HHuckebein / StringInputValidator

Validate string input against validation rules based on regular expression, length, character set.

StringInputValidator

StringInputValidator provides a convenient way to test a given string against a validator. A validator can be as simple the RegularExpressionValidator.numeric which checks wether the string contains numeric values only. Or a complex validator if you combine length/format validation using a composite validator.

How to use StringInputValidator

	let lengthVal = LengthValidator(lengthLimit: 5)
    let emptyVal = NotEmptyValidator()
     let numVal = RegularExpressionValidator.numeric
        
    let compVal = CompositeValidator(validators: lengthVal, emptyVal, numVal)
    let res = compVal.validate(value: "absdefgh")

    // ask for validity
    res.isValid()

    // or 
    if case let .invalid(error) = res {
        error.contains(.invalidFormat)
        error.contains(.lengthExceeded)
    } else {}

    // check the description [InvalidFormat, LengthExceeded, LengthMismatch]
    let string = error.description

Installation

Installation with Carthage

Carthage is a decentralized dependency manager that builds your dependencies and provides you with binary frameworks.

You can install Carthage with Homebrew using the following command:

$ brew update
$ brew install carthage

To integrate StringInputValidator into your Xcode project using Carthage, specify it in your Cartfile:

github "HHuckebein/StringInputValidator"

Run carthage to build the framework and drag the built StringInputValidator.framework into your Xcode project.

Author

RABE_IT Services, [e-mail]

License

StringInputValidator is available under the MIT license. See the LICENSE file for more info.