Variable: parse-sexp-ignore-comments
parse-sexp-ignore-comments is a customizable variable defined in
syntax.c.
Documentation
Non-nil means forward-sexp, etc., should treat comments as whitespace.
Source Code
// Defined in /usr/src/emacs/src/syntax.c
DEFVAR_BOOL ("parse-sexp-ignore-comments", parse_sexp_ignore_comments,
doc: /* Non-nil means `forward-sexp', etc., should treat comments as whitespace. */);