regexps now roundtrip

2 files changed, 10 insertions, 0 deletions

diff --git a/lib/psych/visitors/yast_builder.rb b/lib/psych/visitors/yast_builder.rb
index 1f1eae4..1cfcd33 100644
--- a/lib/psych/visitors/yast_builder.rb
+++ b/lib/psych/visitors/yast_builder.rb
@@ -21,6 +21,10 @@ module Psych
         raise TypeError, "Can't dump #{target.class}"
       end
 
+      def visit_Regexp o
+        append Nodes::Scalar.new(o.inspect, nil, '!ruby/regexp', false)
+      end
+
       def visit_Time o
         formatted = o.strftime("%Y-%m-%d %H:%M:%S")
         if o.utc?
diff --git a/test/visitors/test_yast_builder.rb b/test/visitors/test_yast_builder.rb
index 8205430..dec8c6a 100644
--- a/test/visitors/test_yast_builder.rb
+++ b/test/visitors/test_yast_builder.rb
@@ -8,6 +8,12 @@ module Psych
         @v = Visitors::YASTBuilder.new
       end
 
+      def test_regexp
+        assert_round_trip(/foo/)
+        assert_round_trip(/foo/i)
+        assert_round_trip(/foo/mx)
+      end
+
       def test_time
         assert_round_trip Time.now
       end