s=(1..255).to_a.pack("C*"); p(YAML.load(s.to_yaml)==s) #=> false

On head of ruby_1_8, the following code returns false:

  s=(1..255).to_a.pack("C*")
  p(YAML.load(s.to_yaml)==s) #=> false

How about the patch in [ruby-core:03280] and the following patch:

--- ruby-1.8.2/lib/yaml/baseemitter.rb	6 May 2004 06:39:45 -0000	1.1.2.1
+++ ruby-1.8.2/lib/yaml/baseemitter.rb	16 Aug 2004 16:30:52 -0000
@@ -57,9 +57,6 @@
                     block += options(:Indent).to_s
                 end
             end
-			if valx =~ /#{YAML::ESCAPE_CHAR}/
-				valx = YAML::escape( valx )
-			end
 			if block[0] == ?> 
 				valx = fold( valx ) 
 			end
@@ -133,8 +130,8 @@
 					chop_s = true
 				end
 				folded += value.slice!( 0, width.include?( last ) ? last + 1 :
options(:BestWidth) )
-				folded.chop! if chop_s
 				folded += "\n" unless value.empty?
+				folded.chop! if chop_s
 			end
 			folded
 		end

A test:
--- test/yaml/test_yaml.rb      16 May 2004 16:09:41 -0000      1.5.2.1
+++ test/yaml/test_yaml.rb      16 Aug 2004 17:24:48 -0000
@@ -100,6 +100,7 @@
 8: ": started string"
 EOY
                )
+               assert_cycle((1..255).to_a.pack("C*"))
        end
 
        #

-- 
akira yamada   <URL:http://arika.org>