[jackhill/mal.git] / ruby / step0_repl.rb

require_relative "mal_readline"

# read
def READ(str)
    return str
end

# eval
def EVAL(ast, env)
    return ast
end

# print
def PRINT(exp)
    return exp
end

# repl
def REP(str)
    return PRINT(EVAL(READ(str), {}))
end

# repl loop
while line = _readline("user> ")
    puts REP(line)
end
Commit	Line	Data
107d9694	1	require_relative "mal_readline"
f705f0fc JM	2
	3	# read
	4	def READ(str)
	5	return str
	6	end
	7
	8	# eval
	9	def EVAL(ast, env)
	10	return ast
	11	end
	12
	13	# print
	14	def PRINT(exp)
	15	return exp
	16	end
	17
	18	# repl
	19	def REP(str)
	20	return PRINT(EVAL(READ(str), {}))
	21	end
	22
86b689f3	23	# repl loop
718887c3	24	while line = _readline("user> ")
f705f0fc JM	25	puts REP(line)
f705f0fc JM	26	end