matlab - Emacs 缓冲区撤消限制

Question

matlab-shell当我将大量打印到标准输出时，我在缓冲区中收到此警告：

Warning (undo): Buffer `*MATLAB*' undo info was 12268000 bytes long.
The undo info was discarded because it exceeded `undo-outer-limit'.

This is normal if you executed a command that made a huge change
to the buffer.  In that case, to prevent similar problems in the
future, set `undo-outer-limit' to a value that is large enough to
cover the maximum size of normal changes you expect a single
command to make, but not so large that it might exceed the
maximum memory allotted to Emacs.

我的emacs看起来像这样：

我真的不需要matlab-shell在正确的缓冲区中进行任何撤消。有没有办法禁用这个警告？请注意，左侧缓冲区是一个MATLAB脚本，这意味着主要模式是 MATLAB，当然不应该在此处禁用撤消。

Answer 1

正如该警告消息所说（或曾经说过？）：

您可以通过将条目添加到库中定义(undo discard-info)的用户选项来禁用此缓冲区的弹出 。warning-suppress-typeswarnings

那是：

(add-to-list 'warning-suppress-types '(undo discard-info))

（这当然只会禁用警告，而不是撤消数据收集本身。）

Answer 2

您的问题有点模棱两可，但假设您说您不需要撤消此缓冲区中的内容，那么您可以在每个缓冲区的基础上禁用撤消系统：

buffer-disable-undo is an interactive compiled Lisp function in `simple.el'.

(buffer-disable-undo &optional BUFFER)

Make BUFFER stop keeping undo information.
No argument or nil as argument means do this for the current buffer.

所以你可以M-x buffer-disable-undo RET交互调用，或者如果你确定它，你可以将它添加到相关模式的钩子函数中。

编辑：

因此，根据问题评论中的额外信息，我建议：

(add-hook 'matlab-shell-mode-hook 'buffer-disable-undo)