[jackhill/mal.git] / coffee / step0_repl.coffee

readline = require "./node_readline.coffee"

# read
READ = (str) -> str

# eval
EVAL = (ast, env) -> ast

# print
PRINT = (exp) -> exp

# repl
rep = (str) -> PRINT(EVAL(READ(str), {}))

# repl loop
while (line = readline.readline("user> ")) != null
  continue if line == ""
  console.log rep line

# vim: ts=2:sw=2
Commit	Line	Data
891c3f3b JM	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