Variable: char-fold-symmetric
char-fold-symmetric is a customizable variable defined in
char-fold.el.gz.
Value
nil
Documentation
Non-nil means char-fold searching treats equivalent chars the same.
That is, use of any of a set of char-fold equivalent chars in a search string finds any of them in the text being searched.
If nil then only the "base" or "canonical" char of the set matches any of them. The others match only themselves, even when char-folding is turned on.
This variable was added, or its default value changed, in Emacs 27.1.
Probably introduced at or before Emacs version 27.1.
Source Code
;; Defined in /usr/src/emacs/lisp/char-fold.el.gz
(defcustom char-fold-symmetric char-fold--default-symmetric
"Non-nil means char-fold searching treats equivalent chars the same.
That is, use of any of a set of char-fold equivalent chars in a search
string finds any of them in the text being searched.
If nil then only the \"base\" or \"canonical\" char of the set matches
any of them. The others match only themselves, even when char-folding
is turned on."
:type 'boolean
:initialize #'custom-initialize-default
:set (lambda (sym val)
(custom-set-default sym val)
(char-fold-update-table))
:group 'isearch
:version "27.1")