lib/it/parser.rb in it-1.0.0 vs lib/it/parser.rb in it-2.0.0

@@ -1,10 +1,10 @@
 module It
   # Parses the string and replaces all interpolations accordingly.
   class Parser
     attr_reader :string, :options
 
-    INTERPOLATION_REGEXP = /%\{[^{}]+\}/
+    INTERPOLATION_REGEXP = /%\{[^{}]+\}/.freeze
 
     def self.backend_options(options)
       options.with_indifferent_access.slice(:default, :locale, :scope)
     end