Gosub is a newly launched, Rust‑written open‑source browser engine that offers modular, high‑performance HTML5 and CSS3 parsing, a rendering engine, JavaScript bridge, and WebAssembly support, inviting contributors to help build a flexible alternative to dominant browsers.
The article walks through building a simple JavaScript HTML parser by explaining browser parsing basics, using regular expressions to detect tags, managing a stack to match opening and closing elements, creating element and text node objects, and outlining code snippets while noting omitted features like script and style handling.
This article explains how to create a basic HTML parser in JavaScript by using regular expressions and a stack to convert an HTML string into a tree of nodes, complete with code examples, initialization steps, and handling of opening, closing, and self‑closing tags.
