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Documentation: feeds/rss_2.0.php

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feeds/rss_2.0.php - Provide news in the RSS 2.0 format

This script lists newest published articles, providing following information:

title - title of the article
link - absolute url to fetch the article
description - introduction of the particle, or the first part of the main text
content:encoded - article description (up to 500 words)
time - date and time of article last modification

[removed because of spammers] - author - last contributor to the article

category - label of the section from where the article is originated
image - absolute url to fetch a related image, if any
comments - absolute url to expose related comments for a human being

Also, several meta-links are provided to help client software to do its job correclty:

trackback:about - absolute url to fetch the article (=== link)
trackback:ping - absolute url to post links to the article
wfw:comment - absolute url to post a new comment
wfw:commentRss - absolute url to expose related comments as RSS feed

Basically, these meta-links mean that YACS fully support trackback and Comment API specifications.

If the geographical position of the server has been set through the configuration panel for skins, it is included into the feed as well.

Additionally, the provided XML links to a cascaded style sheet, enabling further rendering enhancements.

You will find below an excerpt of a real RSS 2.0 feed from Yahoo! News:

<?xml version="1.0" encoding="UTF-8"?>
<rss version="2.0">
<channel>
<title>Yahoo! News - Technology</title>
<link>http://news.yahoo.com/news?tmpl=index&cid=738</link>
<description>Yahoo! News - Technology</description>
<language>en-us</language>
<lastBuildDate>Sun, 19 Oct 2003 15:11:25 GMT</lastBuildDate>
<ttl>5</ttl>
<image>
<title>Yahoo! News</title>
<width>142</width>
<height>18</height>
<link>http://news.yahoo.com/</link>
<url>http://us.i1.yimg.com/us.yimg.com/i/us/nws/th/main_142.gif</url>
</image>
<item>
<title>Programs: 'Ghostmaster' Offers a Boo-Tiful Fright (Reuters)</title>
<link>http://us.rd.yahoo.com/dailynews/rss/738/*http://story.news.yahoo.com/news?tmpl=story2&u=/nm/20031018/tc_nm/column_programs_dc</link>
<guid isPermaLink="false">nm/20031018/column_programs_dc</guid>
<pubDate>Sat, 18 Oct 2003 11:57:39 GMT</pubDate>
<description>Reuters - Most spooky computer and
console games require players to fight off ghosts, goblins, and
poltergeists. But "Ghost Master" turns -- and sometimes upturns
-- the tables.</description>
</item>
...
<item>
<title>Apple/Analysts on the iTunes Music Store, iPod (MacCentral)</title>
<link>http://us.rd.yahoo.com/dailynews/rss/738/*http://story.news.yahoo.com/news?tmpl=story2&u=/mc/20031017/tc_mc/appleanalystsontheitunesmusicstoreipod</link>
<guid isPermaLink="false">mc/20031017/appleanalystsontheitunesmusicstoreipod</guid>
<pubDate>Fri, 17 Oct 2003 17:16:32 GMT</pubDate>
<description>MacCentral - Hell may have frozen over, as Apple's Web site says, but the battle for supremacy in the digital music distribution market is just heating up. With the release of iTunes Music Store for Windows, Apple is confident that they have the solution to beat the competition. With the help of the iPod digital music player, analysts agree that Apple has an edge.</description>
</item>
</channel>
</rss>

If following features are enabled, this script will use them:

compression - Through gzip, we have observed a shift from 4766 bytes to 1111 bytes, meaning one Ethernet frame rather than three
cache - Cache is supported through ETag and by setting Content-Length; Also, Cache-Control enables caching for some time, even through HTTPS

This script is a reference file of this system.

Voir aussi:

Licence: GNU Lesser General Public License

Auteurs:

Bernard Paques bernard.paques@bigfoot.com

Reste à faire:

add geocoded information http://developer.yahoo.com/weather/