Simon Willison’s Weblog

Lexical Analysis, Python-style (via) Clever trick using named groups in regular expressions.

Posted 28th April 2005 at 3:02 pm

Recent articles

Video: Building a tool to copy-paste share terminal sessions using Claude Code for web - 23rd October 2025
Dane Stuckey (OpenAI CISO) on prompt injection risks for ChatGPT Atlas - 22nd October 2025
Living dangerously with Claude - 22nd October 2025

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