Variable: org-heading-keyword-regexp-format
org-heading-keyword-regexp-format is a variable defined in org.el.gz.
Value
"^\\(\\*+\\)\\(?: +%s\\)\\(?: +\\(.*?\\)\\)?[ ]*$"
Documentation
format string for a regexp matching a headline with some keyword.
This regexp will match the headline of any node which has the exact keyword that is put into the format. The keyword isn't in any group by default, but the stars and the body are.
Source Code
;; Defined in /usr/src/emacs/lisp/org/org.el.gz
;;;; Headline
(defconst org-heading-keyword-regexp-format
"^\\(\\*+\\)\\(?: +%s\\)\\(?: +\\(.*?\\)\\)?[ \t]*$"
"`format' string for a regexp matching a headline with some keyword.
This regexp will match the headline of any node which has the
exact keyword that is put into the format. The keyword isn't in
any group by default, but the stars and the body are.")