Variable: sgml-tags-invisible-hook
sgml-tags-invisible-hook is a customizable variable defined in
sgml-mode.el.gz.
Value
nil
Documentation
Hook run after entering or leaving sgml-tags-invisible(var)/sgml-tags-invisible(fun).
No problems result if this variable is not bound.
add-hook automatically binds it. (This is true for all hook variables.)
Source Code
;; Defined in /usr/src/emacs/lisp/textmodes/sgml-mode.el.gz