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[REBOL] Working with binary data Re:

From: jsc::dataheaven::de at: 27-Sep-2000 3:33

On Wed, 27 Sep 2000, you wrote:
> If I read in a binary file I get this for example: > > variable: #{ > 524946462400000043444441666D742018000000010001005C774C0100000000 > B253000000020000332D0400 > } > > How do I navigate this to get to specific values and extract them and store > them in variables?
To move forward in the binary block use skip to walk over the bytes. To cut out a part of the binary-block use copy/part e.g choose 4 bytes from byte position 3 (counted from 1 as it is common in REBOL) in above block: result: copy/part skip variable 2 4 == #{46462400} If you want you can write a funciton to make it easier e.g: cut: func [seq pos len] [ copy/part skip seq (pos - 1) len ] So you can write the above example as: cut variable 3 4 Regards Jochen