emacs - 如果是 org-agenda-mode，用 "Args out of range: 0, 0" 代替更漂亮的消息

Question

我了解错误消息意味着没有符合搜索条件的待办事项条目：

org-agenda-find-same-or-today-or-agenda: Args out of range: 0, 0

有没有办法生成更漂亮的消息：

(if (and (eq major-mode 'org-agenda-mode)
      (org-agenda-find-same-or-today-or-agenda: Args out of range: 0, 0) )
  (message "There are no events that match your search criteria."))

Answer 1

您可以使用condition-case来处理该标准错误：

 (if (and (eq major-mode 'org-agenda-mode)
          (condition-case err
              (org-agenda-find-same-or-today-or-agenda ...) ; Whatever args you need to pass.
            (args-out-of-range (error "There are no events that match your search criteria"))
            (error (error (error-message-string err)))))
     ...)

但是，听起来您应该更正代码以防止该错误。你不能org-agenda-find-same-or-today-or-agenda在调用它之前测试参数，并且只有在参数有效时才调用它？