Fix for empty strings (previously '' was just removed)

stamparm · stamparm · commit 540493a69ff2 · 2013-06-11T12:56:20.000+02:00
diff --git a/plugins/generic/syntax.py b/plugins/generic/syntax.py
@@ -23,7 +23,9 @@ def _escape(expression, quote=True, escaper=None):
 
         if quote:
             for item in re.findall(r"'[^']*'+", expression, re.S):
-                retVal = retVal.replace(item, escaper(item[1:-1]))
+                _ = item[1:-1]
+                if _:
+                    retVal = retVal.replace(item, escaper(_))
         else:
             retVal = escaper(expression)
 
