From: Joey <rubytalk@...>
Date: 2006-08-06T03:55:14+09:00
Subject: Re: Smoking hash-ish: Letter mapping...

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Maybe: encmap=Hash[*('A'..'Z').to_a.sort{rand(2)}]

and Marshal.dump and Marshal.load for storing.

j`ey
http://www.eachmapinject.com

On 8/5/06, Meino Christian Cramer <Meino.Cramer@gmx.de> wrote:
>
> Hi,
>
> for a *very* simplistic encryption program I want to build a
> hash, which should be dynamically build (not hardcoded).
>
> The input of the method which should do the job will be a range of
> any meaningful input, say: parameter 1: A and parameter 2: Z
>
> Then the method should create a Hash with that mapping
> "A" -> "Z"
> "B" -> "G"
> "C" -> "T"
> ...
>
> or in other words:
> The key should follow the given range, and the values should
> represent all values of that range but in random order.
>
> For arrays I learned a nice trick from this list:
>
>          encmap=(A..Z).to_a.sort{rand(2)}
>
> but...how can I accomplish similiar for a hash ???
>
> And: I sthere a simple way to store a hash in binary format and later
> load that hash again into memory ?
>
> Nice weekend!
> mcc
>
>
>
>

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