asdi 0.2.5

Another Simplistic Datalog Implementation (in Rust)
Documentation
# Summary

1. [Introduction]introduction/introduction.md
2. [Datalog]datalog/index.md
   1. [Abstract Syntax]datalog/abstract.md
   2. [Concrete Syntax]datalog/concrete.md
   3. [Relational Algebra Mapping]datalog/relational.md
   4. [Language Features]datalog/features.md
3. [Model API]model/index.md
   1. [Programs]model/programs.md
      1. [Features]model/program_features.md
      2. [Parser]model/program_parser.md
      3. [Visitor]model/program_visitor.md
   2. [Relations]model/relations.md
      1. [Input/Output]model/relation_io.md
   3. [Rules]model/rules.md
   4. [Evaluation]model/eval.md
      1. [Stratification]model/eval_strata.md
   5. [Queries & Views]model/queries.md
      1. [Relational Algebra]model/query_relational.md
   6. [Error Handling]model/errors.md
4. [Model Extension]extension/index.md
   2. [RelationSet I/O]extension/i_o.md
   1. [Writing an Evaluator]extension/evaluator.md
   3. [Writing a Typesetter]extension/formatting.md

5. [Appendix: Abstract Graphical View]reference/abstract_graph.md
6. [Appendix: First-Order Logic & Horn Clauses]reference/logic.md
7. [Appendix: Datalog EBNF]reference/datalog_ebnf.md
8. [Appendix: Relational Algebra EBNF]reference/relational_ebnf.md
9. [Appendix: References]reference/references.md