* ext/syck/emitter.c: new emitter code.

* ext/syck/rubyext.c: Emitter class.

* lib/yaml.rb: Load Syck emitter, if available.

* lib/yaml/stream.rb: ditto.

* lib/yaml/baseemitter.rb: underlying class for all emitters.

* lib/yaml/rubytypes.rb: use BaseEmitter abstraction.

* lib/yaml/emitter.rb: ditto.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@4066 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 36 insertions, 1 deletions

diff --git a/lib/yaml.rb b/lib/yaml.rb
index 39e176541e..d33f2e202a 100644
--- a/lib/yaml.rb
+++ b/lib/yaml.rb
@@ -12,18 +12,29 @@ module YAML
         require 'yaml/syck'
         @@parser = YAML::Syck::Parser
         @@loader = YAML::Syck::DefaultLoader
+        @@emitter = YAML::Syck::Emitter
     rescue LoadError
         require 'yaml/parser'
         @@parser = YAML::Parser
         @@loader = YAML::DefaultLoader
+        require 'yaml/emitter'
+        @@emitter = YAML::Emitter
     end
-    require 'yaml/emitter'
     require 'yaml/loader'
     require 'yaml/stream'
 
 	#
 	# Load a single document from the current stream
 	#
+	def YAML.dump( obj, io = nil )
+        io ||= ""
+        io << obj.to_yaml
+        io
+	end
+
+	#
+	# Load a single document from the current stream
+	#
 	def YAML.load( io )
 		yp = @@parser.new.load( io )
 	end
@@ -158,6 +169,30 @@ module YAML
         end
     end
 
+	#
+	# Allocate an Emitter if needed
+	#
+	def YAML.quick_emit( oid, opts = {}, &e )
+		old_opt = nil
+		if opts[:Emitter].is_a? @@emitter
+			out = opts.delete( :Emitter )
+			old_opt = out.options.dup
+			out.options.update( opts )
+		else
+			out = @@emitter.new( opts )
+		end
+        aidx = out.start_object( oid )
+        if aidx
+            out.simple( "*#{ aidx }" )
+        else
+            e.call( out )
+        end
+		if old_opt.is_a? Hash
+			out.options = old_opt
+		end 
+		out.end_object
+	end
+	
 end
 
 require 'yaml/rubytypes'