symbol round trip

2 files changed, 6 insertions, 1 deletions

diff --git a/lib/psych/visitors/to_ruby.rb b/lib/psych/visitors/to_ruby.rb
index ee603ff..e585a01 100644
--- a/lib/psych/visitors/to_ruby.rb
+++ b/lib/psych/visitors/to_ruby.rb
@@ -15,6 +15,7 @@ module Psych
 
         unless o.quoted
           return nil if o.value =~ /^(null|~)$/i or o.value.empty?
+          return o.value.sub(/^:/,'').to_sym if o.value =~ /^:/
         end
 
         o.value
diff --git a/lib/psych/visitors/yast_builder.rb b/lib/psych/visitors/yast_builder.rb
index 52eae59..c3bd55d 100644
--- a/lib/psych/visitors/yast_builder.rb
+++ b/lib/psych/visitors/yast_builder.rb
@@ -21,7 +21,7 @@ module Psych
       end
 
       def visit_String o
-        quote = !!(o =~ /^(null|~)$/i or o.empty?)
+        quote = !!(o =~ /^(null|~)$/i or o =~ /^:/ or o.empty?)
 
         scalar = Nodes::Scalar.new(o, nil, nil, !quote, quote)
         @stack.last.children << scalar
@@ -52,6 +52,10 @@ module Psych
         append Nodes::Scalar.new('', nil, 'tag:yaml.org,2002:null', false)
       end
 
+      def visit_Symbol o
+        append Nodes::Scalar.new ":#{o}"
+      end
+
       private
       def append o
         @stack.last.children << o