find-tag-default-as-regexp

find-tag-default-as-regexp is a compiled Lisp function in `subr.el'.

(find-tag-default-as-regexp)

Return regexp that matches the default tag at point.
If there is no tag at point, return nil.

When in a major mode that does not provide its own
`find-tag-default-function', return a regexp that matches the
symbol at point exactly.