Rss News fead Reader


ATOM

This name is used in the computer technology as an umbrella term for two so-called standards.
As First, the Atom syndication format that a platformindependent exchange for informations based on a XML format allows.

To the other, the Atom Publishing Protocol (APP, naturalized has itself AtomPub) was developed, apply to create and edit Web resources that are updated frequently on the base of simple HTML and XML formats.
Atom provides an easy way, to write, edit and circulate the websites and their content.
Atom was created out of the desire to combine the advantages of the different RSS formats in a new format and to add new elements.
Thereby the developers who were predominant the bloggers, designed the ASF especially to meet specific requirements of the webblogs and news sites.
The major proponents of Atom are organized in the Industry Association AtomEnabled Alliance.
The Syndikationsformat (ASF) is the most common implementation of the Atom standards.
This modern form of a newsletter would be the successor to RSS.
The current version of the Atom syndication format is the IETF Draft from 11 August 2005, which was approved by the IESG as a Proposed Standard in August 2005 and in December 2005 and was published as RFC 4287.
Thereby the atom has become an official Internet standard.
Most bigger feed suppliers already working at it to support the format.
The MIME type of atom is application / atom + xml.
The recycle of Informations in a standardized exchange format is called aggregation.
These aggregators detect automatically the presence of a new atom.
Each Atom input has its own unique ID.

Minimal Example:

<?xml version="1.0" encoding="utf-8"?>
<feed xmlns="http://www.w3.org/2005/Atom">
<author>
<name>Author of Weblog</name>
</author>
<title>Titel of Weblogs</title>
<id>urn:uuid:60a76c80-d399-11d9-b93C-0003939e0af6</id>
<updated>2003-12-14T10:20:09Z</updated>

<entry>
<title>Titel des Weblog-put down</title>
<link href="http://example.org/2003/12/13/atom-example"/>
<id>urn:uuid:1225c695-cfb8-4ebb-aaaa-80da344efa6a</id>
<updated>2003-12-13T18:30:02Z</updated>
<summary>Zusammenfassung des Weblog-put down</summary>
<content>text des Weblog-put down</content>
</entry>
</feed>


Different types of content
The main feature of Atom to RSS is the possibility, that it can be explicitly specified for the input supported elements, in what format the content are encoded.
In RSS 2.0 can, for example in the description-standing element of a plain text or HTML masked, without a manufacturing program know, that is precisely what it is.
Atom Calls for a clearness, that input supported elements receive a type attribute.

Secondary plain text and masked HTML it is possibly to embed directly the XHTML-Markup with namespace-input.
The XHTML is mainly reasonable in the content-element.

Example of pure text in the title element:

The type attribute can be omitted in this case, since the default text is value of the attribute.

Example of HTML in the summary element:

HTML own characters <,> and & are redefine with the entity references <,> and &. Alternatively, the contents in a CDATA section can be accommodated:

<summary type="html"> <[CDATA [Sample summary with
<strong> important text </ strong> ]]></ summary>

Example of the XHTML content-element:
<content type="xhtml" xml:base="http://example.org/">
<div xmlns="http://www.w3.org/1999/xhtml"
p> Example paragraph with <strong> important text </ strong> and a
<a href="example"> relative link </ a>. </ p>
</ div>
</ content>


The content element gets a div element from the XHTML namespace as a child. In that further can be XHTML elements are directly listed.


 

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