Added promptTonesForPinyin static function to PinyinUtils

Author: caseyryan

CHANGELOG.md

@@ -1,3 +1,6 @@
+## [2.9.11]
+- Added promptTonesForPinyin() static function to PinyinUtils. 
+It can give you a list of its vowels with all possible tones
 ## [2.9.10]
 - Added di pinyin to HanziUtils
 ## [2.9.9]

example/pubspec.lock

@@ -96,7 +96,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "2.9.10"
+    version: "2.9.11"
   flutter_test:
     dependency: "direct dev"
     description: flutter

lib/formatters/credit_card_number_input_formatter.dart

@@ -86,7 +86,7 @@ class CreditCardNumberInputFormatter extends TextInputFormatter {
     );
   }
 
-  /// this is a small dirty hask to be able to remove the first character
+  /// this is a small dirty hack to be able to remove the first character
   Future _removeFirstLetter() async {
     await Future.delayed(
       Duration(
@@ -127,14 +127,19 @@ class CreditCardNumberInputFormatter extends TextInputFormatter {
   }
 }
 
-/// checks not only for length and characters but also
-/// for card system code code. If it's not found the succession of numbers
+/// checks not only for a length and characters but also
+/// for card system code. If it's not found the succession of numbers
 /// will not be marked as a valid card number
 bool isCardValidNumber(
   String cardNumber, {
   bool checkLength = false,
 }) {
-  cardNumber = toNumericString(cardNumber);
+  cardNumber = toNumericString(
+    cardNumber,
+    allowAllZeroes: true,
+    allowHyphen: false,
+    allowPeriod: false,
+  );
   if (cardNumber.isEmpty) {
     return false;
   }

lib/utils/pinyin_utils.dart

@@ -462,6 +462,23 @@ class PinyinUtils {
     return value.replaceAll(_punctuationRegex, '');
   }
 
+  /// Pass a tone or untoned pinyin and get a list
+  /// of toned vowels that can be in this pinyin
+  static List<String> promptTonesForPinyin(String pinyin) {
+    final chars = HashSet<String>.from(
+      PinyinUtils.simplifyPinyin(pinyin).split(''),
+    ).toList();
+    final temp = <String>[];
+    for (var i = 0; i < chars.length; i++) {
+      final char = chars[i];
+      if (_mappedVowels.containsKey(char)) {
+        temp.addAll(_mappedVowels[char]!);
+      }
+    }
+
+    return temp;
+  }
+
   final _toneRegexp = RegExp(r'[āáǎàēéěèōóǒòīíǐìūúǔùǖǘǚǜü]+');
 
   bool containsTone(String text) {
@@ -500,6 +517,18 @@ class PinyinUtils {
   static const _vS = 'v̄v́v̆v̌v̀';
   static const _uDottedS = '(?:ü|ǖ|ǘ|ǚ|ǚ|ü̆|ǜ)';
 
+  static const Map<String, List<String>> _mappedVowels = {
+    'a': ['ā', 'á', 'ǎ', 'à'],
+    'e': ['ē', 'é', 'ě', 'è'],
+    'i': ['ī', 'í', 'ǐ', 'ì'],
+    'o': ['ō', 'ó', 'ǒ', 'ò'],
+    'u': ['ū', 'ú', 'ǔ', 'ù', 'ü', 'ǖ', 'ǘ', 'ǚ', 'ǜ'],
+  };
+
+  static Map<String, List<String>> get mappedVowels {
+    return _mappedVowels;
+  }
+
   static final RegExp _aRegex = RegExp('[$_aS]');
   static final RegExp _eRegex = RegExp('[$_eS]');
   static final RegExp _iRegex = RegExp('[$_iS]');

pubspec.yaml

@@ -1,6 +1,6 @@
 name: flutter_multi_formatter
 description: A package of formatters for international phone numbers, credit / debit cards and a masked formatter
-version: 2.9.10
+version: 2.9.11
 homepage: https://github.com/caseyryan/flutter_multi_formatter
 
 environment: