Variable: Info-menu-entry-name-re
Info-menu-entry-name-re is a variable defined in info.el.gz.
Value
"\\(?:[^:]\\|:[^:,.;() \n]\\)*"
Documentation
Regexp that matches a menu entry name up to but not including the colon.
Because of ambiguities, this should be concatenated with something like
: and Info-following-node-name-re.
Source Code
;; Defined in /usr/src/emacs/lisp/info.el.gz
(defconst Info-menu-entry-name-re "\\(?:[^:]\\|:[^:,.;() \t\n]\\)*"
;; We allow newline because this is also used in Info-follow-reference,
;; where the xref name might be wrapped over two lines.
"Regexp that matches a menu entry name up to but not including the colon.
Because of ambiguities, this should be concatenated with something like
`:' and `Info-following-node-name-re'.")