From: Xavier Noria <fxn@...>
Date: 2003-09-17T00:00:56+09:00
Subject: Re: scrambler one-liner

On Tuesday 16 September 2003 16:50, Weirich, James wrote:

> > -pe
>
> 'gsub!(/\w+/){|w|r=1..w.size-1;w[r]=w[r].split(//).sort_by{rand}.to_s
>;w}'
>
> Hmmm ... This seems to smbrcale all the lertets but the fsrit. It
> souhld lvaee the last ctaeachrr in pclae.
>
> Try:
>
>    ruby -pe
> 'gsub!(/\w+/){|w|(w.size>1)?(r=1...w.size-1;w[r]=w[r].split(//).sort_
>by{rand }.to_s;w):w}'
>
> It's leongr, but it gevis the rihgt asnwer.

Oh yes, I got size-1 wrong:

-pe 'gsub!(/\w+/){|w|r=1..w.size-2;w[r]=w[r].split(//).sort_by{rand}.to_s;w}'

It seems there is no need to treat the case w.size > 1 specially because the
slice gives an empty string for sizes == 1 or 2 and everything seems to work
right AFAICT.

-- fxn