jim said:
>   suggest you keep working in this direction
>   as I think it would make a contribution.

well, yes and no.

it's good for doing a word-by-word proofing...

but, as i've shown, that methodology is overkill,
at least when it is practiced over an entire book
that was properly and aggressively preprocessed,
as upwards of 90% of the lines are already perfect.

it is good at pulling out the other 10% of the lines,
however, and subjecting them to a closer scrutiny.

plus it does have utility in doing a _comparison_
between two files, as is shown in this screenshot:
>   http://z-m-l.com/go/sitka/findlines.png

that screenshot also gives you some hints about
how i go about slicing the lines, although that's
not really too difficult to figure out on your own.

-bowerbird

p.s.  the pinkish lines in that screenshot are lines
that have a diff between the two different versions.
the numbers by the asterisks are a simple counter
for the number of diffs cumulative to that point...