Re: ANN: Dogelog Player 1.2.4 (Non-Backtracking Hashtable)

Dear All,
 
We are happy to announce a new edition of the Dogelog player:
 
- New library(misc/dict):
   We have moved some predicates from the library(misc/json)
into our own library(misc/dict).  We made sure that the data structure
of the Prolog dicts now follows the input order semantics.
 
- New library(util/hash):
   To enable the implementation of hash tables, Novacore
now has a term_hash/2 predicate.  The implementation differs from the
Prolog dict in that change_arg/3 is used for destructive updates.  We
have also dispensed with the input order.
 
- Improved library(sequence):
   Hash tables can easily be used to model sets of keys,
for example by using the value "true" as an indicator. This allowed us
to re-implement the distinct/1 predicate.
The use of numbervars/3 ensures that key variants are identified.