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41 lines
1.0 KiB
Python
41 lines
1.0 KiB
Python
2 years ago
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#!/usr/bin/env python3
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"""
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Functions that modify and return strings.
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"""
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import string
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def rot(in_str, n):
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'''
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return rot_n of in_str
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'''
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return in_str.translate(
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in_str.maketrans(
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string.ascii_lowercase,
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string.ascii_lowercase[n:] + string.ascii_lowercase[:n]
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)).translate(
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in_str.maketrans(
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string.ascii_uppercase,
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string.ascii_uppercase[n:] + string.ascii_uppercase[:n]
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))
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def string2bin(in_str):
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return ''.join(format(ord(x), 'b').zfill(8) for x in in_str)
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def bin2string(in_str):
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return ''.join(chr(int(in_str[_*8:_*8+8], 2)) for _ in range(len(in_str)//8))
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def zero_width_string(in_str):
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'''
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return the ASCII string encoded in non printing spaces
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'''
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return ''.join(u'\u200b' if x == '1' else u'\u200d' for x in string2bin(in_str))
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def zero_width_string_decode(in_str):
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return bin2string(''.join('1' if x == '\u200b' else '0' for x in in_str))
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def main():
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pass
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if __name__ == '__main__':
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main()
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