Returns the index into the original string of the Ith smallest suffix. That is, text.substring(sa.index(i)) is the I smallest suffix.

Returns the length of the longest common prefix of the Ith smallest suffix and the I-1st smallest suffix.

Demo test the SuffixArrayx data type.

Returns the number of suffixes strictly less than the query string. We note that rank(select(i)) equals i for each i between 0 and N-1.

Returns the Ith smallest suffix as a string.