From: Daniel Carrera <dcarrera@...>
Date: 2003-05-06T06:10:40+09:00
Subject: Re: [Q] Binary data

> > Is it possible to store and manipulate binary data in Ruby?
[snip]
> I can think of the following:
> Bit operations w/ Fixnum, then Array#pack.

Could you explain to me how to use Array#pack?  PickAxe doesn't contain 
almost anything:

Pickaxe:
   a = [ "a", "b", "c" ]
   n = [ 65, 66, 67 ]
   a.pack("A3A3A3")"   # -> "a  b  c"
   a.pack("a3a3a3")    # -> "a\000\000b\000\000c\000\000"
   n.pack("ccc")       # -> "ABC"


Where can I learn how to use Array#pack?

Thanks,
-- 
Daniel Carrera
Graduate Teaching Assistant.  Math Dept.
University of Maryland.  (301) 405-5137