diff --git a/Source/cmSystemTools.cxx b/Source/cmSystemTools.cxx
index 0b8749d59e..e878b70216 100644
--- a/Source/cmSystemTools.cxx
+++ b/Source/cmSystemTools.cxx
@@ -4392,3 +4392,31 @@ char cmSystemTools::GetSystemPathlistSeparator()
   return ':';
 #endif
 }
+
+cm::string_view cmSystemTools::GetFilenameNameView(std::string const& filename)
+{
+// implementation mostly taken from cmsys::SystemTools
+#if defined(_WIN32) || defined(KWSYS_SYSTEMTOOLS_SUPPORT_WINDOWS_SLASHES)
+  cm::static_string_view separators = "/\\"_s;
+#else
+  char separators = '/';
+#endif
+  std::string::size_type slash_pos = filename.find_last_of(separators);
+  if (slash_pos != std::string::npos) {
+    return cm::string_view(filename).substr(slash_pos + 1);
+  } else {
+    return cm::string_view(filename);
+  }
+}
+
+cm::string_view cmSystemTools::GetFilenameLastExtensionView(
+  std::string const& filename)
+{
+  cm::string_view name = cmSystemTools::GetFilenameNameView(filename);
+  cm::string_view::size_type dot_pos = name.rfind('.');
+  if (dot_pos != std::string::npos) {
+    return name.substr(dot_pos);
+  } else {
+    return cm::string_view();
+  }
+}
diff --git a/Source/cmSystemTools.h b/Source/cmSystemTools.h
index 4a78dc33a3..ad76abe4d1 100644
--- a/Source/cmSystemTools.h
+++ b/Source/cmSystemTools.h
@@ -705,6 +705,16 @@ public:
   /** Get the system path separator character */
   static char GetSystemPathlistSeparator();
 
+  /** Return subview of the full filename (i.e. file name without path) */
+  static cm::string_view GetFilenameNameView(std::string const& filename);
+
+  /**
+   * Return subview of file extension of a full filename (dot included).
+   * Warning: this is the shortest extension (for example: .gz of .tar.gz)
+   */
+  static cm::string_view GetFilenameLastExtensionView(
+    std::string const& filename);
+
 private:
   static bool s_ForceUnixPaths;
   static bool s_RunCommandHideConsole;