TWiki variable defined or not %IF{"defined WIKINAME" then="WIKINAME is defined" else="WIKINAME is not defined"}% You are %IF{ "$ WIKINAME='TWikiGuest' and not defined OPEN_DAY" then="not" }% allowed to %IF{ "context view" then="view" else="edit"}% this TWiki today. URL parameter %IF{ "defined search" then="Search: %URLPARAM{search}%" else="No search passed in"}% Configuration item set or not %IF{ "{AntiSpam}{HideUserDetails}" then="User details are hidden" }% url param t is %IF{ "0 < $ t and $ t < 1000" then="in" else="out of"}% range. Text comparison %IF{ "$'URLPARAM{scope}'='text'" then="Plain text search" }% Configuration items are defined in configure. You cannot see the value of a configuration item, you can only see if the item is set or not. Context identifiers are used in TWiki to label various stages of the rendering process. They are especially useful for skin authors to find out where they are in the rendering process. The following context identifiers are available:
In addition there is a context identifier for each enabled plugin; for example, if
The
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