* ext/psych/*: merge psych master(8737e5b). It contains following fixes.

https://github.com/tenderlove/psych/pull/242
  https://github.com/tenderlove/psych/pull/246 [ruby-list:50219]
* test/psych/*: ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51741 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,10 @@
+Wed Sep  2 18:49:55 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
+
+	* ext/psych/*: merge psych master(8737e5b). It contains following fixes.
+	  https://github.com/tenderlove/psych/pull/242
+	  https://github.com/tenderlove/psych/pull/246 [ruby-list:50219]
+	* test/psych/*: ditto.
+
 Wed Sep  2 18:04:13 2015  Koichi Sasada  <ko1@atdot.net>
 
 	* vm_insnhelper.h (GET_PC_COUNT): remove unused macro.

ext/psych/lib/psych.rb

@@ -223,7 +223,7 @@ require 'psych/class_loader'
 
 module Psych
   # The version is Psych you're using
-  VERSION         = '2.0.14'
+  VERSION         = '2.0.15'
 
   # The version of libyaml Psych is using
   LIBYAML_VERSION = Psych.libyaml_version.join '.'

ext/psych/lib/psych/visitors/yaml_tree.rb

@@ -156,7 +156,7 @@ module Psych
       end
 
       def visit_Psych_Omap o
-        seq = @emitter.start_sequence(nil, '!omap', false, Nodes::Sequence::BLOCK)
+        seq = @emitter.start_sequence(nil, 'tag:yaml.org,2002:omap', false, Nodes::Sequence::BLOCK)
         register(o, seq)
 
         o.each { |k,v| visit_Hash k => v }

ext/psych/psych_emitter.c

@@ -15,7 +15,11 @@ static void emit(yaml_emitter_t * emitter, yaml_event_t * event)
 static int writer(void *ctx, unsigned char *buffer, size_t size)
 {
     VALUE io = (VALUE)ctx;
+#ifdef HAVE_RUBY_ENCODING_H
+    VALUE str = rb_enc_str_new((const char *)buffer, (long)size, rb_utf8_encoding());
+#else
     VALUE str = rb_str_new((const char *)buffer, (long)size);
+#endif
     VALUE wrote = rb_funcall(io, id_write, 1, str);
     return (int)NUM2INT(wrote);
 }

test/psych/test_encoding.rb

@@ -249,6 +249,15 @@ module Psych
       assert_encodings @utf8, @handler.strings
     end
 
+    def test_dump_non_ascii_string_to_file
+      Tempfile.create(['utf8', 'yml'], :encoding => 'UTF-8') do |t|
+        h = {'one' => 'いち'}
+        Psych.dump(h, t)
+        t.close
+        assert_equal h, Psych.load_file(t.path)
+      end
+    end
+
     private
     def assert_encodings encoding, strings
       strings.each do |str|