cl-lml2 software package provides Lisp Markup Language, 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-lml2
cl-lml2 is installed in your system.
Make ensure the cl-lml2 package were installed using the commands given below,
$ sudo dpkg-query -l | grep cl-lml2 *
You will get with cl-lml2 package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Lisp |
| Package | cl-lml2 |
| Version | 1.6.6-4 |
| Description | Lisp Markup Language |
| Sub Section | Lisp |