diff options
Diffstat (limited to 'ruby_2_2/ext/psych')
63 files changed, 0 insertions, 17301 deletions
diff --git a/ruby_2_2/ext/psych/.gitignore b/ruby_2_2/ext/psych/.gitignore deleted file mode 100644 index 836058c169..0000000000 --- a/ruby_2_2/ext/psych/.gitignore +++ /dev/null @@ -1,11 +0,0 @@ -/api.c -/config.h -/dumper.c -/emitter.c -/loader.c -/parser.c -/reader.c -/scanner.c -/writer.c -/yaml.h -/yaml_private.h diff --git a/ruby_2_2/ext/psych/depend b/ruby_2_2/ext/psych/depend deleted file mode 100644 index 79b6c53f50..0000000000 --- a/ruby_2_2/ext/psych/depend +++ /dev/null @@ -1,3 +0,0 @@ -$(OBJS): $(HDRS) $(ruby_headers) \ - $(hdrdir)/ruby/encoding.h \ - $(hdrdir)/ruby/oniguruma.h diff --git a/ruby_2_2/ext/psych/extconf.rb b/ruby_2_2/ext/psych/extconf.rb deleted file mode 100644 index 65e83a3554..0000000000 --- a/ruby_2_2/ext/psych/extconf.rb +++ /dev/null @@ -1,38 +0,0 @@ -# -*- coding: us-ascii -*- -require 'mkmf' -require 'fileutils' - -# :stopdoc: - -dir_config 'libyaml' - -if enable_config("bundled-libyaml", false) || !(find_header('yaml.h') && find_library('yaml', 'yaml_get_version')) - # Embed libyaml since we could not find it. - - $VPATH << "$(srcdir)/yaml" - $INCFLAGS << " -I$(srcdir)/yaml" - - $srcs = Dir.glob("#{$srcdir}/{,yaml/}*.c").map {|n| File.basename(n)} - - if have_macro("_WIN32") - $CPPFLAGS << " -DYAML_DECLARE_STATIC -DHAVE_CONFIG_H" - end - - have_header 'dlfcn.h' - have_header 'inttypes.h' - have_header 'memory.h' - have_header 'stdint.h' - have_header 'stdlib.h' - have_header 'strings.h' - have_header 'string.h' - have_header 'sys/stat.h' - have_header 'sys/types.h' - have_header 'unistd.h' - - find_header 'yaml.h' - have_header 'config.h' -end - -create_makefile 'psych' - -# :startdoc: diff --git a/ruby_2_2/ext/psych/lib/psych.rb b/ruby_2_2/ext/psych/lib/psych.rb deleted file mode 100644 index 1933437ac8..0000000000 --- a/ruby_2_2/ext/psych/lib/psych.rb +++ /dev/null @@ -1,498 +0,0 @@ -require 'psych.so' -require 'psych/nodes' -require 'psych/streaming' -require 'psych/visitors' -require 'psych/handler' -require 'psych/tree_builder' -require 'psych/parser' -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' -require 'psych/handlers/document_stream' -require 'psych/class_loader' - -### -# = Overview -# -# Psych is a YAML parser and emitter. -# Psych leverages libyaml [Home page: http://pyyaml.org/wiki/LibYAML] -# or [HG repo: https://bitbucket.org/xi/libyaml] for its YAML parsing -# and emitting capabilities. In addition to wrapping libyaml, Psych also -# knows how to serialize and de-serialize most Ruby objects to and from -# the YAML format. -# -# = I NEED TO PARSE OR EMIT YAML RIGHT NOW! -# -# # Parse some YAML -# Psych.load("--- foo") # => "foo" -# -# # Emit some YAML -# Psych.dump("foo") # => "--- foo\n...\n" -# { :a => 'b'}.to_yaml # => "---\n:a: b\n" -# -# Got more time on your hands? Keep on reading! -# -# == YAML Parsing -# -# Psych provides a range of interfaces for parsing a YAML document ranging from -# low level to high level, depending on your parsing needs. At the lowest -# level, is an event based parser. Mid level is access to the raw YAML AST, -# and at the highest level is the ability to unmarshal YAML to Ruby objects. -# -# == YAML Emitting -# -# Psych provides a range of interfaces ranging from low to high level for -# producing YAML documents. Very similar to the YAML parsing interfaces, Psych -# provides at the lowest level, an event based system, mid-level is building -# a YAML AST, and the highest level is converting a Ruby object straight to -# a YAML document. -# -# == High-level API -# -# === Parsing -# -# The high level YAML parser provided by Psych simply takes YAML as input and -# returns a Ruby data structure. For information on using the high level parser -# see Psych.load -# -# ==== Reading from a string -# -# Psych.load("--- a") # => 'a' -# Psych.load("---\n - a\n - b") # => ['a', 'b'] -# -# ==== Reading from a file -# -# Psych.load_file("database.yml") -# -# ==== Exception handling -# -# begin -# # The second argument changes only the exception contents -# Psych.parse("--- `", "file.txt") -# rescue Psych::SyntaxError => ex -# ex.file # => 'file.txt' -# ex.message # => "(file.txt): found character that cannot start any token" -# end -# -# === Emitting -# -# The high level emitter has the easiest interface. Psych simply takes a Ruby -# data structure and converts it to a YAML document. See Psych.dump for more -# information on dumping a Ruby data structure. -# -# ==== Writing to a string -# -# # Dump an array, get back a YAML string -# Psych.dump(['a', 'b']) # => "---\n- a\n- b\n" -# -# # Dump an array to an IO object -# Psych.dump(['a', 'b'], StringIO.new) # => #<StringIO:0x000001009d0890> -# -# # Dump an array with indentation set -# Psych.dump(['a', ['b']], :indentation => 3) # => "---\n- a\n- - b\n" -# -# # Dump an array to an IO with indentation set -# Psych.dump(['a', ['b']], StringIO.new, :indentation => 3) -# -# ==== Writing to a file -# -# Currently there is no direct API for dumping Ruby structure to file: -# -# File.open('database.yml', 'w') do |file| -# file.write(Psych.dump(['a', 'b'])) -# end -# -# == Mid-level API -# -# === Parsing -# -# Psych provides access to an AST produced from parsing a YAML document. This -# tree is built using the Psych::Parser and Psych::TreeBuilder. The AST can -# be examined and manipulated freely. Please see Psych::parse_stream, -# Psych::Nodes, and Psych::Nodes::Node for more information on dealing with -# YAML syntax trees. -# -# ==== Reading from a string -# -# # Returns Psych::Nodes::Stream -# Psych.parse_stream("---\n - a\n - b") -# -# # Returns Psych::Nodes::Document -# Psych.parse("---\n - a\n - b") -# -# ==== Reading from a file -# -# # Returns Psych::Nodes::Stream -# Psych.parse_stream(File.read('database.yml')) -# -# # Returns Psych::Nodes::Document -# Psych.parse_file('database.yml') -# -# ==== Exception handling -# -# begin -# # The second argument changes only the exception contents -# Psych.parse("--- `", "file.txt") -# rescue Psych::SyntaxError => ex -# ex.file # => 'file.txt' -# ex.message # => "(file.txt): found character that cannot start any token" -# end -# -# === Emitting -# -# At the mid level is building an AST. This AST is exactly the same as the AST -# used when parsing a YAML document. Users can build an AST by hand and the -# AST knows how to emit itself as a YAML document. See Psych::Nodes, -# Psych::Nodes::Node, and Psych::TreeBuilder for more information on building -# a YAML AST. -# -# ==== Writing to a string -# -# # We need Psych::Nodes::Stream (not Psych::Nodes::Document) -# stream = Psych.parse_stream("---\n - a\n - b") -# -# stream.to_yaml # => "---\n- a\n- b\n" -# -# ==== Writing to a file -# -# # We need Psych::Nodes::Stream (not Psych::Nodes::Document) -# stream = Psych.parse_stream(File.read('database.yml')) -# -# File.open('database.yml', 'w') do |file| -# file.write(stream.to_yaml) -# end -# -# == Low-level API -# -# === Parsing -# -# The lowest level parser should be used when the YAML input is already known, -# and the developer does not want to pay the price of building an AST or -# automatic detection and conversion to Ruby objects. See Psych::Parser for -# more information on using the event based parser. -# -# ==== Reading to Psych::Nodes::Stream structure -# -# parser = Psych::Parser.new(TreeBuilder.new) # => #<Psych::Parser> -# parser = Psych.parser # it's an alias for the above -# -# parser.parse("---\n - a\n - b") # => #<Psych::Parser> -# parser.handler # => #<Psych::TreeBuilder> -# parser.handler.root # => #<Psych::Nodes::Stream> -# -# ==== Receiving an events stream -# -# parser = Psych::Parser.new(Psych::Handlers::Recorder.new) -# -# parser.parse("---\n - a\n - b") -# parser.events # => [list of [event, args] lists] -# # event is one of: Psych::Handler::EVENTS -# # args are the arguments passed to the event -# -# === Emitting -# -# The lowest level emitter is an event based system. Events are sent to a -# Psych::Emitter object. That object knows how to convert the events to a YAML -# document. This interface should be used when document format is known in -# advance or speed is a concern. See Psych::Emitter for more information. -# -# ==== Writing to a Ruby structure -# -# Psych.parser.parse("--- a") # => #<Psych::Parser> -# -# parser.handler.first # => #<Psych::Nodes::Stream> -# parser.handler.first.to_ruby # => ["a"] -# -# parser.handler.root.first # => #<Psych::Nodes::Document> -# parser.handler.root.first.to_ruby # => "a" -# -# # You can instantiate an Emitter manually -# Psych::Visitors::ToRuby.new.accept(parser.handler.root.first) -# # => "a" - -module Psych - # The version is Psych you're using - VERSION = '2.0.8' - - # The version of libyaml Psych is using - LIBYAML_VERSION = Psych.libyaml_version.join '.' - - ### - # Load +yaml+ in to a Ruby data structure. If multiple documents are - # provided, the object contained in the first document will be returned. - # +filename+ will be used in the exception message if any exception is raised - # while parsing. - # - # Raises a Psych::SyntaxError when a YAML syntax error is detected. - # - # Example: - # - # Psych.load("--- a") # => 'a' - # Psych.load("---\n - a\n - b") # => ['a', 'b'] - # - # begin - # Psych.load("--- `", "file.txt") - # rescue Psych::SyntaxError => ex - # ex.file # => 'file.txt' - # ex.message # => "(file.txt): found character that cannot start any token" - # end - def self.load yaml, filename = nil - result = parse(yaml, filename) - result ? result.to_ruby : result - end - - ### - # Safely load the yaml string in +yaml+. By default, only the following - # classes are allowed to be deserialized: - # - # * TrueClass - # * FalseClass - # * NilClass - # * Numeric - # * String - # * Array - # * Hash - # - # Recursive data structures are not allowed by default. Arbitrary classes - # can be allowed by adding those classes to the +whitelist+. They are - # additive. For example, to allow Date deserialization: - # - # Psych.safe_load(yaml, [Date]) - # - # Now the Date class can be loaded in addition to the classes listed above. - # - # Aliases can be explicitly allowed by changing the +aliases+ parameter. - # For example: - # - # x = [] - # x << x - # yaml = Psych.dump x - # Psych.safe_load yaml # => raises an exception - # Psych.safe_load yaml, [], [], true # => loads the aliases - # - # A Psych::DisallowedClass exception will be raised if the yaml contains a - # class that isn't in the whitelist. - # - # A Psych::BadAlias exception will be raised if the yaml contains aliases - # but the +aliases+ parameter is set to false. - def self.safe_load yaml, whitelist_classes = [], whitelist_symbols = [], aliases = false, filename = nil - result = parse(yaml, filename) - return unless result - - class_loader = ClassLoader::Restricted.new(whitelist_classes.map(&:to_s), - whitelist_symbols.map(&:to_s)) - scanner = ScalarScanner.new class_loader - if aliases - visitor = Visitors::ToRuby.new scanner, class_loader - else - visitor = Visitors::NoAliasRuby.new scanner, class_loader - end - visitor.accept result - end - - ### - # Parse a YAML string in +yaml+. Returns the Psych::Nodes::Document. - # +filename+ is used in the exception message if a Psych::SyntaxError is - # raised. - # - # Raises a Psych::SyntaxError when a YAML syntax error is detected. - # - # Example: - # - # Psych.parse("---\n - a\n - b") # => #<Psych::Nodes::Document:0x00> - # - # begin - # Psych.parse("--- `", "file.txt") - # rescue Psych::SyntaxError => ex - # ex.file # => 'file.txt' - # ex.message # => "(file.txt): found character that cannot start any token" - # end - # - # See Psych::Nodes for more information about YAML AST. - def self.parse yaml, filename = nil - parse_stream(yaml, filename) do |node| - return node - end - false - end - - ### - # Parse a file at +filename+. Returns the Psych::Nodes::Document. - # - # Raises a Psych::SyntaxError when a YAML syntax error is detected. - def self.parse_file filename - File.open filename, 'r:bom|utf-8' do |f| - parse f, filename - end - end - - ### - # Returns a default parser - def self.parser - Psych::Parser.new(TreeBuilder.new) - end - - ### - # Parse a YAML string in +yaml+. Returns the Psych::Nodes::Stream. - # This method can handle multiple YAML documents contained in +yaml+. - # +filename+ is used in the exception message if a Psych::SyntaxError is - # raised. - # - # If a block is given, a Psych::Nodes::Document node will be yielded to the - # block as it's being parsed. - # - # Raises a Psych::SyntaxError when a YAML syntax error is detected. - # - # Example: - # - # Psych.parse_stream("---\n - a\n - b") # => #<Psych::Nodes::Stream:0x00> - # - # Psych.parse_stream("--- a\n--- b") do |node| - # node # => #<Psych::Nodes::Document:0x00> - # end - # - # begin - # Psych.parse_stream("--- `", "file.txt") - # rescue Psych::SyntaxError => ex - # ex.file # => 'file.txt' - # ex.message # => "(file.txt): found character that cannot start any token" - # end - # - # See Psych::Nodes for more information about YAML AST. - def self.parse_stream yaml, filename = nil, &block - if block_given? - parser = Psych::Parser.new(Handlers::DocumentStream.new(&block)) - parser.parse yaml, filename - else - parser = self.parser - parser.parse yaml, filename - parser.handler.root - end - end - - ### - # call-seq: - # Psych.dump(o) -> string of yaml - # Psych.dump(o, options) -> string of yaml - # Psych.dump(o, io) -> io object passed in - # Psych.dump(o, io, options) -> io object passed in - # - # Dump Ruby object +o+ to a YAML string. Optional +options+ may be passed in - # to control the output format. If an IO object is passed in, the YAML will - # be dumped to that IO object. - # - # Example: - # - # # Dump an array, get back a YAML string - # Psych.dump(['a', 'b']) # => "---\n- a\n- b\n" - # - # # Dump an array to an IO object - # Psych.dump(['a', 'b'], StringIO.new) # => #<StringIO:0x000001009d0890> - # - # # Dump an array with indentation set - # Psych.dump(['a', ['b']], :indentation => 3) # => "---\n- a\n- - b\n" - # - # # Dump an array to an IO with indentation set - # Psych.dump(['a', ['b']], StringIO.new, :indentation => 3) - def self.dump o, io = nil, options = {} - if Hash === io - options = io - io = nil - end - - visitor = Psych::Visitors::YAMLTree.create options - visitor << o - visitor.tree.yaml io, options - end - - ### - # Dump a list of objects as separate documents to a document stream. - # - # Example: - # - # Psych.dump_stream("foo\n ", {}) # => "--- ! \"foo\\n \"\n--- {}\n" - def self.dump_stream *objects - visitor = Psych::Visitors::YAMLTree.create({}) - objects.each do |o| - visitor << o - end - visitor.tree.yaml - end - - ### - # Dump Ruby +object+ to a JSON string. - def self.to_json object - visitor = Psych::Visitors::JSONTree.create - visitor << object - visitor.tree.yaml - end - - ### - # Load multiple documents given in +yaml+. Returns the parsed documents - # as a list. If a block is given, each document will be converted to Ruby - # and passed to the block during parsing - # - # Example: - # - # Psych.load_stream("--- foo\n...\n--- bar\n...") # => ['foo', 'bar'] - # - # list = [] - # Psych.load_stream("--- foo\n...\n--- bar\n...") do |ruby| - # list << ruby - # end - # list # => ['foo', 'bar'] - # - def self.load_stream yaml, filename = nil - if block_given? - parse_stream(yaml, filename) do |node| - yield node.to_ruby - end - else - parse_stream(yaml, filename).children.map { |child| child.to_ruby } - end - end - - ### - # Load the document contained in +filename+. Returns the yaml contained in - # +filename+ as a Ruby object - def self.load_file filename - File.open(filename, 'r:bom|utf-8') { |f| self.load f, filename } - end - - # :stopdoc: - @domain_types = {} - def self.add_domain_type domain, type_tag, &block - key = ['tag', domain, type_tag].join ':' - @domain_types[key] = [key, block] - @domain_types["tag:#{type_tag}"] = [key, block] - end - - def self.add_builtin_type type_tag, &block - domain = 'yaml.org,2002' - key = ['tag', domain, type_tag].join ':' - @domain_types[key] = [key, block] - end - - def self.remove_type type_tag - @domain_types.delete type_tag - end - - @load_tags = {} - @dump_tags = {} - def self.add_tag tag, klass - @load_tags[tag] = klass.name - @dump_tags[klass] = tag - end - - class << self - attr_accessor :load_tags - attr_accessor :dump_tags - attr_accessor :domain_types - end - # :startdoc: -end diff --git a/ruby_2_2/ext/psych/lib/psych/class_loader.rb b/ruby_2_2/ext/psych/lib/psych/class_loader.rb deleted file mode 100644 index 46c6b93627..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/class_loader.rb +++ /dev/null @@ -1,101 +0,0 @@ -require 'psych/omap' -require 'psych/set' - -module Psych - class ClassLoader # :nodoc: - BIG_DECIMAL = 'BigDecimal' - COMPLEX = 'Complex' - DATE = 'Date' - DATE_TIME = 'DateTime' - EXCEPTION = 'Exception' - OBJECT = 'Object' - PSYCH_OMAP = 'Psych::Omap' - PSYCH_SET = 'Psych::Set' - RANGE = 'Range' - RATIONAL = 'Rational' - REGEXP = 'Regexp' - STRUCT = 'Struct' - SYMBOL = 'Symbol' - - def initialize - @cache = CACHE.dup - end - - def load klassname - return nil if !klassname || klassname.empty? - - find klassname - end - - def symbolize sym - symbol - sym.to_sym - end - - constants.each do |const| - konst = const_get const - define_method(const.to_s.downcase) do - load konst - end - end - - private - - def find klassname - @cache[klassname] ||= resolve(klassname) - end - - def resolve klassname - name = klassname - retried = false - - begin - path2class(name) - rescue ArgumentError, NameError => ex - unless retried - name = "Struct::#{name}" - retried = ex - retry - end - raise retried - end - end - - CACHE = Hash[constants.map { |const| - val = const_get const - begin - [val, ::Object.const_get(val)] - rescue - nil - end - }.compact] - - class Restricted < ClassLoader - def initialize classes, symbols - @classes = classes - @symbols = symbols - super() - end - - def symbolize sym - return super if @symbols.empty? - - if @symbols.include? sym - super - else - raise DisallowedClass, 'Symbol' - end - end - - private - - def find klassname - if @classes.include? klassname - super - else - raise DisallowedClass, klassname - end - end - end - end -end diff --git a/ruby_2_2/ext/psych/lib/psych/coder.rb b/ruby_2_2/ext/psych/lib/psych/coder.rb deleted file mode 100644 index 2b830d2b21..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/coder.rb +++ /dev/null @@ -1,94 +0,0 @@ -module Psych - ### - # If an object defines +encode_with+, then an instance of Psych::Coder will - # be passed to the method when the object is being serialized. The Coder - # automatically assumes a Psych::Nodes::Mapping is being emitted. Other - # objects like Sequence and Scalar may be emitted if +seq=+ or +scalar=+ are - # called, respectively. - class Coder - attr_accessor :tag, :style, :implicit, :object - attr_reader :type, :seq - - def initialize tag - @map = {} - @seq = [] - @implicit = false - @type = :map - @tag = tag - @style = Psych::Nodes::Mapping::BLOCK - @scalar = nil - @object = nil - end - - def scalar *args - if args.length > 0 - warn "#{caller[0]}: Coder#scalar(a,b,c) is deprecated" if $VERBOSE - @tag, @scalar, _ = args - @type = :scalar - end - @scalar - end - - # Emit a map. The coder will be yielded to the block. - def map tag = @tag, style = @style - @tag = tag - @style = style - yield self if block_given? - @map - end - - # Emit a scalar with +value+ and +tag+ - def represent_scalar tag, value - self.tag = tag - self.scalar = value - end - - # Emit a sequence with +list+ and +tag+ - def represent_seq tag, list - @tag = tag - self.seq = list - end - - # Emit a sequence with +map+ and +tag+ - def represent_map tag, map - @tag = tag - self.map = map - end - - # Emit an arbitrary object +obj+ and +tag+ - def represent_object tag, obj - @tag = tag - @type = :object - @object = obj - end - - # Emit a scalar with +value+ - def scalar= value - @type = :scalar - @scalar = value - end - - # Emit a map with +value+ - def map= map - @type = :map - @map = map - end - - def []= k, v - @type = :map - @map[k] = v - end - alias :add :[]= - - def [] k - @type = :map - @map[k] - end - - # Emit a sequence of +list+ - def seq= list - @type = :seq - @seq = list - end - end -end diff --git a/ruby_2_2/ext/psych/lib/psych/core_ext.rb b/ruby_2_2/ext/psych/lib/psych/core_ext.rb deleted file mode 100644 index 9c8134da7e..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/core_ext.rb +++ /dev/null @@ -1,35 +0,0 @@ -class Object - def self.yaml_tag url - 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 = {} - 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) - require 'psych/y' -end diff --git a/ruby_2_2/ext/psych/lib/psych/deprecated.rb b/ruby_2_2/ext/psych/lib/psych/deprecated.rb deleted file mode 100644 index 8c310b3207..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/deprecated.rb +++ /dev/null @@ -1,85 +0,0 @@ -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/ruby_2_2/ext/psych/lib/psych/exception.rb b/ruby_2_2/ext/psych/lib/psych/exception.rb deleted file mode 100644 index ce9d2caf3f..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/exception.rb +++ /dev/null @@ -1,13 +0,0 @@ -module Psych - class Exception < RuntimeError - end - - class BadAlias < Exception - end - - class DisallowedClass < Exception - def initialize klass_name - super "Tried to load unspecified class: #{klass_name}" - end - end -end diff --git a/ruby_2_2/ext/psych/lib/psych/handler.rb b/ruby_2_2/ext/psych/lib/psych/handler.rb deleted file mode 100644 index c55afe745f..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/handler.rb +++ /dev/null @@ -1,249 +0,0 @@ -module Psych - ### - # Psych::Handler is an abstract base class that defines the events used - # when dealing with Psych::Parser. Clients who want to use Psych::Parser - # should implement a class that inherits from Psych::Handler and define - # events that they can handle. - # - # Psych::Handler defines all events that Psych::Parser can possibly send to - # event handlers. - # - # See Psych::Parser for more details - class Handler - ### - # Configuration options for dumping YAML. - class DumperOptions - attr_accessor :line_width, :indentation, :canonical - - def initialize - @line_width = 0 - @indentation = 2 - @canonical = false - end - end - - # Default dumping options - OPTIONS = DumperOptions.new - - # Events that a Handler should respond to. - EVENTS = [ :alias, - :empty, - :end_document, - :end_mapping, - :end_sequence, - :end_stream, - :scalar, - :start_document, - :start_mapping, - :start_sequence, - :start_stream ] - - ### - # Called with +encoding+ when the YAML stream starts. This method is - # called once per stream. A stream may contain multiple documents. - # - # See the constants in Psych::Parser for the possible values of +encoding+. - def start_stream encoding - end - - ### - # Called when the document starts with the declared +version+, - # +tag_directives+, if the document is +implicit+. - # - # +version+ will be an array of integers indicating the YAML version being - # dealt with, +tag_directives+ is a list of tuples indicating the prefix - # and suffix of each tag, and +implicit+ is a boolean indicating whether - # the document is started implicitly. - # - # === Example - # - # Given the following YAML: - # - # %YAML 1.1 - # %TAG ! tag:tenderlovemaking.com,2009: - # --- !squee - # - # The parameters for start_document must be this: - # - # version # => [1, 1] - # tag_directives # => [["!", "tag:tenderlovemaking.com,2009:"]] - # implicit # => false - def start_document version, tag_directives, implicit - end - - ### - # Called with the document ends. +implicit+ is a boolean value indicating - # whether or not the document has an implicit ending. - # - # === Example - # - # Given the following YAML: - # - # --- - # hello world - # - # +implicit+ will be true. Given this YAML: - # - # --- - # hello world - # ... - # - # +implicit+ will be false. - def end_document implicit - end - - ### - # Called when an alias is found to +anchor+. +anchor+ will be the name - # of the anchor found. - # - # === Example - # - # Here we have an example of an array that references itself in YAML: - # - # --- &ponies - # - first element - # - *ponies - # - # &ponies is the achor, *ponies is the alias. In this case, alias is - # called with "ponies". - def alias anchor - end - - ### - # Called when a scalar +value+ is found. The scalar may have an - # +anchor+, a +tag+, be implicitly +plain+ or implicitly +quoted+ - # - # +value+ is the string value of the scalar - # +anchor+ is an associated anchor or nil - # +tag+ is an associated tag or nil - # +plain+ is a boolean value - # +quoted+ is a boolean value - # +style+ is an integer idicating the string style - # - # See the constants in Psych::Nodes::Scalar for the possible values of - # +style+ - # - # === Example - # - # Here is a YAML document that exercises most of the possible ways this - # method can be called: - # - # --- - # - !str "foo" - # - &anchor fun - # - many - # lines - # - | - # many - # newlines - # - # The above YAML document contains a list with four strings. Here are - # the parameters sent to this method in the same order: - # - # # value anchor tag plain quoted style - # ["foo", nil, "!str", false, false, 3 ] - # ["fun", "anchor", nil, true, false, 1 ] - # ["many lines", nil, nil, true, false, 1 ] - # ["many\nnewlines\n", nil, nil, false, true, 4 ] - # - def scalar value, anchor, tag, plain, quoted, style - end - - ### - # Called when a sequence is started. - # - # +anchor+ is the anchor associated with the sequence or nil. - # +tag+ is the tag associated with the sequence or nil. - # +implicit+ a boolean indicating whether or not the sequence was implicitly - # started. - # +style+ is an integer indicating the list style. - # - # See the constants in Psych::Nodes::Sequence for the possible values of - # +style+. - # - # === Example - # - # Here is a YAML document that exercises most of the possible ways this - # method can be called: - # - # --- - # - !!seq [ - # a - # ] - # - &pewpew - # - b - # - # The above YAML document consists of three lists, an outer list that - # contains two inner lists. Here is a matrix of the parameters sent - # to represent these lists: - # - # # anchor tag implicit style - # [nil, nil, true, 1 ] - # [nil, "tag:yaml.org,2002:seq", false, 2 ] - # ["pewpew", nil, true, 1 ] - - def start_sequence anchor, tag, implicit, style - end - - ### - # Called when a sequence ends. - def end_sequence - end - - ### - # Called when a map starts. - # - # +anchor+ is the anchor associated with the map or +nil+. - # +tag+ is the tag associated with the map or +nil+. - # +implicit+ is a boolean indicating whether or not the map was implicitly - # started. - # +style+ is an integer indicating the mapping style. - # - # See the constants in Psych::Nodes::Mapping for the possible values of - # +style+. - # - # === Example - # - # Here is a YAML document that exercises most of the possible ways this - # method can be called: - # - # --- - # k: !!map { hello: world } - # v: &pewpew - # hello: world - # - # The above YAML document consists of three maps, an outer map that contains - # two inner maps. Below is a matrix of the parameters sent in order to - # represent these three maps: - # - # # anchor tag implicit style - # [nil, nil, true, 1 ] - # [nil, "tag:yaml.org,2002:map", false, 2 ] - # ["pewpew", nil, true, 1 ] - - def start_mapping anchor, tag, implicit, style - end - - ### - # Called when a map ends - def end_mapping - end - - ### - # Called when an empty event happens. (Which, as far as I can tell, is - # never). - def empty - end - - ### - # Called when the YAML stream ends - def end_stream - end - - ### - # Is this handler a streaming handler? - def streaming? - false - end - end -end diff --git a/ruby_2_2/ext/psych/lib/psych/handlers/document_stream.rb b/ruby_2_2/ext/psych/lib/psych/handlers/document_stream.rb deleted file mode 100644 index e429993c1c..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/handlers/document_stream.rb +++ /dev/null @@ -1,22 +0,0 @@ -require 'psych/tree_builder' - -module Psych - module Handlers - class DocumentStream < Psych::TreeBuilder # :nodoc: - def initialize &block - super - @block = block - end - - def start_document version, tag_directives, implicit - n = Nodes::Document.new version, tag_directives, implicit - push n - end - - def end_document implicit_end = !streaming? - @last.implicit_end = implicit_end - @block.call pop - end - end - end -end diff --git a/ruby_2_2/ext/psych/lib/psych/handlers/recorder.rb b/ruby_2_2/ext/psych/lib/psych/handlers/recorder.rb deleted file mode 100644 index 4eae62e5f9..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/handlers/recorder.rb +++ /dev/null @@ -1,39 +0,0 @@ -require 'psych/handler' - -module Psych - module Handlers - ### - # This handler will capture an event and record the event. Recorder events - # are available vial Psych::Handlers::Recorder#events. - # - # For example: - # - # recorder = Psych::Handlers::Recorder.new - # parser = Psych::Parser.new recorder - # parser.parse '--- foo' - # - # recorder.events # => [list of events] - # - # # Replay the events - # - # emitter = Psych::Emitter.new $stdout - # recorder.events.each do |m, args| - # emitter.send m, *args - # end - - class Recorder < Psych::Handler - attr_reader :events - - def initialize - @events = [] - super - end - - EVENTS.each do |event| - define_method event do |*args| - @events << [event, args] - end - end - end - end -end diff --git a/ruby_2_2/ext/psych/lib/psych/json/ruby_events.rb b/ruby_2_2/ext/psych/lib/psych/json/ruby_events.rb deleted file mode 100644 index 6b73249c06..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/json/ruby_events.rb +++ /dev/null @@ -1,19 +0,0 @@ -module Psych - module JSON - module RubyEvents # :nodoc: - def visit_Time o - formatted = format_time o - @emitter.scalar formatted, nil, nil, false, true, Nodes::Scalar::DOUBLE_QUOTED - end - - def visit_DateTime o - visit_Time o.to_time - end - - def visit_String o - @emitter.scalar o.to_s, nil, nil, false, true, Nodes::Scalar::DOUBLE_QUOTED - end - alias :visit_Symbol :visit_String - end - end -end diff --git a/ruby_2_2/ext/psych/lib/psych/json/stream.rb b/ruby_2_2/ext/psych/lib/psych/json/stream.rb deleted file mode 100644 index fe2a6e9116..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/json/stream.rb +++ /dev/null @@ -1,16 +0,0 @@ -require 'psych/json/ruby_events' -require 'psych/json/yaml_events' - -module Psych - module JSON - class Stream < Psych::Visitors::JSONTree - include Psych::JSON::RubyEvents - include Psych::Streaming - extend Psych::Streaming::ClassMethods - - class Emitter < Psych::Stream::Emitter # :nodoc: - include Psych::JSON::YAMLEvents - end - end - end -end diff --git a/ruby_2_2/ext/psych/lib/psych/json/tree_builder.rb b/ruby_2_2/ext/psych/lib/psych/json/tree_builder.rb deleted file mode 100644 index b799c93f58..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/json/tree_builder.rb +++ /dev/null @@ -1,12 +0,0 @@ -require 'psych/json/yaml_events' - -module Psych - module JSON - ### - # Psych::JSON::TreeBuilder is an event based AST builder. Events are sent - # to an instance of Psych::JSON::TreeBuilder and a JSON AST is constructed. - class TreeBuilder < Psych::TreeBuilder - include Psych::JSON::YAMLEvents - end - end -end diff --git a/ruby_2_2/ext/psych/lib/psych/json/yaml_events.rb b/ruby_2_2/ext/psych/lib/psych/json/yaml_events.rb deleted file mode 100644 index d054d9b458..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/json/yaml_events.rb +++ /dev/null @@ -1,29 +0,0 @@ -module Psych - module JSON - module YAMLEvents # :nodoc: - def start_document version, tag_directives, implicit - super(version, tag_directives, !streaming?) - end - - def end_document implicit_end = !streaming? - super(implicit_end) - end - - def start_mapping anchor, tag, implicit, style - super(anchor, nil, true, Nodes::Mapping::FLOW) - end - - def start_sequence anchor, tag, implicit, style - super(anchor, nil, true, Nodes::Sequence::FLOW) - end - - def scalar value, anchor, tag, plain, quoted, style - if "tag:yaml.org,2002:null" == tag - super('null', nil, nil, true, false, Nodes::Scalar::PLAIN) - else - super - end - end - end - end -end diff --git a/ruby_2_2/ext/psych/lib/psych/nodes.rb b/ruby_2_2/ext/psych/lib/psych/nodes.rb deleted file mode 100644 index f3b33fe975..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/nodes.rb +++ /dev/null @@ -1,77 +0,0 @@ -require 'psych/nodes/node' -require 'psych/nodes/stream' -require 'psych/nodes/document' -require 'psych/nodes/sequence' -require 'psych/nodes/scalar' -require 'psych/nodes/mapping' -require 'psych/nodes/alias' - -module Psych - ### - # = Overview - # - # When using Psych.load to deserialize a YAML document, the document is - # translated to an intermediary AST. That intermediary AST is then - # translated in to a Ruby object graph. - # - # In the opposite direction, when using Psych.dump, the Ruby object graph is - # translated to an intermediary AST which is then converted to a YAML - # document. - # - # Psych::Nodes contains all of the classes that make up the nodes of a YAML - # AST. You can manually build an AST and use one of the visitors (see - # Psych::Visitors) to convert that AST to either a YAML document or to a - # Ruby object graph. - # - # Here is an example of building an AST that represents a list with one - # scalar: - # - # # Create our nodes - # stream = Psych::Nodes::Stream.new - # doc = Psych::Nodes::Document.new - # seq = Psych::Nodes::Sequence.new - # scalar = Psych::Nodes::Scalar.new('foo') - # - # # Build up our tree - # stream.children << doc - # doc.children << seq - # seq.children << scalar - # - # The stream is the root of the tree. We can then convert the tree to YAML: - # - # stream.to_yaml => "---\n- foo\n" - # - # Or convert it to Ruby: - # - # stream.to_ruby => [["foo"]] - # - # == YAML AST Requirements - # - # A valid YAML AST *must* have one Psych::Nodes::Stream at the root. A - # Psych::Nodes::Stream node must have 1 or more Psych::Nodes::Document nodes - # as children. - # - # Psych::Nodes::Document nodes must have one and *only* one child. That child - # may be one of: - # - # * Psych::Nodes::Sequence - # * Psych::Nodes::Mapping - # * Psych::Nodes::Scalar - # - # Psych::Nodes::Sequence and Psych::Nodes::Mapping nodes may have many - # children, but Psych::Nodes::Mapping nodes should have an even number of - # children. - # - # All of these are valid children for Psych::Nodes::Sequence and - # Psych::Nodes::Mapping nodes: - # - # * Psych::Nodes::Sequence - # * Psych::Nodes::Mapping - # * Psych::Nodes::Scalar - # * Psych::Nodes::Alias - # - # Psych::Nodes::Scalar and Psych::Nodes::Alias are both terminal nodes and - # should not have any children. - module Nodes - end -end diff --git a/ruby_2_2/ext/psych/lib/psych/nodes/alias.rb b/ruby_2_2/ext/psych/lib/psych/nodes/alias.rb deleted file mode 100644 index 5bd4df13d1..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/nodes/alias.rb +++ /dev/null @@ -1,18 +0,0 @@ -module Psych - module Nodes - ### - # This class represents a {YAML Alias}[http://yaml.org/spec/1.1/#alias]. - # It points to an +anchor+. - # - # A Psych::Nodes::Alias is a terminal node and may have no children. - class Alias < Psych::Nodes::Node - # The anchor this alias links to - attr_accessor :anchor - - # Create a new Alias that points to an +anchor+ - def initialize anchor - @anchor = anchor - end - end - end -end diff --git a/ruby_2_2/ext/psych/lib/psych/nodes/document.rb b/ruby_2_2/ext/psych/lib/psych/nodes/document.rb deleted file mode 100644 index 32014d60dc..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/nodes/document.rb +++ /dev/null @@ -1,60 +0,0 @@ -module Psych - module Nodes - ### - # This represents a YAML Document. This node must be a child of - # Psych::Nodes::Stream. A Psych::Nodes::Document must have one child, - # and that child may be one of the following: - # - # * Psych::Nodes::Sequence - # * Psych::Nodes::Mapping - # * Psych::Nodes::Scalar - class Document < Psych::Nodes::Node - # The version of the YAML document - attr_accessor :version - - # A list of tag directives for this document - attr_accessor :tag_directives - - # Was this document implicitly created? - attr_accessor :implicit - - # Is the end of the document implicit? - attr_accessor :implicit_end - - ### - # Create a new Psych::Nodes::Document object. - # - # +version+ is a list indicating the YAML version. - # +tags_directives+ is a list of tag directive declarations - # +implicit+ is a flag indicating whether the document will be implicitly - # started. - # - # == Example: - # This creates a YAML document object that represents a YAML 1.1 document - # with one tag directive, and has an implicit start: - # - # Psych::Nodes::Document.new( - # [1,1], - # [["!", "tag:tenderlovemaking.com,2009:"]], - # true - # ) - # - # == See Also - # See also Psych::Handler#start_document - def initialize version = [], tag_directives = [], implicit = false - super() - @version = version - @tag_directives = tag_directives - @implicit = implicit - @implicit_end = true - end - - ### - # Returns the root node. A Document may only have one root node: - # http://yaml.org/spec/1.1/#id898031 - def root - children.first - end - end - end -end diff --git a/ruby_2_2/ext/psych/lib/psych/nodes/mapping.rb b/ruby_2_2/ext/psych/lib/psych/nodes/mapping.rb deleted file mode 100644 index 5ba95ce4b6..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/nodes/mapping.rb +++ /dev/null @@ -1,56 +0,0 @@ -module Psych - module Nodes - ### - # This class represents a {YAML Mapping}[http://yaml.org/spec/1.1/#mapping]. - # - # A Psych::Nodes::Mapping node may have 0 or more children, but must have - # an even number of children. Here are the valid children a - # Psych::Nodes::Mapping node may have: - # - # * Psych::Nodes::Sequence - # * Psych::Nodes::Mapping - # * Psych::Nodes::Scalar - # * Psych::Nodes::Alias - class Mapping < Psych::Nodes::Node - # Any Map Style - ANY = 0 - - # Block Map Style - BLOCK = 1 - - # Flow Map Style - FLOW = 2 - - # The optional anchor for this mapping - attr_accessor :anchor - - # The optional tag for this mapping - attr_accessor :tag - - # Is this an implicit mapping? - attr_accessor :implicit - - # The style of this mapping - attr_accessor :style - - ### - # Create a new Psych::Nodes::Mapping object. - # - # +anchor+ is the anchor associated with the map or +nil+. - # +tag+ is the tag associated with the map or +nil+. - # +implicit+ is a boolean indicating whether or not the map was implicitly - # started. - # +style+ is an integer indicating the mapping style. - # - # == See Also - # See also Psych::Handler#start_mapping - def initialize anchor = nil, tag = nil, implicit = true, style = BLOCK - super() - @anchor = anchor - @tag = tag - @implicit = implicit - @style = style - end - end - end -end diff --git a/ruby_2_2/ext/psych/lib/psych/nodes/node.rb b/ruby_2_2/ext/psych/lib/psych/nodes/node.rb deleted file mode 100644 index 83233a61fd..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/nodes/node.rb +++ /dev/null @@ -1,55 +0,0 @@ -require 'stringio' -require 'psych/class_loader' -require 'psych/scalar_scanner' - -module Psych - module Nodes - ### - # The base class for any Node in a YAML parse tree. This class should - # never be instantiated. - class Node - include Enumerable - - # The children of this node - attr_reader :children - - # An associated tag - attr_reader :tag - - # Create a new Psych::Nodes::Node - def initialize - @children = [] - end - - ### - # Iterate over each node in the tree. Yields each node to +block+ depth - # first. - def each &block - return enum_for :each unless block_given? - Visitors::DepthFirst.new(block).accept self - end - - ### - # Convert this node to Ruby. - # - # See also Psych::Visitors::ToRuby - def to_ruby - Visitors::ToRuby.create.accept(self) - end - alias :transform :to_ruby - - ### - # Convert this node to YAML. - # - # See also Psych::Visitors::Emitter - def yaml io = nil, options = {} - real_io = io || StringIO.new(''.encode('utf-8')) - - Visitors::Emitter.new(real_io, options).accept self - return real_io.string unless io - io - end - alias :to_yaml :yaml - end - end -end diff --git a/ruby_2_2/ext/psych/lib/psych/nodes/scalar.rb b/ruby_2_2/ext/psych/lib/psych/nodes/scalar.rb deleted file mode 100644 index 1b1b25b98a..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/nodes/scalar.rb +++ /dev/null @@ -1,67 +0,0 @@ -module Psych - module Nodes - ### - # This class represents a {YAML Scalar}[http://yaml.org/spec/1.1/#id858081]. - # - # This node type is a terminal node and should not have any children. - class Scalar < Psych::Nodes::Node - # Any style scalar, the emitter chooses - ANY = 0 - - # Plain scalar style - PLAIN = 1 - - # Single quoted style - SINGLE_QUOTED = 2 - - # Double quoted style - DOUBLE_QUOTED = 3 - - # Literal style - LITERAL = 4 - - # Folded style - FOLDED = 5 - - # The scalar value - attr_accessor :value - - # The anchor value (if there is one) - attr_accessor :anchor - - # The tag value (if there is one) - attr_accessor :tag - - # Is this a plain scalar? - attr_accessor :plain - - # Is this scalar quoted? - attr_accessor :quoted - - # The style of this scalar - attr_accessor :style - - ### - # Create a new Psych::Nodes::Scalar object. - # - # +value+ is the string value of the scalar - # +anchor+ is an associated anchor or nil - # +tag+ is an associated tag or nil - # +plain+ is a boolean value - # +quoted+ is a boolean value - # +style+ is an integer idicating the string style - # - # == See Also - # - # See also Psych::Handler#scalar - def initialize value, anchor = nil, tag = nil, plain = true, quoted = false, style = ANY - @value = value - @anchor = anchor - @tag = tag - @plain = plain - @quoted = quoted - @style = style - end - end - end -end diff --git a/ruby_2_2/ext/psych/lib/psych/nodes/sequence.rb b/ruby_2_2/ext/psych/lib/psych/nodes/sequence.rb deleted file mode 100644 index 7e907fe2c8..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/nodes/sequence.rb +++ /dev/null @@ -1,81 +0,0 @@ -module Psych - module Nodes - ### - # This class represents a - # {YAML sequence}[http://yaml.org/spec/1.1/#sequence/syntax]. - # - # A YAML sequence is basically a list, and looks like this: - # - # %YAML 1.1 - # --- - # - I am - # - a Sequence - # - # A YAML sequence may have an anchor like this: - # - # %YAML 1.1 - # --- - # &A [ - # "This sequence", - # "has an anchor" - # ] - # - # A YAML sequence may also have a tag like this: - # - # %YAML 1.1 - # --- - # !!seq [ - # "This sequence", - # "has a tag" - # ] - # - # This class represents a sequence in a YAML document. A - # Psych::Nodes::Sequence node may have 0 or more children. Valid children - # for this node are: - # - # * Psych::Nodes::Sequence - # * Psych::Nodes::Mapping - # * Psych::Nodes::Scalar - # * Psych::Nodes::Alias - class Sequence < Psych::Nodes::Node - # Any Styles, emitter chooses - ANY = 0 - - # Block style sequence - BLOCK = 1 - - # Flow style sequence - FLOW = 2 - - # The anchor for this sequence (if any) - attr_accessor :anchor - - # The tag name for this sequence (if any) - attr_accessor :tag - - # Is this sequence started implicitly? - attr_accessor :implicit - - # The sequence style used - attr_accessor :style - - ### - # Create a new object representing a YAML sequence. - # - # +anchor+ is the anchor associated with the sequence or nil. - # +tag+ is the tag associated with the sequence or nil. - # +implicit+ a boolean indicating whether or not the sequence was - # implicitly started. - # +style+ is an integer indicating the list style. - # - # See Psych::Handler#start_sequence - def initialize anchor = nil, tag = nil, implicit = true, style = BLOCK - super() - @anchor = anchor - @tag = tag - @implicit = implicit - @style = style - end - end - end -end diff --git a/ruby_2_2/ext/psych/lib/psych/nodes/stream.rb b/ruby_2_2/ext/psych/lib/psych/nodes/stream.rb deleted file mode 100644 index 7cf5e033ec..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/nodes/stream.rb +++ /dev/null @@ -1,37 +0,0 @@ -module Psych - module Nodes - ### - # Represents a YAML stream. This is the root node for any YAML parse - # tree. This node must have one or more child nodes. The only valid - # child node for a Psych::Nodes::Stream node is Psych::Nodes::Document. - class Stream < Psych::Nodes::Node - - # Encodings supported by Psych (and libyaml) - - # Any encoding - ANY = Psych::Parser::ANY - - # UTF-8 encoding - UTF8 = Psych::Parser::UTF8 - - # UTF-16LE encoding - UTF16LE = Psych::Parser::UTF16LE - - # UTF-16BE encoding - UTF16BE = Psych::Parser::UTF16BE - - # The encoding used for this stream - attr_accessor :encoding - - ### - # Create a new Psych::Nodes::Stream node with an +encoding+ that - # defaults to Psych::Nodes::Stream::UTF8. - # - # See also Psych::Handler#start_stream - def initialize encoding = UTF8 - super() - @encoding = encoding - end - end - end -end diff --git a/ruby_2_2/ext/psych/lib/psych/omap.rb b/ruby_2_2/ext/psych/lib/psych/omap.rb deleted file mode 100644 index 6286270616..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/omap.rb +++ /dev/null @@ -1,4 +0,0 @@ -module Psych - class Omap < ::Hash - end -end diff --git a/ruby_2_2/ext/psych/lib/psych/parser.rb b/ruby_2_2/ext/psych/lib/psych/parser.rb deleted file mode 100644 index 84085f1fb0..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/parser.rb +++ /dev/null @@ -1,51 +0,0 @@ -module Psych - ### - # YAML event parser class. This class parses a YAML document and calls - # events on the handler that is passed to the constructor. The events can - # be used for things such as constructing a YAML AST or deserializing YAML - # documents. It can even be fed back to Psych::Emitter to emit the same - # document that was parsed. - # - # See Psych::Handler for documentation on the events that Psych::Parser emits. - # - # Here is an example that prints out ever scalar found in a YAML document: - # - # # Handler for detecting scalar values - # class ScalarHandler < Psych::Handler - # def scalar value, anchor, tag, plain, quoted, style - # puts value - # end - # end - # - # parser = Psych::Parser.new(ScalarHandler.new) - # parser.parse(yaml_document) - # - # Here is an example that feeds the parser back in to Psych::Emitter. The - # YAML document is read from STDIN and written back out to STDERR: - # - # parser = Psych::Parser.new(Psych::Emitter.new($stderr)) - # parser.parse($stdin) - # - # Psych uses Psych::Parser in combination with Psych::TreeBuilder to - # construct an AST of the parsed YAML document. - - class Parser - class Mark < Struct.new(:index, :line, :column) - end - - # The handler on which events will be called - attr_accessor :handler - - # Set the encoding for this parser to +encoding+ - attr_writer :external_encoding - - ### - # Creates a new Psych::Parser instance with +handler+. YAML events will - # be called on +handler+. See Psych::Parser for more details. - - def initialize handler = Handler.new - @handler = handler - @external_encoding = ANY - end - end -end diff --git a/ruby_2_2/ext/psych/lib/psych/scalar_scanner.rb b/ruby_2_2/ext/psych/lib/psych/scalar_scanner.rb deleted file mode 100644 index 93007902a7..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/scalar_scanner.rb +++ /dev/null @@ -1,149 +0,0 @@ -require 'strscan' - -module Psych - ### - # Scan scalars for built in types - class ScalarScanner - # Taken from http://yaml.org/type/timestamp.html - TIME = /^-?\d{4}-\d{1,2}-\d{1,2}(?:[Tt]|\s+)\d{1,2}:\d\d:\d\d(?:\.\d*)?(?:\s*(?:Z|[-+]\d{1,2}:?(?:\d\d)?))?$/ - - # 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))$/x - - # Taken from http://yaml.org/type/int.html - INTEGER = /^(?:[-+]?0b[0-1_]+ (?# base 2) - |[-+]?0[0-7_]+ (?# base 8) - |[-+]?(?:0|[1-9][0-9_]*) (?# base 10) - |[-+]?0x[0-9a-fA-F_]+ (?# base 16))$/x - - attr_reader :class_loader - - # Create a new scanner - def initialize class_loader - @string_cache = {} - @symbol_cache = {} - @class_loader = class_loader - end - - # Tokenize +string+ returning the Ruby object - def tokenize string - return nil if string.empty? - return string if @string_cache.key?(string) - return @symbol_cache[string] if @symbol_cache.key?(string) - - case string - # Check for a String type, being careful not to get caught by hash keys, hex values, and - # special floats (e.g., -.inf). - when /^[^\d\.:-]?[A-Za-z_\s!@#\$%\^&\*\(\)\{\}\<\>\|\/\\~;=]+/, /\n/ - if string.length > 5 - @string_cache[string] = true - return string - end - - case string - when /^[^ytonf~]/i - @string_cache[string] = true - string - when '~', /^null$/i - nil - when /^(yes|true|on)$/i - true - when /^(no|false|off)$/i - false - else - @string_cache[string] = true - string - end - when TIME - begin - parse_time string - rescue ArgumentError - string - end - when /^\d{4}-(?:1[012]|0\d|\d)-(?:[12]\d|3[01]|0\d|\d)$/ - require 'date' - begin - class_loader.date.strptime(string, '%Y-%m-%d') - rescue ArgumentError - string - end - when /^\.inf$/i - Float::INFINITY - when /^-\.inf$/i - -Float::INFINITY - when /^\.nan$/i - Float::NAN - when /^:./ - if string =~ /^:(["'])(.*)\1/ - @symbol_cache[string] = class_loader.symbolize($2.sub(/^:/, '')) - else - @symbol_cache[string] = class_loader.symbolize(string.sub(/^:/, '')) - end - when /^[-+]?[0-9][0-9_]*(:[0-5]?[0-9])+$/ - 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_]*$/ - i = 0 - string.split(':').each_with_index do |n,e| - i += (n.to_f * 60 ** (e - 2).abs) - end - i - when FLOAT - if string =~ /\A[-+]?\.\Z/ - @string_cache[string] = true - string - else - Float(string.gsub(/[,_]|\.$/, '')) - end - else - int = parse_int string.gsub(/[,_]/, '') - return int if int - - @string_cache[string] = true - string - end - end - - ### - # Parse and return an int from +string+ - def parse_int string - return unless INTEGER === string - Integer(string) - end - - ### - # Parse and return a Time from +string+ - def parse_time string - klass = class_loader.load 'Time' - - date, time = *(string.split(/[ tT]/, 2)) - (yy, m, dd) = date.match(/^(-?\d{4})-(\d{1,2})-(\d{1,2})/).captures.map { |x| x.to_i } - md = time.match(/(\d+:\d+:\d+)(?:\.(\d*))?\s*(Z|[-+]\d+(:\d\d)?)?/) - - (hh, mm, ss) = md[1].split(':').map { |x| x.to_i } - us = (md[2] ? Rational("0.#{md[2]}") : 0) * 1000000 - - time = klass.utc(yy, m, dd, hh, mm, ss, us) - - return time if 'Z' == md[3] - return klass.at(time.to_i, us) unless md[3] - - tz = md[3].match(/^([+\-]?\d{1,2})\:?(\d{1,2})?$/)[1..-1].compact.map { |digit| Integer(digit, 10) } - offset = tz.first * 3600 - - if offset < 0 - offset -= ((tz[1] || 0) * 60) - else - offset += ((tz[1] || 0) * 60) - end - - klass.at((time - offset).to_i, us) - end - end -end diff --git a/ruby_2_2/ext/psych/lib/psych/set.rb b/ruby_2_2/ext/psych/lib/psych/set.rb deleted file mode 100644 index 6793a8ed1b..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/set.rb +++ /dev/null @@ -1,4 +0,0 @@ -module Psych - class Set < ::Hash - end -end diff --git a/ruby_2_2/ext/psych/lib/psych/stream.rb b/ruby_2_2/ext/psych/lib/psych/stream.rb deleted file mode 100644 index 88c4c4cb4e..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/stream.rb +++ /dev/null @@ -1,37 +0,0 @@ -module Psych - ### - # Psych::Stream is a streaming YAML emitter. It will not buffer your YAML, - # but send it straight to an IO. - # - # Here is an example use: - # - # stream = Psych::Stream.new($stdout) - # stream.start - # stream.push({:foo => 'bar'}) - # stream.finish - # - # YAML will be immediately emitted to $stdout with no buffering. - # - # Psych::Stream#start will take a block and ensure that Psych::Stream#finish - # is called, so you can do this form: - # - # stream = Psych::Stream.new($stdout) - # stream.start do |em| - # em.push(:foo => 'bar') - # end - # - class Stream < Psych::Visitors::YAMLTree - class Emitter < Psych::Emitter # :nodoc: - def end_document implicit_end = !streaming? - super - end - - def streaming? - true - end - end - - include Psych::Streaming - extend Psych::Streaming::ClassMethods - end -end diff --git a/ruby_2_2/ext/psych/lib/psych/streaming.rb b/ruby_2_2/ext/psych/lib/psych/streaming.rb deleted file mode 100644 index 9d94eb549f..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/streaming.rb +++ /dev/null @@ -1,27 +0,0 @@ -module Psych - module Streaming - module ClassMethods - ### - # Create a new streaming emitter. Emitter will print to +io+. See - # Psych::Stream for an example. - def new io - emitter = const_get(:Emitter).new(io) - class_loader = ClassLoader.new - ss = ScalarScanner.new class_loader - super(emitter, ss, {}) - end - end - - ### - # Start streaming using +encoding+ - def start encoding = Nodes::Stream::UTF8 - super.tap { yield self if block_given? } - ensure - finish if block_given? - end - - private - def register target, obj - end - end -end diff --git a/ruby_2_2/ext/psych/lib/psych/syntax_error.rb b/ruby_2_2/ext/psych/lib/psych/syntax_error.rb deleted file mode 100644 index e200ef0060..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/syntax_error.rb +++ /dev/null @@ -1,21 +0,0 @@ -require 'psych/exception' - -module Psych - class SyntaxError < Psych::Exception - attr_reader :file, :line, :column, :offset, :problem, :context - - def initialize file, line, col, offset, problem, context - err = [problem, context].compact.join ' ' - filename = file || '<unknown>' - message = "(%s): %s at line %d column %d" % [filename, err, line, col] - - @file = file - @line = line - @column = col - @offset = offset - @problem = problem - @context = context - super(message) - end - end -end diff --git a/ruby_2_2/ext/psych/lib/psych/tree_builder.rb b/ruby_2_2/ext/psych/lib/psych/tree_builder.rb deleted file mode 100644 index c8f344787c..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/tree_builder.rb +++ /dev/null @@ -1,96 +0,0 @@ -require 'psych/handler' - -module Psych - ### - # This class works in conjunction with Psych::Parser to build an in-memory - # parse tree that represents a YAML document. - # - # == Example - # - # parser = Psych::Parser.new Psych::TreeBuilder.new - # parser.parse('--- foo') - # tree = parser.handler.root - # - # See Psych::Handler for documentation on the event methods used in this - # class. - class TreeBuilder < Psych::Handler - # Returns the root node for the built tree - attr_reader :root - - # Create a new TreeBuilder instance - def initialize - @stack = [] - @last = nil - @root = nil - end - - %w{ - Sequence - Mapping - }.each do |node| - class_eval %{ - def start_#{node.downcase}(anchor, tag, implicit, style) - n = Nodes::#{node}.new(anchor, tag, implicit, style) - @last.children << n - push n - end - - def end_#{node.downcase} - pop - end - } - end - - ### - # Handles start_document events with +version+, +tag_directives+, - # and +implicit+ styling. - # - # See Psych::Handler#start_document - def start_document version, tag_directives, implicit - n = Nodes::Document.new version, tag_directives, implicit - @last.children << n - push n - end - - ### - # Handles end_document events with +version+, +tag_directives+, - # and +implicit+ styling. - # - # See Psych::Handler#start_document - def end_document implicit_end = !streaming? - @last.implicit_end = implicit_end - pop - end - - def start_stream encoding - @root = Nodes::Stream.new(encoding) - push @root - end - - def end_stream - pop - end - - def scalar value, anchor, tag, plain, quoted, style - s = Nodes::Scalar.new(value,anchor,tag,plain,quoted,style) - @last.children << s - s - end - - def alias anchor - @last.children << Nodes::Alias.new(anchor) - end - - private - def push value - @stack.push value - @last = value - end - - def pop - x = @stack.pop - @last = @stack.last - x - end - end -end diff --git a/ruby_2_2/ext/psych/lib/psych/visitors.rb b/ruby_2_2/ext/psych/lib/psych/visitors.rb deleted file mode 100644 index cc98b103f1..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/visitors.rb +++ /dev/null @@ -1,6 +0,0 @@ -require 'psych/visitors/visitor' -require 'psych/visitors/to_ruby' -require 'psych/visitors/emitter' -require 'psych/visitors/yaml_tree' -require 'psych/visitors/json_tree' -require 'psych/visitors/depth_first' diff --git a/ruby_2_2/ext/psych/lib/psych/visitors/depth_first.rb b/ruby_2_2/ext/psych/lib/psych/visitors/depth_first.rb deleted file mode 100644 index c6eb814ac0..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/visitors/depth_first.rb +++ /dev/null @@ -1,26 +0,0 @@ -module Psych - module Visitors - class DepthFirst < Psych::Visitors::Visitor - def initialize block - @block = block - end - - private - - def nary o - o.children.each { |x| visit x } - @block.call o - end - alias :visit_Psych_Nodes_Stream :nary - alias :visit_Psych_Nodes_Document :nary - alias :visit_Psych_Nodes_Sequence :nary - alias :visit_Psych_Nodes_Mapping :nary - - def terminal o - @block.call o - end - alias :visit_Psych_Nodes_Scalar :terminal - alias :visit_Psych_Nodes_Alias :terminal - end - end -end diff --git a/ruby_2_2/ext/psych/lib/psych/visitors/emitter.rb b/ruby_2_2/ext/psych/lib/psych/visitors/emitter.rb deleted file mode 100644 index c886e5092e..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/visitors/emitter.rb +++ /dev/null @@ -1,51 +0,0 @@ -module Psych - module Visitors - class Emitter < Psych::Visitors::Visitor - def initialize io, options = {} - opts = [:indentation, :canonical, :line_width].find_all { |opt| - options.key?(opt) - } - - if opts.empty? - @handler = Psych::Emitter.new io - else - du = Handler::DumperOptions.new - opts.each { |option| du.send :"#{option}=", options[option] } - @handler = Psych::Emitter.new io, du - end - end - - def visit_Psych_Nodes_Stream o - @handler.start_stream o.encoding - o.children.each { |c| accept c } - @handler.end_stream - end - - def visit_Psych_Nodes_Document o - @handler.start_document o.version, o.tag_directives, o.implicit - o.children.each { |c| accept c } - @handler.end_document o.implicit_end - end - - def visit_Psych_Nodes_Scalar o - @handler.scalar o.value, o.anchor, o.tag, o.plain, o.quoted, o.style - end - - def visit_Psych_Nodes_Sequence o - @handler.start_sequence o.anchor, o.tag, o.implicit, o.style - o.children.each { |c| accept c } - @handler.end_sequence - end - - def visit_Psych_Nodes_Mapping o - @handler.start_mapping o.anchor, o.tag, o.implicit, o.style - o.children.each { |c| accept c } - @handler.end_mapping - end - - def visit_Psych_Nodes_Alias o - @handler.alias o.anchor - end - end - end -end diff --git a/ruby_2_2/ext/psych/lib/psych/visitors/json_tree.rb b/ruby_2_2/ext/psych/lib/psych/visitors/json_tree.rb deleted file mode 100644 index 0127ac8aa8..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/visitors/json_tree.rb +++ /dev/null @@ -1,24 +0,0 @@ -require 'psych/json/ruby_events' - -module Psych - module Visitors - class JSONTree < YAMLTree - include Psych::JSON::RubyEvents - - def self.create options = {} - emitter = Psych::JSON::TreeBuilder.new - class_loader = ClassLoader.new - ss = ScalarScanner.new class_loader - new(emitter, ss, options) - end - - def accept target - if target.respond_to?(:encode_with) - dump_coder target - else - send(@dispatch_cache[target.class], target) - end - end - end - end -end diff --git a/ruby_2_2/ext/psych/lib/psych/visitors/to_ruby.rb b/ruby_2_2/ext/psych/lib/psych/visitors/to_ruby.rb deleted file mode 100644 index e696ebd4ff..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/visitors/to_ruby.rb +++ /dev/null @@ -1,389 +0,0 @@ -require 'psych/scalar_scanner' -require 'psych/class_loader' -require 'psych/exception' - -unless defined?(Regexp::NOENCODING) - Regexp::NOENCODING = 32 -end - -module Psych - module Visitors - ### - # This class walks a YAML AST, converting each node to Ruby - class ToRuby < Psych::Visitors::Visitor - def self.create - class_loader = ClassLoader.new - scanner = ScalarScanner.new class_loader - new(scanner, class_loader) - end - - attr_reader :class_loader - - def initialize ss, class_loader - super() - @st = {} - @ss = ss - @domain_types = Psych.domain_types - @class_loader = class_loader - end - - def accept target - result = super - return result if @domain_types.empty? || !target.tag - - key = target.tag.sub(/^[!\/]*/, '').sub(/(,\d+)\//, '\1:') - key = "tag:#{key}" unless key =~ /^(tag:|x-private)/ - - if @domain_types.key? key - value, block = @domain_types[key] - return block.call value, result - end - - result - end - - def deserialize o - if klass = resolve_class(Psych.load_tags[o.tag]) - instance = klass.allocate - - if instance.respond_to?(:init_with) - coder = Psych::Coder.new(o.tag) - coder.scalar = o.value - instance.init_with coder - end - - return instance - end - - return o.value if o.quoted - return @ss.tokenize(o.value) unless o.tag - - case o.tag - when '!binary', 'tag:yaml.org,2002:binary' - o.value.unpack('m').first - when /^!(?:str|ruby\/string)(?::(.*))?/, 'tag:yaml.org,2002:str' - klass = resolve_class($1) - if klass - klass.allocate.replace o.value - else - o.value - end - when '!ruby/object:BigDecimal' - require 'bigdecimal' - class_loader.big_decimal._load o.value - when "!ruby/object:DateTime" - class_loader.date_time - require 'date' - @ss.parse_time(o.value).to_datetime - when '!ruby/encoding' - ::Encoding.find o.value - when "!ruby/object:Complex" - class_loader.complex - Complex(o.value) - when "!ruby/object:Rational" - class_loader.rational - Rational(o.value) - when "!ruby/class", "!ruby/module" - resolve_class o.value - when "tag:yaml.org,2002:float", "!float" - Float(@ss.tokenize(o.value)) - when "!ruby/regexp" - klass = class_loader.regexp - o.value =~ /^\/(.*)\/([mixn]*)$/ - source = $1 - options = 0 - lang = nil - ($2 || '').split('').each do |option| - case option - when 'x' then options |= Regexp::EXTENDED - when 'i' then options |= Regexp::IGNORECASE - when 'm' then options |= Regexp::MULTILINE - when 'n' then options |= Regexp::NOENCODING - else lang = option - end - end - klass.new(*[source, options, lang].compact) - when "!ruby/range" - klass = class_loader.range - args = o.value.split(/([.]{2,3})/, 2).map { |s| - accept Nodes::Scalar.new(s) - } - args.push(args.delete_at(1) == '...') - klass.new(*args) - when /^!ruby\/sym(bol)?:?(.*)?$/ - class_loader.symbolize o.value - else - @ss.tokenize o.value - end - end - private :deserialize - - def visit_Psych_Nodes_Scalar o - register o, deserialize(o) - end - - def visit_Psych_Nodes_Sequence o - if klass = resolve_class(Psych.load_tags[o.tag]) - instance = klass.allocate - - if instance.respond_to?(:init_with) - coder = Psych::Coder.new(o.tag) - coder.seq = o.children.map { |c| accept c } - instance.init_with coder - end - - return instance - end - - case o.tag - when nil - register_empty(o) - when '!omap', 'tag:yaml.org,2002:omap' - map = register(o, Psych::Omap.new) - o.children.each { |a| - map[accept(a.children.first)] = accept a.children.last - } - map - when /^!(?:seq|ruby\/array):(.*)$/ - klass = resolve_class($1) - list = register(o, klass.allocate) - o.children.each { |c| list.push accept c } - list - else - register_empty(o) - end - end - - def visit_Psych_Nodes_Mapping o - if Psych.load_tags[o.tag] - return revive(resolve_class(Psych.load_tags[o.tag]), o) - end - return revive_hash(register(o, {}), o) unless o.tag - - case o.tag - when /^!ruby\/struct:?(.*)?$/ - klass = resolve_class($1) if $1 - - if klass - s = register(o, klass.allocate) - - members = {} - struct_members = s.members.map { |x| class_loader.symbolize x } - o.children.each_slice(2) do |k,v| - member = accept(k) - value = accept(v) - if struct_members.include?(class_loader.symbolize(member)) - s.send("#{member}=", value) - else - members[member.to_s.sub(/^@/, '')] = value - end - end - init_with(s, members, o) - else - klass = class_loader.struct - members = o.children.map { |c| accept c } - h = Hash[*members] - s = klass.new(*h.map { |k,v| - class_loader.symbolize k - }).new(*h.map { |k,v| v }) - register(o, s) - s - end - - when /^!ruby\/object:?(.*)?$/ - name = $1 || 'Object' - - if name == 'Complex' - class_loader.complex - h = Hash[*o.children.map { |c| accept c }] - register o, Complex(h['real'], h['image']) - elsif name == 'Rational' - class_loader.rational - h = Hash[*o.children.map { |c| accept c }] - register o, Rational(h['numerator'], h['denominator']) - elsif name == 'Hash' - revive_hash(register(o, {}), o) - else - obj = revive((resolve_class(name) || class_loader.object), o) - obj - end - - when /^!(?:str|ruby\/string)(?::(.*))?/, 'tag:yaml.org,2002:str' - klass = resolve_class($1) - members = {} - string = nil - - o.children.each_slice(2) do |k,v| - key = accept k - value = accept v - - if key == 'str' - if klass - string = klass.allocate.replace value - else - string = value - end - register(o, string) - else - members[key] = value - end - end - init_with(string, members.map { |k,v| [k.to_s.sub(/^@/, ''),v] }, o) - when /^!ruby\/array:(.*)$/ - klass = resolve_class($1) - list = register(o, klass.allocate) - - members = Hash[o.children.map { |c| accept c }.each_slice(2).to_a] - list.replace members['internal'] - - members['ivars'].each do |ivar, v| - list.instance_variable_set ivar, v - end - list - - when '!ruby/range' - klass = class_loader.range - h = Hash[*o.children.map { |c| accept c }] - register o, klass.new(h['begin'], h['end'], h['excl']) - - when /^!ruby\/exception:?(.*)?$/ - h = Hash[*o.children.map { |c| accept c }] - - e = build_exception((resolve_class($1) || class_loader.exception), - h.delete('message')) - init_with(e, h, o) - - when '!set', 'tag:yaml.org,2002:set' - set = class_loader.psych_set.new - @st[o.anchor] = set if o.anchor - o.children.each_slice(2) do |k,v| - set[accept(k)] = accept(v) - end - set - - when /^!map:(.*)$/, /^!ruby\/hash:(.*)$/ - revive_hash register(o, resolve_class($1).new), o - - when '!omap', 'tag:yaml.org,2002:omap' - map = register(o, class_loader.psych_omap.new) - o.children.each_slice(2) do |l,r| - map[accept(l)] = accept r - end - map - - when /^!ruby\/marshalable:(.*)$/ - name = $1 - klass = resolve_class(name) - obj = register(o, klass.allocate) - - if obj.respond_to?(:init_with) - init_with(obj, revive_hash({}, o), o) - elsif obj.respond_to?(:marshal_load) - marshal_data = o.children.map(&method(:accept)) - obj.marshal_load(marshal_data) - obj - else - raise ArgumentError, "Cannot deserialize #{name}" - end - - else - revive_hash(register(o, {}), o) - end - end - - def visit_Psych_Nodes_Document o - accept o.root - end - - def visit_Psych_Nodes_Stream o - o.children.map { |c| accept c } - end - - def visit_Psych_Nodes_Alias o - @st.fetch(o.anchor) { raise BadAlias, "Unknown alias: #{o.anchor}" } - end - - private - def register node, object - @st[node.anchor] = object if node.anchor - object - end - - def register_empty object - list = register(object, []) - object.children.each { |c| list.push accept c } - list - end - - def revive_hash hash, o - o.children.each_slice(2) { |k,v| - key = accept(k) - val = accept(v) - - if key == '<<' && k.tag != "tag:yaml.org,2002:str" - case v - when Nodes::Alias, Nodes::Mapping - begin - hash.merge! val - rescue TypeError - hash[key] = val - end - when Nodes::Sequence - begin - h = {} - val.reverse_each do |value| - h.merge! value - end - hash.merge! h - rescue TypeError - hash[key] = val - end - else - hash[key] = val - end - else - hash[key] = val - end - - } - hash - end - - def merge_key hash, key, val - end - - def revive klass, node - s = register(node, klass.allocate) - init_with(s, revive_hash({}, node), node) - end - - def init_with o, h, node - c = Psych::Coder.new(node.tag) - c.map = h - - 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 - o - end - - # Convert +klassname+ to a Class - def resolve_class klassname - class_loader.load klassname - end - end - - class NoAliasRuby < ToRuby - def visit_Psych_Nodes_Alias o - raise BadAlias, "Unknown alias: #{o.anchor}" - end - end - end -end diff --git a/ruby_2_2/ext/psych/lib/psych/visitors/visitor.rb b/ruby_2_2/ext/psych/lib/psych/visitors/visitor.rb deleted file mode 100644 index 4d7772f428..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/visitors/visitor.rb +++ /dev/null @@ -1,19 +0,0 @@ -module Psych - module Visitors - class Visitor - def accept target - visit target - end - - private - - DISPATCH = Hash.new do |hash, klass| - hash[klass] = "visit_#{klass.name.gsub('::', '_')}" - end - - def visit target - send DISPATCH[target.class], target - end - end - end -end diff --git a/ruby_2_2/ext/psych/lib/psych/visitors/yaml_tree.rb b/ruby_2_2/ext/psych/lib/psych/visitors/yaml_tree.rb deleted file mode 100644 index 989e1f0de5..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/visitors/yaml_tree.rb +++ /dev/null @@ -1,565 +0,0 @@ -require 'psych/tree_builder' -require 'psych/scalar_scanner' -require 'psych/class_loader' - -module Psych - module Visitors - ### - # YAMLTree builds a YAML ast given a Ruby object. For example: - # - # builder = Psych::Visitors::YAMLTree.new - # builder << { :foo => 'bar' } - # builder.tree # => #<Psych::Nodes::Stream .. } - # - class YAMLTree < Psych::Visitors::Visitor - class Registrar # :nodoc: - def initialize - @obj_to_id = {} - @obj_to_node = {} - @targets = [] - @counter = 0 - end - - def register target, node - @targets << target - @obj_to_node[target.object_id] = node - end - - def key? target - @obj_to_node.key? target.object_id - rescue NoMethodError - false - end - - def id_for target - @obj_to_id[target.object_id] ||= (@counter += 1) - end - - def node_for target - @obj_to_node[target.object_id] - end - end - - attr_reader :started, :finished - alias :finished? :finished - alias :started? :started - - def self.create options = {}, emitter = nil - emitter ||= TreeBuilder.new - class_loader = ClassLoader.new - ss = ScalarScanner.new class_loader - 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 - @finished = false - @emitter = emitter - @st = Registrar.new - @ss = ss - @options = options - @coders = [] - - @dispatch_cache = Hash.new do |h,klass| - method = "visit_#{(klass.name || '').split('::').join('_')}" - - method = respond_to?(method) ? method : h[klass.superclass] - - raise(TypeError, "Can't dump #{target.class}") unless method - - h[klass] = method - end - end - - def start encoding = Nodes::Stream::UTF8 - @emitter.start_stream(encoding).tap do - @started = true - end - end - - def finish - @emitter.end_stream.tap do - @finished = true - end - end - - def tree - finish unless finished? - @emitter.root - end - - def push object - start unless started? - version = [] - version = [1,1] if @options[:header] - - case @options[:version] - when Array - version = @options[:version] - when String - version = @options[:version].split('.').map { |x| x.to_i } - else - version = [1,1] - end if @options.key? :version - - @emitter.start_document version, [], false - accept object - @emitter.end_document !@emitter.streaming? - end - alias :<< :push - - def accept target - # return any aliases we find - if @st.key? target - oid = @st.id_for target - node = @st.node_for target - anchor = oid.to_s - node.anchor = anchor - 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 - send(@dispatch_cache[target.class], target) - end - end - - def visit_Psych_Omap o - seq = @emitter.start_sequence(nil, '!omap', false, Nodes::Sequence::BLOCK) - register(o, seq) - - o.each { |k,v| visit_Hash k => v } - @emitter.end_sequence - end - - def visit_Encoding o - tag = "!ruby/encoding" - @emitter.scalar o.name, nil, tag, false, false, Nodes::Scalar::ANY - end - - def visit_Object o - tag = Psych.dump_tags[o.class] - unless tag - klass = o.class == Object ? nil : o.class.name - tag = ['!ruby/object', klass].compact.join(':') - end - - map = @emitter.start_mapping(nil, tag, false, Nodes::Mapping::BLOCK) - register(o, map) - - dump_ivars o - @emitter.end_mapping - end - - def visit_Struct o - tag = ['!ruby/struct', o.class.name].compact.join(':') - - register o, @emitter.start_mapping(nil, tag, false, Nodes::Mapping::BLOCK) - o.members.each do |member| - @emitter.scalar member.to_s, nil, nil, true, false, Nodes::Scalar::ANY - accept o[member] - end - - dump_ivars o - - @emitter.end_mapping - end - - def visit_Exception o - tag = ['!ruby/exception', o.class.name].join ':' - - @emitter.start_mapping nil, tag, false, Nodes::Mapping::BLOCK - - { - 'message' => private_iv_get(o, 'mesg'), - 'backtrace' => private_iv_get(o, 'backtrace'), - }.each do |k,v| - next unless v - @emitter.scalar k, nil, nil, true, false, Nodes::Scalar::ANY - accept v - end - - dump_ivars o - - @emitter.end_mapping - end - - def visit_NameError o - tag = ['!ruby/exception', o.class.name].join ':' - - @emitter.start_mapping nil, tag, false, Nodes::Mapping::BLOCK - - { - 'message' => o.message.to_s, - 'backtrace' => private_iv_get(o, 'backtrace'), - }.each do |k,v| - next unless v - @emitter.scalar k, nil, nil, true, false, Nodes::Scalar::ANY - accept v - end - - dump_ivars o - - @emitter.end_mapping - end - - def visit_Regexp o - register o, @emitter.scalar(o.inspect, nil, '!ruby/regexp', false, false, Nodes::Scalar::ANY) - end - - def visit_DateTime o - formatted = if o.offset.zero? - o.strftime("%Y-%m-%d %H:%M:%S.%9N Z".freeze) - else - o.strftime("%Y-%m-%d %H:%M:%S.%9N %:z".freeze) - end - tag = '!ruby/object:DateTime' - register o, @emitter.scalar(formatted, nil, tag, false, false, Nodes::Scalar::ANY) - end - - def visit_Time o - formatted = format_time o - register o, @emitter.scalar(formatted, nil, nil, true, false, Nodes::Scalar::ANY) - end - - def visit_Rational o - register o, @emitter.start_mapping(nil, '!ruby/object:Rational', false, Nodes::Mapping::BLOCK) - - [ - 'denominator', o.denominator.to_s, - 'numerator', o.numerator.to_s - ].each do |m| - @emitter.scalar m, nil, nil, true, false, Nodes::Scalar::ANY - end - - @emitter.end_mapping - end - - def visit_Complex o - register o, @emitter.start_mapping(nil, '!ruby/object:Complex', false, Nodes::Mapping::BLOCK) - - ['real', o.real.to_s, 'image', o.imag.to_s].each do |m| - @emitter.scalar m, nil, nil, true, false, Nodes::Scalar::ANY - end - - @emitter.end_mapping - end - - def visit_Integer o - @emitter.scalar o.to_s, nil, nil, true, false, Nodes::Scalar::ANY - end - alias :visit_TrueClass :visit_Integer - alias :visit_FalseClass :visit_Integer - alias :visit_Date :visit_Integer - - def visit_Float o - if o.nan? - @emitter.scalar '.nan', nil, nil, true, false, Nodes::Scalar::ANY - elsif o.infinite? - @emitter.scalar((o.infinite? > 0 ? '.inf' : '-.inf'), - nil, nil, true, false, Nodes::Scalar::ANY) - else - @emitter.scalar o.to_s, nil, nil, true, false, Nodes::Scalar::ANY - end - end - - def visit_BigDecimal o - @emitter.scalar o._dump, nil, '!ruby/object:BigDecimal', false, false, Nodes::Scalar::ANY - end - - def visit_String o - plain = true - quote = true - style = Nodes::Scalar::PLAIN - tag = nil - str = o - - if binary?(o) - str = [o].pack('m').chomp - tag = '!binary' # FIXME: change to below when syck is removed - #tag = 'tag:yaml.org,2002:binary' - style = Nodes::Scalar::LITERAL - plain = false - quote = false - elsif o =~ /\n/ - style = Nodes::Scalar::LITERAL - elsif o == '<<' - style = Nodes::Scalar::SINGLE_QUOTED - tag = 'tag:yaml.org,2002:str' - plain = false - quote = false - elsif o =~ /^\W[^"]*$/ - style = Nodes::Scalar::DOUBLE_QUOTED - else - unless String === @ss.tokenize(o) - style = Nodes::Scalar::SINGLE_QUOTED - end - end - - ivars = find_ivars o - - if ivars.empty? - unless o.class == ::String - tag = "!ruby/string:#{o.class}" - plain = false - quote = false - end - @emitter.scalar str, nil, tag, plain, quote, style - else - maptag = '!ruby/string' - maptag << ":#{o.class}" unless o.class == ::String - - register o, @emitter.start_mapping(nil, maptag, false, Nodes::Mapping::BLOCK) - @emitter.scalar 'str', nil, nil, true, false, Nodes::Scalar::ANY - @emitter.scalar str, nil, tag, plain, quote, style - - dump_ivars o - - @emitter.end_mapping - end - end - - def visit_Module o - raise TypeError, "can't dump anonymous module: #{o}" unless o.name - register o, @emitter.scalar(o.name, nil, '!ruby/module', false, false, Nodes::Scalar::SINGLE_QUOTED) - end - - def visit_Class o - raise TypeError, "can't dump anonymous class: #{o}" unless o.name - register o, @emitter.scalar(o.name, nil, '!ruby/class', false, false, Nodes::Scalar::SINGLE_QUOTED) - end - - def visit_Range o - register o, @emitter.start_mapping(nil, '!ruby/range', false, Nodes::Mapping::BLOCK) - ['begin', o.begin, 'end', o.end, 'excl', o.exclude_end?].each do |m| - accept m - end - @emitter.end_mapping - end - - def visit_Hash o - tag = o.class == ::Hash ? nil : "!ruby/hash:#{o.class}" - implicit = !tag - - register(o, @emitter.start_mapping(nil, tag, implicit, Psych::Nodes::Mapping::BLOCK)) - - o.each do |k,v| - accept k - accept v - end - - @emitter.end_mapping - end - - def visit_Psych_Set o - register(o, @emitter.start_mapping(nil, '!set', false, Psych::Nodes::Mapping::BLOCK)) - - o.each do |k,v| - accept k - accept v - end - - @emitter.end_mapping - end - - def visit_Array o - if o.class == ::Array - register o, @emitter.start_sequence(nil, nil, true, Nodes::Sequence::BLOCK) - o.each { |c| accept c } - @emitter.end_sequence - else - visit_array_subclass o - end - end - - def visit_NilClass o - @emitter.scalar('', nil, 'tag:yaml.org,2002:null', true, false, Nodes::Scalar::ANY) - end - - def visit_Symbol o - if o.empty? - @emitter.scalar "", nil, '!ruby/symbol', false, false, Nodes::Scalar::ANY - else - @emitter.scalar ":#{o}", nil, nil, true, false, Nodes::Scalar::ANY - end - end - - def visit_BasicObject o - tag = Psych.dump_tags[o.class] - tag ||= "!ruby/marshalable:#{o.class.name}" - - map = @emitter.start_mapping(nil, tag, false, Nodes::Mapping::BLOCK) - register(o, map) - - o.marshal_dump.each(&method(:accept)) - - @emitter.end_mapping - end - - private - # FIXME: Remove the index and count checks in Psych 3.0 - NULL = "\x00" - BINARY_RANGE = "\x00-\x7F" - WS_RANGE = "^ -~\t\r\n" - - def binary? string - (string.encoding == Encoding::ASCII_8BIT && !string.ascii_only?) || - string.index(NULL) || - string.count(BINARY_RANGE, WS_RANGE).fdiv(string.length) > 0.3 - end - - def visit_array_subclass o - tag = "!ruby/array:#{o.class}" - if o.instance_variables.empty? - node = @emitter.start_sequence(nil, tag, false, Nodes::Sequence::BLOCK) - register o, node - o.each { |c| accept c } - @emitter.end_sequence - else - node = @emitter.start_mapping(nil, tag, false, Nodes::Sequence::BLOCK) - register o, node - - # Dump the internal list - accept 'internal' - @emitter.start_sequence(nil, nil, true, Nodes::Sequence::BLOCK) - o.each { |c| accept c } - @emitter.end_sequence - - # Dump the ivars - accept 'ivars' - @emitter.start_mapping(nil, nil, true, Nodes::Sequence::BLOCK) - o.instance_variables.each do |ivar| - accept ivar - accept o.instance_variable_get ivar - end - @emitter.end_mapping - - @emitter.end_mapping - end - end - - def dump_list o - end - - # '%:z' was no defined until 1.9.3 - if RUBY_VERSION < '1.9.3' - def format_time time - formatted = time.strftime("%Y-%m-%d %H:%M:%S.%9N") - - if time.utc? - formatted += " Z" - else - zone = time.strftime('%z') - formatted += " #{zone[0,3]}:#{zone[3,5]}" - end - - formatted - end - else - def format_time time - if time.utc? - time.strftime("%Y-%m-%d %H:%M:%S.%9N Z") - else - time.strftime("%Y-%m-%d %H:%M:%S.%9N %:z") - end - end - end - - # FIXME: remove this method once "to_yaml_properties" is removed - def find_ivars target - 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 - - target.instance_variables - end - - def register target, yaml_obj - @st.register target, yaml_obj - yaml_obj - end - - def dump_coder o - @coders << o - tag = Psych.dump_tags[o.class] - unless tag - klass = o.class == Object ? nil : o.class.name - tag = ['!ruby/object', klass].compact.join(':') - end - - c = Psych::Coder.new(tag) - o.encode_with(c) - emit_coder c - end - - def emit_coder c - case c.type - when :scalar - @emitter.scalar c.scalar, nil, c.tag, c.tag.nil?, false, Nodes::Scalar::ANY - when :seq - @emitter.start_sequence nil, c.tag, c.tag.nil?, Nodes::Sequence::BLOCK - c.seq.each do |thing| - accept thing - end - @emitter.end_sequence - when :map - @emitter.start_mapping nil, c.tag, c.implicit, c.style - c.map.each do |k,v| - accept k - accept v - end - @emitter.end_mapping - when :object - accept c.object - end - end - - def dump_ivars target - ivars = find_ivars target - - ivars.each do |iv| - @emitter.scalar("#{iv.to_s.sub(/^@/, '')}", nil, nil, true, false, Nodes::Scalar::ANY) - accept target.instance_variable_get(iv) - end - end - end - end -end diff --git a/ruby_2_2/ext/psych/lib/psych/y.rb b/ruby_2_2/ext/psych/lib/psych/y.rb deleted file mode 100644 index d0e049d4e5..0000000000 --- a/ruby_2_2/ext/psych/lib/psych/y.rb +++ /dev/null @@ -1,9 +0,0 @@ -module Kernel - ### - # An alias for Psych.dump_stream meant to be used with IRB. - def y *objects - puts Psych.dump_stream(*objects) - end - private :y -end - diff --git a/ruby_2_2/ext/psych/psych.c b/ruby_2_2/ext/psych/psych.c deleted file mode 100644 index 3bb59bfc11..0000000000 --- a/ruby_2_2/ext/psych/psych.c +++ /dev/null @@ -1,34 +0,0 @@ -#include <psych.h> - -/* call-seq: Psych.libyaml_version - * - * Returns the version of libyaml being used - */ -static VALUE libyaml_version(VALUE module) -{ - int major, minor, patch; - VALUE list[3]; - - yaml_get_version(&major, &minor, &patch); - - list[0] = INT2NUM((long)major); - list[1] = INT2NUM((long)minor); - list[2] = INT2NUM((long)patch); - - return rb_ary_new4((long)3, list); -} - -VALUE mPsych; - -void Init_psych(void) -{ - mPsych = rb_define_module("Psych"); - - rb_define_singleton_method(mPsych, "libyaml_version", libyaml_version, 0); - - Init_psych_parser(); - Init_psych_emitter(); - Init_psych_to_ruby(); - Init_psych_yaml_tree(); -} -/* vim: set noet sws=4 sw=4: */ diff --git a/ruby_2_2/ext/psych/psych.gemspec b/ruby_2_2/ext/psych/psych.gemspec deleted file mode 100644 index a968ed1d13..0000000000 --- a/ruby_2_2/ext/psych/psych.gemspec +++ /dev/null @@ -1,23 +0,0 @@ -# -*- encoding: utf-8 -*- - -Gem::Specification.new do |s| - s.name = "psych" - s.version = "2.0.8.1" - - s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version= - s.require_paths = ["lib"] - s.authors = ["Aaron Patterson"] - s.date = "2014-12-05" - s.description = "Psych is a YAML parser and emitter. Psych leverages libyaml[http://pyyaml.org/wiki/LibYAML]\nfor its YAML parsing and emitting capabilities. In addition to wrapping\nlibyaml, Psych also knows how to serialize and de-serialize most Ruby objects\nto and from the YAML format." - s.email = ["aaron@tenderlovemaking.com"] - s.extensions = ["ext/psych/extconf.rb"] - s.extra_rdoc_files = ["CHANGELOG.rdoc", "README.rdoc"] - s.files = [".autotest", ".gemtest", "CHANGELOG.rdoc", "Manifest.txt", "README.rdoc", "Rakefile", "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/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", "test/psych/handlers/test_recorder.rb", "test/psych/helper.rb", "test/psych/json/test_stream.rb", "test/psych/nodes/test_enumerable.rb", "test/psych/test_alias_and_anchor.rb", "test/psych/test_array.rb", "test/psych/test_boolean.rb", "test/psych/test_class.rb", "test/psych/test_coder.rb", "test/psych/test_date_time.rb", "test/psych/test_deprecated.rb", "test/psych/test_document.rb", "test/psych/test_emitter.rb", "test/psych/test_encoding.rb", "test/psych/test_exception.rb", "test/psych/test_hash.rb", "test/psych/test_json_tree.rb", "test/psych/test_marshalable.rb", "test/psych/test_merge_keys.rb", "test/psych/test_nil.rb", "test/psych/test_null.rb", "test/psych/test_numeric.rb", "test/psych/test_object.rb", "test/psych/test_object_references.rb", "test/psych/test_omap.rb", "test/psych/test_parser.rb", "test/psych/test_psych.rb", "test/psych/test_safe_load.rb", "test/psych/test_scalar.rb", "test/psych/test_scalar_scanner.rb", "test/psych/test_serialize_subclasses.rb", "test/psych/test_set.rb", "test/psych/test_stream.rb", "test/psych/test_string.rb", "test/psych/test_struct.rb", "test/psych/test_symbol.rb", "test/psych/test_tainted.rb", "test/psych/test_to_yaml_properties.rb", "test/psych/test_tree_builder.rb", "test/psych/test_yaml.rb", "test/psych/test_yamldbm.rb", "test/psych/test_yamlstore.rb", "test/psych/visitors/test_depth_first.rb", "test/psych/visitors/test_emitter.rb", "test/psych/visitors/test_to_ruby.rb", "test/psych/visitors/test_yaml_tree.rb"] - s.homepage = "http://github.com/tenderlove/psych" - s.licenses = ["MIT"] - s.rdoc_options = ["--main", "README.rdoc"] - s.required_ruby_version = Gem::Requirement.new(">= 1.9.2") - s.rubygems_version = "2.4.4" - s.summary = "Psych is a YAML parser and emitter" - s.test_files = ["test/psych/handlers/test_recorder.rb", "test/psych/json/test_stream.rb", "test/psych/nodes/test_enumerable.rb", "test/psych/test_alias_and_anchor.rb", "test/psych/test_array.rb", "test/psych/test_boolean.rb", "test/psych/test_class.rb", "test/psych/test_coder.rb", "test/psych/test_date_time.rb", "test/psych/test_deprecated.rb", "test/psych/test_document.rb", "test/psych/test_emitter.rb", "test/psych/test_encoding.rb", "test/psych/test_exception.rb", "test/psych/test_hash.rb", "test/psych/test_json_tree.rb", "test/psych/test_marshalable.rb", "test/psych/test_merge_keys.rb", "test/psych/test_nil.rb", "test/psych/test_null.rb", "test/psych/test_numeric.rb", "test/psych/test_object.rb", "test/psych/test_object_references.rb", "test/psych/test_omap.rb", "test/psych/test_parser.rb", "test/psych/test_psych.rb", "test/psych/test_safe_load.rb", "test/psych/test_scalar.rb", "test/psych/test_scalar_scanner.rb", "test/psych/test_serialize_subclasses.rb", "test/psych/test_set.rb", "test/psych/test_stream.rb", "test/psych/test_string.rb", "test/psych/test_struct.rb", "test/psych/test_symbol.rb", "test/psych/test_tainted.rb", "test/psych/test_to_yaml_properties.rb", "test/psych/test_tree_builder.rb", "test/psych/test_yaml.rb", "test/psych/test_yamldbm.rb", "test/psych/test_yamlstore.rb", "test/psych/visitors/test_depth_first.rb", "test/psych/visitors/test_emitter.rb", "test/psych/visitors/test_to_ruby.rb", "test/psych/visitors/test_yaml_tree.rb"] -end diff --git a/ruby_2_2/ext/psych/psych.h b/ruby_2_2/ext/psych/psych.h deleted file mode 100644 index 1830ca4b19..0000000000 --- a/ruby_2_2/ext/psych/psych.h +++ /dev/null @@ -1,20 +0,0 @@ -#ifndef PSYCH_H -#define PSYCH_H - -#include <ruby.h> - -#ifdef HAVE_RUBY_ENCODING_H -#include <ruby/encoding.h> -#endif - -#include <yaml.h> - -#include <psych_parser.h> -#include <psych_emitter.h> -#include <psych_to_ruby.h> -#include <psych_yaml_tree.h> - -extern VALUE mPsych; - - -#endif diff --git a/ruby_2_2/ext/psych/psych_emitter.c b/ruby_2_2/ext/psych/psych_emitter.c deleted file mode 100644 index 4ba238102b..0000000000 --- a/ruby_2_2/ext/psych/psych_emitter.c +++ /dev/null @@ -1,556 +0,0 @@ -#include <psych.h> - -VALUE cPsychEmitter; -static ID id_write; -static ID id_line_width; -static ID id_indentation; -static ID id_canonical; - -static void emit(yaml_emitter_t * emitter, yaml_event_t * event) -{ - if(!yaml_emitter_emit(emitter, event)) - rb_raise(rb_eRuntimeError, "%s", emitter->problem); -} - -static int writer(void *ctx, unsigned char *buffer, size_t size) -{ - VALUE io = (VALUE)ctx; - VALUE str = rb_str_new((const char *)buffer, (long)size); - VALUE wrote = rb_funcall(io, id_write, 1, str); - return (int)NUM2INT(wrote); -} - -static void dealloc(void * ptr) -{ - yaml_emitter_t * emitter; - - emitter = (yaml_emitter_t *)ptr; - yaml_emitter_delete(emitter); - xfree(emitter); -} - -#if 0 -static size_t memsize(const void *ptr) -{ - const yaml_emitter_t *emitter = ptr; - /* TODO: calculate emitter's size */ - return 0; -} -#endif - -static const rb_data_type_t psych_emitter_type = { - "Psych/emitter", - {0, dealloc, 0,}, - 0, 0, -#ifdef RUBY_TYPED_FREE_IMMEDIATELY - RUBY_TYPED_FREE_IMMEDIATELY, -#endif -}; - -static VALUE allocate(VALUE klass) -{ - yaml_emitter_t * emitter; - - emitter = xmalloc(sizeof(yaml_emitter_t)); - - yaml_emitter_initialize(emitter); - yaml_emitter_set_unicode(emitter, 1); - yaml_emitter_set_indent(emitter, 2); - - return TypedData_Wrap_Struct(klass, &psych_emitter_type, emitter); -} - -/* call-seq: Psych::Emitter.new(io, options = Psych::Emitter::OPTIONS) - * - * Create a new Psych::Emitter that writes to +io+. - */ -static VALUE initialize(int argc, VALUE *argv, VALUE self) -{ - yaml_emitter_t * emitter; - VALUE io, options; - VALUE line_width; - VALUE indent; - VALUE canonical; - - TypedData_Get_Struct(self, yaml_emitter_t, &psych_emitter_type, emitter); - - if (rb_scan_args(argc, argv, "11", &io, &options) == 2) { - line_width = rb_funcall(options, id_line_width, 0); - indent = rb_funcall(options, id_indentation, 0); - canonical = rb_funcall(options, id_canonical, 0); - - yaml_emitter_set_width(emitter, NUM2INT(line_width)); - yaml_emitter_set_indent(emitter, NUM2INT(indent)); - yaml_emitter_set_canonical(emitter, Qtrue == canonical ? 1 : 0); - } - - yaml_emitter_set_output(emitter, writer, (void *)io); - - return self; -} - -/* call-seq: emitter.start_stream(encoding) - * - * Start a stream emission with +encoding+ - * - * See Psych::Handler#start_stream - */ -static VALUE start_stream(VALUE self, VALUE encoding) -{ - yaml_emitter_t * emitter; - yaml_event_t event; - TypedData_Get_Struct(self, yaml_emitter_t, &psych_emitter_type, emitter); - Check_Type(encoding, T_FIXNUM); - - yaml_stream_start_event_initialize(&event, (yaml_encoding_t)NUM2INT(encoding)); - - emit(emitter, &event); - - return self; -} - -/* call-seq: emitter.end_stream - * - * End a stream emission - * - * See Psych::Handler#end_stream - */ -static VALUE end_stream(VALUE self) -{ - yaml_emitter_t * emitter; - yaml_event_t event; - TypedData_Get_Struct(self, yaml_emitter_t, &psych_emitter_type, emitter); - - yaml_stream_end_event_initialize(&event); - - emit(emitter, &event); - - return self; -} - -/* call-seq: emitter.start_document(version, tags, implicit) - * - * Start a document emission with YAML +version+, +tags+, and an +implicit+ - * start. - * - * See Psych::Handler#start_document - */ -static VALUE start_document(VALUE self, VALUE version, VALUE tags, VALUE imp) -{ - yaml_emitter_t * emitter; - yaml_tag_directive_t * head = NULL; - yaml_tag_directive_t * tail = NULL; - yaml_event_t event; - yaml_version_directive_t version_directive; - TypedData_Get_Struct(self, yaml_emitter_t, &psych_emitter_type, emitter); - - - Check_Type(version, T_ARRAY); - - if(RARRAY_LEN(version) > 0) { - VALUE major = rb_ary_entry(version, (long)0); - VALUE minor = rb_ary_entry(version, (long)1); - - version_directive.major = NUM2INT(major); - version_directive.minor = NUM2INT(minor); - } - - if(RTEST(tags)) { - int i = 0; -#ifdef HAVE_RUBY_ENCODING_H - rb_encoding * encoding = rb_utf8_encoding(); -#endif - - Check_Type(tags, T_ARRAY); - - head = xcalloc((size_t)RARRAY_LEN(tags), sizeof(yaml_tag_directive_t)); - tail = head; - - for(i = 0; i < RARRAY_LEN(tags); i++) { - VALUE tuple = RARRAY_PTR(tags)[i]; - VALUE name; - VALUE value; - - Check_Type(tuple, T_ARRAY); - - if(RARRAY_LEN(tuple) < 2) { - xfree(head); - rb_raise(rb_eRuntimeError, "tag tuple must be of length 2"); - } - name = RARRAY_PTR(tuple)[0]; - value = RARRAY_PTR(tuple)[1]; -#ifdef HAVE_RUBY_ENCODING_H - name = rb_str_export_to_enc(name, encoding); - value = rb_str_export_to_enc(value, encoding); -#endif - - tail->handle = (yaml_char_t *)StringValuePtr(name); - tail->prefix = (yaml_char_t *)StringValuePtr(value); - - tail++; - } - } - - yaml_document_start_event_initialize( - &event, - (RARRAY_LEN(version) > 0) ? &version_directive : NULL, - head, - tail, - imp ? 1 : 0 - ); - - emit(emitter, &event); - - if(head) xfree(head); - - return self; -} - -/* call-seq: emitter.end_document(implicit) - * - * End a document emission with an +implicit+ ending. - * - * See Psych::Handler#end_document - */ -static VALUE end_document(VALUE self, VALUE imp) -{ - yaml_emitter_t * emitter; - yaml_event_t event; - TypedData_Get_Struct(self, yaml_emitter_t, &psych_emitter_type, emitter); - - yaml_document_end_event_initialize(&event, imp ? 1 : 0); - - emit(emitter, &event); - - return self; -} - -/* call-seq: emitter.scalar(value, anchor, tag, plain, quoted, style) - * - * Emit a scalar with +value+, +anchor+, +tag+, and a +plain+ or +quoted+ - * string type with +style+. - * - * See Psych::Handler#scalar - */ -static VALUE scalar( - VALUE self, - VALUE value, - VALUE anchor, - VALUE tag, - VALUE plain, - VALUE quoted, - VALUE style - ) { - yaml_emitter_t * emitter; - yaml_event_t event; -#ifdef HAVE_RUBY_ENCODING_H - rb_encoding *encoding; -#endif - TypedData_Get_Struct(self, yaml_emitter_t, &psych_emitter_type, emitter); - - Check_Type(value, T_STRING); - -#ifdef HAVE_RUBY_ENCODING_H - encoding = rb_utf8_encoding(); - - value = rb_str_export_to_enc(value, encoding); - - if(!NIL_P(anchor)) { - Check_Type(anchor, T_STRING); - anchor = rb_str_export_to_enc(anchor, encoding); - } - - if(!NIL_P(tag)) { - Check_Type(tag, T_STRING); - tag = rb_str_export_to_enc(tag, encoding); - } -#endif - - yaml_scalar_event_initialize( - &event, - (yaml_char_t *)(NIL_P(anchor) ? NULL : StringValuePtr(anchor)), - (yaml_char_t *)(NIL_P(tag) ? NULL : StringValuePtr(tag)), - (yaml_char_t*)StringValuePtr(value), - (int)RSTRING_LEN(value), - plain ? 1 : 0, - quoted ? 1 : 0, - (yaml_scalar_style_t)NUM2INT(style) - ); - - emit(emitter, &event); - - return self; -} - -/* call-seq: emitter.start_sequence(anchor, tag, implicit, style) - * - * Start emitting a sequence with +anchor+, a +tag+, +implicit+ sequence - * start and end, along with +style+. - * - * See Psych::Handler#start_sequence - */ -static VALUE start_sequence( - VALUE self, - VALUE anchor, - VALUE tag, - VALUE implicit, - VALUE style - ) { - yaml_emitter_t * emitter; - yaml_event_t event; - -#ifdef HAVE_RUBY_ENCODING_H - rb_encoding * encoding = rb_utf8_encoding(); - - if(!NIL_P(anchor)) { - Check_Type(anchor, T_STRING); - anchor = rb_str_export_to_enc(anchor, encoding); - } - - if(!NIL_P(tag)) { - Check_Type(tag, T_STRING); - tag = rb_str_export_to_enc(tag, encoding); - } -#endif - - TypedData_Get_Struct(self, yaml_emitter_t, &psych_emitter_type, emitter); - - yaml_sequence_start_event_initialize( - &event, - (yaml_char_t *)(NIL_P(anchor) ? NULL : StringValuePtr(anchor)), - (yaml_char_t *)(NIL_P(tag) ? NULL : StringValuePtr(tag)), - implicit ? 1 : 0, - (yaml_sequence_style_t)NUM2INT(style) - ); - - emit(emitter, &event); - - return self; -} - -/* call-seq: emitter.end_sequence - * - * End sequence emission. - * - * See Psych::Handler#end_sequence - */ -static VALUE end_sequence(VALUE self) -{ - yaml_emitter_t * emitter; - yaml_event_t event; - TypedData_Get_Struct(self, yaml_emitter_t, &psych_emitter_type, emitter); - - yaml_sequence_end_event_initialize(&event); - - emit(emitter, &event); - - return self; -} - -/* call-seq: emitter.start_mapping(anchor, tag, implicit, style) - * - * Start emitting a YAML map with +anchor+, +tag+, an +implicit+ start - * and end, and +style+. - * - * See Psych::Handler#start_mapping - */ -static VALUE start_mapping( - VALUE self, - VALUE anchor, - VALUE tag, - VALUE implicit, - VALUE style - ) { - yaml_emitter_t * emitter; - yaml_event_t event; -#ifdef HAVE_RUBY_ENCODING_H - rb_encoding *encoding; -#endif - TypedData_Get_Struct(self, yaml_emitter_t, &psych_emitter_type, emitter); - -#ifdef HAVE_RUBY_ENCODING_H - encoding = rb_utf8_encoding(); - - if(!NIL_P(anchor)) { - Check_Type(anchor, T_STRING); - anchor = rb_str_export_to_enc(anchor, encoding); - } - - if(!NIL_P(tag)) { - Check_Type(tag, T_STRING); - tag = rb_str_export_to_enc(tag, encoding); - } -#endif - - yaml_mapping_start_event_initialize( - &event, - (yaml_char_t *)(NIL_P(anchor) ? NULL : StringValuePtr(anchor)), - (yaml_char_t *)(NIL_P(tag) ? NULL : StringValuePtr(tag)), - implicit ? 1 : 0, - (yaml_mapping_style_t)NUM2INT(style) - ); - - emit(emitter, &event); - - return self; -} - -/* call-seq: emitter.end_mapping - * - * Emit the end of a mapping. - * - * See Psych::Handler#end_mapping - */ -static VALUE end_mapping(VALUE self) -{ - yaml_emitter_t * emitter; - yaml_event_t event; - TypedData_Get_Struct(self, yaml_emitter_t, &psych_emitter_type, emitter); - - yaml_mapping_end_event_initialize(&event); - - emit(emitter, &event); - - return self; -} - -/* call-seq: emitter.alias(anchor) - * - * Emit an alias with +anchor+. - * - * See Psych::Handler#alias - */ -static VALUE alias(VALUE self, VALUE anchor) -{ - yaml_emitter_t * emitter; - yaml_event_t event; - TypedData_Get_Struct(self, yaml_emitter_t, &psych_emitter_type, emitter); - -#ifdef HAVE_RUBY_ENCODING_H - if(!NIL_P(anchor)) { - Check_Type(anchor, T_STRING); - anchor = rb_str_export_to_enc(anchor, rb_utf8_encoding()); - } -#endif - - yaml_alias_event_initialize( - &event, - (yaml_char_t *)(NIL_P(anchor) ? NULL : StringValuePtr(anchor)) - ); - - emit(emitter, &event); - - return self; -} - -/* call-seq: emitter.canonical = true - * - * Set the output style to canonical, or not. - */ -static VALUE set_canonical(VALUE self, VALUE style) -{ - yaml_emitter_t * emitter; - TypedData_Get_Struct(self, yaml_emitter_t, &psych_emitter_type, emitter); - - yaml_emitter_set_canonical(emitter, Qtrue == style ? 1 : 0); - - return style; -} - -/* call-seq: emitter.canonical - * - * Get the output style, canonical or not. - */ -static VALUE canonical(VALUE self) -{ - yaml_emitter_t * emitter; - TypedData_Get_Struct(self, yaml_emitter_t, &psych_emitter_type, emitter); - - return (emitter->canonical == 0) ? Qfalse : Qtrue; -} - -/* call-seq: emitter.indentation = level - * - * Set the indentation level to +level+. The level must be less than 10 and - * greater than 1. - */ -static VALUE set_indentation(VALUE self, VALUE level) -{ - yaml_emitter_t * emitter; - TypedData_Get_Struct(self, yaml_emitter_t, &psych_emitter_type, emitter); - - yaml_emitter_set_indent(emitter, NUM2INT(level)); - - return level; -} - -/* call-seq: emitter.indentation - * - * Get the indentation level. - */ -static VALUE indentation(VALUE self) -{ - yaml_emitter_t * emitter; - TypedData_Get_Struct(self, yaml_emitter_t, &psych_emitter_type, emitter); - - return INT2NUM(emitter->best_indent); -} - -/* call-seq: emitter.line_width - * - * Get the preferred line width. - */ -static VALUE line_width(VALUE self) -{ - yaml_emitter_t * emitter; - TypedData_Get_Struct(self, yaml_emitter_t, &psych_emitter_type, emitter); - - return INT2NUM(emitter->best_width); -} - -/* call-seq: emitter.line_width = width - * - * Set the preferred line with to +width+. - */ -static VALUE set_line_width(VALUE self, VALUE width) -{ - yaml_emitter_t * emitter; - TypedData_Get_Struct(self, yaml_emitter_t, &psych_emitter_type, emitter); - - yaml_emitter_set_width(emitter, NUM2INT(width)); - - return width; -} - -void Init_psych_emitter(void) -{ - VALUE psych = rb_define_module("Psych"); - VALUE handler = rb_define_class_under(psych, "Handler", rb_cObject); - cPsychEmitter = rb_define_class_under(psych, "Emitter", handler); - - rb_define_alloc_func(cPsychEmitter, allocate); - - rb_define_method(cPsychEmitter, "initialize", initialize, -1); - rb_define_method(cPsychEmitter, "start_stream", start_stream, 1); - rb_define_method(cPsychEmitter, "end_stream", end_stream, 0); - rb_define_method(cPsychEmitter, "start_document", start_document, 3); - rb_define_method(cPsychEmitter, "end_document", end_document, 1); - rb_define_method(cPsychEmitter, "scalar", scalar, 6); - rb_define_method(cPsychEmitter, "start_sequence", start_sequence, 4); - rb_define_method(cPsychEmitter, "end_sequence", end_sequence, 0); - rb_define_method(cPsychEmitter, "start_mapping", start_mapping, 4); - rb_define_method(cPsychEmitter, "end_mapping", end_mapping, 0); - rb_define_method(cPsychEmitter, "alias", alias, 1); - rb_define_method(cPsychEmitter, "canonical", canonical, 0); - rb_define_method(cPsychEmitter, "canonical=", set_canonical, 1); - rb_define_method(cPsychEmitter, "indentation", indentation, 0); - rb_define_method(cPsychEmitter, "indentation=", set_indentation, 1); - rb_define_method(cPsychEmitter, "line_width", line_width, 0); - rb_define_method(cPsychEmitter, "line_width=", set_line_width, 1); - - id_write = rb_intern("write"); - id_line_width = rb_intern("line_width"); - id_indentation = rb_intern("indentation"); - id_canonical = rb_intern("canonical"); -} -/* vim: set noet sws=4 sw=4: */ diff --git a/ruby_2_2/ext/psych/psych_emitter.h b/ruby_2_2/ext/psych/psych_emitter.h deleted file mode 100644 index 4c1482a78b..0000000000 --- a/ruby_2_2/ext/psych/psych_emitter.h +++ /dev/null @@ -1,8 +0,0 @@ -#ifndef PSYCH_EMITTER_H -#define PSYCH_EMITTER_H - -#include <psych.h> - -void Init_psych_emitter(void); - -#endif diff --git a/ruby_2_2/ext/psych/psych_parser.c b/ruby_2_2/ext/psych/psych_parser.c deleted file mode 100644 index faae460dd0..0000000000 --- a/ruby_2_2/ext/psych/psych_parser.c +++ /dev/null @@ -1,597 +0,0 @@ -#include <psych.h> - -VALUE cPsychParser; -VALUE ePsychSyntaxError; - -static ID id_read; -static ID id_path; -static ID id_empty; -static ID id_start_stream; -static ID id_end_stream; -static ID id_start_document; -static ID id_end_document; -static ID id_alias; -static ID id_scalar; -static ID id_start_sequence; -static ID id_end_sequence; -static ID id_start_mapping; -static ID id_end_mapping; - -#define PSYCH_TRANSCODE(_str, _yaml_enc, _internal_enc) \ - do { \ - rb_enc_associate_index((_str), (_yaml_enc)); \ - if(_internal_enc) \ - (_str) = rb_str_export_to_enc((_str), (_internal_enc)); \ - } while (0) - -static int io_reader(void * data, unsigned char *buf, size_t size, size_t *read) -{ - VALUE io = (VALUE)data; - VALUE string = rb_funcall(io, id_read, 1, INT2NUM(size)); - - *read = 0; - - if(! NIL_P(string)) { - void * str = (void *)StringValuePtr(string); - *read = (size_t)RSTRING_LEN(string); - memcpy(buf, str, *read); - } - - return 1; -} - -static void dealloc(void * ptr) -{ - yaml_parser_t * parser; - - parser = (yaml_parser_t *)ptr; - yaml_parser_delete(parser); - xfree(parser); -} - -#if 0 -static size_t memsize(const void *ptr) -{ - const yaml_parser_t *parser = ptr; - /* TODO: calculate parser's size */ - return 0; -} -#endif - -static const rb_data_type_t psych_parser_type = { - "Psych/parser", - {0, dealloc, 0,}, - 0, 0, -#ifdef RUBY_TYPED_FREE_IMMEDIATELY - RUBY_TYPED_FREE_IMMEDIATELY, -#endif -}; - -static VALUE allocate(VALUE klass) -{ - yaml_parser_t * parser; - - parser = xmalloc(sizeof(yaml_parser_t)); - yaml_parser_initialize(parser); - - return TypedData_Wrap_Struct(klass, &psych_parser_type, parser); -} - -static VALUE make_exception(yaml_parser_t * parser, VALUE path) -{ - size_t line, column; - - line = parser->context_mark.line + 1; - column = parser->context_mark.column + 1; - - return rb_funcall(ePsychSyntaxError, rb_intern("new"), 6, - path, - INT2NUM(line), - INT2NUM(column), - INT2NUM(parser->problem_offset), - parser->problem ? rb_usascii_str_new2(parser->problem) : Qnil, - parser->context ? rb_usascii_str_new2(parser->context) : Qnil); -} - -#ifdef HAVE_RUBY_ENCODING_H -static VALUE transcode_string(VALUE src, int * parser_encoding) -{ - int utf8 = rb_utf8_encindex(); - int utf16le = rb_enc_find_index("UTF-16LE"); - int utf16be = rb_enc_find_index("UTF-16BE"); - int source_encoding = rb_enc_get_index(src); - - if (source_encoding == utf8) { - *parser_encoding = YAML_UTF8_ENCODING; - return src; - } - - if (source_encoding == utf16le) { - *parser_encoding = YAML_UTF16LE_ENCODING; - return src; - } - - if (source_encoding == utf16be) { - *parser_encoding = YAML_UTF16BE_ENCODING; - return src; - } - - src = rb_str_export_to_enc(src, rb_utf8_encoding()); - RB_GC_GUARD(src); - - *parser_encoding = YAML_UTF8_ENCODING; - return src; -} - -static VALUE transcode_io(VALUE src, int * parser_encoding) -{ - VALUE io_external_encoding; - int io_external_enc_index; - - io_external_encoding = rb_funcall(src, rb_intern("external_encoding"), 0); - - /* if no encoding is returned, assume ascii8bit. */ - if (NIL_P(io_external_encoding)) { - io_external_enc_index = rb_ascii8bit_encindex(); - } else { - io_external_enc_index = rb_to_encoding_index(io_external_encoding); - } - - /* Treat US-ASCII as utf_8 */ - if (io_external_enc_index == rb_usascii_encindex()) { - *parser_encoding = YAML_UTF8_ENCODING; - return src; - } - - if (io_external_enc_index == rb_utf8_encindex()) { - *parser_encoding = YAML_UTF8_ENCODING; - return src; - } - - if (io_external_enc_index == rb_enc_find_index("UTF-16LE")) { - *parser_encoding = YAML_UTF16LE_ENCODING; - return src; - } - - if (io_external_enc_index == rb_enc_find_index("UTF-16BE")) { - *parser_encoding = YAML_UTF16BE_ENCODING; - return src; - } - - /* Just guess on ASCII-8BIT */ - if (io_external_enc_index == rb_ascii8bit_encindex()) { - *parser_encoding = YAML_ANY_ENCODING; - return src; - } - - /* If the external encoding is something we don't know how to handle, - * fall back to YAML_ANY_ENCODING. */ - *parser_encoding = YAML_ANY_ENCODING; - - return src; -} - -#endif - -static VALUE protected_start_stream(VALUE pointer) -{ - VALUE *args = (VALUE *)pointer; - return rb_funcall(args[0], id_start_stream, 1, args[1]); -} - -static VALUE protected_start_document(VALUE pointer) -{ - VALUE *args = (VALUE *)pointer; - return rb_funcall3(args[0], id_start_document, 3, args + 1); -} - -static VALUE protected_end_document(VALUE pointer) -{ - VALUE *args = (VALUE *)pointer; - return rb_funcall(args[0], id_end_document, 1, args[1]); -} - -static VALUE protected_alias(VALUE pointer) -{ - VALUE *args = (VALUE *)pointer; - return rb_funcall(args[0], id_alias, 1, args[1]); -} - -static VALUE protected_scalar(VALUE pointer) -{ - VALUE *args = (VALUE *)pointer; - return rb_funcall3(args[0], id_scalar, 6, args + 1); -} - -static VALUE protected_start_sequence(VALUE pointer) -{ - VALUE *args = (VALUE *)pointer; - return rb_funcall3(args[0], id_start_sequence, 4, args + 1); -} - -static VALUE protected_end_sequence(VALUE handler) -{ - return rb_funcall(handler, id_end_sequence, 0); -} - -static VALUE protected_start_mapping(VALUE pointer) -{ - VALUE *args = (VALUE *)pointer; - return rb_funcall3(args[0], id_start_mapping, 4, args + 1); -} - -static VALUE protected_end_mapping(VALUE handler) -{ - return rb_funcall(handler, id_end_mapping, 0); -} - -static VALUE protected_empty(VALUE handler) -{ - return rb_funcall(handler, id_empty, 0); -} - -static VALUE protected_end_stream(VALUE handler) -{ - return rb_funcall(handler, id_end_stream, 0); -} - -/* - * call-seq: - * parser.parse(yaml) - * - * Parse the YAML document contained in +yaml+. Events will be called on - * the handler set on the parser instance. - * - * See Psych::Parser and Psych::Parser#handler - */ -static VALUE parse(int argc, VALUE *argv, VALUE self) -{ - VALUE yaml, path; - yaml_parser_t * parser; - yaml_event_t event; - int done = 0; - int tainted = 0; - int state = 0; - int parser_encoding = YAML_ANY_ENCODING; -#ifdef HAVE_RUBY_ENCODING_H - int encoding = rb_utf8_encindex(); - rb_encoding * internal_enc = rb_default_internal_encoding(); -#endif - VALUE handler = rb_iv_get(self, "@handler"); - - if (rb_scan_args(argc, argv, "11", &yaml, &path) == 1) { - if(rb_respond_to(yaml, id_path)) - path = rb_funcall(yaml, id_path, 0); - else - path = rb_str_new2("<unknown>"); - } - - TypedData_Get_Struct(self, yaml_parser_t, &psych_parser_type, parser); - - yaml_parser_delete(parser); - yaml_parser_initialize(parser); - - if (OBJ_TAINTED(yaml)) tainted = 1; - - if (rb_respond_to(yaml, id_read)) { -#ifdef HAVE_RUBY_ENCODING_H - yaml = transcode_io(yaml, &parser_encoding); - yaml_parser_set_encoding(parser, parser_encoding); -#endif - yaml_parser_set_input(parser, io_reader, (void *)yaml); - if (RTEST(rb_obj_is_kind_of(yaml, rb_cIO))) tainted = 1; - } else { - StringValue(yaml); -#ifdef HAVE_RUBY_ENCODING_H - yaml = transcode_string(yaml, &parser_encoding); - yaml_parser_set_encoding(parser, parser_encoding); -#endif - yaml_parser_set_input_string( - parser, - (const unsigned char *)RSTRING_PTR(yaml), - (size_t)RSTRING_LEN(yaml) - ); - } - - while(!done) { - if(!yaml_parser_parse(parser, &event)) { - VALUE exception; - - exception = make_exception(parser, path); - yaml_parser_delete(parser); - yaml_parser_initialize(parser); - - rb_exc_raise(exception); - } - - switch(event.type) { - case YAML_STREAM_START_EVENT: - { - VALUE args[2]; - - args[0] = handler; - args[1] = INT2NUM((long)event.data.stream_start.encoding); - rb_protect(protected_start_stream, (VALUE)args, &state); - } - break; - case YAML_DOCUMENT_START_EVENT: - { - VALUE args[4]; - /* Get a list of tag directives (if any) */ - VALUE tag_directives = rb_ary_new(); - /* Grab the document version */ - VALUE version = event.data.document_start.version_directive ? - rb_ary_new3( - (long)2, - INT2NUM((long)event.data.document_start.version_directive->major), - INT2NUM((long)event.data.document_start.version_directive->minor) - ) : rb_ary_new(); - - if(event.data.document_start.tag_directives.start) { - yaml_tag_directive_t *start = - event.data.document_start.tag_directives.start; - yaml_tag_directive_t *end = - event.data.document_start.tag_directives.end; - for(; start != end; start++) { - VALUE handle = Qnil; - VALUE prefix = Qnil; - if(start->handle) { - handle = rb_str_new2((const char *)start->handle); - if (tainted) OBJ_TAINT(handle); -#ifdef HAVE_RUBY_ENCODING_H - PSYCH_TRANSCODE(handle, encoding, internal_enc); -#endif - } - - if(start->prefix) { - prefix = rb_str_new2((const char *)start->prefix); - if (tainted) OBJ_TAINT(prefix); -#ifdef HAVE_RUBY_ENCODING_H - PSYCH_TRANSCODE(prefix, encoding, internal_enc); -#endif - } - - rb_ary_push(tag_directives, rb_ary_new3((long)2, handle, prefix)); - } - } - args[0] = handler; - args[1] = version; - args[2] = tag_directives; - args[3] = event.data.document_start.implicit == 1 ? Qtrue : Qfalse; - rb_protect(protected_start_document, (VALUE)args, &state); - } - break; - case YAML_DOCUMENT_END_EVENT: - { - VALUE args[2]; - - args[0] = handler; - args[1] = event.data.document_end.implicit == 1 ? Qtrue : Qfalse; - rb_protect(protected_end_document, (VALUE)args, &state); - } - break; - case YAML_ALIAS_EVENT: - { - VALUE args[2]; - VALUE alias = Qnil; - if(event.data.alias.anchor) { - alias = rb_str_new2((const char *)event.data.alias.anchor); - if (tainted) OBJ_TAINT(alias); -#ifdef HAVE_RUBY_ENCODING_H - PSYCH_TRANSCODE(alias, encoding, internal_enc); -#endif - } - - args[0] = handler; - args[1] = alias; - rb_protect(protected_alias, (VALUE)args, &state); - } - break; - case YAML_SCALAR_EVENT: - { - VALUE args[7]; - VALUE anchor = Qnil; - VALUE tag = Qnil; - VALUE plain_implicit, quoted_implicit, style; - VALUE val = rb_str_new( - (const char *)event.data.scalar.value, - (long)event.data.scalar.length - ); - if (tainted) OBJ_TAINT(val); - -#ifdef HAVE_RUBY_ENCODING_H - PSYCH_TRANSCODE(val, encoding, internal_enc); -#endif - - if(event.data.scalar.anchor) { - anchor = rb_str_new2((const char *)event.data.scalar.anchor); - if (tainted) OBJ_TAINT(anchor); -#ifdef HAVE_RUBY_ENCODING_H - PSYCH_TRANSCODE(anchor, encoding, internal_enc); -#endif - } - - if(event.data.scalar.tag) { - tag = rb_str_new2((const char *)event.data.scalar.tag); - if (tainted) OBJ_TAINT(tag); -#ifdef HAVE_RUBY_ENCODING_H - PSYCH_TRANSCODE(tag, encoding, internal_enc); -#endif - } - - plain_implicit = - event.data.scalar.plain_implicit == 0 ? Qfalse : Qtrue; - - quoted_implicit = - event.data.scalar.quoted_implicit == 0 ? Qfalse : Qtrue; - - style = INT2NUM((long)event.data.scalar.style); - - args[0] = handler; - args[1] = val; - args[2] = anchor; - args[3] = tag; - args[4] = plain_implicit; - args[5] = quoted_implicit; - args[6] = style; - rb_protect(protected_scalar, (VALUE)args, &state); - } - break; - case YAML_SEQUENCE_START_EVENT: - { - VALUE args[5]; - VALUE anchor = Qnil; - VALUE tag = Qnil; - VALUE implicit, style; - if(event.data.sequence_start.anchor) { - anchor = rb_str_new2((const char *)event.data.sequence_start.anchor); - if (tainted) OBJ_TAINT(anchor); -#ifdef HAVE_RUBY_ENCODING_H - PSYCH_TRANSCODE(anchor, encoding, internal_enc); -#endif - } - - tag = Qnil; - if(event.data.sequence_start.tag) { - tag = rb_str_new2((const char *)event.data.sequence_start.tag); - if (tainted) OBJ_TAINT(tag); -#ifdef HAVE_RUBY_ENCODING_H - PSYCH_TRANSCODE(tag, encoding, internal_enc); -#endif - } - - implicit = - event.data.sequence_start.implicit == 0 ? Qfalse : Qtrue; - - style = INT2NUM((long)event.data.sequence_start.style); - - args[0] = handler; - args[1] = anchor; - args[2] = tag; - args[3] = implicit; - args[4] = style; - - rb_protect(protected_start_sequence, (VALUE)args, &state); - } - break; - case YAML_SEQUENCE_END_EVENT: - rb_protect(protected_end_sequence, handler, &state); - break; - case YAML_MAPPING_START_EVENT: - { - VALUE args[5]; - VALUE anchor = Qnil; - VALUE tag = Qnil; - VALUE implicit, style; - if(event.data.mapping_start.anchor) { - anchor = rb_str_new2((const char *)event.data.mapping_start.anchor); - if (tainted) OBJ_TAINT(anchor); -#ifdef HAVE_RUBY_ENCODING_H - PSYCH_TRANSCODE(anchor, encoding, internal_enc); -#endif - } - - if(event.data.mapping_start.tag) { - tag = rb_str_new2((const char *)event.data.mapping_start.tag); - if (tainted) OBJ_TAINT(tag); -#ifdef HAVE_RUBY_ENCODING_H - PSYCH_TRANSCODE(tag, encoding, internal_enc); -#endif - } - - implicit = - event.data.mapping_start.implicit == 0 ? Qfalse : Qtrue; - - style = INT2NUM((long)event.data.mapping_start.style); - - args[0] = handler; - args[1] = anchor; - args[2] = tag; - args[3] = implicit; - args[4] = style; - - rb_protect(protected_start_mapping, (VALUE)args, &state); - } - break; - case YAML_MAPPING_END_EVENT: - rb_protect(protected_end_mapping, handler, &state); - break; - case YAML_NO_EVENT: - rb_protect(protected_empty, handler, &state); - break; - case YAML_STREAM_END_EVENT: - rb_protect(protected_end_stream, handler, &state); - done = 1; - break; - } - yaml_event_delete(&event); - if (state) rb_jump_tag(state); - } - - return self; -} - -/* - * call-seq: - * parser.mark # => #<Psych::Parser::Mark> - * - * Returns a Psych::Parser::Mark object that contains line, column, and index - * information. - */ -static VALUE mark(VALUE self) -{ - VALUE mark_klass; - VALUE args[3]; - yaml_parser_t * parser; - - TypedData_Get_Struct(self, yaml_parser_t, &psych_parser_type, parser); - mark_klass = rb_const_get_at(cPsychParser, rb_intern("Mark")); - args[0] = INT2NUM(parser->mark.index); - args[1] = INT2NUM(parser->mark.line); - args[2] = INT2NUM(parser->mark.column); - - return rb_class_new_instance(3, args, mark_klass); -} - -void Init_psych_parser(void) -{ -#if 0 - mPsych = rb_define_module("Psych"); -#endif - - cPsychParser = rb_define_class_under(mPsych, "Parser", rb_cObject); - rb_define_alloc_func(cPsychParser, allocate); - - /* Any encoding: Let the parser choose the encoding */ - rb_define_const(cPsychParser, "ANY", INT2NUM(YAML_ANY_ENCODING)); - - /* UTF-8 Encoding */ - rb_define_const(cPsychParser, "UTF8", INT2NUM(YAML_UTF8_ENCODING)); - - /* UTF-16-LE Encoding with BOM */ - rb_define_const(cPsychParser, "UTF16LE", INT2NUM(YAML_UTF16LE_ENCODING)); - - /* UTF-16-BE Encoding with BOM */ - rb_define_const(cPsychParser, "UTF16BE", INT2NUM(YAML_UTF16BE_ENCODING)); - - rb_require("psych/syntax_error"); - ePsychSyntaxError = rb_const_get(mPsych, rb_intern("SyntaxError")); - - rb_define_method(cPsychParser, "parse", parse, -1); - rb_define_method(cPsychParser, "mark", mark, 0); - - id_read = rb_intern("read"); - id_path = rb_intern("path"); - id_empty = rb_intern("empty"); - id_start_stream = rb_intern("start_stream"); - id_end_stream = rb_intern("end_stream"); - id_start_document = rb_intern("start_document"); - id_end_document = rb_intern("end_document"); - id_alias = rb_intern("alias"); - id_scalar = rb_intern("scalar"); - id_start_sequence = rb_intern("start_sequence"); - id_end_sequence = rb_intern("end_sequence"); - id_start_mapping = rb_intern("start_mapping"); - id_end_mapping = rb_intern("end_mapping"); -} -/* vim: set noet sws=4 sw=4: */ diff --git a/ruby_2_2/ext/psych/psych_parser.h b/ruby_2_2/ext/psych/psych_parser.h deleted file mode 100644 index beb3dd0709..0000000000 --- a/ruby_2_2/ext/psych/psych_parser.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef PSYCH_PARSER_H -#define PSYCH_PARSER_H - -void Init_psych_parser(void); - -#endif diff --git a/ruby_2_2/ext/psych/psych_to_ruby.c b/ruby_2_2/ext/psych/psych_to_ruby.c deleted file mode 100644 index 3cc87a965e..0000000000 --- a/ruby_2_2/ext/psych/psych_to_ruby.c +++ /dev/null @@ -1,43 +0,0 @@ -#include <psych.h> - -VALUE cPsychVisitorsToRuby; - -/* call-seq: vis.build_exception(klass, message) - * - * Create an exception with class +klass+ and +message+ - */ -static VALUE build_exception(VALUE self, VALUE klass, VALUE mesg) -{ - VALUE e = rb_obj_alloc(klass); - - rb_iv_set(e, "mesg", mesg); - - return e; -} - -/* call-seq: vis.path2class(path) - * - * Convert +path+ string to a class - */ -static VALUE path2class(VALUE self, VALUE path) -{ -#ifdef HAVE_RUBY_ENCODING_H - return rb_path_to_class(path); -#else - return rb_path2class(StringValuePtr(path)); -#endif -} - -void Init_psych_to_ruby(void) -{ - VALUE psych = rb_define_module("Psych"); - VALUE class_loader = rb_define_class_under(psych, "ClassLoader", rb_cObject); - - VALUE visitors = rb_define_module_under(psych, "Visitors"); - VALUE visitor = rb_define_class_under(visitors, "Visitor", rb_cObject); - cPsychVisitorsToRuby = rb_define_class_under(visitors, "ToRuby", visitor); - - rb_define_private_method(cPsychVisitorsToRuby, "build_exception", build_exception, 2); - rb_define_private_method(class_loader, "path2class", path2class, 1); -} -/* vim: set noet sws=4 sw=4: */ diff --git a/ruby_2_2/ext/psych/psych_to_ruby.h b/ruby_2_2/ext/psych/psych_to_ruby.h deleted file mode 100644 index 7b8e757a45..0000000000 --- a/ruby_2_2/ext/psych/psych_to_ruby.h +++ /dev/null @@ -1,8 +0,0 @@ -#ifndef PSYCH_TO_RUBY_H -#define PSYCH_TO_RUBY_H - -#include <psych.h> - -void Init_psych_to_ruby(void); - -#endif diff --git a/ruby_2_2/ext/psych/psych_yaml_tree.c b/ruby_2_2/ext/psych/psych_yaml_tree.c deleted file mode 100644 index bcf24d2070..0000000000 --- a/ruby_2_2/ext/psych/psych_yaml_tree.c +++ /dev/null @@ -1,24 +0,0 @@ -#include <psych.h> - -VALUE cPsychVisitorsYamlTree; - -/* - * call-seq: private_iv_get(target, prop) - * - * Get the private instance variable +prop+ from +target+ - */ -static VALUE private_iv_get(VALUE self, VALUE target, VALUE prop) -{ - return rb_attr_get(target, rb_intern(StringValuePtr(prop))); -} - -void Init_psych_yaml_tree(void) -{ - VALUE psych = rb_define_module("Psych"); - VALUE visitors = rb_define_module_under(psych, "Visitors"); - VALUE visitor = rb_define_class_under(visitors, "Visitor", rb_cObject); - cPsychVisitorsYamlTree = rb_define_class_under(visitors, "YAMLTree", visitor); - - rb_define_private_method(cPsychVisitorsYamlTree, "private_iv_get", private_iv_get, 2); -} -/* vim: set noet sws=4 sw=4: */ diff --git a/ruby_2_2/ext/psych/psych_yaml_tree.h b/ruby_2_2/ext/psych/psych_yaml_tree.h deleted file mode 100644 index 4628a69d71..0000000000 --- a/ruby_2_2/ext/psych/psych_yaml_tree.h +++ /dev/null @@ -1,8 +0,0 @@ -#ifndef PSYCH_YAML_TREE_H -#define PSYCH_YAML_TREE_H - -#include <psych.h> - -void Init_psych_yaml_tree(void); - -#endif diff --git a/ruby_2_2/ext/psych/yaml/LICENSE b/ruby_2_2/ext/psych/yaml/LICENSE deleted file mode 100644 index 050ced23f6..0000000000 --- a/ruby_2_2/ext/psych/yaml/LICENSE +++ /dev/null @@ -1,19 +0,0 @@ -Copyright (c) 2006 Kirill Simonov - -Permission is hereby granted, free of charge, to any person obtaining a copy of -this software and associated documentation files (the "Software"), to deal in -the Software without restriction, including without limitation the rights to -use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies -of the Software, and to permit persons to whom the Software is furnished to do -so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in all -copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -SOFTWARE. diff --git a/ruby_2_2/ext/psych/yaml/api.c b/ruby_2_2/ext/psych/yaml/api.c deleted file mode 100644 index b1a8da0bda..0000000000 --- a/ruby_2_2/ext/psych/yaml/api.c +++ /dev/null @@ -1,1392 +0,0 @@ - -#include "yaml_private.h" - -/* - * Get the library version. - */ - -YAML_DECLARE(const char *) -yaml_get_version_string(void) -{ - return YAML_VERSION_STRING; -} - -/* - * Get the library version numbers. - */ - -YAML_DECLARE(void) -yaml_get_version(int *major, int *minor, int *patch) -{ - *major = YAML_VERSION_MAJOR; - *minor = YAML_VERSION_MINOR; - *patch = YAML_VERSION_PATCH; -} - -/* - * Allocate a dynamic memory block. - */ - -YAML_DECLARE(void *) -yaml_malloc(size_t size) -{ - return malloc(size ? size : 1); -} - -/* - * Reallocate a dynamic memory block. - */ - -YAML_DECLARE(void *) -yaml_realloc(void *ptr, size_t size) -{ - return ptr ? realloc(ptr, size ? size : 1) : malloc(size ? size : 1); -} - -/* - * Free a dynamic memory block. - */ - -YAML_DECLARE(void) -yaml_free(void *ptr) -{ - if (ptr) free(ptr); -} - -/* - * Duplicate a string. - */ - -YAML_DECLARE(yaml_char_t *) -yaml_strdup(const yaml_char_t *str) -{ - if (!str) - return NULL; - - return (yaml_char_t *)strdup((char *)str); -} - -/* - * Extend a string. - */ - -YAML_DECLARE(int) -yaml_string_extend(yaml_char_t **start, - yaml_char_t **pointer, yaml_char_t **end) -{ - yaml_char_t *new_start = yaml_realloc(*start, (*end - *start)*2); - - if (!new_start) return 0; - - memset(new_start + (*end - *start), 0, *end - *start); - - *pointer = new_start + (*pointer - *start); - *end = new_start + (*end - *start)*2; - *start = new_start; - - return 1; -} - -/* - * Append a string B to a string A. - */ - -YAML_DECLARE(int) -yaml_string_join( - yaml_char_t **a_start, yaml_char_t **a_pointer, yaml_char_t **a_end, - yaml_char_t **b_start, yaml_char_t **b_pointer, yaml_char_t **b_end) -{ - if (*b_start == *b_pointer) - return 1; - - while (*a_end - *a_pointer <= *b_pointer - *b_start) { - if (!yaml_string_extend(a_start, a_pointer, a_end)) - return 0; - } - - memcpy(*a_pointer, *b_start, *b_pointer - *b_start); - *a_pointer += *b_pointer - *b_start; - - return 1; -} - -/* - * Extend a stack. - */ - -YAML_DECLARE(int) -yaml_stack_extend(void **start, void **top, void **end) -{ - void *new_start = yaml_realloc(*start, ((char *)*end - (char *)*start)*2); - - if (!new_start) return 0; - - *top = (char *)new_start + ((char *)*top - (char *)*start); - *end = (char *)new_start + ((char *)*end - (char *)*start)*2; - *start = new_start; - - return 1; -} - -/* - * Extend or move a queue. - */ - -YAML_DECLARE(int) -yaml_queue_extend(void **start, void **head, void **tail, void **end) -{ - /* Check if we need to resize the queue. */ - - if (*start == *head && *tail == *end) { - void *new_start = yaml_realloc(*start, - ((char *)*end - (char *)*start)*2); - - if (!new_start) return 0; - - *head = (char *)new_start + ((char *)*head - (char *)*start); - *tail = (char *)new_start + ((char *)*tail - (char *)*start); - *end = (char *)new_start + ((char *)*end - (char *)*start)*2; - *start = new_start; - } - - /* Check if we need to move the queue at the beginning of the buffer. */ - - if (*tail == *end) { - if (*head != *tail) { - memmove(*start, *head, (char *)*tail - (char *)*head); - } - *tail = (char *)*tail - (char *)*head + (char *)*start; - *head = *start; - } - - return 1; -} - - -/* - * Create a new parser object. - */ - -YAML_DECLARE(int) -yaml_parser_initialize(yaml_parser_t *parser) -{ - assert(parser); /* Non-NULL parser object expected. */ - - memset(parser, 0, sizeof(yaml_parser_t)); - if (!BUFFER_INIT(parser, parser->raw_buffer, INPUT_RAW_BUFFER_SIZE)) - goto error; - if (!BUFFER_INIT(parser, parser->buffer, INPUT_BUFFER_SIZE)) - goto error; - if (!QUEUE_INIT(parser, parser->tokens, INITIAL_QUEUE_SIZE)) - goto error; - if (!STACK_INIT(parser, parser->indents, INITIAL_STACK_SIZE)) - goto error; - if (!STACK_INIT(parser, parser->simple_keys, INITIAL_STACK_SIZE)) - goto error; - if (!STACK_INIT(parser, parser->states, INITIAL_STACK_SIZE)) - goto error; - if (!STACK_INIT(parser, parser->marks, INITIAL_STACK_SIZE)) - goto error; - if (!STACK_INIT(parser, parser->tag_directives, INITIAL_STACK_SIZE)) - goto error; - - return 1; - -error: - - BUFFER_DEL(parser, parser->raw_buffer); - BUFFER_DEL(parser, parser->buffer); - QUEUE_DEL(parser, parser->tokens); - STACK_DEL(parser, parser->indents); - STACK_DEL(parser, parser->simple_keys); - STACK_DEL(parser, parser->states); - STACK_DEL(parser, parser->marks); - STACK_DEL(parser, parser->tag_directives); - - return 0; -} - -/* - * Destroy a parser object. - */ - -YAML_DECLARE(void) -yaml_parser_delete(yaml_parser_t *parser) -{ - assert(parser); /* Non-NULL parser object expected. */ - - BUFFER_DEL(parser, parser->raw_buffer); - BUFFER_DEL(parser, parser->buffer); - while (!QUEUE_EMPTY(parser, parser->tokens)) { - yaml_token_delete(&DEQUEUE(parser, parser->tokens)); - } - QUEUE_DEL(parser, parser->tokens); - STACK_DEL(parser, parser->indents); - STACK_DEL(parser, parser->simple_keys); - STACK_DEL(parser, parser->states); - STACK_DEL(parser, parser->marks); - while (!STACK_EMPTY(parser, parser->tag_directives)) { - yaml_tag_directive_t tag_directive = POP(parser, parser->tag_directives); - yaml_free(tag_directive.handle); - yaml_free(tag_directive.prefix); - } - STACK_DEL(parser, parser->tag_directives); - - memset(parser, 0, sizeof(yaml_parser_t)); -} - -/* - * String read handler. - */ - -static int -yaml_string_read_handler(void *data, unsigned char *buffer, size_t size, - size_t *size_read) -{ - yaml_parser_t *parser = data; - - if (parser->input.string.current == parser->input.string.end) { - *size_read = 0; - return 1; - } - - if (size > (size_t)(parser->input.string.end - - parser->input.string.current)) { - size = parser->input.string.end - parser->input.string.current; - } - - memcpy(buffer, parser->input.string.current, size); - parser->input.string.current += size; - *size_read = size; - return 1; -} - -/* - * File read handler. - */ - -static int -yaml_file_read_handler(void *data, unsigned char *buffer, size_t size, - size_t *size_read) -{ - yaml_parser_t *parser = data; - - *size_read = fread(buffer, 1, size, parser->input.file); - return !ferror(parser->input.file); -} - -/* - * Set a string input. - */ - -YAML_DECLARE(void) -yaml_parser_set_input_string(yaml_parser_t *parser, - const unsigned char *input, size_t size) -{ - assert(parser); /* Non-NULL parser object expected. */ - assert(!parser->read_handler); /* You can set the source only once. */ - assert(input); /* Non-NULL input string expected. */ - - parser->read_handler = yaml_string_read_handler; - parser->read_handler_data = parser; - - parser->input.string.start = input; - parser->input.string.current = input; - parser->input.string.end = input+size; -} - -/* - * Set a file input. - */ - -YAML_DECLARE(void) -yaml_parser_set_input_file(yaml_parser_t *parser, FILE *file) -{ - assert(parser); /* Non-NULL parser object expected. */ - assert(!parser->read_handler); /* You can set the source only once. */ - assert(file); /* Non-NULL file object expected. */ - - parser->read_handler = yaml_file_read_handler; - parser->read_handler_data = parser; - - parser->input.file = file; -} - -/* - * Set a generic input. - */ - -YAML_DECLARE(void) -yaml_parser_set_input(yaml_parser_t *parser, - yaml_read_handler_t *handler, void *data) -{ - assert(parser); /* Non-NULL parser object expected. */ - assert(!parser->read_handler); /* You can set the source only once. */ - assert(handler); /* Non-NULL read handler expected. */ - - parser->read_handler = handler; - parser->read_handler_data = data; -} - -/* - * Set the source encoding. - */ - -YAML_DECLARE(void) -yaml_parser_set_encoding(yaml_parser_t *parser, yaml_encoding_t encoding) -{ - assert(parser); /* Non-NULL parser object expected. */ - assert(!parser->encoding); /* Encoding is already set or detected. */ - - parser->encoding = encoding; -} - -/* - * Create a new emitter object. - */ - -YAML_DECLARE(int) -yaml_emitter_initialize(yaml_emitter_t *emitter) -{ - assert(emitter); /* Non-NULL emitter object expected. */ - - memset(emitter, 0, sizeof(yaml_emitter_t)); - if (!BUFFER_INIT(emitter, emitter->buffer, OUTPUT_BUFFER_SIZE)) - goto error; - if (!BUFFER_INIT(emitter, emitter->raw_buffer, OUTPUT_RAW_BUFFER_SIZE)) - goto error; - if (!STACK_INIT(emitter, emitter->states, INITIAL_STACK_SIZE)) - goto error; - if (!QUEUE_INIT(emitter, emitter->events, INITIAL_QUEUE_SIZE)) - goto error; - if (!STACK_INIT(emitter, emitter->indents, INITIAL_STACK_SIZE)) - goto error; - if (!STACK_INIT(emitter, emitter->tag_directives, INITIAL_STACK_SIZE)) - goto error; - - return 1; - -error: - - BUFFER_DEL(emitter, emitter->buffer); - BUFFER_DEL(emitter, emitter->raw_buffer); - STACK_DEL(emitter, emitter->states); - QUEUE_DEL(emitter, emitter->events); - STACK_DEL(emitter, emitter->indents); - STACK_DEL(emitter, emitter->tag_directives); - - return 0; -} - -/* - * Destroy an emitter object. - */ - -YAML_DECLARE(void) -yaml_emitter_delete(yaml_emitter_t *emitter) -{ - assert(emitter); /* Non-NULL emitter object expected. */ - - BUFFER_DEL(emitter, emitter->buffer); - BUFFER_DEL(emitter, emitter->raw_buffer); - STACK_DEL(emitter, emitter->states); - while (!QUEUE_EMPTY(emitter, emitter->events)) { - yaml_event_delete(&DEQUEUE(emitter, emitter->events)); - } - QUEUE_DEL(emitter, emitter->events); - STACK_DEL(emitter, emitter->indents); - while (!STACK_EMPTY(empty, emitter->tag_directives)) { - yaml_tag_directive_t tag_directive = POP(emitter, emitter->tag_directives); - yaml_free(tag_directive.handle); - yaml_free(tag_directive.prefix); - } - STACK_DEL(emitter, emitter->tag_directives); - yaml_free(emitter->anchors); - - memset(emitter, 0, sizeof(yaml_emitter_t)); -} - -/* - * String write handler. - */ - -static int -yaml_string_write_handler(void *data, unsigned char *buffer, size_t size) -{ - yaml_emitter_t *emitter = data; - - if (emitter->output.string.size - *emitter->output.string.size_written - < size) { - memcpy(emitter->output.string.buffer - + *emitter->output.string.size_written, - buffer, - emitter->output.string.size - - *emitter->output.string.size_written); - *emitter->output.string.size_written = emitter->output.string.size; - return 0; - } - - memcpy(emitter->output.string.buffer - + *emitter->output.string.size_written, buffer, size); - *emitter->output.string.size_written += size; - return 1; -} - -/* - * File write handler. - */ - -static int -yaml_file_write_handler(void *data, unsigned char *buffer, size_t size) -{ - yaml_emitter_t *emitter = data; - - return (fwrite(buffer, 1, size, emitter->output.file) == size); -} -/* - * Set a string output. - */ - -YAML_DECLARE(void) -yaml_emitter_set_output_string(yaml_emitter_t *emitter, - unsigned char *output, size_t size, size_t *size_written) -{ - assert(emitter); /* Non-NULL emitter object expected. */ - assert(!emitter->write_handler); /* You can set the output only once. */ - assert(output); /* Non-NULL output string expected. */ - - emitter->write_handler = yaml_string_write_handler; - emitter->write_handler_data = emitter; - - emitter->output.string.buffer = output; - emitter->output.string.size = size; - emitter->output.string.size_written = size_written; - *size_written = 0; -} - -/* - * Set a file output. - */ - -YAML_DECLARE(void) -yaml_emitter_set_output_file(yaml_emitter_t *emitter, FILE *file) -{ - assert(emitter); /* Non-NULL emitter object expected. */ - assert(!emitter->write_handler); /* You can set the output only once. */ - assert(file); /* Non-NULL file object expected. */ - - emitter->write_handler = yaml_file_write_handler; - emitter->write_handler_data = emitter; - - emitter->output.file = file; -} - -/* - * Set a generic output handler. - */ - -YAML_DECLARE(void) -yaml_emitter_set_output(yaml_emitter_t *emitter, - yaml_write_handler_t *handler, void *data) -{ - assert(emitter); /* Non-NULL emitter object expected. */ - assert(!emitter->write_handler); /* You can set the output only once. */ - assert(handler); /* Non-NULL handler object expected. */ - - emitter->write_handler = handler; - emitter->write_handler_data = data; -} - -/* - * Set the output encoding. - */ - -YAML_DECLARE(void) -yaml_emitter_set_encoding(yaml_emitter_t *emitter, yaml_encoding_t encoding) -{ - assert(emitter); /* Non-NULL emitter object expected. */ - assert(!emitter->encoding); /* You can set encoding only once. */ - - emitter->encoding = encoding; -} - -/* - * Set the canonical output style. - */ - -YAML_DECLARE(void) -yaml_emitter_set_canonical(yaml_emitter_t *emitter, int canonical) -{ - assert(emitter); /* Non-NULL emitter object expected. */ - - emitter->canonical = (canonical != 0); -} - -/* - * Set the indentation increment. - */ - -YAML_DECLARE(void) -yaml_emitter_set_indent(yaml_emitter_t *emitter, int indent) -{ - assert(emitter); /* Non-NULL emitter object expected. */ - - emitter->best_indent = (1 < indent && indent < 10) ? indent : 2; -} - -/* - * Set the preferred line width. - */ - -YAML_DECLARE(void) -yaml_emitter_set_width(yaml_emitter_t *emitter, int width) -{ - assert(emitter); /* Non-NULL emitter object expected. */ - - emitter->best_width = (width >= 0) ? width : -1; -} - -/* - * Set if unescaped non-ASCII characters are allowed. - */ - -YAML_DECLARE(void) -yaml_emitter_set_unicode(yaml_emitter_t *emitter, int unicode) -{ - assert(emitter); /* Non-NULL emitter object expected. */ - - emitter->unicode = (unicode != 0); -} - -/* - * Set the preferred line break character. - */ - -YAML_DECLARE(void) -yaml_emitter_set_break(yaml_emitter_t *emitter, yaml_break_t line_break) -{ - assert(emitter); /* Non-NULL emitter object expected. */ - - emitter->line_break = line_break; -} - -/* - * Destroy a token object. - */ - -YAML_DECLARE(void) -yaml_token_delete(yaml_token_t *token) -{ - assert(token); /* Non-NULL token object expected. */ - - switch (token->type) - { - case YAML_TAG_DIRECTIVE_TOKEN: - yaml_free(token->data.tag_directive.handle); - yaml_free(token->data.tag_directive.prefix); - break; - - case YAML_ALIAS_TOKEN: - yaml_free(token->data.alias.value); - break; - - case YAML_ANCHOR_TOKEN: - yaml_free(token->data.anchor.value); - break; - - case YAML_TAG_TOKEN: - yaml_free(token->data.tag.handle); - yaml_free(token->data.tag.suffix); - break; - - case YAML_SCALAR_TOKEN: - yaml_free(token->data.scalar.value); - break; - - default: - break; - } - - memset(token, 0, sizeof(yaml_token_t)); -} - -/* - * Check if a string is a valid UTF-8 sequence. - * - * Check 'reader.c' for more details on UTF-8 encoding. - */ - -static int -yaml_check_utf8(yaml_char_t *start, size_t length) -{ - yaml_char_t *end = start+length; - yaml_char_t *pointer = start; - - while (pointer < end) { - unsigned char octet; - unsigned int width; - unsigned int value; - size_t k; - - octet = pointer[0]; - width = (octet & 0x80) == 0x00 ? 1 : - (octet & 0xE0) == 0xC0 ? 2 : - (octet & 0xF0) == 0xE0 ? 3 : - (octet & 0xF8) == 0xF0 ? 4 : 0; - value = (octet & 0x80) == 0x00 ? octet & 0x7F : - (octet & 0xE0) == 0xC0 ? octet & 0x1F : - (octet & 0xF0) == 0xE0 ? octet & 0x0F : - (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0; - if (!width) return 0; - if (pointer+width > end) return 0; - for (k = 1; k < width; k ++) { - octet = pointer[k]; - if ((octet & 0xC0) != 0x80) return 0; - value = (value << 6) + (octet & 0x3F); - } - if (!((width == 1) || - (width == 2 && value >= 0x80) || - (width == 3 && value >= 0x800) || - (width == 4 && value >= 0x10000))) return 0; - - pointer += width; - } - - return 1; -} - -/* - * Create STREAM-START. - */ - -YAML_DECLARE(int) -yaml_stream_start_event_initialize(yaml_event_t *event, - yaml_encoding_t encoding) -{ - yaml_mark_t mark = { 0, 0, 0 }; - - assert(event); /* Non-NULL event object is expected. */ - - STREAM_START_EVENT_INIT(*event, encoding, mark, mark); - - return 1; -} - -/* - * Create STREAM-END. - */ - -YAML_DECLARE(int) -yaml_stream_end_event_initialize(yaml_event_t *event) -{ - yaml_mark_t mark = { 0, 0, 0 }; - - assert(event); /* Non-NULL event object is expected. */ - - STREAM_END_EVENT_INIT(*event, mark, mark); - - return 1; -} - -/* - * Create DOCUMENT-START. - */ - -YAML_DECLARE(int) -yaml_document_start_event_initialize(yaml_event_t *event, - yaml_version_directive_t *version_directive, - yaml_tag_directive_t *tag_directives_start, - yaml_tag_directive_t *tag_directives_end, - int implicit) -{ - struct { - yaml_error_type_t error; - } context; - yaml_mark_t mark = { 0, 0, 0 }; - yaml_version_directive_t *version_directive_copy = NULL; - struct { - yaml_tag_directive_t *start; - yaml_tag_directive_t *end; - yaml_tag_directive_t *top; - } tag_directives_copy = { NULL, NULL, NULL }; - yaml_tag_directive_t value = { NULL, NULL }; - - assert(event); /* Non-NULL event object is expected. */ - assert((tag_directives_start && tag_directives_end) || - (tag_directives_start == tag_directives_end)); - /* Valid tag directives are expected. */ - - if (version_directive) { - version_directive_copy = yaml_malloc(sizeof(yaml_version_directive_t)); - if (!version_directive_copy) goto error; - version_directive_copy->major = version_directive->major; - version_directive_copy->minor = version_directive->minor; - } - - if (tag_directives_start != tag_directives_end) { - yaml_tag_directive_t *tag_directive; - if (!STACK_INIT(&context, tag_directives_copy, INITIAL_STACK_SIZE)) - goto error; - for (tag_directive = tag_directives_start; - tag_directive != tag_directives_end; tag_directive ++) { - assert(tag_directive->handle); - assert(tag_directive->prefix); - if (!yaml_check_utf8(tag_directive->handle, - strlen((char *)tag_directive->handle))) - goto error; - if (!yaml_check_utf8(tag_directive->prefix, - strlen((char *)tag_directive->prefix))) - goto error; - value.handle = yaml_strdup(tag_directive->handle); - value.prefix = yaml_strdup(tag_directive->prefix); - if (!value.handle || !value.prefix) goto error; - if (!PUSH(&context, tag_directives_copy, value)) - goto error; - value.handle = NULL; - value.prefix = NULL; - } - } - - DOCUMENT_START_EVENT_INIT(*event, version_directive_copy, - tag_directives_copy.start, tag_directives_copy.top, - implicit, mark, mark); - - return 1; - -error: - yaml_free(version_directive_copy); - while (!STACK_EMPTY(context, tag_directives_copy)) { - yaml_tag_directive_t value = POP(context, tag_directives_copy); - yaml_free(value.handle); - yaml_free(value.prefix); - } - STACK_DEL(context, tag_directives_copy); - yaml_free(value.handle); - yaml_free(value.prefix); - - return 0; -} - -/* - * Create DOCUMENT-END. - */ - -YAML_DECLARE(int) -yaml_document_end_event_initialize(yaml_event_t *event, int implicit) -{ - yaml_mark_t mark = { 0, 0, 0 }; - - assert(event); /* Non-NULL emitter object is expected. */ - - DOCUMENT_END_EVENT_INIT(*event, implicit, mark, mark); - - return 1; -} - -/* - * Create ALIAS. - */ - -YAML_DECLARE(int) -yaml_alias_event_initialize(yaml_event_t *event, yaml_char_t *anchor) -{ - yaml_mark_t mark = { 0, 0, 0 }; - yaml_char_t *anchor_copy = NULL; - - assert(event); /* Non-NULL event object is expected. */ - assert(anchor); /* Non-NULL anchor is expected. */ - - if (!yaml_check_utf8(anchor, strlen((char *)anchor))) return 0; - - anchor_copy = yaml_strdup(anchor); - if (!anchor_copy) - return 0; - - ALIAS_EVENT_INIT(*event, anchor_copy, mark, mark); - - return 1; -} - -/* - * Create SCALAR. - */ - -YAML_DECLARE(int) -yaml_scalar_event_initialize(yaml_event_t *event, - yaml_char_t *anchor, yaml_char_t *tag, - yaml_char_t *value, int length, - int plain_implicit, int quoted_implicit, - yaml_scalar_style_t style) -{ - yaml_mark_t mark = { 0, 0, 0 }; - yaml_char_t *anchor_copy = NULL; - yaml_char_t *tag_copy = NULL; - yaml_char_t *value_copy = NULL; - - assert(event); /* Non-NULL event object is expected. */ - assert(value); /* Non-NULL anchor is expected. */ - - if (anchor) { - if (!yaml_check_utf8(anchor, strlen((char *)anchor))) goto error; - anchor_copy = yaml_strdup(anchor); - if (!anchor_copy) goto error; - } - - if (tag) { - if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error; - tag_copy = yaml_strdup(tag); - if (!tag_copy) goto error; - } - - if (length < 0) { - length = strlen((char *)value); - } - - if (!yaml_check_utf8(value, length)) goto error; - value_copy = yaml_malloc(length+1); - if (!value_copy) goto error; - memcpy(value_copy, value, length); - value_copy[length] = '\0'; - - SCALAR_EVENT_INIT(*event, anchor_copy, tag_copy, value_copy, length, - plain_implicit, quoted_implicit, style, mark, mark); - - return 1; - -error: - yaml_free(anchor_copy); - yaml_free(tag_copy); - yaml_free(value_copy); - - return 0; -} - -/* - * Create SEQUENCE-START. - */ - -YAML_DECLARE(int) -yaml_sequence_start_event_initialize(yaml_event_t *event, - yaml_char_t *anchor, yaml_char_t *tag, int implicit, - yaml_sequence_style_t style) -{ - yaml_mark_t mark = { 0, 0, 0 }; - yaml_char_t *anchor_copy = NULL; - yaml_char_t *tag_copy = NULL; - - assert(event); /* Non-NULL event object is expected. */ - - if (anchor) { - if (!yaml_check_utf8(anchor, strlen((char *)anchor))) goto error; - anchor_copy = yaml_strdup(anchor); - if (!anchor_copy) goto error; - } - - if (tag) { - if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error; - tag_copy = yaml_strdup(tag); - if (!tag_copy) goto error; - } - - SEQUENCE_START_EVENT_INIT(*event, anchor_copy, tag_copy, - implicit, style, mark, mark); - - return 1; - -error: - yaml_free(anchor_copy); - yaml_free(tag_copy); - - return 0; -} - -/* - * Create SEQUENCE-END. - */ - -YAML_DECLARE(int) -yaml_sequence_end_event_initialize(yaml_event_t *event) -{ - yaml_mark_t mark = { 0, 0, 0 }; - - assert(event); /* Non-NULL event object is expected. */ - - SEQUENCE_END_EVENT_INIT(*event, mark, mark); - - return 1; -} - -/* - * Create MAPPING-START. - */ - -YAML_DECLARE(int) -yaml_mapping_start_event_initialize(yaml_event_t *event, - yaml_char_t *anchor, yaml_char_t *tag, int implicit, - yaml_mapping_style_t style) -{ - yaml_mark_t mark = { 0, 0, 0 }; - yaml_char_t *anchor_copy = NULL; - yaml_char_t *tag_copy = NULL; - - assert(event); /* Non-NULL event object is expected. */ - - if (anchor) { - if (!yaml_check_utf8(anchor, strlen((char *)anchor))) goto error; - anchor_copy = yaml_strdup(anchor); - if (!anchor_copy) goto error; - } - - if (tag) { - if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error; - tag_copy = yaml_strdup(tag); - if (!tag_copy) goto error; - } - - MAPPING_START_EVENT_INIT(*event, anchor_copy, tag_copy, - implicit, style, mark, mark); - - return 1; - -error: - yaml_free(anchor_copy); - yaml_free(tag_copy); - - return 0; -} - -/* - * Create MAPPING-END. - */ - -YAML_DECLARE(int) -yaml_mapping_end_event_initialize(yaml_event_t *event) -{ - yaml_mark_t mark = { 0, 0, 0 }; - - assert(event); /* Non-NULL event object is expected. */ - - MAPPING_END_EVENT_INIT(*event, mark, mark); - - return 1; -} - -/* - * Destroy an event object. - */ - -YAML_DECLARE(void) -yaml_event_delete(yaml_event_t *event) -{ - yaml_tag_directive_t *tag_directive; - - assert(event); /* Non-NULL event object expected. */ - - switch (event->type) - { - case YAML_DOCUMENT_START_EVENT: - yaml_free(event->data.document_start.version_directive); - for (tag_directive = event->data.document_start.tag_directives.start; - tag_directive != event->data.document_start.tag_directives.end; - tag_directive++) { - yaml_free(tag_directive->handle); - yaml_free(tag_directive->prefix); - } - yaml_free(event->data.document_start.tag_directives.start); - break; - - case YAML_ALIAS_EVENT: - yaml_free(event->data.alias.anchor); - break; - - case YAML_SCALAR_EVENT: - yaml_free(event->data.scalar.anchor); - yaml_free(event->data.scalar.tag); - yaml_free(event->data.scalar.value); - break; - - case YAML_SEQUENCE_START_EVENT: - yaml_free(event->data.sequence_start.anchor); - yaml_free(event->data.sequence_start.tag); - break; - - case YAML_MAPPING_START_EVENT: - yaml_free(event->data.mapping_start.anchor); - yaml_free(event->data.mapping_start.tag); - break; - - default: - break; - } - - memset(event, 0, sizeof(yaml_event_t)); -} - -/* - * Create a document object. - */ - -YAML_DECLARE(int) -yaml_document_initialize(yaml_document_t *document, - yaml_version_directive_t *version_directive, - yaml_tag_directive_t *tag_directives_start, - yaml_tag_directive_t *tag_directives_end, - int start_implicit, int end_implicit) -{ - struct { - yaml_error_type_t error; - } context; - struct { - yaml_node_t *start; - yaml_node_t *end; - yaml_node_t *top; - } nodes = { NULL, NULL, NULL }; - yaml_version_directive_t *version_directive_copy = NULL; - struct { - yaml_tag_directive_t *start; - yaml_tag_directive_t *end; - yaml_tag_directive_t *top; - } tag_directives_copy = { NULL, NULL, NULL }; - yaml_tag_directive_t value = { NULL, NULL }; - yaml_mark_t mark = { 0, 0, 0 }; - - assert(document); /* Non-NULL document object is expected. */ - assert((tag_directives_start && tag_directives_end) || - (tag_directives_start == tag_directives_end)); - /* Valid tag directives are expected. */ - - if (!STACK_INIT(&context, nodes, INITIAL_STACK_SIZE)) goto error; - - if (version_directive) { - version_directive_copy = yaml_malloc(sizeof(yaml_version_directive_t)); - if (!version_directive_copy) goto error; - version_directive_copy->major = version_directive->major; - version_directive_copy->minor = version_directive->minor; - } - - if (tag_directives_start != tag_directives_end) { - yaml_tag_directive_t *tag_directive; - if (!STACK_INIT(&context, tag_directives_copy, INITIAL_STACK_SIZE)) - goto error; - for (tag_directive = tag_directives_start; - tag_directive != tag_directives_end; tag_directive ++) { - assert(tag_directive->handle); - assert(tag_directive->prefix); - if (!yaml_check_utf8(tag_directive->handle, - strlen((char *)tag_directive->handle))) - goto error; - if (!yaml_check_utf8(tag_directive->prefix, - strlen((char *)tag_directive->prefix))) - goto error; - value.handle = yaml_strdup(tag_directive->handle); - value.prefix = yaml_strdup(tag_directive->prefix); - if (!value.handle || !value.prefix) goto error; - if (!PUSH(&context, tag_directives_copy, value)) - goto error; - value.handle = NULL; - value.prefix = NULL; - } - } - - DOCUMENT_INIT(*document, nodes.start, nodes.end, version_directive_copy, - tag_directives_copy.start, tag_directives_copy.top, - start_implicit, end_implicit, mark, mark); - - return 1; - -error: - STACK_DEL(&context, nodes); - yaml_free(version_directive_copy); - while (!STACK_EMPTY(&context, tag_directives_copy)) { - yaml_tag_directive_t value = POP(&context, tag_directives_copy); - yaml_free(value.handle); - yaml_free(value.prefix); - } - STACK_DEL(&context, tag_directives_copy); - yaml_free(value.handle); - yaml_free(value.prefix); - - return 0; -} - -/* - * Destroy a document object. - */ - -YAML_DECLARE(void) -yaml_document_delete(yaml_document_t *document) -{ - struct { - yaml_error_type_t error; - } context; - yaml_tag_directive_t *tag_directive; - - context.error = YAML_NO_ERROR; /* Eliminate a compliler warning. */ - - assert(document); /* Non-NULL document object is expected. */ - - while (!STACK_EMPTY(&context, document->nodes)) { - yaml_node_t node = POP(&context, document->nodes); - yaml_free(node.tag); - switch (node.type) { - case YAML_SCALAR_NODE: - yaml_free(node.data.scalar.value); - break; - case YAML_SEQUENCE_NODE: - STACK_DEL(&context, node.data.sequence.items); - break; - case YAML_MAPPING_NODE: - STACK_DEL(&context, node.data.mapping.pairs); - break; - default: - assert(0); /* Should not happen. */ - } - } - STACK_DEL(&context, document->nodes); - - yaml_free(document->version_directive); - for (tag_directive = document->tag_directives.start; - tag_directive != document->tag_directives.end; - tag_directive++) { - yaml_free(tag_directive->handle); - yaml_free(tag_directive->prefix); - } - yaml_free(document->tag_directives.start); - - memset(document, 0, sizeof(yaml_document_t)); -} - -/** - * Get a document node. - */ - -YAML_DECLARE(yaml_node_t *) -yaml_document_get_node(yaml_document_t *document, int index) -{ - assert(document); /* Non-NULL document object is expected. */ - - if (index > 0 && document->nodes.start + index <= document->nodes.top) { - return document->nodes.start + index - 1; - } - return NULL; -} - -/** - * Get the root object. - */ - -YAML_DECLARE(yaml_node_t *) -yaml_document_get_root_node(yaml_document_t *document) -{ - assert(document); /* Non-NULL document object is expected. */ - - if (document->nodes.top != document->nodes.start) { - return document->nodes.start; - } - return NULL; -} - -/* - * Add a scalar node to a document. - */ - -YAML_DECLARE(int) -yaml_document_add_scalar(yaml_document_t *document, - yaml_char_t *tag, yaml_char_t *value, int length, - yaml_scalar_style_t style) -{ - struct { - yaml_error_type_t error; - } context; - yaml_mark_t mark = { 0, 0, 0 }; - yaml_char_t *tag_copy = NULL; - yaml_char_t *value_copy = NULL; - yaml_node_t node; - - assert(document); /* Non-NULL document object is expected. */ - assert(value); /* Non-NULL value is expected. */ - - if (!tag) { - tag = (yaml_char_t *)YAML_DEFAULT_SCALAR_TAG; - } - - if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error; - tag_copy = yaml_strdup(tag); - if (!tag_copy) goto error; - - if (length < 0) { - length = strlen((char *)value); - } - - if (!yaml_check_utf8(value, length)) goto error; - value_copy = yaml_malloc(length+1); - if (!value_copy) goto error; - memcpy(value_copy, value, length); - value_copy[length] = '\0'; - - SCALAR_NODE_INIT(node, tag_copy, value_copy, length, style, mark, mark); - if (!PUSH(&context, document->nodes, node)) goto error; - - return document->nodes.top - document->nodes.start; - -error: - yaml_free(tag_copy); - yaml_free(value_copy); - - return 0; -} - -/* - * Add a sequence node to a document. - */ - -YAML_DECLARE(int) -yaml_document_add_sequence(yaml_document_t *document, - yaml_char_t *tag, yaml_sequence_style_t style) -{ - struct { - yaml_error_type_t error; - } context; - yaml_mark_t mark = { 0, 0, 0 }; - yaml_char_t *tag_copy = NULL; - struct { - yaml_node_item_t *start; - yaml_node_item_t *end; - yaml_node_item_t *top; - } items = { NULL, NULL, NULL }; - yaml_node_t node; - - assert(document); /* Non-NULL document object is expected. */ - - if (!tag) { - tag = (yaml_char_t *)YAML_DEFAULT_SEQUENCE_TAG; - } - - if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error; - tag_copy = yaml_strdup(tag); - if (!tag_copy) goto error; - - if (!STACK_INIT(&context, items, INITIAL_STACK_SIZE)) goto error; - - SEQUENCE_NODE_INIT(node, tag_copy, items.start, items.end, - style, mark, mark); - if (!PUSH(&context, document->nodes, node)) goto error; - - return document->nodes.top - document->nodes.start; - -error: - STACK_DEL(&context, items); - yaml_free(tag_copy); - - return 0; -} - -/* - * Add a mapping node to a document. - */ - -YAML_DECLARE(int) -yaml_document_add_mapping(yaml_document_t *document, - yaml_char_t *tag, yaml_mapping_style_t style) -{ - struct { - yaml_error_type_t error; - } context; - yaml_mark_t mark = { 0, 0, 0 }; - yaml_char_t *tag_copy = NULL; - struct { - yaml_node_pair_t *start; - yaml_node_pair_t *end; - yaml_node_pair_t *top; - } pairs = { NULL, NULL, NULL }; - yaml_node_t node; - - assert(document); /* Non-NULL document object is expected. */ - - if (!tag) { - tag = (yaml_char_t *)YAML_DEFAULT_MAPPING_TAG; - } - - if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error; - tag_copy = yaml_strdup(tag); - if (!tag_copy) goto error; - - if (!STACK_INIT(&context, pairs, INITIAL_STACK_SIZE)) goto error; - - MAPPING_NODE_INIT(node, tag_copy, pairs.start, pairs.end, - style, mark, mark); - if (!PUSH(&context, document->nodes, node)) goto error; - - return document->nodes.top - document->nodes.start; - -error: - STACK_DEL(&context, pairs); - yaml_free(tag_copy); - - return 0; -} - -/* - * Append an item to a sequence node. - */ - -YAML_DECLARE(int) -yaml_document_append_sequence_item(yaml_document_t *document, - int sequence, int item) -{ - struct { - yaml_error_type_t error; - } context; - - assert(document); /* Non-NULL document is required. */ - assert(sequence > 0 - && document->nodes.start + sequence <= document->nodes.top); - /* Valid sequence id is required. */ - assert(document->nodes.start[sequence-1].type == YAML_SEQUENCE_NODE); - /* A sequence node is required. */ - assert(item > 0 && document->nodes.start + item <= document->nodes.top); - /* Valid item id is required. */ - - if (!PUSH(&context, - document->nodes.start[sequence-1].data.sequence.items, item)) - return 0; - - return 1; -} - -/* - * Append a pair of a key and a value to a mapping node. - */ - -YAML_DECLARE(int) -yaml_document_append_mapping_pair(yaml_document_t *document, - int mapping, int key, int value) -{ - struct { - yaml_error_type_t error; - } context; - - yaml_node_pair_t pair; - - assert(document); /* Non-NULL document is required. */ - assert(mapping > 0 - && document->nodes.start + mapping <= document->nodes.top); - /* Valid mapping id is required. */ - assert(document->nodes.start[mapping-1].type == YAML_MAPPING_NODE); - /* A mapping node is required. */ - assert(key > 0 && document->nodes.start + key <= document->nodes.top); - /* Valid key id is required. */ - assert(value > 0 && document->nodes.start + value <= document->nodes.top); - /* Valid value id is required. */ - - pair.key = key; - pair.value = value; - - if (!PUSH(&context, - document->nodes.start[mapping-1].data.mapping.pairs, pair)) - return 0; - - return 1; -} - - diff --git a/ruby_2_2/ext/psych/yaml/config.h b/ruby_2_2/ext/psych/yaml/config.h deleted file mode 100644 index 79e8501f4f..0000000000 --- a/ruby_2_2/ext/psych/yaml/config.h +++ /dev/null @@ -1,10 +0,0 @@ -#define PACKAGE_NAME "yaml" -#define PACKAGE_TARNAME "yaml" -#define PACKAGE_VERSION "0.1.7" -#define PACKAGE_STRING "yaml 0.1.7" -#define PACKAGE_BUGREPORT "https://github.com/yaml/libyaml/issues" -#define PACKAGE_URL "https://github.com/yaml/libyaml" -#define YAML_VERSION_MAJOR 0 -#define YAML_VERSION_MINOR 1 -#define YAML_VERSION_PATCH 7 -#define YAML_VERSION_STRING "0.1.7" diff --git a/ruby_2_2/ext/psych/yaml/dumper.c b/ruby_2_2/ext/psych/yaml/dumper.c deleted file mode 100644 index 203c6a709c..0000000000 --- a/ruby_2_2/ext/psych/yaml/dumper.c +++ /dev/null @@ -1,394 +0,0 @@ - -#include "yaml_private.h" - -/* - * API functions. - */ - -YAML_DECLARE(int) -yaml_emitter_open(yaml_emitter_t *emitter); - -YAML_DECLARE(int) -yaml_emitter_close(yaml_emitter_t *emitter); - -YAML_DECLARE(int) -yaml_emitter_dump(yaml_emitter_t *emitter, yaml_document_t *document); - -/* - * Clean up functions. - */ - -static void -yaml_emitter_delete_document_and_anchors(yaml_emitter_t *emitter); - -/* - * Anchor functions. - */ - -static void -yaml_emitter_anchor_node(yaml_emitter_t *emitter, int index); - -static yaml_char_t * -yaml_emitter_generate_anchor(yaml_emitter_t *emitter, int anchor_id); - - -/* - * Serialize functions. - */ - -static int -yaml_emitter_dump_node(yaml_emitter_t *emitter, int index); - -static int -yaml_emitter_dump_alias(yaml_emitter_t *emitter, yaml_char_t *anchor); - -static int -yaml_emitter_dump_scalar(yaml_emitter_t *emitter, yaml_node_t *node, - yaml_char_t *anchor); - -static int -yaml_emitter_dump_sequence(yaml_emitter_t *emitter, yaml_node_t *node, - yaml_char_t *anchor); - -static int -yaml_emitter_dump_mapping(yaml_emitter_t *emitter, yaml_node_t *node, - yaml_char_t *anchor); - -/* - * Issue a STREAM-START event. - */ - -YAML_DECLARE(int) -yaml_emitter_open(yaml_emitter_t *emitter) -{ - yaml_event_t event; - yaml_mark_t mark = { 0, 0, 0 }; - - assert(emitter); /* Non-NULL emitter object is required. */ - assert(!emitter->opened); /* Emitter should not be opened yet. */ - - STREAM_START_EVENT_INIT(event, YAML_ANY_ENCODING, mark, mark); - - if (!yaml_emitter_emit(emitter, &event)) { - return 0; - } - - emitter->opened = 1; - - return 1; -} - -/* - * Issue a STREAM-END event. - */ - -YAML_DECLARE(int) -yaml_emitter_close(yaml_emitter_t *emitter) -{ - yaml_event_t event; - yaml_mark_t mark = { 0, 0, 0 }; - - assert(emitter); /* Non-NULL emitter object is required. */ - assert(emitter->opened); /* Emitter should be opened. */ - - if (emitter->closed) return 1; - - STREAM_END_EVENT_INIT(event, mark, mark); - - if (!yaml_emitter_emit(emitter, &event)) { - return 0; - } - - emitter->closed = 1; - - return 1; -} - -/* - * Dump a YAML document. - */ - -YAML_DECLARE(int) -yaml_emitter_dump(yaml_emitter_t *emitter, yaml_document_t *document) -{ - yaml_event_t event; - yaml_mark_t mark = { 0, 0, 0 }; - - assert(emitter); /* Non-NULL emitter object is required. */ - assert(document); /* Non-NULL emitter object is expected. */ - - emitter->document = document; - - if (!emitter->opened) { - if (!yaml_emitter_open(emitter)) goto error; - } - - if (STACK_EMPTY(emitter, document->nodes)) { - if (!yaml_emitter_close(emitter)) goto error; - yaml_emitter_delete_document_and_anchors(emitter); - return 1; - } - - assert(emitter->opened); /* Emitter should be opened. */ - - emitter->anchors = yaml_malloc(sizeof(*(emitter->anchors)) - * (document->nodes.top - document->nodes.start)); - if (!emitter->anchors) goto error; - memset(emitter->anchors, 0, sizeof(*(emitter->anchors)) - * (document->nodes.top - document->nodes.start)); - - DOCUMENT_START_EVENT_INIT(event, document->version_directive, - document->tag_directives.start, document->tag_directives.end, - document->start_implicit, mark, mark); - if (!yaml_emitter_emit(emitter, &event)) goto error; - - yaml_emitter_anchor_node(emitter, 1); - if (!yaml_emitter_dump_node(emitter, 1)) goto error; - - DOCUMENT_END_EVENT_INIT(event, document->end_implicit, mark, mark); - if (!yaml_emitter_emit(emitter, &event)) goto error; - - yaml_emitter_delete_document_and_anchors(emitter); - - return 1; - -error: - - yaml_emitter_delete_document_and_anchors(emitter); - - return 0; -} - -/* - * Clean up the emitter object after a document is dumped. - */ - -static void -yaml_emitter_delete_document_and_anchors(yaml_emitter_t *emitter) -{ - int index; - - if (!emitter->anchors) { - yaml_document_delete(emitter->document); - emitter->document = NULL; - return; - } - - for (index = 0; emitter->document->nodes.start + index - < emitter->document->nodes.top; index ++) { - yaml_node_t node = emitter->document->nodes.start[index]; - if (!emitter->anchors[index].serialized) { - yaml_free(node.tag); - if (node.type == YAML_SCALAR_NODE) { - yaml_free(node.data.scalar.value); - } - } - if (node.type == YAML_SEQUENCE_NODE) { - STACK_DEL(emitter, node.data.sequence.items); - } - if (node.type == YAML_MAPPING_NODE) { - STACK_DEL(emitter, node.data.mapping.pairs); - } - } - - STACK_DEL(emitter, emitter->document->nodes); - yaml_free(emitter->anchors); - - emitter->anchors = NULL; - emitter->last_anchor_id = 0; - emitter->document = NULL; -} - -/* - * Check the references of a node and assign the anchor id if needed. - */ - -static void -yaml_emitter_anchor_node(yaml_emitter_t *emitter, int index) -{ - yaml_node_t *node = emitter->document->nodes.start + index - 1; - yaml_node_item_t *item; - yaml_node_pair_t *pair; - - emitter->anchors[index-1].references ++; - - if (emitter->anchors[index-1].references == 1) { - switch (node->type) { - case YAML_SEQUENCE_NODE: - for (item = node->data.sequence.items.start; - item < node->data.sequence.items.top; item ++) { - yaml_emitter_anchor_node(emitter, *item); - } - break; - case YAML_MAPPING_NODE: - for (pair = node->data.mapping.pairs.start; - pair < node->data.mapping.pairs.top; pair ++) { - yaml_emitter_anchor_node(emitter, pair->key); - yaml_emitter_anchor_node(emitter, pair->value); - } - break; - default: - break; - } - } - - else if (emitter->anchors[index-1].references == 2) { - emitter->anchors[index-1].anchor = (++ emitter->last_anchor_id); - } -} - -/* - * Generate a textual representation for an anchor. - */ - -#define ANCHOR_TEMPLATE "id%03d" -#define ANCHOR_TEMPLATE_LENGTH 16 - -static yaml_char_t * -yaml_emitter_generate_anchor(yaml_emitter_t *emitter, int anchor_id) -{ - yaml_char_t *anchor = yaml_malloc(ANCHOR_TEMPLATE_LENGTH); - - if (!anchor) return NULL; - - sprintf((char *)anchor, ANCHOR_TEMPLATE, anchor_id); - - return anchor; -} - -/* - * Serialize a node. - */ - -static int -yaml_emitter_dump_node(yaml_emitter_t *emitter, int index) -{ - yaml_node_t *node = emitter->document->nodes.start + index - 1; - int anchor_id = emitter->anchors[index-1].anchor; - yaml_char_t *anchor = NULL; - - if (anchor_id) { - anchor = yaml_emitter_generate_anchor(emitter, anchor_id); - if (!anchor) return 0; - } - - if (emitter->anchors[index-1].serialized) { - return yaml_emitter_dump_alias(emitter, anchor); - } - - emitter->anchors[index-1].serialized = 1; - - switch (node->type) { - case YAML_SCALAR_NODE: - return yaml_emitter_dump_scalar(emitter, node, anchor); - case YAML_SEQUENCE_NODE: - return yaml_emitter_dump_sequence(emitter, node, anchor); - case YAML_MAPPING_NODE: - return yaml_emitter_dump_mapping(emitter, node, anchor); - default: - assert(0); /* Could not happen. */ - break; - } - - return 0; /* Could not happen. */ -} - -/* - * Serialize an alias. - */ - -static int -yaml_emitter_dump_alias(yaml_emitter_t *emitter, yaml_char_t *anchor) -{ - yaml_event_t event; - yaml_mark_t mark = { 0, 0, 0 }; - - ALIAS_EVENT_INIT(event, anchor, mark, mark); - - return yaml_emitter_emit(emitter, &event); -} - -/* - * Serialize a scalar. - */ - -static int -yaml_emitter_dump_scalar(yaml_emitter_t *emitter, yaml_node_t *node, - yaml_char_t *anchor) -{ - yaml_event_t event; - yaml_mark_t mark = { 0, 0, 0 }; - - int plain_implicit = (strcmp((char *)node->tag, - YAML_DEFAULT_SCALAR_TAG) == 0); - int quoted_implicit = (strcmp((char *)node->tag, - YAML_DEFAULT_SCALAR_TAG) == 0); - - SCALAR_EVENT_INIT(event, anchor, node->tag, node->data.scalar.value, - node->data.scalar.length, plain_implicit, quoted_implicit, - node->data.scalar.style, mark, mark); - - return yaml_emitter_emit(emitter, &event); -} - -/* - * Serialize a sequence. - */ - -static int -yaml_emitter_dump_sequence(yaml_emitter_t *emitter, yaml_node_t *node, - yaml_char_t *anchor) -{ - yaml_event_t event; - yaml_mark_t mark = { 0, 0, 0 }; - - int implicit = (strcmp((char *)node->tag, YAML_DEFAULT_SEQUENCE_TAG) == 0); - - yaml_node_item_t *item; - - SEQUENCE_START_EVENT_INIT(event, anchor, node->tag, implicit, - node->data.sequence.style, mark, mark); - if (!yaml_emitter_emit(emitter, &event)) return 0; - - for (item = node->data.sequence.items.start; - item < node->data.sequence.items.top; item ++) { - if (!yaml_emitter_dump_node(emitter, *item)) return 0; - } - - SEQUENCE_END_EVENT_INIT(event, mark, mark); - if (!yaml_emitter_emit(emitter, &event)) return 0; - - return 1; -} - -/* - * Serialize a mapping. - */ - -static int -yaml_emitter_dump_mapping(yaml_emitter_t *emitter, yaml_node_t *node, - yaml_char_t *anchor) -{ - yaml_event_t event; - yaml_mark_t mark = { 0, 0, 0 }; - - int implicit = (strcmp((char *)node->tag, YAML_DEFAULT_MAPPING_TAG) == 0); - - yaml_node_pair_t *pair; - - MAPPING_START_EVENT_INIT(event, anchor, node->tag, implicit, - node->data.mapping.style, mark, mark); - if (!yaml_emitter_emit(emitter, &event)) return 0; - - for (pair = node->data.mapping.pairs.start; - pair < node->data.mapping.pairs.top; pair ++) { - if (!yaml_emitter_dump_node(emitter, pair->key)) return 0; - if (!yaml_emitter_dump_node(emitter, pair->value)) return 0; - } - - MAPPING_END_EVENT_INIT(event, mark, mark); - if (!yaml_emitter_emit(emitter, &event)) return 0; - - return 1; -} - diff --git a/ruby_2_2/ext/psych/yaml/emitter.c b/ruby_2_2/ext/psych/yaml/emitter.c deleted file mode 100644 index 5adcbdeb32..0000000000 --- a/ruby_2_2/ext/psych/yaml/emitter.c +++ /dev/null @@ -1,2329 +0,0 @@ - -#include "yaml_private.h" - -/* - * Flush the buffer if needed. - */ - -#define FLUSH(emitter) \ - ((emitter->buffer.pointer+5 < emitter->buffer.end) \ - || yaml_emitter_flush(emitter)) - -/* - * Put a character to the output buffer. - */ - -#define PUT(emitter,value) \ - (FLUSH(emitter) \ - && (*(emitter->buffer.pointer++) = (yaml_char_t)(value), \ - emitter->column ++, \ - 1)) - -/* - * Put a line break to the output buffer. - */ - -#define PUT_BREAK(emitter) \ - (FLUSH(emitter) \ - && ((emitter->line_break == YAML_CR_BREAK ? \ - (*(emitter->buffer.pointer++) = (yaml_char_t) '\r') : \ - emitter->line_break == YAML_LN_BREAK ? \ - (*(emitter->buffer.pointer++) = (yaml_char_t) '\n') : \ - emitter->line_break == YAML_CRLN_BREAK ? \ - (*(emitter->buffer.pointer++) = (yaml_char_t) '\r', \ - *(emitter->buffer.pointer++) = (yaml_char_t) '\n') : 0), \ - emitter->column = 0, \ - emitter->line ++, \ - 1)) - -/* - * Copy a character from a string into buffer. - */ - -#define WRITE(emitter,string) \ - (FLUSH(emitter) \ - && (COPY(emitter->buffer,string), \ - emitter->column ++, \ - 1)) - -/* - * Copy a line break character from a string into buffer. - */ - -#define WRITE_BREAK(emitter,string) \ - (FLUSH(emitter) \ - && (CHECK(string,'\n') ? \ - (PUT_BREAK(emitter), \ - string.pointer ++, \ - 1) : \ - (COPY(emitter->buffer,string), \ - emitter->column = 0, \ - emitter->line ++, \ - 1))) - -/* - * API functions. - */ - -YAML_DECLARE(int) -yaml_emitter_emit(yaml_emitter_t *emitter, yaml_event_t *event); - -/* - * Utility functions. - */ - -static int -yaml_emitter_set_emitter_error(yaml_emitter_t *emitter, const char *problem); - -static int -yaml_emitter_need_more_events(yaml_emitter_t *emitter); - -static int -yaml_emitter_append_tag_directive(yaml_emitter_t *emitter, - yaml_tag_directive_t value, int allow_duplicates); - -static int -yaml_emitter_increase_indent(yaml_emitter_t *emitter, - int flow, int indentless); - -/* - * State functions. - */ - -static int -yaml_emitter_state_machine(yaml_emitter_t *emitter, yaml_event_t *event); - -static int -yaml_emitter_emit_stream_start(yaml_emitter_t *emitter, - yaml_event_t *event); - -static int -yaml_emitter_emit_document_start(yaml_emitter_t *emitter, - yaml_event_t *event, int first); - -static int -yaml_emitter_emit_document_content(yaml_emitter_t *emitter, - yaml_event_t *event); - -static int -yaml_emitter_emit_document_end(yaml_emitter_t *emitter, - yaml_event_t *event); - -static int -yaml_emitter_emit_flow_sequence_item(yaml_emitter_t *emitter, - yaml_event_t *event, int first); - -static int -yaml_emitter_emit_flow_mapping_key(yaml_emitter_t *emitter, - yaml_event_t *event, int first); - -static int -yaml_emitter_emit_flow_mapping_value(yaml_emitter_t *emitter, - yaml_event_t *event, int simple); - -static int -yaml_emitter_emit_block_sequence_item(yaml_emitter_t *emitter, - yaml_event_t *event, int first); - -static int -yaml_emitter_emit_block_mapping_key(yaml_emitter_t *emitter, - yaml_event_t *event, int first); - -static int -yaml_emitter_emit_block_mapping_value(yaml_emitter_t *emitter, - yaml_event_t *event, int simple); - -static int -yaml_emitter_emit_node(yaml_emitter_t *emitter, yaml_event_t *event, - int root, int sequence, int mapping, int simple_key); - -static int -yaml_emitter_emit_alias(yaml_emitter_t *emitter, yaml_event_t *event); - -static int -yaml_emitter_emit_scalar(yaml_emitter_t *emitter, yaml_event_t *event); - -static int -yaml_emitter_emit_sequence_start(yaml_emitter_t *emitter, yaml_event_t *event); - -static int -yaml_emitter_emit_mapping_start(yaml_emitter_t *emitter, yaml_event_t *event); - -/* - * Checkers. - */ - -static int -yaml_emitter_check_empty_document(yaml_emitter_t *emitter); - -static int -yaml_emitter_check_empty_sequence(yaml_emitter_t *emitter); - -static int -yaml_emitter_check_empty_mapping(yaml_emitter_t *emitter); - -static int -yaml_emitter_check_simple_key(yaml_emitter_t *emitter); - -static int -yaml_emitter_select_scalar_style(yaml_emitter_t *emitter, yaml_event_t *event); - -/* - * Processors. - */ - -static int -yaml_emitter_process_anchor(yaml_emitter_t *emitter); - -static int -yaml_emitter_process_tag(yaml_emitter_t *emitter); - -static int -yaml_emitter_process_scalar(yaml_emitter_t *emitter); - -/* - * Analyzers. - */ - -static int -yaml_emitter_analyze_version_directive(yaml_emitter_t *emitter, - yaml_version_directive_t version_directive); - -static int -yaml_emitter_analyze_tag_directive(yaml_emitter_t *emitter, - yaml_tag_directive_t tag_directive); - -static int -yaml_emitter_analyze_anchor(yaml_emitter_t *emitter, - yaml_char_t *anchor, int alias); - -static int -yaml_emitter_analyze_tag(yaml_emitter_t *emitter, - yaml_char_t *tag); - -static int -yaml_emitter_analyze_scalar(yaml_emitter_t *emitter, - yaml_char_t *value, size_t length); - -static int -yaml_emitter_analyze_event(yaml_emitter_t *emitter, - yaml_event_t *event); - -/* - * Writers. - */ - -static int -yaml_emitter_write_bom(yaml_emitter_t *emitter); - -static int -yaml_emitter_write_indent(yaml_emitter_t *emitter); - -static int -yaml_emitter_write_indicator(yaml_emitter_t *emitter, - char *indicator, int need_whitespace, - int is_whitespace, int is_indention); - -static int -yaml_emitter_write_anchor(yaml_emitter_t *emitter, - yaml_char_t *value, size_t length); - -static int -yaml_emitter_write_tag_handle(yaml_emitter_t *emitter, - yaml_char_t *value, size_t length); - -static int -yaml_emitter_write_tag_content(yaml_emitter_t *emitter, - yaml_char_t *value, size_t length, int need_whitespace); - -static int -yaml_emitter_write_plain_scalar(yaml_emitter_t *emitter, - yaml_char_t *value, size_t length, int allow_breaks); - -static int -yaml_emitter_write_single_quoted_scalar(yaml_emitter_t *emitter, - yaml_char_t *value, size_t length, int allow_breaks); - -static int -yaml_emitter_write_double_quoted_scalar(yaml_emitter_t *emitter, - yaml_char_t *value, size_t length, int allow_breaks); - -static int -yaml_emitter_write_block_scalar_hints(yaml_emitter_t *emitter, - yaml_string_t string); - -static int -yaml_emitter_write_literal_scalar(yaml_emitter_t *emitter, - yaml_char_t *value, size_t length); - -static int -yaml_emitter_write_folded_scalar(yaml_emitter_t *emitter, - yaml_char_t *value, size_t length); - -/* - * Set an emitter error and return 0. - */ - -static int -yaml_emitter_set_emitter_error(yaml_emitter_t *emitter, const char *problem) -{ - emitter->error = YAML_EMITTER_ERROR; - emitter->problem = problem; - - return 0; -} - -/* - * Emit an event. - */ - -YAML_DECLARE(int) -yaml_emitter_emit(yaml_emitter_t *emitter, yaml_event_t *event) -{ - if (!ENQUEUE(emitter, emitter->events, *event)) { - yaml_event_delete(event); - return 0; - } - - while (!yaml_emitter_need_more_events(emitter)) { - if (!yaml_emitter_analyze_event(emitter, emitter->events.head)) - return 0; - if (!yaml_emitter_state_machine(emitter, emitter->events.head)) - return 0; - yaml_event_delete(&DEQUEUE(emitter, emitter->events)); - } - - return 1; -} - -/* - * Check if we need to accumulate more events before emitting. - * - * We accumulate extra - * - 1 event for DOCUMENT-START - * - 2 events for SEQUENCE-START - * - 3 events for MAPPING-START - */ - -static int -yaml_emitter_need_more_events(yaml_emitter_t *emitter) -{ - int level = 0; - int accumulate = 0; - yaml_event_t *event; - - if (QUEUE_EMPTY(emitter, emitter->events)) - return 1; - - switch (emitter->events.head->type) { - case YAML_DOCUMENT_START_EVENT: - accumulate = 1; - break; - case YAML_SEQUENCE_START_EVENT: - accumulate = 2; - break; - case YAML_MAPPING_START_EVENT: - accumulate = 3; - break; - default: - return 0; - } - - if (emitter->events.tail - emitter->events.head > accumulate) - return 0; - - for (event = emitter->events.head; event != emitter->events.tail; event ++) { - switch (event->type) { - case YAML_STREAM_START_EVENT: - case YAML_DOCUMENT_START_EVENT: - case YAML_SEQUENCE_START_EVENT: - case YAML_MAPPING_START_EVENT: - level += 1; - break; - case YAML_STREAM_END_EVENT: - case YAML_DOCUMENT_END_EVENT: - case YAML_SEQUENCE_END_EVENT: - case YAML_MAPPING_END_EVENT: - level -= 1; - break; - default: - break; - } - if (!level) - return 0; - } - - return 1; -} - -/* - * Append a directive to the directives stack. - */ - -static int -yaml_emitter_append_tag_directive(yaml_emitter_t *emitter, - yaml_tag_directive_t value, int allow_duplicates) -{ - yaml_tag_directive_t *tag_directive; - yaml_tag_directive_t copy = { NULL, NULL }; - - for (tag_directive = emitter->tag_directives.start; - tag_directive != emitter->tag_directives.top; tag_directive ++) { - if (strcmp((char *)value.handle, (char *)tag_directive->handle) == 0) { - if (allow_duplicates) - return 1; - return yaml_emitter_set_emitter_error(emitter, - "duplicate %TAG directive"); - } - } - - copy.handle = yaml_strdup(value.handle); - copy.prefix = yaml_strdup(value.prefix); - if (!copy.handle || !copy.prefix) { - emitter->error = YAML_MEMORY_ERROR; - goto error; - } - - if (!PUSH(emitter, emitter->tag_directives, copy)) - goto error; - - return 1; - -error: - yaml_free(copy.handle); - yaml_free(copy.prefix); - return 0; -} - -/* - * Increase the indentation level. - */ - -static int -yaml_emitter_increase_indent(yaml_emitter_t *emitter, - int flow, int indentless) -{ - if (!PUSH(emitter, emitter->indents, emitter->indent)) - return 0; - - if (emitter->indent < 0) { - emitter->indent = flow ? emitter->best_indent : 0; - } - else if (!indentless) { - emitter->indent += emitter->best_indent; - } - - return 1; -} - -/* - * State dispatcher. - */ - -static int -yaml_emitter_state_machine(yaml_emitter_t *emitter, yaml_event_t *event) -{ - switch (emitter->state) - { - case YAML_EMIT_STREAM_START_STATE: - return yaml_emitter_emit_stream_start(emitter, event); - - case YAML_EMIT_FIRST_DOCUMENT_START_STATE: - return yaml_emitter_emit_document_start(emitter, event, 1); - - case YAML_EMIT_DOCUMENT_START_STATE: - return yaml_emitter_emit_document_start(emitter, event, 0); - - case YAML_EMIT_DOCUMENT_CONTENT_STATE: - return yaml_emitter_emit_document_content(emitter, event); - - case YAML_EMIT_DOCUMENT_END_STATE: - return yaml_emitter_emit_document_end(emitter, event); - - case YAML_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE: - return yaml_emitter_emit_flow_sequence_item(emitter, event, 1); - - case YAML_EMIT_FLOW_SEQUENCE_ITEM_STATE: - return yaml_emitter_emit_flow_sequence_item(emitter, event, 0); - - case YAML_EMIT_FLOW_MAPPING_FIRST_KEY_STATE: - return yaml_emitter_emit_flow_mapping_key(emitter, event, 1); - - case YAML_EMIT_FLOW_MAPPING_KEY_STATE: - return yaml_emitter_emit_flow_mapping_key(emitter, event, 0); - - case YAML_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE: - return yaml_emitter_emit_flow_mapping_value(emitter, event, 1); - - case YAML_EMIT_FLOW_MAPPING_VALUE_STATE: - return yaml_emitter_emit_flow_mapping_value(emitter, event, 0); - - case YAML_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE: - return yaml_emitter_emit_block_sequence_item(emitter, event, 1); - - case YAML_EMIT_BLOCK_SEQUENCE_ITEM_STATE: - return yaml_emitter_emit_block_sequence_item(emitter, event, 0); - - case YAML_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE: - return yaml_emitter_emit_block_mapping_key(emitter, event, 1); - - case YAML_EMIT_BLOCK_MAPPING_KEY_STATE: - return yaml_emitter_emit_block_mapping_key(emitter, event, 0); - - case YAML_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE: - return yaml_emitter_emit_block_mapping_value(emitter, event, 1); - - case YAML_EMIT_BLOCK_MAPPING_VALUE_STATE: - return yaml_emitter_emit_block_mapping_value(emitter, event, 0); - - case YAML_EMIT_END_STATE: - return yaml_emitter_set_emitter_error(emitter, - "expected nothing after STREAM-END"); - - default: - assert(1); /* Invalid state. */ - } - - return 0; -} - -/* - * Expect STREAM-START. - */ - -static int -yaml_emitter_emit_stream_start(yaml_emitter_t *emitter, - yaml_event_t *event) -{ - if (event->type == YAML_STREAM_START_EVENT) - { - if (!emitter->encoding) { - emitter->encoding = event->data.stream_start.encoding; - } - - if (!emitter->encoding) { - emitter->encoding = YAML_UTF8_ENCODING; - } - - if (emitter->best_indent < 2 || emitter->best_indent > 9) { - emitter->best_indent = 2; - } - - if (emitter->best_width >= 0 - && emitter->best_width <= emitter->best_indent*2) { - emitter->best_width = 80; - } - - if (emitter->best_width < 0) { - emitter->best_width = INT_MAX; - } - - if (!emitter->line_break) { - emitter->line_break = YAML_LN_BREAK; - } - - emitter->indent = -1; - - emitter->line = 0; - emitter->column = 0; - emitter->whitespace = 1; - emitter->indention = 1; - - if (emitter->encoding != YAML_UTF8_ENCODING) { - if (!yaml_emitter_write_bom(emitter)) - return 0; - } - - emitter->state = YAML_EMIT_FIRST_DOCUMENT_START_STATE; - - return 1; - } - - return yaml_emitter_set_emitter_error(emitter, - "expected STREAM-START"); -} - -/* - * Expect DOCUMENT-START or STREAM-END. - */ - -static int -yaml_emitter_emit_document_start(yaml_emitter_t *emitter, - yaml_event_t *event, int first) -{ - if (event->type == YAML_DOCUMENT_START_EVENT) - { - yaml_tag_directive_t default_tag_directives[] = { - {(yaml_char_t *)"!", (yaml_char_t *)"!"}, - {(yaml_char_t *)"!!", (yaml_char_t *)"tag:yaml.org,2002:"}, - {NULL, NULL} - }; - yaml_tag_directive_t *tag_directive; - int implicit; - - if (event->data.document_start.version_directive) { - if (!yaml_emitter_analyze_version_directive(emitter, - *event->data.document_start.version_directive)) - return 0; - } - - for (tag_directive = event->data.document_start.tag_directives.start; - tag_directive != event->data.document_start.tag_directives.end; - tag_directive ++) { - if (!yaml_emitter_analyze_tag_directive(emitter, *tag_directive)) - return 0; - if (!yaml_emitter_append_tag_directive(emitter, *tag_directive, 0)) - return 0; - } - - for (tag_directive = default_tag_directives; - tag_directive->handle; tag_directive ++) { - if (!yaml_emitter_append_tag_directive(emitter, *tag_directive, 1)) - return 0; - } - - implicit = event->data.document_start.implicit; - if (!first || emitter->canonical) { - implicit = 0; - } - - if ((event->data.document_start.version_directive || - (event->data.document_start.tag_directives.start - != event->data.document_start.tag_directives.end)) && - emitter->open_ended) - { - if (!yaml_emitter_write_indicator(emitter, "...", 1, 0, 0)) - return 0; - if (!yaml_emitter_write_indent(emitter)) - return 0; - } - - if (event->data.document_start.version_directive) { - implicit = 0; - if (!yaml_emitter_write_indicator(emitter, "%YAML", 1, 0, 0)) - return 0; - if (!yaml_emitter_write_indicator(emitter, "1.1", 1, 0, 0)) - return 0; - if (!yaml_emitter_write_indent(emitter)) - return 0; - } - - if (event->data.document_start.tag_directives.start - != event->data.document_start.tag_directives.end) { - implicit = 0; - for (tag_directive = event->data.document_start.tag_directives.start; - tag_directive != event->data.document_start.tag_directives.end; - tag_directive ++) { - if (!yaml_emitter_write_indicator(emitter, "%TAG", 1, 0, 0)) - return 0; - if (!yaml_emitter_write_tag_handle(emitter, tag_directive->handle, - strlen((char *)tag_directive->handle))) - return 0; - if (!yaml_emitter_write_tag_content(emitter, tag_directive->prefix, - strlen((char *)tag_directive->prefix), 1)) - return 0; - if (!yaml_emitter_write_indent(emitter)) - return 0; - } - } - - if (yaml_emitter_check_empty_document(emitter)) { - implicit = 0; - } - - if (!implicit) { - if (!yaml_emitter_write_indent(emitter)) - return 0; - if (!yaml_emitter_write_indicator(emitter, "---", 1, 0, 0)) - return 0; - if (emitter->canonical) { - if (!yaml_emitter_write_indent(emitter)) - return 0; - } - } - - emitter->state = YAML_EMIT_DOCUMENT_CONTENT_STATE; - - return 1; - } - - else if (event->type == YAML_STREAM_END_EVENT) - { - if (emitter->open_ended) - { - if (!yaml_emitter_write_indicator(emitter, "...", 1, 0, 0)) - return 0; - if (!yaml_emitter_write_indent(emitter)) - return 0; - } - - if (!yaml_emitter_flush(emitter)) - return 0; - - emitter->state = YAML_EMIT_END_STATE; - - return 1; - } - - return yaml_emitter_set_emitter_error(emitter, - "expected DOCUMENT-START or STREAM-END"); -} - -/* - * Expect the root node. - */ - -static int -yaml_emitter_emit_document_content(yaml_emitter_t *emitter, - yaml_event_t *event) -{ - if (!PUSH(emitter, emitter->states, YAML_EMIT_DOCUMENT_END_STATE)) - return 0; - - return yaml_emitter_emit_node(emitter, event, 1, 0, 0, 0); -} - -/* - * Expect DOCUMENT-END. - */ - -static int -yaml_emitter_emit_document_end(yaml_emitter_t *emitter, - yaml_event_t *event) -{ - if (event->type == YAML_DOCUMENT_END_EVENT) - { - if (!yaml_emitter_write_indent(emitter)) - return 0; - if (!event->data.document_end.implicit) { - if (!yaml_emitter_write_indicator(emitter, "...", 1, 0, 0)) - return 0; - if (!yaml_emitter_write_indent(emitter)) - return 0; - } - if (!yaml_emitter_flush(emitter)) - return 0; - - emitter->state = YAML_EMIT_DOCUMENT_START_STATE; - - while (!STACK_EMPTY(emitter, emitter->tag_directives)) { - yaml_tag_directive_t tag_directive = POP(emitter, - emitter->tag_directives); - yaml_free(tag_directive.handle); - yaml_free(tag_directive.prefix); - } - - return 1; - } - - return yaml_emitter_set_emitter_error(emitter, - "expected DOCUMENT-END"); -} - -/* - * - * Expect a flow item node. - */ - -static int -yaml_emitter_emit_flow_sequence_item(yaml_emitter_t *emitter, - yaml_event_t *event, int first) -{ - if (first) - { - if (!yaml_emitter_write_indicator(emitter, "[", 1, 1, 0)) - return 0; - if (!yaml_emitter_increase_indent(emitter, 1, 0)) - return 0; - emitter->flow_level ++; - } - - if (event->type == YAML_SEQUENCE_END_EVENT) - { - emitter->flow_level --; - emitter->indent = POP(emitter, emitter->indents); - if (emitter->canonical && !first) { - if (!yaml_emitter_write_indicator(emitter, ",", 0, 0, 0)) - return 0; - if (!yaml_emitter_write_indent(emitter)) - return 0; - } - if (!yaml_emitter_write_indicator(emitter, "]", 0, 0, 0)) - return 0; - emitter->state = POP(emitter, emitter->states); - - return 1; - } - - if (!first) { - if (!yaml_emitter_write_indicator(emitter, ",", 0, 0, 0)) - return 0; - } - - if (emitter->canonical || emitter->column > emitter->best_width) { - if (!yaml_emitter_write_indent(emitter)) - return 0; - } - if (!PUSH(emitter, emitter->states, YAML_EMIT_FLOW_SEQUENCE_ITEM_STATE)) - return 0; - - return yaml_emitter_emit_node(emitter, event, 0, 1, 0, 0); -} - -/* - * Expect a flow key node. - */ - -static int -yaml_emitter_emit_flow_mapping_key(yaml_emitter_t *emitter, - yaml_event_t *event, int first) -{ - if (first) - { - if (!yaml_emitter_write_indicator(emitter, "{", 1, 1, 0)) - return 0; - if (!yaml_emitter_increase_indent(emitter, 1, 0)) - return 0; - emitter->flow_level ++; - } - - if (event->type == YAML_MAPPING_END_EVENT) - { - emitter->flow_level --; - emitter->indent = POP(emitter, emitter->indents); - if (emitter->canonical && !first) { - if (!yaml_emitter_write_indicator(emitter, ",", 0, 0, 0)) - return 0; - if (!yaml_emitter_write_indent(emitter)) - return 0; - } - if (!yaml_emitter_write_indicator(emitter, "}", 0, 0, 0)) - return 0; - emitter->state = POP(emitter, emitter->states); - - return 1; - } - - if (!first) { - if (!yaml_emitter_write_indicator(emitter, ",", 0, 0, 0)) - return 0; - } - if (emitter->canonical || emitter->column > emitter->best_width) { - if (!yaml_emitter_write_indent(emitter)) - return 0; - } - - if (!emitter->canonical && yaml_emitter_check_simple_key(emitter)) - { - if (!PUSH(emitter, emitter->states, - YAML_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE)) - return 0; - - return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 1); - } - else - { - if (!yaml_emitter_write_indicator(emitter, "?", 1, 0, 0)) - return 0; - if (!PUSH(emitter, emitter->states, - YAML_EMIT_FLOW_MAPPING_VALUE_STATE)) - return 0; - - return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 0); - } -} - -/* - * Expect a flow value node. - */ - -static int -yaml_emitter_emit_flow_mapping_value(yaml_emitter_t *emitter, - yaml_event_t *event, int simple) -{ - if (simple) { - if (!yaml_emitter_write_indicator(emitter, ":", 0, 0, 0)) - return 0; - } - else { - if (emitter->canonical || emitter->column > emitter->best_width) { - if (!yaml_emitter_write_indent(emitter)) - return 0; - } - if (!yaml_emitter_write_indicator(emitter, ":", 1, 0, 0)) - return 0; - } - if (!PUSH(emitter, emitter->states, YAML_EMIT_FLOW_MAPPING_KEY_STATE)) - return 0; - return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 0); -} - -/* - * Expect a block item node. - */ - -static int -yaml_emitter_emit_block_sequence_item(yaml_emitter_t *emitter, - yaml_event_t *event, int first) -{ - if (first) - { - if (!yaml_emitter_increase_indent(emitter, 0, - (emitter->mapping_context && !emitter->indention))) - return 0; - } - - if (event->type == YAML_SEQUENCE_END_EVENT) - { - emitter->indent = POP(emitter, emitter->indents); - emitter->state = POP(emitter, emitter->states); - - return 1; - } - - if (!yaml_emitter_write_indent(emitter)) - return 0; - if (!yaml_emitter_write_indicator(emitter, "-", 1, 0, 1)) - return 0; - if (!PUSH(emitter, emitter->states, - YAML_EMIT_BLOCK_SEQUENCE_ITEM_STATE)) - return 0; - - return yaml_emitter_emit_node(emitter, event, 0, 1, 0, 0); -} - -/* - * Expect a block key node. - */ - -static int -yaml_emitter_emit_block_mapping_key(yaml_emitter_t *emitter, - yaml_event_t *event, int first) -{ - if (first) - { - if (!yaml_emitter_increase_indent(emitter, 0, 0)) - return 0; - } - - if (event->type == YAML_MAPPING_END_EVENT) - { - emitter->indent = POP(emitter, emitter->indents); - emitter->state = POP(emitter, emitter->states); - - return 1; - } - - if (!yaml_emitter_write_indent(emitter)) - return 0; - - if (yaml_emitter_check_simple_key(emitter)) - { - if (!PUSH(emitter, emitter->states, - YAML_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE)) - return 0; - - return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 1); - } - else - { - if (!yaml_emitter_write_indicator(emitter, "?", 1, 0, 1)) - return 0; - if (!PUSH(emitter, emitter->states, - YAML_EMIT_BLOCK_MAPPING_VALUE_STATE)) - return 0; - - return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 0); - } -} - -/* - * Expect a block value node. - */ - -static int -yaml_emitter_emit_block_mapping_value(yaml_emitter_t *emitter, - yaml_event_t *event, int simple) -{ - if (simple) { - if (!yaml_emitter_write_indicator(emitter, ":", 0, 0, 0)) - return 0; - } - else { - if (!yaml_emitter_write_indent(emitter)) - return 0; - if (!yaml_emitter_write_indicator(emitter, ":", 1, 0, 1)) - return 0; - } - if (!PUSH(emitter, emitter->states, - YAML_EMIT_BLOCK_MAPPING_KEY_STATE)) - return 0; - - return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 0); -} - -/* - * Expect a node. - */ - -static int -yaml_emitter_emit_node(yaml_emitter_t *emitter, yaml_event_t *event, - int root, int sequence, int mapping, int simple_key) -{ - emitter->root_context = root; - emitter->sequence_context = sequence; - emitter->mapping_context = mapping; - emitter->simple_key_context = simple_key; - - switch (event->type) - { - case YAML_ALIAS_EVENT: - return yaml_emitter_emit_alias(emitter, event); - - case YAML_SCALAR_EVENT: - return yaml_emitter_emit_scalar(emitter, event); - - case YAML_SEQUENCE_START_EVENT: - return yaml_emitter_emit_sequence_start(emitter, event); - - case YAML_MAPPING_START_EVENT: - return yaml_emitter_emit_mapping_start(emitter, event); - - default: - return yaml_emitter_set_emitter_error(emitter, - "expected SCALAR, SEQUENCE-START, MAPPING-START, or ALIAS"); - } - - return 0; -} - -/* - * Expect ALIAS. - */ - -static int -yaml_emitter_emit_alias(yaml_emitter_t *emitter, yaml_event_t *event) -{ - if (!yaml_emitter_process_anchor(emitter)) - return 0; - emitter->state = POP(emitter, emitter->states); - - return 1; -} - -/* - * Expect SCALAR. - */ - -static int -yaml_emitter_emit_scalar(yaml_emitter_t *emitter, yaml_event_t *event) -{ - if (!yaml_emitter_select_scalar_style(emitter, event)) - return 0; - if (!yaml_emitter_process_anchor(emitter)) - return 0; - if (!yaml_emitter_process_tag(emitter)) - return 0; - if (!yaml_emitter_increase_indent(emitter, 1, 0)) - return 0; - if (!yaml_emitter_process_scalar(emitter)) - return 0; - emitter->indent = POP(emitter, emitter->indents); - emitter->state = POP(emitter, emitter->states); - - return 1; -} - -/* - * Expect SEQUENCE-START. - */ - -static int -yaml_emitter_emit_sequence_start(yaml_emitter_t *emitter, yaml_event_t *event) -{ - if (!yaml_emitter_process_anchor(emitter)) - return 0; - if (!yaml_emitter_process_tag(emitter)) - return 0; - - if (emitter->flow_level || emitter->canonical - || event->data.sequence_start.style == YAML_FLOW_SEQUENCE_STYLE - || yaml_emitter_check_empty_sequence(emitter)) { - emitter->state = YAML_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE; - } - else { - emitter->state = YAML_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE; - } - - return 1; -} - -/* - * Expect MAPPING-START. - */ - -static int -yaml_emitter_emit_mapping_start(yaml_emitter_t *emitter, yaml_event_t *event) -{ - if (!yaml_emitter_process_anchor(emitter)) - return 0; - if (!yaml_emitter_process_tag(emitter)) - return 0; - - if (emitter->flow_level || emitter->canonical - || event->data.mapping_start.style == YAML_FLOW_MAPPING_STYLE - || yaml_emitter_check_empty_mapping(emitter)) { - emitter->state = YAML_EMIT_FLOW_MAPPING_FIRST_KEY_STATE; - } - else { - emitter->state = YAML_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE; - } - - return 1; -} - -/* - * Check if the document content is an empty scalar. - */ - -static int -yaml_emitter_check_empty_document(yaml_emitter_t *emitter) -{ - return 0; -} - -/* - * Check if the next events represent an empty sequence. - */ - -static int -yaml_emitter_check_empty_sequence(yaml_emitter_t *emitter) -{ - if (emitter->events.tail - emitter->events.head < 2) - return 0; - - return (emitter->events.head[0].type == YAML_SEQUENCE_START_EVENT - && emitter->events.head[1].type == YAML_SEQUENCE_END_EVENT); -} - -/* - * Check if the next events represent an empty mapping. - */ - -static int -yaml_emitter_check_empty_mapping(yaml_emitter_t *emitter) -{ - if (emitter->events.tail - emitter->events.head < 2) - return 0; - - return (emitter->events.head[0].type == YAML_MAPPING_START_EVENT - && emitter->events.head[1].type == YAML_MAPPING_END_EVENT); -} - -/* - * Check if the next node can be expressed as a simple key. - */ - -static int -yaml_emitter_check_simple_key(yaml_emitter_t *emitter) -{ - yaml_event_t *event = emitter->events.head; - size_t length = 0; - - switch (event->type) - { - case YAML_ALIAS_EVENT: - length += emitter->anchor_data.anchor_length; - break; - - case YAML_SCALAR_EVENT: - if (emitter->scalar_data.multiline) - return 0; - length += emitter->anchor_data.anchor_length - + emitter->tag_data.handle_length - + emitter->tag_data.suffix_length - + emitter->scalar_data.length; - break; - - case YAML_SEQUENCE_START_EVENT: - if (!yaml_emitter_check_empty_sequence(emitter)) - return 0; - length += emitter->anchor_data.anchor_length - + emitter->tag_data.handle_length - + emitter->tag_data.suffix_length; - break; - - case YAML_MAPPING_START_EVENT: - if (!yaml_emitter_check_empty_mapping(emitter)) - return 0; - length += emitter->anchor_data.anchor_length - + emitter->tag_data.handle_length - + emitter->tag_data.suffix_length; - break; - - default: - return 0; - } - - if (length > 128) - return 0; - - return 1; -} - -/* - * Determine an acceptable scalar style. - */ - -static int -yaml_emitter_select_scalar_style(yaml_emitter_t *emitter, yaml_event_t *event) -{ - yaml_scalar_style_t style = event->data.scalar.style; - int no_tag = (!emitter->tag_data.handle && !emitter->tag_data.suffix); - - if (no_tag && !event->data.scalar.plain_implicit - && !event->data.scalar.quoted_implicit) { - return yaml_emitter_set_emitter_error(emitter, - "neither tag nor implicit flags are specified"); - } - - if (style == YAML_ANY_SCALAR_STYLE) - style = YAML_PLAIN_SCALAR_STYLE; - - if (emitter->canonical) - style = YAML_DOUBLE_QUOTED_SCALAR_STYLE; - - if (emitter->simple_key_context && emitter->scalar_data.multiline) - style = YAML_DOUBLE_QUOTED_SCALAR_STYLE; - - if (style == YAML_PLAIN_SCALAR_STYLE) - { - if ((emitter->flow_level && !emitter->scalar_data.flow_plain_allowed) - || (!emitter->flow_level && !emitter->scalar_data.block_plain_allowed)) - style = YAML_SINGLE_QUOTED_SCALAR_STYLE; - if (!emitter->scalar_data.length - && (emitter->flow_level || emitter->simple_key_context)) - style = YAML_SINGLE_QUOTED_SCALAR_STYLE; - if (no_tag && !event->data.scalar.plain_implicit) - style = YAML_SINGLE_QUOTED_SCALAR_STYLE; - } - - if (style == YAML_SINGLE_QUOTED_SCALAR_STYLE) - { - if (!emitter->scalar_data.single_quoted_allowed) - style = YAML_DOUBLE_QUOTED_SCALAR_STYLE; - } - - if (style == YAML_LITERAL_SCALAR_STYLE || style == YAML_FOLDED_SCALAR_STYLE) - { - if (!emitter->scalar_data.block_allowed - || emitter->flow_level || emitter->simple_key_context) - style = YAML_DOUBLE_QUOTED_SCALAR_STYLE; - } - - if (no_tag && !event->data.scalar.quoted_implicit - && style != YAML_PLAIN_SCALAR_STYLE) - { - emitter->tag_data.handle = (yaml_char_t *)"!"; - emitter->tag_data.handle_length = 1; - } - - emitter->scalar_data.style = style; - - return 1; -} - -/* - * Write an achor. - */ - -static int -yaml_emitter_process_anchor(yaml_emitter_t *emitter) -{ - if (!emitter->anchor_data.anchor) - return 1; - - if (!yaml_emitter_write_indicator(emitter, - (emitter->anchor_data.alias ? "*" : "&"), 1, 0, 0)) - return 0; - - return yaml_emitter_write_anchor(emitter, - emitter->anchor_data.anchor, emitter->anchor_data.anchor_length); -} - -/* - * Write a tag. - */ - -static int -yaml_emitter_process_tag(yaml_emitter_t *emitter) -{ - if (!emitter->tag_data.handle && !emitter->tag_data.suffix) - return 1; - - if (emitter->tag_data.handle) - { - if (!yaml_emitter_write_tag_handle(emitter, emitter->tag_data.handle, - emitter->tag_data.handle_length)) - return 0; - if (emitter->tag_data.suffix) { - if (!yaml_emitter_write_tag_content(emitter, emitter->tag_data.suffix, - emitter->tag_data.suffix_length, 0)) - return 0; - } - } - else - { - if (!yaml_emitter_write_indicator(emitter, "!<", 1, 0, 0)) - return 0; - if (!yaml_emitter_write_tag_content(emitter, emitter->tag_data.suffix, - emitter->tag_data.suffix_length, 0)) - return 0; - if (!yaml_emitter_write_indicator(emitter, ">", 0, 0, 0)) - return 0; - } - - return 1; -} - -/* - * Write a scalar. - */ - -static int -yaml_emitter_process_scalar(yaml_emitter_t *emitter) -{ - switch (emitter->scalar_data.style) - { - case YAML_PLAIN_SCALAR_STYLE: - return yaml_emitter_write_plain_scalar(emitter, - emitter->scalar_data.value, emitter->scalar_data.length, - !emitter->simple_key_context); - - case YAML_SINGLE_QUOTED_SCALAR_STYLE: - return yaml_emitter_write_single_quoted_scalar(emitter, - emitter->scalar_data.value, emitter->scalar_data.length, - !emitter->simple_key_context); - - case YAML_DOUBLE_QUOTED_SCALAR_STYLE: - return yaml_emitter_write_double_quoted_scalar(emitter, - emitter->scalar_data.value, emitter->scalar_data.length, - !emitter->simple_key_context); - - case YAML_LITERAL_SCALAR_STYLE: - return yaml_emitter_write_literal_scalar(emitter, - emitter->scalar_data.value, emitter->scalar_data.length); - - case YAML_FOLDED_SCALAR_STYLE: - return yaml_emitter_write_folded_scalar(emitter, - emitter->scalar_data.value, emitter->scalar_data.length); - - default: - assert(1); /* Impossible. */ - } - - return 0; -} - -/* - * Check if a %YAML directive is valid. - */ - -static int -yaml_emitter_analyze_version_directive(yaml_emitter_t *emitter, - yaml_version_directive_t version_directive) -{ - if (version_directive.major != 1 || version_directive.minor != 1) { - return yaml_emitter_set_emitter_error(emitter, - "incompatible %YAML directive"); - } - - return 1; -} - -/* - * Check if a %TAG directive is valid. - */ - -static int -yaml_emitter_analyze_tag_directive(yaml_emitter_t *emitter, - yaml_tag_directive_t tag_directive) -{ - yaml_string_t handle; - yaml_string_t prefix; - size_t handle_length; - size_t prefix_length; - - handle_length = strlen((char *)tag_directive.handle); - prefix_length = strlen((char *)tag_directive.prefix); - STRING_ASSIGN(handle, tag_directive.handle, handle_length); - STRING_ASSIGN(prefix, tag_directive.prefix, prefix_length); - - if (handle.start == handle.end) { - return yaml_emitter_set_emitter_error(emitter, - "tag handle must not be empty"); - } - - if (handle.start[0] != '!') { - return yaml_emitter_set_emitter_error(emitter, - "tag handle must start with '!'"); - } - - if (handle.end[-1] != '!') { - return yaml_emitter_set_emitter_error(emitter, - "tag handle must end with '!'"); - } - - handle.pointer ++; - - while (handle.pointer < handle.end-1) { - if (!IS_ALPHA(handle)) { - return yaml_emitter_set_emitter_error(emitter, - "tag handle must contain alphanumerical characters only"); - } - MOVE(handle); - } - - if (prefix.start == prefix.end) { - return yaml_emitter_set_emitter_error(emitter, - "tag prefix must not be empty"); - } - - return 1; -} - -/* - * Check if an anchor is valid. - */ - -static int -yaml_emitter_analyze_anchor(yaml_emitter_t *emitter, - yaml_char_t *anchor, int alias) -{ - size_t anchor_length; - yaml_string_t string; - - anchor_length = strlen((char *)anchor); - STRING_ASSIGN(string, anchor, anchor_length); - - if (string.start == string.end) { - return yaml_emitter_set_emitter_error(emitter, alias ? - "alias value must not be empty" : - "anchor value must not be empty"); - } - - while (string.pointer != string.end) { - if (!IS_ALPHA(string)) { - return yaml_emitter_set_emitter_error(emitter, alias ? - "alias value must contain alphanumerical characters only" : - "anchor value must contain alphanumerical characters only"); - } - MOVE(string); - } - - emitter->anchor_data.anchor = string.start; - emitter->anchor_data.anchor_length = string.end - string.start; - emitter->anchor_data.alias = alias; - - return 1; -} - -/* - * Check if a tag is valid. - */ - -static int -yaml_emitter_analyze_tag(yaml_emitter_t *emitter, - yaml_char_t *tag) -{ - size_t tag_length; - yaml_string_t string; - yaml_tag_directive_t *tag_directive; - - tag_length = strlen((char *)tag); - STRING_ASSIGN(string, tag, tag_length); - - if (string.start == string.end) { - return yaml_emitter_set_emitter_error(emitter, - "tag value must not be empty"); - } - - for (tag_directive = emitter->tag_directives.start; - tag_directive != emitter->tag_directives.top; tag_directive ++) { - size_t prefix_length = strlen((char *)tag_directive->prefix); - if (prefix_length < (size_t)(string.end - string.start) - && strncmp((char *)tag_directive->prefix, (char *)string.start, - prefix_length) == 0) - { - emitter->tag_data.handle = tag_directive->handle; - emitter->tag_data.handle_length = - strlen((char *)tag_directive->handle); - emitter->tag_data.suffix = string.start + prefix_length; - emitter->tag_data.suffix_length = - (string.end - string.start) - prefix_length; - return 1; - } - } - - emitter->tag_data.suffix = string.start; - emitter->tag_data.suffix_length = string.end - string.start; - - return 1; -} - -/* - * Check if a scalar is valid. - */ - -static int -yaml_emitter_analyze_scalar(yaml_emitter_t *emitter, - yaml_char_t *value, size_t length) -{ - yaml_string_t string; - - int block_indicators = 0; - int flow_indicators = 0; - int line_breaks = 0; - int special_characters = 0; - - int leading_space = 0; - int leading_break = 0; - int trailing_space = 0; - int trailing_break = 0; - int break_space = 0; - int space_break = 0; - - int preceded_by_whitespace = 0; - int followed_by_whitespace = 0; - int previous_space = 0; - int previous_break = 0; - - STRING_ASSIGN(string, value, length); - - emitter->scalar_data.value = value; - emitter->scalar_data.length = length; - - if (string.start == string.end) - { - emitter->scalar_data.multiline = 0; - emitter->scalar_data.flow_plain_allowed = 0; - emitter->scalar_data.block_plain_allowed = 1; - emitter->scalar_data.single_quoted_allowed = 1; - emitter->scalar_data.block_allowed = 0; - - return 1; - } - - if ((CHECK_AT(string, '-', 0) - && CHECK_AT(string, '-', 1) - && CHECK_AT(string, '-', 2)) - || (CHECK_AT(string, '.', 0) - && CHECK_AT(string, '.', 1) - && CHECK_AT(string, '.', 2))) { - block_indicators = 1; - flow_indicators = 1; - } - - preceded_by_whitespace = 1; - followed_by_whitespace = IS_BLANKZ_AT(string, WIDTH(string)); - - while (string.pointer != string.end) - { - if (string.start == string.pointer) - { - if (CHECK(string, '#') || CHECK(string, ',') - || CHECK(string, '[') || CHECK(string, ']') - || CHECK(string, '{') || CHECK(string, '}') - || CHECK(string, '&') || CHECK(string, '*') - || CHECK(string, '!') || CHECK(string, '|') - || CHECK(string, '>') || CHECK(string, '\'') - || CHECK(string, '"') || CHECK(string, '%') - || CHECK(string, '@') || CHECK(string, '`')) { - flow_indicators = 1; - block_indicators = 1; - } - - if (CHECK(string, '?') || CHECK(string, ':')) { - flow_indicators = 1; - if (followed_by_whitespace) { - block_indicators = 1; - } - } - - if (CHECK(string, '-') && followed_by_whitespace) { - flow_indicators = 1; - block_indicators = 1; - } - } - else - { - if (CHECK(string, ',') || CHECK(string, '?') - || CHECK(string, '[') || CHECK(string, ']') - || CHECK(string, '{') || CHECK(string, '}')) { - flow_indicators = 1; - } - - if (CHECK(string, ':')) { - flow_indicators = 1; - if (followed_by_whitespace) { - block_indicators = 1; - } - } - - if (CHECK(string, '#') && preceded_by_whitespace) { - flow_indicators = 1; - block_indicators = 1; - } - } - - if (!IS_PRINTABLE(string) - || (!IS_ASCII(string) && !emitter->unicode)) { - special_characters = 1; - } - - if (IS_BREAK(string)) { - line_breaks = 1; - } - - if (IS_SPACE(string)) - { - if (string.start == string.pointer) { - leading_space = 1; - } - if (string.pointer+WIDTH(string) == string.end) { - trailing_space = 1; - } - if (previous_break) { - break_space = 1; - } - previous_space = 1; - previous_break = 0; - } - else if (IS_BREAK(string)) - { - if (string.start == string.pointer) { - leading_break = 1; - } - if (string.pointer+WIDTH(string) == string.end) { - trailing_break = 1; - } - if (previous_space) { - space_break = 1; - } - previous_space = 0; - previous_break = 1; - } - else - { - previous_space = 0; - previous_break = 0; - } - - preceded_by_whitespace = IS_BLANKZ(string); - MOVE(string); - if (string.pointer != string.end) { - followed_by_whitespace = IS_BLANKZ_AT(string, WIDTH(string)); - } - } - - emitter->scalar_data.multiline = line_breaks; - - emitter->scalar_data.flow_plain_allowed = 1; - emitter->scalar_data.block_plain_allowed = 1; - emitter->scalar_data.single_quoted_allowed = 1; - emitter->scalar_data.block_allowed = 1; - - if (leading_space || leading_break || trailing_space || trailing_break) { - emitter->scalar_data.flow_plain_allowed = 0; - emitter->scalar_data.block_plain_allowed = 0; - } - - if (trailing_space) { - emitter->scalar_data.block_allowed = 0; - } - - if (break_space) { - emitter->scalar_data.flow_plain_allowed = 0; - emitter->scalar_data.block_plain_allowed = 0; - emitter->scalar_data.single_quoted_allowed = 0; - } - - if (space_break || special_characters) { - emitter->scalar_data.flow_plain_allowed = 0; - emitter->scalar_data.block_plain_allowed = 0; - emitter->scalar_data.single_quoted_allowed = 0; - emitter->scalar_data.block_allowed = 0; - } - - if (line_breaks) { - emitter->scalar_data.flow_plain_allowed = 0; - emitter->scalar_data.block_plain_allowed = 0; - } - - if (flow_indicators) { - emitter->scalar_data.flow_plain_allowed = 0; - } - - if (block_indicators) { - emitter->scalar_data.block_plain_allowed = 0; - } - - return 1; -} - -/* - * Check if the event data is valid. - */ - -static int -yaml_emitter_analyze_event(yaml_emitter_t *emitter, - yaml_event_t *event) -{ - emitter->anchor_data.anchor = NULL; - emitter->anchor_data.anchor_length = 0; - emitter->tag_data.handle = NULL; - emitter->tag_data.handle_length = 0; - emitter->tag_data.suffix = NULL; - emitter->tag_data.suffix_length = 0; - emitter->scalar_data.value = NULL; - emitter->scalar_data.length = 0; - - switch (event->type) - { - case YAML_ALIAS_EVENT: - if (!yaml_emitter_analyze_anchor(emitter, - event->data.alias.anchor, 1)) - return 0; - return 1; - - case YAML_SCALAR_EVENT: - if (event->data.scalar.anchor) { - if (!yaml_emitter_analyze_anchor(emitter, - event->data.scalar.anchor, 0)) - return 0; - } - if (event->data.scalar.tag && (emitter->canonical || - (!event->data.scalar.plain_implicit - && !event->data.scalar.quoted_implicit))) { - if (!yaml_emitter_analyze_tag(emitter, event->data.scalar.tag)) - return 0; - } - if (!yaml_emitter_analyze_scalar(emitter, - event->data.scalar.value, event->data.scalar.length)) - return 0; - return 1; - - case YAML_SEQUENCE_START_EVENT: - if (event->data.sequence_start.anchor) { - if (!yaml_emitter_analyze_anchor(emitter, - event->data.sequence_start.anchor, 0)) - return 0; - } - if (event->data.sequence_start.tag && (emitter->canonical || - !event->data.sequence_start.implicit)) { - if (!yaml_emitter_analyze_tag(emitter, - event->data.sequence_start.tag)) - return 0; - } - return 1; - - case YAML_MAPPING_START_EVENT: - if (event->data.mapping_start.anchor) { - if (!yaml_emitter_analyze_anchor(emitter, - event->data.mapping_start.anchor, 0)) - return 0; - } - if (event->data.mapping_start.tag && (emitter->canonical || - !event->data.mapping_start.implicit)) { - if (!yaml_emitter_analyze_tag(emitter, - event->data.mapping_start.tag)) - return 0; - } - return 1; - - default: - return 1; - } -} - -/* - * Write the BOM character. - */ - -static int -yaml_emitter_write_bom(yaml_emitter_t *emitter) -{ - if (!FLUSH(emitter)) return 0; - - *(emitter->buffer.pointer++) = (yaml_char_t) '\xEF'; - *(emitter->buffer.pointer++) = (yaml_char_t) '\xBB'; - *(emitter->buffer.pointer++) = (yaml_char_t) '\xBF'; - - return 1; -} - -static int -yaml_emitter_write_indent(yaml_emitter_t *emitter) -{ - int indent = (emitter->indent >= 0) ? emitter->indent : 0; - - if (!emitter->indention || emitter->column > indent - || (emitter->column == indent && !emitter->whitespace)) { - if (!PUT_BREAK(emitter)) return 0; - } - - while (emitter->column < indent) { - if (!PUT(emitter, ' ')) return 0; - } - - emitter->whitespace = 1; - emitter->indention = 1; - - return 1; -} - -static int -yaml_emitter_write_indicator(yaml_emitter_t *emitter, - char *indicator, int need_whitespace, - int is_whitespace, int is_indention) -{ - size_t indicator_length; - yaml_string_t string; - - indicator_length = strlen(indicator); - STRING_ASSIGN(string, (yaml_char_t *)indicator, indicator_length); - - if (need_whitespace && !emitter->whitespace) { - if (!PUT(emitter, ' ')) return 0; - } - - while (string.pointer != string.end) { - if (!WRITE(emitter, string)) return 0; - } - - emitter->whitespace = is_whitespace; - emitter->indention = (emitter->indention && is_indention); - emitter->open_ended = 0; - - return 1; -} - -static int -yaml_emitter_write_anchor(yaml_emitter_t *emitter, - yaml_char_t *value, size_t length) -{ - yaml_string_t string; - STRING_ASSIGN(string, value, length); - - while (string.pointer != string.end) { - if (!WRITE(emitter, string)) return 0; - } - - emitter->whitespace = 0; - emitter->indention = 0; - - return 1; -} - -static int -yaml_emitter_write_tag_handle(yaml_emitter_t *emitter, - yaml_char_t *value, size_t length) -{ - yaml_string_t string; - STRING_ASSIGN(string, value, length); - - if (!emitter->whitespace) { - if (!PUT(emitter, ' ')) return 0; - } - - while (string.pointer != string.end) { - if (!WRITE(emitter, string)) return 0; - } - - emitter->whitespace = 0; - emitter->indention = 0; - - return 1; -} - -static int -yaml_emitter_write_tag_content(yaml_emitter_t *emitter, - yaml_char_t *value, size_t length, - int need_whitespace) -{ - yaml_string_t string; - STRING_ASSIGN(string, value, length); - - if (need_whitespace && !emitter->whitespace) { - if (!PUT(emitter, ' ')) return 0; - } - - while (string.pointer != string.end) { - if (IS_ALPHA(string) - || CHECK(string, ';') || CHECK(string, '/') - || CHECK(string, '?') || CHECK(string, ':') - || CHECK(string, '@') || CHECK(string, '&') - || CHECK(string, '=') || CHECK(string, '+') - || CHECK(string, '$') || CHECK(string, ',') - || CHECK(string, '_') || CHECK(string, '.') - || CHECK(string, '~') || CHECK(string, '*') - || CHECK(string, '\'') || CHECK(string, '(') - || CHECK(string, ')') || CHECK(string, '[') - || CHECK(string, ']')) { - if (!WRITE(emitter, string)) return 0; - } - else { - int width = WIDTH(string); - unsigned int value; - while (width --) { - value = *(string.pointer++); - if (!PUT(emitter, '%')) return 0; - if (!PUT(emitter, (value >> 4) - + ((value >> 4) < 10 ? '0' : 'A' - 10))) - return 0; - if (!PUT(emitter, (value & 0x0F) - + ((value & 0x0F) < 10 ? '0' : 'A' - 10))) - return 0; - } - } - } - - emitter->whitespace = 0; - emitter->indention = 0; - - return 1; -} - -static int -yaml_emitter_write_plain_scalar(yaml_emitter_t *emitter, - yaml_char_t *value, size_t length, int allow_breaks) -{ - yaml_string_t string; - int spaces = 0; - int breaks = 0; - - STRING_ASSIGN(string, value, length); - - if (!emitter->whitespace) { - if (!PUT(emitter, ' ')) return 0; - } - - while (string.pointer != string.end) - { - if (IS_SPACE(string)) - { - if (allow_breaks && !spaces - && emitter->column > emitter->best_width - && !IS_SPACE_AT(string, 1)) { - if (!yaml_emitter_write_indent(emitter)) return 0; - MOVE(string); - } - else { - if (!WRITE(emitter, string)) return 0; - } - spaces = 1; - } - else if (IS_BREAK(string)) - { - if (!breaks && CHECK(string, '\n')) { - if (!PUT_BREAK(emitter)) return 0; - } - if (!WRITE_BREAK(emitter, string)) return 0; - emitter->indention = 1; - breaks = 1; - } - else - { - if (breaks) { - if (!yaml_emitter_write_indent(emitter)) return 0; - } - if (!WRITE(emitter, string)) return 0; - emitter->indention = 0; - spaces = 0; - breaks = 0; - } - } - - emitter->whitespace = 0; - emitter->indention = 0; - if (emitter->root_context) - { - emitter->open_ended = 1; - } - - return 1; -} - -static int -yaml_emitter_write_single_quoted_scalar(yaml_emitter_t *emitter, - yaml_char_t *value, size_t length, int allow_breaks) -{ - yaml_string_t string; - int spaces = 0; - int breaks = 0; - - STRING_ASSIGN(string, value, length); - - if (!yaml_emitter_write_indicator(emitter, "'", 1, 0, 0)) - return 0; - - while (string.pointer != string.end) - { - if (IS_SPACE(string)) - { - if (allow_breaks && !spaces - && emitter->column > emitter->best_width - && string.pointer != string.start - && string.pointer != string.end - 1 - && !IS_SPACE_AT(string, 1)) { - if (!yaml_emitter_write_indent(emitter)) return 0; - MOVE(string); - } - else { - if (!WRITE(emitter, string)) return 0; - } - spaces = 1; - } - else if (IS_BREAK(string)) - { - if (!breaks && CHECK(string, '\n')) { - if (!PUT_BREAK(emitter)) return 0; - } - if (!WRITE_BREAK(emitter, string)) return 0; - emitter->indention = 1; - breaks = 1; - } - else - { - if (breaks) { - if (!yaml_emitter_write_indent(emitter)) return 0; - } - if (CHECK(string, '\'')) { - if (!PUT(emitter, '\'')) return 0; - } - if (!WRITE(emitter, string)) return 0; - emitter->indention = 0; - spaces = 0; - breaks = 0; - } - } - - if (!yaml_emitter_write_indicator(emitter, "'", 0, 0, 0)) - return 0; - - emitter->whitespace = 0; - emitter->indention = 0; - - return 1; -} - -static int -yaml_emitter_write_double_quoted_scalar(yaml_emitter_t *emitter, - yaml_char_t *value, size_t length, int allow_breaks) -{ - yaml_string_t string; - int spaces = 0; - - STRING_ASSIGN(string, value, length); - - if (!yaml_emitter_write_indicator(emitter, "\"", 1, 0, 0)) - return 0; - - while (string.pointer != string.end) - { - if (!IS_PRINTABLE(string) || (!emitter->unicode && !IS_ASCII(string)) - || IS_BOM(string) || IS_BREAK(string) - || CHECK(string, '"') || CHECK(string, '\\')) - { - unsigned char octet; - unsigned int width; - unsigned int value; - int k; - - octet = string.pointer[0]; - width = (octet & 0x80) == 0x00 ? 1 : - (octet & 0xE0) == 0xC0 ? 2 : - (octet & 0xF0) == 0xE0 ? 3 : - (octet & 0xF8) == 0xF0 ? 4 : 0; - value = (octet & 0x80) == 0x00 ? octet & 0x7F : - (octet & 0xE0) == 0xC0 ? octet & 0x1F : - (octet & 0xF0) == 0xE0 ? octet & 0x0F : - (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0; - for (k = 1; k < (int)width; k ++) { - octet = string.pointer[k]; - value = (value << 6) + (octet & 0x3F); - } - string.pointer += width; - - if (!PUT(emitter, '\\')) return 0; - - switch (value) - { - case 0x00: - if (!PUT(emitter, '0')) return 0; - break; - - case 0x07: - if (!PUT(emitter, 'a')) return 0; - break; - - case 0x08: - if (!PUT(emitter, 'b')) return 0; - break; - - case 0x09: - if (!PUT(emitter, 't')) return 0; - break; - - case 0x0A: - if (!PUT(emitter, 'n')) return 0; - break; - - case 0x0B: - if (!PUT(emitter, 'v')) return 0; - break; - - case 0x0C: - if (!PUT(emitter, 'f')) return 0; - break; - - case 0x0D: - if (!PUT(emitter, 'r')) return 0; - break; - - case 0x1B: - if (!PUT(emitter, 'e')) return 0; - break; - - case 0x22: - if (!PUT(emitter, '\"')) return 0; - break; - - case 0x5C: - if (!PUT(emitter, '\\')) return 0; - break; - - case 0x85: - if (!PUT(emitter, 'N')) return 0; - break; - - case 0xA0: - if (!PUT(emitter, '_')) return 0; - break; - - case 0x2028: - if (!PUT(emitter, 'L')) return 0; - break; - - case 0x2029: - if (!PUT(emitter, 'P')) return 0; - break; - - default: - if (value <= 0xFF) { - if (!PUT(emitter, 'x')) return 0; - width = 2; - } - else if (value <= 0xFFFF) { - if (!PUT(emitter, 'u')) return 0; - width = 4; - } - else { - if (!PUT(emitter, 'U')) return 0; - width = 8; - } - for (k = (width-1)*4; k >= 0; k -= 4) { - int digit = (value >> k) & 0x0F; - if (!PUT(emitter, digit + (digit < 10 ? '0' : 'A'-10))) - return 0; - } - } - spaces = 0; - } - else if (IS_SPACE(string)) - { - if (allow_breaks && !spaces - && emitter->column > emitter->best_width - && string.pointer != string.start - && string.pointer != string.end - 1) { - if (!yaml_emitter_write_indent(emitter)) return 0; - if (IS_SPACE_AT(string, 1)) { - if (!PUT(emitter, '\\')) return 0; - } - MOVE(string); - } - else { - if (!WRITE(emitter, string)) return 0; - } - spaces = 1; - } - else - { - if (!WRITE(emitter, string)) return 0; - spaces = 0; - } - } - - if (!yaml_emitter_write_indicator(emitter, "\"", 0, 0, 0)) - return 0; - - emitter->whitespace = 0; - emitter->indention = 0; - - return 1; -} - -static int -yaml_emitter_write_block_scalar_hints(yaml_emitter_t *emitter, - yaml_string_t string) -{ - char indent_hint[2]; - char *chomp_hint = NULL; - - if (IS_SPACE(string) || IS_BREAK(string)) - { - indent_hint[0] = '0' + (char)emitter->best_indent; - indent_hint[1] = '\0'; - if (!yaml_emitter_write_indicator(emitter, indent_hint, 0, 0, 0)) - return 0; - } - - emitter->open_ended = 0; - - string.pointer = string.end; - if (string.start == string.pointer) - { - chomp_hint = "-"; - } - else - { - do { - string.pointer --; - } while ((*string.pointer & 0xC0) == 0x80); - if (!IS_BREAK(string)) - { - chomp_hint = "-"; - } - else if (string.start == string.pointer) - { - chomp_hint = "+"; - emitter->open_ended = 1; - } - else - { - do { - string.pointer --; - } while ((*string.pointer & 0xC0) == 0x80); - if (IS_BREAK(string)) - { - chomp_hint = "+"; - emitter->open_ended = 1; - } - } - } - - if (chomp_hint) - { - if (!yaml_emitter_write_indicator(emitter, chomp_hint, 0, 0, 0)) - return 0; - } - - return 1; -} - -static int -yaml_emitter_write_literal_scalar(yaml_emitter_t *emitter, - yaml_char_t *value, size_t length) -{ - yaml_string_t string; - int breaks = 1; - - STRING_ASSIGN(string, value, length); - - if (!yaml_emitter_write_indicator(emitter, "|", 1, 0, 0)) - return 0; - if (!yaml_emitter_write_block_scalar_hints(emitter, string)) - return 0; - if (!PUT_BREAK(emitter)) return 0; - emitter->indention = 1; - emitter->whitespace = 1; - - while (string.pointer != string.end) - { - if (IS_BREAK(string)) - { - if (!WRITE_BREAK(emitter, string)) return 0; - emitter->indention = 1; - breaks = 1; - } - else - { - if (breaks) { - if (!yaml_emitter_write_indent(emitter)) return 0; - } - if (!WRITE(emitter, string)) return 0; - emitter->indention = 0; - breaks = 0; - } - } - - return 1; -} - -static int -yaml_emitter_write_folded_scalar(yaml_emitter_t *emitter, - yaml_char_t *value, size_t length) -{ - yaml_string_t string; - int breaks = 1; - int leading_spaces = 1; - - STRING_ASSIGN(string, value, length); - - if (!yaml_emitter_write_indicator(emitter, ">", 1, 0, 0)) - return 0; - if (!yaml_emitter_write_block_scalar_hints(emitter, string)) - return 0; - if (!PUT_BREAK(emitter)) return 0; - emitter->indention = 1; - emitter->whitespace = 1; - - while (string.pointer != string.end) - { - if (IS_BREAK(string)) - { - if (!breaks && !leading_spaces && CHECK(string, '\n')) { - int k = 0; - while (IS_BREAK_AT(string, k)) { - k += WIDTH_AT(string, k); - } - if (!IS_BLANKZ_AT(string, k)) { - if (!PUT_BREAK(emitter)) return 0; - } - } - if (!WRITE_BREAK(emitter, string)) return 0; - emitter->indention = 1; - breaks = 1; - } - else - { - if (breaks) { - if (!yaml_emitter_write_indent(emitter)) return 0; - leading_spaces = IS_BLANK(string); - } - if (!breaks && IS_SPACE(string) && !IS_SPACE_AT(string, 1) - && emitter->column > emitter->best_width) { - if (!yaml_emitter_write_indent(emitter)) return 0; - MOVE(string); - } - else { - if (!WRITE(emitter, string)) return 0; - } - emitter->indention = 0; - breaks = 0; - } - } - - return 1; -} - diff --git a/ruby_2_2/ext/psych/yaml/loader.c b/ruby_2_2/ext/psych/yaml/loader.c deleted file mode 100644 index 3ba99f087e..0000000000 --- a/ruby_2_2/ext/psych/yaml/loader.c +++ /dev/null @@ -1,444 +0,0 @@ - -#include "yaml_private.h" - -/* - * API functions. - */ - -YAML_DECLARE(int) -yaml_parser_load(yaml_parser_t *parser, yaml_document_t *document); - -/* - * Error handling. - */ - -static int -yaml_parser_set_composer_error(yaml_parser_t *parser, - const char *problem, yaml_mark_t problem_mark); - -static int -yaml_parser_set_composer_error_context(yaml_parser_t *parser, - const char *context, yaml_mark_t context_mark, - const char *problem, yaml_mark_t problem_mark); - - -/* - * Alias handling. - */ - -static int -yaml_parser_register_anchor(yaml_parser_t *parser, - int index, yaml_char_t *anchor); - -/* - * Clean up functions. - */ - -static void -yaml_parser_delete_aliases(yaml_parser_t *parser); - -/* - * Composer functions. - */ - -static int -yaml_parser_load_document(yaml_parser_t *parser, yaml_event_t *first_event); - -static int -yaml_parser_load_node(yaml_parser_t *parser, yaml_event_t *first_event); - -static int -yaml_parser_load_alias(yaml_parser_t *parser, yaml_event_t *first_event); - -static int -yaml_parser_load_scalar(yaml_parser_t *parser, yaml_event_t *first_event); - -static int -yaml_parser_load_sequence(yaml_parser_t *parser, yaml_event_t *first_event); - -static int -yaml_parser_load_mapping(yaml_parser_t *parser, yaml_event_t *first_event); - -/* - * Load the next document of the stream. - */ - -YAML_DECLARE(int) -yaml_parser_load(yaml_parser_t *parser, yaml_document_t *document) -{ - yaml_event_t event; - - assert(parser); /* Non-NULL parser object is expected. */ - assert(document); /* Non-NULL document object is expected. */ - - memset(document, 0, sizeof(yaml_document_t)); - if (!STACK_INIT(parser, document->nodes, INITIAL_STACK_SIZE)) - goto error; - - if (!parser->stream_start_produced) { - if (!yaml_parser_parse(parser, &event)) goto error; - assert(event.type == YAML_STREAM_START_EVENT); - /* STREAM-START is expected. */ - } - - if (parser->stream_end_produced) { - return 1; - } - - if (!yaml_parser_parse(parser, &event)) goto error; - if (event.type == YAML_STREAM_END_EVENT) { - return 1; - } - - if (!STACK_INIT(parser, parser->aliases, INITIAL_STACK_SIZE)) - goto error; - - parser->document = document; - - if (!yaml_parser_load_document(parser, &event)) goto error; - - yaml_parser_delete_aliases(parser); - parser->document = NULL; - - return 1; - -error: - - yaml_parser_delete_aliases(parser); - yaml_document_delete(document); - parser->document = NULL; - - return 0; -} - -/* - * Set composer error. - */ - -static int -yaml_parser_set_composer_error(yaml_parser_t *parser, - const char *problem, yaml_mark_t problem_mark) -{ - parser->error = YAML_COMPOSER_ERROR; - parser->problem = problem; - parser->problem_mark = problem_mark; - - return 0; -} - -/* - * Set composer error with context. - */ - -static int -yaml_parser_set_composer_error_context(yaml_parser_t *parser, - const char *context, yaml_mark_t context_mark, - const char *problem, yaml_mark_t problem_mark) -{ - parser->error = YAML_COMPOSER_ERROR; - parser->context = context; - parser->context_mark = context_mark; - parser->problem = problem; - parser->problem_mark = problem_mark; - - return 0; -} - -/* - * Delete the stack of aliases. - */ - -static void -yaml_parser_delete_aliases(yaml_parser_t *parser) -{ - while (!STACK_EMPTY(parser, parser->aliases)) { - yaml_free(POP(parser, parser->aliases).anchor); - } - STACK_DEL(parser, parser->aliases); -} - -/* - * Compose a document object. - */ - -static int -yaml_parser_load_document(yaml_parser_t *parser, yaml_event_t *first_event) -{ - yaml_event_t event; - - assert(first_event->type == YAML_DOCUMENT_START_EVENT); - /* DOCUMENT-START is expected. */ - - parser->document->version_directive - = first_event->data.document_start.version_directive; - parser->document->tag_directives.start - = first_event->data.document_start.tag_directives.start; - parser->document->tag_directives.end - = first_event->data.document_start.tag_directives.end; - parser->document->start_implicit - = first_event->data.document_start.implicit; - parser->document->start_mark = first_event->start_mark; - - if (!yaml_parser_parse(parser, &event)) return 0; - - if (!yaml_parser_load_node(parser, &event)) return 0; - - if (!yaml_parser_parse(parser, &event)) return 0; - assert(event.type == YAML_DOCUMENT_END_EVENT); - /* DOCUMENT-END is expected. */ - - parser->document->end_implicit = event.data.document_end.implicit; - parser->document->end_mark = event.end_mark; - - return 1; -} - -/* - * Compose a node. - */ - -static int -yaml_parser_load_node(yaml_parser_t *parser, yaml_event_t *first_event) -{ - switch (first_event->type) { - case YAML_ALIAS_EVENT: - return yaml_parser_load_alias(parser, first_event); - case YAML_SCALAR_EVENT: - return yaml_parser_load_scalar(parser, first_event); - case YAML_SEQUENCE_START_EVENT: - return yaml_parser_load_sequence(parser, first_event); - case YAML_MAPPING_START_EVENT: - return yaml_parser_load_mapping(parser, first_event); - default: - assert(0); /* Could not happen. */ - return 0; - } - - return 0; -} - -/* - * Add an anchor. - */ - -static int -yaml_parser_register_anchor(yaml_parser_t *parser, - int index, yaml_char_t *anchor) -{ - yaml_alias_data_t data; - yaml_alias_data_t *alias_data; - - if (!anchor) return 1; - - data.anchor = anchor; - data.index = index; - data.mark = parser->document->nodes.start[index-1].start_mark; - - for (alias_data = parser->aliases.start; - alias_data != parser->aliases.top; alias_data ++) { - if (strcmp((char *)alias_data->anchor, (char *)anchor) == 0) { - yaml_free(anchor); - return yaml_parser_set_composer_error_context(parser, - "found duplicate anchor; first occurrence", - alias_data->mark, "second occurrence", data.mark); - } - } - - if (!PUSH(parser, parser->aliases, data)) { - yaml_free(anchor); - return 0; - } - - return 1; -} - -/* - * Compose a node corresponding to an alias. - */ - -static int -yaml_parser_load_alias(yaml_parser_t *parser, yaml_event_t *first_event) -{ - yaml_char_t *anchor = first_event->data.alias.anchor; - yaml_alias_data_t *alias_data; - - for (alias_data = parser->aliases.start; - alias_data != parser->aliases.top; alias_data ++) { - if (strcmp((char *)alias_data->anchor, (char *)anchor) == 0) { - yaml_free(anchor); - return alias_data->index; - } - } - - yaml_free(anchor); - return yaml_parser_set_composer_error(parser, "found undefined alias", - first_event->start_mark); -} - -/* - * Compose a scalar node. - */ - -static int -yaml_parser_load_scalar(yaml_parser_t *parser, yaml_event_t *first_event) -{ - yaml_node_t node; - int index; - yaml_char_t *tag = first_event->data.scalar.tag; - - if (!STACK_LIMIT(parser, parser->document->nodes, INT_MAX-1)) goto error; - - if (!tag || strcmp((char *)tag, "!") == 0) { - yaml_free(tag); - tag = yaml_strdup((yaml_char_t *)YAML_DEFAULT_SCALAR_TAG); - if (!tag) goto error; - } - - SCALAR_NODE_INIT(node, tag, first_event->data.scalar.value, - first_event->data.scalar.length, first_event->data.scalar.style, - first_event->start_mark, first_event->end_mark); - - if (!PUSH(parser, parser->document->nodes, node)) goto error; - - index = parser->document->nodes.top - parser->document->nodes.start; - - if (!yaml_parser_register_anchor(parser, index, - first_event->data.scalar.anchor)) return 0; - - return index; - -error: - yaml_free(tag); - yaml_free(first_event->data.scalar.anchor); - yaml_free(first_event->data.scalar.value); - return 0; -} - -/* - * Compose a sequence node. - */ - -static int -yaml_parser_load_sequence(yaml_parser_t *parser, yaml_event_t *first_event) -{ - yaml_event_t event; - yaml_node_t node; - struct { - yaml_node_item_t *start; - yaml_node_item_t *end; - yaml_node_item_t *top; - } items = { NULL, NULL, NULL }; - int index, item_index; - yaml_char_t *tag = first_event->data.sequence_start.tag; - - if (!STACK_LIMIT(parser, parser->document->nodes, INT_MAX-1)) goto error; - - if (!tag || strcmp((char *)tag, "!") == 0) { - yaml_free(tag); - tag = yaml_strdup((yaml_char_t *)YAML_DEFAULT_SEQUENCE_TAG); - if (!tag) goto error; - } - - if (!STACK_INIT(parser, items, INITIAL_STACK_SIZE)) goto error; - - SEQUENCE_NODE_INIT(node, tag, items.start, items.end, - first_event->data.sequence_start.style, - first_event->start_mark, first_event->end_mark); - - if (!PUSH(parser, parser->document->nodes, node)) goto error; - - index = parser->document->nodes.top - parser->document->nodes.start; - - if (!yaml_parser_register_anchor(parser, index, - first_event->data.sequence_start.anchor)) return 0; - - if (!yaml_parser_parse(parser, &event)) return 0; - - while (event.type != YAML_SEQUENCE_END_EVENT) { - if (!STACK_LIMIT(parser, - parser->document->nodes.start[index-1].data.sequence.items, - INT_MAX-1)) return 0; - item_index = yaml_parser_load_node(parser, &event); - if (!item_index) return 0; - if (!PUSH(parser, - parser->document->nodes.start[index-1].data.sequence.items, - item_index)) return 0; - if (!yaml_parser_parse(parser, &event)) return 0; - } - - parser->document->nodes.start[index-1].end_mark = event.end_mark; - - return index; - -error: - yaml_free(tag); - yaml_free(first_event->data.sequence_start.anchor); - return 0; -} - -/* - * Compose a mapping node. - */ - -static int -yaml_parser_load_mapping(yaml_parser_t *parser, yaml_event_t *first_event) -{ - yaml_event_t event; - yaml_node_t node; - struct { - yaml_node_pair_t *start; - yaml_node_pair_t *end; - yaml_node_pair_t *top; - } pairs = { NULL, NULL, NULL }; - int index; - yaml_node_pair_t pair; - yaml_char_t *tag = first_event->data.mapping_start.tag; - - if (!STACK_LIMIT(parser, parser->document->nodes, INT_MAX-1)) goto error; - - if (!tag || strcmp((char *)tag, "!") == 0) { - yaml_free(tag); - tag = yaml_strdup((yaml_char_t *)YAML_DEFAULT_MAPPING_TAG); - if (!tag) goto error; - } - - if (!STACK_INIT(parser, pairs, INITIAL_STACK_SIZE)) goto error; - - MAPPING_NODE_INIT(node, tag, pairs.start, pairs.end, - first_event->data.mapping_start.style, - first_event->start_mark, first_event->end_mark); - - if (!PUSH(parser, parser->document->nodes, node)) goto error; - - index = parser->document->nodes.top - parser->document->nodes.start; - - if (!yaml_parser_register_anchor(parser, index, - first_event->data.mapping_start.anchor)) return 0; - - if (!yaml_parser_parse(parser, &event)) return 0; - - while (event.type != YAML_MAPPING_END_EVENT) { - if (!STACK_LIMIT(parser, - parser->document->nodes.start[index-1].data.mapping.pairs, - INT_MAX-1)) return 0; - pair.key = yaml_parser_load_node(parser, &event); - if (!pair.key) return 0; - if (!yaml_parser_parse(parser, &event)) return 0; - pair.value = yaml_parser_load_node(parser, &event); - if (!pair.value) return 0; - if (!PUSH(parser, - parser->document->nodes.start[index-1].data.mapping.pairs, - pair)) return 0; - if (!yaml_parser_parse(parser, &event)) return 0; - } - - parser->document->nodes.start[index-1].end_mark = event.end_mark; - - return index; - -error: - yaml_free(tag); - yaml_free(first_event->data.mapping_start.anchor); - return 0; -} - diff --git a/ruby_2_2/ext/psych/yaml/parser.c b/ruby_2_2/ext/psych/yaml/parser.c deleted file mode 100644 index dc5430b09f..0000000000 --- a/ruby_2_2/ext/psych/yaml/parser.c +++ /dev/null @@ -1,1374 +0,0 @@ - -/* - * The parser implements the following grammar: - * - * stream ::= STREAM-START implicit_document? explicit_document* STREAM-END - * implicit_document ::= block_node DOCUMENT-END* - * explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END* - * block_node_or_indentless_sequence ::= - * ALIAS - * | properties (block_content | indentless_block_sequence)? - * | block_content - * | indentless_block_sequence - * block_node ::= ALIAS - * | properties block_content? - * | block_content - * flow_node ::= ALIAS - * | properties flow_content? - * | flow_content - * properties ::= TAG ANCHOR? | ANCHOR TAG? - * block_content ::= block_collection | flow_collection | SCALAR - * flow_content ::= flow_collection | SCALAR - * block_collection ::= block_sequence | block_mapping - * flow_collection ::= flow_sequence | flow_mapping - * block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END - * indentless_sequence ::= (BLOCK-ENTRY block_node?)+ - * block_mapping ::= BLOCK-MAPPING_START - * ((KEY block_node_or_indentless_sequence?)? - * (VALUE block_node_or_indentless_sequence?)?)* - * BLOCK-END - * flow_sequence ::= FLOW-SEQUENCE-START - * (flow_sequence_entry FLOW-ENTRY)* - * flow_sequence_entry? - * FLOW-SEQUENCE-END - * flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? - * flow_mapping ::= FLOW-MAPPING-START - * (flow_mapping_entry FLOW-ENTRY)* - * flow_mapping_entry? - * FLOW-MAPPING-END - * flow_mapping_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? - */ - -#include "yaml_private.h" - -/* - * Peek the next token in the token queue. - */ - -#define PEEK_TOKEN(parser) \ - ((parser->token_available || yaml_parser_fetch_more_tokens(parser)) ? \ - parser->tokens.head : NULL) - -/* - * Remove the next token from the queue (must be called after PEEK_TOKEN). - */ - -#define SKIP_TOKEN(parser) \ - (parser->token_available = 0, \ - parser->tokens_parsed ++, \ - parser->stream_end_produced = \ - (parser->tokens.head->type == YAML_STREAM_END_TOKEN), \ - parser->tokens.head ++) - -/* - * Public API declarations. - */ - -YAML_DECLARE(int) -yaml_parser_parse(yaml_parser_t *parser, yaml_event_t *event); - -/* - * Error handling. - */ - -static int -yaml_parser_set_parser_error(yaml_parser_t *parser, - const char *problem, yaml_mark_t problem_mark); - -static int -yaml_parser_set_parser_error_context(yaml_parser_t *parser, - const char *context, yaml_mark_t context_mark, - const char *problem, yaml_mark_t problem_mark); - -/* - * State functions. - */ - -static int -yaml_parser_state_machine(yaml_parser_t *parser, yaml_event_t *event); - -static int -yaml_parser_parse_stream_start(yaml_parser_t *parser, yaml_event_t *event); - -static int -yaml_parser_parse_document_start(yaml_parser_t *parser, yaml_event_t *event, - int implicit); - -static int -yaml_parser_parse_document_content(yaml_parser_t *parser, yaml_event_t *event); - -static int -yaml_parser_parse_document_end(yaml_parser_t *parser, yaml_event_t *event); - -static int -yaml_parser_parse_node(yaml_parser_t *parser, yaml_event_t *event, - int block, int indentless_sequence); - -static int -yaml_parser_parse_block_sequence_entry(yaml_parser_t *parser, - yaml_event_t *event, int first); - -static int -yaml_parser_parse_indentless_sequence_entry(yaml_parser_t *parser, - yaml_event_t *event); - -static int -yaml_parser_parse_block_mapping_key(yaml_parser_t *parser, - yaml_event_t *event, int first); - -static int -yaml_parser_parse_block_mapping_value(yaml_parser_t *parser, - yaml_event_t *event); - -static int -yaml_parser_parse_flow_sequence_entry(yaml_parser_t *parser, - yaml_event_t *event, int first); - -static int -yaml_parser_parse_flow_sequence_entry_mapping_key(yaml_parser_t *parser, - yaml_event_t *event); - -static int -yaml_parser_parse_flow_sequence_entry_mapping_value(yaml_parser_t *parser, - yaml_event_t *event); - -static int -yaml_parser_parse_flow_sequence_entry_mapping_end(yaml_parser_t *parser, - yaml_event_t *event); - -static int -yaml_parser_parse_flow_mapping_key(yaml_parser_t *parser, - yaml_event_t *event, int first); - -static int -yaml_parser_parse_flow_mapping_value(yaml_parser_t *parser, - yaml_event_t *event, int empty); - -/* - * Utility functions. - */ - -static int -yaml_parser_process_empty_scalar(yaml_parser_t *parser, - yaml_event_t *event, yaml_mark_t mark); - -static int -yaml_parser_process_directives(yaml_parser_t *parser, - yaml_version_directive_t **version_directive_ref, - yaml_tag_directive_t **tag_directives_start_ref, - yaml_tag_directive_t **tag_directives_end_ref); - -static int -yaml_parser_append_tag_directive(yaml_parser_t *parser, - yaml_tag_directive_t value, int allow_duplicates, yaml_mark_t mark); - -/* - * Get the next event. - */ - -YAML_DECLARE(int) -yaml_parser_parse(yaml_parser_t *parser, yaml_event_t *event) -{ - assert(parser); /* Non-NULL parser object is expected. */ - assert(event); /* Non-NULL event object is expected. */ - - /* Erase the event object. */ - - memset(event, 0, sizeof(yaml_event_t)); - - /* No events after the end of the stream or error. */ - - if (parser->stream_end_produced || parser->error || - parser->state == YAML_PARSE_END_STATE) { - return 1; - } - - /* Generate the next event. */ - - return yaml_parser_state_machine(parser, event); -} - -/* - * Set parser error. - */ - -static int -yaml_parser_set_parser_error(yaml_parser_t *parser, - const char *problem, yaml_mark_t problem_mark) -{ - parser->error = YAML_PARSER_ERROR; - parser->problem = problem; - parser->problem_mark = problem_mark; - - return 0; -} - -static int -yaml_parser_set_parser_error_context(yaml_parser_t *parser, - const char *context, yaml_mark_t context_mark, - const char *problem, yaml_mark_t problem_mark) -{ - parser->error = YAML_PARSER_ERROR; - parser->context = context; - parser->context_mark = context_mark; - parser->problem = problem; - parser->problem_mark = problem_mark; - - return 0; -} - - -/* - * State dispatcher. - */ - -static int -yaml_parser_state_machine(yaml_parser_t *parser, yaml_event_t *event) -{ - switch (parser->state) - { - case YAML_PARSE_STREAM_START_STATE: - return yaml_parser_parse_stream_start(parser, event); - - case YAML_PARSE_IMPLICIT_DOCUMENT_START_STATE: - return yaml_parser_parse_document_start(parser, event, 1); - - case YAML_PARSE_DOCUMENT_START_STATE: - return yaml_parser_parse_document_start(parser, event, 0); - - case YAML_PARSE_DOCUMENT_CONTENT_STATE: - return yaml_parser_parse_document_content(parser, event); - - case YAML_PARSE_DOCUMENT_END_STATE: - return yaml_parser_parse_document_end(parser, event); - - case YAML_PARSE_BLOCK_NODE_STATE: - return yaml_parser_parse_node(parser, event, 1, 0); - - case YAML_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE: - return yaml_parser_parse_node(parser, event, 1, 1); - - case YAML_PARSE_FLOW_NODE_STATE: - return yaml_parser_parse_node(parser, event, 0, 0); - - case YAML_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE: - return yaml_parser_parse_block_sequence_entry(parser, event, 1); - - case YAML_PARSE_BLOCK_SEQUENCE_ENTRY_STATE: - return yaml_parser_parse_block_sequence_entry(parser, event, 0); - - case YAML_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE: - return yaml_parser_parse_indentless_sequence_entry(parser, event); - - case YAML_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE: - return yaml_parser_parse_block_mapping_key(parser, event, 1); - - case YAML_PARSE_BLOCK_MAPPING_KEY_STATE: - return yaml_parser_parse_block_mapping_key(parser, event, 0); - - case YAML_PARSE_BLOCK_MAPPING_VALUE_STATE: - return yaml_parser_parse_block_mapping_value(parser, event); - - case YAML_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE: - return yaml_parser_parse_flow_sequence_entry(parser, event, 1); - - case YAML_PARSE_FLOW_SEQUENCE_ENTRY_STATE: - return yaml_parser_parse_flow_sequence_entry(parser, event, 0); - - case YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE: - return yaml_parser_parse_flow_sequence_entry_mapping_key(parser, event); - - case YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE: - return yaml_parser_parse_flow_sequence_entry_mapping_value(parser, event); - - case YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE: - return yaml_parser_parse_flow_sequence_entry_mapping_end(parser, event); - - case YAML_PARSE_FLOW_MAPPING_FIRST_KEY_STATE: - return yaml_parser_parse_flow_mapping_key(parser, event, 1); - - case YAML_PARSE_FLOW_MAPPING_KEY_STATE: - return yaml_parser_parse_flow_mapping_key(parser, event, 0); - - case YAML_PARSE_FLOW_MAPPING_VALUE_STATE: - return yaml_parser_parse_flow_mapping_value(parser, event, 0); - - case YAML_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE: - return yaml_parser_parse_flow_mapping_value(parser, event, 1); - - default: - assert(1); /* Invalid state. */ - } - - return 0; -} - -/* - * Parse the production: - * stream ::= STREAM-START implicit_document? explicit_document* STREAM-END - * ************ - */ - -static int -yaml_parser_parse_stream_start(yaml_parser_t *parser, yaml_event_t *event) -{ - yaml_token_t *token; - - token = PEEK_TOKEN(parser); - if (!token) return 0; - - if (token->type != YAML_STREAM_START_TOKEN) { - return yaml_parser_set_parser_error(parser, - "did not find expected <stream-start>", token->start_mark); - } - - parser->state = YAML_PARSE_IMPLICIT_DOCUMENT_START_STATE; - STREAM_START_EVENT_INIT(*event, token->data.stream_start.encoding, - token->start_mark, token->start_mark); - SKIP_TOKEN(parser); - - return 1; -} - -/* - * Parse the productions: - * implicit_document ::= block_node DOCUMENT-END* - * * - * explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END* - * ************************* - */ - -static int -yaml_parser_parse_document_start(yaml_parser_t *parser, yaml_event_t *event, - int implicit) -{ - yaml_token_t *token; - yaml_version_directive_t *version_directive = NULL; - struct { - yaml_tag_directive_t *start; - yaml_tag_directive_t *end; - } tag_directives = { NULL, NULL }; - - token = PEEK_TOKEN(parser); - if (!token) return 0; - - /* Parse extra document end indicators. */ - - if (!implicit) - { - while (token->type == YAML_DOCUMENT_END_TOKEN) { - SKIP_TOKEN(parser); - token = PEEK_TOKEN(parser); - if (!token) return 0; - } - } - - /* Parse an implicit document. */ - - if (implicit && token->type != YAML_VERSION_DIRECTIVE_TOKEN && - token->type != YAML_TAG_DIRECTIVE_TOKEN && - token->type != YAML_DOCUMENT_START_TOKEN && - token->type != YAML_STREAM_END_TOKEN) - { - if (!yaml_parser_process_directives(parser, NULL, NULL, NULL)) - return 0; - if (!PUSH(parser, parser->states, YAML_PARSE_DOCUMENT_END_STATE)) - return 0; - parser->state = YAML_PARSE_BLOCK_NODE_STATE; - DOCUMENT_START_EVENT_INIT(*event, NULL, NULL, NULL, 1, - token->start_mark, token->start_mark); - return 1; - } - - /* Parse an explicit document. */ - - else if (token->type != YAML_STREAM_END_TOKEN) - { - yaml_mark_t start_mark, end_mark; - start_mark = token->start_mark; - if (!yaml_parser_process_directives(parser, &version_directive, - &tag_directives.start, &tag_directives.end)) - return 0; - token = PEEK_TOKEN(parser); - if (!token) goto error; - if (token->type != YAML_DOCUMENT_START_TOKEN) { - yaml_parser_set_parser_error(parser, - "did not find expected <document start>", token->start_mark); - goto error; - } - if (!PUSH(parser, parser->states, YAML_PARSE_DOCUMENT_END_STATE)) - goto error; - parser->state = YAML_PARSE_DOCUMENT_CONTENT_STATE; - end_mark = token->end_mark; - DOCUMENT_START_EVENT_INIT(*event, version_directive, - tag_directives.start, tag_directives.end, 0, - start_mark, end_mark); - SKIP_TOKEN(parser); - version_directive = NULL; - tag_directives.start = tag_directives.end = NULL; - return 1; - } - - /* Parse the stream end. */ - - else - { - parser->state = YAML_PARSE_END_STATE; - STREAM_END_EVENT_INIT(*event, token->start_mark, token->end_mark); - SKIP_TOKEN(parser); - return 1; - } - -error: - yaml_free(version_directive); - while (tag_directives.start != tag_directives.end) { - yaml_free(tag_directives.end[-1].handle); - yaml_free(tag_directives.end[-1].prefix); - tag_directives.end --; - } - yaml_free(tag_directives.start); - return 0; -} - -/* - * Parse the productions: - * explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END* - * *********** - */ - -static int -yaml_parser_parse_document_content(yaml_parser_t *parser, yaml_event_t *event) -{ - yaml_token_t *token; - - token = PEEK_TOKEN(parser); - if (!token) return 0; - - if (token->type == YAML_VERSION_DIRECTIVE_TOKEN || - token->type == YAML_TAG_DIRECTIVE_TOKEN || - token->type == YAML_DOCUMENT_START_TOKEN || - token->type == YAML_DOCUMENT_END_TOKEN || - token->type == YAML_STREAM_END_TOKEN) { - parser->state = POP(parser, parser->states); - return yaml_parser_process_empty_scalar(parser, event, - token->start_mark); - } - else { - return yaml_parser_parse_node(parser, event, 1, 0); - } -} - -/* - * Parse the productions: - * implicit_document ::= block_node DOCUMENT-END* - * ************* - * explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END* - * ************* - */ - -static int -yaml_parser_parse_document_end(yaml_parser_t *parser, yaml_event_t *event) -{ - yaml_token_t *token; - yaml_mark_t start_mark, end_mark; - int implicit = 1; - - token = PEEK_TOKEN(parser); - if (!token) return 0; - - start_mark = end_mark = token->start_mark; - - if (token->type == YAML_DOCUMENT_END_TOKEN) { - end_mark = token->end_mark; - SKIP_TOKEN(parser); - implicit = 0; - } - - while (!STACK_EMPTY(parser, parser->tag_directives)) { - yaml_tag_directive_t tag_directive = POP(parser, parser->tag_directives); - yaml_free(tag_directive.handle); - yaml_free(tag_directive.prefix); - } - - parser->state = YAML_PARSE_DOCUMENT_START_STATE; - DOCUMENT_END_EVENT_INIT(*event, implicit, start_mark, end_mark); - - return 1; -} - -/* - * Parse the productions: - * block_node_or_indentless_sequence ::= - * ALIAS - * ***** - * | properties (block_content | indentless_block_sequence)? - * ********** * - * | block_content | indentless_block_sequence - * * - * block_node ::= ALIAS - * ***** - * | properties block_content? - * ********** * - * | block_content - * * - * flow_node ::= ALIAS - * ***** - * | properties flow_content? - * ********** * - * | flow_content - * * - * properties ::= TAG ANCHOR? | ANCHOR TAG? - * ************************* - * block_content ::= block_collection | flow_collection | SCALAR - * ****** - * flow_content ::= flow_collection | SCALAR - * ****** - */ - -static int -yaml_parser_parse_node(yaml_parser_t *parser, yaml_event_t *event, - int block, int indentless_sequence) -{ - yaml_token_t *token; - yaml_char_t *anchor = NULL; - yaml_char_t *tag_handle = NULL; - yaml_char_t *tag_suffix = NULL; - yaml_char_t *tag = NULL; - yaml_mark_t start_mark, end_mark, tag_mark; - int implicit; - - token = PEEK_TOKEN(parser); - if (!token) return 0; - - if (token->type == YAML_ALIAS_TOKEN) - { - parser->state = POP(parser, parser->states); - ALIAS_EVENT_INIT(*event, token->data.alias.value, - token->start_mark, token->end_mark); - SKIP_TOKEN(parser); - return 1; - } - - else - { - start_mark = end_mark = token->start_mark; - - if (token->type == YAML_ANCHOR_TOKEN) - { - anchor = token->data.anchor.value; - start_mark = token->start_mark; - end_mark = token->end_mark; - SKIP_TOKEN(parser); - token = PEEK_TOKEN(parser); - if (!token) goto error; - if (token->type == YAML_TAG_TOKEN) - { - tag_handle = token->data.tag.handle; - tag_suffix = token->data.tag.suffix; - tag_mark = token->start_mark; - end_mark = token->end_mark; - SKIP_TOKEN(parser); - token = PEEK_TOKEN(parser); - if (!token) goto error; - } - } - else if (token->type == YAML_TAG_TOKEN) - { - tag_handle = token->data.tag.handle; - tag_suffix = token->data.tag.suffix; - start_mark = tag_mark = token->start_mark; - end_mark = token->end_mark; - SKIP_TOKEN(parser); - token = PEEK_TOKEN(parser); - if (!token) goto error; - if (token->type == YAML_ANCHOR_TOKEN) - { - anchor = token->data.anchor.value; - end_mark = token->end_mark; - SKIP_TOKEN(parser); - token = PEEK_TOKEN(parser); - if (!token) goto error; - } - } - - if (tag_handle) { - if (!*tag_handle) { - tag = tag_suffix; - yaml_free(tag_handle); - tag_handle = tag_suffix = NULL; - } - else { - yaml_tag_directive_t *tag_directive; - for (tag_directive = parser->tag_directives.start; - tag_directive != parser->tag_directives.top; - tag_directive ++) { - if (strcmp((char *)tag_directive->handle, (char *)tag_handle) == 0) { - size_t prefix_len = strlen((char *)tag_directive->prefix); - size_t suffix_len = strlen((char *)tag_suffix); - tag = yaml_malloc(prefix_len+suffix_len+1); - if (!tag) { - parser->error = YAML_MEMORY_ERROR; - goto error; - } - memcpy(tag, tag_directive->prefix, prefix_len); - memcpy(tag+prefix_len, tag_suffix, suffix_len); - tag[prefix_len+suffix_len] = '\0'; - yaml_free(tag_handle); - yaml_free(tag_suffix); - tag_handle = tag_suffix = NULL; - break; - } - } - if (!tag) { - yaml_parser_set_parser_error_context(parser, - "while parsing a node", start_mark, - "found undefined tag handle", tag_mark); - goto error; - } - } - } - - implicit = (!tag || !*tag); - if (indentless_sequence && token->type == YAML_BLOCK_ENTRY_TOKEN) { - end_mark = token->end_mark; - parser->state = YAML_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE; - SEQUENCE_START_EVENT_INIT(*event, anchor, tag, implicit, - YAML_BLOCK_SEQUENCE_STYLE, start_mark, end_mark); - return 1; - } - else { - if (token->type == YAML_SCALAR_TOKEN) { - int plain_implicit = 0; - int quoted_implicit = 0; - end_mark = token->end_mark; - if ((token->data.scalar.style == YAML_PLAIN_SCALAR_STYLE && !tag) - || (tag && strcmp((char *)tag, "!") == 0)) { - plain_implicit = 1; - } - else if (!tag) { - quoted_implicit = 1; - } - parser->state = POP(parser, parser->states); - SCALAR_EVENT_INIT(*event, anchor, tag, - token->data.scalar.value, token->data.scalar.length, - plain_implicit, quoted_implicit, - token->data.scalar.style, start_mark, end_mark); - SKIP_TOKEN(parser); - return 1; - } - else if (token->type == YAML_FLOW_SEQUENCE_START_TOKEN) { - end_mark = token->end_mark; - parser->state = YAML_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE; - SEQUENCE_START_EVENT_INIT(*event, anchor, tag, implicit, - YAML_FLOW_SEQUENCE_STYLE, start_mark, end_mark); - return 1; - } - else if (token->type == YAML_FLOW_MAPPING_START_TOKEN) { - end_mark = token->end_mark; - parser->state = YAML_PARSE_FLOW_MAPPING_FIRST_KEY_STATE; - MAPPING_START_EVENT_INIT(*event, anchor, tag, implicit, - YAML_FLOW_MAPPING_STYLE, start_mark, end_mark); - return 1; - } - else if (block && token->type == YAML_BLOCK_SEQUENCE_START_TOKEN) { - end_mark = token->end_mark; - parser->state = YAML_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE; - SEQUENCE_START_EVENT_INIT(*event, anchor, tag, implicit, - YAML_BLOCK_SEQUENCE_STYLE, start_mark, end_mark); - return 1; - } - else if (block && token->type == YAML_BLOCK_MAPPING_START_TOKEN) { - end_mark = token->end_mark; - parser->state = YAML_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE; - MAPPING_START_EVENT_INIT(*event, anchor, tag, implicit, - YAML_BLOCK_MAPPING_STYLE, start_mark, end_mark); - return 1; - } - else if (anchor || tag) { - yaml_char_t *value = yaml_malloc(1); - if (!value) { - parser->error = YAML_MEMORY_ERROR; - goto error; - } - value[0] = '\0'; - parser->state = POP(parser, parser->states); - SCALAR_EVENT_INIT(*event, anchor, tag, value, 0, - implicit, 0, YAML_PLAIN_SCALAR_STYLE, - start_mark, end_mark); - return 1; - } - else { - yaml_parser_set_parser_error_context(parser, - (block ? "while parsing a block node" - : "while parsing a flow node"), start_mark, - "did not find expected node content", token->start_mark); - goto error; - } - } - } - -error: - yaml_free(anchor); - yaml_free(tag_handle); - yaml_free(tag_suffix); - yaml_free(tag); - - return 0; -} - -/* - * Parse the productions: - * block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END - * ******************** *********** * ********* - */ - -static int -yaml_parser_parse_block_sequence_entry(yaml_parser_t *parser, - yaml_event_t *event, int first) -{ - yaml_token_t *token; - - if (first) { - token = PEEK_TOKEN(parser); - if (!PUSH(parser, parser->marks, token->start_mark)) - return 0; - SKIP_TOKEN(parser); - } - - token = PEEK_TOKEN(parser); - if (!token) return 0; - - if (token->type == YAML_BLOCK_ENTRY_TOKEN) - { - yaml_mark_t mark = token->end_mark; - SKIP_TOKEN(parser); - token = PEEK_TOKEN(parser); - if (!token) return 0; - if (token->type != YAML_BLOCK_ENTRY_TOKEN && - token->type != YAML_BLOCK_END_TOKEN) { - if (!PUSH(parser, parser->states, - YAML_PARSE_BLOCK_SEQUENCE_ENTRY_STATE)) - return 0; - return yaml_parser_parse_node(parser, event, 1, 0); - } - else { - parser->state = YAML_PARSE_BLOCK_SEQUENCE_ENTRY_STATE; - return yaml_parser_process_empty_scalar(parser, event, mark); - } - } - - else if (token->type == YAML_BLOCK_END_TOKEN) - { - yaml_mark_t dummy_mark; /* Used to eliminate a compiler warning. */ - parser->state = POP(parser, parser->states); - dummy_mark = POP(parser, parser->marks); - SEQUENCE_END_EVENT_INIT(*event, token->start_mark, token->end_mark); - SKIP_TOKEN(parser); - return 1; - } - - else - { - return yaml_parser_set_parser_error_context(parser, - "while parsing a block collection", POP(parser, parser->marks), - "did not find expected '-' indicator", token->start_mark); - } -} - -/* - * Parse the productions: - * indentless_sequence ::= (BLOCK-ENTRY block_node?)+ - * *********** * - */ - -static int -yaml_parser_parse_indentless_sequence_entry(yaml_parser_t *parser, - yaml_event_t *event) -{ - yaml_token_t *token; - - token = PEEK_TOKEN(parser); - if (!token) return 0; - - if (token->type == YAML_BLOCK_ENTRY_TOKEN) - { - yaml_mark_t mark = token->end_mark; - SKIP_TOKEN(parser); - token = PEEK_TOKEN(parser); - if (!token) return 0; - if (token->type != YAML_BLOCK_ENTRY_TOKEN && - token->type != YAML_KEY_TOKEN && - token->type != YAML_VALUE_TOKEN && - token->type != YAML_BLOCK_END_TOKEN) { - if (!PUSH(parser, parser->states, - YAML_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE)) - return 0; - return yaml_parser_parse_node(parser, event, 1, 0); - } - else { - parser->state = YAML_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE; - return yaml_parser_process_empty_scalar(parser, event, mark); - } - } - - else - { - parser->state = POP(parser, parser->states); - SEQUENCE_END_EVENT_INIT(*event, token->start_mark, token->start_mark); - return 1; - } -} - -/* - * Parse the productions: - * block_mapping ::= BLOCK-MAPPING_START - * ******************* - * ((KEY block_node_or_indentless_sequence?)? - * *** * - * (VALUE block_node_or_indentless_sequence?)?)* - * - * BLOCK-END - * ********* - */ - -static int -yaml_parser_parse_block_mapping_key(yaml_parser_t *parser, - yaml_event_t *event, int first) -{ - yaml_token_t *token; - - if (first) { - token = PEEK_TOKEN(parser); - if (!PUSH(parser, parser->marks, token->start_mark)) - return 0; - SKIP_TOKEN(parser); - } - - token = PEEK_TOKEN(parser); - if (!token) return 0; - - if (token->type == YAML_KEY_TOKEN) - { - yaml_mark_t mark = token->end_mark; - SKIP_TOKEN(parser); - token = PEEK_TOKEN(parser); - if (!token) return 0; - if (token->type != YAML_KEY_TOKEN && - token->type != YAML_VALUE_TOKEN && - token->type != YAML_BLOCK_END_TOKEN) { - if (!PUSH(parser, parser->states, - YAML_PARSE_BLOCK_MAPPING_VALUE_STATE)) - return 0; - return yaml_parser_parse_node(parser, event, 1, 1); - } - else { - parser->state = YAML_PARSE_BLOCK_MAPPING_VALUE_STATE; - return yaml_parser_process_empty_scalar(parser, event, mark); - } - } - - else if (token->type == YAML_BLOCK_END_TOKEN) - { - yaml_mark_t dummy_mark; /* Used to eliminate a compiler warning. */ - parser->state = POP(parser, parser->states); - dummy_mark = POP(parser, parser->marks); - MAPPING_END_EVENT_INIT(*event, token->start_mark, token->end_mark); - SKIP_TOKEN(parser); - return 1; - } - - else - { - return yaml_parser_set_parser_error_context(parser, - "while parsing a block mapping", POP(parser, parser->marks), - "did not find expected key", token->start_mark); - } -} - -/* - * Parse the productions: - * block_mapping ::= BLOCK-MAPPING_START - * - * ((KEY block_node_or_indentless_sequence?)? - * - * (VALUE block_node_or_indentless_sequence?)?)* - * ***** * - * BLOCK-END - * - */ - -static int -yaml_parser_parse_block_mapping_value(yaml_parser_t *parser, - yaml_event_t *event) -{ - yaml_token_t *token; - - token = PEEK_TOKEN(parser); - if (!token) return 0; - - if (token->type == YAML_VALUE_TOKEN) - { - yaml_mark_t mark = token->end_mark; - SKIP_TOKEN(parser); - token = PEEK_TOKEN(parser); - if (!token) return 0; - if (token->type != YAML_KEY_TOKEN && - token->type != YAML_VALUE_TOKEN && - token->type != YAML_BLOCK_END_TOKEN) { - if (!PUSH(parser, parser->states, - YAML_PARSE_BLOCK_MAPPING_KEY_STATE)) - return 0; - return yaml_parser_parse_node(parser, event, 1, 1); - } - else { - parser->state = YAML_PARSE_BLOCK_MAPPING_KEY_STATE; - return yaml_parser_process_empty_scalar(parser, event, mark); - } - } - - else - { - parser->state = YAML_PARSE_BLOCK_MAPPING_KEY_STATE; - return yaml_parser_process_empty_scalar(parser, event, token->start_mark); - } -} - -/* - * Parse the productions: - * flow_sequence ::= FLOW-SEQUENCE-START - * ******************* - * (flow_sequence_entry FLOW-ENTRY)* - * * ********** - * flow_sequence_entry? - * * - * FLOW-SEQUENCE-END - * ***************** - * flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? - * * - */ - -static int -yaml_parser_parse_flow_sequence_entry(yaml_parser_t *parser, - yaml_event_t *event, int first) -{ - yaml_token_t *token; - yaml_mark_t dummy_mark; /* Used to eliminate a compiler warning. */ - - if (first) { - token = PEEK_TOKEN(parser); - if (!PUSH(parser, parser->marks, token->start_mark)) - return 0; - SKIP_TOKEN(parser); - } - - token = PEEK_TOKEN(parser); - if (!token) return 0; - - if (token->type != YAML_FLOW_SEQUENCE_END_TOKEN) - { - if (!first) { - if (token->type == YAML_FLOW_ENTRY_TOKEN) { - SKIP_TOKEN(parser); - token = PEEK_TOKEN(parser); - if (!token) return 0; - } - else { - return yaml_parser_set_parser_error_context(parser, - "while parsing a flow sequence", POP(parser, parser->marks), - "did not find expected ',' or ']'", token->start_mark); - } - } - - if (token->type == YAML_KEY_TOKEN) { - parser->state = YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE; - MAPPING_START_EVENT_INIT(*event, NULL, NULL, - 1, YAML_FLOW_MAPPING_STYLE, - token->start_mark, token->end_mark); - SKIP_TOKEN(parser); - return 1; - } - - else if (token->type != YAML_FLOW_SEQUENCE_END_TOKEN) { - if (!PUSH(parser, parser->states, - YAML_PARSE_FLOW_SEQUENCE_ENTRY_STATE)) - return 0; - return yaml_parser_parse_node(parser, event, 0, 0); - } - } - - parser->state = POP(parser, parser->states); - dummy_mark = POP(parser, parser->marks); - SEQUENCE_END_EVENT_INIT(*event, token->start_mark, token->end_mark); - SKIP_TOKEN(parser); - return 1; -} - -/* - * Parse the productions: - * flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? - * *** * - */ - -static int -yaml_parser_parse_flow_sequence_entry_mapping_key(yaml_parser_t *parser, - yaml_event_t *event) -{ - yaml_token_t *token; - - token = PEEK_TOKEN(parser); - if (!token) return 0; - - if (token->type != YAML_VALUE_TOKEN && token->type != YAML_FLOW_ENTRY_TOKEN - && token->type != YAML_FLOW_SEQUENCE_END_TOKEN) { - if (!PUSH(parser, parser->states, - YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE)) - return 0; - return yaml_parser_parse_node(parser, event, 0, 0); - } - else { - yaml_mark_t mark = token->end_mark; - SKIP_TOKEN(parser); - parser->state = YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE; - return yaml_parser_process_empty_scalar(parser, event, mark); - } -} - -/* - * Parse the productions: - * flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? - * ***** * - */ - -static int -yaml_parser_parse_flow_sequence_entry_mapping_value(yaml_parser_t *parser, - yaml_event_t *event) -{ - yaml_token_t *token; - - token = PEEK_TOKEN(parser); - if (!token) return 0; - - if (token->type == YAML_VALUE_TOKEN) { - SKIP_TOKEN(parser); - token = PEEK_TOKEN(parser); - if (!token) return 0; - if (token->type != YAML_FLOW_ENTRY_TOKEN - && token->type != YAML_FLOW_SEQUENCE_END_TOKEN) { - if (!PUSH(parser, parser->states, - YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE)) - return 0; - return yaml_parser_parse_node(parser, event, 0, 0); - } - } - parser->state = YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE; - return yaml_parser_process_empty_scalar(parser, event, token->start_mark); -} - -/* - * Parse the productions: - * flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? - * * - */ - -static int -yaml_parser_parse_flow_sequence_entry_mapping_end(yaml_parser_t *parser, - yaml_event_t *event) -{ - yaml_token_t *token; - - token = PEEK_TOKEN(parser); - if (!token) return 0; - - parser->state = YAML_PARSE_FLOW_SEQUENCE_ENTRY_STATE; - - MAPPING_END_EVENT_INIT(*event, token->start_mark, token->start_mark); - return 1; -} - -/* - * Parse the productions: - * flow_mapping ::= FLOW-MAPPING-START - * ****************** - * (flow_mapping_entry FLOW-ENTRY)* - * * ********** - * flow_mapping_entry? - * ****************** - * FLOW-MAPPING-END - * **************** - * flow_mapping_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? - * * *** * - */ - -static int -yaml_parser_parse_flow_mapping_key(yaml_parser_t *parser, - yaml_event_t *event, int first) -{ - yaml_token_t *token; - yaml_mark_t dummy_mark; /* Used to eliminate a compiler warning. */ - - if (first) { - token = PEEK_TOKEN(parser); - if (!PUSH(parser, parser->marks, token->start_mark)) - return 0; - SKIP_TOKEN(parser); - } - - token = PEEK_TOKEN(parser); - if (!token) return 0; - - if (token->type != YAML_FLOW_MAPPING_END_TOKEN) - { - if (!first) { - if (token->type == YAML_FLOW_ENTRY_TOKEN) { - SKIP_TOKEN(parser); - token = PEEK_TOKEN(parser); - if (!token) return 0; - } - else { - return yaml_parser_set_parser_error_context(parser, - "while parsing a flow mapping", POP(parser, parser->marks), - "did not find expected ',' or '}'", token->start_mark); - } - } - - if (token->type == YAML_KEY_TOKEN) { - SKIP_TOKEN(parser); - token = PEEK_TOKEN(parser); - if (!token) return 0; - if (token->type != YAML_VALUE_TOKEN - && token->type != YAML_FLOW_ENTRY_TOKEN - && token->type != YAML_FLOW_MAPPING_END_TOKEN) { - if (!PUSH(parser, parser->states, - YAML_PARSE_FLOW_MAPPING_VALUE_STATE)) - return 0; - return yaml_parser_parse_node(parser, event, 0, 0); - } - else { - parser->state = YAML_PARSE_FLOW_MAPPING_VALUE_STATE; - return yaml_parser_process_empty_scalar(parser, event, - token->start_mark); - } - } - else if (token->type != YAML_FLOW_MAPPING_END_TOKEN) { - if (!PUSH(parser, parser->states, - YAML_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE)) - return 0; - return yaml_parser_parse_node(parser, event, 0, 0); - } - } - - parser->state = POP(parser, parser->states); - dummy_mark = POP(parser, parser->marks); - MAPPING_END_EVENT_INIT(*event, token->start_mark, token->end_mark); - SKIP_TOKEN(parser); - return 1; -} - -/* - * Parse the productions: - * flow_mapping_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? - * * ***** * - */ - -static int -yaml_parser_parse_flow_mapping_value(yaml_parser_t *parser, - yaml_event_t *event, int empty) -{ - yaml_token_t *token; - - token = PEEK_TOKEN(parser); - if (!token) return 0; - - if (empty) { - parser->state = YAML_PARSE_FLOW_MAPPING_KEY_STATE; - return yaml_parser_process_empty_scalar(parser, event, - token->start_mark); - } - - if (token->type == YAML_VALUE_TOKEN) { - SKIP_TOKEN(parser); - token = PEEK_TOKEN(parser); - if (!token) return 0; - if (token->type != YAML_FLOW_ENTRY_TOKEN - && token->type != YAML_FLOW_MAPPING_END_TOKEN) { - if (!PUSH(parser, parser->states, - YAML_PARSE_FLOW_MAPPING_KEY_STATE)) - return 0; - return yaml_parser_parse_node(parser, event, 0, 0); - } - } - - parser->state = YAML_PARSE_FLOW_MAPPING_KEY_STATE; - return yaml_parser_process_empty_scalar(parser, event, token->start_mark); -} - -/* - * Generate an empty scalar event. - */ - -static int -yaml_parser_process_empty_scalar(yaml_parser_t *parser, yaml_event_t *event, - yaml_mark_t mark) -{ - yaml_char_t *value; - - value = yaml_malloc(1); - if (!value) { - parser->error = YAML_MEMORY_ERROR; - return 0; - } - value[0] = '\0'; - - SCALAR_EVENT_INIT(*event, NULL, NULL, value, 0, - 1, 0, YAML_PLAIN_SCALAR_STYLE, mark, mark); - - return 1; -} - -/* - * Parse directives. - */ - -static int -yaml_parser_process_directives(yaml_parser_t *parser, - yaml_version_directive_t **version_directive_ref, - yaml_tag_directive_t **tag_directives_start_ref, - yaml_tag_directive_t **tag_directives_end_ref) -{ - yaml_tag_directive_t default_tag_directives[] = { - {(yaml_char_t *)"!", (yaml_char_t *)"!"}, - {(yaml_char_t *)"!!", (yaml_char_t *)"tag:yaml.org,2002:"}, - {NULL, NULL} - }; - yaml_tag_directive_t *default_tag_directive; - yaml_version_directive_t *version_directive = NULL; - struct { - yaml_tag_directive_t *start; - yaml_tag_directive_t *end; - yaml_tag_directive_t *top; - } tag_directives = { NULL, NULL, NULL }; - yaml_token_t *token; - - if (!STACK_INIT(parser, tag_directives, INITIAL_STACK_SIZE)) - goto error; - - token = PEEK_TOKEN(parser); - if (!token) goto error; - - while (token->type == YAML_VERSION_DIRECTIVE_TOKEN || - token->type == YAML_TAG_DIRECTIVE_TOKEN) - { - if (token->type == YAML_VERSION_DIRECTIVE_TOKEN) { - if (version_directive) { - yaml_parser_set_parser_error(parser, - "found duplicate %YAML directive", token->start_mark); - goto error; - } - if (token->data.version_directive.major != 1 - || token->data.version_directive.minor != 1) { - yaml_parser_set_parser_error(parser, - "found incompatible YAML document", token->start_mark); - goto error; - } - version_directive = yaml_malloc(sizeof(yaml_version_directive_t)); - if (!version_directive) { - parser->error = YAML_MEMORY_ERROR; - goto error; - } - version_directive->major = token->data.version_directive.major; - version_directive->minor = token->data.version_directive.minor; - } - - else if (token->type == YAML_TAG_DIRECTIVE_TOKEN) { - yaml_tag_directive_t value; - value.handle = token->data.tag_directive.handle; - value.prefix = token->data.tag_directive.prefix; - - if (!yaml_parser_append_tag_directive(parser, value, 0, - token->start_mark)) - goto error; - if (!PUSH(parser, tag_directives, value)) - goto error; - } - - SKIP_TOKEN(parser); - token = PEEK_TOKEN(parser); - if (!token) goto error; - } - - for (default_tag_directive = default_tag_directives; - default_tag_directive->handle; default_tag_directive++) { - if (!yaml_parser_append_tag_directive(parser, *default_tag_directive, 1, - token->start_mark)) - goto error; - } - - if (version_directive_ref) { - *version_directive_ref = version_directive; - } - if (tag_directives_start_ref) { - if (STACK_EMPTY(parser, tag_directives)) { - *tag_directives_start_ref = *tag_directives_end_ref = NULL; - STACK_DEL(parser, tag_directives); - } - else { - *tag_directives_start_ref = tag_directives.start; - *tag_directives_end_ref = tag_directives.top; - } - } - else { - STACK_DEL(parser, tag_directives); - } - - return 1; - -error: - yaml_free(version_directive); - while (!STACK_EMPTY(parser, tag_directives)) { - yaml_tag_directive_t tag_directive = POP(parser, tag_directives); - yaml_free(tag_directive.handle); - yaml_free(tag_directive.prefix); - } - STACK_DEL(parser, tag_directives); - return 0; -} - -/* - * Append a tag directive to the directives stack. - */ - -static int -yaml_parser_append_tag_directive(yaml_parser_t *parser, - yaml_tag_directive_t value, int allow_duplicates, yaml_mark_t mark) -{ - yaml_tag_directive_t *tag_directive; - yaml_tag_directive_t copy = { NULL, NULL }; - - for (tag_directive = parser->tag_directives.start; - tag_directive != parser->tag_directives.top; tag_directive ++) { - if (strcmp((char *)value.handle, (char *)tag_directive->handle) == 0) { - if (allow_duplicates) - return 1; - return yaml_parser_set_parser_error(parser, - "found duplicate %TAG directive", mark); - } - } - - copy.handle = yaml_strdup(value.handle); - copy.prefix = yaml_strdup(value.prefix); - if (!copy.handle || !copy.prefix) { - parser->error = YAML_MEMORY_ERROR; - goto error; - } - - if (!PUSH(parser, parser->tag_directives, copy)) - goto error; - - return 1; - -error: - yaml_free(copy.handle); - yaml_free(copy.prefix); - return 0; -} - diff --git a/ruby_2_2/ext/psych/yaml/reader.c b/ruby_2_2/ext/psych/yaml/reader.c deleted file mode 100644 index f1a06deb9d..0000000000 --- a/ruby_2_2/ext/psych/yaml/reader.c +++ /dev/null @@ -1,469 +0,0 @@ - -#include "yaml_private.h" - -/* - * Declarations. - */ - -static int -yaml_parser_set_reader_error(yaml_parser_t *parser, const char *problem, - size_t offset, int value); - -static int -yaml_parser_update_raw_buffer(yaml_parser_t *parser); - -static int -yaml_parser_determine_encoding(yaml_parser_t *parser); - -YAML_DECLARE(int) -yaml_parser_update_buffer(yaml_parser_t *parser, size_t length); - -/* - * Set the reader error and return 0. - */ - -static int -yaml_parser_set_reader_error(yaml_parser_t *parser, const char *problem, - size_t offset, int value) -{ - parser->error = YAML_READER_ERROR; - parser->problem = problem; - parser->problem_offset = offset; - parser->problem_value = value; - - return 0; -} - -/* - * Byte order marks. - */ - -#define BOM_UTF8 "\xef\xbb\xbf" -#define BOM_UTF16LE "\xff\xfe" -#define BOM_UTF16BE "\xfe\xff" - -/* - * Determine the input stream encoding by checking the BOM symbol. If no BOM is - * found, the UTF-8 encoding is assumed. Return 1 on success, 0 on failure. - */ - -static int -yaml_parser_determine_encoding(yaml_parser_t *parser) -{ - /* Ensure that we had enough bytes in the raw buffer. */ - - while (!parser->eof - && parser->raw_buffer.last - parser->raw_buffer.pointer < 3) { - if (!yaml_parser_update_raw_buffer(parser)) { - return 0; - } - } - - /* Determine the encoding. */ - - if (parser->raw_buffer.last - parser->raw_buffer.pointer >= 2 - && !memcmp(parser->raw_buffer.pointer, BOM_UTF16LE, 2)) { - parser->encoding = YAML_UTF16LE_ENCODING; - parser->raw_buffer.pointer += 2; - parser->offset += 2; - } - else if (parser->raw_buffer.last - parser->raw_buffer.pointer >= 2 - && !memcmp(parser->raw_buffer.pointer, BOM_UTF16BE, 2)) { - parser->encoding = YAML_UTF16BE_ENCODING; - parser->raw_buffer.pointer += 2; - parser->offset += 2; - } - else if (parser->raw_buffer.last - parser->raw_buffer.pointer >= 3 - && !memcmp(parser->raw_buffer.pointer, BOM_UTF8, 3)) { - parser->encoding = YAML_UTF8_ENCODING; - parser->raw_buffer.pointer += 3; - parser->offset += 3; - } - else { - parser->encoding = YAML_UTF8_ENCODING; - } - - return 1; -} - -/* - * Update the raw buffer. - */ - -static int -yaml_parser_update_raw_buffer(yaml_parser_t *parser) -{ - size_t size_read = 0; - - /* Return if the raw buffer is full. */ - - if (parser->raw_buffer.start == parser->raw_buffer.pointer - && parser->raw_buffer.last == parser->raw_buffer.end) - return 1; - - /* Return on EOF. */ - - if (parser->eof) return 1; - - /* Move the remaining bytes in the raw buffer to the beginning. */ - - if (parser->raw_buffer.start < parser->raw_buffer.pointer - && parser->raw_buffer.pointer < parser->raw_buffer.last) { - memmove(parser->raw_buffer.start, parser->raw_buffer.pointer, - parser->raw_buffer.last - parser->raw_buffer.pointer); - } - parser->raw_buffer.last -= - parser->raw_buffer.pointer - parser->raw_buffer.start; - parser->raw_buffer.pointer = parser->raw_buffer.start; - - /* Call the read handler to fill the buffer. */ - - if (!parser->read_handler(parser->read_handler_data, parser->raw_buffer.last, - parser->raw_buffer.end - parser->raw_buffer.last, &size_read)) { - return yaml_parser_set_reader_error(parser, "input error", - parser->offset, -1); - } - parser->raw_buffer.last += size_read; - if (!size_read) { - parser->eof = 1; - } - - return 1; -} - -/* - * Ensure that the buffer contains at least `length` characters. - * Return 1 on success, 0 on failure. - * - * The length is supposed to be significantly less that the buffer size. - */ - -YAML_DECLARE(int) -yaml_parser_update_buffer(yaml_parser_t *parser, size_t length) -{ - int first = 1; - - assert(parser->read_handler); /* Read handler must be set. */ - - /* If the EOF flag is set and the raw buffer is empty, do nothing. */ - - if (parser->eof && parser->raw_buffer.pointer == parser->raw_buffer.last) - return 1; - - /* Return if the buffer contains enough characters. */ - - if (parser->unread >= length) - return 1; - - /* Determine the input encoding if it is not known yet. */ - - if (!parser->encoding) { - if (!yaml_parser_determine_encoding(parser)) - return 0; - } - - /* Move the unread characters to the beginning of the buffer. */ - - if (parser->buffer.start < parser->buffer.pointer - && parser->buffer.pointer < parser->buffer.last) { - size_t size = parser->buffer.last - parser->buffer.pointer; - memmove(parser->buffer.start, parser->buffer.pointer, size); - parser->buffer.pointer = parser->buffer.start; - parser->buffer.last = parser->buffer.start + size; - } - else if (parser->buffer.pointer == parser->buffer.last) { - parser->buffer.pointer = parser->buffer.start; - parser->buffer.last = parser->buffer.start; - } - - /* Fill the buffer until it has enough characters. */ - - while (parser->unread < length) - { - /* Fill the raw buffer if necessary. */ - - if (!first || parser->raw_buffer.pointer == parser->raw_buffer.last) { - if (!yaml_parser_update_raw_buffer(parser)) return 0; - } - first = 0; - - /* Decode the raw buffer. */ - - while (parser->raw_buffer.pointer != parser->raw_buffer.last) - { - unsigned int value = 0, value2 = 0; - int incomplete = 0; - unsigned char octet; - unsigned int width = 0; - int low, high; - size_t k; - size_t raw_unread = parser->raw_buffer.last - parser->raw_buffer.pointer; - - /* Decode the next character. */ - - switch (parser->encoding) - { - case YAML_UTF8_ENCODING: - - /* - * Decode a UTF-8 character. Check RFC 3629 - * (http://www.ietf.org/rfc/rfc3629.txt) for more details. - * - * The following table (taken from the RFC) is used for - * decoding. - * - * Char. number range | UTF-8 octet sequence - * (hexadecimal) | (binary) - * --------------------+------------------------------------ - * 0000 0000-0000 007F | 0xxxxxxx - * 0000 0080-0000 07FF | 110xxxxx 10xxxxxx - * 0000 0800-0000 FFFF | 1110xxxx 10xxxxxx 10xxxxxx - * 0001 0000-0010 FFFF | 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx - * - * Additionally, the characters in the range 0xD800-0xDFFF - * are prohibited as they are reserved for use with UTF-16 - * surrogate pairs. - */ - - /* Determine the length of the UTF-8 sequence. */ - - octet = parser->raw_buffer.pointer[0]; - width = (octet & 0x80) == 0x00 ? 1 : - (octet & 0xE0) == 0xC0 ? 2 : - (octet & 0xF0) == 0xE0 ? 3 : - (octet & 0xF8) == 0xF0 ? 4 : 0; - - /* Check if the leading octet is valid. */ - - if (!width) - return yaml_parser_set_reader_error(parser, - "invalid leading UTF-8 octet", - parser->offset, octet); - - /* Check if the raw buffer contains an incomplete character. */ - - if (width > raw_unread) { - if (parser->eof) { - return yaml_parser_set_reader_error(parser, - "incomplete UTF-8 octet sequence", - parser->offset, -1); - } - incomplete = 1; - break; - } - - /* Decode the leading octet. */ - - value = (octet & 0x80) == 0x00 ? octet & 0x7F : - (octet & 0xE0) == 0xC0 ? octet & 0x1F : - (octet & 0xF0) == 0xE0 ? octet & 0x0F : - (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0; - - /* Check and decode the trailing octets. */ - - for (k = 1; k < width; k ++) - { - octet = parser->raw_buffer.pointer[k]; - - /* Check if the octet is valid. */ - - if ((octet & 0xC0) != 0x80) - return yaml_parser_set_reader_error(parser, - "invalid trailing UTF-8 octet", - parser->offset+k, octet); - - /* Decode the octet. */ - - value = (value << 6) + (octet & 0x3F); - } - - /* Check the length of the sequence against the value. */ - - if (!((width == 1) || - (width == 2 && value >= 0x80) || - (width == 3 && value >= 0x800) || - (width == 4 && value >= 0x10000))) - return yaml_parser_set_reader_error(parser, - "invalid length of a UTF-8 sequence", - parser->offset, -1); - - /* Check the range of the value. */ - - if ((value >= 0xD800 && value <= 0xDFFF) || value > 0x10FFFF) - return yaml_parser_set_reader_error(parser, - "invalid Unicode character", - parser->offset, value); - - break; - - case YAML_UTF16LE_ENCODING: - case YAML_UTF16BE_ENCODING: - - low = (parser->encoding == YAML_UTF16LE_ENCODING ? 0 : 1); - high = (parser->encoding == YAML_UTF16LE_ENCODING ? 1 : 0); - - /* - * The UTF-16 encoding is not as simple as one might - * naively think. Check RFC 2781 - * (http://www.ietf.org/rfc/rfc2781.txt). - * - * Normally, two subsequent bytes describe a Unicode - * character. However a special technique (called a - * surrogate pair) is used for specifying character - * values larger than 0xFFFF. - * - * A surrogate pair consists of two pseudo-characters: - * high surrogate area (0xD800-0xDBFF) - * low surrogate area (0xDC00-0xDFFF) - * - * The following formulas are used for decoding - * and encoding characters using surrogate pairs: - * - * U = U' + 0x10000 (0x01 00 00 <= U <= 0x10 FF FF) - * U' = yyyyyyyyyyxxxxxxxxxx (0 <= U' <= 0x0F FF FF) - * W1 = 110110yyyyyyyyyy - * W2 = 110111xxxxxxxxxx - * - * where U is the character value, W1 is the high surrogate - * area, W2 is the low surrogate area. - */ - - /* Check for incomplete UTF-16 character. */ - - if (raw_unread < 2) { - if (parser->eof) { - return yaml_parser_set_reader_error(parser, - "incomplete UTF-16 character", - parser->offset, -1); - } - incomplete = 1; - break; - } - - /* Get the character. */ - - value = parser->raw_buffer.pointer[low] - + (parser->raw_buffer.pointer[high] << 8); - - /* Check for unexpected low surrogate area. */ - - if ((value & 0xFC00) == 0xDC00) - return yaml_parser_set_reader_error(parser, - "unexpected low surrogate area", - parser->offset, value); - - /* Check for a high surrogate area. */ - - if ((value & 0xFC00) == 0xD800) { - - width = 4; - - /* Check for incomplete surrogate pair. */ - - if (raw_unread < 4) { - if (parser->eof) { - return yaml_parser_set_reader_error(parser, - "incomplete UTF-16 surrogate pair", - parser->offset, -1); - } - incomplete = 1; - break; - } - - /* Get the next character. */ - - value2 = parser->raw_buffer.pointer[low+2] - + (parser->raw_buffer.pointer[high+2] << 8); - - /* Check for a low surrogate area. */ - - if ((value2 & 0xFC00) != 0xDC00) - return yaml_parser_set_reader_error(parser, - "expected low surrogate area", - parser->offset+2, value2); - - /* Generate the value of the surrogate pair. */ - - value = 0x10000 + ((value & 0x3FF) << 10) + (value2 & 0x3FF); - } - - else { - width = 2; - } - - break; - - default: - assert(1); /* Impossible. */ - } - - /* Check if the raw buffer contains enough bytes to form a character. */ - - if (incomplete) break; - - /* - * Check if the character is in the allowed range: - * #x9 | #xA | #xD | [#x20-#x7E] (8 bit) - * | #x85 | [#xA0-#xD7FF] | [#xE000-#xFFFD] (16 bit) - * | [#x10000-#x10FFFF] (32 bit) - */ - - if (! (value == 0x09 || value == 0x0A || value == 0x0D - || (value >= 0x20 && value <= 0x7E) - || (value == 0x85) || (value >= 0xA0 && value <= 0xD7FF) - || (value >= 0xE000 && value <= 0xFFFD) - || (value >= 0x10000 && value <= 0x10FFFF))) - return yaml_parser_set_reader_error(parser, - "control characters are not allowed", - parser->offset, value); - - /* Move the raw pointers. */ - - parser->raw_buffer.pointer += width; - parser->offset += width; - - /* Finally put the character into the buffer. */ - - /* 0000 0000-0000 007F -> 0xxxxxxx */ - if (value <= 0x7F) { - *(parser->buffer.last++) = value; - } - /* 0000 0080-0000 07FF -> 110xxxxx 10xxxxxx */ - else if (value <= 0x7FF) { - *(parser->buffer.last++) = 0xC0 + (value >> 6); - *(parser->buffer.last++) = 0x80 + (value & 0x3F); - } - /* 0000 0800-0000 FFFF -> 1110xxxx 10xxxxxx 10xxxxxx */ - else if (value <= 0xFFFF) { - *(parser->buffer.last++) = 0xE0 + (value >> 12); - *(parser->buffer.last++) = 0x80 + ((value >> 6) & 0x3F); - *(parser->buffer.last++) = 0x80 + (value & 0x3F); - } - /* 0001 0000-0010 FFFF -> 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx */ - else { - *(parser->buffer.last++) = 0xF0 + (value >> 18); - *(parser->buffer.last++) = 0x80 + ((value >> 12) & 0x3F); - *(parser->buffer.last++) = 0x80 + ((value >> 6) & 0x3F); - *(parser->buffer.last++) = 0x80 + (value & 0x3F); - } - - parser->unread ++; - } - - /* On EOF, put NUL into the buffer and return. */ - - if (parser->eof) { - *(parser->buffer.last++) = '\0'; - parser->unread ++; - return 1; - } - - } - - if (parser->offset >= PTRDIFF_MAX) - return yaml_parser_set_reader_error(parser, "input is too long", - PTRDIFF_MAX, -1); - - return 1; -} - diff --git a/ruby_2_2/ext/psych/yaml/scanner.c b/ruby_2_2/ext/psych/yaml/scanner.c deleted file mode 100644 index 3ef90dc66b..0000000000 --- a/ruby_2_2/ext/psych/yaml/scanner.c +++ /dev/null @@ -1,3576 +0,0 @@ - -/* - * Introduction - * ************ - * - * The following notes assume that you are familiar with the YAML specification - * (http://yaml.org/spec/cvs/current.html). We mostly follow it, although in - * some cases we are less restrictive that it requires. - * - * The process of transforming a YAML stream into a sequence of events is - * divided on two steps: Scanning and Parsing. - * - * The Scanner transforms the input stream into a sequence of tokens, while the - * parser transform the sequence of tokens produced by the Scanner into a - * sequence of parsing events. - * - * The Scanner is rather clever and complicated. The Parser, on the contrary, - * is a straightforward implementation of a recursive-descendant parser (or, - * LL(1) parser, as it is usually called). - * - * Actually there are two issues of Scanning that might be called "clever", the - * rest is quite straightforward. The issues are "block collection start" and - * "simple keys". Both issues are explained below in details. - * - * Here the Scanning step is explained and implemented. We start with the list - * of all the tokens produced by the Scanner together with short descriptions. - * - * Now, tokens: - * - * STREAM-START(encoding) # The stream start. - * STREAM-END # The stream end. - * VERSION-DIRECTIVE(major,minor) # The '%YAML' directive. - * TAG-DIRECTIVE(handle,prefix) # The '%TAG' directive. - * DOCUMENT-START # '---' - * DOCUMENT-END # '...' - * BLOCK-SEQUENCE-START # Indentation increase denoting a block - * BLOCK-MAPPING-START # sequence or a block mapping. - * BLOCK-END # Indentation decrease. - * FLOW-SEQUENCE-START # '[' - * FLOW-SEQUENCE-END # ']' - * BLOCK-SEQUENCE-START # '{' - * BLOCK-SEQUENCE-END # '}' - * BLOCK-ENTRY # '-' - * FLOW-ENTRY # ',' - * KEY # '?' or nothing (simple keys). - * VALUE # ':' - * ALIAS(anchor) # '*anchor' - * ANCHOR(anchor) # '&anchor' - * TAG(handle,suffix) # '!handle!suffix' - * SCALAR(value,style) # A scalar. - * - * The following two tokens are "virtual" tokens denoting the beginning and the - * end of the stream: - * - * STREAM-START(encoding) - * STREAM-END - * - * We pass the information about the input stream encoding with the - * STREAM-START token. - * - * The next two tokens are responsible for tags: - * - * VERSION-DIRECTIVE(major,minor) - * TAG-DIRECTIVE(handle,prefix) - * - * Example: - * - * %YAML 1.1 - * %TAG ! !foo - * %TAG !yaml! tag:yaml.org,2002: - * --- - * - * The corresponding sequence of tokens: - * - * STREAM-START(utf-8) - * VERSION-DIRECTIVE(1,1) - * TAG-DIRECTIVE("!","!foo") - * TAG-DIRECTIVE("!yaml","tag:yaml.org,2002:") - * DOCUMENT-START - * STREAM-END - * - * Note that the VERSION-DIRECTIVE and TAG-DIRECTIVE tokens occupy a whole - * line. - * - * The document start and end indicators are represented by: - * - * DOCUMENT-START - * DOCUMENT-END - * - * Note that if a YAML stream contains an implicit document (without '---' - * and '...' indicators), no DOCUMENT-START and DOCUMENT-END tokens will be - * produced. - * - * In the following examples, we present whole documents together with the - * produced tokens. - * - * 1. An implicit document: - * - * 'a scalar' - * - * Tokens: - * - * STREAM-START(utf-8) - * SCALAR("a scalar",single-quoted) - * STREAM-END - * - * 2. An explicit document: - * - * --- - * 'a scalar' - * ... - * - * Tokens: - * - * STREAM-START(utf-8) - * DOCUMENT-START - * SCALAR("a scalar",single-quoted) - * DOCUMENT-END - * STREAM-END - * - * 3. Several documents in a stream: - * - * 'a scalar' - * --- - * 'another scalar' - * --- - * 'yet another scalar' - * - * Tokens: - * - * STREAM-START(utf-8) - * SCALAR("a scalar",single-quoted) - * DOCUMENT-START - * SCALAR("another scalar",single-quoted) - * DOCUMENT-START - * SCALAR("yet another scalar",single-quoted) - * STREAM-END - * - * We have already introduced the SCALAR token above. The following tokens are - * used to describe aliases, anchors, tag, and scalars: - * - * ALIAS(anchor) - * ANCHOR(anchor) - * TAG(handle,suffix) - * SCALAR(value,style) - * - * The following series of examples illustrate the usage of these tokens: - * - * 1. A recursive sequence: - * - * &A [ *A ] - * - * Tokens: - * - * STREAM-START(utf-8) - * ANCHOR("A") - * FLOW-SEQUENCE-START - * ALIAS("A") - * FLOW-SEQUENCE-END - * STREAM-END - * - * 2. A tagged scalar: - * - * !!float "3.14" # A good approximation. - * - * Tokens: - * - * STREAM-START(utf-8) - * TAG("!!","float") - * SCALAR("3.14",double-quoted) - * STREAM-END - * - * 3. Various scalar styles: - * - * --- # Implicit empty plain scalars do not produce tokens. - * --- a plain scalar - * --- 'a single-quoted scalar' - * --- "a double-quoted scalar" - * --- |- - * a literal scalar - * --- >- - * a folded - * scalar - * - * Tokens: - * - * STREAM-START(utf-8) - * DOCUMENT-START - * DOCUMENT-START - * SCALAR("a plain scalar",plain) - * DOCUMENT-START - * SCALAR("a single-quoted scalar",single-quoted) - * DOCUMENT-START - * SCALAR("a double-quoted scalar",double-quoted) - * DOCUMENT-START - * SCALAR("a literal scalar",literal) - * DOCUMENT-START - * SCALAR("a folded scalar",folded) - * STREAM-END - * - * Now it's time to review collection-related tokens. We will start with - * flow collections: - * - * FLOW-SEQUENCE-START - * FLOW-SEQUENCE-END - * FLOW-MAPPING-START - * FLOW-MAPPING-END - * FLOW-ENTRY - * KEY - * VALUE - * - * The tokens FLOW-SEQUENCE-START, FLOW-SEQUENCE-END, FLOW-MAPPING-START, and - * FLOW-MAPPING-END represent the indicators '[', ']', '{', and '}' - * correspondingly. FLOW-ENTRY represent the ',' indicator. Finally the - * indicators '?' and ':', which are used for denoting mapping keys and values, - * are represented by the KEY and VALUE tokens. - * - * The following examples show flow collections: - * - * 1. A flow sequence: - * - * [item 1, item 2, item 3] - * - * Tokens: - * - * STREAM-START(utf-8) - * FLOW-SEQUENCE-START - * SCALAR("item 1",plain) - * FLOW-ENTRY - * SCALAR("item 2",plain) - * FLOW-ENTRY - * SCALAR("item 3",plain) - * FLOW-SEQUENCE-END - * STREAM-END - * - * 2. A flow mapping: - * - * { - * a simple key: a value, # Note that the KEY token is produced. - * ? a complex key: another value, - * } - * - * Tokens: - * - * STREAM-START(utf-8) - * FLOW-MAPPING-START - * KEY - * SCALAR("a simple key",plain) - * VALUE - * SCALAR("a value",plain) - * FLOW-ENTRY - * KEY - * SCALAR("a complex key",plain) - * VALUE - * SCALAR("another value",plain) - * FLOW-ENTRY - * FLOW-MAPPING-END - * STREAM-END - * - * A simple key is a key which is not denoted by the '?' indicator. Note that - * the Scanner still produce the KEY token whenever it encounters a simple key. - * - * For scanning block collections, the following tokens are used (note that we - * repeat KEY and VALUE here): - * - * BLOCK-SEQUENCE-START - * BLOCK-MAPPING-START - * BLOCK-END - * BLOCK-ENTRY - * KEY - * VALUE - * - * The tokens BLOCK-SEQUENCE-START and BLOCK-MAPPING-START denote indentation - * increase that precedes a block collection (cf. the INDENT token in Python). - * The token BLOCK-END denote indentation decrease that ends a block collection - * (cf. the DEDENT token in Python). However YAML has some syntax pecularities - * that makes detections of these tokens more complex. - * - * The tokens BLOCK-ENTRY, KEY, and VALUE are used to represent the indicators - * '-', '?', and ':' correspondingly. - * - * The following examples show how the tokens BLOCK-SEQUENCE-START, - * BLOCK-MAPPING-START, and BLOCK-END are emitted by the Scanner: - * - * 1. Block sequences: - * - * - item 1 - * - item 2 - * - - * - item 3.1 - * - item 3.2 - * - - * key 1: value 1 - * key 2: value 2 - * - * Tokens: - * - * STREAM-START(utf-8) - * BLOCK-SEQUENCE-START - * BLOCK-ENTRY - * SCALAR("item 1",plain) - * BLOCK-ENTRY - * SCALAR("item 2",plain) - * BLOCK-ENTRY - * BLOCK-SEQUENCE-START - * BLOCK-ENTRY - * SCALAR("item 3.1",plain) - * BLOCK-ENTRY - * SCALAR("item 3.2",plain) - * BLOCK-END - * BLOCK-ENTRY - * BLOCK-MAPPING-START - * KEY - * SCALAR("key 1",plain) - * VALUE - * SCALAR("value 1",plain) - * KEY - * SCALAR("key 2",plain) - * VALUE - * SCALAR("value 2",plain) - * BLOCK-END - * BLOCK-END - * STREAM-END - * - * 2. Block mappings: - * - * a simple key: a value # The KEY token is produced here. - * ? a complex key - * : another value - * a mapping: - * key 1: value 1 - * key 2: value 2 - * a sequence: - * - item 1 - * - item 2 - * - * Tokens: - * - * STREAM-START(utf-8) - * BLOCK-MAPPING-START - * KEY - * SCALAR("a simple key",plain) - * VALUE - * SCALAR("a value",plain) - * KEY - * SCALAR("a complex key",plain) - * VALUE - * SCALAR("another value",plain) - * KEY - * SCALAR("a mapping",plain) - * BLOCK-MAPPING-START - * KEY - * SCALAR("key 1",plain) - * VALUE - * SCALAR("value 1",plain) - * KEY - * SCALAR("key 2",plain) - * VALUE - * SCALAR("value 2",plain) - * BLOCK-END - * KEY - * SCALAR("a sequence",plain) - * VALUE - * BLOCK-SEQUENCE-START - * BLOCK-ENTRY - * SCALAR("item 1",plain) - * BLOCK-ENTRY - * SCALAR("item 2",plain) - * BLOCK-END - * BLOCK-END - * STREAM-END - * - * YAML does not always require to start a new block collection from a new - * line. If the current line contains only '-', '?', and ':' indicators, a new - * block collection may start at the current line. The following examples - * illustrate this case: - * - * 1. Collections in a sequence: - * - * - - item 1 - * - item 2 - * - key 1: value 1 - * key 2: value 2 - * - ? complex key - * : complex value - * - * Tokens: - * - * STREAM-START(utf-8) - * BLOCK-SEQUENCE-START - * BLOCK-ENTRY - * BLOCK-SEQUENCE-START - * BLOCK-ENTRY - * SCALAR("item 1",plain) - * BLOCK-ENTRY - * SCALAR("item 2",plain) - * BLOCK-END - * BLOCK-ENTRY - * BLOCK-MAPPING-START - * KEY - * SCALAR("key 1",plain) - * VALUE - * SCALAR("value 1",plain) - * KEY - * SCALAR("key 2",plain) - * VALUE - * SCALAR("value 2",plain) - * BLOCK-END - * BLOCK-ENTRY - * BLOCK-MAPPING-START - * KEY - * SCALAR("complex key") - * VALUE - * SCALAR("complex value") - * BLOCK-END - * BLOCK-END - * STREAM-END - * - * 2. Collections in a mapping: - * - * ? a sequence - * : - item 1 - * - item 2 - * ? a mapping - * : key 1: value 1 - * key 2: value 2 - * - * Tokens: - * - * STREAM-START(utf-8) - * BLOCK-MAPPING-START - * KEY - * SCALAR("a sequence",plain) - * VALUE - * BLOCK-SEQUENCE-START - * BLOCK-ENTRY - * SCALAR("item 1",plain) - * BLOCK-ENTRY - * SCALAR("item 2",plain) - * BLOCK-END - * KEY - * SCALAR("a mapping",plain) - * VALUE - * BLOCK-MAPPING-START - * KEY - * SCALAR("key 1",plain) - * VALUE - * SCALAR("value 1",plain) - * KEY - * SCALAR("key 2",plain) - * VALUE - * SCALAR("value 2",plain) - * BLOCK-END - * BLOCK-END - * STREAM-END - * - * YAML also permits non-indented sequences if they are included into a block - * mapping. In this case, the token BLOCK-SEQUENCE-START is not produced: - * - * key: - * - item 1 # BLOCK-SEQUENCE-START is NOT produced here. - * - item 2 - * - * Tokens: - * - * STREAM-START(utf-8) - * BLOCK-MAPPING-START - * KEY - * SCALAR("key",plain) - * VALUE - * BLOCK-ENTRY - * SCALAR("item 1",plain) - * BLOCK-ENTRY - * SCALAR("item 2",plain) - * BLOCK-END - */ - -#include "yaml_private.h" - -/* - * Ensure that the buffer contains the required number of characters. - * Return 1 on success, 0 on failure (reader error or memory error). - */ - -#define CACHE(parser,length) \ - (parser->unread >= (length) \ - ? 1 \ - : yaml_parser_update_buffer(parser, (length))) - -/* - * Advance the buffer pointer. - */ - -#define SKIP(parser) \ - (parser->mark.index ++, \ - parser->mark.column ++, \ - parser->unread --, \ - parser->buffer.pointer += WIDTH(parser->buffer)) - -#define SKIP_LINE(parser) \ - (IS_CRLF(parser->buffer) ? \ - (parser->mark.index += 2, \ - parser->mark.column = 0, \ - parser->mark.line ++, \ - parser->unread -= 2, \ - parser->buffer.pointer += 2) : \ - IS_BREAK(parser->buffer) ? \ - (parser->mark.index ++, \ - parser->mark.column = 0, \ - parser->mark.line ++, \ - parser->unread --, \ - parser->buffer.pointer += WIDTH(parser->buffer)) : 0) - -/* - * Copy a character to a string buffer and advance pointers. - */ - -#define READ(parser,string) \ - (STRING_EXTEND(parser,string) ? \ - (COPY(string,parser->buffer), \ - parser->mark.index ++, \ - parser->mark.column ++, \ - parser->unread --, \ - 1) : 0) - -/* - * Copy a line break character to a string buffer and advance pointers. - */ - -#define READ_LINE(parser,string) \ - (STRING_EXTEND(parser,string) ? \ - (((CHECK_AT(parser->buffer,'\r',0) \ - && CHECK_AT(parser->buffer,'\n',1)) ? /* CR LF -> LF */ \ - (*((string).pointer++) = (yaml_char_t) '\n', \ - parser->buffer.pointer += 2, \ - parser->mark.index += 2, \ - parser->mark.column = 0, \ - parser->mark.line ++, \ - parser->unread -= 2) : \ - (CHECK_AT(parser->buffer,'\r',0) \ - || CHECK_AT(parser->buffer,'\n',0)) ? /* CR|LF -> LF */ \ - (*((string).pointer++) = (yaml_char_t) '\n', \ - parser->buffer.pointer ++, \ - parser->mark.index ++, \ - parser->mark.column = 0, \ - parser->mark.line ++, \ - parser->unread --) : \ - (CHECK_AT(parser->buffer,'\xC2',0) \ - && CHECK_AT(parser->buffer,'\x85',1)) ? /* NEL -> LF */ \ - (*((string).pointer++) = (yaml_char_t) '\n', \ - parser->buffer.pointer += 2, \ - parser->mark.index ++, \ - parser->mark.column = 0, \ - parser->mark.line ++, \ - parser->unread --) : \ - (CHECK_AT(parser->buffer,'\xE2',0) && \ - CHECK_AT(parser->buffer,'\x80',1) && \ - (CHECK_AT(parser->buffer,'\xA8',2) || \ - CHECK_AT(parser->buffer,'\xA9',2))) ? /* LS|PS -> LS|PS */ \ - (*((string).pointer++) = *(parser->buffer.pointer++), \ - *((string).pointer++) = *(parser->buffer.pointer++), \ - *((string).pointer++) = *(parser->buffer.pointer++), \ - parser->mark.index ++, \ - parser->mark.column = 0, \ - parser->mark.line ++, \ - parser->unread --) : 0), \ - 1) : 0) - -/* - * Public API declarations. - */ - -YAML_DECLARE(int) -yaml_parser_scan(yaml_parser_t *parser, yaml_token_t *token); - -/* - * Error handling. - */ - -static int -yaml_parser_set_scanner_error(yaml_parser_t *parser, const char *context, - yaml_mark_t context_mark, const char *problem); - -/* - * High-level token API. - */ - -YAML_DECLARE(int) -yaml_parser_fetch_more_tokens(yaml_parser_t *parser); - -static int -yaml_parser_fetch_next_token(yaml_parser_t *parser); - -/* - * Potential simple keys. - */ - -static int -yaml_parser_stale_simple_keys(yaml_parser_t *parser); - -static int -yaml_parser_save_simple_key(yaml_parser_t *parser); - -static int -yaml_parser_remove_simple_key(yaml_parser_t *parser); - -static int -yaml_parser_increase_flow_level(yaml_parser_t *parser); - -static int -yaml_parser_decrease_flow_level(yaml_parser_t *parser); - -/* - * Indentation treatment. - */ - -static int -yaml_parser_roll_indent(yaml_parser_t *parser, ptrdiff_t column, - ptrdiff_t number, yaml_token_type_t type, yaml_mark_t mark); - -static int -yaml_parser_unroll_indent(yaml_parser_t *parser, ptrdiff_t column); - -/* - * Token fetchers. - */ - -static int -yaml_parser_fetch_stream_start(yaml_parser_t *parser); - -static int -yaml_parser_fetch_stream_end(yaml_parser_t *parser); - -static int -yaml_parser_fetch_directive(yaml_parser_t *parser); - -static int -yaml_parser_fetch_document_indicator(yaml_parser_t *parser, - yaml_token_type_t type); - -static int -yaml_parser_fetch_flow_collection_start(yaml_parser_t *parser, - yaml_token_type_t type); - -static int -yaml_parser_fetch_flow_collection_end(yaml_parser_t *parser, - yaml_token_type_t type); - -static int -yaml_parser_fetch_flow_entry(yaml_parser_t *parser); - -static int -yaml_parser_fetch_block_entry(yaml_parser_t *parser); - -static int -yaml_parser_fetch_key(yaml_parser_t *parser); - -static int -yaml_parser_fetch_value(yaml_parser_t *parser); - -static int -yaml_parser_fetch_anchor(yaml_parser_t *parser, yaml_token_type_t type); - -static int -yaml_parser_fetch_tag(yaml_parser_t *parser); - -static int -yaml_parser_fetch_block_scalar(yaml_parser_t *parser, int literal); - -static int -yaml_parser_fetch_flow_scalar(yaml_parser_t *parser, int single); - -static int -yaml_parser_fetch_plain_scalar(yaml_parser_t *parser); - -/* - * Token scanners. - */ - -static int -yaml_parser_scan_to_next_token(yaml_parser_t *parser); - -static int -yaml_parser_scan_directive(yaml_parser_t *parser, yaml_token_t *token); - -static int -yaml_parser_scan_directive_name(yaml_parser_t *parser, - yaml_mark_t start_mark, yaml_char_t **name); - -static int -yaml_parser_scan_version_directive_value(yaml_parser_t *parser, - yaml_mark_t start_mark, int *major, int *minor); - -static int -yaml_parser_scan_version_directive_number(yaml_parser_t *parser, - yaml_mark_t start_mark, int *number); - -static int -yaml_parser_scan_tag_directive_value(yaml_parser_t *parser, - yaml_mark_t mark, yaml_char_t **handle, yaml_char_t **prefix); - -static int -yaml_parser_scan_anchor(yaml_parser_t *parser, yaml_token_t *token, - yaml_token_type_t type); - -static int -yaml_parser_scan_tag(yaml_parser_t *parser, yaml_token_t *token); - -static int -yaml_parser_scan_tag_handle(yaml_parser_t *parser, int directive, - yaml_mark_t start_mark, yaml_char_t **handle); - -static int -yaml_parser_scan_tag_uri(yaml_parser_t *parser, int directive, - yaml_char_t *head, yaml_mark_t start_mark, yaml_char_t **uri); - -static int -yaml_parser_scan_uri_escapes(yaml_parser_t *parser, int directive, - yaml_mark_t start_mark, yaml_string_t *string); - -static int -yaml_parser_scan_block_scalar(yaml_parser_t *parser, yaml_token_t *token, - int literal); - -static int -yaml_parser_scan_block_scalar_breaks(yaml_parser_t *parser, - int *indent, yaml_string_t *breaks, - yaml_mark_t start_mark, yaml_mark_t *end_mark); - -static int -yaml_parser_scan_flow_scalar(yaml_parser_t *parser, yaml_token_t *token, - int single); - -static int -yaml_parser_scan_plain_scalar(yaml_parser_t *parser, yaml_token_t *token); - -/* - * Get the next token. - */ - -YAML_DECLARE(int) -yaml_parser_scan(yaml_parser_t *parser, yaml_token_t *token) -{ - assert(parser); /* Non-NULL parser object is expected. */ - assert(token); /* Non-NULL token object is expected. */ - - /* Erase the token object. */ - - memset(token, 0, sizeof(yaml_token_t)); - - /* No tokens after STREAM-END or error. */ - - if (parser->stream_end_produced || parser->error) { - return 1; - } - - /* Ensure that the tokens queue contains enough tokens. */ - - if (!parser->token_available) { - if (!yaml_parser_fetch_more_tokens(parser)) - return 0; - } - - /* Fetch the next token from the queue. */ - - *token = DEQUEUE(parser, parser->tokens); - parser->token_available = 0; - parser->tokens_parsed ++; - - if (token->type == YAML_STREAM_END_TOKEN) { - parser->stream_end_produced = 1; - } - - return 1; -} - -/* - * Set the scanner error and return 0. - */ - -static int -yaml_parser_set_scanner_error(yaml_parser_t *parser, const char *context, - yaml_mark_t context_mark, const char *problem) -{ - parser->error = YAML_SCANNER_ERROR; - parser->context = context; - parser->context_mark = context_mark; - parser->problem = problem; - parser->problem_mark = parser->mark; - - return 0; -} - -/* - * Ensure that the tokens queue contains at least one token which can be - * returned to the Parser. - */ - -YAML_DECLARE(int) -yaml_parser_fetch_more_tokens(yaml_parser_t *parser) -{ - int need_more_tokens; - - /* While we need more tokens to fetch, do it. */ - - while (1) - { - /* - * Check if we really need to fetch more tokens. - */ - - need_more_tokens = 0; - - if (parser->tokens.head == parser->tokens.tail) - { - /* Queue is empty. */ - - need_more_tokens = 1; - } - else - { - yaml_simple_key_t *simple_key; - - /* Check if any potential simple key may occupy the head position. */ - - if (!yaml_parser_stale_simple_keys(parser)) - return 0; - - for (simple_key = parser->simple_keys.start; - simple_key != parser->simple_keys.top; simple_key++) { - if (simple_key->possible - && simple_key->token_number == parser->tokens_parsed) { - need_more_tokens = 1; - break; - } - } - } - - /* We are finished. */ - - if (!need_more_tokens) - break; - - /* Fetch the next token. */ - - if (!yaml_parser_fetch_next_token(parser)) - return 0; - } - - parser->token_available = 1; - - return 1; -} - -/* - * The dispatcher for token fetchers. - */ - -static int -yaml_parser_fetch_next_token(yaml_parser_t *parser) -{ - /* Ensure that the buffer is initialized. */ - - if (!CACHE(parser, 1)) - return 0; - - /* Check if we just started scanning. Fetch STREAM-START then. */ - - if (!parser->stream_start_produced) - return yaml_parser_fetch_stream_start(parser); - - /* Eat whitespaces and comments until we reach the next token. */ - - if (!yaml_parser_scan_to_next_token(parser)) - return 0; - - /* Remove obsolete potential simple keys. */ - - if (!yaml_parser_stale_simple_keys(parser)) - return 0; - - /* Check the indentation level against the current column. */ - - if (!yaml_parser_unroll_indent(parser, parser->mark.column)) - return 0; - - /* - * Ensure that the buffer contains at least 4 characters. 4 is the length - * of the longest indicators ('--- ' and '... '). - */ - - if (!CACHE(parser, 4)) - return 0; - - /* Is it the end of the stream? */ - - if (IS_Z(parser->buffer)) - return yaml_parser_fetch_stream_end(parser); - - /* Is it a directive? */ - - if (parser->mark.column == 0 && CHECK(parser->buffer, '%')) - return yaml_parser_fetch_directive(parser); - - /* Is it the document start indicator? */ - - if (parser->mark.column == 0 - && CHECK_AT(parser->buffer, '-', 0) - && CHECK_AT(parser->buffer, '-', 1) - && CHECK_AT(parser->buffer, '-', 2) - && IS_BLANKZ_AT(parser->buffer, 3)) - return yaml_parser_fetch_document_indicator(parser, - YAML_DOCUMENT_START_TOKEN); - - /* Is it the document end indicator? */ - - if (parser->mark.column == 0 - && CHECK_AT(parser->buffer, '.', 0) - && CHECK_AT(parser->buffer, '.', 1) - && CHECK_AT(parser->buffer, '.', 2) - && IS_BLANKZ_AT(parser->buffer, 3)) - return yaml_parser_fetch_document_indicator(parser, - YAML_DOCUMENT_END_TOKEN); - - /* Is it the flow sequence start indicator? */ - - if (CHECK(parser->buffer, '[')) - return yaml_parser_fetch_flow_collection_start(parser, - YAML_FLOW_SEQUENCE_START_TOKEN); - - /* Is it the flow mapping start indicator? */ - - if (CHECK(parser->buffer, '{')) - return yaml_parser_fetch_flow_collection_start(parser, - YAML_FLOW_MAPPING_START_TOKEN); - - /* Is it the flow sequence end indicator? */ - - if (CHECK(parser->buffer, ']')) - return yaml_parser_fetch_flow_collection_end(parser, - YAML_FLOW_SEQUENCE_END_TOKEN); - - /* Is it the flow mapping end indicator? */ - - if (CHECK(parser->buffer, '}')) - return yaml_parser_fetch_flow_collection_end(parser, - YAML_FLOW_MAPPING_END_TOKEN); - - /* Is it the flow entry indicator? */ - - if (CHECK(parser->buffer, ',')) - return yaml_parser_fetch_flow_entry(parser); - - /* Is it the block entry indicator? */ - - if (CHECK(parser->buffer, '-') && IS_BLANKZ_AT(parser->buffer, 1)) - return yaml_parser_fetch_block_entry(parser); - - /* Is it the key indicator? */ - - if (CHECK(parser->buffer, '?') - && (parser->flow_level || IS_BLANKZ_AT(parser->buffer, 1))) - return yaml_parser_fetch_key(parser); - - /* Is it the value indicator? */ - - if (CHECK(parser->buffer, ':') - && (parser->flow_level || IS_BLANKZ_AT(parser->buffer, 1))) - return yaml_parser_fetch_value(parser); - - /* Is it an alias? */ - - if (CHECK(parser->buffer, '*')) - return yaml_parser_fetch_anchor(parser, YAML_ALIAS_TOKEN); - - /* Is it an anchor? */ - - if (CHECK(parser->buffer, '&')) - return yaml_parser_fetch_anchor(parser, YAML_ANCHOR_TOKEN); - - /* Is it a tag? */ - - if (CHECK(parser->buffer, '!')) - return yaml_parser_fetch_tag(parser); - - /* Is it a literal scalar? */ - - if (CHECK(parser->buffer, '|') && !parser->flow_level) - return yaml_parser_fetch_block_scalar(parser, 1); - - /* Is it a folded scalar? */ - - if (CHECK(parser->buffer, '>') && !parser->flow_level) - return yaml_parser_fetch_block_scalar(parser, 0); - - /* Is it a single-quoted scalar? */ - - if (CHECK(parser->buffer, '\'')) - return yaml_parser_fetch_flow_scalar(parser, 1); - - /* Is it a double-quoted scalar? */ - - if (CHECK(parser->buffer, '"')) - return yaml_parser_fetch_flow_scalar(parser, 0); - - /* - * Is it a plain scalar? - * - * A plain scalar may start with any non-blank characters except - * - * '-', '?', ':', ',', '[', ']', '{', '}', - * '#', '&', '*', '!', '|', '>', '\'', '\"', - * '%', '@', '`'. - * - * In the block context (and, for the '-' indicator, in the flow context - * too), it may also start with the characters - * - * '-', '?', ':' - * - * if it is followed by a non-space character. - * - * The last rule is more restrictive than the specification requires. - */ - - if (!(IS_BLANKZ(parser->buffer) || CHECK(parser->buffer, '-') - || CHECK(parser->buffer, '?') || CHECK(parser->buffer, ':') - || CHECK(parser->buffer, ',') || CHECK(parser->buffer, '[') - || CHECK(parser->buffer, ']') || CHECK(parser->buffer, '{') - || CHECK(parser->buffer, '}') || CHECK(parser->buffer, '#') - || CHECK(parser->buffer, '&') || CHECK(parser->buffer, '*') - || CHECK(parser->buffer, '!') || CHECK(parser->buffer, '|') - || CHECK(parser->buffer, '>') || CHECK(parser->buffer, '\'') - || CHECK(parser->buffer, '"') || CHECK(parser->buffer, '%') - || CHECK(parser->buffer, '@') || CHECK(parser->buffer, '`')) || - (CHECK(parser->buffer, '-') && !IS_BLANK_AT(parser->buffer, 1)) || - (!parser->flow_level && - (CHECK(parser->buffer, '?') || CHECK(parser->buffer, ':')) - && !IS_BLANKZ_AT(parser->buffer, 1))) - return yaml_parser_fetch_plain_scalar(parser); - - /* - * If we don't determine the token type so far, it is an error. - */ - - return yaml_parser_set_scanner_error(parser, - "while scanning for the next token", parser->mark, - "found character that cannot start any token"); -} - -/* - * Check the list of potential simple keys and remove the positions that - * cannot contain simple keys anymore. - */ - -static int -yaml_parser_stale_simple_keys(yaml_parser_t *parser) -{ - yaml_simple_key_t *simple_key; - - /* Check for a potential simple key for each flow level. */ - - for (simple_key = parser->simple_keys.start; - simple_key != parser->simple_keys.top; simple_key ++) - { - /* - * The specification requires that a simple key - * - * - is limited to a single line, - * - is shorter than 1024 characters. - */ - - if (simple_key->possible - && (simple_key->mark.line < parser->mark.line - || simple_key->mark.index+1024 < parser->mark.index)) { - - /* Check if the potential simple key to be removed is required. */ - - if (simple_key->required) { - return yaml_parser_set_scanner_error(parser, - "while scanning a simple key", simple_key->mark, - "could not find expected ':'"); - } - - simple_key->possible = 0; - } - } - - return 1; -} - -/* - * Check if a simple key may start at the current position and add it if - * needed. - */ - -static int -yaml_parser_save_simple_key(yaml_parser_t *parser) -{ - /* - * A simple key is required at the current position if the scanner is in - * the block context and the current column coincides with the indentation - * level. - */ - - int required = (!parser->flow_level - && parser->indent == (ptrdiff_t)parser->mark.column); - - /* - * If the current position may start a simple key, save it. - */ - - if (parser->simple_key_allowed) - { - yaml_simple_key_t simple_key; - simple_key.possible = 1; - simple_key.required = required; - simple_key.token_number = - parser->tokens_parsed + (parser->tokens.tail - parser->tokens.head); - simple_key.mark = parser->mark; - - if (!yaml_parser_remove_simple_key(parser)) return 0; - - *(parser->simple_keys.top-1) = simple_key; - } - - return 1; -} - -/* - * Remove a potential simple key at the current flow level. - */ - -static int -yaml_parser_remove_simple_key(yaml_parser_t *parser) -{ - yaml_simple_key_t *simple_key = parser->simple_keys.top-1; - - if (simple_key->possible) - { - /* If the key is required, it is an error. */ - - if (simple_key->required) { - return yaml_parser_set_scanner_error(parser, - "while scanning a simple key", simple_key->mark, - "could not find expected ':'"); - } - } - - /* Remove the key from the stack. */ - - simple_key->possible = 0; - - return 1; -} - -/* - * Increase the flow level and resize the simple key list if needed. - */ - -static int -yaml_parser_increase_flow_level(yaml_parser_t *parser) -{ - yaml_simple_key_t empty_simple_key = { 0, 0, 0, { 0, 0, 0 } }; - - /* Reset the simple key on the next level. */ - - if (!PUSH(parser, parser->simple_keys, empty_simple_key)) - return 0; - - /* Increase the flow level. */ - - if (parser->flow_level == INT_MAX) { - parser->error = YAML_MEMORY_ERROR; - return 0; - } - - parser->flow_level++; - - return 1; -} - -/* - * Decrease the flow level. - */ - -static int -yaml_parser_decrease_flow_level(yaml_parser_t *parser) -{ - yaml_simple_key_t dummy_key; /* Used to eliminate a compiler warning. */ - - if (parser->flow_level) { - parser->flow_level --; - dummy_key = POP(parser, parser->simple_keys); - } - - return 1; -} - -/* - * Push the current indentation level to the stack and set the new level - * the current column is greater than the indentation level. In this case, - * append or insert the specified token into the token queue. - * - */ - -static int -yaml_parser_roll_indent(yaml_parser_t *parser, ptrdiff_t column, - ptrdiff_t number, yaml_token_type_t type, yaml_mark_t mark) -{ - yaml_token_t token; - - /* In the flow context, do nothing. */ - - if (parser->flow_level) - return 1; - - if (parser->indent < column) - { - /* - * Push the current indentation level to the stack and set the new - * indentation level. - */ - - if (!PUSH(parser, parser->indents, parser->indent)) - return 0; - - if (column > INT_MAX) { - parser->error = YAML_MEMORY_ERROR; - return 0; - } - - parser->indent = column; - - /* Create a token and insert it into the queue. */ - - TOKEN_INIT(token, type, mark, mark); - - if (number == -1) { - if (!ENQUEUE(parser, parser->tokens, token)) - return 0; - } - else { - if (!QUEUE_INSERT(parser, - parser->tokens, number - parser->tokens_parsed, token)) - return 0; - } - } - - return 1; -} - -/* - * Pop indentation levels from the indents stack until the current level - * becomes less or equal to the column. For each indentation level, append - * the BLOCK-END token. - */ - - -static int -yaml_parser_unroll_indent(yaml_parser_t *parser, ptrdiff_t column) -{ - yaml_token_t token; - - /* In the flow context, do nothing. */ - - if (parser->flow_level) - return 1; - - /* Loop through the indentation levels in the stack. */ - - while (parser->indent > column) - { - /* Create a token and append it to the queue. */ - - TOKEN_INIT(token, YAML_BLOCK_END_TOKEN, parser->mark, parser->mark); - - if (!ENQUEUE(parser, parser->tokens, token)) - return 0; - - /* Pop the indentation level. */ - - parser->indent = POP(parser, parser->indents); - } - - return 1; -} - -/* - * Initialize the scanner and produce the STREAM-START token. - */ - -static int -yaml_parser_fetch_stream_start(yaml_parser_t *parser) -{ - yaml_simple_key_t simple_key = { 0, 0, 0, { 0, 0, 0 } }; - yaml_token_t token; - - /* Set the initial indentation. */ - - parser->indent = -1; - - /* Initialize the simple key stack. */ - - if (!PUSH(parser, parser->simple_keys, simple_key)) - return 0; - - /* A simple key is allowed at the beginning of the stream. */ - - parser->simple_key_allowed = 1; - - /* We have started. */ - - parser->stream_start_produced = 1; - - /* Create the STREAM-START token and append it to the queue. */ - - STREAM_START_TOKEN_INIT(token, parser->encoding, - parser->mark, parser->mark); - - if (!ENQUEUE(parser, parser->tokens, token)) - return 0; - - return 1; -} - -/* - * Produce the STREAM-END token and shut down the scanner. - */ - -static int -yaml_parser_fetch_stream_end(yaml_parser_t *parser) -{ - yaml_token_t token; - - /* Force new line. */ - - if (parser->mark.column != 0) { - parser->mark.column = 0; - parser->mark.line ++; - } - - /* Reset the indentation level. */ - - if (!yaml_parser_unroll_indent(parser, -1)) - return 0; - - /* Reset simple keys. */ - - if (!yaml_parser_remove_simple_key(parser)) - return 0; - - parser->simple_key_allowed = 0; - - /* Create the STREAM-END token and append it to the queue. */ - - STREAM_END_TOKEN_INIT(token, parser->mark, parser->mark); - - if (!ENQUEUE(parser, parser->tokens, token)) - return 0; - - return 1; -} - -/* - * Produce a VERSION-DIRECTIVE or TAG-DIRECTIVE token. - */ - -static int -yaml_parser_fetch_directive(yaml_parser_t *parser) -{ - yaml_token_t token; - - /* Reset the indentation level. */ - - if (!yaml_parser_unroll_indent(parser, -1)) - return 0; - - /* Reset simple keys. */ - - if (!yaml_parser_remove_simple_key(parser)) - return 0; - - parser->simple_key_allowed = 0; - - /* Create the YAML-DIRECTIVE or TAG-DIRECTIVE token. */ - - if (!yaml_parser_scan_directive(parser, &token)) - return 0; - - /* Append the token to the queue. */ - - if (!ENQUEUE(parser, parser->tokens, token)) { - yaml_token_delete(&token); - return 0; - } - - return 1; -} - -/* - * Produce the DOCUMENT-START or DOCUMENT-END token. - */ - -static int -yaml_parser_fetch_document_indicator(yaml_parser_t *parser, - yaml_token_type_t type) -{ - yaml_mark_t start_mark, end_mark; - yaml_token_t token; - - /* Reset the indentation level. */ - - if (!yaml_parser_unroll_indent(parser, -1)) - return 0; - - /* Reset simple keys. */ - - if (!yaml_parser_remove_simple_key(parser)) - return 0; - - parser->simple_key_allowed = 0; - - /* Consume the token. */ - - start_mark = parser->mark; - - SKIP(parser); - SKIP(parser); - SKIP(parser); - - end_mark = parser->mark; - - /* Create the DOCUMENT-START or DOCUMENT-END token. */ - - TOKEN_INIT(token, type, start_mark, end_mark); - - /* Append the token to the queue. */ - - if (!ENQUEUE(parser, parser->tokens, token)) - return 0; - - return 1; -} - -/* - * Produce the FLOW-SEQUENCE-START or FLOW-MAPPING-START token. - */ - -static int -yaml_parser_fetch_flow_collection_start(yaml_parser_t *parser, - yaml_token_type_t type) -{ - yaml_mark_t start_mark, end_mark; - yaml_token_t token; - - /* The indicators '[' and '{' may start a simple key. */ - - if (!yaml_parser_save_simple_key(parser)) - return 0; - - /* Increase the flow level. */ - - if (!yaml_parser_increase_flow_level(parser)) - return 0; - - /* A simple key may follow the indicators '[' and '{'. */ - - parser->simple_key_allowed = 1; - - /* Consume the token. */ - - start_mark = parser->mark; - SKIP(parser); - end_mark = parser->mark; - - /* Create the FLOW-SEQUENCE-START of FLOW-MAPPING-START token. */ - - TOKEN_INIT(token, type, start_mark, end_mark); - - /* Append the token to the queue. */ - - if (!ENQUEUE(parser, parser->tokens, token)) - return 0; - - return 1; -} - -/* - * Produce the FLOW-SEQUENCE-END or FLOW-MAPPING-END token. - */ - -static int -yaml_parser_fetch_flow_collection_end(yaml_parser_t *parser, - yaml_token_type_t type) -{ - yaml_mark_t start_mark, end_mark; - yaml_token_t token; - - /* Reset any potential simple key on the current flow level. */ - - if (!yaml_parser_remove_simple_key(parser)) - return 0; - - /* Decrease the flow level. */ - - if (!yaml_parser_decrease_flow_level(parser)) - return 0; - - /* No simple keys after the indicators ']' and '}'. */ - - parser->simple_key_allowed = 0; - - /* Consume the token. */ - - start_mark = parser->mark; - SKIP(parser); - end_mark = parser->mark; - - /* Create the FLOW-SEQUENCE-END of FLOW-MAPPING-END token. */ - - TOKEN_INIT(token, type, start_mark, end_mark); - - /* Append the token to the queue. */ - - if (!ENQUEUE(parser, parser->tokens, token)) - return 0; - - return 1; -} - -/* - * Produce the FLOW-ENTRY token. - */ - -static int -yaml_parser_fetch_flow_entry(yaml_parser_t *parser) -{ - yaml_mark_t start_mark, end_mark; - yaml_token_t token; - - /* Reset any potential simple keys on the current flow level. */ - - if (!yaml_parser_remove_simple_key(parser)) - return 0; - - /* Simple keys are allowed after ','. */ - - parser->simple_key_allowed = 1; - - /* Consume the token. */ - - start_mark = parser->mark; - SKIP(parser); - end_mark = parser->mark; - - /* Create the FLOW-ENTRY token and append it to the queue. */ - - TOKEN_INIT(token, YAML_FLOW_ENTRY_TOKEN, start_mark, end_mark); - - if (!ENQUEUE(parser, parser->tokens, token)) - return 0; - - return 1; -} - -/* - * Produce the BLOCK-ENTRY token. - */ - -static int -yaml_parser_fetch_block_entry(yaml_parser_t *parser) -{ - yaml_mark_t start_mark, end_mark; - yaml_token_t token; - - /* Check if the scanner is in the block context. */ - - if (!parser->flow_level) - { - /* Check if we are allowed to start a new entry. */ - - if (!parser->simple_key_allowed) { - return yaml_parser_set_scanner_error(parser, NULL, parser->mark, - "block sequence entries are not allowed in this context"); - } - - /* Add the BLOCK-SEQUENCE-START token if needed. */ - - if (!yaml_parser_roll_indent(parser, parser->mark.column, -1, - YAML_BLOCK_SEQUENCE_START_TOKEN, parser->mark)) - return 0; - } - else - { - /* - * It is an error for the '-' indicator to occur in the flow context, - * but we let the Parser detect and report about it because the Parser - * is able to point to the context. - */ - } - - /* Reset any potential simple keys on the current flow level. */ - - if (!yaml_parser_remove_simple_key(parser)) - return 0; - - /* Simple keys are allowed after '-'. */ - - parser->simple_key_allowed = 1; - - /* Consume the token. */ - - start_mark = parser->mark; - SKIP(parser); - end_mark = parser->mark; - - /* Create the BLOCK-ENTRY token and append it to the queue. */ - - TOKEN_INIT(token, YAML_BLOCK_ENTRY_TOKEN, start_mark, end_mark); - - if (!ENQUEUE(parser, parser->tokens, token)) - return 0; - - return 1; -} - -/* - * Produce the KEY token. - */ - -static int -yaml_parser_fetch_key(yaml_parser_t *parser) -{ - yaml_mark_t start_mark, end_mark; - yaml_token_t token; - - /* In the block context, additional checks are required. */ - - if (!parser->flow_level) - { - /* Check if we are allowed to start a new key (not nessesary simple). */ - - if (!parser->simple_key_allowed) { - return yaml_parser_set_scanner_error(parser, NULL, parser->mark, - "mapping keys are not allowed in this context"); - } - - /* Add the BLOCK-MAPPING-START token if needed. */ - - if (!yaml_parser_roll_indent(parser, parser->mark.column, -1, - YAML_BLOCK_MAPPING_START_TOKEN, parser->mark)) - return 0; - } - - /* Reset any potential simple keys on the current flow level. */ - - if (!yaml_parser_remove_simple_key(parser)) - return 0; - - /* Simple keys are allowed after '?' in the block context. */ - - parser->simple_key_allowed = (!parser->flow_level); - - /* Consume the token. */ - - start_mark = parser->mark; - SKIP(parser); - end_mark = parser->mark; - - /* Create the KEY token and append it to the queue. */ - - TOKEN_INIT(token, YAML_KEY_TOKEN, start_mark, end_mark); - - if (!ENQUEUE(parser, parser->tokens, token)) - return 0; - - return 1; -} - -/* - * Produce the VALUE token. - */ - -static int -yaml_parser_fetch_value(yaml_parser_t *parser) -{ - yaml_mark_t start_mark, end_mark; - yaml_token_t token; - yaml_simple_key_t *simple_key = parser->simple_keys.top-1; - - /* Have we found a simple key? */ - - if (simple_key->possible) - { - - /* Create the KEY token and insert it into the queue. */ - - TOKEN_INIT(token, YAML_KEY_TOKEN, simple_key->mark, simple_key->mark); - - if (!QUEUE_INSERT(parser, parser->tokens, - simple_key->token_number - parser->tokens_parsed, token)) - return 0; - - /* In the block context, we may need to add the BLOCK-MAPPING-START token. */ - - if (!yaml_parser_roll_indent(parser, simple_key->mark.column, - simple_key->token_number, - YAML_BLOCK_MAPPING_START_TOKEN, simple_key->mark)) - return 0; - - /* Remove the simple key. */ - - simple_key->possible = 0; - - /* A simple key cannot follow another simple key. */ - - parser->simple_key_allowed = 0; - } - else - { - /* The ':' indicator follows a complex key. */ - - /* In the block context, extra checks are required. */ - - if (!parser->flow_level) - { - /* Check if we are allowed to start a complex value. */ - - if (!parser->simple_key_allowed) { - return yaml_parser_set_scanner_error(parser, NULL, parser->mark, - "mapping values are not allowed in this context"); - } - - /* Add the BLOCK-MAPPING-START token if needed. */ - - if (!yaml_parser_roll_indent(parser, parser->mark.column, -1, - YAML_BLOCK_MAPPING_START_TOKEN, parser->mark)) - return 0; - } - - /* Simple keys after ':' are allowed in the block context. */ - - parser->simple_key_allowed = (!parser->flow_level); - } - - /* Consume the token. */ - - start_mark = parser->mark; - SKIP(parser); - end_mark = parser->mark; - - /* Create the VALUE token and append it to the queue. */ - - TOKEN_INIT(token, YAML_VALUE_TOKEN, start_mark, end_mark); - - if (!ENQUEUE(parser, parser->tokens, token)) - return 0; - - return 1; -} - -/* - * Produce the ALIAS or ANCHOR token. - */ - -static int -yaml_parser_fetch_anchor(yaml_parser_t *parser, yaml_token_type_t type) -{ - yaml_token_t token; - - /* An anchor or an alias could be a simple key. */ - - if (!yaml_parser_save_simple_key(parser)) - return 0; - - /* A simple key cannot follow an anchor or an alias. */ - - parser->simple_key_allowed = 0; - - /* Create the ALIAS or ANCHOR token and append it to the queue. */ - - if (!yaml_parser_scan_anchor(parser, &token, type)) - return 0; - - if (!ENQUEUE(parser, parser->tokens, token)) { - yaml_token_delete(&token); - return 0; - } - return 1; -} - -/* - * Produce the TAG token. - */ - -static int -yaml_parser_fetch_tag(yaml_parser_t *parser) -{ - yaml_token_t token; - - /* A tag could be a simple key. */ - - if (!yaml_parser_save_simple_key(parser)) - return 0; - - /* A simple key cannot follow a tag. */ - - parser->simple_key_allowed = 0; - - /* Create the TAG token and append it to the queue. */ - - if (!yaml_parser_scan_tag(parser, &token)) - return 0; - - if (!ENQUEUE(parser, parser->tokens, token)) { - yaml_token_delete(&token); - return 0; - } - - return 1; -} - -/* - * Produce the SCALAR(...,literal) or SCALAR(...,folded) tokens. - */ - -static int -yaml_parser_fetch_block_scalar(yaml_parser_t *parser, int literal) -{ - yaml_token_t token; - - /* Remove any potential simple keys. */ - - if (!yaml_parser_remove_simple_key(parser)) - return 0; - - /* A simple key may follow a block scalar. */ - - parser->simple_key_allowed = 1; - - /* Create the SCALAR token and append it to the queue. */ - - if (!yaml_parser_scan_block_scalar(parser, &token, literal)) - return 0; - - if (!ENQUEUE(parser, parser->tokens, token)) { - yaml_token_delete(&token); - return 0; - } - - return 1; -} - -/* - * Produce the SCALAR(...,single-quoted) or SCALAR(...,double-quoted) tokens. - */ - -static int -yaml_parser_fetch_flow_scalar(yaml_parser_t *parser, int single) -{ - yaml_token_t token; - - /* A plain scalar could be a simple key. */ - - if (!yaml_parser_save_simple_key(parser)) - return 0; - - /* A simple key cannot follow a flow scalar. */ - - parser->simple_key_allowed = 0; - - /* Create the SCALAR token and append it to the queue. */ - - if (!yaml_parser_scan_flow_scalar(parser, &token, single)) - return 0; - - if (!ENQUEUE(parser, parser->tokens, token)) { - yaml_token_delete(&token); - return 0; - } - - return 1; -} - -/* - * Produce the SCALAR(...,plain) token. - */ - -static int -yaml_parser_fetch_plain_scalar(yaml_parser_t *parser) -{ - yaml_token_t token; - - /* A plain scalar could be a simple key. */ - - if (!yaml_parser_save_simple_key(parser)) - return 0; - - /* A simple key cannot follow a flow scalar. */ - - parser->simple_key_allowed = 0; - - /* Create the SCALAR token and append it to the queue. */ - - if (!yaml_parser_scan_plain_scalar(parser, &token)) - return 0; - - if (!ENQUEUE(parser, parser->tokens, token)) { - yaml_token_delete(&token); - return 0; - } - - return 1; -} - -/* - * Eat whitespaces and comments until the next token is found. - */ - -static int -yaml_parser_scan_to_next_token(yaml_parser_t *parser) -{ - /* Until the next token is not found. */ - - while (1) - { - /* Allow the BOM mark to start a line. */ - - if (!CACHE(parser, 1)) return 0; - - if (parser->mark.column == 0 && IS_BOM(parser->buffer)) - SKIP(parser); - - /* - * Eat whitespaces. - * - * Tabs are allowed: - * - * - in the flow context; - * - in the block context, but not at the beginning of the line or - * after '-', '?', or ':' (complex value). - */ - - if (!CACHE(parser, 1)) return 0; - - while (CHECK(parser->buffer,' ') || - ((parser->flow_level || !parser->simple_key_allowed) && - CHECK(parser->buffer, '\t'))) { - SKIP(parser); - if (!CACHE(parser, 1)) return 0; - } - - /* Eat a comment until a line break. */ - - if (CHECK(parser->buffer, '#')) { - while (!IS_BREAKZ(parser->buffer)) { - SKIP(parser); - if (!CACHE(parser, 1)) return 0; - } - } - - /* If it is a line break, eat it. */ - - if (IS_BREAK(parser->buffer)) - { - if (!CACHE(parser, 2)) return 0; - SKIP_LINE(parser); - - /* In the block context, a new line may start a simple key. */ - - if (!parser->flow_level) { - parser->simple_key_allowed = 1; - } - } - else - { - /* We have found a token. */ - - break; - } - } - - return 1; -} - -/* - * Scan a YAML-DIRECTIVE or TAG-DIRECTIVE token. - * - * Scope: - * %YAML 1.1 # a comment \n - * ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - * %TAG !yaml! tag:yaml.org,2002: \n - * ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - */ - -int -yaml_parser_scan_directive(yaml_parser_t *parser, yaml_token_t *token) -{ - yaml_mark_t start_mark, end_mark; - yaml_char_t *name = NULL; - int major, minor; - yaml_char_t *handle = NULL, *prefix = NULL; - - /* Eat '%'. */ - - start_mark = parser->mark; - - SKIP(parser); - - /* Scan the directive name. */ - - if (!yaml_parser_scan_directive_name(parser, start_mark, &name)) - goto error; - - /* Is it a YAML directive? */ - - if (strcmp((char *)name, "YAML") == 0) - { - /* Scan the VERSION directive value. */ - - if (!yaml_parser_scan_version_directive_value(parser, start_mark, - &major, &minor)) - goto error; - - end_mark = parser->mark; - - /* Create a VERSION-DIRECTIVE token. */ - - VERSION_DIRECTIVE_TOKEN_INIT(*token, major, minor, - start_mark, end_mark); - } - - /* Is it a TAG directive? */ - - else if (strcmp((char *)name, "TAG") == 0) - { - /* Scan the TAG directive value. */ - - if (!yaml_parser_scan_tag_directive_value(parser, start_mark, - &handle, &prefix)) - goto error; - - end_mark = parser->mark; - - /* Create a TAG-DIRECTIVE token. */ - - TAG_DIRECTIVE_TOKEN_INIT(*token, handle, prefix, - start_mark, end_mark); - } - - /* Unknown directive. */ - - else - { - yaml_parser_set_scanner_error(parser, "while scanning a directive", - start_mark, "found unknown directive name"); - goto error; - } - - /* Eat the rest of the line including any comments. */ - - if (!CACHE(parser, 1)) goto error; - - while (IS_BLANK(parser->buffer)) { - SKIP(parser); - if (!CACHE(parser, 1)) goto error; - } - - if (CHECK(parser->buffer, '#')) { - while (!IS_BREAKZ(parser->buffer)) { - SKIP(parser); - if (!CACHE(parser, 1)) goto error; - } - } - - /* Check if we are at the end of the line. */ - - if (!IS_BREAKZ(parser->buffer)) { - yaml_parser_set_scanner_error(parser, "while scanning a directive", - start_mark, "did not find expected comment or line break"); - goto error; - } - - /* Eat a line break. */ - - if (IS_BREAK(parser->buffer)) { - if (!CACHE(parser, 2)) goto error; - SKIP_LINE(parser); - } - - yaml_free(name); - - return 1; - -error: - yaml_free(prefix); - yaml_free(handle); - yaml_free(name); - return 0; -} - -/* - * Scan the directive name. - * - * Scope: - * %YAML 1.1 # a comment \n - * ^^^^ - * %TAG !yaml! tag:yaml.org,2002: \n - * ^^^ - */ - -static int -yaml_parser_scan_directive_name(yaml_parser_t *parser, - yaml_mark_t start_mark, yaml_char_t **name) -{ - yaml_string_t string = NULL_STRING; - - if (!STRING_INIT(parser, string, INITIAL_STRING_SIZE)) goto error; - - /* Consume the directive name. */ - - if (!CACHE(parser, 1)) goto error; - - while (IS_ALPHA(parser->buffer)) - { - if (!READ(parser, string)) goto error; - if (!CACHE(parser, 1)) goto error; - } - - /* Check if the name is empty. */ - - if (string.start == string.pointer) { - yaml_parser_set_scanner_error(parser, "while scanning a directive", - start_mark, "could not find expected directive name"); - goto error; - } - - /* Check for an blank character after the name. */ - - if (!IS_BLANKZ(parser->buffer)) { - yaml_parser_set_scanner_error(parser, "while scanning a directive", - start_mark, "found unexpected non-alphabetical character"); - goto error; - } - - *name = string.start; - - return 1; - -error: - STRING_DEL(parser, string); - return 0; -} - -/* - * Scan the value of VERSION-DIRECTIVE. - * - * Scope: - * %YAML 1.1 # a comment \n - * ^^^^^^ - */ - -static int -yaml_parser_scan_version_directive_value(yaml_parser_t *parser, - yaml_mark_t start_mark, int *major, int *minor) -{ - /* Eat whitespaces. */ - - if (!CACHE(parser, 1)) return 0; - - while (IS_BLANK(parser->buffer)) { - SKIP(parser); - if (!CACHE(parser, 1)) return 0; - } - - /* Consume the major version number. */ - - if (!yaml_parser_scan_version_directive_number(parser, start_mark, major)) - return 0; - - /* Eat '.'. */ - - if (!CHECK(parser->buffer, '.')) { - return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive", - start_mark, "did not find expected digit or '.' character"); - } - - SKIP(parser); - - /* Consume the minor version number. */ - - if (!yaml_parser_scan_version_directive_number(parser, start_mark, minor)) - return 0; - - return 1; -} - -#define MAX_NUMBER_LENGTH 9 - -/* - * Scan the version number of VERSION-DIRECTIVE. - * - * Scope: - * %YAML 1.1 # a comment \n - * ^ - * %YAML 1.1 # a comment \n - * ^ - */ - -static int -yaml_parser_scan_version_directive_number(yaml_parser_t *parser, - yaml_mark_t start_mark, int *number) -{ - int value = 0; - size_t length = 0; - - /* Repeat while the next character is digit. */ - - if (!CACHE(parser, 1)) return 0; - - while (IS_DIGIT(parser->buffer)) - { - /* Check if the number is too long. */ - - if (++length > MAX_NUMBER_LENGTH) { - return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive", - start_mark, "found extremely long version number"); - } - - value = value*10 + AS_DIGIT(parser->buffer); - - SKIP(parser); - - if (!CACHE(parser, 1)) return 0; - } - - /* Check if the number was present. */ - - if (!length) { - return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive", - start_mark, "did not find expected version number"); - } - - *number = value; - - return 1; -} - -/* - * Scan the value of a TAG-DIRECTIVE token. - * - * Scope: - * %TAG !yaml! tag:yaml.org,2002: \n - * ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - */ - -static int -yaml_parser_scan_tag_directive_value(yaml_parser_t *parser, - yaml_mark_t start_mark, yaml_char_t **handle, yaml_char_t **prefix) -{ - yaml_char_t *handle_value = NULL; - yaml_char_t *prefix_value = NULL; - - /* Eat whitespaces. */ - - if (!CACHE(parser, 1)) goto error; - - while (IS_BLANK(parser->buffer)) { - SKIP(parser); - if (!CACHE(parser, 1)) goto error; - } - - /* Scan a handle. */ - - if (!yaml_parser_scan_tag_handle(parser, 1, start_mark, &handle_value)) - goto error; - - /* Expect a whitespace. */ - - if (!CACHE(parser, 1)) goto error; - - if (!IS_BLANK(parser->buffer)) { - yaml_parser_set_scanner_error(parser, "while scanning a %TAG directive", - start_mark, "did not find expected whitespace"); - goto error; - } - - /* Eat whitespaces. */ - - while (IS_BLANK(parser->buffer)) { - SKIP(parser); - if (!CACHE(parser, 1)) goto error; - } - - /* Scan a prefix. */ - - if (!yaml_parser_scan_tag_uri(parser, 1, NULL, start_mark, &prefix_value)) - goto error; - - /* Expect a whitespace or line break. */ - - if (!CACHE(parser, 1)) goto error; - - if (!IS_BLANKZ(parser->buffer)) { - yaml_parser_set_scanner_error(parser, "while scanning a %TAG directive", - start_mark, "did not find expected whitespace or line break"); - goto error; - } - - *handle = handle_value; - *prefix = prefix_value; - - return 1; - -error: - yaml_free(handle_value); - yaml_free(prefix_value); - return 0; -} - -static int -yaml_parser_scan_anchor(yaml_parser_t *parser, yaml_token_t *token, - yaml_token_type_t type) -{ - int length = 0; - yaml_mark_t start_mark, end_mark; - yaml_string_t string = NULL_STRING; - - if (!STRING_INIT(parser, string, INITIAL_STRING_SIZE)) goto error; - - /* Eat the indicator character. */ - - start_mark = parser->mark; - - SKIP(parser); - - /* Consume the value. */ - - if (!CACHE(parser, 1)) goto error; - - while (IS_ALPHA(parser->buffer)) { - if (!READ(parser, string)) goto error; - if (!CACHE(parser, 1)) goto error; - length ++; - } - - end_mark = parser->mark; - - /* - * Check if length of the anchor is greater than 0 and it is followed by - * a whitespace character or one of the indicators: - * - * '?', ':', ',', ']', '}', '%', '@', '`'. - */ - - if (!length || !(IS_BLANKZ(parser->buffer) || CHECK(parser->buffer, '?') - || CHECK(parser->buffer, ':') || CHECK(parser->buffer, ',') - || CHECK(parser->buffer, ']') || CHECK(parser->buffer, '}') - || CHECK(parser->buffer, '%') || CHECK(parser->buffer, '@') - || CHECK(parser->buffer, '`'))) { - yaml_parser_set_scanner_error(parser, type == YAML_ANCHOR_TOKEN ? - "while scanning an anchor" : "while scanning an alias", start_mark, - "did not find expected alphabetic or numeric character"); - goto error; - } - - /* Create a token. */ - - if (type == YAML_ANCHOR_TOKEN) { - ANCHOR_TOKEN_INIT(*token, string.start, start_mark, end_mark); - } - else { - ALIAS_TOKEN_INIT(*token, string.start, start_mark, end_mark); - } - - return 1; - -error: - STRING_DEL(parser, string); - return 0; -} - -/* - * Scan a TAG token. - */ - -static int -yaml_parser_scan_tag(yaml_parser_t *parser, yaml_token_t *token) -{ - yaml_char_t *handle = NULL; - yaml_char_t *suffix = NULL; - yaml_mark_t start_mark, end_mark; - - start_mark = parser->mark; - - /* Check if the tag is in the canonical form. */ - - if (!CACHE(parser, 2)) goto error; - - if (CHECK_AT(parser->buffer, '<', 1)) - { - /* Set the handle to '' */ - - handle = yaml_malloc(1); - if (!handle) goto error; - handle[0] = '\0'; - - /* Eat '!<' */ - - SKIP(parser); - SKIP(parser); - - /* Consume the tag value. */ - - if (!yaml_parser_scan_tag_uri(parser, 0, NULL, start_mark, &suffix)) - goto error; - - /* Check for '>' and eat it. */ - - if (!CHECK(parser->buffer, '>')) { - yaml_parser_set_scanner_error(parser, "while scanning a tag", - start_mark, "did not find the expected '>'"); - goto error; - } - - SKIP(parser); - } - else - { - /* The tag has either the '!suffix' or the '!handle!suffix' form. */ - - /* First, try to scan a handle. */ - - if (!yaml_parser_scan_tag_handle(parser, 0, start_mark, &handle)) - goto error; - - /* Check if it is, indeed, handle. */ - - if (handle[0] == '!' && handle[1] != '\0' && handle[strlen((char *)handle)-1] == '!') - { - /* Scan the suffix now. */ - - if (!yaml_parser_scan_tag_uri(parser, 0, NULL, start_mark, &suffix)) - goto error; - } - else - { - /* It wasn't a handle after all. Scan the rest of the tag. */ - - if (!yaml_parser_scan_tag_uri(parser, 0, handle, start_mark, &suffix)) - goto error; - - /* Set the handle to '!'. */ - - yaml_free(handle); - handle = yaml_malloc(2); - if (!handle) goto error; - handle[0] = '!'; - handle[1] = '\0'; - - /* - * A special case: the '!' tag. Set the handle to '' and the - * suffix to '!'. - */ - - if (suffix[0] == '\0') { - yaml_char_t *tmp = handle; - handle = suffix; - suffix = tmp; - } - } - } - - /* Check the character which ends the tag. */ - - if (!CACHE(parser, 1)) goto error; - - if (!IS_BLANKZ(parser->buffer)) { - yaml_parser_set_scanner_error(parser, "while scanning a tag", - start_mark, "did not find expected whitespace or line break"); - goto error; - } - - end_mark = parser->mark; - - /* Create a token. */ - - TAG_TOKEN_INIT(*token, handle, suffix, start_mark, end_mark); - - return 1; - -error: - yaml_free(handle); - yaml_free(suffix); - return 0; -} - -/* - * Scan a tag handle. - */ - -static int -yaml_parser_scan_tag_handle(yaml_parser_t *parser, int directive, - yaml_mark_t start_mark, yaml_char_t **handle) -{ - yaml_string_t string = NULL_STRING; - - if (!STRING_INIT(parser, string, INITIAL_STRING_SIZE)) goto error; - - /* Check the initial '!' character. */ - - if (!CACHE(parser, 1)) goto error; - - if (!CHECK(parser->buffer, '!')) { - yaml_parser_set_scanner_error(parser, directive ? - "while scanning a tag directive" : "while scanning a tag", - start_mark, "did not find expected '!'"); - goto error; - } - - /* Copy the '!' character. */ - - if (!READ(parser, string)) goto error; - - /* Copy all subsequent alphabetical and numerical characters. */ - - if (!CACHE(parser, 1)) goto error; - - while (IS_ALPHA(parser->buffer)) - { - if (!READ(parser, string)) goto error; - if (!CACHE(parser, 1)) goto error; - } - - /* Check if the trailing character is '!' and copy it. */ - - if (CHECK(parser->buffer, '!')) - { - if (!READ(parser, string)) goto error; - } - else - { - /* - * It's either the '!' tag or not really a tag handle. If it's a %TAG - * directive, it's an error. If it's a tag token, it must be a part of - * URI. - */ - - if (directive && !(string.start[0] == '!' && string.start[1] == '\0')) { - yaml_parser_set_scanner_error(parser, "while parsing a tag directive", - start_mark, "did not find expected '!'"); - goto error; - } - } - - *handle = string.start; - - return 1; - -error: - STRING_DEL(parser, string); - return 0; -} - -/* - * Scan a tag. - */ - -static int -yaml_parser_scan_tag_uri(yaml_parser_t *parser, int directive, - yaml_char_t *head, yaml_mark_t start_mark, yaml_char_t **uri) -{ - size_t length = head ? strlen((char *)head) : 0; - yaml_string_t string = NULL_STRING; - - if (!STRING_INIT(parser, string, INITIAL_STRING_SIZE)) goto error; - - /* Resize the string to include the head. */ - - while ((size_t)(string.end - string.start) <= length) { - if (!yaml_string_extend(&string.start, &string.pointer, &string.end)) { - parser->error = YAML_MEMORY_ERROR; - goto error; - } - } - - /* - * Copy the head if needed. - * - * Note that we don't copy the leading '!' character. - */ - - if (length > 1) { - memcpy(string.start, head+1, length-1); - string.pointer += length-1; - } - - /* Scan the tag. */ - - if (!CACHE(parser, 1)) goto error; - - /* - * The set of characters that may appear in URI is as follows: - * - * '0'-'9', 'A'-'Z', 'a'-'z', '_', '-', ';', '/', '?', ':', '@', '&', - * '=', '+', '$', ',', '.', '!', '~', '*', '\'', '(', ')', '[', ']', - * '%'. - */ - - while (IS_ALPHA(parser->buffer) || CHECK(parser->buffer, ';') - || CHECK(parser->buffer, '/') || CHECK(parser->buffer, '?') - || CHECK(parser->buffer, ':') || CHECK(parser->buffer, '@') - || CHECK(parser->buffer, '&') || CHECK(parser->buffer, '=') - || CHECK(parser->buffer, '+') || CHECK(parser->buffer, '$') - || CHECK(parser->buffer, ',') || CHECK(parser->buffer, '.') - || CHECK(parser->buffer, '!') || CHECK(parser->buffer, '~') - || CHECK(parser->buffer, '*') || CHECK(parser->buffer, '\'') - || CHECK(parser->buffer, '(') || CHECK(parser->buffer, ')') - || CHECK(parser->buffer, '[') || CHECK(parser->buffer, ']') - || CHECK(parser->buffer, '%')) - { - /* Check if it is a URI-escape sequence. */ - - if (CHECK(parser->buffer, '%')) { - if (!STRING_EXTEND(parser, string)) - goto error; - - if (!yaml_parser_scan_uri_escapes(parser, - directive, start_mark, &string)) goto error; - } - else { - if (!READ(parser, string)) goto error; - } - - length ++; - if (!CACHE(parser, 1)) goto error; - } - - /* Check if the tag is non-empty. */ - - if (!length) { - if (!STRING_EXTEND(parser, string)) - goto error; - - yaml_parser_set_scanner_error(parser, directive ? - "while parsing a %TAG directive" : "while parsing a tag", - start_mark, "did not find expected tag URI"); - goto error; - } - - *uri = string.start; - - return 1; - -error: - STRING_DEL(parser, string); - return 0; -} - -/* - * Decode an URI-escape sequence corresponding to a single UTF-8 character. - */ - -static int -yaml_parser_scan_uri_escapes(yaml_parser_t *parser, int directive, - yaml_mark_t start_mark, yaml_string_t *string) -{ - int width = 0; - - /* Decode the required number of characters. */ - - do { - - unsigned char octet = 0; - - /* Check for a URI-escaped octet. */ - - if (!CACHE(parser, 3)) return 0; - - if (!(CHECK(parser->buffer, '%') - && IS_HEX_AT(parser->buffer, 1) - && IS_HEX_AT(parser->buffer, 2))) { - return yaml_parser_set_scanner_error(parser, directive ? - "while parsing a %TAG directive" : "while parsing a tag", - start_mark, "did not find URI escaped octet"); - } - - /* Get the octet. */ - - octet = (AS_HEX_AT(parser->buffer, 1) << 4) + AS_HEX_AT(parser->buffer, 2); - - /* If it is the leading octet, determine the length of the UTF-8 sequence. */ - - if (!width) - { - width = (octet & 0x80) == 0x00 ? 1 : - (octet & 0xE0) == 0xC0 ? 2 : - (octet & 0xF0) == 0xE0 ? 3 : - (octet & 0xF8) == 0xF0 ? 4 : 0; - if (!width) { - return yaml_parser_set_scanner_error(parser, directive ? - "while parsing a %TAG directive" : "while parsing a tag", - start_mark, "found an incorrect leading UTF-8 octet"); - } - } - else - { - /* Check if the trailing octet is correct. */ - - if ((octet & 0xC0) != 0x80) { - return yaml_parser_set_scanner_error(parser, directive ? - "while parsing a %TAG directive" : "while parsing a tag", - start_mark, "found an incorrect trailing UTF-8 octet"); - } - } - - /* Copy the octet and move the pointers. */ - - *(string->pointer++) = octet; - SKIP(parser); - SKIP(parser); - SKIP(parser); - - } while (--width); - - return 1; -} - -/* - * Scan a block scalar. - */ - -static int -yaml_parser_scan_block_scalar(yaml_parser_t *parser, yaml_token_t *token, - int literal) -{ - yaml_mark_t start_mark; - yaml_mark_t end_mark; - yaml_string_t string = NULL_STRING; - yaml_string_t leading_break = NULL_STRING; - yaml_string_t trailing_breaks = NULL_STRING; - int chomping = 0; - int increment = 0; - int indent = 0; - int leading_blank = 0; - int trailing_blank = 0; - - if (!STRING_INIT(parser, string, INITIAL_STRING_SIZE)) goto error; - if (!STRING_INIT(parser, leading_break, INITIAL_STRING_SIZE)) goto error; - if (!STRING_INIT(parser, trailing_breaks, INITIAL_STRING_SIZE)) goto error; - - /* Eat the indicator '|' or '>'. */ - - start_mark = parser->mark; - - SKIP(parser); - - /* Scan the additional block scalar indicators. */ - - if (!CACHE(parser, 1)) goto error; - - /* Check for a chomping indicator. */ - - if (CHECK(parser->buffer, '+') || CHECK(parser->buffer, '-')) - { - /* Set the chomping method and eat the indicator. */ - - chomping = CHECK(parser->buffer, '+') ? +1 : -1; - - SKIP(parser); - - /* Check for an indentation indicator. */ - - if (!CACHE(parser, 1)) goto error; - - if (IS_DIGIT(parser->buffer)) - { - /* Check that the indentation is greater than 0. */ - - if (CHECK(parser->buffer, '0')) { - yaml_parser_set_scanner_error(parser, "while scanning a block scalar", - start_mark, "found an indentation indicator equal to 0"); - goto error; - } - - /* Get the indentation level and eat the indicator. */ - - increment = AS_DIGIT(parser->buffer); - - SKIP(parser); - } - } - - /* Do the same as above, but in the opposite order. */ - - else if (IS_DIGIT(parser->buffer)) - { - if (CHECK(parser->buffer, '0')) { - yaml_parser_set_scanner_error(parser, "while scanning a block scalar", - start_mark, "found an indentation indicator equal to 0"); - goto error; - } - - increment = AS_DIGIT(parser->buffer); - - SKIP(parser); - - if (!CACHE(parser, 1)) goto error; - - if (CHECK(parser->buffer, '+') || CHECK(parser->buffer, '-')) { - chomping = CHECK(parser->buffer, '+') ? +1 : -1; - - SKIP(parser); - } - } - - /* Eat whitespaces and comments to the end of the line. */ - - if (!CACHE(parser, 1)) goto error; - - while (IS_BLANK(parser->buffer)) { - SKIP(parser); - if (!CACHE(parser, 1)) goto error; - } - - if (CHECK(parser->buffer, '#')) { - while (!IS_BREAKZ(parser->buffer)) { - SKIP(parser); - if (!CACHE(parser, 1)) goto error; - } - } - - /* Check if we are at the end of the line. */ - - if (!IS_BREAKZ(parser->buffer)) { - yaml_parser_set_scanner_error(parser, "while scanning a block scalar", - start_mark, "did not find expected comment or line break"); - goto error; - } - - /* Eat a line break. */ - - if (IS_BREAK(parser->buffer)) { - if (!CACHE(parser, 2)) goto error; - SKIP_LINE(parser); - } - - end_mark = parser->mark; - - /* Set the indentation level if it was specified. */ - - if (increment) { - indent = parser->indent >= 0 ? parser->indent+increment : increment; - } - - /* Scan the leading line breaks and determine the indentation level if needed. */ - - if (!yaml_parser_scan_block_scalar_breaks(parser, &indent, &trailing_breaks, - start_mark, &end_mark)) goto error; - - /* Scan the block scalar content. */ - - if (!CACHE(parser, 1)) goto error; - - while ((int)parser->mark.column == indent && !IS_Z(parser->buffer)) - { - /* - * We are at the beginning of a non-empty line. - */ - - /* Is it a trailing whitespace? */ - - trailing_blank = IS_BLANK(parser->buffer); - - /* Check if we need to fold the leading line break. */ - - if (!literal && (*leading_break.start == '\n') - && !leading_blank && !trailing_blank) - { - /* Do we need to join the lines by space? */ - - if (*trailing_breaks.start == '\0') { - if (!STRING_EXTEND(parser, string)) goto error; - *(string.pointer ++) = ' '; - } - - CLEAR(parser, leading_break); - } - else { - if (!JOIN(parser, string, leading_break)) goto error; - CLEAR(parser, leading_break); - } - - /* Append the remaining line breaks. */ - - if (!JOIN(parser, string, trailing_breaks)) goto error; - CLEAR(parser, trailing_breaks); - - /* Is it a leading whitespace? */ - - leading_blank = IS_BLANK(parser->buffer); - - /* Consume the current line. */ - - while (!IS_BREAKZ(parser->buffer)) { - if (!READ(parser, string)) goto error; - if (!CACHE(parser, 1)) goto error; - } - - /* Consume the line break. */ - - if (!CACHE(parser, 2)) goto error; - - if (!READ_LINE(parser, leading_break)) goto error; - - /* Eat the following indentation spaces and line breaks. */ - - if (!yaml_parser_scan_block_scalar_breaks(parser, - &indent, &trailing_breaks, start_mark, &end_mark)) goto error; - } - - /* Chomp the tail. */ - - if (chomping != -1) { - if (!JOIN(parser, string, leading_break)) goto error; - } - if (chomping == 1) { - if (!JOIN(parser, string, trailing_breaks)) goto error; - } - - /* Create a token. */ - - SCALAR_TOKEN_INIT(*token, string.start, string.pointer-string.start, - literal ? YAML_LITERAL_SCALAR_STYLE : YAML_FOLDED_SCALAR_STYLE, - start_mark, end_mark); - - STRING_DEL(parser, leading_break); - STRING_DEL(parser, trailing_breaks); - - return 1; - -error: - STRING_DEL(parser, string); - STRING_DEL(parser, leading_break); - STRING_DEL(parser, trailing_breaks); - - return 0; -} - -/* - * Scan indentation spaces and line breaks for a block scalar. Determine the - * indentation level if needed. - */ - -static int -yaml_parser_scan_block_scalar_breaks(yaml_parser_t *parser, - int *indent, yaml_string_t *breaks, - yaml_mark_t start_mark, yaml_mark_t *end_mark) -{ - int max_indent = 0; - - *end_mark = parser->mark; - - /* Eat the indentation spaces and line breaks. */ - - while (1) - { - /* Eat the indentation spaces. */ - - if (!CACHE(parser, 1)) return 0; - - while ((!*indent || (int)parser->mark.column < *indent) - && IS_SPACE(parser->buffer)) { - SKIP(parser); - if (!CACHE(parser, 1)) return 0; - } - - if ((int)parser->mark.column > max_indent) - max_indent = (int)parser->mark.column; - - /* Check for a tab character messing the indentation. */ - - if ((!*indent || (int)parser->mark.column < *indent) - && IS_TAB(parser->buffer)) { - return yaml_parser_set_scanner_error(parser, "while scanning a block scalar", - start_mark, "found a tab character where an indentation space is expected"); - } - - /* Have we found a non-empty line? */ - - if (!IS_BREAK(parser->buffer)) break; - - /* Consume the line break. */ - - if (!CACHE(parser, 2)) return 0; - if (!READ_LINE(parser, *breaks)) return 0; - *end_mark = parser->mark; - } - - /* Determine the indentation level if needed. */ - - if (!*indent) { - *indent = max_indent; - if (*indent < parser->indent + 1) - *indent = parser->indent + 1; - if (*indent < 1) - *indent = 1; - } - - return 1; -} - -/* - * Scan a quoted scalar. - */ - -static int -yaml_parser_scan_flow_scalar(yaml_parser_t *parser, yaml_token_t *token, - int single) -{ - yaml_mark_t start_mark; - yaml_mark_t end_mark; - yaml_string_t string = NULL_STRING; - yaml_string_t leading_break = NULL_STRING; - yaml_string_t trailing_breaks = NULL_STRING; - yaml_string_t whitespaces = NULL_STRING; - int leading_blanks; - - if (!STRING_INIT(parser, string, INITIAL_STRING_SIZE)) goto error; - if (!STRING_INIT(parser, leading_break, INITIAL_STRING_SIZE)) goto error; - if (!STRING_INIT(parser, trailing_breaks, INITIAL_STRING_SIZE)) goto error; - if (!STRING_INIT(parser, whitespaces, INITIAL_STRING_SIZE)) goto error; - - /* Eat the left quote. */ - - start_mark = parser->mark; - - SKIP(parser); - - /* Consume the content of the quoted scalar. */ - - while (1) - { - /* Check that there are no document indicators at the beginning of the line. */ - - if (!CACHE(parser, 4)) goto error; - - if (parser->mark.column == 0 && - ((CHECK_AT(parser->buffer, '-', 0) && - CHECK_AT(parser->buffer, '-', 1) && - CHECK_AT(parser->buffer, '-', 2)) || - (CHECK_AT(parser->buffer, '.', 0) && - CHECK_AT(parser->buffer, '.', 1) && - CHECK_AT(parser->buffer, '.', 2))) && - IS_BLANKZ_AT(parser->buffer, 3)) - { - yaml_parser_set_scanner_error(parser, "while scanning a quoted scalar", - start_mark, "found unexpected document indicator"); - goto error; - } - - /* Check for EOF. */ - - if (IS_Z(parser->buffer)) { - yaml_parser_set_scanner_error(parser, "while scanning a quoted scalar", - start_mark, "found unexpected end of stream"); - goto error; - } - - /* Consume non-blank characters. */ - - if (!CACHE(parser, 2)) goto error; - - leading_blanks = 0; - - while (!IS_BLANKZ(parser->buffer)) - { - /* Check for an escaped single quote. */ - - if (single && CHECK_AT(parser->buffer, '\'', 0) - && CHECK_AT(parser->buffer, '\'', 1)) - { - if (!STRING_EXTEND(parser, string)) goto error; - *(string.pointer++) = '\''; - SKIP(parser); - SKIP(parser); - } - - /* Check for the right quote. */ - - else if (CHECK(parser->buffer, single ? '\'' : '"')) - { - break; - } - - /* Check for an escaped line break. */ - - else if (!single && CHECK(parser->buffer, '\\') - && IS_BREAK_AT(parser->buffer, 1)) - { - if (!CACHE(parser, 3)) goto error; - SKIP(parser); - SKIP_LINE(parser); - leading_blanks = 1; - break; - } - - /* Check for an escape sequence. */ - - else if (!single && CHECK(parser->buffer, '\\')) - { - size_t code_length = 0; - - if (!STRING_EXTEND(parser, string)) goto error; - - /* Check the escape character. */ - - switch (parser->buffer.pointer[1]) - { - case '0': - *(string.pointer++) = '\0'; - break; - - case 'a': - *(string.pointer++) = '\x07'; - break; - - case 'b': - *(string.pointer++) = '\x08'; - break; - - case 't': - case '\t': - *(string.pointer++) = '\x09'; - break; - - case 'n': - *(string.pointer++) = '\x0A'; - break; - - case 'v': - *(string.pointer++) = '\x0B'; - break; - - case 'f': - *(string.pointer++) = '\x0C'; - break; - - case 'r': - *(string.pointer++) = '\x0D'; - break; - - case 'e': - *(string.pointer++) = '\x1B'; - break; - - case ' ': - *(string.pointer++) = '\x20'; - break; - - case '"': - *(string.pointer++) = '"'; - break; - - case '\'': - *(string.pointer++) = '\''; - break; - - case '\\': - *(string.pointer++) = '\\'; - break; - - case 'N': /* NEL (#x85) */ - *(string.pointer++) = '\xC2'; - *(string.pointer++) = '\x85'; - break; - - case '_': /* #xA0 */ - *(string.pointer++) = '\xC2'; - *(string.pointer++) = '\xA0'; - break; - - case 'L': /* LS (#x2028) */ - *(string.pointer++) = '\xE2'; - *(string.pointer++) = '\x80'; - *(string.pointer++) = '\xA8'; - break; - - case 'P': /* PS (#x2029) */ - *(string.pointer++) = '\xE2'; - *(string.pointer++) = '\x80'; - *(string.pointer++) = '\xA9'; - break; - - case 'x': - code_length = 2; - break; - - case 'u': - code_length = 4; - break; - - case 'U': - code_length = 8; - break; - - default: - yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar", - start_mark, "found unknown escape character"); - goto error; - } - - SKIP(parser); - SKIP(parser); - - /* Consume an arbitrary escape code. */ - - if (code_length) - { - unsigned int value = 0; - size_t k; - - /* Scan the character value. */ - - if (!CACHE(parser, code_length)) goto error; - - for (k = 0; k < code_length; k ++) { - if (!IS_HEX_AT(parser->buffer, k)) { - yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar", - start_mark, "did not find expected hexdecimal number"); - goto error; - } - value = (value << 4) + AS_HEX_AT(parser->buffer, k); - } - - /* Check the value and write the character. */ - - if ((value >= 0xD800 && value <= 0xDFFF) || value > 0x10FFFF) { - yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar", - start_mark, "found invalid Unicode character escape code"); - goto error; - } - - if (value <= 0x7F) { - *(string.pointer++) = value; - } - else if (value <= 0x7FF) { - *(string.pointer++) = 0xC0 + (value >> 6); - *(string.pointer++) = 0x80 + (value & 0x3F); - } - else if (value <= 0xFFFF) { - *(string.pointer++) = 0xE0 + (value >> 12); - *(string.pointer++) = 0x80 + ((value >> 6) & 0x3F); - *(string.pointer++) = 0x80 + (value & 0x3F); - } - else { - *(string.pointer++) = 0xF0 + (value >> 18); - *(string.pointer++) = 0x80 + ((value >> 12) & 0x3F); - *(string.pointer++) = 0x80 + ((value >> 6) & 0x3F); - *(string.pointer++) = 0x80 + (value & 0x3F); - } - - /* Advance the pointer. */ - - for (k = 0; k < code_length; k ++) { - SKIP(parser); - } - } - } - - else - { - /* It is a non-escaped non-blank character. */ - - if (!READ(parser, string)) goto error; - } - - if (!CACHE(parser, 2)) goto error; - } - - /* Check if we are at the end of the scalar. */ - - if (CHECK(parser->buffer, single ? '\'' : '"')) - break; - - /* Consume blank characters. */ - - if (!CACHE(parser, 1)) goto error; - - while (IS_BLANK(parser->buffer) || IS_BREAK(parser->buffer)) - { - if (IS_BLANK(parser->buffer)) - { - /* Consume a space or a tab character. */ - - if (!leading_blanks) { - if (!READ(parser, whitespaces)) goto error; - } - else { - SKIP(parser); - } - } - else - { - if (!CACHE(parser, 2)) goto error; - - /* Check if it is a first line break. */ - - if (!leading_blanks) - { - CLEAR(parser, whitespaces); - if (!READ_LINE(parser, leading_break)) goto error; - leading_blanks = 1; - } - else - { - if (!READ_LINE(parser, trailing_breaks)) goto error; - } - } - if (!CACHE(parser, 1)) goto error; - } - - /* Join the whitespaces or fold line breaks. */ - - if (leading_blanks) - { - /* Do we need to fold line breaks? */ - - if (leading_break.start[0] == '\n') { - if (trailing_breaks.start[0] == '\0') { - if (!STRING_EXTEND(parser, string)) goto error; - *(string.pointer++) = ' '; - } - else { - if (!JOIN(parser, string, trailing_breaks)) goto error; - CLEAR(parser, trailing_breaks); - } - CLEAR(parser, leading_break); - } - else { - if (!JOIN(parser, string, leading_break)) goto error; - if (!JOIN(parser, string, trailing_breaks)) goto error; - CLEAR(parser, leading_break); - CLEAR(parser, trailing_breaks); - } - } - else - { - if (!JOIN(parser, string, whitespaces)) goto error; - CLEAR(parser, whitespaces); - } - } - - /* Eat the right quote. */ - - SKIP(parser); - - end_mark = parser->mark; - - /* Create a token. */ - - SCALAR_TOKEN_INIT(*token, string.start, string.pointer-string.start, - single ? YAML_SINGLE_QUOTED_SCALAR_STYLE : YAML_DOUBLE_QUOTED_SCALAR_STYLE, - start_mark, end_mark); - - STRING_DEL(parser, leading_break); - STRING_DEL(parser, trailing_breaks); - STRING_DEL(parser, whitespaces); - - return 1; - -error: - STRING_DEL(parser, string); - STRING_DEL(parser, leading_break); - STRING_DEL(parser, trailing_breaks); - STRING_DEL(parser, whitespaces); - - return 0; -} - -/* - * Scan a plain scalar. - */ - -static int -yaml_parser_scan_plain_scalar(yaml_parser_t *parser, yaml_token_t *token) -{ - yaml_mark_t start_mark; - yaml_mark_t end_mark; - yaml_string_t string = NULL_STRING; - yaml_string_t leading_break = NULL_STRING; - yaml_string_t trailing_breaks = NULL_STRING; - yaml_string_t whitespaces = NULL_STRING; - int leading_blanks = 0; - int indent = parser->indent+1; - - if (!STRING_INIT(parser, string, INITIAL_STRING_SIZE)) goto error; - if (!STRING_INIT(parser, leading_break, INITIAL_STRING_SIZE)) goto error; - if (!STRING_INIT(parser, trailing_breaks, INITIAL_STRING_SIZE)) goto error; - if (!STRING_INIT(parser, whitespaces, INITIAL_STRING_SIZE)) goto error; - - start_mark = end_mark = parser->mark; - - /* Consume the content of the plain scalar. */ - - while (1) - { - /* Check for a document indicator. */ - - if (!CACHE(parser, 4)) goto error; - - if (parser->mark.column == 0 && - ((CHECK_AT(parser->buffer, '-', 0) && - CHECK_AT(parser->buffer, '-', 1) && - CHECK_AT(parser->buffer, '-', 2)) || - (CHECK_AT(parser->buffer, '.', 0) && - CHECK_AT(parser->buffer, '.', 1) && - CHECK_AT(parser->buffer, '.', 2))) && - IS_BLANKZ_AT(parser->buffer, 3)) break; - - /* Check for a comment. */ - - if (CHECK(parser->buffer, '#')) - break; - - /* Consume non-blank characters. */ - - while (!IS_BLANKZ(parser->buffer)) - { - /* Check for 'x:x' in the flow context. TODO: Fix the test "spec-08-13". */ - - if (parser->flow_level - && CHECK(parser->buffer, ':') - && !IS_BLANKZ_AT(parser->buffer, 1)) { - yaml_parser_set_scanner_error(parser, "while scanning a plain scalar", - start_mark, "found unexpected ':'"); - goto error; - } - - /* Check for indicators that may end a plain scalar. */ - - if ((CHECK(parser->buffer, ':') && IS_BLANKZ_AT(parser->buffer, 1)) - || (parser->flow_level && - (CHECK(parser->buffer, ',') || CHECK(parser->buffer, ':') - || CHECK(parser->buffer, '?') || CHECK(parser->buffer, '[') - || CHECK(parser->buffer, ']') || CHECK(parser->buffer, '{') - || CHECK(parser->buffer, '}')))) - break; - - /* Check if we need to join whitespaces and breaks. */ - - if (leading_blanks || whitespaces.start != whitespaces.pointer) - { - if (leading_blanks) - { - /* Do we need to fold line breaks? */ - - if (leading_break.start[0] == '\n') { - if (trailing_breaks.start[0] == '\0') { - if (!STRING_EXTEND(parser, string)) goto error; - *(string.pointer++) = ' '; - } - else { - if (!JOIN(parser, string, trailing_breaks)) goto error; - CLEAR(parser, trailing_breaks); - } - CLEAR(parser, leading_break); - } - else { - if (!JOIN(parser, string, leading_break)) goto error; - if (!JOIN(parser, string, trailing_breaks)) goto error; - CLEAR(parser, leading_break); - CLEAR(parser, trailing_breaks); - } - - leading_blanks = 0; - } - else - { - if (!JOIN(parser, string, whitespaces)) goto error; - CLEAR(parser, whitespaces); - } - } - - /* Copy the character. */ - - if (!READ(parser, string)) goto error; - - end_mark = parser->mark; - - if (!CACHE(parser, 2)) goto error; - } - - /* Is it the end? */ - - if (!(IS_BLANK(parser->buffer) || IS_BREAK(parser->buffer))) - break; - - /* Consume blank characters. */ - - if (!CACHE(parser, 1)) goto error; - - while (IS_BLANK(parser->buffer) || IS_BREAK(parser->buffer)) - { - if (IS_BLANK(parser->buffer)) - { - /* 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 violates indentation"); - goto error; - } - - /* Consume a space or a tab character. */ - - if (!leading_blanks) { - if (!READ(parser, whitespaces)) goto error; - } - else { - SKIP(parser); - } - } - else - { - if (!CACHE(parser, 2)) goto error; - - /* Check if it is a first line break. */ - - if (!leading_blanks) - { - CLEAR(parser, whitespaces); - if (!READ_LINE(parser, leading_break)) goto error; - leading_blanks = 1; - } - else - { - if (!READ_LINE(parser, trailing_breaks)) goto error; - } - } - if (!CACHE(parser, 1)) goto error; - } - - /* Check indentation level. */ - - if (!parser->flow_level && (int)parser->mark.column < indent) - break; - } - - /* Create a token. */ - - SCALAR_TOKEN_INIT(*token, string.start, string.pointer-string.start, - YAML_PLAIN_SCALAR_STYLE, start_mark, end_mark); - - /* Note that we change the 'simple_key_allowed' flag. */ - - if (leading_blanks) { - parser->simple_key_allowed = 1; - } - - STRING_DEL(parser, leading_break); - STRING_DEL(parser, trailing_breaks); - STRING_DEL(parser, whitespaces); - - return 1; - -error: - STRING_DEL(parser, string); - STRING_DEL(parser, leading_break); - STRING_DEL(parser, trailing_breaks); - STRING_DEL(parser, whitespaces); - - return 0; -} - diff --git a/ruby_2_2/ext/psych/yaml/writer.c b/ruby_2_2/ext/psych/yaml/writer.c deleted file mode 100644 index 5d57f392f1..0000000000 --- a/ruby_2_2/ext/psych/yaml/writer.c +++ /dev/null @@ -1,141 +0,0 @@ - -#include "yaml_private.h" - -/* - * Declarations. - */ - -static int -yaml_emitter_set_writer_error(yaml_emitter_t *emitter, const char *problem); - -YAML_DECLARE(int) -yaml_emitter_flush(yaml_emitter_t *emitter); - -/* - * Set the writer error and return 0. - */ - -static int -yaml_emitter_set_writer_error(yaml_emitter_t *emitter, const char *problem) -{ - emitter->error = YAML_WRITER_ERROR; - emitter->problem = problem; - - return 0; -} - -/* - * Flush the output buffer. - */ - -YAML_DECLARE(int) -yaml_emitter_flush(yaml_emitter_t *emitter) -{ - int low, high; - - assert(emitter); /* Non-NULL emitter object is expected. */ - assert(emitter->write_handler); /* Write handler must be set. */ - assert(emitter->encoding); /* Output encoding must be set. */ - - emitter->buffer.last = emitter->buffer.pointer; - emitter->buffer.pointer = emitter->buffer.start; - - /* Check if the buffer is empty. */ - - if (emitter->buffer.start == emitter->buffer.last) { - return 1; - } - - /* If the output encoding is UTF-8, we don't need to recode the buffer. */ - - if (emitter->encoding == YAML_UTF8_ENCODING) - { - if (emitter->write_handler(emitter->write_handler_data, - emitter->buffer.start, - emitter->buffer.last - emitter->buffer.start)) { - emitter->buffer.last = emitter->buffer.start; - emitter->buffer.pointer = emitter->buffer.start; - return 1; - } - else { - return yaml_emitter_set_writer_error(emitter, "write error"); - } - } - - /* Recode the buffer into the raw buffer. */ - - low = (emitter->encoding == YAML_UTF16LE_ENCODING ? 0 : 1); - high = (emitter->encoding == YAML_UTF16LE_ENCODING ? 1 : 0); - - while (emitter->buffer.pointer != emitter->buffer.last) - { - unsigned char octet; - unsigned int width; - unsigned int value; - size_t k; - - /* - * See the "reader.c" code for more details on UTF-8 encoding. Note - * that we assume that the buffer contains a valid UTF-8 sequence. - */ - - /* Read the next UTF-8 character. */ - - octet = emitter->buffer.pointer[0]; - - width = (octet & 0x80) == 0x00 ? 1 : - (octet & 0xE0) == 0xC0 ? 2 : - (octet & 0xF0) == 0xE0 ? 3 : - (octet & 0xF8) == 0xF0 ? 4 : 0; - - value = (octet & 0x80) == 0x00 ? octet & 0x7F : - (octet & 0xE0) == 0xC0 ? octet & 0x1F : - (octet & 0xF0) == 0xE0 ? octet & 0x0F : - (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0; - - for (k = 1; k < width; k ++) { - octet = emitter->buffer.pointer[k]; - value = (value << 6) + (octet & 0x3F); - } - - emitter->buffer.pointer += width; - - /* Write the character. */ - - if (value < 0x10000) - { - emitter->raw_buffer.last[high] = value >> 8; - emitter->raw_buffer.last[low] = value & 0xFF; - - emitter->raw_buffer.last += 2; - } - else - { - /* Write the character using a surrogate pair (check "reader.c"). */ - - value -= 0x10000; - emitter->raw_buffer.last[high] = 0xD8 + (value >> 18); - emitter->raw_buffer.last[low] = (value >> 10) & 0xFF; - emitter->raw_buffer.last[high+2] = 0xDC + ((value >> 8) & 0xFF); - emitter->raw_buffer.last[low+2] = value & 0xFF; - - emitter->raw_buffer.last += 4; - } - } - - /* Write the raw buffer. */ - - if (emitter->write_handler(emitter->write_handler_data, - emitter->raw_buffer.start, - emitter->raw_buffer.last - emitter->raw_buffer.start)) { - emitter->buffer.last = emitter->buffer.start; - emitter->buffer.pointer = emitter->buffer.start; - emitter->raw_buffer.last = emitter->raw_buffer.start; - emitter->raw_buffer.pointer = emitter->raw_buffer.start; - return 1; - } - else { - return yaml_emitter_set_writer_error(emitter, "write error"); - } -} - diff --git a/ruby_2_2/ext/psych/yaml/yaml.h b/ruby_2_2/ext/psych/yaml/yaml.h deleted file mode 100644 index f33a152594..0000000000 --- a/ruby_2_2/ext/psych/yaml/yaml.h +++ /dev/null @@ -1,1971 +0,0 @@ -/** - * @file yaml.h - * @brief Public interface for libyaml. - * - * Include the header file with the code: - * @code - * #include <yaml.h> - * @endcode - */ - -#ifndef YAML_H -#define YAML_H - -#ifdef __cplusplus -extern "C" { -#endif - -#include <stdlib.h> -#include <stdio.h> -#include <string.h> - -/** - * @defgroup export Export Definitions - * @{ - */ - -/** The public API declaration. */ - -#ifdef _WIN32 -# if defined(YAML_DECLARE_STATIC) -# define YAML_DECLARE(type) type -# elif defined(YAML_DECLARE_EXPORT) -# define YAML_DECLARE(type) __declspec(dllexport) type -# else -# define YAML_DECLARE(type) __declspec(dllimport) type -# endif -#else -# define YAML_DECLARE(type) type -#endif - -/** @} */ - -/** - * @defgroup version Version Information - * @{ - */ - -/** - * Get the library version as a string. - * - * @returns The function returns the pointer to a static string of the form - * @c "X.Y.Z", where @c X is the major version number, @c Y is a minor version - * number, and @c Z is the patch version number. - */ - -YAML_DECLARE(const char *) -yaml_get_version_string(void); - -/** - * Get the library version numbers. - * - * @param[out] major Major version number. - * @param[out] minor Minor version number. - * @param[out] patch Patch version number. - */ - -YAML_DECLARE(void) -yaml_get_version(int *major, int *minor, int *patch); - -/** @} */ - -/** - * @defgroup basic Basic Types - * @{ - */ - -/** The character type (UTF-8 octet). */ -typedef unsigned char yaml_char_t; - -/** The version directive data. */ -typedef struct yaml_version_directive_s { - /** The major version number. */ - int major; - /** The minor version number. */ - int minor; -} yaml_version_directive_t; - -/** The tag directive data. */ -typedef struct yaml_tag_directive_s { - /** The tag handle. */ - yaml_char_t *handle; - /** The tag prefix. */ - yaml_char_t *prefix; -} yaml_tag_directive_t; - -/** The stream encoding. */ -typedef enum yaml_encoding_e { - /** Let the parser choose the encoding. */ - YAML_ANY_ENCODING, - /** The default UTF-8 encoding. */ - YAML_UTF8_ENCODING, - /** The UTF-16-LE encoding with BOM. */ - YAML_UTF16LE_ENCODING, - /** The UTF-16-BE encoding with BOM. */ - YAML_UTF16BE_ENCODING -} yaml_encoding_t; - -/** Line break types. */ - -typedef enum yaml_break_e { - /** Let the parser choose the break type. */ - YAML_ANY_BREAK, - /** Use CR for line breaks (Mac style). */ - YAML_CR_BREAK, - /** Use LN for line breaks (Unix style). */ - YAML_LN_BREAK, - /** Use CR LN for line breaks (DOS style). */ - YAML_CRLN_BREAK -} yaml_break_t; - -/** Many bad things could happen with the parser and emitter. */ -typedef enum yaml_error_type_e { - /** No error is produced. */ - YAML_NO_ERROR, - - /** Cannot allocate or reallocate a block of memory. */ - YAML_MEMORY_ERROR, - - /** Cannot read or decode the input stream. */ - YAML_READER_ERROR, - /** Cannot scan the input stream. */ - YAML_SCANNER_ERROR, - /** Cannot parse the input stream. */ - YAML_PARSER_ERROR, - /** Cannot compose a YAML document. */ - YAML_COMPOSER_ERROR, - - /** Cannot write to the output stream. */ - YAML_WRITER_ERROR, - /** Cannot emit a YAML stream. */ - YAML_EMITTER_ERROR -} yaml_error_type_t; - -/** The pointer position. */ -typedef struct yaml_mark_s { - /** The position index. */ - size_t index; - - /** The position line. */ - size_t line; - - /** The position column. */ - size_t column; -} yaml_mark_t; - -/** @} */ - -/** - * @defgroup styles Node Styles - * @{ - */ - -/** Scalar styles. */ -typedef enum yaml_scalar_style_e { - /** Let the emitter choose the style. */ - YAML_ANY_SCALAR_STYLE, - - /** The plain scalar style. */ - YAML_PLAIN_SCALAR_STYLE, - - /** The single-quoted scalar style. */ - YAML_SINGLE_QUOTED_SCALAR_STYLE, - /** The double-quoted scalar style. */ - YAML_DOUBLE_QUOTED_SCALAR_STYLE, - - /** The literal scalar style. */ - YAML_LITERAL_SCALAR_STYLE, - /** The folded scalar style. */ - YAML_FOLDED_SCALAR_STYLE -} yaml_scalar_style_t; - -/** Sequence styles. */ -typedef enum yaml_sequence_style_e { - /** Let the emitter choose the style. */ - YAML_ANY_SEQUENCE_STYLE, - - /** The block sequence style. */ - YAML_BLOCK_SEQUENCE_STYLE, - /** The flow sequence style. */ - YAML_FLOW_SEQUENCE_STYLE -} yaml_sequence_style_t; - -/** Mapping styles. */ -typedef enum yaml_mapping_style_e { - /** Let the emitter choose the style. */ - YAML_ANY_MAPPING_STYLE, - - /** The block mapping style. */ - YAML_BLOCK_MAPPING_STYLE, - /** The flow mapping style. */ - YAML_FLOW_MAPPING_STYLE -/* YAML_FLOW_SET_MAPPING_STYLE */ -} yaml_mapping_style_t; - -/** @} */ - -/** - * @defgroup tokens Tokens - * @{ - */ - -/** Token types. */ -typedef enum yaml_token_type_e { - /** An empty token. */ - YAML_NO_TOKEN, - - /** A STREAM-START token. */ - YAML_STREAM_START_TOKEN, - /** A STREAM-END token. */ - YAML_STREAM_END_TOKEN, - - /** A VERSION-DIRECTIVE token. */ - YAML_VERSION_DIRECTIVE_TOKEN, - /** A TAG-DIRECTIVE token. */ - YAML_TAG_DIRECTIVE_TOKEN, - /** A DOCUMENT-START token. */ - YAML_DOCUMENT_START_TOKEN, - /** A DOCUMENT-END token. */ - YAML_DOCUMENT_END_TOKEN, - - /** A BLOCK-SEQUENCE-START token. */ - YAML_BLOCK_SEQUENCE_START_TOKEN, - /** A BLOCK-SEQUENCE-END token. */ - YAML_BLOCK_MAPPING_START_TOKEN, - /** A BLOCK-END token. */ - YAML_BLOCK_END_TOKEN, - - /** A FLOW-SEQUENCE-START token. */ - YAML_FLOW_SEQUENCE_START_TOKEN, - /** A FLOW-SEQUENCE-END token. */ - YAML_FLOW_SEQUENCE_END_TOKEN, - /** A FLOW-MAPPING-START token. */ - YAML_FLOW_MAPPING_START_TOKEN, - /** A FLOW-MAPPING-END token. */ - YAML_FLOW_MAPPING_END_TOKEN, - - /** A BLOCK-ENTRY token. */ - YAML_BLOCK_ENTRY_TOKEN, - /** A FLOW-ENTRY token. */ - YAML_FLOW_ENTRY_TOKEN, - /** A KEY token. */ - YAML_KEY_TOKEN, - /** A VALUE token. */ - YAML_VALUE_TOKEN, - - /** An ALIAS token. */ - YAML_ALIAS_TOKEN, - /** An ANCHOR token. */ - YAML_ANCHOR_TOKEN, - /** A TAG token. */ - YAML_TAG_TOKEN, - /** A SCALAR token. */ - YAML_SCALAR_TOKEN -} yaml_token_type_t; - -/** The token structure. */ -typedef struct yaml_token_s { - - /** The token type. */ - yaml_token_type_t type; - - /** The token data. */ - union { - - /** The stream start (for @c YAML_STREAM_START_TOKEN). */ - struct { - /** The stream encoding. */ - yaml_encoding_t encoding; - } stream_start; - - /** The alias (for @c YAML_ALIAS_TOKEN). */ - struct { - /** The alias value. */ - yaml_char_t *value; - } alias; - - /** The anchor (for @c YAML_ANCHOR_TOKEN). */ - struct { - /** The anchor value. */ - yaml_char_t *value; - } anchor; - - /** The tag (for @c YAML_TAG_TOKEN). */ - struct { - /** The tag handle. */ - yaml_char_t *handle; - /** The tag suffix. */ - yaml_char_t *suffix; - } tag; - - /** The scalar value (for @c YAML_SCALAR_TOKEN). */ - struct { - /** The scalar value. */ - yaml_char_t *value; - /** The length of the scalar value. */ - size_t length; - /** The scalar style. */ - yaml_scalar_style_t style; - } scalar; - - /** The version directive (for @c YAML_VERSION_DIRECTIVE_TOKEN). */ - struct { - /** The major version number. */ - int major; - /** The minor version number. */ - int minor; - } version_directive; - - /** The tag directive (for @c YAML_TAG_DIRECTIVE_TOKEN). */ - struct { - /** The tag handle. */ - yaml_char_t *handle; - /** The tag prefix. */ - yaml_char_t *prefix; - } tag_directive; - - } data; - - /** The beginning of the token. */ - yaml_mark_t start_mark; - /** The end of the token. */ - yaml_mark_t end_mark; - -} yaml_token_t; - -/** - * Free any memory allocated for a token object. - * - * @param[in,out] token A token object. - */ - -YAML_DECLARE(void) -yaml_token_delete(yaml_token_t *token); - -/** @} */ - -/** - * @defgroup events Events - * @{ - */ - -/** Event types. */ -typedef enum yaml_event_type_e { - /** An empty event. */ - YAML_NO_EVENT, - - /** A STREAM-START event. */ - YAML_STREAM_START_EVENT, - /** A STREAM-END event. */ - YAML_STREAM_END_EVENT, - - /** A DOCUMENT-START event. */ - YAML_DOCUMENT_START_EVENT, - /** A DOCUMENT-END event. */ - YAML_DOCUMENT_END_EVENT, - - /** An ALIAS event. */ - YAML_ALIAS_EVENT, - /** A SCALAR event. */ - YAML_SCALAR_EVENT, - - /** A SEQUENCE-START event. */ - YAML_SEQUENCE_START_EVENT, - /** A SEQUENCE-END event. */ - YAML_SEQUENCE_END_EVENT, - - /** A MAPPING-START event. */ - YAML_MAPPING_START_EVENT, - /** A MAPPING-END event. */ - YAML_MAPPING_END_EVENT -} yaml_event_type_t; - -/** The event structure. */ -typedef struct yaml_event_s { - - /** The event type. */ - yaml_event_type_t type; - - /** The event data. */ - union { - - /** The stream parameters (for @c YAML_STREAM_START_EVENT). */ - struct { - /** The document encoding. */ - yaml_encoding_t encoding; - } stream_start; - - /** The document parameters (for @c YAML_DOCUMENT_START_EVENT). */ - struct { - /** The version directive. */ - yaml_version_directive_t *version_directive; - - /** The list of tag directives. */ - struct { - /** The beginning of the tag directives list. */ - yaml_tag_directive_t *start; - /** The end of the tag directives list. */ - yaml_tag_directive_t *end; - } tag_directives; - - /** Is the document indicator implicit? */ - int implicit; - } document_start; - - /** The document end parameters (for @c YAML_DOCUMENT_END_EVENT). */ - struct { - /** Is the document end indicator implicit? */ - int implicit; - } document_end; - - /** The alias parameters (for @c YAML_ALIAS_EVENT). */ - struct { - /** The anchor. */ - yaml_char_t *anchor; - } alias; - - /** The scalar parameters (for @c YAML_SCALAR_EVENT). */ - struct { - /** The anchor. */ - yaml_char_t *anchor; - /** The tag. */ - yaml_char_t *tag; - /** The scalar value. */ - yaml_char_t *value; - /** The length of the scalar value. */ - size_t length; - /** Is the tag optional for the plain style? */ - int plain_implicit; - /** Is the tag optional for any non-plain style? */ - int quoted_implicit; - /** The scalar style. */ - yaml_scalar_style_t style; - } scalar; - - /** The sequence parameters (for @c YAML_SEQUENCE_START_EVENT). */ - struct { - /** The anchor. */ - yaml_char_t *anchor; - /** The tag. */ - yaml_char_t *tag; - /** Is the tag optional? */ - int implicit; - /** The sequence style. */ - yaml_sequence_style_t style; - } sequence_start; - - /** The mapping parameters (for @c YAML_MAPPING_START_EVENT). */ - struct { - /** The anchor. */ - yaml_char_t *anchor; - /** The tag. */ - yaml_char_t *tag; - /** Is the tag optional? */ - int implicit; - /** The mapping style. */ - yaml_mapping_style_t style; - } mapping_start; - - } data; - - /** The beginning of the event. */ - yaml_mark_t start_mark; - /** The end of the event. */ - yaml_mark_t end_mark; - -} yaml_event_t; - -/** - * Create the STREAM-START event. - * - * @param[out] event An empty event object. - * @param[in] encoding The stream encoding. - * - * @returns @c 1 if the function succeeded, @c 0 on error. - */ - -YAML_DECLARE(int) -yaml_stream_start_event_initialize(yaml_event_t *event, - yaml_encoding_t encoding); - -/** - * Create the STREAM-END event. - * - * @param[out] event An empty event object. - * - * @returns @c 1 if the function succeeded, @c 0 on error. - */ - -YAML_DECLARE(int) -yaml_stream_end_event_initialize(yaml_event_t *event); - -/** - * Create the DOCUMENT-START event. - * - * The @a implicit argument is considered as a stylistic parameter and may be - * ignored by the emitter. - * - * @param[out] event An empty event object. - * @param[in] version_directive The %YAML directive value or - * @c NULL. - * @param[in] tag_directives_start The beginning of the %TAG - * directives list. - * @param[in] tag_directives_end The end of the %TAG directives - * list. - * @param[in] implicit If the document start indicator is - * implicit. - * - * @returns @c 1 if the function succeeded, @c 0 on error. - */ - -YAML_DECLARE(int) -yaml_document_start_event_initialize(yaml_event_t *event, - yaml_version_directive_t *version_directive, - yaml_tag_directive_t *tag_directives_start, - yaml_tag_directive_t *tag_directives_end, - int implicit); - -/** - * Create the DOCUMENT-END event. - * - * The @a implicit argument is considered as a stylistic parameter and may be - * ignored by the emitter. - * - * @param[out] event An empty event object. - * @param[in] implicit If the document end indicator is implicit. - * - * @returns @c 1 if the function succeeded, @c 0 on error. - */ - -YAML_DECLARE(int) -yaml_document_end_event_initialize(yaml_event_t *event, int implicit); - -/** - * Create an ALIAS event. - * - * @param[out] event An empty event object. - * @param[in] anchor The anchor value. - * - * @returns @c 1 if the function succeeded, @c 0 on error. - */ - -YAML_DECLARE(int) -yaml_alias_event_initialize(yaml_event_t *event, yaml_char_t *anchor); - -/** - * Create a SCALAR event. - * - * The @a style argument may be ignored by the emitter. - * - * Either the @a tag attribute or one of the @a plain_implicit and - * @a quoted_implicit flags must be set. - * - * @param[out] event An empty event object. - * @param[in] anchor The scalar anchor or @c NULL. - * @param[in] tag The scalar tag or @c NULL. - * @param[in] value The scalar value. - * @param[in] length The length of the scalar value. - * @param[in] plain_implicit If the tag may be omitted for the plain - * style. - * @param[in] quoted_implicit If the tag may be omitted for any - * non-plain style. - * @param[in] style The scalar style. - * - * @returns @c 1 if the function succeeded, @c 0 on error. - */ - -YAML_DECLARE(int) -yaml_scalar_event_initialize(yaml_event_t *event, - yaml_char_t *anchor, yaml_char_t *tag, - yaml_char_t *value, int length, - int plain_implicit, int quoted_implicit, - yaml_scalar_style_t style); - -/** - * Create a SEQUENCE-START event. - * - * The @a style argument may be ignored by the emitter. - * - * Either the @a tag attribute or the @a implicit flag must be set. - * - * @param[out] event An empty event object. - * @param[in] anchor The sequence anchor or @c NULL. - * @param[in] tag The sequence tag or @c NULL. - * @param[in] implicit If the tag may be omitted. - * @param[in] style The sequence style. - * - * @returns @c 1 if the function succeeded, @c 0 on error. - */ - -YAML_DECLARE(int) -yaml_sequence_start_event_initialize(yaml_event_t *event, - yaml_char_t *anchor, yaml_char_t *tag, int implicit, - yaml_sequence_style_t style); - -/** - * Create a SEQUENCE-END event. - * - * @param[out] event An empty event object. - * - * @returns @c 1 if the function succeeded, @c 0 on error. - */ - -YAML_DECLARE(int) -yaml_sequence_end_event_initialize(yaml_event_t *event); - -/** - * Create a MAPPING-START event. - * - * The @a style argument may be ignored by the emitter. - * - * Either the @a tag attribute or the @a implicit flag must be set. - * - * @param[out] event An empty event object. - * @param[in] anchor The mapping anchor or @c NULL. - * @param[in] tag The mapping tag or @c NULL. - * @param[in] implicit If the tag may be omitted. - * @param[in] style The mapping style. - * - * @returns @c 1 if the function succeeded, @c 0 on error. - */ - -YAML_DECLARE(int) -yaml_mapping_start_event_initialize(yaml_event_t *event, - yaml_char_t *anchor, yaml_char_t *tag, int implicit, - yaml_mapping_style_t style); - -/** - * Create a MAPPING-END event. - * - * @param[out] event An empty event object. - * - * @returns @c 1 if the function succeeded, @c 0 on error. - */ - -YAML_DECLARE(int) -yaml_mapping_end_event_initialize(yaml_event_t *event); - -/** - * Free any memory allocated for an event object. - * - * @param[in,out] event An event object. - */ - -YAML_DECLARE(void) -yaml_event_delete(yaml_event_t *event); - -/** @} */ - -/** - * @defgroup nodes Nodes - * @{ - */ - -/** The tag @c !!null with the only possible value: @c null. */ -#define YAML_NULL_TAG "tag:yaml.org,2002:null" -/** The tag @c !!bool with the values: @c true and @c falce. */ -#define YAML_BOOL_TAG "tag:yaml.org,2002:bool" -/** The tag @c !!str for string values. */ -#define YAML_STR_TAG "tag:yaml.org,2002:str" -/** The tag @c !!int for integer values. */ -#define YAML_INT_TAG "tag:yaml.org,2002:int" -/** The tag @c !!float for float values. */ -#define YAML_FLOAT_TAG "tag:yaml.org,2002:float" -/** The tag @c !!timestamp for date and time values. */ -#define YAML_TIMESTAMP_TAG "tag:yaml.org,2002:timestamp" - -/** The tag @c !!seq is used to denote sequences. */ -#define YAML_SEQ_TAG "tag:yaml.org,2002:seq" -/** The tag @c !!map is used to denote mapping. */ -#define YAML_MAP_TAG "tag:yaml.org,2002:map" - -/** The default scalar tag is @c !!str. */ -#define YAML_DEFAULT_SCALAR_TAG YAML_STR_TAG -/** The default sequence tag is @c !!seq. */ -#define YAML_DEFAULT_SEQUENCE_TAG YAML_SEQ_TAG -/** The default mapping tag is @c !!map. */ -#define YAML_DEFAULT_MAPPING_TAG YAML_MAP_TAG - -/** Node types. */ -typedef enum yaml_node_type_e { - /** An empty node. */ - YAML_NO_NODE, - - /** A scalar node. */ - YAML_SCALAR_NODE, - /** A sequence node. */ - YAML_SEQUENCE_NODE, - /** A mapping node. */ - YAML_MAPPING_NODE -} yaml_node_type_t; - -/** The forward definition of a document node structure. */ -typedef struct yaml_node_s yaml_node_t; - -/** An element of a sequence node. */ -typedef int yaml_node_item_t; - -/** An element of a mapping node. */ -typedef struct yaml_node_pair_s { - /** The key of the element. */ - int key; - /** The value of the element. */ - int value; -} yaml_node_pair_t; - -/** The node structure. */ -struct yaml_node_s { - - /** The node type. */ - yaml_node_type_t type; - - /** The node tag. */ - yaml_char_t *tag; - - /** The node data. */ - union { - - /** The scalar parameters (for @c YAML_SCALAR_NODE). */ - struct { - /** The scalar value. */ - yaml_char_t *value; - /** The length of the scalar value. */ - size_t length; - /** The scalar style. */ - yaml_scalar_style_t style; - } scalar; - - /** The sequence parameters (for @c YAML_SEQUENCE_NODE). */ - struct { - /** The stack of sequence items. */ - struct { - /** The beginning of the stack. */ - yaml_node_item_t *start; - /** The end of the stack. */ - yaml_node_item_t *end; - /** The top of the stack. */ - yaml_node_item_t *top; - } items; - /** The sequence style. */ - yaml_sequence_style_t style; - } sequence; - - /** The mapping parameters (for @c YAML_MAPPING_NODE). */ - struct { - /** The stack of mapping pairs (key, value). */ - struct { - /** The beginning of the stack. */ - yaml_node_pair_t *start; - /** The end of the stack. */ - yaml_node_pair_t *end; - /** The top of the stack. */ - yaml_node_pair_t *top; - } pairs; - /** The mapping style. */ - yaml_mapping_style_t style; - } mapping; - - } data; - - /** The beginning of the node. */ - yaml_mark_t start_mark; - /** The end of the node. */ - yaml_mark_t end_mark; - -}; - -/** The document structure. */ -typedef struct yaml_document_s { - - /** The document nodes. */ - struct { - /** The beginning of the stack. */ - yaml_node_t *start; - /** The end of the stack. */ - yaml_node_t *end; - /** The top of the stack. */ - yaml_node_t *top; - } nodes; - - /** The version directive. */ - yaml_version_directive_t *version_directive; - - /** The list of tag directives. */ - struct { - /** The beginning of the tag directives list. */ - yaml_tag_directive_t *start; - /** The end of the tag directives list. */ - yaml_tag_directive_t *end; - } tag_directives; - - /** Is the document start indicator implicit? */ - int start_implicit; - /** Is the document end indicator implicit? */ - int end_implicit; - - /** The beginning of the document. */ - yaml_mark_t start_mark; - /** The end of the document. */ - yaml_mark_t end_mark; - -} yaml_document_t; - -/** - * Create a YAML document. - * - * @param[out] document An empty document object. - * @param[in] version_directive The %YAML directive value or - * @c NULL. - * @param[in] tag_directives_start The beginning of the %TAG - * directives list. - * @param[in] tag_directives_end The end of the %TAG directives - * list. - * @param[in] start_implicit If the document start indicator is - * implicit. - * @param[in] end_implicit If the document end indicator is - * implicit. - * - * @returns @c 1 if the function succeeded, @c 0 on error. - */ - -YAML_DECLARE(int) -yaml_document_initialize(yaml_document_t *document, - yaml_version_directive_t *version_directive, - yaml_tag_directive_t *tag_directives_start, - yaml_tag_directive_t *tag_directives_end, - int start_implicit, int end_implicit); - -/** - * Delete a YAML document and all its nodes. - * - * @param[in,out] document A document object. - */ - -YAML_DECLARE(void) -yaml_document_delete(yaml_document_t *document); - -/** - * Get a node of a YAML document. - * - * The pointer returned by this function is valid until any of the functions - * modifying the documents are called. - * - * @param[in] document A document object. - * @param[in] index The node id. - * - * @returns the node objct or @c NULL if @c node_id is out of range. - */ - -YAML_DECLARE(yaml_node_t *) -yaml_document_get_node(yaml_document_t *document, int index); - -/** - * Get the root of a YAML document node. - * - * The root object is the first object added to the document. - * - * The pointer returned by this function is valid until any of the functions - * modifying the documents are called. - * - * An empty document produced by the parser signifies the end of a YAML - * stream. - * - * @param[in] document A document object. - * - * @returns the node object or @c NULL if the document is empty. - */ - -YAML_DECLARE(yaml_node_t *) -yaml_document_get_root_node(yaml_document_t *document); - -/** - * Create a SCALAR node and attach it to the document. - * - * The @a style argument may be ignored by the emitter. - * - * @param[in,out] document A document object. - * @param[in] tag The scalar tag. - * @param[in] value The scalar value. - * @param[in] length The length of the scalar value. - * @param[in] style The scalar style. - * - * @returns the node id or @c 0 on error. - */ - -YAML_DECLARE(int) -yaml_document_add_scalar(yaml_document_t *document, - yaml_char_t *tag, yaml_char_t *value, int length, - yaml_scalar_style_t style); - -/** - * Create a SEQUENCE node and attach it to the document. - * - * The @a style argument may be ignored by the emitter. - * - * @param[in,out] document A document object. - * @param[in] tag The sequence tag. - * @param[in] style The sequence style. - * - * @returns the node id or @c 0 on error. - */ - -YAML_DECLARE(int) -yaml_document_add_sequence(yaml_document_t *document, - yaml_char_t *tag, yaml_sequence_style_t style); - -/** - * Create a MAPPING node and attach it to the document. - * - * The @a style argument may be ignored by the emitter. - * - * @param[in,out] document A document object. - * @param[in] tag The sequence tag. - * @param[in] style The sequence style. - * - * @returns the node id or @c 0 on error. - */ - -YAML_DECLARE(int) -yaml_document_add_mapping(yaml_document_t *document, - yaml_char_t *tag, yaml_mapping_style_t style); - -/** - * Add an item to a SEQUENCE node. - * - * @param[in,out] document A document object. - * @param[in] sequence The sequence node id. - * @param[in] item The item node id. -* - * @returns @c 1 if the function succeeded, @c 0 on error. - */ - -YAML_DECLARE(int) -yaml_document_append_sequence_item(yaml_document_t *document, - int sequence, int item); - -/** - * Add a pair of a key and a value to a MAPPING node. - * - * @param[in,out] document A document object. - * @param[in] mapping The mapping node id. - * @param[in] key The key node id. - * @param[in] value The value node id. -* - * @returns @c 1 if the function succeeded, @c 0 on error. - */ - -YAML_DECLARE(int) -yaml_document_append_mapping_pair(yaml_document_t *document, - int mapping, int key, int value); - -/** @} */ - -/** - * @defgroup parser Parser Definitions - * @{ - */ - -/** - * The prototype of a read handler. - * - * The read handler is called when the parser needs to read more bytes from the - * source. The handler should write not more than @a size bytes to the @a - * buffer. The number of written bytes should be set to the @a length variable. - * - * @param[in,out] data A pointer to an application data specified by - * yaml_parser_set_input(). - * @param[out] buffer The buffer to write the data from the source. - * @param[in] size The size of the buffer. - * @param[out] size_read The actual number of bytes read from the source. - * - * @returns On success, the handler should return @c 1. If the handler failed, - * the returned value should be @c 0. On EOF, the handler should set the - * @a size_read to @c 0 and return @c 1. - */ - -typedef int yaml_read_handler_t(void *data, unsigned char *buffer, size_t size, - size_t *size_read); - -/** - * This structure holds information about a potential simple key. - */ - -typedef struct yaml_simple_key_s { - /** Is a simple key possible? */ - int possible; - - /** Is a simple key required? */ - int required; - - /** The number of the token. */ - size_t token_number; - - /** The position mark. */ - yaml_mark_t mark; -} yaml_simple_key_t; - -/** - * The states of the parser. - */ -typedef enum yaml_parser_state_e { - /** Expect STREAM-START. */ - YAML_PARSE_STREAM_START_STATE, - /** Expect the beginning of an implicit document. */ - YAML_PARSE_IMPLICIT_DOCUMENT_START_STATE, - /** Expect DOCUMENT-START. */ - YAML_PARSE_DOCUMENT_START_STATE, - /** Expect the content of a document. */ - YAML_PARSE_DOCUMENT_CONTENT_STATE, - /** Expect DOCUMENT-END. */ - YAML_PARSE_DOCUMENT_END_STATE, - /** Expect a block node. */ - YAML_PARSE_BLOCK_NODE_STATE, - /** Expect a block node or indentless sequence. */ - YAML_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE, - /** Expect a flow node. */ - YAML_PARSE_FLOW_NODE_STATE, - /** Expect the first entry of a block sequence. */ - YAML_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE, - /** Expect an entry of a block sequence. */ - YAML_PARSE_BLOCK_SEQUENCE_ENTRY_STATE, - /** Expect an entry of an indentless sequence. */ - YAML_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE, - /** Expect the first key of a block mapping. */ - YAML_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE, - /** Expect a block mapping key. */ - YAML_PARSE_BLOCK_MAPPING_KEY_STATE, - /** Expect a block mapping value. */ - YAML_PARSE_BLOCK_MAPPING_VALUE_STATE, - /** Expect the first entry of a flow sequence. */ - YAML_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE, - /** Expect an entry of a flow sequence. */ - YAML_PARSE_FLOW_SEQUENCE_ENTRY_STATE, - /** Expect a key of an ordered mapping. */ - YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE, - /** Expect a value of an ordered mapping. */ - YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE, - /** Expect the and of an ordered mapping entry. */ - YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE, - /** Expect the first key of a flow mapping. */ - YAML_PARSE_FLOW_MAPPING_FIRST_KEY_STATE, - /** Expect a key of a flow mapping. */ - YAML_PARSE_FLOW_MAPPING_KEY_STATE, - /** Expect a value of a flow mapping. */ - YAML_PARSE_FLOW_MAPPING_VALUE_STATE, - /** Expect an empty value of a flow mapping. */ - YAML_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE, - /** Expect nothing. */ - YAML_PARSE_END_STATE -} yaml_parser_state_t; - -/** - * This structure holds aliases data. - */ - -typedef struct yaml_alias_data_s { - /** The anchor. */ - yaml_char_t *anchor; - /** The node id. */ - int index; - /** The anchor mark. */ - yaml_mark_t mark; -} yaml_alias_data_t; - -/** - * The parser structure. - * - * All members are internal. Manage the structure using the @c yaml_parser_ - * family of functions. - */ - -typedef struct yaml_parser_s { - - /** - * @name Error handling - * @{ - */ - - /** Error type. */ - yaml_error_type_t error; - /** Error description. */ - const char *problem; - /** The byte about which the problem occurred. */ - size_t problem_offset; - /** The problematic value (@c -1 is none). */ - int problem_value; - /** The problem position. */ - yaml_mark_t problem_mark; - /** The error context. */ - const char *context; - /** The context position. */ - yaml_mark_t context_mark; - - /** - * @} - */ - - /** - * @name Reader stuff - * @{ - */ - - /** Read handler. */ - yaml_read_handler_t *read_handler; - - /** A pointer for passing to the read handler. */ - void *read_handler_data; - - /** Standard (string or file) input data. */ - union { - /** String input data. */ - struct { - /** The string start pointer. */ - const unsigned char *start; - /** The string end pointer. */ - const unsigned char *end; - /** The string current position. */ - const unsigned char *current; - } string; - - /** File input data. */ - FILE *file; - } input; - - /** EOF flag */ - int eof; - - /** The working buffer. */ - struct { - /** The beginning of the buffer. */ - yaml_char_t *start; - /** The end of the buffer. */ - yaml_char_t *end; - /** The current position of the buffer. */ - yaml_char_t *pointer; - /** The last filled position of the buffer. */ - yaml_char_t *last; - } buffer; - - /* The number of unread characters in the buffer. */ - size_t unread; - - /** The raw buffer. */ - struct { - /** The beginning of the buffer. */ - unsigned char *start; - /** The end of the buffer. */ - unsigned char *end; - /** The current position of the buffer. */ - unsigned char *pointer; - /** The last filled position of the buffer. */ - unsigned char *last; - } raw_buffer; - - /** The input encoding. */ - yaml_encoding_t encoding; - - /** The offset of the current position (in bytes). */ - size_t offset; - - /** The mark of the current position. */ - yaml_mark_t mark; - - /** - * @} - */ - - /** - * @name Scanner stuff - * @{ - */ - - /** Have we started to scan the input stream? */ - int stream_start_produced; - - /** Have we reached the end of the input stream? */ - int stream_end_produced; - - /** The number of unclosed '[' and '{' indicators. */ - int flow_level; - - /** The tokens queue. */ - struct { - /** The beginning of the tokens queue. */ - yaml_token_t *start; - /** The end of the tokens queue. */ - yaml_token_t *end; - /** The head of the tokens queue. */ - yaml_token_t *head; - /** The tail of the tokens queue. */ - yaml_token_t *tail; - } tokens; - - /** The number of tokens fetched from the queue. */ - size_t tokens_parsed; - - /* Does the tokens queue contain a token ready for dequeueing. */ - int token_available; - - /** The indentation levels stack. */ - struct { - /** The beginning of the stack. */ - int *start; - /** The end of the stack. */ - int *end; - /** The top of the stack. */ - int *top; - } indents; - - /** The current indentation level. */ - int indent; - - /** May a simple key occur at the current position? */ - int simple_key_allowed; - - /** The stack of simple keys. */ - struct { - /** The beginning of the stack. */ - yaml_simple_key_t *start; - /** The end of the stack. */ - yaml_simple_key_t *end; - /** The top of the stack. */ - yaml_simple_key_t *top; - } simple_keys; - - /** - * @} - */ - - /** - * @name Parser stuff - * @{ - */ - - /** The parser states stack. */ - struct { - /** The beginning of the stack. */ - yaml_parser_state_t *start; - /** The end of the stack. */ - yaml_parser_state_t *end; - /** The top of the stack. */ - yaml_parser_state_t *top; - } states; - - /** The current parser state. */ - yaml_parser_state_t state; - - /** The stack of marks. */ - struct { - /** The beginning of the stack. */ - yaml_mark_t *start; - /** The end of the stack. */ - yaml_mark_t *end; - /** The top of the stack. */ - yaml_mark_t *top; - } marks; - - /** The list of TAG directives. */ - struct { - /** The beginning of the list. */ - yaml_tag_directive_t *start; - /** The end of the list. */ - yaml_tag_directive_t *end; - /** The top of the list. */ - yaml_tag_directive_t *top; - } tag_directives; - - /** - * @} - */ - - /** - * @name Dumper stuff - * @{ - */ - - /** The alias data. */ - struct { - /** The beginning of the list. */ - yaml_alias_data_t *start; - /** The end of the list. */ - yaml_alias_data_t *end; - /** The top of the list. */ - yaml_alias_data_t *top; - } aliases; - - /** The currently parsed document. */ - yaml_document_t *document; - - /** - * @} - */ - -} yaml_parser_t; - -/** - * Initialize a parser. - * - * This function creates a new parser object. An application is responsible - * for destroying the object using the yaml_parser_delete() function. - * - * @param[out] parser An empty parser object. - * - * @returns @c 1 if the function succeeded, @c 0 on error. - */ - -YAML_DECLARE(int) -yaml_parser_initialize(yaml_parser_t *parser); - -/** - * Destroy a parser. - * - * @param[in,out] parser A parser object. - */ - -YAML_DECLARE(void) -yaml_parser_delete(yaml_parser_t *parser); - -/** - * Set a string input. - * - * Note that the @a input pointer must be valid while the @a parser object - * exists. The application is responsible for destroing @a input after - * destroying the @a parser. - * - * @param[in,out] parser A parser object. - * @param[in] input A source data. - * @param[in] size The length of the source data in bytes. - */ - -YAML_DECLARE(void) -yaml_parser_set_input_string(yaml_parser_t *parser, - const unsigned char *input, size_t size); - -/** - * Set a file input. - * - * @a file should be a file object open for reading. The application is - * responsible for closing the @a file. - * - * @param[in,out] parser A parser object. - * @param[in] file An open file. - */ - -YAML_DECLARE(void) -yaml_parser_set_input_file(yaml_parser_t *parser, FILE *file); - -/** - * Set a generic input handler. - * - * @param[in,out] parser A parser object. - * @param[in] handler A read handler. - * @param[in] data Any application data for passing to the read - * handler. - */ - -YAML_DECLARE(void) -yaml_parser_set_input(yaml_parser_t *parser, - yaml_read_handler_t *handler, void *data); - -/** - * Set the source encoding. - * - * @param[in,out] parser A parser object. - * @param[in] encoding The source encoding. - */ - -YAML_DECLARE(void) -yaml_parser_set_encoding(yaml_parser_t *parser, yaml_encoding_t encoding); - -/** - * Scan the input stream and produce the next token. - * - * Call the function subsequently to produce a sequence of tokens corresponding - * to the input stream. The initial token has the type - * @c YAML_STREAM_START_TOKEN while the ending token has the type - * @c YAML_STREAM_END_TOKEN. - * - * An application is responsible for freeing any buffers associated with the - * produced token object using the @c yaml_token_delete function. - * - * An application must not alternate the calls of yaml_parser_scan() with the - * calls of yaml_parser_parse() or yaml_parser_load(). Doing this will break - * the parser. - * - * @param[in,out] parser A parser object. - * @param[out] token An empty token object. - * - * @returns @c 1 if the function succeeded, @c 0 on error. - */ - -YAML_DECLARE(int) -yaml_parser_scan(yaml_parser_t *parser, yaml_token_t *token); - -/** - * Parse the input stream and produce the next parsing event. - * - * Call the function subsequently to produce a sequence of events corresponding - * to the input stream. The initial event has the type - * @c YAML_STREAM_START_EVENT while the ending event has the type - * @c YAML_STREAM_END_EVENT. - * - * An application is responsible for freeing any buffers associated with the - * produced event object using the yaml_event_delete() function. - * - * An application must not alternate the calls of yaml_parser_parse() with the - * calls of yaml_parser_scan() or yaml_parser_load(). Doing this will break the - * parser. - * - * @param[in,out] parser A parser object. - * @param[out] event An empty event object. - * - * @returns @c 1 if the function succeeded, @c 0 on error. - */ - -YAML_DECLARE(int) -yaml_parser_parse(yaml_parser_t *parser, yaml_event_t *event); - -/** - * Parse the input stream and produce the next YAML document. - * - * Call this function subsequently to produce a sequence of documents - * constituting the input stream. - * - * If the produced document has no root node, it means that the document - * end has been reached. - * - * An application is responsible for freeing any data associated with the - * produced document object using the yaml_document_delete() function. - * - * An application must not alternate the calls of yaml_parser_load() with the - * calls of yaml_parser_scan() or yaml_parser_parse(). Doing this will break - * the parser. - * - * @param[in,out] parser A parser object. - * @param[out] document An empty document object. - * - * @return @c 1 if the function succeeded, @c 0 on error. - */ - -YAML_DECLARE(int) -yaml_parser_load(yaml_parser_t *parser, yaml_document_t *document); - -/** @} */ - -/** - * @defgroup emitter Emitter Definitions - * @{ - */ - -/** - * The prototype of a write handler. - * - * The write handler is called when the emitter needs to flush the accumulated - * characters to the output. The handler should write @a size bytes of the - * @a buffer to the output. - * - * @param[in,out] data A pointer to an application data specified by - * yaml_emitter_set_output(). - * @param[in] buffer The buffer with bytes to be written. - * @param[in] size The size of the buffer. - * - * @returns On success, the handler should return @c 1. If the handler failed, - * the returned value should be @c 0. - */ - -typedef int yaml_write_handler_t(void *data, unsigned char *buffer, size_t size); - -/** The emitter states. */ -typedef enum yaml_emitter_state_e { - /** Expect STREAM-START. */ - YAML_EMIT_STREAM_START_STATE, - /** Expect the first DOCUMENT-START or STREAM-END. */ - YAML_EMIT_FIRST_DOCUMENT_START_STATE, - /** Expect DOCUMENT-START or STREAM-END. */ - YAML_EMIT_DOCUMENT_START_STATE, - /** Expect the content of a document. */ - YAML_EMIT_DOCUMENT_CONTENT_STATE, - /** Expect DOCUMENT-END. */ - YAML_EMIT_DOCUMENT_END_STATE, - /** Expect the first item of a flow sequence. */ - YAML_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE, - /** Expect an item of a flow sequence. */ - YAML_EMIT_FLOW_SEQUENCE_ITEM_STATE, - /** Expect the first key of a flow mapping. */ - YAML_EMIT_FLOW_MAPPING_FIRST_KEY_STATE, - /** Expect a key of a flow mapping. */ - YAML_EMIT_FLOW_MAPPING_KEY_STATE, - /** Expect a value for a simple key of a flow mapping. */ - YAML_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE, - /** Expect a value of a flow mapping. */ - YAML_EMIT_FLOW_MAPPING_VALUE_STATE, - /** Expect the first item of a block sequence. */ - YAML_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE, - /** Expect an item of a block sequence. */ - YAML_EMIT_BLOCK_SEQUENCE_ITEM_STATE, - /** Expect the first key of a block mapping. */ - YAML_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE, - /** Expect the key of a block mapping. */ - YAML_EMIT_BLOCK_MAPPING_KEY_STATE, - /** Expect a value for a simple key of a block mapping. */ - YAML_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE, - /** Expect a value of a block mapping. */ - YAML_EMIT_BLOCK_MAPPING_VALUE_STATE, - /** Expect nothing. */ - YAML_EMIT_END_STATE -} yaml_emitter_state_t; - -/** - * The emitter structure. - * - * All members are internal. Manage the structure using the @c yaml_emitter_ - * family of functions. - */ - -typedef struct yaml_emitter_s { - - /** - * @name Error handling - * @{ - */ - - /** Error type. */ - yaml_error_type_t error; - /** Error description. */ - const char *problem; - - /** - * @} - */ - - /** - * @name Writer stuff - * @{ - */ - - /** Write handler. */ - yaml_write_handler_t *write_handler; - - /** A pointer for passing to the white handler. */ - void *write_handler_data; - - /** Standard (string or file) output data. */ - union { - /** String output data. */ - struct { - /** The buffer pointer. */ - unsigned char *buffer; - /** The buffer size. */ - size_t size; - /** The number of written bytes. */ - size_t *size_written; - } string; - - /** File output data. */ - FILE *file; - } output; - - /** The working buffer. */ - struct { - /** The beginning of the buffer. */ - yaml_char_t *start; - /** The end of the buffer. */ - yaml_char_t *end; - /** The current position of the buffer. */ - yaml_char_t *pointer; - /** The last filled position of the buffer. */ - yaml_char_t *last; - } buffer; - - /** The raw buffer. */ - struct { - /** The beginning of the buffer. */ - unsigned char *start; - /** The end of the buffer. */ - unsigned char *end; - /** The current position of the buffer. */ - unsigned char *pointer; - /** The last filled position of the buffer. */ - unsigned char *last; - } raw_buffer; - - /** The stream encoding. */ - yaml_encoding_t encoding; - - /** - * @} - */ - - /** - * @name Emitter stuff - * @{ - */ - - /** If the output is in the canonical style? */ - int canonical; - /** The number of indentation spaces. */ - int best_indent; - /** The preferred width of the output lines. */ - int best_width; - /** Allow unescaped non-ASCII characters? */ - int unicode; - /** The preferred line break. */ - yaml_break_t line_break; - - /** The stack of states. */ - struct { - /** The beginning of the stack. */ - yaml_emitter_state_t *start; - /** The end of the stack. */ - yaml_emitter_state_t *end; - /** The top of the stack. */ - yaml_emitter_state_t *top; - } states; - - /** The current emitter state. */ - yaml_emitter_state_t state; - - /** The event queue. */ - struct { - /** The beginning of the event queue. */ - yaml_event_t *start; - /** The end of the event queue. */ - yaml_event_t *end; - /** The head of the event queue. */ - yaml_event_t *head; - /** The tail of the event queue. */ - yaml_event_t *tail; - } events; - - /** The stack of indentation levels. */ - struct { - /** The beginning of the stack. */ - int *start; - /** The end of the stack. */ - int *end; - /** The top of the stack. */ - int *top; - } indents; - - /** The list of tag directives. */ - struct { - /** The beginning of the list. */ - yaml_tag_directive_t *start; - /** The end of the list. */ - yaml_tag_directive_t *end; - /** The top of the list. */ - yaml_tag_directive_t *top; - } tag_directives; - - /** The current indentation level. */ - int indent; - - /** The current flow level. */ - int flow_level; - - /** Is it the document root context? */ - int root_context; - /** Is it a sequence context? */ - int sequence_context; - /** Is it a mapping context? */ - int mapping_context; - /** Is it a simple mapping key context? */ - int simple_key_context; - - /** The current line. */ - int line; - /** The current column. */ - int column; - /** If the last character was a whitespace? */ - int whitespace; - /** If the last character was an indentation character (' ', '-', '?', ':')? */ - int indention; - /** If an explicit document end is required? */ - int open_ended; - - /** Anchor analysis. */ - struct { - /** The anchor value. */ - yaml_char_t *anchor; - /** The anchor length. */ - size_t anchor_length; - /** Is it an alias? */ - int alias; - } anchor_data; - - /** Tag analysis. */ - struct { - /** The tag handle. */ - yaml_char_t *handle; - /** The tag handle length. */ - size_t handle_length; - /** The tag suffix. */ - yaml_char_t *suffix; - /** The tag suffix length. */ - size_t suffix_length; - } tag_data; - - /** Scalar analysis. */ - struct { - /** The scalar value. */ - yaml_char_t *value; - /** The scalar length. */ - size_t length; - /** Does the scalar contain line breaks? */ - int multiline; - /** Can the scalar be expessed in the flow plain style? */ - int flow_plain_allowed; - /** Can the scalar be expressed in the block plain style? */ - int block_plain_allowed; - /** Can the scalar be expressed in the single quoted style? */ - int single_quoted_allowed; - /** Can the scalar be expressed in the literal or folded styles? */ - int block_allowed; - /** The output style. */ - yaml_scalar_style_t style; - } scalar_data; - - /** - * @} - */ - - /** - * @name Dumper stuff - * @{ - */ - - /** If the stream was already opened? */ - int opened; - /** If the stream was already closed? */ - int closed; - - /** The information associated with the document nodes. */ - struct { - /** The number of references. */ - int references; - /** The anchor id. */ - int anchor; - /** If the node has been emitted? */ - int serialized; - } *anchors; - - /** The last assigned anchor id. */ - int last_anchor_id; - - /** The currently emitted document. */ - yaml_document_t *document; - - /** - * @} - */ - -} yaml_emitter_t; - -/** - * Initialize an emitter. - * - * This function creates a new emitter object. An application is responsible - * for destroying the object using the yaml_emitter_delete() function. - * - * @param[out] emitter An empty parser object. - * - * @returns @c 1 if the function succeeded, @c 0 on error. - */ - -YAML_DECLARE(int) -yaml_emitter_initialize(yaml_emitter_t *emitter); - -/** - * Destroy an emitter. - * - * @param[in,out] emitter An emitter object. - */ - -YAML_DECLARE(void) -yaml_emitter_delete(yaml_emitter_t *emitter); - -/** - * Set a string output. - * - * The emitter will write the output characters to the @a output buffer of the - * size @a size. The emitter will set @a size_written to the number of written - * bytes. If the buffer is smaller than required, the emitter produces the - * YAML_WRITE_ERROR error. - * - * @param[in,out] emitter An emitter object. - * @param[in] output An output buffer. - * @param[in] size The buffer size. - * @param[in] size_written The pointer to save the number of written - * bytes. - */ - -YAML_DECLARE(void) -yaml_emitter_set_output_string(yaml_emitter_t *emitter, - unsigned char *output, size_t size, size_t *size_written); - -/** - * Set a file output. - * - * @a file should be a file object open for writing. The application is - * responsible for closing the @a file. - * - * @param[in,out] emitter An emitter object. - * @param[in] file An open file. - */ - -YAML_DECLARE(void) -yaml_emitter_set_output_file(yaml_emitter_t *emitter, FILE *file); - -/** - * Set a generic output handler. - * - * @param[in,out] emitter An emitter object. - * @param[in] handler A write handler. - * @param[in] data Any application data for passing to the write - * handler. - */ - -YAML_DECLARE(void) -yaml_emitter_set_output(yaml_emitter_t *emitter, - yaml_write_handler_t *handler, void *data); - -/** - * Set the output encoding. - * - * @param[in,out] emitter An emitter object. - * @param[in] encoding The output encoding. - */ - -YAML_DECLARE(void) -yaml_emitter_set_encoding(yaml_emitter_t *emitter, yaml_encoding_t encoding); - -/** - * Set if the output should be in the "canonical" format as in the YAML - * specification. - * - * @param[in,out] emitter An emitter object. - * @param[in] canonical If the output is canonical. - */ - -YAML_DECLARE(void) -yaml_emitter_set_canonical(yaml_emitter_t *emitter, int canonical); - -/** - * Set the indentation increment. - * - * @param[in,out] emitter An emitter object. - * @param[in] indent The indentation increment (1 < . < 10). - */ - -YAML_DECLARE(void) -yaml_emitter_set_indent(yaml_emitter_t *emitter, int indent); - -/** - * Set the preferred line width. @c -1 means unlimited. - * - * @param[in,out] emitter An emitter object. - * @param[in] width The preferred line width. - */ - -YAML_DECLARE(void) -yaml_emitter_set_width(yaml_emitter_t *emitter, int width); - -/** - * Set if unescaped non-ASCII characters are allowed. - * - * @param[in,out] emitter An emitter object. - * @param[in] unicode If unescaped Unicode characters are allowed. - */ - -YAML_DECLARE(void) -yaml_emitter_set_unicode(yaml_emitter_t *emitter, int unicode); - -/** - * Set the preferred line break. - * - * @param[in,out] emitter An emitter object. - * @param[in] line_break The preferred line break. - */ - -YAML_DECLARE(void) -yaml_emitter_set_break(yaml_emitter_t *emitter, yaml_break_t line_break); - -/** - * Emit an event. - * - * The event object may be generated using the yaml_parser_parse() function. - * The emitter takes the responsibility for the event object and destroys its - * content after it is emitted. The event object is destroyed even if the - * function fails. - * - * @param[in,out] emitter An emitter object. - * @param[in,out] event An event object. - * - * @returns @c 1 if the function succeeded, @c 0 on error. - */ - -YAML_DECLARE(int) -yaml_emitter_emit(yaml_emitter_t *emitter, yaml_event_t *event); - -/** - * Start a YAML stream. - * - * This function should be used before yaml_emitter_dump() is called. - * - * @param[in,out] emitter An emitter object. - * - * @returns @c 1 if the function succeeded, @c 0 on error. - */ - -YAML_DECLARE(int) -yaml_emitter_open(yaml_emitter_t *emitter); - -/** - * Finish a YAML stream. - * - * This function should be used after yaml_emitter_dump() is called. - * - * @param[in,out] emitter An emitter object. - * - * @returns @c 1 if the function succeeded, @c 0 on error. - */ - -YAML_DECLARE(int) -yaml_emitter_close(yaml_emitter_t *emitter); - -/** - * Emit a YAML document. - * - * The documen object may be generated using the yaml_parser_load() function - * or the yaml_document_initialize() function. The emitter takes the - * responsibility for the document object and destoys its content after - * it is emitted. The document object is destroyedeven if the function fails. - * - * @param[in,out] emitter An emitter object. - * @param[in,out] document A document object. - * - * @returns @c 1 if the function succeeded, @c 0 on error. - */ - -YAML_DECLARE(int) -yaml_emitter_dump(yaml_emitter_t *emitter, yaml_document_t *document); - -/** - * Flush the accumulated characters to the output. - * - * @param[in,out] emitter An emitter object. - * - * @returns @c 1 if the function succeeded, @c 0 on error. - */ - -YAML_DECLARE(int) -yaml_emitter_flush(yaml_emitter_t *emitter); - -/** @} */ - -#ifdef __cplusplus -} -#endif - -#endif /* #ifndef YAML_H */ - diff --git a/ruby_2_2/ext/psych/yaml/yaml_private.h b/ruby_2_2/ext/psych/yaml/yaml_private.h deleted file mode 100644 index ce262d3086..0000000000 --- a/ruby_2_2/ext/psych/yaml/yaml_private.h +++ /dev/null @@ -1,662 +0,0 @@ -#ifdef RUBY_EXTCONF_H -#include RUBY_EXTCONF_H -#endif - -#if HAVE_CONFIG_H -#include <config.h> -#endif - -#include <yaml.h> - -#include <assert.h> -#include <limits.h> -#include <stddef.h> - -#ifndef _MSC_VER -#include <stdint.h> -#else -#ifdef _WIN64 -#define PTRDIFF_MAX _I64_MAX -#else -#define PTRDIFF_MAX INT_MAX -#endif -#endif - -/* - * Memory management. - */ - -YAML_DECLARE(void *) -yaml_malloc(size_t size); - -YAML_DECLARE(void *) -yaml_realloc(void *ptr, size_t size); - -YAML_DECLARE(void) -yaml_free(void *ptr); - -YAML_DECLARE(yaml_char_t *) -yaml_strdup(const yaml_char_t *); - -/* - * Reader: Ensure that the buffer contains at least `length` characters. - */ - -YAML_DECLARE(int) -yaml_parser_update_buffer(yaml_parser_t *parser, size_t length); - -/* - * Scanner: Ensure that the token stack contains at least one token ready. - */ - -YAML_DECLARE(int) -yaml_parser_fetch_more_tokens(yaml_parser_t *parser); - -/* - * The size of the input raw buffer. - */ - -#define INPUT_RAW_BUFFER_SIZE 16384 - -/* - * The size of the input buffer. - * - * It should be possible to decode the whole raw buffer. - */ - -#define INPUT_BUFFER_SIZE (INPUT_RAW_BUFFER_SIZE*3) - -/* - * The size of the output buffer. - */ - -#define OUTPUT_BUFFER_SIZE 16384 - -/* - * The size of the output raw buffer. - * - * It should be possible to encode the whole output buffer. - */ - -#define OUTPUT_RAW_BUFFER_SIZE (OUTPUT_BUFFER_SIZE*2+2) - -/* - * The size of other stacks and queues. - */ - -#define INITIAL_STACK_SIZE 16 -#define INITIAL_QUEUE_SIZE 16 -#define INITIAL_STRING_SIZE 16 - -/* - * Buffer management. - */ - -#define BUFFER_INIT(context,buffer,size) \ - (((buffer).start = yaml_malloc(size)) ? \ - ((buffer).last = (buffer).pointer = (buffer).start, \ - (buffer).end = (buffer).start+(size), \ - 1) : \ - ((context)->error = YAML_MEMORY_ERROR, \ - 0)) - -#define BUFFER_DEL(context,buffer) \ - (yaml_free((buffer).start), \ - (buffer).start = (buffer).pointer = (buffer).end = 0) - -/* - * String management. - */ - -typedef struct { - yaml_char_t *start; - yaml_char_t *end; - yaml_char_t *pointer; -} yaml_string_t; - -YAML_DECLARE(int) -yaml_string_extend(yaml_char_t **start, - yaml_char_t **pointer, yaml_char_t **end); - -YAML_DECLARE(int) -yaml_string_join( - yaml_char_t **a_start, yaml_char_t **a_pointer, yaml_char_t **a_end, - yaml_char_t **b_start, yaml_char_t **b_pointer, yaml_char_t **b_end); - -#define NULL_STRING { NULL, NULL, NULL } - -#define STRING(string,length) { (string), (string)+(length), (string) } - -#define STRING_ASSIGN(value,string,length) \ - ((value).start = (string), \ - (value).end = (string)+(length), \ - (value).pointer = (string)) - -#define STRING_INIT(context,string,size) \ - (((string).start = yaml_malloc(size)) ? \ - ((string).pointer = (string).start, \ - (string).end = (string).start+(size), \ - memset((string).start, 0, (size)), \ - 1) : \ - ((context)->error = YAML_MEMORY_ERROR, \ - 0)) - -#define STRING_DEL(context,string) \ - (yaml_free((string).start), \ - (string).start = (string).pointer = (string).end = 0) - -#define STRING_EXTEND(context,string) \ - ((((string).pointer+5 < (string).end) \ - || yaml_string_extend(&(string).start, \ - &(string).pointer, &(string).end)) ? \ - 1 : \ - ((context)->error = YAML_MEMORY_ERROR, \ - 0)) - -#define CLEAR(context,string) \ - ((string).pointer = (string).start, \ - memset((string).start, 0, (string).end-(string).start)) - -#define JOIN(context,string_a,string_b) \ - ((yaml_string_join(&(string_a).start, &(string_a).pointer, \ - &(string_a).end, &(string_b).start, \ - &(string_b).pointer, &(string_b).end)) ? \ - ((string_b).pointer = (string_b).start, \ - 1) : \ - ((context)->error = YAML_MEMORY_ERROR, \ - 0)) - -/* - * String check operations. - */ - -/* - * Check the octet at the specified position. - */ - -#define CHECK_AT(string,octet,offset) \ - ((string).pointer[offset] == (yaml_char_t)(octet)) - -/* - * Check the current octet in the buffer. - */ - -#define CHECK(string,octet) CHECK_AT((string),(octet),0) - -/* - * Check if the character at the specified position is an alphabetical - * character, a digit, '_', or '-'. - */ - -#define IS_ALPHA_AT(string,offset) \ - (((string).pointer[offset] >= (yaml_char_t) '0' && \ - (string).pointer[offset] <= (yaml_char_t) '9') || \ - ((string).pointer[offset] >= (yaml_char_t) 'A' && \ - (string).pointer[offset] <= (yaml_char_t) 'Z') || \ - ((string).pointer[offset] >= (yaml_char_t) 'a' && \ - (string).pointer[offset] <= (yaml_char_t) 'z') || \ - (string).pointer[offset] == '_' || \ - (string).pointer[offset] == '-') - -#define IS_ALPHA(string) IS_ALPHA_AT((string),0) - -/* - * Check if the character at the specified position is a digit. - */ - -#define IS_DIGIT_AT(string,offset) \ - (((string).pointer[offset] >= (yaml_char_t) '0' && \ - (string).pointer[offset] <= (yaml_char_t) '9')) - -#define IS_DIGIT(string) IS_DIGIT_AT((string),0) - -/* - * Get the value of a digit. - */ - -#define AS_DIGIT_AT(string,offset) \ - ((string).pointer[offset] - (yaml_char_t) '0') - -#define AS_DIGIT(string) AS_DIGIT_AT((string),0) - -/* - * Check if the character at the specified position is a hex-digit. - */ - -#define IS_HEX_AT(string,offset) \ - (((string).pointer[offset] >= (yaml_char_t) '0' && \ - (string).pointer[offset] <= (yaml_char_t) '9') || \ - ((string).pointer[offset] >= (yaml_char_t) 'A' && \ - (string).pointer[offset] <= (yaml_char_t) 'F') || \ - ((string).pointer[offset] >= (yaml_char_t) 'a' && \ - (string).pointer[offset] <= (yaml_char_t) 'f')) - -#define IS_HEX(string) IS_HEX_AT((string),0) - -/* - * Get the value of a hex-digit. - */ - -#define AS_HEX_AT(string,offset) \ - (((string).pointer[offset] >= (yaml_char_t) 'A' && \ - (string).pointer[offset] <= (yaml_char_t) 'F') ? \ - ((string).pointer[offset] - (yaml_char_t) 'A' + 10) : \ - ((string).pointer[offset] >= (yaml_char_t) 'a' && \ - (string).pointer[offset] <= (yaml_char_t) 'f') ? \ - ((string).pointer[offset] - (yaml_char_t) 'a' + 10) : \ - ((string).pointer[offset] - (yaml_char_t) '0')) - -#define AS_HEX(string) AS_HEX_AT((string),0) - -/* - * Check if the character is ASCII. - */ - -#define IS_ASCII_AT(string,offset) \ - ((string).pointer[offset] <= (yaml_char_t) '\x7F') - -#define IS_ASCII(string) IS_ASCII_AT((string),0) - -/* - * Check if the character can be printed unescaped. - */ - -#define IS_PRINTABLE_AT(string,offset) \ - (((string).pointer[offset] == 0x0A) /* . == #x0A */ \ - || ((string).pointer[offset] >= 0x20 /* #x20 <= . <= #x7E */ \ - && (string).pointer[offset] <= 0x7E) \ - || ((string).pointer[offset] == 0xC2 /* #0xA0 <= . <= #xD7FF */ \ - && (string).pointer[offset+1] >= 0xA0) \ - || ((string).pointer[offset] > 0xC2 \ - && (string).pointer[offset] < 0xED) \ - || ((string).pointer[offset] == 0xED \ - && (string).pointer[offset+1] < 0xA0) \ - || ((string).pointer[offset] == 0xEE) \ - || ((string).pointer[offset] == 0xEF /* #xE000 <= . <= #xFFFD */ \ - && !((string).pointer[offset+1] == 0xBB /* && . != #xFEFF */ \ - && (string).pointer[offset+2] == 0xBF) \ - && !((string).pointer[offset+1] == 0xBF \ - && ((string).pointer[offset+2] == 0xBE \ - || (string).pointer[offset+2] == 0xBF)))) - -#define IS_PRINTABLE(string) IS_PRINTABLE_AT((string),0) - -/* - * Check if the character at the specified position is NUL. - */ - -#define IS_Z_AT(string,offset) CHECK_AT((string),'\0',(offset)) - -#define IS_Z(string) IS_Z_AT((string),0) - -/* - * Check if the character at the specified position is BOM. - */ - -#define IS_BOM_AT(string,offset) \ - (CHECK_AT((string),'\xEF',(offset)) \ - && CHECK_AT((string),'\xBB',(offset)+1) \ - && CHECK_AT((string),'\xBF',(offset)+2)) /* BOM (#xFEFF) */ - -#define IS_BOM(string) IS_BOM_AT(string,0) - -/* - * Check if the character at the specified position is space. - */ - -#define IS_SPACE_AT(string,offset) CHECK_AT((string),' ',(offset)) - -#define IS_SPACE(string) IS_SPACE_AT((string),0) - -/* - * Check if the character at the specified position is tab. - */ - -#define IS_TAB_AT(string,offset) CHECK_AT((string),'\t',(offset)) - -#define IS_TAB(string) IS_TAB_AT((string),0) - -/* - * Check if the character at the specified position is blank (space or tab). - */ - -#define IS_BLANK_AT(string,offset) \ - (IS_SPACE_AT((string),(offset)) || IS_TAB_AT((string),(offset))) - -#define IS_BLANK(string) IS_BLANK_AT((string),0) - -/* - * Check if the character at the specified position is a line break. - */ - -#define IS_BREAK_AT(string,offset) \ - (CHECK_AT((string),'\r',(offset)) /* CR (#xD)*/ \ - || CHECK_AT((string),'\n',(offset)) /* LF (#xA) */ \ - || (CHECK_AT((string),'\xC2',(offset)) \ - && CHECK_AT((string),'\x85',(offset)+1)) /* NEL (#x85) */ \ - || (CHECK_AT((string),'\xE2',(offset)) \ - && CHECK_AT((string),'\x80',(offset)+1) \ - && CHECK_AT((string),'\xA8',(offset)+2)) /* LS (#x2028) */ \ - || (CHECK_AT((string),'\xE2',(offset)) \ - && CHECK_AT((string),'\x80',(offset)+1) \ - && CHECK_AT((string),'\xA9',(offset)+2))) /* PS (#x2029) */ - -#define IS_BREAK(string) IS_BREAK_AT((string),0) - -#define IS_CRLF_AT(string,offset) \ - (CHECK_AT((string),'\r',(offset)) && CHECK_AT((string),'\n',(offset)+1)) - -#define IS_CRLF(string) IS_CRLF_AT((string),0) - -/* - * Check if the character is a line break or NUL. - */ - -#define IS_BREAKZ_AT(string,offset) \ - (IS_BREAK_AT((string),(offset)) || IS_Z_AT((string),(offset))) - -#define IS_BREAKZ(string) IS_BREAKZ_AT((string),0) - -/* - * Check if the character is a line break, space, or NUL. - */ - -#define IS_SPACEZ_AT(string,offset) \ - (IS_SPACE_AT((string),(offset)) || IS_BREAKZ_AT((string),(offset))) - -#define IS_SPACEZ(string) IS_SPACEZ_AT((string),0) - -/* - * Check if the character is a line break, space, tab, or NUL. - */ - -#define IS_BLANKZ_AT(string,offset) \ - (IS_BLANK_AT((string),(offset)) || IS_BREAKZ_AT((string),(offset))) - -#define IS_BLANKZ(string) IS_BLANKZ_AT((string),0) - -/* - * Determine the width of the character. - */ - -#define WIDTH_AT(string,offset) \ - (((string).pointer[offset] & 0x80) == 0x00 ? 1 : \ - ((string).pointer[offset] & 0xE0) == 0xC0 ? 2 : \ - ((string).pointer[offset] & 0xF0) == 0xE0 ? 3 : \ - ((string).pointer[offset] & 0xF8) == 0xF0 ? 4 : 0) - -#define WIDTH(string) WIDTH_AT((string),0) - -/* - * Move the string pointer to the next character. - */ - -#define MOVE(string) ((string).pointer += WIDTH((string))) - -/* - * Copy a character and move the pointers of both strings. - */ - -#define COPY(string_a,string_b) \ - ((*(string_b).pointer & 0x80) == 0x00 ? \ - (*((string_a).pointer++) = *((string_b).pointer++)) : \ - (*(string_b).pointer & 0xE0) == 0xC0 ? \ - (*((string_a).pointer++) = *((string_b).pointer++), \ - *((string_a).pointer++) = *((string_b).pointer++)) : \ - (*(string_b).pointer & 0xF0) == 0xE0 ? \ - (*((string_a).pointer++) = *((string_b).pointer++), \ - *((string_a).pointer++) = *((string_b).pointer++), \ - *((string_a).pointer++) = *((string_b).pointer++)) : \ - (*(string_b).pointer & 0xF8) == 0xF0 ? \ - (*((string_a).pointer++) = *((string_b).pointer++), \ - *((string_a).pointer++) = *((string_b).pointer++), \ - *((string_a).pointer++) = *((string_b).pointer++), \ - *((string_a).pointer++) = *((string_b).pointer++)) : 0) - -/* - * Stack and queue management. - */ - -YAML_DECLARE(int) -yaml_stack_extend(void **start, void **top, void **end); - -YAML_DECLARE(int) -yaml_queue_extend(void **start, void **head, void **tail, void **end); - -#define STACK_INIT(context,stack,size) \ - (((stack).start = yaml_malloc((size)*sizeof(*(stack).start))) ? \ - ((stack).top = (stack).start, \ - (stack).end = (stack).start+(size), \ - 1) : \ - ((context)->error = YAML_MEMORY_ERROR, \ - 0)) - -#define STACK_DEL(context,stack) \ - (yaml_free((stack).start), \ - (stack).start = (stack).top = (stack).end = 0) - -#define STACK_EMPTY(context,stack) \ - ((stack).start == (stack).top) - -#define STACK_LIMIT(context,stack,size) \ - ((stack).top - (stack).start < (size) ? \ - 1 : \ - ((context)->error = YAML_MEMORY_ERROR, \ - 0)) - -#define PUSH(context,stack,value) \ - (((stack).top != (stack).end \ - || yaml_stack_extend((void **)&(stack).start, \ - (void **)&(stack).top, (void **)&(stack).end)) ? \ - (*((stack).top++) = value, \ - 1) : \ - ((context)->error = YAML_MEMORY_ERROR, \ - 0)) - -#define POP(context,stack) \ - (*(--(stack).top)) - -#define QUEUE_INIT(context,queue,size) \ - (((queue).start = yaml_malloc((size)*sizeof(*(queue).start))) ? \ - ((queue).head = (queue).tail = (queue).start, \ - (queue).end = (queue).start+(size), \ - 1) : \ - ((context)->error = YAML_MEMORY_ERROR, \ - 0)) - -#define QUEUE_DEL(context,queue) \ - (yaml_free((queue).start), \ - (queue).start = (queue).head = (queue).tail = (queue).end = 0) - -#define QUEUE_EMPTY(context,queue) \ - ((queue).head == (queue).tail) - -#define ENQUEUE(context,queue,value) \ - (((queue).tail != (queue).end \ - || yaml_queue_extend((void **)&(queue).start, (void **)&(queue).head, \ - (void **)&(queue).tail, (void **)&(queue).end)) ? \ - (*((queue).tail++) = value, \ - 1) : \ - ((context)->error = YAML_MEMORY_ERROR, \ - 0)) - -#define DEQUEUE(context,queue) \ - (*((queue).head++)) - -#define QUEUE_INSERT(context,queue,index,value) \ - (((queue).tail != (queue).end \ - || yaml_queue_extend((void **)&(queue).start, (void **)&(queue).head, \ - (void **)&(queue).tail, (void **)&(queue).end)) ? \ - (memmove((queue).head+(index)+1,(queue).head+(index), \ - ((queue).tail-(queue).head-(index))*sizeof(*(queue).start)), \ - *((queue).head+(index)) = value, \ - (queue).tail++, \ - 1) : \ - ((context)->error = YAML_MEMORY_ERROR, \ - 0)) - -/* - * Token initializers. - */ - -#define TOKEN_INIT(token,token_type,token_start_mark,token_end_mark) \ - (memset(&(token), 0, sizeof(yaml_token_t)), \ - (token).type = (token_type), \ - (token).start_mark = (token_start_mark), \ - (token).end_mark = (token_end_mark)) - -#define STREAM_START_TOKEN_INIT(token,token_encoding,start_mark,end_mark) \ - (TOKEN_INIT((token),YAML_STREAM_START_TOKEN,(start_mark),(end_mark)), \ - (token).data.stream_start.encoding = (token_encoding)) - -#define STREAM_END_TOKEN_INIT(token,start_mark,end_mark) \ - (TOKEN_INIT((token),YAML_STREAM_END_TOKEN,(start_mark),(end_mark))) - -#define ALIAS_TOKEN_INIT(token,token_value,start_mark,end_mark) \ - (TOKEN_INIT((token),YAML_ALIAS_TOKEN,(start_mark),(end_mark)), \ - (token).data.alias.value = (token_value)) - -#define ANCHOR_TOKEN_INIT(token,token_value,start_mark,end_mark) \ - (TOKEN_INIT((token),YAML_ANCHOR_TOKEN,(start_mark),(end_mark)), \ - (token).data.anchor.value = (token_value)) - -#define TAG_TOKEN_INIT(token,token_handle,token_suffix,start_mark,end_mark) \ - (TOKEN_INIT((token),YAML_TAG_TOKEN,(start_mark),(end_mark)), \ - (token).data.tag.handle = (token_handle), \ - (token).data.tag.suffix = (token_suffix)) - -#define SCALAR_TOKEN_INIT(token,token_value,token_length,token_style,start_mark,end_mark) \ - (TOKEN_INIT((token),YAML_SCALAR_TOKEN,(start_mark),(end_mark)), \ - (token).data.scalar.value = (token_value), \ - (token).data.scalar.length = (token_length), \ - (token).data.scalar.style = (token_style)) - -#define VERSION_DIRECTIVE_TOKEN_INIT(token,token_major,token_minor,start_mark,end_mark) \ - (TOKEN_INIT((token),YAML_VERSION_DIRECTIVE_TOKEN,(start_mark),(end_mark)), \ - (token).data.version_directive.major = (token_major), \ - (token).data.version_directive.minor = (token_minor)) - -#define TAG_DIRECTIVE_TOKEN_INIT(token,token_handle,token_prefix,start_mark,end_mark) \ - (TOKEN_INIT((token),YAML_TAG_DIRECTIVE_TOKEN,(start_mark),(end_mark)), \ - (token).data.tag_directive.handle = (token_handle), \ - (token).data.tag_directive.prefix = (token_prefix)) - -/* - * Event initializers. - */ - -#define EVENT_INIT(event,event_type,event_start_mark,event_end_mark) \ - (memset(&(event), 0, sizeof(yaml_event_t)), \ - (event).type = (event_type), \ - (event).start_mark = (event_start_mark), \ - (event).end_mark = (event_end_mark)) - -#define STREAM_START_EVENT_INIT(event,event_encoding,start_mark,end_mark) \ - (EVENT_INIT((event),YAML_STREAM_START_EVENT,(start_mark),(end_mark)), \ - (event).data.stream_start.encoding = (event_encoding)) - -#define STREAM_END_EVENT_INIT(event,start_mark,end_mark) \ - (EVENT_INIT((event),YAML_STREAM_END_EVENT,(start_mark),(end_mark))) - -#define DOCUMENT_START_EVENT_INIT(event,event_version_directive, \ - event_tag_directives_start,event_tag_directives_end,event_implicit,start_mark,end_mark) \ - (EVENT_INIT((event),YAML_DOCUMENT_START_EVENT,(start_mark),(end_mark)), \ - (event).data.document_start.version_directive = (event_version_directive), \ - (event).data.document_start.tag_directives.start = (event_tag_directives_start), \ - (event).data.document_start.tag_directives.end = (event_tag_directives_end), \ - (event).data.document_start.implicit = (event_implicit)) - -#define DOCUMENT_END_EVENT_INIT(event,event_implicit,start_mark,end_mark) \ - (EVENT_INIT((event),YAML_DOCUMENT_END_EVENT,(start_mark),(end_mark)), \ - (event).data.document_end.implicit = (event_implicit)) - -#define ALIAS_EVENT_INIT(event,event_anchor,start_mark,end_mark) \ - (EVENT_INIT((event),YAML_ALIAS_EVENT,(start_mark),(end_mark)), \ - (event).data.alias.anchor = (event_anchor)) - -#define SCALAR_EVENT_INIT(event,event_anchor,event_tag,event_value,event_length, \ - event_plain_implicit, event_quoted_implicit,event_style,start_mark,end_mark) \ - (EVENT_INIT((event),YAML_SCALAR_EVENT,(start_mark),(end_mark)), \ - (event).data.scalar.anchor = (event_anchor), \ - (event).data.scalar.tag = (event_tag), \ - (event).data.scalar.value = (event_value), \ - (event).data.scalar.length = (event_length), \ - (event).data.scalar.plain_implicit = (event_plain_implicit), \ - (event).data.scalar.quoted_implicit = (event_quoted_implicit), \ - (event).data.scalar.style = (event_style)) - -#define SEQUENCE_START_EVENT_INIT(event,event_anchor,event_tag, \ - event_implicit,event_style,start_mark,end_mark) \ - (EVENT_INIT((event),YAML_SEQUENCE_START_EVENT,(start_mark),(end_mark)), \ - (event).data.sequence_start.anchor = (event_anchor), \ - (event).data.sequence_start.tag = (event_tag), \ - (event).data.sequence_start.implicit = (event_implicit), \ - (event).data.sequence_start.style = (event_style)) - -#define SEQUENCE_END_EVENT_INIT(event,start_mark,end_mark) \ - (EVENT_INIT((event),YAML_SEQUENCE_END_EVENT,(start_mark),(end_mark))) - -#define MAPPING_START_EVENT_INIT(event,event_anchor,event_tag, \ - event_implicit,event_style,start_mark,end_mark) \ - (EVENT_INIT((event),YAML_MAPPING_START_EVENT,(start_mark),(end_mark)), \ - (event).data.mapping_start.anchor = (event_anchor), \ - (event).data.mapping_start.tag = (event_tag), \ - (event).data.mapping_start.implicit = (event_implicit), \ - (event).data.mapping_start.style = (event_style)) - -#define MAPPING_END_EVENT_INIT(event,start_mark,end_mark) \ - (EVENT_INIT((event),YAML_MAPPING_END_EVENT,(start_mark),(end_mark))) - -/* - * Document initializer. - */ - -#define DOCUMENT_INIT(document,document_nodes_start,document_nodes_end, \ - document_version_directive,document_tag_directives_start, \ - document_tag_directives_end,document_start_implicit, \ - document_end_implicit,document_start_mark,document_end_mark) \ - (memset(&(document), 0, sizeof(yaml_document_t)), \ - (document).nodes.start = (document_nodes_start), \ - (document).nodes.end = (document_nodes_end), \ - (document).nodes.top = (document_nodes_start), \ - (document).version_directive = (document_version_directive), \ - (document).tag_directives.start = (document_tag_directives_start), \ - (document).tag_directives.end = (document_tag_directives_end), \ - (document).start_implicit = (document_start_implicit), \ - (document).end_implicit = (document_end_implicit), \ - (document).start_mark = (document_start_mark), \ - (document).end_mark = (document_end_mark)) - -/* - * Node initializers. - */ - -#define NODE_INIT(node,node_type,node_tag,node_start_mark,node_end_mark) \ - (memset(&(node), 0, sizeof(yaml_node_t)), \ - (node).type = (node_type), \ - (node).tag = (node_tag), \ - (node).start_mark = (node_start_mark), \ - (node).end_mark = (node_end_mark)) - -#define SCALAR_NODE_INIT(node,node_tag,node_value,node_length, \ - node_style,start_mark,end_mark) \ - (NODE_INIT((node),YAML_SCALAR_NODE,(node_tag),(start_mark),(end_mark)), \ - (node).data.scalar.value = (node_value), \ - (node).data.scalar.length = (node_length), \ - (node).data.scalar.style = (node_style)) - -#define SEQUENCE_NODE_INIT(node,node_tag,node_items_start,node_items_end, \ - node_style,start_mark,end_mark) \ - (NODE_INIT((node),YAML_SEQUENCE_NODE,(node_tag),(start_mark),(end_mark)), \ - (node).data.sequence.items.start = (node_items_start), \ - (node).data.sequence.items.end = (node_items_end), \ - (node).data.sequence.items.top = (node_items_start), \ - (node).data.sequence.style = (node_style)) - -#define MAPPING_NODE_INIT(node,node_tag,node_pairs_start,node_pairs_end, \ - node_style,start_mark,end_mark) \ - (NODE_INIT((node),YAML_MAPPING_NODE,(node_tag),(start_mark),(end_mark)), \ - (node).data.mapping.pairs.start = (node_pairs_start), \ - (node).data.mapping.pairs.end = (node_pairs_end), \ - (node).data.mapping.pairs.top = (node_pairs_start), \ - (node).data.mapping.style = (node_style)) |