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A collection of example programs in Pre-Scheme

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Andrew Whatson 5127d52168 Update generated C sources 7 maanden geleden
lib bb2985632c Add zero-seed variant of vector-unfold 1 jaar geleden
.dir-locals.el 4e376f986a Add a basic record demo 1 jaar geleden
.envrc 1426f12be4 Improve the build system using Guix and Make 1 jaar geleden
.gitignore db8a62a0a3 Add a btree example for recursive records 1 jaar geleden
COPYING febe0e7ae6 Add a license, BSD-3 just like Scheme 48 1 jaar geleden
Makefile bf927dea2e Use clang-format to prettify generated C 7 maanden geleden
README.org 5baec1ef56 Update homepage to notabug.org 1 jaar geleden
append.c 5127d52168 Update generated C sources 7 maanden geleden
append.scm 1f1a9239df Add another demo, more advanced packages, generated code examples 1 jaar geleden
btree.c 5127d52168 Update generated C sources 7 maanden geleden
btree.scm d7e7829fee Fix btree-equal? for eq? case 1 jaar geleden
hello.c 5127d52168 Update generated C sources 7 maanden geleden
hello.scm 1f1a9239df Add another demo, more advanced packages, generated code examples 1 jaar geleden
manifest.scm bf927dea2e Use clang-format to prettify generated C 7 maanden geleden
packages.scm db8a62a0a3 Add a btree example for recursive records 1 jaar geleden
ps-init.h 7821441213 Automate calling of static init procedures 7 maanden geleden
recfun.c 5127d52168 Update generated C sources 7 maanden geleden
recfun.scm 4e376f986a Add a basic record demo 1 jaar geleden
vecfun.c 5127d52168 Update generated C sources 7 maanden geleden
vecfun.scm 7821441213 Automate calling of static init procedures 7 maanden geleden

README.org

Pre-Scheme Demo Code

This repository contains some basic examples of Pre-Scheme code, and a simple Makefile for compiling these into native executables.

These examples are based on the one provided in "The Nearly Complete Scheme48 PreScheme Reference Manual" by Taylor Campbell: https://groups.scheme.org/prescheme/1.3/

Source files

  • packages.scm - package definitions
  • lib/ps-string.scm - string utility functions
  • lib/ps-vector.scm - vector functions based on SRFI-43
  • hello.scm - "Hello World" in Pre-Scheme, from the manual
  • append.scm - Yes, you can string-append in Pre-Scheme
  • vecfun.scm - Showing off Pre-Scheme polymorphism with vectors

The generated C for each of the demo programs is also included, so you can review the code generation without needing to build anything.

How to build

The Guix manifest sets up all prerequisites for building the demos, and compilation is handled by the Makefile.

To build the demos yourself:


git clone https://notabug.org/flatwhatson/prescheme-demo.git
cd prescheme-demo
guix shell -m manifest.scm
make

License

This code is licensed under BSD-3-Clause, the same as Scheme 48 and the Pre-Scheme compiler. See COPYING for details.