Variable: ediff-auto-refine
ediff-auto-refine is a buffer-local variable defined in
ediff-diff.el.gz.
Documentation
If on, Ediff auto-highlights fine diffs for the current diff region.
If off, auto-highlighting is not used. If nix, no fine diffs are shown
at all, unless the user force-refines the region by hitting *.
This variable can be set either in .emacs or toggled interactively.
Use setq-default if setting it in .emacs
Source Code
;; Defined in /usr/src/emacs/lisp/vc/ediff-diff.el.gz
;;; Fine differences
(ediff-defvar-local ediff-auto-refine (if (ediff-has-face-support-p) 'on 'nix)
"If `on', Ediff auto-highlights fine diffs for the current diff region.
If `off', auto-highlighting is not used. If `nix', no fine diffs are shown
at all, unless the user force-refines the region by hitting `*'.
This variable can be set either in .emacs or toggled interactively.
Use `setq-default' if setting it in .emacs")