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#!/usr/bin/python
#

# Copyright (C) 2011 Google Inc.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
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#
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# 1. Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
# IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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"""Tool to format JSON data.

"""

import sys
import simplejson


def main():
  """Main routine.

  """
  if len(sys.argv) > 1:
    sys.stderr.write("Read JSON data from standard input and write a"
                     " formatted version on standard output. There are"
                     " no options or arguments.\n")
    sys.exit(1)

  data = simplejson.load(sys.stdin)
  simplejson.dump(data, sys.stdout, indent=2, sort_keys=True)
  sys.stdout.write("\n")


if __name__ == "__main__":
  main()