needle -filter

[Peter Rice]

David Mathog wrote:
>>... and you can't seek back to the position in a pipe
> 
> 
> Not directly.  But one can maintain inside getnextline()
> a rollback buffer that stores the last N lines from fgets().

This is essentially an EMBOSS file buffer - but we avoid buffering every 
input because of the overhead.

Let us stick with using EMBOSS to split up input files. It is simple and 
less likely to break something.

Peter