rules/index library

A library that provides a collection of text validation rules for various purposes.

This library exports a wide range of validators, including color validation, date validation, IT-related validation, language validation, list-related validation, magic validation, number validation, phone number validation, text validation, and URL validation.

Classes

Contains: checks if the input does contain the provided value;
ContainsAny: check if the value contain at lest one of String form the provided list
EndsWith: Validates that the trimmed input ends with end.
IsArabicChars: Validates that the input contains only Arabic letters, whitespace and Arabic-Indic digits (٠-٩).
IsArabicNum: Validates a positive integer in Latin digits, with no leading zero.
IsBool: Validates that the input is a boolean literal — true or false.
IsDate: Validates that the input is a date string DateTime.parse can read.
IsDateAfter: Validates that the input parses to a date strictly after date.
IsDateMillis: checks if the input is a valid date to parse by DateTime.fromMillisecondsSinceEpoch factory
IsDecimal: Validates that the input is a decimal number. Integers are accepted too, since every integer is a valid double.
IsEgyptianPhone: Validates that the input is an Egyptian mobile number (010/011/012/015 + 8 digits).
IsEmail: checks if the input is a valid email address
IsEmpty: Validates that the input is empty or whitespace-only.
IsEnglishChars: Validates that the input contains only English (A–Z) letters.
IsFacebookUrl: Validates that the input is a Facebook URL (facebook.com or fb.com).
IsHexColor: checks if the input is valid hex color
IsHindiNum: Validates a positive integer in Arabic-Indic digits, with no leading zero.
IsIn: checks if the input is in provided List;
IsInstagramUrl: Validates that the input is an Instagram URL (instagram.com).
IsIpAddress: Validates that the input is an IPv4 address (four dot-separated octets 0–255).
ISKsaPhone: Validates that the input is a Saudi (KSA) mobile number.
IsLtrLanguage: A validation rule that checks whether a language code is left-to-right (LTR).
IsNotIn: checks if the input is NOT in provided List;
IsNumber: checks if the input is a valid integer
IsNumbersOnly: Validates that the input is all digits (one or more, nothing else).
IsOptional: allows you to skip the errors if the input is null
IsPort: checks if the input is a valid port
IsRequired: Validates that the input is not empty after trimming.
IsRTLLanguage: A validation rule that checks whether a language code is right-to-left (RTL).
IsSecureUrl: checks if the input is a secure url
IsUrl: Validates that the input is an http or https URL.
IsYoutubeUrl: Validates that the input is a YouTube URL (youtube.com).
Match: checks if the input is match other string
MaxLength: checks if the input characters length is smaller than the max field
MaxValue: Validates that the parsed numeric input is less than or equal to max.
MinLength: checks if the input characters length is bigger than the min field
MinValue: Validates that the parsed numeric input is greater than or equal to min.
NotContains: checks if input does not contain the provided value;
NotContainsAny: check if the value does not contain any item from the provided list
RegExpRule: allow using a regular expression as validation rule
StartsWith: Validates that the trimmed input starts with pattern.

Functions

containsAny(String v, List<String> list, {bool caseSensitive = false, bool trim = true}) → bool: Returns true if v contains any entry from list (case-insensitive by default).
isArabicChars(String input) → bool: Returns true if input consists of Arabic letters, whitespace and Arabic-Indic digits (٠-٩).
isArabicNum(String input) → bool: Returns true if input is a positive integer in Latin digits with no leading zero.
isBool(Object? input) → bool: Returns true if input is a bool, or the trimmed, case-insensitive string 'true' or 'false'.
isDate(String? v) → bool: checks if the input is a valid date to parse by Dart DateTime class
isDateAfter(Object? input, DateTime date) → bool: Returns true if input (a String or DateTime) is strictly after date.
isDateMills(String v, {bool isUtc = false}) → bool: checks if the input is a valid date to parse by DateTime.fromMillisecondsSinceEpoch factory
isDecimal(String? input) → bool: Returns true if input parses as a double via double.tryParse (surrounding whitespace is trimmed first).
isEgyptianNumber(String str) → bool: Returns true if str is a valid Egyptian mobile number.
isEmail(String? email) → bool: checks if the value can be well formatted email address
isEmpty(String? input) → bool: trim the string then checks if isEmpty if string is empty it will returns true
isEnglishChars(String input) → bool: Returns true if input consists of English letters only.
isFacebookUrlValid(String url) → bool: Returns true if url is an http or https Facebook URL.
isHexColor(String? input) → bool: can starts with or without# must contains
isHindiNum(String input) → bool: Returns true if input is a positive integer in Arabic-Indic digits with no leading zero.
isIn(Object v, List<Object> list) → bool: check if string is in List<String>
isInstagramUrlValid(String url) → bool: Returns true if url is an http or https Instagram URL.
isInstgramUrlValid(String url) → bool: Deprecated misspelling of isInstagramUrlValid; kept so existing callers keep compiling. Will be removed in a future major release.
isIpAddress(Object? input) → bool: Returns true if input is a string holding a strict dotted-quad IPv4 address — no leading zeros, signs or surrounding/embedded whitespace.
isKsaPhone(String input) → bool: Returns true if input is a valid Saudi mobile number in a supported format.
isNotEmpty(String? string) → bool: trim the string then checks if isNotEmpty
isNotIn(Object v, List<Object> list) → bool: check if value is NOT in List
isNumber(String? input) → bool: Returns true if input is a base-10 integer (surrounding whitespace is trimmed first). Parsing is pinned to radix: 10, so the 0x hex prefix, scientific notation and decimals are all rejected — use isDecimal for fractional values.
isNumbersOnly(String input) → bool: Returns true if input is one or more digits and nothing else.
isPort(Object? input) → bool: Returns true if input is an integer port in the range 0–65535.
isSecureUrl(Object? input) → bool: Returns true if input is a string starting with https:// (case-insensitive).
isUrlValid(String url) → bool: Returns true if url is a well-formed http or https URL.
isYoutubeUrLValid(String url) → bool: Returns true if url is an http or https YouTube URL.
match(Object? input, Object? other) → bool: checks if two Strings are the same
maxValue(Object? value, num max) → bool: Returns true if value parses to a number less than or equal to max.
minLength(String? input, int min) → bool: Returns true if input, trimmed, is at least min characters long.
minValue(Object? value, num min) → bool: Returns true if value parses to a number greater than or equal to min.
notContainsAny(String v, List<String> list) → bool: Returns true if v contains none of the entries in list.

rules/index library

Classes

Functions

x_validators package

index library