leLexRComment l n ('\t':cs)
   = leLexRComment l (n - (n `mod` 8) + 9) cs
leLexRComment l n ('\t':cs)
   = leLexRComment l (n - (n `mod` 8) + 9) cs
leLexRComment l n ('\t':cs)
   = leLexRComment l (n - (n `mod` 8) + 9) cs