From: arton <artonx@...>
Date: 2008-09-07T14:48:54+09:00
Subject: Re: how to change ASCI to Hex

--------------------------------- Joel VanderWerf vjoel@path.berkeley.edu
vjoel@path.berkeley.edu, ruby-talk@ruby-lang.org (ruby-talk ML)
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....

you may see the version invoking ruby with -v option
ie)
c:\>ruby -v
ruby 1.9.0 (2008-08-26 revision 18849) [i386-mswin32]

> 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..
Um, you are correct. I respect you.

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