RDQL / QL development
- Easy: Variable bindings
- (Easy: optional triples, one way - TODO)
- Medium: tokeniser and parser (lex and yacc)
- Medium: writing it in C
- Medium: query engine over TriplesMatch
- Medum, but dull: constraint evaluation
- (Medium: multiple sources - TODO)
- Hard: thinking about the APIs
- Hard: planning for future QLs, functionality