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Re: BINARY FILES [message #22067 is a reply to message #21979]

Fri, 13 October 2000 00:00

John-David T. Smith is currently offline

John-David T. Smith
Messages: 384
Registered: January 2000

Senior Member

David Fanning wrote:
>
> mohamed nur (mohamed_nur@my-deja.com) writes:
>
>> I've been dealing with binary files and every case i had to know before
>> hand the dimensions of the array to setup an IDL variable of the said
>> dimesions and read the unformatted data into.
>>
>> But is it possible or is there a method (in IDL 5.2/5.3) to read it in
>> with no knowledge of the dimensions of the array.
>
> A free Second Edition IDL Programming Techniques book
> to the first person who can find the simple word I
> embedded in this binary sequence:
>
> 0 1 1 0 1 0 0 0 0 0 0 0 0 0 1 1 0 0 1
> 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 0 0 0
> 0 0 0 0 0 0 0 0 1 1 1 0 1 1 0 0 0 0 0
> 0 0 0 0 0 1 1 0 1 0 0 1 0 0 0 0 0 0 0
> 0 0 1 1 0 0 1 0 0 1 0 1 0 0 0 1 0 1 1
> 0 0 0 0 1 0 0 0 1 1 0 1 1 0 0 0 0 1 0
>

Hmm... all ascii letters at any offset:

0:hH
1:Ja
2:XF
3:
4:Qa
5:ddvid
6:El
7:

Offset 5 looks promising. Do we get extra points for detecting typoes?
Does the german Ja or spanish El count?

JD

--
J.D. Smith | WORK: (607) 255-6263
Cornell Dept. of Astronomy | (607) 255-5842
304 Space Sciences Bldg. | FAX: (607) 255-5875
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[Message index]

		BINARY FILES By: mohamed_nur on Fri, 13 October 2000 00:00
		Re: BINARY FILES By: Aaron Birenboim on Mon, 16 October 2000 00:00
		Re: BINARY FILES By: Aaron Birenboim on Mon, 16 October 2000 00:00
		Re: BINARY FILES By: Nick Bower on Sun, 15 October 2000 00:00
		Re: BINARY FILES By: mole6e23 on Fri, 13 October 2000 00:00
		Re: BINARY FILES By: Paul van Delst on Fri, 13 October 2000 00:00
		Re: BINARY FILES By: davidf on Fri, 13 October 2000 00:00
		Re: BINARY FILES By: John-David T. Smith on Fri, 13 October 2000 00:00
		Re: BINARY FILES By: mole6e23 on Fri, 13 October 2000 00:00
		Re: BINARY FILES By: davidf on Fri, 13 October 2000 00:00
		Re: BINARY FILES By: Liam E. Gumley on Fri, 13 October 2000 00:00
		Re: BINARY FILES By: Martin Schultz on Fri, 13 October 2000 00:00
		Re: binary files By: penteado on Wed, 09 March 2011 18:03

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