http://qs321.pair.com?node_id=1066506

too bad this doesn't work.

while(<DATA>){y/a-zA-Z/b-zaZA-Y/e}

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Re: oh for y///e
by kcott (Archbishop) on Dec 11, 2013 at 14:39 UTC

    G'day bhildred,

    "too bad this doesn't work.
    while(<DATA>){y/a-zA-Z/b-zaZA-Y/e}"

    'e' is not a valid option for y/// — see perlop: Quote-Like Operators.

    "this doesn't work" is a useless error report. What were you expecting it to do?

    -- Ken

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Re: oh for y///e
by Eily (Monsignor) on Dec 11, 2013 at 14:27 UTC

    What are you trying to do with the /e switch? eval 'b-zaZA-Y'? I don't see the point. And if you want to eval the result, just do eval y/a-zA-Z/b-zaZA-Y/r while <DATA>;

    And if you just put the /e by mistake, just take it away and your code will work just fine.

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      What are you trying to do with the /e switch? eval 'b-zaZA-Y'? I don't see the point.
      Maybe something like: 
      $cryped = substitution_cypher();
$text =~ y/a-z/$crypted/e;

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      instead of 
      eval "\$text =~ y/a-z/$crypted/";

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        It would be cool when writing Obfuscated Code to eval the results of a transform without using eval to make it obvious what you are doing.
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