check new line

@@ -317,12 +317,12 @@ module Kanjai
 
     def self.replace_text_marker(parent_node_name, text, hash_value)
       new_text = text.dup
+
       if !hash_value.nil? and !text.nil?
         hash_value.each do |key, value|
           if !key.nil? and !value.nil?
-            work_value = value
-            work_value.gsub!(/\r\n/, "#newline#") if !['code', 'pre'].include?(parent_node_name)
-
+            work_value = value.dup
+            work_value.gsub!(/\r\n/, "#newline#") if !['code', 'pre'].include?(parent_node_name.to_s.downcase)
             new_text.gsub!(key, work_value)
           end
         end

 module Kanjai
-  VERSION = "0.0.299"
+  VERSION = "0.0.300"
 end