CCBridge // +convertPunctuationsToVertical().

Source/3rdParty/HotenkaChineseConverter/HotenkaCCBridge.swift

@@ -11,6 +11,24 @@ import Foundation
 public enum ChineseConverter {
   public static let shared = HotenkaChineseConverter(plistDir: mgrLangModel.getBundleDataPath("convdict"))
 
+  private static var punctuationConversionTable: [(String, String)] = [
+    ("【", "︻"), ("】", "︼"), ("〖", "︗"), ("〗", "︘"), ("〔", "︹"), ("〕", "︺"), ("《", "︽"), ("》", "︾"),
+    ("〈", "︿"), ("〉", "﹀"), ("「", "﹁"), ("」", "﹂"), ("『", "﹃"), ("』", "﹄"), ("｛", "︷"), ("｝", "︸"),
+    ("（", "︵"), ("）", "︶"), ("［", "﹇"), ("］", "﹈"),
+  ]
+
+  /// 將操作對象內的橫排標點轉為縱排標點。
+  /// 本來是不推薦使用的，但某些極端的排版情形下、使用的中文字型不支援縱排標點自動切換，才需要這個功能。
+  /// - Parameters:
+  ///   - target: 轉換目標。
+  ///   - convert: 是否真的執行此操作。不填寫的話，該函式不執行。
+  public static func hardenVerticalPunctuations(target: inout String, convert: Bool = false) {
+    guard convert else { return }
+    for neta in ChineseConverter.punctuationConversionTable {
+      target = target.replacingOccurrences(of: neta.0, with: neta.1)
+    }
+  }
+
   // 給 JIS 轉換模式新增疊字符號支援。
   private static func processKanjiRepeatSymbol(target: inout String) {
     guard !target.isEmpty else { return }