Fix minibuffer histoty completion for Emacs-27.2

2021-12-12 03:31:47 +01:00 · 2021-12-12 03:31:47 +01:00 · fc0a81fd1f
parent 2faaa1a028
commit fc0a81fd1f
1 changed files with 8 additions and 0 deletions
--- a/README.org
+++ b/README.org
@ -538,6 +538,14 @@ previous input in the minibuffer.

  (add-hook 'minibuffer-setup-hook 'minibuffer-setup-history-completions)

+  ;; Stolen from Emacs-28.1 for Emacs-27.2:
+  (unless (fboundp 'minibuffer--completion-prompt-end)
+    (defun minibuffer--completion-prompt-end ()
+      (let ((end (minibuffer-prompt-end)))
+        (if (< (point) end)
+            (user-error "Can't complete in prompt")
+          end))))
+
  ;; Adapted from ‘minibuffer-complete’:
  (defun my-minibuffer-complete-history ()
    (interactive)