C-c C-f is a prefix key in a widely using latex-mode, replace to C-x C-'

[zarkone]

No description provided.

[zenozeng]

I think this should be a customizable variable, maybe use defcustom is better?

[zarkone]

You mean to replace in yafolding setup

(define-key global-map (kbd "C-'") 'yafolding)

with something like

(custom-set-variables '(......

?

[zenozeng]

defcustom is a Lisp macro.

(defcustom SYMBOL STANDARD DOC &rest ARGS)

Declare SYMBOL as a customizable variable.
SYMBOL is the variable name; it should not be quoted.
STANDARD is an expression specifying the variable's standard
value.  It should not be quoted.  It is evaluated once by
`defcustom', and the value is assigned to SYMBOL if the variable
is unbound.  The expression itself is also stored, so that
Customize can re-evaluate it later to get the standard value.
DOC is the variable documentation.

This macro uses `defvar' as a subroutine, which also marks the
variable as "special", so that it is always dynamically bound
even when `lexical-binding' is t.

Type C-h f defcustom for more infomation.