From: "Ara.T.Howard" <ahoward@...>
Date: 2004-08-04T09:42:07+09:00
Subject: Re: Fastest way to reverse-process a string?

On Wed, 4 Aug 2004, Lloyd Zusman wrote:

> In a ruby program I'm writing, I want to parse a string in reverse and
> feed each of its individual characters through a state machine.
>
> A "hammer and tongs" solution looks like this:
>
>  string.reverse.split(//).each {
>    |ch|
>    feedIntoStateMachine(ch)
>  }
>
> However, this seems rather inefficient.  Does anyone know of a faster
> algorithm for this in ruby?
>
> Thanks in advance.
>
>
> --
> Lloyd Zusman
> ljz@asfast.com
> God bless you.

~ > ruby -e 's="raboof"; (s.size - 1).downto(0){|i| print s[i].chr}; puts'
foobar


-a
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