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#!/usr/bin/env python
# -*- mode: python, encoding: utf-8 -*-
# See LICENSE file for copyright and license details.
# Very limited GNU cut.
import sys
delimiter = '\t'
fields = []
complement = False
i, n = 1, len(sys.argv)
while i < n:
arg = sys.argv[i]
if arg == '-d':
i += 1
delimiter = sys.argv[i]
elif arg == '-f':
i += 1
fields += [int(f) - 1 for f in sys.argv[i].split(',')]
elif arg == '--complement':
complement = True
i += 1
fields = set(fields)
def modify(line):
line = line.split(delimiter)
if complement:
line = [line[i] for i in range(len(line)) if i not in fields]
else:
line = [line[i] for i in range(len(line)) if i in fields]
return delimiter.join(line)
data = sys.stdin.read()
data = '\n'.join(modify(line) for line in data.split('\n'))
sys.stdout.write(data)
sys.stdout.flush()
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