Import psych-3.0.0.beta1 from ruby/psych.

  * Removed deprecated code.
  * Removed code related syck gem.
  * Fixed typos.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58256 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

9 files changed, 10 insertions, 167 deletions

diff --git a/ext/psych/lib/psych.rb b/ext/psych/lib/psych.rb
index b117b25f45..9959320a7f 100644
--- a/ext/psych/lib/psych.rb
+++ b/ext/psych/lib/psych.rb
@@ -17,7 +17,6 @@ require 'psych/omap'
 require 'psych/set'
 require 'psych/coder'
 require 'psych/core_ext'
-require 'psych/deprecated'
 require 'psych/stream'
 require 'psych/json/tree_builder'
 require 'psych/json/stream'
diff --git a/ext/psych/lib/psych/core_ext.rb b/ext/psych/lib/psych/core_ext.rb
index 1a98279afd..1232abf3d9 100644
--- a/ext/psych/lib/psych/core_ext.rb
+++ b/ext/psych/lib/psych/core_ext.rb
@@ -4,31 +4,14 @@ class Object
     Psych.add_tag(url, self)
   end
 
-  # FIXME: rename this to "to_yaml" when syck is removed
-
   ###
   # call-seq: to_yaml(options = {})
   #
   # Convert an object to YAML.  See Psych.dump for more information on the
   # available +options+.
-  def psych_to_yaml options = {}
+  def to_yaml options = {}
     Psych.dump self, options
   end
-  remove_method :to_yaml rescue nil
-  alias :to_yaml :psych_to_yaml
-end
-
-class Module
-  def psych_yaml_as url
-    return if caller[0].end_with?('rubytypes.rb')
-    if $VERBOSE
-      warn "#{caller[0]}: yaml_as is deprecated, please use yaml_tag"
-    end
-    Psych.add_tag(url, self)
-  end
-
-  remove_method :yaml_as rescue nil
-  alias :yaml_as :psych_yaml_as
 end
 
 if defined?(::IRB)
diff --git a/ext/psych/lib/psych/deprecated.rb b/ext/psych/lib/psych/deprecated.rb
deleted file mode 100644
index 165d2102b4..0000000000
--- a/ext/psych/lib/psych/deprecated.rb
+++ /dev/null
@@ -1,86 +0,0 @@
-# frozen_string_literal: false
-require 'date'
-
-module Psych
-  DEPRECATED = __FILE__ # :nodoc:
-
-  module DeprecatedMethods # :nodoc:
-    attr_accessor :taguri
-    attr_accessor :to_yaml_style
-  end
-
-  def self.quick_emit thing, opts = {}, &block # :nodoc:
-    warn "#{caller[0]}: YAML.quick_emit is deprecated" if $VERBOSE && !caller[0].start_with?(File.dirname(__FILE__))
-    target = eval 'self', block.binding
-    target.extend DeprecatedMethods
-    metaclass = class << target; self; end
-    metaclass.send(:define_method, :encode_with) do |coder|
-      target.taguri        = coder.tag
-      target.to_yaml_style = coder.style
-      block.call coder
-    end
-    target.psych_to_yaml unless opts[:nodump]
-  end
-
-  # This method is deprecated, use Psych.load_stream instead.
-  def self.load_documents yaml, &block
-    if $VERBOSE
-      warn "#{caller[0]}: load_documents is deprecated, use load_stream"
-    end
-    list = load_stream yaml
-    return list unless block_given?
-    list.each(&block)
-  end
-
-  def self.detect_implicit thing
-    warn "#{caller[0]}: detect_implicit is deprecated" if $VERBOSE
-    return '' unless String === thing
-    return 'null' if '' == thing
-    ss = ScalarScanner.new(ClassLoader.new)
-    ss.tokenize(thing).class.name.downcase
-  end
-
-  def self.add_ruby_type type_tag, &block
-    warn "#{caller[0]}: add_ruby_type is deprecated, use add_domain_type" if $VERBOSE
-    domain = 'ruby.yaml.org,2002'
-    key = ['tag', domain, type_tag].join ':'
-    @domain_types[key] = [key, block]
-  end
-
-  def self.add_private_type type_tag, &block
-    warn "#{caller[0]}: add_private_type is deprecated, use add_domain_type" if $VERBOSE
-    domain = 'x-private'
-    key = [domain, type_tag].join ':'
-    @domain_types[key] = [key, block]
-  end
-
-  def self.tagurize thing
-    warn "#{caller[0]}: add_private_type is deprecated, use add_domain_type" if $VERBOSE
-    return thing unless String === thing
-    "tag:yaml.org,2002:#{thing}"
-  end
-
-  def self.read_type_class type, reference
-    warn "#{caller[0]}: read_type_class is deprecated" if $VERBOSE
-    _, _, type, name = type.split ':', 4
-
-    reference = name.split('::').inject(reference) do |k,n|
-      k.const_get(n.to_sym)
-    end if name
-    [type, reference]
-  end
-
-  def self.object_maker klass, hash
-    warn "#{caller[0]}: object_maker is deprecated" if $VERBOSE
-    klass.allocate.tap do |obj|
-      hash.each { |k,v| obj.instance_variable_set(:"@#{k}", v) }
-    end
-  end
-end
-
-class Object
-  undef :to_yaml_properties rescue nil
-  def to_yaml_properties # :nodoc:
-    instance_variables
-  end
-end
diff --git a/ext/psych/lib/psych/scalar_scanner.rb b/ext/psych/lib/psych/scalar_scanner.rb
index a849359d18..449efa4e53 100644
--- a/ext/psych/lib/psych/scalar_scanner.rb
+++ b/ext/psych/lib/psych/scalar_scanner.rb
@@ -10,7 +10,6 @@ module Psych
 
     # Taken from http://yaml.org/type/float.html
     FLOAT = /^(?:[-+]?([0-9][0-9_,]*)?\.[0-9]*([eE][-+][0-9]+)?(?# base 10)
-              |[-+]?[0-9][0-9_,]*(:[0-5]?[0-9])+\.[0-9_]*(?# base 60)
               |[-+]?\.(inf|Inf|INF)(?# infinity)
               |\.(nan|NaN|NAN)(?# not a number))$/x
 
@@ -83,13 +82,13 @@ module Psych
         else
           @symbol_cache[string] = class_loader.symbolize(string.sub(/^:/, ''))
         end
-      when /^[-+]?[0-9][0-9_]*(:[0-5]?[0-9])+$/
+      when /^[-+]?[0-9][0-9_]*(:[0-5]?[0-9]){1,2}$/
         i = 0
         string.split(':').each_with_index do |n,e|
           i += (n.to_i * 60 ** (e - 2).abs)
         end
         i
-      when /^[-+]?[0-9][0-9_]*(:[0-5]?[0-9])+\.[0-9_]*$/
+      when /^[-+]?[0-9][0-9_]*(:[0-5]?[0-9]){1,2}\.[0-9_]*$/
         i = 0
         string.split(':').each_with_index do |n,e|
           i += (n.to_f * 60 ** (e - 2).abs)
diff --git a/ext/psych/lib/psych/versions.rb b/ext/psych/lib/psych/versions.rb
index 689d4f3db6..12029f0a68 100644
--- a/ext/psych/lib/psych/versions.rb
+++ b/ext/psych/lib/psych/versions.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: false
 module Psych
   # The version is Psych you're using
-  VERSION = '2.2.3'
+  VERSION = '3.0.0.beta1'
 
   if RUBY_ENGINE == 'jruby'
     DEFAULT_SNAKEYAML_VERSION = '1.18'.freeze
diff --git a/ext/psych/lib/psych/visitors/to_ruby.rb b/ext/psych/lib/psych/visitors/to_ruby.rb
index fd1c8e6caf..d1318b3ca0 100644
--- a/ext/psych/lib/psych/visitors/to_ruby.rb
+++ b/ext/psych/lib/psych/visitors/to_ruby.rb
@@ -380,11 +380,6 @@ module Psych
 
         if o.respond_to?(:init_with)
           o.init_with c
-        elsif o.respond_to?(:yaml_initialize)
-          if $VERBOSE
-            warn "Implementing #{o.class}#yaml_initialize is deprecated, please implement \"init_with(coder)\""
-          end
-          o.yaml_initialize c.tag, c.map
         else
           h.each { |k,v| o.instance_variable_set(:"@#{k}", v) }
         end
diff --git a/ext/psych/lib/psych/visitors/yaml_tree.rb b/ext/psych/lib/psych/visitors/yaml_tree.rb
index 11214ecbf4..cae876c872 100644
--- a/ext/psych/lib/psych/visitors/yaml_tree.rb
+++ b/ext/psych/lib/psych/visitors/yaml_tree.rb
@@ -53,15 +53,6 @@ module Psych
         new(emitter, ss, options)
       end
 
-      def self.new emitter = nil, ss = nil, options = nil
-        return super if emitter && ss && options
-
-        if $VERBOSE
-          warn "This API is deprecated, please pass an emitter, scalar scanner, and options or call #{self}.create() (#{caller.first})"
-        end
-        create emitter, ss
-      end
-
       def initialize emitter, ss, options
         super()
         @started    = false
@@ -139,24 +130,6 @@ module Psych
           return @emitter.alias anchor
         end
 
-        if target.respond_to?(:to_yaml)
-          begin
-            loc = target.method(:to_yaml).source_location.first
-            if loc !~ /(syck\/rubytypes.rb|psych\/core_ext.rb)/
-              unless target.respond_to?(:encode_with)
-                if $VERBOSE
-                  warn "implementing to_yaml is deprecated, please implement \"encode_with\""
-                end
-
-                target.to_yaml(:nodump => true)
-              end
-            end
-          rescue
-            # public_method or source_location might be overridden,
-            # and it's OK to skip it since it's only to emit a warning
-          end
-        end
-
         if target.respond_to?(:encode_with)
           dump_coder target
         else
@@ -336,7 +309,7 @@ module Psych
         end
 
         is_primitive = o.class == ::String
-        ivars = find_ivars o, is_primitive
+        ivars = is_primitive ? [] : o.instance_variables
 
         if ivars.empty?
           unless is_primitive
@@ -527,24 +500,6 @@ module Psych
         end
       end
 
-      # FIXME: remove this method once "to_yaml_properties" is removed
-      def find_ivars target, is_primitive=false
-        begin
-          loc = target.method(:to_yaml_properties).source_location.first
-          unless loc.start_with?(Psych::DEPRECATED) || loc.end_with?('rubytypes.rb')
-            if $VERBOSE
-              warn "#{loc}: to_yaml_properties is deprecated, please implement \"encode_with(coder)\""
-            end
-            return target.to_yaml_properties
-          end
-        rescue
-          # public_method or source_location might be overridden,
-          # and it's OK to skip it since it's only to emit a warning.
-        end
-
-        is_primitive ? [] : target.instance_variables
-      end
-
       def register target, yaml_obj
         @st.register target, yaml_obj
         yaml_obj
@@ -586,9 +541,7 @@ module Psych
       end
 
       def dump_ivars target
-        ivars = find_ivars target
-
-        ivars.each do |iv|
+        target.instance_variables.each do |iv|
           @emitter.scalar("#{iv.to_s.sub(/^@/, '')}", nil, nil, true, false, Nodes::Scalar::ANY)
           accept target.instance_variable_get(iv)
         end
diff --git a/ext/psych/psych.gemspec b/ext/psych/psych.gemspec
index c73df3580c..73e3c34cbf 100644
--- a/ext/psych/psych.gemspec
+++ b/ext/psych/psych.gemspec
@@ -2,7 +2,7 @@
 
 Gem::Specification.new do |s|
   s.name = "psych"
-  s.version = "2.2.3"
+  s.version = "3.0.0.beta1"
   s.authors = ["Aaron Patterson", "SHIBATA Hiroshi", "Charles Oliver Nutter"]
   s.email = ["aaron@tenderlovemaking.com", "hsbt@ruby-lang.org", "headius@headius.com"]
   s.date = "2016-11-14"
@@ -17,7 +17,7 @@ DESCRIPTION
   s.require_paths = ["lib"]
 
   # for ruby core repository. It was generated by `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
-  s.files = [".gitignore", ".travis.yml", "CHANGELOG.rdoc", "Gemfile", "Mavenfile", "README.md", "Rakefile", "bin/console", "bin/setup", "ext/psych/.gitignore", "ext/psych/depend", "ext/psych/extconf.rb", "ext/psych/psych.c", "ext/psych/psych.h", "ext/psych/psych_emitter.c", "ext/psych/psych_emitter.h", "ext/psych/psych_parser.c", "ext/psych/psych_parser.h", "ext/psych/psych_to_ruby.c", "ext/psych/psych_to_ruby.h", "ext/psych/psych_yaml_tree.c", "ext/psych/psych_yaml_tree.h", "ext/psych/yaml/LICENSE", "ext/psych/yaml/api.c", "ext/psych/yaml/config.h", "ext/psych/yaml/dumper.c", "ext/psych/yaml/emitter.c", "ext/psych/yaml/loader.c", "ext/psych/yaml/parser.c", "ext/psych/yaml/reader.c", "ext/psych/yaml/scanner.c", "ext/psych/yaml/writer.c", "ext/psych/yaml/yaml.h", "ext/psych/yaml/yaml_private.h", "lib/psych.rb", "lib/psych/class_loader.rb", "lib/psych/coder.rb", "lib/psych/core_ext.rb", "lib/psych/deprecated.rb", "lib/psych/exception.rb", "lib/psych/handler.rb", "lib/psych/handlers/document_stream.rb", "lib/psych/handlers/recorder.rb", "lib/psych/json/ruby_events.rb", "lib/psych/json/stream.rb", "lib/psych/json/tree_builder.rb", "lib/psych/json/yaml_events.rb", "lib/psych/nodes.rb", "lib/psych/nodes/alias.rb", "lib/psych/nodes/document.rb", "lib/psych/nodes/mapping.rb", "lib/psych/nodes/node.rb", "lib/psych/nodes/scalar.rb", "lib/psych/nodes/sequence.rb", "lib/psych/nodes/stream.rb", "lib/psych/omap.rb", "lib/psych/parser.rb", "lib/psych/scalar_scanner.rb", "lib/psych/set.rb", "lib/psych/stream.rb", "lib/psych/streaming.rb", "lib/psych/syntax_error.rb", "lib/psych/tree_builder.rb", "lib/psych/versions.rb", "lib/psych/visitors.rb","lib/psych/visitors/depth_first.rb", "lib/psych/visitors/emitter.rb", "lib/psych/visitors/json_tree.rb", "lib/psych/visitors/to_ruby.rb", "lib/psych/visitors/visitor.rb", "lib/psych/visitors/yaml_tree.rb", "lib/psych/y.rb", "psych.gemspec"]
+  s.files = [".gitignore", ".travis.yml", "CHANGELOG.rdoc", "Gemfile", "Mavenfile", "README.md", "Rakefile", "bin/console", "bin/setup", "ext/psych/.gitignore", "ext/psych/depend", "ext/psych/extconf.rb", "ext/psych/psych.c", "ext/psych/psych.h", "ext/psych/psych_emitter.c", "ext/psych/psych_emitter.h", "ext/psych/psych_parser.c", "ext/psych/psych_parser.h", "ext/psych/psych_to_ruby.c", "ext/psych/psych_to_ruby.h", "ext/psych/psych_yaml_tree.c", "ext/psych/psych_yaml_tree.h", "ext/psych/yaml/LICENSE", "ext/psych/yaml/api.c", "ext/psych/yaml/config.h", "ext/psych/yaml/dumper.c", "ext/psych/yaml/emitter.c", "ext/psych/yaml/loader.c", "ext/psych/yaml/parser.c", "ext/psych/yaml/reader.c", "ext/psych/yaml/scanner.c", "ext/psych/yaml/writer.c", "ext/psych/yaml/yaml.h", "ext/psych/yaml/yaml_private.h", "lib/psych.rb", "lib/psych/class_loader.rb", "lib/psych/coder.rb", "lib/psych/core_ext.rb", "lib/psych/exception.rb", "lib/psych/handler.rb", "lib/psych/handlers/document_stream.rb", "lib/psych/handlers/recorder.rb", "lib/psych/json/ruby_events.rb", "lib/psych/json/stream.rb", "lib/psych/json/tree_builder.rb", "lib/psych/json/yaml_events.rb", "lib/psych/nodes.rb", "lib/psych/nodes/alias.rb", "lib/psych/nodes/document.rb", "lib/psych/nodes/mapping.rb", "lib/psych/nodes/node.rb", "lib/psych/nodes/scalar.rb", "lib/psych/nodes/sequence.rb", "lib/psych/nodes/stream.rb", "lib/psych/omap.rb", "lib/psych/parser.rb", "lib/psych/scalar_scanner.rb", "lib/psych/set.rb", "lib/psych/stream.rb", "lib/psych/streaming.rb", "lib/psych/syntax_error.rb", "lib/psych/tree_builder.rb", "lib/psych/versions.rb", "lib/psych/visitors.rb","lib/psych/visitors/depth_first.rb", "lib/psych/visitors/emitter.rb", "lib/psych/visitors/json_tree.rb", "lib/psych/visitors/to_ruby.rb", "lib/psych/visitors/visitor.rb", "lib/psych/visitors/yaml_tree.rb", "lib/psych/y.rb", "psych.gemspec"]
 
   s.rdoc_options = ["--main", "README.md"]
   s.extra_rdoc_files = ["CHANGELOG.rdoc", "README.md"]
diff --git a/ext/psych/yaml/scanner.c b/ext/psych/yaml/scanner.c
index bfdf3abda5..3ef90dc66b 100644
--- a/ext/psych/yaml/scanner.c
+++ b/ext/psych/yaml/scanner.c
@@ -3504,12 +3504,12 @@ yaml_parser_scan_plain_scalar(yaml_parser_t *parser, yaml_token_t *token)
         {
             if (IS_BLANK(parser->buffer))
             {
-                /* Check for tab character that abuse indentation. */
+                /* Check for tab characters that abuse indentation. */
 
                 if (leading_blanks && (int)parser->mark.column < indent
                         && IS_TAB(parser->buffer)) {
                     yaml_parser_set_scanner_error(parser, "while scanning a plain scalar",
-                            start_mark, "found a tab character that violate indentation");
+                            start_mark, "found a tab character that violates indentation");
                     goto error;
                 }