Risp

A rusty lisp inspired by Clojure

Usage in Rust

  extern crate risp;
  
  use risp::eval_risp_script;
  use risp::types::RispType::Int;
  use risp::core::create_core_environment;
  
  #[test]
  fn test_minimal_example() {
     let mut env = create_core_environment();
     env.set("var", Int(2));
  
     let risp_script = "(+ 40 var)";
     let result = eval_risp_script(risp_script, &mut env);
  
     assert_eq!(result, Ok(Int(42)));
  }

Risp example showing every existing feature

  (def myInt 2)
  
  (def myVector [1 myInt 3])
  
  (def repeated (rep 2 1 2 3))
  
  {:added       (+ myInt 20)
   :multiplied  (* myInt 20)
   :repeated    repeated
   :myVector    myVector
   :myMap       {:key myInt}
   :myString    "Hello"
   :myDoResult  (do
                  (def myInt2 20)
                  (+ myInt myInt2))}

Goals

• Simple configuration language
• Subset of Clojure

Non-Goals

• Performance
• Completeness