Mx shell在其他窗口打開shell

Question

在以前的emacs中，“Mx shell”在當前窗口中新建了一個shell緩沖區。

但最近，我將我的emacs更新為GNU Emacs 26.0.50.2。 “Mx shell”在其他窗口中新建了一個shell緩沖區。 我搜索谷歌，找不到答案。 有誰知道如何防止這種行為。

Answer 1

在.emacs文件中添加以下行：

(push (cons "\\*shell\\*" display-buffer--same-window-action) display-buffer-alist)

這為我修好了。 我在Mac上使用eMacs 25.2（9.0），並且在另一個框架中開放的外殼變得非常惱火，甚至在只有一個框架時打開一個新框架。 這是我得到這個答案的來源。

Answer 2

除非您自定義shell緩沖區的名稱，否則這應該是您所需要的：

(add-to-list 'display-buffer-alist
             `(,(regexp-quote "*shell") display-buffer-same-window))

要處理所有shell緩沖區，無論它們的名稱如何，您都可以使用以下建議：

(defun shell-same-window-advice (orig-fn &optional buffer)
  "Advice to make `shell' reuse the current window.

Intended as :around advice."
  (let* ((buffer-regexp
          (regexp-quote
           (cond ((bufferp buffer)  (buffer-name buffer))
                 ((stringp buffer)  buffer)
                 (:else             "*shell*"))))
         (display-buffer-alist
          (cons `(,buffer-regexp display-buffer-same-window)
                display-buffer-alist)))
    (funcall orig-fn buffer)))

(advice-add 'shell :around #'shell-same-window-advice)

Answer 3

原因是shell使用(pop-to-buffer buffer)而不是(switch-to-buffer buffer) 。 我不知道如何建議這個功能，所以我不能給你一個合適的答案。 但是，如果您只希望shell以您希望的方式工作，您只需在配置中添加整個功能即可。

也許其他人可以用建議替換這個功能。 我會對這個解決方案感興趣。

(defun shell (&optional buffer)
  "Run an inferior shell, with I/O through BUFFER (which defaults to `*shell*').
Interactively, a prefix arg means to prompt for BUFFER.
If `default-directory' is a remote file name, it is also prompted
to change if called with a prefix arg.

If BUFFER exists but shell process is not running, make new shell.
If BUFFER exists and shell process is running, just switch to BUFFER.
Program used comes from variable `explicit-shell-file-name',
 or (if that is nil) from the ESHELL environment variable,
 or (if that is nil) from `shell-file-name'.
If a file `~/.emacs_SHELLNAME' exists, or `~/.emacs.d/init_SHELLNAME.sh',
it is given as initial input (but this may be lost, due to a timing
error, if the shell discards input when it starts up).
The buffer is put in Shell mode, giving commands for sending input
and controlling the subjobs of the shell.  See `shell-mode'.
See also the variable `shell-prompt-pattern'.

To specify a coding system for converting non-ASCII characters
in the input and output to the shell, use \\[universal-coding-system-argument]
before \\[shell].  You can also specify this with \\[set-buffer-process-coding-system]
in the shell buffer, after you start the shell.
The default comes from `process-coding-system-alist' and
`default-process-coding-system'.

The shell file name (sans directories) is used to make a symbol name
such as `explicit-csh-args'.  If that symbol is a variable,
its value is used as a list of arguments when invoking the shell.
Otherwise, one argument `-i' is passed to the shell.

\(Type \\[describe-mode] in the shell buffer for a list of commands.)"
  (interactive
   (list
    (and current-prefix-arg
         (prog1
             (read-buffer "Shell buffer: "
                          ;; If the current buffer is an inactive
                          ;; shell buffer, use it as the default.
                          (if (and (eq major-mode 'shell-mode)
                                   (null (get-buffer-process (current-buffer))))
                              (buffer-name)
                            (generate-new-buffer-name "*shell*")))
           (if (file-remote-p default-directory)
               ;; It must be possible to declare a local default-directory.
               ;; FIXME: This can't be right: it changes the default-directory
               ;; of the current-buffer rather than of the *shell* buffer.
               (setq default-directory
                     (expand-file-name
                      (read-directory-name
                       "Default directory: " default-directory default-directory
                       t nil))))))))
  (setq buffer (if (or buffer (not (derived-mode-p 'shell-mode))
                       (comint-check-proc (current-buffer)))
                   (get-buffer-create (or buffer "*shell*"))
                 ;; If the current buffer is a dead shell buffer, use it.
                 (current-buffer)))

  ;; On remote hosts, the local `shell-file-name' might be useless.
  (if (and (called-interactively-p 'any)
           (file-remote-p default-directory)
           (null explicit-shell-file-name)
           (null (getenv "ESHELL")))
      (with-current-buffer buffer
        (set (make-local-variable 'explicit-shell-file-name)
             (file-remote-p
              (expand-file-name
               (read-file-name
                "Remote shell path: " default-directory shell-file-name
                t shell-file-name))
              'localname))))

  ;; The buffer's window must be correctly set when we call comint (so
  ;; that comint sets the COLUMNS env var properly).
  (switch-to-buffer buffer)
  (unless (comint-check-proc buffer)
    (let* ((prog (or explicit-shell-file-name
                     (getenv "ESHELL") shell-file-name))
           (name (file-name-nondirectory prog))
           (startfile (concat "~/.emacs_" name))
           (xargs-name (intern-soft (concat "explicit-" name "-args"))))
      (unless (file-exists-p startfile)
        (setq startfile (concat user-emacs-directory "init_" name ".sh")))
      (apply 'make-comint-in-buffer "shell" buffer prog
             (if (file-exists-p startfile) startfile)
             (if (and xargs-name (boundp xargs-name))
                 (symbol-value xargs-name)
               '("-i")))
      (shell-mode)))
  buffer)