| 1 | #!/usr/bin/env python2
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| 2 | """
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| 3 | unicode.py
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| 4 | """
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| 5 | from __future__ import print_function
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| 6 |
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| 7 | import re
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| 8 | import sys
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| 9 |
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| 10 |
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| 11 | def main(argv):
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| 12 | decode = False
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| 13 | if argv[1] == 'unicode':
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| 14 | print('palindrome.py: unicode', file=sys.stderr)
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| 15 | decode = True
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| 16 |
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| 17 | for line in sys.stdin:
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| 18 | line = line.rstrip() # remove newlines and spaces
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| 19 |
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| 20 | if len(line) == 0: # skip blank lines
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| 21 | continue
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| 22 |
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| 23 | if decode:
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| 24 | seq = line.decode('utf-8')
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| 25 | else:
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| 26 | seq = line
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| 27 |
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| 28 | n = len(seq)
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| 29 |
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| 30 | h = n // 2 # floor division
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| 31 |
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| 32 | #print('n = %d, h = %d' % (n, h))
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| 33 |
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| 34 | palindrome = True
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| 35 | for i in xrange(h):
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| 36 | if seq[i] != seq[n-1-i]:
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| 37 | palindrome = False
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| 38 | break
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| 39 |
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| 40 | if palindrome:
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| 41 | print(line)
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| 42 |
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| 43 |
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| 44 | if __name__ == '__main__':
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| 45 | try:
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| 46 | main(sys.argv)
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| 47 | except RuntimeError as e:
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| 48 | print('FATAL: %s' % e, file=sys.stderr)
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| 49 | sys.exit(1)
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