Install xindy-rules by entering the following commands in the terminal:
sudo apt update sudo apt install xindy-rules
Description:
rule files for xindy
xindy is an index processor that can be used to generate book-like indexes for arbitrary document-preparation systems. . This package contains the rule files (the knowledge base) of xindy.
Homepage: http://www.xindy.org/
Version: 2.5.1.20160104-4build1
Section: universe/text