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== Actions ==

Actions are tools that work on a page or the whole wiki, but unlike macros do not add ''to'' the page content when viewing a page, but work ''on'' that page content. They either produce some output based on page contents (navigational actions like searching) or implement functions that are not related to viewing a page (like deleting or renaming a page).

There is a set of system-defined actions, which includes page editing; you can extend the set of known actions by your own ones. See HelpForDevelopers for more on that.

The following actions are added to the list of user-defined extension actions at the bottom of each page (or in the "More actions" menu). This happens to any mixed-case extension, for other actions (all lower-case) see the list further down this page. Some of these action might not be available for your wiki site.
 * `AttachFile`: attach files to a page, see /AttachFile for more details.
  * This action is not granted if you are not logged in.
 * `DeletePage`: Delete a page, after you confirmed it; deletion means a final backup copy is created and only then the page is deleted, i.e. you can ''revive'' the page later on (as long as the backups are not physically deleted).
  * This action is not granted if you are not logged in.
 * `RenamePage`: Rename a page, after you confirmed it.
 * `LikePages`: list pages whose title starts or ends with the same MeatBall:WikiWord as the current page title.
 * `LocalSiteMap`: show nearby links of the current page, i.e. list all referred-to pages, and in turn their references, to a certain limited depth.
 * `SpellCheck`: call the spell checker for the current page; see HelpOnSpellCheck for more.

The following is a list of ''internal'' actions that are used to implement the various icons and links at the top and bottom of pages, or supplement certain macros.
 * `titleindex`: Implements the listing of all page names as text (append `?action=titleindex` to your wiki address) or XML (`?action=titleindex&mimetype=text/xml`); the main use of this action is to enable MeatBall:MetaWiki.
 * `fullsearch`: this action is triggered by clicking on the "Search Text" button of the `FullSearch` macro (`?action=fullsearch&value=HelpOnActions`).
 * `titlesearch`: this action is triggered by clicking on the "Search Titles" button of the `TitleSearch` macro (`?action=titlesearch&value=HelpOnActions`).
 * `inlinesearch`: this implements the inline search for the form fields at the bottom of each page (note that this uses POST requests, so you won't normally see this action in URLs).
 * `highlight`: highlight the search word when you click on a link in a search result list.
 * `diff`: display differences between page revisions.
 * `info`: show meta-data on a page.
 * `recall`: display an older revision of a page.
 * `show`: display a page (the default action).
 * `refresh`: refresh the cached version of a page (currently only used on XSLT-formatted pages).
 * `print`: show the print-view of a page, which omits the navigational items from the display view.
 * `edit`: edit this page.
 * `savepage`: save this page (do not ever use this manually).
 * `subscribe`: subscribe to a page.
 * `userform`: save user preferences.
 * `bookmark`: set bookmark for RecentChanges.
 * `raw`: send the raw wiki markup as text/plain (e.g. for backup purposes via wget); `SystemInfo?action=raw` will show the markup of SystemInfo.
 * `format`: emit specially formatted views of a page. Parameter `mimetype` specifies the wanted mime-type.
  * You can use it to generate '''DocBook''' markup from your pages. Just append `?action=format&mimetype=xml/docbook` to the address. Note that you need to install PyXML to use it.
 * `rss_rc`: generate a RSS feed of RecentChanges.
 * `chart`: display charts.
 * `export`: export the wiki content. ''[experimental]''
 * `content`: for transclusion into static web pages, this action emits the pure page content, without any <html>, <head>, or <body> tags.
 * `links`: generates a list of all pages and the links on them, just like MeatBall:LinkDatabase.
 * `xmlrpc`: Wiki XML-RPC interface, see MeatBall:XmlRpcToWiki.
 * `revert`: revert to an older version of the page.