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Postings from August 2012
On Mon, Aug 13, 2012 at 2:41 PM, David Cantrell <david@cantrell.org.uk> wrote:
> pack() and unpack() can handle words of 1, 2, 4, and (if you built your
> perl right) 8 bytes. And I use the same magic characters (although
> without using pack and unpack) in Data::Hexdumper.
>
> However, I want to extend it to support 16 byte words and, indeed, to
> support any other length words. 3 byte words, for example.
That sounds like an excellent idea.
> I'd like to remain as compatible as possible with the characters used in
> pack()'s templates, but there's nothing there for what I want.
>
> So, can I propose that we pick a character for this purpose and at least
> define some syntax for specifying a word length, endian-ness, and repeat
> count for it, even if it isn't implemented yet?
>
> Something like this perhaps:
> X5,4>
>
> which means:
> X - whatever letter we choose
> 5 - word length
> ,4 - optional repeat count
> > - optional endian-ness
I don't like the syntax much, but I'm not sure I can think of
something better. Maybe «X{5}4»?
Leon
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