%html-pubid%
Name
%html-pubid% -- What public ID are you declaring your HTML compliant with?
Description
The public ID used in output HTML files.  If #f, then no public ID
is produced.  If both this and %html-sysid% are #f, then no
doctype declaration is produced.
Source Code
(define %html-pubid%
  ;; What public ID are you declaring your HTML compliant with?
  (if %html40%
      "-//W3C//DTD HTML 4.01 Transitional//EN"
      #f))