REGULAR-EXPRESSIONS5 MIN READ
Sort pattern requirements by owner
Classify text-processing requirements by the layer that should own them.
Place each upload requirement in the layer that should own it first. Regex pattern Parser or file reader Business logic Human review SKU must look like PRD-123456 Contact email must have one @ and a plausible domain shape A quoted campaign name may contain commas Metadata column contains nested JSON Customer ID must exist and be active in CRM Campaign budget must not exceed the account limit Strategic partner can omit region code with manager approval Notes mention two possible owner teams
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