From 3169070063b2cb877200117ebb384269d73bcb93 Mon Sep 17 00:00:00 2001 From: Joel Martin Date: Mon, 24 Mar 2014 16:32:24 -0500 Subject: Current state of mal for Clojure West lighting talk. --- python/step0_repl.py | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 python/step0_repl.py (limited to 'python/step0_repl.py') diff --git a/python/step0_repl.py b/python/step0_repl.py new file mode 100644 index 0000000..8d42c33 --- /dev/null +++ b/python/step0_repl.py @@ -0,0 +1,32 @@ +import sys, traceback +import mal_readline + +# read +def READ(str): + return str + +# eval +def EVAL(ast, env): + # try it as an expression then a statement + try: + return eval(ast) + except SyntaxError: + exec compile(ast, '', 'single') in globals() + return None + +# print +def PRINT(exp): + return exp + +# repl +def REP(str): + return PRINT(EVAL(READ(str), {})) + +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()[0], sys.exc_info()[1], sys.exc_info()[2])) -- cgit v1.2.3