+++ /dev/null
-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::UTF8toUTF16.iconv(c).unpack('H*')[0]
- s.gsub!(/.{4}/n, '\\\\u\&')
- }
- string.force_encoding(::Encoding::UTF_8)
- string
- rescue Iconv::Failure => 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::UTF8toUTF16.iconv(c).unpack('H*')[0]
- s.gsub!(/.{4}/n, '\\\\u\&')
- }
- string
- rescue Iconv::Failure => 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 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
- SAFE_STATE_PROTOTYPE
- 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.
- def initialize(opts = {})
- @indent = ''
- @space = ''
- @space_before = ''
- @object_nl = ''
- @array_nl = ''
- @allow_nan = false
- @ascii_only = 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 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
-
- def ascii_only?
- @ascii_only
- 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)
- 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 allow_nan max_nesting]
- result[iv.intern] = instance_variable_get("@#{iv}")
- end
- result
- end
-<<<<<<< HEAD:lib/json/pure/generator.rb
-
- # 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 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
->>>>>>> v1.2:lib/json/pure/generator.rb
- 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 = State.from_state(state)
- state.check_max_nesting(depth)
- end
- json_transform(state, depth)
- end
-
- private
-
- def json_shift(state, depth)
- state and not state.object_nl.empty? or return ''
- state.indent * depth
- end
-
- def json_transform(state, depth)
- delim = ','
- if state
- delim << state.object_nl
- result = '{'
- result << state.object_nl
- depth += 1
- first = true
- indent = state && !state.object_nl.empty?
- each { |key,value|
- result << delim unless first
- result << state.indent * depth if indent
- result << key.to_s.to_json(state, depth)
- result << state.space_before
- result << ':'
- result << state.space
- result << value.to_json(state, depth)
- first = false
- }
- depth -= 1
- result << state.object_nl
- result << state.indent * depth if indent if indent
- result << '}'
- else
- result = '{'
- result << map { |key,value|
- key.to_s.to_json << ':' << value.to_json
- }.join(delim)
- result << '}'
- end
- 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 = State.from_state(state)
- state.check_max_nesting(depth)
- end
- json_transform(state, depth)
- end
-
- private
-
- def json_transform(state, depth)
- delim = ','
- if state
- delim << state.array_nl
- result = '['
- result << state.array_nl
- depth += 1
- first = true
- indent = state && !state.array_nl.empty?
- each { |value|
- result << delim unless first
- result << state.indent * depth if indent
- result << value.to_json(state, depth)
- first = false
- }
- depth -= 1
- result << state.array_nl
- result << state.indent * depth if indent
- result << ']'
- else
- '[' << map { |value| value.to_json }.join(delim) << ']'
- end
- 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
- 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(*args)
- state, = *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(*args)
- state, = *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
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