From: Jeff Schwab <jeff@...>
Date: 2009-02-21T02:24:42+09:00
Subject: Re: Un-escaping hexadecimal code

I単aki Baz Castillo wrote:
> El Viernes, 20 de Febrero de 2009, Jeff Schwab escribi坦:
>> I単aki Baz Castillo wrote:
>>>   string = "%61lice"
>>>   string = eval %{ "#{ string.gsub(/%/,'\x') }" }
>>>   => "alice"
>>>
>>> How could I avoid the usage of "eval" to un-escape the string?
>> s.gsub! /%(\d+)/ do |match|
>>    $1.to_i(16).chr
>> end
>> puts s
>>
>> You might also consider supporting escaped % literals.
> 
> Also, it should consider not just number but A-F

Right you are.