* lib/json.rb, lib/json/*: moved to ext/json/lib.

--

M    trunk/ChangeLog
D    trunk/lib/json
D    trunk/lib/json.rb
A    trunk/ext/json/lib
A    trunk/ext/json/lib/json
A    trunk/ext/json/lib/json.rb
A    trunk/ext/json/extconf.rb


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@14100 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

2 files changed, 0 insertions, 653 deletions

diff --git a/lib/json/pure/generator.rb b/lib/json/pure/generator.rb
deleted file mode 100644
index 0fe73be41a..0000000000
--- a/lib/json/pure/generator.rb
+++ /dev/null
@@ -1,394 +0,0 @@
-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.
-  def utf8_to_json(string) # :nodoc:
-    string = string.gsub(/["\\\/\x0-\x1f]/) { |c| MAP[c] }
-    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::UTF8toUTF16.iconv(c).unpack('H*')[0]
-      s.gsub!(/.{4}/n, '\\\\u\&')
-    }
-    string
-  rescue Iconv::Failure => e
-    raise GeneratorError, "Caught #{e.class}: #{e}"
-  end
-  module_function :utf8_to_json
-
-  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 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 opts
-          when self
-            opts
-          when Hash
-            new(opts)
-          else
-            new
-          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*: true if checking for circular data structures
-        #   should be done (the default), false otherwise.
-        # * *check_circular*: true if checking for circular data structures
-        #   should be done, false (the default) otherwise.
-        # * *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.
-        def initialize(opts = {})
-          @seen = {}
-          @indent         = ''
-          @space          = ''
-          @space_before   = ''
-          @object_nl      = ''
-          @array_nl       = ''
-          @check_circular = true
-          @allow_nan      = 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
-
-        def check_max_nesting(depth) # :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 should be checked,
-        # otherwise returns false.
-        def check_circular?
-          @check_circular
-        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 _object_ was already seen during this generating
-        # run. 
-        def seen?(object)
-          @seen.key?(object.__id__)
-        end
-
-        # Remember _object_, to find out if it was already encountered (if a
-        # cyclic data structure is if a cyclic data structure is rendered). 
-        def remember(object)
-          @seen[object.__id__] = true
-        end
-
-        # Forget _object_ for this generating run.
-        def forget(object)
-          @seen.delete object.__id__
-        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)
-          @check_circular = !!opts[:check_circular] if opts.key?(:check_circular)
-          @allow_nan      = !!opts[:allow_nan] if opts.key?(:allow_nan)
-          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
-
-        # 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 check_circular allow_nan max_nesting]
-            result[iv.intern] = instance_variable_get("@#{iv}")
-          end
-          result
-        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, depth = 0, *)
-            if state
-              state = JSON.state.from_state(state)
-              state.check_max_nesting(depth)
-              json_check_circular(state) { json_transform(state, depth) }
-            else
-              json_transform(state, depth)
-            end
-          end
-
-          private
-
-          def json_check_circular(state)
-            if state and state.check_circular?
-              state.seen?(self) and raise JSON::CircularDatastructure,
-                  "circular data structures not supported!"
-              state.remember self
-            end
-            yield
-          ensure
-            state and state.forget self
-          end
-
-          def json_shift(state, depth)
-            state and not state.object_nl.empty? or return ''
-            state.indent * depth
-          end
-
-          def json_transform(state, depth)
-            delim = ','
-            delim << state.object_nl if state
-            result = '{'
-            result << state.object_nl if state
-            result << map { |key,value|
-              s = json_shift(state, depth + 1)
-              s << key.to_s.to_json(state, depth + 1)
-              s << state.space_before if state
-              s << ':'
-              s << state.space if state
-              s << value.to_json(state, depth + 1)
-            }.join(delim)
-            result << state.object_nl if state
-            result << json_shift(state, depth)
-            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.
-          # _depth_ is used to find out nesting depth, to indent accordingly.
-          def to_json(state = nil, depth = 0, *)
-            if state
-              state = JSON.state.from_state(state)
-              state.check_max_nesting(depth)
-              json_check_circular(state) { json_transform(state, depth) }
-            else
-              json_transform(state, depth)
-            end
-          end
-
-          private
-
-          def json_check_circular(state)
-            if state and state.check_circular?
-              state.seen?(self) and raise JSON::CircularDatastructure,
-                "circular data structures not supported!"
-              state.remember self
-            end
-            yield
-          ensure
-            state and state.forget self
-          end
-
-          def json_shift(state, depth)
-            state and not state.array_nl.empty? or return ''
-            state.indent * depth
-          end
-
-          def json_transform(state, depth)
-            delim = ','
-            delim << state.array_nl if state
-            result = '['
-            result << state.array_nl if state
-            result << map { |value|
-              json_shift(state, depth + 1) << value.to_json(state, depth + 1)
-            }.join(delim)
-            result << state.array_nl if state
-            result << json_shift(state, depth) 
-            result << ']'
-            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, *)
-            case
-            when infinite?
-              if !state || state.allow_nan?
-                to_s
-              else
-                raise GeneratorError, "#{self} not allowed in JSON"
-              end
-            when nan?
-              if !state || state.allow_nan?
-                to_s
-              else
-                raise GeneratorError, "#{self} not allowed in JSON"
-              end
-            else
-              to_s
-            end
-          end
-        end
-
-        module String
-          # 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(*)
-            '"' << JSON.utf8_to_json(self) << '"'
-          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
diff --git a/lib/json/pure/parser.rb b/lib/json/pure/parser.rb
deleted file mode 100644
index e886ba8d2c..0000000000
--- a/lib/json/pure/parser.rb
+++ /dev/null
@@ -1,259 +0,0 @@
-require 'strscan'
-
-module JSON
-  module Pure
-    # This class implements the JSON parser that is used to parse a JSON string
-    # into a Ruby data structure.
-    class Parser < StringScanner
-      STRING                = /" ((?:[^\x0-\x1f"\\] |
-                                  \\["\\\/bfnrt] |
-                                  \\u[0-9a-fA-F]{4} |
-                                  \\[\x20-\xff])*)
-                              "/nx
-      INTEGER               = /(-?0|-?[1-9]\d*)/
-      FLOAT                 = /(-?
-                                (?:0|[1-9]\d*)
-                                (?:
-                                  \.\d+(?i:e[+-]?\d+) |
-                                  \.\d+ |
-                                  (?i:e[+-]?\d+)
-                                )
-                                )/x
-      NAN                   = /NaN/
-      INFINITY              = /Infinity/
-      MINUS_INFINITY        = /-Infinity/
-      OBJECT_OPEN           = /\{/
-      OBJECT_CLOSE          = /\}/
-      ARRAY_OPEN            = /\[/
-      ARRAY_CLOSE           = /\]/
-      PAIR_DELIMITER        = /:/
-      COLLECTION_DELIMITER  = /,/
-      TRUE                  = /true/
-      FALSE                 = /false/
-      NULL                  = /null/
-      IGNORE                = %r(
-        (?:
-         //[^\n\r]*[\n\r]| # line comments
-         /\*               # c-style comments
-         (?:
-          [^*/]|        # normal chars
-          /[^*]|        # slashes that do not start a nested comment
-          \*[^/]|       # asterisks that do not end this comment
-          /(?=\*/)      # single slash before this comment's end 
-         )*
-           \*/               # the End of this comment
-           |[ \t\r\n]+       # whitespaces: space, horicontal tab, lf, cr
-        )+
-      )mx
-
-      UNPARSED = Object.new
-
-      # Creates a new JSON::Pure::Parser instance for the string _source_.
-      #
-      # It will be configured by the _opts_ hash. _opts_ can have the following
-      # keys:
-      # * *max_nesting*: The maximum depth of nesting allowed in the parsed data
-      #   structures. Disable depth checking with :max_nesting => false|nil|0,
-      #   it defaults to 19.
-      # * *allow_nan*: If set to true, allow NaN, Infinity and -Infinity in
-      #   defiance of RFC 4627 to be parsed by the Parser. This option defaults
-      #   to false.
-      # * *create_additions*: If set to false, the Parser doesn't create
-      #   additions even if a matchin class and create_id was found. This option
-      #   defaults to true.
-      def initialize(source, opts = {})
-        super
-        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
-        @allow_nan = !!opts[:allow_nan]
-        ca = true
-        ca = opts[:create_additions] if opts.key?(:create_additions)
-        @create_id = ca ? JSON.create_id : nil
-      end
-
-      alias source string
-
-      # Parses the current JSON string _source_ and returns the complete data
-      # structure as a result.
-      def parse
-        reset
-        obj = nil
-        until eos?
-          case
-          when scan(OBJECT_OPEN)
-            obj and raise ParserError, "source '#{peek(20)}' not in JSON!"
-            @current_nesting = 1
-            obj = parse_object
-          when scan(ARRAY_OPEN)
-            obj and raise ParserError, "source '#{peek(20)}' not in JSON!"
-            @current_nesting = 1
-            obj = parse_array
-          when skip(IGNORE)
-            ;
-          else
-            raise ParserError, "source '#{peek(20)}' not in JSON!"
-          end
-        end
-        obj or raise ParserError, "source did not contain any JSON!"
-        obj
-      end
-
-      private
-
-      # Unescape characters in strings.
-      UNESCAPE_MAP = Hash.new { |h, k| h[k] = k.chr }
-      UNESCAPE_MAP.update({
-        ?"  => '"',
-        ?\\ => '\\',
-        ?/  => '/',
-        ?b  => "\b",
-        ?f  => "\f",
-        ?n  => "\n",
-        ?r  => "\r",
-        ?t  => "\t",
-        ?u  => nil, 
-      })
-
-      def parse_string
-        if scan(STRING)
-          return '' if self[1].empty?
-          self[1].gsub(%r((?:\\[\\bfnrt"/]|(?:\\u(?:[A-Fa-f\d]{4}))+|\\[\x20-\xff]))n) do |c|
-            if u = UNESCAPE_MAP[c[1]]
-              u
-            else # \uXXXX
-              bytes = ''
-              i = 0
-              while c[6 * i] == ?\\ && c[6 * i + 1] == ?u 
-                bytes << c[6 * i + 2, 2].to_i(16) << c[6 * i + 4, 2].to_i(16)
-                i += 1
-              end
-              JSON::UTF16toUTF8.iconv(bytes)
-            end
-          end
-        else
-          UNPARSED
-        end
-      rescue Iconv::Failure => e
-        raise GeneratorError, "Caught #{e.class}: #{e}"
-      end
-
-      def parse_value
-        case
-        when scan(FLOAT)
-          Float(self[1])
-        when scan(INTEGER)
-          Integer(self[1])
-        when scan(TRUE)
-          true
-        when scan(FALSE)
-          false
-        when scan(NULL)
-          nil
-        when (string = parse_string) != UNPARSED
-          string
-        when scan(ARRAY_OPEN)
-          @current_nesting += 1
-          ary = parse_array
-          @current_nesting -= 1
-          ary
-        when scan(OBJECT_OPEN)
-          @current_nesting += 1
-          obj = parse_object
-          @current_nesting -= 1
-          obj
-        when @allow_nan && scan(NAN)
-          NaN
-        when @allow_nan && scan(INFINITY)
-          Infinity
-        when @allow_nan && scan(MINUS_INFINITY)
-          MinusInfinity
-        else
-          UNPARSED
-        end
-      end
-
-      def parse_array
-        raise NestingError, "nesting of #@current_nesting is to deep" if
-          @max_nesting.nonzero? && @current_nesting > @max_nesting
-        result = []
-        delim = false
-        until eos?
-          case
-          when (value = parse_value) != UNPARSED
-            delim = false
-            result << value
-            skip(IGNORE)
-            if scan(COLLECTION_DELIMITER)
-              delim = true
-            elsif match?(ARRAY_CLOSE)
-              ;
-            else
-              raise ParserError, "expected ',' or ']' in array at '#{peek(20)}'!"
-            end
-          when scan(ARRAY_CLOSE)
-            if delim
-              raise ParserError, "expected next element in array at '#{peek(20)}'!"
-            end
-            break
-          when skip(IGNORE)
-            ;
-          else
-            raise ParserError, "unexpected token in array at '#{peek(20)}'!"
-          end
-        end
-        result
-      end
-
-      def parse_object
-        raise NestingError, "nesting of #@current_nesting is to deep" if
-          @max_nesting.nonzero? && @current_nesting > @max_nesting
-        result = {}
-        delim = false
-        until eos?
-          case
-          when (string = parse_string) != UNPARSED
-            skip(IGNORE)
-            unless scan(PAIR_DELIMITER)
-              raise ParserError, "expected ':' in object at '#{peek(20)}'!"
-            end
-            skip(IGNORE)
-            unless (value = parse_value).equal? UNPARSED
-              result[string] = value
-              delim = false
-              skip(IGNORE)
-              if scan(COLLECTION_DELIMITER)
-                delim = true
-              elsif match?(OBJECT_CLOSE)
-                ;
-              else
-                raise ParserError, "expected ',' or '}' in object at '#{peek(20)}'!"
-              end
-            else
-              raise ParserError, "expected value in object at '#{peek(20)}'!"
-            end
-          when scan(OBJECT_CLOSE)
-            if delim
-              raise ParserError, "expected next name, value pair in object at '#{peek(20)}'!"
-            end
-            if @create_id and klassname = result[@create_id]
-              klass = JSON.deep_const_get klassname
-              break unless klass and klass.json_creatable?
-              result = klass.json_create(result)
-            end
-            break
-          when skip(IGNORE)
-            ;
-          else
-            raise ParserError, "unexpected token in object at '#{peek(20)}'!"
-          end
-        end
-        result
-      end
-    end
-  end
-end