Specifies an url for the author of a page.
+* description
+
+ Specifies a "description" of the page. You could use this to provide
+ a summary, for example, to be picked up by the [[map]] plugin.
+
* permalink
Specifies a permanent link to the page, if different than the page
contents. In particular, it does not check the values against the set of
valid values but serves whatever you pass it.
-* uuid
-
- Specifies a globally unique ID for a page. This ID will be used,
- rather than the page url, in RSS and Atom feeds.
+* guid
- The uuid can either be a literal uuid (ie,
- "ec248d04-f347-4eb8-92b6-671b15d36980"), or it can be an alternative URl
- for the page.
+ Specifies a globally unique ID for a page. This guid should be a URI
+ (in particular, it can be `urn:uuid:` followed by a UUID, as per
+ [[!rfc 4122]]), and it will be used to identify the page's entry in RSS
+ and Atom feeds. If not given, the default is to use the page's URL as its
+ guid.
- This is mostly useful when a page's feed has moved, to keep the IDs for
+ This is mostly useful when a page has moved, to keep the guids for
pages unchanged and
- [[avoid_flooding_aggregators|howto_avoid_flooding_aggregators]].
+ [[avoid_flooding_aggregators|tips/howto_avoid_flooding_aggregators]].
If the field is not one of the above predefined fields, the metadata will be
written to the generated html page as a <meta> header. However, this