Wireshark-bugs: [Wireshark-bugs] [Bug 5561] Invalid RSS feed format for Wireshark newsgroups.
Date: Mon, 10 Jan 2011 03:41:16 -0800 (PST)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=5561

--- Comment #1 from Jurko Gospodnetić <[email protected]> 2011-01-10 03:41:14 PST ---
  Additional background information from Guy Harris as posted on the Wireshark
user mailing list:

In particular, the spec:

    http://www.rssboard.org/rss-specification

says that the "Link" in "isPermaLink" is key here:

    <guid> is an optional sub-element of <item>.

    guid stands for globally unique identifier. It's a string that uniquely
identifies the item. When present, an aggregator may choose to use this string
to determine if an item is new.

        <guid>http://some.server.com/weblogItem3207</guid>

    There are no rules for the syntax of a guid. Aggregators must view them as
a string. It's up to the source of the feed to establish the uniqueness of the
string.

    If the guid element has an attribute named isPermaLink with a value of
true, the reader may assume that it is a permalink to the item, that is, a url
that can be opened in a Web browser, that points to the full item described by
the <item> element. An example:

        <guid
isPermaLink="true">http://inessential.com/2002/09/01.php#a2</guid>

    isPermaLink is optional, its default value is true. If its value is false,
the guid may not be assumed to be a url, or a url to anything in particular.

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