From dd5f22ef0a93551ada78ce0983917f0c27197bbe Mon Sep 17 00:00:00 2001
From: hyzboy <hyzboy@gmail.com>
Date: Wed, 16 Sep 2020 22:02:01 +0800
Subject: [PATCH] add ClipPathname function

---
 inc/hgl/filesystem/FileSystem.h | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/inc/hgl/filesystem/FileSystem.h b/inc/hgl/filesystem/FileSystem.h
index bf1089b..bfd3ad0 100644
--- a/inc/hgl/filesystem/FileSystem.h
+++ b/inc/hgl/filesystem/FileSystem.h
@@ -138,6 +138,30 @@ namespace hgl
                                 fullname.SubString(0,pos+1);
         }
 
+        /**
+         * 截取一个文件名中的路径名
+         * @param filename 文件名
+         * @param include_spear_char 是否包含最后的分隔符
+         */
+        template<typename T>
+        inline String<T> ClipPathname(const String<T> &filename,bool include_spear_char=true)
+        {
+            if(filename.Length()<=1)
+                return(String<T>());
+
+            const T spear_char[] = { '/','\\',':'};
+
+            const int pos=filename.FindRightChar(spear_char);
+
+            if(pos==-1)
+                return filename;
+            else
+            if(include_spear_char)
+                return filename.SubString(0,pos);
+            else
+                return filename.SubString(0,pos-1);
+        }
+
         /**
          * 截取路径最后一个名字
          */