https://github.com/joefarebrother/scheme

A scheme interpreter and compiler
https://github.com/joefarebrother/scheme

Last synced: 2 months ago
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A scheme interpreter and compiler

• Host: GitHub
• URL: https://github.com/joefarebrother/scheme
• Owner: joefarebrother
• Created: 2013-12-21T14:30:27.000Z (about 11 years ago)
• Default Branch: master
• Last Pushed: 2014-12-10T18:34:52.000Z (about 10 years ago)
• Last Synced: 2024-04-24T16:14:44.149Z (9 months ago)
• Language: C
• Size: 320 KB
• Stars: 1
• Watchers: 1
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

• AwesomeInterpreter - scheme

README

        
scheme

======

(what will be) A scheme compiler

The bootstrap directory contains the following:

bootstrap.c is a bootstrap interpreter for scheme, intended for bootstraping compile/compile.scm (currently non-existant because git doeesn't track empty directories).

prims.c contains the primitive procedures for the bootstrapper

lib.scm implements a standard library for the bootstrapper to run.

To test, type at a terminal:

```shell

$ make

$ ./bootstrap/bootstrap

> (load "bootstrap/lib.scm")

```

prims.c currently defines:

- char->integer

- integer->char

- number->string

- string->number

- symbol->string

- string->symbol

- boolean?

- char?

- integer?

- pair?

- symbol?

- procedure?

- string?

- port?

- +

- -

- *

- quotient

- remainder

- =

- <

- >

- cons

- car

- cdr

- set-car!

- set-cdr!

- eq?

- string-append

- apply

- eval

- exit

- interaction-enviroment

- enviroment

- null-enviroment

- open-input-file

- read-char

- unread-char (non-standard) - (unread-char char port) pushes a character back to an input port

- eof-object?

- close-input-file

- read

- load

- open-output-file (takes a non-standard optional second argument a symbol indicating what to di if it already exists: overwrite or append. Default is overwrite.)

- close-output-file

- write-char

- write

- display

- error

- string-append

- system (non-standard) - excecutes shell code

- gensym

bootstrap.c currently recognises the following special forms:

- if

- set!

- define

- quote

- lambda

- begin

- cond, including =>

- let

- and

- or

- declare (non-standard) - ignored by the interpreter, the compiler will use them to aid compilation

bootstrap/lib.scm defines:

- number?

- list

- not

- append (varadic version)

- length

- reverse

- vector? (always false)

- range

- map

- filter

- foldl

- foldr

- accumulate

- all c...r functions

- memq

- memv

The following (non-standard) variable is availiable on startup:

 - args - command line arguments

Currently tested on Ubuntu only.

SHOULD work on all OSs currently (though untested) but I only plan to support unix.