From: Elliott Cable <me@...>
Date: 2009-07-22T06:50:14+09:00
Subject: Re: Byte–stream parsing in Ruby

Brian Candler wrote:
> Elliott Cable wrote:
>> The goal is to devise some method by which I can:
>> 
>> 1) Determine whether or not an `Array` of so–far–received bytes is, yet,
>> a valid `String` of a given `Encoding`
> 
>>> "über".bytes.to_a
> => [195, 188, 98, 101, 114]
>>> a = "\xc3".force_encoding("UTF-8")
> => "\xC3"
>>> a.valid_encoding?
> => false
>>> a << "\xbc"
> => "ü"
>>> a.valid_encoding?
> => true
>>> 

Hrm, #valid_encoding? is very helpful. But how can I stuff numerical 
(`Fixnum`) bytes onto the string?
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