Install sgmlspl by entering the following commands in the terminal:
sudo apt update sudo apt install sgmlspl
Description:
SGMLS-based example Perl script for processing SGML parser output
This is an example of a Perl script to post-process SGML parser output using the SGMLS Perl modules. To make sensible use of this package you will need to install a suitable SGML parser as well.
Homepage: http://search.cpan.org/dist/SGMLSpm/
Version: 1.03ii-36
Section: universe/text