Install ruby-unf by entering the following commands in the terminal:
sudo apt update sudo apt install ruby-unf
Description:
Wrapper library to bring Unicode Normalization Form support to Ruby
This library allows code to be portable between Ruby implementations, using 'unf_ext' under CRuby and 'java.text.Normalizer' on JRuby. It normalizes UTF-8 strings into and from NFC, NFD, NFKC or NFKD
Homepage: http://github.com/knu/ruby-unf
Version: 0.1.4-2
Section: universe/ruby