🚀 go-pugleaf

In article <41910@skye.dcs.ed.ac.uk>, gvw@epcc.ed.ac.uk (Greg Wilson) writes:
|> [apologies if this is a re-post --- problems first time around]
|> 
|> Hello.  I am looking for a small language to use and modify for teaching
|> purposes.  Features I want include:
|> 
|> * small, simple implementation in C (at most one week for a senior
|>   student with a C/Unix background to read and understand source).
|> 
|> * very simple syntax --- preferably only a single syntactic form,
|>   like Scheme, Logo, and Forth.
|> 
|> * textual scoping of variables (which (sigh) rules out Logo itself)
|> 
|> * logical, integer, floating-point, and string data types (I'm
|>   happy to have single characters treated as 1-length strings)
|>  ...
You can try siod (Scheme In One Defun, Version 2.4)
available at world.std.com, BU.EDU (128.197.2.6), or try archie.
(If you like, I can mail it to you.)

Some advertisement copied from an other news group copied from \ldots:
(Don't know the original poster)
vvvvvv
What is SIOD? It is an extremely small scheme implementation in C
arranged as set of subroutines that can be called from any main
program for the purpose of introducing an interpreted extension
language.

How small is it? Compiling using the VAX/VMS C compiler results in a
total of 16333 bytes of executable code.

What features?
 * Lisp calls C and C calls lisp transparently
 * no hassle in C coded functions due to GC or EVAL considerations.
 * ability to hook into the read-eval-print loop without modifying the code.
 * ability to extend the datatypes without modifying the code.
 * mark-and-sweep or stop-and-copy GC selectable at runtime.
 * readmacros
 * macros
 * backquote (quasi-quote)
 * optionally loadable pratt (infix-language) parser

Platforms?
 * VAX/VMS * VAX UNIX * SUN-3 * SUN-4 * AMIGA * MACINTOSH * MIPS * CRAY
^^^^^^^

If you wan't a more complex system try kernel, a dynamic lisp interpreter
published (source code included) at Addison Wesley
(or try my extensions to it).

MfG

Klaus Elsbernd

elsbernd@dfki.uni-kl.de
elsbernd@informatik.uni-kl.de