string_helpers.rb in eco-helpers-2.0.21

- old
+ new

@@ -15,11 +15,11 @@
         end
 
         def get_words(str, normalized: false)
           return [] unless str
           str = normalize_string(str) unless normalized
-          str.scan(/[a-zA-Z'-]+/)
+          str.scan(/[a-zA-Z'-]+/).compact
         end
 
         # Keeps the start order of the `words` and consecutive `words` together/consecutive.
         # @param str [String] the input string with the words.
         # @param range [Integer, Range] determine the lenght of the generated values.
@@ -59,9 +59,22 @@
         end
 
         def no_blanks(str)
           return nil unless str && str.is_a?(String)
           str.tr(' ', '')
+        end
+
+        # Deletes the words of `str1` and `str2` that match
+        # @return [Array<String>] pair of words.
+        def remove_matching_words(str1, str2, normalized: false)
+          unless normalized
+            str1 = normalize_string(str1)
+            str2 = normalize_string(str2)
+          end
+          return [str1, str2] if !str1 || !str2 || str1.empty? || str2.empty?
+          ws1 = get_words(str1)
+          ws2 = get_words(str2)
+          [(ws1 - ws2).join(" "), (ws2 - ws1).join(" ")]
         end
 
       end
     end
   end