1 files changed, 36 insertions, 0 deletions
diff --git a/lib/gitlab/word_diff/segments/chunk.rb b/lib/gitlab/word_diff/segments/chunk.rb
new file mode 100644
index 00000000000..7c5850666f9
--- /dev/null
+++ b/lib/gitlab/word_diff/segments/chunk.rb
@@ -0,0 +1,36 @@
+# frozen_string_literal: true
+
+# Chunk is a part of the line that starts with ` `, `-`, `+`
+# Consecutive chunks build a line. Line that starts with `~` is an identifier of
+# end of the line.
+module Gitlab
+  module WordDiff
+    module Segments
+      class Chunk
+        def initialize(line)
+          @line = line
+        end
+
+        def removed?
+          line[0] == '-'
+        end
+
+        def added?
+          line[0] == '+'
+        end
+
+        def to_s
+          line[1..] || ''
+        end
+
+        def length
+          to_s.length
+        end
+
+        private
+
+        attr_reader :line
+      end
+    end
+  end
+end