taskSavannah Administration - Tasks: task #8704, Submission of COMMA Compiler


task #8704: Submission of COMMA Compiler

Submitted by:  Stephen Wilson <swilson>
Submitted on:  Wed 01 Oct 2008 11:28:55 PM UTC  
Should Start On:  Wed 01 Oct 2008 12:00:00 AM UTC Should be Finished on:  Sat 11 Oct 2008 12:00:00 AM UTC
Category:  Project Approval Priority:  5 - Normal
Status:  Done Privacy:  Public
Percent Complete:  0% Assigned to:  Alexander Shulgin <alexshulgin>
Open/Closed:  Closed Effort:  0.00

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Fri 05 Dec 2008 07:27:05 AM UTC, comment #4:


I approved your project.  Welcome on board! :)

When uploading the sources please add LICENSE.txt which should contain MIT license as stated in copyright headers.

Also, adding copyright/license headers to files in examples/ won't hurt.  If you want them in public domain, stating this explicitly at the top of the file might help. ;)

Happy hacking!

Alexander Shulgin <alexshulgin>In charge of this item.
Thu 04 Dec 2008 07:18:03 PM UTC, comment #3:

Hi Alexander,

Yes, I am still interested in using Savannah.


Stephen Wilson <swilson>
Thu 04 Dec 2008 09:39:47 AM UTC, comment #2:


Sorry for delay.

Are you still planning to use Savannah?  If not, please tell
us--this will make us gain some time to review other projects.


Alexander Shulgin <alexshulgin>In charge of this item.
Thu 09 Oct 2008 08:52:11 PM UTC, comment #1:


On the off chance that a bit of documentation might help with the
registration, I have started writing a very basic document
describing this system.  This work-in-progress is available here:




Stephen Wilson <swilson>
Wed 01 Oct 2008 11:28:55 PM UTC, original submission:

A new project has been registered at Savannah
This project account will remain inactive until a site admin approves or discards the registration.

Registration Administration

While this item will be useful to track the registration process, approving or discarding the registration must be done using the specific Group Administration page, accessible only to site administrators, effectively logged as site administrators (superuser):

Registration Details

  • Name: COMMA Compiler
  • System Name:  comma
  • Type: non-GNU software & documentation
  • License: Expat License (sometime refered to as MIT License)


This is yet another programming language/compiler.

The system is a descendant of the SPAD and Aldor programming
languages.  Both were designed to permit generic implementations of the mathematical algorithms one can find within a computer algebra system.  They provide a static type system very useful when expressing abstract mathematics.

SPAD is internal to the Axiom CAS (hosted on Savannah) and is free software.  Unfortunately, it is not a robust implementation, and would be very difficult to improve (written in a language nobody knows; BOOT).

Aldor is a "next generation SPAD" (see aldor.org), but is not under a GPL compatable license.

COMMA borrows from the 30+ years of the spad/aldor family, and from other modern improvements in programming language design. It aims to be maintainable, well documented, etc.

The current implementation is in Common Lisp at around 7000 lines of code.  It "works" but is still in an early stage.  A public forum to base its future development is needed to bring a small but passionate group of mathematicians and enthusiasts together.

Other Software Required:

One file, slit-sequence.lisp, is public domain code.

Tarball URL:


Stephen Wilson <swilson>


(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

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Depends on the following items: None found

Items that depend on this one: None found


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    Follow 4 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2008-12-05 alexshulgin StatusWait reply => Done
        Assigned toNone => alexshulgin
        Open/ClosedOpen => Closed
    2008-12-04 alexshulgin StatusNone => Wait reply

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