Old Comment(2023)
Actually, very little has changed in TeX←Scm itself since I posted it a year ago. What is new is that it has been evaluated by Guile 3, and this page is served by a "cloud" computer. I have some notes on both Compiling Guile 3 from source and Moving from the basement to the cloud.
Update 2025-06-29
I am partway through a major revision of TeX←Scm, which I call version 3, even though there were no versions 1 or 2. I am doing something I did not do before; I am documenting what the user interface will be before I hack together the code to make it work. Here is a first draft of the manual.
I have decided to make this more interactive by putting here what I am working on now. Maybe somebody else will have comments or remarks.
I am using a idiosycratic version numbering system. Version 3 is the program that does what the manual says it should do. It does not exist yet. The currently closest approximation is called version 3-1/7. I am actively making changes to version 3-1/8 and will put it here when it can process itself. When n is big enough the program will match the manual and version 3-1/n will become version 3.0.
Printable version of the program. Get this first. texscm3-y.pdf (597 Kbytes)
Program source code (in Scheme of course). texscm3.scm (101 Kbytes)
Some TeX macros you'll need to use the program. tspreamble.tex (1 Kbytes) and the Makefile Makefile (1 Kbytes)
This started (partially) because I wanted to understand the so-called "hygenic" or "referentially transparent" macros of Scheme. I thought that a program to print macro identifiers in bold face and variables in italic would be a good exercise. I went down that path for a long time. I'm not lost, but I do wander.