-* `%IkiWiki::links` lists the names of each page
- that a page links to, in an array reference.
-* `%IkiWiki::pagemtime` contains the last modification time of each page
-* `%IkiWiki::pagectime` contains the creation time of each page
-* `%IkiWiki::renderedfiles` contains the name of the file rendered by a
- page
-* `%IkiWiki::pagesources` contains the name of the source file for a page.
-* `%IkiWiki::depends` contains a [[PageSpec]] that is used to specify other
- pages that a page depends on. If one of its dependencies is updated, the
- page will also get rebuilt.
-
- Many plugins will need to add dependencies to this hash; the best way to do
- it is by using the IkiWiki::add_depends function, which takes as its
- parameters the page name and a [[PageSpec]] of dependencies to add.
-* `%IkiWiki::forcerebuild` any pages set as the keys to this hash will be
- treated as if they're modified and rebuilt.
-
-# A note on generating html links
+* `%links` lists the names of each page that a page links to, in an array
+ reference.
+* `%renderedfiles` lists names of the files rendered by a page, in an array
+ reference.
+* `%pagesources` contains the name of the source file for a page.
+
+Also, the %IkiWiki::version variable contains the version number for the
+ikiwiki program.
+
+### Library functions
+
+#### `hook(@)`
+
+Hook into ikiwiki's processing. See the discussion of hooks above.
+
+Note that in addition to the named parameters described above, a parameter
+named no_override is supported, If it's set to a true value, then this hook
+will not override any existing hook with the same id. This is useful if
+the id can be controled by the user.
+
+#### `debug($)`
+
+Logs a debugging message. These are supressed unless verbose mode is turned
+on.
+
+#### `error($;$)`
+
+Aborts with an error message. If the second parameter is passed, it is a
+function that is called after the error message is printed, to do any final
+cleanup.
+
+Note that while any plugin can use this for a fatal error, plugins should
+try to avoid dying on bad input, as that will halt the entire wiki build
+and make the wiki unusable. So for example, if a [[PreProcessorDirective]]
+is passed bad parameters, it's better to return an error message, which can
+appear on the wiki page, rather than calling error().
+
+#### `template($;@)`
+
+Creates and returns a [[cpan HTML::Template]] object. The first parameter
+is the name of the file in the template directory. The optional remaining
+parameters are passed to HTML::Template->new.
+
+#### `htmlpage($)`
+
+Passed a page name, returns the base name that will be used for a the html
+page created from it. (Ie, it appends ".html".)
+
+#### `add_depends($$)`
+
+Makes the specified page depend on the specified [[PageSpec]].
+
+#### `pagespec_match($$;$)`
+
+Passed a page name, a [[PageSpec]], and the location the [[PageSpec]] should
+be matched against, returns true if the [[PageSpec]] matches the page. (If
+the third parameter is not passed, relative PageSpecs will match relative to
+the top of the wiki.)
+
+#### `bestlink($$)`
+
+Given a page and the text of a link on the page, determine which
+existing page that link best points to. Prefers pages under a
+subdirectory with the same name as the source page, failing that
+goes down the directory tree to the base looking for matching
+pages, as described in [[SubPage/LinkingRules]].
+
+#### `htmllink($$$;$$$)`