1 files changed, 19 insertions, 0 deletions
diff --git a/lib/gitlab/regex/merge_requests.rb b/lib/gitlab/regex/merge_requests.rb
new file mode 100644
index 00000000000..0fb47e4fbfe
--- /dev/null
+++ b/lib/gitlab/regex/merge_requests.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module Regex
+    module MergeRequests
+      def merge_request
+        @merge_request ||= /(?<merge_request>\d+)(?<format>\+s{,1})?/
+      end
+
+      def merge_request_draft
+        /\A(?i)(\[draft\]|\(draft\)|draft:)/
+      end
+
+      def git_diff_prefix
+        /\A@@( -\d+,\d+ \+\d+(,\d+)? )@@/
+      end
+    end
+  end
+end