Add Swift API for adding punctuations to text. (#1132)

swift-api-examples/add-punctuations.swift

@@ -0,0 +1,31 @@
+func run() {
+  let model = "./sherpa-onnx-punct-ct-transformer-zh-en-vocab272727-2024-04-12/model.onnx"
+  let modelConfig = sherpaOnnxOfflinePunctuationModelConfig(
+    ctTransformer: model,
+    numThreads: 1,
+    debug: 1,
+    provider: "cpu"
+  )
+  var config = sherpaOnnxOfflinePunctuationConfig(model: modelConfig)
+
+  let punct = SherpaOnnxOfflinePunctuationWrapper(config: &config)
+
+  let textList = [
+    "这是一个测试你好吗How are you我很好thank you are you ok谢谢你",
+    "我们都是木头人不会说话不会动",
+    "The African blogosphere is rapidly expanding bringing more voices online in the form of commentaries opinions analyses rants and poetry",
+  ]
+
+  for i in 0..<textList.count {
+    let t = punct.addPunct(text: textList[i])
+    print("\nresult is:\n\(t)")
+  }
+
+}
+
+@main
+struct App {
+  static func main() {
+    run()
+  }
+}