X-Git-Url: https://review.fuel-infra.org/gitweb?a=blobdiff_plain;f=lib%2Fmcollective%2Fvendor%2Fjson%2Flib%2Fjson%2Fpure%2Fgenerator.rb;fp=lib%2Fmcollective%2Fvendor%2Fjson%2Flib%2Fjson%2Fpure%2Fgenerator.rb;h=7c9b2adbd0a09118aeebfdc4897cede8308a1893;hb=b87d2f4e68281062df1913440ca5753ae63314a9;hp=0000000000000000000000000000000000000000;hpb=ab0ea530b8ac956091f17b104ab2311336cfc250;p=packages%2Fprecise%2Fmcollective.git

diff --git a/lib/mcollective/vendor/json/lib/json/pure/generator.rb b/lib/mcollective/vendor/json/lib/json/pure/generator.rb
new file mode 100644
index 0000000..7c9b2ad
--- /dev/null
+++ b/lib/mcollective/vendor/json/lib/json/pure/generator.rb
@@ -0,0 +1,457 @@
+module JSON
+  MAP = {
+    "\x0" => '\u0000',
+    "\x1" => '\u0001',
+    "\x2" => '\u0002',
+    "\x3" => '\u0003',
+    "\x4" => '\u0004',
+    "\x5" => '\u0005',
+    "\x6" => '\u0006',
+    "\x7" => '\u0007',
+    "\b"  =>  '\b',
+    "\t"  =>  '\t',
+    "\n"  =>  '\n',
+    "\xb" => '\u000b',
+    "\f"  =>  '\f',
+    "\r"  =>  '\r',
+    "\xe" => '\u000e',
+    "\xf" => '\u000f',
+    "\x10" => '\u0010',
+    "\x11" => '\u0011',
+    "\x12" => '\u0012',
+    "\x13" => '\u0013',
+    "\x14" => '\u0014',
+    "\x15" => '\u0015',
+    "\x16" => '\u0016',
+    "\x17" => '\u0017',
+    "\x18" => '\u0018',
+    "\x19" => '\u0019',
+    "\x1a" => '\u001a',
+    "\x1b" => '\u001b',
+    "\x1c" => '\u001c',
+    "\x1d" => '\u001d',
+    "\x1e" => '\u001e',
+    "\x1f" => '\u001f',
+    '"'   =>  '\"',
+    '\\'  =>  '\\\\',
+  } # :nodoc:
+
+  # Convert a UTF8 encoded Ruby string _string_ to a JSON string, encoded with
+  # UTF16 big endian characters as \u????, and return it.
+  if defined?(::Encoding)
+    def utf8_to_json(string) # :nodoc:
+      string = string.dup
+      string << '' # XXX workaround: avoid buffer sharing
+      string.force_encoding(::Encoding::ASCII_8BIT)
+      string.gsub!(/["\\\x0-\x1f]/) { MAP[$&] }
+      string.force_encoding(::Encoding::UTF_8)
+      string
+    end
+
+    def utf8_to_json_ascii(string) # :nodoc:
+      string = string.dup
+      string << '' # XXX workaround: avoid buffer sharing
+      string.force_encoding(::Encoding::ASCII_8BIT)
+      string.gsub!(/["\\\x0-\x1f]/) { MAP[$&] }
+      string.gsub!(/(
+                      (?:
+                        [\xc2-\xdf][\x80-\xbf]    |
+                        [\xe0-\xef][\x80-\xbf]{2} |
+                        [\xf0-\xf4][\x80-\xbf]{3}
+                      )+ |
+                      [\x80-\xc1\xf5-\xff]       # invalid
+                    )/nx) { |c|
+                      c.size == 1 and raise GeneratorError, "invalid utf8 byte: '#{c}'"
+                      s = JSON.iconv('utf-16be', 'utf-8', c).unpack('H*')[0]
+                      s.gsub!(/.{4}/n, '\\\\u\&')
+                    }
+      string.force_encoding(::Encoding::UTF_8)
+      string
+    rescue => e
+      raise GeneratorError, "Caught #{e.class}: #{e}"
+    end
+  else
+    def utf8_to_json(string) # :nodoc:
+      string.gsub(/["\\\x0-\x1f]/) { MAP[$&] }
+    end
+
+    def utf8_to_json_ascii(string) # :nodoc:
+      string = string.gsub(/["\\\x0-\x1f]/) { MAP[$&] }
+      string.gsub!(/(
+                      (?:
+                        [\xc2-\xdf][\x80-\xbf]    |
+                        [\xe0-\xef][\x80-\xbf]{2} |
+                        [\xf0-\xf4][\x80-\xbf]{3}
+                      )+ |
+                      [\x80-\xc1\xf5-\xff]       # invalid
+                    )/nx) { |c|
+        c.size == 1 and raise GeneratorError, "invalid utf8 byte: '#{c}'"
+        s = JSON.iconv('utf-16be', 'utf-8', c).unpack('H*')[0]
+        s.gsub!(/.{4}/n, '\\\\u\&')
+      }
+      string
+    rescue => e
+      raise GeneratorError, "Caught #{e.class}: #{e}"
+    end
+  end
+  module_function :utf8_to_json, :utf8_to_json_ascii
+
+  module Pure
+    module Generator
+      # This class is used to create State instances, that are use to hold data
+      # while generating a JSON text from a Ruby data structure.
+      class State
+        # Creates a State object from _opts_, which ought to be Hash to create
+        # a new State instance configured by _opts_, something else to create
+        # an unconfigured instance. If _opts_ is a State object, it is just
+        # returned.
+        def self.from_state(opts)
+          case
+          when self === opts
+            opts
+          when opts.respond_to?(:to_hash)
+            new(opts.to_hash)
+          when opts.respond_to?(:to_h)
+            new(opts.to_h)
+          else
+            SAFE_STATE_PROTOTYPE.dup
+          end
+        end
+
+        # Instantiates a new State object, configured by _opts_.
+        #
+        # _opts_ can have the following keys:
+        #
+        # * *indent*: a string used to indent levels (default: ''),
+        # * *space*: a string that is put after, a : or , delimiter (default: ''),
+        # * *space_before*: a string that is put before a : pair delimiter (default: ''),
+        # * *object_nl*: a string that is put at the end of a JSON object (default: ''),
+        # * *array_nl*: a string that is put at the end of a JSON array (default: ''),
+        # * *check_circular*: is deprecated now, use the :max_nesting option instead,
+        # * *max_nesting*: sets the maximum level of data structure nesting in
+        #   the generated JSON, max_nesting = 0 if no maximum should be checked.
+        # * *allow_nan*: true if NaN, Infinity, and -Infinity should be
+        #   generated, otherwise an exception is thrown, if these values are
+        #   encountered. This options defaults to false.
+        # * *quirks_mode*: Enables quirks_mode for parser, that is for example
+        #   generating single JSON values instead of documents is possible.
+        def initialize(opts = {})
+          @indent         = ''
+          @space          = ''
+          @space_before   = ''
+          @object_nl      = ''
+          @array_nl       = ''
+          @allow_nan      = false
+          @ascii_only     = false
+          @quirks_mode    = false
+          configure opts
+        end
+
+        # This string is used to indent levels in the JSON text.
+        attr_accessor :indent
+
+        # This string is used to insert a space between the tokens in a JSON
+        # string.
+        attr_accessor :space
+
+        # This string is used to insert a space before the ':' in JSON objects.
+        attr_accessor :space_before
+
+        # This string is put at the end of a line that holds a JSON object (or
+        # Hash).
+        attr_accessor :object_nl
+
+        # This string is put at the end of a line that holds a JSON array.
+        attr_accessor :array_nl
+
+        # This integer returns the maximum level of data structure nesting in
+        # the generated JSON, max_nesting = 0 if no maximum is checked.
+        attr_accessor :max_nesting
+
+        # If this attribute is set to true, quirks mode is enabled, otherwise
+        # it's disabled.
+        attr_accessor :quirks_mode
+
+        # This integer returns the current depth data structure nesting in the
+        # generated JSON.
+        attr_accessor :depth
+
+        def check_max_nesting # :nodoc:
+          return if @max_nesting.zero?
+          current_nesting = depth + 1
+          current_nesting > @max_nesting and
+            raise NestingError, "nesting of #{current_nesting} is too deep"
+        end
+
+        # Returns true, if circular data structures are checked,
+        # otherwise returns false.
+        def check_circular?
+          !@max_nesting.zero?
+        end
+
+        # Returns true if NaN, Infinity, and -Infinity should be considered as
+        # valid JSON and output.
+        def allow_nan?
+          @allow_nan
+        end
+
+        # Returns true, if only ASCII characters should be generated. Otherwise
+        # returns false.
+        def ascii_only?
+          @ascii_only
+        end
+
+        # Returns true, if quirks mode is enabled. Otherwise returns false.
+        def quirks_mode?
+          @quirks_mode
+        end
+
+        # Configure this State instance with the Hash _opts_, and return
+        # itself.
+        def configure(opts)
+          @indent         = opts[:indent] if opts.key?(:indent)
+          @space          = opts[:space] if opts.key?(:space)
+          @space_before   = opts[:space_before] if opts.key?(:space_before)
+          @object_nl      = opts[:object_nl] if opts.key?(:object_nl)
+          @array_nl       = opts[:array_nl] if opts.key?(:array_nl)
+          @allow_nan      = !!opts[:allow_nan] if opts.key?(:allow_nan)
+          @ascii_only     = opts[:ascii_only] if opts.key?(:ascii_only)
+          @depth          = opts[:depth] || 0
+          @quirks_mode    = opts[:quirks_mode] if opts.key?(:quirks_mode)
+          if !opts.key?(:max_nesting) # defaults to 19
+            @max_nesting = 19
+          elsif opts[:max_nesting]
+            @max_nesting = opts[:max_nesting]
+          else
+            @max_nesting = 0
+          end
+          self
+        end
+        alias merge configure
+
+        # Returns the configuration instance variables as a hash, that can be
+        # passed to the configure method.
+        def to_h
+          result = {}
+          for iv in %w[indent space space_before object_nl array_nl allow_nan max_nesting ascii_only quirks_mode depth]
+            result[iv.intern] = instance_variable_get("@#{iv}")
+          end
+          result
+        end
+
+        # Generates a valid JSON document from object +obj+ and returns the
+        # result. If no valid JSON document can be created this method raises a
+        # GeneratorError exception.
+        def generate(obj)
+          result = obj.to_json(self)
+          if !@quirks_mode && result !~ /\A\s*(?:\[.*\]|\{.*\})\s*\Z/m
+            raise GeneratorError, "only generation of JSON objects or arrays allowed"
+          end
+          result
+        end
+
+        # Return the value returned by method +name+.
+        def [](name)
+          __send__ name
+        end
+      end
+
+      module GeneratorMethods
+        module Object
+          # Converts this object to a string (calling #to_s), converts
+          # it to a JSON string, and returns the result. This is a fallback, if no
+          # special method #to_json was defined for some object.
+          def to_json(*) to_s.to_json end
+        end
+
+        module Hash
+          # Returns a JSON string containing a JSON object, that is unparsed from
+          # this Hash instance.
+          # _state_ is a JSON::State object, that can also be used to configure the
+          # produced JSON string output further.
+          # _depth_ is used to find out nesting depth, to indent accordingly.
+          def to_json(state = nil, *)
+            state = State.from_state(state)
+            state.check_max_nesting
+            json_transform(state)
+          end
+
+          private
+
+          def json_shift(state)
+            state.object_nl.empty? or return ''
+            state.indent * state.depth
+          end
+
+          def json_transform(state)
+            delim = ','
+            delim << state.object_nl
+            result = '{'
+            result << state.object_nl
+            depth = state.depth += 1
+            first = true
+            indent = !state.object_nl.empty?
+            each { |key,value|
+              result << delim unless first
+              result << state.indent * depth if indent
+              result << key.to_s.to_json(state)
+              result << state.space_before
+              result << ':'
+              result << state.space
+              result << value.to_json(state)
+              first = false
+            }
+            depth = state.depth -= 1
+            result << state.object_nl
+            result << state.indent * depth if indent if indent
+            result << '}'
+            result
+          end
+        end
+
+        module Array
+          # Returns a JSON string containing a JSON array, that is unparsed from
+          # this Array instance.
+          # _state_ is a JSON::State object, that can also be used to configure the
+          # produced JSON string output further.
+          def to_json(state = nil, *)
+            state = State.from_state(state)
+            state.check_max_nesting
+            json_transform(state)
+          end
+
+          private
+
+          def json_transform(state)
+            delim = ','
+            delim << state.array_nl
+            result = '['
+            result << state.array_nl
+            depth = state.depth += 1
+            first = true
+            indent = !state.array_nl.empty?
+            each { |value|
+              result << delim unless first
+              result << state.indent * depth if indent
+              result << value.to_json(state)
+              first = false
+            }
+            depth = state.depth -= 1
+            result << state.array_nl
+            result << state.indent * depth if indent
+            result << ']'
+          end
+        end
+
+        module Integer
+          # Returns a JSON string representation for this Integer number.
+          def to_json(*) to_s end
+        end
+
+        module Float
+          # Returns a JSON string representation for this Float number.
+          def to_json(state = nil, *)
+            state = State.from_state(state)
+            case
+            when infinite?
+              if state.allow_nan?
+                to_s
+              else
+                raise GeneratorError, "#{self} not allowed in JSON"
+              end
+            when nan?
+              if state.allow_nan?
+                to_s
+              else
+                raise GeneratorError, "#{self} not allowed in JSON"
+              end
+            else
+              to_s
+            end
+          end
+        end
+
+        module String
+          if defined?(::Encoding)
+            # This string should be encoded with UTF-8 A call to this method
+            # returns a JSON string encoded with UTF16 big endian characters as
+            # \u????.
+            def to_json(state = nil, *args)
+              state = State.from_state(state)
+              if encoding == ::Encoding::UTF_8
+                string = self
+              else
+                string = encode(::Encoding::UTF_8)
+              end
+              if state.ascii_only?
+                '"' << JSON.utf8_to_json_ascii(string) << '"'
+              else
+                '"' << JSON.utf8_to_json(string) << '"'
+              end
+            end
+          else
+            # This string should be encoded with UTF-8 A call to this method
+            # returns a JSON string encoded with UTF16 big endian characters as
+            # \u????.
+            def to_json(state = nil, *args)
+              state = State.from_state(state)
+              if state.ascii_only?
+                '"' << JSON.utf8_to_json_ascii(self) << '"'
+              else
+                '"' << JSON.utf8_to_json(self) << '"'
+              end
+            end
+          end
+
+          # Module that holds the extinding methods if, the String module is
+          # included.
+          module Extend
+            # Raw Strings are JSON Objects (the raw bytes are stored in an
+            # array for the key "raw"). The Ruby String can be created by this
+            # module method.
+            def json_create(o)
+              o['raw'].pack('C*')
+            end
+          end
+
+          # Extends _modul_ with the String::Extend module.
+          def self.included(modul)
+            modul.extend Extend
+          end
+
+          # This method creates a raw object hash, that can be nested into
+          # other data structures and will be unparsed as a raw string. This
+          # method should be used, if you want to convert raw strings to JSON
+          # instead of UTF-8 strings, e. g. binary data.
+          def to_json_raw_object
+            {
+              JSON.create_id  => self.class.name,
+              'raw'           => self.unpack('C*'),
+            }
+          end
+
+          # This method creates a JSON text from the result of
+          # a call to to_json_raw_object of this String.
+          def to_json_raw(*args)
+            to_json_raw_object.to_json(*args)
+          end
+        end
+
+        module TrueClass
+          # Returns a JSON string for true: 'true'.
+          def to_json(*) 'true' end
+        end
+
+        module FalseClass
+          # Returns a JSON string for false: 'false'.
+          def to_json(*) 'false' end
+        end
+
+        module NilClass
+          # Returns a JSON string for nil: 'null'.
+          def to_json(*) 'null' end
+        end
+      end
+    end
+  end
+end