ebnf-file-suffix-regexp

ebnf-file-suffix-regexp is a variable defined in `ebnf2ps.el'.
Its value is

".[Bb][Nn][Ff]$"

Documentation:
Specify file name suffix that contains EBNF.

See `ebnf-eps-directory' command.

You can customize this variable.

This variable was introduced, or its default value was changed, in version 20 of Emacs.