Introducing JSON

以下内容转自：http://www.json.org/

JSON (JavaScript Object Notation) is a lightweight data-interchange format. It is easy for humans to read and write. It is easy for machines to parse and generate. It is based on a subset of theJavaScript Programming Language, Standard ECMA-262 3rd Edition - December 1999. JSON is a text format that is completely language independent but uses conventions that are familiar to programmers of the C-family of languages, including C, C++, C#, Java, JavaScript, Perl, Python, and many others. These properties make JSON an ideal data-interchange language.

JSON is built on two structures:

• A collection of name/value pairs. In various languages, this is realized as anobject, record, struct, dictionary, hash table, keyed list, or associative array.
• An ordered list of values. In most languages, this is realized as an array, vector, list, or sequence.

These are universal data structures. Virtually all modernprogramming languages support them in one form or another. It makes sensethat a data format that is interchangeable with programming languages alsobe based on these structures.

In JSON, they take on these forms:

An object is an unordered set of name/value pairs. An object begins with{ (left brace) and ends with } (right brace). Each name is followed by: (colon) and the name/value pairs are separated by , (comma).

An array is an ordered collection of values. An array begins with [ (left bracket) and ends with ] (right bracket). Values are separated by, (comma).

A value can be a string in double quotes, or a number, ortrue or false or null, or an object or an array. These structures can be nested.

A string is a sequence of zero or more Unicode characters, wrapped in double quotes, using backslash escapes. A character is represented as a single character string. A string is very much like a C or Java string.

A number is very much like a C or Java number, except that the octal and hexadecimal formats are not used.

Whitespace can be inserted between any pair of tokens. Excepting a few encoding details, that completely describes the language.

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• ASP:
  • JSON for ASP.
  • JSON ASP utility class.
• ActionScript:
  • ActionScript3.
  • JSONConnector.
• Ada:
  • GNATCOLL.JSON.
• Bash:
  • Jshon.
  • JSON.sh.
• BlitzMax:
  • bmx-rjson.
• C:
  • JSON_checker.
  • YAJL.
  • js0n.
  • LibU.
  • json-c.
  • json-parser.
  • jsonsl.
  • M's JSON parser.
  • cJSON.
  • Jansson.
  • jsmn.
  • cson.
• C++:
  • JSONKit.
  • jsonme--.
  • ThorsSerializer.
  • JsonBox.
  • jsoncpp.
  • zoolib.
  • JOST.
  • CAJUN.
  • libjson.
  • nosjob.
  • rapidjson.
• C#:
  • fastJSON.
  • JSON_checker.
  • Jayrock.
  • Json.NET - LINQ to JSON.
  • LitJSON.
  • JSON for .NET.
  • JsonFx.
  • JSON@CodeTitans
  • How do I write my own parser?
  • JSONSharp.
  • JsonExSerializer.
  • fluent-json
  • Manatee Json
• Clojure:
  • clojure-json.
  • API for json.
• Cobol:
  • XML Thunder.
• ColdFusion:
  • ColdFusion 8.
  • toJSON.
• D:
  • Cashew.
  • Libdjson.
• Dart:
  • json library.

• Delphi:
  • Delphi Web Utils.
  • JSON Delphi Library.
  • JSON Toolkit.
  • tiny-json.
• E:
  • JSON in TermL.
• Erlang:
  • ejson.
  • mochijson2.
• Fantom:
  • Json.
• Go:
  • package json.
• Haskell:
  • RJson package.
  • json package.
• haXe:
  • hxJSON.
• Java:
  • org.json.
  • org.json.me.
  • Jackson JSON Processor.
  • Json-lib.
  • JSON Tools.
  • Stringtree.
  • SOJO.
  • Jettison.
  • json-taglib.
  • XStream.
  • Flexjson.
  • JON tools.
  • Argo.
  • jsonij.
  • fastjson.
  • mjson.
  • jjson.
  • json-simple.
  • json-io.
  • JsonMarshaller.
  • google-gson.
  • Json-smart.
• JavaScript:
  • JSON.
  • json2.js.
  • json_sans_eval.
  • clarinet.
• Lisp:
  • Common Lisp JSON.
  • Yason.
  • Emacs Lisp.
• LotusScript:
  • JSON LS.
• Lua:
  • Json4Lua.
  • LuaJSON.
  • LuaJSON C Library.
  • Fleece.
  • Lua CJSON.
  • dkjson.
• Matlab:
  • JSONlab.
  • JSON Parser.
  • (another) JSON Parser.

• Objective C:
  • json-framework.
  • MTJSON.
  • JSONKit.
  • yajl-objc.
  • TouchJSON.
• OCaml:
  • Yojson.
  • jsonm.
• OpenLaszlo:
  • JSON.
• Perl:
  • CPAN.
  • perl-JSON-SL.
• PHP:
  • PHP 5.2.
  • json.
  • Services_JSON.
  • Zend_JSON.
  • Solar_Json.
  • Comparison of php json libraries.
• Pike:
  • Public.Parser.JSON.
  • Public.Parser.JSON2.
• PL/SQL:
  • pljson:
  • Librairie-JSON.
• PowerShell:
  • PowerShell.
• Prolog:
  • SWI-Prolog HTTP support
• Puredata:
  • PuRestJson
• Python:
  • The Python Standard Library.
  • simplejson.
  • pyson.
  • Yajl-Py.
  • ultrajson.
• Qt:
  • QJson.
• R:
  • rjson.
• Racket:
  • json-parsing.
• Rebol:
  • json.r.
• RPG:
  • JSON Utilities.
• Ruby:
  • json.
  • yajl-ruby.
  • json-stream.
• Scala:
  • package json.
• Scheme:
  • MZScheme.
  • PLT Scheme.
• Squeak:
  • Squeak.
• Symbian:
  • s60-json-library.
• Tcl:
  • JSON.
• Visual Basic:
  • VB-JSON.
  • PW.JSON.
• Visual FoxPro:
  • fwJSON.
  • JSON.

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• RFC 4627 application/json.
  
• The JSON Group on Yahoo!
  
• JSLint, Syntax Checker.
• JSONLint, The JSON Validator.
• JSON shell for the browser
• JSON Formatter
• JSON Designer
• JSON Editor
• JSON Parser
• JSON Test
  

• JSONT.
• JSONPath.
• JSONSelect.
• Draft JSON Schema.
• json-template.
• JPath.
• jaql.
• Itemscript.
• JSPON.
• JsonML.
• BSON.
• RSON. 
  

• CouchDB.
• MongoDB.
• DBSlayer.
• Metaweb Query Language.
• ChaiDB.
• Persevere.
• FleetDB.
• OrientDB.
• terrastore.
• MLJSON.

• JSON-RPC.
• jabsorb.
• Simple Remoting.
  
• XSLT and XPath for JSON.
• xml2json-xslt.
• XSLTJSON.
• x-xml2jsonphp.
• Pure.
• csv2json.
• The Fat-free Alternative to XML