From: William Crawford <wccrawford@...>
Date: 2006-09-01T00:20:39+09:00
Subject: Re: splitting string to hash

Brian Nice wrote:
> I have a strings like the following:
>   s1- "[1] Hello [2] bye"
>   s2- "[1] Hello [2] bye [2:1] continue [2] more"
> 
> I want to convert them to hashes like
>   h1- {1 => "Hello", 2 => "bye"}
>   h2- {1 => "Hello", 2 => "bye", "2:1" => "continue", "2:2" => more"}
> 
> Is there an easy Ruby way to do this?
> Thanks for the help
> Brian

Assuming that James is correct in that :2 is missing from the second 
string, this works:

h2 = Hash[*s2.scan(/\[([^\[\]]+)\] (\w+)/).flatten]

(I'm starting to really like Ruby.)

In case that's not clear, scan uses a regex to provide an array of 
2-element arrays from the text.  Then flatten makes it into a single 
array, then the * turns it into a list of just values, instead of an 
array.  Then Hash[] turns each 2 values into a hash.

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