Business::BR is a namespace to place all validations like CPF CNPJ CEP and some other things to be used in a brazilian ruby project.

Swift code validation and lookup Ruby gem - Fork from http://github.com/hugolantaume/iso-swift

Calls the W3C Validator API with every page Jekyll generates and displays the validation errors.

LightService plugin adding DSL for expected/promised keys validation

Pastore is a powerful gem for Rails that simplifies the process of validating parameters and controlling access to actions in your controllers. With Pastore, you can easily define validations for your parameters, ensuring that they meet specific requirements before being passed to your controller...

CompositeValidator allows you to validate associated models and compose their validation errors to the parent model. It supports both single associations and collections.

Check on validations, background jobs, third-party integrations, state machines, and business rules

Validation of parameters for Sinatra

Parsing, conversion, and validation for dates, phonetic names, and numbers.

Client-side HTML form validations

Strict Phlex validation

Pattern for writing callable service objects with contract validation and error swallowing

CommandSet is a user interface framework. Its focus is a DSL for defining commands, much like Rake or RSpec. A default readline based terminal interpreter (complete with context sensitive tab completion, and the amenities of readline: history editing, etc) is included. It could very well be ad...

This library generates credit card numbers using the Luhn algorithm, suitable for testing payment systems and form validations.

Vies is a EU service that checks EU VAT business number validation and sends back its information.

Manage markup close to home... right in the model! Caching, validation, etc

A simple set of types for validation of ruby objects.

Moderate user-generated content by adding a simple validation to block bad words in any text field. Good for applications where you need to maintain a clean and respectful environment in comments, posts, or any other user input.

Convert between ISO comment sheet DOCX and structured YAML with schema validation.

A comprehensive Ruby client for interacting with the Rospatent patent search API. Features include automatic caching, request validation, structured logging, error handling, and batch operations for efficient patent data retrieval.