matching.rb in zxcvbn-0.1.7

- old
+ new

@@ -110,14 +110,10 @@
           6 # 1991 11 11
         ]
       ]
     }.freeze
 
-    def self.empty(obj)
-      obj.empty?
-    end
-
     def self.translate(string, chr_map)
       string.chars.map { |chr| chr_map[chr] || chr }.join
     end
 
     def self.sorted(matches)
@@ -248,11 +244,11 @@
                 dup_l33t_index = i
                 break
               end
             end
             if dup_l33t_index == -1
-              sub_extension = sub.concat([[l33t_chr, first_key]])
+              sub_extension = sub + [[l33t_chr, first_key]]
               next_subs << sub_extension
             else
               sub_alternative = sub.dup
               sub_alternative.delete_at(dup_l33t_index)
               sub_alternative << [l33t_chr, first_key]
@@ -281,10 +277,10 @@
     end
 
     def self.l33t_match(password, _ranked_dictionaries = RANKED_DICTIONARIES, _l33t_table = L33T_TABLE)
       matches = []
       enumerate_l33t_subs(relevant_l33t_subtable(password, _l33t_table)).each do |sub|
-        break if empty(sub) # corner case: password has no relevant subs.
+        break if sub.empty? # corner case: password has no relevant subs.
 
         subbed_password = translate(password, sub)
         dictionary_match(subbed_password, _ranked_dictionaries).each do |match|
           token = password[match["i"]..match["j"]]
           if token.downcase == match["matched_word"]