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PROMPT
What this prompt does
- Builds the expression from your real examples and counter-examples.
- Explains every component so the expression is maintainable by someone else.
- Supplies inputs that break it, which is where most regex bugs come from.
Tips for this prompt
- Counter-examples matter more than examples. Give it the strings that must not match.
- Always name the flavour – escaping rules differ enough to matter.
- Take the simpler version seriously if this will live in code someone else maintains.
How to use the prompt
- Copy the prompt and replace everything in curly braces with your own details.
- Paste it into your AI tool of choice and send.
- Ask a follow-up if you want the output in a different format.
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