Regex Performance Backtracking Fix
Prevent regex-driven latency spikes in import parsing and document validation pipelines.
1. Locate nested quantifiers that can explode on long input.
2. Replace greedy wildcards with explicit token classes.
3. Anchor patterns when full-string validation is required.
4. Add input length caps before regex evaluation.
5. Benchmark worst-case samples in automated tests.
6. Use parser-based checks for highly structured formats.