1
1
mirror of https://github.com/kanaka/mal.git synced 2024-11-10 12:47:45 +03:00
mal/rpython/step1_read_print.py
2015-06-11 09:33:12 -05:00

49 lines
1.1 KiB
Python

#import sys, traceback
import mal_readline
import mal_types as types
import reader, printer
# read
def READ(str):
return reader.read_str(str)
# eval
def EVAL(ast, env):
#print("EVAL %s" % printer._pr_str(ast))
return ast
# print
def PRINT(exp):
return printer._pr_str(exp)
# repl
def REP(str):
return PRINT(EVAL(READ(str), {}))
def entry_point(argv):
#mal_readline.init()
while True:
try:
line = mal_readline.readline("user> ")
if line == "": continue
print(REP(line))
except EOFError as e:
break
except reader.Blank:
continue
except types.MalException as e:
print(u"Error: %s" % printer._pr_str(e.object, False))
except Exception as e:
print("Error: %s" % e)
#print("".join(traceback.format_exception(*sys.exc_info())))
return 0
# _____ Define and setup target ___
def target(*args):
return entry_point
# Just run entry_point if not RPython compilation
import sys
if not sys.argv[0].endswith('rpython'):
entry_point(sys.argv)