[emboss-dev] USA syntax and `%' character in sequence file names

Nicolas Joly njoly at pasteur.fr
Fri Oct 24 07:43:22 UTC 2008

On Thu, Oct 23, 2008 at 10:47:54PM +0100, ajb at ebi.ac.uk wrote:
> Hi Nicolas,
> What it does, given a USA like:
>     foo%10
> is to seek 10 bytes into file foo and try to start
> reading a sequence from there. It does not, however, currently check that
> what appears after the '%' is a valid number. I believe invalid numbers
> are equivalent to an offset of 0.
> I suspect it might have been intended as a useful debugging tool for
> the programmer rather than as something for the biologist.
> If we leave it as an option we ought to mention it the documentation
> in some form though.

Thanks, Alan. Personally, i would get rid of it. But if you plan to
keep it, please check for valid numbers before using it.

Nicolas Joly

Biological Software and Databanks.
Institut Pasteur, Paris.

More information about the emboss-dev mailing list