$file: file object that will be used to create the image
&$params: 2-D array of parameters
+'ParserSectionCreate': Called each time the parser creates a document section
+from wikitext. Use this to apply per-section modifications to HTML (like
+wrapping the section in a DIV). Caveat: DIVs are valid wikitext, and a DIV
+can begin in one section and end in another. Make sure your code can handle
+that case gracefully. See the EditSectionClearerLink extension for an
+example.
+$this: the calling Parser instance
+$section: the section number, zero-based, but section 0 is usually empty
+&$sectionContent: ref to the content of the section. modify this.
+$showEditLinks: boolean describing whether this section has an edit link
+
'ParserTestParser': called when creating a new instance of Parser in
maintenance/parserTests.inc
$parser: Parser object created