Meador Inge wrote:
>>So we need ability to compare numerical fields line-by-line,
>>ignoring any text that might be surrounding them, but
>>make sure that for a given line, the same number of
>>"numeric fields" exist.
> 
> But shouldn't the surrounding text matter to some degree? Otherwise:
>    a b 1.2345 c d
> would match:
>    d c 1.2345 b a
> . It seems to me much safer to at least assure that the surrounding
> text is the same in both files.

That would be a good option, but at this point, all
we care about is the numerical tolerance aspect -- ndiff
should be primarily focused on numbers.

We can use diff for text-based changes if need be.

Thanks for the interest,
--
Bil
http://fun3d.larc.nasa.gov