From: Joel VanderWerf <vjoel@...>
Date: 2008-09-07T14:23:38+09:00
Subject: Re: how to change ASCI to Hex

arton wrote:
> --------------------------------- Joel VanderWerf vjoel@path.berkeley.edu
> vjoel@path.berkeley.edu, ruby-talk@ruby-lang.org (ruby-talk ML)
> how to change ASCI to Hex
>> Zqd Zqd wrote:
>>> hi everyone:
>>>   I want to change ASCI to Hex,which i receive in the UDPSocket,but it
>>> just report error
>>>
>>>  1) my code is:
>>>    server = UDPSocket.open
>>>    server.bind('192.168.203.108', $port)
>>>    s= server.recvfrom(164)
>> I think this is what you're asking for:
>>
>>       s.unpack("C")[0]
>>
>> -- 
>>        vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407
> 
> Joel, In Ruby 1.9 you're right, but with Ruby 1.8 no need to unpack,
> because str[n] returns just one character at the index points
> 
> Then, 
>    server = UDPSocket.open
>    server.bind('192.168.203.108', $port)
>    s= server.recvfrom(164)
>    s=s[0]
>    p s

True, but that's what the OP tried and got an error. Perhaps OP's ruby 
is 1.9?

Anyway, I'm guessing the next question will be "how do I get a long from 
positions 3..7?", and so might as well get started using unpack....

-- 
       vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407