priscillatrevizan/regex-generator

[FEATURE] Add CNPJ format validator generator

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#15 opened on Oct 11, 2025

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Description

1. Request Type

  • ✨ Feature Request

2. General Description

This issue proposes adding a new regex generator to the project: CNPJ format validator (format-only). Accept both formatted (00.000.000/0000-00) and unformatted (14 digits) inputs.

3. Specific Information

  • Problem to Solve: The project currently has CPF but lacks CNPJ format validation which is commonly required for business registrations in Brazil.
  • Suggested Solution: Implement generateCNPJRegex(options) where options.allowFormatting toggles between formatted and unformatted acceptance. Document that this is format-only and does not validate check digits.

Important:

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Contributor guide

Research direction
Implement the generateCNPJRegex function with an options parameter that allows toggling formatted and unformatted input acceptance. Follow existing patterns like CPF implementation.
Tech stack
javascript
Domain
backend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Git
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75