Common Lisp submission mechanism for Stanford's MOSS system

Upstream URL


Wojciech S. Gac <>





This is a Common Lisp utility for submitting code to Stanford's MOSS (Measure Of Software Similarity) software similarity detection system. It allows submitting multiple source code files in order to generate a similarity report. The MOSS system only runs on Stanford's servers - you cannot run your own instance. Hence the need for a submission script. This one is mostly a Common Lisp rewrite of a PHP script written by Philipp Helo Rehs (available here).

Supported Languages

Currently supported languages are: C, C++, Java, ML, Pascal, Ada, Lisp, Scheme, Haskell, Fortran, ASCII, VHDL, Perl, Matlab, Python, MIPS assembly, Prolog, Spice, VB, C#, Modula2, a8086 assembly, JavaScript, PLSQL and Verilog


CL-MOSS is ASDF-based. The simplest way to install it is via Quicklisp by running:

CL-USER> (ql:quickload :cl-moss)

If you have a CL-MOSS repo cloned somewhere (e.g. for hacking), you can also make Quicklisp aware of it, e.g. by creating a symlink to it in your local-projects directory and then run:

CL-USER> (ql:quickload :cl-moss)

Example Usage

Below is a sample usage session:

CL-MOSS> (defparameter *moss* (moss-initialize "<user-id>"))
CL-MOSS> (set-language *moss* :lisp) ; string value is also fine
CL-MOSS> (add-base-file *moss* "project/example.lisp")
CL-MOSS> (add-by-wildcard *moss* "project/src/*.lisp")
CL-MOSS> (set-comment-string *moss* "Let's analyze some code similarities!")
CL-MOSS> (send *moss*)
-> "<submission-id>"

Last step should yield a URL where you can view the results of the analysis of your submitted files.

Dependencies (1)

  • usocket

Dependents (0)

    • GitHub
    • Quicklisp