Variable: tags-table-format-functions
tags-table-format-functions is a variable defined in etags.el.gz.
Value
(etags-recognize-tags-table
tags-recognize-empty-tags-table)
Documentation
Hook to be called in a tags table buffer to identify the type of tags table.
The functions are called in order, with no arguments, until one returns non-nil. The function should make buffer-local bindings of the format-parsing tags function variables if successful.
Source Code
;; Defined in /usr/src/emacs/lisp/progmodes/etags.el.gz
;; Hooks for file formats.
(defvar tags-table-format-functions '(etags-recognize-tags-table
tags-recognize-empty-tags-table)
"Hook to be called in a tags table buffer to identify the type of tags table.
The functions are called in order, with no arguments,
until one returns non-nil. The function should make buffer-local bindings
of the format-parsing tags function variables if successful.")