Document custom-variable-history

* etc/NEWS:
* doc/lispref/minibuf.texi (Minibuffer History): Document
'custom-variable-history'.

diff --git a/doc/lispref/minibuf.texi b/doc/lispref/minibuf.texi
index 1d1c93dd144299758c4f6edba5d524990fd11e8e..338e03ef74d05917ec1e0a2fdcd286e3198ab938 100644 (file)
--- a/doc/lispref/minibuf.texi
+++ b/doc/lispref/minibuf.texi
@@ -634,6 +634,12 @@ A history list for arguments that are Lisp expressions to evaluate.
 A history list for arguments that are faces.
 @end defvar
 
+@findex read-variable@r{, history list}
+@defvar custom-variable-history
+A history list for variable-name arguments read by
+@code{read-variable}.
+@end defvar
+
 @c Less common: coding-system-history, input-method-history,
 @c command-history, grep-history, grep-find-history,
 @c read-envvar-name-history, setenv-history, yes-or-no-p-history.

diff --git a/etc/NEWS b/etc/NEWS
index b3fee089fa9cb19f2b39f266e0407f48dbad753c..a510c03956acd122c5fe8c594b8192acf72a896d 100644 (file)
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -474,6 +474,11 @@ depending on the new customizable variable 'read-answer-short'.
 Specifically, it puts the module name into 'load-history', prints
 loading messages if requested, and protects against recursive loads.
 
++++
+** The function 'read-variable' now uses its own history list.
+The history of variable names read by 'read-variable' is recorded in
+the new variable 'custom-variable-history'.
+
 \f
 * Changes in Emacs 27.1 on Non-Free Operating Systems