On Monday, 24 September 2012 at 16:32:45 UTC, monarch_dodra wrote:
On Monday, 24 September 2012 at 15:05:54 UTC, Jason Spencer
wrote:
I imagine there's a slick way to do this, but I'm not seeing
it.
I have a string of hex digits which I'd like to convert to an
array of 8 ubytes:
0123456789abcdef --> [0x01, 0x23, 0x45, 0x67, 0x89, 0xAB,
0xCD, 0xEF]
<snip>
void main(string[] args)
{
ubyte[8] b;
formattedRead(args[1], "%(%s%)", &b);
}
I think that you are not supposed to use a static array: If
there are not EXACTLY as many array elements as there are
parse-able elements, then the formatted read will consider the
parse to have failed.
The sample code was just for testing convenience. In practice
the string will be conditioned and known to have 16 characters in
{0-9, a-f}.
Try this, it's what you want, right?
--------
void main()
{
string s = "ffff fff ff f";
ushort[] vals;
formattedRead(s, "%(%x %)", &vals);
writefln("%(%s - %)", vals);
}
Not quite. You've taken the liberty of using a
delimiter--spaces. I have to take 16 contiguous, NON-delimited
hex digits and produce 8 bytes. So I could read it as a uint64
(not uint16, as I mistakenly posted before), but then I'd have to
byte-reverse it. I could use slicing and do a byte at a time. I
just wondered if there were a slick way to get in-place data from
a contiguous hex string.
Thanks,
Jason
