3 push!(LOAD_PATH, pwd(), "/usr/share/julia/base")
15 function eval_ast(ast, env)
16 if typeof(ast) == Symbol
18 elseif isa(ast, Array) || isa(ast, Tuple)
19 map((x) -> EVAL(x,env), ast)
21 [EVAL(x[1],env) => EVAL(x[2], env) for x=ast]
27 function EVAL(ast, env)
28 if !isa(ast, Array) return eval_ast(ast, env) end
32 env_set(env, ast[2], EVAL(ast[3], env))
33 elseif symbol("let*") == ast[1]
35 for i = 1:2:length(ast[2])
36 env_set(let_env, ast[2][i], EVAL(ast[2][i+1], let_env))
40 el = eval_ast(ast, env)
41 f, args = el[1], el[2:end]
52 repl_env = Env(nothing,
53 Dict{Any,Any}(:+ => +,
58 return PRINT(EVAL(READ(str), repl_env))
62 line = readline_mod.do_readline("user> ")
63 if line === nothing break end
67 if isa(e, ErrorException)
68 println("Error: $(e.msg)")
70 println("Error: $(string(e))")
72 bt = catch_backtrace()
73 Base.show_backtrace(STDERR, bt)