From: Chris Hulan <chris.hulan@...>
Date: 2008-05-13T23:15:26+09:00
Subject: Re: How to convert character to hexadecimal?

On May 13, 9:57 am, Iņaki Baz Castillo <i...@aliax.net> wrote:
> 2008/5/13, Rob Biedenharn <R...@agileconsultingllc.com>:
>
> >  " ".unpack('H*')[0]
> >  => "20"
> >  "\t".unpack('H*')[0]
> >  => "09"
>
> >  Put an "x" or "0x" on the front if you wish:
> >  "x"+(" ".unpack('H*')[0])
>
> Great !
>
> --
> Iņaki Baz Castillo
> <i...@aliax.net>

I think ' '[0].to_s.hex will produce the value and be a bit easier to
read.  YMMV
For example:
  x = " \tX"
  0.upto(x.size-1){|i| puts "x%02x"%x[i].to_s.hex}

There is a String.each_char, but it wouldn't work in the version of
ruby i have access to...

Cheers