turkish_kit library

Turkish helpers for Dart and Flutter, in pure Dart:

TurkishValidators and TurkishFormValidators: T.C. kimlik no, vergi kimlik no, TR IBAN and phone numbers; TurkishInputMask for as-you-type formatting.
TurkishMoney and TurkishNumberWords: exact amounts, Turkish number format and amounts in words (Yalnız #...#).
TurkishText: Turkish upper/lower case, search normalization and alphabetical sorting.
TurkishProvinces: the 81 provinces and 973 districts, offline.
TurkishHolidays and TurkishBusinessCalendar: public holidays, bayrams and working days.

Classes

TurkishBusinessCalendar: Working-day rules: weekends, public holidays and your own exceptions.
TurkishFormValidators: Ready-made form field validators built on TurkishValidators.
TurkishHoliday: A public holiday in Turkey on a given date.
TurkishHolidays: Public holidays of Turkey under Law No. 2429 (Ulusal Bayram ve Genel Tatiller Hakkında Kanun).
TurkishInputMask: As-you-type formatting for Turkish numbers, without depending on Flutter.
TurkishMoney: An exact Turkish lira amount, stored as a whole number of kuruş (1 TL = 100 kuruş), so there are no floating-point errors.
TurkishMoneyInputMask: As-you-type formatting for a Turkish money field: 1.234,56 (with an optional ₺ suffix), without depending on Flutter.
TurkishNumberFormat: Formats and parses numbers in Turkish notation: . groups thousands and , is the decimal separator (1.234.567,89).
TurkishNumberWords: Converts whole numbers to Turkish words.
TurkishProvince: One of Turkey's 81 provinces (il) with its districts (ilçe).
TurkishProvinces: Lookup of the 81 provinces of Turkey and their districts, embedded in the package (no network needed).
TurkishText: Turkish-aware text helpers: casing, search normalization and sorting.
TurkishValidationMessages: Error messages used by TurkishFormValidators.
TurkishValidators: Pure functions that validate and normalize Turkish identifiers.

TurkishHolidayKind: Which holiday a TurkishHoliday is.
TurkishPhoneType: The kind of a Turkish phone number, see TurkishValidators.phoneType.
TurkishRounding: How amounts with more than two decimals are rounded to kuruş.
TurkishWordCase: Letter case of words produced by TurkishNumberWords and TurkishMoney.

TurkishStringExtension on String: Turkish-aware versions of common String operations.

TurkishEditValue = ({int selectionEnd, int selectionStart, String text}): A text with its selection, as an input formatter sees it. In Flutter this is TextEditingValue.text and TextEditingValue.selection.
TurkishFieldValidator = String? Function(String? value): A form field validator: returns an error message, or null when the value is valid.
TurkishMaskResult = ({int cursor, String text}): The result of TurkishInputMask.apply: the formatted text and where the cursor should be.