Variable: todo-date-string-start
todo-date-string-start is a variable defined in todo-mode.el.gz.
Value
"^\\(\\[\\|&\\)?"
Documentation
Regular expression matching part of item header before the date.
Source Code
;; Defined in /usr/src/emacs/lisp/calendar/todo-mode.el.gz
;; By itself this matches anything, because of the `?'; however, it's only
;; used in the context of `todo-date-pattern' (but Emacs Lisp lacks
;; lookahead).
(defconst todo-date-string-start
(concat "^\\(" (regexp-quote todo-nondiary-start) "\\|"
(regexp-quote diary-nonmarking-symbol) "\\)?")
"Regular expression matching part of item header before the date.")