Re: A little golfing challenge: replace digits by random letters

Not a perfect shuffle, but close (enough?) and much shorter:

perl -M5';$x=join"",sort{rand()<rand}a..z'
     -pe 'eval"tr/0-9/$x/"' input.txt
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Comment on Re: A little golfing challenge: replace digits by random letters Download Code

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Re^2: A little golfing challenge: replace digits by random letters by bliako (Monsignor) on Feb 10, 2019 at 13:02 UTC
half-blind-sort is a great idea (and so is `{rand()<rand}` ). Couldn't resist `sort{rand(2)-1}` as it's shorter by 2 and truer blind. Update/Correction: as vr rightly notes, `int(rand(2)-1)` is constantly 0!!! Because sort expects an integer back from the comparison BLOCK and `int()`'ing `rand(2)-1` leaves just 0 :(. So, both these compensate for that bug and are uniformly random too: `sort{rand(6)-4}` and `sort{1-rand(3)%3}`	[reply] [d/l] [select]
Re^3: A little golfing challenge: replace digits by random letters by vr (Curate) on Feb 10, 2019 at 14:12 UTC
Perhaps `sort{rand(2)-1}` (in effect, same as `sort{0}`) is somewhat too deterministic :). But `$ perl -E 'say sort{rand 2}a..z'` produces random enough strings, and is shorter.	[reply] [d/l] [select]
Re^4: A little golfing challenge: replace digits by random letters by bliako (Monsignor) on Feb 10, 2019 at 15:28 UTC
ai! indeed it is. got bitten by int. This is uniformly random `sort{rand(6)-4}` and so is this `sort{1-rand(3)%3}`	[reply] [d/l] [select]