hole instead, use ~sweeprolog-backward-hole~ or call
~sweeprolog-forward-hole~ with a negative prefix argument (~C-- C-c TAB~).
+#+FINDEX: sweeprolog-forward-hole-on-tab-mode
+#+KINDEX: TAB (sweeprolog-forward-hole-on-tab-mode)
+#+KINDEX: C-i (sweeprolog-forward-hole-on-tab-mode)
When the minor mode ~sweeprolog-forward-hole-on-tab-mode~ is enabled,
the ~TAB~ key is bound to a command moves to the next hole when called
in a properly indented line (otherwise it indents the line). This