jsencode

An implementation for encoding typed JavaScript objects, similar to BEncode

Example

var JSEncoder = require('jsencode');
var Foo = require('foo');
var encoder = new JSEncoder({types:[Foo]});  // or, encoder.registerTypes(Foo, Bar, ...);
 
encoder.encode("foo"); // returns "3:foo"
encoder.encode({foo: "bar"}); // returns "{3:foo3:bar}"
encoder.encode(new Foo()); // returns "<3:Foo>"
 
encoder.decode("3:foo"); // returns "foo"
encoder.decode("{3:foo3:bar}"); // returns {foo: "bar"}
encoder.decode("<3:Foo>"); // returns Foo() instance

Options

types - specify a list of type constructors to register for deserializing Objects

includePrivateFields - allows exclusion of fields that start with '_'

ignoreUnregisteredTypes - ignore unregistered types, deserializing it as a null value instead

Encoding

Any

any := <string> | <number> | <boolean> | <dictionary> | <object> | <array> | <null>

Undefined

undefined := 'u'

Null

null := 'n'

String

string := <length> ':' <value>

length = any valid Number value that is an integer >= 0

value = any utf-8 encoded string value

Number

number := '(' <value> ')'

value = any valid Number value

Boolean

boolean := 't' | 'f'

Array

array := '[' <values> ']'

values := (<any>)*

Dictionary (Object with constructor Object)

dictionary := '{' <string-value-pairs> '}'

string-value-pairs := (string-value-pair)*

string-value-pair := <string><any>

Object (Object with registered constructor Function)

object := '<' <type> <string-value-pairs> '>'

type := <string>

string-value-pairs := (string-value-pair)*

string-value-pair := <string><any>