trigram.rb in fuzzily-0.2.4

- old
+ new

@@ -2,10 +2,11 @@
 require 'delegate'
 module Fuzzily
   class String < SimpleDelegator
 
     def trigrams
+      return [] if __getobj__.nil?
       normalized = self.normalize
       number_of_trigrams = normalized.length - 3
       trigrams = (0..number_of_trigrams).map { |index| normalized[index,3] }.uniq
     end
 
@@ -16,10 +17,9 @@
     protected
 
     # Remove accents, downcase, replace spaces and word start with '*',
     # return list of normalized words
     def normalize
-      # Iconv.iconv('ascii//translit//ignore', 'utf-8', self).first.
       ActiveSupport::Multibyte::Chars.new(self).
         mb_chars.normalize(:kd).gsub(/[^\x00-\x7F]/,'').downcase.to_s.
         gsub(/[^a-z]/,' ').
         gsub(/\s+/,'*').
         gsub(/^/,'**').