Simon Willison’s Weblog

Unicode Regular Expressions. [a \U00010450] Match “a” or U+10450 SHAVIAN LETTER PEEP

Posted 3rd March 2004 at 3:06 am

Recent articles

I think "agent" may finally have a widely enough agreed upon definition to be useful jargon now - 18th September 2025
My review of Claude's new Code Interpreter, released under a very confusing name - 9th September 2025
Recreating the Apollo AI adoption rate chart with GPT-5, Python and Pyodide - 9th September 2025

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