ffap-next-guess
ffap-next-guess is a compiled Lisp function in `ffap.el
'.
(ffap-next-guess &optional BACK LIM)
Move point to next file or URL, and return it as a string.
If nothing is found, leave point at limit and return nil.
Optional BACK argument makes search backwards.
Optional LIM argument limits the search.
Only considers strings that match `ffap-next-regexp'.