pub fn columnsUntilTabStop(column: usize, tab_columns: usize) usize
pub fn columnsUntilTabStop(column: usize, tab_columns: usize) usize { // 0 => 8, 1 => 7, 2 => 6, 3 => 5, 4 => 4 // 5 => 3, 6 => 2, 7 => 1, 8 => 8 return tab_columns - (column % tab_columns); }