Function: pp--within-fill-column-p
pp--within-fill-column-p is a byte-compiled function defined in
pp.el.gz.
Signature
(pp--within-fill-column-p)
Documentation
Return non-nil if point is within fill-column.
Source Code
;; Defined in /usr/src/emacs/lisp/emacs-lisp/pp.el.gz
(defun pp--within-fill-column-p ()
"Return non-nil if point is within `fill-column'."
;; Try and make it O(fill-column) rather than O(current-column),
;; so as to avoid major slowdowns on long lines.
;; FIXME: This doesn't account for invisible text or `display' properties :-(
(and (save-excursion
(re-search-backward
"^\\|\n" (max (point-min) (- (point) fill-column)) t))
(<= (current-column) fill-column)))