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69 lines
2.7 KiB
69 lines
2.7 KiB
#!/usr/bin/env python3
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# vim: set noet ts=4:
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import sys
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import optparse
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translations = {
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0: "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ",
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1: "bcdefghijklmnopqrstuvwxyzaBCDEFGHIJKLMNOPQRSTUVWXYZA",
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2: "cdefghijklmnopqrstuvwxyzabCDEFGHIJKLMNOPQRSTUVWXYZAB",
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3: "defghijklmnopqrstuvwxyzabcDEFGHIJKLMNOPQRSTUVWXYZABC",
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4: "efghijklmnopqrstuvwxyzabcdEFGHIJKLMNOPQRSTUVWXYZABCD",
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5: "fghijklmnopqrstuvwxyzabcdeFGHIJKLMNOPQRSTUVWXYZABCDE",
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6: "ghijklmnopqrstuvwxyzabcdefGHIJKLMNOPQRSTUVWXYZABCDEF",
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7: "hijklmnopqrstuvwxyzabcdefgHIJKLMNOPQRSTUVWXYZABCDEFG",
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8: "ijklmnopqrstuvwxyzabcdefghIJKLMNOPQRSTUVWXYZABCDEFGH",
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9: "jklmnopqrstuvwxyzabcdefghiJKLMNOPQRSTUVWXYZABCDEFGHI",
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10: "klmnopqrstuvwxyzabcdefghijKLMNOPQRSTUVWXYZABCDEFGHIJ",
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11: "lmnopqrstuvwxyzabcdefghijkLMNOPQRSTUVWXYZABCDEFGHIJK",
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12: "mnopqrstuvwxyzabcdefghijklMNOPQRSTUVWXYZABCDEFGHIJKL",
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13: "nopqrstuvwxyzabcdefghijklmNOPQRSTUVWXYZABCDEFGHIJKLM",
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14: "opqrstuvwxyzabcdefghijklmnOPQRSTUVWXYZABCDEFGHIJKLMN",
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15: "pqrstuvwxyzabcdefghijklmnoPQRSTUVWXYZABCDEFGHIJKLMNO",
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16: "qrstuvwxyzabcdefghijklmnopQRSTUVWXYZABCDEFGHIJKLMNOP",
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17: "rstuvwxyzabcdefghijklmnopqRSTUVWXYZABCDEFGHIJKLMNOPQ",
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18: "stuvwxyzabcdefghijklmnopqrSTUVWXYZABCDEFGHIJKLMNOPQR",
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19: "tuvwxyzabcdefghijklmnopqrsTUVWXYZABCDEFGHIJKLMNOPQRS",
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20: "uvwxyzabcdefghijklmnopqrstUVWXYZABCDEFGHIJKLMNOPQRST",
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21: "vwxyzabcdefghijklmnopqrstuVWXYZABCDEFGHIJKLMNOPQRSTU",
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22: "wxyzabcdefghijklmnopqrstuvWXYZABCDEFGHIJKLMNOPQRSTUV",
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23: "xyzabcdefghijklmnopqrstuvwXYZABCDEFGHIJKLMNOPQRSTUVW",
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24: "yzabcdefghijklmnopqrstuvwxYZABCDEFGHIJKLMNOPQRSTUVWX",
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25: "zabcdefghijklmnopqrstuvwxyZABCDEFGHIJKLMNOPQRSTUVWXY"
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}
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def main():
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usage = "rot.py [-n n] <string>"
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parser = optparse.OptionParser(usage=usage)
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parser.add_option('-n', action='store', type="int", help='Rotate by n (0 <= n <= 26)', )
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options, args = parser.parse_args()
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s = ""
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if len(args) == 0:
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print("Please provide a string!")
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sys.exit(1)
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elif len(args) == 1:
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s = args[0]
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else:
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s = " ".join(args)
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if options.n is not None:
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if 1 <= options.n <= 25:
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rot = str.maketrans("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ", translations[options.n])
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t = str.translate(s, rot)
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print(f"rot({options.n:2d}): {t}")
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elif options.n == 0 or options.n == 26:
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print(f"rot({options.n:2d}): {s}")
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else:
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print("Valid range for n: 0 to 26! 0 equals 26")
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sys.exit(1)
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else:
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print(f"rot( 0): {s}")
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for i in range(1,26):
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rot = str.maketrans("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ", translations[i])
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t = str.translate(s, rot)
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print(f"rot({i:2d}): {t}")
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if __name__ == '__main__':
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main()
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