The `if` directive is supplied by the [[!iki plugins/conditional
desc=conditional]] plugin.

With this directive, you can make text be conditionally displayed on a
page.  For example:

[[!if test="enabled(smiley)"
     then="Smiley-udvidelsen er aktiveret :-)"
     else="Ingen smiley-udvidelse her..."]]

If the specified `test` succeeds, the `then` text will be displayed,
otherwise the `else` text will be displayed. The `else` part is optional.

Værdierne `then` og `else` kan indeholde enhver opmærkning som ville være
tilladt på wikisiden udenfor skabelonen. Trippel-citering af værdien
tillader endda at bruge citering som del af værdien.

The `test` is a [[ikiwiki/PageSpec]]; if it matches any page in the wiki
then it succeeds. So you can do things like testing for the existence of a
page or pages, testing to see if any pages were created in a given month,
and so on.

If you want the [[ikiwiki/PageSpec]] to only match against the page that
contains the conditional, rather than matching against all pages in the
wiki, set the "all" parameter to "no".

I et `if`-direktiv udvides den normale [[ikiwiki/PageSpec]]-syntaks med
følgende yderligere tests:

* enabled(udvielse)

  Tests whether the specified plugin is enabled.

* sourcepage(glob)

  Tests whether the glob matches the name of the page that contains the
  conditional.

* destpage(glob)

  Tests whether the glob matches the name of the page that is being built.
  That might be different than the name of the page that contains the
  conditional, if it's being inlined into another page.

* included()

  Tests whether the page is being included onto another page, for example
  via [[inline]] or [[map]].  Note that pages inserted into other pages
  via [[template]] are not matched here.

[[!meta robots="noindex, follow"]]
