Remaking a rule-engine DSL

1. mal

   1 100 10,150 9.6 Assembly

   mal - Make a Lisp

   

   So this time I needed to tokenize, and perform the lexer on my own. If I only deal with numbers, everything is easy, but when it comes to string things get more complicated. I followed another tutorial, and rediscovered make-a-lisp project. Eventually I gave up, and used the lexer provided by hy-lang.

2. SaaSHub

   www.saashub.com featured

   SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

   

3. ruler

   2 1 0 - JavaScript

   A rule dsl language parser in Javascript (by Jeffrey04)

   There’s no real advantage to the new implementation, as I have left the job for a few years. The implementation I left probably still runs well to this date (it better be after so many iterations that led to it). However, I do still learn a thing or two throughout this journey. If you find this interesting, feel free to check out the Javascript (where it expects rule schema in array), or the new Python version (s-expression).

4. genruler

   3 1 0 7.6 Python

   Full lispy implementation of ruler

   

   There’s no real advantage to the new implementation, as I have left the job for a few years. The implementation I left probably still runs well to this date (it better be after so many iterations that led to it). However, I do still learn a thing or two throughout this journey. If you find this interesting, feel free to check out the Javascript (where it expects rule schema in array), or the new Python version (s-expression).

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