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https://github.com/programming-nu/nu
Nu is an interpreted Lisp that builds on the Objective-C runtime and Foundation framework.
https://github.com/programming-nu/nu
Last synced: 7 days ago
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Nu is an interpreted Lisp that builds on the Objective-C runtime and Foundation framework.
- Host: GitHub
- URL: https://github.com/programming-nu/nu
- Owner: programming-nu
- License: apache-2.0
- Created: 2008-03-05T18:55:38.000Z (almost 17 years ago)
- Default Branch: main
- Last Pushed: 2023-07-11T17:10:27.000Z (over 1 year ago)
- Last Synced: 2024-11-29T09:06:31.463Z (14 days ago)
- Language: Objective-C
- Homepage: http://programming-nu.github.io
- Size: 4.14 MB
- Stars: 2,150
- Watchers: 79
- Forks: 235
- Open Issues: 19
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
- jimsghstars - programming-nu/nu - Nu is an interpreted Lisp that builds on the Objective-C runtime and Foundation framework. (Objective-C)
README
[](https://github.com/programming-nu/nu/actions/workflows/docker.yaml)
# Introduction
Hello and welcome to Nu.
I created Nu because I wanted a better way to write software.
I wanted to write with a language as flexible and powerful as Lisp, but I
also wanted to be able to work with the many libraries and high-performance
subsystems written in C, including the ones that I write myself. So a tight
integration with C was my highest priority; that ruled and drove the
implementation of Nu. That's why Nu is "C over lambda."
It is easier to integrate with C when you have a disciplined way of structuring
C code. Popular scripting languages (Python, Ruby, Lua, etc.) make many
implementation-dependent impositions on the C code that they call. Their
artifacts are often called "glue code" and are usually ugly, cumbersome, and
unpleasant to generate.
Objective-C provides a proven way of structuring C code that has no scripting
language implementation dependencies. But it can do much more than that.
Objective-C can also serve as a platform for a powerful dynamic language.
Nu was designed to take full advantage of that. It was also designed to
provide many of the elements of successful scripting languages, notably
Ruby, while adding the syntactic simplicity and flexibility of Lisp.
## Legal
Nu is copyrighted open-source software that is released under the Apache
License, version 2.0. For details on the license, see the LICENSE file.
In its use to name a programming language, "Nu" is a trademark of Radtastical
Inc.
## Installation
### Macintosh / Ubuntu
These are the instructions for installing Nu on a Macintosh or Linux system.
Linux builds require several additional dependencies. The included
[ubuntu.sh](ubuntu.sh) script can be used to install these dependencies on
a system running Ubuntu 18.04 (and possibly other versions). Installation
instructions for some other UNIX-based operating systems (Debian, OpenSolaris,
and FreeBSD) are in [notes/OBSOLETE](notes/OBSOLETE) and will probably not
work without modifications. Macintosh and Ubuntu builds are verified with
[Travis](.travis.yml).
If you've installed Nu previously using a package manager (e.g. Fink, MacPorts),
start by using the package manager to uninstall the old version.
#### Building Nu
1. Use make to build mininush, a minimal version of the Nu shell.
```bash
$ make
```
2. Now use mininush to run nuke to complete the Nu build process.
This builds Nu.framework and nush, the Nu shell.
```bash
$ ./mininush tools/nuke
```
#### Installing & Testing
3. Use mininush again to install Nu, nush, and the Nu tools.
```bash
$ ./mininush tools/nuke install
```
Since the copying step uses `sudo`, you will be prompted for your password.
4. Test your installation.
```bash
$ nuke test
```
From now on, you can use the installed nush to run nuke. To see for
yourself, rebuild everything from scratch:
```bash
$ nuke clobber
$ nuke
$ nuke install
```
See the Nukefile for other useful tasks.
### System Requirements
On Macintosh systems, Nu requires Mac OS X version 10.5 or greater.
It is also possible to build Nu to run on Linux systems and the
Apple iPhone.
## Going Further
* [notes/DEMO](https://github.com/timburks/nu/blob/master/notes/DEMO) contains a simple tutorial exercise that can acquaint you with Nu.
* [notes/USAGE](https://github.com/timburks/nu/blob/master/notes/USAGE) describes a few of the ways that you can use Nu.
* [notes/ERRORS](https://github.com/timburks/nu/blob/master/notes/ERRORS) contains some pitfalls that I've encountered when programming with Nu.
* [notes/TODO](https://github.com/timburks/nu/blob/master/notes/TODO) contains some open issues that I'd like to address in Nu.
* The [examples](https://github.com/timburks/nu/tree/master/examples) directory contains several fun and interesting examples.
## Author
Tim Burks ([email protected])
Los Altos, California, USA