This is an implmentation of the Zephyr ASDL language as described in this 1997 paper by Wang, Appel, Korn and Serra.

ASDL is a domain-specific language that is used to describe syntax of a language. You specify tree grammars, and these tree grammars are translated into C code. This C code contains the Abstract Syntax Tree declarations and definitions.

There are plans to add more translations. D, Rust and Python would be good.

You can read the documentation for this program at extras/MANPAGE.md. There's a lot of goodies available at extras directory.

Currently, 3 revisions has been made to this program. Please view them via CHANGELOG.md. As such, the documentation is outdated. Please see examples/shell.asdl for an updated example.

You need:

1- An implementation of Lex, e.g. Flex

2- An implementation of Yacc, e.g. Bison

3- Perl

Under a Debian-based distro, you may install these with:

sudo apt-get install perl5 flex bison

After installing these, you may:

make && sudo make install

After that, bring up the manpage and see what is added to the language:

man 1 asdl

You can also view the Texinfo with:

info asdl

The manpage and the Texinfo are available in extras under manual.html and guide.html. After installing, these files, along with examples, and everything within extras will be copied to /usr/local/share/doc/asdl. If you install via a package manager, omitt /local.

Windows is now equipped with WSL2, which you may use to run this program.

If you need to contact me, you can do so via email: chubakbidpaa [at] riseup [dot] net.

Thanks to anyone who uses this program.