Re: buffer-substring-filter

[Richard Stallman]

    > Using mapcar is a little wasteful, since it makes a list of the results
    > only to throw them all away.  Better to use dolist.
    >
    > It would be good to move point to BEG, temporarily,
    > so that the functions can tell where the text came from
    > in case they care.

    Yes, true.

    > However, the real question is whether this is the right feature
    > for doing the job.  Have you changed longlines.el to use it?
    > Does it do what longlines needs?

    Yes, I have changed longlines.el to use it, and I have confirmed that it
    does what I need.

In that case, could you make those two little changes, and then
would someone please install it?