RULER_NONE         71 src/viewer/display.c } ruler = RULER_NONE;
RULER_NONE        286 src/viewer/display.c     height = (ruler == RULER_NONE || view->mode_flags.hex) ? 0 : 2;
RULER_NONE        340 src/viewer/display.c         RULER_NONE
RULER_NONE        380 src/viewer/display.c     if (ruler == RULER_NONE || height < 1)