例如在此宏定义中使用的:

(defmacro with-eval-after-load-feature (feature &rest body)
  (declare (indent 1) (debug t))
  (let* ((feature (if (and (listp feature) (eq (car-safe feature) 'quote))
                      (cdr feature) feature))
         (fs (if (listp feature) feature (list feature)))
         (form (or (and (eval '(eval-when (compile)
                                 (with-eval-after-load-feature-preload fs)))
                        'with-no-warnings)
                   'progn)))
    `(,form ,@(with-eval-after-load-feature-transform fs body))))


this file中。

最佳答案

它用于在反引号表达式中进行拼接。参见C-h i g (elisp) Backquote RET。例如:

elisp> `(1 2 ,(list 3 4))  ; no splicing => nested list
(1 2
   (3 4))

elisp> `(1 2 ,@(list 3 4)) ; splicing => flat list
(1 2 3 4)

关于emacs - @字符在Emacs Lisp中的作用是什么?,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/33586276/

10-15 01:03