1 files changed, 5 insertions, 0 deletions
diff --git a/Util.cs b/Util.cs
index 6af6c81..7de2b6e 100644
--- a/Util.cs
+++ b/Util.cs
@@ -5,6 +5,11 @@ public static class Extensions {
         "K", "M", "G", "T", "P", "E", "Z", "Y", "R", "Q"
     };
 
+    public static string? NullIfEmpty(this string s) {
+      s = s.Trim();
+      return string.IsNullOrEmpty(s) ? null : s;
+    }
+
     public static DateTime? TryParseDateTimeUtc(this string s) {
         bool success = DateTime.TryParse(s, out var dateTime);
         return success ? DateTime.SpecifyKind(dateTime, DateTimeKind.Utc) : null;