Rot13 and letters with accents

From: Andreas Prilop (
Date: Thu Dec 06 2007 - 10:57:07 CST

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    The rot13 algorithm is applied to the basic ASCII alphabet only.
    When rot-13 is used with, say, German text, the special umlauts
    remain the same.

    The letter "a with tilde" () may be written as either

      U+0061 U+0303

    When rot13 is applied to the first, nothing happens.
    However, when rot13 is applied to the second, the result
    is U+006E U+0303, "n with tilde" ().

    So with respect to rot13, U+00E3 and U0061 U+0303
    are not equivalent.

    Well, this is not a serious question or concern -
    just an observation. Any comments?

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