From: Harry Kakueki <list.push@...>
Date: 2007-07-26T00:38:35+09:00
Subject: Re: read variables from string

On 7/26/07, daniel <daniel.leuenberger@gmx.ch> wrote:
> Hi,
>
> I would like to extract an array of e.g. integers or floats from a
> string:
>
> s = "1234" -> [12,34]
> s = "12.413.423.7" -> [12.4,13.4,23.7]
>
> How can I use unpack for that? What format string do I need for the
> two examples above?
>
It depends on your rules for extracting data.

You can try something like this.

s = "1234" #-> [12,34]
t = "12.413.423.7" #-> [12.4,13.4,23.7]
p s.scan(/\d{2}/).map{|x| x.to_i}
p t.unpack("a4a4a4").map{|x| x.to_f}

There are probably better ways.

Harry

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