detect zawgyi-unicode if string contain myanmar characters

config/initializers/prawn_text.rb

@@ -4,6 +4,8 @@ Prawn::Text.module_eval do
 
   def text(string, options = {})
     return false if string.nil?
+
+    unless string.match(/[\u1000-\u109F]/).nil?
       detector = MyanmarTools::ZawgyiDetector.new
       score    = detector.get_zawgyi_probability(string)
       if score > 0 && score < 0.05
@@ -12,6 +14,7 @@ Prawn::Text.module_eval do
       end
       # we modify the options. don't change the user's hash
       options = options.dup
+    end
 
     p = options[:inline_format]
     if p
@@ -25,4 +28,3 @@ Prawn::Text.module_eval do
     formatted_text(array, options)
   end
 end
-