Asteroid is available from the PyPI project website pypi.org/project/asteroid-lang and is installed using:
$ pip install asteroid-lang
The should work on Unix-like and Windows systems, though you may have to use pip3 or some other variation.
Don’t forget to add the bin directory where pip installs programs to your PATH variable.
In addition to installing Asteroid directly on your machine, there is also a cloud-based Linux virtual machine that is completely set up with an Asteroid environment and can be accessed at Repl.it.
Running the Asteroid Interpreter¶
You can now run the interpreter from the command line by simply typing asteroid. This will work on both Windows and Unix-like systems as long as you followed the instructions above. To run asteroid on Unix-like systems and on our virtual machine,
$ cat hello.ast -- the obligatory hello world program load system io. io @println "Hello, World!". $ asteroid hello.ast Hello, World! $
On Windows 10 the same thing looks like this,
C:\> type hello.ast -- the obligatory hello world program load system io. io @println "Hello, World!". C:\> asteroid hello.ast Hello, World! C:\>
As you can see, once you have Asteroid installed on your system you can execute an Asteroid program by typing:
asteroid [flags] <program file>
at the command prompt. Asteroid also supports an interactive mode:
$ asteroid Asteroid Version 1.1.3 Type "asteroid -h" for help Press CTRL-D to exit ast> load system io. ast> io @println "Hello, World!". Hello, World! ast>