cl-esrap software package provides Packrat Parsing library for Common Lisp, you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install cl-esrap
cl-esrap is installed in your system.
Make ensure the cl-esrap package were installed using the commands given below,
$ sudo dpkg-query -l | grep cl-esrap *
You will get with cl-esrap package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Lisp |
| Package | cl-esrap |
| Version | 20160825-1 |
| Description | Packrat Parsing library for Common Lisp |
| Sub Section | Lisp |