mal/crystal/step0_repl.cr

#! /usr/bin/env crystal run

require "readline"

# Note:
# Employed downcase names because Crystal prohibits uppercase names for methods

def read(x)
  x
end

def eval(x)
  x
end

def print(x)
  x
end

def rep(x)
  read(eval(print(x)))
end

while line = Readline.readline("user> ")
  puts rep(line)
end