String validation for iOS developed in Swift. Inspired by validator.js
SwiftValidators is available on CocoaPods for iOS 9.0+, Xcode 8 and Swift 3.0
use_frameworks!
target 'MyProject' do
...
pod 'SwiftValidators'
...
end
It is also available through SPM:
import PackageDescription
let package = Package(
name: "MyProject",
targets: [],
dependencies: [
.Package(url: "https://github.com/gkaimakas/SwiftValidators.git",
majorVersion: 5)
]
)Validation is done by a closure (StringConvertible?) -> Bool (type aliased as Validator).
To obtain a validator use the Validators class. It provides a set of static functions where each function returns a Validator.
A Validator accepts as an input a nullable value that conforms to the StringConvertible protocol. By default String, NSString, Int, Float, Double and Bool conform to StringConvertible.
To specify the validator's behaviour when it's input is nil, you can set the nilResponse parameters on a function of the Validator's class. By default nilResponse is set to false for all available functions.
Validators.exactLength(3)("abc") //returns true
Validators.exactLength(3)(true) //returns false (the string representation of true is 'true')
Validators.exactLength(3)(nil) //returns false since `nilResponse` is set to false by default
Valuidators.exactLength(3, nilResponse: true)(nil) //returns true since we set nilResponse to trueFor more examples on how to call each validator you can look at the unit tests.
You can combine operators using the logical AND, logical OR and Logical NOT operators ( &&, || and ! respectively).
let combinedANDValidator = Validators.required() && Validator.isTrue()The combinedANDValidator will be true only when the value is not empty and "true"
let combinedORValidator = Validators.isTrue() || Validators.isFalse()The combinedORValidator will be true if the value is "true" or "false", otherwise it will be false.
let reversedValidator = !Validators.isTrue()The reversedValidator will be false when the value equals "true" and true for all other values.
| Name | Description | Type | Arguments | Example |
|---|---|---|---|---|
| contains | checks if it is contained in the seed | func | String, Bool(nilReponse=false) | Validators.contains("some seed")("ee") |
| equals | checks if it equals another | func | String, Bool(nilReponse=false) | Validators.equals("aa")("aa") |
| exactLength | checks if it has the exact length | func | Int, Bool(nilReponse=false) | Validators.exactLength(2)("aa") |
| isASCII | checks if it is valid ascii string | func | Bool(nilReponse=false) | Validators.isASCII()("SDGSFG") |
| isAfter | checks if it is after the date | func | String, String, Bool(nilReponse=false) | Validators.isAfter("23/07/2015", format: "dd/MM/yyyy")("24/07/2015") |
| isAlpha | checks if it has only letters | func | Bool(nilReponse=false) | Validators.isAlpha()("abc") |
| isAlphanumeric | checks if it has letters and numbers only | func | Bool(nilReponse=false) | Validators.isAlphanumeric()("abc123") |
| isBase64 | checks if it a valid base64 string | func | Bool(nilReponse=false) | Validators.isBase64()("some string") |
| isBefore | checks if it is before the date | func | String, String, Bool(nilReponse=false) | Validators.isBefore("25/09/1987", format: "dd/MM/yyyy")("29/03/1994") |
| isBool | checks if it is boolean | func | Bool(nilReponse=false) | Validators.isBool()("true") |
| isCreditCard | checks if it is a credit card number | func | Bool(nilReponse=false) | Validators.isCreditCard()("123") |
| isDate | checks if it is a valid date | func | String, Bool(nilReponse=false) | Validators.isDate("dd/MM/yyyy")("25/09/1987") |
| isEmail | checks if it is an email | func | Bool(nilReponse=false) | Validators.isEmail()("gkaimakas@gmail.com") |
| isEmpty | checks if it is an empty string | func | Bool(nilReponse=false) | Validators.isEmpty()("") |
| isFQDN | checks if it is fully qualified domain name | func | FQDNOptions or empty, Bool(nilReponse=false) | Validator.isFQDN()("ABC") |
| isFalse | checks if it is false | func | Bool(nilReponse=false) | Validators.isFalse()("false") |
| isFloat | checks if it is a float number | func | Bool(nilReponse=false) | Validators.isFloat()("2.3e24") |
| isHexColor | checks if it is a valid hex color | func | Bool(nilReponse=false) | Validators.isHexColor()("#fafafa") |
| isHexadecimal | checks if it is a hexadecimal value | func | Bool(nilReponse=false) | Validators.isHexadecimal()("abcdef") |
| isIP | checks if it is a valid IP (4 |6) | func | Bool(nilReponse=false) | Validators.isIP()("0.0.0.0") |
| isIPv4 | checks if it is a valid IPv4 | func | Bool(nilReponse=false) | Validators.isIPv4()("0.0.0.0") |
| isIPv6 | checks if it is a valid IPv6 | func | Bool(nilReponse=false) | Validators.isIPv6()("::") |
| isISBN | checks if it is a valid ISBN | func | ISBN, Bool(nilReponse=false) | Validators.isISBN(.v13)("asdf") |
| isIn | checks if the value exists in the supplied array | func | Array, Bool(nilReponse=false) | Validators.isIn(["a","b","c"])("a") |
| isInt | checks if it is a valid integer | func | Bool(nilReponse=false) | Validators.isInt()("123") |
| isLowercase | checks if it only has lowercase characters | func | Bool(nilReponse=false) | Validators.isLowercase()("asdf") |
| isMongoId | checks if it a hexadecimal mongo id | func | Bool(nilReponse=false) | Validators.isMongoId()("adfsdffsg") |
| isNumeric | checks if it is numeric | func | Bool(nilReponse=false) | Validators.isNumeric()("+123") |
| isPhone | checks if it is a valid phone | func | Phone, Bool(nilReponse=false) | Validators.isPhone(.el_GR)("6944848966") |
| isPostalCode | checks it is a valid postal code | func | PostalCode, Bool(nilResponse=false) | Validator.isPostalCode(.GR)("30 006") |
| isTrue | checks if it is true | func | Bool(nilReponse=false) | Validators.isTrue()("true") |
| isUUID | checks if it is a valid UUID | func | Bool(nilReponse=false) | Validators.isUUID()("243-124245-2235-123") |
| isUppercase | checks if has only uppercase letter | func | Bool(nilReponse=false) | Validators.isUppercase()("ABC") |
| maxLength | checks if the length does not exceed the max length | func | Int, Bool(nilReponse=false) | Validators.maxLength(2)("ab") |
| minLength | checks if the length isn't lower than | func | Int, Bool(nilReponse=false) | Validators.minLength(1)("213") |
| required | checks if it is not an empty string | func | Bool(nilReponse=false) | Validators.required()("") |
| regex | checks that the value matches the regex from start to finish | func | String, Bool(nilReponse=false) | Validators.regex(pattern) |
| watch | check the delegate for equality | func | ValueProvider, Bool(nilReponse=false) | Validators.watch(delegate) |
*FQDNOptions is a class that is used on isFQDN for configuration purposes. It can be instantiated like this:
FQDNOptions(requireTLD: Bool, allowUnderscores: Bool, allowTrailingDot: Bool)ValueProvider is a simple protocol that is used to get the string value of an object. For that purpose it exposes a getter
var value: StringThe watch validator accepts an object that conforms to that protocol.
Copyright (c) George Kaimakas gkaimakas@gmail.com
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