cimplifyPinyin utility method

caseyryan · Oct 15, 2022 · 3160674 · 3160674
1 parent 8b8171e
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Showing 4 changed files with 23 additions and 2 deletions.
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,3 +1,5 @@
+## [2.8.1]
+- Added a utility method PinyinUtils.simplifyPinyin();
 ## [2.8.0]
 - Introducing PinyinFormatter for Chinese language 
 ## [2.7.6]

diff --git a/example/pubspec.lock b/example/pubspec.lock
@@ -96,7 +96,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "2.8.0"
+    version: "2.8.1"
   flutter_test:
     dependency: "direct dev"
     description: flutter

diff --git a/lib/utils/pinyin_utils.dart b/lib/utils/pinyin_utils.dart
@@ -66,6 +66,25 @@ class PinyinUtils {
     return value.replaceAll(_punctuationRegex, '');
   }
 
+  static final RegExp _aRegex = RegExp(r'[āáǎăà]+');
+  static final RegExp _eRegex = RegExp(r'[ēéěĕè]+');
+  static final RegExp _iRegex = RegExp(r'[īíǐĭì]+');
+  static final RegExp _oRegex = RegExp(r'[ōóǒŏò]+');
+  static final RegExp _uRegex = RegExp(r'[ūúǔŭùüǖǘǚǚü̆ǜ]+');
+  static final RegExp _vRegex = RegExp(r'[v̄v́v̆v̌v̀]+');
+
+  /// converts all spcial symbols in pinyin to it's
+  /// normal latin analog like ě -> e or ǔ -> u
+  static String simplifyPinyin(String pinyin) {
+    return pinyin
+        .replaceAll(_aRegex, 'a')
+        .replaceAll(_eRegex, 'e')
+        .replaceAll(_iRegex, 'i')
+        .replaceAll(_oRegex, 'o')
+        .replaceAll(_uRegex, 'u')
+        .replaceAll(_vRegex, 'v');
+  }
+
   static String splitToSyllablesBySeparator(
     String value, [
     String separator = '\'',

diff --git a/pubspec.yaml b/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: 2.8.0
+version: 2.8.1
 homepage: https://github.com/caseyryan/flutter_multi_formatter
 
 environment: