The author shares a TypeScript/JavaScript DSL for writing readable regular expressions, directly inspired by Emacs' rx macro. It aims to solve the common pain point of maintaining complex, unreadable regex patterns by providing a declarative API.
Background
Emacs has included the rx macro for building regexps in a readable Lisp-style syntax for decades. The author ported this concept to TypeScript/JavaScript for personal projects dealing with complex regex patterns like semver validation.
- Source
- Lobsters
- Published
- Oct 2, 2026 at 04:20 PM
- Score
- 5.0 / 10