Install cl-esrap by entering the following commands in the terminal:
sudo apt update sudo apt install cl-esrap
Description:
Packrat Parsing library for Common Lisp
In addition to regular Packrat / Parsing Grammar / TDPL features Esrap supports dynamic redefinition of nonterminals, inline grammars, semantic predicates, and include introspecive facilities for development.
Homepage: http://nikodemus.github.io/esrap/
Version: 20170630-1
Section: universe/lisp