Function write_reset_tab_stops_every_8 

pub fn write_reset_tab_stops_every_8<W: Write>(
    w: &mut W,
    width: u16,
) -> Result<()>

Reset tab stops to one every eight columns without DECST8C.

Clears every existing stop with TBC and re-establishes one at each eighth column through width using HTS. The cursor is parked at column zero with CR before and after, and nothing is printed, so the visible row is left untouched. This is the portable fallback for terminals that do not implement SET_TAB_EVERY_8_COLUMNS.

width is the managed width in cells; a width of eight or fewer only clears stops, since the first default stop already lies at or past the right edge.