Initial checkin of YAML substances.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@3772 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 44 insertions, 0 deletions

diff --git a/lib/yaml/stream.rb b/lib/yaml/stream.rb
new file mode 100644
index 0000000000..3b6919b5dd
--- /dev/null
+++ b/lib/yaml/stream.rb
@@ -0,0 +1,44 @@
+module YAML
+
+	#
+	# YAML::Stream -- for emitting many documents
+	#
+	class Stream
+
+		attr_accessor :documents, :options
+
+		def initialize( opts = {} )
+			@options = opts
+			@documents = []
+		end
+		
+        def []( i )
+            @documents[ i ]
+        end
+
+		def add( doc )
+			@documents << doc
+		end
+
+		def edit( doc_num, doc )
+			@documents[ doc_num ] = doc
+		end
+
+		def emit
+            opts = @options.dup
+			opts[:UseHeader] = true if @documents.length > 1
+			ct = 0
+            out = Emitter.new( opts )
+            @documents.each { |v|
+                if ct > 0
+                    out << "\n--- " 
+                end
+                v.to_yaml( :Emitter => out )
+                ct += 1
+            }
+            out.end_object
+		end
+
+	end
+
+end