I have kept aside the issue of quantifier scope, and the complex distribution of the negative marker nem. A main difficulty that I encountered with this implementation was in the necessary use of multi-sets to describe the ‘free’ word order. This is very much a work in progress, and I hope to be adding refinements to it soon.

The grammar can be found here :openccg:grammars:hungarian.txt