lib/yaml-write-stream/yielding.rb in yaml-write-stream-1.0.3 vs lib/yaml-write-stream/yielding.rb in yaml-write-stream-1.0.4

@@ -49,17 +49,21 @@
       emitter.end_mapping
     end
 
     protected
 
-    def write_scalar(value)
+    def write_scalar(value, quote = false)
       @first = false
 
       style = if value == ''
         Psych::Nodes::Scalar::DOUBLE_QUOTED
       else
-        Psych::Nodes::Scalar::ANY
+        if !quote || !value
+          Psych::Nodes::Scalar::ANY
+        else
+          Psych::Nodes::Scalar::DOUBLE_QUOTED
+        end
       end
 
       quoted = value == ''
       value = value ? value : ''
 
@@ -82,10 +86,10 @@
     end
 
     def write_key_value(key, value)
       @first = false
       write_scalar(key)
-      write_scalar(value)
+      write_scalar(value, true)
     end
   end
 
   class YieldingSequenceWriter < YieldingWriter
     def write_element(element)