Simon Willison’s Weblog

4th April 2008 - Link Blog

Implementing a syntax-higlighting JavaScript editor in JavaScript. Appropriately subtitled “a brutal odyssey to the dark side of the DOM tree”. Some seriously clever trickery going on here.

Posted 4th April 2008 at 8:27 am

Recent articles

Writing about Agentic Engineering Patterns - 23rd February 2026
Adding TILs, releases, museums, tools and research to my blog - 20th February 2026
Two new Showboat tools: Chartroom and datasette-showboat - 17th February 2026

This is a link post by Simon Willison, posted on 4th April 2008.

dom 13 javascript 743 syntaxhighlighting 4

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