rpython/mal_readline.py

   1 #import os, readline as pyreadline
   2 #
   3 #histfile = os.path.expanduser("~/.mal-history")
   4 #
   5 #def init():
   6 #    try:
   7 #        with open(histfile, "r") as hf:
   8 #            for line in hf.readlines():
   9 #                pyreadline.add_history(line.rstrip("\r\n"))
  10 #                pass
  11 #    except IOError:
  12 #        #print("Could not open %s" % histfile)
  13 #        pass
  14 #
  15 #def readline(prompt="user> "):
  16 #    try:
  17 #        line = raw_input(prompt)
  18 #        pyreadline.add_history(line)
  19 #        with open(histfile, "a") as hf:
  20 #            hf.write(line + "\n")
  21 #    except IOError:
  22 #        pass
  23 #    except EOFError:
  24 #        return None
  25 #    return line
  26
  27 import os
  28 def readline(prompt):
  29     res = ''
  30     os.write(1, prompt)
  31     while True:
  32         buf = os.read(0, 255)
  33         if not buf: raise EOFError()
  34         res += buf
  35         if res[-1] == '\n': return res[:-1]
  36