Nomsu (named after Nomic, and its creator, Peter Suber) is a programming language designed to be used for playing games of Nomic, or engaging in other similar activities revolving around natural language rule-making and self modification.

The language compiler was written in Moonscript, using the LPEG library for parsing. LPEG is a dependency, so you need to install it in order to run the compiler. All of the moon files have been compiled into lua for convenience, so Moonscript is not a dependency.

In order to run a .nom file, run lua nomsu.lua your_file.nom. Code can also be compiled into lua code directly, which still requires nomsu.lua as a dependency, but bypasses the compilation phase when it runs. To compile, run lua nomsu.lua your_file.nom output_file.lua which produces an output file which can be run with the command lua output_file.lua.

Example code can be found in the examples folder.

lib/core.nom contains some extremely helpful and basic core functionality for the language, written in the language itself, so I recommend adding require "lib/core.nom" to the top of your files.

There is a vim plugin for the language available in the Vim Nomsu repository.