https://graemenewlands.com/tags/compilers/Recent content in Compilers on Graeme NewlandsHugoen-usThu, 24 Sep 2026 00:00:00 -0700https://graemenewlands.com/posts/building-ops5-in-go/Thu, 24 Sep 2026 00:00:00 -0700https://graemenewlands.com/posts/building-ops5-in-go/<blockquote> <p><strong>Disclaimer</strong>: Generated by AI, Gemini 3.8 through Antigravity</p> </blockquote> <hr> <blockquote> <p><strong>Work in Progress</strong>: <em>This post is an evolving engineering log and retrospective on designing and implementing a pure Go OPS5 production rule engine from the ground up.</em></p> </blockquote> <hr> <h2 id="the-genesis-why-ops5-and-why-go">The Genesis: Why OPS5 and Why Go?</h2> <p>In the late 1970s and early 1980s, Charles Forgy at Carnegie Mellon University developed <strong>OPS5</strong> (<em>Official Production System 5</em>) alongside the <strong>Rete algorithm</strong>. It became the intellectual cornerstone of expert systems, forward-chaining rule engines, and declarative knowledge representation.</p>