mndrix/djson

Declarative JSON library for Prolog

djson's Issues

write README and documentation

Explain briefly how this library is to be used. Explain why anyone would want to use it instead of library(http/json) and library(json_convert) (more declarative, more duck-typed).

support nested JSON objects

The current test suite only covers shallow objects. Make sure that one can nest objects inside arrays and vice versa. Also make sure that nested Prolog terms correctly serialize and parse when they consist of separately defined components.

:- multifile djson:json//1.
djson:json(person(Name,Age)) -->
    json({name:Name, age: Age}).
djson:json(city(Name, Mayor)) -->
    json({name: Name, mayor: Mayor)}.
?- json_term(Json, city(denver,person(hickenlooper,61))).
Json = '{"name":"denver","mayor":{"name":"hickenlooper","age":61}}'.

easy accessors and partial unification for JSON terms

Make it easier to work with JSON terms by adding key-value accessors and supporting partial unification with those same terms. That way, one can parse arbitrary JSON into native JSON terms. Then unify to extract the value of the x and y keys.

Work this is already done in a PriceCharting scraper. Just clean it up for public release.