Variable: semantic-grammar-file-regexp
semantic-grammar-file-regexp is a customizable variable defined in
grammar.el.gz.
Value
"\\.[wb]y\\'"
Documentation
Regexp which matches grammar source files.
Source Code
;; Defined in /usr/src/emacs/lisp/cedet/semantic/grammar.el.gz
;;; Generation of the grammar support file.
;;
(defcustom semantic-grammar-file-regexp "\\.[wb]y\\'"
"Regexp which matches grammar source files."
:group 'semantic
:type 'regexp)