New feature: basic Ajax suggestion for tags and implementation of Dojo toolkit

git-svn-id: https://semanticscuttle.svn.sourceforge.net/svnroot/semanticscuttle/trunk@151 b3834d28-1941-0410-a4f8-b48e95affb8f

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+-------------------------------------------------------------------------------
+dojox.jsonPath
+-------------------------------------------------------------------------------
+Version 1.0
+Release date: 11/14/2007
+-------------------------------------------------------------------------------
+Project state: beta
+-------------------------------------------------------------------------------
+Project authors
+	Dustin Machi
+	Kris Zyp
+-------------------------------------------------------------------------------
+Project description
+
+jsonPath is a query system similar in idea to xpath, but for use against
+javascript objects.  This code is a port of the jsonPath code at 
+http://code.google.com/p/jsonpath/.  It was contributed under CLA by Stefan
+Goessner.  Thanks Stefan! 
+-------------------------------------------------------------------------------
+Dependencies:
+
+Dojo Core (package loader).
+-------------------------------------------------------------------------------
+Documentation
+
+Usage:
+
+var matches = dojox.jsonPath.query(objectToQuery, jsonPathExpresson)
+
+Expressions:
+
+	$			The Root Object
+	@			The current object/element
+	. or []			The child operator
+	..			Recursive descent
+	*			all objects
+	[]			subscript operator
+	[,]			Union operator
+	[start:end:step]	array slice operator
+	?()			applies a filter/script expression
+	()			script expresions
+
+	some examples:
+
+	Given the following test data set:
+
+	var json = 
+                  { "store": {
+                        "book": [ 
+                          { "category": "reference",
+                                "author": "Nigel Rees",
+                                "title": "Sayings of the Century",
+                                "price": 8.95
+                          },
+                          { "category": "fiction",
+                                "author": "Evelyn Waugh",
+                                "title": "Sword of Honour",
+                                "price": 12.99
+                          },
+                          { "category": "fiction",
+                                "author": "Herman Melville",
+                                "title": "Moby Dick",
+                                "isbn": "0-553-21311-3",
+                                "price": 8.99
+                          },
+                          { "category": "fiction",
+                                "author": "J. R. R. Tolkien",
+                                "title": "The Lord of the Rings",
+                                "isbn": "0-395-19395-8",
+                                "price": 22.99
+                          }
+                        ],
+                        "bicycle": {
+                          "color": "red",
+                          "price": 19.95
+                        }
+                  }
+                };
+
+	Here are some example queries and their output:
+
+   	$.store.book[*].author 
+	["Nigel Rees","Evelyn Waugh","Herman Melville","J. R. R. Tolkien"]
+
+	$..author
+	["Nigel Rees","Evelyn Waugh","Herman Melville","J. R. R. Tolkien"]
+
+	$.store.*
+	[[{"category":"reference","author":"Nigel Rees","title":"Sayings of the Century","price":8.95},{"category":"fiction","author":"Evelyn Waugh","title":"Sword of Honour","price":12.99},{"category":"fiction","author":"Herman Melville","title":"Moby Dick","isbn":"0-553-21311-3","price":8.99},{"category":"fiction","author":"J. R. R. Tolkien","title":"The Lord of the Rings","isbn":"0-395-19395-8","price":22.99}],{"color":"red","price":19.95}]
+
+	$.store..price
+	[8.95,12.99,8.99,22.99,19.95]
+
+	$..book[(@.length-1)]
+	[{"category":"fiction","author":"J. R. R. Tolkien","title":"The Lord of the Rings","isbn":"0-395-19395-8","price":22.99}]
+
+	$..book[-1]
+	[{"category":"fiction","author":"J. R. R. Tolkien","title":"The Lord of the Rings","isbn":"0-395-19395-8","price":22.99}]
+
+	$..book[0,1]
+	[{"category":"reference","author":"Nigel Rees","title":"Sayings of the Century","price":8.95},{"category":"fiction","author":"Evelyn Waugh","title":"Sword of Honour","price":12.99}]
+	
+	$..book[:2]
+	[{"category":"reference","author":"Nigel Rees","title":"Sayings of the Century","price":8.95},{"category":"fiction","author":"Evelyn Waugh","title":"Sword of Honour","price":12.99}]
+
+	$..book[?(@.isbn)]
+	[{"category":"fiction","author":"Herman Melville","title":"Moby Dick","isbn":"0-553-21311-3","price":8.99},{"category":"fiction","author":"J. R. R. Tolkien","title":"The Lord of the Rings","isbn":"0-395-19395-8","price":22.99}]
+
+	$..book[?(@.price<10)]
+	[{"category":"reference","author":"Nigel Rees","title":"Sayings of the Century","price":8.95},{"category":"fiction","author":"Herman Melville","title":"Moby Dick","isbn":"0-553-21311-3","price":8.99}]
+
+	$..*
+	[{"book":[{"category":"reference","author":"Nigel Rees","title":"Sayings of the Century","price":8.95},{"category":"fiction","author":"Evelyn Waugh","title":"Sword of Honour","price":12.99},{"category":"fiction","author":"Herman Melville","title":"Moby Dick","isbn":"0-553-21311-3","price":8.99},{"category":"fiction","author":"J. R. R. Tolkien","title":"The Lord of the Rings","isbn":"0-395-19395-8","price":22.99}],"bicycle":{"color":"red","price":19.95}},[{"category":"reference","author":"Nigel Rees","title":"Sayings of the Century","price":8.95},{"category":"fiction","author":"Evelyn Waugh","title":"Sword of Honour","price":12.99},{"category":"fiction","author":"Herman Melville","title":"Moby Dick","isbn":"0-553-21311-3","price":8.99},{"category":"fiction","author":"J. R. R. Tolkien","title":"The Lord of the Rings","isbn":"0-395-19395-8","price":22.99}],{"color":"red","price":19.95},{"category":"reference","author":"Nigel Rees","title":"Sayings of the Century","price":8.95},{"category":"fiction","author":"Evelyn Waugh","title":"Sword of Honour","price":12.99},{"category":"fiction","author":"Herman Melville","title":"Moby Dick","isbn":"0-553-21311-3","price":8.99},{"category":"fiction","author":"J. R. R. Tolkien","title":"The Lord of the Rings","isbn":"0-395-19395-8","price":22.99},"reference","Nigel Rees","Sayings of the Century",8.95,"fiction","Evelyn Waugh","Sword of Honour",12.99,"fiction","Herman Melville","Moby Dick","0-553-21311-3",8.99,"fiction","J. R. R. Tolkien","The Lord of the Rings","0-395-19395-8",22.99,"red",19.95]
+
+
+-------------------------------------------------------------------------------
+Installation instructions
+
+Grab the following from the Dojo SVN Repository:
+http://svn.dojotoolkit.org/var/src/dojo/dojox/trunk/jsonPath
+
+Install into the following directory structure:
+/dojox/jsonPath/
+
+...which should be at the same level as your Dojo checkout.