From: "Jan E." <lists@...>
Date: 2012-06-07T17:48:38+09:00
Subject: Re: string character count

"Jesús Gabriel y Galán" <jgabrielygalan@gmail.com> wrote in post 
#1063418:
>
> 1.9.2p290 :001 > s = "this is a string."
>  => "this is a string."
> 1.9.2p290 :002 > s.split(" ").map {|x| x.length}.join(" ")
>  => "4 2 1 7"

Or shorter:

s.split.map(&:length).join ' '

Or even shorter and more robust (will handle any sequence of any space 
characters):

s.gsub /\S+/, &:length

However, this is also slower.

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