Notation (W3C DOM Core object)
| Version | Depr. | Parent |
|---|---|---|
| DOM1 | No | Node |
| IE5.5+ | FF3 | SA3 | OP9+ |
|---|---|---|---|
| Partial | None | None | Partial |
Example
<!NOTATION logo SYSTEM "image/gif">
The
example above shows a notation with the name logo, that
refers to a system resource with the mime-type
image/gif. This notation can then be used as part of an
entity declaration, to refer to an external GIF image:
<!ENTITY sitepoint SYSTEM
"http://www.sitepoint.com/images/new/logo.gif"
NDATA logo>
We can get a reference to the notations
declared in the DTD from the notations
collection, which itself is a property of the doctype:
var notations = document.doctype.notations;And
then retrieve individual items from that collection using the getNamedItem method:
notations.getNamedItem('sitepoint')Description
The
Notation interface inherits from Node, and represents a notation declared in the DTD.
Notations are typically used to declare the format of an unparsed entity;
they can also be used for formal declaration of processing instruction
targets. The content of an unparsed entity does not have to be text, it
can be other kinds of data, such as an image.
Notation nodes are read-only, and are not part
of the DOM tree, hence they have no parent and cannot have children.
Compatibility
| Internet Explorer | Firefox | Safari | Opera | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 5.5 | 6.0 | 7.0 | 1.5 | 2.0 | 3.0 | 1.3 | 2.0 | 3.0 | 9.0 | 9.5 |
| Partial | Partial | Partial | None | None | None | None | None | None | Partial | Partial |
Only
Internet Explorer in XML and Opera
in XHTML mode or XML1 provide data for the notations collection; in
Firefox, Safari 1.3 and 2 in XHTML
mode or XML and Safari 3 the
collection is null; in other environments the doctype itself is null or
undefined (see DocumentType for details).
Internet Explorer in XML doesn't support
associative array syntax for retrieving members by name (eg.
notations['sitepoint']); it only supports reference by
index (eg. notations[0]) or using the getNamedItem method of NamedNodeMap (eg.
notations.getNamedItem('sitepoint')).
In this Section
Footnotes
1 On XHTML pages served as
application/xhtml+xml.
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