font-lock-maximum-decoration
We should take into account the value of
font-lock-maximum-decoration
while highlighting
sweeprolog-mode
buffers. This variable conveys the user’s
preferred degree of highlighting. A possible approach would be
changing sweeprolog-analyze-fragment-to-faces
such that each
color fragment in the returned list states the minimum decoration
level (1, 2 or 3) for which it should apply.
sweeprolog-analyze-fragment-font-lock
would then compare this
target to the value of (font-lock-value-in-major-mode
font-lock-maximum-decoration)
and decide whether or not to apply the
fragment.
Sweep Prolog mode should integrate with align.el such that
M-x align aligns arguments of consecutive predicate calls.
Concretely, we need to locally set align-mode-rules-list
to a
suitable value in sweeprolog-mode
.
Sweep Prolog mode should define a fill-paragraph-function
, and
perhaps also a normal-auto-fill-function
, for code filling that
takes into account Prolog-specific conventions.