JSPWiki has many variables, that can be inserted on pages on-the-fly.  See TextFormattingRules how it's done.

applicationname

This is the name of this Wiki.  It has been set by the administrator in "jspwiki.properties". This Wiki is called applicationname.

baseurl

The base URL address for this wiki.

encoding

Describes the character encoding used in this Wiki. An encoding of "UTF-8" means that the Wiki accepts any character, including Chinese, Japanese, etc.  Encoding "ISO-8859-1" means that only western languages are supported.  This wiki uses the encoding encoding.

inlinedimages

Lets you know which image types are being inlined.

interwikilinks

Writes HTML code for supported InterWiki links.

jspwikiversion

Inserts the version number of the JSPWiki engine.  For example, this version is jspwikiversion.

uptime

Inserts the amount of time since this Wiki has been last restarted.  This wiki has been up for uptime.

pagename

Inserts the current page name.  Example: This page is called pagename.

pageprovider

The current PageProvider.

pageproviderdescription

A verbose, HTML description about the currently used page provider.

totalpages

The total number of pages available in this Wiki.

Inserting JSPWiki properties

You can also access some of the JSPWiki properties (that have been defined by the site maintainer) by using their property names directly.  See SystemInfo for an example.

Note that some properties might not be accessible due to security reasons.