Lisp (mostly Common-Lisp)

• For ELisp, see my Emacs page.
• Redshank, Common Lisp Editing Extensions (for Emacs)
• CLAWK, an AWK implementation embedded into Common Lisp
• CL-DOT, for generating dot (a program in the GraphViz suite) output from Lisp data
• tokenizer.lisp, an implementation Erik Naggum's PARSE-DELIMITED-LIST design (SPLIT-SEQUENCE on steroids)
• copy-instance.lisp, a generic implementation of (shallow) object copying (CLOS)
• defpackage-form, recreating source forms from Common Lisp packages
• MW-EQUIV, An Extensible Object Equivalence for Common Lisp
• How to add page numbers to PDF files
• Initial TBNL support for multipart/form-data Web forms, including file uploads (see RFC2388).
• diff-sexp calculates diffs between two s-expressions.
• bottle-song.lisp, prints the Bottle Song.
• CLIM Sokoban, a small hack (not yet finished), started as personal evaluation of McCLIM:

  I wrote a text-mode Sokoban in Common-Lisp quite some time ago, and now beefed it up a little with a CLIM GUI. Sokoban is easy enough that it does not get in the way when trying out technologies, and still one can make good use of a number of language features. Besides, Sokoban is interesting from other points of view. :)

  Getting up to speed in CLIM is very easy, and I was pleasantly surprised how fast I could see results. It basically took two weekend afternoons, without prior CLIM knowledge. Not too shabby for learning a completely new toolkit.

  CLIM sports a wealth of readily available functionality, like caching unchanged screen areas, redrawing them only on demand (activated by adding a couple of options).

  The Annotated CLIM Specification turned out to be most helpful, as well as the #lisp crowd at Freenode (as usual).

"...Please don't assume Lisp is only useful for Animation and
 Graphics, AI, Bioinformatics, B2B and E-Commerce, Data Mining,
 EDA/Semiconductor applications, Expert Systems, Finance, Intelligent
 Agents, Knowledge Management, Mechanical CAD, Modeling and Simulation,
 Natural Language, Optimization, Research, Risk Analysis, Scheduling,
 Telecom, and Web Authoring just because these are the only things they
 happened to list." 
 -- Kent M. Pitman