ffap-url-regexp

ffap-url-regexp is a variable defined in `ffap.el'.
Its value is

"\\(news\\(post\\)?:\\|mailto:\\|file:\\|\\(ftp\\|https?\\|telnet\\|gopher\\|www\\|wais\\)://\\)"

Documentation:
Regexp matching the beginning of a URI, for ffap.
If the value is nil, disable URL-matching features in ffap.