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Re: PERL Binary Data Handling

by Anonymous Monk
on Oct 05, 2012 at 20:55 UTC ( #997547=note: print w/ replies, xml ) Need Help??

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  1. or download this
     $ perl -le " print join q/ /, unpack q/(A4)*/, unpack q/B*/, pack q/B
    +33/, 1, 66 "
    1000 0000 0000 0000 0000 0000 0000 0000 0000 0000
    
    $ perl -le " print join q/ /, unpack q/(A2)*/, unpack q/H*/, pack q/B3
    +3/, 1,66  "
    80 00 00 00 00
    
  2. or download this
    $ perl -le " print join q/ /, unpack q/(A2)*/, unpack q/H*/, pack q/B3
    +3/, join q//, 1, unpack q/B32/, 66  "
    9b 1b 00 00 00
    ...
    
    $ perl -le " print join q/ /, unpack q/(A4)*/, unpack q/B*/, pack q/B3
    +3/, join q//, unpack(q/B1/,1), unpack q/B32/, 66 "
    1001 1011 0001 1011 0000 0000 0000 0000 0000 0000
    
  3. or download this
    $ perl -le " print join q/ /, unpack q/(A4)*/, unpack q/B*/, pack q/B3
    +3/, join q//, unpack(q/B1/,1), unpack q/B32/, 66 "
    
    0001 1011 0001 1011 0000 0000 0000 0000 0000 0000
    

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