Variable: org-todo-regexp
org-todo-regexp is a buffer-local variable defined in org.el.gz.
Documentation
Matches any of the TODO state keywords.
Since TODO keywords are case-sensitive, case-fold-search is
expected to be bound to nil when matching against this regexp.
Source Code
;; Defined in /usr/src/emacs/lisp/org/org.el.gz
;;; Variables for pre-computed regular expressions, all buffer local
(defvar-local org-todo-regexp nil
"Matches any of the TODO state keywords.
Since TODO keywords are case-sensitive, `case-fold-search' is
expected to be bound to nil when matching against this regexp.")