https://github.com/lynn/cfunc

A Norvig-y Lisp implementation I tried to write in C in 2015 or so
https://github.com/lynn/cfunc

Last synced: 2 months ago
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A Norvig-y Lisp implementation I tried to write in C in 2015 or so

• Host: GitHub
• URL: https://github.com/lynn/cfunc
• Owner: lynn
• License: mit
• Created: 2020-09-17T14:12:08.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2020-09-18T01:32:16.000Z (over 4 years ago)
• Last Synced: 2025-02-28T20:39:50.781Z (3 months ago)
• Language: C
• Homepage:
• Size: 36.1 KB
• Stars: 7
• Watchers: 4
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
I dug this weird little unfinished C implementation of a Lisp out of my Dropbox (dated 2015). It seems to be based on that one [Peter Norvig article](https://norvig.com/lispy.html). Writing C is tricky.

Looking back, it has a fun way of parsing code and making an S-expression tree in one pass. The output is nice and colorful, too. Sadly, it just keeps allocating stuff on a heap until it runs out and dies.

It's 2020 as I write this, so maybe if I let it sit on GitHub for five more years, by 2025 I'll have figured out how to implement garbage collection.

**EDIT**: psych, I implemented mark-and-sweep, maybe

# Usage

```

make

./cfunc examples/map.lisp

```