feat: initial commit

2026-01-01 03:40:41 +08:00
commit 631f8ed771
98 changed files with 14776 additions and 0 deletions
@@ -0,0 +1,25 @@
+using System.Text;
+
+namespace MaigoLabs.NeedLe.Common.Extensions;
+
+public static class UnicodeExtensions
+{
+    public static IEnumerable<int> ToCodePoints(this string s)
+    {
+        for (int i = 0; i < s.Length; i++)
+        {
+            int codePoint = char.ConvertToUtf32(s, i);
+            if (codePoint > 0xffff) i++;
+            yield return codePoint;
+        }
+    }
+
+    public static StringBuilder ToUtf32StringBuilder(this IEnumerable<int> codePoints)
+    {
+        var sb = new StringBuilder();
+        foreach (var codePoint in codePoints) sb.Append(char.ConvertFromUtf32(codePoint));
+        return sb;
+    }
+
+    public static string ToUtf32String(this IEnumerable<int> codePoints) => ToUtf32StringBuilder(codePoints).ToString();
+}