From c95840c681a5fa39a6d2358143ccd7dcf68a5f11 Mon Sep 17 00:00:00 2001
From: croire <1432593898@qq.com>
Date: Fri, 6 Jan 2023 15:27:25 +0800
Subject: [PATCH] Fix FormatFileName

---
 DownKyi.Core/Utils/Format.cs | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/DownKyi.Core/Utils/Format.cs b/DownKyi.Core/Utils/Format.cs
index 6e0faf1..fcde0f6 100644
--- a/DownKyi.Core/Utils/Format.cs
+++ b/DownKyi.Core/Utils/Format.cs
@@ -199,7 +199,22 @@ namespace DownKyi.Core.Utils
             destName = Regex.Replace(destName, @"\p{C}+", string.Empty);
 
             // 移除前导和尾部的空白字符、dot符
-            return destName.Trim('.').Trim();
+            int i, j;
+            for (i = 0; i < destName.Length; i++)
+            {
+                if (destName[i] != ' ' && destName[i] != '.')
+                {
+                    break;
+                }
+            }
+            for (j = destName.Length - 1; j >= 0; j--)
+            {
+                if (destName[j] != ' ' && destName[j] != '.')
+                {
+                    break;
+                }
+            }
+            return destName.Substring(i, j - i + 1);
         }
 
     }