Variable: hs-c-start-regexp
hs-c-start-regexp is a buffer-local variable defined in
hideshow.el.gz.
Documentation
Regexp for beginning of comments.
Differs from mode-specific comment regexps in that surrounding whitespace is stripped.
If not bound, hideshow will use current comment-start value without
any trailing whitespace.
Probably introduced at or before Emacs version 31.1.
Source Code
;; Defined in /usr/src/emacs/lisp/progmodes/hideshow.el.gz
(defvar-local hs-c-start-regexp nil
"Regexp for beginning of comments.
Differs from mode-specific comment regexps in that surrounding
whitespace is stripped.
If not bound, hideshow will use current `comment-start' value without
any trailing whitespace.")