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mirror of https://github.com/kanaka/mal.git synced 2024-11-11 08:56:41 +03:00
mal/python/step0_repl.py

30 lines
540 B
Python

import sys, traceback
import mal_readline
# read
def READ(str):
return str
# eval
def EVAL(ast, env):
#print("EVAL %s" % printer._pr_str(ast))
return ast
# print
def PRINT(exp):
return exp
# repl
def REP(str):
return PRINT(EVAL(READ(str), {}))
# repl loop
while True:
try:
line = mal_readline.readline("user> ")
if line == None: break
if line == "": continue
print(REP(line))
except Exception as e:
print("".join(traceback.format_exception(*sys.exc_info())))