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Expliqueur Regex
Expliquez ce qu'une expression régulière correspond, jeton par jeton, et marquez les constructions qui causent un backtracking catastrophique.
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Developer
Regex Explainer
Frontend preview — no upload or external service.
Explanation
Anchored at start, captures one or more word characters, then @, then a host group, then a dot and a 2+ letter TLD, anchored at end. No nested quantifiers — safe from backtracking blowup.
How Expliqueur Regex works
- Open Expliqueur Regex and review the example state before entering your own values.
- Enter or select the information needed for Expliqueur Regex.
- Review the result and adjust the inputs if you want to compare another case.
Explain what a regular expression matches, token by token, and flag the constructs that cause catastrophic backtracking. The interactive workspace runs in your browser, so you can review the result without creating an account.
FAQ
What is Expliqueur Regex used for?
Explain what a regular expression matches, token by token, and flag the constructs that cause catastrophic backtracking.
Do I need an account?
No. The tool is available directly in the browser without an account or sign-up.
What should I do if the result looks unexpected?
Check the entered values and compare them with the guidance shown in Expliqueur Regex. Use the result as a planning aid and verify important decisions independently.