Amethyst provides Ruby-like syntax for Perl. The aim of the project is to let programmer use most CPAN modules, but with clean, functional and object-oriented Ruby way.
How well it works?
The code is meant as proof of concept, if you use it in production you're a crazy person (also you're awesome!).
There are many problems with this approach, including:
- Perl does not differentiates between
Integer. We must hack a lot, as we don't want a
MagickStringAndIntegerAtTheSameTimeclass Maybe we should embed every scalar in
- List and scalar context - ouch.
As a rule, all variables in Amethyst are scalars,
so Array variables are merely references to Perl Arrays.
I think using
*xhere and there should provide most of the bridging needed.
- Namespacing is completely different in Perl and Ruby. Some technically-sound middle-ground must be found.
- Implementing Lexical scoping will be difficult, especially with this ad-hoc text-only approach to code generation.
- Exceptions ... ouch
To test, run:
$ ./amethyst.pl examples/strint.am
For parser or compiler steps only:
$ ./amethyst_parser.pl examples/strint.am $ ./amethyst_compiler.pl examples/strint.am
To learn how to use Amethyst look at examples/ directory. There's no other documentation.
It's a one-liner quality code. There's no error detection/correction. On parse errors, the parser ignores the rest of the code, and doesn't even say something went wrong. It may randomly blow at you.
amethyst_parser.pl needs Data::Dump module from CPAN to pretty-print ASTs. Amethyst itself doesn't have any external dependencies.
Do whatever you want as long as you preserve attribution. (for longer legalese take any MIT/BSD license)
If you have any questions, contact me: Tomasz Wegrzanowski Tomasz.Wegrzanowski@gmail.com