Спецификация Document Object Model (DOM) Level 3 Core

Document Object Model (DOM) Level 3 Core Specification

What is the Document Object Model?

/Editors/:
Philippe Le Hégaret, W3C
Lauren Wood, SoftQuad Software Inc. (for DOM Level 2)
Jonathan Robie, Texcel (for DOM Level 1)

Introduction

The Document Object Model (DOM) is an application programming interface
(API <#glossary-dt-API>) for valid HTML <#glossary-dt-HTML> and
well-formed XML <#glossary-dt-XML> documents. It defines the logical
structure of documents and the way a document is accessed and
manipulated. In the DOM specification, the term "document" is used in
the broad sense - increasingly, XML is being used as a way of
representing many different kinds of information that may be stored in
diverse systems, and much of this would traditionally be seen as data
rather than as documents. Nevertheless, XML presents this data as
documents, and the DOM may be used to manage this data.

With the Document Object Model, programmers can build documents,
navigate their structure, and add, modify, or delete elements and
content. Anything found in an HTML or XML document can be accessed,
changed, deleted, or added using the Document Object Model, with a few
exceptions - in particular, the DOM interfaces <#glossary-dt-interface>
for the XML internal and external subsets have not yet been specified.

As a W3C specification, one important objective for the Document Object
Model is to provide a standard programming interface that can be used in
a wide variety of environments and applications
<#glossary-dt-application>. The DOM is designed to be used with any
programming language. In order to provide a precise,
language-independent specification of the DOM interfaces, we have chosen
to define the specifications in Object Management Group (OMG) IDL [OMG
IDL <#references-OMGIDL>], as defined in the CORBA 2.3.1 specification
[CORBA <#references-CORBA>]. In addition to the OMG IDL specification,
we provide language bindings <#glossary-dt-lang-binding> for Java [Java
<#references-Java>] and ECMAScript [ECMAScript <#references-ECMAScript>]
(an industry-standard scripting language based on JavaScript [JavaScript
<#references-JavaScript>] and JScript [JScript <#references-JScript>]).
Because of language binding restrictions, a mapping has to be applied
between the OMG IDL and the programming language in used. For example,
while the DOM uses IDL attributes in the definition of interfaces, Java
does not allow interfaces to contain attributes: