From: Brian Candler <b.candler@...>
Date: 2010-07-16T01:47:27+09:00
Subject: Re: Sending packets over TCP server

Zsdfhdfgasdf Gsfgsdgsdgsd wrote:
> Also, if a string DOES contain bytes, it won't show.
> 
> ----------
> a =  "\x07"
> puts "Returns: '#{a}'"

a = "\x07\x00\x41\x42\x43\xff"
puts "Returns: #{a.inspect}"
puts "Returns: #{a.unpack("H*").first}"

> How would I manipulate it?

Just as a String:

a.length
a[1,3]    # slice from pos 1 for 3 bytes
.. etc

But if you know precisely the format you're expecting, then 
String#unpack will allow you to break it up into integers and 
substrings.
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