lib/json/pure/generator.rb in json_pure-1.6.5 vs lib/json/pure/generator.rb in json_pure-1.6.6

@@ -253,11 +253,15 @@
         # Generates a valid JSON document from object +obj+ and returns the
         # result. If no valid JSON document can be created this method raises a
         # GeneratorError exception.
         def generate(obj)
           result = obj.to_json(self)
-          if !@quirks_mode && result !~ /\A\s*(?:\[.*\]|\{.*\})\s*\Z/m
-            raise GeneratorError, "only generation of JSON objects or arrays allowed"
+          unless @quirks_mode
+            unless result =~ /\A\s*\[/ && result =~ /\]\s*\Z/ ||
+              result =~ /\A\s*\{/ && result =~ /\}\s*\Z/
+            then
+              raise GeneratorError, "only generation of JSON objects or arrays allowed"
+            end
           end
           result
         end
 
         # Return the value returned by method +name+.