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authornaruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2007-12-04 08:09:44 +0000
committernaruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2007-12-04 08:09:44 +0000
commit825ce503c0e52edb944def195be0d3d55e3e71b3 (patch)
treefce260b670515f356a94d399fe97853b65ae1268 /ext/json
parent86f1cff0eb8fa3c4d5925fb8fe5eac31a323bb84 (diff)
* 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
Diffstat (limited to 'ext/json')
-rw-r--r--ext/json/extconf.rb3
-rw-r--r--ext/json/lib/json.rb235
-rw-r--r--ext/json/lib/json/Array.xpm21
-rw-r--r--ext/json/lib/json/FalseClass.xpm21
-rw-r--r--ext/json/lib/json/Hash.xpm21
-rw-r--r--ext/json/lib/json/Key.xpm73
-rw-r--r--ext/json/lib/json/NilClass.xpm21
-rw-r--r--ext/json/lib/json/Numeric.xpm28
-rw-r--r--ext/json/lib/json/String.xpm96
-rw-r--r--ext/json/lib/json/TrueClass.xpm21
-rw-r--r--ext/json/lib/json/add/core.rb120
-rw-r--r--ext/json/lib/json/add/rails.rb58
-rw-r--r--ext/json/lib/json/common.rb354
-rw-r--r--ext/json/lib/json/editor.rb1363
-rw-r--r--ext/json/lib/json/ext.rb13
-rw-r--r--ext/json/lib/json/json.xpm1499
-rw-r--r--ext/json/lib/json/pure.rb75
-rw-r--r--ext/json/lib/json/pure/generator.rb394
-rw-r--r--ext/json/lib/json/pure/parser.rb259
-rw-r--r--ext/json/lib/json/version.rb9
20 files changed, 4684 insertions, 0 deletions
diff --git a/ext/json/extconf.rb b/ext/json/extconf.rb
new file mode 100644
index 0000000..850798c
--- /dev/null
+++ b/ext/json/extconf.rb
@@ -0,0 +1,3 @@
+require 'mkmf'
+create_makefile('json')
+
diff --git a/ext/json/lib/json.rb b/ext/json/lib/json.rb
new file mode 100644
index 0000000..3b0b711
--- /dev/null
+++ b/ext/json/lib/json.rb
@@ -0,0 +1,235 @@
+require 'json/common'
+# = json - JSON for Ruby
+#
+# == Description
+#
+# This is a implementation of the JSON specification according to RFC 4627
+# (http://www.ietf.org/rfc/rfc4627.txt). Starting from version 1.0.0 on there
+# will be two variants available:
+#
+# * A pure ruby variant, that relies on the iconv and the stringscan
+# extensions, which are both part of the ruby standard library.
+# * The quite a bit faster C extension variant, which is in parts implemented
+# in C and comes with its own unicode conversion functions and a parser
+# generated by the ragel state machine compiler
+# (http://www.cs.queensu.ca/~thurston/ragel).
+#
+# Both variants of the JSON generator escape all non-ASCII an control
+# characters with \uXXXX escape sequences, and support UTF-16 surrogate pairs
+# in order to be able to generate the whole range of unicode code points. This
+# means that generated JSON text is encoded as UTF-8 (because ASCII is a subset
+# of UTF-8) and at the same time avoids decoding problems for receiving
+# endpoints, that don't expect UTF-8 encoded texts. On the negative side this
+# may lead to a bit longer strings than necessarry.
+#
+# All strings, that are to be encoded as JSON strings, should be UTF-8 byte
+# sequences on the Ruby side. To encode raw binary strings, that aren't UTF-8
+# encoded, please use the to_json_raw_object method of String (which produces
+# an object, that contains a byte array) and decode the result on the receiving
+# endpoint.
+#
+# == Author
+#
+# Florian Frank <mailto:flori@ping.de>
+#
+# == License
+#
+# This software is distributed under the same license as Ruby itself, see
+# http://www.ruby-lang.org/en/LICENSE.txt.
+#
+# == Download
+#
+# The latest version of this library can be downloaded at
+#
+# * http://rubyforge.org/frs?group_id=953
+#
+# Online Documentation should be located at
+#
+# * http://json.rubyforge.org
+#
+# == Usage
+#
+# To use JSON you can
+# require 'json'
+# to load the installed variant (either the extension 'json' or the pure
+# variant 'json_pure'). If you have installed the extension variant, you can
+# pick either the extension variant or the pure variant by typing
+# require 'json/ext'
+# or
+# require 'json/pure'
+#
+# You can choose to load a set of common additions to ruby core's objects if
+# you
+# require 'json/add/core'
+#
+# After requiring this you can, e. g., serialise/deserialise Ruby ranges:
+#
+# JSON JSON(1..10) # => 1..10
+#
+# To find out how to add JSON support to other or your own classes, read the
+# Examples section below.
+#
+# To get the best compatibility to rails' JSON implementation, you can
+# require 'json/add/rails'
+#
+# Both of the additions attempt to require 'json' (like above) first, if it has
+# not been required yet.
+#
+# == Speed Comparisons
+#
+# I have created some benchmark results (see the benchmarks subdir of the
+# package) for the JSON-Parser to estimate the speed up in the C extension:
+#
+# JSON::Pure::Parser:: 28.90 calls/second
+# JSON::Ext::Parser:: 505.50 calls/second
+#
+# This is ca. <b>17.5</b> times the speed of the pure Ruby implementation.
+#
+# I have benchmarked the JSON-Generator as well. This generates a few more
+# values, because there are different modes, that also influence the achieved
+# speed:
+#
+# * JSON::Pure::Generator:
+# generate:: 35.06 calls/second
+# pretty_generate:: 34.00 calls/second
+# fast_generate:: 41.06 calls/second
+#
+# * JSON::Ext::Generator:
+# generate:: 492.11 calls/second
+# pretty_generate:: 348.85 calls/second
+# fast_generate:: 541.60 calls/second
+#
+# * Speedup Ext/Pure:
+# generate safe:: 14.0 times
+# generate pretty:: 10.3 times
+# generate fast:: 13.2 times
+#
+# The rails framework includes a generator as well, also it seems to be rather
+# slow: I measured only 23.87 calls/second which is slower than any of my pure
+# generator results. Here a comparison of the different speedups with the Rails
+# measurement as the divisor:
+#
+# * Speedup Pure/Rails:
+# generate safe:: 1.5 times
+# generate pretty:: 1.4 times
+# generate fast:: 1.7 times
+#
+# * Speedup Ext/Rails:
+# generate safe:: 20.6 times
+# generate pretty:: 14.6 times
+# generate fast:: 22.7 times
+#
+# To achieve the fastest JSON text output, you can use the
+# fast_generate/fast_unparse methods. Beware, that this will disable the
+# checking for circular Ruby data structures, which may cause JSON to go into
+# an infinite loop.
+#
+# == Examples
+#
+# To create a JSON text from a ruby data structure, you
+# can call JSON.generate (or JSON.unparse) like that:
+#
+# json = JSON.generate [1, 2, {"a"=>3.141}, false, true, nil, 4..10]
+# # => "[1,2,{\"a\":3.141},false,true,null,\"4..10\"]"
+#
+# To create a valid JSON text you have to make sure, that the output is
+# embedded in either a JSON array [] or a JSON object {}. The easiest way to do
+# this, is by putting your values in a Ruby Array or Hash instance.
+#
+# To get back a ruby data structure from a JSON text, you have to call
+# JSON.parse on it:
+#
+# JSON.parse json
+# # => [1, 2, {"a"=>3.141}, false, true, nil, "4..10"]
+#
+# Note, that the range from the original data structure is a simple
+# string now. The reason for this is, that JSON doesn't support ranges
+# or arbitrary classes. In this case the json library falls back to call
+# Object#to_json, which is the same as #to_s.to_json.
+#
+# It's possible to add JSON support serialization to arbitrary classes by
+# simply implementing a more specialized version of the #to_json method, that
+# should return a JSON object (a hash converted to JSON with #to_json) like
+# this (don't forget the *a for all the arguments):
+#
+# class Range
+# def to_json(*a)
+# {
+# 'json_class' => self.class.name, # = 'Range'
+# 'data' => [ first, last, exclude_end? ]
+# }.to_json(*a)
+# end
+# end
+#
+# The hash key 'json_class' is the class, that will be asked to deserialise the
+# JSON representation later. In this case it's 'Range', but any namespace of
+# the form 'A::B' or '::A::B' will do. All other keys are arbitrary and can be
+# used to store the necessary data to configure the object to be deserialised.
+#
+# If a the key 'json_class' is found in a JSON object, the JSON parser checks
+# if the given class responds to the json_create class method. If so, it is
+# called with the JSON object converted to a Ruby hash. So a range can
+# be deserialised by implementing Range.json_create like this:
+#
+# class Range
+# def self.json_create(o)
+# new(*o['data'])
+# end
+# end
+#
+# Now it possible to serialise/deserialise ranges as well:
+#
+# json = JSON.generate [1, 2, {"a"=>3.141}, false, true, nil, 4..10]
+# # => "[1,2,{\"a\":3.141},false,true,null,{\"json_class\":\"Range\",\"data\":[4,10,false]}]"
+# JSON.parse json
+# # => [1, 2, {"a"=>3.141}, false, true, nil, 4..10]
+#
+# JSON.generate always creates the shortest possible string representation of a
+# ruby data structure in one line. This good for data storage or network
+# protocols, but not so good for humans to read. Fortunately there's also
+# JSON.pretty_generate (or JSON.pretty_generate) that creates a more
+# readable output:
+#
+# puts JSON.pretty_generate([1, 2, {"a"=>3.141}, false, true, nil, 4..10])
+# [
+# 1,
+# 2,
+# {
+# "a": 3.141
+# },
+# false,
+# true,
+# null,
+# {
+# "json_class": "Range",
+# "data": [
+# 4,
+# 10,
+# false
+# ]
+# }
+# ]
+#
+# There are also the methods Kernel#j for unparse, and Kernel#jj for
+# pretty_unparse output to the console, that work analogous to Core Ruby's p
+# and the pp library's pp methods.
+#
+# The script tools/server.rb contains a small example if you want to test, how
+# receiving a JSON object from a webrick server in your browser with the
+# javasript prototype library (http://www.prototypejs.org) works.
+#
+module JSON
+ require 'json/version'
+
+ if VARIANT_BINARY
+ require 'json/ext'
+ else
+ begin
+ require 'json/ext'
+ rescue LoadError
+ require 'json/pure'
+ end
+ end
+
+ JSON_LOADED = true
+end
diff --git a/ext/json/lib/json/Array.xpm b/ext/json/lib/json/Array.xpm
new file mode 100644
index 0000000..27c4801
--- /dev/null
+++ b/ext/json/lib/json/Array.xpm
@@ -0,0 +1,21 @@
+/* XPM */
+static char * Array_xpm[] = {
+"16 16 2 1",
+" c None",
+". c #000000",
+" ",
+" ",
+" ",
+" .......... ",
+" . . ",
+" . . ",
+" . . ",
+" . . ",
+" . . ",
+" . . ",
+" . . ",
+" . . ",
+" .......... ",
+" ",
+" ",
+" "};
diff --git a/ext/json/lib/json/FalseClass.xpm b/ext/json/lib/json/FalseClass.xpm
new file mode 100644
index 0000000..25ce608
--- /dev/null
+++ b/ext/json/lib/json/FalseClass.xpm
@@ -0,0 +1,21 @@
+/* XPM */
+static char * False_xpm[] = {
+"16 16 2 1",
+" c None",
+". c #FF0000",
+" ",
+" ",
+" ",
+" ...... ",
+" . ",
+" . ",
+" . ",
+" ...... ",
+" . ",
+" . ",
+" . ",
+" . ",
+" . ",
+" ",
+" ",
+" "};
diff --git a/ext/json/lib/json/Hash.xpm b/ext/json/lib/json/Hash.xpm
new file mode 100644
index 0000000..cd8f6f7
--- /dev/null
+++ b/ext/json/lib/json/Hash.xpm
@@ -0,0 +1,21 @@
+/* XPM */
+static char * Hash_xpm[] = {
+"16 16 2 1",
+" c None",
+". c #000000",
+" ",
+" ",
+" ",
+" . . ",
+" . . ",
+" . . ",
+" ......... ",
+" . . ",
+" . . ",
+" ......... ",
+" . . ",
+" . . ",
+" . . ",
+" ",
+" ",
+" "};
diff --git a/ext/json/lib/json/Key.xpm b/ext/json/lib/json/Key.xpm
new file mode 100644
index 0000000..9fd7281
--- /dev/null
+++ b/ext/json/lib/json/Key.xpm
@@ -0,0 +1,73 @@
+/* XPM */
+static char * Key_xpm[] = {
+"16 16 54 1",
+" c None",
+". c #110007",
+"+ c #0E0900",
+"@ c #000013",
+"# c #070600",
+"$ c #F6F006",
+"% c #ECE711",
+"& c #E5EE00",
+"* c #16021E",
+"= c #120900",
+"- c #EDF12B",
+"; c #000033",
+"> c #0F0000",
+", c #FFFE03",
+"' c #E6E500",
+") c #16021B",
+"! c #F7F502",
+"~ c #000E00",
+"{ c #130000",
+"] c #FFF000",
+"^ c #FFE711",
+"/ c #140005",
+"( c #190025",
+"_ c #E9DD27",
+": c #E7DC04",
+"< c #FFEC09",
+"[ c #FFE707",
+"} c #FFDE10",
+"| c #150021",
+"1 c #160700",
+"2 c #FAF60E",
+"3 c #EFE301",
+"4 c #FEF300",
+"5 c #E7E000",
+"6 c #FFFF08",
+"7 c #0E0206",
+"8 c #040000",
+"9 c #03052E",
+"0 c #041212",
+"a c #070300",
+"b c #F2E713",
+"c c #F9DE13",
+"d c #36091E",
+"e c #00001C",
+"f c #1F0010",
+"g c #FFF500",
+"h c #DEDE00",
+"i c #050A00",
+"j c #FAF14A",
+"k c #F5F200",
+"l c #040404",
+"m c #1A0D00",
+"n c #EDE43D",
+"o c #ECE007",
+" ",
+" ",
+" .+@ ",
+" #$%&* ",
+" =-;>,') ",
+" >!~{]^/ ",
+" (_:<[}| ",
+" 1234567 ",
+" 890abcd ",
+" efghi ",
+" >jkl ",
+" mnol ",
+" >kl ",
+" ll ",
+" ",
+" "};
diff --git a/ext/json/lib/json/NilClass.xpm b/ext/json/lib/json/NilClass.xpm
new file mode 100644
index 0000000..3509f06
--- /dev/null
+++ b/ext/json/lib/json/NilClass.xpm
@@ -0,0 +1,21 @@
+/* XPM */
+static char * False_xpm[] = {
+"16 16 2 1",
+" c None",
+". c #000000",
+" ",
+" ",
+" ",
+" ... ",
+" . . ",
+" . . ",
+" . . ",
+" . . ",
+" . . ",
+" . . ",
+" . . ",
+" . . ",
+" ... ",
+" ",
+" ",
+" "};
diff --git a/ext/json/lib/json/Numeric.xpm b/ext/json/lib/json/Numeric.xpm
new file mode 100644
index 0000000..e071e2e
--- /dev/null
+++ b/ext/json/lib/json/Numeric.xpm
@@ -0,0 +1,28 @@
+/* XPM */
+static char * Numeric_xpm[] = {
+"16 16 9 1",
+" c None",
+". c #FF0000",
+"+ c #0000FF",
+"@ c #0023DB",
+"# c #00EA14",
+"$ c #00FF00",
+"% c #004FAF",
+"& c #0028D6",
+"* c #00F20C",
+" ",
+" ",
+" ",
+" ... +++@#$$$$ ",
+" .+ %& $$ ",
+" . + $ ",
+" . + $$ ",
+" . ++$$$$ ",
+" . + $$ ",
+" . + $ ",
+" . + $ ",
+" . + $ $$ ",
+" .....++++*$$ ",
+" ",
+" ",
+" "};
diff --git a/ext/json/lib/json/String.xpm b/ext/json/lib/json/String.xpm
new file mode 100644
index 0000000..f79a89c
--- /dev/null
+++ b/ext/json/lib/json/String.xpm
@@ -0,0 +1,96 @@
+/* XPM */
+static char * String_xpm[] = {
+"16 16 77 1",
+" c None",
+". c #000000",
+"+ c #040404",
+"@ c #080806",
+"# c #090606",
+"$ c #EEEAE1",
+"% c #E7E3DA",
+"& c #E0DBD1",
+"* c #D4B46F",
+"= c #0C0906",
+"- c #E3C072",
+"; c #E4C072",
+"> c #060505",
+", c #0B0A08",
+"' c #D5B264",
+") c #D3AF5A",
+"! c #080602",
+"~ c #E1B863",
+"{ c #DDB151",
+"] c #DBAE4A",
+"^ c #DDB152",
+"/ c #DDB252",
+"( c #070705",
+"_ c #0C0A07",
+": c #D3A33B",
+"< c #020201",
+"[ c #DAAA41",
+"} c #040302",
+"| c #E4D9BF",
+"1 c #0B0907",
+"2 c #030201",
+"3 c #020200",
+"4 c #C99115",
+"5 c #080704",
+"6 c #DBC8A2",
+"7 c #E7D7B4",
+"8 c #E0CD9E",
+"9 c #080601",
+"0 c #040400",
+"a c #010100",
+"b c #0B0B08",
+"c c #DCBF83",
+"d c #DCBC75",
+"e c #DEB559",
+"f c #040301",
+"g c #BC8815",
+"h c #120E07",
+"i c #060402",
+"j c #0A0804",
+"k c #D4A747",
+"l c #D6A12F",
+"m c #0E0C05",
+"n c #C8C1B0",
+"o c #1D1B15",
+"p c #D7AD51",
+"q c #070502",
+"r c #080804",
+"s c #BC953B",
+"t c #C4BDAD",
+"u c #0B0807",
+"v c #DBAC47",
+"w c #1B150A",
+"x c #B78A2C",
+"y c #D8A83C",
+"z c #D4A338",
+"A c #0F0B03",
+"B c #181105",
+"C c #C59325",
+"D c #C18E1F",
+"E c #060600",
+"F c #CC992D",
+"G c #B98B25",
+"H c #B3831F",
+"I c #C08C1C",
+"J c #060500",
+"K c #0E0C03",
+"L c #0D0A00",
+" ",
+" .+@# ",
+" .$%&*= ",
+" .-;>,')! ",
+" .~. .{]. ",
+" .^/. (_:< ",
+" .[.}|$12 ",
+" 345678}90 ",
+" a2bcdefgh ",
+" ijkl.mno ",
+" <pq. rstu ",
+" .]v. wx= ",
+" .yzABCDE ",
+" .FGHIJ ",
+" 0KL0 ",
+" "};
diff --git a/ext/json/lib/json/TrueClass.xpm b/ext/json/lib/json/TrueClass.xpm
new file mode 100644
index 0000000..143eef4
--- /dev/null
+++ b/ext/json/lib/json/TrueClass.xpm
@@ -0,0 +1,21 @@
+/* XPM */
+static char * TrueClass_xpm[] = {
+"16 16 2 1",
+" c None",
+". c #0BF311",
+" ",
+" ",
+" ",
+" ......... ",
+" . ",
+" . ",
+" . ",
+" . ",
+" . ",
+" . ",
+" . ",
+" . ",
+" . ",
+" ",
+" ",
+" "};
diff --git a/ext/json/lib/json/add/core.rb b/ext/json/lib/json/add/core.rb
new file mode 100644
index 0000000..630ed6e
--- /dev/null
+++ b/ext/json/lib/json/add/core.rb
@@ -0,0 +1,120 @@
+# This file contains implementations of ruby core's custom objects for
+# serialisation/deserialisation.
+
+unless Object.const_defined?(:JSON) and ::JSON.const_defined?(:JSON_LOADED) and
+ ::JSON::JSON_LOADED
+ require 'json'
+end
+require 'date'
+
+class Time
+ def self.json_create(object)
+ at(*object.values_at('s', 'u'))
+ end
+
+ def to_json(*args)
+ {
+ 'json_class' => self.class.name.to_s,
+ 's' => tv_sec,
+ 'u' => tv_usec,
+ }.to_json(*args)
+ end
+end
+
+class Date
+ def self.json_create(object)
+ civil(*object.values_at('y', 'm', 'd', 'sg'))
+ end
+
+ def to_json(*args)
+ {
+ 'json_class' => self.class.name.to_s,
+ 'y' => year,
+ 'm' => month,
+ 'd' => day,
+ 'sg' => @sg,
+ }.to_json(*args)
+ end
+end
+
+class DateTime
+ def self.json_create(object)
+ args = object.values_at('y', 'm', 'd', 'H', 'M', 'S')
+ of_a, of_b = object['of'].split('/')
+ args << Rational(of_a.to_i, of_b.to_i)
+ args << object['sg']
+ civil(*args)
+ end
+
+ def to_json(*args)
+ {
+ 'json_class' => self.class.name.to_s,
+ 'y' => year,
+ 'm' => month,
+ 'd' => day,
+ 'H' => hour,
+ 'M' => min,
+ 'S' => sec,
+ 'of' => offset.to_s,
+ 'sg' => @sg,
+ }.to_json(*args)
+ end
+end
+
+class Range
+ def self.json_create(object)
+ new(*object['a'])
+ end
+
+ def to_json(*args)
+ {
+ 'json_class' => self.class.name.to_s,
+ 'a' => [ first, last, exclude_end? ]
+ }.to_json(*args)
+ end
+end
+
+class Struct
+ def self.json_create(object)
+ new(*object['v'])
+ end
+
+ def to_json(*args)
+ klass = self.class.name.to_s
+ klass.empty? and raise JSON::JSONError, "Only named structs are supported!"
+ {
+ 'json_class' => klass,
+ 'v' => values,
+ }.to_json(*args)
+ end
+end
+
+class Exception
+ def self.json_create(object)
+ result = new(object['m'])
+ result.set_backtrace object['b']
+ result
+ end
+
+ def to_json(*args)
+ {
+ 'json_class' => self.class.name.to_s,
+ 'm' => message,
+ 'b' => backtrace,
+ }.to_json(*args)
+ end
+end
+
+class Regexp
+ def self.json_create(object)
+ new(object['s'], object['o'])
+ end
+
+ def to_json(*)
+ {
+ 'json_class' => self.class.name.to_s,
+ 'o' => options,
+ 's' => source,
+ }.to_json
+ end
+end
diff --git a/ext/json/lib/json/add/rails.rb b/ext/json/lib/json/add/rails.rb
new file mode 100644
index 0000000..e86ed1a
--- /dev/null
+++ b/ext/json/lib/json/add/rails.rb
@@ -0,0 +1,58 @@
+# This file contains implementations of rails custom objects for
+# serialisation/deserialisation.
+
+unless Object.const_defined?(:JSON) and ::JSON.const_defined?(:JSON_LOADED) and
+ ::JSON::JSON_LOADED
+ require 'json'
+end
+
+class Object
+ def self.json_create(object)
+ obj = new
+ for key, value in object
+ next if key == 'json_class'
+ instance_variable_set "@#{key}", value
+ end
+ obj
+ end
+
+ def to_json(*a)
+ result = {
+ 'json_class' => self.class.name
+ }
+ instance_variables.inject(result) do |r, name|
+ r[name[1..-1]] = instance_variable_get name
+ r
+ end
+ result.to_json(*a)
+ end
+end
+
+class Symbol
+ def to_json(*a)
+ to_s.to_json(*a)
+ end
+end
+
+module Enumerable
+ def to_json(*a)
+ to_a.to_json(*a)
+ end
+end
+
+# class Regexp
+# def to_json(*)
+# inspect
+# end
+# end
+#
+# The above rails definition has some problems:
+#
+# 1. { 'foo' => /bar/ }.to_json # => "{foo: /bar/}"
+# This isn't valid JSON, because the regular expression syntax is not
+# defined in RFC 4627. (And unquoted strings are disallowed there, too.)
+# Though it is valid Javascript.
+#
+# 2. { 'foo' => /bar/mix }.to_json # => "{foo: /bar/mix}"
+# This isn't even valid Javascript.
+
diff --git a/ext/json/lib/json/common.rb b/ext/json/lib/json/common.rb
new file mode 100644
index 0000000..7bc5ae0
--- /dev/null
+++ b/ext/json/lib/json/common.rb
@@ -0,0 +1,354 @@
+require 'json/version'
+
+module JSON
+ class << self
+ # If _object_ is string like parse the string and return the parsed result
+ # as a Ruby data structure. Otherwise generate a JSON text from the Ruby
+ # data structure object and return it.
+ #
+ # The _opts_ argument is passed through to generate/parse respectively, see
+ # generate and parse for their documentation.
+ def [](object, opts = {})
+ if object.respond_to? :to_str
+ JSON.parse(object.to_str, opts => {})
+ else
+ JSON.generate(object, opts => {})
+ end
+ end
+
+ # Returns the JSON parser class, that is used by JSON. This might be either
+ # JSON::Ext::Parser or JSON::Pure::Parser.
+ attr_reader :parser
+
+ # Set the JSON parser class _parser_ to be used by JSON.
+ def parser=(parser) # :nodoc:
+ @parser = parser
+ remove_const :Parser if const_defined? :Parser
+ const_set :Parser, parser
+ end
+
+ # Return the constant located at _path_. The format of _path_ has to be
+ # either ::A::B::C or A::B::C. In any case A has to be located at the top
+ # level (absolute namespace path?). If there doesn't exist a constant at
+ # the given path, an ArgumentError is raised.
+ def deep_const_get(path) # :nodoc:
+ path = path.to_s
+ path.split(/::/).inject(Object) do |p, c|
+ case
+ when c.empty? then p
+ when p.const_defined?(c) then p.const_get(c)
+ else raise ArgumentError, "can't find const #{path}"
+ end
+ end
+ end
+
+ # Set the module _generator_ to be used by JSON.
+ def generator=(generator) # :nodoc:
+ @generator = generator
+ generator_methods = generator::GeneratorMethods
+ for const in generator_methods.constants
+ klass = deep_const_get(const)
+ modul = generator_methods.const_get(const)
+ klass.class_eval do
+ instance_methods(false).each do |m|
+ m.to_s == 'to_json' and remove_method m
+ end
+ include modul
+ end
+ end
+ self.state = generator::State
+ const_set :State, self.state
+ end
+
+ # Returns the JSON generator modul, that is used by JSON. This might be
+ # either JSON::Ext::Generator or JSON::Pure::Generator.
+ attr_reader :generator
+
+ # Returns the JSON generator state class, that is used by JSON. This might
+ # be either JSON::Ext::Generator::State or JSON::Pure::Generator::State.
+ attr_accessor :state
+
+ # This is create identifier, that is used to decide, if the _json_create_
+ # hook of a class should be called. It defaults to 'json_class'.
+ attr_accessor :create_id
+ end
+ self.create_id = 'json_class'
+
+ NaN = (-1.0) ** 0.5
+
+ Infinity = 1.0/0
+
+ MinusInfinity = -Infinity
+
+ # The base exception for JSON errors.
+ class JSONError < StandardError; end
+
+ # This exception is raised, if a parser error occurs.
+ class ParserError < JSONError; end
+
+ # This exception is raised, if the nesting of parsed datastructures is too
+ # deep.
+ class NestingError < ParserError; end
+
+ # This exception is raised, if a generator or unparser error occurs.
+ class GeneratorError < JSONError; end
+ # For backwards compatibility
+ UnparserError = GeneratorError
+
+ # If a circular data structure is encountered while unparsing
+ # this exception is raised.
+ class CircularDatastructure < GeneratorError; end
+
+ # This exception is raised, if the required unicode support is missing on the
+ # system. Usually this means, that the iconv library is not installed.
+ class MissingUnicodeSupport < JSONError; end
+
+ module_function
+
+ # Parse the JSON string _source_ into a Ruby data structure and return it.
+ #
+ # _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, 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 parse(source, opts = {})
+ JSON.parser.new(source, opts).parse
+ end
+
+ # Parse the JSON string _source_ into a Ruby data structure and return it.
+ # The bang version of the parse method, defaults to the more dangerous values
+ # for the _opts_ hash, so be sure only to parse trusted _source_ strings.
+ #
+ # _opts_ can have the following keys:
+ # * *max_nesting*: The maximum depth of nesting allowed in the parsed data
+ # structures. Enable depth checking with :max_nesting => anInteger. The parse!
+ # methods defaults to not doing max depth checking: This can be dangerous,
+ # if someone wants to fill up your stack.
+ # * *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 true.
+ # * *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 parse!(source, opts = {})
+ opts = {
+ :max_nesting => false,
+ :allow_nan => true
+ }.update(opts)
+ JSON.parser.new(source, opts).parse
+ end
+
+ # Unparse the Ruby data structure _obj_ into a single line JSON string and
+ # return it. _state_ is
+ # * a JSON::State object,
+ # * or a Hash like object (responding to to_hash),
+ # * an object convertible into a hash by a to_h method,
+ # that is used as or to configure a State object.
+ #
+ # It defaults to a state object, that creates the shortest possible JSON text
+ # in one line, checks for circular data structures and doesn't allow NaN,
+ # Infinity, and -Infinity.
+ #
+ # A _state_ hash 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.
+ # * *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.
+ # * *max_nesting*: The maximum depth of nesting allowed in the data
+ # structures from which JSON is to be generated. Disable depth checking
+ # with :max_nesting => false, it defaults to 19.
+ #
+ # See also the fast_generate for the fastest creation method with the least
+ # amount of sanity checks, and the pretty_generate method for some
+ # defaults for a pretty output.
+ def generate(obj, state = nil)
+ if state
+ state = State.from_state(state)
+ else
+ state = State.new
+ end
+ obj.to_json(state)
+ end
+
+ # :stopdoc:
+ # I want to deprecate these later, so I'll first be silent about them, and later delete them.
+ alias unparse generate
+ module_function :unparse
+ # :startdoc:
+
+ # Unparse the Ruby data structure _obj_ into a single line JSON string and
+ # return it. This method disables the checks for circles in Ruby objects, and
+ # also generates NaN, Infinity, and, -Infinity float values.
+ #
+ # *WARNING*: Be careful not to pass any Ruby data structures with circles as
+ # _obj_ argument, because this will cause JSON to go into an infinite loop.
+ def fast_generate(obj)
+ obj.to_json(nil)
+ end
+
+ # :stopdoc:
+ # I want to deprecate these later, so I'll first be silent about them, and later delete them.
+ alias fast_unparse fast_generate
+ module_function :fast_unparse
+ # :startdoc:
+
+ # Unparse the Ruby data structure _obj_ into a JSON string and return it. The
+ # returned string is a prettier form of the string returned by #unparse.
+ #
+ # The _opts_ argument can be used to configure the generator, see the
+ # generate method for a more detailed explanation.
+ def pretty_generate(obj, opts = nil)
+ state = JSON.state.new(
+ :indent => ' ',
+ :space => ' ',
+ :object_nl => "\n",
+ :array_nl => "\n",
+ :check_circular => true
+ )
+ if opts
+ if opts.respond_to? :to_hash
+ opts = opts.to_hash
+ elsif opts.respond_to? :to_h
+ opts = opts.to_h
+ else
+ raise TypeError, "can't convert #{opts.class} into Hash"
+ end
+ state.configure(opts)
+ end
+ obj.to_json(state)
+ end
+
+ # :stopdoc:
+ # I want to deprecate these later, so I'll first be silent about them, and later delete them.
+ alias pretty_unparse pretty_generate
+ module_function :pretty_unparse
+ # :startdoc:
+
+ # Load a ruby data structure from a JSON _source_ and return it. A source can
+ # either be a string like object, an IO like object, or an object responding
+ # to the read method. If _proc_ was given, it will be called with any nested
+ # Ruby object as an argument recursively in depth first order.
+ #
+ # This method is part of the implementation of the load/dump interface of
+ # Marshal and YAML.
+ def load(source, proc = nil)
+ if source.respond_to? :to_str
+ source = source.to_str
+ elsif source.respond_to? :to_io
+ source = source.to_io.read
+ else
+ source = source.read
+ end
+ result = parse(source, :max_nesting => false, :allow_nan => true)
+ recurse_proc(result, &proc) if proc
+ result
+ end
+
+ def recurse_proc(result, &proc)
+ case result
+ when Array
+ result.each { |x| recurse_proc x, &proc }
+ proc.call result
+ when Hash
+ result.each { |x, y| recurse_proc x, &proc; recurse_proc y, &proc }
+ proc.call result
+ else
+ proc.call result
+ end
+ end
+ private :recurse_proc
+ module_function :recurse_proc
+
+ alias restore load
+ module_function :restore
+
+ # Dumps _obj_ as a JSON string, i.e. calls generate on the object and returns
+ # the result.
+ #
+ # If anIO (an IO like object or an object that responds to the write method)
+ # was given, the resulting JSON is written to it.
+ #
+ # If the number of nested arrays or objects exceeds _limit_ an ArgumentError
+ # exception is raised. This argument is similar (but not exactly the
+ # same!) to the _limit_ argument in Marshal.dump.
+ #
+ # This method is part of the implementation of the load/dump interface of
+ # Marshal and YAML.
+ def dump(obj, anIO = nil, limit = nil)
+ if anIO and limit.nil?
+ anIO = anIO.to_io if anIO.respond_to?(:to_io)
+ unless anIO.respond_to?(:write)
+ limit = anIO
+ anIO = nil
+ end
+ end
+ limit ||= 0
+ result = generate(obj, :allow_nan => true, :max_nesting => limit)
+ if anIO
+ anIO.write result
+ anIO
+ else
+ result
+ end
+ rescue JSON::NestingError
+ raise ArgumentError, "exceed depth limit"
+ end
+end
+
+module ::Kernel
+ # Outputs _objs_ to STDOUT as JSON strings in the shortest form, that is in
+ # one line.
+ def j(*objs)
+ objs.each do |obj|
+ puts JSON::generate(obj, :allow_nan => true, :max_nesting => false)
+ end
+ nil
+ end
+
+ # Ouputs _objs_ to STDOUT as JSON strings in a pretty format, with
+ # indentation and over many lines.
+ def jj(*objs)
+ objs.each do |obj|
+ puts JSON::pretty_generate(obj, :allow_nan => true, :max_nesting => false)
+ end
+ nil
+ end
+
+ # If _object_ is string like parse the string and return the parsed result as
+ # a Ruby data structure. Otherwise generate a JSON text from the Ruby data
+ # structure object and return it.
+ #
+ # The _opts_ argument is passed through to generate/parse respectively, see
+ # generate and parse for their documentation.
+ def JSON(object, opts = {})
+ if object.respond_to? :to_str
+ JSON.parse(object.to_str, opts)
+ else
+ JSON.generate(object, opts)
+ end
+ end
+end
+
+class ::Class
+ # Returns true, if this class can be used to create an instance
+ # from a serialised JSON string. The class has to implement a class
+ # method _json_create_ that expects a hash as first parameter, which includes
+ # the required data.
+ def json_creatable?
+ respond_to?(:json_create)
+ end
+end
+ # vim: set et sw=2 ts=2:
diff --git a/ext/json/lib/json/editor.rb b/ext/json/lib/json/editor.rb
new file mode 100644
index 0000000..9a65400
--- /dev/null
+++ b/ext/json/lib/json/editor.rb
@@ -0,0 +1,1363 @@
+# To use the GUI JSON editor, start the edit_json.rb executable script. It
+# requires ruby-gtk to be installed.
+
+require 'gtk2'
+require 'iconv'
+require 'json'
+require 'rbconfig'
+require 'open-uri'
+
+module JSON
+ module Editor
+ include Gtk
+
+ # Beginning of the editor window title
+ TITLE = 'JSON Editor'.freeze
+
+ # Columns constants
+ ICON_COL, TYPE_COL, CONTENT_COL = 0, 1, 2
+
+ # JSON primitive types (Containers)
+ CONTAINER_TYPES = %w[Array Hash].sort
+ # All JSON primitive types
+ ALL_TYPES = (%w[TrueClass FalseClass Numeric String NilClass] +
+ CONTAINER_TYPES).sort
+
+ # The Nodes necessary for the tree representation of a JSON document
+ ALL_NODES = (ALL_TYPES + %w[Key]).sort
+
+ DEFAULT_DIALOG_KEY_PRESS_HANDLER = lambda do |dialog, event|
+ case event.keyval
+ when Gdk::Keyval::GDK_Return
+ dialog.response Dialog::RESPONSE_ACCEPT
+ when Gdk::Keyval::GDK_Escape
+ dialog.response Dialog::RESPONSE_REJECT
+ end
+ end
+
+ # Returns the Gdk::Pixbuf of the icon named _name_ from the icon cache.
+ def Editor.fetch_icon(name)
+ @icon_cache ||= {}
+ unless @icon_cache.key?(name)
+ path = File.dirname(__FILE__)
+ @icon_cache[name] = Gdk::Pixbuf.new(File.join(path, name + '.xpm'))
+ end
+ @icon_cache[name]
+ end
+
+ # Opens an error dialog on top of _window_ showing the error message
+ # _text_.
+ def Editor.error_dialog(window, text)
+ dialog = MessageDialog.new(window, Dialog::MODAL,
+ MessageDialog::ERROR,
+ MessageDialog::BUTTONS_CLOSE, text)
+ dialog.show_all
+ dialog.run
+ rescue TypeError
+ dialog = MessageDialog.new(Editor.window, Dialog::MODAL,
+ MessageDialog::ERROR,
+ MessageDialog::BUTTONS_CLOSE, text)
+ dialog.show_all
+ dialog.run
+ ensure
+ dialog.destroy if dialog
+ end
+
+ # Opens a yes/no question dialog on top of _window_ showing the error
+ # message _text_. If yes was answered _true_ is returned, otherwise
+ # _false_.
+ def Editor.question_dialog(window, text)
+ dialog = MessageDialog.new(window, Dialog::MODAL,
+ MessageDialog::QUESTION,
+ MessageDialog::BUTTONS_YES_NO, text)
+ dialog.show_all
+ dialog.run do |response|
+ return Gtk::Dialog::RESPONSE_YES === response
+ end
+ ensure
+ dialog.destroy if dialog
+ end
+
+ # Convert the tree model starting from Gtk::TreeIter _iter_ into a Ruby
+ # data structure and return it.
+ def Editor.model2data(iter)
+ return nil if iter.nil?
+ case iter.type
+ when 'Hash'
+ hash = {}
+ iter.each { |c| hash[c.content] = Editor.model2data(c.first_child) }
+ hash
+ when 'Array'
+ array = Array.new(iter.n_children)
+ iter.each_with_index { |c, i| array[i] = Editor.model2data(c) }
+ array
+ when 'Key'
+ iter.content
+ when 'String'
+ iter.content
+ when 'Numeric'
+ content = iter.content
+ if /\./.match(content)
+ content.to_f
+ else
+ content.to_i
+ end
+ when 'TrueClass'
+ true
+ when 'FalseClass'
+ false
+ when 'NilClass'
+ nil
+ else
+ fail "Unknown type found in model: #{iter.type}"
+ end
+ end
+
+ # Convert the Ruby data structure _data_ into tree model data for Gtk and
+ # returns the whole model. If the parameter _model_ wasn't given a new
+ # Gtk::TreeStore is created as the model. The _parent_ parameter specifies
+ # the parent node (iter, Gtk:TreeIter instance) to which the data is
+ # appended, alternativeley the result of the yielded block is used as iter.
+ def Editor.data2model(data, model = nil, parent = nil)
+ model ||= TreeStore.new(Gdk::Pixbuf, String, String)
+ iter = if block_given?
+ yield model
+ else
+ model.append(parent)
+ end
+ case data
+ when Hash
+ iter.type = 'Hash'
+ data.sort.each do |key, value|
+ pair_iter = model.append(iter)
+ pair_iter.type = 'Key'
+ pair_iter.content = key.to_s
+ Editor.data2model(value, model, pair_iter)
+ end
+ when Array
+ iter.type = 'Array'
+ data.each do |value|
+ Editor.data2model(value, model, iter)
+ end
+ when Numeric
+ iter.type = 'Numeric'
+ iter.content = data.to_s
+ when String, true, false, nil
+ iter.type = data.class.name
+ iter.content = data.nil? ? 'null' : data.to_s
+ else
+ iter.type = 'String'
+ iter.content = data.to_s
+ end
+ model
+ end
+
+ # The Gtk::TreeIter class is reopened and some auxiliary methods are added.
+ class Gtk::TreeIter
+ include Enumerable
+
+ # Traverse each of this Gtk::TreeIter instance's children
+ # and yield to them.
+ def each
+ n_children.times { |i| yield nth_child(i) }
+ end
+
+ # Recursively traverse all nodes of this Gtk::TreeIter's subtree
+ # (including self) and yield to them.
+ def recursive_each(&block)
+ yield self
+ each do |i|
+ i.recursive_each(&block)
+ end
+ end
+
+ # Remove the subtree of this Gtk::TreeIter instance from the
+ # model _model_.
+ def remove_subtree(model)
+ while current = first_child
+ model.remove(current)
+ end
+ end
+
+ # Returns the type of this node.
+ def type
+ self[TYPE_COL]
+ end
+
+ # Sets the type of this node to _value_. This implies setting
+ # the respective icon accordingly.
+ def type=(value)
+ self[TYPE_COL] = value
+ self[ICON_COL] = Editor.fetch_icon(value)
+ end
+
+ # Returns the content of this node.
+ def content
+ self[CONTENT_COL]
+ end
+
+ # Sets the content of this node to _value_.
+ def content=(value)
+ self[CONTENT_COL] = value
+ end
+ end
+
+ # This module bundles some method, that can be used to create a menu. It
+ # should be included into the class in question.
+ module MenuExtension
+ include Gtk
+
+ # Creates a Menu, that includes MenuExtension. _treeview_ is the
+ # Gtk::TreeView, on which it operates.
+ def initialize(treeview)
+ @treeview = treeview
+ @menu = Menu.new
+ end
+
+ # Returns the Gtk::TreeView of this menu.
+ attr_reader :treeview
+
+ # Returns the menu.
+ attr_reader :menu
+
+ # Adds a Gtk::SeparatorMenuItem to this instance's #menu.
+ def add_separator
+ menu.append SeparatorMenuItem.new
+ end
+
+ # Adds a Gtk::MenuItem to this instance's #menu. _label_ is the label
+ # string, _klass_ is the item type, and _callback_ is the procedure, that
+ # is called if the _item_ is activated.
+ def add_item(label, keyval = nil, klass = MenuItem, &callback)
+ label = "#{label} (C-#{keyval.chr})" if keyval
+ item = klass.new(label)
+ item.signal_connect(:activate, &callback)
+ if keyval
+ self.signal_connect(:'key-press-event') do |item, event|
+ if event.state & Gdk::Window::ModifierType::CONTROL_MASK != 0 and
+ event.keyval == keyval
+ callback.call item
+ end
+ end
+ end
+ menu.append item
+ item
+ end
+
+ # This method should be implemented in subclasses to create the #menu of
+ # this instance. It has to be called after an instance of this class is
+ # created, to build the menu.
+ def create
+ raise NotImplementedError
+ end
+
+ def method_missing(*a, &b)
+ treeview.__send__(*a, &b)
+ end
+ end
+
+ # This class creates the popup menu, that opens when clicking onto the
+ # treeview.
+ class PopUpMenu
+ include MenuExtension
+
+ # Change the type or content of the selected node.
+ def change_node(item)
+ if current = selection.selected
+ parent = current.parent
+ old_type, old_content = current.type, current.content
+ if ALL_TYPES.include?(old_type)
+ @clipboard_data = Editor.model2data(current)
+ type, content = ask_for_element(parent, current.type,
+ current.content)
+ if type
+ current.type, current.content = type, content
+ current.remove_subtree(model)
+ toplevel.display_status("Changed a node in tree.")
+ window.change
+ end
+ else
+ toplevel.display_status(
+ "Cannot change node of type #{old_type} in tree!")
+ end
+ end
+ end
+
+ # Cut the selected node and its subtree, and save it into the
+ # clipboard.
+ def cut_node(item)
+ if current = selection.selected
+ if current and current.type == 'Key'
+ @clipboard_data = {
+ current.content => Editor.model2data(current.first_child)
+ }
+ else
+ @clipboard_data = Editor.model2data(current)
+ end
+ model.remove(current)
+ window.change
+ toplevel.display_status("Cut a node from tree.")
+ end
+ end
+
+ # Copy the selected node and its subtree, and save it into the
+ # clipboard.
+ def copy_node(item)
+ if current = selection.selected
+ if current and current.type == 'Key'
+ @clipboard_data = {
+ current.content => Editor.model2data(current.first_child)
+ }
+ else
+ @clipboard_data = Editor.model2data(current)
+ end
+ window.change
+ toplevel.display_status("Copied a node from tree.")
+ end
+ end
+
+ # Paste the data in the clipboard into the selected Array or Hash by
+ # appending it.
+ def paste_node_appending(item)
+ if current = selection.selected
+ if @clipboard_data
+ case current.type
+ when 'Array'
+ Editor.data2model(@clipboard_data, model, current)
+ expand_collapse(current)
+ when 'Hash'
+ if @clipboard_data.is_a? Hash
+ parent = current.parent
+ hash = Editor.model2data(current)
+ model.remove(current)
+ hash.update(@clipboard_data)
+ Editor.data2model(hash, model, parent)
+ if parent
+ expand_collapse(parent)
+ elsif @expanded
+ expand_all
+ end
+ window.change
+ else
+ toplevel.display_status(
+ "Cannot paste non-#{current.type} data into '#{current.type}'!")
+ end
+ else
+ toplevel.display_status(
+ "Cannot paste node below '#{current.type}'!")
+ end
+ else
+ toplevel.display_status("Nothing to paste in clipboard!")
+ end
+ else
+ toplevel.display_status("Append a node into the root first!")
+ end
+ end
+
+ # Paste the data in the clipboard into the selected Array inserting it
+ # before the selected element.
+ def paste_node_inserting_before(item)
+ if current = selection.selected
+ if @clipboard_data
+ parent = current.parent or return
+ parent_type = parent.type
+ if parent_type == 'Array'
+ selected_index = parent.each_with_index do |c, i|
+ break i if c == current
+ end
+ Editor.data2model(@clipboard_data, model, parent) do |m|
+ m.insert_before(parent, current)
+ end
+ expand_collapse(current)
+ toplevel.display_status("Inserted an element to " +
+ "'#{parent_type}' before index #{selected_index}.")
+ window.change
+ else
+ toplevel.display_status(
+ "Cannot insert node below '#{parent_type}'!")
+ end
+ else
+ toplevel.display_status("Nothing to paste in clipboard!")
+ end
+ else
+ toplevel.display_status("Append a node into the root first!")
+ end
+ end
+
+ # Append a new node to the selected Hash or Array.
+ def append_new_node(item)
+ if parent = selection.selected
+ parent_type = parent.type
+ case parent_type
+ when 'Hash'
+ key, type, content = ask_for_hash_pair(parent)
+ key or return
+ iter = create_node(parent, 'Key', key)
+ iter = create_node(iter, type, content)
+ toplevel.display_status(
+ "Added a (key, value)-pair to '#{parent_type}'.")
+ window.change
+ when 'Array'
+ type, content = ask_for_element(parent)
+ type or return
+ iter = create_node(parent, type, content)
+ window.change
+ toplevel.display_status("Appendend an element to '#{parent_type}'.")
+ else
+ toplevel.display_status("Cannot append to '#{parent_type}'!")
+ end
+ else
+ type, content = ask_for_element
+ type or return
+ iter = create_node(nil, type, content)
+ window.change
+ end
+ end
+
+ # Insert a new node into an Array before the selected element.
+ def insert_new_node(item)
+ if current = selection.selected
+ parent = current.parent or return
+ parent_parent = parent.parent
+ parent_type = parent.type
+ if parent_type == 'Array'
+ selected_index = parent.each_with_index do |c, i|
+ break i if c == current
+ end
+ type, content = ask_for_element(parent)
+ type or return
+ iter = model.insert_before(parent, current)
+ iter.type, iter.content = type, content
+ toplevel.display_status("Inserted an element to " +
+ "'#{parent_type}' before index #{selected_index}.")
+ window.change
+ else
+ toplevel.display_status(
+ "Cannot insert node below '#{parent_type}'!")
+ end
+ else
+ toplevel.display_status("Append a node into the root first!")
+ end
+ end
+
+ # Recursively collapse/expand a subtree starting from the selected node.
+ def collapse_expand(item)
+ if current = selection.selected
+ if row_expanded?(current.path)
+ collapse_row(current.path)
+ else
+ expand_row(current.path, true)
+ end
+ else
+ toplevel.display_status("Append a node into the root first!")
+ end
+ end
+
+ # Create the menu.
+ def create
+ add_item("Change node", ?n, &method(:change_node))
+ add_separator
+ add_item("Cut node", ?X, &method(:cut_node))
+ add_item("Copy node", ?C, &method(:copy_node))
+ add_item("Paste node (appending)", ?A, &method(:paste_node_appending))
+ add_item("Paste node (inserting before)", ?I,
+ &method(:paste_node_inserting_before))
+ add_separator
+ add_item("Append new node", ?a, &method(:append_new_node))
+ add_item("Insert new node before", ?i, &method(:insert_new_node))
+ add_separator
+ add_item("Collapse/Expand node (recursively)", ?e,
+ &method(:collapse_expand))
+
+ menu.show_all
+ signal_connect(:button_press_event) do |widget, event|
+ if event.kind_of? Gdk::EventButton and event.button == 3
+ menu.popup(nil, nil, event.button, event.time)
+ end
+ end
+ signal_connect(:popup_menu) do
+ menu.popup(nil, nil, 0, Gdk::Event::CURRENT_TIME)
+ end
+ end
+ end
+
+ # This class creates the File pulldown menu.
+ class FileMenu
+ include MenuExtension
+
+ # Clear the model and filename, but ask to save the JSON document, if
+ # unsaved changes have occured.
+ def new(item)
+ window.clear
+ end
+
+ # Open a file and load it into the editor. Ask to save the JSON document
+ # first, if unsaved changes have occured.
+ def open(item)
+ window.file_open
+ end
+
+ def open_location(item)
+ window.location_open
+ end
+
+ # Revert the current JSON document in the editor to the saved version.
+ def revert(item)
+ window.instance_eval do
+ @filename and file_open(@filename)
+ end
+ end
+
+ # Save the current JSON document.
+ def save(item)
+ window.file_save
+ end
+
+ # Save the current JSON document under the given filename.
+ def save_as(item)
+ window.file_save_as
+ end
+
+ # Quit the editor, after asking to save any unsaved changes first.
+ def quit(item)
+ window.quit
+ end
+
+ # Create the menu.
+ def create
+ title = MenuItem.new('File')
+ title.submenu = menu
+ add_item('New', &method(:new))
+ add_item('Open', ?o, &method(:open))
+ add_item('Open location', ?l, &method(:open_location))
+ add_item('Revert', &method(:revert))
+ add_separator
+ add_item('Save', ?s, &method(:save))
+ add_item('Save As', ?S, &method(:save_as))
+ add_separator
+ add_item('Quit', ?q, &method(:quit))
+ title
+ end
+ end
+
+ # This class creates the Edit pulldown menu.
+ class EditMenu
+ include MenuExtension
+
+ # Copy data from model into primary clipboard.
+ def copy(item)
+ data = Editor.model2data(model.iter_first)
+ json = JSON.pretty_generate(data, :max_nesting => false)
+ c = Gtk::Clipboard.get(Gdk::Selection::PRIMARY)
+ c.text = json
+ end
+
+ # Copy json text from primary clipboard into model.
+ def paste(item)
+ c = Gtk::Clipboard.get(Gdk::Selection::PRIMARY)
+ if json = c.wait_for_text
+ window.ask_save if @changed
+ begin
+ window.edit json
+ rescue JSON::ParserError
+ window.clear
+ end
+ end
+ end
+
+ # Find a string in all nodes' contents and select the found node in the
+ # treeview.
+ def find(item)
+ @search = ask_for_find_term(@search) or return
+ iter = model.get_iter('0') or return
+ iter.recursive_each do |i|
+ if @iter
+ if @iter != i
+ next
+ else
+ @iter = nil
+ next
+ end
+ elsif @search.match(i[CONTENT_COL])
+ set_cursor(i.path, nil, false)
+ @iter = i
+ break
+ end
+ end
+ end
+
+ # Repeat the last search given by #find.
+ def find_again(item)
+ @search or return
+ iter = model.get_iter('0')
+ iter.recursive_each do |i|
+ if @iter
+ if @iter != i
+ next
+ else
+ @iter = nil
+ next
+ end
+ elsif @search.match(i[CONTENT_COL])
+ set_cursor(i.path, nil, false)
+ @iter = i
+ break
+ end
+ end
+ end
+
+ # Sort (Reverse sort) all elements of the selected array by the given
+ # expression. _x_ is the element in question.
+ def sort(item)
+ if current = selection.selected
+ if current.type == 'Array'
+ parent = current.parent
+ ary = Editor.model2data(current)
+ order, reverse = ask_for_order
+ order or return
+ begin
+ block = eval "lambda { |x| #{order} }"
+ if reverse
+ ary.sort! { |a,b| block[b] <=> block[a] }
+ else
+ ary.sort! { |a,b| block[a] <=> block[b] }
+ end
+ rescue => e
+ Editor.error_dialog(self, "Failed to sort Array with #{order}: #{e}!")
+ else
+ Editor.data2model(ary, model, parent) do |m|
+ m.insert_before(parent, current)
+ end
+ model.remove(current)
+ expand_collapse(parent)
+ window.change
+ toplevel.display_status("Array has been sorted.")
+ end
+ else
+ toplevel.display_status("Only Array nodes can be sorted!")
+ end
+ else
+ toplevel.display_status("Select an Array to sort first!")
+ end
+ end
+
+ # Create the menu.
+ def create
+ title = MenuItem.new('Edit')
+ title.submenu = menu
+ add_item('Copy', ?c, &method(:copy))
+ add_item('Paste', ?v, &method(:paste))
+ add_separator
+ add_item('Find', ?f, &method(:find))
+ add_item('Find Again', ?g, &method(:find_again))
+ add_separator
+ add_item('Sort', ?S, &method(:sort))
+ title
+ end
+ end
+
+ class OptionsMenu
+ include MenuExtension
+
+ # Collapse/Expand all nodes by default.
+ def collapsed_nodes(item)
+ if expanded
+ self.expanded = false
+ collapse_all
+ else
+ self.expanded = true
+ expand_all
+ end
+ end
+
+ # Toggle pretty saving mode on/off.
+ def pretty_saving(item)
+ @pretty_item.toggled
+ window.change
+ end
+
+ attr_reader :pretty_item
+
+ # Create the menu.
+ def create
+ title = MenuItem.new('Options')
+ title.submenu = menu
+ add_item('Collapsed nodes', nil, CheckMenuItem, &method(:collapsed_nodes))
+ @pretty_item = add_item('Pretty saving', nil, CheckMenuItem,
+ &method(:pretty_saving))
+ @pretty_item.active = true
+ window.unchange
+ title
+ end
+ end
+
+ # This class inherits from Gtk::TreeView, to configure it and to add a lot
+ # of behaviour to it.
+ class JSONTreeView < Gtk::TreeView
+ include Gtk
+
+ # Creates a JSONTreeView instance, the parameter _window_ is
+ # a MainWindow instance and used for self delegation.
+ def initialize(window)
+ @window = window
+ super(TreeStore.new(Gdk::Pixbuf, String, String))
+ self.selection.mode = SELECTION_BROWSE
+
+ @expanded = false
+ self.headers_visible = false
+ add_columns
+ add_popup_menu
+ end
+
+ # Returns the MainWindow instance of this JSONTreeView.
+ attr_reader :window
+
+ # Returns true, if nodes are autoexpanding, false otherwise.
+ attr_accessor :expanded
+
+ private
+
+ def add_columns
+ cell = CellRendererPixbuf.new
+ column = TreeViewColumn.new('Icon', cell,
+ 'pixbuf' => ICON_COL
+ )
+ append_column(column)
+
+ cell = CellRendererText.new
+ column = TreeViewColumn.new('Type', cell,
+ 'text' => TYPE_COL
+ )
+ append_column(column)
+
+ cell = CellRendererText.new
+ cell.editable = true
+ column = TreeViewColumn.new('Content', cell,
+ 'text' => CONTENT_COL
+ )
+ cell.signal_connect(:edited, &method(:cell_edited))
+ append_column(column)
+ end
+
+ def unify_key(iter, key)
+ return unless iter.type == 'Key'
+ parent = iter.parent
+ if parent.any? { |c| c != iter and c.content == key }
+ old_key = key
+ i = 0
+ begin
+ key = sprintf("%s.%d", old_key, i += 1)
+ end while parent.any? { |c| c != iter and c.content == key }
+ end
+ iter.content = key
+ end
+
+ def cell_edited(cell, path, value)
+ iter = model.get_iter(path)
+ case iter.type
+ when 'Key'
+ unify_key(iter, value)
+ toplevel.display_status('Key has been changed.')
+ when 'FalseClass'
+ value.downcase!
+ if value == 'true'
+ iter.type, iter.content = 'TrueClass', 'true'
+ end
+ when 'TrueClass'
+ value.downcase!
+ if value == 'false'
+ iter.type, iter.content = 'FalseClass', 'false'
+ end
+ when 'Numeric'
+ iter.content = (Integer(value) rescue Float(value) rescue 0).to_s
+ when 'String'
+ iter.content = value
+ when 'Hash', 'Array'
+ return
+ else
+ fail "Unknown type found in model: #{iter.type}"
+ end
+ window.change
+ end
+
+ def configure_value(value, type)
+ value.editable = false
+ case type
+ when 'Array', 'Hash'
+ value.text = ''
+ when 'TrueClass'
+ value.text = 'true'
+ when 'FalseClass'
+ value.text = 'false'
+ when 'NilClass'
+ value.text = 'null'
+ when 'Numeric', 'String'
+ value.text ||= ''
+ value.editable = true
+ else
+ raise ArgumentError, "unknown type '#{type}' encountered"
+ end
+ end
+
+ def add_popup_menu
+ menu = PopUpMenu.new(self)
+ menu.create
+ end
+
+ public
+
+ # Create a _type_ node with content _content_, and add it to _parent_
+ # in the model. If _parent_ is nil, create a new model and put it into
+ # the editor treeview.
+ def create_node(parent, type, content)
+ iter = if parent
+ model.append(parent)
+ else
+ new_model = Editor.data2model(nil)
+ toplevel.view_new_model(new_model)
+ new_model.iter_first
+ end
+ iter.type, iter.content = type, content
+ expand_collapse(parent) if parent
+ iter
+ end
+
+ # Ask for a hash key, value pair to be added to the Hash node _parent_.
+ def ask_for_hash_pair(parent)
+ key_input = type_input = value_input = nil
+
+ dialog = Dialog.new("New (key, value) pair for Hash", nil, nil,
+ [ Stock::OK, Dialog::RESPONSE_ACCEPT ],
+ [ Stock::CANCEL, Dialog::RESPONSE_REJECT ]
+ )
+ dialog.width_request = 640
+
+ hbox = HBox.new(false, 5)
+ hbox.pack_start(Label.new("Key:"), false)
+ hbox.pack_start(key_input = Entry.new)
+ key_input.text = @key || ''
+ dialog.vbox.pack_start(hbox, false)
+ key_input.signal_connect(:activate) do
+ if parent.any? { |c| c.content == key_input.text }
+ toplevel.display_status('Key already exists in Hash!')
+ key_input.text = ''
+ else
+ toplevel.display_status('Key has been changed.')
+ end
+ end
+
+ hbox = HBox.new(false, 5)
+ hbox.pack_start(Label.new("Type:"), false)
+ hbox.pack_start(type_input = ComboBox.new(true))
+ ALL_TYPES.each { |t| type_input.append_text(t) }
+ type_input.active = @type || 0
+ dialog.vbox.pack_start(hbox, false)
+
+ type_input.signal_connect(:changed) do
+ value_input.editable = false
+ case ALL_TYPES[type_input.active]
+ when 'Array', 'Hash'
+ value_input.text = ''
+ when 'TrueClass'
+ value_input.text = 'true'
+ when 'FalseClass'
+ value_input.text = 'false'
+ when 'NilClass'
+ value_input.text = 'null'
+ else
+ value_input.text = ''
+ value_input.editable = true
+ end
+ end
+
+ hbox = HBox.new(false, 5)
+ hbox.pack_start(Label.new("Value:"), false)
+ hbox.pack_start(value_input = Entry.new)
+ value_input.width_chars = 60
+ value_input.text = @value || ''
+ dialog.vbox.pack_start(hbox, false)
+
+ dialog.signal_connect(:'key-press-event', &DEFAULT_DIALOG_KEY_PRESS_HANDLER)
+ dialog.show_all
+ self.focus = dialog
+ dialog.run do |response|
+ if response == Dialog::RESPONSE_ACCEPT
+ @key = key_input.text
+ type = ALL_TYPES[@type = type_input.active]
+ content = value_input.text
+ return @key, type, content
+ end
+ end
+ return
+ ensure
+ dialog.destroy
+ end
+
+ # Ask for an element to be appended _parent_.
+ def ask_for_element(parent = nil, default_type = nil, value_text = @content)
+ type_input = value_input = nil
+
+ dialog = Dialog.new(
+ "New element into #{parent ? parent.type : 'root'}",
+ nil, nil,
+ [ Stock::OK, Dialog::RESPONSE_ACCEPT ],
+ [ Stock::CANCEL, Dialog::RESPONSE_REJECT ]
+ )
+ hbox = HBox.new(false, 5)
+ hbox.pack_start(Label.new("Type:"), false)
+ hbox.pack_start(type_input = ComboBox.new(true))
+ default_active = 0
+ types = parent ? ALL_TYPES : CONTAINER_TYPES
+ types.each_with_index do |t, i|
+ type_input.append_text(t)
+ if t == default_type
+ default_active = i
+ end
+ end
+ type_input.active = default_active
+ dialog.vbox.pack_start(hbox, false)
+ type_input.signal_connect(:changed) do
+ configure_value(value_input, types[type_input.active])
+ end
+
+ hbox = HBox.new(false, 5)
+ hbox.pack_start(Label.new("Value:"), false)
+ hbox.pack_start(value_input = Entry.new)
+ value_input.width_chars = 60
+ value_input.text = value_text if value_text
+ configure_value(value_input, types[type_input.active])
+
+ dialog.vbox.pack_start(hbox, false)
+
+ dialog.signal_connect(:'key-press-event', &DEFAULT_DIALOG_KEY_PRESS_HANDLER)
+ dialog.show_all
+ self.focus = dialog
+ dialog.run do |response|
+ if response == Dialog::RESPONSE_ACCEPT
+ type = types[type_input.active]
+ @content = case type
+ when 'Numeric'
+ Integer(value_input.text) rescue Float(value_input.text) rescue 0
+ else
+ value_input.text
+ end.to_s
+ return type, @content
+ end
+ end
+ return
+ ensure
+ dialog.destroy if dialog
+ end
+
+ # Ask for an order criteria for sorting, using _x_ for the element in
+ # question. Returns the order criterium, and true/false for reverse
+ # sorting.
+ def ask_for_order
+ dialog = Dialog.new(
+ "Give an order criterium for 'x'.",
+ nil, nil,
+ [ Stock::OK, Dialog::RESPONSE_ACCEPT ],
+ [ Stock::CANCEL, Dialog::RESPONSE_REJECT ]
+ )
+ hbox = HBox.new(false, 5)
+
+ hbox.pack_start(Label.new("Order:"), false)
+ hbox.pack_start(order_input = Entry.new)
+ order_input.text = @order || 'x'
+ order_input.width_chars = 60
+
+ hbox.pack_start(reverse_checkbox = CheckButton.new('Reverse'), false)
+
+ dialog.vbox.pack_start(hbox, false)
+
+ dialog.signal_connect(:'key-press-event', &DEFAULT_DIALOG_KEY_PRESS_HANDLER)
+ dialog.show_all
+ self.focus = dialog
+ dialog.run do |response|
+ if response == Dialog::RESPONSE_ACCEPT
+ return @order = order_input.text, reverse_checkbox.active?
+ end
+ end
+ return
+ ensure
+ dialog.destroy if dialog
+ end
+
+ # Ask for a find term to search for in the tree. Returns the term as a
+ # string.
+ def ask_for_find_term(search = nil)
+ dialog = Dialog.new(
+ "Find a node matching regex in tree.",
+ nil, nil,
+ [ Stock::OK, Dialog::RESPONSE_ACCEPT ],
+ [ Stock::CANCEL, Dialog::RESPONSE_REJECT ]
+ )
+ hbox = HBox.new(false, 5)
+
+ hbox.pack_start(Label.new("Regex:"), false)
+ hbox.pack_start(regex_input = Entry.new)
+ hbox.pack_start(icase_checkbox = CheckButton.new('Icase'), false)
+ regex_input.width_chars = 60
+ if search
+ regex_input.text = search.source
+ icase_checkbox.active = search.casefold?
+ end
+
+ dialog.vbox.pack_start(hbox, false)
+
+ dialog.signal_connect(:'key-press-event', &DEFAULT_DIALOG_KEY_PRESS_HANDLER)
+ dialog.show_all
+ self.focus = dialog
+ dialog.run do |response|
+ if response == Dialog::RESPONSE_ACCEPT
+ begin
+ return Regexp.new(regex_input.text, icase_checkbox.active? ? Regexp::IGNORECASE : 0)
+ rescue => e
+ Editor.error_dialog(self, "Evaluation of regex /#{regex_input.text}/ failed: #{e}!")
+ return
+ end
+ end
+ end
+ return
+ ensure
+ dialog.destroy if dialog
+ end
+
+ # Expand or collapse row pointed to by _iter_ according
+ # to the #expanded attribute.
+ def expand_collapse(iter)
+ if expanded
+ expand_row(iter.path, true)
+ else
+ collapse_row(iter.path)
+ end
+ end
+ end
+
+ # The editor main window
+ class MainWindow < Gtk::Window
+ include Gtk
+
+ def initialize(encoding)
+ @changed = false
+ @encoding = encoding
+ super(TOPLEVEL)
+ display_title
+ set_default_size(800, 600)
+ signal_connect(:delete_event) { quit }
+
+ vbox = VBox.new(false, 0)
+ add(vbox)
+ #vbox.border_width = 0
+
+ @treeview = JSONTreeView.new(self)
+ @treeview.signal_connect(:'cursor-changed') do
+ display_status('')
+ end
+
+ menu_bar = create_menu_bar
+ vbox.pack_start(menu_bar, false, false, 0)
+
+ sw = ScrolledWindow.new(nil, nil)
+ sw.shadow_type = SHADOW_ETCHED_IN
+ sw.set_policy(POLICY_AUTOMATIC, POLICY_AUTOMATIC)
+ vbox.pack_start(sw, true, true, 0)
+ sw.add(@treeview)
+
+ @status_bar = Statusbar.new
+ vbox.pack_start(@status_bar, false, false, 0)
+
+ @filename ||= nil
+ if @filename
+ data = read_data(@filename)
+ view_new_model Editor.data2model(data)
+ end
+
+ signal_connect(:button_release_event) do |_,event|
+ if event.button == 2
+ c = Gtk::Clipboard.get(Gdk::Selection::PRIMARY)
+ if url = c.wait_for_text
+ location_open url
+ end
+ false
+ else
+ true
+ end
+ end
+ end
+
+ # Creates the menu bar with the pulldown menus and returns it.
+ def create_menu_bar
+ menu_bar = MenuBar.new
+ @file_menu = FileMenu.new(@treeview)
+ menu_bar.append @file_menu.create
+ @edit_menu = EditMenu.new(@treeview)
+ menu_bar.append @edit_menu.create
+ @options_menu = OptionsMenu.new(@treeview)
+ menu_bar.append @options_menu.create
+ menu_bar
+ end
+
+ # Sets editor status to changed, to indicate that the edited data
+ # containts unsaved changes.
+ def change
+ @changed = true
+ display_title
+ end
+
+ # Sets editor status to unchanged, to indicate that the edited data
+ # doesn't containt unsaved changes.
+ def unchange
+ @changed = false
+ display_title
+ end
+
+ # Puts a new model _model_ into the Gtk::TreeView to be edited.
+ def view_new_model(model)
+ @treeview.model = model
+ @treeview.expanded = true
+ @treeview.expand_all
+ unchange
+ end
+
+ # Displays _text_ in the status bar.
+ def display_status(text)
+ @cid ||= nil
+ @status_bar.pop(@cid) if @cid
+ @cid = @status_bar.get_context_id('dummy')
+ @status_bar.push(@cid, text)
+ end
+
+ # Opens a dialog, asking, if changes should be saved to a file.
+ def ask_save
+ if Editor.question_dialog(self,
+ "Unsaved changes to JSON model. Save?")
+ if @filename
+ file_save
+ else
+ file_save_as
+ end
+ end
+ end
+
+ # Quit this editor, that is, leave this editor's main loop.
+ def quit
+ ask_save if @changed
+ if Gtk.main_level > 0
+ destroy
+ Gtk.main_quit
+ end
+ nil
+ end
+
+ # Display the new title according to the editor's current state.
+ def display_title
+ title = TITLE.dup
+ title << ": #@filename" if @filename
+ title << " *" if @changed
+ self.title = title
+ end
+
+ # Clear the current model, after asking to save all unsaved changes.
+ def clear
+ ask_save if @changed
+ @filename = nil
+ self.view_new_model nil
+ end
+
+ def check_pretty_printed(json)
+ pretty = !!((nl_index = json.index("\n")) && nl_index != json.size - 1)
+ @options_menu.pretty_item.active = pretty
+ end
+ private :check_pretty_printed
+
+ # Open the data at the location _uri_, if given. Otherwise open a dialog
+ # to ask for the _uri_.
+ def location_open(uri = nil)
+ uri = ask_for_location unless uri
+ uri or return
+ ask_save if @changed
+ data = load_location(uri) or return
+ view_new_model Editor.data2model(data)
+ end
+
+ # Open the file _filename_ or call the #select_file method to ask for a
+ # filename.
+ def file_open(filename = nil)
+ filename = select_file('Open as a JSON file') unless filename
+ data = load_file(filename) or return
+ view_new_model Editor.data2model(data)
+ end
+
+ # Edit the string _json_ in the editor.
+ def edit(json)
+ if json.respond_to? :read
+ json = json.read
+ end
+ data = parse_json json
+ view_new_model Editor.data2model(data)
+ end
+
+ # Save the current file.
+ def file_save
+ if @filename
+ store_file(@filename)
+ else
+ file_save_as
+ end
+ end
+
+ # Save the current file as the filename
+ def file_save_as
+ filename = select_file('Save as a JSON file')
+ store_file(filename)
+ end
+
+ # Store the current JSON document to _path_.
+ def store_file(path)
+ if path
+ data = Editor.model2data(@treeview.model.iter_first)
+ File.open(path + '.tmp', 'wb') do |output|
+ data or break
+ if @options_menu.pretty_item.active?
+ output.puts JSON.pretty_generate(data, :max_nesting => false)
+ else
+ output.write JSON.generate(data, :max_nesting => false)
+ end
+ end
+ File.rename path + '.tmp', path
+ @filename = path
+ toplevel.display_status("Saved data to '#@filename'.")
+ unchange
+ end
+ rescue SystemCallError => e
+ Editor.error_dialog(self, "Failed to store JSON file: #{e}!")
+ end
+
+ # Load the file named _filename_ into the editor as a JSON document.
+ def load_file(filename)
+ if filename
+ if File.directory?(filename)
+ Editor.error_dialog(self, "Try to select a JSON file!")
+ nil
+ else
+ @filename = filename
+ if data = read_data(filename)
+ toplevel.display_status("Loaded data from '#@filename'.")
+ end
+ display_title
+ data
+ end
+ end
+ end
+
+ # Load the data at location _uri_ into the editor as a JSON document.
+ def load_location(uri)
+ data = read_data(uri) or return
+ @filename = nil
+ toplevel.display_status("Loaded data from '#{uri}'.")
+ display_title
+ data
+ end
+
+ def parse_json(json)
+ check_pretty_printed(json)
+ if @encoding && !/^utf8$/i.match(@encoding)
+ iconverter = Iconv.new('utf8', @encoding)
+ json = iconverter.iconv(json)
+ end
+ JSON::parse(json, :max_nesting => false, :create_additions => false)
+ end
+ private :parse_json
+
+ # Read a JSON document from the file named _filename_, parse it into a
+ # ruby data structure, and return the data.
+ def read_data(filename)
+ open(filename) do |f|
+ json = f.read
+ return parse_json(json)
+ end
+ rescue => e
+ Editor.error_dialog(self, "Failed to parse JSON file: #{e}!")
+ return
+ end
+
+ # Open a file selecton dialog, displaying _message_, and return the
+ # selected filename or nil, if no file was selected.
+ def select_file(message)
+ filename = nil
+ fs = FileSelection.new(message)
+ fs.set_modal(true)
+ @default_dir = File.join(Dir.pwd, '') unless @default_dir
+ fs.set_filename(@default_dir)
+ fs.set_transient_for(self)
+ fs.signal_connect(:destroy) { Gtk.main_quit }
+ fs.ok_button.signal_connect(:clicked) do
+ filename = fs.filename
+ @default_dir = File.join(File.dirname(filename), '')
+ fs.destroy
+ Gtk.main_quit
+ end
+ fs.cancel_button.signal_connect(:clicked) do
+ fs.destroy
+ Gtk.main_quit
+ end
+ fs.show_all
+ Gtk.main
+ filename
+ end
+
+ # Ask for location URI a to load data from. Returns the URI as a string.
+ def ask_for_location
+ dialog = Dialog.new(
+ "Load data from location...",
+ nil, nil,
+ [ Stock::OK, Dialog::RESPONSE_ACCEPT ],
+ [ Stock::CANCEL, Dialog::RESPONSE_REJECT ]
+ )
+ hbox = HBox.new(false, 5)
+
+ hbox.pack_start(Label.new("Location:"), false)
+ hbox.pack_start(location_input = Entry.new)
+ location_input.width_chars = 60
+ location_input.text = @location || ''
+
+ dialog.vbox.pack_start(hbox, false)
+
+ dialog.signal_connect(:'key-press-event', &DEFAULT_DIALOG_KEY_PRESS_HANDLER)
+ dialog.show_all
+ dialog.run do |response|
+ if response == Dialog::RESPONSE_ACCEPT
+ return @location = location_input.text
+ end
+ end
+ return
+ ensure
+ dialog.destroy if dialog
+ end
+ end
+
+ class << self
+ # Starts a JSON Editor. If a block was given, it yields
+ # to the JSON::Editor::MainWindow instance.
+ def start(encoding = 'utf8') # :yield: window
+ Gtk.init
+ @window = Editor::MainWindow.new(encoding)
+ @window.icon_list = [ Editor.fetch_icon('json') ]
+ yield @window if block_given?
+ @window.show_all
+ Gtk.main
+ end
+
+ # Edit the string _json_ with encoding _encoding_ in the editor.
+ def edit(json, encoding = 'utf8')
+ start(encoding) do |window|
+ window.edit json
+ end
+ end
+
+ attr_reader :window
+ end
+ end
+end
+ # vim: set et sw=2 ts=2:
diff --git a/ext/json/lib/json/ext.rb b/ext/json/lib/json/ext.rb
new file mode 100644
index 0000000..ff4fa42
--- /dev/null
+++ b/ext/json/lib/json/ext.rb
@@ -0,0 +1,13 @@
+require 'json/common'
+
+module JSON
+ # This module holds all the modules/classes that implement JSON's
+ # functionality as C extensions.
+ module Ext
+ require 'json/ext/parser'
+ require 'json/ext/generator'
+ $DEBUG and warn "Using c extension for JSON."
+ JSON.parser = Parser
+ JSON.generator = Generator
+ end
+end
diff --git a/ext/json/lib/json/json.xpm b/ext/json/lib/json/json.xpm
new file mode 100644
index 0000000..2cb626b
--- /dev/null
+++ b/ext/json/lib/json/json.xpm
@@ -0,0 +1,1499 @@
+/* XPM */
+static char * json_xpm[] = {
+"64 64 1432 2",
+" c None",
+". c #641839",
+"+ c #CF163C",
+"@ c #D31C3B",
+"# c #E11A38",
+"$ c #5F242D",
+"% c #320C22",
+"& c #9B532D",
+"* c #F32E34",
+"= c #820F33",
+"- c #4B0F34",
+"; c #8E1237",
+"> c #944029",
+", c #961325",
+"' c #A00C24",
+") c #872C23",
+"! c #694021",
+"~ c #590D1F",
+"{ c #420528",
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+"^ c #7E092B",
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+"1 c #A82320",
+"2 c #8D1D1F",
+"3 c #970127",
+"4 c #0D0123",
+"5 c #0D0324",
+"6 c #3B1E28",
+"7 c #C28429",
+"8 c #0C0523",
+"9 c #0C041E",
+"0 c #0E031A",
+"a c #11031A",
+"b c #13031B",
+"c c #13031C",
+"d c #11031D",
+"e c #19051E",
+"f c #390E20",
+"g c #9C0C20",
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+"U c #18011B",
+"V c #15011C",
+"W c #12031E",
+"X c #460A21",
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diff --git a/ext/json/lib/json/pure.rb b/ext/json/lib/json/pure.rb
new file mode 100644
index 0000000..b86d905
--- /dev/null
+++ b/ext/json/lib/json/pure.rb
@@ -0,0 +1,75 @@
+require 'json/common'
+require 'json/pure/parser'
+require 'json/pure/generator'
+
+module JSON
+ begin
+ require 'iconv'
+ # An iconv instance to convert from UTF8 to UTF16 Big Endian.
+ UTF16toUTF8 = Iconv.new('utf-8', 'utf-16be') # :nodoc:
+ # An iconv instance to convert from UTF16 Big Endian to UTF8.
+ UTF8toUTF16 = Iconv.new('utf-16be', 'utf-8') # :nodoc:
+ UTF8toUTF16.iconv('no bom')
+ rescue Errno::EINVAL, Iconv::InvalidEncoding
+ # Iconv doesn't support big endian utf-16. Let's try to hack this manually
+ # into the converters.
+ begin
+ old_verbose, $VERBSOSE = $VERBOSE, nil
+ # An iconv instance to convert from UTF8 to UTF16 Big Endian.
+ UTF16toUTF8 = Iconv.new('utf-8', 'utf-16') # :nodoc:
+ # An iconv instance to convert from UTF16 Big Endian to UTF8.
+ UTF8toUTF16 = Iconv.new('utf-16', 'utf-8') # :nodoc:
+ UTF8toUTF16.iconv('no bom')
+ if UTF8toUTF16.iconv("\xe2\x82\xac") == "\xac\x20"
+ swapper = Class.new do
+ def initialize(iconv) # :nodoc:
+ @iconv = iconv
+ end
+
+ def iconv(string) # :nodoc:
+ result = @iconv.iconv(string)
+ JSON.swap!(result)
+ end
+ end
+ UTF8toUTF16 = swapper.new(UTF8toUTF16) # :nodoc:
+ end
+ if UTF16toUTF8.iconv("\xac\x20") == "\xe2\x82\xac"
+ swapper = Class.new do
+ def initialize(iconv) # :nodoc:
+ @iconv = iconv
+ end
+
+ def iconv(string) # :nodoc:
+ string = JSON.swap!(string.dup)
+ @iconv.iconv(string)
+ end
+ end
+ UTF16toUTF8 = swapper.new(UTF16toUTF8) # :nodoc:
+ end
+ rescue Errno::EINVAL, Iconv::InvalidEncoding
+ raise MissingUnicodeSupport, "iconv doesn't seem to support UTF-8/UTF-16 conversions"
+ ensure
+ $VERBOSE = old_verbose
+ end
+ rescue LoadError
+ raise MissingUnicodeSupport,
+ "iconv couldn't be loaded, which is required for UTF-8/UTF-16 conversions"
+ end
+
+ # Swap consecutive bytes of _string_ in place.
+ def self.swap!(string) # :nodoc:
+ 0.upto(string.size / 2) do |i|
+ break unless string[2 * i + 1]
+ string[2 * i], string[2 * i + 1] = string[2 * i + 1], string[2 * i]
+ end
+ string
+ end
+
+ # This module holds all the modules/classes that implement JSON's
+ # functionality in pure ruby.
+ module Pure
+ $DEBUG and warn "Using pure library for JSON."
+ JSON.parser = Parser
+ JSON.generator = Generator
+ end
+end
diff --git a/ext/json/lib/json/pure/generator.rb b/ext/json/lib/json/pure/generator.rb
new file mode 100644
index 0000000..0fe73be
--- /dev/null
+++ b/ext/json/lib/json/pure/generator.rb
@@ -0,0 +1,394 @@
+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/ext/json/lib/json/pure/parser.rb b/ext/json/lib/json/pure/parser.rb
new file mode 100644
index 0000000..e886ba8
--- /dev/null
+++ b/ext/json/lib/json/pure/parser.rb
@@ -0,0 +1,259 @@
+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
diff --git a/ext/json/lib/json/version.rb b/ext/json/lib/json/version.rb
new file mode 100644
index 0000000..3d674ac
--- /dev/null
+++ b/ext/json/lib/json/version.rb
@@ -0,0 +1,9 @@
+module JSON
+ # JSON version
+ VERSION = '1.1.2'
+ VERSION_ARRAY = VERSION.split(/\./).map { |x| x.to_i } # :nodoc:
+ VERSION_MAJOR = VERSION_ARRAY[0] # :nodoc:
+ VERSION_MINOR = VERSION_ARRAY[1] # :nodoc:
+ VERSION_BUILD = VERSION_ARRAY[2] # :nodoc:
+ VARIANT_BINARY = false
+end