Tree - killer JSON, XML, YAML and their ilk

Hello, my name is Dmitry Karlovsky and I ... thought a lot. I thought about what was wrong with XML and why it was recently traded for stupid JSON. The result of these inventions was the new data format standard , which incorporated the flexibility of XML, the simplicity of JSON and the visibility of YAML.

Tree is a two-dimensional binary-safe format for representing structured data. Easily readable by both human and computer. Simple, compact, fast, expressive and extensible. Comparing it with other popular formats, you can make the following comparison table:

More is better	Json	XML	Yaml	INI	Tree
Human comprehension	3	one	four	five	five
Easy editing	3	one	four	five	five
Arbitrary hierarchy	3	3	3	one	five
Ease of implementation	3	2	one	five	five
Speed ​​parsing / serialization	3	one	one	five	five
Serialized Size	3	one	four	five	five
Threading support	0	0	five	five	five
Binary security	3	0	0	0	five
Prevalence	five	five	3	3	0
Editors support	five	five	3	five	one
Support programming languages	five	five	3	five	one

Format Comparison

Human comprehension

JSON and XML allow arbitrary formatting of output with spaces and line breaks. However, often for various reasons (the main ones are smaller, easier to implement) they are formatted in one line and then they become extremely unreadable.

{ "users" : [ { "name" : "Alice" , age : 20 } ] }

<users><user><name>Alice</name><age>20</age></user></users>

, JSON — , escape- .

{ "description" : "Hello, Alice!\nHow do you do?" }

, XML , « », «» .

<greeting>
    Hello, <b>Alice</b>!<br/>
    How do you do?
</greeting>

<greeting>
    Hello, <a href="http://example.org/user/alice?ref=xe3o7rubvo283xb">Alice</a>!<br/>
    How do you do?
</greeting>

« », escape-. XML . Tree, , .

<title>"Rock&roll" = life</title>

{ "title" : "\"Rock&roll\" = life" }

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: github.com/nin-jin/tree.d/tree/master/formats

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function getEl( id ){
	return document.getElementById( id )
}

, AST - :

[
	{ "function": {
		"name": "getEl",
		"args": [ "id" ],
		"body": [
			{ "return": [
				{ "get": "document" },
				{ "call": {
					"name": "getElementById",
					"args": [
					 	{ "get": "id" }
					]
				}}
			]}
		]
	}}
]

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[ [ "function",
    "getEl",
    [ "id" ],
    [ "return",
      [ [ "get",
          "document" ],
        [ "call",
          "getElementById",
          [ "get", "id" ]
        ]
      ]
    ]
  ]
]

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:

    string data = cast(string) read( "path/to/file.tree" ); // read from file
    Tree tree = Tree.parse( data , "http://example.org/source/uri" ); // parse to tree

:

    Tree userNames = tree.select( "user name" ); // returns name-nodes
    Tree userNamesValues = tree.select( "user name " ); // returns value-nodes

:

    string name = userNames[0].name; // get node name
    string stringValue = userNames[0].value; // get value as string with "\n" as delimiter
    uint intValue =  userNames[0].value!uint; // get value converted from string to another type

    Tree[] childs = tree.childs; // get child nodes array
    string uri = tree.uri; // get uri like "http://example.org/source/uri#3:2"

:

    string data = tree.toString(); // returns string representation of tree
    tree.pipe( stdout ); // prints tree to output buffer

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, Alex222 SynWrite

Tree. . . . — . .

2016-09-11

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:

! City : table
	ID : field
		type : int 11
		null : false
		unique : true
	Name : field
		type : char 35
		null : true
		unique : false
City
	ID : 1
	Name : \Kabul
City
	ID : 4079
	Name : \Rafah
City
	ID : 23023
	Name : \Moscow

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