character sequences}.
@kindex M-s ' @r{(Incremental Search)}
-@findex isearch-toggle-character-fold
+@findex isearch-toggle-char-fold
Generally, search commands in Emacs do not by default perform
character folding in order to match equivalent character sequences.
You can enable this behavior by customizing the variable
-@code{search-default-mode} to @code{character-fold-to-regexp}.
+@code{search-default-mode} to @code{char-fold-to-regexp}.
@xref{Search Customizations}. Within an incremental search, typing
-@kbd{M-s '} (@code{isearch-toggle-character-fold}) toggles character
+@kbd{M-s '} (@code{isearch-toggle-char-fold}) toggles character
folding, but only for that search. (Replace commands have a different
default, controlled by a separate option; see @ref{Replacement and Lax
Matches}.)
(@pxref{Lax Search, character folding}) when looking for the text to
replace. To enable character folding for matching in
@code{query-replace} and @code{replace-string}, set the variable
-@code{replace-character-fold} to a non-@code{nil} value. (This
+@code{replace-char-fold} to a non-@code{nil} value. (This
setting does not affect the replacement text, only how Emacs finds the
text to replace. It also doesn't affect @code{replace-regexp}.)