1 files changed, 8 insertions, 0 deletions
diff --git a/util.lua b/util.lua
index da9702e..99f8fe8 100644
--- a/util.lua
+++ b/util.lua
@@ -22,6 +22,14 @@ function util.strip(str)
 	return (str:gsub('^%s*(.-)%s*$', '%1'))
 end
 
+function util.strip_ne(str)
+	if str == nil then
+		return nil
+	end
+	local str = util.strip(tostring(str))
+	return str ~= '' and str or nil
+end
+
 -- skips over utf8 continuation bytes (10xxxxxx)
 -- valid positions range from 1 to #str + 1 (*after* the last byte)
 function util.utf8_seek(str, pos, n)