25K views · Feb 23, 2014 · 1:06:26 · 1 HN recommender · 3 mentions · discussed 2017–2025
Samuel Falvo II live-codes a text preprocessor and blog engine in Forth over about an hour. It shows Forth's dictionary being snapshotted and restored in place of mutation, and how a small Forth system gets real work done.
Why Hacker News points people here: Cited as a concrete look at Forth in action, including its snapshot/restore dictionary model.
“Sam Falvo demonstrates writing a blog engine in Forth.”HN comment, 2019
“I recommend the video.”
Fun video to see Forth in action
This is a great resource and running in the browser is great for fast feedback. Thanks for sharing! I just started learning Forth a month or so ago, and I found this video from Andreas Wagner[1] fun to watch. If anyone goes through OP's book and find yourself wanting to see Forth in action, I recommend the video. [1]: this video
“Instead of mutation, offers snapshots and restores of the “dictionary”. See this video”
Forth's dictionary snapshots and restores instead of mutation
Clojure is following in the tradition of lisps that do this right. The important bit is the extra indirection on top-level names. I wrote more about it here a long time ago: link Also interesting is the other end of the spectrum: Forth. Instead of mutation, offers snapshots and restores of the “dictionary”. See this video: this video
“Sam Falvo demonstrates writing a blog engine in Forth.”
Sam Falvo writes a blog engine in Forth
"Over the Shoulder 1 - Text Preprocessing in Forth" this video - Sam Falvo demonstrates writing a blog engine in Forth.
