Plot is a toy scheme interpreter written in C.
Plot is aiming for r7rs-small (WG1) compliance.
Plot is only ever intended to be a toy language and a purely academic pursuit, I hope to eventually play around with writing simple applications in plot.
plot - Noun; A plan made in secret by a group of people to do something illegal or harmful
For an up-to-date summary or plot's implementation status see docs/r7rs-small-compliance.md
brief summary of r7rs library implementation status (see make compliance):
./build/compliance.pl
base: 102 / 237 (43%)
case-lambda: 0 / 1 (0%)
char: 17 / 22 (77%)
complex: 0 / 6 (0%)
cxr: 0 / 24 (0%)
eval: 0 / 2 (0%)
file: 2 / 10 (20%)
inexact: 0 / 12 (0%)
lazy: 4 / 5 (80%)
load: 0 / 1 (0%)
r5rs: 108 / 217 (49%)
read: 0 / 1 (0%)
repl: 0 / 1 (0%)
time: 0 / 3 (0%)
write: 1 / 4 (25%)
total: 234 / 546 (42%)
NB: the above conformance report is measuring functions that are exposed to plot programs, many of those functions may still be lacking complete implementation.
example: (see make example)
(define (println v)
(display v)
(newline))
(define adder
(lambda (b)
(lambda (c)
(+ b c))))
(define tmp (adder 10))
(println (tmp 15)) ;; => 25
(define b (* (- 12 3) 4 5 6))
(println b) ;; => 1080
(println (<= 1 1 2 3 5 10)) ;; => #t
(println (/ 10 2 2)) ;; 10/2 = 5; 5/2 = 2; => 2
(println (procedure? display)) ;; => #t
(println (if #t "hello there" (illegal))) ;; => hello there
Plot is aiming for (mostly) r7rs-small (WG1) compliance.
The current planned exception is to omit continuations.
For a more accurate picture please see docs/r7rs-small-compliance.md.
- libc
- lib check is used for unit testing, in debian derived systems this is simply 'check' (
sudo apt-get install check) - perl is used as part of the build process to generate bindings between scheme functions and their c implementations
Plot is still in it's infancy so does not yet offer an automatic installation method.
You are able to compile and run plot manually though:
git clone git@github.com:mkfifo/plot.git
cd plot
make
./plot t/examples/example.scm
You are also able to test the plot build via
make test
Plot is released under the terms of the MIT License