3.4 KiB
d8888b. d88888b d888888b d8888b. .d88b.
88 `8D 88' `~~88~~' 88 `8D .8P Y8.
88oobY' 88ooooo 88 88oobY' 88 88
88`8b 88~~~~~ 88 88`8b 88 88
88 `88. 88. 88 88 `88. `8b d8'
88 YD Y88888P YP 88 YD `Y88P'
Retro is a modern, pragmatic Forth drawing influences from many sources. It's clean, elegant, tiny, easy to grasp, and adaptable to many tasks.
Features
- Open Source (ISC License)
- Portable (runs on a MISC-style virtual machine)
- Small source & binaries
- Builds into a single, self contained binary
- Sources in literate format, using a Markdown variant
Quick Start
For most systems (FreeBSD, NetBSD, OpenBSD, macOS, Linux):
make
You will need a standard C compiler and make.
Executables
Binaries will be placed in the bin directory.
The primary executable is retro. This is used for running the
examples and the Atua (gopher) & Casket (http) servers that
power retroforth.org.
The retro executable embeds the image into the binary, making
it trivial to copy and deploy.
This interface layer also extends the language with many new words and vocabularies, adds scripting, files, floating point, and more.
The retro executable can handle a variety of command line
arguments which are covered in the manpage, but the most common
ones are:
retro
Starts the listener, a basic REPL for interactive use.
retro filename
This will run the code in the specified file, then exit. This
is also used to run programs as shell-type scripts using a
header line like #!/usr/bin/env retro.
retro -i -f filename
This will run the code in the specified file, then start the listener.
Literate Sources
Source files for use with retro are written with code in
fenced blocks:
commentary here
~~~
code here
~~~
Anything outside the fenced blocks will be ignored.
Documentation
The primary documentation is in RETRO-Book.md (and the formatted
epub.) Additional notes can be found in the doc directory.
Alternative Implementations
In addition to the C and Python implementations, this source tree includes additional implementations in C#, Nim, JavaScript, and Pascal. These are not as well tested or as feature complete as the main implementations, but are provided for your use if the standard implementations will not suffice.
Learn More
Visit http(s)://retroforth.org to learn more and follow along with development.
Patreon
I have a Patreon at https://www.patreon.com/_crc for those that want to financially support development. All funds raised via Pateron are put into development related expenses (server expenses, app store fees, hardware).
Thanks go out to my current and past patrons:
- Kiyoshi YONEDA
- Krinkleneck
- Rick Carlino
- Scott McCallum
- Bartels Jon Randy
- Nuno
- Eli
- Brad S
- Tobias Ammann
- oneearedrabbit
- Octavio Turra