Simon Willison’s Weblog

25th November 2003 - Link Blog

How Regexes Work (via) They’re just simplified syntax for constructing a state machine

Posted 25th November 2003 at 12:27 am

Recent articles

New release of LLM adds support for reasoning traces, OpenAI Responses, server-side tools, and smarter logging - 4th August 2026
Stateless MCP has recaptured my interest (and inspired mcp-explorer and datasette-mcp) - 31st July 2026
OpenAI’s accidental cyberattack against Hugging Face is science fiction that happened - 22nd July 2026

This is a link post by Simon Willison, posted on 25th November 2003.

Monthly briefing

Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments.

Pay me to send you less!

Sponsor & subscribe