add underlay files for listdirectives

[ikiwiki.git] / underlays / basewiki / directive / tag.mdwn

diff --git a/underlays/basewiki/directive/tag.mdwn b/underlays/basewiki/directive/tag.mdwn
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+The `tag` and `taglink` directives are supplied by the [[!iki plugins/tag]] plugin.
+
+These directives allows tagging pages. List tags as follows:
+
+       \[[!tag tech life linux]]
+
+The tags work the same as if you had put a (hidden) [[ikiwiki/WikiLink]] on
+the page for each tag, so you can use a [[ikiwiki/PageSpec]] match all
+pages that are tagged with a given tag, for example. The tags will also
+show up on blog entries and at the bottom of the tagged pages, as well as
+in RSS and Atom feeds.
+
+If you want a visible [[ikiwiki/WikiLink]] along with the tag, use taglink
+instead:
+
+       \[[!taglink foo]]
+       \[[!taglink tagged_as_foo|foo]]
+
+This plugin has a configuration option. Set --tagbase=tags and links to tags
+will be located under the specified base page. If ikiwiki is configured
+this way, then the example above actually tags the page with the tags
+tags/tech, tags/life, and tags/linux. This is a useful way to avoid
+having to write the full path to tags, if you want to keep them grouped
+together out of the way.
+
+If you want to override the tagbase for a particular tag, you can use
+something like this:
+
+       \[[!tag ./foo]]
+       \[[!taglink /foo]]
+
+[[!if test="enabled(tag)" then="""
+This wiki has the tag plugin enabled, so you'll see a note below that this
+page is tagged with the "tags" tag.
+"""]]