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# Copyright 2017 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import argparse
import sys
def _convert(to_base, num):
return to_base(int(num, 0))[2:]
def _prettify(bits, options):
result = [options.prefix]
if options.width:
result.append('0' * max(0, options.width - len(bits)))
result.append(bits)
return ''.join(result)
def main(to_base, prefix, unit_name):
parser = argparse.ArgumentParser()
parser.add_argument('number', nargs='*', default=None)
parser.add_argument(
'-w',
type=int,
help=unit_name+' width to format as',
metavar='WIDTH',
dest='width')
parser.add_argument(
'-P',
action='store_const',
const='',
default=prefix,
help='disable `'+prefix+'` prefix',
dest='prefix')
options = parser.parse_args()
if options.number:
for number in options.number:
print(_prettify(_convert(to_base, number), options))
else:
for line in sys.stdin:
print(_prettify(_convert(to_base, line.strip()), options))
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