From: Yohanes Santoso <ysantoso@...>
Date: 2002-12-16T23:42:00+09:00
Subject: Re: a range with all the ascii chars

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gabriele renzi <surrender_it@rc1.vip.lng.yahoo.com> writes:

> Hi, gurus
> 
> I know that ruby handles unicode, and I suppose it handles ascii as a
> subset of unicode, m need is to have a Range like
> "\000\000\000".."\255\255\255"   [1]
> 
> or, if you like, this more:
> "aaa".."zzz"+$all_the_strange_chars
> 
> I tried to use the previous [1] way to obtain this, but it seems to
> fail, giving me an array with 58 (!) elements.
> How could I iterate over strings like this ?

 (0..0xFFFFFF).each{|i| 
        a = [i>>16&0xFF, i>>8&0xFF, i&0xFF].pack("c*"); 
        
        # Now we test if the packing is right
        a.each_byte{|b| print "#{"%02X"%b} "}; puts;}
        # And it is, it outputs:
        # 00 00 00
        # 00 00 01
        # ......
        # FF FF FE
        # FF FF FF
}

YS.
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