Add new Perl (perl.2) implementation

[ingydotnet]

I'm working on a YAML syntax Lisp called YAMLScript that will work in many languages.

I realized I really needed to learn how to implement a Lisp.

I found this project and completed the adventure.

This PR is for the perl.2 base implementation.

I'll be submitting a yamlscript implementation PR soon.

[kanaka]

Hello @ingydotnet sorry for the very slow reply (I've been unable to work on this project for the past couple of years but I'm am now able to again). If you're still interested in getting this merged upstream I would ask that you do the following:

• Is this implementation unique or interesting in some way compared to the existing perl implementation. If it is, then I'm happy to consider merging it. If not, I can add a link to your repo to the "Other Implementations" section of the top-level README.
• Rebase the code onto the current HEAD
• The recommended process has changed slightly: the eval_ast is no longer seperate from eval and macroexpand is not longer a standalone function. It would be good if you could update to follow the new structure.
• Make sure that the Github CI tests all pass for your implementation (this should happen more automatically now without needing me to manually create docker images as part of the process).

[ingydotnet]

Hello @ingydotnet sorry for the very slow reply (I've been unable to work on this project for the past couple of years but I'm am now able to again). If you're still interested in getting this merged upstream I would ask that you do the following:

Greetings @kanaka! Boy do I have a lot to share with you!
The MAL project was a catalyst for what seems like my entire life for the past 15 months.
It led me to create 2 new programming languages, Lingy (a Clojure platform for Perl) and YAMLScript.
I invented and maintain the YAML data language, and YS takes it to the next level.
I've given at least 4 conference talks about YS this year and talked about MAL in each one.
I'd love to chat with you about all this if you're keen.

Best options are:

• YAML Matrix Chat
• Clojure Slack
• Email Me

[kanaka]

@ingydotnet That's awesome stuff! I'll ping you on clojurians Slack.

[ingydotnet]

I think I can close this PR. There's nothing particularly novel about it iirc.

I hope to make a YAMLScript implementation soon and submit a PR for that.

That would bring me full circle!!