Even more refactoring to inline_diff.rb

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

lib/gitlab/inline_diff.rb

@@ -17,6 +17,16 @@ module Gitlab
           next if first_line == "-\n"
 
           first_token = find_first_token(first_line, second_line)
+          apply_first_token(diff_arr, index, first_token)
+
+          last_token = find_last_token(first_line, second_line, first_token)
+          apply_last_token(diff_arr, index, last_token)
+        end
+
+        diff_arr
+      end
+
+      def apply_first_token(diff_arr, index, first_token)
         start = first_token + START
 
         if first_token.empty?
@@ -27,9 +37,9 @@ module Gitlab
           diff_arr[index+1].sub!(first_token, first_token => start)
           diff_arr[index+2].sub!(first_token, first_token => start)
         end
+      end
 
-          last_token = find_last_token(first_line, second_line, first_token)
-
+      def apply_last_token(diff_arr, index, last_token)
         # This is tricky: escape backslashes so that `sub` doesn't interpret them
         # as backreferences. Regexp.escape does NOT do the right thing.
         replace_token = FINISH + last_token.gsub(/\\/, '\&\&')
@@ -37,9 +47,6 @@ module Gitlab
         diff_arr[index+2].sub!(/#{Regexp.escape(last_token)}$/, replace_token)
       end
 
-        diff_arr
-      end
-
       def find_first_token(first_line, second_line)
         max_length = [first_line.size, second_line.size].max
         first_the_same_symbols = 0