7 lines
274 B
Text
7 lines
274 B
Text
fcn caesarCodec(str,n,encode=True){
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var [const] letters=["a".."z"].chain(["A".."Z"]).pump(String); // static
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if(not encode) n=26 - n;
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m,sz := n + 26, 26 - n;
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ltrs:=String(letters[n,sz],letters[0,n],letters[m,sz],letters[26,n]);
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str.translate(letters,ltrs)
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}
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