coffee/step0_repl.coffee

   1 readline = require "./node_readline.coffee"
   2
   3 # read
   4 READ = (str) -> str
   5
   6 # eval
   7 EVAL = (ast, env) -> ast
   8
   9 # print
  10 PRINT = (exp) -> exp
  11
  12 # repl
  13 rep = (str) -> PRINT(EVAL(READ(str), {}))
  14
  15 # repl loop
  16 while (line = readline.readline("user> ")) != null
  17   continue if line == ""
  18   console.log rep line
  19
  20 # vim: ts=2:sw=2