Harden unicode slug sanitizer
Hard Regex arena: Unicode classes, normalization, and safe replacements
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Missing prerequisites: regex-easy-unicode-slug
A CMS accepts international titles but must produce stable URL slugs. You are working inside a text-processing challenge room, and the arena only clears when the result is safe, deterministic, and explainable.
Learn to apply Unicode classes, normalization, and safe replacements in a text-processing challenge room while explaining the invariant, safety constraints, and hidden edge cases.
- Demonstrates Unicode classes, normalization, and safe replacements
- Handles the visible sample and hidden edge cases
- Keeps output deterministic and explainable
- Avoids unsafe dynamic execution
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