Harden email redaction pattern
Hard Regex arena: word boundaries, replacements, and avoiding overmatching
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Missing prerequisites: regex-easy-email-redaction
Support exports must mask emails while preserving domain-level debugging information. 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 word boundaries, replacements, and avoiding overmatching in a text-processing challenge room while explaining the invariant, safety constraints, and hidden edge cases.
- Demonstrates word boundaries, replacements, and avoiding overmatching
- Handles the visible sample and hidden edge cases
- Keeps output deterministic and explainable
- Avoids unsafe dynamic execution
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