ParserOutput object.
&$output: ParserOutput, to manipulate or replace
+'ContentAlterParserOutput': Modify parser output for a given content object.
+Called by Content::getParserOutput after parsing has finished. Can be used
+for changes that depend on the result of the parsing but have to be done
+before LinksUpdate is called (such as adding tracking categories based on
+the rendered HTML).
+$content: The Content to render
+$title: Title of the page, as context
+$parserOutput: ParserOutput to manipulate
+
'ConvertContent': Called by AbstractContent::convert when a conversion to another
content model is requested.
$content: The Content object to be converted.
$rev: Revision object
&$links: Array of HTML links
+'HTMLFileCache::useFileCache': Override whether a page should be cached in file
+cache.
+$context: An IContextSource object with information about the request being served.
+
'ImageBeforeProduceHTML': Called before producing the HTML created by a wiki
image insertion. You can skip the default logic entirely by returning false, or
just modify a few things using call-by-reference.
&$titleArray: set this to an object to override the default object returned
$res: database result used to create the object
+'TitleExists': Called when determining whether a page exists at a given title.
+$title: The title being tested.
+&$exists: Whether the title exists.
+
'TitleQuickPermissions': Called from Title::checkQuickPermissions to add to
or override the quick permissions check.
$title: The Title object being accessed