(2)For this purpose “author”, “editor” and “publisher” have the following meanings, which are further explained in subsection (3)—
“author” means the originator of the statement, but does not include a person who did not intend that his statement be published at all;
“editor” means a person having editorial or equivalent responsibility for the content of the statement or the decision to publish it; and
“publisher” means a commercial publisher, that is, a person whose business is issuing material to the public, or a section of the public, who issues material containing the statement in the course of that business.