FIX to Locally Compressed Suffix Arrays
The analytical results of the paper, claiming O(rho log(n/rho)) space for
the LCSA, are not properly proved and most likely are incorrect;
see Appendix A in https://arxiv.org/pdf/1705.10382.pdf.
An alternative grammar compressor achieving this space is given in that
In practice RePair compresses much better than the variant that offers a
guarantee, and the value of the paper is mostly practical.