# ExampleProgramStandardInput.py
#
#   Copyright (C) 2006 CCLRC, Graeme Winter
#
#   This code is distributed under the BSD license, a copy of which is
#   included in the root directory of this package.
#
# 27/MAR/06
#
# An example program to test input, output, job control etc. in the new
# XIA. This program will test the standard input handling. It will write
# "Hello, ${user input}!" over and over until user input is ^D or "quit".

import time
import sys

__doc__ = '''A small program which will write output to the standard output
every so often, for testing of the XIA core.'''

def ep(message, times, spacing):
  '''Write a message $message to the screen $times times with spacing of
  $spacing seconds.'''

  for i in range(times):
    sys.stdout.write('%s\n' % message)
    sys.stdout.flush()
    time.sleep(spacing)

def run():
  '''Read a line of input then write that out again 10 times, unless line
  is EOF or "quit".'''
  while True:
    input = sys.stdin.readline()[:-1]
    if not input:
      return
    if input == "quit":
      return
    ep('Hello, %s!' % input, 10, 1)

if __name__ == '__main__':
  run()