* Reorganised the doc wiki's todo/* pages, using a link/tag to flag

* Allow pagetemplate plugins to override *anything* in the template.
* Add a meta plugin, which allows specifying various metadata about pages,
  like license and author. It also allows for inserting html link and meta
  tags into html, overriding the title, and adding hidden WikiLinks, which
  can be useful when using link-based globbing for page categorisation.
* Remove preprocessor directives from inlined pages.
* Allow simple preprocessor directive values to be specified w/o quotes.

1 files changed, 18 insertions, 0 deletions

diff --git a/doc/tags.mdwn b/doc/tags.mdwn
new file mode 100644
index 000000000..fd2315f88
--- /dev/null
+++ b/doc/tags.mdwn
@@ -0,0 +1,18 @@
+While ikiwiki supports hierarchically categorising pages by creating
+[[SubPage]]s, that's often not flexible enough, and it can also be useful
+to tag pages in various non-hierarchical ways.
+
+Since this is a wiki, tagging is just a form of linking. For example, since
+this page links to [[features]], it can be considered to have something to
+do with ikiwiki's features. If you want to put pages into a category, the
+typical wiki way to do so is to create a "CategoryFoo" page and link pages
+in the category to it. That is just another form of tagging.
+
+Sometimes you may want to tag a page without putting a visible link on it.
+The [[meta_plugin|plugins/meta]] allows you to do so, like this:
+
+	\\[[meta link=mytag]]
+
+One way to use these tags is to create a [[blog]] of pages that have a
+particular set of tags. [[Plugins]] can be written to do anything else with
+tags that you might desire.