SahihValidator class

A comprehensive validation library for Flutter applications.

Provides static methods for validating emails, phone numbers, passwords, addresses, URLs, and custom fields. All methods return null for valid input or an error message string for invalid input. A collection of static validation methods for common input types.

This class provides validation for:

• Email addresses
• Phone numbers
• Passwords
• Addresses
• URLs
• Custom validation rules A comprehensive validator for common input types in Flutter applications.

Provides static methods for validating:

• Email addresses
• Phone numbers
• Passwords
• Addresses
• URLs
• Custom input patterns

All methods return null if validation passes, or a String error message if validation fails.

Constructors

SahihValidator()

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

address({required String address, String? title = "Address", String? emptyMessage, bool trimWhitespace = true, List<String>? existingAddresses, String? alreadyExistsMessage, bool isRequired = true, int minLength = 10, int maxLength = 200, bool requireStreetNumber = false, bool requireStreetName = true, bool requireCity = false, bool requireCountry = false, bool allowSpecialChars = true, bool allowNumbers = true, bool allowLetters = true, List<String>? forbiddenWords, List<String>? requiredWords, String? minLengthMessage, String? maxLengthMessage, String? missingStreetNumberMessage, String? missingStreetNameMessage, String? missingCityMessage, String? missingCountryMessage, String? invalidSpecialCharsMessage, String? invalidNumbersMessage, String? invalidLettersMessage, String? forbiddenWordsMessage, String? requiredWordsMessage}) → String?

Validates physical addresses with comprehensive formatting and content rules.

custom({required String value, String? title, bool trimWhitespace = true, bool isRequired = true, int? minLength, int? maxLength, String? pattern, PatternType? patternType, bool allowOnlyNumbers = false, bool allowOnlyLetters = false, String? emptyMessage, String? minLengthMessage, String? maxLengthMessage, String? invalidPatternMessage, String? invalidNumberMessage, String? invalidLettersMessage, String? customValidator(String value)?, List<String>? existingValues, String? alreadyExistsMessage}) → String?

Provides flexible custom validation with multiple configurable rules.

dateOfBirth({required String dob, String format = "yyyy-MM-dd", int minAgeYears = 18, int maxAgeYears = 120, int? minAgeDays, bool useUtc = false, String? invalidFormatMessage, String? futureDateMessage, String? tooYoungMessage, String? tooOldMessage}) → String?

email({required String email, String? emptyMessage, String? invalidFormatMessage, bool trimWhitespace = true, List<String>? existingEmails, String? alreadyExistsMessage}) → String?

Validates an email address format and checks against existing emails.

loginPassword({required String password, String? emptyMessage}) → String?

Validates a login password by checking if it's not empty.

passwordParts(String input, {List<String>? commonPasswords}) → String?

Validates password strength for new password creation.

phone({required String phone, String? emptyMessage, String? invalidFormatMessage, bool trimWhitespace = true, List<String>? existingPhones, String? alreadyExistsMessage}) → String?

Validates a phone number format and checks against existing phone numbers.

urlAsync<T>(String url, {bool allowRelative = false, List<String>? allowedSchemes, List<String>? allowedDomains, bool normalize = true, bool checkDomainExists = false}) → Future<T>

Asynchronously validates URLs with comprehensive format and domain checking.