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https://github.com/chrisosaurus/plot

toy r7rs-small (WG1) scheme interpreter
https://github.com/chrisosaurus/plot

Last synced: 3 months ago
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toy r7rs-small (WG1) scheme interpreter

Host: GitHub
URL: https://github.com/chrisosaurus/plot
Owner: chrisosaurus
License: mit
Created: 2013-10-01T08:26:21.000Z (over 10 years ago)
Default Branch: master
Last Pushed: 2018-06-12T00:43:19.000Z (about 6 years ago)
Last Synced: 2024-01-17T04:02:52.817Z (5 months ago)
Language: C
Homepage:
Size: 3.51 MB
Stars: 15
Watchers: 4
Forks: 1
Open Issues: 0
Metadata Files:
- Readme: README.md
- License: LICENSE

Lists

AwesomeInterpreter - plot

README

        plot

====

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.

naming

-------

plot - Noun; A plan made in secret by a group of people to do something illegal or harmful

current state

-------------

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

planned work

------------

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`.

dependencies

------------

* 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

running

----------

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 [email protected]:mkfifo/plot.git

    cd plot

    make

    ./plot t/examples/example.scm

You are also able to test the plot build via

    make test

license

---------

Plot is released under the terms of the MIT License